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https://github.com/vel21ripn/nDPI.git
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128 lines
4.7 KiB
C
128 lines
4.7 KiB
C
/*
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* spotify.c
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*
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* Copyright (C) 2011-13 by ntop.org
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*
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* This file is part of nDPI, an open source deep packet inspection
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* library based on the OpenDPI and PACE technology by ipoque GmbH
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*
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* nDPI is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* nDPI is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with nDPI. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "ndpi_api.h"
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#ifdef NDPI_PROTOCOL_SPOTIFY
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static void ndpi_int_spotify_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
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struct ndpi_flow_struct *flow,
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u_int8_t due_to_correlation)
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{
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ndpi_int_add_connection(ndpi_struct, flow,
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NDPI_PROTOCOL_SPOTIFY,
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due_to_correlation ? NDPI_CORRELATED_PROTOCOL : NDPI_REAL_PROTOCOL);
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}
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static void ndpi_check_spotify(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
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{
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struct ndpi_packet_struct *packet = &flow->packet;
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// const u_int8_t *packet_payload = packet->payload;
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u_int32_t payload_len = packet->payload_packet_len;
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if(packet->udp != NULL) {
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u_int16_t spotify_port = htons(57621);
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if((packet->udp->source == spotify_port)
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&& (packet->udp->dest == spotify_port)) {
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if(payload_len > 2) {
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if(memcmp(packet->payload, "SpotUdp", 7) == 0) {
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NDPI_LOG(NDPI_PROTOCOL_SPOTIFY, ndpi_struct, NDPI_LOG_DEBUG, "Found spotify udp dissector.\n");
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ndpi_int_spotify_add_connection(ndpi_struct, flow, 0);
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return;
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}
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}
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}
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} else if(packet->tcp != NULL) {
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if(packet->payload[0] == 0x00 && packet->payload[1] == 0x04 &&
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packet->payload[2] == 0x00 && packet->payload[3] == 0x00&&
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packet->payload[6] == 0x52 && packet->payload[7] == 0x0e &&
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packet->payload[8] == 0x50 ) {
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NDPI_LOG(NDPI_PROTOCOL_SPOTIFY, ndpi_struct, NDPI_LOG_DEBUG, "Found spotify tcp dissector.\n");
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ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_SPOTIFY, NDPI_REAL_PROTOCOL);
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}
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if(packet->iph /* IPv4 Only: we need to support packet->iphv6 at some point */) {
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/* if(packet->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN) */ {
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/*
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Spotify
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78.31.8.0 - 78.31.15.255 (78.31.8.0/22)
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AS29017
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193.235.232.0 - 193.235.235.255 (193.235.232.0/22)
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AS29017
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194.132.196.0 - 194.132.199.255 (194.132.198.147/22)
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AS43650
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194.132.176.0 - 194.132.179.255 (194.132.176.0/22)
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AS43650
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194.132.162.0 - 194.132.163.255 (194.132.162.0/24)
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AS43650
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*/
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//printf("%08X - %08X\n", ntohl(packet->iph->saddr), ntohl(packet->iph->daddr));
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if(((ntohl(packet->iph->saddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0x4E1F0800 /* 78.31.8.0 */)
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|| ((ntohl(packet->iph->daddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0x4E1F0800 /* 78.31.8.0 */)
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/* **** */
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|| ((ntohl(packet->iph->saddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0xC1EBE800 /* 193.235.232.0 */)
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|| ((ntohl(packet->iph->daddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0xC1EBE800 /* 193.235.232.0 */)
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/* **** */
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|| ((ntohl(packet->iph->saddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0xC284C400 /* 194.132.196.0 */)
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|| ((ntohl(packet->iph->daddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0xC284C400 /* 194.132.196.0 */)
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/* **** */
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|| ((ntohl(packet->iph->saddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0xC284A200 /* 194.132.162.0 */)
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|| ((ntohl(packet->iph->daddr) & 0xFFFFFC00 /* 255.255.252.0 */) == 0xC284A200 /* 194.132.162.0 */)
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) {
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NDPI_LOG(NDPI_PROTOCOL_SPOTIFY, ndpi_struct, NDPI_LOG_DEBUG, "Found spotify via ip range.\n");
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ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_SPOTIFY, NDPI_REAL_PROTOCOL);
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return;
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}
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}
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}
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}
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NDPI_LOG(NDPI_PROTOCOL_SPOTIFY, ndpi_struct, NDPI_LOG_DEBUG, "exclude spotify.\n");
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NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_SPOTIFY);
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}
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void ndpi_search_spotify(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
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{
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struct ndpi_packet_struct *packet = &flow->packet;
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NDPI_LOG(NDPI_PROTOCOL_SPOTIFY, ndpi_struct, NDPI_LOG_DEBUG, "spotify detection...\n");
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/* skip marked packets */
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if (packet->detected_protocol_stack[0] != NDPI_PROTOCOL_SPOTIFY) {
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if (packet->tcp_retransmission == 0) {
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ndpi_check_spotify(ndpi_struct, flow);
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}
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}
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}
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#endif
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