/* * 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 . * */ #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