diff options
Diffstat (limited to 'src/lib/protocols/skype.c')
| -rw-r--r-- | src/lib/protocols/skype.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/lib/protocols/skype.c b/src/lib/protocols/skype.c index 8ada5d997..e758fd5b8 100644 --- a/src/lib/protocols/skype.c +++ b/src/lib/protocols/skype.c @@ -32,11 +32,17 @@ static void ndpi_check_skype(struct ndpi_detection_module_struct *ndpi_struct, s // const u_int8_t *packet_payload = packet->payload; u_int32_t payload_len = packet->payload_packet_len; - if(flow->host_server_name[0] != '\0') + /* No need to do ntohl() with 0xFFFFFFFF */ + if(packet->iph && (packet->iph->daddr == 0xFFFFFFFF /* 255.255.255.255 */)) { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); return; + } + if(flow->host_server_name[0] != '\0') + return; + // UDP check - if(packet->udp != NULL) { + if(packet->udp != NULL) { flow->l4.udp.skype_packet_id++; if(flow->l4.udp.skype_packet_id < 5) { @@ -52,6 +58,7 @@ static void ndpi_check_skype(struct ndpi_detection_module_struct *ndpi_struct, s if(((payload_len == 3) && ((packet->payload[2] & 0x0F)== 0x0d)) || ((payload_len >= 16) && (packet->payload[0] != 0x30) /* Avoid invalid SNMP detection */ + && (packet->payload[0] != 0x0) /* Avoid invalid CAPWAP detection */ && (packet->payload[2] == 0x02))) { if(is_port(sport, dport, 8801)) |