linux/include/net/inetpeer.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *		INETPEER - A storage for permanent information about peers
 *
 *  Authors:	Andrey V. Savochkin <[email protected]>
 */

#ifndef _NET_INETPEER_H
#define _NET_INETPEER_H

#include <linux/types.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/spinlock.h>
#include <linux/rtnetlink.h>
#include <net/ipv6.h>
#include <linux/atomic.h>

/* IPv4 address key for cache lookups */
struct ipv4_addr_key { … };

#define INETPEER_MAXKEYSZ …

struct inetpeer_addr { … };

struct inet_peer { … };

struct inet_peer_base { … };

void inet_peer_base_init(struct inet_peer_base *);

void inet_initpeers(void) __init;

#define INETPEER_METRICS_NEW …

static inline void inetpeer_set_addr_v4(struct inetpeer_addr *iaddr, __be32 ip)
{ … }

static inline __be32 inetpeer_get_addr_v4(struct inetpeer_addr *iaddr)
{ … }

static inline void inetpeer_set_addr_v6(struct inetpeer_addr *iaddr,
					struct in6_addr *in6)
{ … }

static inline struct in6_addr *inetpeer_get_addr_v6(struct inetpeer_addr *iaddr)
{ … }

/* can be called with or without local BH being disabled */
struct inet_peer *inet_getpeer(struct inet_peer_base *base,
			       const struct inetpeer_addr *daddr,
			       int create);

static inline struct inet_peer *inet_getpeer_v4(struct inet_peer_base *base,
						__be32 v4daddr,
						int vif, int create)
{ … }

static inline struct inet_peer *inet_getpeer_v6(struct inet_peer_base *base,
						const struct in6_addr *v6daddr,
						int create)
{ … }

static inline int inetpeer_addr_cmp(const struct inetpeer_addr *a,
				    const struct inetpeer_addr *b)
{ … }

/* can be called from BH context or outside */
void inet_putpeer(struct inet_peer *p);
bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout);

void inetpeer_invalidate_tree(struct inet_peer_base *);

#endif /* _NET_INETPEER_H */