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http://cgit.osmocom.org/openbsc/commit/?id=c93f898e6de4dfc3328b206cd2b8724c6c133215
commit c93f898e6de4dfc3328b206cd2b8724c6c133215
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Nov 10 10:35:51 2014 +0100
sgsn: Use gsm_subscriber (TODO)
TODO:
- commit message
- continue impl.
Ticket: OW#????
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=6d1dc3c02f5a2839e998c7ec1275270d49b9db9e
commit 6d1dc3c02f5a2839e998c7ec1275270d49b9db9e
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Nov 7 14:17:44 2014 +0100
sgsn: Refactor sgsn_auth (TODO)
TODO:
- Commit title
- Commit message
- Use sgsn_instance instead of config as parameter
Ticket: OW#????
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=d49b478c9b91a14daf37de826533fb793827939e
commit d49b478c9b91a14daf37de826533fb793827939e
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Nov 6 15:43:10 2014 +0100
sgsn: Don't assign a new P-TMSI if one is pending (TODO)
Currently every time a RA Update Req or an Attach Req is processed, a
new P-TMSI is alocated. When an MS issues another of these messages
before it has completed the first procedure, old_ptmsi is replaced by
ptmsi (and thus lost) and ptmsi is replaced by the newly allocated
P-TMSI. This can confuse the gbproxy, which can loose track of the
logical link then. At least a blackberry emits a double set of RA Upd
Req messages from time to time which may be just 20ms apart.
This patch adds a check whether mm->ptmsi or mm->old_ptmsi are not
both set. If both are set, the P-TMSI is not re-allocated. This is
only the case, if the Complete message has not been received since
that resets old_ptmsi.
TODO:
- Test case
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=c09bee263d257e6f7ac574a542057c2181cd5da8
commit c09bee263d257e6f7ac574a542057c2181cd5da8
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=1fcb88a3db244830c07f28dcde6467ba3ac9239d
commit 1fcb88a3db244830c07f28dcde6467ba3ac9239d
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=5b98e682e5985fe60a9ebdaae8134a305021ff25
commit 5b98e682e5985fe60a9ebdaae8134a305021ff25
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Nov 7 14:07:48 2014 +0100
bsc: Move gsm_subscriber_base.c to libcommon
Since it is planned to use struct gsm_subscriber to manage subscriber
data in the SGSN, this file which contains the generic subscriber
related methods is moved to libcommon.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=418c164fa36acbe33b2ec75eccbbba551f62a844
commit 418c164fa36acbe33b2ec75eccbbba551f62a844
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Nov 10 11:21:32 2014 +0100
bsc: Move gsm_network_init function to libbsc
Currently libcommon depends on libbsc, because gsm_network_init
(libcommon/gsm_data.c) directly calls gsm_net_update_ctype
(libbsc/gsm_04_08_utils.c).
This patch moves gsm_network_init to a new file libbsc/net_init.c.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=f12e41de7dc441f8c2837f792853511a0e038ddb
commit f12e41de7dc441f8c2837f792853511a0e038ddb
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Nov 6 13:43:41 2014 +0100
sgsn: Cleanup after RA Update Reject / Attach Reject
Currently, the LLME is not cleanup up after sending an RA Update
Reject. This happens after entering a routing area from outside,
since in that case the SGSN sends an RA Update Reject (implicitly
detached) which causes the MS to restart the attach procedure.
The LLME is also not updated if an Attach Request with message errors
(encoding, invalid MI type) is received or if an MM context cannot be
allocated.
This patch changes gsm48_rx_gmm_ra_upd_req and gsm48_rx_gmm_att_req
to unassign the LLME or free the MM context (if available) after a
Reject message has been sent.
Ticket: OW#1324
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=3191e00c847cd780d220aa7c9b50c2a5906217a4
commit 3191e00c847cd780d220aa7c9b50c2a5906217a4
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Nov 4 12:44:15 2014 +0100
sgsn: Notify an affected MM context if an ACL rule is removed
Currently if an ACL access rule is removed, MS already attached are
not affected until they try to reattach to the SGSN.
This patch extends sgsn_acl_del to re-authenticate an MM context if
it matches the IMSI.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=e0e0217321efd2d1103d9fa4e73a7a116fa83c6e
commit e0e0217321efd2d1103d9fa4e73a7a116fa83c6e
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Nov 4 10:08:37 2014 +0100
sgsn: Add 'acl-only' authentication policy
Currently the VTY 'auth-policy' command results in setting or clearing
the acl_enabled flag. This also enables the matching of the MCC/MNC
prefix of the IMSI.
This patch adds an additional policy 'acl-only' which disables the
MCC/MNC matching and relies on the ACL only.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=b460f57502f7a0cc21a5171f877d9528c144c7f7
commit b460f57502f7a0cc21a5171f877d9528c144c7f7
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Nov 4 11:15:01 2014 +0100
sgsn/test: Add VTY tests for the SGSN
This patch adds some basic SGSN tests to vty_test_runner.py:
- check for config tree nodes
- check specific show commands
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=3245dbc7a695da12e88991918f73dc8abea8c3fe
commit 3245dbc7a695da12e88991918f73dc8abea8c3fe
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Oct 24 18:09:54 2014 +0200
sgsn: Make authorization asynchronous
Currently the authorization of an IMSI is done by checking ACLs
synchronously which is not feasible when the subscriber data has to
be retrieved from an external source.
This patch changes this by using a callback when the information is
available. This is also done when only ACL are checked, in this case
the callback is invoked from within sgsn_auth_request(). The callback
function sgsn_update_subscriber_data calls sgsn_auth_update which
in turn calls either gsm0408_gprs_access_granted or
gsm0408_gprs_access_denied. gsm48_gmm_authorize is extended by a call
to sgsn_auth_request when IMSI and IMEI are available but the
auth_state is unknown.
The change has been successfully tested with single phones (E71 and
IPhone 5c).
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=b88c41d64c2b2df18fc578f996f00cdd76f222af
commit b88c41d64c2b2df18fc578f996f00cdd76f222af
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Nov 3 12:48:43 2014 +0100
bsc: Fix use-after-free on OML NM messages from the BTS
Currently the sign_link pointer is dereferenced after a call to
osmo_signal_dispatch, which can indirectly call
e1inp_sign_link_destroy. If that happens, accessing *sign_link is
illegal and can lead to a segmentation violation.
Since only the bts pointer is needed from sign_link after the call to
osmo_signal_dispatch, this patch changes abis_nm_rcvmsg_fom to save
that pointer to a local variable earlier.
Addresses:
<0019> input/ipa.c:250 accept()ed new link from 192.168.1.101 to port 3002
SET ATTR NACK CAUSE=Message cannot be performed
<0005> bsc_init.c:52 Got a NACK going to drop the OML links.
<001b> bsc_init.c:319 Lost some E1 TEI link: 1 0xb351a830
=================================================================
==13198== ERROR: AddressSanitizer: heap-use-after-free on address 0xb5d1bc70 at pc 0x80a6e3d bp 0xbfbb33d8 sp 0xbfbb33cc
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=56e655632df54283b3634e2a2e2dac96710830ff
commit 56e655632df54283b3634e2a2e2dac96710830ff
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Wed Oct 29 22:12:20 2014 +0100
sgsn: Move IMSI authorization to gsm48_gmm_authorize
Currently the IMSI is only checked immediately when an Attach Request
is received that contains an IMSI IE. If it contains a P-TMSI
instead, access is always granted.
This commit moves the IMSI check to gsm48_gmm_authorize where it is
applied when IMSI and IMEI have been acquired. This fixes the
authorization when the Attach Accept doesn't contain an IMSI.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=79a481bfc005283221f300b01efdefad4dcdb9d3
commit 79a481bfc005283221f300b01efdefad4dcdb9d3
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Oct 31 12:27:11 2014 +0100
sgsn: Fix LLME leak when forcing a reattach
Currently when forceing a reattach by sending a Detach
Request (reattach), the SGSN waits for the Detach Accept until it
frees the MM context (if present) and the LLME. If that message gets
lost or isn't sent by the MS, the LLME is never freed if it isn't
bound to an MM context.
This patch adds code to free the MM context/LLME when forcing a
reattachment.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=8e2148ab0ec232b50484c01876316f1417822bde
commit 8e2148ab0ec232b50484c01876316f1417822bde
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Oct 31 12:20:49 2014 +0100
sgsn: Split gsm0408_gprs_force_reattach into 2 functions
This patch replaces gsm0408_gprs_force_reattach(msg, mmctx) by two
functions
- gsm0408_gprs_force_reattach(mmctx)
- gsm0408_gprs_force_reattach_oldmsg(msg)
The old function basically consists of the code of the two new
functions, where the code patch selected depends on mmctx == NULL,
which is harder to maintain, less obvious to use, and not consistent
with many other SGSN functions.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=a312c4bb27e6dd1fa03e78138370d583570380d6
commit a312c4bb27e6dd1fa03e78138370d583570380d6
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Nov 3 10:12:52 2014 +0100
sgsn: Call mm_ctx_cleanup_free to deregister MM context
Currently the MM context isn't always removed when it is
de-registered (mmctx_timer_cb), mm_state is set to GMM_DEREGISTERED
instead. This can lead to left-over MM contexts which are only
cleaned up if the MS reattaches.
This patch replaces all of these assignments by a call to
mm_ctx_cleanup_free.
Ticket: OW#1324
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=81b6311deaaac6fe97ba11eee94dc922b6b16e14
commit 81b6311deaaac6fe97ba11eee94dc922b6b16e14
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Oct 28 16:23:46 2014 +0100
sgsn: Cleanup GMM state transitions
Currently the GMM state is set to GMM-REGISTERED when an Attach
Accept or a RA Update Accept message is sent, even if a new P-TMSI is
included. In this case 04.08 requires (see 4.7.3.1.3 and 4.7.5.1.3),
that the state is set to GMM-COMMON-PROCEDURE-INITIATED when the
Accept is sent. When the Complete is received, the SGSN shall set
the state to GMM-REGISTERED.
This patch modifies the state updates accordingly.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=5bc648f29af30528349aaabcce8c962210a7b50f
commit 5bc648f29af30528349aaabcce8c962210a7b50f
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Wed Oct 29 12:11:58 2014 +0100
sgsn/test: Add test_gmm_attach
This test checks the attach procedure until the Attach Complete is
received.
Note that authorization and GMM state updates are not working
properly yet.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=db483b72f1c8e2c397f88baa05b6b53f76362a04
commit db483b72f1c8e2c397f88baa05b6b53f76362a04
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Wed Oct 29 10:31:18 2014 +0100
sgsn/test: Move message sending to send_0408_message
This replaces serveral occurences of duplicated code for message
creation and sending (passing to gsm0408_gprs_rcvmsg) into a single
function. In addition, the sgsn_tx_counter is always reset within
send_0408_message to simplify the code that checks for the number of
messages sent.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=7d8e8b9a13b3b2ea8404581f980869b711617e2e
commit 7d8e8b9a13b3b2ea8404581f980869b711617e2e
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Tue Oct 28 12:23:29 2014 +0100
sgsn: Reorganize and fix gsm48_gmm_authorize
Currently the order of the 'if' clauses in gsm48_gmm_authorize
doesn't match the order in which the conditional parts are entered.
This makes it difficult to maintain. In addition the t3350_mode is
not stored in every path, so that this information is lost when the
identification procedure is started. Since the default value
coincidentally is GMM_T3350_MODE_ATT, this doesn't hurt for Attach
Requests which are the only messages that initially trigger the
authentication yet.
This patch changes the order of the 'if' clause to match the
processing order, it removes the t3350_mode parameter entirely and
introduces a mm->pending_req field. The latter must be set when the
request that causes the authorization before calling
gsm48_gmm_authorize. The gprs_t3350_mode enum is extended by
GMM_T3350_MODE_NONE (value 0, which is the default) to make it
possible to detect related initialisation errors or race conditions.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=2c00b904bb31f807c501c26addcc046ca8496521
commit 2c00b904bb31f807c501c26addcc046ca8496521
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Oct 31 10:47:29 2014 +0100
gbproxy: Honour the BSS TLLI type when creating an SGSN TLLI
Currently gbproxy_make_sgsn_tlli always returns a foreign TLLI when
it uses the (SGSN) P-TMSI to generate one.
This patch changes the implementation to return a SGSN TLLI of the
same type like the BSS TLLI in that case.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/openbsc/commit/?id=f9330da55561d3cad6220e8c0a6dea53990309fc
commit f9330da55561d3cad6220e8c0a6dea53990309fc
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Oct 30 17:15:43 2014 +0100
gbproxy: Reset TLLIs when the link_info is found by IMSI/P-TMSI
Currently when the MS does a re-attach without doing a proper detach
first, the gbproxy uses the old local TLLI if patching and the keep
mode are enabled. This leads to a failing attachment procedure when
TLLI patching is also enabled.
This patch changes gbproxy_get_link_info_ul to reset all TLLIs within the
link_info if the message contains an unknown TLLI and an MI. This is
generally the case with Attach Request messages.
Ticket: OW#1324
Sponsored-by: On-Waves ehf
-----------------------------------------------------------------------
Summary of changes:
openbsc/include/openbsc/gprs_sgsn.h | 9 +-
openbsc/include/openbsc/gsm_subscriber.h | 4 +
openbsc/include/openbsc/sgsn.h | 3 +-
openbsc/src/gprs/Makefile.am | 2 +-
openbsc/src/gprs/gprs_sgsn.c | 31 ++++++-
openbsc/src/gprs/gprs_subscriber.c | 73 +++++++++++++++
openbsc/src/gprs/sgsn_auth.c | 52 ++++++++---
openbsc/src/gprs/sgsn_main.c | 3 -
openbsc/src/gprs/sgsn_vty.c | 8 +-
openbsc/src/libbsc/Makefile.am | 4 +-
openbsc/src/libbsc/bts_ipaccess_nanobts.c | 6 +-
openbsc/src/libbsc/net_init.c | 102 +++++++++++++++++++++
openbsc/src/libcommon/Makefile.am | 4 +-
openbsc/src/libcommon/gsm_data.c | 80 ----------------
.../{libbsc => libcommon}/gsm_subscriber_base.c | 0
openbsc/src/osmo-bsc_nat/Makefile.am | 3 +-
openbsc/src/utils/Makefile.am | 4 +-
openbsc/tests/channel/Makefile.am | 8 +-
openbsc/tests/sgsn/Makefile.am | 2 +
19 files changed, 280 insertions(+), 118 deletions(-)
create mode 100644 openbsc/src/gprs/gprs_subscriber.c
create mode 100644 openbsc/src/libbsc/net_init.c
rename openbsc/src/{libbsc => libcommon}/gsm_subscriber_base.c (100%)
hooks/post-receive
--
The OpenBSC GSM Base Station Controller (+MSC/HLR/SGSN)