bgp_clist.h
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上传日期:2009-11-15
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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. */
- /* Master Community-list. */
- #define COMMUNITY_LIST_MASTER 0
- #define EXTCOMMUNITY_LIST_MASTER 1
- /* 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. */
- /* 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,
- char *name, char *str, int direct, int style);
- int community_list_unset (struct community_list_handler *ch,
- char *name, char *str, int direct, int style);
- int extcommunity_list_set (struct community_list_handler *ch,
- char *name, char *str, int direct, int style);
- int extcommunity_list_unset (struct community_list_handler *ch,
- char *name, 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 *, 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 *);