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a7e046a20a
strlen is the same as sizeof when the memory is dynamically allocated but it is not the same when the memory being looked at is an array. Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
180 lines
5.6 KiB
C
180 lines
5.6 KiB
C
/* BGP Community list.
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* Copyright (C) 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _QUAGGA_BGP_CLIST_H
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#define _QUAGGA_BGP_CLIST_H
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#include "jhash.h"
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/* Master Community-list. */
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#define COMMUNITY_LIST_MASTER 0
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#define EXTCOMMUNITY_LIST_MASTER 1
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#define LARGE_COMMUNITY_LIST_MASTER 2
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/* Community-list deny and permit. */
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#define COMMUNITY_DENY 0
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#define COMMUNITY_PERMIT 1
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/* Number and string based community-list name. */
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#define COMMUNITY_LIST_STRING 0
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#define COMMUNITY_LIST_NUMBER 1
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/* Community-list entry types. */
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#define COMMUNITY_LIST_STANDARD 0 /* Standard community-list. */
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#define COMMUNITY_LIST_EXPANDED 1 /* Expanded community-list. */
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#define EXTCOMMUNITY_LIST_STANDARD 2 /* Standard extcommunity-list. */
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#define EXTCOMMUNITY_LIST_EXPANDED 3 /* Expanded extcommunity-list. */
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#define LARGE_COMMUNITY_LIST_STANDARD 4 /* Standard Large community-list. */
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#define LARGE_COMMUNITY_LIST_EXPANDED 5 /* Expanded Large community-list. */
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/* Community-list. */
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struct community_list {
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/* Name of the community-list. */
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char *name;
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/* Stored hash value of name, to further speed up hash operations */
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uint32_t name_hash;
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/* String or number. */
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int sort;
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/* Link to upper list. */
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struct community_list_list *parent;
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/* Linked list for other community-list. */
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struct community_list *next;
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struct community_list *prev;
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/* Community-list entry in this community-list. */
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struct community_entry *head;
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struct community_entry *tail;
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};
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/* Each entry in community-list. */
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struct community_entry {
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struct community_entry *next;
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struct community_entry *prev;
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/* Permit or deny. */
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uint8_t direct;
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/* Standard or expanded. */
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uint8_t style;
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/* Any match. */
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uint8_t any;
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/* Community structure. */
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union {
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struct community *com;
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struct ecommunity *ecom;
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struct lcommunity *lcom;
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} u;
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/* Configuration string. */
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char *config;
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/* Expanded community-list regular expression. */
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regex_t *reg;
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};
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/* Linked list of community-list. */
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struct community_list_list {
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struct community_list *head;
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struct community_list *tail;
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};
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/* Master structure of community-list and extcommunity-list. */
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struct community_list_master {
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struct community_list_list num;
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struct community_list_list str;
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struct hash *hash;
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};
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/* Community-list handler. community_list_init() returns this
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structure as handler. */
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struct community_list_handler {
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/* Community-list. */
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struct community_list_master community_list;
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/* Exteded community-list. */
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struct community_list_master extcommunity_list;
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/* Large community-list. */
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struct community_list_master lcommunity_list;
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};
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/* Error code of community-list. */
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#define COMMUNITY_LIST_ERR_CANT_FIND_LIST -1
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#define COMMUNITY_LIST_ERR_MALFORMED_VAL -2
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#define COMMUNITY_LIST_ERR_STANDARD_CONFLICT -3
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#define COMMUNITY_LIST_ERR_EXPANDED_CONFLICT -4
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/* Handler. */
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extern struct community_list_handler *bgp_clist;
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/* Prototypes. */
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extern struct community_list_handler *community_list_init(void);
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extern void community_list_terminate(struct community_list_handler *);
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extern int community_list_set(struct community_list_handler *ch,
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const char *name, const char *str, int direct,
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int style);
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extern int community_list_unset(struct community_list_handler *ch,
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const char *name, const char *str, int direct,
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int style);
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extern int extcommunity_list_set(struct community_list_handler *ch,
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const char *name, const char *str, int direct,
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int style);
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extern int extcommunity_list_unset(struct community_list_handler *ch,
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const char *name, const char *str,
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int direct, int style);
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extern int lcommunity_list_set(struct community_list_handler *ch,
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const char *name, const char *str, int direct,
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int style);
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extern int lcommunity_list_unset(struct community_list_handler *ch,
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const char *name, const char *str, int direct,
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int style);
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extern struct community_list_master *
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community_list_master_lookup(struct community_list_handler *, int);
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extern struct community_list *
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community_list_lookup(struct community_list_handler *c, const char *name,
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uint32_t name_hash, int master);
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extern int community_list_match(struct community *, struct community_list *);
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extern int ecommunity_list_match(struct ecommunity *, struct community_list *);
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extern int lcommunity_list_match(struct lcommunity *, struct community_list *);
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extern int community_list_exact_match(struct community *,
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struct community_list *);
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extern struct community *community_list_match_delete(struct community *,
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struct community_list *);
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extern struct lcommunity *
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lcommunity_list_match_delete(struct lcommunity *lcom,
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struct community_list *list);
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static inline uint32_t bgp_clist_hash_key(char *name)
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{
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return jhash(name, strlen(name), 0xdeadbeaf);
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}
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#endif /* _QUAGGA_BGP_CLIST_H */
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