aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--src/libmsc/a_iface.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/libmsc/a_iface.c b/src/libmsc/a_iface.c
index 9a7dcd023..91a2b6a3e 100644
--- a/src/libmsc/a_iface.c
+++ b/src/libmsc/a_iface.c
@@ -148,6 +148,19 @@ static int a_iface_tx_bssap(const struct ran_conn *conn, struct msgb *msg)
OSMO_ASSERT(conn->a.scu);
LOGPCONN(conn, LOGL_DEBUG, "N-DATA.req(%s)\n", msgb_hexdump_l3(msg));
+
+ /* some consistency checks to ensure we don't send invalid length */
+ switch (msg->l3h[0]) {
+ case BSSAP_MSG_DTAP:
+ OSMO_ASSERT(msgb_l3len(msg) == msg->l3h[2] + 3);
+ break;
+ case BSSAP_MSG_BSS_MANAGEMENT:
+ OSMO_ASSERT(msgb_l3len(msg) == msg->l3h[1] + 2);
+ break;
+ default:
+ break;
+ }
+
return osmo_sccp_tx_data_msg(conn->a.scu, conn->a.conn_id, msg);
}