mirror of
https://github.com/vel21ripn/nDPI.git
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97 lines
3 KiB
C
97 lines
3 KiB
C
/*
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* mudfish.c
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*
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* Copyright (C) 2011-26 - ntop.org
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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_protocol_ids.h"
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#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_MUDFISH
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#include "ndpi_api.h"
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#include "ndpi_private.h"
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static void ndpi_int_mudfish_add_connection(struct ndpi_detection_module_struct * const ndpi_struct,
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struct ndpi_flow_struct * const flow)
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{
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NDPI_LOG_INFO(ndpi_struct, "found Mudfish\n");
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ndpi_set_detected_protocol(ndpi_struct, flow,
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NDPI_PROTOCOL_MUDFISH,
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NDPI_PROTOCOL_UNKNOWN,
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NDPI_CONFIDENCE_DPI);
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}
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static void ndpi_search_mudfish(struct ndpi_detection_module_struct *ndpi_struct,
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struct ndpi_flow_struct *flow)
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{
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struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;
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NDPI_LOG_DBG(ndpi_struct, "search Mudfish\n");
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if (packet->udp != NULL)
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{
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if ((packet->udp->source < htons(10000) ||
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packet->udp->source > htons(10010)) &&
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(packet->udp->dest < htons(10000) ||
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packet->udp->dest > htons(10010)))
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{
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NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow);
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return;
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}
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// Mudfish ping
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if (packet->payload_packet_len == 1 &&
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packet->payload[0] == 0x50)
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{
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if (flow->packet_counter >= 2)
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ndpi_int_mudfish_add_connection(ndpi_struct, flow);
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return;
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}
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NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow);
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return;
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}
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// Mudfish discovery request
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if (packet->payload_packet_len == 7 &&
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get_u_int32_t(packet->payload, 0) == htonl(0x554e2076) &&
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get_u_int16_t(packet->payload, 4) == htons(0x320d) &&
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packet->payload[6] == 0x0a)
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{
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ndpi_int_mudfish_add_connection(ndpi_struct, flow);
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return;
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}
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// Check discovery response
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if (packet->payload_packet_len > 8 &&
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get_u_int32_t(packet->payload, 0) == htonl(0x554e2041) &&
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get_u_int32_t(packet->payload, 0) == htonl(0x465f494e))
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{
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ndpi_int_mudfish_add_connection(ndpi_struct, flow);
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return;
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}
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NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow);
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}
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void init_mudfish_dissector(struct ndpi_detection_module_struct *ndpi_struct)
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{
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register_dissector("Mudfish", ndpi_struct,
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ndpi_search_mudfish,
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NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_OR_UDP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
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1, NDPI_PROTOCOL_MUDFISH);
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}
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