linux/net/ipv6/ipcomp6.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * IP Payload Compression Protocol (IPComp) for IPv6 - RFC3173
 *
 * Copyright (C)2003 USAGI/WIDE Project
 *
 * Author	Mitsuru KANDA  <[email protected]>
 */
/*
 * [Memo]
 *
 * Outbound:
 *  The compression of IP datagram MUST be done before AH/ESP processing,
 *  fragmentation, and the addition of Hop-by-Hop/Routing header.
 *
 * Inbound:
 *  The decompression of IP datagram MUST be done after the reassembly,
 *  AH/ESP processing.
 */

#define pr_fmt(fmt) …

#include <linux/module.h>
#include <net/ip.h>
#include <net/xfrm.h>
#include <net/ipcomp.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <linux/pfkeyv2.h>
#include <linux/random.h>
#include <linux/percpu.h>
#include <linux/smp.h>
#include <linux/list.h>
#include <linux/vmalloc.h>
#include <linux/rtnetlink.h>
#include <net/ip6_route.h>
#include <net/icmp.h>
#include <net/ipv6.h>
#include <net/protocol.h>
#include <linux/ipv6.h>
#include <linux/icmpv6.h>
#include <linux/mutex.h>

static int ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
				u8 type, u8 code, int offset, __be32 info)
{ … }

static struct xfrm_state *ipcomp6_tunnel_create(struct xfrm_state *x)
{ … }

static int ipcomp6_tunnel_attach(struct xfrm_state *x)
{ … }

static int ipcomp6_init_state(struct xfrm_state *x,
			      struct netlink_ext_ack *extack)
{ … }

static int ipcomp6_rcv_cb(struct sk_buff *skb, int err)
{ … }

static const struct xfrm_type ipcomp6_type = …;

static struct xfrm6_protocol ipcomp6_protocol = …;

static int __init ipcomp6_init(void)
{ … }

static void __exit ipcomp6_fini(void)
{ … }

module_init(…) …;
module_exit(ipcomp6_fini);
MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;

MODULE_ALIAS_XFRM_TYPE(…);