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1 | /* Community attribute related functions. | |
2 | * Copyright (C) 1998 Kunihiro Ishiguro | |
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 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_COMMUNITY_H | |
22 | #define _QUAGGA_BGP_COMMUNITY_H | |
23 | ||
24 | #include "lib/json.h" | |
25 | #include "bgpd/bgp_route.h" | |
26 | ||
27 | /* Communities attribute. */ | |
28 | struct community { | |
29 | /* Reference count of communities value. */ | |
30 | unsigned long refcnt; | |
31 | ||
32 | /* Communities value size. */ | |
33 | int size; | |
34 | ||
35 | /* Communities value. */ | |
36 | uint32_t *val; | |
37 | ||
38 | /* Communities as a json object */ | |
39 | json_object *json; | |
40 | ||
41 | /* String of community attribute. This sring is used by vty output | |
42 | and expanded community-list for regular expression match. */ | |
43 | char *str; | |
44 | }; | |
45 | ||
46 | /* Well-known communities value. */ | |
47 | #define COMMUNITY_INTERNET 0x0 | |
48 | #define COMMUNITY_GSHUT 0xFFFF0000 | |
49 | #define COMMUNITY_ACCEPT_OWN 0xFFFF0001 | |
50 | #define COMMUNITY_ROUTE_FILTER_TRANSLATED_v4 0xFFFF0002 | |
51 | #define COMMUNITY_ROUTE_FILTER_v4 0xFFFF0003 | |
52 | #define COMMUNITY_ROUTE_FILTER_TRANSLATED_v6 0xFFFF0004 | |
53 | #define COMMUNITY_ROUTE_FILTER_v6 0xFFFF0005 | |
54 | #define COMMUNITY_LLGR_STALE 0xFFFF0006 | |
55 | #define COMMUNITY_NO_LLGR 0xFFFF0007 | |
56 | #define COMMUNITY_ACCEPT_OWN_NEXTHOP 0xFFFF0008 | |
57 | #define COMMUNITY_BLACKHOLE 0xFFFF029A | |
58 | #define COMMUNITY_NO_EXPORT 0xFFFFFF01 | |
59 | #define COMMUNITY_NO_ADVERTISE 0xFFFFFF02 | |
60 | #define COMMUNITY_NO_EXPORT_SUBCONFED 0xFFFFFF03 | |
61 | #define COMMUNITY_LOCAL_AS 0xFFFFFF03 | |
62 | #define COMMUNITY_NO_PEER 0xFFFFFF04 | |
63 | ||
64 | /* Macros of community attribute. */ | |
65 | #define com_length(X) ((X)->size * 4) | |
66 | #define com_lastval(X) ((X)->val + (X)->size - 1) | |
67 | #define com_nthval(X,n) ((X)->val + (n)) | |
68 | ||
69 | /* Prototypes of communities attribute functions. */ | |
70 | extern void community_init(void); | |
71 | extern void community_finish(void); | |
72 | extern void community_free(struct community **comm); | |
73 | extern struct community *community_uniq_sort(struct community *); | |
74 | extern struct community *community_parse(uint32_t *, unsigned short); | |
75 | extern struct community *community_intern(struct community *); | |
76 | extern void community_unintern(struct community **); | |
77 | extern char *community_str(struct community *, bool make_json); | |
78 | extern unsigned int community_hash_make(struct community *); | |
79 | extern struct community *community_str2com(const char *); | |
80 | extern int community_match(const struct community *, const struct community *); | |
81 | extern bool community_cmp(const struct community *c1, | |
82 | const struct community *c2); | |
83 | extern struct community *community_merge(struct community *, | |
84 | struct community *); | |
85 | extern struct community *community_delete(struct community *, | |
86 | struct community *); | |
87 | extern struct community *community_dup(struct community *); | |
88 | extern int community_include(struct community *, uint32_t); | |
89 | extern void community_del_val(struct community *, uint32_t *); | |
90 | extern unsigned long community_count(void); | |
91 | extern struct hash *community_hash(void); | |
92 | extern uint32_t community_val_get(struct community *com, int i); | |
93 | extern void bgp_compute_aggregate_community(struct bgp_aggregate *aggregate, | |
94 | struct community *community); | |
95 | extern void bgp_remove_community_from_aggregate(struct bgp_aggregate *aggregate, | |
96 | struct community *community); | |
97 | extern void bgp_aggr_community_remove(void *arg); | |
98 | ||
99 | #endif /* _QUAGGA_BGP_COMMUNITY_H */ |