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718e3744 | 1 | /* BGP community-list and extcommunity-list. |
896014f4 DL |
2 | * Copyright (C) 1999 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License 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 "command.h" | |
24 | #include "prefix.h" | |
25 | #include "memory.h" | |
3f9c7369 | 26 | #include "queue.h" |
039f3a34 | 27 | #include "filter.h" |
718e3744 | 28 | |
29 | #include "bgpd/bgpd.h" | |
30 | #include "bgpd/bgp_community.h" | |
31 | #include "bgpd/bgp_ecommunity.h" | |
57d187bc | 32 | #include "bgpd/bgp_lcommunity.h" |
718e3744 | 33 | #include "bgpd/bgp_aspath.h" |
34 | #include "bgpd/bgp_regex.h" | |
35 | #include "bgpd/bgp_clist.h" | |
6b0655a2 | 36 | |
718e3744 | 37 | /* Lookup master structure for community-list or |
38 | extcommunity-list. */ | |
39 | struct community_list_master * | |
d62a17ae | 40 | community_list_master_lookup(struct community_list_handler *ch, int master) |
718e3744 | 41 | { |
d62a17ae | 42 | if (ch) |
43 | switch (master) { | |
44 | case COMMUNITY_LIST_MASTER: | |
45 | return &ch->community_list; | |
46 | case EXTCOMMUNITY_LIST_MASTER: | |
47 | return &ch->extcommunity_list; | |
48 | case LARGE_COMMUNITY_LIST_MASTER: | |
49 | return &ch->lcommunity_list; | |
50 | } | |
51 | return NULL; | |
718e3744 | 52 | } |
53 | ||
54 | /* Allocate a new community list entry. */ | |
d62a17ae | 55 | static struct community_entry *community_entry_new(void) |
718e3744 | 56 | { |
d62a17ae | 57 | return XCALLOC(MTYPE_COMMUNITY_LIST_ENTRY, |
58 | sizeof(struct community_entry)); | |
718e3744 | 59 | } |
60 | ||
61 | /* Free community list entry. */ | |
d62a17ae | 62 | static void community_entry_free(struct community_entry *entry) |
718e3744 | 63 | { |
d62a17ae | 64 | switch (entry->style) { |
65 | case COMMUNITY_LIST_STANDARD: | |
66 | if (entry->u.com) | |
67 | community_free(entry->u.com); | |
68 | break; | |
69 | case LARGE_COMMUNITY_LIST_STANDARD: | |
70 | if (entry->u.lcom) | |
71 | lcommunity_free(&entry->u.lcom); | |
72 | break; | |
73 | case EXTCOMMUNITY_LIST_STANDARD: | |
74 | /* In case of standard extcommunity-list, configuration string | |
75 | is made by ecommunity_ecom2str(). */ | |
76 | if (entry->config) | |
77 | XFREE(MTYPE_ECOMMUNITY_STR, entry->config); | |
78 | if (entry->u.ecom) | |
79 | ecommunity_free(&entry->u.ecom); | |
80 | break; | |
81 | case COMMUNITY_LIST_EXPANDED: | |
82 | case EXTCOMMUNITY_LIST_EXPANDED: | |
83 | case LARGE_COMMUNITY_LIST_EXPANDED: | |
84 | if (entry->config) | |
85 | XFREE(MTYPE_COMMUNITY_LIST_CONFIG, entry->config); | |
86 | if (entry->reg) | |
87 | bgp_regex_free(entry->reg); | |
88 | default: | |
89 | break; | |
90 | } | |
91 | XFREE(MTYPE_COMMUNITY_LIST_ENTRY, entry); | |
718e3744 | 92 | } |
93 | ||
94 | /* Allocate a new community-list. */ | |
d62a17ae | 95 | static struct community_list *community_list_new(void) |
718e3744 | 96 | { |
d62a17ae | 97 | return XCALLOC(MTYPE_COMMUNITY_LIST, sizeof(struct community_list)); |
718e3744 | 98 | } |
99 | ||
100 | /* Free community-list. */ | |
d62a17ae | 101 | static void community_list_free(struct community_list *list) |
718e3744 | 102 | { |
d62a17ae | 103 | if (list->name) |
104 | XFREE(MTYPE_COMMUNITY_LIST_NAME, list->name); | |
105 | XFREE(MTYPE_COMMUNITY_LIST, list); | |
718e3744 | 106 | } |
107 | ||
94f2b392 | 108 | static struct community_list * |
d62a17ae | 109 | community_list_insert(struct community_list_handler *ch, const char *name, |
110 | int master) | |
718e3744 | 111 | { |
d62a17ae | 112 | size_t i; |
113 | long number; | |
114 | struct community_list *new; | |
115 | struct community_list *point; | |
116 | struct community_list_list *list; | |
117 | struct community_list_master *cm; | |
118 | ||
119 | /* Lookup community-list master. */ | |
120 | cm = community_list_master_lookup(ch, master); | |
121 | if (!cm) | |
122 | return NULL; | |
123 | ||
124 | /* Allocate new community_list and copy given name. */ | |
125 | new = community_list_new(); | |
126 | new->name = XSTRDUP(MTYPE_COMMUNITY_LIST_NAME, name); | |
127 | ||
128 | /* If name is made by all digit character. We treat it as | |
129 | number. */ | |
130 | for (number = 0, i = 0; i < strlen(name); i++) { | |
131 | if (isdigit((int)name[i])) | |
132 | number = (number * 10) + (name[i] - '0'); | |
133 | else | |
134 | break; | |
135 | } | |
718e3744 | 136 | |
d62a17ae | 137 | /* In case of name is all digit character */ |
138 | if (i == strlen(name)) { | |
139 | new->sort = COMMUNITY_LIST_NUMBER; | |
718e3744 | 140 | |
d62a17ae | 141 | /* Set access_list to number list. */ |
142 | list = &cm->num; | |
718e3744 | 143 | |
d62a17ae | 144 | for (point = list->head; point; point = point->next) |
145 | if (atol(point->name) >= number) | |
146 | break; | |
147 | } else { | |
148 | new->sort = COMMUNITY_LIST_STRING; | |
718e3744 | 149 | |
d62a17ae | 150 | /* Set access_list to string list. */ |
151 | list = &cm->str; | |
718e3744 | 152 | |
d62a17ae | 153 | /* Set point to insertion point. */ |
154 | for (point = list->head; point; point = point->next) | |
155 | if (strcmp(point->name, name) >= 0) | |
156 | break; | |
157 | } | |
718e3744 | 158 | |
d62a17ae | 159 | /* Link to upper list. */ |
160 | new->parent = list; | |
718e3744 | 161 | |
d62a17ae | 162 | /* In case of this is the first element of master. */ |
163 | if (list->head == NULL) { | |
164 | list->head = list->tail = new; | |
165 | return new; | |
166 | } | |
718e3744 | 167 | |
d62a17ae | 168 | /* In case of insertion is made at the tail of access_list. */ |
169 | if (point == NULL) { | |
170 | new->prev = list->tail; | |
171 | list->tail->next = new; | |
172 | list->tail = new; | |
173 | return new; | |
174 | } | |
718e3744 | 175 | |
d62a17ae | 176 | /* In case of insertion is made at the head of access_list. */ |
177 | if (point == list->head) { | |
178 | new->next = list->head; | |
179 | list->head->prev = new; | |
180 | list->head = new; | |
181 | return new; | |
182 | } | |
718e3744 | 183 | |
d62a17ae | 184 | /* Insertion is made at middle of the access_list. */ |
185 | new->next = point; | |
186 | new->prev = point->prev; | |
718e3744 | 187 | |
d62a17ae | 188 | if (point->prev) |
189 | point->prev->next = new; | |
190 | point->prev = new; | |
718e3744 | 191 | |
d62a17ae | 192 | return new; |
718e3744 | 193 | } |
194 | ||
d62a17ae | 195 | struct community_list *community_list_lookup(struct community_list_handler *ch, |
196 | const char *name, int master) | |
718e3744 | 197 | { |
d62a17ae | 198 | struct community_list *list; |
199 | struct community_list_master *cm; | |
718e3744 | 200 | |
d62a17ae | 201 | if (!name) |
202 | return NULL; | |
718e3744 | 203 | |
d62a17ae | 204 | cm = community_list_master_lookup(ch, master); |
205 | if (!cm) | |
206 | return NULL; | |
718e3744 | 207 | |
d62a17ae | 208 | for (list = cm->num.head; list; list = list->next) |
209 | if (strcmp(list->name, name) == 0) | |
210 | return list; | |
211 | for (list = cm->str.head; list; list = list->next) | |
212 | if (strcmp(list->name, name) == 0) | |
213 | return list; | |
718e3744 | 214 | |
d62a17ae | 215 | return NULL; |
718e3744 | 216 | } |
217 | ||
94f2b392 | 218 | static struct community_list * |
d62a17ae | 219 | community_list_get(struct community_list_handler *ch, const char *name, |
220 | int master) | |
718e3744 | 221 | { |
d62a17ae | 222 | struct community_list *list; |
718e3744 | 223 | |
d62a17ae | 224 | list = community_list_lookup(ch, name, master); |
225 | if (!list) | |
226 | list = community_list_insert(ch, name, master); | |
227 | return list; | |
718e3744 | 228 | } |
229 | ||
d62a17ae | 230 | static void community_list_delete(struct community_list *list) |
718e3744 | 231 | { |
d62a17ae | 232 | struct community_list_list *clist; |
233 | struct community_entry *entry, *next; | |
718e3744 | 234 | |
d62a17ae | 235 | for (entry = list->head; entry; entry = next) { |
236 | next = entry->next; | |
237 | community_entry_free(entry); | |
238 | } | |
718e3744 | 239 | |
d62a17ae | 240 | clist = list->parent; |
718e3744 | 241 | |
d62a17ae | 242 | if (list->next) |
243 | list->next->prev = list->prev; | |
244 | else | |
245 | clist->tail = list->prev; | |
718e3744 | 246 | |
d62a17ae | 247 | if (list->prev) |
248 | list->prev->next = list->next; | |
249 | else | |
250 | clist->head = list->next; | |
718e3744 | 251 | |
d62a17ae | 252 | community_list_free(list); |
718e3744 | 253 | } |
254 | ||
d62a17ae | 255 | static int community_list_empty_p(struct community_list *list) |
718e3744 | 256 | { |
d62a17ae | 257 | return (list->head == NULL && list->tail == NULL) ? 1 : 0; |
718e3744 | 258 | } |
6b0655a2 | 259 | |
718e3744 | 260 | /* Add community-list entry to the list. */ |
d62a17ae | 261 | static void community_list_entry_add(struct community_list *list, |
262 | struct community_entry *entry) | |
718e3744 | 263 | { |
d62a17ae | 264 | entry->next = NULL; |
265 | entry->prev = list->tail; | |
266 | ||
267 | if (list->tail) | |
268 | list->tail->next = entry; | |
269 | else | |
270 | list->head = entry; | |
271 | list->tail = entry; | |
718e3744 | 272 | } |
273 | ||
274 | /* Delete community-list entry from the list. */ | |
d62a17ae | 275 | static void community_list_entry_delete(struct community_list *list, |
276 | struct community_entry *entry, | |
277 | int style) | |
718e3744 | 278 | { |
d62a17ae | 279 | if (entry->next) |
280 | entry->next->prev = entry->prev; | |
281 | else | |
282 | list->tail = entry->prev; | |
718e3744 | 283 | |
d62a17ae | 284 | if (entry->prev) |
285 | entry->prev->next = entry->next; | |
286 | else | |
287 | list->head = entry->next; | |
718e3744 | 288 | |
d62a17ae | 289 | community_entry_free(entry); |
718e3744 | 290 | |
d62a17ae | 291 | if (community_list_empty_p(list)) |
292 | community_list_delete(list); | |
718e3744 | 293 | } |
294 | ||
295 | /* Lookup community-list entry from the list. */ | |
296 | static struct community_entry * | |
d62a17ae | 297 | community_list_entry_lookup(struct community_list *list, const void *arg, |
298 | int direct) | |
718e3744 | 299 | { |
d62a17ae | 300 | struct community_entry *entry; |
301 | ||
302 | for (entry = list->head; entry; entry = entry->next) { | |
303 | switch (entry->style) { | |
304 | case COMMUNITY_LIST_STANDARD: | |
305 | if (entry->direct == direct | |
306 | && community_cmp(entry->u.com, arg)) | |
307 | return entry; | |
308 | break; | |
309 | case EXTCOMMUNITY_LIST_STANDARD: | |
310 | if (entry->direct == direct | |
311 | && ecommunity_cmp(entry->u.ecom, arg)) | |
312 | return entry; | |
313 | break; | |
314 | case LARGE_COMMUNITY_LIST_STANDARD: | |
315 | if (entry->direct == direct | |
316 | && lcommunity_cmp(entry->u.lcom, arg)) | |
317 | return entry; | |
318 | break; | |
319 | case COMMUNITY_LIST_EXPANDED: | |
320 | case EXTCOMMUNITY_LIST_EXPANDED: | |
321 | case LARGE_COMMUNITY_LIST_EXPANDED: | |
322 | if (entry->direct == direct | |
323 | && strcmp(entry->config, arg) == 0) | |
324 | return entry; | |
325 | break; | |
326 | default: | |
327 | break; | |
328 | } | |
329 | } | |
330 | return NULL; | |
718e3744 | 331 | } |
6b0655a2 | 332 | |
d62a17ae | 333 | static char *community_str_get(struct community *com, int i) |
5cbea288 | 334 | { |
d62a17ae | 335 | int len; |
336 | u_int32_t comval; | |
337 | u_int16_t as; | |
338 | u_int16_t val; | |
339 | char *str; | |
340 | char *pnt; | |
341 | ||
342 | memcpy(&comval, com_nthval(com, i), sizeof(u_int32_t)); | |
343 | comval = ntohl(comval); | |
344 | ||
345 | switch (comval) { | |
346 | case COMMUNITY_INTERNET: | |
347 | len = strlen(" internet"); | |
348 | break; | |
349 | case COMMUNITY_NO_EXPORT: | |
350 | len = strlen(" no-export"); | |
351 | break; | |
352 | case COMMUNITY_NO_ADVERTISE: | |
353 | len = strlen(" no-advertise"); | |
354 | break; | |
355 | case COMMUNITY_LOCAL_AS: | |
356 | len = strlen(" local-AS"); | |
357 | break; | |
358 | default: | |
359 | len = strlen(" 65536:65535"); | |
360 | break; | |
361 | } | |
5cbea288 | 362 | |
d62a17ae | 363 | /* Allocate memory. */ |
364 | str = pnt = XMALLOC(MTYPE_COMMUNITY_STR, len); | |
365 | ||
366 | switch (comval) { | |
367 | case COMMUNITY_INTERNET: | |
368 | strcpy(pnt, "internet"); | |
369 | pnt += strlen("internet"); | |
370 | break; | |
371 | case COMMUNITY_NO_EXPORT: | |
372 | strcpy(pnt, "no-export"); | |
373 | pnt += strlen("no-export"); | |
374 | break; | |
375 | case COMMUNITY_NO_ADVERTISE: | |
376 | strcpy(pnt, "no-advertise"); | |
377 | pnt += strlen("no-advertise"); | |
378 | break; | |
379 | case COMMUNITY_LOCAL_AS: | |
380 | strcpy(pnt, "local-AS"); | |
381 | pnt += strlen("local-AS"); | |
382 | break; | |
383 | default: | |
384 | as = (comval >> 16) & 0xFFFF; | |
385 | val = comval & 0xFFFF; | |
386 | sprintf(pnt, "%u:%d", as, val); | |
387 | pnt += strlen(pnt); | |
388 | break; | |
389 | } | |
5cbea288 | 390 | |
d62a17ae | 391 | *pnt = '\0'; |
5cbea288 | 392 | |
d62a17ae | 393 | return str; |
5cbea288 DS |
394 | } |
395 | ||
396 | /* Internal function to perform regular expression match for | |
2acb4ac2 | 397 | * a single community. */ |
d62a17ae | 398 | static int community_regexp_include(regex_t *reg, struct community *com, int i) |
5cbea288 | 399 | { |
d62a17ae | 400 | char *str; |
401 | int rv; | |
5cbea288 | 402 | |
d62a17ae | 403 | /* When there is no communities attribute it is treated as empty string. |
404 | */ | |
405 | if (com == NULL || com->size == 0) | |
406 | str = XSTRDUP(MTYPE_COMMUNITY_STR, ""); | |
407 | else | |
408 | str = community_str_get(com, i); | |
5cbea288 | 409 | |
d62a17ae | 410 | /* Regular expression match. */ |
411 | rv = regexec(reg, str, 0, NULL, 0); | |
b84ee83b | 412 | |
d62a17ae | 413 | XFREE(MTYPE_COMMUNITY_STR, str); |
b84ee83b | 414 | |
d62a17ae | 415 | if (rv == 0) |
416 | return 1; | |
5cbea288 | 417 | |
d62a17ae | 418 | /* No match. */ |
419 | return 0; | |
5cbea288 DS |
420 | } |
421 | ||
718e3744 | 422 | /* Internal function to perform regular expression match for community |
423 | attribute. */ | |
d62a17ae | 424 | static int community_regexp_match(struct community *com, regex_t *reg) |
718e3744 | 425 | { |
d62a17ae | 426 | const char *str; |
718e3744 | 427 | |
d62a17ae | 428 | /* When there is no communities attribute it is treated as empty |
429 | string. */ | |
430 | if (com == NULL || com->size == 0) | |
431 | str = ""; | |
432 | else | |
433 | str = community_str(com); | |
718e3744 | 434 | |
d62a17ae | 435 | /* Regular expression match. */ |
436 | if (regexec(reg, str, 0, NULL, 0) == 0) | |
437 | return 1; | |
718e3744 | 438 | |
d62a17ae | 439 | /* No match. */ |
440 | return 0; | |
718e3744 | 441 | } |
442 | ||
d62a17ae | 443 | static char *lcommunity_str_get(struct lcommunity *lcom, int i) |
57d187bc | 444 | { |
d62a17ae | 445 | struct lcommunity_val lcomval; |
446 | u_int32_t globaladmin; | |
447 | u_int32_t localdata1; | |
448 | u_int32_t localdata2; | |
449 | char *str; | |
450 | u_char *ptr; | |
451 | char *pnt; | |
452 | ||
453 | ptr = lcom->val; | |
454 | ptr += (i * LCOMMUNITY_SIZE); | |
455 | ||
456 | memcpy(&lcomval, ptr, LCOMMUNITY_SIZE); | |
457 | ||
458 | /* Allocate memory. 48 bytes taken off bgp_lcommunity.c */ | |
459 | str = pnt = XMALLOC(MTYPE_LCOMMUNITY_STR, 48); | |
460 | ||
461 | ptr = (u_char *)lcomval.val; | |
462 | globaladmin = (*ptr++ << 24); | |
463 | globaladmin |= (*ptr++ << 16); | |
464 | globaladmin |= (*ptr++ << 8); | |
465 | globaladmin |= (*ptr++); | |
466 | ||
467 | localdata1 = (*ptr++ << 24); | |
468 | localdata1 |= (*ptr++ << 16); | |
469 | localdata1 |= (*ptr++ << 8); | |
470 | localdata1 |= (*ptr++); | |
471 | ||
472 | localdata2 = (*ptr++ << 24); | |
473 | localdata2 |= (*ptr++ << 16); | |
474 | localdata2 |= (*ptr++ << 8); | |
475 | localdata2 |= (*ptr++); | |
476 | ||
477 | sprintf(pnt, "%u:%u:%u", globaladmin, localdata1, localdata2); | |
478 | pnt += strlen(pnt); | |
479 | *pnt = '\0'; | |
480 | ||
481 | return str; | |
57d187bc JS |
482 | } |
483 | ||
484 | /* Internal function to perform regular expression match for | |
2acb4ac2 | 485 | * a single community. */ |
d62a17ae | 486 | static int lcommunity_regexp_include(regex_t *reg, struct lcommunity *lcom, |
487 | int i) | |
57d187bc | 488 | { |
d62a17ae | 489 | char *str; |
490 | ||
491 | /* When there is no communities attribute it is treated as empty string. | |
492 | */ | |
493 | if (lcom == NULL || lcom->size == 0) | |
494 | str = XSTRDUP(MTYPE_LCOMMUNITY_STR, ""); | |
495 | else | |
496 | str = lcommunity_str_get(lcom, i); | |
497 | ||
498 | /* Regular expression match. */ | |
499 | if (regexec(reg, str, 0, NULL, 0) == 0) { | |
500 | XFREE(MTYPE_LCOMMUNITY_STR, str); | |
501 | return 1; | |
502 | } | |
57d187bc | 503 | |
d62a17ae | 504 | XFREE(MTYPE_LCOMMUNITY_STR, str); |
505 | /* No match. */ | |
506 | return 0; | |
57d187bc JS |
507 | } |
508 | ||
d62a17ae | 509 | static int lcommunity_regexp_match(struct lcommunity *com, regex_t *reg) |
57d187bc | 510 | { |
d62a17ae | 511 | const char *str; |
57d187bc | 512 | |
d62a17ae | 513 | /* When there is no communities attribute it is treated as empty |
514 | string. */ | |
515 | if (com == NULL || com->size == 0) | |
516 | str = ""; | |
517 | else | |
518 | str = lcommunity_str(com); | |
57d187bc | 519 | |
d62a17ae | 520 | /* Regular expression match. */ |
521 | if (regexec(reg, str, 0, NULL, 0) == 0) | |
522 | return 1; | |
57d187bc | 523 | |
d62a17ae | 524 | /* No match. */ |
525 | return 0; | |
57d187bc JS |
526 | } |
527 | ||
528 | ||
d62a17ae | 529 | static int ecommunity_regexp_match(struct ecommunity *ecom, regex_t *reg) |
8708b74f | 530 | { |
d62a17ae | 531 | const char *str; |
8708b74f | 532 | |
d62a17ae | 533 | /* When there is no communities attribute it is treated as empty |
534 | string. */ | |
535 | if (ecom == NULL || ecom->size == 0) | |
536 | str = ""; | |
537 | else | |
538 | str = ecommunity_str(ecom); | |
8708b74f | 539 | |
d62a17ae | 540 | /* Regular expression match. */ |
541 | if (regexec(reg, str, 0, NULL, 0) == 0) | |
542 | return 1; | |
8708b74f | 543 | |
d62a17ae | 544 | /* No match. */ |
545 | return 0; | |
8708b74f | 546 | } |
547 | ||
ffd0c037 | 548 | #if 0 |
718e3744 | 549 | /* Delete community attribute using regular expression match. Return |
550 | modified communites attribute. */ | |
551 | static struct community * | |
8708b74f | 552 | community_regexp_delete (struct community *com, regex_t * reg) |
718e3744 | 553 | { |
554 | int i; | |
555 | u_int32_t comval; | |
556 | /* Maximum is "65535:65535" + '\0'. */ | |
557 | char c[12]; | |
fd79ac91 | 558 | const char *str; |
718e3744 | 559 | |
8708b74f | 560 | if (!com) |
718e3744 | 561 | return NULL; |
562 | ||
563 | i = 0; | |
564 | while (i < com->size) | |
565 | { | |
566 | memcpy (&comval, com_nthval (com, i), sizeof (u_int32_t)); | |
567 | comval = ntohl (comval); | |
568 | ||
569 | switch (comval) | |
8708b74f | 570 | { |
571 | case COMMUNITY_INTERNET: | |
572 | str = "internet"; | |
573 | break; | |
574 | case COMMUNITY_NO_EXPORT: | |
575 | str = "no-export"; | |
576 | break; | |
577 | case COMMUNITY_NO_ADVERTISE: | |
578 | str = "no-advertise"; | |
579 | break; | |
580 | case COMMUNITY_LOCAL_AS: | |
581 | str = "local-AS"; | |
582 | break; | |
583 | default: | |
584 | sprintf (c, "%d:%d", (comval >> 16) & 0xFFFF, comval & 0xFFFF); | |
585 | str = c; | |
586 | break; | |
587 | } | |
718e3744 | 588 | |
589 | if (regexec (reg, str, 0, NULL, 0) == 0) | |
8708b74f | 590 | community_del_val (com, com_nthval (com, i)); |
718e3744 | 591 | else |
8708b74f | 592 | i++; |
718e3744 | 593 | } |
594 | return com; | |
595 | } | |
ffd0c037 | 596 | #endif |
718e3744 | 597 | |
598 | /* When given community attribute matches to the community-list return | |
599 | 1 else return 0. */ | |
d62a17ae | 600 | int community_list_match(struct community *com, struct community_list *list) |
718e3744 | 601 | { |
d62a17ae | 602 | struct community_entry *entry; |
603 | ||
604 | for (entry = list->head; entry; entry = entry->next) { | |
605 | if (entry->any) | |
606 | return entry->direct == COMMUNITY_PERMIT ? 1 : 0; | |
607 | ||
608 | if (entry->style == COMMUNITY_LIST_STANDARD) { | |
609 | if (community_include(entry->u.com, COMMUNITY_INTERNET)) | |
610 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
611 | : 0; | |
612 | ||
613 | if (community_match(com, entry->u.com)) | |
614 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
615 | : 0; | |
616 | } else if (entry->style == COMMUNITY_LIST_EXPANDED) { | |
617 | if (community_regexp_match(com, entry->reg)) | |
618 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
619 | : 0; | |
620 | } | |
621 | } | |
622 | return 0; | |
8708b74f | 623 | } |
624 | ||
d62a17ae | 625 | int lcommunity_list_match(struct lcommunity *lcom, struct community_list *list) |
57d187bc | 626 | { |
d62a17ae | 627 | struct community_entry *entry; |
628 | ||
629 | for (entry = list->head; entry; entry = entry->next) { | |
630 | if (entry->any) | |
631 | return entry->direct == COMMUNITY_PERMIT ? 1 : 0; | |
632 | ||
633 | if (entry->style == LARGE_COMMUNITY_LIST_STANDARD) { | |
634 | if (lcommunity_match(lcom, entry->u.lcom)) | |
635 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
636 | : 0; | |
637 | } else if (entry->style == LARGE_COMMUNITY_LIST_EXPANDED) { | |
638 | if (lcommunity_regexp_match(lcom, entry->reg)) | |
639 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
640 | : 0; | |
641 | } | |
642 | } | |
643 | return 0; | |
57d187bc JS |
644 | } |
645 | ||
d62a17ae | 646 | int ecommunity_list_match(struct ecommunity *ecom, struct community_list *list) |
8708b74f | 647 | { |
d62a17ae | 648 | struct community_entry *entry; |
649 | ||
650 | for (entry = list->head; entry; entry = entry->next) { | |
651 | if (entry->any) | |
652 | return entry->direct == COMMUNITY_PERMIT ? 1 : 0; | |
653 | ||
654 | if (entry->style == EXTCOMMUNITY_LIST_STANDARD) { | |
655 | if (ecommunity_match(ecom, entry->u.ecom)) | |
656 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
657 | : 0; | |
658 | } else if (entry->style == EXTCOMMUNITY_LIST_EXPANDED) { | |
659 | if (ecommunity_regexp_match(ecom, entry->reg)) | |
660 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
661 | : 0; | |
662 | } | |
663 | } | |
664 | return 0; | |
718e3744 | 665 | } |
666 | ||
667 | /* Perform exact matching. In case of expanded community-list, do | |
668 | same thing as community_list_match(). */ | |
d62a17ae | 669 | int community_list_exact_match(struct community *com, |
670 | struct community_list *list) | |
718e3744 | 671 | { |
d62a17ae | 672 | struct community_entry *entry; |
673 | ||
674 | for (entry = list->head; entry; entry = entry->next) { | |
675 | if (entry->any) | |
676 | return entry->direct == COMMUNITY_PERMIT ? 1 : 0; | |
677 | ||
678 | if (entry->style == COMMUNITY_LIST_STANDARD) { | |
679 | if (community_include(entry->u.com, COMMUNITY_INTERNET)) | |
680 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
681 | : 0; | |
682 | ||
683 | if (community_cmp(com, entry->u.com)) | |
684 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
685 | : 0; | |
686 | } else if (entry->style == COMMUNITY_LIST_EXPANDED) { | |
687 | if (community_regexp_match(com, entry->reg)) | |
688 | return entry->direct == COMMUNITY_PERMIT ? 1 | |
689 | : 0; | |
690 | } | |
691 | } | |
692 | return 0; | |
718e3744 | 693 | } |
694 | ||
8708b74f | 695 | /* Delete all permitted communities in the list from com. */ |
d62a17ae | 696 | struct community *community_list_match_delete(struct community *com, |
697 | struct community_list *list) | |
718e3744 | 698 | { |
d62a17ae | 699 | struct community_entry *entry; |
700 | u_int32_t val; | |
701 | u_int32_t com_index_to_delete[com->size]; | |
702 | int delete_index = 0; | |
703 | int i; | |
704 | ||
705 | /* Loop over each community value and evaluate each against the | |
706 | * community-list. If we need to delete a community value add its index | |
707 | * to | |
708 | * com_index_to_delete. | |
709 | */ | |
710 | for (i = 0; i < com->size; i++) { | |
711 | val = community_val_get(com, i); | |
712 | ||
713 | for (entry = list->head; entry; entry = entry->next) { | |
714 | if (entry->any) { | |
715 | if (entry->direct == COMMUNITY_PERMIT) { | |
716 | com_index_to_delete[delete_index] = i; | |
717 | delete_index++; | |
718 | } | |
719 | break; | |
720 | } | |
721 | ||
722 | else if ((entry->style == COMMUNITY_LIST_STANDARD) | |
723 | && (community_include(entry->u.com, | |
724 | COMMUNITY_INTERNET) | |
725 | || community_include(entry->u.com, val))) { | |
726 | if (entry->direct == COMMUNITY_PERMIT) { | |
727 | com_index_to_delete[delete_index] = i; | |
728 | delete_index++; | |
729 | } | |
730 | break; | |
731 | } | |
732 | ||
733 | else if ((entry->style == COMMUNITY_LIST_EXPANDED) | |
734 | && community_regexp_include(entry->reg, com, | |
735 | i)) { | |
736 | if (entry->direct == COMMUNITY_PERMIT) { | |
737 | com_index_to_delete[delete_index] = i; | |
738 | delete_index++; | |
739 | } | |
740 | break; | |
741 | } | |
742 | } | |
743 | } | |
5cbea288 | 744 | |
d62a17ae | 745 | /* Delete all of the communities we flagged for deletion */ |
746 | for (i = delete_index - 1; i >= 0; i--) { | |
747 | val = community_val_get(com, com_index_to_delete[i]); | |
748 | community_del_val(com, &val); | |
749 | } | |
5cbea288 | 750 | |
d62a17ae | 751 | return com; |
718e3744 | 752 | } |
753 | ||
754 | /* To avoid duplicated entry in the community-list, this function | |
755 | compares specified entry to existing entry. */ | |
d62a17ae | 756 | static int community_list_dup_check(struct community_list *list, |
757 | struct community_entry *new) | |
718e3744 | 758 | { |
d62a17ae | 759 | struct community_entry *entry; |
760 | ||
761 | for (entry = list->head; entry; entry = entry->next) { | |
762 | if (entry->style != new->style) | |
763 | continue; | |
764 | ||
765 | if (entry->direct != new->direct) | |
766 | continue; | |
767 | ||
768 | if (entry->any != new->any) | |
769 | continue; | |
770 | ||
771 | if (entry->any) | |
772 | return 1; | |
773 | ||
774 | switch (entry->style) { | |
775 | case COMMUNITY_LIST_STANDARD: | |
776 | if (community_cmp(entry->u.com, new->u.com)) | |
777 | return 1; | |
778 | break; | |
779 | case LARGE_COMMUNITY_LIST_STANDARD: | |
780 | if (lcommunity_cmp(entry->u.lcom, new->u.lcom)) | |
781 | return 1; | |
782 | break; | |
783 | case EXTCOMMUNITY_LIST_STANDARD: | |
784 | if (ecommunity_cmp(entry->u.ecom, new->u.ecom)) | |
785 | return 1; | |
786 | break; | |
787 | case COMMUNITY_LIST_EXPANDED: | |
788 | case EXTCOMMUNITY_LIST_EXPANDED: | |
789 | case LARGE_COMMUNITY_LIST_EXPANDED: | |
790 | if (strcmp(entry->config, new->config) == 0) | |
791 | return 1; | |
792 | break; | |
793 | default: | |
794 | break; | |
795 | } | |
796 | } | |
797 | return 0; | |
718e3744 | 798 | } |
6b0655a2 | 799 | |
718e3744 | 800 | /* Set community-list. */ |
d62a17ae | 801 | int community_list_set(struct community_list_handler *ch, const char *name, |
802 | const char *str, int direct, int style) | |
718e3744 | 803 | { |
d62a17ae | 804 | struct community_entry *entry = NULL; |
805 | struct community_list *list; | |
806 | struct community *com = NULL; | |
807 | regex_t *regex = NULL; | |
808 | ||
809 | /* Get community list. */ | |
810 | list = community_list_get(ch, name, COMMUNITY_LIST_MASTER); | |
811 | ||
812 | /* When community-list already has entry, new entry should have same | |
813 | style. If you want to have mixed style community-list, you can | |
814 | comment out this check. */ | |
815 | if (!community_list_empty_p(list)) { | |
816 | struct community_entry *first; | |
817 | ||
818 | first = list->head; | |
819 | ||
820 | if (style != first->style) { | |
821 | return (first->style == COMMUNITY_LIST_STANDARD | |
822 | ? COMMUNITY_LIST_ERR_STANDARD_CONFLICT | |
823 | : COMMUNITY_LIST_ERR_EXPANDED_CONFLICT); | |
824 | } | |
fee6e4e4 | 825 | } |
718e3744 | 826 | |
d62a17ae | 827 | if (str) { |
828 | if (style == COMMUNITY_LIST_STANDARD) | |
829 | com = community_str2com(str); | |
830 | else | |
831 | regex = bgp_regcomp(str); | |
8708b74f | 832 | |
d62a17ae | 833 | if (!com && !regex) |
834 | return COMMUNITY_LIST_ERR_MALFORMED_VAL; | |
835 | } | |
718e3744 | 836 | |
d62a17ae | 837 | entry = community_entry_new(); |
838 | entry->direct = direct; | |
839 | entry->style = style; | |
840 | entry->any = (str ? 0 : 1); | |
841 | entry->u.com = com; | |
842 | entry->reg = regex; | |
843 | entry->config = | |
844 | (regex ? XSTRDUP(MTYPE_COMMUNITY_LIST_CONFIG, str) : NULL); | |
845 | ||
846 | /* Do not put duplicated community entry. */ | |
847 | if (community_list_dup_check(list, entry)) | |
848 | community_entry_free(entry); | |
849 | else { | |
850 | community_list_entry_add(list, entry); | |
851 | route_map_notify_dependencies(name, RMAP_EVENT_CLIST_ADDED); | |
852 | } | |
718e3744 | 853 | |
d62a17ae | 854 | return 0; |
718e3744 | 855 | } |
856 | ||
813d4307 | 857 | /* Unset community-list */ |
d62a17ae | 858 | int community_list_unset(struct community_list_handler *ch, const char *name, |
859 | const char *str, int direct, int style, int delete_all) | |
718e3744 | 860 | { |
d62a17ae | 861 | struct community_entry *entry = NULL; |
862 | struct community_list *list; | |
863 | struct community *com = NULL; | |
864 | ||
865 | /* Lookup community list. */ | |
866 | list = community_list_lookup(ch, name, COMMUNITY_LIST_MASTER); | |
867 | if (list == NULL) | |
868 | return COMMUNITY_LIST_ERR_CANT_FIND_LIST; | |
869 | ||
870 | /* Delete all of entry belongs to this community-list. */ | |
871 | if (delete_all) { | |
872 | community_list_delete(list); | |
873 | route_map_notify_dependencies(name, RMAP_EVENT_CLIST_DELETED); | |
874 | return 0; | |
875 | } | |
718e3744 | 876 | |
d62a17ae | 877 | if (style == COMMUNITY_LIST_STANDARD) { |
878 | if (str) | |
879 | com = community_str2com(str); | |
880 | } | |
718e3744 | 881 | |
d62a17ae | 882 | if (com) { |
883 | entry = community_list_entry_lookup(list, com, direct); | |
884 | community_free(com); | |
885 | } else | |
886 | entry = community_list_entry_lookup(list, str, direct); | |
fee6e4e4 | 887 | |
d62a17ae | 888 | if (!entry) |
889 | return COMMUNITY_LIST_ERR_CANT_FIND_LIST; | |
718e3744 | 890 | |
d62a17ae | 891 | community_list_entry_delete(list, entry, style); |
892 | route_map_notify_dependencies(name, RMAP_EVENT_CLIST_DELETED); | |
718e3744 | 893 | |
d62a17ae | 894 | return 0; |
718e3744 | 895 | } |
896 | ||
57d187bc | 897 | /* Delete all permitted large communities in the list from com. */ |
d62a17ae | 898 | struct lcommunity *lcommunity_list_match_delete(struct lcommunity *lcom, |
899 | struct community_list *list) | |
57d187bc | 900 | { |
d62a17ae | 901 | struct community_entry *entry; |
902 | u_int32_t com_index_to_delete[lcom->size]; | |
903 | u_char *ptr; | |
904 | int delete_index = 0; | |
905 | int i; | |
906 | ||
907 | /* Loop over each lcommunity value and evaluate each against the | |
908 | * community-list. If we need to delete a community value add its index | |
909 | * to | |
910 | * com_index_to_delete. | |
911 | */ | |
912 | ptr = lcom->val; | |
913 | for (i = 0; i < lcom->size; i++) { | |
914 | ptr += (i * LCOMMUNITY_SIZE); | |
915 | for (entry = list->head; entry; entry = entry->next) { | |
916 | if (entry->any) { | |
917 | if (entry->direct == COMMUNITY_PERMIT) { | |
918 | com_index_to_delete[delete_index] = i; | |
919 | delete_index++; | |
920 | } | |
921 | break; | |
922 | } | |
923 | ||
924 | else if ((entry->style == LARGE_COMMUNITY_LIST_STANDARD) | |
925 | && lcommunity_include(entry->u.lcom, ptr)) { | |
926 | if (entry->direct == COMMUNITY_PERMIT) { | |
927 | com_index_to_delete[delete_index] = i; | |
928 | delete_index++; | |
929 | } | |
930 | break; | |
931 | } | |
932 | ||
cde8d696 | 933 | else if ((entry->style == LARGE_COMMUNITY_LIST_EXPANDED) |
d62a17ae | 934 | && lcommunity_regexp_include(entry->reg, lcom, |
935 | i)) { | |
936 | if (entry->direct == COMMUNITY_PERMIT) { | |
937 | com_index_to_delete[delete_index] = i; | |
938 | delete_index++; | |
939 | } | |
940 | break; | |
941 | } | |
942 | } | |
943 | } | |
57d187bc | 944 | |
d62a17ae | 945 | /* Delete all of the communities we flagged for deletion */ |
946 | ptr = lcom->val; | |
947 | for (i = delete_index - 1; i >= 0; i--) { | |
948 | ptr += (com_index_to_delete[i] * LCOMMUNITY_SIZE); | |
949 | lcommunity_del_val(lcom, ptr); | |
950 | } | |
57d187bc | 951 | |
d62a17ae | 952 | return lcom; |
57d187bc JS |
953 | } |
954 | ||
955 | /* Set lcommunity-list. */ | |
d62a17ae | 956 | int lcommunity_list_set(struct community_list_handler *ch, const char *name, |
957 | const char *str, int direct, int style) | |
57d187bc | 958 | { |
d62a17ae | 959 | struct community_entry *entry = NULL; |
960 | struct community_list *list; | |
961 | struct lcommunity *lcom = NULL; | |
962 | regex_t *regex = NULL; | |
963 | ||
964 | /* Get community list. */ | |
965 | list = community_list_get(ch, name, LARGE_COMMUNITY_LIST_MASTER); | |
966 | ||
967 | /* When community-list already has entry, new entry should have same | |
968 | style. If you want to have mixed style community-list, you can | |
969 | comment out this check. */ | |
970 | if (!community_list_empty_p(list)) { | |
971 | struct community_entry *first; | |
972 | ||
973 | first = list->head; | |
974 | ||
975 | if (style != first->style) { | |
976 | return (first->style == COMMUNITY_LIST_STANDARD | |
977 | ? COMMUNITY_LIST_ERR_STANDARD_CONFLICT | |
978 | : COMMUNITY_LIST_ERR_EXPANDED_CONFLICT); | |
979 | } | |
980 | } | |
57d187bc | 981 | |
d62a17ae | 982 | if (str) { |
983 | if (style == LARGE_COMMUNITY_LIST_STANDARD) | |
984 | lcom = lcommunity_str2com(str); | |
985 | else | |
986 | regex = bgp_regcomp(str); | |
57d187bc | 987 | |
d62a17ae | 988 | if (!lcom && !regex) |
989 | return COMMUNITY_LIST_ERR_MALFORMED_VAL; | |
990 | } | |
57d187bc | 991 | |
d62a17ae | 992 | entry = community_entry_new(); |
993 | entry->direct = direct; | |
994 | entry->style = style; | |
995 | entry->any = (str ? 0 : 1); | |
996 | entry->u.lcom = lcom; | |
997 | entry->reg = regex; | |
998 | if (lcom) | |
999 | entry->config = lcommunity_lcom2str( | |
1000 | lcom, LCOMMUNITY_FORMAT_COMMUNITY_LIST); | |
1001 | else if (regex) | |
1002 | entry->config = XSTRDUP(MTYPE_COMMUNITY_LIST_CONFIG, str); | |
1003 | else | |
1004 | entry->config = NULL; | |
1005 | ||
1006 | /* Do not put duplicated community entry. */ | |
1007 | if (community_list_dup_check(list, entry)) | |
1008 | community_entry_free(entry); | |
1009 | else | |
1010 | community_list_entry_add(list, entry); | |
1011 | ||
1012 | return 0; | |
57d187bc JS |
1013 | } |
1014 | ||
1015 | /* Unset community-list. When str is NULL, delete all of | |
1016 | community-list entry belongs to the specified name. */ | |
d62a17ae | 1017 | int lcommunity_list_unset(struct community_list_handler *ch, const char *name, |
1018 | const char *str, int direct, int style) | |
57d187bc | 1019 | { |
d62a17ae | 1020 | struct community_entry *entry = NULL; |
1021 | struct community_list *list; | |
1022 | struct lcommunity *lcom = NULL; | |
1023 | regex_t *regex = NULL; | |
1024 | ||
1025 | /* Lookup community list. */ | |
1026 | list = community_list_lookup(ch, name, LARGE_COMMUNITY_LIST_MASTER); | |
1027 | if (list == NULL) | |
1028 | return COMMUNITY_LIST_ERR_CANT_FIND_LIST; | |
1029 | ||
1030 | /* Delete all of entry belongs to this community-list. */ | |
1031 | if (!str) { | |
1032 | community_list_delete(list); | |
1033 | return 0; | |
1034 | } | |
57d187bc | 1035 | |
d62a17ae | 1036 | if (style == LARGE_COMMUNITY_LIST_STANDARD) |
1037 | lcom = lcommunity_str2com(str); | |
1038 | else | |
1039 | regex = bgp_regcomp(str); | |
57d187bc | 1040 | |
d62a17ae | 1041 | if (!lcom && !regex) |
1042 | return COMMUNITY_LIST_ERR_MALFORMED_VAL; | |
57d187bc | 1043 | |
d62a17ae | 1044 | if (lcom) |
1045 | entry = community_list_entry_lookup(list, lcom, direct); | |
1046 | else | |
1047 | entry = community_list_entry_lookup(list, str, direct); | |
57d187bc | 1048 | |
d62a17ae | 1049 | if (lcom) |
1050 | lcommunity_free(&lcom); | |
1051 | if (regex) | |
1052 | bgp_regex_free(regex); | |
57d187bc | 1053 | |
d62a17ae | 1054 | if (!entry) |
1055 | return COMMUNITY_LIST_ERR_CANT_FIND_LIST; | |
57d187bc | 1056 | |
d62a17ae | 1057 | community_list_entry_delete(list, entry, style); |
57d187bc | 1058 | |
d62a17ae | 1059 | return 0; |
57d187bc JS |
1060 | } |
1061 | ||
718e3744 | 1062 | /* Set extcommunity-list. */ |
d62a17ae | 1063 | int extcommunity_list_set(struct community_list_handler *ch, const char *name, |
1064 | const char *str, int direct, int style) | |
718e3744 | 1065 | { |
d62a17ae | 1066 | struct community_entry *entry = NULL; |
1067 | struct community_list *list; | |
1068 | struct ecommunity *ecom = NULL; | |
1069 | regex_t *regex = NULL; | |
718e3744 | 1070 | |
d62a17ae | 1071 | entry = NULL; |
718e3744 | 1072 | |
d62a17ae | 1073 | /* Get community list. */ |
1074 | list = community_list_get(ch, name, EXTCOMMUNITY_LIST_MASTER); | |
718e3744 | 1075 | |
d62a17ae | 1076 | /* When community-list already has entry, new entry should have same |
1077 | style. If you want to have mixed style community-list, you can | |
1078 | comment out this check. */ | |
1079 | if (!community_list_empty_p(list)) { | |
1080 | struct community_entry *first; | |
718e3744 | 1081 | |
d62a17ae | 1082 | first = list->head; |
718e3744 | 1083 | |
d62a17ae | 1084 | if (style != first->style) { |
1085 | return (first->style == EXTCOMMUNITY_LIST_STANDARD | |
1086 | ? COMMUNITY_LIST_ERR_STANDARD_CONFLICT | |
1087 | : COMMUNITY_LIST_ERR_EXPANDED_CONFLICT); | |
1088 | } | |
fee6e4e4 | 1089 | } |
718e3744 | 1090 | |
d62a17ae | 1091 | if (style == EXTCOMMUNITY_LIST_STANDARD) |
1092 | ecom = ecommunity_str2com(str, 0, 1); | |
1093 | else | |
1094 | regex = bgp_regcomp(str); | |
1095 | ||
1096 | if (!ecom && !regex) | |
1097 | return COMMUNITY_LIST_ERR_MALFORMED_VAL; | |
1098 | ||
1099 | if (ecom) | |
1100 | ecom->str = | |
1101 | ecommunity_ecom2str(ecom, ECOMMUNITY_FORMAT_DISPLAY, 0); | |
1102 | ||
1103 | entry = community_entry_new(); | |
1104 | entry->direct = direct; | |
1105 | entry->style = style; | |
1106 | entry->any = (str ? 0 : 1); | |
1107 | if (ecom) | |
1108 | entry->config = ecommunity_ecom2str( | |
1109 | ecom, ECOMMUNITY_FORMAT_COMMUNITY_LIST, 0); | |
1110 | else if (regex) | |
1111 | entry->config = XSTRDUP(MTYPE_COMMUNITY_LIST_CONFIG, str); | |
1112 | ||
1113 | entry->u.ecom = ecom; | |
1114 | entry->reg = regex; | |
1115 | ||
1116 | /* Do not put duplicated community entry. */ | |
1117 | if (community_list_dup_check(list, entry)) | |
1118 | community_entry_free(entry); | |
1119 | else { | |
1120 | community_list_entry_add(list, entry); | |
1121 | route_map_notify_dependencies(name, RMAP_EVENT_ECLIST_ADDED); | |
1122 | } | |
718e3744 | 1123 | |
d62a17ae | 1124 | return 0; |
718e3744 | 1125 | } |
1126 | ||
1127 | /* Unset extcommunity-list. When str is NULL, delete all of | |
1128 | extcommunity-list entry belongs to the specified name. */ | |
d62a17ae | 1129 | int extcommunity_list_unset(struct community_list_handler *ch, const char *name, |
1130 | const char *str, int direct, int style, | |
1131 | int delete_all) | |
718e3744 | 1132 | { |
d62a17ae | 1133 | struct community_entry *entry = NULL; |
1134 | struct community_list *list; | |
1135 | struct ecommunity *ecom = NULL; | |
1136 | ||
1137 | /* Lookup extcommunity list. */ | |
1138 | list = community_list_lookup(ch, name, EXTCOMMUNITY_LIST_MASTER); | |
1139 | if (list == NULL) | |
1140 | return COMMUNITY_LIST_ERR_CANT_FIND_LIST; | |
1141 | ||
1142 | /* Delete all of entry belongs to this extcommunity-list. */ | |
1143 | if (delete_all) { | |
1144 | community_list_delete(list); | |
1145 | route_map_notify_dependencies(name, RMAP_EVENT_ECLIST_DELETED); | |
1146 | return 0; | |
1147 | } | |
718e3744 | 1148 | |
d62a17ae | 1149 | if (style == EXTCOMMUNITY_LIST_STANDARD) { |
1150 | if (str) | |
1151 | ecom = ecommunity_str2com(str, 0, 1); | |
1152 | } | |
718e3744 | 1153 | |
d62a17ae | 1154 | if (ecom) { |
1155 | entry = community_list_entry_lookup(list, ecom, direct); | |
1156 | ecommunity_free(&ecom); | |
1157 | } else | |
1158 | entry = community_list_entry_lookup(list, str, direct); | |
fee6e4e4 | 1159 | |
d62a17ae | 1160 | if (!entry) |
1161 | return COMMUNITY_LIST_ERR_CANT_FIND_LIST; | |
718e3744 | 1162 | |
d62a17ae | 1163 | community_list_entry_delete(list, entry, style); |
1164 | route_map_notify_dependencies(name, RMAP_EVENT_ECLIST_DELETED); | |
718e3744 | 1165 | |
d62a17ae | 1166 | return 0; |
718e3744 | 1167 | } |
1168 | ||
1169 | /* Initializa community-list. Return community-list handler. */ | |
d62a17ae | 1170 | struct community_list_handler *community_list_init(void) |
718e3744 | 1171 | { |
d62a17ae | 1172 | struct community_list_handler *ch; |
1173 | ch = XCALLOC(MTYPE_COMMUNITY_LIST_HANDLER, | |
1174 | sizeof(struct community_list_handler)); | |
1175 | return ch; | |
718e3744 | 1176 | } |
1177 | ||
1178 | /* Terminate community-list. */ | |
d62a17ae | 1179 | void community_list_terminate(struct community_list_handler *ch) |
718e3744 | 1180 | { |
d62a17ae | 1181 | struct community_list_master *cm; |
1182 | struct community_list *list; | |
1183 | ||
1184 | cm = &ch->community_list; | |
1185 | while ((list = cm->num.head) != NULL) | |
1186 | community_list_delete(list); | |
1187 | while ((list = cm->str.head) != NULL) | |
1188 | community_list_delete(list); | |
1189 | ||
1190 | cm = &ch->lcommunity_list; | |
1191 | while ((list = cm->num.head) != NULL) | |
1192 | community_list_delete(list); | |
1193 | while ((list = cm->str.head) != NULL) | |
1194 | community_list_delete(list); | |
1195 | ||
1196 | cm = &ch->extcommunity_list; | |
1197 | while ((list = cm->num.head) != NULL) | |
1198 | community_list_delete(list); | |
1199 | while ((list = cm->str.head) != NULL) | |
1200 | community_list_delete(list); | |
1201 | ||
1202 | XFREE(MTYPE_COMMUNITY_LIST_HANDLER, ch); | |
718e3744 | 1203 | } |