aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/src/routing-table.h
blob: c4fd05df6323e94ac04ea581e5b086e0a112af51 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/* Copyright 2015-2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */

#ifndef ROUTINGTABLE_H
#define ROUTINGTABLE_H

#include "wireguard.h"
#include <linux/mutex.h>
#include <linux/ip.h>
#include <linux/ipv6.h>

struct wireguard_peer;
struct routing_table_node;

struct routing_table {
	struct routing_table_node __rcu *root4;
	struct routing_table_node __rcu *root6;
	struct mutex table_update_lock;
};

void routing_table_init(struct routing_table *table);
void routing_table_free(struct routing_table *table);
int routing_table_insert_v4(struct routing_table *table, const struct in_addr *ip, uint8_t cidr, struct wireguard_peer *peer);
int routing_table_insert_v6(struct routing_table *table, const struct in6_addr *ip, uint8_t cidr, struct wireguard_peer *peer);
int routing_table_remove_v4(struct routing_table *table, const struct in_addr *ip, uint8_t cidr);
int routing_table_remove_v6(struct routing_table *table, const struct in6_addr *ip, uint8_t cidr);
int routing_table_remove_by_peer(struct routing_table *table, struct wireguard_peer *peer);
int routing_table_walk_ips(struct routing_table *table, void *ctx, int (*func)(void *ctx, struct wireguard_peer *peer, union nf_inet_addr ip, uint8_t cidr, int family));
int routing_table_walk_ips_by_peer(struct routing_table *table, void *ctx, struct wireguard_peer *peer, int (*func)(void *ctx, union nf_inet_addr ip, uint8_t cidr, int family));
int routing_table_walk_ips_by_peer_sleepable(struct routing_table *table, void *ctx, struct wireguard_peer *peer, int (*func)(void *ctx, union nf_inet_addr ip, uint8_t cidr, int family));

/* These return a strong reference to a peer: */
struct wireguard_peer *routing_table_lookup_v4(struct routing_table *table, const struct in_addr *ip);
struct wireguard_peer *routing_table_lookup_v6(struct routing_table *table, const struct in6_addr *ip);
struct wireguard_peer *routing_table_lookup_dst(struct routing_table *table, struct sk_buff *skb);
struct wireguard_peer *routing_table_lookup_src(struct routing_table *table, struct sk_buff *skb);

#ifdef DEBUG
bool routing_table_selftest(void);
#endif

#endif