diff options
| author | Maatuq <mahmoudmatook.mm@gmail.com> | 2023-05-31 09:31:01 +0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-05-31 07:31:01 +0200 |
| commit | e17fa1259aa3b2fb4a6479188ac98fb826967848 (patch) | |
| tree | a014031cdec592bdf1009fb574f192614eb65765 /src/lib/protocols/bitcoin.c | |
| parent | a8d2eeddd207d5bf70575045d632e235dcab2533 (diff) | |
Add bitcoing protocol dissector. (#1992)
* Add bitcoing protocol dissector.
* remove bitcoin protcol detection from mining.c
* add a new bitcoin deissector.
* add a new category: Cryptocurrency.
Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
* Remove useless checks and add missing windows and docs file.
Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
* update affected tests.
Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
* add a brief version.
Add notes on the difference between normal bitcoin protocol and the
mining protocol.
Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
* update enable_payload_stat test after dev rebasing.
Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
---------
Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
Diffstat (limited to 'src/lib/protocols/bitcoin.c')
| -rw-r--r-- | src/lib/protocols/bitcoin.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/lib/protocols/bitcoin.c b/src/lib/protocols/bitcoin.c new file mode 100644 index 000000000..2154e912a --- /dev/null +++ b/src/lib/protocols/bitcoin.c @@ -0,0 +1,71 @@ +/* + * bitcoin.c + * + * Copyright (C) 2018-23 - 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_BITCOIN +#include "ndpi_api.h" + +/*https://en.bitcoin.it/wiki/Protocol_documentation*/ +#define MAIN_NET_MAGIC 0xF9BEB4D9 +#define TEST_NET_MAGIC 0xFABFB5DA +#define TEST_3_NET_MAGIC 0x0B110907 +#define SIG_NET_MAGIC 0x0A03CF40 +#define NAME_COIN_NET_MAGIC 0xF9BEB4FE + +static void ndpi_search_bitcoin(struct ndpi_detection_module_struct *ndpi_struct, + struct ndpi_flow_struct *flow) { + NDPI_LOG_DBG(ndpi_struct, "search BITCOIN\n"); + struct ndpi_packet_struct *packet = &ndpi_struct->packet; + if(packet->payload_packet_len >= 4) { + if(packet->tcp->source == htons(8333) || + packet->tcp->dest == htons(8333)) { + u_int32_t ntoh_to_match = ntohl(*(u_int32_t*)packet->payload); + switch (ntoh_to_match) { + case MAIN_NET_MAGIC: + case TEST_NET_MAGIC: + case TEST_3_NET_MAGIC: + case SIG_NET_MAGIC: + case NAME_COIN_NET_MAGIC: + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_BITCOIN, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); + NDPI_LOG_INFO(ndpi_struct, "found BITCOIN\n"); + return; + } + } + } + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); +} + +/* ************************************************************************** */ + +void init_bitcoin_dissector(struct ndpi_detection_module_struct *ndpi_struct, + u_int32_t *id) +{ + ndpi_set_bitmask_protocol_detection("Bitcoin", ndpi_struct, *id, + NDPI_PROTOCOL_BITCOIN, + ndpi_search_bitcoin, + NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK); + + *id += 1; +} + |