1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
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 #define _WANT_KERNEL_ERRNO
33 #ifdef __LP64__
34 #define _WANT_KEVENT32
35 #endif
36 #define _WANT_FREEBSD11_KEVENT
37 #define _WANT_FREEBSD_BITSET
38 #include <sys/param.h>
39 #include <sys/capsicum.h>
40 #include <sys/_bitset.h>
41 #include <sys/bitset.h>
42 #include <sys/errno.h>
43 #include <sys/time.h>
44 #include <sys/uio.h>
45 #include <sys/event.h>
46 #include <sys/ktrace.h>
47 #include <sys/mman.h>
48 #include <sys/ioctl.h>
49 #include <sys/poll.h>
50 #include <sys/socket.h>
51 #include <sys/stat.h>
52 #include <sys/sysent.h>
53 #include <sys/umtx.h>
54 #include <sys/un.h>
55 #include <sys/queue.h>
56 #include <sys/wait.h>
57 #ifdef WITH_CASPER
58 #include <sys/nv.h>
59 #endif
60 #include <arpa/inet.h>
61 #include <netinet/in.h>
62 #include <ctype.h>
63 #include <capsicum_helpers.h>
64 #include <err.h>
65 #include <grp.h>
66 #include <inttypes.h>
67 #include <locale.h>
68 #include <netdb.h>
69 #include <nl_types.h>
70 #include <pwd.h>
71 #include <stddef.h>
72 #include <stdio.h>
73 #include <stdlib.h>
74 #include <string.h>
75 #include <sysdecode.h>
76 #include <time.h>
77 #include <unistd.h>
78 #include <vis.h>
79 #include "ktrace.h"
80 #include "kdump.h"
81
82 #ifdef WITH_CASPER
83 #include <libcasper.h>
84
85 #include <casper/cap_grp.h>
86 #include <casper/cap_pwd.h>
87 #endif
88
89 int fetchprocinfo(struct ktr_header *, u_int *);
90 u_int findabi(struct ktr_header *);
91 int fread_tail(void *, int, int);
92 void dumpheader(struct ktr_header *, u_int);
93 void dumptimeval(struct ktr_header_v0 *kth);
94 void dumptimespec(struct ktr_header *kth);
95 void ktrsyscall(struct ktr_syscall *, u_int);
96 void ktrsysret(struct ktr_sysret *, u_int);
97 void ktrnamei(char *, int);
98 void hexdump(char *, int, int);
99 void visdump(char *, int, int);
100 void ktrgenio(struct ktr_genio *, int);
101 void ktrpsig(struct ktr_psig *);
102 void ktrcsw(struct ktr_csw *);
103 void ktrcsw_old(struct ktr_csw_old *);
104 void ktruser(int, void *);
105 void ktrcaprights(cap_rights_t *);
106 void ktritimerval(struct itimerval *it);
107 void ktrsockaddr(struct sockaddr *);
108 void ktrstat(struct stat *);
109 void ktrstruct(char *, size_t);
110 void ktrcapfail(struct ktr_cap_fail *);
111 void ktrfault(struct ktr_fault *);
112 void ktrfaultend(struct ktr_faultend *);
113 void ktrkevent(struct kevent *);
114 void ktrpollfd(struct pollfd *);
115 void ktrstructarray(struct ktr_struct_array *, size_t);
116 void ktrbitset(char *, struct bitset *, size_t);
117 void ktrsyscall_freebsd(struct ktr_syscall *ktr, register_t **resip,
118 int *resnarg, char *resc, u_int sv_flags);
119 void usage(void);
120
121 #define TIMESTAMP_NONE 0x0
122 #define TIMESTAMP_ABSOLUTE 0x1
123 #define TIMESTAMP_ELAPSED 0x2
124 #define TIMESTAMP_RELATIVE 0x4
125
126 bool decimal, fancy = true, resolv;
127 static bool abiflag, suppressdata, syscallno, tail, threads, cpuflag;
128 static int timestamp, maxdata;
129 static const char *tracefile = DEF_TRACEFILE;
130 static struct ktr_header ktr_header;
131 static short version;
132
133 #define TIME_FORMAT "%b %e %T %Y"
134 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
135
136 struct proc_info
137 {
138 TAILQ_ENTRY(proc_info) info;
139 u_int sv_flags;
140 pid_t pid;
141 };
142
143 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
144
145 #ifdef WITH_CASPER
146 static cap_channel_t *cappwd, *capgrp;
147
148 static int
cappwdgrp_setup(cap_channel_t ** cappwdp,cap_channel_t ** capgrpp)149 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
150 {
151 cap_channel_t *capcas, *cappwdloc, *capgrploc;
152 const char *cmds[1], *fields[1];
153
154 capcas = cap_init();
155 if (capcas == NULL) {
156 err(1, "unable to create casper process");
157 exit(1);
158 }
159 cappwdloc = cap_service_open(capcas, "system.pwd");
160 capgrploc = cap_service_open(capcas, "system.grp");
161 /* Casper capability no longer needed. */
162 cap_close(capcas);
163 if (cappwdloc == NULL || capgrploc == NULL) {
164 if (cappwdloc == NULL)
165 warn("unable to open system.pwd service");
166 if (capgrploc == NULL)
167 warn("unable to open system.grp service");
168 exit(1);
169 }
170 /* Limit system.pwd to only getpwuid() function and pw_name field. */
171 cmds[0] = "getpwuid";
172 if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
173 err(1, "unable to limit system.pwd service");
174 fields[0] = "pw_name";
175 if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
176 err(1, "unable to limit system.pwd service");
177 /* Limit system.grp to only getgrgid() function and gr_name field. */
178 cmds[0] = "getgrgid";
179 if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
180 err(1, "unable to limit system.grp service");
181 fields[0] = "gr_name";
182 if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
183 err(1, "unable to limit system.grp service");
184
185 *cappwdp = cappwdloc;
186 *capgrpp = capgrploc;
187 return (0);
188 }
189 #endif /* WITH_CASPER */
190
191 void
print_integer_arg(const char * (* decoder)(int),int value)192 print_integer_arg(const char *(*decoder)(int), int value)
193 {
194 const char *str;
195
196 str = decoder(value);
197 if (str != NULL)
198 printf("%s", str);
199 else {
200 if (decimal)
201 printf("<invalid=%d>", value);
202 else
203 printf("<invalid=%#x>", value);
204 }
205 }
206
207 /* Like print_integer_arg but unknown values are treated as valid. */
208 void
print_integer_arg_valid(const char * (* decoder)(int),int value)209 print_integer_arg_valid(const char *(*decoder)(int), int value)
210 {
211 const char *str;
212
213 str = decoder(value);
214 if (str != NULL)
215 printf("%s", str);
216 else {
217 if (decimal)
218 printf("%d", value);
219 else
220 printf("%#x", value);
221 }
222 }
223
224 bool
print_mask_arg_part(bool (* decoder)(FILE *,int,int *),int value,int * rem)225 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), int value, int *rem)
226 {
227
228 printf("%#x<", value);
229 return (decoder(stdout, value, rem));
230 }
231
232 void
print_mask_arg(bool (* decoder)(FILE *,int,int *),int value)233 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
234 {
235 bool invalid;
236 int rem;
237
238 invalid = !print_mask_arg_part(decoder, value, &rem);
239 printf(">");
240 if (invalid)
241 printf("<invalid>%u", rem);
242 }
243
244 void
print_mask_arg0(bool (* decoder)(FILE *,int,int *),int value)245 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
246 {
247 bool invalid;
248 int rem;
249
250 if (value == 0) {
251 printf("0");
252 return;
253 }
254 printf("%#x<", value);
255 invalid = !decoder(stdout, value, &rem);
256 printf(">");
257 if (invalid)
258 printf("<invalid>%u", rem);
259 }
260
261 static void
decode_fileflags(fflags_t value)262 decode_fileflags(fflags_t value)
263 {
264 bool invalid;
265 fflags_t rem;
266
267 if (value == 0) {
268 printf("0");
269 return;
270 }
271 printf("%#x<", value);
272 invalid = !sysdecode_fileflags(stdout, value, &rem);
273 printf(">");
274 if (invalid)
275 printf("<invalid>%u", rem);
276 }
277
278 void
decode_filemode(int value)279 decode_filemode(int value)
280 {
281 bool invalid;
282 int rem;
283
284 if (value == 0) {
285 printf("0");
286 return;
287 }
288 printf("%#o<", value);
289 invalid = !sysdecode_filemode(stdout, value, &rem);
290 printf(">");
291 if (invalid)
292 printf("<invalid>%u", rem);
293 }
294
295 void
print_mask_arg32(bool (* decoder)(FILE *,uint32_t,uint32_t *),uint32_t value)296 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
297 {
298 bool invalid;
299 uint32_t rem;
300
301 printf("%#x<", value);
302 invalid = !decoder(stdout, value, &rem);
303 printf(">");
304 if (invalid)
305 printf("<invalid>%u", rem);
306 }
307
308 void
print_mask_argul(bool (* decoder)(FILE *,u_long,u_long *),u_long value)309 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
310 {
311 bool invalid;
312 u_long rem;
313
314 if (value == 0) {
315 printf("0");
316 return;
317 }
318 printf("%#lx<", value);
319 invalid = !decoder(stdout, value, &rem);
320 printf(">");
321 if (invalid)
322 printf("<invalid>%lu", rem);
323 }
324
325 int
main(int argc,char * argv[])326 main(int argc, char *argv[])
327 {
328 int ch, ktrlen, size;
329 void *m;
330 int trpoints = ALL_POINTS;
331 int drop_logged;
332 pid_t pid = 0;
333 u_int sv_flags;
334
335 setlocale(LC_CTYPE, "");
336
337 timestamp = TIMESTAMP_NONE;
338
339 while ((ch = getopt(argc,argv,"f:cdElm:np:AHRrSsTt:")) != -1)
340 switch (ch) {
341 case 'A':
342 abiflag = true;
343 break;
344 case 'f':
345 tracefile = optarg;
346 break;
347 case 'c':
348 cpuflag = true;
349 break;
350 case 'd':
351 decimal = true;
352 break;
353 case 'l':
354 tail = true;
355 break;
356 case 'm':
357 maxdata = atoi(optarg);
358 break;
359 case 'n':
360 fancy = false;
361 break;
362 case 'p':
363 pid = atoi(optarg);
364 break;
365 case 'r':
366 resolv = true;
367 break;
368 case 'S':
369 syscallno = true;
370 break;
371 case 's':
372 suppressdata = true;
373 break;
374 case 'E':
375 timestamp |= TIMESTAMP_ELAPSED;
376 break;
377 case 'H':
378 threads = true;
379 break;
380 case 'R':
381 timestamp |= TIMESTAMP_RELATIVE;
382 break;
383 case 'T':
384 timestamp |= TIMESTAMP_ABSOLUTE;
385 break;
386 case 't':
387 trpoints = getpoints(optarg);
388 if (trpoints < 0)
389 errx(1, "unknown trace point in %s", optarg);
390 break;
391 default:
392 usage();
393 }
394
395 if (argc > optind)
396 usage();
397
398 m = malloc(size = 1025);
399 if (m == NULL)
400 errx(1, "%s", strerror(ENOMEM));
401 if (strcmp(tracefile, "-") != 0)
402 if (!freopen(tracefile, "r", stdin))
403 err(1, "%s", tracefile);
404
405 caph_cache_catpages();
406 caph_cache_tzdata();
407
408 #ifdef WITH_CASPER
409 if (resolv) {
410 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
411 cappwd = NULL;
412 capgrp = NULL;
413 }
414 }
415 if (!resolv || (cappwd != NULL && capgrp != NULL)) {
416 if (caph_enter() < 0)
417 err(1, "unable to enter capability mode");
418 }
419 #else
420 if (!resolv) {
421 if (caph_enter() < 0)
422 err(1, "unable to enter capability mode");
423 }
424 #endif
425 if (caph_limit_stdio() == -1)
426 err(1, "unable to limit stdio");
427
428 TAILQ_INIT(&trace_procs);
429 drop_logged = 0;
430 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
431 if (ktr_header.ktr_type & KTR_VERSIONED) {
432 ktr_header.ktr_type &= ~KTR_VERSIONED;
433 version = ktr_header.ktr_version;
434 } else
435 version = KTR_VERSION0;
436 if (ktr_header.ktr_type & KTR_DROP) {
437 ktr_header.ktr_type &= ~KTR_DROP;
438 if (!drop_logged && threads) {
439 printf(
440 "%6d %6d %-8.*s Events dropped.\n",
441 ktr_header.ktr_pid,
442 ktr_header.ktr_tid > 0 ?
443 (lwpid_t)ktr_header.ktr_tid : 0,
444 MAXCOMLEN, ktr_header.ktr_comm);
445 drop_logged = 1;
446 } else if (!drop_logged) {
447 printf("%6d %-8.*s Events dropped.\n",
448 ktr_header.ktr_pid, MAXCOMLEN,
449 ktr_header.ktr_comm);
450 drop_logged = 1;
451 }
452 }
453 if ((ktrlen = ktr_header.ktr_len) < 0)
454 errx(1, "bogus length 0x%x", ktrlen);
455 if (ktrlen > size) {
456 m = realloc(m, ktrlen+1);
457 if (m == NULL)
458 errx(1, "%s", strerror(ENOMEM));
459 size = ktrlen;
460 }
461 if (version == KTR_VERSION0 &&
462 fseek(stdin, KTR_OFFSET_V0, SEEK_CUR) < 0)
463 errx(1, "%s", strerror(errno));
464 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
465 errx(1, "data too short");
466 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
467 continue;
468 if (pid && ktr_header.ktr_pid != pid &&
469 ktr_header.ktr_tid != pid)
470 continue;
471 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
472 continue;
473 sv_flags = findabi(&ktr_header);
474 dumpheader(&ktr_header, sv_flags);
475 drop_logged = 0;
476 switch (ktr_header.ktr_type) {
477 case KTR_SYSCALL:
478 ktrsyscall((struct ktr_syscall *)m, sv_flags);
479 break;
480 case KTR_SYSRET:
481 ktrsysret((struct ktr_sysret *)m, sv_flags);
482 break;
483 case KTR_NAMEI:
484 case KTR_SYSCTL:
485 ktrnamei(m, ktrlen);
486 break;
487 case KTR_GENIO:
488 ktrgenio((struct ktr_genio *)m, ktrlen);
489 break;
490 case KTR_PSIG:
491 ktrpsig((struct ktr_psig *)m);
492 break;
493 case KTR_CSW:
494 if (ktrlen == sizeof(struct ktr_csw_old))
495 ktrcsw_old((struct ktr_csw_old *)m);
496 else
497 ktrcsw((struct ktr_csw *)m);
498 break;
499 case KTR_USER:
500 ktruser(ktrlen, m);
501 break;
502 case KTR_STRUCT:
503 ktrstruct(m, ktrlen);
504 break;
505 case KTR_CAPFAIL:
506 ktrcapfail((struct ktr_cap_fail *)m);
507 break;
508 case KTR_FAULT:
509 ktrfault((struct ktr_fault *)m);
510 break;
511 case KTR_FAULTEND:
512 ktrfaultend((struct ktr_faultend *)m);
513 break;
514 case KTR_STRUCT_ARRAY:
515 ktrstructarray((struct ktr_struct_array *)m, ktrlen);
516 break;
517 default:
518 printf("\n");
519 break;
520 }
521 if (tail)
522 fflush(stdout);
523 }
524 return 0;
525 }
526
527 int
fread_tail(void * buf,int size,int num)528 fread_tail(void *buf, int size, int num)
529 {
530 int i;
531
532 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
533 sleep(1);
534 clearerr(stdin);
535 }
536 return (i);
537 }
538
539 int
fetchprocinfo(struct ktr_header * kth,u_int * flags)540 fetchprocinfo(struct ktr_header *kth, u_int *flags)
541 {
542 struct proc_info *pi;
543
544 switch (kth->ktr_type) {
545 case KTR_PROCCTOR:
546 TAILQ_FOREACH(pi, &trace_procs, info) {
547 if (pi->pid == kth->ktr_pid) {
548 TAILQ_REMOVE(&trace_procs, pi, info);
549 break;
550 }
551 }
552 pi = malloc(sizeof(struct proc_info));
553 if (pi == NULL)
554 errx(1, "%s", strerror(ENOMEM));
555 pi->sv_flags = *flags;
556 pi->pid = kth->ktr_pid;
557 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
558 return (1);
559
560 case KTR_PROCDTOR:
561 TAILQ_FOREACH(pi, &trace_procs, info) {
562 if (pi->pid == kth->ktr_pid) {
563 TAILQ_REMOVE(&trace_procs, pi, info);
564 free(pi);
565 break;
566 }
567 }
568 return (1);
569 }
570
571 return (0);
572 }
573
574 u_int
findabi(struct ktr_header * kth)575 findabi(struct ktr_header *kth)
576 {
577 struct proc_info *pi;
578
579 TAILQ_FOREACH(pi, &trace_procs, info) {
580 if (pi->pid == kth->ktr_pid) {
581 return (pi->sv_flags);
582 }
583 }
584 return (0);
585 }
586
587 void
dumptimeval(struct ktr_header_v0 * kth)588 dumptimeval(struct ktr_header_v0 *kth)
589 {
590 static struct timeval prevtime, prevtime_e;
591 struct timeval temp;
592 const char *sign;
593
594 if (timestamp & TIMESTAMP_ABSOLUTE) {
595 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
596 kth->ktr_time.tv_usec);
597 }
598 if (timestamp & TIMESTAMP_ELAPSED) {
599 if (prevtime_e.tv_sec == 0)
600 prevtime_e = kth->ktr_time;
601 timersub(&kth->ktr_time, &prevtime_e, &temp);
602 printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
603 temp.tv_usec);
604 }
605 if (timestamp & TIMESTAMP_RELATIVE) {
606 if (prevtime.tv_sec == 0)
607 prevtime = kth->ktr_time;
608 if (timercmp(&kth->ktr_time, &prevtime, <)) {
609 timersub(&prevtime, &kth->ktr_time, &temp);
610 sign = "-";
611 } else {
612 timersub(&kth->ktr_time, &prevtime, &temp);
613 sign = "";
614 }
615 prevtime = kth->ktr_time;
616 printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
617 temp.tv_usec);
618 }
619 }
620
621 void
dumptimespec(struct ktr_header * kth)622 dumptimespec(struct ktr_header *kth)
623 {
624 static struct timespec prevtime, prevtime_e;
625 struct timespec temp;
626 const char *sign;
627
628 if (timestamp & TIMESTAMP_ABSOLUTE) {
629 printf("%jd.%09ld ", (intmax_t)kth->ktr_time.tv_sec,
630 kth->ktr_time.tv_nsec);
631 }
632 if (timestamp & TIMESTAMP_ELAPSED) {
633 if (prevtime_e.tv_sec == 0)
634 prevtime_e = kth->ktr_time;
635 timespecsub(&kth->ktr_time, &prevtime_e, &temp);
636 printf("%jd.%09ld ", (intmax_t)temp.tv_sec,
637 temp.tv_nsec);
638 }
639 if (timestamp & TIMESTAMP_RELATIVE) {
640 if (prevtime.tv_sec == 0)
641 prevtime = kth->ktr_time;
642 if (timespeccmp(&kth->ktr_time, &prevtime, <)) {
643 timespecsub(&prevtime, &kth->ktr_time, &temp);
644 sign = "-";
645 } else {
646 timespecsub(&kth->ktr_time, &prevtime, &temp);
647 sign = "";
648 }
649 prevtime = kth->ktr_time;
650 printf("%s%jd.%09ld ", sign, (intmax_t)temp.tv_sec,
651 temp.tv_nsec);
652 }
653 }
654
655 void
dumpheader(struct ktr_header * kth,u_int sv_flags)656 dumpheader(struct ktr_header *kth, u_int sv_flags)
657 {
658 static char unknown[64];
659 const char *abi;
660 const char *arch;
661 const char *type;
662
663 switch (kth->ktr_type) {
664 case KTR_SYSCALL:
665 type = "CALL";
666 break;
667 case KTR_SYSRET:
668 type = "RET ";
669 break;
670 case KTR_NAMEI:
671 type = "NAMI";
672 break;
673 case KTR_GENIO:
674 type = "GIO ";
675 break;
676 case KTR_PSIG:
677 type = "PSIG";
678 break;
679 case KTR_CSW:
680 type = "CSW ";
681 break;
682 case KTR_USER:
683 type = "USER";
684 break;
685 case KTR_STRUCT:
686 case KTR_STRUCT_ARRAY:
687 type = "STRU";
688 break;
689 case KTR_SYSCTL:
690 type = "SCTL";
691 break;
692 case KTR_CAPFAIL:
693 type = "CAP ";
694 break;
695 case KTR_FAULT:
696 type = "PFLT";
697 break;
698 case KTR_FAULTEND:
699 type = "PRET";
700 break;
701 default:
702 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
703 type = unknown;
704 }
705
706 /*
707 * The ktr_tid field was previously the ktr_buffer field, which held
708 * the kernel pointer value for the buffer associated with data
709 * following the record header. It now holds a threadid, but only
710 * for trace files after the change. Older trace files still contain
711 * kernel pointers. Detect this and suppress the results by printing
712 * negative tid's as 0.
713 */
714 if (threads)
715 printf("%6d %6d %-8.*s ", kth->ktr_pid,
716 kth->ktr_tid > 0 ? (lwpid_t)kth->ktr_tid : 0,
717 MAXCOMLEN, kth->ktr_comm);
718 else
719 printf("%6d %-8.*s ", kth->ktr_pid, MAXCOMLEN, kth->ktr_comm);
720 if (timestamp) {
721 if (version == KTR_VERSION0)
722 dumptimeval((struct ktr_header_v0 *)kth);
723 else
724 dumptimespec(kth);
725 }
726 if (cpuflag && version > KTR_VERSION0)
727 printf("%3d ", kth->ktr_cpu);
728 printf("%s ", type);
729 if (abiflag != 0) {
730 switch (sv_flags & SV_ABI_MASK) {
731 case SV_ABI_LINUX:
732 abi = "L";
733 break;
734 case SV_ABI_FREEBSD:
735 abi = "F";
736 break;
737 default:
738 abi = "U";
739 break;
740 }
741
742 if ((sv_flags & SV_LP64) != 0)
743 arch = "64";
744 else if ((sv_flags & SV_ILP32) != 0)
745 arch = "32";
746 else
747 arch = "00";
748
749 printf("%s%s ", abi, arch);
750 }
751 }
752
753 #include <sys/syscall.h>
754
755 static void
ioctlname(unsigned long val)756 ioctlname(unsigned long val)
757 {
758 const char *str;
759
760 str = sysdecode_ioctlname(val);
761 if (str != NULL)
762 printf("%s", str);
763 else if (decimal)
764 printf("%lu", val);
765 else
766 printf("%#lx", val);
767 }
768
769 static enum sysdecode_abi
syscallabi(u_int sv_flags)770 syscallabi(u_int sv_flags)
771 {
772
773 if (sv_flags == 0)
774 return (SYSDECODE_ABI_FREEBSD);
775 switch (sv_flags & SV_ABI_MASK) {
776 case SV_ABI_FREEBSD:
777 return (SYSDECODE_ABI_FREEBSD);
778 case SV_ABI_LINUX:
779 #ifdef __LP64__
780 if (sv_flags & SV_ILP32)
781 return (SYSDECODE_ABI_LINUX32);
782 #endif
783 return (SYSDECODE_ABI_LINUX);
784 default:
785 return (SYSDECODE_ABI_UNKNOWN);
786 }
787 }
788
789 static void
syscallname(u_int code,u_int sv_flags)790 syscallname(u_int code, u_int sv_flags)
791 {
792 const char *name;
793
794 name = sysdecode_syscallname(syscallabi(sv_flags), code);
795 if (name == NULL)
796 printf("[%d]", code);
797 else {
798 printf("%s", name);
799 if (syscallno)
800 printf("[%d]", code);
801 }
802 }
803
804 static void
print_signal(int signo)805 print_signal(int signo)
806 {
807 const char *signame;
808
809 signame = sysdecode_signal(signo);
810 if (signame != NULL)
811 printf("%s", signame);
812 else
813 printf("SIG %d", signo);
814 }
815
816 void
ktrsyscall(struct ktr_syscall * ktr,u_int sv_flags)817 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
818 {
819 int narg = ktr->ktr_narg;
820 register_t *ip;
821
822 syscallname(ktr->ktr_code, sv_flags);
823 ip = &ktr->ktr_args[0];
824 if (narg) {
825 char c = '(';
826 if (fancy) {
827 switch (sv_flags & SV_ABI_MASK) {
828 case SV_ABI_FREEBSD:
829 ktrsyscall_freebsd(ktr, &ip, &narg, &c,
830 sv_flags);
831 break;
832 #ifdef SYSDECODE_HAVE_LINUX
833 case SV_ABI_LINUX:
834 #ifdef __amd64__
835 if (sv_flags & SV_ILP32)
836 ktrsyscall_linux32(ktr, &ip,
837 &narg, &c);
838 else
839 #endif
840 ktrsyscall_linux(ktr, &ip, &narg, &c);
841 break;
842 #endif /* SYSDECODE_HAVE_LINUX */
843 }
844 }
845 while (narg > 0)
846 print_number(ip, narg, c);
847 putchar(')');
848 }
849 putchar('\n');
850 }
851
852 void
ktrsyscall_freebsd(struct ktr_syscall * ktr,register_t ** resip,int * resnarg,char * resc,u_int sv_flags)853 ktrsyscall_freebsd(struct ktr_syscall *ktr, register_t **resip,
854 int *resnarg, char *resc, u_int sv_flags)
855 {
856 int narg = ktr->ktr_narg;
857 register_t *ip, *first;
858 intmax_t arg;
859 int quad_align, quad_slots;
860
861 ip = first = &ktr->ktr_args[0];
862 char c = *resc;
863
864 quad_align = 0;
865 if (sv_flags & SV_ILP32) {
866 #ifdef __powerpc__
867 quad_align = 1;
868 #endif
869 quad_slots = 2;
870 } else
871 quad_slots = 1;
872 switch (ktr->ktr_code) {
873 case SYS_bindat:
874 case SYS_chflagsat:
875 case SYS_connectat:
876 case SYS_faccessat:
877 case SYS_fchmodat:
878 case SYS_fchownat:
879 case SYS_fstatat:
880 case SYS_futimesat:
881 case SYS_linkat:
882 case SYS_mkdirat:
883 case SYS_mkfifoat:
884 case SYS_mknodat:
885 case SYS_openat:
886 case SYS_readlinkat:
887 case SYS_renameat:
888 case SYS_unlinkat:
889 case SYS_utimensat:
890 putchar('(');
891 print_integer_arg_valid(sysdecode_atfd, *ip);
892 c = ',';
893 ip++;
894 narg--;
895 break;
896 }
897 switch (ktr->ktr_code) {
898 case SYS_ioctl: {
899 print_number(ip, narg, c);
900 putchar(c);
901 ioctlname(*ip);
902 c = ',';
903 ip++;
904 narg--;
905 break;
906 }
907 case SYS_ptrace:
908 putchar('(');
909 print_integer_arg(sysdecode_ptrace_request, *ip);
910 c = ',';
911 ip++;
912 narg--;
913 break;
914 case SYS_access:
915 case SYS_eaccess:
916 case SYS_faccessat:
917 print_number(ip, narg, c);
918 putchar(',');
919 print_mask_arg(sysdecode_access_mode, *ip);
920 ip++;
921 narg--;
922 break;
923 case SYS_close_range:
924 print_number(ip, narg, c);
925 print_number(ip, narg, c);
926 putchar(',');
927 print_mask_arg0(sysdecode_close_range_flags,
928 *ip);
929 ip += 3;
930 narg -= 3;
931 break;
932 case SYS_open:
933 case SYS_openat:
934 print_number(ip, narg, c);
935 putchar(',');
936 print_mask_arg(sysdecode_open_flags, ip[0]);
937 if ((ip[0] & O_CREAT) == O_CREAT) {
938 putchar(',');
939 decode_filemode(ip[1]);
940 }
941 ip += 2;
942 narg -= 2;
943 break;
944 case SYS_wait4:
945 print_number(ip, narg, c);
946 print_number(ip, narg, c);
947 putchar(',');
948 print_mask_arg0(sysdecode_wait4_options, *ip);
949 ip++;
950 narg--;
951 break;
952 case SYS_wait6:
953 putchar('(');
954 print_integer_arg(sysdecode_idtype, *ip);
955 c = ',';
956 ip++;
957 narg--;
958 print_number64(first, ip, narg, c);
959 print_number(ip, narg, c);
960 putchar(',');
961 print_mask_arg(sysdecode_wait6_options, *ip);
962 ip++;
963 narg--;
964 break;
965 case SYS_chmod:
966 case SYS_fchmod:
967 case SYS_lchmod:
968 case SYS_fchmodat:
969 print_number(ip, narg, c);
970 putchar(',');
971 decode_filemode(*ip);
972 ip++;
973 narg--;
974 break;
975 case SYS_mknodat:
976 print_number(ip, narg, c);
977 putchar(',');
978 decode_filemode(*ip);
979 ip++;
980 narg--;
981 break;
982 case SYS_getfsstat:
983 print_number(ip, narg, c);
984 print_number(ip, narg, c);
985 putchar(',');
986 print_integer_arg(sysdecode_getfsstat_mode, *ip);
987 ip++;
988 narg--;
989 break;
990 case SYS_mount:
991 print_number(ip, narg, c);
992 print_number(ip, narg, c);
993 putchar(',');
994 print_mask_arg0(sysdecode_mount_flags, *ip);
995 ip++;
996 narg--;
997 break;
998 case SYS_unmount:
999 print_number(ip, narg, c);
1000 putchar(',');
1001 print_mask_arg0(sysdecode_mount_flags, *ip);
1002 ip++;
1003 narg--;
1004 break;
1005 case SYS_recvmsg:
1006 case SYS_sendmsg:
1007 print_number(ip, narg, c);
1008 print_number(ip, narg, c);
1009 putchar(',');
1010 print_mask_arg0(sysdecode_msg_flags, *ip);
1011 ip++;
1012 narg--;
1013 break;
1014 case SYS_recvfrom:
1015 case SYS_sendto:
1016 print_number(ip, narg, c);
1017 print_number(ip, narg, c);
1018 print_number(ip, narg, c);
1019 putchar(',');
1020 print_mask_arg0(sysdecode_msg_flags, *ip);
1021 ip++;
1022 narg--;
1023 break;
1024 case SYS_chflags:
1025 case SYS_chflagsat:
1026 case SYS_fchflags:
1027 case SYS_lchflags:
1028 print_number(ip, narg, c);
1029 putchar(',');
1030 decode_fileflags(*ip);
1031 ip++;
1032 narg--;
1033 break;
1034 case SYS_kill:
1035 print_number(ip, narg, c);
1036 putchar(',');
1037 print_signal(*ip);
1038 ip++;
1039 narg--;
1040 break;
1041 case SYS_reboot:
1042 putchar('(');
1043 print_mask_arg(sysdecode_reboot_howto, *ip);
1044 ip++;
1045 narg--;
1046 break;
1047 case SYS_umask:
1048 putchar('(');
1049 decode_filemode(*ip);
1050 ip++;
1051 narg--;
1052 break;
1053 case SYS_msync:
1054 print_number(ip, narg, c);
1055 print_number(ip, narg, c);
1056 putchar(',');
1057 print_mask_arg(sysdecode_msync_flags, *ip);
1058 ip++;
1059 narg--;
1060 break;
1061 #ifdef SYS_freebsd6_mmap
1062 case SYS_freebsd6_mmap:
1063 print_number(ip, narg, c);
1064 print_number(ip, narg, c);
1065 putchar(',');
1066 print_mask_arg(sysdecode_mmap_prot, *ip);
1067 putchar(',');
1068 ip++;
1069 narg--;
1070 print_mask_arg(sysdecode_mmap_flags, *ip);
1071 ip++;
1072 narg--;
1073 break;
1074 #endif
1075 case SYS_mmap:
1076 print_number(ip, narg, c);
1077 print_number(ip, narg, c);
1078 putchar(',');
1079 print_mask_arg(sysdecode_mmap_prot, *ip);
1080 putchar(',');
1081 ip++;
1082 narg--;
1083 print_mask_arg(sysdecode_mmap_flags, *ip);
1084 ip++;
1085 narg--;
1086 break;
1087 case SYS_mprotect:
1088 print_number(ip, narg, c);
1089 print_number(ip, narg, c);
1090 putchar(',');
1091 print_mask_arg(sysdecode_mmap_prot, *ip);
1092 ip++;
1093 narg--;
1094 break;
1095 case SYS_madvise:
1096 print_number(ip, narg, c);
1097 print_number(ip, narg, c);
1098 putchar(',');
1099 print_integer_arg(sysdecode_madvice, *ip);
1100 ip++;
1101 narg--;
1102 break;
1103 case SYS_pathconf:
1104 case SYS_lpathconf:
1105 case SYS_fpathconf:
1106 print_number(ip, narg, c);
1107 putchar(',');
1108 print_integer_arg(sysdecode_pathconf_name, *ip);
1109 ip++;
1110 narg--;
1111 break;
1112 case SYS_getpriority:
1113 case SYS_setpriority:
1114 putchar('(');
1115 print_integer_arg(sysdecode_prio_which, *ip);
1116 c = ',';
1117 ip++;
1118 narg--;
1119 break;
1120 case SYS_fcntl:
1121 print_number(ip, narg, c);
1122 putchar(',');
1123 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1124 if (sysdecode_fcntl_arg_p(ip[0])) {
1125 putchar(',');
1126 if (ip[0] == F_SETFL)
1127 print_mask_arg(
1128 sysdecode_fcntl_fileflags,
1129 ip[1]);
1130 else
1131 sysdecode_fcntl_arg(stdout,
1132 ip[0], ip[1],
1133 decimal ? 10 : 16);
1134 }
1135 ip += 2;
1136 narg -= 2;
1137 break;
1138 case SYS_socket: {
1139 int sockdomain;
1140 putchar('(');
1141 sockdomain = *ip;
1142 print_integer_arg(sysdecode_socketdomain,
1143 sockdomain);
1144 ip++;
1145 narg--;
1146 putchar(',');
1147 print_mask_arg(sysdecode_socket_type, *ip);
1148 ip++;
1149 narg--;
1150 if (sockdomain == PF_INET ||
1151 sockdomain == PF_INET6) {
1152 putchar(',');
1153 print_integer_arg(sysdecode_ipproto,
1154 *ip);
1155 ip++;
1156 narg--;
1157 }
1158 c = ',';
1159 break;
1160 }
1161 case SYS_setsockopt:
1162 case SYS_getsockopt: {
1163 const char *str;
1164
1165 print_number(ip, narg, c);
1166 putchar(',');
1167 print_integer_arg_valid(sysdecode_sockopt_level,
1168 *ip);
1169 str = sysdecode_sockopt_name(ip[0], ip[1]);
1170 if (str != NULL) {
1171 printf(",%s", str);
1172 ip++;
1173 narg--;
1174 }
1175 ip++;
1176 narg--;
1177 break;
1178 }
1179 #ifdef SYS_freebsd6_lseek
1180 case SYS_freebsd6_lseek:
1181 print_number(ip, narg, c);
1182 /* Hidden 'pad' argument, not in lseek(2) */
1183 print_number(ip, narg, c);
1184 print_number64(first, ip, narg, c);
1185 putchar(',');
1186 print_integer_arg(sysdecode_whence, *ip);
1187 ip++;
1188 narg--;
1189 break;
1190 #endif
1191 case SYS_lseek:
1192 print_number(ip, narg, c);
1193 print_number64(first, ip, narg, c);
1194 putchar(',');
1195 print_integer_arg(sysdecode_whence, *ip);
1196 ip++;
1197 narg--;
1198 break;
1199 case SYS_flock:
1200 print_number(ip, narg, c);
1201 putchar(',');
1202 print_mask_arg(sysdecode_flock_operation, *ip);
1203 ip++;
1204 narg--;
1205 break;
1206 case SYS_mkfifo:
1207 case SYS_mkfifoat:
1208 case SYS_mkdir:
1209 case SYS_mkdirat:
1210 print_number(ip, narg, c);
1211 putchar(',');
1212 decode_filemode(*ip);
1213 ip++;
1214 narg--;
1215 break;
1216 case SYS_shutdown:
1217 print_number(ip, narg, c);
1218 putchar(',');
1219 print_integer_arg(sysdecode_shutdown_how, *ip);
1220 ip++;
1221 narg--;
1222 break;
1223 case SYS_socketpair:
1224 putchar('(');
1225 print_integer_arg(sysdecode_socketdomain, *ip);
1226 ip++;
1227 narg--;
1228 putchar(',');
1229 print_mask_arg(sysdecode_socket_type, *ip);
1230 ip++;
1231 narg--;
1232 c = ',';
1233 break;
1234 case SYS_getrlimit:
1235 case SYS_setrlimit:
1236 putchar('(');
1237 print_integer_arg(sysdecode_rlimit, *ip);
1238 ip++;
1239 narg--;
1240 c = ',';
1241 break;
1242 case SYS_getrusage:
1243 putchar('(');
1244 print_integer_arg(sysdecode_getrusage_who, *ip);
1245 ip++;
1246 narg--;
1247 c = ',';
1248 break;
1249 case SYS_quotactl:
1250 print_number(ip, narg, c);
1251 putchar(',');
1252 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1253 if (decimal)
1254 printf("<invalid=%d>", (int)*ip);
1255 else
1256 printf("<invalid=%#x>",
1257 (int)*ip);
1258 }
1259 ip++;
1260 narg--;
1261 c = ',';
1262 break;
1263 case SYS_nfssvc:
1264 putchar('(');
1265 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1266 ip++;
1267 narg--;
1268 c = ',';
1269 break;
1270 case SYS_rtprio:
1271 case SYS_rtprio_thread:
1272 putchar('(');
1273 print_integer_arg(sysdecode_rtprio_function,
1274 *ip);
1275 ip++;
1276 narg--;
1277 c = ',';
1278 break;
1279 case SYS___semctl:
1280 print_number(ip, narg, c);
1281 print_number(ip, narg, c);
1282 putchar(',');
1283 print_integer_arg(sysdecode_semctl_cmd, *ip);
1284 ip++;
1285 narg--;
1286 break;
1287 case SYS_semget:
1288 print_number(ip, narg, c);
1289 print_number(ip, narg, c);
1290 putchar(',');
1291 print_mask_arg(sysdecode_semget_flags, *ip);
1292 ip++;
1293 narg--;
1294 break;
1295 case SYS_msgctl:
1296 print_number(ip, narg, c);
1297 putchar(',');
1298 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1299 ip++;
1300 narg--;
1301 break;
1302 case SYS_shmat:
1303 print_number(ip, narg, c);
1304 print_number(ip, narg, c);
1305 putchar(',');
1306 print_mask_arg(sysdecode_shmat_flags, *ip);
1307 ip++;
1308 narg--;
1309 break;
1310 case SYS_shmctl:
1311 print_number(ip, narg, c);
1312 putchar(',');
1313 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1314 ip++;
1315 narg--;
1316 break;
1317 #ifdef SYS_freebsd12_shm_open
1318 case SYS_freebsd12_shm_open:
1319 if (ip[0] == (uintptr_t)SHM_ANON) {
1320 printf("(SHM_ANON");
1321 ip++;
1322 } else {
1323 print_number(ip, narg, c);
1324 }
1325 putchar(',');
1326 print_mask_arg(sysdecode_open_flags, ip[0]);
1327 putchar(',');
1328 decode_filemode(ip[1]);
1329 ip += 2;
1330 narg -= 2;
1331 break;
1332 #endif
1333 case SYS_shm_open2:
1334 if (ip[0] == (uintptr_t)SHM_ANON) {
1335 printf("(SHM_ANON");
1336 ip++;
1337 } else {
1338 print_number(ip, narg, c);
1339 }
1340 putchar(',');
1341 print_mask_arg(sysdecode_open_flags, ip[0]);
1342 putchar(',');
1343 decode_filemode(ip[1]);
1344 putchar(',');
1345 print_mask_arg(sysdecode_shmflags, ip[2]);
1346 ip += 3;
1347 narg -= 3;
1348 break;
1349 case SYS_minherit:
1350 print_number(ip, narg, c);
1351 print_number(ip, narg, c);
1352 putchar(',');
1353 print_integer_arg(sysdecode_minherit_inherit,
1354 *ip);
1355 ip++;
1356 narg--;
1357 break;
1358 case SYS_rfork:
1359 putchar('(');
1360 print_mask_arg(sysdecode_rfork_flags, *ip);
1361 ip++;
1362 narg--;
1363 c = ',';
1364 break;
1365 case SYS_lio_listio:
1366 putchar('(');
1367 print_integer_arg(sysdecode_lio_listio_mode,
1368 *ip);
1369 ip++;
1370 narg--;
1371 c = ',';
1372 break;
1373 case SYS_mlockall:
1374 putchar('(');
1375 print_mask_arg(sysdecode_mlockall_flags, *ip);
1376 ip++;
1377 narg--;
1378 break;
1379 case SYS_sched_setscheduler:
1380 print_number(ip, narg, c);
1381 putchar(',');
1382 print_integer_arg(sysdecode_scheduler_policy,
1383 *ip);
1384 ip++;
1385 narg--;
1386 break;
1387 case SYS_sched_get_priority_max:
1388 case SYS_sched_get_priority_min:
1389 putchar('(');
1390 print_integer_arg(sysdecode_scheduler_policy,
1391 *ip);
1392 ip++;
1393 narg--;
1394 break;
1395 case SYS_sendfile:
1396 print_number(ip, narg, c);
1397 print_number(ip, narg, c);
1398 print_number(ip, narg, c);
1399 print_number(ip, narg, c);
1400 print_number(ip, narg, c);
1401 print_number(ip, narg, c);
1402 putchar(',');
1403 print_mask_arg(sysdecode_sendfile_flags, *ip);
1404 ip++;
1405 narg--;
1406 break;
1407 case SYS_kldsym:
1408 print_number(ip, narg, c);
1409 putchar(',');
1410 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1411 ip++;
1412 narg--;
1413 break;
1414 case SYS_sigprocmask:
1415 putchar('(');
1416 print_integer_arg(sysdecode_sigprocmask_how,
1417 *ip);
1418 ip++;
1419 narg--;
1420 c = ',';
1421 break;
1422 case SYS___acl_get_file:
1423 case SYS___acl_set_file:
1424 case SYS___acl_get_fd:
1425 case SYS___acl_set_fd:
1426 case SYS___acl_delete_file:
1427 case SYS___acl_delete_fd:
1428 case SYS___acl_aclcheck_file:
1429 case SYS___acl_aclcheck_fd:
1430 case SYS___acl_get_link:
1431 case SYS___acl_set_link:
1432 case SYS___acl_delete_link:
1433 case SYS___acl_aclcheck_link:
1434 print_number(ip, narg, c);
1435 putchar(',');
1436 print_integer_arg(sysdecode_acltype, *ip);
1437 ip++;
1438 narg--;
1439 break;
1440 case SYS_sigaction:
1441 putchar('(');
1442 print_signal(*ip);
1443 ip++;
1444 narg--;
1445 c = ',';
1446 break;
1447 case SYS_extattrctl:
1448 print_number(ip, narg, c);
1449 putchar(',');
1450 print_integer_arg(sysdecode_extattrnamespace,
1451 *ip);
1452 ip++;
1453 narg--;
1454 break;
1455 case SYS_nmount:
1456 print_number(ip, narg, c);
1457 print_number(ip, narg, c);
1458 putchar(',');
1459 print_mask_arg0(sysdecode_mount_flags, *ip);
1460 ip++;
1461 narg--;
1462 break;
1463 case SYS_thr_create:
1464 print_number(ip, narg, c);
1465 print_number(ip, narg, c);
1466 putchar(',');
1467 print_mask_arg(sysdecode_thr_create_flags, *ip);
1468 ip++;
1469 narg--;
1470 break;
1471 case SYS_thr_kill:
1472 print_number(ip, narg, c);
1473 putchar(',');
1474 print_signal(*ip);
1475 ip++;
1476 narg--;
1477 break;
1478 case SYS_kldunloadf:
1479 print_number(ip, narg, c);
1480 putchar(',');
1481 print_integer_arg(sysdecode_kldunload_flags,
1482 *ip);
1483 ip++;
1484 narg--;
1485 break;
1486 case SYS_linkat:
1487 case SYS_renameat:
1488 case SYS_symlinkat:
1489 print_number(ip, narg, c);
1490 putchar(',');
1491 print_integer_arg_valid(sysdecode_atfd, *ip);
1492 ip++;
1493 narg--;
1494 print_number(ip, narg, c);
1495 break;
1496 case SYS_cap_fcntls_limit:
1497 print_number(ip, narg, c);
1498 putchar(',');
1499 arg = *ip;
1500 ip++;
1501 narg--;
1502 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1503 break;
1504 case SYS_posix_fadvise:
1505 print_number(ip, narg, c);
1506 print_number(ip, narg, c);
1507 print_number(ip, narg, c);
1508 (void)putchar(',');
1509 print_integer_arg(sysdecode_fadvice, *ip);
1510 ip++;
1511 narg--;
1512 break;
1513 case SYS_procctl:
1514 putchar('(');
1515 print_integer_arg(sysdecode_idtype, *ip);
1516 c = ',';
1517 ip++;
1518 narg--;
1519 print_number64(first, ip, narg, c);
1520 putchar(',');
1521 print_integer_arg(sysdecode_procctl_cmd, *ip);
1522 ip++;
1523 narg--;
1524 break;
1525 case SYS__umtx_op: {
1526 int op;
1527
1528 print_number(ip, narg, c);
1529 putchar(',');
1530 if (print_mask_arg_part(sysdecode_umtx_op_flags,
1531 *ip, &op))
1532 putchar('|');
1533 print_integer_arg(sysdecode_umtx_op, op);
1534 putchar('>');
1535 switch (*ip) {
1536 case UMTX_OP_CV_WAIT:
1537 ip++;
1538 narg--;
1539 putchar(',');
1540 print_mask_argul(
1541 sysdecode_umtx_cvwait_flags, *ip);
1542 break;
1543 case UMTX_OP_RW_RDLOCK:
1544 ip++;
1545 narg--;
1546 putchar(',');
1547 print_mask_argul(
1548 sysdecode_umtx_rwlock_flags, *ip);
1549 break;
1550 }
1551 ip++;
1552 narg--;
1553 break;
1554 }
1555 case SYS_ftruncate:
1556 case SYS_truncate:
1557 print_number(ip, narg, c);
1558 print_number64(first, ip, narg, c);
1559 break;
1560 case SYS_fchownat:
1561 print_number(ip, narg, c);
1562 print_number(ip, narg, c);
1563 print_number(ip, narg, c);
1564 break;
1565 case SYS_fstatat:
1566 case SYS_utimensat:
1567 print_number(ip, narg, c);
1568 print_number(ip, narg, c);
1569 break;
1570 case SYS_unlinkat:
1571 print_number(ip, narg, c);
1572 break;
1573 case SYS_sysarch:
1574 putchar('(');
1575 print_integer_arg(sysdecode_sysarch_number, *ip);
1576 ip++;
1577 narg--;
1578 c = ',';
1579 break;
1580 case SYS_getitimer:
1581 case SYS_setitimer:
1582 putchar('(');
1583 print_integer_arg(sysdecode_itimer, *ip);
1584 ip++;
1585 narg--;
1586 c = ',';
1587 break;
1588 }
1589 switch (ktr->ktr_code) {
1590 case SYS_chflagsat:
1591 case SYS_fchownat:
1592 case SYS_faccessat:
1593 case SYS_fchmodat:
1594 case SYS_fstatat:
1595 case SYS_linkat:
1596 case SYS_unlinkat:
1597 case SYS_utimensat:
1598 putchar(',');
1599 print_mask_arg0(sysdecode_atflags, *ip);
1600 ip++;
1601 narg--;
1602 break;
1603 }
1604 *resc = c;
1605 *resip = ip;
1606 *resnarg = narg;
1607 }
1608
1609 void
ktrsysret(struct ktr_sysret * ktr,u_int sv_flags)1610 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1611 {
1612 register_t ret = ktr->ktr_retval;
1613 int error = ktr->ktr_error;
1614
1615 syscallname(ktr->ktr_code, sv_flags);
1616 printf(" ");
1617
1618 if (error == 0) {
1619 if (fancy) {
1620 printf("%ld", (long)ret);
1621 if (ret < 0 || ret > 9)
1622 printf("/%#lx", (unsigned long)ret);
1623 } else {
1624 if (decimal)
1625 printf("%ld", (long)ret);
1626 else
1627 printf("%#lx", (unsigned long)ret);
1628 }
1629 } else if (error == ERESTART)
1630 printf("RESTART");
1631 else if (error == EJUSTRETURN)
1632 printf("JUSTRETURN");
1633 else {
1634 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1635 syscallabi(sv_flags), error));
1636 if (fancy)
1637 printf(" %s", strerror(ktr->ktr_error));
1638 }
1639 putchar('\n');
1640 }
1641
1642 void
ktrnamei(char * cp,int len)1643 ktrnamei(char *cp, int len)
1644 {
1645 printf("\"%.*s\"\n", len, cp);
1646 }
1647
1648 void
hexdump(char * p,int len,int screenwidth)1649 hexdump(char *p, int len, int screenwidth)
1650 {
1651 int n, i;
1652 int width;
1653
1654 width = 0;
1655 do {
1656 width += 2;
1657 i = 13; /* base offset */
1658 i += (width / 2) + 1; /* spaces every second byte */
1659 i += (width * 2); /* width of bytes */
1660 i += 3; /* " |" */
1661 i += width; /* each byte */
1662 i += 1; /* "|" */
1663 } while (i < screenwidth);
1664 width -= 2;
1665
1666 for (n = 0; n < len; n += width) {
1667 for (i = n; i < n + width; i++) {
1668 if ((i % width) == 0) { /* beginning of line */
1669 printf(" 0x%04x", i);
1670 }
1671 if ((i % 2) == 0) {
1672 printf(" ");
1673 }
1674 if (i < len)
1675 printf("%02x", p[i] & 0xff);
1676 else
1677 printf(" ");
1678 }
1679 printf(" |");
1680 for (i = n; i < n + width; i++) {
1681 if (i >= len)
1682 break;
1683 if (p[i] >= ' ' && p[i] <= '~')
1684 printf("%c", p[i]);
1685 else
1686 printf(".");
1687 }
1688 printf("|\n");
1689 }
1690 if ((i % width) != 0)
1691 printf("\n");
1692 }
1693
1694 void
visdump(char * dp,int datalen,int screenwidth)1695 visdump(char *dp, int datalen, int screenwidth)
1696 {
1697 int col = 0;
1698 char *cp;
1699 int width;
1700 char visbuf[5];
1701
1702 printf(" \"");
1703 col = 8;
1704 for (;datalen > 0; datalen--, dp++) {
1705 vis(visbuf, *dp, VIS_CSTYLE | VIS_NOLOCALE, *(dp+1));
1706 cp = visbuf;
1707 /*
1708 * Keep track of printables and
1709 * space chars (like fold(1)).
1710 */
1711 if (col == 0) {
1712 putchar('\t');
1713 col = 8;
1714 }
1715 switch(*cp) {
1716 case '\n':
1717 col = 0;
1718 putchar('\n');
1719 continue;
1720 case '\t':
1721 width = 8 - (col&07);
1722 break;
1723 default:
1724 width = strlen(cp);
1725 }
1726 if (col + width > (screenwidth-2)) {
1727 printf("\\\n\t");
1728 col = 8;
1729 }
1730 col += width;
1731 do {
1732 putchar(*cp++);
1733 } while (*cp);
1734 }
1735 if (col == 0)
1736 printf(" ");
1737 printf("\"\n");
1738 }
1739
1740 void
ktrgenio(struct ktr_genio * ktr,int len)1741 ktrgenio(struct ktr_genio *ktr, int len)
1742 {
1743 int datalen = len - sizeof (struct ktr_genio);
1744 char *dp = (char *)ktr + sizeof (struct ktr_genio);
1745 static int screenwidth = 0;
1746 int i, binary;
1747
1748 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1749 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1750 datalen == 1 ? "" : "s");
1751 if (suppressdata)
1752 return;
1753 if (screenwidth == 0) {
1754 struct winsize ws;
1755
1756 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1757 ws.ws_col > 8)
1758 screenwidth = ws.ws_col;
1759 else
1760 screenwidth = 80;
1761 }
1762 if (maxdata && datalen > maxdata)
1763 datalen = maxdata;
1764
1765 for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
1766 if (dp[i] >= 32 && dp[i] < 127)
1767 continue;
1768 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1769 continue;
1770 binary = 1;
1771 }
1772 if (binary)
1773 hexdump(dp, datalen, screenwidth);
1774 else
1775 visdump(dp, datalen, screenwidth);
1776 }
1777
1778 void
ktrpsig(struct ktr_psig * psig)1779 ktrpsig(struct ktr_psig *psig)
1780 {
1781 const char *str;
1782
1783 print_signal(psig->signo);
1784 if (psig->action == SIG_DFL) {
1785 printf(" SIG_DFL");
1786 } else {
1787 printf(" caught handler=0x%lx mask=0x%x",
1788 (u_long)psig->action, psig->mask.__bits[0]);
1789 }
1790 printf(" code=");
1791 str = sysdecode_sigcode(psig->signo, psig->code);
1792 if (str != NULL)
1793 printf("%s", str);
1794 else
1795 printf("<invalid=%#x>", psig->code);
1796 putchar('\n');
1797 }
1798
1799 void
ktrcsw_old(struct ktr_csw_old * cs)1800 ktrcsw_old(struct ktr_csw_old *cs)
1801 {
1802 printf("%s %s\n", cs->out ? "stop" : "resume",
1803 cs->user ? "user" : "kernel");
1804 }
1805
1806 void
ktrcsw(struct ktr_csw * cs)1807 ktrcsw(struct ktr_csw *cs)
1808 {
1809 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1810 cs->user ? "user" : "kernel", cs->wmesg);
1811 }
1812
1813 void
ktruser(int len,void * p)1814 ktruser(int len, void *p)
1815 {
1816 unsigned char *cp;
1817
1818 if (sysdecode_utrace(stdout, p, len)) {
1819 printf("\n");
1820 return;
1821 }
1822
1823 printf("%d ", len);
1824 cp = p;
1825 while (len--)
1826 if (decimal)
1827 printf(" %d", *cp++);
1828 else
1829 printf(" %02x", *cp++);
1830 printf("\n");
1831 }
1832
1833 void
ktrcaprights(cap_rights_t * rightsp)1834 ktrcaprights(cap_rights_t *rightsp)
1835 {
1836
1837 printf("cap_rights_t ");
1838 sysdecode_cap_rights(stdout, rightsp);
1839 printf("\n");
1840 }
1841
1842 static void
ktrtimeval(struct timeval * tv)1843 ktrtimeval(struct timeval *tv)
1844 {
1845
1846 printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1847 }
1848
1849 void
ktritimerval(struct itimerval * it)1850 ktritimerval(struct itimerval *it)
1851 {
1852
1853 printf("itimerval { .interval = ");
1854 ktrtimeval(&it->it_interval);
1855 printf(", .value = ");
1856 ktrtimeval(&it->it_value);
1857 printf(" }\n");
1858 }
1859
1860 void
ktrsockaddr(struct sockaddr * sa)1861 ktrsockaddr(struct sockaddr *sa)
1862 {
1863 /*
1864 TODO: Support additional address families
1865 #include <netsmb/netbios.h>
1866 struct sockaddr_nb *nb;
1867 */
1868 const char *str;
1869 char addr[64];
1870
1871 /*
1872 * note: ktrstruct() has already verified that sa points to a
1873 * buffer at least sizeof(struct sockaddr) bytes long and exactly
1874 * sa->sa_len bytes long.
1875 */
1876 printf("struct sockaddr { ");
1877 str = sysdecode_sockaddr_family(sa->sa_family);
1878 if (str != NULL)
1879 printf("%s", str);
1880 else
1881 printf("<invalid=%d>", sa->sa_family);
1882 printf(", ");
1883
1884 #define check_sockaddr_len(n) \
1885 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
1886 printf("invalid"); \
1887 break; \
1888 }
1889
1890 switch(sa->sa_family) {
1891 case AF_INET: {
1892 struct sockaddr_in sa_in;
1893
1894 memset(&sa_in, 0, sizeof(sa_in));
1895 memcpy(&sa_in, sa, sa->sa_len);
1896 check_sockaddr_len(in);
1897 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1898 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1899 break;
1900 }
1901 case AF_INET6: {
1902 struct sockaddr_in6 sa_in6;
1903
1904 memset(&sa_in6, 0, sizeof(sa_in6));
1905 memcpy(&sa_in6, sa, sa->sa_len);
1906 check_sockaddr_len(in6);
1907 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1908 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1909 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1910 break;
1911 }
1912 case AF_UNIX: {
1913 struct sockaddr_un sa_un;
1914
1915 memset(&sa_un, 0, sizeof(sa_un));
1916 memcpy(&sa_un, sa, sa->sa_len);
1917 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1918 break;
1919 }
1920 default:
1921 printf("unknown address family");
1922 }
1923 printf(" }\n");
1924 }
1925
1926 void
ktrstat(struct stat * statp)1927 ktrstat(struct stat *statp)
1928 {
1929 char mode[12], timestr[PATH_MAX + 4];
1930 struct passwd *pwd;
1931 struct group *grp;
1932 struct tm *tm;
1933
1934 /*
1935 * note: ktrstruct() has already verified that statp points to a
1936 * buffer exactly sizeof(struct stat) bytes long.
1937 */
1938 printf("struct stat {");
1939 printf("dev=%ju, ino=%ju, ",
1940 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1941 if (!resolv)
1942 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1943 else {
1944 strmode(statp->st_mode, mode);
1945 printf("mode=%s, ", mode);
1946 }
1947 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1948 if (!resolv) {
1949 pwd = NULL;
1950 } else {
1951 #ifdef WITH_CASPER
1952 if (cappwd != NULL)
1953 pwd = cap_getpwuid(cappwd, statp->st_uid);
1954 else
1955 #endif
1956 pwd = getpwuid(statp->st_uid);
1957 }
1958 if (pwd == NULL)
1959 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1960 else
1961 printf("uid=\"%s\", ", pwd->pw_name);
1962 if (!resolv) {
1963 grp = NULL;
1964 } else {
1965 #ifdef WITH_CASPER
1966 if (capgrp != NULL)
1967 grp = cap_getgrgid(capgrp, statp->st_gid);
1968 else
1969 #endif
1970 grp = getgrgid(statp->st_gid);
1971 }
1972 if (grp == NULL)
1973 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1974 else
1975 printf("gid=\"%s\", ", grp->gr_name);
1976 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1977 printf("atime=");
1978 if (!resolv)
1979 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1980 else {
1981 tm = localtime(&statp->st_atim.tv_sec);
1982 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1983 printf("\"%s\"", timestr);
1984 }
1985 if (statp->st_atim.tv_nsec != 0)
1986 printf(".%09ld, ", statp->st_atim.tv_nsec);
1987 else
1988 printf(", ");
1989 printf("mtime=");
1990 if (!resolv)
1991 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1992 else {
1993 tm = localtime(&statp->st_mtim.tv_sec);
1994 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1995 printf("\"%s\"", timestr);
1996 }
1997 if (statp->st_mtim.tv_nsec != 0)
1998 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1999 else
2000 printf(", ");
2001 printf("ctime=");
2002 if (!resolv)
2003 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
2004 else {
2005 tm = localtime(&statp->st_ctim.tv_sec);
2006 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
2007 printf("\"%s\"", timestr);
2008 }
2009 if (statp->st_ctim.tv_nsec != 0)
2010 printf(".%09ld, ", statp->st_ctim.tv_nsec);
2011 else
2012 printf(", ");
2013 printf("birthtime=");
2014 if (!resolv)
2015 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
2016 else {
2017 tm = localtime(&statp->st_birthtim.tv_sec);
2018 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
2019 printf("\"%s\"", timestr);
2020 }
2021 if (statp->st_birthtim.tv_nsec != 0)
2022 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
2023 else
2024 printf(", ");
2025 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
2026 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
2027 (intmax_t)statp->st_blocks, statp->st_flags);
2028 printf(" }\n");
2029 }
2030
2031 void
ktrbitset(char * name,struct bitset * set,size_t setlen)2032 ktrbitset(char *name, struct bitset *set, size_t setlen)
2033 {
2034 int i, maxi, c = 0;
2035
2036 if (setlen > INT32_MAX)
2037 setlen = INT32_MAX;
2038 maxi = setlen * CHAR_BIT;
2039 printf("%s [ ", name);
2040 for (i = 0; i < maxi; i++) {
2041 if (!BIT_ISSET(setlen, i, set))
2042 continue;
2043 if (c == 0)
2044 printf("%d", i);
2045 else
2046 printf(", %d", i);
2047 c++;
2048 }
2049 if (c == 0)
2050 printf(" empty ]\n");
2051 else
2052 printf(" ]\n");
2053 }
2054
2055 void
ktrstruct(char * buf,size_t buflen)2056 ktrstruct(char *buf, size_t buflen)
2057 {
2058 char *name, *data;
2059 size_t namelen, datalen;
2060 int i;
2061 cap_rights_t rights;
2062 struct itimerval it;
2063 struct stat sb;
2064 struct sockaddr_storage ss;
2065 struct bitset *set;
2066
2067 for (name = buf, namelen = 0;
2068 namelen < buflen && name[namelen] != '\0';
2069 ++namelen)
2070 /* nothing */;
2071 if (namelen == buflen)
2072 goto invalid;
2073 if (name[namelen] != '\0')
2074 goto invalid;
2075 data = buf + namelen + 1;
2076 datalen = buflen - namelen - 1;
2077 if (datalen == 0)
2078 goto invalid;
2079 /* sanity check */
2080 for (i = 0; i < (int)namelen; ++i)
2081 if (!isalpha(name[i]) && name[i] != '_')
2082 goto invalid;
2083 if (strcmp(name, "caprights") == 0) {
2084 if (datalen != sizeof(cap_rights_t))
2085 goto invalid;
2086 memcpy(&rights, data, datalen);
2087 ktrcaprights(&rights);
2088 } else if (strcmp(name, "itimerval") == 0) {
2089 if (datalen != sizeof(struct itimerval))
2090 goto invalid;
2091 memcpy(&it, data, datalen);
2092 ktritimerval(&it);
2093 } else if (strcmp(name, "stat") == 0) {
2094 if (datalen != sizeof(struct stat))
2095 goto invalid;
2096 memcpy(&sb, data, datalen);
2097 ktrstat(&sb);
2098 } else if (strcmp(name, "sockaddr") == 0) {
2099 if (datalen > sizeof(ss))
2100 goto invalid;
2101 memcpy(&ss, data, datalen);
2102 if (datalen != ss.ss_len)
2103 goto invalid;
2104 ktrsockaddr((struct sockaddr *)&ss);
2105 } else if (strcmp(name, "cpuset_t") == 0) {
2106 if (datalen < 1)
2107 goto invalid;
2108 set = malloc(datalen);
2109 if (set == NULL)
2110 errx(1, "%s", strerror(ENOMEM));
2111 memcpy(set, data, datalen);
2112 ktrbitset(name, set, datalen);
2113 free(set);
2114 } else {
2115 #ifdef SYSDECODE_HAVE_LINUX
2116 if (ktrstruct_linux(name, data, datalen) == false)
2117 #endif
2118 printf("unknown structure\n");
2119 }
2120 return;
2121 invalid:
2122 printf("invalid record\n");
2123 }
2124
2125 void
ktrcapfail(struct ktr_cap_fail * ktr)2126 ktrcapfail(struct ktr_cap_fail *ktr)
2127 {
2128 union ktr_cap_data *kcd = &ktr->cap_data;
2129
2130 switch (ktr->cap_type) {
2131 case CAPFAIL_NOTCAPABLE:
2132 /* operation on fd with insufficient capabilities */
2133 printf("operation requires ");
2134 sysdecode_cap_rights(stdout, &kcd->cap_needed);
2135 printf(", descriptor holds ");
2136 sysdecode_cap_rights(stdout, &kcd->cap_held);
2137 break;
2138 case CAPFAIL_INCREASE:
2139 /* requested more capabilities than fd already has */
2140 printf("attempt to increase capabilities from ");
2141 sysdecode_cap_rights(stdout, &kcd->cap_held);
2142 printf(" to ");
2143 sysdecode_cap_rights(stdout, &kcd->cap_needed);
2144 break;
2145 case CAPFAIL_SYSCALL:
2146 /* called restricted syscall */
2147 printf("system call not allowed: ");
2148 syscallname(ktr->cap_code, ktr->cap_svflags);
2149 if (syscallabi(ktr->cap_svflags) == SYSDECODE_ABI_FREEBSD) {
2150 switch (ktr->cap_code) {
2151 case SYS_sysarch:
2152 printf(", op: ");
2153 print_integer_arg(sysdecode_sysarch_number,
2154 kcd->cap_int);
2155 break;
2156 case SYS_fcntl:
2157 printf(", cmd: ");
2158 print_integer_arg(sysdecode_fcntl_cmd,
2159 kcd->cap_int);
2160 break;
2161 }
2162 }
2163 break;
2164 case CAPFAIL_SIGNAL:
2165 /* sent signal to proc other than self */
2166 syscallname(ktr->cap_code, ktr->cap_svflags);
2167 printf(": signal delivery not allowed: ");
2168 print_integer_arg(sysdecode_signal, kcd->cap_int);
2169 break;
2170 case CAPFAIL_PROTO:
2171 /* created socket with restricted protocol */
2172 syscallname(ktr->cap_code, ktr->cap_svflags);
2173 printf(": protocol not allowed: ");
2174 print_integer_arg(sysdecode_ipproto, kcd->cap_int);
2175 break;
2176 case CAPFAIL_SOCKADDR:
2177 /* unable to look up address */
2178 syscallname(ktr->cap_code, ktr->cap_svflags);
2179 printf(": restricted address lookup: ");
2180 ktrsockaddr(&kcd->cap_sockaddr);
2181 return;
2182 case CAPFAIL_NAMEI:
2183 /* absolute or AT_FDCWD path, ".." path, etc. */
2184 syscallname(ktr->cap_code, ktr->cap_svflags);
2185 printf(": restricted VFS lookup: %s\n", kcd->cap_path);
2186 return;
2187 case CAPFAIL_CPUSET:
2188 /* modification of an external cpuset */
2189 syscallname(ktr->cap_code, ktr->cap_svflags);
2190 printf(": restricted cpuset operation\n");
2191 return;
2192 default:
2193 syscallname(ktr->cap_code, ktr->cap_svflags);
2194 printf(": unknown capability failure\n");
2195 return;
2196 }
2197 printf("\n");
2198 }
2199
2200 void
ktrfault(struct ktr_fault * ktr)2201 ktrfault(struct ktr_fault *ktr)
2202 {
2203
2204 printf("0x%jx ", (uintmax_t)ktr->vaddr);
2205 print_mask_arg(sysdecode_vmprot, ktr->type);
2206 printf("\n");
2207 }
2208
2209 void
ktrfaultend(struct ktr_faultend * ktr)2210 ktrfaultend(struct ktr_faultend *ktr)
2211 {
2212 const char *str;
2213
2214 str = sysdecode_vmresult(ktr->result);
2215 if (str != NULL)
2216 printf("%s", str);
2217 else
2218 printf("<invalid=%d>", ktr->result);
2219 printf("\n");
2220 }
2221
2222 void
ktrkevent(struct kevent * kev)2223 ktrkevent(struct kevent *kev)
2224 {
2225
2226 printf("{ ident=");
2227 switch (kev->filter) {
2228 case EVFILT_READ:
2229 case EVFILT_WRITE:
2230 case EVFILT_VNODE:
2231 case EVFILT_PROC:
2232 case EVFILT_TIMER:
2233 case EVFILT_PROCDESC:
2234 case EVFILT_EMPTY:
2235 printf("%ju", (uintmax_t)kev->ident);
2236 break;
2237 case EVFILT_SIGNAL:
2238 print_signal(kev->ident);
2239 break;
2240 default:
2241 printf("%p", (void *)kev->ident);
2242 }
2243 printf(", filter=");
2244 print_integer_arg(sysdecode_kevent_filter, kev->filter);
2245 printf(", flags=");
2246 print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2247 printf(", fflags=");
2248 sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2249 decimal ? 10 : 16);
2250 printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2251 }
2252
2253 void
ktrpollfd(struct pollfd * pfd)2254 ktrpollfd(struct pollfd *pfd)
2255 {
2256
2257 printf("{ fd=%d", pfd->fd);
2258 printf(", events=");
2259 print_mask_arg0(sysdecode_pollfd_events, pfd->events);
2260 printf(", revents=");
2261 print_mask_arg0(sysdecode_pollfd_events, pfd->revents);
2262 printf("}");
2263 }
2264
2265 void
ktrstructarray(struct ktr_struct_array * ksa,size_t buflen)2266 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2267 {
2268 struct kevent kev;
2269 struct pollfd pfd;
2270 char *name, *data;
2271 size_t namelen, datalen;
2272 int i;
2273 bool first;
2274
2275 buflen -= sizeof(*ksa);
2276 for (name = (char *)(ksa + 1), namelen = 0;
2277 namelen < buflen && name[namelen] != '\0';
2278 ++namelen)
2279 /* nothing */;
2280 if (namelen == buflen)
2281 goto invalid;
2282 if (name[namelen] != '\0')
2283 goto invalid;
2284 /* sanity check */
2285 for (i = 0; i < (int)namelen; ++i)
2286 if (!isalnum(name[i]) && name[i] != '_')
2287 goto invalid;
2288 data = name + namelen + 1;
2289 datalen = buflen - namelen - 1;
2290 printf("struct %s[] = { ", name);
2291 first = true;
2292 for (; datalen >= ksa->struct_size;
2293 data += ksa->struct_size, datalen -= ksa->struct_size) {
2294 if (!first)
2295 printf("\n ");
2296 else
2297 first = false;
2298 if (strcmp(name, "kevent") == 0) {
2299 if (ksa->struct_size != sizeof(kev))
2300 goto bad_size;
2301 memcpy(&kev, data, sizeof(kev));
2302 ktrkevent(&kev);
2303 } else if (strcmp(name, "freebsd11_kevent") == 0) {
2304 struct freebsd11_kevent kev11;
2305
2306 if (ksa->struct_size != sizeof(kev11))
2307 goto bad_size;
2308 memcpy(&kev11, data, sizeof(kev11));
2309 memset(&kev, 0, sizeof(kev));
2310 kev.ident = kev11.ident;
2311 kev.filter = kev11.filter;
2312 kev.flags = kev11.flags;
2313 kev.fflags = kev11.fflags;
2314 kev.data = kev11.data;
2315 kev.udata = kev11.udata;
2316 ktrkevent(&kev);
2317 #ifdef _WANT_KEVENT32
2318 } else if (strcmp(name, "kevent32") == 0) {
2319 struct kevent32 kev32;
2320
2321 if (ksa->struct_size != sizeof(kev32))
2322 goto bad_size;
2323 memcpy(&kev32, data, sizeof(kev32));
2324 memset(&kev, 0, sizeof(kev));
2325 kev.ident = kev32.ident;
2326 kev.filter = kev32.filter;
2327 kev.flags = kev32.flags;
2328 kev.fflags = kev32.fflags;
2329 #if BYTE_ORDER == BIG_ENDIAN
2330 kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2331 #else
2332 kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2333 #endif
2334 kev.udata = (void *)(uintptr_t)kev32.udata;
2335 ktrkevent(&kev);
2336 } else if (strcmp(name, "freebsd11_kevent32") == 0) {
2337 struct freebsd11_kevent32 kev32;
2338
2339 if (ksa->struct_size != sizeof(kev32))
2340 goto bad_size;
2341 memcpy(&kev32, data, sizeof(kev32));
2342 memset(&kev, 0, sizeof(kev));
2343 kev.ident = kev32.ident;
2344 kev.filter = kev32.filter;
2345 kev.flags = kev32.flags;
2346 kev.fflags = kev32.fflags;
2347 kev.data = kev32.data;
2348 kev.udata = (void *)(uintptr_t)kev32.udata;
2349 ktrkevent(&kev);
2350 #endif
2351 } else if (strcmp(name, "pollfd") == 0) {
2352 if (ksa->struct_size != sizeof(pfd))
2353 goto bad_size;
2354 memcpy(&pfd, data, sizeof(pfd));
2355 ktrpollfd(&pfd);
2356 } else {
2357 printf("<unknown structure> }\n");
2358 return;
2359 }
2360 }
2361 printf(" }\n");
2362 return;
2363 invalid:
2364 printf("invalid record\n");
2365 return;
2366 bad_size:
2367 printf("<bad size> }\n");
2368 return;
2369 }
2370
2371 void
usage(void)2372 usage(void)
2373 {
2374 fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2375 "[-m maxdata] [-p pid] [-t trstr]\n");
2376 exit(1);
2377 }
2378