mirror of
https://github.com/irungentoo/toxcore.git
synced 2024-03-22 13:30:51 +08:00
149 lines
3.5 KiB
C
149 lines
3.5 KiB
C
/* network.h
|
|
*
|
|
* Datatypes, functions and includes for the core networking.
|
|
*
|
|
* Copyright (C) 2013 Tox project All Rights Reserved.
|
|
*
|
|
* This file is part of Tox.
|
|
*
|
|
* Tox is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Tox 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Tox. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef NETWORK_H
|
|
#define NETWORK_H
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
#ifdef WIN32 /* Put win32 includes here */
|
|
#ifndef WINVER
|
|
//Windows XP
|
|
#define WINVER 0x0501
|
|
#endif
|
|
#include <winsock2.h>
|
|
#include <windows.h>
|
|
#include <ws2tcpip.h>
|
|
|
|
#undef VANILLA_NACL /* make sure on windows we use libsodium */
|
|
|
|
#else //Linux includes
|
|
|
|
#include <fcntl.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <errno.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <netdb.h>
|
|
#include <unistd.h>
|
|
|
|
#endif
|
|
|
|
#ifndef VANILLA_NACL
|
|
/* we use libsodium by default */
|
|
#include <sodium.h>
|
|
#else
|
|
#include <crypto_box.h>
|
|
#define crypto_box_MACBYTES (crypto_box_ZEROBYTES - crypto_box_BOXZEROBYTES)
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define MAX_UDP_PACKET_SIZE 65507
|
|
|
|
|
|
/* Current time, unix format */
|
|
#define unix_time() ((uint64_t)time(NULL))
|
|
|
|
|
|
typedef union {
|
|
uint8_t c[4];
|
|
uint16_t s[2];
|
|
uint32_t i;
|
|
} IP;
|
|
|
|
typedef struct {
|
|
IP ip;
|
|
uint16_t port;
|
|
/* not used for anything right now */
|
|
uint16_t padding;
|
|
} IP_Port;
|
|
|
|
typedef struct {
|
|
int16_t family;
|
|
uint16_t port;
|
|
IP ip;
|
|
uint8_t zeroes[8];
|
|
#ifdef ENABLE_IPV6
|
|
uint8_t zeroes2[12];
|
|
#endif
|
|
} ADDR;
|
|
|
|
/* Function to receive data, ip and port of sender is put into ip_port
|
|
the packet data into data
|
|
the packet length into length. */
|
|
typedef int (*packet_handler_callback)(IP_Port ip_port, uint8_t *data, uint32_t len);
|
|
|
|
/* returns current time in milleseconds since the epoch. */
|
|
uint64_t current_time(void);
|
|
|
|
/* return a random number
|
|
NOTE: this function should probably not be used where cryptographic randomness is absolutely necessary */
|
|
uint32_t random_int(void);
|
|
|
|
/* Basic network functions: */
|
|
|
|
/* Function to send packet(data) of length length to ip_port */
|
|
int sendpacket(IP_Port ip_port, uint8_t *data, uint32_t length);
|
|
|
|
/* Function to call when packet beginning with byte is received */
|
|
void networking_registerhandler(uint8_t byte, packet_handler_callback cb);
|
|
|
|
/* call this several times a second */
|
|
void networking_poll();
|
|
|
|
/* initialize networking
|
|
bind to ip and port
|
|
ip must be in network order EX: 127.0.0.1 = (7F000001)
|
|
port is in host byte order (this means don't worry about it)
|
|
returns 0 if no problems
|
|
returns -1 if there were problems */
|
|
int init_networking(IP ip, uint16_t port);
|
|
|
|
/* function to cleanup networking stuff(doesn't do much right now) */
|
|
void shutdown_networking(void);
|
|
|
|
/*
|
|
resolve_addr():
|
|
address should represent IPv4 or a hostname with A record
|
|
|
|
returns a data in network byte order that can be used to set IP.i or IP_Port.ip.i
|
|
returns 0 on failure
|
|
|
|
TODO: Fix ipv6 support
|
|
*/
|
|
uint32_t resolve_addr(const char *address);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|