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1 /* AS path related definitions.
2 Copyright (C) 1997, 98, 99 Kunihiro Ishiguro
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 /* AS path segment type. */
24 #define AS_CONFED_SEQUENCE 3
25 #define AS_CONFED_SET 4
27 /* Private AS range defined in RFC2270. */
28 #define BGP_PRIVATE_AS_MIN 64512U
29 #define BGP_PRIVATE_AS_MAX 65535U
31 #define BGP_AS_MAX 65535U
33 /* AS path may be include some AsSegments. */
36 /* Reference count to this aspath. */
48 /* String expression of AS path. This string is used by vty output
49 and AS path regular expression match. */
53 #define ASPATH_STR_DEFAULT_LEN 32
57 struct aspath
*aspath_parse ();
58 struct aspath
*aspath_dup (struct aspath
*);
59 struct aspath
*aspath_aggregate (struct aspath
*, struct aspath
*);
60 struct aspath
*aspath_prepend (struct aspath
*, struct aspath
*);
61 struct aspath
*aspath_add_seq (struct aspath
*, as_t
);
62 struct aspath
*aspath_add_confed_seq (struct aspath
*, as_t
);
63 int aspath_cmp_left (struct aspath
*, struct aspath
*);
64 int aspath_cmp_left_confed (struct aspath
*, struct aspath
*);
65 struct aspath
*aspath_delete_confed_seq (struct aspath
*);
66 struct aspath
*aspath_empty ();
67 struct aspath
*aspath_empty_get ();
68 struct aspath
*aspath_str2aspath (const char *);
69 void aspath_free (struct aspath
*);
70 struct aspath
*aspath_intern (struct aspath
*);
71 void aspath_unintern (struct aspath
*);
72 const char *aspath_print (struct aspath
*);
73 void aspath_print_vty (struct vty
*, struct aspath
*);
74 void aspath_print_all_vty (struct vty
*);
75 unsigned int aspath_key_make (struct aspath
*);
76 int aspath_loop_check (struct aspath
*, as_t
);
77 int aspath_private_as_check (struct aspath
*);
78 int aspath_firstas_check (struct aspath
*, as_t
);
79 unsigned long aspath_count ();