1 /* Useful functions for dealing with collections of IP addresses */
3 * This file is part of secnet.
4 * See README for full list of copyright holders.
6 * secnet is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * secnet is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * version 3 along with secnet; if not, see
18 * https://www.gnu.org/licenses/gpl.html.
41 int32_t l; /* Number of entries in list */
42 int32_t a; /* Allocated space in list */
46 extern struct subnet_list *subnet_list_new(void);
47 extern void subnet_list_free(struct subnet_list *a);
48 extern void subnet_list_append(struct subnet_list *a, uint32_t prefix, int len);
50 static inline bool_t subnet_match(struct subnet s, uint32_t address)
52 return (s.prefix==(address&s.mask));
55 extern struct ipset *ipset_new(void);
56 extern void ipset_free(struct ipset *a);
57 extern struct ipset *ipset_from_subnet(struct subnet s);
58 extern struct ipset *ipset_from_subnet_list(struct subnet_list *l);
59 extern struct ipset *ipset_union(struct ipset *a, struct ipset *b);
60 extern struct ipset *ipset_intersection(struct ipset *a, struct ipset *b);
61 extern struct ipset *ipset_complement(struct ipset *a);
62 extern struct ipset *ipset_subtract(struct ipset *a, struct ipset *b);
63 extern bool_t ipset_is_empty(struct ipset *a);
64 extern bool_t ipset_contains_addr(struct ipset *a, uint32_t addr);
65 extern bool_t ipset_is_subset(struct ipset *super, struct ipset *sub);
66 extern struct subnet_list *ipset_to_subnet_list(struct ipset *is);
68 extern string_t ipaddr_to_string(uint32_t addr);
69 extern string_t subnet_to_string(struct subnet sn);
71 extern struct ipset *string_list_to_ipset(list_t *l,struct cloc loc,
72 cstring_t module, cstring_t param);
74 extern uint32_t string_item_to_ipaddr(const item_t *i, cstring_t desc);