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