When MAC address length is zero, assume it is a broadcast. Updated the MS/TP to understand this.

2014-11-02 05:27:14 +00:00
parent cab93e9db4
commit 3fca74bcfb
9 changed files with 41 additions and 21 deletions
@@ -161,7 +161,12 @@ int dlmstp_send_pdu(
            pkt->buffer[i] = pdu[i];
        }
        pkt->length = pdu_len;
-        pkt->destination_mac = dest->mac[0];
+        if (dest && dest->mac_len) {
+            pkt->destination_mac = dest->mac[0];
+        } else {
+            /* mac_len = 0 is a broadcast address */
+            pkt->destination_mac = MSTP_BROADCAST_ADDRESS;
+        }
        bytes_sent = pdu_len;
    }