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Avoid a crash when reading a SMS and a Subscriber could not be resolved.
It is not clear why the read was failing. The sender_id and the receiver_id
was valid for the given sms. I assume that the database has been locked
due external access to it.
The side-effect is that in case of such a failure the sms_queue will start
to deliver starting from subscriber id = 0 again.
#1 0x0000000000428bec in sms_from_result (net=0x156a270, result=0x15eda30) at db.c:1146
#2 0x000000000042a8e0 in db_sms_get_unsent_by_subscr (net=0x156a270,
min_subscr_id=<optimized out>, failed=<optimized out>) at db.c:1255
#3 0x000000000042e900 in take_next_sms (smsq=<optimized out>) at sms_queue.c:193
#4 sms_submit_pending (_data=0x158e300) at sms_queue.c:227
#5 0x00007f3fd30de3bc in osmo_timers_update () at timer.c:243
#6 0x00007f3fd30de69b in osmo_select_main (polling=0) at select.c:133
#7 0x0000000000406fbc in main (argc=9, argv=<optimized out>) at bsc_hack.c:346
(gdb) frame 1
#1 0x0000000000428bec in sms_from_result (net=0x156a270, result=0x15eda30) at db.c:1146
1146 strncpy(sms->src.addr, sms->sender->extension, sizeof(sms->src.addr)-1);
(gdb) p *sms
(gdb) p sms->sender
$1 = (struct gsm_subscriber *) 0x0
(gdb) p sender_id
$2 = <optimized out>
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In FreeBSD there is no spearate library for dlopen, dlsym and dlerror.
Use LIBRARY_DL to check for this condition.
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We were expiring subscribers during active calls. This is because
the T3212 is stopped under certain conditions but we didn't stop
that timer at all.
Remember if T3212 timer was stopped due something done by NITB and
update the expiration time at the end of the radio connection, as
the phone should restart it when returning to MM Idle.
It is a bit difficult to decide when we should set the flag. E.g.
in a CM Service Request we don't know if we accept the service and
during a LU we already send MM messages before we accept or reject
the subscriber.
The easiest is to set the flag when receiving a paging response
on known subscribers and at the end of the authentication process.
Do not expire a subscriber that has an active connection that is
marked with the flag, e.g. we would still expire a subscriber that
is being paged.
Manual tests executed/passed:
* gst LUTest.st verified that a expiration date was set
* gst SMSTest.st (doing another LU but forcing a timeout on the
SMS sending). Verified that the expire_lu was updated.
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Since automake 1.13 INCLUDES is depricates and causes a warning
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gsm_data_shared.h includes e1_input.h of libosmo-abis, add the
LIBOSMOABIS_CFLAGS to Makefile.am, remove AM_LDFLAGS at the same
time as we only build .a archives.
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The quality of the tests is of different value but it is good to
get started and improve from here.
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* Initialize logging
* The callback expects NULL or a subscriber connection
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GCC 4.6.0 and LD.BFD 2.21 on ARM somehow fail to resolve
the dbi symbols when we have the library in front of the
static libraries, move them to the back.
Without this patch the tlv_def_patch symbol and the
gsm48_construct_ra.
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GCC 4.6.0 and LD.BFD 2.21 on ARM somehow fail to resolve
the dbi symbols when we have the library in front of the
static libraries, move them to the back.
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Summary of changes:
s/struct bsc_fd/struct osmo_fd/g
s/bsc_register_fd/osmo_fd_register/g
s/bsc_unregister_fd/osmo_fd_unregister/g
s/bsc_select_main/osmo_select_main/g
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libosmogsm is a new library that is distributed in the libosmocore.
Now, openbsc depends on it. This patch gets openbsc with this
change.
This patch also rewrites all include path to the new
osmocom/[gsm|core]
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
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... and make sure tests work again after restructuring
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bsc_init.c was a big mess even only for two supported BTS models,
so before adding more BTS types, this needs a cleanup.
All the BTS specific code from bsc_init.c has now moved into
bts_{siemens_bs11,ipaccess_nanobts}.c
This has required that input_event() and nm_state_event() get both
converted to proper libosmocore signals instead of referencing external
symbols.
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If one paging request is timing out the others will timeout soon
as well. With the current code the next timeout would expire the
next request in the queue. We will now stop all paging requests
and then issue a next paging request. So for both paging success
and failure we will now stop all the other requests.
This is mostly a workaround, one should count on how many
BTSes we are paging and wait for all failures before we remove
the item from the queue.
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The reason for this is quite simple: We want to make sure anyone
running a customized version of OpenBSC to operate a network will
have to release all custom modifiations to the source code.
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Store the mapping from request to channel type in the GSM Network
struct as there is some policy involved with handling the request.
E.g. in a half rate network we don't want emergy calls to be getting
a TCH/F, or we want to have a different policy for early/late assignment
of phone calls. Update the table when creating the network and when
the neci is changed.
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* use pkg-config from openbsc to find header and library
* move sms and timer tests to libosmocore itself
* ensure "make distcheck" works on both packages
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Remove the extra parameter from the method, the network can be
taken from the subscriber.
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For the BSC part we still assign a gsm_subscriber to lchan but it
might only contain the TMSI of this subscriber.
For the MSC part we will need the HLR/VLR feature of the gsm_subscriber,
specially the lookup's by number...
So if libbsc.a/libmsc.a are compiled in one app and used the
subscribers will be shared, and if only libbsc.a gets used we will
have more empty gsm_subscriber.c..
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Next round should be using them again
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This is simulating a successfull request and is causing
a segfault. The test is done with a "mock object" in this
case a minimalistic paging implementation which is enough
to show the crash.
Compare that the callback data is supposed to be the same....
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