Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/netinet/ip_encap.h
39475 views
1
/*	$KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $	*/

2


3
/*-

4
 * SPDX-License-Identifier: BSD-3-Clause

5
 *

6
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.

7
 * Copyright (c) 2018 Andrey V. Elsukov <[email protected]>

8
 * All rights reserved.

9
 *

10
 * Redistribution and use in source and binary forms, with or without

11
 * modification, are permitted provided that the following conditions

12
 * are met:

13
 * 1. Redistributions of source code must retain the above copyright

14
 *    notice, this list of conditions and the following disclaimer.

15
 * 2. Redistributions in binary form must reproduce the above copyright

16
 *    notice, this list of conditions and the following disclaimer in the

17
 *    documentation and/or other materials provided with the distribution.

18
 * 3. Neither the name of the project nor the names of its contributors

19
 *    may be used to endorse or promote products derived from this software

20
 *    without specific prior written permission.

21
 *

22
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND

23
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

24
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

25
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE

26
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

27
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

28
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

29
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

30
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

31
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

32
 * SUCH DAMAGE.

33
 */

34


35
#ifndef _NETINET_IP_ENCAP_H_

36
#define _NETINET_IP_ENCAP_H_

37


38
#ifdef _KERNEL

39


40
int	encap4_input(struct mbuf **, int *, int);

41
int	encap6_input(struct mbuf **, int *, int);

42


43
typedef int (*encap_lookup_t)(const struct mbuf *, int, int, void **);

44
typedef int (*encap_check_t)(const struct mbuf *, int, int, void *);

45
typedef int (*encap_input_t)(struct mbuf *, int, int, void *);

46
typedef void (*encap_srcaddr_t)(void *, const struct sockaddr *, int);

47


48
struct encap_config {

49
	int		proto;		/* protocol */

50
	int		min_length;	/* minimum packet length */

51
	int		max_hdrsize;	/* maximum header size */

52
	int		exact_match;	/* a packet is exactly matched */

53
#define	ENCAP_DRV_LOOKUP	0x7fffffff

54


55
	encap_lookup_t	lookup;

56
	encap_check_t	check;

57
	encap_input_t	input;

58


59
	void		*pad[3];

60
};

61


62
struct encaptab;

63
struct srcaddrtab;

64


65
const struct encaptab *ip_encap_attach(const struct encap_config *,

66
    void *arg, int mflags);

67
const struct encaptab *ip6_encap_attach(const struct encap_config *,

68
    void *arg, int mflags);

69


70
const struct srcaddrtab *ip_encap_register_srcaddr(encap_srcaddr_t,

71
    void *arg, int mflags);

72
const struct srcaddrtab *ip6_encap_register_srcaddr(encap_srcaddr_t,

73
    void *arg, int mflags);

74


75
int ip_encap_unregister_srcaddr(const struct srcaddrtab *);

76
int ip6_encap_unregister_srcaddr(const struct srcaddrtab *);

77
int ip_encap_detach(const struct encaptab *);

78
int ip6_encap_detach(const struct encaptab *);

79
#endif

80


81
#endif /*_NETINET_IP_ENCAP_H_*/

82


83