linux/net/ipv4/xfrm4_policy.c

// SPDX-License-Identifier: GPL-2.0
/*
 * xfrm4_policy.c
 *
 * Changes:
 *	Kazunori MIYAZAWA @USAGI
 * 	YOSHIFUJI Hideaki @USAGI
 *		Split up af-specific portion
 *
 */

#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/inetdevice.h>
#include <net/dst.h>
#include <net/xfrm.h>
#include <net/ip.h>
#include <net/l3mdev.h>

static struct dst_entry *__xfrm4_dst_lookup(struct net *net, struct flowi4 *fl4,
					    int tos, int oif,
					    const xfrm_address_t *saddr,
					    const xfrm_address_t *daddr,
					    u32 mark)
{ … }

static struct dst_entry *xfrm4_dst_lookup(struct net *net, int tos, int oif,
					  const xfrm_address_t *saddr,
					  const xfrm_address_t *daddr,
					  u32 mark)
{ … }

static int xfrm4_get_saddr(struct net *net, int oif,
			   xfrm_address_t *saddr, xfrm_address_t *daddr,
			   u32 mark)
{ … }

static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
			  const struct flowi *fl)
{ … }

static void xfrm4_update_pmtu(struct dst_entry *dst, struct sock *sk,
			      struct sk_buff *skb, u32 mtu,
			      bool confirm_neigh)
{ … }

static void xfrm4_redirect(struct dst_entry *dst, struct sock *sk,
			   struct sk_buff *skb)
{ … }

static void xfrm4_dst_destroy(struct dst_entry *dst)
{ … }

static struct dst_ops xfrm4_dst_ops_template = …;

static const struct xfrm_policy_afinfo xfrm4_policy_afinfo = …;

#ifdef CONFIG_SYSCTL
static struct ctl_table xfrm4_policy_table[] = …;

static __net_init int xfrm4_net_sysctl_init(struct net *net)
{ … }

static __net_exit void xfrm4_net_sysctl_exit(struct net *net)
{ … }
#else /* CONFIG_SYSCTL */
static inline int xfrm4_net_sysctl_init(struct net *net)
{
	return 0;
}

static inline void xfrm4_net_sysctl_exit(struct net *net)
{
}
#endif

static int __net_init xfrm4_net_init(struct net *net)
{ … }

static void __net_exit xfrm4_net_exit(struct net *net)
{ … }

static struct pernet_operations __net_initdata xfrm4_net_ops = …;

static void __init xfrm4_policy_init(void)
{ … }

void __init xfrm4_init(void)
{ … }