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The branch, jerlbeck/wip/gprs-patching has been updated
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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/openbsc/commit/?id=1b2e8e11206f00ca1a0b8367c2ea65a49a49b8c9
commit 1b2e8e11206f00ca1a0b8367c2ea65a49a49b8c9
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 18:01:42 2015 +0100
sgsn: Remove inactive LLME/MM after inactivity timeout (TODO)
Currently old LLMEs and MM contexts that haven't been explicitly
detached or cancelled are not removed until another request with the
same IMSI is made. These stale entries may accumulate over time and
severely compromise the operation of the SGSN.
This patch implements age based LLME expiry, when the maximum age has
been reached, the corresponding MM context is removed. If such an MM
context doesn't exist, the LLME is unassigned directly.
TODO:
- split commit
- replace hard-coded values by real config
- age_timeout -> age, timeout: age = (age == RESET ? 1 : age + TICK)
Ticket: OW#1364
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=647ae2ff68b4e9a95c62b5837bf7330eb9a9aa2d
commit 647ae2ff68b4e9a95c62b5837bf7330eb9a9aa2d
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 08:27:34 2015 +0100
gprs: Add GPRS timer conversion functions (TODO)
TODO:
- commit message
- test
Ticket: OW#????
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=3aa1f5242c550ab940ab913dc444fe24163a3dd9
commit 3aa1f5242c550ab940ab913dc444fe24163a3dd9
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Sep 30 13:53:26 2014 +0200
sgsn: Added TODOs (TODO)
TODO:
- fix and remove TODOs
- add test cases for Detach(reattach)
- add test cases for PDP context deletion (OW#1311)
- add test cases for Cancel pending timer in sgsn_mm_ctx_free
- implement age based MM context expiry
- remove this commit
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=dd399a0da4f3d78ff980c8b2e741119fa1991319
commit dd399a0da4f3d78ff980c8b2e741119fa1991319
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Oct 17 10:08:02 2014 +0200
sgsn: Do not die in _bssgp_tx_dl_ud on TLLI mismatch (TODO)
Currently an OSMO_ASSERT fails, if the message's and the mmctx's
TLLIs do not match.
This commit turns the assertion into an ERROR log message and uses
the default values for IMSI, DRX, and RA CAP instead of the MM
context values in this case.
TODO:
- find the real source for the problem
- add test cases derived from what is being described in the ticket
Ticket: OW#1322
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=b25cd3064cf4c613ed19633657071ea2a9668582
commit b25cd3064cf4c613ed19633657071ea2a9668582
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Wed Dec 17 14:03:35 2014 +0100
sgsn: Add PDP info to subscriber data (TODO)
TODO:
- commit message
- raw binary representation ???
- tests
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=50f009135d5814ba55e1fb718538eca1154d1b48
commit 50f009135d5814ba55e1fb718538eca1154d1b48
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Dec 19 19:11:20 2014 +0100
sgsn: Add logging to connect_timer_cb (TODO)
TODO:
- LOGLevel ?
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=ca4ec2cd26fef34825b430c7e0e16faaa8cb9fcd
commit ca4ec2cd26fef34825b430c7e0e16faaa8cb9fcd
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 14:11:46 2015 +0100
sgsn: Restructure the 'update-subscriber' command
This patch drops the following commands:
- update-subscriber imsi IMSI insert authorized <0-1>
- update-subscriber imsi IMSI commit
since they are already covered by the 'update-location-result'
sub-command, except that this command doesn't create an new entry if
none is found with the given IMSI.
It adds the following command:
- update-subscriber imsi IMSI create
which can be used to create a new entry.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=a94708c025f864b38a6c1f4463f3e8de9a542547
commit a94708c025f864b38a6c1f4463f3e8de9a542547
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 14:29:43 2015 +0100
sgsn: Fix vty_out newlines
Currently '\n' is used to end lines in the VTY output string
constants instead of inserting VTY_NEWLINE. This leads to incorrect
line starts in error messages.
This patch fixes that accordingly.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=bbb716965344a46653ab388823570d575a7a6d8d
commit bbb716965344a46653ab388823570d575a7a6d8d
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 11:10:04 2015 +0100
sgsn: Add SGSN_ERROR_CAUSE_NONE and use it instead of 0
Currently an error_cause of 0 is being used to indicate normal
operation. Albeit this is not a defined GMM cause, the value is not
explicitly reserved.
This commit adds the macro SGSN_ERROR_CAUSE_NONE and uses it for
initialisation (instead of relying on talloc_zero) and comparisons.
The value is set to -1 to be on the safe side. The VTY code is
updated to set the error_cause when using the
'update-subscriber imsi IMSI update-location-result CAUSE' command.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=cedc73bf6346353e6c04a2ace9986a99cfa30475
commit cedc73bf6346353e6c04a2ace9986a99cfa30475
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 10:56:15 2015 +0100
gprs: Return 0 from gsup_client_connect if ok or retry timer enabled
Currently the gsup_client_connect return 0 if the call to
ipa_client_conn_open was successful and -errno otherwise. This makes
it difficult for the caller to determine, whether the the whole
operation has been cancelled (currently on EBADF, ENOTSOCK,
EAFNOSUPPORT, EINVAL) or whether the GSUP client will retry to
connect after a timeout. This will cause gprs_gsup_client_create to
destroy the GSUP client object, even if the error might be temporary.
This patch changes the function to return 0 if (and only if)
ipa_client_conn_open was successful or the retry timer has been
started. Since the return value 0 doesn't guarantee, that a
subsequent call to gprs_gsup_client_send will succeed, this shouldn't
break anything.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=870f7c20e1af47129ab055b72c288919cb89f6fc
commit 870f7c20e1af47129ab055b72c288919cb89f6fc
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 09:13:05 2015 +0100
sgsn: Fix access to subscr in sgsn_auth_update (Coverity)
Currently the access to subscr->sgsn_data->error_cause is not
protected against subscr == NULL like it is done in other code paths
of sgsn_auth_update.
This commit adds a conditional to avoid a NULL-dereference.
Fixes: Coverity CID 1264589
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=3793b21a42a3e33c0356a59d3153988bc40c7820
commit 3793b21a42a3e33c0356a59d3153988bc40c7820
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 19 08:57:07 2015 +0100
sgsn/test: Make assert_substr safer (Coverity)
Currently, if assert_subscr were called with subscr == NULL, the
later call to subscr_put might fail, as Coverity has complained. In
addition, the call to subscr_put would free the subscr object if it
were in the cache with a refcount of 0 at the time assert_substr was
called.
This patch adds a check for the subscr being non-NULL and reorders
the checks, so that the subscr_put comes last.
Fixes: Coverity CID 1264590
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=a1f7a53a95483560f91fe601ed837581e25ebda1
commit a1f7a53a95483560f91fe601ed837581e25ebda1
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jan 15 18:51:31 2015 +0100
sgsn: Fix P-TMSI generator's distance of equal values
Currently sgsn_alloc_ptmsi uses rand() to get a new P-TMSI and then
sets to upper 2 MSB. Therefore there is no lower limit of the
distance between 2 identical P-TMSI.
This patch changes the implementation to discard any random value
above 2^30 and to generate a new random number in that case until a
fitting number is found (or a repetition limit is reached). This way,
all number below 2^30 within the PRNG's period are used.
Ticket: OW#1362
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=244aeadb616702b34d479be3872a5e1bf71120b0
commit 244aeadb616702b34d479be3872a5e1bf71120b0
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jan 8 15:29:01 2015 +0100
gprs: Support the full cancellation procedure
Currently no GSUP LocationCancellationResult message is sent back to
the peer (HLR), if the procedure succeeded at the SGSN's side.
This patch adds the missing message and put the whole request
handling of this procedure into a separate function.
Ticket: OW#1338
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=10a8847d671260da5d94d76c5751424f2f367a0e
commit 10a8847d671260da5d94d76c5751424f2f367a0e
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jan 15 17:50:16 2015 +0100
gprs: Don't create a subscr entry on InsertSubscriberData
Currently gprs_subscr_rx_gsup_message creates a subscriber entry if
such an entry doesn't exist for the IMSI within an
InsertSubscriberData GSUP message. This behaviour is not compliant to
GSM 09.02, 20.3.3.2 (Subscriber data management/SGSN) where it is
defined, that an error ("Unidentified subscriber") shall be returned.
This patch removes the case distinction, so that an existing
subscriber entry is required for all incoming GSUP messages.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=1635150f2ccfb3cba636b42ac8aa1c916e0ae8ec
commit 1635150f2ccfb3cba636b42ac8aa1c916e0ae8ec
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jan 15 17:08:30 2015 +0100
gprs: Add replies for all GSUP requests
Currently, an incoming GSUP request message isn't answered at all if
it is not handled due to an error or missing implementation.
This patch adds GSUP error replies for these requests (and only for
requests). It also adds tests for these cases.
Note that several of these tests check for
GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL, which will have to be changed, when
the features are implemented.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=a688976f10bfb0c14954a066aa133f28bce3a541
commit a688976f10bfb0c14954a066aa133f28bce3a541
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jan 8 16:23:25 2015 +0100
gprs: Block other GSUP procedures during PURGE_MS
GSM 09.02, 19.4.1.4 mandates that no other MAP procedures shall be
started until the PURGE_MS procedure has been completed.
This patch implements this by adding corresponding state and checks
to gprs_subscr_purge, gprs_subscr_location_update, and
gprs_subscr_update_auth_info. If an Update Location or a Send Auth
Info Req procedure is not started because of blocking, the retry
mechanism is aborted to shorten the blocking time. The outstanding
Purge MS procedure itself is not aborted.
Sponsored-by: On-Waves ehf
-----------------------------------------------------------------------
Summary of changes:
openbsc/include/openbsc/gprs_llc.h | 5 ++
openbsc/include/openbsc/gprs_sgsn.h | 4 +-
openbsc/include/openbsc/gprs_utils.h | 5 ++
openbsc/include/openbsc/gsm_04_08_gprs.h | 5 +-
openbsc/include/openbsc/sgsn.h | 2 +
openbsc/src/gprs/gprs_gmm.c | 14 +++--
openbsc/src/gprs/gprs_gsup_client.c | 13 +++--
openbsc/src/gprs/gprs_llc.c | 4 ++
openbsc/src/gprs/gprs_llc_vty.c | 7 ++-
openbsc/src/gprs/gprs_sgsn.c | 64 +++++++++++++++++++++++
openbsc/src/gprs/gprs_subscriber.c | 10 ++--
openbsc/src/gprs/gprs_utils.c | 31 ++++++++++++
openbsc/src/gprs/sgsn_auth.c | 4 +-
openbsc/src/gprs/sgsn_main.c | 1 +
openbsc/src/gprs/sgsn_vty.c | 87 +++++++++++++++-----------------
openbsc/tests/sgsn/sgsn_test.c | 5 +-
openbsc/tests/vty_test_runner.py | 10 ++--
17 files changed, 201 insertions(+), 70 deletions(-)
hooks/post-receive
--
The OpenBSC GSM Base Station Controller (+MSC/HLR/SGSN)