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/* BGP Extended Communities Attribute.
Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
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_ECOMMUNITY_H
#define _QUAGGA_BGP_ECOMMUNITY_H
/* High-order octet of the Extended Communities type field. */
#define ECOMMUNITY_ENCODE_AS 0x00
#define ECOMMUNITY_ENCODE_IP 0x01
#define ECOMMUNITY_ENCODE_AS4 0x02
/* Low-order octet of the Extended Communityes type field. */
#define ECOMMUNITY_ROUTE_TARGET 0x02
#define ECOMMUNITY_SITE_ORIGIN 0x03
/* Extended communities attribute string format. */
#define ECOMMUNITY_FORMAT_ROUTE_MAP 0
#define ECOMMUNITY_FORMAT_COMMUNITY_LIST 1
#define ECOMMUNITY_FORMAT_DISPLAY 2
/* Extended Communities value is eight octet long. */
#define ECOMMUNITY_SIZE 8
/* Extended Communities type flag. */
#define ECOMMUNITY_FLAG_NON_TRANSITIVE 0x40
/* Extended Communities attribute. */
struct ecommunity
{
/* Reference counter. */
unsigned long refcnt;
/* Size of Extended Communities attribute. */
int size;
/* Extended Communities value. */
u_int8_t *val;
/* Human readable format string. */
char *str;
};
/* Extended community value is eight octet. */
struct ecommunity_val
{
char val[ECOMMUNITY_SIZE];
};
#define ecom_length(X) ((X)->size * ECOMMUNITY_SIZE)
extern void ecommunity_init (void);
extern void ecommunity_finish (void);
extern void ecommunity_free (struct ecommunity **);
extern struct ecommunity *ecommunity_parse (u_int8_t *, u_short);
extern struct ecommunity *ecommunity_dup (struct ecommunity *);
extern struct ecommunity *ecommunity_merge (struct ecommunity *, struct ecommunity *);
extern struct ecommunity *ecommunity_intern (struct ecommunity *);
extern int ecommunity_cmp (const void *, const void *);
extern void ecommunity_unintern (struct ecommunity **);
extern unsigned int ecommunity_hash_make (void *);
extern struct ecommunity *ecommunity_str2com (const char *, int, int);
extern char *ecommunity_ecom2str (struct ecommunity *, int);
extern int ecommunity_match (const struct ecommunity *, const struct ecommunity *);
extern char *ecommunity_str (struct ecommunity *);
#endif /* _QUAGGA_BGP_ECOMMUNITY_H */
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