diff options
| -rw-r--r-- | epan/dissectors/packet-bssap.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/epan/dissectors/packet-bssap.c b/epan/dissectors/packet-bssap.c index ac8fdcca9c..88ee341a84 100644 --- a/epan/dissectors/packet-bssap.c +++ b/epan/dissectors/packet-bssap.c @@ -2133,11 +2133,16 @@ dissect_bssap_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) * If octet_1 == 0x00 and octet_2 == length(tvb) - 2 * or if octet_1 == 0x01 and octet_3 == length(tvb) - 3 * then we'll assume it is a bssap packet + * If octet_1 == 0x00 a further check is done + * to differentiate a BSSMAP BLOCK message from a + * RANAP DirectTransfer (under certain conditions) */ switch (tvb_get_guint8(tvb, 0)) { case 0x00: if (tvb_get_guint8(tvb, 1) != (tvb_length(tvb) - 2)) { return(FALSE); } + if (tvb_get_guint8(tvb, 2) == 0x40 && tvb_get_guint8(tvb, 3) != 0x01) { + return(FALSE); } break; case 0x01: |