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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" | |
856ed18a | 25 | #include "command.h" |
718e3744 | 26 | #include "vector.h" |
27 | #include "prefix.h" | |
82f97584 | 28 | #include "vty.h" |
718e3744 | 29 | #include "routemap.h" |
30 | #include "command.h" | |
fee0f4c6 | 31 | #include "log.h" |
518f0eb1 | 32 | #include "hash.h" |
b85120bc | 33 | #include "libfrr.h" |
040c7c3a | 34 | #include "lib_errors.h" |
49a08bb0 | 35 | #include "table.h" |
856ed18a | 36 | #include "json.h" |
88711d8a | 37 | #include "jhash.h" |
6b0655a2 | 38 | |
bf8d3d6a DL |
39 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP, "Route map"); |
40 | DEFINE_MTYPE(LIB, ROUTE_MAP_NAME, "Route map name"); | |
41 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_INDEX, "Route map index"); | |
42 | DEFINE_MTYPE(LIB, ROUTE_MAP_RULE, "Route map rule"); | |
43 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_RULE_STR, "Route map rule str"); | |
44 | DEFINE_MTYPE(LIB, ROUTE_MAP_COMPILED, "Route map compiled"); | |
45 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP, "Route map dependency"); | |
46 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP_DATA, "Route map dependency data"); | |
4a1ab8e4 | 47 | |
96244aca DL |
48 | DEFINE_QOBJ_TYPE(route_map_index); |
49 | DEFINE_QOBJ_TYPE(route_map); | |
e80e7cce | 50 | |
88711d8a DL |
51 | static int rmap_cmd_name_cmp(const struct route_map_rule_cmd_proxy *a, |
52 | const struct route_map_rule_cmd_proxy *b) | |
53 | { | |
54 | return strcmp(a->cmd->str, b->cmd->str); | |
55 | } | |
56 | ||
57 | static uint32_t rmap_cmd_name_hash(const struct route_map_rule_cmd_proxy *item) | |
58 | { | |
59 | return jhash(item->cmd->str, strlen(item->cmd->str), 0xbfd69320); | |
60 | } | |
61 | ||
62 | DECLARE_HASH(rmap_cmd_name, struct route_map_rule_cmd_proxy, itm, | |
63 | rmap_cmd_name_cmp, rmap_cmd_name_hash); | |
64 | ||
65 | static struct rmap_cmd_name_head rmap_match_cmds[1] = { | |
66 | INIT_HASH(rmap_match_cmds[0]), | |
67 | }; | |
68 | static struct rmap_cmd_name_head rmap_set_cmds[1] = { | |
69 | INIT_HASH(rmap_set_cmds[0]), | |
70 | }; | |
71 | ||
49a08bb0 NT |
72 | #define IPv4_PREFIX_LIST "ip address prefix-list" |
73 | #define IPv6_PREFIX_LIST "ipv6 address prefix-list" | |
49a08bb0 | 74 | |
2d26f094 NT |
75 | #define IS_RULE_IPv4_PREFIX_LIST(S) \ |
76 | (strncmp(S, IPv4_PREFIX_LIST, strlen(IPv4_PREFIX_LIST)) == 0) | |
77 | #define IS_RULE_IPv6_PREFIX_LIST(S) \ | |
78 | (strncmp(S, IPv6_PREFIX_LIST, strlen(IPv6_PREFIX_LIST)) == 0) | |
79 | ||
49a08bb0 NT |
80 | struct route_map_pentry_dep { |
81 | struct prefix_list_entry *pentry; | |
82 | const char *plist_name; | |
83 | route_map_event_t event; | |
84 | }; | |
85 | ||
2d26f094 NT |
86 | static void route_map_pfx_tbl_update(route_map_event_t event, |
87 | struct route_map_index *index, afi_t afi, | |
88 | const char *plist_name); | |
89 | static void route_map_pfx_table_add_default(afi_t afi, | |
90 | struct route_map_index *index); | |
91 | static void route_map_pfx_table_del_default(afi_t afi, | |
92 | struct route_map_index *index); | |
93 | static void route_map_add_plist_entries(afi_t afi, | |
94 | struct route_map_index *index, | |
95 | const char *plist_name, | |
96 | struct prefix_list_entry *entry); | |
97 | static void route_map_del_plist_entries(afi_t afi, | |
98 | struct route_map_index *index, | |
99 | const char *plist_name, | |
100 | struct prefix_list_entry *entry); | |
2d26f094 NT |
101 | |
102 | static struct hash *route_map_get_dep_hash(route_map_event_t event); | |
5f503e5f | 103 | static void route_map_free_map(struct route_map *map); |
49a08bb0 | 104 | |
a7282663 | 105 | struct route_map_match_set_hooks rmap_match_set_hook; |
82f97584 DW |
106 | |
107 | /* match interface */ | |
d62a17ae | 108 | void route_map_match_interface_hook(int (*func)( |
d5d737a2 SP |
109 | struct route_map_index *index, const char *command, |
110 | const char *arg, route_map_event_t type, | |
111 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 112 | { |
d62a17ae | 113 | rmap_match_set_hook.match_interface = func; |
82f97584 DW |
114 | } |
115 | ||
116 | /* no match interface */ | |
d62a17ae | 117 | void route_map_no_match_interface_hook(int (*func)( |
d5d737a2 SP |
118 | struct route_map_index *index, const char *command, |
119 | const char *arg, route_map_event_t type, | |
120 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 121 | { |
d62a17ae | 122 | rmap_match_set_hook.no_match_interface = func; |
82f97584 DW |
123 | } |
124 | ||
125 | /* match ip address */ | |
d62a17ae | 126 | void route_map_match_ip_address_hook(int (*func)( |
d5d737a2 SP |
127 | struct route_map_index *index, const char *command, |
128 | const char *arg, route_map_event_t type, | |
129 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 130 | { |
d62a17ae | 131 | rmap_match_set_hook.match_ip_address = func; |
82f97584 DW |
132 | } |
133 | ||
134 | /* no match ip address */ | |
d62a17ae | 135 | void route_map_no_match_ip_address_hook(int (*func)( |
d5d737a2 SP |
136 | struct route_map_index *index, const char *command, |
137 | const char *arg, route_map_event_t type, | |
138 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 139 | { |
d62a17ae | 140 | rmap_match_set_hook.no_match_ip_address = func; |
82f97584 DW |
141 | } |
142 | ||
143 | /* match ip address prefix list */ | |
d62a17ae | 144 | void route_map_match_ip_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
145 | struct route_map_index *index, const char *command, |
146 | const char *arg, route_map_event_t type, | |
147 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 148 | { |
d62a17ae | 149 | rmap_match_set_hook.match_ip_address_prefix_list = func; |
82f97584 DW |
150 | } |
151 | ||
152 | /* no match ip address prefix list */ | |
d62a17ae | 153 | void route_map_no_match_ip_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
154 | struct route_map_index *index, const char *command, |
155 | const char *arg, route_map_event_t type, | |
156 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 157 | { |
d62a17ae | 158 | rmap_match_set_hook.no_match_ip_address_prefix_list = func; |
82f97584 DW |
159 | } |
160 | ||
161 | /* match ip next hop */ | |
d62a17ae | 162 | void route_map_match_ip_next_hop_hook(int (*func)( |
d5d737a2 SP |
163 | struct route_map_index *index, const char *command, |
164 | const char *arg, route_map_event_t type, | |
165 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 166 | { |
d62a17ae | 167 | rmap_match_set_hook.match_ip_next_hop = func; |
82f97584 DW |
168 | } |
169 | ||
170 | /* no match ip next hop */ | |
d62a17ae | 171 | void route_map_no_match_ip_next_hop_hook(int (*func)( |
d5d737a2 SP |
172 | struct route_map_index *index, const char *command, |
173 | const char *arg, route_map_event_t type, | |
174 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 175 | { |
d62a17ae | 176 | rmap_match_set_hook.no_match_ip_next_hop = func; |
82f97584 DW |
177 | } |
178 | ||
bc63ba98 DA |
179 | /* match ipv6 next-hop */ |
180 | void route_map_match_ipv6_next_hop_hook(int (*func)( | |
181 | struct route_map_index *index, const char *command, const char *arg, | |
182 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
183 | { | |
184 | rmap_match_set_hook.match_ipv6_next_hop = func; | |
185 | } | |
186 | ||
187 | /* no match ipv6 next-hop */ | |
188 | void route_map_no_match_ipv6_next_hop_hook(int (*func)( | |
189 | struct route_map_index *index, const char *command, const char *arg, | |
190 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
191 | { | |
192 | rmap_match_set_hook.no_match_ipv6_next_hop = func; | |
193 | } | |
194 | ||
82f97584 | 195 | /* match ip next hop prefix list */ |
d62a17ae | 196 | void route_map_match_ip_next_hop_prefix_list_hook(int (*func)( |
d5d737a2 SP |
197 | struct route_map_index *index, const char *command, |
198 | const char *arg, route_map_event_t type, | |
199 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 200 | { |
d62a17ae | 201 | rmap_match_set_hook.match_ip_next_hop_prefix_list = func; |
82f97584 DW |
202 | } |
203 | ||
204 | /* no match ip next hop prefix list */ | |
d62a17ae | 205 | void route_map_no_match_ip_next_hop_prefix_list_hook(int (*func)( |
d5d737a2 SP |
206 | struct route_map_index *index, const char *command, |
207 | const char *arg, route_map_event_t type, | |
208 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 209 | { |
d62a17ae | 210 | rmap_match_set_hook.no_match_ip_next_hop_prefix_list = func; |
82f97584 DW |
211 | } |
212 | ||
f554fda7 | 213 | /* match ip next-hop type */ |
61ad901e | 214 | void route_map_match_ip_next_hop_type_hook(int (*func)( |
d5d737a2 SP |
215 | struct route_map_index *index, const char *command, |
216 | const char *arg, route_map_event_t type, | |
217 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
218 | { |
219 | rmap_match_set_hook.match_ip_next_hop_type = func; | |
220 | } | |
221 | ||
f554fda7 | 222 | /* no match ip next-hop type */ |
61ad901e | 223 | void route_map_no_match_ip_next_hop_type_hook(int (*func)( |
d5d737a2 SP |
224 | struct route_map_index *index, const char *command, |
225 | const char *arg, route_map_event_t type, | |
226 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
227 | { |
228 | rmap_match_set_hook.no_match_ip_next_hop_type = func; | |
229 | } | |
230 | ||
82f97584 | 231 | /* match ipv6 address */ |
d62a17ae | 232 | void route_map_match_ipv6_address_hook(int (*func)( |
d5d737a2 SP |
233 | struct route_map_index *index, const char *command, |
234 | const char *arg, route_map_event_t type, | |
235 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 236 | { |
d62a17ae | 237 | rmap_match_set_hook.match_ipv6_address = func; |
82f97584 DW |
238 | } |
239 | ||
240 | /* no match ipv6 address */ | |
d62a17ae | 241 | void route_map_no_match_ipv6_address_hook(int (*func)( |
d5d737a2 SP |
242 | struct route_map_index *index, const char *command, |
243 | const char *arg, route_map_event_t type, | |
244 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 245 | { |
d62a17ae | 246 | rmap_match_set_hook.no_match_ipv6_address = func; |
82f97584 DW |
247 | } |
248 | ||
249 | ||
250 | /* match ipv6 address prefix list */ | |
d62a17ae | 251 | void route_map_match_ipv6_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
252 | struct route_map_index *index, const char *command, |
253 | const char *arg, route_map_event_t type, | |
254 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 255 | { |
d62a17ae | 256 | rmap_match_set_hook.match_ipv6_address_prefix_list = func; |
82f97584 DW |
257 | } |
258 | ||
259 | /* no match ipv6 address prefix list */ | |
d62a17ae | 260 | void route_map_no_match_ipv6_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
261 | struct route_map_index *index, const char *command, |
262 | const char *arg, route_map_event_t type, | |
263 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 264 | { |
d62a17ae | 265 | rmap_match_set_hook.no_match_ipv6_address_prefix_list = func; |
82f97584 DW |
266 | } |
267 | ||
61ad901e DA |
268 | /* match ipv6 next-hop type */ |
269 | void route_map_match_ipv6_next_hop_type_hook(int (*func)( | |
d5d737a2 SP |
270 | struct route_map_index *index, const char *command, |
271 | const char *arg, route_map_event_t type, | |
272 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
273 | { |
274 | rmap_match_set_hook.match_ipv6_next_hop_type = func; | |
275 | } | |
276 | ||
277 | /* no match ipv6 next-hop type */ | |
278 | void route_map_no_match_ipv6_next_hop_type_hook(int (*func)( | |
d5d737a2 SP |
279 | struct route_map_index *index, const char *command, |
280 | const char *arg, route_map_event_t type, | |
281 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
282 | { |
283 | rmap_match_set_hook.no_match_ipv6_next_hop_type = func; | |
284 | } | |
285 | ||
82f191a2 DA |
286 | /* match ipv6 next-hop prefix-list */ |
287 | void route_map_match_ipv6_next_hop_prefix_list_hook(int (*func)( | |
288 | struct route_map_index *index, const char *command, const char *arg, | |
289 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
290 | { | |
291 | rmap_match_set_hook.match_ipv6_next_hop_prefix_list = func; | |
292 | } | |
293 | ||
294 | /* no match ipv6 next-hop prefix-list */ | |
295 | void route_map_no_match_ipv6_next_hop_prefix_list_hook(int (*func)( | |
296 | struct route_map_index *index, const char *command, const char *arg, | |
297 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
298 | { | |
299 | rmap_match_set_hook.no_match_ipv6_next_hop_prefix_list = func; | |
300 | } | |
301 | ||
82f97584 | 302 | /* match metric */ |
d62a17ae | 303 | void route_map_match_metric_hook(int (*func)( |
d5d737a2 SP |
304 | struct route_map_index *index, const char *command, |
305 | const char *arg, route_map_event_t type, | |
306 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 307 | { |
d62a17ae | 308 | rmap_match_set_hook.match_metric = func; |
82f97584 DW |
309 | } |
310 | ||
311 | /* no match metric */ | |
d62a17ae | 312 | void route_map_no_match_metric_hook(int (*func)( |
d5d737a2 SP |
313 | struct route_map_index *index, const char *command, |
314 | const char *arg, route_map_event_t type, | |
315 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 316 | { |
d62a17ae | 317 | rmap_match_set_hook.no_match_metric = func; |
82f97584 DW |
318 | } |
319 | ||
320 | /* match tag */ | |
d5d737a2 | 321 | void route_map_match_tag_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 322 | const char *command, const char *arg, |
d5d737a2 SP |
323 | route_map_event_t type, |
324 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 325 | { |
d62a17ae | 326 | rmap_match_set_hook.match_tag = func; |
82f97584 DW |
327 | } |
328 | ||
329 | /* no match tag */ | |
d62a17ae | 330 | void route_map_no_match_tag_hook(int (*func)( |
d5d737a2 SP |
331 | struct route_map_index *index, const char *command, |
332 | const char *arg, route_map_event_t type, | |
333 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 334 | { |
d62a17ae | 335 | rmap_match_set_hook.no_match_tag = func; |
82f97584 DW |
336 | } |
337 | ||
31f937fb | 338 | /* set sr-te color */ |
d5d737a2 | 339 | void route_map_set_srte_color_hook(int (*func)(struct route_map_index *index, |
31f937fb | 340 | const char *command, |
d5d737a2 SP |
341 | const char *arg, |
342 | char *errmsg, size_t errmsg_len)) | |
31f937fb SM |
343 | { |
344 | rmap_match_set_hook.set_srte_color = func; | |
345 | } | |
346 | ||
347 | /* no set sr-te color */ | |
d5d737a2 | 348 | void route_map_no_set_srte_color_hook(int (*func)(struct route_map_index *index, |
31f937fb | 349 | const char *command, |
d5d737a2 SP |
350 | const char *arg, |
351 | char *errmsg, size_t errmsg_len)) | |
31f937fb SM |
352 | { |
353 | rmap_match_set_hook.no_set_srte_color = func; | |
354 | } | |
355 | ||
82f97584 | 356 | /* set ip nexthop */ |
d5d737a2 | 357 | void route_map_set_ip_nexthop_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 358 | const char *command, |
d5d737a2 SP |
359 | const char *arg, |
360 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 361 | { |
d62a17ae | 362 | rmap_match_set_hook.set_ip_nexthop = func; |
82f97584 DW |
363 | } |
364 | ||
365 | /* no set ip nexthop */ | |
d5d737a2 | 366 | void route_map_no_set_ip_nexthop_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 367 | const char *command, |
d5d737a2 SP |
368 | const char *arg, |
369 | char *errmsg, | |
370 | size_t errmsg_len)) | |
82f97584 | 371 | { |
d62a17ae | 372 | rmap_match_set_hook.no_set_ip_nexthop = func; |
82f97584 DW |
373 | } |
374 | ||
375 | /* set ipv6 nexthop local */ | |
d62a17ae | 376 | void route_map_set_ipv6_nexthop_local_hook( |
d5d737a2 SP |
377 | int (*func)(struct route_map_index *index, |
378 | const char *command, const char *arg, | |
379 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 380 | { |
d62a17ae | 381 | rmap_match_set_hook.set_ipv6_nexthop_local = func; |
82f97584 DW |
382 | } |
383 | ||
384 | /* no set ipv6 nexthop local */ | |
d62a17ae | 385 | void route_map_no_set_ipv6_nexthop_local_hook( |
d5d737a2 SP |
386 | int (*func)(struct route_map_index *index, |
387 | const char *command, const char *arg, | |
388 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 389 | { |
d62a17ae | 390 | rmap_match_set_hook.no_set_ipv6_nexthop_local = func; |
82f97584 DW |
391 | } |
392 | ||
393 | /* set metric */ | |
d5d737a2 | 394 | void route_map_set_metric_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 395 | const char *command, |
d5d737a2 SP |
396 | const char *arg, |
397 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 398 | { |
d62a17ae | 399 | rmap_match_set_hook.set_metric = func; |
82f97584 DW |
400 | } |
401 | ||
402 | /* no set metric */ | |
d5d737a2 | 403 | void route_map_no_set_metric_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 404 | const char *command, |
d5d737a2 SP |
405 | const char *arg, |
406 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 407 | { |
d62a17ae | 408 | rmap_match_set_hook.no_set_metric = func; |
82f97584 DW |
409 | } |
410 | ||
411 | /* set tag */ | |
d5d737a2 SP |
412 | void route_map_set_tag_hook(int (*func)(struct route_map_index *index, |
413 | const char *command, const char *arg, | |
414 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 415 | { |
d62a17ae | 416 | rmap_match_set_hook.set_tag = func; |
82f97584 DW |
417 | } |
418 | ||
419 | /* no set tag */ | |
d5d737a2 | 420 | void route_map_no_set_tag_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 421 | const char *command, |
d5d737a2 SP |
422 | const char *arg, |
423 | char *errmsg, size_t errmsg_len)) | |
d62a17ae | 424 | { |
425 | rmap_match_set_hook.no_set_tag = func; | |
82f97584 DW |
426 | } |
427 | ||
d5d737a2 | 428 | int generic_match_add(struct route_map_index *index, |
d62a17ae | 429 | const char *command, const char *arg, |
d5d737a2 SP |
430 | route_map_event_t type, |
431 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 432 | { |
cda7187d | 433 | enum rmap_compile_rets ret; |
d62a17ae | 434 | |
e2c8d6ce | 435 | ret = route_map_add_match(index, command, arg, type); |
9ca25fed | 436 | switch (ret) { |
9ca25fed | 437 | case RMAP_RULE_MISSING: |
d5d737a2 SP |
438 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
439 | frr_protonameinst); | |
9ca25fed | 440 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 441 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
442 | snprintf(errmsg, errmsg_len, |
443 | "%% [%s] Argument form is unsupported or malformed.", | |
444 | frr_protonameinst); | |
9ca25fed | 445 | return CMD_WARNING_CONFIG_FAILED; |
909f3d56 | 446 | case RMAP_COMPILE_SUCCESS: |
cda7187d DS |
447 | /* |
448 | * Nothing to do here move along | |
449 | */ | |
450 | break; | |
d62a17ae | 451 | } |
82f97584 | 452 | |
d62a17ae | 453 | return CMD_SUCCESS; |
454 | } | |
455 | ||
d5d737a2 | 456 | int generic_match_delete(struct route_map_index *index, |
d62a17ae | 457 | const char *command, const char *arg, |
d5d737a2 SP |
458 | route_map_event_t type, |
459 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 460 | { |
cda7187d | 461 | enum rmap_compile_rets ret; |
9ca25fed | 462 | int retval = CMD_SUCCESS; |
d62a17ae | 463 | char *dep_name = NULL; |
464 | const char *tmpstr; | |
465 | char *rmap_name = NULL; | |
466 | ||
467 | if (type != RMAP_EVENT_MATCH_DELETED) { | |
468 | /* ignore the mundane, the types without any dependency */ | |
469 | if (arg == NULL) { | |
470 | if ((tmpstr = route_map_get_match_arg(index, command)) | |
471 | != NULL) | |
472 | dep_name = | |
473 | XSTRDUP(MTYPE_ROUTE_MAP_RULE, tmpstr); | |
474 | } else { | |
475 | dep_name = XSTRDUP(MTYPE_ROUTE_MAP_RULE, arg); | |
476 | } | |
477 | rmap_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, index->map->name); | |
478 | } | |
479 | ||
909f3d56 | 480 | ret = route_map_delete_match(index, command, dep_name, type); |
9ca25fed DS |
481 | switch (ret) { |
482 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
483 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
484 | frr_protonameinst); | |
9ca25fed DS |
485 | retval = CMD_WARNING_CONFIG_FAILED; |
486 | break; | |
487 | case RMAP_COMPILE_ERROR: | |
d5d737a2 SP |
488 | snprintf(errmsg, errmsg_len, |
489 | "%% [%s] Argument form is unsupported or malformed.", | |
490 | frr_protonameinst); | |
9ca25fed DS |
491 | retval = CMD_WARNING_CONFIG_FAILED; |
492 | break; | |
493 | case RMAP_COMPILE_SUCCESS: | |
cda7187d DS |
494 | /* |
495 | * Nothing to do here | |
496 | */ | |
497 | break; | |
d62a17ae | 498 | } |
499 | ||
0a22ddfb QY |
500 | XFREE(MTYPE_ROUTE_MAP_RULE, dep_name); |
501 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
d62a17ae | 502 | |
9ca25fed | 503 | return retval; |
d62a17ae | 504 | } |
505 | ||
d5d737a2 SP |
506 | int generic_set_add(struct route_map_index *index, |
507 | const char *command, const char *arg, | |
508 | char *errmsg, size_t errmsg_len) | |
718e3744 | 509 | { |
cda7187d | 510 | enum rmap_compile_rets ret; |
d62a17ae | 511 | |
512 | ret = route_map_add_set(index, command, arg); | |
9ca25fed DS |
513 | switch (ret) { |
514 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
515 | snprintf(errmsg, errmsg_len, |
516 | "%% [%s] Can't find rule.", frr_protonameinst); | |
9ca25fed | 517 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 518 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
519 | snprintf(errmsg, errmsg_len, |
520 | "%% [%s] Argument form is unsupported or malformed.", | |
521 | frr_protonameinst); | |
9ca25fed | 522 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
523 | case RMAP_COMPILE_SUCCESS: |
524 | break; | |
d62a17ae | 525 | } |
9ca25fed | 526 | |
d62a17ae | 527 | return CMD_SUCCESS; |
528 | } | |
529 | ||
d5d737a2 SP |
530 | int generic_set_delete(struct route_map_index *index, |
531 | const char *command, const char *arg, | |
532 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 533 | { |
cda7187d | 534 | enum rmap_compile_rets ret; |
d62a17ae | 535 | |
536 | ret = route_map_delete_set(index, command, arg); | |
9ca25fed DS |
537 | switch (ret) { |
538 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
539 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
540 | frr_protonameinst); | |
9ca25fed | 541 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 542 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
543 | snprintf(errmsg, errmsg_len, |
544 | "%% [%s] Argument form is unsupported or malformed.", | |
545 | frr_protonameinst); | |
9ca25fed | 546 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
547 | case RMAP_COMPILE_SUCCESS: |
548 | break; | |
d62a17ae | 549 | } |
9ca25fed | 550 | |
d62a17ae | 551 | return CMD_SUCCESS; |
552 | } | |
553 | ||
554 | ||
718e3744 | 555 | /* Master list of route map. */ |
a7282663 RZ |
556 | struct route_map_list route_map_master = {NULL, NULL, NULL, NULL, NULL}; |
557 | struct hash *route_map_master_hash = NULL; | |
a6e0d253 | 558 | |
d8b87afe | 559 | static unsigned int route_map_hash_key_make(const void *p) |
a6e0d253 | 560 | { |
d62a17ae | 561 | const struct route_map *map = p; |
562 | return string_hash_make(map->name); | |
a6e0d253 DW |
563 | } |
564 | ||
74df8d6d | 565 | static bool route_map_hash_cmp(const void *p1, const void *p2) |
a6e0d253 | 566 | { |
d62a17ae | 567 | const struct route_map *map1 = p1; |
568 | const struct route_map *map2 = p2; | |
a6e0d253 | 569 | |
5f503e5f DS |
570 | if (!strcmp(map1->name, map2->name)) |
571 | return true; | |
a6e0d253 | 572 | |
74df8d6d | 573 | return false; |
a6e0d253 | 574 | } |
518f0eb1 | 575 | |
d62a17ae | 576 | enum route_map_upd8_type { |
577 | ROUTE_MAP_ADD = 1, | |
578 | ROUTE_MAP_DEL, | |
579 | }; | |
518f0eb1 DS |
580 | |
581 | /* all possible route-map dependency types */ | |
d62a17ae | 582 | enum route_map_dep_type { |
583 | ROUTE_MAP_DEP_RMAP = 1, | |
584 | ROUTE_MAP_DEP_CLIST, | |
585 | ROUTE_MAP_DEP_ECLIST, | |
586 | ROUTE_MAP_DEP_LCLIST, | |
587 | ROUTE_MAP_DEP_PLIST, | |
588 | ROUTE_MAP_DEP_ASPATH, | |
589 | ROUTE_MAP_DEP_FILTER, | |
590 | ROUTE_MAP_DEP_MAX, | |
591 | }; | |
592 | ||
593 | struct route_map_dep { | |
594 | char *dep_name; | |
595 | struct hash *dep_rmap_hash; | |
596 | struct hash *this_hash; /* ptr to the hash structure this is part of */ | |
518f0eb1 | 597 | }; |
718e3744 | 598 | |
e2c8d6ce NT |
599 | struct route_map_dep_data { |
600 | /* Route-map name. | |
601 | */ | |
602 | char *rname; | |
603 | /* Count of number of sequences of this | |
604 | * route-map that depend on the same entity. | |
605 | */ | |
606 | uint16_t refcnt; | |
607 | }; | |
608 | ||
518f0eb1 | 609 | /* Hashes maintaining dependency between various sublists used by route maps */ |
1b3e9a21 | 610 | static struct hash *route_map_dep_hash[ROUTE_MAP_DEP_MAX]; |
518f0eb1 | 611 | |
d8b87afe | 612 | static unsigned int route_map_dep_hash_make_key(const void *p); |
d62a17ae | 613 | static void route_map_clear_all_references(char *rmap_name); |
614 | static void route_map_rule_delete(struct route_map_rule_list *, | |
615 | struct route_map_rule *); | |
5913a17a DS |
616 | |
617 | #define DEBUG_ROUTEMAP 0x01 | |
618 | static uint32_t rmap_debug; | |
718e3744 | 619 | |
718e3744 | 620 | /* New route map allocation. Please note route map's name must be |
621 | specified. */ | |
d62a17ae | 622 | static struct route_map *route_map_new(const char *name) |
718e3744 | 623 | { |
d62a17ae | 624 | struct route_map *new; |
718e3744 | 625 | |
d62a17ae | 626 | new = XCALLOC(MTYPE_ROUTE_MAP, sizeof(struct route_map)); |
627 | new->name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
628 | QOBJ_REG(new, route_map); | |
629 | return new; | |
718e3744 | 630 | } |
631 | ||
632 | /* Add new name to route_map. */ | |
d62a17ae | 633 | static struct route_map *route_map_add(const char *name) |
634 | { | |
5f503e5f | 635 | struct route_map *map, *exist; |
d62a17ae | 636 | struct route_map_list *list; |
637 | ||
638 | map = route_map_new(name); | |
639 | list = &route_map_master; | |
640 | ||
5f503e5f DS |
641 | /* |
642 | * Add map to the hash | |
643 | * | |
644 | * If the map already exists in the hash, then we know that | |
645 | * FRR is now in a sequence of delete/create. | |
646 | * All FRR needs to do here is set the to_be_processed | |
647 | * bit (to inherit from the old one | |
648 | */ | |
649 | exist = hash_release(route_map_master_hash, map); | |
650 | if (exist) { | |
651 | map->to_be_processed = exist->to_be_processed; | |
652 | route_map_free_map(exist); | |
653 | } | |
d62a17ae | 654 | hash_get(route_map_master_hash, map, hash_alloc_intern); |
655 | ||
656 | /* Add new entry to the head of the list to match how it is added in the | |
657 | * hash table. This is to ensure that if the same route-map has been | |
658 | * created more than once and then marked for deletion (which can happen | |
659 | * if prior deletions haven't completed as BGP hasn't yet done the | |
660 | * route-map processing), the order of the entities is the same in both | |
661 | * the list and the hash table. Otherwise, since there is nothing to | |
662 | * distinguish between the two entries, the wrong entry could get freed. | |
663 | * TODO: This needs to be re-examined to handle it better - e.g., revive | |
664 | * a deleted entry if the route-map is created again. | |
665 | */ | |
666 | map->prev = NULL; | |
667 | map->next = list->head; | |
668 | if (list->head) | |
669 | list->head->prev = map; | |
670 | list->head = map; | |
671 | if (!list->tail) | |
672 | list->tail = map; | |
673 | ||
674 | /* Execute hook. */ | |
675 | if (route_map_master.add_hook) { | |
676 | (*route_map_master.add_hook)(name); | |
677 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_ADDED); | |
678 | } | |
e3ab8170 | 679 | |
49a08bb0 NT |
680 | if (!map->ipv4_prefix_table) |
681 | map->ipv4_prefix_table = route_table_init(); | |
682 | ||
683 | if (!map->ipv6_prefix_table) | |
684 | map->ipv6_prefix_table = route_table_init(); | |
685 | ||
5913a17a | 686 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 | 687 | zlog_debug("Add route-map %s", name); |
d62a17ae | 688 | return map; |
718e3744 | 689 | } |
690 | ||
518f0eb1 DS |
691 | /* this is supposed to be called post processing by |
692 | * the delete hook function. Don't invoke delete_hook | |
693 | * again in this routine. | |
694 | */ | |
d62a17ae | 695 | static void route_map_free_map(struct route_map *map) |
718e3744 | 696 | { |
d62a17ae | 697 | struct route_map_list *list; |
698 | struct route_map_index *index; | |
518f0eb1 | 699 | |
d62a17ae | 700 | if (map == NULL) |
701 | return; | |
a31ff449 | 702 | |
d62a17ae | 703 | while ((index = map->head) != NULL) |
704 | route_map_index_delete(index, 0); | |
718e3744 | 705 | |
5913a17a | 706 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
707 | zlog_debug("Deleting route-map %s", map->name); |
708 | ||
d62a17ae | 709 | list = &route_map_master; |
718e3744 | 710 | |
d62a17ae | 711 | QOBJ_UNREG(map); |
e80e7cce | 712 | |
d62a17ae | 713 | if (map->next) |
714 | map->next->prev = map->prev; | |
715 | else | |
716 | list->tail = map->prev; | |
718e3744 | 717 | |
d62a17ae | 718 | if (map->prev) |
719 | map->prev->next = map->next; | |
720 | else | |
721 | list->head = map->next; | |
718e3744 | 722 | |
d62a17ae | 723 | hash_release(route_map_master_hash, map); |
724 | XFREE(MTYPE_ROUTE_MAP_NAME, map->name); | |
725 | XFREE(MTYPE_ROUTE_MAP, map); | |
518f0eb1 | 726 | } |
718e3744 | 727 | |
518f0eb1 | 728 | /* Route map delete from list. */ |
a7282663 | 729 | void route_map_delete(struct route_map *map) |
518f0eb1 | 730 | { |
d62a17ae | 731 | struct route_map_index *index; |
732 | char *name; | |
518f0eb1 | 733 | |
d62a17ae | 734 | while ((index = map->head) != NULL) |
735 | route_map_index_delete(index, 0); | |
518f0eb1 | 736 | |
d62a17ae | 737 | name = map->name; |
738 | map->head = NULL; | |
518f0eb1 | 739 | |
d62a17ae | 740 | /* Clear all dependencies */ |
741 | route_map_clear_all_references(name); | |
e4694d0d | 742 | map->deleted = true; |
d62a17ae | 743 | /* Execute deletion hook. */ |
744 | if (route_map_master.delete_hook) { | |
745 | (*route_map_master.delete_hook)(name); | |
746 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_DELETED); | |
747 | } | |
718e3744 | 748 | |
d62a17ae | 749 | if (!map->to_be_processed) { |
750 | route_map_free_map(map); | |
751 | } | |
718e3744 | 752 | } |
753 | ||
754 | /* Lookup route map by route map name string. */ | |
d62a17ae | 755 | struct route_map *route_map_lookup_by_name(const char *name) |
718e3744 | 756 | { |
d62a17ae | 757 | struct route_map *map; |
758 | struct route_map tmp_map; | |
718e3744 | 759 | |
d62a17ae | 760 | if (!name) |
761 | return NULL; | |
518f0eb1 | 762 | |
5f503e5f | 763 | // map.deleted is false via memset |
6006b807 | 764 | memset(&tmp_map, 0, sizeof(tmp_map)); |
d62a17ae | 765 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
766 | map = hash_lookup(route_map_master_hash, &tmp_map); | |
767 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
5f503e5f DS |
768 | |
769 | if (map && map->deleted) | |
770 | return NULL; | |
771 | ||
d62a17ae | 772 | return map; |
718e3744 | 773 | } |
774 | ||
1de27621 DA |
775 | /* Simple helper to warn if route-map does not exist. */ |
776 | struct route_map *route_map_lookup_warn_noexist(struct vty *vty, const char *name) | |
777 | { | |
778 | struct route_map *route_map = route_map_lookup_by_name(name); | |
779 | ||
780 | if (!route_map) | |
781 | if (vty_shell_serv(vty)) | |
782 | vty_out(vty, "The route-map '%s' does not exist.\n", name); | |
783 | ||
784 | return route_map; | |
785 | } | |
786 | ||
7096e938 | 787 | int route_map_mark_updated(const char *name) |
518f0eb1 | 788 | { |
d62a17ae | 789 | struct route_map *map; |
790 | int ret = -1; | |
791 | struct route_map tmp_map; | |
518f0eb1 | 792 | |
d62a17ae | 793 | if (!name) |
794 | return (ret); | |
a6e0d253 | 795 | |
d62a17ae | 796 | map = route_map_lookup_by_name(name); |
a6e0d253 | 797 | |
e4694d0d DS |
798 | /* If we did not find the routemap with deleted=false try again |
799 | * with deleted=true | |
d62a17ae | 800 | */ |
801 | if (!map) { | |
6006b807 | 802 | memset(&tmp_map, 0, sizeof(tmp_map)); |
d62a17ae | 803 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
e4694d0d | 804 | tmp_map.deleted = true; |
d62a17ae | 805 | map = hash_lookup(route_map_master_hash, &tmp_map); |
806 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
807 | } | |
a6e0d253 | 808 | |
d62a17ae | 809 | if (map) { |
e4694d0d | 810 | map->to_be_processed = true; |
d62a17ae | 811 | ret = 0; |
812 | } | |
518f0eb1 | 813 | |
d62a17ae | 814 | return (ret); |
518f0eb1 DS |
815 | } |
816 | ||
d3822e79 | 817 | static void route_map_clear_updated(struct route_map *map) |
518f0eb1 | 818 | { |
d62a17ae | 819 | if (map) { |
e4694d0d | 820 | map->to_be_processed = false; |
d62a17ae | 821 | if (map->deleted) |
822 | route_map_free_map(map); | |
823 | } | |
518f0eb1 DS |
824 | } |
825 | ||
718e3744 | 826 | /* Lookup route map. If there isn't route map create one and return |
827 | it. */ | |
a7282663 | 828 | struct route_map *route_map_get(const char *name) |
718e3744 | 829 | { |
d62a17ae | 830 | struct route_map *map; |
718e3744 | 831 | |
d62a17ae | 832 | map = route_map_lookup_by_name(name); |
833 | if (map == NULL) | |
834 | map = route_map_add(name); | |
518f0eb1 | 835 | |
d62a17ae | 836 | return map; |
718e3744 | 837 | } |
838 | ||
46a69f10 | 839 | void route_map_walk_update_list(void (*route_map_update_fn)(char *name)) |
518f0eb1 | 840 | { |
d62a17ae | 841 | struct route_map *node; |
842 | struct route_map *nnode = NULL; | |
518f0eb1 | 843 | |
d62a17ae | 844 | for (node = route_map_master.head; node; node = nnode) { |
845 | if (node->to_be_processed) { | |
846 | /* DD: Should we add any thread yield code here */ | |
847 | route_map_update_fn(node->name); | |
848 | nnode = node->next; | |
849 | route_map_clear_updated(node); | |
850 | } else | |
851 | nnode = node->next; | |
518f0eb1 | 852 | } |
518f0eb1 DS |
853 | } |
854 | ||
718e3744 | 855 | /* Return route map's type string. */ |
d62a17ae | 856 | static const char *route_map_type_str(enum route_map_type type) |
857 | { | |
858 | switch (type) { | |
859 | case RMAP_PERMIT: | |
860 | return "permit"; | |
d62a17ae | 861 | case RMAP_DENY: |
862 | return "deny"; | |
ba1707ca | 863 | case RMAP_ANY: |
d62a17ae | 864 | return ""; |
d62a17ae | 865 | } |
4255dbe9 DS |
866 | |
867 | return ""; | |
718e3744 | 868 | } |
869 | ||
b68885f9 | 870 | static const char *route_map_cmd_result_str(enum route_map_cmd_result_t res) |
e3ab8170 AD |
871 | { |
872 | switch (res) { | |
873 | case RMAP_MATCH: | |
874 | return "match"; | |
e3ab8170 AD |
875 | case RMAP_NOMATCH: |
876 | return "no match"; | |
b68885f9 LK |
877 | case RMAP_NOOP: |
878 | return "noop"; | |
e3ab8170 AD |
879 | case RMAP_ERROR: |
880 | return "error"; | |
881 | case RMAP_OKAY: | |
882 | return "okay"; | |
883 | } | |
884 | ||
885 | return "invalid"; | |
886 | } | |
887 | ||
b68885f9 LK |
888 | static const char *route_map_result_str(route_map_result_t res) |
889 | { | |
890 | switch (res) { | |
891 | case RMAP_DENYMATCH: | |
892 | return "deny"; | |
893 | case RMAP_PERMITMATCH: | |
894 | return "permit"; | |
895 | } | |
896 | ||
897 | return "invalid"; | |
898 | } | |
899 | ||
5510e83b | 900 | /* show route-map */ |
856ed18a RW |
901 | static void vty_show_route_map_entry(struct vty *vty, struct route_map *map, |
902 | json_object *json) | |
d62a17ae | 903 | { |
904 | struct route_map_index *index; | |
905 | struct route_map_rule *rule; | |
856ed18a RW |
906 | json_object *json_rmap = NULL; |
907 | json_object *json_rules = NULL; | |
908 | ||
909 | if (json) { | |
910 | json_rmap = json_object_new_object(); | |
911 | json_object_object_add(json, map->name, json_rmap); | |
912 | ||
913 | json_rules = json_object_new_array(); | |
914 | json_object_int_add(json_rmap, "invoked", | |
915 | map->applied - map->applied_clear); | |
916 | json_object_boolean_add(json_rmap, "disabledOptimization", | |
917 | map->optimization_disabled); | |
918 | json_object_boolean_add(json_rmap, "processedChange", | |
919 | map->to_be_processed); | |
920 | json_object_object_add(json_rmap, "rules", json_rules); | |
921 | } else { | |
922 | vty_out(vty, | |
923 | "route-map: %s Invoked: %" PRIu64 | |
924 | " Optimization: %s Processed Change: %s\n", | |
925 | map->name, map->applied - map->applied_clear, | |
926 | map->optimization_disabled ? "disabled" : "enabled", | |
927 | map->to_be_processed ? "true" : "false"); | |
928 | } | |
d62a17ae | 929 | |
930 | for (index = map->head; index; index = index->next) { | |
856ed18a RW |
931 | if (json) { |
932 | json_object *json_rule; | |
933 | json_object *json_matches; | |
934 | json_object *json_sets; | |
935 | char action[BUFSIZ] = {}; | |
936 | ||
937 | json_rule = json_object_new_object(); | |
938 | json_object_array_add(json_rules, json_rule); | |
939 | ||
940 | json_object_int_add(json_rule, "sequenceNumber", | |
941 | index->pref); | |
942 | json_object_string_add(json_rule, "type", | |
943 | route_map_type_str(index->type)); | |
944 | json_object_int_add(json_rule, "invoked", | |
945 | index->applied | |
946 | - index->applied_clear); | |
947 | ||
948 | /* Description */ | |
949 | if (index->description) | |
950 | json_object_string_add(json_rule, "description", | |
951 | index->description); | |
952 | ||
953 | /* Match clauses */ | |
954 | json_matches = json_object_new_array(); | |
955 | json_object_object_add(json_rule, "matchClauses", | |
956 | json_matches); | |
957 | for (rule = index->match_list.head; rule; | |
958 | rule = rule->next) { | |
959 | char buf[BUFSIZ]; | |
960 | ||
961 | snprintf(buf, sizeof(buf), "%s %s", | |
962 | rule->cmd->str, rule->rule_str); | |
963 | json_array_string_add(json_matches, buf); | |
964 | } | |
965 | ||
966 | /* Set clauses */ | |
967 | json_sets = json_object_new_array(); | |
968 | json_object_object_add(json_rule, "setClauses", | |
969 | json_sets); | |
970 | for (rule = index->set_list.head; rule; | |
971 | rule = rule->next) { | |
972 | char buf[BUFSIZ]; | |
973 | ||
974 | snprintf(buf, sizeof(buf), "%s %s", | |
975 | rule->cmd->str, rule->rule_str); | |
976 | json_array_string_add(json_sets, buf); | |
977 | } | |
978 | ||
979 | /* Call clause */ | |
980 | if (index->nextrm) | |
981 | json_object_string_add(json_rule, "callClause", | |
982 | index->nextrm); | |
983 | ||
984 | /* Exit Policy */ | |
985 | if (index->exitpolicy == RMAP_GOTO) | |
986 | snprintf(action, sizeof(action), "Goto %d", | |
987 | index->nextpref); | |
988 | else if (index->exitpolicy == RMAP_NEXT) | |
989 | snprintf(action, sizeof(action), | |
990 | "Continue to next entry"); | |
991 | else if (index->exitpolicy == RMAP_EXIT) | |
992 | snprintf(action, sizeof(action), | |
993 | "Exit routemap"); | |
994 | if (action[0] != '\0') | |
995 | json_object_string_add(json_rule, "action", | |
996 | action); | |
997 | } else { | |
998 | vty_out(vty, " %s, sequence %d Invoked %" PRIu64 "\n", | |
999 | route_map_type_str(index->type), index->pref, | |
1000 | index->applied - index->applied_clear); | |
1001 | ||
1002 | /* Description */ | |
1003 | if (index->description) | |
1004 | vty_out(vty, " Description:\n %s\n", | |
1005 | index->description); | |
1006 | ||
1007 | /* Match clauses */ | |
1008 | vty_out(vty, " Match clauses:\n"); | |
1009 | for (rule = index->match_list.head; rule; | |
1010 | rule = rule->next) | |
1011 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
1012 | rule->rule_str); | |
1013 | ||
1014 | /* Set clauses */ | |
1015 | vty_out(vty, " Set clauses:\n"); | |
1016 | for (rule = index->set_list.head; rule; | |
1017 | rule = rule->next) | |
1018 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
1019 | rule->rule_str); | |
1020 | ||
1021 | /* Call clause */ | |
1022 | vty_out(vty, " Call clause:\n"); | |
1023 | if (index->nextrm) | |
1024 | vty_out(vty, " Call %s\n", index->nextrm); | |
1025 | ||
1026 | /* Exit Policy */ | |
1027 | vty_out(vty, " Action:\n"); | |
1028 | if (index->exitpolicy == RMAP_GOTO) | |
1029 | vty_out(vty, " Goto %d\n", index->nextpref); | |
1030 | else if (index->exitpolicy == RMAP_NEXT) | |
1031 | vty_out(vty, " Continue to next entry\n"); | |
1032 | else if (index->exitpolicy == RMAP_EXIT) | |
1033 | vty_out(vty, " Exit routemap\n"); | |
1034 | } | |
d62a17ae | 1035 | } |
1036 | } | |
1037 | ||
78b1bb5f QY |
1038 | static int sort_route_map(const void **map1, const void **map2) |
1039 | { | |
1040 | const struct route_map *m1 = *map1; | |
1041 | const struct route_map *m2 = *map2; | |
1042 | ||
1043 | return strcmp(m1->name, m2->name); | |
1044 | } | |
1045 | ||
856ed18a | 1046 | static int vty_show_route_map(struct vty *vty, const char *name, bool use_json) |
d62a17ae | 1047 | { |
1048 | struct route_map *map; | |
856ed18a RW |
1049 | json_object *json = NULL; |
1050 | json_object *json_proto = NULL; | |
d62a17ae | 1051 | |
856ed18a RW |
1052 | if (use_json) { |
1053 | json = json_object_new_object(); | |
1054 | json_proto = json_object_new_object(); | |
1055 | json_object_object_add(json, frr_protonameinst, json_proto); | |
1056 | } else | |
1057 | vty_out(vty, "%s:\n", frr_protonameinst); | |
279b0607 | 1058 | |
d62a17ae | 1059 | if (name) { |
1060 | map = route_map_lookup_by_name(name); | |
1061 | ||
1062 | if (map) { | |
856ed18a | 1063 | vty_show_route_map_entry(vty, map, json_proto); |
856ed18a | 1064 | } else if (!use_json) { |
d62a17ae | 1065 | vty_out(vty, "%s: 'route-map %s' not found\n", |
1066 | frr_protonameinst, name); | |
d62a17ae | 1067 | } |
1068 | } else { | |
78b1bb5f QY |
1069 | |
1070 | struct list *maplist = list_new(); | |
1071 | struct listnode *ln; | |
1072 | ||
d62a17ae | 1073 | for (map = route_map_master.head; map; map = map->next) |
78b1bb5f QY |
1074 | listnode_add(maplist, map); |
1075 | ||
1076 | list_sort(maplist, sort_route_map); | |
1077 | ||
1078 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
856ed18a | 1079 | vty_show_route_map_entry(vty, map, json_proto); |
78b1bb5f | 1080 | |
6a154c88 | 1081 | list_delete(&maplist); |
d62a17ae | 1082 | } |
856ed18a | 1083 | |
ad9df66c | 1084 | return vty_json(vty, json); |
5510e83b | 1085 | } |
1086 | ||
4a2a09d0 | 1087 | /* Unused route map details */ |
1088 | static int vty_show_unused_route_map(struct vty *vty) | |
1089 | { | |
1090 | struct list *maplist = list_new(); | |
1091 | struct listnode *ln; | |
1092 | struct route_map *map; | |
1093 | ||
1094 | for (map = route_map_master.head; map; map = map->next) { | |
1095 | /* If use_count is zero, No protocol is using this routemap. | |
1096 | * so adding to the list. | |
1097 | */ | |
1098 | if (!map->use_count) | |
1099 | listnode_add(maplist, map); | |
1100 | } | |
1101 | ||
1102 | if (maplist->count > 0) { | |
1103 | vty_out(vty, "\n%s:\n", frr_protonameinst); | |
1104 | list_sort(maplist, sort_route_map); | |
1105 | ||
1106 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
856ed18a | 1107 | vty_show_route_map_entry(vty, map, NULL); |
4a2a09d0 | 1108 | } else { |
1109 | vty_out(vty, "\n%s: None\n", frr_protonameinst); | |
1110 | } | |
1111 | ||
1112 | list_delete(&maplist); | |
1113 | return CMD_SUCCESS; | |
1114 | } | |
5510e83b | 1115 | |
718e3744 | 1116 | /* New route map allocation. Please note route map's name must be |
1117 | specified. */ | |
d62a17ae | 1118 | static struct route_map_index *route_map_index_new(void) |
718e3744 | 1119 | { |
d62a17ae | 1120 | struct route_map_index *new; |
718e3744 | 1121 | |
d62a17ae | 1122 | new = XCALLOC(MTYPE_ROUTE_MAP_INDEX, sizeof(struct route_map_index)); |
1123 | new->exitpolicy = RMAP_EXIT; /* Default to Cisco-style */ | |
54a35ff4 | 1124 | TAILQ_INIT(&new->rhclist); |
d62a17ae | 1125 | QOBJ_REG(new, route_map_index); |
1126 | return new; | |
718e3744 | 1127 | } |
1128 | ||
1129 | /* Free route map index. */ | |
a7282663 | 1130 | void route_map_index_delete(struct route_map_index *index, int notify) |
718e3744 | 1131 | { |
1c4eca64 | 1132 | struct routemap_hook_context *rhc; |
d62a17ae | 1133 | struct route_map_rule *rule; |
718e3744 | 1134 | |
d62a17ae | 1135 | QOBJ_UNREG(index); |
e80e7cce | 1136 | |
5913a17a | 1137 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
1138 | zlog_debug("Deleting route-map %s sequence %d", |
1139 | index->map->name, index->pref); | |
1140 | ||
f0951335 RZ |
1141 | /* Free route map entry description. */ |
1142 | XFREE(MTYPE_TMP, index->description); | |
1143 | ||
54a35ff4 | 1144 | /* Free route map northbound hook contexts. */ |
1c4eca64 RZ |
1145 | while ((rhc = TAILQ_FIRST(&index->rhclist)) != NULL) |
1146 | routemap_hook_context_free(rhc); | |
54a35ff4 | 1147 | |
d62a17ae | 1148 | /* Free route match. */ |
49a08bb0 | 1149 | while ((rule = index->match_list.head) != NULL) { |
819a23f9 | 1150 | if (IS_RULE_IPv4_PREFIX_LIST(rule->cmd->str)) |
2d26f094 NT |
1151 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_DELETED, |
1152 | index, AFI_IP, rule->rule_str); | |
819a23f9 | 1153 | else if (IS_RULE_IPv6_PREFIX_LIST(rule->cmd->str)) |
2d26f094 NT |
1154 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_DELETED, |
1155 | index, AFI_IP6, | |
1156 | rule->rule_str); | |
49a08bb0 | 1157 | |
d62a17ae | 1158 | route_map_rule_delete(&index->match_list, rule); |
49a08bb0 | 1159 | } |
718e3744 | 1160 | |
d62a17ae | 1161 | /* Free route set. */ |
1162 | while ((rule = index->set_list.head) != NULL) | |
1163 | route_map_rule_delete(&index->set_list, rule); | |
718e3744 | 1164 | |
d62a17ae | 1165 | /* Remove index from route map list. */ |
1166 | if (index->next) | |
1167 | index->next->prev = index->prev; | |
1168 | else | |
1169 | index->map->tail = index->prev; | |
718e3744 | 1170 | |
d62a17ae | 1171 | if (index->prev) |
1172 | index->prev->next = index->next; | |
1173 | else | |
1174 | index->map->head = index->next; | |
718e3744 | 1175 | |
d62a17ae | 1176 | /* Free 'char *nextrm' if not NULL */ |
0a22ddfb | 1177 | XFREE(MTYPE_ROUTE_MAP_NAME, index->nextrm); |
fee0f4c6 | 1178 | |
2d26f094 | 1179 | route_map_pfx_tbl_update(RMAP_EVENT_INDEX_DELETED, index, 0, NULL); |
49a08bb0 | 1180 | |
d62a17ae | 1181 | /* Execute event hook. */ |
1182 | if (route_map_master.event_hook && notify) { | |
097b5973 | 1183 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1184 | route_map_notify_dependencies(index->map->name, |
1185 | RMAP_EVENT_CALL_ADDED); | |
1186 | } | |
1187 | XFREE(MTYPE_ROUTE_MAP_INDEX, index); | |
718e3744 | 1188 | } |
1189 | ||
1190 | /* Lookup index from route map. */ | |
d62a17ae | 1191 | static struct route_map_index *route_map_index_lookup(struct route_map *map, |
1192 | enum route_map_type type, | |
1193 | int pref) | |
718e3744 | 1194 | { |
d62a17ae | 1195 | struct route_map_index *index; |
718e3744 | 1196 | |
d62a17ae | 1197 | for (index = map->head; index; index = index->next) |
1198 | if ((index->type == type || type == RMAP_ANY) | |
1199 | && index->pref == pref) | |
1200 | return index; | |
1201 | return NULL; | |
718e3744 | 1202 | } |
1203 | ||
1204 | /* Add new index to route map. */ | |
8cc4198f | 1205 | static struct route_map_index * |
d62a17ae | 1206 | route_map_index_add(struct route_map *map, enum route_map_type type, int pref) |
1207 | { | |
1208 | struct route_map_index *index; | |
1209 | struct route_map_index *point; | |
1210 | ||
1211 | /* Allocate new route map inex. */ | |
1212 | index = route_map_index_new(); | |
1213 | index->map = map; | |
1214 | index->type = type; | |
1215 | index->pref = pref; | |
1216 | ||
1217 | /* Compare preference. */ | |
1218 | for (point = map->head; point; point = point->next) | |
1219 | if (point->pref >= pref) | |
1220 | break; | |
1221 | ||
1222 | if (map->head == NULL) { | |
1223 | map->head = map->tail = index; | |
1224 | } else if (point == NULL) { | |
1225 | index->prev = map->tail; | |
1226 | map->tail->next = index; | |
1227 | map->tail = index; | |
1228 | } else if (point == map->head) { | |
1229 | index->next = map->head; | |
1230 | map->head->prev = index; | |
1231 | map->head = index; | |
1232 | } else { | |
1233 | index->next = point; | |
1234 | index->prev = point->prev; | |
1235 | if (point->prev) | |
1236 | point->prev->next = index; | |
1237 | point->prev = index; | |
1238 | } | |
1239 | ||
2d26f094 | 1240 | route_map_pfx_tbl_update(RMAP_EVENT_INDEX_ADDED, index, 0, NULL); |
49a08bb0 | 1241 | |
d62a17ae | 1242 | /* Execute event hook. */ |
1243 | if (route_map_master.event_hook) { | |
097b5973 | 1244 | (*route_map_master.event_hook)(map->name); |
d62a17ae | 1245 | route_map_notify_dependencies(map->name, RMAP_EVENT_CALL_ADDED); |
1246 | } | |
e3ab8170 | 1247 | |
5913a17a | 1248 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
1249 | zlog_debug("Route-map %s add sequence %d, type: %s", |
1250 | map->name, pref, route_map_type_str(type)); | |
1251 | ||
d62a17ae | 1252 | return index; |
718e3744 | 1253 | } |
1254 | ||
1255 | /* Get route map index. */ | |
a7282663 | 1256 | struct route_map_index * |
d62a17ae | 1257 | route_map_index_get(struct route_map *map, enum route_map_type type, int pref) |
718e3744 | 1258 | { |
d62a17ae | 1259 | struct route_map_index *index; |
718e3744 | 1260 | |
d62a17ae | 1261 | index = route_map_index_lookup(map, RMAP_ANY, pref); |
1262 | if (index && index->type != type) { | |
1263 | /* Delete index from route map. */ | |
1264 | route_map_index_delete(index, 1); | |
1265 | index = NULL; | |
1266 | } | |
1267 | if (index == NULL) | |
1268 | index = route_map_index_add(map, type, pref); | |
1269 | return index; | |
718e3744 | 1270 | } |
1271 | ||
1272 | /* New route map rule */ | |
d62a17ae | 1273 | static struct route_map_rule *route_map_rule_new(void) |
718e3744 | 1274 | { |
d62a17ae | 1275 | struct route_map_rule *new; |
718e3744 | 1276 | |
d62a17ae | 1277 | new = XCALLOC(MTYPE_ROUTE_MAP_RULE, sizeof(struct route_map_rule)); |
1278 | return new; | |
718e3744 | 1279 | } |
6b0655a2 | 1280 | |
718e3744 | 1281 | /* Install rule command to the match list. */ |
88711d8a | 1282 | void _route_map_install_match(struct route_map_rule_cmd_proxy *proxy) |
718e3744 | 1283 | { |
88711d8a | 1284 | rmap_cmd_name_add(rmap_match_cmds, proxy); |
718e3744 | 1285 | } |
1286 | ||
1287 | /* Install rule command to the set list. */ | |
88711d8a | 1288 | void _route_map_install_set(struct route_map_rule_cmd_proxy *proxy) |
718e3744 | 1289 | { |
88711d8a | 1290 | rmap_cmd_name_add(rmap_set_cmds, proxy); |
718e3744 | 1291 | } |
1292 | ||
1293 | /* Lookup rule command from match list. */ | |
364deb04 | 1294 | static const struct route_map_rule_cmd *route_map_lookup_match(const char *name) |
718e3744 | 1295 | { |
88711d8a DL |
1296 | struct route_map_rule_cmd refcmd = {.str = name}; |
1297 | struct route_map_rule_cmd_proxy ref = {.cmd = &refcmd}; | |
1298 | struct route_map_rule_cmd_proxy *res; | |
718e3744 | 1299 | |
88711d8a DL |
1300 | res = rmap_cmd_name_find(rmap_match_cmds, &ref); |
1301 | if (res) | |
1302 | return res->cmd; | |
d62a17ae | 1303 | return NULL; |
718e3744 | 1304 | } |
1305 | ||
1306 | /* Lookup rule command from set list. */ | |
364deb04 | 1307 | static const struct route_map_rule_cmd *route_map_lookup_set(const char *name) |
718e3744 | 1308 | { |
88711d8a DL |
1309 | struct route_map_rule_cmd refcmd = {.str = name}; |
1310 | struct route_map_rule_cmd_proxy ref = {.cmd = &refcmd}; | |
1311 | struct route_map_rule_cmd_proxy *res; | |
718e3744 | 1312 | |
88711d8a DL |
1313 | res = rmap_cmd_name_find(rmap_set_cmds, &ref); |
1314 | if (res) | |
1315 | return res->cmd; | |
d62a17ae | 1316 | return NULL; |
718e3744 | 1317 | } |
1318 | ||
1319 | /* Add match and set rule to rule list. */ | |
d62a17ae | 1320 | static void route_map_rule_add(struct route_map_rule_list *list, |
1321 | struct route_map_rule *rule) | |
718e3744 | 1322 | { |
d62a17ae | 1323 | rule->next = NULL; |
1324 | rule->prev = list->tail; | |
1325 | if (list->tail) | |
1326 | list->tail->next = rule; | |
1327 | else | |
1328 | list->head = rule; | |
1329 | list->tail = rule; | |
718e3744 | 1330 | } |
1331 | ||
1332 | /* Delete rule from rule list. */ | |
d62a17ae | 1333 | static void route_map_rule_delete(struct route_map_rule_list *list, |
1334 | struct route_map_rule *rule) | |
718e3744 | 1335 | { |
d62a17ae | 1336 | if (rule->cmd->func_free) |
1337 | (*rule->cmd->func_free)(rule->value); | |
718e3744 | 1338 | |
0a22ddfb | 1339 | XFREE(MTYPE_ROUTE_MAP_RULE_STR, rule->rule_str); |
718e3744 | 1340 | |
d62a17ae | 1341 | if (rule->next) |
1342 | rule->next->prev = rule->prev; | |
1343 | else | |
1344 | list->tail = rule->prev; | |
1345 | if (rule->prev) | |
1346 | rule->prev->next = rule->next; | |
1347 | else | |
1348 | list->head = rule->next; | |
718e3744 | 1349 | |
d62a17ae | 1350 | XFREE(MTYPE_ROUTE_MAP_RULE, rule); |
718e3744 | 1351 | } |
1352 | ||
1353 | /* strcmp wrapper function which don't crush even argument is NULL. */ | |
d62a17ae | 1354 | static int rulecmp(const char *dst, const char *src) |
1355 | { | |
1356 | if (dst == NULL) { | |
1357 | if (src == NULL) | |
1358 | return 0; | |
1359 | else | |
1360 | return 1; | |
1361 | } else { | |
1362 | if (src == NULL) | |
1363 | return 1; | |
1364 | else | |
1365 | return strcmp(dst, src); | |
1366 | } | |
718e3744 | 1367 | return 1; |
718e3744 | 1368 | } |
1369 | ||
518f0eb1 DS |
1370 | /* Use this to return the already specified argument for this match. This is |
1371 | * useful to get the specified argument with a route map match rule when the | |
1372 | * rule is being deleted and the argument is not provided. | |
1373 | */ | |
d62a17ae | 1374 | const char *route_map_get_match_arg(struct route_map_index *index, |
1375 | const char *match_name) | |
518f0eb1 | 1376 | { |
d62a17ae | 1377 | struct route_map_rule *rule; |
364deb04 | 1378 | const struct route_map_rule_cmd *cmd; |
518f0eb1 | 1379 | |
d62a17ae | 1380 | /* First lookup rule for add match statement. */ |
1381 | cmd = route_map_lookup_match(match_name); | |
1382 | if (cmd == NULL) | |
1383 | return NULL; | |
518f0eb1 | 1384 | |
d62a17ae | 1385 | for (rule = index->match_list.head; rule; rule = rule->next) |
1386 | if (rule->cmd == cmd && rule->rule_str != NULL) | |
1387 | return (rule->rule_str); | |
518f0eb1 | 1388 | |
95f7965d | 1389 | return NULL; |
518f0eb1 DS |
1390 | } |
1391 | ||
e2c8d6ce NT |
1392 | static route_map_event_t get_route_map_delete_event(route_map_event_t type) |
1393 | { | |
1394 | switch (type) { | |
1395 | case RMAP_EVENT_CALL_ADDED: | |
1396 | return RMAP_EVENT_CALL_DELETED; | |
1397 | case RMAP_EVENT_PLIST_ADDED: | |
1398 | return RMAP_EVENT_PLIST_DELETED; | |
1399 | case RMAP_EVENT_CLIST_ADDED: | |
1400 | return RMAP_EVENT_CLIST_DELETED; | |
1401 | case RMAP_EVENT_ECLIST_ADDED: | |
1402 | return RMAP_EVENT_ECLIST_DELETED; | |
1403 | case RMAP_EVENT_LLIST_ADDED: | |
1404 | return RMAP_EVENT_LLIST_DELETED; | |
1405 | case RMAP_EVENT_ASLIST_ADDED: | |
1406 | return RMAP_EVENT_ASLIST_DELETED; | |
1407 | case RMAP_EVENT_FILTER_ADDED: | |
1408 | return RMAP_EVENT_FILTER_DELETED; | |
1409 | case RMAP_EVENT_SET_ADDED: | |
1410 | case RMAP_EVENT_SET_DELETED: | |
1411 | case RMAP_EVENT_SET_REPLACED: | |
1412 | case RMAP_EVENT_MATCH_ADDED: | |
1413 | case RMAP_EVENT_MATCH_DELETED: | |
1414 | case RMAP_EVENT_MATCH_REPLACED: | |
1415 | case RMAP_EVENT_INDEX_ADDED: | |
1416 | case RMAP_EVENT_INDEX_DELETED: | |
1417 | case RMAP_EVENT_CALL_DELETED: | |
1418 | case RMAP_EVENT_PLIST_DELETED: | |
1419 | case RMAP_EVENT_CLIST_DELETED: | |
1420 | case RMAP_EVENT_ECLIST_DELETED: | |
1421 | case RMAP_EVENT_LLIST_DELETED: | |
1422 | case RMAP_EVENT_ASLIST_DELETED: | |
1423 | case RMAP_EVENT_FILTER_DELETED: | |
1424 | /* This function returns the appropriate 'deleted' event type | |
1425 | * for every 'added' event type passed to this function. | |
1426 | * This is done only for named entities used in the | |
1427 | * route-map match commands. | |
1428 | * This function is not to be invoked for any of the other event | |
1429 | * types. | |
1430 | */ | |
1431 | assert(0); | |
1432 | } | |
f232dd29 DS |
1433 | |
1434 | assert(0); | |
1435 | /* | |
1436 | * Return to make c happy but if we get here something has gone | |
1437 | * terribly terribly wrong, so yes this return makes no sense. | |
1438 | */ | |
1439 | return RMAP_EVENT_CALL_ADDED; | |
e2c8d6ce NT |
1440 | } |
1441 | ||
718e3744 | 1442 | /* Add match statement to route map. */ |
cda7187d DS |
1443 | enum rmap_compile_rets route_map_add_match(struct route_map_index *index, |
1444 | const char *match_name, | |
1445 | const char *match_arg, | |
1446 | route_map_event_t type) | |
d62a17ae | 1447 | { |
1448 | struct route_map_rule *rule; | |
1449 | struct route_map_rule *next; | |
364deb04 | 1450 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1451 | void *compile; |
e2c8d6ce | 1452 | int8_t delete_rmap_event_type = 0; |
909f3d56 | 1453 | const char *rule_key; |
d62a17ae | 1454 | |
1455 | /* First lookup rule for add match statement. */ | |
1456 | cmd = route_map_lookup_match(match_name); | |
1457 | if (cmd == NULL) | |
1458 | return RMAP_RULE_MISSING; | |
1459 | ||
1460 | /* Next call compile function for this match statement. */ | |
1461 | if (cmd->func_compile) { | |
1462 | compile = (*cmd->func_compile)(match_arg); | |
1463 | if (compile == NULL) | |
1464 | return RMAP_COMPILE_ERROR; | |
1465 | } else | |
1466 | compile = NULL; | |
909f3d56 | 1467 | /* use the compiled results if applicable */ |
1468 | if (compile && cmd->func_get_rmap_rule_key) | |
1469 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1470 | (compile); | |
1471 | else | |
1472 | rule_key = match_arg; | |
d62a17ae | 1473 | |
1474 | /* If argument is completely same ignore it. */ | |
1475 | for (rule = index->match_list.head; rule; rule = next) { | |
1476 | next = rule->next; | |
1477 | if (rule->cmd == cmd) { | |
6c3247bd NT |
1478 | /* If the configured route-map match rule is exactly |
1479 | * the same as the existing configuration then, | |
1480 | * ignore the duplicate configuration. | |
1481 | */ | |
30475121 | 1482 | if (rulecmp(match_arg, rule->rule_str) == 0) { |
6c3247bd NT |
1483 | if (cmd->func_free) |
1484 | (*cmd->func_free)(compile); | |
e2c8d6ce | 1485 | |
909f3d56 | 1486 | return RMAP_COMPILE_SUCCESS; |
e2c8d6ce NT |
1487 | } |
1488 | ||
49a08bb0 NT |
1489 | /* If IPv4 or IPv6 prefix-list match criteria |
1490 | * has been delete to the route-map index, update | |
1491 | * the route-map's prefix table. | |
1492 | */ | |
819a23f9 | 1493 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) |
49a08bb0 | 1494 | route_map_pfx_tbl_update( |
2d26f094 NT |
1495 | RMAP_EVENT_PLIST_DELETED, index, AFI_IP, |
1496 | rule->rule_str); | |
819a23f9 | 1497 | else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) |
49a08bb0 | 1498 | route_map_pfx_tbl_update( |
2d26f094 NT |
1499 | RMAP_EVENT_PLIST_DELETED, index, |
1500 | AFI_IP6, rule->rule_str); | |
49a08bb0 | 1501 | |
e2c8d6ce NT |
1502 | /* Remove the dependency of the route-map on the rule |
1503 | * that is being replaced. | |
1504 | */ | |
1505 | if (type >= RMAP_EVENT_CALL_ADDED) { | |
1506 | delete_rmap_event_type = | |
1507 | get_route_map_delete_event(type); | |
1508 | route_map_upd8_dependency( | |
1509 | delete_rmap_event_type, | |
02e7a369 | 1510 | rule->rule_str, |
e2c8d6ce | 1511 | index->map->name); |
6c3247bd NT |
1512 | } |
1513 | ||
d62a17ae | 1514 | route_map_rule_delete(&index->match_list, rule); |
d62a17ae | 1515 | } |
718e3744 | 1516 | } |
718e3744 | 1517 | |
d62a17ae | 1518 | /* Add new route map match rule. */ |
1519 | rule = route_map_rule_new(); | |
1520 | rule->cmd = cmd; | |
1521 | rule->value = compile; | |
1522 | if (match_arg) | |
1523 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, match_arg); | |
1524 | else | |
1525 | rule->rule_str = NULL; | |
718e3744 | 1526 | |
d62a17ae | 1527 | /* Add new route match rule to linked list. */ |
1528 | route_map_rule_add(&index->match_list, rule); | |
718e3744 | 1529 | |
49a08bb0 NT |
1530 | /* If IPv4 or IPv6 prefix-list match criteria |
1531 | * has been added to the route-map index, update | |
1532 | * the route-map's prefix table. | |
1533 | */ | |
819a23f9 | 1534 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) { |
2d26f094 | 1535 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_ADDED, index, AFI_IP, |
49a08bb0 | 1536 | match_arg); |
819a23f9 | 1537 | } else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) { |
2d26f094 | 1538 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_ADDED, index, AFI_IP6, |
49a08bb0 | 1539 | match_arg); |
49a08bb0 NT |
1540 | } |
1541 | ||
d62a17ae | 1542 | /* Execute event hook. */ |
1543 | if (route_map_master.event_hook) { | |
097b5973 | 1544 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1545 | route_map_notify_dependencies(index->map->name, |
1546 | RMAP_EVENT_CALL_ADDED); | |
1547 | } | |
909f3d56 | 1548 | if (type != RMAP_EVENT_MATCH_ADDED) |
1549 | route_map_upd8_dependency(type, rule_key, index->map->name); | |
718e3744 | 1550 | |
9ca25fed | 1551 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1552 | } |
1553 | ||
1554 | /* Delete specified route match rule. */ | |
cda7187d DS |
1555 | enum rmap_compile_rets route_map_delete_match(struct route_map_index *index, |
1556 | const char *match_name, | |
909f3d56 | 1557 | const char *match_arg, |
1558 | route_map_event_t type) | |
d62a17ae | 1559 | { |
1560 | struct route_map_rule *rule; | |
364deb04 | 1561 | const struct route_map_rule_cmd *cmd; |
909f3d56 | 1562 | const char *rule_key; |
d62a17ae | 1563 | |
1564 | cmd = route_map_lookup_match(match_name); | |
1565 | if (cmd == NULL) | |
e5b4b49e | 1566 | return RMAP_RULE_MISSING; |
d62a17ae | 1567 | |
1568 | for (rule = index->match_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1569 | if (rule->cmd == cmd && (rulecmp(rule->rule_str, match_arg) == 0 |
1570 | || match_arg == NULL)) { | |
d62a17ae | 1571 | /* Execute event hook. */ |
1572 | if (route_map_master.event_hook) { | |
097b5973 | 1573 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1574 | route_map_notify_dependencies( |
1575 | index->map->name, | |
1576 | RMAP_EVENT_CALL_ADDED); | |
1577 | } | |
909f3d56 | 1578 | if (cmd->func_get_rmap_rule_key) |
1579 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1580 | (rule->value); | |
1581 | else | |
1582 | rule_key = match_arg; | |
1583 | ||
1584 | if (type != RMAP_EVENT_MATCH_DELETED && rule_key) | |
1585 | route_map_upd8_dependency(type, rule_key, | |
1586 | index->map->name); | |
1587 | ||
1588 | route_map_rule_delete(&index->match_list, rule); | |
49a08bb0 NT |
1589 | |
1590 | /* If IPv4 or IPv6 prefix-list match criteria | |
3eca8715 | 1591 | * has been delete from the route-map index, update |
49a08bb0 NT |
1592 | * the route-map's prefix table. |
1593 | */ | |
819a23f9 | 1594 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) { |
49a08bb0 | 1595 | route_map_pfx_tbl_update( |
2d26f094 NT |
1596 | RMAP_EVENT_PLIST_DELETED, index, AFI_IP, |
1597 | match_arg); | |
819a23f9 | 1598 | } else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) { |
49a08bb0 | 1599 | route_map_pfx_tbl_update( |
2d26f094 NT |
1600 | RMAP_EVENT_PLIST_DELETED, index, |
1601 | AFI_IP6, match_arg); | |
49a08bb0 NT |
1602 | } |
1603 | ||
e5b4b49e | 1604 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1605 | } |
1606 | /* Can't find matched rule. */ | |
e5b4b49e | 1607 | return RMAP_RULE_MISSING; |
718e3744 | 1608 | } |
1609 | ||
1610 | /* Add route-map set statement to the route map. */ | |
cda7187d DS |
1611 | enum rmap_compile_rets route_map_add_set(struct route_map_index *index, |
1612 | const char *set_name, | |
1613 | const char *set_arg) | |
d62a17ae | 1614 | { |
1615 | struct route_map_rule *rule; | |
1616 | struct route_map_rule *next; | |
364deb04 | 1617 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1618 | void *compile; |
d62a17ae | 1619 | |
1620 | cmd = route_map_lookup_set(set_name); | |
1621 | if (cmd == NULL) | |
1622 | return RMAP_RULE_MISSING; | |
1623 | ||
1624 | /* Next call compile function for this match statement. */ | |
1625 | if (cmd->func_compile) { | |
1626 | compile = (*cmd->func_compile)(set_arg); | |
1627 | if (compile == NULL) | |
1628 | return RMAP_COMPILE_ERROR; | |
1629 | } else | |
1630 | compile = NULL; | |
1631 | ||
1632 | /* Add by WJL. if old set command of same kind exist, delete it first | |
1633 | to ensure only one set command of same kind exist under a | |
1634 | route_map_index. */ | |
1635 | for (rule = index->set_list.head; rule; rule = next) { | |
1636 | next = rule->next; | |
4255dbe9 | 1637 | if (rule->cmd == cmd) |
d62a17ae | 1638 | route_map_rule_delete(&index->set_list, rule); |
d62a17ae | 1639 | } |
1640 | ||
1641 | /* Add new route map match rule. */ | |
1642 | rule = route_map_rule_new(); | |
1643 | rule->cmd = cmd; | |
1644 | rule->value = compile; | |
1645 | if (set_arg) | |
1646 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, set_arg); | |
1647 | else | |
1648 | rule->rule_str = NULL; | |
1649 | ||
1650 | /* Add new route match rule to linked list. */ | |
1651 | route_map_rule_add(&index->set_list, rule); | |
1652 | ||
1653 | /* Execute event hook. */ | |
1654 | if (route_map_master.event_hook) { | |
097b5973 | 1655 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1656 | route_map_notify_dependencies(index->map->name, |
1657 | RMAP_EVENT_CALL_ADDED); | |
718e3744 | 1658 | } |
9ca25fed | 1659 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1660 | } |
1661 | ||
1662 | /* Delete route map set rule. */ | |
cda7187d DS |
1663 | enum rmap_compile_rets route_map_delete_set(struct route_map_index *index, |
1664 | const char *set_name, | |
1665 | const char *set_arg) | |
d62a17ae | 1666 | { |
1667 | struct route_map_rule *rule; | |
364deb04 | 1668 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1669 | |
1670 | cmd = route_map_lookup_set(set_name); | |
1671 | if (cmd == NULL) | |
e5b4b49e | 1672 | return RMAP_RULE_MISSING; |
d62a17ae | 1673 | |
1674 | for (rule = index->set_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1675 | if ((rule->cmd == cmd) && (rulecmp(rule->rule_str, set_arg) == 0 |
1676 | || set_arg == NULL)) { | |
d62a17ae | 1677 | route_map_rule_delete(&index->set_list, rule); |
1678 | /* Execute event hook. */ | |
1679 | if (route_map_master.event_hook) { | |
097b5973 | 1680 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1681 | route_map_notify_dependencies( |
1682 | index->map->name, | |
1683 | RMAP_EVENT_CALL_ADDED); | |
1684 | } | |
e5b4b49e | 1685 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1686 | } |
1687 | /* Can't find matched rule. */ | |
e5b4b49e | 1688 | return RMAP_RULE_MISSING; |
718e3744 | 1689 | } |
1690 | ||
b68885f9 LK |
1691 | static enum route_map_cmd_result_t |
1692 | route_map_apply_match(struct route_map_rule_list *match_list, | |
1782514f | 1693 | const struct prefix *prefix, void *object) |
b68885f9 LK |
1694 | { |
1695 | enum route_map_cmd_result_t ret = RMAP_NOMATCH; | |
1696 | struct route_map_rule *match; | |
1697 | bool is_matched = false; | |
1698 | ||
1699 | ||
1700 | /* Check all match rule and if there is no match rule, go to the | |
1701 | set statement. */ | |
1702 | if (!match_list->head) | |
1703 | ret = RMAP_MATCH; | |
1704 | else { | |
1705 | for (match = match_list->head; match; match = match->next) { | |
1706 | /* | |
1707 | * Try each match statement. If any match does not | |
1708 | * return RMAP_MATCH or RMAP_NOOP, return. | |
1709 | * Otherwise continue on to next match statement. | |
1710 | * All match statements must MATCH for | |
1711 | * end-result to be a match. | |
1712 | * (Exception:If match stmts result in a mix of | |
1713 | * MATCH/NOOP, then also end-result is a match) | |
1714 | * If all result in NOOP, end-result is NOOP. | |
1715 | */ | |
1716 | ret = (*match->cmd->func_apply)(match->value, prefix, | |
1782514f | 1717 | object); |
b68885f9 LK |
1718 | |
1719 | /* | |
1720 | * If the consolidated result of func_apply is: | |
1721 | * ----------------------------------------------- | |
1722 | * | MATCH | NOMATCH | NOOP | Final Result | | |
1723 | * ------------------------------------------------ | |
1724 | * | yes | yes | yes | NOMATCH | | |
1725 | * | no | no | yes | NOOP | | |
1726 | * | yes | no | yes | MATCH | | |
1727 | * | no | yes | yes | NOMATCH | | |
1728 | * |----------------------------------------------- | |
1729 | * | |
1730 | * Traditionally, all rules within route-map | |
1731 | * should match for it to MATCH. | |
1732 | * If there are noops within the route-map rules, | |
1733 | * it follows the above matrix. | |
1734 | * | |
1735 | * Eg: route-map rm1 permit 10 | |
1736 | * match rule1 | |
1737 | * match rule2 | |
1738 | * match rule3 | |
1739 | * .... | |
1740 | * route-map rm1 permit 20 | |
1741 | * match ruleX | |
1742 | * match ruleY | |
1743 | * ... | |
1744 | */ | |
1745 | ||
1746 | switch (ret) { | |
1747 | case RMAP_MATCH: | |
1748 | is_matched = true; | |
1749 | break; | |
1750 | ||
1751 | case RMAP_NOMATCH: | |
1752 | return ret; | |
1753 | ||
1754 | case RMAP_NOOP: | |
1755 | if (is_matched) | |
1756 | ret = RMAP_MATCH; | |
1757 | break; | |
1758 | ||
bde30e78 DS |
1759 | case RMAP_OKAY: |
1760 | case RMAP_ERROR: | |
b68885f9 LK |
1761 | break; |
1762 | } | |
1763 | ||
1764 | } | |
1765 | } | |
1766 | return ret; | |
1767 | } | |
1768 | ||
2d26f094 NT |
1769 | static struct list *route_map_get_index_list(struct route_node **rn, |
1770 | const struct prefix *prefix, | |
1771 | struct route_table *table) | |
819a23f9 NT |
1772 | { |
1773 | struct route_node *tmp_rn = NULL; | |
1774 | ||
1775 | if (!(*rn)) { | |
1776 | *rn = route_node_match(table, prefix); | |
1777 | ||
1778 | if (!(*rn)) | |
1779 | return NULL; | |
1780 | ||
1781 | if ((*rn)->info) | |
1782 | return (struct list *)((*rn)->info); | |
1783 | ||
1784 | /* If rn->info is NULL, get the parent. | |
1785 | * Store the rn in tmp_rn and unlock it later. | |
1786 | */ | |
1787 | tmp_rn = *rn; | |
1788 | } | |
1789 | ||
1790 | do { | |
1791 | *rn = (*rn)->parent; | |
1792 | if (tmp_rn) | |
1793 | route_unlock_node(tmp_rn); | |
1794 | ||
1795 | if (!(*rn)) | |
1796 | break; | |
1797 | ||
1798 | if ((*rn)->info) { | |
1799 | route_lock_node(*rn); | |
1800 | return (struct list *)((*rn)->info); | |
1801 | } | |
1802 | } while (!(*rn)->info); | |
1803 | ||
1804 | return NULL; | |
1805 | } | |
1806 | ||
1807 | /* | |
1808 | * This function returns the route-map index that best matches the prefix. | |
1809 | */ | |
a34ce5c5 MR |
1810 | static struct route_map_index * |
1811 | route_map_get_index(struct route_map *map, const struct prefix *prefix, | |
1812 | void *object, enum route_map_cmd_result_t *match_ret) | |
819a23f9 | 1813 | { |
a34ce5c5 | 1814 | enum route_map_cmd_result_t ret = RMAP_NOMATCH; |
819a23f9 NT |
1815 | struct list *candidate_rmap_list = NULL; |
1816 | struct route_node *rn = NULL; | |
1817 | struct listnode *ln = NULL, *nn = NULL; | |
1818 | struct route_map_index *index = NULL, *best_index = NULL; | |
1819 | struct route_map_index *head_index = NULL; | |
1820 | struct route_table *table = NULL; | |
a33b4d3f SW |
1821 | struct prefix conv; |
1822 | unsigned char family; | |
1823 | ||
1824 | /* | |
1825 | * Handling for matching evpn_routes in the prefix table. | |
1826 | * | |
1827 | * We convert type2/5 prefix to ipv4/6 prefix to do longest | |
1828 | * prefix matching on. | |
1829 | */ | |
1830 | if (prefix->family == AF_EVPN) { | |
1831 | if (evpn_prefix2prefix(prefix, &conv) != 0) | |
1832 | return NULL; | |
1833 | ||
1834 | prefix = &conv; | |
1835 | } | |
1836 | ||
1837 | ||
1838 | family = prefix->family; | |
819a23f9 NT |
1839 | |
1840 | if (family == AF_INET) | |
1841 | table = map->ipv4_prefix_table; | |
1842 | else | |
1843 | table = map->ipv6_prefix_table; | |
1844 | ||
1845 | if (!table) | |
1846 | return NULL; | |
1847 | ||
1848 | do { | |
2d26f094 NT |
1849 | candidate_rmap_list = |
1850 | route_map_get_index_list(&rn, prefix, table); | |
819a23f9 NT |
1851 | if (!rn) |
1852 | break; | |
1853 | ||
1854 | /* If the index at the head of the list is of seq higher | |
1855 | * than that in best_index, ignore the list and get the | |
1856 | * parent node's list. | |
1857 | */ | |
2d26f094 NT |
1858 | head_index = (struct route_map_index *)(listgetdata( |
1859 | listhead(candidate_rmap_list))); | |
1860 | if (best_index && head_index | |
1861 | && (best_index->pref < head_index->pref)) { | |
819a23f9 NT |
1862 | route_unlock_node(rn); |
1863 | continue; | |
1864 | } | |
1865 | ||
1866 | for (ALL_LIST_ELEMENTS(candidate_rmap_list, ln, nn, index)) { | |
1867 | /* If the index is of seq higher than that in | |
1868 | * best_index, ignore the list and get the parent | |
1869 | * node's list. | |
1870 | */ | |
1871 | if (best_index && (best_index->pref < index->pref)) | |
1872 | break; | |
1873 | ||
2d26f094 | 1874 | ret = route_map_apply_match(&index->match_list, prefix, |
1782514f | 1875 | object); |
819a23f9 NT |
1876 | |
1877 | if (ret == RMAP_MATCH) { | |
1878 | *match_ret = ret; | |
1879 | best_index = index; | |
1880 | break; | |
1881 | } else if (ret == RMAP_NOOP) { | |
1882 | /* | |
1883 | * If match_ret is denymatch, even if we see | |
1884 | * more noops, we retain this return value and | |
1885 | * return this eventually if there are no | |
1886 | * matches. | |
1410dd3f NT |
1887 | * If a best match route-map index already |
1888 | * exists, do not reset the match_ret. | |
819a23f9 | 1889 | */ |
1410dd3f | 1890 | if (!best_index && (*match_ret != RMAP_NOMATCH)) |
819a23f9 NT |
1891 | *match_ret = ret; |
1892 | } else { | |
1893 | /* | |
1894 | * ret is RMAP_NOMATCH. | |
1410dd3f NT |
1895 | * If a best match route-map index already |
1896 | * exists, do not reset the match_ret. | |
819a23f9 | 1897 | */ |
1410dd3f NT |
1898 | if (!best_index) |
1899 | *match_ret = ret; | |
819a23f9 NT |
1900 | } |
1901 | } | |
1902 | ||
1903 | route_unlock_node(rn); | |
1904 | ||
1905 | } while (rn); | |
1906 | ||
1907 | return best_index; | |
1908 | } | |
1909 | ||
2d26f094 NT |
1910 | static int route_map_candidate_list_cmp(struct route_map_index *idx1, |
1911 | struct route_map_index *idx2) | |
49a08bb0 | 1912 | { |
78946603 | 1913 | return idx1->pref - idx2->pref; |
49a08bb0 NT |
1914 | } |
1915 | ||
1916 | /* | |
1917 | * This function adds the route-map index into the default route's | |
1918 | * route-node in the route-map's IPv4/IPv6 prefix-table. | |
1919 | */ | |
2d26f094 NT |
1920 | static void route_map_pfx_table_add_default(afi_t afi, |
1921 | struct route_map_index *index) | |
49a08bb0 NT |
1922 | { |
1923 | struct route_node *rn = NULL; | |
1924 | struct list *rmap_candidate_list = NULL; | |
1925 | struct prefix p; | |
1926 | bool updated_rn = false; | |
1927 | struct route_table *table = NULL; | |
1928 | ||
1929 | memset(&p, 0, sizeof(p)); | |
1930 | p.family = afi2family(afi); | |
1931 | p.prefixlen = 0; | |
1932 | ||
1933 | if (p.family == AF_INET) { | |
1934 | table = index->map->ipv4_prefix_table; | |
1935 | if (!table) | |
1936 | index->map->ipv4_prefix_table = route_table_init(); | |
1937 | ||
1938 | table = index->map->ipv4_prefix_table; | |
1939 | } else { | |
1940 | table = index->map->ipv6_prefix_table; | |
1941 | if (!table) | |
1942 | index->map->ipv6_prefix_table = route_table_init(); | |
1943 | ||
1944 | table = index->map->ipv6_prefix_table; | |
1945 | } | |
1946 | ||
1947 | /* Add default route to table */ | |
1948 | rn = route_node_get(table, &p); | |
1949 | ||
1950 | if (!rn) | |
1951 | return; | |
1952 | ||
1953 | if (!rn->info) { | |
1954 | rmap_candidate_list = list_new(); | |
1955 | rmap_candidate_list->cmp = | |
1956 | (int (*)(void *, void *))route_map_candidate_list_cmp; | |
1957 | rn->info = rmap_candidate_list; | |
1958 | } else { | |
1959 | rmap_candidate_list = (struct list *)rn->info; | |
1960 | updated_rn = true; | |
1961 | } | |
1962 | ||
1963 | listnode_add_sort_nodup(rmap_candidate_list, index); | |
1964 | if (updated_rn) | |
1965 | route_unlock_node(rn); | |
1966 | } | |
1967 | ||
1968 | /* | |
1969 | * This function removes the route-map index from the default route's | |
1970 | * route-node in the route-map's IPv4/IPv6 prefix-table. | |
1971 | */ | |
2d26f094 NT |
1972 | static void route_map_pfx_table_del_default(afi_t afi, |
1973 | struct route_map_index *index) | |
49a08bb0 NT |
1974 | { |
1975 | struct route_node *rn = NULL; | |
1976 | struct list *rmap_candidate_list = NULL; | |
1977 | struct prefix p; | |
1978 | struct route_table *table = NULL; | |
1979 | ||
1980 | memset(&p, 0, sizeof(p)); | |
1981 | p.family = afi2family(afi); | |
1982 | p.prefixlen = 0; | |
1983 | ||
1984 | if (p.family == AF_INET) | |
1985 | table = index->map->ipv4_prefix_table; | |
1986 | else | |
1987 | table = index->map->ipv6_prefix_table; | |
1988 | ||
1989 | /* Remove RMAP index from default route in table */ | |
1990 | rn = route_node_lookup(table, &p); | |
1991 | if (!rn || !rn->info) | |
1992 | return; | |
1993 | ||
1994 | rmap_candidate_list = (struct list *)rn->info; | |
1995 | ||
1996 | listnode_delete(rmap_candidate_list, index); | |
1997 | ||
1998 | if (listcount(rmap_candidate_list) == 0) { | |
1999 | list_delete(&rmap_candidate_list); | |
2000 | rn->info = NULL; | |
2001 | route_unlock_node(rn); | |
2002 | } | |
2003 | route_unlock_node(rn); | |
2004 | } | |
2005 | ||
2006 | /* | |
2007 | * This function adds the route-map index to the route-node for | |
2008 | * the prefix-entry in the route-map's IPv4/IPv6 prefix-table. | |
2009 | */ | |
2d26f094 NT |
2010 | static void route_map_pfx_table_add(struct route_table *table, |
2011 | struct route_map_index *index, | |
2012 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
2013 | { |
2014 | struct route_node *rn = NULL; | |
2015 | struct list *rmap_candidate_list = NULL; | |
2016 | bool updated_rn = false; | |
2017 | ||
2018 | rn = route_node_get(table, &pentry->prefix); | |
2019 | if (!rn) | |
2020 | return; | |
2021 | ||
2022 | if (!rn->info) { | |
2023 | rmap_candidate_list = list_new(); | |
2024 | rmap_candidate_list->cmp = | |
2025 | (int (*)(void *, void *))route_map_candidate_list_cmp; | |
2026 | rn->info = rmap_candidate_list; | |
2027 | } else { | |
2028 | rmap_candidate_list = (struct list *)rn->info; | |
2029 | updated_rn = true; | |
2030 | } | |
2031 | ||
2032 | listnode_add_sort_nodup(rmap_candidate_list, index); | |
2033 | if (updated_rn) | |
2034 | route_unlock_node(rn); | |
2035 | } | |
2036 | ||
2037 | /* | |
2038 | * This function removes the route-map index from the route-node for | |
2039 | * the prefix-entry in the route-map's IPv4/IPv6 prefix-table. | |
2040 | */ | |
2d26f094 NT |
2041 | static void route_map_pfx_table_del(struct route_table *table, |
2042 | struct route_map_index *index, | |
2043 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
2044 | { |
2045 | struct route_node *rn = NULL; | |
2046 | struct list *rmap_candidate_list = NULL; | |
2047 | ||
2048 | rn = route_node_lookup(table, &pentry->prefix); | |
2049 | if (!rn || !rn->info) | |
2050 | return; | |
2051 | ||
2052 | rmap_candidate_list = (struct list *)rn->info; | |
2053 | ||
2054 | listnode_delete(rmap_candidate_list, index); | |
2055 | ||
2056 | if (listcount(rmap_candidate_list) == 0) { | |
2057 | list_delete(&rmap_candidate_list); | |
2058 | rn->info = NULL; | |
2059 | route_unlock_node(rn); | |
2060 | } | |
2061 | route_unlock_node(rn); | |
2062 | } | |
2063 | ||
3eca8715 NT |
2064 | /* This function checks for the presence of an IPv4 prefix-list |
2065 | * match rule in the given route-map index. | |
49a08bb0 | 2066 | */ |
3eca8715 | 2067 | static bool route_map_is_ip_pfx_list_rule_present(struct route_map_index *index) |
49a08bb0 NT |
2068 | { |
2069 | struct route_map_rule_list *match_list = NULL; | |
2070 | struct route_map_rule *rule = NULL; | |
2071 | ||
2072 | match_list = &index->match_list; | |
2073 | for (rule = match_list->head; rule; rule = rule->next) | |
3eca8715 | 2074 | if (IS_RULE_IPv4_PREFIX_LIST(rule->cmd->str)) |
49a08bb0 NT |
2075 | return true; |
2076 | ||
2077 | return false; | |
2078 | } | |
2079 | ||
3eca8715 NT |
2080 | /* This function checks for the presence of an IPv6 prefix-list |
2081 | * match rule in the given route-map index. | |
49a08bb0 | 2082 | */ |
3eca8715 NT |
2083 | static bool |
2084 | route_map_is_ipv6_pfx_list_rule_present(struct route_map_index *index) | |
49a08bb0 NT |
2085 | { |
2086 | struct route_map_rule_list *match_list = NULL; | |
2087 | struct route_map_rule *rule = NULL; | |
2088 | ||
2089 | match_list = &index->match_list; | |
2090 | for (rule = match_list->head; rule; rule = rule->next) | |
3eca8715 | 2091 | if (IS_RULE_IPv6_PREFIX_LIST(rule->cmd->str)) |
49a08bb0 NT |
2092 | return true; |
2093 | ||
2094 | return false; | |
2095 | } | |
2096 | ||
2097 | /* This function does the following: | |
2098 | * 1) If plist_name is not present, search for a IPv4 or IPv6 prefix-list | |
2099 | * match clause (based on the afi passed to this foo) and get the | |
2100 | * prefix-list name. | |
2101 | * 2) Look up the prefix-list using the name. | |
2102 | * 3) If the prefix-list is not found then, add the index to the IPv4/IPv6 | |
2103 | * default-route's node in the trie (based on the afi passed to this foo). | |
2104 | * 4) If the prefix-list is found then, remove the index from the IPv4/IPv6 | |
2105 | * default-route's node in the trie (based on the afi passed to this foo). | |
2106 | * 5) If a prefix-entry is passed then, create a route-node for this entry and | |
2107 | * add this index to the route-node. | |
2108 | * 6) If prefix-entry is not passed then, for every prefix-entry in the | |
2109 | * prefix-list, create a route-node for this entry and | |
2110 | * add this index to the route-node. | |
2111 | */ | |
2d26f094 NT |
2112 | static void route_map_add_plist_entries(afi_t afi, |
2113 | struct route_map_index *index, | |
2114 | const char *plist_name, | |
2115 | struct prefix_list_entry *entry) | |
49a08bb0 NT |
2116 | { |
2117 | struct route_map_rule_list *match_list = NULL; | |
2118 | struct route_map_rule *match = NULL; | |
2119 | struct prefix_list *plist = NULL; | |
2120 | struct prefix_list_entry *pentry = NULL; | |
2121 | bool plist_rule_is_present = false; | |
2122 | ||
2123 | if (!plist_name) { | |
2124 | match_list = &index->match_list; | |
2125 | ||
2126 | for (match = match_list->head; match; match = match->next) { | |
819a23f9 | 2127 | if (afi == AFI_IP) { |
2d26f094 | 2128 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2129 | plist_rule_is_present = true; |
2130 | break; | |
2d26f094 | 2131 | } |
819a23f9 | 2132 | } else { |
2d26f094 | 2133 | if (IS_RULE_IPv6_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2134 | plist_rule_is_present = true; |
2135 | break; | |
2d26f094 | 2136 | } |
49a08bb0 NT |
2137 | } |
2138 | } | |
2139 | ||
2140 | if (plist_rule_is_present) | |
2141 | plist = prefix_list_lookup(afi, match->rule_str); | |
2142 | } else { | |
2143 | plist = prefix_list_lookup(afi, plist_name); | |
2144 | } | |
2145 | ||
2146 | if (!plist) { | |
2147 | route_map_pfx_table_add_default(afi, index); | |
2148 | return; | |
2149 | } | |
2150 | ||
4718791c TA |
2151 | /* Default entry should be deleted only if the first entry of the |
2152 | * prefix-list is created. | |
2153 | */ | |
2154 | if (entry) { | |
2155 | if (plist->count == 1) | |
2156 | route_map_pfx_table_del_default(afi, index); | |
2157 | } else { | |
2158 | route_map_pfx_table_del_default(afi, index); | |
2159 | } | |
49a08bb0 NT |
2160 | |
2161 | if (entry) { | |
2162 | if (afi == AFI_IP) { | |
2d26f094 NT |
2163 | route_map_pfx_table_add(index->map->ipv4_prefix_table, |
2164 | index, entry); | |
49a08bb0 | 2165 | } else { |
2d26f094 NT |
2166 | route_map_pfx_table_add(index->map->ipv6_prefix_table, |
2167 | index, entry); | |
49a08bb0 NT |
2168 | } |
2169 | } else { | |
2170 | for (pentry = plist->head; pentry; pentry = pentry->next) { | |
2171 | if (afi == AFI_IP) { | |
2172 | route_map_pfx_table_add( | |
2d26f094 NT |
2173 | index->map->ipv4_prefix_table, index, |
2174 | pentry); | |
49a08bb0 NT |
2175 | } else { |
2176 | route_map_pfx_table_add( | |
2d26f094 NT |
2177 | index->map->ipv6_prefix_table, index, |
2178 | pentry); | |
49a08bb0 NT |
2179 | } |
2180 | } | |
2181 | } | |
2182 | } | |
2183 | ||
2184 | /* This function does the following: | |
2185 | * 1) If plist_name is not present, search for a IPv4 or IPv6 prefix-list | |
2186 | * match clause (based on the afi passed to this foo) and get the | |
2187 | * prefix-list name. | |
2188 | * 2) Look up the prefix-list using the name. | |
2189 | * 3) If the prefix-list is not found then, delete the index from the IPv4/IPv6 | |
2190 | * default-route's node in the trie (based on the afi passed to this foo). | |
2191 | * 4) If a prefix-entry is passed then, remove this index from the route-node | |
2192 | * for the prefix in this prefix-entry. | |
2193 | * 5) If prefix-entry is not passed then, for every prefix-entry in the | |
2194 | * prefix-list, remove this index from the route-node | |
2195 | * for the prefix in this prefix-entry. | |
2196 | */ | |
2d26f094 NT |
2197 | static void route_map_del_plist_entries(afi_t afi, |
2198 | struct route_map_index *index, | |
2199 | const char *plist_name, | |
2200 | struct prefix_list_entry *entry) | |
49a08bb0 NT |
2201 | { |
2202 | struct route_map_rule_list *match_list = NULL; | |
2203 | struct route_map_rule *match = NULL; | |
2204 | struct prefix_list *plist = NULL; | |
2205 | struct prefix_list_entry *pentry = NULL; | |
2206 | bool plist_rule_is_present = false; | |
2207 | ||
2208 | if (!plist_name) { | |
2209 | match_list = &index->match_list; | |
2210 | ||
2211 | for (match = match_list->head; match; match = match->next) { | |
819a23f9 | 2212 | if (afi == AFI_IP) { |
2d26f094 | 2213 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2214 | plist_rule_is_present = true; |
2215 | break; | |
2d26f094 | 2216 | } |
819a23f9 | 2217 | } else { |
2d26f094 | 2218 | if (IS_RULE_IPv6_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2219 | plist_rule_is_present = true; |
2220 | break; | |
2d26f094 | 2221 | } |
49a08bb0 NT |
2222 | } |
2223 | } | |
2224 | ||
2225 | if (plist_rule_is_present) | |
2226 | plist = prefix_list_lookup(afi, match->rule_str); | |
2227 | } else { | |
2228 | plist = prefix_list_lookup(afi, plist_name); | |
2229 | } | |
2230 | ||
2231 | if (!plist) { | |
2232 | route_map_pfx_table_del_default(afi, index); | |
2233 | return; | |
2234 | } | |
2235 | ||
2236 | if (entry) { | |
2237 | if (afi == AFI_IP) { | |
2d26f094 NT |
2238 | route_map_pfx_table_del(index->map->ipv4_prefix_table, |
2239 | index, entry); | |
49a08bb0 | 2240 | } else { |
2d26f094 NT |
2241 | route_map_pfx_table_del(index->map->ipv6_prefix_table, |
2242 | index, entry); | |
49a08bb0 NT |
2243 | } |
2244 | } else { | |
2245 | for (pentry = plist->head; pentry; pentry = pentry->next) { | |
2246 | if (afi == AFI_IP) { | |
2247 | route_map_pfx_table_del( | |
2d26f094 NT |
2248 | index->map->ipv4_prefix_table, index, |
2249 | pentry); | |
49a08bb0 NT |
2250 | } else { |
2251 | route_map_pfx_table_del( | |
2d26f094 NT |
2252 | index->map->ipv6_prefix_table, index, |
2253 | pentry); | |
49a08bb0 NT |
2254 | } |
2255 | } | |
2256 | } | |
2257 | } | |
2258 | ||
2259 | /* | |
2260 | * This function handles the cases where a prefix-list is added/removed | |
2261 | * as a match command from a particular route-map index. | |
2262 | * It updates the prefix-table of the route-map accordingly. | |
2263 | */ | |
2d26f094 NT |
2264 | static void route_map_trie_update(afi_t afi, route_map_event_t event, |
2265 | struct route_map_index *index, | |
2266 | const char *plist_name) | |
49a08bb0 NT |
2267 | { |
2268 | if (event == RMAP_EVENT_PLIST_ADDED) { | |
2269 | if (afi == AFI_IP) { | |
3eca8715 | 2270 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) { |
2d26f094 | 2271 | route_map_pfx_table_del_default(AFI_IP6, index); |
49a08bb0 NT |
2272 | route_map_add_plist_entries(afi, index, |
2273 | plist_name, NULL); | |
2274 | } else { | |
2275 | route_map_del_plist_entries(AFI_IP6, index, | |
2276 | NULL, NULL); | |
2277 | } | |
2278 | } else { | |
3eca8715 | 2279 | if (!route_map_is_ip_pfx_list_rule_present(index)) { |
2d26f094 | 2280 | route_map_pfx_table_del_default(AFI_IP, index); |
49a08bb0 NT |
2281 | route_map_add_plist_entries(afi, index, |
2282 | plist_name, NULL); | |
2283 | } else { | |
2d26f094 NT |
2284 | route_map_del_plist_entries(AFI_IP, index, NULL, |
2285 | NULL); | |
49a08bb0 NT |
2286 | } |
2287 | } | |
2288 | } else if (event == RMAP_EVENT_PLIST_DELETED) { | |
2289 | if (afi == AFI_IP) { | |
2d26f094 NT |
2290 | route_map_del_plist_entries(afi, index, plist_name, |
2291 | NULL); | |
49a08bb0 | 2292 | |
3eca8715 NT |
2293 | /* If IPv6 prefix-list match rule is not present, |
2294 | * add this index to the IPv4 default route's trie | |
2295 | * node. | |
2296 | * Also, add this index to the trie nodes created | |
2297 | * for each of the prefix-entries within the IPv6 | |
2298 | * prefix-list, if the IPv6 prefix-list match rule | |
2299 | * is present. Else, add this index to the IPv6 | |
2300 | * default route's trie node. | |
2301 | */ | |
2302 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) | |
49a08bb0 NT |
2303 | route_map_pfx_table_add_default(afi, index); |
2304 | ||
3eca8715 | 2305 | route_map_add_plist_entries(AFI_IP6, index, NULL, NULL); |
49a08bb0 | 2306 | } else { |
2d26f094 NT |
2307 | route_map_del_plist_entries(afi, index, plist_name, |
2308 | NULL); | |
49a08bb0 | 2309 | |
3eca8715 NT |
2310 | /* If IPv4 prefix-list match rule is not present, |
2311 | * add this index to the IPv6 default route's trie | |
2312 | * node. | |
2313 | * Also, add this index to the trie nodes created | |
2314 | * for each of the prefix-entries within the IPv4 | |
2315 | * prefix-list, if the IPv4 prefix-list match rule | |
2316 | * is present. Else, add this index to the IPv4 | |
2317 | * default route's trie node. | |
2318 | */ | |
2319 | if (!route_map_is_ip_pfx_list_rule_present(index)) | |
49a08bb0 NT |
2320 | route_map_pfx_table_add_default(afi, index); |
2321 | ||
3eca8715 | 2322 | route_map_add_plist_entries(AFI_IP, index, NULL, NULL); |
49a08bb0 NT |
2323 | } |
2324 | } | |
2325 | } | |
2326 | ||
2327 | /* | |
2328 | * This function handles the cases where a route-map index and | |
2329 | * prefix-list is added/removed. | |
2330 | * It updates the prefix-table of the route-map accordingly. | |
2331 | */ | |
2d26f094 NT |
2332 | static void route_map_pfx_tbl_update(route_map_event_t event, |
2333 | struct route_map_index *index, afi_t afi, | |
2334 | const char *plist_name) | |
49a08bb0 NT |
2335 | { |
2336 | struct route_map *rmap = NULL; | |
2337 | ||
2338 | if (!index) | |
2339 | return; | |
2340 | ||
2341 | if (event == RMAP_EVENT_INDEX_ADDED) { | |
2342 | route_map_pfx_table_add_default(AFI_IP, index); | |
2343 | route_map_pfx_table_add_default(AFI_IP6, index); | |
2344 | return; | |
2345 | } | |
2346 | ||
2347 | if (event == RMAP_EVENT_INDEX_DELETED) { | |
2348 | route_map_pfx_table_del_default(AFI_IP, index); | |
2349 | route_map_pfx_table_del_default(AFI_IP6, index); | |
2350 | ||
2d26f094 | 2351 | if ((index->map->head == NULL) && (index->map->tail == NULL)) { |
49a08bb0 NT |
2352 | rmap = index->map; |
2353 | ||
2354 | if (rmap->ipv4_prefix_table) { | |
2355 | route_table_finish(rmap->ipv4_prefix_table); | |
2356 | rmap->ipv4_prefix_table = NULL; | |
2357 | } | |
2358 | ||
2359 | if (rmap->ipv6_prefix_table) { | |
2360 | route_table_finish(rmap->ipv6_prefix_table); | |
2361 | rmap->ipv6_prefix_table = NULL; | |
2362 | } | |
2363 | } | |
2364 | return; | |
2365 | } | |
2366 | ||
2367 | /* Handle prefix-list match rule addition/deletion. | |
2368 | */ | |
2d26f094 | 2369 | route_map_trie_update(afi, event, index, plist_name); |
49a08bb0 NT |
2370 | } |
2371 | ||
2372 | /* | |
2373 | * This function handles the cases where a new prefix-entry is added to | |
2374 | * a prefix-list or, an existing prefix-entry is removed from the prefix-list. | |
2375 | * It updates the prefix-table of the route-map accordingly. | |
2376 | */ | |
2d26f094 NT |
2377 | static void route_map_pentry_update(route_map_event_t event, |
2378 | const char *plist_name, | |
2379 | struct route_map_index *index, | |
2380 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
2381 | { |
2382 | struct prefix_list *plist = NULL; | |
2383 | afi_t afi; | |
2384 | unsigned char family = pentry->prefix.family; | |
2385 | ||
2386 | if (family == AF_INET) { | |
2387 | afi = AFI_IP; | |
2388 | plist = prefix_list_lookup(AFI_IP, plist_name); | |
2389 | } else { | |
2390 | afi = AFI_IP6; | |
2391 | plist = prefix_list_lookup(AFI_IP6, plist_name); | |
2392 | } | |
2393 | ||
2394 | if (event == RMAP_EVENT_PLIST_ADDED) { | |
3eca8715 NT |
2395 | if (afi == AFI_IP) { |
2396 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) | |
2397 | route_map_add_plist_entries(afi, index, | |
2398 | plist_name, pentry); | |
49a08bb0 | 2399 | } else { |
3eca8715 NT |
2400 | if (!route_map_is_ip_pfx_list_rule_present(index)) |
2401 | route_map_add_plist_entries(afi, index, | |
2402 | plist_name, pentry); | |
49a08bb0 NT |
2403 | } |
2404 | } else if (event == RMAP_EVENT_PLIST_DELETED) { | |
2405 | route_map_del_plist_entries(afi, index, plist_name, pentry); | |
2406 | ||
2407 | if (plist->count == 1) { | |
2408 | if (afi == AFI_IP) { | |
3eca8715 NT |
2409 | if (!route_map_is_ipv6_pfx_list_rule_present( |
2410 | index)) | |
49a08bb0 NT |
2411 | route_map_pfx_table_add_default(afi, |
2412 | index); | |
2413 | } else { | |
3eca8715 NT |
2414 | if (!route_map_is_ip_pfx_list_rule_present( |
2415 | index)) | |
49a08bb0 NT |
2416 | route_map_pfx_table_add_default(afi, |
2417 | index); | |
2418 | } | |
2419 | } | |
2420 | } | |
2421 | } | |
2422 | ||
1ac88792 | 2423 | static void route_map_pentry_process_dependency(struct hash_bucket *bucket, |
2d26f094 | 2424 | void *data) |
49a08bb0 NT |
2425 | { |
2426 | char *rmap_name = NULL; | |
2427 | struct route_map *rmap = NULL; | |
2428 | struct route_map_index *index = NULL; | |
2429 | struct route_map_rule_list *match_list = NULL; | |
2430 | struct route_map_rule *match = NULL; | |
2431 | struct route_map_dep_data *dep_data = NULL; | |
2432 | struct route_map_pentry_dep *pentry_dep = | |
2d26f094 | 2433 | (struct route_map_pentry_dep *)data; |
49a08bb0 NT |
2434 | unsigned char family = pentry_dep->pentry->prefix.family; |
2435 | ||
1ac88792 | 2436 | dep_data = (struct route_map_dep_data *)bucket->data; |
49a08bb0 NT |
2437 | if (!dep_data) |
2438 | return; | |
2439 | ||
2440 | rmap_name = dep_data->rname; | |
2441 | rmap = route_map_lookup_by_name(rmap_name); | |
2442 | if (!rmap || !rmap->head) | |
2443 | return; | |
2444 | ||
2445 | for (index = rmap->head; index; index = index->next) { | |
2446 | match_list = &index->match_list; | |
2447 | ||
2448 | if (!match_list) | |
2449 | continue; | |
2450 | ||
2451 | for (match = match_list->head; match; match = match->next) { | |
2452 | if (strcmp(match->rule_str, pentry_dep->plist_name) | |
2d26f094 NT |
2453 | == 0) { |
2454 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str) | |
2455 | && family == AF_INET) { | |
49a08bb0 | 2456 | route_map_pentry_update( |
2d26f094 NT |
2457 | pentry_dep->event, |
2458 | pentry_dep->plist_name, index, | |
2459 | pentry_dep->pentry); | |
819a23f9 | 2460 | } else if (IS_RULE_IPv6_PREFIX_LIST( |
2d26f094 NT |
2461 | match->cmd->str) |
2462 | && family == AF_INET6) { | |
49a08bb0 | 2463 | route_map_pentry_update( |
2d26f094 NT |
2464 | pentry_dep->event, |
2465 | pentry_dep->plist_name, index, | |
2466 | pentry_dep->pentry); | |
49a08bb0 NT |
2467 | } |
2468 | } | |
2469 | } | |
2470 | } | |
2471 | } | |
2472 | ||
2d26f094 NT |
2473 | void route_map_notify_pentry_dependencies(const char *affected_name, |
2474 | struct prefix_list_entry *pentry, | |
2475 | route_map_event_t event) | |
49a08bb0 NT |
2476 | { |
2477 | struct route_map_dep *dep = NULL; | |
2478 | struct hash *upd8_hash = NULL; | |
2479 | struct route_map_pentry_dep pentry_dep; | |
2480 | ||
2481 | if (!affected_name || !pentry) | |
2482 | return; | |
2483 | ||
2484 | upd8_hash = route_map_get_dep_hash(event); | |
2485 | if (!upd8_hash) | |
2486 | return; | |
2487 | ||
2488 | dep = (struct route_map_dep *)hash_get(upd8_hash, (void *)affected_name, | |
2489 | NULL); | |
2490 | if (dep) { | |
2491 | if (!dep->this_hash) | |
2492 | dep->this_hash = upd8_hash; | |
2493 | ||
6006b807 | 2494 | memset(&pentry_dep, 0, sizeof(pentry_dep)); |
49a08bb0 NT |
2495 | pentry_dep.pentry = pentry; |
2496 | pentry_dep.plist_name = affected_name; | |
2497 | pentry_dep.event = event; | |
2498 | ||
2499 | hash_iterate(dep->dep_rmap_hash, | |
2500 | route_map_pentry_process_dependency, | |
2501 | (void *)&pentry_dep); | |
2502 | } | |
2503 | } | |
2504 | ||
3bf1c917 | 2505 | /* Apply route map's each index to the object. |
2506 | ||
2507 | The matrix for a route-map looks like this: | |
2508 | (note, this includes the description for the "NEXT" | |
2509 | and "GOTO" frobs now | |
d62a17ae | 2510 | |
b68885f9 LK |
2511 | | Match | No Match | No op |
2512 | |-----------|--------------|------- | |
2513 | permit | action | cont | cont. | |
2514 | | | default:deny | default:permit | |
2515 | -------------------+----------------------- | |
2516 | | deny | cont | cont. | |
2517 | deny | | default:deny | default:permit | |
2518 | |-----------|--------------|-------- | |
d62a17ae | 2519 | |
fee0f4c6 | 2520 | action) |
2521 | -Apply Set statements, accept route | |
2522 | -If Call statement is present jump to the specified route-map, if it | |
d62a17ae | 2523 | denies the route we finish. |
fee0f4c6 | 2524 | -If NEXT is specified, goto NEXT statement |
2525 | -If GOTO is specified, goto the first clause where pref > nextpref | |
2526 | -If nothing is specified, do as Cisco and finish | |
2527 | deny) | |
2528 | -Route is denied by route-map. | |
2529 | cont) | |
2530 | -Goto Next index | |
d62a17ae | 2531 | |
3bf1c917 | 2532 | If we get no matches after we've processed all updates, then the route |
2533 | is dropped too. | |
d62a17ae | 2534 | |
fee0f4c6 | 2535 | Some notes on the new "CALL", "NEXT" and "GOTO" |
2536 | call WORD - If this clause is matched, then the set statements | |
d62a17ae | 2537 | are executed and then we jump to route-map 'WORD'. If |
2538 | this route-map denies the route, we finish, in other | |
2539 | case we | |
2540 | do whatever the exit policy (EXIT, NEXT or GOTO) tells. | |
3bf1c917 | 2541 | on-match next - If this clause is matched, then the set statements |
d62a17ae | 2542 | are executed and then we drop through to the next clause |
214d8a60 | 2543 | on-match goto n - If this clause is matched, then the set statements |
d62a17ae | 2544 | are executed and then we goto the nth clause, or the |
2545 | first clause greater than this. In order to ensure | |
2546 | route-maps *always* exit, you cannot jump backwards. | |
2547 | Sorry ;) | |
2548 | ||
3bf1c917 | 2549 | We need to make sure our route-map processing matches the above |
718e3744 | 2550 | */ |
c2125847 IR |
2551 | route_map_result_t route_map_apply_ext(struct route_map *map, |
2552 | const struct prefix *prefix, | |
a633fb57 IS |
2553 | void *match_object, void *set_object, |
2554 | int *pref) | |
d62a17ae | 2555 | { |
2556 | static int recursion = 0; | |
b68885f9 LK |
2557 | enum route_map_cmd_result_t match_ret = RMAP_NOMATCH; |
2558 | route_map_result_t ret = RMAP_PERMITMATCH; | |
819a23f9 NT |
2559 | struct route_map_index *index = NULL; |
2560 | struct route_map_rule *set = NULL; | |
819a23f9 | 2561 | bool skip_match_clause = false; |
d62a17ae | 2562 | |
2563 | if (recursion > RMAP_RECURSION_LIMIT) { | |
040c7c3a | 2564 | flog_warn( |
450971aa | 2565 | EC_LIB_RMAP_RECURSION_LIMIT, |
d62a17ae | 2566 | "route-map recursion limit (%d) reached, discarding route", |
2567 | RMAP_RECURSION_LIMIT); | |
2568 | recursion = 0; | |
2569 | return RMAP_DENYMATCH; | |
2570 | } | |
2571 | ||
b68885f9 | 2572 | if (map == NULL || map->head == NULL) { |
e3ab8170 AD |
2573 | ret = RMAP_DENYMATCH; |
2574 | goto route_map_apply_end; | |
2575 | } | |
d62a17ae | 2576 | |
279b0607 | 2577 | map->applied++; |
819a23f9 | 2578 | |
2d26f094 NT |
2579 | if ((!map->optimization_disabled) |
2580 | && (map->ipv4_prefix_table || map->ipv6_prefix_table)) { | |
c2125847 | 2581 | index = route_map_get_index(map, prefix, match_object, |
a34ce5c5 | 2582 | &match_ret); |
819a23f9 | 2583 | if (index) { |
284a6f5f | 2584 | index->applied++; |
5913a17a | 2585 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
819a23f9 | 2586 | zlog_debug( |
2dbe669b DA |
2587 | "Best match route-map: %s, sequence: %d for pfx: %pFX, result: %s", |
2588 | map->name, index->pref, prefix, | |
819a23f9 NT |
2589 | route_map_cmd_result_str(match_ret)); |
2590 | } else { | |
5913a17a | 2591 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
2d26f094 | 2592 | zlog_debug( |
2dbe669b DA |
2593 | "No best match sequence for pfx: %pFX in route-map: %s, result: %s", |
2594 | prefix, map->name, | |
2d26f094 | 2595 | route_map_cmd_result_str(match_ret)); |
819a23f9 NT |
2596 | /* |
2597 | * No index matches this prefix. Return deny unless, | |
2598 | * match_ret = RMAP_NOOP. | |
2599 | */ | |
2600 | if (match_ret == RMAP_NOOP) | |
2601 | ret = RMAP_PERMITMATCH; | |
2602 | else | |
2603 | ret = RMAP_DENYMATCH; | |
2604 | goto route_map_apply_end; | |
e3ab8170 | 2605 | } |
819a23f9 NT |
2606 | skip_match_clause = true; |
2607 | } else { | |
2608 | index = map->head; | |
2609 | } | |
2610 | ||
2611 | for (; index; index = index->next) { | |
a8f58eb6 | 2612 | if (!skip_match_clause) { |
00aef028 | 2613 | index->applied++; |
819a23f9 NT |
2614 | /* Apply this index. */ |
2615 | match_ret = route_map_apply_match(&index->match_list, | |
c2125847 | 2616 | prefix, match_object); |
5913a17a | 2617 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) { |
819a23f9 | 2618 | zlog_debug( |
2dbe669b DA |
2619 | "Route-map: %s, sequence: %d, prefix: %pFX, result: %s", |
2620 | map->name, index->pref, prefix, | |
819a23f9 NT |
2621 | route_map_cmd_result_str(match_ret)); |
2622 | } | |
2623 | } else | |
2624 | skip_match_clause = false; | |
2625 | ||
e3ab8170 | 2626 | |
d62a17ae | 2627 | /* Now we apply the matrix from above */ |
b68885f9 LK |
2628 | if (match_ret == RMAP_NOOP) |
2629 | /* | |
2630 | * Do not change the return value. Retain the previous | |
2631 | * return value. Previous values can be: | |
2632 | * 1)permitmatch (if a nomatch was never | |
2633 | * seen before in this route-map.) | |
2634 | * 2)denymatch (if a nomatch was seen earlier in one | |
2635 | * of the previous sequences) | |
2636 | */ | |
2637 | ||
2638 | /* | |
2639 | * 'cont' from matrix - continue to next route-map | |
2640 | * sequence | |
2641 | */ | |
d62a17ae | 2642 | continue; |
b68885f9 LK |
2643 | else if (match_ret == RMAP_NOMATCH) { |
2644 | ||
2645 | /* | |
2646 | * The return value is now changed to denymatch. | |
2647 | * So from here on out, even if we see more noops, | |
2648 | * we retain this return value and return this | |
2649 | * eventually if there are no matches. | |
2650 | */ | |
2651 | ret = RMAP_DENYMATCH; | |
2652 | ||
2653 | /* | |
2654 | * 'cont' from matrix - continue to next route-map | |
2655 | * sequence | |
2656 | */ | |
2657 | continue; | |
2658 | } else if (match_ret == RMAP_MATCH) { | |
d62a17ae | 2659 | if (index->type == RMAP_PERMIT) |
2660 | /* 'action' */ | |
2661 | { | |
b68885f9 LK |
2662 | /* Match succeeded, rmap is of type permit */ |
2663 | ret = RMAP_PERMITMATCH; | |
2664 | ||
d62a17ae | 2665 | /* permit+match must execute sets */ |
2666 | for (set = index->set_list.head; set; | |
2667 | set = set->next) | |
b68885f9 LK |
2668 | /* |
2669 | * set cmds return RMAP_OKAY or | |
2670 | * RMAP_ERROR. We do not care if | |
2671 | * set succeeded or not. So, ignore | |
2672 | * return code. | |
2673 | */ | |
1782514f | 2674 | (void)(*set->cmd->func_apply)( |
c2125847 | 2675 | set->value, prefix, set_object); |
d62a17ae | 2676 | |
2677 | /* Call another route-map if available */ | |
2678 | if (index->nextrm) { | |
2679 | struct route_map *nextrm = | |
2680 | route_map_lookup_by_name( | |
2681 | index->nextrm); | |
2682 | ||
2683 | if (nextrm) /* Target route-map found, | |
2684 | jump to it */ | |
2685 | { | |
2686 | recursion++; | |
c2125847 IR |
2687 | ret = route_map_apply_ext( |
2688 | nextrm, prefix, | |
2689 | match_object, | |
a633fb57 | 2690 | set_object, NULL); |
d62a17ae | 2691 | recursion--; |
2692 | } | |
2693 | ||
2694 | /* If nextrm returned 'deny', finish. */ | |
2695 | if (ret == RMAP_DENYMATCH) | |
e3ab8170 | 2696 | goto route_map_apply_end; |
d62a17ae | 2697 | } |
2698 | ||
2699 | switch (index->exitpolicy) { | |
2700 | case RMAP_EXIT: | |
e3ab8170 | 2701 | goto route_map_apply_end; |
d62a17ae | 2702 | case RMAP_NEXT: |
2703 | continue; | |
2704 | case RMAP_GOTO: { | |
2705 | /* Find the next clause to jump to */ | |
2706 | struct route_map_index *next = | |
2707 | index->next; | |
2708 | int nextpref = index->nextpref; | |
2709 | ||
2710 | while (next && next->pref < nextpref) { | |
2711 | index = next; | |
2712 | next = next->next; | |
2713 | } | |
2714 | if (next == NULL) { | |
2715 | /* No clauses match! */ | |
e3ab8170 | 2716 | goto route_map_apply_end; |
d62a17ae | 2717 | } |
2718 | } | |
2719 | } | |
2720 | } else if (index->type == RMAP_DENY) | |
2721 | /* 'deny' */ | |
2722 | { | |
e3ab8170 AD |
2723 | ret = RMAP_DENYMATCH; |
2724 | goto route_map_apply_end; | |
d62a17ae | 2725 | } |
2726 | } | |
2727 | } | |
e3ab8170 AD |
2728 | |
2729 | route_map_apply_end: | |
5913a17a | 2730 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
2dbe669b DA |
2731 | zlog_debug("Route-map: %s, prefix: %pFX, result: %s", |
2732 | (map ? map->name : "null"), prefix, | |
e3ab8170 | 2733 | route_map_result_str(ret)); |
e3ab8170 | 2734 | |
a633fb57 IS |
2735 | if (pref) { |
2736 | if (index != NULL && ret == RMAP_PERMITMATCH) | |
2737 | *pref = index->pref; | |
2738 | else | |
2739 | *pref = 65536; | |
2740 | } | |
2741 | ||
e3ab8170 | 2742 | return (ret); |
d62a17ae | 2743 | } |
2744 | ||
2745 | void route_map_add_hook(void (*func)(const char *)) | |
2746 | { | |
2747 | route_map_master.add_hook = func; | |
2748 | } | |
2749 | ||
2750 | void route_map_delete_hook(void (*func)(const char *)) | |
2751 | { | |
2752 | route_map_master.delete_hook = func; | |
2753 | } | |
2754 | ||
097b5973 | 2755 | void route_map_event_hook(void (*func)(const char *name)) |
d62a17ae | 2756 | { |
2757 | route_map_master.event_hook = func; | |
718e3744 | 2758 | } |
2759 | ||
518f0eb1 | 2760 | /* Routines for route map dependency lists and dependency processing */ |
74df8d6d | 2761 | static bool route_map_rmap_hash_cmp(const void *p1, const void *p2) |
518f0eb1 | 2762 | { |
e2c8d6ce NT |
2763 | return strcmp(((const struct route_map_dep_data *)p1)->rname, |
2764 | ((const struct route_map_dep_data *)p2)->rname) | |
2765 | == 0; | |
518f0eb1 DS |
2766 | } |
2767 | ||
74df8d6d | 2768 | static bool route_map_dep_hash_cmp(const void *p1, const void *p2) |
518f0eb1 DS |
2769 | { |
2770 | ||
d62a17ae | 2771 | return (strcmp(((const struct route_map_dep *)p1)->dep_name, |
2772 | (const char *)p2) | |
2773 | == 0); | |
518f0eb1 DS |
2774 | } |
2775 | ||
e3b78da8 | 2776 | static void route_map_clear_reference(struct hash_bucket *bucket, void *arg) |
518f0eb1 | 2777 | { |
e2c8d6ce NT |
2778 | struct route_map_dep *dep = bucket->data; |
2779 | struct route_map_dep_data *dep_data = NULL, tmp_dep_data; | |
518f0eb1 | 2780 | |
6006b807 | 2781 | memset(&tmp_dep_data, 0, sizeof(tmp_dep_data)); |
db8db580 DS |
2782 | tmp_dep_data.rname = arg; |
2783 | dep_data = hash_release(dep->dep_rmap_hash, &tmp_dep_data); | |
2784 | if (dep_data) { | |
5913a17a | 2785 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
af87aff6 DS |
2786 | zlog_debug("Clearing reference for %s to %s count: %d", |
2787 | dep->dep_name, tmp_dep_data.rname, | |
2788 | dep_data->refcnt); | |
2789 | ||
db8db580 DS |
2790 | XFREE(MTYPE_ROUTE_MAP_NAME, dep_data->rname); |
2791 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, dep_data); | |
2792 | } | |
2793 | if (!dep->dep_rmap_hash->count) { | |
2794 | dep = hash_release(dep->this_hash, (void *)dep->dep_name); | |
2795 | hash_free(dep->dep_rmap_hash); | |
2796 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
2797 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
518f0eb1 | 2798 | } |
d62a17ae | 2799 | } |
2800 | ||
2801 | static void route_map_clear_all_references(char *rmap_name) | |
2802 | { | |
2803 | int i; | |
2804 | ||
5913a17a | 2805 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
af87aff6 DS |
2806 | zlog_debug("Clearing references for %s", rmap_name); |
2807 | ||
d62a17ae | 2808 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
2809 | hash_iterate(route_map_dep_hash[i], route_map_clear_reference, | |
2810 | (void *)rmap_name); | |
518f0eb1 | 2811 | } |
518f0eb1 DS |
2812 | } |
2813 | ||
e2c8d6ce NT |
2814 | static unsigned int route_map_dep_data_hash_make_key(const void *p) |
2815 | { | |
2816 | const struct route_map_dep_data *dep_data = p; | |
2817 | ||
2818 | return string_hash_make(dep_data->rname); | |
2819 | } | |
2820 | ||
d62a17ae | 2821 | static void *route_map_dep_hash_alloc(void *p) |
518f0eb1 | 2822 | { |
d62a17ae | 2823 | char *dep_name = (char *)p; |
2824 | struct route_map_dep *dep_entry; | |
2825 | ||
2826 | dep_entry = XCALLOC(MTYPE_ROUTE_MAP_DEP, sizeof(struct route_map_dep)); | |
2827 | dep_entry->dep_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
996c9314 | 2828 | dep_entry->dep_rmap_hash = |
e2c8d6ce | 2829 | hash_create_size(8, route_map_dep_data_hash_make_key, |
996c9314 | 2830 | route_map_rmap_hash_cmp, "Route Map Dep Hash"); |
d62a17ae | 2831 | dep_entry->this_hash = NULL; |
2832 | ||
e2c8d6ce | 2833 | return dep_entry; |
d62a17ae | 2834 | } |
518f0eb1 | 2835 | |
d62a17ae | 2836 | static void *route_map_name_hash_alloc(void *p) |
2837 | { | |
e2c8d6ce NT |
2838 | struct route_map_dep_data *dep_data = NULL, *tmp_dep_data = NULL; |
2839 | ||
2840 | dep_data = XCALLOC(MTYPE_ROUTE_MAP_DEP_DATA, | |
2841 | sizeof(struct route_map_dep_data)); | |
2842 | tmp_dep_data = p; | |
2843 | dep_data->rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, tmp_dep_data->rname); | |
2844 | return dep_data; | |
518f0eb1 DS |
2845 | } |
2846 | ||
d8b87afe | 2847 | static unsigned int route_map_dep_hash_make_key(const void *p) |
518f0eb1 | 2848 | { |
d62a17ae | 2849 | return (string_hash_make((char *)p)); |
2850 | } | |
518f0eb1 | 2851 | |
e3b78da8 | 2852 | static void route_map_print_dependency(struct hash_bucket *bucket, void *data) |
d62a17ae | 2853 | { |
e2c8d6ce NT |
2854 | struct route_map_dep_data *dep_data = bucket->data; |
2855 | char *rmap_name = dep_data->rname; | |
2856 | char *dep_name = data; | |
518f0eb1 | 2857 | |
15569c58 | 2858 | zlog_debug("%s: Dependency for %s: %s", __func__, dep_name, rmap_name); |
518f0eb1 DS |
2859 | } |
2860 | ||
d62a17ae | 2861 | static int route_map_dep_update(struct hash *dephash, const char *dep_name, |
2862 | const char *rmap_name, route_map_event_t type) | |
518f0eb1 | 2863 | { |
d62a17ae | 2864 | struct route_map_dep *dep = NULL; |
d62a17ae | 2865 | char *dname, *rname; |
2866 | int ret = 0; | |
e2c8d6ce NT |
2867 | struct route_map_dep_data *dep_data = NULL, *ret_dep_data = NULL; |
2868 | struct route_map_dep_data tmp_dep_data; | |
d62a17ae | 2869 | |
2870 | dname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
2871 | rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
2872 | ||
2873 | switch (type) { | |
2874 | case RMAP_EVENT_PLIST_ADDED: | |
2875 | case RMAP_EVENT_CLIST_ADDED: | |
2876 | case RMAP_EVENT_ECLIST_ADDED: | |
2877 | case RMAP_EVENT_ASLIST_ADDED: | |
2878 | case RMAP_EVENT_LLIST_ADDED: | |
2879 | case RMAP_EVENT_CALL_ADDED: | |
2880 | case RMAP_EVENT_FILTER_ADDED: | |
5913a17a | 2881 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
2882 | zlog_debug("Adding dependency for filter %s in route-map %s", |
2883 | dep_name, rmap_name); | |
d62a17ae | 2884 | dep = (struct route_map_dep *)hash_get( |
2885 | dephash, dname, route_map_dep_hash_alloc); | |
2886 | if (!dep) { | |
2887 | ret = -1; | |
2888 | goto out; | |
2889 | } | |
2890 | ||
2891 | if (!dep->this_hash) | |
2892 | dep->this_hash = dephash; | |
2893 | ||
6006b807 | 2894 | memset(&tmp_dep_data, 0, sizeof(tmp_dep_data)); |
e2c8d6ce NT |
2895 | tmp_dep_data.rname = rname; |
2896 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
2897 | if (!dep_data) | |
2898 | dep_data = hash_get(dep->dep_rmap_hash, &tmp_dep_data, | |
2899 | route_map_name_hash_alloc); | |
2900 | ||
2901 | dep_data->refcnt++; | |
d62a17ae | 2902 | break; |
2903 | case RMAP_EVENT_PLIST_DELETED: | |
2904 | case RMAP_EVENT_CLIST_DELETED: | |
2905 | case RMAP_EVENT_ECLIST_DELETED: | |
2906 | case RMAP_EVENT_ASLIST_DELETED: | |
2907 | case RMAP_EVENT_LLIST_DELETED: | |
2908 | case RMAP_EVENT_CALL_DELETED: | |
2909 | case RMAP_EVENT_FILTER_DELETED: | |
5913a17a | 2910 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
2911 | zlog_debug("Deleting dependency for filter %s in route-map %s", |
2912 | dep_name, rmap_name); | |
d62a17ae | 2913 | dep = (struct route_map_dep *)hash_get(dephash, dname, NULL); |
2914 | if (!dep) { | |
2915 | goto out; | |
2916 | } | |
2917 | ||
6006b807 | 2918 | memset(&tmp_dep_data, 0, sizeof(tmp_dep_data)); |
e2c8d6ce NT |
2919 | tmp_dep_data.rname = rname; |
2920 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
9149c635 DS |
2921 | /* |
2922 | * If dep_data is NULL then something has gone seriously | |
2923 | * wrong in route-map handling. Note it and prevent | |
2924 | * the crash. | |
2925 | */ | |
2926 | if (!dep_data) { | |
2927 | zlog_warn( | |
2928 | "route-map dependency for route-map %s: %s is not correct", | |
2929 | rmap_name, dep_name); | |
c415a4dc | 2930 | goto out; |
9149c635 | 2931 | } |
c415a4dc | 2932 | |
9149c635 | 2933 | dep_data->refcnt--; |
e2c8d6ce NT |
2934 | |
2935 | if (!dep_data->refcnt) { | |
2936 | ret_dep_data = hash_release(dep->dep_rmap_hash, | |
2937 | &tmp_dep_data); | |
2938 | if (ret_dep_data) { | |
2939 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2940 | ret_dep_data->rname); | |
2941 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, ret_dep_data); | |
2942 | } | |
2943 | } | |
d62a17ae | 2944 | |
2945 | if (!dep->dep_rmap_hash->count) { | |
2946 | dep = hash_release(dephash, dname); | |
2947 | hash_free(dep->dep_rmap_hash); | |
2948 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
2949 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
d62a17ae | 2950 | } |
2951 | break; | |
ba1707ca DS |
2952 | case RMAP_EVENT_SET_ADDED: |
2953 | case RMAP_EVENT_SET_DELETED: | |
2954 | case RMAP_EVENT_SET_REPLACED: | |
2955 | case RMAP_EVENT_MATCH_ADDED: | |
2956 | case RMAP_EVENT_MATCH_DELETED: | |
2957 | case RMAP_EVENT_MATCH_REPLACED: | |
2958 | case RMAP_EVENT_INDEX_ADDED: | |
2959 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 2960 | break; |
2961 | } | |
2962 | ||
2963 | if (dep) { | |
5913a17a | 2964 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
d62a17ae | 2965 | hash_iterate(dep->dep_rmap_hash, |
2966 | route_map_print_dependency, dname); | |
2967 | } | |
2968 | ||
2969 | out: | |
2970 | XFREE(MTYPE_ROUTE_MAP_NAME, rname); | |
2971 | XFREE(MTYPE_ROUTE_MAP_NAME, dname); | |
2972 | return ret; | |
2973 | } | |
2974 | ||
2975 | static struct hash *route_map_get_dep_hash(route_map_event_t event) | |
2976 | { | |
2977 | struct hash *upd8_hash = NULL; | |
2978 | ||
2979 | switch (event) { | |
2980 | case RMAP_EVENT_PLIST_ADDED: | |
2981 | case RMAP_EVENT_PLIST_DELETED: | |
2982 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_PLIST]; | |
2983 | break; | |
2984 | case RMAP_EVENT_CLIST_ADDED: | |
2985 | case RMAP_EVENT_CLIST_DELETED: | |
2986 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_CLIST]; | |
2987 | break; | |
2988 | case RMAP_EVENT_ECLIST_ADDED: | |
2989 | case RMAP_EVENT_ECLIST_DELETED: | |
2990 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ECLIST]; | |
2991 | break; | |
2992 | case RMAP_EVENT_ASLIST_ADDED: | |
2993 | case RMAP_EVENT_ASLIST_DELETED: | |
2994 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ASPATH]; | |
2995 | break; | |
2996 | case RMAP_EVENT_LLIST_ADDED: | |
2997 | case RMAP_EVENT_LLIST_DELETED: | |
2998 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_LCLIST]; | |
2999 | break; | |
3000 | case RMAP_EVENT_CALL_ADDED: | |
3001 | case RMAP_EVENT_CALL_DELETED: | |
5ed2e47b | 3002 | case RMAP_EVENT_MATCH_ADDED: |
3003 | case RMAP_EVENT_MATCH_DELETED: | |
d62a17ae | 3004 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_RMAP]; |
3005 | break; | |
3006 | case RMAP_EVENT_FILTER_ADDED: | |
3007 | case RMAP_EVENT_FILTER_DELETED: | |
3008 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_FILTER]; | |
3009 | break; | |
ba1707ca DS |
3010 | /* |
3011 | * Should we actually be ignoring these? | |
3012 | * I am not sure but at this point in time, let | |
3013 | * us get them into this switch and we can peel | |
3014 | * them into the appropriate place in the future | |
3015 | */ | |
3016 | case RMAP_EVENT_SET_ADDED: | |
3017 | case RMAP_EVENT_SET_DELETED: | |
3018 | case RMAP_EVENT_SET_REPLACED: | |
3019 | case RMAP_EVENT_MATCH_REPLACED: | |
3020 | case RMAP_EVENT_INDEX_ADDED: | |
3021 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 3022 | upd8_hash = NULL; |
3023 | break; | |
3024 | } | |
3025 | return (upd8_hash); | |
518f0eb1 DS |
3026 | } |
3027 | ||
e3b78da8 | 3028 | static void route_map_process_dependency(struct hash_bucket *bucket, void *data) |
518f0eb1 | 3029 | { |
e2c8d6ce NT |
3030 | struct route_map_dep_data *dep_data = NULL; |
3031 | char *rmap_name = NULL; | |
3032 | ||
3033 | dep_data = bucket->data; | |
3034 | rmap_name = dep_data->rname; | |
d62a17ae | 3035 | |
5913a17a | 3036 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 | 3037 | zlog_debug("Notifying %s of dependency", rmap_name); |
1fae5ff2 | 3038 | if (route_map_master.event_hook) |
097b5973 | 3039 | (*route_map_master.event_hook)(rmap_name); |
518f0eb1 DS |
3040 | } |
3041 | ||
d62a17ae | 3042 | void route_map_upd8_dependency(route_map_event_t type, const char *arg, |
3043 | const char *rmap_name) | |
518f0eb1 | 3044 | { |
d62a17ae | 3045 | struct hash *upd8_hash = NULL; |
518f0eb1 | 3046 | |
fdf823db | 3047 | if ((upd8_hash = route_map_get_dep_hash(type))) { |
d62a17ae | 3048 | route_map_dep_update(upd8_hash, arg, rmap_name, type); |
fdf823db NT |
3049 | |
3050 | if (type == RMAP_EVENT_CALL_ADDED) { | |
3051 | /* Execute hook. */ | |
3052 | if (route_map_master.add_hook) | |
3053 | (*route_map_master.add_hook)(rmap_name); | |
3054 | } else if (type == RMAP_EVENT_CALL_DELETED) { | |
3055 | /* Execute hook. */ | |
3056 | if (route_map_master.delete_hook) | |
3057 | (*route_map_master.delete_hook)(rmap_name); | |
3058 | } | |
3059 | } | |
518f0eb1 DS |
3060 | } |
3061 | ||
d62a17ae | 3062 | void route_map_notify_dependencies(const char *affected_name, |
3063 | route_map_event_t event) | |
518f0eb1 | 3064 | { |
d62a17ae | 3065 | struct route_map_dep *dep; |
3066 | struct hash *upd8_hash; | |
3067 | char *name; | |
3068 | ||
3069 | if (!affected_name) | |
3070 | return; | |
3071 | ||
3072 | name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, affected_name); | |
3073 | ||
3074 | if ((upd8_hash = route_map_get_dep_hash(event)) == NULL) { | |
3075 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
3076 | return; | |
518f0eb1 | 3077 | } |
d62a17ae | 3078 | |
3079 | dep = (struct route_map_dep *)hash_get(upd8_hash, name, NULL); | |
3080 | if (dep) { | |
3081 | if (!dep->this_hash) | |
3082 | dep->this_hash = upd8_hash; | |
3083 | ||
5913a17a | 3084 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 | 3085 | zlog_debug("Filter %s updated", dep->dep_name); |
d62a17ae | 3086 | hash_iterate(dep->dep_rmap_hash, route_map_process_dependency, |
3087 | (void *)event); | |
3088 | } | |
3089 | ||
3090 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
518f0eb1 DS |
3091 | } |
3092 | ||
718e3744 | 3093 | /* VTY related functions. */ |
1fa30509 DS |
3094 | static void clear_route_map_helper(struct route_map *map) |
3095 | { | |
3096 | struct route_map_index *index; | |
3097 | ||
3098 | map->applied_clear = map->applied; | |
3099 | for (index = map->head; index; index = index->next) | |
3100 | index->applied_clear = index->applied; | |
3101 | } | |
3102 | ||
3103 | DEFUN (rmap_clear_counters, | |
3104 | rmap_clear_counters_cmd, | |
3105 | "clear route-map counters [WORD]", | |
3106 | CLEAR_STR | |
3107 | "route-map information\n" | |
3108 | "counters associated with the specified route-map\n" | |
3109 | "route-map name\n") | |
3110 | { | |
3111 | int idx_word = 2; | |
3112 | struct route_map *map; | |
3113 | ||
3114 | const char *name = (argc == 3 ) ? argv[idx_word]->arg : NULL; | |
3115 | ||
3116 | if (name) { | |
3117 | map = route_map_lookup_by_name(name); | |
3118 | ||
3119 | if (map) | |
3120 | clear_route_map_helper(map); | |
3121 | else { | |
3122 | vty_out(vty, "%s: 'route-map %s' not found\n", | |
3123 | frr_protonameinst, name); | |
3124 | return CMD_SUCCESS; | |
3125 | } | |
3126 | } else { | |
3127 | for (map = route_map_master.head; map; map = map->next) | |
3128 | clear_route_map_helper(map); | |
3129 | } | |
3130 | ||
3131 | return CMD_SUCCESS; | |
3132 | ||
3133 | } | |
5510e83b | 3134 | |
6d2729e3 | 3135 | DEFUN (rmap_show_name, |
5510e83b | 3136 | rmap_show_name_cmd, |
856ed18a | 3137 | "show route-map [WORD] [json]", |
5510e83b | 3138 | SHOW_STR |
3139 | "route-map information\n" | |
856ed18a RW |
3140 | "route-map name\n" |
3141 | JSON_STR) | |
5510e83b | 3142 | { |
856ed18a RW |
3143 | bool uj = use_json(argc, argv); |
3144 | int idx = 0; | |
3145 | const char *name = NULL; | |
3146 | ||
3147 | if (argv_find(argv, argc, "WORD", &idx)) | |
3148 | name = argv[idx]->arg; | |
3149 | ||
3150 | return vty_show_route_map(vty, name, uj); | |
5510e83b | 3151 | } |
3152 | ||
4a2a09d0 | 3153 | DEFUN (rmap_show_unused, |
3154 | rmap_show_unused_cmd, | |
3155 | "show route-map-unused", | |
3156 | SHOW_STR | |
3157 | "unused route-map information\n") | |
3158 | { | |
3159 | return vty_show_unused_route_map(vty); | |
3160 | } | |
3161 | ||
e3ab8170 AD |
3162 | DEFUN (debug_rmap, |
3163 | debug_rmap_cmd, | |
3164 | "debug route-map", | |
3165 | DEBUG_STR | |
3166 | "Debug option set for route-maps\n") | |
3167 | { | |
5913a17a | 3168 | SET_FLAG(rmap_debug, DEBUG_ROUTEMAP); |
e3ab8170 AD |
3169 | return CMD_SUCCESS; |
3170 | } | |
3171 | ||
3172 | DEFUN (no_debug_rmap, | |
3173 | no_debug_rmap_cmd, | |
3174 | "no debug route-map", | |
3175 | NO_STR | |
3176 | DEBUG_STR | |
3177 | "Debug option set for route-maps\n") | |
3178 | { | |
5913a17a | 3179 | UNSET_FLAG(rmap_debug, DEBUG_ROUTEMAP); |
e3ab8170 AD |
3180 | return CMD_SUCCESS; |
3181 | } | |
3182 | ||
3183 | /* Debug node. */ | |
612c2c15 | 3184 | static int rmap_config_write_debug(struct vty *vty); |
62b346ee | 3185 | static struct cmd_node rmap_debug_node = { |
f4b8291f | 3186 | .name = "route-map debug", |
62b346ee DL |
3187 | .node = RMAP_DEBUG_NODE, |
3188 | .prompt = "", | |
612c2c15 | 3189 | .config_write = rmap_config_write_debug, |
62b346ee | 3190 | }; |
e3ab8170 | 3191 | |
cf00164b DS |
3192 | void route_map_show_debug(struct vty *vty) |
3193 | { | |
5913a17a | 3194 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
cf00164b DS |
3195 | vty_out(vty, "debug route-map\n"); |
3196 | } | |
3197 | ||
718e3744 | 3198 | /* Configuration write function. */ |
e3ab8170 AD |
3199 | static int rmap_config_write_debug(struct vty *vty) |
3200 | { | |
3201 | int write = 0; | |
3202 | ||
5913a17a | 3203 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) { |
e3ab8170 AD |
3204 | vty_out(vty, "debug route-map\n"); |
3205 | write++; | |
3206 | } | |
3207 | ||
3208 | return write; | |
3209 | } | |
3210 | ||
dc9ffce8 CF |
3211 | /* Common route map rules */ |
3212 | ||
d62a17ae | 3213 | void *route_map_rule_tag_compile(const char *arg) |
dc9ffce8 | 3214 | { |
d62a17ae | 3215 | unsigned long int tmp; |
3216 | char *endptr; | |
3217 | route_tag_t *tag; | |
dc9ffce8 | 3218 | |
d62a17ae | 3219 | errno = 0; |
3220 | tmp = strtoul(arg, &endptr, 0); | |
3221 | if (arg[0] == '\0' || *endptr != '\0' || errno || tmp > ROUTE_TAG_MAX) | |
3222 | return NULL; | |
dc9ffce8 | 3223 | |
d62a17ae | 3224 | tag = XMALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(*tag)); |
3225 | *tag = tmp; | |
dc9ffce8 | 3226 | |
d62a17ae | 3227 | return tag; |
dc9ffce8 CF |
3228 | } |
3229 | ||
d62a17ae | 3230 | void route_map_rule_tag_free(void *rule) |
dc9ffce8 | 3231 | { |
d62a17ae | 3232 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
dc9ffce8 CF |
3233 | } |
3234 | ||
d62a17ae | 3235 | void route_map_finish(void) |
9df78e7c | 3236 | { |
d62a17ae | 3237 | int i; |
88711d8a DL |
3238 | struct route_map_rule_cmd_proxy *proxy; |
3239 | ||
3240 | /* these 2 hash tables have INIT_HASH initializers, so the "default" | |
3241 | * state is "initialized & empty" => fini() followed by init() to | |
3242 | * return to that same state | |
3243 | */ | |
3244 | while ((proxy = rmap_cmd_name_pop(rmap_match_cmds))) | |
3245 | (void)proxy; | |
3246 | rmap_cmd_name_fini(rmap_match_cmds); | |
3247 | rmap_cmd_name_init(rmap_match_cmds); | |
9df78e7c | 3248 | |
88711d8a DL |
3249 | while ((proxy = rmap_cmd_name_pop(rmap_set_cmds))) |
3250 | (void)proxy; | |
3251 | rmap_cmd_name_fini(rmap_set_cmds); | |
3252 | rmap_cmd_name_init(rmap_set_cmds); | |
9df78e7c | 3253 | |
8619629a DS |
3254 | /* |
3255 | * All protocols are setting these to NULL | |
3256 | * by default on shutdown( route_map_finish ) | |
3257 | * Why are we making them do this work? | |
3258 | */ | |
3259 | route_map_master.add_hook = NULL; | |
3260 | route_map_master.delete_hook = NULL; | |
3261 | route_map_master.event_hook = NULL; | |
3262 | ||
d62a17ae | 3263 | /* cleanup route_map */ |
3264 | while (route_map_master.head) { | |
3265 | struct route_map *map = route_map_master.head; | |
e4694d0d | 3266 | map->to_be_processed = false; |
d62a17ae | 3267 | route_map_delete(map); |
3268 | } | |
9df78e7c | 3269 | |
d62a17ae | 3270 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
3271 | hash_free(route_map_dep_hash[i]); | |
3272 | route_map_dep_hash[i] = NULL; | |
3273 | } | |
9df78e7c | 3274 | |
d62a17ae | 3275 | hash_free(route_map_master_hash); |
3276 | route_map_master_hash = NULL; | |
9df78e7c DS |
3277 | } |
3278 | ||
4a2a09d0 | 3279 | /* Increment the use_count counter while attaching the route map */ |
3280 | void route_map_counter_increment(struct route_map *map) | |
3281 | { | |
3282 | if (map) | |
3283 | map->use_count++; | |
3284 | } | |
3285 | ||
3286 | /* Decrement the use_count counter while detaching the route map. */ | |
3287 | void route_map_counter_decrement(struct route_map *map) | |
3288 | { | |
3289 | if (map) { | |
3290 | if (map->use_count <= 0) | |
3291 | return; | |
3292 | map->use_count--; | |
3293 | } | |
3294 | } | |
3295 | ||
2d26f094 | 3296 | DEFUN_HIDDEN(show_route_map_pfx_tbl, show_route_map_pfx_tbl_cmd, |
70dd370f | 3297 | "show route-map RMAP_NAME prefix-table", |
2d26f094 NT |
3298 | SHOW_STR |
3299 | "route-map\n" | |
3300 | "route-map name\n" | |
3301 | "internal prefix-table\n") | |
3302 | { | |
3303 | const char *rmap_name = argv[2]->arg; | |
3304 | struct route_map *rmap = NULL; | |
3305 | struct route_table *rm_pfx_tbl4 = NULL; | |
3306 | struct route_table *rm_pfx_tbl6 = NULL; | |
3307 | struct route_node *rn = NULL, *prn = NULL; | |
3308 | struct list *rmap_index_list = NULL; | |
3309 | struct listnode *ln = NULL, *nln = NULL; | |
3310 | struct route_map_index *index = NULL; | |
2d26f094 NT |
3311 | uint8_t len = 54; |
3312 | ||
3313 | vty_out(vty, "%s:\n", frr_protonameinst); | |
3314 | rmap = route_map_lookup_by_name(rmap_name); | |
3315 | if (rmap) { | |
3316 | rm_pfx_tbl4 = rmap->ipv4_prefix_table; | |
3317 | if (rm_pfx_tbl4) { | |
3318 | vty_out(vty, "\n%s%43s%s\n", "IPv4 Prefix", "", | |
3319 | "Route-map Index List"); | |
3320 | vty_out(vty, "%s%39s%s\n", "_______________", "", | |
3321 | "____________________"); | |
3322 | for (rn = route_top(rm_pfx_tbl4); rn; | |
3323 | rn = route_next(rn)) { | |
b219dda1 | 3324 | vty_out(vty, " %pRN (%d)\n", rn, |
c10e14e9 | 3325 | route_node_get_lock_count(rn)); |
2d26f094 NT |
3326 | |
3327 | vty_out(vty, "(P) "); | |
3328 | prn = rn->parent; | |
3329 | if (prn) { | |
b219dda1 | 3330 | vty_out(vty, "%pRN\n", prn); |
2d26f094 NT |
3331 | } |
3332 | ||
3333 | vty_out(vty, "\n"); | |
3334 | rmap_index_list = (struct list *)rn->info; | |
3335 | if (!rmap_index_list | |
3336 | || !listcount(rmap_index_list)) | |
3337 | vty_out(vty, "%*s%s\n", len, "", "-"); | |
3338 | else | |
3339 | for (ALL_LIST_ELEMENTS(rmap_index_list, | |
3340 | ln, nln, | |
3341 | index)) { | |
3342 | vty_out(vty, "%*s%s seq %d\n", | |
3343 | len, "", | |
3344 | index->map->name, | |
3345 | index->pref); | |
3346 | } | |
3347 | vty_out(vty, "\n"); | |
3348 | } | |
3349 | } | |
3350 | ||
3351 | rm_pfx_tbl6 = rmap->ipv6_prefix_table; | |
3352 | if (rm_pfx_tbl6) { | |
3353 | vty_out(vty, "\n%s%43s%s\n", "IPv6 Prefix", "", | |
3354 | "Route-map Index List"); | |
3355 | vty_out(vty, "%s%39s%s\n", "_______________", "", | |
3356 | "____________________"); | |
3357 | for (rn = route_top(rm_pfx_tbl6); rn; | |
3358 | rn = route_next(rn)) { | |
b219dda1 | 3359 | vty_out(vty, " %pRN (%d)\n", rn, |
c10e14e9 | 3360 | route_node_get_lock_count(rn)); |
2d26f094 NT |
3361 | |
3362 | vty_out(vty, "(P) "); | |
3363 | prn = rn->parent; | |
3364 | if (prn) { | |
b219dda1 | 3365 | vty_out(vty, "%pRN\n", prn); |
2d26f094 NT |
3366 | } |
3367 | ||
3368 | vty_out(vty, "\n"); | |
3369 | rmap_index_list = (struct list *)rn->info; | |
3370 | if (!rmap_index_list | |
3371 | || !listcount(rmap_index_list)) | |
3372 | vty_out(vty, "%*s%s\n", len, "", "-"); | |
3373 | else | |
3374 | for (ALL_LIST_ELEMENTS(rmap_index_list, | |
3375 | ln, nln, | |
3376 | index)) { | |
3377 | vty_out(vty, "%*s%s seq %d\n", | |
3378 | len, "", | |
3379 | index->map->name, | |
3380 | index->pref); | |
3381 | } | |
3382 | vty_out(vty, "\n"); | |
3383 | } | |
3384 | } | |
3385 | } | |
3386 | ||
3387 | vty_out(vty, "\n"); | |
3388 | return CMD_SUCCESS; | |
3389 | } | |
3390 | ||
718e3744 | 3391 | /* Initialization of route map vector. */ |
d62a17ae | 3392 | void route_map_init(void) |
718e3744 | 3393 | { |
d62a17ae | 3394 | int i; |
3395 | ||
d62a17ae | 3396 | route_map_master_hash = |
996c9314 | 3397 | hash_create_size(8, route_map_hash_key_make, route_map_hash_cmp, |
bd74dc61 | 3398 | "Route Map Master Hash"); |
d62a17ae | 3399 | |
3400 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) | |
996c9314 LB |
3401 | route_map_dep_hash[i] = hash_create_size( |
3402 | 8, route_map_dep_hash_make_key, route_map_dep_hash_cmp, | |
3403 | "Route Map Dep Hash"); | |
b2575bc0 | 3404 | |
5913a17a | 3405 | UNSET_FLAG(rmap_debug, DEBUG_ROUTEMAP); |
e3ab8170 | 3406 | |
2b3e4807 | 3407 | route_map_cli_init(); |
518f0eb1 | 3408 | |
2b3e4807 | 3409 | /* Install route map top node. */ |
612c2c15 | 3410 | install_node(&rmap_debug_node); |
e3ab8170 | 3411 | |
d62a17ae | 3412 | /* Install route map commands. */ |
e3ab8170 AD |
3413 | install_element(CONFIG_NODE, &debug_rmap_cmd); |
3414 | install_element(CONFIG_NODE, &no_debug_rmap_cmd); | |
3415 | ||
d62a17ae | 3416 | /* Install show command */ |
1fa30509 DS |
3417 | install_element(ENABLE_NODE, &rmap_clear_counters_cmd); |
3418 | ||
d62a17ae | 3419 | install_element(ENABLE_NODE, &rmap_show_name_cmd); |
4a2a09d0 | 3420 | install_element(ENABLE_NODE, &rmap_show_unused_cmd); |
82f97584 | 3421 | |
e3ab8170 AD |
3422 | install_element(ENABLE_NODE, &debug_rmap_cmd); |
3423 | install_element(ENABLE_NODE, &no_debug_rmap_cmd); | |
49a08bb0 | 3424 | |
2d26f094 | 3425 | install_element(ENABLE_NODE, &show_route_map_pfx_tbl_cmd); |
718e3744 | 3426 | } |