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3b5f4af2 MT |
1 | /* |
2 | libloc - A library to determine the location of someone on the Internet | |
3 | ||
e17e804e | 4 | Copyright (C) 2017-2021 IPFire Development Team <info@ipfire.org> |
3b5f4af2 MT |
5 | |
6 | This library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | This library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | */ | |
16 | ||
17 | #ifndef LIBLOC_NETWORK_H | |
18 | #define LIBLOC_NETWORK_H | |
19 | ||
20 | #include <netinet/in.h> | |
21 | ||
22 | #include <loc/libloc.h> | |
f3e02bc5 | 23 | #include <loc/format.h> |
e0b9ff5f | 24 | #include <loc/network-list.h> |
3b5f4af2 | 25 | |
a293f829 MT |
26 | enum loc_network_flags { |
27 | LOC_NETWORK_FLAG_ANONYMOUS_PROXY = (1 << 0), // A1 | |
28 | LOC_NETWORK_FLAG_SATELLITE_PROVIDER = (1 << 1), // A2 | |
29 | LOC_NETWORK_FLAG_ANYCAST = (1 << 2), // A3 | |
e17e804e | 30 | LOC_NETWORK_FLAG_DROP = (1 << 3), // XD |
a293f829 MT |
31 | }; |
32 | ||
3b5f4af2 MT |
33 | struct loc_network; |
34 | int loc_network_new(struct loc_ctx* ctx, struct loc_network** network, | |
ce4f5752 | 35 | struct in6_addr* first_address, unsigned int prefix); |
3b5f4af2 MT |
36 | int loc_network_new_from_string(struct loc_ctx* ctx, struct loc_network** network, |
37 | const char* address_string); | |
38 | struct loc_network* loc_network_ref(struct loc_network* network); | |
39 | struct loc_network* loc_network_unref(struct loc_network* network); | |
40 | char* loc_network_str(struct loc_network* network); | |
44e5ef71 | 41 | int loc_network_address_family(struct loc_network* network); |
7fe6a218 | 42 | unsigned int loc_network_prefix(struct loc_network* network); |
2b9338ea | 43 | |
a1a00053 | 44 | const struct in6_addr* loc_network_get_first_address(struct loc_network* network); |
2b9338ea | 45 | char* loc_network_format_first_address(struct loc_network* network); |
a1a00053 | 46 | const struct in6_addr* loc_network_get_last_address(struct loc_network* network); |
2b9338ea | 47 | char* loc_network_format_last_address(struct loc_network* network); |
2a30e4de | 48 | int loc_network_match_address(struct loc_network* network, const struct in6_addr* address); |
3b5f4af2 MT |
49 | |
50 | const char* loc_network_get_country_code(struct loc_network* network); | |
51 | int loc_network_set_country_code(struct loc_network* network, const char* country_code); | |
e3f696c1 | 52 | int loc_network_match_country_code(struct loc_network* network, const char* country_code); |
3b5f4af2 | 53 | |
71ff3e69 MT |
54 | uint32_t loc_network_get_asn(struct loc_network* network); |
55 | int loc_network_set_asn(struct loc_network* network, uint32_t asn); | |
82910b95 | 56 | int loc_network_match_asn(struct loc_network* network, uint32_t asn); |
71ff3e69 | 57 | |
a99e7c2b MT |
58 | int loc_network_has_flag(struct loc_network* network, uint32_t flag); |
59 | int loc_network_set_flag(struct loc_network* network, uint32_t flag); | |
60 | int loc_network_match_flag(struct loc_network* network, uint32_t flag); | |
61 | ||
af4689bf | 62 | int loc_network_cmp(struct loc_network* self, struct loc_network* other); |
6159d384 | 63 | int loc_network_overlaps(struct loc_network* self, struct loc_network* other); |
33a051e0 | 64 | int loc_network_is_subnet(struct loc_network* self, struct loc_network* other); |
a5967330 | 65 | int loc_network_subnets(struct loc_network* network, struct loc_network** subnet1, struct loc_network** subnet2); |
850e7516 MT |
66 | struct loc_network_list* loc_network_exclude( |
67 | struct loc_network* self, struct loc_network* other); | |
add5bb65 MT |
68 | struct loc_network_list* loc_network_exclude_list( |
69 | struct loc_network* network, struct loc_network_list* list); | |
43554dc4 | 70 | |
30ac38a1 MT |
71 | #ifdef LIBLOC_PRIVATE |
72 | ||
71877f5f MT |
73 | |
74 | static inline struct in6_addr address_increment(const struct in6_addr* address) { | |
75 | struct in6_addr a = *address; | |
76 | ||
77 | for (int octet = 15; octet >= 0; octet--) { | |
78 | if (a.s6_addr[octet] < 255) { | |
79 | a.s6_addr[octet]++; | |
80 | break; | |
81 | } else { | |
82 | a.s6_addr[octet] = 0; | |
83 | } | |
84 | } | |
85 | ||
86 | return a; | |
87 | } | |
88 | ||
89 | static inline struct in6_addr address_decrement(const struct in6_addr* address) { | |
90 | struct in6_addr a = *address; | |
91 | ||
92 | for (int octet = 15; octet >= 0; octet--) { | |
93 | if (a.s6_addr[octet] > 0) { | |
94 | a.s6_addr[octet]--; | |
95 | break; | |
96 | } | |
97 | } | |
98 | ||
99 | return a; | |
100 | } | |
101 | ||
102 | static inline int loc_address_family(const struct in6_addr* address) { | |
103 | if (IN6_IS_ADDR_V4MAPPED(address)) | |
104 | return AF_INET; | |
105 | else | |
106 | return AF_INET6; | |
107 | } | |
108 | ||
109 | static inline int loc_address_count_trailing_zero_bits(const struct in6_addr* address) { | |
110 | int zeroes = 0; | |
111 | ||
112 | for (int octet = 15; octet >= 0; octet--) { | |
113 | if (address->s6_addr[octet]) { | |
114 | zeroes += __builtin_ctz(address->s6_addr[octet]); | |
115 | break; | |
116 | } else | |
117 | zeroes += 8; | |
118 | } | |
119 | ||
120 | return zeroes; | |
121 | } | |
122 | ||
b904896a MT |
123 | int loc_network_to_database_v1(struct loc_network* network, struct loc_database_network_v1* dbobj); |
124 | int loc_network_new_from_database_v1(struct loc_ctx* ctx, struct loc_network** network, | |
125 | struct in6_addr* address, unsigned int prefix, const struct loc_database_network_v1* dbobj); | |
f3e02bc5 | 126 | |
3b5f4af2 MT |
127 | struct loc_network_tree; |
128 | int loc_network_tree_new(struct loc_ctx* ctx, struct loc_network_tree** tree); | |
129 | struct loc_network_tree* loc_network_tree_unref(struct loc_network_tree* tree); | |
438db08c | 130 | struct loc_network_tree_node* loc_network_tree_get_root(struct loc_network_tree* tree); |
f3e02bc5 MT |
131 | int loc_network_tree_walk(struct loc_network_tree* tree, |
132 | int(*filter_callback)(struct loc_network* network, void* data), | |
133 | int(*callback)(struct loc_network* network, void* data), void* data); | |
3b5f4af2 MT |
134 | int loc_network_tree_dump(struct loc_network_tree* tree); |
135 | int loc_network_tree_add_network(struct loc_network_tree* tree, struct loc_network* network); | |
f3e02bc5 | 136 | size_t loc_network_tree_count_networks(struct loc_network_tree* tree); |
940f9c2b | 137 | size_t loc_network_tree_count_nodes(struct loc_network_tree* tree); |
3b5f4af2 | 138 | |
438db08c MT |
139 | struct loc_network_tree_node; |
140 | int loc_network_tree_node_new(struct loc_ctx* ctx, struct loc_network_tree_node** node); | |
141 | struct loc_network_tree_node* loc_network_tree_node_ref(struct loc_network_tree_node* node); | |
142 | struct loc_network_tree_node* loc_network_tree_node_unref(struct loc_network_tree_node* node); | |
143 | struct loc_network_tree_node* loc_network_tree_node_get(struct loc_network_tree_node* node, unsigned int index); | |
144 | ||
145 | int loc_network_tree_node_is_leaf(struct loc_network_tree_node* node); | |
146 | struct loc_network* loc_network_tree_node_get_network(struct loc_network_tree_node* node); | |
147 | ||
3b5f4af2 | 148 | #endif |
30ac38a1 | 149 | #endif |