usr.bin/kdump/kdump.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 1988, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef lint
  33 static const char copyright[] =
  34 "@(#) Copyright (c) 1988, 1993\n\
  35         The Regents of the University of California.  All rights reserved.\n";
  36 #endif /* not lint */
  37
  38 #ifndef lint
  39 #if 0
  40 static char sccsid[] = "@(#)kdump.c     8.1 (Berkeley) 6/6/93";
  41 #endif
  42 #endif /* not lint */
  43 #include <sys/cdefs.h>
  44 __FBSDID("$FreeBSD$");
  45
  46 #define _WANT_KERNEL_ERRNO
  47 #ifdef __LP64__
  48 #define _WANT_KEVENT32
  49 #endif
  50 #define _WANT_FREEBSD11_KEVENT
  51 #include <sys/param.h>
  52 #include <sys/capsicum.h>
  53 #include <sys/errno.h>
  54 #include <sys/time.h>
  55 #include <sys/uio.h>
  56 #include <sys/event.h>
  57 #include <sys/ktrace.h>
  58 #include <sys/ioctl.h>
  59 #include <sys/socket.h>
  60 #include <sys/stat.h>
  61 #include <sys/sysent.h>
  62 #include <sys/umtx.h>
  63 #include <sys/un.h>
  64 #include <sys/queue.h>
  65 #include <sys/wait.h>
  66 #ifdef WITH_CASPER
  67 #include <sys/nv.h>
  68 #endif
  69 #include <arpa/inet.h>
  70 #include <netinet/in.h>
  71 #include <ctype.h>
  72 #include <capsicum_helpers.h>
  73 #include <err.h>
  74 #include <grp.h>
  75 #include <inttypes.h>
  76 #include <locale.h>
  77 #include <netdb.h>
  78 #include <nl_types.h>
  79 #include <pwd.h>
  80 #include <stddef.h>
  81 #include <stdio.h>
  82 #include <stdlib.h>
  83 #include <string.h>
  84 #include <sysdecode.h>
  85 #include <time.h>
  86 #include <unistd.h>
  87 #include <vis.h>
  88 #include "ktrace.h"
  89
  90 #ifdef WITH_CASPER
  91 #include <libcasper.h>
  92
  93 #include <casper/cap_grp.h>
  94 #include <casper/cap_pwd.h>
  95 #endif
  96
  97 u_int abidump(struct ktr_header *);
  98 int fetchprocinfo(struct ktr_header *, u_int *);
  99 int fread_tail(void *, int, int);
 100 void dumpheader(struct ktr_header *);
 101 void ktrsyscall(struct ktr_syscall *, u_int);
 102 void ktrsysret(struct ktr_sysret *, u_int);
 103 void ktrnamei(char *, int);
 104 void hexdump(char *, int, int);
 105 void visdump(char *, int, int);
 106 void ktrgenio(struct ktr_genio *, int);
 107 void ktrpsig(struct ktr_psig *);
 108 void ktrcsw(struct ktr_csw *);
 109 void ktrcsw_old(struct ktr_csw_old *);
 110 void ktruser(int, void *);
 111 void ktrcaprights(cap_rights_t *);
 112 void ktritimerval(struct itimerval *it);
 113 void ktrsockaddr(struct sockaddr *);
 114 void ktrstat(struct stat *);
 115 void ktrstruct(char *, size_t);
 116 void ktrcapfail(struct ktr_cap_fail *);
 117 void ktrfault(struct ktr_fault *);
 118 void ktrfaultend(struct ktr_faultend *);
 119 void ktrkevent(struct kevent *);
 120 void ktrstructarray(struct ktr_struct_array *, size_t);
 121 void usage(void);
 122
 123 #define TIMESTAMP_NONE          0x0
 124 #define TIMESTAMP_ABSOLUTE      0x1
 125 #define TIMESTAMP_ELAPSED       0x2
 126 #define TIMESTAMP_RELATIVE      0x4
 127
 128 static int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
 129     resolv = 0, abiflag = 0, syscallno = 0;
 130 static const char *tracefile = DEF_TRACEFILE;
 131 static struct ktr_header ktr_header;
 132
 133 #define TIME_FORMAT     "%b %e %T %Y"
 134 #define eqs(s1, s2)     (strcmp((s1), (s2)) == 0)
 135
 136 #define print_number64(first,i,n,c) do {                                \
 137         uint64_t __v;                                                   \
 138                                                                         \
 139         if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) {    \
 140                 (i)++;                                                  \
 141                 (n)--;                                                  \
 142         }                                                               \
 143         if (quad_slots == 2)                                            \
 144                 __v = (uint64_t)(uint32_t)(i)[0] |                      \
 145                     ((uint64_t)(uint32_t)(i)[1]) << 32;                 \
 146         else                                                            \
 147                 __v = (uint64_t)*(i);                                   \
 148         if (decimal)                                                    \
 149                 printf("%c%jd", (c), (intmax_t)__v);                    \
 150         else                                                            \
 151                 printf("%c%#jx", (c), (uintmax_t)__v);                  \
 152         (i) += quad_slots;                                              \
 153         (n) -= quad_slots;                                              \
 154         (c) = ',';                                                      \
 155 } while (0)
 156
 157 #define print_number(i,n,c) do {                                        \
 158         if (decimal)                                                    \
 159                 printf("%c%jd", c, (intmax_t)*i);                       \
 160         else                                                            \
 161                 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i);       \
 162         i++;                                                            \
 163         n--;                                                            \
 164         c = ',';                                                        \
 165 } while (0)
 166
 167 struct proc_info
 168 {
 169         TAILQ_ENTRY(proc_info)  info;
 170         u_int                   sv_flags;
 171         pid_t                   pid;
 172 };
 173
 174 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
 175
 176 #ifdef WITH_CASPER
 177 static cap_channel_t *cappwd, *capgrp;
 178
 179 static int
 180 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
 181 {
 182         cap_channel_t *capcas, *cappwdloc, *capgrploc;
 183         const char *cmds[1], *fields[1];
 184
 185         capcas = cap_init();
 186         if (capcas == NULL) {
 187                 err(1, "unable to create casper process");
 188                 exit(1);
 189         }
 190         cappwdloc = cap_service_open(capcas, "system.pwd");
 191         capgrploc = cap_service_open(capcas, "system.grp");
 192         /* Casper capability no longer needed. */
 193         cap_close(capcas);
 194         if (cappwdloc == NULL || capgrploc == NULL) {
 195                 if (cappwdloc == NULL)
 196                         warn("unable to open system.pwd service");
 197                 if (capgrploc == NULL)
 198                         warn("unable to open system.grp service");
 199                 exit(1);
 200         }
 201         /* Limit system.pwd to only getpwuid() function and pw_name field. */
 202         cmds[0] = "getpwuid";
 203         if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
 204                 err(1, "unable to limit system.pwd service");
 205         fields[0] = "pw_name";
 206         if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
 207                 err(1, "unable to limit system.pwd service");
 208         /* Limit system.grp to only getgrgid() function and gr_name field. */
 209         cmds[0] = "getgrgid";
 210         if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
 211                 err(1, "unable to limit system.grp service");
 212         fields[0] = "gr_name";
 213         if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
 214                 err(1, "unable to limit system.grp service");
 215
 216         *cappwdp = cappwdloc;
 217         *capgrpp = capgrploc;
 218         return (0);
 219 }
 220 #endif  /* WITH_CASPER */
 221
 222 static void
 223 print_integer_arg(const char *(*decoder)(int), int value)
 224 {
 225         const char *str;
 226
 227         str = decoder(value);
 228         if (str != NULL)
 229                 printf("%s", str);
 230         else {
 231                 if (decimal)
 232                         printf("<invalid=%d>", value);
 233                 else
 234                         printf("<invalid=%#x>", value);
 235         }
 236 }
 237
 238 /* Like print_integer_arg but unknown values are treated as valid. */
 239 static void
 240 print_integer_arg_valid(const char *(*decoder)(int), int value)
 241 {
 242         const char *str;
 243
 244         str = decoder(value);
 245         if (str != NULL)
 246                 printf("%s", str);
 247         else {
 248                 if (decimal)
 249                         printf("%d", value);
 250                 else
 251                         printf("%#x", value);
 252         }
 253 }
 254
 255 static void
 256 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
 257 {
 258         bool invalid;
 259         int rem;
 260
 261         printf("%#x<", value);
 262         invalid = !decoder(stdout, value, &rem);
 263         printf(">");
 264         if (invalid)
 265                 printf("<invalid>%u", rem);
 266 }
 267
 268 static void
 269 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
 270 {
 271         bool invalid;
 272         int rem;
 273
 274         if (value == 0) {
 275                 printf("0");
 276                 return;
 277         }
 278         printf("%#x<", value);
 279         invalid = !decoder(stdout, value, &rem);
 280         printf(">");
 281         if (invalid)
 282                 printf("<invalid>%u", rem);
 283 }
 284
 285 static void
 286 decode_fileflags(fflags_t value)
 287 {
 288         bool invalid;
 289         fflags_t rem;
 290
 291         if (value == 0) {
 292                 printf("0");
 293                 return;
 294         }
 295         printf("%#x<", value);
 296         invalid = !sysdecode_fileflags(stdout, value, &rem);
 297         printf(">");
 298         if (invalid)
 299                 printf("<invalid>%u", rem);
 300 }
 301
 302 static void
 303 decode_filemode(int value)
 304 {
 305         bool invalid;
 306         int rem;
 307
 308         if (value == 0) {
 309                 printf("0");
 310                 return;
 311         }
 312         printf("%#o<", value);
 313         invalid = !sysdecode_filemode(stdout, value, &rem);
 314         printf(">");
 315         if (invalid)
 316                 printf("<invalid>%u", rem);
 317 }
 318
 319 static void
 320 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
 321 {
 322         bool invalid;
 323         uint32_t rem;
 324
 325         printf("%#x<", value);
 326         invalid = !decoder(stdout, value, &rem);
 327         printf(">");
 328         if (invalid)
 329                 printf("<invalid>%u", rem);
 330 }
 331
 332 static void
 333 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
 334 {
 335         bool invalid;
 336         u_long rem;
 337
 338         if (value == 0) {
 339                 printf("0");
 340                 return;
 341         }
 342         printf("%#lx<", value);
 343         invalid = !decoder(stdout, value, &rem);
 344         printf(">");
 345         if (invalid)
 346                 printf("<invalid>%lu", rem);
 347 }
 348
 349 int
 350 main(int argc, char *argv[])
 351 {
 352         int ch, ktrlen, size;
 353         void *m;
 354         int trpoints = ALL_POINTS;
 355         int drop_logged;
 356         pid_t pid = 0;
 357         u_int sv_flags;
 358
 359         setlocale(LC_CTYPE, "");
 360
 361         timestamp = TIMESTAMP_NONE;
 362
 363         while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
 364                 switch (ch) {
 365                 case 'A':
 366                         abiflag = 1;
 367                         break;
 368                 case 'f':
 369                         tracefile = optarg;
 370                         break;
 371                 case 'd':
 372                         decimal = 1;
 373                         break;
 374                 case 'l':
 375                         tail = 1;
 376                         break;
 377                 case 'm':
 378                         maxdata = atoi(optarg);
 379                         break;
 380                 case 'n':
 381                         fancy = 0;
 382                         break;
 383                 case 'p':
 384                         pid = atoi(optarg);
 385                         break;
 386                 case 'r':
 387                         resolv = 1;
 388                         break;
 389                 case 'S':
 390                         syscallno = 1;
 391                         break;
 392                 case 's':
 393                         suppressdata = 1;
 394                         break;
 395                 case 'E':
 396                         timestamp |= TIMESTAMP_ELAPSED;
 397                         break;
 398                 case 'H':
 399                         threads = 1;
 400                         break;
 401                 case 'R':
 402                         timestamp |= TIMESTAMP_RELATIVE;
 403                         break;
 404                 case 'T':
 405                         timestamp |= TIMESTAMP_ABSOLUTE;
 406                         break;
 407                 case 't':
 408                         trpoints = getpoints(optarg);
 409                         if (trpoints < 0)
 410                                 errx(1, "unknown trace point in %s", optarg);
 411                         break;
 412                 default:
 413                         usage();
 414                 }
 415
 416         if (argc > optind)
 417                 usage();
 418
 419         m = malloc(size = 1025);
 420         if (m == NULL)
 421                 errx(1, "%s", strerror(ENOMEM));
 422         if (strcmp(tracefile, "-") != 0)
 423                 if (!freopen(tracefile, "r", stdin))
 424                         err(1, "%s", tracefile);
 425
 426         caph_cache_catpages();
 427         caph_cache_tzdata();
 428
 429 #ifdef WITH_CASPER
 430         if (resolv != 0) {
 431                 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
 432                         cappwd = NULL;
 433                         capgrp = NULL;
 434                 }
 435         }
 436         if (resolv == 0 || (cappwd != NULL && capgrp != NULL)) {
 437                 if (cap_enter() < 0 && errno != ENOSYS)
 438                         err(1, "unable to enter capability mode");
 439         }
 440 #else
 441         if (resolv == 0) {
 442                 if (cap_enter() < 0 && errno != ENOSYS)
 443                         err(1, "unable to enter capability mode");
 444         }
 445 #endif
 446         if (caph_limit_stdio() == -1)
 447                 err(1, "unable to limit stdio");
 448
 449         TAILQ_INIT(&trace_procs);
 450         drop_logged = 0;
 451         while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
 452                 if (ktr_header.ktr_type & KTR_DROP) {
 453                         ktr_header.ktr_type &= ~KTR_DROP;
 454                         if (!drop_logged && threads) {
 455                                 printf(
 456                                     "%6jd %6jd %-8.*s Events dropped.\n",
 457                                     (intmax_t)ktr_header.ktr_pid,
 458                                     ktr_header.ktr_tid > 0 ?
 459                                     (intmax_t)ktr_header.ktr_tid : 0,
 460                                     MAXCOMLEN, ktr_header.ktr_comm);
 461                                 drop_logged = 1;
 462                         } else if (!drop_logged) {
 463                                 printf("%6jd %-8.*s Events dropped.\n",
 464                                     (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
 465                                     ktr_header.ktr_comm);
 466                                 drop_logged = 1;
 467                         }
 468                 }
 469                 if (trpoints & (1<<ktr_header.ktr_type))
 470                         if (pid == 0 || ktr_header.ktr_pid == pid ||
 471                             ktr_header.ktr_tid == pid)
 472                                 dumpheader(&ktr_header);
 473                 if ((ktrlen = ktr_header.ktr_len) < 0)
 474                         errx(1, "bogus length 0x%x", ktrlen);
 475                 if (ktrlen > size) {
 476                         m = realloc(m, ktrlen+1);
 477                         if (m == NULL)
 478                                 errx(1, "%s", strerror(ENOMEM));
 479                         size = ktrlen;
 480                 }
 481                 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
 482                         errx(1, "data too short");
 483                 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
 484                         continue;
 485                 sv_flags = abidump(&ktr_header);
 486                 if (pid && ktr_header.ktr_pid != pid &&
 487                     ktr_header.ktr_tid != pid)
 488                         continue;
 489                 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
 490                         continue;
 491                 drop_logged = 0;
 492                 switch (ktr_header.ktr_type) {
 493                 case KTR_SYSCALL:
 494                         ktrsyscall((struct ktr_syscall *)m, sv_flags);
 495                         break;
 496                 case KTR_SYSRET:
 497                         ktrsysret((struct ktr_sysret *)m, sv_flags);
 498                         break;
 499                 case KTR_NAMEI:
 500                 case KTR_SYSCTL:
 501                         ktrnamei(m, ktrlen);
 502                         break;
 503                 case KTR_GENIO:
 504                         ktrgenio((struct ktr_genio *)m, ktrlen);
 505                         break;
 506                 case KTR_PSIG:
 507                         ktrpsig((struct ktr_psig *)m);
 508                         break;
 509                 case KTR_CSW:
 510                         if (ktrlen == sizeof(struct ktr_csw_old))
 511                                 ktrcsw_old((struct ktr_csw_old *)m);
 512                         else
 513                                 ktrcsw((struct ktr_csw *)m);
 514                         break;
 515                 case KTR_USER:
 516                         ktruser(ktrlen, m);
 517                         break;
 518                 case KTR_STRUCT:
 519                         ktrstruct(m, ktrlen);
 520                         break;
 521                 case KTR_CAPFAIL:
 522                         ktrcapfail((struct ktr_cap_fail *)m);
 523                         break;
 524                 case KTR_FAULT:
 525                         ktrfault((struct ktr_fault *)m);
 526                         break;
 527                 case KTR_FAULTEND:
 528                         ktrfaultend((struct ktr_faultend *)m);
 529                         break;
 530                 case KTR_STRUCT_ARRAY:
 531                         ktrstructarray((struct ktr_struct_array *)m, ktrlen);
 532                         break;
 533                 default:
 534                         printf("\n");
 535                         break;
 536                 }
 537                 if (tail)
 538                         fflush(stdout);
 539         }
 540         return 0;
 541 }
 542
 543 int
 544 fread_tail(void *buf, int size, int num)
 545 {
 546         int i;
 547
 548         while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
 549                 sleep(1);
 550                 clearerr(stdin);
 551         }
 552         return (i);
 553 }
 554
 555 int
 556 fetchprocinfo(struct ktr_header *kth, u_int *flags)
 557 {
 558         struct proc_info *pi;
 559
 560         switch (kth->ktr_type) {
 561         case KTR_PROCCTOR:
 562                 TAILQ_FOREACH(pi, &trace_procs, info) {
 563                         if (pi->pid == kth->ktr_pid) {
 564                                 TAILQ_REMOVE(&trace_procs, pi, info);
 565                                 break;
 566                         }
 567                 }
 568                 pi = malloc(sizeof(struct proc_info));
 569                 if (pi == NULL)
 570                         errx(1, "%s", strerror(ENOMEM));
 571                 pi->sv_flags = *flags;
 572                 pi->pid = kth->ktr_pid;
 573                 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
 574                 return (1);
 575
 576         case KTR_PROCDTOR:
 577                 TAILQ_FOREACH(pi, &trace_procs, info) {
 578                         if (pi->pid == kth->ktr_pid) {
 579                                 TAILQ_REMOVE(&trace_procs, pi, info);
 580                                 free(pi);
 581                                 break;
 582                         }
 583                 }
 584                 return (1);
 585         }
 586
 587         return (0);
 588 }
 589
 590 u_int
 591 abidump(struct ktr_header *kth)
 592 {
 593         struct proc_info *pi;
 594         const char *abi;
 595         const char *arch;
 596         u_int flags = 0;
 597
 598         TAILQ_FOREACH(pi, &trace_procs, info) {
 599                 if (pi->pid == kth->ktr_pid) {
 600                         flags = pi->sv_flags;
 601                         break;
 602                 }
 603         }
 604
 605         if (abiflag == 0)
 606                 return (flags);
 607
 608         switch (flags & SV_ABI_MASK) {
 609         case SV_ABI_LINUX:
 610                 abi = "L";
 611                 break;
 612         case SV_ABI_FREEBSD:
 613                 abi = "F";
 614                 break;
 615         case SV_ABI_CLOUDABI:
 616                 abi = "C";
 617                 break;
 618         default:
 619                 abi = "U";
 620                 break;
 621         }
 622
 623         if (flags & SV_LP64)
 624                 arch = "64";
 625         else if (flags & SV_ILP32)
 626                 arch = "32";
 627         else
 628                 arch = "00";
 629
 630         printf("%s%s  ", abi, arch);
 631
 632         return (flags);
 633 }
 634
 635 void
 636 dumpheader(struct ktr_header *kth)
 637 {
 638         static char unknown[64];
 639         static struct timeval prevtime, prevtime_e;
 640         struct timeval temp;
 641         const char *type;
 642         const char *sign;
 643
 644         switch (kth->ktr_type) {
 645         case KTR_SYSCALL:
 646                 type = "CALL";
 647                 break;
 648         case KTR_SYSRET:
 649                 type = "RET ";
 650                 break;
 651         case KTR_NAMEI:
 652                 type = "NAMI";
 653                 break;
 654         case KTR_GENIO:
 655                 type = "GIO ";
 656                 break;
 657         case KTR_PSIG:
 658                 type = "PSIG";
 659                 break;
 660         case KTR_CSW:
 661                 type = "CSW ";
 662                 break;
 663         case KTR_USER:
 664                 type = "USER";
 665                 break;
 666         case KTR_STRUCT:
 667         case KTR_STRUCT_ARRAY:
 668                 type = "STRU";
 669                 break;
 670         case KTR_SYSCTL:
 671                 type = "SCTL";
 672                 break;
 673         case KTR_PROCCTOR:
 674                 /* FALLTHROUGH */
 675         case KTR_PROCDTOR:
 676                 return;
 677         case KTR_CAPFAIL:
 678                 type = "CAP ";
 679                 break;
 680         case KTR_FAULT:
 681                 type = "PFLT";
 682                 break;
 683         case KTR_FAULTEND:
 684                 type = "PRET";
 685                 break;
 686         default:
 687                 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
 688                 type = unknown;
 689         }
 690
 691         /*
 692          * The ktr_tid field was previously the ktr_buffer field, which held
 693          * the kernel pointer value for the buffer associated with data
 694          * following the record header.  It now holds a threadid, but only
 695          * for trace files after the change.  Older trace files still contain
 696          * kernel pointers.  Detect this and suppress the results by printing
 697          * negative tid's as 0.
 698          */
 699         if (threads)
 700                 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
 701                     kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
 702                     MAXCOMLEN, kth->ktr_comm);
 703         else
 704                 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
 705                     kth->ktr_comm);
 706         if (timestamp) {
 707                 if (timestamp & TIMESTAMP_ABSOLUTE) {
 708                         printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
 709                             kth->ktr_time.tv_usec);
 710                 }
 711                 if (timestamp & TIMESTAMP_ELAPSED) {
 712                         if (prevtime_e.tv_sec == 0)
 713                                 prevtime_e = kth->ktr_time;
 714                         timersub(&kth->ktr_time, &prevtime_e, &temp);
 715                         printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
 716                             temp.tv_usec);
 717                 }
 718                 if (timestamp & TIMESTAMP_RELATIVE) {
 719                         if (prevtime.tv_sec == 0)
 720                                 prevtime = kth->ktr_time;
 721                         if (timercmp(&kth->ktr_time, &prevtime, <)) {
 722                                 timersub(&prevtime, &kth->ktr_time, &temp);
 723                                 sign = "-";
 724                         } else {
 725                                 timersub(&kth->ktr_time, &prevtime, &temp);
 726                                 sign = "";
 727                         }
 728                         prevtime = kth->ktr_time;
 729                         printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
 730                             temp.tv_usec);
 731                 }
 732         }
 733         printf("%s  ", type);
 734 }
 735
 736 #include <sys/syscall.h>
 737
 738 static void
 739 ioctlname(unsigned long val)
 740 {
 741         const char *str;
 742
 743         str = sysdecode_ioctlname(val);
 744         if (str != NULL)
 745                 printf("%s", str);
 746         else if (decimal)
 747                 printf("%lu", val);
 748         else
 749                 printf("%#lx", val);
 750 }
 751
 752 static enum sysdecode_abi
 753 syscallabi(u_int sv_flags)
 754 {
 755
 756         if (sv_flags == 0)
 757                 return (SYSDECODE_ABI_FREEBSD);
 758         switch (sv_flags & SV_ABI_MASK) {
 759         case SV_ABI_FREEBSD:
 760                 return (SYSDECODE_ABI_FREEBSD);
 761         case SV_ABI_LINUX:
 762 #ifdef __LP64__
 763                 if (sv_flags & SV_ILP32)
 764                         return (SYSDECODE_ABI_LINUX32);
 765 #endif
 766                 return (SYSDECODE_ABI_LINUX);
 767         case SV_ABI_CLOUDABI:
 768                 return (SYSDECODE_ABI_CLOUDABI64);
 769         default:
 770                 return (SYSDECODE_ABI_UNKNOWN);
 771         }
 772 }
 773
 774 static void
 775 syscallname(u_int code, u_int sv_flags)
 776 {
 777         const char *name;
 778
 779         name = sysdecode_syscallname(syscallabi(sv_flags), code);
 780         if (name == NULL)
 781                 printf("[%d]", code);
 782         else {
 783                 printf("%s", name);
 784                 if (syscallno)
 785                         printf("[%d]", code);
 786         }
 787 }
 788
 789 static void
 790 print_signal(int signo)
 791 {
 792         const char *signame;
 793
 794         signame = sysdecode_signal(signo);
 795         if (signame != NULL)
 796                 printf("%s", signame);
 797         else
 798                 printf("SIG %d", signo);
 799 }
 800
 801 void
 802 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
 803 {
 804         int narg = ktr->ktr_narg;
 805         register_t *ip, *first;
 806         intmax_t arg;
 807         int quad_align, quad_slots;
 808
 809         syscallname(ktr->ktr_code, sv_flags);
 810         ip = first = &ktr->ktr_args[0];
 811         if (narg) {
 812                 char c = '(';
 813                 if (fancy &&
 814                     (sv_flags == 0 ||
 815                     (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
 816                         quad_align = 0;
 817                         if (sv_flags & SV_ILP32) {
 818 #ifdef __powerpc__
 819                                 quad_align = 1;
 820 #endif
 821                                 quad_slots = 2;
 822                         } else
 823                                 quad_slots = 1;
 824                         switch (ktr->ktr_code) {
 825                         case SYS_bindat:
 826                         case SYS_chflagsat:
 827                         case SYS_connectat:
 828                         case SYS_faccessat:
 829                         case SYS_fchmodat:
 830                         case SYS_fchownat:
 831                         case SYS_fstatat:
 832                         case SYS_futimesat:
 833                         case SYS_linkat:
 834                         case SYS_mkdirat:
 835                         case SYS_mkfifoat:
 836                         case SYS_mknodat:
 837                         case SYS_openat:
 838                         case SYS_readlinkat:
 839                         case SYS_renameat:
 840                         case SYS_unlinkat:
 841                         case SYS_utimensat:
 842                                 putchar('(');
 843                                 print_integer_arg_valid(sysdecode_atfd, *ip);
 844                                 c = ',';
 845                                 ip++;
 846                                 narg--;
 847                                 break;
 848                         }
 849                         switch (ktr->ktr_code) {
 850                         case SYS_ioctl: {
 851                                 print_number(ip, narg, c);
 852                                 putchar(c);
 853                                 ioctlname(*ip);
 854                                 c = ',';
 855                                 ip++;
 856                                 narg--;
 857                                 break;
 858                         }
 859                         case SYS_ptrace:
 860                                 putchar('(');
 861                                 print_integer_arg(sysdecode_ptrace_request, *ip);
 862                                 c = ',';
 863                                 ip++;
 864                                 narg--;
 865                                 break;
 866                         case SYS_access:
 867                         case SYS_eaccess:
 868                         case SYS_faccessat:
 869                                 print_number(ip, narg, c);
 870                                 putchar(',');
 871                                 print_mask_arg(sysdecode_access_mode, *ip);
 872                                 ip++;
 873                                 narg--;
 874                                 break;
 875                         case SYS_open:
 876                         case SYS_openat:
 877                                 print_number(ip, narg, c);
 878                                 putchar(',');
 879                                 print_mask_arg(sysdecode_open_flags, ip[0]);
 880                                 if ((ip[0] & O_CREAT) == O_CREAT) {
 881                                         putchar(',');
 882                                         decode_filemode(ip[1]);
 883                                 }
 884                                 ip += 2;
 885                                 narg -= 2;
 886                                 break;
 887                         case SYS_wait4:
 888                                 print_number(ip, narg, c);
 889                                 print_number(ip, narg, c);
 890                                 putchar(',');
 891                                 print_mask_arg0(sysdecode_wait4_options, *ip);
 892                                 ip++;
 893                                 narg--;
 894                                 break;
 895                         case SYS_wait6:
 896                                 putchar('(');
 897                                 print_integer_arg(sysdecode_idtype, *ip);
 898                                 c = ',';
 899                                 ip++;
 900                                 narg--;
 901                                 print_number64(first, ip, narg, c);
 902                                 print_number(ip, narg, c);
 903                                 putchar(',');
 904                                 print_mask_arg(sysdecode_wait6_options, *ip);
 905                                 ip++;
 906                                 narg--;
 907                                 break;
 908                         case SYS_chmod:
 909                         case SYS_fchmod:
 910                         case SYS_lchmod:
 911                         case SYS_fchmodat:
 912                                 print_number(ip, narg, c);
 913                                 putchar(',');
 914                                 decode_filemode(*ip);
 915                                 ip++;
 916                                 narg--;
 917                                 break;
 918                         case SYS_mknodat:
 919                                 print_number(ip, narg, c);
 920                                 putchar(',');
 921                                 decode_filemode(*ip);
 922                                 ip++;
 923                                 narg--;
 924                                 break;
 925                         case SYS_getfsstat:
 926                                 print_number(ip, narg, c);
 927                                 print_number(ip, narg, c);
 928                                 putchar(',');
 929                                 print_integer_arg(sysdecode_getfsstat_mode, *ip);
 930                                 ip++;
 931                                 narg--;
 932                                 break;
 933                         case SYS_mount:
 934                                 print_number(ip, narg, c);
 935                                 print_number(ip, narg, c);
 936                                 putchar(',');
 937                                 print_mask_arg(sysdecode_mount_flags, *ip);
 938                                 ip++;
 939                                 narg--;
 940                                 break;
 941                         case SYS_unmount:
 942                                 print_number(ip, narg, c);
 943                                 putchar(',');
 944                                 print_mask_arg(sysdecode_mount_flags, *ip);
 945                                 ip++;
 946                                 narg--;
 947                                 break;
 948                         case SYS_recvmsg:
 949                         case SYS_sendmsg:
 950                                 print_number(ip, narg, c);
 951                                 print_number(ip, narg, c);
 952                                 putchar(',');
 953                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 954                                 ip++;
 955                                 narg--;
 956                                 break;
 957                         case SYS_recvfrom:
 958                         case SYS_sendto:
 959                                 print_number(ip, narg, c);
 960                                 print_number(ip, narg, c);
 961                                 print_number(ip, narg, c);
 962                                 putchar(',');
 963                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 964                                 ip++;
 965                                 narg--;
 966                                 break;
 967                         case SYS_chflags:
 968                         case SYS_chflagsat:
 969                         case SYS_fchflags:
 970                         case SYS_lchflags:
 971                                 print_number(ip, narg, c);
 972                                 putchar(',');
 973                                 decode_fileflags(*ip);
 974                                 ip++;
 975                                 narg--;
 976                                 break;
 977                         case SYS_kill:
 978                                 print_number(ip, narg, c);
 979                                 putchar(',');
 980                                 print_signal(*ip);
 981                                 ip++;
 982                                 narg--;
 983                                 break;
 984                         case SYS_reboot:
 985                                 putchar('(');
 986                                 print_mask_arg(sysdecode_reboot_howto, *ip);
 987                                 ip++;
 988                                 narg--;
 989                                 break;
 990                         case SYS_umask:
 991                                 putchar('(');
 992                                 decode_filemode(*ip);
 993                                 ip++;
 994                                 narg--;
 995                                 break;
 996                         case SYS_msync:
 997                                 print_number(ip, narg, c);
 998                                 print_number(ip, narg, c);
 999                                 putchar(',');
1000                                 print_mask_arg(sysdecode_msync_flags, *ip);
1001                                 ip++;
1002                                 narg--;
1003                                 break;
1004 #ifdef SYS_freebsd6_mmap
1005                         case SYS_freebsd6_mmap:
1006                                 print_number(ip, narg, c);
1007                                 print_number(ip, narg, c);
1008                                 putchar(',');
1009                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1010                                 putchar(',');
1011                                 ip++;
1012                                 narg--;
1013                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1014                                 ip++;
1015                                 narg--;
1016                                 break;
1017 #endif
1018                         case SYS_mmap:
1019                                 print_number(ip, narg, c);
1020                                 print_number(ip, narg, c);
1021                                 putchar(',');
1022                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1023                                 putchar(',');
1024                                 ip++;
1025                                 narg--;
1026                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1027                                 ip++;
1028                                 narg--;
1029                                 break;
1030                         case SYS_mprotect:
1031                                 print_number(ip, narg, c);
1032                                 print_number(ip, narg, c);
1033                                 putchar(',');
1034                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1035                                 ip++;
1036                                 narg--;
1037                                 break;
1038                         case SYS_madvise:
1039                                 print_number(ip, narg, c);
1040                                 print_number(ip, narg, c);
1041                                 putchar(',');
1042                                 print_integer_arg(sysdecode_madvice, *ip);
1043                                 ip++;
1044                                 narg--;
1045                                 break;
1046                         case SYS_pathconf:
1047                         case SYS_lpathconf:
1048                         case SYS_fpathconf:
1049                                 print_number(ip, narg, c);
1050                                 putchar(',');
1051                                 print_integer_arg(sysdecode_pathconf_name, *ip);
1052                                 ip++;
1053                                 narg--;
1054                                 break;
1055                         case SYS_getpriority:
1056                         case SYS_setpriority:
1057                                 putchar('(');
1058                                 print_integer_arg(sysdecode_prio_which, *ip);
1059                                 c = ',';
1060                                 ip++;
1061                                 narg--;
1062                                 break;
1063                         case SYS_fcntl:
1064                                 print_number(ip, narg, c);
1065                                 putchar(',');
1066                                 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1067                                 if (sysdecode_fcntl_arg_p(ip[0])) {
1068                                         putchar(',');
1069                                         if (ip[0] == F_SETFL)
1070                                                 print_mask_arg(
1071                                                     sysdecode_fcntl_fileflags,
1072                                                         ip[1]);
1073                                         else
1074                                                 sysdecode_fcntl_arg(stdout,
1075                                                     ip[0], ip[1],
1076                                                     decimal ? 10 : 16);
1077                                 }
1078                                 ip += 2;
1079                                 narg -= 2;
1080                                 break;
1081                         case SYS_socket: {
1082                                 int sockdomain;
1083                                 putchar('(');
1084                                 sockdomain = *ip;
1085                                 print_integer_arg(sysdecode_socketdomain,
1086                                     sockdomain);
1087                                 ip++;
1088                                 narg--;
1089                                 putchar(',');
1090                                 print_mask_arg(sysdecode_socket_type, *ip);
1091                                 ip++;
1092                                 narg--;
1093                                 if (sockdomain == PF_INET ||
1094                                     sockdomain == PF_INET6) {
1095                                         putchar(',');
1096                                         print_integer_arg(sysdecode_ipproto,
1097                                             *ip);
1098                                         ip++;
1099                                         narg--;
1100                                 }
1101                                 c = ',';
1102                                 break;
1103                         }
1104                         case SYS_setsockopt:
1105                         case SYS_getsockopt: {
1106                                 const char *str;
1107
1108                                 print_number(ip, narg, c);
1109                                 putchar(',');
1110                                 print_integer_arg_valid(sysdecode_sockopt_level,
1111                                     *ip);
1112                                 str = sysdecode_sockopt_name(ip[0], ip[1]);
1113                                 if (str != NULL) {
1114                                         printf(",%s", str);
1115                                         ip++;
1116                                         narg--;
1117                                 }
1118                                 ip++;
1119                                 narg--;
1120                                 break;
1121                         }
1122 #ifdef SYS_freebsd6_lseek
1123                         case SYS_freebsd6_lseek:
1124                                 print_number(ip, narg, c);
1125                                 /* Hidden 'pad' argument, not in lseek(2) */
1126                                 print_number(ip, narg, c);
1127                                 print_number64(first, ip, narg, c);
1128                                 putchar(',');
1129                                 print_integer_arg(sysdecode_whence, *ip);
1130                                 ip++;
1131                                 narg--;
1132                                 break;
1133 #endif
1134                         case SYS_lseek:
1135                                 print_number(ip, narg, c);
1136                                 print_number64(first, ip, narg, c);
1137                                 putchar(',');
1138                                 print_integer_arg(sysdecode_whence, *ip);
1139                                 ip++;
1140                                 narg--;
1141                                 break;
1142                         case SYS_flock:
1143                                 print_number(ip, narg, c);
1144                                 putchar(',');
1145                                 print_mask_arg(sysdecode_flock_operation, *ip);
1146                                 ip++;
1147                                 narg--;
1148                                 break;
1149                         case SYS_mkfifo:
1150                         case SYS_mkfifoat:
1151                         case SYS_mkdir:
1152                         case SYS_mkdirat:
1153                                 print_number(ip, narg, c);
1154                                 putchar(',');
1155                                 decode_filemode(*ip);
1156                                 ip++;
1157                                 narg--;
1158                                 break;
1159                         case SYS_shutdown:
1160                                 print_number(ip, narg, c);
1161                                 putchar(',');
1162                                 print_integer_arg(sysdecode_shutdown_how, *ip);
1163                                 ip++;
1164                                 narg--;
1165                                 break;
1166                         case SYS_socketpair:
1167                                 putchar('(');
1168                                 print_integer_arg(sysdecode_socketdomain, *ip);
1169                                 ip++;
1170                                 narg--;
1171                                 putchar(',');
1172                                 print_mask_arg(sysdecode_socket_type, *ip);
1173                                 ip++;
1174                                 narg--;
1175                                 c = ',';
1176                                 break;
1177                         case SYS_getrlimit:
1178                         case SYS_setrlimit:
1179                                 putchar('(');
1180                                 print_integer_arg(sysdecode_rlimit, *ip);
1181                                 ip++;
1182                                 narg--;
1183                                 c = ',';
1184                                 break;
1185                         case SYS_getrusage:
1186                                 putchar('(');
1187                                 print_integer_arg(sysdecode_getrusage_who, *ip);
1188                                 ip++;
1189                                 narg--;
1190                                 c = ',';
1191                                 break;
1192                         case SYS_quotactl:
1193                                 print_number(ip, narg, c);
1194                                 putchar(',');
1195                                 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1196                                         if (decimal)
1197                                                 printf("<invalid=%d>", (int)*ip);
1198                                         else
1199                                                 printf("<invalid=%#x>",
1200                                                     (int)*ip);
1201                                 }
1202                                 ip++;
1203                                 narg--;
1204                                 c = ',';
1205                                 break;
1206                         case SYS_nfssvc:
1207                                 putchar('(');
1208                                 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1209                                 ip++;
1210                                 narg--;
1211                                 c = ',';
1212                                 break;
1213                         case SYS_rtprio:
1214                         case SYS_rtprio_thread:
1215                                 putchar('(');
1216                                 print_integer_arg(sysdecode_rtprio_function,
1217                                     *ip);
1218                                 ip++;
1219                                 narg--;
1220                                 c = ',';
1221                                 break;
1222                         case SYS___semctl:
1223                                 print_number(ip, narg, c);
1224                                 print_number(ip, narg, c);
1225                                 putchar(',');
1226                                 print_integer_arg(sysdecode_semctl_cmd, *ip);
1227                                 ip++;
1228                                 narg--;
1229                                 break;
1230                         case SYS_semget:
1231                                 print_number(ip, narg, c);
1232                                 print_number(ip, narg, c);
1233                                 putchar(',');
1234                                 print_mask_arg(sysdecode_semget_flags, *ip);
1235                                 ip++;
1236                                 narg--;
1237                                 break;
1238                         case SYS_msgctl:
1239                                 print_number(ip, narg, c);
1240                                 putchar(',');
1241                                 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1242                                 ip++;
1243                                 narg--;
1244                                 break;
1245                         case SYS_shmat:
1246                                 print_number(ip, narg, c);
1247                                 print_number(ip, narg, c);
1248                                 putchar(',');
1249                                 print_mask_arg(sysdecode_shmat_flags, *ip);
1250                                 ip++;
1251                                 narg--;
1252                                 break;
1253                         case SYS_shmctl:
1254                                 print_number(ip, narg, c);
1255                                 putchar(',');
1256                                 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1257                                 ip++;
1258                                 narg--;
1259                                 break;
1260                         case SYS_shm_open:
1261                                 print_number(ip, narg, c);
1262                                 putchar(',');
1263                                 print_mask_arg(sysdecode_open_flags, ip[0]);
1264                                 putchar(',');
1265                                 decode_filemode(ip[1]);
1266                                 ip += 2;
1267                                 narg -= 2;
1268                                 break;
1269                         case SYS_minherit:
1270                                 print_number(ip, narg, c);
1271                                 print_number(ip, narg, c);
1272                                 putchar(',');
1273                                 print_integer_arg(sysdecode_minherit_inherit,
1274                                     *ip);
1275                                 ip++;
1276                                 narg--;
1277                                 break;
1278                         case SYS_rfork:
1279                                 putchar('(');
1280                                 print_mask_arg(sysdecode_rfork_flags, *ip);
1281                                 ip++;
1282                                 narg--;
1283                                 c = ',';
1284                                 break;
1285                         case SYS_lio_listio:
1286                                 putchar('(');
1287                                 print_integer_arg(sysdecode_lio_listio_mode,
1288                                     *ip);
1289                                 ip++;
1290                                 narg--;
1291                                 c = ',';
1292                                 break;
1293                         case SYS_mlockall:
1294                                 putchar('(');
1295                                 print_mask_arg(sysdecode_mlockall_flags, *ip);
1296                                 ip++;
1297                                 narg--;
1298                                 break;
1299                         case SYS_sched_setscheduler:
1300                                 print_number(ip, narg, c);
1301                                 putchar(',');
1302                                 print_integer_arg(sysdecode_scheduler_policy,
1303                                     *ip);
1304                                 ip++;
1305                                 narg--;
1306                                 break;
1307                         case SYS_sched_get_priority_max:
1308                         case SYS_sched_get_priority_min:
1309                                 putchar('(');
1310                                 print_integer_arg(sysdecode_scheduler_policy,
1311                                     *ip);
1312                                 ip++;
1313                                 narg--;
1314                                 break;
1315                         case SYS_sendfile:
1316                                 print_number(ip, narg, c);
1317                                 print_number(ip, narg, c);
1318                                 print_number(ip, narg, c);
1319                                 print_number(ip, narg, c);
1320                                 print_number(ip, narg, c);
1321                                 print_number(ip, narg, c);
1322                                 putchar(',');
1323                                 print_mask_arg(sysdecode_sendfile_flags, *ip);
1324                                 ip++;
1325                                 narg--;
1326                                 break;
1327                         case SYS_kldsym:
1328                                 print_number(ip, narg, c);
1329                                 putchar(',');
1330                                 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1331                                 ip++;
1332                                 narg--;
1333                                 break;
1334                         case SYS_sigprocmask:
1335                                 putchar('(');
1336                                 print_integer_arg(sysdecode_sigprocmask_how,
1337                                     *ip);
1338                                 ip++;
1339                                 narg--;
1340                                 c = ',';
1341                                 break;
1342                         case SYS___acl_get_file:
1343                         case SYS___acl_set_file:
1344                         case SYS___acl_get_fd:
1345                         case SYS___acl_set_fd:
1346                         case SYS___acl_delete_file:
1347                         case SYS___acl_delete_fd:
1348                         case SYS___acl_aclcheck_file:
1349                         case SYS___acl_aclcheck_fd:
1350                         case SYS___acl_get_link:
1351                         case SYS___acl_set_link:
1352                         case SYS___acl_delete_link:
1353                         case SYS___acl_aclcheck_link:
1354                                 print_number(ip, narg, c);
1355                                 putchar(',');
1356                                 print_integer_arg(sysdecode_acltype, *ip);
1357                                 ip++;
1358                                 narg--;
1359                                 break;
1360                         case SYS_sigaction:
1361                                 putchar('(');
1362                                 print_signal(*ip);
1363                                 ip++;
1364                                 narg--;
1365                                 c = ',';
1366                                 break;
1367                         case SYS_extattrctl:
1368                                 print_number(ip, narg, c);
1369                                 putchar(',');
1370                                 print_integer_arg(sysdecode_extattrnamespace,
1371                                     *ip);
1372                                 ip++;
1373                                 narg--;
1374                                 break;
1375                         case SYS_nmount:
1376                                 print_number(ip, narg, c);
1377                                 print_number(ip, narg, c);
1378                                 putchar(',');
1379                                 print_mask_arg(sysdecode_mount_flags, *ip);
1380                                 ip++;
1381                                 narg--;
1382                                 break;
1383                         case SYS_thr_create:
1384                                 print_number(ip, narg, c);
1385                                 print_number(ip, narg, c);
1386                                 putchar(',');
1387                                 print_mask_arg(sysdecode_thr_create_flags, *ip);
1388                                 ip++;
1389                                 narg--;
1390                                 break;
1391                         case SYS_thr_kill:
1392                                 print_number(ip, narg, c);
1393                                 putchar(',');
1394                                 print_signal(*ip);
1395                                 ip++;
1396                                 narg--;
1397                                 break;
1398                         case SYS_kldunloadf:
1399                                 print_number(ip, narg, c);
1400                                 putchar(',');
1401                                 print_integer_arg(sysdecode_kldunload_flags,
1402                                     *ip);
1403                                 ip++;
1404                                 narg--;
1405                                 break;
1406                         case SYS_linkat:
1407                         case SYS_renameat:
1408                         case SYS_symlinkat:
1409                                 print_number(ip, narg, c);
1410                                 putchar(',');
1411                                 print_integer_arg_valid(sysdecode_atfd, *ip);
1412                                 ip++;
1413                                 narg--;
1414                                 print_number(ip, narg, c);
1415                                 break;
1416                         case SYS_cap_fcntls_limit:
1417                                 print_number(ip, narg, c);
1418                                 putchar(',');
1419                                 arg = *ip;
1420                                 ip++;
1421                                 narg--;
1422                                 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1423                                 break;
1424                         case SYS_posix_fadvise:
1425                                 print_number(ip, narg, c);
1426                                 print_number(ip, narg, c);
1427                                 print_number(ip, narg, c);
1428                                 (void)putchar(',');
1429                                 print_integer_arg(sysdecode_fadvice, *ip);
1430                                 ip++;
1431                                 narg--;
1432                                 break;
1433                         case SYS_procctl:
1434                                 putchar('(');
1435                                 print_integer_arg(sysdecode_idtype, *ip);
1436                                 c = ',';
1437                                 ip++;
1438                                 narg--;
1439                                 print_number64(first, ip, narg, c);
1440                                 putchar(',');
1441                                 print_integer_arg(sysdecode_procctl_cmd, *ip);
1442                                 ip++;
1443                                 narg--;
1444                                 break;
1445                         case SYS__umtx_op:
1446                                 print_number(ip, narg, c);
1447                                 putchar(',');
1448                                 print_integer_arg(sysdecode_umtx_op, *ip);
1449                                 switch (*ip) {
1450                                 case UMTX_OP_CV_WAIT:
1451                                         ip++;
1452                                         narg--;
1453                                         putchar(',');
1454                                         print_mask_argul(
1455                                             sysdecode_umtx_cvwait_flags, *ip);
1456                                         break;
1457                                 case UMTX_OP_RW_RDLOCK:
1458                                         ip++;
1459                                         narg--;
1460                                         putchar(',');
1461                                         print_mask_argul(
1462                                             sysdecode_umtx_rwlock_flags, *ip);
1463                                         break;
1464                                 }
1465                                 ip++;
1466                                 narg--;
1467                                 break;
1468                         case SYS_ftruncate:
1469                         case SYS_truncate:
1470                                 print_number(ip, narg, c);
1471                                 print_number64(first, ip, narg, c);
1472                                 break;
1473                         case SYS_fchownat:
1474                                 print_number(ip, narg, c);
1475                                 print_number(ip, narg, c);
1476                                 print_number(ip, narg, c);
1477                                 break;
1478                         case SYS_fstatat:
1479                         case SYS_utimensat:
1480                                 print_number(ip, narg, c);
1481                                 print_number(ip, narg, c);
1482                                 break;
1483                         case SYS_unlinkat:
1484                                 print_number(ip, narg, c);
1485                                 break;
1486                         case SYS_sysarch:
1487                                 putchar('(');
1488                                 print_integer_arg(sysdecode_sysarch_number, *ip);
1489                                 ip++;
1490                                 narg--;
1491                                 c = ',';
1492                                 break;
1493                         }
1494                         switch (ktr->ktr_code) {
1495                         case SYS_chflagsat:
1496                         case SYS_fchownat:
1497                         case SYS_faccessat:
1498                         case SYS_fchmodat:
1499                         case SYS_fstatat:
1500                         case SYS_linkat:
1501                         case SYS_unlinkat:
1502                         case SYS_utimensat:
1503                                 putchar(',');
1504                                 print_mask_arg0(sysdecode_atflags, *ip);
1505                                 ip++;
1506                                 narg--;
1507                                 break;
1508                         }
1509                 }
1510                 while (narg > 0) {
1511                         print_number(ip, narg, c);
1512                 }
1513                 putchar(')');
1514         }
1515         putchar('\n');
1516 }
1517
1518 void
1519 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1520 {
1521         register_t ret = ktr->ktr_retval;
1522         int error = ktr->ktr_error;
1523
1524         syscallname(ktr->ktr_code, sv_flags);
1525         printf(" ");
1526
1527         if (error == 0) {
1528                 if (fancy) {
1529                         printf("%ld", (long)ret);
1530                         if (ret < 0 || ret > 9)
1531                                 printf("/%#lx", (unsigned long)ret);
1532                 } else {
1533                         if (decimal)
1534                                 printf("%ld", (long)ret);
1535                         else
1536                                 printf("%#lx", (unsigned long)ret);
1537                 }
1538         } else if (error == ERESTART)
1539                 printf("RESTART");
1540         else if (error == EJUSTRETURN)
1541                 printf("JUSTRETURN");
1542         else {
1543                 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1544                     syscallabi(sv_flags), error));
1545                 if (fancy)
1546                         printf(" %s", strerror(ktr->ktr_error));
1547         }
1548         putchar('\n');
1549 }
1550
1551 void
1552 ktrnamei(char *cp, int len)
1553 {
1554         printf("\"%.*s\"\n", len, cp);
1555 }
1556
1557 void
1558 hexdump(char *p, int len, int screenwidth)
1559 {
1560         int n, i;
1561         int width;
1562
1563         width = 0;
1564         do {
1565                 width += 2;
1566                 i = 13;                 /* base offset */
1567                 i += (width / 2) + 1;   /* spaces every second byte */
1568                 i += (width * 2);       /* width of bytes */
1569                 i += 3;                 /* "  |" */
1570                 i += width;             /* each byte */
1571                 i += 1;                 /* "|" */
1572         } while (i < screenwidth);
1573         width -= 2;
1574
1575         for (n = 0; n < len; n += width) {
1576                 for (i = n; i < n + width; i++) {
1577                         if ((i % width) == 0) { /* beginning of line */
1578                                 printf("       0x%04x", i);
1579                         }
1580                         if ((i % 2) == 0) {
1581                                 printf(" ");
1582                         }
1583                         if (i < len)
1584                                 printf("%02x", p[i] & 0xff);
1585                         else
1586                                 printf("  ");
1587                 }
1588                 printf("  |");
1589                 for (i = n; i < n + width; i++) {
1590                         if (i >= len)
1591                                 break;
1592                         if (p[i] >= ' ' && p[i] <= '~')
1593                                 printf("%c", p[i]);
1594                         else
1595                                 printf(".");
1596                 }
1597                 printf("|\n");
1598         }
1599         if ((i % width) != 0)
1600                 printf("\n");
1601 }
1602
1603 void
1604 visdump(char *dp, int datalen, int screenwidth)
1605 {
1606         int col = 0;
1607         char *cp;
1608         int width;
1609         char visbuf[5];
1610
1611         printf("       \"");
1612         col = 8;
1613         for (;datalen > 0; datalen--, dp++) {
1614                  vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1615                 cp = visbuf;
1616                 /*
1617                  * Keep track of printables and
1618                  * space chars (like fold(1)).
1619                  */
1620                 if (col == 0) {
1621                         putchar('\t');
1622                         col = 8;
1623                 }
1624                 switch(*cp) {
1625                 case '\n':
1626                         col = 0;
1627                         putchar('\n');
1628                         continue;
1629                 case '\t':
1630                         width = 8 - (col&07);
1631                         break;
1632                 default:
1633                         width = strlen(cp);
1634                 }
1635                 if (col + width > (screenwidth-2)) {
1636                         printf("\\\n\t");
1637                         col = 8;
1638                 }
1639                 col += width;
1640                 do {
1641                         putchar(*cp++);
1642                 } while (*cp);
1643         }
1644         if (col == 0)
1645                 printf("       ");
1646         printf("\"\n");
1647 }
1648
1649 void
1650 ktrgenio(struct ktr_genio *ktr, int len)
1651 {
1652         int datalen = len - sizeof (struct ktr_genio);
1653         char *dp = (char *)ktr + sizeof (struct ktr_genio);
1654         static int screenwidth = 0;
1655         int i, binary;
1656
1657         printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1658                 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1659                 datalen == 1 ? "" : "s");
1660         if (suppressdata)
1661                 return;
1662         if (screenwidth == 0) {
1663                 struct winsize ws;
1664
1665                 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1666                     ws.ws_col > 8)
1667                         screenwidth = ws.ws_col;
1668                 else
1669                         screenwidth = 80;
1670         }
1671         if (maxdata && datalen > maxdata)
1672                 datalen = maxdata;
1673
1674         for (i = 0, binary = 0; i < datalen && binary == 0; i++)  {
1675                 if (dp[i] >= 32 && dp[i] < 127)
1676                         continue;
1677                 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1678                         continue;
1679                 binary = 1;
1680         }
1681         if (binary)
1682                 hexdump(dp, datalen, screenwidth);
1683         else
1684                 visdump(dp, datalen, screenwidth);
1685 }
1686
1687 void
1688 ktrpsig(struct ktr_psig *psig)
1689 {
1690         const char *str;
1691
1692         print_signal(psig->signo);
1693         if (psig->action == SIG_DFL) {
1694                 printf(" SIG_DFL");
1695         } else {
1696                 printf(" caught handler=0x%lx mask=0x%x",
1697                     (u_long)psig->action, psig->mask.__bits[0]);
1698         }
1699         printf(" code=");
1700         str = sysdecode_sigcode(psig->signo, psig->code);
1701         if (str != NULL)
1702                 printf("%s", str);
1703         else
1704                 printf("<invalid=%#x>", psig->code);
1705         putchar('\n');
1706 }
1707
1708 void
1709 ktrcsw_old(struct ktr_csw_old *cs)
1710 {
1711         printf("%s %s\n", cs->out ? "stop" : "resume",
1712                 cs->user ? "user" : "kernel");
1713 }
1714
1715 void
1716 ktrcsw(struct ktr_csw *cs)
1717 {
1718         printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1719             cs->user ? "user" : "kernel", cs->wmesg);
1720 }
1721
1722 void
1723 ktruser(int len, void *p)
1724 {
1725         unsigned char *cp;
1726
1727         if (sysdecode_utrace(stdout, p, len)) {
1728                 printf("\n");
1729                 return;
1730         }
1731
1732         printf("%d ", len);
1733         cp = p;
1734         while (len--)
1735                 if (decimal)
1736                         printf(" %d", *cp++);
1737                 else
1738                         printf(" %02x", *cp++);
1739         printf("\n");
1740 }
1741
1742 void
1743 ktrcaprights(cap_rights_t *rightsp)
1744 {
1745
1746         printf("cap_rights_t ");
1747         sysdecode_cap_rights(stdout, rightsp);
1748         printf("\n");
1749 }
1750
1751 static void
1752 ktrtimeval(struct timeval *tv)
1753 {
1754
1755         printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1756 }
1757
1758 void
1759 ktritimerval(struct itimerval *it)
1760 {
1761
1762         printf("itimerval { .interval = ");
1763         ktrtimeval(&it->it_interval);
1764         printf(", .value = ");
1765         ktrtimeval(&it->it_value);
1766         printf(" }\n");
1767 }
1768
1769 void
1770 ktrsockaddr(struct sockaddr *sa)
1771 {
1772 /*
1773  TODO: Support additional address families
1774         #include <netsmb/netbios.h>
1775         struct sockaddr_nb      *nb;
1776 */
1777         const char *str;
1778         char addr[64];
1779
1780         /*
1781          * note: ktrstruct() has already verified that sa points to a
1782          * buffer at least sizeof(struct sockaddr) bytes long and exactly
1783          * sa->sa_len bytes long.
1784          */
1785         printf("struct sockaddr { ");
1786         str = sysdecode_sockaddr_family(sa->sa_family);
1787         if (str != NULL)
1788                 printf("%s", str);
1789         else
1790                 printf("<invalid=%d>", sa->sa_family);
1791         printf(", ");
1792
1793 #define check_sockaddr_len(n)                                   \
1794         if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) {  \
1795                 printf("invalid");                              \
1796                 break;                                          \
1797         }
1798
1799         switch(sa->sa_family) {
1800         case AF_INET: {
1801                 struct sockaddr_in sa_in;
1802
1803                 memset(&sa_in, 0, sizeof(sa_in));
1804                 memcpy(&sa_in, sa, sa->sa_len);
1805                 check_sockaddr_len(in);
1806                 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1807                 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1808                 break;
1809         }
1810         case AF_INET6: {
1811                 struct sockaddr_in6 sa_in6;
1812
1813                 memset(&sa_in6, 0, sizeof(sa_in6));
1814                 memcpy(&sa_in6, sa, sa->sa_len);
1815                 check_sockaddr_len(in6);
1816                 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1817                     addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1818                 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1819                 break;
1820         }
1821         case AF_UNIX: {
1822                 struct sockaddr_un sa_un;
1823
1824                 memset(&sa_un, 0, sizeof(sa_un));
1825                 memcpy(&sa_un, sa, sa->sa_len);
1826                 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1827                 break;
1828         }
1829         default:
1830                 printf("unknown address family");
1831         }
1832         printf(" }\n");
1833 }
1834
1835 void
1836 ktrstat(struct stat *statp)
1837 {
1838         char mode[12], timestr[PATH_MAX + 4];
1839         struct passwd *pwd;
1840         struct group  *grp;
1841         struct tm *tm;
1842
1843         /*
1844          * note: ktrstruct() has already verified that statp points to a
1845          * buffer exactly sizeof(struct stat) bytes long.
1846          */
1847         printf("struct stat {");
1848         printf("dev=%ju, ino=%ju, ",
1849                 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1850         if (resolv == 0)
1851                 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1852         else {
1853                 strmode(statp->st_mode, mode);
1854                 printf("mode=%s, ", mode);
1855         }
1856         printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1857         if (resolv == 0) {
1858                 pwd = NULL;
1859         } else {
1860 #ifdef WITH_CASPER
1861                 if (cappwd != NULL)
1862                         pwd = cap_getpwuid(cappwd, statp->st_uid);
1863                 else
1864 #endif
1865                         pwd = getpwuid(statp->st_uid);
1866         }
1867         if (pwd == NULL)
1868                 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1869         else
1870                 printf("uid=\"%s\", ", pwd->pw_name);
1871         if (resolv == 0) {
1872                 grp = NULL;
1873         } else {
1874 #ifdef WITH_CASPER
1875                 if (capgrp != NULL)
1876                         grp = cap_getgrgid(capgrp, statp->st_gid);
1877                 else
1878 #endif
1879                         grp = getgrgid(statp->st_gid);
1880         }
1881         if (grp == NULL)
1882                 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1883         else
1884                 printf("gid=\"%s\", ", grp->gr_name);
1885         printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1886         printf("atime=");
1887         if (resolv == 0)
1888                 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1889         else {
1890                 tm = localtime(&statp->st_atim.tv_sec);
1891                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1892                 printf("\"%s\"", timestr);
1893         }
1894         if (statp->st_atim.tv_nsec != 0)
1895                 printf(".%09ld, ", statp->st_atim.tv_nsec);
1896         else
1897                 printf(", ");
1898         printf("mtime=");
1899         if (resolv == 0)
1900                 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1901         else {
1902                 tm = localtime(&statp->st_mtim.tv_sec);
1903                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1904                 printf("\"%s\"", timestr);
1905         }
1906         if (statp->st_mtim.tv_nsec != 0)
1907                 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1908         else
1909                 printf(", ");
1910         printf("ctime=");
1911         if (resolv == 0)
1912                 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1913         else {
1914                 tm = localtime(&statp->st_ctim.tv_sec);
1915                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1916                 printf("\"%s\"", timestr);
1917         }
1918         if (statp->st_ctim.tv_nsec != 0)
1919                 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1920         else
1921                 printf(", ");
1922         printf("birthtime=");
1923         if (resolv == 0)
1924                 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1925         else {
1926                 tm = localtime(&statp->st_birthtim.tv_sec);
1927                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1928                 printf("\"%s\"", timestr);
1929         }
1930         if (statp->st_birthtim.tv_nsec != 0)
1931                 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1932         else
1933                 printf(", ");
1934         printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1935                 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1936                 (intmax_t)statp->st_blocks, statp->st_flags);
1937         printf(" }\n");
1938 }
1939
1940 void
1941 ktrstruct(char *buf, size_t buflen)
1942 {
1943         char *name, *data;
1944         size_t namelen, datalen;
1945         int i;
1946         cap_rights_t rights;
1947         struct itimerval it;
1948         struct stat sb;
1949         struct sockaddr_storage ss;
1950
1951         for (name = buf, namelen = 0;
1952              namelen < buflen && name[namelen] != '\0';
1953              ++namelen)
1954                 /* nothing */;
1955         if (namelen == buflen)
1956                 goto invalid;
1957         if (name[namelen] != '\0')
1958                 goto invalid;
1959         data = buf + namelen + 1;
1960         datalen = buflen - namelen - 1;
1961         if (datalen == 0)
1962                 goto invalid;
1963         /* sanity check */
1964         for (i = 0; i < (int)namelen; ++i)
1965                 if (!isalpha(name[i]))
1966                         goto invalid;
1967         if (strcmp(name, "caprights") == 0) {
1968                 if (datalen != sizeof(cap_rights_t))
1969                         goto invalid;
1970                 memcpy(&rights, data, datalen);
1971                 ktrcaprights(&rights);
1972         } else if (strcmp(name, "itimerval") == 0) {
1973                 if (datalen != sizeof(struct itimerval))
1974                         goto invalid;
1975                 memcpy(&it, data, datalen);
1976                 ktritimerval(&it);
1977         } else if (strcmp(name, "stat") == 0) {
1978                 if (datalen != sizeof(struct stat))
1979                         goto invalid;
1980                 memcpy(&sb, data, datalen);
1981                 ktrstat(&sb);
1982         } else if (strcmp(name, "sockaddr") == 0) {
1983                 if (datalen > sizeof(ss))
1984                         goto invalid;
1985                 memcpy(&ss, data, datalen);
1986                 if (datalen != ss.ss_len)
1987                         goto invalid;
1988                 ktrsockaddr((struct sockaddr *)&ss);
1989         } else {
1990                 printf("unknown structure\n");
1991         }
1992         return;
1993 invalid:
1994         printf("invalid record\n");
1995 }
1996
1997 void
1998 ktrcapfail(struct ktr_cap_fail *ktr)
1999 {
2000         switch (ktr->cap_type) {
2001         case CAPFAIL_NOTCAPABLE:
2002                 /* operation on fd with insufficient capabilities */
2003                 printf("operation requires ");
2004                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2005                 printf(", descriptor holds ");
2006                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2007                 break;
2008         case CAPFAIL_INCREASE:
2009                 /* requested more capabilities than fd already has */
2010                 printf("attempt to increase capabilities from ");
2011                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2012                 printf(" to ");
2013                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2014                 break;
2015         case CAPFAIL_SYSCALL:
2016                 /* called restricted syscall */
2017                 printf("disallowed system call");
2018                 break;
2019         case CAPFAIL_LOOKUP:
2020                 /* used ".." in strict-relative mode */
2021                 printf("restricted VFS lookup");
2022                 break;
2023         default:
2024                 printf("unknown capability failure: ");
2025                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2026                 printf(" ");
2027                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2028                 break;
2029         }
2030         printf("\n");
2031 }
2032
2033 void
2034 ktrfault(struct ktr_fault *ktr)
2035 {
2036
2037         printf("0x%jx ", (uintmax_t)ktr->vaddr);
2038         print_mask_arg(sysdecode_vmprot, ktr->type);
2039         printf("\n");
2040 }
2041
2042 void
2043 ktrfaultend(struct ktr_faultend *ktr)
2044 {
2045         const char *str;
2046
2047         str = sysdecode_vmresult(ktr->result);
2048         if (str != NULL)
2049                 printf("%s", str);
2050         else
2051                 printf("<invalid=%d>", ktr->result);
2052         printf("\n");
2053 }
2054
2055 void
2056 ktrkevent(struct kevent *kev)
2057 {
2058
2059         printf("{ ident=");
2060         switch (kev->filter) {
2061         case EVFILT_READ:
2062         case EVFILT_WRITE:
2063         case EVFILT_VNODE:
2064         case EVFILT_PROC:
2065         case EVFILT_TIMER:
2066         case EVFILT_PROCDESC:
2067         case EVFILT_EMPTY:
2068                 printf("%ju", (uintmax_t)kev->ident);
2069                 break;
2070         case EVFILT_SIGNAL:
2071                 print_signal(kev->ident);
2072                 break;
2073         default:
2074                 printf("%p", (void *)kev->ident);
2075         }
2076         printf(", filter=");
2077         print_integer_arg(sysdecode_kevent_filter, kev->filter);
2078         printf(", flags=");
2079         print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2080         printf(", fflags=");
2081         sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2082             decimal ? 10 : 16);
2083         printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2084 }
2085
2086 void
2087 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2088 {
2089         struct kevent kev;
2090         char *name, *data;
2091         size_t namelen, datalen;
2092         int i;
2093         bool first;
2094
2095         buflen -= sizeof(*ksa);
2096         for (name = (char *)(ksa + 1), namelen = 0;
2097              namelen < buflen && name[namelen] != '\0';
2098              ++namelen)
2099                 /* nothing */;
2100         if (namelen == buflen)
2101                 goto invalid;
2102         if (name[namelen] != '\0')
2103                 goto invalid;
2104         /* sanity check */
2105         for (i = 0; i < (int)namelen; ++i)
2106                 if (!isalnum(name[i]) && name[i] != '_')
2107                         goto invalid;
2108         data = name + namelen + 1;
2109         datalen = buflen - namelen - 1;
2110         printf("struct %s[] = { ", name);
2111         first = true;
2112         for (; datalen >= ksa->struct_size;
2113             data += ksa->struct_size, datalen -= ksa->struct_size) {
2114                 if (!first)
2115                         printf("\n             ");
2116                 else
2117                         first = false;
2118                 if (strcmp(name, "kevent") == 0) {
2119                         if (ksa->struct_size != sizeof(kev))
2120                                 goto bad_size;
2121                         memcpy(&kev, data, sizeof(kev));
2122                         ktrkevent(&kev);
2123                 } else if (strcmp(name, "kevent_freebsd11") == 0) {
2124                         struct kevent_freebsd11 kev11;
2125
2126                         if (ksa->struct_size != sizeof(kev11))
2127                                 goto bad_size;
2128                         memcpy(&kev11, data, sizeof(kev11));
2129                         memset(&kev, 0, sizeof(kev));
2130                         kev.ident = kev11.ident;
2131                         kev.filter = kev11.filter;
2132                         kev.flags = kev11.flags;
2133                         kev.fflags = kev11.fflags;
2134                         kev.data = kev11.data;
2135                         kev.udata = kev11.udata;
2136                         ktrkevent(&kev);
2137 #ifdef _WANT_KEVENT32
2138                 } else if (strcmp(name, "kevent32") == 0) {
2139                         struct kevent32 kev32;
2140
2141                         if (ksa->struct_size != sizeof(kev32))
2142                                 goto bad_size;
2143                         memcpy(&kev32, data, sizeof(kev32));
2144                         memset(&kev, 0, sizeof(kev));
2145                         kev.ident = kev32.ident;
2146                         kev.filter = kev32.filter;
2147                         kev.flags = kev32.flags;
2148                         kev.fflags = kev32.fflags;
2149 #if BYTE_ORDER == BIG_ENDIAN
2150                         kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2151 #else
2152                         kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2153 #endif
2154                         kev.udata = (void *)(uintptr_t)kev32.udata;
2155                         ktrkevent(&kev);
2156                 } else if (strcmp(name, "kevent32_freebsd11") == 0) {
2157                         struct kevent32_freebsd11 kev32;
2158
2159                         if (ksa->struct_size != sizeof(kev32))
2160                                 goto bad_size;
2161                         memcpy(&kev32, data, sizeof(kev32));
2162                         memset(&kev, 0, sizeof(kev));
2163                         kev.ident = kev32.ident;
2164                         kev.filter = kev32.filter;
2165                         kev.flags = kev32.flags;
2166                         kev.fflags = kev32.fflags;
2167                         kev.data = kev32.data;
2168                         kev.udata = (void *)(uintptr_t)kev32.udata;
2169                         ktrkevent(&kev);
2170 #endif
2171                 } else {
2172                         printf("<unknown structure> }\n");
2173                         return;
2174                 }
2175         }
2176         printf(" }\n");
2177         return;
2178 invalid:
2179         printf("invalid record\n");
2180         return;
2181 bad_size:
2182         printf("<bad size> }\n");
2183         return;
2184 }
2185
2186 void
2187 usage(void)
2188 {
2189         fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2190             "[-m maxdata] [-p pid] [-t trstr]\n");
2191         exit(1);
2192 }