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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 | * | |
896014f4 DL |
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 | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "hash.h" | |
24 | #include "command.h" | |
25 | #include "memory.h" | |
26 | #include "if.h" | |
0750d21f | 27 | #include "if_rmap.h" |
718e3744 | 28 | |
bf8d3d6a DL |
29 | DEFINE_MTYPE_STATIC(LIB, IF_RMAP_CTX, "Interface route map container"); |
30 | DEFINE_MTYPE_STATIC(LIB, IF_RMAP_CTX_NAME, | |
31 | "Interface route map container name"); | |
32 | DEFINE_MTYPE_STATIC(LIB, IF_RMAP, "Interface route map"); | |
33 | DEFINE_MTYPE_STATIC(LIB, IF_RMAP_NAME, "I.f. route map name"); | |
4a1ab8e4 | 34 | |
c17faa4b | 35 | static struct list *if_rmap_ctx_list; |
6b0655a2 | 36 | |
d62a17ae | 37 | static struct if_rmap *if_rmap_new(void) |
718e3744 | 38 | { |
d62a17ae | 39 | struct if_rmap *new; |
718e3744 | 40 | |
d62a17ae | 41 | new = XCALLOC(MTYPE_IF_RMAP, sizeof(struct if_rmap)); |
718e3744 | 42 | |
d62a17ae | 43 | return new; |
718e3744 | 44 | } |
45 | ||
d62a17ae | 46 | static void if_rmap_free(struct if_rmap *if_rmap) |
718e3744 | 47 | { |
0a22ddfb | 48 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->ifname); |
718e3744 | 49 | |
0a22ddfb QY |
50 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->routemap[IF_RMAP_IN]); |
51 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->routemap[IF_RMAP_OUT]); | |
718e3744 | 52 | |
d62a17ae | 53 | XFREE(MTYPE_IF_RMAP, if_rmap); |
718e3744 | 54 | } |
55 | ||
4b23867c | 56 | struct if_rmap *if_rmap_lookup(struct if_rmap_ctx *ctx, const char *ifname) |
718e3744 | 57 | { |
d62a17ae | 58 | struct if_rmap key; |
59 | struct if_rmap *if_rmap; | |
718e3744 | 60 | |
d62a17ae | 61 | /* temporary copy */ |
62 | key.ifname = (ifname) ? XSTRDUP(MTYPE_IF_RMAP_NAME, ifname) : NULL; | |
718e3744 | 63 | |
4b23867c | 64 | if_rmap = hash_lookup(ctx->ifrmaphash, &key); |
3a7c85d1 | 65 | |
0a22ddfb | 66 | XFREE(MTYPE_IF_RMAP_NAME, key.ifname); |
d62a17ae | 67 | |
68 | return if_rmap; | |
718e3744 | 69 | } |
70 | ||
4b23867c PG |
71 | void if_rmap_hook_add(struct if_rmap_ctx *ctx, |
72 | void (*func)(struct if_rmap_ctx *ctx, | |
73 | struct if_rmap *)) | |
718e3744 | 74 | { |
4b23867c | 75 | ctx->if_rmap_add_hook = func; |
718e3744 | 76 | } |
77 | ||
4b23867c PG |
78 | void if_rmap_hook_delete(struct if_rmap_ctx *ctx, |
79 | void (*func)(struct if_rmap_ctx *ctx, | |
80 | struct if_rmap *)) | |
718e3744 | 81 | { |
4b23867c | 82 | ctx->if_rmap_delete_hook = func; |
718e3744 | 83 | } |
84 | ||
d62a17ae | 85 | static void *if_rmap_hash_alloc(void *arg) |
718e3744 | 86 | { |
d62a17ae | 87 | struct if_rmap *ifarg = (struct if_rmap *)arg; |
88 | struct if_rmap *if_rmap; | |
718e3744 | 89 | |
d62a17ae | 90 | if_rmap = if_rmap_new(); |
91 | if_rmap->ifname = XSTRDUP(MTYPE_IF_RMAP_NAME, ifarg->ifname); | |
718e3744 | 92 | |
d62a17ae | 93 | return if_rmap; |
718e3744 | 94 | } |
95 | ||
4b23867c | 96 | static struct if_rmap *if_rmap_get(struct if_rmap_ctx *ctx, const char *ifname) |
718e3744 | 97 | { |
d62a17ae | 98 | struct if_rmap key; |
99 | struct if_rmap *ret; | |
718e3744 | 100 | |
d62a17ae | 101 | /* temporary copy */ |
102 | key.ifname = (ifname) ? XSTRDUP(MTYPE_IF_RMAP_NAME, ifname) : NULL; | |
718e3744 | 103 | |
4b23867c | 104 | ret = hash_get(ctx->ifrmaphash, &key, if_rmap_hash_alloc); |
3a7c85d1 | 105 | |
0a22ddfb | 106 | XFREE(MTYPE_IF_RMAP_NAME, key.ifname); |
24873f0c | 107 | |
d62a17ae | 108 | return ret; |
718e3744 | 109 | } |
110 | ||
d8b87afe | 111 | static unsigned int if_rmap_hash_make(const void *data) |
718e3744 | 112 | { |
d62a17ae | 113 | const struct if_rmap *if_rmap = data; |
718e3744 | 114 | |
d62a17ae | 115 | return string_hash_make(if_rmap->ifname); |
718e3744 | 116 | } |
117 | ||
74df8d6d | 118 | static bool if_rmap_hash_cmp(const void *arg1, const void *arg2) |
718e3744 | 119 | { |
d62a17ae | 120 | const struct if_rmap *if_rmap1 = arg1; |
121 | const struct if_rmap *if_rmap2 = arg2; | |
ffe11cfb | 122 | |
d62a17ae | 123 | return strcmp(if_rmap1->ifname, if_rmap2->ifname) == 0; |
718e3744 | 124 | } |
6b0655a2 | 125 | |
4b23867c PG |
126 | static struct if_rmap *if_rmap_set(struct if_rmap_ctx *ctx, |
127 | const char *ifname, enum if_rmap_type type, | |
d62a17ae | 128 | const char *routemap_name) |
718e3744 | 129 | { |
d62a17ae | 130 | struct if_rmap *if_rmap; |
131 | ||
4b23867c | 132 | if_rmap = if_rmap_get(ctx, ifname); |
d62a17ae | 133 | |
134 | if (type == IF_RMAP_IN) { | |
0a22ddfb | 135 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->routemap[IF_RMAP_IN]); |
d62a17ae | 136 | if_rmap->routemap[IF_RMAP_IN] = |
137 | XSTRDUP(MTYPE_IF_RMAP_NAME, routemap_name); | |
138 | } | |
139 | if (type == IF_RMAP_OUT) { | |
0a22ddfb | 140 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->routemap[IF_RMAP_OUT]); |
d62a17ae | 141 | if_rmap->routemap[IF_RMAP_OUT] = |
142 | XSTRDUP(MTYPE_IF_RMAP_NAME, routemap_name); | |
143 | } | |
144 | ||
4b23867c PG |
145 | if (ctx->if_rmap_add_hook) |
146 | (ctx->if_rmap_add_hook)(ctx, if_rmap); | |
d62a17ae | 147 | |
148 | return if_rmap; | |
718e3744 | 149 | } |
150 | ||
4b23867c PG |
151 | static int if_rmap_unset(struct if_rmap_ctx *ctx, |
152 | const char *ifname, enum if_rmap_type type, | |
d62a17ae | 153 | const char *routemap_name) |
718e3744 | 154 | { |
d62a17ae | 155 | struct if_rmap *if_rmap; |
156 | ||
4b23867c | 157 | if_rmap = if_rmap_lookup(ctx, ifname); |
d62a17ae | 158 | if (!if_rmap) |
159 | return 0; | |
160 | ||
161 | if (type == IF_RMAP_IN) { | |
162 | if (!if_rmap->routemap[IF_RMAP_IN]) | |
163 | return 0; | |
164 | if (strcmp(if_rmap->routemap[IF_RMAP_IN], routemap_name) != 0) | |
165 | return 0; | |
166 | ||
167 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->routemap[IF_RMAP_IN]); | |
d62a17ae | 168 | } |
169 | ||
170 | if (type == IF_RMAP_OUT) { | |
171 | if (!if_rmap->routemap[IF_RMAP_OUT]) | |
172 | return 0; | |
173 | if (strcmp(if_rmap->routemap[IF_RMAP_OUT], routemap_name) != 0) | |
174 | return 0; | |
175 | ||
176 | XFREE(MTYPE_IF_RMAP_NAME, if_rmap->routemap[IF_RMAP_OUT]); | |
d62a17ae | 177 | } |
178 | ||
4b23867c PG |
179 | if (ctx->if_rmap_delete_hook) |
180 | ctx->if_rmap_delete_hook(ctx, if_rmap); | |
d62a17ae | 181 | |
182 | if (if_rmap->routemap[IF_RMAP_IN] == NULL | |
183 | && if_rmap->routemap[IF_RMAP_OUT] == NULL) { | |
4b23867c | 184 | hash_release(ctx->ifrmaphash, if_rmap); |
d62a17ae | 185 | if_rmap_free(if_rmap); |
186 | } | |
187 | ||
188 | return 1; | |
718e3744 | 189 | } |
190 | ||
0750d21f | 191 | DEFUN (if_rmap, |
192 | if_rmap_cmd, | |
6147e2c6 | 193 | "route-map RMAP_NAME <in|out> IFNAME", |
718e3744 | 194 | "Route map set\n" |
195 | "Route map name\n" | |
196 | "Route map set for input filtering\n" | |
197 | "Route map set for output filtering\n" | |
198 | "Route map interface name\n") | |
199 | { | |
d62a17ae | 200 | int idx_rmap_name = 1; |
201 | int idx_in_out = 2; | |
202 | int idx_ifname = 3; | |
203 | enum if_rmap_type type; | |
4b23867c PG |
204 | struct if_rmap_ctx *ctx = |
205 | (struct if_rmap_ctx *)listnode_head(if_rmap_ctx_list); | |
d62a17ae | 206 | |
207 | if (strncmp(argv[idx_in_out]->text, "in", 1) == 0) | |
208 | type = IF_RMAP_IN; | |
209 | else if (strncmp(argv[idx_in_out]->text, "out", 1) == 0) | |
210 | type = IF_RMAP_OUT; | |
211 | else { | |
212 | vty_out(vty, "route-map direction must be [in|out]\n"); | |
213 | return CMD_WARNING_CONFIG_FAILED; | |
214 | } | |
215 | ||
4b23867c PG |
216 | if_rmap_set(ctx, argv[idx_ifname]->arg, |
217 | type, argv[idx_rmap_name]->arg); | |
d62a17ae | 218 | |
219 | return CMD_SUCCESS; | |
c349116d | 220 | } |
4f849479 | 221 | |
0750d21f | 222 | DEFUN (no_if_rmap, |
223 | no_if_rmap_cmd, | |
6147e2c6 | 224 | "no route-map ROUTEMAP_NAME <in|out> IFNAME", |
718e3744 | 225 | NO_STR |
226 | "Route map unset\n" | |
227 | "Route map name\n" | |
228 | "Route map for input filtering\n" | |
229 | "Route map for output filtering\n" | |
230 | "Route map interface name\n") | |
231 | { | |
d62a17ae | 232 | int idx_routemap_name = 2; |
233 | int idx_in_out = 3; | |
234 | int idx_ifname = 4; | |
235 | int ret; | |
236 | enum if_rmap_type type; | |
4b23867c PG |
237 | struct if_rmap_ctx *ctx = |
238 | (struct if_rmap_ctx *)listnode_head(if_rmap_ctx_list); | |
d62a17ae | 239 | |
240 | if (strncmp(argv[idx_in_out]->arg, "i", 1) == 0) | |
241 | type = IF_RMAP_IN; | |
242 | else if (strncmp(argv[idx_in_out]->arg, "o", 1) == 0) | |
243 | type = IF_RMAP_OUT; | |
244 | else { | |
245 | vty_out(vty, "route-map direction must be [in|out]\n"); | |
246 | return CMD_WARNING_CONFIG_FAILED; | |
247 | } | |
248 | ||
4b23867c | 249 | ret = if_rmap_unset(ctx, argv[idx_ifname]->arg, type, |
d62a17ae | 250 | argv[idx_routemap_name]->arg); |
251 | if (!ret) { | |
252 | vty_out(vty, "route-map doesn't exist\n"); | |
253 | return CMD_WARNING_CONFIG_FAILED; | |
254 | } | |
255 | return CMD_SUCCESS; | |
c349116d | 256 | } |
4f849479 | 257 | |
6b0655a2 | 258 | |
718e3744 | 259 | /* Configuration write function. */ |
4b23867c PG |
260 | int config_write_if_rmap(struct vty *vty, |
261 | struct if_rmap_ctx *ctx) | |
718e3744 | 262 | { |
d62a17ae | 263 | unsigned int i; |
e3b78da8 | 264 | struct hash_bucket *mp; |
d62a17ae | 265 | int write = 0; |
4b23867c | 266 | struct hash *ifrmaphash = ctx->ifrmaphash; |
d62a17ae | 267 | |
268 | for (i = 0; i < ifrmaphash->size; i++) | |
269 | for (mp = ifrmaphash->index[i]; mp; mp = mp->next) { | |
270 | struct if_rmap *if_rmap; | |
271 | ||
272 | if_rmap = mp->data; | |
273 | ||
274 | if (if_rmap->routemap[IF_RMAP_IN]) { | |
275 | vty_out(vty, " route-map %s in %s\n", | |
276 | if_rmap->routemap[IF_RMAP_IN], | |
277 | if_rmap->ifname); | |
278 | write++; | |
279 | } | |
280 | ||
281 | if (if_rmap->routemap[IF_RMAP_OUT]) { | |
282 | vty_out(vty, " route-map %s out %s\n", | |
283 | if_rmap->routemap[IF_RMAP_OUT], | |
284 | if_rmap->ifname); | |
285 | write++; | |
286 | } | |
287 | } | |
288 | return write; | |
718e3744 | 289 | } |
290 | ||
4b23867c PG |
291 | void if_rmap_ctx_delete(struct if_rmap_ctx *ctx) |
292 | { | |
cbcbac45 | 293 | listnode_delete(if_rmap_ctx_list, ctx); |
4b23867c | 294 | hash_clean(ctx->ifrmaphash, (void (*)(void *))if_rmap_free); |
aec0d756 PG |
295 | if (ctx->name) |
296 | XFREE(MTYPE_IF_RMAP_CTX_NAME, ctx); | |
4b23867c PG |
297 | XFREE(MTYPE_IF_RMAP_CTX, ctx); |
298 | } | |
299 | ||
aec0d756 PG |
300 | /* name is optional: either vrf name, or other */ |
301 | struct if_rmap_ctx *if_rmap_ctx_create(const char *name) | |
718e3744 | 302 | { |
4b23867c PG |
303 | struct if_rmap_ctx *ctx; |
304 | ||
305 | ctx = XCALLOC(MTYPE_IF_RMAP_CTX, sizeof(struct if_rmap_ctx)); | |
aec0d756 PG |
306 | |
307 | if (ctx->name) | |
308 | ctx->name = XSTRDUP(MTYPE_IF_RMAP_CTX_NAME, name); | |
4b23867c PG |
309 | ctx->ifrmaphash = hash_create_size(4, if_rmap_hash_make, if_rmap_hash_cmp, |
310 | "Interface Route-Map Hash"); | |
311 | if (!if_rmap_ctx_list) | |
312 | if_rmap_ctx_list = list_new(); | |
313 | listnode_add(if_rmap_ctx_list, ctx); | |
314 | return ctx; | |
718e3744 | 315 | } |
316 | ||
d62a17ae | 317 | void if_rmap_init(int node) |
718e3744 | 318 | { |
d62a17ae | 319 | if (node == RIPNG_NODE) { |
320 | } else if (node == RIP_NODE) { | |
321 | install_element(RIP_NODE, &if_rmap_cmd); | |
322 | install_element(RIP_NODE, &no_if_rmap_cmd); | |
323 | } | |
4b23867c PG |
324 | if_rmap_ctx_list = list_new(); |
325 | } | |
326 | ||
327 | void if_rmap_terminate(void) | |
328 | { | |
329 | if (!if_rmap_ctx_list) | |
330 | return; | |
331 | list_delete(&if_rmap_ctx_list); | |
718e3744 | 332 | } |