LAPDm: Correctly count expiry of T200 during estabishment/release
After T200 expires N200+1 times, the link establishment or relase
fails. The counting must be performed prior check.
Related: OS#5970
Change-Id: Icf44e26420fc91312e7c8972a2f3ed475e42fc48
diff --git a/src/isdn/lapd_core.c b/src/isdn/lapd_core.c
index 6475cb0..5674c66 100644
--- a/src/isdn/lapd_core.c
+++ b/src/isdn/lapd_core.c
@@ -593,6 +593,8 @@
switch (dl->state) {
case LAPD_STATE_SABM_SENT:
/* 5.4.1.3 */
+ /* increment re-transmission counter */
+ dl->retrans_ctr++;
if (dl->retrans_ctr >= dl->n200_est_rel + 1) {
/* flush tx and send buffers */
lapd_dl_flush_tx(dl);
@@ -611,13 +613,13 @@
}
/* retransmit SABM command */
lapd_send_resend(dl);
- /* increment re-transmission counter */
- dl->retrans_ctr++;
/* restart T200 (PH-READY-TO-SEND) */
lapd_start_t200(dl);
break;
case LAPD_STATE_DISC_SENT:
/* 5.4.4.3 */
+ /* increment re-transmission counter */
+ dl->retrans_ctr++;
if (dl->retrans_ctr >= dl->n200_est_rel + 1) {
/* send MDL ERROR INIDCATION to L3 */
mdl_error(MDL_CAUSE_T200_EXPIRED, &dl->lctx);
@@ -635,8 +637,6 @@
}
/* retransmit DISC command */
lapd_send_resend(dl);
- /* increment re-transmission counter */
- dl->retrans_ctr++;
/* restart T200 (PH-READY-TO-SEND) */
lapd_start_t200(dl);
break;