linux/net/ipv4/xfrm4_tunnel.c

// SPDX-License-Identifier: GPL-2.0-only
/* xfrm4_tunnel.c: Generic IP tunnel transformer.
 *
 * Copyright (C) 2003 David S. Miller ([email protected])
 */

#define pr_fmt(fmt) …

#include <linux/skbuff.h>
#include <linux/module.h>
#include <net/xfrm.h>
#include <net/protocol.h>

static int ipip_output(struct xfrm_state *x, struct sk_buff *skb)
{ … }

static int ipip_xfrm_rcv(struct xfrm_state *x, struct sk_buff *skb)
{ … }

static int ipip_init_state(struct xfrm_state *x, struct netlink_ext_ack *extack)
{ … }

static void ipip_destroy(struct xfrm_state *x)
{ … }

static const struct xfrm_type ipip_type = …;

static int xfrm_tunnel_rcv(struct sk_buff *skb)
{ … }

static int xfrm_tunnel_err(struct sk_buff *skb, u32 info)
{ … }

static struct xfrm_tunnel xfrm_tunnel_handler __read_mostly = …;

#if IS_ENABLED(CONFIG_IPV6)
static struct xfrm_tunnel xfrm64_tunnel_handler __read_mostly = …;
#endif

static int __init ipip_init(void)
{ … }

static void __exit ipip_fini(void)
{ … }

module_init(…) …;
module_exit(ipip_fini);
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS_XFRM_TYPE(…);