diff options
Diffstat (limited to 'src/lib/protocols/eaq.c')
-rw-r--r-- | src/lib/protocols/eaq.c | 59 |
1 files changed, 33 insertions, 26 deletions
diff --git a/src/lib/protocols/eaq.c b/src/lib/protocols/eaq.c index 96ecacdde..3929b4ef6 100644 --- a/src/lib/protocols/eaq.c +++ b/src/lib/protocols/eaq.c @@ -24,12 +24,18 @@ http://www.brasilbandalarga.com.br */ + +#include "ndpi_protocol_ids.h" + +#ifdef NDPI_PROTOCOL_EAQ + +#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_EAQ + #include "ndpi_api.h" #define EAQ_DEFAULT_PORT 6000 #define EAQ_DEFAULT_SIZE 16 -#ifdef NDPI_PROTOCOL_EAQ static void ndpi_int_eaq_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_EAQ, NDPI_PROTOCOL_UNKNOWN); @@ -40,33 +46,34 @@ void ndpi_search_eaq(struct ndpi_detection_module_struct *ndpi_struct, struct nd struct ndpi_packet_struct *packet = &flow->packet; u_int16_t sport = ntohs(packet->udp->source), dport = ntohs(packet->udp->dest); - if((packet->payload_packet_len != EAQ_DEFAULT_SIZE) - || ((sport != EAQ_DEFAULT_PORT) && (dport != EAQ_DEFAULT_PORT))) { - exclude_eaq: - NDPI_LOG(NDPI_PROTOCOL_EAQ, ndpi_struct, NDPI_LOG_DEBUG, "Exclude eaq.\n"); - NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_EAQ); - return; - } - - if(packet->udp != NULL) { - u_int32_t seq = (packet->payload[0] * 1000) + (packet->payload[1] * 100) + (packet->payload[2] * 10) + packet->payload[3]; - - if(flow->l4.udp.eaq_pkt_id == 0) - flow->l4.udp.eaq_sequence = seq; - else { - if((flow->l4.udp.eaq_sequence == seq) || ((flow->l4.udp.eaq_sequence+1) == seq)) { - ; /* Looks good */ - } else - goto exclude_eaq; - } + NDPI_LOG_DBG(ndpi_struct, "search eaq\n"); + + do { + if( (packet->payload_packet_len != EAQ_DEFAULT_SIZE) || + ((sport != EAQ_DEFAULT_PORT) && (dport != EAQ_DEFAULT_PORT)) ) + break; + + if(packet->udp != NULL) { + u_int32_t seq = (packet->payload[0] * 1000) + (packet->payload[1] * 100) + (packet->payload[2] * 10) + packet->payload[3]; + + if(flow->l4.udp.eaq_pkt_id == 0) + flow->l4.udp.eaq_sequence = seq; + else { + if( (flow->l4.udp.eaq_sequence != seq) && + ((flow->l4.udp.eaq_sequence+1) != seq)) break; + } - if(++flow->l4.udp.eaq_pkt_id == 4) { - /* We have collected enough packets so we assume it's EAQ */ - NDPI_LOG(NDPI_PROTOCOL_EAQ, ndpi_struct, NDPI_LOG_DEBUG, "found eaq.\n"); - ndpi_int_eaq_add_connection(ndpi_struct, flow); + if(++flow->l4.udp.eaq_pkt_id == 4) { + /* We have collected enough packets so we assume it's EAQ */ + NDPI_LOG_INFO(ndpi_struct, "found eaq\n"); + ndpi_int_eaq_add_connection(ndpi_struct, flow); + return; + } } - } else - goto exclude_eaq; + } while(0); + + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + } |