Refresh signal strength and access technologies,
check for SIM swaps, and check if the SIM is locked.
The modem may have switched to a different
access technologies or have a different signal strength
when resuming. Moreover, the user may swap or remove
the SIM when suspended.
When calling an async method ona given type, the convention is to use
the same type in the corresponding ready() method, so that we can use
it without additional casts on the finish().
The synchronization after resume should only be needed on enabled
modems, as otherwise there is really no chance that the state of the
modem may have changed during suspend.
E.g. if a modem is failed because it doesn't have a SIM card, or if
the SIM-PIN is locked, or if the modem has never been enabled, there
is no point in attempting to synchronize the runtime state of the
modem.
The mm_base_modem_sync() method is an asynchronous method that
receives a callback and user data, and therefore we MUST always
complete the async method calling that callback. Set that up with a
GTask as usual.
Also, the mm_base_modem_sync_finish() method should be implemented
along with mm_base_modem_sync(), not in the source file of the
caller of the async method. The finish() always depends on how the
async method was implemented, in our case using a GTask.
Under certain rare conditions (e.g. race between querying devices of a
given subsystem and the kernel tearing those devices down), the
subsystem reported for a GUdevDevice seems to be NULL.
So, ensure both subsystem and name are set on the GUdevDevice before we
process them.
The issue has been observed on GUdevDevices listed by
g_udev_client_query_by_subsystem(), not on the ones asynchronously
reported via uevents, but we add the validity check on both places for
consistency.
Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/343
The logic that creates the device identifier uses some fields that are
exposed in DBus (e.g. model, manufacturer...).
We should not attempt to load any of that info if the DBus skeleton
for the Modem interface is no longer available, as e.g. the device may
have gone away already.
Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/374
When we receive an indication reporting a network-initiated
disconnection, convert the MBIM network error into a
MMMobileEquipmentError, and publish it in the new 'ConnectionError'
property.
When we receive an indication reporting a network-initiated
disconnection, convert the QMI call end reason into a
MMMobileEquipmentError, and publish it in the new 'ConnectionError'
property.
By default, fallback to "unknown" mobile equipment error when the
modem gets disconnected by the network and we don't have any way to
know a more detailed reason.
When a user-requested connection attempt fails, we not only return the
connection error to the user that requested it, we also publish the
specific connection error in DBus for others to check why the failure
happened.
This new property will provide detailed information about the failed
connection attempt, or about the network initiated disconnection. The
property will be cleared only if a new connection attempt is
triggered, and so it can be used to investigate why a given attempt
failed without needing to be the one who triggered the attempt (e.g.
so that failures in NetworkManager-triggered connection attempts can
be investigated looking at the DBus API).
The property is built as a (ss) tuple, but the libmm-glib interface
provides methods to read this property as a GError.
Since ModemManager 1.0 we were publishing symbols to identify all the
possible DBus error name prefixes, but these were never documented,
they were explicitly ignored in gtk-doc.
Let's provide proper documentation for them and make them first-class
API symbols.
On a failed QMI modem connection, we won't return the generic
"CallFailed" error, we'll try to convert the 3GPP verbose call end
reason to a MMMobileEquipmentError.
And if we cannot find a mapping, or if the reported error is not a
3GPP verbose call end reason, we'll return a Unknown
MMMobileEquipmentError with a string message providing detailed error
information.
Instead of having a switch with a lot of cases, provide a one to one
mapping for the MbimNwError and MMMobileEquipmentError codes in an
array, and make use of the mm_mobile_equipment_error_for_code() helper
to build the actual GError.
Update the list of mobile equipment error codes according to v17.1.0
of 3GPP TS 27.007 (March 2021).
A lot of the enum values that were prefixed with the 'GPRS_' keyword
have now been flagged as deprecated, and a new enum name given to the
corresponding value.
The deprecated symbol names are kept in the compat support to avoid
breaking API/ABI.
