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authorNeels Hofmeyr <neels@hofmeyr.de>2021-08-02 02:04:02 +0200
committerNeels Hofmeyr <nhofmeyr@sysmocom.de>2022-03-04 00:32:05 +0100
commit0a67e55835ea12bb6f20f03f62f8e6629e8820e4 (patch)
tree88a31f822400b011a1b3062e1dcc673394223a79 /src/osmo-bsc/bsc_subscr_conn_fsm.c
parente458501850adc80a5fcb6a99deac9b493fa0d799 (diff)
fix gscon clear 1/n: store clear cause in gscon
Allow returning a context sensitive cause instead of a hardcoded one in gscon pre_term(). Also, the conn->cause is needed to move message dispatch to an "onenter" function in patch I234b2a754d0c98031056981823cdbc187e977741. I Split this part off as a separate patch for better readability. Related: OS#5337 Change-Id: Ib6432746040899129d1d73ae8dc59add2d88a915
Diffstat (limited to 'src/osmo-bsc/bsc_subscr_conn_fsm.c')
-rw-r--r--src/osmo-bsc/bsc_subscr_conn_fsm.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/osmo-bsc/bsc_subscr_conn_fsm.c b/src/osmo-bsc/bsc_subscr_conn_fsm.c
index 2140c9ba9..ff742a267 100644
--- a/src/osmo-bsc/bsc_subscr_conn_fsm.c
+++ b/src/osmo-bsc/bsc_subscr_conn_fsm.c
@@ -144,6 +144,7 @@ static void gscon_bssmap_clear(struct gsm_subscriber_connection *conn,
struct msgb *resp;
int rc;
+ conn->clear_cause = cause;
if (conn->rx_clear_command) {
LOGPFSML(conn->fi, LOGL_DEBUG, "Not sending BSSMAP CLEAR REQUEST, already got CLEAR COMMAND from MSC\n");
@@ -976,9 +977,7 @@ static void gscon_pre_term(struct osmo_fsm_inst *fi, enum osmo_fsm_term_cause ca
}
LOGPFSML(fi, LOGL_DEBUG, "Releasing all lchans (if any) because this conn is terminating\n");
- /* when things go smoothly, the lchan should have been released before FSM instance termination. So if this is
- * necessary it's probably "abnormal". */
- gscon_release_lchans(conn, true, GSM48_RR_CAUSE_ABNORMAL_UNSPEC);
+ gscon_release_lchans(conn, true, bsc_gsm48_rr_cause_from_gsm0808_cause(conn->clear_cause));
/* drop pending messages */
gscon_dtap_queue_flush(conn, 0);
@@ -1057,6 +1056,9 @@ struct gsm_subscriber_connection *bsc_subscr_con_allocate(struct gsm_network *ne
INIT_LLIST_HEAD(&conn->hodec2.penalty_timers);
conn->sccp.conn_id = -1;
+ /* Default clear cause (on RR translates to GSM48_RR_CAUSE_ABNORMAL_UNSPEC) */
+ conn->clear_cause = GSM0808_CAUSE_EQUIPMENT_FAILURE;
+
/* don't allocate from 'conn' context, as gscon_cleanup() will call talloc_free(conn) before
* libosmocore will call talloc_free(conn->fi), i.e. avoid use-after-free during cleanup */
conn->fi = osmo_fsm_inst_alloc(&gscon_fsm, net, conn, LOGL_DEBUG, NULL);