/* * 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 . * */ #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); } /* ************************************************************************** */ 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->udp && (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 { 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); } /* ************************************************************************** */ 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->tcp && (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)) { 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 */) { 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 flow->guessed_protocol_id = NDPI_PROTOCOL_MINING; } 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"} */ 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} */ 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 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_tcp, NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION, SAVE_DETECTION_BITMASK_AS_UNKNOWN, ADD_TO_DETECTION_BITMASK); *id += 1; /* ************ */ ndpi_set_bitmask_protocol_detection("Mining", ndpi_struct, detection_bitmask, *id, NDPI_PROTOCOL_MINING, ndpi_search_mining_udp, NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD, SAVE_DETECTION_BITMASK_AS_UNKNOWN, ADD_TO_DETECTION_BITMASK); *id += 1; }