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718e3744 | 1 | /* route-map for interface. |
2 | * Copyright (C) 1999 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 | #include <zebra.h> | |
23 | ||
24 | #include "hash.h" | |
25 | #include "command.h" | |
26 | #include "memory.h" | |
27 | #include "if.h" | |
41ce926c | 28 | #include "ripng_ifrmap.h" |
718e3744 | 29 | |
30 | struct hash *ifrmaphash; | |
31 | ||
32 | /* Hook functions. */ | |
33 | void (*if_rmap_add_hook) (struct if_rmap *) = NULL; | |
34 | void (*if_rmap_delete_hook) (struct if_rmap *) = NULL; | |
35 | \f | |
36 | struct if_rmap * | |
37 | if_rmap_new () | |
38 | { | |
39 | struct if_rmap *new; | |
40 | ||
41 | new = XCALLOC (MTYPE_IF_RMAP, sizeof (struct if_rmap)); | |
42 | ||
43 | return new; | |
44 | } | |
45 | ||
46 | void | |
47 | if_rmap_free (struct if_rmap *if_rmap) | |
48 | { | |
49 | if (if_rmap->ifname) | |
50 | free (if_rmap->ifname); | |
51 | ||
52 | if (if_rmap->routemap[IF_RMAP_IN]) | |
53 | free (if_rmap->routemap[IF_RMAP_IN]); | |
54 | if (if_rmap->routemap[IF_RMAP_OUT]) | |
55 | free (if_rmap->routemap[IF_RMAP_OUT]); | |
56 | ||
57 | XFREE (MTYPE_IF_RMAP, if_rmap); | |
58 | } | |
59 | ||
60 | struct if_rmap * | |
61 | if_rmap_lookup (char *ifname) | |
62 | { | |
63 | struct if_rmap key; | |
64 | struct if_rmap *if_rmap; | |
65 | ||
66 | key.ifname = ifname; | |
67 | ||
68 | if_rmap = hash_lookup (ifrmaphash, &key); | |
69 | ||
70 | return if_rmap; | |
71 | } | |
72 | ||
73 | void | |
74 | if_rmap_hook_add (void (*func) (struct if_rmap *)) | |
75 | { | |
76 | if_rmap_add_hook = func; | |
77 | } | |
78 | ||
79 | void | |
80 | if_rmap_hook_delete (void (*func) (struct if_rmap *)) | |
81 | { | |
82 | if_rmap_delete_hook = func; | |
83 | } | |
84 | ||
85 | void * | |
86 | if_rmap_hash_alloc (struct if_rmap *arg) | |
87 | { | |
88 | struct if_rmap *if_rmap; | |
89 | ||
90 | if_rmap = if_rmap_new (); | |
91 | if_rmap->ifname = strdup (arg->ifname); | |
92 | ||
93 | return if_rmap; | |
94 | } | |
95 | ||
96 | struct if_rmap * | |
97 | if_rmap_get (char *ifname) | |
98 | { | |
99 | struct if_rmap key; | |
100 | ||
101 | key.ifname = ifname; | |
102 | ||
103 | return (struct if_rmap *) hash_get (ifrmaphash, &key, if_rmap_hash_alloc); | |
104 | } | |
105 | ||
106 | unsigned int | |
107 | if_rmap_hash_make (struct if_rmap *if_rmap) | |
108 | { | |
109 | unsigned int key; | |
110 | int i; | |
111 | ||
112 | key = 0; | |
113 | for (i = 0; i < strlen (if_rmap->ifname); i++) | |
114 | key += if_rmap->ifname[i]; | |
115 | ||
116 | return key; | |
117 | } | |
118 | ||
119 | int | |
120 | if_rmap_hash_cmp (struct if_rmap *if_rmap1, struct if_rmap *if_rmap2) | |
121 | { | |
122 | if (strcmp (if_rmap1->ifname, if_rmap2->ifname) == 0) | |
123 | return 1; | |
124 | return 0; | |
125 | } | |
126 | \f | |
127 | struct if_rmap * | |
128 | if_rmap_set (char *ifname, enum if_rmap_type type, char *routemap_name) | |
129 | { | |
130 | struct if_rmap *if_rmap; | |
131 | ||
132 | if_rmap = if_rmap_get (ifname); | |
133 | ||
134 | if (type == IF_RMAP_IN) | |
135 | { | |
136 | if (if_rmap->routemap[IF_RMAP_IN]) | |
137 | free (if_rmap->routemap[IF_RMAP_IN]); | |
138 | if_rmap->routemap[IF_RMAP_IN] = strdup (routemap_name); | |
139 | } | |
140 | if (type == IF_RMAP_OUT) | |
141 | { | |
142 | if (if_rmap->routemap[IF_RMAP_OUT]) | |
143 | free (if_rmap->routemap[IF_RMAP_OUT]); | |
144 | if_rmap->routemap[IF_RMAP_OUT] = strdup (routemap_name); | |
145 | } | |
146 | ||
147 | if (if_rmap_add_hook) | |
148 | (*if_rmap_add_hook) (if_rmap); | |
149 | ||
150 | return if_rmap; | |
151 | } | |
152 | ||
153 | int | |
154 | if_rmap_unset (char *ifname, enum if_rmap_type type, char *routemap_name) | |
155 | { | |
156 | struct if_rmap *if_rmap; | |
157 | ||
158 | if_rmap = if_rmap_lookup (ifname); | |
159 | if (!if_rmap) | |
160 | return 0; | |
161 | ||
162 | if (type == IF_RMAP_IN) | |
163 | { | |
164 | if (!if_rmap->routemap[IF_RMAP_IN]) | |
165 | return 0; | |
166 | if (strcmp (if_rmap->routemap[IF_RMAP_IN], routemap_name) != 0) | |
167 | return 0; | |
168 | ||
169 | free (if_rmap->routemap[IF_RMAP_IN]); | |
170 | if_rmap->routemap[IF_RMAP_IN] = NULL; | |
171 | } | |
172 | ||
173 | if (type == IF_RMAP_OUT) | |
174 | { | |
175 | if (!if_rmap->routemap[IF_RMAP_OUT]) | |
176 | return 0; | |
177 | if (strcmp (if_rmap->routemap[IF_RMAP_OUT], routemap_name) != 0) | |
178 | return 0; | |
179 | ||
180 | free (if_rmap->routemap[IF_RMAP_OUT]); | |
181 | if_rmap->routemap[IF_RMAP_OUT] = NULL; | |
182 | } | |
183 | ||
184 | if (if_rmap_delete_hook) | |
185 | (*if_rmap_delete_hook) (if_rmap); | |
186 | ||
187 | if (if_rmap->routemap[IF_RMAP_IN] == NULL && | |
188 | if_rmap->routemap[IF_RMAP_OUT] == NULL) | |
189 | { | |
190 | hash_release (ifrmaphash, if_rmap); | |
191 | if_rmap_free (if_rmap); | |
192 | } | |
193 | ||
194 | return 1; | |
195 | } | |
196 | ||
a2c62831 | 197 | DEFUN (ripng_if_rmap, |
198 | ripng_if_rmap_cmd, | |
718e3744 | 199 | "route-map RMAP_NAME (in|out) IFNAME", |
200 | "Route map set\n" | |
201 | "Route map name\n" | |
202 | "Route map set for input filtering\n" | |
203 | "Route map set for output filtering\n" | |
204 | "Route map interface name\n") | |
205 | { | |
206 | enum if_rmap_type type; | |
207 | struct if_rmap *if_rmap; | |
208 | ||
209 | if (strncmp (argv[1], "i", 1) == 0) | |
210 | type = IF_RMAP_IN; | |
211 | else if (strncmp (argv[1], "o", 1) == 0) | |
212 | type = IF_RMAP_OUT; | |
213 | else | |
214 | { | |
215 | vty_out (vty, "route-map direction must be [in|out]%s", VTY_NEWLINE); | |
216 | return CMD_WARNING; | |
217 | } | |
218 | ||
219 | if_rmap = if_rmap_set (argv[2], type, argv[0]); | |
220 | ||
221 | return CMD_SUCCESS; | |
222 | } | |
223 | ||
a2c62831 | 224 | DEFUN (no_ripng_if_rmap, |
225 | no_ripng_if_rmap_cmd, | |
718e3744 | 226 | "no route-map ROUTEMAP_NAME (in|out) IFNAME", |
227 | NO_STR | |
228 | "Route map unset\n" | |
229 | "Route map name\n" | |
230 | "Route map for input filtering\n" | |
231 | "Route map for output filtering\n" | |
232 | "Route map interface name\n") | |
233 | { | |
234 | int ret; | |
235 | enum if_rmap_type type; | |
236 | ||
237 | if (strncmp (argv[1], "i", 1) == 0) | |
238 | type = IF_RMAP_IN; | |
239 | else if (strncmp (argv[1], "o", 1) == 0) | |
240 | type = IF_RMAP_OUT; | |
241 | else | |
242 | { | |
243 | vty_out (vty, "route-map direction must be [in|out]%s", VTY_NEWLINE); | |
244 | return CMD_WARNING; | |
245 | } | |
246 | ||
247 | ret = if_rmap_unset (argv[2], type, argv[0]); | |
248 | if (! ret) | |
249 | { | |
250 | vty_out (vty, "route-map doesn't exist%s", VTY_NEWLINE); | |
251 | return CMD_WARNING; | |
252 | } | |
253 | return CMD_SUCCESS; | |
254 | } | |
255 | \f | |
256 | /* Configuration write function. */ | |
257 | int | |
258 | config_write_if_rmap (struct vty *vty) | |
259 | { | |
260 | int i; | |
261 | struct hash_backet *mp; | |
262 | int write = 0; | |
263 | ||
264 | for (i = 0; i < ifrmaphash->size; i++) | |
265 | for (mp = ifrmaphash->index[i]; mp; mp = mp->next) | |
266 | { | |
267 | struct if_rmap *if_rmap; | |
268 | ||
269 | if_rmap = mp->data; | |
270 | ||
271 | if (if_rmap->routemap[IF_RMAP_IN]) | |
272 | { | |
273 | vty_out (vty, " route-map %s in %s%s", | |
274 | if_rmap->routemap[IF_RMAP_IN], | |
275 | if_rmap->ifname, | |
276 | VTY_NEWLINE); | |
277 | write++; | |
278 | } | |
279 | ||
280 | if (if_rmap->routemap[IF_RMAP_OUT]) | |
281 | { | |
282 | vty_out (vty, " route-map %s out %s%s", | |
283 | if_rmap->routemap[IF_RMAP_OUT], | |
284 | if_rmap->ifname, | |
285 | VTY_NEWLINE); | |
286 | write++; | |
287 | } | |
288 | } | |
289 | return write; | |
290 | } | |
291 | ||
292 | void | |
293 | if_rmap_reset () | |
294 | { | |
295 | hash_clean (ifrmaphash, (void (*) (void *)) if_rmap_free); | |
296 | } | |
297 | ||
298 | void | |
41ce926c | 299 | if_rmap_init (void) |
718e3744 | 300 | { |
301 | ifrmaphash = hash_create (if_rmap_hash_make, if_rmap_hash_cmp); | |
302 | ||
a2c62831 | 303 | install_element (RIPNG_NODE, &ripng_if_rmap_cmd); |
304 | install_element (RIPNG_NODE, &no_ripng_if_rmap_cmd); | |
718e3744 | 305 | } |