diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/ndpi_private.h | 1 | ||||
| -rw-r--r-- | src/include/ndpi_protocol_ids.h | 1 | ||||
| -rw-r--r-- | src/lib/ndpi_main.c | 7 | ||||
| -rw-r--r-- | src/lib/protocols/pfcp.c | 72 |
4 files changed, 81 insertions, 0 deletions
diff --git a/src/include/ndpi_private.h b/src/include/ndpi_private.h index f86bb7d53..bb704e63e 100644 --- a/src/include/ndpi_private.h +++ b/src/include/ndpi_private.h @@ -913,6 +913,7 @@ void init_dlep_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int void init_bfd_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id); void init_netease_games_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id); void init_pathofexile_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id); +void init_pfcp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id); #endif diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h index 7ee45bc0c..37ed8a57c 100644 --- a/src/include/ndpi_protocol_ids.h +++ b/src/include/ndpi_protocol_ids.h @@ -433,6 +433,7 @@ typedef enum { NDPI_PROTOCOL_NETEASE_GAMES = 402, NDPI_PROTOCOL_PATHOFEXILE = 403, NDPI_PROTOCOL_GOOGLE_CALL = 404, /* Voip/audio/video calls from Google Chat/Meet/... */ + NDPI_PROTOCOL_PFCP = 405, #ifdef CUSTOM_NDPI_PROTOCOLS #include "../../../nDPI-custom/custom_ndpi_protocol_ids.h" diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c index 15c7f055a..c3f7fc0bf 100644 --- a/src/lib/ndpi_main.c +++ b/src/lib/ndpi_main.c @@ -2271,6 +2271,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp "PathofExile", 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, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_PFCP, + "PFCP", NDPI_PROTOCOL_CATEGORY_NETWORK, + ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */, + ndpi_build_default_ports(ports_b, 8805, 0, 0, 0, 0) /* UDP */); #ifdef CUSTOM_NDPI_PROTOCOLS #include "../../../nDPI-custom/custom_ndpi_main.c" @@ -6127,6 +6131,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) { /* Path of Exile */ init_pathofexile_dissector(ndpi_str, &a); + /* Packet Forwarding Control Protocol */ + init_pfcp_dissector(ndpi_str, &a); + #ifdef CUSTOM_NDPI_PROTOCOLS #include "../../../nDPI-custom/custom_ndpi_main_init.c" #endif diff --git a/src/lib/protocols/pfcp.c b/src/lib/protocols/pfcp.c new file mode 100644 index 000000000..636b403bd --- /dev/null +++ b/src/lib/protocols/pfcp.c @@ -0,0 +1,72 @@ +/* + * pfcp.c + * + * Packet Forwarding Control Protocol + * + * Copyright (C) 2024 - ntop.org + * Copyright (C) 2024 - V.G <jacendi@protonmail.com> + * + * 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_PFCP + +#include "ndpi_api.h" +#include "ndpi_private.h" + +static void ndpi_search_pfcp(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 PFCP\n"); + + if (packet->payload_packet_len > 12 && + (ntohs(packet->udp->dest) == 8805 || ntohs(packet->udp->source) == 8805)) + { + u_int8_t version = packet->payload[0] & 0x0F; + /* Values from 18 to 49, 58 to 99 and 100 to 255 are reserved for future use + * and aren't used now. */ + u_int8_t message_type = packet->payload[1]; + if (version == 1 && (message_type <= 17 || (message_type - 50) <= 7) && + ntohs(get_u_int16_t(packet->payload, 2)) == (u_int16_t)(packet->payload_packet_len-4)) + { + NDPI_LOG_INFO(ndpi_struct, "found PFCP\n"); + ndpi_set_detected_protocol(ndpi_struct, flow, + NDPI_PROTOCOL_PFCP, NDPI_PROTOCOL_UNKNOWN, + NDPI_CONFIDENCE_DPI); + return; + } + } + + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); +} +void init_pfcp_dissector(struct ndpi_detection_module_struct *ndpi_struct, + u_int32_t *id) +{ + ndpi_set_bitmask_protocol_detection("PFCP", ndpi_struct, *id, + NDPI_PROTOCOL_PFCP, + ndpi_search_pfcp, + NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK); + + *id += 1; +} |