The maximum MTU that the master interface can support should be less
or equal than RMNET_MAX_PACKET_SIZE, as defined in the
`rmnet_private.h` file in the linux sources (not a public header).
Only applicable to RMNET link management (i.e. not to qmi_wwan
add_mux/del_mux).
Fixes https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/issues/71
When not requesting multiplexing support, only assume we don't need
any additional setup if multiplexing is disabled AND if the data modes
match between kernel and device.
This fixes the connection setup in MSM8916 (rpmsg+bam/dmux).
The new option will change the default setting in MBIM and QMI bearers
to "request" when no explicit "multiplex" configuration is given by
the user.
This option will help test the multiplexing support in the modems
before it's made a default in a future release.
The next 1.18 release will have multiplexing support, but not enabled
by default, to avoid breaking setups that don't expect the new virtual
net interfaces for the multiplexed sessions.
The exception is Qualcomm SoCs using the IPA driver, where
multiplexing is fully required.
The next 1.18 release will have multiplexing support, but not enabled
by default, to avoid breaking setups that don't expect the new virtual
net interfaces for the multiplexed sessions.
Using "requested" as a common default for every possible
implementation works, because it can handle setups without
multiplexing capabilities (e.g. plain AT+PPP modems) and also setups
without non-multiplexing capabilities (e.g. IPA based SoCs).
But if we don't want "requested" as default, then there will be
failing cases; e.g. we cannot use "none" as default for all as it
would break IPA, and we cannot use "required" as default for all as it
would break AT+PPP setups.
So, remove the common default, it's not flexible enough.
In IPA based setups, there are only multiplexed bearers supported,
there is no way to not enable multiplexing.
We change the logic that computes the maximum number of multiplexed
and non-multiplexed bearers, so that we check which are the current
kernel data modes before computing them.
Fixes warnings on AT+PPP based devices:
ModemManager[602870]: <debug> [1626948725.168355] [modem0] allowed up to 1 active bearers
(ModemManager:602870): GLib-GObject-WARNING **: 12:12:05.185: value "0" of type 'guint' is invalid or out of range for property 'max-active-multiplexed-bearers' of type 'guint'
A pointer can not be used anymore after its ownership has been transfered
using the g_steal_pointer function (pointer is nullified).
In this function, g_steal_pointer() is used when inserting 'value' inside
the array but can also be subsequently used when dumping 'value' to
'out_value' via g_strdup().
Fix that with simple reordering.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
The following functionalities are implemented:
1. Hold all and accept
2. Hangup all and accept
3. Hangup all
4. Join multiparty
5. Leave multiparty
6. Call transfer
Only the plural ATTRS form was checked but we also need to support
the single ATTR for matching device's attribute only.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
The template files in the `build-aux` directory used in enums sources
and headers generation use the `{$name}-template.[ch]` pattern.
However, the examples in the official guide[0] and usually GNOME and
Freedesktop packages use the `{$name}.[ch].template` pattern.
Due to this, the name of the template files and build commands have
been changed.
[0] https://developer.gnome.org/gobject/stable/glib-mkenums.html
We should check if WDA is supported before running any other logic
that may change the state of the kernel or the modem. E.g. if we don't
do this as the first step, the loading of the supported kernel data
modes may end up changing the expected kernel data mode to raw-ip.
WWAN network devices expose link management over netlink (wwan type),
but it is not yet supported by libmbim.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
The wwan subsystem is a new bus agnostic framework exposing wwan
device and its components (ports, netdev...). It can be useful to
get the wwan device a device belongs to
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Will be set by base modem when organizing ports, similar to
net driver name. Required for fetching the TX and RX endpoint IDs
through sysfs from linux 5.14 onwards.
When querying the slots using "Slot info status", the modem expects
the slot index passed in the [0,number_slots-1] range.
But for the ModemManager API, the slot indices start at 1; i.e. they
are in the [1,number_of_slots] range.
Consider that wen reporting the current slot index using MBIM.
We should never run any mm_bearer_properties_set_X() operations
ourselves for the properties received by the user, or otherwise the
logic comparing the bearers will fail and we may end up creating one
bearer per connection attempt.
==636642== Syscall param socketcall.sendto(msg) points to uninitialised byte(s)
==636642== at 0x5282BAC: send (in /usr/lib/libpthread-2.33.so)
==636642== by 0x4EF20AF: UnknownInlinedFun (gsocket.c:3426)
==636642== by 0x4EF20AF: g_socket_send_with_blocking (gsocket.c:3529)
==636642== by 0x4EDF176: g_output_stream_write (goutputstream.c:242)
==636642== by 0x4EDF2D4: g_output_stream_write_all (goutputstream.c:301)
==636642== by 0x4A5CDAC: endpoint_send (qmi-endpoint-qmux.c:409)
==636642== by 0x4A5B963: qmi_endpoint_send (qmi-endpoint.c:225)
==636642== by 0x4A55408: qmi_device_command_abortable (qmi-device.c:2897)
==636642== by 0x4A554C3: qmi_device_command_full (qmi-device.c:2923)
==636642== by 0x4B52664: qmi_client_nas_set_system_selection_preference (qmi-nas.c:61099)
==636642== by 0x1F6FDC: register_in_network_sssp (mm-shared-qmi.c:455)
==636642== by 0x1F71E6: mm_shared_qmi_3gpp_register_in_network (mm-shared-qmi.c:505)
==636642== by 0x19FCF0: mm_iface_modem_3gpp_register_in_network (mm-iface-modem-3gpp.c:484)
==636642== Address 0x880a3b3 is 19 bytes inside a block of size 32 alloc'd
==636642== at 0x484383F: realloc (vg_replace_malloc.c:1192)
==636642== by 0x50DC130: g_realloc (gmem.c:171)
==636642== by 0x50A067C: g_array_maybe_expand (garray.c:1009)
==636642== by 0x50A0A0C: UnknownInlinedFun (garray.c:520)
==636642== by 0x50A0A0C: g_array_append_vals (garray.c:509)
==636642== by 0x50A0A9E: g_byte_array_append (garray.c:2430)
==636642== by 0x4A4B70D: qmi_message_tlv_write_guint8 (qmi-message.c:686)
==636642== by 0x4B14CA8: __qmi_message_nas_set_system_selection_preference_request_create (qmi-nas.c:33477)
==636642== by 0x4B525B6: qmi_client_nas_set_system_selection_preference (qmi-nas.c:61087)
==636642== by 0x1F6FDC: register_in_network_sssp (mm-shared-qmi.c:455)
==636642== by 0x1F71E6: mm_shared_qmi_3gpp_register_in_network (mm-shared-qmi.c:505)
==636642== by 0x19FCF0: mm_iface_modem_3gpp_register_in_network (mm-iface-modem-3gpp.c:484)
==636642== by 0x1B0BD4: check_next_registration (mm-iface-modem-simple.c:154)
Prior to this change, a hotswap on the inactive slot would result
in reprobe of the modem. With this change, the sim object would be
updated, but no reprobe will be performed. The advantage is
1) we do not drop connections on the active slot
2) Slot status on the inactive slot is susceptible to firmware bugs.
We have seen scenarios where the inactive slot is reported as
absent/ iccid={0}, followed by a correction. We should not
reprobe the modem if our active slot hasn't changed.
Not all manufacturers expect this service to be used for the simple
purpose of reseting the modem.
It works with Sierra Wireless devices (e.g. EM7345,
XMM7160_V1.1_MODEM_01.1349.12), but it doesn't work with Cinterion
devices (e.g. mPLS62-w, XMM7160_V1.1_MBIM_NAND_ADAPT_R).
So allow plugins to disable its use entirely.
Aleksander Morgado
Andrew Lassalle
ZhangMingjie
Loic Poulain
Joel Selvaraj
Teijo Kinnunen
Iñigo Martínez
Pavan Holla