1 /*- 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1988, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93"; 43 #endif 44 #endif /* not lint */ 45 #include <sys/cdefs.h> 46 __FBSDID("$FreeBSD$"); 47 48 #define _KERNEL 49 extern int errno; 50 #include <sys/errno.h> 51 #undef _KERNEL 52 #include <sys/param.h> 53 #include <sys/errno.h> 54 #define _KERNEL 55 #include <sys/time.h> 56 #undef _KERNEL 57 #include <sys/uio.h> 58 #include <sys/ktrace.h> 59 #include <sys/ioctl.h> 60 #include <sys/socket.h> 61 #include <dlfcn.h> 62 #include <err.h> 63 #include <locale.h> 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <unistd.h> 68 #include <vis.h> 69 #include "ktrace.h" 70 #include "kdump_subr.h" 71 72 int fread_tail(void *, int, int); 73 void dumpheader(struct ktr_header *); 74 void ktrsyscall(struct ktr_syscall *); 75 void ktrsysret(struct ktr_sysret *); 76 void ktrnamei(char *, int); 77 void hexdump(char *, int, int); 78 void visdump(char *, int, int); 79 void ktrgenio(struct ktr_genio *, int); 80 void ktrpsig(struct ktr_psig *); 81 void ktrcsw(struct ktr_csw *); 82 void ktruser(int, unsigned char *); 83 void usage(void); 84 const char *ioctlname(u_long); 85 86 int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata; 87 const char *tracefile = DEF_TRACEFILE; 88 struct ktr_header ktr_header; 89 90 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0) 91 92 int 93 main(int argc, char *argv[]) 94 { 95 int ch, ktrlen, size; 96 void *m; 97 int trpoints = ALL_POINTS; 98 int drop_logged; 99 pid_t pid = 0; 100 101 (void) setlocale(LC_CTYPE, ""); 102 103 while ((ch = getopt(argc,argv,"f:dElm:np:HRsTt:")) != -1) 104 switch((char)ch) { 105 case 'f': 106 tracefile = optarg; 107 break; 108 case 'd': 109 decimal = 1; 110 break; 111 case 'l': 112 tail = 1; 113 break; 114 case 'm': 115 maxdata = atoi(optarg); 116 break; 117 case 'n': 118 fancy = 0; 119 break; 120 case 'p': 121 pid = atoi(optarg); 122 break; 123 case 's': 124 suppressdata = 1; 125 break; 126 case 'E': 127 timestamp = 3; /* elapsed timestamp */ 128 break; 129 case 'H': 130 threads = 1; 131 break; 132 case 'R': 133 timestamp = 2; /* relative timestamp */ 134 break; 135 case 'T': 136 timestamp = 1; 137 break; 138 case 't': 139 trpoints = getpoints(optarg); 140 if (trpoints < 0) 141 errx(1, "unknown trace point in %s", optarg); 142 break; 143 default: 144 usage(); 145 } 146 147 if (argc > optind) 148 usage(); 149 150 m = (void *)malloc(size = 1025); 151 if (m == NULL) 152 errx(1, "%s", strerror(ENOMEM)); 153 if (!freopen(tracefile, "r", stdin)) 154 err(1, "%s", tracefile); 155 drop_logged = 0; 156 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) { 157 if (ktr_header.ktr_type & KTR_DROP) { 158 ktr_header.ktr_type &= ~KTR_DROP; 159 if (!drop_logged && threads) { 160 (void)printf("%6d %6d %-8.*s Events dropped.\n", 161 ktr_header.ktr_pid, ktr_header.ktr_tid > 162 0 ? ktr_header.ktr_tid : 0, MAXCOMLEN, 163 ktr_header.ktr_comm); 164 drop_logged = 1; 165 } else if (!drop_logged) { 166 (void)printf("%6d %-8.*s Events dropped.\n", 167 ktr_header.ktr_pid, MAXCOMLEN, 168 ktr_header.ktr_comm); 169 drop_logged = 1; 170 } 171 } 172 if (trpoints & (1<<ktr_header.ktr_type)) 173 if (pid == 0 || ktr_header.ktr_pid == pid) 174 dumpheader(&ktr_header); 175 if ((ktrlen = ktr_header.ktr_len) < 0) 176 errx(1, "bogus length 0x%x", ktrlen); 177 if (ktrlen > size) { 178 m = (void *)realloc(m, ktrlen+1); 179 if (m == NULL) 180 errx(1, "%s", strerror(ENOMEM)); 181 size = ktrlen; 182 } 183 if (ktrlen && fread_tail(m, ktrlen, 1) == 0) 184 errx(1, "data too short"); 185 if (pid && ktr_header.ktr_pid != pid) 186 continue; 187 if ((trpoints & (1<<ktr_header.ktr_type)) == 0) 188 continue; 189 drop_logged = 0; 190 switch (ktr_header.ktr_type) { 191 case KTR_SYSCALL: 192 ktrsyscall((struct ktr_syscall *)m); 193 break; 194 case KTR_SYSRET: 195 ktrsysret((struct ktr_sysret *)m); 196 break; 197 case KTR_NAMEI: 198 ktrnamei(m, ktrlen); 199 break; 200 case KTR_GENIO: 201 ktrgenio((struct ktr_genio *)m, ktrlen); 202 break; 203 case KTR_PSIG: 204 ktrpsig((struct ktr_psig *)m); 205 break; 206 case KTR_CSW: 207 ktrcsw((struct ktr_csw *)m); 208 break; 209 case KTR_USER: 210 ktruser(ktrlen, m); 211 break; 212 default: 213 printf("\n"); 214 break; 215 } 216 if (tail) 217 (void)fflush(stdout); 218 } 219 return 0; 220 } 221 222 int 223 fread_tail(void *buf, int size, int num) 224 { 225 int i; 226 227 while ((i = fread(buf, size, num, stdin)) == 0 && tail) { 228 (void)sleep(1); 229 clearerr(stdin); 230 } 231 return (i); 232 } 233 234 void 235 dumpheader(struct ktr_header *kth) 236 { 237 static char unknown[64]; 238 static struct timeval prevtime, temp; 239 const char *type; 240 241 switch (kth->ktr_type) { 242 case KTR_SYSCALL: 243 type = "CALL"; 244 break; 245 case KTR_SYSRET: 246 type = "RET "; 247 break; 248 case KTR_NAMEI: 249 type = "NAMI"; 250 break; 251 case KTR_GENIO: 252 type = "GIO "; 253 break; 254 case KTR_PSIG: 255 type = "PSIG"; 256 break; 257 case KTR_CSW: 258 type = "CSW "; 259 break; 260 case KTR_USER: 261 type = "USER"; 262 break; 263 default: 264 (void)sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type); 265 type = unknown; 266 } 267 268 /* 269 * The ktr_tid field was previously the ktr_buffer field, which held 270 * the kernel pointer value for the buffer associated with data 271 * following the record header. It now holds a threadid, but only 272 * for trace files after the change. Older trace files still contain 273 * kernel pointers. Detect this and suppress the results by printing 274 * negative tid's as 0. 275 */ 276 if (threads) 277 (void)printf("%6d %6d %-8.*s ", kth->ktr_pid, kth->ktr_tid > 278 0 ? kth->ktr_tid : 0, MAXCOMLEN, kth->ktr_comm); 279 else 280 (void)printf("%6d %-8.*s ", kth->ktr_pid, MAXCOMLEN, 281 kth->ktr_comm); 282 if (timestamp) { 283 if (timestamp == 3) { 284 if (prevtime.tv_sec == 0) 285 prevtime = kth->ktr_time; 286 timevalsub(&kth->ktr_time, &prevtime); 287 } 288 if (timestamp == 2) { 289 temp = kth->ktr_time; 290 timevalsub(&kth->ktr_time, &prevtime); 291 prevtime = temp; 292 } 293 (void)printf("%ld.%06ld ", 294 kth->ktr_time.tv_sec, kth->ktr_time.tv_usec); 295 } 296 (void)printf("%s ", type); 297 } 298 299 #include <sys/syscall.h> 300 #define KTRACE 301 #include <sys/kern/syscalls.c> 302 #undef KTRACE 303 int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]); 304 305 void 306 ktrsyscall(struct ktr_syscall *ktr) 307 { 308 int narg = ktr->ktr_narg; 309 register_t *ip; 310 311 if (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0) 312 (void)printf("[%d]", ktr->ktr_code); 313 else 314 (void)printf("%s", syscallnames[ktr->ktr_code]); 315 ip = &ktr->ktr_args[0]; 316 if (narg) { 317 char c = '('; 318 if (fancy) { 319 320 #define print_number(i,n,c) do { \ 321 if (decimal) \ 322 (void)printf("%c%ld", c, (long)*i); \ 323 else \ 324 (void)printf("%c%#lx", c, (long)*i); \ 325 i++; \ 326 n--; \ 327 c = ','; \ 328 } while (0); 329 330 if (ktr->ktr_code == SYS_ioctl) { 331 const char *cp; 332 print_number(ip,narg,c); 333 if ((cp = ioctlname(*ip)) != NULL) 334 (void)printf(",%s", cp); 335 else { 336 if (decimal) 337 (void)printf(",%ld", (long)*ip); 338 else 339 (void)printf(",%#lx ", (long)*ip); 340 } 341 c = ','; 342 ip++; 343 narg--; 344 } else if (ktr->ktr_code == SYS_ptrace) { 345 (void)putchar('('); 346 ptraceopname ((int)*ip); 347 c = ','; 348 ip++; 349 narg--; 350 } else if (ktr->ktr_code == SYS_access || 351 ktr->ktr_code == SYS_eaccess) { 352 print_number(ip,narg,c); 353 (void)putchar(','); 354 accessmodename ((int)*ip); 355 ip++; 356 narg--; 357 } else if (ktr->ktr_code == SYS_open) { 358 int flags; 359 int mode; 360 print_number(ip,narg,c); 361 flags = *ip; 362 mode = *++ip; 363 (void)putchar(','); 364 flagsandmodename (flags, mode, decimal); 365 ip++; 366 narg-=2; 367 } else if (ktr->ktr_code == SYS_wait4) { 368 print_number(ip,narg,c); 369 print_number(ip,narg,c); 370 (void)putchar(','); 371 wait4optname ((int)*ip); 372 ip++; 373 narg--; 374 } else if (ktr->ktr_code == SYS_chmod || 375 ktr->ktr_code == SYS_fchmod || 376 ktr->ktr_code == SYS_lchmod) { 377 print_number(ip,narg,c); 378 (void)putchar(','); 379 modename ((int)*ip); 380 ip++; 381 narg--; 382 } else if (ktr->ktr_code == SYS_mknod) { 383 print_number(ip,narg,c); 384 (void)putchar(','); 385 modename ((int)*ip); 386 ip++; 387 narg--; 388 } else if (ktr->ktr_code == SYS_getfsstat) { 389 print_number(ip,narg,c); 390 print_number(ip,narg,c); 391 (void)putchar(','); 392 getfsstatflagsname ((int)*ip); 393 ip++; 394 narg--; 395 } else if (ktr->ktr_code == SYS_mount) { 396 print_number(ip,narg,c); 397 print_number(ip,narg,c); 398 (void)putchar(','); 399 mountflagsname ((int)*ip); 400 ip++; 401 narg--; 402 } else if (ktr->ktr_code == SYS_unmount) { 403 print_number(ip,narg,c); 404 (void)putchar(','); 405 mountflagsname ((int)*ip); 406 ip++; 407 narg--; 408 } else if (ktr->ktr_code == SYS_recvmsg || 409 ktr->ktr_code == SYS_sendmsg) { 410 print_number(ip,narg,c); 411 print_number(ip,narg,c); 412 (void)putchar(','); 413 sendrecvflagsname ((int)*ip); 414 ip++; 415 narg--; 416 } else if (ktr->ktr_code == SYS_recvfrom || 417 ktr->ktr_code == SYS_sendto) { 418 print_number(ip,narg,c); 419 print_number(ip,narg,c); 420 print_number(ip,narg,c); 421 (void)putchar(','); 422 sendrecvflagsname ((int)*ip); 423 ip++; 424 narg--; 425 } else if (ktr->ktr_code == SYS_chflags || 426 ktr->ktr_code == SYS_fchflags || 427 ktr->ktr_code == SYS_lchflags) { 428 print_number(ip,narg,c); 429 (void)putchar(','); 430 modename((int)*ip); 431 ip++; 432 narg--; 433 } else if (ktr->ktr_code == SYS_kill) { 434 print_number(ip,narg,c); 435 (void)putchar(','); 436 signame((int)*ip); 437 ip++; 438 narg--; 439 } else if (ktr->ktr_code == SYS_reboot) { 440 (void)putchar('('); 441 rebootoptname((int)*ip); 442 ip++; 443 narg--; 444 } else if (ktr->ktr_code == SYS_umask) { 445 (void)putchar('('); 446 modename((int)*ip); 447 ip++; 448 narg--; 449 } else if (ktr->ktr_code == SYS_msync) { 450 print_number(ip,narg,c); 451 print_number(ip,narg,c); 452 (void)putchar(','); 453 msyncflagsname((int)*ip); 454 ip++; 455 narg--; 456 #ifdef SYS_freebsd6_mmap 457 } else if (ktr->ktr_code == SYS_freebsd6_mmap) { 458 print_number(ip,narg,c); 459 print_number(ip,narg,c); 460 (void)putchar(','); 461 mmapprotname ((int)*ip); 462 (void)putchar(','); 463 ip++; 464 narg--; 465 mmapflagsname ((int)*ip); 466 ip++; 467 narg--; 468 #endif 469 } else if (ktr->ktr_code == SYS_mmap) { 470 print_number(ip,narg,c); 471 print_number(ip,narg,c); 472 (void)putchar(','); 473 mmapprotname ((int)*ip); 474 (void)putchar(','); 475 ip++; 476 narg--; 477 mmapflagsname ((int)*ip); 478 ip++; 479 narg--; 480 } else if (ktr->ktr_code == SYS_mprotect) { 481 print_number(ip,narg,c); 482 print_number(ip,narg,c); 483 (void)putchar(','); 484 mmapprotname ((int)*ip); 485 ip++; 486 narg--; 487 } else if (ktr->ktr_code == SYS_madvise) { 488 print_number(ip,narg,c); 489 print_number(ip,narg,c); 490 (void)putchar(','); 491 madvisebehavname((int)*ip); 492 ip++; 493 narg--; 494 } else if (ktr->ktr_code == SYS_setpriority) { 495 print_number(ip,narg,c); 496 print_number(ip,narg,c); 497 (void)putchar(','); 498 prioname((int)*ip); 499 ip++; 500 narg--; 501 } else if (ktr->ktr_code == SYS_fcntl) { 502 int cmd; 503 int arg; 504 print_number(ip,narg,c); 505 cmd = *ip; 506 arg = *++ip; 507 (void)putchar(','); 508 fcntlcmdname(cmd, arg, decimal); 509 ip++; 510 narg-=2; 511 } else if (ktr->ktr_code == SYS_socket) { 512 int sockdomain; 513 (void)putchar('('); 514 sockdomain=(int)*ip; 515 sockdomainname(sockdomain); 516 ip++; 517 narg--; 518 (void)putchar(','); 519 socktypename((int)*ip); 520 ip++; 521 narg--; 522 if (sockdomain == PF_INET || 523 sockdomain == PF_INET6) { 524 (void)putchar(','); 525 sockipprotoname((int)*ip); 526 ip++; 527 narg--; 528 } 529 c = ','; 530 } else if (ktr->ktr_code == SYS_setsockopt || 531 ktr->ktr_code == SYS_getsockopt) { 532 print_number(ip,narg,c); 533 (void)putchar(','); 534 sockoptlevelname((int)*ip, decimal); 535 if ((int)*ip == SOL_SOCKET) { 536 ip++; 537 narg--; 538 (void)putchar(','); 539 sockoptname((int)*ip); 540 } 541 ip++; 542 narg--; 543 #ifdef SYS_freebsd6_lseek 544 } else if (ktr->ktr_code == SYS_freebsd6_lseek) { 545 print_number(ip,narg,c); 546 /* Hidden 'pad' argument, not in lseek(2) */ 547 print_number(ip,narg,c); 548 print_number(ip,narg,c); 549 (void)putchar(','); 550 whencename ((int)*ip); 551 ip++; 552 narg--; 553 #endif 554 } else if (ktr->ktr_code == SYS_lseek) { 555 print_number(ip,narg,c); 556 /* Hidden 'pad' argument, not in lseek(2) */ 557 print_number(ip,narg,c); 558 (void)putchar(','); 559 whencename ((int)*ip); 560 ip++; 561 narg--; 562 563 } else if (ktr->ktr_code == SYS_flock) { 564 print_number(ip,narg,c); 565 (void)putchar(','); 566 flockname((int)*ip); 567 ip++; 568 narg--; 569 } else if (ktr->ktr_code == SYS_mkfifo || 570 ktr->ktr_code == SYS_mkdir) { 571 print_number(ip,narg,c); 572 (void)putchar(','); 573 modename((int)*ip); 574 ip++; 575 narg--; 576 } else if (ktr->ktr_code == SYS_shutdown) { 577 print_number(ip,narg,c); 578 (void)putchar(','); 579 shutdownhowname((int)*ip); 580 ip++; 581 narg--; 582 } else if (ktr->ktr_code == SYS_socketpair) { 583 (void)putchar('('); 584 sockdomainname((int)*ip); 585 ip++; 586 narg--; 587 (void)putchar(','); 588 socktypename((int)*ip); 589 ip++; 590 narg--; 591 c = ','; 592 } else if (ktr->ktr_code == SYS_getrlimit || 593 ktr->ktr_code == SYS_setrlimit) { 594 (void)putchar('('); 595 rlimitname((int)*ip); 596 ip++; 597 narg--; 598 c = ','; 599 } else if (ktr->ktr_code == SYS_quotactl) { 600 print_number(ip,narg,c); 601 (void)putchar(','); 602 quotactlname((int)*ip); 603 ip++; 604 narg--; 605 c = ','; 606 } else if (ktr->ktr_code == SYS_nfssvc) { 607 (void)putchar('('); 608 nfssvcname((int)*ip); 609 ip++; 610 narg--; 611 c = ','; 612 } else if (ktr->ktr_code == SYS_rtprio) { 613 (void)putchar('('); 614 rtprioname((int)*ip); 615 ip++; 616 narg--; 617 c = ','; 618 } else if (ktr->ktr_code == SYS___semctl) { 619 print_number(ip,narg,c); 620 print_number(ip,narg,c); 621 (void)putchar(','); 622 semctlname((int)*ip); 623 ip++; 624 narg--; 625 } else if (ktr->ktr_code == SYS_semget) { 626 print_number(ip,narg,c); 627 print_number(ip,narg,c); 628 (void)putchar(','); 629 semgetname((int)*ip); 630 ip++; 631 narg--; 632 } else if (ktr->ktr_code == SYS_msgctl) { 633 print_number(ip,narg,c); 634 (void)putchar(','); 635 shmctlname((int)*ip); 636 ip++; 637 narg--; 638 } else if (ktr->ktr_code == SYS_shmat) { 639 print_number(ip,narg,c); 640 print_number(ip,narg,c); 641 (void)putchar(','); 642 shmatname((int)*ip); 643 ip++; 644 narg--; 645 } else if (ktr->ktr_code == SYS_shmctl) { 646 print_number(ip,narg,c); 647 (void)putchar(','); 648 shmctlname((int)*ip); 649 ip++; 650 narg--; 651 } else if (ktr->ktr_code == SYS_minherit) { 652 print_number(ip,narg,c); 653 print_number(ip,narg,c); 654 (void)putchar(','); 655 minheritname((int)*ip); 656 ip++; 657 narg--; 658 } else if (ktr->ktr_code == SYS_rfork) { 659 (void)putchar('('); 660 rforkname((int)*ip); 661 ip++; 662 narg--; 663 c = ','; 664 } else if (ktr->ktr_code == SYS_lio_listio) { 665 (void)putchar('('); 666 lio_listioname((int)*ip); 667 ip++; 668 narg--; 669 c = ','; 670 } else if (ktr->ktr_code == SYS_mlockall) { 671 (void)putchar('('); 672 mlockallname((int)*ip); 673 ip++; 674 narg--; 675 } else if (ktr->ktr_code == SYS_sched_setscheduler) { 676 print_number(ip,narg,c); 677 (void)putchar(','); 678 schedpolicyname((int)*ip); 679 ip++; 680 narg--; 681 } else if (ktr->ktr_code == SYS_sched_get_priority_max || 682 ktr->ktr_code == SYS_sched_get_priority_min) { 683 (void)putchar('('); 684 schedpolicyname((int)*ip); 685 ip++; 686 narg--; 687 } else if (ktr->ktr_code == SYS_sendfile) { 688 print_number(ip,narg,c); 689 print_number(ip,narg,c); 690 print_number(ip,narg,c); 691 print_number(ip,narg,c); 692 print_number(ip,narg,c); 693 print_number(ip,narg,c); 694 (void)putchar(','); 695 sendfileflagsname((int)*ip); 696 ip++; 697 narg--; 698 } else if (ktr->ktr_code == SYS_kldsym) { 699 print_number(ip,narg,c); 700 (void)putchar(','); 701 kldsymcmdname((int)*ip); 702 ip++; 703 narg--; 704 } else if (ktr->ktr_code == SYS_sigprocmask) { 705 (void)putchar('('); 706 sigprocmaskhowname((int)*ip); 707 ip++; 708 narg--; 709 c = ','; 710 } else if (ktr->ktr_code == SYS___acl_get_file || 711 ktr->ktr_code == SYS___acl_set_file || 712 ktr->ktr_code == SYS___acl_get_fd || 713 ktr->ktr_code == SYS___acl_set_fd || 714 ktr->ktr_code == SYS___acl_delete_file || 715 ktr->ktr_code == SYS___acl_delete_fd || 716 ktr->ktr_code == SYS___acl_aclcheck_file || 717 ktr->ktr_code == SYS___acl_aclcheck_fd || 718 ktr->ktr_code == SYS___acl_get_link || 719 ktr->ktr_code == SYS___acl_set_link || 720 ktr->ktr_code == SYS___acl_delete_link || 721 ktr->ktr_code == SYS___acl_aclcheck_link) { 722 print_number(ip,narg,c); 723 (void)putchar(','); 724 acltypename((int)*ip); 725 ip++; 726 narg--; 727 } else if (ktr->ktr_code == SYS_sigaction) { 728 (void)putchar('('); 729 signame((int)*ip); 730 ip++; 731 narg--; 732 c = ','; 733 } else if (ktr->ktr_code == SYS_extattrctl) { 734 print_number(ip,narg,c); 735 (void)putchar(','); 736 extattrctlname((int)*ip); 737 ip++; 738 narg--; 739 } else if (ktr->ktr_code == SYS_nmount) { 740 print_number(ip,narg,c); 741 print_number(ip,narg,c); 742 (void)putchar(','); 743 mountflagsname ((int)*ip); 744 ip++; 745 narg--; 746 } else if (ktr->ktr_code == SYS_kse_thr_interrupt) { 747 print_number(ip,narg,c); 748 (void)putchar(','); 749 ksethrcmdname ((int)*ip); 750 ip++; 751 narg--; 752 } else if (ktr->ktr_code == SYS_thr_create) { 753 print_number(ip,narg,c); 754 print_number(ip,narg,c); 755 (void)putchar(','); 756 thrcreateflagsname ((int)*ip); 757 ip++; 758 narg--; 759 } else if (ktr->ktr_code == SYS_thr_kill) { 760 print_number(ip,narg,c); 761 (void)putchar(','); 762 signame ((int)*ip); 763 ip++; 764 narg--; 765 } else if (ktr->ktr_code == SYS_kldunloadf) { 766 print_number(ip,narg,c); 767 (void)putchar(','); 768 kldunloadfflagsname ((int)*ip); 769 ip++; 770 narg--; 771 } 772 } 773 while (narg) { 774 print_number(ip,narg,c); 775 } 776 (void)putchar(')'); 777 } 778 (void)putchar('\n'); 779 } 780 781 void 782 ktrsysret(struct ktr_sysret *ktr) 783 { 784 register_t ret = ktr->ktr_retval; 785 int error = ktr->ktr_error; 786 int code = ktr->ktr_code; 787 788 if (code >= nsyscalls || code < 0) 789 (void)printf("[%d] ", code); 790 else 791 (void)printf("%s ", syscallnames[code]); 792 793 if (error == 0) { 794 if (fancy) { 795 (void)printf("%d", ret); 796 if (ret < 0 || ret > 9) 797 (void)printf("/%#lx", (long)ret); 798 } else { 799 if (decimal) 800 (void)printf("%ld", (long)ret); 801 else 802 (void)printf("%#lx", (long)ret); 803 } 804 } else if (error == ERESTART) 805 (void)printf("RESTART"); 806 else if (error == EJUSTRETURN) 807 (void)printf("JUSTRETURN"); 808 else { 809 (void)printf("-1 errno %d", ktr->ktr_error); 810 if (fancy) 811 (void)printf(" %s", strerror(ktr->ktr_error)); 812 } 813 (void)putchar('\n'); 814 } 815 816 void 817 ktrnamei(char *cp, int len) 818 { 819 (void)printf("\"%.*s\"\n", len, cp); 820 } 821 822 void 823 hexdump(char *p, int len, int screenwidth) 824 { 825 int n, i; 826 int width; 827 828 width = 0; 829 do { 830 width += 2; 831 i = 13; /* base offset */ 832 i += (width / 2) + 1; /* spaces every second byte */ 833 i += (width * 2); /* width of bytes */ 834 i += 3; /* " |" */ 835 i += width; /* each byte */ 836 i += 1; /* "|" */ 837 } while (i < screenwidth); 838 width -= 2; 839 840 for (n = 0; n < len; n += width) { 841 for (i = n; i < n + width; i++) { 842 if ((i % width) == 0) { /* beginning of line */ 843 printf(" 0x%04x", i); 844 } 845 if ((i % 2) == 0) { 846 printf(" "); 847 } 848 if (i < len) 849 printf("%02x", p[i] & 0xff); 850 else 851 printf(" "); 852 } 853 printf(" |"); 854 for (i = n; i < n + width; i++) { 855 if (i >= len) 856 break; 857 if (p[i] >= ' ' && p[i] <= '~') 858 printf("%c", p[i]); 859 else 860 printf("."); 861 } 862 printf("|\n"); 863 } 864 if ((i % width) != 0) 865 printf("\n"); 866 } 867 868 void 869 visdump(char *dp, int datalen, int screenwidth) 870 { 871 int col = 0; 872 char *cp; 873 int width; 874 char visbuf[5]; 875 876 (void)printf(" \""); 877 col = 8; 878 for (;datalen > 0; datalen--, dp++) { 879 (void) vis(visbuf, *dp, VIS_CSTYLE, *(dp+1)); 880 cp = visbuf; 881 /* 882 * Keep track of printables and 883 * space chars (like fold(1)). 884 */ 885 if (col == 0) { 886 (void)putchar('\t'); 887 col = 8; 888 } 889 switch(*cp) { 890 case '\n': 891 col = 0; 892 (void)putchar('\n'); 893 continue; 894 case '\t': 895 width = 8 - (col&07); 896 break; 897 default: 898 width = strlen(cp); 899 } 900 if (col + width > (screenwidth-2)) { 901 (void)printf("\\\n\t"); 902 col = 8; 903 } 904 col += width; 905 do { 906 (void)putchar(*cp++); 907 } while (*cp); 908 } 909 if (col == 0) 910 (void)printf(" "); 911 (void)printf("\"\n"); 912 } 913 914 void 915 ktrgenio(struct ktr_genio *ktr, int len) 916 { 917 int datalen = len - sizeof (struct ktr_genio); 918 char *dp = (char *)ktr + sizeof (struct ktr_genio); 919 static int screenwidth = 0; 920 int i, binary; 921 922 if (screenwidth == 0) { 923 struct winsize ws; 924 925 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 && 926 ws.ws_col > 8) 927 screenwidth = ws.ws_col; 928 else 929 screenwidth = 80; 930 } 931 printf("fd %d %s %d byte%s\n", ktr->ktr_fd, 932 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen, 933 datalen == 1 ? "" : "s"); 934 if (suppressdata) 935 return; 936 if (maxdata && datalen > maxdata) 937 datalen = maxdata; 938 939 for (i = 0, binary = 0; i < datalen && binary == 0; i++) { 940 if (dp[i] >= 32 && dp[i] < 127) 941 continue; 942 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9) 943 continue; 944 binary = 1; 945 } 946 if (binary) 947 hexdump(dp, datalen, screenwidth); 948 else 949 visdump(dp, datalen, screenwidth); 950 } 951 952 const char *signames[] = { 953 "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */ 954 "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */ 955 "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */ 956 "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */ 957 "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */ 958 "USR2", NULL, /* 31 - 32 */ 959 }; 960 961 void 962 ktrpsig(struct ktr_psig *psig) 963 { 964 if (psig->signo > 0 && psig->signo < NSIG) 965 (void)printf("SIG%s ", signames[psig->signo]); 966 else 967 (void)printf("SIG %d ", psig->signo); 968 if (psig->action == SIG_DFL) 969 (void)printf("SIG_DFL\n"); 970 else { 971 (void)printf("caught handler=0x%lx mask=0x%x code=0x%x\n", 972 (u_long)psig->action, psig->mask.__bits[0], psig->code); 973 } 974 } 975 976 void 977 ktrcsw(struct ktr_csw *cs) 978 { 979 (void)printf("%s %s\n", cs->out ? "stop" : "resume", 980 cs->user ? "user" : "kernel"); 981 } 982 983 #define UTRACE_DLOPEN_START 1 984 #define UTRACE_DLOPEN_STOP 2 985 #define UTRACE_DLCLOSE_START 3 986 #define UTRACE_DLCLOSE_STOP 4 987 #define UTRACE_LOAD_OBJECT 5 988 #define UTRACE_UNLOAD_OBJECT 6 989 #define UTRACE_ADD_RUNDEP 7 990 #define UTRACE_PRELOAD_FINISHED 8 991 #define UTRACE_INIT_CALL 9 992 #define UTRACE_FINI_CALL 10 993 994 struct utrace_rtld { 995 char sig[4]; /* 'RTLD' */ 996 int event; 997 void *handle; 998 void *mapbase; 999 size_t mapsize; 1000 int refcnt; 1001 char name[MAXPATHLEN]; 1002 }; 1003 1004 void 1005 ktruser_rtld(int len, unsigned char *p) 1006 { 1007 struct utrace_rtld *ut = (struct utrace_rtld *)p; 1008 void *parent; 1009 int mode; 1010 1011 switch (ut->event) { 1012 case UTRACE_DLOPEN_START: 1013 mode = ut->refcnt; 1014 printf("dlopen(%s, ", ut->name); 1015 switch (mode & RTLD_MODEMASK) { 1016 case RTLD_NOW: 1017 printf("RTLD_NOW"); 1018 break; 1019 case RTLD_LAZY: 1020 printf("RTLD_LAZY"); 1021 break; 1022 default: 1023 printf("%#x", mode & RTLD_MODEMASK); 1024 } 1025 if (mode & RTLD_GLOBAL) 1026 printf(" | RTLD_GLOBAL"); 1027 if (mode & RTLD_TRACE) 1028 printf(" | RTLD_TRACE"); 1029 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE)) 1030 printf(" | %#x", mode & 1031 ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE)); 1032 printf(")\n"); 1033 break; 1034 case UTRACE_DLOPEN_STOP: 1035 printf("%p = dlopen(%s) ref %d\n", ut->handle, ut->name, 1036 ut->refcnt); 1037 break; 1038 case UTRACE_DLCLOSE_START: 1039 printf("dlclose(%p) (%s, %d)\n", ut->handle, ut->name, 1040 ut->refcnt); 1041 break; 1042 case UTRACE_DLCLOSE_STOP: 1043 printf("dlclose(%p) finished\n", ut->handle); 1044 break; 1045 case UTRACE_LOAD_OBJECT: 1046 printf("RTLD: loaded %p @ %p - %p (%s)\n", ut->handle, 1047 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1, 1048 ut->name); 1049 break; 1050 case UTRACE_UNLOAD_OBJECT: 1051 printf("RTLD: unloaded %p @ %p - %p (%s)\n", ut->handle, 1052 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1, 1053 ut->name); 1054 break; 1055 case UTRACE_ADD_RUNDEP: 1056 parent = ut->mapbase; 1057 printf("RTLD: %p now depends on %p (%s, %d)\n", parent, 1058 ut->handle, ut->name, ut->refcnt); 1059 break; 1060 case UTRACE_PRELOAD_FINISHED: 1061 printf("RTLD: LD_PRELOAD finished\n"); 1062 break; 1063 case UTRACE_INIT_CALL: 1064 printf("RTLD: init %p for %p (%s)\n", ut->mapbase, ut->handle, 1065 ut->name); 1066 break; 1067 case UTRACE_FINI_CALL: 1068 printf("RTLD: fini %p for %p (%s)\n", ut->mapbase, ut->handle, 1069 ut->name); 1070 break; 1071 default: 1072 p += 4; 1073 len -= 4; 1074 printf("RTLD: %d ", len); 1075 while (len--) 1076 if (decimal) 1077 printf(" %d", *p++); 1078 else 1079 printf(" %02x", *p++); 1080 printf("\n"); 1081 } 1082 } 1083 1084 struct utrace_malloc { 1085 void *p; 1086 size_t s; 1087 void *r; 1088 }; 1089 1090 void 1091 ktruser_malloc(int len, unsigned char *p) 1092 { 1093 struct utrace_malloc *ut = (struct utrace_malloc *)p; 1094 1095 if (ut->p == NULL) { 1096 if (ut->s == 0 && ut->r == NULL) 1097 printf("malloc_init()\n"); 1098 else 1099 printf("%p = malloc(%zu)\n", ut->r, ut->s); 1100 } else { 1101 if (ut->s == 0) 1102 printf("free(%p)\n", ut->p); 1103 else 1104 printf("%p = realloc(%p, %zu)\n", ut->r, ut->p, ut->s); 1105 } 1106 } 1107 1108 void 1109 ktruser(int len, unsigned char *p) 1110 { 1111 1112 if (len >= 8 && bcmp(p, "RTLD", 4) == 0) { 1113 ktruser_rtld(len, p); 1114 return; 1115 } 1116 1117 if (len == sizeof(struct utrace_malloc)) { 1118 ktruser_malloc(len, p); 1119 return; 1120 } 1121 1122 (void)printf("%d ", len); 1123 while (len--) 1124 if (decimal) 1125 (void)printf(" %d", *p++); 1126 else 1127 (void)printf(" %02x", *p++); 1128 (void)printf("\n"); 1129 } 1130 1131 void 1132 usage(void) 1133 { 1134 (void)fprintf(stderr, 1135 "usage: kdump [-dEnlHRsT] [-f trfile] [-m maxdata] [-p pid] [-t [cnisuw]]\n"); 1136 exit(1); 1137 } 1138