[GPRS] LLC: Fix logic to detect unknown TLLI/SAPI
diff --git a/openbsc/src/gprs/gprs_llc.c b/openbsc/src/gprs/gprs_llc.c
index 484a168..ee65a91 100644
--- a/openbsc/src/gprs/gprs_llc.c
+++ b/openbsc/src/gprs/gprs_llc.c
@@ -513,14 +513,16 @@
/* 7.2.1.1 LLC belonging to unassigned TLLI+SAPI shall be discarded,
* except UID and XID frames with SAPI=1 */
- if (!lle && llhp.sapi == GPRS_SAPI_GMM &&
- (llhp.cmd == GPRS_LLC_XID || llhp.cmd == GPRS_LLC_UI)) {
- /* FIXME: don't use the TLLI but the 0xFFFF unassigned? */
- lle = lle_alloc(msgb_tlli(msg), llhp.sapi);
- } else {
- LOGP(DLLC, LOGL_NOTICE,
- "unknown TLLI/SAPI: Silently dropping\n");
- return 0;
+ if (!lle) {
+ if (llhp.sapi == GPRS_SAPI_GMM &&
+ (llhp.cmd == GPRS_LLC_XID || llhp.cmd == GPRS_LLC_UI)) {
+ /* FIXME: don't use the TLLI but the 0xFFFF unassigned? */
+ lle = lle_alloc(msgb_tlli(msg), llhp.sapi);
+ } else {
+ LOGP(DLLC, LOGL_NOTICE,
+ "unknown TLLI/SAPI: Silently dropping\n");
+ return 0;
+ }
}
/* Update LLE's (BVCI, NSEI) tuple */