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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/openbsc/commit/?id=13713264aa539ce1343ad6c7dd0f8308b242a892
commit 13713264aa539ce1343ad6c7dd0f8308b242a892
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
- remove this commit
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=f30d7455f17f8488b03d8727f33dfaa39e812107
commit f30d7455f17f8488b03d8727f33dfaa39e812107
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=917d8e33aa0f6f14d459124ab63961a1876b7379
commit 917d8e33aa0f6f14d459124ab63961a1876b7379
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=b0f9aae0e08b65ce2636218379853f88f33134fa
commit b0f9aae0e08b65ce2636218379853f88f33134fa
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=033dacd0be40045485ce85fe6d736dad56277b97
commit 033dacd0be40045485ce85fe6d736dad56277b97
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 5 16:20:47 2015 +0100
gprs: Pass GMM causes related to the MSC connection
Currently the error causes MSC_TEMP_NOTREACH, NET_FAIL, and
CONGESTION are silently dropped to force the MS to continue. On the
other hand, GSM 04.08/24.008, 4.7.3.1.4 in combination with 4.7.3.1.5,
require the MS to retry the attachment procedure for cause codes
above 15 instead of disabling GPRS. All of the mentioned GMM causes
have codes above 15, so using a REJECT message including the cause
code is a better choice. This way, the retry algorithm based on T3311
(15s, 5 times) and T3302 (default 12min) could be used.
This patch modifies gprs_subscr_handle_gsup_auth_err and
gprs_subscr_handle_gsup_upd_loc_err to proceed like when the access
has beed denied, except that the corresponding subscriber's
information fields are not cleared.
This has been successfully tested which an iphone which enters a
retry loop as it is being described in the specification.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=df41492476d1134f907c9eeaa8da592223012e30
commit df41492476d1134f907c9eeaa8da592223012e30
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Dec 23 14:24:16 2014 +0100
sgsn: Use LOGMMCTX for logging
To unify the layout of the logging messages, this patch replaces some
calls to LOGP by calls to LOGMMCTXP.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=d255302af01073748213504bd65692941b30c01c
commit d255302af01073748213504bd65692941b30c01c
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 5 18:57:32 2015 +0100
gprs: Let GSUP parser functions return GMM causes on errors
Currently the GSUP message handling function in gprs_subscriber.c and
the functions in gprs_gsup_messages.c are not consistent with respect
to the return codes if an error happens. Albeit all error return
codes are negative, the semantics of the absolute value are not
clearly defined. In addition, some return codes are not passed to the
calling function.
This path changes these functions to always return a negated GMM
cause value in case of errors. Return values of called parser
functions are not longer ignored.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=9230f1a7537821dff9b5cd6f65fd77cf5a0a16f8
commit 9230f1a7537821dff9b5cd6f65fd77cf5a0a16f8
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 5 18:38:41 2015 +0100
gprs: Use the cause value in GSUP error messages
Currently always a cause with the meaning of 'access denied' is
assumed. gprs_subscr_handle_gsup_auth_err just clears the auth
triplets and the authorized flag before calling the update function.
gprs_subscr_handle_gsup_upd_loc_err only clears the authorized flag
and calls the update function. This means, that an MS will not retry
to attach even on temporary network errors.
This patch changes these functions to use the GSUP error cause value
to decide, whether to clear the corresponding subscriber fields, to
just continue with the corresponding update function, or to log,
ignore and not pass the cause to the MS in case the error is directly
related to the GSUP protocol. The subscriber's error_cause field is
updated, if the update function is going to be called. The
error_cause fielt is reset on non-error GSUP messages.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=67014fd5657394534326c99554f89ec85970e509
commit 67014fd5657394534326c99554f89ec85970e509
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 5 17:51:17 2015 +0100
gprs: Pass subscriber error causes to the GMM layer
This patch extends gsm0408_gprs_access_denied and
gsm0408_gprs_access_cancelled to accept GMM cause codes. These are
then passed to the MS, unless gsm0408_gprs_access_cancelled is called
with cause 0 (no error -> updateProcedure).
Since gsm0408_gprs_access_denied uses GMM_CAUSE_GPRS_NOTALLOWED if
the cause is not set, and the subscriber's error_cause is never set
(and thus always 0), the SGSN's behaviour does not change with this
patch.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=e8978ac39c5e96877960f0df07644efc8a0bc321
commit e8978ac39c5e96877960f0df07644efc8a0bc321
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jan 5 17:30:02 2015 +0100
gprs: Move protocol value_strings to gsm_04_08_gprs.c
Currently the mapping between GSM 04.08 (GPRS) protocol specific
numbers and their textual description was put into gprs_gmm.c and not
exported.
This commit moves the mappings to a new file gsm_04_08_gprs.c,
renames some of them, and exports them via gsm_04_08_gprs.h.
The following identifiers are renamed to match the corresponding type
names:
- gmm_cause_names -> gsm48_gmm_cause_names
- gsm_cause_names -> gsm48_gsm_cause_names
Sponsored-by: On-Waves ehf
-----------------------------------------------------------------------
Summary of changes:
openbsc/include/openbsc/gsm_04_08_gprs.h | 11 +++
openbsc/src/gprs/Makefile.am | 3 +-
openbsc/src/gprs/gprs_gmm.c | 134 +++++------------------------
openbsc/src/gprs/gprs_gsup_messages.c | 4 +-
openbsc/src/gprs/gprs_subscriber.c | 20 ++++-
openbsc/src/gprs/gsm_04_08_gprs.c | 141 +++++++++++++++++++++++++++++++
openbsc/tests/sgsn/Makefile.am | 1 +
7 files changed, 192 insertions(+), 122 deletions(-)
create mode 100644 openbsc/src/gprs/gsm_04_08_gprs.c
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The OpenBSC GSM Base Station Controller (+MSC/HLR/SGSN)