ModemManager[115879]: <debug> [1613341789.760031] [modem3] completely disposed
(ModemManager:115879): GLib-CRITICAL **: 23:29:49.760: Source ID 2379 was not found when attempting to remove it
Thread 1 "ModemManager" received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff774b343 in g_logv () from /usr/lib/libglib-2.0.so.0
(gdb)
(gdb) bt
#0 0x00007ffff774b343 in g_logv () at /usr/lib/libglib-2.0.so.0
#1 0x00007ffff774b5c0 in g_log () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff7741c9e in g_source_remove () at /usr/lib/libglib-2.0.so.0
#3 0x00005555555aad02 in dispose (object=0x555555831260) at mm-device.c:802
#4 0x00007ffff7843755 in g_object_unref () at /usr/lib/libgobject-2.0.so.0
#5 0x00005555555a5107 in glib_autoptr_clear_MMDevice (_ptr=0x555555831260) at mm-device.h:63
#6 0x00005555555a5125 in glib_autoptr_cleanup_MMDevice (_ptr=0x7fffffffe090) at mm-device.h:63
#7 0x00005555555a59ab in device_removed (self=0x555555769220, subsystem=0x55555577dc50 "tty", name=0x555555869a40 "ttyUSB3") at mm-base-manager.c:237
#8 0x00005555555a620d in handle_uevent (self=0x555555769220, action=0x5555558987b0 "remove", device=0x555555893840) at mm-base-manager.c:445
#9 0x00007ffff7381acd in () at /usr/lib/libffi.so.7
#10 0x00007ffff738103a in () at /usr/lib/libffi.so.7
#11 0x00007ffff783c8fe in g_cclosure_marshal_generic () at /usr/lib/libgobject-2.0.so.0
#12 0x00007ffff7837072 in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#13 0x00007ffff785fa85 in () at /usr/lib/libgobject-2.0.so.0
#14 0x00007ffff78535dd in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#15 0x00007ffff7853b40 in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#16 0x00007ffff7e792aa in () at /usr/lib/libgudev-1.0.so.0
#17 0x00007ffff7742b84 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#18 0x00007ffff7796c21 in () at /usr/lib/libglib-2.0.so.0
#19 0x00007ffff77420d3 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#20 0x00005555555a1df4 in main (argc=2, argv=0x7fffffffea88) at main.c:213
On some modem (for example SORACOM SC-QGLC4-C1) , the character set setup
step fails with "Unknown error" when the SIM card is missing or locked.
This leads to not expose Modem interface and not being able to unlocked
the SIM.
We should not consider this step as fatal but just issue a warning to let
other steps continue (which will let modem in failed state anyway).
Closes#289
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
We can rely on QMI indications when the signal quality and access tech
changes happen, instead of doing explicit polling.
The modem will run the signal quality retrieval once, and then just
rely on indications, with polling disabled:
ModemManager[278759]: <debug> [1606862198.230492] [modem1] signal strength (lte): -79 dBm
ModemManager[278759]: <debug> [1606862198.230520] [modem1] signal strength: -79 dBm --> 55%
ModemManager[278759]: <debug> [1606862198.230583] [modem1] access technology changed (unknown -> lte)
ModemManager[278759]: <debug> [1606862198.230654] [modem1] signal quality updated (55)
ModemManager[278759]: <debug> [1606862198.230675] [modem1] periodic signal quality and access technology checks not rescheduled: unneeded or unsupported
ModemManager[278759]: <debug> [1606862198.230692] [modem1] periodic signal checks disabled
Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/231
When comparing bearer properties provided by the user versus loaded
from the modem, we shouldn't be very strict, e.g.:
* Password or other fields may not be readable from the device.
* Some fields may not apply at all (e.g. RM protocol for EPS bearers)
* NULL strings could be assumed equal to empty strings.
* If no explicit IP type specified, an IPv4 default may be assumed.
* If no explicit allowed auth specified, 'none' default may be
assumed.
These loose comparisons are applied when managing the initial EPS
bearer settings and status, and we keep the strict comparison only
during the connection attempt lookup of a bearer with certain
settings, as those bearer objects are all created in the same place
with the same rules.
This property (initially set to FALSE) controls whether QMI over MBIM
should never be considered. This property is set to TRUE for XMM-based
MBIM devices as they don't support QMI.
This fixes a probing delay of 15s on a Fibocom L850-GL device
(2cb7:0007) found in the Lenovo T14 Gen 1.
The establishing of a QMI connection was refused multiple time with
MBIM error OperationNotAllowed. Only the timeout of 15s for this
connection resumed the probing.
The properties in the MMBroadbandModemMbim are only installed when
WITH_QMI and QMI_MBIM_QMUX_SUPPORTED are set. Actually, this should only
disable the PROP_QMI_UNSUPPORTED but as this is the only property this
avoids the "unused variable 'self'" warnings/errors when trying to
compile set_property and get_property without QMI support. This can be
changed once other properties are needed.
Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/284
We had all the logic in place... but we were never actually enabling
the signal strength indications because the `enable` flag in the
context was never set.
The bug was introduced back in May 2018, and released with 1.10.0.
Fixes baefe53ab9
Do not fail to detect an error response with a call or text incoming. This happens during port probing when there's no URC parsers installed in the serial port. This probably will not happen when the serial port was managed by the modem object.w
Do not fail to detect a valid response with a call or text incoming.
This happens also during port probing when there's no URC parsers
installed in the serial port. This probably will not happen when the
serial port was managed by the modem object.
Enabling/Disabling/Changing/Sending the PIN1 lock is usually limited to
3 retries. If these attempts are exhausted, the modem is puk_locked.
We reprobe the modem to get rid of any unwanted interfaces and move
to a locked state.
If the lock status cannot be read during a puk unblock attempt, reprobe
the modem. It is likely that the SIM was permanently blocked if the lock
status cannot be read.
When there are multiple ports with the same purpose (e.g. multiple net
data ports, or multiple QMI control ports), sort them by name by
default.
The port order does not make any difference for ports that have
flagged with a specific purpose (e.g. AT primary).
The sorting is done both in the internal lists and when looking up
ports with find_ports().
Most older Qualcomm SoCs (e.g. MSM8916, MSM8974, ...) communicate with
the integrated modem via shared memory (SMD channels). This is similar
to QRTR on newer SoCs, but without the "network" layer. In fact, the
older SoCs also have QRTR, but the modem QMI services are not exposed
there.
The mainline Linux kernel exposes SMD channels via the "remote processor
messaging bus" (rpmsg). Through special IOCTL calls it is possible to
create a char device for a rpmsg/SMD channel. We can then use these to
send QMI/AT messages to the modem, much like the ordinary serial char
devices when using a Qualcomm modem through USB.
This commit introduces support for the new 'rpmsg' subsystem, which
allows exporting QMI-capable and AT-capable ports.
By default NO rpmsg port is flagged as candidate, it is assumed that
the plugin adding support for the rpmsg subsystem will add specific
rules to do so (e.g. so that non-modem ports are explicitly not
flagged as candidate).
All rpmsg ports will be probed for AT or QMI capabilities, unless
explicit port type hints (e.g. ID_MM_PORT_TYPE_QMI or
ID_MM_PORT_TYPE_AT_PRIMARY) are set.
These changes are highly based on the initial integration work done by
Stephan Gerhold <stephan@gerhold.net> in postmarketOS, see:
https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/363
In addition to loading port and device properties, we now also allow
loading sysfs properties that are assumed to be static (i.e. their
values won't change since loaded the first time).
Allow plugins to specify a QmiSioPort value to bind to. This is used
e.g. in the RPMSG+BAM-DMUX setup in order to allow any RPMSG port to
control all the available net ports.
Fixes an issue where (5+8n)-character long SMS messages received on a
CDMA network would be dropped with a "cannot read user data" error,
while other length SMS messages would be delivered fine.
Fix thanks to Peter Hunt
There is no point in creating a new kernel device object just to
process a remove event; instead, do any matching with existing
kernel device objects by subsystem and name, which is what the generic
backend already did anyway.
This avoids unnecessary lookup of information in sysfs during removal
events, because the port is anyway already gone when we try to look
those up.
Skip building the firmware version information with carrier config
information if the plugin already knows that the firmware upgrade
method doesn't implement carrier-specific upgrade paths.
Even if udev support is really built and available.
This is extremely useful to test the udev-less setup without fully
recompiling the whole daemon.
E.g.: the daemon can be run like this:
$ sudo /usr/sbin/ModemManager --debug --test-no-udev
And then, the kernel events may be reported using mmcli like this:
$ sudo mmcli --report-kernel-event-auto-scan
Instead of the custom simple implementation which only supported the
'*' modifier in the pattern. This allows us to support e.g. attribute
value matches like e.g. 'DATA[0-9]*_CNTL'.
Until now we did not support ATTRS{} matches against attributes we
don't support in the core codebase. Implement now a simple lookup
mechanism which traverses the tree of sysfs path from the port sysfs
path to the physical device sysfs path, looking up the attribute
requested.
This is not completely equivalent to what udev does, because the udev
rules matching ATTRS would usually also include an additional previous
matching e.g. SUBSYSTEMS and such, so that the ATTRS is looked up
exactly in the device that also matches the additional previous
rules. In our case, we just simplify the logic and return the first
one found.
We were applying the DRIVERS check looking only at the single port
driver. Instead, we now lookup and cache all drivers found in the
device tree, and apply the loose DRIVERS check properly looking at all
of them.
We were applying the SUBSYSTEMS and SUBSYSTEM check looking at the
sysfs path and just hoping the subsystem we're looking for is included
in the path itself. Instead, we now lookup and cache all susystems
found in the device tree, and apply the loose SUBSYSTEMS check
properly looking at all of them.
E.g. we can now match SUBSYSTEMS="mhi_q" in the following device tree,
without needing it to be found in the sysfs path:
looking at device '/devices/pci0000:00/0000:00:1b.0/0000:01:00.0/1001_00.01.00_MBIM/mhi_uci_q/mhi_MBIM':
SUBSYSTEM=="mhi_uci_q"
looking at parent device '/devices/pci0000:00/0000:00:1b.0/0000:01:00.0/1001_00.01.00_MBIM':
SUBSYSTEMS=="mhi_q"
looking at parent device '/devices/pci0000:00/0000:00:1b.0/0000:01:00.0':
SUBSYSTEMS=="pci"
The generic backend implementation was really based on detecting USB
devices, not so much devices in other subsystems. This patch puts the
generic backend at the same level as the udev backend to support
non-USB modems.
USB, PCI, PCMCIA... all these different system buses expose modems in
different ways. Instead of having single methods to attempt to load
different things for all these device types, detect first which is the
system bus in use, and then perform a bus-specific operation to
preload the different things.
We can just subclass the methods to check whether a given property
exists and to get it as a string, and then implement in the generic
class the actual boolean/int/hex type getters common for all.
Each different plugin or protocol had a different connection attempt
value. E.g. QMI and MBIM both used 60s max for the connection attempt,
while the u-blox plugin had up to 180s for ECM based connection
setups.
This commit consolidates all plugins and protocols to use the same
timeout values for commands that may take long to respond, e.g. a
connection atempt under low signal quality conditions.
A value of 180s for the connection attempt steps and 120s for a
disconnection attempt step is considered. Note, though, that in some
cases (like a IPv4v6 setup attempt using QMI) we may have more than
one such long step, so this doesn't mean that a connection attempt
will always take less than 180s.
Users of the connection/disconnection APIs should be able to handle
the case where the attempt times out in their side (e.g. with a lower
DBus request timeout), and which would not mean the actual request
they did really failed. E.g. a connection attempt with a DBus timeout
of 30s may fail in the user with a timeout error, but the attempt
would still go on for as much as the plugin/protocol needs.
Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/270
Aleksander Morgado
Dylan Van Assche
Andrew Lassalle
Frederic Martinsons
Torsten Hilbrich
Pavan Holla
David Leonard