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/*
* zmq.c
*
* Copyright (C) 2016-22 - ntop.org
*
* 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_protocol_ids.h"
#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_ZMQ
#include "ndpi_api.h"
#include "ndpi_private.h"
static const u_int8_t zmtp_signature[] = { 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x7F };
static void ndpi_search_zmq(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;
NDPI_LOG_DBG(ndpi_struct, "search ZMQ\n");
if (packet->payload_packet_len > 9) {
if (memcmp(packet->payload, zmtp_signature, sizeof(zmtp_signature)) == 0) {
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_ZMQ,
NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
NDPI_LOG_INFO(ndpi_struct, "found ZMQ\n");
return;
}
}
NDPI_EXCLUDE_DISSECTOR(ndpi_struct, flow);
}
void init_zmq_dissector(struct ndpi_detection_module_struct *ndpi_struct)
{
register_dissector("ZeroMQ", ndpi_struct,
ndpi_search_zmq,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
1, NDPI_PROTOCOL_ZMQ);
}
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