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Add Apache Thrift protocol dissector.
Signed-off-by: Toni Uhlig <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| /* | ||
| * thrift.c | ||
| * | ||
| * Copyright (C) 2023 - 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_APACHE_THRIFT | ||
|
|
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| #include "ndpi_api.h" | ||
|
|
||
| #include <stdint.h> | ||
|
|
||
| PACK_ON | ||
| struct thrift_strict_hdr { | ||
| uint8_t protocol_id; | ||
| uint8_t version; | ||
| uint8_t unused_byte_pad; | ||
| uint8_t message_type; | ||
| uint32_t method_length; | ||
| } PACK_OFF; | ||
|
|
||
| PACK_ON | ||
| struct thrift_compact_hdr { | ||
| uint8_t protocol_id; | ||
| uint8_t message_type : 3; | ||
| uint8_t version : 5; | ||
| uint8_t sequence_id[3]; | ||
| uint8_t method_length; | ||
| } PACK_OFF; | ||
|
|
||
| static void ndpi_int_thrift_add_connection(struct ndpi_detection_module_struct *ndpi_struct, | ||
| struct ndpi_flow_struct *flow) | ||
| { | ||
| ndpi_set_detected_protocol(ndpi_struct, flow, | ||
| NDPI_PROTOCOL_APACHE_THRIFT, NDPI_PROTOCOL_UNKNOWN, | ||
| NDPI_CONFIDENCE_DPI); | ||
| } | ||
|
|
||
| static void ndpi_dissect_strict_hdr(struct ndpi_detection_module_struct *ndpi_struct, | ||
| struct ndpi_flow_struct *flow, | ||
| struct thrift_strict_hdr const * const strict_hdr) | ||
| { | ||
| /* TODO! */ | ||
| } | ||
|
|
||
| static void ndpi_dissect_compact_hdr(struct ndpi_detection_module_struct *ndpi_struct, | ||
| struct ndpi_flow_struct *flow, | ||
| struct thrift_compact_hdr const * const compact_hdr) | ||
| { | ||
| /* TODO! */ | ||
| } | ||
|
|
||
| static void ndpi_search_thrift_tcp_udp(struct ndpi_detection_module_struct *ndpi_struct, | ||
| struct ndpi_flow_struct *flow) | ||
| { | ||
| struct ndpi_packet_struct *packet = &ndpi_struct->packet; | ||
|
|
||
| if (flow->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP || | ||
| flow->detected_protocol_stack[1] == NDPI_PROTOCOL_HTTP) | ||
| { | ||
| /* Check Thrift over HTTP */ | ||
| if (packet->content_line.ptr != NULL) | ||
| { | ||
| if ((LINE_ENDS(packet->content_line, "application/vnd.apache.thrift.binary") != 0) || | ||
| (LINE_ENDS(packet->content_line, "application/vnd.apache.thrift.compact") != 0) || | ||
| (LINE_ENDS(packet->content_line, "application/vnd.apache.thrift.json") != 0)) | ||
| { | ||
| NDPI_LOG_INFO(ndpi_struct, "found Apache Thrift over HTTP\n"); | ||
| ndpi_int_thrift_add_connection(ndpi_struct, flow); | ||
| return; | ||
| } | ||
| } | ||
| } else if (packet->payload_packet_len >= sizeof(struct thrift_compact_hdr)) { | ||
| const struct { | ||
| const union { | ||
| uint8_t const * const raw_ptr; | ||
| struct thrift_strict_hdr const * const strict_hdr; | ||
| struct thrift_compact_hdr const * const compact_hdr; | ||
| }; | ||
| } thrift_data = { .raw_ptr = &packet->payload[0] }; | ||
|
|
||
| if (thrift_data.raw_ptr[0] == 0x80) | ||
| { | ||
| /* Strict Binary Protocol */ | ||
| if (packet->payload_packet_len < sizeof(*thrift_data.strict_hdr)) | ||
| { | ||
| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| return; | ||
| } | ||
|
|
||
| ndpi_dissect_strict_hdr(ndpi_struct, flow, thrift_data.strict_hdr); | ||
| return; | ||
| } else if (thrift_data.raw_ptr[0] != 0x82) { | ||
| /* Probably not Apache Thrift. */ | ||
| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| return; | ||
| } else { | ||
| /* Compact Protocol */ | ||
| ndpi_dissect_compact_hdr(ndpi_struct, flow, thrift_data.compact_hdr); | ||
| return; | ||
| } | ||
| } | ||
|
|
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| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| } | ||
|
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| void init_apache_thrift_dissector(struct ndpi_detection_module_struct *ndpi_struct, uint32_t *id) | ||
| { | ||
| ndpi_set_bitmask_protocol_detection("Thrift", ndpi_struct, *id, | ||
| NDPI_PROTOCOL_APACHE_THRIFT, | ||
| ndpi_search_thrift_tcp_udp, | ||
| NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_OR_UDP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION, | ||
| SAVE_DETECTION_BITMASK_AS_UNKNOWN, | ||
| ADD_TO_DETECTION_BITMASK); | ||
| *id += 1; | ||
| } |
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