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Commit | Line | Data |
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718e3744 | 1 | /* Route map function. |
896014f4 DL |
2 | * Copyright (C) 1998, 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 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 | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "linklist.h" | |
24 | #include "memory.h" | |
25 | #include "vector.h" | |
26 | #include "prefix.h" | |
82f97584 | 27 | #include "vty.h" |
718e3744 | 28 | #include "routemap.h" |
29 | #include "command.h" | |
fee0f4c6 | 30 | #include "log.h" |
518f0eb1 | 31 | #include "hash.h" |
b85120bc | 32 | #include "libfrr.h" |
040c7c3a | 33 | #include "lib_errors.h" |
6b0655a2 | 34 | |
d62a17ae | 35 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP, "Route map") |
36 | DEFINE_MTYPE(LIB, ROUTE_MAP_NAME, "Route map name") | |
37 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_INDEX, "Route map index") | |
38 | DEFINE_MTYPE(LIB, ROUTE_MAP_RULE, "Route map rule") | |
4a1ab8e4 | 39 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_RULE_STR, "Route map rule str") |
d62a17ae | 40 | DEFINE_MTYPE(LIB, ROUTE_MAP_COMPILED, "Route map compiled") |
41 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP, "Route map dependency") | |
e2c8d6ce | 42 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP_DATA, "Route map dependency data") |
4a1ab8e4 | 43 | |
e80e7cce DL |
44 | DEFINE_QOBJ_TYPE(route_map_index) |
45 | DEFINE_QOBJ_TYPE(route_map) | |
46 | ||
718e3744 | 47 | /* Vector for route match rules. */ |
48 | static vector route_match_vec; | |
49 | ||
50 | /* Vector for route set rules. */ | |
51 | static vector route_set_vec; | |
52 | ||
a7282663 | 53 | struct route_map_match_set_hooks rmap_match_set_hook; |
82f97584 DW |
54 | |
55 | /* match interface */ | |
d62a17ae | 56 | void route_map_match_interface_hook(int (*func)( |
57 | struct vty *vty, struct route_map_index *index, const char *command, | |
58 | const char *arg, route_map_event_t type)) | |
82f97584 | 59 | { |
d62a17ae | 60 | rmap_match_set_hook.match_interface = func; |
82f97584 DW |
61 | } |
62 | ||
63 | /* no match interface */ | |
d62a17ae | 64 | void route_map_no_match_interface_hook(int (*func)( |
65 | struct vty *vty, struct route_map_index *index, const char *command, | |
66 | const char *arg, route_map_event_t type)) | |
82f97584 | 67 | { |
d62a17ae | 68 | rmap_match_set_hook.no_match_interface = func; |
82f97584 DW |
69 | } |
70 | ||
71 | /* match ip address */ | |
d62a17ae | 72 | void route_map_match_ip_address_hook(int (*func)( |
73 | struct vty *vty, struct route_map_index *index, const char *command, | |
74 | const char *arg, route_map_event_t type)) | |
82f97584 | 75 | { |
d62a17ae | 76 | rmap_match_set_hook.match_ip_address = func; |
82f97584 DW |
77 | } |
78 | ||
79 | /* no match ip address */ | |
d62a17ae | 80 | void route_map_no_match_ip_address_hook(int (*func)( |
81 | struct vty *vty, struct route_map_index *index, const char *command, | |
82 | const char *arg, route_map_event_t type)) | |
82f97584 | 83 | { |
d62a17ae | 84 | rmap_match_set_hook.no_match_ip_address = func; |
82f97584 DW |
85 | } |
86 | ||
87 | /* match ip address prefix list */ | |
d62a17ae | 88 | void route_map_match_ip_address_prefix_list_hook(int (*func)( |
89 | struct vty *vty, struct route_map_index *index, const char *command, | |
90 | const char *arg, route_map_event_t type)) | |
82f97584 | 91 | { |
d62a17ae | 92 | rmap_match_set_hook.match_ip_address_prefix_list = func; |
82f97584 DW |
93 | } |
94 | ||
95 | /* no match ip address prefix list */ | |
d62a17ae | 96 | void route_map_no_match_ip_address_prefix_list_hook(int (*func)( |
97 | struct vty *vty, struct route_map_index *index, const char *command, | |
98 | const char *arg, route_map_event_t type)) | |
82f97584 | 99 | { |
d62a17ae | 100 | rmap_match_set_hook.no_match_ip_address_prefix_list = func; |
82f97584 DW |
101 | } |
102 | ||
103 | /* match ip next hop */ | |
d62a17ae | 104 | void route_map_match_ip_next_hop_hook(int (*func)( |
105 | struct vty *vty, struct route_map_index *index, const char *command, | |
106 | const char *arg, route_map_event_t type)) | |
82f97584 | 107 | { |
d62a17ae | 108 | rmap_match_set_hook.match_ip_next_hop = func; |
82f97584 DW |
109 | } |
110 | ||
111 | /* no match ip next hop */ | |
d62a17ae | 112 | void route_map_no_match_ip_next_hop_hook(int (*func)( |
113 | struct vty *vty, struct route_map_index *index, const char *command, | |
114 | const char *arg, route_map_event_t type)) | |
82f97584 | 115 | { |
d62a17ae | 116 | rmap_match_set_hook.no_match_ip_next_hop = func; |
82f97584 DW |
117 | } |
118 | ||
119 | /* match ip next hop prefix list */ | |
d62a17ae | 120 | void route_map_match_ip_next_hop_prefix_list_hook(int (*func)( |
121 | struct vty *vty, struct route_map_index *index, const char *command, | |
122 | const char *arg, route_map_event_t type)) | |
82f97584 | 123 | { |
d62a17ae | 124 | rmap_match_set_hook.match_ip_next_hop_prefix_list = func; |
82f97584 DW |
125 | } |
126 | ||
127 | /* no match ip next hop prefix list */ | |
d62a17ae | 128 | void route_map_no_match_ip_next_hop_prefix_list_hook(int (*func)( |
129 | struct vty *vty, struct route_map_index *index, const char *command, | |
130 | const char *arg, route_map_event_t type)) | |
82f97584 | 131 | { |
d62a17ae | 132 | rmap_match_set_hook.no_match_ip_next_hop_prefix_list = func; |
82f97584 DW |
133 | } |
134 | ||
f554fda7 | 135 | /* match ip next-hop type */ |
61ad901e DA |
136 | void route_map_match_ip_next_hop_type_hook(int (*func)( |
137 | struct vty *vty, struct route_map_index *index, const char *command, | |
138 | const char *arg, route_map_event_t type)) | |
139 | { | |
140 | rmap_match_set_hook.match_ip_next_hop_type = func; | |
141 | } | |
142 | ||
f554fda7 | 143 | /* no match ip next-hop type */ |
61ad901e DA |
144 | void route_map_no_match_ip_next_hop_type_hook(int (*func)( |
145 | struct vty *vty, struct route_map_index *index, const char *command, | |
146 | const char *arg, route_map_event_t type)) | |
147 | { | |
148 | rmap_match_set_hook.no_match_ip_next_hop_type = func; | |
149 | } | |
150 | ||
82f97584 | 151 | /* match ipv6 address */ |
d62a17ae | 152 | void route_map_match_ipv6_address_hook(int (*func)( |
153 | struct vty *vty, struct route_map_index *index, const char *command, | |
154 | const char *arg, route_map_event_t type)) | |
82f97584 | 155 | { |
d62a17ae | 156 | rmap_match_set_hook.match_ipv6_address = func; |
82f97584 DW |
157 | } |
158 | ||
159 | /* no match ipv6 address */ | |
d62a17ae | 160 | void route_map_no_match_ipv6_address_hook(int (*func)( |
161 | struct vty *vty, struct route_map_index *index, const char *command, | |
162 | const char *arg, route_map_event_t type)) | |
82f97584 | 163 | { |
d62a17ae | 164 | rmap_match_set_hook.no_match_ipv6_address = func; |
82f97584 DW |
165 | } |
166 | ||
167 | ||
168 | /* match ipv6 address prefix list */ | |
d62a17ae | 169 | void route_map_match_ipv6_address_prefix_list_hook(int (*func)( |
170 | struct vty *vty, struct route_map_index *index, const char *command, | |
171 | const char *arg, route_map_event_t type)) | |
82f97584 | 172 | { |
d62a17ae | 173 | rmap_match_set_hook.match_ipv6_address_prefix_list = func; |
82f97584 DW |
174 | } |
175 | ||
176 | /* no match ipv6 address prefix list */ | |
d62a17ae | 177 | void route_map_no_match_ipv6_address_prefix_list_hook(int (*func)( |
178 | struct vty *vty, struct route_map_index *index, const char *command, | |
179 | const char *arg, route_map_event_t type)) | |
82f97584 | 180 | { |
d62a17ae | 181 | rmap_match_set_hook.no_match_ipv6_address_prefix_list = func; |
82f97584 DW |
182 | } |
183 | ||
61ad901e DA |
184 | /* match ipv6 next-hop type */ |
185 | void route_map_match_ipv6_next_hop_type_hook(int (*func)( | |
186 | struct vty *vty, struct route_map_index *index, const char *command, | |
187 | const char *arg, route_map_event_t type)) | |
188 | { | |
189 | rmap_match_set_hook.match_ipv6_next_hop_type = func; | |
190 | } | |
191 | ||
192 | /* no match ipv6 next-hop type */ | |
193 | void route_map_no_match_ipv6_next_hop_type_hook(int (*func)( | |
194 | struct vty *vty, struct route_map_index *index, const char *command, | |
195 | const char *arg, route_map_event_t type)) | |
196 | { | |
197 | rmap_match_set_hook.no_match_ipv6_next_hop_type = func; | |
198 | } | |
199 | ||
82f97584 | 200 | /* match metric */ |
d62a17ae | 201 | void route_map_match_metric_hook(int (*func)( |
202 | struct vty *vty, struct route_map_index *index, const char *command, | |
203 | const char *arg, route_map_event_t type)) | |
82f97584 | 204 | { |
d62a17ae | 205 | rmap_match_set_hook.match_metric = func; |
82f97584 DW |
206 | } |
207 | ||
208 | /* no match metric */ | |
d62a17ae | 209 | void route_map_no_match_metric_hook(int (*func)( |
210 | struct vty *vty, struct route_map_index *index, const char *command, | |
211 | const char *arg, route_map_event_t type)) | |
82f97584 | 212 | { |
d62a17ae | 213 | rmap_match_set_hook.no_match_metric = func; |
82f97584 DW |
214 | } |
215 | ||
216 | /* match tag */ | |
d62a17ae | 217 | void route_map_match_tag_hook(int (*func)(struct vty *vty, |
218 | struct route_map_index *index, | |
219 | const char *command, const char *arg, | |
220 | route_map_event_t type)) | |
82f97584 | 221 | { |
d62a17ae | 222 | rmap_match_set_hook.match_tag = func; |
82f97584 DW |
223 | } |
224 | ||
225 | /* no match tag */ | |
d62a17ae | 226 | void route_map_no_match_tag_hook(int (*func)( |
227 | struct vty *vty, struct route_map_index *index, const char *command, | |
228 | const char *arg, route_map_event_t type)) | |
82f97584 | 229 | { |
d62a17ae | 230 | rmap_match_set_hook.no_match_tag = func; |
82f97584 DW |
231 | } |
232 | ||
233 | /* set ip nexthop */ | |
d62a17ae | 234 | void route_map_set_ip_nexthop_hook(int (*func)(struct vty *vty, |
235 | struct route_map_index *index, | |
236 | const char *command, | |
237 | const char *arg)) | |
82f97584 | 238 | { |
d62a17ae | 239 | rmap_match_set_hook.set_ip_nexthop = func; |
82f97584 DW |
240 | } |
241 | ||
242 | /* no set ip nexthop */ | |
d62a17ae | 243 | void route_map_no_set_ip_nexthop_hook(int (*func)(struct vty *vty, |
244 | struct route_map_index *index, | |
245 | const char *command, | |
246 | const char *arg)) | |
82f97584 | 247 | { |
d62a17ae | 248 | rmap_match_set_hook.no_set_ip_nexthop = func; |
82f97584 DW |
249 | } |
250 | ||
251 | /* set ipv6 nexthop local */ | |
d62a17ae | 252 | void route_map_set_ipv6_nexthop_local_hook( |
253 | int (*func)(struct vty *vty, struct route_map_index *index, | |
254 | const char *command, const char *arg)) | |
82f97584 | 255 | { |
d62a17ae | 256 | rmap_match_set_hook.set_ipv6_nexthop_local = func; |
82f97584 DW |
257 | } |
258 | ||
259 | /* no set ipv6 nexthop local */ | |
d62a17ae | 260 | void route_map_no_set_ipv6_nexthop_local_hook( |
261 | int (*func)(struct vty *vty, struct route_map_index *index, | |
262 | const char *command, const char *arg)) | |
82f97584 | 263 | { |
d62a17ae | 264 | rmap_match_set_hook.no_set_ipv6_nexthop_local = func; |
82f97584 DW |
265 | } |
266 | ||
267 | /* set metric */ | |
d62a17ae | 268 | void route_map_set_metric_hook(int (*func)(struct vty *vty, |
269 | struct route_map_index *index, | |
270 | const char *command, | |
271 | const char *arg)) | |
82f97584 | 272 | { |
d62a17ae | 273 | rmap_match_set_hook.set_metric = func; |
82f97584 DW |
274 | } |
275 | ||
276 | /* no set metric */ | |
d62a17ae | 277 | void route_map_no_set_metric_hook(int (*func)(struct vty *vty, |
278 | struct route_map_index *index, | |
279 | const char *command, | |
280 | const char *arg)) | |
82f97584 | 281 | { |
d62a17ae | 282 | rmap_match_set_hook.no_set_metric = func; |
82f97584 DW |
283 | } |
284 | ||
285 | /* set tag */ | |
d62a17ae | 286 | void route_map_set_tag_hook(int (*func)(struct vty *vty, |
287 | struct route_map_index *index, | |
288 | const char *command, const char *arg)) | |
82f97584 | 289 | { |
d62a17ae | 290 | rmap_match_set_hook.set_tag = func; |
82f97584 DW |
291 | } |
292 | ||
293 | /* no set tag */ | |
d62a17ae | 294 | void route_map_no_set_tag_hook(int (*func)(struct vty *vty, |
295 | struct route_map_index *index, | |
296 | const char *command, | |
297 | const char *arg)) | |
298 | { | |
299 | rmap_match_set_hook.no_set_tag = func; | |
82f97584 DW |
300 | } |
301 | ||
d62a17ae | 302 | int generic_match_add(struct vty *vty, struct route_map_index *index, |
303 | const char *command, const char *arg, | |
304 | route_map_event_t type) | |
305 | { | |
cda7187d | 306 | enum rmap_compile_rets ret; |
d62a17ae | 307 | |
e2c8d6ce | 308 | ret = route_map_add_match(index, command, arg, type); |
9ca25fed | 309 | switch (ret) { |
9ca25fed | 310 | case RMAP_RULE_MISSING: |
a162869e RZ |
311 | if (vty) |
312 | vty_out(vty, "%% [%s] Can't find rule.\n", | |
313 | frr_protonameinst); | |
314 | else | |
315 | zlog_warn("Can't find rule: %s", command); | |
9ca25fed | 316 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 317 | case RMAP_COMPILE_ERROR: |
a162869e RZ |
318 | if (vty) |
319 | vty_out(vty, | |
320 | "%% [%s] Argument form is unsupported or malformed.\n", | |
321 | frr_protonameinst); | |
322 | else | |
323 | zlog_warn("Argument form is unsupported or malformed: " | |
324 | "%s %s", command, arg); | |
9ca25fed | 325 | return CMD_WARNING_CONFIG_FAILED; |
909f3d56 | 326 | case RMAP_COMPILE_SUCCESS: |
cda7187d DS |
327 | /* |
328 | * Nothing to do here move along | |
329 | */ | |
330 | break; | |
d62a17ae | 331 | } |
82f97584 | 332 | |
d62a17ae | 333 | return CMD_SUCCESS; |
334 | } | |
335 | ||
336 | int generic_match_delete(struct vty *vty, struct route_map_index *index, | |
337 | const char *command, const char *arg, | |
338 | route_map_event_t type) | |
339 | { | |
cda7187d | 340 | enum rmap_compile_rets ret; |
9ca25fed | 341 | int retval = CMD_SUCCESS; |
d62a17ae | 342 | char *dep_name = NULL; |
343 | const char *tmpstr; | |
344 | char *rmap_name = NULL; | |
345 | ||
346 | if (type != RMAP_EVENT_MATCH_DELETED) { | |
347 | /* ignore the mundane, the types without any dependency */ | |
348 | if (arg == NULL) { | |
349 | if ((tmpstr = route_map_get_match_arg(index, command)) | |
350 | != NULL) | |
351 | dep_name = | |
352 | XSTRDUP(MTYPE_ROUTE_MAP_RULE, tmpstr); | |
353 | } else { | |
354 | dep_name = XSTRDUP(MTYPE_ROUTE_MAP_RULE, arg); | |
355 | } | |
356 | rmap_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, index->map->name); | |
357 | } | |
358 | ||
909f3d56 | 359 | ret = route_map_delete_match(index, command, dep_name, type); |
9ca25fed DS |
360 | switch (ret) { |
361 | case RMAP_RULE_MISSING: | |
a162869e RZ |
362 | if (vty) |
363 | vty_out(vty, "%% [%s] Can't find rule.\n", | |
364 | frr_protonameinst); | |
365 | else | |
366 | zlog_warn("Can't find rule: %s", command); | |
9ca25fed DS |
367 | retval = CMD_WARNING_CONFIG_FAILED; |
368 | break; | |
369 | case RMAP_COMPILE_ERROR: | |
a162869e RZ |
370 | if (vty) |
371 | vty_out(vty, | |
372 | "%% [%s] Argument form is unsupported or malformed.\n", | |
373 | frr_protonameinst); | |
374 | else | |
375 | zlog_warn("Argument form is unsupported or malformed: " | |
376 | "%s %s", command, arg); | |
9ca25fed DS |
377 | retval = CMD_WARNING_CONFIG_FAILED; |
378 | break; | |
379 | case RMAP_COMPILE_SUCCESS: | |
cda7187d DS |
380 | /* |
381 | * Nothing to do here | |
382 | */ | |
383 | break; | |
d62a17ae | 384 | } |
385 | ||
0a22ddfb QY |
386 | XFREE(MTYPE_ROUTE_MAP_RULE, dep_name); |
387 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
d62a17ae | 388 | |
9ca25fed | 389 | return retval; |
d62a17ae | 390 | } |
391 | ||
392 | int generic_set_add(struct vty *vty, struct route_map_index *index, | |
393 | const char *command, const char *arg) | |
718e3744 | 394 | { |
cda7187d | 395 | enum rmap_compile_rets ret; |
d62a17ae | 396 | |
397 | ret = route_map_add_set(index, command, arg); | |
9ca25fed DS |
398 | switch (ret) { |
399 | case RMAP_RULE_MISSING: | |
a162869e RZ |
400 | if (vty) |
401 | vty_out(vty, "%% [%s] Can't find rule.\n", frr_protonameinst); | |
402 | else | |
403 | zlog_warn("Can't find rule: %s", command); | |
9ca25fed | 404 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 405 | case RMAP_COMPILE_ERROR: |
a162869e RZ |
406 | if (vty) |
407 | vty_out(vty, | |
408 | "%% [%s] Argument form is unsupported or malformed.\n", | |
409 | frr_protonameinst); | |
410 | else | |
411 | zlog_warn("Argument form is unsupported or malformed: " | |
412 | "%s %s", command, arg); | |
9ca25fed | 413 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
414 | case RMAP_COMPILE_SUCCESS: |
415 | break; | |
d62a17ae | 416 | } |
9ca25fed | 417 | |
d62a17ae | 418 | return CMD_SUCCESS; |
419 | } | |
420 | ||
421 | int generic_set_delete(struct vty *vty, struct route_map_index *index, | |
422 | const char *command, const char *arg) | |
423 | { | |
cda7187d | 424 | enum rmap_compile_rets ret; |
d62a17ae | 425 | |
426 | ret = route_map_delete_set(index, command, arg); | |
9ca25fed DS |
427 | switch (ret) { |
428 | case RMAP_RULE_MISSING: | |
a162869e RZ |
429 | if (vty) |
430 | vty_out(vty, "%% [%s] Can't find rule.\n", frr_protonameinst); | |
431 | else | |
432 | zlog_warn("Can't find rule: %s", command); | |
9ca25fed | 433 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 434 | case RMAP_COMPILE_ERROR: |
a162869e RZ |
435 | if (vty) |
436 | vty_out(vty, | |
437 | "%% [%s] Argument form is unsupported or malformed.\n", | |
438 | frr_protonameinst); | |
439 | else | |
440 | zlog_warn("Argument form is unsupported or malformed: " | |
441 | "%s %s", command, arg); | |
9ca25fed | 442 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
443 | case RMAP_COMPILE_SUCCESS: |
444 | break; | |
d62a17ae | 445 | } |
9ca25fed | 446 | |
d62a17ae | 447 | return CMD_SUCCESS; |
448 | } | |
449 | ||
450 | ||
718e3744 | 451 | /* Master list of route map. */ |
a7282663 RZ |
452 | struct route_map_list route_map_master = {NULL, NULL, NULL, NULL, NULL}; |
453 | struct hash *route_map_master_hash = NULL; | |
a6e0d253 | 454 | |
d8b87afe | 455 | static unsigned int route_map_hash_key_make(const void *p) |
a6e0d253 | 456 | { |
d62a17ae | 457 | const struct route_map *map = p; |
458 | return string_hash_make(map->name); | |
a6e0d253 DW |
459 | } |
460 | ||
74df8d6d | 461 | static bool route_map_hash_cmp(const void *p1, const void *p2) |
a6e0d253 | 462 | { |
d62a17ae | 463 | const struct route_map *map1 = p1; |
464 | const struct route_map *map2 = p2; | |
a6e0d253 | 465 | |
d62a17ae | 466 | if (map1->deleted == map2->deleted) { |
467 | if (map1->name && map2->name) { | |
468 | if (!strcmp(map1->name, map2->name)) { | |
74df8d6d | 469 | return true; |
d62a17ae | 470 | } |
471 | } else if (!map1->name && !map2->name) { | |
74df8d6d | 472 | return true; |
d62a17ae | 473 | } |
474 | } | |
a6e0d253 | 475 | |
74df8d6d | 476 | return false; |
a6e0d253 | 477 | } |
518f0eb1 | 478 | |
d62a17ae | 479 | enum route_map_upd8_type { |
480 | ROUTE_MAP_ADD = 1, | |
481 | ROUTE_MAP_DEL, | |
482 | }; | |
518f0eb1 DS |
483 | |
484 | /* all possible route-map dependency types */ | |
d62a17ae | 485 | enum route_map_dep_type { |
486 | ROUTE_MAP_DEP_RMAP = 1, | |
487 | ROUTE_MAP_DEP_CLIST, | |
488 | ROUTE_MAP_DEP_ECLIST, | |
489 | ROUTE_MAP_DEP_LCLIST, | |
490 | ROUTE_MAP_DEP_PLIST, | |
491 | ROUTE_MAP_DEP_ASPATH, | |
492 | ROUTE_MAP_DEP_FILTER, | |
493 | ROUTE_MAP_DEP_MAX, | |
494 | }; | |
495 | ||
496 | struct route_map_dep { | |
497 | char *dep_name; | |
498 | struct hash *dep_rmap_hash; | |
499 | struct hash *this_hash; /* ptr to the hash structure this is part of */ | |
518f0eb1 | 500 | }; |
718e3744 | 501 | |
e2c8d6ce NT |
502 | struct route_map_dep_data { |
503 | /* Route-map name. | |
504 | */ | |
505 | char *rname; | |
506 | /* Count of number of sequences of this | |
507 | * route-map that depend on the same entity. | |
508 | */ | |
509 | uint16_t refcnt; | |
510 | }; | |
511 | ||
518f0eb1 | 512 | /* Hashes maintaining dependency between various sublists used by route maps */ |
1b3e9a21 | 513 | static struct hash *route_map_dep_hash[ROUTE_MAP_DEP_MAX]; |
518f0eb1 | 514 | |
d8b87afe | 515 | static unsigned int route_map_dep_hash_make_key(const void *p); |
d62a17ae | 516 | static void route_map_clear_all_references(char *rmap_name); |
517 | static void route_map_rule_delete(struct route_map_rule_list *, | |
518 | struct route_map_rule *); | |
e3ab8170 | 519 | static bool rmap_debug; |
718e3744 | 520 | |
718e3744 | 521 | /* New route map allocation. Please note route map's name must be |
522 | specified. */ | |
d62a17ae | 523 | static struct route_map *route_map_new(const char *name) |
718e3744 | 524 | { |
d62a17ae | 525 | struct route_map *new; |
718e3744 | 526 | |
d62a17ae | 527 | new = XCALLOC(MTYPE_ROUTE_MAP, sizeof(struct route_map)); |
528 | new->name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
529 | QOBJ_REG(new, route_map); | |
530 | return new; | |
718e3744 | 531 | } |
532 | ||
533 | /* Add new name to route_map. */ | |
d62a17ae | 534 | static struct route_map *route_map_add(const char *name) |
535 | { | |
536 | struct route_map *map; | |
537 | struct route_map_list *list; | |
538 | ||
539 | map = route_map_new(name); | |
540 | list = &route_map_master; | |
541 | ||
542 | /* Add map to the hash */ | |
543 | hash_get(route_map_master_hash, map, hash_alloc_intern); | |
544 | ||
545 | /* Add new entry to the head of the list to match how it is added in the | |
546 | * hash table. This is to ensure that if the same route-map has been | |
547 | * created more than once and then marked for deletion (which can happen | |
548 | * if prior deletions haven't completed as BGP hasn't yet done the | |
549 | * route-map processing), the order of the entities is the same in both | |
550 | * the list and the hash table. Otherwise, since there is nothing to | |
551 | * distinguish between the two entries, the wrong entry could get freed. | |
552 | * TODO: This needs to be re-examined to handle it better - e.g., revive | |
553 | * a deleted entry if the route-map is created again. | |
554 | */ | |
555 | map->prev = NULL; | |
556 | map->next = list->head; | |
557 | if (list->head) | |
558 | list->head->prev = map; | |
559 | list->head = map; | |
560 | if (!list->tail) | |
561 | list->tail = map; | |
562 | ||
563 | /* Execute hook. */ | |
564 | if (route_map_master.add_hook) { | |
565 | (*route_map_master.add_hook)(name); | |
566 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_ADDED); | |
567 | } | |
e3ab8170 AD |
568 | |
569 | if (rmap_debug) | |
570 | zlog_debug("Add route-map %s", name); | |
d62a17ae | 571 | return map; |
718e3744 | 572 | } |
573 | ||
518f0eb1 DS |
574 | /* this is supposed to be called post processing by |
575 | * the delete hook function. Don't invoke delete_hook | |
576 | * again in this routine. | |
577 | */ | |
d62a17ae | 578 | static void route_map_free_map(struct route_map *map) |
718e3744 | 579 | { |
d62a17ae | 580 | struct route_map_list *list; |
581 | struct route_map_index *index; | |
518f0eb1 | 582 | |
d62a17ae | 583 | if (map == NULL) |
584 | return; | |
a31ff449 | 585 | |
d62a17ae | 586 | while ((index = map->head) != NULL) |
587 | route_map_index_delete(index, 0); | |
718e3744 | 588 | |
e3ab8170 AD |
589 | if (rmap_debug) |
590 | zlog_debug("Deleting route-map %s", map->name); | |
591 | ||
d62a17ae | 592 | list = &route_map_master; |
718e3744 | 593 | |
d62a17ae | 594 | QOBJ_UNREG(map); |
e80e7cce | 595 | |
d62a17ae | 596 | if (map->next) |
597 | map->next->prev = map->prev; | |
598 | else | |
599 | list->tail = map->prev; | |
718e3744 | 600 | |
d62a17ae | 601 | if (map->prev) |
602 | map->prev->next = map->next; | |
603 | else | |
604 | list->head = map->next; | |
718e3744 | 605 | |
d62a17ae | 606 | hash_release(route_map_master_hash, map); |
607 | XFREE(MTYPE_ROUTE_MAP_NAME, map->name); | |
608 | XFREE(MTYPE_ROUTE_MAP, map); | |
518f0eb1 | 609 | } |
718e3744 | 610 | |
518f0eb1 | 611 | /* Route map delete from list. */ |
a7282663 | 612 | void route_map_delete(struct route_map *map) |
518f0eb1 | 613 | { |
d62a17ae | 614 | struct route_map_index *index; |
615 | char *name; | |
518f0eb1 | 616 | |
d62a17ae | 617 | while ((index = map->head) != NULL) |
618 | route_map_index_delete(index, 0); | |
518f0eb1 | 619 | |
d62a17ae | 620 | name = map->name; |
621 | map->head = NULL; | |
518f0eb1 | 622 | |
d62a17ae | 623 | /* Clear all dependencies */ |
624 | route_map_clear_all_references(name); | |
e4694d0d | 625 | map->deleted = true; |
d62a17ae | 626 | /* Execute deletion hook. */ |
627 | if (route_map_master.delete_hook) { | |
628 | (*route_map_master.delete_hook)(name); | |
629 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_DELETED); | |
630 | } | |
718e3744 | 631 | |
d62a17ae | 632 | if (!map->to_be_processed) { |
633 | route_map_free_map(map); | |
634 | } | |
718e3744 | 635 | } |
636 | ||
637 | /* Lookup route map by route map name string. */ | |
d62a17ae | 638 | struct route_map *route_map_lookup_by_name(const char *name) |
718e3744 | 639 | { |
d62a17ae | 640 | struct route_map *map; |
641 | struct route_map tmp_map; | |
718e3744 | 642 | |
d62a17ae | 643 | if (!name) |
644 | return NULL; | |
518f0eb1 | 645 | |
d62a17ae | 646 | // map.deleted is 0 via memset |
647 | memset(&tmp_map, 0, sizeof(struct route_map)); | |
648 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
649 | map = hash_lookup(route_map_master_hash, &tmp_map); | |
650 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
651 | return map; | |
718e3744 | 652 | } |
653 | ||
1de27621 DA |
654 | /* Simple helper to warn if route-map does not exist. */ |
655 | struct route_map *route_map_lookup_warn_noexist(struct vty *vty, const char *name) | |
656 | { | |
657 | struct route_map *route_map = route_map_lookup_by_name(name); | |
658 | ||
659 | if (!route_map) | |
660 | if (vty_shell_serv(vty)) | |
661 | vty_out(vty, "The route-map '%s' does not exist.\n", name); | |
662 | ||
663 | return route_map; | |
664 | } | |
665 | ||
7096e938 | 666 | int route_map_mark_updated(const char *name) |
518f0eb1 | 667 | { |
d62a17ae | 668 | struct route_map *map; |
669 | int ret = -1; | |
670 | struct route_map tmp_map; | |
518f0eb1 | 671 | |
d62a17ae | 672 | if (!name) |
673 | return (ret); | |
a6e0d253 | 674 | |
d62a17ae | 675 | map = route_map_lookup_by_name(name); |
a6e0d253 | 676 | |
e4694d0d DS |
677 | /* If we did not find the routemap with deleted=false try again |
678 | * with deleted=true | |
d62a17ae | 679 | */ |
680 | if (!map) { | |
681 | memset(&tmp_map, 0, sizeof(struct route_map)); | |
682 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
e4694d0d | 683 | tmp_map.deleted = true; |
d62a17ae | 684 | map = hash_lookup(route_map_master_hash, &tmp_map); |
685 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
686 | } | |
a6e0d253 | 687 | |
d62a17ae | 688 | if (map) { |
e4694d0d | 689 | map->to_be_processed = true; |
d62a17ae | 690 | ret = 0; |
691 | } | |
518f0eb1 | 692 | |
d62a17ae | 693 | return (ret); |
518f0eb1 DS |
694 | } |
695 | ||
69f02720 | 696 | static int route_map_clear_updated(struct route_map *map) |
518f0eb1 | 697 | { |
d62a17ae | 698 | int ret = -1; |
518f0eb1 | 699 | |
d62a17ae | 700 | if (map) { |
e4694d0d | 701 | map->to_be_processed = false; |
d62a17ae | 702 | if (map->deleted) |
703 | route_map_free_map(map); | |
704 | } | |
518f0eb1 | 705 | |
d62a17ae | 706 | return (ret); |
518f0eb1 DS |
707 | } |
708 | ||
718e3744 | 709 | /* Lookup route map. If there isn't route map create one and return |
710 | it. */ | |
a7282663 | 711 | struct route_map *route_map_get(const char *name) |
718e3744 | 712 | { |
d62a17ae | 713 | struct route_map *map; |
718e3744 | 714 | |
d62a17ae | 715 | map = route_map_lookup_by_name(name); |
716 | if (map == NULL) | |
717 | map = route_map_add(name); | |
518f0eb1 | 718 | |
d62a17ae | 719 | return map; |
718e3744 | 720 | } |
721 | ||
46a69f10 | 722 | void route_map_walk_update_list(void (*route_map_update_fn)(char *name)) |
518f0eb1 | 723 | { |
d62a17ae | 724 | struct route_map *node; |
725 | struct route_map *nnode = NULL; | |
518f0eb1 | 726 | |
d62a17ae | 727 | for (node = route_map_master.head; node; node = nnode) { |
728 | if (node->to_be_processed) { | |
729 | /* DD: Should we add any thread yield code here */ | |
730 | route_map_update_fn(node->name); | |
731 | nnode = node->next; | |
732 | route_map_clear_updated(node); | |
733 | } else | |
734 | nnode = node->next; | |
518f0eb1 | 735 | } |
518f0eb1 DS |
736 | } |
737 | ||
718e3744 | 738 | /* Return route map's type string. */ |
d62a17ae | 739 | static const char *route_map_type_str(enum route_map_type type) |
740 | { | |
741 | switch (type) { | |
742 | case RMAP_PERMIT: | |
743 | return "permit"; | |
744 | break; | |
745 | case RMAP_DENY: | |
746 | return "deny"; | |
747 | break; | |
ba1707ca | 748 | case RMAP_ANY: |
d62a17ae | 749 | return ""; |
750 | break; | |
751 | } | |
4255dbe9 DS |
752 | |
753 | return ""; | |
718e3744 | 754 | } |
755 | ||
b68885f9 | 756 | static const char *route_map_cmd_result_str(enum route_map_cmd_result_t res) |
e3ab8170 AD |
757 | { |
758 | switch (res) { | |
759 | case RMAP_MATCH: | |
760 | return "match"; | |
e3ab8170 AD |
761 | case RMAP_NOMATCH: |
762 | return "no match"; | |
b68885f9 LK |
763 | case RMAP_NOOP: |
764 | return "noop"; | |
e3ab8170 AD |
765 | case RMAP_ERROR: |
766 | return "error"; | |
767 | case RMAP_OKAY: | |
768 | return "okay"; | |
769 | } | |
770 | ||
771 | return "invalid"; | |
772 | } | |
773 | ||
b68885f9 LK |
774 | static const char *route_map_result_str(route_map_result_t res) |
775 | { | |
776 | switch (res) { | |
777 | case RMAP_DENYMATCH: | |
778 | return "deny"; | |
779 | case RMAP_PERMITMATCH: | |
780 | return "permit"; | |
781 | } | |
782 | ||
783 | return "invalid"; | |
784 | } | |
785 | ||
5510e83b | 786 | /* show route-map */ |
d62a17ae | 787 | static void vty_show_route_map_entry(struct vty *vty, struct route_map *map) |
788 | { | |
789 | struct route_map_index *index; | |
790 | struct route_map_rule *rule; | |
791 | ||
279b0607 | 792 | vty_out(vty, "route-map: %s Invoked: %" PRIu64 "\n", |
1fa30509 | 793 | map->name, map->applied - map->applied_clear); |
d62a17ae | 794 | |
795 | for (index = map->head; index; index = index->next) { | |
279b0607 DS |
796 | vty_out(vty, " %s, sequence %d Invoked %" PRIu64 "\n", |
797 | route_map_type_str(index->type), index->pref, | |
1fa30509 | 798 | index->applied - index->applied_clear); |
d62a17ae | 799 | |
800 | /* Description */ | |
801 | if (index->description) | |
802 | vty_out(vty, " Description:\n %s\n", | |
803 | index->description); | |
804 | ||
805 | /* Match clauses */ | |
806 | vty_out(vty, " Match clauses:\n"); | |
807 | for (rule = index->match_list.head; rule; rule = rule->next) | |
808 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
809 | rule->rule_str); | |
810 | ||
811 | vty_out(vty, " Set clauses:\n"); | |
812 | for (rule = index->set_list.head; rule; rule = rule->next) | |
813 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
814 | rule->rule_str); | |
815 | ||
816 | /* Call clause */ | |
817 | vty_out(vty, " Call clause:\n"); | |
818 | if (index->nextrm) | |
819 | vty_out(vty, " Call %s\n", index->nextrm); | |
820 | ||
821 | /* Exit Policy */ | |
822 | vty_out(vty, " Action:\n"); | |
823 | if (index->exitpolicy == RMAP_GOTO) | |
824 | vty_out(vty, " Goto %d\n", index->nextpref); | |
825 | else if (index->exitpolicy == RMAP_NEXT) | |
826 | vty_out(vty, " Continue to next entry\n"); | |
827 | else if (index->exitpolicy == RMAP_EXIT) | |
828 | vty_out(vty, " Exit routemap\n"); | |
829 | } | |
830 | } | |
831 | ||
78b1bb5f QY |
832 | static int sort_route_map(const void **map1, const void **map2) |
833 | { | |
834 | const struct route_map *m1 = *map1; | |
835 | const struct route_map *m2 = *map2; | |
836 | ||
837 | return strcmp(m1->name, m2->name); | |
838 | } | |
839 | ||
d62a17ae | 840 | static int vty_show_route_map(struct vty *vty, const char *name) |
841 | { | |
842 | struct route_map *map; | |
843 | ||
279b0607 DS |
844 | vty_out(vty, "%s:\n", frr_protonameinst); |
845 | ||
d62a17ae | 846 | if (name) { |
847 | map = route_map_lookup_by_name(name); | |
848 | ||
849 | if (map) { | |
850 | vty_show_route_map_entry(vty, map); | |
851 | return CMD_SUCCESS; | |
852 | } else { | |
853 | vty_out(vty, "%s: 'route-map %s' not found\n", | |
854 | frr_protonameinst, name); | |
855 | return CMD_SUCCESS; | |
856 | } | |
857 | } else { | |
78b1bb5f QY |
858 | |
859 | struct list *maplist = list_new(); | |
860 | struct listnode *ln; | |
861 | ||
d62a17ae | 862 | for (map = route_map_master.head; map; map = map->next) |
78b1bb5f QY |
863 | listnode_add(maplist, map); |
864 | ||
865 | list_sort(maplist, sort_route_map); | |
866 | ||
867 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
868 | vty_show_route_map_entry(vty, map); | |
869 | ||
6a154c88 | 870 | list_delete(&maplist); |
d62a17ae | 871 | } |
872 | return CMD_SUCCESS; | |
5510e83b | 873 | } |
874 | ||
4a2a09d0 | 875 | /* Unused route map details */ |
876 | static int vty_show_unused_route_map(struct vty *vty) | |
877 | { | |
878 | struct list *maplist = list_new(); | |
879 | struct listnode *ln; | |
880 | struct route_map *map; | |
881 | ||
882 | for (map = route_map_master.head; map; map = map->next) { | |
883 | /* If use_count is zero, No protocol is using this routemap. | |
884 | * so adding to the list. | |
885 | */ | |
886 | if (!map->use_count) | |
887 | listnode_add(maplist, map); | |
888 | } | |
889 | ||
890 | if (maplist->count > 0) { | |
891 | vty_out(vty, "\n%s:\n", frr_protonameinst); | |
892 | list_sort(maplist, sort_route_map); | |
893 | ||
894 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
895 | vty_show_route_map_entry(vty, map); | |
896 | } else { | |
897 | vty_out(vty, "\n%s: None\n", frr_protonameinst); | |
898 | } | |
899 | ||
900 | list_delete(&maplist); | |
901 | return CMD_SUCCESS; | |
902 | } | |
5510e83b | 903 | |
718e3744 | 904 | /* New route map allocation. Please note route map's name must be |
905 | specified. */ | |
d62a17ae | 906 | static struct route_map_index *route_map_index_new(void) |
718e3744 | 907 | { |
d62a17ae | 908 | struct route_map_index *new; |
718e3744 | 909 | |
d62a17ae | 910 | new = XCALLOC(MTYPE_ROUTE_MAP_INDEX, sizeof(struct route_map_index)); |
911 | new->exitpolicy = RMAP_EXIT; /* Default to Cisco-style */ | |
54a35ff4 | 912 | TAILQ_INIT(&new->rhclist); |
d62a17ae | 913 | QOBJ_REG(new, route_map_index); |
914 | return new; | |
718e3744 | 915 | } |
916 | ||
917 | /* Free route map index. */ | |
a7282663 | 918 | void route_map_index_delete(struct route_map_index *index, int notify) |
718e3744 | 919 | { |
d62a17ae | 920 | struct route_map_rule *rule; |
718e3744 | 921 | |
d62a17ae | 922 | QOBJ_UNREG(index); |
e80e7cce | 923 | |
e3ab8170 AD |
924 | if (rmap_debug) |
925 | zlog_debug("Deleting route-map %s sequence %d", | |
926 | index->map->name, index->pref); | |
927 | ||
54a35ff4 RZ |
928 | /* Free route map northbound hook contexts. */ |
929 | while (!TAILQ_EMPTY(&index->rhclist)) | |
930 | routemap_hook_context_free(TAILQ_FIRST(&index->rhclist)); | |
931 | ||
d62a17ae | 932 | /* Free route match. */ |
933 | while ((rule = index->match_list.head) != NULL) | |
934 | route_map_rule_delete(&index->match_list, rule); | |
718e3744 | 935 | |
d62a17ae | 936 | /* Free route set. */ |
937 | while ((rule = index->set_list.head) != NULL) | |
938 | route_map_rule_delete(&index->set_list, rule); | |
718e3744 | 939 | |
d62a17ae | 940 | /* Remove index from route map list. */ |
941 | if (index->next) | |
942 | index->next->prev = index->prev; | |
943 | else | |
944 | index->map->tail = index->prev; | |
718e3744 | 945 | |
d62a17ae | 946 | if (index->prev) |
947 | index->prev->next = index->next; | |
948 | else | |
949 | index->map->head = index->next; | |
718e3744 | 950 | |
d62a17ae | 951 | /* Free 'char *nextrm' if not NULL */ |
0a22ddfb | 952 | XFREE(MTYPE_ROUTE_MAP_NAME, index->nextrm); |
fee0f4c6 | 953 | |
d62a17ae | 954 | /* Execute event hook. */ |
955 | if (route_map_master.event_hook && notify) { | |
097b5973 | 956 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 957 | route_map_notify_dependencies(index->map->name, |
958 | RMAP_EVENT_CALL_ADDED); | |
959 | } | |
960 | XFREE(MTYPE_ROUTE_MAP_INDEX, index); | |
718e3744 | 961 | } |
962 | ||
963 | /* Lookup index from route map. */ | |
d62a17ae | 964 | static struct route_map_index *route_map_index_lookup(struct route_map *map, |
965 | enum route_map_type type, | |
966 | int pref) | |
718e3744 | 967 | { |
d62a17ae | 968 | struct route_map_index *index; |
718e3744 | 969 | |
d62a17ae | 970 | for (index = map->head; index; index = index->next) |
971 | if ((index->type == type || type == RMAP_ANY) | |
972 | && index->pref == pref) | |
973 | return index; | |
974 | return NULL; | |
718e3744 | 975 | } |
976 | ||
977 | /* Add new index to route map. */ | |
8cc4198f | 978 | static struct route_map_index * |
d62a17ae | 979 | route_map_index_add(struct route_map *map, enum route_map_type type, int pref) |
980 | { | |
981 | struct route_map_index *index; | |
982 | struct route_map_index *point; | |
983 | ||
984 | /* Allocate new route map inex. */ | |
985 | index = route_map_index_new(); | |
986 | index->map = map; | |
987 | index->type = type; | |
988 | index->pref = pref; | |
989 | ||
990 | /* Compare preference. */ | |
991 | for (point = map->head; point; point = point->next) | |
992 | if (point->pref >= pref) | |
993 | break; | |
994 | ||
995 | if (map->head == NULL) { | |
996 | map->head = map->tail = index; | |
997 | } else if (point == NULL) { | |
998 | index->prev = map->tail; | |
999 | map->tail->next = index; | |
1000 | map->tail = index; | |
1001 | } else if (point == map->head) { | |
1002 | index->next = map->head; | |
1003 | map->head->prev = index; | |
1004 | map->head = index; | |
1005 | } else { | |
1006 | index->next = point; | |
1007 | index->prev = point->prev; | |
1008 | if (point->prev) | |
1009 | point->prev->next = index; | |
1010 | point->prev = index; | |
1011 | } | |
1012 | ||
1013 | /* Execute event hook. */ | |
1014 | if (route_map_master.event_hook) { | |
097b5973 | 1015 | (*route_map_master.event_hook)(map->name); |
d62a17ae | 1016 | route_map_notify_dependencies(map->name, RMAP_EVENT_CALL_ADDED); |
1017 | } | |
e3ab8170 AD |
1018 | |
1019 | if (rmap_debug) | |
1020 | zlog_debug("Route-map %s add sequence %d, type: %s", | |
1021 | map->name, pref, route_map_type_str(type)); | |
1022 | ||
d62a17ae | 1023 | return index; |
718e3744 | 1024 | } |
1025 | ||
1026 | /* Get route map index. */ | |
a7282663 | 1027 | struct route_map_index * |
d62a17ae | 1028 | route_map_index_get(struct route_map *map, enum route_map_type type, int pref) |
718e3744 | 1029 | { |
d62a17ae | 1030 | struct route_map_index *index; |
718e3744 | 1031 | |
d62a17ae | 1032 | index = route_map_index_lookup(map, RMAP_ANY, pref); |
1033 | if (index && index->type != type) { | |
1034 | /* Delete index from route map. */ | |
1035 | route_map_index_delete(index, 1); | |
1036 | index = NULL; | |
1037 | } | |
1038 | if (index == NULL) | |
1039 | index = route_map_index_add(map, type, pref); | |
1040 | return index; | |
718e3744 | 1041 | } |
1042 | ||
1043 | /* New route map rule */ | |
d62a17ae | 1044 | static struct route_map_rule *route_map_rule_new(void) |
718e3744 | 1045 | { |
d62a17ae | 1046 | struct route_map_rule *new; |
718e3744 | 1047 | |
d62a17ae | 1048 | new = XCALLOC(MTYPE_ROUTE_MAP_RULE, sizeof(struct route_map_rule)); |
1049 | return new; | |
718e3744 | 1050 | } |
6b0655a2 | 1051 | |
718e3744 | 1052 | /* Install rule command to the match list. */ |
364deb04 | 1053 | void route_map_install_match(const struct route_map_rule_cmd *cmd) |
718e3744 | 1054 | { |
364deb04 | 1055 | vector_set(route_match_vec, (void *)cmd); |
718e3744 | 1056 | } |
1057 | ||
1058 | /* Install rule command to the set list. */ | |
364deb04 | 1059 | void route_map_install_set(const struct route_map_rule_cmd *cmd) |
718e3744 | 1060 | { |
364deb04 | 1061 | vector_set(route_set_vec, (void *)cmd); |
718e3744 | 1062 | } |
1063 | ||
1064 | /* Lookup rule command from match list. */ | |
364deb04 | 1065 | static const struct route_map_rule_cmd *route_map_lookup_match(const char *name) |
718e3744 | 1066 | { |
d62a17ae | 1067 | unsigned int i; |
364deb04 | 1068 | const struct route_map_rule_cmd *rule; |
718e3744 | 1069 | |
d62a17ae | 1070 | for (i = 0; i < vector_active(route_match_vec); i++) |
1071 | if ((rule = vector_slot(route_match_vec, i)) != NULL) | |
1072 | if (strcmp(rule->str, name) == 0) | |
1073 | return rule; | |
1074 | return NULL; | |
718e3744 | 1075 | } |
1076 | ||
1077 | /* Lookup rule command from set list. */ | |
364deb04 | 1078 | static const struct route_map_rule_cmd *route_map_lookup_set(const char *name) |
718e3744 | 1079 | { |
d62a17ae | 1080 | unsigned int i; |
364deb04 | 1081 | const struct route_map_rule_cmd *rule; |
718e3744 | 1082 | |
d62a17ae | 1083 | for (i = 0; i < vector_active(route_set_vec); i++) |
1084 | if ((rule = vector_slot(route_set_vec, i)) != NULL) | |
1085 | if (strcmp(rule->str, name) == 0) | |
1086 | return rule; | |
1087 | return NULL; | |
718e3744 | 1088 | } |
1089 | ||
1090 | /* Add match and set rule to rule list. */ | |
d62a17ae | 1091 | static void route_map_rule_add(struct route_map_rule_list *list, |
1092 | struct route_map_rule *rule) | |
718e3744 | 1093 | { |
d62a17ae | 1094 | rule->next = NULL; |
1095 | rule->prev = list->tail; | |
1096 | if (list->tail) | |
1097 | list->tail->next = rule; | |
1098 | else | |
1099 | list->head = rule; | |
1100 | list->tail = rule; | |
718e3744 | 1101 | } |
1102 | ||
1103 | /* Delete rule from rule list. */ | |
d62a17ae | 1104 | static void route_map_rule_delete(struct route_map_rule_list *list, |
1105 | struct route_map_rule *rule) | |
718e3744 | 1106 | { |
d62a17ae | 1107 | if (rule->cmd->func_free) |
1108 | (*rule->cmd->func_free)(rule->value); | |
718e3744 | 1109 | |
0a22ddfb | 1110 | XFREE(MTYPE_ROUTE_MAP_RULE_STR, rule->rule_str); |
718e3744 | 1111 | |
d62a17ae | 1112 | if (rule->next) |
1113 | rule->next->prev = rule->prev; | |
1114 | else | |
1115 | list->tail = rule->prev; | |
1116 | if (rule->prev) | |
1117 | rule->prev->next = rule->next; | |
1118 | else | |
1119 | list->head = rule->next; | |
718e3744 | 1120 | |
d62a17ae | 1121 | XFREE(MTYPE_ROUTE_MAP_RULE, rule); |
718e3744 | 1122 | } |
1123 | ||
1124 | /* strcmp wrapper function which don't crush even argument is NULL. */ | |
d62a17ae | 1125 | static int rulecmp(const char *dst, const char *src) |
1126 | { | |
1127 | if (dst == NULL) { | |
1128 | if (src == NULL) | |
1129 | return 0; | |
1130 | else | |
1131 | return 1; | |
1132 | } else { | |
1133 | if (src == NULL) | |
1134 | return 1; | |
1135 | else | |
1136 | return strcmp(dst, src); | |
1137 | } | |
718e3744 | 1138 | return 1; |
718e3744 | 1139 | } |
1140 | ||
518f0eb1 DS |
1141 | /* Use this to return the already specified argument for this match. This is |
1142 | * useful to get the specified argument with a route map match rule when the | |
1143 | * rule is being deleted and the argument is not provided. | |
1144 | */ | |
d62a17ae | 1145 | const char *route_map_get_match_arg(struct route_map_index *index, |
1146 | const char *match_name) | |
518f0eb1 | 1147 | { |
d62a17ae | 1148 | struct route_map_rule *rule; |
364deb04 | 1149 | const struct route_map_rule_cmd *cmd; |
518f0eb1 | 1150 | |
d62a17ae | 1151 | /* First lookup rule for add match statement. */ |
1152 | cmd = route_map_lookup_match(match_name); | |
1153 | if (cmd == NULL) | |
1154 | return NULL; | |
518f0eb1 | 1155 | |
d62a17ae | 1156 | for (rule = index->match_list.head; rule; rule = rule->next) |
1157 | if (rule->cmd == cmd && rule->rule_str != NULL) | |
1158 | return (rule->rule_str); | |
518f0eb1 | 1159 | |
95f7965d | 1160 | return NULL; |
518f0eb1 DS |
1161 | } |
1162 | ||
e2c8d6ce NT |
1163 | static route_map_event_t get_route_map_delete_event(route_map_event_t type) |
1164 | { | |
1165 | switch (type) { | |
1166 | case RMAP_EVENT_CALL_ADDED: | |
1167 | return RMAP_EVENT_CALL_DELETED; | |
1168 | case RMAP_EVENT_PLIST_ADDED: | |
1169 | return RMAP_EVENT_PLIST_DELETED; | |
1170 | case RMAP_EVENT_CLIST_ADDED: | |
1171 | return RMAP_EVENT_CLIST_DELETED; | |
1172 | case RMAP_EVENT_ECLIST_ADDED: | |
1173 | return RMAP_EVENT_ECLIST_DELETED; | |
1174 | case RMAP_EVENT_LLIST_ADDED: | |
1175 | return RMAP_EVENT_LLIST_DELETED; | |
1176 | case RMAP_EVENT_ASLIST_ADDED: | |
1177 | return RMAP_EVENT_ASLIST_DELETED; | |
1178 | case RMAP_EVENT_FILTER_ADDED: | |
1179 | return RMAP_EVENT_FILTER_DELETED; | |
1180 | case RMAP_EVENT_SET_ADDED: | |
1181 | case RMAP_EVENT_SET_DELETED: | |
1182 | case RMAP_EVENT_SET_REPLACED: | |
1183 | case RMAP_EVENT_MATCH_ADDED: | |
1184 | case RMAP_EVENT_MATCH_DELETED: | |
1185 | case RMAP_EVENT_MATCH_REPLACED: | |
1186 | case RMAP_EVENT_INDEX_ADDED: | |
1187 | case RMAP_EVENT_INDEX_DELETED: | |
1188 | case RMAP_EVENT_CALL_DELETED: | |
1189 | case RMAP_EVENT_PLIST_DELETED: | |
1190 | case RMAP_EVENT_CLIST_DELETED: | |
1191 | case RMAP_EVENT_ECLIST_DELETED: | |
1192 | case RMAP_EVENT_LLIST_DELETED: | |
1193 | case RMAP_EVENT_ASLIST_DELETED: | |
1194 | case RMAP_EVENT_FILTER_DELETED: | |
1195 | /* This function returns the appropriate 'deleted' event type | |
1196 | * for every 'added' event type passed to this function. | |
1197 | * This is done only for named entities used in the | |
1198 | * route-map match commands. | |
1199 | * This function is not to be invoked for any of the other event | |
1200 | * types. | |
1201 | */ | |
1202 | assert(0); | |
1203 | } | |
f232dd29 DS |
1204 | |
1205 | assert(0); | |
1206 | /* | |
1207 | * Return to make c happy but if we get here something has gone | |
1208 | * terribly terribly wrong, so yes this return makes no sense. | |
1209 | */ | |
1210 | return RMAP_EVENT_CALL_ADDED; | |
e2c8d6ce NT |
1211 | } |
1212 | ||
718e3744 | 1213 | /* Add match statement to route map. */ |
cda7187d DS |
1214 | enum rmap_compile_rets route_map_add_match(struct route_map_index *index, |
1215 | const char *match_name, | |
1216 | const char *match_arg, | |
1217 | route_map_event_t type) | |
d62a17ae | 1218 | { |
1219 | struct route_map_rule *rule; | |
1220 | struct route_map_rule *next; | |
364deb04 | 1221 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1222 | void *compile; |
e2c8d6ce | 1223 | int8_t delete_rmap_event_type = 0; |
909f3d56 | 1224 | const char *rule_key; |
d62a17ae | 1225 | |
1226 | /* First lookup rule for add match statement. */ | |
1227 | cmd = route_map_lookup_match(match_name); | |
1228 | if (cmd == NULL) | |
1229 | return RMAP_RULE_MISSING; | |
1230 | ||
1231 | /* Next call compile function for this match statement. */ | |
1232 | if (cmd->func_compile) { | |
1233 | compile = (*cmd->func_compile)(match_arg); | |
1234 | if (compile == NULL) | |
1235 | return RMAP_COMPILE_ERROR; | |
1236 | } else | |
1237 | compile = NULL; | |
909f3d56 | 1238 | /* use the compiled results if applicable */ |
1239 | if (compile && cmd->func_get_rmap_rule_key) | |
1240 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1241 | (compile); | |
1242 | else | |
1243 | rule_key = match_arg; | |
d62a17ae | 1244 | |
1245 | /* If argument is completely same ignore it. */ | |
1246 | for (rule = index->match_list.head; rule; rule = next) { | |
1247 | next = rule->next; | |
1248 | if (rule->cmd == cmd) { | |
6c3247bd NT |
1249 | /* If the configured route-map match rule is exactly |
1250 | * the same as the existing configuration then, | |
1251 | * ignore the duplicate configuration. | |
1252 | */ | |
1253 | if (strcmp(match_arg, rule->rule_str) == 0) { | |
1254 | if (cmd->func_free) | |
1255 | (*cmd->func_free)(compile); | |
e2c8d6ce | 1256 | |
909f3d56 | 1257 | return RMAP_COMPILE_SUCCESS; |
e2c8d6ce NT |
1258 | } |
1259 | ||
1260 | /* Remove the dependency of the route-map on the rule | |
1261 | * that is being replaced. | |
1262 | */ | |
1263 | if (type >= RMAP_EVENT_CALL_ADDED) { | |
1264 | delete_rmap_event_type = | |
1265 | get_route_map_delete_event(type); | |
1266 | route_map_upd8_dependency( | |
1267 | delete_rmap_event_type, | |
909f3d56 | 1268 | rule_key, |
e2c8d6ce | 1269 | index->map->name); |
6c3247bd NT |
1270 | } |
1271 | ||
d62a17ae | 1272 | route_map_rule_delete(&index->match_list, rule); |
d62a17ae | 1273 | } |
718e3744 | 1274 | } |
718e3744 | 1275 | |
d62a17ae | 1276 | /* Add new route map match rule. */ |
1277 | rule = route_map_rule_new(); | |
1278 | rule->cmd = cmd; | |
1279 | rule->value = compile; | |
1280 | if (match_arg) | |
1281 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, match_arg); | |
1282 | else | |
1283 | rule->rule_str = NULL; | |
718e3744 | 1284 | |
d62a17ae | 1285 | /* Add new route match rule to linked list. */ |
1286 | route_map_rule_add(&index->match_list, rule); | |
718e3744 | 1287 | |
d62a17ae | 1288 | /* Execute event hook. */ |
1289 | if (route_map_master.event_hook) { | |
097b5973 | 1290 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1291 | route_map_notify_dependencies(index->map->name, |
1292 | RMAP_EVENT_CALL_ADDED); | |
1293 | } | |
909f3d56 | 1294 | if (type != RMAP_EVENT_MATCH_ADDED) |
1295 | route_map_upd8_dependency(type, rule_key, index->map->name); | |
718e3744 | 1296 | |
9ca25fed | 1297 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1298 | } |
1299 | ||
1300 | /* Delete specified route match rule. */ | |
cda7187d DS |
1301 | enum rmap_compile_rets route_map_delete_match(struct route_map_index *index, |
1302 | const char *match_name, | |
909f3d56 | 1303 | const char *match_arg, |
1304 | route_map_event_t type) | |
d62a17ae | 1305 | { |
1306 | struct route_map_rule *rule; | |
364deb04 | 1307 | const struct route_map_rule_cmd *cmd; |
909f3d56 | 1308 | const char *rule_key; |
d62a17ae | 1309 | |
1310 | cmd = route_map_lookup_match(match_name); | |
1311 | if (cmd == NULL) | |
e5b4b49e | 1312 | return RMAP_RULE_MISSING; |
d62a17ae | 1313 | |
1314 | for (rule = index->match_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1315 | if (rule->cmd == cmd && (rulecmp(rule->rule_str, match_arg) == 0 |
1316 | || match_arg == NULL)) { | |
d62a17ae | 1317 | /* Execute event hook. */ |
1318 | if (route_map_master.event_hook) { | |
097b5973 | 1319 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1320 | route_map_notify_dependencies( |
1321 | index->map->name, | |
1322 | RMAP_EVENT_CALL_ADDED); | |
1323 | } | |
909f3d56 | 1324 | if (cmd->func_get_rmap_rule_key) |
1325 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1326 | (rule->value); | |
1327 | else | |
1328 | rule_key = match_arg; | |
1329 | ||
1330 | if (type != RMAP_EVENT_MATCH_DELETED && rule_key) | |
1331 | route_map_upd8_dependency(type, rule_key, | |
1332 | index->map->name); | |
1333 | ||
1334 | route_map_rule_delete(&index->match_list, rule); | |
e5b4b49e | 1335 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1336 | } |
1337 | /* Can't find matched rule. */ | |
e5b4b49e | 1338 | return RMAP_RULE_MISSING; |
718e3744 | 1339 | } |
1340 | ||
1341 | /* Add route-map set statement to the route map. */ | |
cda7187d DS |
1342 | enum rmap_compile_rets route_map_add_set(struct route_map_index *index, |
1343 | const char *set_name, | |
1344 | const char *set_arg) | |
d62a17ae | 1345 | { |
1346 | struct route_map_rule *rule; | |
1347 | struct route_map_rule *next; | |
364deb04 | 1348 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1349 | void *compile; |
d62a17ae | 1350 | |
1351 | cmd = route_map_lookup_set(set_name); | |
1352 | if (cmd == NULL) | |
1353 | return RMAP_RULE_MISSING; | |
1354 | ||
1355 | /* Next call compile function for this match statement. */ | |
1356 | if (cmd->func_compile) { | |
1357 | compile = (*cmd->func_compile)(set_arg); | |
1358 | if (compile == NULL) | |
1359 | return RMAP_COMPILE_ERROR; | |
1360 | } else | |
1361 | compile = NULL; | |
1362 | ||
1363 | /* Add by WJL. if old set command of same kind exist, delete it first | |
1364 | to ensure only one set command of same kind exist under a | |
1365 | route_map_index. */ | |
1366 | for (rule = index->set_list.head; rule; rule = next) { | |
1367 | next = rule->next; | |
4255dbe9 | 1368 | if (rule->cmd == cmd) |
d62a17ae | 1369 | route_map_rule_delete(&index->set_list, rule); |
d62a17ae | 1370 | } |
1371 | ||
1372 | /* Add new route map match rule. */ | |
1373 | rule = route_map_rule_new(); | |
1374 | rule->cmd = cmd; | |
1375 | rule->value = compile; | |
1376 | if (set_arg) | |
1377 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, set_arg); | |
1378 | else | |
1379 | rule->rule_str = NULL; | |
1380 | ||
1381 | /* Add new route match rule to linked list. */ | |
1382 | route_map_rule_add(&index->set_list, rule); | |
1383 | ||
1384 | /* Execute event hook. */ | |
1385 | if (route_map_master.event_hook) { | |
097b5973 | 1386 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1387 | route_map_notify_dependencies(index->map->name, |
1388 | RMAP_EVENT_CALL_ADDED); | |
718e3744 | 1389 | } |
9ca25fed | 1390 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1391 | } |
1392 | ||
1393 | /* Delete route map set rule. */ | |
cda7187d DS |
1394 | enum rmap_compile_rets route_map_delete_set(struct route_map_index *index, |
1395 | const char *set_name, | |
1396 | const char *set_arg) | |
d62a17ae | 1397 | { |
1398 | struct route_map_rule *rule; | |
364deb04 | 1399 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1400 | |
1401 | cmd = route_map_lookup_set(set_name); | |
1402 | if (cmd == NULL) | |
e5b4b49e | 1403 | return RMAP_RULE_MISSING; |
d62a17ae | 1404 | |
1405 | for (rule = index->set_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1406 | if ((rule->cmd == cmd) && (rulecmp(rule->rule_str, set_arg) == 0 |
1407 | || set_arg == NULL)) { | |
d62a17ae | 1408 | route_map_rule_delete(&index->set_list, rule); |
1409 | /* Execute event hook. */ | |
1410 | if (route_map_master.event_hook) { | |
097b5973 | 1411 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1412 | route_map_notify_dependencies( |
1413 | index->map->name, | |
1414 | RMAP_EVENT_CALL_ADDED); | |
1415 | } | |
e5b4b49e | 1416 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1417 | } |
1418 | /* Can't find matched rule. */ | |
e5b4b49e | 1419 | return RMAP_RULE_MISSING; |
718e3744 | 1420 | } |
1421 | ||
b68885f9 LK |
1422 | static enum route_map_cmd_result_t |
1423 | route_map_apply_match(struct route_map_rule_list *match_list, | |
1424 | const struct prefix *prefix, route_map_object_t type, | |
1425 | void *object) | |
1426 | { | |
1427 | enum route_map_cmd_result_t ret = RMAP_NOMATCH; | |
1428 | struct route_map_rule *match; | |
1429 | bool is_matched = false; | |
1430 | ||
1431 | ||
1432 | /* Check all match rule and if there is no match rule, go to the | |
1433 | set statement. */ | |
1434 | if (!match_list->head) | |
1435 | ret = RMAP_MATCH; | |
1436 | else { | |
1437 | for (match = match_list->head; match; match = match->next) { | |
1438 | /* | |
1439 | * Try each match statement. If any match does not | |
1440 | * return RMAP_MATCH or RMAP_NOOP, return. | |
1441 | * Otherwise continue on to next match statement. | |
1442 | * All match statements must MATCH for | |
1443 | * end-result to be a match. | |
1444 | * (Exception:If match stmts result in a mix of | |
1445 | * MATCH/NOOP, then also end-result is a match) | |
1446 | * If all result in NOOP, end-result is NOOP. | |
1447 | */ | |
1448 | ret = (*match->cmd->func_apply)(match->value, prefix, | |
1449 | type, object); | |
1450 | ||
1451 | /* | |
1452 | * If the consolidated result of func_apply is: | |
1453 | * ----------------------------------------------- | |
1454 | * | MATCH | NOMATCH | NOOP | Final Result | | |
1455 | * ------------------------------------------------ | |
1456 | * | yes | yes | yes | NOMATCH | | |
1457 | * | no | no | yes | NOOP | | |
1458 | * | yes | no | yes | MATCH | | |
1459 | * | no | yes | yes | NOMATCH | | |
1460 | * |----------------------------------------------- | |
1461 | * | |
1462 | * Traditionally, all rules within route-map | |
1463 | * should match for it to MATCH. | |
1464 | * If there are noops within the route-map rules, | |
1465 | * it follows the above matrix. | |
1466 | * | |
1467 | * Eg: route-map rm1 permit 10 | |
1468 | * match rule1 | |
1469 | * match rule2 | |
1470 | * match rule3 | |
1471 | * .... | |
1472 | * route-map rm1 permit 20 | |
1473 | * match ruleX | |
1474 | * match ruleY | |
1475 | * ... | |
1476 | */ | |
1477 | ||
1478 | switch (ret) { | |
1479 | case RMAP_MATCH: | |
1480 | is_matched = true; | |
1481 | break; | |
1482 | ||
1483 | case RMAP_NOMATCH: | |
1484 | return ret; | |
1485 | ||
1486 | case RMAP_NOOP: | |
1487 | if (is_matched) | |
1488 | ret = RMAP_MATCH; | |
1489 | break; | |
1490 | ||
1491 | default: | |
1492 | break; | |
1493 | } | |
1494 | ||
1495 | } | |
1496 | } | |
1497 | return ret; | |
1498 | } | |
1499 | ||
3bf1c917 | 1500 | /* Apply route map's each index to the object. |
1501 | ||
1502 | The matrix for a route-map looks like this: | |
1503 | (note, this includes the description for the "NEXT" | |
1504 | and "GOTO" frobs now | |
d62a17ae | 1505 | |
b68885f9 LK |
1506 | | Match | No Match | No op |
1507 | |-----------|--------------|------- | |
1508 | permit | action | cont | cont. | |
1509 | | | default:deny | default:permit | |
1510 | -------------------+----------------------- | |
1511 | | deny | cont | cont. | |
1512 | deny | | default:deny | default:permit | |
1513 | |-----------|--------------|-------- | |
d62a17ae | 1514 | |
fee0f4c6 | 1515 | action) |
1516 | -Apply Set statements, accept route | |
1517 | -If Call statement is present jump to the specified route-map, if it | |
d62a17ae | 1518 | denies the route we finish. |
fee0f4c6 | 1519 | -If NEXT is specified, goto NEXT statement |
1520 | -If GOTO is specified, goto the first clause where pref > nextpref | |
1521 | -If nothing is specified, do as Cisco and finish | |
1522 | deny) | |
1523 | -Route is denied by route-map. | |
1524 | cont) | |
1525 | -Goto Next index | |
d62a17ae | 1526 | |
3bf1c917 | 1527 | If we get no matches after we've processed all updates, then the route |
1528 | is dropped too. | |
d62a17ae | 1529 | |
fee0f4c6 | 1530 | Some notes on the new "CALL", "NEXT" and "GOTO" |
1531 | call WORD - If this clause is matched, then the set statements | |
d62a17ae | 1532 | are executed and then we jump to route-map 'WORD'. If |
1533 | this route-map denies the route, we finish, in other | |
1534 | case we | |
1535 | do whatever the exit policy (EXIT, NEXT or GOTO) tells. | |
3bf1c917 | 1536 | on-match next - If this clause is matched, then the set statements |
d62a17ae | 1537 | are executed and then we drop through to the next clause |
3bf1c917 | 1538 | on-match goto n - If this clause is matched, then the set statments |
d62a17ae | 1539 | are executed and then we goto the nth clause, or the |
1540 | first clause greater than this. In order to ensure | |
1541 | route-maps *always* exit, you cannot jump backwards. | |
1542 | Sorry ;) | |
1543 | ||
3bf1c917 | 1544 | We need to make sure our route-map processing matches the above |
718e3744 | 1545 | */ |
123214ef MS |
1546 | route_map_result_t route_map_apply(struct route_map *map, |
1547 | const struct prefix *prefix, | |
d62a17ae | 1548 | route_map_object_t type, void *object) |
1549 | { | |
1550 | static int recursion = 0; | |
b68885f9 LK |
1551 | enum route_map_cmd_result_t match_ret = RMAP_NOMATCH; |
1552 | route_map_result_t ret = RMAP_PERMITMATCH; | |
d62a17ae | 1553 | struct route_map_index *index; |
1554 | struct route_map_rule *set; | |
e3ab8170 | 1555 | char buf[PREFIX_STRLEN]; |
d62a17ae | 1556 | |
1557 | if (recursion > RMAP_RECURSION_LIMIT) { | |
040c7c3a | 1558 | flog_warn( |
450971aa | 1559 | EC_LIB_RMAP_RECURSION_LIMIT, |
d62a17ae | 1560 | "route-map recursion limit (%d) reached, discarding route", |
1561 | RMAP_RECURSION_LIMIT); | |
1562 | recursion = 0; | |
1563 | return RMAP_DENYMATCH; | |
1564 | } | |
1565 | ||
b68885f9 | 1566 | if (map == NULL || map->head == NULL) { |
e3ab8170 AD |
1567 | ret = RMAP_DENYMATCH; |
1568 | goto route_map_apply_end; | |
1569 | } | |
d62a17ae | 1570 | |
279b0607 | 1571 | map->applied++; |
d62a17ae | 1572 | for (index = map->head; index; index = index->next) { |
1573 | /* Apply this index. */ | |
279b0607 | 1574 | index->applied++; |
b68885f9 LK |
1575 | match_ret = route_map_apply_match(&index->match_list, prefix, |
1576 | type, object); | |
d62a17ae | 1577 | |
e3ab8170 AD |
1578 | if (rmap_debug) { |
1579 | zlog_debug("Route-map: %s, sequence: %d, prefix: %s, result: %s", | |
1580 | map->name, index->pref, | |
1581 | prefix2str(prefix, buf, sizeof(buf)), | |
b68885f9 | 1582 | route_map_cmd_result_str(match_ret)); |
e3ab8170 AD |
1583 | } |
1584 | ||
d62a17ae | 1585 | /* Now we apply the matrix from above */ |
b68885f9 LK |
1586 | if (match_ret == RMAP_NOOP) |
1587 | /* | |
1588 | * Do not change the return value. Retain the previous | |
1589 | * return value. Previous values can be: | |
1590 | * 1)permitmatch (if a nomatch was never | |
1591 | * seen before in this route-map.) | |
1592 | * 2)denymatch (if a nomatch was seen earlier in one | |
1593 | * of the previous sequences) | |
1594 | */ | |
1595 | ||
1596 | /* | |
1597 | * 'cont' from matrix - continue to next route-map | |
1598 | * sequence | |
1599 | */ | |
d62a17ae | 1600 | continue; |
b68885f9 LK |
1601 | else if (match_ret == RMAP_NOMATCH) { |
1602 | ||
1603 | /* | |
1604 | * The return value is now changed to denymatch. | |
1605 | * So from here on out, even if we see more noops, | |
1606 | * we retain this return value and return this | |
1607 | * eventually if there are no matches. | |
1608 | */ | |
1609 | ret = RMAP_DENYMATCH; | |
1610 | ||
1611 | /* | |
1612 | * 'cont' from matrix - continue to next route-map | |
1613 | * sequence | |
1614 | */ | |
1615 | continue; | |
1616 | } else if (match_ret == RMAP_MATCH) { | |
d62a17ae | 1617 | if (index->type == RMAP_PERMIT) |
1618 | /* 'action' */ | |
1619 | { | |
b68885f9 LK |
1620 | /* Match succeeded, rmap is of type permit */ |
1621 | ret = RMAP_PERMITMATCH; | |
1622 | ||
d62a17ae | 1623 | /* permit+match must execute sets */ |
1624 | for (set = index->set_list.head; set; | |
1625 | set = set->next) | |
b68885f9 LK |
1626 | /* |
1627 | * set cmds return RMAP_OKAY or | |
1628 | * RMAP_ERROR. We do not care if | |
1629 | * set succeeded or not. So, ignore | |
1630 | * return code. | |
1631 | */ | |
1632 | (void) (*set->cmd->func_apply)( | |
2789041a LK |
1633 | set->value, prefix, type, |
1634 | object); | |
d62a17ae | 1635 | |
1636 | /* Call another route-map if available */ | |
1637 | if (index->nextrm) { | |
1638 | struct route_map *nextrm = | |
1639 | route_map_lookup_by_name( | |
1640 | index->nextrm); | |
1641 | ||
1642 | if (nextrm) /* Target route-map found, | |
1643 | jump to it */ | |
1644 | { | |
1645 | recursion++; | |
1646 | ret = route_map_apply( | |
1647 | nextrm, prefix, type, | |
1648 | object); | |
1649 | recursion--; | |
1650 | } | |
1651 | ||
1652 | /* If nextrm returned 'deny', finish. */ | |
1653 | if (ret == RMAP_DENYMATCH) | |
e3ab8170 | 1654 | goto route_map_apply_end; |
d62a17ae | 1655 | } |
1656 | ||
1657 | switch (index->exitpolicy) { | |
1658 | case RMAP_EXIT: | |
e3ab8170 | 1659 | goto route_map_apply_end; |
d62a17ae | 1660 | case RMAP_NEXT: |
1661 | continue; | |
1662 | case RMAP_GOTO: { | |
1663 | /* Find the next clause to jump to */ | |
1664 | struct route_map_index *next = | |
1665 | index->next; | |
1666 | int nextpref = index->nextpref; | |
1667 | ||
1668 | while (next && next->pref < nextpref) { | |
1669 | index = next; | |
1670 | next = next->next; | |
1671 | } | |
1672 | if (next == NULL) { | |
1673 | /* No clauses match! */ | |
e3ab8170 | 1674 | goto route_map_apply_end; |
d62a17ae | 1675 | } |
1676 | } | |
1677 | } | |
1678 | } else if (index->type == RMAP_DENY) | |
1679 | /* 'deny' */ | |
1680 | { | |
e3ab8170 AD |
1681 | ret = RMAP_DENYMATCH; |
1682 | goto route_map_apply_end; | |
d62a17ae | 1683 | } |
1684 | } | |
1685 | } | |
e3ab8170 AD |
1686 | |
1687 | route_map_apply_end: | |
1688 | if (rmap_debug) { | |
1689 | zlog_debug("Route-map: %s, prefix: %s, result: %s", | |
1690 | (map ? map->name : "null"), | |
1691 | prefix2str(prefix, buf, sizeof(buf)), | |
1692 | route_map_result_str(ret)); | |
1693 | } | |
1694 | ||
1695 | return (ret); | |
d62a17ae | 1696 | } |
1697 | ||
1698 | void route_map_add_hook(void (*func)(const char *)) | |
1699 | { | |
1700 | route_map_master.add_hook = func; | |
1701 | } | |
1702 | ||
1703 | void route_map_delete_hook(void (*func)(const char *)) | |
1704 | { | |
1705 | route_map_master.delete_hook = func; | |
1706 | } | |
1707 | ||
097b5973 | 1708 | void route_map_event_hook(void (*func)(const char *name)) |
d62a17ae | 1709 | { |
1710 | route_map_master.event_hook = func; | |
718e3744 | 1711 | } |
1712 | ||
518f0eb1 | 1713 | /* Routines for route map dependency lists and dependency processing */ |
74df8d6d | 1714 | static bool route_map_rmap_hash_cmp(const void *p1, const void *p2) |
518f0eb1 | 1715 | { |
e2c8d6ce NT |
1716 | return strcmp(((const struct route_map_dep_data *)p1)->rname, |
1717 | ((const struct route_map_dep_data *)p2)->rname) | |
1718 | == 0; | |
518f0eb1 DS |
1719 | } |
1720 | ||
74df8d6d | 1721 | static bool route_map_dep_hash_cmp(const void *p1, const void *p2) |
518f0eb1 DS |
1722 | { |
1723 | ||
d62a17ae | 1724 | return (strcmp(((const struct route_map_dep *)p1)->dep_name, |
1725 | (const char *)p2) | |
1726 | == 0); | |
518f0eb1 DS |
1727 | } |
1728 | ||
e3b78da8 | 1729 | static void route_map_clear_reference(struct hash_bucket *bucket, void *arg) |
518f0eb1 | 1730 | { |
e2c8d6ce NT |
1731 | struct route_map_dep *dep = bucket->data; |
1732 | struct route_map_dep_data *dep_data = NULL, tmp_dep_data; | |
518f0eb1 | 1733 | |
1fae5ff2 | 1734 | if (arg) { |
e2c8d6ce NT |
1735 | memset(&tmp_dep_data, 0, sizeof(struct route_map_dep_data)); |
1736 | tmp_dep_data.rname = arg; | |
1737 | dep_data = hash_release(dep->dep_rmap_hash, | |
1738 | &tmp_dep_data); | |
1739 | if (dep_data) { | |
1740 | XFREE(MTYPE_ROUTE_MAP_NAME, dep_data->rname); | |
1741 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, dep_data); | |
d62a17ae | 1742 | } |
1743 | if (!dep->dep_rmap_hash->count) { | |
1744 | dep = hash_release(dep->this_hash, | |
1745 | (void *)dep->dep_name); | |
1746 | hash_free(dep->dep_rmap_hash); | |
1747 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
1748 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
1749 | } | |
518f0eb1 | 1750 | } |
d62a17ae | 1751 | } |
1752 | ||
1753 | static void route_map_clear_all_references(char *rmap_name) | |
1754 | { | |
1755 | int i; | |
1756 | ||
1757 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { | |
1758 | hash_iterate(route_map_dep_hash[i], route_map_clear_reference, | |
1759 | (void *)rmap_name); | |
518f0eb1 | 1760 | } |
518f0eb1 DS |
1761 | } |
1762 | ||
e2c8d6ce NT |
1763 | static unsigned int route_map_dep_data_hash_make_key(const void *p) |
1764 | { | |
1765 | const struct route_map_dep_data *dep_data = p; | |
1766 | ||
1767 | return string_hash_make(dep_data->rname); | |
1768 | } | |
1769 | ||
d62a17ae | 1770 | static void *route_map_dep_hash_alloc(void *p) |
518f0eb1 | 1771 | { |
d62a17ae | 1772 | char *dep_name = (char *)p; |
1773 | struct route_map_dep *dep_entry; | |
1774 | ||
1775 | dep_entry = XCALLOC(MTYPE_ROUTE_MAP_DEP, sizeof(struct route_map_dep)); | |
1776 | dep_entry->dep_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
996c9314 | 1777 | dep_entry->dep_rmap_hash = |
e2c8d6ce | 1778 | hash_create_size(8, route_map_dep_data_hash_make_key, |
996c9314 | 1779 | route_map_rmap_hash_cmp, "Route Map Dep Hash"); |
d62a17ae | 1780 | dep_entry->this_hash = NULL; |
1781 | ||
e2c8d6ce | 1782 | return dep_entry; |
d62a17ae | 1783 | } |
518f0eb1 | 1784 | |
d62a17ae | 1785 | static void *route_map_name_hash_alloc(void *p) |
1786 | { | |
e2c8d6ce NT |
1787 | struct route_map_dep_data *dep_data = NULL, *tmp_dep_data = NULL; |
1788 | ||
1789 | dep_data = XCALLOC(MTYPE_ROUTE_MAP_DEP_DATA, | |
1790 | sizeof(struct route_map_dep_data)); | |
1791 | tmp_dep_data = p; | |
1792 | dep_data->rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, tmp_dep_data->rname); | |
1793 | return dep_data; | |
518f0eb1 DS |
1794 | } |
1795 | ||
d8b87afe | 1796 | static unsigned int route_map_dep_hash_make_key(const void *p) |
518f0eb1 | 1797 | { |
d62a17ae | 1798 | return (string_hash_make((char *)p)); |
1799 | } | |
518f0eb1 | 1800 | |
e3b78da8 | 1801 | static void route_map_print_dependency(struct hash_bucket *bucket, void *data) |
d62a17ae | 1802 | { |
e2c8d6ce NT |
1803 | struct route_map_dep_data *dep_data = bucket->data; |
1804 | char *rmap_name = dep_data->rname; | |
1805 | char *dep_name = data; | |
518f0eb1 | 1806 | |
1fae5ff2 DS |
1807 | zlog_debug("%s: Dependency for %s: %s", __FUNCTION__, dep_name, |
1808 | rmap_name); | |
518f0eb1 DS |
1809 | } |
1810 | ||
d62a17ae | 1811 | static int route_map_dep_update(struct hash *dephash, const char *dep_name, |
1812 | const char *rmap_name, route_map_event_t type) | |
518f0eb1 | 1813 | { |
d62a17ae | 1814 | struct route_map_dep *dep = NULL; |
d62a17ae | 1815 | char *dname, *rname; |
1816 | int ret = 0; | |
e2c8d6ce NT |
1817 | struct route_map_dep_data *dep_data = NULL, *ret_dep_data = NULL; |
1818 | struct route_map_dep_data tmp_dep_data; | |
d62a17ae | 1819 | |
1820 | dname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
1821 | rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
1822 | ||
1823 | switch (type) { | |
1824 | case RMAP_EVENT_PLIST_ADDED: | |
1825 | case RMAP_EVENT_CLIST_ADDED: | |
1826 | case RMAP_EVENT_ECLIST_ADDED: | |
1827 | case RMAP_EVENT_ASLIST_ADDED: | |
1828 | case RMAP_EVENT_LLIST_ADDED: | |
1829 | case RMAP_EVENT_CALL_ADDED: | |
1830 | case RMAP_EVENT_FILTER_ADDED: | |
1831 | if (rmap_debug) | |
e3ab8170 AD |
1832 | zlog_debug("Adding dependency for filter %s in route-map %s", |
1833 | dep_name, rmap_name); | |
d62a17ae | 1834 | dep = (struct route_map_dep *)hash_get( |
1835 | dephash, dname, route_map_dep_hash_alloc); | |
1836 | if (!dep) { | |
1837 | ret = -1; | |
1838 | goto out; | |
1839 | } | |
1840 | ||
1841 | if (!dep->this_hash) | |
1842 | dep->this_hash = dephash; | |
1843 | ||
e2c8d6ce NT |
1844 | memset(&tmp_dep_data, 0, sizeof(struct route_map_dep_data)); |
1845 | tmp_dep_data.rname = rname; | |
1846 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
1847 | if (!dep_data) | |
1848 | dep_data = hash_get(dep->dep_rmap_hash, &tmp_dep_data, | |
1849 | route_map_name_hash_alloc); | |
1850 | ||
1851 | dep_data->refcnt++; | |
d62a17ae | 1852 | break; |
1853 | case RMAP_EVENT_PLIST_DELETED: | |
1854 | case RMAP_EVENT_CLIST_DELETED: | |
1855 | case RMAP_EVENT_ECLIST_DELETED: | |
1856 | case RMAP_EVENT_ASLIST_DELETED: | |
1857 | case RMAP_EVENT_LLIST_DELETED: | |
1858 | case RMAP_EVENT_CALL_DELETED: | |
1859 | case RMAP_EVENT_FILTER_DELETED: | |
1860 | if (rmap_debug) | |
e3ab8170 AD |
1861 | zlog_debug("Deleting dependency for filter %s in route-map %s", |
1862 | dep_name, rmap_name); | |
d62a17ae | 1863 | dep = (struct route_map_dep *)hash_get(dephash, dname, NULL); |
1864 | if (!dep) { | |
1865 | goto out; | |
1866 | } | |
1867 | ||
e2c8d6ce NT |
1868 | memset(&tmp_dep_data, 0, sizeof(struct route_map_dep_data)); |
1869 | tmp_dep_data.rname = rname; | |
1870 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
1871 | dep_data->refcnt--; | |
1872 | ||
1873 | if (!dep_data->refcnt) { | |
1874 | ret_dep_data = hash_release(dep->dep_rmap_hash, | |
1875 | &tmp_dep_data); | |
1876 | if (ret_dep_data) { | |
1877 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
1878 | ret_dep_data->rname); | |
1879 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, ret_dep_data); | |
1880 | } | |
1881 | } | |
d62a17ae | 1882 | |
1883 | if (!dep->dep_rmap_hash->count) { | |
1884 | dep = hash_release(dephash, dname); | |
1885 | hash_free(dep->dep_rmap_hash); | |
1886 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
1887 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
d62a17ae | 1888 | } |
1889 | break; | |
ba1707ca DS |
1890 | case RMAP_EVENT_SET_ADDED: |
1891 | case RMAP_EVENT_SET_DELETED: | |
1892 | case RMAP_EVENT_SET_REPLACED: | |
1893 | case RMAP_EVENT_MATCH_ADDED: | |
1894 | case RMAP_EVENT_MATCH_DELETED: | |
1895 | case RMAP_EVENT_MATCH_REPLACED: | |
1896 | case RMAP_EVENT_INDEX_ADDED: | |
1897 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 1898 | break; |
1899 | } | |
1900 | ||
1901 | if (dep) { | |
1902 | if (rmap_debug) | |
1903 | hash_iterate(dep->dep_rmap_hash, | |
1904 | route_map_print_dependency, dname); | |
1905 | } | |
1906 | ||
1907 | out: | |
1908 | XFREE(MTYPE_ROUTE_MAP_NAME, rname); | |
1909 | XFREE(MTYPE_ROUTE_MAP_NAME, dname); | |
1910 | return ret; | |
1911 | } | |
1912 | ||
1913 | static struct hash *route_map_get_dep_hash(route_map_event_t event) | |
1914 | { | |
1915 | struct hash *upd8_hash = NULL; | |
1916 | ||
1917 | switch (event) { | |
1918 | case RMAP_EVENT_PLIST_ADDED: | |
1919 | case RMAP_EVENT_PLIST_DELETED: | |
1920 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_PLIST]; | |
1921 | break; | |
1922 | case RMAP_EVENT_CLIST_ADDED: | |
1923 | case RMAP_EVENT_CLIST_DELETED: | |
1924 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_CLIST]; | |
1925 | break; | |
1926 | case RMAP_EVENT_ECLIST_ADDED: | |
1927 | case RMAP_EVENT_ECLIST_DELETED: | |
1928 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ECLIST]; | |
1929 | break; | |
1930 | case RMAP_EVENT_ASLIST_ADDED: | |
1931 | case RMAP_EVENT_ASLIST_DELETED: | |
1932 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ASPATH]; | |
1933 | break; | |
1934 | case RMAP_EVENT_LLIST_ADDED: | |
1935 | case RMAP_EVENT_LLIST_DELETED: | |
1936 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_LCLIST]; | |
1937 | break; | |
1938 | case RMAP_EVENT_CALL_ADDED: | |
1939 | case RMAP_EVENT_CALL_DELETED: | |
5ed2e47b | 1940 | case RMAP_EVENT_MATCH_ADDED: |
1941 | case RMAP_EVENT_MATCH_DELETED: | |
d62a17ae | 1942 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_RMAP]; |
1943 | break; | |
1944 | case RMAP_EVENT_FILTER_ADDED: | |
1945 | case RMAP_EVENT_FILTER_DELETED: | |
1946 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_FILTER]; | |
1947 | break; | |
ba1707ca DS |
1948 | /* |
1949 | * Should we actually be ignoring these? | |
1950 | * I am not sure but at this point in time, let | |
1951 | * us get them into this switch and we can peel | |
1952 | * them into the appropriate place in the future | |
1953 | */ | |
1954 | case RMAP_EVENT_SET_ADDED: | |
1955 | case RMAP_EVENT_SET_DELETED: | |
1956 | case RMAP_EVENT_SET_REPLACED: | |
1957 | case RMAP_EVENT_MATCH_REPLACED: | |
1958 | case RMAP_EVENT_INDEX_ADDED: | |
1959 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 1960 | upd8_hash = NULL; |
1961 | break; | |
1962 | } | |
1963 | return (upd8_hash); | |
518f0eb1 DS |
1964 | } |
1965 | ||
e3b78da8 | 1966 | static void route_map_process_dependency(struct hash_bucket *bucket, void *data) |
518f0eb1 | 1967 | { |
e2c8d6ce NT |
1968 | struct route_map_dep_data *dep_data = NULL; |
1969 | char *rmap_name = NULL; | |
1970 | ||
1971 | dep_data = bucket->data; | |
1972 | rmap_name = dep_data->rname; | |
d62a17ae | 1973 | |
1fae5ff2 | 1974 | if (rmap_debug) |
e3ab8170 | 1975 | zlog_debug("Notifying %s of dependency", rmap_name); |
1fae5ff2 | 1976 | if (route_map_master.event_hook) |
097b5973 | 1977 | (*route_map_master.event_hook)(rmap_name); |
518f0eb1 DS |
1978 | } |
1979 | ||
d62a17ae | 1980 | void route_map_upd8_dependency(route_map_event_t type, const char *arg, |
1981 | const char *rmap_name) | |
518f0eb1 | 1982 | { |
d62a17ae | 1983 | struct hash *upd8_hash = NULL; |
518f0eb1 | 1984 | |
fdf823db | 1985 | if ((upd8_hash = route_map_get_dep_hash(type))) { |
d62a17ae | 1986 | route_map_dep_update(upd8_hash, arg, rmap_name, type); |
fdf823db NT |
1987 | |
1988 | if (type == RMAP_EVENT_CALL_ADDED) { | |
1989 | /* Execute hook. */ | |
1990 | if (route_map_master.add_hook) | |
1991 | (*route_map_master.add_hook)(rmap_name); | |
1992 | } else if (type == RMAP_EVENT_CALL_DELETED) { | |
1993 | /* Execute hook. */ | |
1994 | if (route_map_master.delete_hook) | |
1995 | (*route_map_master.delete_hook)(rmap_name); | |
1996 | } | |
1997 | } | |
518f0eb1 DS |
1998 | } |
1999 | ||
d62a17ae | 2000 | void route_map_notify_dependencies(const char *affected_name, |
2001 | route_map_event_t event) | |
518f0eb1 | 2002 | { |
d62a17ae | 2003 | struct route_map_dep *dep; |
2004 | struct hash *upd8_hash; | |
2005 | char *name; | |
2006 | ||
2007 | if (!affected_name) | |
2008 | return; | |
2009 | ||
2010 | name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, affected_name); | |
2011 | ||
2012 | if ((upd8_hash = route_map_get_dep_hash(event)) == NULL) { | |
2013 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
2014 | return; | |
518f0eb1 | 2015 | } |
d62a17ae | 2016 | |
2017 | dep = (struct route_map_dep *)hash_get(upd8_hash, name, NULL); | |
2018 | if (dep) { | |
2019 | if (!dep->this_hash) | |
2020 | dep->this_hash = upd8_hash; | |
2021 | ||
e3ab8170 AD |
2022 | if (rmap_debug) |
2023 | zlog_debug("Filter %s updated", dep->dep_name); | |
d62a17ae | 2024 | hash_iterate(dep->dep_rmap_hash, route_map_process_dependency, |
2025 | (void *)event); | |
2026 | } | |
2027 | ||
2028 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
518f0eb1 DS |
2029 | } |
2030 | ||
82f97584 | 2031 | |
718e3744 | 2032 | /* VTY related functions. */ |
1fa30509 DS |
2033 | static void clear_route_map_helper(struct route_map *map) |
2034 | { | |
2035 | struct route_map_index *index; | |
2036 | ||
2037 | map->applied_clear = map->applied; | |
2038 | for (index = map->head; index; index = index->next) | |
2039 | index->applied_clear = index->applied; | |
2040 | } | |
2041 | ||
2042 | DEFUN (rmap_clear_counters, | |
2043 | rmap_clear_counters_cmd, | |
2044 | "clear route-map counters [WORD]", | |
2045 | CLEAR_STR | |
2046 | "route-map information\n" | |
2047 | "counters associated with the specified route-map\n" | |
2048 | "route-map name\n") | |
2049 | { | |
2050 | int idx_word = 2; | |
2051 | struct route_map *map; | |
2052 | ||
2053 | const char *name = (argc == 3 ) ? argv[idx_word]->arg : NULL; | |
2054 | ||
2055 | if (name) { | |
2056 | map = route_map_lookup_by_name(name); | |
2057 | ||
2058 | if (map) | |
2059 | clear_route_map_helper(map); | |
2060 | else { | |
2061 | vty_out(vty, "%s: 'route-map %s' not found\n", | |
2062 | frr_protonameinst, name); | |
2063 | return CMD_SUCCESS; | |
2064 | } | |
2065 | } else { | |
2066 | for (map = route_map_master.head; map; map = map->next) | |
2067 | clear_route_map_helper(map); | |
2068 | } | |
2069 | ||
2070 | return CMD_SUCCESS; | |
2071 | ||
2072 | } | |
5510e83b | 2073 | |
6d2729e3 | 2074 | DEFUN (rmap_show_name, |
5510e83b | 2075 | rmap_show_name_cmd, |
7514fb77 | 2076 | "show route-map [WORD]", |
5510e83b | 2077 | SHOW_STR |
2078 | "route-map information\n" | |
2079 | "route-map name\n") | |
2080 | { | |
d62a17ae | 2081 | int idx_word = 2; |
2082 | const char *name = (argc == 3) ? argv[idx_word]->arg : NULL; | |
2083 | return vty_show_route_map(vty, name); | |
5510e83b | 2084 | } |
2085 | ||
4a2a09d0 | 2086 | DEFUN (rmap_show_unused, |
2087 | rmap_show_unused_cmd, | |
2088 | "show route-map-unused", | |
2089 | SHOW_STR | |
2090 | "unused route-map information\n") | |
2091 | { | |
2092 | return vty_show_unused_route_map(vty); | |
2093 | } | |
2094 | ||
e3ab8170 AD |
2095 | DEFUN (debug_rmap, |
2096 | debug_rmap_cmd, | |
2097 | "debug route-map", | |
2098 | DEBUG_STR | |
2099 | "Debug option set for route-maps\n") | |
2100 | { | |
2101 | rmap_debug = true; | |
2102 | return CMD_SUCCESS; | |
2103 | } | |
2104 | ||
2105 | DEFUN (no_debug_rmap, | |
2106 | no_debug_rmap_cmd, | |
2107 | "no debug route-map", | |
2108 | NO_STR | |
2109 | DEBUG_STR | |
2110 | "Debug option set for route-maps\n") | |
2111 | { | |
2112 | rmap_debug = false; | |
2113 | return CMD_SUCCESS; | |
2114 | } | |
2115 | ||
2116 | /* Debug node. */ | |
2117 | static struct cmd_node rmap_debug_node = {RMAP_DEBUG_NODE, "", 1}; | |
2118 | ||
718e3744 | 2119 | /* Configuration write function. */ |
e3ab8170 AD |
2120 | static int rmap_config_write_debug(struct vty *vty) |
2121 | { | |
2122 | int write = 0; | |
2123 | ||
2124 | if (rmap_debug) { | |
2125 | vty_out(vty, "debug route-map\n"); | |
2126 | write++; | |
2127 | } | |
2128 | ||
2129 | return write; | |
2130 | } | |
2131 | ||
dc9ffce8 CF |
2132 | /* Common route map rules */ |
2133 | ||
d62a17ae | 2134 | void *route_map_rule_tag_compile(const char *arg) |
dc9ffce8 | 2135 | { |
d62a17ae | 2136 | unsigned long int tmp; |
2137 | char *endptr; | |
2138 | route_tag_t *tag; | |
dc9ffce8 | 2139 | |
d62a17ae | 2140 | errno = 0; |
2141 | tmp = strtoul(arg, &endptr, 0); | |
2142 | if (arg[0] == '\0' || *endptr != '\0' || errno || tmp > ROUTE_TAG_MAX) | |
2143 | return NULL; | |
dc9ffce8 | 2144 | |
d62a17ae | 2145 | tag = XMALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(*tag)); |
2146 | *tag = tmp; | |
dc9ffce8 | 2147 | |
d62a17ae | 2148 | return tag; |
dc9ffce8 CF |
2149 | } |
2150 | ||
d62a17ae | 2151 | void route_map_rule_tag_free(void *rule) |
dc9ffce8 | 2152 | { |
d62a17ae | 2153 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
dc9ffce8 CF |
2154 | } |
2155 | ||
d62a17ae | 2156 | void route_map_finish(void) |
9df78e7c | 2157 | { |
d62a17ae | 2158 | int i; |
9df78e7c | 2159 | |
d62a17ae | 2160 | vector_free(route_match_vec); |
2161 | route_match_vec = NULL; | |
2162 | vector_free(route_set_vec); | |
2163 | route_set_vec = NULL; | |
9df78e7c | 2164 | |
8619629a DS |
2165 | /* |
2166 | * All protocols are setting these to NULL | |
2167 | * by default on shutdown( route_map_finish ) | |
2168 | * Why are we making them do this work? | |
2169 | */ | |
2170 | route_map_master.add_hook = NULL; | |
2171 | route_map_master.delete_hook = NULL; | |
2172 | route_map_master.event_hook = NULL; | |
2173 | ||
d62a17ae | 2174 | /* cleanup route_map */ |
2175 | while (route_map_master.head) { | |
2176 | struct route_map *map = route_map_master.head; | |
e4694d0d | 2177 | map->to_be_processed = false; |
d62a17ae | 2178 | route_map_delete(map); |
2179 | } | |
9df78e7c | 2180 | |
d62a17ae | 2181 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
2182 | hash_free(route_map_dep_hash[i]); | |
2183 | route_map_dep_hash[i] = NULL; | |
2184 | } | |
9df78e7c | 2185 | |
d62a17ae | 2186 | hash_free(route_map_master_hash); |
2187 | route_map_master_hash = NULL; | |
9df78e7c DS |
2188 | } |
2189 | ||
4a2a09d0 | 2190 | /* Increment the use_count counter while attaching the route map */ |
2191 | void route_map_counter_increment(struct route_map *map) | |
2192 | { | |
2193 | if (map) | |
2194 | map->use_count++; | |
2195 | } | |
2196 | ||
2197 | /* Decrement the use_count counter while detaching the route map. */ | |
2198 | void route_map_counter_decrement(struct route_map *map) | |
2199 | { | |
2200 | if (map) { | |
2201 | if (map->use_count <= 0) | |
2202 | return; | |
2203 | map->use_count--; | |
2204 | } | |
2205 | } | |
2206 | ||
718e3744 | 2207 | /* Initialization of route map vector. */ |
d62a17ae | 2208 | void route_map_init(void) |
718e3744 | 2209 | { |
d62a17ae | 2210 | int i; |
2211 | ||
2212 | /* Make vector for match and set. */ | |
2213 | route_match_vec = vector_init(1); | |
2214 | route_set_vec = vector_init(1); | |
2215 | route_map_master_hash = | |
996c9314 | 2216 | hash_create_size(8, route_map_hash_key_make, route_map_hash_cmp, |
bd74dc61 | 2217 | "Route Map Master Hash"); |
d62a17ae | 2218 | |
2219 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) | |
996c9314 LB |
2220 | route_map_dep_hash[i] = hash_create_size( |
2221 | 8, route_map_dep_hash_make_key, route_map_dep_hash_cmp, | |
2222 | "Route Map Dep Hash"); | |
b2575bc0 | 2223 | |
e3ab8170 AD |
2224 | rmap_debug = false; |
2225 | ||
2b3e4807 | 2226 | route_map_cli_init(); |
518f0eb1 | 2227 | |
2b3e4807 | 2228 | /* Install route map top node. */ |
e3ab8170 AD |
2229 | install_node(&rmap_debug_node, rmap_config_write_debug); |
2230 | ||
d62a17ae | 2231 | /* Install route map commands. */ |
e3ab8170 AD |
2232 | install_element(CONFIG_NODE, &debug_rmap_cmd); |
2233 | install_element(CONFIG_NODE, &no_debug_rmap_cmd); | |
2234 | ||
d62a17ae | 2235 | /* Install show command */ |
1fa30509 DS |
2236 | install_element(ENABLE_NODE, &rmap_clear_counters_cmd); |
2237 | ||
d62a17ae | 2238 | install_element(ENABLE_NODE, &rmap_show_name_cmd); |
4a2a09d0 | 2239 | install_element(ENABLE_NODE, &rmap_show_unused_cmd); |
82f97584 | 2240 | |
e3ab8170 AD |
2241 | install_element(ENABLE_NODE, &debug_rmap_cmd); |
2242 | install_element(ENABLE_NODE, &no_debug_rmap_cmd); | |
718e3744 | 2243 | } |