1/* BGP Extended Communities Attribute. 2 Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org> 3 4This file is part of GNU Zebra. 5 6GNU Zebra is free software; you can redistribute it and/or modify it 7under the terms of the GNU General Public License as published by the 8Free Software Foundation; either version 2, or (at your option) any 9later version. 10 11GNU Zebra is distributed in the hope that it will be useful, but 12WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along with GNU Zebra; see the file COPYING. If not, write to the Free 18Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 1902111-1307, USA. */ 20 21/* High-order octet of the Extended Communities type field. */ 22#define ECOMMUNITY_ENCODE_AS 0x00 23#define ECOMMUNITY_ENCODE_IP 0x01 24 25/* Low-order octet of the Extended Communityes type field. */ 26#define ECOMMUNITY_ROUTE_TARGET 0x02 27#define ECOMMUNITY_SITE_ORIGIN 0x03 28 29/* Extended communities attribute string format. */ 30#define ECOMMUNITY_FORMAT_ROUTE_MAP 0 31#define ECOMMUNITY_FORMAT_COMMUNITY_LIST 1 32#define ECOMMUNITY_FORMAT_DISPLAY 2 33 34/* BGP routing distinguisher size. */ 35#ifndef BGP_RD_SIZE 36#define BGP_RD_SIZE 8 37#endif /* BGP_RD_SIZE */ 38 39/* Extended Communities attribute. */ 40struct ecommunity 41{ 42 unsigned long refcnt; 43 int size; 44 u_char *val; 45 char *str; 46}; 47 48#define ecom_length(X) ((X)->size * 8) 49 50void ecommunity_init (void); 51void ecommunity_free (struct ecommunity *); 52struct ecommunity *ecommunity_new (void); 53struct ecommunity *ecommunity_parse (char *, u_short); 54struct ecommunity *ecommunity_dup (struct ecommunity *); 55struct ecommunity *ecommunity_merge (struct ecommunity *, struct ecommunity *); 56struct ecommunity *ecommunity_intern (struct ecommunity *); 57int ecommunity_cmp (struct ecommunity *, struct ecommunity *); 58void ecommunity_unintern (struct ecommunity *); 59unsigned int ecommunity_hash_make (struct ecommunity *); 60 61void ecommunity_rd2com (struct bgp_rd *, u_char); 62struct ecommunity *ecommunity_str2com (char *, int, int); 63void ecommunity_vty_out (struct vty *, struct ecommunity *); 64char *ecommunity_ecom2str (struct ecommunity *, int); 65