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Commit | Line | Data |
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718e3744 | 1 | /* Route map function. |
896014f4 DL |
2 | * Copyright (C) 1998, 1999 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "linklist.h" | |
24 | #include "memory.h" | |
856ed18a | 25 | #include "command.h" |
718e3744 | 26 | #include "vector.h" |
27 | #include "prefix.h" | |
82f97584 | 28 | #include "vty.h" |
718e3744 | 29 | #include "routemap.h" |
30 | #include "command.h" | |
fee0f4c6 | 31 | #include "log.h" |
518f0eb1 | 32 | #include "hash.h" |
b85120bc | 33 | #include "libfrr.h" |
040c7c3a | 34 | #include "lib_errors.h" |
49a08bb0 | 35 | #include "table.h" |
856ed18a | 36 | #include "json.h" |
88711d8a | 37 | #include "jhash.h" |
6b0655a2 | 38 | |
bf8d3d6a DL |
39 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP, "Route map"); |
40 | DEFINE_MTYPE(LIB, ROUTE_MAP_NAME, "Route map name"); | |
41 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_INDEX, "Route map index"); | |
42 | DEFINE_MTYPE(LIB, ROUTE_MAP_RULE, "Route map rule"); | |
43 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_RULE_STR, "Route map rule str"); | |
44 | DEFINE_MTYPE(LIB, ROUTE_MAP_COMPILED, "Route map compiled"); | |
45 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP, "Route map dependency"); | |
46 | DEFINE_MTYPE_STATIC(LIB, ROUTE_MAP_DEP_DATA, "Route map dependency data"); | |
4a1ab8e4 | 47 | |
96244aca DL |
48 | DEFINE_QOBJ_TYPE(route_map_index); |
49 | DEFINE_QOBJ_TYPE(route_map); | |
e80e7cce | 50 | |
88711d8a DL |
51 | static int rmap_cmd_name_cmp(const struct route_map_rule_cmd_proxy *a, |
52 | const struct route_map_rule_cmd_proxy *b) | |
53 | { | |
54 | return strcmp(a->cmd->str, b->cmd->str); | |
55 | } | |
56 | ||
57 | static uint32_t rmap_cmd_name_hash(const struct route_map_rule_cmd_proxy *item) | |
58 | { | |
59 | return jhash(item->cmd->str, strlen(item->cmd->str), 0xbfd69320); | |
60 | } | |
61 | ||
62 | DECLARE_HASH(rmap_cmd_name, struct route_map_rule_cmd_proxy, itm, | |
63 | rmap_cmd_name_cmp, rmap_cmd_name_hash); | |
64 | ||
65 | static struct rmap_cmd_name_head rmap_match_cmds[1] = { | |
66 | INIT_HASH(rmap_match_cmds[0]), | |
67 | }; | |
68 | static struct rmap_cmd_name_head rmap_set_cmds[1] = { | |
69 | INIT_HASH(rmap_set_cmds[0]), | |
70 | }; | |
71 | ||
49a08bb0 NT |
72 | #define IPv4_PREFIX_LIST "ip address prefix-list" |
73 | #define IPv6_PREFIX_LIST "ipv6 address prefix-list" | |
49a08bb0 | 74 | |
2d26f094 NT |
75 | #define IS_RULE_IPv4_PREFIX_LIST(S) \ |
76 | (strncmp(S, IPv4_PREFIX_LIST, strlen(IPv4_PREFIX_LIST)) == 0) | |
77 | #define IS_RULE_IPv6_PREFIX_LIST(S) \ | |
78 | (strncmp(S, IPv6_PREFIX_LIST, strlen(IPv6_PREFIX_LIST)) == 0) | |
79 | ||
49a08bb0 NT |
80 | struct route_map_pentry_dep { |
81 | struct prefix_list_entry *pentry; | |
82 | const char *plist_name; | |
83 | route_map_event_t event; | |
84 | }; | |
85 | ||
2d26f094 NT |
86 | static void route_map_pfx_tbl_update(route_map_event_t event, |
87 | struct route_map_index *index, afi_t afi, | |
88 | const char *plist_name); | |
89 | static void route_map_pfx_table_add_default(afi_t afi, | |
90 | struct route_map_index *index); | |
91 | static void route_map_pfx_table_del_default(afi_t afi, | |
92 | struct route_map_index *index); | |
93 | static void route_map_add_plist_entries(afi_t afi, | |
94 | struct route_map_index *index, | |
95 | const char *plist_name, | |
96 | struct prefix_list_entry *entry); | |
97 | static void route_map_del_plist_entries(afi_t afi, | |
98 | struct route_map_index *index, | |
99 | const char *plist_name, | |
100 | struct prefix_list_entry *entry); | |
2d26f094 NT |
101 | |
102 | static struct hash *route_map_get_dep_hash(route_map_event_t event); | |
49a08bb0 | 103 | |
a7282663 | 104 | struct route_map_match_set_hooks rmap_match_set_hook; |
82f97584 DW |
105 | |
106 | /* match interface */ | |
d62a17ae | 107 | void route_map_match_interface_hook(int (*func)( |
d5d737a2 SP |
108 | struct route_map_index *index, const char *command, |
109 | const char *arg, route_map_event_t type, | |
110 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 111 | { |
d62a17ae | 112 | rmap_match_set_hook.match_interface = func; |
82f97584 DW |
113 | } |
114 | ||
115 | /* no match interface */ | |
d62a17ae | 116 | void route_map_no_match_interface_hook(int (*func)( |
d5d737a2 SP |
117 | struct route_map_index *index, const char *command, |
118 | const char *arg, route_map_event_t type, | |
119 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 120 | { |
d62a17ae | 121 | rmap_match_set_hook.no_match_interface = func; |
82f97584 DW |
122 | } |
123 | ||
124 | /* match ip address */ | |
d62a17ae | 125 | void route_map_match_ip_address_hook(int (*func)( |
d5d737a2 SP |
126 | struct route_map_index *index, const char *command, |
127 | const char *arg, route_map_event_t type, | |
128 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 129 | { |
d62a17ae | 130 | rmap_match_set_hook.match_ip_address = func; |
82f97584 DW |
131 | } |
132 | ||
133 | /* no match ip address */ | |
d62a17ae | 134 | void route_map_no_match_ip_address_hook(int (*func)( |
d5d737a2 SP |
135 | struct route_map_index *index, const char *command, |
136 | const char *arg, route_map_event_t type, | |
137 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 138 | { |
d62a17ae | 139 | rmap_match_set_hook.no_match_ip_address = func; |
82f97584 DW |
140 | } |
141 | ||
142 | /* match ip address prefix list */ | |
d62a17ae | 143 | void route_map_match_ip_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
144 | struct route_map_index *index, const char *command, |
145 | const char *arg, route_map_event_t type, | |
146 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 147 | { |
d62a17ae | 148 | rmap_match_set_hook.match_ip_address_prefix_list = func; |
82f97584 DW |
149 | } |
150 | ||
151 | /* no match ip address prefix list */ | |
d62a17ae | 152 | void route_map_no_match_ip_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
153 | struct route_map_index *index, const char *command, |
154 | const char *arg, route_map_event_t type, | |
155 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 156 | { |
d62a17ae | 157 | rmap_match_set_hook.no_match_ip_address_prefix_list = func; |
82f97584 DW |
158 | } |
159 | ||
160 | /* match ip next hop */ | |
d62a17ae | 161 | void route_map_match_ip_next_hop_hook(int (*func)( |
d5d737a2 SP |
162 | struct route_map_index *index, const char *command, |
163 | const char *arg, route_map_event_t type, | |
164 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 165 | { |
d62a17ae | 166 | rmap_match_set_hook.match_ip_next_hop = func; |
82f97584 DW |
167 | } |
168 | ||
169 | /* no match ip next hop */ | |
d62a17ae | 170 | void route_map_no_match_ip_next_hop_hook(int (*func)( |
d5d737a2 SP |
171 | struct route_map_index *index, const char *command, |
172 | const char *arg, route_map_event_t type, | |
173 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 174 | { |
d62a17ae | 175 | rmap_match_set_hook.no_match_ip_next_hop = func; |
82f97584 DW |
176 | } |
177 | ||
178 | /* match ip next hop prefix list */ | |
d62a17ae | 179 | void route_map_match_ip_next_hop_prefix_list_hook(int (*func)( |
d5d737a2 SP |
180 | struct route_map_index *index, const char *command, |
181 | const char *arg, route_map_event_t type, | |
182 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 183 | { |
d62a17ae | 184 | rmap_match_set_hook.match_ip_next_hop_prefix_list = func; |
82f97584 DW |
185 | } |
186 | ||
187 | /* no match ip next hop prefix list */ | |
d62a17ae | 188 | void route_map_no_match_ip_next_hop_prefix_list_hook(int (*func)( |
d5d737a2 SP |
189 | struct route_map_index *index, const char *command, |
190 | const char *arg, route_map_event_t type, | |
191 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 192 | { |
d62a17ae | 193 | rmap_match_set_hook.no_match_ip_next_hop_prefix_list = func; |
82f97584 DW |
194 | } |
195 | ||
f554fda7 | 196 | /* match ip next-hop type */ |
61ad901e | 197 | void route_map_match_ip_next_hop_type_hook(int (*func)( |
d5d737a2 SP |
198 | struct route_map_index *index, const char *command, |
199 | const char *arg, route_map_event_t type, | |
200 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
201 | { |
202 | rmap_match_set_hook.match_ip_next_hop_type = func; | |
203 | } | |
204 | ||
f554fda7 | 205 | /* no match ip next-hop type */ |
61ad901e | 206 | void route_map_no_match_ip_next_hop_type_hook(int (*func)( |
d5d737a2 SP |
207 | struct route_map_index *index, const char *command, |
208 | const char *arg, route_map_event_t type, | |
209 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
210 | { |
211 | rmap_match_set_hook.no_match_ip_next_hop_type = func; | |
212 | } | |
213 | ||
82f97584 | 214 | /* match ipv6 address */ |
d62a17ae | 215 | void route_map_match_ipv6_address_hook(int (*func)( |
d5d737a2 SP |
216 | struct route_map_index *index, const char *command, |
217 | const char *arg, route_map_event_t type, | |
218 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 219 | { |
d62a17ae | 220 | rmap_match_set_hook.match_ipv6_address = func; |
82f97584 DW |
221 | } |
222 | ||
223 | /* no match ipv6 address */ | |
d62a17ae | 224 | void route_map_no_match_ipv6_address_hook(int (*func)( |
d5d737a2 SP |
225 | struct route_map_index *index, const char *command, |
226 | const char *arg, route_map_event_t type, | |
227 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 228 | { |
d62a17ae | 229 | rmap_match_set_hook.no_match_ipv6_address = func; |
82f97584 DW |
230 | } |
231 | ||
232 | ||
233 | /* match ipv6 address prefix list */ | |
d62a17ae | 234 | void route_map_match_ipv6_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
235 | struct route_map_index *index, const char *command, |
236 | const char *arg, route_map_event_t type, | |
237 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 238 | { |
d62a17ae | 239 | rmap_match_set_hook.match_ipv6_address_prefix_list = func; |
82f97584 DW |
240 | } |
241 | ||
242 | /* no match ipv6 address prefix list */ | |
d62a17ae | 243 | void route_map_no_match_ipv6_address_prefix_list_hook(int (*func)( |
d5d737a2 SP |
244 | struct route_map_index *index, const char *command, |
245 | const char *arg, route_map_event_t type, | |
246 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 247 | { |
d62a17ae | 248 | rmap_match_set_hook.no_match_ipv6_address_prefix_list = func; |
82f97584 DW |
249 | } |
250 | ||
61ad901e DA |
251 | /* match ipv6 next-hop type */ |
252 | void route_map_match_ipv6_next_hop_type_hook(int (*func)( | |
d5d737a2 SP |
253 | struct route_map_index *index, const char *command, |
254 | const char *arg, route_map_event_t type, | |
255 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
256 | { |
257 | rmap_match_set_hook.match_ipv6_next_hop_type = func; | |
258 | } | |
259 | ||
260 | /* no match ipv6 next-hop type */ | |
261 | void route_map_no_match_ipv6_next_hop_type_hook(int (*func)( | |
d5d737a2 SP |
262 | struct route_map_index *index, const char *command, |
263 | const char *arg, route_map_event_t type, | |
264 | char *errmsg, size_t errmsg_len)) | |
61ad901e DA |
265 | { |
266 | rmap_match_set_hook.no_match_ipv6_next_hop_type = func; | |
267 | } | |
268 | ||
82f97584 | 269 | /* match metric */ |
d62a17ae | 270 | void route_map_match_metric_hook(int (*func)( |
d5d737a2 SP |
271 | struct route_map_index *index, const char *command, |
272 | const char *arg, route_map_event_t type, | |
273 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 274 | { |
d62a17ae | 275 | rmap_match_set_hook.match_metric = func; |
82f97584 DW |
276 | } |
277 | ||
278 | /* no match metric */ | |
d62a17ae | 279 | void route_map_no_match_metric_hook(int (*func)( |
d5d737a2 SP |
280 | struct route_map_index *index, const char *command, |
281 | const char *arg, route_map_event_t type, | |
282 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 283 | { |
d62a17ae | 284 | rmap_match_set_hook.no_match_metric = func; |
82f97584 DW |
285 | } |
286 | ||
287 | /* match tag */ | |
d5d737a2 | 288 | void route_map_match_tag_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 289 | const char *command, const char *arg, |
d5d737a2 SP |
290 | route_map_event_t type, |
291 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 292 | { |
d62a17ae | 293 | rmap_match_set_hook.match_tag = func; |
82f97584 DW |
294 | } |
295 | ||
296 | /* no match tag */ | |
d62a17ae | 297 | void route_map_no_match_tag_hook(int (*func)( |
d5d737a2 SP |
298 | struct route_map_index *index, const char *command, |
299 | const char *arg, route_map_event_t type, | |
300 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 301 | { |
d62a17ae | 302 | rmap_match_set_hook.no_match_tag = func; |
82f97584 DW |
303 | } |
304 | ||
31f937fb | 305 | /* set sr-te color */ |
d5d737a2 | 306 | void route_map_set_srte_color_hook(int (*func)(struct route_map_index *index, |
31f937fb | 307 | const char *command, |
d5d737a2 SP |
308 | const char *arg, |
309 | char *errmsg, size_t errmsg_len)) | |
31f937fb SM |
310 | { |
311 | rmap_match_set_hook.set_srte_color = func; | |
312 | } | |
313 | ||
314 | /* no set sr-te color */ | |
d5d737a2 | 315 | void route_map_no_set_srte_color_hook(int (*func)(struct route_map_index *index, |
31f937fb | 316 | const char *command, |
d5d737a2 SP |
317 | const char *arg, |
318 | char *errmsg, size_t errmsg_len)) | |
31f937fb SM |
319 | { |
320 | rmap_match_set_hook.no_set_srte_color = func; | |
321 | } | |
322 | ||
82f97584 | 323 | /* set ip nexthop */ |
d5d737a2 | 324 | void route_map_set_ip_nexthop_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 325 | const char *command, |
d5d737a2 SP |
326 | const char *arg, |
327 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 328 | { |
d62a17ae | 329 | rmap_match_set_hook.set_ip_nexthop = func; |
82f97584 DW |
330 | } |
331 | ||
332 | /* no set ip nexthop */ | |
d5d737a2 | 333 | void route_map_no_set_ip_nexthop_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 334 | const char *command, |
d5d737a2 SP |
335 | const char *arg, |
336 | char *errmsg, | |
337 | size_t errmsg_len)) | |
82f97584 | 338 | { |
d62a17ae | 339 | rmap_match_set_hook.no_set_ip_nexthop = func; |
82f97584 DW |
340 | } |
341 | ||
342 | /* set ipv6 nexthop local */ | |
d62a17ae | 343 | void route_map_set_ipv6_nexthop_local_hook( |
d5d737a2 SP |
344 | int (*func)(struct route_map_index *index, |
345 | const char *command, const char *arg, | |
346 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 347 | { |
d62a17ae | 348 | rmap_match_set_hook.set_ipv6_nexthop_local = func; |
82f97584 DW |
349 | } |
350 | ||
351 | /* no set ipv6 nexthop local */ | |
d62a17ae | 352 | void route_map_no_set_ipv6_nexthop_local_hook( |
d5d737a2 SP |
353 | int (*func)(struct route_map_index *index, |
354 | const char *command, const char *arg, | |
355 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 356 | { |
d62a17ae | 357 | rmap_match_set_hook.no_set_ipv6_nexthop_local = func; |
82f97584 DW |
358 | } |
359 | ||
360 | /* set metric */ | |
d5d737a2 | 361 | void route_map_set_metric_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 362 | const char *command, |
d5d737a2 SP |
363 | const char *arg, |
364 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 365 | { |
d62a17ae | 366 | rmap_match_set_hook.set_metric = func; |
82f97584 DW |
367 | } |
368 | ||
369 | /* no set metric */ | |
d5d737a2 | 370 | void route_map_no_set_metric_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 371 | const char *command, |
d5d737a2 SP |
372 | const char *arg, |
373 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 374 | { |
d62a17ae | 375 | rmap_match_set_hook.no_set_metric = func; |
82f97584 DW |
376 | } |
377 | ||
378 | /* set tag */ | |
d5d737a2 SP |
379 | void route_map_set_tag_hook(int (*func)(struct route_map_index *index, |
380 | const char *command, const char *arg, | |
381 | char *errmsg, size_t errmsg_len)) | |
82f97584 | 382 | { |
d62a17ae | 383 | rmap_match_set_hook.set_tag = func; |
82f97584 DW |
384 | } |
385 | ||
386 | /* no set tag */ | |
d5d737a2 | 387 | void route_map_no_set_tag_hook(int (*func)(struct route_map_index *index, |
d62a17ae | 388 | const char *command, |
d5d737a2 SP |
389 | const char *arg, |
390 | char *errmsg, size_t errmsg_len)) | |
d62a17ae | 391 | { |
392 | rmap_match_set_hook.no_set_tag = func; | |
82f97584 DW |
393 | } |
394 | ||
d5d737a2 | 395 | int generic_match_add(struct route_map_index *index, |
d62a17ae | 396 | const char *command, const char *arg, |
d5d737a2 SP |
397 | route_map_event_t type, |
398 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 399 | { |
cda7187d | 400 | enum rmap_compile_rets ret; |
d62a17ae | 401 | |
e2c8d6ce | 402 | ret = route_map_add_match(index, command, arg, type); |
9ca25fed | 403 | switch (ret) { |
9ca25fed | 404 | case RMAP_RULE_MISSING: |
d5d737a2 SP |
405 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
406 | frr_protonameinst); | |
9ca25fed | 407 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 408 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
409 | snprintf(errmsg, errmsg_len, |
410 | "%% [%s] Argument form is unsupported or malformed.", | |
411 | frr_protonameinst); | |
9ca25fed | 412 | return CMD_WARNING_CONFIG_FAILED; |
909f3d56 | 413 | case RMAP_COMPILE_SUCCESS: |
cda7187d DS |
414 | /* |
415 | * Nothing to do here move along | |
416 | */ | |
417 | break; | |
d62a17ae | 418 | } |
82f97584 | 419 | |
d62a17ae | 420 | return CMD_SUCCESS; |
421 | } | |
422 | ||
d5d737a2 | 423 | int generic_match_delete(struct route_map_index *index, |
d62a17ae | 424 | const char *command, const char *arg, |
d5d737a2 SP |
425 | route_map_event_t type, |
426 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 427 | { |
cda7187d | 428 | enum rmap_compile_rets ret; |
9ca25fed | 429 | int retval = CMD_SUCCESS; |
d62a17ae | 430 | char *dep_name = NULL; |
431 | const char *tmpstr; | |
432 | char *rmap_name = NULL; | |
433 | ||
434 | if (type != RMAP_EVENT_MATCH_DELETED) { | |
435 | /* ignore the mundane, the types without any dependency */ | |
436 | if (arg == NULL) { | |
437 | if ((tmpstr = route_map_get_match_arg(index, command)) | |
438 | != NULL) | |
439 | dep_name = | |
440 | XSTRDUP(MTYPE_ROUTE_MAP_RULE, tmpstr); | |
441 | } else { | |
442 | dep_name = XSTRDUP(MTYPE_ROUTE_MAP_RULE, arg); | |
443 | } | |
444 | rmap_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, index->map->name); | |
445 | } | |
446 | ||
909f3d56 | 447 | ret = route_map_delete_match(index, command, dep_name, type); |
9ca25fed DS |
448 | switch (ret) { |
449 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
450 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
451 | frr_protonameinst); | |
9ca25fed DS |
452 | retval = CMD_WARNING_CONFIG_FAILED; |
453 | break; | |
454 | case RMAP_COMPILE_ERROR: | |
d5d737a2 SP |
455 | snprintf(errmsg, errmsg_len, |
456 | "%% [%s] Argument form is unsupported or malformed.", | |
457 | frr_protonameinst); | |
9ca25fed DS |
458 | retval = CMD_WARNING_CONFIG_FAILED; |
459 | break; | |
460 | case RMAP_COMPILE_SUCCESS: | |
cda7187d DS |
461 | /* |
462 | * Nothing to do here | |
463 | */ | |
464 | break; | |
d62a17ae | 465 | } |
466 | ||
0a22ddfb QY |
467 | XFREE(MTYPE_ROUTE_MAP_RULE, dep_name); |
468 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
d62a17ae | 469 | |
9ca25fed | 470 | return retval; |
d62a17ae | 471 | } |
472 | ||
d5d737a2 SP |
473 | int generic_set_add(struct route_map_index *index, |
474 | const char *command, const char *arg, | |
475 | char *errmsg, size_t errmsg_len) | |
718e3744 | 476 | { |
cda7187d | 477 | enum rmap_compile_rets ret; |
d62a17ae | 478 | |
479 | ret = route_map_add_set(index, command, arg); | |
9ca25fed DS |
480 | switch (ret) { |
481 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
482 | snprintf(errmsg, errmsg_len, |
483 | "%% [%s] Can't find rule.", frr_protonameinst); | |
9ca25fed | 484 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 485 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
486 | snprintf(errmsg, errmsg_len, |
487 | "%% [%s] Argument form is unsupported or malformed.", | |
488 | frr_protonameinst); | |
9ca25fed | 489 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
490 | case RMAP_COMPILE_SUCCESS: |
491 | break; | |
d62a17ae | 492 | } |
9ca25fed | 493 | |
d62a17ae | 494 | return CMD_SUCCESS; |
495 | } | |
496 | ||
d5d737a2 SP |
497 | int generic_set_delete(struct route_map_index *index, |
498 | const char *command, const char *arg, | |
499 | char *errmsg, size_t errmsg_len) | |
d62a17ae | 500 | { |
cda7187d | 501 | enum rmap_compile_rets ret; |
d62a17ae | 502 | |
503 | ret = route_map_delete_set(index, command, arg); | |
9ca25fed DS |
504 | switch (ret) { |
505 | case RMAP_RULE_MISSING: | |
d5d737a2 SP |
506 | snprintf(errmsg, errmsg_len, "%% [%s] Can't find rule.", |
507 | frr_protonameinst); | |
9ca25fed | 508 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed | 509 | case RMAP_COMPILE_ERROR: |
d5d737a2 SP |
510 | snprintf(errmsg, errmsg_len, |
511 | "%% [%s] Argument form is unsupported or malformed.", | |
512 | frr_protonameinst); | |
9ca25fed | 513 | return CMD_WARNING_CONFIG_FAILED; |
9ca25fed DS |
514 | case RMAP_COMPILE_SUCCESS: |
515 | break; | |
d62a17ae | 516 | } |
9ca25fed | 517 | |
d62a17ae | 518 | return CMD_SUCCESS; |
519 | } | |
520 | ||
521 | ||
718e3744 | 522 | /* Master list of route map. */ |
a7282663 RZ |
523 | struct route_map_list route_map_master = {NULL, NULL, NULL, NULL, NULL}; |
524 | struct hash *route_map_master_hash = NULL; | |
a6e0d253 | 525 | |
d8b87afe | 526 | static unsigned int route_map_hash_key_make(const void *p) |
a6e0d253 | 527 | { |
d62a17ae | 528 | const struct route_map *map = p; |
529 | return string_hash_make(map->name); | |
a6e0d253 DW |
530 | } |
531 | ||
74df8d6d | 532 | static bool route_map_hash_cmp(const void *p1, const void *p2) |
a6e0d253 | 533 | { |
d62a17ae | 534 | const struct route_map *map1 = p1; |
535 | const struct route_map *map2 = p2; | |
a6e0d253 | 536 | |
d62a17ae | 537 | if (map1->deleted == map2->deleted) { |
538 | if (map1->name && map2->name) { | |
539 | if (!strcmp(map1->name, map2->name)) { | |
74df8d6d | 540 | return true; |
d62a17ae | 541 | } |
542 | } else if (!map1->name && !map2->name) { | |
74df8d6d | 543 | return true; |
d62a17ae | 544 | } |
545 | } | |
a6e0d253 | 546 | |
74df8d6d | 547 | return false; |
a6e0d253 | 548 | } |
518f0eb1 | 549 | |
d62a17ae | 550 | enum route_map_upd8_type { |
551 | ROUTE_MAP_ADD = 1, | |
552 | ROUTE_MAP_DEL, | |
553 | }; | |
518f0eb1 DS |
554 | |
555 | /* all possible route-map dependency types */ | |
d62a17ae | 556 | enum route_map_dep_type { |
557 | ROUTE_MAP_DEP_RMAP = 1, | |
558 | ROUTE_MAP_DEP_CLIST, | |
559 | ROUTE_MAP_DEP_ECLIST, | |
560 | ROUTE_MAP_DEP_LCLIST, | |
561 | ROUTE_MAP_DEP_PLIST, | |
562 | ROUTE_MAP_DEP_ASPATH, | |
563 | ROUTE_MAP_DEP_FILTER, | |
564 | ROUTE_MAP_DEP_MAX, | |
565 | }; | |
566 | ||
567 | struct route_map_dep { | |
568 | char *dep_name; | |
569 | struct hash *dep_rmap_hash; | |
570 | struct hash *this_hash; /* ptr to the hash structure this is part of */ | |
518f0eb1 | 571 | }; |
718e3744 | 572 | |
e2c8d6ce NT |
573 | struct route_map_dep_data { |
574 | /* Route-map name. | |
575 | */ | |
576 | char *rname; | |
577 | /* Count of number of sequences of this | |
578 | * route-map that depend on the same entity. | |
579 | */ | |
580 | uint16_t refcnt; | |
581 | }; | |
582 | ||
518f0eb1 | 583 | /* Hashes maintaining dependency between various sublists used by route maps */ |
1b3e9a21 | 584 | static struct hash *route_map_dep_hash[ROUTE_MAP_DEP_MAX]; |
518f0eb1 | 585 | |
d8b87afe | 586 | static unsigned int route_map_dep_hash_make_key(const void *p); |
d62a17ae | 587 | static void route_map_clear_all_references(char *rmap_name); |
588 | static void route_map_rule_delete(struct route_map_rule_list *, | |
589 | struct route_map_rule *); | |
e3ab8170 | 590 | static bool rmap_debug; |
718e3744 | 591 | |
718e3744 | 592 | /* New route map allocation. Please note route map's name must be |
593 | specified. */ | |
d62a17ae | 594 | static struct route_map *route_map_new(const char *name) |
718e3744 | 595 | { |
d62a17ae | 596 | struct route_map *new; |
718e3744 | 597 | |
d62a17ae | 598 | new = XCALLOC(MTYPE_ROUTE_MAP, sizeof(struct route_map)); |
599 | new->name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
600 | QOBJ_REG(new, route_map); | |
601 | return new; | |
718e3744 | 602 | } |
603 | ||
604 | /* Add new name to route_map. */ | |
d62a17ae | 605 | static struct route_map *route_map_add(const char *name) |
606 | { | |
607 | struct route_map *map; | |
608 | struct route_map_list *list; | |
609 | ||
610 | map = route_map_new(name); | |
611 | list = &route_map_master; | |
612 | ||
613 | /* Add map to the hash */ | |
614 | hash_get(route_map_master_hash, map, hash_alloc_intern); | |
615 | ||
616 | /* Add new entry to the head of the list to match how it is added in the | |
617 | * hash table. This is to ensure that if the same route-map has been | |
618 | * created more than once and then marked for deletion (which can happen | |
619 | * if prior deletions haven't completed as BGP hasn't yet done the | |
620 | * route-map processing), the order of the entities is the same in both | |
621 | * the list and the hash table. Otherwise, since there is nothing to | |
622 | * distinguish between the two entries, the wrong entry could get freed. | |
623 | * TODO: This needs to be re-examined to handle it better - e.g., revive | |
624 | * a deleted entry if the route-map is created again. | |
625 | */ | |
626 | map->prev = NULL; | |
627 | map->next = list->head; | |
628 | if (list->head) | |
629 | list->head->prev = map; | |
630 | list->head = map; | |
631 | if (!list->tail) | |
632 | list->tail = map; | |
633 | ||
634 | /* Execute hook. */ | |
635 | if (route_map_master.add_hook) { | |
636 | (*route_map_master.add_hook)(name); | |
637 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_ADDED); | |
638 | } | |
e3ab8170 | 639 | |
49a08bb0 NT |
640 | if (!map->ipv4_prefix_table) |
641 | map->ipv4_prefix_table = route_table_init(); | |
642 | ||
643 | if (!map->ipv6_prefix_table) | |
644 | map->ipv6_prefix_table = route_table_init(); | |
645 | ||
e3ab8170 AD |
646 | if (rmap_debug) |
647 | zlog_debug("Add route-map %s", name); | |
d62a17ae | 648 | return map; |
718e3744 | 649 | } |
650 | ||
518f0eb1 DS |
651 | /* this is supposed to be called post processing by |
652 | * the delete hook function. Don't invoke delete_hook | |
653 | * again in this routine. | |
654 | */ | |
d62a17ae | 655 | static void route_map_free_map(struct route_map *map) |
718e3744 | 656 | { |
d62a17ae | 657 | struct route_map_list *list; |
658 | struct route_map_index *index; | |
518f0eb1 | 659 | |
d62a17ae | 660 | if (map == NULL) |
661 | return; | |
a31ff449 | 662 | |
d62a17ae | 663 | while ((index = map->head) != NULL) |
664 | route_map_index_delete(index, 0); | |
718e3744 | 665 | |
e3ab8170 AD |
666 | if (rmap_debug) |
667 | zlog_debug("Deleting route-map %s", map->name); | |
668 | ||
d62a17ae | 669 | list = &route_map_master; |
718e3744 | 670 | |
d62a17ae | 671 | QOBJ_UNREG(map); |
e80e7cce | 672 | |
d62a17ae | 673 | if (map->next) |
674 | map->next->prev = map->prev; | |
675 | else | |
676 | list->tail = map->prev; | |
718e3744 | 677 | |
d62a17ae | 678 | if (map->prev) |
679 | map->prev->next = map->next; | |
680 | else | |
681 | list->head = map->next; | |
718e3744 | 682 | |
d62a17ae | 683 | hash_release(route_map_master_hash, map); |
684 | XFREE(MTYPE_ROUTE_MAP_NAME, map->name); | |
685 | XFREE(MTYPE_ROUTE_MAP, map); | |
518f0eb1 | 686 | } |
718e3744 | 687 | |
518f0eb1 | 688 | /* Route map delete from list. */ |
a7282663 | 689 | void route_map_delete(struct route_map *map) |
518f0eb1 | 690 | { |
d62a17ae | 691 | struct route_map_index *index; |
692 | char *name; | |
518f0eb1 | 693 | |
d62a17ae | 694 | while ((index = map->head) != NULL) |
695 | route_map_index_delete(index, 0); | |
518f0eb1 | 696 | |
d62a17ae | 697 | name = map->name; |
698 | map->head = NULL; | |
518f0eb1 | 699 | |
d62a17ae | 700 | /* Clear all dependencies */ |
701 | route_map_clear_all_references(name); | |
e4694d0d | 702 | map->deleted = true; |
d62a17ae | 703 | /* Execute deletion hook. */ |
704 | if (route_map_master.delete_hook) { | |
705 | (*route_map_master.delete_hook)(name); | |
706 | route_map_notify_dependencies(name, RMAP_EVENT_CALL_DELETED); | |
707 | } | |
718e3744 | 708 | |
d62a17ae | 709 | if (!map->to_be_processed) { |
710 | route_map_free_map(map); | |
711 | } | |
718e3744 | 712 | } |
713 | ||
714 | /* Lookup route map by route map name string. */ | |
d62a17ae | 715 | struct route_map *route_map_lookup_by_name(const char *name) |
718e3744 | 716 | { |
d62a17ae | 717 | struct route_map *map; |
718 | struct route_map tmp_map; | |
718e3744 | 719 | |
d62a17ae | 720 | if (!name) |
721 | return NULL; | |
518f0eb1 | 722 | |
d62a17ae | 723 | // map.deleted is 0 via memset |
724 | memset(&tmp_map, 0, sizeof(struct route_map)); | |
725 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
726 | map = hash_lookup(route_map_master_hash, &tmp_map); | |
727 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
728 | return map; | |
718e3744 | 729 | } |
730 | ||
1de27621 DA |
731 | /* Simple helper to warn if route-map does not exist. */ |
732 | struct route_map *route_map_lookup_warn_noexist(struct vty *vty, const char *name) | |
733 | { | |
734 | struct route_map *route_map = route_map_lookup_by_name(name); | |
735 | ||
736 | if (!route_map) | |
737 | if (vty_shell_serv(vty)) | |
738 | vty_out(vty, "The route-map '%s' does not exist.\n", name); | |
739 | ||
740 | return route_map; | |
741 | } | |
742 | ||
7096e938 | 743 | int route_map_mark_updated(const char *name) |
518f0eb1 | 744 | { |
d62a17ae | 745 | struct route_map *map; |
746 | int ret = -1; | |
747 | struct route_map tmp_map; | |
518f0eb1 | 748 | |
d62a17ae | 749 | if (!name) |
750 | return (ret); | |
a6e0d253 | 751 | |
d62a17ae | 752 | map = route_map_lookup_by_name(name); |
a6e0d253 | 753 | |
e4694d0d DS |
754 | /* If we did not find the routemap with deleted=false try again |
755 | * with deleted=true | |
d62a17ae | 756 | */ |
757 | if (!map) { | |
758 | memset(&tmp_map, 0, sizeof(struct route_map)); | |
759 | tmp_map.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
e4694d0d | 760 | tmp_map.deleted = true; |
d62a17ae | 761 | map = hash_lookup(route_map_master_hash, &tmp_map); |
762 | XFREE(MTYPE_ROUTE_MAP_NAME, tmp_map.name); | |
763 | } | |
a6e0d253 | 764 | |
d62a17ae | 765 | if (map) { |
e4694d0d | 766 | map->to_be_processed = true; |
d62a17ae | 767 | ret = 0; |
768 | } | |
518f0eb1 | 769 | |
d62a17ae | 770 | return (ret); |
518f0eb1 DS |
771 | } |
772 | ||
69f02720 | 773 | static int route_map_clear_updated(struct route_map *map) |
518f0eb1 | 774 | { |
d62a17ae | 775 | int ret = -1; |
518f0eb1 | 776 | |
d62a17ae | 777 | if (map) { |
e4694d0d | 778 | map->to_be_processed = false; |
d62a17ae | 779 | if (map->deleted) |
780 | route_map_free_map(map); | |
781 | } | |
518f0eb1 | 782 | |
d62a17ae | 783 | return (ret); |
518f0eb1 DS |
784 | } |
785 | ||
718e3744 | 786 | /* Lookup route map. If there isn't route map create one and return |
787 | it. */ | |
a7282663 | 788 | struct route_map *route_map_get(const char *name) |
718e3744 | 789 | { |
d62a17ae | 790 | struct route_map *map; |
718e3744 | 791 | |
d62a17ae | 792 | map = route_map_lookup_by_name(name); |
793 | if (map == NULL) | |
794 | map = route_map_add(name); | |
518f0eb1 | 795 | |
d62a17ae | 796 | return map; |
718e3744 | 797 | } |
798 | ||
46a69f10 | 799 | void route_map_walk_update_list(void (*route_map_update_fn)(char *name)) |
518f0eb1 | 800 | { |
d62a17ae | 801 | struct route_map *node; |
802 | struct route_map *nnode = NULL; | |
518f0eb1 | 803 | |
d62a17ae | 804 | for (node = route_map_master.head; node; node = nnode) { |
805 | if (node->to_be_processed) { | |
806 | /* DD: Should we add any thread yield code here */ | |
807 | route_map_update_fn(node->name); | |
808 | nnode = node->next; | |
809 | route_map_clear_updated(node); | |
810 | } else | |
811 | nnode = node->next; | |
518f0eb1 | 812 | } |
518f0eb1 DS |
813 | } |
814 | ||
718e3744 | 815 | /* Return route map's type string. */ |
d62a17ae | 816 | static const char *route_map_type_str(enum route_map_type type) |
817 | { | |
818 | switch (type) { | |
819 | case RMAP_PERMIT: | |
820 | return "permit"; | |
d62a17ae | 821 | case RMAP_DENY: |
822 | return "deny"; | |
ba1707ca | 823 | case RMAP_ANY: |
d62a17ae | 824 | return ""; |
d62a17ae | 825 | } |
4255dbe9 DS |
826 | |
827 | return ""; | |
718e3744 | 828 | } |
829 | ||
b68885f9 | 830 | static const char *route_map_cmd_result_str(enum route_map_cmd_result_t res) |
e3ab8170 AD |
831 | { |
832 | switch (res) { | |
833 | case RMAP_MATCH: | |
834 | return "match"; | |
e3ab8170 AD |
835 | case RMAP_NOMATCH: |
836 | return "no match"; | |
b68885f9 LK |
837 | case RMAP_NOOP: |
838 | return "noop"; | |
e3ab8170 AD |
839 | case RMAP_ERROR: |
840 | return "error"; | |
841 | case RMAP_OKAY: | |
842 | return "okay"; | |
843 | } | |
844 | ||
845 | return "invalid"; | |
846 | } | |
847 | ||
b68885f9 LK |
848 | static const char *route_map_result_str(route_map_result_t res) |
849 | { | |
850 | switch (res) { | |
851 | case RMAP_DENYMATCH: | |
852 | return "deny"; | |
853 | case RMAP_PERMITMATCH: | |
854 | return "permit"; | |
855 | } | |
856 | ||
857 | return "invalid"; | |
858 | } | |
859 | ||
5510e83b | 860 | /* show route-map */ |
856ed18a RW |
861 | static void vty_show_route_map_entry(struct vty *vty, struct route_map *map, |
862 | json_object *json) | |
d62a17ae | 863 | { |
864 | struct route_map_index *index; | |
865 | struct route_map_rule *rule; | |
856ed18a RW |
866 | json_object *json_rmap = NULL; |
867 | json_object *json_rules = NULL; | |
868 | ||
869 | if (json) { | |
870 | json_rmap = json_object_new_object(); | |
871 | json_object_object_add(json, map->name, json_rmap); | |
872 | ||
873 | json_rules = json_object_new_array(); | |
874 | json_object_int_add(json_rmap, "invoked", | |
875 | map->applied - map->applied_clear); | |
876 | json_object_boolean_add(json_rmap, "disabledOptimization", | |
877 | map->optimization_disabled); | |
878 | json_object_boolean_add(json_rmap, "processedChange", | |
879 | map->to_be_processed); | |
880 | json_object_object_add(json_rmap, "rules", json_rules); | |
881 | } else { | |
882 | vty_out(vty, | |
883 | "route-map: %s Invoked: %" PRIu64 | |
884 | " Optimization: %s Processed Change: %s\n", | |
885 | map->name, map->applied - map->applied_clear, | |
886 | map->optimization_disabled ? "disabled" : "enabled", | |
887 | map->to_be_processed ? "true" : "false"); | |
888 | } | |
d62a17ae | 889 | |
890 | for (index = map->head; index; index = index->next) { | |
856ed18a RW |
891 | if (json) { |
892 | json_object *json_rule; | |
893 | json_object *json_matches; | |
894 | json_object *json_sets; | |
895 | char action[BUFSIZ] = {}; | |
896 | ||
897 | json_rule = json_object_new_object(); | |
898 | json_object_array_add(json_rules, json_rule); | |
899 | ||
900 | json_object_int_add(json_rule, "sequenceNumber", | |
901 | index->pref); | |
902 | json_object_string_add(json_rule, "type", | |
903 | route_map_type_str(index->type)); | |
904 | json_object_int_add(json_rule, "invoked", | |
905 | index->applied | |
906 | - index->applied_clear); | |
907 | ||
908 | /* Description */ | |
909 | if (index->description) | |
910 | json_object_string_add(json_rule, "description", | |
911 | index->description); | |
912 | ||
913 | /* Match clauses */ | |
914 | json_matches = json_object_new_array(); | |
915 | json_object_object_add(json_rule, "matchClauses", | |
916 | json_matches); | |
917 | for (rule = index->match_list.head; rule; | |
918 | rule = rule->next) { | |
919 | char buf[BUFSIZ]; | |
920 | ||
921 | snprintf(buf, sizeof(buf), "%s %s", | |
922 | rule->cmd->str, rule->rule_str); | |
923 | json_array_string_add(json_matches, buf); | |
924 | } | |
925 | ||
926 | /* Set clauses */ | |
927 | json_sets = json_object_new_array(); | |
928 | json_object_object_add(json_rule, "setClauses", | |
929 | json_sets); | |
930 | for (rule = index->set_list.head; rule; | |
931 | rule = rule->next) { | |
932 | char buf[BUFSIZ]; | |
933 | ||
934 | snprintf(buf, sizeof(buf), "%s %s", | |
935 | rule->cmd->str, rule->rule_str); | |
936 | json_array_string_add(json_sets, buf); | |
937 | } | |
938 | ||
939 | /* Call clause */ | |
940 | if (index->nextrm) | |
941 | json_object_string_add(json_rule, "callClause", | |
942 | index->nextrm); | |
943 | ||
944 | /* Exit Policy */ | |
945 | if (index->exitpolicy == RMAP_GOTO) | |
946 | snprintf(action, sizeof(action), "Goto %d", | |
947 | index->nextpref); | |
948 | else if (index->exitpolicy == RMAP_NEXT) | |
949 | snprintf(action, sizeof(action), | |
950 | "Continue to next entry"); | |
951 | else if (index->exitpolicy == RMAP_EXIT) | |
952 | snprintf(action, sizeof(action), | |
953 | "Exit routemap"); | |
954 | if (action[0] != '\0') | |
955 | json_object_string_add(json_rule, "action", | |
956 | action); | |
957 | } else { | |
958 | vty_out(vty, " %s, sequence %d Invoked %" PRIu64 "\n", | |
959 | route_map_type_str(index->type), index->pref, | |
960 | index->applied - index->applied_clear); | |
961 | ||
962 | /* Description */ | |
963 | if (index->description) | |
964 | vty_out(vty, " Description:\n %s\n", | |
965 | index->description); | |
966 | ||
967 | /* Match clauses */ | |
968 | vty_out(vty, " Match clauses:\n"); | |
969 | for (rule = index->match_list.head; rule; | |
970 | rule = rule->next) | |
971 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
972 | rule->rule_str); | |
973 | ||
974 | /* Set clauses */ | |
975 | vty_out(vty, " Set clauses:\n"); | |
976 | for (rule = index->set_list.head; rule; | |
977 | rule = rule->next) | |
978 | vty_out(vty, " %s %s\n", rule->cmd->str, | |
979 | rule->rule_str); | |
980 | ||
981 | /* Call clause */ | |
982 | vty_out(vty, " Call clause:\n"); | |
983 | if (index->nextrm) | |
984 | vty_out(vty, " Call %s\n", index->nextrm); | |
985 | ||
986 | /* Exit Policy */ | |
987 | vty_out(vty, " Action:\n"); | |
988 | if (index->exitpolicy == RMAP_GOTO) | |
989 | vty_out(vty, " Goto %d\n", index->nextpref); | |
990 | else if (index->exitpolicy == RMAP_NEXT) | |
991 | vty_out(vty, " Continue to next entry\n"); | |
992 | else if (index->exitpolicy == RMAP_EXIT) | |
993 | vty_out(vty, " Exit routemap\n"); | |
994 | } | |
d62a17ae | 995 | } |
996 | } | |
997 | ||
78b1bb5f QY |
998 | static int sort_route_map(const void **map1, const void **map2) |
999 | { | |
1000 | const struct route_map *m1 = *map1; | |
1001 | const struct route_map *m2 = *map2; | |
1002 | ||
1003 | return strcmp(m1->name, m2->name); | |
1004 | } | |
1005 | ||
856ed18a | 1006 | static int vty_show_route_map(struct vty *vty, const char *name, bool use_json) |
d62a17ae | 1007 | { |
1008 | struct route_map *map; | |
856ed18a RW |
1009 | json_object *json = NULL; |
1010 | json_object *json_proto = NULL; | |
d62a17ae | 1011 | |
856ed18a RW |
1012 | if (use_json) { |
1013 | json = json_object_new_object(); | |
1014 | json_proto = json_object_new_object(); | |
1015 | json_object_object_add(json, frr_protonameinst, json_proto); | |
1016 | } else | |
1017 | vty_out(vty, "%s:\n", frr_protonameinst); | |
279b0607 | 1018 | |
d62a17ae | 1019 | if (name) { |
1020 | map = route_map_lookup_by_name(name); | |
1021 | ||
1022 | if (map) { | |
856ed18a | 1023 | vty_show_route_map_entry(vty, map, json_proto); |
d62a17ae | 1024 | return CMD_SUCCESS; |
856ed18a | 1025 | } else if (!use_json) { |
d62a17ae | 1026 | vty_out(vty, "%s: 'route-map %s' not found\n", |
1027 | frr_protonameinst, name); | |
d62a17ae | 1028 | } |
1029 | } else { | |
78b1bb5f QY |
1030 | |
1031 | struct list *maplist = list_new(); | |
1032 | struct listnode *ln; | |
1033 | ||
d62a17ae | 1034 | for (map = route_map_master.head; map; map = map->next) |
78b1bb5f QY |
1035 | listnode_add(maplist, map); |
1036 | ||
1037 | list_sort(maplist, sort_route_map); | |
1038 | ||
1039 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
856ed18a | 1040 | vty_show_route_map_entry(vty, map, json_proto); |
78b1bb5f | 1041 | |
6a154c88 | 1042 | list_delete(&maplist); |
d62a17ae | 1043 | } |
856ed18a | 1044 | |
ad9df66c | 1045 | return vty_json(vty, json); |
5510e83b | 1046 | } |
1047 | ||
4a2a09d0 | 1048 | /* Unused route map details */ |
1049 | static int vty_show_unused_route_map(struct vty *vty) | |
1050 | { | |
1051 | struct list *maplist = list_new(); | |
1052 | struct listnode *ln; | |
1053 | struct route_map *map; | |
1054 | ||
1055 | for (map = route_map_master.head; map; map = map->next) { | |
1056 | /* If use_count is zero, No protocol is using this routemap. | |
1057 | * so adding to the list. | |
1058 | */ | |
1059 | if (!map->use_count) | |
1060 | listnode_add(maplist, map); | |
1061 | } | |
1062 | ||
1063 | if (maplist->count > 0) { | |
1064 | vty_out(vty, "\n%s:\n", frr_protonameinst); | |
1065 | list_sort(maplist, sort_route_map); | |
1066 | ||
1067 | for (ALL_LIST_ELEMENTS_RO(maplist, ln, map)) | |
856ed18a | 1068 | vty_show_route_map_entry(vty, map, NULL); |
4a2a09d0 | 1069 | } else { |
1070 | vty_out(vty, "\n%s: None\n", frr_protonameinst); | |
1071 | } | |
1072 | ||
1073 | list_delete(&maplist); | |
1074 | return CMD_SUCCESS; | |
1075 | } | |
5510e83b | 1076 | |
718e3744 | 1077 | /* New route map allocation. Please note route map's name must be |
1078 | specified. */ | |
d62a17ae | 1079 | static struct route_map_index *route_map_index_new(void) |
718e3744 | 1080 | { |
d62a17ae | 1081 | struct route_map_index *new; |
718e3744 | 1082 | |
d62a17ae | 1083 | new = XCALLOC(MTYPE_ROUTE_MAP_INDEX, sizeof(struct route_map_index)); |
1084 | new->exitpolicy = RMAP_EXIT; /* Default to Cisco-style */ | |
54a35ff4 | 1085 | TAILQ_INIT(&new->rhclist); |
d62a17ae | 1086 | QOBJ_REG(new, route_map_index); |
1087 | return new; | |
718e3744 | 1088 | } |
1089 | ||
1090 | /* Free route map index. */ | |
a7282663 | 1091 | void route_map_index_delete(struct route_map_index *index, int notify) |
718e3744 | 1092 | { |
1c4eca64 | 1093 | struct routemap_hook_context *rhc; |
d62a17ae | 1094 | struct route_map_rule *rule; |
718e3744 | 1095 | |
d62a17ae | 1096 | QOBJ_UNREG(index); |
e80e7cce | 1097 | |
e3ab8170 AD |
1098 | if (rmap_debug) |
1099 | zlog_debug("Deleting route-map %s sequence %d", | |
1100 | index->map->name, index->pref); | |
1101 | ||
f0951335 RZ |
1102 | /* Free route map entry description. */ |
1103 | XFREE(MTYPE_TMP, index->description); | |
1104 | ||
54a35ff4 | 1105 | /* Free route map northbound hook contexts. */ |
1c4eca64 RZ |
1106 | while ((rhc = TAILQ_FIRST(&index->rhclist)) != NULL) |
1107 | routemap_hook_context_free(rhc); | |
54a35ff4 | 1108 | |
d62a17ae | 1109 | /* Free route match. */ |
49a08bb0 | 1110 | while ((rule = index->match_list.head) != NULL) { |
819a23f9 | 1111 | if (IS_RULE_IPv4_PREFIX_LIST(rule->cmd->str)) |
2d26f094 NT |
1112 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_DELETED, |
1113 | index, AFI_IP, rule->rule_str); | |
819a23f9 | 1114 | else if (IS_RULE_IPv6_PREFIX_LIST(rule->cmd->str)) |
2d26f094 NT |
1115 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_DELETED, |
1116 | index, AFI_IP6, | |
1117 | rule->rule_str); | |
49a08bb0 | 1118 | |
d62a17ae | 1119 | route_map_rule_delete(&index->match_list, rule); |
49a08bb0 | 1120 | } |
718e3744 | 1121 | |
d62a17ae | 1122 | /* Free route set. */ |
1123 | while ((rule = index->set_list.head) != NULL) | |
1124 | route_map_rule_delete(&index->set_list, rule); | |
718e3744 | 1125 | |
d62a17ae | 1126 | /* Remove index from route map list. */ |
1127 | if (index->next) | |
1128 | index->next->prev = index->prev; | |
1129 | else | |
1130 | index->map->tail = index->prev; | |
718e3744 | 1131 | |
d62a17ae | 1132 | if (index->prev) |
1133 | index->prev->next = index->next; | |
1134 | else | |
1135 | index->map->head = index->next; | |
718e3744 | 1136 | |
d62a17ae | 1137 | /* Free 'char *nextrm' if not NULL */ |
0a22ddfb | 1138 | XFREE(MTYPE_ROUTE_MAP_NAME, index->nextrm); |
fee0f4c6 | 1139 | |
2d26f094 | 1140 | route_map_pfx_tbl_update(RMAP_EVENT_INDEX_DELETED, index, 0, NULL); |
49a08bb0 | 1141 | |
d62a17ae | 1142 | /* Execute event hook. */ |
1143 | if (route_map_master.event_hook && notify) { | |
097b5973 | 1144 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1145 | route_map_notify_dependencies(index->map->name, |
1146 | RMAP_EVENT_CALL_ADDED); | |
1147 | } | |
1148 | XFREE(MTYPE_ROUTE_MAP_INDEX, index); | |
718e3744 | 1149 | } |
1150 | ||
1151 | /* Lookup index from route map. */ | |
d62a17ae | 1152 | static struct route_map_index *route_map_index_lookup(struct route_map *map, |
1153 | enum route_map_type type, | |
1154 | int pref) | |
718e3744 | 1155 | { |
d62a17ae | 1156 | struct route_map_index *index; |
718e3744 | 1157 | |
d62a17ae | 1158 | for (index = map->head; index; index = index->next) |
1159 | if ((index->type == type || type == RMAP_ANY) | |
1160 | && index->pref == pref) | |
1161 | return index; | |
1162 | return NULL; | |
718e3744 | 1163 | } |
1164 | ||
1165 | /* Add new index to route map. */ | |
8cc4198f | 1166 | static struct route_map_index * |
d62a17ae | 1167 | route_map_index_add(struct route_map *map, enum route_map_type type, int pref) |
1168 | { | |
1169 | struct route_map_index *index; | |
1170 | struct route_map_index *point; | |
1171 | ||
1172 | /* Allocate new route map inex. */ | |
1173 | index = route_map_index_new(); | |
1174 | index->map = map; | |
1175 | index->type = type; | |
1176 | index->pref = pref; | |
1177 | ||
1178 | /* Compare preference. */ | |
1179 | for (point = map->head; point; point = point->next) | |
1180 | if (point->pref >= pref) | |
1181 | break; | |
1182 | ||
1183 | if (map->head == NULL) { | |
1184 | map->head = map->tail = index; | |
1185 | } else if (point == NULL) { | |
1186 | index->prev = map->tail; | |
1187 | map->tail->next = index; | |
1188 | map->tail = index; | |
1189 | } else if (point == map->head) { | |
1190 | index->next = map->head; | |
1191 | map->head->prev = index; | |
1192 | map->head = index; | |
1193 | } else { | |
1194 | index->next = point; | |
1195 | index->prev = point->prev; | |
1196 | if (point->prev) | |
1197 | point->prev->next = index; | |
1198 | point->prev = index; | |
1199 | } | |
1200 | ||
2d26f094 | 1201 | route_map_pfx_tbl_update(RMAP_EVENT_INDEX_ADDED, index, 0, NULL); |
49a08bb0 | 1202 | |
d62a17ae | 1203 | /* Execute event hook. */ |
1204 | if (route_map_master.event_hook) { | |
097b5973 | 1205 | (*route_map_master.event_hook)(map->name); |
d62a17ae | 1206 | route_map_notify_dependencies(map->name, RMAP_EVENT_CALL_ADDED); |
1207 | } | |
e3ab8170 AD |
1208 | |
1209 | if (rmap_debug) | |
1210 | zlog_debug("Route-map %s add sequence %d, type: %s", | |
1211 | map->name, pref, route_map_type_str(type)); | |
1212 | ||
d62a17ae | 1213 | return index; |
718e3744 | 1214 | } |
1215 | ||
1216 | /* Get route map index. */ | |
a7282663 | 1217 | struct route_map_index * |
d62a17ae | 1218 | route_map_index_get(struct route_map *map, enum route_map_type type, int pref) |
718e3744 | 1219 | { |
d62a17ae | 1220 | struct route_map_index *index; |
718e3744 | 1221 | |
d62a17ae | 1222 | index = route_map_index_lookup(map, RMAP_ANY, pref); |
1223 | if (index && index->type != type) { | |
1224 | /* Delete index from route map. */ | |
1225 | route_map_index_delete(index, 1); | |
1226 | index = NULL; | |
1227 | } | |
1228 | if (index == NULL) | |
1229 | index = route_map_index_add(map, type, pref); | |
1230 | return index; | |
718e3744 | 1231 | } |
1232 | ||
1233 | /* New route map rule */ | |
d62a17ae | 1234 | static struct route_map_rule *route_map_rule_new(void) |
718e3744 | 1235 | { |
d62a17ae | 1236 | struct route_map_rule *new; |
718e3744 | 1237 | |
d62a17ae | 1238 | new = XCALLOC(MTYPE_ROUTE_MAP_RULE, sizeof(struct route_map_rule)); |
1239 | return new; | |
718e3744 | 1240 | } |
6b0655a2 | 1241 | |
718e3744 | 1242 | /* Install rule command to the match list. */ |
88711d8a | 1243 | void _route_map_install_match(struct route_map_rule_cmd_proxy *proxy) |
718e3744 | 1244 | { |
88711d8a | 1245 | rmap_cmd_name_add(rmap_match_cmds, proxy); |
718e3744 | 1246 | } |
1247 | ||
1248 | /* Install rule command to the set list. */ | |
88711d8a | 1249 | void _route_map_install_set(struct route_map_rule_cmd_proxy *proxy) |
718e3744 | 1250 | { |
88711d8a | 1251 | rmap_cmd_name_add(rmap_set_cmds, proxy); |
718e3744 | 1252 | } |
1253 | ||
1254 | /* Lookup rule command from match list. */ | |
364deb04 | 1255 | static const struct route_map_rule_cmd *route_map_lookup_match(const char *name) |
718e3744 | 1256 | { |
88711d8a DL |
1257 | struct route_map_rule_cmd refcmd = {.str = name}; |
1258 | struct route_map_rule_cmd_proxy ref = {.cmd = &refcmd}; | |
1259 | struct route_map_rule_cmd_proxy *res; | |
718e3744 | 1260 | |
88711d8a DL |
1261 | res = rmap_cmd_name_find(rmap_match_cmds, &ref); |
1262 | if (res) | |
1263 | return res->cmd; | |
d62a17ae | 1264 | return NULL; |
718e3744 | 1265 | } |
1266 | ||
1267 | /* Lookup rule command from set list. */ | |
364deb04 | 1268 | static const struct route_map_rule_cmd *route_map_lookup_set(const char *name) |
718e3744 | 1269 | { |
88711d8a DL |
1270 | struct route_map_rule_cmd refcmd = {.str = name}; |
1271 | struct route_map_rule_cmd_proxy ref = {.cmd = &refcmd}; | |
1272 | struct route_map_rule_cmd_proxy *res; | |
718e3744 | 1273 | |
88711d8a DL |
1274 | res = rmap_cmd_name_find(rmap_set_cmds, &ref); |
1275 | if (res) | |
1276 | return res->cmd; | |
d62a17ae | 1277 | return NULL; |
718e3744 | 1278 | } |
1279 | ||
1280 | /* Add match and set rule to rule list. */ | |
d62a17ae | 1281 | static void route_map_rule_add(struct route_map_rule_list *list, |
1282 | struct route_map_rule *rule) | |
718e3744 | 1283 | { |
d62a17ae | 1284 | rule->next = NULL; |
1285 | rule->prev = list->tail; | |
1286 | if (list->tail) | |
1287 | list->tail->next = rule; | |
1288 | else | |
1289 | list->head = rule; | |
1290 | list->tail = rule; | |
718e3744 | 1291 | } |
1292 | ||
1293 | /* Delete rule from rule list. */ | |
d62a17ae | 1294 | static void route_map_rule_delete(struct route_map_rule_list *list, |
1295 | struct route_map_rule *rule) | |
718e3744 | 1296 | { |
d62a17ae | 1297 | if (rule->cmd->func_free) |
1298 | (*rule->cmd->func_free)(rule->value); | |
718e3744 | 1299 | |
0a22ddfb | 1300 | XFREE(MTYPE_ROUTE_MAP_RULE_STR, rule->rule_str); |
718e3744 | 1301 | |
d62a17ae | 1302 | if (rule->next) |
1303 | rule->next->prev = rule->prev; | |
1304 | else | |
1305 | list->tail = rule->prev; | |
1306 | if (rule->prev) | |
1307 | rule->prev->next = rule->next; | |
1308 | else | |
1309 | list->head = rule->next; | |
718e3744 | 1310 | |
d62a17ae | 1311 | XFREE(MTYPE_ROUTE_MAP_RULE, rule); |
718e3744 | 1312 | } |
1313 | ||
1314 | /* strcmp wrapper function which don't crush even argument is NULL. */ | |
d62a17ae | 1315 | static int rulecmp(const char *dst, const char *src) |
1316 | { | |
1317 | if (dst == NULL) { | |
1318 | if (src == NULL) | |
1319 | return 0; | |
1320 | else | |
1321 | return 1; | |
1322 | } else { | |
1323 | if (src == NULL) | |
1324 | return 1; | |
1325 | else | |
1326 | return strcmp(dst, src); | |
1327 | } | |
718e3744 | 1328 | return 1; |
718e3744 | 1329 | } |
1330 | ||
518f0eb1 DS |
1331 | /* Use this to return the already specified argument for this match. This is |
1332 | * useful to get the specified argument with a route map match rule when the | |
1333 | * rule is being deleted and the argument is not provided. | |
1334 | */ | |
d62a17ae | 1335 | const char *route_map_get_match_arg(struct route_map_index *index, |
1336 | const char *match_name) | |
518f0eb1 | 1337 | { |
d62a17ae | 1338 | struct route_map_rule *rule; |
364deb04 | 1339 | const struct route_map_rule_cmd *cmd; |
518f0eb1 | 1340 | |
d62a17ae | 1341 | /* First lookup rule for add match statement. */ |
1342 | cmd = route_map_lookup_match(match_name); | |
1343 | if (cmd == NULL) | |
1344 | return NULL; | |
518f0eb1 | 1345 | |
d62a17ae | 1346 | for (rule = index->match_list.head; rule; rule = rule->next) |
1347 | if (rule->cmd == cmd && rule->rule_str != NULL) | |
1348 | return (rule->rule_str); | |
518f0eb1 | 1349 | |
95f7965d | 1350 | return NULL; |
518f0eb1 DS |
1351 | } |
1352 | ||
e2c8d6ce NT |
1353 | static route_map_event_t get_route_map_delete_event(route_map_event_t type) |
1354 | { | |
1355 | switch (type) { | |
1356 | case RMAP_EVENT_CALL_ADDED: | |
1357 | return RMAP_EVENT_CALL_DELETED; | |
1358 | case RMAP_EVENT_PLIST_ADDED: | |
1359 | return RMAP_EVENT_PLIST_DELETED; | |
1360 | case RMAP_EVENT_CLIST_ADDED: | |
1361 | return RMAP_EVENT_CLIST_DELETED; | |
1362 | case RMAP_EVENT_ECLIST_ADDED: | |
1363 | return RMAP_EVENT_ECLIST_DELETED; | |
1364 | case RMAP_EVENT_LLIST_ADDED: | |
1365 | return RMAP_EVENT_LLIST_DELETED; | |
1366 | case RMAP_EVENT_ASLIST_ADDED: | |
1367 | return RMAP_EVENT_ASLIST_DELETED; | |
1368 | case RMAP_EVENT_FILTER_ADDED: | |
1369 | return RMAP_EVENT_FILTER_DELETED; | |
1370 | case RMAP_EVENT_SET_ADDED: | |
1371 | case RMAP_EVENT_SET_DELETED: | |
1372 | case RMAP_EVENT_SET_REPLACED: | |
1373 | case RMAP_EVENT_MATCH_ADDED: | |
1374 | case RMAP_EVENT_MATCH_DELETED: | |
1375 | case RMAP_EVENT_MATCH_REPLACED: | |
1376 | case RMAP_EVENT_INDEX_ADDED: | |
1377 | case RMAP_EVENT_INDEX_DELETED: | |
1378 | case RMAP_EVENT_CALL_DELETED: | |
1379 | case RMAP_EVENT_PLIST_DELETED: | |
1380 | case RMAP_EVENT_CLIST_DELETED: | |
1381 | case RMAP_EVENT_ECLIST_DELETED: | |
1382 | case RMAP_EVENT_LLIST_DELETED: | |
1383 | case RMAP_EVENT_ASLIST_DELETED: | |
1384 | case RMAP_EVENT_FILTER_DELETED: | |
1385 | /* This function returns the appropriate 'deleted' event type | |
1386 | * for every 'added' event type passed to this function. | |
1387 | * This is done only for named entities used in the | |
1388 | * route-map match commands. | |
1389 | * This function is not to be invoked for any of the other event | |
1390 | * types. | |
1391 | */ | |
1392 | assert(0); | |
1393 | } | |
f232dd29 DS |
1394 | |
1395 | assert(0); | |
1396 | /* | |
1397 | * Return to make c happy but if we get here something has gone | |
1398 | * terribly terribly wrong, so yes this return makes no sense. | |
1399 | */ | |
1400 | return RMAP_EVENT_CALL_ADDED; | |
e2c8d6ce NT |
1401 | } |
1402 | ||
718e3744 | 1403 | /* Add match statement to route map. */ |
cda7187d DS |
1404 | enum rmap_compile_rets route_map_add_match(struct route_map_index *index, |
1405 | const char *match_name, | |
1406 | const char *match_arg, | |
1407 | route_map_event_t type) | |
d62a17ae | 1408 | { |
1409 | struct route_map_rule *rule; | |
1410 | struct route_map_rule *next; | |
364deb04 | 1411 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1412 | void *compile; |
e2c8d6ce | 1413 | int8_t delete_rmap_event_type = 0; |
909f3d56 | 1414 | const char *rule_key; |
d62a17ae | 1415 | |
1416 | /* First lookup rule for add match statement. */ | |
1417 | cmd = route_map_lookup_match(match_name); | |
1418 | if (cmd == NULL) | |
1419 | return RMAP_RULE_MISSING; | |
1420 | ||
1421 | /* Next call compile function for this match statement. */ | |
1422 | if (cmd->func_compile) { | |
1423 | compile = (*cmd->func_compile)(match_arg); | |
1424 | if (compile == NULL) | |
1425 | return RMAP_COMPILE_ERROR; | |
1426 | } else | |
1427 | compile = NULL; | |
909f3d56 | 1428 | /* use the compiled results if applicable */ |
1429 | if (compile && cmd->func_get_rmap_rule_key) | |
1430 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1431 | (compile); | |
1432 | else | |
1433 | rule_key = match_arg; | |
d62a17ae | 1434 | |
1435 | /* If argument is completely same ignore it. */ | |
1436 | for (rule = index->match_list.head; rule; rule = next) { | |
1437 | next = rule->next; | |
1438 | if (rule->cmd == cmd) { | |
6c3247bd NT |
1439 | /* If the configured route-map match rule is exactly |
1440 | * the same as the existing configuration then, | |
1441 | * ignore the duplicate configuration. | |
1442 | */ | |
30475121 | 1443 | if (rulecmp(match_arg, rule->rule_str) == 0) { |
6c3247bd NT |
1444 | if (cmd->func_free) |
1445 | (*cmd->func_free)(compile); | |
e2c8d6ce | 1446 | |
909f3d56 | 1447 | return RMAP_COMPILE_SUCCESS; |
e2c8d6ce NT |
1448 | } |
1449 | ||
49a08bb0 NT |
1450 | /* If IPv4 or IPv6 prefix-list match criteria |
1451 | * has been delete to the route-map index, update | |
1452 | * the route-map's prefix table. | |
1453 | */ | |
819a23f9 | 1454 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) |
49a08bb0 | 1455 | route_map_pfx_tbl_update( |
2d26f094 NT |
1456 | RMAP_EVENT_PLIST_DELETED, index, AFI_IP, |
1457 | rule->rule_str); | |
819a23f9 | 1458 | else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) |
49a08bb0 | 1459 | route_map_pfx_tbl_update( |
2d26f094 NT |
1460 | RMAP_EVENT_PLIST_DELETED, index, |
1461 | AFI_IP6, rule->rule_str); | |
49a08bb0 | 1462 | |
e2c8d6ce NT |
1463 | /* Remove the dependency of the route-map on the rule |
1464 | * that is being replaced. | |
1465 | */ | |
1466 | if (type >= RMAP_EVENT_CALL_ADDED) { | |
1467 | delete_rmap_event_type = | |
1468 | get_route_map_delete_event(type); | |
1469 | route_map_upd8_dependency( | |
1470 | delete_rmap_event_type, | |
02e7a369 | 1471 | rule->rule_str, |
e2c8d6ce | 1472 | index->map->name); |
6c3247bd NT |
1473 | } |
1474 | ||
d62a17ae | 1475 | route_map_rule_delete(&index->match_list, rule); |
d62a17ae | 1476 | } |
718e3744 | 1477 | } |
718e3744 | 1478 | |
d62a17ae | 1479 | /* Add new route map match rule. */ |
1480 | rule = route_map_rule_new(); | |
1481 | rule->cmd = cmd; | |
1482 | rule->value = compile; | |
1483 | if (match_arg) | |
1484 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, match_arg); | |
1485 | else | |
1486 | rule->rule_str = NULL; | |
718e3744 | 1487 | |
d62a17ae | 1488 | /* Add new route match rule to linked list. */ |
1489 | route_map_rule_add(&index->match_list, rule); | |
718e3744 | 1490 | |
49a08bb0 NT |
1491 | /* If IPv4 or IPv6 prefix-list match criteria |
1492 | * has been added to the route-map index, update | |
1493 | * the route-map's prefix table. | |
1494 | */ | |
819a23f9 | 1495 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) { |
2d26f094 | 1496 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_ADDED, index, AFI_IP, |
49a08bb0 | 1497 | match_arg); |
819a23f9 | 1498 | } else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) { |
2d26f094 | 1499 | route_map_pfx_tbl_update(RMAP_EVENT_PLIST_ADDED, index, AFI_IP6, |
49a08bb0 | 1500 | match_arg); |
49a08bb0 NT |
1501 | } |
1502 | ||
d62a17ae | 1503 | /* Execute event hook. */ |
1504 | if (route_map_master.event_hook) { | |
097b5973 | 1505 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1506 | route_map_notify_dependencies(index->map->name, |
1507 | RMAP_EVENT_CALL_ADDED); | |
1508 | } | |
909f3d56 | 1509 | if (type != RMAP_EVENT_MATCH_ADDED) |
1510 | route_map_upd8_dependency(type, rule_key, index->map->name); | |
718e3744 | 1511 | |
9ca25fed | 1512 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1513 | } |
1514 | ||
1515 | /* Delete specified route match rule. */ | |
cda7187d DS |
1516 | enum rmap_compile_rets route_map_delete_match(struct route_map_index *index, |
1517 | const char *match_name, | |
909f3d56 | 1518 | const char *match_arg, |
1519 | route_map_event_t type) | |
d62a17ae | 1520 | { |
1521 | struct route_map_rule *rule; | |
364deb04 | 1522 | const struct route_map_rule_cmd *cmd; |
909f3d56 | 1523 | const char *rule_key; |
d62a17ae | 1524 | |
1525 | cmd = route_map_lookup_match(match_name); | |
1526 | if (cmd == NULL) | |
e5b4b49e | 1527 | return RMAP_RULE_MISSING; |
d62a17ae | 1528 | |
1529 | for (rule = index->match_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1530 | if (rule->cmd == cmd && (rulecmp(rule->rule_str, match_arg) == 0 |
1531 | || match_arg == NULL)) { | |
d62a17ae | 1532 | /* Execute event hook. */ |
1533 | if (route_map_master.event_hook) { | |
097b5973 | 1534 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1535 | route_map_notify_dependencies( |
1536 | index->map->name, | |
1537 | RMAP_EVENT_CALL_ADDED); | |
1538 | } | |
909f3d56 | 1539 | if (cmd->func_get_rmap_rule_key) |
1540 | rule_key = (*cmd->func_get_rmap_rule_key) | |
1541 | (rule->value); | |
1542 | else | |
1543 | rule_key = match_arg; | |
1544 | ||
1545 | if (type != RMAP_EVENT_MATCH_DELETED && rule_key) | |
1546 | route_map_upd8_dependency(type, rule_key, | |
1547 | index->map->name); | |
1548 | ||
1549 | route_map_rule_delete(&index->match_list, rule); | |
49a08bb0 NT |
1550 | |
1551 | /* If IPv4 or IPv6 prefix-list match criteria | |
3eca8715 | 1552 | * has been delete from the route-map index, update |
49a08bb0 NT |
1553 | * the route-map's prefix table. |
1554 | */ | |
819a23f9 | 1555 | if (IS_RULE_IPv4_PREFIX_LIST(match_name)) { |
49a08bb0 | 1556 | route_map_pfx_tbl_update( |
2d26f094 NT |
1557 | RMAP_EVENT_PLIST_DELETED, index, AFI_IP, |
1558 | match_arg); | |
819a23f9 | 1559 | } else if (IS_RULE_IPv6_PREFIX_LIST(match_name)) { |
49a08bb0 | 1560 | route_map_pfx_tbl_update( |
2d26f094 NT |
1561 | RMAP_EVENT_PLIST_DELETED, index, |
1562 | AFI_IP6, match_arg); | |
49a08bb0 NT |
1563 | } |
1564 | ||
e5b4b49e | 1565 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1566 | } |
1567 | /* Can't find matched rule. */ | |
e5b4b49e | 1568 | return RMAP_RULE_MISSING; |
718e3744 | 1569 | } |
1570 | ||
1571 | /* Add route-map set statement to the route map. */ | |
cda7187d DS |
1572 | enum rmap_compile_rets route_map_add_set(struct route_map_index *index, |
1573 | const char *set_name, | |
1574 | const char *set_arg) | |
d62a17ae | 1575 | { |
1576 | struct route_map_rule *rule; | |
1577 | struct route_map_rule *next; | |
364deb04 | 1578 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1579 | void *compile; |
d62a17ae | 1580 | |
1581 | cmd = route_map_lookup_set(set_name); | |
1582 | if (cmd == NULL) | |
1583 | return RMAP_RULE_MISSING; | |
1584 | ||
1585 | /* Next call compile function for this match statement. */ | |
1586 | if (cmd->func_compile) { | |
1587 | compile = (*cmd->func_compile)(set_arg); | |
1588 | if (compile == NULL) | |
1589 | return RMAP_COMPILE_ERROR; | |
1590 | } else | |
1591 | compile = NULL; | |
1592 | ||
1593 | /* Add by WJL. if old set command of same kind exist, delete it first | |
1594 | to ensure only one set command of same kind exist under a | |
1595 | route_map_index. */ | |
1596 | for (rule = index->set_list.head; rule; rule = next) { | |
1597 | next = rule->next; | |
4255dbe9 | 1598 | if (rule->cmd == cmd) |
d62a17ae | 1599 | route_map_rule_delete(&index->set_list, rule); |
d62a17ae | 1600 | } |
1601 | ||
1602 | /* Add new route map match rule. */ | |
1603 | rule = route_map_rule_new(); | |
1604 | rule->cmd = cmd; | |
1605 | rule->value = compile; | |
1606 | if (set_arg) | |
1607 | rule->rule_str = XSTRDUP(MTYPE_ROUTE_MAP_RULE_STR, set_arg); | |
1608 | else | |
1609 | rule->rule_str = NULL; | |
1610 | ||
1611 | /* Add new route match rule to linked list. */ | |
1612 | route_map_rule_add(&index->set_list, rule); | |
1613 | ||
1614 | /* Execute event hook. */ | |
1615 | if (route_map_master.event_hook) { | |
097b5973 | 1616 | (*route_map_master.event_hook)(index->map->name); |
d62a17ae | 1617 | route_map_notify_dependencies(index->map->name, |
1618 | RMAP_EVENT_CALL_ADDED); | |
718e3744 | 1619 | } |
9ca25fed | 1620 | return RMAP_COMPILE_SUCCESS; |
718e3744 | 1621 | } |
1622 | ||
1623 | /* Delete route map set rule. */ | |
cda7187d DS |
1624 | enum rmap_compile_rets route_map_delete_set(struct route_map_index *index, |
1625 | const char *set_name, | |
1626 | const char *set_arg) | |
d62a17ae | 1627 | { |
1628 | struct route_map_rule *rule; | |
364deb04 | 1629 | const struct route_map_rule_cmd *cmd; |
d62a17ae | 1630 | |
1631 | cmd = route_map_lookup_set(set_name); | |
1632 | if (cmd == NULL) | |
e5b4b49e | 1633 | return RMAP_RULE_MISSING; |
d62a17ae | 1634 | |
1635 | for (rule = index->set_list.head; rule; rule = rule->next) | |
9d303b37 DL |
1636 | if ((rule->cmd == cmd) && (rulecmp(rule->rule_str, set_arg) == 0 |
1637 | || set_arg == NULL)) { | |
d62a17ae | 1638 | route_map_rule_delete(&index->set_list, rule); |
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( |
1643 | index->map->name, | |
1644 | RMAP_EVENT_CALL_ADDED); | |
1645 | } | |
e5b4b49e | 1646 | return RMAP_COMPILE_SUCCESS; |
d62a17ae | 1647 | } |
1648 | /* Can't find matched rule. */ | |
e5b4b49e | 1649 | return RMAP_RULE_MISSING; |
718e3744 | 1650 | } |
1651 | ||
b68885f9 LK |
1652 | static enum route_map_cmd_result_t |
1653 | route_map_apply_match(struct route_map_rule_list *match_list, | |
1782514f | 1654 | const struct prefix *prefix, void *object) |
b68885f9 LK |
1655 | { |
1656 | enum route_map_cmd_result_t ret = RMAP_NOMATCH; | |
1657 | struct route_map_rule *match; | |
1658 | bool is_matched = false; | |
1659 | ||
1660 | ||
1661 | /* Check all match rule and if there is no match rule, go to the | |
1662 | set statement. */ | |
1663 | if (!match_list->head) | |
1664 | ret = RMAP_MATCH; | |
1665 | else { | |
1666 | for (match = match_list->head; match; match = match->next) { | |
1667 | /* | |
1668 | * Try each match statement. If any match does not | |
1669 | * return RMAP_MATCH or RMAP_NOOP, return. | |
1670 | * Otherwise continue on to next match statement. | |
1671 | * All match statements must MATCH for | |
1672 | * end-result to be a match. | |
1673 | * (Exception:If match stmts result in a mix of | |
1674 | * MATCH/NOOP, then also end-result is a match) | |
1675 | * If all result in NOOP, end-result is NOOP. | |
1676 | */ | |
1677 | ret = (*match->cmd->func_apply)(match->value, prefix, | |
1782514f | 1678 | object); |
b68885f9 LK |
1679 | |
1680 | /* | |
1681 | * If the consolidated result of func_apply is: | |
1682 | * ----------------------------------------------- | |
1683 | * | MATCH | NOMATCH | NOOP | Final Result | | |
1684 | * ------------------------------------------------ | |
1685 | * | yes | yes | yes | NOMATCH | | |
1686 | * | no | no | yes | NOOP | | |
1687 | * | yes | no | yes | MATCH | | |
1688 | * | no | yes | yes | NOMATCH | | |
1689 | * |----------------------------------------------- | |
1690 | * | |
1691 | * Traditionally, all rules within route-map | |
1692 | * should match for it to MATCH. | |
1693 | * If there are noops within the route-map rules, | |
1694 | * it follows the above matrix. | |
1695 | * | |
1696 | * Eg: route-map rm1 permit 10 | |
1697 | * match rule1 | |
1698 | * match rule2 | |
1699 | * match rule3 | |
1700 | * .... | |
1701 | * route-map rm1 permit 20 | |
1702 | * match ruleX | |
1703 | * match ruleY | |
1704 | * ... | |
1705 | */ | |
1706 | ||
1707 | switch (ret) { | |
1708 | case RMAP_MATCH: | |
1709 | is_matched = true; | |
1710 | break; | |
1711 | ||
1712 | case RMAP_NOMATCH: | |
1713 | return ret; | |
1714 | ||
1715 | case RMAP_NOOP: | |
1716 | if (is_matched) | |
1717 | ret = RMAP_MATCH; | |
1718 | break; | |
1719 | ||
1720 | default: | |
1721 | break; | |
1722 | } | |
1723 | ||
1724 | } | |
1725 | } | |
1726 | return ret; | |
1727 | } | |
1728 | ||
2d26f094 NT |
1729 | static struct list *route_map_get_index_list(struct route_node **rn, |
1730 | const struct prefix *prefix, | |
1731 | struct route_table *table) | |
819a23f9 NT |
1732 | { |
1733 | struct route_node *tmp_rn = NULL; | |
1734 | ||
1735 | if (!(*rn)) { | |
1736 | *rn = route_node_match(table, prefix); | |
1737 | ||
1738 | if (!(*rn)) | |
1739 | return NULL; | |
1740 | ||
1741 | if ((*rn)->info) | |
1742 | return (struct list *)((*rn)->info); | |
1743 | ||
1744 | /* If rn->info is NULL, get the parent. | |
1745 | * Store the rn in tmp_rn and unlock it later. | |
1746 | */ | |
1747 | tmp_rn = *rn; | |
1748 | } | |
1749 | ||
1750 | do { | |
1751 | *rn = (*rn)->parent; | |
1752 | if (tmp_rn) | |
1753 | route_unlock_node(tmp_rn); | |
1754 | ||
1755 | if (!(*rn)) | |
1756 | break; | |
1757 | ||
1758 | if ((*rn)->info) { | |
1759 | route_lock_node(*rn); | |
1760 | return (struct list *)((*rn)->info); | |
1761 | } | |
1762 | } while (!(*rn)->info); | |
1763 | ||
1764 | return NULL; | |
1765 | } | |
1766 | ||
1767 | /* | |
1768 | * This function returns the route-map index that best matches the prefix. | |
1769 | */ | |
1782514f DS |
1770 | static struct route_map_index *route_map_get_index(struct route_map *map, |
1771 | const struct prefix *prefix, | |
1772 | void *object, | |
1773 | uint8_t *match_ret) | |
819a23f9 NT |
1774 | { |
1775 | int ret = 0; | |
1776 | struct list *candidate_rmap_list = NULL; | |
1777 | struct route_node *rn = NULL; | |
1778 | struct listnode *ln = NULL, *nn = NULL; | |
1779 | struct route_map_index *index = NULL, *best_index = NULL; | |
1780 | struct route_map_index *head_index = NULL; | |
1781 | struct route_table *table = NULL; | |
1782 | unsigned char family = prefix->family; | |
1783 | ||
1784 | if (family == AF_INET) | |
1785 | table = map->ipv4_prefix_table; | |
1786 | else | |
1787 | table = map->ipv6_prefix_table; | |
1788 | ||
1789 | if (!table) | |
1790 | return NULL; | |
1791 | ||
1792 | do { | |
2d26f094 NT |
1793 | candidate_rmap_list = |
1794 | route_map_get_index_list(&rn, prefix, table); | |
819a23f9 NT |
1795 | if (!rn) |
1796 | break; | |
1797 | ||
1798 | /* If the index at the head of the list is of seq higher | |
1799 | * than that in best_index, ignore the list and get the | |
1800 | * parent node's list. | |
1801 | */ | |
2d26f094 NT |
1802 | head_index = (struct route_map_index *)(listgetdata( |
1803 | listhead(candidate_rmap_list))); | |
1804 | if (best_index && head_index | |
1805 | && (best_index->pref < head_index->pref)) { | |
819a23f9 NT |
1806 | route_unlock_node(rn); |
1807 | continue; | |
1808 | } | |
1809 | ||
1810 | for (ALL_LIST_ELEMENTS(candidate_rmap_list, ln, nn, index)) { | |
1811 | /* If the index is of seq higher than that in | |
1812 | * best_index, ignore the list and get the parent | |
1813 | * node's list. | |
1814 | */ | |
1815 | if (best_index && (best_index->pref < index->pref)) | |
1816 | break; | |
1817 | ||
2d26f094 | 1818 | ret = route_map_apply_match(&index->match_list, prefix, |
1782514f | 1819 | object); |
819a23f9 NT |
1820 | |
1821 | if (ret == RMAP_MATCH) { | |
1822 | *match_ret = ret; | |
1823 | best_index = index; | |
1824 | break; | |
1825 | } else if (ret == RMAP_NOOP) { | |
1826 | /* | |
1827 | * If match_ret is denymatch, even if we see | |
1828 | * more noops, we retain this return value and | |
1829 | * return this eventually if there are no | |
1830 | * matches. | |
1410dd3f NT |
1831 | * If a best match route-map index already |
1832 | * exists, do not reset the match_ret. | |
819a23f9 | 1833 | */ |
1410dd3f | 1834 | if (!best_index && (*match_ret != RMAP_NOMATCH)) |
819a23f9 NT |
1835 | *match_ret = ret; |
1836 | } else { | |
1837 | /* | |
1838 | * ret is RMAP_NOMATCH. | |
1410dd3f NT |
1839 | * If a best match route-map index already |
1840 | * exists, do not reset the match_ret. | |
819a23f9 | 1841 | */ |
1410dd3f NT |
1842 | if (!best_index) |
1843 | *match_ret = ret; | |
819a23f9 NT |
1844 | } |
1845 | } | |
1846 | ||
1847 | route_unlock_node(rn); | |
1848 | ||
1849 | } while (rn); | |
1850 | ||
1851 | return best_index; | |
1852 | } | |
1853 | ||
2d26f094 NT |
1854 | static int route_map_candidate_list_cmp(struct route_map_index *idx1, |
1855 | struct route_map_index *idx2) | |
49a08bb0 NT |
1856 | { |
1857 | if (!idx1) | |
1858 | return -1; | |
1859 | if (!idx2) | |
1860 | return 1; | |
1861 | ||
1862 | return (idx1->pref - idx2->pref); | |
1863 | } | |
1864 | ||
1865 | /* | |
1866 | * This function adds the route-map index into the default route's | |
1867 | * route-node in the route-map's IPv4/IPv6 prefix-table. | |
1868 | */ | |
2d26f094 NT |
1869 | static void route_map_pfx_table_add_default(afi_t afi, |
1870 | struct route_map_index *index) | |
49a08bb0 NT |
1871 | { |
1872 | struct route_node *rn = NULL; | |
1873 | struct list *rmap_candidate_list = NULL; | |
1874 | struct prefix p; | |
1875 | bool updated_rn = false; | |
1876 | struct route_table *table = NULL; | |
1877 | ||
1878 | memset(&p, 0, sizeof(p)); | |
1879 | p.family = afi2family(afi); | |
1880 | p.prefixlen = 0; | |
1881 | ||
1882 | if (p.family == AF_INET) { | |
1883 | table = index->map->ipv4_prefix_table; | |
1884 | if (!table) | |
1885 | index->map->ipv4_prefix_table = route_table_init(); | |
1886 | ||
1887 | table = index->map->ipv4_prefix_table; | |
1888 | } else { | |
1889 | table = index->map->ipv6_prefix_table; | |
1890 | if (!table) | |
1891 | index->map->ipv6_prefix_table = route_table_init(); | |
1892 | ||
1893 | table = index->map->ipv6_prefix_table; | |
1894 | } | |
1895 | ||
1896 | /* Add default route to table */ | |
1897 | rn = route_node_get(table, &p); | |
1898 | ||
1899 | if (!rn) | |
1900 | return; | |
1901 | ||
1902 | if (!rn->info) { | |
1903 | rmap_candidate_list = list_new(); | |
1904 | rmap_candidate_list->cmp = | |
1905 | (int (*)(void *, void *))route_map_candidate_list_cmp; | |
1906 | rn->info = rmap_candidate_list; | |
1907 | } else { | |
1908 | rmap_candidate_list = (struct list *)rn->info; | |
1909 | updated_rn = true; | |
1910 | } | |
1911 | ||
1912 | listnode_add_sort_nodup(rmap_candidate_list, index); | |
1913 | if (updated_rn) | |
1914 | route_unlock_node(rn); | |
1915 | } | |
1916 | ||
1917 | /* | |
1918 | * This function removes the route-map index from the default route's | |
1919 | * route-node in the route-map's IPv4/IPv6 prefix-table. | |
1920 | */ | |
2d26f094 NT |
1921 | static void route_map_pfx_table_del_default(afi_t afi, |
1922 | struct route_map_index *index) | |
49a08bb0 NT |
1923 | { |
1924 | struct route_node *rn = NULL; | |
1925 | struct list *rmap_candidate_list = NULL; | |
1926 | struct prefix p; | |
1927 | struct route_table *table = NULL; | |
1928 | ||
1929 | memset(&p, 0, sizeof(p)); | |
1930 | p.family = afi2family(afi); | |
1931 | p.prefixlen = 0; | |
1932 | ||
1933 | if (p.family == AF_INET) | |
1934 | table = index->map->ipv4_prefix_table; | |
1935 | else | |
1936 | table = index->map->ipv6_prefix_table; | |
1937 | ||
1938 | /* Remove RMAP index from default route in table */ | |
1939 | rn = route_node_lookup(table, &p); | |
1940 | if (!rn || !rn->info) | |
1941 | return; | |
1942 | ||
1943 | rmap_candidate_list = (struct list *)rn->info; | |
1944 | ||
1945 | listnode_delete(rmap_candidate_list, index); | |
1946 | ||
1947 | if (listcount(rmap_candidate_list) == 0) { | |
1948 | list_delete(&rmap_candidate_list); | |
1949 | rn->info = NULL; | |
1950 | route_unlock_node(rn); | |
1951 | } | |
1952 | route_unlock_node(rn); | |
1953 | } | |
1954 | ||
1955 | /* | |
1956 | * This function adds the route-map index to the route-node for | |
1957 | * the prefix-entry in the route-map's IPv4/IPv6 prefix-table. | |
1958 | */ | |
2d26f094 NT |
1959 | static void route_map_pfx_table_add(struct route_table *table, |
1960 | struct route_map_index *index, | |
1961 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
1962 | { |
1963 | struct route_node *rn = NULL; | |
1964 | struct list *rmap_candidate_list = NULL; | |
1965 | bool updated_rn = false; | |
1966 | ||
1967 | rn = route_node_get(table, &pentry->prefix); | |
1968 | if (!rn) | |
1969 | return; | |
1970 | ||
1971 | if (!rn->info) { | |
1972 | rmap_candidate_list = list_new(); | |
1973 | rmap_candidate_list->cmp = | |
1974 | (int (*)(void *, void *))route_map_candidate_list_cmp; | |
1975 | rn->info = rmap_candidate_list; | |
1976 | } else { | |
1977 | rmap_candidate_list = (struct list *)rn->info; | |
1978 | updated_rn = true; | |
1979 | } | |
1980 | ||
1981 | listnode_add_sort_nodup(rmap_candidate_list, index); | |
1982 | if (updated_rn) | |
1983 | route_unlock_node(rn); | |
1984 | } | |
1985 | ||
1986 | /* | |
1987 | * This function removes the route-map index from the route-node for | |
1988 | * the prefix-entry in the route-map's IPv4/IPv6 prefix-table. | |
1989 | */ | |
2d26f094 NT |
1990 | static void route_map_pfx_table_del(struct route_table *table, |
1991 | struct route_map_index *index, | |
1992 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
1993 | { |
1994 | struct route_node *rn = NULL; | |
1995 | struct list *rmap_candidate_list = NULL; | |
1996 | ||
1997 | rn = route_node_lookup(table, &pentry->prefix); | |
1998 | if (!rn || !rn->info) | |
1999 | return; | |
2000 | ||
2001 | rmap_candidate_list = (struct list *)rn->info; | |
2002 | ||
2003 | listnode_delete(rmap_candidate_list, index); | |
2004 | ||
2005 | if (listcount(rmap_candidate_list) == 0) { | |
2006 | list_delete(&rmap_candidate_list); | |
2007 | rn->info = NULL; | |
2008 | route_unlock_node(rn); | |
2009 | } | |
2010 | route_unlock_node(rn); | |
2011 | } | |
2012 | ||
3eca8715 NT |
2013 | /* This function checks for the presence of an IPv4 prefix-list |
2014 | * match rule in the given route-map index. | |
49a08bb0 | 2015 | */ |
3eca8715 | 2016 | static bool route_map_is_ip_pfx_list_rule_present(struct route_map_index *index) |
49a08bb0 NT |
2017 | { |
2018 | struct route_map_rule_list *match_list = NULL; | |
2019 | struct route_map_rule *rule = NULL; | |
2020 | ||
2021 | match_list = &index->match_list; | |
2022 | for (rule = match_list->head; rule; rule = rule->next) | |
3eca8715 | 2023 | if (IS_RULE_IPv4_PREFIX_LIST(rule->cmd->str)) |
49a08bb0 NT |
2024 | return true; |
2025 | ||
2026 | return false; | |
2027 | } | |
2028 | ||
3eca8715 NT |
2029 | /* This function checks for the presence of an IPv6 prefix-list |
2030 | * match rule in the given route-map index. | |
49a08bb0 | 2031 | */ |
3eca8715 NT |
2032 | static bool |
2033 | route_map_is_ipv6_pfx_list_rule_present(struct route_map_index *index) | |
49a08bb0 NT |
2034 | { |
2035 | struct route_map_rule_list *match_list = NULL; | |
2036 | struct route_map_rule *rule = NULL; | |
2037 | ||
2038 | match_list = &index->match_list; | |
2039 | for (rule = match_list->head; rule; rule = rule->next) | |
3eca8715 | 2040 | if (IS_RULE_IPv6_PREFIX_LIST(rule->cmd->str)) |
49a08bb0 NT |
2041 | return true; |
2042 | ||
2043 | return false; | |
2044 | } | |
2045 | ||
2046 | /* This function does the following: | |
2047 | * 1) If plist_name is not present, search for a IPv4 or IPv6 prefix-list | |
2048 | * match clause (based on the afi passed to this foo) and get the | |
2049 | * prefix-list name. | |
2050 | * 2) Look up the prefix-list using the name. | |
2051 | * 3) If the prefix-list is not found then, add the index to the IPv4/IPv6 | |
2052 | * default-route's node in the trie (based on the afi passed to this foo). | |
2053 | * 4) If the prefix-list is found then, remove the index from the IPv4/IPv6 | |
2054 | * default-route's node in the trie (based on the afi passed to this foo). | |
2055 | * 5) If a prefix-entry is passed then, create a route-node for this entry and | |
2056 | * add this index to the route-node. | |
2057 | * 6) If prefix-entry is not passed then, for every prefix-entry in the | |
2058 | * prefix-list, create a route-node for this entry and | |
2059 | * add this index to the route-node. | |
2060 | */ | |
2d26f094 NT |
2061 | static void route_map_add_plist_entries(afi_t afi, |
2062 | struct route_map_index *index, | |
2063 | const char *plist_name, | |
2064 | struct prefix_list_entry *entry) | |
49a08bb0 NT |
2065 | { |
2066 | struct route_map_rule_list *match_list = NULL; | |
2067 | struct route_map_rule *match = NULL; | |
2068 | struct prefix_list *plist = NULL; | |
2069 | struct prefix_list_entry *pentry = NULL; | |
2070 | bool plist_rule_is_present = false; | |
2071 | ||
2072 | if (!plist_name) { | |
2073 | match_list = &index->match_list; | |
2074 | ||
2075 | for (match = match_list->head; match; match = match->next) { | |
819a23f9 | 2076 | if (afi == AFI_IP) { |
2d26f094 | 2077 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2078 | plist_rule_is_present = true; |
2079 | break; | |
2d26f094 | 2080 | } |
819a23f9 | 2081 | } else { |
2d26f094 | 2082 | if (IS_RULE_IPv6_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2083 | plist_rule_is_present = true; |
2084 | break; | |
2d26f094 | 2085 | } |
49a08bb0 NT |
2086 | } |
2087 | } | |
2088 | ||
2089 | if (plist_rule_is_present) | |
2090 | plist = prefix_list_lookup(afi, match->rule_str); | |
2091 | } else { | |
2092 | plist = prefix_list_lookup(afi, plist_name); | |
2093 | } | |
2094 | ||
2095 | if (!plist) { | |
2096 | route_map_pfx_table_add_default(afi, index); | |
2097 | return; | |
2098 | } | |
2099 | ||
4718791c TA |
2100 | /* Default entry should be deleted only if the first entry of the |
2101 | * prefix-list is created. | |
2102 | */ | |
2103 | if (entry) { | |
2104 | if (plist->count == 1) | |
2105 | route_map_pfx_table_del_default(afi, index); | |
2106 | } else { | |
2107 | route_map_pfx_table_del_default(afi, index); | |
2108 | } | |
49a08bb0 NT |
2109 | |
2110 | if (entry) { | |
2111 | if (afi == AFI_IP) { | |
2d26f094 NT |
2112 | route_map_pfx_table_add(index->map->ipv4_prefix_table, |
2113 | index, entry); | |
49a08bb0 | 2114 | } else { |
2d26f094 NT |
2115 | route_map_pfx_table_add(index->map->ipv6_prefix_table, |
2116 | index, entry); | |
49a08bb0 NT |
2117 | } |
2118 | } else { | |
2119 | for (pentry = plist->head; pentry; pentry = pentry->next) { | |
2120 | if (afi == AFI_IP) { | |
2121 | route_map_pfx_table_add( | |
2d26f094 NT |
2122 | index->map->ipv4_prefix_table, index, |
2123 | pentry); | |
49a08bb0 NT |
2124 | } else { |
2125 | route_map_pfx_table_add( | |
2d26f094 NT |
2126 | index->map->ipv6_prefix_table, index, |
2127 | pentry); | |
49a08bb0 NT |
2128 | } |
2129 | } | |
2130 | } | |
2131 | } | |
2132 | ||
2133 | /* This function does the following: | |
2134 | * 1) If plist_name is not present, search for a IPv4 or IPv6 prefix-list | |
2135 | * match clause (based on the afi passed to this foo) and get the | |
2136 | * prefix-list name. | |
2137 | * 2) Look up the prefix-list using the name. | |
2138 | * 3) If the prefix-list is not found then, delete the index from the IPv4/IPv6 | |
2139 | * default-route's node in the trie (based on the afi passed to this foo). | |
2140 | * 4) If a prefix-entry is passed then, remove this index from the route-node | |
2141 | * for the prefix in this prefix-entry. | |
2142 | * 5) If prefix-entry is not passed then, for every prefix-entry in the | |
2143 | * prefix-list, remove this index from the route-node | |
2144 | * for the prefix in this prefix-entry. | |
2145 | */ | |
2d26f094 NT |
2146 | static void route_map_del_plist_entries(afi_t afi, |
2147 | struct route_map_index *index, | |
2148 | const char *plist_name, | |
2149 | struct prefix_list_entry *entry) | |
49a08bb0 NT |
2150 | { |
2151 | struct route_map_rule_list *match_list = NULL; | |
2152 | struct route_map_rule *match = NULL; | |
2153 | struct prefix_list *plist = NULL; | |
2154 | struct prefix_list_entry *pentry = NULL; | |
2155 | bool plist_rule_is_present = false; | |
2156 | ||
2157 | if (!plist_name) { | |
2158 | match_list = &index->match_list; | |
2159 | ||
2160 | for (match = match_list->head; match; match = match->next) { | |
819a23f9 | 2161 | if (afi == AFI_IP) { |
2d26f094 | 2162 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2163 | plist_rule_is_present = true; |
2164 | break; | |
2d26f094 | 2165 | } |
819a23f9 | 2166 | } else { |
2d26f094 | 2167 | if (IS_RULE_IPv6_PREFIX_LIST(match->cmd->str)) { |
819a23f9 NT |
2168 | plist_rule_is_present = true; |
2169 | break; | |
2d26f094 | 2170 | } |
49a08bb0 NT |
2171 | } |
2172 | } | |
2173 | ||
2174 | if (plist_rule_is_present) | |
2175 | plist = prefix_list_lookup(afi, match->rule_str); | |
2176 | } else { | |
2177 | plist = prefix_list_lookup(afi, plist_name); | |
2178 | } | |
2179 | ||
2180 | if (!plist) { | |
2181 | route_map_pfx_table_del_default(afi, index); | |
2182 | return; | |
2183 | } | |
2184 | ||
2185 | if (entry) { | |
2186 | if (afi == AFI_IP) { | |
2d26f094 NT |
2187 | route_map_pfx_table_del(index->map->ipv4_prefix_table, |
2188 | index, entry); | |
49a08bb0 | 2189 | } else { |
2d26f094 NT |
2190 | route_map_pfx_table_del(index->map->ipv6_prefix_table, |
2191 | index, entry); | |
49a08bb0 NT |
2192 | } |
2193 | } else { | |
2194 | for (pentry = plist->head; pentry; pentry = pentry->next) { | |
2195 | if (afi == AFI_IP) { | |
2196 | route_map_pfx_table_del( | |
2d26f094 NT |
2197 | index->map->ipv4_prefix_table, index, |
2198 | pentry); | |
49a08bb0 NT |
2199 | } else { |
2200 | route_map_pfx_table_del( | |
2d26f094 NT |
2201 | index->map->ipv6_prefix_table, index, |
2202 | pentry); | |
49a08bb0 NT |
2203 | } |
2204 | } | |
2205 | } | |
2206 | } | |
2207 | ||
2208 | /* | |
2209 | * This function handles the cases where a prefix-list is added/removed | |
2210 | * as a match command from a particular route-map index. | |
2211 | * It updates the prefix-table of the route-map accordingly. | |
2212 | */ | |
2d26f094 NT |
2213 | static void route_map_trie_update(afi_t afi, route_map_event_t event, |
2214 | struct route_map_index *index, | |
2215 | const char *plist_name) | |
49a08bb0 NT |
2216 | { |
2217 | if (event == RMAP_EVENT_PLIST_ADDED) { | |
2218 | if (afi == AFI_IP) { | |
3eca8715 | 2219 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) { |
2d26f094 | 2220 | route_map_pfx_table_del_default(AFI_IP6, index); |
49a08bb0 NT |
2221 | route_map_add_plist_entries(afi, index, |
2222 | plist_name, NULL); | |
2223 | } else { | |
2224 | route_map_del_plist_entries(AFI_IP6, index, | |
2225 | NULL, NULL); | |
2226 | } | |
2227 | } else { | |
3eca8715 | 2228 | if (!route_map_is_ip_pfx_list_rule_present(index)) { |
2d26f094 | 2229 | route_map_pfx_table_del_default(AFI_IP, index); |
49a08bb0 NT |
2230 | route_map_add_plist_entries(afi, index, |
2231 | plist_name, NULL); | |
2232 | } else { | |
2d26f094 NT |
2233 | route_map_del_plist_entries(AFI_IP, index, NULL, |
2234 | NULL); | |
49a08bb0 NT |
2235 | } |
2236 | } | |
2237 | } else if (event == RMAP_EVENT_PLIST_DELETED) { | |
2238 | if (afi == AFI_IP) { | |
2d26f094 NT |
2239 | route_map_del_plist_entries(afi, index, plist_name, |
2240 | NULL); | |
49a08bb0 | 2241 | |
3eca8715 NT |
2242 | /* If IPv6 prefix-list match rule is not present, |
2243 | * add this index to the IPv4 default route's trie | |
2244 | * node. | |
2245 | * Also, add this index to the trie nodes created | |
2246 | * for each of the prefix-entries within the IPv6 | |
2247 | * prefix-list, if the IPv6 prefix-list match rule | |
2248 | * is present. Else, add this index to the IPv6 | |
2249 | * default route's trie node. | |
2250 | */ | |
2251 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) | |
49a08bb0 NT |
2252 | route_map_pfx_table_add_default(afi, index); |
2253 | ||
3eca8715 | 2254 | route_map_add_plist_entries(AFI_IP6, index, NULL, NULL); |
49a08bb0 | 2255 | } else { |
2d26f094 NT |
2256 | route_map_del_plist_entries(afi, index, plist_name, |
2257 | NULL); | |
49a08bb0 | 2258 | |
3eca8715 NT |
2259 | /* If IPv4 prefix-list match rule is not present, |
2260 | * add this index to the IPv6 default route's trie | |
2261 | * node. | |
2262 | * Also, add this index to the trie nodes created | |
2263 | * for each of the prefix-entries within the IPv4 | |
2264 | * prefix-list, if the IPv4 prefix-list match rule | |
2265 | * is present. Else, add this index to the IPv4 | |
2266 | * default route's trie node. | |
2267 | */ | |
2268 | if (!route_map_is_ip_pfx_list_rule_present(index)) | |
49a08bb0 NT |
2269 | route_map_pfx_table_add_default(afi, index); |
2270 | ||
3eca8715 | 2271 | route_map_add_plist_entries(AFI_IP, index, NULL, NULL); |
49a08bb0 NT |
2272 | } |
2273 | } | |
2274 | } | |
2275 | ||
2276 | /* | |
2277 | * This function handles the cases where a route-map index and | |
2278 | * prefix-list is added/removed. | |
2279 | * It updates the prefix-table of the route-map accordingly. | |
2280 | */ | |
2d26f094 NT |
2281 | static void route_map_pfx_tbl_update(route_map_event_t event, |
2282 | struct route_map_index *index, afi_t afi, | |
2283 | const char *plist_name) | |
49a08bb0 NT |
2284 | { |
2285 | struct route_map *rmap = NULL; | |
2286 | ||
2287 | if (!index) | |
2288 | return; | |
2289 | ||
2290 | if (event == RMAP_EVENT_INDEX_ADDED) { | |
2291 | route_map_pfx_table_add_default(AFI_IP, index); | |
2292 | route_map_pfx_table_add_default(AFI_IP6, index); | |
2293 | return; | |
2294 | } | |
2295 | ||
2296 | if (event == RMAP_EVENT_INDEX_DELETED) { | |
2297 | route_map_pfx_table_del_default(AFI_IP, index); | |
2298 | route_map_pfx_table_del_default(AFI_IP6, index); | |
2299 | ||
2d26f094 | 2300 | if ((index->map->head == NULL) && (index->map->tail == NULL)) { |
49a08bb0 NT |
2301 | rmap = index->map; |
2302 | ||
2303 | if (rmap->ipv4_prefix_table) { | |
2304 | route_table_finish(rmap->ipv4_prefix_table); | |
2305 | rmap->ipv4_prefix_table = NULL; | |
2306 | } | |
2307 | ||
2308 | if (rmap->ipv6_prefix_table) { | |
2309 | route_table_finish(rmap->ipv6_prefix_table); | |
2310 | rmap->ipv6_prefix_table = NULL; | |
2311 | } | |
2312 | } | |
2313 | return; | |
2314 | } | |
2315 | ||
2316 | /* Handle prefix-list match rule addition/deletion. | |
2317 | */ | |
2d26f094 | 2318 | route_map_trie_update(afi, event, index, plist_name); |
49a08bb0 NT |
2319 | } |
2320 | ||
2321 | /* | |
2322 | * This function handles the cases where a new prefix-entry is added to | |
2323 | * a prefix-list or, an existing prefix-entry is removed from the prefix-list. | |
2324 | * It updates the prefix-table of the route-map accordingly. | |
2325 | */ | |
2d26f094 NT |
2326 | static void route_map_pentry_update(route_map_event_t event, |
2327 | const char *plist_name, | |
2328 | struct route_map_index *index, | |
2329 | struct prefix_list_entry *pentry) | |
49a08bb0 NT |
2330 | { |
2331 | struct prefix_list *plist = NULL; | |
2332 | afi_t afi; | |
2333 | unsigned char family = pentry->prefix.family; | |
2334 | ||
2335 | if (family == AF_INET) { | |
2336 | afi = AFI_IP; | |
2337 | plist = prefix_list_lookup(AFI_IP, plist_name); | |
2338 | } else { | |
2339 | afi = AFI_IP6; | |
2340 | plist = prefix_list_lookup(AFI_IP6, plist_name); | |
2341 | } | |
2342 | ||
2343 | if (event == RMAP_EVENT_PLIST_ADDED) { | |
3eca8715 NT |
2344 | if (afi == AFI_IP) { |
2345 | if (!route_map_is_ipv6_pfx_list_rule_present(index)) | |
2346 | route_map_add_plist_entries(afi, index, | |
2347 | plist_name, pentry); | |
49a08bb0 | 2348 | } else { |
3eca8715 NT |
2349 | if (!route_map_is_ip_pfx_list_rule_present(index)) |
2350 | route_map_add_plist_entries(afi, index, | |
2351 | plist_name, pentry); | |
49a08bb0 NT |
2352 | } |
2353 | } else if (event == RMAP_EVENT_PLIST_DELETED) { | |
2354 | route_map_del_plist_entries(afi, index, plist_name, pentry); | |
2355 | ||
2356 | if (plist->count == 1) { | |
2357 | if (afi == AFI_IP) { | |
3eca8715 NT |
2358 | if (!route_map_is_ipv6_pfx_list_rule_present( |
2359 | index)) | |
49a08bb0 NT |
2360 | route_map_pfx_table_add_default(afi, |
2361 | index); | |
2362 | } else { | |
3eca8715 NT |
2363 | if (!route_map_is_ip_pfx_list_rule_present( |
2364 | index)) | |
49a08bb0 NT |
2365 | route_map_pfx_table_add_default(afi, |
2366 | index); | |
2367 | } | |
2368 | } | |
2369 | } | |
2370 | } | |
2371 | ||
1ac88792 | 2372 | static void route_map_pentry_process_dependency(struct hash_bucket *bucket, |
2d26f094 | 2373 | void *data) |
49a08bb0 NT |
2374 | { |
2375 | char *rmap_name = NULL; | |
2376 | struct route_map *rmap = NULL; | |
2377 | struct route_map_index *index = NULL; | |
2378 | struct route_map_rule_list *match_list = NULL; | |
2379 | struct route_map_rule *match = NULL; | |
2380 | struct route_map_dep_data *dep_data = NULL; | |
2381 | struct route_map_pentry_dep *pentry_dep = | |
2d26f094 | 2382 | (struct route_map_pentry_dep *)data; |
49a08bb0 NT |
2383 | unsigned char family = pentry_dep->pentry->prefix.family; |
2384 | ||
1ac88792 | 2385 | dep_data = (struct route_map_dep_data *)bucket->data; |
49a08bb0 NT |
2386 | if (!dep_data) |
2387 | return; | |
2388 | ||
2389 | rmap_name = dep_data->rname; | |
2390 | rmap = route_map_lookup_by_name(rmap_name); | |
2391 | if (!rmap || !rmap->head) | |
2392 | return; | |
2393 | ||
2394 | for (index = rmap->head; index; index = index->next) { | |
2395 | match_list = &index->match_list; | |
2396 | ||
2397 | if (!match_list) | |
2398 | continue; | |
2399 | ||
2400 | for (match = match_list->head; match; match = match->next) { | |
2401 | if (strcmp(match->rule_str, pentry_dep->plist_name) | |
2d26f094 NT |
2402 | == 0) { |
2403 | if (IS_RULE_IPv4_PREFIX_LIST(match->cmd->str) | |
2404 | && family == AF_INET) { | |
49a08bb0 | 2405 | route_map_pentry_update( |
2d26f094 NT |
2406 | pentry_dep->event, |
2407 | pentry_dep->plist_name, index, | |
2408 | pentry_dep->pentry); | |
819a23f9 | 2409 | } else if (IS_RULE_IPv6_PREFIX_LIST( |
2d26f094 NT |
2410 | match->cmd->str) |
2411 | && family == AF_INET6) { | |
49a08bb0 | 2412 | route_map_pentry_update( |
2d26f094 NT |
2413 | pentry_dep->event, |
2414 | pentry_dep->plist_name, index, | |
2415 | pentry_dep->pentry); | |
49a08bb0 NT |
2416 | } |
2417 | } | |
2418 | } | |
2419 | } | |
2420 | } | |
2421 | ||
2d26f094 NT |
2422 | void route_map_notify_pentry_dependencies(const char *affected_name, |
2423 | struct prefix_list_entry *pentry, | |
2424 | route_map_event_t event) | |
49a08bb0 NT |
2425 | { |
2426 | struct route_map_dep *dep = NULL; | |
2427 | struct hash *upd8_hash = NULL; | |
2428 | struct route_map_pentry_dep pentry_dep; | |
2429 | ||
2430 | if (!affected_name || !pentry) | |
2431 | return; | |
2432 | ||
2433 | upd8_hash = route_map_get_dep_hash(event); | |
2434 | if (!upd8_hash) | |
2435 | return; | |
2436 | ||
2437 | dep = (struct route_map_dep *)hash_get(upd8_hash, (void *)affected_name, | |
2438 | NULL); | |
2439 | if (dep) { | |
2440 | if (!dep->this_hash) | |
2441 | dep->this_hash = upd8_hash; | |
2442 | ||
2443 | memset(&pentry_dep, 0, sizeof(struct route_map_pentry_dep)); | |
2444 | pentry_dep.pentry = pentry; | |
2445 | pentry_dep.plist_name = affected_name; | |
2446 | pentry_dep.event = event; | |
2447 | ||
2448 | hash_iterate(dep->dep_rmap_hash, | |
2449 | route_map_pentry_process_dependency, | |
2450 | (void *)&pentry_dep); | |
2451 | } | |
2452 | } | |
2453 | ||
3bf1c917 | 2454 | /* Apply route map's each index to the object. |
2455 | ||
2456 | The matrix for a route-map looks like this: | |
2457 | (note, this includes the description for the "NEXT" | |
2458 | and "GOTO" frobs now | |
d62a17ae | 2459 | |
b68885f9 LK |
2460 | | Match | No Match | No op |
2461 | |-----------|--------------|------- | |
2462 | permit | action | cont | cont. | |
2463 | | | default:deny | default:permit | |
2464 | -------------------+----------------------- | |
2465 | | deny | cont | cont. | |
2466 | deny | | default:deny | default:permit | |
2467 | |-----------|--------------|-------- | |
d62a17ae | 2468 | |
fee0f4c6 | 2469 | action) |
2470 | -Apply Set statements, accept route | |
2471 | -If Call statement is present jump to the specified route-map, if it | |
d62a17ae | 2472 | denies the route we finish. |
fee0f4c6 | 2473 | -If NEXT is specified, goto NEXT statement |
2474 | -If GOTO is specified, goto the first clause where pref > nextpref | |
2475 | -If nothing is specified, do as Cisco and finish | |
2476 | deny) | |
2477 | -Route is denied by route-map. | |
2478 | cont) | |
2479 | -Goto Next index | |
d62a17ae | 2480 | |
3bf1c917 | 2481 | If we get no matches after we've processed all updates, then the route |
2482 | is dropped too. | |
d62a17ae | 2483 | |
fee0f4c6 | 2484 | Some notes on the new "CALL", "NEXT" and "GOTO" |
2485 | call WORD - If this clause is matched, then the set statements | |
d62a17ae | 2486 | are executed and then we jump to route-map 'WORD'. If |
2487 | this route-map denies the route, we finish, in other | |
2488 | case we | |
2489 | do whatever the exit policy (EXIT, NEXT or GOTO) tells. | |
3bf1c917 | 2490 | on-match next - If this clause is matched, then the set statements |
d62a17ae | 2491 | are executed and then we drop through to the next clause |
214d8a60 | 2492 | on-match goto n - If this clause is matched, then the set statements |
d62a17ae | 2493 | are executed and then we goto the nth clause, or the |
2494 | first clause greater than this. In order to ensure | |
2495 | route-maps *always* exit, you cannot jump backwards. | |
2496 | Sorry ;) | |
2497 | ||
3bf1c917 | 2498 | We need to make sure our route-map processing matches the above |
718e3744 | 2499 | */ |
c2125847 IR |
2500 | route_map_result_t route_map_apply_ext(struct route_map *map, |
2501 | const struct prefix *prefix, | |
2502 | void *match_object, void *set_object) | |
d62a17ae | 2503 | { |
2504 | static int recursion = 0; | |
b68885f9 LK |
2505 | enum route_map_cmd_result_t match_ret = RMAP_NOMATCH; |
2506 | route_map_result_t ret = RMAP_PERMITMATCH; | |
819a23f9 NT |
2507 | struct route_map_index *index = NULL; |
2508 | struct route_map_rule *set = NULL; | |
819a23f9 | 2509 | bool skip_match_clause = false; |
d62a17ae | 2510 | |
2511 | if (recursion > RMAP_RECURSION_LIMIT) { | |
040c7c3a | 2512 | flog_warn( |
450971aa | 2513 | EC_LIB_RMAP_RECURSION_LIMIT, |
d62a17ae | 2514 | "route-map recursion limit (%d) reached, discarding route", |
2515 | RMAP_RECURSION_LIMIT); | |
2516 | recursion = 0; | |
2517 | return RMAP_DENYMATCH; | |
2518 | } | |
2519 | ||
b68885f9 | 2520 | if (map == NULL || map->head == NULL) { |
e3ab8170 AD |
2521 | ret = RMAP_DENYMATCH; |
2522 | goto route_map_apply_end; | |
2523 | } | |
d62a17ae | 2524 | |
279b0607 | 2525 | map->applied++; |
819a23f9 | 2526 | |
2d26f094 NT |
2527 | if ((!map->optimization_disabled) |
2528 | && (map->ipv4_prefix_table || map->ipv6_prefix_table)) { | |
c2125847 | 2529 | index = route_map_get_index(map, prefix, match_object, |
819a23f9 NT |
2530 | (uint8_t *)&match_ret); |
2531 | if (index) { | |
284a6f5f | 2532 | index->applied++; |
819a23f9 NT |
2533 | if (rmap_debug) |
2534 | zlog_debug( | |
2dbe669b DA |
2535 | "Best match route-map: %s, sequence: %d for pfx: %pFX, result: %s", |
2536 | map->name, index->pref, prefix, | |
819a23f9 NT |
2537 | route_map_cmd_result_str(match_ret)); |
2538 | } else { | |
2539 | if (rmap_debug) | |
2d26f094 | 2540 | zlog_debug( |
2dbe669b DA |
2541 | "No best match sequence for pfx: %pFX in route-map: %s, result: %s", |
2542 | prefix, map->name, | |
2d26f094 | 2543 | route_map_cmd_result_str(match_ret)); |
819a23f9 NT |
2544 | /* |
2545 | * No index matches this prefix. Return deny unless, | |
2546 | * match_ret = RMAP_NOOP. | |
2547 | */ | |
2548 | if (match_ret == RMAP_NOOP) | |
2549 | ret = RMAP_PERMITMATCH; | |
2550 | else | |
2551 | ret = RMAP_DENYMATCH; | |
2552 | goto route_map_apply_end; | |
e3ab8170 | 2553 | } |
819a23f9 NT |
2554 | skip_match_clause = true; |
2555 | } else { | |
2556 | index = map->head; | |
2557 | } | |
2558 | ||
2559 | for (; index; index = index->next) { | |
a8f58eb6 | 2560 | if (!skip_match_clause) { |
00aef028 | 2561 | index->applied++; |
819a23f9 NT |
2562 | /* Apply this index. */ |
2563 | match_ret = route_map_apply_match(&index->match_list, | |
c2125847 | 2564 | prefix, match_object); |
819a23f9 NT |
2565 | if (rmap_debug) { |
2566 | zlog_debug( | |
2dbe669b DA |
2567 | "Route-map: %s, sequence: %d, prefix: %pFX, result: %s", |
2568 | map->name, index->pref, prefix, | |
819a23f9 NT |
2569 | route_map_cmd_result_str(match_ret)); |
2570 | } | |
2571 | } else | |
2572 | skip_match_clause = false; | |
2573 | ||
e3ab8170 | 2574 | |
d62a17ae | 2575 | /* Now we apply the matrix from above */ |
b68885f9 LK |
2576 | if (match_ret == RMAP_NOOP) |
2577 | /* | |
2578 | * Do not change the return value. Retain the previous | |
2579 | * return value. Previous values can be: | |
2580 | * 1)permitmatch (if a nomatch was never | |
2581 | * seen before in this route-map.) | |
2582 | * 2)denymatch (if a nomatch was seen earlier in one | |
2583 | * of the previous sequences) | |
2584 | */ | |
2585 | ||
2586 | /* | |
2587 | * 'cont' from matrix - continue to next route-map | |
2588 | * sequence | |
2589 | */ | |
d62a17ae | 2590 | continue; |
b68885f9 LK |
2591 | else if (match_ret == RMAP_NOMATCH) { |
2592 | ||
2593 | /* | |
2594 | * The return value is now changed to denymatch. | |
2595 | * So from here on out, even if we see more noops, | |
2596 | * we retain this return value and return this | |
2597 | * eventually if there are no matches. | |
2598 | */ | |
2599 | ret = RMAP_DENYMATCH; | |
2600 | ||
2601 | /* | |
2602 | * 'cont' from matrix - continue to next route-map | |
2603 | * sequence | |
2604 | */ | |
2605 | continue; | |
2606 | } else if (match_ret == RMAP_MATCH) { | |
d62a17ae | 2607 | if (index->type == RMAP_PERMIT) |
2608 | /* 'action' */ | |
2609 | { | |
b68885f9 LK |
2610 | /* Match succeeded, rmap is of type permit */ |
2611 | ret = RMAP_PERMITMATCH; | |
2612 | ||
d62a17ae | 2613 | /* permit+match must execute sets */ |
2614 | for (set = index->set_list.head; set; | |
2615 | set = set->next) | |
b68885f9 LK |
2616 | /* |
2617 | * set cmds return RMAP_OKAY or | |
2618 | * RMAP_ERROR. We do not care if | |
2619 | * set succeeded or not. So, ignore | |
2620 | * return code. | |
2621 | */ | |
1782514f | 2622 | (void)(*set->cmd->func_apply)( |
c2125847 | 2623 | set->value, prefix, set_object); |
d62a17ae | 2624 | |
2625 | /* Call another route-map if available */ | |
2626 | if (index->nextrm) { | |
2627 | struct route_map *nextrm = | |
2628 | route_map_lookup_by_name( | |
2629 | index->nextrm); | |
2630 | ||
2631 | if (nextrm) /* Target route-map found, | |
2632 | jump to it */ | |
2633 | { | |
2634 | recursion++; | |
c2125847 IR |
2635 | ret = route_map_apply_ext( |
2636 | nextrm, prefix, | |
2637 | match_object, | |
2638 | set_object); | |
d62a17ae | 2639 | recursion--; |
2640 | } | |
2641 | ||
2642 | /* If nextrm returned 'deny', finish. */ | |
2643 | if (ret == RMAP_DENYMATCH) | |
e3ab8170 | 2644 | goto route_map_apply_end; |
d62a17ae | 2645 | } |
2646 | ||
2647 | switch (index->exitpolicy) { | |
2648 | case RMAP_EXIT: | |
e3ab8170 | 2649 | goto route_map_apply_end; |
d62a17ae | 2650 | case RMAP_NEXT: |
2651 | continue; | |
2652 | case RMAP_GOTO: { | |
2653 | /* Find the next clause to jump to */ | |
2654 | struct route_map_index *next = | |
2655 | index->next; | |
2656 | int nextpref = index->nextpref; | |
2657 | ||
2658 | while (next && next->pref < nextpref) { | |
2659 | index = next; | |
2660 | next = next->next; | |
2661 | } | |
2662 | if (next == NULL) { | |
2663 | /* No clauses match! */ | |
e3ab8170 | 2664 | goto route_map_apply_end; |
d62a17ae | 2665 | } |
2666 | } | |
2667 | } | |
2668 | } else if (index->type == RMAP_DENY) | |
2669 | /* 'deny' */ | |
2670 | { | |
e3ab8170 AD |
2671 | ret = RMAP_DENYMATCH; |
2672 | goto route_map_apply_end; | |
d62a17ae | 2673 | } |
2674 | } | |
2675 | } | |
e3ab8170 AD |
2676 | |
2677 | route_map_apply_end: | |
2dbe669b DA |
2678 | if (rmap_debug) |
2679 | zlog_debug("Route-map: %s, prefix: %pFX, result: %s", | |
2680 | (map ? map->name : "null"), prefix, | |
e3ab8170 | 2681 | route_map_result_str(ret)); |
e3ab8170 AD |
2682 | |
2683 | return (ret); | |
d62a17ae | 2684 | } |
2685 | ||
2686 | void route_map_add_hook(void (*func)(const char *)) | |
2687 | { | |
2688 | route_map_master.add_hook = func; | |
2689 | } | |
2690 | ||
2691 | void route_map_delete_hook(void (*func)(const char *)) | |
2692 | { | |
2693 | route_map_master.delete_hook = func; | |
2694 | } | |
2695 | ||
097b5973 | 2696 | void route_map_event_hook(void (*func)(const char *name)) |
d62a17ae | 2697 | { |
2698 | route_map_master.event_hook = func; | |
718e3744 | 2699 | } |
2700 | ||
518f0eb1 | 2701 | /* Routines for route map dependency lists and dependency processing */ |
74df8d6d | 2702 | static bool route_map_rmap_hash_cmp(const void *p1, const void *p2) |
518f0eb1 | 2703 | { |
e2c8d6ce NT |
2704 | return strcmp(((const struct route_map_dep_data *)p1)->rname, |
2705 | ((const struct route_map_dep_data *)p2)->rname) | |
2706 | == 0; | |
518f0eb1 DS |
2707 | } |
2708 | ||
74df8d6d | 2709 | static bool route_map_dep_hash_cmp(const void *p1, const void *p2) |
518f0eb1 DS |
2710 | { |
2711 | ||
d62a17ae | 2712 | return (strcmp(((const struct route_map_dep *)p1)->dep_name, |
2713 | (const char *)p2) | |
2714 | == 0); | |
518f0eb1 DS |
2715 | } |
2716 | ||
e3b78da8 | 2717 | static void route_map_clear_reference(struct hash_bucket *bucket, void *arg) |
518f0eb1 | 2718 | { |
e2c8d6ce NT |
2719 | struct route_map_dep *dep = bucket->data; |
2720 | struct route_map_dep_data *dep_data = NULL, tmp_dep_data; | |
518f0eb1 | 2721 | |
db8db580 DS |
2722 | memset(&tmp_dep_data, 0, sizeof(struct route_map_dep_data)); |
2723 | tmp_dep_data.rname = arg; | |
2724 | dep_data = hash_release(dep->dep_rmap_hash, &tmp_dep_data); | |
2725 | if (dep_data) { | |
af87aff6 DS |
2726 | if (rmap_debug) |
2727 | zlog_debug("Clearing reference for %s to %s count: %d", | |
2728 | dep->dep_name, tmp_dep_data.rname, | |
2729 | dep_data->refcnt); | |
2730 | ||
db8db580 DS |
2731 | XFREE(MTYPE_ROUTE_MAP_NAME, dep_data->rname); |
2732 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, dep_data); | |
2733 | } | |
2734 | if (!dep->dep_rmap_hash->count) { | |
2735 | dep = hash_release(dep->this_hash, (void *)dep->dep_name); | |
2736 | hash_free(dep->dep_rmap_hash); | |
2737 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
2738 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
518f0eb1 | 2739 | } |
d62a17ae | 2740 | } |
2741 | ||
2742 | static void route_map_clear_all_references(char *rmap_name) | |
2743 | { | |
2744 | int i; | |
2745 | ||
af87aff6 DS |
2746 | if (rmap_debug) |
2747 | zlog_debug("Clearing references for %s", rmap_name); | |
2748 | ||
d62a17ae | 2749 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
2750 | hash_iterate(route_map_dep_hash[i], route_map_clear_reference, | |
2751 | (void *)rmap_name); | |
518f0eb1 | 2752 | } |
518f0eb1 DS |
2753 | } |
2754 | ||
e2c8d6ce NT |
2755 | static unsigned int route_map_dep_data_hash_make_key(const void *p) |
2756 | { | |
2757 | const struct route_map_dep_data *dep_data = p; | |
2758 | ||
2759 | return string_hash_make(dep_data->rname); | |
2760 | } | |
2761 | ||
d62a17ae | 2762 | static void *route_map_dep_hash_alloc(void *p) |
518f0eb1 | 2763 | { |
d62a17ae | 2764 | char *dep_name = (char *)p; |
2765 | struct route_map_dep *dep_entry; | |
2766 | ||
2767 | dep_entry = XCALLOC(MTYPE_ROUTE_MAP_DEP, sizeof(struct route_map_dep)); | |
2768 | dep_entry->dep_name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
996c9314 | 2769 | dep_entry->dep_rmap_hash = |
e2c8d6ce | 2770 | hash_create_size(8, route_map_dep_data_hash_make_key, |
996c9314 | 2771 | route_map_rmap_hash_cmp, "Route Map Dep Hash"); |
d62a17ae | 2772 | dep_entry->this_hash = NULL; |
2773 | ||
e2c8d6ce | 2774 | return dep_entry; |
d62a17ae | 2775 | } |
518f0eb1 | 2776 | |
d62a17ae | 2777 | static void *route_map_name_hash_alloc(void *p) |
2778 | { | |
e2c8d6ce NT |
2779 | struct route_map_dep_data *dep_data = NULL, *tmp_dep_data = NULL; |
2780 | ||
2781 | dep_data = XCALLOC(MTYPE_ROUTE_MAP_DEP_DATA, | |
2782 | sizeof(struct route_map_dep_data)); | |
2783 | tmp_dep_data = p; | |
2784 | dep_data->rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, tmp_dep_data->rname); | |
2785 | return dep_data; | |
518f0eb1 DS |
2786 | } |
2787 | ||
d8b87afe | 2788 | static unsigned int route_map_dep_hash_make_key(const void *p) |
518f0eb1 | 2789 | { |
d62a17ae | 2790 | return (string_hash_make((char *)p)); |
2791 | } | |
518f0eb1 | 2792 | |
e3b78da8 | 2793 | static void route_map_print_dependency(struct hash_bucket *bucket, void *data) |
d62a17ae | 2794 | { |
e2c8d6ce NT |
2795 | struct route_map_dep_data *dep_data = bucket->data; |
2796 | char *rmap_name = dep_data->rname; | |
2797 | char *dep_name = data; | |
518f0eb1 | 2798 | |
15569c58 | 2799 | zlog_debug("%s: Dependency for %s: %s", __func__, dep_name, rmap_name); |
518f0eb1 DS |
2800 | } |
2801 | ||
d62a17ae | 2802 | static int route_map_dep_update(struct hash *dephash, const char *dep_name, |
2803 | const char *rmap_name, route_map_event_t type) | |
518f0eb1 | 2804 | { |
d62a17ae | 2805 | struct route_map_dep *dep = NULL; |
d62a17ae | 2806 | char *dname, *rname; |
2807 | int ret = 0; | |
e2c8d6ce NT |
2808 | struct route_map_dep_data *dep_data = NULL, *ret_dep_data = NULL; |
2809 | struct route_map_dep_data tmp_dep_data; | |
d62a17ae | 2810 | |
2811 | dname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, dep_name); | |
2812 | rname = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap_name); | |
2813 | ||
2814 | switch (type) { | |
2815 | case RMAP_EVENT_PLIST_ADDED: | |
2816 | case RMAP_EVENT_CLIST_ADDED: | |
2817 | case RMAP_EVENT_ECLIST_ADDED: | |
2818 | case RMAP_EVENT_ASLIST_ADDED: | |
2819 | case RMAP_EVENT_LLIST_ADDED: | |
2820 | case RMAP_EVENT_CALL_ADDED: | |
2821 | case RMAP_EVENT_FILTER_ADDED: | |
2822 | if (rmap_debug) | |
e3ab8170 AD |
2823 | zlog_debug("Adding dependency for filter %s in route-map %s", |
2824 | dep_name, rmap_name); | |
d62a17ae | 2825 | dep = (struct route_map_dep *)hash_get( |
2826 | dephash, dname, route_map_dep_hash_alloc); | |
2827 | if (!dep) { | |
2828 | ret = -1; | |
2829 | goto out; | |
2830 | } | |
2831 | ||
2832 | if (!dep->this_hash) | |
2833 | dep->this_hash = dephash; | |
2834 | ||
e2c8d6ce NT |
2835 | memset(&tmp_dep_data, 0, sizeof(struct route_map_dep_data)); |
2836 | tmp_dep_data.rname = rname; | |
2837 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
2838 | if (!dep_data) | |
2839 | dep_data = hash_get(dep->dep_rmap_hash, &tmp_dep_data, | |
2840 | route_map_name_hash_alloc); | |
2841 | ||
2842 | dep_data->refcnt++; | |
d62a17ae | 2843 | break; |
2844 | case RMAP_EVENT_PLIST_DELETED: | |
2845 | case RMAP_EVENT_CLIST_DELETED: | |
2846 | case RMAP_EVENT_ECLIST_DELETED: | |
2847 | case RMAP_EVENT_ASLIST_DELETED: | |
2848 | case RMAP_EVENT_LLIST_DELETED: | |
2849 | case RMAP_EVENT_CALL_DELETED: | |
2850 | case RMAP_EVENT_FILTER_DELETED: | |
2851 | if (rmap_debug) | |
e3ab8170 AD |
2852 | zlog_debug("Deleting dependency for filter %s in route-map %s", |
2853 | dep_name, rmap_name); | |
d62a17ae | 2854 | dep = (struct route_map_dep *)hash_get(dephash, dname, NULL); |
2855 | if (!dep) { | |
2856 | goto out; | |
2857 | } | |
2858 | ||
e2c8d6ce NT |
2859 | memset(&tmp_dep_data, 0, sizeof(struct route_map_dep_data)); |
2860 | tmp_dep_data.rname = rname; | |
2861 | dep_data = hash_lookup(dep->dep_rmap_hash, &tmp_dep_data); | |
9149c635 DS |
2862 | /* |
2863 | * If dep_data is NULL then something has gone seriously | |
2864 | * wrong in route-map handling. Note it and prevent | |
2865 | * the crash. | |
2866 | */ | |
2867 | if (!dep_data) { | |
2868 | zlog_warn( | |
2869 | "route-map dependency for route-map %s: %s is not correct", | |
2870 | rmap_name, dep_name); | |
c415a4dc | 2871 | goto out; |
9149c635 | 2872 | } |
c415a4dc | 2873 | |
9149c635 | 2874 | dep_data->refcnt--; |
e2c8d6ce NT |
2875 | |
2876 | if (!dep_data->refcnt) { | |
2877 | ret_dep_data = hash_release(dep->dep_rmap_hash, | |
2878 | &tmp_dep_data); | |
2879 | if (ret_dep_data) { | |
2880 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2881 | ret_dep_data->rname); | |
2882 | XFREE(MTYPE_ROUTE_MAP_DEP_DATA, ret_dep_data); | |
2883 | } | |
2884 | } | |
d62a17ae | 2885 | |
2886 | if (!dep->dep_rmap_hash->count) { | |
2887 | dep = hash_release(dephash, dname); | |
2888 | hash_free(dep->dep_rmap_hash); | |
2889 | XFREE(MTYPE_ROUTE_MAP_NAME, dep->dep_name); | |
2890 | XFREE(MTYPE_ROUTE_MAP_DEP, dep); | |
d62a17ae | 2891 | } |
2892 | break; | |
ba1707ca DS |
2893 | case RMAP_EVENT_SET_ADDED: |
2894 | case RMAP_EVENT_SET_DELETED: | |
2895 | case RMAP_EVENT_SET_REPLACED: | |
2896 | case RMAP_EVENT_MATCH_ADDED: | |
2897 | case RMAP_EVENT_MATCH_DELETED: | |
2898 | case RMAP_EVENT_MATCH_REPLACED: | |
2899 | case RMAP_EVENT_INDEX_ADDED: | |
2900 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 2901 | break; |
2902 | } | |
2903 | ||
2904 | if (dep) { | |
2905 | if (rmap_debug) | |
2906 | hash_iterate(dep->dep_rmap_hash, | |
2907 | route_map_print_dependency, dname); | |
2908 | } | |
2909 | ||
2910 | out: | |
2911 | XFREE(MTYPE_ROUTE_MAP_NAME, rname); | |
2912 | XFREE(MTYPE_ROUTE_MAP_NAME, dname); | |
2913 | return ret; | |
2914 | } | |
2915 | ||
2916 | static struct hash *route_map_get_dep_hash(route_map_event_t event) | |
2917 | { | |
2918 | struct hash *upd8_hash = NULL; | |
2919 | ||
2920 | switch (event) { | |
2921 | case RMAP_EVENT_PLIST_ADDED: | |
2922 | case RMAP_EVENT_PLIST_DELETED: | |
2923 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_PLIST]; | |
2924 | break; | |
2925 | case RMAP_EVENT_CLIST_ADDED: | |
2926 | case RMAP_EVENT_CLIST_DELETED: | |
2927 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_CLIST]; | |
2928 | break; | |
2929 | case RMAP_EVENT_ECLIST_ADDED: | |
2930 | case RMAP_EVENT_ECLIST_DELETED: | |
2931 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ECLIST]; | |
2932 | break; | |
2933 | case RMAP_EVENT_ASLIST_ADDED: | |
2934 | case RMAP_EVENT_ASLIST_DELETED: | |
2935 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_ASPATH]; | |
2936 | break; | |
2937 | case RMAP_EVENT_LLIST_ADDED: | |
2938 | case RMAP_EVENT_LLIST_DELETED: | |
2939 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_LCLIST]; | |
2940 | break; | |
2941 | case RMAP_EVENT_CALL_ADDED: | |
2942 | case RMAP_EVENT_CALL_DELETED: | |
5ed2e47b | 2943 | case RMAP_EVENT_MATCH_ADDED: |
2944 | case RMAP_EVENT_MATCH_DELETED: | |
d62a17ae | 2945 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_RMAP]; |
2946 | break; | |
2947 | case RMAP_EVENT_FILTER_ADDED: | |
2948 | case RMAP_EVENT_FILTER_DELETED: | |
2949 | upd8_hash = route_map_dep_hash[ROUTE_MAP_DEP_FILTER]; | |
2950 | break; | |
ba1707ca DS |
2951 | /* |
2952 | * Should we actually be ignoring these? | |
2953 | * I am not sure but at this point in time, let | |
2954 | * us get them into this switch and we can peel | |
2955 | * them into the appropriate place in the future | |
2956 | */ | |
2957 | case RMAP_EVENT_SET_ADDED: | |
2958 | case RMAP_EVENT_SET_DELETED: | |
2959 | case RMAP_EVENT_SET_REPLACED: | |
2960 | case RMAP_EVENT_MATCH_REPLACED: | |
2961 | case RMAP_EVENT_INDEX_ADDED: | |
2962 | case RMAP_EVENT_INDEX_DELETED: | |
d62a17ae | 2963 | upd8_hash = NULL; |
2964 | break; | |
2965 | } | |
2966 | return (upd8_hash); | |
518f0eb1 DS |
2967 | } |
2968 | ||
e3b78da8 | 2969 | static void route_map_process_dependency(struct hash_bucket *bucket, void *data) |
518f0eb1 | 2970 | { |
e2c8d6ce NT |
2971 | struct route_map_dep_data *dep_data = NULL; |
2972 | char *rmap_name = NULL; | |
2973 | ||
2974 | dep_data = bucket->data; | |
2975 | rmap_name = dep_data->rname; | |
d62a17ae | 2976 | |
1fae5ff2 | 2977 | if (rmap_debug) |
e3ab8170 | 2978 | zlog_debug("Notifying %s of dependency", rmap_name); |
1fae5ff2 | 2979 | if (route_map_master.event_hook) |
097b5973 | 2980 | (*route_map_master.event_hook)(rmap_name); |
518f0eb1 DS |
2981 | } |
2982 | ||
d62a17ae | 2983 | void route_map_upd8_dependency(route_map_event_t type, const char *arg, |
2984 | const char *rmap_name) | |
518f0eb1 | 2985 | { |
d62a17ae | 2986 | struct hash *upd8_hash = NULL; |
518f0eb1 | 2987 | |
fdf823db | 2988 | if ((upd8_hash = route_map_get_dep_hash(type))) { |
d62a17ae | 2989 | route_map_dep_update(upd8_hash, arg, rmap_name, type); |
fdf823db NT |
2990 | |
2991 | if (type == RMAP_EVENT_CALL_ADDED) { | |
2992 | /* Execute hook. */ | |
2993 | if (route_map_master.add_hook) | |
2994 | (*route_map_master.add_hook)(rmap_name); | |
2995 | } else if (type == RMAP_EVENT_CALL_DELETED) { | |
2996 | /* Execute hook. */ | |
2997 | if (route_map_master.delete_hook) | |
2998 | (*route_map_master.delete_hook)(rmap_name); | |
2999 | } | |
3000 | } | |
518f0eb1 DS |
3001 | } |
3002 | ||
d62a17ae | 3003 | void route_map_notify_dependencies(const char *affected_name, |
3004 | route_map_event_t event) | |
518f0eb1 | 3005 | { |
d62a17ae | 3006 | struct route_map_dep *dep; |
3007 | struct hash *upd8_hash; | |
3008 | char *name; | |
3009 | ||
3010 | if (!affected_name) | |
3011 | return; | |
3012 | ||
3013 | name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, affected_name); | |
3014 | ||
3015 | if ((upd8_hash = route_map_get_dep_hash(event)) == NULL) { | |
3016 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
3017 | return; | |
518f0eb1 | 3018 | } |
d62a17ae | 3019 | |
3020 | dep = (struct route_map_dep *)hash_get(upd8_hash, name, NULL); | |
3021 | if (dep) { | |
3022 | if (!dep->this_hash) | |
3023 | dep->this_hash = upd8_hash; | |
3024 | ||
e3ab8170 AD |
3025 | if (rmap_debug) |
3026 | zlog_debug("Filter %s updated", dep->dep_name); | |
d62a17ae | 3027 | hash_iterate(dep->dep_rmap_hash, route_map_process_dependency, |
3028 | (void *)event); | |
3029 | } | |
3030 | ||
3031 | XFREE(MTYPE_ROUTE_MAP_NAME, name); | |
518f0eb1 DS |
3032 | } |
3033 | ||
718e3744 | 3034 | /* VTY related functions. */ |
1fa30509 DS |
3035 | static void clear_route_map_helper(struct route_map *map) |
3036 | { | |
3037 | struct route_map_index *index; | |
3038 | ||
3039 | map->applied_clear = map->applied; | |
3040 | for (index = map->head; index; index = index->next) | |
3041 | index->applied_clear = index->applied; | |
3042 | } | |
3043 | ||
3044 | DEFUN (rmap_clear_counters, | |
3045 | rmap_clear_counters_cmd, | |
3046 | "clear route-map counters [WORD]", | |
3047 | CLEAR_STR | |
3048 | "route-map information\n" | |
3049 | "counters associated with the specified route-map\n" | |
3050 | "route-map name\n") | |
3051 | { | |
3052 | int idx_word = 2; | |
3053 | struct route_map *map; | |
3054 | ||
3055 | const char *name = (argc == 3 ) ? argv[idx_word]->arg : NULL; | |
3056 | ||
3057 | if (name) { | |
3058 | map = route_map_lookup_by_name(name); | |
3059 | ||
3060 | if (map) | |
3061 | clear_route_map_helper(map); | |
3062 | else { | |
3063 | vty_out(vty, "%s: 'route-map %s' not found\n", | |
3064 | frr_protonameinst, name); | |
3065 | return CMD_SUCCESS; | |
3066 | } | |
3067 | } else { | |
3068 | for (map = route_map_master.head; map; map = map->next) | |
3069 | clear_route_map_helper(map); | |
3070 | } | |
3071 | ||
3072 | return CMD_SUCCESS; | |
3073 | ||
3074 | } | |
5510e83b | 3075 | |
6d2729e3 | 3076 | DEFUN (rmap_show_name, |
5510e83b | 3077 | rmap_show_name_cmd, |
856ed18a | 3078 | "show route-map [WORD] [json]", |
5510e83b | 3079 | SHOW_STR |
3080 | "route-map information\n" | |
856ed18a RW |
3081 | "route-map name\n" |
3082 | JSON_STR) | |
5510e83b | 3083 | { |
856ed18a RW |
3084 | bool uj = use_json(argc, argv); |
3085 | int idx = 0; | |
3086 | const char *name = NULL; | |
3087 | ||
3088 | if (argv_find(argv, argc, "WORD", &idx)) | |
3089 | name = argv[idx]->arg; | |
3090 | ||
3091 | return vty_show_route_map(vty, name, uj); | |
5510e83b | 3092 | } |
3093 | ||
4a2a09d0 | 3094 | DEFUN (rmap_show_unused, |
3095 | rmap_show_unused_cmd, | |
3096 | "show route-map-unused", | |
3097 | SHOW_STR | |
3098 | "unused route-map information\n") | |
3099 | { | |
3100 | return vty_show_unused_route_map(vty); | |
3101 | } | |
3102 | ||
e3ab8170 AD |
3103 | DEFUN (debug_rmap, |
3104 | debug_rmap_cmd, | |
3105 | "debug route-map", | |
3106 | DEBUG_STR | |
3107 | "Debug option set for route-maps\n") | |
3108 | { | |
3109 | rmap_debug = true; | |
3110 | return CMD_SUCCESS; | |
3111 | } | |
3112 | ||
3113 | DEFUN (no_debug_rmap, | |
3114 | no_debug_rmap_cmd, | |
3115 | "no debug route-map", | |
3116 | NO_STR | |
3117 | DEBUG_STR | |
3118 | "Debug option set for route-maps\n") | |
3119 | { | |
3120 | rmap_debug = false; | |
3121 | return CMD_SUCCESS; | |
3122 | } | |
3123 | ||
3124 | /* Debug node. */ | |
612c2c15 | 3125 | static int rmap_config_write_debug(struct vty *vty); |
62b346ee | 3126 | static struct cmd_node rmap_debug_node = { |
f4b8291f | 3127 | .name = "route-map debug", |
62b346ee DL |
3128 | .node = RMAP_DEBUG_NODE, |
3129 | .prompt = "", | |
612c2c15 | 3130 | .config_write = rmap_config_write_debug, |
62b346ee | 3131 | }; |
e3ab8170 | 3132 | |
718e3744 | 3133 | /* Configuration write function. */ |
e3ab8170 AD |
3134 | static int rmap_config_write_debug(struct vty *vty) |
3135 | { | |
3136 | int write = 0; | |
3137 | ||
3138 | if (rmap_debug) { | |
3139 | vty_out(vty, "debug route-map\n"); | |
3140 | write++; | |
3141 | } | |
3142 | ||
3143 | return write; | |
3144 | } | |
3145 | ||
dc9ffce8 CF |
3146 | /* Common route map rules */ |
3147 | ||
d62a17ae | 3148 | void *route_map_rule_tag_compile(const char *arg) |
dc9ffce8 | 3149 | { |
d62a17ae | 3150 | unsigned long int tmp; |
3151 | char *endptr; | |
3152 | route_tag_t *tag; | |
dc9ffce8 | 3153 | |
d62a17ae | 3154 | errno = 0; |
3155 | tmp = strtoul(arg, &endptr, 0); | |
3156 | if (arg[0] == '\0' || *endptr != '\0' || errno || tmp > ROUTE_TAG_MAX) | |
3157 | return NULL; | |
dc9ffce8 | 3158 | |
d62a17ae | 3159 | tag = XMALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(*tag)); |
3160 | *tag = tmp; | |
dc9ffce8 | 3161 | |
d62a17ae | 3162 | return tag; |
dc9ffce8 CF |
3163 | } |
3164 | ||
d62a17ae | 3165 | void route_map_rule_tag_free(void *rule) |
dc9ffce8 | 3166 | { |
d62a17ae | 3167 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
dc9ffce8 CF |
3168 | } |
3169 | ||
d62a17ae | 3170 | void route_map_finish(void) |
9df78e7c | 3171 | { |
d62a17ae | 3172 | int i; |
88711d8a DL |
3173 | struct route_map_rule_cmd_proxy *proxy; |
3174 | ||
3175 | /* these 2 hash tables have INIT_HASH initializers, so the "default" | |
3176 | * state is "initialized & empty" => fini() followed by init() to | |
3177 | * return to that same state | |
3178 | */ | |
3179 | while ((proxy = rmap_cmd_name_pop(rmap_match_cmds))) | |
3180 | (void)proxy; | |
3181 | rmap_cmd_name_fini(rmap_match_cmds); | |
3182 | rmap_cmd_name_init(rmap_match_cmds); | |
9df78e7c | 3183 | |
88711d8a DL |
3184 | while ((proxy = rmap_cmd_name_pop(rmap_set_cmds))) |
3185 | (void)proxy; | |
3186 | rmap_cmd_name_fini(rmap_set_cmds); | |
3187 | rmap_cmd_name_init(rmap_set_cmds); | |
9df78e7c | 3188 | |
8619629a DS |
3189 | /* |
3190 | * All protocols are setting these to NULL | |
3191 | * by default on shutdown( route_map_finish ) | |
3192 | * Why are we making them do this work? | |
3193 | */ | |
3194 | route_map_master.add_hook = NULL; | |
3195 | route_map_master.delete_hook = NULL; | |
3196 | route_map_master.event_hook = NULL; | |
3197 | ||
d62a17ae | 3198 | /* cleanup route_map */ |
3199 | while (route_map_master.head) { | |
3200 | struct route_map *map = route_map_master.head; | |
e4694d0d | 3201 | map->to_be_processed = false; |
d62a17ae | 3202 | route_map_delete(map); |
3203 | } | |
9df78e7c | 3204 | |
d62a17ae | 3205 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) { |
3206 | hash_free(route_map_dep_hash[i]); | |
3207 | route_map_dep_hash[i] = NULL; | |
3208 | } | |
9df78e7c | 3209 | |
d62a17ae | 3210 | hash_free(route_map_master_hash); |
3211 | route_map_master_hash = NULL; | |
9df78e7c DS |
3212 | } |
3213 | ||
4a2a09d0 | 3214 | /* Increment the use_count counter while attaching the route map */ |
3215 | void route_map_counter_increment(struct route_map *map) | |
3216 | { | |
3217 | if (map) | |
3218 | map->use_count++; | |
3219 | } | |
3220 | ||
3221 | /* Decrement the use_count counter while detaching the route map. */ | |
3222 | void route_map_counter_decrement(struct route_map *map) | |
3223 | { | |
3224 | if (map) { | |
3225 | if (map->use_count <= 0) | |
3226 | return; | |
3227 | map->use_count--; | |
3228 | } | |
3229 | } | |
3230 | ||
2d26f094 NT |
3231 | DEFUN_HIDDEN(show_route_map_pfx_tbl, show_route_map_pfx_tbl_cmd, |
3232 | "show route-map WORD prefix-table", | |
3233 | SHOW_STR | |
3234 | "route-map\n" | |
3235 | "route-map name\n" | |
3236 | "internal prefix-table\n") | |
3237 | { | |
3238 | const char *rmap_name = argv[2]->arg; | |
3239 | struct route_map *rmap = NULL; | |
3240 | struct route_table *rm_pfx_tbl4 = NULL; | |
3241 | struct route_table *rm_pfx_tbl6 = NULL; | |
3242 | struct route_node *rn = NULL, *prn = NULL; | |
3243 | struct list *rmap_index_list = NULL; | |
3244 | struct listnode *ln = NULL, *nln = NULL; | |
3245 | struct route_map_index *index = NULL; | |
2d26f094 NT |
3246 | uint8_t len = 54; |
3247 | ||
3248 | vty_out(vty, "%s:\n", frr_protonameinst); | |
3249 | rmap = route_map_lookup_by_name(rmap_name); | |
3250 | if (rmap) { | |
3251 | rm_pfx_tbl4 = rmap->ipv4_prefix_table; | |
3252 | if (rm_pfx_tbl4) { | |
3253 | vty_out(vty, "\n%s%43s%s\n", "IPv4 Prefix", "", | |
3254 | "Route-map Index List"); | |
3255 | vty_out(vty, "%s%39s%s\n", "_______________", "", | |
3256 | "____________________"); | |
3257 | for (rn = route_top(rm_pfx_tbl4); rn; | |
3258 | rn = route_next(rn)) { | |
b219dda1 | 3259 | vty_out(vty, " %pRN (%d)\n", rn, |
c10e14e9 | 3260 | route_node_get_lock_count(rn)); |
2d26f094 NT |
3261 | |
3262 | vty_out(vty, "(P) "); | |
3263 | prn = rn->parent; | |
3264 | if (prn) { | |
b219dda1 | 3265 | vty_out(vty, "%pRN\n", prn); |
2d26f094 NT |
3266 | } |
3267 | ||
3268 | vty_out(vty, "\n"); | |
3269 | rmap_index_list = (struct list *)rn->info; | |
3270 | if (!rmap_index_list | |
3271 | || !listcount(rmap_index_list)) | |
3272 | vty_out(vty, "%*s%s\n", len, "", "-"); | |
3273 | else | |
3274 | for (ALL_LIST_ELEMENTS(rmap_index_list, | |
3275 | ln, nln, | |
3276 | index)) { | |
3277 | vty_out(vty, "%*s%s seq %d\n", | |
3278 | len, "", | |
3279 | index->map->name, | |
3280 | index->pref); | |
3281 | } | |
3282 | vty_out(vty, "\n"); | |
3283 | } | |
3284 | } | |
3285 | ||
3286 | rm_pfx_tbl6 = rmap->ipv6_prefix_table; | |
3287 | if (rm_pfx_tbl6) { | |
3288 | vty_out(vty, "\n%s%43s%s\n", "IPv6 Prefix", "", | |
3289 | "Route-map Index List"); | |
3290 | vty_out(vty, "%s%39s%s\n", "_______________", "", | |
3291 | "____________________"); | |
3292 | for (rn = route_top(rm_pfx_tbl6); rn; | |
3293 | rn = route_next(rn)) { | |
b219dda1 | 3294 | vty_out(vty, " %pRN (%d)\n", rn, |
c10e14e9 | 3295 | route_node_get_lock_count(rn)); |
2d26f094 NT |
3296 | |
3297 | vty_out(vty, "(P) "); | |
3298 | prn = rn->parent; | |
3299 | if (prn) { | |
b219dda1 | 3300 | vty_out(vty, "%pRN\n", prn); |
2d26f094 NT |
3301 | } |
3302 | ||
3303 | vty_out(vty, "\n"); | |
3304 | rmap_index_list = (struct list *)rn->info; | |
3305 | if (!rmap_index_list | |
3306 | || !listcount(rmap_index_list)) | |
3307 | vty_out(vty, "%*s%s\n", len, "", "-"); | |
3308 | else | |
3309 | for (ALL_LIST_ELEMENTS(rmap_index_list, | |
3310 | ln, nln, | |
3311 | index)) { | |
3312 | vty_out(vty, "%*s%s seq %d\n", | |
3313 | len, "", | |
3314 | index->map->name, | |
3315 | index->pref); | |
3316 | } | |
3317 | vty_out(vty, "\n"); | |
3318 | } | |
3319 | } | |
3320 | } | |
3321 | ||
3322 | vty_out(vty, "\n"); | |
3323 | return CMD_SUCCESS; | |
3324 | } | |
3325 | ||
718e3744 | 3326 | /* Initialization of route map vector. */ |
d62a17ae | 3327 | void route_map_init(void) |
718e3744 | 3328 | { |
d62a17ae | 3329 | int i; |
3330 | ||
d62a17ae | 3331 | route_map_master_hash = |
996c9314 | 3332 | hash_create_size(8, route_map_hash_key_make, route_map_hash_cmp, |
bd74dc61 | 3333 | "Route Map Master Hash"); |
d62a17ae | 3334 | |
3335 | for (i = 1; i < ROUTE_MAP_DEP_MAX; i++) | |
996c9314 LB |
3336 | route_map_dep_hash[i] = hash_create_size( |
3337 | 8, route_map_dep_hash_make_key, route_map_dep_hash_cmp, | |
3338 | "Route Map Dep Hash"); | |
b2575bc0 | 3339 | |
e3ab8170 AD |
3340 | rmap_debug = false; |
3341 | ||
2b3e4807 | 3342 | route_map_cli_init(); |
518f0eb1 | 3343 | |
2b3e4807 | 3344 | /* Install route map top node. */ |
612c2c15 | 3345 | install_node(&rmap_debug_node); |
e3ab8170 | 3346 | |
d62a17ae | 3347 | /* Install route map commands. */ |
e3ab8170 AD |
3348 | install_element(CONFIG_NODE, &debug_rmap_cmd); |
3349 | install_element(CONFIG_NODE, &no_debug_rmap_cmd); | |
3350 | ||
d62a17ae | 3351 | /* Install show command */ |
1fa30509 DS |
3352 | install_element(ENABLE_NODE, &rmap_clear_counters_cmd); |
3353 | ||
d62a17ae | 3354 | install_element(ENABLE_NODE, &rmap_show_name_cmd); |
4a2a09d0 | 3355 | install_element(ENABLE_NODE, &rmap_show_unused_cmd); |
82f97584 | 3356 | |
e3ab8170 AD |
3357 | install_element(ENABLE_NODE, &debug_rmap_cmd); |
3358 | install_element(ENABLE_NODE, &no_debug_rmap_cmd); | |
49a08bb0 | 3359 | |
2d26f094 | 3360 | install_element(ENABLE_NODE, &show_route_map_pfx_tbl_cmd); |
718e3744 | 3361 | } |