| | 1 | /* Useful functions for dealing with collections of IP addresses */ |
| | 2 | |
| | 3 | #ifndef ipaddr_h |
| | 4 | #define ipaddr_h |
| | 5 | |
| | 6 | struct subnet { |
| | 7 | uint32_t prefix; |
| | 8 | uint32_t mask; |
| | 9 | int len; |
| | 10 | }; |
| | 11 | |
| | 12 | struct subnet_list { |
| | 13 | int32_t entries; |
| | 14 | int32_t alloc; |
| | 15 | struct subnet *list; |
| | 16 | }; |
| | 17 | |
| | 18 | struct iprange { |
| | 19 | uint32_t a,b; |
| | 20 | }; |
| | 21 | |
| | 22 | struct ipset { |
| | 23 | int32_t l; /* Number of entries in list */ |
| | 24 | int32_t a; /* Allocated space in list */ |
| | 25 | struct iprange *d; |
| | 26 | }; |
| | 27 | |
| | 28 | extern struct subnet_list *subnet_list_new(void); |
| | 29 | extern void subnet_list_free(struct subnet_list *a); |
| | 30 | extern void subnet_list_append(struct subnet_list *a, uint32_t prefix, int len); |
| | 31 | |
| | 32 | static inline bool_t subnet_match(struct subnet s, uint32_t address) |
| | 33 | { |
| | 34 | return (s.prefix==(address&s.mask)); |
| | 35 | } |
| | 36 | |
| | 37 | extern struct ipset *ipset_new(void); |
| | 38 | extern void ipset_free(struct ipset *a); |
| | 39 | extern struct ipset *ipset_from_subnet(struct subnet s); |
| | 40 | extern struct ipset *ipset_from_subnet_list(struct subnet_list *l); |
| | 41 | extern struct ipset *ipset_union(struct ipset *a, struct ipset *b); |
| | 42 | extern struct ipset *ipset_intersection(struct ipset *a, struct ipset *b); |
| | 43 | extern struct ipset *ipset_complement(struct ipset *a); |
| | 44 | extern struct ipset *ipset_subtract(struct ipset *a, struct ipset *b); |
| | 45 | extern bool_t ipset_is_empty(struct ipset *a); |
| | 46 | extern bool_t ipset_contains_addr(struct ipset *a, uint32_t addr); |
| | 47 | extern bool_t ipset_is_subset(struct ipset *super, struct ipset *sub); |
| | 48 | extern struct subnet_list *ipset_to_subnet_list(struct ipset *is); |
| | 49 | |
| | 50 | extern string_t ipaddr_to_string(uint32_t addr); |
| | 51 | extern string_t subnet_to_string(struct subnet sn); |
| | 52 | |
| | 53 | extern struct ipset *string_list_to_ipset(list_t *l,struct cloc loc, |
| | 54 | cstring_t module, cstring_t param); |
| | 55 | |
| | 56 | extern uint32_t string_item_to_ipaddr(const item_t *i, cstring_t desc); |
| | 57 | |
| | 58 | #endif /* ipaddr_h */ |
~mdw / secnet / blame_incremental