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 #ifndef lint 33 static const char copyright[] = 34 "@(#) Copyright (c) 1988, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"; 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93"; 41 #endif 42 #endif /* not lint */ 43 #include <sys/cdefs.h> 44 __FBSDID("$FreeBSD$"); 45 46 #define _WANT_KERNEL_ERRNO 47 #ifdef __LP64__ 48 #define _WANT_KEVENT32 49 #endif 50 #define _WANT_FREEBSD11_KEVENT 51 #define _WANT_FREEBSD_BITSET 52 #include <sys/param.h> 53 #include <sys/capsicum.h> 54 #include <sys/_bitset.h> 55 #include <sys/bitset.h> 56 #include <sys/errno.h> 57 #include <sys/time.h> 58 #include <sys/uio.h> 59 #include <sys/event.h> 60 #include <sys/ktrace.h> 61 #include <sys/mman.h> 62 #include <sys/ioctl.h> 63 #include <sys/socket.h> 64 #include <sys/stat.h> 65 #include <sys/sysent.h> 66 #include <sys/umtx.h> 67 #include <sys/un.h> 68 #include <sys/queue.h> 69 #include <sys/wait.h> 70 #ifdef WITH_CASPER 71 #include <sys/nv.h> 72 #endif 73 #include <arpa/inet.h> 74 #include <netinet/in.h> 75 #include <ctype.h> 76 #include <capsicum_helpers.h> 77 #include <err.h> 78 #include <grp.h> 79 #include <inttypes.h> 80 #include <locale.h> 81 #include <netdb.h> 82 #include <nl_types.h> 83 #include <pwd.h> 84 #include <stddef.h> 85 #include <stdio.h> 86 #include <stdlib.h> 87 #include <string.h> 88 #include <sysdecode.h> 89 #include <time.h> 90 #include <unistd.h> 91 #include <vis.h> 92 #include "ktrace.h" 93 94 #ifdef WITH_CASPER 95 #include <libcasper.h> 96 97 #include <casper/cap_grp.h> 98 #include <casper/cap_pwd.h> 99 #endif 100 101 int fetchprocinfo(struct ktr_header *, u_int *); 102 u_int findabi(struct ktr_header *); 103 int fread_tail(void *, int, int); 104 void dumpheader(struct ktr_header *, u_int); 105 void ktrsyscall(struct ktr_syscall *, u_int); 106 void ktrsysret(struct ktr_sysret *, u_int); 107 void ktrnamei(char *, int); 108 void hexdump(char *, int, int); 109 void visdump(char *, int, int); 110 void ktrgenio(struct ktr_genio *, int); 111 void ktrpsig(struct ktr_psig *); 112 void ktrcsw(struct ktr_csw *); 113 void ktrcsw_old(struct ktr_csw_old *); 114 void ktruser(int, void *); 115 void ktrcaprights(cap_rights_t *); 116 void ktritimerval(struct itimerval *it); 117 void ktrsockaddr(struct sockaddr *); 118 void ktrstat(struct stat *); 119 void ktrstruct(char *, size_t); 120 void ktrcapfail(struct ktr_cap_fail *); 121 void ktrfault(struct ktr_fault *); 122 void ktrfaultend(struct ktr_faultend *); 123 void ktrkevent(struct kevent *); 124 void ktrstructarray(struct ktr_struct_array *, size_t); 125 void ktrbitset(char *, struct bitset *, size_t); 126 void usage(void); 127 128 #define TIMESTAMP_NONE 0x0 129 #define TIMESTAMP_ABSOLUTE 0x1 130 #define TIMESTAMP_ELAPSED 0x2 131 #define TIMESTAMP_RELATIVE 0x4 132 133 static bool abiflag, decimal, fancy = true, resolv, suppressdata, syscallno, 134 tail, threads; 135 static int timestamp, maxdata; 136 static const char *tracefile = DEF_TRACEFILE; 137 static struct ktr_header ktr_header; 138 139 #define TIME_FORMAT "%b %e %T %Y" 140 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0) 141 142 #define print_number64(first,i,n,c) do { \ 143 uint64_t __v; \ 144 \ 145 if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \ 146 (i)++; \ 147 (n)--; \ 148 } \ 149 if (quad_slots == 2) \ 150 __v = (uint64_t)(uint32_t)(i)[0] | \ 151 ((uint64_t)(uint32_t)(i)[1]) << 32; \ 152 else \ 153 __v = (uint64_t)*(i); \ 154 if (decimal) \ 155 printf("%c%jd", (c), (intmax_t)__v); \ 156 else \ 157 printf("%c%#jx", (c), (uintmax_t)__v); \ 158 (i) += quad_slots; \ 159 (n) -= quad_slots; \ 160 (c) = ','; \ 161 } while (0) 162 163 #define print_number(i,n,c) do { \ 164 if (decimal) \ 165 printf("%c%jd", c, (intmax_t)*i); \ 166 else \ 167 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \ 168 i++; \ 169 n--; \ 170 c = ','; \ 171 } while (0) 172 173 struct proc_info 174 { 175 TAILQ_ENTRY(proc_info) info; 176 u_int sv_flags; 177 pid_t pid; 178 }; 179 180 static TAILQ_HEAD(trace_procs, proc_info) trace_procs; 181 182 #ifdef WITH_CASPER 183 static cap_channel_t *cappwd, *capgrp; 184 185 static int 186 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp) 187 { 188 cap_channel_t *capcas, *cappwdloc, *capgrploc; 189 const char *cmds[1], *fields[1]; 190 191 capcas = cap_init(); 192 if (capcas == NULL) { 193 err(1, "unable to create casper process"); 194 exit(1); 195 } 196 cappwdloc = cap_service_open(capcas, "system.pwd"); 197 capgrploc = cap_service_open(capcas, "system.grp"); 198 /* Casper capability no longer needed. */ 199 cap_close(capcas); 200 if (cappwdloc == NULL || capgrploc == NULL) { 201 if (cappwdloc == NULL) 202 warn("unable to open system.pwd service"); 203 if (capgrploc == NULL) 204 warn("unable to open system.grp service"); 205 exit(1); 206 } 207 /* Limit system.pwd to only getpwuid() function and pw_name field. */ 208 cmds[0] = "getpwuid"; 209 if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0) 210 err(1, "unable to limit system.pwd service"); 211 fields[0] = "pw_name"; 212 if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0) 213 err(1, "unable to limit system.pwd service"); 214 /* Limit system.grp to only getgrgid() function and gr_name field. */ 215 cmds[0] = "getgrgid"; 216 if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0) 217 err(1, "unable to limit system.grp service"); 218 fields[0] = "gr_name"; 219 if (cap_grp_limit_fields(capgrploc, fields, 1) < 0) 220 err(1, "unable to limit system.grp service"); 221 222 *cappwdp = cappwdloc; 223 *capgrpp = capgrploc; 224 return (0); 225 } 226 #endif /* WITH_CASPER */ 227 228 static void 229 print_integer_arg(const char *(*decoder)(int), int value) 230 { 231 const char *str; 232 233 str = decoder(value); 234 if (str != NULL) 235 printf("%s", str); 236 else { 237 if (decimal) 238 printf("<invalid=%d>", value); 239 else 240 printf("<invalid=%#x>", value); 241 } 242 } 243 244 /* Like print_integer_arg but unknown values are treated as valid. */ 245 static void 246 print_integer_arg_valid(const char *(*decoder)(int), int value) 247 { 248 const char *str; 249 250 str = decoder(value); 251 if (str != NULL) 252 printf("%s", str); 253 else { 254 if (decimal) 255 printf("%d", value); 256 else 257 printf("%#x", value); 258 } 259 } 260 261 static bool 262 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), int value, int *rem) 263 { 264 265 printf("%#x<", value); 266 return (decoder(stdout, value, rem)); 267 } 268 269 static void 270 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value) 271 { 272 bool invalid; 273 int rem; 274 275 invalid = !print_mask_arg_part(decoder, value, &rem); 276 printf(">"); 277 if (invalid) 278 printf("<invalid>%u", rem); 279 } 280 281 static void 282 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value) 283 { 284 bool invalid; 285 int rem; 286 287 if (value == 0) { 288 printf("0"); 289 return; 290 } 291 printf("%#x<", value); 292 invalid = !decoder(stdout, value, &rem); 293 printf(">"); 294 if (invalid) 295 printf("<invalid>%u", rem); 296 } 297 298 static void 299 decode_fileflags(fflags_t value) 300 { 301 bool invalid; 302 fflags_t rem; 303 304 if (value == 0) { 305 printf("0"); 306 return; 307 } 308 printf("%#x<", value); 309 invalid = !sysdecode_fileflags(stdout, value, &rem); 310 printf(">"); 311 if (invalid) 312 printf("<invalid>%u", rem); 313 } 314 315 static void 316 decode_filemode(int value) 317 { 318 bool invalid; 319 int rem; 320 321 if (value == 0) { 322 printf("0"); 323 return; 324 } 325 printf("%#o<", value); 326 invalid = !sysdecode_filemode(stdout, value, &rem); 327 printf(">"); 328 if (invalid) 329 printf("<invalid>%u", rem); 330 } 331 332 static void 333 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value) 334 { 335 bool invalid; 336 uint32_t rem; 337 338 printf("%#x<", value); 339 invalid = !decoder(stdout, value, &rem); 340 printf(">"); 341 if (invalid) 342 printf("<invalid>%u", rem); 343 } 344 345 static void 346 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value) 347 { 348 bool invalid; 349 u_long rem; 350 351 if (value == 0) { 352 printf("0"); 353 return; 354 } 355 printf("%#lx<", value); 356 invalid = !decoder(stdout, value, &rem); 357 printf(">"); 358 if (invalid) 359 printf("<invalid>%lu", rem); 360 } 361 362 int 363 main(int argc, char *argv[]) 364 { 365 int ch, ktrlen, size; 366 void *m; 367 int trpoints = ALL_POINTS; 368 int drop_logged; 369 pid_t pid = 0; 370 u_int sv_flags; 371 372 setlocale(LC_CTYPE, ""); 373 374 timestamp = TIMESTAMP_NONE; 375 376 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1) 377 switch (ch) { 378 case 'A': 379 abiflag = true; 380 break; 381 case 'f': 382 tracefile = optarg; 383 break; 384 case 'd': 385 decimal = true; 386 break; 387 case 'l': 388 tail = true; 389 break; 390 case 'm': 391 maxdata = atoi(optarg); 392 break; 393 case 'n': 394 fancy = false; 395 break; 396 case 'p': 397 pid = atoi(optarg); 398 break; 399 case 'r': 400 resolv = true; 401 break; 402 case 'S': 403 syscallno = true; 404 break; 405 case 's': 406 suppressdata = true; 407 break; 408 case 'E': 409 timestamp |= TIMESTAMP_ELAPSED; 410 break; 411 case 'H': 412 threads = true; 413 break; 414 case 'R': 415 timestamp |= TIMESTAMP_RELATIVE; 416 break; 417 case 'T': 418 timestamp |= TIMESTAMP_ABSOLUTE; 419 break; 420 case 't': 421 trpoints = getpoints(optarg); 422 if (trpoints < 0) 423 errx(1, "unknown trace point in %s", optarg); 424 break; 425 default: 426 usage(); 427 } 428 429 if (argc > optind) 430 usage(); 431 432 m = malloc(size = 1025); 433 if (m == NULL) 434 errx(1, "%s", strerror(ENOMEM)); 435 if (strcmp(tracefile, "-") != 0) 436 if (!freopen(tracefile, "r", stdin)) 437 err(1, "%s", tracefile); 438 439 caph_cache_catpages(); 440 caph_cache_tzdata(); 441 442 #ifdef WITH_CASPER 443 if (resolv) { 444 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) { 445 cappwd = NULL; 446 capgrp = NULL; 447 } 448 } 449 if (!resolv || (cappwd != NULL && capgrp != NULL)) { 450 if (caph_enter() < 0) 451 err(1, "unable to enter capability mode"); 452 } 453 #else 454 if (!resolv) { 455 if (caph_enter() < 0) 456 err(1, "unable to enter capability mode"); 457 } 458 #endif 459 if (caph_limit_stdio() == -1) 460 err(1, "unable to limit stdio"); 461 462 TAILQ_INIT(&trace_procs); 463 drop_logged = 0; 464 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) { 465 if (ktr_header.ktr_type & KTR_DROP) { 466 ktr_header.ktr_type &= ~KTR_DROP; 467 if (!drop_logged && threads) { 468 printf( 469 "%6jd %6jd %-8.*s Events dropped.\n", 470 (intmax_t)ktr_header.ktr_pid, 471 ktr_header.ktr_tid > 0 ? 472 (intmax_t)ktr_header.ktr_tid : 0, 473 MAXCOMLEN, ktr_header.ktr_comm); 474 drop_logged = 1; 475 } else if (!drop_logged) { 476 printf("%6jd %-8.*s Events dropped.\n", 477 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN, 478 ktr_header.ktr_comm); 479 drop_logged = 1; 480 } 481 } 482 if ((ktrlen = ktr_header.ktr_len) < 0) 483 errx(1, "bogus length 0x%x", ktrlen); 484 if (ktrlen > size) { 485 m = realloc(m, ktrlen+1); 486 if (m == NULL) 487 errx(1, "%s", strerror(ENOMEM)); 488 size = ktrlen; 489 } 490 if (ktrlen && fread_tail(m, ktrlen, 1) == 0) 491 errx(1, "data too short"); 492 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0) 493 continue; 494 if (pid && ktr_header.ktr_pid != pid && 495 ktr_header.ktr_tid != pid) 496 continue; 497 if ((trpoints & (1<<ktr_header.ktr_type)) == 0) 498 continue; 499 sv_flags = findabi(&ktr_header); 500 dumpheader(&ktr_header, sv_flags); 501 drop_logged = 0; 502 switch (ktr_header.ktr_type) { 503 case KTR_SYSCALL: 504 ktrsyscall((struct ktr_syscall *)m, sv_flags); 505 break; 506 case KTR_SYSRET: 507 ktrsysret((struct ktr_sysret *)m, sv_flags); 508 break; 509 case KTR_NAMEI: 510 case KTR_SYSCTL: 511 ktrnamei(m, ktrlen); 512 break; 513 case KTR_GENIO: 514 ktrgenio((struct ktr_genio *)m, ktrlen); 515 break; 516 case KTR_PSIG: 517 ktrpsig((struct ktr_psig *)m); 518 break; 519 case KTR_CSW: 520 if (ktrlen == sizeof(struct ktr_csw_old)) 521 ktrcsw_old((struct ktr_csw_old *)m); 522 else 523 ktrcsw((struct ktr_csw *)m); 524 break; 525 case KTR_USER: 526 ktruser(ktrlen, m); 527 break; 528 case KTR_STRUCT: 529 ktrstruct(m, ktrlen); 530 break; 531 case KTR_CAPFAIL: 532 ktrcapfail((struct ktr_cap_fail *)m); 533 break; 534 case KTR_FAULT: 535 ktrfault((struct ktr_fault *)m); 536 break; 537 case KTR_FAULTEND: 538 ktrfaultend((struct ktr_faultend *)m); 539 break; 540 case KTR_STRUCT_ARRAY: 541 ktrstructarray((struct ktr_struct_array *)m, ktrlen); 542 break; 543 default: 544 printf("\n"); 545 break; 546 } 547 if (tail) 548 fflush(stdout); 549 } 550 return 0; 551 } 552 553 int 554 fread_tail(void *buf, int size, int num) 555 { 556 int i; 557 558 while ((i = fread(buf, size, num, stdin)) == 0 && tail) { 559 sleep(1); 560 clearerr(stdin); 561 } 562 return (i); 563 } 564 565 int 566 fetchprocinfo(struct ktr_header *kth, u_int *flags) 567 { 568 struct proc_info *pi; 569 570 switch (kth->ktr_type) { 571 case KTR_PROCCTOR: 572 TAILQ_FOREACH(pi, &trace_procs, info) { 573 if (pi->pid == kth->ktr_pid) { 574 TAILQ_REMOVE(&trace_procs, pi, info); 575 break; 576 } 577 } 578 pi = malloc(sizeof(struct proc_info)); 579 if (pi == NULL) 580 errx(1, "%s", strerror(ENOMEM)); 581 pi->sv_flags = *flags; 582 pi->pid = kth->ktr_pid; 583 TAILQ_INSERT_TAIL(&trace_procs, pi, info); 584 return (1); 585 586 case KTR_PROCDTOR: 587 TAILQ_FOREACH(pi, &trace_procs, info) { 588 if (pi->pid == kth->ktr_pid) { 589 TAILQ_REMOVE(&trace_procs, pi, info); 590 free(pi); 591 break; 592 } 593 } 594 return (1); 595 } 596 597 return (0); 598 } 599 600 u_int 601 findabi(struct ktr_header *kth) 602 { 603 struct proc_info *pi; 604 605 TAILQ_FOREACH(pi, &trace_procs, info) { 606 if (pi->pid == kth->ktr_pid) { 607 return (pi->sv_flags); 608 } 609 } 610 return (0); 611 } 612 613 void 614 dumpheader(struct ktr_header *kth, u_int sv_flags) 615 { 616 static char unknown[64]; 617 static struct timeval prevtime, prevtime_e; 618 struct timeval temp; 619 const char *abi; 620 const char *arch; 621 const char *type; 622 const char *sign; 623 624 switch (kth->ktr_type) { 625 case KTR_SYSCALL: 626 type = "CALL"; 627 break; 628 case KTR_SYSRET: 629 type = "RET "; 630 break; 631 case KTR_NAMEI: 632 type = "NAMI"; 633 break; 634 case KTR_GENIO: 635 type = "GIO "; 636 break; 637 case KTR_PSIG: 638 type = "PSIG"; 639 break; 640 case KTR_CSW: 641 type = "CSW "; 642 break; 643 case KTR_USER: 644 type = "USER"; 645 break; 646 case KTR_STRUCT: 647 case KTR_STRUCT_ARRAY: 648 type = "STRU"; 649 break; 650 case KTR_SYSCTL: 651 type = "SCTL"; 652 break; 653 case KTR_CAPFAIL: 654 type = "CAP "; 655 break; 656 case KTR_FAULT: 657 type = "PFLT"; 658 break; 659 case KTR_FAULTEND: 660 type = "PRET"; 661 break; 662 default: 663 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type); 664 type = unknown; 665 } 666 667 /* 668 * The ktr_tid field was previously the ktr_buffer field, which held 669 * the kernel pointer value for the buffer associated with data 670 * following the record header. It now holds a threadid, but only 671 * for trace files after the change. Older trace files still contain 672 * kernel pointers. Detect this and suppress the results by printing 673 * negative tid's as 0. 674 */ 675 if (threads) 676 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid, 677 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0, 678 MAXCOMLEN, kth->ktr_comm); 679 else 680 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN, 681 kth->ktr_comm); 682 if (timestamp) { 683 if (timestamp & TIMESTAMP_ABSOLUTE) { 684 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec, 685 kth->ktr_time.tv_usec); 686 } 687 if (timestamp & TIMESTAMP_ELAPSED) { 688 if (prevtime_e.tv_sec == 0) 689 prevtime_e = kth->ktr_time; 690 timersub(&kth->ktr_time, &prevtime_e, &temp); 691 printf("%jd.%06ld ", (intmax_t)temp.tv_sec, 692 temp.tv_usec); 693 } 694 if (timestamp & TIMESTAMP_RELATIVE) { 695 if (prevtime.tv_sec == 0) 696 prevtime = kth->ktr_time; 697 if (timercmp(&kth->ktr_time, &prevtime, <)) { 698 timersub(&prevtime, &kth->ktr_time, &temp); 699 sign = "-"; 700 } else { 701 timersub(&kth->ktr_time, &prevtime, &temp); 702 sign = ""; 703 } 704 prevtime = kth->ktr_time; 705 printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec, 706 temp.tv_usec); 707 } 708 } 709 printf("%s ", type); 710 if (abiflag != 0) { 711 switch (sv_flags & SV_ABI_MASK) { 712 case SV_ABI_LINUX: 713 abi = "L"; 714 break; 715 case SV_ABI_FREEBSD: 716 abi = "F"; 717 break; 718 default: 719 abi = "U"; 720 break; 721 } 722 723 if ((sv_flags & SV_LP64) != 0) 724 arch = "64"; 725 else if ((sv_flags & SV_ILP32) != 0) 726 arch = "32"; 727 else 728 arch = "00"; 729 730 printf("%s%s ", abi, arch); 731 } 732 } 733 734 #include <sys/syscall.h> 735 736 static void 737 ioctlname(unsigned long val) 738 { 739 const char *str; 740 741 str = sysdecode_ioctlname(val); 742 if (str != NULL) 743 printf("%s", str); 744 else if (decimal) 745 printf("%lu", val); 746 else 747 printf("%#lx", val); 748 } 749 750 static enum sysdecode_abi 751 syscallabi(u_int sv_flags) 752 { 753 754 if (sv_flags == 0) 755 return (SYSDECODE_ABI_FREEBSD); 756 switch (sv_flags & SV_ABI_MASK) { 757 case SV_ABI_FREEBSD: 758 return (SYSDECODE_ABI_FREEBSD); 759 case SV_ABI_LINUX: 760 #ifdef __LP64__ 761 if (sv_flags & SV_ILP32) 762 return (SYSDECODE_ABI_LINUX32); 763 #endif 764 return (SYSDECODE_ABI_LINUX); 765 default: 766 return (SYSDECODE_ABI_UNKNOWN); 767 } 768 } 769 770 static void 771 syscallname(u_int code, u_int sv_flags) 772 { 773 const char *name; 774 775 name = sysdecode_syscallname(syscallabi(sv_flags), code); 776 if (name == NULL) 777 printf("[%d]", code); 778 else { 779 printf("%s", name); 780 if (syscallno) 781 printf("[%d]", code); 782 } 783 } 784 785 static void 786 print_signal(int signo) 787 { 788 const char *signame; 789 790 signame = sysdecode_signal(signo); 791 if (signame != NULL) 792 printf("%s", signame); 793 else 794 printf("SIG %d", signo); 795 } 796 797 void 798 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags) 799 { 800 int narg = ktr->ktr_narg; 801 register_t *ip, *first; 802 intmax_t arg; 803 int quad_align, quad_slots; 804 805 syscallname(ktr->ktr_code, sv_flags); 806 ip = first = &ktr->ktr_args[0]; 807 if (narg) { 808 char c = '('; 809 if (fancy && 810 (sv_flags == 0 || 811 (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) { 812 quad_align = 0; 813 if (sv_flags & SV_ILP32) { 814 #ifdef __powerpc__ 815 quad_align = 1; 816 #endif 817 quad_slots = 2; 818 } else 819 quad_slots = 1; 820 switch (ktr->ktr_code) { 821 case SYS_bindat: 822 case SYS_chflagsat: 823 case SYS_connectat: 824 case SYS_faccessat: 825 case SYS_fchmodat: 826 case SYS_fchownat: 827 case SYS_fstatat: 828 case SYS_futimesat: 829 case SYS_linkat: 830 case SYS_mkdirat: 831 case SYS_mkfifoat: 832 case SYS_mknodat: 833 case SYS_openat: 834 case SYS_readlinkat: 835 case SYS_renameat: 836 case SYS_unlinkat: 837 case SYS_utimensat: 838 putchar('('); 839 print_integer_arg_valid(sysdecode_atfd, *ip); 840 c = ','; 841 ip++; 842 narg--; 843 break; 844 } 845 switch (ktr->ktr_code) { 846 case SYS_ioctl: { 847 print_number(ip, narg, c); 848 putchar(c); 849 ioctlname(*ip); 850 c = ','; 851 ip++; 852 narg--; 853 break; 854 } 855 case SYS_ptrace: 856 putchar('('); 857 print_integer_arg(sysdecode_ptrace_request, *ip); 858 c = ','; 859 ip++; 860 narg--; 861 break; 862 case SYS_access: 863 case SYS_eaccess: 864 case SYS_faccessat: 865 print_number(ip, narg, c); 866 putchar(','); 867 print_mask_arg(sysdecode_access_mode, *ip); 868 ip++; 869 narg--; 870 break; 871 case SYS_close_range: 872 print_number(ip, narg, c); 873 print_number(ip, narg, c); 874 putchar(','); 875 print_mask_arg(sysdecode_close_range_flags, *ip); 876 ip += 3; 877 narg -= 3; 878 break; 879 case SYS_open: 880 case SYS_openat: 881 print_number(ip, narg, c); 882 putchar(','); 883 print_mask_arg(sysdecode_open_flags, ip[0]); 884 if ((ip[0] & O_CREAT) == O_CREAT) { 885 putchar(','); 886 decode_filemode(ip[1]); 887 } 888 ip += 2; 889 narg -= 2; 890 break; 891 case SYS_wait4: 892 print_number(ip, narg, c); 893 print_number(ip, narg, c); 894 putchar(','); 895 print_mask_arg0(sysdecode_wait4_options, *ip); 896 ip++; 897 narg--; 898 break; 899 case SYS_wait6: 900 putchar('('); 901 print_integer_arg(sysdecode_idtype, *ip); 902 c = ','; 903 ip++; 904 narg--; 905 print_number64(first, ip, narg, c); 906 print_number(ip, narg, c); 907 putchar(','); 908 print_mask_arg(sysdecode_wait6_options, *ip); 909 ip++; 910 narg--; 911 break; 912 case SYS_chmod: 913 case SYS_fchmod: 914 case SYS_lchmod: 915 case SYS_fchmodat: 916 print_number(ip, narg, c); 917 putchar(','); 918 decode_filemode(*ip); 919 ip++; 920 narg--; 921 break; 922 case SYS_mknodat: 923 print_number(ip, narg, c); 924 putchar(','); 925 decode_filemode(*ip); 926 ip++; 927 narg--; 928 break; 929 case SYS_getfsstat: 930 print_number(ip, narg, c); 931 print_number(ip, narg, c); 932 putchar(','); 933 print_integer_arg(sysdecode_getfsstat_mode, *ip); 934 ip++; 935 narg--; 936 break; 937 case SYS_mount: 938 print_number(ip, narg, c); 939 print_number(ip, narg, c); 940 putchar(','); 941 print_mask_arg(sysdecode_mount_flags, *ip); 942 ip++; 943 narg--; 944 break; 945 case SYS_unmount: 946 print_number(ip, narg, c); 947 putchar(','); 948 print_mask_arg(sysdecode_mount_flags, *ip); 949 ip++; 950 narg--; 951 break; 952 case SYS_recvmsg: 953 case SYS_sendmsg: 954 print_number(ip, narg, c); 955 print_number(ip, narg, c); 956 putchar(','); 957 print_mask_arg0(sysdecode_msg_flags, *ip); 958 ip++; 959 narg--; 960 break; 961 case SYS_recvfrom: 962 case SYS_sendto: 963 print_number(ip, narg, c); 964 print_number(ip, narg, c); 965 print_number(ip, narg, c); 966 putchar(','); 967 print_mask_arg0(sysdecode_msg_flags, *ip); 968 ip++; 969 narg--; 970 break; 971 case SYS_chflags: 972 case SYS_chflagsat: 973 case SYS_fchflags: 974 case SYS_lchflags: 975 print_number(ip, narg, c); 976 putchar(','); 977 decode_fileflags(*ip); 978 ip++; 979 narg--; 980 break; 981 case SYS_kill: 982 print_number(ip, narg, c); 983 putchar(','); 984 print_signal(*ip); 985 ip++; 986 narg--; 987 break; 988 case SYS_reboot: 989 putchar('('); 990 print_mask_arg(sysdecode_reboot_howto, *ip); 991 ip++; 992 narg--; 993 break; 994 case SYS_umask: 995 putchar('('); 996 decode_filemode(*ip); 997 ip++; 998 narg--; 999 break; 1000 case SYS_msync: 1001 print_number(ip, narg, c); 1002 print_number(ip, narg, c); 1003 putchar(','); 1004 print_mask_arg(sysdecode_msync_flags, *ip); 1005 ip++; 1006 narg--; 1007 break; 1008 #ifdef SYS_freebsd6_mmap 1009 case SYS_freebsd6_mmap: 1010 print_number(ip, narg, c); 1011 print_number(ip, narg, c); 1012 putchar(','); 1013 print_mask_arg(sysdecode_mmap_prot, *ip); 1014 putchar(','); 1015 ip++; 1016 narg--; 1017 print_mask_arg(sysdecode_mmap_flags, *ip); 1018 ip++; 1019 narg--; 1020 break; 1021 #endif 1022 case SYS_mmap: 1023 print_number(ip, narg, c); 1024 print_number(ip, narg, c); 1025 putchar(','); 1026 print_mask_arg(sysdecode_mmap_prot, *ip); 1027 putchar(','); 1028 ip++; 1029 narg--; 1030 print_mask_arg(sysdecode_mmap_flags, *ip); 1031 ip++; 1032 narg--; 1033 break; 1034 case SYS_mprotect: 1035 print_number(ip, narg, c); 1036 print_number(ip, narg, c); 1037 putchar(','); 1038 print_mask_arg(sysdecode_mmap_prot, *ip); 1039 ip++; 1040 narg--; 1041 break; 1042 case SYS_madvise: 1043 print_number(ip, narg, c); 1044 print_number(ip, narg, c); 1045 putchar(','); 1046 print_integer_arg(sysdecode_madvice, *ip); 1047 ip++; 1048 narg--; 1049 break; 1050 case SYS_pathconf: 1051 case SYS_lpathconf: 1052 case SYS_fpathconf: 1053 print_number(ip, narg, c); 1054 putchar(','); 1055 print_integer_arg(sysdecode_pathconf_name, *ip); 1056 ip++; 1057 narg--; 1058 break; 1059 case SYS_getpriority: 1060 case SYS_setpriority: 1061 putchar('('); 1062 print_integer_arg(sysdecode_prio_which, *ip); 1063 c = ','; 1064 ip++; 1065 narg--; 1066 break; 1067 case SYS_fcntl: 1068 print_number(ip, narg, c); 1069 putchar(','); 1070 print_integer_arg(sysdecode_fcntl_cmd, ip[0]); 1071 if (sysdecode_fcntl_arg_p(ip[0])) { 1072 putchar(','); 1073 if (ip[0] == F_SETFL) 1074 print_mask_arg( 1075 sysdecode_fcntl_fileflags, 1076 ip[1]); 1077 else 1078 sysdecode_fcntl_arg(stdout, 1079 ip[0], ip[1], 1080 decimal ? 10 : 16); 1081 } 1082 ip += 2; 1083 narg -= 2; 1084 break; 1085 case SYS_socket: { 1086 int sockdomain; 1087 putchar('('); 1088 sockdomain = *ip; 1089 print_integer_arg(sysdecode_socketdomain, 1090 sockdomain); 1091 ip++; 1092 narg--; 1093 putchar(','); 1094 print_mask_arg(sysdecode_socket_type, *ip); 1095 ip++; 1096 narg--; 1097 if (sockdomain == PF_INET || 1098 sockdomain == PF_INET6) { 1099 putchar(','); 1100 print_integer_arg(sysdecode_ipproto, 1101 *ip); 1102 ip++; 1103 narg--; 1104 } 1105 c = ','; 1106 break; 1107 } 1108 case SYS_setsockopt: 1109 case SYS_getsockopt: { 1110 const char *str; 1111 1112 print_number(ip, narg, c); 1113 putchar(','); 1114 print_integer_arg_valid(sysdecode_sockopt_level, 1115 *ip); 1116 str = sysdecode_sockopt_name(ip[0], ip[1]); 1117 if (str != NULL) { 1118 printf(",%s", str); 1119 ip++; 1120 narg--; 1121 } 1122 ip++; 1123 narg--; 1124 break; 1125 } 1126 #ifdef SYS_freebsd6_lseek 1127 case SYS_freebsd6_lseek: 1128 print_number(ip, narg, c); 1129 /* Hidden 'pad' argument, not in lseek(2) */ 1130 print_number(ip, narg, c); 1131 print_number64(first, ip, narg, c); 1132 putchar(','); 1133 print_integer_arg(sysdecode_whence, *ip); 1134 ip++; 1135 narg--; 1136 break; 1137 #endif 1138 case SYS_lseek: 1139 print_number(ip, narg, c); 1140 print_number64(first, ip, narg, c); 1141 putchar(','); 1142 print_integer_arg(sysdecode_whence, *ip); 1143 ip++; 1144 narg--; 1145 break; 1146 case SYS_flock: 1147 print_number(ip, narg, c); 1148 putchar(','); 1149 print_mask_arg(sysdecode_flock_operation, *ip); 1150 ip++; 1151 narg--; 1152 break; 1153 case SYS_mkfifo: 1154 case SYS_mkfifoat: 1155 case SYS_mkdir: 1156 case SYS_mkdirat: 1157 print_number(ip, narg, c); 1158 putchar(','); 1159 decode_filemode(*ip); 1160 ip++; 1161 narg--; 1162 break; 1163 case SYS_shutdown: 1164 print_number(ip, narg, c); 1165 putchar(','); 1166 print_integer_arg(sysdecode_shutdown_how, *ip); 1167 ip++; 1168 narg--; 1169 break; 1170 case SYS_socketpair: 1171 putchar('('); 1172 print_integer_arg(sysdecode_socketdomain, *ip); 1173 ip++; 1174 narg--; 1175 putchar(','); 1176 print_mask_arg(sysdecode_socket_type, *ip); 1177 ip++; 1178 narg--; 1179 c = ','; 1180 break; 1181 case SYS_getrlimit: 1182 case SYS_setrlimit: 1183 putchar('('); 1184 print_integer_arg(sysdecode_rlimit, *ip); 1185 ip++; 1186 narg--; 1187 c = ','; 1188 break; 1189 case SYS_getrusage: 1190 putchar('('); 1191 print_integer_arg(sysdecode_getrusage_who, *ip); 1192 ip++; 1193 narg--; 1194 c = ','; 1195 break; 1196 case SYS_quotactl: 1197 print_number(ip, narg, c); 1198 putchar(','); 1199 if (!sysdecode_quotactl_cmd(stdout, *ip)) { 1200 if (decimal) 1201 printf("<invalid=%d>", (int)*ip); 1202 else 1203 printf("<invalid=%#x>", 1204 (int)*ip); 1205 } 1206 ip++; 1207 narg--; 1208 c = ','; 1209 break; 1210 case SYS_nfssvc: 1211 putchar('('); 1212 print_integer_arg(sysdecode_nfssvc_flags, *ip); 1213 ip++; 1214 narg--; 1215 c = ','; 1216 break; 1217 case SYS_rtprio: 1218 case SYS_rtprio_thread: 1219 putchar('('); 1220 print_integer_arg(sysdecode_rtprio_function, 1221 *ip); 1222 ip++; 1223 narg--; 1224 c = ','; 1225 break; 1226 case SYS___semctl: 1227 print_number(ip, narg, c); 1228 print_number(ip, narg, c); 1229 putchar(','); 1230 print_integer_arg(sysdecode_semctl_cmd, *ip); 1231 ip++; 1232 narg--; 1233 break; 1234 case SYS_semget: 1235 print_number(ip, narg, c); 1236 print_number(ip, narg, c); 1237 putchar(','); 1238 print_mask_arg(sysdecode_semget_flags, *ip); 1239 ip++; 1240 narg--; 1241 break; 1242 case SYS_msgctl: 1243 print_number(ip, narg, c); 1244 putchar(','); 1245 print_integer_arg(sysdecode_msgctl_cmd, *ip); 1246 ip++; 1247 narg--; 1248 break; 1249 case SYS_shmat: 1250 print_number(ip, narg, c); 1251 print_number(ip, narg, c); 1252 putchar(','); 1253 print_mask_arg(sysdecode_shmat_flags, *ip); 1254 ip++; 1255 narg--; 1256 break; 1257 case SYS_shmctl: 1258 print_number(ip, narg, c); 1259 putchar(','); 1260 print_integer_arg(sysdecode_shmctl_cmd, *ip); 1261 ip++; 1262 narg--; 1263 break; 1264 #ifdef SYS_freebsd12_shm_open 1265 case SYS_freebsd12_shm_open: 1266 if (ip[0] == (uintptr_t)SHM_ANON) { 1267 printf("(SHM_ANON"); 1268 ip++; 1269 } else { 1270 print_number(ip, narg, c); 1271 } 1272 putchar(','); 1273 print_mask_arg(sysdecode_open_flags, ip[0]); 1274 putchar(','); 1275 decode_filemode(ip[1]); 1276 ip += 2; 1277 narg -= 2; 1278 break; 1279 #endif 1280 case SYS_shm_open2: 1281 if (ip[0] == (uintptr_t)SHM_ANON) { 1282 printf("(SHM_ANON"); 1283 ip++; 1284 } else { 1285 print_number(ip, narg, c); 1286 } 1287 putchar(','); 1288 print_mask_arg(sysdecode_open_flags, ip[0]); 1289 putchar(','); 1290 decode_filemode(ip[1]); 1291 putchar(','); 1292 print_mask_arg(sysdecode_shmflags, ip[2]); 1293 ip += 3; 1294 narg -= 3; 1295 break; 1296 case SYS_minherit: 1297 print_number(ip, narg, c); 1298 print_number(ip, narg, c); 1299 putchar(','); 1300 print_integer_arg(sysdecode_minherit_inherit, 1301 *ip); 1302 ip++; 1303 narg--; 1304 break; 1305 case SYS_rfork: 1306 putchar('('); 1307 print_mask_arg(sysdecode_rfork_flags, *ip); 1308 ip++; 1309 narg--; 1310 c = ','; 1311 break; 1312 case SYS_lio_listio: 1313 putchar('('); 1314 print_integer_arg(sysdecode_lio_listio_mode, 1315 *ip); 1316 ip++; 1317 narg--; 1318 c = ','; 1319 break; 1320 case SYS_mlockall: 1321 putchar('('); 1322 print_mask_arg(sysdecode_mlockall_flags, *ip); 1323 ip++; 1324 narg--; 1325 break; 1326 case SYS_sched_setscheduler: 1327 print_number(ip, narg, c); 1328 putchar(','); 1329 print_integer_arg(sysdecode_scheduler_policy, 1330 *ip); 1331 ip++; 1332 narg--; 1333 break; 1334 case SYS_sched_get_priority_max: 1335 case SYS_sched_get_priority_min: 1336 putchar('('); 1337 print_integer_arg(sysdecode_scheduler_policy, 1338 *ip); 1339 ip++; 1340 narg--; 1341 break; 1342 case SYS_sendfile: 1343 print_number(ip, narg, c); 1344 print_number(ip, narg, c); 1345 print_number(ip, narg, c); 1346 print_number(ip, narg, c); 1347 print_number(ip, narg, c); 1348 print_number(ip, narg, c); 1349 putchar(','); 1350 print_mask_arg(sysdecode_sendfile_flags, *ip); 1351 ip++; 1352 narg--; 1353 break; 1354 case SYS_kldsym: 1355 print_number(ip, narg, c); 1356 putchar(','); 1357 print_integer_arg(sysdecode_kldsym_cmd, *ip); 1358 ip++; 1359 narg--; 1360 break; 1361 case SYS_sigprocmask: 1362 putchar('('); 1363 print_integer_arg(sysdecode_sigprocmask_how, 1364 *ip); 1365 ip++; 1366 narg--; 1367 c = ','; 1368 break; 1369 case SYS___acl_get_file: 1370 case SYS___acl_set_file: 1371 case SYS___acl_get_fd: 1372 case SYS___acl_set_fd: 1373 case SYS___acl_delete_file: 1374 case SYS___acl_delete_fd: 1375 case SYS___acl_aclcheck_file: 1376 case SYS___acl_aclcheck_fd: 1377 case SYS___acl_get_link: 1378 case SYS___acl_set_link: 1379 case SYS___acl_delete_link: 1380 case SYS___acl_aclcheck_link: 1381 print_number(ip, narg, c); 1382 putchar(','); 1383 print_integer_arg(sysdecode_acltype, *ip); 1384 ip++; 1385 narg--; 1386 break; 1387 case SYS_sigaction: 1388 putchar('('); 1389 print_signal(*ip); 1390 ip++; 1391 narg--; 1392 c = ','; 1393 break; 1394 case SYS_extattrctl: 1395 print_number(ip, narg, c); 1396 putchar(','); 1397 print_integer_arg(sysdecode_extattrnamespace, 1398 *ip); 1399 ip++; 1400 narg--; 1401 break; 1402 case SYS_nmount: 1403 print_number(ip, narg, c); 1404 print_number(ip, narg, c); 1405 putchar(','); 1406 print_mask_arg(sysdecode_mount_flags, *ip); 1407 ip++; 1408 narg--; 1409 break; 1410 case SYS_thr_create: 1411 print_number(ip, narg, c); 1412 print_number(ip, narg, c); 1413 putchar(','); 1414 print_mask_arg(sysdecode_thr_create_flags, *ip); 1415 ip++; 1416 narg--; 1417 break; 1418 case SYS_thr_kill: 1419 print_number(ip, narg, c); 1420 putchar(','); 1421 print_signal(*ip); 1422 ip++; 1423 narg--; 1424 break; 1425 case SYS_kldunloadf: 1426 print_number(ip, narg, c); 1427 putchar(','); 1428 print_integer_arg(sysdecode_kldunload_flags, 1429 *ip); 1430 ip++; 1431 narg--; 1432 break; 1433 case SYS_linkat: 1434 case SYS_renameat: 1435 case SYS_symlinkat: 1436 print_number(ip, narg, c); 1437 putchar(','); 1438 print_integer_arg_valid(sysdecode_atfd, *ip); 1439 ip++; 1440 narg--; 1441 print_number(ip, narg, c); 1442 break; 1443 case SYS_cap_fcntls_limit: 1444 print_number(ip, narg, c); 1445 putchar(','); 1446 arg = *ip; 1447 ip++; 1448 narg--; 1449 print_mask_arg32(sysdecode_cap_fcntlrights, arg); 1450 break; 1451 case SYS_posix_fadvise: 1452 print_number(ip, narg, c); 1453 print_number(ip, narg, c); 1454 print_number(ip, narg, c); 1455 (void)putchar(','); 1456 print_integer_arg(sysdecode_fadvice, *ip); 1457 ip++; 1458 narg--; 1459 break; 1460 case SYS_procctl: 1461 putchar('('); 1462 print_integer_arg(sysdecode_idtype, *ip); 1463 c = ','; 1464 ip++; 1465 narg--; 1466 print_number64(first, ip, narg, c); 1467 putchar(','); 1468 print_integer_arg(sysdecode_procctl_cmd, *ip); 1469 ip++; 1470 narg--; 1471 break; 1472 case SYS__umtx_op: { 1473 int op; 1474 1475 print_number(ip, narg, c); 1476 putchar(','); 1477 if (print_mask_arg_part(sysdecode_umtx_op_flags, 1478 *ip, &op)) 1479 putchar('|'); 1480 print_integer_arg(sysdecode_umtx_op, op); 1481 putchar('>'); 1482 switch (*ip) { 1483 case UMTX_OP_CV_WAIT: 1484 ip++; 1485 narg--; 1486 putchar(','); 1487 print_mask_argul( 1488 sysdecode_umtx_cvwait_flags, *ip); 1489 break; 1490 case UMTX_OP_RW_RDLOCK: 1491 ip++; 1492 narg--; 1493 putchar(','); 1494 print_mask_argul( 1495 sysdecode_umtx_rwlock_flags, *ip); 1496 break; 1497 } 1498 ip++; 1499 narg--; 1500 break; 1501 } 1502 case SYS_ftruncate: 1503 case SYS_truncate: 1504 print_number(ip, narg, c); 1505 print_number64(first, ip, narg, c); 1506 break; 1507 case SYS_fchownat: 1508 print_number(ip, narg, c); 1509 print_number(ip, narg, c); 1510 print_number(ip, narg, c); 1511 break; 1512 case SYS_fstatat: 1513 case SYS_utimensat: 1514 print_number(ip, narg, c); 1515 print_number(ip, narg, c); 1516 break; 1517 case SYS_unlinkat: 1518 print_number(ip, narg, c); 1519 break; 1520 case SYS_sysarch: 1521 putchar('('); 1522 print_integer_arg(sysdecode_sysarch_number, *ip); 1523 ip++; 1524 narg--; 1525 c = ','; 1526 break; 1527 } 1528 switch (ktr->ktr_code) { 1529 case SYS_chflagsat: 1530 case SYS_fchownat: 1531 case SYS_faccessat: 1532 case SYS_fchmodat: 1533 case SYS_fstatat: 1534 case SYS_linkat: 1535 case SYS_unlinkat: 1536 case SYS_utimensat: 1537 putchar(','); 1538 print_mask_arg0(sysdecode_atflags, *ip); 1539 ip++; 1540 narg--; 1541 break; 1542 } 1543 } 1544 while (narg > 0) { 1545 print_number(ip, narg, c); 1546 } 1547 putchar(')'); 1548 } 1549 putchar('\n'); 1550 } 1551 1552 void 1553 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags) 1554 { 1555 register_t ret = ktr->ktr_retval; 1556 int error = ktr->ktr_error; 1557 1558 syscallname(ktr->ktr_code, sv_flags); 1559 printf(" "); 1560 1561 if (error == 0) { 1562 if (fancy) { 1563 printf("%ld", (long)ret); 1564 if (ret < 0 || ret > 9) 1565 printf("/%#lx", (unsigned long)ret); 1566 } else { 1567 if (decimal) 1568 printf("%ld", (long)ret); 1569 else 1570 printf("%#lx", (unsigned long)ret); 1571 } 1572 } else if (error == ERESTART) 1573 printf("RESTART"); 1574 else if (error == EJUSTRETURN) 1575 printf("JUSTRETURN"); 1576 else { 1577 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno( 1578 syscallabi(sv_flags), error)); 1579 if (fancy) 1580 printf(" %s", strerror(ktr->ktr_error)); 1581 } 1582 putchar('\n'); 1583 } 1584 1585 void 1586 ktrnamei(char *cp, int len) 1587 { 1588 printf("\"%.*s\"\n", len, cp); 1589 } 1590 1591 void 1592 hexdump(char *p, int len, int screenwidth) 1593 { 1594 int n, i; 1595 int width; 1596 1597 width = 0; 1598 do { 1599 width += 2; 1600 i = 13; /* base offset */ 1601 i += (width / 2) + 1; /* spaces every second byte */ 1602 i += (width * 2); /* width of bytes */ 1603 i += 3; /* " |" */ 1604 i += width; /* each byte */ 1605 i += 1; /* "|" */ 1606 } while (i < screenwidth); 1607 width -= 2; 1608 1609 for (n = 0; n < len; n += width) { 1610 for (i = n; i < n + width; i++) { 1611 if ((i % width) == 0) { /* beginning of line */ 1612 printf(" 0x%04x", i); 1613 } 1614 if ((i % 2) == 0) { 1615 printf(" "); 1616 } 1617 if (i < len) 1618 printf("%02x", p[i] & 0xff); 1619 else 1620 printf(" "); 1621 } 1622 printf(" |"); 1623 for (i = n; i < n + width; i++) { 1624 if (i >= len) 1625 break; 1626 if (p[i] >= ' ' && p[i] <= '~') 1627 printf("%c", p[i]); 1628 else 1629 printf("."); 1630 } 1631 printf("|\n"); 1632 } 1633 if ((i % width) != 0) 1634 printf("\n"); 1635 } 1636 1637 void 1638 visdump(char *dp, int datalen, int screenwidth) 1639 { 1640 int col = 0; 1641 char *cp; 1642 int width; 1643 char visbuf[5]; 1644 1645 printf(" \""); 1646 col = 8; 1647 for (;datalen > 0; datalen--, dp++) { 1648 vis(visbuf, *dp, VIS_CSTYLE | VIS_NOLOCALE, *(dp+1)); 1649 cp = visbuf; 1650 /* 1651 * Keep track of printables and 1652 * space chars (like fold(1)). 1653 */ 1654 if (col == 0) { 1655 putchar('\t'); 1656 col = 8; 1657 } 1658 switch(*cp) { 1659 case '\n': 1660 col = 0; 1661 putchar('\n'); 1662 continue; 1663 case '\t': 1664 width = 8 - (col&07); 1665 break; 1666 default: 1667 width = strlen(cp); 1668 } 1669 if (col + width > (screenwidth-2)) { 1670 printf("\\\n\t"); 1671 col = 8; 1672 } 1673 col += width; 1674 do { 1675 putchar(*cp++); 1676 } while (*cp); 1677 } 1678 if (col == 0) 1679 printf(" "); 1680 printf("\"\n"); 1681 } 1682 1683 void 1684 ktrgenio(struct ktr_genio *ktr, int len) 1685 { 1686 int datalen = len - sizeof (struct ktr_genio); 1687 char *dp = (char *)ktr + sizeof (struct ktr_genio); 1688 static int screenwidth = 0; 1689 int i, binary; 1690 1691 printf("fd %d %s %d byte%s\n", ktr->ktr_fd, 1692 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen, 1693 datalen == 1 ? "" : "s"); 1694 if (suppressdata) 1695 return; 1696 if (screenwidth == 0) { 1697 struct winsize ws; 1698 1699 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 && 1700 ws.ws_col > 8) 1701 screenwidth = ws.ws_col; 1702 else 1703 screenwidth = 80; 1704 } 1705 if (maxdata && datalen > maxdata) 1706 datalen = maxdata; 1707 1708 for (i = 0, binary = 0; i < datalen && binary == 0; i++) { 1709 if (dp[i] >= 32 && dp[i] < 127) 1710 continue; 1711 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9) 1712 continue; 1713 binary = 1; 1714 } 1715 if (binary) 1716 hexdump(dp, datalen, screenwidth); 1717 else 1718 visdump(dp, datalen, screenwidth); 1719 } 1720 1721 void 1722 ktrpsig(struct ktr_psig *psig) 1723 { 1724 const char *str; 1725 1726 print_signal(psig->signo); 1727 if (psig->action == SIG_DFL) { 1728 printf(" SIG_DFL"); 1729 } else { 1730 printf(" caught handler=0x%lx mask=0x%x", 1731 (u_long)psig->action, psig->mask.__bits[0]); 1732 } 1733 printf(" code="); 1734 str = sysdecode_sigcode(psig->signo, psig->code); 1735 if (str != NULL) 1736 printf("%s", str); 1737 else 1738 printf("<invalid=%#x>", psig->code); 1739 putchar('\n'); 1740 } 1741 1742 void 1743 ktrcsw_old(struct ktr_csw_old *cs) 1744 { 1745 printf("%s %s\n", cs->out ? "stop" : "resume", 1746 cs->user ? "user" : "kernel"); 1747 } 1748 1749 void 1750 ktrcsw(struct ktr_csw *cs) 1751 { 1752 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume", 1753 cs->user ? "user" : "kernel", cs->wmesg); 1754 } 1755 1756 void 1757 ktruser(int len, void *p) 1758 { 1759 unsigned char *cp; 1760 1761 if (sysdecode_utrace(stdout, p, len)) { 1762 printf("\n"); 1763 return; 1764 } 1765 1766 printf("%d ", len); 1767 cp = p; 1768 while (len--) 1769 if (decimal) 1770 printf(" %d", *cp++); 1771 else 1772 printf(" %02x", *cp++); 1773 printf("\n"); 1774 } 1775 1776 void 1777 ktrcaprights(cap_rights_t *rightsp) 1778 { 1779 1780 printf("cap_rights_t "); 1781 sysdecode_cap_rights(stdout, rightsp); 1782 printf("\n"); 1783 } 1784 1785 static void 1786 ktrtimeval(struct timeval *tv) 1787 { 1788 1789 printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec); 1790 } 1791 1792 void 1793 ktritimerval(struct itimerval *it) 1794 { 1795 1796 printf("itimerval { .interval = "); 1797 ktrtimeval(&it->it_interval); 1798 printf(", .value = "); 1799 ktrtimeval(&it->it_value); 1800 printf(" }\n"); 1801 } 1802 1803 void 1804 ktrsockaddr(struct sockaddr *sa) 1805 { 1806 /* 1807 TODO: Support additional address families 1808 #include <netsmb/netbios.h> 1809 struct sockaddr_nb *nb; 1810 */ 1811 const char *str; 1812 char addr[64]; 1813 1814 /* 1815 * note: ktrstruct() has already verified that sa points to a 1816 * buffer at least sizeof(struct sockaddr) bytes long and exactly 1817 * sa->sa_len bytes long. 1818 */ 1819 printf("struct sockaddr { "); 1820 str = sysdecode_sockaddr_family(sa->sa_family); 1821 if (str != NULL) 1822 printf("%s", str); 1823 else 1824 printf("<invalid=%d>", sa->sa_family); 1825 printf(", "); 1826 1827 #define check_sockaddr_len(n) \ 1828 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \ 1829 printf("invalid"); \ 1830 break; \ 1831 } 1832 1833 switch(sa->sa_family) { 1834 case AF_INET: { 1835 struct sockaddr_in sa_in; 1836 1837 memset(&sa_in, 0, sizeof(sa_in)); 1838 memcpy(&sa_in, sa, sa->sa_len); 1839 check_sockaddr_len(in); 1840 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr); 1841 printf("%s:%u", addr, ntohs(sa_in.sin_port)); 1842 break; 1843 } 1844 case AF_INET6: { 1845 struct sockaddr_in6 sa_in6; 1846 1847 memset(&sa_in6, 0, sizeof(sa_in6)); 1848 memcpy(&sa_in6, sa, sa->sa_len); 1849 check_sockaddr_len(in6); 1850 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6), 1851 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST); 1852 printf("[%s]:%u", addr, htons(sa_in6.sin6_port)); 1853 break; 1854 } 1855 case AF_UNIX: { 1856 struct sockaddr_un sa_un; 1857 1858 memset(&sa_un, 0, sizeof(sa_un)); 1859 memcpy(&sa_un, sa, sa->sa_len); 1860 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path); 1861 break; 1862 } 1863 default: 1864 printf("unknown address family"); 1865 } 1866 printf(" }\n"); 1867 } 1868 1869 void 1870 ktrstat(struct stat *statp) 1871 { 1872 char mode[12], timestr[PATH_MAX + 4]; 1873 struct passwd *pwd; 1874 struct group *grp; 1875 struct tm *tm; 1876 1877 /* 1878 * note: ktrstruct() has already verified that statp points to a 1879 * buffer exactly sizeof(struct stat) bytes long. 1880 */ 1881 printf("struct stat {"); 1882 printf("dev=%ju, ino=%ju, ", 1883 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino); 1884 if (!resolv) 1885 printf("mode=0%jo, ", (uintmax_t)statp->st_mode); 1886 else { 1887 strmode(statp->st_mode, mode); 1888 printf("mode=%s, ", mode); 1889 } 1890 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink); 1891 if (!resolv) { 1892 pwd = NULL; 1893 } else { 1894 #ifdef WITH_CASPER 1895 if (cappwd != NULL) 1896 pwd = cap_getpwuid(cappwd, statp->st_uid); 1897 else 1898 #endif 1899 pwd = getpwuid(statp->st_uid); 1900 } 1901 if (pwd == NULL) 1902 printf("uid=%ju, ", (uintmax_t)statp->st_uid); 1903 else 1904 printf("uid=\"%s\", ", pwd->pw_name); 1905 if (!resolv) { 1906 grp = NULL; 1907 } else { 1908 #ifdef WITH_CASPER 1909 if (capgrp != NULL) 1910 grp = cap_getgrgid(capgrp, statp->st_gid); 1911 else 1912 #endif 1913 grp = getgrgid(statp->st_gid); 1914 } 1915 if (grp == NULL) 1916 printf("gid=%ju, ", (uintmax_t)statp->st_gid); 1917 else 1918 printf("gid=\"%s\", ", grp->gr_name); 1919 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev); 1920 printf("atime="); 1921 if (!resolv) 1922 printf("%jd", (intmax_t)statp->st_atim.tv_sec); 1923 else { 1924 tm = localtime(&statp->st_atim.tv_sec); 1925 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1926 printf("\"%s\"", timestr); 1927 } 1928 if (statp->st_atim.tv_nsec != 0) 1929 printf(".%09ld, ", statp->st_atim.tv_nsec); 1930 else 1931 printf(", "); 1932 printf("mtime="); 1933 if (!resolv) 1934 printf("%jd", (intmax_t)statp->st_mtim.tv_sec); 1935 else { 1936 tm = localtime(&statp->st_mtim.tv_sec); 1937 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1938 printf("\"%s\"", timestr); 1939 } 1940 if (statp->st_mtim.tv_nsec != 0) 1941 printf(".%09ld, ", statp->st_mtim.tv_nsec); 1942 else 1943 printf(", "); 1944 printf("ctime="); 1945 if (!resolv) 1946 printf("%jd", (intmax_t)statp->st_ctim.tv_sec); 1947 else { 1948 tm = localtime(&statp->st_ctim.tv_sec); 1949 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1950 printf("\"%s\"", timestr); 1951 } 1952 if (statp->st_ctim.tv_nsec != 0) 1953 printf(".%09ld, ", statp->st_ctim.tv_nsec); 1954 else 1955 printf(", "); 1956 printf("birthtime="); 1957 if (!resolv) 1958 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec); 1959 else { 1960 tm = localtime(&statp->st_birthtim.tv_sec); 1961 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); 1962 printf("\"%s\"", timestr); 1963 } 1964 if (statp->st_birthtim.tv_nsec != 0) 1965 printf(".%09ld, ", statp->st_birthtim.tv_nsec); 1966 else 1967 printf(", "); 1968 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x", 1969 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize, 1970 (intmax_t)statp->st_blocks, statp->st_flags); 1971 printf(" }\n"); 1972 } 1973 1974 void 1975 ktrbitset(char *name, struct bitset *set, size_t setlen) 1976 { 1977 int i, maxi, c = 0; 1978 1979 if (setlen > INT32_MAX) 1980 setlen = INT32_MAX; 1981 maxi = setlen * CHAR_BIT; 1982 printf("%s [ ", name); 1983 for (i = 0; i < maxi; i++) { 1984 if (!BIT_ISSET(setlen, i, set)) 1985 continue; 1986 if (c == 0) 1987 printf("%d", i); 1988 else 1989 printf(", %d", i); 1990 c++; 1991 } 1992 if (c == 0) 1993 printf(" empty ]\n"); 1994 else 1995 printf(" ]\n"); 1996 } 1997 1998 void 1999 ktrstruct(char *buf, size_t buflen) 2000 { 2001 char *name, *data; 2002 size_t namelen, datalen; 2003 int i; 2004 cap_rights_t rights; 2005 struct itimerval it; 2006 struct stat sb; 2007 struct sockaddr_storage ss; 2008 struct bitset *set; 2009 2010 for (name = buf, namelen = 0; 2011 namelen < buflen && name[namelen] != '\0'; 2012 ++namelen) 2013 /* nothing */; 2014 if (namelen == buflen) 2015 goto invalid; 2016 if (name[namelen] != '\0') 2017 goto invalid; 2018 data = buf + namelen + 1; 2019 datalen = buflen - namelen - 1; 2020 if (datalen == 0) 2021 goto invalid; 2022 /* sanity check */ 2023 for (i = 0; i < (int)namelen; ++i) 2024 if (!isalpha(name[i]) && name[i] != '_') 2025 goto invalid; 2026 if (strcmp(name, "caprights") == 0) { 2027 if (datalen != sizeof(cap_rights_t)) 2028 goto invalid; 2029 memcpy(&rights, data, datalen); 2030 ktrcaprights(&rights); 2031 } else if (strcmp(name, "itimerval") == 0) { 2032 if (datalen != sizeof(struct itimerval)) 2033 goto invalid; 2034 memcpy(&it, data, datalen); 2035 ktritimerval(&it); 2036 } else if (strcmp(name, "stat") == 0) { 2037 if (datalen != sizeof(struct stat)) 2038 goto invalid; 2039 memcpy(&sb, data, datalen); 2040 ktrstat(&sb); 2041 } else if (strcmp(name, "sockaddr") == 0) { 2042 if (datalen > sizeof(ss)) 2043 goto invalid; 2044 memcpy(&ss, data, datalen); 2045 if (datalen != ss.ss_len) 2046 goto invalid; 2047 ktrsockaddr((struct sockaddr *)&ss); 2048 } else if (strcmp(name, "cpuset_t") == 0) { 2049 if (datalen < 1) 2050 goto invalid; 2051 set = malloc(datalen); 2052 if (set == NULL) 2053 errx(1, "%s", strerror(ENOMEM)); 2054 memcpy(set, data, datalen); 2055 ktrbitset(name, set, datalen); 2056 free(set); 2057 } else { 2058 printf("unknown structure\n"); 2059 } 2060 return; 2061 invalid: 2062 printf("invalid record\n"); 2063 } 2064 2065 void 2066 ktrcapfail(struct ktr_cap_fail *ktr) 2067 { 2068 switch (ktr->cap_type) { 2069 case CAPFAIL_NOTCAPABLE: 2070 /* operation on fd with insufficient capabilities */ 2071 printf("operation requires "); 2072 sysdecode_cap_rights(stdout, &ktr->cap_needed); 2073 printf(", descriptor holds "); 2074 sysdecode_cap_rights(stdout, &ktr->cap_held); 2075 break; 2076 case CAPFAIL_INCREASE: 2077 /* requested more capabilities than fd already has */ 2078 printf("attempt to increase capabilities from "); 2079 sysdecode_cap_rights(stdout, &ktr->cap_held); 2080 printf(" to "); 2081 sysdecode_cap_rights(stdout, &ktr->cap_needed); 2082 break; 2083 case CAPFAIL_SYSCALL: 2084 /* called restricted syscall */ 2085 printf("disallowed system call"); 2086 break; 2087 case CAPFAIL_LOOKUP: 2088 /* absolute or AT_FDCWD path, ".." path, etc. */ 2089 printf("restricted VFS lookup"); 2090 break; 2091 default: 2092 printf("unknown capability failure: "); 2093 sysdecode_cap_rights(stdout, &ktr->cap_needed); 2094 printf(" "); 2095 sysdecode_cap_rights(stdout, &ktr->cap_held); 2096 break; 2097 } 2098 printf("\n"); 2099 } 2100 2101 void 2102 ktrfault(struct ktr_fault *ktr) 2103 { 2104 2105 printf("0x%jx ", (uintmax_t)ktr->vaddr); 2106 print_mask_arg(sysdecode_vmprot, ktr->type); 2107 printf("\n"); 2108 } 2109 2110 void 2111 ktrfaultend(struct ktr_faultend *ktr) 2112 { 2113 const char *str; 2114 2115 str = sysdecode_vmresult(ktr->result); 2116 if (str != NULL) 2117 printf("%s", str); 2118 else 2119 printf("<invalid=%d>", ktr->result); 2120 printf("\n"); 2121 } 2122 2123 void 2124 ktrkevent(struct kevent *kev) 2125 { 2126 2127 printf("{ ident="); 2128 switch (kev->filter) { 2129 case EVFILT_READ: 2130 case EVFILT_WRITE: 2131 case EVFILT_VNODE: 2132 case EVFILT_PROC: 2133 case EVFILT_TIMER: 2134 case EVFILT_PROCDESC: 2135 case EVFILT_EMPTY: 2136 printf("%ju", (uintmax_t)kev->ident); 2137 break; 2138 case EVFILT_SIGNAL: 2139 print_signal(kev->ident); 2140 break; 2141 default: 2142 printf("%p", (void *)kev->ident); 2143 } 2144 printf(", filter="); 2145 print_integer_arg(sysdecode_kevent_filter, kev->filter); 2146 printf(", flags="); 2147 print_mask_arg0(sysdecode_kevent_flags, kev->flags); 2148 printf(", fflags="); 2149 sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags, 2150 decimal ? 10 : 16); 2151 printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata); 2152 } 2153 2154 void 2155 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen) 2156 { 2157 struct kevent kev; 2158 char *name, *data; 2159 size_t namelen, datalen; 2160 int i; 2161 bool first; 2162 2163 buflen -= sizeof(*ksa); 2164 for (name = (char *)(ksa + 1), namelen = 0; 2165 namelen < buflen && name[namelen] != '\0'; 2166 ++namelen) 2167 /* nothing */; 2168 if (namelen == buflen) 2169 goto invalid; 2170 if (name[namelen] != '\0') 2171 goto invalid; 2172 /* sanity check */ 2173 for (i = 0; i < (int)namelen; ++i) 2174 if (!isalnum(name[i]) && name[i] != '_') 2175 goto invalid; 2176 data = name + namelen + 1; 2177 datalen = buflen - namelen - 1; 2178 printf("struct %s[] = { ", name); 2179 first = true; 2180 for (; datalen >= ksa->struct_size; 2181 data += ksa->struct_size, datalen -= ksa->struct_size) { 2182 if (!first) 2183 printf("\n "); 2184 else 2185 first = false; 2186 if (strcmp(name, "kevent") == 0) { 2187 if (ksa->struct_size != sizeof(kev)) 2188 goto bad_size; 2189 memcpy(&kev, data, sizeof(kev)); 2190 ktrkevent(&kev); 2191 } else if (strcmp(name, "freebsd11_kevent") == 0) { 2192 struct freebsd11_kevent kev11; 2193 2194 if (ksa->struct_size != sizeof(kev11)) 2195 goto bad_size; 2196 memcpy(&kev11, data, sizeof(kev11)); 2197 memset(&kev, 0, sizeof(kev)); 2198 kev.ident = kev11.ident; 2199 kev.filter = kev11.filter; 2200 kev.flags = kev11.flags; 2201 kev.fflags = kev11.fflags; 2202 kev.data = kev11.data; 2203 kev.udata = kev11.udata; 2204 ktrkevent(&kev); 2205 #ifdef _WANT_KEVENT32 2206 } else if (strcmp(name, "kevent32") == 0) { 2207 struct kevent32 kev32; 2208 2209 if (ksa->struct_size != sizeof(kev32)) 2210 goto bad_size; 2211 memcpy(&kev32, data, sizeof(kev32)); 2212 memset(&kev, 0, sizeof(kev)); 2213 kev.ident = kev32.ident; 2214 kev.filter = kev32.filter; 2215 kev.flags = kev32.flags; 2216 kev.fflags = kev32.fflags; 2217 #if BYTE_ORDER == BIG_ENDIAN 2218 kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32); 2219 #else 2220 kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32); 2221 #endif 2222 kev.udata = (void *)(uintptr_t)kev32.udata; 2223 ktrkevent(&kev); 2224 } else if (strcmp(name, "freebsd11_kevent32") == 0) { 2225 struct freebsd11_kevent32 kev32; 2226 2227 if (ksa->struct_size != sizeof(kev32)) 2228 goto bad_size; 2229 memcpy(&kev32, data, sizeof(kev32)); 2230 memset(&kev, 0, sizeof(kev)); 2231 kev.ident = kev32.ident; 2232 kev.filter = kev32.filter; 2233 kev.flags = kev32.flags; 2234 kev.fflags = kev32.fflags; 2235 kev.data = kev32.data; 2236 kev.udata = (void *)(uintptr_t)kev32.udata; 2237 ktrkevent(&kev); 2238 #endif 2239 } else { 2240 printf("<unknown structure> }\n"); 2241 return; 2242 } 2243 } 2244 printf(" }\n"); 2245 return; 2246 invalid: 2247 printf("invalid record\n"); 2248 return; 2249 bad_size: 2250 printf("<bad size> }\n"); 2251 return; 2252 } 2253 2254 void 2255 usage(void) 2256 { 2257 fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] " 2258 "[-m maxdata] [-p pid] [-t trstr]\n"); 2259 exit(1); 2260 } 2261