Green Sky
a3126d581b
82460b212 feat: add ngc events 24b54722a fix: Ensure we have allocators available for the error paths. 48dbcfebc cleanup: Remove redundant `-DSODIUM_EXPORT` from definitions. 0cef46ee9 cleanup: Fix a few more clang-tidy warnings. 0c5b918e9 cleanup: Fix a few more clang-tidy warnings. 4d3c97f49 cleanup: Enforce stricter identifier naming using clang-tidy. a549807df refactor: Add `mem` module to allow tests to override allocators. 6133fb153 chore: Add devcontainer setup for codespaces. 620e07ecd chore: Set a timeout for tests started using Conan c0ec33b16 chore: Migrate Windows CI from Appveyor to Azure DevOps 8ed47f3ef fix incorrect documentation a1e245841 docs: Fix doxygen config and remove some redundant comments. b0f633185 chore: Fix the Android CI job 7469a529b fix: Add missing `#include <array>`. 2b1a6b0d2 add missing ngc constants getter declarations and definitions 2e02d5637 chore: Add missing module dependencies. REVERT: 67badf694 feat: add ngc events git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: 82460b2124216af1ac9d63060de310a682a2fd15
128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2016-2018 The TokTok team.
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* Copyright © 2014 Tox project.
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*/
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#ifndef C_TOXCORE_TOXCORE_TCP_COMMON_H
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#define C_TOXCORE_TOXCORE_TCP_COMMON_H
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#include "crypto_core.h"
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#include "mem.h"
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#include "network.h"
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typedef struct TCP_Priority_List TCP_Priority_List;
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struct TCP_Priority_List {
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TCP_Priority_List *next;
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uint16_t size;
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uint16_t sent;
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uint8_t *data;
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};
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non_null(1) nullable(2)
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void wipe_priority_list(const Memory *mem, TCP_Priority_List *p);
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#define NUM_RESERVED_PORTS 16
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#define NUM_CLIENT_CONNECTIONS (256 - NUM_RESERVED_PORTS)
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#ifdef USE_TEST_NETWORK
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#define TCP_PACKET_FORWARD_REQUEST 11
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#define TCP_PACKET_FORWARDING 10
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#define TCP_PACKET_ROUTING_REQUEST 9
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#define TCP_PACKET_ROUTING_RESPONSE 8
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#define TCP_PACKET_CONNECTION_NOTIFICATION 7
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#define TCP_PACKET_DISCONNECT_NOTIFICATION 6
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#define TCP_PACKET_PING 5
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#define TCP_PACKET_PONG 4
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#define TCP_PACKET_OOB_SEND 3
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#define TCP_PACKET_OOB_RECV 2
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#define TCP_PACKET_ONION_REQUEST 1
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#define TCP_PACKET_ONION_RESPONSE 0
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#else
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#define TCP_PACKET_ROUTING_REQUEST 0
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#define TCP_PACKET_ROUTING_RESPONSE 1
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#define TCP_PACKET_CONNECTION_NOTIFICATION 2
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#define TCP_PACKET_DISCONNECT_NOTIFICATION 3
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#define TCP_PACKET_PING 4
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#define TCP_PACKET_PONG 5
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#define TCP_PACKET_OOB_SEND 6
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#define TCP_PACKET_OOB_RECV 7
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#define TCP_PACKET_ONION_REQUEST 8
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#define TCP_PACKET_ONION_RESPONSE 9
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#define TCP_PACKET_FORWARD_REQUEST 10
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#define TCP_PACKET_FORWARDING 11
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#endif // test network
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#define TCP_HANDSHAKE_PLAIN_SIZE (CRYPTO_PUBLIC_KEY_SIZE + CRYPTO_NONCE_SIZE)
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#define TCP_SERVER_HANDSHAKE_SIZE (CRYPTO_NONCE_SIZE + TCP_HANDSHAKE_PLAIN_SIZE + CRYPTO_MAC_SIZE)
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#define TCP_CLIENT_HANDSHAKE_SIZE (CRYPTO_PUBLIC_KEY_SIZE + TCP_SERVER_HANDSHAKE_SIZE)
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#define TCP_MAX_OOB_DATA_LENGTH 1024
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/** frequency to ping connected nodes and timeout in seconds */
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#define TCP_PING_FREQUENCY 30
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#define TCP_PING_TIMEOUT 10
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#define MAX_PACKET_SIZE 2048
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typedef struct TCP_Connection {
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const Memory *mem;
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const Random *rng;
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const Network *ns;
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Socket sock;
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IP_Port ip_port; // for debugging.
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uint8_t sent_nonce[CRYPTO_NONCE_SIZE]; /* Nonce of sent packets. */
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uint8_t shared_key[CRYPTO_SHARED_KEY_SIZE];
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uint8_t last_packet[2 + MAX_PACKET_SIZE];
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uint16_t last_packet_length;
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uint16_t last_packet_sent;
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TCP_Priority_List *priority_queue_start;
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TCP_Priority_List *priority_queue_end;
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} TCP_Connection;
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/**
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* @retval 0 if pending data was sent completely
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* @retval -1 if it wasn't
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*/
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non_null()
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int send_pending_data_nonpriority(const Logger *logger, TCP_Connection *con);
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/**
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* @retval 0 if pending data was sent completely
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* @retval -1 if it wasn't
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*/
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non_null()
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int send_pending_data(const Logger *logger, TCP_Connection *con);
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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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non_null()
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int write_packet_tcp_secure_connection(
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const Logger *logger, TCP_Connection *con, const uint8_t *data, uint16_t length,
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bool priority);
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/** @brief Read length bytes from socket.
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*
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* return length on success
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* return -1 on failure/no data in buffer.
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*/
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non_null()
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int read_tcp_packet(
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const Logger *logger, const Memory *mem, const Network *ns, Socket sock, uint8_t *data, uint16_t length, const IP_Port *ip_port);
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/**
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* @return length of received packet on success.
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* @retval 0 if could not read any packet.
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* @retval -1 on failure (connection must be killed).
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*/
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non_null()
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int read_packet_tcp_secure_connection(
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const Logger *logger, const Memory *mem, const Network *ns,
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Socket sock, uint16_t *next_packet_length,
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const uint8_t *shared_key, uint8_t *recv_nonce, uint8_t *data,
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uint16_t max_len, const IP_Port *ip_port);
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#endif
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