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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#ifndef _WG_PEER_H
#define _WG_PEER_H
#include "device.h"
#include "noise.h"
#include "cookie.h"
#include <linux/types.h>
#include <linux/netfilter.h>
#include <linux/spinlock.h>
#include <linux/kref.h>
#include <net/dst_cache.h>
struct wireguard_device;
struct endpoint {
union {
struct sockaddr addr;
struct sockaddr_in addr4;
struct sockaddr_in6 addr6;
};
union {
struct {
struct in_addr src4;
int src_if4; /* Essentially the same as addr6->scope_id */
};
struct in6_addr src6;
};
};
struct wireguard_peer {
struct wireguard_device *device;
struct crypt_queue tx_queue, rx_queue;
struct sk_buff_head staged_packet_queue;
int serial_work_cpu;
struct noise_keypairs keypairs;
struct endpoint endpoint;
struct dst_cache endpoint_cache;
rwlock_t endpoint_lock;
struct noise_handshake handshake;
u64 last_sent_handshake;
struct work_struct transmit_handshake_work, clear_peer_work;
struct cookie latest_cookie;
struct hlist_node pubkey_hash;
u64 rx_bytes, tx_bytes;
struct timer_list timer_retransmit_handshake, timer_send_keepalive, timer_new_handshake, timer_zero_key_material, timer_persistent_keepalive;
unsigned int timer_handshake_attempts;
u16 persistent_keepalive_interval;
bool timers_enabled, timer_need_another_keepalive, sent_lastminute_handshake;
struct timespec walltime_last_handshake;
struct kref refcount;
struct rcu_head rcu;
struct list_head peer_list;
u64 internal_id;
struct napi_struct napi;
};
struct wireguard_peer *peer_create(struct wireguard_device *wg, const u8 public_key[NOISE_PUBLIC_KEY_LEN], const u8 preshared_key[NOISE_SYMMETRIC_KEY_LEN]);
struct wireguard_peer *peer_get(struct wireguard_peer *peer);
struct wireguard_peer *peer_rcu_get(struct wireguard_peer *peer);
void peer_put(struct wireguard_peer *peer);
void peer_remove(struct wireguard_peer *peer);
void peer_remove_all(struct wireguard_device *wg);
struct wireguard_peer *peer_lookup_by_index(struct wireguard_device *wg, u32 index);
#endif /* _WG_PEER_H */
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