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// SPDX-License-Identifier: GPL-2.0-or-later
/* AS path filter list.
* Copyright (C) 1999 Kunihiro Ishiguro
*/
#ifndef _QUAGGA_BGP_FILTER_H
#define _QUAGGA_BGP_FILTER_H
#include <typesafe.h>
#define ASPATH_SEQ_NUMBER_AUTO -1
enum as_filter_type { AS_FILTER_DENY, AS_FILTER_PERMIT };
/* Element of AS path filter. */
struct as_filter {
struct as_filter *next;
struct as_filter *prev;
enum as_filter_type type;
regex_t *reg;
char *reg_str;
/* Sequence number. */
int64_t seq;
};
PREDECL_DLIST(as_list_list);
/* AS path filter list. */
struct as_list {
char *name;
struct as_list *next;
struct as_list *prev;
struct as_filter *head;
struct as_filter *tail;
/* Changes in AS path */
struct as_list_list_head exclude_rule;
};
extern void bgp_filter_init(void);
extern void bgp_filter_reset(void);
extern enum as_filter_type as_list_apply(struct as_list *, void *);
extern struct as_list *as_list_lookup(const char *);
extern void as_list_add_hook(void (*func)(char *));
extern void as_list_delete_hook(void (*func)(const char *));
extern bool config_bgp_aspath_validate(const char *regstr);
#endif /* _QUAGGA_BGP_FILTER_H */
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