bgp_aspath.h
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上传日期:2009-11-15
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- /* AS path related definitions.
- Copyright (C) 1997, 98, 99 Kunihiro Ishiguro
- This file is part of GNU Zebra.
- GNU Zebra is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
- GNU Zebra is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNU Zebra; see the file COPYING. If not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
- /* AS path segment type. */
- #define AS_SET 1
- #define AS_SEQUENCE 2
- #define AS_CONFED_SEQUENCE 3
- #define AS_CONFED_SET 4
- /* Private AS range defined in RFC2270. */
- #define BGP_PRIVATE_AS_MIN 64512
- #define BGP_PRIVATE_AS_MAX 65535
- /* AS path may be include some AsSegments. */
- struct aspath
- {
- /* Reference count to this aspath. */
- unsigned long refcnt;
- /* Rawdata length. */
- int length;
- /* AS count. */
- int count;
- /* Rawdata. */
- caddr_t data;
- /* String expression of AS path. This string is used by vty output
- and AS path regular expression match. */
- char *str;
- };
- #define ASPATH_STR_DEFAULT_LEN 32
- /* Prototypes. */
- void aspath_init ();
- struct aspath *aspath_parse ();
- struct aspath *aspath_dup (struct aspath *);
- struct aspath *aspath_aggregate (struct aspath *, struct aspath *);
- struct aspath *aspath_prepend (struct aspath *, struct aspath *);
- struct aspath *aspath_add_seq (struct aspath *, as_t);
- struct aspath *aspath_add_confed_seq (struct aspath *, as_t);
- int aspath_cmp_left (struct aspath *, struct aspath *);
- int aspath_cmp_left_confed (struct aspath *, struct aspath *);
- struct aspath *aspath_delete_confed_seq (struct aspath *);
- struct aspath *aspath_empty ();
- struct aspath *aspath_empty_get ();
- struct aspath *aspath_str2aspath (char *);
- void aspath_free (struct aspath *);
- struct aspath *aspath_intern (struct aspath *);
- void aspath_unintern (struct aspath *);
- const char *aspath_print (struct aspath *);
- void aspath_print_vty (struct vty *, struct aspath *);
- void aspath_print_all_vty (struct vty *);
- unsigned int aspath_key_make (struct aspath *);
- int aspath_loop_check (struct aspath *, as_t);
- int aspath_private_as_check (struct aspath *);
- int aspath_firstas_check (struct aspath *, as_t);
- unsigned long aspath_count ();