The way things are currently coded, the gobi plugin calls
qmi_device_discover and does nothing else until it succeeds. As such,
we can safely assume that the version_list is set up when we go to
create a service.
The only thing this output parameter is being used for now is for
getting the transaction ID. Return the TID directly from
__submit_requesta and drop the 'head' parameter altogether.
The only way request_alloc can fail is if one of the memory allocation
routines fail to allocate memory. However, Linux memory allocation
doesn't really fail in this manner; memory can be overcommited and the
out-of-memory reaper will take care of re-establishing the balance when
excess memory is actually accessed.
Given this, request_alloc will never return anything other than success
and the failure paths will never be exercised.
The service and control requests differ slightly in their headers, but
this difference is minor enough that we can handle it directly in the
request submission routine. This patch unifies the header setup for the
two request types.
After setting up the request structure, qmi_service_send makes no
further use of the 'param' and 'service' fields of the service_send_data
structure. This patch removes those fields and frees 'param'
immediately after the request has been allocated and the parameter data
thereby copied into the send buffer.
If an operation is in progress and an operation is canceled, we don't
actually destroy it, but simply clear out the callback. In the case of
a context being destroyed, the operation is left on the simfs op_q with
a dangling pointer to the already freed context. So the current logic
in sim_fs_op_free tries to access invalid memory.
Fix this by performing the watch operations in sim_fs_end_current
instead and setting the context pointer appropriately.
==2870== Conditional jump or move depends on uninitialised value(s)
==2870== at 0x4C2ED31: __memcmp_sse4_1 (vg_replace_strmem.c:972)
==2870== by 0x4F451A: sim_pin_retries_query_cb (sim.c:462)
==2870== by 0x459BDD: query_pin_retries_cb (sim.c:544)
==2870== by 0x45544A: service_send_callback (qmi.c:2143)
==2870== by 0x452D00: handle_packet (qmi.c:815)
==2870== by 0x452E85: received_data (qmi.c:863)
==2870== by 0x508DB6C: g_main_context_dispatch (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508DF47: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508E271: g_main_loop_run (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x4C680B: main (main.c:256)
==2870== Uninitialised value was created by a stack allocation
==2870== at 0x459B1A: query_pin_retries_cb (sim.c:531)
==2870==
==2870== Conditional jump or move depends on uninitialised value(s)
==2870== at 0x4F451D: sim_pin_retries_query_cb (sim.c:462)
==2870== by 0x459BDD: query_pin_retries_cb (sim.c:544)
==2870== by 0x45544A: service_send_callback (qmi.c:2143)
==2870== by 0x452D00: handle_packet (qmi.c:815)
==2870== by 0x452E85: received_data (qmi.c:863)
==2870== by 0x508DB6C: g_main_context_dispatch (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508DF47: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508E271: g_main_loop_run (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x4C680B: main (main.c:256)
==2870== Uninitialised value was created by a stack allocation
==2870== at 0x459B1A: query_pin_retries_cb (sim.c:531)
==2870==
==2870== Conditional jump or move depends on uninitialised value(s)
==2870== at 0x4F3DFB: get_pin_retries (sim.c:278)
==2870== by 0x4F4553: sim_pin_retries_query_cb (sim.c:467)
==2870== by 0x459BDD: query_pin_retries_cb (sim.c:544)
==2870== by 0x45544A: service_send_callback (qmi.c:2143)
==2870== by 0x452D00: handle_packet (qmi.c:815)
==2870== by 0x452E85: received_data (qmi.c:863)
==2870== by 0x508DB6C: g_main_context_dispatch (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508DF47: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508E271: g_main_loop_run (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x4C680B: main (main.c:256)
==2870== Uninitialised value was created by a stack allocation
==2870== at 0x459B1A: query_pin_retries_cb (sim.c:531)
==2870==
==2870== Conditional jump or move depends on uninitialised value(s)
==2870== at 0x4F3E65: get_pin_retries (sim.c:288)
==2870== by 0x4F4553: sim_pin_retries_query_cb (sim.c:467)
==2870== by 0x459BDD: query_pin_retries_cb (sim.c:544)
==2870== by 0x45544A: service_send_callback (qmi.c:2143)
==2870== by 0x452D00: handle_packet (qmi.c:815)
==2870== by 0x452E85: received_data (qmi.c:863)
==2870== by 0x508DB6C: g_main_context_dispatch (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508DF47: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x508E271: g_main_loop_run (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4200.1)
==2870== by 0x4C680B: main (main.c:256)
==2870== Uninitialised value was created by a stack allocation
==2870== at 0x459B1A: query_pin_retries_cb (sim.c:531)
0 0x00007ffff7b20517 in g_queue_is_empty () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
1 0x00005555556adcdd in sim_fs_op_free (pointer=0x5555559cb990) at src/simfs.c:101
2 0x00007ffff7b205fc in g_queue_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
3 0x00007ffff7b2065b in g_queue_free_full () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
4 0x00005555556add81 in sim_fs_free (fs=0x5555559c0780) at src/simfs.c:125
5 0x00005555556828f3 in sim_remove (atom=0x5555559cb000) at src/sim.c:3175
6 0x000055555564f16f in flush_atoms (modem=0x555555a8fb00, new_state=MODEM_STATE_POWER_OFF) at src/modem.c:432
7 0x000055555564f3bd in modem_change_state (modem=0x555555a8fb00, new_state=MODEM_STATE_POWER_OFF)
at src/modem.c:510
8 0x000055555564ff99 in set_powered (modem=0x555555a8fb00, powered=0) at src/modem.c:896
9 0x000055555565074c in modem_set_property (conn=0x55555596c8d0, msg=0x55555596e460, data=0x555555a8fb00)
at src/modem.c:1120
==14399== 28 bytes in 4 blocks are definitely lost in loss record 151 of 390
==14399== at 0x4C2BBAF: malloc (vg_replace_malloc.c:299)
==14399== by 0x209065: convert_gsm_to_utf8_with_lang (util.c:651)
==14399== by 0x2091D1: convert_gsm_to_utf8 (util.c:690)
==14399== by 0x22DDA7: ussd_decode (smsutil.c:4738)
==14399== by 0x18BF71: qmi_ussd_request (ussd.c:233)
==14399== by 0x2183EA: ussd_initiate (ussd.c:614)
==14399== by 0x27B6C8: process_message (object.c:259)
==14399== by 0x27D1CD: generic_message (object.c:1070)
==14399== by 0x5170732: ??? (in /lib/x86_64-linux-gnu/libdbus-1.so.3.14.14)
==14399== by 0x5161D83: dbus_connection_dispatch (in /lib/x86_64-linux-gnu/libdbus-1.so.3.14.14)
==14399== by 0x27907C: message_dispatch (mainloop.c:72)
==14399== by 0x4E826A9: g_main_context_dispatch (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.5000.3)
==14399== 16 bytes in 8 blocks are definitely lost in loss record 132 of 390
==14399== at 0x4C2BBAF: malloc (vg_replace_malloc.c:299)
==14399== by 0x59E03D9: strndup (strndup.c:43)
==14399== by 0x18277E: qmi_result_get_string (qmi.c:1794)
==14399== by 0x184221: get_ids_cb (devinfo.c:129)
==14399== by 0x18353B: service_send_callback (qmi.c:2286)
==14399== by 0x18093C: handle_packet (qmi.c:831)
==14399== by 0x180ADD: received_data (qmi.c:880)
==14399== by 0x4E826A9: g_main_context_dispatch (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.5000.3)
==14399== by 0x4E82A5F: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.5000.3)
==14399== by 0x4E82D81: g_main_loop_run (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.5000.3)
==14399== by 0x201900: main (main.c:306)
When an LTE modem registers with the network, a default bearer is
automatically established. The APN used for this bearer is taken from
whatever default settings the modem has.
The LTE atom takes cares of setting up the default context/profile with
the APN to use. From there, a default bearer will be established when
the modem registers with the network. This results in a call to 'Get
LTE Attach Parameters' which tells us what APN the gateway negotiated
with us.
If we can't get the APN, we do what the AT driver does: pretend the
bearer wasn't established. This is a reasonable fallback, currently,
because connman can't handle zero-length APN's anyway; the previous
approach of setting the APN to 'automatic' breaks connman badly when it
needs to switch between LTE and non-LTE networks.
This atom needs to be created in post_sim so that the APN can be
written to the default profile before the modem attempts to use the
setting to connect to the network.
This patch adds an LTE atom for QMI modems.
This atom sets the APN that the LTE default bearer should use when
establishing its PDP context. This APN needs to be set on the 'default'
profile so the atom queries which profile is the default and resets
it before allowing the APN to be set.
Once configured, the default profile settings are used when the
modem connects to the network; for this reason, the LTE atom needs
to be instantiated in post_sim, before the modem is set online.
==31530== 366 (48 direct, 318 indirect) bytes in 3 blocks are definitely lost in loss record 165 of 186
==31530== at 0x4C2BF8F: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==31530== by 0x50BB3A3: g_malloc (gmem.c:94)
==31530== by 0x50D62B4: g_slice_alloc (gslice.c:1025)
==31530== by 0x50D7A1E: g_slist_prepend (gslist.c:254)
==31530== by 0x4DD0B3: sim_parse_app_template_entries (simutil.c:1590)
==31530== by 0x4D2242: discover_apps_cb (sim.c:1509)
==31530== by 0x45E364: at_discover_apps_cb (sim.c:1579)
==31530== by 0x49CB5F: at_chat_finish_command (gatchat.c:459)
==31530== by 0x49DAC7: at_chat_handle_command_response (gatchat.c:521)
==31530== by 0x49DAC7: have_line (gatchat.c:600)
==31530== by 0x49DAC7: new_bytes (gatchat.c:759)
==31530== by 0x49FCEF: received_data (gatio.c:122)
==31530== by 0x510C2F3: g_io_unix_dispatch (giounix.c:165)
==31530== by 0x50B2D44: g_main_dispatch (gmain.c:3203)
==31530== 88 bytes in 2 blocks are definitely lost in loss record 132 of 186
==31530== at 0x4C2BF8F: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==31530== by 0x5847B97: vasprintf (in /lib64/libc-2.23.so)
==31530== by 0x510AE38: g_vasprintf (gprintf.c:316)
==31530== by 0x50D8BDF: g_strdup_vprintf (gstrfuncs.c:514)
==31530== by 0x50D8CAA: g_strdup_printf (gstrfuncs.c:540)
==31530== by 0x4F706B: build_nai (sim-auth.c:660)
==31530== by 0x4F706B: sim_auth_register (sim-auth.c:738)
==31530== by 0x4F706B: ofono_sim_auth_create (sim-auth.c:768)
==31530== by 0x4ACBB4: modem_change_state (modem.c:525)
==31530== by 0x4AD0CD: sim_state_watch.part.5 (modem.c:720)
==31530== by 0x4CF6D0: call_state_watches (sim.c:366)
==31530== by 0x4CF6D0: sim_set_ready (sim.c:1475)
==31530== by 0x4CF6D0: sim_imsi_obtained (sim.c:1577)
==31530== by 0x45D868: at_cimi_cb (sim.c:453)
==31530== by 0x49CB5F: at_chat_finish_command (gatchat.c:459)
==31530== by 0x49DAC7: at_chat_handle_command_response (gatchat.c:521)
==31530== by 0x49DAC7: have_line (gatchat.c:600)
==31530== by 0x49DAC7: new_bytes (gatchat.c:759)
aid_sessions was not properly reset to NULL when freed:
Program received signal SIGSEGV, Segmentation fault.
__ofono_watchlist_free (watchlist=0x0) at src/watch.c:91
91 for (l = watchlist->items; l; l = l->next) {
(gdb) bt
func=0x4ceca0 <aid_session_free>, user_data=0x0)
at /var/tmp/portage/dev-libs/glib-2.50.3-r1/work/glib-2.50.3/glib/gslist.c:878
free_func=0x4ceca0 <aid_session_free>)
at /var/tmp/portage/dev-libs/glib-2.50.3-r1/work/glib-2.50.3/glib/gslist.c:172
at src/sim.c:2605
user_data=<optimized out>) at plugins/phonesim.c:511
func=0x49c8a0 <at_notify_call_callback>, user_data=0x7fffffffdbc0)
at /var/tmp/portage/dev-libs/glib-2.50.3-r1/work/glib-2.50.3/glib/gslist.c:878
chat=0x7b70b0) at gatchat/gatchat.c:417
Jonas Bonn
Denis Kenzior
Bassem Boubaker
Mariem Cherif
Gabriel Lucas
Marcel Holtmann
Slava Monich
Christophe Ronco
Philippe De Swert