[sccp] Make it optional to send data on a SCCP Connection Refuse
This can be used to send a Location Updating Reject down to the
BSC when it is clear that a subscriber is not allowed.
diff --git a/openbsc/src/sccp/sccp.c b/openbsc/src/sccp/sccp.c
index 35589dc..f7c31e8 100644
--- a/openbsc/src/sccp/sccp.c
+++ b/openbsc/src/sccp/sccp.c
@@ -638,7 +638,7 @@
connection->state_cb(connection, old_state);
}
-struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause)
+struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *inp, int length)
{
struct msgb *msgb;
struct sccp_connection_refused *ref;
@@ -660,6 +660,13 @@
ref->cause = cause;
ref->optional_start = 1;
+ if (inp) {
+ data = msgb_put(msgb, 1 + 1 + length);
+ data[0] = SCCP_PNC_DATA;
+ data[1] = length;
+ memcpy(&data[2], inp, length);
+ }
+
data = msgb_put(msgb, 1);
data[0] = SCCP_PNC_END_OF_OPTIONAL;
return msgb;
@@ -667,7 +674,7 @@
static int _sccp_send_refuse(struct sccp_source_reference *src_ref, int cause)
{
- struct msgb *msgb = sccp_create_refuse(src_ref, cause);
+ struct msgb *msgb = sccp_create_refuse(src_ref, cause, NULL, 0);
if (!msgb)
return -1;