1/* Community attribute related functions.
2   Copyright (C) 1998 Kunihiro Ishiguro
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/* Communities attribute.  */
22struct community
23{
24  /* Reference count of communities value.  */
25  unsigned long refcnt;
26
27  /* Communities value size.  */
28  int size;
29
30  /* Communities value.  */
31  u_int32_t *val;
32
33  /* String of community attribute.  This sring is used by vty output
34     and expanded community-list for regular expression match.  */
35  char *str;
36};
37
38/* Well-known communities value.  */
39#define COMMUNITY_INTERNET              0x0
40#define COMMUNITY_NO_EXPORT             0xFFFFFF01
41#define COMMUNITY_NO_ADVERTISE          0xFFFFFF02
42#define COMMUNITY_NO_EXPORT_SUBCONFED   0xFFFFFF03
43#define COMMUNITY_LOCAL_AS              0xFFFFFF03
44
45/* Macros of community attribute.  */
46#define com_length(X)    ((X)->size * 4)
47#define com_lastval(X)   ((X)->val + (X)->size - 1)
48#define com_nthval(X,n)  ((X)->val + (n))
49
50/* Prototypes of communities attribute functions.  */
51void community_init ();
52void community_free (struct community *);
53struct community *community_uniq_sort (struct community *);
54struct community *community_parse (char *, u_short);
55struct community *community_intern (struct community *);
56void community_unintern (struct community *);
57char *community_str (struct community *);
58unsigned int community_hash_make (struct community *);
59struct community *community_str2com (char *);
60int community_match (struct community *, struct community *);
61int community_cmp (struct community *, struct community *);
62struct community *community_merge (struct community *, struct community *);
63struct community *community_delete (struct community *, struct community *);
64struct community *community_dup (struct community *);
65int community_include (struct community *, u_int32_t);
66void community_del_val (struct community *, u_int32_t *);
67unsigned long community_count ();
68struct hash *community_hash ();
69