diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/ndpi_main.c | 7 | ||||
| -rw-r--r-- | src/lib/protocols/ultrasurf.c | 72 |
2 files changed, 79 insertions, 0 deletions
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c index 54d334566..47012f93f 100644 --- a/src/lib/ndpi_main.c +++ b/src/lib/ndpi_main.c @@ -1934,6 +1934,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */); ndpi_set_proto_defaults(ndpi_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RIOTGAMES, "RiotGames", 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 */); + ndpi_set_proto_defaults(ndpi_str, 0 /* encrypted */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_ULTRASURF, + "UltraSurf", NDPI_PROTOCOL_CATEGORY_VPN, ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */, ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */); @@ -4447,6 +4451,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) { /* RiotGames */ init_riotgames_dissector(ndpi_str, &a, detection_bitmask); + /* UltraSurf */ + init_ultrasurf_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/ultrasurf.c b/src/lib/protocols/ultrasurf.c new file mode 100644 index 000000000..a0c7cdd4e --- /dev/null +++ b/src/lib/protocols/ultrasurf.c @@ -0,0 +1,72 @@ +/* + * ultrasurf.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_ULTRASURF + +#include "ndpi_api.h" + +static void ndpi_int_ultrasurf_add_connection(struct ndpi_detection_module_struct * const ndpi_struct, + struct ndpi_flow_struct * const flow) +{ + NDPI_LOG_INFO(ndpi_struct, "found UltraSurf\n"); + ndpi_set_detected_protocol(ndpi_struct, flow, + NDPI_PROTOCOL_ULTRASURF, + NDPI_PROTOCOL_UNKNOWN, + NDPI_CONFIDENCE_DPI); +} + +void ndpi_search_ultrasurf(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 UltraSurf\n"); + + if (packet->payload_packet_len < 8) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + if (htonl(get_u_int32_t(packet->payload, 0)) == 0xcc1c3041 && + htonl(get_u_int32_t(packet->payload, 4)) == 0x5ba43866) + { + ndpi_int_ultrasurf_add_connection(ndpi_struct, flow); + } + + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); +} + +void init_ultrasurf_dissector(struct ndpi_detection_module_struct *ndpi_struct, + u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) +{ + ndpi_set_bitmask_protocol_detection("UltraSurf", ndpi_struct, detection_bitmask, *id, + NDPI_PROTOCOL_ULTRASURF, + ndpi_search_ultrasurf, + NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK + ); + + *id += 1; +} |