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
|
/*
* 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
#include "privs.h"
#include "if.h"
#ifdef __OpenBSD__
#include <netmpls/mpls.h>
#endif
union sockunion
{
struct sockaddr sa;
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
#ifdef __OpenBSD__
struct sockaddr_mpls smpls;
#endif
};
enum connect_result
{
connect_error,
connect_success,
connect_in_progress
};
/* Default address family. */
#define AF_INET_UNION AF_INET6
/* 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 */
#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 (const union sockunion *, char *, size_t);
extern int sockunion_cmp (const union sockunion *, const union sockunion *);
extern int sockunion_same (const union sockunion *, const union sockunion *);
extern unsigned int sockunion_hash (const union sockunion *);
extern size_t family2addrsize(int family);
extern size_t sockunion_get_addrlen(const union sockunion *);
extern const u_char *sockunion_get_addr(const union sockunion *);
extern void sockunion_set(union sockunion *, int family, const u_char *addr, size_t bytes);
extern union sockunion *sockunion_str2su (const char *str);
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 sockopt_mark_default(int sock, int mark, struct zebra_privs_t *);
extern int sockunion_socket (const union sockunion *su);
extern const char *inet_sutop (const union sockunion *su, char *str);
extern enum connect_result sockunion_connect (int fd, const union sockunion *su,
unsigned short port,
ifindex_t);
extern union sockunion *sockunion_getsockname (int);
extern union sockunion *sockunion_getpeername (int);
extern union sockunion *sockunion_dup (const union sockunion *);
extern void sockunion_free (union sockunion *);
extern void sockunion_init (union sockunion *);
#endif /* _ZEBRA_SOCKUNION_H */
|
