diff options
| author | Max <msuraev@sysmocom.de> | 2016-07-05 15:19:12 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2016-07-16 21:03:30 +0000 |
| commit | 4011e728d22a9affbe41fb2bfc8e69c14bd706ab (patch) | |
| tree | b0d6d66b7511cbd52a8204bb19535732e14f2d65 /openbsc/include | |
| parent | 9759374adbb632ff5f8a4b739e0f62a9c9017622 (diff) | |
SGSN: use unique AUTH REQ reference
The A&C reference number specified in 3GPP TS 24.008 § 10.5.5.19
identifies particular request sent by network with the related response
sent by MS. The value transparently copied from request to response by
MS: the spec do not specify what exactly should be in there so we use
rand() to decrease chance for collisions.
Note: variable named 'rand' clashes with standard function rand() so it
was renamed.
Change-Id: I3638821a9b4a0532b28dbbb50faa30c4082579f6
Related: OS#1582
Diffstat (limited to 'openbsc/include')
| -rw-r--r-- | openbsc/include/openbsc/gprs_sgsn.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/gprs_sgsn.h b/openbsc/include/openbsc/gprs_sgsn.h index 0e574d816..96040849b 100644 --- a/openbsc/include/openbsc/gprs_sgsn.h +++ b/openbsc/include/openbsc/gprs_sgsn.h @@ -158,6 +158,8 @@ struct sgsn_mm_ctx { /* Iu: CK, IK, KSI */ /* CKSN */ enum gprs_ciph_algo ciph_algo; + /* Auth & Ciphering Request reference from 3GPP TS 24.008 § 10.5.5.19: */ + uint8_t ac_ref_nr_used; struct { uint8_t len; |