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Signed-off-by: lns <[email protected]> Signed-off-by: Toni Uhlig <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /* | ||
| * oicq.c | ||
| * | ||
| * OICQ / Tencent QQ | ||
| * | ||
| * Copyright (C) 2023 - 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" | ||
|
|
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| #define NDPI_CURRENT_PROTO NDPI_PROTOCOL_OICQ | ||
|
|
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| #include "ndpi_api.h" | ||
|
|
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| PACK_ON | ||
| struct oicq_hdr { | ||
| uint8_t flag; | ||
| uint16_t version; | ||
| uint16_t command; | ||
| uint16_t sequence; | ||
| } PACK_OFF; | ||
|
|
||
| static void ndpi_int_oicq_add_connection(struct ndpi_detection_module_struct * const ndpi_struct, | ||
| struct ndpi_flow_struct * const flow) | ||
| { | ||
| NDPI_LOG_INFO(ndpi_struct, "found OICQ\n"); | ||
|
|
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| ndpi_set_detected_protocol(ndpi_struct, flow, | ||
| NDPI_PROTOCOL_OICQ, | ||
| NDPI_PROTOCOL_UNKNOWN, | ||
| NDPI_CONFIDENCE_DPI); | ||
| } | ||
|
|
||
| /* ***************************************************** */ | ||
|
|
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| static void ndpi_search_oicq(struct ndpi_detection_module_struct *ndpi_struct, | ||
| struct ndpi_flow_struct *flow) | ||
| { | ||
| struct ndpi_packet_struct const * const packet = &ndpi_struct->packet; | ||
| struct oicq_hdr const * const hdr = (struct oicq_hdr *)&packet->payload[0]; | ||
|
|
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| NDPI_LOG_DBG(ndpi_struct, "search OICQ\n"); | ||
|
|
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| if (packet->payload_packet_len < sizeof(*hdr)) | ||
| { | ||
| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| return; | ||
| } | ||
|
|
||
| if (hdr->flag != 0x02) | ||
| { | ||
| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| return; | ||
| } | ||
|
|
||
| if (ntohs(hdr->version) != 0x3b0b) | ||
| { | ||
| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| return; | ||
| } | ||
|
|
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| uint16_t command = ntohs(hdr->command); | ||
| if (command == 0x0000 || (command > 0x00b5 && command < 0x03f7) || | ||
| command > 0x03f7) | ||
| { | ||
| NDPI_EXCLUDE_PROTO(ndpi_struct, flow); | ||
| return; | ||
| } | ||
|
|
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| ndpi_int_oicq_add_connection(ndpi_struct, flow); | ||
| } | ||
|
|
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| /* ***************************************************** */ | ||
|
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| void init_oicq_dissector(struct ndpi_detection_module_struct *ndpi_struct, | ||
| u_int32_t *id) | ||
| { | ||
| ndpi_set_bitmask_protocol_detection("OICQ", ndpi_struct, *id, | ||
| NDPI_PROTOCOL_OICQ, | ||
| ndpi_search_oicq, | ||
| NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_UDP_WITH_PAYLOAD, | ||
| SAVE_DETECTION_BITMASK_AS_UNKNOWN, | ||
| ADD_TO_DETECTION_BITMASK | ||
| ); | ||
|
|
||
| *id += 1; | ||
| } |
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