diff options
Diffstat (limited to 'src/lib/protocols/xbox.c')
| -rw-r--r-- | src/lib/protocols/xbox.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/lib/protocols/xbox.c b/src/lib/protocols/xbox.c new file mode 100644 index 000000000..6ee25f05f --- /dev/null +++ b/src/lib/protocols/xbox.c @@ -0,0 +1,103 @@ +/* + * xbox.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_protocols.h" +#ifdef NDPI_PROTOCOL_XBOX + +static void ndpi_int_xbox_add_connection(struct ndpi_detection_module_struct + *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_XBOX, NDPI_REAL_PROTOCOL); +} + + +void ndpi_search_xbox(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; + + /* + * THIS IS TH XBOX UDP DETCTION ONLY !!! + * the xbox tcp detection is done by http code + */ + + + /* this detection also works for asymmetric xbox udp traffic */ + if (packet->udp != NULL) { + + u_int16_t dport = ntohs(packet->udp->dest); + u_int16_t sport = ntohs(packet->udp->source); + + NDPI_LOG(NDPI_PROTOCOL_XBOX, ndpi_struct, NDPI_LOG_DEBUG, "search xbox\n"); + + if (packet->payload_packet_len > 12 && + get_u_int32_t(packet->payload, 0) == 0 && packet->payload[5] == 0x58 && + memcmp(&packet->payload[7], "\x00\x00\x00", 3) == 0) { + + if ((packet->payload[4] == 0x0c && packet->payload[6] == 0x76) || + (packet->payload[4] == 0x02 && packet->payload[6] == 0x18) || + (packet->payload[4] == 0x0b && packet->payload[6] == 0x80) || + (packet->payload[4] == 0x03 && packet->payload[6] == 0x40) || + (packet->payload[4] == 0x06 && packet->payload[6] == 0x4e)) { + + ndpi_int_xbox_add_connection(ndpi_struct, flow); + NDPI_LOG(NDPI_PROTOCOL_XBOX, ndpi_struct, NDPI_LOG_DEBUG, "xbox udp connection detected\n"); + return; + } + } + if ((dport == 3074 || sport == 3074) + && ((packet->payload_packet_len == 24 && packet->payload[0] == 0x00) + || (packet->payload_packet_len == 42 && packet->payload[0] == 0x4f && packet->payload[2] == 0x0a) + || (packet->payload_packet_len == 80 && ntohs(get_u_int16_t(packet->payload, 0)) == 0x50bc + && packet->payload[2] == 0x45) + || (packet->payload_packet_len == 40 && ntohl(get_u_int32_t(packet->payload, 0)) == 0xcf5f3202) + || (packet->payload_packet_len == 38 && ntohl(get_u_int32_t(packet->payload, 0)) == 0xc1457f03) + || (packet->payload_packet_len == 28 && ntohl(get_u_int32_t(packet->payload, 0)) == 0x015f2c00))) { + if (flow->l4.udp.xbox_stage == 1) { + ndpi_int_xbox_add_connection(ndpi_struct, flow); + NDPI_LOG(NDPI_PROTOCOL_XBOX, ndpi_struct, NDPI_LOG_DEBUG, "xbox udp connection detected\n"); + return; + } + NDPI_LOG(NDPI_PROTOCOL_XBOX, ndpi_struct, NDPI_LOG_DEBUG, "maybe xbox.\n"); + flow->l4.udp.xbox_stage++; + return; + } + + /* exclude here all non matched udp traffic, exclude here tcp only if http has been excluded, because xbox could use http */ + if (packet->tcp == NULL +#ifdef NDPI_PROTOCOL_HTTP + || NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_HTTP) != 0 +#endif + ) { + NDPI_LOG(NDPI_PROTOCOL_XBOX, ndpi_struct, NDPI_LOG_DEBUG, "xbox udp excluded.\n"); + NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_XBOX); + } + } + /* to not exclude tcp traffic here, done by http code... */ +} + +#endif |