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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 | ||
26 | #if 0 | |
27 | union sockunion { | |
28 | struct sockinet { | |
29 | u_char si_len; | |
30 | u_char si_family; | |
31 | u_short si_port; | |
32 | } su_si; | |
33 | struct sockaddr_in su_sin; | |
34 | struct sockaddr_in6 su_sin6; | |
35 | }; | |
36 | #define su_len su_si.si_len | |
37 | #define su_family su_si.si_family | |
38 | #define su_port su_si.si_port | |
39 | #endif /* 0 */ | |
40 | ||
41 | union sockunion | |
42 | { | |
43 | struct sockaddr sa; | |
44 | struct sockaddr_in sin; | |
45 | #ifdef HAVE_IPV6 | |
46 | struct sockaddr_in6 sin6; | |
47 | #endif /* HAVE_IPV6 */ | |
48 | }; | |
49 | ||
50 | enum connect_result | |
51 | { | |
52 | connect_error, | |
53 | connect_success, | |
54 | connect_in_progress | |
55 | }; | |
56 | ||
57 | /* Default address family. */ | |
58 | #ifdef HAVE_IPV6 | |
59 | #define AF_INET_UNION AF_INET6 | |
60 | #else | |
61 | #define AF_INET_UNION AF_INET | |
62 | #endif | |
63 | ||
64 | /* Sockunion address string length. Same as INET6_ADDRSTRLEN. */ | |
65 | #define SU_ADDRSTRLEN 46 | |
66 | ||
67 | /* Macro to set link local index to the IPv6 address. For KAME IPv6 | |
68 | stack. */ | |
69 | #ifdef KAME | |
70 | #define IN6_LINKLOCAL_IFINDEX(a) ((a).s6_addr[2] << 8 | (a).s6_addr[3]) | |
71 | #define SET_IN6_LINKLOCAL_IFINDEX(a, i) \ | |
72 | do { \ | |
73 | (a).s6_addr[2] = ((i) >> 8) & 0xff; \ | |
74 | (a).s6_addr[3] = (i) & 0xff; \ | |
75 | } while (0) | |
76 | #else | |
77 | #define IN6_LINKLOCAL_IFINDEX(a) | |
78 | #define SET_IN6_LINKLOCAL_IFINDEX(a, i) | |
79 | #endif /* KAME */ | |
80 | ||
718e3744 | 81 | #define sockunion_family(X) (X)->sa.sa_family |
82 | ||
0c5ed3ed JBD |
83 | #define sockunion2ip(X) (X)->sin.sin_addr.s_addr |
84 | ||
718e3744 | 85 | /* Prototypes. */ |
8cc4198f | 86 | extern int str2sockunion (const char *, union sockunion *); |
87 | extern const char *sockunion2str (union sockunion *, char *, size_t); | |
88 | extern int sockunion_cmp (union sockunion *, union sockunion *); | |
3f9c7369 | 89 | extern int sockunion_same (const union sockunion *, const union sockunion *); |
718e3744 | 90 | |
2fb2a455 | 91 | extern union sockunion *sockunion_str2su (const char *str); |
8cc4198f | 92 | extern int sockunion_accept (int sock, union sockunion *); |
93 | extern int sockunion_stream_socket (union sockunion *); | |
94 | extern int sockopt_reuseaddr (int); | |
95 | extern int sockopt_reuseport (int); | |
ca051269 | 96 | extern int sockopt_v6only (int family, int sock); |
8cc4198f | 97 | extern int sockunion_bind (int sock, union sockunion *, |
98 | unsigned short, union sockunion *); | |
99 | extern int sockopt_ttl (int family, int sock, int ttl); | |
fa411a21 | 100 | extern int sockopt_minttl (int family, int sock, int minttl); |
58192df7 | 101 | extern int sockopt_cork (int sock, int onoff); |
8cc4198f | 102 | extern int sockunion_socket (union sockunion *su); |
103 | extern const char *inet_sutop (union sockunion *su, char *str); | |
104 | extern enum connect_result sockunion_connect (int fd, union sockunion *su, | |
105 | unsigned short port, | |
106 | unsigned int); | |
107 | extern union sockunion *sockunion_getsockname (int); | |
108 | extern union sockunion *sockunion_getpeername (int); | |
109 | extern union sockunion *sockunion_dup (union sockunion *); | |
110 | extern void sockunion_free (union sockunion *); | |
718e3744 | 111 | |
112 | #ifndef HAVE_INET_NTOP | |
8cc4198f | 113 | extern const char * inet_ntop (int family, const void *addrptr, |
114 | char *strptr, size_t len); | |
718e3744 | 115 | #endif /* HAVE_INET_NTOP */ |
116 | ||
117 | #ifndef HAVE_INET_PTON | |
8cc4198f | 118 | extern int inet_pton (int family, const char *strptr, void *addrptr); |
718e3744 | 119 | #endif /* HAVE_INET_PTON */ |
120 | ||
121 | #ifndef HAVE_INET_ATON | |
8cc4198f | 122 | extern int inet_aton (const char *cp, struct in_addr *inaddr); |
718e3744 | 123 | #endif |
124 | ||
125 | #endif /* _ZEBRA_SOCKUNION_H */ |