lchan: Speculative "fix" for error and late reply
Looking at the code it seemed possible that a channel would
transition from BROKEN to NONE. Or worse from NONE to BROKEN.
Start the timer _after_ the channel has been released.
diff --git a/openbsc/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index 5d40794..984fa7e 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -52,6 +52,7 @@
};
static int rsl_send_imm_assignment(struct gsm_lchan *lchan);
+static void error_timeout_cb(void *data);
static void send_lchan_signal(int sig_no, struct gsm_lchan *lchan,
struct gsm_meas_rep *resp)
@@ -64,9 +65,15 @@
static void do_lchan_free(struct gsm_lchan *lchan)
{
- /* we have an error timer pending to release that */
- if (lchan->state != LCHAN_S_REL_ERR)
+ /* We start the error timer to make the channel available again */
+ if (lchan->state == LCHAN_S_REL_ERR) {
+ lchan->error_timer.data = lchan;
+ lchan->error_timer.cb = error_timeout_cb;
+ osmo_timer_schedule(&lchan->error_timer,
+ lchan->ts->trx->bts->network->T3111 + 2, 0);
+ } else {
rsl_lchan_set_state(lchan, LCHAN_S_NONE);
+ }
lchan_free(lchan);
}
@@ -679,8 +686,6 @@
DEBUGP(DRSL, "%s RF Channel Release CMD due error %d\n", gsm_lchan_name(lchan), error);
if (error) {
- struct e1inp_sign_link *sign_link = msg->dst;
-
/*
* FIXME: GSM 04.08 gives us two options for the abnormal
* chanel release. This can be either like in the non-existent
@@ -708,10 +713,6 @@
* TODO: start T3109 now.
*/
rsl_lchan_set_state(lchan, LCHAN_S_REL_ERR);
- lchan->error_timer.data = lchan;
- lchan->error_timer.cb = error_timeout_cb;
- osmo_timer_schedule(&lchan->error_timer,
- sign_link->trx->bts->network->T3111 + 2, 0);
}
/* Start another timer or assume the BTS sends a ACK/NACK? */