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/*
* mining.c [Bitcoin, Ethereum, 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"
/* ************************************************************************** */
static void cacheMiningHostTwins(struct ndpi_detection_module_struct *ndpi_struct,
u_int32_t host_keys /* network byte order */) {
if(ndpi_struct->mining_cache == NULL) ndpi_struct->mining_cache = ndpi_lru_cache_init(1024);
if(ndpi_struct->mining_cache)
ndpi_lru_add_to_cache(ndpi_struct->mining_cache, host_keys, NDPI_PROTOCOL_MINING);
}
/* ************************************************************************** */
static void ndpi_search_mining_udp(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
struct ndpi_packet_struct *packet = &ndpi_struct->packet;
u_int16_t source = ntohs(packet->udp->source);
u_int16_t dest = ntohs(packet->udp->dest);
NDPI_LOG_DBG(ndpi_struct, "search MINING UDP\n");
// printf("==> %s()\n", __FUNCTION__);
/*
Ethereum P2P Discovery Protocol
https://github.com/ConsenSys/ethereum-dissectors/blob/master/packet-ethereum-disc.c
*/
if((packet->payload_packet_len > 98)
&& (packet->payload_packet_len < 1280)
&& ((source == 30303) || (dest == 30303))
&& (packet->payload[97] <= 0x04 /* NODES */)
) {
if((packet->iph) && ((ntohl(packet->iph->daddr) & 0xFF000000 /* 255.0.0.0 */) == 0xFF000000))
;
else if(packet->iphv6 && ntohl(packet->iphv6->ip6_dst.u6_addr.u6_addr32[0]) == 0xFF020000)
;
else {
ndpi_snprintf(flow->flow_extra_info, sizeof(flow->flow_extra_info), "%s", "ETH");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
if(packet->iph) /* TODO: ipv6 */
cacheMiningHostTwins(ndpi_struct, packet->iph->saddr + packet->iph->daddr);
return;
}
}
ndpi_exclude_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, __FILE__, __FUNCTION__, __LINE__);
}
/* ************************************************************************** */
static u_int8_t isEthPort(u_int16_t dport) {
return(((dport >= 30300) && (dport <= 30305)) ? 1 : 0);
}
/* ************************************************************************** */
static void ndpi_search_mining_tcp(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 TCP\n");
/* Check connection over TCP */
if(packet->payload_packet_len > 10) {
if(packet->tcp->source == htons(8333) ||
packet->tcp->dest == htons(8333)) {
/*
Bitcoin
bitcoin.magic == 0xf9beb4d9 || bitcoin.magic == 0xfabfb5da
*/
u_int32_t magic = htonl(0xf9beb4d9), magic1 = htonl(0xfabfb5da), *to_match = (u_int32_t*)packet->payload;
if((*to_match == magic) || (*to_match == magic1)) {
ndpi_snprintf(flow->flow_extra_info, sizeof(flow->flow_extra_info), "%s", "ETH");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
if(packet->iph) /* TODO: ipv6 */
cacheMiningHostTwins(ndpi_struct, packet->iph->saddr + packet->iph->daddr);
return;
}
}
if((packet->payload_packet_len > 300)
&& (packet->payload_packet_len < 600)
&& (packet->payload[2] == 0x04)) {
if(isEthPort(ntohs(packet->tcp->dest)) /* Ethereum port */) {
ndpi_snprintf(flow->flow_extra_info, sizeof(flow->flow_extra_info), "%s", "ETH");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
if(packet->iph) /* TODO: ipv6 */
cacheMiningHostTwins(ndpi_struct, packet->iph->saddr + packet->iph->daddr);
return;
}
} else if(ndpi_strnstr((const char *)packet->payload, "{", packet->payload_packet_len)
&& (
ndpi_strnstr((const char *)packet->payload, "\"eth1.0\"", packet->payload_packet_len)
|| ndpi_strnstr((const char *)packet->payload, "\"worker\":", packet->payload_packet_len)
/* || ndpi_strnstr((const char *)packet->payload, "\"id\":", packet->payload_packet_len) - Removed as too generic */
)) {
/*
Ethereum
{"worker": "eth1.0", "jsonrpc": "2.0", "params": ["0x0fccfff9e61a230ff380530c6827caf4759337c6.rig2", "x"], "id": 2, "method": "eth_submitLogin"}
{ "id": 2, "jsonrpc":"2.0","result":true}
{"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}
*/
ndpi_snprintf(flow->flow_extra_info, sizeof(flow->flow_extra_info), "%s", "ETH");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
if(packet->iph) /* TODO: ipv6 */
cacheMiningHostTwins(ndpi_struct, packet->iph->saddr + packet->iph->daddr);
return;
} else 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->flow_extra_info, sizeof(flow->flow_extra_info), "%s", "ZCash/Monero");
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
if(packet->iph) /* TODO: ipv6 */
cacheMiningHostTwins(ndpi_struct, packet->iph->saddr + packet->iph->daddr);
return;
}
}
ndpi_exclude_protocol(ndpi_struct, flow, NDPI_PROTOCOL_MINING, __FILE__, __FUNCTION__, __LINE__);
}
/* ************************************************************************** */
void ndpi_search_mining(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
struct ndpi_packet_struct *packet = &ndpi_struct->packet;
if(packet->tcp)
return ndpi_search_mining_tcp(ndpi_struct, flow);
return ndpi_search_mining_udp(ndpi_struct, flow);
}
/* ************************************************************************** */
void init_mining_dissector(struct ndpi_detection_module_struct *ndpi_struct,
u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
{
ndpi_set_bitmask_protocol_detection("Mining", ndpi_struct, detection_bitmask, *id,
NDPI_PROTOCOL_MINING,
ndpi_search_mining,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_OR_UDP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);
*id += 1;
}
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