1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/* BGP Community list.
* Copyright (C) 1999 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 this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _QUAGGA_BGP_CLIST_H
#define _QUAGGA_BGP_CLIST_H
#include "jhash.h"
/* Master Community-list. */
#define COMMUNITY_LIST_MASTER 0
#define EXTCOMMUNITY_LIST_MASTER 1
#define LARGE_COMMUNITY_LIST_MASTER 2
/* Community-list deny and permit. */
#define COMMUNITY_DENY 0
#define COMMUNITY_PERMIT 1
/* Number and string based community-list name. */
#define COMMUNITY_LIST_STRING 0
#define COMMUNITY_LIST_NUMBER 1
#define COMMUNITY_SEQ_NUMBER_AUTO -1
/* Community-list entry types. */
#define COMMUNITY_LIST_STANDARD 0 /* Standard community-list. */
#define COMMUNITY_LIST_EXPANDED 1 /* Expanded community-list. */
#define EXTCOMMUNITY_LIST_STANDARD 2 /* Standard extcommunity-list. */
#define EXTCOMMUNITY_LIST_EXPANDED 3 /* Expanded extcommunity-list. */
#define LARGE_COMMUNITY_LIST_STANDARD 4 /* Standard Large community-list. */
#define LARGE_COMMUNITY_LIST_EXPANDED 5 /* Expanded Large community-list. */
/* Community-list. */
struct community_list {
/* Name of the community-list. */
char *name;
/* Stored hash value of name, to further speed up hash operations */
uint32_t name_hash;
/* String or number. */
int sort;
/* Link to upper list. */
struct community_list_list *parent;
/* Linked list for other community-list. */
struct community_list *next;
struct community_list *prev;
/* Community-list entry in this community-list. */
struct community_entry *head;
struct community_entry *tail;
};
/* Each entry in community-list. */
struct community_entry {
struct community_entry *next;
struct community_entry *prev;
/* Permit or deny. */
uint8_t direct;
/* Standard or expanded. */
uint8_t style;
/* Any match. */
bool any;
/* Sequence number. */
int64_t seq;
/* Community structure. */
union {
struct community *com;
struct ecommunity *ecom;
struct lcommunity *lcom;
} u;
/* Configuration string. */
char *config;
/* Expanded community-list regular expression. */
regex_t *reg;
};
/* Linked list of community-list. */
struct community_list_list {
struct community_list *head;
struct community_list *tail;
};
/* Master structure of community-list and extcommunity-list. */
struct community_list_master {
struct community_list_list num;
struct community_list_list str;
struct hash *hash;
};
/* Community-list handler. community_list_init() returns this
structure as handler. */
struct community_list_handler {
/* Community-list. */
struct community_list_master community_list;
/* Exteded community-list. */
struct community_list_master extcommunity_list;
/* Large community-list. */
struct community_list_master lcommunity_list;
};
/* Error code of community-list. */
#define COMMUNITY_LIST_ERR_CANT_FIND_LIST -1
#define COMMUNITY_LIST_ERR_MALFORMED_VAL -2
#define COMMUNITY_LIST_ERR_STANDARD_CONFLICT -3
#define COMMUNITY_LIST_ERR_EXPANDED_CONFLICT -4
/* Handler. */
extern struct community_list_handler *bgp_clist;
/* Prototypes. */
extern struct community_list_handler *community_list_init(void);
extern void community_list_terminate(struct community_list_handler *ch);
extern int community_list_set(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int community_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int extcommunity_list_set(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int extcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int lcommunity_list_set(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern bool lcommunity_list_valid(const char *community, int style);
extern int lcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern struct community_list_master *
community_list_master_lookup(struct community_list_handler *ch, int master);
extern struct community_list *
community_list_lookup(struct community_list_handler *c, const char *name,
uint32_t name_hash, int master);
extern bool community_list_match(struct community *com,
struct community_list *list);
extern bool ecommunity_list_match(struct ecommunity *ecom,
struct community_list *list);
extern bool lcommunity_list_match(struct lcommunity *lcom,
struct community_list *list);
extern bool community_list_exact_match(struct community *com,
struct community_list *list);
extern bool lcommunity_list_exact_match(struct lcommunity *lcom,
struct community_list *list);
extern struct community *
community_list_match_delete(struct community *com, struct community_list *list);
extern struct lcommunity *
lcommunity_list_match_delete(struct lcommunity *lcom,
struct community_list *list);
static inline uint32_t bgp_clist_hash_key(char *name)
{
return jhash(name, strlen(name), 0xdeadbeaf);
}
extern void bgp_community_list_command_completion_setup(void);
#endif /* _QUAGGA_BGP_CLIST_H */
|
