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Diffstat (limited to 'src/lib/protocols/florensia.c')
| -rw-r--r-- | src/lib/protocols/florensia.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/lib/protocols/florensia.c b/src/lib/protocols/florensia.c new file mode 100644 index 000000000..7f253cb6f --- /dev/null +++ b/src/lib/protocols/florensia.c @@ -0,0 +1,122 @@ +/* + * florensia.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_FLORENSIA + + +static void ndpi_florensia_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_FLORENSIA, NDPI_REAL_PROTOCOL); +} + +void ndpi_search_florensia(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_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "search florensia.\n"); + + if (packet->tcp != NULL) { + if (packet->payload_packet_len == 5 && get_l16(packet->payload, 0) == packet->payload_packet_len + && packet->payload[2] == 0x65 && packet->payload[4] == 0xff) { + if (flow->florensia_stage == 1) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "found florensia.\n"); + ndpi_florensia_add_connection(ndpi_struct, flow); + return; + } + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "maybe florensia -> stage is set to 1.\n"); + flow->florensia_stage = 1; + return; + } + if (packet->payload_packet_len > 8 && get_l16(packet->payload, 0) == packet->payload_packet_len + && get_u_int16_t(packet->payload, 2) == htons(0x0201) && get_u_int32_t(packet->payload, 4) == htonl(0xFFFFFFFF)) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "maybe florensia -> stage is set to 1.\n"); + flow->florensia_stage = 1; + return; + } + if (packet->payload_packet_len == 406 && get_l16(packet->payload, 0) == packet->payload_packet_len + && packet->payload[2] == 0x63) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "maybe florensia -> stage is set to 1.\n"); + flow->florensia_stage = 1; + return; + } + if (packet->payload_packet_len == 12 && get_l16(packet->payload, 0) == packet->payload_packet_len + && get_u_int16_t(packet->payload, 2) == htons(0x0301)) { + if (flow->florensia_stage == 1) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "found florensia.\n"); + ndpi_florensia_add_connection(ndpi_struct, flow); + return; + } + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "maybe florensia -> stage is set to 1.\n"); + flow->florensia_stage = 1; + return; + } + + if (flow->florensia_stage == 1) { + if (packet->payload_packet_len == 8 && get_l16(packet->payload, 0) == packet->payload_packet_len + && get_u_int16_t(packet->payload, 2) == htons(0x0302) && get_u_int32_t(packet->payload, 4) == htonl(0xFFFFFFFF)) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "found florensia asymmetrically.\n"); + ndpi_florensia_add_connection(ndpi_struct, flow); + return; + } + if (packet->payload_packet_len == 24 && get_l16(packet->payload, 0) == packet->payload_packet_len + && get_u_int16_t(packet->payload, 2) == htons(0x0202) + && get_u_int32_t(packet->payload, packet->payload_packet_len - 4) == htonl(0xFFFFFFFF)) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "found florensia.\n"); + ndpi_florensia_add_connection(ndpi_struct, flow); + return; + } + if (flow->packet_counter < 10 && get_l16(packet->payload, 0) == packet->payload_packet_len) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "maybe florensia.\n"); + return; + } + } + } + + if (packet->udp != NULL) { + if (flow->florensia_stage == 0 && packet->payload_packet_len == 6 + && get_u_int16_t(packet->payload, 0) == ntohs(0x0503) && get_u_int32_t(packet->payload, 2) == htonl(0xFFFF0000)) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "maybe florensia -> stage is set to 1.\n"); + flow->florensia_stage = 1; + return; + } + if (flow->florensia_stage == 1 && packet->payload_packet_len == 8 + && get_u_int16_t(packet->payload, 0) == ntohs(0x0500) && get_u_int16_t(packet->payload, 4) == htons(0x4191)) { + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "found florensia.\n"); + ndpi_florensia_add_connection(ndpi_struct, flow); + return; + } + } + + NDPI_LOG(NDPI_PROTOCOL_FLORENSIA, ndpi_struct, NDPI_LOG_DEBUG, "exclude florensia.\n"); + NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_FLORENSIA); +} + +#endif |