/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2011 Daniel Borkmann, rewritten
 * Copyright 1991-2007 Kawahara Lab., Kyoto University
 * Copyright 2000-2005 Shikano Lab., Nara Institute of Science and Technology
 * Copyright 2005-2007 Julius project team, Nagoya Institute of Technology
 * All rights reserved
 * Subject to the GPL, version 2.
 */

#ifndef PATRICIA_H
#define PATRICIA_H

#include <netinet/in.h>

#include "built_in.h"

struct patricia_node {
	void *key;
	size_t klen;
	struct sockaddr_storage *addr;
	size_t alen;
	union {
		int data;
		int thres_bit;
	} value;
	struct patricia_node *l, *r;
} __cacheline_aligned;

extern int ptree_search_data_nearest(void *str, size_t sstr,
				     struct sockaddr_storage *addr, size_t *alen,
				     struct patricia_node *root);
extern int ptree_search_data_exact(void *str, size_t sstr,
				   struct sockaddr_storage *addr, size_t *alen,
				   struct patricia_node *root);
extern int ptree_add_entry(void *str, size_t sstr, int data,
			   struct sockaddr_storage *addr, size_t alen,
			   struct patricia_node **root);
extern void ptree_del_entry(void *str, size_t sstr,
			    struct patricia_node **root);
extern void ptree_get_key(int data, struct patricia_node *node,
			  struct patricia_node **wanted);
extern void ptree_get_key_addr(struct sockaddr_storage *addr, size_t alen,
			       struct patricia_node *node,
			       struct patricia_node **wanted);
extern void ptree_display(struct patricia_node *node, int level);
extern void ptree_free(struct patricia_node *root);

#endif /* PATRICIA_H */