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1 | /* BGP Large Communities Attribute. | |
2 | * | |
3 | * Copyright (C) 2016 Keyur Patel <keyur@arrcus.com> | |
4 | * | |
5 | * This file is part of FreeRangeRouting (FRR). | |
6 | * | |
7 | * FRR is free software; you can redistribute it and/or modify it under the | |
8 | * terms of the GNU General Public License as published by the Free Software | |
9 | * Foundation; either version 2, or (at your option) any later version. | |
10 | * | |
11 | * FRR is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
13 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more | |
14 | * details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef _QUAGGA_BGP_LCOMMUNITY_H | |
22 | #define _QUAGGA_BGP_LCOMMUNITY_H | |
23 | ||
24 | /* Extended communities attribute string format. */ | |
25 | #define LCOMMUNITY_FORMAT_ROUTE_MAP 0 | |
26 | #define LCOMMUNITY_FORMAT_COMMUNITY_LIST 1 | |
27 | #define LCOMMUNITY_FORMAT_DISPLAY 2 | |
28 | ||
29 | /* Large Communities value is twelve octets long. */ | |
30 | #define LCOMMUNITY_SIZE 12 | |
31 | ||
32 | /* Large Communities attribute. */ | |
33 | struct lcommunity { | |
34 | /* Reference counter. */ | |
35 | unsigned long refcnt; | |
36 | ||
37 | /* Size of Extended Communities attribute. */ | |
38 | int size; | |
39 | ||
40 | /* Large Communities value. */ | |
41 | u_int8_t *val; | |
42 | ||
43 | /* Human readable format string. */ | |
44 | char *str; | |
45 | }; | |
46 | ||
47 | /* Large community value is 12 octets. */ | |
48 | struct lcommunity_val { | |
49 | char val[LCOMMUNITY_SIZE]; | |
50 | }; | |
51 | ||
52 | #define lcom_length(X) ((X)->size * LCOMMUNITY_SIZE) | |
53 | ||
54 | extern void lcommunity_init(void); | |
55 | extern void lcommunity_finish(void); | |
56 | extern void lcommunity_free(struct lcommunity **); | |
57 | extern struct lcommunity *lcommunity_parse(u_int8_t *, u_short); | |
58 | extern struct lcommunity *lcommunity_dup(struct lcommunity *); | |
59 | extern struct lcommunity *lcommunity_merge(struct lcommunity *, | |
60 | struct lcommunity *); | |
61 | extern struct lcommunity *lcommunity_uniq_sort(struct lcommunity *); | |
62 | extern struct lcommunity *lcommunity_intern(struct lcommunity *); | |
63 | extern int lcommunity_cmp(const void *, const void *); | |
64 | extern void lcommunity_unintern(struct lcommunity **); | |
65 | extern unsigned int lcommunity_hash_make(void *); | |
66 | extern struct hash *lcommunity_hash(void); | |
67 | extern struct lcommunity *lcommunity_str2com(const char *); | |
68 | extern char *lcommunity_lcom2str(struct lcommunity *, int); | |
69 | extern int lcommunity_match(const struct lcommunity *, | |
70 | const struct lcommunity *); | |
71 | extern char *lcommunity_str(struct lcommunity *); | |
72 | extern int lcommunity_include(struct lcommunity *lcom, u_char *ptr); | |
73 | extern void lcommunity_del_val(struct lcommunity *lcom, u_char *ptr); | |
74 | #endif /* _QUAGGA_BGP_LCOMMUNITY_H */ |