9b36dd9d99
9ed2fa80d fix(toxav): remove extra copy of video frame on encode de30cf3ad docs: Add new file kinds, that should be useful to all clients. d5b5e879d fix(DHT): Correct node skipping logic timed out nodes. 30e71fe97 refactor: Generate event dispatch functions and add tox_events_dispatch. 8fdbb0b50 style: Format parameter lists in event handlers. d00dee12b refactor: Add warning logs when losing chat invites. b144e8db1 feat: Add a way to look up a file number by ID. 849281ea0 feat: Add a way to fetch groups by chat ID. a2c177396 refactor: Harden event system and improve type safety. 8f5caa656 refactor: Add MessagePack string support to bin_pack. 34e8d5ad5 chore: Add GitHub CodeQL workflow and local Docker runner. f7b068010 refactor: Add nullability annotations to event headers. 788abe651 refactor(toxav): Use system allocator for mutexes. 2e4b423eb refactor: Use specific typedefs for public API arrays. 2baf34775 docs(toxav): update idle iteration interval see 679444751876fa3882a717772918ebdc8f083354 2f87ac67b feat: Add Event Loop abstraction (Ev). f8dfc38d8 test: Fix data race in ToxScenario virtual_clock. 38313921e test(TCP): Add regression test for TCP priority queue integrity. f94a50d9a refactor(toxav): Replace mutable_mutex with dynamically allocated mutex. ad054511e refactor: Internalize DHT structs and add debug helpers. 8b467cc96 fix: Prevent potential integer overflow in group chat handshake. 4962bdbb8 test: Improve TCP simulation and add tests 5f0227093 refactor: Allow nullable data in group chat handlers. e97b18ea9 chore: Improve Windows Docker support. b14943bbd refactor: Move Logger out of Messenger into Tox. dd3136250 cleanup: Apply nullability qualifiers to C++ codebase. 1849f70fc refactor: Extract low-level networking code to net and os_network. 8fec75421 refactor: Delete tox_random, align on rng and os_random. a03ae8051 refactor: Delete tox_memory, align on mem and os_memory. 4c88fed2c refactor: Use `std::` prefixes more consistently in C++ code. 72452f2ae test: Add some more tests for onion and shared key cache. d5a51b09a cleanup: Use tox_attributes.h in tox_private.h and install it. b6f5b9fc5 test: Add some benchmarks for various high level things. 8a8d02785 test(support): Introduce threaded Tox runner and simulation barrier d68d1d095 perf(toxav): optimize audio and video intermediate buffers by keeping them around REVERT: c9cdae001 fix(toxav): remove extra copy of video frame on encode git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: 9ed2fa80d582c714d6bdde6a7648220a92cddff8
142 lines
5.9 KiB
C
142 lines
5.9 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2016-2025 The TokTok team.
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* Copyright © 2014 Tox project.
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*/
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/**
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* Implementation of the TCP relay client part of Tox.
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*/
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#ifndef C_TOXCORE_TOXCORE_TCP_CLIENT_H
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#define C_TOXCORE_TOXCORE_TCP_CLIENT_H
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#include <stdint.h>
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#include "attributes.h"
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#include "crypto_core.h"
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#include "forwarding.h"
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#include "logger.h"
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#include "mem.h"
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#include "mono_time.h"
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#include "net.h"
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#include "net_profile.h"
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#include "network.h"
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#include "rng.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define TCP_CONNECTION_TIMEOUT 10
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typedef enum TCP_Proxy_Type {
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TCP_PROXY_NONE,
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TCP_PROXY_HTTP,
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TCP_PROXY_SOCKS5,
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} TCP_Proxy_Type;
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typedef struct TCP_Proxy_Info {
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IP_Port ip_port;
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uint8_t proxy_type; // a value from TCP_PROXY_TYPE
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} TCP_Proxy_Info;
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typedef enum TCP_Client_Status {
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TCP_CLIENT_NO_STATUS,
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TCP_CLIENT_PROXY_HTTP_CONNECTING,
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TCP_CLIENT_PROXY_SOCKS5_CONNECTING,
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TCP_CLIENT_PROXY_SOCKS5_UNCONFIRMED,
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TCP_CLIENT_CONNECTING,
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TCP_CLIENT_UNCONFIRMED,
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TCP_CLIENT_CONFIRMED,
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TCP_CLIENT_DISCONNECTED,
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} TCP_Client_Status;
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typedef struct TCP_Client_Connection TCP_Client_Connection;
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const uint8_t *_Nonnull tcp_con_public_key(const TCP_Client_Connection *_Nonnull con);
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IP_Port tcp_con_ip_port(const TCP_Client_Connection *_Nonnull con);
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TCP_Client_Status tcp_con_status(const TCP_Client_Connection *_Nonnull con);
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void *_Nullable tcp_con_custom_object(const TCP_Client_Connection *_Nonnull con);
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uint32_t tcp_con_custom_uint(const TCP_Client_Connection *_Nonnull con);
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void tcp_con_set_custom_object(TCP_Client_Connection *_Nonnull con, void *_Nonnull object);
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void tcp_con_set_custom_uint(TCP_Client_Connection *_Nonnull con, uint32_t value);
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/** Create new TCP connection to ip_port/public_key */
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TCP_Client_Connection *_Nullable new_tcp_connection(
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const Logger *_Nonnull logger, const Memory *_Nonnull mem, const Mono_Time *_Nonnull mono_time, const Random *_Nonnull rng, const Network *_Nonnull ns,
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const IP_Port *_Nonnull ip_port, const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull self_public_key, const uint8_t *_Nonnull self_secret_key,
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const TCP_Proxy_Info *_Nullable proxy_info, Net_Profile *_Nullable net_profile);
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/** Run the TCP connection */
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void do_tcp_connection(const Logger *_Nonnull logger, const Mono_Time *_Nonnull mono_time,
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TCP_Client_Connection *_Nonnull tcp_connection, void *_Nullable userdata);
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/** Kill the TCP connection */
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void kill_tcp_connection(TCP_Client_Connection *_Nullable tcp_connection);
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typedef int tcp_onion_response_cb(void *_Nonnull object, const uint8_t *_Nonnull data, uint16_t length, void *_Nullable userdata);
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/**
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* @retval 1 on success.
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* @retval 0 if could not send packet.
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* @retval -1 on failure (connection must be killed).
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*/
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int send_onion_request(const Logger *_Nonnull logger, TCP_Client_Connection *_Nonnull con, const uint8_t *_Nonnull data, uint16_t length);
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void onion_response_handler(TCP_Client_Connection *_Nonnull con, tcp_onion_response_cb *_Nonnull onion_callback, void *_Nonnull object);
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int send_forward_request_tcp(const Logger *_Nonnull logger, TCP_Client_Connection *_Nonnull con, const IP_Port *_Nonnull dest, const uint8_t *_Nonnull data, uint16_t length);
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void forwarding_handler(TCP_Client_Connection *_Nonnull con, forwarded_response_cb *_Nonnull forwarded_response_callback, void *_Nonnull object);
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typedef int tcp_routing_response_cb(void *_Nonnull object, uint8_t connection_id, const uint8_t *_Nonnull public_key);
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typedef int tcp_routing_status_cb(void *_Nonnull object, uint32_t number, uint8_t connection_id, uint8_t status);
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/**
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* @retval 1 on success.
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* @retval 0 if could not send packet.
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* @retval -1 on failure (connection must be killed).
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*/
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int send_routing_request(const Logger *_Nonnull logger, TCP_Client_Connection *_Nonnull con, const uint8_t *_Nonnull public_key);
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void routing_response_handler(TCP_Client_Connection *_Nonnull con, tcp_routing_response_cb *_Nonnull response_callback, void *_Nonnull object);
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void routing_status_handler(TCP_Client_Connection *_Nonnull con, tcp_routing_status_cb *_Nonnull status_callback, void *_Nonnull object);
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/**
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* @retval 1 on success.
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* @retval 0 if could not send packet.
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* @retval -1 on failure (connection must be killed).
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*/
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int send_disconnect_request(const Logger *_Nonnull logger, TCP_Client_Connection *_Nonnull con, uint8_t con_id);
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/** @brief Set the number that will be used as an argument in the callbacks related to con_id.
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*
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* When not set by this function, the number is -1.
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*
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* return 0 on success.
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* return -1 on failure.
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*/
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int set_tcp_connection_number(TCP_Client_Connection *_Nonnull con, uint8_t con_id, uint32_t number);
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typedef int tcp_routing_data_cb(void *_Nonnull object, uint32_t number, uint8_t connection_id, const uint8_t *_Nonnull data,
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uint16_t length, void *_Nullable userdata);
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/**
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* @retval 1 on success.
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* @retval 0 if could not send packet.
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* @retval -1 on failure.
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*/
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int send_data(const Logger *_Nonnull logger, TCP_Client_Connection *_Nonnull con, uint8_t con_id, const uint8_t *_Nonnull data, uint16_t length);
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void routing_data_handler(TCP_Client_Connection *_Nonnull con, tcp_routing_data_cb *_Nonnull data_callback, void *_Nonnull object);
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typedef int tcp_oob_data_cb(void *_Nonnull object, const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull data, uint16_t length,
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void *_Nullable userdata);
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/**
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* @retval 1 on success.
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* @retval 0 if could not send packet.
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* @retval -1 on failure.
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*/
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int send_oob_packet(const Logger *_Nonnull logger, TCP_Client_Connection *_Nonnull con, const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull data, uint16_t length);
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void oob_data_handler(TCP_Client_Connection *_Nonnull con, tcp_oob_data_cb *_Nonnull oob_data_callback, void *_Nonnull object);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* C_TOXCORE_TOXCORE_TCP_CLIENT_H */
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