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1 | /* | |
2 | * BGP RPKI | |
3 | * Copyright (C) 2013 Michael Mester (m.mester@fu-berlin.de), for FU Berlin | |
4 | * Copyright (C) 2014-2017 Andreas Reuter (andreas.reuter@fu-berlin.de), for FU | |
5 | * Berlin | |
6 | * Copyright (C) 2016-2017 Colin Sames (colin.sames@haw-hamburg.de), for HAW | |
7 | * Hamburg | |
8 | * Copyright (C) 2017-2018 Marcel Röthke (marcel.roethke@haw-hamburg.de), | |
9 | * for HAW Hamburg | |
10 | * | |
11 | * This file is part of FRRouting. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the Free | |
15 | * Software Foundation; either version 2 of the License, or (at your option) | |
16 | * any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
19 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
20 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
21 | * more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License along | |
24 | * with this program; see the file COPYING; if not, write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
26 | */ | |
27 | ||
28 | /* If rtrlib compiled with ssh support, don`t fail build */ | |
29 | #define LIBSSH_LEGACY_0_4 | |
30 | ||
31 | #include <zebra.h> | |
32 | #include <pthread.h> | |
33 | #include <time.h> | |
34 | #include <stdbool.h> | |
35 | #include <stdlib.h> | |
36 | #include "prefix.h" | |
37 | #include "log.h" | |
38 | #include "command.h" | |
39 | #include "linklist.h" | |
40 | #include "memory.h" | |
41 | #include "thread.h" | |
42 | #include "filter.h" | |
43 | #include "bgpd/bgpd.h" | |
44 | #include "bgpd/bgp_table.h" | |
45 | #include "bgp_advertise.h" | |
46 | #include "bgpd/bgp_debug.h" | |
47 | #include "bgpd/bgp_attr.h" | |
48 | #include "bgpd/bgp_aspath.h" | |
49 | #include "bgpd/bgp_route.h" | |
50 | #include "lib/network.h" | |
51 | #include "lib/thread.h" | |
52 | #ifndef VTYSH_EXTRACT_PL | |
53 | #include "rtrlib/rtrlib.h" | |
54 | #endif | |
55 | #include "hook.h" | |
56 | #include "libfrr.h" | |
57 | #include "version.h" | |
58 | ||
59 | #ifndef VTYSH_EXTRACT_PL | |
60 | #include "bgpd/bgp_rpki_clippy.c" | |
61 | #endif | |
62 | ||
63 | DEFINE_MTYPE_STATIC(BGPD, BGP_RPKI_CACHE, "BGP RPKI Cache server") | |
64 | DEFINE_MTYPE_STATIC(BGPD, BGP_RPKI_CACHE_GROUP, "BGP RPKI Cache server group") | |
65 | ||
66 | #define RPKI_VALID 1 | |
67 | #define RPKI_NOTFOUND 2 | |
68 | #define RPKI_INVALID 3 | |
69 | ||
70 | #define POLLING_PERIOD_DEFAULT 3600 | |
71 | #define EXPIRE_INTERVAL_DEFAULT 7200 | |
72 | #define RETRY_INTERVAL_DEFAULT 600 | |
73 | ||
74 | #define RPKI_DEBUG(...) \ | |
75 | if (rpki_debug) { \ | |
76 | zlog_debug("RPKI: " __VA_ARGS__); \ | |
77 | } | |
78 | ||
79 | #define RPKI_OUTPUT_STRING "Control rpki specific settings\n" | |
80 | ||
81 | struct cache { | |
82 | enum { TCP, SSH } type; | |
83 | struct tr_socket *tr_socket; | |
84 | union { | |
85 | struct tr_tcp_config *tcp_config; | |
86 | struct tr_ssh_config *ssh_config; | |
87 | } tr_config; | |
88 | struct rtr_socket *rtr_socket; | |
89 | uint8_t preference; | |
90 | }; | |
91 | ||
92 | enum return_values { SUCCESS = 0, ERROR = -1 }; | |
93 | ||
94 | struct rpki_for_each_record_arg { | |
95 | struct vty *vty; | |
96 | unsigned int *prefix_amount; | |
97 | }; | |
98 | ||
99 | static int start(void); | |
100 | static void stop(void); | |
101 | static int reset(bool force); | |
102 | static struct rtr_mgr_group *get_connected_group(void); | |
103 | static void print_prefix_table(struct vty *vty); | |
104 | static void install_cli_commands(void); | |
105 | static int config_write(struct vty *vty); | |
106 | static void overwrite_exit_commands(void); | |
107 | static void free_cache(struct cache *cache); | |
108 | static struct rtr_mgr_group *get_groups(void); | |
109 | #if defined(FOUND_SSH) | |
110 | static int add_ssh_cache(const char *host, const unsigned int port, | |
111 | const char *username, const char *client_privkey_path, | |
112 | const char *client_pubkey_path, | |
113 | const char *server_pubkey_path, | |
114 | const uint8_t preference); | |
115 | #endif | |
116 | static struct rtr_socket *create_rtr_socket(struct tr_socket *tr_socket); | |
117 | static struct cache *find_cache(const uint8_t preference); | |
118 | static int add_tcp_cache(const char *host, const char *port, | |
119 | const uint8_t preference); | |
120 | static void print_record(const struct pfx_record *record, struct vty *vty); | |
121 | static int is_synchronized(void); | |
122 | static int is_running(void); | |
123 | static void route_match_free(void *rule); | |
124 | static enum route_map_cmd_result_t route_match(void *rule, | |
125 | const struct prefix *prefix, | |
126 | route_map_object_t type, | |
127 | void *object); | |
128 | static void *route_match_compile(const char *arg); | |
129 | static void revalidate_bgp_node(struct bgp_node *bgp_node, afi_t afi, | |
130 | safi_t safi); | |
131 | static void revalidate_all_routes(void); | |
132 | ||
133 | static struct rtr_mgr_config *rtr_config; | |
134 | static struct list *cache_list; | |
135 | static int rtr_is_running; | |
136 | static int rtr_is_stopping; | |
137 | static _Atomic int rtr_update_overflow; | |
138 | static int rpki_debug; | |
139 | static unsigned int polling_period; | |
140 | static unsigned int expire_interval; | |
141 | static unsigned int retry_interval; | |
142 | static int rpki_sync_socket_rtr; | |
143 | static int rpki_sync_socket_bgpd; | |
144 | ||
145 | static struct cmd_node rpki_node = {RPKI_NODE, "%s(config-rpki)# ", 1}; | |
146 | static const struct route_map_rule_cmd route_match_rpki_cmd = { | |
147 | "rpki", route_match, route_match_compile, route_match_free}; | |
148 | ||
149 | static void *malloc_wrapper(size_t size) | |
150 | { | |
151 | return XMALLOC(MTYPE_BGP_RPKI_CACHE, size); | |
152 | } | |
153 | ||
154 | static void *realloc_wrapper(void *ptr, size_t size) | |
155 | { | |
156 | return XREALLOC(MTYPE_BGP_RPKI_CACHE, ptr, size); | |
157 | } | |
158 | ||
159 | static void free_wrapper(void *ptr) | |
160 | { | |
161 | XFREE(MTYPE_BGP_RPKI_CACHE, ptr); | |
162 | } | |
163 | ||
164 | static void init_tr_socket(struct cache *cache) | |
165 | { | |
166 | if (cache->type == TCP) | |
167 | tr_tcp_init(cache->tr_config.tcp_config, | |
168 | cache->tr_socket); | |
169 | #if defined(FOUND_SSH) | |
170 | else | |
171 | tr_ssh_init(cache->tr_config.ssh_config, | |
172 | cache->tr_socket); | |
173 | #endif | |
174 | } | |
175 | ||
176 | static void free_tr_socket(struct cache *cache) | |
177 | { | |
178 | if (cache->type == TCP) | |
179 | tr_tcp_init(cache->tr_config.tcp_config, | |
180 | cache->tr_socket); | |
181 | #if defined(FOUND_SSH) | |
182 | else | |
183 | tr_ssh_init(cache->tr_config.ssh_config, | |
184 | cache->tr_socket); | |
185 | #endif | |
186 | } | |
187 | ||
188 | static int rpki_validate_prefix(struct peer *peer, struct attr *attr, | |
189 | const struct prefix *prefix); | |
190 | ||
191 | static void ipv6_addr_to_network_byte_order(const uint32_t *src, uint32_t *dest) | |
192 | { | |
193 | int i; | |
194 | ||
195 | for (i = 0; i < 4; i++) | |
196 | dest[i] = htonl(src[i]); | |
197 | } | |
198 | ||
199 | static void ipv6_addr_to_host_byte_order(const uint32_t *src, uint32_t *dest) | |
200 | { | |
201 | int i; | |
202 | ||
203 | for (i = 0; i < 4; i++) | |
204 | dest[i] = ntohl(src[i]); | |
205 | } | |
206 | ||
207 | static enum route_map_cmd_result_t route_match(void *rule, | |
208 | const struct prefix *prefix, | |
209 | route_map_object_t type, | |
210 | void *object) | |
211 | { | |
212 | int *rpki_status = rule; | |
213 | struct bgp_path_info *path; | |
214 | ||
215 | if (type == RMAP_BGP) { | |
216 | path = object; | |
217 | ||
218 | if (rpki_validate_prefix(path->peer, path->attr, prefix) | |
219 | == *rpki_status) { | |
220 | return RMAP_MATCH; | |
221 | } | |
222 | } | |
223 | return RMAP_NOMATCH; | |
224 | } | |
225 | ||
226 | static void *route_match_compile(const char *arg) | |
227 | { | |
228 | int *rpki_status; | |
229 | ||
230 | rpki_status = XMALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(int)); | |
231 | ||
232 | if (strcmp(arg, "valid") == 0) | |
233 | *rpki_status = RPKI_VALID; | |
234 | else if (strcmp(arg, "invalid") == 0) | |
235 | *rpki_status = RPKI_INVALID; | |
236 | else | |
237 | *rpki_status = RPKI_NOTFOUND; | |
238 | ||
239 | return rpki_status; | |
240 | } | |
241 | ||
242 | static void route_match_free(void *rule) | |
243 | { | |
244 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); | |
245 | } | |
246 | ||
247 | static struct rtr_socket *create_rtr_socket(struct tr_socket *tr_socket) | |
248 | { | |
249 | struct rtr_socket *rtr_socket = | |
250 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct rtr_socket)); | |
251 | rtr_socket->tr_socket = tr_socket; | |
252 | return rtr_socket; | |
253 | } | |
254 | ||
255 | static struct cache *find_cache(const uint8_t preference) | |
256 | { | |
257 | struct listnode *cache_node; | |
258 | struct cache *cache; | |
259 | ||
260 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, cache)) { | |
261 | if (cache->preference == preference) | |
262 | return cache; | |
263 | } | |
264 | return NULL; | |
265 | } | |
266 | ||
267 | static void print_record(const struct pfx_record *record, struct vty *vty) | |
268 | { | |
269 | char ip[INET6_ADDRSTRLEN]; | |
270 | ||
271 | lrtr_ip_addr_to_str(&record->prefix, ip, sizeof(ip)); | |
272 | vty_out(vty, "%-40s %3u - %3u %10u\n", ip, record->min_len, | |
273 | record->max_len, record->asn); | |
274 | } | |
275 | ||
276 | static void print_record_cb(const struct pfx_record *record, void *data) | |
277 | { | |
278 | struct rpki_for_each_record_arg *arg = data; | |
279 | struct vty *vty = arg->vty; | |
280 | ||
281 | (*arg->prefix_amount)++; | |
282 | ||
283 | print_record(record, vty); | |
284 | } | |
285 | ||
286 | static struct rtr_mgr_group *get_groups(void) | |
287 | { | |
288 | struct listnode *cache_node; | |
289 | struct rtr_mgr_group *rtr_mgr_groups; | |
290 | struct cache *cache; | |
291 | ||
292 | int group_count = listcount(cache_list); | |
293 | ||
294 | if (group_count == 0) | |
295 | return NULL; | |
296 | ||
297 | rtr_mgr_groups = XMALLOC(MTYPE_BGP_RPKI_CACHE_GROUP, | |
298 | group_count * sizeof(struct rtr_mgr_group)); | |
299 | ||
300 | size_t i = 0; | |
301 | ||
302 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, cache)) { | |
303 | rtr_mgr_groups[i].sockets = &cache->rtr_socket; | |
304 | rtr_mgr_groups[i].sockets_len = 1; | |
305 | rtr_mgr_groups[i].preference = cache->preference; | |
306 | ||
307 | init_tr_socket(cache); | |
308 | ||
309 | i++; | |
310 | } | |
311 | ||
312 | return rtr_mgr_groups; | |
313 | } | |
314 | ||
315 | inline int is_synchronized(void) | |
316 | { | |
317 | return rtr_is_running && rtr_mgr_conf_in_sync(rtr_config); | |
318 | } | |
319 | ||
320 | inline int is_running(void) | |
321 | { | |
322 | return rtr_is_running; | |
323 | } | |
324 | ||
325 | static struct prefix *pfx_record_to_prefix(struct pfx_record *record) | |
326 | { | |
327 | struct prefix *prefix = prefix_new(); | |
328 | ||
329 | prefix->prefixlen = record->min_len; | |
330 | ||
331 | if (record->prefix.ver == LRTR_IPV4) { | |
332 | prefix->family = AF_INET; | |
333 | prefix->u.prefix4.s_addr = htonl(record->prefix.u.addr4.addr); | |
334 | } else { | |
335 | prefix->family = AF_INET6; | |
336 | ipv6_addr_to_network_byte_order(record->prefix.u.addr6.addr, | |
337 | prefix->u.prefix6.s6_addr32); | |
338 | } | |
339 | ||
340 | return prefix; | |
341 | } | |
342 | ||
343 | static int bgpd_sync_callback(struct thread *thread) | |
344 | { | |
345 | struct bgp *bgp; | |
346 | struct listnode *node; | |
347 | struct prefix *prefix; | |
348 | struct pfx_record rec; | |
349 | ||
350 | thread_add_read(bm->master, bgpd_sync_callback, NULL, | |
351 | rpki_sync_socket_bgpd, NULL); | |
352 | ||
353 | if (atomic_load_explicit(&rtr_update_overflow, memory_order_seq_cst)) { | |
354 | while (read(rpki_sync_socket_bgpd, &rec, | |
355 | sizeof(struct pfx_record)) | |
356 | != -1) | |
357 | ; | |
358 | ||
359 | atomic_store_explicit(&rtr_update_overflow, 0, | |
360 | memory_order_seq_cst); | |
361 | revalidate_all_routes(); | |
362 | return 0; | |
363 | } | |
364 | ||
365 | int retval = | |
366 | read(rpki_sync_socket_bgpd, &rec, sizeof(struct pfx_record)); | |
367 | if (retval != sizeof(struct pfx_record)) { | |
368 | RPKI_DEBUG("Could not read from rpki_sync_socket_bgpd"); | |
369 | return retval; | |
370 | } | |
371 | prefix = pfx_record_to_prefix(&rec); | |
372 | ||
373 | afi_t afi = (rec.prefix.ver == LRTR_IPV4) ? AFI_IP : AFI_IP6; | |
374 | ||
375 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp)) { | |
376 | struct peer *peer; | |
377 | struct listnode *peer_listnode; | |
378 | ||
379 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, peer_listnode, peer)) { | |
380 | safi_t safi; | |
381 | ||
382 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
383 | if (!peer->bgp->rib[afi][safi]) | |
384 | continue; | |
385 | ||
386 | struct list *matches = list_new(); | |
387 | ||
388 | matches->del = | |
389 | (void (*)(void *))bgp_unlock_node; | |
390 | ||
391 | bgp_table_range_lookup( | |
392 | peer->bgp->rib[afi][safi], prefix, | |
393 | rec.max_len, matches); | |
394 | ||
395 | ||
396 | struct bgp_node *bgp_node; | |
397 | struct listnode *bgp_listnode; | |
398 | ||
399 | for (ALL_LIST_ELEMENTS_RO(matches, bgp_listnode, | |
400 | bgp_node)) | |
401 | revalidate_bgp_node(bgp_node, afi, | |
402 | safi); | |
403 | ||
404 | list_delete(&matches); | |
405 | } | |
406 | } | |
407 | } | |
408 | ||
409 | prefix_free(&prefix); | |
410 | return 0; | |
411 | } | |
412 | ||
413 | static void revalidate_bgp_node(struct bgp_node *bgp_node, afi_t afi, | |
414 | safi_t safi) | |
415 | { | |
416 | struct bgp_adj_in *ain; | |
417 | ||
418 | for (ain = bgp_node->adj_in; ain; ain = ain->next) { | |
419 | int ret; | |
420 | struct bgp_path_info *path = | |
421 | bgp_node_get_bgp_path_info(bgp_node); | |
422 | mpls_label_t *label = NULL; | |
423 | uint32_t num_labels = 0; | |
424 | ||
425 | if (path && path->extra) { | |
426 | label = path->extra->label; | |
427 | num_labels = path->extra->num_labels; | |
428 | } | |
429 | ret = bgp_update(ain->peer, &bgp_node->p, ain->addpath_rx_id, | |
430 | ain->attr, afi, safi, ZEBRA_ROUTE_BGP, | |
431 | BGP_ROUTE_NORMAL, NULL, label, num_labels, 1, | |
432 | NULL); | |
433 | ||
434 | if (ret < 0) | |
435 | return; | |
436 | } | |
437 | } | |
438 | ||
439 | static void revalidate_all_routes(void) | |
440 | { | |
441 | struct bgp *bgp; | |
442 | struct listnode *node; | |
443 | ||
444 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp)) { | |
445 | struct peer *peer; | |
446 | struct listnode *peer_listnode; | |
447 | ||
448 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, peer_listnode, peer)) { | |
449 | ||
450 | for (size_t i = 0; i < 2; i++) { | |
451 | safi_t safi; | |
452 | afi_t afi = (i == 0) ? AFI_IP : AFI_IP6; | |
453 | ||
454 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; | |
455 | safi++) { | |
456 | if (!peer->bgp->rib[afi][safi]) | |
457 | continue; | |
458 | ||
459 | bgp_soft_reconfig_in(peer, afi, safi); | |
460 | } | |
461 | } | |
462 | } | |
463 | } | |
464 | } | |
465 | ||
466 | static void rpki_update_cb_sync_rtr(struct pfx_table *p __attribute__((unused)), | |
467 | const struct pfx_record rec, | |
468 | const bool added __attribute__((unused))) | |
469 | { | |
470 | if (rtr_is_stopping | |
471 | || atomic_load_explicit(&rtr_update_overflow, memory_order_seq_cst)) | |
472 | return; | |
473 | ||
474 | int retval = | |
475 | write(rpki_sync_socket_rtr, &rec, sizeof(struct pfx_record)); | |
476 | if (retval == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)) | |
477 | atomic_store_explicit(&rtr_update_overflow, 1, | |
478 | memory_order_seq_cst); | |
479 | ||
480 | else if (retval != sizeof(struct pfx_record)) | |
481 | RPKI_DEBUG("Could not write to rpki_sync_socket_rtr"); | |
482 | } | |
483 | ||
484 | static void rpki_init_sync_socket(void) | |
485 | { | |
486 | int fds[2]; | |
487 | const char *msg; | |
488 | ||
489 | RPKI_DEBUG("initializing sync socket"); | |
490 | if (socketpair(PF_LOCAL, SOCK_DGRAM, 0, fds) != 0) { | |
491 | msg = "could not open rpki sync socketpair"; | |
492 | goto err; | |
493 | } | |
494 | rpki_sync_socket_rtr = fds[0]; | |
495 | rpki_sync_socket_bgpd = fds[1]; | |
496 | ||
497 | if (set_nonblocking(rpki_sync_socket_rtr) != 0) { | |
498 | msg = "could not set rpki_sync_socket_rtr to non blocking"; | |
499 | goto err; | |
500 | } | |
501 | ||
502 | if (set_nonblocking(rpki_sync_socket_bgpd) != 0) { | |
503 | msg = "could not set rpki_sync_socket_bgpd to non blocking"; | |
504 | goto err; | |
505 | } | |
506 | ||
507 | ||
508 | thread_add_read(bm->master, bgpd_sync_callback, NULL, | |
509 | rpki_sync_socket_bgpd, NULL); | |
510 | ||
511 | return; | |
512 | ||
513 | err: | |
514 | zlog_err("RPKI: %s", msg); | |
515 | abort(); | |
516 | ||
517 | } | |
518 | ||
519 | static int bgp_rpki_init(struct thread_master *master) | |
520 | { | |
521 | rpki_debug = 0; | |
522 | rtr_is_running = 0; | |
523 | rtr_is_stopping = 0; | |
524 | ||
525 | cache_list = list_new(); | |
526 | cache_list->del = (void (*)(void *)) & free_cache; | |
527 | ||
528 | polling_period = POLLING_PERIOD_DEFAULT; | |
529 | expire_interval = EXPIRE_INTERVAL_DEFAULT; | |
530 | retry_interval = RETRY_INTERVAL_DEFAULT; | |
531 | install_cli_commands(); | |
532 | rpki_init_sync_socket(); | |
533 | return 0; | |
534 | } | |
535 | ||
536 | static int bgp_rpki_fini(void) | |
537 | { | |
538 | stop(); | |
539 | list_delete(&cache_list); | |
540 | ||
541 | close(rpki_sync_socket_rtr); | |
542 | close(rpki_sync_socket_bgpd); | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | static int bgp_rpki_module_init(void) | |
548 | { | |
549 | lrtr_set_alloc_functions(malloc_wrapper, realloc_wrapper, free_wrapper); | |
550 | ||
551 | hook_register(frr_late_init, bgp_rpki_init); | |
552 | hook_register(frr_early_fini, &bgp_rpki_fini); | |
553 | ||
554 | return 0; | |
555 | } | |
556 | ||
557 | static int start(void) | |
558 | { | |
559 | int ret; | |
560 | ||
561 | rtr_is_stopping = 0; | |
562 | rtr_update_overflow = 0; | |
563 | ||
564 | if (list_isempty(cache_list)) { | |
565 | RPKI_DEBUG( | |
566 | "No caches were found in config. Prefix validation is off."); | |
567 | return ERROR; | |
568 | } | |
569 | RPKI_DEBUG("Init rtr_mgr."); | |
570 | int groups_len = listcount(cache_list); | |
571 | struct rtr_mgr_group *groups = get_groups(); | |
572 | ||
573 | RPKI_DEBUG("Polling period: %d", polling_period); | |
574 | ret = rtr_mgr_init(&rtr_config, groups, groups_len, polling_period, | |
575 | expire_interval, retry_interval, | |
576 | rpki_update_cb_sync_rtr, NULL, NULL, NULL); | |
577 | if (ret == RTR_ERROR) { | |
578 | RPKI_DEBUG("Init rtr_mgr failed."); | |
579 | return ERROR; | |
580 | } | |
581 | ||
582 | RPKI_DEBUG("Starting rtr_mgr."); | |
583 | ret = rtr_mgr_start(rtr_config); | |
584 | if (ret == RTR_ERROR) { | |
585 | RPKI_DEBUG("Starting rtr_mgr failed."); | |
586 | rtr_mgr_free(rtr_config); | |
587 | return ERROR; | |
588 | } | |
589 | rtr_is_running = 1; | |
590 | ||
591 | XFREE(MTYPE_BGP_RPKI_CACHE_GROUP, groups); | |
592 | ||
593 | return SUCCESS; | |
594 | } | |
595 | ||
596 | static void stop(void) | |
597 | { | |
598 | rtr_is_stopping = 1; | |
599 | if (rtr_is_running) { | |
600 | rtr_mgr_stop(rtr_config); | |
601 | rtr_mgr_free(rtr_config); | |
602 | rtr_is_running = 0; | |
603 | } | |
604 | } | |
605 | ||
606 | static int reset(bool force) | |
607 | { | |
608 | if (rtr_is_running && !force) | |
609 | return SUCCESS; | |
610 | ||
611 | RPKI_DEBUG("Resetting RPKI Session"); | |
612 | stop(); | |
613 | return start(); | |
614 | } | |
615 | ||
616 | static struct rtr_mgr_group *get_connected_group(void) | |
617 | { | |
618 | if (!cache_list || list_isempty(cache_list)) | |
619 | return NULL; | |
620 | ||
621 | return rtr_mgr_get_first_group(rtr_config); | |
622 | } | |
623 | ||
624 | static void print_prefix_table(struct vty *vty) | |
625 | { | |
626 | struct rpki_for_each_record_arg arg; | |
627 | ||
628 | unsigned int number_of_ipv4_prefixes = 0; | |
629 | unsigned int number_of_ipv6_prefixes = 0; | |
630 | struct rtr_mgr_group *group = get_connected_group(); | |
631 | ||
632 | arg.vty = vty; | |
633 | ||
634 | if (!group) | |
635 | return; | |
636 | ||
637 | struct pfx_table *pfx_table = group->sockets[0]->pfx_table; | |
638 | ||
639 | vty_out(vty, "RPKI/RTR prefix table\n"); | |
640 | vty_out(vty, "%-40s %s %s\n", "Prefix", "Prefix Length", "Origin-AS"); | |
641 | ||
642 | arg.prefix_amount = &number_of_ipv4_prefixes; | |
643 | pfx_table_for_each_ipv4_record(pfx_table, print_record_cb, &arg); | |
644 | ||
645 | arg.prefix_amount = &number_of_ipv6_prefixes; | |
646 | pfx_table_for_each_ipv6_record(pfx_table, print_record_cb, &arg); | |
647 | ||
648 | vty_out(vty, "Number of IPv4 Prefixes: %u\n", number_of_ipv4_prefixes); | |
649 | vty_out(vty, "Number of IPv6 Prefixes: %u\n", number_of_ipv6_prefixes); | |
650 | } | |
651 | ||
652 | static int rpki_validate_prefix(struct peer *peer, struct attr *attr, | |
653 | const struct prefix *prefix) | |
654 | { | |
655 | struct assegment *as_segment; | |
656 | as_t as_number = 0; | |
657 | struct lrtr_ip_addr ip_addr_prefix; | |
658 | enum pfxv_state result; | |
659 | char buf[BUFSIZ]; | |
660 | const char *prefix_string; | |
661 | ||
662 | if (!is_synchronized()) | |
663 | return 0; | |
664 | ||
665 | // No aspath means route comes from iBGP | |
666 | if (!attr->aspath || !attr->aspath->segments) { | |
667 | // Set own as number | |
668 | as_number = peer->bgp->as; | |
669 | } else { | |
670 | as_segment = attr->aspath->segments; | |
671 | // Find last AsSegment | |
672 | while (as_segment->next) | |
673 | as_segment = as_segment->next; | |
674 | ||
675 | if (as_segment->type == AS_SEQUENCE) { | |
676 | // Get rightmost asn | |
677 | as_number = as_segment->as[as_segment->length - 1]; | |
678 | } else if (as_segment->type == AS_CONFED_SEQUENCE | |
679 | || as_segment->type == AS_CONFED_SET) { | |
680 | // Set own as number | |
681 | as_number = peer->bgp->as; | |
682 | } else { | |
683 | // RFC says: "Take distinguished value NONE as asn" | |
684 | // which means state is unknown | |
685 | return RPKI_NOTFOUND; | |
686 | } | |
687 | } | |
688 | ||
689 | // Get the prefix in requested format | |
690 | switch (prefix->family) { | |
691 | case AF_INET: | |
692 | ip_addr_prefix.ver = LRTR_IPV4; | |
693 | ip_addr_prefix.u.addr4.addr = ntohl(prefix->u.prefix4.s_addr); | |
694 | break; | |
695 | ||
696 | case AF_INET6: | |
697 | ip_addr_prefix.ver = LRTR_IPV6; | |
698 | ipv6_addr_to_host_byte_order(prefix->u.prefix6.s6_addr32, | |
699 | ip_addr_prefix.u.addr6.addr); | |
700 | break; | |
701 | ||
702 | default: | |
703 | return 0; | |
704 | } | |
705 | ||
706 | // Do the actual validation | |
707 | rtr_mgr_validate(rtr_config, as_number, &ip_addr_prefix, | |
708 | prefix->prefixlen, &result); | |
709 | ||
710 | // Print Debug output | |
711 | prefix_string = prefix2str(prefix, buf, sizeof(buf)); | |
712 | switch (result) { | |
713 | case BGP_PFXV_STATE_VALID: | |
714 | RPKI_DEBUG( | |
715 | "Validating Prefix %s from asn %u Result: VALID", | |
716 | prefix_string, as_number); | |
717 | return RPKI_VALID; | |
718 | case BGP_PFXV_STATE_NOT_FOUND: | |
719 | RPKI_DEBUG( | |
720 | "Validating Prefix %s from asn %u Result: NOT FOUND", | |
721 | prefix_string, as_number); | |
722 | return RPKI_NOTFOUND; | |
723 | case BGP_PFXV_STATE_INVALID: | |
724 | RPKI_DEBUG( | |
725 | "Validating Prefix %s from asn %u Result: INVALID", | |
726 | prefix_string, as_number); | |
727 | return RPKI_INVALID; | |
728 | default: | |
729 | RPKI_DEBUG( | |
730 | "Validating Prefix %s from asn %u Result: CANNOT VALIDATE", | |
731 | prefix_string, as_number); | |
732 | break; | |
733 | } | |
734 | return 0; | |
735 | } | |
736 | ||
737 | static int add_cache(struct cache *cache) | |
738 | { | |
739 | uint8_t preference = cache->preference; | |
740 | struct rtr_mgr_group group; | |
741 | ||
742 | group.preference = preference; | |
743 | group.sockets_len = 1; | |
744 | group.sockets = &cache->rtr_socket; | |
745 | ||
746 | if (rtr_is_running) { | |
747 | init_tr_socket(cache); | |
748 | ||
749 | if (rtr_mgr_add_group(rtr_config, &group) != RTR_SUCCESS) { | |
750 | free_tr_socket(cache); | |
751 | return ERROR; | |
752 | } | |
753 | } | |
754 | ||
755 | listnode_add(cache_list, cache); | |
756 | ||
757 | return SUCCESS; | |
758 | } | |
759 | ||
760 | static int add_tcp_cache(const char *host, const char *port, | |
761 | const uint8_t preference) | |
762 | { | |
763 | struct rtr_socket *rtr_socket; | |
764 | struct tr_tcp_config *tcp_config = | |
765 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct tr_tcp_config)); | |
766 | struct tr_socket *tr_socket = | |
767 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct tr_socket)); | |
768 | struct cache *cache = | |
769 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct cache)); | |
770 | ||
771 | tcp_config->host = XSTRDUP(MTYPE_BGP_RPKI_CACHE, host); | |
772 | tcp_config->port = XSTRDUP(MTYPE_BGP_RPKI_CACHE, port); | |
773 | tcp_config->bindaddr = NULL; | |
774 | ||
775 | rtr_socket = create_rtr_socket(tr_socket); | |
776 | ||
777 | cache->type = TCP; | |
778 | cache->tr_socket = tr_socket; | |
779 | cache->tr_config.tcp_config = tcp_config; | |
780 | cache->rtr_socket = rtr_socket; | |
781 | cache->preference = preference; | |
782 | ||
783 | int ret = add_cache(cache); | |
784 | if (ret != SUCCESS) { | |
785 | free_cache(cache); | |
786 | } | |
787 | ||
788 | return ret; | |
789 | } | |
790 | ||
791 | #if defined(FOUND_SSH) | |
792 | static int add_ssh_cache(const char *host, const unsigned int port, | |
793 | const char *username, const char *client_privkey_path, | |
794 | const char *client_pubkey_path, | |
795 | const char *server_pubkey_path, | |
796 | const uint8_t preference) | |
797 | { | |
798 | struct tr_ssh_config *ssh_config = | |
799 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct tr_ssh_config)); | |
800 | struct cache *cache = | |
801 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct cache)); | |
802 | struct tr_socket *tr_socket = | |
803 | XMALLOC(MTYPE_BGP_RPKI_CACHE, sizeof(struct tr_socket)); | |
804 | struct rtr_socket *rtr_socket; | |
805 | ||
806 | ssh_config->port = port; | |
807 | ssh_config->host = XSTRDUP(MTYPE_BGP_RPKI_CACHE, host); | |
808 | ssh_config->bindaddr = NULL; | |
809 | ||
810 | ssh_config->username = XSTRDUP(MTYPE_BGP_RPKI_CACHE, username); | |
811 | ssh_config->client_privkey_path = | |
812 | XSTRDUP(MTYPE_BGP_RPKI_CACHE, client_privkey_path); | |
813 | ssh_config->server_hostkey_path = | |
814 | XSTRDUP(MTYPE_BGP_RPKI_CACHE, server_pubkey_path); | |
815 | ||
816 | rtr_socket = create_rtr_socket(tr_socket); | |
817 | ||
818 | cache->type = SSH; | |
819 | cache->tr_socket = tr_socket; | |
820 | cache->tr_config.ssh_config = ssh_config; | |
821 | cache->rtr_socket = rtr_socket; | |
822 | cache->preference = preference; | |
823 | ||
824 | int ret = add_cache(cache); | |
825 | if (ret != SUCCESS) { | |
826 | free_cache(cache); | |
827 | } | |
828 | ||
829 | return ret; | |
830 | } | |
831 | #endif | |
832 | ||
833 | static void free_cache(struct cache *cache) | |
834 | { | |
835 | if (cache->type == TCP) { | |
836 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->tr_config.tcp_config->host); | |
837 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->tr_config.tcp_config->port); | |
838 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->tr_config.tcp_config); | |
839 | } | |
840 | #if defined(FOUND_SSH) | |
841 | else { | |
842 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->tr_config.ssh_config->host); | |
843 | XFREE(MTYPE_BGP_RPKI_CACHE, | |
844 | cache->tr_config.ssh_config->username); | |
845 | XFREE(MTYPE_BGP_RPKI_CACHE, | |
846 | cache->tr_config.ssh_config->client_privkey_path); | |
847 | XFREE(MTYPE_BGP_RPKI_CACHE, | |
848 | cache->tr_config.ssh_config->server_hostkey_path); | |
849 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->tr_config.ssh_config); | |
850 | } | |
851 | #endif | |
852 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->tr_socket); | |
853 | XFREE(MTYPE_BGP_RPKI_CACHE, cache->rtr_socket); | |
854 | XFREE(MTYPE_BGP_RPKI_CACHE, cache); | |
855 | } | |
856 | ||
857 | static int config_write(struct vty *vty) | |
858 | { | |
859 | struct listnode *cache_node; | |
860 | struct cache *cache; | |
861 | ||
862 | if (listcount(cache_list)) { | |
863 | if (rpki_debug) | |
864 | vty_out(vty, "debug rpki\n"); | |
865 | ||
866 | vty_out(vty, "!\n"); | |
867 | vty_out(vty, "rpki\n"); | |
868 | vty_out(vty, " rpki polling_period %d\n", polling_period); | |
869 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, cache)) { | |
870 | switch (cache->type) { | |
871 | struct tr_tcp_config *tcp_config; | |
872 | #if defined(FOUND_SSH) | |
873 | struct tr_ssh_config *ssh_config; | |
874 | #endif | |
875 | case TCP: | |
876 | tcp_config = cache->tr_config.tcp_config; | |
877 | vty_out(vty, " rpki cache %s %s ", | |
878 | tcp_config->host, tcp_config->port); | |
879 | break; | |
880 | #if defined(FOUND_SSH) | |
881 | case SSH: | |
882 | ssh_config = cache->tr_config.ssh_config; | |
883 | vty_out(vty, " rpki cache %s %u %s %s %s ", | |
884 | ssh_config->host, ssh_config->port, | |
885 | ssh_config->username, | |
886 | ssh_config->client_privkey_path, | |
887 | ssh_config->server_hostkey_path != NULL | |
888 | ? ssh_config | |
889 | ->server_hostkey_path | |
890 | : " "); | |
891 | break; | |
892 | #endif | |
893 | default: | |
894 | break; | |
895 | } | |
896 | ||
897 | vty_out(vty, "preference %hhu\n", cache->preference); | |
898 | } | |
899 | vty_out(vty, " exit\n"); | |
900 | return 1; | |
901 | } else { | |
902 | return 0; | |
903 | } | |
904 | } | |
905 | ||
906 | DEFUN_NOSH (rpki, | |
907 | rpki_cmd, | |
908 | "rpki", | |
909 | "Enable rpki and enter rpki configuration mode\n") | |
910 | { | |
911 | vty->node = RPKI_NODE; | |
912 | return CMD_SUCCESS; | |
913 | } | |
914 | ||
915 | DEFUN (bgp_rpki_start, | |
916 | bgp_rpki_start_cmd, | |
917 | "rpki start", | |
918 | RPKI_OUTPUT_STRING | |
919 | "start rpki support\n") | |
920 | { | |
921 | if (listcount(cache_list) == 0) | |
922 | vty_out(vty, | |
923 | "Could not start rpki because no caches are configured\n"); | |
924 | ||
925 | if (!is_running()) { | |
926 | if (start() == ERROR) { | |
927 | RPKI_DEBUG("RPKI failed to start"); | |
928 | return CMD_WARNING; | |
929 | } | |
930 | } | |
931 | return CMD_SUCCESS; | |
932 | } | |
933 | ||
934 | DEFUN (bgp_rpki_stop, | |
935 | bgp_rpki_stop_cmd, | |
936 | "rpki stop", | |
937 | RPKI_OUTPUT_STRING | |
938 | "start rpki support\n") | |
939 | { | |
940 | if (is_running()) | |
941 | stop(); | |
942 | ||
943 | return CMD_SUCCESS; | |
944 | } | |
945 | ||
946 | DEFPY (rpki_polling_period, | |
947 | rpki_polling_period_cmd, | |
948 | "rpki polling_period (1-86400)$pp", | |
949 | RPKI_OUTPUT_STRING | |
950 | "Set polling period\n" | |
951 | "Polling period value\n") | |
952 | { | |
953 | polling_period = pp; | |
954 | return CMD_SUCCESS; | |
955 | } | |
956 | ||
957 | DEFUN (no_rpki_polling_period, | |
958 | no_rpki_polling_period_cmd, | |
959 | "no rpki polling_period", | |
960 | NO_STR | |
961 | RPKI_OUTPUT_STRING | |
962 | "Set polling period back to default\n") | |
963 | { | |
964 | polling_period = POLLING_PERIOD_DEFAULT; | |
965 | return CMD_SUCCESS; | |
966 | } | |
967 | ||
968 | DEFPY (rpki_expire_interval, | |
969 | rpki_expire_interval_cmd, | |
970 | "rpki expire_interval (600-172800)$tmp", | |
971 | RPKI_OUTPUT_STRING | |
972 | "Set expire interval\n" | |
973 | "Expire interval value\n") | |
974 | { | |
975 | if ((unsigned int)tmp >= polling_period) { | |
976 | expire_interval = tmp; | |
977 | return CMD_SUCCESS; | |
978 | } | |
979 | ||
980 | vty_out(vty, "%% Expiry interval must be polling period or larger\n"); | |
981 | return CMD_WARNING_CONFIG_FAILED; | |
982 | } | |
983 | ||
984 | DEFUN (no_rpki_expire_interval, | |
985 | no_rpki_expire_interval_cmd, | |
986 | "no rpki expire_interval", | |
987 | NO_STR | |
988 | RPKI_OUTPUT_STRING | |
989 | "Set expire interval back to default\n") | |
990 | { | |
991 | expire_interval = polling_period * 2; | |
992 | return CMD_SUCCESS; | |
993 | } | |
994 | ||
995 | DEFPY (rpki_retry_interval, | |
996 | rpki_retry_interval_cmd, | |
997 | "rpki retry_interval (1-7200)$tmp", | |
998 | RPKI_OUTPUT_STRING | |
999 | "Set retry interval\n" | |
1000 | "retry interval value\n") | |
1001 | { | |
1002 | retry_interval = tmp; | |
1003 | return CMD_SUCCESS; | |
1004 | } | |
1005 | ||
1006 | DEFUN (no_rpki_retry_interval, | |
1007 | no_rpki_retry_interval_cmd, | |
1008 | "no rpki retry_interval", | |
1009 | NO_STR | |
1010 | RPKI_OUTPUT_STRING | |
1011 | "Set retry interval back to default\n") | |
1012 | { | |
1013 | retry_interval = RETRY_INTERVAL_DEFAULT; | |
1014 | return CMD_SUCCESS; | |
1015 | } | |
1016 | ||
1017 | #if (CONFDATE > 20200901) | |
1018 | CPP_NOTICE("bgpd: time to remove rpki timeout") | |
1019 | CPP_NOTICE("bgpd: this includes rpki_timeout and rpki_synchronisation_timeout") | |
1020 | #endif | |
1021 | ||
1022 | DEFPY_HIDDEN (rpki_timeout, | |
1023 | rpki_timeout_cmd, | |
1024 | "rpki timeout (1-4294967295)$to_arg", | |
1025 | RPKI_OUTPUT_STRING | |
1026 | "Set timeout\n" | |
1027 | "Timeout value\n") | |
1028 | { | |
1029 | vty_out(vty, | |
1030 | "This config option is deprecated, and is scheduled for removal.\n"); | |
1031 | vty_out(vty, | |
1032 | "This functionality has also already been removed because it caused bugs and was pointless\n"); | |
1033 | return CMD_SUCCESS; | |
1034 | } | |
1035 | ||
1036 | DEFUN_HIDDEN (no_rpki_timeout, | |
1037 | no_rpki_timeout_cmd, | |
1038 | "no rpki timeout", | |
1039 | NO_STR | |
1040 | RPKI_OUTPUT_STRING | |
1041 | "Set timeout back to default\n") | |
1042 | { | |
1043 | vty_out(vty, | |
1044 | "This config option is deprecated, and is scheduled for removal.\n"); | |
1045 | vty_out(vty, | |
1046 | "This functionality has also already been removed because it caused bugs and was pointless\n"); | |
1047 | return CMD_SUCCESS; | |
1048 | } | |
1049 | ||
1050 | DEFPY_HIDDEN (rpki_synchronisation_timeout, | |
1051 | rpki_synchronisation_timeout_cmd, | |
1052 | "rpki initial-synchronisation-timeout (1-4294967295)$ito_arg", | |
1053 | RPKI_OUTPUT_STRING | |
1054 | "Set a timeout for the initial synchronisation of prefix validation data\n" | |
1055 | "Timeout value\n") | |
1056 | { | |
1057 | vty_out(vty, | |
1058 | "This config option is deprecated, and is scheduled for removal.\n"); | |
1059 | vty_out(vty, | |
1060 | "This functionality has also already been removed because it caused bugs and was pointless\n"); | |
1061 | return CMD_SUCCESS; | |
1062 | } | |
1063 | ||
1064 | DEFUN_HIDDEN (no_rpki_synchronisation_timeout, | |
1065 | no_rpki_synchronisation_timeout_cmd, | |
1066 | "no rpki initial-synchronisation-timeout", | |
1067 | NO_STR | |
1068 | RPKI_OUTPUT_STRING | |
1069 | "Set the initial synchronisation timeout back to default (30 sec.)\n") | |
1070 | { | |
1071 | vty_out(vty, | |
1072 | "This config option is deprecated, and is scheduled for removal.\n"); | |
1073 | vty_out(vty, | |
1074 | "This functionality has also already been removed because it caused bugs and was pointless\n"); | |
1075 | return CMD_SUCCESS; | |
1076 | } | |
1077 | ||
1078 | DEFPY (rpki_cache, | |
1079 | rpki_cache_cmd, | |
1080 | "rpki cache <A.B.C.D|WORD>" | |
1081 | "<TCPPORT|(1-65535)$sshport SSH_UNAME SSH_PRIVKEY SSH_PUBKEY [SERVER_PUBKEY]> " | |
1082 | "preference (1-255)", | |
1083 | RPKI_OUTPUT_STRING | |
1084 | "Install a cache server to current group\n" | |
1085 | "IP address of cache server\n Hostname of cache server\n" | |
1086 | "TCP port number\n" | |
1087 | "SSH port number\n" | |
1088 | "SSH user name\n" | |
1089 | "Path to own SSH private key\n" | |
1090 | "Path to own SSH public key\n" | |
1091 | "Path to Public key of cache server\n" | |
1092 | "Preference of the cache server\n" | |
1093 | "Preference value\n") | |
1094 | { | |
1095 | int return_value; | |
1096 | struct listnode *cache_node; | |
1097 | struct cache *current_cache; | |
1098 | ||
1099 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, current_cache)) { | |
1100 | if (current_cache->preference == preference) { | |
1101 | vty_out(vty, | |
1102 | "Cache with preference %ld is already configured\n", | |
1103 | preference); | |
1104 | return CMD_WARNING; | |
1105 | } | |
1106 | } | |
1107 | ||
1108 | ||
1109 | // use ssh connection | |
1110 | if (ssh_uname) { | |
1111 | #if defined(FOUND_SSH) | |
1112 | return_value = | |
1113 | add_ssh_cache(cache, sshport, ssh_uname, ssh_privkey, | |
1114 | ssh_pubkey, server_pubkey, preference); | |
1115 | #else | |
1116 | return_value = SUCCESS; | |
1117 | vty_out(vty, | |
1118 | "ssh sockets are not supported. " | |
1119 | "Please recompile rtrlib and frr with ssh support. " | |
1120 | "If you want to use it\n"); | |
1121 | #endif | |
1122 | } else { // use tcp connection | |
1123 | return_value = add_tcp_cache(cache, tcpport, preference); | |
1124 | } | |
1125 | ||
1126 | if (return_value == ERROR) { | |
1127 | vty_out(vty, "Could not create new rpki cache\n"); | |
1128 | return CMD_WARNING; | |
1129 | } | |
1130 | ||
1131 | return CMD_SUCCESS; | |
1132 | } | |
1133 | ||
1134 | DEFPY (no_rpki_cache, | |
1135 | no_rpki_cache_cmd, | |
1136 | "no rpki cache <A.B.C.D|WORD> <TCPPORT|(1-65535)$sshport> preference (1-255)$preference", | |
1137 | NO_STR | |
1138 | RPKI_OUTPUT_STRING | |
1139 | "Remove a cache server\n" | |
1140 | "IP address of cache server\n Hostname of cache server\n" | |
1141 | "TCP port number\n" | |
1142 | "SSH port number\n" | |
1143 | "Preference of the cache server\n" | |
1144 | "Preference value\n") | |
1145 | { | |
1146 | struct cache *cache_p = find_cache(preference); | |
1147 | ||
1148 | if (!cache_p) { | |
1149 | vty_out(vty, "Could not find cache %ld\n", preference); | |
1150 | return CMD_WARNING; | |
1151 | } | |
1152 | ||
1153 | if (rtr_is_running && listcount(cache_list) == 1) { | |
1154 | stop(); | |
1155 | } else if (rtr_is_running) { | |
1156 | if (rtr_mgr_remove_group(rtr_config, preference) == RTR_ERROR) { | |
1157 | vty_out(vty, "Could not remove cache %ld", preference); | |
1158 | ||
1159 | vty_out(vty, "\n"); | |
1160 | return CMD_WARNING; | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | listnode_delete(cache_list, cache_p); | |
1165 | free_cache(cache_p); | |
1166 | ||
1167 | return CMD_SUCCESS; | |
1168 | } | |
1169 | ||
1170 | DEFUN (show_rpki_prefix_table, | |
1171 | show_rpki_prefix_table_cmd, | |
1172 | "show rpki prefix-table", | |
1173 | SHOW_STR | |
1174 | RPKI_OUTPUT_STRING | |
1175 | "Show validated prefixes which were received from RPKI Cache\n") | |
1176 | { | |
1177 | struct listnode *cache_node; | |
1178 | struct cache *cache; | |
1179 | ||
1180 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, cache)) { | |
1181 | vty_out(vty, "host: %s port: %s\n", | |
1182 | cache->tr_config.tcp_config->host, | |
1183 | cache->tr_config.tcp_config->port); | |
1184 | } | |
1185 | if (is_synchronized()) | |
1186 | print_prefix_table(vty); | |
1187 | else | |
1188 | vty_out(vty, "No connection to RPKI cache server.\n"); | |
1189 | ||
1190 | return CMD_SUCCESS; | |
1191 | } | |
1192 | ||
1193 | DEFPY (show_rpki_prefix, | |
1194 | show_rpki_prefix_cmd, | |
1195 | "show rpki prefix <A.B.C.D/M|X:X::X:X/M> [(1-4294967295)$asn]", | |
1196 | SHOW_STR | |
1197 | RPKI_OUTPUT_STRING | |
1198 | "Lookup IP prefix and optionally ASN in prefix table\n" | |
1199 | "IPv4 prefix\n" | |
1200 | "IPv6 prefix\n" | |
1201 | "AS Number\n") | |
1202 | { | |
1203 | ||
1204 | if (!is_synchronized()) { | |
1205 | vty_out(vty, "No Connection to RPKI cache server.\n"); | |
1206 | return CMD_WARNING; | |
1207 | } | |
1208 | ||
1209 | struct lrtr_ip_addr addr; | |
1210 | char addr_str[INET6_ADDRSTRLEN]; | |
1211 | size_t addr_len = strchr(prefix_str, '/') - prefix_str; | |
1212 | ||
1213 | memset(addr_str, 0, sizeof(addr_str)); | |
1214 | memcpy(addr_str, prefix_str, addr_len); | |
1215 | ||
1216 | if (lrtr_ip_str_to_addr(addr_str, &addr) != 0) { | |
1217 | vty_out(vty, "Invalid IP prefix\n"); | |
1218 | return CMD_WARNING; | |
1219 | } | |
1220 | ||
1221 | struct pfx_record *matches = NULL; | |
1222 | unsigned int match_count = 0; | |
1223 | enum pfxv_state result; | |
1224 | ||
1225 | if (pfx_table_validate_r(rtr_config->pfx_table, &matches, &match_count, | |
1226 | asn, &addr, prefix->prefixlen, &result) | |
1227 | != PFX_SUCCESS) { | |
1228 | vty_out(vty, "Prefix lookup failed"); | |
1229 | return CMD_WARNING; | |
1230 | } | |
1231 | ||
1232 | vty_out(vty, "%-40s %s %s\n", "Prefix", "Prefix Length", "Origin-AS"); | |
1233 | for (size_t i = 0; i < match_count; ++i) { | |
1234 | const struct pfx_record *record = &matches[i]; | |
1235 | ||
1236 | if (record->max_len >= prefix->prefixlen | |
1237 | && ((asn != 0 && (uint32_t)asn == record->asn) | |
1238 | || asn == 0)) { | |
1239 | print_record(&matches[i], vty); | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | return CMD_SUCCESS; | |
1244 | } | |
1245 | ||
1246 | DEFUN (show_rpki_cache_server, | |
1247 | show_rpki_cache_server_cmd, | |
1248 | "show rpki cache-server", | |
1249 | SHOW_STR | |
1250 | RPKI_OUTPUT_STRING | |
1251 | "SHOW configured cache server\n") | |
1252 | { | |
1253 | struct listnode *cache_node; | |
1254 | struct cache *cache; | |
1255 | ||
1256 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, cache)) { | |
1257 | if (cache->type == TCP) { | |
1258 | vty_out(vty, "host: %s port: %s\n", | |
1259 | cache->tr_config.tcp_config->host, | |
1260 | cache->tr_config.tcp_config->port); | |
1261 | ||
1262 | #if defined(FOUND_SSH) | |
1263 | } else if (cache->type == SSH) { | |
1264 | vty_out(vty, | |
1265 | "host: %s port: %d username: %s " | |
1266 | "server_hostkey_path: %s client_privkey_path: %s\n", | |
1267 | cache->tr_config.ssh_config->host, | |
1268 | cache->tr_config.ssh_config->port, | |
1269 | cache->tr_config.ssh_config->username, | |
1270 | cache->tr_config.ssh_config | |
1271 | ->server_hostkey_path, | |
1272 | cache->tr_config.ssh_config | |
1273 | ->client_privkey_path); | |
1274 | #endif | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | return CMD_SUCCESS; | |
1279 | } | |
1280 | ||
1281 | DEFUN (show_rpki_cache_connection, | |
1282 | show_rpki_cache_connection_cmd, | |
1283 | "show rpki cache-connection", | |
1284 | SHOW_STR | |
1285 | RPKI_OUTPUT_STRING | |
1286 | "Show to which RPKI Cache Servers we have a connection\n") | |
1287 | { | |
1288 | if (is_synchronized()) { | |
1289 | struct listnode *cache_node; | |
1290 | struct cache *cache; | |
1291 | struct rtr_mgr_group *group = get_connected_group(); | |
1292 | ||
1293 | if (!group) { | |
1294 | vty_out(vty, "Cannot find a connected group.\n"); | |
1295 | return CMD_SUCCESS; | |
1296 | } | |
1297 | vty_out(vty, "Connected to group %d\n", group->preference); | |
1298 | for (ALL_LIST_ELEMENTS_RO(cache_list, cache_node, cache)) { | |
1299 | if (cache->preference == group->preference) { | |
1300 | struct tr_tcp_config *tcp_config; | |
1301 | #if defined(FOUND_SSH) | |
1302 | struct tr_ssh_config *ssh_config; | |
1303 | #endif | |
1304 | ||
1305 | switch (cache->type) { | |
1306 | case TCP: | |
1307 | tcp_config = | |
1308 | cache->tr_config.tcp_config; | |
1309 | vty_out(vty, | |
1310 | "rpki tcp cache %s %s pref %hhu\n", | |
1311 | tcp_config->host, | |
1312 | tcp_config->port, | |
1313 | cache->preference); | |
1314 | break; | |
1315 | ||
1316 | #if defined(FOUND_SSH) | |
1317 | case SSH: | |
1318 | ssh_config = | |
1319 | cache->tr_config.ssh_config; | |
1320 | vty_out(vty, | |
1321 | "rpki ssh cache %s %u pref %hhu\n", | |
1322 | ssh_config->host, | |
1323 | ssh_config->port, | |
1324 | cache->preference); | |
1325 | break; | |
1326 | #endif | |
1327 | ||
1328 | default: | |
1329 | break; | |
1330 | } | |
1331 | } | |
1332 | } | |
1333 | } else { | |
1334 | vty_out(vty, "No connection to RPKI cache server.\n"); | |
1335 | } | |
1336 | ||
1337 | return CMD_SUCCESS; | |
1338 | } | |
1339 | ||
1340 | DEFUN_NOSH (rpki_exit, | |
1341 | rpki_exit_cmd, | |
1342 | "exit", | |
1343 | "Exit rpki configuration and restart rpki session\n") | |
1344 | { | |
1345 | reset(false); | |
1346 | ||
1347 | vty->node = CONFIG_NODE; | |
1348 | return CMD_SUCCESS; | |
1349 | } | |
1350 | ||
1351 | DEFUN_NOSH (rpki_quit, | |
1352 | rpki_quit_cmd, | |
1353 | "quit", | |
1354 | "Exit rpki configuration mode\n") | |
1355 | { | |
1356 | return rpki_exit(self, vty, argc, argv); | |
1357 | } | |
1358 | ||
1359 | DEFUN_NOSH (rpki_end, | |
1360 | rpki_end_cmd, | |
1361 | "end", | |
1362 | "End rpki configuration, restart rpki session and change to enable mode.\n") | |
1363 | { | |
1364 | int ret = reset(false); | |
1365 | ||
1366 | vty_config_exit(vty); | |
1367 | vty->node = ENABLE_NODE; | |
1368 | return ret == SUCCESS ? CMD_SUCCESS : CMD_WARNING; | |
1369 | } | |
1370 | ||
1371 | DEFUN (rpki_reset, | |
1372 | rpki_reset_cmd, | |
1373 | "rpki reset", | |
1374 | RPKI_OUTPUT_STRING | |
1375 | "reset rpki\n") | |
1376 | { | |
1377 | return reset(true) == SUCCESS ? CMD_SUCCESS : CMD_WARNING; | |
1378 | } | |
1379 | ||
1380 | DEFUN (debug_rpki, | |
1381 | debug_rpki_cmd, | |
1382 | "debug rpki", | |
1383 | DEBUG_STR | |
1384 | "Enable debugging for rpki\n") | |
1385 | { | |
1386 | rpki_debug = 1; | |
1387 | return CMD_SUCCESS; | |
1388 | } | |
1389 | ||
1390 | DEFUN (no_debug_rpki, | |
1391 | no_debug_rpki_cmd, | |
1392 | "no debug rpki", | |
1393 | NO_STR | |
1394 | DEBUG_STR | |
1395 | "Disable debugging for rpki\n") | |
1396 | { | |
1397 | rpki_debug = 0; | |
1398 | return CMD_SUCCESS; | |
1399 | } | |
1400 | ||
1401 | DEFUN (match_rpki, | |
1402 | match_rpki_cmd, | |
1403 | "match rpki <valid|invalid|notfound>", | |
1404 | MATCH_STR | |
1405 | RPKI_OUTPUT_STRING | |
1406 | "Valid prefix\n" | |
1407 | "Invalid prefix\n" | |
1408 | "Prefix not found\n") | |
1409 | { | |
1410 | VTY_DECLVAR_CONTEXT(route_map_index, index); | |
1411 | enum rmap_compile_rets ret; | |
1412 | ||
1413 | ret = route_map_add_match(index, "rpki", argv[2]->arg, | |
1414 | RMAP_EVENT_MATCH_ADDED); | |
1415 | if (ret) { | |
1416 | switch (ret) { | |
1417 | case RMAP_RULE_MISSING: | |
1418 | vty_out(vty, "%% BGP Can't find rule.\n"); | |
1419 | return CMD_WARNING_CONFIG_FAILED; | |
1420 | case RMAP_COMPILE_ERROR: | |
1421 | vty_out(vty, "%% BGP Argument is malformed.\n"); | |
1422 | return CMD_WARNING_CONFIG_FAILED; | |
1423 | case RMAP_COMPILE_SUCCESS: | |
1424 | /* | |
1425 | * Intentionally doing nothing here | |
1426 | */ | |
1427 | break; | |
1428 | } | |
1429 | } | |
1430 | return CMD_SUCCESS; | |
1431 | } | |
1432 | ||
1433 | DEFUN (no_match_rpki, | |
1434 | no_match_rpki_cmd, | |
1435 | "no match rpki <valid|invalid|notfound>", | |
1436 | NO_STR | |
1437 | MATCH_STR | |
1438 | RPKI_OUTPUT_STRING | |
1439 | "Valid prefix\n" | |
1440 | "Invalid prefix\n" | |
1441 | "Prefix not found\n") | |
1442 | { | |
1443 | VTY_DECLVAR_CONTEXT(route_map_index, index); | |
1444 | enum rmap_compile_rets ret; | |
1445 | ||
1446 | ret = route_map_delete_match(index, "rpki", argv[3]->arg, | |
1447 | RMAP_EVENT_MATCH_DELETED); | |
1448 | if (ret) { | |
1449 | switch (ret) { | |
1450 | case RMAP_RULE_MISSING: | |
1451 | vty_out(vty, "%% BGP Can't find rule.\n"); | |
1452 | break; | |
1453 | case RMAP_COMPILE_ERROR: | |
1454 | vty_out(vty, "%% BGP Argument is malformed.\n"); | |
1455 | break; | |
1456 | case RMAP_COMPILE_SUCCESS: | |
1457 | /* | |
1458 | * Nothing to do here | |
1459 | */ | |
1460 | break; | |
1461 | } | |
1462 | return CMD_WARNING_CONFIG_FAILED; | |
1463 | } | |
1464 | ||
1465 | return CMD_SUCCESS; | |
1466 | } | |
1467 | ||
1468 | static void overwrite_exit_commands(void) | |
1469 | { | |
1470 | unsigned int i; | |
1471 | vector cmd_vector = rpki_node.cmd_vector; | |
1472 | ||
1473 | for (i = 0; i < cmd_vector->active; ++i) { | |
1474 | struct cmd_element *cmd = vector_lookup(cmd_vector, i); | |
1475 | ||
1476 | if (strcmp(cmd->string, "exit") == 0 | |
1477 | || strcmp(cmd->string, "quit") == 0 | |
1478 | || strcmp(cmd->string, "end") == 0) { | |
1479 | uninstall_element(RPKI_NODE, cmd); | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | install_element(RPKI_NODE, &rpki_exit_cmd); | |
1484 | install_element(RPKI_NODE, &rpki_quit_cmd); | |
1485 | install_element(RPKI_NODE, &rpki_end_cmd); | |
1486 | } | |
1487 | ||
1488 | static void install_cli_commands(void) | |
1489 | { | |
1490 | // TODO: make config write work | |
1491 | install_node(&rpki_node, &config_write); | |
1492 | install_default(RPKI_NODE); | |
1493 | overwrite_exit_commands(); | |
1494 | install_element(CONFIG_NODE, &rpki_cmd); | |
1495 | install_element(ENABLE_NODE, &rpki_cmd); | |
1496 | ||
1497 | install_element(ENABLE_NODE, &bgp_rpki_start_cmd); | |
1498 | install_element(ENABLE_NODE, &bgp_rpki_stop_cmd); | |
1499 | ||
1500 | /* Install rpki reset command */ | |
1501 | install_element(RPKI_NODE, &rpki_reset_cmd); | |
1502 | ||
1503 | /* Install rpki polling period commands */ | |
1504 | install_element(RPKI_NODE, &rpki_polling_period_cmd); | |
1505 | install_element(RPKI_NODE, &no_rpki_polling_period_cmd); | |
1506 | ||
1507 | /* Install rpki expire interval commands */ | |
1508 | install_element(RPKI_NODE, &rpki_expire_interval_cmd); | |
1509 | install_element(RPKI_NODE, &no_rpki_expire_interval_cmd); | |
1510 | ||
1511 | /* Install rpki retry interval commands */ | |
1512 | install_element(RPKI_NODE, &rpki_retry_interval_cmd); | |
1513 | install_element(RPKI_NODE, &no_rpki_retry_interval_cmd); | |
1514 | ||
1515 | /* Install rpki timeout commands */ | |
1516 | install_element(RPKI_NODE, &rpki_timeout_cmd); | |
1517 | install_element(RPKI_NODE, &no_rpki_timeout_cmd); | |
1518 | ||
1519 | /* Install rpki synchronisation timeout commands */ | |
1520 | install_element(RPKI_NODE, &rpki_synchronisation_timeout_cmd); | |
1521 | install_element(RPKI_NODE, &no_rpki_synchronisation_timeout_cmd); | |
1522 | ||
1523 | /* Install rpki cache commands */ | |
1524 | install_element(RPKI_NODE, &rpki_cache_cmd); | |
1525 | install_element(RPKI_NODE, &no_rpki_cache_cmd); | |
1526 | ||
1527 | /* Install show commands */ | |
1528 | install_element(VIEW_NODE, &show_rpki_prefix_table_cmd); | |
1529 | install_element(VIEW_NODE, &show_rpki_cache_connection_cmd); | |
1530 | install_element(VIEW_NODE, &show_rpki_cache_server_cmd); | |
1531 | install_element(VIEW_NODE, &show_rpki_prefix_cmd); | |
1532 | ||
1533 | /* Install debug commands */ | |
1534 | install_element(CONFIG_NODE, &debug_rpki_cmd); | |
1535 | install_element(ENABLE_NODE, &debug_rpki_cmd); | |
1536 | install_element(CONFIG_NODE, &no_debug_rpki_cmd); | |
1537 | install_element(ENABLE_NODE, &no_debug_rpki_cmd); | |
1538 | ||
1539 | /* Install route match */ | |
1540 | route_map_install_match(&route_match_rpki_cmd); | |
1541 | install_element(RMAP_NODE, &match_rpki_cmd); | |
1542 | install_element(RMAP_NODE, &no_match_rpki_cmd); | |
1543 | } | |
1544 | ||
1545 | FRR_MODULE_SETUP(.name = "bgpd_rpki", .version = "0.3.6", | |
1546 | .description = "Enable RPKI support for FRR.", | |
1547 | .init = bgp_rpki_module_init) |