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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
#ifndef __COMMON_H__
#define __COMMON_H__
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <netinet/in.h>
#define MAX_CONNECTIONS 16
#define MAX_LINESIZE 4096
#define RECV_BUFSIZE 8192
static const char WG_DYNAMIC_ADDR[] = "fe80::";
static const uint16_t WG_DYNAMIC_PORT = 1337;
#define ITEMS \
E(WGKEY_UNKNOWN, "") /* must be the first entry */ \
/* CMD START */ \
E(WGKEY_REQUEST_IP, "request_ip") \
E(WGKEY_ENDCMD, "") \
/* CMD END */ \
E(WGKEY_INCOMPLETE, "") \
E(WGKEY_IPV4, "ipv4") \
E(WGKEY_IPV6, "ipv6") \
E(WGKEY_LEASETIME, "leasetime")
#define E(x, y) x,
enum wg_dynamic_key { ITEMS };
#undef E
#define E(x, y) y,
static const char *const WG_DYNAMIC_KEY[] = { ITEMS };
#undef E
#undef ITEMS
struct wg_dynamic_attr {
enum wg_dynamic_key key;
size_t len;
struct wg_dynamic_attr *next;
unsigned char value[];
};
struct wg_dynamic_request {
enum wg_dynamic_key cmd;
uint32_t version;
struct wg_dynamic_attr *first, *last;
};
struct wg_combined_ip {
uint16_t family;
union {
struct in_addr ip4;
struct in6_addr ip6;
} ip;
uint8_t cidr;
};
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
void free_wg_dynamic_request(struct wg_dynamic_request *req);
bool handle_request(int fd, struct wg_dynamic_request *req,
void (*success)(int, struct wg_dynamic_request *req),
void (*error)(int, int));
#endif
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