build: require CMake >= 3.10 due to dropped legacy support

CMake version 4.0 and later require minimum version of 3.5 or later.
Update to minimum version 3.10 which is the last not deprecated minimum
version.

CMake 3.10 was released in November 2017 and is included in Ubuntu 18.04.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

umbim: fix invalid mbim message string encoding

Strings in mbim messages have to follow these formatting rules:
 - 4 byte alignment, padded if not.
 - utf-16 little endian.

Fixes:
 - mbim connect fails with more than 1 string parameter (apn/user/pass)
   when they are not 4 byte aligned.

Signed-off-by: Daniel Danzberger <daniel@dd-wrt.com>

umbim: fix compilation with GCC 10

When building umbim with GCC 10, a bunch of these errors appear:

cli.c: In function 'mbim_device_caps_response':
cli.c:55:29: error: taking address of packed member of 'struct mbim_basic_connect_device_caps_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
   55 |  deviceid = mbim_get_string(&caps->deviceid, buffer);
      |                             ^~~~~~~~~~~~~~~

Fix them by disabling padding between fields of struct mbim_string.

Acked-by: John Crispin <john@phrozen.org>
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

umbim: add home provider query support

This adds support to query the home provider, mainly for debugging and
information purposes.

Signed-off-by: Ingo Feinerer <feinerer@logic.at>
Reviewed-by: Bjørn Mork <bjorn@mork.no>

Iron out all extra compiler warnings

mbim-msg.c:83:17: error: comparison between signed and unsigned integer expressions
cli.c:50:10: error: comparison between signed and unsigned integer expressions
cli.c:81:10: error: comparison between signed and unsigned integer expressions
cli.c:104:10: error: comparison between signed and unsigned integer expressions
cli.c:140:10: error: comparison between signed and unsigned integer expressions
cli.c:154:18: error: comparison between signed and unsigned integer expressions
cli.c:171:10: error: comparison between signed and unsigned integer expressions
cli.c:194:10: error: comparison between signed and unsigned integer expressions
cli.c:223:10: error: comparison between signed and unsigned integer expressions
cli.c:229:17: error: comparison between signed and unsigned integer expressions
cli.c:241:17: error: comparison between signed and unsigned integer expressions
cli.c:247:17: error: comparison between signed and unsigned integer expressions
cli.c:259:17: error: comparison between signed and unsigned integer expressions
cli.c:272:10: error: comparison between signed and unsigned integer expressions
cli.c:549:16: error: comparison between signed and unsigned integer expressions
mbim-dev.c:68:21: error: comparison between signed and unsigned integer expressions
mbim-dev.c:97:10: error: comparison between signed and unsigned integer expressions

Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Petr Štetiar <ynezz@true.cz>

Enable extra compiler checks

Let's enforce additional automatic checks enforced by the compiler in
order to catch possible errors during compilation.

Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Petr Štetiar <ynezz@true.cz>

mbim-proxy support

This adds support for the libmbim-glib "mbim-proxy", allowing umbim to access
a device under ModemManager control. The feature is mostly useful for debugging
and development purposes, and is therefore disabled by default.

Signed-off-by: Bjørn Mork <bjorn@mork.no>

umbim: add registration set support

This implements the MBIM automatic registration mode to let the function
select the best provider network.

Signed-off-by: Ingo Feinerer <feinerer@logic.at>
Reviewed-by: Bjørn Mork <bjorn@mork.no>

add radio_state set/query support

Signed-off-by: Bjørn Mork <bjorn@mork.no>

update usage()

Signed-off-by: Bjørn Mork <bjorn@mork.no>

get buffer size from driver

Signed-off-by: Bjørn Mork <bjorn@mork.no>

dynamically allocate buffer

Signed-off-by: Bjørn Mork <bjorn@mork.no>

support non default ip-types

Signed-off-by: Bjørn Mork <bjorn@mork.no>

support IPv6 configuration

Signed-off-by: Bjørn Mork <bjorn@mork.no>

fix IP configuration prefix output

Signed-off-by: Bjørn Mork <bjorn@mork.no>

add command_id to verbose output

Signed-off-by: Bjørn Mork <bjorn@mork.no>

avoid parsing InformationBuffer unless status is "success"

The MBIM specification requires that the InformationBuffer
is empty unless the status field is MBIM_STATUS_SUCCESS,
except for 4 explicit combinations of status code and
command id.

Avoid calling the reply handler if the status code is
non-zero and the information buffer is empty.

Signed-off-by: Bjørn Mork <bjorn@mork.no>

add command done status to verbose output

Signed-off-by: Bjørn Mork <bjorn@mork.no>

fix subscriber response segfault

Signed-off-by: Bjørn Mork <bjorn@mork.no>

fix build for 64 bit systems

Signed-off-by: John Crispin <blogic@openwrt.org>

cleanup authprotocol handling

Signed-off-by: John Crispin <blogic@openwrt.org>

add support for authproto/username/password

Signed-off-by: John Crispin <blogic@openwrt.org>

sanitize pincode properly

Signed-off-by: John Crispin <blogic@openwrt.org>

add gpl license

Signed-off-by: John Crispin <blogic@openwrt.org>

initial import