diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/ndpi_protocol_ids.h | 1 | ||||
| -rw-r--r-- | src/include/ndpi_protocols.h | 1 | ||||
| -rw-r--r-- | src/lib/ndpi_main.c | 7 | ||||
| -rw-r--r-- | src/lib/protocols/crynet.c | 81 |
4 files changed, 90 insertions, 0 deletions
diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h index 68d110041..a634019d1 100644 --- a/src/include/ndpi_protocol_ids.h +++ b/src/include/ndpi_protocol_ids.h @@ -342,6 +342,7 @@ typedef enum { NDPI_PROTOCOL_FTPS = 311, NDPI_PROTOCOL_NATPMP = 312, NDPI_PROTOCOL_SYNCTHING = 313, + NDPI_PROTOCOL_CRYNET = 314, #ifdef CUSTOM_NDPI_PROTOCOLS #include "../../../nDPI-custom/custom_ndpi_protocol_ids.h" diff --git a/src/include/ndpi_protocols.h b/src/include/ndpi_protocols.h index 69aa391db..86751c262 100644 --- a/src/include/ndpi_protocols.h +++ b/src/include/ndpi_protocols.h @@ -242,6 +242,7 @@ void init_kismet_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_i void init_fastcgi_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask); void init_natpmp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask); void init_syncthing_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask); +void init_crynet_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask); /* ndpi_main.c */ extern u_int32_t ndpi_ip_port_hash_funct(u_int32_t ip, u_int16_t port); diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c index 0f56676d0..e76adc1d2 100644 --- a/src/lib/ndpi_main.c +++ b/src/lib/ndpi_main.c @@ -1986,6 +1986,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp "Syncthing", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT, ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */, ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */); + ndpi_set_proto_defaults(ndpi_str, 0 /* encrypted */, 0 /* nw proto */, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_CRYNET, + "CryNetwork", NDPI_PROTOCOL_CATEGORY_GAME, + ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */, + ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */); #ifdef CUSTOM_NDPI_PROTOCOLS #include "../../../nDPI-custom/custom_ndpi_main.c" @@ -4591,6 +4595,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) { /* Syncthing */ init_syncthing_dissector(ndpi_str, &a, detection_bitmask); + /* CryNetwork */ + init_crynet_dissector(ndpi_str, &a, detection_bitmask); + #ifdef CUSTOM_NDPI_PROTOCOLS #include "../../../nDPI-custom/custom_ndpi_main_init.c" #endif diff --git a/src/lib/protocols/crynet.c b/src/lib/protocols/crynet.c new file mode 100644 index 000000000..2b7203b1f --- /dev/null +++ b/src/lib/protocols/crynet.c @@ -0,0 +1,81 @@ +/* + * crynet.c + * + * Copyright (C) 2022 - 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_CRYNET + +#include "ndpi_api.h" + +static void ndpi_int_crynet_add_connection(struct ndpi_detection_module_struct * const ndpi_struct, + struct ndpi_flow_struct * const flow) +{ + NDPI_LOG_INFO(ndpi_struct, "found crynetwork\n"); + ndpi_set_detected_protocol(ndpi_struct, flow, + NDPI_PROTOCOL_CRYNET, + NDPI_PROTOCOL_UNKNOWN, + NDPI_CONFIDENCE_DPI); +} + +void ndpi_search_crynet(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 crynetwork\n"); + + if (packet->payload_packet_len < 26) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + if (packet->payload_packet_len != packet->payload[0] + 10) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + if (ntohs(get_u_int16_t(packet->payload, 3)) != 0x08ed || + packet->payload[16] != 0x01 || + packet->payload[20] != 0x07 || + ntohs(get_u_int16_t(packet->payload, 24)) != 0x0307) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + ndpi_int_crynet_add_connection(ndpi_struct, flow); +} + +void init_crynet_dissector(struct ndpi_detection_module_struct *ndpi_struct, + u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) +{ + ndpi_set_bitmask_protocol_detection("CryNetwork", ndpi_struct, detection_bitmask, *id, + NDPI_PROTOCOL_CRYNET, + ndpi_search_crynet, + NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK + ); + + *id += 1; +} |