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nat: Only send DLCX when we have send a CRCX to the BSC on this endpoint

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This commit is contained in:
Holger Hans Peter Freyther
2010-04-22 20:12:13 +08:00
parent 9d56d0c45b
commit 959bbcf0e7
2 changed files with 4 additions and 1 deletions
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1
openbsc/include/openbsc/bsc_nat.h
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@@ -112,6 +112,7 @@ struct sccp_connections {
struct sccp_source_reference remote_ref;
/* GSM audio handling. That is 32 * multiplex + ts */
int crcx;
int msc_timeslot;
int bsc_timeslot;
};

4
openbsc/src/nat/bsc_mgcp_utils.c
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@@ -147,12 +147,13 @@ void bsc_mgcp_init(struct sccp_connections *con)
{
con->msc_timeslot = -1;
con->bsc_timeslot = -1;
con->crcx = 0;
}
void bsc_mgcp_dlcx(struct sccp_connections *con)
{
/* send a DLCX down the stream */
if (con->bsc_timeslot != -1) {
if (con->bsc_timeslot != -1 && con->crcx) {
int endp = mgcp_timeslot_to_endpoint(0, con->msc_timeslot);
bsc_mgcp_send_dlcx(con->bsc, endp);
bsc_mgcp_free_endpoint(con->bsc->nat, endp);
@@ -247,6 +248,7 @@ int bsc_mgcp_policy_cb(struct mgcp_config *cfg, int endpoint, int state, const c
}
/* send the message and a fake MDCX for force sending of a dummy packet */
sccp->crcx = 1;
bsc_write(sccp->bsc, bsc_msg, NAT_IPAC_PROTO_MGCP);
bsc_mgcp_send_mdcx(sccp->bsc, mgcp_endp);
return MGCP_POLICY_DEFER;