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tomato/toxcore/net.h
Green Sky 9b36dd9d99 Squashed 'external/toxcore/c-toxcore/' changes from c9cdae001..9ed2fa80d 
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
2026-02-01 14:26:52 +01:00

232 lines
8.7 KiB
C
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/* SPDX-License-Identifier: GPL-3.0-or-later
* Copyright © 2016-2026 The TokTok team.
* Copyright © 2013 Tox project.
*/
#ifndef C_TOXCORE_TOXCORE_NET_H
#define C_TOXCORE_TOXCORE_NET_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "attributes.h"
#include "mem.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef bitwise int Socket_Value;
typedef struct Socket {
Socket_Value value;
} Socket;
#define SIZE_IP4 4
#define SIZE_IP6 16
#define SIZE_IP (1 + SIZE_IP6)
#define SIZE_PORT 2
#define SIZE_IPPORT (SIZE_IP + SIZE_PORT)
typedef struct Family {
uint8_t value;
} Family;
typedef union IP4 {
uint32_t uint32;
uint16_t uint16[2];
uint8_t uint8[4];
} IP4;
typedef union IP6 {
uint8_t uint8[16];
uint16_t uint16[8];
uint32_t uint32[4];
uint64_t uint64[2];
} IP6;
typedef union IP_Union {
IP4 v4;
IP6 v6;
} IP_Union;
typedef struct IP {
Family family;
IP_Union ip;
} IP;
typedef struct IP_Port {
IP ip;
uint16_t port;
} IP_Port;
/** Redefinitions of variables for safe transfer over wire. */
#define TOX_AF_UNSPEC 0
#define TOX_AF_INET 2
#define TOX_AF_INET6 10
#define TOX_TCP_INET 130
#define TOX_TCP_INET6 138
#define TOX_SOCK_STREAM 1
#define TOX_SOCK_DGRAM 2
#define TOX_PROTO_TCP 1
#define TOX_PROTO_UDP 2
/** TCP related */
#define TCP_CLIENT_FAMILY (TOX_AF_INET6 + 1)
#define TCP_INET (TOX_AF_INET6 + 2)
#define TCP_INET6 (TOX_AF_INET6 + 3)
#define TCP_SERVER_FAMILY (TOX_AF_INET6 + 4)
int net_socket_to_native(Socket sock);
Socket net_socket_from_native(int sock);
Socket net_invalid_socket(void);
typedef int net_close_cb(void *_Nullable obj, Socket sock);
typedef Socket net_accept_cb(void *_Nullable obj, Socket sock);
typedef int net_bind_cb(void *_Nullable obj, Socket sock, const IP_Port *_Nonnull addr);
typedef int net_listen_cb(void *_Nullable obj, Socket sock, int backlog);
typedef int net_connect_cb(void *_Nullable obj, Socket sock, const IP_Port *_Nonnull addr);
typedef int net_recvbuf_cb(void *_Nullable obj, Socket sock);
typedef int net_recv_cb(void *_Nullable obj, Socket sock, uint8_t *_Nonnull buf, size_t len);
typedef int net_recvfrom_cb(void *_Nullable obj, Socket sock, uint8_t *_Nonnull buf, size_t len, IP_Port *_Nonnull addr);
typedef int net_send_cb(void *_Nullable obj, Socket sock, const uint8_t *_Nonnull buf, size_t len);
typedef int net_sendto_cb(void *_Nullable obj, Socket sock, const uint8_t *_Nonnull buf, size_t len, const IP_Port *_Nonnull addr);
typedef Socket net_socket_cb(void *_Nullable obj, int domain, int type, int proto);
typedef int net_socket_nonblock_cb(void *_Nullable obj, Socket sock, bool nonblock);
typedef int net_getsockopt_cb(void *_Nullable obj, Socket sock, int level, int optname, void *_Nonnull optval, size_t *_Nonnull optlen);
typedef int net_setsockopt_cb(void *_Nullable obj, Socket sock, int level, int optname, const void *_Nonnull optval, size_t optlen);
typedef int net_getaddrinfo_cb(void *_Nullable obj, const Memory *_Nonnull mem, const char *_Nonnull address, int family, int protocol, IP_Port *_Nullable *_Nonnull addrs);
typedef int net_freeaddrinfo_cb(void *_Nullable obj, const Memory *_Nonnull mem, IP_Port *_Nullable addrs);
typedef struct Network_Funcs {
net_close_cb *_Nullable close;
net_accept_cb *_Nullable accept;
net_bind_cb *_Nullable bind;
net_listen_cb *_Nullable listen;
net_connect_cb *_Nullable connect;
net_recvbuf_cb *_Nullable recvbuf;
net_recv_cb *_Nullable recv;
net_recvfrom_cb *_Nullable recvfrom;
net_send_cb *_Nullable send;
net_sendto_cb *_Nullable sendto;
net_socket_cb *_Nullable socket;
net_socket_nonblock_cb *_Nullable socket_nonblock;
net_getsockopt_cb *_Nullable getsockopt;
net_setsockopt_cb *_Nullable setsockopt;
net_getaddrinfo_cb *_Nullable getaddrinfo;
net_freeaddrinfo_cb *_Nullable freeaddrinfo;
} Network_Funcs;
typedef struct Network {
const Network_Funcs *_Nullable funcs;
void *_Nullable obj;
} Network;
int ns_close(const Network *_Nonnull ns, Socket sock);
Socket ns_accept(const Network *_Nonnull ns, Socket sock);
int ns_bind(const Network *_Nonnull ns, Socket sock, const IP_Port *_Nonnull addr);
int ns_listen(const Network *_Nonnull ns, Socket sock, int backlog);
int ns_connect(const Network *_Nonnull ns, Socket sock, const IP_Port *_Nonnull addr);
int ns_recvbuf(const Network *_Nonnull ns, Socket sock);
int ns_recv(const Network *_Nonnull ns, Socket sock, uint8_t *_Nonnull buf, size_t len);
int ns_recvfrom(const Network *_Nonnull ns, Socket sock, uint8_t *_Nonnull buf, size_t len, IP_Port *_Nonnull addr);
int ns_send(const Network *_Nonnull ns, Socket sock, const uint8_t *_Nonnull buf, size_t len);
int ns_sendto(const Network *_Nonnull ns, Socket sock, const uint8_t *_Nonnull buf, size_t len, const IP_Port *_Nonnull addr);
Socket ns_socket(const Network *_Nonnull ns, int domain, int type, int proto);
int ns_socket_nonblock(const Network *_Nonnull ns, Socket sock, bool nonblock);
int ns_getsockopt(const Network *_Nonnull ns, Socket sock, int level, int optname, void *_Nonnull optval, size_t *_Nonnull optlen);
int ns_setsockopt(const Network *_Nonnull ns, Socket sock, int level, int optname, const void *_Nonnull optval, size_t optlen);
int ns_getaddrinfo(const Network *_Nonnull ns, const Memory *_Nonnull mem, const char *_Nonnull address, int family, int protocol, IP_Port *_Nullable *_Nonnull addrs);
int ns_freeaddrinfo(const Network *_Nonnull ns, const Memory *_Nonnull mem, IP_Port *_Nullable addrs);
bool net_family_is_unspec(Family family);
bool net_family_is_ipv4(Family family);
bool net_family_is_ipv6(Family family);
bool net_family_is_tcp_server(Family family);
bool net_family_is_tcp_client(Family family);
bool net_family_is_tcp_ipv4(Family family);
bool net_family_is_tcp_ipv6(Family family);
bool net_family_is_tox_tcp_ipv4(Family family);
bool net_family_is_tox_tcp_ipv6(Family family);
Family net_family_unspec(void);
Family net_family_ipv4(void);
Family net_family_ipv6(void);
Family net_family_tcp_server(void);
Family net_family_tcp_client(void);
Family net_family_tcp_ipv4(void);
Family net_family_tcp_ipv6(void);
Family net_family_tox_tcp_ipv4(void);
Family net_family_tox_tcp_ipv6(void);
const char *_Nonnull net_family_to_string(Family family);
uint32_t net_htonl(uint32_t hostlong);
uint16_t net_htons(uint16_t hostshort);
uint32_t net_ntohl(uint32_t hostlong);
uint16_t net_ntohs(uint16_t hostshort);
const char *_Nullable net_inet_ntop4(const IP4 *_Nonnull addr, char *_Nonnull buf, size_t bufsize);
const char *_Nullable net_inet_ntop6(const IP6 *_Nonnull addr, char *_Nonnull buf, size_t bufsize);
int net_inet_pton4(const char *_Nonnull addr_string, IP4 *_Nonnull addrbuf);
int net_inet_pton6(const char *_Nonnull addr_string, IP6 *_Nonnull addrbuf);
bool net_should_ignore_recv_error(int err);
bool net_should_ignore_connect_error(int err);
size_t net_pack_bool(uint8_t *_Nonnull bytes, bool v);
size_t net_pack_u16(uint8_t *_Nonnull bytes, uint16_t v);
size_t net_pack_u32(uint8_t *_Nonnull bytes, uint32_t v);
size_t net_pack_u64(uint8_t *_Nonnull bytes, uint64_t v);
size_t net_unpack_bool(const uint8_t *_Nonnull bytes, bool *_Nonnull v);
size_t net_unpack_u16(const uint8_t *_Nonnull bytes, uint16_t *_Nonnull v);
size_t net_unpack_u32(const uint8_t *_Nonnull bytes, uint32_t *_Nonnull v);
size_t net_unpack_u64(const uint8_t *_Nonnull bytes, uint64_t *_Nonnull v);
int net_error(void);
void net_clear_error(void);
#define NET_STRERROR_SIZE 256
/** @brief Contains a null terminated formatted error message.
*
* This struct should not contain more than at most the 2 fields.
*/
typedef struct Net_Strerror {
char data[NET_STRERROR_SIZE];
uint16_t size;
} Net_Strerror;
/** @brief Get a text explanation for the error code from `net_error()`.
*
* @param error The error code to get a string for.
* @param buf The struct to store the error message in (usually on stack).
*
* @return pointer to a NULL-terminated string describing the error code.
*/
char *_Nonnull net_strerror(int error, Net_Strerror *_Nonnull buf);
IP4 net_get_ip4_loopback(void);
IP4 net_get_ip4_broadcast(void);
IP6 net_get_ip6_loopback(void);
IP6 net_get_ip6_broadcast(void);
bool net_join_multicast(const Network *_Nonnull ns, Socket sock, Family family);
bool net_set_socket_nonblock(const Network *_Nonnull ns, Socket sock);
bool net_set_socket_nosigpipe(const Network *_Nonnull ns, Socket sock);
bool net_set_socket_reuseaddr(const Network *_Nonnull ns, Socket sock);
bool net_set_socket_dualstack(const Network *_Nonnull ns, Socket sock);
bool net_set_socket_buffer_size(const Network *_Nonnull ns, Socket sock, int size);
bool net_set_socket_broadcast(const Network *_Nonnull ns, Socket sock);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* C_TOXCORE_TOXCORE_NET_H */
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