summaryrefslogtreecommitdiff
path: root/include/ntp_rfc2553.h
blob: 08ccbc415b21759ae165f2b04773e0324a51f633 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
/*
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Copyright (c) 1982, 1986, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)in.h	8.3 (Berkeley) 1/3/94
 */

/*
 * Compatability shims with the rfc2553 API to simplify ntp.
 */
#ifndef NTP_RFC2553_H
#define NTP_RFC2553_H

#include <netdb.h>
#include <isc/net.h>

#include "ntp_types.h"
#include "ntp_malloc.h"

struct addrinfo *copy_addrinfo_impl(const struct addrinfo *
#ifdef EREALLOC_CALLSITE	/* from ntp_malloc.h */
							   ,
				    const char *, int
#endif
					 );
struct addrinfo *copy_addrinfo_list_impl(const struct addrinfo *
#ifdef EREALLOC_CALLSITE	/* from ntp_malloc.h */
								,
					 const char *, int
#endif
					 );
#ifdef EREALLOC_CALLSITE
# define copy_addrinfo(l) \
	 copy_addrinfo_impl((l), __FILE__, __LINE__)
# define copy_addrinfo_list(l) \
	 copy_addrinfo_list_impl((l), __FILE__, __LINE__)
#else
# define copy_addrinfo(l)	copy_addrinfo_impl(l)
# define copy_addrinfo_list(l)	copy_addrinfo_list_impl(l)
#endif

/*
 * If various macros are not defined we need to define them
 */

#ifndef AF_INET6
# define AF_INET6	AF_MAX
# define PF_INET6	AF_INET6
#endif

#if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)

# define	_SS_MAXSIZE	128
# define	_SS_ALIGNSIZE	(sizeof(ntp_uint64_t))
# ifdef ISC_PLATFORM_HAVESALEN
#  define	_SS_PAD1SIZE	(_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
#  define	_SS_PAD2SIZE	(_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
				_SS_PAD1SIZE - _SS_ALIGNSIZE)
# else
#  define	_SS_PAD1SIZE	(_SS_ALIGNSIZE - sizeof(short))
#  define	_SS_PAD2SIZE	(_SS_MAXSIZE - sizeof(short) - \
				_SS_PAD1SIZE - _SS_ALIGNSIZE)
# endif /* ISC_PLATFORM_HAVESALEN */
#endif

#ifndef INET6_ADDRSTRLEN
# define	INET6_ADDRSTRLEN	46	/* max len of IPv6 addr in ascii */
#endif

/*
 * If we don't have the sockaddr_storage structure
 * we need to define it
 */

#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
struct sockaddr_storage {
#ifdef ISC_PLATFORM_HAVESALEN
	ntp_u_int8_t	ss_len;		/* address length */
	ntp_u_int8_t	ss_family;	/* address family */
#else
	short		ss_family;	/* address family */
#endif
	char		__ss_pad1[_SS_PAD1SIZE];
	ntp_uint64_t	__ss_align;	/* force desired structure storage alignment */
	char		__ss_pad2[_SS_PAD2SIZE];
};
#endif

/*
 * Finally if the platform doesn't support IPv6 we need some
 * additional definitions
 */

/*
 * Flag values for getaddrinfo()
 */
#ifndef AI_PASSIVE
#define	AI_PASSIVE	0x00000001 /* get address to use bind() */
#define	AI_CANONNAME	0x00000002 /* fill ai_canonname */
#define	AI_NUMERICHOST	0x00000004 /* prevent name resolution */
/* valid flags for addrinfo */
#define AI_MASK \
    (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)

#define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */
#endif	/* !AI_PASSIVE */

#ifndef AI_NUMERICHOST		/* such as AIX 4.3 */
# define Z_AI_NUMERICHOST	0
#else
# define Z_AI_NUMERICHOST	AI_NUMERICHOST
#endif

#ifndef AI_NUMERICSERV		/* not in RFC 2553 */
# define Z_AI_NUMERICSERV	0
#else
# define Z_AI_NUMERICSERV	AI_NUMERICSERV
#endif

#ifndef ISC_PLATFORM_HAVEIPV6

#ifdef SYS_WINNT
# define in6_addr in_addr6
#endif

struct addrinfo {
	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
	int	ai_family;	/* PF_xxx */
	int	ai_socktype;	/* SOCK_xxx */
	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
	size_t	ai_addrlen;	/* length of ai_addr */
	char	*ai_canonname;	/* canonical name for hostname */
	struct	sockaddr *ai_addr;	/* binary address */
	struct	addrinfo *ai_next;	/* next structure in linked list */
};

/*
 * Error return codes from getaddrinfo()
 */
#define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
#define	EAI_AGAIN	 2	/* temporary failure in name resolution */
#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
#define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
#define	EAI_FAMILY	 5	/* ai_family not supported */
#define	EAI_MEMORY	 6	/* memory allocation failure */
#define	EAI_NODATA	 7	/* no address associated with hostname */
#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
#define	EAI_SYSTEM	11	/* system error returned in errno */
#define	EAI_BADHINTS	12
#define	EAI_PROTOCOL	13
#define	EAI_MAX		14


int	getaddrinfo (const char *, const char *,
			 const struct addrinfo *, struct addrinfo **);
int	getnameinfo (const struct sockaddr *, u_int, char *,
			 size_t, char *, size_t, int);
void	freeaddrinfo (struct addrinfo *);
char	*gai_strerror (int);

/*
 * Constants for getnameinfo()
 */
#ifndef NI_MAXHOST
#define	NI_MAXHOST	1025
#define	NI_MAXSERV	32
#endif

/*
 * Flag values for getnameinfo()
 */
#ifndef NI_NUMERICHOST
#define	NI_NOFQDN	0x00000001
#define	NI_NUMERICHOST	0x00000002
#define	NI_NAMEREQD	0x00000004
#define	NI_NUMERICSERV	0x00000008
#define	NI_DGRAM	0x00000010
#define NI_WITHSCOPEID	0x00000020
#endif

#endif /* !ISC_PLATFORM_HAVEIPV6 */

/* 
 * Set up some macros to look for IPv6 and IPv6 multicast
 */

#if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)
# define INCLUDE_IPV6_SUPPORT
# if defined(IPV6_JOIN_GROUP) && defined(IPV6_LEAVE_GROUP)
#  define INCLUDE_IPV6_MULTICAST_SUPPORT
# endif	/* IPV6 Multicast Support */
#endif  /* IPv6 Support */

#endif /* !NTP_RFC2553_H */