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/*
* mining.c [ZCash, Monero]
*
* Copyright (C) 2018-22 - 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_protocol_ids.h"
#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_MINING
#include "ndpi_api.h"
#include "ndpi_private.h"
/* ************************************************************************** */
u_int32_t make_mining_key(struct ndpi_flow_struct *flow) {
u_int32_t key;
/* network byte order */
if(flow->is_ipv6)
key = ndpi_quick_hash(flow->c_address.v6, 16) + ndpi_quick_hash(flow->s_address.v6, 16);
else
key = flow->c_address.v4 + flow->s_address.v4;
return key;
}
/* ************************************************************************** */
static void cacheMiningHostTwins(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
if(ndpi_struct->mining_cache)
ndpi_lru_add_to_cache(ndpi_struct->mining_cache, make_mining_key(flow), NDPI_PROTOCOL_MINING, ndpi_get_current_time(flow));
}
/* ************************************************************************** */
static void ndpi_search_mining(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
struct ndpi_packet_struct *packet = &ndpi_struct->packet;
NDPI_LOG_DBG(ndpi_struct, "search MINING\n");
if(packet->payload_packet_len > 10) {
if(ndpi_strnstr((const char *)packet->payload, "{", packet->payload_packet_len)
&& (ndpi_strnstr((const char *)packet->payload, "\"method\":", packet->payload_packet_len)
|| ndpi_strnstr((const char *)packet->payload, "\"blob\":", packet->payload_packet_len)
/* || ndpi_strnstr((const char *)packet->payload, "\"id\":", packet->payload_packet_len) - Removed as too generic */
)
) {
/*
ZCash
{"method":"login","params":{"login":"4BCeEPhodgPMbPWFN1dPwhWXdRX8q4mhhdZdA1dtSMLTLCEYvAj9QXjXAfF7CugEbmfBhgkqHbdgK9b2wKA6nqRZQCgvCDm.cb2b73415c4faf214035a73b9d947c202342f3bf3bdf632132bd6d7af98cb257.ryzen","pass":"x","agent":"xmr-stak-cpu/1.3.0-1.5.0"},"id":1}
{"id":1,"jsonrpc":"2.0","error":null,"result":{"id":"479059546883218","job":{"blob":"0606e89883d205a65d8ee78991838a1cf3ec2ebbc5fb1fa43dec5fa1cd2bee4069212a549cd731000000005a88235653097aa3e97ef2ceef4aee610751a828f9be1a0758a78365fb0a4c8c05","job_id":"722134174127131","target":"dc460300"},"status":"OK"}}
{"method":"submit","params":{"id":"479059546883218","job_id":"722134174127131","nonce":"98024001","result":"c9be9381a68d533c059d614d961e0534d7d8785dd5c339c2f9596eb95f320100"},"id":1}
Monero
{"method":"login","params":{"login":"4BCeEPhodgPMbPWFN1dPwhWXdRX8q4mhhdZdA1dtSMLTLCEYvAj9QXjXAfF7CugEbmfBhgkqHbdgK9b2wKA6nqRZQCgvCDm.cb2b73415c4faf214035a73b9d947c202342f3bf3bdf632132bd6d7af98cb257.ryzen","pass":"x","agent":"xmr-stak-cpu/1.3.0-1.5.0"},"id":1}
{"id":1,"jsonrpc":"2.0","error":null,"result":{"id":"479059546883218","job":{"blob":"0606e89883d205a65d8ee78991838a1cf3ec2ebbc5fb1fa43dec5fa1cd2bee4069212a549cd731000000005a88235653097aa3e97ef2ceef4aee610751a828f9be1a0758a78365fb0a4c8c05","job_id":"722134174127131","target":"dc460300"},"status":"OK"}}
{"method":"submit","params":{"id":"479059546883218","job_id":"722134174127131","nonce":"98024001","result":"c9be9381a68d533c059d614d961e0534d7d8785dd5c339c2f9596eb95f320100"},"id":1}
*/
ndpi_snprintf(flow->protos.mining.currency, sizeof(flow->protos.mining.currency), "%s", "ZCash/Monero");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
cacheMiningHostTwins(ndpi_struct, flow);
return;
}
}
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
}
/* ************************************************************************** */
void init_mining_dissector(struct ndpi_detection_module_struct *ndpi_struct,
u_int32_t *id)
{
ndpi_set_bitmask_protocol_detection("Mining", ndpi_struct, *id,
NDPI_PROTOCOL_MINING,
ndpi_search_mining,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);
*id += 1;
}
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