bsc: Handle MGCP coming from Osmo Extensions header
Start using the new Osmo Extension header and forward MGCP
to the MGCP GW.
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_msc.c b/openbsc/src/osmo-bsc/osmo_bsc_msc.c
index 135779e..91d9f73 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_msc.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_msc.c
@@ -188,6 +188,24 @@
return ret;
}
+static void osmo_ext_handle(struct osmo_msc_data *msc, struct msgb *msg)
+{
+ struct ipaccess_head *hh;
+ struct ipaccess_head_ext *hh_ext;
+
+ hh = (struct ipaccess_head *) msg->data;
+ hh_ext = (struct ipaccess_head_ext *) hh->data;
+ if (msg->len < sizeof(*hh) + sizeof(*hh_ext)) {
+ LOGP(DMSC, LOGL_ERROR, "Packet too short for extended header.\n");
+ return;
+ }
+
+ msg->l2h = hh_ext->data;
+ if (hh_ext->proto == IPAC_PROTO_EXT_MGCP)
+ mgcp_forward(msc, msg);
+
+}
+
static int ipaccess_a_fd_cb(struct bsc_fd *bfd)
{
int error;
@@ -225,6 +243,8 @@
sccp_system_incoming(msg);
} else if (hh->proto == IPAC_PROTO_MGCP_OLD) {
mgcp_forward(data, msg);
+ } else if (hh->proto == IPAC_PROTO_OSMO) {
+ osmo_ext_handle(data, msg);
}
msgb_free(msg);