debianpkg: Add Debian 9 Package support

[mirror_frr.git] / bgpd / bgp_clist.h

/* BGP Community list.
   Copyright (C) 1999 Kunihiro Ishiguro

This file is part of GNU Zebra.

GNU Zebra is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

GNU Zebra is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Zebra; see the file COPYING.  If not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.  */

#ifndef _QUAGGA_BGP_CLIST_H
#define _QUAGGA_BGP_CLIST_H

/* Master Community-list. */
#define COMMUNITY_LIST_MASTER          0
#define EXTCOMMUNITY_LIST_MASTER       1
#define LARGE_COMMUNITY_LIST_MASTER    2

/* Community-list deny and permit.  */
#define COMMUNITY_DENY                 0
#define COMMUNITY_PERMIT               1

/* Number and string based community-list name.  */
#define COMMUNITY_LIST_STRING          0
#define COMMUNITY_LIST_NUMBER          1

/* Community-list entry types.  */
#define COMMUNITY_LIST_STANDARD        0 /* Standard community-list.  */
#define COMMUNITY_LIST_EXPANDED        1 /* Expanded community-list.  */
#define EXTCOMMUNITY_LIST_STANDARD     2 /* Standard extcommunity-list.  */
#define EXTCOMMUNITY_LIST_EXPANDED     3 /* Expanded extcommunity-list.  */
#define LARGE_COMMUNITY_LIST_STANDARD  4 /* Standard Large community-list.  */
#define LARGE_COMMUNITY_LIST_EXPANDED  5 /* Expanded Large community-list.  */

/* Community-list.  */
struct community_list {
	/* Name of the community-list.  */
	char *name;

	/* String or number.  */
	int sort;

	/* Link to upper list.  */
	struct community_list_list *parent;

	/* Linked list for other community-list.  */
	struct community_list *next;
	struct community_list *prev;

	/* Community-list entry in this community-list.  */
	struct community_entry *head;
	struct community_entry *tail;
};

/* Each entry in community-list.  */
struct community_entry {
	struct community_entry *next;
	struct community_entry *prev;

	/* Permit or deny.  */
	u_char direct;

	/* Standard or expanded.  */
	u_char style;

	/* Any match.  */
	u_char any;

	/* Community structure.  */
	union {
		struct community *com;
		struct ecommunity *ecom;
		struct lcommunity *lcom;
	} u;

	/* Configuration string.  */
	char *config;

	/* Expanded community-list regular expression.  */
	regex_t *reg;
};

/* Linked list of community-list.  */
struct community_list_list {
	struct community_list *head;
	struct community_list *tail;
};

/* Master structure of community-list and extcommunity-list.  */
struct community_list_master {
	struct community_list_list num;
	struct community_list_list str;
};

/* Community-list handler.  community_list_init() returns this
   structure as handler.  */
struct community_list_handler {
	/* Community-list.  */
	struct community_list_master community_list;

	/* Exteded community-list.  */
	struct community_list_master extcommunity_list;

	/* Large community-list.  */
	struct community_list_master lcommunity_list;
};

/* Error code of community-list.  */
#define COMMUNITY_LIST_ERR_CANT_FIND_LIST        -1
#define COMMUNITY_LIST_ERR_MALFORMED_VAL         -2
#define COMMUNITY_LIST_ERR_STANDARD_CONFLICT     -3
#define COMMUNITY_LIST_ERR_EXPANDED_CONFLICT     -4

/* Handler.  */
extern struct community_list_handler *bgp_clist;

/* Prototypes.  */
extern struct community_list_handler *community_list_init(void);
extern void community_list_terminate(struct community_list_handler *);

extern int community_list_set(struct community_list_handler *ch,
			      const char *name, const char *str, int direct,
			      int style);
extern int community_list_unset(struct community_list_handler *ch,
				const char *name, const char *str, int direct,
				int style, int delete_all);
extern int extcommunity_list_set(struct community_list_handler *ch,
				 const char *name, const char *str, int direct,
				 int style);
extern int extcommunity_list_unset(struct community_list_handler *ch,
				   const char *name, const char *str,
				   int direct, int style, int delete_all);
extern int lcommunity_list_set(struct community_list_handler *ch,
			       const char *name, const char *str, int direct,
			       int style);
extern int lcommunity_list_unset(struct community_list_handler *ch,
				 const char *name, const char *str, int direct,
				 int style);

extern struct community_list_master *
community_list_master_lookup(struct community_list_handler *, int);

extern struct community_list *
community_list_lookup(struct community_list_handler *, const char *, int);

extern int community_list_match(struct community *, struct community_list *);
extern int ecommunity_list_match(struct ecommunity *, struct community_list *);
extern int lcommunity_list_match(struct lcommunity *, struct community_list *);
extern int community_list_exact_match(struct community *,
				      struct community_list *);
extern struct community *community_list_match_delete(struct community *,
						     struct community_list *);
extern struct lcommunity *
lcommunity_list_match_delete(struct lcommunity *lcom,
			     struct community_list *list);
#endif /* _QUAGGA_BGP_CLIST_H */