Bug Summary

File:src/usr.bin/bgplg/bgpctl/../../../usr.sbin/bgpctl/bgpctl.c
Warning:line 446, column 37
The expression is an uninitialized value. The computed value will also be garbage

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name bgpctl.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/usr.bin/bgplg/bgpctl/obj -resource-dir /usr/local/llvm16/lib/clang/16 -I /usr/src/usr.bin/bgplg/bgpctl/../../../usr.sbin/bgpctl -I /usr/src/usr.bin/bgplg/bgpctl/../../../usr.sbin/bgpctl/../bgpd -I /usr/src/usr.bin/bgplg/bgpctl -I /usr/src/usr.bin/bgplg/bgpctl/../bgpd -internal-isystem /usr/local/llvm16/lib/clang/16/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/usr.bin/bgplg/bgpctl/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fno-jump-tables -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/scan/2024-01-11-140451-98009-1 -x c /usr/src/usr.bin/bgplg/bgpctl/../../../usr.sbin/bgpctl/bgpctl.c
1/* $OpenBSD: bgpctl.c,v 1.299 2024/01/08 15:09:14 claudio Exp $ */
2
3/*
4 * Copyright (c) 2003 Henning Brauer <henning@openbsd.org>
5 * Copyright (c) 2004-2019 Claudio Jeker <claudio@openbsd.org>
6 * Copyright (c) 2016 Job Snijders <job@instituut.net>
7 * Copyright (c) 2016 Peter Hessler <phessler@openbsd.org>
8 *
9 * Permission to use, copy, modify, and distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 */
21
22#include <sys/time.h>
23#include <sys/types.h>
24#include <sys/socket.h>
25#include <sys/stat.h>
26#include <sys/un.h>
27
28#include <endian.h>
29#include <err.h>
30#include <errno(*__errno()).h>
31#include <fcntl.h>
32#include <math.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <string.h>
36#include <time.h>
37#include <unistd.h>
38#include <util.h>
39
40#include "bgpd.h"
41#include "session.h"
42#include "rde.h"
43#include "version.h"
44
45#include "bgpctl.h"
46#include "parser.h"
47#include "mrtparser.h"
48
49int main(int, char *[]);
50int show(struct imsg *, struct parse_result *);
51void send_filterset(struct imsgbuf *, struct filter_set_head *);
52void show_mrt_dump_neighbors(struct mrt_rib *, struct mrt_peer *,
53 void *);
54void show_mrt_dump(struct mrt_rib *, struct mrt_peer *, void *);
55void network_mrt_dump(struct mrt_rib *, struct mrt_peer *, void *);
56void show_mrt_state(struct mrt_bgp_state *, void *);
57void show_mrt_msg(struct mrt_bgp_msg *, void *);
58const char *msg_type(uint8_t);
59void network_bulk(struct parse_result *);
60int match_aspath(void *, uint16_t, struct filter_as *);
61struct flowspec *res_to_flowspec(struct parse_result *);
62
63struct imsgbuf *imsgbuf;
64struct mrt_parser show_mrt = { show_mrt_dump, show_mrt_state, show_mrt_msg };
65struct mrt_parser net_mrt = { network_mrt_dump, NULL((void *)0), NULL((void *)0) };
66const struct output *output = &show_output;
67int tableid;
68int nodescr;
69
70__dead__attribute__((__noreturn__)) void
71usage(void)
72{
73 extern char *__progname;
74
75 fprintf(stderr(&__sF[2]), "usage: %s [-jnV] [-s socket] command [argument ...]\n",
76 __progname);
77 exit(1);
78}
79
80int
81main(int argc, char *argv[])
82{
83 struct sockaddr_un sa_un;
84 int fd, n, done, numdone, ch, verbose = 0;
1
'numdone' declared without an initial value
→
85 struct imsg imsg;
86 struct network_config net;
87 struct parse_result *res;
88 struct ctl_neighbor neighbor;
89 struct ctl_show_rib_request ribreq;
90 struct flowspec *f;
91 char *sockname;
92 enum imsg_type type;
93
94 if (pledge("stdio rpath wpath cpath unix inet dns", NULL((void *)0)) == -1)
2
←
Assuming the condition is false
→
3
←
Taking false branch
→
95 err(1, "pledge");
96
97 tableid = getrtable();
98 if (asprintf(&sockname, "%s.%d", SOCKET_NAME"/var/run/bgpd.sock", tableid) == -1)
4
←
Assuming the condition is false
→
5
←
Taking false branch
→
99 err(1, "asprintf");
100
101 while ((ch = getopt(argc, argv, "jns:V")) != -1) {
6
←
Assuming the condition is false
→
7
←
Loop condition is false. Execution continues on line 121
→
102 switch (ch) {
103 case 'n':
104 if (++nodescr > 1)
105 usage();
106 break;
107 case 'j':
108 output = &json_output;
109 break;
110 case 's':
111 sockname = optarg;
112 break;
113 case 'V':
114 fprintf(stderr(&__sF[2]), "OpenBGPD %s\n", BGPD_VERSION"8.3");
115 return 0;
116 default:
117 usage();
118 /* NOTREACHED */
119 }
120 }
121 argc -= optind;
122 argv += optind;
123
124 if ((res = parse(argc, argv)) == NULL((void *)0))
8
←
Assuming the condition is false
→
9
←
Taking false branch
→
125 exit(1);
126
127 memcpy(&neighbor.addr, &res->peeraddr, sizeof(neighbor.addr));
128 strlcpy(neighbor.descr, res->peerdesc, sizeof(neighbor.descr));
129 neighbor.is_group = res->is_group;
130 strlcpy(neighbor.reason, res->reason, sizeof(neighbor.reason));
131
132 switch (res->action) {
10
←
Control jumps to the 'default' case at line 156
→
133 case SHOW_MRT:
134 if (pledge("stdio", NULL((void *)0)) == -1)
135 err(1, "pledge");
136
137 memset(&ribreq, 0, sizeof(ribreq));
138 if (res->as.type != AS_UNDEF)
139 ribreq.as = res->as;
140 if (res->addr.aid) {
141 ribreq.prefix = res->addr;
142 ribreq.prefixlen = res->prefixlen;
143 }
144 /* XXX currently no communities support */
145 ribreq.neighbor = neighbor;
146 ribreq.aid = res->aid;
147 ribreq.flags = res->flags;
148 ribreq.validation_state = res->validation_state;
149 show_mrt.arg = &ribreq;
150 if (res->flags & F_CTL_NEIGHBORS0x400000)
151 show_mrt.dump = show_mrt_dump_neighbors;
152 else
153 output->head(res);
154 mrt_parse(res->mrtfd, &show_mrt, 1);
155 exit(0);
156 default:
157 break;
158 }
159
160 if (pledge("stdio unix", NULL((void *)0)) == -1)
11
←
 Execution continues on line 160
→
12
←
Assuming the condition is false
→
13
←
Taking false branch
→
161 err(1, "pledge");
162
163 if ((fd = socket(AF_UNIX1, SOCK_STREAM1, 0)) == -1)
14
←
Assuming the condition is false
→
15
←
Taking false branch
→
164 err(1, "control_init: socket");
165
166 memset(&sa_un, 0, sizeof(sa_un));
167 sa_un.sun_family = AF_UNIX1;
168 if (strlcpy(sa_un.sun_path, sockname, sizeof(sa_un.sun_path)) >=
16
←
Assuming the condition is false
→
17
←
Taking false branch
→
169 sizeof(sa_un.sun_path))
170 errx(1, "socket name too long");
171 if (connect(fd, (struct sockaddr *)&sa_un, sizeof(sa_un)) == -1)
18
←
Assuming the condition is false
→
19
←
Taking false branch
→
172 err(1, "connect: %s", sockname);
173
174 if (pledge("stdio", NULL((void *)0)) == -1)
20
←
Assuming the condition is false
→
21
←
Taking false branch
→
175 err(1, "pledge");
176
177 if ((imsgbuf = malloc(sizeof(struct imsgbuf))) == NULL((void *)0))
22
←
Assuming the condition is false
→
23
←
Taking false branch
→
178 err(1, NULL((void *)0));
179 imsg_init(imsgbuf, fd);
180 done = 0;
181
182 switch (res->action) {
24
←
Control jumps to 'case FLOWSPEC_FLUSH:' at line 382
→
183 case NONE:
184 case SHOW_MRT:
185 usage();
186 /* NOTREACHED */
187 case SHOW:
188 case SHOW_SUMMARY:
189 imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1,
190 NULL((void *)0), 0);
191 break;
192 case SHOW_SUMMARY_TERSE:
193 imsg_compose(imsgbuf, IMSG_CTL_SHOW_TERSE, 0, 0, -1, NULL((void *)0), 0);
194 break;
195 case SHOW_FIB:
196 if (!res->addr.aid) {
197 struct ctl_kroute_req req = { 0 };
198
199 req.af = aid2af(res->aid);
200 req.flags = res->flags;
201
202 imsg_compose(imsgbuf, IMSG_CTL_KROUTE, res->rtableid,
203 0, -1, &req, sizeof(req));
204 } else
205 imsg_compose(imsgbuf, IMSG_CTL_KROUTE_ADDR,
206 res->rtableid, 0, -1,
207 &res->addr, sizeof(res->addr));
208 break;
209 case SHOW_FIB_TABLES:
210 imsg_compose(imsgbuf, IMSG_CTL_SHOW_FIB_TABLES, 0, 0, -1,
211 NULL((void *)0), 0);
212 break;
213 case SHOW_NEXTHOP:
214 imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEXTHOP, res->rtableid,
215 0, -1, NULL((void *)0), 0);
216 break;
217 case SHOW_INTERFACE:
218 imsg_compose(imsgbuf, IMSG_CTL_SHOW_INTERFACE, 0, 0, -1,
219 NULL((void *)0), 0);
220 break;
221 case SHOW_SET:
222 imsg_compose(imsgbuf, IMSG_CTL_SHOW_SET, 0, 0, -1, NULL((void *)0), 0);
223 break;
224 case SHOW_RTR:
225 imsg_compose(imsgbuf, IMSG_CTL_SHOW_RTR, 0, 0, -1, NULL((void *)0), 0);
226 break;
227 case SHOW_NEIGHBOR:
228 case SHOW_NEIGHBOR_TIMERS:
229 case SHOW_NEIGHBOR_TERSE:
230 neighbor.show_timers = (res->action == SHOW_NEIGHBOR_TIMERS);
231 if (res->peeraddr.aid || res->peerdesc[0])
232 imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1,
233 &neighbor, sizeof(neighbor));
234 else
235 imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1,
236 NULL((void *)0), 0);
237 break;
238 case SHOW_RIB:
239 memset(&ribreq, 0, sizeof(ribreq));
240 type = IMSG_CTL_SHOW_RIB;
241 if (res->addr.aid) {
242 ribreq.prefix = res->addr;
243 ribreq.prefixlen = res->prefixlen;
244 type = IMSG_CTL_SHOW_RIB_PREFIX;
245 }
246 if (res->as.type != AS_UNDEF)
247 ribreq.as = res->as;
248 if (res->community.flags != 0)
249 ribreq.community = res->community;
250 ribreq.neighbor = neighbor;
251 strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib));
252 ribreq.aid = res->aid;
253 ribreq.path_id = res->pathid;
254 ribreq.flags = res->flags;
255 imsg_compose(imsgbuf, type, 0, 0, -1, &ribreq, sizeof(ribreq));
256 break;
257 case SHOW_RIB_MEM:
258 imsg_compose(imsgbuf, IMSG_CTL_SHOW_RIB_MEM, 0, 0, -1, NULL((void *)0), 0);
259 break;
260 case SHOW_METRICS:
261 output = &ometric_output;
262 numdone = 2;
263 imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1,
264 NULL((void *)0), 0);
265 imsg_compose(imsgbuf, IMSG_CTL_SHOW_RIB_MEM, 0, 0, -1, NULL((void *)0), 0);
266 break;
267 case RELOAD:
268 imsg_compose(imsgbuf, IMSG_CTL_RELOAD, 0, 0, -1,
269 res->reason, sizeof(res->reason));
270 if (res->reason[0])
271 printf("reload request sent: %s\n", res->reason);
272 else
273 printf("reload request sent.\n");
274 break;
275 case FIB:
276 errx(1, "action==FIB");
277 break;
278 case FIB_COUPLE:
279 imsg_compose(imsgbuf, IMSG_CTL_FIB_COUPLE, res->rtableid, 0, -1,
280 NULL((void *)0), 0);
281 printf("couple request sent.\n");
282 done = 1;
283 break;
284 case FIB_DECOUPLE:
285 imsg_compose(imsgbuf, IMSG_CTL_FIB_DECOUPLE, res->rtableid,
286 0, -1, NULL((void *)0), 0);
287 printf("decouple request sent.\n");
288 done = 1;
289 break;
290 case NEIGHBOR:
291 errx(1, "action==NEIGHBOR");
292 break;
293 case NEIGHBOR_UP:
294 imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_UP, 0, 0, -1,
295 &neighbor, sizeof(neighbor));
296 break;
297 case NEIGHBOR_DOWN:
298 imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_DOWN, 0, 0, -1,
299 &neighbor, sizeof(neighbor));
300 break;
301 case NEIGHBOR_CLEAR:
302 imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_CLEAR, 0, 0, -1,
303 &neighbor, sizeof(neighbor));
304 break;
305 case NEIGHBOR_RREFRESH:
306 imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_RREFRESH, 0, 0, -1,
307 &neighbor, sizeof(neighbor));
308 break;
309 case NEIGHBOR_DESTROY:
310 imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_DESTROY, 0, 0, -1,
311 &neighbor, sizeof(neighbor));
312 break;
313 case NETWORK_BULK_ADD:
314 case NETWORK_BULK_REMOVE:
315 network_bulk(res);
316 printf("requests sent.\n");
317 done = 1;
318 break;
319 case NETWORK_ADD:
320 case NETWORK_REMOVE:
321 memset(&net, 0, sizeof(net));
322 net.prefix = res->addr;
323 net.prefixlen = res->prefixlen;
324 net.rd = res->rd;
325 /* attribute sets are not supported */
326 if (res->action == NETWORK_ADD) {
327 imsg_compose(imsgbuf, IMSG_NETWORK_ADD, 0, 0, -1,
328 &net, sizeof(net));
329 send_filterset(imsgbuf, &res->set);
330 imsg_compose(imsgbuf, IMSG_NETWORK_DONE, 0, 0, -1,
331 NULL((void *)0), 0);
332 } else
333 imsg_compose(imsgbuf, IMSG_NETWORK_REMOVE, 0, 0, -1,
334 &net, sizeof(net));
335 printf("request sent.\n");
336 done = 1;
337 break;
338 case NETWORK_FLUSH:
339 imsg_compose(imsgbuf, IMSG_NETWORK_FLUSH, 0, 0, -1, NULL((void *)0), 0);
340 printf("request sent.\n");
341 done = 1;
342 break;
343 case NETWORK_SHOW:
344 memset(&ribreq, 0, sizeof(ribreq));
345 ribreq.aid = res->aid;
346 strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib));
347 imsg_compose(imsgbuf, IMSG_CTL_SHOW_NETWORK, 0, 0, -1,
348 &ribreq, sizeof(ribreq));
349 break;
350 case NETWORK_MRT:
351 memset(&ribreq, 0, sizeof(ribreq));
352 if (res->as.type != AS_UNDEF)
353 ribreq.as = res->as;
354 if (res->addr.aid) {
355 ribreq.prefix = res->addr;
356 ribreq.prefixlen = res->prefixlen;
357 }
358 /* XXX currently no community support */
359 ribreq.neighbor = neighbor;
360 ribreq.aid = res->aid;
361 ribreq.flags = res->flags;
362 net_mrt.arg = &ribreq;
363 mrt_parse(res->mrtfd, &net_mrt, 1);
364 done = 1;
365 break;
366 case FLOWSPEC_ADD:
367 case FLOWSPEC_REMOVE:
368 f = res_to_flowspec(res);
369 /* attribute sets are not supported */
370 if (res->action == FLOWSPEC_ADD) {
371 imsg_compose(imsgbuf, IMSG_FLOWSPEC_ADD, 0, 0, -1,
372 f, FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)) + f->len);
373 send_filterset(imsgbuf, &res->set);
374 imsg_compose(imsgbuf, IMSG_FLOWSPEC_DONE, 0, 0, -1,
375 NULL((void *)0), 0);
376 } else
377 imsg_compose(imsgbuf, IMSG_FLOWSPEC_REMOVE, 0, 0, -1,
378 f, FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)) + f->len);
379 printf("request sent.\n");
380 done = 1;
381 break;
382 case FLOWSPEC_FLUSH:
383 imsg_compose(imsgbuf, IMSG_FLOWSPEC_FLUSH, 0, 0, -1, NULL((void *)0), 0);
384 printf("request sent.\n");
385 done = 1;
386 break;
25
←
 Execution continues on line 418
→
387 case FLOWSPEC_SHOW:
388 memset(&ribreq, 0, sizeof(ribreq));
389 switch (res->aid) {
390 case AID_INET1:
391 ribreq.aid = AID_FLOWSPECv45;
392 break;
393 case AID_INET62:
394 ribreq.aid = AID_FLOWSPECv66;
395 break;
396 case AID_UNSPEC0:
397 ribreq.aid = res->aid;
398 break;
399 default:
400 errx(1, "flowspec family %s currently not supported",
401 aid2str(res->aid));
402 }
403 strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib));
404 imsg_compose(imsgbuf, IMSG_CTL_SHOW_FLOWSPEC, 0, 0, -1,
405 &ribreq, sizeof(ribreq));
406 break;
407 case LOG_VERBOSE:
408 verbose = 1;
409 /* FALLTHROUGH */
410 case LOG_BRIEF:
411 imsg_compose(imsgbuf, IMSG_CTL_LOG_VERBOSE, 0, 0, -1,
412 &verbose, sizeof(verbose));
413 printf("logging request sent.\n");
414 done = 1;
415 break;
416 }
417
418 output->head(res);
419
420 again:
421 while (imsgbuf->w.queued)
26
←
Loop condition is false. Execution continues on line 425
→
422 if (msgbuf_write(&imsgbuf->w) <= 0)
423 err(1, "write error");
424
425 while (!done) {
426 while (!done) {
427 if ((n = imsg_get(imsgbuf, &imsg)) == -1)
428 err(1, "imsg_get error");
429 if (n == 0)
430 break;
431
432 done = show(&imsg, res);
433 imsg_free(&imsg);
434 }
435
436 if (done)
437 break;
438
439 if ((n = imsg_read(imsgbuf)) == -1)
440 err(1, "imsg_read error");
441 if (n == 0)
442 errx(1, "pipe closed");
443
444 }
445
446 if (res->action == SHOW_METRICS && --numdone > 0) {
27
←
Assuming field 'action' is equal to SHOW_METRICS
→
28
←
The expression is an uninitialized value. The computed value will also be garbage
447 done = 0;
448 goto again;
449 }
450
451 output->tail();
452
453 close(fd);
454 free(imsgbuf);
455
456 exit(0);
457}
458
459int
460show(struct imsg *imsg, struct parse_result *res)
461{
462 struct peer *p;
463 struct ctl_timer t;
464 struct ctl_show_interface *iface;
465 struct ctl_show_nexthop *nh;
466 struct ctl_show_set set;
467 struct ctl_show_rtr rtr;
468 struct kroute_full *kf;
469 struct ktable *kt;
470 struct flowspec *f;
471 struct ctl_show_rib rib;
472 struct rde_memstats stats;
473 u_char *asdata;
474 u_int rescode, ilen;
475 size_t aslen;
476
477 switch (imsg->hdr.type) {
478 case IMSG_CTL_SHOW_NEIGHBOR:
479 if (output->neighbor == NULL((void *)0))
480 break;
481 p = imsg->data;
482 output->neighbor(p, res);
483 break;
484 case IMSG_CTL_SHOW_TIMER:
485 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(t))
486 errx(1, "wrong imsg len");
487 if (output->timer == NULL((void *)0))
488 break;
489 memcpy(&t, imsg->data, sizeof(t));
490 if (t.type > 0 && t.type < Timer_Max)
491 output->timer(&t);
492 break;
493 case IMSG_CTL_SHOW_INTERFACE:
494 if (output->interface == NULL((void *)0))
495 break;
496 iface = imsg->data;
497 output->interface(iface);
498 break;
499 case IMSG_CTL_SHOW_NEXTHOP:
500 if (output->nexthop == NULL((void *)0))
501 break;
502 nh = imsg->data;
503 output->nexthop(nh);
504 break;
505 case IMSG_CTL_KROUTE:
506 case IMSG_CTL_SHOW_NETWORK:
507 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*kf))
508 errx(1, "wrong imsg len");
509 if (output->fib == NULL((void *)0))
510 break;
511 kf = imsg->data;
512 output->fib(kf);
513 break;
514 case IMSG_CTL_SHOW_FLOWSPEC:
515 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*f))
516 errx(1, "wrong imsg len");
517 if (output->flowspec == NULL((void *)0))
518 break;
519 f = imsg->data;
520 output->flowspec(f);
521 break;
522 case IMSG_CTL_SHOW_FIB_TABLES:
523 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*kt))
524 errx(1, "wrong imsg len");
525 if (output->fib_table == NULL((void *)0))
526 break;
527 kt = imsg->data;
528 output->fib_table(kt);
529 break;
530 case IMSG_CTL_SHOW_RIB:
531 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rib))
532 errx(1, "wrong imsg len");
533 if (output->rib == NULL((void *)0))
534 break;
535 memcpy(&rib, imsg->data, sizeof(rib));
536 aslen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) - sizeof(rib);
537 asdata = imsg->data;
538 asdata += sizeof(rib);
539 output->rib(&rib, asdata, aslen, res);
540 break;
541 case IMSG_CTL_SHOW_RIB_COMMUNITIES:
542 ilen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr);
543 if (ilen % sizeof(struct community)) {
544 warnx("bad IMSG_CTL_SHOW_RIB_COMMUNITIES received");
545 break;
546 }
547 if (output->communities == NULL((void *)0))
548 break;
549 output->communities(imsg->data, ilen, res);
550 break;
551 case IMSG_CTL_SHOW_RIB_ATTR:
552 ilen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr);
553 if (ilen < 3) {
554 warnx("bad IMSG_CTL_SHOW_RIB_ATTR received");
555 break;
556 }
557 if (output->attr == NULL((void *)0))
558 break;
559 output->attr(imsg->data, ilen, res->flags, 0);
560 break;
561 case IMSG_CTL_SHOW_RIB_MEM:
562 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(stats))
563 errx(1, "wrong imsg len");
564 if (output->rib_mem == NULL((void *)0))
565 break;
566 memcpy(&stats, imsg->data, sizeof(stats));
567 output->rib_mem(&stats);
568 return (1);
569 case IMSG_CTL_SHOW_SET:
570 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(set))
571 errx(1, "wrong imsg len");
572 if (output->set == NULL((void *)0))
573 break;
574 memcpy(&set, imsg->data, sizeof(set));
575 output->set(&set);
576 break;
577 case IMSG_CTL_SHOW_RTR:
578 if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rtr))
579 errx(1, "wrong imsg len");
580 if (output->rtr == NULL((void *)0))
581 break;
582 memcpy(&rtr, imsg->data, sizeof(rtr));
583 output->rtr(&rtr);
584 break;
585 case IMSG_CTL_RESULT:
586 if (imsg->hdr.len != IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rescode)) {
587 warnx("got IMSG_CTL_RESULT with wrong len");
588 break;
589 }
590 if (output->result == NULL((void *)0))
591 break;
592 memcpy(&rescode, imsg->data, sizeof(rescode));
593 output->result(rescode);
594 return (1);
595 case IMSG_CTL_END:
596 return (1);
597 default:
598 warnx("unknown imsg %d received", imsg->hdr.type);
599 break;
600 }
601
602 return (0);
603}
604
605time_t
606get_monotime(time_t t)
607{
608 struct timespec ts;
609
610 if (t == 0)
611 return -1;
612 if (clock_gettime(CLOCK_MONOTONIC3, &ts) != 0)
613 err(1, "clock_gettime");
614 if (t > ts.tv_sec) /* time in the future is not possible */
615 t = ts.tv_sec;
616 return (ts.tv_sec - t);
617}
618
619char *
620fmt_peer(const char *descr, const struct bgpd_addr *remote_addr,
621 int masklen)
622{
623 const char *ip;
624 char *p;
625
626 if (descr && descr[0] && !nodescr) {
627 if ((p = strdup(descr)) == NULL((void *)0))
628 err(1, NULL((void *)0));
629 return (p);
630 }
631
632 ip = log_addr(remote_addr);
633 if (masklen != -1 && ((remote_addr->aid == AID_INET1 && masklen != 32) ||
634 (remote_addr->aid == AID_INET62 && masklen != 128))) {
635 if (asprintf(&p, "%s/%u", ip, masklen) == -1)
636 err(1, NULL((void *)0));
637 } else {
638 if ((p = strdup(ip)) == NULL((void *)0))
639 err(1, NULL((void *)0));
640 }
641
642 return (p);
643}
644
645const char *
646fmt_auth_method(enum auth_method method)
647{
648 switch (method) {
649 case AUTH_MD5SIG:
650 return ", using md5sig";
651 case AUTH_IPSEC_MANUAL_ESP:
652 return ", using ipsec manual esp";
653 case AUTH_IPSEC_MANUAL_AH:
654 return ", using ipsec manual ah";
655 case AUTH_IPSEC_IKE_ESP:
656 return ", using ipsec ike esp";
657 case AUTH_IPSEC_IKE_AH:
658 return ", using ipsec ike ah";
659 case AUTH_NONE: /* FALLTHROUGH */
660 default:
661 return "";
662 }
663}
664
665#define TF_LEN16 16
666
667const char *
668fmt_timeframe(time_t t)
669{
670 static char buf[TF_LEN16];
671 unsigned int sec, min, hrs, day;
672 unsigned long long week;
673
674 if (t < 0)
675 t = 0;
676 week = t;
677
678 sec = week % 60;
679 week /= 60;
680 min = week % 60;
681 week /= 60;
682 hrs = week % 24;
683 week /= 24;
684 day = week % 7;
685 week /= 7;
686
687 if (week >= 1000)
688 snprintf(buf, TF_LEN16, "%02lluw", week);
689 else if (week > 0)
690 snprintf(buf, TF_LEN16, "%02lluw%01ud%02uh", week, day, hrs);
691 else if (day > 0)
692 snprintf(buf, TF_LEN16, "%01ud%02uh%02um", day, hrs, min);
693 else
694 snprintf(buf, TF_LEN16, "%02u:%02u:%02u", hrs, min, sec);
695
696 return (buf);
697}
698
699const char *
700fmt_monotime(time_t t)
701{
702 t = get_monotime(t);
703
704 if (t == -1)
705 return ("Never");
706
707 return (fmt_timeframe(t));
708}
709
710const char *
711fmt_fib_flags(uint16_t flags)
712{
713 static char buf[8];
714
715 if (flags & F_BGPD0x0001)
716 strlcpy(buf, "B", sizeof(buf));
717 else if (flags & F_CONNECTED0x0004)
718 strlcpy(buf, "C", sizeof(buf));
719 else if (flags & F_STATIC0x0008)
720 strlcpy(buf, "S", sizeof(buf));
721 else
722 strlcpy(buf, " ", sizeof(buf));
723
724 if (flags & F_NEXTHOP0x0010)
725 strlcat(buf, "N", sizeof(buf));
726 else
727 strlcat(buf, " ", sizeof(buf));
728
729 if (flags & F_REJECT0x0020 && flags & F_BLACKHOLE0x0040)
730 strlcat(buf, "f", sizeof(buf));
731 else if (flags & F_REJECT0x0020)
732 strlcat(buf, "r", sizeof(buf));
733 else if (flags & F_BLACKHOLE0x0040)
734 strlcat(buf, "b", sizeof(buf));
735 else
736 strlcat(buf, " ", sizeof(buf));
737
738 return buf;
739}
740
741const char *
742fmt_origin(uint8_t origin, int sum)
743{
744 switch (origin) {
745 case ORIGIN_IGP0:
746 return (sum ? "i" : "IGP");
747 case ORIGIN_EGP1:
748 return (sum ? "e" : "EGP");
749 case ORIGIN_INCOMPLETE2:
750 return (sum ? "?" : "incomplete");
751 default:
752 return (sum ? "X" : "bad origin");
753 }
754}
755
756const char *
757fmt_flags(uint32_t flags, int sum)
758{
759 static char buf[80];
760 char flagstr[5];
761 char *p = flagstr;
762
763 if (sum) {
764 if (flags & F_PREF_INVALID0x020)
765 *p++ = 'E';
766 if (flags & F_PREF_OTC_LEAK0x080)
767 *p++ = 'L';
768 if (flags & F_PREF_ANNOUNCE0x008)
769 *p++ = 'A';
770 if (flags & F_PREF_INTERNAL0x004)
771 *p++ = 'I';
772 if (flags & F_PREF_STALE0x010)
773 *p++ = 'S';
774 if (flags & F_PREF_ELIGIBLE0x001)
775 *p++ = '*';
776 if (flags & F_PREF_BEST0x002)
777 *p++ = '>';
778 if (flags & F_PREF_ECMP0x100)
779 *p++ = 'm';
780 if (flags & F_PREF_AS_WIDE0x200)
781 *p++ = 'w';
782 *p = '\0';
783 snprintf(buf, sizeof(buf), "%-5s", flagstr);
784 } else {
785 if (flags & F_PREF_INTERNAL0x004)
786 strlcpy(buf, "internal", sizeof(buf));
787 else
788 strlcpy(buf, "external", sizeof(buf));
789
790 if (flags & F_PREF_INVALID0x020)
791 strlcat(buf, ", invalid", sizeof(buf));
792 if (flags & F_PREF_OTC_LEAK0x080)
793 strlcat(buf, ", otc leak", sizeof(buf));
794 if (flags & F_PREF_STALE0x010)
795 strlcat(buf, ", stale", sizeof(buf));
796 if (flags & F_PREF_ELIGIBLE0x001)
797 strlcat(buf, ", valid", sizeof(buf));
798 if (flags & F_PREF_BEST0x002)
799 strlcat(buf, ", best", sizeof(buf));
800 if (flags & F_PREF_ECMP0x100)
801 strlcat(buf, ", ecmp", sizeof(buf));
802 if (flags & F_PREF_AS_WIDE0x200)
803 strlcat(buf, ", as-wide", sizeof(buf));
804 if (flags & F_PREF_ANNOUNCE0x008)
805 strlcat(buf, ", announced", sizeof(buf));
806 if (strlen(buf) >= sizeof(buf) - 1)
807 errx(1, "%s buffer too small", __func__);
808 }
809
810 return buf;
811}
812
813const char *
814fmt_ovs(uint8_t validation_state, int sum)
815{
816 switch (validation_state) {
817 case ROA_INVALID0x1:
818 return (sum ? "!" : "invalid");
819 case ROA_VALID0x2:
820 return (sum ? "V" : "valid");
821 default:
822 return (sum ? "N" : "not-found");
823 }
824}
825
826const char *
827fmt_avs(uint8_t validation_state, int sum)
828{
829 switch (validation_state) {
830 case ASPA_INVALID0x01:
831 return (sum ? "!" : "invalid");
832 case ASPA_VALID0x02:
833 return (sum ? "V" : "valid");
834 default:
835 return (sum ? "?" : "unknown");
836 }
837}
838
839const char *
840fmt_mem(long long num)
841{
842 static char buf[16];
843
844 if (fmt_scaled(num, buf) == -1)
845 snprintf(buf, sizeof(buf), "%lldB", num);
846
847 return (buf);
848}
849
850const char *
851fmt_errstr(uint8_t errcode, uint8_t subcode)
852{
853 static char errbuf[256];
854 const char *errstr = NULL((void *)0);
855 const char *suberr = NULL((void *)0);
856 int uk = 0;
857
858 if (errcode == 0) /* no error */
859 return NULL((void *)0);
860
861 if (errcode < sizeof(errnames)/sizeof(char *))
862 errstr = errnames[errcode];
863
864 switch (errcode) {
865 case ERR_HEADER:
866 if (subcode < sizeof(suberr_header_names)/sizeof(char *))
867 suberr = suberr_header_names[subcode];
868 else
869 uk = 1;
870 break;
871 case ERR_OPEN:
872 if (subcode < sizeof(suberr_open_names)/sizeof(char *))
873 suberr = suberr_open_names[subcode];
874 else
875 uk = 1;
876 break;
877 case ERR_UPDATE:
878 if (subcode < sizeof(suberr_update_names)/sizeof(char *))
879 suberr = suberr_update_names[subcode];
880 else
881 uk = 1;
882 break;
883 case ERR_HOLDTIMEREXPIRED:
884 if (subcode != 0)
885 uk = 1;
886 break;
887 case ERR_FSM:
888 if (subcode < sizeof(suberr_fsm_names)/sizeof(char *))
889 suberr = suberr_fsm_names[subcode];
890 else
891 uk = 1;
892 break;
893 case ERR_CEASE:
894 if (subcode < sizeof(suberr_cease_names)/sizeof(char *))
895 suberr = suberr_cease_names[subcode];
896 else
897 uk = 1;
898 break;
899 default:
900 snprintf(errbuf, sizeof(errbuf),
901 "unknown error code %u subcode %u", errcode, subcode);
902 return (errbuf);
903 }
904
905 if (uk)
906 snprintf(errbuf, sizeof(errbuf),
907 "%s, unknown subcode %u", errstr, subcode);
908 else if (suberr == NULL((void *)0))
909 return (errstr);
910 else
911 snprintf(errbuf, sizeof(errbuf),
912 "%s, %s", errstr, suberr);
913
914 return (errbuf);
915}
916
917const char *
918fmt_attr(uint8_t type, int flags)
919{
920#define CHECK_FLAGS(s, t, m) \
921 if (((s) & ~(ATTR_DEFMASK(0x0f | 0x10) | (m))) != (t)) pflags = 1
922
923 static char cstr[48];
924 int pflags = 0;
925
926 switch (type) {
927 case ATTR_ORIGIN:
928 CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0);
929 strlcpy(cstr, "Origin", sizeof(cstr));
930 break;
931 case ATTR_ASPATH:
932 CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0);
933 strlcpy(cstr, "AS-Path", sizeof(cstr));
934 break;
935 case ATTR_AS4_PATH:
936 CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0);
937 strlcpy(cstr, "AS4-Path", sizeof(cstr));
938 break;
939 case ATTR_NEXTHOP:
940 CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0);
941 strlcpy(cstr, "Nexthop", sizeof(cstr));
942 break;
943 case ATTR_MED:
944 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0);
945 strlcpy(cstr, "Med", sizeof(cstr));
946 break;
947 case ATTR_LOCALPREF:
948 CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0);
949 strlcpy(cstr, "Localpref", sizeof(cstr));
950 break;
951 case ATTR_ATOMIC_AGGREGATE:
952 CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0);
953 strlcpy(cstr, "Atomic Aggregate", sizeof(cstr));
954 break;
955 case ATTR_AGGREGATOR:
956 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20);
957 strlcpy(cstr, "Aggregator", sizeof(cstr));
958 break;
959 case ATTR_AS4_AGGREGATOR:
960 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20);
961 strlcpy(cstr, "AS4-Aggregator", sizeof(cstr));
962 break;
963 case ATTR_COMMUNITIES:
964 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20);
965 strlcpy(cstr, "Communities", sizeof(cstr));
966 break;
967 case ATTR_ORIGINATOR_ID:
968 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0);
969 strlcpy(cstr, "Originator Id", sizeof(cstr));
970 break;
971 case ATTR_CLUSTER_LIST:
972 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0);
973 strlcpy(cstr, "Cluster Id List", sizeof(cstr));
974 break;
975 case ATTR_MP_REACH_NLRI:
976 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0);
977 strlcpy(cstr, "MP Reach NLRI", sizeof(cstr));
978 break;
979 case ATTR_MP_UNREACH_NLRI:
980 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0);
981 strlcpy(cstr, "MP Unreach NLRI", sizeof(cstr));
982 break;
983 case ATTR_EXT_COMMUNITIES:
984 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20);
985 strlcpy(cstr, "Ext. Communities", sizeof(cstr));
986 break;
987 case ATTR_LARGE_COMMUNITIES:
988 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20);
989 strlcpy(cstr, "Large Communities", sizeof(cstr));
990 break;
991 case ATTR_OTC:
992 CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20);
993 strlcpy(cstr, "OTC", sizeof(cstr));
994 break;
995 default:
996 /* ignore unknown attributes */
997 snprintf(cstr, sizeof(cstr), "Unknown Attribute #%u", type);
998 pflags = 1;
999 break;
1000 }
1001 if (flags != -1 && pflags) {
1002 strlcat(cstr, " flags [", sizeof(cstr));
1003 if (flags & ATTR_OPTIONAL0x80)
1004 strlcat(cstr, "O", sizeof(cstr));
1005 if (flags & ATTR_TRANSITIVE0x40)
1006 strlcat(cstr, "T", sizeof(cstr));
1007 if (flags & ATTR_PARTIAL0x20)
1008 strlcat(cstr, "P", sizeof(cstr));
1009 strlcat(cstr, "]", sizeof(cstr));
1010 }
1011 return (cstr);
1012
1013#undef CHECK_FLAGS
1014}
1015
1016const char *
1017fmt_community(uint16_t a, uint16_t v)
1018{
1019 static char buf[12];
1020
1021 if (a == COMMUNITY_WELLKNOWN0xffff)
1022 switch (v) {
1023 case COMMUNITY_GRACEFUL_SHUTDOWN0x0000:
1024 return "GRACEFUL_SHUTDOWN";
1025 case COMMUNITY_NO_EXPORT0xff01:
1026 return "NO_EXPORT";
1027 case COMMUNITY_NO_ADVERTISE0xff02:
1028 return "NO_ADVERTISE";
1029 case COMMUNITY_NO_EXPSUBCONFED0xff03:
1030 return "NO_EXPORT_SUBCONFED";
1031 case COMMUNITY_NO_PEER0xff04:
1032 return "NO_PEER";
1033 case COMMUNITY_BLACKHOLE0x029A:
1034 return "BLACKHOLE";
1035 default:
1036 break;
1037 }
1038
1039 snprintf(buf, sizeof(buf), "%hu:%hu", a, v);
1040 return buf;
1041}
1042
1043const char *
1044fmt_large_community(uint32_t d1, uint32_t d2, uint32_t d3)
1045{
1046 static char buf[33];
1047
1048 snprintf(buf, sizeof(buf), "%u:%u:%u", d1, d2, d3);
1049 return buf;
1050}
1051
1052const char *
1053fmt_ext_community(uint8_t *data)
1054{
1055 static char buf[32];
1056 uint64_t ext;
1057 struct in_addr ip;
1058 uint32_t as4, u32;
1059 uint16_t as2, u16;
1060 uint8_t type, subtype;
1061
1062 type = data[0];
1063 subtype = data[1];
1064
1065 switch (type) {
1066 case EXT_COMMUNITY_TRANS_TWO_AS0x00:
1067 case EXT_COMMUNITY_GEN_TWO_AS0x80:
1068 memcpy(&as2, data + 2, sizeof(as2));
1069 memcpy(&u32, data + 4, sizeof(u32));
1070 snprintf(buf, sizeof(buf), "%s %s:%u",
1071 log_ext_subtype(type, subtype),
1072 log_as(ntohs(as2)(__uint16_t)(__builtin_constant_p(as2) ? (__uint16_t)(((__uint16_t
)(as2) & 0xffU) << 8 | ((__uint16_t)(as2) & 0xff00U
) >> 8) : __swap16md(as2))), ntohl(u32)(__uint32_t)(__builtin_constant_p(u32) ? (__uint32_t)(((__uint32_t
)(u32) & 0xff) << 24 | ((__uint32_t)(u32) & 0xff00
) << 8 | ((__uint32_t)(u32) & 0xff0000) >> 8 |
((__uint32_t)(u32) & 0xff000000) >> 24) : __swap32md
(u32)));
1073 return buf;
1074 case EXT_COMMUNITY_TRANS_IPV40x01:
1075 case EXT_COMMUNITY_GEN_IPV40x81:
1076 memcpy(&ip, data + 2, sizeof(ip));
1077 memcpy(&u16, data + 6, sizeof(u16));
1078 snprintf(buf, sizeof(buf), "%s %s:%hu",
1079 log_ext_subtype(type, subtype),
1080 inet_ntoa(ip), ntohs(u16)(__uint16_t)(__builtin_constant_p(u16) ? (__uint16_t)(((__uint16_t
)(u16) & 0xffU) << 8 | ((__uint16_t)(u16) & 0xff00U
) >> 8) : __swap16md(u16)));
1081 return buf;
1082 case EXT_COMMUNITY_TRANS_FOUR_AS0x02:
1083 case EXT_COMMUNITY_GEN_FOUR_AS0x82:
1084 memcpy(&as4, data + 2, sizeof(as4));
1085 memcpy(&u16, data + 6, sizeof(u16));
1086 snprintf(buf, sizeof(buf), "%s %s:%hu",
1087 log_ext_subtype(type, subtype),
1088 log_as(ntohl(as4)(__uint32_t)(__builtin_constant_p(as4) ? (__uint32_t)(((__uint32_t
)(as4) & 0xff) << 24 | ((__uint32_t)(as4) & 0xff00
) << 8 | ((__uint32_t)(as4) & 0xff0000) >> 8 |
((__uint32_t)(as4) & 0xff000000) >> 24) : __swap32md
(as4))), ntohs(u16)(__uint16_t)(__builtin_constant_p(u16) ? (__uint16_t)(((__uint16_t
)(u16) & 0xffU) << 8 | ((__uint16_t)(u16) & 0xff00U
) >> 8) : __swap16md(u16)));
1089 return buf;
1090 case EXT_COMMUNITY_TRANS_OPAQUE0x03:
1091 case EXT_COMMUNITY_TRANS_EVPN0x06:
1092 memcpy(&ext, data, sizeof(ext));
1093 ext = be64toh(ext)(__uint64_t)(__builtin_constant_p(ext) ? (__uint64_t)((((__uint64_t
)(ext) & 0xff) << 56) | ((__uint64_t)(ext) & 0xff00ULL
) << 40 | ((__uint64_t)(ext) & 0xff0000ULL) <<
24 | ((__uint64_t)(ext) & 0xff000000ULL) << 8 | ((
__uint64_t)(ext) & 0xff00000000ULL) >> 8 | ((__uint64_t
)(ext) & 0xff0000000000ULL) >> 24 | ((__uint64_t)(ext
) & 0xff000000000000ULL) >> 40 | ((__uint64_t)(ext)
& 0xff00000000000000ULL) >> 56) : __swap64md(ext)) & 0xffffffffffffLL;
1094 snprintf(buf, sizeof(buf), "%s 0x%llx",
1095 log_ext_subtype(type, subtype), (unsigned long long)ext);
1096 return buf;
1097 case EXT_COMMUNITY_NON_TRANS_OPAQUE0x43:
1098 memcpy(&ext, data, sizeof(ext));
1099 ext = be64toh(ext)(__uint64_t)(__builtin_constant_p(ext) ? (__uint64_t)((((__uint64_t
)(ext) & 0xff) << 56) | ((__uint64_t)(ext) & 0xff00ULL
) << 40 | ((__uint64_t)(ext) & 0xff0000ULL) <<
24 | ((__uint64_t)(ext) & 0xff000000ULL) << 8 | ((
__uint64_t)(ext) & 0xff00000000ULL) >> 8 | ((__uint64_t
)(ext) & 0xff0000000000ULL) >> 24 | ((__uint64_t)(ext
) & 0xff000000000000ULL) >> 40 | ((__uint64_t)(ext)
& 0xff00000000000000ULL) >> 56) : __swap64md(ext)) & 0xffffffffffffLL;
1100 if (subtype == EXT_COMMUNITY_SUBTYPE_OVS0) {
1101 switch (ext) {
1102 case EXT_COMMUNITY_OVS_VALID0:
1103 snprintf(buf, sizeof(buf), "%s valid",
1104 log_ext_subtype(type, subtype));
1105 return buf;
1106 case EXT_COMMUNITY_OVS_NOTFOUND1:
1107 snprintf(buf, sizeof(buf), "%s not-found",
1108 log_ext_subtype(type, subtype));
1109 return buf;
1110 case EXT_COMMUNITY_OVS_INVALID2:
1111 snprintf(buf, sizeof(buf), "%s invalid",
1112 log_ext_subtype(type, subtype));
1113 return buf;
1114 default:
1115 snprintf(buf, sizeof(buf), "%s 0x%llx",
1116 log_ext_subtype(type, subtype),
1117 (unsigned long long)ext);
1118 return buf;
1119 }
1120 } else {
1121 snprintf(buf, sizeof(buf), "%s 0x%llx",
1122 log_ext_subtype(type, subtype),
1123 (unsigned long long)ext);
1124 return buf;
1125 }
1126 break;
1127 default:
1128 memcpy(&ext, data, sizeof(ext));
1129 snprintf(buf, sizeof(buf), "%s 0x%llx",
1130 log_ext_subtype(type, subtype),
1131 (unsigned long long)be64toh(ext)(__uint64_t)(__builtin_constant_p(ext) ? (__uint64_t)((((__uint64_t
)(ext) & 0xff) << 56) | ((__uint64_t)(ext) & 0xff00ULL
) << 40 | ((__uint64_t)(ext) & 0xff0000ULL) <<
24 | ((__uint64_t)(ext) & 0xff000000ULL) << 8 | ((
__uint64_t)(ext) & 0xff00000000ULL) >> 8 | ((__uint64_t
)(ext) & 0xff0000000000ULL) >> 24 | ((__uint64_t)(ext
) & 0xff000000000000ULL) >> 40 | ((__uint64_t)(ext)
& 0xff00000000000000ULL) >> 56) : __swap64md(ext)));
1132 return buf;
1133 }
1134}
1135
1136const char *
1137fmt_set_type(struct ctl_show_set *set)
1138{
1139 switch (set->type) {
1140 case ASPA_SET:
1141 return "ASPA";
1142 case ROA_SET:
1143 return "ROA";
1144 case PREFIX_SET:
1145 return "PREFIX";
1146 case ORIGIN_SET:
1147 return "ORIGIN";
1148 case ASNUM_SET:
1149 return "ASNUM";
1150 default:
1151 return "BULA";
1152 }
1153}
1154
1155void
1156send_filterset(struct imsgbuf *i, struct filter_set_head *set)
1157{
1158 struct filter_set *s;
1159
1160 while ((s = TAILQ_FIRST(set)((set)->tqh_first)) != NULL((void *)0)) {
1161 imsg_compose(i, IMSG_FILTER_SET, 0, 0, -1, s,
1162 sizeof(struct filter_set));
1163 TAILQ_REMOVE(set, s, entry)do { if (((s)->entry.tqe_next) != ((void *)0)) (s)->entry
.tqe_next->entry.tqe_prev = (s)->entry.tqe_prev; else (
set)->tqh_last = (s)->entry.tqe_prev; *(s)->entry.tqe_prev
= (s)->entry.tqe_next; ; ; } while (0);
1164 free(s);
1165 }
1166}
1167
1168void
1169network_bulk(struct parse_result *res)
1170{
1171 struct network_config net;
1172 struct filter_set *s = NULL((void *)0);
1173 struct bgpd_addr h;
1174 char *line = NULL((void *)0);
1175 size_t linesize = 0;
1176 ssize_t linelen;
1177 uint8_t len;
1178 FILE *f;
1179
1180 if ((f = fdopen(STDIN_FILENO0, "r")) == NULL((void *)0))
1181 err(1, "Failed to open stdin\n");
1182
1183 while ((linelen = getline(&line, &linesize, f)) != -1) {
1184 char *b, *buf = line;
1185 while ((b = strsep(&buf, " \t\n")) != NULL((void *)0)) {
1186 if (*b == '\0') /* skip empty tokens */
1187 continue;
1188 /* Stop processing after a comment */
1189 if (*b == '#')
1190 break;
1191 memset(&net, 0, sizeof(net));
1192 if (parse_prefix(b, strlen(b), &h, &len) != 1)
1193 errx(1, "bad prefix: %s", b);
1194 net.prefix = h;
1195 net.prefixlen = len;
1196 net.rd = res->rd;
1197
1198 if (res->action == NETWORK_BULK_ADD) {
1199 imsg_compose(imsgbuf, IMSG_NETWORK_ADD,
1200 0, 0, -1, &net, sizeof(net));
1201 /*
1202 * can't use send_filterset since that
1203 * would free the set.
1204 */
1205 TAILQ_FOREACH(s, &res->set, entry)for((s) = ((&res->set)->tqh_first); (s) != ((void *
)0); (s) = ((s)->entry.tqe_next)) {
1206 imsg_compose(imsgbuf,
1207 IMSG_FILTER_SET,
1208 0, 0, -1, s, sizeof(*s));
1209 }
1210 imsg_compose(imsgbuf, IMSG_NETWORK_DONE,
1211 0, 0, -1, NULL((void *)0), 0);
1212 } else
1213 imsg_compose(imsgbuf, IMSG_NETWORK_REMOVE,
1214 0, 0, -1, &net, sizeof(net));
1215 }
1216 }
1217 free(line);
1218 if (ferror(f)(!__isthreaded ? (((f)->_flags & 0x0040) != 0) : (ferror
)(f)))
1219 err(1, "getline");
1220 fclose(f);
1221}
1222
1223void
1224show_mrt_dump_neighbors(struct mrt_rib *mr, struct mrt_peer *mp, void *arg)
1225{
1226 struct mrt_peer_entry *p;
1227 struct in_addr ina;
1228 uint16_t i;
1229
1230 ina.s_addr = htonl(mp->bgp_id)(__uint32_t)(__builtin_constant_p(mp->bgp_id) ? (__uint32_t
)(((__uint32_t)(mp->bgp_id) & 0xff) << 24 | ((__uint32_t
)(mp->bgp_id) & 0xff00) << 8 | ((__uint32_t)(mp->
bgp_id) & 0xff0000) >> 8 | ((__uint32_t)(mp->bgp_id
) & 0xff000000) >> 24) : __swap32md(mp->bgp_id));
1231 printf("view: %s BGP ID: %s Number of peers: %u\n\n",
1232 mp->view, inet_ntoa(ina), mp->npeers);
1233 printf("%-30s %8s %15s\n", "Neighbor", "AS", "BGP ID");
1234 for (i = 0; i < mp->npeers; i++) {
1235 p = &mp->peers[i];
1236 ina.s_addr = htonl(p->bgp_id)(__uint32_t)(__builtin_constant_p(p->bgp_id) ? (__uint32_t
)(((__uint32_t)(p->bgp_id) & 0xff) << 24 | ((__uint32_t
)(p->bgp_id) & 0xff00) << 8 | ((__uint32_t)(p->
bgp_id) & 0xff0000) >> 8 | ((__uint32_t)(p->bgp_id
) & 0xff000000) >> 24) : __swap32md(p->bgp_id));
1237 printf("%-30s %8u %15s\n", log_addr(&p->addr), p->asnum,
1238 inet_ntoa(ina));
1239 }
1240 /* we only print the first message */
1241 exit(0);
1242}
1243
1244void
1245show_mrt_dump(struct mrt_rib *mr, struct mrt_peer *mp, void *arg)
1246{
1247 struct ctl_show_rib ctl;
1248 struct parse_result res;
1249 struct ctl_show_rib_request *req = arg;
1250 struct mrt_rib_entry *mre;
1251 time_t now;
1252 uint16_t i, j;
1253
1254 memset(&res, 0, sizeof(res));
1255 res.flags = req->flags;
1256 now = time(NULL((void *)0));
1257
1258 for (i = 0; i < mr->nentries; i++) {
1259 mre = &mr->entries[i];
1260 memset(&ctl, 0, sizeof(ctl));
1261 ctl.prefix = mr->prefix;
1262 ctl.prefixlen = mr->prefixlen;
1263 if (mre->originated <= now)
1264 ctl.age = now - mre->originated;
1265 ctl.true_nexthop = mre->nexthop;
1266 ctl.exit_nexthop = mre->nexthop;
1267 ctl.origin = mre->origin;
1268 ctl.local_pref = mre->local_pref;
1269 ctl.med = mre->med;
1270 /* weight is not part of the mrt dump so it can't be set */
1271 if (mr->add_path) {
1272 ctl.flags |= F_PREF_PATH_ID0x040;
1273 ctl.path_id = mre->path_id;
1274 }
1275
1276 if (mre->peer_idx < mp->npeers) {
1277 ctl.remote_addr = mp->peers[mre->peer_idx].addr;
1278 ctl.remote_id = mp->peers[mre->peer_idx].bgp_id;
1279 }
1280
1281 /* filter by neighbor */
1282 if (req->neighbor.addr.aid != AID_UNSPEC0 &&
1283 memcmp(&req->neighbor.addr, &ctl.remote_addr,
1284 sizeof(ctl.remote_addr)) != 0)
1285 continue;
1286 /* filter by AF */
1287 if (req->aid && req->aid != ctl.prefix.aid)
1288 return;
1289 /* filter by prefix */
1290 if (req->prefix.aid != AID_UNSPEC0) {
1291 if (req->flags & F_LONGER0x0200) {
1292 if (req->prefixlen > ctl.prefixlen)
1293 return;
1294 if (prefix_compare(&req->prefix, &ctl.prefix,
1295 req->prefixlen))
1296 return;
1297 } else if (req->flags & F_SHORTER0x0400) {
1298 if (req->prefixlen < ctl.prefixlen)
1299 return;
1300 if (prefix_compare(&req->prefix, &ctl.prefix,
1301 ctl.prefixlen))
1302 return;
1303 } else {
1304 if (req->prefixlen != ctl.prefixlen)
1305 return;
1306 if (prefix_compare(&req->prefix, &ctl.prefix,
1307 req->prefixlen))
1308 return;
1309 }
1310 }
1311 /* filter by AS */
1312 if (req->as.type != AS_UNDEF &&
1313 !match_aspath(mre->aspath, mre->aspath_len, &req->as))
1314 continue;
1315
1316 output->rib(&ctl, mre->aspath, mre->aspath_len, &res);
1317 if (req->flags & F_CTL_DETAIL0x1000) {
1318 for (j = 0; j < mre->nattrs; j++)
1319 output->attr(mre->attrs[j].attr,
1320 mre->attrs[j].attr_len, req->flags, 0);
1321 }
1322 }
1323}
1324
1325void
1326network_mrt_dump(struct mrt_rib *mr, struct mrt_peer *mp, void *arg)
1327{
1328 struct ctl_show_rib ctl;
1329 struct network_config net;
1330 struct ctl_show_rib_request *req = arg;
1331 struct mrt_rib_entry *mre;
1332 struct ibuf *msg;
1333 time_t now;
1334 uint16_t i, j;
1335
1336 /* can't announce more than one path so ignore add-path */
1337 if (mr->add_path)
1338 return;
1339
1340 now = time(NULL((void *)0));
1341 for (i = 0; i < mr->nentries; i++) {
1342 mre = &mr->entries[i];
1343 memset(&ctl, 0, sizeof(ctl));
1344 ctl.prefix = mr->prefix;
1345 ctl.prefixlen = mr->prefixlen;
1346 if (mre->originated <= now)
1347 ctl.age = now - mre->originated;
1348 ctl.true_nexthop = mre->nexthop;
1349 ctl.exit_nexthop = mre->nexthop;
1350 ctl.origin = mre->origin;
1351 ctl.local_pref = mre->local_pref;
1352 ctl.med = mre->med;
1353
1354 if (mre->peer_idx < mp->npeers) {
1355 ctl.remote_addr = mp->peers[mre->peer_idx].addr;
1356 ctl.remote_id = mp->peers[mre->peer_idx].bgp_id;
1357 }
1358
1359 /* filter by neighbor */
1360 if (req->neighbor.addr.aid != AID_UNSPEC0 &&
1361 memcmp(&req->neighbor.addr, &ctl.remote_addr,
1362 sizeof(ctl.remote_addr)) != 0)
1363 continue;
1364 /* filter by AF */
1365 if (req->aid && req->aid != ctl.prefix.aid)
1366 return;
1367 /* filter by prefix */
1368 if (req->prefix.aid != AID_UNSPEC0) {
1369 if (!prefix_compare(&req->prefix, &ctl.prefix,
1370 req->prefixlen)) {
1371 if (req->flags & F_LONGER0x0200) {
1372 if (req->prefixlen > ctl.prefixlen)
1373 return;
1374 } else if (req->prefixlen != ctl.prefixlen)
1375 return;
1376 } else
1377 return;
1378 }
1379 /* filter by AS */
1380 if (req->as.type != AS_UNDEF &&
1381 !match_aspath(mre->aspath, mre->aspath_len, &req->as))
1382 continue;
1383
1384 memset(&net, 0, sizeof(net));
1385 net.prefix = ctl.prefix;
1386 net.prefixlen = ctl.prefixlen;
1387 net.type = NETWORK_MRTCLONE;
1388 /* XXX rd can't be set and will be 0 */
1389
1390 imsg_compose(imsgbuf, IMSG_NETWORK_ADD, 0, 0, -1,
1391 &net, sizeof(net));
1392 if ((msg = imsg_create(imsgbuf, IMSG_NETWORK_ASPATH,
1393 0, 0, sizeof(ctl) + mre->aspath_len)) == NULL((void *)0))
1394 errx(1, "imsg_create failure");
1395 if (imsg_add(msg, &ctl, sizeof(ctl)) == -1 ||
1396 imsg_add(msg, mre->aspath, mre->aspath_len) == -1)
1397 errx(1, "imsg_add failure");
1398 imsg_close(imsgbuf, msg);
1399 for (j = 0; j < mre->nattrs; j++)
1400 imsg_compose(imsgbuf, IMSG_NETWORK_ATTR, 0, 0, -1,
1401 mre->attrs[j].attr, mre->attrs[j].attr_len);
1402 imsg_compose(imsgbuf, IMSG_NETWORK_DONE, 0, 0, -1, NULL((void *)0), 0);
1403
1404 while (imsgbuf->w.queued) {
1405 if (msgbuf_write(&imsgbuf->w) <= 0 && errno(*__errno()) != EAGAIN35)
1406 err(1, "write error");
1407 }
1408 }
1409}
1410
1411static const char *
1412fmt_time(struct timespec *t)
1413{
1414 static char timebuf[32];
1415 static struct timespec prevtime;
1416 struct timespec temp;
1417
1418 timespecsub(t, &prevtime, &temp)do { (&temp)->tv_sec = (t)->tv_sec - (&prevtime
)->tv_sec; (&temp)->tv_nsec = (t)->tv_nsec - (&
prevtime)->tv_nsec; if ((&temp)->tv_nsec < 0) { (
&temp)->tv_sec--; (&temp)->tv_nsec += 1000000000L
; } } while (0);
1419 snprintf(timebuf, sizeof(timebuf), "%lld.%06ld",
1420 (long long)temp.tv_sec, temp.tv_nsec / 1000);
1421 prevtime = *t;
1422 return (timebuf);
1423}
1424
1425void
1426show_mrt_state(struct mrt_bgp_state *ms, void *arg)
1427{
1428 printf("%s %s[%u] -> ", fmt_time(&ms->time),
1429 log_addr(&ms->src), ms->src_as);
1430 printf("%s[%u]: %s -> %s\n", log_addr(&ms->dst), ms->dst_as,
1431 statenames[ms->old_state], statenames[ms->new_state]);
1432}
1433
1434static void
1435print_afi(u_char *p, uint8_t len)
1436{
1437 uint16_t afi;
1438 uint8_t safi, aid;
1439
1440 if (len != 4) {
1441 printf("bad length");
1442 return;
1443 }
1444
1445 /* afi, 2 byte */
1446 memcpy(&afi, p, sizeof(afi));
1447 afi = ntohs(afi)(__uint16_t)(__builtin_constant_p(afi) ? (__uint16_t)(((__uint16_t
)(afi) & 0xffU) << 8 | ((__uint16_t)(afi) & 0xff00U
) >> 8) : __swap16md(afi));
1448 p += 2;
1449 /* reserved, 1 byte */
1450 p += 1;
1451 /* safi, 1 byte */
1452 memcpy(&safi, p, sizeof(safi));
1453 if (afi2aid(afi, safi, &aid) == -1)
1454 printf("unknown afi %u safi %u", afi, safi);
1455 else
1456 printf("%s", aid2str(aid));
1457}
1458
1459static void
1460print_capability(uint8_t capa_code, u_char *p, uint8_t len)
1461{
1462 switch (capa_code) {
1463 case CAPA_MP:
1464 printf("multiprotocol capability: ");
1465 print_afi(p, len);
1466 break;
1467 case CAPA_REFRESH:
1468 printf("route refresh capability");
1469 break;
1470 case CAPA_RESTART:
1471 printf("graceful restart capability");
1472 /* XXX there is more needed here */
1473 break;
1474 case CAPA_AS4BYTE:
1475 printf("4-byte AS num capability: ");
1476 if (len == 4) {
1477 uint32_t as;
1478 memcpy(&as, p, sizeof(as));
1479 as = ntohl(as)(__uint32_t)(__builtin_constant_p(as) ? (__uint32_t)(((__uint32_t
)(as) & 0xff) << 24 | ((__uint32_t)(as) & 0xff00
) << 8 | ((__uint32_t)(as) & 0xff0000) >> 8 |
((__uint32_t)(as) & 0xff000000) >> 24) : __swap32md
(as));
1480 printf("AS %u", as);
1481 } else
1482 printf("bad length");
1483 break;
1484 case CAPA_ADD_PATH:
1485 printf("add-path capability");
1486 /* XXX there is more needed here */
1487 break;
1488 case CAPA_ENHANCED_RR:
1489 printf("enhanced route refresh capability");
1490 break;
1491 default:
1492 printf("unknown capability %u length %u", capa_code, len);
1493 break;
1494 }
1495}
1496
1497static void
1498print_notification(uint8_t errcode, uint8_t subcode)
1499{
1500 const char *suberrname = NULL((void *)0);
1501 int uk = 0;
1502
1503 switch (errcode) {
1504 case ERR_HEADER:
1505 if (subcode >= sizeof(suberr_header_names)/sizeof(char *))
1506 uk = 1;
1507 else
1508 suberrname = suberr_header_names[subcode];
1509 break;
1510 case ERR_OPEN:
1511 if (subcode >= sizeof(suberr_open_names)/sizeof(char *))
1512 uk = 1;
1513 else
1514 suberrname = suberr_open_names[subcode];
1515 break;
1516 case ERR_UPDATE:
1517 if (subcode >= sizeof(suberr_update_names)/sizeof(char *))
1518 uk = 1;
1519 else
1520 suberrname = suberr_update_names[subcode];
1521 break;
1522 case ERR_CEASE:
1523 if (subcode >= sizeof(suberr_cease_names)/sizeof(char *))
1524 uk = 1;
1525 else
1526 suberrname = suberr_cease_names[subcode];
1527 break;
1528 case ERR_HOLDTIMEREXPIRED:
1529 if (subcode != 0)
1530 uk = 1;
1531 break;
1532 case ERR_FSM:
1533 if (subcode >= sizeof(suberr_fsm_names)/sizeof(char *))
1534 uk = 1;
1535 else
1536 suberrname = suberr_fsm_names[subcode];
1537 break;
1538 default:
1539 printf("unknown errcode %u, subcode %u",
1540 errcode, subcode);
1541 return;
1542 }
1543
1544 if (uk)
1545 printf("%s, unknown subcode %u", errnames[errcode], subcode);
1546 else {
1547 if (suberrname == NULL((void *)0))
1548 printf("%s", errnames[errcode]);
1549 else
1550 printf("%s, %s", errnames[errcode], suberrname);
1551 }
1552}
1553
1554static int
1555show_mrt_capabilities(u_char *p, uint16_t len)
1556{
1557 uint16_t totlen = len;
1558 uint8_t capa_code, capa_len;
1559
1560 while (len > 2) {
1561 memcpy(&capa_code, p, sizeof(capa_code));
1562 p += sizeof(capa_code);
1563 len -= sizeof(capa_code);
1564 memcpy(&capa_len, p, sizeof(capa_len));
1565 p += sizeof(capa_len);
1566 len -= sizeof(capa_len);
1567 if (len < capa_len) {
1568 printf("capa_len %u exceeds remaining length",
1569 capa_len);
1570 return (-1);
1571 }
1572 printf("\n ");
1573 print_capability(capa_code, p, capa_len);
1574 p += capa_len;
1575 len -= capa_len;
1576 }
1577 if (len != 0) {
1578 printf("length mismatch while capability parsing");
1579 return (-1);
1580 }
1581 return (totlen);
1582}
1583
1584static void
1585show_mrt_open(u_char *p, uint16_t len)
1586{
1587 uint16_t short_as, holdtime;
1588 uint8_t version, optparamlen;
1589 struct in_addr bgpid;
1590
1591 /* length check up to optparamlen already happened */
1592 memcpy(&version, p, sizeof(version));
1593 p += sizeof(version);
1594 len -= sizeof(version);
1595 memcpy(&short_as, p, sizeof(short_as));
1596 p += sizeof(short_as);
1597 len -= sizeof(short_as);
1598 short_as = ntohs(short_as)(__uint16_t)(__builtin_constant_p(short_as) ? (__uint16_t)(((
__uint16_t)(short_as) & 0xffU) << 8 | ((__uint16_t)
(short_as) & 0xff00U) >> 8) : __swap16md(short_as));
1599 memcpy(&holdtime, p, sizeof(holdtime));
1600 holdtime = ntohs(holdtime)(__uint16_t)(__builtin_constant_p(holdtime) ? (__uint16_t)(((
__uint16_t)(holdtime) & 0xffU) << 8 | ((__uint16_t)
(holdtime) & 0xff00U) >> 8) : __swap16md(holdtime));
1601 p += sizeof(holdtime);
1602 len -= sizeof(holdtime);
1603 memcpy(&bgpid, p, sizeof(bgpid));
1604 p += sizeof(bgpid);
1605 len -= sizeof(bgpid);
1606 memcpy(&optparamlen, p, sizeof(optparamlen));
1607 p += sizeof(optparamlen);
1608 len -= sizeof(optparamlen);
1609
1610 printf("\n ");
1611 printf("Version: %d AS: %u Holdtime: %u BGP Id: %s Paramlen: %u",
1612 version, short_as, holdtime, inet_ntoa(bgpid), optparamlen);
1613 if (optparamlen != len) {
1614 printf("optional parameter length mismatch");
1615 return;
1616 }
1617 while (len > 2) {
1618 uint8_t op_type, op_len;
1619 int r;
1620
1621 memcpy(&op_type, p, sizeof(op_type));
1622 p += sizeof(op_type);
1623 len -= sizeof(op_type);
1624 memcpy(&op_len, p, sizeof(op_len));
1625 p += sizeof(op_len);
1626 len -= sizeof(op_len);
1627
1628 printf("\n ");
1629 switch (op_type) {
1630 case OPT_PARAM_CAPABILITIES:
1631 printf("Capabilities: size %u", op_len);
1632 r = show_mrt_capabilities(p, op_len);
1633 if (r == -1)
1634 return;
1635 p += r;
1636 len -= r;
1637 break;
1638 case OPT_PARAM_AUTH:
1639 default:
1640 printf("unsupported optional parameter: type %u",
1641 op_type);
1642 return;
1643 }
1644 }
1645 if (len != 0) {
1646 printf("optional parameter encoding error");
1647 return;
1648 }
1649}
1650
1651static void
1652show_mrt_notification(u_char *p, uint16_t len)
1653{
1654 uint16_t i;
1655 uint8_t errcode, subcode;
1656 size_t reason_len;
1657 char reason[REASON_LEN256];
1658
1659 memcpy(&errcode, p, sizeof(errcode));
1660 p += sizeof(errcode);
1661 len -= sizeof(errcode);
1662
1663 memcpy(&subcode, p, sizeof(subcode));
1664 p += sizeof(subcode);
1665 len -= sizeof(subcode);
1666
1667 printf("\n ");
1668 print_notification(errcode, subcode);
1669
1670 if (errcode == ERR_CEASE && (subcode == ERR_CEASE_ADMIN_DOWN ||
1671 subcode == ERR_CEASE_ADMIN_RESET)) {
1672 if (len > 1) {
1673 reason_len = *p++;
1674 len--;
1675 if (len < reason_len) {
1676 printf("truncated shutdown reason");
1677 return;
1678 }
1679 if (reason_len > REASON_LEN256 - 1) {
1680 printf("overly long shutdown reason");
1681 return;
1682 }
1683 memcpy(reason, p, reason_len);
1684 reason[reason_len] = '\0';
1685 printf("shutdown reason: \"%s\"",
1686 log_reason(reason));
1687 p += reason_len;
1688 len -= reason_len;
1689 }
1690 }
1691 if (errcode == ERR_OPEN && subcode == ERR_OPEN_CAPA) {
1692 int r;
1693
1694 r = show_mrt_capabilities(p, len);
1695 if (r == -1)
1696 return;
1697 p += r;
1698 len -= r;
1699 }
1700
1701 if (len > 0) {
1702 printf("\n additional data %u bytes", len);
1703 for (i = 0; i < len; i++) {
1704 if (i % 16 == 0)
1705 printf("\n ");
1706 if (i % 8 == 0)
1707 printf(" ");
1708 printf(" %02X", *p++);
1709 }
1710 }
1711}
1712
1713/* XXX this function does not handle JSON output */
1714static void
1715show_mrt_update(u_char *p, uint16_t len, int reqflags, int addpath)
1716{
1717 struct bgpd_addr prefix;
1718 int pos;
1719 uint32_t pathid;
1720 uint16_t wlen, alen;
1721 uint8_t prefixlen;
1722
1723 if (len < sizeof(wlen)) {
1724 printf("bad length");
1725 return;
1726 }
1727 memcpy(&wlen, p, sizeof(wlen));
1728 wlen = ntohs(wlen)(__uint16_t)(__builtin_constant_p(wlen) ? (__uint16_t)(((__uint16_t
)(wlen) & 0xffU) << 8 | ((__uint16_t)(wlen) & 0xff00U
) >> 8) : __swap16md(wlen));
1729 p += sizeof(wlen);
1730 len -= sizeof(wlen);
1731
1732 if (len < wlen) {
1733 printf("bad withdraw length");
1734 return;
1735 }
1736 if (wlen > 0) {
1737 printf("\n Withdrawn prefixes:");
1738 while (wlen > 0) {
1739 if (addpath) {
1740 if (wlen <= sizeof(pathid)) {
1741 printf("bad withdraw prefix");
1742 return;
1743 }
1744 memcpy(&pathid, p, sizeof(pathid));
1745 pathid = ntohl(pathid)(__uint32_t)(__builtin_constant_p(pathid) ? (__uint32_t)(((__uint32_t
)(pathid) & 0xff) << 24 | ((__uint32_t)(pathid) &
0xff00) << 8 | ((__uint32_t)(pathid) & 0xff0000) >>
8 | ((__uint32_t)(pathid) & 0xff000000) >> 24) : __swap32md
(pathid));
1746 p += sizeof(pathid);
1747 len -= sizeof(pathid);
1748 wlen -= sizeof(pathid);
1749 }
1750 if ((pos = nlri_get_prefix(p, wlen, &prefix,
1751 &prefixlen)) == -1) {
1752 printf("bad withdraw prefix");
1753 return;
1754 }
1755 printf(" %s/%u", log_addr(&prefix), prefixlen);
1756 if (addpath)
1757 printf(" path-id %u", pathid);
1758 p += pos;
1759 len -= pos;
1760 wlen -= pos;
1761 }
1762 }
1763
1764 if (len < sizeof(alen)) {
1765 printf("bad length");
1766 return;
1767 }
1768 memcpy(&alen, p, sizeof(alen));
1769 alen = ntohs(alen)(__uint16_t)(__builtin_constant_p(alen) ? (__uint16_t)(((__uint16_t
)(alen) & 0xffU) << 8 | ((__uint16_t)(alen) & 0xff00U
) >> 8) : __swap16md(alen));
1770 p += sizeof(alen);
1771 len -= sizeof(alen);
1772
1773 if (len < alen) {
1774 printf("bad attribute length");
1775 return;
1776 }
1777 printf("\n");
1778 /* alen attributes here */
1779 while (alen > 3) {
1780 uint8_t flags;
1781 uint16_t attrlen;
1782
1783 flags = p[0];
1784 /* type = p[1]; */
1785
1786 /* get the attribute length */
1787 if (flags & ATTR_EXTLEN0x10) {
1788 if (len < sizeof(attrlen) + 2)
1789 printf("bad attribute length");
1790 memcpy(&attrlen, &p[2], sizeof(attrlen));
1791 attrlen = ntohs(attrlen)(__uint16_t)(__builtin_constant_p(attrlen) ? (__uint16_t)(((__uint16_t
)(attrlen) & 0xffU) << 8 | ((__uint16_t)(attrlen) &
0xff00U) >> 8) : __swap16md(attrlen));
1792 attrlen += sizeof(attrlen) + 2;
1793 } else {
1794 attrlen = p[2];
1795 attrlen += 1 + 2;
1796 }
1797
1798 output->attr(p, attrlen, reqflags, addpath);
1799 p += attrlen;
1800 alen -= attrlen;
1801 len -= attrlen;
1802 }
1803
1804 if (len > 0) {
1805 printf(" NLRI prefixes:");
1806 while (len > 0) {
1807 if (addpath) {
1808 if (len <= sizeof(pathid)) {
1809 printf(" bad nlri prefix: pathid, "
1810 "len %d", len);
1811 return;
1812 }
1813 memcpy(&pathid, p, sizeof(pathid));
1814 pathid = ntohl(pathid)(__uint32_t)(__builtin_constant_p(pathid) ? (__uint32_t)(((__uint32_t
)(pathid) & 0xff) << 24 | ((__uint32_t)(pathid) &
0xff00) << 8 | ((__uint32_t)(pathid) & 0xff0000) >>
8 | ((__uint32_t)(pathid) & 0xff000000) >> 24) : __swap32md
(pathid));
1815 p += sizeof(pathid);
1816 len -= sizeof(pathid);
1817 }
1818 if ((pos = nlri_get_prefix(p, len, &prefix,
1819 &prefixlen)) == -1) {
1820 printf(" bad nlri prefix");
1821 return;
1822 }
1823 printf(" %s/%u", log_addr(&prefix), prefixlen);
1824 if (addpath)
1825 printf(" path-id %u", pathid);
1826 p += pos;
1827 len -= pos;
1828 }
1829 }
1830}
1831
1832void
1833show_mrt_msg(struct mrt_bgp_msg *mm, void *arg)
1834{
1835 static const uint8_t marker[MSGSIZE_HEADER_MARKER16] = {
1836 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1837 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1838 u_char *p;
1839 uint16_t len;
1840 uint8_t type;
1841 struct ctl_show_rib_request *req = arg;
1842
1843 printf("%s %s[%u] -> ", fmt_time(&mm->time),
1844 log_addr(&mm->src), mm->src_as);
1845 printf("%s[%u]: size %u%s ", log_addr(&mm->dst), mm->dst_as,
1846 mm->msg_len, mm->add_path ? " addpath" : "");
1847 p = mm->msg;
1848 len = mm->msg_len;
1849
1850 if (len < MSGSIZE_HEADER19) {
1851 printf("illegal header length: %u byte\n", len);
1852 return;
1853 }
1854
1855 /* parse BGP message header */
1856 if (memcmp(p, marker, sizeof(marker))) {
1857 printf("incorrect marker in BGP message\n");
1858 return;
1859 }
1860 p += MSGSIZE_HEADER_MARKER16;
1861
1862 memcpy(&len, p, 2);
1863 len = ntohs(len)(__uint16_t)(__builtin_constant_p(len) ? (__uint16_t)(((__uint16_t
)(len) & 0xffU) << 8 | ((__uint16_t)(len) & 0xff00U
) >> 8) : __swap16md(len));
1864 p += 2;
1865 memcpy(&type, p, 1);
1866 p += 1;
1867
1868 if (len < MSGSIZE_HEADER19 || len > MAX_PKTSIZE4096) {
1869 printf("illegal header length: %u byte\n", len);
1870 return;
1871 }
1872
1873 switch (type) {
1874 case OPEN:
1875 printf("%s ", msgtypenames[type]);
1876 if (len < MSGSIZE_OPEN_MIN29) {
1877 printf("illegal length: %u byte\n", len);
1878 return;
1879 }
1880 show_mrt_open(p, len - MSGSIZE_HEADER19);
1881 break;
1882 case NOTIFICATION:
1883 printf("%s ", msgtypenames[type]);
1884 if (len < MSGSIZE_NOTIFICATION_MIN21) {
1885 printf("illegal length: %u byte\n", len);
1886 return;
1887 }
1888 show_mrt_notification(p, len - MSGSIZE_HEADER19);
1889 break;
1890 case UPDATE:
1891 printf("%s ", msgtypenames[type]);
1892 if (len < MSGSIZE_UPDATE_MIN23) {
1893 printf("illegal length: %u byte\n", len);
1894 return;
1895 }
1896 show_mrt_update(p, len - MSGSIZE_HEADER19, req->flags,
1897 mm->add_path);
1898 break;
1899 case KEEPALIVE:
1900 printf("%s ", msgtypenames[type]);
1901 if (len != MSGSIZE_KEEPALIVE19) {
1902 printf("illegal length: %u byte\n", len);
1903 return;
1904 }
1905 /* nothing */
1906 break;
1907 case RREFRESH:
1908 printf("%s ", msgtypenames[type]);
1909 if (len != MSGSIZE_RREFRESH(19 + 4)) {
1910 printf("illegal length: %u byte\n", len);
1911 return;
1912 }
1913 print_afi(p, len);
1914 break;
1915 default:
1916 printf("unknown type %u\n", type);
1917 return;
1918 }
1919 printf("\n");
1920}
1921
1922const char *
1923msg_type(uint8_t type)
1924{
1925 if (type >= sizeof(msgtypenames)/sizeof(msgtypenames[0]))
1926 return "BAD";
1927 return (msgtypenames[type]);
1928}
1929
1930int
1931match_aspath(void *data, uint16_t len, struct filter_as *f)
1932{
1933 uint8_t *seg;
1934 int final;
1935 uint16_t seg_size;
1936 uint8_t i, seg_len;
1937 uint32_t as = 0;
1938
1939 if (f->type == AS_EMPTY) {
1940 if (len == 0)
1941 return (1);
1942 else
1943 return (0);
1944 }
1945
1946 seg = data;
1947
1948 /* just check the leftmost AS */
1949 if (f->type == AS_PEER && len >= 6) {
1950 as = aspath_extract(seg, 0);
1951 if (f->as_min == as)
1952 return (1);
1953 else
1954 return (0);
1955 }
1956
1957 for (; len >= 6; len -= seg_size, seg += seg_size) {
1958 seg_len = seg[1];
1959 seg_size = 2 + sizeof(uint32_t) * seg_len;
1960
1961 final = (len == seg_size);
1962
1963 if (f->type == AS_SOURCE) {
1964 /*
1965 * Just extract the rightmost AS
1966 * but if that segment is an AS_SET then the rightmost
1967 * AS of a previous AS_SEQUENCE segment should be used.
1968 * Because of that just look at AS_SEQUENCE segments.
1969 */
1970 if (seg[0] == AS_SEQUENCE2)
1971 as = aspath_extract(seg, seg_len - 1);
1972 /* not yet in the final segment */
1973 if (!final)
1974 continue;
1975 if (f->as_min == as)
1976 return (1);
1977 else
1978 return (0);
1979 }
1980 /* AS_TRANSIT or AS_ALL */
1981 for (i = 0; i < seg_len; i++) {
1982 /*
1983 * the source (rightmost) AS is excluded from
1984 * AS_TRANSIT matches.
1985 */
1986 if (final && i == seg_len - 1 && f->type == AS_TRANSIT)
1987 return (0);
1988 as = aspath_extract(seg, i);
1989 if (f->as_min == as)
1990 return (1);
1991 }
1992 }
1993 return (0);
1994}
1995
1996static void
1997component_finish(int type, uint8_t *data, int len)
1998{
1999 uint8_t *last;
2000 int i;
2001
2002 switch (type) {
2003 case FLOWSPEC_TYPE_DEST1:
2004 case FLOWSPEC_TYPE_SOURCE2:
2005 /* nothing todo */
2006 return;
2007 default:
2008 break;
2009 }
2010
2011 i = 0;
2012 do {
2013 last = data + i;
2014 i += FLOWSPEC_OP_LEN(*last)(1 << (((*last) & 0x30) >> 4)) + 1;
2015 } while (i < len);
2016 *last |= FLOWSPEC_OP_EOL0x80;
2017}
2018
2019static void
2020push_prefix(struct parse_result *r, int type, struct bgpd_addr *addr,
2021 uint8_t len)
2022{
2023 void *data;
2024 uint8_t *comp;
2025 int complen, l;
2026
2027 switch (addr->aid) {
2028 case AID_UNSPEC0:
2029 return;
2030 case AID_INET1:
2031 complen = PREFIX_SIZE(len)(((len) + 7) / 8 + 1);
2032 data = &addr->v4ba.v4;
2033 break;
2034 case AID_INET62:
2035 /* IPv6 includes an offset byte */
2036 complen = PREFIX_SIZE(len)(((len) + 7) / 8 + 1) + 1;
2037 data = &addr->v6ba.v6;
2038 break;
2039 default:
2040 errx(1, "unsupported address family for flowspec address");
2041 }
2042 comp = malloc(complen);
2043 if (comp == NULL((void *)0))
2044 err(1, NULL((void *)0));
2045
2046 l = 0;
2047 comp[l++] = len;
2048 if (addr->aid == AID_INET62)
2049 comp[l++] = 0;
2050 memcpy(comp + l, data, complen - l);
2051
2052 r->flow.complen[type] = complen;
2053 r->flow.components[type] = comp;
2054}
2055
2056
2057struct flowspec *
2058res_to_flowspec(struct parse_result *r)
2059{
2060 struct flowspec *f;
2061 int i, len = 0;
2062 uint8_t aid;
2063
2064 switch (r->aid) {
2065 case AID_INET1:
2066 aid = AID_FLOWSPECv45;
2067 break;
2068 case AID_INET62:
2069 aid = AID_FLOWSPECv66;
2070 break;
2071 default:
2072 errx(1, "unsupported AFI %s for flowspec rule",
2073 aid2str(r->aid));
2074 }
2075
2076 push_prefix(r, FLOWSPEC_TYPE_DEST1, &r->flow.dst, r->flow.dstlen);
2077 push_prefix(r, FLOWSPEC_TYPE_SOURCE2, &r->flow.src, r->flow.srclen);
2078
2079 for (i = FLOWSPEC_TYPE_MIN1; i < FLOWSPEC_TYPE_MAX14; i++)
2080 if (r->flow.components[i] != NULL((void *)0))
2081 len += r->flow.complen[i] + 1;
2082
2083 if (len == 0)
2084 errx(1, "no flowspec rule defined");
2085
2086 f = malloc(FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)) + len);
2087 if (f == NULL((void *)0))
2088 err(1, NULL((void *)0));
2089 memset(f, 0, FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)));
2090
2091 f->aid = aid;
2092 f->len = len;
2093
2094 len = 0;
2095 for (i = FLOWSPEC_TYPE_MIN1; i < FLOWSPEC_TYPE_MAX14; i++)
2096 if (r->flow.components[i] != NULL((void *)0)) {
2097 f->data[len++] = i;
2098 component_finish(i, r->flow.components[i],
2099 r->flow.complen[i]);
2100 memcpy(f->data + len, r->flow.components[i],
2101 r->flow.complen[i]);
2102 len += r->flow.complen[i];
2103 }
2104
2105 return f;
2106}