static void ndpi_search_icecast_tcp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
u_int8_t i;
NDPI_LOG(NDPI_PROTOCOL_ICECAST, ndpi_struct, NDPI_LOG_DEBUG, "search icecast.\n");
if ((packet->payload_packet_len < 500 &&
packet->payload_packet_len >= 7 && ndpi_mem_cmp(packet->payload, "SOURCE ", 7) == 0)
|| flow->l4.tcp.icecast_stage) {
ndpi_parse_packet_line_info_unix(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_ICECAST, ndpi_struct, NDPI_LOG_DEBUG, "Icecast lines=%d\n", packet->parsed_unix_lines);
for (i = 0; i < packet->parsed_unix_lines; i++) {
if (packet->unix_line[i].ptr != NULL && packet->unix_line[i].len > 4
&& ndpi_mem_cmp(packet->unix_line[i].ptr, "ice-", 4) == 0) {
NDPI_LOG(NDPI_PROTOCOL_ICECAST, ndpi_struct, NDPI_LOG_DEBUG, "Icecast detected.\n");
ndpi_int_icecast_add_connection(ndpi_struct, flow);
return;
}
}
if (packet->parsed_unix_lines < 1 && !flow->l4.tcp.icecast_stage) {
flow->l4.tcp.icecast_stage = 1;
return;
}
}
#ifdef NDPI_PROTOCOL_HTTP
if (NDPI_FLOW_PROTOCOL_EXCLUDED(ndpi_struct, flow, NDPI_PROTOCOL_HTTP)) {
goto icecast_exclude;
}
#endif
if (packet->packet_direction == flow->setup_packet_direction && flow->packet_counter < 10) {
return;
}
if (packet->packet_direction != flow->setup_packet_direction) {
/* server answer, now test Server for Icecast */
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->server_line.ptr != NULL && packet->server_line.len > NDPI_STATICSTRING_LEN("Icecast") &&
memcmp(packet->server_line.ptr, "Icecast", NDPI_STATICSTRING_LEN("Icecast")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_ICECAST, ndpi_struct, NDPI_LOG_DEBUG, "Icecast detected.\n");
/* TODO maybe store the previous protocol type as subtype?
* e.g. ogg or mpeg
*/
ndpi_int_icecast_add_connection(ndpi_struct, flow);
return;
}
}
icecast_exclude:
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_ICECAST);
NDPI_LOG(NDPI_PROTOCOL_ICECAST, ndpi_struct, NDPI_LOG_DEBUG, "Icecast excluded.\n");
}
static u_int8_t is_special_aimini_host(struct ndpi_int_one_line_struct host_line)
{
if (host_line.ptr != NULL && host_line.len >= NDPI_STATICSTRING_LEN("X.X.X.X.aimini.net")) {
if ((get_u_int32_t(host_line.ptr, 0) & htonl(0x00ff00ff)) == htonl(0x002e002e) &&
(get_u_int32_t(host_line.ptr, 4) & htonl(0x00ff00ff)) == htonl(0x002e002e) &&
memcmp(&host_line.ptr[8], "aimini.net", NDPI_STATICSTRING_LEN("aimini.net")) == 0) {
return 1;
}
}
return 0;
}
void ndpi_search_quake(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
// struct ndpi_id_struct *src=ndpi_struct->src;
// struct ndpi_id_struct *dst=ndpi_struct->dst;
if ((packet->payload_packet_len == 14
&& get_u_int16_t(packet->payload, 0) == 0xffff && memcmp(&packet->payload[2], "getInfo", 7) == 0)
|| (packet->payload_packet_len == 17
&& get_u_int16_t(packet->payload, 0) == 0xffff && memcmp(&packet->payload[2], "challenge", 9) == 0)
|| (packet->payload_packet_len > 20
&& packet->payload_packet_len < 30
&& get_u_int16_t(packet->payload, 0) == 0xffff && memcmp(&packet->payload[2], "getServers", 10) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake IV detected.\n");
ndpi_int_quake_add_connection(ndpi_struct, flow);
return;
}
/* Quake III/Quake Live */
if (packet->payload_packet_len == 15 && get_u_int32_t(packet->payload, 0) == 0xffffffff
&& memcmp(&packet->payload[4], "getinfo", NDPI_STATICSTRING_LEN("getinfo")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake III Arena/Quake Live detected.\n");
ndpi_int_quake_add_connection(ndpi_struct, flow);
return;
}
if (packet->payload_packet_len == 16 && get_u_int32_t(packet->payload, 0) == 0xffffffff
&& memcmp(&packet->payload[4], "getchallenge", NDPI_STATICSTRING_LEN("getchallenge")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake III Arena/Quake Live detected.\n");
ndpi_int_quake_add_connection(ndpi_struct, flow);
return;
}
if (packet->payload_packet_len > 20 && packet->payload_packet_len < 30
&& get_u_int32_t(packet->payload, 0) == 0xffffffff
&& memcmp(&packet->payload[4], "getservers", NDPI_STATICSTRING_LEN("getservers")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake III Arena/Quake Live detected.\n");
ndpi_int_quake_add_connection(ndpi_struct, flow);
return;
}
/* ports for startup packet:
Quake I 26000 (starts with 0x8000)
Quake II 27910
Quake III 27960 (increases with each player)
Quake IV 27650
Quake World 27500
Quake Wars ?????
*/
NDPI_LOG(NDPI_PROTOCOL_QUAKE, ndpi_struct, NDPI_LOG_DEBUG, "Quake excluded.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_QUAKE);
}
static u_int8_t ndpi_int_find_xmsn(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
if (packet->parsed_lines > 3) {
u_int16_t i;
for (i = 2; i < packet->parsed_lines; i++) {
if (packet->line[i].ptr != NULL && packet->line[i].len > NDPI_STATICSTRING_LEN("X-MSN") &&
memcmp(packet->line[i].ptr, "X-MSN", NDPI_STATICSTRING_LEN("X-MSN")) == 0) {
return 1;
}
}
}
return 0;
}
void ndpi_search_justin_twitch(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
register u_int16_t ii;
static u_int16_t flag=0;
u_int16_t dport=0,sport=0;
if(packet->tcp!=NULL){
sport = ntohs(packet->tcp->source), dport = ntohs(packet->tcp->dest);
if((sport==1935||dport==1935)&&flag==1){
ndpi_int_justin_add_connection(ndpi_struct, flow);
return ;
}
if ((packet->payload_packet_len > NDPI_STATICSTRING_LEN("POST /") &&
memcmp(packet->payload, "POST /", NDPI_STATICSTRING_LEN("POST /")) == 0)||
(packet->payload_packet_len > NDPI_STATICSTRING_LEN("GET /") &&
memcmp(packet->payload, "GET /", NDPI_STATICSTRING_LEN("GET /")) == 0)){
ndpi_parse_packet_line_info(ndpi_struct, flow);
if(packet->host_line.ptr!=NULL&&packet->host_line.len== NDPI_STATICSTRING_LEN("www.twitch.tv")&&
memcmp(packet->host_line.ptr,"www.twitch.tv",NDPI_STATICSTRING_LEN("www.twitch.tv"))==0){
flow->l4.tcp.justin_twitch_stage=1;
flag=1;
ndpi_int_justin_add_connection(ndpi_struct, flow);
return ;
}
}
}
for(ii=0;ii<packet->payload_packet_len; ++ii){
if(packet->payload[ii]=='a'){
if(memcmp(&packet->payload[ii + 1], "pi.twitch.tv",12)==0){
NDPI_LOG(NDPI_PROTOCOL_JUSTIN_TWITCH, ndpi_struct, NDPI_LOG_DEBUG, "twitch detected.\n");
ndpi_int_justin_add_connection(ndpi_struct, flow);
return ;
}
}
if(packet->payload[ii]=='t'){
if(memcmp(&packet->payload[ii + 1], "witch.tv", 8)==0){
NDPI_LOG(NDPI_PROTOCOL_JUSTIN_TWITCH, ndpi_struct, NDPI_LOG_DEBUG, "twitch detected.\n");
ndpi_int_justin_add_connection(ndpi_struct, flow);
return ;
}
}
}
for (ii = 0; ii < packet->payload_packet_len ; ++ii){
if(packet->payload[ii]=='j'){
if (memcmp(&packet->payload[ii + 1], "ustin.tv/", 9)==0){
NDPI_LOG(NDPI_PROTOCOL_JUSTIN_TWITCH, ndpi_struct, NDPI_LOG_DEBUG, "justin detected.\n");
ndpi_int_justin_add_connection(ndpi_struct, flow);
return ;
}
}
}
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_JUSTIN_TWITCH);
}
void ndpi_search_meebo(struct ndpi_detection_module_struct
*ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
// struct ndpi_id_struct *src=ndpi_struct->src;
// struct ndpi_id_struct *dst=ndpi_struct->dst;
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "search meebo.\n");
/* catch audio/video flows which are flash (rtmp) */
if (
#ifdef NDPI_CONTENT_FLASH
packet->detected_protocol_stack[0] == NDPI_CONTENT_FLASH
#else
(packet->tcp->source == htons(1935) || packet->tcp->dest == htons(1935))
#endif
) {
/* TODO: once we have an amf decoder we can more directly access the rtmp fields
* if so, we may also exclude earlier */
if (packet->payload_packet_len > 900) {
if (memcmp(packet->payload + 116, "tokbox/", NDPI_STATICSTRING_LEN("tokbox/")) == 0 ||
memcmp(packet->payload + 316, "tokbox/", NDPI_STATICSTRING_LEN("tokbox/")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "found meebo/tokbox flash flow.\n");
ndpi_int_meebo_add_connection(ndpi_struct, flow);
return;
}
}
if (flow->packet_counter < 16 && flow->packet_direction_counter[flow->setup_packet_direction] < 6) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "need next packet.\n");
return;
}
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "exclude meebo.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_MEEBO);
return;
}
if ((
#ifdef NDPI_PROTOCOL_HTTP
packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
#endif
((packet->payload_packet_len > 3 && memcmp(packet->payload, "GET ", 4) == 0)
|| (packet->payload_packet_len > 4 && memcmp(packet->payload, "POST ", 5) == 0))
) && flow->packet_counter == 1) {
u_int8_t host_or_referer_match = 0;
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->host_line.ptr != NULL
&& packet->host_line.len >= 9
&& memcmp(&packet->host_line.ptr[packet->host_line.len - 9], "meebo.com", 9) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "Found Meebo host\n");
host_or_referer_match = 1;
} else if (packet->host_line.ptr != NULL
&& packet->host_line.len >= 10
&& memcmp(&packet->host_line.ptr[packet->host_line.len - 10], "tokbox.com", 10) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "Found tokbox host\n");
/* set it to 2 to avoid having plain tokbox traffic detected as meebo */
host_or_referer_match = 2;
} else if (packet->host_line.ptr != NULL && packet->host_line.len >= NDPI_STATICSTRING_LEN("74.114.28.110")
&& memcmp(&packet->host_line.ptr[packet->host_line.len - NDPI_STATICSTRING_LEN("74.114.28.110")],
"74.114.28.110", NDPI_STATICSTRING_LEN("74.114.28.110")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "Found meebo IP\n");
host_or_referer_match = 1;
} else if (packet->referer_line.ptr != NULL &&
packet->referer_line.len >= NDPI_STATICSTRING_LEN("http://www.meebo.com/") &&
memcmp(packet->referer_line.ptr, "http://www.meebo.com/",
NDPI_STATICSTRING_LEN("http://www.meebo.com/")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "Found meebo referer\n");
host_or_referer_match = 1;
} else if (packet->referer_line.ptr != NULL &&
packet->referer_line.len >= NDPI_STATICSTRING_LEN("http://mee.tokbox.com/") &&
memcmp(packet->referer_line.ptr, "http://mee.tokbox.com/",
NDPI_STATICSTRING_LEN("http://mee.tokbox.com/")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "Found tokbox referer\n");
host_or_referer_match = 1;
} else if (packet->referer_line.ptr != NULL &&
packet->referer_line.len >= NDPI_STATICSTRING_LEN("http://74.114.28.110/") &&
memcmp(packet->referer_line.ptr, "http://74.114.28.110/",
NDPI_STATICSTRING_LEN("http://74.114.28.110/")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "Found meebo IP referer\n");
host_or_referer_match = 1;
}
if (host_or_referer_match) {
if (host_or_referer_match == 1) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG,
"Found Meebo traffic based on host/referer\n");
ndpi_int_meebo_add_connection(ndpi_struct, flow);
return;
}
}
}
if (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_MEEBO) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG,
"in case that ssl meebo has been detected return.\n");
return;
}
if (flow->packet_counter < 5 && packet->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_SSL) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "ssl not yet excluded. need next packet.\n");
return;
}
#ifdef NDPI_CONTENT_FLASH
if (flow->packet_counter < 5 && packet->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN &&
!NDPI_FLOW_PROTOCOL_EXCLUDED(ndpi_struct, flow, NDPI_CONTENT_FLASH)) {
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "flash not yet excluded. need next packet.\n");
return;
}
#endif
NDPI_LOG(NDPI_PROTOCOL_MEEBO, ndpi_struct, NDPI_LOG_DEBUG, "exclude meebo.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_MEEBO);
}
static u_int8_t search_ftp(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
u_int8_t current_ftp_code = 0;
// struct ndpi_id_struct *src=ndpi_struct->src;
// struct ndpi_id_struct *dst=ndpi_struct->dst;
/* initiate client direction flag */
if (flow->packet_counter == 1) {
if (flow->l4.tcp.seen_syn) {
flow->l4.tcp.ftp_client_direction =
flow->setup_packet_direction;
} else {
/* no syn flag seen so guess */
if (packet->payload_packet_len > 0) {
if (packet->payload[0] >= '0'
&& packet->payload[0] <= '9') {
/* maybe server side */
flow->l4.tcp.ftp_client_direction =
1 - packet->packet_direction;
} else {
flow->l4.tcp.ftp_client_direction =
packet->packet_direction;
}
}
}
}
if (packet->packet_direction == flow->l4.tcp.ftp_client_direction) {
if (packet->payload_packet_len > NDPI_STATICSTRING_LEN("USER ")
&&
(memcmp
(packet->payload, "USER ",
NDPI_STATICSTRING_LEN("USER ")) == 0
|| memcmp(packet->payload, "user ",
NDPI_STATICSTRING_LEN("user ")) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_FTP, ndpi_struct, NDPI_LOG_DEBUG,
"FTP: found USER command\n");
flow->l4.tcp.ftp_codes_seen |= FTP_USER_CMD;
current_ftp_code = FTP_USER_CMD;
} else if (packet->payload_packet_len >=
NDPI_STATICSTRING_LEN("FEAT")
&&
(memcmp
(packet->payload, "FEAT",
NDPI_STATICSTRING_LEN("FEAT")) == 0
|| memcmp(packet->payload, "feat",
NDPI_STATICSTRING_LEN("feat")) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_FTP, ndpi_struct, NDPI_LOG_DEBUG,
"FTP: found FEAT command\n");
flow->l4.tcp.ftp_codes_seen |= FTP_FEAT_CMD;
current_ftp_code = FTP_FEAT_CMD;
} else if (!ndpi_int_check_possible_ftp_command(packet)) {
return 0;
}
} else {
if (packet->payload_packet_len > NDPI_STATICSTRING_LEN("220 ")
&&
(memcmp
(packet->payload, "220 ",
NDPI_STATICSTRING_LEN("220 ")) == 0
|| memcmp(packet->payload, "220-",
NDPI_STATICSTRING_LEN("220-")) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_FTP, ndpi_struct, NDPI_LOG_DEBUG,
"FTP: found 220 reply code\n");
flow->l4.tcp.ftp_codes_seen |= FTP_220_CODE;
current_ftp_code = FTP_220_CODE;
} else if (packet->payload_packet_len >
NDPI_STATICSTRING_LEN("331 ")
&&
(memcmp
(packet->payload, "331 ",
NDPI_STATICSTRING_LEN("331 ")) == 0
|| memcmp(packet->payload, "331-",
NDPI_STATICSTRING_LEN("331-")) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_FTP, ndpi_struct, NDPI_LOG_DEBUG,
"FTP: found 331 reply code\n");
flow->l4.tcp.ftp_codes_seen |= FTP_331_CODE;
current_ftp_code = FTP_331_CODE;
} else if (packet->payload_packet_len >
NDPI_STATICSTRING_LEN("211 ")
&&
(memcmp
(packet->payload, "211 ",
NDPI_STATICSTRING_LEN("211 ")) == 0
|| memcmp(packet->payload, "211-",
NDPI_STATICSTRING_LEN("211-")) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_FTP, ndpi_struct, NDPI_LOG_DEBUG,
"FTP: found 211reply code\n");
flow->l4.tcp.ftp_codes_seen |= FTP_211_CODE;
current_ftp_code = FTP_211_CODE;
} else if (!ndpi_int_check_possible_ftp_reply(packet)) {
if ((flow->l4.tcp.ftp_codes_seen & FTP_CODES) == 0 ||
(!ndpi_int_check_possible_ftp_continuation_reply
(packet))) {
return 0;
}
}
}
if ((flow->l4.tcp.ftp_codes_seen & FTP_COMMANDS) != 0
&& (flow->l4.tcp.ftp_codes_seen & FTP_CODES) != 0) {
NDPI_LOG(NDPI_PROTOCOL_FTP, ndpi_struct, NDPI_LOG_DEBUG,
"FTP detected\n");
ndpi_int_ftp_add_connection(ndpi_struct, flow);
return 1;
}
/* if no valid code has been seen for the first packets reject */
if (flow->l4.tcp.ftp_codes_seen == 0 && flow->packet_counter > 3)
return 0;
/* otherwise wait more packets, wait more for traffic on known ftp port */
if ((packet->packet_direction == flow->setup_packet_direction
&& packet->tcp && packet->tcp->dest == htons(21))
|| (packet->packet_direction != flow->setup_packet_direction
&& packet->tcp && packet->tcp->source == htons(21))) {
/* flow to known ftp port */
/* wait much longer if this was a 220 code, initial messages might be long */
if (current_ftp_code == FTP_220_CODE) {
if (flow->packet_counter > 40)
return 0;
} else {
if (flow->packet_counter > 20)
return 0;
}
} else {
/* wait much longer if this was a 220 code, initial messages might be long */
if (current_ftp_code == FTP_220_CODE) {
if (flow->packet_counter > 20)
return 0;
} else {
if (flow->packet_counter > 10)
return 0;
}
}
return 2;
}
static void ndpi_search_aimini(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
// struct ndpi_id_struct *src=ndpi_struct->src;
// struct ndpi_id_struct *dst=ndpi_struct->dst;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "search aimini.\n");
if (packet->udp != NULL) {
if (flow->l4.udp.aimini_stage == 0) {
if (packet->payload_packet_len == 64 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x010b) {
flow->l4.udp.aimini_stage = 1;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 1.\n");
return;
}
if (packet->payload_packet_len == 136
&& (ntohs(get_u_int16_t(packet->payload, 0)) == 0x01c9 || ntohs(get_u_int16_t(packet->payload, 0)) == 0x0165)) {
flow->l4.udp.aimini_stage = 4;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 4.\n");
return;
}
if (packet->payload_packet_len == 88 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0101) {
flow->l4.udp.aimini_stage = 7;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 7.\n");
return;
}
if (packet->payload_packet_len == 104 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0102) {
flow->l4.udp.aimini_stage = 10;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 10.\n");
return;
}
if (packet->payload_packet_len == 32 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x01ca) {
flow->l4.udp.aimini_stage = 13;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 13.\n");
return;
}
if (packet->payload_packet_len == 16 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x010c) {
flow->l4.udp.aimini_stage = 16;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 16.\n");
return;
}
}
/* first packet chronology: (len, value): (64, 0x010b), (>100, 0x0115), (16, 0x010c || 64, 0x010b || 88, 0x0115),
* (16, 0x010c || 64, 0x010b || >100, 0x0115)
*/
if (flow->l4.udp.aimini_stage == 1 && packet->payload_packet_len > 100
&& ntohs(get_u_int16_t(packet->payload, 0)) == 0x0115) {
flow->l4.udp.aimini_stage = 2;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 2.\n");
return;
}
if (flow->l4.udp.aimini_stage == 2 &&
((packet->payload_packet_len == 16 && get_u_int16_t(packet->payload, 0) == htons(0x010c)) ||
(packet->payload_packet_len == 64 && get_u_int16_t(packet->payload, 0) == htons(0x010b)) ||
(packet->payload_packet_len == 88 && get_u_int16_t(packet->payload, 0) == ntohs(0x0115)))) {
flow->l4.udp.aimini_stage = 3;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 3.\n");
return;
}
if (flow->l4.udp.aimini_stage == 3
&& ((packet->payload_packet_len == 16 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x010c)
|| (packet->payload_packet_len == 64 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x010b)
|| (packet->payload_packet_len > 100 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0115))) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "found aimini (64, 0x010b), (>300, 0x0115), "
"(16, 0x010c || 64, 0x010b), (16, 0x010c || 64, 0x010b || >100, 0x0115).\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* second packet chronology: (len, value): (136, 0x01c9), (136, 0x01c9),(136, 0x01c9),(136, 0x01c9 || 32, 0x01ca) */
if (flow->l4.udp.aimini_stage == 4 && packet->payload_packet_len == 136
&& (ntohs(get_u_int16_t(packet->payload, 0)) == 0x01c9 || ntohs(get_u_int16_t(packet->payload, 0)) == 0x0165)) {
flow->l4.udp.aimini_stage = 5;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 5.\n");
return;
}
if (flow->l4.udp.aimini_stage == 5 && (packet->payload_packet_len == 136
&& (ntohs(get_u_int16_t(packet->payload, 0)) == 0x01c9
|| ntohs(get_u_int16_t(packet->payload, 0)) == 0x0165))) {
flow->l4.udp.aimini_stage = 6;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 6.\n");
return;
}
if (flow->l4.udp.aimini_stage == 6 && ((packet->payload_packet_len == 136
&& ((ntohs(get_u_int16_t(packet->payload, 0)) == 0x0165)
|| ntohs(get_u_int16_t(packet->payload, 0)) == 0x01c9))
|| (packet->payload_packet_len == 32
&& ntohs(get_u_int16_t(packet->payload, 0)) == 0x01ca))) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"found aimini (136, 0x01c9), (136, 0x01c9)," "(136, 0x01c9),(136, 0x01c9 || 32, 0x01ca).\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* third packet chronology: (len, value): (88, 0x0101), (88, 0x0101),(88, 0x0101),(88, 0x0101) */
if (flow->l4.udp.aimini_stage == 7 && packet->payload_packet_len == 88
&& ntohs(get_u_int16_t(packet->payload, 0)) == 0x0101) {
flow->l4.udp.aimini_stage = 8;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 8.\n");
return;
}
if (flow->l4.udp.aimini_stage == 8
&& (packet->payload_packet_len == 88 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0101)) {
flow->l4.udp.aimini_stage = 9;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 9.\n");
return;
}
if (flow->l4.udp.aimini_stage == 9
&& (packet->payload_packet_len == 88 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0101)) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"found aimini (88, 0x0101), (88, 0x0101)," "(88, 0x0101),(88, 0x0101).\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* fourth packet chronology: (len, value): (104, 0x0102), (104, 0x0102), (104, 0x0102), (104, 0x0102) */
if (flow->l4.udp.aimini_stage == 10 && packet->payload_packet_len == 104
&& ntohs(get_u_int16_t(packet->payload, 0)) == 0x0102) {
flow->l4.udp.aimini_stage = 11;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 11.\n");
return;
}
if (flow->l4.udp.aimini_stage == 11
&& (packet->payload_packet_len == 104 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0102)) {
flow->l4.udp.aimini_stage = 12;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 12.\n");
return;
}
if (flow->l4.udp.aimini_stage == 12
&& ((packet->payload_packet_len == 104 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0102)
|| (packet->payload_packet_len == 32 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x01ca))) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"found aimini (104, 0x0102), (104, 0x0102), " "(104, 0x0102), (104, 0x0102).\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* fifth packet chronology (len, value): (32,0x01ca), (32,0x01ca), (32,0x01ca), ((136, 0x0166) || (32,0x01ca)) */
if (flow->l4.udp.aimini_stage == 13 && packet->payload_packet_len == 32
&& ntohs(get_u_int16_t(packet->payload, 0)) == 0x01ca) {
flow->l4.udp.aimini_stage = 14;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 14.\n");
return;
}
if (flow->l4.udp.aimini_stage == 14
&& ((packet->payload_packet_len == 32 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x01ca)
|| (packet->payload_packet_len == 136 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0166))) {
flow->l4.udp.aimini_stage = 15;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 15.\n");
return;
}
if (flow->l4.udp.aimini_stage == 15
&& ((packet->payload_packet_len == 136 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x0166)
|| (packet->payload_packet_len == 32 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x01ca))) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"found aimini (32,0x01ca), (32,0x01ca), (32,0x01ca), ((136, 0x0166)||(32,0x01ca)).\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* sixth packet chronology (len, value): (16, 0x010c), (16, 0x010c), (16, 0x010c), (16, 0x010c) */
if (flow->l4.udp.aimini_stage == 16 && packet->payload_packet_len == 16
&& ntohs(get_u_int16_t(packet->payload, 0)) == 0x010c) {
flow->l4.udp.aimini_stage = 17;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 17.\n");
return;
}
if (flow->l4.udp.aimini_stage == 17
&& (packet->payload_packet_len == 16 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x010c)) {
flow->l4.udp.aimini_stage = 18;
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "stage = 18.\n");
return;
}
if (flow->l4.udp.aimini_stage == 18
&& (packet->payload_packet_len == 16 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x010c)) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"found aimini (16, 0x010c), (16, 0x010c), (16, 0x010c), (16, 0x010c).\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
} else if (packet->tcp != NULL) {
if ((packet->payload_packet_len > NDPI_STATICSTRING_LEN("GET /player/") &&
(memcmp(packet->payload, "GET /player/", NDPI_STATICSTRING_LEN("GET /player/")) == 0)) ||
(packet->payload_packet_len > NDPI_STATICSTRING_LEN("GET /play/?fid=") &&
(memcmp(packet->payload, "GET /play/?fid=", NDPI_STATICSTRING_LEN("GET /play/?fid=")) == 0))) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "HTTP packet detected.\n");
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->host_line.ptr != NULL && packet->host_line.len > 11
&& (memcmp(&packet->host_line.ptr[packet->host_line.len - 11], ".aimini.net", 11) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "AIMINI HTTP traffic detected.\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
if (packet->payload_packet_len > 100) {
if (memcmp(packet->payload, "GET /", NDPI_STATICSTRING_LEN("GET /")) == 0) {
if (memcmp(&packet->payload[NDPI_STATICSTRING_LEN("GET /")], "play/",
NDPI_STATICSTRING_LEN("play/")) == 0 ||
memcmp(&packet->payload[NDPI_STATICSTRING_LEN("GET /")], "download/",
NDPI_STATICSTRING_LEN("download/")) == 0) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (is_special_aimini_host(packet->host_line) == 1) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"AIMINI HTTP traffic detected.\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
} else if (memcmp(packet->payload, "POST /", NDPI_STATICSTRING_LEN("POST /")) == 0) {
if (memcmp(&packet->payload[NDPI_STATICSTRING_LEN("POST /")], "upload/",
NDPI_STATICSTRING_LEN("upload/")) == 0) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (is_special_aimini_host(packet->host_line) == 1) {
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG,
"AIMINI HTTP traffic detected.\n");
ndpi_int_aimini_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
}
}
NDPI_LOG(NDPI_PROTOCOL_AIMINI, ndpi_struct, NDPI_LOG_DEBUG, "exclude aimini.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_AIMINI);
}
void ndpi_search_jabber_tcp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
u_int16_t x;
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_TRACE, "JABBER detection....\n");
/* search for jabber file transfer */
/* this part is working asymmetrically */
if (packet->tcp != NULL && packet->tcp->syn != 0 && packet->payload_packet_len == 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "check jabber syn\n");
if (src != NULL && src->jabber_file_transfer_port[0] != 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG,
"src jabber ft port set, ports are: %u, %u\n", ntohs(src->jabber_file_transfer_port[0]),
ntohs(src->jabber_file_transfer_port[1]));
if (((u_int32_t)
(packet->tick_timestamp - src->jabber_stun_or_ft_ts)) >= ndpi_struct->jabber_file_transfer_timeout) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "JABBER src stun timeout %u %u\n", src->jabber_stun_or_ft_ts,
packet->tick_timestamp);
src->jabber_file_transfer_port[0] = 0;
src->jabber_file_transfer_port[1] = 0;
} else if (src->jabber_file_transfer_port[0] == packet->tcp->dest
|| src->jabber_file_transfer_port[0] == packet->tcp->source
|| src->jabber_file_transfer_port[1] == packet->tcp->dest
|| src->jabber_file_transfer_port[1] == packet->tcp->source) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG,
"found jabber file transfer.\n");
ndpi_int_jabber_add_connection(ndpi_struct, flow,
NDPI_PROTOCOL_UNENCRYPED_JABBER);
}
}
if (dst != NULL && dst->jabber_file_transfer_port[0] != 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG,
"dst jabber ft port set, ports are: %u, %u\n", ntohs(dst->jabber_file_transfer_port[0]),
ntohs(dst->jabber_file_transfer_port[1]));
if (((u_int32_t)
(packet->tick_timestamp - dst->jabber_stun_or_ft_ts)) >= ndpi_struct->jabber_file_transfer_timeout) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "JABBER dst stun timeout %u %u\n", dst->jabber_stun_or_ft_ts,
packet->tick_timestamp);
dst->jabber_file_transfer_port[0] = 0;
dst->jabber_file_transfer_port[1] = 0;
} else if (dst->jabber_file_transfer_port[0] == packet->tcp->dest
|| dst->jabber_file_transfer_port[0] == packet->tcp->source
|| dst->jabber_file_transfer_port[1] == packet->tcp->dest
|| dst->jabber_file_transfer_port[1] == packet->tcp->source) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG,
"found jabber file transfer.\n");
ndpi_int_jabber_add_connection(ndpi_struct, flow,
NDPI_PROTOCOL_UNENCRYPED_JABBER);
}
}
return;
}
if (packet->tcp != 0 && packet->payload_packet_len == 0) {
return;
}
/* this part parses a packet and searches for port=. it works asymmetrically. */
if (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_UNENCRYPED_JABBER) {
u_int16_t lastlen;
u_int16_t j_port = 0;
/* check for google jabber voip connections ... */
/* need big packet */
if (packet->payload_packet_len < 100) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "packet too small, return.\n");
return;
}
/* need message to or type for file-transfer */
if (memcmp(packet->payload, "<iq from=\"", 8) == 0 || memcmp(packet->payload, "<iq from=\'", 8) == 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "JABBER <iq from=\".\n");
lastlen = packet->payload_packet_len - 11;
for (x = 10; x < lastlen; x++) {
if (packet->payload[x] == 'p') {
if (memcmp(&packet->payload[x], "port=", 5) == 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "port=\n");
if (src != NULL) {
src->jabber_stun_or_ft_ts = packet->tick_timestamp;
}
if (dst != NULL) {
dst->jabber_stun_or_ft_ts = packet->tick_timestamp;
}
x += 6;
j_port = ntohs_ndpi_bytestream_to_number(&packet->payload[x], packet->payload_packet_len, &x);
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "JABBER port : %u\n", ntohs(j_port));
if (src != NULL) {
if (src->jabber_file_transfer_port[0] == 0 || src->jabber_file_transfer_port[0] == j_port) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "src->jabber_file_transfer_port[0] = j_port = %u;\n",
ntohs(j_port));
src->jabber_file_transfer_port[0] = j_port;
} else {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "src->jabber_file_transfer_port[1] = j_port = %u;\n",
ntohs(j_port));
src->jabber_file_transfer_port[1] = j_port;
}
}
if (dst != NULL) {
if (dst->jabber_file_transfer_port[0] == 0 || dst->jabber_file_transfer_port[0] == j_port) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "dst->jabber_file_transfer_port[0] = j_port = %u;\n",
ntohs(j_port));
dst->jabber_file_transfer_port[0] = j_port;
} else {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "dst->jabber_file_transfer_port[1] = j_port = %u;\n",
ntohs(j_port));
dst->jabber_file_transfer_port[1] = j_port;
}
}
}
}
}
} else if (memcmp(packet->payload, "<iq to=\"", 8) == 0 || memcmp(packet->payload, "<iq to=\'", 8) == 0
|| memcmp(packet->payload, "<iq type=", 9) == 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "JABBER <iq to=\"/type=\"\n");
lastlen = packet->payload_packet_len - 21;
for (x = 8; x < lastlen; x++) {
/* invalid character */
if (packet->payload[x] < 32 || packet->payload[x] > 127) {
return;
}
if (packet->payload[x] == '@') {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "JABBER @\n");
break;
}
}
if (x >= lastlen) {
return;
}
lastlen = packet->payload_packet_len - 10;
for (; x < lastlen; x++) {
if (packet->payload[x] == 'p') {
if (memcmp(&packet->payload[x], "port=", 5) == 0) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG, "port=\n");
if (src != NULL) {
src->jabber_stun_or_ft_ts = packet->tick_timestamp;
}
if (dst != NULL) {
dst->jabber_stun_or_ft_ts = packet->tick_timestamp;
}
x += 6;
j_port = ntohs_ndpi_bytestream_to_number(&packet->payload[x], packet->payload_packet_len, &x);
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "JABBER port : %u\n", ntohs(j_port));
if (src != NULL && src->jabber_voice_stun_used_ports < JABBER_MAX_STUN_PORTS - 1) {
if (packet->payload[5] == 'o') {
src->jabber_voice_stun_port[src->jabber_voice_stun_used_ports++]
= j_port;
} else {
if (src->jabber_file_transfer_port[0] == 0
|| src->jabber_file_transfer_port[0] == j_port) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG,
"src->jabber_file_transfer_port[0] = j_port = %u;\n", ntohs(j_port));
src->jabber_file_transfer_port[0] = j_port;
} else {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "src->jabber_file_transfer_port[1] = j_port = %u;\n",
ntohs(j_port));
src->jabber_file_transfer_port[1] = j_port;
}
}
}
if (dst != NULL && dst->jabber_voice_stun_used_ports < JABBER_MAX_STUN_PORTS - 1) {
if (packet->payload[5] == 'o') {
dst->jabber_voice_stun_port[dst->jabber_voice_stun_used_ports++]
= j_port;
} else {
if (dst->jabber_file_transfer_port[0] == 0
|| dst->jabber_file_transfer_port[0] == j_port) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_DEBUG,
"dst->jabber_file_transfer_port[0] = j_port = %u;\n", ntohs(j_port));
dst->jabber_file_transfer_port[0] = j_port;
} else {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "dst->jabber_file_transfer_port[1] = j_port = %u;\n",
ntohs(j_port));
dst->jabber_file_transfer_port[1] = j_port;
}
}
}
return;
}
}
}
}
return;
}
/* search for jabber here */
/* this part is working asymmetrically */
if ((packet->payload_packet_len > 13 && memcmp(packet->payload, "<?xml version=", 14) == 0)
|| (packet->payload_packet_len >= NDPI_STATICSTRING_LEN("<stream:stream ")
&& memcmp(packet->payload, "<stream:stream ", NDPI_STATICSTRING_LEN("<stream:stream ")) == 0)) {
int start = packet->payload_packet_len-13;
if(ndpi_strnstr((const char *)&packet->payload[13], "xmlns:stream='http://etherx.jabber.org/streams'", start)
|| ndpi_strnstr((const char *)&packet->payload[13], "xmlns:stream=\"http://etherx.jabber.org/streams\"", start)) {
/* Protocol family */
ndpi_int_jabber_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_UNENCRYPED_JABBER);
/* search for subprotocols */
check_content_type_and_change_protocol(ndpi_struct, flow, 13);
return;
}
}
if (flow->packet_counter < 3) {
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct,
NDPI_LOG_DEBUG, "packet_counter: %u\n", flow->packet_counter);
return;
}
NDPI_LOG(NDPI_PROTOCOL_UNENCRYPED_JABBER, ndpi_struct, NDPI_LOG_TRACE, "JABBER Excluded.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_UNENCRYPED_JABBER);
#ifdef NDPI_PROTOCOL_TRUPHONE
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_TRUPHONE);
#endif
}
static void ndpi_search_oscar_tcp_connect(struct ndpi_detection_module_struct
*ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
if (packet->payload_packet_len >= 10 && packet->payload[0] == 0x2a) {
/* if is a oscar connection, 10 bytes long */
/* OSCAR Connection :: Connection detected at initial packets only
* +----+----+------+------+---------------+
* |0x2a|Code|SeqNum|PktLen|ProtcolVersion |
* +----+----+------+------+---------------+
* Code 1 Byte : 0x01 Oscar Connection
* SeqNum and PktLen are 2 Bytes each and ProtcolVersion: 0x00000001
* */
if (get_u_int8_t(packet->payload, 1) == 0x01 && get_u_int16_t(packet->payload, 4) == htons(packet->payload_packet_len - 6)
&& get_u_int32_t(packet->payload, 6) == htonl(0x0000000001)) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR Connection FOUND \n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* OSCAR IM
* +----+----+------+------+----------+-----------+
* |0x2a|Code|SeqNum|PktLen|FNACfamily|FNACsubtype|
* +----+----+------+------+----------+-----------+
* Code 1 Byte : 0x02 SNAC Header Code;
* SeqNum and PktLen are 2 Bytes each
* FNACfamily 2 Byte : 0x0004 IM Messaging
* FNACEsubtype 2 Byte : 0x0006 IM Outgoing Message, 0x000c IM Message Acknowledgment
* */
if (packet->payload[1] == 0x02
&& ntohs(get_u_int16_t(packet->payload, 4)) >=
packet->payload_packet_len - 6 && get_u_int16_t(packet->payload, 6) == htons(0x0004)
&& (get_u_int16_t(packet->payload, 8) == htons(0x0006)
|| get_u_int16_t(packet->payload, 8) == htons(0x000c))) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR IM Detected \n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
/* detect http connections */
if (packet->payload_packet_len >= 18) {
if ((packet->payload[0] == 'P') && (memcmp(packet->payload, "POST /photo/upload", 18) == 0)) {
NDPI_PARSE_PACKET_LINE_INFO(ndpi_struct, flow, packet);
if (packet->host_line.len >= 18 && packet->host_line.ptr != NULL) {
if (memcmp(packet->host_line.ptr, "lifestream.aol.com", 18) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG,
"OSCAR over HTTP found, POST method\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
}
if (packet->payload_packet_len > 40) {
if ((packet->payload[0] == 'G') && (memcmp(packet->payload, "GET /", 5) == 0)) {
if ((memcmp(&packet->payload[5], "aim/fetchEvents?aimsid=", 23) == 0) ||
(memcmp(&packet->payload[5], "aim/startSession?", 17) == 0) ||
(memcmp(&packet->payload[5], "aim/gromit/aim_express", 22) == 0) ||
(memcmp(&packet->payload[5], "b/ss/aolwpaim", 13) == 0) ||
(memcmp(&packet->payload[5], "hss/storage/aimtmpshare", 23) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR over HTTP found, GET /aim/\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if ((memcmp(&packet->payload[5], "aim", 3) == 0) || (memcmp(&packet->payload[5], "im", 2) == 0)) {
NDPI_PARSE_PACKET_LINE_INFO(ndpi_struct, flow, packet);
if (packet->user_agent_line.len > 15 && packet->user_agent_line.ptr != NULL &&
((memcmp(packet->user_agent_line.ptr, "mobileAIM/", 10) == 0) ||
(memcmp(packet->user_agent_line.ptr, "ICQ/", 4) == 0) ||
(memcmp(packet->user_agent_line.ptr, "mobileICQ/", 10) == 0) ||
(memcmp(packet->user_agent_line.ptr, "AIM%20Free/", NDPI_STATICSTRING_LEN("AIM%20Free/")) == 0) ||
(memcmp(packet->user_agent_line.ptr, "AIM/", 4) == 0))) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR over HTTP found\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
NDPI_PARSE_PACKET_LINE_INFO(ndpi_struct, flow, packet);
if (packet->referer_line.ptr != NULL && packet->referer_line.len >= 22) {
if (memcmp(&packet->referer_line.ptr[packet->referer_line.len - NDPI_STATICSTRING_LEN("WidgetMain.swf")],
"WidgetMain.swf", NDPI_STATICSTRING_LEN("WidgetMain.swf")) == 0) {
u_int16_t i;
for (i = 0; i < (packet->referer_line.len - 22); i++) {
if (packet->referer_line.ptr[i] == 'a') {
if (memcmp(&packet->referer_line.ptr[i + 1], "im/gromit/aim_express", 21) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG,
"OSCAR over HTTP found : aim/gromit/aim_express\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
}
}
}
if (memcmp(packet->payload, "CONNECT ", 8) == 0) {
if (memcmp(packet->payload, "CONNECT login.icq.com:443 HTTP/1.", 33) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR ICQ-HTTP FOUND\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (memcmp(packet->payload, "CONNECT login.oscar.aol.com:5190 HTTP/1.", 40) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR AIM-HTTP FOUND\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
if (packet->payload_packet_len > 43
&& memcmp(packet->payload, "GET http://http.proxy.icq.com/hello HTTP/1.", 43) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR ICQ-HTTP PROXY FOUND\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (packet->payload_packet_len > 46
&& memcmp(packet->payload, "GET http://aimhttp.oscar.aol.com/hello HTTP/1.", 46) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR AIM-HTTP PROXY FOUND\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (packet->payload_packet_len > 5 && get_u_int32_t(packet->payload, 0) == htonl(0x05010003)) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "Maybe OSCAR Picturetransfer\n");
return;
}
if (packet->payload_packet_len == 10 && get_u_int32_t(packet->payload, 0) == htonl(0x05000001) &&
get_u_int32_t(packet->payload, 4) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "Maybe OSCAR Picturetransfer\n");
return;
}
if (packet->payload_packet_len >= 70 &&
memcmp(&packet->payload[packet->payload_packet_len - 26],
"\x67\x00\x65\x00\x74\x00\x43\x00\x61\x00\x74\x00\x61\x00\x6c\x00\x6f\x00\x67", 19) == 0) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR PICTURE TRANSFER\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
if (NDPI_SRC_OR_DST_HAS_PROTOCOL(src, dst, NDPI_PROTOCOL_OSCAR) != 0) {
if (flow->packet_counter == 1
&&
((packet->payload_packet_len == 9
&& memcmp(packet->payload, "\x00\x09\x00\x00\x83\x01\xc0\x00\x00", 9) == 0)
|| (packet->payload_packet_len == 13
&& (memcmp(packet->payload, "\x00\x0d\x00\x87\x01\xc0", 6) == 0
|| memcmp(packet->payload, "\x00\x0d\x00\x87\x01\xc1", 6) == 0)))) {
flow->oscar_video_voice = 1;
}
if (flow->oscar_video_voice && ntohs(get_u_int16_t(packet->payload, 0)) == packet->payload_packet_len
&& packet->payload[2] == 0x00 && packet->payload[3] == 0x00) {
}
if (packet->payload_packet_len >= 70 && ntohs(get_u_int16_t(packet->payload, 4)) == packet->payload_packet_len) {
if (memcmp(packet->payload, "OFT", 3) == 0 &&
((packet->payload[3] == '3' && ((memcmp(&packet->payload[4], "\x01\x00\x01\x01", 4) == 0)
|| (memcmp(&packet->payload[6], "\x01\x01\x00", 3) == 0)))
|| (packet->payload[3] == '2' && ((memcmp(&packet->payload[6], "\x01\x01", 2)
== 0)
)))) {
// FILE TRANSFER PATTERN:: OFT3 or OFT2
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR FILE TRANSFER\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
if (memcmp(packet->payload, "ODC2", 4) == 0 && memcmp(&packet->payload[6], "\x00\x01\x00\x06", 4) == 0) {
//PICTURE TRANSFER PATTERN EXMAPLE::
//4f 44 43 32 00 4c 00 01 00 06 00 00 00 00 00 00 ODC2.L..........
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR PICTURE TRANSFER\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
if (packet->payload_packet_len > 40 && (memcmp(&packet->payload[2], "\x04\x4a\x00", 3) == 0)
&& (memcmp(&packet->payload[6], "\x00\x00", 2) == 0)
&& packet->payload[packet->payload_packet_len - 15] == 'F'
&& packet->payload[packet->payload_packet_len - 12] == 'L'
&& (memcmp(&packet->payload[packet->payload_packet_len - 6], "DEST", 4) == 0)
&& (memcmp(&packet->payload[packet->payload_packet_len - 2], "\x00\x00", 2) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_OSCAR, ndpi_struct, NDPI_LOG_DEBUG, "OSCAR PICTURE TRANSFER\n");
ndpi_int_oscar_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
if (ntohs(packet->tcp->dest) == 443 || ntohs(packet->tcp->source) == 443) {
flow->oscar_ssl_voice_stage = 1;
}
return;
}
}
if (flow->packet_counter < 3 && packet->payload_packet_len > 11 && (memcmp(packet->payload, "\x00\x37\x04\x4a", 4)
|| memcmp(packet->payload, "\x00\x0a\x04\x4a",
4))) {
return;
}
if (packet->detected_protocol_stack[0] != NDPI_PROTOCOL_OSCAR) {
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_OSCAR);
return;
}
}
static void ndpi_search_msn_tcp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
u_int16_t plen;
u_int16_t status = 0;
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "search msn tcp.\n");
#ifdef NDPI_PROTOCOL_SSL
if (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_SSL) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "msn ssl ft test\n");
if (flow->packet_counter < 10) {
}
if (flow->packet_counter == 7 && packet->payload_packet_len > 300) {
if (memcmp(packet->payload + 24, "MSNSLP", 6) == 0
|| (get_u_int32_t(packet->payload, 0) == htonl(0x30000000) && get_u_int32_t(packet->payload, 4) == 0x00000000)) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "detected MSN File Transfer, ifdef ssl.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
if (flow->packet_counter >= 5 && flow->packet_counter <= 10 && (get_u_int32_t(packet->payload, 0) == htonl(0x18000000)
&& get_u_int32_t(packet->payload, 4) == 0x00000000)) {
flow->l4.tcp.msn_ssl_ft++;
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"increased msn ft ssl stage to: %u at packet nr: %u\n", flow->l4.tcp.msn_ssl_ft,
flow->packet_counter);
if (flow->l4.tcp.msn_ssl_ft == 2) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"detected MSN File Transfer, ifdef ssl 2.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
}
return;
}
}
#endif
/* we detect the initial connection only ! */
/* match: "VER " ..... "CVR" x 0x0d 0x0a
* len should be small, lets say less than 100 bytes
* x is now "0", but can be increased
*/
/* now we have a look at the first packet only. */
if (flow->packet_counter == 1
#ifdef NDPI_PROTOCOL_SSL
|| ((packet->detected_protocol_stack[0] == NDPI_PROTOCOL_SSL) && flow->packet_counter <= 3)
#endif
) {
/* this part is working asymmetrically */
if (packet->payload_packet_len > 32 && (packet->payload[0] == 0x02 || packet->payload[0] == 0x00)
&& (ntohl(get_u_int32_t(packet->payload, 8)) == 0x2112a442 || ntohl(get_u_int32_t(packet->payload, 4)) == 0x2112a442)
&& ((ntohl(get_u_int32_t(packet->payload, 24)) == 0x000f0004 && ntohl(get_u_int32_t(packet->payload, 28)) == 0x72c64bc6)
|| (ntohl(get_u_int32_t(packet->payload, 20)) == 0x000f0004
&& ntohl(get_u_int32_t(packet->payload, 24)) == 0x72c64bc6))) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN in packets that also contain voice.messenger.live.com.\n");
/* TODO this is an alternative pattern for video detection */
/* if (packet->payload_packet_len > 100 &&
get_u_int16_t(packet->payload, 86) == htons(0x05dc)) { */
if (packet->payload_packet_len > 101 && packet->payload[101] == 0x02) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
} else {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
}
return;
}
/* this case works asymmetrically */
if (packet->payload_packet_len > 10 && packet->payload_packet_len < 100) {
if (get_u_int8_t(packet->payload, packet->payload_packet_len - 2) == 0x0d
&& get_u_int8_t(packet->payload, packet->payload_packet_len - 1) == 0x0a) {
/* The MSNP string is used in XBOX clients. */
if (memcmp(packet->payload, "VER ", 4) == 0) {
if (memcmp(&packet->payload[packet->payload_packet_len - 6], "CVR",
3) == 0 || memcmp(&packet->payload[packet->payload_packet_len - 8], "MSNP", 4) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN by pattern VER...CVR/MSNP ODOA.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
if (memcmp(&packet->payload[4], "MSNFT", 5) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN FT by pattern VER MSNFT...0d0a.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
}
}
if (
#ifdef NDPI_PROTOCOL_HTTP
packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
#endif
memcmp(packet->payload, "GET ", NDPI_STATICSTRING_LEN("GET ")) == 0 ||
memcmp(packet->payload, "POST ", NDPI_STATICSTRING_LEN("POST ")) == 0) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->user_agent_line.ptr != NULL &&
packet->user_agent_line.len > NDPI_STATICSTRING_LEN("Messenger/") &&
memcmp(packet->user_agent_line.ptr, "Messenger/", NDPI_STATICSTRING_LEN("Messenger/")) == 0) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
#ifdef NDPI_PROTOCOL_HTTP
/* we have to examine two http packets */
if (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP) {
}
#endif
/* not seen this pattern in any trace */
/* now test for http login, at least 100 a bytes packet */
if (packet->payload_packet_len > 100) {
if (
#ifdef NDPI_PROTOCOL_HTTP
packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
#endif
memcmp(packet->payload, "POST http://", 12) == 0) {
/* scan packet if not already done... */
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->content_line.ptr != NULL &&
((packet->content_line.len == NDPI_STATICSTRING_LEN("application/x-msn-messenger") &&
memcmp(packet->content_line.ptr, "application/x-msn-messenger",
NDPI_STATICSTRING_LEN("application/x-msn-messenger")) == 0) ||
(packet->content_line.len >= NDPI_STATICSTRING_LEN("text/x-msnmsgr") &&
memcmp(packet->content_line.ptr, "text/x-msnmsgr",
NDPI_STATICSTRING_LEN("text/x-msnmsgr")) == 0))) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN by pattern POST http:// .... application/x-msn-messenger.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
/* now test for http login that uses a gateway, at least 400 a bytes packet */
/* for this case the asymmetric detection is asym (1) */
if (packet->payload_packet_len > 400) {
if ((
#ifdef NDPI_PROTOCOL_HTTP
packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
#endif
(memcmp(packet->payload, "POST ", 5) == 0))) {
u_int16_t c;
if (memcmp(&packet->payload[5], "http://", 7) == 0) {
/*
* We are searching for a paten "POST http://gateway.messenger.hotmail.com/gateway/gateway.dll" or
* "POST http://<some ip addres here like 172.0.0.0>/gateway/gateway.dll"
* POST http:// is 12 byte so we are searching for 13 to 70 byte for this paten.
*/
for (c = 13; c < 50; c++) {
if (memcmp(&packet->payload[c], "/", 1) == 0) {
if (memcmp(&packet->payload[c], "/gateway/gateway.dll", 20) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found pattern http://.../gateway/gateway.ddl.\n");
status = 1;
break;
}
}
}
} else if ((memcmp(&packet->payload[5], "/gateway/gateway.dll", 20) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found pattern http://.../gateway/gateway.ddl.\n");
status = 1;
}
}
if (status) {
u_int16_t a;
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->content_line.ptr != NULL
&&
((packet->content_line.len == 23
&& memcmp(packet->content_line.ptr, "text/xml; charset=utf-8", 23) == 0)
||
(packet->content_line.len == 24
&& memcmp(packet->content_line.ptr, "text/html; charset=utf-8", 24) == 0)
||
(packet->content_line.len == 33
&& memcmp(packet->content_line.ptr, "application/x-www-form-urlencoded", 33) == 0)
)) {
if ((src != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, NDPI_PROTOCOL_MSN)
!= 0) || (dst != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask,
NDPI_PROTOCOL_MSN)
!= 0)) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN with pattern text/xml; charset=utf-8.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
for (a = 0; a < packet->parsed_lines; a++) {
if (packet->line[a].len >= 4 &&
(memcmp(packet->line[a].ptr, "CVR ", 4) == 0
|| memcmp(packet->line[a].ptr, "VER ",
4) == 0 || memcmp(packet->line[a].ptr, "ANS ", 4) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN with pattern text/sml; charset0utf-8.\n");
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct,
NDPI_LOG_TRACE, "MSN xml CVS / VER / ANS found\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
}
}
/* asym (1) ; possibly occurs in symmetric cases also. */
if (flow->packet_counter <= 10 &&
(flow->packet_direction_counter[0] <= 2 || flow->packet_direction_counter[1] <= 2)
&& packet->payload_packet_len > 100) {
/* not necessary to check the length, because this has been done : >400. */
if (
#ifdef NDPI_PROTOCOL_HTTP
packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
#endif
(memcmp(packet->payload, "HTTP/1.0 200 OK", 15) == 0) ||
(memcmp(packet->payload, "HTTP/1.1 200 OK", 15) == 0)
) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->content_line.ptr != NULL &&
((packet->content_line.len == NDPI_STATICSTRING_LEN("application/x-msn-messenger") &&
memcmp(packet->content_line.ptr, "application/x-msn-messenger",
NDPI_STATICSTRING_LEN("application/x-msn-messenger")) == 0) ||
(packet->content_line.len >= NDPI_STATICSTRING_LEN("text/x-msnmsgr") &&
memcmp(packet->content_line.ptr, "text/x-msnmsgr",
NDPI_STATICSTRING_LEN("text/x-msnmsgr")) == 0))) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"HTTP/1.0 200 OK .... application/x-msn-messenger.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (ndpi_int_find_xmsn(ndpi_struct, flow) == 1) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "HTTP/1.0 200 OK .... X-MSN.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
/* did not find any trace with this pattern !!!!! */
/* now block proxy connection */
if (packet->payload_packet_len >= 42) {
if (memcmp(packet->payload, "CONNECT messenger.hotmail.com:1863 HTTP/1.", 42) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN with pattern CONNECT messenger.hotmail.com:1863 HTTP/1..\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
if (packet->payload_packet_len >= 18) {
if (memcmp(packet->payload, "USR ", 4) == 0 || memcmp(packet->payload, "ANS ", 4) == 0) {
/* now we must see a number */
const u_int16_t endlen = packet->payload_packet_len - 12;
plen = 4;
while (1) {
if (packet->payload[plen] == ' ') {
break;
}
if (packet->payload[plen] < '0' || packet->payload[plen] > '9') {
goto ndpi_msn_exclude;
}
plen++;
if (plen >= endlen) {
goto ndpi_msn_exclude;
}
}
while (plen < endlen) {
if (ndpi_check_for_email_address(ndpi_struct, flow, plen) != 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "found mail address\n");
break;
}
if (packet->payload_packet_len > plen + 1
&& (packet->payload[plen] < 20 || packet->payload[plen] > 128)) {
goto ndpi_msn_exclude;
}
plen++;
if (plen >= endlen) {
goto ndpi_msn_exclude;
}
}
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"found MSN with pattern USR/ANS ...mail_address.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
}
/* finished examining the first packet only. */
/* asym (1) ; possibly occurs in symmetric cases also. */
if (flow->packet_counter <= 10 &&
(flow->packet_direction_counter[0] <= 2 || flow->packet_direction_counter[1] <= 2) &&
packet->payload_packet_len > 100) {
/* not necessary to check the length, because this has been done : >400. */
if (
#ifdef NDPI_PROTOCOL_HTTP
packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
#endif
(memcmp(packet->payload, "HTTP/1.0 200 OK", 15) == 0) ||
(memcmp(packet->payload, "HTTP/1.1 200 OK", 15) == 0)
) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->content_line.ptr != NULL &&
((packet->content_line.len == NDPI_STATICSTRING_LEN("application/x-msn-messenger") &&
memcmp(packet->content_line.ptr, "application/x-msn-messenger",
NDPI_STATICSTRING_LEN("application/x-msn-messenger")) == 0) ||
(packet->content_line.len >= NDPI_STATICSTRING_LEN("text/x-msnmsgr") &&
memcmp(packet->content_line.ptr, "text/x-msnmsgr", NDPI_STATICSTRING_LEN("text/x-msnmsgr")) == 0))) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE,
"HTTP/1.0 200 OK .... application/x-msn-messenger.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (ndpi_int_find_xmsn(ndpi_struct, flow) == 1) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "HTTP/1.0 200 OK .... X-MSN.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
/* finished examining the secone packet only */
/* direct user connection (file transfer,...) */
if ((src != NULL && NDPI_COMPARE_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, NDPI_PROTOCOL_MSN) != 0)
|| (dst != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask, NDPI_PROTOCOL_MSN) != 0)) {
if (flow->packet_counter == 1 &&
packet->payload_packet_len > 12 && memcmp(packet->payload, "recipientid=", 12) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_DEBUG, "detected file transfer.\n");
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
/* MSN File Transfer of MSN 8.1 and 8.5
* first packet with length 4 and pattern 0x04000000
* second packet (in the same direction), with length 56 and pattern 0x00000000 from payload[16]
* third packet (in the opposite direction to 1 & 2), with length 4 and pattern 0x30000000
*/
if (flow->l4.tcp.msn_stage == 0) {
/* asymmetric detection to this pattern is asym (2) */
if ((packet->payload_packet_len == 4 || packet->payload_packet_len == 8)
&& get_u_int32_t(packet->payload, 0) == htonl(0x04000000)) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_DEBUG, "maybe first TCP MSN detected\n");
if (packet->payload_packet_len == 8 && get_u_int32_t(packet->payload, 4) == htonl(0x666f6f00)) {
flow->l4.tcp.msn_stage = 5 + packet->packet_direction;
return;
}
flow->l4.tcp.msn_stage = 1 + packet->packet_direction;
return;
}
/* asymmetric detection to this pattern is asym (2) */
} else if (flow->l4.tcp.msn_stage == 1 + packet->packet_direction) {
if (packet->payload_packet_len > 10 && get_u_int32_t(packet->payload, 0) == htonl(0x666f6f00)) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "MSN File Transfer detected 1\n");
return;
}
/* did not see this pattern in any trace */
if (packet->payload_packet_len == 56 && get_u_int32_t(packet->payload, 16) == 0) {
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_DEBUG, "maybe Second TCP MSN detected\n");
flow->l4.tcp.msn_stage = 3 + packet->packet_direction;
return;
}
} else if (flow->l4.tcp.msn_stage == 2 - packet->packet_direction
&& packet->payload_packet_len == 4 && get_u_int32_t(packet->payload, 0) == htonl(0x30000000)) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "MSN File Transfer detected 2\n");
return;
} else if ((flow->l4.tcp.msn_stage == 3 + packet->packet_direction)
|| (flow->l4.tcp.msn_stage == 4 - packet->packet_direction)) {
if (packet->payload_packet_len == 4 && get_u_int32_t(packet->payload, 0) == htonl(0x30000000)) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "MSN File Transfer detected 2\n");
return;
}
} else if (flow->l4.tcp.msn_stage == 6 - packet->packet_direction) {
if ((packet->payload_packet_len == 4) &&
(get_u_int32_t(packet->payload, 0) == htonl(0x10000000) || get_u_int32_t(packet->payload, 0) == htonl(0x30000000))) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "MSN File Transfer detected 3\n");
return;
}
} else if (flow->l4.tcp.msn_stage == 5 + packet->packet_direction) {
if ((packet->payload_packet_len == 20) && get_u_int32_t(packet->payload, 0) == htonl(0x10000000)) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "MSN File Transfer detected 3\n");
return;
}
}
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "msn 7.\n");
if (flow->packet_counter <= MAX_PACKETS_FOR_MSN) {
if (packet->tcp->source == htons(443)
|| packet->tcp->dest == htons(443)) {
if (packet->payload_packet_len > 300) {
if (memcmp(&packet->payload[40], "INVITE MSNMSGR", 14) == 0
|| memcmp(&packet->payload[56], "INVITE MSNMSGR", 14) == 0
|| memcmp(&packet->payload[172], "INVITE MSNMSGR", 14) == 0) {
ndpi_int_msn_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "MSN File Transfer detected 3\n");
return;
}
}
return;
}
/* For no
n port 443 flows exclude flow bitmask after first packet itself */
}
NDPI_LOG(NDPI_PROTOCOL_MSN, ndpi_struct, NDPI_LOG_TRACE, "exclude msn.\n");
ndpi_msn_exclude:
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_MSN);
}
static void ndpi_search_yahoo_tcp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
const struct ndpi_yahoo_header *yahoo = (struct ndpi_yahoo_header *) packet->payload;
if (packet->payload_packet_len == 0) {
return;
}
/* packet must be at least 20 bytes long */
if (packet->payload_packet_len >= 20
&& memcmp(yahoo->YMSG_str, "YMSG", 4) == 0 && ((packet->payload_packet_len - 20) == ntohs(yahoo->len)
|| check_ymsg(packet->payload, packet->payload_packet_len))) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO FOUND\n");
flow->yahoo_detection_finished = 2;
if (ntohs(yahoo->service) == 24 || ntohs(yahoo->service) == 152 || ntohs(yahoo->service) == 74) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO conference or chat invite found");
if (src != NULL) {
src->yahoo_conf_logged_in = 1;
}
if (dst != NULL) {
dst->yahoo_conf_logged_in = 1;
}
}
if (ntohs(yahoo->service) == 27 || ntohs(yahoo->service) == 155 || ntohs(yahoo->service) == 160) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO conference or chat logoff found");
if (src != NULL) {
src->yahoo_conf_logged_in = 0;
src->yahoo_voice_conf_logged_in = 0;
}
}
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
} else if (flow->yahoo_detection_finished == 2 && packet->detected_protocol_stack[0] == NDPI_PROTOCOL_YAHOO) {
return;
} else if (packet->payload_packet_len == 4 && memcmp(yahoo->YMSG_str, "YMSG", 4) == 0) {
flow->l4.tcp.yahoo_sip_comm = 1;
return;
} else if (flow->l4.tcp.yahoo_sip_comm && packet->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN
&& flow->packet_counter < 3) {
return;
}
/* now test for http login, at least 100 a bytes packet */
if (ndpi_struct->yahoo_detect_http_connections != 0 && packet->payload_packet_len > 100) {
if (memcmp(packet->payload, "POST /relay?token=", 18) == 0
|| memcmp(packet->payload, "GET /relay?token=", 17) == 0
|| memcmp(packet->payload, "GET /?token=", 12) == 0
|| memcmp(packet->payload, "HEAD /relay?token=", 18) == 0) {
if ((src != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, NDPI_PROTOCOL_YAHOO)
!= 0) || (dst != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask, NDPI_PROTOCOL_YAHOO)
!= 0)) {
/* this is mostly a file transfer */
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
if (memcmp(packet->payload, "POST ", 5) == 0) {
u_int16_t a;
ndpi_parse_packet_line_info(ndpi_struct, flow);
if ((packet->user_agent_line.len >= 21)
&& (memcmp(packet->user_agent_line.ptr, "YahooMobileMessenger/", 21) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO(Mobile)");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (NDPI_SRC_OR_DST_HAS_PROTOCOL(src, dst, NDPI_PROTOCOL_YAHOO)
&& packet->parsed_lines > 5
&& memcmp(&packet->payload[5], "/Messenger.", 11) == 0
&& packet->line[1].len >= 17
&& memcmp(packet->line[1].ptr, "Connection: Close",
17) == 0 && packet->line[2].len >= 6
&& memcmp(packet->line[2].ptr, "Host: ", 6) == 0
&& packet->line[3].len >= 16
&& memcmp(packet->line[3].ptr, "Content-Length: ",
16) == 0 && packet->line[4].len >= 23
&& memcmp(packet->line[4].ptr, "User-Agent: Mozilla/5.0",
23) == 0 && packet->line[5].len >= 23
&& memcmp(packet->line[5].ptr, "Cache-Control: no-cache", 23) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE,
"YAHOO HTTP POST P2P FILETRANSFER FOUND\n");
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (packet->host_line.ptr != NULL && packet->host_line.len >= 26 &&
memcmp(packet->host_line.ptr, "filetransfer.msg.yahoo.com", 26) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO HTTP POST FILETRANSFER FOUND\n");
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
/* now check every line */
for (a = 0; a < packet->parsed_lines; a++) {
if (packet->line[a].len >= 4 && memcmp(packet->line[a].ptr, "YMSG", 4) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct,
NDPI_LOG_TRACE,
"YAHOO HTTP POST FOUND, line is: %.*s\n", packet->line[a].len, packet->line[a].ptr);
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
if (packet->parsed_lines > 8 && packet->line[8].len > 250 && packet->line[8].ptr != NULL) {
if (memcmp(packet->line[8].ptr, "<Session ", 9) == 0) {
if (ndpi_check_for_YmsgCommand(packet->line[8].len, packet->line[8].ptr)) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG,
"found HTTP Proxy Yahoo Chat <Ymsg Command= pattern \n");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
}
if (memcmp(packet->payload, "GET /Messenger.", 15) == 0) {
if ((src != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, NDPI_PROTOCOL_YAHOO)
!= 0) || (dst != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask, NDPI_PROTOCOL_YAHOO)
!= 0)) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO HTTP GET /Messenger. match\n");
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
if ((memcmp(packet->payload, "GET /", 5) == 0)) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if ((packet->user_agent_line.ptr != NULL
&& packet->user_agent_line.len >= NDPI_STATICSTRING_LEN("YahooMobileMessenger/")
&& memcmp(packet->user_agent_line.ptr, "YahooMobileMessenger/",
NDPI_STATICSTRING_LEN("YahooMobileMessenger/")) == 0)
|| (packet->user_agent_line.len >= 15
&& (memcmp(packet->user_agent_line.ptr, "Y!%20Messenger/", 15) == 0))) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO(Mobile)");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (packet->host_line.ptr != NULL && packet->host_line.len >= NDPI_STATICSTRING_LEN("msg.yahoo.com") &&
memcmp(&packet->host_line.ptr[packet->host_line.len - NDPI_STATICSTRING_LEN("msg.yahoo.com")],
"msg.yahoo.com", NDPI_STATICSTRING_LEN("msg.yahoo.com")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
/* found another http login command for yahoo, it is like OSCAR */
/* detect http connections */
if (packet->payload_packet_len > 50 && (memcmp(packet->payload, "content-length: ", 16) == 0)) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->parsed_lines > 2 && packet->line[1].len == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "first line is empty.\n");
if (packet->line[2].len > 13 && memcmp(packet->line[2].ptr, "<Ymsg Command=", 14) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO web chat found\n");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
}
}
if (packet->payload_packet_len > 38 && memcmp(packet->payload, "CONNECT scs.msg.yahoo.com:5050 HTTP/1.", 38) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE, "YAHOO-HTTP FOUND\n");
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if ((src != NULL && NDPI_COMPARE_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, NDPI_PROTOCOL_YAHOO) != 0)
|| (dst != NULL
&& NDPI_COMPARE_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask, NDPI_PROTOCOL_YAHOO) != 0)) {
if (packet->payload_packet_len == 6 && memcmp(packet->payload, "YAHOO!", 6) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
/* asymmetric detection for SNDIMG not done yet.
* See ./Yahoo8.1-VideoCall-LAN.pcap and ./Yahoo-VideoCall-inPublicIP.pcap */
if (packet->payload_packet_len == 8
&& (memcmp(packet->payload, "<SNDIMG>", 8) == 0 || memcmp(packet->payload, "<REQIMG>", 8) == 0
|| memcmp(packet->payload, "<RVWCFG>", 8) == 0 || memcmp(packet->payload, "<RUPCFG>", 8) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_TRACE,
"YAHOO SNDIMG or REQIMG or RVWCFG or RUPCFG FOUND\n");
if (src != NULL) {
if (memcmp(packet->payload, "<SNDIMG>", 8) == 0) {
src->yahoo_video_lan_dir = 0;
} else {
src->yahoo_video_lan_dir = 1;
}
src->yahoo_video_lan_timer = packet->tick_timestamp;
}
if (dst != NULL) {
if (memcmp(packet->payload, "<SNDIMG>", 8) == 0) {
dst->yahoo_video_lan_dir = 0;
} else {
dst->yahoo_video_lan_dir = 1;
}
dst->yahoo_video_lan_timer = packet->tick_timestamp;
}
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO subtype VIDEO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
if (src != NULL && packet->tcp->dest == htons(5100)
&& ((u_int32_t)
(packet->tick_timestamp - src->yahoo_video_lan_timer) < ndpi_struct->yahoo_lan_video_timeout)) {
if (src->yahoo_video_lan_dir == 1) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "IMG MARKED");
return;
}
}
if (dst != NULL && packet->tcp->dest == htons(5100)
&& ((u_int32_t)
(packet->tick_timestamp - dst->yahoo_video_lan_timer) < ndpi_struct->yahoo_lan_video_timeout)) {
if (dst->yahoo_video_lan_dir == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "IMG MARKED");
return;
}
}
}
/* detect YAHOO over HTTP proxy */
#ifdef NDPI_PROTOCOL_HTTP
if (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP)
#endif
{
if (flow->l4.tcp.yahoo_http_proxy_stage == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG,
"YAHOO maybe HTTP proxy packet 1 => need next packet\n");
flow->l4.tcp.yahoo_http_proxy_stage = 1 + packet->packet_direction;
return;
}
if (flow->l4.tcp.yahoo_http_proxy_stage == 1 + packet->packet_direction) {
if ((packet->payload_packet_len > 250) && (memcmp(packet->payload, "<Session ", 9) == 0)) {
if (ndpi_check_for_YmsgCommand(packet->payload_packet_len, packet->payload)) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG,
"found HTTP Proxy Yahoo Chat <Ymsg Command= pattern \n");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG,
"YAHOO maybe HTTP proxy still initial direction => need next packet\n");
return;
}
if (flow->l4.tcp.yahoo_http_proxy_stage == 2 - packet->packet_direction) {
ndpi_parse_packet_line_info_any(ndpi_struct, flow);
if (packet->parsed_lines >= 9) {
if (packet->line[4].ptr != NULL && packet->line[4].len >= 9 &&
packet->line[8].ptr != NULL && packet->line[8].len >= 6 &&
memcmp(packet->line[4].ptr, "<Session ", 9) == 0 &&
memcmp(packet->line[8].ptr, "<Ymsg ", 6) == 0) {
NDPI_LOG(NDPI_PROTOCOL_YAHOO, ndpi_struct, NDPI_LOG_DEBUG, "found YAHOO over HTTP proxy");
ndpi_int_yahoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
}
}
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_YAHOO);
}
static u_int8_t check_for_http(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG, "Gadu-Gadu: check for http.\n");
if (packet->payload_packet_len < 50) {
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG, "Gadu-Gadu: Packet too small.\n");
return 0;
} else if (memcmp(packet->payload, "GET /appsvc/appmsg", 18) == 0) {
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG, "Gadu-Gadu: GET FOUND\n");
parse_gg_foneno(ndpi_struct, flow);
// parse packet
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->parsed_lines <= 1) {
return 0;
}
if (packet->host_line.ptr == NULL) {
return 0;
}
if (!(packet->host_line.len >= 19 && memcmp(packet->host_line.ptr, "appmsg.gadu-gadu.pl", 19) == 0)) {
return 0;
}
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG,
"Gadu-Gadu: Is gadugadu host FOUND %s\n", packet->host_line.ptr);
ndpi_int_gadugadu_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
} else if (memcmp(packet->payload, "POST /send/message/", 15) == 0) {
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG, "Gadu-Gadu: GET FOUND\n");
// parse packet
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->parsed_lines <= 1) {
return 0;
}
if (packet->host_line.ptr == NULL) {
return 0;
}
if (!(packet->host_line.len >= 17 && memcmp(packet->host_line.ptr, "life.gadu-gadu.pl", 17) == 0)) {
return 0;
}
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG,
"Gadu-Gadu: Is gadugadu post FOUND %s\n", packet->host_line.ptr);
ndpi_int_gadugadu_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
} else if (memcmp(packet->payload, "GET /rotate_token", 17) == 0) {
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG, "Gadu-Gadu: GET FOUND\n");
// parse packet
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->parsed_lines <= 1) {
return 0;
}
if (packet->host_line.ptr == NULL) {
return 0;
}
if (!(packet->host_line.len >= 13 && memcmp(packet->host_line.ptr, "sms.orange.pl", 13) == 0)) {
return 0;
}
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG,
"Gadu-Gadu: gadugadu sms FOUND %s\n", packet->host_line.ptr);
ndpi_int_gadugadu_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
} else if ((memcmp(packet->payload, "GET /nowosci.xml", NDPI_STATICSTRING_LEN("GET /nowosci.xml")) == 0) ||
(memcmp(packet->payload, "GET /gadu-gadu.xml", NDPI_STATICSTRING_LEN("GET /gadu-gadu.xml")) == 0) ||
(memcmp(packet->payload, "POST /access_token", NDPI_STATICSTRING_LEN("POST /access_token")) == 0)) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->user_agent_line.ptr == NULL) {
return 0;
}
if (!(packet->user_agent_line.len >= NDPI_STATICSTRING_LEN("Gadu-Gadu Client") &&
memcmp(packet->user_agent_line.ptr, "Gadu-Gadu Client", NDPI_STATICSTRING_LEN("Gadu-Gadu Client")) == 0)) {
return 0;
}
NDPI_LOG(NDPI_PROTOCOL_GADUGADU, ndpi_struct, NDPI_LOG_DEBUG,
"Gadu-Gadu: gadugadu FOUND %s\n", packet->user_agent_line.ptr);
ndpi_int_gadugadu_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
}
return 1;
}
static void ndpi_search_zattoo(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
u_int16_t i;
if (packet->detected_protocol_stack[0] == NDPI_PROTOCOL_ZATTOO) {
if (src != NULL && ((u_int32_t)
(packet->tick_timestamp - src->zattoo_ts) < ndpi_struct->zattoo_connection_timeout)) {
src->zattoo_ts = packet->tick_timestamp;
}
if (dst != NULL && ((u_int32_t)
(packet->tick_timestamp - dst->zattoo_ts) < ndpi_struct->zattoo_connection_timeout)) {
dst->zattoo_ts = packet->tick_timestamp;
}
return;
}
if (packet->tcp != NULL) {
if (packet->payload_packet_len > 50 && memcmp(packet->payload, "GET /frontdoor/fd?brand=Zattoo&v=", 33) == 0) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct,
NDPI_LOG_DEBUG, "add connection over tcp with pattern GET /frontdoor/fd?brand=Zattoo&v=\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (packet->payload_packet_len > 50
&& memcmp(packet->payload, "GET /ZattooAdRedirect/redirect.jsp?user="******"add connection over tcp with pattern GET /ZattooAdRedirect/redirect.jsp?user=\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
if (packet->payload_packet_len > 50
&& (memcmp(packet->payload, "POST /channelserver/player/channel/update HTTP/1.1", 50) == 0
|| memcmp(packet->payload, "GET /epg/query", 14) == 0)) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
for (i = 0; i < packet->parsed_lines; i++) {
if (packet->line[i].len >= 18 && (ndpi_mem_cmp(packet->line[i].ptr, "User-Agent: Zattoo", 18) == 0)) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct,
NDPI_LOG_DEBUG,
"add connection over tcp with pattern POST /channelserver/player/channel/update HTTP/1.1\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
} else if (packet->payload_packet_len > 50
&& (memcmp(packet->payload, "GET /", 5) == 0
|| memcmp(packet->payload, "POST /", NDPI_STATICSTRING_LEN("POST /")) == 0)) {
/* TODO to avoid searching currently only a specific length and offset is used
* that might be changed later */
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (ndpi_int_zattoo_user_agent_set(ndpi_struct, flow)) {
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
} else if (packet->payload_packet_len > 50 && memcmp(packet->payload, "POST http://", 12) == 0) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
// test for unique character of the zattoo header
if (packet->parsed_lines == 4 && packet->host_line.ptr != NULL) {
u_int32_t ip;
u_int16_t bytes_read = 0;
ip = ndpi_bytestream_to_ipv4(&packet->payload[12], packet->payload_packet_len, &bytes_read);
// and now test the firt 5 bytes of the payload for zattoo pattern
if (ip == packet->iph->daddr
&& packet->empty_line_position_set != 0
&& ((packet->payload_packet_len - packet->empty_line_position) > 10)
&& packet->payload[packet->empty_line_position + 2] ==
0x03
&& packet->payload[packet->empty_line_position + 3] ==
0x04
&& packet->payload[packet->empty_line_position + 4] ==
0x00
&& packet->payload[packet->empty_line_position + 5] ==
0x04
&& packet->payload[packet->empty_line_position + 6] ==
0x0a && packet->payload[packet->empty_line_position + 7] == 0x00) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct,
NDPI_LOG_DEBUG, "add connection over tcp with pattern POST http://\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
}
} else if (flow->zattoo_stage == 0) {
if (packet->payload_packet_len > 50
&& packet->payload[0] == 0x03
&& packet->payload[1] == 0x04
&& packet->payload[2] == 0x00
&& packet->payload[3] == 0x04 && packet->payload[4] == 0x0a && packet->payload[5] == 0x00) {
flow->zattoo_stage = 1 + packet->packet_direction;
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct,
NDPI_LOG_DEBUG, "need next packet, seen pattern 0x030400040a00\n");
return;
}
/* the following is is searching for flash, not for zattoo. cust1 wants to do so. */
} else if (flow->zattoo_stage == 2 - packet->packet_direction
&& packet->payload_packet_len > 50 && packet->payload[0] == 0x03 && packet->payload[1] == 0x04) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "add connection over tcp with 0x0304.\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
} else if (flow->zattoo_stage == 1 + packet->packet_direction) {
if (packet->payload_packet_len > 500 && packet->payload[0] == 0x00 && packet->payload[1] == 0x00) {
flow->zattoo_stage = 3 + packet->packet_direction;
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct,
NDPI_LOG_DEBUG, "need next packet, seen pattern 0x0000\n");
return;
}
if (packet->payload_packet_len > 50
&& packet->payload[0] == 0x03
&& packet->payload[1] == 0x04
&& packet->payload[2] == 0x00
&& packet->payload[3] == 0x04 && packet->payload[4] == 0x0a && packet->payload[5] == 0x00) {
}
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG,
"need next packet, seen pattern 0x030400040a00\n");
return;
} else if (flow->zattoo_stage == 4 - packet->packet_direction
&& packet->payload_packet_len > 50 && packet->payload[0] == 0x03 && packet->payload[1] == 0x04) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "add connection over tcp with 0x0304.\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
} else if (flow->zattoo_stage == 5 + packet->packet_direction && (packet->payload_packet_len == 125)) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "detected zattoo.\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
} else if (flow->zattoo_stage == 6 - packet->packet_direction && packet->payload_packet_len == 1412) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "found zattoo.\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_CORRELATED_PROTOCOL);
return;
}
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG,
"ZATTOO: discarted the flow (TCP): packet_size: %u; Flowstage: %u\n",
packet->payload_packet_len, flow->zattoo_stage);
} else if (packet->udp != NULL) {
if (packet->payload_packet_len > 20 && (packet->udp->dest == htons(5003)
|| packet->udp->source == htons(5003))
&& (get_u_int16_t(packet->payload, 0) == htons(0x037a)
|| get_u_int16_t(packet->payload, 0) == htons(0x0378)
|| get_u_int16_t(packet->payload, 0) == htons(0x0305)
|| get_u_int32_t(packet->payload, 0) == htonl(0x03040004)
|| get_u_int32_t(packet->payload, 0) == htonl(0x03010005))) {
if (++flow->zattoo_stage == 2) {
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "add connection over udp.\n");
ndpi_int_zattoo_add_connection(ndpi_struct, flow, NDPI_REAL_PROTOCOL);
return;
}
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "need next packet udp.\n");
return;
}
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG,
"ZATTOO: discarded the flow (UDP): packet_size: %u; Flowstage: %u\n",
packet->payload_packet_len, flow->zattoo_stage);
}
NDPI_LOG(NDPI_PROTOCOL_ZATTOO, ndpi_struct, NDPI_LOG_DEBUG, "exclude zattoo.\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_ZATTOO);
}
void ndpi_search_veohtv_tcp(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
// struct ndpi_id_struct *src=ndpi_struct->src;
// struct ndpi_id_struct *dst=ndpi_struct->dst;
if (packet->detected_protocol_stack[0] ==
NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV)
return;
if (flow->l4.tcp.veoh_tv_stage == 1 || flow->l4.tcp.veoh_tv_stage == 2) {
if (packet->packet_direction != flow->setup_packet_direction &&
packet->payload_packet_len >
NDPI_STATICSTRING_LEN("HTTP/1.1 20")
&& memcmp(packet->payload, "HTTP/1.1 ",
NDPI_STATICSTRING_LEN("HTTP/1.1 ")) == 0
&& (packet->payload[NDPI_STATICSTRING_LEN("HTTP/1.1 ")] ==
'2'
|| packet->payload[NDPI_STATICSTRING_LEN("HTTP/1.1 ")]
== '3'
|| packet->payload[NDPI_STATICSTRING_LEN("HTTP/1.1 ")]
== '4'
|| packet->payload[NDPI_STATICSTRING_LEN("HTTP/1.1 ")]
== '5')) {
#ifdef NDPI_CONTENT_FLASH
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->detected_protocol_stack[0] ==
NDPI_CONTENT_FLASH
&& packet->server_line.ptr != NULL
&& packet->server_line.len >
NDPI_STATICSTRING_LEN("Veoh-")
&& memcmp(packet->server_line.ptr, "Veoh-",
NDPI_STATICSTRING_LEN("Veoh-")) == 0) {
NDPI_LOG(NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV,
ndpi_struct, NDPI_LOG_DEBUG,
"VeohTV detected.\n");
ndpi_int_veohtv_add_connection(ndpi_struct,
flow,
NDPI_CORRELATED_PROTOCOL);
return;
}
#endif
if (flow->l4.tcp.veoh_tv_stage == 2) {
NDPI_ADD_PROTOCOL_TO_BITMASK
(flow->excluded_protocol_bitmask,
NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV);
return;
}
NDPI_LOG(NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV,
ndpi_struct, NDPI_LOG_DEBUG,
"VeohTV detected.\n");
ndpi_int_veohtv_add_connection(ndpi_struct, flow,
NDPI_CORRELATED_PROTOCOL);
return;
} else
if (flow->packet_direction_counter
[(flow->setup_packet_direction == 1) ? 0 : 1] > 3) {
if (flow->l4.tcp.veoh_tv_stage == 2) {
NDPI_ADD_PROTOCOL_TO_BITMASK
(flow->excluded_protocol_bitmask,
NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV);
return;
}
NDPI_LOG(NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV,
ndpi_struct, NDPI_LOG_DEBUG,
"VeohTV detected.\n");
ndpi_int_veohtv_add_connection(ndpi_struct, flow,
NDPI_CORRELATED_PROTOCOL);
return;
} else {
if (flow->packet_counter > 10) {
if (flow->l4.tcp.veoh_tv_stage == 2) {
NDPI_ADD_PROTOCOL_TO_BITMASK
(flow->excluded_protocol_bitmask,
NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV);
return;
}
NDPI_LOG(NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV,
ndpi_struct, NDPI_LOG_DEBUG,
"VeohTV detected.\n");
ndpi_int_veohtv_add_connection(ndpi_struct,
flow,
NDPI_CORRELATED_PROTOCOL);
return;
}
return;
}
} else if (packet->udp) {
/* UDP packets from Veoh Client Player
*
* packet starts with 16 byte random? value
* then a 4 byte mode value
* values between 21 and 26 has been seen
* then a 4 byte counter */
if (packet->payload_packet_len == 28 &&
get_u_int32_t(packet->payload, 16) == htonl(0x00000021) &&
get_u_int32_t(packet->payload, 20) == htonl(0x00000000)
&& get_u_int32_t(packet->payload, 24) == htonl(0x01040000)) {
NDPI_LOG(NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV,
ndpi_struct, NDPI_LOG_DEBUG,
"UDP VeohTV found.\n");
ndpi_int_veohtv_add_connection(ndpi_struct, flow,
NDPI_REAL_PROTOCOL);
return;
}
}
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask,
NDPI_PROTOCOL_HTTP_APPLICATION_VEOHTV);
}
void ndpi_search_worldofwarcraft(struct ndpi_detection_module_struct
*ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct, NDPI_LOG_DEBUG, "Search World of Warcraft.\n");
if (packet->tcp != NULL) {
/*
if ((packet->payload_packet_len > NDPI_STATICSTRING_LEN("POST /") &&
memcmp(packet->payload, "POST /", NDPI_STATICSTRING_LEN("POST /")) == 0) ||
(packet->payload_packet_len > NDPI_STATICSTRING_LEN("GET /") &&
memcmp(packet->payload, "GET /", NDPI_STATICSTRING_LEN("GET /")) == 0)) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->user_agent_line.ptr != NULL &&
packet->user_agent_line.len == NDPI_STATICSTRING_LEN("Blizzard Web Client") &&
memcmp(packet->user_agent_line.ptr, "Blizzard Web Client",
NDPI_STATICSTRING_LEN("Blizzard Web Client")) == 0) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct, NDPI_LOG_DEBUG,
"World of Warcraft: Web Client found\n");
return;
}
}
*/
if (packet->payload_packet_len > NDPI_STATICSTRING_LEN("GET /")
&& memcmp(packet->payload, "GET /", NDPI_STATICSTRING_LEN("GET /")) == 0) {
ndpi_parse_packet_line_info(ndpi_struct, flow);
if (packet->user_agent_line.ptr != NULL && packet->host_line.ptr != NULL
&& packet->user_agent_line.len > NDPI_STATICSTRING_LEN("Blizzard Downloader")
&& packet->host_line.len > NDPI_STATICSTRING_LEN("worldofwarcraft.com")
&& memcmp(packet->user_agent_line.ptr, "Blizzard Downloader",
NDPI_STATICSTRING_LEN("Blizzard Downloader")) == 0
&& memcmp(&packet->host_line.ptr[packet->host_line.len - NDPI_STATICSTRING_LEN("worldofwarcraft.com")],
"worldofwarcraft.com", NDPI_STATICSTRING_LEN("worldofwarcraft.com")) == 0) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct, NDPI_LOG_DEBUG,
"World of Warcraft: Web Client found\n");
return;
}
}
if (packet->payload_packet_len == 50 && memcmp(&packet->payload[2], "WORLD OF WARCRAFT CONNECTION",
NDPI_STATICSTRING_LEN("WORLD OF WARCRAFT CONNECTION")) == 0) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct, NDPI_LOG_DEBUG, "World of Warcraft: Login found\n");
return;
}
if (packet->tcp->dest == htons(3724) && packet->payload_packet_len < 70
&& packet->payload_packet_len > 40 && (memcmp(&packet->payload[4], "WoW", 3) == 0
|| memcmp(&packet->payload[5], "WoW", 3) == 0)) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct, NDPI_LOG_DEBUG, "World of Warcraft: Login found\n");
return;
}
if (NDPI_SRC_OR_DST_HAS_PROTOCOL(src, dst, NDPI_PROTOCOL_WORLDOFWARCRAFT) != 0) {
if (packet->tcp->source == htons(3724)
&& packet->payload_packet_len == 8 && get_u_int32_t(packet->payload, 0) == htonl(0x0006ec01)) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "World of Warcraft: connection detected\n");
return;
}
}
/* for some well known WoW ports
check another pattern */
if (flow->l4.tcp.wow_stage == 0) {
if (ndpi_int_is_wow_port(packet->tcp->source) &&
packet->payload_packet_len >= 14 &&
ntohs(get_u_int16_t(packet->payload, 0)) == (packet->payload_packet_len - 2)) {
if (get_u_int32_t(packet->payload, 2) == htonl(0xec010100)) {
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "probably World of Warcraft, waiting for final packet\n");
flow->l4.tcp.wow_stage = 2;
return;
} else if (packet->payload_packet_len == 41 &&
(get_u_int16_t(packet->payload, 2) == htons(0x0085) ||
get_u_int16_t(packet->payload, 2) == htons(0x0034) ||
get_u_int16_t(packet->payload, 2) == htons(0x1960))) {
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "maybe World of Warcraft, need next\n");
flow->l4.tcp.wow_stage = 1;
return;
}
}
}
if (flow->l4.tcp.wow_stage == 1) {
if (packet->payload_packet_len == 325 &&
ntohs(get_u_int16_t(packet->payload, 0)) == (packet->payload_packet_len - 2) &&
get_u_int16_t(packet->payload, 4) == 0 &&
(get_u_int16_t(packet->payload, packet->payload_packet_len - 3) == htons(0x2331) ||
get_u_int16_t(packet->payload, 67) == htons(0x2331)) &&
(memcmp
(&packet->payload[packet->payload_packet_len - 18],
"\x94\xec\xff\xfd\x67\x62\xd4\x67\xfb\xf9\xdd\xbd\xfd\x01\xc0\x8f\xf9\x81", 18) == 0
|| memcmp(&packet->payload[packet->payload_packet_len - 30],
"\x94\xec\xff\xfd\x67\x62\xd4\x67\xfb\xf9\xdd\xbd\xfd\x01\xc0\x8f\xf9\x81", 18) == 0)) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "World of Warcraft: connection detected\n");
return;
}
if (packet->payload_packet_len > 32 &&
ntohs(get_u_int16_t(packet->payload, 0)) == (packet->payload_packet_len - 2)) {
if (get_u_int16_t(packet->payload, 4) == 0) {
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "probably World of Warcraft, waiting for final packet\n");
flow->l4.tcp.wow_stage = 2;
return;
} else if (get_u_int32_t(packet->payload, 2) == htonl(0x12050000)) {
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "probably World of Warcraft, waiting for final packet\n");
flow->l4.tcp.wow_stage = 2;
return;
}
}
}
if (flow->l4.tcp.wow_stage == 2) {
if (packet->payload_packet_len == 4) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "World of Warcraft: connection detected\n");
return;
} else if (packet->payload_packet_len > 4 && packet->payload_packet_len <= 16 && packet->payload[4] == 0x0c) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "World of Warcraft: connection detected\n");
return;
} else if (flow->packet_counter < 3) {
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct, NDPI_LOG_DEBUG, "waiting for final packet\n");
return;
}
}
if (flow->l4.tcp.wow_stage == 0 && packet->tcp->dest == htons(1119)) {
/* special log in port for battle.net/world of warcraft */
if (packet->payload_packet_len >= 77 &&
get_u_int32_t(packet->payload, 0) == htonl(0x40000aed) && get_u_int32_t(packet->payload, 4) == htonl(0xea070aed)) {
ndpi_int_worldofwarcraft_add_connection(ndpi_struct, flow);
NDPI_LOG(NDPI_PROTOCOL_WORLDOFWARCRAFT, ndpi_struct,
NDPI_LOG_DEBUG, "World of Warcraft: connection detected\n");
return;
}
}
}
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_WORLDOFWARCRAFT);
}