- how to use the seq_file API
sharedsubtree.txt
- a description of shared subtrees for namespaces.
-smbfs.txt
- - info on using filesystems with the SMB protocol (Win 3.11 and NT).
spufs.txt
- info and mount options for the SPU filesystem used on Cell.
sysfs-pci.txt
+++ /dev/null
-Smbfs is a filesystem that implements the SMB protocol, which is the
-protocol used by Windows for Workgroups, Windows 95 and Windows NT.
-Smbfs was inspired by Samba, the program written by Andrew Tridgell
-that turns any Unix host into a file server for DOS or Windows clients.
-
-Smbfs is a SMB client, but uses parts of samba for its operation. For
-more info on samba, including documentation, please go to
-http://www.samba.org/ and then on to your nearest mirror.
't' 00-7F linux/if_ppp.h
't' 80-8F linux/isdn_ppp.h
't' 90 linux/toshiba.h
-'u' 00-1F linux/smb_fs.h
+'u' 00-1F linux/smb_fs.h gone
'v' all linux/videodev.h conflict!
'v' 00-1F linux/ext2_fs.h conflict!
'v' 00-1F linux/fs.h conflict!
source "drivers/staging/lirc/Kconfig"
+source "drivers/staging/smbfs/Kconfig"
+
source "drivers/staging/easycap/Kconfig"
source "drivers/staging/solo6x10/Kconfig"
obj-$(CONFIG_IDE_PHISON) += phison/
obj-$(CONFIG_LINE6_USB) += line6/
obj-$(CONFIG_USB_SERIAL_QUATECH2) += serqt_usb2/
+obj-$(CONFIG_SMB_FS) += smbfs/
obj-$(CONFIG_USB_SERIAL_QUATECH_USB2) += quatech_usb2/
obj-$(CONFIG_OCTEON_ETHERNET) += octeon/
obj-$(CONFIG_VT6655) += vt6655/
--- /dev/null
+config SMB_FS
+ tristate "SMB file system support (OBSOLETE, please use CIFS)"
+ depends on INET
+ select NLS
+ help
+ SMB (Server Message Block) is the protocol Windows for Workgroups
+ (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
+ files and printers over local networks. Saying Y here allows you to
+ mount their file systems (often called "shares" in this context) and
+ access them just like any other Unix directory. Currently, this
+ works only if the Windows machines use TCP/IP as the underlying
+ transport protocol, and not NetBEUI. For details, read
+ <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
+ available from <http://www.tldp.org/docs.html#howto>.
+
+ Note: if you just want your box to act as an SMB *server* and make
+ files and printing services available to Windows clients (which need
+ to have a TCP/IP stack), you don't need to say Y here; you can use
+ the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
+ for that.
+
+ General information about how to connect Linux, Windows machines and
+ Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
+
+ To compile the SMB support as a module, choose M here:
+ the module will be called smbfs. Most people say N, however.
+
+config SMB_NLS_DEFAULT
+ bool "Use a default NLS"
+ depends on SMB_FS
+ help
+ Enabling this will make smbfs use nls translations by default. You
+ need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
+ settings and you need to give the default nls for the SMB server as
+ CONFIG_SMB_NLS_REMOTE.
+
+ The nls settings can be changed at mount time, if your smbmount
+ supports that, using the codepage and iocharset parameters.
+
+ smbmount from samba 2.2.0 or later supports this.
+
+config SMB_NLS_REMOTE
+ string "Default Remote NLS Option"
+ depends on SMB_NLS_DEFAULT
+ default "cp437"
+ help
+ This setting allows you to specify a default value for which
+ codepage the server uses. If this field is left blank no
+ translations will be done by default. The local codepage/charset
+ default to CONFIG_NLS_DEFAULT.
+
+ The nls settings can be changed at mount time, if your smbmount
+ supports that, using the codepage and iocharset parameters.
+
+ smbmount from samba 2.2.0 or later supports this.
--- /dev/null
+#
+# Makefile for the linux smb-filesystem routines.
+#
+
+obj-$(CONFIG_SMB_FS) += smbfs.o
+
+smbfs-objs := proc.o dir.o cache.o sock.o inode.o file.o ioctl.o getopt.o \
+ symlink.o smbiod.o request.o
+
+# If you want debugging output, you may add these flags to the EXTRA_CFLAGS
+# SMBFS_PARANOIA should normally be enabled.
+
+EXTRA_CFLAGS += -DSMBFS_PARANOIA
+#EXTRA_CFLAGS += -DSMBFS_DEBUG
+#EXTRA_CFLAGS += -DSMBFS_DEBUG_VERBOSE
+#EXTRA_CFLAGS += -DDEBUG_SMB_TIMESTAMP
+#EXTRA_CFLAGS += -Werror
+
--- /dev/null
+smbfs is on its way out of the kernel, it has been replaced
+by cifs several years ago.
+
+The smbfs code uses the big kernel lock which
+is getting deprecated.
+
+Users that find smbfs to work but not cifs should contact
+the CIFS developers on linux-cifs@vger.kernel.org.
--- /dev/null
+/*
+ * cache.c
+ *
+ * Copyright (C) 1997 by Bill Hawes
+ *
+ * Routines to support directory cacheing using the page cache.
+ * This cache code is almost directly taken from ncpfs.
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/time.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/net.h>
+
+#include <asm/page.h>
+
+#include "smb_fs.h"
+#include "smb_debug.h"
+#include "proto.h"
+
+/*
+ * Force the next attempt to use the cache to be a timeout.
+ * If we can't find the page that's fine, it will cause a refresh.
+ */
+void
+smb_invalid_dir_cache(struct inode * dir)
+{
+ struct smb_sb_info *server = server_from_inode(dir);
+ union smb_dir_cache *cache = NULL;
+ struct page *page = NULL;
+
+ page = grab_cache_page(&dir->i_data, 0);
+ if (!page)
+ goto out;
+
+ if (!PageUptodate(page))
+ goto out_unlock;
+
+ cache = kmap(page);
+ cache->head.time = jiffies - SMB_MAX_AGE(server);
+
+ kunmap(page);
+ SetPageUptodate(page);
+out_unlock:
+ unlock_page(page);
+ page_cache_release(page);
+out:
+ return;
+}
+
+/*
+ * Mark all dentries for 'parent' as invalid, forcing them to be re-read
+ */
+void
+smb_invalidate_dircache_entries(struct dentry *parent)
+{
+ struct smb_sb_info *server = server_from_dentry(parent);
+ struct list_head *next;
+ struct dentry *dentry;
+
+ spin_lock(&dcache_lock);
+ next = parent->d_subdirs.next;
+ while (next != &parent->d_subdirs) {
+ dentry = list_entry(next, struct dentry, d_u.d_child);
+ dentry->d_fsdata = NULL;
+ smb_age_dentry(server, dentry);
+ next = next->next;
+ }
+ spin_unlock(&dcache_lock);
+}
+
+/*
+ * dget, but require that fpos and parent matches what the dentry contains.
+ * dentry is not known to be a valid pointer at entry.
+ */
+struct dentry *
+smb_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos)
+{
+ struct dentry *dent = dentry;
+ struct list_head *next;
+
+ if (d_validate(dent, parent)) {
+ if (dent->d_name.len <= SMB_MAXNAMELEN &&
+ (unsigned long)dent->d_fsdata == fpos) {
+ if (!dent->d_inode) {
+ dput(dent);
+ dent = NULL;
+ }
+ return dent;
+ }
+ dput(dent);
+ }
+
+ /* If a pointer is invalid, we search the dentry. */
+ spin_lock(&dcache_lock);
+ next = parent->d_subdirs.next;
+ while (next != &parent->d_subdirs) {
+ dent = list_entry(next, struct dentry, d_u.d_child);
+ if ((unsigned long)dent->d_fsdata == fpos) {
+ if (dent->d_inode)
+ dget_locked(dent);
+ else
+ dent = NULL;
+ goto out_unlock;
+ }
+ next = next->next;
+ }
+ dent = NULL;
+out_unlock:
+ spin_unlock(&dcache_lock);
+ return dent;
+}
+
+
+/*
+ * Create dentry/inode for this file and add it to the dircache.
+ */
+int
+smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ struct smb_cache_control *ctrl, struct qstr *qname,
+ struct smb_fattr *entry)
+{
+ struct dentry *newdent, *dentry = filp->f_path.dentry;
+ struct inode *newino, *inode = dentry->d_inode;
+ struct smb_cache_control ctl = *ctrl;
+ int valid = 0;
+ int hashed = 0;
+ ino_t ino = 0;
+
+ qname->hash = full_name_hash(qname->name, qname->len);
+
+ if (dentry->d_op && dentry->d_op->d_hash)
+ if (dentry->d_op->d_hash(dentry, qname) != 0)
+ goto end_advance;
+
+ newdent = d_lookup(dentry, qname);
+
+ if (!newdent) {
+ newdent = d_alloc(dentry, qname);
+ if (!newdent)
+ goto end_advance;
+ } else {
+ hashed = 1;
+ memcpy((char *) newdent->d_name.name, qname->name,
+ newdent->d_name.len);
+ }
+
+ if (!newdent->d_inode) {
+ smb_renew_times(newdent);
+ entry->f_ino = iunique(inode->i_sb, 2);
+ newino = smb_iget(inode->i_sb, entry);
+ if (newino) {
+ smb_new_dentry(newdent);
+ d_instantiate(newdent, newino);
+ if (!hashed)
+ d_rehash(newdent);
+ }
+ } else
+ smb_set_inode_attr(newdent->d_inode, entry);
+
+ if (newdent->d_inode) {
+ ino = newdent->d_inode->i_ino;
+ newdent->d_fsdata = (void *) ctl.fpos;
+ smb_new_dentry(newdent);
+ }
+
+ if (ctl.idx >= SMB_DIRCACHE_SIZE) {
+ if (ctl.page) {
+ kunmap(ctl.page);
+ SetPageUptodate(ctl.page);
+ unlock_page(ctl.page);
+ page_cache_release(ctl.page);
+ }
+ ctl.cache = NULL;
+ ctl.idx -= SMB_DIRCACHE_SIZE;
+ ctl.ofs += 1;
+ ctl.page = grab_cache_page(&inode->i_data, ctl.ofs);
+ if (ctl.page)
+ ctl.cache = kmap(ctl.page);
+ }
+ if (ctl.cache) {
+ ctl.cache->dentry[ctl.idx] = newdent;
+ valid = 1;
+ }
+ dput(newdent);
+
+end_advance:
+ if (!valid)
+ ctl.valid = 0;
+ if (!ctl.filled && (ctl.fpos == filp->f_pos)) {
+ if (!ino)
+ ino = find_inode_number(dentry, qname);
+ if (!ino)
+ ino = iunique(inode->i_sb, 2);
+ ctl.filled = filldir(dirent, qname->name, qname->len,
+ filp->f_pos, ino, DT_UNKNOWN);
+ if (!ctl.filled)
+ filp->f_pos += 1;
+ }
+ ctl.fpos += 1;
+ ctl.idx += 1;
+ *ctrl = ctl;
+ return (ctl.valid || !ctl.filled);
+}
--- /dev/null
+/*
+ * dir.c
+ *
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/time.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/smp_lock.h>
+#include <linux/ctype.h>
+#include <linux/net.h>
+#include <linux/sched.h>
+
+#include "smb_fs.h"
+#include "smb_mount.h"
+#include "smbno.h"
+
+#include "smb_debug.h"
+#include "proto.h"
+
+static int smb_readdir(struct file *, void *, filldir_t);
+static int smb_dir_open(struct inode *, struct file *);
+
+static struct dentry *smb_lookup(struct inode *, struct dentry *, struct nameidata *);
+static int smb_create(struct inode *, struct dentry *, int, struct nameidata *);
+static int smb_mkdir(struct inode *, struct dentry *, int);
+static int smb_rmdir(struct inode *, struct dentry *);
+static int smb_unlink(struct inode *, struct dentry *);
+static int smb_rename(struct inode *, struct dentry *,
+ struct inode *, struct dentry *);
+static int smb_make_node(struct inode *,struct dentry *,int,dev_t);
+static int smb_link(struct dentry *, struct inode *, struct dentry *);
+
+const struct file_operations smb_dir_operations =
+{
+ .llseek = generic_file_llseek,
+ .read = generic_read_dir,
+ .readdir = smb_readdir,
+ .unlocked_ioctl = smb_ioctl,
+ .open = smb_dir_open,
+};
+
+const struct inode_operations smb_dir_inode_operations =
+{
+ .create = smb_create,
+ .lookup = smb_lookup,
+ .unlink = smb_unlink,
+ .mkdir = smb_mkdir,
+ .rmdir = smb_rmdir,
+ .rename = smb_rename,
+ .getattr = smb_getattr,
+ .setattr = smb_notify_change,
+};
+
+const struct inode_operations smb_dir_inode_operations_unix =
+{
+ .create = smb_create,
+ .lookup = smb_lookup,
+ .unlink = smb_unlink,
+ .mkdir = smb_mkdir,
+ .rmdir = smb_rmdir,
+ .rename = smb_rename,
+ .getattr = smb_getattr,
+ .setattr = smb_notify_change,
+ .symlink = smb_symlink,
+ .mknod = smb_make_node,
+ .link = smb_link,
+};
+
+/*
+ * Read a directory, using filldir to fill the dirent memory.
+ * smb_proc_readdir does the actual reading from the smb server.
+ *
+ * The cache code is almost directly taken from ncpfs
+ */
+static int
+smb_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+ struct dentry *dentry = filp->f_path.dentry;
+ struct inode *dir = dentry->d_inode;
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ union smb_dir_cache *cache = NULL;
+ struct smb_cache_control ctl;
+ struct page *page = NULL;
+ int result;
+
+ ctl.page = NULL;
+ ctl.cache = NULL;
+
+ VERBOSE("reading %s/%s, f_pos=%d\n",
+ DENTRY_PATH(dentry), (int) filp->f_pos);
+
+ result = 0;
+
+ lock_kernel();
+
+ switch ((unsigned int) filp->f_pos) {
+ case 0:
+ if (filldir(dirent, ".", 1, 0, dir->i_ino, DT_DIR) < 0)
+ goto out;
+ filp->f_pos = 1;
+ /* fallthrough */
+ case 1:
+ if (filldir(dirent, "..", 2, 1, parent_ino(dentry), DT_DIR) < 0)
+ goto out;
+ filp->f_pos = 2;
+ }
+
+ /*
+ * Make sure our inode is up-to-date.
+ */
+ result = smb_revalidate_inode(dentry);
+ if (result)
+ goto out;
+
+
+ page = grab_cache_page(&dir->i_data, 0);
+ if (!page)
+ goto read_really;
+
+ ctl.cache = cache = kmap(page);
+ ctl.head = cache->head;
+
+ if (!PageUptodate(page) || !ctl.head.eof) {
+ VERBOSE("%s/%s, page uptodate=%d, eof=%d\n",
+ DENTRY_PATH(dentry), PageUptodate(page),ctl.head.eof);
+ goto init_cache;
+ }
+
+ if (filp->f_pos == 2) {
+ if (jiffies - ctl.head.time >= SMB_MAX_AGE(server))
+ goto init_cache;
+
+ /*
+ * N.B. ncpfs checks mtime of dentry too here, we don't.
+ * 1. common smb servers do not update mtime on dir changes
+ * 2. it requires an extra smb request
+ * (revalidate has the same timeout as ctl.head.time)
+ *
+ * Instead smbfs invalidates its own cache on local changes
+ * and remote changes are not seen until timeout.
+ */
+ }
+
+ if (filp->f_pos > ctl.head.end)
+ goto finished;
+
+ ctl.fpos = filp->f_pos + (SMB_DIRCACHE_START - 2);
+ ctl.ofs = ctl.fpos / SMB_DIRCACHE_SIZE;
+ ctl.idx = ctl.fpos % SMB_DIRCACHE_SIZE;
+
+ for (;;) {
+ if (ctl.ofs != 0) {
+ ctl.page = find_lock_page(&dir->i_data, ctl.ofs);
+ if (!ctl.page)
+ goto invalid_cache;
+ ctl.cache = kmap(ctl.page);
+ if (!PageUptodate(ctl.page))
+ goto invalid_cache;
+ }
+ while (ctl.idx < SMB_DIRCACHE_SIZE) {
+ struct dentry *dent;
+ int res;
+
+ dent = smb_dget_fpos(ctl.cache->dentry[ctl.idx],
+ dentry, filp->f_pos);
+ if (!dent)
+ goto invalid_cache;
+
+ res = filldir(dirent, dent->d_name.name,
+ dent->d_name.len, filp->f_pos,
+ dent->d_inode->i_ino, DT_UNKNOWN);
+ dput(dent);
+ if (res)
+ goto finished;
+ filp->f_pos += 1;
+ ctl.idx += 1;
+ if (filp->f_pos > ctl.head.end)
+ goto finished;
+ }
+ if (ctl.page) {
+ kunmap(ctl.page);
+ SetPageUptodate(ctl.page);
+ unlock_page(ctl.page);
+ page_cache_release(ctl.page);
+ ctl.page = NULL;
+ }
+ ctl.idx = 0;
+ ctl.ofs += 1;
+ }
+invalid_cache:
+ if (ctl.page) {
+ kunmap(ctl.page);
+ unlock_page(ctl.page);
+ page_cache_release(ctl.page);
+ ctl.page = NULL;
+ }
+ ctl.cache = cache;
+init_cache:
+ smb_invalidate_dircache_entries(dentry);
+ ctl.head.time = jiffies;
+ ctl.head.eof = 0;
+ ctl.fpos = 2;
+ ctl.ofs = 0;
+ ctl.idx = SMB_DIRCACHE_START;
+ ctl.filled = 0;
+ ctl.valid = 1;
+read_really:
+ result = server->ops->readdir(filp, dirent, filldir, &ctl);
+ if (result == -ERESTARTSYS && page)
+ ClearPageUptodate(page);
+ if (ctl.idx == -1)
+ goto invalid_cache; /* retry */
+ ctl.head.end = ctl.fpos - 1;
+ ctl.head.eof = ctl.valid;
+finished:
+ if (page) {
+ cache->head = ctl.head;
+ kunmap(page);
+ if (result != -ERESTARTSYS)
+ SetPageUptodate(page);
+ unlock_page(page);
+ page_cache_release(page);
+ }
+ if (ctl.page) {
+ kunmap(ctl.page);
+ SetPageUptodate(ctl.page);
+ unlock_page(ctl.page);
+ page_cache_release(ctl.page);
+ }
+out:
+ unlock_kernel();
+ return result;
+}
+
+static int
+smb_dir_open(struct inode *dir, struct file *file)
+{
+ struct dentry *dentry = file->f_path.dentry;
+ struct smb_sb_info *server;
+ int error = 0;
+
+ VERBOSE("(%s/%s)\n", dentry->d_parent->d_name.name,
+ file->f_path.dentry->d_name.name);
+
+ /*
+ * Directory timestamps in the core protocol aren't updated
+ * when a file is added, so we give them a very short TTL.
+ */
+ lock_kernel();
+ server = server_from_dentry(dentry);
+ if (server->opt.protocol < SMB_PROTOCOL_LANMAN2) {
+ unsigned long age = jiffies - SMB_I(dir)->oldmtime;
+ if (age > 2*HZ)
+ smb_invalid_dir_cache(dir);
+ }
+
+ /*
+ * Note: in order to allow the smbmount process to open the
+ * mount point, we only revalidate if the connection is valid or
+ * if the process is trying to access something other than the root.
+ */
+ if (server->state == CONN_VALID || !IS_ROOT(dentry))
+ error = smb_revalidate_inode(dentry);
+ unlock_kernel();
+ return error;
+}
+
+/*
+ * Dentry operations routines
+ */
+static int smb_lookup_validate(struct dentry *, struct nameidata *);
+static int smb_hash_dentry(struct dentry *, struct qstr *);
+static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
+static int smb_delete_dentry(struct dentry *);
+
+static const struct dentry_operations smbfs_dentry_operations =
+{
+ .d_revalidate = smb_lookup_validate,
+ .d_hash = smb_hash_dentry,
+ .d_compare = smb_compare_dentry,
+ .d_delete = smb_delete_dentry,
+};
+
+static const struct dentry_operations smbfs_dentry_operations_case =
+{
+ .d_revalidate = smb_lookup_validate,
+ .d_delete = smb_delete_dentry,
+};
+
+
+/*
+ * This is the callback when the dcache has a lookup hit.
+ */
+static int
+smb_lookup_validate(struct dentry * dentry, struct nameidata *nd)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ struct inode * inode = dentry->d_inode;
+ unsigned long age = jiffies - dentry->d_time;
+ int valid;
+
+ /*
+ * The default validation is based on dentry age:
+ * we believe in dentries for a few seconds. (But each
+ * successful server lookup renews the timestamp.)
+ */
+ valid = (age <= SMB_MAX_AGE(server));
+#ifdef SMBFS_DEBUG_VERBOSE
+ if (!valid)
+ VERBOSE("%s/%s not valid, age=%lu\n",
+ DENTRY_PATH(dentry), age);
+#endif
+
+ if (inode) {
+ lock_kernel();
+ if (is_bad_inode(inode)) {
+ PARANOIA("%s/%s has dud inode\n", DENTRY_PATH(dentry));
+ valid = 0;
+ } else if (!valid)
+ valid = (smb_revalidate_inode(dentry) == 0);
+ unlock_kernel();
+ } else {
+ /*
+ * What should we do for negative dentries?
+ */
+ }
+ return valid;
+}
+
+static int
+smb_hash_dentry(struct dentry *dir, struct qstr *this)
+{
+ unsigned long hash;
+ int i;
+
+ hash = init_name_hash();
+ for (i=0; i < this->len ; i++)
+ hash = partial_name_hash(tolower(this->name[i]), hash);
+ this->hash = end_name_hash(hash);
+
+ return 0;
+}
+
+static int
+smb_compare_dentry(struct dentry *dir, struct qstr *a, struct qstr *b)
+{
+ int i, result = 1;
+
+ if (a->len != b->len)
+ goto out;
+ for (i=0; i < a->len; i++) {
+ if (tolower(a->name[i]) != tolower(b->name[i]))
+ goto out;
+ }
+ result = 0;
+out:
+ return result;
+}
+
+/*
+ * This is the callback from dput() when d_count is going to 0.
+ * We use this to unhash dentries with bad inodes.
+ */
+static int
+smb_delete_dentry(struct dentry * dentry)
+{
+ if (dentry->d_inode) {
+ if (is_bad_inode(dentry->d_inode)) {
+ PARANOIA("bad inode, unhashing %s/%s\n",
+ DENTRY_PATH(dentry));
+ return 1;
+ }
+ } else {
+ /* N.B. Unhash negative dentries? */
+ }
+ return 0;
+}
+
+/*
+ * Initialize a new dentry
+ */
+void
+smb_new_dentry(struct dentry *dentry)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+
+ if (server->mnt->flags & SMB_MOUNT_CASE)
+ dentry->d_op = &smbfs_dentry_operations_case;
+ else
+ dentry->d_op = &smbfs_dentry_operations;
+ dentry->d_time = jiffies;
+}
+
+
+/*
+ * Whenever a lookup succeeds, we know the parent directories
+ * are all valid, so we want to update the dentry timestamps.
+ * N.B. Move this to dcache?
+ */
+void
+smb_renew_times(struct dentry * dentry)
+{
+ dget(dentry);
+ spin_lock(&dentry->d_lock);
+ for (;;) {
+ struct dentry *parent;
+
+ dentry->d_time = jiffies;
+ if (IS_ROOT(dentry))
+ break;
+ parent = dentry->d_parent;
+ dget(parent);
+ spin_unlock(&dentry->d_lock);
+ dput(dentry);
+ dentry = parent;
+ spin_lock(&dentry->d_lock);
+ }
+ spin_unlock(&dentry->d_lock);
+ dput(dentry);
+}
+
+static struct dentry *
+smb_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
+{
+ struct smb_fattr finfo;
+ struct inode *inode;
+ int error;
+ struct smb_sb_info *server;
+
+ error = -ENAMETOOLONG;
+ if (dentry->d_name.len > SMB_MAXNAMELEN)
+ goto out;
+
+ /* Do not allow lookup of names with backslashes in */
+ error = -EINVAL;
+ if (memchr(dentry->d_name.name, '\\', dentry->d_name.len))
+ goto out;
+
+ lock_kernel();
+ error = smb_proc_getattr(dentry, &finfo);
+#ifdef SMBFS_PARANOIA
+ if (error && error != -ENOENT)
+ PARANOIA("find %s/%s failed, error=%d\n",
+ DENTRY_PATH(dentry), error);
+#endif
+
+ inode = NULL;
+ if (error == -ENOENT)
+ goto add_entry;
+ if (!error) {
+ error = -EACCES;
+ finfo.f_ino = iunique(dentry->d_sb, 2);
+ inode = smb_iget(dir->i_sb, &finfo);
+ if (inode) {
+ add_entry:
+ server = server_from_dentry(dentry);
+ if (server->mnt->flags & SMB_MOUNT_CASE)
+ dentry->d_op = &smbfs_dentry_operations_case;
+ else
+ dentry->d_op = &smbfs_dentry_operations;
+
+ d_add(dentry, inode);
+ smb_renew_times(dentry);
+ error = 0;
+ }
+ }
+ unlock_kernel();
+out:
+ return ERR_PTR(error);
+}
+
+/*
+ * This code is common to all routines creating a new inode.
+ */
+static int
+smb_instantiate(struct dentry *dentry, __u16 fileid, int have_id)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ struct inode *inode;
+ int error;
+ struct smb_fattr fattr;
+
+ VERBOSE("file %s/%s, fileid=%u\n", DENTRY_PATH(dentry), fileid);
+
+ error = smb_proc_getattr(dentry, &fattr);
+ if (error)
+ goto out_close;
+
+ smb_renew_times(dentry);
+ fattr.f_ino = iunique(dentry->d_sb, 2);
+ inode = smb_iget(dentry->d_sb, &fattr);
+ if (!inode)
+ goto out_no_inode;
+
+ if (have_id) {
+ struct smb_inode_info *ei = SMB_I(inode);
+ ei->fileid = fileid;
+ ei->access = SMB_O_RDWR;
+ ei->open = server->generation;
+ }
+ d_instantiate(dentry, inode);
+out:
+ return error;
+
+out_no_inode:
+ error = -EACCES;
+out_close:
+ if (have_id) {
+ PARANOIA("%s/%s failed, error=%d, closing %u\n",
+ DENTRY_PATH(dentry), error, fileid);
+ smb_close_fileid(dentry, fileid);
+ }
+ goto out;
+}
+
+/* N.B. How should the mode argument be used? */
+static int
+smb_create(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ __u16 fileid;
+ int error;
+ struct iattr attr;
+
+ VERBOSE("creating %s/%s, mode=%d\n", DENTRY_PATH(dentry), mode);
+
+ lock_kernel();
+ smb_invalid_dir_cache(dir);
+ error = smb_proc_create(dentry, 0, get_seconds(), &fileid);
+ if (!error) {
+ if (server->opt.capabilities & SMB_CAP_UNIX) {
+ /* Set attributes for new file */
+ attr.ia_valid = ATTR_MODE;
+ attr.ia_mode = mode;
+ error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
+ }
+ error = smb_instantiate(dentry, fileid, 1);
+ } else {
+ PARANOIA("%s/%s failed, error=%d\n",
+ DENTRY_PATH(dentry), error);
+ }
+ unlock_kernel();
+ return error;
+}
+
+/* N.B. How should the mode argument be used? */
+static int
+smb_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ int error;
+ struct iattr attr;
+
+ lock_kernel();
+ smb_invalid_dir_cache(dir);
+ error = smb_proc_mkdir(dentry);
+ if (!error) {
+ if (server->opt.capabilities & SMB_CAP_UNIX) {
+ /* Set attributes for new directory */
+ attr.ia_valid = ATTR_MODE;
+ attr.ia_mode = mode;
+ error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
+ }
+ error = smb_instantiate(dentry, 0, 0);
+ }
+ unlock_kernel();
+ return error;
+}
+
+static int
+smb_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ int error;
+
+ /*
+ * Close the directory if it's open.
+ */
+ lock_kernel();
+ smb_close(inode);
+
+ /*
+ * Check that nobody else is using the directory..
+ */
+ error = -EBUSY;
+ if (!d_unhashed(dentry))
+ goto out;
+
+ smb_invalid_dir_cache(dir);
+ error = smb_proc_rmdir(dentry);
+
+out:
+ unlock_kernel();
+ return error;
+}
+
+static int
+smb_unlink(struct inode *dir, struct dentry *dentry)
+{
+ int error;
+
+ /*
+ * Close the file if it's open.
+ */
+ lock_kernel();
+ smb_close(dentry->d_inode);
+
+ smb_invalid_dir_cache(dir);
+ error = smb_proc_unlink(dentry);
+ if (!error)
+ smb_renew_times(dentry);
+ unlock_kernel();
+ return error;
+}
+
+static int
+smb_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ int error;
+
+ /*
+ * Close any open files, and check whether to delete the
+ * target before attempting the rename.
+ */
+ lock_kernel();
+ if (old_dentry->d_inode)
+ smb_close(old_dentry->d_inode);
+ if (new_dentry->d_inode) {
+ smb_close(new_dentry->d_inode);
+ error = smb_proc_unlink(new_dentry);
+ if (error) {
+ VERBOSE("unlink %s/%s, error=%d\n",
+ DENTRY_PATH(new_dentry), error);
+ goto out;
+ }
+ /* FIXME */
+ d_delete(new_dentry);
+ }
+
+ smb_invalid_dir_cache(old_dir);
+ smb_invalid_dir_cache(new_dir);
+ error = smb_proc_mv(old_dentry, new_dentry);
+ if (!error) {
+ smb_renew_times(old_dentry);
+ smb_renew_times(new_dentry);
+ }
+out:
+ unlock_kernel();
+ return error;
+}
+
+/*
+ * FIXME: samba servers won't let you create device nodes unless uid/gid
+ * matches the connection credentials (and we don't know which those are ...)
+ */
+static int
+smb_make_node(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+{
+ int error;
+ struct iattr attr;
+
+ attr.ia_valid = ATTR_MODE | ATTR_UID | ATTR_GID;
+ attr.ia_mode = mode;
+ current_euid_egid(&attr.ia_uid, &attr.ia_gid);
+
+ if (!new_valid_dev(dev))
+ return -EINVAL;
+
+ smb_invalid_dir_cache(dir);
+ error = smb_proc_setattr_unix(dentry, &attr, MAJOR(dev), MINOR(dev));
+ if (!error) {
+ error = smb_instantiate(dentry, 0, 0);
+ }
+ return error;
+}
+
+/*
+ * dentry = existing file
+ * new_dentry = new file
+ */
+static int
+smb_link(struct dentry *dentry, struct inode *dir, struct dentry *new_dentry)
+{
+ int error;
+
+ DEBUG1("smb_link old=%s/%s new=%s/%s\n",
+ DENTRY_PATH(dentry), DENTRY_PATH(new_dentry));
+ smb_invalid_dir_cache(dir);
+ error = smb_proc_link(server_from_dentry(dentry), dentry, new_dentry);
+ if (!error) {
+ smb_renew_times(dentry);
+ error = smb_instantiate(new_dentry, 0, 0);
+ }
+ return error;
+}
--- /dev/null
+/*
+ * file.c
+ *
+ * Copyright (C) 1995, 1996, 1997 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/time.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+#include <linux/net.h>
+#include <linux/aio.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include "smbno.h"
+#include "smb_fs.h"
+#include "smb_debug.h"
+#include "proto.h"
+
+static int
+smb_fsync(struct file *file, int datasync)
+{
+ struct dentry *dentry = file->f_path.dentry;
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ int result;
+
+ VERBOSE("sync file %s/%s\n", DENTRY_PATH(dentry));
+
+ /*
+ * The VFS will writepage() all dirty pages for us, but we
+ * should send a SMBflush to the server, letting it know that
+ * we want things synchronized with actual storage.
+ *
+ * Note: this function requires all pages to have been written already
+ * (should be ok with writepage_sync)
+ */
+ result = smb_proc_flush(server, SMB_I(dentry->d_inode)->fileid);
+ return result;
+}
+
+/*
+ * Read a page synchronously.
+ */
+static int
+smb_readpage_sync(struct dentry *dentry, struct page *page)
+{
+ char *buffer = kmap(page);
+ loff_t offset = (loff_t)page->index << PAGE_CACHE_SHIFT;
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ unsigned int rsize = smb_get_rsize(server);
+ int count = PAGE_SIZE;
+ int result;
+
+ VERBOSE("file %s/%s, count=%d@%Ld, rsize=%d\n",
+ DENTRY_PATH(dentry), count, offset, rsize);
+
+ result = smb_open(dentry, SMB_O_RDONLY);
+ if (result < 0)
+ goto io_error;
+
+ do {
+ if (count < rsize)
+ rsize = count;
+
+ result = server->ops->read(dentry->d_inode,offset,rsize,buffer);
+ if (result < 0)
+ goto io_error;
+
+ count -= result;
+ offset += result;
+ buffer += result;
+ dentry->d_inode->i_atime =
+ current_fs_time(dentry->d_inode->i_sb);
+ if (result < rsize)
+ break;
+ } while (count);
+
+ memset(buffer, 0, count);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ result = 0;
+
+io_error:
+ kunmap(page);
+ unlock_page(page);
+ return result;
+}
+
+/*
+ * We are called with the page locked and we unlock it when done.
+ */
+static int
+smb_readpage(struct file *file, struct page *page)
+{
+ int error;
+ struct dentry *dentry = file->f_path.dentry;
+
+ page_cache_get(page);
+ error = smb_readpage_sync(dentry, page);
+ page_cache_release(page);
+ return error;
+}
+
+/*
+ * Write a page synchronously.
+ * Offset is the data offset within the page.
+ */
+static int
+smb_writepage_sync(struct inode *inode, struct page *page,
+ unsigned long pageoffset, unsigned int count)
+{
+ loff_t offset;
+ char *buffer = kmap(page) + pageoffset;
+ struct smb_sb_info *server = server_from_inode(inode);
+ unsigned int wsize = smb_get_wsize(server);
+ int ret = 0;
+
+ offset = ((loff_t)page->index << PAGE_CACHE_SHIFT) + pageoffset;
+ VERBOSE("file ino=%ld, fileid=%d, count=%d@%Ld, wsize=%d\n",
+ inode->i_ino, SMB_I(inode)->fileid, count, offset, wsize);
+
+ do {
+ int write_ret;
+
+ if (count < wsize)
+ wsize = count;
+
+ write_ret = server->ops->write(inode, offset, wsize, buffer);
+ if (write_ret < 0) {
+ PARANOIA("failed write, wsize=%d, write_ret=%d\n",
+ wsize, write_ret);
+ ret = write_ret;
+ break;
+ }
+ /* N.B. what if result < wsize?? */
+#ifdef SMBFS_PARANOIA
+ if (write_ret < wsize)
+ PARANOIA("short write, wsize=%d, write_ret=%d\n",
+ wsize, write_ret);
+#endif
+ buffer += wsize;
+ offset += wsize;
+ count -= wsize;
+ /*
+ * Update the inode now rather than waiting for a refresh.
+ */
+ inode->i_mtime = inode->i_atime = current_fs_time(inode->i_sb);
+ SMB_I(inode)->flags |= SMB_F_LOCALWRITE;
+ if (offset > inode->i_size)
+ inode->i_size = offset;
+ } while (count);
+
+ kunmap(page);
+ return ret;
+}
+
+/*
+ * Write a page to the server. This will be used for NFS swapping only
+ * (for now), and we currently do this synchronously only.
+ *
+ * We are called with the page locked and we unlock it when done.
+ */
+static int
+smb_writepage(struct page *page, struct writeback_control *wbc)
+{
+ struct address_space *mapping = page->mapping;
+ struct inode *inode;
+ unsigned long end_index;
+ unsigned offset = PAGE_CACHE_SIZE;
+ int err;
+
+ BUG_ON(!mapping);
+ inode = mapping->host;
+ BUG_ON(!inode);
+
+ end_index = inode->i_size >> PAGE_CACHE_SHIFT;
+
+ /* easy case */
+ if (page->index < end_index)
+ goto do_it;
+ /* things got complicated... */
+ offset = inode->i_size & (PAGE_CACHE_SIZE-1);
+ /* OK, are we completely out? */
+ if (page->index >= end_index+1 || !offset)
+ return 0; /* truncated - don't care */
+do_it:
+ page_cache_get(page);
+ err = smb_writepage_sync(inode, page, 0, offset);
+ SetPageUptodate(page);
+ unlock_page(page);
+ page_cache_release(page);
+ return err;
+}
+
+static int
+smb_updatepage(struct file *file, struct page *page, unsigned long offset,
+ unsigned int count)
+{
+ struct dentry *dentry = file->f_path.dentry;
+
+ DEBUG1("(%s/%s %d@%lld)\n", DENTRY_PATH(dentry), count,
+ ((unsigned long long)page->index << PAGE_CACHE_SHIFT) + offset);
+
+ return smb_writepage_sync(dentry->d_inode, page, offset, count);
+}
+
+static ssize_t
+smb_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos)
+{
+ struct file * file = iocb->ki_filp;
+ struct dentry * dentry = file->f_path.dentry;
+ ssize_t status;
+
+ VERBOSE("file %s/%s, count=%lu@%lu\n", DENTRY_PATH(dentry),
+ (unsigned long) iocb->ki_left, (unsigned long) pos);
+
+ status = smb_revalidate_inode(dentry);
+ if (status) {
+ PARANOIA("%s/%s validation failed, error=%Zd\n",
+ DENTRY_PATH(dentry), status);
+ goto out;
+ }
+
+ VERBOSE("before read, size=%ld, flags=%x, atime=%ld\n",
+ (long)dentry->d_inode->i_size,
+ dentry->d_inode->i_flags, dentry->d_inode->i_atime.tv_sec);
+
+ status = generic_file_aio_read(iocb, iov, nr_segs, pos);
+out:
+ return status;
+}
+
+static int
+smb_file_mmap(struct file * file, struct vm_area_struct * vma)
+{
+ struct dentry * dentry = file->f_path.dentry;
+ int status;
+
+ VERBOSE("file %s/%s, address %lu - %lu\n",
+ DENTRY_PATH(dentry), vma->vm_start, vma->vm_end);
+
+ status = smb_revalidate_inode(dentry);
+ if (status) {
+ PARANOIA("%s/%s validation failed, error=%d\n",
+ DENTRY_PATH(dentry), status);
+ goto out;
+ }
+ status = generic_file_mmap(file, vma);
+out:
+ return status;
+}
+
+static ssize_t
+smb_file_splice_read(struct file *file, loff_t *ppos,
+ struct pipe_inode_info *pipe, size_t count,
+ unsigned int flags)
+{
+ struct dentry *dentry = file->f_path.dentry;
+ ssize_t status;
+
+ VERBOSE("file %s/%s, pos=%Ld, count=%lu\n",
+ DENTRY_PATH(dentry), *ppos, count);
+
+ status = smb_revalidate_inode(dentry);
+ if (status) {
+ PARANOIA("%s/%s validation failed, error=%Zd\n",
+ DENTRY_PATH(dentry), status);
+ goto out;
+ }
+ status = generic_file_splice_read(file, ppos, pipe, count, flags);
+out:
+ return status;
+}
+
+/*
+ * This does the "real" work of the write. The generic routine has
+ * allocated the page, locked it, done all the page alignment stuff
+ * calculations etc. Now we should just copy the data from user
+ * space and write it back to the real medium..
+ *
+ * If the writer ends up delaying the write, the writer needs to
+ * increment the page use counts until he is done with the page.
+ */
+static int smb_write_begin(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata)
+{
+ pgoff_t index = pos >> PAGE_CACHE_SHIFT;
+ *pagep = grab_cache_page_write_begin(mapping, index, flags);
+ if (!*pagep)
+ return -ENOMEM;
+ return 0;
+}
+
+static int smb_write_end(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
+{
+ int status;
+ unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
+
+ lock_kernel();
+ status = smb_updatepage(file, page, offset, copied);
+ unlock_kernel();
+
+ if (!status) {
+ if (!PageUptodate(page) && copied == PAGE_CACHE_SIZE)
+ SetPageUptodate(page);
+ status = copied;
+ }
+
+ unlock_page(page);
+ page_cache_release(page);
+
+ return status;
+}
+
+const struct address_space_operations smb_file_aops = {
+ .readpage = smb_readpage,
+ .writepage = smb_writepage,
+ .write_begin = smb_write_begin,
+ .write_end = smb_write_end,
+};
+
+/*
+ * Write to a file (through the page cache).
+ */
+static ssize_t
+smb_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos)
+{
+ struct file * file = iocb->ki_filp;
+ struct dentry * dentry = file->f_path.dentry;
+ ssize_t result;
+
+ VERBOSE("file %s/%s, count=%lu@%lu\n",
+ DENTRY_PATH(dentry),
+ (unsigned long) iocb->ki_left, (unsigned long) pos);
+
+ result = smb_revalidate_inode(dentry);
+ if (result) {
+ PARANOIA("%s/%s validation failed, error=%Zd\n",
+ DENTRY_PATH(dentry), result);
+ goto out;
+ }
+
+ result = smb_open(dentry, SMB_O_WRONLY);
+ if (result)
+ goto out;
+
+ if (iocb->ki_left > 0) {
+ result = generic_file_aio_write(iocb, iov, nr_segs, pos);
+ VERBOSE("pos=%ld, size=%ld, mtime=%ld, atime=%ld\n",
+ (long) file->f_pos, (long) dentry->d_inode->i_size,
+ dentry->d_inode->i_mtime.tv_sec,
+ dentry->d_inode->i_atime.tv_sec);
+ }
+out:
+ return result;
+}
+
+static int
+smb_file_open(struct inode *inode, struct file * file)
+{
+ int result;
+ struct dentry *dentry = file->f_path.dentry;
+ int smb_mode = (file->f_mode & O_ACCMODE) - 1;
+
+ lock_kernel();
+ result = smb_open(dentry, smb_mode);
+ if (result)
+ goto out;
+ SMB_I(inode)->openers++;
+out:
+ unlock_kernel();
+ return result;
+}
+
+static int
+smb_file_release(struct inode *inode, struct file * file)
+{
+ lock_kernel();
+ if (!--SMB_I(inode)->openers) {
+ /* We must flush any dirty pages now as we won't be able to
+ write anything after close. mmap can trigger this.
+ "openers" should perhaps include mmap'ers ... */
+ filemap_write_and_wait(inode->i_mapping);
+ smb_close(inode);
+ }
+ unlock_kernel();
+ return 0;
+}
+
+/*
+ * Check whether the required access is compatible with
+ * an inode's permission. SMB doesn't recognize superuser
+ * privileges, so we need our own check for this.
+ */
+static int
+smb_file_permission(struct inode *inode, int mask)
+{
+ int mode = inode->i_mode;
+ int error = 0;
+
+ VERBOSE("mode=%x, mask=%x\n", mode, mask);
+
+ /* Look at user permissions */
+ mode >>= 6;
+ if (mask & ~mode & (MAY_READ | MAY_WRITE | MAY_EXEC))
+ error = -EACCES;
+ return error;
+}
+
+static loff_t smb_remote_llseek(struct file *file, loff_t offset, int origin)
+{
+ loff_t ret;
+ lock_kernel();
+ ret = generic_file_llseek_unlocked(file, offset, origin);
+ unlock_kernel();
+ return ret;
+}
+
+const struct file_operations smb_file_operations =
+{
+ .llseek = smb_remote_llseek,
+ .read = do_sync_read,
+ .aio_read = smb_file_aio_read,
+ .write = do_sync_write,
+ .aio_write = smb_file_aio_write,
+ .unlocked_ioctl = smb_ioctl,
+ .mmap = smb_file_mmap,
+ .open = smb_file_open,
+ .release = smb_file_release,
+ .fsync = smb_fsync,
+ .splice_read = smb_file_splice_read,
+};
+
+const struct inode_operations smb_file_inode_operations =
+{
+ .permission = smb_file_permission,
+ .getattr = smb_getattr,
+ .setattr = smb_notify_change,
+};
--- /dev/null
+/*
+ * getopt.c
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/net.h>
+
+#include "getopt.h"
+
+/**
+ * smb_getopt - option parser
+ * @caller: name of the caller, for error messages
+ * @options: the options string
+ * @opts: an array of &struct option entries controlling parser operations
+ * @optopt: output; will contain the current option
+ * @optarg: output; will contain the value (if one exists)
+ * @flag: output; may be NULL; should point to a long for or'ing flags
+ * @value: output; may be NULL; will be overwritten with the integer value
+ * of the current argument.
+ *
+ * Helper to parse options on the format used by mount ("a=b,c=d,e,f").
+ * Returns opts->val if a matching entry in the 'opts' array is found,
+ * 0 when no more tokens are found, -1 if an error is encountered.
+ */
+int smb_getopt(char *caller, char **options, struct option *opts,
+ char **optopt, char **optarg, unsigned long *flag,
+ unsigned long *value)
+{
+ char *token;
+ char *val;
+ int i;
+
+ do {
+ if ((token = strsep(options, ",")) == NULL)
+ return 0;
+ } while (*token == '\0');
+ *optopt = token;
+
+ *optarg = NULL;
+ if ((val = strchr (token, '=')) != NULL) {
+ *val++ = 0;
+ if (value)
+ *value = simple_strtoul(val, NULL, 0);
+ *optarg = val;
+ }
+
+ for (i = 0; opts[i].name != NULL; i++) {
+ if (!strcmp(opts[i].name, token)) {
+ if (!opts[i].flag && (!val || !*val)) {
+ printk("%s: the %s option requires an argument\n",
+ caller, token);
+ return -1;
+ }
+
+ if (flag && opts[i].flag)
+ *flag |= opts[i].flag;
+
+ return opts[i].val;
+ }
+ }
+ printk("%s: Unrecognized mount option %s\n", caller, token);
+ return -1;
+}
--- /dev/null
+#ifndef _LINUX_GETOPT_H
+#define _LINUX_GETOPT_H
+
+struct option {
+ const char *name;
+ unsigned long flag;
+ int val;
+};
+
+extern int smb_getopt(char *caller, char **options, struct option *opts,
+ char **optopt, char **optarg, unsigned long *flag,
+ unsigned long *value);
+
+#endif /* _LINUX_GETOPT_H */
--- /dev/null
+/*
+ * inode.c
+ *
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/dcache.h>
+#include <linux/smp_lock.h>
+#include <linux/nls.h>
+#include <linux/seq_file.h>
+#include <linux/mount.h>
+#include <linux/net.h>
+#include <linux/vfs.h>
+#include <linux/highuid.h>
+#include <linux/sched.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include "smb_fs.h"
+#include "smbno.h"
+#include "smb_mount.h"
+#include "smb_debug.h"
+#include "getopt.h"
+#include "proto.h"
+
+/* Always pick a default string */
+#ifdef CONFIG_SMB_NLS_REMOTE
+#define SMB_NLS_REMOTE CONFIG_SMB_NLS_REMOTE
+#else
+#define SMB_NLS_REMOTE ""
+#endif
+
+#define SMB_TTL_DEFAULT 1000
+
+static void smb_evict_inode(struct inode *);
+static void smb_put_super(struct super_block *);
+static int smb_statfs(struct dentry *, struct kstatfs *);
+static int smb_show_options(struct seq_file *, struct vfsmount *);
+
+static struct kmem_cache *smb_inode_cachep;
+
+static struct inode *smb_alloc_inode(struct super_block *sb)
+{
+ struct smb_inode_info *ei;
+ ei = (struct smb_inode_info *)kmem_cache_alloc(smb_inode_cachep, GFP_KERNEL);
+ if (!ei)
+ return NULL;
+ return &ei->vfs_inode;
+}
+
+static void smb_destroy_inode(struct inode *inode)
+{
+ kmem_cache_free(smb_inode_cachep, SMB_I(inode));
+}
+
+static void init_once(void *foo)
+{
+ struct smb_inode_info *ei = (struct smb_inode_info *) foo;
+
+ inode_init_once(&ei->vfs_inode);
+}
+
+static int init_inodecache(void)
+{
+ smb_inode_cachep = kmem_cache_create("smb_inode_cache",
+ sizeof(struct smb_inode_info),
+ 0, (SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
+ init_once);
+ if (smb_inode_cachep == NULL)
+ return -ENOMEM;
+ return 0;
+}
+
+static void destroy_inodecache(void)
+{
+ kmem_cache_destroy(smb_inode_cachep);
+}
+
+static int smb_remount(struct super_block *sb, int *flags, char *data)
+{
+ *flags |= MS_NODIRATIME;
+ return 0;
+}
+
+static const struct super_operations smb_sops =
+{
+ .alloc_inode = smb_alloc_inode,
+ .destroy_inode = smb_destroy_inode,
+ .drop_inode = generic_delete_inode,
+ .evict_inode = smb_evict_inode,
+ .put_super = smb_put_super,
+ .statfs = smb_statfs,
+ .show_options = smb_show_options,
+ .remount_fs = smb_remount,
+};
+
+
+/* We are always generating a new inode here */
+struct inode *
+smb_iget(struct super_block *sb, struct smb_fattr *fattr)
+{
+ struct smb_sb_info *server = SMB_SB(sb);
+ struct inode *result;
+
+ DEBUG1("smb_iget: %p\n", fattr);
+
+ result = new_inode(sb);
+ if (!result)
+ return result;
+ result->i_ino = fattr->f_ino;
+ SMB_I(result)->open = 0;
+ SMB_I(result)->fileid = 0;
+ SMB_I(result)->access = 0;
+ SMB_I(result)->flags = 0;
+ SMB_I(result)->closed = 0;
+ SMB_I(result)->openers = 0;
+ smb_set_inode_attr(result, fattr);
+ if (S_ISREG(result->i_mode)) {
+ result->i_op = &smb_file_inode_operations;
+ result->i_fop = &smb_file_operations;
+ result->i_data.a_ops = &smb_file_aops;
+ } else if (S_ISDIR(result->i_mode)) {
+ if (server->opt.capabilities & SMB_CAP_UNIX)
+ result->i_op = &smb_dir_inode_operations_unix;
+ else
+ result->i_op = &smb_dir_inode_operations;
+ result->i_fop = &smb_dir_operations;
+ } else if (S_ISLNK(result->i_mode)) {
+ result->i_op = &smb_link_inode_operations;
+ } else {
+ init_special_inode(result, result->i_mode, fattr->f_rdev);
+ }
+ insert_inode_hash(result);
+ return result;
+}
+
+/*
+ * Copy the inode data to a smb_fattr structure.
+ */
+void
+smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr)
+{
+ memset(fattr, 0, sizeof(struct smb_fattr));
+ fattr->f_mode = inode->i_mode;
+ fattr->f_nlink = inode->i_nlink;
+ fattr->f_ino = inode->i_ino;
+ fattr->f_uid = inode->i_uid;
+ fattr->f_gid = inode->i_gid;
+ fattr->f_size = inode->i_size;
+ fattr->f_mtime = inode->i_mtime;
+ fattr->f_ctime = inode->i_ctime;
+ fattr->f_atime = inode->i_atime;
+ fattr->f_blocks = inode->i_blocks;
+
+ fattr->attr = SMB_I(inode)->attr;
+ /*
+ * Keep the attributes in sync with the inode permissions.
+ */
+ if (fattr->f_mode & S_IWUSR)
+ fattr->attr &= ~aRONLY;
+ else
+ fattr->attr |= aRONLY;
+}
+
+/*
+ * Update the inode, possibly causing it to invalidate its pages if mtime/size
+ * is different from last time.
+ */
+void
+smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr)
+{
+ struct smb_inode_info *ei = SMB_I(inode);
+
+ /*
+ * A size change should have a different mtime, or same mtime
+ * but different size.
+ */
+ time_t last_time = inode->i_mtime.tv_sec;
+ loff_t last_sz = inode->i_size;
+
+ inode->i_mode = fattr->f_mode;
+ inode->i_nlink = fattr->f_nlink;
+ inode->i_uid = fattr->f_uid;
+ inode->i_gid = fattr->f_gid;
+ inode->i_ctime = fattr->f_ctime;
+ inode->i_blocks = fattr->f_blocks;
+ inode->i_size = fattr->f_size;
+ inode->i_mtime = fattr->f_mtime;
+ inode->i_atime = fattr->f_atime;
+ ei->attr = fattr->attr;
+
+ /*
+ * Update the "last time refreshed" field for revalidation.
+ */
+ ei->oldmtime = jiffies;
+
+ if (inode->i_mtime.tv_sec != last_time || inode->i_size != last_sz) {
+ VERBOSE("%ld changed, old=%ld, new=%ld, oz=%ld, nz=%ld\n",
+ inode->i_ino,
+ (long) last_time, (long) inode->i_mtime.tv_sec,
+ (long) last_sz, (long) inode->i_size);
+
+ if (!S_ISDIR(inode->i_mode))
+ invalidate_remote_inode(inode);
+ }
+}
+
+/*
+ * This is called if the connection has gone bad ...
+ * try to kill off all the current inodes.
+ */
+void
+smb_invalidate_inodes(struct smb_sb_info *server)
+{
+ VERBOSE("\n");
+ shrink_dcache_sb(SB_of(server));
+ invalidate_inodes(SB_of(server));
+}
+
+/*
+ * This is called to update the inode attributes after
+ * we've made changes to a file or directory.
+ */
+static int
+smb_refresh_inode(struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ int error;
+ struct smb_fattr fattr;
+
+ error = smb_proc_getattr(dentry, &fattr);
+ if (!error) {
+ smb_renew_times(dentry);
+ /*
+ * Check whether the type part of the mode changed,
+ * and don't update the attributes if it did.
+ *
+ * And don't dick with the root inode
+ */
+ if (inode->i_ino == 2)
+ return error;
+ if (S_ISLNK(inode->i_mode))
+ return error; /* VFS will deal with it */
+
+ if ((inode->i_mode & S_IFMT) == (fattr.f_mode & S_IFMT)) {
+ smb_set_inode_attr(inode, &fattr);
+ } else {
+ /*
+ * Big trouble! The inode has become a new object,
+ * so any operations attempted on it are invalid.
+ *
+ * To limit damage, mark the inode as bad so that
+ * subsequent lookup validations will fail.
+ */
+ PARANOIA("%s/%s changed mode, %07o to %07o\n",
+ DENTRY_PATH(dentry),
+ inode->i_mode, fattr.f_mode);
+
+ fattr.f_mode = inode->i_mode; /* save mode */
+ make_bad_inode(inode);
+ inode->i_mode = fattr.f_mode; /* restore mode */
+ /*
+ * No need to worry about unhashing the dentry: the
+ * lookup validation will see that the inode is bad.
+ * But we do want to invalidate the caches ...
+ */
+ if (!S_ISDIR(inode->i_mode))
+ invalidate_remote_inode(inode);
+ else
+ smb_invalid_dir_cache(inode);
+ error = -EIO;
+ }
+ }
+ return error;
+}
+
+/*
+ * This is called when we want to check whether the inode
+ * has changed on the server. If it has changed, we must
+ * invalidate our local caches.
+ */
+int
+smb_revalidate_inode(struct dentry *dentry)
+{
+ struct smb_sb_info *s = server_from_dentry(dentry);
+ struct inode *inode = dentry->d_inode;
+ int error = 0;
+
+ DEBUG1("smb_revalidate_inode\n");
+ lock_kernel();
+
+ /*
+ * Check whether we've recently refreshed the inode.
+ */
+ if (time_before(jiffies, SMB_I(inode)->oldmtime + SMB_MAX_AGE(s))) {
+ VERBOSE("up-to-date, ino=%ld, jiffies=%lu, oldtime=%lu\n",
+ inode->i_ino, jiffies, SMB_I(inode)->oldmtime);
+ goto out;
+ }
+
+ error = smb_refresh_inode(dentry);
+out:
+ unlock_kernel();
+ return error;
+}
+
+/*
+ * This routine is called when i_nlink == 0 and i_count goes to 0.
+ * All blocking cleanup operations need to go here to avoid races.
+ */
+static void
+smb_evict_inode(struct inode *ino)
+{
+ DEBUG1("ino=%ld\n", ino->i_ino);
+ truncate_inode_pages(&ino->i_data, 0);
+ end_writeback(ino);
+ lock_kernel();
+ if (smb_close(ino))
+ PARANOIA("could not close inode %ld\n", ino->i_ino);
+ unlock_kernel();
+}
+
+static struct option opts[] = {
+ { "version", 0, 'v' },
+ { "win95", SMB_MOUNT_WIN95, 1 },
+ { "oldattr", SMB_MOUNT_OLDATTR, 1 },
+ { "dirattr", SMB_MOUNT_DIRATTR, 1 },
+ { "case", SMB_MOUNT_CASE, 1 },
+ { "uid", 0, 'u' },
+ { "gid", 0, 'g' },
+ { "file_mode", 0, 'f' },
+ { "dir_mode", 0, 'd' },
+ { "iocharset", 0, 'i' },
+ { "codepage", 0, 'c' },
+ { "ttl", 0, 't' },
+ { NULL, 0, 0}
+};
+
+static int
+parse_options(struct smb_mount_data_kernel *mnt, char *options)
+{
+ int c;
+ unsigned long flags;
+ unsigned long value;
+ char *optarg;
+ char *optopt;
+
+ flags = 0;
+ while ( (c = smb_getopt("smbfs", &options, opts,
+ &optopt, &optarg, &flags, &value)) > 0) {
+
+ VERBOSE("'%s' -> '%s'\n", optopt, optarg ? optarg : "<none>");
+ switch (c) {
+ case 1:
+ /* got a "flag" option */
+ break;
+ case 'v':
+ if (value != SMB_MOUNT_VERSION) {
+ printk ("smbfs: Bad mount version %ld, expected %d\n",
+ value, SMB_MOUNT_VERSION);
+ return 0;
+ }
+ mnt->version = value;
+ break;
+ case 'u':
+ mnt->uid = value;
+ flags |= SMB_MOUNT_UID;
+ break;
+ case 'g':
+ mnt->gid = value;
+ flags |= SMB_MOUNT_GID;
+ break;
+ case 'f':
+ mnt->file_mode = (value & S_IRWXUGO) | S_IFREG;
+ flags |= SMB_MOUNT_FMODE;
+ break;
+ case 'd':
+ mnt->dir_mode = (value & S_IRWXUGO) | S_IFDIR;
+ flags |= SMB_MOUNT_DMODE;
+ break;
+ case 'i':
+ strlcpy(mnt->codepage.local_name, optarg,
+ SMB_NLS_MAXNAMELEN);
+ break;
+ case 'c':
+ strlcpy(mnt->codepage.remote_name, optarg,
+ SMB_NLS_MAXNAMELEN);
+ break;
+ case 't':
+ mnt->ttl = value;
+ break;
+ default:
+ printk ("smbfs: Unrecognized mount option %s\n",
+ optopt);
+ return -1;
+ }
+ }
+ mnt->flags = flags;
+ return c;
+}
+
+/*
+ * smb_show_options() is for displaying mount options in /proc/mounts.
+ * It tries to avoid showing settings that were not changed from their
+ * defaults.
+ */
+static int
+smb_show_options(struct seq_file *s, struct vfsmount *m)
+{
+ struct smb_mount_data_kernel *mnt = SMB_SB(m->mnt_sb)->mnt;
+ int i;
+
+ for (i = 0; opts[i].name != NULL; i++)
+ if (mnt->flags & opts[i].flag)
+ seq_printf(s, ",%s", opts[i].name);
+
+ if (mnt->flags & SMB_MOUNT_UID)
+ seq_printf(s, ",uid=%d", mnt->uid);
+ if (mnt->flags & SMB_MOUNT_GID)
+ seq_printf(s, ",gid=%d", mnt->gid);
+ if (mnt->mounted_uid != 0)
+ seq_printf(s, ",mounted_uid=%d", mnt->mounted_uid);
+
+ /*
+ * Defaults for file_mode and dir_mode are unknown to us; they
+ * depend on the current umask of the user doing the mount.
+ */
+ if (mnt->flags & SMB_MOUNT_FMODE)
+ seq_printf(s, ",file_mode=%04o", mnt->file_mode & S_IRWXUGO);
+ if (mnt->flags & SMB_MOUNT_DMODE)
+ seq_printf(s, ",dir_mode=%04o", mnt->dir_mode & S_IRWXUGO);
+
+ if (strcmp(mnt->codepage.local_name, CONFIG_NLS_DEFAULT))
+ seq_printf(s, ",iocharset=%s", mnt->codepage.local_name);
+ if (strcmp(mnt->codepage.remote_name, SMB_NLS_REMOTE))
+ seq_printf(s, ",codepage=%s", mnt->codepage.remote_name);
+
+ if (mnt->ttl != SMB_TTL_DEFAULT)
+ seq_printf(s, ",ttl=%d", mnt->ttl);
+
+ return 0;
+}
+
+static void
+smb_unload_nls(struct smb_sb_info *server)
+{
+ unload_nls(server->remote_nls);
+ unload_nls(server->local_nls);
+}
+
+static void
+smb_put_super(struct super_block *sb)
+{
+ struct smb_sb_info *server = SMB_SB(sb);
+
+ lock_kernel();
+
+ smb_lock_server(server);
+ server->state = CONN_INVALID;
+ smbiod_unregister_server(server);
+
+ smb_close_socket(server);
+
+ if (server->conn_pid)
+ kill_pid(server->conn_pid, SIGTERM, 1);
+
+ bdi_destroy(&server->bdi);
+ kfree(server->ops);
+ smb_unload_nls(server);
+ sb->s_fs_info = NULL;
+ smb_unlock_server(server);
+ put_pid(server->conn_pid);
+ kfree(server);
+
+ unlock_kernel();
+}
+
+static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
+{
+ struct smb_sb_info *server;
+ struct smb_mount_data_kernel *mnt;
+ struct smb_mount_data *oldmnt;
+ struct inode *root_inode;
+ struct smb_fattr root;
+ int ver;
+ void *mem;
+ static int warn_count;
+
+ if (warn_count < 5) {
+ warn_count++;
+ printk(KERN_EMERG "smbfs is deprecated and will be removed"
+ " from the 2.6.37 kernel. Please migrate to cifs\n");
+ }
+
+ if (!raw_data)
+ goto out_no_data;
+
+ oldmnt = (struct smb_mount_data *) raw_data;
+ ver = oldmnt->version;
+ if (ver != SMB_MOUNT_OLDVERSION && cpu_to_be32(ver) != SMB_MOUNT_ASCII)
+ goto out_wrong_data;
+
+ sb->s_flags |= MS_NODIRATIME;
+ sb->s_blocksize = 1024; /* Eh... Is this correct? */
+ sb->s_blocksize_bits = 10;
+ sb->s_magic = SMB_SUPER_MAGIC;
+ sb->s_op = &smb_sops;
+ sb->s_time_gran = 100;
+
+ server = kzalloc(sizeof(struct smb_sb_info), GFP_KERNEL);
+ if (!server)
+ goto out_no_server;
+ sb->s_fs_info = server;
+
+ if (bdi_setup_and_register(&server->bdi, "smbfs", BDI_CAP_MAP_COPY))
+ goto out_bdi;
+
+ sb->s_bdi = &server->bdi;
+
+ server->super_block = sb;
+ server->mnt = NULL;
+ server->sock_file = NULL;
+ init_waitqueue_head(&server->conn_wq);
+ init_MUTEX(&server->sem);
+ INIT_LIST_HEAD(&server->entry);
+ INIT_LIST_HEAD(&server->xmitq);
+ INIT_LIST_HEAD(&server->recvq);
+ server->conn_error = 0;
+ server->conn_pid = NULL;
+ server->state = CONN_INVALID; /* no connection yet */
+ server->generation = 0;
+
+ /* Allocate the global temp buffer and some superblock helper structs */
+ /* FIXME: move these to the smb_sb_info struct */
+ VERBOSE("alloc chunk = %lu\n", sizeof(struct smb_ops) +
+ sizeof(struct smb_mount_data_kernel));
+ mem = kmalloc(sizeof(struct smb_ops) +
+ sizeof(struct smb_mount_data_kernel), GFP_KERNEL);
+ if (!mem)
+ goto out_no_mem;
+
+ server->ops = mem;
+ smb_install_null_ops(server->ops);
+ server->mnt = mem + sizeof(struct smb_ops);
+
+ /* Setup NLS stuff */
+ server->remote_nls = NULL;
+ server->local_nls = NULL;
+
+ mnt = server->mnt;
+
+ memset(mnt, 0, sizeof(struct smb_mount_data_kernel));
+ strlcpy(mnt->codepage.local_name, CONFIG_NLS_DEFAULT,
+ SMB_NLS_MAXNAMELEN);
+ strlcpy(mnt->codepage.remote_name, SMB_NLS_REMOTE,
+ SMB_NLS_MAXNAMELEN);
+
+ mnt->ttl = SMB_TTL_DEFAULT;
+ if (ver == SMB_MOUNT_OLDVERSION) {
+ mnt->version = oldmnt->version;
+
+ SET_UID(mnt->uid, oldmnt->uid);
+ SET_GID(mnt->gid, oldmnt->gid);
+
+ mnt->file_mode = (oldmnt->file_mode & S_IRWXUGO) | S_IFREG;
+ mnt->dir_mode = (oldmnt->dir_mode & S_IRWXUGO) | S_IFDIR;
+
+ mnt->flags = (oldmnt->file_mode >> 9) | SMB_MOUNT_UID |
+ SMB_MOUNT_GID | SMB_MOUNT_FMODE | SMB_MOUNT_DMODE;
+ } else {
+ mnt->file_mode = S_IRWXU | S_IRGRP | S_IXGRP |
+ S_IROTH | S_IXOTH | S_IFREG;
+ mnt->dir_mode = S_IRWXU | S_IRGRP | S_IXGRP |
+ S_IROTH | S_IXOTH | S_IFDIR;
+ if (parse_options(mnt, raw_data))
+ goto out_bad_option;
+ }
+ mnt->mounted_uid = current_uid();
+ smb_setcodepage(server, &mnt->codepage);
+
+ /*
+ * Display the enabled options
+ * Note: smb_proc_getattr uses these in 2.4 (but was changed in 2.2)
+ */
+ if (mnt->flags & SMB_MOUNT_OLDATTR)
+ printk("SMBFS: Using core getattr (Win 95 speedup)\n");
+ else if (mnt->flags & SMB_MOUNT_DIRATTR)
+ printk("SMBFS: Using dir ff getattr\n");
+
+ if (smbiod_register_server(server) < 0) {
+ printk(KERN_ERR "smbfs: failed to start smbiod\n");
+ goto out_no_smbiod;
+ }
+
+ /*
+ * Keep the super block locked while we get the root inode.
+ */
+ smb_init_root_dirent(server, &root, sb);
+ root_inode = smb_iget(sb, &root);
+ if (!root_inode)
+ goto out_no_root;
+
+ sb->s_root = d_alloc_root(root_inode);
+ if (!sb->s_root)
+ goto out_no_root;
+
+ smb_new_dentry(sb->s_root);
+
+ return 0;
+
+out_no_root:
+ iput(root_inode);
+out_no_smbiod:
+ smb_unload_nls(server);
+out_bad_option:
+ kfree(mem);
+out_no_mem:
+ bdi_destroy(&server->bdi);
+out_bdi:
+ if (!server->mnt)
+ printk(KERN_ERR "smb_fill_super: allocation failure\n");
+ sb->s_fs_info = NULL;
+ kfree(server);
+ goto out_fail;
+out_wrong_data:
+ printk(KERN_ERR "smbfs: mount_data version %d is not supported\n", ver);
+ goto out_fail;
+out_no_data:
+ printk(KERN_ERR "smb_fill_super: missing data argument\n");
+out_fail:
+ return -EINVAL;
+out_no_server:
+ printk(KERN_ERR "smb_fill_super: cannot allocate struct smb_sb_info\n");
+ return -ENOMEM;
+}
+
+static int
+smb_statfs(struct dentry *dentry, struct kstatfs *buf)
+{
+ int result;
+
+ lock_kernel();
+
+ result = smb_proc_dskattr(dentry, buf);
+
+ unlock_kernel();
+
+ buf->f_type = SMB_SUPER_MAGIC;
+ buf->f_namelen = SMB_MAXPATHLEN;
+ return result;
+}
+
+int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+{
+ int err = smb_revalidate_inode(dentry);
+ if (!err)
+ generic_fillattr(dentry->d_inode, stat);
+ return err;
+}
+
+int
+smb_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+ struct inode *inode = dentry->d_inode;
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ unsigned int mask = (S_IFREG | S_IFDIR | S_IRWXUGO);
+ int error, changed, refresh = 0;
+ struct smb_fattr fattr;
+
+ lock_kernel();
+
+ error = smb_revalidate_inode(dentry);
+ if (error)
+ goto out;
+
+ if ((error = inode_change_ok(inode, attr)) < 0)
+ goto out;
+
+ error = -EPERM;
+ if ((attr->ia_valid & ATTR_UID) && (attr->ia_uid != server->mnt->uid))
+ goto out;
+
+ if ((attr->ia_valid & ATTR_GID) && (attr->ia_uid != server->mnt->gid))
+ goto out;
+
+ if ((attr->ia_valid & ATTR_MODE) && (attr->ia_mode & ~mask))
+ goto out;
+
+ if ((attr->ia_valid & ATTR_SIZE) != 0) {
+ VERBOSE("changing %s/%s, old size=%ld, new size=%ld\n",
+ DENTRY_PATH(dentry),
+ (long) inode->i_size, (long) attr->ia_size);
+
+ filemap_write_and_wait(inode->i_mapping);
+
+ error = smb_open(dentry, O_WRONLY);
+ if (error)
+ goto out;
+ error = server->ops->truncate(inode, attr->ia_size);
+ if (error)
+ goto out;
+ truncate_setsize(inode, attr->ia_size);
+ refresh = 1;
+ }
+
+ if (server->opt.capabilities & SMB_CAP_UNIX) {
+ /* For now we don't want to set the size with setattr_unix */
+ attr->ia_valid &= ~ATTR_SIZE;
+ /* FIXME: only call if we actually want to set something? */
+ error = smb_proc_setattr_unix(dentry, attr, 0, 0);
+ if (!error)
+ refresh = 1;
+
+ goto out;
+ }
+
+ /*
+ * Initialize the fattr and check for changed fields.
+ * Note: CTIME under SMB is creation time rather than
+ * change time, so we don't attempt to change it.
+ */
+ smb_get_inode_attr(inode, &fattr);
+
+ changed = 0;
+ if ((attr->ia_valid & ATTR_MTIME) != 0) {
+ fattr.f_mtime = attr->ia_mtime;
+ changed = 1;
+ }
+ if ((attr->ia_valid & ATTR_ATIME) != 0) {
+ fattr.f_atime = attr->ia_atime;
+ /* Earlier protocols don't have an access time */
+ if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2)
+ changed = 1;
+ }
+ if (changed) {
+ error = smb_proc_settime(dentry, &fattr);
+ if (error)
+ goto out;
+ refresh = 1;
+ }
+
+ /*
+ * Check for mode changes ... we're extremely limited in
+ * what can be set for SMB servers: just the read-only bit.
+ */
+ if ((attr->ia_valid & ATTR_MODE) != 0) {
+ VERBOSE("%s/%s mode change, old=%x, new=%x\n",
+ DENTRY_PATH(dentry), fattr.f_mode, attr->ia_mode);
+ changed = 0;
+ if (attr->ia_mode & S_IWUSR) {
+ if (fattr.attr & aRONLY) {
+ fattr.attr &= ~aRONLY;
+ changed = 1;
+ }
+ } else {
+ if (!(fattr.attr & aRONLY)) {
+ fattr.attr |= aRONLY;
+ changed = 1;
+ }
+ }
+ if (changed) {
+ error = smb_proc_setattr(dentry, &fattr);
+ if (error)
+ goto out;
+ refresh = 1;
+ }
+ }
+ error = 0;
+
+out:
+ if (refresh)
+ smb_refresh_inode(dentry);
+ unlock_kernel();
+ return error;
+}
+
+static int smb_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+{
+ return get_sb_nodev(fs_type, flags, data, smb_fill_super, mnt);
+}
+
+static struct file_system_type smb_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "smbfs",
+ .get_sb = smb_get_sb,
+ .kill_sb = kill_anon_super,
+ .fs_flags = FS_BINARY_MOUNTDATA,
+};
+
+static int __init init_smb_fs(void)
+{
+ int err;
+ DEBUG1("registering ...\n");
+
+ err = init_inodecache();
+ if (err)
+ goto out_inode;
+ err = smb_init_request_cache();
+ if (err)
+ goto out_request;
+ err = register_filesystem(&smb_fs_type);
+ if (err)
+ goto out;
+ return 0;
+out:
+ smb_destroy_request_cache();
+out_request:
+ destroy_inodecache();
+out_inode:
+ return err;
+}
+
+static void __exit exit_smb_fs(void)
+{
+ DEBUG1("unregistering ...\n");
+ unregister_filesystem(&smb_fs_type);
+ smb_destroy_request_cache();
+ destroy_inodecache();
+}
+
+module_init(init_smb_fs)
+module_exit(exit_smb_fs)
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * ioctl.c
+ *
+ * Copyright (C) 1995, 1996 by Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ioctl.h>
+#include <linux/time.h>
+#include <linux/mm.h>
+#include <linux/highuid.h>
+#include <linux/smp_lock.h>
+#include <linux/net.h>
+
+#include <asm/uaccess.h>
+
+#include "smb_fs.h"
+#include "smb_mount.h"
+#include "proto.h"
+
+long
+smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
+ struct smb_conn_opt opt;
+ int result = -EINVAL;
+
+ lock_kernel();
+ switch (cmd) {
+ uid16_t uid16;
+ uid_t uid32;
+ case SMB_IOC_GETMOUNTUID:
+ SET_UID(uid16, server->mnt->mounted_uid);
+ result = put_user(uid16, (uid16_t __user *) arg);
+ break;
+ case SMB_IOC_GETMOUNTUID32:
+ SET_UID(uid32, server->mnt->mounted_uid);
+ result = put_user(uid32, (uid_t __user *) arg);
+ break;
+
+ case SMB_IOC_NEWCONN:
+ /* arg is smb_conn_opt, or NULL if no connection was made */
+ if (!arg) {
+ result = 0;
+ smb_lock_server(server);
+ server->state = CONN_RETRIED;
+ printk(KERN_ERR "Connection attempt failed! [%d]\n",
+ server->conn_error);
+ smbiod_flush(server);
+ smb_unlock_server(server);
+ break;
+ }
+
+ result = -EFAULT;
+ if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
+ result = smb_newconn(server, &opt);
+ break;
+ default:
+ break;
+ }
+ unlock_kernel();
+
+ return result;
+}
--- /dev/null
+/*
+ * proc.c
+ *
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/dcache.h>
+#include <linux/nls.h>
+#include <linux/smp_lock.h>
+#include <linux/net.h>
+#include <linux/vfs.h>
+#include <net/sock.h>
+
+#include <asm/string.h>
+#include <asm/div64.h>
+
+#include "smb_fs.h"
+#include "smbno.h"
+#include "smb_mount.h"
+#include "smb_debug.h"
+#include "proto.h"
+#include "request.h"
+
+
+/* Features. Undefine if they cause problems, this should perhaps be a
+ config option. */
+#define SMBFS_POSIX_UNLINK 1
+
+/* Allow smb_retry to be interrupted. */
+#define SMB_RETRY_INTR
+
+#define SMB_VWV(packet) ((packet) + SMB_HEADER_LEN)
+#define SMB_CMD(packet) (*(packet+8))
+#define SMB_WCT(packet) (*(packet+SMB_HEADER_LEN - 1))
+
+#define SMB_DIRINFO_SIZE 43
+#define SMB_STATUS_SIZE 21
+
+#define SMB_ST_BLKSIZE (PAGE_SIZE)
+#define SMB_ST_BLKSHIFT (PAGE_SHIFT)
+
+static struct smb_ops smb_ops_core;
+static struct smb_ops smb_ops_os2;
+static struct smb_ops smb_ops_win95;
+static struct smb_ops smb_ops_winNT;
+static struct smb_ops smb_ops_unix;
+static struct smb_ops smb_ops_null;
+
+static void
+smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+static void
+smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+static int
+smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *fattr);
+static int
+smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
+ struct smb_fattr *fattr);
+static int
+smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
+ u16 attr);
+static int
+smb_proc_setattr_ext(struct smb_sb_info *server,
+ struct inode *inode, struct smb_fattr *fattr);
+static int
+smb_proc_query_cifsunix(struct smb_sb_info *server);
+static void
+install_ops(struct smb_ops *dst, struct smb_ops *src);
+
+
+static void
+str_upper(char *name, int len)
+{
+ while (len--)
+ {
+ if (*name >= 'a' && *name <= 'z')
+ *name -= ('a' - 'A');
+ name++;
+ }
+}
+
+#if 0
+static void
+str_lower(char *name, int len)
+{
+ while (len--)
+ {
+ if (*name >= 'A' && *name <= 'Z')
+ *name += ('a' - 'A');
+ name++;
+ }
+}
+#endif
+
+/* reverse a string inline. This is used by the dircache walking routines */
+static void reverse_string(char *buf, int len)
+{
+ char c;
+ char *end = buf+len-1;
+
+ while(buf < end) {
+ c = *buf;
+ *(buf++) = *end;
+ *(end--) = c;
+ }
+}
+
+/* no conversion, just a wrapper for memcpy. */
+static int convert_memcpy(unsigned char *output, int olen,
+ const unsigned char *input, int ilen,
+ struct nls_table *nls_from,
+ struct nls_table *nls_to)
+{
+ if (olen < ilen)
+ return -ENAMETOOLONG;
+ memcpy(output, input, ilen);
+ return ilen;
+}
+
+static inline int write_char(unsigned char ch, char *output, int olen)
+{
+ if (olen < 4)
+ return -ENAMETOOLONG;
+ sprintf(output, ":x%02x", ch);
+ return 4;
+}
+
+static inline int write_unichar(wchar_t ch, char *output, int olen)
+{
+ if (olen < 5)
+ return -ENAMETOOLONG;
+ sprintf(output, ":%04x", ch);
+ return 5;
+}
+
+/* convert from one "codepage" to another (possibly being utf8). */
+static int convert_cp(unsigned char *output, int olen,
+ const unsigned char *input, int ilen,
+ struct nls_table *nls_from,
+ struct nls_table *nls_to)
+{
+ int len = 0;
+ int n;
+ wchar_t ch;
+
+ while (ilen > 0) {
+ /* convert by changing to unicode and back to the new cp */
+ n = nls_from->char2uni(input, ilen, &ch);
+ if (n == -EINVAL) {
+ ilen--;
+ n = write_char(*input++, output, olen);
+ if (n < 0)
+ goto fail;
+ output += n;
+ olen -= n;
+ len += n;
+ continue;
+ } else if (n < 0)
+ goto fail;
+ input += n;
+ ilen -= n;
+
+ n = nls_to->uni2char(ch, output, olen);
+ if (n == -EINVAL)
+ n = write_unichar(ch, output, olen);
+ if (n < 0)
+ goto fail;
+ output += n;
+ olen -= n;
+
+ len += n;
+ }
+ return len;
+fail:
+ return n;
+}
+
+/* ----------------------------------------------------------- */
+
+/*
+ * nls_unicode
+ *
+ * This encodes/decodes little endian unicode format
+ */
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+ if (boundlen < 2)
+ return -EINVAL;
+ *out++ = uni & 0xff;
+ *out++ = uni >> 8;
+ return 2;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+ if (boundlen < 2)
+ return -EINVAL;
+ *uni = (rawstring[1] << 8) | rawstring[0];
+ return 2;
+}
+
+static struct nls_table unicode_table = {
+ .charset = "unicode",
+ .uni2char = uni2char,
+ .char2uni = char2uni,
+};
+
+/* ----------------------------------------------------------- */
+
+static int setcodepage(struct nls_table **p, char *name)
+{
+ struct nls_table *nls;
+
+ if (!name || !*name) {
+ nls = NULL;
+ } else if ( (nls = load_nls(name)) == NULL) {
+ printk (KERN_ERR "smbfs: failed to load nls '%s'\n", name);
+ return -EINVAL;
+ }
+
+ /* if already set, unload the previous one. */
+ if (*p && *p != &unicode_table)
+ unload_nls(*p);
+ *p = nls;
+
+ return 0;
+}
+
+/* Handles all changes to codepage settings. */
+int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp)
+{
+ int n = 0;
+
+ smb_lock_server(server);
+
+ /* Don't load any nls_* at all, if no remote is requested */
+ if (!*cp->remote_name)
+ goto out;
+
+ /* local */
+ n = setcodepage(&server->local_nls, cp->local_name);
+ if (n != 0)
+ goto out;
+
+ /* remote */
+ if (!strcmp(cp->remote_name, "unicode")) {
+ server->remote_nls = &unicode_table;
+ } else {
+ n = setcodepage(&server->remote_nls, cp->remote_name);
+ if (n != 0)
+ setcodepage(&server->local_nls, NULL);
+ }
+
+out:
+ if (server->local_nls != NULL && server->remote_nls != NULL)
+ server->ops->convert = convert_cp;
+ else
+ server->ops->convert = convert_memcpy;
+
+ smb_unlock_server(server);
+ return n;
+}
+
+
+/*****************************************************************************/
+/* */
+/* Encoding/Decoding section */
+/* */
+/*****************************************************************************/
+
+static __u8 *
+smb_encode_smb_length(__u8 * p, __u32 len)
+{
+ *p = 0;
+ *(p+1) = 0;
+ *(p+2) = (len & 0xFF00) >> 8;
+ *(p+3) = (len & 0xFF);
+ if (len > 0xFFFF)
+ {
+ *(p+1) = 1;
+ }
+ return p + 4;
+}
+
+/*
+ * smb_build_path: build the path to entry and name storing it in buf.
+ * The path returned will have the trailing '\0'.
+ */
+static int smb_build_path(struct smb_sb_info *server, unsigned char *buf,
+ int maxlen,
+ struct dentry *entry, struct qstr *name)
+{
+ unsigned char *path = buf;
+ int len;
+ int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE) != 0;
+
+ if (maxlen < (2<<unicode))
+ return -ENAMETOOLONG;
+
+ if (maxlen > SMB_MAXPATHLEN + 1)
+ maxlen = SMB_MAXPATHLEN + 1;
+
+ if (entry == NULL)
+ goto test_name_and_out;
+
+ /*
+ * If IS_ROOT, we have to do no walking at all.
+ */
+ if (IS_ROOT(entry) && !name) {
+ *path++ = '\\';
+ if (unicode) *path++ = '\0';
+ *path++ = '\0';
+ if (unicode) *path++ = '\0';
+ return path-buf;
+ }
+
+ /*
+ * Build the path string walking the tree backward from end to ROOT
+ * and store it in reversed order [see reverse_string()]
+ */
+ dget(entry);
+ spin_lock(&entry->d_lock);
+ while (!IS_ROOT(entry)) {
+ struct dentry *parent;
+
+ if (maxlen < (3<<unicode)) {
+ spin_unlock(&entry->d_lock);
+ dput(entry);
+ return -ENAMETOOLONG;
+ }
+
+ len = server->ops->convert(path, maxlen-2,
+ entry->d_name.name, entry->d_name.len,
+ server->local_nls, server->remote_nls);
+ if (len < 0) {
+ spin_unlock(&entry->d_lock);
+ dput(entry);
+ return len;
+ }
+ reverse_string(path, len);
+ path += len;
+ if (unicode) {
+ /* Note: reverse order */
+ *path++ = '\0';
+ maxlen--;
+ }
+ *path++ = '\\';
+ maxlen -= len+1;
+
+ parent = entry->d_parent;
+ dget(parent);
+ spin_unlock(&entry->d_lock);
+ dput(entry);
+ entry = parent;
+ spin_lock(&entry->d_lock);
+ }
+ spin_unlock(&entry->d_lock);
+ dput(entry);
+ reverse_string(buf, path-buf);
+
+ /* maxlen has space for at least one char */
+test_name_and_out:
+ if (name) {
+ if (maxlen < (3<<unicode))
+ return -ENAMETOOLONG;
+ *path++ = '\\';
+ if (unicode) {
+ *path++ = '\0';
+ maxlen--;
+ }
+ len = server->ops->convert(path, maxlen-2,
+ name->name, name->len,
+ server->local_nls, server->remote_nls);
+ if (len < 0)
+ return len;
+ path += len;
+ maxlen -= len+1;
+ }
+ /* maxlen has space for at least one char */
+ *path++ = '\0';
+ if (unicode) *path++ = '\0';
+ return path-buf;
+}
+
+static int smb_encode_path(struct smb_sb_info *server, char *buf, int maxlen,
+ struct dentry *dir, struct qstr *name)
+{
+ int result;
+
+ result = smb_build_path(server, buf, maxlen, dir, name);
+ if (result < 0)
+ goto out;
+ if (server->opt.protocol <= SMB_PROTOCOL_COREPLUS)
+ str_upper(buf, result);
+out:
+ return result;
+}
+
+/* encode_path for non-trans2 request SMBs */
+static int smb_simple_encode_path(struct smb_request *req, char **p,
+ struct dentry * entry, struct qstr * name)
+{
+ struct smb_sb_info *server = req->rq_server;
+ char *s = *p;
+ int res;
+ int maxlen = ((char *)req->rq_buffer + req->rq_bufsize) - s;
+ int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE);
+
+ if (!maxlen)
+ return -ENAMETOOLONG;
+ *s++ = 4; /* ASCII data format */
+
+ /*
+ * SMB Unicode strings must be 16bit aligned relative the start of the
+ * packet. If they are not they must be padded with 0.
+ */
+ if (unicode) {
+ int align = s - (char *)req->rq_buffer;
+ if (!(align & 1)) {
+ *s++ = '\0';
+ maxlen--;
+ }
+ }
+
+ res = smb_encode_path(server, s, maxlen-1, entry, name);
+ if (res < 0)
+ return res;
+ *p = s + res;
+ return 0;
+}
+
+/* The following are taken directly from msdos-fs */
+
+/* Linear day numbers of the respective 1sts in non-leap years. */
+
+static int day_n[] =
+{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0};
+ /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
+
+
+static time_t
+utc2local(struct smb_sb_info *server, time_t time)
+{
+ return time - server->opt.serverzone*60;
+}
+
+static time_t
+local2utc(struct smb_sb_info *server, time_t time)
+{
+ return time + server->opt.serverzone*60;
+}
+
+/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
+
+static time_t
+date_dos2unix(struct smb_sb_info *server, __u16 date, __u16 time)
+{
+ int month, year;
+ time_t secs;
+
+ /* first subtract and mask after that... Otherwise, if
+ date == 0, bad things happen */
+ month = ((date >> 5) - 1) & 15;
+ year = date >> 9;
+ secs = (time & 31) * 2 + 60 * ((time >> 5) & 63) + (time >> 11) * 3600 + 86400 *
+ ((date & 31) - 1 + day_n[month] + (year / 4) + year * 365 - ((year & 3) == 0 &&
+ month < 2 ? 1 : 0) + 3653);
+ /* days since 1.1.70 plus 80's leap day */
+ return local2utc(server, secs);
+}
+
+
+/* Convert linear UNIX date to a MS-DOS time/date pair. */
+
+static void
+date_unix2dos(struct smb_sb_info *server,
+ int unix_date, __u16 *date, __u16 *time)
+{
+ int day, year, nl_day, month;
+
+ unix_date = utc2local(server, unix_date);
+ if (unix_date < 315532800)
+ unix_date = 315532800;
+
+ *time = (unix_date % 60) / 2 +
+ (((unix_date / 60) % 60) << 5) +
+ (((unix_date / 3600) % 24) << 11);
+
+ day = unix_date / 86400 - 3652;
+ year = day / 365;
+ if ((year + 3) / 4 + 365 * year > day)
+ year--;
+ day -= (year + 3) / 4 + 365 * year;
+ if (day == 59 && !(year & 3)) {
+ nl_day = day;
+ month = 2;
+ } else {
+ nl_day = (year & 3) || day <= 59 ? day : day - 1;
+ for (month = 1; month < 12; month++)
+ if (day_n[month] > nl_day)
+ break;
+ }
+ *date = nl_day - day_n[month - 1] + 1 + (month << 5) + (year << 9);
+}
+
+/* The following are taken from fs/ntfs/util.c */
+
+#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
+
+/*
+ * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
+ * into Unix UTC (based 1970-01-01, in seconds).
+ */
+static struct timespec
+smb_ntutc2unixutc(u64 ntutc)
+{
+ struct timespec ts;
+ /* FIXME: what about the timezone difference? */
+ /* Subtract the NTFS time offset, then convert to 1s intervals. */
+ u64 t = ntutc - NTFS_TIME_OFFSET;
+ ts.tv_nsec = do_div(t, 10000000) * 100;
+ ts.tv_sec = t;
+ return ts;
+}
+
+/* Convert the Unix UTC into NT time */
+static u64
+smb_unixutc2ntutc(struct timespec ts)
+{
+ /* Note: timezone conversion is probably wrong. */
+ /* return ((u64)utc2local(server, t)) * 10000000 + NTFS_TIME_OFFSET; */
+ return ((u64)ts.tv_sec) * 10000000 + ts.tv_nsec/100 + NTFS_TIME_OFFSET;
+}
+
+#define MAX_FILE_MODE 6
+static mode_t file_mode[] = {
+ S_IFREG, S_IFDIR, S_IFLNK, S_IFCHR, S_IFBLK, S_IFIFO, S_IFSOCK
+};
+
+static int smb_filetype_to_mode(u32 filetype)
+{
+ if (filetype > MAX_FILE_MODE) {
+ PARANOIA("Filetype out of range: %d\n", filetype);
+ return S_IFREG;
+ }
+ return file_mode[filetype];
+}
+
+static u32 smb_filetype_from_mode(int mode)
+{
+ if (S_ISREG(mode))
+ return UNIX_TYPE_FILE;
+ if (S_ISDIR(mode))
+ return UNIX_TYPE_DIR;
+ if (S_ISLNK(mode))
+ return UNIX_TYPE_SYMLINK;
+ if (S_ISCHR(mode))
+ return UNIX_TYPE_CHARDEV;
+ if (S_ISBLK(mode))
+ return UNIX_TYPE_BLKDEV;
+ if (S_ISFIFO(mode))
+ return UNIX_TYPE_FIFO;
+ if (S_ISSOCK(mode))
+ return UNIX_TYPE_SOCKET;
+ return UNIX_TYPE_UNKNOWN;
+}
+
+
+/*****************************************************************************/
+/* */
+/* Support section. */
+/* */
+/*****************************************************************************/
+
+__u32
+smb_len(__u8 * p)
+{
+ return ((*(p+1) & 0x1) << 16L) | (*(p+2) << 8L) | *(p+3);
+}
+
+static __u16
+smb_bcc(__u8 * packet)
+{
+ int pos = SMB_HEADER_LEN + SMB_WCT(packet) * sizeof(__u16);
+ return WVAL(packet, pos);
+}
+
+/* smb_valid_packet: We check if packet fulfills the basic
+ requirements of a smb packet */
+
+static int
+smb_valid_packet(__u8 * packet)
+{
+ return (packet[4] == 0xff
+ && packet[5] == 'S'
+ && packet[6] == 'M'
+ && packet[7] == 'B'
+ && (smb_len(packet) + 4 == SMB_HEADER_LEN
+ + SMB_WCT(packet) * 2 + smb_bcc(packet)));
+}
+
+/* smb_verify: We check if we got the answer we expected, and if we
+ got enough data. If bcc == -1, we don't care. */
+
+static int
+smb_verify(__u8 * packet, int command, int wct, int bcc)
+{
+ if (SMB_CMD(packet) != command)
+ goto bad_command;
+ if (SMB_WCT(packet) < wct)
+ goto bad_wct;
+ if (bcc != -1 && smb_bcc(packet) < bcc)
+ goto bad_bcc;
+ return 0;
+
+bad_command:
+ printk(KERN_ERR "smb_verify: command=%x, SMB_CMD=%x??\n",
+ command, SMB_CMD(packet));
+ goto fail;
+bad_wct:
+ printk(KERN_ERR "smb_verify: command=%x, wct=%d, SMB_WCT=%d??\n",
+ command, wct, SMB_WCT(packet));
+ goto fail;
+bad_bcc:
+ printk(KERN_ERR "smb_verify: command=%x, bcc=%d, SMB_BCC=%d??\n",
+ command, bcc, smb_bcc(packet));
+fail:
+ return -EIO;
+}
+
+/*
+ * Returns the maximum read or write size for the "payload". Making all of the
+ * packet fit within the negotiated max_xmit size.
+ *
+ * N.B. Since this value is usually computed before locking the server,
+ * the server's packet size must never be decreased!
+ */
+static inline int
+smb_get_xmitsize(struct smb_sb_info *server, int overhead)
+{
+ return server->opt.max_xmit - overhead;
+}
+
+/*
+ * Calculate the maximum read size
+ */
+int
+smb_get_rsize(struct smb_sb_info *server)
+{
+ /* readX has 12 parameters, read has 5 */
+ int overhead = SMB_HEADER_LEN + 12 * sizeof(__u16) + 2 + 1 + 2;
+ int size = smb_get_xmitsize(server, overhead);
+
+ VERBOSE("xmit=%d, size=%d\n", server->opt.max_xmit, size);
+
+ return size;
+}
+
+/*
+ * Calculate the maximum write size
+ */
+int
+smb_get_wsize(struct smb_sb_info *server)
+{
+ /* writeX has 14 parameters, write has 5 */
+ int overhead = SMB_HEADER_LEN + 14 * sizeof(__u16) + 2 + 1 + 2;
+ int size = smb_get_xmitsize(server, overhead);
+
+ VERBOSE("xmit=%d, size=%d\n", server->opt.max_xmit, size);
+
+ return size;
+}
+
+/*
+ * Convert SMB error codes to -E... errno values.
+ */
+int
+smb_errno(struct smb_request *req)
+{
+ int errcls = req->rq_rcls;
+ int error = req->rq_err;
+ char *class = "Unknown";
+
+ VERBOSE("errcls %d code %d from command 0x%x\n",
+ errcls, error, SMB_CMD(req->rq_header));
+
+ if (errcls == ERRDOS) {
+ switch (error) {
+ case ERRbadfunc:
+ return -EINVAL;
+ case ERRbadfile:
+ case ERRbadpath:
+ return -ENOENT;
+ case ERRnofids:
+ return -EMFILE;
+ case ERRnoaccess:
+ return -EACCES;
+ case ERRbadfid:
+ return -EBADF;
+ case ERRbadmcb:
+ return -EREMOTEIO;
+ case ERRnomem:
+ return -ENOMEM;
+ case ERRbadmem:
+ return -EFAULT;
+ case ERRbadenv:
+ case ERRbadformat:
+ return -EREMOTEIO;
+ case ERRbadaccess:
+ return -EACCES;
+ case ERRbaddata:
+ return -E2BIG;
+ case ERRbaddrive:
+ return -ENXIO;
+ case ERRremcd:
+ return -EREMOTEIO;
+ case ERRdiffdevice:
+ return -EXDEV;
+ case ERRnofiles:
+ return -ENOENT;
+ case ERRbadshare:
+ return -ETXTBSY;
+ case ERRlock:
+ return -EDEADLK;
+ case ERRfilexists:
+ return -EEXIST;
+ case ERROR_INVALID_PARAMETER:
+ return -EINVAL;
+ case ERROR_DISK_FULL:
+ return -ENOSPC;
+ case ERROR_INVALID_NAME:
+ return -ENOENT;
+ case ERROR_DIR_NOT_EMPTY:
+ return -ENOTEMPTY;
+ case ERROR_NOT_LOCKED:
+ return -ENOLCK;
+ case ERROR_ALREADY_EXISTS:
+ return -EEXIST;
+ default:
+ class = "ERRDOS";
+ goto err_unknown;
+ }
+ } else if (errcls == ERRSRV) {
+ switch (error) {
+ /* N.B. This is wrong ... EIO ? */
+ case ERRerror:
+ return -ENFILE;
+ case ERRbadpw:
+ return -EINVAL;
+ case ERRbadtype:
+ case ERRtimeout:
+ return -EIO;
+ case ERRaccess:
+ return -EACCES;
+ /*
+ * This is a fatal error, as it means the "tree ID"
+ * for this connection is no longer valid. We map
+ * to a special error code and get a new connection.
+ */
+ case ERRinvnid:
+ return -EBADSLT;
+ default:
+ class = "ERRSRV";
+ goto err_unknown;
+ }
+ } else if (errcls == ERRHRD) {
+ switch (error) {
+ case ERRnowrite:
+ return -EROFS;
+ case ERRbadunit:
+ return -ENODEV;
+ case ERRnotready:
+ return -EUCLEAN;
+ case ERRbadcmd:
+ case ERRdata:
+ return -EIO;
+ case ERRbadreq:
+ return -ERANGE;
+ case ERRbadshare:
+ return -ETXTBSY;
+ case ERRlock:
+ return -EDEADLK;
+ case ERRdiskfull:
+ return -ENOSPC;
+ default:
+ class = "ERRHRD";
+ goto err_unknown;
+ }
+ } else if (errcls == ERRCMD) {
+ class = "ERRCMD";
+ } else if (errcls == SUCCESS) {
+ return 0; /* This is the only valid 0 return */
+ }
+
+err_unknown:
+ printk(KERN_ERR "smb_errno: class %s, code %d from command 0x%x\n",
+ class, error, SMB_CMD(req->rq_header));
+ return -EIO;
+}
+
+/* smb_request_ok: We expect the server to be locked. Then we do the
+ request and check the answer completely. When smb_request_ok
+ returns 0, you can be quite sure that everything went well. When
+ the answer is <=0, the returned number is a valid unix errno. */
+
+static int
+smb_request_ok(struct smb_request *req, int command, int wct, int bcc)
+{
+ int result;
+
+ req->rq_resp_wct = wct;
+ req->rq_resp_bcc = bcc;
+
+ result = smb_add_request(req);
+ if (result != 0) {
+ DEBUG1("smb_request failed\n");
+ goto out;
+ }
+
+ if (smb_valid_packet(req->rq_header) != 0) {
+ PARANOIA("invalid packet!\n");
+ goto out;
+ }
+
+ result = smb_verify(req->rq_header, command, wct, bcc);
+
+out:
+ return result;
+}
+
+/*
+ * This implements the NEWCONN ioctl. It installs the server pid,
+ * sets server->state to CONN_VALID, and wakes up the waiting process.
+ */
+int
+smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt)
+{
+ struct file *filp;
+ struct sock *sk;
+ int error;
+
+ VERBOSE("fd=%d, pid=%d\n", opt->fd, current->pid);
+
+ smb_lock_server(server);
+
+ /*
+ * Make sure we don't already have a valid connection ...
+ */
+ error = -EINVAL;
+ if (server->state == CONN_VALID)
+ goto out;
+
+ error = -EACCES;
+ if (current_uid() != server->mnt->mounted_uid &&
+ !capable(CAP_SYS_ADMIN))
+ goto out;
+
+ error = -EBADF;
+ filp = fget(opt->fd);
+ if (!filp)
+ goto out;
+ if (!smb_valid_socket(filp->f_path.dentry->d_inode))
+ goto out_putf;
+
+ server->sock_file = filp;
+ server->conn_pid = get_pid(task_pid(current));
+ server->opt = *opt;
+ server->generation += 1;
+ server->state = CONN_VALID;
+ error = 0;
+
+ if (server->conn_error) {
+ /*
+ * conn_error is the returncode we originally decided to
+ * drop the old connection on. This message should be positive
+ * and not make people ask questions on why smbfs is printing
+ * error messages ...
+ */
+ printk(KERN_INFO "SMB connection re-established (%d)\n",
+ server->conn_error);
+ server->conn_error = 0;
+ }
+
+ /*
+ * Store the server in sock user_data (Only used by sunrpc)
+ */
+ sk = SOCKET_I(filp->f_path.dentry->d_inode)->sk;
+ sk->sk_user_data = server;
+
+ /* chain into the data_ready callback */
+ server->data_ready = xchg(&sk->sk_data_ready, smb_data_ready);
+
+ /* check if we have an old smbmount that uses seconds for the
+ serverzone */
+ if (server->opt.serverzone > 12*60 || server->opt.serverzone < -12*60)
+ server->opt.serverzone /= 60;
+
+ /* now that we have an established connection we can detect the server
+ type and enable bug workarounds */
+ if (server->opt.protocol < SMB_PROTOCOL_LANMAN2)
+ install_ops(server->ops, &smb_ops_core);
+ else if (server->opt.protocol == SMB_PROTOCOL_LANMAN2)
+ install_ops(server->ops, &smb_ops_os2);
+ else if (server->opt.protocol == SMB_PROTOCOL_NT1 &&
+ (server->opt.max_xmit < 0x1000) &&
+ !(server->opt.capabilities & SMB_CAP_NT_SMBS)) {
+ /* FIXME: can we kill the WIN95 flag now? */
+ server->mnt->flags |= SMB_MOUNT_WIN95;
+ VERBOSE("detected WIN95 server\n");
+ install_ops(server->ops, &smb_ops_win95);
+ } else {
+ /*
+ * Samba has max_xmit 65535
+ * NT4spX has max_xmit 4536 (or something like that)
+ * win2k has ...
+ */
+ VERBOSE("detected NT1 (Samba, NT4/5) server\n");
+ install_ops(server->ops, &smb_ops_winNT);
+ }
+
+ /* FIXME: the win9x code wants to modify these ... (seek/trunc bug) */
+ if (server->mnt->flags & SMB_MOUNT_OLDATTR) {
+ server->ops->getattr = smb_proc_getattr_core;
+ } else if (server->mnt->flags & SMB_MOUNT_DIRATTR) {
+ server->ops->getattr = smb_proc_getattr_ff;
+ }
+
+ /* Decode server capabilities */
+ if (server->opt.capabilities & SMB_CAP_LARGE_FILES) {
+ /* Should be ok to set this now, as no one can access the
+ mount until the connection has been established. */
+ SB_of(server)->s_maxbytes = ~0ULL >> 1;
+ VERBOSE("LFS enabled\n");
+ }
+ if (server->opt.capabilities & SMB_CAP_UNICODE) {
+ server->mnt->flags |= SMB_MOUNT_UNICODE;
+ VERBOSE("Unicode enabled\n");
+ } else {
+ server->mnt->flags &= ~SMB_MOUNT_UNICODE;
+ }
+#if 0
+ /* flags we may test for other patches ... */
+ if (server->opt.capabilities & SMB_CAP_LARGE_READX) {
+ VERBOSE("Large reads enabled\n");
+ }
+ if (server->opt.capabilities & SMB_CAP_LARGE_WRITEX) {
+ VERBOSE("Large writes enabled\n");
+ }
+#endif
+ if (server->opt.capabilities & SMB_CAP_UNIX) {
+ struct inode *inode;
+ VERBOSE("Using UNIX CIFS extensions\n");
+ install_ops(server->ops, &smb_ops_unix);
+ inode = SB_of(server)->s_root->d_inode;
+ if (inode)
+ inode->i_op = &smb_dir_inode_operations_unix;
+ }
+
+ VERBOSE("protocol=%d, max_xmit=%d, pid=%d capabilities=0x%x\n",
+ server->opt.protocol, server->opt.max_xmit,
+ pid_nr(server->conn_pid), server->opt.capabilities);
+
+ /* FIXME: this really should be done by smbmount. */
+ if (server->opt.max_xmit > SMB_MAX_PACKET_SIZE) {
+ server->opt.max_xmit = SMB_MAX_PACKET_SIZE;
+ }
+
+ smb_unlock_server(server);
+ smbiod_wake_up();
+ if (server->opt.capabilities & SMB_CAP_UNIX)
+ smb_proc_query_cifsunix(server);
+
+ server->conn_complete++;
+ wake_up_interruptible_all(&server->conn_wq);
+ return error;
+
+out:
+ smb_unlock_server(server);
+ smbiod_wake_up();
+ return error;
+
+out_putf:
+ fput(filp);
+ goto out;
+}
+
+/* smb_setup_header: We completely set up the packet. You only have to
+ insert the command-specific fields */
+
+__u8 *
+smb_setup_header(struct smb_request *req, __u8 command, __u16 wct, __u16 bcc)
+{
+ __u32 xmit_len = SMB_HEADER_LEN + wct * sizeof(__u16) + bcc + 2;
+ __u8 *p = req->rq_header;
+ struct smb_sb_info *server = req->rq_server;
+
+ p = smb_encode_smb_length(p, xmit_len - 4);
+
+ *p++ = 0xff;
+ *p++ = 'S';
+ *p++ = 'M';
+ *p++ = 'B';
+ *p++ = command;
+
+ memset(p, '\0', 19);
+ p += 19;
+ p += 8;
+
+ if (server->opt.protocol > SMB_PROTOCOL_CORE) {
+ int flags = SMB_FLAGS_CASELESS_PATHNAMES;
+ int flags2 = SMB_FLAGS2_LONG_PATH_COMPONENTS |
+ SMB_FLAGS2_EXTENDED_ATTRIBUTES; /* EA? not really ... */
+
+ *(req->rq_header + smb_flg) = flags;
+ if (server->mnt->flags & SMB_MOUNT_UNICODE)
+ flags2 |= SMB_FLAGS2_UNICODE_STRINGS;
+ WSET(req->rq_header, smb_flg2, flags2);
+ }
+ *p++ = wct; /* wct */
+ p += 2 * wct;
+ WSET(p, 0, bcc);
+
+ /* Include the header in the data to send */
+ req->rq_iovlen = 1;
+ req->rq_iov[0].iov_base = req->rq_header;
+ req->rq_iov[0].iov_len = xmit_len - bcc;
+
+ return req->rq_buffer;
+}
+
+static void
+smb_setup_bcc(struct smb_request *req, __u8 *p)
+{
+ u16 bcc = p - req->rq_buffer;
+ u8 *pbcc = req->rq_header + SMB_HEADER_LEN + 2*SMB_WCT(req->rq_header);
+
+ WSET(pbcc, 0, bcc);
+
+ smb_encode_smb_length(req->rq_header, SMB_HEADER_LEN +
+ 2*SMB_WCT(req->rq_header) - 2 + bcc);
+
+ /* Include the "bytes" in the data to send */
+ req->rq_iovlen = 2;
+ req->rq_iov[1].iov_base = req->rq_buffer;
+ req->rq_iov[1].iov_len = bcc;
+}
+
+static int
+smb_proc_seek(struct smb_sb_info *server, __u16 fileid,
+ __u16 mode, off_t offset)
+{
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBlseek, 4, 0);
+ WSET(req->rq_header, smb_vwv0, fileid);
+ WSET(req->rq_header, smb_vwv1, mode);
+ DSET(req->rq_header, smb_vwv2, offset);
+ req->rq_flags |= SMB_REQ_NORETRY;
+
+ result = smb_request_ok(req, SMBlseek, 2, 0);
+ if (result < 0) {
+ result = 0;
+ goto out_free;
+ }
+
+ result = DVAL(req->rq_header, smb_vwv0);
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_open(struct smb_sb_info *server, struct dentry *dentry, int wish)
+{
+ struct inode *ino = dentry->d_inode;
+ struct smb_inode_info *ei = SMB_I(ino);
+ int mode, read_write = 0x42, read_only = 0x40;
+ int res;
+ char *p;
+ struct smb_request *req;
+
+ /*
+ * Attempt to open r/w, unless there are no write privileges.
+ */
+ mode = read_write;
+ if (!(ino->i_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
+ mode = read_only;
+#if 0
+ /* FIXME: why is this code not in? below we fix it so that a caller
+ wanting RO doesn't get RW. smb_revalidate_inode does some
+ optimization based on access mode. tail -f needs it to be correct.
+
+ We must open rw since we don't do the open if called a second time
+ with different 'wish'. Is that not supported by smb servers? */
+ if (!(wish & (O_WRONLY | O_RDWR)))
+ mode = read_only;
+#endif
+
+ res = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ retry:
+ p = smb_setup_header(req, SMBopen, 2, 0);
+ WSET(req->rq_header, smb_vwv0, mode);
+ WSET(req->rq_header, smb_vwv1, aSYSTEM | aHIDDEN | aDIR);
+ res = smb_simple_encode_path(req, &p, dentry, NULL);
+ if (res < 0)
+ goto out_free;
+ smb_setup_bcc(req, p);
+
+ res = smb_request_ok(req, SMBopen, 7, 0);
+ if (res != 0) {
+ if (mode == read_write &&
+ (res == -EACCES || res == -ETXTBSY || res == -EROFS))
+ {
+ VERBOSE("%s/%s R/W failed, error=%d, retrying R/O\n",
+ DENTRY_PATH(dentry), res);
+ mode = read_only;
+ req->rq_flags = 0;
+ goto retry;
+ }
+ goto out_free;
+ }
+ /* We should now have data in vwv[0..6]. */
+
+ ei->fileid = WVAL(req->rq_header, smb_vwv0);
+ ei->attr = WVAL(req->rq_header, smb_vwv1);
+ /* smb_vwv2 has mtime */
+ /* smb_vwv4 has size */
+ ei->access = (WVAL(req->rq_header, smb_vwv6) & SMB_ACCMASK);
+ ei->open = server->generation;
+
+out_free:
+ smb_rput(req);
+out:
+ return res;
+}
+
+/*
+ * Make sure the file is open, and check that the access
+ * is compatible with the desired access.
+ */
+int
+smb_open(struct dentry *dentry, int wish)
+{
+ struct inode *inode = dentry->d_inode;
+ int result;
+ __u16 access;
+
+ result = -ENOENT;
+ if (!inode) {
+ printk(KERN_ERR "smb_open: no inode for dentry %s/%s\n",
+ DENTRY_PATH(dentry));
+ goto out;
+ }
+
+ if (!smb_is_open(inode)) {
+ struct smb_sb_info *server = server_from_inode(inode);
+ result = 0;
+ if (!smb_is_open(inode))
+ result = smb_proc_open(server, dentry, wish);
+ if (result)
+ goto out;
+ /*
+ * A successful open means the path is still valid ...
+ */
+ smb_renew_times(dentry);
+ }
+
+ /*
+ * Check whether the access is compatible with the desired mode.
+ */
+ result = 0;
+ access = SMB_I(inode)->access;
+ if (access != wish && access != SMB_O_RDWR) {
+ PARANOIA("%s/%s access denied, access=%x, wish=%x\n",
+ DENTRY_PATH(dentry), access, wish);
+ result = -EACCES;
+ }
+out:
+ return result;
+}
+
+static int
+smb_proc_close(struct smb_sb_info *server, __u16 fileid, __u32 mtime)
+{
+ struct smb_request *req;
+ int result = -ENOMEM;
+
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBclose, 3, 0);
+ WSET(req->rq_header, smb_vwv0, fileid);
+ DSET(req->rq_header, smb_vwv1, utc2local(server, mtime));
+ req->rq_flags |= SMB_REQ_NORETRY;
+ result = smb_request_ok(req, SMBclose, 0, 0);
+
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * Win NT 4.0 has an apparent bug in that it fails to update the
+ * modify time when writing to a file. As a workaround, we update
+ * both modify and access time locally, and post the times to the
+ * server when closing the file.
+ */
+static int
+smb_proc_close_inode(struct smb_sb_info *server, struct inode * ino)
+{
+ struct smb_inode_info *ei = SMB_I(ino);
+ int result = 0;
+ if (smb_is_open(ino))
+ {
+ /*
+ * We clear the open flag in advance, in case another
+ * process observes the value while we block below.
+ */
+ ei->open = 0;
+
+ /*
+ * Kludge alert: SMB timestamps are accurate only to
+ * two seconds ... round the times to avoid needless
+ * cache invalidations!
+ */
+ if (ino->i_mtime.tv_sec & 1) {
+ ino->i_mtime.tv_sec--;
+ ino->i_mtime.tv_nsec = 0;
+ }
+ if (ino->i_atime.tv_sec & 1) {
+ ino->i_atime.tv_sec--;
+ ino->i_atime.tv_nsec = 0;
+ }
+ /*
+ * If the file is open with write permissions,
+ * update the time stamps to sync mtime and atime.
+ */
+ if ((server->opt.capabilities & SMB_CAP_UNIX) == 0 &&
+ (server->opt.protocol >= SMB_PROTOCOL_LANMAN2) &&
+ !(ei->access == SMB_O_RDONLY))
+ {
+ struct smb_fattr fattr;
+ smb_get_inode_attr(ino, &fattr);
+ smb_proc_setattr_ext(server, ino, &fattr);
+ }
+
+ result = smb_proc_close(server, ei->fileid, ino->i_mtime.tv_sec);
+ /*
+ * Force a revalidation after closing ... some servers
+ * don't post the size until the file has been closed.
+ */
+ if (server->opt.protocol < SMB_PROTOCOL_NT1)
+ ei->oldmtime = 0;
+ ei->closed = jiffies;
+ }
+ return result;
+}
+
+int
+smb_close(struct inode *ino)
+{
+ int result = 0;
+
+ if (smb_is_open(ino)) {
+ struct smb_sb_info *server = server_from_inode(ino);
+ result = smb_proc_close_inode(server, ino);
+ }
+ return result;
+}
+
+/*
+ * This is used to close a file following a failed instantiate.
+ * Since we don't have an inode, we can't use any of the above.
+ */
+int
+smb_close_fileid(struct dentry *dentry, __u16 fileid)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ int result;
+
+ result = smb_proc_close(server, fileid, get_seconds());
+ return result;
+}
+
+/* In smb_proc_read and smb_proc_write we do not retry, because the
+ file-id would not be valid after a reconnection. */
+
+static void
+smb_proc_read_data(struct smb_request *req)
+{
+ req->rq_iov[0].iov_base = req->rq_buffer;
+ req->rq_iov[0].iov_len = 3;
+
+ req->rq_iov[1].iov_base = req->rq_page;
+ req->rq_iov[1].iov_len = req->rq_rsize;
+ req->rq_iovlen = 2;
+
+ req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
+}
+
+static int
+smb_proc_read(struct inode *inode, loff_t offset, int count, char *data)
+{
+ struct smb_sb_info *server = server_from_inode(inode);
+ __u16 returned_count, data_len;
+ unsigned char *buf;
+ int result;
+ struct smb_request *req;
+ u8 rbuf[4];
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBread, 5, 0);
+ buf = req->rq_header;
+ WSET(buf, smb_vwv0, SMB_I(inode)->fileid);
+ WSET(buf, smb_vwv1, count);
+ DSET(buf, smb_vwv2, offset);
+ WSET(buf, smb_vwv4, 0);
+
+ req->rq_page = data;
+ req->rq_rsize = count;
+ req->rq_callback = smb_proc_read_data;
+ req->rq_buffer = rbuf;
+ req->rq_flags |= SMB_REQ_NORETRY | SMB_REQ_STATIC;
+
+ result = smb_request_ok(req, SMBread, 5, -1);
+ if (result < 0)
+ goto out_free;
+ returned_count = WVAL(req->rq_header, smb_vwv0);
+
+ data_len = WVAL(rbuf, 1);
+
+ if (returned_count != data_len) {
+ printk(KERN_NOTICE "smb_proc_read: returned != data_len\n");
+ printk(KERN_NOTICE "smb_proc_read: ret_c=%d, data_len=%d\n",
+ returned_count, data_len);
+ }
+ result = data_len;
+
+out_free:
+ smb_rput(req);
+out:
+ VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
+ inode->i_ino, SMB_I(inode)->fileid, count, result);
+ return result;
+}
+
+static int
+smb_proc_write(struct inode *inode, loff_t offset, int count, const char *data)
+{
+ struct smb_sb_info *server = server_from_inode(inode);
+ int result;
+ u16 fileid = SMB_I(inode)->fileid;
+ u8 buf[4];
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld\n",
+ inode->i_ino, fileid, count, offset);
+
+ smb_setup_header(req, SMBwrite, 5, count + 3);
+ WSET(req->rq_header, smb_vwv0, fileid);
+ WSET(req->rq_header, smb_vwv1, count);
+ DSET(req->rq_header, smb_vwv2, offset);
+ WSET(req->rq_header, smb_vwv4, 0);
+
+ buf[0] = 1;
+ WSET(buf, 1, count); /* yes, again ... */
+ req->rq_iov[1].iov_base = buf;
+ req->rq_iov[1].iov_len = 3;
+ req->rq_iov[2].iov_base = (char *) data;
+ req->rq_iov[2].iov_len = count;
+ req->rq_iovlen = 3;
+ req->rq_flags |= SMB_REQ_NORETRY;
+
+ result = smb_request_ok(req, SMBwrite, 1, 0);
+ if (result >= 0)
+ result = WVAL(req->rq_header, smb_vwv0);
+
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * In smb_proc_readX and smb_proc_writeX we do not retry, because the
+ * file-id would not be valid after a reconnection.
+ */
+
+#define SMB_READX_MAX_PAD 64
+static void
+smb_proc_readX_data(struct smb_request *req)
+{
+ /* header length, excluding the netbios length (-4) */
+ int hdrlen = SMB_HEADER_LEN + req->rq_resp_wct*2 - 2;
+ int data_off = WVAL(req->rq_header, smb_vwv6);
+
+ /*
+ * Some genius made the padding to the data bytes arbitrary.
+ * So we must first calculate the amount of padding used by the server.
+ */
+ data_off -= hdrlen;
+ if (data_off > SMB_READX_MAX_PAD || data_off < 0) {
+ PARANOIA("offset is larger than SMB_READX_MAX_PAD or negative!\n");
+ PARANOIA("%d > %d || %d < 0\n", data_off, SMB_READX_MAX_PAD, data_off);
+ req->rq_rlen = req->rq_bufsize + 1;
+ return;
+ }
+ req->rq_iov[0].iov_base = req->rq_buffer;
+ req->rq_iov[0].iov_len = data_off;
+
+ req->rq_iov[1].iov_base = req->rq_page;
+ req->rq_iov[1].iov_len = req->rq_rsize;
+ req->rq_iovlen = 2;
+
+ req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
+}
+
+static int
+smb_proc_readX(struct inode *inode, loff_t offset, int count, char *data)
+{
+ struct smb_sb_info *server = server_from_inode(inode);
+ unsigned char *buf;
+ int result;
+ struct smb_request *req;
+ static char pad[SMB_READX_MAX_PAD];
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBreadX, 12, 0);
+ buf = req->rq_header;
+ WSET(buf, smb_vwv0, 0x00ff);
+ WSET(buf, smb_vwv1, 0);
+ WSET(buf, smb_vwv2, SMB_I(inode)->fileid);
+ DSET(buf, smb_vwv3, (u32)offset); /* low 32 bits */
+ WSET(buf, smb_vwv5, count);
+ WSET(buf, smb_vwv6, 0);
+ DSET(buf, smb_vwv7, 0);
+ WSET(buf, smb_vwv9, 0);
+ DSET(buf, smb_vwv10, (u32)(offset >> 32)); /* high 32 bits */
+ WSET(buf, smb_vwv11, 0);
+
+ req->rq_page = data;
+ req->rq_rsize = count;
+ req->rq_callback = smb_proc_readX_data;
+ req->rq_buffer = pad;
+ req->rq_bufsize = SMB_READX_MAX_PAD;
+ req->rq_flags |= SMB_REQ_STATIC | SMB_REQ_NORETRY;
+
+ result = smb_request_ok(req, SMBreadX, 12, -1);
+ if (result < 0)
+ goto out_free;
+ result = WVAL(req->rq_header, smb_vwv5);
+
+out_free:
+ smb_rput(req);
+out:
+ VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
+ inode->i_ino, SMB_I(inode)->fileid, count, result);
+ return result;
+}
+
+static int
+smb_proc_writeX(struct inode *inode, loff_t offset, int count, const char *data)
+{
+ struct smb_sb_info *server = server_from_inode(inode);
+ int result;
+ u8 *p;
+ static u8 pad[4];
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld\n",
+ inode->i_ino, SMB_I(inode)->fileid, count, offset);
+
+ p = smb_setup_header(req, SMBwriteX, 14, count + 1);
+ WSET(req->rq_header, smb_vwv0, 0x00ff);
+ WSET(req->rq_header, smb_vwv1, 0);
+ WSET(req->rq_header, smb_vwv2, SMB_I(inode)->fileid);
+ DSET(req->rq_header, smb_vwv3, (u32)offset); /* low 32 bits */
+ DSET(req->rq_header, smb_vwv5, 0);
+ WSET(req->rq_header, smb_vwv7, 0); /* write mode */
+ WSET(req->rq_header, smb_vwv8, 0);
+ WSET(req->rq_header, smb_vwv9, 0);
+ WSET(req->rq_header, smb_vwv10, count); /* data length */
+ WSET(req->rq_header, smb_vwv11, smb_vwv12 + 2 + 1);
+ DSET(req->rq_header, smb_vwv12, (u32)(offset >> 32));
+
+ req->rq_iov[1].iov_base = pad;
+ req->rq_iov[1].iov_len = 1;
+ req->rq_iov[2].iov_base = (char *) data;
+ req->rq_iov[2].iov_len = count;
+ req->rq_iovlen = 3;
+ req->rq_flags |= SMB_REQ_NORETRY;
+
+ result = smb_request_ok(req, SMBwriteX, 6, 0);
+ if (result >= 0)
+ result = WVAL(req->rq_header, smb_vwv2);
+
+ smb_rput(req);
+out:
+ return result;
+}
+
+int
+smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ char *p;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ p = smb_setup_header(req, SMBcreate, 3, 0);
+ WSET(req->rq_header, smb_vwv0, attr);
+ DSET(req->rq_header, smb_vwv1, utc2local(server, ctime));
+ result = smb_simple_encode_path(req, &p, dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ smb_setup_bcc(req, p);
+
+ result = smb_request_ok(req, SMBcreate, 1, 0);
+ if (result < 0)
+ goto out_free;
+
+ *fileid = WVAL(req->rq_header, smb_vwv0);
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+int
+smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry)
+{
+ struct smb_sb_info *server = server_from_dentry(old_dentry);
+ char *p;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ p = smb_setup_header(req, SMBmv, 1, 0);
+ WSET(req->rq_header, smb_vwv0, aSYSTEM | aHIDDEN | aDIR);
+ result = smb_simple_encode_path(req, &p, old_dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ result = smb_simple_encode_path(req, &p, new_dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ smb_setup_bcc(req, p);
+
+ if ((result = smb_request_ok(req, SMBmv, 0, 0)) < 0)
+ goto out_free;
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * Code common to mkdir and rmdir.
+ */
+static int
+smb_proc_generic_command(struct dentry *dentry, __u8 command)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ char *p;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ p = smb_setup_header(req, command, 0, 0);
+ result = smb_simple_encode_path(req, &p, dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ smb_setup_bcc(req, p);
+
+ result = smb_request_ok(req, command, 0, 0);
+ if (result < 0)
+ goto out_free;
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+int
+smb_proc_mkdir(struct dentry *dentry)
+{
+ return smb_proc_generic_command(dentry, SMBmkdir);
+}
+
+int
+smb_proc_rmdir(struct dentry *dentry)
+{
+ return smb_proc_generic_command(dentry, SMBrmdir);
+}
+
+#if SMBFS_POSIX_UNLINK
+/*
+ * Removes readonly attribute from a file. Used by unlink to give posix
+ * semantics.
+ */
+static int
+smb_set_rw(struct dentry *dentry,struct smb_sb_info *server)
+{
+ int result;
+ struct smb_fattr fattr;
+
+ /* FIXME: cifsUE should allow removing a readonly file. */
+
+ /* first get current attribute */
+ smb_init_dirent(server, &fattr);
+ result = server->ops->getattr(server, dentry, &fattr);
+ smb_finish_dirent(server, &fattr);
+ if (result < 0)
+ return result;
+
+ /* if RONLY attribute is set, remove it */
+ if (fattr.attr & aRONLY) { /* read only attribute is set */
+ fattr.attr &= ~aRONLY;
+ result = smb_proc_setattr_core(server, dentry, fattr.attr);
+ }
+ return result;
+}
+#endif
+
+int
+smb_proc_unlink(struct dentry *dentry)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ int flag = 0;
+ char *p;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ retry:
+ p = smb_setup_header(req, SMBunlink, 1, 0);
+ WSET(req->rq_header, smb_vwv0, aSYSTEM | aHIDDEN);
+ result = smb_simple_encode_path(req, &p, dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ smb_setup_bcc(req, p);
+
+ if ((result = smb_request_ok(req, SMBunlink, 0, 0)) < 0) {
+#if SMBFS_POSIX_UNLINK
+ if (result == -EACCES && !flag) {
+ /* Posix semantics is for the read-only state
+ of a file to be ignored in unlink(). In the
+ SMB world a unlink() is refused on a
+ read-only file. To make things easier for
+ unix users we try to override the files
+ permission if the unlink fails with the
+ right error.
+ This introduces a race condition that could
+ lead to a file being written by someone who
+ shouldn't have access, but as far as I can
+ tell that is unavoidable */
+
+ /* remove RONLY attribute and try again */
+ result = smb_set_rw(dentry,server);
+ if (result == 0) {
+ flag = 1;
+ req->rq_flags = 0;
+ goto retry;
+ }
+ }
+#endif
+ goto out_free;
+ }
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+int
+smb_proc_flush(struct smb_sb_info *server, __u16 fileid)
+{
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBflush, 1, 0);
+ WSET(req->rq_header, smb_vwv0, fileid);
+ req->rq_flags |= SMB_REQ_NORETRY;
+ result = smb_request_ok(req, SMBflush, 0, 0);
+
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_trunc32(struct inode *inode, loff_t length)
+{
+ /*
+ * Writing 0bytes is old-SMB magic for truncating files.
+ * MAX_NON_LFS should prevent this from being called with a too
+ * large offset.
+ */
+ return smb_proc_write(inode, length, 0, NULL);
+}
+
+static int
+smb_proc_trunc64(struct inode *inode, loff_t length)
+{
+ struct smb_sb_info *server = server_from_inode(inode);
+ int result;
+ char *param;
+ char *data;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 14)))
+ goto out;
+
+ param = req->rq_buffer;
+ data = req->rq_buffer + 6;
+
+ /* FIXME: must we also set allocation size? winNT seems to do that */
+ WSET(param, 0, SMB_I(inode)->fileid);
+ WSET(param, 2, SMB_SET_FILE_END_OF_FILE_INFO);
+ WSET(param, 4, 0);
+ LSET(data, 0, length);
+
+ req->rq_trans2_command = TRANSACT2_SETFILEINFO;
+ req->rq_ldata = 8;
+ req->rq_data = data;
+ req->rq_lparm = 6;
+ req->rq_parm = param;
+ req->rq_flags |= SMB_REQ_NORETRY;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+
+ result = 0;
+ if (req->rq_rcls != 0)
+ result = smb_errno(req);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_trunc95(struct inode *inode, loff_t length)
+{
+ struct smb_sb_info *server = server_from_inode(inode);
+ int result = smb_proc_trunc32(inode, length);
+
+ /*
+ * win9x doesn't appear to update the size immediately.
+ * It will return the old file size after the truncate,
+ * confusing smbfs. So we force an update.
+ *
+ * FIXME: is this still necessary?
+ */
+ smb_proc_flush(server, SMB_I(inode)->fileid);
+ return result;
+}
+
+static void
+smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+ memset(fattr, 0, sizeof(*fattr));
+
+ fattr->f_nlink = 1;
+ fattr->f_uid = server->mnt->uid;
+ fattr->f_gid = server->mnt->gid;
+ fattr->f_unix = 0;
+}
+
+static void
+smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+ if (fattr->f_unix)
+ return;
+
+ fattr->f_mode = server->mnt->file_mode;
+ if (fattr->attr & aDIR) {
+ fattr->f_mode = server->mnt->dir_mode;
+ fattr->f_size = SMB_ST_BLKSIZE;
+ }
+ /* Check the read-only flag */
+ if (fattr->attr & aRONLY)
+ fattr->f_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
+
+ /* How many 512 byte blocks do we need for this file? */
+ fattr->f_blocks = 0;
+ if (fattr->f_size != 0)
+ fattr->f_blocks = 1 + ((fattr->f_size-1) >> 9);
+ return;
+}
+
+void
+smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr,
+ struct super_block *sb)
+{
+ smb_init_dirent(server, fattr);
+ fattr->attr = aDIR;
+ fattr->f_ino = 2; /* traditional root inode number */
+ fattr->f_mtime = current_fs_time(sb);
+ smb_finish_dirent(server, fattr);
+}
+
+/*
+ * Decode a dirent for old protocols
+ *
+ * qname is filled with the decoded, and possibly translated, name.
+ * fattr receives decoded attributes
+ *
+ * Bugs Noted:
+ * (1) Pathworks servers may pad the name with extra spaces.
+ */
+static char *
+smb_decode_short_dirent(struct smb_sb_info *server, char *p,
+ struct qstr *qname, struct smb_fattr *fattr,
+ unsigned char *name_buf)
+{
+ int len;
+
+ /*
+ * SMB doesn't have a concept of inode numbers ...
+ */
+ smb_init_dirent(server, fattr);
+ fattr->f_ino = 0; /* FIXME: do we need this? */
+
+ p += SMB_STATUS_SIZE; /* reserved (search_status) */
+ fattr->attr = *p;
+ fattr->f_mtime.tv_sec = date_dos2unix(server, WVAL(p, 3), WVAL(p, 1));
+ fattr->f_mtime.tv_nsec = 0;
+ fattr->f_size = DVAL(p, 5);
+ fattr->f_ctime = fattr->f_mtime;
+ fattr->f_atime = fattr->f_mtime;
+ qname->name = p + 9;
+ len = strnlen(qname->name, 12);
+
+ /*
+ * Trim trailing blanks for Pathworks servers
+ */
+ while (len > 2 && qname->name[len-1] == ' ')
+ len--;
+
+ smb_finish_dirent(server, fattr);
+
+#if 0
+ /* FIXME: These only work for ascii chars, and recent smbmount doesn't
+ allow the flag to be set anyway. It kills const. Remove? */
+ switch (server->opt.case_handling) {
+ case SMB_CASE_UPPER:
+ str_upper(entry->name, len);
+ break;
+ case SMB_CASE_LOWER:
+ str_lower(entry->name, len);
+ break;
+ default:
+ break;
+ }
+#endif
+
+ qname->len = 0;
+ len = server->ops->convert(name_buf, SMB_MAXNAMELEN,
+ qname->name, len,
+ server->remote_nls, server->local_nls);
+ if (len > 0) {
+ qname->len = len;
+ qname->name = name_buf;
+ DEBUG1("len=%d, name=%.*s\n",qname->len,qname->len,qname->name);
+ }
+
+ return p + 22;
+}
+
+/*
+ * This routine is used to read in directory entries from the network.
+ * Note that it is for short directory name seeks, i.e.: protocol <
+ * SMB_PROTOCOL_LANMAN2
+ */
+static int
+smb_proc_readdir_short(struct file *filp, void *dirent, filldir_t filldir,
+ struct smb_cache_control *ctl)
+{
+ struct dentry *dir = filp->f_path.dentry;
+ struct smb_sb_info *server = server_from_dentry(dir);
+ struct qstr qname;
+ struct smb_fattr fattr;
+ char *p;
+ int result;
+ int i, first, entries_seen, entries;
+ int entries_asked = (server->opt.max_xmit - 100) / SMB_DIRINFO_SIZE;
+ __u16 bcc;
+ __u16 count;
+ char status[SMB_STATUS_SIZE];
+ static struct qstr mask = {
+ .name = "*.*",
+ .len = 3,
+ };
+ unsigned char *last_status;
+ struct smb_request *req;
+ unsigned char *name_buf;
+
+ VERBOSE("%s/%s\n", DENTRY_PATH(dir));
+
+ lock_kernel();
+
+ result = -ENOMEM;
+ if (! (name_buf = kmalloc(SMB_MAXNAMELEN, GFP_KERNEL)))
+ goto out;
+
+ first = 1;
+ entries = 0;
+ entries_seen = 2; /* implicit . and .. */
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, server->opt.max_xmit)))
+ goto out_name;
+
+ while (1) {
+ p = smb_setup_header(req, SMBsearch, 2, 0);
+ WSET(req->rq_header, smb_vwv0, entries_asked);
+ WSET(req->rq_header, smb_vwv1, aDIR);
+ if (first == 1) {
+ result = smb_simple_encode_path(req, &p, dir, &mask);
+ if (result < 0)
+ goto out_free;
+ if (p + 3 > (char *)req->rq_buffer + req->rq_bufsize) {
+ result = -ENAMETOOLONG;
+ goto out_free;
+ }
+ *p++ = 5;
+ WSET(p, 0, 0);
+ p += 2;
+ first = 0;
+ } else {
+ if (p + 5 + SMB_STATUS_SIZE >
+ (char *)req->rq_buffer + req->rq_bufsize) {
+ result = -ENAMETOOLONG;
+ goto out_free;
+ }
+
+ *p++ = 4;
+ *p++ = 0;
+ *p++ = 5;
+ WSET(p, 0, SMB_STATUS_SIZE);
+ p += 2;
+ memcpy(p, status, SMB_STATUS_SIZE);
+ p += SMB_STATUS_SIZE;
+ }
+
+ smb_setup_bcc(req, p);
+
+ result = smb_request_ok(req, SMBsearch, 1, -1);
+ if (result < 0) {
+ if ((req->rq_rcls == ERRDOS) &&
+ (req->rq_err == ERRnofiles))
+ break;
+ goto out_free;
+ }
+ count = WVAL(req->rq_header, smb_vwv0);
+ if (count <= 0)
+ break;
+
+ result = -EIO;
+ bcc = smb_bcc(req->rq_header);
+ if (bcc != count * SMB_DIRINFO_SIZE + 3)
+ goto out_free;
+ p = req->rq_buffer + 3;
+
+
+ /* Make sure the response fits in the buffer. Fixed sized
+ entries means we don't have to check in the decode loop. */
+
+ last_status = req->rq_buffer + 3 + (count-1) * SMB_DIRINFO_SIZE;
+
+ if (last_status + SMB_DIRINFO_SIZE >=
+ req->rq_buffer + req->rq_bufsize) {
+ printk(KERN_ERR "smb_proc_readdir_short: "
+ "last dir entry outside buffer! "
+ "%d@%p %d@%p\n", SMB_DIRINFO_SIZE, last_status,
+ req->rq_bufsize, req->rq_buffer);
+ goto out_free;
+ }
+
+ /* Read the last entry into the status field. */
+ memcpy(status, last_status, SMB_STATUS_SIZE);
+
+
+ /* Now we are ready to parse smb directory entries. */
+
+ for (i = 0; i < count; i++) {
+ p = smb_decode_short_dirent(server, p,
+ &qname, &fattr, name_buf);
+ if (qname.len == 0)
+ continue;
+
+ if (entries_seen == 2 && qname.name[0] == '.') {
+ if (qname.len == 1)
+ continue;
+ if (qname.name[1] == '.' && qname.len == 2)
+ continue;
+ }
+ if (!smb_fill_cache(filp, dirent, filldir, ctl,
+ &qname, &fattr))
+ ; /* stop reading? */
+ entries_seen++;
+ }
+ }
+ result = entries;
+
+out_free:
+ smb_rput(req);
+out_name:
+ kfree(name_buf);
+out:
+ unlock_kernel();
+ return result;
+}
+
+static void smb_decode_unix_basic(struct smb_fattr *fattr, struct smb_sb_info *server, char *p)
+{
+ u64 size, disk_bytes;
+
+ /* FIXME: verify nls support. all is sent as utf8? */
+
+ fattr->f_unix = 1;
+ fattr->f_mode = 0;
+
+ /* FIXME: use the uniqueID from the remote instead? */
+ /* 0 L file size in bytes */
+ /* 8 L file size on disk in bytes (block count) */
+ /* 40 L uid */
+ /* 48 L gid */
+ /* 56 W file type */
+ /* 60 L devmajor */
+ /* 68 L devminor */
+ /* 76 L unique ID (inode) */
+ /* 84 L permissions */
+ /* 92 L link count */
+
+ size = LVAL(p, 0);
+ disk_bytes = LVAL(p, 8);
+
+ /*
+ * Some samba versions round up on-disk byte usage
+ * to 1MB boundaries, making it useless. When seeing
+ * that, use the size instead.
+ */
+ if (!(disk_bytes & 0xfffff))
+ disk_bytes = size+511;
+
+ fattr->f_size = size;
+ fattr->f_blocks = disk_bytes >> 9;
+ fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 16));
+ fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 24));
+ fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 32));
+
+ if (server->mnt->flags & SMB_MOUNT_UID)
+ fattr->f_uid = server->mnt->uid;
+ else
+ fattr->f_uid = LVAL(p, 40);
+
+ if (server->mnt->flags & SMB_MOUNT_GID)
+ fattr->f_gid = server->mnt->gid;
+ else
+ fattr->f_gid = LVAL(p, 48);
+
+ fattr->f_mode |= smb_filetype_to_mode(WVAL(p, 56));
+
+ if (S_ISBLK(fattr->f_mode) || S_ISCHR(fattr->f_mode)) {
+ __u64 major = LVAL(p, 60);
+ __u64 minor = LVAL(p, 68);
+
+ fattr->f_rdev = MKDEV(major & 0xffffffff, minor & 0xffffffff);
+ if (MAJOR(fattr->f_rdev) != (major & 0xffffffff) ||
+ MINOR(fattr->f_rdev) != (minor & 0xffffffff))
+ fattr->f_rdev = 0;
+ }
+
+ fattr->f_mode |= LVAL(p, 84);
+
+ if ( (server->mnt->flags & SMB_MOUNT_DMODE) &&
+ (S_ISDIR(fattr->f_mode)) )
+ fattr->f_mode = (server->mnt->dir_mode & S_IRWXUGO) | S_IFDIR;
+ else if ( (server->mnt->flags & SMB_MOUNT_FMODE) &&
+ !(S_ISDIR(fattr->f_mode)) )
+ fattr->f_mode = (server->mnt->file_mode & S_IRWXUGO) |
+ (fattr->f_mode & S_IFMT);
+
+}
+
+/*
+ * Interpret a long filename structure using the specified info level:
+ * level 1 for anything below NT1 protocol
+ * level 260 for NT1 protocol
+ *
+ * qname is filled with the decoded, and possibly translated, name
+ * fattr receives decoded attributes.
+ *
+ * Bugs Noted:
+ * (1) Win NT 4.0 appends a null byte to names and counts it in the length!
+ */
+static char *
+smb_decode_long_dirent(struct smb_sb_info *server, char *p, int level,
+ struct qstr *qname, struct smb_fattr *fattr,
+ unsigned char *name_buf)
+{
+ char *result;
+ unsigned int len = 0;
+ int n;
+ __u16 date, time;
+ int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE);
+
+ /*
+ * SMB doesn't have a concept of inode numbers ...
+ */
+ smb_init_dirent(server, fattr);
+ fattr->f_ino = 0; /* FIXME: do we need this? */
+
+ switch (level) {
+ case 1:
+ len = *((unsigned char *) p + 22);
+ qname->name = p + 23;
+ result = p + 24 + len;
+
+ date = WVAL(p, 0);
+ time = WVAL(p, 2);
+ fattr->f_ctime.tv_sec = date_dos2unix(server, date, time);
+ fattr->f_ctime.tv_nsec = 0;
+
+ date = WVAL(p, 4);
+ time = WVAL(p, 6);
+ fattr->f_atime.tv_sec = date_dos2unix(server, date, time);
+ fattr->f_atime.tv_nsec = 0;
+
+ date = WVAL(p, 8);
+ time = WVAL(p, 10);
+ fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
+ fattr->f_mtime.tv_nsec = 0;
+ fattr->f_size = DVAL(p, 12);
+ /* ULONG allocation size */
+ fattr->attr = WVAL(p, 20);
+
+ VERBOSE("info 1 at %p, len=%d, name=%.*s\n",
+ p, len, len, qname->name);
+ break;
+ case 260:
+ result = p + WVAL(p, 0);
+ len = DVAL(p, 60);
+ if (len > 255) len = 255;
+ /* NT4 null terminates, unless we are using unicode ... */
+ qname->name = p + 94;
+ if (!unicode && len && qname->name[len-1] == '\0')
+ len--;
+
+ fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 8));
+ fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 16));
+ fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 24));
+ /* change time (32) */
+ fattr->f_size = LVAL(p, 40);
+ /* alloc size (48) */
+ fattr->attr = DVAL(p, 56);
+
+ VERBOSE("info 260 at %p, len=%d, name=%.*s\n",
+ p, len, len, qname->name);
+ break;
+ case SMB_FIND_FILE_UNIX:
+ result = p + WVAL(p, 0);
+ qname->name = p + 108;
+
+ len = strlen(qname->name);
+ /* FIXME: should we check the length?? */
+
+ p += 8;
+ smb_decode_unix_basic(fattr, server, p);
+ VERBOSE("info SMB_FIND_FILE_UNIX at %p, len=%d, name=%.*s\n",
+ p, len, len, qname->name);
+ break;
+ default:
+ PARANOIA("Unknown info level %d\n", level);
+ result = p + WVAL(p, 0);
+ goto out;
+ }
+
+ smb_finish_dirent(server, fattr);
+
+#if 0
+ /* FIXME: These only work for ascii chars, and recent smbmount doesn't
+ allow the flag to be set anyway. Remove? */
+ switch (server->opt.case_handling) {
+ case SMB_CASE_UPPER:
+ str_upper(qname->name, len);
+ break;
+ case SMB_CASE_LOWER:
+ str_lower(qname->name, len);
+ break;
+ default:
+ break;
+ }
+#endif
+
+ qname->len = 0;
+ n = server->ops->convert(name_buf, SMB_MAXNAMELEN,
+ qname->name, len,
+ server->remote_nls, server->local_nls);
+ if (n > 0) {
+ qname->len = n;
+ qname->name = name_buf;
+ }
+
+out:
+ return result;
+}
+
+/* findfirst/findnext flags */
+#define SMB_CLOSE_AFTER_FIRST (1<<0)
+#define SMB_CLOSE_IF_END (1<<1)
+#define SMB_REQUIRE_RESUME_KEY (1<<2)
+#define SMB_CONTINUE_BIT (1<<3)
+
+/*
+ * Note: samba-2.0.7 (at least) has a very similar routine, cli_list, in
+ * source/libsmb/clilist.c. When looking for smb bugs in the readdir code,
+ * go there for advise.
+ *
+ * Bugs Noted:
+ * (1) When using Info Level 1 Win NT 4.0 truncates directory listings
+ * for certain patterns of names and/or lengths. The breakage pattern
+ * is completely reproducible and can be toggled by the creation of a
+ * single file. (E.g. echo hi >foo breaks, rm -f foo works.)
+ */
+static int
+smb_proc_readdir_long(struct file *filp, void *dirent, filldir_t filldir,
+ struct smb_cache_control *ctl)
+{
+ struct dentry *dir = filp->f_path.dentry;
+ struct smb_sb_info *server = server_from_dentry(dir);
+ struct qstr qname;
+ struct smb_fattr fattr;
+
+ unsigned char *p, *lastname;
+ char *mask, *param;
+ __u16 command;
+ int first, entries_seen;
+
+ /* Both NT and OS/2 accept info level 1 (but see note below). */
+ int info_level = 260;
+ const int max_matches = 512;
+
+ unsigned int ff_searchcount = 0;
+ unsigned int ff_eos = 0;
+ unsigned int ff_lastname = 0;
+ unsigned int ff_dir_handle = 0;
+ unsigned int loop_count = 0;
+ unsigned int mask_len, i;
+ int result;
+ struct smb_request *req;
+ unsigned char *name_buf;
+ static struct qstr star = {
+ .name = "*",
+ .len = 1,
+ };
+
+ lock_kernel();
+
+ /*
+ * We always prefer unix style. Use info level 1 for older
+ * servers that don't do 260.
+ */
+ if (server->opt.capabilities & SMB_CAP_UNIX)
+ info_level = SMB_FIND_FILE_UNIX;
+ else if (server->opt.protocol < SMB_PROTOCOL_NT1)
+ info_level = 1;
+
+ result = -ENOMEM;
+ if (! (name_buf = kmalloc(SMB_MAXNAMELEN+2, GFP_KERNEL)))
+ goto out;
+ if (! (req = smb_alloc_request(server, server->opt.max_xmit)))
+ goto out_name;
+ param = req->rq_buffer;
+
+ /*
+ * Encode the initial path
+ */
+ mask = param + 12;
+
+ result = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dir, &star);
+ if (result <= 0)
+ goto out_free;
+ mask_len = result - 1; /* mask_len is strlen, not #bytes */
+ result = 0;
+ first = 1;
+ VERBOSE("starting mask_len=%d, mask=%s\n", mask_len, mask);
+
+ entries_seen = 2;
+ ff_eos = 0;
+
+ while (ff_eos == 0) {
+ loop_count += 1;
+ if (loop_count > 10) {
+ printk(KERN_WARNING "smb_proc_readdir_long: "
+ "Looping in FIND_NEXT??\n");
+ result = -EIO;
+ break;
+ }
+
+ if (first != 0) {
+ command = TRANSACT2_FINDFIRST;
+ WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
+ WSET(param, 2, max_matches); /* max count */
+ WSET(param, 4, SMB_CLOSE_IF_END);
+ WSET(param, 6, info_level);
+ DSET(param, 8, 0);
+ } else {
+ command = TRANSACT2_FINDNEXT;
+
+ VERBOSE("handle=0x%X, lastname=%d, mask=%.*s\n",
+ ff_dir_handle, ff_lastname, mask_len, mask);
+
+ WSET(param, 0, ff_dir_handle); /* search handle */
+ WSET(param, 2, max_matches); /* max count */
+ WSET(param, 4, info_level);
+ DSET(param, 6, 0);
+ WSET(param, 10, SMB_CONTINUE_BIT|SMB_CLOSE_IF_END);
+ }
+
+ req->rq_trans2_command = command;
+ req->rq_ldata = 0;
+ req->rq_data = NULL;
+ req->rq_lparm = 12 + mask_len + 1;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0) {
+ PARANOIA("error=%d, breaking\n", result);
+ break;
+ }
+
+ if (req->rq_rcls == ERRSRV && req->rq_err == ERRerror) {
+ /* a damn Win95 bug - sometimes it clags if you
+ ask it too fast */
+ schedule_timeout_interruptible(msecs_to_jiffies(200));
+ continue;
+ }
+
+ if (req->rq_rcls != 0) {
+ result = smb_errno(req);
+ PARANOIA("name=%s, result=%d, rcls=%d, err=%d\n",
+ mask, result, req->rq_rcls, req->rq_err);
+ break;
+ }
+
+ /* parse out some important return info */
+ if (first != 0) {
+ ff_dir_handle = WVAL(req->rq_parm, 0);
+ ff_searchcount = WVAL(req->rq_parm, 2);
+ ff_eos = WVAL(req->rq_parm, 4);
+ ff_lastname = WVAL(req->rq_parm, 8);
+ } else {
+ ff_searchcount = WVAL(req->rq_parm, 0);
+ ff_eos = WVAL(req->rq_parm, 2);
+ ff_lastname = WVAL(req->rq_parm, 6);
+ }
+
+ if (ff_searchcount == 0)
+ break;
+
+ /* Now we are ready to parse smb directory entries. */
+
+ /* point to the data bytes */
+ p = req->rq_data;
+ for (i = 0; i < ff_searchcount; i++) {
+ /* make sure we stay within the buffer */
+ if (p >= req->rq_data + req->rq_ldata) {
+ printk(KERN_ERR "smb_proc_readdir_long: "
+ "dirent pointer outside buffer! "
+ "%p %d@%p\n",
+ p, req->rq_ldata, req->rq_data);
+ result = -EIO; /* always a comm. error? */
+ goto out_free;
+ }
+
+ p = smb_decode_long_dirent(server, p, info_level,
+ &qname, &fattr, name_buf);
+
+ /* ignore . and .. from the server */
+ if (entries_seen == 2 && qname.name[0] == '.') {
+ if (qname.len == 1)
+ continue;
+ if (qname.name[1] == '.' && qname.len == 2)
+ continue;
+ }
+
+ if (!smb_fill_cache(filp, dirent, filldir, ctl,
+ &qname, &fattr))
+ ; /* stop reading? */
+ entries_seen++;
+ }
+
+ VERBOSE("received %d entries, eos=%d\n", ff_searchcount,ff_eos);
+
+ /*
+ * We might need the lastname for continuations.
+ *
+ * Note that some servers (win95?) point to the filename and
+ * others (NT4, Samba using NT1) to the dir entry. We assume
+ * here that those who do not point to a filename do not need
+ * this info to continue the listing.
+ *
+ * OS/2 needs this and talks infolevel 1.
+ * NetApps want lastname with infolevel 260.
+ * win2k want lastname with infolevel 260, and points to
+ * the record not to the name.
+ * Samba+CifsUnixExt doesn't need lastname.
+ *
+ * Both are happy if we return the data they point to. So we do.
+ * (FIXME: above is not true with win2k)
+ */
+ mask_len = 0;
+ if (info_level != SMB_FIND_FILE_UNIX &&
+ ff_lastname > 0 && ff_lastname < req->rq_ldata) {
+ lastname = req->rq_data + ff_lastname;
+
+ switch (info_level) {
+ case 260:
+ mask_len = req->rq_ldata - ff_lastname;
+ break;
+ case 1:
+ /* lastname points to a length byte */
+ mask_len = *lastname++;
+ if (ff_lastname + 1 + mask_len > req->rq_ldata)
+ mask_len = req->rq_ldata - ff_lastname - 1;
+ break;
+ }
+
+ /*
+ * Update the mask string for the next message.
+ */
+ if (mask_len > 255)
+ mask_len = 255;
+ if (mask_len)
+ strncpy(mask, lastname, mask_len);
+ }
+ mask_len = strnlen(mask, mask_len);
+ VERBOSE("new mask, len=%d@%d of %d, mask=%.*s\n",
+ mask_len, ff_lastname, req->rq_ldata, mask_len, mask);
+
+ first = 0;
+ loop_count = 0;
+ }
+
+out_free:
+ smb_rput(req);
+out_name:
+ kfree(name_buf);
+out:
+ unlock_kernel();
+ return result;
+}
+
+/*
+ * This version uses the trans2 TRANSACT2_FINDFIRST message
+ * to get the attribute data.
+ *
+ * Bugs Noted:
+ */
+static int
+smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
+ struct smb_fattr *fattr)
+{
+ char *param, *mask;
+ __u16 date, time;
+ int mask_len, result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+ param = req->rq_buffer;
+ mask = param + 12;
+
+ mask_len = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dentry,NULL);
+ if (mask_len < 0) {
+ result = mask_len;
+ goto out_free;
+ }
+ VERBOSE("name=%s, len=%d\n", mask, mask_len);
+ WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
+ WSET(param, 2, 1); /* max count */
+ WSET(param, 4, 1); /* close after this call */
+ WSET(param, 6, 1); /* info_level */
+ DSET(param, 8, 0);
+
+ req->rq_trans2_command = TRANSACT2_FINDFIRST;
+ req->rq_ldata = 0;
+ req->rq_data = NULL;
+ req->rq_lparm = 12 + mask_len;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+ if (req->rq_rcls != 0) {
+ result = smb_errno(req);
+#ifdef SMBFS_PARANOIA
+ if (result != -ENOENT)
+ PARANOIA("error for %s, rcls=%d, err=%d\n",
+ mask, req->rq_rcls, req->rq_err);
+#endif
+ goto out_free;
+ }
+ /* Make sure we got enough data ... */
+ result = -EINVAL;
+ if (req->rq_ldata < 22 || WVAL(req->rq_parm, 2) != 1) {
+ PARANOIA("bad result for %s, len=%d, count=%d\n",
+ mask, req->rq_ldata, WVAL(req->rq_parm, 2));
+ goto out_free;
+ }
+
+ /*
+ * Decode the response into the fattr ...
+ */
+ date = WVAL(req->rq_data, 0);
+ time = WVAL(req->rq_data, 2);
+ fattr->f_ctime.tv_sec = date_dos2unix(server, date, time);
+ fattr->f_ctime.tv_nsec = 0;
+
+ date = WVAL(req->rq_data, 4);
+ time = WVAL(req->rq_data, 6);
+ fattr->f_atime.tv_sec = date_dos2unix(server, date, time);
+ fattr->f_atime.tv_nsec = 0;
+
+ date = WVAL(req->rq_data, 8);
+ time = WVAL(req->rq_data, 10);
+ fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
+ fattr->f_mtime.tv_nsec = 0;
+ VERBOSE("name=%s, date=%x, time=%x, mtime=%ld\n",
+ mask, date, time, fattr->f_mtime.tv_sec);
+ fattr->f_size = DVAL(req->rq_data, 12);
+ /* ULONG allocation size */
+ fattr->attr = WVAL(req->rq_data, 20);
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *fattr)
+{
+ int result;
+ char *p;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ p = smb_setup_header(req, SMBgetatr, 0, 0);
+ result = smb_simple_encode_path(req, &p, dir, NULL);
+ if (result < 0)
+ goto out_free;
+ smb_setup_bcc(req, p);
+
+ if ((result = smb_request_ok(req, SMBgetatr, 10, 0)) < 0)
+ goto out_free;
+ fattr->attr = WVAL(req->rq_header, smb_vwv0);
+ fattr->f_mtime.tv_sec = local2utc(server, DVAL(req->rq_header, smb_vwv1));
+ fattr->f_mtime.tv_nsec = 0;
+ fattr->f_size = DVAL(req->rq_header, smb_vwv3);
+ fattr->f_ctime = fattr->f_mtime;
+ fattr->f_atime = fattr->f_mtime;
+#ifdef SMBFS_DEBUG_TIMESTAMP
+ printk("getattr_core: %s/%s, mtime=%ld\n",
+ DENTRY_PATH(dir), fattr->f_mtime);
+#endif
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * Bugs Noted:
+ * (1) Win 95 swaps the date and time fields in the standard info level.
+ */
+static int
+smb_proc_getattr_trans2(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_request *req, int infolevel)
+{
+ char *p, *param;
+ int result;
+
+ param = req->rq_buffer;
+ WSET(param, 0, infolevel);
+ DSET(param, 2, 0);
+ result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+ if (result < 0)
+ goto out;
+ p = param + 6 + result;
+
+ req->rq_trans2_command = TRANSACT2_QPATHINFO;
+ req->rq_ldata = 0;
+ req->rq_data = NULL;
+ req->rq_lparm = p - param;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out;
+ if (req->rq_rcls != 0) {
+ VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+ ¶m[6], result, req->rq_rcls, req->rq_err);
+ result = smb_errno(req);
+ goto out;
+ }
+ result = -ENOENT;
+ if (req->rq_ldata < 22) {
+ PARANOIA("not enough data for %s, len=%d\n",
+ ¶m[6], req->rq_ldata);
+ goto out;
+ }
+
+ result = 0;
+out:
+ return result;
+}
+
+static int
+smb_proc_getattr_trans2_std(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *attr)
+{
+ u16 date, time;
+ int off_date = 0, off_time = 2;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ result = smb_proc_getattr_trans2(server, dir, req, SMB_INFO_STANDARD);
+ if (result < 0)
+ goto out_free;
+
+ /*
+ * Kludge alert: Win 95 swaps the date and time field,
+ * contrary to the CIFS docs and Win NT practice.
+ */
+ if (server->mnt->flags & SMB_MOUNT_WIN95) {
+ off_date = 2;
+ off_time = 0;
+ }
+ date = WVAL(req->rq_data, off_date);
+ time = WVAL(req->rq_data, off_time);
+ attr->f_ctime.tv_sec = date_dos2unix(server, date, time);
+ attr->f_ctime.tv_nsec = 0;
+
+ date = WVAL(req->rq_data, 4 + off_date);
+ time = WVAL(req->rq_data, 4 + off_time);
+ attr->f_atime.tv_sec = date_dos2unix(server, date, time);
+ attr->f_atime.tv_nsec = 0;
+
+ date = WVAL(req->rq_data, 8 + off_date);
+ time = WVAL(req->rq_data, 8 + off_time);
+ attr->f_mtime.tv_sec = date_dos2unix(server, date, time);
+ attr->f_mtime.tv_nsec = 0;
+#ifdef SMBFS_DEBUG_TIMESTAMP
+ printk(KERN_DEBUG "getattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n",
+ DENTRY_PATH(dir), date, time, attr->f_mtime);
+#endif
+ attr->f_size = DVAL(req->rq_data, 12);
+ attr->attr = WVAL(req->rq_data, 20);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_getattr_trans2_all(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *attr)
+{
+ struct smb_request *req;
+ int result;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ result = smb_proc_getattr_trans2(server, dir, req,
+ SMB_QUERY_FILE_ALL_INFO);
+ if (result < 0)
+ goto out_free;
+
+ attr->f_ctime = smb_ntutc2unixutc(LVAL(req->rq_data, 0));
+ attr->f_atime = smb_ntutc2unixutc(LVAL(req->rq_data, 8));
+ attr->f_mtime = smb_ntutc2unixutc(LVAL(req->rq_data, 16));
+ /* change (24) */
+ attr->attr = WVAL(req->rq_data, 32);
+ /* pad? (34) */
+ /* allocated size (40) */
+ attr->f_size = LVAL(req->rq_data, 48);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_getattr_unix(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *attr)
+{
+ struct smb_request *req;
+ int result;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ result = smb_proc_getattr_trans2(server, dir, req,
+ SMB_QUERY_FILE_UNIX_BASIC);
+ if (result < 0)
+ goto out_free;
+
+ smb_decode_unix_basic(attr, server, req->rq_data);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_getattr_95(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *attr)
+{
+ struct inode *inode = dir->d_inode;
+ int result;
+
+ /* FIXME: why not use the "all" version? */
+ result = smb_proc_getattr_trans2_std(server, dir, attr);
+ if (result < 0)
+ goto out;
+
+ /*
+ * None of the getattr versions here can make win9x return the right
+ * filesize if there are changes made to an open file.
+ * A seek-to-end does return the right size, but we only need to do
+ * that on files we have written.
+ */
+ if (inode && SMB_I(inode)->flags & SMB_F_LOCALWRITE &&
+ smb_is_open(inode))
+ {
+ __u16 fileid = SMB_I(inode)->fileid;
+ attr->f_size = smb_proc_seek(server, fileid, 2, 0);
+ }
+
+out:
+ return result;
+}
+
+static int
+smb_proc_ops_wait(struct smb_sb_info *server)
+{
+ int result;
+
+ result = wait_event_interruptible_timeout(server->conn_wq,
+ server->conn_complete, 30*HZ);
+
+ if (!result || signal_pending(current))
+ return -EIO;
+
+ return 0;
+}
+
+static int
+smb_proc_getattr_null(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *fattr)
+{
+ int result;
+
+ if (smb_proc_ops_wait(server) < 0)
+ return -EIO;
+
+ smb_init_dirent(server, fattr);
+ result = server->ops->getattr(server, dir, fattr);
+ smb_finish_dirent(server, fattr);
+
+ return result;
+}
+
+static int
+smb_proc_readdir_null(struct file *filp, void *dirent, filldir_t filldir,
+ struct smb_cache_control *ctl)
+{
+ struct smb_sb_info *server = server_from_dentry(filp->f_path.dentry);
+
+ if (smb_proc_ops_wait(server) < 0)
+ return -EIO;
+
+ return server->ops->readdir(filp, dirent, filldir, ctl);
+}
+
+int
+smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr)
+{
+ struct smb_sb_info *server = server_from_dentry(dir);
+ int result;
+
+ smb_init_dirent(server, fattr);
+ result = server->ops->getattr(server, dir, fattr);
+ smb_finish_dirent(server, fattr);
+
+ return result;
+}
+
+
+/*
+ * Because of bugs in the core protocol, we use this only to set
+ * attributes. See smb_proc_settime() below for timestamp handling.
+ *
+ * Bugs Noted:
+ * (1) If mtime is non-zero, both Win 3.1 and Win 95 fail
+ * with an undocumented error (ERRDOS code 50). Setting
+ * mtime to 0 allows the attributes to be set.
+ * (2) The extra parameters following the name string aren't
+ * in the CIFS docs, but seem to be necessary for operation.
+ */
+static int
+smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
+ __u16 attr)
+{
+ char *p;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+
+ p = smb_setup_header(req, SMBsetatr, 8, 0);
+ WSET(req->rq_header, smb_vwv0, attr);
+ DSET(req->rq_header, smb_vwv1, 0); /* mtime */
+ WSET(req->rq_header, smb_vwv3, 0); /* reserved values */
+ WSET(req->rq_header, smb_vwv4, 0);
+ WSET(req->rq_header, smb_vwv5, 0);
+ WSET(req->rq_header, smb_vwv6, 0);
+ WSET(req->rq_header, smb_vwv7, 0);
+ result = smb_simple_encode_path(req, &p, dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ if (p + 2 > (char *)req->rq_buffer + req->rq_bufsize) {
+ result = -ENAMETOOLONG;
+ goto out_free;
+ }
+ *p++ = 4;
+ *p++ = 0;
+ smb_setup_bcc(req, p);
+
+ result = smb_request_ok(req, SMBsetatr, 0, 0);
+ if (result < 0)
+ goto out_free;
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * Because of bugs in the trans2 setattr messages, we must set
+ * attributes and timestamps separately. The core SMBsetatr
+ * message seems to be the only reliable way to set attributes.
+ */
+int
+smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr)
+{
+ struct smb_sb_info *server = server_from_dentry(dir);
+ int result;
+
+ VERBOSE("setting %s/%s, open=%d\n",
+ DENTRY_PATH(dir), smb_is_open(dir->d_inode));
+ result = smb_proc_setattr_core(server, dir, fattr->attr);
+ return result;
+}
+
+/*
+ * Sets the timestamps for an file open with write permissions.
+ */
+static int
+smb_proc_setattr_ext(struct smb_sb_info *server,
+ struct inode *inode, struct smb_fattr *fattr)
+{
+ __u16 date, time;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBsetattrE, 7, 0);
+ WSET(req->rq_header, smb_vwv0, SMB_I(inode)->fileid);
+ /* We don't change the creation time */
+ WSET(req->rq_header, smb_vwv1, 0);
+ WSET(req->rq_header, smb_vwv2, 0);
+ date_unix2dos(server, fattr->f_atime.tv_sec, &date, &time);
+ WSET(req->rq_header, smb_vwv3, date);
+ WSET(req->rq_header, smb_vwv4, time);
+ date_unix2dos(server, fattr->f_mtime.tv_sec, &date, &time);
+ WSET(req->rq_header, smb_vwv5, date);
+ WSET(req->rq_header, smb_vwv6, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+ printk(KERN_DEBUG "smb_proc_setattr_ext: date=%d, time=%d, mtime=%ld\n",
+ date, time, fattr->f_mtime);
+#endif
+
+ req->rq_flags |= SMB_REQ_NORETRY;
+ result = smb_request_ok(req, SMBsetattrE, 0, 0);
+ if (result < 0)
+ goto out_free;
+ result = 0;
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * Bugs Noted:
+ * (1) The TRANSACT2_SETPATHINFO message under Win NT 4.0 doesn't
+ * set the file's attribute flags.
+ */
+static int
+smb_proc_setattr_trans2(struct smb_sb_info *server,
+ struct dentry *dir, struct smb_fattr *fattr)
+{
+ __u16 date, time;
+ char *p, *param;
+ int result;
+ char data[26];
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+ param = req->rq_buffer;
+
+ WSET(param, 0, 1); /* Info level SMB_INFO_STANDARD */
+ DSET(param, 2, 0);
+ result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+ if (result < 0)
+ goto out_free;
+ p = param + 6 + result;
+
+ WSET(data, 0, 0); /* creation time */
+ WSET(data, 2, 0);
+ date_unix2dos(server, fattr->f_atime.tv_sec, &date, &time);
+ WSET(data, 4, date);
+ WSET(data, 6, time);
+ date_unix2dos(server, fattr->f_mtime.tv_sec, &date, &time);
+ WSET(data, 8, date);
+ WSET(data, 10, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+ printk(KERN_DEBUG "setattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n",
+ DENTRY_PATH(dir), date, time, fattr->f_mtime);
+#endif
+ DSET(data, 12, 0); /* size */
+ DSET(data, 16, 0); /* blksize */
+ WSET(data, 20, 0); /* attr */
+ DSET(data, 22, 0); /* ULONG EA size */
+
+ req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+ req->rq_ldata = 26;
+ req->rq_data = data;
+ req->rq_lparm = p - param;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+ result = 0;
+ if (req->rq_rcls != 0)
+ result = smb_errno(req);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * ATTR_MODE 0x001
+ * ATTR_UID 0x002
+ * ATTR_GID 0x004
+ * ATTR_SIZE 0x008
+ * ATTR_ATIME 0x010
+ * ATTR_MTIME 0x020
+ * ATTR_CTIME 0x040
+ * ATTR_ATIME_SET 0x080
+ * ATTR_MTIME_SET 0x100
+ * ATTR_FORCE 0x200
+ * ATTR_ATTR_FLAG 0x400
+ *
+ * major/minor should only be set by mknod.
+ */
+int
+smb_proc_setattr_unix(struct dentry *d, struct iattr *attr,
+ unsigned int major, unsigned int minor)
+{
+ struct smb_sb_info *server = server_from_dentry(d);
+ u64 nttime;
+ char *p, *param;
+ int result;
+ char data[100];
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+ param = req->rq_buffer;
+
+ DEBUG1("valid flags = 0x%04x\n", attr->ia_valid);
+
+ WSET(param, 0, SMB_SET_FILE_UNIX_BASIC);
+ DSET(param, 2, 0);
+ result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, d, NULL);
+ if (result < 0)
+ goto out_free;
+ p = param + 6 + result;
+
+ /* 0 L file size in bytes */
+ /* 8 L file size on disk in bytes (block count) */
+ /* 40 L uid */
+ /* 48 L gid */
+ /* 56 W file type enum */
+ /* 60 L devmajor */
+ /* 68 L devminor */
+ /* 76 L unique ID (inode) */
+ /* 84 L permissions */
+ /* 92 L link count */
+ LSET(data, 0, SMB_SIZE_NO_CHANGE);
+ LSET(data, 8, SMB_SIZE_NO_CHANGE);
+ LSET(data, 16, SMB_TIME_NO_CHANGE);
+ LSET(data, 24, SMB_TIME_NO_CHANGE);
+ LSET(data, 32, SMB_TIME_NO_CHANGE);
+ LSET(data, 40, SMB_UID_NO_CHANGE);
+ LSET(data, 48, SMB_GID_NO_CHANGE);
+ DSET(data, 56, smb_filetype_from_mode(attr->ia_mode));
+ LSET(data, 60, major);
+ LSET(data, 68, minor);
+ LSET(data, 76, 0);
+ LSET(data, 84, SMB_MODE_NO_CHANGE);
+ LSET(data, 92, 0);
+
+ if (attr->ia_valid & ATTR_SIZE) {
+ LSET(data, 0, attr->ia_size);
+ LSET(data, 8, 0); /* can't set anyway */
+ }
+
+ /*
+ * FIXME: check the conversion function it the correct one
+ *
+ * we can't set ctime but we might as well pass this to the server
+ * and let it ignore it.
+ */
+ if (attr->ia_valid & ATTR_CTIME) {
+ nttime = smb_unixutc2ntutc(attr->ia_ctime);
+ LSET(data, 16, nttime);
+ }
+ if (attr->ia_valid & ATTR_ATIME) {
+ nttime = smb_unixutc2ntutc(attr->ia_atime);
+ LSET(data, 24, nttime);
+ }
+ if (attr->ia_valid & ATTR_MTIME) {
+ nttime = smb_unixutc2ntutc(attr->ia_mtime);
+ LSET(data, 32, nttime);
+ }
+
+ if (attr->ia_valid & ATTR_UID) {
+ LSET(data, 40, attr->ia_uid);
+ }
+ if (attr->ia_valid & ATTR_GID) {
+ LSET(data, 48, attr->ia_gid);
+ }
+
+ if (attr->ia_valid & ATTR_MODE) {
+ LSET(data, 84, attr->ia_mode);
+ }
+
+ req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+ req->rq_ldata = 100;
+ req->rq_data = data;
+ req->rq_lparm = p - param;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+
+/*
+ * Set the modify and access timestamps for a file.
+ *
+ * Incredibly enough, in all of SMB there is no message to allow
+ * setting both attributes and timestamps at once.
+ *
+ * Bugs Noted:
+ * (1) Win 95 doesn't support the TRANSACT2_SETFILEINFO message
+ * with info level 1 (INFO_STANDARD).
+ * (2) Win 95 seems not to support setting directory timestamps.
+ * (3) Under the core protocol apparently the only way to set the
+ * timestamp is to open and close the file.
+ */
+int
+smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr)
+{
+ struct smb_sb_info *server = server_from_dentry(dentry);
+ struct inode *inode = dentry->d_inode;
+ int result;
+
+ VERBOSE("setting %s/%s, open=%d\n",
+ DENTRY_PATH(dentry), smb_is_open(inode));
+
+ /* setting the time on a Win95 server fails (tridge) */
+ if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2 &&
+ !(server->mnt->flags & SMB_MOUNT_WIN95)) {
+ if (smb_is_open(inode) && SMB_I(inode)->access != SMB_O_RDONLY)
+ result = smb_proc_setattr_ext(server, inode, fattr);
+ else
+ result = smb_proc_setattr_trans2(server, dentry, fattr);
+ } else {
+ /*
+ * Fail silently on directories ... timestamp can't be set?
+ */
+ result = 0;
+ if (S_ISREG(inode->i_mode)) {
+ /*
+ * Set the mtime by opening and closing the file.
+ * Note that the file is opened read-only, but this
+ * still allows us to set the date (tridge)
+ */
+ result = -EACCES;
+ if (!smb_is_open(inode))
+ smb_proc_open(server, dentry, SMB_O_RDONLY);
+ if (smb_is_open(inode)) {
+ inode->i_mtime = fattr->f_mtime;
+ result = smb_proc_close_inode(server, inode);
+ }
+ }
+ }
+
+ return result;
+}
+
+int
+smb_proc_dskattr(struct dentry *dentry, struct kstatfs *attr)
+{
+ struct smb_sb_info *server = SMB_SB(dentry->d_sb);
+ int result;
+ char *p;
+ long unit;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 0)))
+ goto out;
+
+ smb_setup_header(req, SMBdskattr, 0, 0);
+ if ((result = smb_request_ok(req, SMBdskattr, 5, 0)) < 0)
+ goto out_free;
+ p = SMB_VWV(req->rq_header);
+ unit = (WVAL(p, 2) * WVAL(p, 4)) >> SMB_ST_BLKSHIFT;
+ attr->f_blocks = WVAL(p, 0) * unit;
+ attr->f_bsize = SMB_ST_BLKSIZE;
+ attr->f_bavail = attr->f_bfree = WVAL(p, 6) * unit;
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+int
+smb_proc_read_link(struct smb_sb_info *server, struct dentry *d,
+ char *buffer, int len)
+{
+ char *p, *param;
+ int result;
+ struct smb_request *req;
+
+ DEBUG1("readlink of %s/%s\n", DENTRY_PATH(d));
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+ param = req->rq_buffer;
+
+ WSET(param, 0, SMB_QUERY_FILE_UNIX_LINK);
+ DSET(param, 2, 0);
+ result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, d, NULL);
+ if (result < 0)
+ goto out_free;
+ p = param + 6 + result;
+
+ req->rq_trans2_command = TRANSACT2_QPATHINFO;
+ req->rq_ldata = 0;
+ req->rq_data = NULL;
+ req->rq_lparm = p - param;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+ DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+ ¶m[6], result, req->rq_rcls, req->rq_err);
+
+ /* copy data up to the \0 or buffer length */
+ result = len;
+ if (req->rq_ldata < len)
+ result = req->rq_ldata;
+ strncpy(buffer, req->rq_data, result);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+
+/*
+ * Create a symlink object called dentry which points to oldpath.
+ * Samba does not permit dangling links but returns a suitable error message.
+ */
+int
+smb_proc_symlink(struct smb_sb_info *server, struct dentry *d,
+ const char *oldpath)
+{
+ char *p, *param;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+ param = req->rq_buffer;
+
+ WSET(param, 0, SMB_SET_FILE_UNIX_LINK);
+ DSET(param, 2, 0);
+ result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, d, NULL);
+ if (result < 0)
+ goto out_free;
+ p = param + 6 + result;
+
+ req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+ req->rq_ldata = strlen(oldpath) + 1;
+ req->rq_data = (char *) oldpath;
+ req->rq_lparm = p - param;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+
+ DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+ ¶m[6], result, req->rq_rcls, req->rq_err);
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+/*
+ * Create a hard link object called new_dentry which points to dentry.
+ */
+int
+smb_proc_link(struct smb_sb_info *server, struct dentry *dentry,
+ struct dentry *new_dentry)
+{
+ char *p, *param;
+ int result;
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+ goto out;
+ param = req->rq_buffer;
+
+ WSET(param, 0, SMB_SET_FILE_UNIX_HLINK);
+ DSET(param, 2, 0);
+ result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1,
+ new_dentry, NULL);
+ if (result < 0)
+ goto out_free;
+ p = param + 6 + result;
+
+ /* Grr, pointless separation of parameters and data ... */
+ req->rq_data = p;
+ req->rq_ldata = smb_encode_path(server, p, SMB_MAXPATHLEN+1,
+ dentry, NULL);
+
+ req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+ req->rq_lparm = p - param;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+
+ DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+ ¶m[6], result, req->rq_rcls, req->rq_err);
+ result = 0;
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+static int
+smb_proc_query_cifsunix(struct smb_sb_info *server)
+{
+ int result;
+ int major, minor;
+ u64 caps;
+ char param[2];
+ struct smb_request *req;
+
+ result = -ENOMEM;
+ if (! (req = smb_alloc_request(server, 100)))
+ goto out;
+
+ WSET(param, 0, SMB_QUERY_CIFS_UNIX_INFO);
+
+ req->rq_trans2_command = TRANSACT2_QFSINFO;
+ req->rq_ldata = 0;
+ req->rq_data = NULL;
+ req->rq_lparm = 2;
+ req->rq_parm = param;
+ req->rq_flags = 0;
+ result = smb_add_request(req);
+ if (result < 0)
+ goto out_free;
+
+ if (req->rq_ldata < 12) {
+ PARANOIA("Not enough data\n");
+ goto out_free;
+ }
+ major = WVAL(req->rq_data, 0);
+ minor = WVAL(req->rq_data, 2);
+
+ DEBUG1("Server implements CIFS Extensions for UNIX systems v%d.%d\n",
+ major, minor);
+ /* FIXME: verify that we are ok with this major/minor? */
+
+ caps = LVAL(req->rq_data, 4);
+ DEBUG1("Server capabilities 0x%016llx\n", caps);
+
+out_free:
+ smb_rput(req);
+out:
+ return result;
+}
+
+
+static void
+install_ops(struct smb_ops *dst, struct smb_ops *src)
+{
+ memcpy(dst, src, sizeof(void *) * SMB_OPS_NUM_STATIC);
+}
+
+/* < LANMAN2 */
+static struct smb_ops smb_ops_core =
+{
+ .read = smb_proc_read,
+ .write = smb_proc_write,
+ .readdir = smb_proc_readdir_short,
+ .getattr = smb_proc_getattr_core,
+ .truncate = smb_proc_trunc32,
+};
+
+/* LANMAN2, OS/2, others? */
+static struct smb_ops smb_ops_os2 =
+{
+ .read = smb_proc_read,
+ .write = smb_proc_write,
+ .readdir = smb_proc_readdir_long,
+ .getattr = smb_proc_getattr_trans2_std,
+ .truncate = smb_proc_trunc32,
+};
+
+/* Win95, and possibly some NetApp versions too */
+static struct smb_ops smb_ops_win95 =
+{
+ .read = smb_proc_read, /* does not support 12word readX */
+ .write = smb_proc_write,
+ .readdir = smb_proc_readdir_long,
+ .getattr = smb_proc_getattr_95,
+ .truncate = smb_proc_trunc95,
+};
+
+/* Samba, NT4 and NT5 */
+static struct smb_ops smb_ops_winNT =
+{
+ .read = smb_proc_readX,
+ .write = smb_proc_writeX,
+ .readdir = smb_proc_readdir_long,
+ .getattr = smb_proc_getattr_trans2_all,
+ .truncate = smb_proc_trunc64,
+};
+
+/* Samba w/ unix extensions. Others? */
+static struct smb_ops smb_ops_unix =
+{
+ .read = smb_proc_readX,
+ .write = smb_proc_writeX,
+ .readdir = smb_proc_readdir_long,
+ .getattr = smb_proc_getattr_unix,
+ /* FIXME: core/ext/time setattr needs to be cleaned up! */
+ /* .setattr = smb_proc_setattr_unix, */
+ .truncate = smb_proc_trunc64,
+};
+
+/* Place holder until real ops are in place */
+static struct smb_ops smb_ops_null =
+{
+ .readdir = smb_proc_readdir_null,
+ .getattr = smb_proc_getattr_null,
+};
+
+void smb_install_null_ops(struct smb_ops *ops)
+{
+ install_ops(ops, &smb_ops_null);
+}
--- /dev/null
+/*
+ * Autogenerated with cproto on: Sat Sep 13 17:18:51 CEST 2003
+ */
+
+struct smb_request;
+struct sock;
+struct statfs;
+
+/* proc.c */
+extern int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp);
+extern __u32 smb_len(__u8 *p);
+extern int smb_get_rsize(struct smb_sb_info *server);
+extern int smb_get_wsize(struct smb_sb_info *server);
+extern int smb_errno(struct smb_request *req);
+extern int smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt);
+extern __u8 *smb_setup_header(struct smb_request *req, __u8 command, __u16 wct, __u16 bcc);
+extern int smb_open(struct dentry *dentry, int wish);
+extern int smb_close(struct inode *ino);
+extern int smb_close_fileid(struct dentry *dentry, __u16 fileid);
+extern int smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid);
+extern int smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry);
+extern int smb_proc_mkdir(struct dentry *dentry);
+extern int smb_proc_rmdir(struct dentry *dentry);
+extern int smb_proc_unlink(struct dentry *dentry);
+extern int smb_proc_flush(struct smb_sb_info *server, __u16 fileid);
+extern void smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr,
+ struct super_block *sb);
+extern int smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr);
+extern int smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr);
+extern int smb_proc_setattr_unix(struct dentry *d, struct iattr *attr, unsigned int major, unsigned int minor);
+extern int smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr);
+extern int smb_proc_dskattr(struct dentry *dentry, struct kstatfs *attr);
+extern int smb_proc_read_link(struct smb_sb_info *server, struct dentry *d, char *buffer, int len);
+extern int smb_proc_symlink(struct smb_sb_info *server, struct dentry *d, const char *oldpath);
+extern int smb_proc_link(struct smb_sb_info *server, struct dentry *dentry, struct dentry *new_dentry);
+extern void smb_install_null_ops(struct smb_ops *ops);
+/* dir.c */
+extern const struct file_operations smb_dir_operations;
+extern const struct inode_operations smb_dir_inode_operations;
+extern const struct inode_operations smb_dir_inode_operations_unix;
+extern void smb_new_dentry(struct dentry *dentry);
+extern void smb_renew_times(struct dentry *dentry);
+/* cache.c */
+extern void smb_invalid_dir_cache(struct inode *dir);
+extern void smb_invalidate_dircache_entries(struct dentry *parent);
+extern struct dentry *smb_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos);
+extern int smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir, struct smb_cache_control *ctrl, struct qstr *qname, struct smb_fattr *entry);
+/* sock.c */
+extern void smb_data_ready(struct sock *sk, int len);
+extern int smb_valid_socket(struct inode *inode);
+extern void smb_close_socket(struct smb_sb_info *server);
+extern int smb_recv_available(struct smb_sb_info *server);
+extern int smb_receive_header(struct smb_sb_info *server);
+extern int smb_receive_drop(struct smb_sb_info *server);
+extern int smb_receive(struct smb_sb_info *server, struct smb_request *req);
+extern int smb_send_request(struct smb_request *req);
+/* inode.c */
+extern struct inode *smb_iget(struct super_block *sb, struct smb_fattr *fattr);
+extern void smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr);
+extern void smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr);
+extern void smb_invalidate_inodes(struct smb_sb_info *server);
+extern int smb_revalidate_inode(struct dentry *dentry);
+extern int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
+extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
+/* file.c */
+extern const struct address_space_operations smb_file_aops;
+extern const struct file_operations smb_file_operations;
+extern const struct inode_operations smb_file_inode_operations;
+/* ioctl.c */
+extern long smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+/* smbiod.c */
+extern void smbiod_wake_up(void);
+extern int smbiod_register_server(struct smb_sb_info *server);
+extern void smbiod_unregister_server(struct smb_sb_info *server);
+extern void smbiod_flush(struct smb_sb_info *server);
+extern int smbiod_retry(struct smb_sb_info *server);
+/* request.c */
+extern int smb_init_request_cache(void);
+extern void smb_destroy_request_cache(void);
+extern struct smb_request *smb_alloc_request(struct smb_sb_info *server, int bufsize);
+extern void smb_rput(struct smb_request *req);
+extern int smb_add_request(struct smb_request *req);
+extern int smb_request_send_server(struct smb_sb_info *server);
+extern int smb_request_recv(struct smb_sb_info *server);
+/* symlink.c */
+extern int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname);
+extern const struct inode_operations smb_link_inode_operations;
--- /dev/null
+/*
+ * request.c
+ *
+ * Copyright (C) 2001 by Urban Widmark
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/net.h>
+#include <linux/sched.h>
+
+#include "smb_fs.h"
+#include "smbno.h"
+#include "smb_mount.h"
+#include "smb_debug.h"
+#include "request.h"
+#include "proto.h"
+
+/* #define SMB_SLAB_DEBUG (SLAB_RED_ZONE | SLAB_POISON) */
+#define SMB_SLAB_DEBUG 0
+
+/* cache for request structures */
+static struct kmem_cache *req_cachep;
+
+static int smb_request_send_req(struct smb_request *req);
+
+/*
+ /proc/slabinfo:
+ name, active, num, objsize, active_slabs, num_slaps, #pages
+*/
+
+
+int smb_init_request_cache(void)
+{
+ req_cachep = kmem_cache_create("smb_request",
+ sizeof(struct smb_request), 0,
+ SMB_SLAB_DEBUG | SLAB_HWCACHE_ALIGN,
+ NULL);
+ if (req_cachep == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void smb_destroy_request_cache(void)
+{
+ kmem_cache_destroy(req_cachep);
+}
+
+/*
+ * Allocate and initialise a request structure
+ */
+static struct smb_request *smb_do_alloc_request(struct smb_sb_info *server,
+ int bufsize)
+{
+ struct smb_request *req;
+ unsigned char *buf = NULL;
+
+ req = kmem_cache_zalloc(req_cachep, GFP_KERNEL);
+ VERBOSE("allocating request: %p\n", req);
+ if (!req)
+ goto out;
+
+ if (bufsize > 0) {
+ buf = kmalloc(bufsize, GFP_NOFS);
+ if (!buf) {
+ kmem_cache_free(req_cachep, req);
+ return NULL;
+ }
+ }
+
+ req->rq_buffer = buf;
+ req->rq_bufsize = bufsize;
+ req->rq_server = server;
+ init_waitqueue_head(&req->rq_wait);
+ INIT_LIST_HEAD(&req->rq_queue);
+ atomic_set(&req->rq_count, 1);
+
+out:
+ return req;
+}
+
+struct smb_request *smb_alloc_request(struct smb_sb_info *server, int bufsize)
+{
+ struct smb_request *req = NULL;
+
+ for (;;) {
+ atomic_inc(&server->nr_requests);
+ if (atomic_read(&server->nr_requests) <= MAX_REQUEST_HARD) {
+ req = smb_do_alloc_request(server, bufsize);
+ if (req != NULL)
+ break;
+ }
+
+#if 0
+ /*
+ * Try to free up at least one request in order to stay
+ * below the hard limit
+ */
+ if (nfs_try_to_free_pages(server))
+ continue;
+
+ if (fatal_signal_pending(current))
+ return ERR_PTR(-ERESTARTSYS);
+ current->policy = SCHED_YIELD;
+ schedule();
+#else
+ /* FIXME: we want something like nfs does above, but that
+ requires changes to all callers and can wait. */
+ break;
+#endif
+ }
+ return req;
+}
+
+static void smb_free_request(struct smb_request *req)
+{
+ atomic_dec(&req->rq_server->nr_requests);
+ if (req->rq_buffer && !(req->rq_flags & SMB_REQ_STATIC))
+ kfree(req->rq_buffer);
+ kfree(req->rq_trans2buffer);
+ kmem_cache_free(req_cachep, req);
+}
+
+/*
+ * What prevents a rget to race with a rput? The count must never drop to zero
+ * while it is in use. Only rput if it is ok that it is free'd.
+ */
+static void smb_rget(struct smb_request *req)
+{
+ atomic_inc(&req->rq_count);
+}
+void smb_rput(struct smb_request *req)
+{
+ if (atomic_dec_and_test(&req->rq_count)) {
+ list_del_init(&req->rq_queue);
+ smb_free_request(req);
+ }
+}
+
+/* setup to receive the data part of the SMB */
+static int smb_setup_bcc(struct smb_request *req)
+{
+ int result = 0;
+ req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
+
+ if (req->rq_rlen > req->rq_bufsize) {
+ PARANOIA("Packet too large %d > %d\n",
+ req->rq_rlen, req->rq_bufsize);
+ return -ENOBUFS;
+ }
+
+ req->rq_iov[0].iov_base = req->rq_buffer;
+ req->rq_iov[0].iov_len = req->rq_rlen;
+ req->rq_iovlen = 1;
+
+ return result;
+}
+
+/*
+ * Prepare a "normal" request structure.
+ */
+static int smb_setup_request(struct smb_request *req)
+{
+ int len = smb_len(req->rq_header) + 4;
+ req->rq_slen = len;
+
+ /* if we expect a data part in the reply we set the iov's to read it */
+ if (req->rq_resp_bcc)
+ req->rq_setup_read = smb_setup_bcc;
+
+ /* This tries to support re-using the same request */
+ req->rq_bytes_sent = 0;
+ req->rq_rcls = 0;
+ req->rq_err = 0;
+ req->rq_errno = 0;
+ req->rq_fragment = 0;
+ kfree(req->rq_trans2buffer);
+ req->rq_trans2buffer = NULL;
+
+ return 0;
+}
+
+/*
+ * Prepare a transaction2 request structure
+ */
+static int smb_setup_trans2request(struct smb_request *req)
+{
+ struct smb_sb_info *server = req->rq_server;
+ int mparam, mdata;
+ static unsigned char padding[4];
+
+ /* I know the following is very ugly, but I want to build the
+ smb packet as efficiently as possible. */
+
+ const int smb_parameters = 15;
+ const int header = SMB_HEADER_LEN + 2 * smb_parameters + 2;
+ const int oparam = ALIGN(header + 3, sizeof(u32));
+ const int odata = ALIGN(oparam + req->rq_lparm, sizeof(u32));
+ const int bcc = (req->rq_data ? odata + req->rq_ldata :
+ oparam + req->rq_lparm) - header;
+
+ if ((bcc + oparam) > server->opt.max_xmit)
+ return -ENOMEM;
+ smb_setup_header(req, SMBtrans2, smb_parameters, bcc);
+
+ /*
+ * max parameters + max data + max setup == bufsize to make NT4 happy
+ * and not abort the transfer or split into multiple responses. It also
+ * makes smbfs happy as handling packets larger than the buffer size
+ * is extra work.
+ *
+ * OS/2 is probably going to hate me for this ...
+ */
+ mparam = SMB_TRANS2_MAX_PARAM;
+ mdata = req->rq_bufsize - mparam;
+
+ mdata = server->opt.max_xmit - mparam - 100;
+ if (mdata < 1024) {
+ mdata = 1024;
+ mparam = 20;
+ }
+
+#if 0
+ /* NT/win2k has ~4k max_xmit, so with this we request more than it wants
+ to return as one SMB. Useful for testing the fragmented trans2
+ handling. */
+ mdata = 8192;
+#endif
+
+ WSET(req->rq_header, smb_tpscnt, req->rq_lparm);
+ WSET(req->rq_header, smb_tdscnt, req->rq_ldata);
+ WSET(req->rq_header, smb_mprcnt, mparam);
+ WSET(req->rq_header, smb_mdrcnt, mdata);
+ WSET(req->rq_header, smb_msrcnt, 0); /* max setup always 0 ? */
+ WSET(req->rq_header, smb_flags, 0);
+ DSET(req->rq_header, smb_timeout, 0);
+ WSET(req->rq_header, smb_pscnt, req->rq_lparm);
+ WSET(req->rq_header, smb_psoff, oparam - 4);
+ WSET(req->rq_header, smb_dscnt, req->rq_ldata);
+ WSET(req->rq_header, smb_dsoff, req->rq_data ? odata - 4 : 0);
+ *(req->rq_header + smb_suwcnt) = 0x01; /* setup count */
+ *(req->rq_header + smb_suwcnt + 1) = 0x00; /* reserved */
+ WSET(req->rq_header, smb_setup0, req->rq_trans2_command);
+
+ req->rq_iovlen = 2;
+ req->rq_iov[0].iov_base = (void *) req->rq_header;
+ req->rq_iov[0].iov_len = oparam;
+ req->rq_iov[1].iov_base = (req->rq_parm==NULL) ? padding : req->rq_parm;
+ req->rq_iov[1].iov_len = req->rq_lparm;
+ req->rq_slen = oparam + req->rq_lparm;
+
+ if (req->rq_data) {
+ req->rq_iovlen += 2;
+ req->rq_iov[2].iov_base = padding;
+ req->rq_iov[2].iov_len = odata - oparam - req->rq_lparm;
+ req->rq_iov[3].iov_base = req->rq_data;
+ req->rq_iov[3].iov_len = req->rq_ldata;
+ req->rq_slen = odata + req->rq_ldata;
+ }
+
+ /* always a data part for trans2 replies */
+ req->rq_setup_read = smb_setup_bcc;
+
+ return 0;
+}
+
+/*
+ * Add a request and tell smbiod to process it
+ */
+int smb_add_request(struct smb_request *req)
+{
+ long timeleft;
+ struct smb_sb_info *server = req->rq_server;
+ int result = 0;
+
+ smb_setup_request(req);
+ if (req->rq_trans2_command) {
+ if (req->rq_buffer == NULL) {
+ PARANOIA("trans2 attempted without response buffer!\n");
+ return -EIO;
+ }
+ result = smb_setup_trans2request(req);
+ }
+ if (result < 0)
+ return result;
+
+#ifdef SMB_DEBUG_PACKET_SIZE
+ add_xmit_stats(req);
+#endif
+
+ /* add 'req' to the queue of requests */
+ if (smb_lock_server_interruptible(server))
+ return -EINTR;
+
+ /*
+ * Try to send the request as the process. If that fails we queue the
+ * request and let smbiod send it later.
+ */
+
+ /* FIXME: each server has a number on the maximum number of parallel
+ requests. 10, 50 or so. We should not allow more requests to be
+ active. */
+ if (server->mid > 0xf000)
+ server->mid = 0;
+ req->rq_mid = server->mid++;
+ WSET(req->rq_header, smb_mid, req->rq_mid);
+
+ result = 0;
+ if (server->state == CONN_VALID) {
+ if (list_empty(&server->xmitq))
+ result = smb_request_send_req(req);
+ if (result < 0) {
+ /* Connection lost? */
+ server->conn_error = result;
+ server->state = CONN_INVALID;
+ }
+ }
+ if (result != 1)
+ list_add_tail(&req->rq_queue, &server->xmitq);
+ smb_rget(req);
+
+ if (server->state != CONN_VALID)
+ smbiod_retry(server);
+
+ smb_unlock_server(server);
+
+ smbiod_wake_up();
+
+ timeleft = wait_event_interruptible_timeout(req->rq_wait,
+ req->rq_flags & SMB_REQ_RECEIVED, 30*HZ);
+ if (!timeleft || signal_pending(current)) {
+ /*
+ * On timeout or on interrupt we want to try and remove the
+ * request from the recvq/xmitq.
+ * First check if the request is still part of a queue. (May
+ * have been removed by some error condition)
+ */
+ smb_lock_server(server);
+ if (!list_empty(&req->rq_queue)) {
+ list_del_init(&req->rq_queue);
+ smb_rput(req);
+ }
+ smb_unlock_server(server);
+ }
+
+ if (!timeleft) {
+ PARANOIA("request [%p, mid=%d] timed out!\n",
+ req, req->rq_mid);
+ VERBOSE("smb_com: %02x\n", *(req->rq_header + smb_com));
+ VERBOSE("smb_rcls: %02x\n", *(req->rq_header + smb_rcls));
+ VERBOSE("smb_flg: %02x\n", *(req->rq_header + smb_flg));
+ VERBOSE("smb_tid: %04x\n", WVAL(req->rq_header, smb_tid));
+ VERBOSE("smb_pid: %04x\n", WVAL(req->rq_header, smb_pid));
+ VERBOSE("smb_uid: %04x\n", WVAL(req->rq_header, smb_uid));
+ VERBOSE("smb_mid: %04x\n", WVAL(req->rq_header, smb_mid));
+ VERBOSE("smb_wct: %02x\n", *(req->rq_header + smb_wct));
+
+ req->rq_rcls = ERRSRV;
+ req->rq_err = ERRtimeout;
+
+ /* Just in case it was "stuck" */
+ smbiod_wake_up();
+ }
+ VERBOSE("woke up, rcls=%d\n", req->rq_rcls);
+
+ if (req->rq_rcls != 0)
+ req->rq_errno = smb_errno(req);
+ if (signal_pending(current))
+ req->rq_errno = -ERESTARTSYS;
+ return req->rq_errno;
+}
+
+/*
+ * Send a request and place it on the recvq if successfully sent.
+ * Must be called with the server lock held.
+ */
+static int smb_request_send_req(struct smb_request *req)
+{
+ struct smb_sb_info *server = req->rq_server;
+ int result;
+
+ if (req->rq_bytes_sent == 0) {
+ WSET(req->rq_header, smb_tid, server->opt.tid);
+ WSET(req->rq_header, smb_pid, 1);
+ WSET(req->rq_header, smb_uid, server->opt.server_uid);
+ }
+
+ result = smb_send_request(req);
+ if (result < 0 && result != -EAGAIN)
+ goto out;
+
+ result = 0;
+ if (!(req->rq_flags & SMB_REQ_TRANSMITTED))
+ goto out;
+
+ list_move_tail(&req->rq_queue, &server->recvq);
+ result = 1;
+out:
+ return result;
+}
+
+/*
+ * Sends one request for this server. (smbiod)
+ * Must be called with the server lock held.
+ * Returns: <0 on error
+ * 0 if no request could be completely sent
+ * 1 if all data for one request was sent
+ */
+int smb_request_send_server(struct smb_sb_info *server)
+{
+ struct list_head *head;
+ struct smb_request *req;
+ int result;
+
+ if (server->state != CONN_VALID)
+ return 0;
+
+ /* dequeue first request, if any */
+ req = NULL;
+ head = server->xmitq.next;
+ if (head != &server->xmitq) {
+ req = list_entry(head, struct smb_request, rq_queue);
+ }
+ if (!req)
+ return 0;
+
+ result = smb_request_send_req(req);
+ if (result < 0) {
+ server->conn_error = result;
+ list_move(&req->rq_queue, &server->xmitq);
+ result = -EIO;
+ goto out;
+ }
+
+out:
+ return result;
+}
+
+/*
+ * Try to find a request matching this "mid". Typically the first entry will
+ * be the matching one.
+ */
+static struct smb_request *find_request(struct smb_sb_info *server, int mid)
+{
+ struct list_head *tmp;
+ struct smb_request *req = NULL;
+
+ list_for_each(tmp, &server->recvq) {
+ req = list_entry(tmp, struct smb_request, rq_queue);
+ if (req->rq_mid == mid) {
+ break;
+ }
+ req = NULL;
+ }
+
+ if (!req) {
+ VERBOSE("received reply with mid %d but no request!\n",
+ WVAL(server->header, smb_mid));
+ server->rstate = SMB_RECV_DROP;
+ }
+
+ return req;
+}
+
+/*
+ * Called when we have read the smb header and believe this is a response.
+ */
+static int smb_init_request(struct smb_sb_info *server, struct smb_request *req)
+{
+ int hdrlen, wct;
+
+ memcpy(req->rq_header, server->header, SMB_HEADER_LEN);
+
+ wct = *(req->rq_header + smb_wct);
+ if (wct > 20) {
+ PARANOIA("wct too large, %d > 20\n", wct);
+ server->rstate = SMB_RECV_DROP;
+ return 0;
+ }
+
+ req->rq_resp_wct = wct;
+ hdrlen = SMB_HEADER_LEN + wct*2 + 2;
+ VERBOSE("header length: %d smb_wct: %2d\n", hdrlen, wct);
+
+ req->rq_bytes_recvd = SMB_HEADER_LEN;
+ req->rq_rlen = hdrlen;
+ req->rq_iov[0].iov_base = req->rq_header;
+ req->rq_iov[0].iov_len = hdrlen;
+ req->rq_iovlen = 1;
+ server->rstate = SMB_RECV_PARAM;
+
+#ifdef SMB_DEBUG_PACKET_SIZE
+ add_recv_stats(smb_len(server->header));
+#endif
+ return 0;
+}
+
+/*
+ * Reads the SMB parameters
+ */
+static int smb_recv_param(struct smb_sb_info *server, struct smb_request *req)
+{
+ int result;
+
+ result = smb_receive(server, req);
+ if (result < 0)
+ return result;
+ if (req->rq_bytes_recvd < req->rq_rlen)
+ return 0;
+
+ VERBOSE("result: %d smb_bcc: %04x\n", result,
+ WVAL(req->rq_header, SMB_HEADER_LEN +
+ (*(req->rq_header + smb_wct) * 2)));
+
+ result = 0;
+ req->rq_iov[0].iov_base = NULL;
+ req->rq_rlen = 0;
+ if (req->rq_callback)
+ req->rq_callback(req);
+ else if (req->rq_setup_read)
+ result = req->rq_setup_read(req);
+ if (result < 0) {
+ server->rstate = SMB_RECV_DROP;
+ return result;
+ }
+
+ server->rstate = req->rq_rlen > 0 ? SMB_RECV_DATA : SMB_RECV_END;
+
+ req->rq_bytes_recvd = 0; // recvd out of the iov
+
+ VERBOSE("rlen: %d\n", req->rq_rlen);
+ if (req->rq_rlen < 0) {
+ PARANOIA("Parameters read beyond end of packet!\n");
+ server->rstate = SMB_RECV_END;
+ return -EIO;
+ }
+ return 0;
+}
+
+/*
+ * Reads the SMB data
+ */
+static int smb_recv_data(struct smb_sb_info *server, struct smb_request *req)
+{
+ int result;
+
+ result = smb_receive(server, req);
+ if (result < 0)
+ goto out;
+ if (req->rq_bytes_recvd < req->rq_rlen)
+ goto out;
+ server->rstate = SMB_RECV_END;
+out:
+ VERBOSE("result: %d\n", result);
+ return result;
+}
+
+/*
+ * Receive a transaction2 response
+ * Return: 0 if the response has been fully read
+ * 1 if there are further "fragments" to read
+ * <0 if there is an error
+ */
+static int smb_recv_trans2(struct smb_sb_info *server, struct smb_request *req)
+{
+ unsigned char *inbuf;
+ unsigned int parm_disp, parm_offset, parm_count, parm_tot;
+ unsigned int data_disp, data_offset, data_count, data_tot;
+ int hdrlen = SMB_HEADER_LEN + req->rq_resp_wct*2 - 2;
+
+ VERBOSE("handling trans2\n");
+
+ inbuf = req->rq_header;
+ data_tot = WVAL(inbuf, smb_tdrcnt);
+ parm_tot = WVAL(inbuf, smb_tprcnt);
+ parm_disp = WVAL(inbuf, smb_prdisp);
+ parm_offset = WVAL(inbuf, smb_proff);
+ parm_count = WVAL(inbuf, smb_prcnt);
+ data_disp = WVAL(inbuf, smb_drdisp);
+ data_offset = WVAL(inbuf, smb_droff);
+ data_count = WVAL(inbuf, smb_drcnt);
+
+ /* Modify offset for the split header/buffer we use */
+ if (data_count || data_offset) {
+ if (unlikely(data_offset < hdrlen))
+ goto out_bad_data;
+ else
+ data_offset -= hdrlen;
+ }
+ if (parm_count || parm_offset) {
+ if (unlikely(parm_offset < hdrlen))
+ goto out_bad_parm;
+ else
+ parm_offset -= hdrlen;
+ }
+
+ if (parm_count == parm_tot && data_count == data_tot) {
+ /*
+ * This packet has all the trans2 data.
+ *
+ * We setup the request so that this will be the common
+ * case. It may be a server error to not return a
+ * response that fits.
+ */
+ VERBOSE("single trans2 response "
+ "dcnt=%u, pcnt=%u, doff=%u, poff=%u\n",
+ data_count, parm_count,
+ data_offset, parm_offset);
+ req->rq_ldata = data_count;
+ req->rq_lparm = parm_count;
+ req->rq_data = req->rq_buffer + data_offset;
+ req->rq_parm = req->rq_buffer + parm_offset;
+ if (unlikely(parm_offset + parm_count > req->rq_rlen))
+ goto out_bad_parm;
+ if (unlikely(data_offset + data_count > req->rq_rlen))
+ goto out_bad_data;
+ return 0;
+ }
+
+ VERBOSE("multi trans2 response "
+ "frag=%d, dcnt=%u, pcnt=%u, doff=%u, poff=%u\n",
+ req->rq_fragment,
+ data_count, parm_count,
+ data_offset, parm_offset);
+
+ if (!req->rq_fragment) {
+ int buf_len;
+
+ /* We got the first trans2 fragment */
+ req->rq_fragment = 1;
+ req->rq_total_data = data_tot;
+ req->rq_total_parm = parm_tot;
+ req->rq_ldata = 0;
+ req->rq_lparm = 0;
+
+ buf_len = data_tot + parm_tot;
+ if (buf_len > SMB_MAX_PACKET_SIZE)
+ goto out_too_long;
+
+ req->rq_trans2bufsize = buf_len;
+ req->rq_trans2buffer = kzalloc(buf_len, GFP_NOFS);
+ if (!req->rq_trans2buffer)
+ goto out_no_mem;
+
+ req->rq_parm = req->rq_trans2buffer;
+ req->rq_data = req->rq_trans2buffer + parm_tot;
+ } else if (unlikely(req->rq_total_data < data_tot ||
+ req->rq_total_parm < parm_tot))
+ goto out_data_grew;
+
+ if (unlikely(parm_disp + parm_count > req->rq_total_parm ||
+ parm_offset + parm_count > req->rq_rlen))
+ goto out_bad_parm;
+ if (unlikely(data_disp + data_count > req->rq_total_data ||
+ data_offset + data_count > req->rq_rlen))
+ goto out_bad_data;
+
+ inbuf = req->rq_buffer;
+ memcpy(req->rq_parm + parm_disp, inbuf + parm_offset, parm_count);
+ memcpy(req->rq_data + data_disp, inbuf + data_offset, data_count);
+
+ req->rq_ldata += data_count;
+ req->rq_lparm += parm_count;
+
+ /*
+ * Check whether we've received all of the data. Note that
+ * we use the packet totals -- total lengths might shrink!
+ */
+ if (req->rq_ldata >= data_tot && req->rq_lparm >= parm_tot) {
+ req->rq_ldata = data_tot;
+ req->rq_lparm = parm_tot;
+ return 0;
+ }
+ return 1;
+
+out_too_long:
+ printk(KERN_ERR "smb_trans2: data/param too long, data=%u, parm=%u\n",
+ data_tot, parm_tot);
+ goto out_EIO;
+out_no_mem:
+ printk(KERN_ERR "smb_trans2: couldn't allocate data area of %d bytes\n",
+ req->rq_trans2bufsize);
+ req->rq_errno = -ENOMEM;
+ goto out;
+out_data_grew:
+ printk(KERN_ERR "smb_trans2: data/params grew!\n");
+ goto out_EIO;
+out_bad_parm:
+ printk(KERN_ERR "smb_trans2: invalid parms, disp=%u, cnt=%u, tot=%u, ofs=%u\n",
+ parm_disp, parm_count, parm_tot, parm_offset);
+ goto out_EIO;
+out_bad_data:
+ printk(KERN_ERR "smb_trans2: invalid data, disp=%u, cnt=%u, tot=%u, ofs=%u\n",
+ data_disp, data_count, data_tot, data_offset);
+out_EIO:
+ req->rq_errno = -EIO;
+out:
+ return req->rq_errno;
+}
+
+/*
+ * State machine for receiving responses. We handle the fact that we can't
+ * read the full response in one try by having states telling us how much we
+ * have read.
+ *
+ * Must be called with the server lock held (only called from smbiod).
+ *
+ * Return: <0 on error
+ */
+int smb_request_recv(struct smb_sb_info *server)
+{
+ struct smb_request *req = NULL;
+ int result = 0;
+
+ if (smb_recv_available(server) <= 0)
+ return 0;
+
+ VERBOSE("state: %d\n", server->rstate);
+ switch (server->rstate) {
+ case SMB_RECV_DROP:
+ result = smb_receive_drop(server);
+ if (result < 0)
+ break;
+ if (server->rstate == SMB_RECV_DROP)
+ break;
+ server->rstate = SMB_RECV_START;
+ /* fallthrough */
+ case SMB_RECV_START:
+ server->smb_read = 0;
+ server->rstate = SMB_RECV_HEADER;
+ /* fallthrough */
+ case SMB_RECV_HEADER:
+ result = smb_receive_header(server);
+ if (result < 0)
+ break;
+ if (server->rstate == SMB_RECV_HEADER)
+ break;
+ if (! (*(server->header + smb_flg) & SMB_FLAGS_REPLY) ) {
+ server->rstate = SMB_RECV_REQUEST;
+ break;
+ }
+ if (server->rstate != SMB_RECV_HCOMPLETE)
+ break;
+ /* fallthrough */
+ case SMB_RECV_HCOMPLETE:
+ req = find_request(server, WVAL(server->header, smb_mid));
+ if (!req)
+ break;
+ smb_init_request(server, req);
+ req->rq_rcls = *(req->rq_header + smb_rcls);
+ req->rq_err = WVAL(req->rq_header, smb_err);
+ if (server->rstate != SMB_RECV_PARAM)
+ break;
+ /* fallthrough */
+ case SMB_RECV_PARAM:
+ if (!req)
+ req = find_request(server,WVAL(server->header,smb_mid));
+ if (!req)
+ break;
+ result = smb_recv_param(server, req);
+ if (result < 0)
+ break;
+ if (server->rstate != SMB_RECV_DATA)
+ break;
+ /* fallthrough */
+ case SMB_RECV_DATA:
+ if (!req)
+ req = find_request(server,WVAL(server->header,smb_mid));
+ if (!req)
+ break;
+ result = smb_recv_data(server, req);
+ if (result < 0)
+ break;
+ break;
+
+ /* We should never be called with any of these states */
+ case SMB_RECV_END:
+ case SMB_RECV_REQUEST:
+ BUG();
+ }
+
+ if (result < 0) {
+ /* We saw an error */
+ return result;
+ }
+
+ if (server->rstate != SMB_RECV_END)
+ return 0;
+
+ result = 0;
+ if (req->rq_trans2_command && req->rq_rcls == SUCCESS)
+ result = smb_recv_trans2(server, req);
+
+ /*
+ * Response completely read. Drop any extra bytes sent by the server.
+ * (Yes, servers sometimes add extra bytes to responses)
+ */
+ VERBOSE("smb_len: %d smb_read: %d\n",
+ server->smb_len, server->smb_read);
+ if (server->smb_read < server->smb_len)
+ smb_receive_drop(server);
+
+ server->rstate = SMB_RECV_START;
+
+ if (!result) {
+ list_del_init(&req->rq_queue);
+ req->rq_flags |= SMB_REQ_RECEIVED;
+ smb_rput(req);
+ wake_up_interruptible(&req->rq_wait);
+ }
+ return 0;
+}
--- /dev/null
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/uio.h>
+#include <linux/wait.h>
+
+struct smb_request {
+ struct list_head rq_queue; /* recvq or xmitq for the server */
+
+ atomic_t rq_count;
+
+ wait_queue_head_t rq_wait;
+ int rq_flags;
+ int rq_mid; /* multiplex ID, set by request.c */
+
+ struct smb_sb_info *rq_server;
+
+ /* header + word count + parameter words + byte count */
+ unsigned char rq_header[SMB_HEADER_LEN + 20*2 + 2];
+
+ int rq_bufsize;
+ unsigned char *rq_buffer;
+
+ /* FIXME: this is not good enough for merging IO requests. */
+ unsigned char *rq_page;
+ int rq_rsize;
+
+ int rq_resp_wct;
+ int rq_resp_bcc;
+
+ int rq_rlen;
+ int rq_bytes_recvd;
+
+ int rq_slen;
+ int rq_bytes_sent;
+
+ int rq_iovlen;
+ struct kvec rq_iov[4];
+
+ int (*rq_setup_read) (struct smb_request *);
+ void (*rq_callback) (struct smb_request *);
+
+ /* ------ trans2 stuff ------ */
+
+ u16 rq_trans2_command; /* 0 if not a trans2 request */
+ unsigned int rq_ldata;
+ unsigned char *rq_data;
+ unsigned int rq_lparm;
+ unsigned char *rq_parm;
+
+ int rq_fragment;
+ u32 rq_total_data;
+ u32 rq_total_parm;
+ int rq_trans2bufsize;
+ unsigned char *rq_trans2buffer;
+
+ /* ------ response ------ */
+
+ unsigned short rq_rcls;
+ unsigned short rq_err;
+ int rq_errno;
+};
+
+#define SMB_REQ_STATIC 0x0001 /* rq_buffer is static */
+#define SMB_REQ_NORETRY 0x0002 /* request is invalid after retry */
+
+#define SMB_REQ_TRANSMITTED 0x4000 /* all data has been sent */
+#define SMB_REQ_RECEIVED 0x8000 /* reply received, smbiod is done */
+
+#define xSMB_REQ_NOREPLY 0x0004 /* we don't want the reply (if any) */
+#define xSMB_REQ_NORECEIVER 0x0008 /* caller doesn't wait for response */
--- /dev/null
+/*
+ * smb.h
+ *
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ */
+
+#ifndef _LINUX_SMB_H
+#define _LINUX_SMB_H
+
+#include <linux/types.h>
+#include <linux/magic.h>
+#ifdef __KERNEL__
+#include <linux/time.h>
+#endif
+
+enum smb_protocol {
+ SMB_PROTOCOL_NONE,
+ SMB_PROTOCOL_CORE,
+ SMB_PROTOCOL_COREPLUS,
+ SMB_PROTOCOL_LANMAN1,
+ SMB_PROTOCOL_LANMAN2,
+ SMB_PROTOCOL_NT1
+};
+
+enum smb_case_hndl {
+ SMB_CASE_DEFAULT,
+ SMB_CASE_LOWER,
+ SMB_CASE_UPPER
+};
+
+struct smb_dskattr {
+ __u16 total;
+ __u16 allocblocks;
+ __u16 blocksize;
+ __u16 free;
+};
+
+struct smb_conn_opt {
+
+ /* The socket */
+ unsigned int fd;
+
+ enum smb_protocol protocol;
+ enum smb_case_hndl case_handling;
+
+ /* Connection-Options */
+
+ __u32 max_xmit;
+ __u16 server_uid;
+ __u16 tid;
+
+ /* The following are LANMAN 1.0 options */
+ __u16 secmode;
+ __u16 maxmux;
+ __u16 maxvcs;
+ __u16 rawmode;
+ __u32 sesskey;
+
+ /* The following are NT LM 0.12 options */
+ __u32 maxraw;
+ __u32 capabilities;
+ __s16 serverzone;
+};
+
+#ifdef __KERNEL__
+
+#define SMB_NLS_MAXNAMELEN 20
+struct smb_nls_codepage {
+ char local_name[SMB_NLS_MAXNAMELEN];
+ char remote_name[SMB_NLS_MAXNAMELEN];
+};
+
+
+#define SMB_MAXNAMELEN 255
+#define SMB_MAXPATHLEN 1024
+
+/*
+ * Contains all relevant data on a SMB networked file.
+ */
+struct smb_fattr {
+ __u16 attr;
+
+ unsigned long f_ino;
+ umode_t f_mode;
+ nlink_t f_nlink;
+ uid_t f_uid;
+ gid_t f_gid;
+ dev_t f_rdev;
+ loff_t f_size;
+ struct timespec f_atime;
+ struct timespec f_mtime;
+ struct timespec f_ctime;
+ unsigned long f_blocks;
+ int f_unix;
+};
+
+enum smb_conn_state {
+ CONN_VALID, /* everything's fine */
+ CONN_INVALID, /* Something went wrong, but did not
+ try to reconnect yet. */
+ CONN_RETRIED, /* Tried a reconnection, but was refused */
+ CONN_RETRYING /* Currently trying to reconnect */
+};
+
+#define SMB_HEADER_LEN 37 /* includes everything up to, but not
+ * including smb_bcc */
+
+#define SMB_INITIAL_PACKET_SIZE 4000
+#define SMB_MAX_PACKET_SIZE 32768
+
+/* reserve this much space for trans2 parameters. Shouldn't have to be more
+ than 10 or so, but OS/2 seems happier like this. */
+#define SMB_TRANS2_MAX_PARAM 64
+
+#endif
+#endif
--- /dev/null
+/*
+ * Defines some debug macros for smbfs.
+ */
+
+/* This makes a dentry parent/child name pair. Useful for debugging printk's */
+#define DENTRY_PATH(dentry) \
+ (dentry)->d_parent->d_name.name,(dentry)->d_name.name
+
+/*
+ * safety checks that should never happen ???
+ * these are normally enabled.
+ */
+#ifdef SMBFS_PARANOIA
+# define PARANOIA(f, a...) printk(KERN_NOTICE "%s: " f, __func__ , ## a)
+#else
+# define PARANOIA(f, a...) do { ; } while(0)
+#endif
+
+/* lots of debug messages */
+#ifdef SMBFS_DEBUG_VERBOSE
+# define VERBOSE(f, a...) printk(KERN_DEBUG "%s: " f, __func__ , ## a)
+#else
+# define VERBOSE(f, a...) do { ; } while(0)
+#endif
+
+/*
+ * "normal" debug messages, but not with a normal DEBUG define ... way
+ * too common name.
+ */
+#ifdef SMBFS_DEBUG
+#define DEBUG1(f, a...) printk(KERN_DEBUG "%s: " f, __func__ , ## a)
+#else
+#define DEBUG1(f, a...) do { ; } while(0)
+#endif
--- /dev/null
+/*
+ * smb_fs.h
+ *
+ * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ */
+
+#ifndef _LINUX_SMB_FS_H
+#define _LINUX_SMB_FS_H
+
+#include "smb.h"
+
+/*
+ * ioctl commands
+ */
+#define SMB_IOC_GETMOUNTUID _IOR('u', 1, __kernel_old_uid_t)
+#define SMB_IOC_NEWCONN _IOW('u', 2, struct smb_conn_opt)
+
+/* __kernel_uid_t can never change, so we have to use __kernel_uid32_t */
+#define SMB_IOC_GETMOUNTUID32 _IOR('u', 3, __kernel_uid32_t)
+
+
+#ifdef __KERNEL__
+#include "smb_fs_i.h"
+#include "smb_fs_sb.h"
+#include "smb_mount.h"
+
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/vmalloc.h>
+#include <linux/jiffies.h>
+#include <asm/unaligned.h>
+
+static inline struct smb_sb_info *SMB_SB(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+static inline struct smb_inode_info *SMB_I(struct inode *inode)
+{
+ return container_of(inode, struct smb_inode_info, vfs_inode);
+}
+
+/* macro names are short for word, double-word, long value (?) */
+#define WVAL(buf, pos) (get_unaligned_le16((u8 *)(buf) + (pos)))
+#define DVAL(buf, pos) (get_unaligned_le32((u8 *)(buf) + (pos)))
+#define LVAL(buf, pos) (get_unaligned_le64((u8 *)(buf) + (pos)))
+
+#define WSET(buf, pos, val) put_unaligned_le16((val), (u8 *)(buf) + (pos))
+#define DSET(buf, pos, val) put_unaligned_le32((val), (u8 *)(buf) + (pos))
+#define LSET(buf, pos, val) put_unaligned_le64((val), (u8 *)(buf) + (pos))
+
+/* where to find the base of the SMB packet proper */
+#define smb_base(buf) ((u8 *)(((u8 *)(buf))+4))
+
+/*
+ * Flags for the in-memory inode
+ */
+#define SMB_F_LOCALWRITE 0x02 /* file modified locally */
+
+
+/* NT1 protocol capability bits */
+#define SMB_CAP_RAW_MODE 0x00000001
+#define SMB_CAP_MPX_MODE 0x00000002
+#define SMB_CAP_UNICODE 0x00000004
+#define SMB_CAP_LARGE_FILES 0x00000008
+#define SMB_CAP_NT_SMBS 0x00000010
+#define SMB_CAP_RPC_REMOTE_APIS 0x00000020
+#define SMB_CAP_STATUS32 0x00000040
+#define SMB_CAP_LEVEL_II_OPLOCKS 0x00000080
+#define SMB_CAP_LOCK_AND_READ 0x00000100
+#define SMB_CAP_NT_FIND 0x00000200
+#define SMB_CAP_DFS 0x00001000
+#define SMB_CAP_LARGE_READX 0x00004000
+#define SMB_CAP_LARGE_WRITEX 0x00008000
+#define SMB_CAP_UNIX 0x00800000 /* unofficial ... */
+
+
+/*
+ * This is the time we allow an inode, dentry or dir cache to live. It is bad
+ * for performance to have shorter ttl on an inode than on the cache. It can
+ * cause refresh on each inode for a dir listing ... one-by-one
+ */
+#define SMB_MAX_AGE(server) (((server)->mnt->ttl * HZ) / 1000)
+
+static inline void
+smb_age_dentry(struct smb_sb_info *server, struct dentry *dentry)
+{
+ dentry->d_time = jiffies - SMB_MAX_AGE(server);
+}
+
+struct smb_cache_head {
+ time_t mtime; /* unused */
+ unsigned long time; /* cache age */
+ unsigned long end; /* last valid fpos in cache */
+ int eof;
+};
+
+#define SMB_DIRCACHE_SIZE ((int)(PAGE_CACHE_SIZE/sizeof(struct dentry *)))
+union smb_dir_cache {
+ struct smb_cache_head head;
+ struct dentry *dentry[SMB_DIRCACHE_SIZE];
+};
+
+#define SMB_FIRSTCACHE_SIZE ((int)((SMB_DIRCACHE_SIZE * \
+ sizeof(struct dentry *) - sizeof(struct smb_cache_head)) / \
+ sizeof(struct dentry *)))
+
+#define SMB_DIRCACHE_START (SMB_DIRCACHE_SIZE - SMB_FIRSTCACHE_SIZE)
+
+struct smb_cache_control {
+ struct smb_cache_head head;
+ struct page *page;
+ union smb_dir_cache *cache;
+ unsigned long fpos, ofs;
+ int filled, valid, idx;
+};
+
+#define SMB_OPS_NUM_STATIC 5
+struct smb_ops {
+ int (*read)(struct inode *inode, loff_t offset, int count,
+ char *data);
+ int (*write)(struct inode *inode, loff_t offset, int count, const
+ char *data);
+ int (*readdir)(struct file *filp, void *dirent, filldir_t filldir,
+ struct smb_cache_control *ctl);
+
+ int (*getattr)(struct smb_sb_info *server, struct dentry *dir,
+ struct smb_fattr *fattr);
+ /* int (*setattr)(...); */ /* setattr is really icky! */
+
+ int (*truncate)(struct inode *inode, loff_t length);
+
+
+ /* --- --- --- end of "static" entries --- --- --- */
+
+ int (*convert)(unsigned char *output, int olen,
+ const unsigned char *input, int ilen,
+ struct nls_table *nls_from,
+ struct nls_table *nls_to);
+};
+
+static inline int
+smb_is_open(struct inode *i)
+{
+ return (SMB_I(i)->open == server_from_inode(i)->generation);
+}
+
+extern void smb_install_null_ops(struct smb_ops *);
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_SMB_FS_H */
--- /dev/null
+/*
+ * smb_fs_i.h
+ *
+ * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ */
+
+#ifndef _LINUX_SMB_FS_I
+#define _LINUX_SMB_FS_I
+
+#include <linux/types.h>
+#include <linux/fs.h>
+
+/*
+ * smb fs inode data (in memory only)
+ */
+struct smb_inode_info {
+
+ /*
+ * file handles are local to a connection. A file is open if
+ * (open == generation).
+ */
+ unsigned int open; /* open generation */
+ __u16 fileid; /* What id to handle a file with? */
+ __u16 attr; /* Attribute fields, DOS value */
+
+ __u16 access; /* Access mode */
+ __u16 flags;
+ unsigned long oldmtime; /* last time refreshed */
+ unsigned long closed; /* timestamp when closed */
+ unsigned openers; /* number of fileid users */
+
+ struct inode vfs_inode; /* must be at the end */
+};
+
+#endif
--- /dev/null
+/*
+ * smb_fs_sb.h
+ *
+ * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ */
+
+#ifndef _SMB_FS_SB
+#define _SMB_FS_SB
+
+#include <linux/types.h>
+#include <linux/backing-dev.h>
+#include "smb.h"
+
+/*
+ * Upper limit on the total number of active smb_request structs.
+ */
+#define MAX_REQUEST_HARD 256
+
+enum smb_receive_state {
+ SMB_RECV_START, /* No data read, looking for length + sig */
+ SMB_RECV_HEADER, /* Reading the header data */
+ SMB_RECV_HCOMPLETE, /* Done with the header */
+ SMB_RECV_PARAM, /* Reading parameter words */
+ SMB_RECV_DATA, /* Reading data bytes */
+ SMB_RECV_END, /* End of request */
+ SMB_RECV_DROP, /* Dropping this SMB */
+ SMB_RECV_REQUEST, /* Received a request and not a reply */
+};
+
+/* structure access macros */
+#define server_from_inode(inode) SMB_SB((inode)->i_sb)
+#define server_from_dentry(dentry) SMB_SB((dentry)->d_sb)
+#define SB_of(server) ((server)->super_block)
+
+struct smb_sb_info {
+ /* List of all smbfs superblocks */
+ struct list_head entry;
+
+ enum smb_conn_state state;
+ struct file * sock_file;
+ int conn_error;
+ enum smb_receive_state rstate;
+
+ atomic_t nr_requests;
+ struct list_head xmitq;
+ struct list_head recvq;
+ u16 mid;
+
+ struct smb_mount_data_kernel *mnt;
+
+ /* Connections are counted. Each time a new socket arrives,
+ * generation is incremented.
+ */
+ unsigned int generation;
+ struct pid *conn_pid;
+ struct smb_conn_opt opt;
+ wait_queue_head_t conn_wq;
+ int conn_complete;
+ struct semaphore sem;
+
+ unsigned char header[SMB_HEADER_LEN + 20*2 + 2];
+ u32 header_len;
+ u32 smb_len;
+ u32 smb_read;
+
+ /* We use our own data_ready callback, but need the original one */
+ void *data_ready;
+
+ /* nls pointers for codepage conversions */
+ struct nls_table *remote_nls;
+ struct nls_table *local_nls;
+
+ struct smb_ops *ops;
+
+ struct super_block *super_block;
+
+ struct backing_dev_info bdi;
+};
+
+static inline int
+smb_lock_server_interruptible(struct smb_sb_info *server)
+{
+ return down_interruptible(&(server->sem));
+}
+
+static inline void
+smb_lock_server(struct smb_sb_info *server)
+{
+ down(&(server->sem));
+}
+
+static inline void
+smb_unlock_server(struct smb_sb_info *server)
+{
+ up(&(server->sem));
+}
+
+#endif
--- /dev/null
+/*
+ * smb_mount.h
+ *
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ */
+
+#ifndef _LINUX_SMB_MOUNT_H
+#define _LINUX_SMB_MOUNT_H
+
+#include <linux/types.h>
+
+#define SMB_MOUNT_VERSION 6
+
+struct smb_mount_data {
+ int version;
+ __kernel_uid_t mounted_uid; /* Who may umount() this filesystem? */
+ __kernel_uid_t uid;
+ __kernel_gid_t gid;
+ __kernel_mode_t file_mode;
+ __kernel_mode_t dir_mode;
+};
+
+
+#ifdef __KERNEL__
+
+/* "vers" in big-endian */
+#define SMB_MOUNT_ASCII 0x76657273
+
+#define SMB_MOUNT_OLDVERSION 6
+#undef SMB_MOUNT_VERSION
+#define SMB_MOUNT_VERSION 7
+
+/* flags */
+#define SMB_MOUNT_WIN95 0x0001 /* Win 95 server */
+#define SMB_MOUNT_OLDATTR 0x0002 /* Use core getattr (Win 95 speedup) */
+#define SMB_MOUNT_DIRATTR 0x0004 /* Use find_first for getattr */
+#define SMB_MOUNT_CASE 0x0008 /* Be case sensitive */
+#define SMB_MOUNT_UNICODE 0x0010 /* Server talks unicode */
+#define SMB_MOUNT_UID 0x0020 /* Use user specified uid */
+#define SMB_MOUNT_GID 0x0040 /* Use user specified gid */
+#define SMB_MOUNT_FMODE 0x0080 /* Use user specified file mode */
+#define SMB_MOUNT_DMODE 0x0100 /* Use user specified dir mode */
+
+struct smb_mount_data_kernel {
+ int version;
+
+ uid_t mounted_uid; /* Who may umount() this filesystem? */
+ uid_t uid;
+ gid_t gid;
+ mode_t file_mode;
+ mode_t dir_mode;
+
+ u32 flags;
+
+ /* maximum age in jiffies (inode, dentry and dircache) */
+ int ttl;
+
+ struct smb_nls_codepage codepage;
+};
+
+#endif
+
+#endif
--- /dev/null
+Smbfs is a filesystem that implements the SMB protocol, which is the
+protocol used by Windows for Workgroups, Windows 95 and Windows NT.
+Smbfs was inspired by Samba, the program written by Andrew Tridgell
+that turns any Unix host into a file server for DOS or Windows clients.
+
+Smbfs is a SMB client, but uses parts of samba for its operation. For
+more info on samba, including documentation, please go to
+http://www.samba.org/ and then on to your nearest mirror.
--- /dev/null
+/*
+ * smbiod.c
+ *
+ * Copyright (C) 2000, Charles Loep / Corel Corp.
+ * Copyright (C) 2001, Urban Widmark
+ */
+
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/dcache.h>
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/kthread.h>
+#include <net/ip.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include "smb_fs.h"
+#include "smbno.h"
+#include "smb_mount.h"
+#include "smb_debug.h"
+#include "request.h"
+#include "proto.h"
+
+enum smbiod_state {
+ SMBIOD_DEAD,
+ SMBIOD_STARTING,
+ SMBIOD_RUNNING,
+};
+
+static enum smbiod_state smbiod_state = SMBIOD_DEAD;
+static struct task_struct *smbiod_thread;
+static DECLARE_WAIT_QUEUE_HEAD(smbiod_wait);
+static LIST_HEAD(smb_servers);
+static DEFINE_SPINLOCK(servers_lock);
+
+#define SMBIOD_DATA_READY (1<<0)
+static unsigned long smbiod_flags;
+
+static int smbiod(void *);
+static int smbiod_start(void);
+
+/*
+ * called when there's work for us to do
+ */
+void smbiod_wake_up(void)
+{
+ if (smbiod_state == SMBIOD_DEAD)
+ return;
+ set_bit(SMBIOD_DATA_READY, &smbiod_flags);
+ wake_up_interruptible(&smbiod_wait);
+}
+
+/*
+ * start smbiod if none is running
+ */
+static int smbiod_start(void)
+{
+ struct task_struct *tsk;
+ int err = 0;
+
+ if (smbiod_state != SMBIOD_DEAD)
+ return 0;
+ smbiod_state = SMBIOD_STARTING;
+ __module_get(THIS_MODULE);
+ spin_unlock(&servers_lock);
+ tsk = kthread_run(smbiod, NULL, "smbiod");
+ if (IS_ERR(tsk)) {
+ err = PTR_ERR(tsk);
+ module_put(THIS_MODULE);
+ }
+
+ spin_lock(&servers_lock);
+ if (err < 0) {
+ smbiod_state = SMBIOD_DEAD;
+ smbiod_thread = NULL;
+ } else {
+ smbiod_state = SMBIOD_RUNNING;
+ smbiod_thread = tsk;
+ }
+ return err;
+}
+
+/*
+ * register a server & start smbiod if necessary
+ */
+int smbiod_register_server(struct smb_sb_info *server)
+{
+ int ret;
+ spin_lock(&servers_lock);
+ list_add(&server->entry, &smb_servers);
+ VERBOSE("%p\n", server);
+ ret = smbiod_start();
+ spin_unlock(&servers_lock);
+ return ret;
+}
+
+/*
+ * Unregister a server
+ * Must be called with the server lock held.
+ */
+void smbiod_unregister_server(struct smb_sb_info *server)
+{
+ spin_lock(&servers_lock);
+ list_del_init(&server->entry);
+ VERBOSE("%p\n", server);
+ spin_unlock(&servers_lock);
+
+ smbiod_wake_up();
+ smbiod_flush(server);
+}
+
+void smbiod_flush(struct smb_sb_info *server)
+{
+ struct list_head *tmp, *n;
+ struct smb_request *req;
+
+ list_for_each_safe(tmp, n, &server->xmitq) {
+ req = list_entry(tmp, struct smb_request, rq_queue);
+ req->rq_errno = -EIO;
+ list_del_init(&req->rq_queue);
+ smb_rput(req);
+ wake_up_interruptible(&req->rq_wait);
+ }
+ list_for_each_safe(tmp, n, &server->recvq) {
+ req = list_entry(tmp, struct smb_request, rq_queue);
+ req->rq_errno = -EIO;
+ list_del_init(&req->rq_queue);
+ smb_rput(req);
+ wake_up_interruptible(&req->rq_wait);
+ }
+}
+
+/*
+ * Wake up smbmount and make it reconnect to the server.
+ * This must be called with the server locked.
+ *
+ * FIXME: add smbconnect version to this
+ */
+int smbiod_retry(struct smb_sb_info *server)
+{
+ struct list_head *head;
+ struct smb_request *req;
+ struct pid *pid = get_pid(server->conn_pid);
+ int result = 0;
+
+ VERBOSE("state: %d\n", server->state);
+ if (server->state == CONN_VALID || server->state == CONN_RETRYING)
+ goto out;
+
+ smb_invalidate_inodes(server);
+
+ /*
+ * Some requests are meaningless after a retry, so we abort them.
+ * One example are all requests using 'fileid' since the files are
+ * closed on retry.
+ */
+ head = server->xmitq.next;
+ while (head != &server->xmitq) {
+ req = list_entry(head, struct smb_request, rq_queue);
+ head = head->next;
+
+ req->rq_bytes_sent = 0;
+ if (req->rq_flags & SMB_REQ_NORETRY) {
+ VERBOSE("aborting request %p on xmitq\n", req);
+ req->rq_errno = -EIO;
+ list_del_init(&req->rq_queue);
+ smb_rput(req);
+ wake_up_interruptible(&req->rq_wait);
+ }
+ }
+
+ /*
+ * FIXME: test the code for retrying request we already sent
+ */
+ head = server->recvq.next;
+ while (head != &server->recvq) {
+ req = list_entry(head, struct smb_request, rq_queue);
+ head = head->next;
+#if 0
+ if (req->rq_flags & SMB_REQ_RETRY) {
+ /* must move the request to the xmitq */
+ VERBOSE("retrying request %p on recvq\n", req);
+ list_move(&req->rq_queue, &server->xmitq);
+ continue;
+ }
+#endif
+
+ VERBOSE("aborting request %p on recvq\n", req);
+ /* req->rq_rcls = ???; */ /* FIXME: set smb error code too? */
+ req->rq_errno = -EIO;
+ list_del_init(&req->rq_queue);
+ smb_rput(req);
+ wake_up_interruptible(&req->rq_wait);
+ }
+
+ smb_close_socket(server);
+
+ if (!pid) {
+ /* FIXME: this is fatal, umount? */
+ printk(KERN_ERR "smb_retry: no connection process\n");
+ server->state = CONN_RETRIED;
+ goto out;
+ }
+
+ /*
+ * Change state so that only one retry per server will be started.
+ */
+ server->state = CONN_RETRYING;
+
+ /*
+ * Note: use the "priv" flag, as a user process may need to reconnect.
+ */
+ result = kill_pid(pid, SIGUSR1, 1);
+ if (result) {
+ /* FIXME: this is most likely fatal, umount? */
+ printk(KERN_ERR "smb_retry: signal failed [%d]\n", result);
+ goto out;
+ }
+ VERBOSE("signalled pid %d\n", pid_nr(pid));
+
+ /* FIXME: The retried requests should perhaps get a "time boost". */
+
+out:
+ put_pid(pid);
+ return result;
+}
+
+/*
+ * Currently handles lockingX packets.
+ */
+static void smbiod_handle_request(struct smb_sb_info *server)
+{
+ PARANOIA("smbiod got a request ... and we don't implement oplocks!\n");
+ server->rstate = SMB_RECV_DROP;
+}
+
+/*
+ * Do some IO for one server.
+ */
+static void smbiod_doio(struct smb_sb_info *server)
+{
+ int result;
+ int maxwork = 7;
+
+ if (server->state != CONN_VALID)
+ goto out;
+
+ do {
+ result = smb_request_recv(server);
+ if (result < 0) {
+ server->state = CONN_INVALID;
+ smbiod_retry(server);
+ goto out; /* reconnecting is slow */
+ } else if (server->rstate == SMB_RECV_REQUEST)
+ smbiod_handle_request(server);
+ } while (result > 0 && maxwork-- > 0);
+
+ /*
+ * If there is more to read then we want to be sure to wake up again.
+ */
+ if (server->state != CONN_VALID)
+ goto out;
+ if (smb_recv_available(server) > 0)
+ set_bit(SMBIOD_DATA_READY, &smbiod_flags);
+
+ do {
+ result = smb_request_send_server(server);
+ if (result < 0) {
+ server->state = CONN_INVALID;
+ smbiod_retry(server);
+ goto out; /* reconnecting is slow */
+ }
+ } while (result > 0);
+
+ /*
+ * If the last request was not sent out we want to wake up again.
+ */
+ if (!list_empty(&server->xmitq))
+ set_bit(SMBIOD_DATA_READY, &smbiod_flags);
+
+out:
+ return;
+}
+
+/*
+ * smbiod kernel thread
+ */
+static int smbiod(void *unused)
+{
+ VERBOSE("SMB Kernel thread starting (%d) ...\n", current->pid);
+
+ for (;;) {
+ struct smb_sb_info *server;
+ struct list_head *pos, *n;
+
+ /* FIXME: Use poll? */
+ wait_event_interruptible(smbiod_wait,
+ test_bit(SMBIOD_DATA_READY, &smbiod_flags));
+ if (signal_pending(current)) {
+ spin_lock(&servers_lock);
+ smbiod_state = SMBIOD_DEAD;
+ spin_unlock(&servers_lock);
+ break;
+ }
+
+ clear_bit(SMBIOD_DATA_READY, &smbiod_flags);
+
+ spin_lock(&servers_lock);
+ if (list_empty(&smb_servers)) {
+ smbiod_state = SMBIOD_DEAD;
+ spin_unlock(&servers_lock);
+ break;
+ }
+
+ list_for_each_safe(pos, n, &smb_servers) {
+ server = list_entry(pos, struct smb_sb_info, entry);
+ VERBOSE("checking server %p\n", server);
+
+ if (server->state == CONN_VALID) {
+ spin_unlock(&servers_lock);
+
+ smb_lock_server(server);
+ smbiod_doio(server);
+ smb_unlock_server(server);
+
+ spin_lock(&servers_lock);
+ }
+ }
+ spin_unlock(&servers_lock);
+ }
+
+ VERBOSE("SMB Kernel thread exiting (%d) ...\n", current->pid);
+ module_put_and_exit(0);
+}
--- /dev/null
+#ifndef _SMBNO_H_
+#define _SMBNO_H_
+
+/* these define the attribute byte as seen by DOS */
+#define aRONLY (1L<<0)
+#define aHIDDEN (1L<<1)
+#define aSYSTEM (1L<<2)
+#define aVOLID (1L<<3)
+#define aDIR (1L<<4)
+#define aARCH (1L<<5)
+
+/* error classes */
+#define SUCCESS 0 /* The request was successful. */
+#define ERRDOS 0x01 /* Error is from the core DOS operating system set. */
+#define ERRSRV 0x02 /* Error is generated by the server network file manager.*/
+#define ERRHRD 0x03 /* Error is an hardware error. */
+#define ERRCMD 0xFF /* Command was not in the "SMB" format. */
+
+/* SMB X/Open error codes for the ERRdos error class */
+
+#define ERRbadfunc 1 /* Invalid function (or system call) */
+#define ERRbadfile 2 /* File not found (pathname error) */
+#define ERRbadpath 3 /* Directory not found */
+#define ERRnofids 4 /* Too many open files */
+#define ERRnoaccess 5 /* Access denied */
+#define ERRbadfid 6 /* Invalid fid */
+#define ERRbadmcb 7 /* Memory control blocks destroyed */
+#define ERRnomem 8 /* Out of memory */
+#define ERRbadmem 9 /* Invalid memory block address */
+#define ERRbadenv 10 /* Invalid environment */
+#define ERRbadformat 11 /* Invalid format */
+#define ERRbadaccess 12 /* Invalid open mode */
+#define ERRbaddata 13 /* Invalid data (only from ioctl call) */
+#define ERRres 14 /* reserved */
+#define ERRbaddrive 15 /* Invalid drive */
+#define ERRremcd 16 /* Attempt to delete current directory */
+#define ERRdiffdevice 17 /* rename/move across different filesystems */
+#define ERRnofiles 18 /* no more files found in file search */
+#define ERRbadshare 32 /* Share mode on file conflict with open mode */
+#define ERRlock 33 /* Lock request conflicts with existing lock */
+#define ERRfilexists 80 /* File in operation already exists */
+#define ERRbadpipe 230 /* Named pipe invalid */
+#define ERRpipebusy 231 /* All instances of pipe are busy */
+#define ERRpipeclosing 232 /* named pipe close in progress */
+#define ERRnotconnected 233 /* No process on other end of named pipe */
+#define ERRmoredata 234 /* More data to be returned */
+
+#define ERROR_INVALID_PARAMETER 87
+#define ERROR_DISK_FULL 112
+#define ERROR_INVALID_NAME 123
+#define ERROR_DIR_NOT_EMPTY 145
+#define ERROR_NOT_LOCKED 158
+#define ERROR_ALREADY_EXISTS 183 /* see also 80 ? */
+#define ERROR_EAS_DIDNT_FIT 275 /* Extended attributes didn't fit */
+#define ERROR_EAS_NOT_SUPPORTED 282 /* Extended attributes not supported */
+
+/* Error codes for the ERRSRV class */
+
+#define ERRerror 1 /* Non specific error code */
+#define ERRbadpw 2 /* Bad password */
+#define ERRbadtype 3 /* reserved */
+#define ERRaccess 4 /* No permissions to do the requested operation */
+#define ERRinvnid 5 /* tid invalid */
+#define ERRinvnetname 6 /* Invalid servername */
+#define ERRinvdevice 7 /* Invalid device */
+#define ERRqfull 49 /* Print queue full */
+#define ERRqtoobig 50 /* Queued item too big */
+#define ERRinvpfid 52 /* Invalid print file in smb_fid */
+#define ERRsmbcmd 64 /* Unrecognised command */
+#define ERRsrverror 65 /* smb server internal error */
+#define ERRfilespecs 67 /* fid and pathname invalid combination */
+#define ERRbadlink 68 /* reserved */
+#define ERRbadpermits 69 /* Access specified for a file is not valid */
+#define ERRbadpid 70 /* reserved */
+#define ERRsetattrmode 71 /* attribute mode invalid */
+#define ERRpaused 81 /* Message server paused */
+#define ERRmsgoff 82 /* Not receiving messages */
+#define ERRnoroom 83 /* No room for message */
+#define ERRrmuns 87 /* too many remote usernames */
+#define ERRtimeout 88 /* operation timed out */
+#define ERRnoresource 89 /* No resources currently available for request. */
+#define ERRtoomanyuids 90 /* too many userids */
+#define ERRbaduid 91 /* bad userid */
+#define ERRuseMPX 250 /* temporarily unable to use raw mode, use MPX mode */
+#define ERRuseSTD 251 /* temporarily unable to use raw mode, use std.mode */
+#define ERRcontMPX 252 /* resume MPX mode */
+#define ERRbadPW /* reserved */
+#define ERRnosupport 0xFFFF
+
+/* Error codes for the ERRHRD class */
+
+#define ERRnowrite 19 /* read only media */
+#define ERRbadunit 20 /* Unknown device */
+#define ERRnotready 21 /* Drive not ready */
+#define ERRbadcmd 22 /* Unknown command */
+#define ERRdata 23 /* Data (CRC) error */
+#define ERRbadreq 24 /* Bad request structure length */
+#define ERRseek 25
+#define ERRbadmedia 26
+#define ERRbadsector 27
+#define ERRnopaper 28
+#define ERRwrite 29 /* write fault */
+#define ERRread 30 /* read fault */
+#define ERRgeneral 31 /* General hardware failure */
+#define ERRwrongdisk 34
+#define ERRFCBunavail 35
+#define ERRsharebufexc 36 /* share buffer exceeded */
+#define ERRdiskfull 39
+
+/*
+ * Access modes when opening a file
+ */
+#define SMB_ACCMASK 0x0003
+#define SMB_O_RDONLY 0x0000
+#define SMB_O_WRONLY 0x0001
+#define SMB_O_RDWR 0x0002
+
+/* offsets into message for common items */
+#define smb_com 8
+#define smb_rcls 9
+#define smb_reh 10
+#define smb_err 11
+#define smb_flg 13
+#define smb_flg2 14
+#define smb_reb 13
+#define smb_tid 28
+#define smb_pid 30
+#define smb_uid 32
+#define smb_mid 34
+#define smb_wct 36
+#define smb_vwv 37
+#define smb_vwv0 37
+#define smb_vwv1 39
+#define smb_vwv2 41
+#define smb_vwv3 43
+#define smb_vwv4 45
+#define smb_vwv5 47
+#define smb_vwv6 49
+#define smb_vwv7 51
+#define smb_vwv8 53
+#define smb_vwv9 55
+#define smb_vwv10 57
+#define smb_vwv11 59
+#define smb_vwv12 61
+#define smb_vwv13 63
+#define smb_vwv14 65
+
+/* these are the trans2 sub fields for primary requests */
+#define smb_tpscnt smb_vwv0
+#define smb_tdscnt smb_vwv1
+#define smb_mprcnt smb_vwv2
+#define smb_mdrcnt smb_vwv3
+#define smb_msrcnt smb_vwv4
+#define smb_flags smb_vwv5
+#define smb_timeout smb_vwv6
+#define smb_pscnt smb_vwv9
+#define smb_psoff smb_vwv10
+#define smb_dscnt smb_vwv11
+#define smb_dsoff smb_vwv12
+#define smb_suwcnt smb_vwv13
+#define smb_setup smb_vwv14
+#define smb_setup0 smb_setup
+#define smb_setup1 (smb_setup+2)
+#define smb_setup2 (smb_setup+4)
+
+/* these are for the secondary requests */
+#define smb_spscnt smb_vwv2
+#define smb_spsoff smb_vwv3
+#define smb_spsdisp smb_vwv4
+#define smb_sdscnt smb_vwv5
+#define smb_sdsoff smb_vwv6
+#define smb_sdsdisp smb_vwv7
+#define smb_sfid smb_vwv8
+
+/* and these for responses */
+#define smb_tprcnt smb_vwv0
+#define smb_tdrcnt smb_vwv1
+#define smb_prcnt smb_vwv3
+#define smb_proff smb_vwv4
+#define smb_prdisp smb_vwv5
+#define smb_drcnt smb_vwv6
+#define smb_droff smb_vwv7
+#define smb_drdisp smb_vwv8
+
+/* the complete */
+#define SMBmkdir 0x00 /* create directory */
+#define SMBrmdir 0x01 /* delete directory */
+#define SMBopen 0x02 /* open file */
+#define SMBcreate 0x03 /* create file */
+#define SMBclose 0x04 /* close file */
+#define SMBflush 0x05 /* flush file */
+#define SMBunlink 0x06 /* delete file */
+#define SMBmv 0x07 /* rename file */
+#define SMBgetatr 0x08 /* get file attributes */
+#define SMBsetatr 0x09 /* set file attributes */
+#define SMBread 0x0A /* read from file */
+#define SMBwrite 0x0B /* write to file */
+#define SMBlock 0x0C /* lock byte range */
+#define SMBunlock 0x0D /* unlock byte range */
+#define SMBctemp 0x0E /* create temporary file */
+#define SMBmknew 0x0F /* make new file */
+#define SMBchkpth 0x10 /* check directory path */
+#define SMBexit 0x11 /* process exit */
+#define SMBlseek 0x12 /* seek */
+#define SMBtcon 0x70 /* tree connect */
+#define SMBtconX 0x75 /* tree connect and X*/
+#define SMBtdis 0x71 /* tree disconnect */
+#define SMBnegprot 0x72 /* negotiate protocol */
+#define SMBdskattr 0x80 /* get disk attributes */
+#define SMBsearch 0x81 /* search directory */
+#define SMBsplopen 0xC0 /* open print spool file */
+#define SMBsplwr 0xC1 /* write to print spool file */
+#define SMBsplclose 0xC2 /* close print spool file */
+#define SMBsplretq 0xC3 /* return print queue */
+#define SMBsends 0xD0 /* send single block message */
+#define SMBsendb 0xD1 /* send broadcast message */
+#define SMBfwdname 0xD2 /* forward user name */
+#define SMBcancelf 0xD3 /* cancel forward */
+#define SMBgetmac 0xD4 /* get machine name */
+#define SMBsendstrt 0xD5 /* send start of multi-block message */
+#define SMBsendend 0xD6 /* send end of multi-block message */
+#define SMBsendtxt 0xD7 /* send text of multi-block message */
+
+/* Core+ protocol */
+#define SMBlockread 0x13 /* Lock a range and read */
+#define SMBwriteunlock 0x14 /* Unlock a range then write */
+#define SMBreadbraw 0x1a /* read a block of data with no smb header */
+#define SMBwritebraw 0x1d /* write a block of data with no smb header */
+#define SMBwritec 0x20 /* secondary write request */
+#define SMBwriteclose 0x2c /* write a file then close it */
+
+/* dos extended protocol */
+#define SMBreadBraw 0x1A /* read block raw */
+#define SMBreadBmpx 0x1B /* read block multiplexed */
+#define SMBreadBs 0x1C /* read block (secondary response) */
+#define SMBwriteBraw 0x1D /* write block raw */
+#define SMBwriteBmpx 0x1E /* write block multiplexed */
+#define SMBwriteBs 0x1F /* write block (secondary request) */
+#define SMBwriteC 0x20 /* write complete response */
+#define SMBsetattrE 0x22 /* set file attributes expanded */
+#define SMBgetattrE 0x23 /* get file attributes expanded */
+#define SMBlockingX 0x24 /* lock/unlock byte ranges and X */
+#define SMBtrans 0x25 /* transaction - name, bytes in/out */
+#define SMBtranss 0x26 /* transaction (secondary request/response) */
+#define SMBioctl 0x27 /* IOCTL */
+#define SMBioctls 0x28 /* IOCTL (secondary request/response) */
+#define SMBcopy 0x29 /* copy */
+#define SMBmove 0x2A /* move */
+#define SMBecho 0x2B /* echo */
+#define SMBopenX 0x2D /* open and X */
+#define SMBreadX 0x2E /* read and X */
+#define SMBwriteX 0x2F /* write and X */
+#define SMBsesssetupX 0x73 /* Session Set Up & X (including User Logon) */
+#define SMBtconX 0x75 /* tree connect and X */
+#define SMBffirst 0x82 /* find first */
+#define SMBfunique 0x83 /* find unique */
+#define SMBfclose 0x84 /* find close */
+#define SMBinvalid 0xFE /* invalid command */
+
+
+/* Extended 2.0 protocol */
+#define SMBtrans2 0x32 /* TRANS2 protocol set */
+#define SMBtranss2 0x33 /* TRANS2 protocol set, secondary command */
+#define SMBfindclose 0x34 /* Terminate a TRANSACT2_FINDFIRST */
+#define SMBfindnclose 0x35 /* Terminate a TRANSACT2_FINDNOTIFYFIRST */
+#define SMBulogoffX 0x74 /* user logoff */
+
+/* these are the TRANS2 sub commands */
+#define TRANSACT2_OPEN 0
+#define TRANSACT2_FINDFIRST 1
+#define TRANSACT2_FINDNEXT 2
+#define TRANSACT2_QFSINFO 3
+#define TRANSACT2_SETFSINFO 4
+#define TRANSACT2_QPATHINFO 5
+#define TRANSACT2_SETPATHINFO 6
+#define TRANSACT2_QFILEINFO 7
+#define TRANSACT2_SETFILEINFO 8
+#define TRANSACT2_FSCTL 9
+#define TRANSACT2_IOCTL 10
+#define TRANSACT2_FINDNOTIFYFIRST 11
+#define TRANSACT2_FINDNOTIFYNEXT 12
+#define TRANSACT2_MKDIR 13
+
+/* Information Levels - Shared? */
+#define SMB_INFO_STANDARD 1
+#define SMB_INFO_QUERY_EA_SIZE 2
+#define SMB_INFO_QUERY_EAS_FROM_LIST 3
+#define SMB_INFO_QUERY_ALL_EAS 4
+#define SMB_INFO_IS_NAME_VALID 6
+
+/* Information Levels - TRANSACT2_FINDFIRST */
+#define SMB_FIND_FILE_DIRECTORY_INFO 0x101
+#define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
+#define SMB_FIND_FILE_NAMES_INFO 0x103
+#define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
+
+/* Information Levels - TRANSACT2_QPATHINFO */
+#define SMB_QUERY_FILE_BASIC_INFO 0x101
+#define SMB_QUERY_FILE_STANDARD_INFO 0x102
+#define SMB_QUERY_FILE_EA_INFO 0x103
+#define SMB_QUERY_FILE_NAME_INFO 0x104
+#define SMB_QUERY_FILE_ALL_INFO 0x107
+#define SMB_QUERY_FILE_ALT_NAME_INFO 0x108
+#define SMB_QUERY_FILE_STREAM_INFO 0x109
+#define SMB_QUERY_FILE_COMPRESSION_INFO 0x10b
+
+/* Information Levels - TRANSACT2_SETFILEINFO */
+#define SMB_SET_FILE_BASIC_INFO 0x101
+#define SMB_SET_FILE_DISPOSITION_INFO 0x102
+#define SMB_SET_FILE_ALLOCATION_INFO 0x103
+#define SMB_SET_FILE_END_OF_FILE_INFO 0x104
+
+/* smb_flg field flags */
+#define SMB_FLAGS_SUPPORT_LOCKREAD 0x01
+#define SMB_FLAGS_CLIENT_BUF_AVAIL 0x02
+#define SMB_FLAGS_RESERVED 0x04
+#define SMB_FLAGS_CASELESS_PATHNAMES 0x08
+#define SMB_FLAGS_CANONICAL_PATHNAMES 0x10
+#define SMB_FLAGS_REQUEST_OPLOCK 0x20
+#define SMB_FLAGS_REQUEST_BATCH_OPLOCK 0x40
+#define SMB_FLAGS_REPLY 0x80
+
+/* smb_flg2 field flags (samba-2.2.0/source/include/smb.h) */
+#define SMB_FLAGS2_LONG_PATH_COMPONENTS 0x0001
+#define SMB_FLAGS2_EXTENDED_ATTRIBUTES 0x0002
+#define SMB_FLAGS2_DFS_PATHNAMES 0x1000
+#define SMB_FLAGS2_READ_PERMIT_NO_EXECUTE 0x2000
+#define SMB_FLAGS2_32_BIT_ERROR_CODES 0x4000
+#define SMB_FLAGS2_UNICODE_STRINGS 0x8000
+
+
+/*
+ * UNIX stuff (from samba trans2.h)
+ */
+#define MIN_UNIX_INFO_LEVEL 0x200
+#define MAX_UNIX_INFO_LEVEL 0x2FF
+#define SMB_FIND_FILE_UNIX 0x202
+#define SMB_QUERY_FILE_UNIX_BASIC 0x200
+#define SMB_QUERY_FILE_UNIX_LINK 0x201
+#define SMB_QUERY_FILE_UNIX_HLINK 0x202
+#define SMB_SET_FILE_UNIX_BASIC 0x200
+#define SMB_SET_FILE_UNIX_LINK 0x201
+#define SMB_SET_FILE_UNIX_HLINK 0x203
+#define SMB_QUERY_CIFS_UNIX_INFO 0x200
+
+/* values which means "don't change it" */
+#define SMB_MODE_NO_CHANGE 0xFFFFFFFF
+#define SMB_UID_NO_CHANGE 0xFFFFFFFF
+#define SMB_GID_NO_CHANGE 0xFFFFFFFF
+#define SMB_TIME_NO_CHANGE 0xFFFFFFFFFFFFFFFFULL
+#define SMB_SIZE_NO_CHANGE 0xFFFFFFFFFFFFFFFFULL
+
+/* UNIX filetype mappings. */
+#define UNIX_TYPE_FILE 0
+#define UNIX_TYPE_DIR 1
+#define UNIX_TYPE_SYMLINK 2
+#define UNIX_TYPE_CHARDEV 3
+#define UNIX_TYPE_BLKDEV 4
+#define UNIX_TYPE_FIFO 5
+#define UNIX_TYPE_SOCKET 6
+#define UNIX_TYPE_UNKNOWN 0xFFFFFFFF
+
+#endif /* _SMBNO_H_ */
--- /dev/null
+/*
+ * sock.c
+ *
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/fs.h>
+#include <linux/time.h>
+#include <linux/errno.h>
+#include <linux/socket.h>
+#include <linux/fcntl.h>
+#include <linux/file.h>
+#include <linux/in.h>
+#include <linux/net.h>
+#include <linux/mm.h>
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+#include <net/scm.h>
+#include <net/tcp_states.h>
+#include <net/ip.h>
+
+#include <asm/uaccess.h>
+#include <asm/ioctls.h>
+
+#include "smb_fs.h"
+#include "smb.h"
+#include "smbno.h"
+#include "smb_debug.h"
+#include "proto.h"
+#include "request.h"
+
+
+static int
+_recvfrom(struct socket *socket, unsigned char *ubuf, int size, unsigned flags)
+{
+ struct kvec iov = {ubuf, size};
+ struct msghdr msg = {.msg_flags = flags};
+ msg.msg_flags |= MSG_DONTWAIT | MSG_NOSIGNAL;
+ return kernel_recvmsg(socket, &msg, &iov, 1, size, msg.msg_flags);
+}
+
+/*
+ * Return the server this socket belongs to
+ */
+static struct smb_sb_info *
+server_from_socket(struct socket *socket)
+{
+ return socket->sk->sk_user_data;
+}
+
+/*
+ * Called when there is data on the socket.
+ */
+void
+smb_data_ready(struct sock *sk, int len)
+{
+ struct smb_sb_info *server = server_from_socket(sk->sk_socket);
+ void (*data_ready)(struct sock *, int) = server->data_ready;
+
+ data_ready(sk, len);
+ VERBOSE("(%p, %d)\n", sk, len);
+ smbiod_wake_up();
+}
+
+int
+smb_valid_socket(struct inode * inode)
+{
+ return (inode && S_ISSOCK(inode->i_mode) &&
+ SOCKET_I(inode)->type == SOCK_STREAM);
+}
+
+static struct socket *
+server_sock(struct smb_sb_info *server)
+{
+ struct file *file;
+
+ if (server && (file = server->sock_file))
+ {
+#ifdef SMBFS_PARANOIA
+ if (!smb_valid_socket(file->f_path.dentry->d_inode))
+ PARANOIA("bad socket!\n");
+#endif
+ return SOCKET_I(file->f_path.dentry->d_inode);
+ }
+ return NULL;
+}
+
+void
+smb_close_socket(struct smb_sb_info *server)
+{
+ struct file * file = server->sock_file;
+
+ if (file) {
+ struct socket *sock = server_sock(server);
+
+ VERBOSE("closing socket %p\n", sock);
+ sock->sk->sk_data_ready = server->data_ready;
+ server->sock_file = NULL;
+ fput(file);
+ }
+}
+
+static int
+smb_get_length(struct socket *socket, unsigned char *header)
+{
+ int result;
+
+ result = _recvfrom(socket, header, 4, MSG_PEEK);
+ if (result == -EAGAIN)
+ return -ENODATA;
+ if (result < 0) {
+ PARANOIA("recv error = %d\n", -result);
+ return result;
+ }
+ if (result < 4)
+ return -ENODATA;
+
+ switch (header[0]) {
+ case 0x00:
+ case 0x82:
+ break;
+
+ case 0x85:
+ DEBUG1("Got SESSION KEEP ALIVE\n");
+ _recvfrom(socket, header, 4, 0); /* read away */
+ return -ENODATA;
+
+ default:
+ PARANOIA("Invalid NBT packet, code=%x\n", header[0]);
+ return -EIO;
+ }
+
+ /* The length in the RFC NB header is the raw data length */
+ return smb_len(header);
+}
+
+int
+smb_recv_available(struct smb_sb_info *server)
+{
+ mm_segment_t oldfs;
+ int avail, err;
+ struct socket *sock = server_sock(server);
+
+ oldfs = get_fs();
+ set_fs(get_ds());
+ err = sock->ops->ioctl(sock, SIOCINQ, (unsigned long) &avail);
+ set_fs(oldfs);
+ return (err >= 0) ? avail : err;
+}
+
+/*
+ * Adjust the kvec to move on 'n' bytes (from nfs/sunrpc)
+ */
+static int
+smb_move_iov(struct kvec **data, size_t *num, struct kvec *vec, unsigned amount)
+{
+ struct kvec *iv = *data;
+ int i;
+ int len;
+
+ /*
+ * Eat any sent kvecs
+ */
+ while (iv->iov_len <= amount) {
+ amount -= iv->iov_len;
+ iv++;
+ (*num)--;
+ }
+
+ /*
+ * And chew down the partial one
+ */
+ vec[0].iov_len = iv->iov_len-amount;
+ vec[0].iov_base =((unsigned char *)iv->iov_base)+amount;
+ iv++;
+
+ len = vec[0].iov_len;
+
+ /*
+ * And copy any others
+ */
+ for (i = 1; i < *num; i++) {
+ vec[i] = *iv++;
+ len += vec[i].iov_len;
+ }
+
+ *data = vec;
+ return len;
+}
+
+/*
+ * smb_receive_header
+ * Only called by the smbiod thread.
+ */
+int
+smb_receive_header(struct smb_sb_info *server)
+{
+ struct socket *sock;
+ int result = 0;
+ unsigned char peek_buf[4];
+
+ result = -EIO;
+ sock = server_sock(server);
+ if (!sock)
+ goto out;
+ if (sock->sk->sk_state != TCP_ESTABLISHED)
+ goto out;
+
+ if (!server->smb_read) {
+ result = smb_get_length(sock, peek_buf);
+ if (result < 0) {
+ if (result == -ENODATA)
+ result = 0;
+ goto out;
+ }
+ server->smb_len = result + 4;
+
+ if (server->smb_len < SMB_HEADER_LEN) {
+ PARANOIA("short packet: %d\n", result);
+ server->rstate = SMB_RECV_DROP;
+ result = -EIO;
+ goto out;
+ }
+ if (server->smb_len > SMB_MAX_PACKET_SIZE) {
+ PARANOIA("long packet: %d\n", result);
+ server->rstate = SMB_RECV_DROP;
+ result = -EIO;
+ goto out;
+ }
+ }
+
+ result = _recvfrom(sock, server->header + server->smb_read,
+ SMB_HEADER_LEN - server->smb_read, 0);
+ VERBOSE("_recvfrom: %d\n", result);
+ if (result < 0) {
+ VERBOSE("receive error: %d\n", result);
+ goto out;
+ }
+ server->smb_read += result;
+
+ if (server->smb_read == SMB_HEADER_LEN)
+ server->rstate = SMB_RECV_HCOMPLETE;
+out:
+ return result;
+}
+
+static char drop_buffer[PAGE_SIZE];
+
+/*
+ * smb_receive_drop - read and throw away the data
+ * Only called by the smbiod thread.
+ *
+ * FIXME: we are in the kernel, could we just tell the socket that we want
+ * to drop stuff from the buffer?
+ */
+int
+smb_receive_drop(struct smb_sb_info *server)
+{
+ struct socket *sock;
+ unsigned int flags;
+ struct kvec iov;
+ struct msghdr msg;
+ int rlen = smb_len(server->header) - server->smb_read + 4;
+ int result = -EIO;
+
+ if (rlen > PAGE_SIZE)
+ rlen = PAGE_SIZE;
+
+ sock = server_sock(server);
+ if (!sock)
+ goto out;
+ if (sock->sk->sk_state != TCP_ESTABLISHED)
+ goto out;
+
+ flags = MSG_DONTWAIT | MSG_NOSIGNAL;
+ iov.iov_base = drop_buffer;
+ iov.iov_len = PAGE_SIZE;
+ msg.msg_flags = flags;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_control = NULL;
+
+ result = kernel_recvmsg(sock, &msg, &iov, 1, rlen, flags);
+
+ VERBOSE("read: %d\n", result);
+ if (result < 0) {
+ VERBOSE("receive error: %d\n", result);
+ goto out;
+ }
+ server->smb_read += result;
+
+ if (server->smb_read >= server->smb_len)
+ server->rstate = SMB_RECV_END;
+
+out:
+ return result;
+}
+
+/*
+ * smb_receive
+ * Only called by the smbiod thread.
+ */
+int
+smb_receive(struct smb_sb_info *server, struct smb_request *req)
+{
+ struct socket *sock;
+ unsigned int flags;
+ struct kvec iov[4];
+ struct kvec *p = req->rq_iov;
+ size_t num = req->rq_iovlen;
+ struct msghdr msg;
+ int rlen;
+ int result = -EIO;
+
+ sock = server_sock(server);
+ if (!sock)
+ goto out;
+ if (sock->sk->sk_state != TCP_ESTABLISHED)
+ goto out;
+
+ flags = MSG_DONTWAIT | MSG_NOSIGNAL;
+ msg.msg_flags = flags;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_control = NULL;
+
+ /* Dont repeat bytes and count available bufferspace */
+ rlen = min_t(int, smb_move_iov(&p, &num, iov, req->rq_bytes_recvd),
+ (req->rq_rlen - req->rq_bytes_recvd));
+
+ result = kernel_recvmsg(sock, &msg, p, num, rlen, flags);
+
+ VERBOSE("read: %d\n", result);
+ if (result < 0) {
+ VERBOSE("receive error: %d\n", result);
+ goto out;
+ }
+ req->rq_bytes_recvd += result;
+ server->smb_read += result;
+
+out:
+ return result;
+}
+
+/*
+ * Try to send a SMB request. This may return after sending only parts of the
+ * request. SMB_REQ_TRANSMITTED will be set if a request was fully sent.
+ *
+ * Parts of this was taken from xprt_sendmsg from net/sunrpc/xprt.c
+ */
+int
+smb_send_request(struct smb_request *req)
+{
+ struct smb_sb_info *server = req->rq_server;
+ struct socket *sock;
+ struct msghdr msg = {.msg_flags = MSG_NOSIGNAL | MSG_DONTWAIT};
+ int slen = req->rq_slen - req->rq_bytes_sent;
+ int result = -EIO;
+ struct kvec iov[4];
+ struct kvec *p = req->rq_iov;
+ size_t num = req->rq_iovlen;
+
+ sock = server_sock(server);
+ if (!sock)
+ goto out;
+ if (sock->sk->sk_state != TCP_ESTABLISHED)
+ goto out;
+
+ /* Dont repeat bytes */
+ if (req->rq_bytes_sent)
+ smb_move_iov(&p, &num, iov, req->rq_bytes_sent);
+
+ result = kernel_sendmsg(sock, &msg, p, num, slen);
+
+ if (result >= 0) {
+ req->rq_bytes_sent += result;
+ if (req->rq_bytes_sent >= req->rq_slen)
+ req->rq_flags |= SMB_REQ_TRANSMITTED;
+ }
+out:
+ return result;
+}
--- /dev/null
+/*
+ * symlink.c
+ *
+ * Copyright (C) 2002 by John Newbigin
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/net.h>
+#include <linux/namei.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include "smbno.h"
+#include "smb_fs.h"
+#include "smb_debug.h"
+#include "proto.h"
+
+int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname)
+{
+ DEBUG1("create symlink %s -> %s/%s\n", oldname, DENTRY_PATH(dentry));
+
+ return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
+}
+
+static void *smb_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+ char *link = __getname();
+ DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
+
+ if (!link) {
+ link = ERR_PTR(-ENOMEM);
+ } else {
+ int len = smb_proc_read_link(server_from_dentry(dentry),
+ dentry, link, PATH_MAX - 1);
+ if (len < 0) {
+ __putname(link);
+ link = ERR_PTR(len);
+ } else {
+ link[len] = 0;
+ }
+ }
+ nd_set_link(nd, link);
+ return NULL;
+}
+
+static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+{
+ char *s = nd_get_link(nd);
+ if (!IS_ERR(s))
+ __putname(s);
+}
+
+const struct inode_operations smb_link_inode_operations =
+{
+ .readlink = generic_readlink,
+ .follow_link = smb_follow_link,
+ .put_link = smb_put_link,
+};
default y
source "net/sunrpc/Kconfig"
-source "fs/smbfs/Kconfig"
source "fs/ceph/Kconfig"
source "fs/cifs/Kconfig"
source "fs/ncpfs/Kconfig"
obj-$(CONFIG_LOCKD) += lockd/
obj-$(CONFIG_NLS) += nls/
obj-$(CONFIG_SYSV_FS) += sysv/
-obj-$(CONFIG_SMB_FS) += smbfs/
obj-$(CONFIG_CIFS) += cifs/
obj-$(CONFIG_NCP_FS) += ncpfs/
obj-$(CONFIG_HPFS_FS) += hpfs/
#include <linux/vfs.h>
#include <linux/ioctl.h>
#include <linux/init.h>
-#include <linux/smb.h>
-#include <linux/smb_mount.h>
#include <linux/ncp_mount.h>
#include <linux/nfs4_mount.h>
#include <linux/syscalls.h>
return raw_data;
}
-struct compat_smb_mount_data {
- compat_int_t version;
- __compat_uid_t mounted_uid;
- __compat_uid_t uid;
- __compat_gid_t gid;
- compat_mode_t file_mode;
- compat_mode_t dir_mode;
-};
-
-static void *do_smb_super_data_conv(void *raw_data)
-{
- struct smb_mount_data *s = raw_data;
- struct compat_smb_mount_data *c_s = raw_data;
-
- if (c_s->version != SMB_MOUNT_OLDVERSION)
- goto out;
- s->dir_mode = c_s->dir_mode;
- s->file_mode = c_s->file_mode;
- s->gid = c_s->gid;
- s->uid = c_s->uid;
- s->mounted_uid = c_s->mounted_uid;
- out:
- return raw_data;
-}
struct compat_nfs_string {
compat_uint_t len;
return 0;
}
-#define SMBFS_NAME "smbfs"
#define NCPFS_NAME "ncpfs"
#define NFS4_NAME "nfs4"
retval = -EINVAL;
if (kernel_type && data_page) {
- if (!strcmp(kernel_type, SMBFS_NAME)) {
- do_smb_super_data_conv((void *)data_page);
- } else if (!strcmp(kernel_type, NCPFS_NAME)) {
+ if (!strcmp(kernel_type, NCPFS_NAME)) {
do_ncp_super_data_conv((void *)data_page);
} else if (!strcmp(kernel_type, NFS4_NAME)) {
if (do_nfs4_super_data_conv((void *) data_page))
#include <linux/videodev.h>
#include <linux/netdevice.h>
#include <linux/raw.h>
-#include <linux/smb_fs.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/rtc.h>
#endif /* CONFIG_BLOCK */
-static int do_smb_getmountuid(unsigned int fd, unsigned int cmd,
- compat_uid_t __user *argp)
-{
- mm_segment_t old_fs = get_fs();
- __kernel_uid_t kuid;
- int err;
-
- cmd = SMB_IOC_GETMOUNTUID;
-
- set_fs(KERNEL_DS);
- err = sys_ioctl(fd, cmd, (unsigned long)&kuid);
- set_fs(old_fs);
-
- if (err >= 0)
- err = put_user(kuid, argp);
-
- return err;
-}
-
/* Bluetooth ioctls */
#define HCIUARTSETPROTO _IOW('U', 200, int)
#define HCIUARTGETPROTO _IOR('U', 201, int)
/* Raw devices */
COMPATIBLE_IOCTL(RAW_SETBIND)
COMPATIBLE_IOCTL(RAW_GETBIND)
-/* SMB ioctls which do not need any translations */
-COMPATIBLE_IOCTL(SMB_IOC_NEWCONN)
/* Watchdog */
COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
case RAW_GETBIND:
return raw_ioctl(fd, cmd, argp);
#endif
- /* One SMB ioctl needs translations. */
-#define SMB_IOC_GETMOUNTUID_32 _IOR('u', 1, compat_uid_t)
- case SMB_IOC_GETMOUNTUID_32:
- return do_smb_getmountuid(fd, cmd, argp);
/* Serial */
case TIOCGSERIAL:
case TIOCSSERIAL:
+++ /dev/null
-config SMB_FS
- tristate "SMB file system support (OBSOLETE, please use CIFS)"
- depends on INET
- select NLS
- help
- SMB (Server Message Block) is the protocol Windows for Workgroups
- (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
- files and printers over local networks. Saying Y here allows you to
- mount their file systems (often called "shares" in this context) and
- access them just like any other Unix directory. Currently, this
- works only if the Windows machines use TCP/IP as the underlying
- transport protocol, and not NetBEUI. For details, read
- <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
- available from <http://www.tldp.org/docs.html#howto>.
-
- Note: if you just want your box to act as an SMB *server* and make
- files and printing services available to Windows clients (which need
- to have a TCP/IP stack), you don't need to say Y here; you can use
- the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
- for that.
-
- General information about how to connect Linux, Windows machines and
- Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
-
- To compile the SMB support as a module, choose M here:
- the module will be called smbfs. Most people say N, however.
-
-config SMB_NLS_DEFAULT
- bool "Use a default NLS"
- depends on SMB_FS
- help
- Enabling this will make smbfs use nls translations by default. You
- need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
- settings and you need to give the default nls for the SMB server as
- CONFIG_SMB_NLS_REMOTE.
-
- The nls settings can be changed at mount time, if your smbmount
- supports that, using the codepage and iocharset parameters.
-
- smbmount from samba 2.2.0 or later supports this.
-
-config SMB_NLS_REMOTE
- string "Default Remote NLS Option"
- depends on SMB_NLS_DEFAULT
- default "cp437"
- help
- This setting allows you to specify a default value for which
- codepage the server uses. If this field is left blank no
- translations will be done by default. The local codepage/charset
- default to CONFIG_NLS_DEFAULT.
-
- The nls settings can be changed at mount time, if your smbmount
- supports that, using the codepage and iocharset parameters.
-
- smbmount from samba 2.2.0 or later supports this.
+++ /dev/null
-#
-# Makefile for the linux smb-filesystem routines.
-#
-
-obj-$(CONFIG_SMB_FS) += smbfs.o
-
-smbfs-objs := proc.o dir.o cache.o sock.o inode.o file.o ioctl.o getopt.o \
- symlink.o smbiod.o request.o
-
-# If you want debugging output, you may add these flags to the EXTRA_CFLAGS
-# SMBFS_PARANOIA should normally be enabled.
-
-EXTRA_CFLAGS += -DSMBFS_PARANOIA
-#EXTRA_CFLAGS += -DSMBFS_DEBUG
-#EXTRA_CFLAGS += -DSMBFS_DEBUG_VERBOSE
-#EXTRA_CFLAGS += -DDEBUG_SMB_TIMESTAMP
-#EXTRA_CFLAGS += -Werror
-
+++ /dev/null
-/*
- * cache.c
- *
- * Copyright (C) 1997 by Bill Hawes
- *
- * Routines to support directory cacheing using the page cache.
- * This cache code is almost directly taken from ncpfs.
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/time.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smb_fs.h>
-#include <linux/pagemap.h>
-#include <linux/net.h>
-
-#include <asm/page.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-
-/*
- * Force the next attempt to use the cache to be a timeout.
- * If we can't find the page that's fine, it will cause a refresh.
- */
-void
-smb_invalid_dir_cache(struct inode * dir)
-{
- struct smb_sb_info *server = server_from_inode(dir);
- union smb_dir_cache *cache = NULL;
- struct page *page = NULL;
-
- page = grab_cache_page(&dir->i_data, 0);
- if (!page)
- goto out;
-
- if (!PageUptodate(page))
- goto out_unlock;
-
- cache = kmap(page);
- cache->head.time = jiffies - SMB_MAX_AGE(server);
-
- kunmap(page);
- SetPageUptodate(page);
-out_unlock:
- unlock_page(page);
- page_cache_release(page);
-out:
- return;
-}
-
-/*
- * Mark all dentries for 'parent' as invalid, forcing them to be re-read
- */
-void
-smb_invalidate_dircache_entries(struct dentry *parent)
-{
- struct smb_sb_info *server = server_from_dentry(parent);
- struct list_head *next;
- struct dentry *dentry;
-
- spin_lock(&dcache_lock);
- next = parent->d_subdirs.next;
- while (next != &parent->d_subdirs) {
- dentry = list_entry(next, struct dentry, d_u.d_child);
- dentry->d_fsdata = NULL;
- smb_age_dentry(server, dentry);
- next = next->next;
- }
- spin_unlock(&dcache_lock);
-}
-
-/*
- * dget, but require that fpos and parent matches what the dentry contains.
- * dentry is not known to be a valid pointer at entry.
- */
-struct dentry *
-smb_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos)
-{
- struct dentry *dent = dentry;
- struct list_head *next;
-
- if (d_validate(dent, parent)) {
- if (dent->d_name.len <= SMB_MAXNAMELEN &&
- (unsigned long)dent->d_fsdata == fpos) {
- if (!dent->d_inode) {
- dput(dent);
- dent = NULL;
- }
- return dent;
- }
- dput(dent);
- }
-
- /* If a pointer is invalid, we search the dentry. */
- spin_lock(&dcache_lock);
- next = parent->d_subdirs.next;
- while (next != &parent->d_subdirs) {
- dent = list_entry(next, struct dentry, d_u.d_child);
- if ((unsigned long)dent->d_fsdata == fpos) {
- if (dent->d_inode)
- dget_locked(dent);
- else
- dent = NULL;
- goto out_unlock;
- }
- next = next->next;
- }
- dent = NULL;
-out_unlock:
- spin_unlock(&dcache_lock);
- return dent;
-}
-
-
-/*
- * Create dentry/inode for this file and add it to the dircache.
- */
-int
-smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
- struct smb_cache_control *ctrl, struct qstr *qname,
- struct smb_fattr *entry)
-{
- struct dentry *newdent, *dentry = filp->f_path.dentry;
- struct inode *newino, *inode = dentry->d_inode;
- struct smb_cache_control ctl = *ctrl;
- int valid = 0;
- int hashed = 0;
- ino_t ino = 0;
-
- qname->hash = full_name_hash(qname->name, qname->len);
-
- if (dentry->d_op && dentry->d_op->d_hash)
- if (dentry->d_op->d_hash(dentry, qname) != 0)
- goto end_advance;
-
- newdent = d_lookup(dentry, qname);
-
- if (!newdent) {
- newdent = d_alloc(dentry, qname);
- if (!newdent)
- goto end_advance;
- } else {
- hashed = 1;
- memcpy((char *) newdent->d_name.name, qname->name,
- newdent->d_name.len);
- }
-
- if (!newdent->d_inode) {
- smb_renew_times(newdent);
- entry->f_ino = iunique(inode->i_sb, 2);
- newino = smb_iget(inode->i_sb, entry);
- if (newino) {
- smb_new_dentry(newdent);
- d_instantiate(newdent, newino);
- if (!hashed)
- d_rehash(newdent);
- }
- } else
- smb_set_inode_attr(newdent->d_inode, entry);
-
- if (newdent->d_inode) {
- ino = newdent->d_inode->i_ino;
- newdent->d_fsdata = (void *) ctl.fpos;
- smb_new_dentry(newdent);
- }
-
- if (ctl.idx >= SMB_DIRCACHE_SIZE) {
- if (ctl.page) {
- kunmap(ctl.page);
- SetPageUptodate(ctl.page);
- unlock_page(ctl.page);
- page_cache_release(ctl.page);
- }
- ctl.cache = NULL;
- ctl.idx -= SMB_DIRCACHE_SIZE;
- ctl.ofs += 1;
- ctl.page = grab_cache_page(&inode->i_data, ctl.ofs);
- if (ctl.page)
- ctl.cache = kmap(ctl.page);
- }
- if (ctl.cache) {
- ctl.cache->dentry[ctl.idx] = newdent;
- valid = 1;
- }
- dput(newdent);
-
-end_advance:
- if (!valid)
- ctl.valid = 0;
- if (!ctl.filled && (ctl.fpos == filp->f_pos)) {
- if (!ino)
- ino = find_inode_number(dentry, qname);
- if (!ino)
- ino = iunique(inode->i_sb, 2);
- ctl.filled = filldir(dirent, qname->name, qname->len,
- filp->f_pos, ino, DT_UNKNOWN);
- if (!ctl.filled)
- filp->f_pos += 1;
- }
- ctl.fpos += 1;
- ctl.idx += 1;
- *ctrl = ctl;
- return (ctl.valid || !ctl.filled);
-}
+++ /dev/null
-/*
- * dir.c
- *
- * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/time.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/smp_lock.h>
-#include <linux/ctype.h>
-#include <linux/net.h>
-#include <linux/sched.h>
-
-#include <linux/smb_fs.h>
-#include <linux/smb_mount.h>
-#include <linux/smbno.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-
-static int smb_readdir(struct file *, void *, filldir_t);
-static int smb_dir_open(struct inode *, struct file *);
-
-static struct dentry *smb_lookup(struct inode *, struct dentry *, struct nameidata *);
-static int smb_create(struct inode *, struct dentry *, int, struct nameidata *);
-static int smb_mkdir(struct inode *, struct dentry *, int);
-static int smb_rmdir(struct inode *, struct dentry *);
-static int smb_unlink(struct inode *, struct dentry *);
-static int smb_rename(struct inode *, struct dentry *,
- struct inode *, struct dentry *);
-static int smb_make_node(struct inode *,struct dentry *,int,dev_t);
-static int smb_link(struct dentry *, struct inode *, struct dentry *);
-
-const struct file_operations smb_dir_operations =
-{
- .llseek = generic_file_llseek,
- .read = generic_read_dir,
- .readdir = smb_readdir,
- .unlocked_ioctl = smb_ioctl,
- .open = smb_dir_open,
-};
-
-const struct inode_operations smb_dir_inode_operations =
-{
- .create = smb_create,
- .lookup = smb_lookup,
- .unlink = smb_unlink,
- .mkdir = smb_mkdir,
- .rmdir = smb_rmdir,
- .rename = smb_rename,
- .getattr = smb_getattr,
- .setattr = smb_notify_change,
-};
-
-const struct inode_operations smb_dir_inode_operations_unix =
-{
- .create = smb_create,
- .lookup = smb_lookup,
- .unlink = smb_unlink,
- .mkdir = smb_mkdir,
- .rmdir = smb_rmdir,
- .rename = smb_rename,
- .getattr = smb_getattr,
- .setattr = smb_notify_change,
- .symlink = smb_symlink,
- .mknod = smb_make_node,
- .link = smb_link,
-};
-
-/*
- * Read a directory, using filldir to fill the dirent memory.
- * smb_proc_readdir does the actual reading from the smb server.
- *
- * The cache code is almost directly taken from ncpfs
- */
-static int
-smb_readdir(struct file *filp, void *dirent, filldir_t filldir)
-{
- struct dentry *dentry = filp->f_path.dentry;
- struct inode *dir = dentry->d_inode;
- struct smb_sb_info *server = server_from_dentry(dentry);
- union smb_dir_cache *cache = NULL;
- struct smb_cache_control ctl;
- struct page *page = NULL;
- int result;
-
- ctl.page = NULL;
- ctl.cache = NULL;
-
- VERBOSE("reading %s/%s, f_pos=%d\n",
- DENTRY_PATH(dentry), (int) filp->f_pos);
-
- result = 0;
-
- lock_kernel();
-
- switch ((unsigned int) filp->f_pos) {
- case 0:
- if (filldir(dirent, ".", 1, 0, dir->i_ino, DT_DIR) < 0)
- goto out;
- filp->f_pos = 1;
- /* fallthrough */
- case 1:
- if (filldir(dirent, "..", 2, 1, parent_ino(dentry), DT_DIR) < 0)
- goto out;
- filp->f_pos = 2;
- }
-
- /*
- * Make sure our inode is up-to-date.
- */
- result = smb_revalidate_inode(dentry);
- if (result)
- goto out;
-
-
- page = grab_cache_page(&dir->i_data, 0);
- if (!page)
- goto read_really;
-
- ctl.cache = cache = kmap(page);
- ctl.head = cache->head;
-
- if (!PageUptodate(page) || !ctl.head.eof) {
- VERBOSE("%s/%s, page uptodate=%d, eof=%d\n",
- DENTRY_PATH(dentry), PageUptodate(page),ctl.head.eof);
- goto init_cache;
- }
-
- if (filp->f_pos == 2) {
- if (jiffies - ctl.head.time >= SMB_MAX_AGE(server))
- goto init_cache;
-
- /*
- * N.B. ncpfs checks mtime of dentry too here, we don't.
- * 1. common smb servers do not update mtime on dir changes
- * 2. it requires an extra smb request
- * (revalidate has the same timeout as ctl.head.time)
- *
- * Instead smbfs invalidates its own cache on local changes
- * and remote changes are not seen until timeout.
- */
- }
-
- if (filp->f_pos > ctl.head.end)
- goto finished;
-
- ctl.fpos = filp->f_pos + (SMB_DIRCACHE_START - 2);
- ctl.ofs = ctl.fpos / SMB_DIRCACHE_SIZE;
- ctl.idx = ctl.fpos % SMB_DIRCACHE_SIZE;
-
- for (;;) {
- if (ctl.ofs != 0) {
- ctl.page = find_lock_page(&dir->i_data, ctl.ofs);
- if (!ctl.page)
- goto invalid_cache;
- ctl.cache = kmap(ctl.page);
- if (!PageUptodate(ctl.page))
- goto invalid_cache;
- }
- while (ctl.idx < SMB_DIRCACHE_SIZE) {
- struct dentry *dent;
- int res;
-
- dent = smb_dget_fpos(ctl.cache->dentry[ctl.idx],
- dentry, filp->f_pos);
- if (!dent)
- goto invalid_cache;
-
- res = filldir(dirent, dent->d_name.name,
- dent->d_name.len, filp->f_pos,
- dent->d_inode->i_ino, DT_UNKNOWN);
- dput(dent);
- if (res)
- goto finished;
- filp->f_pos += 1;
- ctl.idx += 1;
- if (filp->f_pos > ctl.head.end)
- goto finished;
- }
- if (ctl.page) {
- kunmap(ctl.page);
- SetPageUptodate(ctl.page);
- unlock_page(ctl.page);
- page_cache_release(ctl.page);
- ctl.page = NULL;
- }
- ctl.idx = 0;
- ctl.ofs += 1;
- }
-invalid_cache:
- if (ctl.page) {
- kunmap(ctl.page);
- unlock_page(ctl.page);
- page_cache_release(ctl.page);
- ctl.page = NULL;
- }
- ctl.cache = cache;
-init_cache:
- smb_invalidate_dircache_entries(dentry);
- ctl.head.time = jiffies;
- ctl.head.eof = 0;
- ctl.fpos = 2;
- ctl.ofs = 0;
- ctl.idx = SMB_DIRCACHE_START;
- ctl.filled = 0;
- ctl.valid = 1;
-read_really:
- result = server->ops->readdir(filp, dirent, filldir, &ctl);
- if (result == -ERESTARTSYS && page)
- ClearPageUptodate(page);
- if (ctl.idx == -1)
- goto invalid_cache; /* retry */
- ctl.head.end = ctl.fpos - 1;
- ctl.head.eof = ctl.valid;
-finished:
- if (page) {
- cache->head = ctl.head;
- kunmap(page);
- if (result != -ERESTARTSYS)
- SetPageUptodate(page);
- unlock_page(page);
- page_cache_release(page);
- }
- if (ctl.page) {
- kunmap(ctl.page);
- SetPageUptodate(ctl.page);
- unlock_page(ctl.page);
- page_cache_release(ctl.page);
- }
-out:
- unlock_kernel();
- return result;
-}
-
-static int
-smb_dir_open(struct inode *dir, struct file *file)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct smb_sb_info *server;
- int error = 0;
-
- VERBOSE("(%s/%s)\n", dentry->d_parent->d_name.name,
- file->f_path.dentry->d_name.name);
-
- /*
- * Directory timestamps in the core protocol aren't updated
- * when a file is added, so we give them a very short TTL.
- */
- lock_kernel();
- server = server_from_dentry(dentry);
- if (server->opt.protocol < SMB_PROTOCOL_LANMAN2) {
- unsigned long age = jiffies - SMB_I(dir)->oldmtime;
- if (age > 2*HZ)
- smb_invalid_dir_cache(dir);
- }
-
- /*
- * Note: in order to allow the smbmount process to open the
- * mount point, we only revalidate if the connection is valid or
- * if the process is trying to access something other than the root.
- */
- if (server->state == CONN_VALID || !IS_ROOT(dentry))
- error = smb_revalidate_inode(dentry);
- unlock_kernel();
- return error;
-}
-
-/*
- * Dentry operations routines
- */
-static int smb_lookup_validate(struct dentry *, struct nameidata *);
-static int smb_hash_dentry(struct dentry *, struct qstr *);
-static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
-static int smb_delete_dentry(struct dentry *);
-
-static const struct dentry_operations smbfs_dentry_operations =
-{
- .d_revalidate = smb_lookup_validate,
- .d_hash = smb_hash_dentry,
- .d_compare = smb_compare_dentry,
- .d_delete = smb_delete_dentry,
-};
-
-static const struct dentry_operations smbfs_dentry_operations_case =
-{
- .d_revalidate = smb_lookup_validate,
- .d_delete = smb_delete_dentry,
-};
-
-
-/*
- * This is the callback when the dcache has a lookup hit.
- */
-static int
-smb_lookup_validate(struct dentry * dentry, struct nameidata *nd)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- struct inode * inode = dentry->d_inode;
- unsigned long age = jiffies - dentry->d_time;
- int valid;
-
- /*
- * The default validation is based on dentry age:
- * we believe in dentries for a few seconds. (But each
- * successful server lookup renews the timestamp.)
- */
- valid = (age <= SMB_MAX_AGE(server));
-#ifdef SMBFS_DEBUG_VERBOSE
- if (!valid)
- VERBOSE("%s/%s not valid, age=%lu\n",
- DENTRY_PATH(dentry), age);
-#endif
-
- if (inode) {
- lock_kernel();
- if (is_bad_inode(inode)) {
- PARANOIA("%s/%s has dud inode\n", DENTRY_PATH(dentry));
- valid = 0;
- } else if (!valid)
- valid = (smb_revalidate_inode(dentry) == 0);
- unlock_kernel();
- } else {
- /*
- * What should we do for negative dentries?
- */
- }
- return valid;
-}
-
-static int
-smb_hash_dentry(struct dentry *dir, struct qstr *this)
-{
- unsigned long hash;
- int i;
-
- hash = init_name_hash();
- for (i=0; i < this->len ; i++)
- hash = partial_name_hash(tolower(this->name[i]), hash);
- this->hash = end_name_hash(hash);
-
- return 0;
-}
-
-static int
-smb_compare_dentry(struct dentry *dir, struct qstr *a, struct qstr *b)
-{
- int i, result = 1;
-
- if (a->len != b->len)
- goto out;
- for (i=0; i < a->len; i++) {
- if (tolower(a->name[i]) != tolower(b->name[i]))
- goto out;
- }
- result = 0;
-out:
- return result;
-}
-
-/*
- * This is the callback from dput() when d_count is going to 0.
- * We use this to unhash dentries with bad inodes.
- */
-static int
-smb_delete_dentry(struct dentry * dentry)
-{
- if (dentry->d_inode) {
- if (is_bad_inode(dentry->d_inode)) {
- PARANOIA("bad inode, unhashing %s/%s\n",
- DENTRY_PATH(dentry));
- return 1;
- }
- } else {
- /* N.B. Unhash negative dentries? */
- }
- return 0;
-}
-
-/*
- * Initialize a new dentry
- */
-void
-smb_new_dentry(struct dentry *dentry)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
-
- if (server->mnt->flags & SMB_MOUNT_CASE)
- dentry->d_op = &smbfs_dentry_operations_case;
- else
- dentry->d_op = &smbfs_dentry_operations;
- dentry->d_time = jiffies;
-}
-
-
-/*
- * Whenever a lookup succeeds, we know the parent directories
- * are all valid, so we want to update the dentry timestamps.
- * N.B. Move this to dcache?
- */
-void
-smb_renew_times(struct dentry * dentry)
-{
- dget(dentry);
- spin_lock(&dentry->d_lock);
- for (;;) {
- struct dentry *parent;
-
- dentry->d_time = jiffies;
- if (IS_ROOT(dentry))
- break;
- parent = dentry->d_parent;
- dget(parent);
- spin_unlock(&dentry->d_lock);
- dput(dentry);
- dentry = parent;
- spin_lock(&dentry->d_lock);
- }
- spin_unlock(&dentry->d_lock);
- dput(dentry);
-}
-
-static struct dentry *
-smb_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
-{
- struct smb_fattr finfo;
- struct inode *inode;
- int error;
- struct smb_sb_info *server;
-
- error = -ENAMETOOLONG;
- if (dentry->d_name.len > SMB_MAXNAMELEN)
- goto out;
-
- /* Do not allow lookup of names with backslashes in */
- error = -EINVAL;
- if (memchr(dentry->d_name.name, '\\', dentry->d_name.len))
- goto out;
-
- lock_kernel();
- error = smb_proc_getattr(dentry, &finfo);
-#ifdef SMBFS_PARANOIA
- if (error && error != -ENOENT)
- PARANOIA("find %s/%s failed, error=%d\n",
- DENTRY_PATH(dentry), error);
-#endif
-
- inode = NULL;
- if (error == -ENOENT)
- goto add_entry;
- if (!error) {
- error = -EACCES;
- finfo.f_ino = iunique(dentry->d_sb, 2);
- inode = smb_iget(dir->i_sb, &finfo);
- if (inode) {
- add_entry:
- server = server_from_dentry(dentry);
- if (server->mnt->flags & SMB_MOUNT_CASE)
- dentry->d_op = &smbfs_dentry_operations_case;
- else
- dentry->d_op = &smbfs_dentry_operations;
-
- d_add(dentry, inode);
- smb_renew_times(dentry);
- error = 0;
- }
- }
- unlock_kernel();
-out:
- return ERR_PTR(error);
-}
-
-/*
- * This code is common to all routines creating a new inode.
- */
-static int
-smb_instantiate(struct dentry *dentry, __u16 fileid, int have_id)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- struct inode *inode;
- int error;
- struct smb_fattr fattr;
-
- VERBOSE("file %s/%s, fileid=%u\n", DENTRY_PATH(dentry), fileid);
-
- error = smb_proc_getattr(dentry, &fattr);
- if (error)
- goto out_close;
-
- smb_renew_times(dentry);
- fattr.f_ino = iunique(dentry->d_sb, 2);
- inode = smb_iget(dentry->d_sb, &fattr);
- if (!inode)
- goto out_no_inode;
-
- if (have_id) {
- struct smb_inode_info *ei = SMB_I(inode);
- ei->fileid = fileid;
- ei->access = SMB_O_RDWR;
- ei->open = server->generation;
- }
- d_instantiate(dentry, inode);
-out:
- return error;
-
-out_no_inode:
- error = -EACCES;
-out_close:
- if (have_id) {
- PARANOIA("%s/%s failed, error=%d, closing %u\n",
- DENTRY_PATH(dentry), error, fileid);
- smb_close_fileid(dentry, fileid);
- }
- goto out;
-}
-
-/* N.B. How should the mode argument be used? */
-static int
-smb_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *nd)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- __u16 fileid;
- int error;
- struct iattr attr;
-
- VERBOSE("creating %s/%s, mode=%d\n", DENTRY_PATH(dentry), mode);
-
- lock_kernel();
- smb_invalid_dir_cache(dir);
- error = smb_proc_create(dentry, 0, get_seconds(), &fileid);
- if (!error) {
- if (server->opt.capabilities & SMB_CAP_UNIX) {
- /* Set attributes for new file */
- attr.ia_valid = ATTR_MODE;
- attr.ia_mode = mode;
- error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
- }
- error = smb_instantiate(dentry, fileid, 1);
- } else {
- PARANOIA("%s/%s failed, error=%d\n",
- DENTRY_PATH(dentry), error);
- }
- unlock_kernel();
- return error;
-}
-
-/* N.B. How should the mode argument be used? */
-static int
-smb_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- int error;
- struct iattr attr;
-
- lock_kernel();
- smb_invalid_dir_cache(dir);
- error = smb_proc_mkdir(dentry);
- if (!error) {
- if (server->opt.capabilities & SMB_CAP_UNIX) {
- /* Set attributes for new directory */
- attr.ia_valid = ATTR_MODE;
- attr.ia_mode = mode;
- error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
- }
- error = smb_instantiate(dentry, 0, 0);
- }
- unlock_kernel();
- return error;
-}
-
-static int
-smb_rmdir(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
- int error;
-
- /*
- * Close the directory if it's open.
- */
- lock_kernel();
- smb_close(inode);
-
- /*
- * Check that nobody else is using the directory..
- */
- error = -EBUSY;
- if (!d_unhashed(dentry))
- goto out;
-
- smb_invalid_dir_cache(dir);
- error = smb_proc_rmdir(dentry);
-
-out:
- unlock_kernel();
- return error;
-}
-
-static int
-smb_unlink(struct inode *dir, struct dentry *dentry)
-{
- int error;
-
- /*
- * Close the file if it's open.
- */
- lock_kernel();
- smb_close(dentry->d_inode);
-
- smb_invalid_dir_cache(dir);
- error = smb_proc_unlink(dentry);
- if (!error)
- smb_renew_times(dentry);
- unlock_kernel();
- return error;
-}
-
-static int
-smb_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-{
- int error;
-
- /*
- * Close any open files, and check whether to delete the
- * target before attempting the rename.
- */
- lock_kernel();
- if (old_dentry->d_inode)
- smb_close(old_dentry->d_inode);
- if (new_dentry->d_inode) {
- smb_close(new_dentry->d_inode);
- error = smb_proc_unlink(new_dentry);
- if (error) {
- VERBOSE("unlink %s/%s, error=%d\n",
- DENTRY_PATH(new_dentry), error);
- goto out;
- }
- /* FIXME */
- d_delete(new_dentry);
- }
-
- smb_invalid_dir_cache(old_dir);
- smb_invalid_dir_cache(new_dir);
- error = smb_proc_mv(old_dentry, new_dentry);
- if (!error) {
- smb_renew_times(old_dentry);
- smb_renew_times(new_dentry);
- }
-out:
- unlock_kernel();
- return error;
-}
-
-/*
- * FIXME: samba servers won't let you create device nodes unless uid/gid
- * matches the connection credentials (and we don't know which those are ...)
- */
-static int
-smb_make_node(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
-{
- int error;
- struct iattr attr;
-
- attr.ia_valid = ATTR_MODE | ATTR_UID | ATTR_GID;
- attr.ia_mode = mode;
- current_euid_egid(&attr.ia_uid, &attr.ia_gid);
-
- if (!new_valid_dev(dev))
- return -EINVAL;
-
- smb_invalid_dir_cache(dir);
- error = smb_proc_setattr_unix(dentry, &attr, MAJOR(dev), MINOR(dev));
- if (!error) {
- error = smb_instantiate(dentry, 0, 0);
- }
- return error;
-}
-
-/*
- * dentry = existing file
- * new_dentry = new file
- */
-static int
-smb_link(struct dentry *dentry, struct inode *dir, struct dentry *new_dentry)
-{
- int error;
-
- DEBUG1("smb_link old=%s/%s new=%s/%s\n",
- DENTRY_PATH(dentry), DENTRY_PATH(new_dentry));
- smb_invalid_dir_cache(dir);
- error = smb_proc_link(server_from_dentry(dentry), dentry, new_dentry);
- if (!error) {
- smb_renew_times(dentry);
- error = smb_instantiate(new_dentry, 0, 0);
- }
- return error;
-}
+++ /dev/null
-/*
- * file.c
- *
- * Copyright (C) 1995, 1996, 1997 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/time.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/fcntl.h>
-#include <linux/stat.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-#include <linux/net.h>
-#include <linux/aio.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/smbno.h>
-#include <linux/smb_fs.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-
-static int
-smb_fsync(struct file *file, int datasync)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct smb_sb_info *server = server_from_dentry(dentry);
- int result;
-
- VERBOSE("sync file %s/%s\n", DENTRY_PATH(dentry));
-
- /*
- * The VFS will writepage() all dirty pages for us, but we
- * should send a SMBflush to the server, letting it know that
- * we want things synchronized with actual storage.
- *
- * Note: this function requires all pages to have been written already
- * (should be ok with writepage_sync)
- */
- result = smb_proc_flush(server, SMB_I(dentry->d_inode)->fileid);
- return result;
-}
-
-/*
- * Read a page synchronously.
- */
-static int
-smb_readpage_sync(struct dentry *dentry, struct page *page)
-{
- char *buffer = kmap(page);
- loff_t offset = (loff_t)page->index << PAGE_CACHE_SHIFT;
- struct smb_sb_info *server = server_from_dentry(dentry);
- unsigned int rsize = smb_get_rsize(server);
- int count = PAGE_SIZE;
- int result;
-
- VERBOSE("file %s/%s, count=%d@%Ld, rsize=%d\n",
- DENTRY_PATH(dentry), count, offset, rsize);
-
- result = smb_open(dentry, SMB_O_RDONLY);
- if (result < 0)
- goto io_error;
-
- do {
- if (count < rsize)
- rsize = count;
-
- result = server->ops->read(dentry->d_inode,offset,rsize,buffer);
- if (result < 0)
- goto io_error;
-
- count -= result;
- offset += result;
- buffer += result;
- dentry->d_inode->i_atime =
- current_fs_time(dentry->d_inode->i_sb);
- if (result < rsize)
- break;
- } while (count);
-
- memset(buffer, 0, count);
- flush_dcache_page(page);
- SetPageUptodate(page);
- result = 0;
-
-io_error:
- kunmap(page);
- unlock_page(page);
- return result;
-}
-
-/*
- * We are called with the page locked and we unlock it when done.
- */
-static int
-smb_readpage(struct file *file, struct page *page)
-{
- int error;
- struct dentry *dentry = file->f_path.dentry;
-
- page_cache_get(page);
- error = smb_readpage_sync(dentry, page);
- page_cache_release(page);
- return error;
-}
-
-/*
- * Write a page synchronously.
- * Offset is the data offset within the page.
- */
-static int
-smb_writepage_sync(struct inode *inode, struct page *page,
- unsigned long pageoffset, unsigned int count)
-{
- loff_t offset;
- char *buffer = kmap(page) + pageoffset;
- struct smb_sb_info *server = server_from_inode(inode);
- unsigned int wsize = smb_get_wsize(server);
- int ret = 0;
-
- offset = ((loff_t)page->index << PAGE_CACHE_SHIFT) + pageoffset;
- VERBOSE("file ino=%ld, fileid=%d, count=%d@%Ld, wsize=%d\n",
- inode->i_ino, SMB_I(inode)->fileid, count, offset, wsize);
-
- do {
- int write_ret;
-
- if (count < wsize)
- wsize = count;
-
- write_ret = server->ops->write(inode, offset, wsize, buffer);
- if (write_ret < 0) {
- PARANOIA("failed write, wsize=%d, write_ret=%d\n",
- wsize, write_ret);
- ret = write_ret;
- break;
- }
- /* N.B. what if result < wsize?? */
-#ifdef SMBFS_PARANOIA
- if (write_ret < wsize)
- PARANOIA("short write, wsize=%d, write_ret=%d\n",
- wsize, write_ret);
-#endif
- buffer += wsize;
- offset += wsize;
- count -= wsize;
- /*
- * Update the inode now rather than waiting for a refresh.
- */
- inode->i_mtime = inode->i_atime = current_fs_time(inode->i_sb);
- SMB_I(inode)->flags |= SMB_F_LOCALWRITE;
- if (offset > inode->i_size)
- inode->i_size = offset;
- } while (count);
-
- kunmap(page);
- return ret;
-}
-
-/*
- * Write a page to the server. This will be used for NFS swapping only
- * (for now), and we currently do this synchronously only.
- *
- * We are called with the page locked and we unlock it when done.
- */
-static int
-smb_writepage(struct page *page, struct writeback_control *wbc)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode;
- unsigned long end_index;
- unsigned offset = PAGE_CACHE_SIZE;
- int err;
-
- BUG_ON(!mapping);
- inode = mapping->host;
- BUG_ON(!inode);
-
- end_index = inode->i_size >> PAGE_CACHE_SHIFT;
-
- /* easy case */
- if (page->index < end_index)
- goto do_it;
- /* things got complicated... */
- offset = inode->i_size & (PAGE_CACHE_SIZE-1);
- /* OK, are we completely out? */
- if (page->index >= end_index+1 || !offset)
- return 0; /* truncated - don't care */
-do_it:
- page_cache_get(page);
- err = smb_writepage_sync(inode, page, 0, offset);
- SetPageUptodate(page);
- unlock_page(page);
- page_cache_release(page);
- return err;
-}
-
-static int
-smb_updatepage(struct file *file, struct page *page, unsigned long offset,
- unsigned int count)
-{
- struct dentry *dentry = file->f_path.dentry;
-
- DEBUG1("(%s/%s %d@%lld)\n", DENTRY_PATH(dentry), count,
- ((unsigned long long)page->index << PAGE_CACHE_SHIFT) + offset);
-
- return smb_writepage_sync(dentry->d_inode, page, offset, count);
-}
-
-static ssize_t
-smb_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
-{
- struct file * file = iocb->ki_filp;
- struct dentry * dentry = file->f_path.dentry;
- ssize_t status;
-
- VERBOSE("file %s/%s, count=%lu@%lu\n", DENTRY_PATH(dentry),
- (unsigned long) iocb->ki_left, (unsigned long) pos);
-
- status = smb_revalidate_inode(dentry);
- if (status) {
- PARANOIA("%s/%s validation failed, error=%Zd\n",
- DENTRY_PATH(dentry), status);
- goto out;
- }
-
- VERBOSE("before read, size=%ld, flags=%x, atime=%ld\n",
- (long)dentry->d_inode->i_size,
- dentry->d_inode->i_flags, dentry->d_inode->i_atime.tv_sec);
-
- status = generic_file_aio_read(iocb, iov, nr_segs, pos);
-out:
- return status;
-}
-
-static int
-smb_file_mmap(struct file * file, struct vm_area_struct * vma)
-{
- struct dentry * dentry = file->f_path.dentry;
- int status;
-
- VERBOSE("file %s/%s, address %lu - %lu\n",
- DENTRY_PATH(dentry), vma->vm_start, vma->vm_end);
-
- status = smb_revalidate_inode(dentry);
- if (status) {
- PARANOIA("%s/%s validation failed, error=%d\n",
- DENTRY_PATH(dentry), status);
- goto out;
- }
- status = generic_file_mmap(file, vma);
-out:
- return status;
-}
-
-static ssize_t
-smb_file_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t count,
- unsigned int flags)
-{
- struct dentry *dentry = file->f_path.dentry;
- ssize_t status;
-
- VERBOSE("file %s/%s, pos=%Ld, count=%lu\n",
- DENTRY_PATH(dentry), *ppos, count);
-
- status = smb_revalidate_inode(dentry);
- if (status) {
- PARANOIA("%s/%s validation failed, error=%Zd\n",
- DENTRY_PATH(dentry), status);
- goto out;
- }
- status = generic_file_splice_read(file, ppos, pipe, count, flags);
-out:
- return status;
-}
-
-/*
- * This does the "real" work of the write. The generic routine has
- * allocated the page, locked it, done all the page alignment stuff
- * calculations etc. Now we should just copy the data from user
- * space and write it back to the real medium..
- *
- * If the writer ends up delaying the write, the writer needs to
- * increment the page use counts until he is done with the page.
- */
-static int smb_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
-{
- pgoff_t index = pos >> PAGE_CACHE_SHIFT;
- *pagep = grab_cache_page_write_begin(mapping, index, flags);
- if (!*pagep)
- return -ENOMEM;
- return 0;
-}
-
-static int smb_write_end(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
-{
- int status;
- unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
-
- lock_kernel();
- status = smb_updatepage(file, page, offset, copied);
- unlock_kernel();
-
- if (!status) {
- if (!PageUptodate(page) && copied == PAGE_CACHE_SIZE)
- SetPageUptodate(page);
- status = copied;
- }
-
- unlock_page(page);
- page_cache_release(page);
-
- return status;
-}
-
-const struct address_space_operations smb_file_aops = {
- .readpage = smb_readpage,
- .writepage = smb_writepage,
- .write_begin = smb_write_begin,
- .write_end = smb_write_end,
-};
-
-/*
- * Write to a file (through the page cache).
- */
-static ssize_t
-smb_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
-{
- struct file * file = iocb->ki_filp;
- struct dentry * dentry = file->f_path.dentry;
- ssize_t result;
-
- VERBOSE("file %s/%s, count=%lu@%lu\n",
- DENTRY_PATH(dentry),
- (unsigned long) iocb->ki_left, (unsigned long) pos);
-
- result = smb_revalidate_inode(dentry);
- if (result) {
- PARANOIA("%s/%s validation failed, error=%Zd\n",
- DENTRY_PATH(dentry), result);
- goto out;
- }
-
- result = smb_open(dentry, SMB_O_WRONLY);
- if (result)
- goto out;
-
- if (iocb->ki_left > 0) {
- result = generic_file_aio_write(iocb, iov, nr_segs, pos);
- VERBOSE("pos=%ld, size=%ld, mtime=%ld, atime=%ld\n",
- (long) file->f_pos, (long) dentry->d_inode->i_size,
- dentry->d_inode->i_mtime.tv_sec,
- dentry->d_inode->i_atime.tv_sec);
- }
-out:
- return result;
-}
-
-static int
-smb_file_open(struct inode *inode, struct file * file)
-{
- int result;
- struct dentry *dentry = file->f_path.dentry;
- int smb_mode = (file->f_mode & O_ACCMODE) - 1;
-
- lock_kernel();
- result = smb_open(dentry, smb_mode);
- if (result)
- goto out;
- SMB_I(inode)->openers++;
-out:
- unlock_kernel();
- return result;
-}
-
-static int
-smb_file_release(struct inode *inode, struct file * file)
-{
- lock_kernel();
- if (!--SMB_I(inode)->openers) {
- /* We must flush any dirty pages now as we won't be able to
- write anything after close. mmap can trigger this.
- "openers" should perhaps include mmap'ers ... */
- filemap_write_and_wait(inode->i_mapping);
- smb_close(inode);
- }
- unlock_kernel();
- return 0;
-}
-
-/*
- * Check whether the required access is compatible with
- * an inode's permission. SMB doesn't recognize superuser
- * privileges, so we need our own check for this.
- */
-static int
-smb_file_permission(struct inode *inode, int mask)
-{
- int mode = inode->i_mode;
- int error = 0;
-
- VERBOSE("mode=%x, mask=%x\n", mode, mask);
-
- /* Look at user permissions */
- mode >>= 6;
- if (mask & ~mode & (MAY_READ | MAY_WRITE | MAY_EXEC))
- error = -EACCES;
- return error;
-}
-
-static loff_t smb_remote_llseek(struct file *file, loff_t offset, int origin)
-{
- loff_t ret;
- lock_kernel();
- ret = generic_file_llseek_unlocked(file, offset, origin);
- unlock_kernel();
- return ret;
-}
-
-const struct file_operations smb_file_operations =
-{
- .llseek = smb_remote_llseek,
- .read = do_sync_read,
- .aio_read = smb_file_aio_read,
- .write = do_sync_write,
- .aio_write = smb_file_aio_write,
- .unlocked_ioctl = smb_ioctl,
- .mmap = smb_file_mmap,
- .open = smb_file_open,
- .release = smb_file_release,
- .fsync = smb_fsync,
- .splice_read = smb_file_splice_read,
-};
-
-const struct inode_operations smb_file_inode_operations =
-{
- .permission = smb_file_permission,
- .getattr = smb_getattr,
- .setattr = smb_notify_change,
-};
+++ /dev/null
-/*
- * getopt.c
- */
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/net.h>
-
-#include "getopt.h"
-
-/**
- * smb_getopt - option parser
- * @caller: name of the caller, for error messages
- * @options: the options string
- * @opts: an array of &struct option entries controlling parser operations
- * @optopt: output; will contain the current option
- * @optarg: output; will contain the value (if one exists)
- * @flag: output; may be NULL; should point to a long for or'ing flags
- * @value: output; may be NULL; will be overwritten with the integer value
- * of the current argument.
- *
- * Helper to parse options on the format used by mount ("a=b,c=d,e,f").
- * Returns opts->val if a matching entry in the 'opts' array is found,
- * 0 when no more tokens are found, -1 if an error is encountered.
- */
-int smb_getopt(char *caller, char **options, struct option *opts,
- char **optopt, char **optarg, unsigned long *flag,
- unsigned long *value)
-{
- char *token;
- char *val;
- int i;
-
- do {
- if ((token = strsep(options, ",")) == NULL)
- return 0;
- } while (*token == '\0');
- *optopt = token;
-
- *optarg = NULL;
- if ((val = strchr (token, '=')) != NULL) {
- *val++ = 0;
- if (value)
- *value = simple_strtoul(val, NULL, 0);
- *optarg = val;
- }
-
- for (i = 0; opts[i].name != NULL; i++) {
- if (!strcmp(opts[i].name, token)) {
- if (!opts[i].flag && (!val || !*val)) {
- printk("%s: the %s option requires an argument\n",
- caller, token);
- return -1;
- }
-
- if (flag && opts[i].flag)
- *flag |= opts[i].flag;
-
- return opts[i].val;
- }
- }
- printk("%s: Unrecognized mount option %s\n", caller, token);
- return -1;
-}
+++ /dev/null
-#ifndef _LINUX_GETOPT_H
-#define _LINUX_GETOPT_H
-
-struct option {
- const char *name;
- unsigned long flag;
- int val;
-};
-
-extern int smb_getopt(char *caller, char **options, struct option *opts,
- char **optopt, char **optarg, unsigned long *flag,
- unsigned long *value);
-
-#endif /* _LINUX_GETOPT_H */
+++ /dev/null
-/*
- * inode.c
- *
- * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/file.h>
-#include <linux/dcache.h>
-#include <linux/smp_lock.h>
-#include <linux/nls.h>
-#include <linux/seq_file.h>
-#include <linux/mount.h>
-#include <linux/net.h>
-#include <linux/vfs.h>
-#include <linux/highuid.h>
-#include <linux/sched.h>
-#include <linux/smb_fs.h>
-#include <linux/smbno.h>
-#include <linux/smb_mount.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include "smb_debug.h"
-#include "getopt.h"
-#include "proto.h"
-
-/* Always pick a default string */
-#ifdef CONFIG_SMB_NLS_REMOTE
-#define SMB_NLS_REMOTE CONFIG_SMB_NLS_REMOTE
-#else
-#define SMB_NLS_REMOTE ""
-#endif
-
-#define SMB_TTL_DEFAULT 1000
-
-static void smb_evict_inode(struct inode *);
-static void smb_put_super(struct super_block *);
-static int smb_statfs(struct dentry *, struct kstatfs *);
-static int smb_show_options(struct seq_file *, struct vfsmount *);
-
-static struct kmem_cache *smb_inode_cachep;
-
-static struct inode *smb_alloc_inode(struct super_block *sb)
-{
- struct smb_inode_info *ei;
- ei = (struct smb_inode_info *)kmem_cache_alloc(smb_inode_cachep, GFP_KERNEL);
- if (!ei)
- return NULL;
- return &ei->vfs_inode;
-}
-
-static void smb_destroy_inode(struct inode *inode)
-{
- kmem_cache_free(smb_inode_cachep, SMB_I(inode));
-}
-
-static void init_once(void *foo)
-{
- struct smb_inode_info *ei = (struct smb_inode_info *) foo;
-
- inode_init_once(&ei->vfs_inode);
-}
-
-static int init_inodecache(void)
-{
- smb_inode_cachep = kmem_cache_create("smb_inode_cache",
- sizeof(struct smb_inode_info),
- 0, (SLAB_RECLAIM_ACCOUNT|
- SLAB_MEM_SPREAD),
- init_once);
- if (smb_inode_cachep == NULL)
- return -ENOMEM;
- return 0;
-}
-
-static void destroy_inodecache(void)
-{
- kmem_cache_destroy(smb_inode_cachep);
-}
-
-static int smb_remount(struct super_block *sb, int *flags, char *data)
-{
- *flags |= MS_NODIRATIME;
- return 0;
-}
-
-static const struct super_operations smb_sops =
-{
- .alloc_inode = smb_alloc_inode,
- .destroy_inode = smb_destroy_inode,
- .drop_inode = generic_delete_inode,
- .evict_inode = smb_evict_inode,
- .put_super = smb_put_super,
- .statfs = smb_statfs,
- .show_options = smb_show_options,
- .remount_fs = smb_remount,
-};
-
-
-/* We are always generating a new inode here */
-struct inode *
-smb_iget(struct super_block *sb, struct smb_fattr *fattr)
-{
- struct smb_sb_info *server = SMB_SB(sb);
- struct inode *result;
-
- DEBUG1("smb_iget: %p\n", fattr);
-
- result = new_inode(sb);
- if (!result)
- return result;
- result->i_ino = fattr->f_ino;
- SMB_I(result)->open = 0;
- SMB_I(result)->fileid = 0;
- SMB_I(result)->access = 0;
- SMB_I(result)->flags = 0;
- SMB_I(result)->closed = 0;
- SMB_I(result)->openers = 0;
- smb_set_inode_attr(result, fattr);
- if (S_ISREG(result->i_mode)) {
- result->i_op = &smb_file_inode_operations;
- result->i_fop = &smb_file_operations;
- result->i_data.a_ops = &smb_file_aops;
- } else if (S_ISDIR(result->i_mode)) {
- if (server->opt.capabilities & SMB_CAP_UNIX)
- result->i_op = &smb_dir_inode_operations_unix;
- else
- result->i_op = &smb_dir_inode_operations;
- result->i_fop = &smb_dir_operations;
- } else if (S_ISLNK(result->i_mode)) {
- result->i_op = &smb_link_inode_operations;
- } else {
- init_special_inode(result, result->i_mode, fattr->f_rdev);
- }
- insert_inode_hash(result);
- return result;
-}
-
-/*
- * Copy the inode data to a smb_fattr structure.
- */
-void
-smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr)
-{
- memset(fattr, 0, sizeof(struct smb_fattr));
- fattr->f_mode = inode->i_mode;
- fattr->f_nlink = inode->i_nlink;
- fattr->f_ino = inode->i_ino;
- fattr->f_uid = inode->i_uid;
- fattr->f_gid = inode->i_gid;
- fattr->f_size = inode->i_size;
- fattr->f_mtime = inode->i_mtime;
- fattr->f_ctime = inode->i_ctime;
- fattr->f_atime = inode->i_atime;
- fattr->f_blocks = inode->i_blocks;
-
- fattr->attr = SMB_I(inode)->attr;
- /*
- * Keep the attributes in sync with the inode permissions.
- */
- if (fattr->f_mode & S_IWUSR)
- fattr->attr &= ~aRONLY;
- else
- fattr->attr |= aRONLY;
-}
-
-/*
- * Update the inode, possibly causing it to invalidate its pages if mtime/size
- * is different from last time.
- */
-void
-smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr)
-{
- struct smb_inode_info *ei = SMB_I(inode);
-
- /*
- * A size change should have a different mtime, or same mtime
- * but different size.
- */
- time_t last_time = inode->i_mtime.tv_sec;
- loff_t last_sz = inode->i_size;
-
- inode->i_mode = fattr->f_mode;
- inode->i_nlink = fattr->f_nlink;
- inode->i_uid = fattr->f_uid;
- inode->i_gid = fattr->f_gid;
- inode->i_ctime = fattr->f_ctime;
- inode->i_blocks = fattr->f_blocks;
- inode->i_size = fattr->f_size;
- inode->i_mtime = fattr->f_mtime;
- inode->i_atime = fattr->f_atime;
- ei->attr = fattr->attr;
-
- /*
- * Update the "last time refreshed" field for revalidation.
- */
- ei->oldmtime = jiffies;
-
- if (inode->i_mtime.tv_sec != last_time || inode->i_size != last_sz) {
- VERBOSE("%ld changed, old=%ld, new=%ld, oz=%ld, nz=%ld\n",
- inode->i_ino,
- (long) last_time, (long) inode->i_mtime.tv_sec,
- (long) last_sz, (long) inode->i_size);
-
- if (!S_ISDIR(inode->i_mode))
- invalidate_remote_inode(inode);
- }
-}
-
-/*
- * This is called if the connection has gone bad ...
- * try to kill off all the current inodes.
- */
-void
-smb_invalidate_inodes(struct smb_sb_info *server)
-{
- VERBOSE("\n");
- shrink_dcache_sb(SB_of(server));
- invalidate_inodes(SB_of(server));
-}
-
-/*
- * This is called to update the inode attributes after
- * we've made changes to a file or directory.
- */
-static int
-smb_refresh_inode(struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
- int error;
- struct smb_fattr fattr;
-
- error = smb_proc_getattr(dentry, &fattr);
- if (!error) {
- smb_renew_times(dentry);
- /*
- * Check whether the type part of the mode changed,
- * and don't update the attributes if it did.
- *
- * And don't dick with the root inode
- */
- if (inode->i_ino == 2)
- return error;
- if (S_ISLNK(inode->i_mode))
- return error; /* VFS will deal with it */
-
- if ((inode->i_mode & S_IFMT) == (fattr.f_mode & S_IFMT)) {
- smb_set_inode_attr(inode, &fattr);
- } else {
- /*
- * Big trouble! The inode has become a new object,
- * so any operations attempted on it are invalid.
- *
- * To limit damage, mark the inode as bad so that
- * subsequent lookup validations will fail.
- */
- PARANOIA("%s/%s changed mode, %07o to %07o\n",
- DENTRY_PATH(dentry),
- inode->i_mode, fattr.f_mode);
-
- fattr.f_mode = inode->i_mode; /* save mode */
- make_bad_inode(inode);
- inode->i_mode = fattr.f_mode; /* restore mode */
- /*
- * No need to worry about unhashing the dentry: the
- * lookup validation will see that the inode is bad.
- * But we do want to invalidate the caches ...
- */
- if (!S_ISDIR(inode->i_mode))
- invalidate_remote_inode(inode);
- else
- smb_invalid_dir_cache(inode);
- error = -EIO;
- }
- }
- return error;
-}
-
-/*
- * This is called when we want to check whether the inode
- * has changed on the server. If it has changed, we must
- * invalidate our local caches.
- */
-int
-smb_revalidate_inode(struct dentry *dentry)
-{
- struct smb_sb_info *s = server_from_dentry(dentry);
- struct inode *inode = dentry->d_inode;
- int error = 0;
-
- DEBUG1("smb_revalidate_inode\n");
- lock_kernel();
-
- /*
- * Check whether we've recently refreshed the inode.
- */
- if (time_before(jiffies, SMB_I(inode)->oldmtime + SMB_MAX_AGE(s))) {
- VERBOSE("up-to-date, ino=%ld, jiffies=%lu, oldtime=%lu\n",
- inode->i_ino, jiffies, SMB_I(inode)->oldmtime);
- goto out;
- }
-
- error = smb_refresh_inode(dentry);
-out:
- unlock_kernel();
- return error;
-}
-
-/*
- * This routine is called when i_nlink == 0 and i_count goes to 0.
- * All blocking cleanup operations need to go here to avoid races.
- */
-static void
-smb_evict_inode(struct inode *ino)
-{
- DEBUG1("ino=%ld\n", ino->i_ino);
- truncate_inode_pages(&ino->i_data, 0);
- end_writeback(ino);
- lock_kernel();
- if (smb_close(ino))
- PARANOIA("could not close inode %ld\n", ino->i_ino);
- unlock_kernel();
-}
-
-static struct option opts[] = {
- { "version", 0, 'v' },
- { "win95", SMB_MOUNT_WIN95, 1 },
- { "oldattr", SMB_MOUNT_OLDATTR, 1 },
- { "dirattr", SMB_MOUNT_DIRATTR, 1 },
- { "case", SMB_MOUNT_CASE, 1 },
- { "uid", 0, 'u' },
- { "gid", 0, 'g' },
- { "file_mode", 0, 'f' },
- { "dir_mode", 0, 'd' },
- { "iocharset", 0, 'i' },
- { "codepage", 0, 'c' },
- { "ttl", 0, 't' },
- { NULL, 0, 0}
-};
-
-static int
-parse_options(struct smb_mount_data_kernel *mnt, char *options)
-{
- int c;
- unsigned long flags;
- unsigned long value;
- char *optarg;
- char *optopt;
-
- flags = 0;
- while ( (c = smb_getopt("smbfs", &options, opts,
- &optopt, &optarg, &flags, &value)) > 0) {
-
- VERBOSE("'%s' -> '%s'\n", optopt, optarg ? optarg : "<none>");
- switch (c) {
- case 1:
- /* got a "flag" option */
- break;
- case 'v':
- if (value != SMB_MOUNT_VERSION) {
- printk ("smbfs: Bad mount version %ld, expected %d\n",
- value, SMB_MOUNT_VERSION);
- return 0;
- }
- mnt->version = value;
- break;
- case 'u':
- mnt->uid = value;
- flags |= SMB_MOUNT_UID;
- break;
- case 'g':
- mnt->gid = value;
- flags |= SMB_MOUNT_GID;
- break;
- case 'f':
- mnt->file_mode = (value & S_IRWXUGO) | S_IFREG;
- flags |= SMB_MOUNT_FMODE;
- break;
- case 'd':
- mnt->dir_mode = (value & S_IRWXUGO) | S_IFDIR;
- flags |= SMB_MOUNT_DMODE;
- break;
- case 'i':
- strlcpy(mnt->codepage.local_name, optarg,
- SMB_NLS_MAXNAMELEN);
- break;
- case 'c':
- strlcpy(mnt->codepage.remote_name, optarg,
- SMB_NLS_MAXNAMELEN);
- break;
- case 't':
- mnt->ttl = value;
- break;
- default:
- printk ("smbfs: Unrecognized mount option %s\n",
- optopt);
- return -1;
- }
- }
- mnt->flags = flags;
- return c;
-}
-
-/*
- * smb_show_options() is for displaying mount options in /proc/mounts.
- * It tries to avoid showing settings that were not changed from their
- * defaults.
- */
-static int
-smb_show_options(struct seq_file *s, struct vfsmount *m)
-{
- struct smb_mount_data_kernel *mnt = SMB_SB(m->mnt_sb)->mnt;
- int i;
-
- for (i = 0; opts[i].name != NULL; i++)
- if (mnt->flags & opts[i].flag)
- seq_printf(s, ",%s", opts[i].name);
-
- if (mnt->flags & SMB_MOUNT_UID)
- seq_printf(s, ",uid=%d", mnt->uid);
- if (mnt->flags & SMB_MOUNT_GID)
- seq_printf(s, ",gid=%d", mnt->gid);
- if (mnt->mounted_uid != 0)
- seq_printf(s, ",mounted_uid=%d", mnt->mounted_uid);
-
- /*
- * Defaults for file_mode and dir_mode are unknown to us; they
- * depend on the current umask of the user doing the mount.
- */
- if (mnt->flags & SMB_MOUNT_FMODE)
- seq_printf(s, ",file_mode=%04o", mnt->file_mode & S_IRWXUGO);
- if (mnt->flags & SMB_MOUNT_DMODE)
- seq_printf(s, ",dir_mode=%04o", mnt->dir_mode & S_IRWXUGO);
-
- if (strcmp(mnt->codepage.local_name, CONFIG_NLS_DEFAULT))
- seq_printf(s, ",iocharset=%s", mnt->codepage.local_name);
- if (strcmp(mnt->codepage.remote_name, SMB_NLS_REMOTE))
- seq_printf(s, ",codepage=%s", mnt->codepage.remote_name);
-
- if (mnt->ttl != SMB_TTL_DEFAULT)
- seq_printf(s, ",ttl=%d", mnt->ttl);
-
- return 0;
-}
-
-static void
-smb_unload_nls(struct smb_sb_info *server)
-{
- unload_nls(server->remote_nls);
- unload_nls(server->local_nls);
-}
-
-static void
-smb_put_super(struct super_block *sb)
-{
- struct smb_sb_info *server = SMB_SB(sb);
-
- lock_kernel();
-
- smb_lock_server(server);
- server->state = CONN_INVALID;
- smbiod_unregister_server(server);
-
- smb_close_socket(server);
-
- if (server->conn_pid)
- kill_pid(server->conn_pid, SIGTERM, 1);
-
- bdi_destroy(&server->bdi);
- kfree(server->ops);
- smb_unload_nls(server);
- sb->s_fs_info = NULL;
- smb_unlock_server(server);
- put_pid(server->conn_pid);
- kfree(server);
-
- unlock_kernel();
-}
-
-static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
-{
- struct smb_sb_info *server;
- struct smb_mount_data_kernel *mnt;
- struct smb_mount_data *oldmnt;
- struct inode *root_inode;
- struct smb_fattr root;
- int ver;
- void *mem;
- static int warn_count;
-
- if (warn_count < 5) {
- warn_count++;
- printk(KERN_EMERG "smbfs is deprecated and will be removed"
- " from the 2.6.27 kernel. Please migrate to cifs\n");
- }
-
- if (!raw_data)
- goto out_no_data;
-
- oldmnt = (struct smb_mount_data *) raw_data;
- ver = oldmnt->version;
- if (ver != SMB_MOUNT_OLDVERSION && cpu_to_be32(ver) != SMB_MOUNT_ASCII)
- goto out_wrong_data;
-
- sb->s_flags |= MS_NODIRATIME;
- sb->s_blocksize = 1024; /* Eh... Is this correct? */
- sb->s_blocksize_bits = 10;
- sb->s_magic = SMB_SUPER_MAGIC;
- sb->s_op = &smb_sops;
- sb->s_time_gran = 100;
-
- server = kzalloc(sizeof(struct smb_sb_info), GFP_KERNEL);
- if (!server)
- goto out_no_server;
- sb->s_fs_info = server;
-
- if (bdi_setup_and_register(&server->bdi, "smbfs", BDI_CAP_MAP_COPY))
- goto out_bdi;
-
- sb->s_bdi = &server->bdi;
-
- server->super_block = sb;
- server->mnt = NULL;
- server->sock_file = NULL;
- init_waitqueue_head(&server->conn_wq);
- init_MUTEX(&server->sem);
- INIT_LIST_HEAD(&server->entry);
- INIT_LIST_HEAD(&server->xmitq);
- INIT_LIST_HEAD(&server->recvq);
- server->conn_error = 0;
- server->conn_pid = NULL;
- server->state = CONN_INVALID; /* no connection yet */
- server->generation = 0;
-
- /* Allocate the global temp buffer and some superblock helper structs */
- /* FIXME: move these to the smb_sb_info struct */
- VERBOSE("alloc chunk = %lu\n", sizeof(struct smb_ops) +
- sizeof(struct smb_mount_data_kernel));
- mem = kmalloc(sizeof(struct smb_ops) +
- sizeof(struct smb_mount_data_kernel), GFP_KERNEL);
- if (!mem)
- goto out_no_mem;
-
- server->ops = mem;
- smb_install_null_ops(server->ops);
- server->mnt = mem + sizeof(struct smb_ops);
-
- /* Setup NLS stuff */
- server->remote_nls = NULL;
- server->local_nls = NULL;
-
- mnt = server->mnt;
-
- memset(mnt, 0, sizeof(struct smb_mount_data_kernel));
- strlcpy(mnt->codepage.local_name, CONFIG_NLS_DEFAULT,
- SMB_NLS_MAXNAMELEN);
- strlcpy(mnt->codepage.remote_name, SMB_NLS_REMOTE,
- SMB_NLS_MAXNAMELEN);
-
- mnt->ttl = SMB_TTL_DEFAULT;
- if (ver == SMB_MOUNT_OLDVERSION) {
- mnt->version = oldmnt->version;
-
- SET_UID(mnt->uid, oldmnt->uid);
- SET_GID(mnt->gid, oldmnt->gid);
-
- mnt->file_mode = (oldmnt->file_mode & S_IRWXUGO) | S_IFREG;
- mnt->dir_mode = (oldmnt->dir_mode & S_IRWXUGO) | S_IFDIR;
-
- mnt->flags = (oldmnt->file_mode >> 9) | SMB_MOUNT_UID |
- SMB_MOUNT_GID | SMB_MOUNT_FMODE | SMB_MOUNT_DMODE;
- } else {
- mnt->file_mode = S_IRWXU | S_IRGRP | S_IXGRP |
- S_IROTH | S_IXOTH | S_IFREG;
- mnt->dir_mode = S_IRWXU | S_IRGRP | S_IXGRP |
- S_IROTH | S_IXOTH | S_IFDIR;
- if (parse_options(mnt, raw_data))
- goto out_bad_option;
- }
- mnt->mounted_uid = current_uid();
- smb_setcodepage(server, &mnt->codepage);
-
- /*
- * Display the enabled options
- * Note: smb_proc_getattr uses these in 2.4 (but was changed in 2.2)
- */
- if (mnt->flags & SMB_MOUNT_OLDATTR)
- printk("SMBFS: Using core getattr (Win 95 speedup)\n");
- else if (mnt->flags & SMB_MOUNT_DIRATTR)
- printk("SMBFS: Using dir ff getattr\n");
-
- if (smbiod_register_server(server) < 0) {
- printk(KERN_ERR "smbfs: failed to start smbiod\n");
- goto out_no_smbiod;
- }
-
- /*
- * Keep the super block locked while we get the root inode.
- */
- smb_init_root_dirent(server, &root, sb);
- root_inode = smb_iget(sb, &root);
- if (!root_inode)
- goto out_no_root;
-
- sb->s_root = d_alloc_root(root_inode);
- if (!sb->s_root)
- goto out_no_root;
-
- smb_new_dentry(sb->s_root);
-
- return 0;
-
-out_no_root:
- iput(root_inode);
-out_no_smbiod:
- smb_unload_nls(server);
-out_bad_option:
- kfree(mem);
-out_no_mem:
- bdi_destroy(&server->bdi);
-out_bdi:
- if (!server->mnt)
- printk(KERN_ERR "smb_fill_super: allocation failure\n");
- sb->s_fs_info = NULL;
- kfree(server);
- goto out_fail;
-out_wrong_data:
- printk(KERN_ERR "smbfs: mount_data version %d is not supported\n", ver);
- goto out_fail;
-out_no_data:
- printk(KERN_ERR "smb_fill_super: missing data argument\n");
-out_fail:
- return -EINVAL;
-out_no_server:
- printk(KERN_ERR "smb_fill_super: cannot allocate struct smb_sb_info\n");
- return -ENOMEM;
-}
-
-static int
-smb_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
- int result;
-
- lock_kernel();
-
- result = smb_proc_dskattr(dentry, buf);
-
- unlock_kernel();
-
- buf->f_type = SMB_SUPER_MAGIC;
- buf->f_namelen = SMB_MAXPATHLEN;
- return result;
-}
-
-int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
-{
- int err = smb_revalidate_inode(dentry);
- if (!err)
- generic_fillattr(dentry->d_inode, stat);
- return err;
-}
-
-int
-smb_notify_change(struct dentry *dentry, struct iattr *attr)
-{
- struct inode *inode = dentry->d_inode;
- struct smb_sb_info *server = server_from_dentry(dentry);
- unsigned int mask = (S_IFREG | S_IFDIR | S_IRWXUGO);
- int error, changed, refresh = 0;
- struct smb_fattr fattr;
-
- lock_kernel();
-
- error = smb_revalidate_inode(dentry);
- if (error)
- goto out;
-
- if ((error = inode_change_ok(inode, attr)) < 0)
- goto out;
-
- error = -EPERM;
- if ((attr->ia_valid & ATTR_UID) && (attr->ia_uid != server->mnt->uid))
- goto out;
-
- if ((attr->ia_valid & ATTR_GID) && (attr->ia_uid != server->mnt->gid))
- goto out;
-
- if ((attr->ia_valid & ATTR_MODE) && (attr->ia_mode & ~mask))
- goto out;
-
- if ((attr->ia_valid & ATTR_SIZE) != 0) {
- VERBOSE("changing %s/%s, old size=%ld, new size=%ld\n",
- DENTRY_PATH(dentry),
- (long) inode->i_size, (long) attr->ia_size);
-
- filemap_write_and_wait(inode->i_mapping);
-
- error = smb_open(dentry, O_WRONLY);
- if (error)
- goto out;
- error = server->ops->truncate(inode, attr->ia_size);
- if (error)
- goto out;
- truncate_setsize(inode, attr->ia_size);
- refresh = 1;
- }
-
- if (server->opt.capabilities & SMB_CAP_UNIX) {
- /* For now we don't want to set the size with setattr_unix */
- attr->ia_valid &= ~ATTR_SIZE;
- /* FIXME: only call if we actually want to set something? */
- error = smb_proc_setattr_unix(dentry, attr, 0, 0);
- if (!error)
- refresh = 1;
-
- goto out;
- }
-
- /*
- * Initialize the fattr and check for changed fields.
- * Note: CTIME under SMB is creation time rather than
- * change time, so we don't attempt to change it.
- */
- smb_get_inode_attr(inode, &fattr);
-
- changed = 0;
- if ((attr->ia_valid & ATTR_MTIME) != 0) {
- fattr.f_mtime = attr->ia_mtime;
- changed = 1;
- }
- if ((attr->ia_valid & ATTR_ATIME) != 0) {
- fattr.f_atime = attr->ia_atime;
- /* Earlier protocols don't have an access time */
- if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2)
- changed = 1;
- }
- if (changed) {
- error = smb_proc_settime(dentry, &fattr);
- if (error)
- goto out;
- refresh = 1;
- }
-
- /*
- * Check for mode changes ... we're extremely limited in
- * what can be set for SMB servers: just the read-only bit.
- */
- if ((attr->ia_valid & ATTR_MODE) != 0) {
- VERBOSE("%s/%s mode change, old=%x, new=%x\n",
- DENTRY_PATH(dentry), fattr.f_mode, attr->ia_mode);
- changed = 0;
- if (attr->ia_mode & S_IWUSR) {
- if (fattr.attr & aRONLY) {
- fattr.attr &= ~aRONLY;
- changed = 1;
- }
- } else {
- if (!(fattr.attr & aRONLY)) {
- fattr.attr |= aRONLY;
- changed = 1;
- }
- }
- if (changed) {
- error = smb_proc_setattr(dentry, &fattr);
- if (error)
- goto out;
- refresh = 1;
- }
- }
- error = 0;
-
-out:
- if (refresh)
- smb_refresh_inode(dentry);
- unlock_kernel();
- return error;
-}
-
-static int smb_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data, struct vfsmount *mnt)
-{
- return get_sb_nodev(fs_type, flags, data, smb_fill_super, mnt);
-}
-
-static struct file_system_type smb_fs_type = {
- .owner = THIS_MODULE,
- .name = "smbfs",
- .get_sb = smb_get_sb,
- .kill_sb = kill_anon_super,
- .fs_flags = FS_BINARY_MOUNTDATA,
-};
-
-static int __init init_smb_fs(void)
-{
- int err;
- DEBUG1("registering ...\n");
-
- err = init_inodecache();
- if (err)
- goto out_inode;
- err = smb_init_request_cache();
- if (err)
- goto out_request;
- err = register_filesystem(&smb_fs_type);
- if (err)
- goto out;
- return 0;
-out:
- smb_destroy_request_cache();
-out_request:
- destroy_inodecache();
-out_inode:
- return err;
-}
-
-static void __exit exit_smb_fs(void)
-{
- DEBUG1("unregistering ...\n");
- unregister_filesystem(&smb_fs_type);
- smb_destroy_request_cache();
- destroy_inodecache();
-}
-
-module_init(init_smb_fs)
-module_exit(exit_smb_fs)
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * ioctl.c
- *
- * Copyright (C) 1995, 1996 by Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/ioctl.h>
-#include <linux/time.h>
-#include <linux/mm.h>
-#include <linux/highuid.h>
-#include <linux/smp_lock.h>
-#include <linux/net.h>
-
-#include <linux/smb_fs.h>
-#include <linux/smb_mount.h>
-
-#include <asm/uaccess.h>
-
-#include "proto.h"
-
-long
-smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
- struct smb_conn_opt opt;
- int result = -EINVAL;
-
- lock_kernel();
- switch (cmd) {
- uid16_t uid16;
- uid_t uid32;
- case SMB_IOC_GETMOUNTUID:
- SET_UID(uid16, server->mnt->mounted_uid);
- result = put_user(uid16, (uid16_t __user *) arg);
- break;
- case SMB_IOC_GETMOUNTUID32:
- SET_UID(uid32, server->mnt->mounted_uid);
- result = put_user(uid32, (uid_t __user *) arg);
- break;
-
- case SMB_IOC_NEWCONN:
- /* arg is smb_conn_opt, or NULL if no connection was made */
- if (!arg) {
- result = 0;
- smb_lock_server(server);
- server->state = CONN_RETRIED;
- printk(KERN_ERR "Connection attempt failed! [%d]\n",
- server->conn_error);
- smbiod_flush(server);
- smb_unlock_server(server);
- break;
- }
-
- result = -EFAULT;
- if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
- result = smb_newconn(server, &opt);
- break;
- default:
- break;
- }
- unlock_kernel();
-
- return result;
-}
+++ /dev/null
-/*
- * proc.c
- *
- * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/types.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/stat.h>
-#include <linux/fcntl.h>
-#include <linux/dcache.h>
-#include <linux/nls.h>
-#include <linux/smp_lock.h>
-#include <linux/net.h>
-#include <linux/vfs.h>
-#include <linux/smb_fs.h>
-#include <linux/smbno.h>
-#include <linux/smb_mount.h>
-
-#include <net/sock.h>
-
-#include <asm/string.h>
-#include <asm/div64.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-#include "request.h"
-
-
-/* Features. Undefine if they cause problems, this should perhaps be a
- config option. */
-#define SMBFS_POSIX_UNLINK 1
-
-/* Allow smb_retry to be interrupted. */
-#define SMB_RETRY_INTR
-
-#define SMB_VWV(packet) ((packet) + SMB_HEADER_LEN)
-#define SMB_CMD(packet) (*(packet+8))
-#define SMB_WCT(packet) (*(packet+SMB_HEADER_LEN - 1))
-
-#define SMB_DIRINFO_SIZE 43
-#define SMB_STATUS_SIZE 21
-
-#define SMB_ST_BLKSIZE (PAGE_SIZE)
-#define SMB_ST_BLKSHIFT (PAGE_SHIFT)
-
-static struct smb_ops smb_ops_core;
-static struct smb_ops smb_ops_os2;
-static struct smb_ops smb_ops_win95;
-static struct smb_ops smb_ops_winNT;
-static struct smb_ops smb_ops_unix;
-static struct smb_ops smb_ops_null;
-
-static void
-smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
-static void
-smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
-static int
-smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *fattr);
-static int
-smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
- struct smb_fattr *fattr);
-static int
-smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
- u16 attr);
-static int
-smb_proc_setattr_ext(struct smb_sb_info *server,
- struct inode *inode, struct smb_fattr *fattr);
-static int
-smb_proc_query_cifsunix(struct smb_sb_info *server);
-static void
-install_ops(struct smb_ops *dst, struct smb_ops *src);
-
-
-static void
-str_upper(char *name, int len)
-{
- while (len--)
- {
- if (*name >= 'a' && *name <= 'z')
- *name -= ('a' - 'A');
- name++;
- }
-}
-
-#if 0
-static void
-str_lower(char *name, int len)
-{
- while (len--)
- {
- if (*name >= 'A' && *name <= 'Z')
- *name += ('a' - 'A');
- name++;
- }
-}
-#endif
-
-/* reverse a string inline. This is used by the dircache walking routines */
-static void reverse_string(char *buf, int len)
-{
- char c;
- char *end = buf+len-1;
-
- while(buf < end) {
- c = *buf;
- *(buf++) = *end;
- *(end--) = c;
- }
-}
-
-/* no conversion, just a wrapper for memcpy. */
-static int convert_memcpy(unsigned char *output, int olen,
- const unsigned char *input, int ilen,
- struct nls_table *nls_from,
- struct nls_table *nls_to)
-{
- if (olen < ilen)
- return -ENAMETOOLONG;
- memcpy(output, input, ilen);
- return ilen;
-}
-
-static inline int write_char(unsigned char ch, char *output, int olen)
-{
- if (olen < 4)
- return -ENAMETOOLONG;
- sprintf(output, ":x%02x", ch);
- return 4;
-}
-
-static inline int write_unichar(wchar_t ch, char *output, int olen)
-{
- if (olen < 5)
- return -ENAMETOOLONG;
- sprintf(output, ":%04x", ch);
- return 5;
-}
-
-/* convert from one "codepage" to another (possibly being utf8). */
-static int convert_cp(unsigned char *output, int olen,
- const unsigned char *input, int ilen,
- struct nls_table *nls_from,
- struct nls_table *nls_to)
-{
- int len = 0;
- int n;
- wchar_t ch;
-
- while (ilen > 0) {
- /* convert by changing to unicode and back to the new cp */
- n = nls_from->char2uni(input, ilen, &ch);
- if (n == -EINVAL) {
- ilen--;
- n = write_char(*input++, output, olen);
- if (n < 0)
- goto fail;
- output += n;
- olen -= n;
- len += n;
- continue;
- } else if (n < 0)
- goto fail;
- input += n;
- ilen -= n;
-
- n = nls_to->uni2char(ch, output, olen);
- if (n == -EINVAL)
- n = write_unichar(ch, output, olen);
- if (n < 0)
- goto fail;
- output += n;
- olen -= n;
-
- len += n;
- }
- return len;
-fail:
- return n;
-}
-
-/* ----------------------------------------------------------- */
-
-/*
- * nls_unicode
- *
- * This encodes/decodes little endian unicode format
- */
-
-static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
-{
- if (boundlen < 2)
- return -EINVAL;
- *out++ = uni & 0xff;
- *out++ = uni >> 8;
- return 2;
-}
-
-static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
-{
- if (boundlen < 2)
- return -EINVAL;
- *uni = (rawstring[1] << 8) | rawstring[0];
- return 2;
-}
-
-static struct nls_table unicode_table = {
- .charset = "unicode",
- .uni2char = uni2char,
- .char2uni = char2uni,
-};
-
-/* ----------------------------------------------------------- */
-
-static int setcodepage(struct nls_table **p, char *name)
-{
- struct nls_table *nls;
-
- if (!name || !*name) {
- nls = NULL;
- } else if ( (nls = load_nls(name)) == NULL) {
- printk (KERN_ERR "smbfs: failed to load nls '%s'\n", name);
- return -EINVAL;
- }
-
- /* if already set, unload the previous one. */
- if (*p && *p != &unicode_table)
- unload_nls(*p);
- *p = nls;
-
- return 0;
-}
-
-/* Handles all changes to codepage settings. */
-int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp)
-{
- int n = 0;
-
- smb_lock_server(server);
-
- /* Don't load any nls_* at all, if no remote is requested */
- if (!*cp->remote_name)
- goto out;
-
- /* local */
- n = setcodepage(&server->local_nls, cp->local_name);
- if (n != 0)
- goto out;
-
- /* remote */
- if (!strcmp(cp->remote_name, "unicode")) {
- server->remote_nls = &unicode_table;
- } else {
- n = setcodepage(&server->remote_nls, cp->remote_name);
- if (n != 0)
- setcodepage(&server->local_nls, NULL);
- }
-
-out:
- if (server->local_nls != NULL && server->remote_nls != NULL)
- server->ops->convert = convert_cp;
- else
- server->ops->convert = convert_memcpy;
-
- smb_unlock_server(server);
- return n;
-}
-
-
-/*****************************************************************************/
-/* */
-/* Encoding/Decoding section */
-/* */
-/*****************************************************************************/
-
-static __u8 *
-smb_encode_smb_length(__u8 * p, __u32 len)
-{
- *p = 0;
- *(p+1) = 0;
- *(p+2) = (len & 0xFF00) >> 8;
- *(p+3) = (len & 0xFF);
- if (len > 0xFFFF)
- {
- *(p+1) = 1;
- }
- return p + 4;
-}
-
-/*
- * smb_build_path: build the path to entry and name storing it in buf.
- * The path returned will have the trailing '\0'.
- */
-static int smb_build_path(struct smb_sb_info *server, unsigned char *buf,
- int maxlen,
- struct dentry *entry, struct qstr *name)
-{
- unsigned char *path = buf;
- int len;
- int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE) != 0;
-
- if (maxlen < (2<<unicode))
- return -ENAMETOOLONG;
-
- if (maxlen > SMB_MAXPATHLEN + 1)
- maxlen = SMB_MAXPATHLEN + 1;
-
- if (entry == NULL)
- goto test_name_and_out;
-
- /*
- * If IS_ROOT, we have to do no walking at all.
- */
- if (IS_ROOT(entry) && !name) {
- *path++ = '\\';
- if (unicode) *path++ = '\0';
- *path++ = '\0';
- if (unicode) *path++ = '\0';
- return path-buf;
- }
-
- /*
- * Build the path string walking the tree backward from end to ROOT
- * and store it in reversed order [see reverse_string()]
- */
- dget(entry);
- spin_lock(&entry->d_lock);
- while (!IS_ROOT(entry)) {
- struct dentry *parent;
-
- if (maxlen < (3<<unicode)) {
- spin_unlock(&entry->d_lock);
- dput(entry);
- return -ENAMETOOLONG;
- }
-
- len = server->ops->convert(path, maxlen-2,
- entry->d_name.name, entry->d_name.len,
- server->local_nls, server->remote_nls);
- if (len < 0) {
- spin_unlock(&entry->d_lock);
- dput(entry);
- return len;
- }
- reverse_string(path, len);
- path += len;
- if (unicode) {
- /* Note: reverse order */
- *path++ = '\0';
- maxlen--;
- }
- *path++ = '\\';
- maxlen -= len+1;
-
- parent = entry->d_parent;
- dget(parent);
- spin_unlock(&entry->d_lock);
- dput(entry);
- entry = parent;
- spin_lock(&entry->d_lock);
- }
- spin_unlock(&entry->d_lock);
- dput(entry);
- reverse_string(buf, path-buf);
-
- /* maxlen has space for at least one char */
-test_name_and_out:
- if (name) {
- if (maxlen < (3<<unicode))
- return -ENAMETOOLONG;
- *path++ = '\\';
- if (unicode) {
- *path++ = '\0';
- maxlen--;
- }
- len = server->ops->convert(path, maxlen-2,
- name->name, name->len,
- server->local_nls, server->remote_nls);
- if (len < 0)
- return len;
- path += len;
- maxlen -= len+1;
- }
- /* maxlen has space for at least one char */
- *path++ = '\0';
- if (unicode) *path++ = '\0';
- return path-buf;
-}
-
-static int smb_encode_path(struct smb_sb_info *server, char *buf, int maxlen,
- struct dentry *dir, struct qstr *name)
-{
- int result;
-
- result = smb_build_path(server, buf, maxlen, dir, name);
- if (result < 0)
- goto out;
- if (server->opt.protocol <= SMB_PROTOCOL_COREPLUS)
- str_upper(buf, result);
-out:
- return result;
-}
-
-/* encode_path for non-trans2 request SMBs */
-static int smb_simple_encode_path(struct smb_request *req, char **p,
- struct dentry * entry, struct qstr * name)
-{
- struct smb_sb_info *server = req->rq_server;
- char *s = *p;
- int res;
- int maxlen = ((char *)req->rq_buffer + req->rq_bufsize) - s;
- int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE);
-
- if (!maxlen)
- return -ENAMETOOLONG;
- *s++ = 4; /* ASCII data format */
-
- /*
- * SMB Unicode strings must be 16bit aligned relative the start of the
- * packet. If they are not they must be padded with 0.
- */
- if (unicode) {
- int align = s - (char *)req->rq_buffer;
- if (!(align & 1)) {
- *s++ = '\0';
- maxlen--;
- }
- }
-
- res = smb_encode_path(server, s, maxlen-1, entry, name);
- if (res < 0)
- return res;
- *p = s + res;
- return 0;
-}
-
-/* The following are taken directly from msdos-fs */
-
-/* Linear day numbers of the respective 1sts in non-leap years. */
-
-static int day_n[] =
-{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0};
- /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
-
-
-static time_t
-utc2local(struct smb_sb_info *server, time_t time)
-{
- return time - server->opt.serverzone*60;
-}
-
-static time_t
-local2utc(struct smb_sb_info *server, time_t time)
-{
- return time + server->opt.serverzone*60;
-}
-
-/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
-
-static time_t
-date_dos2unix(struct smb_sb_info *server, __u16 date, __u16 time)
-{
- int month, year;
- time_t secs;
-
- /* first subtract and mask after that... Otherwise, if
- date == 0, bad things happen */
- month = ((date >> 5) - 1) & 15;
- year = date >> 9;
- secs = (time & 31) * 2 + 60 * ((time >> 5) & 63) + (time >> 11) * 3600 + 86400 *
- ((date & 31) - 1 + day_n[month] + (year / 4) + year * 365 - ((year & 3) == 0 &&
- month < 2 ? 1 : 0) + 3653);
- /* days since 1.1.70 plus 80's leap day */
- return local2utc(server, secs);
-}
-
-
-/* Convert linear UNIX date to a MS-DOS time/date pair. */
-
-static void
-date_unix2dos(struct smb_sb_info *server,
- int unix_date, __u16 *date, __u16 *time)
-{
- int day, year, nl_day, month;
-
- unix_date = utc2local(server, unix_date);
- if (unix_date < 315532800)
- unix_date = 315532800;
-
- *time = (unix_date % 60) / 2 +
- (((unix_date / 60) % 60) << 5) +
- (((unix_date / 3600) % 24) << 11);
-
- day = unix_date / 86400 - 3652;
- year = day / 365;
- if ((year + 3) / 4 + 365 * year > day)
- year--;
- day -= (year + 3) / 4 + 365 * year;
- if (day == 59 && !(year & 3)) {
- nl_day = day;
- month = 2;
- } else {
- nl_day = (year & 3) || day <= 59 ? day : day - 1;
- for (month = 1; month < 12; month++)
- if (day_n[month] > nl_day)
- break;
- }
- *date = nl_day - day_n[month - 1] + 1 + (month << 5) + (year << 9);
-}
-
-/* The following are taken from fs/ntfs/util.c */
-
-#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
-
-/*
- * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
- * into Unix UTC (based 1970-01-01, in seconds).
- */
-static struct timespec
-smb_ntutc2unixutc(u64 ntutc)
-{
- struct timespec ts;
- /* FIXME: what about the timezone difference? */
- /* Subtract the NTFS time offset, then convert to 1s intervals. */
- u64 t = ntutc - NTFS_TIME_OFFSET;
- ts.tv_nsec = do_div(t, 10000000) * 100;
- ts.tv_sec = t;
- return ts;
-}
-
-/* Convert the Unix UTC into NT time */
-static u64
-smb_unixutc2ntutc(struct timespec ts)
-{
- /* Note: timezone conversion is probably wrong. */
- /* return ((u64)utc2local(server, t)) * 10000000 + NTFS_TIME_OFFSET; */
- return ((u64)ts.tv_sec) * 10000000 + ts.tv_nsec/100 + NTFS_TIME_OFFSET;
-}
-
-#define MAX_FILE_MODE 6
-static mode_t file_mode[] = {
- S_IFREG, S_IFDIR, S_IFLNK, S_IFCHR, S_IFBLK, S_IFIFO, S_IFSOCK
-};
-
-static int smb_filetype_to_mode(u32 filetype)
-{
- if (filetype > MAX_FILE_MODE) {
- PARANOIA("Filetype out of range: %d\n", filetype);
- return S_IFREG;
- }
- return file_mode[filetype];
-}
-
-static u32 smb_filetype_from_mode(int mode)
-{
- if (S_ISREG(mode))
- return UNIX_TYPE_FILE;
- if (S_ISDIR(mode))
- return UNIX_TYPE_DIR;
- if (S_ISLNK(mode))
- return UNIX_TYPE_SYMLINK;
- if (S_ISCHR(mode))
- return UNIX_TYPE_CHARDEV;
- if (S_ISBLK(mode))
- return UNIX_TYPE_BLKDEV;
- if (S_ISFIFO(mode))
- return UNIX_TYPE_FIFO;
- if (S_ISSOCK(mode))
- return UNIX_TYPE_SOCKET;
- return UNIX_TYPE_UNKNOWN;
-}
-
-
-/*****************************************************************************/
-/* */
-/* Support section. */
-/* */
-/*****************************************************************************/
-
-__u32
-smb_len(__u8 * p)
-{
- return ((*(p+1) & 0x1) << 16L) | (*(p+2) << 8L) | *(p+3);
-}
-
-static __u16
-smb_bcc(__u8 * packet)
-{
- int pos = SMB_HEADER_LEN + SMB_WCT(packet) * sizeof(__u16);
- return WVAL(packet, pos);
-}
-
-/* smb_valid_packet: We check if packet fulfills the basic
- requirements of a smb packet */
-
-static int
-smb_valid_packet(__u8 * packet)
-{
- return (packet[4] == 0xff
- && packet[5] == 'S'
- && packet[6] == 'M'
- && packet[7] == 'B'
- && (smb_len(packet) + 4 == SMB_HEADER_LEN
- + SMB_WCT(packet) * 2 + smb_bcc(packet)));
-}
-
-/* smb_verify: We check if we got the answer we expected, and if we
- got enough data. If bcc == -1, we don't care. */
-
-static int
-smb_verify(__u8 * packet, int command, int wct, int bcc)
-{
- if (SMB_CMD(packet) != command)
- goto bad_command;
- if (SMB_WCT(packet) < wct)
- goto bad_wct;
- if (bcc != -1 && smb_bcc(packet) < bcc)
- goto bad_bcc;
- return 0;
-
-bad_command:
- printk(KERN_ERR "smb_verify: command=%x, SMB_CMD=%x??\n",
- command, SMB_CMD(packet));
- goto fail;
-bad_wct:
- printk(KERN_ERR "smb_verify: command=%x, wct=%d, SMB_WCT=%d??\n",
- command, wct, SMB_WCT(packet));
- goto fail;
-bad_bcc:
- printk(KERN_ERR "smb_verify: command=%x, bcc=%d, SMB_BCC=%d??\n",
- command, bcc, smb_bcc(packet));
-fail:
- return -EIO;
-}
-
-/*
- * Returns the maximum read or write size for the "payload". Making all of the
- * packet fit within the negotiated max_xmit size.
- *
- * N.B. Since this value is usually computed before locking the server,
- * the server's packet size must never be decreased!
- */
-static inline int
-smb_get_xmitsize(struct smb_sb_info *server, int overhead)
-{
- return server->opt.max_xmit - overhead;
-}
-
-/*
- * Calculate the maximum read size
- */
-int
-smb_get_rsize(struct smb_sb_info *server)
-{
- /* readX has 12 parameters, read has 5 */
- int overhead = SMB_HEADER_LEN + 12 * sizeof(__u16) + 2 + 1 + 2;
- int size = smb_get_xmitsize(server, overhead);
-
- VERBOSE("xmit=%d, size=%d\n", server->opt.max_xmit, size);
-
- return size;
-}
-
-/*
- * Calculate the maximum write size
- */
-int
-smb_get_wsize(struct smb_sb_info *server)
-{
- /* writeX has 14 parameters, write has 5 */
- int overhead = SMB_HEADER_LEN + 14 * sizeof(__u16) + 2 + 1 + 2;
- int size = smb_get_xmitsize(server, overhead);
-
- VERBOSE("xmit=%d, size=%d\n", server->opt.max_xmit, size);
-
- return size;
-}
-
-/*
- * Convert SMB error codes to -E... errno values.
- */
-int
-smb_errno(struct smb_request *req)
-{
- int errcls = req->rq_rcls;
- int error = req->rq_err;
- char *class = "Unknown";
-
- VERBOSE("errcls %d code %d from command 0x%x\n",
- errcls, error, SMB_CMD(req->rq_header));
-
- if (errcls == ERRDOS) {
- switch (error) {
- case ERRbadfunc:
- return -EINVAL;
- case ERRbadfile:
- case ERRbadpath:
- return -ENOENT;
- case ERRnofids:
- return -EMFILE;
- case ERRnoaccess:
- return -EACCES;
- case ERRbadfid:
- return -EBADF;
- case ERRbadmcb:
- return -EREMOTEIO;
- case ERRnomem:
- return -ENOMEM;
- case ERRbadmem:
- return -EFAULT;
- case ERRbadenv:
- case ERRbadformat:
- return -EREMOTEIO;
- case ERRbadaccess:
- return -EACCES;
- case ERRbaddata:
- return -E2BIG;
- case ERRbaddrive:
- return -ENXIO;
- case ERRremcd:
- return -EREMOTEIO;
- case ERRdiffdevice:
- return -EXDEV;
- case ERRnofiles:
- return -ENOENT;
- case ERRbadshare:
- return -ETXTBSY;
- case ERRlock:
- return -EDEADLK;
- case ERRfilexists:
- return -EEXIST;
- case ERROR_INVALID_PARAMETER:
- return -EINVAL;
- case ERROR_DISK_FULL:
- return -ENOSPC;
- case ERROR_INVALID_NAME:
- return -ENOENT;
- case ERROR_DIR_NOT_EMPTY:
- return -ENOTEMPTY;
- case ERROR_NOT_LOCKED:
- return -ENOLCK;
- case ERROR_ALREADY_EXISTS:
- return -EEXIST;
- default:
- class = "ERRDOS";
- goto err_unknown;
- }
- } else if (errcls == ERRSRV) {
- switch (error) {
- /* N.B. This is wrong ... EIO ? */
- case ERRerror:
- return -ENFILE;
- case ERRbadpw:
- return -EINVAL;
- case ERRbadtype:
- case ERRtimeout:
- return -EIO;
- case ERRaccess:
- return -EACCES;
- /*
- * This is a fatal error, as it means the "tree ID"
- * for this connection is no longer valid. We map
- * to a special error code and get a new connection.
- */
- case ERRinvnid:
- return -EBADSLT;
- default:
- class = "ERRSRV";
- goto err_unknown;
- }
- } else if (errcls == ERRHRD) {
- switch (error) {
- case ERRnowrite:
- return -EROFS;
- case ERRbadunit:
- return -ENODEV;
- case ERRnotready:
- return -EUCLEAN;
- case ERRbadcmd:
- case ERRdata:
- return -EIO;
- case ERRbadreq:
- return -ERANGE;
- case ERRbadshare:
- return -ETXTBSY;
- case ERRlock:
- return -EDEADLK;
- case ERRdiskfull:
- return -ENOSPC;
- default:
- class = "ERRHRD";
- goto err_unknown;
- }
- } else if (errcls == ERRCMD) {
- class = "ERRCMD";
- } else if (errcls == SUCCESS) {
- return 0; /* This is the only valid 0 return */
- }
-
-err_unknown:
- printk(KERN_ERR "smb_errno: class %s, code %d from command 0x%x\n",
- class, error, SMB_CMD(req->rq_header));
- return -EIO;
-}
-
-/* smb_request_ok: We expect the server to be locked. Then we do the
- request and check the answer completely. When smb_request_ok
- returns 0, you can be quite sure that everything went well. When
- the answer is <=0, the returned number is a valid unix errno. */
-
-static int
-smb_request_ok(struct smb_request *req, int command, int wct, int bcc)
-{
- int result;
-
- req->rq_resp_wct = wct;
- req->rq_resp_bcc = bcc;
-
- result = smb_add_request(req);
- if (result != 0) {
- DEBUG1("smb_request failed\n");
- goto out;
- }
-
- if (smb_valid_packet(req->rq_header) != 0) {
- PARANOIA("invalid packet!\n");
- goto out;
- }
-
- result = smb_verify(req->rq_header, command, wct, bcc);
-
-out:
- return result;
-}
-
-/*
- * This implements the NEWCONN ioctl. It installs the server pid,
- * sets server->state to CONN_VALID, and wakes up the waiting process.
- */
-int
-smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt)
-{
- struct file *filp;
- struct sock *sk;
- int error;
-
- VERBOSE("fd=%d, pid=%d\n", opt->fd, current->pid);
-
- smb_lock_server(server);
-
- /*
- * Make sure we don't already have a valid connection ...
- */
- error = -EINVAL;
- if (server->state == CONN_VALID)
- goto out;
-
- error = -EACCES;
- if (current_uid() != server->mnt->mounted_uid &&
- !capable(CAP_SYS_ADMIN))
- goto out;
-
- error = -EBADF;
- filp = fget(opt->fd);
- if (!filp)
- goto out;
- if (!smb_valid_socket(filp->f_path.dentry->d_inode))
- goto out_putf;
-
- server->sock_file = filp;
- server->conn_pid = get_pid(task_pid(current));
- server->opt = *opt;
- server->generation += 1;
- server->state = CONN_VALID;
- error = 0;
-
- if (server->conn_error) {
- /*
- * conn_error is the returncode we originally decided to
- * drop the old connection on. This message should be positive
- * and not make people ask questions on why smbfs is printing
- * error messages ...
- */
- printk(KERN_INFO "SMB connection re-established (%d)\n",
- server->conn_error);
- server->conn_error = 0;
- }
-
- /*
- * Store the server in sock user_data (Only used by sunrpc)
- */
- sk = SOCKET_I(filp->f_path.dentry->d_inode)->sk;
- sk->sk_user_data = server;
-
- /* chain into the data_ready callback */
- server->data_ready = xchg(&sk->sk_data_ready, smb_data_ready);
-
- /* check if we have an old smbmount that uses seconds for the
- serverzone */
- if (server->opt.serverzone > 12*60 || server->opt.serverzone < -12*60)
- server->opt.serverzone /= 60;
-
- /* now that we have an established connection we can detect the server
- type and enable bug workarounds */
- if (server->opt.protocol < SMB_PROTOCOL_LANMAN2)
- install_ops(server->ops, &smb_ops_core);
- else if (server->opt.protocol == SMB_PROTOCOL_LANMAN2)
- install_ops(server->ops, &smb_ops_os2);
- else if (server->opt.protocol == SMB_PROTOCOL_NT1 &&
- (server->opt.max_xmit < 0x1000) &&
- !(server->opt.capabilities & SMB_CAP_NT_SMBS)) {
- /* FIXME: can we kill the WIN95 flag now? */
- server->mnt->flags |= SMB_MOUNT_WIN95;
- VERBOSE("detected WIN95 server\n");
- install_ops(server->ops, &smb_ops_win95);
- } else {
- /*
- * Samba has max_xmit 65535
- * NT4spX has max_xmit 4536 (or something like that)
- * win2k has ...
- */
- VERBOSE("detected NT1 (Samba, NT4/5) server\n");
- install_ops(server->ops, &smb_ops_winNT);
- }
-
- /* FIXME: the win9x code wants to modify these ... (seek/trunc bug) */
- if (server->mnt->flags & SMB_MOUNT_OLDATTR) {
- server->ops->getattr = smb_proc_getattr_core;
- } else if (server->mnt->flags & SMB_MOUNT_DIRATTR) {
- server->ops->getattr = smb_proc_getattr_ff;
- }
-
- /* Decode server capabilities */
- if (server->opt.capabilities & SMB_CAP_LARGE_FILES) {
- /* Should be ok to set this now, as no one can access the
- mount until the connection has been established. */
- SB_of(server)->s_maxbytes = ~0ULL >> 1;
- VERBOSE("LFS enabled\n");
- }
- if (server->opt.capabilities & SMB_CAP_UNICODE) {
- server->mnt->flags |= SMB_MOUNT_UNICODE;
- VERBOSE("Unicode enabled\n");
- } else {
- server->mnt->flags &= ~SMB_MOUNT_UNICODE;
- }
-#if 0
- /* flags we may test for other patches ... */
- if (server->opt.capabilities & SMB_CAP_LARGE_READX) {
- VERBOSE("Large reads enabled\n");
- }
- if (server->opt.capabilities & SMB_CAP_LARGE_WRITEX) {
- VERBOSE("Large writes enabled\n");
- }
-#endif
- if (server->opt.capabilities & SMB_CAP_UNIX) {
- struct inode *inode;
- VERBOSE("Using UNIX CIFS extensions\n");
- install_ops(server->ops, &smb_ops_unix);
- inode = SB_of(server)->s_root->d_inode;
- if (inode)
- inode->i_op = &smb_dir_inode_operations_unix;
- }
-
- VERBOSE("protocol=%d, max_xmit=%d, pid=%d capabilities=0x%x\n",
- server->opt.protocol, server->opt.max_xmit,
- pid_nr(server->conn_pid), server->opt.capabilities);
-
- /* FIXME: this really should be done by smbmount. */
- if (server->opt.max_xmit > SMB_MAX_PACKET_SIZE) {
- server->opt.max_xmit = SMB_MAX_PACKET_SIZE;
- }
-
- smb_unlock_server(server);
- smbiod_wake_up();
- if (server->opt.capabilities & SMB_CAP_UNIX)
- smb_proc_query_cifsunix(server);
-
- server->conn_complete++;
- wake_up_interruptible_all(&server->conn_wq);
- return error;
-
-out:
- smb_unlock_server(server);
- smbiod_wake_up();
- return error;
-
-out_putf:
- fput(filp);
- goto out;
-}
-
-/* smb_setup_header: We completely set up the packet. You only have to
- insert the command-specific fields */
-
-__u8 *
-smb_setup_header(struct smb_request *req, __u8 command, __u16 wct, __u16 bcc)
-{
- __u32 xmit_len = SMB_HEADER_LEN + wct * sizeof(__u16) + bcc + 2;
- __u8 *p = req->rq_header;
- struct smb_sb_info *server = req->rq_server;
-
- p = smb_encode_smb_length(p, xmit_len - 4);
-
- *p++ = 0xff;
- *p++ = 'S';
- *p++ = 'M';
- *p++ = 'B';
- *p++ = command;
-
- memset(p, '\0', 19);
- p += 19;
- p += 8;
-
- if (server->opt.protocol > SMB_PROTOCOL_CORE) {
- int flags = SMB_FLAGS_CASELESS_PATHNAMES;
- int flags2 = SMB_FLAGS2_LONG_PATH_COMPONENTS |
- SMB_FLAGS2_EXTENDED_ATTRIBUTES; /* EA? not really ... */
-
- *(req->rq_header + smb_flg) = flags;
- if (server->mnt->flags & SMB_MOUNT_UNICODE)
- flags2 |= SMB_FLAGS2_UNICODE_STRINGS;
- WSET(req->rq_header, smb_flg2, flags2);
- }
- *p++ = wct; /* wct */
- p += 2 * wct;
- WSET(p, 0, bcc);
-
- /* Include the header in the data to send */
- req->rq_iovlen = 1;
- req->rq_iov[0].iov_base = req->rq_header;
- req->rq_iov[0].iov_len = xmit_len - bcc;
-
- return req->rq_buffer;
-}
-
-static void
-smb_setup_bcc(struct smb_request *req, __u8 *p)
-{
- u16 bcc = p - req->rq_buffer;
- u8 *pbcc = req->rq_header + SMB_HEADER_LEN + 2*SMB_WCT(req->rq_header);
-
- WSET(pbcc, 0, bcc);
-
- smb_encode_smb_length(req->rq_header, SMB_HEADER_LEN +
- 2*SMB_WCT(req->rq_header) - 2 + bcc);
-
- /* Include the "bytes" in the data to send */
- req->rq_iovlen = 2;
- req->rq_iov[1].iov_base = req->rq_buffer;
- req->rq_iov[1].iov_len = bcc;
-}
-
-static int
-smb_proc_seek(struct smb_sb_info *server, __u16 fileid,
- __u16 mode, off_t offset)
-{
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBlseek, 4, 0);
- WSET(req->rq_header, smb_vwv0, fileid);
- WSET(req->rq_header, smb_vwv1, mode);
- DSET(req->rq_header, smb_vwv2, offset);
- req->rq_flags |= SMB_REQ_NORETRY;
-
- result = smb_request_ok(req, SMBlseek, 2, 0);
- if (result < 0) {
- result = 0;
- goto out_free;
- }
-
- result = DVAL(req->rq_header, smb_vwv0);
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_open(struct smb_sb_info *server, struct dentry *dentry, int wish)
-{
- struct inode *ino = dentry->d_inode;
- struct smb_inode_info *ei = SMB_I(ino);
- int mode, read_write = 0x42, read_only = 0x40;
- int res;
- char *p;
- struct smb_request *req;
-
- /*
- * Attempt to open r/w, unless there are no write privileges.
- */
- mode = read_write;
- if (!(ino->i_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
- mode = read_only;
-#if 0
- /* FIXME: why is this code not in? below we fix it so that a caller
- wanting RO doesn't get RW. smb_revalidate_inode does some
- optimization based on access mode. tail -f needs it to be correct.
-
- We must open rw since we don't do the open if called a second time
- with different 'wish'. Is that not supported by smb servers? */
- if (!(wish & (O_WRONLY | O_RDWR)))
- mode = read_only;
-#endif
-
- res = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- retry:
- p = smb_setup_header(req, SMBopen, 2, 0);
- WSET(req->rq_header, smb_vwv0, mode);
- WSET(req->rq_header, smb_vwv1, aSYSTEM | aHIDDEN | aDIR);
- res = smb_simple_encode_path(req, &p, dentry, NULL);
- if (res < 0)
- goto out_free;
- smb_setup_bcc(req, p);
-
- res = smb_request_ok(req, SMBopen, 7, 0);
- if (res != 0) {
- if (mode == read_write &&
- (res == -EACCES || res == -ETXTBSY || res == -EROFS))
- {
- VERBOSE("%s/%s R/W failed, error=%d, retrying R/O\n",
- DENTRY_PATH(dentry), res);
- mode = read_only;
- req->rq_flags = 0;
- goto retry;
- }
- goto out_free;
- }
- /* We should now have data in vwv[0..6]. */
-
- ei->fileid = WVAL(req->rq_header, smb_vwv0);
- ei->attr = WVAL(req->rq_header, smb_vwv1);
- /* smb_vwv2 has mtime */
- /* smb_vwv4 has size */
- ei->access = (WVAL(req->rq_header, smb_vwv6) & SMB_ACCMASK);
- ei->open = server->generation;
-
-out_free:
- smb_rput(req);
-out:
- return res;
-}
-
-/*
- * Make sure the file is open, and check that the access
- * is compatible with the desired access.
- */
-int
-smb_open(struct dentry *dentry, int wish)
-{
- struct inode *inode = dentry->d_inode;
- int result;
- __u16 access;
-
- result = -ENOENT;
- if (!inode) {
- printk(KERN_ERR "smb_open: no inode for dentry %s/%s\n",
- DENTRY_PATH(dentry));
- goto out;
- }
-
- if (!smb_is_open(inode)) {
- struct smb_sb_info *server = server_from_inode(inode);
- result = 0;
- if (!smb_is_open(inode))
- result = smb_proc_open(server, dentry, wish);
- if (result)
- goto out;
- /*
- * A successful open means the path is still valid ...
- */
- smb_renew_times(dentry);
- }
-
- /*
- * Check whether the access is compatible with the desired mode.
- */
- result = 0;
- access = SMB_I(inode)->access;
- if (access != wish && access != SMB_O_RDWR) {
- PARANOIA("%s/%s access denied, access=%x, wish=%x\n",
- DENTRY_PATH(dentry), access, wish);
- result = -EACCES;
- }
-out:
- return result;
-}
-
-static int
-smb_proc_close(struct smb_sb_info *server, __u16 fileid, __u32 mtime)
-{
- struct smb_request *req;
- int result = -ENOMEM;
-
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBclose, 3, 0);
- WSET(req->rq_header, smb_vwv0, fileid);
- DSET(req->rq_header, smb_vwv1, utc2local(server, mtime));
- req->rq_flags |= SMB_REQ_NORETRY;
- result = smb_request_ok(req, SMBclose, 0, 0);
-
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * Win NT 4.0 has an apparent bug in that it fails to update the
- * modify time when writing to a file. As a workaround, we update
- * both modify and access time locally, and post the times to the
- * server when closing the file.
- */
-static int
-smb_proc_close_inode(struct smb_sb_info *server, struct inode * ino)
-{
- struct smb_inode_info *ei = SMB_I(ino);
- int result = 0;
- if (smb_is_open(ino))
- {
- /*
- * We clear the open flag in advance, in case another
- * process observes the value while we block below.
- */
- ei->open = 0;
-
- /*
- * Kludge alert: SMB timestamps are accurate only to
- * two seconds ... round the times to avoid needless
- * cache invalidations!
- */
- if (ino->i_mtime.tv_sec & 1) {
- ino->i_mtime.tv_sec--;
- ino->i_mtime.tv_nsec = 0;
- }
- if (ino->i_atime.tv_sec & 1) {
- ino->i_atime.tv_sec--;
- ino->i_atime.tv_nsec = 0;
- }
- /*
- * If the file is open with write permissions,
- * update the time stamps to sync mtime and atime.
- */
- if ((server->opt.capabilities & SMB_CAP_UNIX) == 0 &&
- (server->opt.protocol >= SMB_PROTOCOL_LANMAN2) &&
- !(ei->access == SMB_O_RDONLY))
- {
- struct smb_fattr fattr;
- smb_get_inode_attr(ino, &fattr);
- smb_proc_setattr_ext(server, ino, &fattr);
- }
-
- result = smb_proc_close(server, ei->fileid, ino->i_mtime.tv_sec);
- /*
- * Force a revalidation after closing ... some servers
- * don't post the size until the file has been closed.
- */
- if (server->opt.protocol < SMB_PROTOCOL_NT1)
- ei->oldmtime = 0;
- ei->closed = jiffies;
- }
- return result;
-}
-
-int
-smb_close(struct inode *ino)
-{
- int result = 0;
-
- if (smb_is_open(ino)) {
- struct smb_sb_info *server = server_from_inode(ino);
- result = smb_proc_close_inode(server, ino);
- }
- return result;
-}
-
-/*
- * This is used to close a file following a failed instantiate.
- * Since we don't have an inode, we can't use any of the above.
- */
-int
-smb_close_fileid(struct dentry *dentry, __u16 fileid)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- int result;
-
- result = smb_proc_close(server, fileid, get_seconds());
- return result;
-}
-
-/* In smb_proc_read and smb_proc_write we do not retry, because the
- file-id would not be valid after a reconnection. */
-
-static void
-smb_proc_read_data(struct smb_request *req)
-{
- req->rq_iov[0].iov_base = req->rq_buffer;
- req->rq_iov[0].iov_len = 3;
-
- req->rq_iov[1].iov_base = req->rq_page;
- req->rq_iov[1].iov_len = req->rq_rsize;
- req->rq_iovlen = 2;
-
- req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
-}
-
-static int
-smb_proc_read(struct inode *inode, loff_t offset, int count, char *data)
-{
- struct smb_sb_info *server = server_from_inode(inode);
- __u16 returned_count, data_len;
- unsigned char *buf;
- int result;
- struct smb_request *req;
- u8 rbuf[4];
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBread, 5, 0);
- buf = req->rq_header;
- WSET(buf, smb_vwv0, SMB_I(inode)->fileid);
- WSET(buf, smb_vwv1, count);
- DSET(buf, smb_vwv2, offset);
- WSET(buf, smb_vwv4, 0);
-
- req->rq_page = data;
- req->rq_rsize = count;
- req->rq_callback = smb_proc_read_data;
- req->rq_buffer = rbuf;
- req->rq_flags |= SMB_REQ_NORETRY | SMB_REQ_STATIC;
-
- result = smb_request_ok(req, SMBread, 5, -1);
- if (result < 0)
- goto out_free;
- returned_count = WVAL(req->rq_header, smb_vwv0);
-
- data_len = WVAL(rbuf, 1);
-
- if (returned_count != data_len) {
- printk(KERN_NOTICE "smb_proc_read: returned != data_len\n");
- printk(KERN_NOTICE "smb_proc_read: ret_c=%d, data_len=%d\n",
- returned_count, data_len);
- }
- result = data_len;
-
-out_free:
- smb_rput(req);
-out:
- VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
- inode->i_ino, SMB_I(inode)->fileid, count, result);
- return result;
-}
-
-static int
-smb_proc_write(struct inode *inode, loff_t offset, int count, const char *data)
-{
- struct smb_sb_info *server = server_from_inode(inode);
- int result;
- u16 fileid = SMB_I(inode)->fileid;
- u8 buf[4];
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld\n",
- inode->i_ino, fileid, count, offset);
-
- smb_setup_header(req, SMBwrite, 5, count + 3);
- WSET(req->rq_header, smb_vwv0, fileid);
- WSET(req->rq_header, smb_vwv1, count);
- DSET(req->rq_header, smb_vwv2, offset);
- WSET(req->rq_header, smb_vwv4, 0);
-
- buf[0] = 1;
- WSET(buf, 1, count); /* yes, again ... */
- req->rq_iov[1].iov_base = buf;
- req->rq_iov[1].iov_len = 3;
- req->rq_iov[2].iov_base = (char *) data;
- req->rq_iov[2].iov_len = count;
- req->rq_iovlen = 3;
- req->rq_flags |= SMB_REQ_NORETRY;
-
- result = smb_request_ok(req, SMBwrite, 1, 0);
- if (result >= 0)
- result = WVAL(req->rq_header, smb_vwv0);
-
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * In smb_proc_readX and smb_proc_writeX we do not retry, because the
- * file-id would not be valid after a reconnection.
- */
-
-#define SMB_READX_MAX_PAD 64
-static void
-smb_proc_readX_data(struct smb_request *req)
-{
- /* header length, excluding the netbios length (-4) */
- int hdrlen = SMB_HEADER_LEN + req->rq_resp_wct*2 - 2;
- int data_off = WVAL(req->rq_header, smb_vwv6);
-
- /*
- * Some genius made the padding to the data bytes arbitrary.
- * So we must first calculate the amount of padding used by the server.
- */
- data_off -= hdrlen;
- if (data_off > SMB_READX_MAX_PAD || data_off < 0) {
- PARANOIA("offset is larger than SMB_READX_MAX_PAD or negative!\n");
- PARANOIA("%d > %d || %d < 0\n", data_off, SMB_READX_MAX_PAD, data_off);
- req->rq_rlen = req->rq_bufsize + 1;
- return;
- }
- req->rq_iov[0].iov_base = req->rq_buffer;
- req->rq_iov[0].iov_len = data_off;
-
- req->rq_iov[1].iov_base = req->rq_page;
- req->rq_iov[1].iov_len = req->rq_rsize;
- req->rq_iovlen = 2;
-
- req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
-}
-
-static int
-smb_proc_readX(struct inode *inode, loff_t offset, int count, char *data)
-{
- struct smb_sb_info *server = server_from_inode(inode);
- unsigned char *buf;
- int result;
- struct smb_request *req;
- static char pad[SMB_READX_MAX_PAD];
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBreadX, 12, 0);
- buf = req->rq_header;
- WSET(buf, smb_vwv0, 0x00ff);
- WSET(buf, smb_vwv1, 0);
- WSET(buf, smb_vwv2, SMB_I(inode)->fileid);
- DSET(buf, smb_vwv3, (u32)offset); /* low 32 bits */
- WSET(buf, smb_vwv5, count);
- WSET(buf, smb_vwv6, 0);
- DSET(buf, smb_vwv7, 0);
- WSET(buf, smb_vwv9, 0);
- DSET(buf, smb_vwv10, (u32)(offset >> 32)); /* high 32 bits */
- WSET(buf, smb_vwv11, 0);
-
- req->rq_page = data;
- req->rq_rsize = count;
- req->rq_callback = smb_proc_readX_data;
- req->rq_buffer = pad;
- req->rq_bufsize = SMB_READX_MAX_PAD;
- req->rq_flags |= SMB_REQ_STATIC | SMB_REQ_NORETRY;
-
- result = smb_request_ok(req, SMBreadX, 12, -1);
- if (result < 0)
- goto out_free;
- result = WVAL(req->rq_header, smb_vwv5);
-
-out_free:
- smb_rput(req);
-out:
- VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
- inode->i_ino, SMB_I(inode)->fileid, count, result);
- return result;
-}
-
-static int
-smb_proc_writeX(struct inode *inode, loff_t offset, int count, const char *data)
-{
- struct smb_sb_info *server = server_from_inode(inode);
- int result;
- u8 *p;
- static u8 pad[4];
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld\n",
- inode->i_ino, SMB_I(inode)->fileid, count, offset);
-
- p = smb_setup_header(req, SMBwriteX, 14, count + 1);
- WSET(req->rq_header, smb_vwv0, 0x00ff);
- WSET(req->rq_header, smb_vwv1, 0);
- WSET(req->rq_header, smb_vwv2, SMB_I(inode)->fileid);
- DSET(req->rq_header, smb_vwv3, (u32)offset); /* low 32 bits */
- DSET(req->rq_header, smb_vwv5, 0);
- WSET(req->rq_header, smb_vwv7, 0); /* write mode */
- WSET(req->rq_header, smb_vwv8, 0);
- WSET(req->rq_header, smb_vwv9, 0);
- WSET(req->rq_header, smb_vwv10, count); /* data length */
- WSET(req->rq_header, smb_vwv11, smb_vwv12 + 2 + 1);
- DSET(req->rq_header, smb_vwv12, (u32)(offset >> 32));
-
- req->rq_iov[1].iov_base = pad;
- req->rq_iov[1].iov_len = 1;
- req->rq_iov[2].iov_base = (char *) data;
- req->rq_iov[2].iov_len = count;
- req->rq_iovlen = 3;
- req->rq_flags |= SMB_REQ_NORETRY;
-
- result = smb_request_ok(req, SMBwriteX, 6, 0);
- if (result >= 0)
- result = WVAL(req->rq_header, smb_vwv2);
-
- smb_rput(req);
-out:
- return result;
-}
-
-int
-smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- char *p;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- p = smb_setup_header(req, SMBcreate, 3, 0);
- WSET(req->rq_header, smb_vwv0, attr);
- DSET(req->rq_header, smb_vwv1, utc2local(server, ctime));
- result = smb_simple_encode_path(req, &p, dentry, NULL);
- if (result < 0)
- goto out_free;
- smb_setup_bcc(req, p);
-
- result = smb_request_ok(req, SMBcreate, 1, 0);
- if (result < 0)
- goto out_free;
-
- *fileid = WVAL(req->rq_header, smb_vwv0);
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-int
-smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry)
-{
- struct smb_sb_info *server = server_from_dentry(old_dentry);
- char *p;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- p = smb_setup_header(req, SMBmv, 1, 0);
- WSET(req->rq_header, smb_vwv0, aSYSTEM | aHIDDEN | aDIR);
- result = smb_simple_encode_path(req, &p, old_dentry, NULL);
- if (result < 0)
- goto out_free;
- result = smb_simple_encode_path(req, &p, new_dentry, NULL);
- if (result < 0)
- goto out_free;
- smb_setup_bcc(req, p);
-
- if ((result = smb_request_ok(req, SMBmv, 0, 0)) < 0)
- goto out_free;
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * Code common to mkdir and rmdir.
- */
-static int
-smb_proc_generic_command(struct dentry *dentry, __u8 command)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- char *p;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- p = smb_setup_header(req, command, 0, 0);
- result = smb_simple_encode_path(req, &p, dentry, NULL);
- if (result < 0)
- goto out_free;
- smb_setup_bcc(req, p);
-
- result = smb_request_ok(req, command, 0, 0);
- if (result < 0)
- goto out_free;
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-int
-smb_proc_mkdir(struct dentry *dentry)
-{
- return smb_proc_generic_command(dentry, SMBmkdir);
-}
-
-int
-smb_proc_rmdir(struct dentry *dentry)
-{
- return smb_proc_generic_command(dentry, SMBrmdir);
-}
-
-#if SMBFS_POSIX_UNLINK
-/*
- * Removes readonly attribute from a file. Used by unlink to give posix
- * semantics.
- */
-static int
-smb_set_rw(struct dentry *dentry,struct smb_sb_info *server)
-{
- int result;
- struct smb_fattr fattr;
-
- /* FIXME: cifsUE should allow removing a readonly file. */
-
- /* first get current attribute */
- smb_init_dirent(server, &fattr);
- result = server->ops->getattr(server, dentry, &fattr);
- smb_finish_dirent(server, &fattr);
- if (result < 0)
- return result;
-
- /* if RONLY attribute is set, remove it */
- if (fattr.attr & aRONLY) { /* read only attribute is set */
- fattr.attr &= ~aRONLY;
- result = smb_proc_setattr_core(server, dentry, fattr.attr);
- }
- return result;
-}
-#endif
-
-int
-smb_proc_unlink(struct dentry *dentry)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- int flag = 0;
- char *p;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- retry:
- p = smb_setup_header(req, SMBunlink, 1, 0);
- WSET(req->rq_header, smb_vwv0, aSYSTEM | aHIDDEN);
- result = smb_simple_encode_path(req, &p, dentry, NULL);
- if (result < 0)
- goto out_free;
- smb_setup_bcc(req, p);
-
- if ((result = smb_request_ok(req, SMBunlink, 0, 0)) < 0) {
-#if SMBFS_POSIX_UNLINK
- if (result == -EACCES && !flag) {
- /* Posix semantics is for the read-only state
- of a file to be ignored in unlink(). In the
- SMB world a unlink() is refused on a
- read-only file. To make things easier for
- unix users we try to override the files
- permission if the unlink fails with the
- right error.
- This introduces a race condition that could
- lead to a file being written by someone who
- shouldn't have access, but as far as I can
- tell that is unavoidable */
-
- /* remove RONLY attribute and try again */
- result = smb_set_rw(dentry,server);
- if (result == 0) {
- flag = 1;
- req->rq_flags = 0;
- goto retry;
- }
- }
-#endif
- goto out_free;
- }
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-int
-smb_proc_flush(struct smb_sb_info *server, __u16 fileid)
-{
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBflush, 1, 0);
- WSET(req->rq_header, smb_vwv0, fileid);
- req->rq_flags |= SMB_REQ_NORETRY;
- result = smb_request_ok(req, SMBflush, 0, 0);
-
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_trunc32(struct inode *inode, loff_t length)
-{
- /*
- * Writing 0bytes is old-SMB magic for truncating files.
- * MAX_NON_LFS should prevent this from being called with a too
- * large offset.
- */
- return smb_proc_write(inode, length, 0, NULL);
-}
-
-static int
-smb_proc_trunc64(struct inode *inode, loff_t length)
-{
- struct smb_sb_info *server = server_from_inode(inode);
- int result;
- char *param;
- char *data;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 14)))
- goto out;
-
- param = req->rq_buffer;
- data = req->rq_buffer + 6;
-
- /* FIXME: must we also set allocation size? winNT seems to do that */
- WSET(param, 0, SMB_I(inode)->fileid);
- WSET(param, 2, SMB_SET_FILE_END_OF_FILE_INFO);
- WSET(param, 4, 0);
- LSET(data, 0, length);
-
- req->rq_trans2_command = TRANSACT2_SETFILEINFO;
- req->rq_ldata = 8;
- req->rq_data = data;
- req->rq_lparm = 6;
- req->rq_parm = param;
- req->rq_flags |= SMB_REQ_NORETRY;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
-
- result = 0;
- if (req->rq_rcls != 0)
- result = smb_errno(req);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_trunc95(struct inode *inode, loff_t length)
-{
- struct smb_sb_info *server = server_from_inode(inode);
- int result = smb_proc_trunc32(inode, length);
-
- /*
- * win9x doesn't appear to update the size immediately.
- * It will return the old file size after the truncate,
- * confusing smbfs. So we force an update.
- *
- * FIXME: is this still necessary?
- */
- smb_proc_flush(server, SMB_I(inode)->fileid);
- return result;
-}
-
-static void
-smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
-{
- memset(fattr, 0, sizeof(*fattr));
-
- fattr->f_nlink = 1;
- fattr->f_uid = server->mnt->uid;
- fattr->f_gid = server->mnt->gid;
- fattr->f_unix = 0;
-}
-
-static void
-smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
-{
- if (fattr->f_unix)
- return;
-
- fattr->f_mode = server->mnt->file_mode;
- if (fattr->attr & aDIR) {
- fattr->f_mode = server->mnt->dir_mode;
- fattr->f_size = SMB_ST_BLKSIZE;
- }
- /* Check the read-only flag */
- if (fattr->attr & aRONLY)
- fattr->f_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
-
- /* How many 512 byte blocks do we need for this file? */
- fattr->f_blocks = 0;
- if (fattr->f_size != 0)
- fattr->f_blocks = 1 + ((fattr->f_size-1) >> 9);
- return;
-}
-
-void
-smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr,
- struct super_block *sb)
-{
- smb_init_dirent(server, fattr);
- fattr->attr = aDIR;
- fattr->f_ino = 2; /* traditional root inode number */
- fattr->f_mtime = current_fs_time(sb);
- smb_finish_dirent(server, fattr);
-}
-
-/*
- * Decode a dirent for old protocols
- *
- * qname is filled with the decoded, and possibly translated, name.
- * fattr receives decoded attributes
- *
- * Bugs Noted:
- * (1) Pathworks servers may pad the name with extra spaces.
- */
-static char *
-smb_decode_short_dirent(struct smb_sb_info *server, char *p,
- struct qstr *qname, struct smb_fattr *fattr,
- unsigned char *name_buf)
-{
- int len;
-
- /*
- * SMB doesn't have a concept of inode numbers ...
- */
- smb_init_dirent(server, fattr);
- fattr->f_ino = 0; /* FIXME: do we need this? */
-
- p += SMB_STATUS_SIZE; /* reserved (search_status) */
- fattr->attr = *p;
- fattr->f_mtime.tv_sec = date_dos2unix(server, WVAL(p, 3), WVAL(p, 1));
- fattr->f_mtime.tv_nsec = 0;
- fattr->f_size = DVAL(p, 5);
- fattr->f_ctime = fattr->f_mtime;
- fattr->f_atime = fattr->f_mtime;
- qname->name = p + 9;
- len = strnlen(qname->name, 12);
-
- /*
- * Trim trailing blanks for Pathworks servers
- */
- while (len > 2 && qname->name[len-1] == ' ')
- len--;
-
- smb_finish_dirent(server, fattr);
-
-#if 0
- /* FIXME: These only work for ascii chars, and recent smbmount doesn't
- allow the flag to be set anyway. It kills const. Remove? */
- switch (server->opt.case_handling) {
- case SMB_CASE_UPPER:
- str_upper(entry->name, len);
- break;
- case SMB_CASE_LOWER:
- str_lower(entry->name, len);
- break;
- default:
- break;
- }
-#endif
-
- qname->len = 0;
- len = server->ops->convert(name_buf, SMB_MAXNAMELEN,
- qname->name, len,
- server->remote_nls, server->local_nls);
- if (len > 0) {
- qname->len = len;
- qname->name = name_buf;
- DEBUG1("len=%d, name=%.*s\n",qname->len,qname->len,qname->name);
- }
-
- return p + 22;
-}
-
-/*
- * This routine is used to read in directory entries from the network.
- * Note that it is for short directory name seeks, i.e.: protocol <
- * SMB_PROTOCOL_LANMAN2
- */
-static int
-smb_proc_readdir_short(struct file *filp, void *dirent, filldir_t filldir,
- struct smb_cache_control *ctl)
-{
- struct dentry *dir = filp->f_path.dentry;
- struct smb_sb_info *server = server_from_dentry(dir);
- struct qstr qname;
- struct smb_fattr fattr;
- char *p;
- int result;
- int i, first, entries_seen, entries;
- int entries_asked = (server->opt.max_xmit - 100) / SMB_DIRINFO_SIZE;
- __u16 bcc;
- __u16 count;
- char status[SMB_STATUS_SIZE];
- static struct qstr mask = {
- .name = "*.*",
- .len = 3,
- };
- unsigned char *last_status;
- struct smb_request *req;
- unsigned char *name_buf;
-
- VERBOSE("%s/%s\n", DENTRY_PATH(dir));
-
- lock_kernel();
-
- result = -ENOMEM;
- if (! (name_buf = kmalloc(SMB_MAXNAMELEN, GFP_KERNEL)))
- goto out;
-
- first = 1;
- entries = 0;
- entries_seen = 2; /* implicit . and .. */
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, server->opt.max_xmit)))
- goto out_name;
-
- while (1) {
- p = smb_setup_header(req, SMBsearch, 2, 0);
- WSET(req->rq_header, smb_vwv0, entries_asked);
- WSET(req->rq_header, smb_vwv1, aDIR);
- if (first == 1) {
- result = smb_simple_encode_path(req, &p, dir, &mask);
- if (result < 0)
- goto out_free;
- if (p + 3 > (char *)req->rq_buffer + req->rq_bufsize) {
- result = -ENAMETOOLONG;
- goto out_free;
- }
- *p++ = 5;
- WSET(p, 0, 0);
- p += 2;
- first = 0;
- } else {
- if (p + 5 + SMB_STATUS_SIZE >
- (char *)req->rq_buffer + req->rq_bufsize) {
- result = -ENAMETOOLONG;
- goto out_free;
- }
-
- *p++ = 4;
- *p++ = 0;
- *p++ = 5;
- WSET(p, 0, SMB_STATUS_SIZE);
- p += 2;
- memcpy(p, status, SMB_STATUS_SIZE);
- p += SMB_STATUS_SIZE;
- }
-
- smb_setup_bcc(req, p);
-
- result = smb_request_ok(req, SMBsearch, 1, -1);
- if (result < 0) {
- if ((req->rq_rcls == ERRDOS) &&
- (req->rq_err == ERRnofiles))
- break;
- goto out_free;
- }
- count = WVAL(req->rq_header, smb_vwv0);
- if (count <= 0)
- break;
-
- result = -EIO;
- bcc = smb_bcc(req->rq_header);
- if (bcc != count * SMB_DIRINFO_SIZE + 3)
- goto out_free;
- p = req->rq_buffer + 3;
-
-
- /* Make sure the response fits in the buffer. Fixed sized
- entries means we don't have to check in the decode loop. */
-
- last_status = req->rq_buffer + 3 + (count-1) * SMB_DIRINFO_SIZE;
-
- if (last_status + SMB_DIRINFO_SIZE >=
- req->rq_buffer + req->rq_bufsize) {
- printk(KERN_ERR "smb_proc_readdir_short: "
- "last dir entry outside buffer! "
- "%d@%p %d@%p\n", SMB_DIRINFO_SIZE, last_status,
- req->rq_bufsize, req->rq_buffer);
- goto out_free;
- }
-
- /* Read the last entry into the status field. */
- memcpy(status, last_status, SMB_STATUS_SIZE);
-
-
- /* Now we are ready to parse smb directory entries. */
-
- for (i = 0; i < count; i++) {
- p = smb_decode_short_dirent(server, p,
- &qname, &fattr, name_buf);
- if (qname.len == 0)
- continue;
-
- if (entries_seen == 2 && qname.name[0] == '.') {
- if (qname.len == 1)
- continue;
- if (qname.name[1] == '.' && qname.len == 2)
- continue;
- }
- if (!smb_fill_cache(filp, dirent, filldir, ctl,
- &qname, &fattr))
- ; /* stop reading? */
- entries_seen++;
- }
- }
- result = entries;
-
-out_free:
- smb_rput(req);
-out_name:
- kfree(name_buf);
-out:
- unlock_kernel();
- return result;
-}
-
-static void smb_decode_unix_basic(struct smb_fattr *fattr, struct smb_sb_info *server, char *p)
-{
- u64 size, disk_bytes;
-
- /* FIXME: verify nls support. all is sent as utf8? */
-
- fattr->f_unix = 1;
- fattr->f_mode = 0;
-
- /* FIXME: use the uniqueID from the remote instead? */
- /* 0 L file size in bytes */
- /* 8 L file size on disk in bytes (block count) */
- /* 40 L uid */
- /* 48 L gid */
- /* 56 W file type */
- /* 60 L devmajor */
- /* 68 L devminor */
- /* 76 L unique ID (inode) */
- /* 84 L permissions */
- /* 92 L link count */
-
- size = LVAL(p, 0);
- disk_bytes = LVAL(p, 8);
-
- /*
- * Some samba versions round up on-disk byte usage
- * to 1MB boundaries, making it useless. When seeing
- * that, use the size instead.
- */
- if (!(disk_bytes & 0xfffff))
- disk_bytes = size+511;
-
- fattr->f_size = size;
- fattr->f_blocks = disk_bytes >> 9;
- fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 16));
- fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 24));
- fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 32));
-
- if (server->mnt->flags & SMB_MOUNT_UID)
- fattr->f_uid = server->mnt->uid;
- else
- fattr->f_uid = LVAL(p, 40);
-
- if (server->mnt->flags & SMB_MOUNT_GID)
- fattr->f_gid = server->mnt->gid;
- else
- fattr->f_gid = LVAL(p, 48);
-
- fattr->f_mode |= smb_filetype_to_mode(WVAL(p, 56));
-
- if (S_ISBLK(fattr->f_mode) || S_ISCHR(fattr->f_mode)) {
- __u64 major = LVAL(p, 60);
- __u64 minor = LVAL(p, 68);
-
- fattr->f_rdev = MKDEV(major & 0xffffffff, minor & 0xffffffff);
- if (MAJOR(fattr->f_rdev) != (major & 0xffffffff) ||
- MINOR(fattr->f_rdev) != (minor & 0xffffffff))
- fattr->f_rdev = 0;
- }
-
- fattr->f_mode |= LVAL(p, 84);
-
- if ( (server->mnt->flags & SMB_MOUNT_DMODE) &&
- (S_ISDIR(fattr->f_mode)) )
- fattr->f_mode = (server->mnt->dir_mode & S_IRWXUGO) | S_IFDIR;
- else if ( (server->mnt->flags & SMB_MOUNT_FMODE) &&
- !(S_ISDIR(fattr->f_mode)) )
- fattr->f_mode = (server->mnt->file_mode & S_IRWXUGO) |
- (fattr->f_mode & S_IFMT);
-
-}
-
-/*
- * Interpret a long filename structure using the specified info level:
- * level 1 for anything below NT1 protocol
- * level 260 for NT1 protocol
- *
- * qname is filled with the decoded, and possibly translated, name
- * fattr receives decoded attributes.
- *
- * Bugs Noted:
- * (1) Win NT 4.0 appends a null byte to names and counts it in the length!
- */
-static char *
-smb_decode_long_dirent(struct smb_sb_info *server, char *p, int level,
- struct qstr *qname, struct smb_fattr *fattr,
- unsigned char *name_buf)
-{
- char *result;
- unsigned int len = 0;
- int n;
- __u16 date, time;
- int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE);
-
- /*
- * SMB doesn't have a concept of inode numbers ...
- */
- smb_init_dirent(server, fattr);
- fattr->f_ino = 0; /* FIXME: do we need this? */
-
- switch (level) {
- case 1:
- len = *((unsigned char *) p + 22);
- qname->name = p + 23;
- result = p + 24 + len;
-
- date = WVAL(p, 0);
- time = WVAL(p, 2);
- fattr->f_ctime.tv_sec = date_dos2unix(server, date, time);
- fattr->f_ctime.tv_nsec = 0;
-
- date = WVAL(p, 4);
- time = WVAL(p, 6);
- fattr->f_atime.tv_sec = date_dos2unix(server, date, time);
- fattr->f_atime.tv_nsec = 0;
-
- date = WVAL(p, 8);
- time = WVAL(p, 10);
- fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
- fattr->f_mtime.tv_nsec = 0;
- fattr->f_size = DVAL(p, 12);
- /* ULONG allocation size */
- fattr->attr = WVAL(p, 20);
-
- VERBOSE("info 1 at %p, len=%d, name=%.*s\n",
- p, len, len, qname->name);
- break;
- case 260:
- result = p + WVAL(p, 0);
- len = DVAL(p, 60);
- if (len > 255) len = 255;
- /* NT4 null terminates, unless we are using unicode ... */
- qname->name = p + 94;
- if (!unicode && len && qname->name[len-1] == '\0')
- len--;
-
- fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 8));
- fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 16));
- fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 24));
- /* change time (32) */
- fattr->f_size = LVAL(p, 40);
- /* alloc size (48) */
- fattr->attr = DVAL(p, 56);
-
- VERBOSE("info 260 at %p, len=%d, name=%.*s\n",
- p, len, len, qname->name);
- break;
- case SMB_FIND_FILE_UNIX:
- result = p + WVAL(p, 0);
- qname->name = p + 108;
-
- len = strlen(qname->name);
- /* FIXME: should we check the length?? */
-
- p += 8;
- smb_decode_unix_basic(fattr, server, p);
- VERBOSE("info SMB_FIND_FILE_UNIX at %p, len=%d, name=%.*s\n",
- p, len, len, qname->name);
- break;
- default:
- PARANOIA("Unknown info level %d\n", level);
- result = p + WVAL(p, 0);
- goto out;
- }
-
- smb_finish_dirent(server, fattr);
-
-#if 0
- /* FIXME: These only work for ascii chars, and recent smbmount doesn't
- allow the flag to be set anyway. Remove? */
- switch (server->opt.case_handling) {
- case SMB_CASE_UPPER:
- str_upper(qname->name, len);
- break;
- case SMB_CASE_LOWER:
- str_lower(qname->name, len);
- break;
- default:
- break;
- }
-#endif
-
- qname->len = 0;
- n = server->ops->convert(name_buf, SMB_MAXNAMELEN,
- qname->name, len,
- server->remote_nls, server->local_nls);
- if (n > 0) {
- qname->len = n;
- qname->name = name_buf;
- }
-
-out:
- return result;
-}
-
-/* findfirst/findnext flags */
-#define SMB_CLOSE_AFTER_FIRST (1<<0)
-#define SMB_CLOSE_IF_END (1<<1)
-#define SMB_REQUIRE_RESUME_KEY (1<<2)
-#define SMB_CONTINUE_BIT (1<<3)
-
-/*
- * Note: samba-2.0.7 (at least) has a very similar routine, cli_list, in
- * source/libsmb/clilist.c. When looking for smb bugs in the readdir code,
- * go there for advise.
- *
- * Bugs Noted:
- * (1) When using Info Level 1 Win NT 4.0 truncates directory listings
- * for certain patterns of names and/or lengths. The breakage pattern
- * is completely reproducible and can be toggled by the creation of a
- * single file. (E.g. echo hi >foo breaks, rm -f foo works.)
- */
-static int
-smb_proc_readdir_long(struct file *filp, void *dirent, filldir_t filldir,
- struct smb_cache_control *ctl)
-{
- struct dentry *dir = filp->f_path.dentry;
- struct smb_sb_info *server = server_from_dentry(dir);
- struct qstr qname;
- struct smb_fattr fattr;
-
- unsigned char *p, *lastname;
- char *mask, *param;
- __u16 command;
- int first, entries_seen;
-
- /* Both NT and OS/2 accept info level 1 (but see note below). */
- int info_level = 260;
- const int max_matches = 512;
-
- unsigned int ff_searchcount = 0;
- unsigned int ff_eos = 0;
- unsigned int ff_lastname = 0;
- unsigned int ff_dir_handle = 0;
- unsigned int loop_count = 0;
- unsigned int mask_len, i;
- int result;
- struct smb_request *req;
- unsigned char *name_buf;
- static struct qstr star = {
- .name = "*",
- .len = 1,
- };
-
- lock_kernel();
-
- /*
- * We always prefer unix style. Use info level 1 for older
- * servers that don't do 260.
- */
- if (server->opt.capabilities & SMB_CAP_UNIX)
- info_level = SMB_FIND_FILE_UNIX;
- else if (server->opt.protocol < SMB_PROTOCOL_NT1)
- info_level = 1;
-
- result = -ENOMEM;
- if (! (name_buf = kmalloc(SMB_MAXNAMELEN+2, GFP_KERNEL)))
- goto out;
- if (! (req = smb_alloc_request(server, server->opt.max_xmit)))
- goto out_name;
- param = req->rq_buffer;
-
- /*
- * Encode the initial path
- */
- mask = param + 12;
-
- result = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dir, &star);
- if (result <= 0)
- goto out_free;
- mask_len = result - 1; /* mask_len is strlen, not #bytes */
- result = 0;
- first = 1;
- VERBOSE("starting mask_len=%d, mask=%s\n", mask_len, mask);
-
- entries_seen = 2;
- ff_eos = 0;
-
- while (ff_eos == 0) {
- loop_count += 1;
- if (loop_count > 10) {
- printk(KERN_WARNING "smb_proc_readdir_long: "
- "Looping in FIND_NEXT??\n");
- result = -EIO;
- break;
- }
-
- if (first != 0) {
- command = TRANSACT2_FINDFIRST;
- WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
- WSET(param, 2, max_matches); /* max count */
- WSET(param, 4, SMB_CLOSE_IF_END);
- WSET(param, 6, info_level);
- DSET(param, 8, 0);
- } else {
- command = TRANSACT2_FINDNEXT;
-
- VERBOSE("handle=0x%X, lastname=%d, mask=%.*s\n",
- ff_dir_handle, ff_lastname, mask_len, mask);
-
- WSET(param, 0, ff_dir_handle); /* search handle */
- WSET(param, 2, max_matches); /* max count */
- WSET(param, 4, info_level);
- DSET(param, 6, 0);
- WSET(param, 10, SMB_CONTINUE_BIT|SMB_CLOSE_IF_END);
- }
-
- req->rq_trans2_command = command;
- req->rq_ldata = 0;
- req->rq_data = NULL;
- req->rq_lparm = 12 + mask_len + 1;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0) {
- PARANOIA("error=%d, breaking\n", result);
- break;
- }
-
- if (req->rq_rcls == ERRSRV && req->rq_err == ERRerror) {
- /* a damn Win95 bug - sometimes it clags if you
- ask it too fast */
- schedule_timeout_interruptible(msecs_to_jiffies(200));
- continue;
- }
-
- if (req->rq_rcls != 0) {
- result = smb_errno(req);
- PARANOIA("name=%s, result=%d, rcls=%d, err=%d\n",
- mask, result, req->rq_rcls, req->rq_err);
- break;
- }
-
- /* parse out some important return info */
- if (first != 0) {
- ff_dir_handle = WVAL(req->rq_parm, 0);
- ff_searchcount = WVAL(req->rq_parm, 2);
- ff_eos = WVAL(req->rq_parm, 4);
- ff_lastname = WVAL(req->rq_parm, 8);
- } else {
- ff_searchcount = WVAL(req->rq_parm, 0);
- ff_eos = WVAL(req->rq_parm, 2);
- ff_lastname = WVAL(req->rq_parm, 6);
- }
-
- if (ff_searchcount == 0)
- break;
-
- /* Now we are ready to parse smb directory entries. */
-
- /* point to the data bytes */
- p = req->rq_data;
- for (i = 0; i < ff_searchcount; i++) {
- /* make sure we stay within the buffer */
- if (p >= req->rq_data + req->rq_ldata) {
- printk(KERN_ERR "smb_proc_readdir_long: "
- "dirent pointer outside buffer! "
- "%p %d@%p\n",
- p, req->rq_ldata, req->rq_data);
- result = -EIO; /* always a comm. error? */
- goto out_free;
- }
-
- p = smb_decode_long_dirent(server, p, info_level,
- &qname, &fattr, name_buf);
-
- /* ignore . and .. from the server */
- if (entries_seen == 2 && qname.name[0] == '.') {
- if (qname.len == 1)
- continue;
- if (qname.name[1] == '.' && qname.len == 2)
- continue;
- }
-
- if (!smb_fill_cache(filp, dirent, filldir, ctl,
- &qname, &fattr))
- ; /* stop reading? */
- entries_seen++;
- }
-
- VERBOSE("received %d entries, eos=%d\n", ff_searchcount,ff_eos);
-
- /*
- * We might need the lastname for continuations.
- *
- * Note that some servers (win95?) point to the filename and
- * others (NT4, Samba using NT1) to the dir entry. We assume
- * here that those who do not point to a filename do not need
- * this info to continue the listing.
- *
- * OS/2 needs this and talks infolevel 1.
- * NetApps want lastname with infolevel 260.
- * win2k want lastname with infolevel 260, and points to
- * the record not to the name.
- * Samba+CifsUnixExt doesn't need lastname.
- *
- * Both are happy if we return the data they point to. So we do.
- * (FIXME: above is not true with win2k)
- */
- mask_len = 0;
- if (info_level != SMB_FIND_FILE_UNIX &&
- ff_lastname > 0 && ff_lastname < req->rq_ldata) {
- lastname = req->rq_data + ff_lastname;
-
- switch (info_level) {
- case 260:
- mask_len = req->rq_ldata - ff_lastname;
- break;
- case 1:
- /* lastname points to a length byte */
- mask_len = *lastname++;
- if (ff_lastname + 1 + mask_len > req->rq_ldata)
- mask_len = req->rq_ldata - ff_lastname - 1;
- break;
- }
-
- /*
- * Update the mask string for the next message.
- */
- if (mask_len > 255)
- mask_len = 255;
- if (mask_len)
- strncpy(mask, lastname, mask_len);
- }
- mask_len = strnlen(mask, mask_len);
- VERBOSE("new mask, len=%d@%d of %d, mask=%.*s\n",
- mask_len, ff_lastname, req->rq_ldata, mask_len, mask);
-
- first = 0;
- loop_count = 0;
- }
-
-out_free:
- smb_rput(req);
-out_name:
- kfree(name_buf);
-out:
- unlock_kernel();
- return result;
-}
-
-/*
- * This version uses the trans2 TRANSACT2_FINDFIRST message
- * to get the attribute data.
- *
- * Bugs Noted:
- */
-static int
-smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
- struct smb_fattr *fattr)
-{
- char *param, *mask;
- __u16 date, time;
- int mask_len, result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
- param = req->rq_buffer;
- mask = param + 12;
-
- mask_len = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dentry,NULL);
- if (mask_len < 0) {
- result = mask_len;
- goto out_free;
- }
- VERBOSE("name=%s, len=%d\n", mask, mask_len);
- WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
- WSET(param, 2, 1); /* max count */
- WSET(param, 4, 1); /* close after this call */
- WSET(param, 6, 1); /* info_level */
- DSET(param, 8, 0);
-
- req->rq_trans2_command = TRANSACT2_FINDFIRST;
- req->rq_ldata = 0;
- req->rq_data = NULL;
- req->rq_lparm = 12 + mask_len;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
- if (req->rq_rcls != 0) {
- result = smb_errno(req);
-#ifdef SMBFS_PARANOIA
- if (result != -ENOENT)
- PARANOIA("error for %s, rcls=%d, err=%d\n",
- mask, req->rq_rcls, req->rq_err);
-#endif
- goto out_free;
- }
- /* Make sure we got enough data ... */
- result = -EINVAL;
- if (req->rq_ldata < 22 || WVAL(req->rq_parm, 2) != 1) {
- PARANOIA("bad result for %s, len=%d, count=%d\n",
- mask, req->rq_ldata, WVAL(req->rq_parm, 2));
- goto out_free;
- }
-
- /*
- * Decode the response into the fattr ...
- */
- date = WVAL(req->rq_data, 0);
- time = WVAL(req->rq_data, 2);
- fattr->f_ctime.tv_sec = date_dos2unix(server, date, time);
- fattr->f_ctime.tv_nsec = 0;
-
- date = WVAL(req->rq_data, 4);
- time = WVAL(req->rq_data, 6);
- fattr->f_atime.tv_sec = date_dos2unix(server, date, time);
- fattr->f_atime.tv_nsec = 0;
-
- date = WVAL(req->rq_data, 8);
- time = WVAL(req->rq_data, 10);
- fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
- fattr->f_mtime.tv_nsec = 0;
- VERBOSE("name=%s, date=%x, time=%x, mtime=%ld\n",
- mask, date, time, fattr->f_mtime.tv_sec);
- fattr->f_size = DVAL(req->rq_data, 12);
- /* ULONG allocation size */
- fattr->attr = WVAL(req->rq_data, 20);
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *fattr)
-{
- int result;
- char *p;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- p = smb_setup_header(req, SMBgetatr, 0, 0);
- result = smb_simple_encode_path(req, &p, dir, NULL);
- if (result < 0)
- goto out_free;
- smb_setup_bcc(req, p);
-
- if ((result = smb_request_ok(req, SMBgetatr, 10, 0)) < 0)
- goto out_free;
- fattr->attr = WVAL(req->rq_header, smb_vwv0);
- fattr->f_mtime.tv_sec = local2utc(server, DVAL(req->rq_header, smb_vwv1));
- fattr->f_mtime.tv_nsec = 0;
- fattr->f_size = DVAL(req->rq_header, smb_vwv3);
- fattr->f_ctime = fattr->f_mtime;
- fattr->f_atime = fattr->f_mtime;
-#ifdef SMBFS_DEBUG_TIMESTAMP
- printk("getattr_core: %s/%s, mtime=%ld\n",
- DENTRY_PATH(dir), fattr->f_mtime);
-#endif
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * Bugs Noted:
- * (1) Win 95 swaps the date and time fields in the standard info level.
- */
-static int
-smb_proc_getattr_trans2(struct smb_sb_info *server, struct dentry *dir,
- struct smb_request *req, int infolevel)
-{
- char *p, *param;
- int result;
-
- param = req->rq_buffer;
- WSET(param, 0, infolevel);
- DSET(param, 2, 0);
- result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
- if (result < 0)
- goto out;
- p = param + 6 + result;
-
- req->rq_trans2_command = TRANSACT2_QPATHINFO;
- req->rq_ldata = 0;
- req->rq_data = NULL;
- req->rq_lparm = p - param;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out;
- if (req->rq_rcls != 0) {
- VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
- ¶m[6], result, req->rq_rcls, req->rq_err);
- result = smb_errno(req);
- goto out;
- }
- result = -ENOENT;
- if (req->rq_ldata < 22) {
- PARANOIA("not enough data for %s, len=%d\n",
- ¶m[6], req->rq_ldata);
- goto out;
- }
-
- result = 0;
-out:
- return result;
-}
-
-static int
-smb_proc_getattr_trans2_std(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *attr)
-{
- u16 date, time;
- int off_date = 0, off_time = 2;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- result = smb_proc_getattr_trans2(server, dir, req, SMB_INFO_STANDARD);
- if (result < 0)
- goto out_free;
-
- /*
- * Kludge alert: Win 95 swaps the date and time field,
- * contrary to the CIFS docs and Win NT practice.
- */
- if (server->mnt->flags & SMB_MOUNT_WIN95) {
- off_date = 2;
- off_time = 0;
- }
- date = WVAL(req->rq_data, off_date);
- time = WVAL(req->rq_data, off_time);
- attr->f_ctime.tv_sec = date_dos2unix(server, date, time);
- attr->f_ctime.tv_nsec = 0;
-
- date = WVAL(req->rq_data, 4 + off_date);
- time = WVAL(req->rq_data, 4 + off_time);
- attr->f_atime.tv_sec = date_dos2unix(server, date, time);
- attr->f_atime.tv_nsec = 0;
-
- date = WVAL(req->rq_data, 8 + off_date);
- time = WVAL(req->rq_data, 8 + off_time);
- attr->f_mtime.tv_sec = date_dos2unix(server, date, time);
- attr->f_mtime.tv_nsec = 0;
-#ifdef SMBFS_DEBUG_TIMESTAMP
- printk(KERN_DEBUG "getattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n",
- DENTRY_PATH(dir), date, time, attr->f_mtime);
-#endif
- attr->f_size = DVAL(req->rq_data, 12);
- attr->attr = WVAL(req->rq_data, 20);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_getattr_trans2_all(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *attr)
-{
- struct smb_request *req;
- int result;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- result = smb_proc_getattr_trans2(server, dir, req,
- SMB_QUERY_FILE_ALL_INFO);
- if (result < 0)
- goto out_free;
-
- attr->f_ctime = smb_ntutc2unixutc(LVAL(req->rq_data, 0));
- attr->f_atime = smb_ntutc2unixutc(LVAL(req->rq_data, 8));
- attr->f_mtime = smb_ntutc2unixutc(LVAL(req->rq_data, 16));
- /* change (24) */
- attr->attr = WVAL(req->rq_data, 32);
- /* pad? (34) */
- /* allocated size (40) */
- attr->f_size = LVAL(req->rq_data, 48);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_getattr_unix(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *attr)
-{
- struct smb_request *req;
- int result;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- result = smb_proc_getattr_trans2(server, dir, req,
- SMB_QUERY_FILE_UNIX_BASIC);
- if (result < 0)
- goto out_free;
-
- smb_decode_unix_basic(attr, server, req->rq_data);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_getattr_95(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *attr)
-{
- struct inode *inode = dir->d_inode;
- int result;
-
- /* FIXME: why not use the "all" version? */
- result = smb_proc_getattr_trans2_std(server, dir, attr);
- if (result < 0)
- goto out;
-
- /*
- * None of the getattr versions here can make win9x return the right
- * filesize if there are changes made to an open file.
- * A seek-to-end does return the right size, but we only need to do
- * that on files we have written.
- */
- if (inode && SMB_I(inode)->flags & SMB_F_LOCALWRITE &&
- smb_is_open(inode))
- {
- __u16 fileid = SMB_I(inode)->fileid;
- attr->f_size = smb_proc_seek(server, fileid, 2, 0);
- }
-
-out:
- return result;
-}
-
-static int
-smb_proc_ops_wait(struct smb_sb_info *server)
-{
- int result;
-
- result = wait_event_interruptible_timeout(server->conn_wq,
- server->conn_complete, 30*HZ);
-
- if (!result || signal_pending(current))
- return -EIO;
-
- return 0;
-}
-
-static int
-smb_proc_getattr_null(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *fattr)
-{
- int result;
-
- if (smb_proc_ops_wait(server) < 0)
- return -EIO;
-
- smb_init_dirent(server, fattr);
- result = server->ops->getattr(server, dir, fattr);
- smb_finish_dirent(server, fattr);
-
- return result;
-}
-
-static int
-smb_proc_readdir_null(struct file *filp, void *dirent, filldir_t filldir,
- struct smb_cache_control *ctl)
-{
- struct smb_sb_info *server = server_from_dentry(filp->f_path.dentry);
-
- if (smb_proc_ops_wait(server) < 0)
- return -EIO;
-
- return server->ops->readdir(filp, dirent, filldir, ctl);
-}
-
-int
-smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr)
-{
- struct smb_sb_info *server = server_from_dentry(dir);
- int result;
-
- smb_init_dirent(server, fattr);
- result = server->ops->getattr(server, dir, fattr);
- smb_finish_dirent(server, fattr);
-
- return result;
-}
-
-
-/*
- * Because of bugs in the core protocol, we use this only to set
- * attributes. See smb_proc_settime() below for timestamp handling.
- *
- * Bugs Noted:
- * (1) If mtime is non-zero, both Win 3.1 and Win 95 fail
- * with an undocumented error (ERRDOS code 50). Setting
- * mtime to 0 allows the attributes to be set.
- * (2) The extra parameters following the name string aren't
- * in the CIFS docs, but seem to be necessary for operation.
- */
-static int
-smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
- __u16 attr)
-{
- char *p;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
-
- p = smb_setup_header(req, SMBsetatr, 8, 0);
- WSET(req->rq_header, smb_vwv0, attr);
- DSET(req->rq_header, smb_vwv1, 0); /* mtime */
- WSET(req->rq_header, smb_vwv3, 0); /* reserved values */
- WSET(req->rq_header, smb_vwv4, 0);
- WSET(req->rq_header, smb_vwv5, 0);
- WSET(req->rq_header, smb_vwv6, 0);
- WSET(req->rq_header, smb_vwv7, 0);
- result = smb_simple_encode_path(req, &p, dentry, NULL);
- if (result < 0)
- goto out_free;
- if (p + 2 > (char *)req->rq_buffer + req->rq_bufsize) {
- result = -ENAMETOOLONG;
- goto out_free;
- }
- *p++ = 4;
- *p++ = 0;
- smb_setup_bcc(req, p);
-
- result = smb_request_ok(req, SMBsetatr, 0, 0);
- if (result < 0)
- goto out_free;
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * Because of bugs in the trans2 setattr messages, we must set
- * attributes and timestamps separately. The core SMBsetatr
- * message seems to be the only reliable way to set attributes.
- */
-int
-smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr)
-{
- struct smb_sb_info *server = server_from_dentry(dir);
- int result;
-
- VERBOSE("setting %s/%s, open=%d\n",
- DENTRY_PATH(dir), smb_is_open(dir->d_inode));
- result = smb_proc_setattr_core(server, dir, fattr->attr);
- return result;
-}
-
-/*
- * Sets the timestamps for an file open with write permissions.
- */
-static int
-smb_proc_setattr_ext(struct smb_sb_info *server,
- struct inode *inode, struct smb_fattr *fattr)
-{
- __u16 date, time;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBsetattrE, 7, 0);
- WSET(req->rq_header, smb_vwv0, SMB_I(inode)->fileid);
- /* We don't change the creation time */
- WSET(req->rq_header, smb_vwv1, 0);
- WSET(req->rq_header, smb_vwv2, 0);
- date_unix2dos(server, fattr->f_atime.tv_sec, &date, &time);
- WSET(req->rq_header, smb_vwv3, date);
- WSET(req->rq_header, smb_vwv4, time);
- date_unix2dos(server, fattr->f_mtime.tv_sec, &date, &time);
- WSET(req->rq_header, smb_vwv5, date);
- WSET(req->rq_header, smb_vwv6, time);
-#ifdef SMBFS_DEBUG_TIMESTAMP
- printk(KERN_DEBUG "smb_proc_setattr_ext: date=%d, time=%d, mtime=%ld\n",
- date, time, fattr->f_mtime);
-#endif
-
- req->rq_flags |= SMB_REQ_NORETRY;
- result = smb_request_ok(req, SMBsetattrE, 0, 0);
- if (result < 0)
- goto out_free;
- result = 0;
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * Bugs Noted:
- * (1) The TRANSACT2_SETPATHINFO message under Win NT 4.0 doesn't
- * set the file's attribute flags.
- */
-static int
-smb_proc_setattr_trans2(struct smb_sb_info *server,
- struct dentry *dir, struct smb_fattr *fattr)
-{
- __u16 date, time;
- char *p, *param;
- int result;
- char data[26];
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
- param = req->rq_buffer;
-
- WSET(param, 0, 1); /* Info level SMB_INFO_STANDARD */
- DSET(param, 2, 0);
- result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
- if (result < 0)
- goto out_free;
- p = param + 6 + result;
-
- WSET(data, 0, 0); /* creation time */
- WSET(data, 2, 0);
- date_unix2dos(server, fattr->f_atime.tv_sec, &date, &time);
- WSET(data, 4, date);
- WSET(data, 6, time);
- date_unix2dos(server, fattr->f_mtime.tv_sec, &date, &time);
- WSET(data, 8, date);
- WSET(data, 10, time);
-#ifdef SMBFS_DEBUG_TIMESTAMP
- printk(KERN_DEBUG "setattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n",
- DENTRY_PATH(dir), date, time, fattr->f_mtime);
-#endif
- DSET(data, 12, 0); /* size */
- DSET(data, 16, 0); /* blksize */
- WSET(data, 20, 0); /* attr */
- DSET(data, 22, 0); /* ULONG EA size */
-
- req->rq_trans2_command = TRANSACT2_SETPATHINFO;
- req->rq_ldata = 26;
- req->rq_data = data;
- req->rq_lparm = p - param;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
- result = 0;
- if (req->rq_rcls != 0)
- result = smb_errno(req);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * ATTR_MODE 0x001
- * ATTR_UID 0x002
- * ATTR_GID 0x004
- * ATTR_SIZE 0x008
- * ATTR_ATIME 0x010
- * ATTR_MTIME 0x020
- * ATTR_CTIME 0x040
- * ATTR_ATIME_SET 0x080
- * ATTR_MTIME_SET 0x100
- * ATTR_FORCE 0x200
- * ATTR_ATTR_FLAG 0x400
- *
- * major/minor should only be set by mknod.
- */
-int
-smb_proc_setattr_unix(struct dentry *d, struct iattr *attr,
- unsigned int major, unsigned int minor)
-{
- struct smb_sb_info *server = server_from_dentry(d);
- u64 nttime;
- char *p, *param;
- int result;
- char data[100];
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
- param = req->rq_buffer;
-
- DEBUG1("valid flags = 0x%04x\n", attr->ia_valid);
-
- WSET(param, 0, SMB_SET_FILE_UNIX_BASIC);
- DSET(param, 2, 0);
- result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, d, NULL);
- if (result < 0)
- goto out_free;
- p = param + 6 + result;
-
- /* 0 L file size in bytes */
- /* 8 L file size on disk in bytes (block count) */
- /* 40 L uid */
- /* 48 L gid */
- /* 56 W file type enum */
- /* 60 L devmajor */
- /* 68 L devminor */
- /* 76 L unique ID (inode) */
- /* 84 L permissions */
- /* 92 L link count */
- LSET(data, 0, SMB_SIZE_NO_CHANGE);
- LSET(data, 8, SMB_SIZE_NO_CHANGE);
- LSET(data, 16, SMB_TIME_NO_CHANGE);
- LSET(data, 24, SMB_TIME_NO_CHANGE);
- LSET(data, 32, SMB_TIME_NO_CHANGE);
- LSET(data, 40, SMB_UID_NO_CHANGE);
- LSET(data, 48, SMB_GID_NO_CHANGE);
- DSET(data, 56, smb_filetype_from_mode(attr->ia_mode));
- LSET(data, 60, major);
- LSET(data, 68, minor);
- LSET(data, 76, 0);
- LSET(data, 84, SMB_MODE_NO_CHANGE);
- LSET(data, 92, 0);
-
- if (attr->ia_valid & ATTR_SIZE) {
- LSET(data, 0, attr->ia_size);
- LSET(data, 8, 0); /* can't set anyway */
- }
-
- /*
- * FIXME: check the conversion function it the correct one
- *
- * we can't set ctime but we might as well pass this to the server
- * and let it ignore it.
- */
- if (attr->ia_valid & ATTR_CTIME) {
- nttime = smb_unixutc2ntutc(attr->ia_ctime);
- LSET(data, 16, nttime);
- }
- if (attr->ia_valid & ATTR_ATIME) {
- nttime = smb_unixutc2ntutc(attr->ia_atime);
- LSET(data, 24, nttime);
- }
- if (attr->ia_valid & ATTR_MTIME) {
- nttime = smb_unixutc2ntutc(attr->ia_mtime);
- LSET(data, 32, nttime);
- }
-
- if (attr->ia_valid & ATTR_UID) {
- LSET(data, 40, attr->ia_uid);
- }
- if (attr->ia_valid & ATTR_GID) {
- LSET(data, 48, attr->ia_gid);
- }
-
- if (attr->ia_valid & ATTR_MODE) {
- LSET(data, 84, attr->ia_mode);
- }
-
- req->rq_trans2_command = TRANSACT2_SETPATHINFO;
- req->rq_ldata = 100;
- req->rq_data = data;
- req->rq_lparm = p - param;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-
-/*
- * Set the modify and access timestamps for a file.
- *
- * Incredibly enough, in all of SMB there is no message to allow
- * setting both attributes and timestamps at once.
- *
- * Bugs Noted:
- * (1) Win 95 doesn't support the TRANSACT2_SETFILEINFO message
- * with info level 1 (INFO_STANDARD).
- * (2) Win 95 seems not to support setting directory timestamps.
- * (3) Under the core protocol apparently the only way to set the
- * timestamp is to open and close the file.
- */
-int
-smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr)
-{
- struct smb_sb_info *server = server_from_dentry(dentry);
- struct inode *inode = dentry->d_inode;
- int result;
-
- VERBOSE("setting %s/%s, open=%d\n",
- DENTRY_PATH(dentry), smb_is_open(inode));
-
- /* setting the time on a Win95 server fails (tridge) */
- if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2 &&
- !(server->mnt->flags & SMB_MOUNT_WIN95)) {
- if (smb_is_open(inode) && SMB_I(inode)->access != SMB_O_RDONLY)
- result = smb_proc_setattr_ext(server, inode, fattr);
- else
- result = smb_proc_setattr_trans2(server, dentry, fattr);
- } else {
- /*
- * Fail silently on directories ... timestamp can't be set?
- */
- result = 0;
- if (S_ISREG(inode->i_mode)) {
- /*
- * Set the mtime by opening and closing the file.
- * Note that the file is opened read-only, but this
- * still allows us to set the date (tridge)
- */
- result = -EACCES;
- if (!smb_is_open(inode))
- smb_proc_open(server, dentry, SMB_O_RDONLY);
- if (smb_is_open(inode)) {
- inode->i_mtime = fattr->f_mtime;
- result = smb_proc_close_inode(server, inode);
- }
- }
- }
-
- return result;
-}
-
-int
-smb_proc_dskattr(struct dentry *dentry, struct kstatfs *attr)
-{
- struct smb_sb_info *server = SMB_SB(dentry->d_sb);
- int result;
- char *p;
- long unit;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 0)))
- goto out;
-
- smb_setup_header(req, SMBdskattr, 0, 0);
- if ((result = smb_request_ok(req, SMBdskattr, 5, 0)) < 0)
- goto out_free;
- p = SMB_VWV(req->rq_header);
- unit = (WVAL(p, 2) * WVAL(p, 4)) >> SMB_ST_BLKSHIFT;
- attr->f_blocks = WVAL(p, 0) * unit;
- attr->f_bsize = SMB_ST_BLKSIZE;
- attr->f_bavail = attr->f_bfree = WVAL(p, 6) * unit;
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-int
-smb_proc_read_link(struct smb_sb_info *server, struct dentry *d,
- char *buffer, int len)
-{
- char *p, *param;
- int result;
- struct smb_request *req;
-
- DEBUG1("readlink of %s/%s\n", DENTRY_PATH(d));
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
- param = req->rq_buffer;
-
- WSET(param, 0, SMB_QUERY_FILE_UNIX_LINK);
- DSET(param, 2, 0);
- result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, d, NULL);
- if (result < 0)
- goto out_free;
- p = param + 6 + result;
-
- req->rq_trans2_command = TRANSACT2_QPATHINFO;
- req->rq_ldata = 0;
- req->rq_data = NULL;
- req->rq_lparm = p - param;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
- DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
- ¶m[6], result, req->rq_rcls, req->rq_err);
-
- /* copy data up to the \0 or buffer length */
- result = len;
- if (req->rq_ldata < len)
- result = req->rq_ldata;
- strncpy(buffer, req->rq_data, result);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-
-/*
- * Create a symlink object called dentry which points to oldpath.
- * Samba does not permit dangling links but returns a suitable error message.
- */
-int
-smb_proc_symlink(struct smb_sb_info *server, struct dentry *d,
- const char *oldpath)
-{
- char *p, *param;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
- param = req->rq_buffer;
-
- WSET(param, 0, SMB_SET_FILE_UNIX_LINK);
- DSET(param, 2, 0);
- result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, d, NULL);
- if (result < 0)
- goto out_free;
- p = param + 6 + result;
-
- req->rq_trans2_command = TRANSACT2_SETPATHINFO;
- req->rq_ldata = strlen(oldpath) + 1;
- req->rq_data = (char *) oldpath;
- req->rq_lparm = p - param;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
-
- DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
- ¶m[6], result, req->rq_rcls, req->rq_err);
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-/*
- * Create a hard link object called new_dentry which points to dentry.
- */
-int
-smb_proc_link(struct smb_sb_info *server, struct dentry *dentry,
- struct dentry *new_dentry)
-{
- char *p, *param;
- int result;
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, PAGE_SIZE)))
- goto out;
- param = req->rq_buffer;
-
- WSET(param, 0, SMB_SET_FILE_UNIX_HLINK);
- DSET(param, 2, 0);
- result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1,
- new_dentry, NULL);
- if (result < 0)
- goto out_free;
- p = param + 6 + result;
-
- /* Grr, pointless separation of parameters and data ... */
- req->rq_data = p;
- req->rq_ldata = smb_encode_path(server, p, SMB_MAXPATHLEN+1,
- dentry, NULL);
-
- req->rq_trans2_command = TRANSACT2_SETPATHINFO;
- req->rq_lparm = p - param;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
-
- DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
- ¶m[6], result, req->rq_rcls, req->rq_err);
- result = 0;
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-static int
-smb_proc_query_cifsunix(struct smb_sb_info *server)
-{
- int result;
- int major, minor;
- u64 caps;
- char param[2];
- struct smb_request *req;
-
- result = -ENOMEM;
- if (! (req = smb_alloc_request(server, 100)))
- goto out;
-
- WSET(param, 0, SMB_QUERY_CIFS_UNIX_INFO);
-
- req->rq_trans2_command = TRANSACT2_QFSINFO;
- req->rq_ldata = 0;
- req->rq_data = NULL;
- req->rq_lparm = 2;
- req->rq_parm = param;
- req->rq_flags = 0;
- result = smb_add_request(req);
- if (result < 0)
- goto out_free;
-
- if (req->rq_ldata < 12) {
- PARANOIA("Not enough data\n");
- goto out_free;
- }
- major = WVAL(req->rq_data, 0);
- minor = WVAL(req->rq_data, 2);
-
- DEBUG1("Server implements CIFS Extensions for UNIX systems v%d.%d\n",
- major, minor);
- /* FIXME: verify that we are ok with this major/minor? */
-
- caps = LVAL(req->rq_data, 4);
- DEBUG1("Server capabilities 0x%016llx\n", caps);
-
-out_free:
- smb_rput(req);
-out:
- return result;
-}
-
-
-static void
-install_ops(struct smb_ops *dst, struct smb_ops *src)
-{
- memcpy(dst, src, sizeof(void *) * SMB_OPS_NUM_STATIC);
-}
-
-/* < LANMAN2 */
-static struct smb_ops smb_ops_core =
-{
- .read = smb_proc_read,
- .write = smb_proc_write,
- .readdir = smb_proc_readdir_short,
- .getattr = smb_proc_getattr_core,
- .truncate = smb_proc_trunc32,
-};
-
-/* LANMAN2, OS/2, others? */
-static struct smb_ops smb_ops_os2 =
-{
- .read = smb_proc_read,
- .write = smb_proc_write,
- .readdir = smb_proc_readdir_long,
- .getattr = smb_proc_getattr_trans2_std,
- .truncate = smb_proc_trunc32,
-};
-
-/* Win95, and possibly some NetApp versions too */
-static struct smb_ops smb_ops_win95 =
-{
- .read = smb_proc_read, /* does not support 12word readX */
- .write = smb_proc_write,
- .readdir = smb_proc_readdir_long,
- .getattr = smb_proc_getattr_95,
- .truncate = smb_proc_trunc95,
-};
-
-/* Samba, NT4 and NT5 */
-static struct smb_ops smb_ops_winNT =
-{
- .read = smb_proc_readX,
- .write = smb_proc_writeX,
- .readdir = smb_proc_readdir_long,
- .getattr = smb_proc_getattr_trans2_all,
- .truncate = smb_proc_trunc64,
-};
-
-/* Samba w/ unix extensions. Others? */
-static struct smb_ops smb_ops_unix =
-{
- .read = smb_proc_readX,
- .write = smb_proc_writeX,
- .readdir = smb_proc_readdir_long,
- .getattr = smb_proc_getattr_unix,
- /* FIXME: core/ext/time setattr needs to be cleaned up! */
- /* .setattr = smb_proc_setattr_unix, */
- .truncate = smb_proc_trunc64,
-};
-
-/* Place holder until real ops are in place */
-static struct smb_ops smb_ops_null =
-{
- .readdir = smb_proc_readdir_null,
- .getattr = smb_proc_getattr_null,
-};
-
-void smb_install_null_ops(struct smb_ops *ops)
-{
- install_ops(ops, &smb_ops_null);
-}
+++ /dev/null
-/*
- * Autogenerated with cproto on: Sat Sep 13 17:18:51 CEST 2003
- */
-
-struct smb_request;
-struct sock;
-struct statfs;
-
-/* proc.c */
-extern int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp);
-extern __u32 smb_len(__u8 *p);
-extern int smb_get_rsize(struct smb_sb_info *server);
-extern int smb_get_wsize(struct smb_sb_info *server);
-extern int smb_errno(struct smb_request *req);
-extern int smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt);
-extern __u8 *smb_setup_header(struct smb_request *req, __u8 command, __u16 wct, __u16 bcc);
-extern int smb_open(struct dentry *dentry, int wish);
-extern int smb_close(struct inode *ino);
-extern int smb_close_fileid(struct dentry *dentry, __u16 fileid);
-extern int smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid);
-extern int smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry);
-extern int smb_proc_mkdir(struct dentry *dentry);
-extern int smb_proc_rmdir(struct dentry *dentry);
-extern int smb_proc_unlink(struct dentry *dentry);
-extern int smb_proc_flush(struct smb_sb_info *server, __u16 fileid);
-extern void smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr,
- struct super_block *sb);
-extern int smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr);
-extern int smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr);
-extern int smb_proc_setattr_unix(struct dentry *d, struct iattr *attr, unsigned int major, unsigned int minor);
-extern int smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr);
-extern int smb_proc_dskattr(struct dentry *dentry, struct kstatfs *attr);
-extern int smb_proc_read_link(struct smb_sb_info *server, struct dentry *d, char *buffer, int len);
-extern int smb_proc_symlink(struct smb_sb_info *server, struct dentry *d, const char *oldpath);
-extern int smb_proc_link(struct smb_sb_info *server, struct dentry *dentry, struct dentry *new_dentry);
-extern void smb_install_null_ops(struct smb_ops *ops);
-/* dir.c */
-extern const struct file_operations smb_dir_operations;
-extern const struct inode_operations smb_dir_inode_operations;
-extern const struct inode_operations smb_dir_inode_operations_unix;
-extern void smb_new_dentry(struct dentry *dentry);
-extern void smb_renew_times(struct dentry *dentry);
-/* cache.c */
-extern void smb_invalid_dir_cache(struct inode *dir);
-extern void smb_invalidate_dircache_entries(struct dentry *parent);
-extern struct dentry *smb_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos);
-extern int smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir, struct smb_cache_control *ctrl, struct qstr *qname, struct smb_fattr *entry);
-/* sock.c */
-extern void smb_data_ready(struct sock *sk, int len);
-extern int smb_valid_socket(struct inode *inode);
-extern void smb_close_socket(struct smb_sb_info *server);
-extern int smb_recv_available(struct smb_sb_info *server);
-extern int smb_receive_header(struct smb_sb_info *server);
-extern int smb_receive_drop(struct smb_sb_info *server);
-extern int smb_receive(struct smb_sb_info *server, struct smb_request *req);
-extern int smb_send_request(struct smb_request *req);
-/* inode.c */
-extern struct inode *smb_iget(struct super_block *sb, struct smb_fattr *fattr);
-extern void smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr);
-extern void smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr);
-extern void smb_invalidate_inodes(struct smb_sb_info *server);
-extern int smb_revalidate_inode(struct dentry *dentry);
-extern int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
-extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
-/* file.c */
-extern const struct address_space_operations smb_file_aops;
-extern const struct file_operations smb_file_operations;
-extern const struct inode_operations smb_file_inode_operations;
-/* ioctl.c */
-extern long smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-/* smbiod.c */
-extern void smbiod_wake_up(void);
-extern int smbiod_register_server(struct smb_sb_info *server);
-extern void smbiod_unregister_server(struct smb_sb_info *server);
-extern void smbiod_flush(struct smb_sb_info *server);
-extern int smbiod_retry(struct smb_sb_info *server);
-/* request.c */
-extern int smb_init_request_cache(void);
-extern void smb_destroy_request_cache(void);
-extern struct smb_request *smb_alloc_request(struct smb_sb_info *server, int bufsize);
-extern void smb_rput(struct smb_request *req);
-extern int smb_add_request(struct smb_request *req);
-extern int smb_request_send_server(struct smb_sb_info *server);
-extern int smb_request_recv(struct smb_sb_info *server);
-/* symlink.c */
-extern int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname);
-extern const struct inode_operations smb_link_inode_operations;
+++ /dev/null
-/*
- * request.c
- *
- * Copyright (C) 2001 by Urban Widmark
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/net.h>
-#include <linux/sched.h>
-
-#include <linux/smb_fs.h>
-#include <linux/smbno.h>
-#include <linux/smb_mount.h>
-
-#include "smb_debug.h"
-#include "request.h"
-#include "proto.h"
-
-/* #define SMB_SLAB_DEBUG (SLAB_RED_ZONE | SLAB_POISON) */
-#define SMB_SLAB_DEBUG 0
-
-/* cache for request structures */
-static struct kmem_cache *req_cachep;
-
-static int smb_request_send_req(struct smb_request *req);
-
-/*
- /proc/slabinfo:
- name, active, num, objsize, active_slabs, num_slaps, #pages
-*/
-
-
-int smb_init_request_cache(void)
-{
- req_cachep = kmem_cache_create("smb_request",
- sizeof(struct smb_request), 0,
- SMB_SLAB_DEBUG | SLAB_HWCACHE_ALIGN,
- NULL);
- if (req_cachep == NULL)
- return -ENOMEM;
-
- return 0;
-}
-
-void smb_destroy_request_cache(void)
-{
- kmem_cache_destroy(req_cachep);
-}
-
-/*
- * Allocate and initialise a request structure
- */
-static struct smb_request *smb_do_alloc_request(struct smb_sb_info *server,
- int bufsize)
-{
- struct smb_request *req;
- unsigned char *buf = NULL;
-
- req = kmem_cache_zalloc(req_cachep, GFP_KERNEL);
- VERBOSE("allocating request: %p\n", req);
- if (!req)
- goto out;
-
- if (bufsize > 0) {
- buf = kmalloc(bufsize, GFP_NOFS);
- if (!buf) {
- kmem_cache_free(req_cachep, req);
- return NULL;
- }
- }
-
- req->rq_buffer = buf;
- req->rq_bufsize = bufsize;
- req->rq_server = server;
- init_waitqueue_head(&req->rq_wait);
- INIT_LIST_HEAD(&req->rq_queue);
- atomic_set(&req->rq_count, 1);
-
-out:
- return req;
-}
-
-struct smb_request *smb_alloc_request(struct smb_sb_info *server, int bufsize)
-{
- struct smb_request *req = NULL;
-
- for (;;) {
- atomic_inc(&server->nr_requests);
- if (atomic_read(&server->nr_requests) <= MAX_REQUEST_HARD) {
- req = smb_do_alloc_request(server, bufsize);
- if (req != NULL)
- break;
- }
-
-#if 0
- /*
- * Try to free up at least one request in order to stay
- * below the hard limit
- */
- if (nfs_try_to_free_pages(server))
- continue;
-
- if (fatal_signal_pending(current))
- return ERR_PTR(-ERESTARTSYS);
- current->policy = SCHED_YIELD;
- schedule();
-#else
- /* FIXME: we want something like nfs does above, but that
- requires changes to all callers and can wait. */
- break;
-#endif
- }
- return req;
-}
-
-static void smb_free_request(struct smb_request *req)
-{
- atomic_dec(&req->rq_server->nr_requests);
- if (req->rq_buffer && !(req->rq_flags & SMB_REQ_STATIC))
- kfree(req->rq_buffer);
- kfree(req->rq_trans2buffer);
- kmem_cache_free(req_cachep, req);
-}
-
-/*
- * What prevents a rget to race with a rput? The count must never drop to zero
- * while it is in use. Only rput if it is ok that it is free'd.
- */
-static void smb_rget(struct smb_request *req)
-{
- atomic_inc(&req->rq_count);
-}
-void smb_rput(struct smb_request *req)
-{
- if (atomic_dec_and_test(&req->rq_count)) {
- list_del_init(&req->rq_queue);
- smb_free_request(req);
- }
-}
-
-/* setup to receive the data part of the SMB */
-static int smb_setup_bcc(struct smb_request *req)
-{
- int result = 0;
- req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
-
- if (req->rq_rlen > req->rq_bufsize) {
- PARANOIA("Packet too large %d > %d\n",
- req->rq_rlen, req->rq_bufsize);
- return -ENOBUFS;
- }
-
- req->rq_iov[0].iov_base = req->rq_buffer;
- req->rq_iov[0].iov_len = req->rq_rlen;
- req->rq_iovlen = 1;
-
- return result;
-}
-
-/*
- * Prepare a "normal" request structure.
- */
-static int smb_setup_request(struct smb_request *req)
-{
- int len = smb_len(req->rq_header) + 4;
- req->rq_slen = len;
-
- /* if we expect a data part in the reply we set the iov's to read it */
- if (req->rq_resp_bcc)
- req->rq_setup_read = smb_setup_bcc;
-
- /* This tries to support re-using the same request */
- req->rq_bytes_sent = 0;
- req->rq_rcls = 0;
- req->rq_err = 0;
- req->rq_errno = 0;
- req->rq_fragment = 0;
- kfree(req->rq_trans2buffer);
- req->rq_trans2buffer = NULL;
-
- return 0;
-}
-
-/*
- * Prepare a transaction2 request structure
- */
-static int smb_setup_trans2request(struct smb_request *req)
-{
- struct smb_sb_info *server = req->rq_server;
- int mparam, mdata;
- static unsigned char padding[4];
-
- /* I know the following is very ugly, but I want to build the
- smb packet as efficiently as possible. */
-
- const int smb_parameters = 15;
- const int header = SMB_HEADER_LEN + 2 * smb_parameters + 2;
- const int oparam = ALIGN(header + 3, sizeof(u32));
- const int odata = ALIGN(oparam + req->rq_lparm, sizeof(u32));
- const int bcc = (req->rq_data ? odata + req->rq_ldata :
- oparam + req->rq_lparm) - header;
-
- if ((bcc + oparam) > server->opt.max_xmit)
- return -ENOMEM;
- smb_setup_header(req, SMBtrans2, smb_parameters, bcc);
-
- /*
- * max parameters + max data + max setup == bufsize to make NT4 happy
- * and not abort the transfer or split into multiple responses. It also
- * makes smbfs happy as handling packets larger than the buffer size
- * is extra work.
- *
- * OS/2 is probably going to hate me for this ...
- */
- mparam = SMB_TRANS2_MAX_PARAM;
- mdata = req->rq_bufsize - mparam;
-
- mdata = server->opt.max_xmit - mparam - 100;
- if (mdata < 1024) {
- mdata = 1024;
- mparam = 20;
- }
-
-#if 0
- /* NT/win2k has ~4k max_xmit, so with this we request more than it wants
- to return as one SMB. Useful for testing the fragmented trans2
- handling. */
- mdata = 8192;
-#endif
-
- WSET(req->rq_header, smb_tpscnt, req->rq_lparm);
- WSET(req->rq_header, smb_tdscnt, req->rq_ldata);
- WSET(req->rq_header, smb_mprcnt, mparam);
- WSET(req->rq_header, smb_mdrcnt, mdata);
- WSET(req->rq_header, smb_msrcnt, 0); /* max setup always 0 ? */
- WSET(req->rq_header, smb_flags, 0);
- DSET(req->rq_header, smb_timeout, 0);
- WSET(req->rq_header, smb_pscnt, req->rq_lparm);
- WSET(req->rq_header, smb_psoff, oparam - 4);
- WSET(req->rq_header, smb_dscnt, req->rq_ldata);
- WSET(req->rq_header, smb_dsoff, req->rq_data ? odata - 4 : 0);
- *(req->rq_header + smb_suwcnt) = 0x01; /* setup count */
- *(req->rq_header + smb_suwcnt + 1) = 0x00; /* reserved */
- WSET(req->rq_header, smb_setup0, req->rq_trans2_command);
-
- req->rq_iovlen = 2;
- req->rq_iov[0].iov_base = (void *) req->rq_header;
- req->rq_iov[0].iov_len = oparam;
- req->rq_iov[1].iov_base = (req->rq_parm==NULL) ? padding : req->rq_parm;
- req->rq_iov[1].iov_len = req->rq_lparm;
- req->rq_slen = oparam + req->rq_lparm;
-
- if (req->rq_data) {
- req->rq_iovlen += 2;
- req->rq_iov[2].iov_base = padding;
- req->rq_iov[2].iov_len = odata - oparam - req->rq_lparm;
- req->rq_iov[3].iov_base = req->rq_data;
- req->rq_iov[3].iov_len = req->rq_ldata;
- req->rq_slen = odata + req->rq_ldata;
- }
-
- /* always a data part for trans2 replies */
- req->rq_setup_read = smb_setup_bcc;
-
- return 0;
-}
-
-/*
- * Add a request and tell smbiod to process it
- */
-int smb_add_request(struct smb_request *req)
-{
- long timeleft;
- struct smb_sb_info *server = req->rq_server;
- int result = 0;
-
- smb_setup_request(req);
- if (req->rq_trans2_command) {
- if (req->rq_buffer == NULL) {
- PARANOIA("trans2 attempted without response buffer!\n");
- return -EIO;
- }
- result = smb_setup_trans2request(req);
- }
- if (result < 0)
- return result;
-
-#ifdef SMB_DEBUG_PACKET_SIZE
- add_xmit_stats(req);
-#endif
-
- /* add 'req' to the queue of requests */
- if (smb_lock_server_interruptible(server))
- return -EINTR;
-
- /*
- * Try to send the request as the process. If that fails we queue the
- * request and let smbiod send it later.
- */
-
- /* FIXME: each server has a number on the maximum number of parallel
- requests. 10, 50 or so. We should not allow more requests to be
- active. */
- if (server->mid > 0xf000)
- server->mid = 0;
- req->rq_mid = server->mid++;
- WSET(req->rq_header, smb_mid, req->rq_mid);
-
- result = 0;
- if (server->state == CONN_VALID) {
- if (list_empty(&server->xmitq))
- result = smb_request_send_req(req);
- if (result < 0) {
- /* Connection lost? */
- server->conn_error = result;
- server->state = CONN_INVALID;
- }
- }
- if (result != 1)
- list_add_tail(&req->rq_queue, &server->xmitq);
- smb_rget(req);
-
- if (server->state != CONN_VALID)
- smbiod_retry(server);
-
- smb_unlock_server(server);
-
- smbiod_wake_up();
-
- timeleft = wait_event_interruptible_timeout(req->rq_wait,
- req->rq_flags & SMB_REQ_RECEIVED, 30*HZ);
- if (!timeleft || signal_pending(current)) {
- /*
- * On timeout or on interrupt we want to try and remove the
- * request from the recvq/xmitq.
- * First check if the request is still part of a queue. (May
- * have been removed by some error condition)
- */
- smb_lock_server(server);
- if (!list_empty(&req->rq_queue)) {
- list_del_init(&req->rq_queue);
- smb_rput(req);
- }
- smb_unlock_server(server);
- }
-
- if (!timeleft) {
- PARANOIA("request [%p, mid=%d] timed out!\n",
- req, req->rq_mid);
- VERBOSE("smb_com: %02x\n", *(req->rq_header + smb_com));
- VERBOSE("smb_rcls: %02x\n", *(req->rq_header + smb_rcls));
- VERBOSE("smb_flg: %02x\n", *(req->rq_header + smb_flg));
- VERBOSE("smb_tid: %04x\n", WVAL(req->rq_header, smb_tid));
- VERBOSE("smb_pid: %04x\n", WVAL(req->rq_header, smb_pid));
- VERBOSE("smb_uid: %04x\n", WVAL(req->rq_header, smb_uid));
- VERBOSE("smb_mid: %04x\n", WVAL(req->rq_header, smb_mid));
- VERBOSE("smb_wct: %02x\n", *(req->rq_header + smb_wct));
-
- req->rq_rcls = ERRSRV;
- req->rq_err = ERRtimeout;
-
- /* Just in case it was "stuck" */
- smbiod_wake_up();
- }
- VERBOSE("woke up, rcls=%d\n", req->rq_rcls);
-
- if (req->rq_rcls != 0)
- req->rq_errno = smb_errno(req);
- if (signal_pending(current))
- req->rq_errno = -ERESTARTSYS;
- return req->rq_errno;
-}
-
-/*
- * Send a request and place it on the recvq if successfully sent.
- * Must be called with the server lock held.
- */
-static int smb_request_send_req(struct smb_request *req)
-{
- struct smb_sb_info *server = req->rq_server;
- int result;
-
- if (req->rq_bytes_sent == 0) {
- WSET(req->rq_header, smb_tid, server->opt.tid);
- WSET(req->rq_header, smb_pid, 1);
- WSET(req->rq_header, smb_uid, server->opt.server_uid);
- }
-
- result = smb_send_request(req);
- if (result < 0 && result != -EAGAIN)
- goto out;
-
- result = 0;
- if (!(req->rq_flags & SMB_REQ_TRANSMITTED))
- goto out;
-
- list_move_tail(&req->rq_queue, &server->recvq);
- result = 1;
-out:
- return result;
-}
-
-/*
- * Sends one request for this server. (smbiod)
- * Must be called with the server lock held.
- * Returns: <0 on error
- * 0 if no request could be completely sent
- * 1 if all data for one request was sent
- */
-int smb_request_send_server(struct smb_sb_info *server)
-{
- struct list_head *head;
- struct smb_request *req;
- int result;
-
- if (server->state != CONN_VALID)
- return 0;
-
- /* dequeue first request, if any */
- req = NULL;
- head = server->xmitq.next;
- if (head != &server->xmitq) {
- req = list_entry(head, struct smb_request, rq_queue);
- }
- if (!req)
- return 0;
-
- result = smb_request_send_req(req);
- if (result < 0) {
- server->conn_error = result;
- list_move(&req->rq_queue, &server->xmitq);
- result = -EIO;
- goto out;
- }
-
-out:
- return result;
-}
-
-/*
- * Try to find a request matching this "mid". Typically the first entry will
- * be the matching one.
- */
-static struct smb_request *find_request(struct smb_sb_info *server, int mid)
-{
- struct list_head *tmp;
- struct smb_request *req = NULL;
-
- list_for_each(tmp, &server->recvq) {
- req = list_entry(tmp, struct smb_request, rq_queue);
- if (req->rq_mid == mid) {
- break;
- }
- req = NULL;
- }
-
- if (!req) {
- VERBOSE("received reply with mid %d but no request!\n",
- WVAL(server->header, smb_mid));
- server->rstate = SMB_RECV_DROP;
- }
-
- return req;
-}
-
-/*
- * Called when we have read the smb header and believe this is a response.
- */
-static int smb_init_request(struct smb_sb_info *server, struct smb_request *req)
-{
- int hdrlen, wct;
-
- memcpy(req->rq_header, server->header, SMB_HEADER_LEN);
-
- wct = *(req->rq_header + smb_wct);
- if (wct > 20) {
- PARANOIA("wct too large, %d > 20\n", wct);
- server->rstate = SMB_RECV_DROP;
- return 0;
- }
-
- req->rq_resp_wct = wct;
- hdrlen = SMB_HEADER_LEN + wct*2 + 2;
- VERBOSE("header length: %d smb_wct: %2d\n", hdrlen, wct);
-
- req->rq_bytes_recvd = SMB_HEADER_LEN;
- req->rq_rlen = hdrlen;
- req->rq_iov[0].iov_base = req->rq_header;
- req->rq_iov[0].iov_len = hdrlen;
- req->rq_iovlen = 1;
- server->rstate = SMB_RECV_PARAM;
-
-#ifdef SMB_DEBUG_PACKET_SIZE
- add_recv_stats(smb_len(server->header));
-#endif
- return 0;
-}
-
-/*
- * Reads the SMB parameters
- */
-static int smb_recv_param(struct smb_sb_info *server, struct smb_request *req)
-{
- int result;
-
- result = smb_receive(server, req);
- if (result < 0)
- return result;
- if (req->rq_bytes_recvd < req->rq_rlen)
- return 0;
-
- VERBOSE("result: %d smb_bcc: %04x\n", result,
- WVAL(req->rq_header, SMB_HEADER_LEN +
- (*(req->rq_header + smb_wct) * 2)));
-
- result = 0;
- req->rq_iov[0].iov_base = NULL;
- req->rq_rlen = 0;
- if (req->rq_callback)
- req->rq_callback(req);
- else if (req->rq_setup_read)
- result = req->rq_setup_read(req);
- if (result < 0) {
- server->rstate = SMB_RECV_DROP;
- return result;
- }
-
- server->rstate = req->rq_rlen > 0 ? SMB_RECV_DATA : SMB_RECV_END;
-
- req->rq_bytes_recvd = 0; // recvd out of the iov
-
- VERBOSE("rlen: %d\n", req->rq_rlen);
- if (req->rq_rlen < 0) {
- PARANOIA("Parameters read beyond end of packet!\n");
- server->rstate = SMB_RECV_END;
- return -EIO;
- }
- return 0;
-}
-
-/*
- * Reads the SMB data
- */
-static int smb_recv_data(struct smb_sb_info *server, struct smb_request *req)
-{
- int result;
-
- result = smb_receive(server, req);
- if (result < 0)
- goto out;
- if (req->rq_bytes_recvd < req->rq_rlen)
- goto out;
- server->rstate = SMB_RECV_END;
-out:
- VERBOSE("result: %d\n", result);
- return result;
-}
-
-/*
- * Receive a transaction2 response
- * Return: 0 if the response has been fully read
- * 1 if there are further "fragments" to read
- * <0 if there is an error
- */
-static int smb_recv_trans2(struct smb_sb_info *server, struct smb_request *req)
-{
- unsigned char *inbuf;
- unsigned int parm_disp, parm_offset, parm_count, parm_tot;
- unsigned int data_disp, data_offset, data_count, data_tot;
- int hdrlen = SMB_HEADER_LEN + req->rq_resp_wct*2 - 2;
-
- VERBOSE("handling trans2\n");
-
- inbuf = req->rq_header;
- data_tot = WVAL(inbuf, smb_tdrcnt);
- parm_tot = WVAL(inbuf, smb_tprcnt);
- parm_disp = WVAL(inbuf, smb_prdisp);
- parm_offset = WVAL(inbuf, smb_proff);
- parm_count = WVAL(inbuf, smb_prcnt);
- data_disp = WVAL(inbuf, smb_drdisp);
- data_offset = WVAL(inbuf, smb_droff);
- data_count = WVAL(inbuf, smb_drcnt);
-
- /* Modify offset for the split header/buffer we use */
- if (data_count || data_offset) {
- if (unlikely(data_offset < hdrlen))
- goto out_bad_data;
- else
- data_offset -= hdrlen;
- }
- if (parm_count || parm_offset) {
- if (unlikely(parm_offset < hdrlen))
- goto out_bad_parm;
- else
- parm_offset -= hdrlen;
- }
-
- if (parm_count == parm_tot && data_count == data_tot) {
- /*
- * This packet has all the trans2 data.
- *
- * We setup the request so that this will be the common
- * case. It may be a server error to not return a
- * response that fits.
- */
- VERBOSE("single trans2 response "
- "dcnt=%u, pcnt=%u, doff=%u, poff=%u\n",
- data_count, parm_count,
- data_offset, parm_offset);
- req->rq_ldata = data_count;
- req->rq_lparm = parm_count;
- req->rq_data = req->rq_buffer + data_offset;
- req->rq_parm = req->rq_buffer + parm_offset;
- if (unlikely(parm_offset + parm_count > req->rq_rlen))
- goto out_bad_parm;
- if (unlikely(data_offset + data_count > req->rq_rlen))
- goto out_bad_data;
- return 0;
- }
-
- VERBOSE("multi trans2 response "
- "frag=%d, dcnt=%u, pcnt=%u, doff=%u, poff=%u\n",
- req->rq_fragment,
- data_count, parm_count,
- data_offset, parm_offset);
-
- if (!req->rq_fragment) {
- int buf_len;
-
- /* We got the first trans2 fragment */
- req->rq_fragment = 1;
- req->rq_total_data = data_tot;
- req->rq_total_parm = parm_tot;
- req->rq_ldata = 0;
- req->rq_lparm = 0;
-
- buf_len = data_tot + parm_tot;
- if (buf_len > SMB_MAX_PACKET_SIZE)
- goto out_too_long;
-
- req->rq_trans2bufsize = buf_len;
- req->rq_trans2buffer = kzalloc(buf_len, GFP_NOFS);
- if (!req->rq_trans2buffer)
- goto out_no_mem;
-
- req->rq_parm = req->rq_trans2buffer;
- req->rq_data = req->rq_trans2buffer + parm_tot;
- } else if (unlikely(req->rq_total_data < data_tot ||
- req->rq_total_parm < parm_tot))
- goto out_data_grew;
-
- if (unlikely(parm_disp + parm_count > req->rq_total_parm ||
- parm_offset + parm_count > req->rq_rlen))
- goto out_bad_parm;
- if (unlikely(data_disp + data_count > req->rq_total_data ||
- data_offset + data_count > req->rq_rlen))
- goto out_bad_data;
-
- inbuf = req->rq_buffer;
- memcpy(req->rq_parm + parm_disp, inbuf + parm_offset, parm_count);
- memcpy(req->rq_data + data_disp, inbuf + data_offset, data_count);
-
- req->rq_ldata += data_count;
- req->rq_lparm += parm_count;
-
- /*
- * Check whether we've received all of the data. Note that
- * we use the packet totals -- total lengths might shrink!
- */
- if (req->rq_ldata >= data_tot && req->rq_lparm >= parm_tot) {
- req->rq_ldata = data_tot;
- req->rq_lparm = parm_tot;
- return 0;
- }
- return 1;
-
-out_too_long:
- printk(KERN_ERR "smb_trans2: data/param too long, data=%u, parm=%u\n",
- data_tot, parm_tot);
- goto out_EIO;
-out_no_mem:
- printk(KERN_ERR "smb_trans2: couldn't allocate data area of %d bytes\n",
- req->rq_trans2bufsize);
- req->rq_errno = -ENOMEM;
- goto out;
-out_data_grew:
- printk(KERN_ERR "smb_trans2: data/params grew!\n");
- goto out_EIO;
-out_bad_parm:
- printk(KERN_ERR "smb_trans2: invalid parms, disp=%u, cnt=%u, tot=%u, ofs=%u\n",
- parm_disp, parm_count, parm_tot, parm_offset);
- goto out_EIO;
-out_bad_data:
- printk(KERN_ERR "smb_trans2: invalid data, disp=%u, cnt=%u, tot=%u, ofs=%u\n",
- data_disp, data_count, data_tot, data_offset);
-out_EIO:
- req->rq_errno = -EIO;
-out:
- return req->rq_errno;
-}
-
-/*
- * State machine for receiving responses. We handle the fact that we can't
- * read the full response in one try by having states telling us how much we
- * have read.
- *
- * Must be called with the server lock held (only called from smbiod).
- *
- * Return: <0 on error
- */
-int smb_request_recv(struct smb_sb_info *server)
-{
- struct smb_request *req = NULL;
- int result = 0;
-
- if (smb_recv_available(server) <= 0)
- return 0;
-
- VERBOSE("state: %d\n", server->rstate);
- switch (server->rstate) {
- case SMB_RECV_DROP:
- result = smb_receive_drop(server);
- if (result < 0)
- break;
- if (server->rstate == SMB_RECV_DROP)
- break;
- server->rstate = SMB_RECV_START;
- /* fallthrough */
- case SMB_RECV_START:
- server->smb_read = 0;
- server->rstate = SMB_RECV_HEADER;
- /* fallthrough */
- case SMB_RECV_HEADER:
- result = smb_receive_header(server);
- if (result < 0)
- break;
- if (server->rstate == SMB_RECV_HEADER)
- break;
- if (! (*(server->header + smb_flg) & SMB_FLAGS_REPLY) ) {
- server->rstate = SMB_RECV_REQUEST;
- break;
- }
- if (server->rstate != SMB_RECV_HCOMPLETE)
- break;
- /* fallthrough */
- case SMB_RECV_HCOMPLETE:
- req = find_request(server, WVAL(server->header, smb_mid));
- if (!req)
- break;
- smb_init_request(server, req);
- req->rq_rcls = *(req->rq_header + smb_rcls);
- req->rq_err = WVAL(req->rq_header, smb_err);
- if (server->rstate != SMB_RECV_PARAM)
- break;
- /* fallthrough */
- case SMB_RECV_PARAM:
- if (!req)
- req = find_request(server,WVAL(server->header,smb_mid));
- if (!req)
- break;
- result = smb_recv_param(server, req);
- if (result < 0)
- break;
- if (server->rstate != SMB_RECV_DATA)
- break;
- /* fallthrough */
- case SMB_RECV_DATA:
- if (!req)
- req = find_request(server,WVAL(server->header,smb_mid));
- if (!req)
- break;
- result = smb_recv_data(server, req);
- if (result < 0)
- break;
- break;
-
- /* We should never be called with any of these states */
- case SMB_RECV_END:
- case SMB_RECV_REQUEST:
- BUG();
- }
-
- if (result < 0) {
- /* We saw an error */
- return result;
- }
-
- if (server->rstate != SMB_RECV_END)
- return 0;
-
- result = 0;
- if (req->rq_trans2_command && req->rq_rcls == SUCCESS)
- result = smb_recv_trans2(server, req);
-
- /*
- * Response completely read. Drop any extra bytes sent by the server.
- * (Yes, servers sometimes add extra bytes to responses)
- */
- VERBOSE("smb_len: %d smb_read: %d\n",
- server->smb_len, server->smb_read);
- if (server->smb_read < server->smb_len)
- smb_receive_drop(server);
-
- server->rstate = SMB_RECV_START;
-
- if (!result) {
- list_del_init(&req->rq_queue);
- req->rq_flags |= SMB_REQ_RECEIVED;
- smb_rput(req);
- wake_up_interruptible(&req->rq_wait);
- }
- return 0;
-}
+++ /dev/null
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/uio.h>
-#include <linux/wait.h>
-
-struct smb_request {
- struct list_head rq_queue; /* recvq or xmitq for the server */
-
- atomic_t rq_count;
-
- wait_queue_head_t rq_wait;
- int rq_flags;
- int rq_mid; /* multiplex ID, set by request.c */
-
- struct smb_sb_info *rq_server;
-
- /* header + word count + parameter words + byte count */
- unsigned char rq_header[SMB_HEADER_LEN + 20*2 + 2];
-
- int rq_bufsize;
- unsigned char *rq_buffer;
-
- /* FIXME: this is not good enough for merging IO requests. */
- unsigned char *rq_page;
- int rq_rsize;
-
- int rq_resp_wct;
- int rq_resp_bcc;
-
- int rq_rlen;
- int rq_bytes_recvd;
-
- int rq_slen;
- int rq_bytes_sent;
-
- int rq_iovlen;
- struct kvec rq_iov[4];
-
- int (*rq_setup_read) (struct smb_request *);
- void (*rq_callback) (struct smb_request *);
-
- /* ------ trans2 stuff ------ */
-
- u16 rq_trans2_command; /* 0 if not a trans2 request */
- unsigned int rq_ldata;
- unsigned char *rq_data;
- unsigned int rq_lparm;
- unsigned char *rq_parm;
-
- int rq_fragment;
- u32 rq_total_data;
- u32 rq_total_parm;
- int rq_trans2bufsize;
- unsigned char *rq_trans2buffer;
-
- /* ------ response ------ */
-
- unsigned short rq_rcls;
- unsigned short rq_err;
- int rq_errno;
-};
-
-#define SMB_REQ_STATIC 0x0001 /* rq_buffer is static */
-#define SMB_REQ_NORETRY 0x0002 /* request is invalid after retry */
-
-#define SMB_REQ_TRANSMITTED 0x4000 /* all data has been sent */
-#define SMB_REQ_RECEIVED 0x8000 /* reply received, smbiod is done */
-
-#define xSMB_REQ_NOREPLY 0x0004 /* we don't want the reply (if any) */
-#define xSMB_REQ_NORECEIVER 0x0008 /* caller doesn't wait for response */
+++ /dev/null
-/*
- * Defines some debug macros for smbfs.
- */
-
-/* This makes a dentry parent/child name pair. Useful for debugging printk's */
-#define DENTRY_PATH(dentry) \
- (dentry)->d_parent->d_name.name,(dentry)->d_name.name
-
-/*
- * safety checks that should never happen ???
- * these are normally enabled.
- */
-#ifdef SMBFS_PARANOIA
-# define PARANOIA(f, a...) printk(KERN_NOTICE "%s: " f, __func__ , ## a)
-#else
-# define PARANOIA(f, a...) do { ; } while(0)
-#endif
-
-/* lots of debug messages */
-#ifdef SMBFS_DEBUG_VERBOSE
-# define VERBOSE(f, a...) printk(KERN_DEBUG "%s: " f, __func__ , ## a)
-#else
-# define VERBOSE(f, a...) do { ; } while(0)
-#endif
-
-/*
- * "normal" debug messages, but not with a normal DEBUG define ... way
- * too common name.
- */
-#ifdef SMBFS_DEBUG
-#define DEBUG1(f, a...) printk(KERN_DEBUG "%s: " f, __func__ , ## a)
-#else
-#define DEBUG1(f, a...) do { ; } while(0)
-#endif
+++ /dev/null
-/*
- * smbiod.c
- *
- * Copyright (C) 2000, Charles Loep / Corel Corp.
- * Copyright (C) 2001, Urban Widmark
- */
-
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/file.h>
-#include <linux/dcache.h>
-#include <linux/module.h>
-#include <linux/net.h>
-#include <linux/kthread.h>
-#include <net/ip.h>
-
-#include <linux/smb_fs.h>
-#include <linux/smbno.h>
-#include <linux/smb_mount.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include "smb_debug.h"
-#include "request.h"
-#include "proto.h"
-
-enum smbiod_state {
- SMBIOD_DEAD,
- SMBIOD_STARTING,
- SMBIOD_RUNNING,
-};
-
-static enum smbiod_state smbiod_state = SMBIOD_DEAD;
-static struct task_struct *smbiod_thread;
-static DECLARE_WAIT_QUEUE_HEAD(smbiod_wait);
-static LIST_HEAD(smb_servers);
-static DEFINE_SPINLOCK(servers_lock);
-
-#define SMBIOD_DATA_READY (1<<0)
-static unsigned long smbiod_flags;
-
-static int smbiod(void *);
-static int smbiod_start(void);
-
-/*
- * called when there's work for us to do
- */
-void smbiod_wake_up(void)
-{
- if (smbiod_state == SMBIOD_DEAD)
- return;
- set_bit(SMBIOD_DATA_READY, &smbiod_flags);
- wake_up_interruptible(&smbiod_wait);
-}
-
-/*
- * start smbiod if none is running
- */
-static int smbiod_start(void)
-{
- struct task_struct *tsk;
- int err = 0;
-
- if (smbiod_state != SMBIOD_DEAD)
- return 0;
- smbiod_state = SMBIOD_STARTING;
- __module_get(THIS_MODULE);
- spin_unlock(&servers_lock);
- tsk = kthread_run(smbiod, NULL, "smbiod");
- if (IS_ERR(tsk)) {
- err = PTR_ERR(tsk);
- module_put(THIS_MODULE);
- }
-
- spin_lock(&servers_lock);
- if (err < 0) {
- smbiod_state = SMBIOD_DEAD;
- smbiod_thread = NULL;
- } else {
- smbiod_state = SMBIOD_RUNNING;
- smbiod_thread = tsk;
- }
- return err;
-}
-
-/*
- * register a server & start smbiod if necessary
- */
-int smbiod_register_server(struct smb_sb_info *server)
-{
- int ret;
- spin_lock(&servers_lock);
- list_add(&server->entry, &smb_servers);
- VERBOSE("%p\n", server);
- ret = smbiod_start();
- spin_unlock(&servers_lock);
- return ret;
-}
-
-/*
- * Unregister a server
- * Must be called with the server lock held.
- */
-void smbiod_unregister_server(struct smb_sb_info *server)
-{
- spin_lock(&servers_lock);
- list_del_init(&server->entry);
- VERBOSE("%p\n", server);
- spin_unlock(&servers_lock);
-
- smbiod_wake_up();
- smbiod_flush(server);
-}
-
-void smbiod_flush(struct smb_sb_info *server)
-{
- struct list_head *tmp, *n;
- struct smb_request *req;
-
- list_for_each_safe(tmp, n, &server->xmitq) {
- req = list_entry(tmp, struct smb_request, rq_queue);
- req->rq_errno = -EIO;
- list_del_init(&req->rq_queue);
- smb_rput(req);
- wake_up_interruptible(&req->rq_wait);
- }
- list_for_each_safe(tmp, n, &server->recvq) {
- req = list_entry(tmp, struct smb_request, rq_queue);
- req->rq_errno = -EIO;
- list_del_init(&req->rq_queue);
- smb_rput(req);
- wake_up_interruptible(&req->rq_wait);
- }
-}
-
-/*
- * Wake up smbmount and make it reconnect to the server.
- * This must be called with the server locked.
- *
- * FIXME: add smbconnect version to this
- */
-int smbiod_retry(struct smb_sb_info *server)
-{
- struct list_head *head;
- struct smb_request *req;
- struct pid *pid = get_pid(server->conn_pid);
- int result = 0;
-
- VERBOSE("state: %d\n", server->state);
- if (server->state == CONN_VALID || server->state == CONN_RETRYING)
- goto out;
-
- smb_invalidate_inodes(server);
-
- /*
- * Some requests are meaningless after a retry, so we abort them.
- * One example are all requests using 'fileid' since the files are
- * closed on retry.
- */
- head = server->xmitq.next;
- while (head != &server->xmitq) {
- req = list_entry(head, struct smb_request, rq_queue);
- head = head->next;
-
- req->rq_bytes_sent = 0;
- if (req->rq_flags & SMB_REQ_NORETRY) {
- VERBOSE("aborting request %p on xmitq\n", req);
- req->rq_errno = -EIO;
- list_del_init(&req->rq_queue);
- smb_rput(req);
- wake_up_interruptible(&req->rq_wait);
- }
- }
-
- /*
- * FIXME: test the code for retrying request we already sent
- */
- head = server->recvq.next;
- while (head != &server->recvq) {
- req = list_entry(head, struct smb_request, rq_queue);
- head = head->next;
-#if 0
- if (req->rq_flags & SMB_REQ_RETRY) {
- /* must move the request to the xmitq */
- VERBOSE("retrying request %p on recvq\n", req);
- list_move(&req->rq_queue, &server->xmitq);
- continue;
- }
-#endif
-
- VERBOSE("aborting request %p on recvq\n", req);
- /* req->rq_rcls = ???; */ /* FIXME: set smb error code too? */
- req->rq_errno = -EIO;
- list_del_init(&req->rq_queue);
- smb_rput(req);
- wake_up_interruptible(&req->rq_wait);
- }
-
- smb_close_socket(server);
-
- if (!pid) {
- /* FIXME: this is fatal, umount? */
- printk(KERN_ERR "smb_retry: no connection process\n");
- server->state = CONN_RETRIED;
- goto out;
- }
-
- /*
- * Change state so that only one retry per server will be started.
- */
- server->state = CONN_RETRYING;
-
- /*
- * Note: use the "priv" flag, as a user process may need to reconnect.
- */
- result = kill_pid(pid, SIGUSR1, 1);
- if (result) {
- /* FIXME: this is most likely fatal, umount? */
- printk(KERN_ERR "smb_retry: signal failed [%d]\n", result);
- goto out;
- }
- VERBOSE("signalled pid %d\n", pid_nr(pid));
-
- /* FIXME: The retried requests should perhaps get a "time boost". */
-
-out:
- put_pid(pid);
- return result;
-}
-
-/*
- * Currently handles lockingX packets.
- */
-static void smbiod_handle_request(struct smb_sb_info *server)
-{
- PARANOIA("smbiod got a request ... and we don't implement oplocks!\n");
- server->rstate = SMB_RECV_DROP;
-}
-
-/*
- * Do some IO for one server.
- */
-static void smbiod_doio(struct smb_sb_info *server)
-{
- int result;
- int maxwork = 7;
-
- if (server->state != CONN_VALID)
- goto out;
-
- do {
- result = smb_request_recv(server);
- if (result < 0) {
- server->state = CONN_INVALID;
- smbiod_retry(server);
- goto out; /* reconnecting is slow */
- } else if (server->rstate == SMB_RECV_REQUEST)
- smbiod_handle_request(server);
- } while (result > 0 && maxwork-- > 0);
-
- /*
- * If there is more to read then we want to be sure to wake up again.
- */
- if (server->state != CONN_VALID)
- goto out;
- if (smb_recv_available(server) > 0)
- set_bit(SMBIOD_DATA_READY, &smbiod_flags);
-
- do {
- result = smb_request_send_server(server);
- if (result < 0) {
- server->state = CONN_INVALID;
- smbiod_retry(server);
- goto out; /* reconnecting is slow */
- }
- } while (result > 0);
-
- /*
- * If the last request was not sent out we want to wake up again.
- */
- if (!list_empty(&server->xmitq))
- set_bit(SMBIOD_DATA_READY, &smbiod_flags);
-
-out:
- return;
-}
-
-/*
- * smbiod kernel thread
- */
-static int smbiod(void *unused)
-{
- VERBOSE("SMB Kernel thread starting (%d) ...\n", current->pid);
-
- for (;;) {
- struct smb_sb_info *server;
- struct list_head *pos, *n;
-
- /* FIXME: Use poll? */
- wait_event_interruptible(smbiod_wait,
- test_bit(SMBIOD_DATA_READY, &smbiod_flags));
- if (signal_pending(current)) {
- spin_lock(&servers_lock);
- smbiod_state = SMBIOD_DEAD;
- spin_unlock(&servers_lock);
- break;
- }
-
- clear_bit(SMBIOD_DATA_READY, &smbiod_flags);
-
- spin_lock(&servers_lock);
- if (list_empty(&smb_servers)) {
- smbiod_state = SMBIOD_DEAD;
- spin_unlock(&servers_lock);
- break;
- }
-
- list_for_each_safe(pos, n, &smb_servers) {
- server = list_entry(pos, struct smb_sb_info, entry);
- VERBOSE("checking server %p\n", server);
-
- if (server->state == CONN_VALID) {
- spin_unlock(&servers_lock);
-
- smb_lock_server(server);
- smbiod_doio(server);
- smb_unlock_server(server);
-
- spin_lock(&servers_lock);
- }
- }
- spin_unlock(&servers_lock);
- }
-
- VERBOSE("SMB Kernel thread exiting (%d) ...\n", current->pid);
- module_put_and_exit(0);
-}
+++ /dev/null
-/*
- * sock.c
- *
- * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/fs.h>
-#include <linux/time.h>
-#include <linux/errno.h>
-#include <linux/socket.h>
-#include <linux/fcntl.h>
-#include <linux/file.h>
-#include <linux/in.h>
-#include <linux/net.h>
-#include <linux/mm.h>
-#include <linux/netdevice.h>
-#include <linux/workqueue.h>
-#include <net/scm.h>
-#include <net/tcp_states.h>
-#include <net/ip.h>
-
-#include <linux/smb_fs.h>
-#include <linux/smb.h>
-#include <linux/smbno.h>
-
-#include <asm/uaccess.h>
-#include <asm/ioctls.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-#include "request.h"
-
-
-static int
-_recvfrom(struct socket *socket, unsigned char *ubuf, int size, unsigned flags)
-{
- struct kvec iov = {ubuf, size};
- struct msghdr msg = {.msg_flags = flags};
- msg.msg_flags |= MSG_DONTWAIT | MSG_NOSIGNAL;
- return kernel_recvmsg(socket, &msg, &iov, 1, size, msg.msg_flags);
-}
-
-/*
- * Return the server this socket belongs to
- */
-static struct smb_sb_info *
-server_from_socket(struct socket *socket)
-{
- return socket->sk->sk_user_data;
-}
-
-/*
- * Called when there is data on the socket.
- */
-void
-smb_data_ready(struct sock *sk, int len)
-{
- struct smb_sb_info *server = server_from_socket(sk->sk_socket);
- void (*data_ready)(struct sock *, int) = server->data_ready;
-
- data_ready(sk, len);
- VERBOSE("(%p, %d)\n", sk, len);
- smbiod_wake_up();
-}
-
-int
-smb_valid_socket(struct inode * inode)
-{
- return (inode && S_ISSOCK(inode->i_mode) &&
- SOCKET_I(inode)->type == SOCK_STREAM);
-}
-
-static struct socket *
-server_sock(struct smb_sb_info *server)
-{
- struct file *file;
-
- if (server && (file = server->sock_file))
- {
-#ifdef SMBFS_PARANOIA
- if (!smb_valid_socket(file->f_path.dentry->d_inode))
- PARANOIA("bad socket!\n");
-#endif
- return SOCKET_I(file->f_path.dentry->d_inode);
- }
- return NULL;
-}
-
-void
-smb_close_socket(struct smb_sb_info *server)
-{
- struct file * file = server->sock_file;
-
- if (file) {
- struct socket *sock = server_sock(server);
-
- VERBOSE("closing socket %p\n", sock);
- sock->sk->sk_data_ready = server->data_ready;
- server->sock_file = NULL;
- fput(file);
- }
-}
-
-static int
-smb_get_length(struct socket *socket, unsigned char *header)
-{
- int result;
-
- result = _recvfrom(socket, header, 4, MSG_PEEK);
- if (result == -EAGAIN)
- return -ENODATA;
- if (result < 0) {
- PARANOIA("recv error = %d\n", -result);
- return result;
- }
- if (result < 4)
- return -ENODATA;
-
- switch (header[0]) {
- case 0x00:
- case 0x82:
- break;
-
- case 0x85:
- DEBUG1("Got SESSION KEEP ALIVE\n");
- _recvfrom(socket, header, 4, 0); /* read away */
- return -ENODATA;
-
- default:
- PARANOIA("Invalid NBT packet, code=%x\n", header[0]);
- return -EIO;
- }
-
- /* The length in the RFC NB header is the raw data length */
- return smb_len(header);
-}
-
-int
-smb_recv_available(struct smb_sb_info *server)
-{
- mm_segment_t oldfs;
- int avail, err;
- struct socket *sock = server_sock(server);
-
- oldfs = get_fs();
- set_fs(get_ds());
- err = sock->ops->ioctl(sock, SIOCINQ, (unsigned long) &avail);
- set_fs(oldfs);
- return (err >= 0) ? avail : err;
-}
-
-/*
- * Adjust the kvec to move on 'n' bytes (from nfs/sunrpc)
- */
-static int
-smb_move_iov(struct kvec **data, size_t *num, struct kvec *vec, unsigned amount)
-{
- struct kvec *iv = *data;
- int i;
- int len;
-
- /*
- * Eat any sent kvecs
- */
- while (iv->iov_len <= amount) {
- amount -= iv->iov_len;
- iv++;
- (*num)--;
- }
-
- /*
- * And chew down the partial one
- */
- vec[0].iov_len = iv->iov_len-amount;
- vec[0].iov_base =((unsigned char *)iv->iov_base)+amount;
- iv++;
-
- len = vec[0].iov_len;
-
- /*
- * And copy any others
- */
- for (i = 1; i < *num; i++) {
- vec[i] = *iv++;
- len += vec[i].iov_len;
- }
-
- *data = vec;
- return len;
-}
-
-/*
- * smb_receive_header
- * Only called by the smbiod thread.
- */
-int
-smb_receive_header(struct smb_sb_info *server)
-{
- struct socket *sock;
- int result = 0;
- unsigned char peek_buf[4];
-
- result = -EIO;
- sock = server_sock(server);
- if (!sock)
- goto out;
- if (sock->sk->sk_state != TCP_ESTABLISHED)
- goto out;
-
- if (!server->smb_read) {
- result = smb_get_length(sock, peek_buf);
- if (result < 0) {
- if (result == -ENODATA)
- result = 0;
- goto out;
- }
- server->smb_len = result + 4;
-
- if (server->smb_len < SMB_HEADER_LEN) {
- PARANOIA("short packet: %d\n", result);
- server->rstate = SMB_RECV_DROP;
- result = -EIO;
- goto out;
- }
- if (server->smb_len > SMB_MAX_PACKET_SIZE) {
- PARANOIA("long packet: %d\n", result);
- server->rstate = SMB_RECV_DROP;
- result = -EIO;
- goto out;
- }
- }
-
- result = _recvfrom(sock, server->header + server->smb_read,
- SMB_HEADER_LEN - server->smb_read, 0);
- VERBOSE("_recvfrom: %d\n", result);
- if (result < 0) {
- VERBOSE("receive error: %d\n", result);
- goto out;
- }
- server->smb_read += result;
-
- if (server->smb_read == SMB_HEADER_LEN)
- server->rstate = SMB_RECV_HCOMPLETE;
-out:
- return result;
-}
-
-static char drop_buffer[PAGE_SIZE];
-
-/*
- * smb_receive_drop - read and throw away the data
- * Only called by the smbiod thread.
- *
- * FIXME: we are in the kernel, could we just tell the socket that we want
- * to drop stuff from the buffer?
- */
-int
-smb_receive_drop(struct smb_sb_info *server)
-{
- struct socket *sock;
- unsigned int flags;
- struct kvec iov;
- struct msghdr msg;
- int rlen = smb_len(server->header) - server->smb_read + 4;
- int result = -EIO;
-
- if (rlen > PAGE_SIZE)
- rlen = PAGE_SIZE;
-
- sock = server_sock(server);
- if (!sock)
- goto out;
- if (sock->sk->sk_state != TCP_ESTABLISHED)
- goto out;
-
- flags = MSG_DONTWAIT | MSG_NOSIGNAL;
- iov.iov_base = drop_buffer;
- iov.iov_len = PAGE_SIZE;
- msg.msg_flags = flags;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = NULL;
-
- result = kernel_recvmsg(sock, &msg, &iov, 1, rlen, flags);
-
- VERBOSE("read: %d\n", result);
- if (result < 0) {
- VERBOSE("receive error: %d\n", result);
- goto out;
- }
- server->smb_read += result;
-
- if (server->smb_read >= server->smb_len)
- server->rstate = SMB_RECV_END;
-
-out:
- return result;
-}
-
-/*
- * smb_receive
- * Only called by the smbiod thread.
- */
-int
-smb_receive(struct smb_sb_info *server, struct smb_request *req)
-{
- struct socket *sock;
- unsigned int flags;
- struct kvec iov[4];
- struct kvec *p = req->rq_iov;
- size_t num = req->rq_iovlen;
- struct msghdr msg;
- int rlen;
- int result = -EIO;
-
- sock = server_sock(server);
- if (!sock)
- goto out;
- if (sock->sk->sk_state != TCP_ESTABLISHED)
- goto out;
-
- flags = MSG_DONTWAIT | MSG_NOSIGNAL;
- msg.msg_flags = flags;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = NULL;
-
- /* Dont repeat bytes and count available bufferspace */
- rlen = min_t(int, smb_move_iov(&p, &num, iov, req->rq_bytes_recvd),
- (req->rq_rlen - req->rq_bytes_recvd));
-
- result = kernel_recvmsg(sock, &msg, p, num, rlen, flags);
-
- VERBOSE("read: %d\n", result);
- if (result < 0) {
- VERBOSE("receive error: %d\n", result);
- goto out;
- }
- req->rq_bytes_recvd += result;
- server->smb_read += result;
-
-out:
- return result;
-}
-
-/*
- * Try to send a SMB request. This may return after sending only parts of the
- * request. SMB_REQ_TRANSMITTED will be set if a request was fully sent.
- *
- * Parts of this was taken from xprt_sendmsg from net/sunrpc/xprt.c
- */
-int
-smb_send_request(struct smb_request *req)
-{
- struct smb_sb_info *server = req->rq_server;
- struct socket *sock;
- struct msghdr msg = {.msg_flags = MSG_NOSIGNAL | MSG_DONTWAIT};
- int slen = req->rq_slen - req->rq_bytes_sent;
- int result = -EIO;
- struct kvec iov[4];
- struct kvec *p = req->rq_iov;
- size_t num = req->rq_iovlen;
-
- sock = server_sock(server);
- if (!sock)
- goto out;
- if (sock->sk->sk_state != TCP_ESTABLISHED)
- goto out;
-
- /* Dont repeat bytes */
- if (req->rq_bytes_sent)
- smb_move_iov(&p, &num, iov, req->rq_bytes_sent);
-
- result = kernel_sendmsg(sock, &msg, p, num, slen);
-
- if (result >= 0) {
- req->rq_bytes_sent += result;
- if (req->rq_bytes_sent >= req->rq_slen)
- req->rq_flags |= SMB_REQ_TRANSMITTED;
- }
-out:
- return result;
-}
+++ /dev/null
-/*
- * symlink.c
- *
- * Copyright (C) 2002 by John Newbigin
- *
- * Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/fcntl.h>
-#include <linux/stat.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/net.h>
-#include <linux/namei.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/smbno.h>
-#include <linux/smb_fs.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-
-int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname)
-{
- DEBUG1("create symlink %s -> %s/%s\n", oldname, DENTRY_PATH(dentry));
-
- return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
-}
-
-static void *smb_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- char *link = __getname();
- DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
-
- if (!link) {
- link = ERR_PTR(-ENOMEM);
- } else {
- int len = smb_proc_read_link(server_from_dentry(dentry),
- dentry, link, PATH_MAX - 1);
- if (len < 0) {
- __putname(link);
- link = ERR_PTR(len);
- } else {
- link[len] = 0;
- }
- }
- nd_set_link(nd, link);
- return NULL;
-}
-
-static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
-{
- char *s = nd_get_link(nd);
- if (!IS_ERR(s))
- __putname(s);
-}
-
-const struct inode_operations smb_link_inode_operations =
-{
- .readlink = generic_readlink,
- .follow_link = smb_follow_link,
- .put_link = smb_put_link,
-};
header-y += shm.h
header-y += signal.h
header-y += signalfd.h
-header-y += smb.h
-header-y += smb_fs.h
-header-y += smb_mount.h
-header-y += smbno.h
header-y += snmp.h
header-y += socket.h
header-y += sockios.h
+++ /dev/null
-/*
- * smb.h
- *
- * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- */
-
-#ifndef _LINUX_SMB_H
-#define _LINUX_SMB_H
-
-#include <linux/types.h>
-#include <linux/magic.h>
-#ifdef __KERNEL__
-#include <linux/time.h>
-#endif
-
-enum smb_protocol {
- SMB_PROTOCOL_NONE,
- SMB_PROTOCOL_CORE,
- SMB_PROTOCOL_COREPLUS,
- SMB_PROTOCOL_LANMAN1,
- SMB_PROTOCOL_LANMAN2,
- SMB_PROTOCOL_NT1
-};
-
-enum smb_case_hndl {
- SMB_CASE_DEFAULT,
- SMB_CASE_LOWER,
- SMB_CASE_UPPER
-};
-
-struct smb_dskattr {
- __u16 total;
- __u16 allocblocks;
- __u16 blocksize;
- __u16 free;
-};
-
-struct smb_conn_opt {
-
- /* The socket */
- unsigned int fd;
-
- enum smb_protocol protocol;
- enum smb_case_hndl case_handling;
-
- /* Connection-Options */
-
- __u32 max_xmit;
- __u16 server_uid;
- __u16 tid;
-
- /* The following are LANMAN 1.0 options */
- __u16 secmode;
- __u16 maxmux;
- __u16 maxvcs;
- __u16 rawmode;
- __u32 sesskey;
-
- /* The following are NT LM 0.12 options */
- __u32 maxraw;
- __u32 capabilities;
- __s16 serverzone;
-};
-
-#ifdef __KERNEL__
-
-#define SMB_NLS_MAXNAMELEN 20
-struct smb_nls_codepage {
- char local_name[SMB_NLS_MAXNAMELEN];
- char remote_name[SMB_NLS_MAXNAMELEN];
-};
-
-
-#define SMB_MAXNAMELEN 255
-#define SMB_MAXPATHLEN 1024
-
-/*
- * Contains all relevant data on a SMB networked file.
- */
-struct smb_fattr {
- __u16 attr;
-
- unsigned long f_ino;
- umode_t f_mode;
- nlink_t f_nlink;
- uid_t f_uid;
- gid_t f_gid;
- dev_t f_rdev;
- loff_t f_size;
- struct timespec f_atime;
- struct timespec f_mtime;
- struct timespec f_ctime;
- unsigned long f_blocks;
- int f_unix;
-};
-
-enum smb_conn_state {
- CONN_VALID, /* everything's fine */
- CONN_INVALID, /* Something went wrong, but did not
- try to reconnect yet. */
- CONN_RETRIED, /* Tried a reconnection, but was refused */
- CONN_RETRYING /* Currently trying to reconnect */
-};
-
-#define SMB_HEADER_LEN 37 /* includes everything up to, but not
- * including smb_bcc */
-
-#define SMB_INITIAL_PACKET_SIZE 4000
-#define SMB_MAX_PACKET_SIZE 32768
-
-/* reserve this much space for trans2 parameters. Shouldn't have to be more
- than 10 or so, but OS/2 seems happier like this. */
-#define SMB_TRANS2_MAX_PARAM 64
-
-#endif
-#endif
+++ /dev/null
-/*
- * smb_fs.h
- *
- * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- */
-
-#ifndef _LINUX_SMB_FS_H
-#define _LINUX_SMB_FS_H
-
-#include <linux/smb.h>
-
-/*
- * ioctl commands
- */
-#define SMB_IOC_GETMOUNTUID _IOR('u', 1, __kernel_old_uid_t)
-#define SMB_IOC_NEWCONN _IOW('u', 2, struct smb_conn_opt)
-
-/* __kernel_uid_t can never change, so we have to use __kernel_uid32_t */
-#define SMB_IOC_GETMOUNTUID32 _IOR('u', 3, __kernel_uid32_t)
-
-
-#ifdef __KERNEL__
-#include <linux/smb_fs_i.h>
-#include <linux/smb_fs_sb.h>
-
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include <linux/vmalloc.h>
-#include <linux/smb_mount.h>
-#include <linux/jiffies.h>
-#include <asm/unaligned.h>
-
-static inline struct smb_sb_info *SMB_SB(struct super_block *sb)
-{
- return sb->s_fs_info;
-}
-
-static inline struct smb_inode_info *SMB_I(struct inode *inode)
-{
- return container_of(inode, struct smb_inode_info, vfs_inode);
-}
-
-/* macro names are short for word, double-word, long value (?) */
-#define WVAL(buf, pos) (get_unaligned_le16((u8 *)(buf) + (pos)))
-#define DVAL(buf, pos) (get_unaligned_le32((u8 *)(buf) + (pos)))
-#define LVAL(buf, pos) (get_unaligned_le64((u8 *)(buf) + (pos)))
-
-#define WSET(buf, pos, val) put_unaligned_le16((val), (u8 *)(buf) + (pos))
-#define DSET(buf, pos, val) put_unaligned_le32((val), (u8 *)(buf) + (pos))
-#define LSET(buf, pos, val) put_unaligned_le64((val), (u8 *)(buf) + (pos))
-
-/* where to find the base of the SMB packet proper */
-#define smb_base(buf) ((u8 *)(((u8 *)(buf))+4))
-
-/*
- * Flags for the in-memory inode
- */
-#define SMB_F_LOCALWRITE 0x02 /* file modified locally */
-
-
-/* NT1 protocol capability bits */
-#define SMB_CAP_RAW_MODE 0x00000001
-#define SMB_CAP_MPX_MODE 0x00000002
-#define SMB_CAP_UNICODE 0x00000004
-#define SMB_CAP_LARGE_FILES 0x00000008
-#define SMB_CAP_NT_SMBS 0x00000010
-#define SMB_CAP_RPC_REMOTE_APIS 0x00000020
-#define SMB_CAP_STATUS32 0x00000040
-#define SMB_CAP_LEVEL_II_OPLOCKS 0x00000080
-#define SMB_CAP_LOCK_AND_READ 0x00000100
-#define SMB_CAP_NT_FIND 0x00000200
-#define SMB_CAP_DFS 0x00001000
-#define SMB_CAP_LARGE_READX 0x00004000
-#define SMB_CAP_LARGE_WRITEX 0x00008000
-#define SMB_CAP_UNIX 0x00800000 /* unofficial ... */
-
-
-/*
- * This is the time we allow an inode, dentry or dir cache to live. It is bad
- * for performance to have shorter ttl on an inode than on the cache. It can
- * cause refresh on each inode for a dir listing ... one-by-one
- */
-#define SMB_MAX_AGE(server) (((server)->mnt->ttl * HZ) / 1000)
-
-static inline void
-smb_age_dentry(struct smb_sb_info *server, struct dentry *dentry)
-{
- dentry->d_time = jiffies - SMB_MAX_AGE(server);
-}
-
-struct smb_cache_head {
- time_t mtime; /* unused */
- unsigned long time; /* cache age */
- unsigned long end; /* last valid fpos in cache */
- int eof;
-};
-
-#define SMB_DIRCACHE_SIZE ((int)(PAGE_CACHE_SIZE/sizeof(struct dentry *)))
-union smb_dir_cache {
- struct smb_cache_head head;
- struct dentry *dentry[SMB_DIRCACHE_SIZE];
-};
-
-#define SMB_FIRSTCACHE_SIZE ((int)((SMB_DIRCACHE_SIZE * \
- sizeof(struct dentry *) - sizeof(struct smb_cache_head)) / \
- sizeof(struct dentry *)))
-
-#define SMB_DIRCACHE_START (SMB_DIRCACHE_SIZE - SMB_FIRSTCACHE_SIZE)
-
-struct smb_cache_control {
- struct smb_cache_head head;
- struct page *page;
- union smb_dir_cache *cache;
- unsigned long fpos, ofs;
- int filled, valid, idx;
-};
-
-#define SMB_OPS_NUM_STATIC 5
-struct smb_ops {
- int (*read)(struct inode *inode, loff_t offset, int count,
- char *data);
- int (*write)(struct inode *inode, loff_t offset, int count, const
- char *data);
- int (*readdir)(struct file *filp, void *dirent, filldir_t filldir,
- struct smb_cache_control *ctl);
-
- int (*getattr)(struct smb_sb_info *server, struct dentry *dir,
- struct smb_fattr *fattr);
- /* int (*setattr)(...); */ /* setattr is really icky! */
-
- int (*truncate)(struct inode *inode, loff_t length);
-
-
- /* --- --- --- end of "static" entries --- --- --- */
-
- int (*convert)(unsigned char *output, int olen,
- const unsigned char *input, int ilen,
- struct nls_table *nls_from,
- struct nls_table *nls_to);
-};
-
-static inline int
-smb_is_open(struct inode *i)
-{
- return (SMB_I(i)->open == server_from_inode(i)->generation);
-}
-
-extern void smb_install_null_ops(struct smb_ops *);
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_SMB_FS_H */
+++ /dev/null
-/*
- * smb_fs_i.h
- *
- * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- */
-
-#ifndef _LINUX_SMB_FS_I
-#define _LINUX_SMB_FS_I
-
-#include <linux/types.h>
-#include <linux/fs.h>
-
-/*
- * smb fs inode data (in memory only)
- */
-struct smb_inode_info {
-
- /*
- * file handles are local to a connection. A file is open if
- * (open == generation).
- */
- unsigned int open; /* open generation */
- __u16 fileid; /* What id to handle a file with? */
- __u16 attr; /* Attribute fields, DOS value */
-
- __u16 access; /* Access mode */
- __u16 flags;
- unsigned long oldmtime; /* last time refreshed */
- unsigned long closed; /* timestamp when closed */
- unsigned openers; /* number of fileid users */
-
- struct inode vfs_inode; /* must be at the end */
-};
-
-#endif
+++ /dev/null
-/*
- * smb_fs_sb.h
- *
- * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- */
-
-#ifndef _SMB_FS_SB
-#define _SMB_FS_SB
-
-#include <linux/types.h>
-#include <linux/backing-dev.h>
-#include <linux/smb.h>
-
-/*
- * Upper limit on the total number of active smb_request structs.
- */
-#define MAX_REQUEST_HARD 256
-
-enum smb_receive_state {
- SMB_RECV_START, /* No data read, looking for length + sig */
- SMB_RECV_HEADER, /* Reading the header data */
- SMB_RECV_HCOMPLETE, /* Done with the header */
- SMB_RECV_PARAM, /* Reading parameter words */
- SMB_RECV_DATA, /* Reading data bytes */
- SMB_RECV_END, /* End of request */
- SMB_RECV_DROP, /* Dropping this SMB */
- SMB_RECV_REQUEST, /* Received a request and not a reply */
-};
-
-/* structure access macros */
-#define server_from_inode(inode) SMB_SB((inode)->i_sb)
-#define server_from_dentry(dentry) SMB_SB((dentry)->d_sb)
-#define SB_of(server) ((server)->super_block)
-
-struct smb_sb_info {
- /* List of all smbfs superblocks */
- struct list_head entry;
-
- enum smb_conn_state state;
- struct file * sock_file;
- int conn_error;
- enum smb_receive_state rstate;
-
- atomic_t nr_requests;
- struct list_head xmitq;
- struct list_head recvq;
- u16 mid;
-
- struct smb_mount_data_kernel *mnt;
-
- /* Connections are counted. Each time a new socket arrives,
- * generation is incremented.
- */
- unsigned int generation;
- struct pid *conn_pid;
- struct smb_conn_opt opt;
- wait_queue_head_t conn_wq;
- int conn_complete;
- struct semaphore sem;
-
- unsigned char header[SMB_HEADER_LEN + 20*2 + 2];
- u32 header_len;
- u32 smb_len;
- u32 smb_read;
-
- /* We use our own data_ready callback, but need the original one */
- void *data_ready;
-
- /* nls pointers for codepage conversions */
- struct nls_table *remote_nls;
- struct nls_table *local_nls;
-
- struct smb_ops *ops;
-
- struct super_block *super_block;
-
- struct backing_dev_info bdi;
-};
-
-static inline int
-smb_lock_server_interruptible(struct smb_sb_info *server)
-{
- return down_interruptible(&(server->sem));
-}
-
-static inline void
-smb_lock_server(struct smb_sb_info *server)
-{
- down(&(server->sem));
-}
-
-static inline void
-smb_unlock_server(struct smb_sb_info *server)
-{
- up(&(server->sem));
-}
-
-#endif
+++ /dev/null
-/*
- * smb_mount.h
- *
- * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- * Copyright (C) 1997 by Volker Lendecke
- *
- */
-
-#ifndef _LINUX_SMB_MOUNT_H
-#define _LINUX_SMB_MOUNT_H
-
-#include <linux/types.h>
-
-#define SMB_MOUNT_VERSION 6
-
-struct smb_mount_data {
- int version;
- __kernel_uid_t mounted_uid; /* Who may umount() this filesystem? */
- __kernel_uid_t uid;
- __kernel_gid_t gid;
- __kernel_mode_t file_mode;
- __kernel_mode_t dir_mode;
-};
-
-
-#ifdef __KERNEL__
-
-/* "vers" in big-endian */
-#define SMB_MOUNT_ASCII 0x76657273
-
-#define SMB_MOUNT_OLDVERSION 6
-#undef SMB_MOUNT_VERSION
-#define SMB_MOUNT_VERSION 7
-
-/* flags */
-#define SMB_MOUNT_WIN95 0x0001 /* Win 95 server */
-#define SMB_MOUNT_OLDATTR 0x0002 /* Use core getattr (Win 95 speedup) */
-#define SMB_MOUNT_DIRATTR 0x0004 /* Use find_first for getattr */
-#define SMB_MOUNT_CASE 0x0008 /* Be case sensitive */
-#define SMB_MOUNT_UNICODE 0x0010 /* Server talks unicode */
-#define SMB_MOUNT_UID 0x0020 /* Use user specified uid */
-#define SMB_MOUNT_GID 0x0040 /* Use user specified gid */
-#define SMB_MOUNT_FMODE 0x0080 /* Use user specified file mode */
-#define SMB_MOUNT_DMODE 0x0100 /* Use user specified dir mode */
-
-struct smb_mount_data_kernel {
- int version;
-
- uid_t mounted_uid; /* Who may umount() this filesystem? */
- uid_t uid;
- gid_t gid;
- mode_t file_mode;
- mode_t dir_mode;
-
- u32 flags;
-
- /* maximum age in jiffies (inode, dentry and dircache) */
- int ttl;
-
- struct smb_nls_codepage codepage;
-};
-
-#endif
-
-#endif
+++ /dev/null
-#ifndef _SMBNO_H_
-#define _SMBNO_H_
-
-/* these define the attribute byte as seen by DOS */
-#define aRONLY (1L<<0)
-#define aHIDDEN (1L<<1)
-#define aSYSTEM (1L<<2)
-#define aVOLID (1L<<3)
-#define aDIR (1L<<4)
-#define aARCH (1L<<5)
-
-/* error classes */
-#define SUCCESS 0 /* The request was successful. */
-#define ERRDOS 0x01 /* Error is from the core DOS operating system set. */
-#define ERRSRV 0x02 /* Error is generated by the server network file manager.*/
-#define ERRHRD 0x03 /* Error is an hardware error. */
-#define ERRCMD 0xFF /* Command was not in the "SMB" format. */
-
-/* SMB X/Open error codes for the ERRdos error class */
-
-#define ERRbadfunc 1 /* Invalid function (or system call) */
-#define ERRbadfile 2 /* File not found (pathname error) */
-#define ERRbadpath 3 /* Directory not found */
-#define ERRnofids 4 /* Too many open files */
-#define ERRnoaccess 5 /* Access denied */
-#define ERRbadfid 6 /* Invalid fid */
-#define ERRbadmcb 7 /* Memory control blocks destroyed */
-#define ERRnomem 8 /* Out of memory */
-#define ERRbadmem 9 /* Invalid memory block address */
-#define ERRbadenv 10 /* Invalid environment */
-#define ERRbadformat 11 /* Invalid format */
-#define ERRbadaccess 12 /* Invalid open mode */
-#define ERRbaddata 13 /* Invalid data (only from ioctl call) */
-#define ERRres 14 /* reserved */
-#define ERRbaddrive 15 /* Invalid drive */
-#define ERRremcd 16 /* Attempt to delete current directory */
-#define ERRdiffdevice 17 /* rename/move across different filesystems */
-#define ERRnofiles 18 /* no more files found in file search */
-#define ERRbadshare 32 /* Share mode on file conflict with open mode */
-#define ERRlock 33 /* Lock request conflicts with existing lock */
-#define ERRfilexists 80 /* File in operation already exists */
-#define ERRbadpipe 230 /* Named pipe invalid */
-#define ERRpipebusy 231 /* All instances of pipe are busy */
-#define ERRpipeclosing 232 /* named pipe close in progress */
-#define ERRnotconnected 233 /* No process on other end of named pipe */
-#define ERRmoredata 234 /* More data to be returned */
-
-#define ERROR_INVALID_PARAMETER 87
-#define ERROR_DISK_FULL 112
-#define ERROR_INVALID_NAME 123
-#define ERROR_DIR_NOT_EMPTY 145
-#define ERROR_NOT_LOCKED 158
-#define ERROR_ALREADY_EXISTS 183 /* see also 80 ? */
-#define ERROR_EAS_DIDNT_FIT 275 /* Extended attributes didn't fit */
-#define ERROR_EAS_NOT_SUPPORTED 282 /* Extended attributes not supported */
-
-/* Error codes for the ERRSRV class */
-
-#define ERRerror 1 /* Non specific error code */
-#define ERRbadpw 2 /* Bad password */
-#define ERRbadtype 3 /* reserved */
-#define ERRaccess 4 /* No permissions to do the requested operation */
-#define ERRinvnid 5 /* tid invalid */
-#define ERRinvnetname 6 /* Invalid servername */
-#define ERRinvdevice 7 /* Invalid device */
-#define ERRqfull 49 /* Print queue full */
-#define ERRqtoobig 50 /* Queued item too big */
-#define ERRinvpfid 52 /* Invalid print file in smb_fid */
-#define ERRsmbcmd 64 /* Unrecognised command */
-#define ERRsrverror 65 /* smb server internal error */
-#define ERRfilespecs 67 /* fid and pathname invalid combination */
-#define ERRbadlink 68 /* reserved */
-#define ERRbadpermits 69 /* Access specified for a file is not valid */
-#define ERRbadpid 70 /* reserved */
-#define ERRsetattrmode 71 /* attribute mode invalid */
-#define ERRpaused 81 /* Message server paused */
-#define ERRmsgoff 82 /* Not receiving messages */
-#define ERRnoroom 83 /* No room for message */
-#define ERRrmuns 87 /* too many remote usernames */
-#define ERRtimeout 88 /* operation timed out */
-#define ERRnoresource 89 /* No resources currently available for request. */
-#define ERRtoomanyuids 90 /* too many userids */
-#define ERRbaduid 91 /* bad userid */
-#define ERRuseMPX 250 /* temporarily unable to use raw mode, use MPX mode */
-#define ERRuseSTD 251 /* temporarily unable to use raw mode, use std.mode */
-#define ERRcontMPX 252 /* resume MPX mode */
-#define ERRbadPW /* reserved */
-#define ERRnosupport 0xFFFF
-
-/* Error codes for the ERRHRD class */
-
-#define ERRnowrite 19 /* read only media */
-#define ERRbadunit 20 /* Unknown device */
-#define ERRnotready 21 /* Drive not ready */
-#define ERRbadcmd 22 /* Unknown command */
-#define ERRdata 23 /* Data (CRC) error */
-#define ERRbadreq 24 /* Bad request structure length */
-#define ERRseek 25
-#define ERRbadmedia 26
-#define ERRbadsector 27
-#define ERRnopaper 28
-#define ERRwrite 29 /* write fault */
-#define ERRread 30 /* read fault */
-#define ERRgeneral 31 /* General hardware failure */
-#define ERRwrongdisk 34
-#define ERRFCBunavail 35
-#define ERRsharebufexc 36 /* share buffer exceeded */
-#define ERRdiskfull 39
-
-/*
- * Access modes when opening a file
- */
-#define SMB_ACCMASK 0x0003
-#define SMB_O_RDONLY 0x0000
-#define SMB_O_WRONLY 0x0001
-#define SMB_O_RDWR 0x0002
-
-/* offsets into message for common items */
-#define smb_com 8
-#define smb_rcls 9
-#define smb_reh 10
-#define smb_err 11
-#define smb_flg 13
-#define smb_flg2 14
-#define smb_reb 13
-#define smb_tid 28
-#define smb_pid 30
-#define smb_uid 32
-#define smb_mid 34
-#define smb_wct 36
-#define smb_vwv 37
-#define smb_vwv0 37
-#define smb_vwv1 39
-#define smb_vwv2 41
-#define smb_vwv3 43
-#define smb_vwv4 45
-#define smb_vwv5 47
-#define smb_vwv6 49
-#define smb_vwv7 51
-#define smb_vwv8 53
-#define smb_vwv9 55
-#define smb_vwv10 57
-#define smb_vwv11 59
-#define smb_vwv12 61
-#define smb_vwv13 63
-#define smb_vwv14 65
-
-/* these are the trans2 sub fields for primary requests */
-#define smb_tpscnt smb_vwv0
-#define smb_tdscnt smb_vwv1
-#define smb_mprcnt smb_vwv2
-#define smb_mdrcnt smb_vwv3
-#define smb_msrcnt smb_vwv4
-#define smb_flags smb_vwv5
-#define smb_timeout smb_vwv6
-#define smb_pscnt smb_vwv9
-#define smb_psoff smb_vwv10
-#define smb_dscnt smb_vwv11
-#define smb_dsoff smb_vwv12
-#define smb_suwcnt smb_vwv13
-#define smb_setup smb_vwv14
-#define smb_setup0 smb_setup
-#define smb_setup1 (smb_setup+2)
-#define smb_setup2 (smb_setup+4)
-
-/* these are for the secondary requests */
-#define smb_spscnt smb_vwv2
-#define smb_spsoff smb_vwv3
-#define smb_spsdisp smb_vwv4
-#define smb_sdscnt smb_vwv5
-#define smb_sdsoff smb_vwv6
-#define smb_sdsdisp smb_vwv7
-#define smb_sfid smb_vwv8
-
-/* and these for responses */
-#define smb_tprcnt smb_vwv0
-#define smb_tdrcnt smb_vwv1
-#define smb_prcnt smb_vwv3
-#define smb_proff smb_vwv4
-#define smb_prdisp smb_vwv5
-#define smb_drcnt smb_vwv6
-#define smb_droff smb_vwv7
-#define smb_drdisp smb_vwv8
-
-/* the complete */
-#define SMBmkdir 0x00 /* create directory */
-#define SMBrmdir 0x01 /* delete directory */
-#define SMBopen 0x02 /* open file */
-#define SMBcreate 0x03 /* create file */
-#define SMBclose 0x04 /* close file */
-#define SMBflush 0x05 /* flush file */
-#define SMBunlink 0x06 /* delete file */
-#define SMBmv 0x07 /* rename file */
-#define SMBgetatr 0x08 /* get file attributes */
-#define SMBsetatr 0x09 /* set file attributes */
-#define SMBread 0x0A /* read from file */
-#define SMBwrite 0x0B /* write to file */
-#define SMBlock 0x0C /* lock byte range */
-#define SMBunlock 0x0D /* unlock byte range */
-#define SMBctemp 0x0E /* create temporary file */
-#define SMBmknew 0x0F /* make new file */
-#define SMBchkpth 0x10 /* check directory path */
-#define SMBexit 0x11 /* process exit */
-#define SMBlseek 0x12 /* seek */
-#define SMBtcon 0x70 /* tree connect */
-#define SMBtconX 0x75 /* tree connect and X*/
-#define SMBtdis 0x71 /* tree disconnect */
-#define SMBnegprot 0x72 /* negotiate protocol */
-#define SMBdskattr 0x80 /* get disk attributes */
-#define SMBsearch 0x81 /* search directory */
-#define SMBsplopen 0xC0 /* open print spool file */
-#define SMBsplwr 0xC1 /* write to print spool file */
-#define SMBsplclose 0xC2 /* close print spool file */
-#define SMBsplretq 0xC3 /* return print queue */
-#define SMBsends 0xD0 /* send single block message */
-#define SMBsendb 0xD1 /* send broadcast message */
-#define SMBfwdname 0xD2 /* forward user name */
-#define SMBcancelf 0xD3 /* cancel forward */
-#define SMBgetmac 0xD4 /* get machine name */
-#define SMBsendstrt 0xD5 /* send start of multi-block message */
-#define SMBsendend 0xD6 /* send end of multi-block message */
-#define SMBsendtxt 0xD7 /* send text of multi-block message */
-
-/* Core+ protocol */
-#define SMBlockread 0x13 /* Lock a range and read */
-#define SMBwriteunlock 0x14 /* Unlock a range then write */
-#define SMBreadbraw 0x1a /* read a block of data with no smb header */
-#define SMBwritebraw 0x1d /* write a block of data with no smb header */
-#define SMBwritec 0x20 /* secondary write request */
-#define SMBwriteclose 0x2c /* write a file then close it */
-
-/* dos extended protocol */
-#define SMBreadBraw 0x1A /* read block raw */
-#define SMBreadBmpx 0x1B /* read block multiplexed */
-#define SMBreadBs 0x1C /* read block (secondary response) */
-#define SMBwriteBraw 0x1D /* write block raw */
-#define SMBwriteBmpx 0x1E /* write block multiplexed */
-#define SMBwriteBs 0x1F /* write block (secondary request) */
-#define SMBwriteC 0x20 /* write complete response */
-#define SMBsetattrE 0x22 /* set file attributes expanded */
-#define SMBgetattrE 0x23 /* get file attributes expanded */
-#define SMBlockingX 0x24 /* lock/unlock byte ranges and X */
-#define SMBtrans 0x25 /* transaction - name, bytes in/out */
-#define SMBtranss 0x26 /* transaction (secondary request/response) */
-#define SMBioctl 0x27 /* IOCTL */
-#define SMBioctls 0x28 /* IOCTL (secondary request/response) */
-#define SMBcopy 0x29 /* copy */
-#define SMBmove 0x2A /* move */
-#define SMBecho 0x2B /* echo */
-#define SMBopenX 0x2D /* open and X */
-#define SMBreadX 0x2E /* read and X */
-#define SMBwriteX 0x2F /* write and X */
-#define SMBsesssetupX 0x73 /* Session Set Up & X (including User Logon) */
-#define SMBtconX 0x75 /* tree connect and X */
-#define SMBffirst 0x82 /* find first */
-#define SMBfunique 0x83 /* find unique */
-#define SMBfclose 0x84 /* find close */
-#define SMBinvalid 0xFE /* invalid command */
-
-
-/* Extended 2.0 protocol */
-#define SMBtrans2 0x32 /* TRANS2 protocol set */
-#define SMBtranss2 0x33 /* TRANS2 protocol set, secondary command */
-#define SMBfindclose 0x34 /* Terminate a TRANSACT2_FINDFIRST */
-#define SMBfindnclose 0x35 /* Terminate a TRANSACT2_FINDNOTIFYFIRST */
-#define SMBulogoffX 0x74 /* user logoff */
-
-/* these are the TRANS2 sub commands */
-#define TRANSACT2_OPEN 0
-#define TRANSACT2_FINDFIRST 1
-#define TRANSACT2_FINDNEXT 2
-#define TRANSACT2_QFSINFO 3
-#define TRANSACT2_SETFSINFO 4
-#define TRANSACT2_QPATHINFO 5
-#define TRANSACT2_SETPATHINFO 6
-#define TRANSACT2_QFILEINFO 7
-#define TRANSACT2_SETFILEINFO 8
-#define TRANSACT2_FSCTL 9
-#define TRANSACT2_IOCTL 10
-#define TRANSACT2_FINDNOTIFYFIRST 11
-#define TRANSACT2_FINDNOTIFYNEXT 12
-#define TRANSACT2_MKDIR 13
-
-/* Information Levels - Shared? */
-#define SMB_INFO_STANDARD 1
-#define SMB_INFO_QUERY_EA_SIZE 2
-#define SMB_INFO_QUERY_EAS_FROM_LIST 3
-#define SMB_INFO_QUERY_ALL_EAS 4
-#define SMB_INFO_IS_NAME_VALID 6
-
-/* Information Levels - TRANSACT2_FINDFIRST */
-#define SMB_FIND_FILE_DIRECTORY_INFO 0x101
-#define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
-#define SMB_FIND_FILE_NAMES_INFO 0x103
-#define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
-
-/* Information Levels - TRANSACT2_QPATHINFO */
-#define SMB_QUERY_FILE_BASIC_INFO 0x101
-#define SMB_QUERY_FILE_STANDARD_INFO 0x102
-#define SMB_QUERY_FILE_EA_INFO 0x103
-#define SMB_QUERY_FILE_NAME_INFO 0x104
-#define SMB_QUERY_FILE_ALL_INFO 0x107
-#define SMB_QUERY_FILE_ALT_NAME_INFO 0x108
-#define SMB_QUERY_FILE_STREAM_INFO 0x109
-#define SMB_QUERY_FILE_COMPRESSION_INFO 0x10b
-
-/* Information Levels - TRANSACT2_SETFILEINFO */
-#define SMB_SET_FILE_BASIC_INFO 0x101
-#define SMB_SET_FILE_DISPOSITION_INFO 0x102
-#define SMB_SET_FILE_ALLOCATION_INFO 0x103
-#define SMB_SET_FILE_END_OF_FILE_INFO 0x104
-
-/* smb_flg field flags */
-#define SMB_FLAGS_SUPPORT_LOCKREAD 0x01
-#define SMB_FLAGS_CLIENT_BUF_AVAIL 0x02
-#define SMB_FLAGS_RESERVED 0x04
-#define SMB_FLAGS_CASELESS_PATHNAMES 0x08
-#define SMB_FLAGS_CANONICAL_PATHNAMES 0x10
-#define SMB_FLAGS_REQUEST_OPLOCK 0x20
-#define SMB_FLAGS_REQUEST_BATCH_OPLOCK 0x40
-#define SMB_FLAGS_REPLY 0x80
-
-/* smb_flg2 field flags (samba-2.2.0/source/include/smb.h) */
-#define SMB_FLAGS2_LONG_PATH_COMPONENTS 0x0001
-#define SMB_FLAGS2_EXTENDED_ATTRIBUTES 0x0002
-#define SMB_FLAGS2_DFS_PATHNAMES 0x1000
-#define SMB_FLAGS2_READ_PERMIT_NO_EXECUTE 0x2000
-#define SMB_FLAGS2_32_BIT_ERROR_CODES 0x4000
-#define SMB_FLAGS2_UNICODE_STRINGS 0x8000
-
-
-/*
- * UNIX stuff (from samba trans2.h)
- */
-#define MIN_UNIX_INFO_LEVEL 0x200
-#define MAX_UNIX_INFO_LEVEL 0x2FF
-#define SMB_FIND_FILE_UNIX 0x202
-#define SMB_QUERY_FILE_UNIX_BASIC 0x200
-#define SMB_QUERY_FILE_UNIX_LINK 0x201
-#define SMB_QUERY_FILE_UNIX_HLINK 0x202
-#define SMB_SET_FILE_UNIX_BASIC 0x200
-#define SMB_SET_FILE_UNIX_LINK 0x201
-#define SMB_SET_FILE_UNIX_HLINK 0x203
-#define SMB_QUERY_CIFS_UNIX_INFO 0x200
-
-/* values which means "don't change it" */
-#define SMB_MODE_NO_CHANGE 0xFFFFFFFF
-#define SMB_UID_NO_CHANGE 0xFFFFFFFF
-#define SMB_GID_NO_CHANGE 0xFFFFFFFF
-#define SMB_TIME_NO_CHANGE 0xFFFFFFFFFFFFFFFFULL
-#define SMB_SIZE_NO_CHANGE 0xFFFFFFFFFFFFFFFFULL
-
-/* UNIX filetype mappings. */
-#define UNIX_TYPE_FILE 0
-#define UNIX_TYPE_DIR 1
-#define UNIX_TYPE_SYMLINK 2
-#define UNIX_TYPE_CHARDEV 3
-#define UNIX_TYPE_BLKDEV 4
-#define UNIX_TYPE_FIFO 5
-#define UNIX_TYPE_SOCKET 6
-#define UNIX_TYPE_UNKNOWN 0xFFFFFFFF
-
-#endif /* _SMBNO_H_ */
projects / openwrt / staging / blogic.git / commitdiff