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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 | ||
c12a1385 MT |
22 | #include <libloc/libloc.h> |
23 | #include <libloc/format.h> | |
24 | #include <libloc/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); | |
a99e7c2b | 60 | |
af4689bf | 61 | int loc_network_cmp(struct loc_network* self, struct loc_network* other); |
6159d384 | 62 | int loc_network_overlaps(struct loc_network* self, struct loc_network* other); |
33a051e0 | 63 | int loc_network_is_subnet(struct loc_network* self, struct loc_network* other); |
a5967330 | 64 | int loc_network_subnets(struct loc_network* network, struct loc_network** subnet1, struct loc_network** subnet2); |
850e7516 MT |
65 | struct loc_network_list* loc_network_exclude( |
66 | struct loc_network* self, struct loc_network* other); | |
add5bb65 MT |
67 | struct loc_network_list* loc_network_exclude_list( |
68 | struct loc_network* network, struct loc_network_list* list); | |
43554dc4 | 69 | |
30ac38a1 MT |
70 | #ifdef LIBLOC_PRIVATE |
71 | ||
71877f5f MT |
72 | |
73 | static inline struct in6_addr address_increment(const struct in6_addr* address) { | |
74 | struct in6_addr a = *address; | |
75 | ||
76 | for (int octet = 15; octet >= 0; octet--) { | |
77 | if (a.s6_addr[octet] < 255) { | |
78 | a.s6_addr[octet]++; | |
79 | break; | |
80 | } else { | |
81 | a.s6_addr[octet] = 0; | |
82 | } | |
83 | } | |
84 | ||
85 | return a; | |
86 | } | |
87 | ||
88 | static inline struct in6_addr address_decrement(const struct in6_addr* address) { | |
89 | struct in6_addr a = *address; | |
90 | ||
91 | for (int octet = 15; octet >= 0; octet--) { | |
92 | if (a.s6_addr[octet] > 0) { | |
93 | a.s6_addr[octet]--; | |
94 | break; | |
95 | } | |
96 | } | |
97 | ||
98 | return a; | |
99 | } | |
100 | ||
101 | static inline int loc_address_family(const struct in6_addr* address) { | |
102 | if (IN6_IS_ADDR_V4MAPPED(address)) | |
103 | return AF_INET; | |
104 | else | |
105 | return AF_INET6; | |
106 | } | |
107 | ||
108 | static inline int loc_address_count_trailing_zero_bits(const struct in6_addr* address) { | |
109 | int zeroes = 0; | |
110 | ||
111 | for (int octet = 15; octet >= 0; octet--) { | |
112 | if (address->s6_addr[octet]) { | |
113 | zeroes += __builtin_ctz(address->s6_addr[octet]); | |
114 | break; | |
115 | } else | |
116 | zeroes += 8; | |
117 | } | |
118 | ||
119 | return zeroes; | |
120 | } | |
121 | ||
b904896a MT |
122 | int loc_network_to_database_v1(struct loc_network* network, struct loc_database_network_v1* dbobj); |
123 | int loc_network_new_from_database_v1(struct loc_ctx* ctx, struct loc_network** network, | |
124 | struct in6_addr* address, unsigned int prefix, const struct loc_database_network_v1* dbobj); | |
f3e02bc5 | 125 | |
3b5f4af2 MT |
126 | struct loc_network_tree; |
127 | int loc_network_tree_new(struct loc_ctx* ctx, struct loc_network_tree** tree); | |
128 | struct loc_network_tree* loc_network_tree_unref(struct loc_network_tree* tree); | |
438db08c | 129 | struct loc_network_tree_node* loc_network_tree_get_root(struct loc_network_tree* tree); |
f3e02bc5 MT |
130 | int loc_network_tree_walk(struct loc_network_tree* tree, |
131 | int(*filter_callback)(struct loc_network* network, void* data), | |
132 | int(*callback)(struct loc_network* network, void* data), void* data); | |
3b5f4af2 MT |
133 | int loc_network_tree_dump(struct loc_network_tree* tree); |
134 | int loc_network_tree_add_network(struct loc_network_tree* tree, struct loc_network* network); | |
f3e02bc5 | 135 | size_t loc_network_tree_count_networks(struct loc_network_tree* tree); |
940f9c2b | 136 | size_t loc_network_tree_count_nodes(struct loc_network_tree* tree); |
3b5f4af2 | 137 | |
438db08c MT |
138 | struct loc_network_tree_node; |
139 | int loc_network_tree_node_new(struct loc_ctx* ctx, struct loc_network_tree_node** node); | |
140 | struct loc_network_tree_node* loc_network_tree_node_ref(struct loc_network_tree_node* node); | |
141 | struct loc_network_tree_node* loc_network_tree_node_unref(struct loc_network_tree_node* node); | |
142 | struct loc_network_tree_node* loc_network_tree_node_get(struct loc_network_tree_node* node, unsigned int index); | |
143 | ||
144 | int loc_network_tree_node_is_leaf(struct loc_network_tree_node* node); | |
145 | struct loc_network* loc_network_tree_node_get_network(struct loc_network_tree_node* node); | |
146 | ||
3b5f4af2 | 147 | #endif |
30ac38a1 | 148 | #endif |