[mgcp] Prepare the in process MGCP handling by adding callbacks
* Call a callback when the endpoint was created, modified or deleted. This
can be used by the BSC MUX to send a MGCP packet over TCP to the right
the BSC to allocate the endpoint there with the right data, or it can be
used in the BSC to send the right commands to the BTS.
diff --git a/openbsc/src/mgcp/mgcp_protocol.c b/openbsc/src/mgcp/mgcp_protocol.c
index 763dadb..d096157 100644
--- a/openbsc/src/mgcp/mgcp_protocol.c
+++ b/openbsc/src/mgcp/mgcp_protocol.c
@@ -162,6 +162,9 @@
static int handle_delete_con(int fd, struct msgb *msg, struct sockaddr_in *source);
static int handle_modify_con(int fd, struct msgb *msg, struct sockaddr_in *source);
+static mgcp_change change_cb;
+static void *change_cb_data;
+
static int generate_call_id()
{
int i;
@@ -661,6 +664,9 @@
LOGP(DMGCP, LOGL_NOTICE, "Creating endpoint on: 0x%x CI: %u port: %u\n",
ENDPOINT_NUMBER(endp), endp->ci, endp->rtp_port);
+ if (change_cb)
+ change_cb(ENDPOINT_NUMBER(endp), MGCP_ENDP_CRCX, endp->rtp_port, change_cb_data);
+
return send_with_sdp(fd, endp, "CRCX", trans_id, source);
error:
LOGP(DMGCP, LOGL_ERROR, "Malformed line: %s on 0x%x with: line_start: %d %d\n",
@@ -752,6 +758,8 @@
/* modify */
LOGP(DMGCP, LOGL_NOTICE, "Modified endpoint on: 0x%x Server: %s:%u\n",
ENDPOINT_NUMBER(endp), inet_ntoa(endp->remote), endp->net_rtp);
+ if (change_cb)
+ change_cb(ENDPOINT_NUMBER(endp), MGCP_ENDP_MDCX, endp->rtp_port, change_cb_data);
return send_with_sdp(fd, endp, "MDCX", trans_id, source);
error:
@@ -814,6 +822,8 @@
}
endp->net_rtp = endp->net_rtcp = endp->bts_rtp = endp->bts_rtcp = 0;
+ if (change_cb)
+ change_cb(ENDPOINT_NUMBER(endp), MGCP_ENDP_DLCX, endp->rtp_port, change_cb_data);
return send_response(fd, 250, "DLCX", trans_id, source);
@@ -1117,3 +1127,9 @@
return !!forward_ip;
}
+
+void mgcp_set_change_cb(mgcp_change cb, void *data)
+{
+ change_cb = cb;
+ change_cb_data = data;
+}