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
173 lines
6.6 KiB
C
173 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
|
|
* Copyright © 2016-2025 The TokTok team.
|
|
* Copyright © 2014 Tox project.
|
|
*/
|
|
|
|
/**
|
|
* Connection to friends.
|
|
*/
|
|
#ifndef C_TOXCORE_TOXCORE_FRIEND_CONNECTION_H
|
|
#define C_TOXCORE_TOXCORE_FRIEND_CONNECTION_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#include "DHT.h"
|
|
#include "attributes.h"
|
|
#include "logger.h"
|
|
#include "mem.h"
|
|
#include "mono_time.h"
|
|
#include "net.h"
|
|
#include "net_crypto.h"
|
|
#include "network.h"
|
|
#include "onion_client.h"
|
|
|
|
#define MAX_FRIEND_CONNECTION_CALLBACKS 2
|
|
#define MESSENGER_CALLBACK_INDEX 0
|
|
#define GROUPCHAT_CALLBACK_INDEX 1
|
|
|
|
#define PACKET_ID_ALIVE 16
|
|
#define PACKET_ID_SHARE_RELAYS 17
|
|
#define PACKET_ID_FRIEND_REQUESTS 18
|
|
|
|
/** Interval between the sending of ping packets. */
|
|
#define FRIEND_PING_INTERVAL 8
|
|
|
|
/** If no packets are received from friend in this time interval, kill the connection. */
|
|
#define FRIEND_CONNECTION_TIMEOUT (FRIEND_PING_INTERVAL * 4)
|
|
|
|
/** Time before friend is removed from the DHT after last hearing about him. */
|
|
#define FRIEND_DHT_TIMEOUT BAD_NODE_TIMEOUT
|
|
|
|
#define FRIEND_MAX_STORED_TCP_RELAYS (MAX_FRIEND_TCP_CONNECTIONS * 4)
|
|
|
|
/** Max number of tcp relays sent to friends */
|
|
#define MAX_SHARED_RELAYS RECOMMENDED_FRIEND_TCP_CONNECTIONS
|
|
|
|
/** How often we share our TCP relays with each friend connection */
|
|
#define SHARE_RELAYS_INTERVAL (60 * 2)
|
|
|
|
typedef enum Friendconn_Status {
|
|
FRIENDCONN_STATUS_NONE,
|
|
FRIENDCONN_STATUS_CONNECTING,
|
|
FRIENDCONN_STATUS_CONNECTED,
|
|
} Friendconn_Status;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct Friend_Connections Friend_Connections;
|
|
|
|
Net_Crypto *_Nonnull friendconn_net_crypto(const Friend_Connections *_Nonnull fr_c);
|
|
|
|
/**
|
|
* @return friendcon_id corresponding to the real public key on success.
|
|
* @retval -1 on failure.
|
|
*/
|
|
int getfriend_conn_id_pk(const Friend_Connections *_Nonnull fr_c, const uint8_t *_Nonnull real_pk);
|
|
|
|
/** @brief Increases lock_count for the connection with friendcon_id by 1.
|
|
*
|
|
* @retval 0 on success.
|
|
* @retval -1 on failure.
|
|
*/
|
|
int friend_connection_lock(const Friend_Connections *_Nonnull fr_c, int friendcon_id);
|
|
|
|
/**
|
|
* @retval FRIENDCONN_STATUS_CONNECTED if the friend is connected.
|
|
* @retval FRIENDCONN_STATUS_CONNECTING if the friend isn't connected.
|
|
* @retval FRIENDCONN_STATUS_NONE on failure.
|
|
*/
|
|
unsigned int friend_con_connected(const Friend_Connections *_Nonnull fr_c, int friendcon_id);
|
|
|
|
/** @brief Copy public keys associated to friendcon_id.
|
|
*
|
|
* @retval 0 on success.
|
|
* @retval -1 on failure.
|
|
*/
|
|
int get_friendcon_public_keys(uint8_t *_Nullable real_pk, uint8_t *_Nullable dht_temp_pk, const Friend_Connections *_Nonnull fr_c, int friendcon_id);
|
|
/** Set temp dht key for connection. */
|
|
void set_dht_temp_pk(Friend_Connections *_Nonnull fr_c, int friendcon_id, const uint8_t *_Nonnull dht_temp_pk, void *_Nullable userdata);
|
|
|
|
typedef int global_status_cb(void *_Nullable object, int friendcon_id, bool status, void *_Nullable userdata);
|
|
|
|
typedef int fc_status_cb(void *_Nullable object, int friendcon_id, bool status, void *_Nullable userdata);
|
|
typedef int fc_data_cb(void *_Nullable object, int friendcon_id, const uint8_t *_Nonnull data, uint16_t length, void *_Nullable userdata);
|
|
typedef int fc_lossy_data_cb(void *_Nullable object, int friendcon_id, const uint8_t *_Nonnull data, uint16_t length, void *_Nullable userdata);
|
|
|
|
/** Set global status callback for friend connections. */
|
|
void set_global_status_callback(Friend_Connections *_Nonnull fr_c, global_status_cb *_Nullable global_status_callback, void *_Nullable object);
|
|
/** @brief Set the callbacks for the friend connection.
|
|
* @param index is the index (0 to (MAX_FRIEND_CONNECTION_CALLBACKS - 1)) we
|
|
* want the callback to set in the array.
|
|
*
|
|
* @retval 0 on success.
|
|
* @retval -1 on failure
|
|
*/
|
|
int friend_connection_callbacks(const Friend_Connections *_Nonnull fr_c, int friendcon_id, unsigned int index,
|
|
fc_status_cb *_Nullable status_callback,
|
|
fc_data_cb *_Nullable data_callback,
|
|
fc_lossy_data_cb *_Nullable lossy_data_callback,
|
|
void *_Nullable object, int number);
|
|
/** @brief return the crypt_connection_id for the connection.
|
|
*
|
|
* @return crypt_connection_id on success.
|
|
* @retval -1 on failure.
|
|
*/
|
|
int friend_connection_crypt_connection_id(const Friend_Connections *_Nonnull fr_c, int friendcon_id);
|
|
|
|
/** @brief Create a new friend connection.
|
|
* If one to that real public key already exists, increase lock count and return it.
|
|
*
|
|
* @retval -1 on failure.
|
|
* @return connection id on success.
|
|
*/
|
|
int new_friend_connection(Friend_Connections *_Nonnull fr_c, const uint8_t *_Nonnull real_public_key);
|
|
|
|
/** @brief Kill a friend connection.
|
|
*
|
|
* @retval -1 on failure.
|
|
* @retval 0 on success.
|
|
*/
|
|
int kill_friend_connection(Friend_Connections *_Nonnull fr_c, int friendcon_id);
|
|
|
|
/** @brief Send a Friend request packet.
|
|
*
|
|
* @retval -1 if failure.
|
|
* @retval 0 if it sent the friend request directly to the friend.
|
|
* @return the number of peers it was routed through if it did not send it directly.
|
|
*/
|
|
int send_friend_request_packet(Friend_Connections *_Nonnull fr_c, int friendcon_id, uint32_t nospam_num, const uint8_t *_Nonnull data, uint16_t length);
|
|
|
|
typedef int fr_request_cb(
|
|
void *_Nonnull object, const uint8_t *_Nonnull source_pubkey, const uint8_t *_Nonnull data, uint16_t length, void *_Nullable userdata);
|
|
|
|
/** @brief Set friend request callback.
|
|
*
|
|
* This function will be called every time a friend request packet is received.
|
|
*/
|
|
void set_friend_request_callback(Friend_Connections *_Nonnull fr_c, fr_request_cb *_Nullable fr_request_callback, void *_Nullable object);
|
|
|
|
/** Create new friend_connections instance. */
|
|
Friend_Connections *_Nullable new_friend_connections(const Logger *_Nonnull logger, const Memory *_Nonnull mem, const Mono_Time *_Nonnull mono_time, const Network *_Nonnull ns,
|
|
Onion_Client *_Nonnull onion_c, DHT *_Nonnull dht, Net_Crypto *_Nonnull net_crypto, Networking_Core *_Nonnull net,
|
|
bool local_discovery_enabled);
|
|
|
|
/** main friend_connections loop. */
|
|
void do_friend_connections(Friend_Connections *_Nonnull fr_c, void *_Nullable userdata);
|
|
|
|
/** Free everything related with friend_connections. */
|
|
void kill_friend_connections(Friend_Connections *_Nullable fr_c);
|
|
typedef struct Friend_Conn Friend_Conn;
|
|
|
|
Friend_Conn *_Nullable get_conn(const Friend_Connections *_Nonnull fr_c, int friendcon_id);
|
|
int friend_conn_get_onion_friendnum(const Friend_Conn *_Nonnull fc);
|
|
const IP_Port *_Nullable friend_conn_get_dht_ip_port(const Friend_Conn *_Nonnull fc);
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* C_TOXCORE_TOXCORE_FRIEND_CONNECTION_H */
|