diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-05-15 15:50:43 +0200 |
|---|---|---|
| committer | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-05-21 17:10:42 +0200 |
| commit | 939904672961fa7e28397e27f942a7d1fff4bbdf (patch) | |
| tree | f17d491b73f8c54982da96a2431b45e8d98f6000 /src/gprs_ms_storage.cpp | |
| parent | e43460b50fc152026ab96b5095b94fbac6939ab2 (diff) | |
ms: Support new and old TLLIs
According to the specification (GSM 04.08/24.008, 4.7.1.5) after a
new P-TMSI has been assigned, the old P-TMSI must be kept basically
until it has been used by both sides. Since the TLLI will be derived
from the P-TMSI, the old TLLI must also be kept until the new TLLI
has been used by both MS and SGSN.
This commit modifies the TLLI handling of GprsMs accordingly.
set_tlli() is only used with TLLIs derived from MS messages,
confirm_tlli() is used with TLLIs derived from messages received from
the SGSN. tlli() returns the value set by the MS. check_tlli()
matches each of the TLLI used by either MS or SGSN as well as the old
TLLI until it has been confirmed.
Sponsored-by: On-Waves ehf
Diffstat (limited to 'src/gprs_ms_storage.cpp')
| -rw-r--r-- | src/gprs_ms_storage.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gprs_ms_storage.cpp b/src/gprs_ms_storage.cpp index 7260f1bb..4f72c86f 100644 --- a/src/gprs_ms_storage.cpp +++ b/src/gprs_ms_storage.cpp @@ -58,9 +58,9 @@ GprsMs *GprsMsStorage::get_ms(uint32_t tlli, uint32_t old_tlli, const char *imsi llist_for_each(pos, &m_list) { ms = pos->entry(); - if (tlli && ms->tlli() == tlli) + if (ms->check_tlli(tlli)) break; - if (old_tlli && ms->tlli() == old_tlli) + if (ms->check_tlli(old_tlli)) break; /* TODO: Check for IMSI */ |