[lchan] Keep track which SAPIs has been established with the BTS
Keep track of which SAPIs have been established either by the
BTS (from the MS) or by us. This can be used by the on-waves
BSC code to figure out if a new request should be made.
diff --git a/openbsc/src/abis_rsl.c b/openbsc/src/abis_rsl.c
index a4764f5..acd41dd 100644
--- a/openbsc/src/abis_rsl.c
+++ b/openbsc/src/abis_rsl.c
@@ -1294,6 +1294,7 @@
case RSL_MT_EST_IND:
DEBUGPC(DRLL, "ESTABLISH INDICATION\n");
/* lchan is established, stop T3101 */
+ msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_MS;
bsc_del_timer(&msg->lchan->T3101);
if (msgb_l2len(msg) >
sizeof(struct abis_rsl_common_hdr) + sizeof(*rllh) &&
@@ -1304,12 +1305,14 @@
break;
case RSL_MT_EST_CONF:
DEBUGPC(DRLL, "ESTABLISH CONFIRM\n");
+ msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_NET;
rll_indication(msg->lchan, rllh->link_id,
BSC_RLLR_IND_EST_CONF);
break;
case RSL_MT_REL_IND:
/* BTS informs us of having received DISC from MS */
DEBUGPC(DRLL, "RELEASE INDICATION\n");
+ msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_UNUSED;
rll_indication(msg->lchan, rllh->link_id,
BSC_RLLR_IND_REL_IND);
/* we can now releae the channel on the BTS/Abis side */
@@ -1321,6 +1324,7 @@
/* BTS informs us of having received UA from MS,
* in response to DISC that we've sent earlier */
DEBUGPC(DRLL, "RELEASE CONFIRMATION\n");
+ msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_UNUSED;
/* we can now releae the channel on the BTS/Abis side */
/* FIXME: officially we need to start T3111 and wait for
* some grace period */