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authorDaniel Willmann <dwillmann@sysmocom.de>2016-03-16 18:39:52 +0100
committerDaniel Willmann <dwillmann@sysmocom.de>2016-03-16 18:39:52 +0100
commitdeb227b98e4136f873f76ea3362bfb74673f48bc (patch)
tree93e80b9c3582911e701871bef90e29465d62e73e
parent5e611021b03f541b579f1b1fd5b421d41a7ec60a (diff)
gprs_gmm: Fix RA UPD handling for IU mode
-rw-r--r--openbsc/src/gprs/gprs_gmm.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index cb61593f8..e96dbcdc8 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -1326,10 +1326,15 @@ static int gsm48_rx_gmm_ra_upd_req(struct sgsn_mm_ctx *mmctx, struct msgb *msg,
uint8_t mi_len = TLVP_LEN(&tp, GSM48_IE_GMM_ALLOC_PTMSI);
uint8_t *mi = TLVP_VAL(&tp, GSM48_IE_GMM_ALLOC_PTMSI);
uint8_t mi_type = *mi & GSM_MI_TYPE_MASK;
+ uint32_t tmsi;
+
gsm48_mi_to_string(mi_string, sizeof(mi_string), mi, mi_len);
- if (mi_type == GSM_MI_TYPE_TMSI)
- mmctx = sgsn_mm_ctx_by_ptmsi(mi_string);
+ if (mi_type == GSM_MI_TYPE_TMSI) {
+ memcpy(&tmsi, mi+1, 4);
+ tmsi = ntohl(tmsi);
+ mmctx = sgsn_mm_ctx_by_ptmsi(tmsi);
+ }
}
if (mmctx) {
LOGMMCTXP(LOGL_INFO, mmctx,