laforge has submitted this change. (
https://gerrit.osmocom.org/c/osmo-bsc/+/26612 )
Change subject: fix gscon clear 1/n: store clear cause in gscon
......................................................................
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
---
M include/osmocom/bsc/gsm_data.h
M src/osmo-bsc/bsc_subscr_conn_fsm.c
2 files changed, 7 insertions(+), 3 deletions(-)
Approvals:
laforge: Looks good to me, but someone else must approve
fixeria: Looks good to me, approved
pespin: Looks good to me, but someone else must approve
Jenkins Builder: Verified
diff --git a/include/osmocom/bsc/gsm_data.h b/include/osmocom/bsc/gsm_data.h
index 238b2f7..4e26ec1 100644
--- a/include/osmocom/bsc/gsm_data.h
+++ b/include/osmocom/bsc/gsm_data.h
@@ -404,6 +404,8 @@
bool last_eutran_plmn_valid; /* Is information stored in field below available? */
struct osmo_plmn_id last_eutran_plmn;
} fast_return;
+
+ enum gsm0808_cause clear_cause;
};
diff --git a/src/osmo-bsc/bsc_subscr_conn_fsm.c b/src/osmo-bsc/bsc_subscr_conn_fsm.c
index 2140c9b..ff742a2 100644
--- a/src/osmo-bsc/bsc_subscr_conn_fsm.c
+++ b/src/osmo-bsc/bsc_subscr_conn_fsm.c
@@ -144,6 +144,7 @@
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 @@
}
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 @@
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);
--
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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: Ib6432746040899129d1d73ae8dc59add2d88a915
Gerrit-Change-Number: 26612
Gerrit-PatchSet: 2
Gerrit-Owner: neels <nhofmeyr(a)sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de>
Gerrit-Reviewer: laforge <laforge(a)osmocom.org>
Gerrit-Reviewer: pespin <pespin(a)sysmocom.de>
Gerrit-MessageType: merged