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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3b653205 LP |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2014 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
23 | #include <netinet/in.h> | |
11c3a366 TA |
24 | #include <stddef.h> |
25 | #include <sys/socket.h> | |
3b653205 LP |
26 | |
27 | #include "macro.h" | |
28 | #include "util.h" | |
29 | ||
30 | union in_addr_union { | |
31 | struct in_addr in; | |
32 | struct in6_addr in6; | |
33 | }; | |
34 | ||
97e5d693 LP |
35 | struct in_addr_data { |
36 | int family; | |
37 | union in_addr_union address; | |
38 | }; | |
39 | ||
34380032 | 40 | bool in4_addr_is_null(const struct in_addr *a); |
af93291c | 41 | int in_addr_is_null(int family, const union in_addr_union *u); |
fdedbe26 | 42 | |
85257f48 SS |
43 | int in_addr_is_multicast(int family, const union in_addr_union *u); |
44 | ||
fdedbe26 | 45 | bool in4_addr_is_link_local(const struct in_addr *a); |
af93291c | 46 | int in_addr_is_link_local(int family, const union in_addr_union *u); |
fdedbe26 LP |
47 | |
48 | bool in4_addr_is_localhost(const struct in_addr *a); | |
d830ebbd | 49 | int in_addr_is_localhost(int family, const union in_addr_union *u); |
fdedbe26 | 50 | |
623a4c97 | 51 | int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b); |
0dd25fb9 LP |
52 | int in_addr_prefix_intersect(int family, const union in_addr_union *a, unsigned aprefixlen, const union in_addr_union *b, unsigned bprefixlen); |
53 | int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen); | |
54 | int in_addr_to_string(int family, const union in_addr_union *u, char **ret); | |
2817157b | 55 | int in_addr_ifindex_to_string(int family, const union in_addr_union *u, int ifindex, char **ret); |
0dd25fb9 | 56 | int in_addr_from_string(int family, const char *s, union in_addr_union *ret); |
4e2d5273 | 57 | int in_addr_from_string_auto(const char *s, int *ret_family, union in_addr_union *ret); |
2817157b | 58 | int in_addr_ifindex_from_string_auto(const char *s, int *family, union in_addr_union *ret, int *ifindex); |
5a941f5f LP |
59 | unsigned char in4_addr_netmask_to_prefixlen(const struct in_addr *addr); |
60 | struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen); | |
61 | int in4_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen); | |
62 | int in4_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask); | |
5a8bcb67 | 63 | int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen); |
1274b6c6 | 64 | int in_addr_prefix_covers(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address); |
f4912f3a LP |
65 | int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret); |
66 | int in_addr_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen); | |
67 | int in_addr_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen); | |
3b653205 | 68 | |
9d485985 | 69 | static inline size_t FAMILY_ADDRESS_SIZE(int family) { |
3742095b | 70 | assert(IN_SET(family, AF_INET, AF_INET6)); |
9d485985 | 71 | return family == AF_INET6 ? 16 : 4; |
3b653205 | 72 | } |
5a8bcb67 LP |
73 | |
74 | #define IN_ADDR_NULL ((union in_addr_union) {}) |