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718e3744 | 1 | /* Route map function. |
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 | |
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 | */ | |
21 | ||
22 | #ifndef _ZEBRA_ROUTEMAP_H | |
23 | #define _ZEBRA_ROUTEMAP_H | |
24 | ||
24873f0c DS |
25 | #include "prefix.h" |
26 | ||
718e3744 | 27 | /* Route map's type. */ |
28 | enum route_map_type | |
29 | { | |
30 | RMAP_PERMIT, | |
31 | RMAP_DENY, | |
32 | RMAP_ANY | |
33 | }; | |
34 | ||
35 | typedef enum | |
36 | { | |
37 | RMAP_MATCH, | |
38 | RMAP_DENYMATCH, | |
39 | RMAP_NOMATCH, | |
40 | RMAP_ERROR, | |
41 | RMAP_OKAY | |
42 | } route_map_result_t; | |
43 | ||
44 | typedef enum | |
45 | { | |
46 | RMAP_RIP, | |
47 | RMAP_RIPNG, | |
48 | RMAP_OSPF, | |
49 | RMAP_OSPF6, | |
7514fb77 | 50 | RMAP_BGP, |
f3ccedaa CF |
51 | RMAP_ZEBRA, |
52 | RMAP_ISIS, | |
718e3744 | 53 | } route_map_object_t; |
54 | ||
55 | typedef enum | |
56 | { | |
57 | RMAP_EXIT, | |
58 | RMAP_GOTO, | |
59 | RMAP_NEXT | |
60 | } route_map_end_t; | |
61 | ||
62 | typedef enum | |
63 | { | |
64 | RMAP_EVENT_SET_ADDED, | |
65 | RMAP_EVENT_SET_DELETED, | |
66 | RMAP_EVENT_SET_REPLACED, | |
67 | RMAP_EVENT_MATCH_ADDED, | |
68 | RMAP_EVENT_MATCH_DELETED, | |
69 | RMAP_EVENT_MATCH_REPLACED, | |
70 | RMAP_EVENT_INDEX_ADDED, | |
518f0eb1 DS |
71 | RMAP_EVENT_INDEX_DELETED, |
72 | RMAP_EVENT_CALL_ADDED, /* call to another routemap added */ | |
73 | RMAP_EVENT_CALL_DELETED, | |
74 | RMAP_EVENT_PLIST_ADDED, | |
75 | RMAP_EVENT_PLIST_DELETED, | |
76 | RMAP_EVENT_CLIST_ADDED, | |
77 | RMAP_EVENT_CLIST_DELETED, | |
78 | RMAP_EVENT_ECLIST_ADDED, | |
79 | RMAP_EVENT_ECLIST_DELETED, | |
80 | RMAP_EVENT_ASLIST_ADDED, | |
81 | RMAP_EVENT_ASLIST_DELETED, | |
82 | RMAP_EVENT_FILTER_ADDED, | |
83 | RMAP_EVENT_FILTER_DELETED, | |
718e3744 | 84 | } route_map_event_t; |
85 | ||
fee0f4c6 | 86 | /* Depth limit in RMAP recursion using RMAP_CALL. */ |
87 | #define RMAP_RECURSION_LIMIT 10 | |
88 | ||
718e3744 | 89 | /* Route map rule structure for matching and setting. */ |
90 | struct route_map_rule_cmd | |
91 | { | |
92 | /* Route map rule name (e.g. as-path, metric) */ | |
27a43a81 | 93 | const char *str; |
718e3744 | 94 | |
95 | /* Function for value set or match. */ | |
96 | route_map_result_t (*func_apply)(void *, struct prefix *, | |
97 | route_map_object_t, void *); | |
98 | ||
99 | /* Compile argument and return result as void *. */ | |
c9eca01b | 100 | void *(*func_compile)(const char *); |
718e3744 | 101 | |
102 | /* Free allocated value by func_compile (). */ | |
103 | void (*func_free)(void *); | |
104 | }; | |
105 | ||
106 | /* Route map apply error. */ | |
107 | enum | |
108 | { | |
109 | /* Route map rule is missing. */ | |
110 | RMAP_RULE_MISSING = 1, | |
111 | ||
112 | /* Route map rule can't compile */ | |
113 | RMAP_COMPILE_ERROR | |
114 | }; | |
115 | ||
116 | /* Route map rule list. */ | |
117 | struct route_map_rule_list | |
118 | { | |
119 | struct route_map_rule *head; | |
120 | struct route_map_rule *tail; | |
121 | }; | |
122 | ||
123 | /* Route map index structure. */ | |
124 | struct route_map_index | |
125 | { | |
126 | struct route_map *map; | |
4a8164e5 | 127 | char *description; |
718e3744 | 128 | |
129 | /* Preference of this route map rule. */ | |
130 | int pref; | |
131 | ||
132 | /* Route map type permit or deny. */ | |
133 | enum route_map_type type; | |
134 | ||
135 | /* Do we follow old rules, or hop forward? */ | |
136 | route_map_end_t exitpolicy; | |
137 | ||
138 | /* If we're using "GOTO", to where do we go? */ | |
139 | int nextpref; | |
140 | ||
fee0f4c6 | 141 | /* If we're using "CALL", to which route-map do ew go? */ |
142 | char *nextrm; | |
143 | ||
718e3744 | 144 | /* Matching rule list. */ |
145 | struct route_map_rule_list match_list; | |
146 | struct route_map_rule_list set_list; | |
147 | ||
148 | /* Make linked list. */ | |
149 | struct route_map_index *next; | |
150 | struct route_map_index *prev; | |
151 | }; | |
152 | ||
153 | /* Route map list structure. */ | |
154 | struct route_map | |
155 | { | |
156 | /* Name of route map. */ | |
157 | char *name; | |
158 | ||
159 | /* Route map's rule. */ | |
160 | struct route_map_index *head; | |
161 | struct route_map_index *tail; | |
162 | ||
163 | /* Make linked list. */ | |
164 | struct route_map *next; | |
165 | struct route_map *prev; | |
518f0eb1 DS |
166 | |
167 | /* Maintain update info */ | |
168 | int to_be_processed; /* True if modification isn't acted on yet */ | |
169 | int deleted; /* If 1, then this node will be deleted */ | |
718e3744 | 170 | }; |
171 | ||
172 | /* Prototypes. */ | |
8cc4198f | 173 | extern void route_map_init (void); |
174 | extern void route_map_init_vty (void); | |
228da428 | 175 | extern void route_map_finish (void); |
718e3744 | 176 | |
177 | /* Add match statement to route map. */ | |
8cc4198f | 178 | extern int route_map_add_match (struct route_map_index *index, |
179 | const char *match_name, | |
180 | const char *match_arg); | |
718e3744 | 181 | |
182 | /* Delete specified route match rule. */ | |
8cc4198f | 183 | extern int route_map_delete_match (struct route_map_index *index, |
184 | const char *match_name, | |
185 | const char *match_arg); | |
718e3744 | 186 | |
518f0eb1 DS |
187 | extern const char *route_map_get_match_arg (struct route_map_index *index, |
188 | const char *match_name); | |
189 | ||
718e3744 | 190 | /* Add route-map set statement to the route map. */ |
8cc4198f | 191 | extern int route_map_add_set (struct route_map_index *index, |
192 | const char *set_name, | |
193 | const char *set_arg); | |
718e3744 | 194 | |
195 | /* Delete route map set rule. */ | |
8cc4198f | 196 | extern int route_map_delete_set (struct route_map_index *index, |
197 | const char *set_name, | |
198 | const char *set_arg); | |
718e3744 | 199 | |
200 | /* Install rule command to the match list. */ | |
8cc4198f | 201 | extern void route_map_install_match (struct route_map_rule_cmd *cmd); |
718e3744 | 202 | |
203 | /* Install rule command to the set list. */ | |
8cc4198f | 204 | extern void route_map_install_set (struct route_map_rule_cmd *cmd); |
718e3744 | 205 | |
206 | /* Lookup route map by name. */ | |
8cc4198f | 207 | extern struct route_map * route_map_lookup_by_name (const char *name); |
718e3744 | 208 | |
209 | /* Apply route map to the object. */ | |
8cc4198f | 210 | extern route_map_result_t route_map_apply (struct route_map *map, |
211 | struct prefix *, | |
212 | route_map_object_t object_type, | |
213 | void *object); | |
214 | ||
215 | extern void route_map_add_hook (void (*func) (const char *)); | |
216 | extern void route_map_delete_hook (void (*func) (const char *)); | |
518f0eb1 DS |
217 | extern void route_map_event_hook (void (*func) (route_map_event_t, |
218 | const char *)); | |
219 | extern int route_map_mark_updated (const char *name, int deleted); | |
220 | extern int route_map_clear_updated (struct route_map *rmap); | |
5fe9f963 | 221 | extern void route_map_walk_update_list (int (*update_fn) (char *name)); |
518f0eb1 DS |
222 | extern void route_map_upd8_dependency (route_map_event_t type, const char *arg, |
223 | const char *rmap_name); | |
224 | extern void route_map_notify_dependencies (const char *affected_name, | |
225 | route_map_event_t event); | |
718e3744 | 226 | |
227 | #endif /* _ZEBRA_ROUTEMAP_H */ |