gsm_04_11_gsup.c: fix broken reference counting for vsub
This change is similar to I5540556b1c75f6873883e46b78656f31fc1ef186.
In gsm411_gsup_rx() we do call vlr_subscr_find_by_imsi(), which
increases subscriber's reference count by one using the function
name as the token. However, we never release this token, so the
reference count grows on every received GSUP FORWARD-SM message.
Change-Id: Ic729beb5f94cbbfbb251bc9ab66a5e7b799286c0
diff --git a/src/libmsc/gsm_04_11_gsup.c b/src/libmsc/gsm_04_11_gsup.c
index 331092a..2abfc92 100644
--- a/src/libmsc/gsm_04_11_gsup.c
+++ b/src/libmsc/gsm_04_11_gsup.c
@@ -287,8 +287,10 @@
int gsm411_gsup_rx(struct gsup_client_mux *gcm, void *data, const struct osmo_gsup_message *gsup_msg)
{
struct gsm_network *net = (struct gsm_network *) data;
- struct vlr_subscr *vsub = vlr_subscr_find_by_imsi(net->vlr, gsup_msg->imsi, __func__);
+ struct vlr_subscr *vsub;
+ int rc;
+ vsub = vlr_subscr_find_by_imsi(net->vlr, gsup_msg->imsi, __func__);
if (!vsub) {
LOGP(DLSMS, LOGL_ERROR, "Rx %s for unknown subscriber, rejecting\n",
osmo_gsup_message_type_name(gsup_msg->message_type));
@@ -303,16 +305,21 @@
case OSMO_GSUP_MSGT_READY_FOR_SM_ERROR:
case OSMO_GSUP_MSGT_READY_FOR_SM_RESULT:
DEBUGP(DMSC, "Routed to GSM 04.11 MO handler\n");
- return gsm411_gsup_mo_handler(net, vsub, gsup_msg);
+ rc = gsm411_gsup_mo_handler(net, vsub, gsup_msg);
+ break;
/* GSM 04.11 code implementing MT SMS */
case OSMO_GSUP_MSGT_MT_FORWARD_SM_REQUEST:
DEBUGP(DMSC, "Routed to GSM 04.11 MT handler\n");
- return gsm411_gsup_mt_handler(net, vsub, gsup_msg);
+ rc = gsm411_gsup_mt_handler(net, vsub, gsup_msg);
+ break;
default:
LOGP(DMM, LOGL_ERROR, "No handler found for %s, dropping message...\n",
osmo_gsup_message_type_name(gsup_msg->message_type));
- return -GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL;
+ rc = -GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL;
}
+
+ vlr_subscr_put(vsub, __func__);
+ return rc;
}