1 /* $OpenBSD: ktrstruct.c,v 1.31 2022/12/29 01:36:36 guenther Exp $ */
2
3 /*-
4 * Copyright (c) 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/types.h>
33 #include <sys/resource.h>
34 #include <sys/socket.h>
35 #include <sys/select.h>
36 #include <sys/stat.h>
37 #include <sys/time.h>
38 #include <sys/event.h>
39 #include <sys/un.h>
40 #include <sys/fcntl.h>
41 #include <ufs/ufs/quota.h>
42 #include <netinet/in.h>
43 #include <arpa/inet.h>
44
45 #include <ctype.h>
46 #include <err.h>
47 #include <limits.h>
48 #include <netdb.h>
49 #include <poll.h>
50 #include <signal.h>
51 #include <stddef.h>
52 #include <stdio.h>
53 #include <stdlib.h>
54 #include <stdint.h>
55 #include <string.h>
56 #include <grp.h>
57 #include <pwd.h>
58 #include <unistd.h>
59 #include <vis.h>
60
61 #include "kdump.h"
62 #include "kdump_subr.h"
63
64 #define TIME_FORMAT "%b %e %T %Y"
65
66 static void
ktrsockaddr(struct sockaddr * sa)67 ktrsockaddr(struct sockaddr *sa)
68 {
69 /*
70 * TODO: Support additional address families
71 * #include <netmpls/mpls.h>
72 * struct sockaddr_mpls *mpls;
73 */
74
75 /*
76 * note: ktrstruct() has already verified that sa points to a
77 * buffer at least sizeof(struct sockaddr) bytes long and exactly
78 * sa->sa_len bytes long.
79 */
80 printf("struct sockaddr { ");
81 sockfamilyname(sa->sa_family);
82 printf(", ");
83
84 #define check_sockaddr_len(n) \
85 if (sa_##n->s##n##_len < sizeof(struct sockaddr_##n)) { \
86 printf("invalid"); \
87 break; \
88 }
89
90 switch(sa->sa_family) {
91 case AF_INET: {
92 struct sockaddr_in *sa_in;
93 char addr[INET_ADDRSTRLEN];
94
95 sa_in = (struct sockaddr_in *)sa;
96 check_sockaddr_len(in);
97 inet_ntop(AF_INET, &sa_in->sin_addr, addr, sizeof addr);
98 printf("%s:%u", addr, ntohs(sa_in->sin_port));
99 break;
100 }
101 case AF_INET6: {
102 struct sockaddr_in6 *sa_in6;
103 char addr[INET6_ADDRSTRLEN], scope[12] = { 0 };
104
105 sa_in6 = (struct sockaddr_in6 *)sa;
106 check_sockaddr_len(in6);
107 inet_ntop(AF_INET6, &sa_in6->sin6_addr, addr, sizeof addr);
108 if (sa_in6->sin6_scope_id)
109 snprintf(scope, sizeof(scope), "%%%u",
110 sa_in6->sin6_scope_id);
111 printf("[%s%s]:%u", addr, scope, htons(sa_in6->sin6_port));
112 break;
113 }
114 case AF_UNIX: {
115 struct sockaddr_un *sa_un;
116 char path[4 * sizeof(sa_un->sun_path) + 1];
117 size_t len;
118
119 sa_un = (struct sockaddr_un *)sa;
120 len = sa_un->sun_len;
121 if (len <= offsetof(struct sockaddr_un, sun_path)) {
122 printf("invalid");
123 break;
124 }
125 len -= offsetof(struct sockaddr_un, sun_path);
126 if (len > sizeof(sa_un->sun_path)) {
127 printf("too long");
128 break;
129 }
130 /* format, stopping at first NUL */
131 len = strnlen(sa_un->sun_path, len);
132 strvisx(path, sa_un->sun_path, len,
133 VIS_CSTYLE | VIS_DQ | VIS_TAB | VIS_NL);
134 printf("\"%s\"", path);
135 break;
136 }
137 default:
138 printf("unknown address family");
139 }
140 printf(" }\n");
141 }
142
143 static void
print_time(time_t t,int relative,int have_subsec)144 print_time(time_t t, int relative, int have_subsec)
145 {
146 char timestr[PATH_MAX + 4];
147 struct tm *tm;
148
149 if (t < 0 && have_subsec) {
150 /* negative times with non-zero subsecs require care */
151 printf("-%jd", -(intmax_t)(t + 1));
152 } else
153 printf("%jd", (intmax_t)t);
154
155 /* 1970s times are probably relative */
156 if (!relative && t > (10 * 365 * 24 * 3600)) {
157 tm = localtime(&t);
158 if (tm != NULL) {
159 (void)strftime(timestr, sizeof(timestr), TIME_FORMAT,
160 tm);
161 printf("<\"%s\">", timestr);
162 }
163 }
164 }
165
166 static void
print_timespec(const struct timespec * tsp,int relative)167 print_timespec(const struct timespec *tsp, int relative)
168 {
169 if (tsp->tv_nsec == UTIME_NOW)
170 printf("UTIME_NOW");
171 else if (tsp->tv_nsec == UTIME_OMIT)
172 printf("UTIME_OMIT");
173 else {
174 print_time(tsp->tv_sec, relative, tsp->tv_nsec);
175 if (tsp->tv_nsec != 0)
176 printf(".%09ld", tsp->tv_sec >= 0 ? tsp->tv_nsec :
177 1000000000 - tsp->tv_nsec);
178 }
179 }
180
181 void
uidname(int uid)182 uidname(int uid)
183 {
184 const char *name;
185
186 if (uid == -1)
187 printf("-1");
188 else {
189 printf("%u<", (unsigned)uid);
190 if (uid > UID_MAX || (name = user_from_uid(uid, 1)) == NULL)
191 printf("unknown>");
192 else
193 printf("\"%s\">", name);
194 }
195 }
196
197 void
gidname(int gid)198 gidname(int gid)
199 {
200 const char *name;
201
202 if (gid == -1)
203 printf("-1");
204 else {
205 printf("%u<", (unsigned)gid);
206 if (gid > GID_MAX || (name = group_from_gid(gid, 1)) == NULL)
207 printf("unknown>");
208 else
209 printf("\"%s\">", name);
210 }
211 }
212
213 static void
ktrstat(const struct stat * statp)214 ktrstat(const struct stat *statp)
215 {
216 char mode[12];
217
218 /*
219 * note: ktrstruct() has already verified that statp points to a
220 * buffer exactly sizeof(struct stat) bytes long.
221 */
222 printf("struct stat { ");
223 strmode(statp->st_mode, mode);
224 printf("dev=%d, ino=%llu, mode=%s, nlink=%u, uid=",
225 statp->st_dev, (unsigned long long)statp->st_ino,
226 mode, statp->st_nlink);
227 uidname(statp->st_uid);
228 printf(", gid=");
229 gidname(statp->st_gid);
230 printf(", rdev=%d, ", statp->st_rdev);
231 printf("atime=");
232 print_timespec(&statp->st_atim, 0);
233 printf(", mtime=");
234 print_timespec(&statp->st_mtim, 0);
235 printf(", ctime=");
236 print_timespec(&statp->st_ctim, 0);
237 printf(", size=%lld, blocks=%lld, blksize=%d, flags=0x%x, gen=0x%x",
238 statp->st_size, statp->st_blocks, statp->st_blksize,
239 statp->st_flags, statp->st_gen);
240 printf(" }\n");
241 }
242
243 static void
ktrtimespec(const struct timespec * tsp,int relative)244 ktrtimespec(const struct timespec *tsp, int relative)
245 {
246 printf("struct timespec { ");
247 print_timespec(tsp, relative);
248 printf(" }\n");
249 }
250
251 static void
print_timeval(const struct timeval * tvp,int relative)252 print_timeval(const struct timeval *tvp, int relative)
253 {
254 print_time(tvp->tv_sec, relative, tvp->tv_usec);
255 if (tvp->tv_usec != 0)
256 printf(".%06ld", tvp->tv_sec >= 0 ? tvp->tv_usec :
257 1000000 - tvp->tv_usec);
258 }
259
260 static void
ktrtimeval(const struct timeval * tvp,int relative)261 ktrtimeval(const struct timeval *tvp, int relative)
262 {
263 printf("struct timeval { ");
264 print_timeval(tvp, relative);
265 printf(" }\n");
266 }
267
268 static void
ktrsigaction(const struct sigaction * sa)269 ktrsigaction(const struct sigaction *sa)
270 {
271 /*
272 * note: ktrstruct() has already verified that sa points to a
273 * buffer exactly sizeof(struct sigaction) bytes long.
274 */
275 /*
276 * Fuck! Comparison of function pointers on hppa assumes you can
277 * dereference them if they're plabels! Cast everything to void *
278 * to suppress that extra logic; sorry folks, the address we report
279 * here might not match what you see in your executable...
280 */
281 printf("struct sigaction { ");
282 if ((void *)sa->sa_handler == (void *)SIG_DFL)
283 printf("handler=SIG_DFL");
284 else if ((void *)sa->sa_handler == (void *)SIG_IGN)
285 printf("handler=SIG_IGN");
286 else if (sa->sa_flags & SA_SIGINFO)
287 printf("sigaction=%p", (void *)sa->sa_sigaction);
288 else
289 printf("handler=%p", (void *)sa->sa_handler);
290 printf(", mask=");
291 sigset(sa->sa_mask);
292 printf(", flags=");
293 sigactionflagname(sa->sa_flags);
294 printf(" }\n");
295 }
296
297 static void
print_rlim(rlim_t lim)298 print_rlim(rlim_t lim)
299 {
300 if (lim == RLIM_INFINITY)
301 printf("infinite");
302 else
303 printf("%llu", (unsigned long long)lim);
304 }
305
306 static void
ktrrlimit(const struct rlimit * limp)307 ktrrlimit(const struct rlimit *limp)
308 {
309 printf("struct rlimit { ");
310 printf("cur=");
311 print_rlim(limp->rlim_cur);
312 printf(", max=");
313 print_rlim(limp->rlim_max);
314 printf(" }\n");
315 }
316
317 static void
ktrtfork(const struct __tfork * tf)318 ktrtfork(const struct __tfork *tf)
319 {
320 printf("struct __tfork { tcb=%p, tid=%p, stack=%p }\n",
321 tf->tf_tcb, (void *)tf->tf_tid, tf->tf_stack);
322 }
323
324 static void
ktrfds(const char * data,size_t count)325 ktrfds(const char *data, size_t count)
326 {
327 size_t i;
328 int fd;
329
330 printf("int");
331 if (count > 1)
332 printf(" [%zu] { ", count);
333 for (i = 0; i < count; i++) {
334 memcpy(&fd, &data[i * sizeof(fd)], sizeof(fd));
335 printf("%d%s", fd, i < count - 1 ? ", " : "");
336 }
337 if (count > 1)
338 printf(" }");
339 printf("\n");
340 }
341
342 static void
ktrfdset(struct fd_set * fds,int len)343 ktrfdset(struct fd_set *fds, int len)
344 {
345 int nfds, i, start = -1;
346 char sep = ' ';
347
348 nfds = len * NBBY;
349 printf("struct fd_set {");
350 for (i = 0; i <= nfds; i++)
351 if (i != nfds && FD_ISSET(i, fds)) {
352 if (start == -1)
353 start = i;
354 } else if (start != -1) {
355 putchar(sep);
356 if (start == i - 1)
357 printf("%d", start);
358 else if (start == i - 2)
359 printf("%d,%d", start, i - 1);
360 else
361 printf("%d-%d", start, i - 1);
362 sep = ',';
363 start = -1;
364 }
365
366 printf(" }\n");
367 }
368
369 static void
ktrrusage(const struct rusage * rup)370 ktrrusage(const struct rusage *rup)
371 {
372 printf("struct rusage { utime=");
373 print_timeval(&rup->ru_utime, 1);
374 printf(", stime=");
375 print_timeval(&rup->ru_stime, 1);
376 printf(", maxrss=%ld, ixrss=%ld, idrss=%ld, isrss=%ld,"
377 " minflt=%ld, majflt=%ld, nswap=%ld, inblock=%ld,"
378 " oublock=%ld, msgsnd=%ld, msgrcv=%ld, nsignals=%ld,"
379 " nvcsw=%ld, nivcsw=%ld }\n",
380 rup->ru_maxrss, rup->ru_ixrss, rup->ru_idrss, rup->ru_isrss,
381 rup->ru_minflt, rup->ru_majflt, rup->ru_nswap, rup->ru_inblock,
382 rup->ru_oublock, rup->ru_msgsnd, rup->ru_msgrcv, rup->ru_nsignals,
383 rup->ru_nvcsw, rup->ru_nivcsw);
384 }
385
386 static void
ktrquota(const struct dqblk * quota)387 ktrquota(const struct dqblk *quota)
388 {
389 printf("struct dqblk { bhardlimit=%u, bsoftlimit=%u, curblocks=%u,"
390 " ihardlimit=%u, isoftlimit=%u, curinodes=%u, btime=",
391 quota->dqb_bhardlimit, quota->dqb_bsoftlimit,
392 quota->dqb_curblocks, quota->dqb_ihardlimit,
393 quota->dqb_isoftlimit, quota->dqb_curinodes);
394 print_time(quota->dqb_btime, 0, 0);
395 printf(", itime=");
396 print_time(quota->dqb_itime, 0, 0);
397 printf(" }\n");
398 }
399
400 static void
ktrmmsghdr(const struct mmsghdr * mmsg)401 ktrmmsghdr(const struct mmsghdr *mmsg)
402 {
403 printf("struct mmsghdr { msg_hdr = { name=%p, namelen=%u, "
404 "iov=%p, iovlen=%u, control=%p, controllen=%u, flags=",
405 mmsg->msg_hdr.msg_name, mmsg->msg_hdr.msg_namelen,
406 mmsg->msg_hdr.msg_iov, mmsg->msg_hdr.msg_iovlen,
407 mmsg->msg_hdr.msg_control, mmsg->msg_hdr.msg_controllen);
408 sendrecvflagsname(mmsg->msg_hdr.msg_flags);
409 printf(" }, msg_len = %u }\n", mmsg->msg_len);
410 }
411
412 static void
ktrmsghdr(const struct msghdr * msg)413 ktrmsghdr(const struct msghdr *msg)
414 {
415 printf("struct msghdr { name=%p, namelen=%u, iov=%p, iovlen=%u,"
416 " control=%p, controllen=%u, flags=",
417 msg->msg_name, msg->msg_namelen, msg->msg_iov, msg->msg_iovlen,
418 msg->msg_control, msg->msg_controllen);
419 sendrecvflagsname(msg->msg_flags);
420 printf(" }\n");
421 }
422
423 static void
ktriovec(const char * data,int count)424 ktriovec(const char *data, int count)
425 {
426 struct iovec iov;
427 int i;
428
429 printf("struct iovec");
430 if (count > 1)
431 printf(" [%d]", count);
432 for (i = 0; i < count; i++) {
433 memcpy(&iov, data, sizeof(iov));
434 data += sizeof(iov);
435 printf(" { base=%p, len=%lu }", iov.iov_base, iov.iov_len);
436 }
437 printf("\n");
438 }
439
440 static void
ktrevent(const char * data,int count)441 ktrevent(const char *data, int count)
442 {
443 struct kevent kev;
444 int i;
445
446 printf("struct kevent");
447 if (count > 1)
448 printf(" [%d]", count);
449 for (i = 0; i < count; i++) {
450 memcpy(&kev, data, sizeof(kev));
451 data += sizeof(kev);
452 printf(" { ident=%lu, filter=", kev.ident);
453 evfiltername(kev.filter);
454 printf(", flags=");
455 evflagsname(kev.flags);
456 printf(", fflags=");
457 evfflagsname(kev.filter, kev.fflags);
458 printf(", data=%llu", kev.data);
459 if ((kev.flags & EV_ERROR) && fancy) {
460 printf("<\"%s\">", strerror(kev.data));
461 }
462 printf(", udata=%p }", kev.udata);
463 }
464 printf("\n");
465 }
466
467 static void
ktrpollfd(const char * data,int count)468 ktrpollfd(const char *data, int count)
469 {
470 struct pollfd pfd;
471 int i;
472
473 printf("struct pollfd");
474 if (count > 1)
475 printf(" [%d]", count);
476 for (i = 0; i < count; i++) {
477 memcpy(&pfd, data, sizeof(pfd));
478 data += sizeof(pfd);
479 printf(" { fd=%d, events=", pfd.fd);
480 pollfdeventname(pfd.events);
481 printf(", revents=");
482 pollfdeventname(pfd.revents);
483 printf(" }");
484 }
485 printf("\n");
486 }
487
488 static void
ktrcmsghdr(char * data,socklen_t len)489 ktrcmsghdr(char *data, socklen_t len)
490 {
491 struct msghdr msg;
492 struct cmsghdr *cmsg;
493 int i, count, *fds;
494
495 msg.msg_control = data;
496 msg.msg_controllen = len;
497
498 /* count the control messages */
499 count = 0;
500 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
501 cmsg = CMSG_NXTHDR(&msg, cmsg)) {
502 count++;
503 }
504
505 printf("struct cmsghdr");
506 if (count > 1)
507 printf(" [%d]", count);
508
509 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
510 cmsg = CMSG_NXTHDR(&msg, cmsg)) {
511 printf(" { len=%u, level=", cmsg->cmsg_len);
512 if (cmsg->cmsg_level == SOL_SOCKET) {
513 printf("SOL_SOCKET, type=");
514 switch (cmsg->cmsg_type) {
515 case SCM_RIGHTS:
516 printf("SCM_RIGHTS, data=");
517 fds = (int *)CMSG_DATA(cmsg);
518 for (i = 0;
519 cmsg->cmsg_len > CMSG_LEN(sizeof(int) * i)
520 && (char *)fds + (i + 1) * sizeof(int) <=
521 data + len;
522 i++) {
523 printf("%s%d", i ? "," : "", fds[i]);
524 }
525 break;
526 case SCM_TIMESTAMP:
527 default:
528 printf("%d", cmsg->cmsg_type);
529 break;
530 }
531 } else {
532 struct protoent *p = getprotobynumber(cmsg->cmsg_level);
533
534 printf("%u<%s>, type=%d", cmsg->cmsg_level,
535 p != NULL ? p->p_name : "unknown", cmsg->cmsg_type);
536 }
537 printf(" }");
538 }
539 printf("\n");
540 }
541
542 static void
ktrflock(const struct flock * fl)543 ktrflock(const struct flock *fl)
544 {
545 printf("struct flock { start=%lld, len=%lld, pid=%d, type=",
546 fl->l_start, fl->l_len, fl->l_pid);
547 flocktypename(fl->l_type);
548 printf(", whence=");
549 whencename(fl->l_whence);
550 printf(" }\n");
551 }
552
553 static void
ktrsiginfo(const siginfo_t * si)554 ktrsiginfo(const siginfo_t *si)
555 {
556 printf("siginfo_t { ");
557 siginfo(si, 1);
558 printf(" }\n");
559 }
560
561 void
ktrstruct(char * buf,size_t buflen)562 ktrstruct(char *buf, size_t buflen)
563 {
564 char *name, *data;
565 size_t namelen, datalen;
566 int i;
567
568 for (name = buf, namelen = 0; namelen < buflen && name[namelen] != '\0';
569 ++namelen)
570 /* nothing */;
571 if (namelen == buflen)
572 goto invalid;
573 if (name[namelen] != '\0')
574 goto invalid;
575 data = buf + namelen + 1;
576 datalen = buflen - namelen - 1;
577
578 /* sanity check */
579 for (i = 0; i < namelen; ++i)
580 if (!isalpha((unsigned char)name[i]))
581 goto invalid;
582 if (strcmp(name, "stat") == 0) {
583 struct stat sb;
584
585 if (datalen != sizeof(struct stat))
586 goto invalid;
587 memcpy(&sb, data, datalen);
588 ktrstat(&sb);
589 } else if (strcmp(name, "sockaddr") == 0) {
590 struct sockaddr_storage ss;
591
592 if (datalen > sizeof(ss))
593 goto invalid;
594 if (datalen < offsetof(struct sockaddr_storage, ss_len) +
595 sizeof(ss.ss_len))
596 goto invalid;
597 memcpy(&ss, data, datalen);
598 if ((ss.ss_family != AF_UNIX &&
599 datalen < sizeof(struct sockaddr)) || datalen != ss.ss_len)
600 goto invalid;
601 ktrsockaddr((struct sockaddr *)&ss);
602 } else if (strcmp(name, "abstimespec") == 0 ||
603 strcmp(name, "reltimespec") == 0) {
604 struct timespec ts;
605
606 if (datalen != sizeof(ts))
607 goto invalid;
608 memcpy(&ts, data, datalen);
609 ktrtimespec(&ts, name[0] == 'r');
610 } else if (strcmp(name, "abstimeval") == 0 ||
611 strcmp(name, "reltimeval") == 0) {
612 struct timeval tv;
613
614 if (datalen != sizeof(tv))
615 goto invalid;
616 memcpy(&tv, data, datalen);
617 ktrtimeval(&tv, name[0] == 'r');
618 } else if (strcmp(name, "sigaction") == 0) {
619 struct sigaction sa;
620
621 if (datalen != sizeof(sa))
622 goto invalid;
623 memcpy(&sa, data, datalen);
624 ktrsigaction(&sa);
625 } else if (strcmp(name, "rlimit") == 0) {
626 struct rlimit lim;
627
628 if (datalen != sizeof(lim))
629 goto invalid;
630 memcpy(&lim, data, datalen);
631 ktrrlimit(&lim);
632 } else if (strcmp(name, "rusage") == 0) {
633 struct rusage ru;
634
635 if (datalen != sizeof(ru))
636 goto invalid;
637 memcpy(&ru, data, datalen);
638 ktrrusage(&ru);
639 } else if (strcmp(name, "tfork") == 0) {
640 struct __tfork tf;
641
642 if (datalen != sizeof(tf))
643 goto invalid;
644 memcpy(&tf, data, datalen);
645 ktrtfork(&tf);
646 } else if (strcmp(name, "fds") == 0) {
647 if (datalen % sizeof(int))
648 goto invalid;
649 ktrfds(data, datalen / sizeof(int));
650 } else if (strcmp(name, "fdset") == 0) {
651 struct fd_set *fds;
652
653 if ((fds = malloc(datalen)) == NULL)
654 err(1, "malloc");
655 memcpy(fds, data, datalen);
656 ktrfdset(fds, datalen);
657 free(fds);
658 } else if (strcmp(name, "quota") == 0) {
659 struct dqblk quota;
660
661 if (datalen != sizeof(quota))
662 goto invalid;
663 memcpy("a, data, datalen);
664 ktrquota("a);
665 } else if (strcmp(name, "msghdr") == 0) {
666 struct msghdr msg;
667
668 if (datalen != sizeof(msg))
669 goto invalid;
670 memcpy(&msg, data, datalen);
671 ktrmsghdr(&msg);
672 } else if (strcmp(name, "mmsghdr") == 0) {
673 struct mmsghdr mmsg;
674
675 if (datalen != sizeof(mmsg))
676 goto invalid;
677 memcpy(&mmsg, data, datalen);
678 ktrmmsghdr(&mmsg);
679 } else if (strcmp(name, "iovec") == 0) {
680 if (datalen % sizeof(struct iovec))
681 goto invalid;
682 ktriovec(data, datalen / sizeof(struct iovec));
683 } else if (strcmp(name, "kevent") == 0) {
684 if (datalen % sizeof(struct kevent))
685 goto invalid;
686 ktrevent(data, datalen / sizeof(struct kevent));
687 } else if (strcmp(name, "pollfd") == 0) {
688 if (datalen % sizeof(struct pollfd))
689 goto invalid;
690 ktrpollfd(data, datalen / sizeof(struct pollfd));
691 } else if (strcmp(name, "cmsghdr") == 0) {
692 char *cmsg;
693
694 if (datalen == 0)
695 goto invalid;
696
697 if ((cmsg = malloc(datalen)) == NULL)
698 err(1, "malloc");
699 memcpy(cmsg, data, datalen);
700 ktrcmsghdr(cmsg, datalen);
701 free(cmsg);
702 } else if (strcmp(name, "pledgereq") == 0) {
703 printf("promise=");
704 showbufc(basecol + sizeof("promise=") - 1,
705 (unsigned char *)data, datalen, VIS_DQ | VIS_TAB | VIS_NL);
706 } else if (strcmp(name, "pledgeexecreq") == 0) {
707 printf("execpromise=");
708 showbufc(basecol + sizeof("execpromise=") - 1,
709 (unsigned char *)data, datalen, VIS_DQ | VIS_TAB | VIS_NL);
710 } else if (strcmp(name, "unveil") == 0) {
711 printf("flags=");
712 showbufc(basecol + sizeof("flags=") - 1,
713 (unsigned char *)data, datalen, VIS_DQ | VIS_TAB | VIS_NL);
714 } else if (strcmp(name, "flock") == 0) {
715 struct flock fl;
716
717 if (datalen != sizeof(fl))
718 goto invalid;
719 memcpy(&fl, data, datalen);
720 ktrflock(&fl);
721 } else if (strcmp(name, "siginfo") == 0) {
722 siginfo_t si;
723
724 if (datalen != sizeof(si))
725 goto invalid;
726 memcpy(&si, data, datalen);
727 ktrsiginfo(&si);
728 } else {
729 printf("unknown structure %s\n", name);
730 }
731 return;
732 invalid:
733 printf("invalid record\n");
734 }
735