usr.bin/kdump/kdump.c

   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 #include <sys/param.h>
  52 #include <sys/capsicum.h>
  53 #include <sys/errno.h>
  54 #include <sys/time.h>
  55 #include <sys/uio.h>
  56 #include <sys/event.h>
  57 #include <sys/ktrace.h>
  58 #include <sys/ioctl.h>
  59 #include <sys/socket.h>
  60 #include <sys/stat.h>
  61 #include <sys/sysent.h>
  62 #include <sys/umtx.h>
  63 #include <sys/un.h>
  64 #include <sys/queue.h>
  65 #include <sys/wait.h>
  66 #ifdef WITH_CASPER
  67 #include <sys/nv.h>
  68 #endif
  69 #include <arpa/inet.h>
  70 #include <netinet/in.h>
  71 #include <ctype.h>
  72 #include <capsicum_helpers.h>
  73 #include <err.h>
  74 #include <grp.h>
  75 #include <inttypes.h>
  76 #include <locale.h>
  77 #include <netdb.h>
  78 #include <nl_types.h>
  79 #include <pwd.h>
  80 #include <stddef.h>
  81 #include <stdio.h>
  82 #include <stdlib.h>
  83 #include <string.h>
  84 #include <sysdecode.h>
  85 #include <time.h>
  86 #include <unistd.h>
  87 #include <vis.h>
  88 #include "ktrace.h"
  89
  90 #ifdef WITH_CASPER
  91 #include <libcasper.h>
  92
  93 #include <casper/cap_grp.h>
  94 #include <casper/cap_pwd.h>
  95 #endif
  96
  97 u_int abidump(struct ktr_header *);
  98 int fetchprocinfo(struct ktr_header *, u_int *);
  99 int fread_tail(void *, int, int);
 100 void dumpheader(struct ktr_header *);
 101 void ktrsyscall(struct ktr_syscall *, u_int);
 102 void ktrsysret(struct ktr_sysret *, u_int);
 103 void ktrnamei(char *, int);
 104 void hexdump(char *, int, int);
 105 void visdump(char *, int, int);
 106 void ktrgenio(struct ktr_genio *, int);
 107 void ktrpsig(struct ktr_psig *);
 108 void ktrcsw(struct ktr_csw *);
 109 void ktrcsw_old(struct ktr_csw_old *);
 110 void ktruser(int, void *);
 111 void ktrcaprights(cap_rights_t *);
 112 void ktritimerval(struct itimerval *it);
 113 void ktrsockaddr(struct sockaddr *);
 114 void ktrstat(struct stat *);
 115 void ktrstruct(char *, size_t);
 116 void ktrcapfail(struct ktr_cap_fail *);
 117 void ktrfault(struct ktr_fault *);
 118 void ktrfaultend(struct ktr_faultend *);
 119 void ktrkevent(struct kevent *);
 120 void ktrstructarray(struct ktr_struct_array *, size_t);
 121 void usage(void);
 122
 123 #define TIMESTAMP_NONE          0x0
 124 #define TIMESTAMP_ABSOLUTE      0x1
 125 #define TIMESTAMP_ELAPSED       0x2
 126 #define TIMESTAMP_RELATIVE      0x4
 127
 128 static int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
 129     resolv = 0, abiflag = 0, syscallno = 0;
 130 static const char *tracefile = DEF_TRACEFILE;
 131 static struct ktr_header ktr_header;
 132
 133 #define TIME_FORMAT     "%b %e %T %Y"
 134 #define eqs(s1, s2)     (strcmp((s1), (s2)) == 0)
 135
 136 #define print_number64(first,i,n,c) do {                                \
 137         uint64_t __v;                                                   \
 138                                                                         \
 139         if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) {    \
 140                 (i)++;                                                  \
 141                 (n)--;                                                  \
 142         }                                                               \
 143         if (quad_slots == 2)                                            \
 144                 __v = (uint64_t)(uint32_t)(i)[0] |                      \
 145                     ((uint64_t)(uint32_t)(i)[1]) << 32;                 \
 146         else                                                            \
 147                 __v = (uint64_t)*(i);                                   \
 148         if (decimal)                                                    \
 149                 printf("%c%jd", (c), (intmax_t)__v);                    \
 150         else                                                            \
 151                 printf("%c%#jx", (c), (uintmax_t)__v);                  \
 152         (i) += quad_slots;                                              \
 153         (n) -= quad_slots;                                              \
 154         (c) = ',';                                                      \
 155 } while (0)
 156
 157 #define print_number(i,n,c) do {                                        \
 158         if (decimal)                                                    \
 159                 printf("%c%jd", c, (intmax_t)*i);                       \
 160         else                                                            \
 161                 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i);       \
 162         i++;                                                            \
 163         n--;                                                            \
 164         c = ',';                                                        \
 165 } while (0)
 166
 167 struct proc_info
 168 {
 169         TAILQ_ENTRY(proc_info)  info;
 170         u_int                   sv_flags;
 171         pid_t                   pid;
 172 };
 173
 174 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
 175
 176 #ifdef WITH_CASPER
 177 static cap_channel_t *cappwd, *capgrp;
 178 #endif
 179
 180 static void
 181 strerror_init(void)
 182 {
 183
 184         /*
 185          * Cache NLS data before entering capability mode.
 186          * XXXPJD: There should be strerror_init() and strsignal_init() in libc.
 187          */
 188         (void)catopen("libc", NL_CAT_LOCALE);
 189 }
 190
 191 static void
 192 localtime_init(void)
 193 {
 194         time_t ltime;
 195
 196         /*
 197          * Allow localtime(3) to cache /etc/localtime content before entering
 198          * capability mode.
 199          * XXXPJD: There should be localtime_init() in libc.
 200          */
 201         (void)time(&ltime);
 202         (void)localtime(&ltime);
 203 }
 204
 205 #ifdef WITH_CASPER
 206 static int
 207 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
 208 {
 209         cap_channel_t *capcas, *cappwdloc, *capgrploc;
 210         const char *cmds[1], *fields[1];
 211
 212         capcas = cap_init();
 213         if (capcas == NULL) {
 214                 err(1, "unable to create casper process");
 215                 exit(1);
 216         }
 217         cappwdloc = cap_service_open(capcas, "system.pwd");
 218         capgrploc = cap_service_open(capcas, "system.grp");
 219         /* Casper capability no longer needed. */
 220         cap_close(capcas);
 221         if (cappwdloc == NULL || capgrploc == NULL) {
 222                 if (cappwdloc == NULL)
 223                         warn("unable to open system.pwd service");
 224                 if (capgrploc == NULL)
 225                         warn("unable to open system.grp service");
 226                 exit(1);
 227         }
 228         /* Limit system.pwd to only getpwuid() function and pw_name field. */
 229         cmds[0] = "getpwuid";
 230         if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
 231                 err(1, "unable to limit system.pwd service");
 232         fields[0] = "pw_name";
 233         if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
 234                 err(1, "unable to limit system.pwd service");
 235         /* Limit system.grp to only getgrgid() function and gr_name field. */
 236         cmds[0] = "getgrgid";
 237         if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
 238                 err(1, "unable to limit system.grp service");
 239         fields[0] = "gr_name";
 240         if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
 241                 err(1, "unable to limit system.grp service");
 242
 243         *cappwdp = cappwdloc;
 244         *capgrpp = capgrploc;
 245         return (0);
 246 }
 247 #endif  /* WITH_CASPER */
 248
 249 static void
 250 print_integer_arg(const char *(*decoder)(int), int value)
 251 {
 252         const char *str;
 253
 254         str = decoder(value);
 255         if (str != NULL)
 256                 printf("%s", str);
 257         else {
 258                 if (decimal)
 259                         printf("<invalid=%d>", value);
 260                 else
 261                         printf("<invalid=%#x>", value);
 262         }
 263 }
 264
 265 /* Like print_integer_arg but unknown values are treated as valid. */
 266 static void
 267 print_integer_arg_valid(const char *(*decoder)(int), int value)
 268 {
 269         const char *str;
 270
 271         str = decoder(value);
 272         if (str != NULL)
 273                 printf("%s", str);
 274         else {
 275                 if (decimal)
 276                         printf("%d", value);
 277                 else
 278                         printf("%#x", value);
 279         }
 280 }
 281
 282 static void
 283 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
 284 {
 285         bool invalid;
 286         int rem;
 287
 288         printf("%#x<", value);
 289         invalid = !decoder(stdout, value, &rem);
 290         printf(">");
 291         if (invalid)
 292                 printf("<invalid>%u", rem);
 293 }
 294
 295 static void
 296 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
 297 {
 298         bool invalid;
 299         int rem;
 300
 301         if (value == 0) {
 302                 printf("0");
 303                 return;
 304         }
 305         printf("%#x<", value);
 306         invalid = !decoder(stdout, value, &rem);
 307         printf(">");
 308         if (invalid)
 309                 printf("<invalid>%u", rem);
 310 }
 311
 312 static void
 313 decode_fileflags(fflags_t value)
 314 {
 315         bool invalid;
 316         fflags_t rem;
 317
 318         if (value == 0) {
 319                 printf("0");
 320                 return;
 321         }
 322         printf("%#x<", value);
 323         invalid = !sysdecode_fileflags(stdout, value, &rem);
 324         printf(">");
 325         if (invalid)
 326                 printf("<invalid>%u", rem);
 327 }
 328
 329 static void
 330 decode_filemode(int value)
 331 {
 332         bool invalid;
 333         int rem;
 334
 335         if (value == 0) {
 336                 printf("0");
 337                 return;
 338         }
 339         printf("%#o<", value);
 340         invalid = !sysdecode_filemode(stdout, value, &rem);
 341         printf(">");
 342         if (invalid)
 343                 printf("<invalid>%u", rem);
 344 }
 345
 346 static void
 347 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
 348 {
 349         bool invalid;
 350         uint32_t rem;
 351
 352         printf("%#x<", value);
 353         invalid = !decoder(stdout, value, &rem);
 354         printf(">");
 355         if (invalid)
 356                 printf("<invalid>%u", rem);
 357 }
 358
 359 static void
 360 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
 361 {
 362         bool invalid;
 363         u_long rem;
 364
 365         if (value == 0) {
 366                 printf("0");
 367                 return;
 368         }
 369         printf("%#lx<", value);
 370         invalid = !decoder(stdout, value, &rem);
 371         printf(">");
 372         if (invalid)
 373                 printf("<invalid>%lu", rem);
 374 }
 375
 376 int
 377 main(int argc, char *argv[])
 378 {
 379         int ch, ktrlen, size;
 380         void *m;
 381         int trpoints = ALL_POINTS;
 382         int drop_logged;
 383         pid_t pid = 0;
 384         u_int sv_flags;
 385
 386         setlocale(LC_CTYPE, "");
 387
 388         timestamp = TIMESTAMP_NONE;
 389
 390         while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
 391                 switch (ch) {
 392                 case 'A':
 393                         abiflag = 1;
 394                         break;
 395                 case 'f':
 396                         tracefile = optarg;
 397                         break;
 398                 case 'd':
 399                         decimal = 1;
 400                         break;
 401                 case 'l':
 402                         tail = 1;
 403                         break;
 404                 case 'm':
 405                         maxdata = atoi(optarg);
 406                         break;
 407                 case 'n':
 408                         fancy = 0;
 409                         break;
 410                 case 'p':
 411                         pid = atoi(optarg);
 412                         break;
 413                 case 'r':
 414                         resolv = 1;
 415                         break;
 416                 case 'S':
 417                         syscallno = 1;
 418                         break;
 419                 case 's':
 420                         suppressdata = 1;
 421                         break;
 422                 case 'E':
 423                         timestamp |= TIMESTAMP_ELAPSED;
 424                         break;
 425                 case 'H':
 426                         threads = 1;
 427                         break;
 428                 case 'R':
 429                         timestamp |= TIMESTAMP_RELATIVE;
 430                         break;
 431                 case 'T':
 432                         timestamp |= TIMESTAMP_ABSOLUTE;
 433                         break;
 434                 case 't':
 435                         trpoints = getpoints(optarg);
 436                         if (trpoints < 0)
 437                                 errx(1, "unknown trace point in %s", optarg);
 438                         break;
 439                 default:
 440                         usage();
 441                 }
 442
 443         if (argc > optind)
 444                 usage();
 445
 446         m = malloc(size = 1025);
 447         if (m == NULL)
 448                 errx(1, "%s", strerror(ENOMEM));
 449         if (strcmp(tracefile, "-") != 0)
 450                 if (!freopen(tracefile, "r", stdin))
 451                         err(1, "%s", tracefile);
 452
 453         strerror_init();
 454         localtime_init();
 455 #ifdef WITH_CASPER
 456         if (resolv != 0) {
 457                 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
 458                         cappwd = NULL;
 459                         capgrp = NULL;
 460                 }
 461         }
 462         if (resolv == 0 || (cappwd != NULL && capgrp != NULL)) {
 463                 if (cap_enter() < 0 && errno != ENOSYS)
 464                         err(1, "unable to enter capability mode");
 465         }
 466 #else
 467         if (resolv == 0) {
 468                 if (cap_enter() < 0 && errno != ENOSYS)
 469                         err(1, "unable to enter capability mode");
 470         }
 471 #endif
 472         if (caph_limit_stdio() == -1)
 473                 err(1, "unable to limit stdio");
 474
 475         TAILQ_INIT(&trace_procs);
 476         drop_logged = 0;
 477         while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
 478                 if (ktr_header.ktr_type & KTR_DROP) {
 479                         ktr_header.ktr_type &= ~KTR_DROP;
 480                         if (!drop_logged && threads) {
 481                                 printf(
 482                                     "%6jd %6jd %-8.*s Events dropped.\n",
 483                                     (intmax_t)ktr_header.ktr_pid,
 484                                     ktr_header.ktr_tid > 0 ?
 485                                     (intmax_t)ktr_header.ktr_tid : 0,
 486                                     MAXCOMLEN, ktr_header.ktr_comm);
 487                                 drop_logged = 1;
 488                         } else if (!drop_logged) {
 489                                 printf("%6jd %-8.*s Events dropped.\n",
 490                                     (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
 491                                     ktr_header.ktr_comm);
 492                                 drop_logged = 1;
 493                         }
 494                 }
 495                 if (trpoints & (1<<ktr_header.ktr_type))
 496                         if (pid == 0 || ktr_header.ktr_pid == pid ||
 497                             ktr_header.ktr_tid == pid)
 498                                 dumpheader(&ktr_header);
 499                 if ((ktrlen = ktr_header.ktr_len) < 0)
 500                         errx(1, "bogus length 0x%x", ktrlen);
 501                 if (ktrlen > size) {
 502                         m = realloc(m, ktrlen+1);
 503                         if (m == NULL)
 504                                 errx(1, "%s", strerror(ENOMEM));
 505                         size = ktrlen;
 506                 }
 507                 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
 508                         errx(1, "data too short");
 509                 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
 510                         continue;
 511                 sv_flags = abidump(&ktr_header);
 512                 if (pid && ktr_header.ktr_pid != pid &&
 513                     ktr_header.ktr_tid != pid)
 514                         continue;
 515                 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
 516                         continue;
 517                 drop_logged = 0;
 518                 switch (ktr_header.ktr_type) {
 519                 case KTR_SYSCALL:
 520                         ktrsyscall((struct ktr_syscall *)m, sv_flags);
 521                         break;
 522                 case KTR_SYSRET:
 523                         ktrsysret((struct ktr_sysret *)m, sv_flags);
 524                         break;
 525                 case KTR_NAMEI:
 526                 case KTR_SYSCTL:
 527                         ktrnamei(m, ktrlen);
 528                         break;
 529                 case KTR_GENIO:
 530                         ktrgenio((struct ktr_genio *)m, ktrlen);
 531                         break;
 532                 case KTR_PSIG:
 533                         ktrpsig((struct ktr_psig *)m);
 534                         break;
 535                 case KTR_CSW:
 536                         if (ktrlen == sizeof(struct ktr_csw_old))
 537                                 ktrcsw_old((struct ktr_csw_old *)m);
 538                         else
 539                                 ktrcsw((struct ktr_csw *)m);
 540                         break;
 541                 case KTR_USER:
 542                         ktruser(ktrlen, m);
 543                         break;
 544                 case KTR_STRUCT:
 545                         ktrstruct(m, ktrlen);
 546                         break;
 547                 case KTR_CAPFAIL:
 548                         ktrcapfail((struct ktr_cap_fail *)m);
 549                         break;
 550                 case KTR_FAULT:
 551                         ktrfault((struct ktr_fault *)m);
 552                         break;
 553                 case KTR_FAULTEND:
 554                         ktrfaultend((struct ktr_faultend *)m);
 555                         break;
 556                 case KTR_STRUCT_ARRAY:
 557                         ktrstructarray((struct ktr_struct_array *)m, ktrlen);
 558                         break;
 559                 default:
 560                         printf("\n");
 561                         break;
 562                 }
 563                 if (tail)
 564                         fflush(stdout);
 565         }
 566         return 0;
 567 }
 568
 569 int
 570 fread_tail(void *buf, int size, int num)
 571 {
 572         int i;
 573
 574         while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
 575                 sleep(1);
 576                 clearerr(stdin);
 577         }
 578         return (i);
 579 }
 580
 581 int
 582 fetchprocinfo(struct ktr_header *kth, u_int *flags)
 583 {
 584         struct proc_info *pi;
 585
 586         switch (kth->ktr_type) {
 587         case KTR_PROCCTOR:
 588                 TAILQ_FOREACH(pi, &trace_procs, info) {
 589                         if (pi->pid == kth->ktr_pid) {
 590                                 TAILQ_REMOVE(&trace_procs, pi, info);
 591                                 break;
 592                         }
 593                 }
 594                 pi = malloc(sizeof(struct proc_info));
 595                 if (pi == NULL)
 596                         errx(1, "%s", strerror(ENOMEM));
 597                 pi->sv_flags = *flags;
 598                 pi->pid = kth->ktr_pid;
 599                 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
 600                 return (1);
 601
 602         case KTR_PROCDTOR:
 603                 TAILQ_FOREACH(pi, &trace_procs, info) {
 604                         if (pi->pid == kth->ktr_pid) {
 605                                 TAILQ_REMOVE(&trace_procs, pi, info);
 606                                 free(pi);
 607                                 break;
 608                         }
 609                 }
 610                 return (1);
 611         }
 612
 613         return (0);
 614 }
 615
 616 u_int
 617 abidump(struct ktr_header *kth)
 618 {
 619         struct proc_info *pi;
 620         const char *abi;
 621         const char *arch;
 622         u_int flags = 0;
 623
 624         TAILQ_FOREACH(pi, &trace_procs, info) {
 625                 if (pi->pid == kth->ktr_pid) {
 626                         flags = pi->sv_flags;
 627                         break;
 628                 }
 629         }
 630
 631         if (abiflag == 0)
 632                 return (flags);
 633
 634         switch (flags & SV_ABI_MASK) {
 635         case SV_ABI_LINUX:
 636                 abi = "L";
 637                 break;
 638         case SV_ABI_FREEBSD:
 639                 abi = "F";
 640                 break;
 641         case SV_ABI_CLOUDABI:
 642                 abi = "C";
 643                 break;
 644         default:
 645                 abi = "U";
 646                 break;
 647         }
 648
 649         if (flags & SV_LP64)
 650                 arch = "64";
 651         else if (flags & SV_ILP32)
 652                 arch = "32";
 653         else
 654                 arch = "00";
 655
 656         printf("%s%s  ", abi, arch);
 657
 658         return (flags);
 659 }
 660
 661 void
 662 dumpheader(struct ktr_header *kth)
 663 {
 664         static char unknown[64];
 665         static struct timeval prevtime, prevtime_e;
 666         struct timeval temp;
 667         const char *type;
 668         const char *sign;
 669
 670         switch (kth->ktr_type) {
 671         case KTR_SYSCALL:
 672                 type = "CALL";
 673                 break;
 674         case KTR_SYSRET:
 675                 type = "RET ";
 676                 break;
 677         case KTR_NAMEI:
 678                 type = "NAMI";
 679                 break;
 680         case KTR_GENIO:
 681                 type = "GIO ";
 682                 break;
 683         case KTR_PSIG:
 684                 type = "PSIG";
 685                 break;
 686         case KTR_CSW:
 687                 type = "CSW ";
 688                 break;
 689         case KTR_USER:
 690                 type = "USER";
 691                 break;
 692         case KTR_STRUCT:
 693         case KTR_STRUCT_ARRAY:
 694                 type = "STRU";
 695                 break;
 696         case KTR_SYSCTL:
 697                 type = "SCTL";
 698                 break;
 699         case KTR_PROCCTOR:
 700                 /* FALLTHROUGH */
 701         case KTR_PROCDTOR:
 702                 return;
 703         case KTR_CAPFAIL:
 704                 type = "CAP ";
 705                 break;
 706         case KTR_FAULT:
 707                 type = "PFLT";
 708                 break;
 709         case KTR_FAULTEND:
 710                 type = "PRET";
 711                 break;
 712         default:
 713                 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
 714                 type = unknown;
 715         }
 716
 717         /*
 718          * The ktr_tid field was previously the ktr_buffer field, which held
 719          * the kernel pointer value for the buffer associated with data
 720          * following the record header.  It now holds a threadid, but only
 721          * for trace files after the change.  Older trace files still contain
 722          * kernel pointers.  Detect this and suppress the results by printing
 723          * negative tid's as 0.
 724          */
 725         if (threads)
 726                 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
 727                     kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
 728                     MAXCOMLEN, kth->ktr_comm);
 729         else
 730                 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
 731                     kth->ktr_comm);
 732         if (timestamp) {
 733                 if (timestamp & TIMESTAMP_ABSOLUTE) {
 734                         printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
 735                             kth->ktr_time.tv_usec);
 736                 }
 737                 if (timestamp & TIMESTAMP_ELAPSED) {
 738                         if (prevtime_e.tv_sec == 0)
 739                                 prevtime_e = kth->ktr_time;
 740                         timersub(&kth->ktr_time, &prevtime_e, &temp);
 741                         printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
 742                             temp.tv_usec);
 743                 }
 744                 if (timestamp & TIMESTAMP_RELATIVE) {
 745                         if (prevtime.tv_sec == 0)
 746                                 prevtime = kth->ktr_time;
 747                         if (timercmp(&kth->ktr_time, &prevtime, <)) {
 748                                 timersub(&prevtime, &kth->ktr_time, &temp);
 749                                 sign = "-";
 750                         } else {
 751                                 timersub(&kth->ktr_time, &prevtime, &temp);
 752                                 sign = "";
 753                         }
 754                         prevtime = kth->ktr_time;
 755                         printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
 756                             temp.tv_usec);
 757                 }
 758         }
 759         printf("%s  ", type);
 760 }
 761
 762 #include <sys/syscall.h>
 763
 764 static void
 765 ioctlname(unsigned long val)
 766 {
 767         const char *str;
 768
 769         str = sysdecode_ioctlname(val);
 770         if (str != NULL)
 771                 printf("%s", str);
 772         else if (decimal)
 773                 printf("%lu", val);
 774         else
 775                 printf("%#lx", val);
 776 }
 777
 778 static enum sysdecode_abi
 779 syscallabi(u_int sv_flags)
 780 {
 781
 782         if (sv_flags == 0)
 783                 return (SYSDECODE_ABI_FREEBSD);
 784         switch (sv_flags & SV_ABI_MASK) {
 785         case SV_ABI_FREEBSD:
 786                 return (SYSDECODE_ABI_FREEBSD);
 787 #if defined(__amd64__) || defined(__i386__)
 788         case SV_ABI_LINUX:
 789 #ifdef __amd64__
 790                 if (sv_flags & SV_ILP32)
 791                         return (SYSDECODE_ABI_LINUX32);
 792 #endif
 793                 return (SYSDECODE_ABI_LINUX);
 794 #endif
 795 #if defined(__aarch64__) || defined(__amd64__)
 796         case SV_ABI_CLOUDABI:
 797                 return (SYSDECODE_ABI_CLOUDABI64);
 798 #endif
 799         default:
 800                 return (SYSDECODE_ABI_UNKNOWN);
 801         }
 802 }
 803
 804 static void
 805 syscallname(u_int code, u_int sv_flags)
 806 {
 807         const char *name;
 808
 809         name = sysdecode_syscallname(syscallabi(sv_flags), code);
 810         if (name == NULL)
 811                 printf("[%d]", code);
 812         else {
 813                 printf("%s", name);
 814                 if (syscallno)
 815                         printf("[%d]", code);
 816         }
 817 }
 818
 819 static void
 820 print_signal(int signo)
 821 {
 822         const char *signame;
 823
 824         signame = sysdecode_signal(signo);
 825         if (signame != NULL)
 826                 printf("%s", signame);
 827         else
 828                 printf("SIG %d", signo);
 829 }
 830
 831 void
 832 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
 833 {
 834         int narg = ktr->ktr_narg;
 835         register_t *ip, *first;
 836         intmax_t arg;
 837         int quad_align, quad_slots;
 838
 839         syscallname(ktr->ktr_code, sv_flags);
 840         ip = first = &ktr->ktr_args[0];
 841         if (narg) {
 842                 char c = '(';
 843                 if (fancy &&
 844                     (sv_flags == 0 ||
 845                     (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
 846                         quad_align = 0;
 847                         if (sv_flags & SV_ILP32) {
 848 #ifdef __powerpc__
 849                                 quad_align = 1;
 850 #endif
 851                                 quad_slots = 2;
 852                         } else
 853                                 quad_slots = 1;
 854                         switch (ktr->ktr_code) {
 855                         case SYS_bindat:
 856                         case SYS_chflagsat:
 857                         case SYS_connectat:
 858                         case SYS_faccessat:
 859                         case SYS_fchmodat:
 860                         case SYS_fchownat:
 861                         case SYS_fstatat:
 862                         case SYS_futimesat:
 863                         case SYS_linkat:
 864                         case SYS_mkdirat:
 865                         case SYS_mkfifoat:
 866                         case SYS_mknodat:
 867                         case SYS_openat:
 868                         case SYS_readlinkat:
 869                         case SYS_renameat:
 870                         case SYS_unlinkat:
 871                         case SYS_utimensat:
 872                                 putchar('(');
 873                                 print_integer_arg_valid(sysdecode_atfd, *ip);
 874                                 c = ',';
 875                                 ip++;
 876                                 narg--;
 877                                 break;
 878                         }
 879                         switch (ktr->ktr_code) {
 880                         case SYS_ioctl: {
 881                                 print_number(ip, narg, c);
 882                                 putchar(c);
 883                                 ioctlname(*ip);
 884                                 c = ',';
 885                                 ip++;
 886                                 narg--;
 887                                 break;
 888                         }
 889                         case SYS_ptrace:
 890                                 putchar('(');
 891                                 print_integer_arg(sysdecode_ptrace_request, *ip);
 892                                 c = ',';
 893                                 ip++;
 894                                 narg--;
 895                                 break;
 896                         case SYS_access:
 897                         case SYS_eaccess:
 898                         case SYS_faccessat:
 899                                 print_number(ip, narg, c);
 900                                 putchar(',');
 901                                 print_mask_arg(sysdecode_access_mode, *ip);
 902                                 ip++;
 903                                 narg--;
 904                                 break;
 905                         case SYS_open:
 906                         case SYS_openat:
 907                                 print_number(ip, narg, c);
 908                                 putchar(',');
 909                                 print_mask_arg(sysdecode_open_flags, ip[0]);
 910                                 if ((ip[0] & O_CREAT) == O_CREAT) {
 911                                         putchar(',');
 912                                         decode_filemode(ip[1]);
 913                                 }
 914                                 ip += 2;
 915                                 narg -= 2;
 916                                 break;
 917                         case SYS_wait4:
 918                                 print_number(ip, narg, c);
 919                                 print_number(ip, narg, c);
 920                                 putchar(',');
 921                                 print_mask_arg0(sysdecode_wait4_options, *ip);
 922                                 ip++;
 923                                 narg--;
 924                                 break;
 925                         case SYS_wait6:
 926                                 putchar('(');
 927                                 print_integer_arg(sysdecode_idtype, *ip);
 928                                 c = ',';
 929                                 ip++;
 930                                 narg--;
 931                                 print_number64(first, ip, narg, c);
 932                                 print_number(ip, narg, c);
 933                                 putchar(',');
 934                                 print_mask_arg(sysdecode_wait6_options, *ip);
 935                                 ip++;
 936                                 narg--;
 937                                 break;
 938                         case SYS_chmod:
 939                         case SYS_fchmod:
 940                         case SYS_lchmod:
 941                         case SYS_fchmodat:
 942                                 print_number(ip, narg, c);
 943                                 putchar(',');
 944                                 decode_filemode(*ip);
 945                                 ip++;
 946                                 narg--;
 947                                 break;
 948                         case SYS_mknodat:
 949                                 print_number(ip, narg, c);
 950                                 putchar(',');
 951                                 decode_filemode(*ip);
 952                                 ip++;
 953                                 narg--;
 954                                 break;
 955                         case SYS_getfsstat:
 956                                 print_number(ip, narg, c);
 957                                 print_number(ip, narg, c);
 958                                 putchar(',');
 959                                 print_integer_arg(sysdecode_getfsstat_mode, *ip);
 960                                 ip++;
 961                                 narg--;
 962                                 break;
 963                         case SYS_mount:
 964                                 print_number(ip, narg, c);
 965                                 print_number(ip, narg, c);
 966                                 putchar(',');
 967                                 print_mask_arg(sysdecode_mount_flags, *ip);
 968                                 ip++;
 969                                 narg--;
 970                                 break;
 971                         case SYS_unmount:
 972                                 print_number(ip, narg, c);
 973                                 putchar(',');
 974                                 print_mask_arg(sysdecode_mount_flags, *ip);
 975                                 ip++;
 976                                 narg--;
 977                                 break;
 978                         case SYS_recvmsg:
 979                         case SYS_sendmsg:
 980                                 print_number(ip, narg, c);
 981                                 print_number(ip, narg, c);
 982                                 putchar(',');
 983                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 984                                 ip++;
 985                                 narg--;
 986                                 break;
 987                         case SYS_recvfrom:
 988                         case SYS_sendto:
 989                                 print_number(ip, narg, c);
 990                                 print_number(ip, narg, c);
 991                                 print_number(ip, narg, c);
 992                                 putchar(',');
 993                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 994                                 ip++;
 995                                 narg--;
 996                                 break;
 997                         case SYS_chflags:
 998                         case SYS_chflagsat:
 999                         case SYS_fchflags:
1000                         case SYS_lchflags:
1001                                 print_number(ip, narg, c);
1002                                 putchar(',');
1003                                 decode_fileflags(*ip);
1004                                 ip++;
1005                                 narg--;
1006                                 break;
1007                         case SYS_kill:
1008                                 print_number(ip, narg, c);
1009                                 putchar(',');
1010                                 print_signal(*ip);
1011                                 ip++;
1012                                 narg--;
1013                                 break;
1014                         case SYS_reboot:
1015                                 putchar('(');
1016                                 print_mask_arg(sysdecode_reboot_howto, *ip);
1017                                 ip++;
1018                                 narg--;
1019                                 break;
1020                         case SYS_umask:
1021                                 putchar('(');
1022                                 decode_filemode(*ip);
1023                                 ip++;
1024                                 narg--;
1025                                 break;
1026                         case SYS_msync:
1027                                 print_number(ip, narg, c);
1028                                 print_number(ip, narg, c);
1029                                 putchar(',');
1030                                 print_mask_arg(sysdecode_msync_flags, *ip);
1031                                 ip++;
1032                                 narg--;
1033                                 break;
1034 #ifdef SYS_freebsd6_mmap
1035                         case SYS_freebsd6_mmap:
1036                                 print_number(ip, narg, c);
1037                                 print_number(ip, narg, c);
1038                                 putchar(',');
1039                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1040                                 putchar(',');
1041                                 ip++;
1042                                 narg--;
1043                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1044                                 ip++;
1045                                 narg--;
1046                                 break;
1047 #endif
1048                         case SYS_mmap:
1049                                 print_number(ip, narg, c);
1050                                 print_number(ip, narg, c);
1051                                 putchar(',');
1052                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1053                                 putchar(',');
1054                                 ip++;
1055                                 narg--;
1056                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1057                                 ip++;
1058                                 narg--;
1059                                 break;
1060                         case SYS_mprotect:
1061                                 print_number(ip, narg, c);
1062                                 print_number(ip, narg, c);
1063                                 putchar(',');
1064                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1065                                 ip++;
1066                                 narg--;
1067                                 break;
1068                         case SYS_madvise:
1069                                 print_number(ip, narg, c);
1070                                 print_number(ip, narg, c);
1071                                 putchar(',');
1072                                 print_integer_arg(sysdecode_madvice, *ip);
1073                                 ip++;
1074                                 narg--;
1075                                 break;
1076                         case SYS_pathconf:
1077                         case SYS_lpathconf:
1078                         case SYS_fpathconf:
1079                                 print_number(ip, narg, c);
1080                                 putchar(',');
1081                                 print_integer_arg(sysdecode_pathconf_name, *ip);
1082                                 ip++;
1083                                 narg--;
1084                                 break;
1085                         case SYS_getpriority:
1086                         case SYS_setpriority:
1087                                 putchar('(');
1088                                 print_integer_arg(sysdecode_prio_which, *ip);
1089                                 c = ',';
1090                                 ip++;
1091                                 narg--;
1092                                 break;
1093                         case SYS_fcntl:
1094                                 print_number(ip, narg, c);
1095                                 putchar(',');
1096                                 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1097                                 if (sysdecode_fcntl_arg_p(ip[0])) {
1098                                         putchar(',');
1099                                         if (ip[0] == F_SETFL)
1100                                                 print_mask_arg(
1101                                                     sysdecode_fcntl_fileflags,
1102                                                         ip[1]);
1103                                         else
1104                                                 sysdecode_fcntl_arg(stdout,
1105                                                     ip[0], ip[1],
1106                                                     decimal ? 10 : 16);
1107                                 }
1108                                 ip += 2;
1109                                 narg -= 2;
1110                                 break;
1111                         case SYS_socket: {
1112                                 int sockdomain;
1113                                 putchar('(');
1114                                 sockdomain = *ip;
1115                                 print_integer_arg(sysdecode_socketdomain,
1116                                     sockdomain);
1117                                 ip++;
1118                                 narg--;
1119                                 putchar(',');
1120                                 print_mask_arg(sysdecode_socket_type, *ip);
1121                                 ip++;
1122                                 narg--;
1123                                 if (sockdomain == PF_INET ||
1124                                     sockdomain == PF_INET6) {
1125                                         putchar(',');
1126                                         print_integer_arg(sysdecode_ipproto,
1127                                             *ip);
1128                                         ip++;
1129                                         narg--;
1130                                 }
1131                                 c = ',';
1132                                 break;
1133                         }
1134                         case SYS_setsockopt:
1135                         case SYS_getsockopt: {
1136                                 const char *str;
1137
1138                                 print_number(ip, narg, c);
1139                                 putchar(',');
1140                                 print_integer_arg_valid(sysdecode_sockopt_level,
1141                                     *ip);
1142                                 str = sysdecode_sockopt_name(ip[0], ip[1]);
1143                                 if (str != NULL) {
1144                                         printf(",%s", str);
1145                                         ip++;
1146                                         narg--;
1147                                 }
1148                                 ip++;
1149                                 narg--;
1150                                 break;
1151                         }
1152 #ifdef SYS_freebsd6_lseek
1153                         case SYS_freebsd6_lseek:
1154                                 print_number(ip, narg, c);
1155                                 /* Hidden 'pad' argument, not in lseek(2) */
1156                                 print_number(ip, narg, c);
1157                                 print_number64(first, ip, narg, c);
1158                                 putchar(',');
1159                                 print_integer_arg(sysdecode_whence, *ip);
1160                                 ip++;
1161                                 narg--;
1162                                 break;
1163 #endif
1164                         case SYS_lseek:
1165                                 print_number(ip, narg, c);
1166                                 print_number64(first, ip, narg, c);
1167                                 putchar(',');
1168                                 print_integer_arg(sysdecode_whence, *ip);
1169                                 ip++;
1170                                 narg--;
1171                                 break;
1172                         case SYS_flock:
1173                                 print_number(ip, narg, c);
1174                                 putchar(',');
1175                                 print_mask_arg(sysdecode_flock_operation, *ip);
1176                                 ip++;
1177                                 narg--;
1178                                 break;
1179                         case SYS_mkfifo:
1180                         case SYS_mkfifoat:
1181                         case SYS_mkdir:
1182                         case SYS_mkdirat:
1183                                 print_number(ip, narg, c);
1184                                 putchar(',');
1185                                 decode_filemode(*ip);
1186                                 ip++;
1187                                 narg--;
1188                                 break;
1189                         case SYS_shutdown:
1190                                 print_number(ip, narg, c);
1191                                 putchar(',');
1192                                 print_integer_arg(sysdecode_shutdown_how, *ip);
1193                                 ip++;
1194                                 narg--;
1195                                 break;
1196                         case SYS_socketpair:
1197                                 putchar('(');
1198                                 print_integer_arg(sysdecode_socketdomain, *ip);
1199                                 ip++;
1200                                 narg--;
1201                                 putchar(',');
1202                                 print_mask_arg(sysdecode_socket_type, *ip);
1203                                 ip++;
1204                                 narg--;
1205                                 c = ',';
1206                                 break;
1207                         case SYS_getrlimit:
1208                         case SYS_setrlimit:
1209                                 putchar('(');
1210                                 print_integer_arg(sysdecode_rlimit, *ip);
1211                                 ip++;
1212                                 narg--;
1213                                 c = ',';
1214                                 break;
1215                         case SYS_getrusage:
1216                                 putchar('(');
1217                                 print_integer_arg(sysdecode_getrusage_who, *ip);
1218                                 ip++;
1219                                 narg--;
1220                                 c = ',';
1221                                 break;
1222                         case SYS_quotactl:
1223                                 print_number(ip, narg, c);
1224                                 putchar(',');
1225                                 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1226                                         if (decimal)
1227                                                 printf("<invalid=%d>", (int)*ip);
1228                                         else
1229                                                 printf("<invalid=%#x>",
1230                                                     (int)*ip);
1231                                 }
1232                                 ip++;
1233                                 narg--;
1234                                 c = ',';
1235                                 break;
1236                         case SYS_nfssvc:
1237                                 putchar('(');
1238                                 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1239                                 ip++;
1240                                 narg--;
1241                                 c = ',';
1242                                 break;
1243                         case SYS_rtprio:
1244                         case SYS_rtprio_thread:
1245                                 putchar('(');
1246                                 print_integer_arg(sysdecode_rtprio_function,
1247                                     *ip);
1248                                 ip++;
1249                                 narg--;
1250                                 c = ',';
1251                                 break;
1252                         case SYS___semctl:
1253                                 print_number(ip, narg, c);
1254                                 print_number(ip, narg, c);
1255                                 putchar(',');
1256                                 print_integer_arg(sysdecode_semctl_cmd, *ip);
1257                                 ip++;
1258                                 narg--;
1259                                 break;
1260                         case SYS_semget:
1261                                 print_number(ip, narg, c);
1262                                 print_number(ip, narg, c);
1263                                 putchar(',');
1264                                 print_mask_arg(sysdecode_semget_flags, *ip);
1265                                 ip++;
1266                                 narg--;
1267                                 break;
1268                         case SYS_msgctl:
1269                                 print_number(ip, narg, c);
1270                                 putchar(',');
1271                                 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1272                                 ip++;
1273                                 narg--;
1274                                 break;
1275                         case SYS_shmat:
1276                                 print_number(ip, narg, c);
1277                                 print_number(ip, narg, c);
1278                                 putchar(',');
1279                                 print_mask_arg(sysdecode_shmat_flags, *ip);
1280                                 ip++;
1281                                 narg--;
1282                                 break;
1283                         case SYS_shmctl:
1284                                 print_number(ip, narg, c);
1285                                 putchar(',');
1286                                 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1287                                 ip++;
1288                                 narg--;
1289                                 break;
1290                         case SYS_shm_open:
1291                                 print_number(ip, narg, c);
1292                                 putchar(',');
1293                                 print_mask_arg(sysdecode_open_flags, ip[0]);
1294                                 putchar(',');
1295                                 decode_filemode(ip[1]);
1296                                 ip += 2;
1297                                 narg -= 2;
1298                                 break;
1299                         case SYS_minherit:
1300                                 print_number(ip, narg, c);
1301                                 print_number(ip, narg, c);
1302                                 putchar(',');
1303                                 print_integer_arg(sysdecode_minherit_inherit,
1304                                     *ip);
1305                                 ip++;
1306                                 narg--;
1307                                 break;
1308                         case SYS_rfork:
1309                                 putchar('(');
1310                                 print_mask_arg(sysdecode_rfork_flags, *ip);
1311                                 ip++;
1312                                 narg--;
1313                                 c = ',';
1314                                 break;
1315                         case SYS_lio_listio:
1316                                 putchar('(');
1317                                 print_integer_arg(sysdecode_lio_listio_mode,
1318                                     *ip);
1319                                 ip++;
1320                                 narg--;
1321                                 c = ',';
1322                                 break;
1323                         case SYS_mlockall:
1324                                 putchar('(');
1325                                 print_mask_arg(sysdecode_mlockall_flags, *ip);
1326                                 ip++;
1327                                 narg--;
1328                                 break;
1329                         case SYS_sched_setscheduler:
1330                                 print_number(ip, narg, c);
1331                                 putchar(',');
1332                                 print_integer_arg(sysdecode_scheduler_policy,
1333                                     *ip);
1334                                 ip++;
1335                                 narg--;
1336                                 break;
1337                         case SYS_sched_get_priority_max:
1338                         case SYS_sched_get_priority_min:
1339                                 putchar('(');
1340                                 print_integer_arg(sysdecode_scheduler_policy,
1341                                     *ip);
1342                                 ip++;
1343                                 narg--;
1344                                 break;
1345                         case SYS_sendfile:
1346                                 print_number(ip, narg, c);
1347                                 print_number(ip, narg, c);
1348                                 print_number(ip, narg, c);
1349                                 print_number(ip, narg, c);
1350                                 print_number(ip, narg, c);
1351                                 print_number(ip, narg, c);
1352                                 putchar(',');
1353                                 print_mask_arg(sysdecode_sendfile_flags, *ip);
1354                                 ip++;
1355                                 narg--;
1356                                 break;
1357                         case SYS_kldsym:
1358                                 print_number(ip, narg, c);
1359                                 putchar(',');
1360                                 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1361                                 ip++;
1362                                 narg--;
1363                                 break;
1364                         case SYS_sigprocmask:
1365                                 putchar('(');
1366                                 print_integer_arg(sysdecode_sigprocmask_how,
1367                                     *ip);
1368                                 ip++;
1369                                 narg--;
1370                                 c = ',';
1371                                 break;
1372                         case SYS___acl_get_file:
1373                         case SYS___acl_set_file:
1374                         case SYS___acl_get_fd:
1375                         case SYS___acl_set_fd:
1376                         case SYS___acl_delete_file:
1377                         case SYS___acl_delete_fd:
1378                         case SYS___acl_aclcheck_file:
1379                         case SYS___acl_aclcheck_fd:
1380                         case SYS___acl_get_link:
1381                         case SYS___acl_set_link:
1382                         case SYS___acl_delete_link:
1383                         case SYS___acl_aclcheck_link:
1384                                 print_number(ip, narg, c);
1385                                 putchar(',');
1386                                 print_integer_arg(sysdecode_acltype, *ip);
1387                                 ip++;
1388                                 narg--;
1389                                 break;
1390                         case SYS_sigaction:
1391                                 putchar('(');
1392                                 print_signal(*ip);
1393                                 ip++;
1394                                 narg--;
1395                                 c = ',';
1396                                 break;
1397                         case SYS_extattrctl:
1398                                 print_number(ip, narg, c);
1399                                 putchar(',');
1400                                 print_integer_arg(sysdecode_extattrnamespace,
1401                                     *ip);
1402                                 ip++;
1403                                 narg--;
1404                                 break;
1405                         case SYS_nmount:
1406                                 print_number(ip, narg, c);
1407                                 print_number(ip, narg, c);
1408                                 putchar(',');
1409                                 print_mask_arg(sysdecode_mount_flags, *ip);
1410                                 ip++;
1411                                 narg--;
1412                                 break;
1413                         case SYS_thr_create:
1414                                 print_number(ip, narg, c);
1415                                 print_number(ip, narg, c);
1416                                 putchar(',');
1417                                 print_mask_arg(sysdecode_thr_create_flags, *ip);
1418                                 ip++;
1419                                 narg--;
1420                                 break;
1421                         case SYS_thr_kill:
1422                                 print_number(ip, narg, c);
1423                                 putchar(',');
1424                                 print_signal(*ip);
1425                                 ip++;
1426                                 narg--;
1427                                 break;
1428                         case SYS_kldunloadf:
1429                                 print_number(ip, narg, c);
1430                                 putchar(',');
1431                                 print_integer_arg(sysdecode_kldunload_flags,
1432                                     *ip);
1433                                 ip++;
1434                                 narg--;
1435                                 break;
1436                         case SYS_linkat:
1437                         case SYS_renameat:
1438                         case SYS_symlinkat:
1439                                 print_number(ip, narg, c);
1440                                 putchar(',');
1441                                 print_integer_arg_valid(sysdecode_atfd, *ip);
1442                                 ip++;
1443                                 narg--;
1444                                 print_number(ip, narg, c);
1445                                 break;
1446                         case SYS_cap_fcntls_limit:
1447                                 print_number(ip, narg, c);
1448                                 putchar(',');
1449                                 arg = *ip;
1450                                 ip++;
1451                                 narg--;
1452                                 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1453                                 break;
1454                         case SYS_posix_fadvise:
1455                                 print_number(ip, narg, c);
1456                                 print_number(ip, narg, c);
1457                                 print_number(ip, narg, c);
1458                                 (void)putchar(',');
1459                                 print_integer_arg(sysdecode_fadvice, *ip);
1460                                 ip++;
1461                                 narg--;
1462                                 break;
1463                         case SYS_procctl:
1464                                 putchar('(');
1465                                 print_integer_arg(sysdecode_idtype, *ip);
1466                                 c = ',';
1467                                 ip++;
1468                                 narg--;
1469                                 print_number64(first, ip, narg, c);
1470                                 putchar(',');
1471                                 print_integer_arg(sysdecode_procctl_cmd, *ip);
1472                                 ip++;
1473                                 narg--;
1474                                 break;
1475                         case SYS__umtx_op:
1476                                 print_number(ip, narg, c);
1477                                 putchar(',');
1478                                 print_integer_arg(sysdecode_umtx_op, *ip);
1479                                 switch (*ip) {
1480                                 case UMTX_OP_CV_WAIT:
1481                                         ip++;
1482                                         narg--;
1483                                         putchar(',');
1484                                         print_mask_argul(
1485                                             sysdecode_umtx_cvwait_flags, *ip);
1486                                         break;
1487                                 case UMTX_OP_RW_RDLOCK:
1488                                         ip++;
1489                                         narg--;
1490                                         putchar(',');
1491                                         print_mask_argul(
1492                                             sysdecode_umtx_rwlock_flags, *ip);
1493                                         break;
1494                                 }
1495                                 ip++;
1496                                 narg--;
1497                                 break;
1498                         case SYS_ftruncate:
1499                         case SYS_truncate:
1500                                 print_number(ip, narg, c);
1501                                 print_number64(first, ip, narg, c);
1502                                 break;
1503                         case SYS_fchownat:
1504                                 print_number(ip, narg, c);
1505                                 print_number(ip, narg, c);
1506                                 print_number(ip, narg, c);
1507                                 break;
1508                         case SYS_fstatat:
1509                         case SYS_utimensat:
1510                                 print_number(ip, narg, c);
1511                                 print_number(ip, narg, c);
1512                                 break;
1513                         case SYS_unlinkat:
1514                                 print_number(ip, narg, c);
1515                                 break;
1516                         case SYS_sysarch:
1517                                 putchar('(');
1518                                 print_integer_arg(sysdecode_sysarch_number, *ip);
1519                                 ip++;
1520                                 narg--;
1521                                 c = ',';
1522                                 break;
1523                         }
1524                         switch (ktr->ktr_code) {
1525                         case SYS_chflagsat:
1526                         case SYS_fchownat:
1527                         case SYS_faccessat:
1528                         case SYS_fchmodat:
1529                         case SYS_fstatat:
1530                         case SYS_linkat:
1531                         case SYS_unlinkat:
1532                         case SYS_utimensat:
1533                                 putchar(',');
1534                                 print_mask_arg0(sysdecode_atflags, *ip);
1535                                 ip++;
1536                                 narg--;
1537                                 break;
1538                         }
1539                 }
1540                 while (narg > 0) {
1541                         print_number(ip, narg, c);
1542                 }
1543                 putchar(')');
1544         }
1545         putchar('\n');
1546 }
1547
1548 void
1549 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1550 {
1551         register_t ret = ktr->ktr_retval;
1552         int error = ktr->ktr_error;
1553
1554         syscallname(ktr->ktr_code, sv_flags);
1555         printf(" ");
1556
1557         if (error == 0) {
1558                 if (fancy) {
1559                         printf("%ld", (long)ret);
1560                         if (ret < 0 || ret > 9)
1561                                 printf("/%#lx", (unsigned long)ret);
1562                 } else {
1563                         if (decimal)
1564                                 printf("%ld", (long)ret);
1565                         else
1566                                 printf("%#lx", (unsigned long)ret);
1567                 }
1568         } else if (error == ERESTART)
1569                 printf("RESTART");
1570         else if (error == EJUSTRETURN)
1571                 printf("JUSTRETURN");
1572         else {
1573                 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1574                     syscallabi(sv_flags), error));
1575                 if (fancy)
1576                         printf(" %s", strerror(ktr->ktr_error));
1577         }
1578         putchar('\n');
1579 }
1580
1581 void
1582 ktrnamei(char *cp, int len)
1583 {
1584         printf("\"%.*s\"\n", len, cp);
1585 }
1586
1587 void
1588 hexdump(char *p, int len, int screenwidth)
1589 {
1590         int n, i;
1591         int width;
1592
1593         width = 0;
1594         do {
1595                 width += 2;
1596                 i = 13;                 /* base offset */
1597                 i += (width / 2) + 1;   /* spaces every second byte */
1598                 i += (width * 2);       /* width of bytes */
1599                 i += 3;                 /* "  |" */
1600                 i += width;             /* each byte */
1601                 i += 1;                 /* "|" */
1602         } while (i < screenwidth);
1603         width -= 2;
1604
1605         for (n = 0; n < len; n += width) {
1606                 for (i = n; i < n + width; i++) {
1607                         if ((i % width) == 0) { /* beginning of line */
1608                                 printf("       0x%04x", i);
1609                         }
1610                         if ((i % 2) == 0) {
1611                                 printf(" ");
1612                         }
1613                         if (i < len)
1614                                 printf("%02x", p[i] & 0xff);
1615                         else
1616                                 printf("  ");
1617                 }
1618                 printf("  |");
1619                 for (i = n; i < n + width; i++) {
1620                         if (i >= len)
1621                                 break;
1622                         if (p[i] >= ' ' && p[i] <= '~')
1623                                 printf("%c", p[i]);
1624                         else
1625                                 printf(".");
1626                 }
1627                 printf("|\n");
1628         }
1629         if ((i % width) != 0)
1630                 printf("\n");
1631 }
1632
1633 void
1634 visdump(char *dp, int datalen, int screenwidth)
1635 {
1636         int col = 0;
1637         char *cp;
1638         int width;
1639         char visbuf[5];
1640
1641         printf("       \"");
1642         col = 8;
1643         for (;datalen > 0; datalen--, dp++) {
1644                  vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1645                 cp = visbuf;
1646                 /*
1647                  * Keep track of printables and
1648                  * space chars (like fold(1)).
1649                  */
1650                 if (col == 0) {
1651                         putchar('\t');
1652                         col = 8;
1653                 }
1654                 switch(*cp) {
1655                 case '\n':
1656                         col = 0;
1657                         putchar('\n');
1658                         continue;
1659                 case '\t':
1660                         width = 8 - (col&07);
1661                         break;
1662                 default:
1663                         width = strlen(cp);
1664                 }
1665                 if (col + width > (screenwidth-2)) {
1666                         printf("\\\n\t");
1667                         col = 8;
1668                 }
1669                 col += width;
1670                 do {
1671                         putchar(*cp++);
1672                 } while (*cp);
1673         }
1674         if (col == 0)
1675                 printf("       ");
1676         printf("\"\n");
1677 }
1678
1679 void
1680 ktrgenio(struct ktr_genio *ktr, int len)
1681 {
1682         int datalen = len - sizeof (struct ktr_genio);
1683         char *dp = (char *)ktr + sizeof (struct ktr_genio);
1684         static int screenwidth = 0;
1685         int i, binary;
1686
1687         printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1688                 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1689                 datalen == 1 ? "" : "s");
1690         if (suppressdata)
1691                 return;
1692         if (screenwidth == 0) {
1693                 struct winsize ws;
1694
1695                 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1696                     ws.ws_col > 8)
1697                         screenwidth = ws.ws_col;
1698                 else
1699                         screenwidth = 80;
1700         }
1701         if (maxdata && datalen > maxdata)
1702                 datalen = maxdata;
1703
1704         for (i = 0, binary = 0; i < datalen && binary == 0; i++)  {
1705                 if (dp[i] >= 32 && dp[i] < 127)
1706                         continue;
1707                 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1708                         continue;
1709                 binary = 1;
1710         }
1711         if (binary)
1712                 hexdump(dp, datalen, screenwidth);
1713         else
1714                 visdump(dp, datalen, screenwidth);
1715 }
1716
1717 void
1718 ktrpsig(struct ktr_psig *psig)
1719 {
1720         const char *str;
1721
1722         print_signal(psig->signo);
1723         if (psig->action == SIG_DFL) {
1724                 printf(" SIG_DFL");
1725         } else {
1726                 printf(" caught handler=0x%lx mask=0x%x",
1727                     (u_long)psig->action, psig->mask.__bits[0]);
1728         }
1729         printf(" code=");
1730         str = sysdecode_sigcode(psig->signo, psig->code);
1731         if (str != NULL)
1732                 printf("%s", str);
1733         else
1734                 printf("<invalid=%#x>", psig->code);
1735         putchar('\n');
1736 }
1737
1738 void
1739 ktrcsw_old(struct ktr_csw_old *cs)
1740 {
1741         printf("%s %s\n", cs->out ? "stop" : "resume",
1742                 cs->user ? "user" : "kernel");
1743 }
1744
1745 void
1746 ktrcsw(struct ktr_csw *cs)
1747 {
1748         printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1749             cs->user ? "user" : "kernel", cs->wmesg);
1750 }
1751
1752 void
1753 ktruser(int len, void *p)
1754 {
1755         unsigned char *cp;
1756
1757         if (sysdecode_utrace(stdout, p, len)) {
1758                 printf("\n");
1759                 return;
1760         }
1761
1762         printf("%d ", len);
1763         cp = p;
1764         while (len--)
1765                 if (decimal)
1766                         printf(" %d", *cp++);
1767                 else
1768                         printf(" %02x", *cp++);
1769         printf("\n");
1770 }
1771
1772 void
1773 ktrcaprights(cap_rights_t *rightsp)
1774 {
1775
1776         printf("cap_rights_t ");
1777         sysdecode_cap_rights(stdout, rightsp);
1778         printf("\n");
1779 }
1780
1781 static void
1782 ktrtimeval(struct timeval *tv)
1783 {
1784
1785         printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1786 }
1787
1788 void
1789 ktritimerval(struct itimerval *it)
1790 {
1791
1792         printf("itimerval { .interval = ");
1793         ktrtimeval(&it->it_interval);
1794         printf(", .value = ");
1795         ktrtimeval(&it->it_value);
1796         printf(" }\n");
1797 }
1798
1799 void
1800 ktrsockaddr(struct sockaddr *sa)
1801 {
1802 /*
1803  TODO: Support additional address families
1804         #include <netsmb/netbios.h>
1805         struct sockaddr_nb      *nb;
1806 */
1807         const char *str;
1808         char addr[64];
1809
1810         /*
1811          * note: ktrstruct() has already verified that sa points to a
1812          * buffer at least sizeof(struct sockaddr) bytes long and exactly
1813          * sa->sa_len bytes long.
1814          */
1815         printf("struct sockaddr { ");
1816         str = sysdecode_sockaddr_family(sa->sa_family);
1817         if (str != NULL)
1818                 printf("%s", str);
1819         else
1820                 printf("<invalid=%d>", sa->sa_family);
1821         printf(", ");
1822
1823 #define check_sockaddr_len(n)                                   \
1824         if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) {  \
1825                 printf("invalid");                              \
1826                 break;                                          \
1827         }
1828
1829         switch(sa->sa_family) {
1830         case AF_INET: {
1831                 struct sockaddr_in sa_in;
1832
1833                 memset(&sa_in, 0, sizeof(sa_in));
1834                 memcpy(&sa_in, sa, sa->sa_len);
1835                 check_sockaddr_len(in);
1836                 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1837                 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1838                 break;
1839         }
1840         case AF_INET6: {
1841                 struct sockaddr_in6 sa_in6;
1842
1843                 memset(&sa_in6, 0, sizeof(sa_in6));
1844                 memcpy(&sa_in6, sa, sa->sa_len);
1845                 check_sockaddr_len(in6);
1846                 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1847                     addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1848                 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1849                 break;
1850         }
1851         case AF_UNIX: {
1852                 struct sockaddr_un sa_un;
1853
1854                 memset(&sa_un, 0, sizeof(sa_un));
1855                 memcpy(&sa_un, sa, sa->sa_len);
1856                 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1857                 break;
1858         }
1859         default:
1860                 printf("unknown address family");
1861         }
1862         printf(" }\n");
1863 }
1864
1865 void
1866 ktrstat(struct stat *statp)
1867 {
1868         char mode[12], timestr[PATH_MAX + 4];
1869         struct passwd *pwd;
1870         struct group  *grp;
1871         struct tm *tm;
1872
1873         /*
1874          * note: ktrstruct() has already verified that statp points to a
1875          * buffer exactly sizeof(struct stat) bytes long.
1876          */
1877         printf("struct stat {");
1878         printf("dev=%ju, ino=%ju, ",
1879                 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1880         if (resolv == 0)
1881                 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1882         else {
1883                 strmode(statp->st_mode, mode);
1884                 printf("mode=%s, ", mode);
1885         }
1886         printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1887         if (resolv == 0) {
1888                 pwd = NULL;
1889         } else {
1890 #ifdef WITH_CASPER
1891                 if (cappwd != NULL)
1892                         pwd = cap_getpwuid(cappwd, statp->st_uid);
1893                 else
1894 #endif
1895                         pwd = getpwuid(statp->st_uid);
1896         }
1897         if (pwd == NULL)
1898                 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1899         else
1900                 printf("uid=\"%s\", ", pwd->pw_name);
1901         if (resolv == 0) {
1902                 grp = NULL;
1903         } else {
1904 #ifdef WITH_CASPER
1905                 if (capgrp != NULL)
1906                         grp = cap_getgrgid(capgrp, statp->st_gid);
1907                 else
1908 #endif
1909                         grp = getgrgid(statp->st_gid);
1910         }
1911         if (grp == NULL)
1912                 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1913         else
1914                 printf("gid=\"%s\", ", grp->gr_name);
1915         printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1916         printf("atime=");
1917         if (resolv == 0)
1918                 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1919         else {
1920                 tm = localtime(&statp->st_atim.tv_sec);
1921                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1922                 printf("\"%s\"", timestr);
1923         }
1924         if (statp->st_atim.tv_nsec != 0)
1925                 printf(".%09ld, ", statp->st_atim.tv_nsec);
1926         else
1927                 printf(", ");
1928         printf("mtime=");
1929         if (resolv == 0)
1930                 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1931         else {
1932                 tm = localtime(&statp->st_mtim.tv_sec);
1933                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1934                 printf("\"%s\"", timestr);
1935         }
1936         if (statp->st_mtim.tv_nsec != 0)
1937                 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1938         else
1939                 printf(", ");
1940         printf("ctime=");
1941         if (resolv == 0)
1942                 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1943         else {
1944                 tm = localtime(&statp->st_ctim.tv_sec);
1945                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1946                 printf("\"%s\"", timestr);
1947         }
1948         if (statp->st_ctim.tv_nsec != 0)
1949                 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1950         else
1951                 printf(", ");
1952         printf("birthtime=");
1953         if (resolv == 0)
1954                 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1955         else {
1956                 tm = localtime(&statp->st_birthtim.tv_sec);
1957                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1958                 printf("\"%s\"", timestr);
1959         }
1960         if (statp->st_birthtim.tv_nsec != 0)
1961                 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1962         else
1963                 printf(", ");
1964         printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1965                 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1966                 (intmax_t)statp->st_blocks, statp->st_flags);
1967         printf(" }\n");
1968 }
1969
1970 void
1971 ktrstruct(char *buf, size_t buflen)
1972 {
1973         char *name, *data;
1974         size_t namelen, datalen;
1975         int i;
1976         cap_rights_t rights;
1977         struct itimerval it;
1978         struct stat sb;
1979         struct sockaddr_storage ss;
1980
1981         for (name = buf, namelen = 0;
1982              namelen < buflen && name[namelen] != '\0';
1983              ++namelen)
1984                 /* nothing */;
1985         if (namelen == buflen)
1986                 goto invalid;
1987         if (name[namelen] != '\0')
1988                 goto invalid;
1989         data = buf + namelen + 1;
1990         datalen = buflen - namelen - 1;
1991         if (datalen == 0)
1992                 goto invalid;
1993         /* sanity check */
1994         for (i = 0; i < (int)namelen; ++i)
1995                 if (!isalpha(name[i]))
1996                         goto invalid;
1997         if (strcmp(name, "caprights") == 0) {
1998                 if (datalen != sizeof(cap_rights_t))
1999                         goto invalid;
2000                 memcpy(&rights, data, datalen);
2001                 ktrcaprights(&rights);
2002         } else if (strcmp(name, "itimerval") == 0) {
2003                 if (datalen != sizeof(struct itimerval))
2004                         goto invalid;
2005                 memcpy(&it, data, datalen);
2006                 ktritimerval(&it);
2007         } else if (strcmp(name, "stat") == 0) {
2008                 if (datalen != sizeof(struct stat))
2009                         goto invalid;
2010                 memcpy(&sb, data, datalen);
2011                 ktrstat(&sb);
2012         } else if (strcmp(name, "sockaddr") == 0) {
2013                 if (datalen > sizeof(ss))
2014                         goto invalid;
2015                 memcpy(&ss, data, datalen);
2016                 if (datalen != ss.ss_len)
2017                         goto invalid;
2018                 ktrsockaddr((struct sockaddr *)&ss);
2019         } else {
2020                 printf("unknown structure\n");
2021         }
2022         return;
2023 invalid:
2024         printf("invalid record\n");
2025 }
2026
2027 void
2028 ktrcapfail(struct ktr_cap_fail *ktr)
2029 {
2030         switch (ktr->cap_type) {
2031         case CAPFAIL_NOTCAPABLE:
2032                 /* operation on fd with insufficient capabilities */
2033                 printf("operation requires ");
2034                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2035                 printf(", descriptor holds ");
2036                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2037                 break;
2038         case CAPFAIL_INCREASE:
2039                 /* requested more capabilities than fd already has */
2040                 printf("attempt to increase capabilities from ");
2041                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2042                 printf(" to ");
2043                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2044                 break;
2045         case CAPFAIL_SYSCALL:
2046                 /* called restricted syscall */
2047                 printf("disallowed system call");
2048                 break;
2049         case CAPFAIL_LOOKUP:
2050                 /* used ".." in strict-relative mode */
2051                 printf("restricted VFS lookup");
2052                 break;
2053         default:
2054                 printf("unknown capability failure: ");
2055                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2056                 printf(" ");
2057                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2058                 break;
2059         }
2060         printf("\n");
2061 }
2062
2063 void
2064 ktrfault(struct ktr_fault *ktr)
2065 {
2066
2067         printf("0x%jx ", (uintmax_t)ktr->vaddr);
2068         print_mask_arg(sysdecode_vmprot, ktr->type);
2069         printf("\n");
2070 }
2071
2072 void
2073 ktrfaultend(struct ktr_faultend *ktr)
2074 {
2075         const char *str;
2076
2077         str = sysdecode_vmresult(ktr->result);
2078         if (str != NULL)
2079                 printf("%s", str);
2080         else
2081                 printf("<invalid=%d>", ktr->result);
2082         printf("\n");
2083 }
2084
2085 void
2086 ktrkevent(struct kevent *kev)
2087 {
2088
2089         printf("{ ident=");
2090         switch (kev->filter) {
2091         case EVFILT_READ:
2092         case EVFILT_WRITE:
2093         case EVFILT_VNODE:
2094         case EVFILT_PROC:
2095         case EVFILT_TIMER:
2096         case EVFILT_PROCDESC:
2097         case EVFILT_EMPTY:
2098                 printf("%ju", (uintmax_t)kev->ident);
2099                 break;
2100         case EVFILT_SIGNAL:
2101                 print_signal(kev->ident);
2102                 break;
2103         default:
2104                 printf("%p", (void *)kev->ident);
2105         }
2106         printf(", filter=");
2107         print_integer_arg(sysdecode_kevent_filter, kev->filter);
2108         printf(", flags=");
2109         print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2110         printf(", fflags=");
2111         sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2112             decimal ? 10 : 16);
2113         printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2114 }
2115
2116 void
2117 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2118 {
2119         struct kevent kev;
2120         char *name, *data;
2121         size_t namelen, datalen;
2122         int i;
2123         bool first;
2124
2125         buflen -= sizeof(*ksa);
2126         for (name = (char *)(ksa + 1), namelen = 0;
2127              namelen < buflen && name[namelen] != '\0';
2128              ++namelen)
2129                 /* nothing */;
2130         if (namelen == buflen)
2131                 goto invalid;
2132         if (name[namelen] != '\0')
2133                 goto invalid;
2134         /* sanity check */
2135         for (i = 0; i < (int)namelen; ++i)
2136                 if (!isalnum(name[i]) && name[i] != '_')
2137                         goto invalid;
2138         data = name + namelen + 1;
2139         datalen = buflen - namelen - 1;
2140         printf("struct %s[] = { ", name);
2141         first = true;
2142         for (; datalen >= ksa->struct_size;
2143             data += ksa->struct_size, datalen -= ksa->struct_size) {
2144                 if (!first)
2145                         printf("\n             ");
2146                 else
2147                         first = false;
2148                 if (strcmp(name, "kevent") == 0) {
2149                         if (ksa->struct_size != sizeof(kev))
2150                                 goto bad_size;
2151                         memcpy(&kev, data, sizeof(kev));
2152                         ktrkevent(&kev);
2153                 } else if (strcmp(name, "kevent_freebsd11") == 0) {
2154                         struct kevent_freebsd11 kev11;
2155
2156                         if (ksa->struct_size != sizeof(kev11))
2157                                 goto bad_size;
2158                         memcpy(&kev11, data, sizeof(kev11));
2159                         memset(&kev, 0, sizeof(kev));
2160                         kev.ident = kev11.ident;
2161                         kev.filter = kev11.filter;
2162                         kev.flags = kev11.flags;
2163                         kev.fflags = kev11.fflags;
2164                         kev.data = kev11.data;
2165                         kev.udata = kev11.udata;
2166                         ktrkevent(&kev);
2167 #ifdef _WANT_KEVENT32
2168                 } else if (strcmp(name, "kevent32") == 0) {
2169                         struct kevent32 kev32;
2170
2171                         if (ksa->struct_size != sizeof(kev32))
2172                                 goto bad_size;
2173                         memcpy(&kev32, data, sizeof(kev32));
2174                         memset(&kev, 0, sizeof(kev));
2175                         kev.ident = kev32.ident;
2176                         kev.filter = kev32.filter;
2177                         kev.flags = kev32.flags;
2178                         kev.fflags = kev32.fflags;
2179 #if BYTE_ORDER == BIG_ENDIAN
2180                         kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2181 #else
2182                         kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2183 #endif
2184                         kev.udata = (void *)(uintptr_t)kev32.udata;
2185                         ktrkevent(&kev);
2186                 } else if (strcmp(name, "kevent32_freebsd11") == 0) {
2187                         struct kevent32_freebsd11 kev32;
2188
2189                         if (ksa->struct_size != sizeof(kev32))
2190                                 goto bad_size;
2191                         memcpy(&kev32, data, sizeof(kev32));
2192                         memset(&kev, 0, sizeof(kev));
2193                         kev.ident = kev32.ident;
2194                         kev.filter = kev32.filter;
2195                         kev.flags = kev32.flags;
2196                         kev.fflags = kev32.fflags;
2197                         kev.data = kev32.data;
2198                         kev.udata = (void *)(uintptr_t)kev32.udata;
2199                         ktrkevent(&kev);
2200 #endif
2201                 } else {
2202                         printf("<unknown structure> }\n");
2203                         return;
2204                 }
2205         }
2206         printf(" }\n");
2207         return;
2208 invalid:
2209         printf("invalid record\n");
2210         return;
2211 bad_size:
2212         printf("<bad size> }\n");
2213         return;
2214 }
2215
2216 void
2217 usage(void)
2218 {
2219         fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2220             "[-m maxdata] [-p pid] [-t trstr]\n");
2221         exit(1);
2222 }