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718e3744 | 1 | /* |
2 | * Socket union header. | |
3 | * Copyright (c) 1997 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #ifndef _ZEBRA_SOCKUNION_H | |
24 | #define _ZEBRA_SOCKUNION_H | |
25 | ||
ed40466a | 26 | #include "privs.h" |
b892f1dd | 27 | #include "if.h" |
fe6c7157 | 28 | #ifdef __OpenBSD__ |
d3e2c74a RW |
29 | #include <netmpls/mpls.h> |
30 | #endif | |
ed40466a | 31 | |
718e3744 | 32 | union sockunion |
33 | { | |
34 | struct sockaddr sa; | |
35 | struct sockaddr_in sin; | |
718e3744 | 36 | struct sockaddr_in6 sin6; |
fe6c7157 | 37 | #ifdef __OpenBSD__ |
d3e2c74a RW |
38 | struct sockaddr_mpls smpls; |
39 | #endif | |
718e3744 | 40 | }; |
41 | ||
42 | enum connect_result | |
43 | { | |
44 | connect_error, | |
45 | connect_success, | |
46 | connect_in_progress | |
47 | }; | |
48 | ||
49 | /* Default address family. */ | |
718e3744 | 50 | #define AF_INET_UNION AF_INET6 |
718e3744 | 51 | |
52 | /* Sockunion address string length. Same as INET6_ADDRSTRLEN. */ | |
53 | #define SU_ADDRSTRLEN 46 | |
54 | ||
55 | /* Macro to set link local index to the IPv6 address. For KAME IPv6 | |
56 | stack. */ | |
57 | #ifdef KAME | |
58 | #define IN6_LINKLOCAL_IFINDEX(a) ((a).s6_addr[2] << 8 | (a).s6_addr[3]) | |
59 | #define SET_IN6_LINKLOCAL_IFINDEX(a, i) \ | |
60 | do { \ | |
61 | (a).s6_addr[2] = ((i) >> 8) & 0xff; \ | |
62 | (a).s6_addr[3] = (i) & 0xff; \ | |
63 | } while (0) | |
64 | #else | |
65 | #define IN6_LINKLOCAL_IFINDEX(a) | |
66 | #define SET_IN6_LINKLOCAL_IFINDEX(a, i) | |
67 | #endif /* KAME */ | |
68 | ||
718e3744 | 69 | #define sockunion_family(X) (X)->sa.sa_family |
70 | ||
0c5ed3ed JBD |
71 | #define sockunion2ip(X) (X)->sin.sin_addr.s_addr |
72 | ||
718e3744 | 73 | /* Prototypes. */ |
8cc4198f | 74 | extern int str2sockunion (const char *, union sockunion *); |
c0d8db4d TT |
75 | extern const char *sockunion2str (const union sockunion *, char *, size_t); |
76 | extern int sockunion_cmp (const union sockunion *, const union sockunion *); | |
3f9c7369 | 77 | extern int sockunion_same (const union sockunion *, const union sockunion *); |
7cb5cdbb | 78 | extern unsigned int sockunion_hash (const union sockunion *); |
718e3744 | 79 | |
95e0999c TT |
80 | extern size_t family2addrsize(int family); |
81 | extern size_t sockunion_get_addrlen(const union sockunion *); | |
82 | extern const u_char *sockunion_get_addr(const union sockunion *); | |
83 | extern void sockunion_set(union sockunion *, int family, const u_char *addr, size_t bytes); | |
84 | ||
2fb2a455 | 85 | extern union sockunion *sockunion_str2su (const char *str); |
8cc4198f | 86 | extern int sockunion_accept (int sock, union sockunion *); |
87 | extern int sockunion_stream_socket (union sockunion *); | |
88 | extern int sockopt_reuseaddr (int); | |
89 | extern int sockopt_reuseport (int); | |
ca051269 | 90 | extern int sockopt_v6only (int family, int sock); |
8cc4198f | 91 | extern int sockunion_bind (int sock, union sockunion *, |
92 | unsigned short, union sockunion *); | |
93 | extern int sockopt_ttl (int family, int sock, int ttl); | |
fa411a21 | 94 | extern int sockopt_minttl (int family, int sock, int minttl); |
58192df7 | 95 | extern int sockopt_cork (int sock, int onoff); |
ed40466a | 96 | extern int sockopt_mark_default(int sock, int mark, struct zebra_privs_t *); |
c0d8db4d TT |
97 | extern int sockunion_socket (const union sockunion *su); |
98 | extern const char *inet_sutop (const union sockunion *su, char *str); | |
99 | extern enum connect_result sockunion_connect (int fd, const union sockunion *su, | |
8cc4198f | 100 | unsigned short port, |
b892f1dd | 101 | ifindex_t); |
8cc4198f | 102 | extern union sockunion *sockunion_getsockname (int); |
103 | extern union sockunion *sockunion_getpeername (int); | |
c0d8db4d | 104 | extern union sockunion *sockunion_dup (const union sockunion *); |
8cc4198f | 105 | extern void sockunion_free (union sockunion *); |
dd793e4a | 106 | extern void sockunion_init (union sockunion *); |
718e3744 | 107 | |
718e3744 | 108 | #endif /* _ZEBRA_SOCKUNION_H */ |