1 /* BGP Extended Communities Attribute.
2 Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
4 This file is part of GNU Zebra.
6 GNU Zebra is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 GNU Zebra is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Zebra; see the file COPYING. If not, write to the Free
18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21 #ifndef _QUAGGA_BGP_ECOMMUNITY_H
22 #define _QUAGGA_BGP_ECOMMUNITY_H
24 /* High-order octet of the Extended Communities type field. */
25 #define ECOMMUNITY_ENCODE_AS 0x00
26 #define ECOMMUNITY_ENCODE_IP 0x01
27 #define ECOMMUNITY_ENCODE_AS4 0x02
28 #define ECOMMUNITY_ENCODE_OPAQUE 0x03
30 /* Low-order octet of the Extended Communities type field. */
31 #define ECOMMUNITY_ROUTE_TARGET 0x02
32 #define ECOMMUNITY_SITE_ORIGIN 0x03
34 /* Low-order octet of the Extended Communities type field for OPAQUE types */
35 #define ECOMMUNITY_OPAQUE_SUBTYPE_ENCAP 0x0c
37 /* Extended communities attribute string format. */
38 #define ECOMMUNITY_FORMAT_ROUTE_MAP 0
39 #define ECOMMUNITY_FORMAT_COMMUNITY_LIST 1
40 #define ECOMMUNITY_FORMAT_DISPLAY 2
42 /* Extended Communities value is eight octet long. */
43 #define ECOMMUNITY_SIZE 8
45 /* Extended Communities type flag. */
46 #define ECOMMUNITY_FLAG_NON_TRANSITIVE 0x40
48 /* Extended Communities attribute. */
51 /* Reference counter. */
54 /* Size of Extended Communities attribute. */
57 /* Extended Communities value. */
60 /* Human readable format string. */
64 /* Extended community value is eight octet. */
67 char val[ECOMMUNITY_SIZE];
70 #define ecom_length(X) ((X)->size * ECOMMUNITY_SIZE)
72 extern void ecommunity_init (void);
73 extern void ecommunity_finish (void);
74 extern void ecommunity_free (struct ecommunity **);
75 extern struct ecommunity *ecommunity_parse (u_int8_t *, u_short);
76 extern struct ecommunity *ecommunity_dup (struct ecommunity *);
77 extern struct ecommunity *ecommunity_merge (struct ecommunity *, struct ecommunity *);
78 extern struct ecommunity *ecommunity_uniq_sort (struct ecommunity *);
79 extern struct ecommunity *ecommunity_intern (struct ecommunity *);
80 extern int ecommunity_cmp (const void *, const void *);
81 extern void ecommunity_unintern (struct ecommunity **);
82 extern unsigned int ecommunity_hash_make (void *);
83 extern struct ecommunity *ecommunity_str2com (const char *, int, int);
84 extern char *ecommunity_ecom2str (struct ecommunity *, int);
85 extern int ecommunity_match (const struct ecommunity *, const struct ecommunity *);
86 extern char *ecommunity_str (struct ecommunity *);
88 #endif /* _QUAGGA_BGP_ECOMMUNITY_H */