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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3b653205 LP |
2 | #pragma once |
3 | ||
3b653205 | 4 | #include <netinet/in.h> |
11c3a366 TA |
5 | #include <stddef.h> |
6 | #include <sys/socket.h> | |
3b653205 | 7 | |
6c39e026 | 8 | #include "hash-funcs.h" |
3b653205 LP |
9 | #include "macro.h" |
10 | #include "util.h" | |
11 | ||
12 | union in_addr_union { | |
13 | struct in_addr in; | |
14 | struct in6_addr in6; | |
15 | }; | |
16 | ||
97e5d693 LP |
17 | struct in_addr_data { |
18 | int family; | |
19 | union in_addr_union address; | |
20 | }; | |
21 | ||
34380032 | 22 | bool in4_addr_is_null(const struct in_addr *a); |
af93291c | 23 | int in_addr_is_null(int family, const union in_addr_union *u); |
fdedbe26 | 24 | |
85257f48 SS |
25 | int in_addr_is_multicast(int family, const union in_addr_union *u); |
26 | ||
fdedbe26 | 27 | bool in4_addr_is_link_local(const struct in_addr *a); |
af93291c | 28 | int in_addr_is_link_local(int family, const union in_addr_union *u); |
fdedbe26 LP |
29 | |
30 | bool in4_addr_is_localhost(const struct in_addr *a); | |
d830ebbd | 31 | int in_addr_is_localhost(int family, const union in_addr_union *u); |
fdedbe26 | 32 | |
623a4c97 | 33 | int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b); |
0dd25fb9 LP |
34 | int in_addr_prefix_intersect(int family, const union in_addr_union *a, unsigned aprefixlen, const union in_addr_union *b, unsigned bprefixlen); |
35 | int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen); | |
36 | int in_addr_to_string(int family, const union in_addr_union *u, char **ret); | |
2817157b | 37 | int in_addr_ifindex_to_string(int family, const union in_addr_union *u, int ifindex, char **ret); |
0dd25fb9 | 38 | int in_addr_from_string(int family, const char *s, union in_addr_union *ret); |
4e2d5273 | 39 | int in_addr_from_string_auto(const char *s, int *ret_family, union in_addr_union *ret); |
2817157b | 40 | int in_addr_ifindex_from_string_auto(const char *s, int *family, union in_addr_union *ret, int *ifindex); |
5a941f5f LP |
41 | unsigned char in4_addr_netmask_to_prefixlen(const struct in_addr *addr); |
42 | struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen); | |
43 | int in4_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen); | |
44 | int in4_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask); | |
5a8bcb67 | 45 | int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen); |
1274b6c6 | 46 | int in_addr_prefix_covers(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address); |
f4912f3a | 47 | int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret); |
9e0fdc21 YW |
48 | int in_addr_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen); |
49 | ||
50 | typedef enum InAddrPrefixLenMode { | |
51 | PREFIXLEN_FULL, /* Default to prefixlen of address size, 32 for IPv4 or 128 for IPv6, if not specified. */ | |
52 | PREFIXLEN_REFUSE, /* Fail with -ENOANO if prefixlen is not specified. */ | |
53 | PREFIXLEN_LEGACY, /* Default to legacy default prefixlen calculation from address if not specified. */ | |
54 | } InAddrPrefixLenMode; | |
55 | ||
56 | int in_addr_prefix_from_string_auto_internal(const char *p, InAddrPrefixLenMode mode, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen); | |
a4798d4e | 57 | static inline int in_addr_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen) { |
9e0fdc21 | 58 | return in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_FULL, ret_family, ret_prefix, ret_prefixlen); |
a4798d4e | 59 | } |
3b653205 | 60 | |
9d485985 | 61 | static inline size_t FAMILY_ADDRESS_SIZE(int family) { |
3742095b | 62 | assert(IN_SET(family, AF_INET, AF_INET6)); |
9d485985 | 63 | return family == AF_INET6 ? 16 : 4; |
3b653205 | 64 | } |
5a8bcb67 | 65 | |
adea26ee YW |
66 | /* Workaround for clang, explicitly specify the maximum-size element here. |
67 | * See also oss-fuzz#11344. */ | |
68 | #define IN_ADDR_NULL ((union in_addr_union) { .in6 = {} }) | |
6c39e026 | 69 | |
6c39e026 | 70 | extern const struct hash_ops in_addr_data_hash_ops; |