/* * ps_vue.c * * Copyright (C) 2018 by 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_protocol_ids.h" #define NDPI_CURRENT_PROTO NDPI_PROTOCOL_PS_VUE #include "ndpi_api.h" static u_int8_t ps_vue_ptree_match(struct ndpi_detection_module_struct *ndpi_struct, struct in_addr *pin) { return((ndpi_network_ptree_match(ndpi_struct, pin) == NDPI_PROTOCOL_PS_VUE) ? 1 : 0); } /* ******************************************* */ static u_int8_t is_ps_vue_flow(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { struct ndpi_packet_struct *packet = &flow->packet; if(packet->iph) { struct in_addr daddr; daddr.s_addr = packet->iph->daddr; if(ps_vue_ptree_match(ndpi_struct, &daddr)) { return(1); } } return(0); } static void ndpi_check_ps_vue(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { NDPI_LOG_DBG(ndpi_struct, "search ps_vue video \n"); if (is_ps_vue_flow(ndpi_struct, flow)){ NDPI_LOG_INFO(ndpi_struct, "found ps_vue\n"); ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_PS_VUE, NDPI_PROTOCOL_UNKNOWN); return; } else { NDPI_EXCLUDE_PROTO(ndpi_struct, flow); } } void ndpi_search_ps_vue(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { struct ndpi_packet_struct *packet = &flow->packet; NDPI_LOG_DBG(ndpi_struct, "search ps_vue\n"); /* skip marked packets */ if(packet->detected_protocol_stack[0] != NDPI_PROTOCOL_PS_VUE) ndpi_check_ps_vue(ndpi_struct, flow); } void init_ps_vue_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) { ndpi_set_bitmask_protocol_detection("PS_Vue", ndpi_struct, detection_bitmask, *id, NDPI_PROTOCOL_PS_VUE, ndpi_search_ps_vue, NDPI_SELECTION_BITMASK_PROTOCOL_TCP_OR_UDP_WITH_PAYLOAD, SAVE_DETECTION_BITMASK_AS_UNKNOWN, ADD_TO_DETECTION_BITMASK); *id += 1; }