kdump.c revision 226153
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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef lint 31static const char copyright[] = 32"@(#) Copyright (c) 1988, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34#endif /* not lint */ 35 36#ifndef lint 37#if 0 38static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93"; 39#endif 40#endif /* not lint */ 41#include <sys/cdefs.h> 42__FBSDID("$FreeBSD: head/usr.bin/kdump/kdump.c 226153 2011-10-08 12:28:06Z des $"); 43 44#define _KERNEL 45extern int errno; 46#include <sys/errno.h> 47#undef _KERNEL 48#include <sys/param.h> 49#include <sys/errno.h> 50#define _KERNEL 51#include <sys/time.h> 52#undef _KERNEL 53#include <sys/uio.h> 54#include <sys/ktrace.h> 55#include <sys/ioctl.h> 56#include <sys/socket.h> 57#include <sys/stat.h> 58#include <sys/sysent.h> 59#include <sys/un.h> 60#include <sys/queue.h> 61#ifdef IPX 62#include <sys/types.h> 63#include <netipx/ipx.h> 64#endif 65#ifdef NETATALK 66#include <netatalk/at.h> 67#endif 68#include <arpa/inet.h> 69#include <netinet/in.h> 70#include <ctype.h> 71#include <dlfcn.h> 72#include <err.h> 73#include <grp.h> 74#include <inttypes.h> 75#include <locale.h> 76#include <pwd.h> 77#include <stdio.h> 78#include <stdlib.h> 79#include <string.h> 80#include <time.h> 81#include <unistd.h> 82#include <vis.h> 83#include "ktrace.h" 84#include "kdump_subr.h" 85 86u_int abidump(struct ktr_header *); 87int fetchprocinfo(struct ktr_header *, u_int *); 88int fread_tail(void *, int, int); 89void dumpheader(struct ktr_header *); 90void ktrsyscall(struct ktr_syscall *, u_int); 91void ktrsysret(struct ktr_sysret *, u_int); 92void ktrnamei(char *, int); 93void hexdump(char *, int, int); 94void visdump(char *, int, int); 95void ktrgenio(struct ktr_genio *, int); 96void ktrpsig(struct ktr_psig *); 97void ktrcsw(struct ktr_csw *); 98void ktruser(int, unsigned char *); 99void ktrsockaddr(struct sockaddr *); 100void ktrstat(struct stat *); 101void ktrstruct(char *, size_t); 102void usage(void); 103const char *ioctlname(u_long); 104 105int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata, 106 resolv = 0, abiflag = 0; 107const char *tracefile = DEF_TRACEFILE; 108struct ktr_header ktr_header; 109 110#define TIME_FORMAT "%b %e %T %Y" 111#define eqs(s1, s2) (strcmp((s1), (s2)) == 0) 112 113#define print_number(i,n,c) \ 114 do { \ 115 if (decimal) \ 116 printf("%c%jd", c, (intmax_t)*i); \ 117 else \ 118 printf("%c%#jx", c, (intmax_t)*i); \ 119 i++; \ 120 n--; \ 121 c = ','; \ 122 } while (0) 123 124#if defined(__amd64__) || defined(__i386__) 125 126void linux_ktrsyscall(struct ktr_syscall *); 127void linux_ktrsysret(struct ktr_sysret *); 128extern char *linux_syscallnames[]; 129extern int nlinux_syscalls; 130 131/* 132 * from linux.h 133 * Linux syscalls return negative errno's, we do positive and map them 134 */ 135static int bsd_to_linux_errno[ELAST + 1] = { 136 -0, -1, -2, -3, -4, -5, -6, -7, -8, -9, 137 -10, -35, -12, -13, -14, -15, -16, -17, -18, -19, 138 -20, -21, -22, -23, -24, -25, -26, -27, -28, -29, 139 -30, -31, -32, -33, -34, -11,-115,-114, -88, -89, 140 -90, -91, -92, -93, -94, -95, -96, -97, -98, -99, 141 -100,-101,-102,-103,-104,-105,-106,-107,-108,-109, 142 -110,-111, -40, -36,-112,-113, -39, -11, -87,-122, 143 -116, -66, -6, -6, -6, -6, -6, -37, -38, -9, 144 -6, -6, -43, -42, -75,-125, -84, -95, -16, -74, 145 -72, -67, -71 146}; 147#endif 148 149struct proc_info 150{ 151 TAILQ_ENTRY(proc_info) info; 152 u_int sv_flags; 153 pid_t pid; 154}; 155 156TAILQ_HEAD(trace_procs, proc_info) trace_procs; 157 158int 159main(int argc, char *argv[]) 160{ 161 int ch, ktrlen, size; 162 void *m; 163 int trpoints = ALL_POINTS; 164 int drop_logged; 165 pid_t pid = 0; 166 u_int sv_flags; 167 168 setlocale(LC_CTYPE, ""); 169 170 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrsTt:")) != -1) 171 switch (ch) { 172 case 'A': 173 abiflag = 1; 174 break; 175 case 'f': 176 tracefile = optarg; 177 break; 178 case 'd': 179 decimal = 1; 180 break; 181 case 'l': 182 tail = 1; 183 break; 184 case 'm': 185 maxdata = atoi(optarg); 186 break; 187 case 'n': 188 fancy = 0; 189 break; 190 case 'p': 191 pid = atoi(optarg); 192 break; 193 case 'r': 194 resolv = 1; 195 break; 196 case 's': 197 suppressdata = 1; 198 break; 199 case 'E': 200 timestamp = 3; /* elapsed timestamp */ 201 break; 202 case 'H': 203 threads = 1; 204 break; 205 case 'R': 206 timestamp = 2; /* relative timestamp */ 207 break; 208 case 'T': 209 timestamp = 1; 210 break; 211 case 't': 212 trpoints = getpoints(optarg); 213 if (trpoints < 0) 214 errx(1, "unknown trace point in %s", optarg); 215 break; 216 default: 217 usage(); 218 } 219 220 if (argc > optind) 221 usage(); 222 223 m = malloc(size = 1025); 224 if (m == NULL) 225 errx(1, "%s", strerror(ENOMEM)); 226 if (!freopen(tracefile, "r", stdin)) 227 err(1, "%s", tracefile); 228 TAILQ_INIT(&trace_procs); 229 drop_logged = 0; 230 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) { 231 if (ktr_header.ktr_type & KTR_DROP) { 232 ktr_header.ktr_type &= ~KTR_DROP; 233 if (!drop_logged && threads) { 234 printf( 235 "%6jd %6jd %-8.*s Events dropped.\n", 236 (intmax_t)ktr_header.ktr_pid, 237 ktr_header.ktr_tid > 0 ? 238 (intmax_t)ktr_header.ktr_tid : 0, 239 MAXCOMLEN, ktr_header.ktr_comm); 240 drop_logged = 1; 241 } else if (!drop_logged) { 242 printf("%6jd %-8.*s Events dropped.\n", 243 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN, 244 ktr_header.ktr_comm); 245 drop_logged = 1; 246 } 247 } 248 if (trpoints & (1<<ktr_header.ktr_type)) 249 if (pid == 0 || ktr_header.ktr_pid == pid) 250 dumpheader(&ktr_header); 251 if ((ktrlen = ktr_header.ktr_len) < 0) 252 errx(1, "bogus length 0x%x", ktrlen); 253 if (ktrlen > size) { 254 m = realloc(m, ktrlen+1); 255 if (m == NULL) 256 errx(1, "%s", strerror(ENOMEM)); 257 size = ktrlen; 258 } 259 if (ktrlen && fread_tail(m, ktrlen, 1) == 0) 260 errx(1, "data too short"); 261 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0) 262 continue; 263 sv_flags = abidump(&ktr_header); 264 if (pid && ktr_header.ktr_pid != pid) 265 continue; 266 if ((trpoints & (1<<ktr_header.ktr_type)) == 0) 267 continue; 268 drop_logged = 0; 269 switch (ktr_header.ktr_type) { 270 case KTR_SYSCALL: 271#if defined(__amd64__) || defined(__i386__) 272 if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX) 273 linux_ktrsyscall((struct ktr_syscall *)m); 274 else 275#endif 276 ktrsyscall((struct ktr_syscall *)m, sv_flags); 277 break; 278 case KTR_SYSRET: 279#if defined(__amd64__) || defined(__i386__) 280 if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX) 281 linux_ktrsysret((struct ktr_sysret *)m); 282 else 283#endif 284 ktrsysret((struct ktr_sysret *)m, sv_flags); 285 break; 286 case KTR_NAMEI: 287 case KTR_SYSCTL: 288 ktrnamei(m, ktrlen); 289 break; 290 case KTR_GENIO: 291 ktrgenio((struct ktr_genio *)m, ktrlen); 292 break; 293 case KTR_PSIG: 294 ktrpsig((struct ktr_psig *)m); 295 break; 296 case KTR_CSW: 297 ktrcsw((struct ktr_csw *)m); 298 break; 299 case KTR_USER: 300 ktruser(ktrlen, m); 301 break; 302 case KTR_STRUCT: 303 ktrstruct(m, ktrlen); 304 break; 305 default: 306 printf("\n"); 307 break; 308 } 309 if (tail) 310 fflush(stdout); 311 } 312 return 0; 313} 314 315int 316fread_tail(void *buf, int size, int num) 317{ 318 int i; 319 320 while ((i = fread(buf, size, num, stdin)) == 0 && tail) { 321 sleep(1); 322 clearerr(stdin); 323 } 324 return (i); 325} 326 327int 328fetchprocinfo(struct ktr_header *kth, u_int *flags) 329{ 330 struct proc_info *pi; 331 332 switch (kth->ktr_type) { 333 case KTR_PROCCTOR: 334 TAILQ_FOREACH(pi, &trace_procs, info) { 335 if (pi->pid == kth->ktr_pid) { 336 TAILQ_REMOVE(&trace_procs, pi, info); 337 break; 338 } 339 } 340 pi = malloc(sizeof(struct proc_info)); 341 if (pi == NULL) 342 errx(1, "%s", strerror(ENOMEM)); 343 pi->sv_flags = *flags; 344 pi->pid = kth->ktr_pid; 345 TAILQ_INSERT_TAIL(&trace_procs, pi, info); 346 return (1); 347 348 case KTR_PROCDTOR: 349 TAILQ_FOREACH(pi, &trace_procs, info) { 350 if (pi->pid == kth->ktr_pid) { 351 TAILQ_REMOVE(&trace_procs, pi, info); 352 free(pi); 353 break; 354 } 355 } 356 return (1); 357 } 358 359 return (0); 360} 361 362u_int 363abidump(struct ktr_header *kth) 364{ 365 struct proc_info *pi; 366 const char *abi; 367 const char *arch; 368 u_int flags = 0; 369 370 TAILQ_FOREACH(pi, &trace_procs, info) { 371 if (pi->pid == kth->ktr_pid) { 372 flags = pi->sv_flags; 373 break; 374 } 375 } 376 377 if (abiflag == 0) 378 return (flags); 379 380 switch (flags & SV_ABI_MASK) { 381 case SV_ABI_LINUX: 382 abi = "L"; 383 break; 384 case SV_ABI_FREEBSD: 385 abi = "F"; 386 break; 387 default: 388 abi = "U"; 389 break; 390 } 391 392 if (flags != 0) { 393 if (flags & SV_LP64) 394 arch = "64"; 395 else 396 arch = "32"; 397 } else 398 arch = "00"; 399 400 printf("%s%s ", abi, arch); 401 402 return (flags); 403} 404 405void 406dumpheader(struct ktr_header *kth) 407{ 408 static char unknown[64]; 409 static struct timeval prevtime, temp; 410 const char *type; 411 412 switch (kth->ktr_type) { 413 case KTR_SYSCALL: 414 type = "CALL"; 415 break; 416 case KTR_SYSRET: 417 type = "RET "; 418 break; 419 case KTR_NAMEI: 420 type = "NAMI"; 421 break; 422 case KTR_GENIO: 423 type = "GIO "; 424 break; 425 case KTR_PSIG: 426 type = "PSIG"; 427 break; 428 case KTR_CSW: 429 type = "CSW "; 430 break; 431 case KTR_USER: 432 type = "USER"; 433 break; 434 case KTR_STRUCT: 435 type = "STRU"; 436 break; 437 case KTR_SYSCTL: 438 type = "SCTL"; 439 break; 440 case KTR_PROCCTOR: 441 /* FALLTHROUGH */ 442 case KTR_PROCDTOR: 443 return; 444 default: 445 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type); 446 type = unknown; 447 } 448 449 /* 450 * The ktr_tid field was previously the ktr_buffer field, which held 451 * the kernel pointer value for the buffer associated with data 452 * following the record header. It now holds a threadid, but only 453 * for trace files after the change. Older trace files still contain 454 * kernel pointers. Detect this and suppress the results by printing 455 * negative tid's as 0. 456 */ 457 if (threads) 458 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid, 459 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0, 460 MAXCOMLEN, kth->ktr_comm); 461 else 462 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN, 463 kth->ktr_comm); 464 if (timestamp) { 465 if (timestamp == 3) { 466 if (prevtime.tv_sec == 0) 467 prevtime = kth->ktr_time; 468 timevalsub(&kth->ktr_time, &prevtime); 469 } 470 if (timestamp == 2) { 471 temp = kth->ktr_time; 472 timevalsub(&kth->ktr_time, &prevtime); 473 prevtime = temp; 474 } 475 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec, 476 kth->ktr_time.tv_usec); 477 } 478 printf("%s ", type); 479} 480 481#include <sys/syscall.h> 482#define KTRACE 483#include <sys/kern/syscalls.c> 484#undef KTRACE 485int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]); 486 487void 488ktrsyscall(struct ktr_syscall *ktr, u_int flags) 489{ 490 int narg = ktr->ktr_narg; 491 register_t *ip; 492 493 if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) || 494 (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0)) 495 printf("[%d]", ktr->ktr_code); 496 else 497 printf("%s", syscallnames[ktr->ktr_code]); 498 ip = &ktr->ktr_args[0]; 499 if (narg) { 500 char c = '('; 501 if (fancy && 502 (flags == 0 || (flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) { 503 switch (ktr->ktr_code) { 504 case SYS_ioctl: { 505 const char *cp; 506 print_number(ip, narg, c); 507 if ((cp = ioctlname(*ip)) != NULL) 508 printf(",%s", cp); 509 else { 510 if (decimal) 511 printf(",%jd", (intmax_t)*ip); 512 else 513 printf(",%#jx ", (intmax_t)*ip); 514 } 515 c = ','; 516 ip++; 517 narg--; 518 break; 519 } 520 case SYS_ptrace: 521 putchar('('); 522 ptraceopname((intmax_t)*ip); 523 c = ','; 524 ip++; 525 narg--; 526 break; 527 case SYS_access: 528 case SYS_eaccess: 529 print_number(ip, narg, c); 530 putchar(','); 531 accessmodename((intmax_t)*ip); 532 ip++; 533 narg--; 534 break; 535 case SYS_open: 536 print_number(ip, narg, c); 537 putchar(','); 538 flagsandmodename((int)ip[0], (int)ip[1], decimal); 539 ip += 2; 540 narg -= 2; 541 break; 542 case SYS_wait4: 543 print_number(ip, narg, c); 544 print_number(ip, narg, c); 545 putchar(','); 546 wait4optname((intmax_t)*ip); 547 ip++; 548 narg--; 549 break; 550 case SYS_chmod: 551 case SYS_fchmod: 552 case SYS_lchmod: 553 print_number(ip, narg, c); 554 putchar(','); 555 modename((intmax_t)*ip); 556 ip++; 557 narg--; 558 break; 559 case SYS_mknod: 560 print_number(ip, narg, c); 561 putchar(','); 562 modename((intmax_t)*ip); 563 ip++; 564 narg--; 565 break; 566 case SYS_getfsstat: 567 print_number(ip, narg, c); 568 print_number(ip, narg, c); 569 putchar(','); 570 getfsstatflagsname((intmax_t)*ip); 571 ip++; 572 narg--; 573 break; 574 case SYS_mount: 575 print_number(ip, narg, c); 576 print_number(ip, narg, c); 577 putchar(','); 578 mountflagsname((intmax_t)*ip); 579 ip++; 580 narg--; 581 break; 582 case SYS_unmount: 583 print_number(ip, narg, c); 584 putchar(','); 585 mountflagsname((intmax_t)*ip); 586 ip++; 587 narg--; 588 break; 589 case SYS_recvmsg: 590 case SYS_sendmsg: 591 print_number(ip, narg, c); 592 print_number(ip, narg, c); 593 putchar(','); 594 sendrecvflagsname((int)*ip); 595 ip++; 596 narg--; 597 break; 598 case SYS_recvfrom: 599 case SYS_sendto: 600 print_number(ip, narg, c); 601 print_number(ip, narg, c); 602 print_number(ip, narg, c); 603 putchar(','); 604 sendrecvflagsname((int)*ip); 605 ip++; 606 narg--; 607 break; 608 case SYS_chflags: 609 case SYS_fchflags: 610 case SYS_lchflags: 611 print_number(ip, narg, c); 612 putchar(','); 613 modename((intmax_t)*ip); 614 ip++; 615 narg--; 616 break; 617 case SYS_kill: 618 print_number(ip, narg, c); 619 putchar(','); 620 signame((int)*ip); 621 ip++; 622 narg--; 623 break; 624 case SYS_reboot: 625 putchar('('); 626 rebootoptname((intmax_t)*ip); 627 ip++; 628 narg--; 629 break; 630 case SYS_umask: 631 putchar('('); 632 modename((intmax_t)*ip); 633 ip++; 634 narg--; 635 break; 636 case SYS_msync: 637 print_number(ip, narg, c); 638 print_number(ip, narg, c); 639 putchar(','); 640 msyncflagsname((intmax_t)*ip); 641 ip++; 642 narg--; 643 break; 644#ifdef SYS_freebsd6_mmap 645 case SYS_freebsd6_mmap: 646 print_number(ip, narg, c); 647 print_number(ip, narg, c); 648 putchar(','); 649 mmapprotname((intmax_t)*ip); 650 putchar(','); 651 ip++; 652 narg--; 653 mmapflagsname((intmax_t)*ip); 654 ip++; 655 narg--; 656 break; 657#endif 658 case SYS_mmap: 659 print_number(ip, narg, c); 660 print_number(ip, narg, c); 661 putchar(','); 662 mmapprotname((intmax_t)*ip); 663 putchar(','); 664 ip++; 665 narg--; 666 mmapflagsname((intmax_t)*ip); 667 ip++; 668 narg--; 669 break; 670 case SYS_mprotect: 671 print_number(ip, narg, c); 672 print_number(ip, narg, c); 673 putchar(','); 674 mmapprotname((intmax_t)*ip); 675 ip++; 676 narg--; 677 break; 678 case SYS_madvise: 679 print_number(ip, narg, c); 680 print_number(ip, narg, c); 681 putchar(','); 682 madvisebehavname((intmax_t)*ip); 683 ip++; 684 narg--; 685 break; 686 case SYS_setpriority: 687 print_number(ip, narg, c); 688 print_number(ip, narg, c); 689 putchar(','); 690 prioname((intmax_t)*ip); 691 ip++; 692 narg--; 693 break; 694 case SYS_fcntl: 695 print_number(ip, narg, c); 696 putchar(','); 697 fcntlcmdname((int)ip[0], (int)ip[1], decimal); 698 ip += 2; 699 narg -= 2; 700 break; 701 case SYS_socket: { 702 int sockdomain; 703 putchar('('); 704 sockdomain=(intmax_t)*ip; 705 sockdomainname(sockdomain); 706 ip++; 707 narg--; 708 putchar(','); 709 socktypename((intmax_t)*ip); 710 ip++; 711 narg--; 712 if (sockdomain == PF_INET || 713 sockdomain == PF_INET6) { 714 putchar(','); 715 sockipprotoname((intmax_t)*ip); 716 ip++; 717 narg--; 718 } 719 c = ','; 720 break; 721 } 722 case SYS_setsockopt: 723 case SYS_getsockopt: 724 print_number(ip, narg, c); 725 putchar(','); 726 sockoptlevelname((int)*ip, decimal); 727 if (*ip == SOL_SOCKET) { 728 ip++; 729 narg--; 730 putchar(','); 731 sockoptname((intmax_t)*ip); 732 } 733 ip++; 734 narg--; 735 break; 736#ifdef SYS_freebsd6_lseek 737 case SYS_freebsd6_lseek: 738 print_number(ip, narg, c); 739 /* Hidden 'pad' argument, not in lseek(2) */ 740 print_number(ip, narg, c); 741 print_number(ip, narg, c); 742 putchar(','); 743 whencename((intmax_t)*ip); 744 ip++; 745 narg--; 746 break; 747#endif 748 case SYS_lseek: 749 print_number(ip, narg, c); 750 /* Hidden 'pad' argument, not in lseek(2) */ 751 print_number(ip, narg, c); 752 putchar(','); 753 whencename((intmax_t)*ip); 754 ip++; 755 narg--; 756 break; 757 case SYS_flock: 758 print_number(ip, narg, c); 759 putchar(','); 760 flockname((intmax_t)*ip); 761 ip++; 762 narg--; 763 break; 764 case SYS_mkfifo: 765 case SYS_mkdir: 766 print_number(ip, narg, c); 767 putchar(','); 768 modename((intmax_t)*ip); 769 ip++; 770 narg--; 771 break; 772 case SYS_shutdown: 773 print_number(ip, narg, c); 774 putchar(','); 775 shutdownhowname((intmax_t)*ip); 776 ip++; 777 narg--; 778 break; 779 case SYS_socketpair: 780 putchar('('); 781 sockdomainname((intmax_t)*ip); 782 ip++; 783 narg--; 784 putchar(','); 785 socktypename((intmax_t)*ip); 786 ip++; 787 narg--; 788 c = ','; 789 break; 790 case SYS_getrlimit: 791 case SYS_setrlimit: 792 putchar('('); 793 rlimitname((intmax_t)*ip); 794 ip++; 795 narg--; 796 c = ','; 797 break; 798 case SYS_quotactl: 799 print_number(ip, narg, c); 800 putchar(','); 801 quotactlname((intmax_t)*ip); 802 ip++; 803 narg--; 804 c = ','; 805 break; 806 case SYS_nfssvc: 807 putchar('('); 808 nfssvcname((intmax_t)*ip); 809 ip++; 810 narg--; 811 c = ','; 812 break; 813 case SYS_rtprio: 814 putchar('('); 815 rtprioname((int)*ip); 816 ip++; 817 narg--; 818 c = ','; 819 break; 820 case SYS___semctl: 821 print_number(ip, narg, c); 822 print_number(ip, narg, c); 823 putchar(','); 824 semctlname((int)*ip); 825 ip++; 826 narg--; 827 break; 828 case SYS_semget: 829 print_number(ip, narg, c); 830 print_number(ip, narg, c); 831 putchar(','); 832 semgetname((int)*ip); 833 ip++; 834 narg--; 835 break; 836 case SYS_msgctl: 837 print_number(ip, narg, c); 838 putchar(','); 839 shmctlname((int)*ip); 840 ip++; 841 narg--; 842 break; 843 case SYS_shmat: 844 print_number(ip, narg, c); 845 print_number(ip, narg, c); 846 putchar(','); 847 shmatname((intmax_t)*ip); 848 ip++; 849 narg--; 850 break; 851 case SYS_shmctl: 852 print_number(ip, narg, c); 853 putchar(','); 854 shmctlname((int)*ip); 855 ip++; 856 narg--; 857 break; 858 case SYS_minherit: 859 print_number(ip, narg, c); 860 print_number(ip, narg, c); 861 putchar(','); 862 minheritname((intmax_t)*ip); 863 ip++; 864 narg--; 865 break; 866 case SYS_rfork: 867 putchar('('); 868 rforkname((intmax_t)*ip); 869 ip++; 870 narg--; 871 c = ','; 872 break; 873 case SYS_lio_listio: 874 putchar('('); 875 lio_listioname((intmax_t)*ip); 876 ip++; 877 narg--; 878 c = ','; 879 break; 880 case SYS_mlockall: 881 putchar('('); 882 mlockallname((intmax_t)*ip); 883 ip++; 884 narg--; 885 break; 886 case SYS_sched_setscheduler: 887 print_number(ip, narg, c); 888 putchar(','); 889 schedpolicyname((intmax_t)*ip); 890 ip++; 891 narg--; 892 break; 893 case SYS_sched_get_priority_max: 894 case SYS_sched_get_priority_min: 895 putchar('('); 896 schedpolicyname((intmax_t)*ip); 897 ip++; 898 narg--; 899 break; 900 case SYS_sendfile: 901 print_number(ip, narg, c); 902 print_number(ip, narg, c); 903 print_number(ip, narg, c); 904 print_number(ip, narg, c); 905 print_number(ip, narg, c); 906 print_number(ip, narg, c); 907 putchar(','); 908 sendfileflagsname((intmax_t)*ip); 909 ip++; 910 narg--; 911 break; 912 case SYS_kldsym: 913 print_number(ip, narg, c); 914 putchar(','); 915 kldsymcmdname((intmax_t)*ip); 916 ip++; 917 narg--; 918 break; 919 case SYS_sigprocmask: 920 putchar('('); 921 sigprocmaskhowname((intmax_t)*ip); 922 ip++; 923 narg--; 924 c = ','; 925 break; 926 case SYS___acl_get_file: 927 case SYS___acl_set_file: 928 case SYS___acl_get_fd: 929 case SYS___acl_set_fd: 930 case SYS___acl_delete_file: 931 case SYS___acl_delete_fd: 932 case SYS___acl_aclcheck_file: 933 case SYS___acl_aclcheck_fd: 934 case SYS___acl_get_link: 935 case SYS___acl_set_link: 936 case SYS___acl_delete_link: 937 case SYS___acl_aclcheck_link: 938 print_number(ip, narg, c); 939 putchar(','); 940 acltypename((intmax_t)*ip); 941 ip++; 942 narg--; 943 break; 944 case SYS_sigaction: 945 putchar('('); 946 signame((int)*ip); 947 ip++; 948 narg--; 949 c = ','; 950 break; 951 case SYS_extattrctl: 952 print_number(ip, narg, c); 953 putchar(','); 954 extattrctlname((intmax_t)*ip); 955 ip++; 956 narg--; 957 break; 958 case SYS_nmount: 959 print_number(ip, narg, c); 960 print_number(ip, narg, c); 961 putchar(','); 962 mountflagsname((intmax_t)*ip); 963 ip++; 964 narg--; 965 break; 966 case SYS_thr_create: 967 print_number(ip, narg, c); 968 print_number(ip, narg, c); 969 putchar(','); 970 thrcreateflagsname((intmax_t)*ip); 971 ip++; 972 narg--; 973 break; 974 case SYS_thr_kill: 975 print_number(ip, narg, c); 976 putchar(','); 977 signame((int)*ip); 978 ip++; 979 narg--; 980 break; 981 case SYS_kldunloadf: 982 print_number(ip, narg, c); 983 putchar(','); 984 kldunloadfflagsname((intmax_t)*ip); 985 ip++; 986 narg--; 987 break; 988 } 989 } 990 while (narg > 0) { 991 print_number(ip, narg, c); 992 } 993 putchar(')'); 994 } 995 putchar('\n'); 996} 997 998void 999ktrsysret(struct ktr_sysret *ktr, u_int flags) 1000{ 1001 register_t ret = ktr->ktr_retval; 1002 int error = ktr->ktr_error; 1003 int code = ktr->ktr_code; 1004 1005 if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) || 1006 (code >= nsyscalls || code < 0)) 1007 printf("[%d] ", code); 1008 else 1009 printf("%s ", syscallnames[code]); 1010 1011 if (error == 0) { 1012 if (fancy) { 1013 printf("%ld", (long)ret); 1014 if (ret < 0 || ret > 9) 1015 printf("/%#lx", (unsigned long)ret); 1016 } else { 1017 if (decimal) 1018 printf("%ld", (long)ret); 1019 else 1020 printf("%#lx", (unsigned long)ret); 1021 } 1022 } else if (error == ERESTART) 1023 printf("RESTART"); 1024 else if (error == EJUSTRETURN) 1025 printf("JUSTRETURN"); 1026 else { 1027 printf("-1 errno %d", ktr->ktr_error); 1028 if (fancy) 1029 printf(" %s", strerror(ktr->ktr_error)); 1030 } 1031 putchar('\n'); 1032} 1033 1034void 1035ktrnamei(char *cp, int len) 1036{ 1037 printf("\"%.*s\"\n", len, cp); 1038} 1039 1040void 1041hexdump(char *p, int len, int screenwidth) 1042{ 1043 int n, i; 1044 int width; 1045 1046 width = 0; 1047 do { 1048 width += 2; 1049 i = 13; /* base offset */ 1050 i += (width / 2) + 1; /* spaces every second byte */ 1051 i += (width * 2); /* width of bytes */ 1052 i += 3; /* " |" */ 1053 i += width; /* each byte */ 1054 i += 1; /* "|" */ 1055 } while (i < screenwidth); 1056 width -= 2; 1057 1058 for (n = 0; n < len; n += width) { 1059 for (i = n; i < n + width; i++) { 1060 if ((i % width) == 0) { /* beginning of line */ 1061 printf(" 0x%04x", i); 1062 } 1063 if ((i % 2) == 0) { 1064 printf(" "); 1065 } 1066 if (i < len) 1067 printf("%02x", p[i] & 0xff); 1068 else 1069 printf(" "); 1070 } 1071 printf(" |"); 1072 for (i = n; i < n + width; i++) { 1073 if (i >= len) 1074 break; 1075 if (p[i] >= ' ' && p[i] <= '~') 1076 printf("%c", p[i]); 1077 else 1078 printf("."); 1079 } 1080 printf("|\n"); 1081 } 1082 if ((i % width) != 0) 1083 printf("\n"); 1084} 1085 1086void 1087visdump(char *dp, int datalen, int screenwidth) 1088{ 1089 int col = 0; 1090 char *cp; 1091 int width; 1092 char visbuf[5]; 1093 1094 printf(" \""); 1095 col = 8; 1096 for (;datalen > 0; datalen--, dp++) { 1097 vis(visbuf, *dp, VIS_CSTYLE, *(dp+1)); 1098 cp = visbuf; 1099 /* 1100 * Keep track of printables and 1101 * space chars (like fold(1)). 1102 */ 1103 if (col == 0) { 1104 putchar('\t'); 1105 col = 8; 1106 } 1107 switch(*cp) { 1108 case '\n': 1109 col = 0; 1110 putchar('\n'); 1111 continue; 1112 case '\t': 1113 width = 8 - (col&07); 1114 break; 1115 default: 1116 width = strlen(cp); 1117 } 1118 if (col + width > (screenwidth-2)) { 1119 printf("\\\n\t"); 1120 col = 8; 1121 } 1122 col += width; 1123 do { 1124 putchar(*cp++); 1125 } while (*cp); 1126 } 1127 if (col == 0) 1128 printf(" "); 1129 printf("\"\n"); 1130} 1131 1132void 1133ktrgenio(struct ktr_genio *ktr, int len) 1134{ 1135 int datalen = len - sizeof (struct ktr_genio); 1136 char *dp = (char *)ktr + sizeof (struct ktr_genio); 1137 static int screenwidth = 0; 1138 int i, binary; 1139 1140 if (screenwidth == 0) { 1141 struct winsize ws; 1142 1143 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 && 1144 ws.ws_col > 8) 1145 screenwidth = ws.ws_col; 1146 else 1147 screenwidth = 80; 1148 } 1149 printf("fd %d %s %d byte%s\n", ktr->ktr_fd, 1150 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen, 1151 datalen == 1 ? "" : "s"); 1152 if (suppressdata) 1153 return; 1154 if (maxdata && datalen > maxdata) 1155 datalen = maxdata; 1156 1157 for (i = 0, binary = 0; i < datalen && binary == 0; i++) { 1158 if (dp[i] >= 32 && dp[i] < 127) 1159 continue; 1160 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9) 1161 continue; 1162 binary = 1; 1163 } 1164 if (binary) 1165 hexdump(dp, datalen, screenwidth); 1166 else 1167 visdump(dp, datalen, screenwidth); 1168} 1169 1170const char *signames[] = { 1171 "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */ 1172 "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */ 1173 "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */ 1174 "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */ 1175 "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */ 1176 "USR2", NULL, /* 31 - 32 */ 1177}; 1178 1179void 1180ktrpsig(struct ktr_psig *psig) 1181{ 1182 if (psig->signo > 0 && psig->signo < NSIG) 1183 printf("SIG%s ", signames[psig->signo]); 1184 else 1185 printf("SIG %d ", psig->signo); 1186 if (psig->action == SIG_DFL) 1187 printf("SIG_DFL code=0x%x\n", psig->code); 1188 else { 1189 printf("caught handler=0x%lx mask=0x%x code=0x%x\n", 1190 (u_long)psig->action, psig->mask.__bits[0], psig->code); 1191 } 1192} 1193 1194void 1195ktrcsw(struct ktr_csw *cs) 1196{ 1197 printf("%s %s\n", cs->out ? "stop" : "resume", 1198 cs->user ? "user" : "kernel"); 1199} 1200 1201#define UTRACE_DLOPEN_START 1 1202#define UTRACE_DLOPEN_STOP 2 1203#define UTRACE_DLCLOSE_START 3 1204#define UTRACE_DLCLOSE_STOP 4 1205#define UTRACE_LOAD_OBJECT 5 1206#define UTRACE_UNLOAD_OBJECT 6 1207#define UTRACE_ADD_RUNDEP 7 1208#define UTRACE_PRELOAD_FINISHED 8 1209#define UTRACE_INIT_CALL 9 1210#define UTRACE_FINI_CALL 10 1211 1212struct utrace_rtld { 1213 char sig[4]; /* 'RTLD' */ 1214 int event; 1215 void *handle; 1216 void *mapbase; 1217 size_t mapsize; 1218 int refcnt; 1219 char name[MAXPATHLEN]; 1220}; 1221 1222void 1223ktruser_rtld(int len, unsigned char *p) 1224{ 1225 struct utrace_rtld *ut = (struct utrace_rtld *)p; 1226 void *parent; 1227 int mode; 1228 1229 switch (ut->event) { 1230 case UTRACE_DLOPEN_START: 1231 mode = ut->refcnt; 1232 printf("dlopen(%s, ", ut->name); 1233 switch (mode & RTLD_MODEMASK) { 1234 case RTLD_NOW: 1235 printf("RTLD_NOW"); 1236 break; 1237 case RTLD_LAZY: 1238 printf("RTLD_LAZY"); 1239 break; 1240 default: 1241 printf("%#x", mode & RTLD_MODEMASK); 1242 } 1243 if (mode & RTLD_GLOBAL) 1244 printf(" | RTLD_GLOBAL"); 1245 if (mode & RTLD_TRACE) 1246 printf(" | RTLD_TRACE"); 1247 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE)) 1248 printf(" | %#x", mode & 1249 ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE)); 1250 printf(")\n"); 1251 break; 1252 case UTRACE_DLOPEN_STOP: 1253 printf("%p = dlopen(%s) ref %d\n", ut->handle, ut->name, 1254 ut->refcnt); 1255 break; 1256 case UTRACE_DLCLOSE_START: 1257 printf("dlclose(%p) (%s, %d)\n", ut->handle, ut->name, 1258 ut->refcnt); 1259 break; 1260 case UTRACE_DLCLOSE_STOP: 1261 printf("dlclose(%p) finished\n", ut->handle); 1262 break; 1263 case UTRACE_LOAD_OBJECT: 1264 printf("RTLD: loaded %p @ %p - %p (%s)\n", ut->handle, 1265 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1, 1266 ut->name); 1267 break; 1268 case UTRACE_UNLOAD_OBJECT: 1269 printf("RTLD: unloaded %p @ %p - %p (%s)\n", ut->handle, 1270 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1, 1271 ut->name); 1272 break; 1273 case UTRACE_ADD_RUNDEP: 1274 parent = ut->mapbase; 1275 printf("RTLD: %p now depends on %p (%s, %d)\n", parent, 1276 ut->handle, ut->name, ut->refcnt); 1277 break; 1278 case UTRACE_PRELOAD_FINISHED: 1279 printf("RTLD: LD_PRELOAD finished\n"); 1280 break; 1281 case UTRACE_INIT_CALL: 1282 printf("RTLD: init %p for %p (%s)\n", ut->mapbase, ut->handle, 1283 ut->name); 1284 break; 1285 case UTRACE_FINI_CALL: 1286 printf("RTLD: fini %p for %p (%s)\n", ut->mapbase, ut->handle, 1287 ut->name); 1288 break; 1289 default: 1290 p += 4; 1291 len -= 4; 1292 printf("RTLD: %d ", len); 1293 while (len--) 1294 if (decimal) 1295 printf(" %d", *p++); 1296 else 1297 printf(" %02x", *p++); 1298 printf("\n"); 1299 } 1300} 1301 1302struct utrace_malloc { 1303 void *p; 1304 size_t s; 1305 void *r; 1306}; 1307 1308void 1309ktruser_malloc(int len, unsigned char *p) 1310{ 1311 struct utrace_malloc *ut = (struct utrace_malloc *)p; 1312 1313 if (ut->p == (void *)(intptr_t)(-1)) 1314 printf("malloc_init()\n"); 1315 else if (ut->s == 0) 1316 printf("free(%p)\n", ut->p); 1317 else if (ut->p == NULL) 1318 printf("%p = malloc(%zu)\n", ut->r, ut->s); 1319 else 1320 printf("%p = realloc(%p, %zu)\n", ut->r, ut->p, ut->s); 1321} 1322 1323void 1324ktruser(int len, unsigned char *p) 1325{ 1326 1327 if (len >= 8 && bcmp(p, "RTLD", 4) == 0) { 1328 ktruser_rtld(len, p); 1329 return; 1330 } 1331 1332 if (len == sizeof(struct utrace_malloc)) { 1333 ktruser_malloc(len, p); 1334 return; 1335 } 1336 1337 printf("%d ", len); 1338 while (len--) 1339 if (decimal) 1340 printf(" %d", *p++); 1341 else 1342 printf(" %02x", *p++); 1343 printf("\n"); 1344} 1345 1346void 1347ktrsockaddr(struct sockaddr *sa) 1348{ 1349/* 1350 TODO: Support additional address families 1351 #include <netnatm/natm.h> 1352 struct sockaddr_natm *natm; 1353 #include <netsmb/netbios.h> 1354 struct sockaddr_nb *nb; 1355*/ 1356 char addr[64]; 1357 1358 /* 1359 * note: ktrstruct() has already verified that sa points to a 1360 * buffer at least sizeof(struct sockaddr) bytes long and exactly 1361 * sa->sa_len bytes long. 1362 */ 1363 printf("struct sockaddr { "); 1364 sockfamilyname(sa->sa_family); 1365 printf(", "); 1366 1367#define check_sockaddr_len(n) \ 1368 if (sa_##n->s##n##_len < sizeof(struct sockaddr_##n)) { \ 1369 printf("invalid"); \ 1370 break; \ 1371 } 1372 1373 switch(sa->sa_family) { 1374 case AF_INET: { 1375 struct sockaddr_in *sa_in; 1376 1377 sa_in = (struct sockaddr_in *)sa; 1378 check_sockaddr_len(in); 1379 inet_ntop(AF_INET, &sa_in->sin_addr, addr, sizeof addr); 1380 printf("%s:%u", addr, ntohs(sa_in->sin_port)); 1381 break; 1382 } 1383#ifdef NETATALK 1384 case AF_APPLETALK: { 1385 struct sockaddr_at *sa_at; 1386 struct netrange *nr; 1387 1388 sa_at = (struct sockaddr_at *)sa; 1389 check_sockaddr_len(at); 1390 nr = &sa_at->sat_range.r_netrange; 1391 printf("%d.%d, %d-%d, %d", ntohs(sa_at->sat_addr.s_net), 1392 sa_at->sat_addr.s_node, ntohs(nr->nr_firstnet), 1393 ntohs(nr->nr_lastnet), nr->nr_phase); 1394 break; 1395 } 1396#endif 1397 case AF_INET6: { 1398 struct sockaddr_in6 *sa_in6; 1399 1400 sa_in6 = (struct sockaddr_in6 *)sa; 1401 check_sockaddr_len(in6); 1402 inet_ntop(AF_INET6, &sa_in6->sin6_addr, addr, sizeof addr); 1403 printf("[%s]:%u", addr, htons(sa_in6->sin6_port)); 1404 break; 1405 } 1406#ifdef IPX 1407 case AF_IPX: { 1408 struct sockaddr_ipx *sa_ipx; 1409 1410 sa_ipx = (struct sockaddr_ipx *)sa; 1411 check_sockaddr_len(ipx); 1412 /* XXX wish we had ipx_ntop */ 1413 printf("%s", ipx_ntoa(sa_ipx->sipx_addr)); 1414 break; 1415 } 1416#endif 1417 case AF_UNIX: { 1418 struct sockaddr_un *sa_un; 1419 1420 sa_un = (struct sockaddr_un *)sa; 1421 check_sockaddr_len(un); 1422 printf("%.*s", (int)sizeof(sa_un->sun_path), sa_un->sun_path); 1423 break; 1424 } 1425 default: 1426 printf("unknown address family"); 1427 } 1428 printf(" }\n"); 1429} 1430 1431void 1432ktrstat(struct stat *statp) 1433{ 1434 char mode[12], timestr[PATH_MAX + 4]; 1435 struct passwd *pwd; 1436 struct group *grp; 1437 struct tm *tm; 1438 1439 /* 1440 * note: ktrstruct() has already verified that statp points to a 1441 * buffer exactly sizeof(struct stat) bytes long. 1442 */ 1443 printf("struct stat {"); 1444 strmode(statp->st_mode, mode); 1445 printf("dev=%ju, ino=%ju, mode=%s, nlink=%ju, ", 1446 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino, mode, 1447 (uintmax_t)statp->st_nlink); 1448 if (resolv == 0 || (pwd = getpwuid(statp->st_uid)) == NULL) 1449 printf("uid=%ju, ", (uintmax_t)statp->st_uid); 1450 else 1451 printf("uid=\"%s\", ", pwd->pw_name); 1452 if (resolv == 0 || (grp = getgrgid(statp->st_gid)) == NULL) 1453 printf("gid=%ju, ", (uintmax_t)statp->st_gid); 1454 else 1455 printf("gid=\"%s\", ", grp->gr_name); 1456 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev); 1457 printf("atime="); 1458 if (resolv == 0) 1459 printf("%jd", (intmax_t)statp->st_atim.tv_sec); 1460 else { 1461 tm = localtime(&statp->st_atim.tv_sec); 1462 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1463 printf("\"%s\"", timestr); 1464 } 1465 if (statp->st_atim.tv_nsec != 0) 1466 printf(".%09ld, ", statp->st_atim.tv_nsec); 1467 else 1468 printf(", "); 1469 printf("stime="); 1470 if (resolv == 0) 1471 printf("%jd", (intmax_t)statp->st_mtim.tv_sec); 1472 else { 1473 tm = localtime(&statp->st_mtim.tv_sec); 1474 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1475 printf("\"%s\"", timestr); 1476 } 1477 if (statp->st_mtim.tv_nsec != 0) 1478 printf(".%09ld, ", statp->st_mtim.tv_nsec); 1479 else 1480 printf(", "); 1481 printf("ctime="); 1482 if (resolv == 0) 1483 printf("%jd", (intmax_t)statp->st_ctim.tv_sec); 1484 else { 1485 tm = localtime(&statp->st_ctim.tv_sec); 1486 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1487 printf("\"%s\"", timestr); 1488 } 1489 if (statp->st_ctim.tv_nsec != 0) 1490 printf(".%09ld, ", statp->st_ctim.tv_nsec); 1491 else 1492 printf(", "); 1493 printf("birthtime="); 1494 if (resolv == 0) 1495 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec); 1496 else { 1497 tm = localtime(&statp->st_birthtim.tv_sec); 1498 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1499 printf("\"%s\"", timestr); 1500 } 1501 if (statp->st_birthtim.tv_nsec != 0) 1502 printf(".%09ld, ", statp->st_birthtim.tv_nsec); 1503 else 1504 printf(", "); 1505 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x", 1506 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize, 1507 (intmax_t)statp->st_blocks, statp->st_flags); 1508 printf(" }\n"); 1509} 1510 1511void 1512ktrstruct(char *buf, size_t buflen) 1513{ 1514 char *name, *data; 1515 size_t namelen, datalen; 1516 int i; 1517 struct stat sb; 1518 struct sockaddr_storage ss; 1519 1520 for (name = buf, namelen = 0; 1521 namelen < buflen && name[namelen] != '\0'; 1522 ++namelen) 1523 /* nothing */; 1524 if (namelen == buflen) 1525 goto invalid; 1526 if (name[namelen] != '\0') 1527 goto invalid; 1528 data = buf + namelen + 1; 1529 datalen = buflen - namelen - 1; 1530 if (datalen == 0) 1531 goto invalid; 1532 /* sanity check */ 1533 for (i = 0; i < namelen; ++i) 1534 if (!isalpha((unsigned char)name[i])) 1535 goto invalid; 1536 if (strcmp(name, "stat") == 0) { 1537 if (datalen != sizeof(struct stat)) 1538 goto invalid; 1539 memcpy(&sb, data, datalen); 1540 ktrstat(&sb); 1541 } else if (strcmp(name, "sockaddr") == 0) { 1542 if (datalen > sizeof(ss)) 1543 goto invalid; 1544 memcpy(&ss, data, datalen); 1545 if (datalen < sizeof(struct sockaddr) || 1546 datalen != ss.ss_len) 1547 goto invalid; 1548 ktrsockaddr((struct sockaddr *)&ss); 1549 } else { 1550 printf("unknown structure\n"); 1551 } 1552 return; 1553invalid: 1554 printf("invalid record\n"); 1555} 1556 1557#if defined(__amd64__) || defined(__i386__) 1558void 1559linux_ktrsyscall(struct ktr_syscall *ktr) 1560{ 1561 int narg = ktr->ktr_narg; 1562 register_t *ip; 1563 1564 if (ktr->ktr_code >= nlinux_syscalls || ktr->ktr_code < 0) 1565 printf("[%d]", ktr->ktr_code); 1566 else 1567 printf("%s", linux_syscallnames[ktr->ktr_code]); 1568 ip = &ktr->ktr_args[0]; 1569 if (narg) { 1570 char c = '('; 1571 while (narg > 0) 1572 print_number(ip, narg, c); 1573 putchar(')'); 1574 } 1575 putchar('\n'); 1576} 1577 1578void 1579linux_ktrsysret(struct ktr_sysret *ktr) 1580{ 1581 register_t ret = ktr->ktr_retval; 1582 int error = ktr->ktr_error; 1583 int code = ktr->ktr_code; 1584 1585 if (code >= nlinux_syscalls || code < 0) 1586 printf("[%d] ", code); 1587 else 1588 printf("%s ", linux_syscallnames[code]); 1589 1590 if (error == 0) { 1591 if (fancy) { 1592 printf("%ld", (long)ret); 1593 if (ret < 0 || ret > 9) 1594 printf("/%#lx", (unsigned long)ret); 1595 } else { 1596 if (decimal) 1597 printf("%ld", (long)ret); 1598 else 1599 printf("%#lx", (unsigned long)ret); 1600 } 1601 } else if (error == ERESTART) 1602 printf("RESTART"); 1603 else if (error == EJUSTRETURN) 1604 printf("JUSTRETURN"); 1605 else { 1606 if (ktr->ktr_error <= ELAST + 1) 1607 error = abs(bsd_to_linux_errno[ktr->ktr_error]); 1608 else 1609 error = 999; 1610 printf("-1 errno %d", error); 1611 if (fancy) 1612 printf(" %s", strerror(ktr->ktr_error)); 1613 } 1614 putchar('\n'); 1615} 1616#endif 1617 1618void 1619usage(void) 1620{ 1621 fprintf(stderr, "usage: kdump [-dEnlHRrsTA] [-f trfile] " 1622 "[-m maxdata] [-p pid] [-t trstr]\n"); 1623 exit(1); 1624} 1625