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718e3744 | 1 | /* BGP Extended Communities Attribute. |
2 | Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org> | |
3 | ||
4 | This file is part of GNU Zebra. | |
5 | ||
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 | |
9 | later version. | |
10 | ||
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. | |
15 | ||
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 | |
19 | 02111-1307, USA. */ | |
20 | ||
00d252cb | 21 | #ifndef _QUAGGA_BGP_ECOMMUNITY_H |
22 | #define _QUAGGA_BGP_ECOMMUNITY_H | |
23 | ||
718e3744 | 24 | /* High-order octet of the Extended Communities type field. */ |
25 | #define ECOMMUNITY_ENCODE_AS 0x00 | |
26 | #define ECOMMUNITY_ENCODE_IP 0x01 | |
0b2aa3a0 | 27 | #define ECOMMUNITY_ENCODE_AS4 0x02 |
718e3744 | 28 | |
29 | /* Low-order octet of the Extended Communityes type field. */ | |
30 | #define ECOMMUNITY_ROUTE_TARGET 0x02 | |
31 | #define ECOMMUNITY_SITE_ORIGIN 0x03 | |
32 | ||
33 | /* Extended communities attribute string format. */ | |
34 | #define ECOMMUNITY_FORMAT_ROUTE_MAP 0 | |
35 | #define ECOMMUNITY_FORMAT_COMMUNITY_LIST 1 | |
36 | #define ECOMMUNITY_FORMAT_DISPLAY 2 | |
37 | ||
38 | /* Extended Communities value is eight octet long. */ | |
39 | #define ECOMMUNITY_SIZE 8 | |
40 | ||
4372df71 | 41 | /* Extended Communities type flag. */ |
42 | #define ECOMMUNITY_FLAG_NON_TRANSITIVE 0x40 | |
43 | ||
718e3744 | 44 | /* Extended Communities attribute. */ |
45 | struct ecommunity | |
46 | { | |
47 | /* Reference counter. */ | |
48 | unsigned long refcnt; | |
49 | ||
50 | /* Size of Extended Communities attribute. */ | |
51 | int size; | |
52 | ||
53 | /* Extended Communities value. */ | |
5228ad27 | 54 | u_int8_t *val; |
718e3744 | 55 | |
56 | /* Human readable format string. */ | |
57 | char *str; | |
58 | }; | |
59 | ||
60 | /* Extended community value is eight octet. */ | |
61 | struct ecommunity_val | |
62 | { | |
63 | char val[ECOMMUNITY_SIZE]; | |
64 | }; | |
65 | ||
66 | #define ecom_length(X) ((X)->size * ECOMMUNITY_SIZE) | |
67 | ||
94f2b392 | 68 | extern void ecommunity_init (void); |
228da428 | 69 | extern void ecommunity_finish (void); |
94f2b392 | 70 | extern void ecommunity_free (struct ecommunity *); |
94f2b392 | 71 | extern struct ecommunity *ecommunity_parse (u_int8_t *, u_short); |
72 | extern struct ecommunity *ecommunity_dup (struct ecommunity *); | |
73 | extern struct ecommunity *ecommunity_merge (struct ecommunity *, struct ecommunity *); | |
74 | extern struct ecommunity *ecommunity_intern (struct ecommunity *); | |
ffe11cfb | 75 | extern int ecommunity_cmp (const void *, const void *); |
94f2b392 | 76 | extern void ecommunity_unintern (struct ecommunity *); |
0b2aa3a0 | 77 | extern unsigned int ecommunity_hash_make (void *); |
94f2b392 | 78 | extern struct ecommunity *ecommunity_str2com (const char *, int, int); |
79 | extern char *ecommunity_ecom2str (struct ecommunity *, int); | |
80 | extern int ecommunity_match (const struct ecommunity *, const struct ecommunity *); | |
81 | extern char *ecommunity_str (struct ecommunity *); | |
00d252cb | 82 | |
83 | #endif /* _QUAGGA_BGP_ECOMMUNITY_H */ |