diff options
Diffstat (limited to 'include/filter.h')
-rw-r--r-- | include/filter.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/filter.h b/include/filter.h new file mode 100644 index 0000000..de0754e --- /dev/null +++ b/include/filter.h @@ -0,0 +1,31 @@ +#ifndef _FILTER_H_ +#define _FILTER_H_ + +#include <stdint.h> + +enum ct_filter_type { + CT_FILTER_L4PROTO, + CT_FILTER_STATE, + CT_FILTER_ADDRESS, + CT_FILTER_MAX +}; + +enum ct_filter_logic { + CT_FILTER_NEGATIVE = 0, + CT_FILTER_POSITIVE = 1, +}; + +struct nf_conntrack; +struct ct_filter; + +struct ct_filter *ct_filter_create(void); +void ct_filter_destroy(struct ct_filter *filter); +int ct_filter_add_ip(struct ct_filter *filter, void *data, uint8_t family); +void ct_filter_add_proto(struct ct_filter *filter, int protonum); +void ct_filter_add_state(struct ct_filter *f, int protonum, int state); +void ct_filter_set_logic(struct ct_filter *f, + enum ct_filter_type type, + enum ct_filter_logic logic); +int ct_filter_check(struct ct_filter *filter, struct nf_conntrack *ct); + +#endif |