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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 #ifndef _QUAGGA_BGP_ASPATH_H
22 #define _QUAGGA_BGP_ASPATH_H
24 /* AS path segment type. */
27 #define AS_CONFED_SEQUENCE 3
28 #define AS_CONFED_SET 4
30 /* Private AS range defined in RFC2270. */
31 #define BGP_PRIVATE_AS_MIN 64512U
32 #define BGP_PRIVATE_AS_MAX 65535U
34 #define BGP_AS_MAX 65535U
36 /* AS path may be include some AsSegments. */
39 /* Reference count to this aspath. */
48 /* Confederation set/segment AS count. */
54 /* String expression of AS path. This string is used by vty output
55 and AS path regular expression match. */
59 #define ASPATH_STR_DEFAULT_LEN 32
62 extern void aspath_init (void);
63 extern struct aspath
*aspath_parse (caddr_t
, int);
64 extern struct aspath
*aspath_dup (struct aspath
*);
65 extern struct aspath
*aspath_aggregate (struct aspath
*, struct aspath
*);
66 extern struct aspath
*aspath_prepend (struct aspath
*, struct aspath
*);
67 extern struct aspath
*aspath_add_seq (struct aspath
*, as_t
);
68 extern struct aspath
*aspath_add_confed_seq (struct aspath
*, as_t
);
69 extern int aspath_cmp_left (struct aspath
*, struct aspath
*);
70 extern int aspath_cmp_left_confed (struct aspath
*, struct aspath
*);
71 extern struct aspath
*aspath_delete_confed_seq (struct aspath
*);
72 extern struct aspath
*aspath_empty (void);
73 extern struct aspath
*aspath_empty_get (void);
74 extern struct aspath
*aspath_str2aspath (const char *);
75 extern void aspath_free (struct aspath
*);
76 extern struct aspath
*aspath_intern (struct aspath
*);
77 extern void aspath_unintern (struct aspath
*);
78 extern const char *aspath_print (struct aspath
*);
79 extern void aspath_print_vty (struct vty
*, struct aspath
*);
80 extern void aspath_print_all_vty (struct vty
*);
81 extern unsigned int aspath_key_make (struct aspath
*);
82 extern int aspath_loop_check (struct aspath
*, as_t
);
83 extern int aspath_private_as_check (struct aspath
*);
84 extern int aspath_firstas_check (struct aspath
*, as_t
);
85 extern unsigned long aspath_count (void);
87 #endif /* _QUAGGA_BGP_ASPATH_H */