diff options
Diffstat (limited to 'src/lib/protocols/meebo.c')
| -rw-r--r-- | src/lib/protocols/meebo.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/lib/protocols/meebo.c b/src/lib/protocols/meebo.c new file mode 100644 index 000000000..a54cb311e --- /dev/null +++ b/src/lib/protocols/meebo.c @@ -0,0 +1,165 @@ +/* + * meebo.c + * + * Copyright (C) 2009-2011 by ipoque GmbH + * Copyright (C) 2011-15 - ntop.org + * + * This file is part of nDPI, an open source deep packet inspection + * library based on the OpenDPI and PACE technology by ipoque GmbH + * + * nDPI is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * nDPI is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with nDPI. If not, see <http://www.gnu.org/licenses/>. + * + */ + + +#include "ndpi_api.h" + +#ifdef NDPI_PROTOCOL_MEEBO + +static void ndpi_int_meebo_add_connection(struct ndpi_detection_module_struct + *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_MEEBO, NDPI_CORRELATED_PROTOCOL); +} + + + + +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); +} +#endif |