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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 | ||
25 | /* Route map's type. */ | |
26 | enum route_map_type | |
27 | { | |
28 | RMAP_PERMIT, | |
29 | RMAP_DENY, | |
30 | RMAP_ANY | |
31 | }; | |
32 | ||
33 | typedef enum | |
34 | { | |
35 | RMAP_MATCH, | |
36 | RMAP_DENYMATCH, | |
37 | RMAP_NOMATCH, | |
38 | RMAP_ERROR, | |
39 | RMAP_OKAY | |
40 | } route_map_result_t; | |
41 | ||
42 | typedef enum | |
43 | { | |
44 | RMAP_RIP, | |
45 | RMAP_RIPNG, | |
46 | RMAP_OSPF, | |
47 | RMAP_OSPF6, | |
48 | RMAP_BGP | |
49 | } route_map_object_t; | |
50 | ||
51 | typedef enum | |
52 | { | |
53 | RMAP_EXIT, | |
54 | RMAP_GOTO, | |
55 | RMAP_NEXT | |
56 | } route_map_end_t; | |
57 | ||
58 | typedef enum | |
59 | { | |
60 | RMAP_EVENT_SET_ADDED, | |
61 | RMAP_EVENT_SET_DELETED, | |
62 | RMAP_EVENT_SET_REPLACED, | |
63 | RMAP_EVENT_MATCH_ADDED, | |
64 | RMAP_EVENT_MATCH_DELETED, | |
65 | RMAP_EVENT_MATCH_REPLACED, | |
66 | RMAP_EVENT_INDEX_ADDED, | |
67 | RMAP_EVENT_INDEX_DELETED | |
68 | } route_map_event_t; | |
69 | ||
fee0f4c6 | 70 | /* Depth limit in RMAP recursion using RMAP_CALL. */ |
71 | #define RMAP_RECURSION_LIMIT 10 | |
72 | ||
718e3744 | 73 | /* Route map rule structure for matching and setting. */ |
74 | struct route_map_rule_cmd | |
75 | { | |
76 | /* Route map rule name (e.g. as-path, metric) */ | |
27a43a81 | 77 | const char *str; |
718e3744 | 78 | |
79 | /* Function for value set or match. */ | |
80 | route_map_result_t (*func_apply)(void *, struct prefix *, | |
81 | route_map_object_t, void *); | |
82 | ||
83 | /* Compile argument and return result as void *. */ | |
84 | void *(*func_compile)(char *); | |
85 | ||
86 | /* Free allocated value by func_compile (). */ | |
87 | void (*func_free)(void *); | |
88 | }; | |
89 | ||
90 | /* Route map apply error. */ | |
91 | enum | |
92 | { | |
93 | /* Route map rule is missing. */ | |
94 | RMAP_RULE_MISSING = 1, | |
95 | ||
96 | /* Route map rule can't compile */ | |
97 | RMAP_COMPILE_ERROR | |
98 | }; | |
99 | ||
100 | /* Route map rule list. */ | |
101 | struct route_map_rule_list | |
102 | { | |
103 | struct route_map_rule *head; | |
104 | struct route_map_rule *tail; | |
105 | }; | |
106 | ||
107 | /* Route map index structure. */ | |
108 | struct route_map_index | |
109 | { | |
110 | struct route_map *map; | |
111 | ||
112 | /* Preference of this route map rule. */ | |
113 | int pref; | |
114 | ||
115 | /* Route map type permit or deny. */ | |
116 | enum route_map_type type; | |
117 | ||
118 | /* Do we follow old rules, or hop forward? */ | |
119 | route_map_end_t exitpolicy; | |
120 | ||
121 | /* If we're using "GOTO", to where do we go? */ | |
122 | int nextpref; | |
123 | ||
fee0f4c6 | 124 | /* If we're using "CALL", to which route-map do ew go? */ |
125 | char *nextrm; | |
126 | ||
718e3744 | 127 | /* Matching rule list. */ |
128 | struct route_map_rule_list match_list; | |
129 | struct route_map_rule_list set_list; | |
130 | ||
131 | /* Make linked list. */ | |
132 | struct route_map_index *next; | |
133 | struct route_map_index *prev; | |
134 | }; | |
135 | ||
136 | /* Route map list structure. */ | |
137 | struct route_map | |
138 | { | |
139 | /* Name of route map. */ | |
140 | char *name; | |
141 | ||
142 | /* Route map's rule. */ | |
143 | struct route_map_index *head; | |
144 | struct route_map_index *tail; | |
145 | ||
146 | /* Make linked list. */ | |
147 | struct route_map *next; | |
148 | struct route_map *prev; | |
149 | }; | |
150 | ||
151 | /* Prototypes. */ | |
152 | void route_map_init (); | |
153 | void route_map_init_vty (); | |
154 | ||
155 | /* Add match statement to route map. */ | |
156 | int | |
157 | route_map_add_match (struct route_map_index *index, | |
27a43a81 | 158 | const char *match_name, |
718e3744 | 159 | char *match_arg); |
160 | ||
161 | /* Delete specified route match rule. */ | |
162 | int | |
163 | route_map_delete_match (struct route_map_index *index, | |
27a43a81 | 164 | const char *match_name, |
718e3744 | 165 | char *match_arg); |
166 | ||
167 | /* Add route-map set statement to the route map. */ | |
168 | int | |
169 | route_map_add_set (struct route_map_index *index, | |
27a43a81 | 170 | const char *set_name, |
718e3744 | 171 | char *set_arg); |
172 | ||
173 | /* Delete route map set rule. */ | |
174 | int | |
27a43a81 | 175 | route_map_delete_set (struct route_map_index *index, const char *set_name, |
718e3744 | 176 | char *set_arg); |
177 | ||
178 | /* Install rule command to the match list. */ | |
179 | void | |
180 | route_map_install_match (struct route_map_rule_cmd *cmd); | |
181 | ||
182 | /* Install rule command to the set list. */ | |
183 | void | |
184 | route_map_install_set (struct route_map_rule_cmd *cmd); | |
185 | ||
186 | /* Lookup route map by name. */ | |
187 | struct route_map * | |
9035efaa | 188 | route_map_lookup_by_name (const char *name); |
718e3744 | 189 | |
190 | /* Apply route map to the object. */ | |
191 | route_map_result_t | |
192 | route_map_apply (struct route_map *map, struct prefix *, | |
193 | route_map_object_t object_type, void *object); | |
194 | ||
9035efaa | 195 | void route_map_add_hook (void (*func) (const char *)); |
196 | void route_map_delete_hook (void (*func) (const char *)); | |
197 | void route_map_event_hook (void (*func) (route_map_event_t, const char *)); | |
718e3744 | 198 | |
199 | ||
200 | #endif /* _ZEBRA_ROUTEMAP_H */ |