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/* 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. */
/* 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 COMMUNITY_LIST_AUTO 2 /* Automatically detected. */
#define EXTCOMMUNITY_LIST_STANDARD 3 /* Standard extcommunity-list. */
#define EXTCOMMUNITY_LIST_EXPANDED 4 /* Expanded extcommunity-list. */
#define EXTCOMMUNITY_LIST_AUTO 5 /* Automatically detected. */
/* 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;
} 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;
};
/* 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. */
struct community_list_handler *community_list_init ();
int community_list_set (struct community_list_handler *ch, const char *name,
const char *str, int direct, int style);
int community_list_unset (struct community_list_handler *ch, const char *name,
const char *str, int direct, int style);
int extcommunity_list_set (struct community_list_handler *ch, const char *name,
const char *str, int direct, int style);
int extcommunity_list_unset (struct community_list_handler *ch,
const char *name, const char *str,
int direct, int style);
struct community_list_master *
community_list_master_lookup (struct community_list_handler *, int);
struct community_list *
community_list_lookup (struct community_list_handler *, const char *, int);
int community_list_match (struct community *, struct community_list *);
int ecommunity_list_match (struct ecommunity *, struct community_list *);
int community_list_exact_match (struct community *, struct community_list *);
struct community *
community_list_match_delete (struct community *,
struct community_list *);
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