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A Portable Framework for Low-Level Network Packet Construction
ip6_misc.h
1 /*
2  * Copyright (c) 1993, 1994, 1997
3  * The Regents of the University of California. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that: (1) source code distributions
7  * retain the above copyright notice and this paragraph in its entirety, (2)
8  * distributions including binary code include the above copyright notice and
9  * this paragraph in its entirety in the documentation or other materials
10  * provided with the distribution, and (3) all advertising materials mentioning
11  * features or use of this software display the following acknowledgement:
12  * ``This product includes software developed by the University of California,
13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14  * the University nor the names of its contributors may be used to endorse
15  * or promote products derived from this software without specific prior
16  * written permission.
17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20  *
21  * @(#) $Header: /tcpdump/master/libpcap/Win32/Include/ip6_misc.h,v 1.5 2006-01-22 18:02:18 gianluca Exp $ (LBL)
22  */
23 
24 /*
25  * This file contains a collage of declarations for IPv6 from FreeBSD not present in Windows
26  */
27 
28 #include <winsock2.h>
29 
30 #include <ws2tcpip.h>
31 
32 #ifndef __MINGW32__
33 #define IN_MULTICAST(a) IN_CLASSD(a)
34 #endif
35 
36 #define IN_EXPERIMENTAL(a) ((((u_int32_t) (a)) & 0xf0000000) == 0xf0000000)
37 
38 #define IN_LOOPBACKNET 127
39 
40 #if defined(__MINGW32__) && defined(DEFINE_ADDITIONAL_IPV6_STUFF)
41 /* IPv6 address */
42 struct in6_addr
43  {
44  union
45  {
46  u_int8_t u6_addr8[16];
47  u_int16_t u6_addr16[8];
48  u_int32_t u6_addr32[4];
49  } in6_u;
50 #define s6_addr in6_u.u6_addr8
51 #define s6_addr16 in6_u.u6_addr16
52 #define s6_addr32 in6_u.u6_addr32
53 #define s6_addr64 in6_u.u6_addr64
54  };
55 
56 #define IN6ADDR_ANY_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
57 #define IN6ADDR_LOOPBACK_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }
58 #endif /* __MINGW32__ */
59 
60 
61 #if (defined _MSC_VER) || (defined(__MINGW32__) && defined(DEFINE_ADDITIONAL_IPV6_STUFF))
62 typedef unsigned short sa_family_t;
63 #endif
64 
65 
66 #if defined(__MINGW32__) && defined(DEFINE_ADDITIONAL_IPV6_STUFF)
67 
68 #define __SOCKADDR_COMMON(sa_prefix) \
69  sa_family_t sa_prefix##family
70 
71 /* Ditto, for IPv6. */
72 struct sockaddr_in6
73  {
74  __SOCKADDR_COMMON (sin6_);
75  u_int16_t sin6_port; /* Transport layer port # */
76  u_int32_t sin6_flowinfo; /* IPv6 flow information */
77  struct in6_addr sin6_addr; /* IPv6 address */
78  };
79 
80 #define IN6_IS_ADDR_V4MAPPED(a) \
81  ((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
82  (((u_int32_t *) (a))[2] == htonl (0xffff)))
83 
84 #define IN6_IS_ADDR_MULTICAST(a) (((u_int8_t *) (a))[0] == 0xff)
85 
86 #define IN6_IS_ADDR_LINKLOCAL(a) \
87  ((((u_int32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfe800000))
88 
89 #define IN6_IS_ADDR_LOOPBACK(a) \
90  (((u_int32_t *) (a))[0] == 0 && ((u_int32_t *) (a))[1] == 0 && \
91  ((u_int32_t *) (a))[2] == 0 && ((u_int32_t *) (a))[3] == htonl (1))
92 #endif /* __MINGW32__ */
93 
94 #define ip6_vfc ip6_ctlun.ip6_un2_vfc
95 #define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
96 #define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
97 #define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt
98 #define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
99 #define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
100 
101 #define nd_rd_type nd_rd_hdr.icmp6_type
102 #define nd_rd_code nd_rd_hdr.icmp6_code
103 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
104 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
105 
106 /*
107  * IPV6 extension headers
108  */
109 #define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */
110 #define IPPROTO_IPV6 41 /* IPv6 header. */
111 #define IPPROTO_ROUTING 43 /* IPv6 routing header */
112 #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */
113 #define IPPROTO_ESP 50 /* encapsulating security payload */
114 #define IPPROTO_AH 51 /* authentication header */
115 #define IPPROTO_ICMPV6 58 /* ICMPv6 */
116 #define IPPROTO_NONE 59 /* IPv6 no next header */
117 #define IPPROTO_DSTOPTS 60 /* IPv6 destination options */
118 #define IPPROTO_PIM 103 /* Protocol Independent Multicast. */
119 
120 #define IPV6_RTHDR_TYPE_0 0
121 
122 /* Option types and related macros */
123 #define IP6OPT_PAD1 0x00 /* 00 0 00000 */
124 #define IP6OPT_PADN 0x01 /* 00 0 00001 */
125 #define IP6OPT_JUMBO 0xC2 /* 11 0 00010 = 194 */
126 #define IP6OPT_JUMBO_LEN 6
127 #define IP6OPT_ROUTER_ALERT 0x05 /* 00 0 00101 */
128 
129 #define IP6OPT_RTALERT_LEN 4
130 #define IP6OPT_RTALERT_MLD 0 /* Datagram contains an MLD message */
131 #define IP6OPT_RTALERT_RSVP 1 /* Datagram contains an RSVP message */
132 #define IP6OPT_RTALERT_ACTNET 2 /* contains an Active Networks msg */
133 #define IP6OPT_MINLEN 2
134 
135 #define IP6OPT_BINDING_UPDATE 0xc6 /* 11 0 00110 */
136 #define IP6OPT_BINDING_ACK 0x07 /* 00 0 00111 */
137 #define IP6OPT_BINDING_REQ 0x08 /* 00 0 01000 */
138 #define IP6OPT_HOME_ADDRESS 0xc9 /* 11 0 01001 */
139 #define IP6OPT_EID 0x8a /* 10 0 01010 */
140 
141 #define IP6OPT_TYPE(o) ((o) & 0xC0)
142 #define IP6OPT_TYPE_SKIP 0x00
143 #define IP6OPT_TYPE_DISCARD 0x40
144 #define IP6OPT_TYPE_FORCEICMP 0x80
145 #define IP6OPT_TYPE_ICMP 0xC0
146 
147 #define IP6OPT_MUTABLE 0x20
148 
149 
150 #if defined(__MINGW32__) && defined(DEFINE_ADDITIONAL_IPV6_STUFF)
151 #ifndef EAI_ADDRFAMILY
152 struct addrinfo {
153  int ai_flags; /* AI_PASSIVE, AI_CANONNAME */
154  int ai_family; /* PF_xxx */
155  int ai_socktype; /* SOCK_xxx */
156  int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
157  size_t ai_addrlen; /* length of ai_addr */
158  char *ai_canonname; /* canonical name for hostname */
159  struct sockaddr *ai_addr; /* binary address */
160  struct addrinfo *ai_next; /* next structure in linked list */
161 };
162 #endif
163 #endif /* __MINGW32__ */