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
|
/*
* Socket union header.
* Copyright (c) 1997 Kunihiro Ishiguro
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _ZEBRA_SOCKUNION_H
#define _ZEBRA_SOCKUNION_H
#if 0
union sockunion {
struct sockinet {
u_char si_len;
u_char si_family;
u_short si_port;
} su_si;
struct sockaddr_in su_sin;
struct sockaddr_in6 su_sin6;
};
#define su_len su_si.si_len
#define su_family su_si.si_family
#define su_port su_si.si_port
#endif /* 0 */
union sockunion
{
struct sockaddr sa;
struct sockaddr_in sin;
#ifdef HAVE_IPV6
struct sockaddr_in6 sin6;
#endif /* HAVE_IPV6 */
};
enum connect_result
{
connect_error,
connect_success,
connect_in_progress
};
/* Default address family. */
#ifdef HAVE_IPV6
#define AF_INET_UNION AF_INET6
#else
#define AF_INET_UNION AF_INET
#endif
/* Sockunion address string length. Same as INET6_ADDRSTRLEN. */
#define SU_ADDRSTRLEN 46
/* Macro to set link local index to the IPv6 address. For KAME IPv6
stack. */
#ifdef KAME
#define IN6_LINKLOCAL_IFINDEX(a) ((a).s6_addr[2] << 8 | (a).s6_addr[3])
#define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
do { \
(a).s6_addr[2] = ((i) >> 8) & 0xff; \
(a).s6_addr[3] = (i) & 0xff; \
} while (0)
#else
#define IN6_LINKLOCAL_IFINDEX(a)
#define SET_IN6_LINKLOCAL_IFINDEX(a, i)
#endif /* KAME */
/* shortcut macro to specify address field of struct sockaddr */
#define sock2ip(X) (((struct sockaddr_in *)(X))->sin_addr.s_addr)
#ifdef HAVE_IPV6
#define sock2ip6(X) (((struct sockaddr_in6 *)(X))->sin6_addr.s6_addr)
#endif /* HAVE_IPV6 */
#define sockunion_family(X) (X)->sa.sa_family
#define sockunion2ip(X) (X)->sin.sin_addr.s_addr
/* Prototypes. */
extern int str2sockunion (const char *, union sockunion *);
extern const char *sockunion2str (union sockunion *, char *, size_t);
extern int sockunion_cmp (union sockunion *, union sockunion *);
extern int sockunion_same (union sockunion *, union sockunion *);
extern struct in_addr sockunion_get_in_addr (union sockunion *su);
extern int sockunion_accept (int sock, union sockunion *);
extern int sockunion_stream_socket (union sockunion *);
extern int sockopt_reuseaddr (int);
extern int sockopt_reuseport (int);
extern int sockopt_v6only (int family, int sock);
extern int sockunion_bind (int sock, union sockunion *,
unsigned short, union sockunion *);
extern int sockopt_ttl (int family, int sock, int ttl);
extern int sockopt_minttl (int family, int sock, int minttl);
extern int sockopt_cork (int sock, int onoff);
extern int sockunion_socket (union sockunion *su);
extern const char *inet_sutop (union sockunion *su, char *str);
extern enum connect_result sockunion_connect (int fd, union sockunion *su,
unsigned short port,
unsigned int);
extern union sockunion *sockunion_getsockname (int);
extern union sockunion *sockunion_getpeername (int);
extern union sockunion *sockunion_dup (union sockunion *);
extern void sockunion_free (union sockunion *);
#ifndef HAVE_INET_NTOP
extern const char * inet_ntop (int family, const void *addrptr,
char *strptr, size_t len);
#endif /* HAVE_INET_NTOP */
#ifndef HAVE_INET_PTON
extern int inet_pton (int family, const char *strptr, void *addrptr);
#endif /* HAVE_INET_PTON */
#ifndef HAVE_INET_ATON
extern int inet_aton (const char *cp, struct in_addr *inaddr);
#endif
#endif /* _ZEBRA_SOCKUNION_H */
|
