diff options
Diffstat (limited to 'src/lib/protocols/attic/popo.c')
| -rw-r--r-- | src/lib/protocols/attic/popo.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/lib/protocols/attic/popo.c b/src/lib/protocols/attic/popo.c new file mode 100644 index 000000000..b5c45ea2b --- /dev/null +++ b/src/lib/protocols/attic/popo.c @@ -0,0 +1,86 @@ +/* + * popo.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_POPO + +static void ndpi_int_popo_add_connection(struct ndpi_detection_module_struct + *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_POPO, NDPI_REAL_PROTOCOL); +} + +void ndpi_search_popo_tcp_udp(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; + + if (packet->tcp != NULL) { + if ((packet->payload_packet_len == 20) + && get_u_int32_t(packet->payload, 0) == htonl(0x0c000000) + && get_u_int32_t(packet->payload, 4) == htonl(0x01010000) + && get_u_int32_t(packet->payload, 8) == htonl(0x06000000) + && get_u_int32_t(packet->payload, 12) == 0 && get_u_int32_t(packet->payload, 16) == 0) { + NDPI_LOG(NDPI_PROTOCOL_POPO, ndpi_struct, NDPI_LOG_DEBUG, "POPO detected\n"); + ndpi_int_popo_add_connection(ndpi_struct, flow); + return; + } + + if (NDPI_SRC_OR_DST_HAS_PROTOCOL(src, dst, NDPI_PROTOCOL_POPO) != 0) { +#define NDPI_POPO_IP_SUBNET_START ( (220 << 24) + (181 << 16) + (28 << 8) + 220) +#define NDPI_POPO_IP_SUBNET_END ( (220 << 24) + (181 << 16) + (28 << 8) + 238) + + /* may match the first payload ip packet only ... */ + + if (ntohl(packet->iph->daddr) >= NDPI_POPO_IP_SUBNET_START + && ntohl(packet->iph->daddr) <= NDPI_POPO_IP_SUBNET_END) { + NDPI_LOG(NDPI_PROTOCOL_POPO, ndpi_struct, NDPI_LOG_DEBUG, "POPO ip subnet detected\n"); + ndpi_int_popo_add_connection(ndpi_struct, flow); + return; + } + } + } + + if (packet->payload_packet_len > 13 && packet->payload_packet_len == get_l32(packet->payload, 0) + && !get_l16(packet->payload, 12)) { + register u_int16_t ii; + for (ii = 14; ii < 50 && ii < packet->payload_packet_len - 8; ++ii) { + if (packet->payload[ii] == '@') + if (!memcmp(&packet->payload[ii + 1], "163.com", 7) + || (ii <= packet->payload_packet_len - 13 && !memcmp(&packet->payload[ii + 1], "popo.163.com", 12))) { + NDPI_LOG(NDPI_PROTOCOL_POPO, ndpi_struct, NDPI_LOG_DEBUG, "POPO detected.\n"); + ndpi_int_popo_add_connection(ndpi_struct, flow); + return; + } + } + } + + NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_POPO); +} + +#endif |