The Tor Browser: netwerk/sctp/src/user_ip6

     1 /*-

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

     3  * All rights reserved.

     4  *

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

     6  * modification, are permitted provided that the following conditions

     7  * are met:

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

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

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

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

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

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

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

    15  *    without specific prior written permission.

    16  *

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

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

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

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

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

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

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

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

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

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

    27  * SUCH DAMAGE.

    28  *

    29  */

    30 /*-

    31  * Copyright (c) 1982, 1986, 1993

    32  *      The Regents of the University of California.  All rights reserved.

    33  *

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

    35  * modification, are permitted provided that the following conditions

    36  * are met:

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

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

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

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

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

    42  * 4. Neither the name of the University nor the names of its contributors

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

    44  *    without specific prior written permission.

    45  *

    46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

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

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

    49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

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

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

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

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

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

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

    56  * SUCH DAMAGE.

    57  *

    58  */

    60 #ifndef _USER_IP6_VAR_H_

    61 #define _USER_IP6_VAR_H_

    63 #if defined(__Userspace_os_Windows)

    64 struct ip6_hdr {

    65 	union {

    66 		struct ip6_hdrctl {

    67 			u_int32_t ip6_un1_flow;	/* 20 bits of flow-ID */

    68 			u_int16_t ip6_un1_plen;	/* payload length */

    69 			u_int8_t  ip6_un1_nxt;	/* next header */

    70 			u_int8_t  ip6_un1_hlim;	/* hop limit */

    71 		} ip6_un1;

    72 		u_int8_t ip6_un2_vfc;	/* 4 bits version, top 4 bits class */

    73 	} ip6_ctlun;

    74 	struct in6_addr ip6_src;	/* source address */

    75 	struct in6_addr ip6_dst;	/* destination address */

    76 };

    77 #define ip6_vfc		ip6_ctlun.ip6_un2_vfc

    78 #define ip6_flow	ip6_ctlun.ip6_un1.ip6_un1_flow

    79 #define ip6_plen	ip6_ctlun.ip6_un1.ip6_un1_plen

    80 #define ip6_nxt		ip6_ctlun.ip6_un1.ip6_un1_nxt

    81 #define ip6_hlim	ip6_ctlun.ip6_un1.ip6_un1_hlim

    82 #define ip6_hops	ip6_ctlun.ip6_un1.ip6_un1_hlim

    84 #define IPV6_VERSION		0x60

    85 #endif

    87 #if defined(__Userspace_os_Windows)

    88 #define s6_addr16 u.Word

    89 #endif

    90 #if !defined(__Userspace_os_Windows)

    91 #if !defined(__Userspace_os_Linux)

    92 #define s6_addr8  __u6_addr.__u6_addr8

    93 #define s6_addr16 __u6_addr.__u6_addr16

    94 #define s6_addr32 __u6_addr.__u6_addr32

    95 #endif

    96 #endif

    98 #if !defined(__Userspace_os_FreeBSD) && !defined(__Userspace_os_OpenBSD) && !defined(__Userspace_os_DragonFly)

    99 struct route_in6 {

   100 	struct	rtentry *ro_rt;

   101 	struct	llentry *ro_lle;

   102 	struct	in6_addr *ro_ia6;

   103 	int		ro_flags;

   104 	struct	sockaddr_in6 ro_dst;

   105 };

   106 #endif

   107 #define IP6_EXTHDR_GET(val, typ, m, off, len) \

   108 do {									\

   109 	struct mbuf *t;							\

   110 	int tmp;							\

   111 	if ((m)->m_len >= (off) + (len))				\

   112 		(val) = (typ)(mtod((m), caddr_t) + (off));		\

   113 	else {								\

   114 		t = m_pulldown((m), (off), (len), &tmp);		\

   115 		if (t) {						\

   116 			KASSERT(t->m_len >= tmp + (len),		\

   117 			        ("m_pulldown malfunction"));		\

   118 			(val) = (typ)(mtod(t, caddr_t) + tmp);		\

   119 		} else {						\

   120 			(val) = (typ)NULL;				\

   121 			(m) = NULL;					\

   122 		}							\

   123 	}								\

   124 } while (0)

   126 #endif /* !_USER_IP6_VAR_H_ */

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