netwerk/sctp/src/user_ip6_var.h

   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  * 3. 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  */
  59
  60 #ifndef _USER_IP6_VAR_H_
  61 #define _USER_IP6_VAR_H_
  62
  63 #if defined(_WIN32)
  64 struct ip6_hdr {
  65         union {
  66                 struct ip6_hdrctl {
  67                         uint32_t ip6_un1_flow;  /* 20 bits of flow-ID */
  68                         uint16_t ip6_un1_plen;  /* payload length */
  69                         uint8_t  ip6_un1_nxt;   /* next header */
  70                         uint8_t  ip6_un1_hlim;  /* hop limit */
  71                 } ip6_un1;
  72                 uint8_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
  83
  84 #define IPV6_VERSION            0x60
  85 #endif
  86
  87 #if defined(_WIN32)
  88 #define s6_addr16 u.Word
  89 #endif
  90 #if !defined(_WIN32) && !defined(__linux__) && !defined(__EMSCRIPTEN__)
  91 #define s6_addr8  __u6_addr.__u6_addr8
  92 #define s6_addr16 __u6_addr.__u6_addr16
  93 #define s6_addr32 __u6_addr.__u6_addr32
  94 #endif
  95
  96 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__DragonFly__)
  97 struct route_in6 {
  98         struct  rtentry *ro_rt;
  99         struct  llentry *ro_lle;
 100         struct  in6_addr *ro_ia6;
 101         int             ro_flags;
 102         struct  sockaddr_in6 ro_dst;
 103 };
 104 #endif
 105 #define IP6_EXTHDR_GET(val, typ, m, off, len) \
 106 do {                                                                    \
 107         struct mbuf *t;                                                 \
 108         int tmp;                                                        \
 109         if ((m)->m_len >= (off) + (len))                                \
 110                 (val) = (typ)(mtod((m), caddr_t) + (off));              \
 111         else {                                                          \
 112                 t = m_pulldown((m), (off), (len), &tmp);                \
 113                 if (t) {                                                \
 114                         KASSERT(t->m_len >= tmp + (len),                \
 115                                 ("m_pulldown malfunction"));            \
 116                         (val) = (typ)(mtod(t, caddr_t) + tmp);          \
 117                 } else {                                                \
 118                         (val) = (typ)NULL;                              \
 119                         (m) = NULL;                                     \
 120                 }                                                       \
 121         }                                                               \
 122 } while (0)
 123
 124 #endif /* !_USER_IP6_VAR_H_ */