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