From 23cfcee20f43d824d61fadef48af84a83d5b8816 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 9 Sep 2011 21:30:59 +0200 Subject: [PATCH] add work in progress code for enumerating shell protocol handlers --- CMakeLists.txt | 15 +++++- proto-shell.c | 118 ++++++++++++++++++++++++++++++++++++++++++ proto/netifd-proto.sh | 44 ++++++++++++++++ proto/ppp.sh | 25 +++++++++ 4 files changed, 200 insertions(+), 2 deletions(-) create mode 100644 proto-shell.c create mode 100755 proto/netifd-proto.sh create mode 100755 proto/ppp.sh diff --git a/CMakeLists.txt b/CMakeLists.txt index c06733e..43ced00 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -5,9 +5,20 @@ ADD_DEFINITIONS(-Os -Wall -Werror --std=gnu99 -g3) SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "") +IF(APPLE) + INCLUDE_DIRECTORIES(/opt/local/include) + LINK_DIRECTORIES(/opt/local/lib) +ENDIF() + IF(DEBUG) ADD_DEFINITIONS(-DDEBUG -O0) ENDIF() -ADD_EXECUTABLE(netifd main.c utils.c interface.c interface-ip.c proto.c proto-static.c config.c device.c bridge.c vlan.c ubus.c system-dummy.c) -TARGET_LINK_LIBRARIES(netifd ubox ubus uci) + +ADD_EXECUTABLE(netifd + main.c utils.c interface.c interface-ip.c + proto.c proto-static.c proto-shell.c + config.c device.c bridge.c vlan.c ubus.c + system-dummy.c) + +TARGET_LINK_LIBRARIES(netifd ubox ubus uci json) diff --git a/proto-shell.c b/proto-shell.c new file mode 100644 index 0000000..2b68c35 --- /dev/null +++ b/proto-shell.c @@ -0,0 +1,118 @@ +#include +#include +#include +#include +#include +#include + +#include + +#include "netifd.h" +#include "interface.h" +#include "interface-ip.h" +#include "proto.h" + +static LIST_HEAD(handlers); +static int proto_fd, main_fd; + +struct proto_shell_handler { + struct list_head list; + struct proto_handler proto; +}; + +#define DUMP_PREFIX "./" +#define DUMP_SUFFIX " dump" + +static void proto_shell_add_handler(const char *script, struct json_object *obj) +{ + if (json_object_get_type(obj) != json_type_object) + return; + + fprintf(stderr, "Add handler for script %s: %s\n", script, json_object_to_json_string(obj)); +} + +static void proto_shell_add_script(const char *name) +{ + struct json_tokener *tok = NULL; + struct json_object *obj; + static char buf[512]; + char *start, *end, *cmd; + FILE *f; + int buflen, len; + + cmd = alloca(strlen(name) + 1 + sizeof(DUMP_PREFIX) + sizeof(DUMP_SUFFIX)); + sprintf(cmd, DUMP_PREFIX "%s" DUMP_SUFFIX, name); + + f = popen(cmd, "r"); + if (!f) + return; + + do { + buflen = fread(buf, 1, sizeof(buf) - 1, f); + if (buflen <= 0) + continue; + + start = buf; + len = buflen; + do { + end = memchr(start, '\n', len); + if (end) + len = end - start; + + if (!tok) + tok = json_tokener_new(); + + obj = json_tokener_parse_ex(tok, start, len); + if (!is_error(obj)) { + proto_shell_add_handler(name, obj); + json_object_put(obj); + json_tokener_free(tok); + tok = NULL; + } + + if (end) { + start = end + 1; + len = buflen - (start - buf); + } + } while (len > 0); + } while (!feof(f) && !ferror(f)); + + if (tok) + json_tokener_free(tok); + + pclose(f); +} + +void __init proto_shell_init(void) +{ + glob_t g; + int i; + + main_fd = open(".", O_RDONLY | O_DIRECTORY); + if (main_fd < 0) + return; + + if (chdir(main_path)) { + perror("chdir(main path)"); + goto close_cur; + } + + if (chdir("./proto")) + goto close_cur; + + proto_fd = open(".", O_RDONLY | O_DIRECTORY); + if (proto_fd < 0) + goto close_cur; + + glob("*.sh", 0, NULL, &g); + for (i = 0; i < g.gl_pathc; i++) + proto_shell_add_script(g.gl_pathv[i]); + + if (list_empty(&handlers)) + close(proto_fd); + +close_cur: + fchdir(main_fd); + if (list_empty(&handlers)) + close(main_fd); +} diff --git a/proto/netifd-proto.sh b/proto/netifd-proto.sh new file mode 100755 index 0000000..f850216 --- /dev/null +++ b/proto/netifd-proto.sh @@ -0,0 +1,44 @@ +. /usr/share/libubox/jshn.sh + +proto_config_add_int() { + json_add_int "$1" 5 +} + +proto_config_add_string() { + json_add_int "$1" 3 +} + +proto_config_add_boolean() { + json_add_int "$1" 7 +} + +add_default_handler() { + case "$(type $1 2>/dev/null)" in + *function*) return;; + *) eval "$1() { return; }" + esac +} + +case "$1" in + dump) + add_protocol() { + immediate=0 + + add_default_handler "$1_init_config" + + json_init + json_add_string "name" "$1" + eval "$1_init" + json_add_boolean immediate "$immediate" + json_add_object "config" + eval "$1_init_config" + json_close_object + json_dump + } + ;; + *) + add_protocol() { + return; + } + ;; +esac diff --git a/proto/ppp.sh b/proto/ppp.sh new file mode 100755 index 0000000..76df2f3 --- /dev/null +++ b/proto/ppp.sh @@ -0,0 +1,25 @@ +#!/bin/sh + +. netifd-proto.sh + +ppp_init_config() { + proto_config_add_string "username" + proto_config_add_string "password" + proto_config_add_int "keepalive" +} + +ppp_init() { + return +} + +add_protocol ppp + +pppoe_init_config() { + ppp_init_config +} + +pppoe_init() { + return +} + +add_protocol pppoe -- 2.30.2