diff options
| author | Max <msuraev@sysmocom.de> | 2017-10-09 16:26:43 +0200 |
|---|---|---|
| committer | Max <msuraev@sysmocom.de> | 2017-10-09 16:26:43 +0200 |
| commit | 7ad8fa65e8ff6bb3f481b2c6c9801a3a5d8aa0e8 (patch) | |
| tree | 4782570672def3ccfaec7c69b3492833a0908085 | |
| parent | 86e04df8629f275af04982eb1b8d6c6701db5b1c (diff) | |
Check for correct P-TMSI allocation
Do not assign new P-TMSI if allocation failed.
Change-Id: Ifa71bbc8df726c74aceaf9ae3eb49e124a53910a
| -rw-r--r-- | src/gprs/gprs_gmm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/gprs/gprs_gmm.c b/src/gprs/gprs_gmm.c index dff84a9e8..d11ecced8 100644 --- a/src/gprs/gprs_gmm.c +++ b/src/gprs/gprs_gmm.c @@ -1242,8 +1242,11 @@ static inline void ptmsi_update(struct sgsn_mm_ctx *ctx) /* Don't change the P-TMSI if a P-TMSI re-assignment is under way */ if (ctx->gmm_state != GMM_COMMON_PROC_INIT) { ptmsi = sgsn_alloc_ptmsi(); - ctx->p_tmsi_old = ctx->p_tmsi; - ctx->p_tmsi = ptmsi; + if (ptmsi != GSM_RESERVED_TMSI) { + ctx->p_tmsi_old = ctx->p_tmsi; + ctx->p_tmsi = ptmsi; + } else + LOGMMCTXP(LOGL_ERROR, ctx, "P-TMSI allocation failure: using old one.\n"); } ctx->gmm_state = GMM_COMMON_PROC_INIT; } |