linux/net/ipv6/fou6.c

// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/socket.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <linux/udp.h>
#include <linux/icmpv6.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <net/fou.h>
#include <net/ip.h>
#include <net/ip6_tunnel.h>
#include <net/ip6_checksum.h>
#include <net/protocol.h>
#include <net/udp.h>
#include <net/udp_tunnel.h>

#if IS_ENABLED(CONFIG_IPV6_FOU_TUNNEL)

static void fou6_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e,
			   struct flowi6 *fl6, u8 *protocol, __be16 sport)
{ … }

static int fou6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
			     u8 *protocol, struct flowi6 *fl6)
{ … }

static int gue6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
			     u8 *protocol, struct flowi6 *fl6)
{ … }

static int gue6_err_proto_handler(int proto, struct sk_buff *skb,
				  struct inet6_skb_parm *opt,
				  u8 type, u8 code, int offset, __be32 info)
{ … }

static int gue6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
		    u8 type, u8 code, int offset, __be32 info)
{ … }


static const struct ip6_tnl_encap_ops fou_ip6tun_ops = …;

static const struct ip6_tnl_encap_ops gue_ip6tun_ops = …;

static int ip6_tnl_encap_add_fou_ops(void)
{ … }

static void ip6_tnl_encap_del_fou_ops(void)
{ … }

#else

static int ip6_tnl_encap_add_fou_ops(void)
{
	return 0;
}

static void ip6_tnl_encap_del_fou_ops(void)
{
}

#endif

static int __init fou6_init(void)
{ … }

static void __exit fou6_fini(void)
{ … }

module_init(…) …;
module_exit(fou6_fini);
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;