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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* Route map function. |
896014f4 | 3 | * Copyright (C) 1998, 1999 Kunihiro Ishiguro |
896014f4 | 4 | */ |
718e3744 | 5 | |
6 | #include <zebra.h> | |
7 | ||
8 | #include "linklist.h" | |
9 | #include "memory.h" | |
856ed18a | 10 | #include "command.h" |
718e3744 | 11 | #include "vector.h" |
12 | #include "prefix.h" | |
82f97584 | 13 | #include "vty.h" |
718e3744 | 14 | #include "routemap.h" |
15 | #include "command.h" | |
fee0f4c6 | 16 | #include "log.h" |
518f0eb1 | 17 | #include "hash.h" |
b85120bc | 18 | #include "libfrr.h" |
040c7c3a | 19 | #include "lib_errors.h" |
49a08bb0 | 20 | #include "table.h" |
856ed18a | 21 | #include "json.h" |
88711d8a | 22 | #include "jhash.h" |
6b0655a2 | 23 | |
1c950f37 DS |
24 | #include "lib/routemap_clippy.c" |
25 | ||
bf8d3d6a DL |
26 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP, "Route map"); |
27 | DEFINE_MTYPE(LIB, ROUTE_MAP_NAME, "Route map name"); | |
28 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_INDEX, "Route map index"); | |
29 | DEFINE_MTYPE(LIB, ROUTE_MAP_RULE, "Route map rule"); | |
30 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_RULE_STR, "Route map rule str"); | |
31 | DEFINE_MTYPE(LIB, ROUTE_MAP_COMPILED, "Route map compiled"); | |
32 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP, "Route map dependency"); | |
33 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP_DATA, "Route map dependency data"); | |
4a1ab8e4 | 34 | |
96244aca DL |
35 | DEFINE_QOBJ_TYPE(route_map_index); |
36 | DEFINE_QOBJ_TYPE(route_map); | |
e80e7cce | 37 | |
88711d8a DL |
38 | static int rmap_cmd_name_cmp(const struct route_map_rule_cmd_proxy *a, |
39 | const struct route_map_rule_cmd_proxy *b) | |
40 | { | |
41 | return strcmp(a->cmd->str, b->cmd->str); | |
42 | } | |
43 | ||
44 | static uint32_t rmap_cmd_name_hash(const struct route_map_rule_cmd_proxy *item) | |
45 | { | |
46 | return jhash(item->cmd->str, strlen(item->cmd->str), 0xbfd69320); | |
47 | } | |
48 | ||
49 | DECLARE_HASH(rmap_cmd_name, struct route_map_rule_cmd_proxy, itm, | |
50 | rmap_cmd_name_cmp, rmap_cmd_name_hash); | |
51 | ||
52 | static struct rmap_cmd_name_head rmap_match_cmds[1] = { | |
53 | INIT_HASH(rmap_match_cmds[0]), | |
54 | }; | |
55 | static struct rmap_cmd_name_head rmap_set_cmds[1] = { | |
56 | INIT_HASH(rmap_set_cmds[0]), | |
57 | }; | |
58 | ||
49a08bb0 NT |
59 | #define IPv4_PREFIX_LIST "ip address prefix-list" |
60 | #define IPv6_PREFIX_LIST "ipv6 address prefix-list" | |
49a08bb0 | 61 | |
2d26f094 NT |
62 | #define IS_RULE_IPv4_PREFIX_LIST(S) \ |
63 | (strncmp(S, IPv4_PREFIX_LIST, strlen(IPv4_PREFIX_LIST)) == 0) | |
64 | #define IS_RULE_IPv6_PREFIX_LIST(S) \ | |
65 | (strncmp(S, IPv6_PREFIX_LIST, strlen(IPv6_PREFIX_LIST)) == 0) | |
66 | ||
49a08bb0 NT |
67 | struct route_map_pentry_dep { |
68 | struct prefix_list_entry *pentry; | |
69 | const char *plist_name; | |
70 | route_map_event_t event; | |
71 | }; | |
72 | ||
2d26f094 NT |
73 | static void route_map_pfx_tbl_update(route_map_event_t event, |
74 | struct route_map_index *index, afi_t afi, | |
75 | const char *plist_name); | |
76 | static void route_map_pfx_table_add_default(afi_t afi, | |
77 | struct route_map_index *index); | |
78 | static void route_map_pfx_table_del_default(afi_t afi, | |
79 | struct route_map_index *index); | |
80 | static void route_map_add_plist_entries(afi_t afi, | |
81 | struct route_map_index *index, | |
82 | const char *plist_name, | |
83 | struct prefix_list_entry *entry); | |
84 | static void route_map_del_plist_entries(afi_t afi, | |
85 | struct route_map_index *index, | |
86 | const char *plist_name, | |
87 | struct prefix_list_entry *entry); | |
2d26f094 NT |
88 | |
89 | static struct hash *route_map_get_dep_hash(route_map_event_t event); | |
5f503e5f | 90 | static void route_map_free_map(struct route_map *map); |
49a08bb0 | 91 | |
a7282663 | 92 | struct route_map_match_set_hooks rmap_match_set_hook; |
82f97584 DW |
93 | |
94 | /* match interface */ | |
d62a17ae | 95 | void route_map_match_interface_hook(int (*func)( |
d5d737a2 SP |
96 | struct route_map_index *index, const char *command, |
97 | const char *arg, route_map_event_t type, | |
98 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 99 | { |
d62a17ae | 100 | rmap_match_set_hook.match_interface = func; |
82f97584 DW |
101 | } |
102 | ||
103 | /* no match interface */ | |
d62a17ae | 104 | void route_map_no_match_interface_hook(int (*func)( |
d5d737a2 SP |
105 | struct route_map_index *index, const char *command, |
106 | const char *arg, route_map_event_t type, | |
107 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 108 | { |
d62a17ae | 109 | rmap_match_set_hook.no_match_interface = func; |
82f97584 DW |
110 | } |
111 | ||
112 | /* match ip address */ | |
d62a17ae | 113 | void route_map_match_ip_address_hook(int (*func)( |
d5d737a2 SP |
114 | struct route_map_index *index, const char *command, |
115 | const char *arg, route_map_event_t type, | |
116 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 117 | { |
d62a17ae | 118 | rmap_match_set_hook.match_ip_address = func; |
82f97584 DW |
119 | } |
120 | ||
121 | /* no match ip address */ | |
d62a17ae | 122 | void route_map_no_match_ip_address_hook(int (*func)( |
d5d737a2 SP |
123 | struct route_map_index *index, const char *command, |
124 | const char *arg, route_map_event_t type, | |
125 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 126 | { |
d62a17ae | 127 | rmap_match_set_hook.no_match_ip_address = func; |
82f97584 DW |
128 | } |
129 | ||
130 | /* match ip address prefix list */ | |
d62a17ae | 131 | void route_map_match_ip_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
132 | struct route_map_index *index, const char *command, |
133 | const char *arg, route_map_event_t type, | |
134 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 135 | { |
d62a17ae | 136 | rmap_match_set_hook.match_ip_address_prefix_list = func; |
82f97584 DW |
137 | } |
138 | ||
139 | /* no match ip address prefix list */ | |
d62a17ae | 140 | void route_map_no_match_ip_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
141 | struct route_map_index *index, const char *command, |
142 | const char *arg, route_map_event_t type, | |
143 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 144 | { |
d62a17ae | 145 | rmap_match_set_hook.no_match_ip_address_prefix_list = func; |
82f97584 DW |
146 | } |
147 | ||
148 | /* match ip next hop */ | |
d62a17ae | 149 | void route_map_match_ip_next_hop_hook(int (*func)( |
d5d737a2 SP |
150 | struct route_map_index *index, const char *command, |
151 | const char *arg, route_map_event_t type, | |
152 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 153 | { |
d62a17ae | 154 | rmap_match_set_hook.match_ip_next_hop = func; |
82f97584 DW |
155 | } |
156 | ||
157 | /* no match ip next hop */ | |
d62a17ae | 158 | void route_map_no_match_ip_next_hop_hook(int (*func)( |
d5d737a2 SP |
159 | struct route_map_index *index, const char *command, |
160 | const char *arg, route_map_event_t type, | |
161 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 162 | { |
d62a17ae | 163 | rmap_match_set_hook.no_match_ip_next_hop = func; |
82f97584 DW |
164 | } |
165 | ||
bc63ba98 DA |
166 | /* match ipv6 next-hop */ |
167 | void route_map_match_ipv6_next_hop_hook(int (*func)( | |
168 | struct route_map_index *index, const char *command, const char *arg, | |
169 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
170 | { | |
171 | rmap_match_set_hook.match_ipv6_next_hop = func; | |
172 | } | |
173 | ||
174 | /* no match ipv6 next-hop */ | |
175 | void route_map_no_match_ipv6_next_hop_hook(int (*func)( | |
176 | struct route_map_index *index, const char *command, const char *arg, | |
177 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
178 | { | |
179 | rmap_match_set_hook.no_match_ipv6_next_hop = func; | |
180 | } | |
181 | ||
82f97584 | 182 | /* match ip next hop prefix list */ |
d62a17ae | 183 | void route_map_match_ip_next_hop_prefix_list_hook(int (*func)( |
d5d737a2 SP |
184 | struct route_map_index *index, const char *command, |
185 | const char *arg, route_map_event_t type, | |
186 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 187 | { |
d62a17ae | 188 | rmap_match_set_hook.match_ip_next_hop_prefix_list = func; |
82f97584 DW |
189 | } |
190 | ||
191 | /* no match ip next hop prefix list */ | |
d62a17ae | 192 | void route_map_no_match_ip_next_hop_prefix_list_hook(int (*func)( |
d5d737a2 SP |
193 | struct route_map_index *index, const char *command, |
194 | const char *arg, route_map_event_t type, | |
195 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 196 | { |
d62a17ae | 197 | rmap_match_set_hook.no_match_ip_next_hop_prefix_list = func; |
82f97584 DW |
198 | } |
199 | ||
f554fda7 | 200 | /* match ip next-hop type */ |
61ad901e | 201 | void route_map_match_ip_next_hop_type_hook(int (*func)( |
d5d737a2 SP |
202 | struct route_map_index *index, const char *command, |
203 | const char *arg, route_map_event_t type, | |
204 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
205 | { |
206 | rmap_match_set_hook.match_ip_next_hop_type = func; | |
207 | } | |
208 | ||
f554fda7 | 209 | /* no match ip next-hop type */ |
61ad901e | 210 | void route_map_no_match_ip_next_hop_type_hook(int (*func)( |
d5d737a2 SP |
211 | struct route_map_index *index, const char *command, |
212 | const char *arg, route_map_event_t type, | |
213 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
214 | { |
215 | rmap_match_set_hook.no_match_ip_next_hop_type = func; | |
216 | } | |
217 | ||
82f97584 | 218 | /* match ipv6 address */ |
d62a17ae | 219 | void route_map_match_ipv6_address_hook(int (*func)( |
d5d737a2 SP |
220 | struct route_map_index *index, const char *command, |
221 | const char *arg, route_map_event_t type, | |
222 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 223 | { |
d62a17ae | 224 | rmap_match_set_hook.match_ipv6_address = func; |
82f97584 DW |
225 | } |
226 | ||
227 | /* no match ipv6 address */ | |
d62a17ae | 228 | void route_map_no_match_ipv6_address_hook(int (*func)( |
d5d737a2 SP |
229 | struct route_map_index *index, const char *command, |
230 | const char *arg, route_map_event_t type, | |
231 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 232 | { |
d62a17ae | 233 | rmap_match_set_hook.no_match_ipv6_address = func; |
82f97584 DW |
234 | } |
235 | ||
236 | ||
237 | /* match ipv6 address prefix list */ | |
d62a17ae | 238 | void route_map_match_ipv6_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
239 | struct route_map_index *index, const char *command, |
240 | const char *arg, route_map_event_t type, | |
241 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 242 | { |
d62a17ae | 243 | rmap_match_set_hook.match_ipv6_address_prefix_list = func; |
82f97584 DW |
244 | } |
245 | ||
246 | /* no match ipv6 address prefix list */ | |
d62a17ae | 247 | void route_map_no_match_ipv6_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
248 | struct route_map_index *index, const char *command, |
249 | const char *arg, route_map_event_t type, | |
250 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 251 | { |
d62a17ae | 252 | rmap_match_set_hook.no_match_ipv6_address_prefix_list = func; |
82f97584 DW |
253 | } |
254 | ||
61ad901e DA |
255 | /* match ipv6 next-hop type */ |
256 | void route_map_match_ipv6_next_hop_type_hook(int (*func)( | |
d5d737a2 SP |
257 | struct route_map_index *index, const char *command, |
258 | const char *arg, route_map_event_t type, | |
259 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
260 | { |
261 | rmap_match_set_hook.match_ipv6_next_hop_type = func; | |
262 | } | |
263 | ||
264 | /* no match ipv6 next-hop type */ | |
265 | void route_map_no_match_ipv6_next_hop_type_hook(int (*func)( | |
d5d737a2 SP |
266 | struct route_map_index *index, const char *command, |
267 | const char *arg, route_map_event_t type, | |
268 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
269 | { |
270 | rmap_match_set_hook.no_match_ipv6_next_hop_type = func; | |
271 | } | |
272 | ||
82f191a2 DA |
273 | /* match ipv6 next-hop prefix-list */ |
274 | void route_map_match_ipv6_next_hop_prefix_list_hook(int (*func)( | |
275 | struct route_map_index *index, const char *command, const char *arg, | |
276 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
277 | { | |
278 | rmap_match_set_hook.match_ipv6_next_hop_prefix_list = func; | |
279 | } | |
280 | ||
281 | /* no match ipv6 next-hop prefix-list */ | |
282 | void route_map_no_match_ipv6_next_hop_prefix_list_hook(int (*func)( | |
283 | struct route_map_index *index, const char *command, const char *arg, | |
284 | route_map_event_t type, char *errmsg, size_t errmsg_len)) | |
285 | { | |
286 | rmap_match_set_hook.no_match_ipv6_next_hop_prefix_list = func; | |
287 | } | |
288 | ||
82f97584 | 289 | /* match metric */ |
d62a17ae | 290 | void route_map_match_metric_hook(int (*func)( |
d5d737a2 SP |
291 | struct route_map_index *index, const char *command, |
292 | const char *arg, route_map_event_t type, | |
293 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 294 | { |
d62a17ae | 295 | rmap_match_set_hook.match_metric = func; |
82f97584 DW |
296 | } |
297 | ||
298 | /* no match metric */ | |
d62a17ae | 299 | void route_map_no_match_metric_hook(int (*func)( |
d5d737a2 SP |
300 | struct route_map_index *index, const char *command, |
301 | const char *arg, route_map_event_t type, | |
302 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 303 | { |
d62a17ae | 304 | rmap_match_set_hook.no_match_metric = func; |
82f97584 DW |
305 | } |
306 | ||
307 | /* match tag */ | |
d5d737a2 | 308 | void route_map_match_tag_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 309 | const char *command, const char *arg, |
d5d737a2 SP |
310 | route_map_event_t type, |
311 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 312 | { |
d62a17ae | 313 | rmap_match_set_hook.match_tag = func; |
82f97584 DW |
314 | } |
315 | ||
316 | /* no match tag */ | |
d62a17ae | 317 | void route_map_no_match_tag_hook(int (*func)( |
d5d737a2 SP |
318 | struct route_map_index *index, const char *command, |
319 | const char *arg, route_map_event_t type, | |
320 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 321 | { |
d62a17ae | 322 | rmap_match_set_hook.no_match_tag = func; |
82f97584 DW |
323 | } |
324 | ||
31f937fb | 325 | /* set sr-te color */ |
d5d737a2 | 326 | void route_map_set_srte_color_hook(int (*func)(struct route_map_index *index, |
31f937fb | 327 | const char *command, |
d5d737a2 SP |
328 | const char *arg, |
329 | char *errmsg, size_t errmsg_len)) | |
31f937fb SM |
330 | { |
331 | rmap_match_set_hook.set_srte_color = func; | |
332 | } | |
333 | ||
334 | /* no set sr-te color */ | |
d5d737a2 | 335 | void route_map_no_set_srte_color_hook(int (*func)(struct route_map_index *index, |
31f937fb | 336 | const char *command, |
d5d737a2 SP |
337 | const char *arg, |
338 | char *errmsg, size_t errmsg_len)) | |
31f937fb SM |
339 | { |
340 | rmap_match_set_hook.no_set_srte_color = func; | |
341 | } | |
342 | ||
82f97584 | 343 | /* set ip nexthop */ |
d5d737a2 | 344 | void route_map_set_ip_nexthop_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 345 | const char *command, |
d5d737a2 SP |
346 | const char *arg, |
347 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 348 | { |
d62a17ae | 349 | rmap_match_set_hook.set_ip_nexthop = func; |
82f97584 DW |
350 | } |
351 | ||
352 | /* no set ip nexthop */ | |
d5d737a2 | 353 | void route_map_no_set_ip_nexthop_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 354 | const char *command, |
d5d737a2 SP |
355 | const char *arg, |
356 | char *errmsg, | |
357 | size_t errmsg_len)) | |
82f97584 | 358 | { |
d62a17ae | 359 | rmap_match_set_hook.no_set_ip_nexthop = func; |
82f97584 DW |
360 | } |
361 | ||
362 | /* set ipv6 nexthop local */ | |
d62a17ae | 363 | void route_map_set_ipv6_nexthop_local_hook( |
d5d737a2 SP |
364 | int (*func)(struct route_map_index *index, |
365 | const char *command, const char *arg, | |
366 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 367 | { |
d62a17ae | 368 | rmap_match_set_hook.set_ipv6_nexthop_local = func; |
82f97584 DW |
369 | } |
370 | ||
371 | /* no set ipv6 nexthop local */ | |
d62a17ae | 372 | void route_map_no_set_ipv6_nexthop_local_hook( |
d5d737a2 SP |
373 | int (*func)(struct route_map_index *index, |
374 | const char *command, const char *arg, | |
375 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 376 | { |
d62a17ae | 377 | rmap_match_set_hook.no_set_ipv6_nexthop_local = func; |
82f97584 DW |
378 | } |
379 | ||
380 | /* set metric */ | |
d5d737a2 | 381 | void route_map_set_metric_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 382 | const char *command, |
d5d737a2 SP |
383 | const char *arg, |
384 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 385 | { |
d62a17ae | 386 | rmap_match_set_hook.set_metric = func; |
82f97584 DW |
387 | } |
388 | ||
389 | /* no set metric */ | |
d5d737a2 | 390 | void route_map_no_set_metric_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 391 | const char *command, |
d5d737a2 SP |
392 | const char *arg, |
393 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 394 | { |
d62a17ae | 395 | rmap_match_set_hook.no_set_metric = func; |
82f97584 DW |
396 | } |
397 | ||
398 | /* set tag */ | |
d5d737a2 SP |
399 | void route_map_set_tag_hook(int (*func)(struct route_map_index *index, |
400 | const char *command, const char *arg, | |
401 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 402 | { |
d62a17ae | 403 | rmap_match_set_hook.set_tag = func; |
82f97584 DW |
404 | } |
405 | ||
406 | /* no set tag */ | |
d5d737a2 | 407 | void route_map_no_set_tag_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 408 | const char *command, |
d5d737a2 SP |
409 | const char *arg, |
410 | char *errmsg, size_t errmsg_len)) | |
d62a17ae | 411 | { |
412 | rmap_match_set_hook.no_set_tag = func; | |
82f97584 DW |
413 | } |
414 | ||
d5d737a2 | 415 | int generic_match_add(struct route_map_index *index, |
d62a17ae | 416 | const char *command, const char *arg, |
d5d737a2 SP |
417 | route_map_event_t type, |
418 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 419 | { |
cda7187d | 420 | enum rmap_compile_rets ret; |
d62a17ae | 421 | |
e2c8d6ce | 422 | ret = route_map_add_match(index, command, arg, type); |
9ca25fed | 423 | switch (ret) { |
9ca25fed | 424 | case RMAP_RULE_MISSING: |
d5d737a2 SP |
425 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
426 | frr_protonameinst); | |
9ca25fed | 427 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 428 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
429 | snprintf(errmsg, errmsg_len, |
430 | "%% [%s] Argument form is unsupported or malformed.", | |
431 | frr_protonameinst); | |
9ca25fed | 432 | return CMD_WARNING_CONFIG_FAILED; |
909f3d56 | 433 | case RMAP_COMPILE_SUCCESS: |
cda7187d DS |
434 | /* |
435 | * Nothing to do here move along | |
436 | */ | |
437 | break; | |
d62a17ae | 438 | } |
82f97584 | 439 | |
d62a17ae | 440 | return CMD_SUCCESS; |
441 | } | |
442 | ||
d5d737a2 | 443 | int generic_match_delete(struct route_map_index *index, |
d62a17ae | 444 | const char *command, const char *arg, |
d5d737a2 SP |
445 | route_map_event_t type, |
446 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 447 | { |
cda7187d | 448 | enum rmap_compile_rets ret; |
9ca25fed | 449 | int retval = CMD_SUCCESS; |
d62a17ae | 450 | char *dep_name = NULL; |
451 | const char *tmpstr; | |
452 | char *rmap_name = NULL; | |
453 | ||
454 | if (type != RMAP_EVENT_MATCH_DELETED) { | |
455 | /* ignore the mundane, the types without any dependency */ | |
456 | if (arg == NULL) { | |
457 | if ((tmpstr = route_map_get_match_arg(index, command)) | |
458 | != NULL) | |
459 | dep_name = | |
460 | XSTRDUP(MTYPE_ROUTE_MAP_RULE, tmpstr); | |
461 | } else { | |
462 | dep_name = XSTRDUP(MTYPE_ROUTE_MAP_RULE, arg); | |
463 | } | |
464 | rmap_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, index->map->name); | |
465 | } | |
466 | ||
909f3d56 | 467 | ret = route_map_delete_match(index, command, dep_name, type); |
9ca25fed DS |
468 | switch (ret) { |
469 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
470 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
471 | frr_protonameinst); | |
9ca25fed DS |
472 | retval = CMD_WARNING_CONFIG_FAILED; |
473 | break; | |
474 | case RMAP_COMPILE_ERROR: | |
d5d737a2 SP |
475 | snprintf(errmsg, errmsg_len, |
476 | "%% [%s] Argument form is unsupported or malformed.", | |
477 | frr_protonameinst); | |
9ca25fed DS |
478 | retval = CMD_WARNING_CONFIG_FAILED; |
479 | break; | |
480 | case RMAP_COMPILE_SUCCESS: | |
cda7187d DS |
481 | /* |
482 | * Nothing to do here | |
483 | */ | |
484 | break; | |
d62a17ae | 485 | } |
486 | ||
0a22ddfb QY |
487 | XFREE(MTYPE_ROUTE_MAP_RULE, dep_name); |
488 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
d62a17ae | 489 | |
9ca25fed | 490 | return retval; |
d62a17ae | 491 | } |
492 | ||
d5d737a2 SP |
493 | int generic_set_add(struct route_map_index *index, |
494 | const char *command, const char *arg, | |
495 | char *errmsg, size_t errmsg_len) | |
718e3744 | 496 | { |
cda7187d | 497 | enum rmap_compile_rets ret; |
d62a17ae | 498 | |
499 | ret = route_map_add_set(index, command, arg); | |
9ca25fed DS |
500 | switch (ret) { |
501 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
502 | snprintf(errmsg, errmsg_len, |
503 | "%% [%s] Can't find rule.", frr_protonameinst); | |
9ca25fed | 504 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 505 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
506 | snprintf(errmsg, errmsg_len, |
507 | "%% [%s] Argument form is unsupported or malformed.", | |
508 | frr_protonameinst); | |
9ca25fed | 509 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
510 | case RMAP_COMPILE_SUCCESS: |
511 | break; | |
d62a17ae | 512 | } |
9ca25fed | 513 | |
d62a17ae | 514 | return CMD_SUCCESS; |
515 | } | |
516 | ||
d5d737a2 SP |
517 | int generic_set_delete(struct route_map_index *index, |
518 | const char *command, const char *arg, | |
519 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 520 | { |
cda7187d | 521 | enum rmap_compile_rets ret; |
d62a17ae | 522 | |
523 | ret = route_map_delete_set(index, command, arg); | |
9ca25fed DS |
524 | switch (ret) { |
525 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
526 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
527 | frr_protonameinst); | |
9ca25fed | 528 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 529 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
530 | snprintf(errmsg, errmsg_len, |
531 | "%% [%s] Argument form is unsupported or malformed.", | |
532 | frr_protonameinst); | |
9ca25fed | 533 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
534 | case RMAP_COMPILE_SUCCESS: |
535 | break; | |
d62a17ae | 536 | } |
9ca25fed | 537 | |
d62a17ae | 538 | return CMD_SUCCESS; |
539 | } | |
540 | ||
541 | ||
718e3744 | 542 | /* Master list of route map. */ |
a7282663 RZ |
543 | struct route_map_list route_map_master = {NULL, NULL, NULL, NULL, NULL}; |
544 | struct hash *route_map_master_hash = NULL; | |
a6e0d253 | 545 | |
d8b87afe | 546 | static unsigned int route_map_hash_key_make(const void *p) |
a6e0d253 | 547 | { |
d62a17ae | 548 | const struct route_map *map = p; |
549 | return string_hash_make(map->name); | |
a6e0d253 DW |
550 | } |
551 | ||
74df8d6d | 552 | static bool route_map_hash_cmp(const void *p1, const void *p2) |
a6e0d253 | 553 | { |
d62a17ae | 554 | const struct route_map *map1 = p1; |
555 | const struct route_map *map2 = p2; | |
a6e0d253 | 556 | |
5f503e5f DS |
557 | if (!strcmp(map1->name, map2->name)) |
558 | return true; | |
a6e0d253 | 559 | |
74df8d6d | 560 | return false; |
a6e0d253 | 561 | } |
518f0eb1 | 562 | |
d62a17ae | 563 | enum route_map_upd8_type { |
564 | ROUTE_MAP_ADD = 1, | |
565 | ROUTE_MAP_DEL, | |
566 | }; | |
518f0eb1 DS |
567 | |
568 | /* all possible route-map dependency types */ | |
d62a17ae | 569 | enum route_map_dep_type { |
570 | ROUTE_MAP_DEP_RMAP = 1, | |
571 | ROUTE_MAP_DEP_CLIST, | |
572 | ROUTE_MAP_DEP_ECLIST, | |
573 | ROUTE_MAP_DEP_LCLIST, | |
574 | ROUTE_MAP_DEP_PLIST, | |
575 | ROUTE_MAP_DEP_ASPATH, | |
576 | ROUTE_MAP_DEP_FILTER, | |
577 | ROUTE_MAP_DEP_MAX, | |
578 | }; | |
579 | ||
580 | struct route_map_dep { | |
581 | char *dep_name; | |
582 | struct hash *dep_rmap_hash; | |
583 | struct hash *this_hash; /* ptr to the hash structure this is part of */ | |
518f0eb1 | 584 | }; |
718e3744 | 585 | |
e2c8d6ce NT |
586 | struct route_map_dep_data { |
587 | /* Route-map name. | |
588 | */ | |
589 | char *rname; | |
590 | /* Count of number of sequences of this | |
591 | * route-map that depend on the same entity. | |
592 | */ | |
593 | uint16_t refcnt; | |
594 | }; | |
595 | ||
518f0eb1 | 596 | /* Hashes maintaining dependency between various sublists used by route maps */ |
1b3e9a21 | 597 | static struct hash *route_map_dep_hash[ROUTE_MAP_DEP_MAX]; |
518f0eb1 | 598 | |
d8b87afe | 599 | static unsigned int route_map_dep_hash_make_key(const void *p); |
d62a17ae | 600 | static void route_map_clear_all_references(char *rmap_name); |
601 | static void route_map_rule_delete(struct route_map_rule_list *, | |
602 | struct route_map_rule *); | |
5913a17a | 603 | |
1c950f37 | 604 | uint32_t rmap_debug; |
718e3744 | 605 | |
718e3744 | 606 | /* New route map allocation. Please note route map's name must be |
607 | specified. */ | |
d62a17ae | 608 | static struct route_map *route_map_new(const char *name) |
718e3744 | 609 | { |
d62a17ae | 610 | struct route_map *new; |
718e3744 | 611 | |
d62a17ae | 612 | new = XCALLOC(MTYPE_ROUTE_MAP, sizeof(struct route_map)); |
613 | new->name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
614 | QOBJ_REG(new, route_map); | |
615 | return new; | |
718e3744 | 616 | } |
617 | ||
618 | /* Add new name to route_map. */ | |
d62a17ae | 619 | static struct route_map *route_map_add(const char *name) |
620 | { | |
5f503e5f | 621 | struct route_map *map, *exist; |
d62a17ae | 622 | struct route_map_list *list; |
623 | ||
624 | map = route_map_new(name); | |
625 | list = &route_map_master; | |
626 | ||
5f503e5f DS |
627 | /* |
628 | * Add map to the hash | |
629 | * | |
630 | * If the map already exists in the hash, then we know that | |
631 | * FRR is now in a sequence of delete/create. | |
632 | * All FRR needs to do here is set the to_be_processed | |
633 | * bit (to inherit from the old one | |
634 | */ | |
635 | exist = hash_release(route_map_master_hash, map); | |
636 | if (exist) { | |
637 | map->to_be_processed = exist->to_be_processed; | |
638 | route_map_free_map(exist); | |
639 | } | |
d62a17ae | 640 | hash_get(route_map_master_hash, map, hash_alloc_intern); |
641 | ||
642 | /* Add new entry to the head of the list to match how it is added in the | |
643 | * hash table. This is to ensure that if the same route-map has been | |
644 | * created more than once and then marked for deletion (which can happen | |
645 | * if prior deletions haven't completed as BGP hasn't yet done the | |
646 | * route-map processing), the order of the entities is the same in both | |
647 | * the list and the hash table. Otherwise, since there is nothing to | |
648 | * distinguish between the two entries, the wrong entry could get freed. | |
649 | * TODO: This needs to be re-examined to handle it better - e.g., revive | |
650 | * a deleted entry if the route-map is created again. | |
651 | */ | |
652 | map->prev = NULL; | |
653 | map->next = list->head; | |
654 | if (list->head) | |
655 | list->head->prev = map; | |
656 | list->head = map; | |
657 | if (!list->tail) | |
658 | list->tail = map; | |
659 | ||
660 | /* Execute hook. */ | |
661 | if (route_map_master.add_hook) { | |
662 | (*route_map_master.add_hook)(name); | |
663 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_ADDED); | |
664 | } | |
e3ab8170 | 665 | |
49a08bb0 NT |
666 | if (!map->ipv4_prefix_table) |
667 | map->ipv4_prefix_table = route_table_init(); | |
668 | ||
669 | if (!map->ipv6_prefix_table) | |
670 | map->ipv6_prefix_table = route_table_init(); | |
671 | ||
5913a17a | 672 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 | 673 | zlog_debug("Add route-map %s", name); |
d62a17ae | 674 | return map; |
718e3744 | 675 | } |
676 | ||
518f0eb1 DS |
677 | /* this is supposed to be called post processing by |
678 | * the delete hook function. Don't invoke delete_hook | |
679 | * again in this routine. | |
680 | */ | |
d62a17ae | 681 | static void route_map_free_map(struct route_map *map) |
718e3744 | 682 | { |
d62a17ae | 683 | struct route_map_list *list; |
684 | struct route_map_index *index; | |
518f0eb1 | 685 | |
d62a17ae | 686 | if (map == NULL) |
687 | return; | |
a31ff449 | 688 | |
d62a17ae | 689 | while ((index = map->head) != NULL) |
690 | route_map_index_delete(index, 0); | |
718e3744 | 691 | |
5913a17a | 692 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
693 | zlog_debug("Deleting route-map %s", map->name); |
694 | ||
d62a17ae | 695 | list = &route_map_master; |
718e3744 | 696 | |
d62a17ae | 697 | QOBJ_UNREG(map); |
e80e7cce | 698 | |
d62a17ae | 699 | if (map->next) |
700 | map->next->prev = map->prev; | |
701 | else | |
702 | list->tail = map->prev; | |
718e3744 | 703 | |
d62a17ae | 704 | if (map->prev) |
705 | map->prev->next = map->next; | |
706 | else | |
707 | list->head = map->next; | |
718e3744 | 708 | |
d62a17ae | 709 | hash_release(route_map_master_hash, map); |
710 | XFREE(MTYPE_ROUTE_MAP_NAME, map->name); | |
711 | XFREE(MTYPE_ROUTE_MAP, map); | |
518f0eb1 | 712 | } |
718e3744 | 713 | |
518f0eb1 | 714 | /* Route map delete from list. */ |
a7282663 | 715 | void route_map_delete(struct route_map *map) |
518f0eb1 | 716 | { |
d62a17ae | 717 | struct route_map_index *index; |
718 | char *name; | |
518f0eb1 | 719 | |
d62a17ae | 720 | while ((index = map->head) != NULL) |
721 | route_map_index_delete(index, 0); | |
518f0eb1 | 722 | |
d62a17ae | 723 | name = map->name; |
724 | map->head = NULL; | |
518f0eb1 | 725 | |
d62a17ae | 726 | /* Clear all dependencies */ |
727 | route_map_clear_all_references(name); | |
e4694d0d | 728 | map->deleted = true; |
d62a17ae | 729 | /* Execute deletion hook. */ |
730 | if (route_map_master.delete_hook) { | |
731 | (*route_map_master.delete_hook)(name); | |
732 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_DELETED); | |
733 | } | |
718e3744 | 734 | |
d62a17ae | 735 | if (!map->to_be_processed) { |
736 | route_map_free_map(map); | |
737 | } | |
718e3744 | 738 | } |
739 | ||
740 | /* Lookup route map by route map name string. */ | |
d62a17ae | 741 | struct route_map *route_map_lookup_by_name(const char *name) |
718e3744 | 742 | { |
d62a17ae | 743 | struct route_map *map; |
744 | struct route_map tmp_map; | |
718e3744 | 745 | |
d62a17ae | 746 | if (!name) |
747 | return NULL; | |
518f0eb1 | 748 | |
5f503e5f | 749 | // map.deleted is false via memset |
6006b807 | 750 | memset(&tmp_map, 0, sizeof(tmp_map)); |
d62a17ae | 751 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
752 | map = hash_lookup(route_map_master_hash, &tmp_map); | |
753 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
5f503e5f DS |
754 | |
755 | if (map && map->deleted) | |
756 | return NULL; | |
757 | ||
d62a17ae | 758 | return map; |
718e3744 | 759 | } |
760 | ||
1de27621 DA |
761 | /* Simple helper to warn if route-map does not exist. */ |
762 | struct route_map *route_map_lookup_warn_noexist(struct vty *vty, const char *name) | |
763 | { | |
764 | struct route_map *route_map = route_map_lookup_by_name(name); | |
765 | ||
766 | if (!route_map) | |
767 | if (vty_shell_serv(vty)) | |
768 | vty_out(vty, "The route-map '%s' does not exist.\n", name); | |
769 | ||
770 | return route_map; | |
771 | } | |
772 | ||
7096e938 | 773 | int route_map_mark_updated(const char *name) |
518f0eb1 | 774 | { |
d62a17ae | 775 | struct route_map *map; |
776 | int ret = -1; | |
777 | struct route_map tmp_map; | |
518f0eb1 | 778 | |
d62a17ae | 779 | if (!name) |
780 | return (ret); | |
a6e0d253 | 781 | |
d62a17ae | 782 | map = route_map_lookup_by_name(name); |
a6e0d253 | 783 | |
e4694d0d DS |
784 | /* If we did not find the routemap with deleted=false try again |
785 | * with deleted=true | |
d62a17ae | 786 | */ |
787 | if (!map) { | |
6006b807 | 788 | memset(&tmp_map, 0, sizeof(tmp_map)); |
d62a17ae | 789 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
e4694d0d | 790 | tmp_map.deleted = true; |
d62a17ae | 791 | map = hash_lookup(route_map_master_hash, &tmp_map); |
792 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
793 | } | |
a6e0d253 | 794 | |
d62a17ae | 795 | if (map) { |
e4694d0d | 796 | map->to_be_processed = true; |
d62a17ae | 797 | ret = 0; |
798 | } | |
518f0eb1 | 799 | |
d62a17ae | 800 | return (ret); |
518f0eb1 DS |
801 | } |
802 | ||
d3822e79 | 803 | static void route_map_clear_updated(struct route_map *map) |
518f0eb1 | 804 | { |
d62a17ae | 805 | if (map) { |
e4694d0d | 806 | map->to_be_processed = false; |
d62a17ae | 807 | if (map->deleted) |
808 | route_map_free_map(map); | |
809 | } | |
518f0eb1 DS |
810 | } |
811 | ||
718e3744 | 812 | /* Lookup route map. If there isn't route map create one and return |
813 | it. */ | |
a7282663 | 814 | struct route_map *route_map_get(const char *name) |
718e3744 | 815 | { |
d62a17ae | 816 | struct route_map *map; |
718e3744 | 817 | |
d62a17ae | 818 | map = route_map_lookup_by_name(name); |
819 | if (map == NULL) | |
820 | map = route_map_add(name); | |
518f0eb1 | 821 | |
d62a17ae | 822 | return map; |
718e3744 | 823 | } |
824 | ||
46a69f10 | 825 | void route_map_walk_update_list(void (*route_map_update_fn)(char *name)) |
518f0eb1 | 826 | { |
d62a17ae | 827 | struct route_map *node; |
828 | struct route_map *nnode = NULL; | |
518f0eb1 | 829 | |
d62a17ae | 830 | for (node = route_map_master.head; node; node = nnode) { |
831 | if (node->to_be_processed) { | |
832 | /* DD: Should we add any thread yield code here */ | |
833 | route_map_update_fn(node->name); | |
834 | nnode = node->next; | |
835 | route_map_clear_updated(node); | |
836 | } else | |
837 | nnode = node->next; | |
518f0eb1 | 838 | } |
518f0eb1 DS |
839 | } |
840 | ||
718e3744 | 841 | /* Return route map's type string. */ |
d62a17ae | 842 | static const char *route_map_type_str(enum route_map_type type) |
843 | { | |
844 | switch (type) { | |
845 | case RMAP_PERMIT: | |
846 | return "permit"; | |
d62a17ae | 847 | case RMAP_DENY: |
848 | return "deny"; | |
ba1707ca | 849 | case RMAP_ANY: |
d62a17ae | 850 | return ""; |
d62a17ae | 851 | } |
4255dbe9 DS |
852 | |
853 | return ""; | |
718e3744 | 854 | } |
855 | ||
b68885f9 | 856 | static const char *route_map_cmd_result_str(enum route_map_cmd_result_t res) |
e3ab8170 AD |
857 | { |
858 | switch (res) { | |
859 | case RMAP_MATCH: | |
860 | return "match"; | |
e3ab8170 AD |
861 | case RMAP_NOMATCH: |
862 | return "no match"; | |
b68885f9 LK |
863 | case RMAP_NOOP: |
864 | return "noop"; | |
e3ab8170 AD |
865 | case RMAP_ERROR: |
866 | return "error"; | |
867 | case RMAP_OKAY: | |
868 | return "okay"; | |
869 | } | |
870 | ||
871 | return "invalid"; | |
872 | } | |
873 | ||
b68885f9 LK |
874 | static const char *route_map_result_str(route_map_result_t res) |
875 | { | |
876 | switch (res) { | |
877 | case RMAP_DENYMATCH: | |
878 | return "deny"; | |
879 | case RMAP_PERMITMATCH: | |
880 | return "permit"; | |
881 | } | |
882 | ||
883 | return "invalid"; | |
884 | } | |
885 | ||
5510e83b | 886 | /* show route-map */ |
856ed18a RW |
887 | static void vty_show_route_map_entry(struct vty *vty, struct route_map *map, |
888 | json_object *json) | |
d62a17ae | 889 | { |
890 | struct route_map_index *index; | |
891 | struct route_map_rule *rule; | |
856ed18a RW |
892 | json_object *json_rmap = NULL; |
893 | json_object *json_rules = NULL; | |
894 | ||
895 | if (json) { | |
896 | json_rmap = json_object_new_object(); | |
897 | json_object_object_add(json, map->name, json_rmap); | |
898 | ||
899 | json_rules = json_object_new_array(); | |
900 | json_object_int_add(json_rmap, "invoked", | |
901 | map->applied - map->applied_clear); | |
902 | json_object_boolean_add(json_rmap, "disabledOptimization", | |
903 | map->optimization_disabled); | |
904 | json_object_boolean_add(json_rmap, "processedChange", | |
905 | map->to_be_processed); | |
906 | json_object_object_add(json_rmap, "rules", json_rules); | |
907 | } else { | |
908 | vty_out(vty, | |
909 | "route-map: %s Invoked: %" PRIu64 | |
910 | " Optimization: %s Processed Change: %s\n", | |
911 | map->name, map->applied - map->applied_clear, | |
912 | map->optimization_disabled ? "disabled" : "enabled", | |
913 | map->to_be_processed ? "true" : "false"); | |
914 | } | |
d62a17ae | 915 | |
916 | for (index = map->head; index; index = index->next) { | |
856ed18a RW |
917 | if (json) { |
918 | json_object *json_rule; | |
919 | json_object *json_matches; | |
920 | json_object *json_sets; | |
921 | char action[BUFSIZ] = {}; | |
922 | ||
923 | json_rule = json_object_new_object(); | |
924 | json_object_array_add(json_rules, json_rule); | |
925 | ||
926 | json_object_int_add(json_rule, "sequenceNumber", | |
927 | index->pref); | |
928 | json_object_string_add(json_rule, "type", | |
929 | route_map_type_str(index->type)); | |
930 | json_object_int_add(json_rule, "invoked", | |
931 | index->applied | |
932 | - index->applied_clear); | |
933 | ||
934 | /* Description */ | |
935 | if (index->description) | |
936 | json_object_string_add(json_rule, "description", | |
937 | index->description); | |
938 | ||
939 | /* Match clauses */ | |
940 | json_matches = json_object_new_array(); | |
941 | json_object_object_add(json_rule, "matchClauses", | |
942 | json_matches); | |
943 | for (rule = index->match_list.head; rule; | |
944 | rule = rule->next) { | |
945 | char buf[BUFSIZ]; | |
946 | ||
947 | snprintf(buf, sizeof(buf), "%s %s", | |
948 | rule->cmd->str, rule->rule_str); | |
949 | json_array_string_add(json_matches, buf); | |
950 | } | |
951 | ||
952 | /* Set clauses */ | |
953 | json_sets = json_object_new_array(); | |
954 | json_object_object_add(json_rule, "setClauses", | |
955 | json_sets); | |
956 | for (rule = index->set_list.head; rule; | |
957 | rule = rule->next) { | |
958 | char buf[BUFSIZ]; | |
959 | ||
960 | snprintf(buf, sizeof(buf), "%s %s", | |
961 | rule->cmd->str, rule->rule_str); | |
962 | json_array_string_add(json_sets, buf); | |
963 | } | |
964 | ||
965 | /* Call clause */ | |
966 | if (index->nextrm) | |
967 | json_object_string_add(json_rule, "callClause", | |
968 | index->nextrm); | |
969 | ||
970 | /* Exit Policy */ | |
971 | if (index->exitpolicy == RMAP_GOTO) | |
972 | snprintf(action, sizeof(action), "Goto %d", | |
973 | index->nextpref); | |
974 | else if (index->exitpolicy == RMAP_NEXT) | |
975 | snprintf(action, sizeof(action), | |
976 | "Continue to next entry"); | |
977 | else if (index->exitpolicy == RMAP_EXIT) | |
978 | snprintf(action, sizeof(action), | |
979 | "Exit routemap"); | |
980 | if (action[0] != '\0') | |
981 | json_object_string_add(json_rule, "action", | |
982 | action); | |
983 | } else { | |
984 | vty_out(vty, " %s, sequence %d Invoked %" PRIu64 "\n", | |
985 | route_map_type_str(index->type), index->pref, | |
986 | index->applied - index->applied_clear); | |
987 | ||
988 | /* Description */ | |
989 | if (index->description) | |
990 | vty_out(vty, " Description:\n %s\n", | |
991 | index->description); | |
992 | ||
993 | /* Match clauses */ | |
994 | vty_out(vty, " Match clauses:\n"); | |
995 | for (rule = index->match_list.head; rule; | |
996 | rule = rule->next) | |
997 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
998 | rule->rule_str); | |
999 | ||
1000 | /* Set clauses */ | |
1001 | vty_out(vty, " Set clauses:\n"); | |
1002 | for (rule = index->set_list.head; rule; | |
1003 | rule = rule->next) | |
1004 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
1005 | rule->rule_str); | |
1006 | ||
1007 | /* Call clause */ | |
1008 | vty_out(vty, " Call clause:\n"); | |
1009 | if (index->nextrm) | |
1010 | vty_out(vty, " Call %s\n", index->nextrm); | |
1011 | ||
1012 | /* Exit Policy */ | |
1013 | vty_out(vty, " Action:\n"); | |
1014 | if (index->exitpolicy == RMAP_GOTO) | |
1015 | vty_out(vty, " Goto %d\n", index->nextpref); | |
1016 | else if (index->exitpolicy == RMAP_NEXT) | |
1017 | vty_out(vty, " Continue to next entry\n"); | |
1018 | else if (index->exitpolicy == RMAP_EXIT) | |
1019 | vty_out(vty, " Exit routemap\n"); | |
1020 | } | |
d62a17ae | 1021 | } |
1022 | } | |
1023 | ||
78b1bb5f QY |
1024 | static int sort_route_map(const void **map1, const void **map2) |
1025 | { | |
1026 | const struct route_map *m1 = *map1; | |
1027 | const struct route_map *m2 = *map2; | |
1028 | ||
1029 | return strcmp(m1->name, m2->name); | |
1030 | } | |
1031 | ||
856ed18a | 1032 | static int vty_show_route_map(struct vty *vty, const char *name, bool use_json) |
d62a17ae | 1033 | { |
1034 | struct route_map *map; | |
856ed18a RW |
1035 | json_object *json = NULL; |
1036 | json_object *json_proto = NULL; | |
d62a17ae | 1037 | |
856ed18a RW |
1038 | if (use_json) { |
1039 | json = json_object_new_object(); | |
1040 | json_proto = json_object_new_object(); | |
1041 | json_object_object_add(json, frr_protonameinst, json_proto); | |
1042 | } else | |
1043 | vty_out(vty, "%s:\n", frr_protonameinst); | |
279b0607 | 1044 | |
d62a17ae | 1045 | if (name) { |
1046 | map = route_map_lookup_by_name(name); | |
1047 | ||
1048 | if (map) { | |
856ed18a | 1049 | vty_show_route_map_entry(vty, map, json_proto); |
856ed18a | 1050 | } else if (!use_json) { |
d62a17ae | 1051 | vty_out(vty, "%s: 'route-map %s' not found\n", |
1052 | frr_protonameinst, name); | |
d62a17ae | 1053 | } |
1054 | } else { | |
78b1bb5f QY |
1055 | |
1056 | struct list *maplist = list_new(); | |
1057 | struct listnode *ln; | |
1058 | ||
d62a17ae | 1059 | for (map = route_map_master.head; map; map = map->next) |
78b1bb5f QY |
1060 | listnode_add(maplist, map); |
1061 | ||
1062 | list_sort(maplist, sort_route_map); | |
1063 | ||
1064 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
856ed18a | 1065 | vty_show_route_map_entry(vty, map, json_proto); |
78b1bb5f | 1066 | |
6a154c88 | 1067 | list_delete(&maplist); |
d62a17ae | 1068 | } |
856ed18a | 1069 | |
ad9df66c | 1070 | return vty_json(vty, json); |
5510e83b | 1071 | } |
1072 | ||
4a2a09d0 | 1073 | /* Unused route map details */ |
1074 | static int vty_show_unused_route_map(struct vty *vty) | |
1075 | { | |
1076 | struct list *maplist = list_new(); | |
1077 | struct listnode *ln; | |
1078 | struct route_map *map; | |
1079 | ||
1080 | for (map = route_map_master.head; map; map = map->next) { | |
1081 | /* If use_count is zero, No protocol is using this routemap. | |
1082 | * so adding to the list. | |
1083 | */ | |
1084 | if (!map->use_count) | |
1085 | listnode_add(maplist, map); | |
1086 | } | |
1087 | ||
1088 | if (maplist->count > 0) { | |
1089 | vty_out(vty, "\n%s:\n", frr_protonameinst); | |
1090 | list_sort(maplist, sort_route_map); | |
1091 | ||
1092 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
856ed18a | 1093 | vty_show_route_map_entry(vty, map, NULL); |
4a2a09d0 | 1094 | } else { |
1095 | vty_out(vty, "\n%s: None\n", frr_protonameinst); | |
1096 | } | |
1097 | ||
1098 | list_delete(&maplist); | |
1099 | return CMD_SUCCESS; | |
1100 | } | |
5510e83b | 1101 | |
718e3744 | 1102 | /* New route map allocation. Please note route map's name must be |
1103 | specified. */ | |
d62a17ae | 1104 | static struct route_map_index *route_map_index_new(void) |
718e3744 | 1105 | { |
d62a17ae | 1106 | struct route_map_index *new; |
718e3744 | 1107 | |
d62a17ae | 1108 | new = XCALLOC(MTYPE_ROUTE_MAP_INDEX, sizeof(struct route_map_index)); |
1109 | new->exitpolicy = RMAP_EXIT; /* Default to Cisco-style */ | |
54a35ff4 | 1110 | TAILQ_INIT(&new->rhclist); |
d62a17ae | 1111 | QOBJ_REG(new, route_map_index); |
1112 | return new; | |
718e3744 | 1113 | } |
1114 | ||
1115 | /* Free route map index. */ | |
a7282663 | 1116 | void route_map_index_delete(struct route_map_index *index, int notify) |
718e3744 | 1117 | { |
1c4eca64 | 1118 | struct routemap_hook_context *rhc; |
d62a17ae | 1119 | struct route_map_rule *rule; |
718e3744 | 1120 | |
d62a17ae | 1121 | QOBJ_UNREG(index); |
e80e7cce | 1122 | |
5913a17a | 1123 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
1124 | zlog_debug("Deleting route-map %s sequence %d", |
1125 | index->map->name, index->pref); | |
1126 | ||
f0951335 RZ |
1127 | /* Free route map entry description. */ |
1128 | XFREE(MTYPE_TMP, index->description); | |
1129 | ||
54a35ff4 | 1130 | /* Free route map northbound hook contexts. */ |
1c4eca64 RZ |
1131 | while ((rhc = TAILQ_FIRST(&index->rhclist)) != NULL) |
1132 | routemap_hook_context_free(rhc); | |
54a35ff4 | 1133 | |
d62a17ae | 1134 | /* Free route match. */ |
49a08bb0 | 1135 | while ((rule = index->match_list.head) != NULL) { |
819a23f9 | 1136 | if (IS_RULE_IPv4_PREFIX_LIST(rule->cmd->str)) |
2d26f094 NT |
1137 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_DELETED, |
1138 | index, AFI_IP, rule->rule_str); | |
819a23f9 | 1139 | else if (IS_RULE_IPv6_PREFIX_LIST(rule->cmd->str)) |
2d26f094 NT |
1140 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_DELETED, |
1141 | index, AFI_IP6, | |
1142 | rule->rule_str); | |
49a08bb0 | 1143 | |
d62a17ae | 1144 | route_map_rule_delete(&index->match_list, rule); |
49a08bb0 | 1145 | } |
718e3744 | 1146 | |
d62a17ae | 1147 | /* Free route set. */ |
1148 | while ((rule = index->set_list.head) != NULL) | |
1149 | route_map_rule_delete(&index->set_list, rule); | |
718e3744 | 1150 | |
d62a17ae | 1151 | /* Remove index from route map list. */ |
1152 | if (index->next) | |
1153 | index->next->prev = index->prev; | |
1154 | else | |
1155 | index->map->tail = index->prev; | |
718e3744 | 1156 | |
d62a17ae | 1157 | if (index->prev) |
1158 | index->prev->next = index->next; | |
1159 | else | |
1160 | index->map->head = index->next; | |
718e3744 | 1161 | |
d62a17ae | 1162 | /* Free 'char *nextrm' if not NULL */ |
0a22ddfb | 1163 | XFREE(MTYPE_ROUTE_MAP_NAME, index->nextrm); |
fee0f4c6 | 1164 | |
2d26f094 | 1165 | route_map_pfx_tbl_update(RMAP_EVENT_INDEX_DELETED, index, 0, NULL); |
49a08bb0 | 1166 | |
d62a17ae | 1167 | /* Execute event hook. */ |
1168 | if (route_map_master.event_hook && notify) { | |
097b5973 | 1169 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1170 | route_map_notify_dependencies(index->map->name, |
1171 | RMAP_EVENT_CALL_ADDED); | |
1172 | } | |
1173 | XFREE(MTYPE_ROUTE_MAP_INDEX, index); | |
718e3744 | 1174 | } |
1175 | ||
1176 | /* Lookup index from route map. */ | |
d62a17ae | 1177 | static struct route_map_index *route_map_index_lookup(struct route_map *map, |
1178 | enum route_map_type type, | |
1179 | int pref) | |
718e3744 | 1180 | { |
d62a17ae | 1181 | struct route_map_index *index; |
718e3744 | 1182 | |
d62a17ae | 1183 | for (index = map->head; index; index = index->next) |
1184 | if ((index->type == type || type == RMAP_ANY) | |
1185 | && index->pref == pref) | |
1186 | return index; | |
1187 | return NULL; | |
718e3744 | 1188 | } |
1189 | ||
1190 | /* Add new index to route map. */ | |
8cc4198f | 1191 | static struct route_map_index * |
d62a17ae | 1192 | route_map_index_add(struct route_map *map, enum route_map_type type, int pref) |
1193 | { | |
1194 | struct route_map_index *index; | |
1195 | struct route_map_index *point; | |
1196 | ||
1197 | /* Allocate new route map inex. */ | |
1198 | index = route_map_index_new(); | |
1199 | index->map = map; | |
1200 | index->type = type; | |
1201 | index->pref = pref; | |
1202 | ||
1203 | /* Compare preference. */ | |
1204 | for (point = map->head; point; point = point->next) | |
1205 | if (point->pref >= pref) | |
1206 | break; | |
1207 | ||
1208 | if (map->head == NULL) { | |
1209 | map->head = map->tail = index; | |
1210 | } else if (point == NULL) { | |
1211 | index->prev = map->tail; | |
1212 | map->tail->next = index; | |
1213 | map->tail = index; | |
1214 | } else if (point == map->head) { | |
1215 | index->next = map->head; | |
1216 | map->head->prev = index; | |
1217 | map->head = index; | |
1218 | } else { | |
1219 | index->next = point; | |
1220 | index->prev = point->prev; | |
1221 | if (point->prev) | |
1222 | point->prev->next = index; | |
1223 | point->prev = index; | |
1224 | } | |
1225 | ||
2d26f094 | 1226 | route_map_pfx_tbl_update(RMAP_EVENT_INDEX_ADDED, index, 0, NULL); |
49a08bb0 | 1227 | |
d62a17ae | 1228 | /* Execute event hook. */ |
1229 | if (route_map_master.event_hook) { | |
097b5973 | 1230 | (*route_map_master.event_hook)(map->name); |
d62a17ae | 1231 | route_map_notify_dependencies(map->name, RMAP_EVENT_CALL_ADDED); |
1232 | } | |
e3ab8170 | 1233 | |
5913a17a | 1234 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
1235 | zlog_debug("Route-map %s add sequence %d, type: %s", |
1236 | map->name, pref, route_map_type_str(type)); | |
1237 | ||
d62a17ae | 1238 | return index; |
718e3744 | 1239 | } |
1240 | ||
1241 | /* Get route map index. */ | |
a7282663 | 1242 | struct route_map_index * |
d62a17ae | 1243 | route_map_index_get(struct route_map *map, enum route_map_type type, int pref) |
718e3744 | 1244 | { |
d62a17ae | 1245 | struct route_map_index *index; |
718e3744 | 1246 | |
d62a17ae | 1247 | index = route_map_index_lookup(map, RMAP_ANY, pref); |
1248 | if (index && index->type != type) { | |
1249 | /* Delete index from route map. */ | |
1250 | route_map_index_delete(index, 1); | |
1251 | index = NULL; | |
1252 | } | |
1253 | if (index == NULL) | |
1254 | index = route_map_index_add(map, type, pref); | |
1255 | return index; | |
718e3744 | 1256 | } |
1257 | ||
1258 | /* New route map rule */ | |
d62a17ae | 1259 | static struct route_map_rule *route_map_rule_new(void) |
718e3744 | 1260 | { |
d62a17ae | 1261 | struct route_map_rule *new; |
718e3744 | 1262 | |
d62a17ae | 1263 | new = XCALLOC(MTYPE_ROUTE_MAP_RULE, sizeof(struct route_map_rule)); |
1264 | return new; | |
718e3744 | 1265 | } |
6b0655a2 | 1266 | |
718e3744 | 1267 | /* Install rule command to the match list. */ |
88711d8a | 1268 | void _route_map_install_match(struct route_map_rule_cmd_proxy *proxy) |
718e3744 | 1269 | { |
88711d8a | 1270 | rmap_cmd_name_add(rmap_match_cmds, proxy); |
718e3744 | 1271 | } |
1272 | ||
1273 | /* Install rule command to the set list. */ | |
88711d8a | 1274 | void _route_map_install_set(struct route_map_rule_cmd_proxy *proxy) |
718e3744 | 1275 | { |
88711d8a | 1276 | rmap_cmd_name_add(rmap_set_cmds, proxy); |
718e3744 | 1277 | } |
1278 | ||
1279 | /* Lookup rule command from match list. */ | |
364deb04 | 1280 | static const struct route_map_rule_cmd *route_map_lookup_match(const char *name) |
718e3744 | 1281 | { |
88711d8a DL |
1282 | struct route_map_rule_cmd refcmd = {.str = name}; |
1283 | struct route_map_rule_cmd_proxy ref = {.cmd = &refcmd}; | |
1284 | struct route_map_rule_cmd_proxy *res; | |
718e3744 | 1285 | |
88711d8a DL |
1286 | res = rmap_cmd_name_find(rmap_match_cmds, &ref); |
1287 | if (res) | |
1288 | return res->cmd; | |
d62a17ae | 1289 | return NULL; |
718e3744 | 1290 | } |
1291 | ||
1292 | /* Lookup rule command from set list. */ | |
364deb04 | 1293 | static const struct route_map_rule_cmd *route_map_lookup_set(const char *name) |
718e3744 | 1294 | { |
88711d8a DL |
1295 | struct route_map_rule_cmd refcmd = {.str = name}; |
1296 | struct route_map_rule_cmd_proxy ref = {.cmd = &refcmd}; | |
1297 | struct route_map_rule_cmd_proxy *res; | |
718e3744 | 1298 | |
88711d8a DL |
1299 | res = rmap_cmd_name_find(rmap_set_cmds, &ref); |
1300 | if (res) | |
1301 | return res->cmd; | |
d62a17ae | 1302 | return NULL; |
718e3744 | 1303 | } |
1304 | ||
1305 | /* Add match and set rule to rule list. */ | |
d62a17ae | 1306 | static void route_map_rule_add(struct route_map_rule_list *list, |
1307 | struct route_map_rule *rule) | |
718e3744 | 1308 | { |
d62a17ae | 1309 | rule->next = NULL; |
1310 | rule->prev = list->tail; | |
1311 | if (list->tail) | |
1312 | list->tail->next = rule; | |
1313 | else | |
1314 | list->head = rule; | |
1315 | list->tail = rule; | |
718e3744 | 1316 | } |
1317 | ||
1318 | /* Delete rule from rule list. */ | |
d62a17ae | 1319 | static void route_map_rule_delete(struct route_map_rule_list *list, |
1320 | struct route_map_rule *rule) | |
718e3744 | 1321 | { |
d62a17ae | 1322 | if (rule->cmd->func_free) |
1323 | (*rule->cmd->func_free)(rule->value); | |
718e3744 | 1324 | |
0a22ddfb | 1325 | XFREE(MTYPE_ROUTE_MAP_RULE_STR, rule->rule_str); |
718e3744 | 1326 | |
d62a17ae | 1327 | if (rule->next) |
1328 | rule->next->prev = rule->prev; | |
1329 | else | |
1330 | list->tail = rule->prev; | |
1331 | if (rule->prev) | |
1332 | rule->prev->next = rule->next; | |
1333 | else | |
1334 | list->head = rule->next; | |
718e3744 | 1335 | |
d62a17ae | 1336 | XFREE(MTYPE_ROUTE_MAP_RULE, rule); |
718e3744 | 1337 | } |
1338 | ||
1339 | /* strcmp wrapper function which don't crush even argument is NULL. */ | |
d62a17ae | 1340 | static int rulecmp(const char *dst, const char *src) |
1341 | { | |
1342 | if (dst == NULL) { | |
1343 | if (src == NULL) | |
1344 | return 0; | |
1345 | else | |
1346 | return 1; | |
1347 | } else { | |
1348 | if (src == NULL) | |
1349 | return 1; | |
1350 | else | |
1351 | return strcmp(dst, src); | |
1352 | } | |
718e3744 | 1353 | return 1; |
718e3744 | 1354 | } |
1355 | ||
518f0eb1 DS |
1356 | /* Use this to return the already specified argument for this match. This is |
1357 | * useful to get the specified argument with a route map match rule when the | |
1358 | * rule is being deleted and the argument is not provided. | |
1359 | */ | |
d62a17ae | 1360 | const char *route_map_get_match_arg(struct route_map_index *index, |
1361 | const char *match_name) | |
518f0eb1 | 1362 | { |
d62a17ae | 1363 | struct route_map_rule *rule; |
364deb04 | 1364 | const struct route_map_rule_cmd *cmd; |
518f0eb1 | 1365 | |
d62a17ae | 1366 | /* First lookup rule for add match statement. */ |
1367 | cmd = route_map_lookup_match(match_name); | |
1368 | if (cmd == NULL) | |
1369 | return NULL; | |
518f0eb1 | 1370 | |
d62a17ae | 1371 | for (rule = index->match_list.head; rule; rule = rule->next) |
1372 | if (rule->cmd == cmd && rule->rule_str != NULL) | |
1373 | return (rule->rule_str); | |
518f0eb1 | 1374 | |
95f7965d | 1375 | return NULL; |
518f0eb1 DS |
1376 | } |
1377 | ||
e2c8d6ce NT |
1378 | static route_map_event_t get_route_map_delete_event(route_map_event_t type) |
1379 | { | |
1380 | switch (type) { | |
1381 | case RMAP_EVENT_CALL_ADDED: | |
1382 | return RMAP_EVENT_CALL_DELETED; | |
1383 | case RMAP_EVENT_PLIST_ADDED: | |
1384 | return RMAP_EVENT_PLIST_DELETED; | |
1385 | case RMAP_EVENT_CLIST_ADDED: | |
1386 | return RMAP_EVENT_CLIST_DELETED; | |
1387 | case RMAP_EVENT_ECLIST_ADDED: | |
1388 | return RMAP_EVENT_ECLIST_DELETED; | |
1389 | case RMAP_EVENT_LLIST_ADDED: | |
1390 | return RMAP_EVENT_LLIST_DELETED; | |
1391 | case RMAP_EVENT_ASLIST_ADDED: | |
1392 | return RMAP_EVENT_ASLIST_DELETED; | |
1393 | case RMAP_EVENT_FILTER_ADDED: | |
1394 | return RMAP_EVENT_FILTER_DELETED; | |
1395 | case RMAP_EVENT_SET_ADDED: | |
1396 | case RMAP_EVENT_SET_DELETED: | |
1397 | case RMAP_EVENT_SET_REPLACED: | |
1398 | case RMAP_EVENT_MATCH_ADDED: | |
1399 | case RMAP_EVENT_MATCH_DELETED: | |
1400 | case RMAP_EVENT_MATCH_REPLACED: | |
1401 | case RMAP_EVENT_INDEX_ADDED: | |
1402 | case RMAP_EVENT_INDEX_DELETED: | |
1403 | case RMAP_EVENT_CALL_DELETED: | |
1404 | case RMAP_EVENT_PLIST_DELETED: | |
1405 | case RMAP_EVENT_CLIST_DELETED: | |
1406 | case RMAP_EVENT_ECLIST_DELETED: | |
1407 | case RMAP_EVENT_LLIST_DELETED: | |
1408 | case RMAP_EVENT_ASLIST_DELETED: | |
1409 | case RMAP_EVENT_FILTER_DELETED: | |
1410 | /* This function returns the appropriate 'deleted' event type | |
1411 | * for every 'added' event type passed to this function. | |
1412 | * This is done only for named entities used in the | |
1413 | * route-map match commands. | |
1414 | * This function is not to be invoked for any of the other event | |
1415 | * types. | |
1416 | */ | |
1417 | assert(0); | |
1418 | } | |
f232dd29 DS |
1419 | |
1420 | assert(0); | |
1421 | /* | |
1422 | * Return to make c happy but if we get here something has gone | |
1423 | * terribly terribly wrong, so yes this return makes no sense. | |
1424 | */ | |
1425 | return RMAP_EVENT_CALL_ADDED; | |
e2c8d6ce NT |
1426 | } |
1427 | ||
718e3744 | 1428 | /* Add match statement to route map. */ |
cda7187d DS |
1429 | enum rmap_compile_rets route_map_add_match(struct route_map_index *index, |
1430 | const char *match_name, | |
1431 | const char *match_arg, | |
1432 | route_map_event_t type) | |
d62a17ae | 1433 | { |
1434 | struct route_map_rule *rule; | |
1435 | struct route_map_rule *next; | |
364deb04 | 1436 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1437 | void *compile; |
e2c8d6ce | 1438 | int8_t delete_rmap_event_type = 0; |
909f3d56 | 1439 | const char *rule_key; |
d62a17ae | 1440 | |
1441 | /* First lookup rule for add match statement. */ | |
1442 | cmd = route_map_lookup_match(match_name); | |
1443 | if (cmd == NULL) | |
1444 | return RMAP_RULE_MISSING; | |
1445 | ||
1446 | /* Next call compile function for this match statement. */ | |
1447 | if (cmd->func_compile) { | |
1448 | compile = (*cmd->func_compile)(match_arg); | |
1449 | if (compile == NULL) | |
1450 | return RMAP_COMPILE_ERROR; | |
1451 | } else | |
1452 | compile = NULL; | |
909f3d56 | 1453 | /* use the compiled results if applicable */ |
1454 | if (compile && cmd->func_get_rmap_rule_key) | |
1455 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1456 | (compile); | |
1457 | else | |
1458 | rule_key = match_arg; | |
d62a17ae | 1459 | |
1460 | /* If argument is completely same ignore it. */ | |
1461 | for (rule = index->match_list.head; rule; rule = next) { | |
1462 | next = rule->next; | |
1463 | if (rule->cmd == cmd) { | |
6c3247bd NT |
1464 | /* If the configured route-map match rule is exactly |
1465 | * the same as the existing configuration then, | |
1466 | * ignore the duplicate configuration. | |
1467 | */ | |
30475121 | 1468 | if (rulecmp(match_arg, rule->rule_str) == 0) { |
6c3247bd NT |
1469 | if (cmd->func_free) |
1470 | (*cmd->func_free)(compile); | |
e2c8d6ce | 1471 | |
909f3d56 | 1472 | return RMAP_COMPILE_SUCCESS; |
e2c8d6ce NT |
1473 | } |
1474 | ||
49a08bb0 NT |
1475 | /* If IPv4 or IPv6 prefix-list match criteria |
1476 | * has been delete to the route-map index, update | |
1477 | * the route-map's prefix table. | |
1478 | */ | |
819a23f9 | 1479 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) |
49a08bb0 | 1480 | route_map_pfx_tbl_update( |
2d26f094 NT |
1481 | RMAP_EVENT_PLIST_DELETED, index, AFI_IP, |
1482 | rule->rule_str); | |
819a23f9 | 1483 | else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) |
49a08bb0 | 1484 | route_map_pfx_tbl_update( |
2d26f094 NT |
1485 | RMAP_EVENT_PLIST_DELETED, index, |
1486 | AFI_IP6, rule->rule_str); | |
49a08bb0 | 1487 | |
e2c8d6ce NT |
1488 | /* Remove the dependency of the route-map on the rule |
1489 | * that is being replaced. | |
1490 | */ | |
1491 | if (type >= RMAP_EVENT_CALL_ADDED) { | |
1492 | delete_rmap_event_type = | |
1493 | get_route_map_delete_event(type); | |
1494 | route_map_upd8_dependency( | |
1495 | delete_rmap_event_type, | |
02e7a369 | 1496 | rule->rule_str, |
e2c8d6ce | 1497 | index->map->name); |
6c3247bd NT |
1498 | } |
1499 | ||
d62a17ae | 1500 | route_map_rule_delete(&index->match_list, rule); |
d62a17ae | 1501 | } |
718e3744 | 1502 | } |
718e3744 | 1503 | |
d62a17ae | 1504 | /* Add new route map match rule. */ |
1505 | rule = route_map_rule_new(); | |
1506 | rule->cmd = cmd; | |
1507 | rule->value = compile; | |
1508 | if (match_arg) | |
1509 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, match_arg); | |
1510 | else | |
1511 | rule->rule_str = NULL; | |
718e3744 | 1512 | |
d62a17ae | 1513 | /* Add new route match rule to linked list. */ |
1514 | route_map_rule_add(&index->match_list, rule); | |
718e3744 | 1515 | |
49a08bb0 NT |
1516 | /* If IPv4 or IPv6 prefix-list match criteria |
1517 | * has been added to the route-map index, update | |
1518 | * the route-map's prefix table. | |
1519 | */ | |
819a23f9 | 1520 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) { |
2d26f094 | 1521 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_ADDED, index, AFI_IP, |
49a08bb0 | 1522 | match_arg); |
819a23f9 | 1523 | } else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) { |
2d26f094 | 1524 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_ADDED, index, AFI_IP6, |
49a08bb0 | 1525 | match_arg); |
49a08bb0 NT |
1526 | } |
1527 | ||
d62a17ae | 1528 | /* Execute event hook. */ |
1529 | if (route_map_master.event_hook) { | |
097b5973 | 1530 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1531 | route_map_notify_dependencies(index->map->name, |
1532 | RMAP_EVENT_CALL_ADDED); | |
1533 | } | |
909f3d56 | 1534 | if (type != RMAP_EVENT_MATCH_ADDED) |
1535 | route_map_upd8_dependency(type, rule_key, index->map->name); | |
718e3744 | 1536 | |
9ca25fed | 1537 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1538 | } |
1539 | ||
1540 | /* Delete specified route match rule. */ | |
cda7187d DS |
1541 | enum rmap_compile_rets route_map_delete_match(struct route_map_index *index, |
1542 | const char *match_name, | |
909f3d56 | 1543 | const char *match_arg, |
1544 | route_map_event_t type) | |
d62a17ae | 1545 | { |
1546 | struct route_map_rule *rule; | |
364deb04 | 1547 | const struct route_map_rule_cmd *cmd; |
909f3d56 | 1548 | const char *rule_key; |
d62a17ae | 1549 | |
1550 | cmd = route_map_lookup_match(match_name); | |
1551 | if (cmd == NULL) | |
e5b4b49e | 1552 | return RMAP_RULE_MISSING; |
d62a17ae | 1553 | |
1554 | for (rule = index->match_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1555 | if (rule->cmd == cmd && (rulecmp(rule->rule_str, match_arg) == 0 |
1556 | || match_arg == NULL)) { | |
d62a17ae | 1557 | /* Execute event hook. */ |
1558 | if (route_map_master.event_hook) { | |
097b5973 | 1559 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1560 | route_map_notify_dependencies( |
1561 | index->map->name, | |
1562 | RMAP_EVENT_CALL_ADDED); | |
1563 | } | |
909f3d56 | 1564 | if (cmd->func_get_rmap_rule_key) |
1565 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1566 | (rule->value); | |
1567 | else | |
1568 | rule_key = match_arg; | |
1569 | ||
1570 | if (type != RMAP_EVENT_MATCH_DELETED && rule_key) | |
1571 | route_map_upd8_dependency(type, rule_key, | |
1572 | index->map->name); | |
1573 | ||
1574 | route_map_rule_delete(&index->match_list, rule); | |
49a08bb0 NT |
1575 | |
1576 | /* If IPv4 or IPv6 prefix-list match criteria | |
3eca8715 | 1577 | * has been delete from the route-map index, update |
49a08bb0 NT |
1578 | * the route-map's prefix table. |
1579 | */ | |
819a23f9 | 1580 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) { |
49a08bb0 | 1581 | route_map_pfx_tbl_update( |
2d26f094 NT |
1582 | RMAP_EVENT_PLIST_DELETED, index, AFI_IP, |
1583 | match_arg); | |
819a23f9 | 1584 | } else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) { |
49a08bb0 | 1585 | route_map_pfx_tbl_update( |
2d26f094 NT |
1586 | RMAP_EVENT_PLIST_DELETED, index, |
1587 | AFI_IP6, match_arg); | |
49a08bb0 NT |
1588 | } |
1589 | ||
e5b4b49e | 1590 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1591 | } |
1592 | /* Can't find matched rule. */ | |
e5b4b49e | 1593 | return RMAP_RULE_MISSING; |
718e3744 | 1594 | } |
1595 | ||
1596 | /* Add route-map set statement to the route map. */ | |
cda7187d DS |
1597 | enum rmap_compile_rets route_map_add_set(struct route_map_index *index, |
1598 | const char *set_name, | |
1599 | const char *set_arg) | |
d62a17ae | 1600 | { |
1601 | struct route_map_rule *rule; | |
1602 | struct route_map_rule *next; | |
364deb04 | 1603 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1604 | void *compile; |
d62a17ae | 1605 | |
1606 | cmd = route_map_lookup_set(set_name); | |
1607 | if (cmd == NULL) | |
1608 | return RMAP_RULE_MISSING; | |
1609 | ||
1610 | /* Next call compile function for this match statement. */ | |
1611 | if (cmd->func_compile) { | |
1612 | compile = (*cmd->func_compile)(set_arg); | |
1613 | if (compile == NULL) | |
1614 | return RMAP_COMPILE_ERROR; | |
1615 | } else | |
1616 | compile = NULL; | |
1617 | ||
1618 | /* Add by WJL. if old set command of same kind exist, delete it first | |
1619 | to ensure only one set command of same kind exist under a | |
1620 | route_map_index. */ | |
1621 | for (rule = index->set_list.head; rule; rule = next) { | |
1622 | next = rule->next; | |
4255dbe9 | 1623 | if (rule->cmd == cmd) |
d62a17ae | 1624 | route_map_rule_delete(&index->set_list, rule); |
d62a17ae | 1625 | } |
1626 | ||
1627 | /* Add new route map match rule. */ | |
1628 | rule = route_map_rule_new(); | |
1629 | rule->cmd = cmd; | |
1630 | rule->value = compile; | |
1631 | if (set_arg) | |
1632 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, set_arg); | |
1633 | else | |
1634 | rule->rule_str = NULL; | |
1635 | ||
1636 | /* Add new route match rule to linked list. */ | |
1637 | route_map_rule_add(&index->set_list, rule); | |
1638 | ||
1639 | /* Execute event hook. */ | |
1640 | if (route_map_master.event_hook) { | |
097b5973 | 1641 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1642 | route_map_notify_dependencies(index->map->name, |
1643 | RMAP_EVENT_CALL_ADDED); | |
718e3744 | 1644 | } |
9ca25fed | 1645 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1646 | } |
1647 | ||
1648 | /* Delete route map set rule. */ | |
cda7187d DS |
1649 | enum rmap_compile_rets route_map_delete_set(struct route_map_index *index, |
1650 | const char *set_name, | |
1651 | const char *set_arg) | |
d62a17ae | 1652 | { |
1653 | struct route_map_rule *rule; | |
364deb04 | 1654 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1655 | |
1656 | cmd = route_map_lookup_set(set_name); | |
1657 | if (cmd == NULL) | |
e5b4b49e | 1658 | return RMAP_RULE_MISSING; |
d62a17ae | 1659 | |
1660 | for (rule = index->set_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1661 | if ((rule->cmd == cmd) && (rulecmp(rule->rule_str, set_arg) == 0 |
1662 | || set_arg == NULL)) { | |
d62a17ae | 1663 | route_map_rule_delete(&index->set_list, rule); |
1664 | /* Execute event hook. */ | |
1665 | if (route_map_master.event_hook) { | |
097b5973 | 1666 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1667 | route_map_notify_dependencies( |
1668 | index->map->name, | |
1669 | RMAP_EVENT_CALL_ADDED); | |
1670 | } | |
e5b4b49e | 1671 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1672 | } |
1673 | /* Can't find matched rule. */ | |
e5b4b49e | 1674 | return RMAP_RULE_MISSING; |
718e3744 | 1675 | } |
1676 | ||
b68885f9 LK |
1677 | static enum route_map_cmd_result_t |
1678 | route_map_apply_match(struct route_map_rule_list *match_list, | |
1782514f | 1679 | const struct prefix *prefix, void *object) |
b68885f9 LK |
1680 | { |
1681 | enum route_map_cmd_result_t ret = RMAP_NOMATCH; | |
1682 | struct route_map_rule *match; | |
1683 | bool is_matched = false; | |
1684 | ||
1685 | ||
1686 | /* Check all match rule and if there is no match rule, go to the | |
1687 | set statement. */ | |
1688 | if (!match_list->head) | |
1689 | ret = RMAP_MATCH; | |
1690 | else { | |
1691 | for (match = match_list->head; match; match = match->next) { | |
1692 | /* | |
1693 | * Try each match statement. If any match does not | |
1694 | * return RMAP_MATCH or RMAP_NOOP, return. | |
1695 | * Otherwise continue on to next match statement. | |
1696 | * All match statements must MATCH for | |
1697 | * end-result to be a match. | |
1698 | * (Exception:If match stmts result in a mix of | |
1699 | * MATCH/NOOP, then also end-result is a match) | |
1700 | * If all result in NOOP, end-result is NOOP. | |
1701 | */ | |
1702 | ret = (*match->cmd->func_apply)(match->value, prefix, | |
1782514f | 1703 | object); |
b68885f9 LK |
1704 | |
1705 | /* | |
1706 | * If the consolidated result of func_apply is: | |
1707 | * ----------------------------------------------- | |
1708 | * | MATCH | NOMATCH | NOOP | Final Result | | |
1709 | * ------------------------------------------------ | |
1710 | * | yes | yes | yes | NOMATCH | | |
1711 | * | no | no | yes | NOOP | | |
1712 | * | yes | no | yes | MATCH | | |
1713 | * | no | yes | yes | NOMATCH | | |
1714 | * |----------------------------------------------- | |
1715 | * | |
1716 | * Traditionally, all rules within route-map | |
1717 | * should match for it to MATCH. | |
1718 | * If there are noops within the route-map rules, | |
1719 | * it follows the above matrix. | |
1720 | * | |
1721 | * Eg: route-map rm1 permit 10 | |
1722 | * match rule1 | |
1723 | * match rule2 | |
1724 | * match rule3 | |
1725 | * .... | |
1726 | * route-map rm1 permit 20 | |
1727 | * match ruleX | |
1728 | * match ruleY | |
1729 | * ... | |
1730 | */ | |
1731 | ||
1732 | switch (ret) { | |
1733 | case RMAP_MATCH: | |
1734 | is_matched = true; | |
1735 | break; | |
1736 | ||
1737 | case RMAP_NOMATCH: | |
1738 | return ret; | |
1739 | ||
1740 | case RMAP_NOOP: | |
1741 | if (is_matched) | |
1742 | ret = RMAP_MATCH; | |
1743 | break; | |
1744 | ||
bde30e78 DS |
1745 | case RMAP_OKAY: |
1746 | case RMAP_ERROR: | |
b68885f9 LK |
1747 | break; |
1748 | } | |
1749 | ||
1750 | } | |
1751 | } | |
1752 | return ret; | |
1753 | } | |
1754 | ||
2d26f094 NT |
1755 | static struct list *route_map_get_index_list(struct route_node **rn, |
1756 | const struct prefix *prefix, | |
1757 | struct route_table *table) | |
819a23f9 NT |
1758 | { |
1759 | struct route_node *tmp_rn = NULL; | |
1760 | ||
1761 | if (!(*rn)) { | |
1762 | *rn = route_node_match(table, prefix); | |
1763 | ||
1764 | if (!(*rn)) | |
1765 | return NULL; | |
1766 | ||
1767 | if ((*rn)->info) | |
1768 | return (struct list *)((*rn)->info); | |
1769 | ||
1770 | /* If rn->info is NULL, get the parent. | |
1771 | * Store the rn in tmp_rn and unlock it later. | |
1772 | */ | |
1773 | tmp_rn = *rn; | |
1774 | } | |
1775 | ||
1776 | do { | |
1777 | *rn = (*rn)->parent; | |
1778 | if (tmp_rn) | |
1779 | route_unlock_node(tmp_rn); | |
1780 | ||
1781 | if (!(*rn)) | |
1782 | break; | |
1783 | ||
1784 | if ((*rn)->info) { | |
1785 | route_lock_node(*rn); | |
1786 | return (struct list *)((*rn)->info); | |
1787 | } | |
1788 | } while (!(*rn)->info); | |
1789 | ||
1790 | return NULL; | |
1791 | } | |
1792 | ||
1793 | /* | |
1794 | * This function returns the route-map index that best matches the prefix. | |
1795 | */ | |
a34ce5c5 MR |
1796 | static struct route_map_index * |
1797 | route_map_get_index(struct route_map *map, const struct prefix *prefix, | |
1798 | void *object, enum route_map_cmd_result_t *match_ret) | |
819a23f9 | 1799 | { |
a34ce5c5 | 1800 | enum route_map_cmd_result_t ret = RMAP_NOMATCH; |
819a23f9 NT |
1801 | struct list *candidate_rmap_list = NULL; |
1802 | struct route_node *rn = NULL; | |
1803 | struct listnode *ln = NULL, *nn = NULL; | |
1804 | struct route_map_index *index = NULL, *best_index = NULL; | |
1805 | struct route_map_index *head_index = NULL; | |
1806 | struct route_table *table = NULL; | |
a33b4d3f SW |
1807 | struct prefix conv; |
1808 | unsigned char family; | |
1809 | ||
1810 | /* | |
1811 | * Handling for matching evpn_routes in the prefix table. | |
1812 | * | |
1813 | * We convert type2/5 prefix to ipv4/6 prefix to do longest | |
1814 | * prefix matching on. | |
1815 | */ | |
1816 | if (prefix->family == AF_EVPN) { | |
1817 | if (evpn_prefix2prefix(prefix, &conv) != 0) | |
1818 | return NULL; | |
1819 | ||
1820 | prefix = &conv; | |
1821 | } | |
1822 | ||
1823 | ||
1824 | family = prefix->family; | |
819a23f9 NT |
1825 | |
1826 | if (family == AF_INET) | |
1827 | table = map->ipv4_prefix_table; | |
1828 | else | |
1829 | table = map->ipv6_prefix_table; | |
1830 | ||
1831 | if (!table) | |
1832 | return NULL; | |
1833 | ||
1834 | do { | |
2d26f094 NT |
1835 | candidate_rmap_list = |
1836 | route_map_get_index_list(&rn, prefix, table); | |
819a23f9 NT |
1837 | if (!rn) |
1838 | break; | |
1839 | ||
1840 | /* If the index at the head of the list is of seq higher | |
1841 | * than that in best_index, ignore the list and get the | |
1842 | * parent node's list. | |
1843 | */ | |
2d26f094 NT |
1844 | head_index = (struct route_map_index *)(listgetdata( |
1845 | listhead(candidate_rmap_list))); | |
1846 | if (best_index && head_index | |
1847 | && (best_index->pref < head_index->pref)) { | |
819a23f9 NT |
1848 | route_unlock_node(rn); |
1849 | continue; | |
1850 | } | |
1851 | ||
1852 | for (ALL_LIST_ELEMENTS(candidate_rmap_list, ln, nn, index)) { | |
1853 | /* If the index is of seq higher than that in | |
1854 | * best_index, ignore the list and get the parent | |
1855 | * node's list. | |
1856 | */ | |
1857 | if (best_index && (best_index->pref < index->pref)) | |
1858 | break; | |
1859 | ||
2d26f094 | 1860 | ret = route_map_apply_match(&index->match_list, prefix, |
1782514f | 1861 | object); |
819a23f9 NT |
1862 | |
1863 | if (ret == RMAP_MATCH) { | |
1864 | *match_ret = ret; | |
1865 | best_index = index; | |
1866 | break; | |
1867 | } else if (ret == RMAP_NOOP) { | |
1868 | /* | |
1869 | * If match_ret is denymatch, even if we see | |
1870 | * more noops, we retain this return value and | |
1871 | * return this eventually if there are no | |
1872 | * matches. | |
1410dd3f NT |
1873 | * If a best match route-map index already |
1874 | * exists, do not reset the match_ret. | |
819a23f9 | 1875 | */ |
1410dd3f | 1876 | if (!best_index && (*match_ret != RMAP_NOMATCH)) |
819a23f9 NT |
1877 | *match_ret = ret; |
1878 | } else { | |
1879 | /* | |
1880 | * ret is RMAP_NOMATCH. | |
1410dd3f NT |
1881 | * If a best match route-map index already |
1882 | * exists, do not reset the match_ret. | |
819a23f9 | 1883 | */ |
1410dd3f NT |
1884 | if (!best_index) |
1885 | *match_ret = ret; | |
819a23f9 NT |
1886 | } |
1887 | } | |
1888 | ||
1889 | route_unlock_node(rn); | |
1890 | ||
1891 | } while (rn); | |
1892 | ||
1893 | return best_index; | |
1894 | } | |
1895 | ||
2d26f094 NT |
1896 | static int route_map_candidate_list_cmp(struct route_map_index *idx1, |
1897 | struct route_map_index *idx2) | |
49a08bb0 | 1898 | { |
78946603 | 1899 | return idx1->pref - idx2->pref; |
49a08bb0 NT |
1900 | } |
1901 | ||
1902 | /* | |
1903 | * This function adds the route-map index into the default route's | |
1904 | * route-node in the route-map's IPv4/IPv6 prefix-table. | |
1905 | */ | |
2d26f094 NT |
1906 | static void route_map_pfx_table_add_default(afi_t afi, |
1907 | struct route_map_index *index) | |
49a08bb0 NT |
1908 | { |
1909 | struct route_node *rn = NULL; | |
1910 | struct list *rmap_candidate_list = NULL; | |
1911 | struct prefix p; | |
1912 | bool updated_rn = false; | |
1913 | struct route_table *table = NULL; | |
1914 | ||
1915 | memset(&p, 0, sizeof(p)); | |
1916 | p.family = afi2family(afi); | |
1917 | p.prefixlen = 0; | |
1918 | ||
1919 | if (p.family == AF_INET) { | |
1920 | table = index->map->ipv4_prefix_table; | |
1921 | if (!table) | |
1922 | index->map->ipv4_prefix_table = route_table_init(); | |
1923 | ||
1924 | table = index->map->ipv4_prefix_table; | |
1925 | } else { | |
1926 | table = index->map->ipv6_prefix_table; | |
1927 | if (!table) | |
1928 | index->map->ipv6_prefix_table = route_table_init(); | |
1929 | ||
1930 | table = index->map->ipv6_prefix_table; | |
1931 | } | |
1932 | ||
1933 | /* Add default route to table */ | |
1934 | rn = route_node_get(table, &p); | |
1935 | ||
1936 | if (!rn) | |
1937 | return; | |
1938 | ||
1939 | if (!rn->info) { | |
1940 | rmap_candidate_list = list_new(); | |
1941 | rmap_candidate_list->cmp = | |
1942 | (int (*)(void *, void *))route_map_candidate_list_cmp; | |
1943 | rn->info = rmap_candidate_list; | |
1944 | } else { | |
1945 | rmap_candidate_list = (struct list *)rn->info; | |
1946 | updated_rn = true; | |
1947 | } | |
1948 | ||
1949 | listnode_add_sort_nodup(rmap_candidate_list, index); | |
1950 | if (updated_rn) | |
1951 | route_unlock_node(rn); | |
1952 | } | |
1953 | ||
1954 | /* | |
1955 | * This function removes the route-map index from the default route's | |
1956 | * route-node in the route-map's IPv4/IPv6 prefix-table. | |
1957 | */ | |
2d26f094 NT |
1958 | static void route_map_pfx_table_del_default(afi_t afi, |
1959 | struct route_map_index *index) | |
49a08bb0 NT |
1960 | { |
1961 | struct route_node *rn = NULL; | |
1962 | struct list *rmap_candidate_list = NULL; | |
1963 | struct prefix p; | |
1964 | struct route_table *table = NULL; | |
1965 | ||
1966 | memset(&p, 0, sizeof(p)); | |
1967 | p.family = afi2family(afi); | |
1968 | p.prefixlen = 0; | |
1969 | ||
1970 | if (p.family == AF_INET) | |
1971 | table = index->map->ipv4_prefix_table; | |
1972 | else | |
1973 | table = index->map->ipv6_prefix_table; | |
1974 | ||
1975 | /* Remove RMAP index from default route in table */ | |
1976 | rn = route_node_lookup(table, &p); | |
1977 | if (!rn || !rn->info) | |
1978 | return; | |
1979 | ||
1980 | rmap_candidate_list = (struct list *)rn->info; | |
1981 | ||
1982 | listnode_delete(rmap_candidate_list, index); | |
1983 | ||
1984 | if (listcount(rmap_candidate_list) == 0) { | |
1985 | list_delete(&rmap_candidate_list); | |
1986 | rn->info = NULL; | |
1987 | route_unlock_node(rn); | |
1988 | } | |
1989 | route_unlock_node(rn); | |
1990 | } | |
1991 | ||
1992 | /* | |
1993 | * This function adds the route-map index to the route-node for | |
1994 | * the prefix-entry in the route-map's IPv4/IPv6 prefix-table. | |
1995 | */ | |
2d26f094 NT |
1996 | static void route_map_pfx_table_add(struct route_table *table, |
1997 | struct route_map_index *index, | |
1998 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
1999 | { |
2000 | struct route_node *rn = NULL; | |
2001 | struct list *rmap_candidate_list = NULL; | |
2002 | bool updated_rn = false; | |
2003 | ||
2004 | rn = route_node_get(table, &pentry->prefix); | |
2005 | if (!rn) | |
2006 | return; | |
2007 | ||
2008 | if (!rn->info) { | |
2009 | rmap_candidate_list = list_new(); | |
2010 | rmap_candidate_list->cmp = | |
2011 | (int (*)(void *, void *))route_map_candidate_list_cmp; | |
2012 | rn->info = rmap_candidate_list; | |
2013 | } else { | |
2014 | rmap_candidate_list = (struct list *)rn->info; | |
2015 | updated_rn = true; | |
2016 | } | |
2017 | ||
2018 | listnode_add_sort_nodup(rmap_candidate_list, index); | |
2019 | if (updated_rn) | |
2020 | route_unlock_node(rn); | |
2021 | } | |
2022 | ||
2023 | /* | |
2024 | * This function removes the route-map index from the route-node for | |
2025 | * the prefix-entry in the route-map's IPv4/IPv6 prefix-table. | |
2026 | */ | |
2d26f094 NT |
2027 | static void route_map_pfx_table_del(struct route_table *table, |
2028 | struct route_map_index *index, | |
2029 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
2030 | { |
2031 | struct route_node *rn = NULL; | |
2032 | struct list *rmap_candidate_list = NULL; | |
2033 | ||
2034 | rn = route_node_lookup(table, &pentry->prefix); | |
2035 | if (!rn || !rn->info) | |
2036 | return; | |
2037 | ||
2038 | rmap_candidate_list = (struct list *)rn->info; | |
2039 | ||
2040 | listnode_delete(rmap_candidate_list, index); | |
2041 | ||
2042 | if (listcount(rmap_candidate_list) == 0) { | |
2043 | list_delete(&rmap_candidate_list); | |
2044 | rn->info = NULL; | |
2045 | route_unlock_node(rn); | |
2046 | } | |
2047 | route_unlock_node(rn); | |
2048 | } | |
2049 | ||
3eca8715 NT |
2050 | /* This function checks for the presence of an IPv4 prefix-list |
2051 | * match rule in the given route-map index. | |
49a08bb0 | 2052 | */ |
3eca8715 | 2053 | static bool route_map_is_ip_pfx_list_rule_present(struct route_map_index *index) |
49a08bb0 NT |
2054 | { |
2055 | struct route_map_rule_list *match_list = NULL; | |
2056 | struct route_map_rule *rule = NULL; | |
2057 | ||
2058 | match_list = &index->match_list; | |
2059 | for (rule = match_list->head; rule; rule = rule->next) | |
3eca8715 | 2060 | if (IS_RULE_IPv4_PREFIX_LIST(rule->cmd->str)) |
49a08bb0 NT |
2061 | return true; |
2062 | ||
2063 | return false; | |
2064 | } | |
2065 | ||
3eca8715 NT |
2066 | /* This function checks for the presence of an IPv6 prefix-list |
2067 | * match rule in the given route-map index. | |
49a08bb0 | 2068 | */ |
3eca8715 NT |
2069 | static bool |
2070 | route_map_is_ipv6_pfx_list_rule_present(struct route_map_index *index) | |
49a08bb0 NT |
2071 | { |
2072 | struct route_map_rule_list *match_list = NULL; | |
2073 | struct route_map_rule *rule = NULL; | |
2074 | ||
2075 | match_list = &index->match_list; | |
2076 | for (rule = match_list->head; rule; rule = rule->next) | |
3eca8715 | 2077 | if (IS_RULE_IPv6_PREFIX_LIST(rule->cmd->str)) |
49a08bb0 NT |
2078 | return true; |
2079 | ||
2080 | return false; | |
2081 | } | |
2082 | ||
2083 | /* This function does the following: | |
2084 | * 1) If plist_name is not present, search for a IPv4 or IPv6 prefix-list | |
2085 | * match clause (based on the afi passed to this foo) and get the | |
2086 | * prefix-list name. | |
2087 | * 2) Look up the prefix-list using the name. | |
2088 | * 3) If the prefix-list is not found then, add the index to the IPv4/IPv6 | |
2089 | * default-route's node in the trie (based on the afi passed to this foo). | |
2090 | * 4) If the prefix-list is found then, remove the index from the IPv4/IPv6 | |
2091 | * default-route's node in the trie (based on the afi passed to this foo). | |
2092 | * 5) If a prefix-entry is passed then, create a route-node for this entry and | |
2093 | * add this index to the route-node. | |
2094 | * 6) If prefix-entry is not passed then, for every prefix-entry in the | |
2095 | * prefix-list, create a route-node for this entry and | |
2096 | * add this index to the route-node. | |
2097 | */ | |
2d26f094 NT |
2098 | static void route_map_add_plist_entries(afi_t afi, |
2099 | struct route_map_index *index, | |
2100 | const char *plist_name, | |
2101 | struct prefix_list_entry *entry) | |
49a08bb0 NT |
2102 | { |
2103 | struct route_map_rule_list *match_list = NULL; | |
2104 | struct route_map_rule *match = NULL; | |
2105 | struct prefix_list *plist = NULL; | |
2106 | struct prefix_list_entry *pentry = NULL; | |
2107 | bool plist_rule_is_present = false; | |
2108 | ||
2109 | if (!plist_name) { | |
2110 | match_list = &index->match_list; | |
2111 | ||
2112 | for (match = match_list->head; match; match = match->next) { | |
819a23f9 | 2113 | if (afi == AFI_IP) { |
2d26f094 | 2114 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2115 | plist_rule_is_present = true; |
2116 | break; | |
2d26f094 | 2117 | } |
819a23f9 | 2118 | } else { |
2d26f094 | 2119 | if (IS_RULE_IPv6_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2120 | plist_rule_is_present = true; |
2121 | break; | |
2d26f094 | 2122 | } |
49a08bb0 NT |
2123 | } |
2124 | } | |
2125 | ||
2126 | if (plist_rule_is_present) | |
2127 | plist = prefix_list_lookup(afi, match->rule_str); | |
2128 | } else { | |
2129 | plist = prefix_list_lookup(afi, plist_name); | |
2130 | } | |
2131 | ||
2132 | if (!plist) { | |
2133 | route_map_pfx_table_add_default(afi, index); | |
2134 | return; | |
2135 | } | |
2136 | ||
4718791c TA |
2137 | /* Default entry should be deleted only if the first entry of the |
2138 | * prefix-list is created. | |
2139 | */ | |
2140 | if (entry) { | |
2141 | if (plist->count == 1) | |
2142 | route_map_pfx_table_del_default(afi, index); | |
2143 | } else { | |
2144 | route_map_pfx_table_del_default(afi, index); | |
2145 | } | |
49a08bb0 NT |
2146 | |
2147 | if (entry) { | |
2148 | if (afi == AFI_IP) { | |
2d26f094 NT |
2149 | route_map_pfx_table_add(index->map->ipv4_prefix_table, |
2150 | index, entry); | |
49a08bb0 | 2151 | } else { |
2d26f094 NT |
2152 | route_map_pfx_table_add(index->map->ipv6_prefix_table, |
2153 | index, entry); | |
49a08bb0 NT |
2154 | } |
2155 | } else { | |
2156 | for (pentry = plist->head; pentry; pentry = pentry->next) { | |
2157 | if (afi == AFI_IP) { | |
2158 | route_map_pfx_table_add( | |
2d26f094 NT |
2159 | index->map->ipv4_prefix_table, index, |
2160 | pentry); | |
49a08bb0 NT |
2161 | } else { |
2162 | route_map_pfx_table_add( | |
2d26f094 NT |
2163 | index->map->ipv6_prefix_table, index, |
2164 | pentry); | |
49a08bb0 NT |
2165 | } |
2166 | } | |
2167 | } | |
2168 | } | |
2169 | ||
2170 | /* This function does the following: | |
2171 | * 1) If plist_name is not present, search for a IPv4 or IPv6 prefix-list | |
2172 | * match clause (based on the afi passed to this foo) and get the | |
2173 | * prefix-list name. | |
2174 | * 2) Look up the prefix-list using the name. | |
2175 | * 3) If the prefix-list is not found then, delete the index from the IPv4/IPv6 | |
2176 | * default-route's node in the trie (based on the afi passed to this foo). | |
2177 | * 4) If a prefix-entry is passed then, remove this index from the route-node | |
2178 | * for the prefix in this prefix-entry. | |
2179 | * 5) If prefix-entry is not passed then, for every prefix-entry in the | |
2180 | * prefix-list, remove this index from the route-node | |
2181 | * for the prefix in this prefix-entry. | |
2182 | */ | |
2d26f094 NT |
2183 | static void route_map_del_plist_entries(afi_t afi, |
2184 | struct route_map_index *index, | |
2185 | const char *plist_name, | |
2186 | struct prefix_list_entry *entry) | |
49a08bb0 NT |
2187 | { |
2188 | struct route_map_rule_list *match_list = NULL; | |
2189 | struct route_map_rule *match = NULL; | |
2190 | struct prefix_list *plist = NULL; | |
2191 | struct prefix_list_entry *pentry = NULL; | |
2192 | bool plist_rule_is_present = false; | |
2193 | ||
2194 | if (!plist_name) { | |
2195 | match_list = &index->match_list; | |
2196 | ||
2197 | for (match = match_list->head; match; match = match->next) { | |
819a23f9 | 2198 | if (afi == AFI_IP) { |
2d26f094 | 2199 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2200 | plist_rule_is_present = true; |
2201 | break; | |
2d26f094 | 2202 | } |
819a23f9 | 2203 | } else { |
2d26f094 | 2204 | if (IS_RULE_IPv6_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2205 | plist_rule_is_present = true; |
2206 | break; | |
2d26f094 | 2207 | } |
49a08bb0 NT |
2208 | } |
2209 | } | |
2210 | ||
2211 | if (plist_rule_is_present) | |
2212 | plist = prefix_list_lookup(afi, match->rule_str); | |
2213 | } else { | |
2214 | plist = prefix_list_lookup(afi, plist_name); | |
2215 | } | |
2216 | ||
2217 | if (!plist) { | |
2218 | route_map_pfx_table_del_default(afi, index); | |
2219 | return; | |
2220 | } | |
2221 | ||
2222 | if (entry) { | |
2223 | if (afi == AFI_IP) { | |
2d26f094 NT |
2224 | route_map_pfx_table_del(index->map->ipv4_prefix_table, |
2225 | index, entry); | |
49a08bb0 | 2226 | } else { |
2d26f094 NT |
2227 | route_map_pfx_table_del(index->map->ipv6_prefix_table, |
2228 | index, entry); | |
49a08bb0 NT |
2229 | } |
2230 | } else { | |
2231 | for (pentry = plist->head; pentry; pentry = pentry->next) { | |
2232 | if (afi == AFI_IP) { | |
2233 | route_map_pfx_table_del( | |
2d26f094 NT |
2234 | index->map->ipv4_prefix_table, index, |
2235 | pentry); | |
49a08bb0 NT |
2236 | } else { |
2237 | route_map_pfx_table_del( | |
2d26f094 NT |
2238 | index->map->ipv6_prefix_table, index, |
2239 | pentry); | |
49a08bb0 NT |
2240 | } |
2241 | } | |
2242 | } | |
2243 | } | |
2244 | ||
2245 | /* | |
2246 | * This function handles the cases where a prefix-list is added/removed | |
2247 | * as a match command from a particular route-map index. | |
2248 | * It updates the prefix-table of the route-map accordingly. | |
2249 | */ | |
2d26f094 NT |
2250 | static void route_map_trie_update(afi_t afi, route_map_event_t event, |
2251 | struct route_map_index *index, | |
2252 | const char *plist_name) | |
49a08bb0 NT |
2253 | { |
2254 | if (event == RMAP_EVENT_PLIST_ADDED) { | |
2255 | if (afi == AFI_IP) { | |
3eca8715 | 2256 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) { |
2d26f094 | 2257 | route_map_pfx_table_del_default(AFI_IP6, index); |
49a08bb0 NT |
2258 | route_map_add_plist_entries(afi, index, |
2259 | plist_name, NULL); | |
2260 | } else { | |
2261 | route_map_del_plist_entries(AFI_IP6, index, | |
2262 | NULL, NULL); | |
2263 | } | |
2264 | } else { | |
3eca8715 | 2265 | if (!route_map_is_ip_pfx_list_rule_present(index)) { |
2d26f094 | 2266 | route_map_pfx_table_del_default(AFI_IP, index); |
49a08bb0 NT |
2267 | route_map_add_plist_entries(afi, index, |
2268 | plist_name, NULL); | |
2269 | } else { | |
2d26f094 NT |
2270 | route_map_del_plist_entries(AFI_IP, index, NULL, |
2271 | NULL); | |
49a08bb0 NT |
2272 | } |
2273 | } | |
2274 | } else if (event == RMAP_EVENT_PLIST_DELETED) { | |
2275 | if (afi == AFI_IP) { | |
2d26f094 NT |
2276 | route_map_del_plist_entries(afi, index, plist_name, |
2277 | NULL); | |
49a08bb0 | 2278 | |
3eca8715 NT |
2279 | /* If IPv6 prefix-list match rule is not present, |
2280 | * add this index to the IPv4 default route's trie | |
2281 | * node. | |
2282 | * Also, add this index to the trie nodes created | |
2283 | * for each of the prefix-entries within the IPv6 | |
2284 | * prefix-list, if the IPv6 prefix-list match rule | |
2285 | * is present. Else, add this index to the IPv6 | |
2286 | * default route's trie node. | |
2287 | */ | |
2288 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) | |
49a08bb0 NT |
2289 | route_map_pfx_table_add_default(afi, index); |
2290 | ||
3eca8715 | 2291 | route_map_add_plist_entries(AFI_IP6, index, NULL, NULL); |
49a08bb0 | 2292 | } else { |
2d26f094 NT |
2293 | route_map_del_plist_entries(afi, index, plist_name, |
2294 | NULL); | |
49a08bb0 | 2295 | |
3eca8715 NT |
2296 | /* If IPv4 prefix-list match rule is not present, |
2297 | * add this index to the IPv6 default route's trie | |
2298 | * node. | |
2299 | * Also, add this index to the trie nodes created | |
2300 | * for each of the prefix-entries within the IPv4 | |
2301 | * prefix-list, if the IPv4 prefix-list match rule | |
2302 | * is present. Else, add this index to the IPv4 | |
2303 | * default route's trie node. | |
2304 | */ | |
2305 | if (!route_map_is_ip_pfx_list_rule_present(index)) | |
49a08bb0 NT |
2306 | route_map_pfx_table_add_default(afi, index); |
2307 | ||
3eca8715 | 2308 | route_map_add_plist_entries(AFI_IP, index, NULL, NULL); |
49a08bb0 NT |
2309 | } |
2310 | } | |
2311 | } | |
2312 | ||
2313 | /* | |
2314 | * This function handles the cases where a route-map index and | |
2315 | * prefix-list is added/removed. | |
2316 | * It updates the prefix-table of the route-map accordingly. | |
2317 | */ | |
2d26f094 NT |
2318 | static void route_map_pfx_tbl_update(route_map_event_t event, |
2319 | struct route_map_index *index, afi_t afi, | |
2320 | const char *plist_name) | |
49a08bb0 NT |
2321 | { |
2322 | struct route_map *rmap = NULL; | |
2323 | ||
2324 | if (!index) | |
2325 | return; | |
2326 | ||
2327 | if (event == RMAP_EVENT_INDEX_ADDED) { | |
2328 | route_map_pfx_table_add_default(AFI_IP, index); | |
2329 | route_map_pfx_table_add_default(AFI_IP6, index); | |
2330 | return; | |
2331 | } | |
2332 | ||
2333 | if (event == RMAP_EVENT_INDEX_DELETED) { | |
2334 | route_map_pfx_table_del_default(AFI_IP, index); | |
2335 | route_map_pfx_table_del_default(AFI_IP6, index); | |
2336 | ||
2d26f094 | 2337 | if ((index->map->head == NULL) && (index->map->tail == NULL)) { |
49a08bb0 NT |
2338 | rmap = index->map; |
2339 | ||
2340 | if (rmap->ipv4_prefix_table) { | |
2341 | route_table_finish(rmap->ipv4_prefix_table); | |
2342 | rmap->ipv4_prefix_table = NULL; | |
2343 | } | |
2344 | ||
2345 | if (rmap->ipv6_prefix_table) { | |
2346 | route_table_finish(rmap->ipv6_prefix_table); | |
2347 | rmap->ipv6_prefix_table = NULL; | |
2348 | } | |
2349 | } | |
2350 | return; | |
2351 | } | |
2352 | ||
2353 | /* Handle prefix-list match rule addition/deletion. | |
2354 | */ | |
2d26f094 | 2355 | route_map_trie_update(afi, event, index, plist_name); |
49a08bb0 NT |
2356 | } |
2357 | ||
2358 | /* | |
2359 | * This function handles the cases where a new prefix-entry is added to | |
2360 | * a prefix-list or, an existing prefix-entry is removed from the prefix-list. | |
2361 | * It updates the prefix-table of the route-map accordingly. | |
2362 | */ | |
2d26f094 NT |
2363 | static void route_map_pentry_update(route_map_event_t event, |
2364 | const char *plist_name, | |
2365 | struct route_map_index *index, | |
2366 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
2367 | { |
2368 | struct prefix_list *plist = NULL; | |
2369 | afi_t afi; | |
2370 | unsigned char family = pentry->prefix.family; | |
2371 | ||
2372 | if (family == AF_INET) { | |
2373 | afi = AFI_IP; | |
2374 | plist = prefix_list_lookup(AFI_IP, plist_name); | |
2375 | } else { | |
2376 | afi = AFI_IP6; | |
2377 | plist = prefix_list_lookup(AFI_IP6, plist_name); | |
2378 | } | |
2379 | ||
2380 | if (event == RMAP_EVENT_PLIST_ADDED) { | |
3eca8715 NT |
2381 | if (afi == AFI_IP) { |
2382 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) | |
2383 | route_map_add_plist_entries(afi, index, | |
2384 | plist_name, pentry); | |
49a08bb0 | 2385 | } else { |
3eca8715 NT |
2386 | if (!route_map_is_ip_pfx_list_rule_present(index)) |
2387 | route_map_add_plist_entries(afi, index, | |
2388 | plist_name, pentry); | |
49a08bb0 NT |
2389 | } |
2390 | } else if (event == RMAP_EVENT_PLIST_DELETED) { | |
2391 | route_map_del_plist_entries(afi, index, plist_name, pentry); | |
2392 | ||
2393 | if (plist->count == 1) { | |
2394 | if (afi == AFI_IP) { | |
3eca8715 NT |
2395 | if (!route_map_is_ipv6_pfx_list_rule_present( |
2396 | index)) | |
49a08bb0 NT |
2397 | route_map_pfx_table_add_default(afi, |
2398 | index); | |
2399 | } else { | |
3eca8715 NT |
2400 | if (!route_map_is_ip_pfx_list_rule_present( |
2401 | index)) | |
49a08bb0 NT |
2402 | route_map_pfx_table_add_default(afi, |
2403 | index); | |
2404 | } | |
2405 | } | |
2406 | } | |
2407 | } | |
2408 | ||
1ac88792 | 2409 | static void route_map_pentry_process_dependency(struct hash_bucket *bucket, |
2d26f094 | 2410 | void *data) |
49a08bb0 NT |
2411 | { |
2412 | char *rmap_name = NULL; | |
2413 | struct route_map *rmap = NULL; | |
2414 | struct route_map_index *index = NULL; | |
2415 | struct route_map_rule_list *match_list = NULL; | |
2416 | struct route_map_rule *match = NULL; | |
2417 | struct route_map_dep_data *dep_data = NULL; | |
2418 | struct route_map_pentry_dep *pentry_dep = | |
2d26f094 | 2419 | (struct route_map_pentry_dep *)data; |
49a08bb0 NT |
2420 | unsigned char family = pentry_dep->pentry->prefix.family; |
2421 | ||
1ac88792 | 2422 | dep_data = (struct route_map_dep_data *)bucket->data; |
49a08bb0 NT |
2423 | if (!dep_data) |
2424 | return; | |
2425 | ||
2426 | rmap_name = dep_data->rname; | |
2427 | rmap = route_map_lookup_by_name(rmap_name); | |
2428 | if (!rmap || !rmap->head) | |
2429 | return; | |
2430 | ||
2431 | for (index = rmap->head; index; index = index->next) { | |
2432 | match_list = &index->match_list; | |
2433 | ||
2434 | if (!match_list) | |
2435 | continue; | |
2436 | ||
2437 | for (match = match_list->head; match; match = match->next) { | |
2438 | if (strcmp(match->rule_str, pentry_dep->plist_name) | |
2d26f094 NT |
2439 | == 0) { |
2440 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str) | |
2441 | && family == AF_INET) { | |
49a08bb0 | 2442 | route_map_pentry_update( |
2d26f094 NT |
2443 | pentry_dep->event, |
2444 | pentry_dep->plist_name, index, | |
2445 | pentry_dep->pentry); | |
819a23f9 | 2446 | } else if (IS_RULE_IPv6_PREFIX_LIST( |
2d26f094 NT |
2447 | match->cmd->str) |
2448 | && family == AF_INET6) { | |
49a08bb0 | 2449 | route_map_pentry_update( |
2d26f094 NT |
2450 | pentry_dep->event, |
2451 | pentry_dep->plist_name, index, | |
2452 | pentry_dep->pentry); | |
49a08bb0 NT |
2453 | } |
2454 | } | |
2455 | } | |
2456 | } | |
2457 | } | |
2458 | ||
2d26f094 NT |
2459 | void route_map_notify_pentry_dependencies(const char *affected_name, |
2460 | struct prefix_list_entry *pentry, | |
2461 | route_map_event_t event) | |
49a08bb0 NT |
2462 | { |
2463 | struct route_map_dep *dep = NULL; | |
2464 | struct hash *upd8_hash = NULL; | |
2465 | struct route_map_pentry_dep pentry_dep; | |
2466 | ||
2467 | if (!affected_name || !pentry) | |
2468 | return; | |
2469 | ||
2470 | upd8_hash = route_map_get_dep_hash(event); | |
2471 | if (!upd8_hash) | |
2472 | return; | |
2473 | ||
2474 | dep = (struct route_map_dep *)hash_get(upd8_hash, (void *)affected_name, | |
2475 | NULL); | |
2476 | if (dep) { | |
2477 | if (!dep->this_hash) | |
2478 | dep->this_hash = upd8_hash; | |
2479 | ||
6006b807 | 2480 | memset(&pentry_dep, 0, sizeof(pentry_dep)); |
49a08bb0 NT |
2481 | pentry_dep.pentry = pentry; |
2482 | pentry_dep.plist_name = affected_name; | |
2483 | pentry_dep.event = event; | |
2484 | ||
2485 | hash_iterate(dep->dep_rmap_hash, | |
2486 | route_map_pentry_process_dependency, | |
2487 | (void *)&pentry_dep); | |
2488 | } | |
2489 | } | |
2490 | ||
3bf1c917 | 2491 | /* Apply route map's each index to the object. |
2492 | ||
2493 | The matrix for a route-map looks like this: | |
2494 | (note, this includes the description for the "NEXT" | |
2495 | and "GOTO" frobs now | |
d62a17ae | 2496 | |
b68885f9 LK |
2497 | | Match | No Match | No op |
2498 | |-----------|--------------|------- | |
2499 | permit | action | cont | cont. | |
2500 | | | default:deny | default:permit | |
2501 | -------------------+----------------------- | |
2502 | | deny | cont | cont. | |
2503 | deny | | default:deny | default:permit | |
2504 | |-----------|--------------|-------- | |
d62a17ae | 2505 | |
fee0f4c6 | 2506 | action) |
2507 | -Apply Set statements, accept route | |
2508 | -If Call statement is present jump to the specified route-map, if it | |
d62a17ae | 2509 | denies the route we finish. |
fee0f4c6 | 2510 | -If NEXT is specified, goto NEXT statement |
2511 | -If GOTO is specified, goto the first clause where pref > nextpref | |
2512 | -If nothing is specified, do as Cisco and finish | |
2513 | deny) | |
2514 | -Route is denied by route-map. | |
2515 | cont) | |
2516 | -Goto Next index | |
d62a17ae | 2517 | |
3bf1c917 | 2518 | If we get no matches after we've processed all updates, then the route |
2519 | is dropped too. | |
d62a17ae | 2520 | |
fee0f4c6 | 2521 | Some notes on the new "CALL", "NEXT" and "GOTO" |
2522 | call WORD - If this clause is matched, then the set statements | |
d62a17ae | 2523 | are executed and then we jump to route-map 'WORD'. If |
2524 | this route-map denies the route, we finish, in other | |
2525 | case we | |
2526 | do whatever the exit policy (EXIT, NEXT or GOTO) tells. | |
3bf1c917 | 2527 | on-match next - If this clause is matched, then the set statements |
d62a17ae | 2528 | are executed and then we drop through to the next clause |
214d8a60 | 2529 | on-match goto n - If this clause is matched, then the set statements |
d62a17ae | 2530 | are executed and then we goto the nth clause, or the |
2531 | first clause greater than this. In order to ensure | |
2532 | route-maps *always* exit, you cannot jump backwards. | |
2533 | Sorry ;) | |
2534 | ||
3bf1c917 | 2535 | We need to make sure our route-map processing matches the above |
718e3744 | 2536 | */ |
c2125847 IR |
2537 | route_map_result_t route_map_apply_ext(struct route_map *map, |
2538 | const struct prefix *prefix, | |
a633fb57 IS |
2539 | void *match_object, void *set_object, |
2540 | int *pref) | |
d62a17ae | 2541 | { |
2542 | static int recursion = 0; | |
b68885f9 LK |
2543 | enum route_map_cmd_result_t match_ret = RMAP_NOMATCH; |
2544 | route_map_result_t ret = RMAP_PERMITMATCH; | |
819a23f9 NT |
2545 | struct route_map_index *index = NULL; |
2546 | struct route_map_rule *set = NULL; | |
819a23f9 | 2547 | bool skip_match_clause = false; |
d62a17ae | 2548 | |
2549 | if (recursion > RMAP_RECURSION_LIMIT) { | |
040c7c3a | 2550 | flog_warn( |
450971aa | 2551 | EC_LIB_RMAP_RECURSION_LIMIT, |
d62a17ae | 2552 | "route-map recursion limit (%d) reached, discarding route", |
2553 | RMAP_RECURSION_LIMIT); | |
2554 | recursion = 0; | |
2555 | return RMAP_DENYMATCH; | |
2556 | } | |
2557 | ||
b68885f9 | 2558 | if (map == NULL || map->head == NULL) { |
e3ab8170 AD |
2559 | ret = RMAP_DENYMATCH; |
2560 | goto route_map_apply_end; | |
2561 | } | |
d62a17ae | 2562 | |
279b0607 | 2563 | map->applied++; |
819a23f9 | 2564 | |
2d26f094 NT |
2565 | if ((!map->optimization_disabled) |
2566 | && (map->ipv4_prefix_table || map->ipv6_prefix_table)) { | |
c2125847 | 2567 | index = route_map_get_index(map, prefix, match_object, |
a34ce5c5 | 2568 | &match_ret); |
819a23f9 | 2569 | if (index) { |
284a6f5f | 2570 | index->applied++; |
5913a17a | 2571 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
819a23f9 | 2572 | zlog_debug( |
2dbe669b DA |
2573 | "Best match route-map: %s, sequence: %d for pfx: %pFX, result: %s", |
2574 | map->name, index->pref, prefix, | |
819a23f9 NT |
2575 | route_map_cmd_result_str(match_ret)); |
2576 | } else { | |
5913a17a | 2577 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
2d26f094 | 2578 | zlog_debug( |
2dbe669b DA |
2579 | "No best match sequence for pfx: %pFX in route-map: %s, result: %s", |
2580 | prefix, map->name, | |
2d26f094 | 2581 | route_map_cmd_result_str(match_ret)); |
819a23f9 NT |
2582 | /* |
2583 | * No index matches this prefix. Return deny unless, | |
2584 | * match_ret = RMAP_NOOP. | |
2585 | */ | |
2586 | if (match_ret == RMAP_NOOP) | |
2587 | ret = RMAP_PERMITMATCH; | |
2588 | else | |
2589 | ret = RMAP_DENYMATCH; | |
2590 | goto route_map_apply_end; | |
e3ab8170 | 2591 | } |
819a23f9 NT |
2592 | skip_match_clause = true; |
2593 | } else { | |
2594 | index = map->head; | |
2595 | } | |
2596 | ||
2597 | for (; index; index = index->next) { | |
a8f58eb6 | 2598 | if (!skip_match_clause) { |
00aef028 | 2599 | index->applied++; |
819a23f9 NT |
2600 | /* Apply this index. */ |
2601 | match_ret = route_map_apply_match(&index->match_list, | |
c2125847 | 2602 | prefix, match_object); |
5913a17a | 2603 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) { |
819a23f9 | 2604 | zlog_debug( |
2dbe669b DA |
2605 | "Route-map: %s, sequence: %d, prefix: %pFX, result: %s", |
2606 | map->name, index->pref, prefix, | |
819a23f9 NT |
2607 | route_map_cmd_result_str(match_ret)); |
2608 | } | |
2609 | } else | |
2610 | skip_match_clause = false; | |
2611 | ||
e3ab8170 | 2612 | |
d62a17ae | 2613 | /* Now we apply the matrix from above */ |
b68885f9 LK |
2614 | if (match_ret == RMAP_NOOP) |
2615 | /* | |
2616 | * Do not change the return value. Retain the previous | |
2617 | * return value. Previous values can be: | |
2618 | * 1)permitmatch (if a nomatch was never | |
2619 | * seen before in this route-map.) | |
2620 | * 2)denymatch (if a nomatch was seen earlier in one | |
2621 | * of the previous sequences) | |
2622 | */ | |
2623 | ||
2624 | /* | |
2625 | * 'cont' from matrix - continue to next route-map | |
2626 | * sequence | |
2627 | */ | |
d62a17ae | 2628 | continue; |
b68885f9 LK |
2629 | else if (match_ret == RMAP_NOMATCH) { |
2630 | ||
2631 | /* | |
2632 | * The return value is now changed to denymatch. | |
2633 | * So from here on out, even if we see more noops, | |
2634 | * we retain this return value and return this | |
2635 | * eventually if there are no matches. | |
2636 | */ | |
2637 | ret = RMAP_DENYMATCH; | |
2638 | ||
2639 | /* | |
2640 | * 'cont' from matrix - continue to next route-map | |
2641 | * sequence | |
2642 | */ | |
2643 | continue; | |
2644 | } else if (match_ret == RMAP_MATCH) { | |
d62a17ae | 2645 | if (index->type == RMAP_PERMIT) |
2646 | /* 'action' */ | |
2647 | { | |
b68885f9 LK |
2648 | /* Match succeeded, rmap is of type permit */ |
2649 | ret = RMAP_PERMITMATCH; | |
2650 | ||
d62a17ae | 2651 | /* permit+match must execute sets */ |
2652 | for (set = index->set_list.head; set; | |
2653 | set = set->next) | |
b68885f9 LK |
2654 | /* |
2655 | * set cmds return RMAP_OKAY or | |
2656 | * RMAP_ERROR. We do not care if | |
2657 | * set succeeded or not. So, ignore | |
2658 | * return code. | |
2659 | */ | |
1782514f | 2660 | (void)(*set->cmd->func_apply)( |
c2125847 | 2661 | set->value, prefix, set_object); |
d62a17ae | 2662 | |
2663 | /* Call another route-map if available */ | |
2664 | if (index->nextrm) { | |
2665 | struct route_map *nextrm = | |
2666 | route_map_lookup_by_name( | |
2667 | index->nextrm); | |
2668 | ||
2669 | if (nextrm) /* Target route-map found, | |
2670 | jump to it */ | |
2671 | { | |
2672 | recursion++; | |
c2125847 IR |
2673 | ret = route_map_apply_ext( |
2674 | nextrm, prefix, | |
2675 | match_object, | |
a633fb57 | 2676 | set_object, NULL); |
d62a17ae | 2677 | recursion--; |
2678 | } | |
2679 | ||
2680 | /* If nextrm returned 'deny', finish. */ | |
2681 | if (ret == RMAP_DENYMATCH) | |
e3ab8170 | 2682 | goto route_map_apply_end; |
d62a17ae | 2683 | } |
2684 | ||
2685 | switch (index->exitpolicy) { | |
2686 | case RMAP_EXIT: | |
e3ab8170 | 2687 | goto route_map_apply_end; |
d62a17ae | 2688 | case RMAP_NEXT: |
2689 | continue; | |
2690 | case RMAP_GOTO: { | |
2691 | /* Find the next clause to jump to */ | |
2692 | struct route_map_index *next = | |
2693 | index->next; | |
2694 | int nextpref = index->nextpref; | |
2695 | ||
2696 | while (next && next->pref < nextpref) { | |
2697 | index = next; | |
2698 | next = next->next; | |
2699 | } | |
2700 | if (next == NULL) { | |
2701 | /* No clauses match! */ | |
e3ab8170 | 2702 | goto route_map_apply_end; |
d62a17ae | 2703 | } |
2704 | } | |
2705 | } | |
2706 | } else if (index->type == RMAP_DENY) | |
2707 | /* 'deny' */ | |
2708 | { | |
e3ab8170 AD |
2709 | ret = RMAP_DENYMATCH; |
2710 | goto route_map_apply_end; | |
d62a17ae | 2711 | } |
2712 | } | |
2713 | } | |
e3ab8170 AD |
2714 | |
2715 | route_map_apply_end: | |
5913a17a | 2716 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
2dbe669b DA |
2717 | zlog_debug("Route-map: %s, prefix: %pFX, result: %s", |
2718 | (map ? map->name : "null"), prefix, | |
e3ab8170 | 2719 | route_map_result_str(ret)); |
e3ab8170 | 2720 | |
a633fb57 IS |
2721 | if (pref) { |
2722 | if (index != NULL && ret == RMAP_PERMITMATCH) | |
2723 | *pref = index->pref; | |
2724 | else | |
2725 | *pref = 65536; | |
2726 | } | |
2727 | ||
e3ab8170 | 2728 | return (ret); |
d62a17ae | 2729 | } |
2730 | ||
2731 | void route_map_add_hook(void (*func)(const char *)) | |
2732 | { | |
2733 | route_map_master.add_hook = func; | |
2734 | } | |
2735 | ||
2736 | void route_map_delete_hook(void (*func)(const char *)) | |
2737 | { | |
2738 | route_map_master.delete_hook = func; | |
2739 | } | |
2740 | ||
097b5973 | 2741 | void route_map_event_hook(void (*func)(const char *name)) |
d62a17ae | 2742 | { |
2743 | route_map_master.event_hook = func; | |
718e3744 | 2744 | } |
2745 | ||
518f0eb1 | 2746 | /* Routines for route map dependency lists and dependency processing */ |
74df8d6d | 2747 | static bool route_map_rmap_hash_cmp(const void *p1, const void *p2) |
518f0eb1 | 2748 | { |
e2c8d6ce NT |
2749 | return strcmp(((const struct route_map_dep_data *)p1)->rname, |
2750 | ((const struct route_map_dep_data *)p2)->rname) | |
2751 | == 0; | |
518f0eb1 DS |
2752 | } |
2753 | ||
74df8d6d | 2754 | static bool route_map_dep_hash_cmp(const void *p1, const void *p2) |
518f0eb1 DS |
2755 | { |
2756 | ||
d62a17ae | 2757 | return (strcmp(((const struct route_map_dep *)p1)->dep_name, |
2758 | (const char *)p2) | |
2759 | == 0); | |
518f0eb1 DS |
2760 | } |
2761 | ||
e3b78da8 | 2762 | static void route_map_clear_reference(struct hash_bucket *bucket, void *arg) |
518f0eb1 | 2763 | { |
e2c8d6ce NT |
2764 | struct route_map_dep *dep = bucket->data; |
2765 | struct route_map_dep_data *dep_data = NULL, tmp_dep_data; | |
518f0eb1 | 2766 | |
6006b807 | 2767 | memset(&tmp_dep_data, 0, sizeof(tmp_dep_data)); |
db8db580 DS |
2768 | tmp_dep_data.rname = arg; |
2769 | dep_data = hash_release(dep->dep_rmap_hash, &tmp_dep_data); | |
2770 | if (dep_data) { | |
5913a17a | 2771 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
af87aff6 DS |
2772 | zlog_debug("Clearing reference for %s to %s count: %d", |
2773 | dep->dep_name, tmp_dep_data.rname, | |
2774 | dep_data->refcnt); | |
2775 | ||
db8db580 DS |
2776 | XFREE(MTYPE_ROUTE_MAP_NAME, dep_data->rname); |
2777 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, dep_data); | |
2778 | } | |
2779 | if (!dep->dep_rmap_hash->count) { | |
2780 | dep = hash_release(dep->this_hash, (void *)dep->dep_name); | |
2781 | hash_free(dep->dep_rmap_hash); | |
2782 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
2783 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
518f0eb1 | 2784 | } |
d62a17ae | 2785 | } |
2786 | ||
2787 | static void route_map_clear_all_references(char *rmap_name) | |
2788 | { | |
2789 | int i; | |
2790 | ||
5913a17a | 2791 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
af87aff6 DS |
2792 | zlog_debug("Clearing references for %s", rmap_name); |
2793 | ||
d62a17ae | 2794 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
2795 | hash_iterate(route_map_dep_hash[i], route_map_clear_reference, | |
2796 | (void *)rmap_name); | |
518f0eb1 | 2797 | } |
518f0eb1 DS |
2798 | } |
2799 | ||
e2c8d6ce NT |
2800 | static unsigned int route_map_dep_data_hash_make_key(const void *p) |
2801 | { | |
2802 | const struct route_map_dep_data *dep_data = p; | |
2803 | ||
2804 | return string_hash_make(dep_data->rname); | |
2805 | } | |
2806 | ||
d62a17ae | 2807 | static void *route_map_dep_hash_alloc(void *p) |
518f0eb1 | 2808 | { |
d62a17ae | 2809 | char *dep_name = (char *)p; |
2810 | struct route_map_dep *dep_entry; | |
2811 | ||
2812 | dep_entry = XCALLOC(MTYPE_ROUTE_MAP_DEP, sizeof(struct route_map_dep)); | |
2813 | dep_entry->dep_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
996c9314 | 2814 | dep_entry->dep_rmap_hash = |
e2c8d6ce | 2815 | hash_create_size(8, route_map_dep_data_hash_make_key, |
996c9314 | 2816 | route_map_rmap_hash_cmp, "Route Map Dep Hash"); |
d62a17ae | 2817 | dep_entry->this_hash = NULL; |
2818 | ||
e2c8d6ce | 2819 | return dep_entry; |
d62a17ae | 2820 | } |
518f0eb1 | 2821 | |
d62a17ae | 2822 | static void *route_map_name_hash_alloc(void *p) |
2823 | { | |
e2c8d6ce NT |
2824 | struct route_map_dep_data *dep_data = NULL, *tmp_dep_data = NULL; |
2825 | ||
2826 | dep_data = XCALLOC(MTYPE_ROUTE_MAP_DEP_DATA, | |
2827 | sizeof(struct route_map_dep_data)); | |
2828 | tmp_dep_data = p; | |
2829 | dep_data->rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, tmp_dep_data->rname); | |
2830 | return dep_data; | |
518f0eb1 DS |
2831 | } |
2832 | ||
d8b87afe | 2833 | static unsigned int route_map_dep_hash_make_key(const void *p) |
518f0eb1 | 2834 | { |
d62a17ae | 2835 | return (string_hash_make((char *)p)); |
2836 | } | |
518f0eb1 | 2837 | |
e3b78da8 | 2838 | static void route_map_print_dependency(struct hash_bucket *bucket, void *data) |
d62a17ae | 2839 | { |
e2c8d6ce NT |
2840 | struct route_map_dep_data *dep_data = bucket->data; |
2841 | char *rmap_name = dep_data->rname; | |
2842 | char *dep_name = data; | |
518f0eb1 | 2843 | |
15569c58 | 2844 | zlog_debug("%s: Dependency for %s: %s", __func__, dep_name, rmap_name); |
518f0eb1 DS |
2845 | } |
2846 | ||
d62a17ae | 2847 | static int route_map_dep_update(struct hash *dephash, const char *dep_name, |
2848 | const char *rmap_name, route_map_event_t type) | |
518f0eb1 | 2849 | { |
d62a17ae | 2850 | struct route_map_dep *dep = NULL; |
d62a17ae | 2851 | char *dname, *rname; |
2852 | int ret = 0; | |
e2c8d6ce NT |
2853 | struct route_map_dep_data *dep_data = NULL, *ret_dep_data = NULL; |
2854 | struct route_map_dep_data tmp_dep_data; | |
d62a17ae | 2855 | |
2856 | dname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
2857 | rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
2858 | ||
2859 | switch (type) { | |
2860 | case RMAP_EVENT_PLIST_ADDED: | |
2861 | case RMAP_EVENT_CLIST_ADDED: | |
2862 | case RMAP_EVENT_ECLIST_ADDED: | |
2863 | case RMAP_EVENT_ASLIST_ADDED: | |
2864 | case RMAP_EVENT_LLIST_ADDED: | |
2865 | case RMAP_EVENT_CALL_ADDED: | |
2866 | case RMAP_EVENT_FILTER_ADDED: | |
5913a17a | 2867 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
2868 | zlog_debug("Adding dependency for filter %s in route-map %s", |
2869 | dep_name, rmap_name); | |
d62a17ae | 2870 | dep = (struct route_map_dep *)hash_get( |
2871 | dephash, dname, route_map_dep_hash_alloc); | |
2872 | if (!dep) { | |
2873 | ret = -1; | |
2874 | goto out; | |
2875 | } | |
2876 | ||
2877 | if (!dep->this_hash) | |
2878 | dep->this_hash = dephash; | |
2879 | ||
6006b807 | 2880 | memset(&tmp_dep_data, 0, sizeof(tmp_dep_data)); |
e2c8d6ce NT |
2881 | tmp_dep_data.rname = rname; |
2882 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
2883 | if (!dep_data) | |
2884 | dep_data = hash_get(dep->dep_rmap_hash, &tmp_dep_data, | |
2885 | route_map_name_hash_alloc); | |
2886 | ||
2887 | dep_data->refcnt++; | |
d62a17ae | 2888 | break; |
2889 | case RMAP_EVENT_PLIST_DELETED: | |
2890 | case RMAP_EVENT_CLIST_DELETED: | |
2891 | case RMAP_EVENT_ECLIST_DELETED: | |
2892 | case RMAP_EVENT_ASLIST_DELETED: | |
2893 | case RMAP_EVENT_LLIST_DELETED: | |
2894 | case RMAP_EVENT_CALL_DELETED: | |
2895 | case RMAP_EVENT_FILTER_DELETED: | |
5913a17a | 2896 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 AD |
2897 | zlog_debug("Deleting dependency for filter %s in route-map %s", |
2898 | dep_name, rmap_name); | |
d62a17ae | 2899 | dep = (struct route_map_dep *)hash_get(dephash, dname, NULL); |
2900 | if (!dep) { | |
2901 | goto out; | |
2902 | } | |
2903 | ||
6006b807 | 2904 | memset(&tmp_dep_data, 0, sizeof(tmp_dep_data)); |
e2c8d6ce NT |
2905 | tmp_dep_data.rname = rname; |
2906 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
9149c635 DS |
2907 | /* |
2908 | * If dep_data is NULL then something has gone seriously | |
2909 | * wrong in route-map handling. Note it and prevent | |
2910 | * the crash. | |
2911 | */ | |
2912 | if (!dep_data) { | |
2913 | zlog_warn( | |
2914 | "route-map dependency for route-map %s: %s is not correct", | |
2915 | rmap_name, dep_name); | |
c415a4dc | 2916 | goto out; |
9149c635 | 2917 | } |
c415a4dc | 2918 | |
9149c635 | 2919 | dep_data->refcnt--; |
e2c8d6ce NT |
2920 | |
2921 | if (!dep_data->refcnt) { | |
2922 | ret_dep_data = hash_release(dep->dep_rmap_hash, | |
2923 | &tmp_dep_data); | |
2924 | if (ret_dep_data) { | |
2925 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2926 | ret_dep_data->rname); | |
2927 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, ret_dep_data); | |
2928 | } | |
2929 | } | |
d62a17ae | 2930 | |
2931 | if (!dep->dep_rmap_hash->count) { | |
2932 | dep = hash_release(dephash, dname); | |
2933 | hash_free(dep->dep_rmap_hash); | |
2934 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
2935 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
d62a17ae | 2936 | } |
2937 | break; | |
ba1707ca DS |
2938 | case RMAP_EVENT_SET_ADDED: |
2939 | case RMAP_EVENT_SET_DELETED: | |
2940 | case RMAP_EVENT_SET_REPLACED: | |
2941 | case RMAP_EVENT_MATCH_ADDED: | |
2942 | case RMAP_EVENT_MATCH_DELETED: | |
2943 | case RMAP_EVENT_MATCH_REPLACED: | |
2944 | case RMAP_EVENT_INDEX_ADDED: | |
2945 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 2946 | break; |
2947 | } | |
2948 | ||
2949 | if (dep) { | |
5913a17a | 2950 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
d62a17ae | 2951 | hash_iterate(dep->dep_rmap_hash, |
2952 | route_map_print_dependency, dname); | |
2953 | } | |
2954 | ||
2955 | out: | |
2956 | XFREE(MTYPE_ROUTE_MAP_NAME, rname); | |
2957 | XFREE(MTYPE_ROUTE_MAP_NAME, dname); | |
2958 | return ret; | |
2959 | } | |
2960 | ||
2961 | static struct hash *route_map_get_dep_hash(route_map_event_t event) | |
2962 | { | |
2963 | struct hash *upd8_hash = NULL; | |
2964 | ||
2965 | switch (event) { | |
2966 | case RMAP_EVENT_PLIST_ADDED: | |
2967 | case RMAP_EVENT_PLIST_DELETED: | |
2968 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_PLIST]; | |
2969 | break; | |
2970 | case RMAP_EVENT_CLIST_ADDED: | |
2971 | case RMAP_EVENT_CLIST_DELETED: | |
2972 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_CLIST]; | |
2973 | break; | |
2974 | case RMAP_EVENT_ECLIST_ADDED: | |
2975 | case RMAP_EVENT_ECLIST_DELETED: | |
2976 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ECLIST]; | |
2977 | break; | |
2978 | case RMAP_EVENT_ASLIST_ADDED: | |
2979 | case RMAP_EVENT_ASLIST_DELETED: | |
2980 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ASPATH]; | |
2981 | break; | |
2982 | case RMAP_EVENT_LLIST_ADDED: | |
2983 | case RMAP_EVENT_LLIST_DELETED: | |
2984 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_LCLIST]; | |
2985 | break; | |
2986 | case RMAP_EVENT_CALL_ADDED: | |
2987 | case RMAP_EVENT_CALL_DELETED: | |
5ed2e47b | 2988 | case RMAP_EVENT_MATCH_ADDED: |
2989 | case RMAP_EVENT_MATCH_DELETED: | |
d62a17ae | 2990 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_RMAP]; |
2991 | break; | |
2992 | case RMAP_EVENT_FILTER_ADDED: | |
2993 | case RMAP_EVENT_FILTER_DELETED: | |
2994 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_FILTER]; | |
2995 | break; | |
ba1707ca DS |
2996 | /* |
2997 | * Should we actually be ignoring these? | |
2998 | * I am not sure but at this point in time, let | |
2999 | * us get them into this switch and we can peel | |
3000 | * them into the appropriate place in the future | |
3001 | */ | |
3002 | case RMAP_EVENT_SET_ADDED: | |
3003 | case RMAP_EVENT_SET_DELETED: | |
3004 | case RMAP_EVENT_SET_REPLACED: | |
3005 | case RMAP_EVENT_MATCH_REPLACED: | |
3006 | case RMAP_EVENT_INDEX_ADDED: | |
3007 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 3008 | upd8_hash = NULL; |
3009 | break; | |
3010 | } | |
3011 | return (upd8_hash); | |
518f0eb1 DS |
3012 | } |
3013 | ||
e3b78da8 | 3014 | static void route_map_process_dependency(struct hash_bucket *bucket, void *data) |
518f0eb1 | 3015 | { |
e2c8d6ce NT |
3016 | struct route_map_dep_data *dep_data = NULL; |
3017 | char *rmap_name = NULL; | |
3018 | ||
3019 | dep_data = bucket->data; | |
3020 | rmap_name = dep_data->rname; | |
d62a17ae | 3021 | |
5913a17a | 3022 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 | 3023 | zlog_debug("Notifying %s of dependency", rmap_name); |
1fae5ff2 | 3024 | if (route_map_master.event_hook) |
097b5973 | 3025 | (*route_map_master.event_hook)(rmap_name); |
518f0eb1 DS |
3026 | } |
3027 | ||
d62a17ae | 3028 | void route_map_upd8_dependency(route_map_event_t type, const char *arg, |
3029 | const char *rmap_name) | |
518f0eb1 | 3030 | { |
d62a17ae | 3031 | struct hash *upd8_hash = NULL; |
518f0eb1 | 3032 | |
fdf823db | 3033 | if ((upd8_hash = route_map_get_dep_hash(type))) { |
d62a17ae | 3034 | route_map_dep_update(upd8_hash, arg, rmap_name, type); |
fdf823db NT |
3035 | |
3036 | if (type == RMAP_EVENT_CALL_ADDED) { | |
3037 | /* Execute hook. */ | |
3038 | if (route_map_master.add_hook) | |
3039 | (*route_map_master.add_hook)(rmap_name); | |
3040 | } else if (type == RMAP_EVENT_CALL_DELETED) { | |
3041 | /* Execute hook. */ | |
3042 | if (route_map_master.delete_hook) | |
3043 | (*route_map_master.delete_hook)(rmap_name); | |
3044 | } | |
3045 | } | |
518f0eb1 DS |
3046 | } |
3047 | ||
d62a17ae | 3048 | void route_map_notify_dependencies(const char *affected_name, |
3049 | route_map_event_t event) | |
518f0eb1 | 3050 | { |
d62a17ae | 3051 | struct route_map_dep *dep; |
3052 | struct hash *upd8_hash; | |
3053 | char *name; | |
3054 | ||
3055 | if (!affected_name) | |
3056 | return; | |
3057 | ||
3058 | name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, affected_name); | |
3059 | ||
3060 | if ((upd8_hash = route_map_get_dep_hash(event)) == NULL) { | |
3061 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
3062 | return; | |
518f0eb1 | 3063 | } |
d62a17ae | 3064 | |
3065 | dep = (struct route_map_dep *)hash_get(upd8_hash, name, NULL); | |
3066 | if (dep) { | |
3067 | if (!dep->this_hash) | |
3068 | dep->this_hash = upd8_hash; | |
3069 | ||
5913a17a | 3070 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
e3ab8170 | 3071 | zlog_debug("Filter %s updated", dep->dep_name); |
d62a17ae | 3072 | hash_iterate(dep->dep_rmap_hash, route_map_process_dependency, |
3073 | (void *)event); | |
3074 | } | |
3075 | ||
3076 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
518f0eb1 DS |
3077 | } |
3078 | ||
718e3744 | 3079 | /* VTY related functions. */ |
1fa30509 DS |
3080 | static void clear_route_map_helper(struct route_map *map) |
3081 | { | |
3082 | struct route_map_index *index; | |
3083 | ||
3084 | map->applied_clear = map->applied; | |
3085 | for (index = map->head; index; index = index->next) | |
3086 | index->applied_clear = index->applied; | |
3087 | } | |
3088 | ||
3089 | DEFUN (rmap_clear_counters, | |
3090 | rmap_clear_counters_cmd, | |
3091 | "clear route-map counters [WORD]", | |
3092 | CLEAR_STR | |
3093 | "route-map information\n" | |
3094 | "counters associated with the specified route-map\n" | |
3095 | "route-map name\n") | |
3096 | { | |
3097 | int idx_word = 2; | |
3098 | struct route_map *map; | |
3099 | ||
3100 | const char *name = (argc == 3 ) ? argv[idx_word]->arg : NULL; | |
3101 | ||
3102 | if (name) { | |
3103 | map = route_map_lookup_by_name(name); | |
3104 | ||
3105 | if (map) | |
3106 | clear_route_map_helper(map); | |
3107 | else { | |
3108 | vty_out(vty, "%s: 'route-map %s' not found\n", | |
3109 | frr_protonameinst, name); | |
3110 | return CMD_SUCCESS; | |
3111 | } | |
3112 | } else { | |
3113 | for (map = route_map_master.head; map; map = map->next) | |
3114 | clear_route_map_helper(map); | |
3115 | } | |
3116 | ||
3117 | return CMD_SUCCESS; | |
3118 | ||
3119 | } | |
5510e83b | 3120 | |
6d2729e3 | 3121 | DEFUN (rmap_show_name, |
5510e83b | 3122 | rmap_show_name_cmd, |
856ed18a | 3123 | "show route-map [WORD] [json]", |
5510e83b | 3124 | SHOW_STR |
3125 | "route-map information\n" | |
856ed18a RW |
3126 | "route-map name\n" |
3127 | JSON_STR) | |
5510e83b | 3128 | { |
856ed18a RW |
3129 | bool uj = use_json(argc, argv); |
3130 | int idx = 0; | |
3131 | const char *name = NULL; | |
3132 | ||
3133 | if (argv_find(argv, argc, "WORD", &idx)) | |
3134 | name = argv[idx]->arg; | |
3135 | ||
3136 | return vty_show_route_map(vty, name, uj); | |
5510e83b | 3137 | } |
3138 | ||
4a2a09d0 | 3139 | DEFUN (rmap_show_unused, |
3140 | rmap_show_unused_cmd, | |
3141 | "show route-map-unused", | |
3142 | SHOW_STR | |
3143 | "unused route-map information\n") | |
3144 | { | |
3145 | return vty_show_unused_route_map(vty); | |
3146 | } | |
3147 | ||
1c950f37 | 3148 | DEFPY (debug_rmap, |
e3ab8170 | 3149 | debug_rmap_cmd, |
1c950f37 | 3150 | "debug route-map [detail]$detail", |
e3ab8170 | 3151 | DEBUG_STR |
1c950f37 DS |
3152 | "Debug option set for route-maps\n" |
3153 | "Detailed output\n") | |
e3ab8170 | 3154 | { |
1c950f37 DS |
3155 | if (!detail) |
3156 | SET_FLAG(rmap_debug, DEBUG_ROUTEMAP); | |
3157 | else | |
3158 | SET_FLAG(rmap_debug, DEBUG_ROUTEMAP | DEBUG_ROUTEMAP_DETAIL); | |
3159 | ||
e3ab8170 AD |
3160 | return CMD_SUCCESS; |
3161 | } | |
3162 | ||
1c950f37 | 3163 | DEFPY (no_debug_rmap, |
e3ab8170 | 3164 | no_debug_rmap_cmd, |
1c950f37 | 3165 | "no debug route-map [detail]$detail", |
e3ab8170 AD |
3166 | NO_STR |
3167 | DEBUG_STR | |
1c950f37 DS |
3168 | "Debug option set for route-maps\n" |
3169 | "Detailed output\n") | |
e3ab8170 | 3170 | { |
1c950f37 DS |
3171 | if (!detail) |
3172 | UNSET_FLAG(rmap_debug, DEBUG_ROUTEMAP); | |
3173 | else | |
3174 | UNSET_FLAG(rmap_debug, DEBUG_ROUTEMAP | DEBUG_ROUTEMAP_DETAIL); | |
3175 | ||
e3ab8170 AD |
3176 | return CMD_SUCCESS; |
3177 | } | |
3178 | ||
3179 | /* Debug node. */ | |
612c2c15 | 3180 | static int rmap_config_write_debug(struct vty *vty); |
62b346ee | 3181 | static struct cmd_node rmap_debug_node = { |
f4b8291f | 3182 | .name = "route-map debug", |
62b346ee DL |
3183 | .node = RMAP_DEBUG_NODE, |
3184 | .prompt = "", | |
612c2c15 | 3185 | .config_write = rmap_config_write_debug, |
62b346ee | 3186 | }; |
e3ab8170 | 3187 | |
cf00164b DS |
3188 | void route_map_show_debug(struct vty *vty) |
3189 | { | |
5913a17a | 3190 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) |
cf00164b DS |
3191 | vty_out(vty, "debug route-map\n"); |
3192 | } | |
3193 | ||
718e3744 | 3194 | /* Configuration write function. */ |
e3ab8170 AD |
3195 | static int rmap_config_write_debug(struct vty *vty) |
3196 | { | |
3197 | int write = 0; | |
3198 | ||
5913a17a | 3199 | if (CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)) { |
e3ab8170 AD |
3200 | vty_out(vty, "debug route-map\n"); |
3201 | write++; | |
3202 | } | |
3203 | ||
3204 | return write; | |
3205 | } | |
3206 | ||
dc9ffce8 CF |
3207 | /* Common route map rules */ |
3208 | ||
d62a17ae | 3209 | void *route_map_rule_tag_compile(const char *arg) |
dc9ffce8 | 3210 | { |
d62a17ae | 3211 | unsigned long int tmp; |
3212 | char *endptr; | |
3213 | route_tag_t *tag; | |
dc9ffce8 | 3214 | |
d62a17ae | 3215 | errno = 0; |
3216 | tmp = strtoul(arg, &endptr, 0); | |
3217 | if (arg[0] == '\0' || *endptr != '\0' || errno || tmp > ROUTE_TAG_MAX) | |
3218 | return NULL; | |
dc9ffce8 | 3219 | |
d62a17ae | 3220 | tag = XMALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(*tag)); |
3221 | *tag = tmp; | |
dc9ffce8 | 3222 | |
d62a17ae | 3223 | return tag; |
dc9ffce8 CF |
3224 | } |
3225 | ||
d62a17ae | 3226 | void route_map_rule_tag_free(void *rule) |
dc9ffce8 | 3227 | { |
d62a17ae | 3228 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
dc9ffce8 CF |
3229 | } |
3230 | ||
d62a17ae | 3231 | void route_map_finish(void) |
9df78e7c | 3232 | { |
d62a17ae | 3233 | int i; |
88711d8a DL |
3234 | struct route_map_rule_cmd_proxy *proxy; |
3235 | ||
3236 | /* these 2 hash tables have INIT_HASH initializers, so the "default" | |
3237 | * state is "initialized & empty" => fini() followed by init() to | |
3238 | * return to that same state | |
3239 | */ | |
3240 | while ((proxy = rmap_cmd_name_pop(rmap_match_cmds))) | |
3241 | (void)proxy; | |
3242 | rmap_cmd_name_fini(rmap_match_cmds); | |
3243 | rmap_cmd_name_init(rmap_match_cmds); | |
9df78e7c | 3244 | |
88711d8a DL |
3245 | while ((proxy = rmap_cmd_name_pop(rmap_set_cmds))) |
3246 | (void)proxy; | |
3247 | rmap_cmd_name_fini(rmap_set_cmds); | |
3248 | rmap_cmd_name_init(rmap_set_cmds); | |
9df78e7c | 3249 | |
8619629a DS |
3250 | /* |
3251 | * All protocols are setting these to NULL | |
3252 | * by default on shutdown( route_map_finish ) | |
3253 | * Why are we making them do this work? | |
3254 | */ | |
3255 | route_map_master.add_hook = NULL; | |
3256 | route_map_master.delete_hook = NULL; | |
3257 | route_map_master.event_hook = NULL; | |
3258 | ||
d62a17ae | 3259 | /* cleanup route_map */ |
3260 | while (route_map_master.head) { | |
3261 | struct route_map *map = route_map_master.head; | |
e4694d0d | 3262 | map->to_be_processed = false; |
d62a17ae | 3263 | route_map_delete(map); |
3264 | } | |
9df78e7c | 3265 | |
d62a17ae | 3266 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
3267 | hash_free(route_map_dep_hash[i]); | |
3268 | route_map_dep_hash[i] = NULL; | |
3269 | } | |
9df78e7c | 3270 | |
d62a17ae | 3271 | hash_free(route_map_master_hash); |
3272 | route_map_master_hash = NULL; | |
9df78e7c DS |
3273 | } |
3274 | ||
4a2a09d0 | 3275 | /* Increment the use_count counter while attaching the route map */ |
3276 | void route_map_counter_increment(struct route_map *map) | |
3277 | { | |
3278 | if (map) | |
3279 | map->use_count++; | |
3280 | } | |
3281 | ||
3282 | /* Decrement the use_count counter while detaching the route map. */ | |
3283 | void route_map_counter_decrement(struct route_map *map) | |
3284 | { | |
3285 | if (map) { | |
3286 | if (map->use_count <= 0) | |
3287 | return; | |
3288 | map->use_count--; | |
3289 | } | |
3290 | } | |
3291 | ||
2d26f094 | 3292 | DEFUN_HIDDEN(show_route_map_pfx_tbl, show_route_map_pfx_tbl_cmd, |
70dd370f | 3293 | "show route-map RMAP_NAME prefix-table", |
2d26f094 NT |
3294 | SHOW_STR |
3295 | "route-map\n" | |
3296 | "route-map name\n" | |
3297 | "internal prefix-table\n") | |
3298 | { | |
3299 | const char *rmap_name = argv[2]->arg; | |
3300 | struct route_map *rmap = NULL; | |
3301 | struct route_table *rm_pfx_tbl4 = NULL; | |
3302 | struct route_table *rm_pfx_tbl6 = NULL; | |
3303 | struct route_node *rn = NULL, *prn = NULL; | |
3304 | struct list *rmap_index_list = NULL; | |
3305 | struct listnode *ln = NULL, *nln = NULL; | |
3306 | struct route_map_index *index = NULL; | |
2d26f094 NT |
3307 | uint8_t len = 54; |
3308 | ||
3309 | vty_out(vty, "%s:\n", frr_protonameinst); | |
3310 | rmap = route_map_lookup_by_name(rmap_name); | |
3311 | if (rmap) { | |
3312 | rm_pfx_tbl4 = rmap->ipv4_prefix_table; | |
3313 | if (rm_pfx_tbl4) { | |
3314 | vty_out(vty, "\n%s%43s%s\n", "IPv4 Prefix", "", | |
3315 | "Route-map Index List"); | |
3316 | vty_out(vty, "%s%39s%s\n", "_______________", "", | |
3317 | "____________________"); | |
3318 | for (rn = route_top(rm_pfx_tbl4); rn; | |
3319 | rn = route_next(rn)) { | |
b219dda1 | 3320 | vty_out(vty, " %pRN (%d)\n", rn, |
c10e14e9 | 3321 | route_node_get_lock_count(rn)); |
2d26f094 NT |
3322 | |
3323 | vty_out(vty, "(P) "); | |
3324 | prn = rn->parent; | |
3325 | if (prn) { | |
b219dda1 | 3326 | vty_out(vty, "%pRN\n", prn); |
2d26f094 NT |
3327 | } |
3328 | ||
3329 | vty_out(vty, "\n"); | |
3330 | rmap_index_list = (struct list *)rn->info; | |
3331 | if (!rmap_index_list | |
3332 | || !listcount(rmap_index_list)) | |
3333 | vty_out(vty, "%*s%s\n", len, "", "-"); | |
3334 | else | |
3335 | for (ALL_LIST_ELEMENTS(rmap_index_list, | |
3336 | ln, nln, | |
3337 | index)) { | |
3338 | vty_out(vty, "%*s%s seq %d\n", | |
3339 | len, "", | |
3340 | index->map->name, | |
3341 | index->pref); | |
3342 | } | |
3343 | vty_out(vty, "\n"); | |
3344 | } | |
3345 | } | |
3346 | ||
3347 | rm_pfx_tbl6 = rmap->ipv6_prefix_table; | |
3348 | if (rm_pfx_tbl6) { | |
3349 | vty_out(vty, "\n%s%43s%s\n", "IPv6 Prefix", "", | |
3350 | "Route-map Index List"); | |
3351 | vty_out(vty, "%s%39s%s\n", "_______________", "", | |
3352 | "____________________"); | |
3353 | for (rn = route_top(rm_pfx_tbl6); rn; | |
3354 | rn = route_next(rn)) { | |
b219dda1 | 3355 | vty_out(vty, " %pRN (%d)\n", rn, |
c10e14e9 | 3356 | route_node_get_lock_count(rn)); |
2d26f094 NT |
3357 | |
3358 | vty_out(vty, "(P) "); | |
3359 | prn = rn->parent; | |
3360 | if (prn) { | |
b219dda1 | 3361 | vty_out(vty, "%pRN\n", prn); |
2d26f094 NT |
3362 | } |
3363 | ||
3364 | vty_out(vty, "\n"); | |
3365 | rmap_index_list = (struct list *)rn->info; | |
3366 | if (!rmap_index_list | |
3367 | || !listcount(rmap_index_list)) | |
3368 | vty_out(vty, "%*s%s\n", len, "", "-"); | |
3369 | else | |
3370 | for (ALL_LIST_ELEMENTS(rmap_index_list, | |
3371 | ln, nln, | |
3372 | index)) { | |
3373 | vty_out(vty, "%*s%s seq %d\n", | |
3374 | len, "", | |
3375 | index->map->name, | |
3376 | index->pref); | |
3377 | } | |
3378 | vty_out(vty, "\n"); | |
3379 | } | |
3380 | } | |
3381 | } | |
3382 | ||
3383 | vty_out(vty, "\n"); | |
3384 | return CMD_SUCCESS; | |
3385 | } | |
3386 | ||
718e3744 | 3387 | /* Initialization of route map vector. */ |
d62a17ae | 3388 | void route_map_init(void) |
718e3744 | 3389 | { |
d62a17ae | 3390 | int i; |
3391 | ||
d62a17ae | 3392 | route_map_master_hash = |
996c9314 | 3393 | hash_create_size(8, route_map_hash_key_make, route_map_hash_cmp, |
bd74dc61 | 3394 | "Route Map Master Hash"); |
d62a17ae | 3395 | |
3396 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) | |
996c9314 LB |
3397 | route_map_dep_hash[i] = hash_create_size( |
3398 | 8, route_map_dep_hash_make_key, route_map_dep_hash_cmp, | |
3399 | "Route Map Dep Hash"); | |
b2575bc0 | 3400 | |
5913a17a | 3401 | UNSET_FLAG(rmap_debug, DEBUG_ROUTEMAP); |
e3ab8170 | 3402 | |
2b3e4807 | 3403 | route_map_cli_init(); |
518f0eb1 | 3404 | |
2b3e4807 | 3405 | /* Install route map top node. */ |
612c2c15 | 3406 | install_node(&rmap_debug_node); |
e3ab8170 | 3407 | |
d62a17ae | 3408 | /* Install route map commands. */ |
e3ab8170 AD |
3409 | install_element(CONFIG_NODE, &debug_rmap_cmd); |
3410 | install_element(CONFIG_NODE, &no_debug_rmap_cmd); | |
3411 | ||
d62a17ae | 3412 | /* Install show command */ |
1fa30509 DS |
3413 | install_element(ENABLE_NODE, &rmap_clear_counters_cmd); |
3414 | ||
d62a17ae | 3415 | install_element(ENABLE_NODE, &rmap_show_name_cmd); |
4a2a09d0 | 3416 | install_element(ENABLE_NODE, &rmap_show_unused_cmd); |
82f97584 | 3417 | |
e3ab8170 AD |
3418 | install_element(ENABLE_NODE, &debug_rmap_cmd); |
3419 | install_element(ENABLE_NODE, &no_debug_rmap_cmd); | |
49a08bb0 | 3420 | |
2d26f094 | 3421 | install_element(ENABLE_NODE, &show_route_map_pfx_tbl_cmd); |
718e3744 | 3422 | } |