adf3764857
git-subtree-dir: contrib/wireguard-tools git-subtree-mainline:9142a2a37bgit-subtree-split:7e00bf8773
108 lines
2.4 KiB
C
108 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
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/*
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* Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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*/
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#ifndef CONTAINERS_H
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#define CONTAINERS_H
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#include <stdint.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#if defined(__linux__)
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#include <linux/wireguard.h>
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#elif defined(__OpenBSD__)
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#include <net/if_wg.h>
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#endif
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#ifndef WG_KEY_LEN
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#define WG_KEY_LEN 32
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#endif
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/* Cross platform __kernel_timespec */
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struct timespec64 {
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int64_t tv_sec;
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int64_t tv_nsec;
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};
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struct wgallowedip {
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uint16_t family;
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union {
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struct in_addr ip4;
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struct in6_addr ip6;
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};
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uint8_t cidr;
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struct wgallowedip *next_allowedip;
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};
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enum {
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WGPEER_REMOVE_ME = 1U << 0,
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WGPEER_REPLACE_ALLOWEDIPS = 1U << 1,
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WGPEER_HAS_PUBLIC_KEY = 1U << 2,
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WGPEER_HAS_PRESHARED_KEY = 1U << 3,
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WGPEER_HAS_PERSISTENT_KEEPALIVE_INTERVAL = 1U << 4
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};
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struct wgpeer {
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uint32_t flags;
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uint8_t public_key[WG_KEY_LEN];
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uint8_t preshared_key[WG_KEY_LEN];
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union {
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struct sockaddr addr;
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struct sockaddr_in addr4;
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struct sockaddr_in6 addr6;
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} endpoint;
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struct timespec64 last_handshake_time;
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uint64_t rx_bytes, tx_bytes;
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uint16_t persistent_keepalive_interval;
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struct wgallowedip *first_allowedip, *last_allowedip;
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struct wgpeer *next_peer;
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};
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enum {
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WGDEVICE_REPLACE_PEERS = 1U << 0,
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WGDEVICE_HAS_PRIVATE_KEY = 1U << 1,
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WGDEVICE_HAS_PUBLIC_KEY = 1U << 2,
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WGDEVICE_HAS_LISTEN_PORT = 1U << 3,
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WGDEVICE_HAS_FWMARK = 1U << 4
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};
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struct wgdevice {
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char name[IFNAMSIZ];
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uint32_t ifindex;
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uint32_t flags;
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uint8_t public_key[WG_KEY_LEN];
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uint8_t private_key[WG_KEY_LEN];
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uint32_t fwmark;
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uint16_t listen_port;
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struct wgpeer *first_peer, *last_peer;
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};
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#define for_each_wgpeer(__dev, __peer) for ((__peer) = (__dev)->first_peer; (__peer); (__peer) = (__peer)->next_peer)
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#define for_each_wgallowedip(__peer, __allowedip) for ((__allowedip) = (__peer)->first_allowedip; (__allowedip); (__allowedip) = (__allowedip)->next_allowedip)
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static inline void free_wgdevice(struct wgdevice *dev)
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{
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if (!dev)
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return;
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for (struct wgpeer *peer = dev->first_peer, *np = peer ? peer->next_peer : NULL; peer; peer = np, np = peer ? peer->next_peer : NULL) {
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for (struct wgallowedip *allowedip = peer->first_allowedip, *na = allowedip ? allowedip->next_allowedip : NULL; allowedip; allowedip = na, na = allowedip ? allowedip->next_allowedip : NULL)
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free(allowedip);
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free(peer);
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}
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free(dev);
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}
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#endif
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