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/mman.h>
  59 #include <sys/ioctl.h>
  60 #include <sys/socket.h>
  61 #include <sys/stat.h>
  62 #include <sys/sysent.h>
  63 #include <sys/umtx.h>
  64 #include <sys/un.h>
  65 #include <sys/queue.h>
  66 #include <sys/wait.h>
  67 #ifdef WITH_CASPER
  68 #include <sys/nv.h>
  69 #endif
  70 #include <arpa/inet.h>
  71 #include <netinet/in.h>
  72 #include <ctype.h>
  73 #include <capsicum_helpers.h>
  74 #include <err.h>
  75 #include <grp.h>
  76 #include <inttypes.h>
  77 #include <locale.h>
  78 #include <netdb.h>
  79 #include <nl_types.h>
  80 #include <pwd.h>
  81 #include <stddef.h>
  82 #include <stdio.h>
  83 #include <stdlib.h>
  84 #include <string.h>
  85 #include <sysdecode.h>
  86 #include <time.h>
  87 #include <unistd.h>
  88 #include <vis.h>
  89 #include "ktrace.h"
  90
  91 #ifdef WITH_CASPER
  92 #include <libcasper.h>
  93
  94 #include <casper/cap_grp.h>
  95 #include <casper/cap_pwd.h>
  96 #endif
  97
  98 int fetchprocinfo(struct ktr_header *, u_int *);
  99 u_int findabi(struct ktr_header *);
 100 int fread_tail(void *, int, int);
 101 void dumpheader(struct ktr_header *, u_int);
 102 void ktrsyscall(struct ktr_syscall *, u_int);
 103 void ktrsysret(struct ktr_sysret *, u_int);
 104 void ktrnamei(char *, int);
 105 void hexdump(char *, int, int);
 106 void visdump(char *, int, int);
 107 void ktrgenio(struct ktr_genio *, int);
 108 void ktrpsig(struct ktr_psig *);
 109 void ktrcsw(struct ktr_csw *);
 110 void ktrcsw_old(struct ktr_csw_old *);
 111 void ktruser(int, void *);
 112 void ktrcaprights(cap_rights_t *);
 113 void ktritimerval(struct itimerval *it);
 114 void ktrsockaddr(struct sockaddr *);
 115 void ktrstat(struct stat *);
 116 void ktrstruct(char *, size_t);
 117 void ktrcapfail(struct ktr_cap_fail *);
 118 void ktrfault(struct ktr_fault *);
 119 void ktrfaultend(struct ktr_faultend *);
 120 void ktrkevent(struct kevent *);
 121 void ktrstructarray(struct ktr_struct_array *, size_t);
 122 void usage(void);
 123
 124 #define TIMESTAMP_NONE          0x0
 125 #define TIMESTAMP_ABSOLUTE      0x1
 126 #define TIMESTAMP_ELAPSED       0x2
 127 #define TIMESTAMP_RELATIVE      0x4
 128
 129 static bool abiflag, decimal, fancy = true, resolv, suppressdata, syscallno,
 130     tail, threads;
 131 static int timestamp, maxdata;
 132 static const char *tracefile = DEF_TRACEFILE;
 133 static struct ktr_header ktr_header;
 134
 135 #define TIME_FORMAT     "%b %e %T %Y"
 136 #define eqs(s1, s2)     (strcmp((s1), (s2)) == 0)
 137
 138 #define print_number64(first,i,n,c) do {                                \
 139         uint64_t __v;                                                   \
 140                                                                         \
 141         if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) {    \
 142                 (i)++;                                                  \
 143                 (n)--;                                                  \
 144         }                                                               \
 145         if (quad_slots == 2)                                            \
 146                 __v = (uint64_t)(uint32_t)(i)[0] |                      \
 147                     ((uint64_t)(uint32_t)(i)[1]) << 32;                 \
 148         else                                                            \
 149                 __v = (uint64_t)*(i);                                   \
 150         if (decimal)                                                    \
 151                 printf("%c%jd", (c), (intmax_t)__v);                    \
 152         else                                                            \
 153                 printf("%c%#jx", (c), (uintmax_t)__v);                  \
 154         (i) += quad_slots;                                              \
 155         (n) -= quad_slots;                                              \
 156         (c) = ',';                                                      \
 157 } while (0)
 158
 159 #define print_number(i,n,c) do {                                        \
 160         if (decimal)                                                    \
 161                 printf("%c%jd", c, (intmax_t)*i);                       \
 162         else                                                            \
 163                 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i);       \
 164         i++;                                                            \
 165         n--;                                                            \
 166         c = ',';                                                        \
 167 } while (0)
 168
 169 struct proc_info
 170 {
 171         TAILQ_ENTRY(proc_info)  info;
 172         u_int                   sv_flags;
 173         pid_t                   pid;
 174 };
 175
 176 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
 177
 178 #ifdef WITH_CASPER
 179 static cap_channel_t *cappwd, *capgrp;
 180
 181 static int
 182 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
 183 {
 184         cap_channel_t *capcas, *cappwdloc, *capgrploc;
 185         const char *cmds[1], *fields[1];
 186
 187         capcas = cap_init();
 188         if (capcas == NULL) {
 189                 err(1, "unable to create casper process");
 190                 exit(1);
 191         }
 192         cappwdloc = cap_service_open(capcas, "system.pwd");
 193         capgrploc = cap_service_open(capcas, "system.grp");
 194         /* Casper capability no longer needed. */
 195         cap_close(capcas);
 196         if (cappwdloc == NULL || capgrploc == NULL) {
 197                 if (cappwdloc == NULL)
 198                         warn("unable to open system.pwd service");
 199                 if (capgrploc == NULL)
 200                         warn("unable to open system.grp service");
 201                 exit(1);
 202         }
 203         /* Limit system.pwd to only getpwuid() function and pw_name field. */
 204         cmds[0] = "getpwuid";
 205         if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
 206                 err(1, "unable to limit system.pwd service");
 207         fields[0] = "pw_name";
 208         if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
 209                 err(1, "unable to limit system.pwd service");
 210         /* Limit system.grp to only getgrgid() function and gr_name field. */
 211         cmds[0] = "getgrgid";
 212         if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
 213                 err(1, "unable to limit system.grp service");
 214         fields[0] = "gr_name";
 215         if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
 216                 err(1, "unable to limit system.grp service");
 217
 218         *cappwdp = cappwdloc;
 219         *capgrpp = capgrploc;
 220         return (0);
 221 }
 222 #endif  /* WITH_CASPER */
 223
 224 static void
 225 print_integer_arg(const char *(*decoder)(int), int value)
 226 {
 227         const char *str;
 228
 229         str = decoder(value);
 230         if (str != NULL)
 231                 printf("%s", str);
 232         else {
 233                 if (decimal)
 234                         printf("<invalid=%d>", value);
 235                 else
 236                         printf("<invalid=%#x>", value);
 237         }
 238 }
 239
 240 /* Like print_integer_arg but unknown values are treated as valid. */
 241 static void
 242 print_integer_arg_valid(const char *(*decoder)(int), int value)
 243 {
 244         const char *str;
 245
 246         str = decoder(value);
 247         if (str != NULL)
 248                 printf("%s", str);
 249         else {
 250                 if (decimal)
 251                         printf("%d", value);
 252                 else
 253                         printf("%#x", value);
 254         }
 255 }
 256
 257 static void
 258 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
 259 {
 260         bool invalid;
 261         int rem;
 262
 263         printf("%#x<", value);
 264         invalid = !decoder(stdout, value, &rem);
 265         printf(">");
 266         if (invalid)
 267                 printf("<invalid>%u", rem);
 268 }
 269
 270 static void
 271 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
 272 {
 273         bool invalid;
 274         int rem;
 275
 276         if (value == 0) {
 277                 printf("0");
 278                 return;
 279         }
 280         printf("%#x<", value);
 281         invalid = !decoder(stdout, value, &rem);
 282         printf(">");
 283         if (invalid)
 284                 printf("<invalid>%u", rem);
 285 }
 286
 287 static void
 288 decode_fileflags(fflags_t value)
 289 {
 290         bool invalid;
 291         fflags_t rem;
 292
 293         if (value == 0) {
 294                 printf("0");
 295                 return;
 296         }
 297         printf("%#x<", value);
 298         invalid = !sysdecode_fileflags(stdout, value, &rem);
 299         printf(">");
 300         if (invalid)
 301                 printf("<invalid>%u", rem);
 302 }
 303
 304 static void
 305 decode_filemode(int value)
 306 {
 307         bool invalid;
 308         int rem;
 309
 310         if (value == 0) {
 311                 printf("0");
 312                 return;
 313         }
 314         printf("%#o<", value);
 315         invalid = !sysdecode_filemode(stdout, value, &rem);
 316         printf(">");
 317         if (invalid)
 318                 printf("<invalid>%u", rem);
 319 }
 320
 321 static void
 322 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
 323 {
 324         bool invalid;
 325         uint32_t rem;
 326
 327         printf("%#x<", value);
 328         invalid = !decoder(stdout, value, &rem);
 329         printf(">");
 330         if (invalid)
 331                 printf("<invalid>%u", rem);
 332 }
 333
 334 static void
 335 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
 336 {
 337         bool invalid;
 338         u_long rem;
 339
 340         if (value == 0) {
 341                 printf("0");
 342                 return;
 343         }
 344         printf("%#lx<", value);
 345         invalid = !decoder(stdout, value, &rem);
 346         printf(">");
 347         if (invalid)
 348                 printf("<invalid>%lu", rem);
 349 }
 350
 351 int
 352 main(int argc, char *argv[])
 353 {
 354         int ch, ktrlen, size;
 355         void *m;
 356         int trpoints = ALL_POINTS;
 357         int drop_logged;
 358         pid_t pid = 0;
 359         u_int sv_flags;
 360
 361         setlocale(LC_CTYPE, "");
 362
 363         timestamp = TIMESTAMP_NONE;
 364
 365         while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
 366                 switch (ch) {
 367                 case 'A':
 368                         abiflag = true;
 369                         break;
 370                 case 'f':
 371                         tracefile = optarg;
 372                         break;
 373                 case 'd':
 374                         decimal = true;
 375                         break;
 376                 case 'l':
 377                         tail = true;
 378                         break;
 379                 case 'm':
 380                         maxdata = atoi(optarg);
 381                         break;
 382                 case 'n':
 383                         fancy = false;
 384                         break;
 385                 case 'p':
 386                         pid = atoi(optarg);
 387                         break;
 388                 case 'r':
 389                         resolv = true;
 390                         break;
 391                 case 'S':
 392                         syscallno = true;
 393                         break;
 394                 case 's':
 395                         suppressdata = true;
 396                         break;
 397                 case 'E':
 398                         timestamp |= TIMESTAMP_ELAPSED;
 399                         break;
 400                 case 'H':
 401                         threads = true;
 402                         break;
 403                 case 'R':
 404                         timestamp |= TIMESTAMP_RELATIVE;
 405                         break;
 406                 case 'T':
 407                         timestamp |= TIMESTAMP_ABSOLUTE;
 408                         break;
 409                 case 't':
 410                         trpoints = getpoints(optarg);
 411                         if (trpoints < 0)
 412                                 errx(1, "unknown trace point in %s", optarg);
 413                         break;
 414                 default:
 415                         usage();
 416                 }
 417
 418         if (argc > optind)
 419                 usage();
 420
 421         m = malloc(size = 1025);
 422         if (m == NULL)
 423                 errx(1, "%s", strerror(ENOMEM));
 424         if (strcmp(tracefile, "-") != 0)
 425                 if (!freopen(tracefile, "r", stdin))
 426                         err(1, "%s", tracefile);
 427
 428         caph_cache_catpages();
 429         caph_cache_tzdata();
 430
 431 #ifdef WITH_CASPER
 432         if (resolv) {
 433                 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
 434                         cappwd = NULL;
 435                         capgrp = NULL;
 436                 }
 437         }
 438         if (!resolv || (cappwd != NULL && capgrp != NULL)) {
 439                 if (caph_enter() < 0)
 440                         err(1, "unable to enter capability mode");
 441         }
 442 #else
 443         if (!resolv) {
 444                 if (caph_enter() < 0)
 445                         err(1, "unable to enter capability mode");
 446         }
 447 #endif
 448         if (caph_limit_stdio() == -1)
 449                 err(1, "unable to limit stdio");
 450
 451         TAILQ_INIT(&trace_procs);
 452         drop_logged = 0;
 453         while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
 454                 if (ktr_header.ktr_type & KTR_DROP) {
 455                         ktr_header.ktr_type &= ~KTR_DROP;
 456                         if (!drop_logged && threads) {
 457                                 printf(
 458                                     "%6jd %6jd %-8.*s Events dropped.\n",
 459                                     (intmax_t)ktr_header.ktr_pid,
 460                                     ktr_header.ktr_tid > 0 ?
 461                                     (intmax_t)ktr_header.ktr_tid : 0,
 462                                     MAXCOMLEN, ktr_header.ktr_comm);
 463                                 drop_logged = 1;
 464                         } else if (!drop_logged) {
 465                                 printf("%6jd %-8.*s Events dropped.\n",
 466                                     (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
 467                                     ktr_header.ktr_comm);
 468                                 drop_logged = 1;
 469                         }
 470                 }
 471                 if ((ktrlen = ktr_header.ktr_len) < 0)
 472                         errx(1, "bogus length 0x%x", ktrlen);
 473                 if (ktrlen > size) {
 474                         m = realloc(m, ktrlen+1);
 475                         if (m == NULL)
 476                                 errx(1, "%s", strerror(ENOMEM));
 477                         size = ktrlen;
 478                 }
 479                 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
 480                         errx(1, "data too short");
 481                 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
 482                         continue;
 483                 if (pid && ktr_header.ktr_pid != pid &&
 484                     ktr_header.ktr_tid != pid)
 485                         continue;
 486                 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
 487                         continue;
 488                 sv_flags = findabi(&ktr_header);
 489                 dumpheader(&ktr_header, sv_flags);
 490                 drop_logged = 0;
 491                 switch (ktr_header.ktr_type) {
 492                 case KTR_SYSCALL:
 493                         ktrsyscall((struct ktr_syscall *)m, sv_flags);
 494                         break;
 495                 case KTR_SYSRET:
 496                         ktrsysret((struct ktr_sysret *)m, sv_flags);
 497                         break;
 498                 case KTR_NAMEI:
 499                 case KTR_SYSCTL:
 500                         ktrnamei(m, ktrlen);
 501                         break;
 502                 case KTR_GENIO:
 503                         ktrgenio((struct ktr_genio *)m, ktrlen);
 504                         break;
 505                 case KTR_PSIG:
 506                         ktrpsig((struct ktr_psig *)m);
 507                         break;
 508                 case KTR_CSW:
 509                         if (ktrlen == sizeof(struct ktr_csw_old))
 510                                 ktrcsw_old((struct ktr_csw_old *)m);
 511                         else
 512                                 ktrcsw((struct ktr_csw *)m);
 513                         break;
 514                 case KTR_USER:
 515                         ktruser(ktrlen, m);
 516                         break;
 517                 case KTR_STRUCT:
 518                         ktrstruct(m, ktrlen);
 519                         break;
 520                 case KTR_CAPFAIL:
 521                         ktrcapfail((struct ktr_cap_fail *)m);
 522                         break;
 523                 case KTR_FAULT:
 524                         ktrfault((struct ktr_fault *)m);
 525                         break;
 526                 case KTR_FAULTEND:
 527                         ktrfaultend((struct ktr_faultend *)m);
 528                         break;
 529                 case KTR_STRUCT_ARRAY:
 530                         ktrstructarray((struct ktr_struct_array *)m, ktrlen);
 531                         break;
 532                 default:
 533                         printf("\n");
 534                         break;
 535                 }
 536                 if (tail)
 537                         fflush(stdout);
 538         }
 539         return 0;
 540 }
 541
 542 int
 543 fread_tail(void *buf, int size, int num)
 544 {
 545         int i;
 546
 547         while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
 548                 sleep(1);
 549                 clearerr(stdin);
 550         }
 551         return (i);
 552 }
 553
 554 int
 555 fetchprocinfo(struct ktr_header *kth, u_int *flags)
 556 {
 557         struct proc_info *pi;
 558
 559         switch (kth->ktr_type) {
 560         case KTR_PROCCTOR:
 561                 TAILQ_FOREACH(pi, &trace_procs, info) {
 562                         if (pi->pid == kth->ktr_pid) {
 563                                 TAILQ_REMOVE(&trace_procs, pi, info);
 564                                 break;
 565                         }
 566                 }
 567                 pi = malloc(sizeof(struct proc_info));
 568                 if (pi == NULL)
 569                         errx(1, "%s", strerror(ENOMEM));
 570                 pi->sv_flags = *flags;
 571                 pi->pid = kth->ktr_pid;
 572                 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
 573                 return (1);
 574
 575         case KTR_PROCDTOR:
 576                 TAILQ_FOREACH(pi, &trace_procs, info) {
 577                         if (pi->pid == kth->ktr_pid) {
 578                                 TAILQ_REMOVE(&trace_procs, pi, info);
 579                                 free(pi);
 580                                 break;
 581                         }
 582                 }
 583                 return (1);
 584         }
 585
 586         return (0);
 587 }
 588
 589 u_int
 590 findabi(struct ktr_header *kth)
 591 {
 592         struct proc_info *pi;
 593
 594         TAILQ_FOREACH(pi, &trace_procs, info) {
 595                 if (pi->pid == kth->ktr_pid) {
 596                         return (pi->sv_flags);
 597                 }
 598         }
 599         return (0);
 600 }
 601
 602 void
 603 dumpheader(struct ktr_header *kth, u_int sv_flags)
 604 {
 605         static char unknown[64];
 606         static struct timeval prevtime, prevtime_e;
 607         struct timeval temp;
 608         const char *abi;
 609         const char *arch;
 610         const char *type;
 611         const char *sign;
 612
 613         switch (kth->ktr_type) {
 614         case KTR_SYSCALL:
 615                 type = "CALL";
 616                 break;
 617         case KTR_SYSRET:
 618                 type = "RET ";
 619                 break;
 620         case KTR_NAMEI:
 621                 type = "NAMI";
 622                 break;
 623         case KTR_GENIO:
 624                 type = "GIO ";
 625                 break;
 626         case KTR_PSIG:
 627                 type = "PSIG";
 628                 break;
 629         case KTR_CSW:
 630                 type = "CSW ";
 631                 break;
 632         case KTR_USER:
 633                 type = "USER";
 634                 break;
 635         case KTR_STRUCT:
 636         case KTR_STRUCT_ARRAY:
 637                 type = "STRU";
 638                 break;
 639         case KTR_SYSCTL:
 640                 type = "SCTL";
 641                 break;
 642         case KTR_CAPFAIL:
 643                 type = "CAP ";
 644                 break;
 645         case KTR_FAULT:
 646                 type = "PFLT";
 647                 break;
 648         case KTR_FAULTEND:
 649                 type = "PRET";
 650                 break;
 651         default:
 652                 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
 653                 type = unknown;
 654         }
 655
 656         /*
 657          * The ktr_tid field was previously the ktr_buffer field, which held
 658          * the kernel pointer value for the buffer associated with data
 659          * following the record header.  It now holds a threadid, but only
 660          * for trace files after the change.  Older trace files still contain
 661          * kernel pointers.  Detect this and suppress the results by printing
 662          * negative tid's as 0.
 663          */
 664         if (threads)
 665                 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
 666                     kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
 667                     MAXCOMLEN, kth->ktr_comm);
 668         else
 669                 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
 670                     kth->ktr_comm);
 671         if (timestamp) {
 672                 if (timestamp & TIMESTAMP_ABSOLUTE) {
 673                         printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
 674                             kth->ktr_time.tv_usec);
 675                 }
 676                 if (timestamp & TIMESTAMP_ELAPSED) {
 677                         if (prevtime_e.tv_sec == 0)
 678                                 prevtime_e = kth->ktr_time;
 679                         timersub(&kth->ktr_time, &prevtime_e, &temp);
 680                         printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
 681                             temp.tv_usec);
 682                 }
 683                 if (timestamp & TIMESTAMP_RELATIVE) {
 684                         if (prevtime.tv_sec == 0)
 685                                 prevtime = kth->ktr_time;
 686                         if (timercmp(&kth->ktr_time, &prevtime, <)) {
 687                                 timersub(&prevtime, &kth->ktr_time, &temp);
 688                                 sign = "-";
 689                         } else {
 690                                 timersub(&kth->ktr_time, &prevtime, &temp);
 691                                 sign = "";
 692                         }
 693                         prevtime = kth->ktr_time;
 694                         printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
 695                             temp.tv_usec);
 696                 }
 697         }
 698         printf("%s  ", type);
 699         if (abiflag != 0) {
 700                 switch (sv_flags & SV_ABI_MASK) {
 701                 case SV_ABI_LINUX:
 702                         abi = "L";
 703                         break;
 704                 case SV_ABI_FREEBSD:
 705                         abi = "F";
 706                         break;
 707                 case SV_ABI_CLOUDABI:
 708                         abi = "C";
 709                         break;
 710                 default:
 711                         abi = "U";
 712                         break;
 713                 }
 714
 715                 if ((sv_flags & SV_LP64) != 0)
 716                         arch = "64";
 717                 else if ((sv_flags & SV_ILP32) != 0)
 718                         arch = "32";
 719                 else
 720                         arch = "00";
 721
 722                 printf("%s%s  ", abi, arch);
 723         }
 724 }
 725
 726 #include <sys/syscall.h>
 727
 728 static void
 729 ioctlname(unsigned long val)
 730 {
 731         const char *str;
 732
 733         str = sysdecode_ioctlname(val);
 734         if (str != NULL)
 735                 printf("%s", str);
 736         else if (decimal)
 737                 printf("%lu", val);
 738         else
 739                 printf("%#lx", val);
 740 }
 741
 742 static enum sysdecode_abi
 743 syscallabi(u_int sv_flags)
 744 {
 745
 746         if (sv_flags == 0)
 747                 return (SYSDECODE_ABI_FREEBSD);
 748         switch (sv_flags & SV_ABI_MASK) {
 749         case SV_ABI_FREEBSD:
 750                 return (SYSDECODE_ABI_FREEBSD);
 751         case SV_ABI_LINUX:
 752 #ifdef __LP64__
 753                 if (sv_flags & SV_ILP32)
 754                         return (SYSDECODE_ABI_LINUX32);
 755 #endif
 756                 return (SYSDECODE_ABI_LINUX);
 757         case SV_ABI_CLOUDABI:
 758                 return (SYSDECODE_ABI_CLOUDABI64);
 759         default:
 760                 return (SYSDECODE_ABI_UNKNOWN);
 761         }
 762 }
 763
 764 static void
 765 syscallname(u_int code, u_int sv_flags)
 766 {
 767         const char *name;
 768
 769         name = sysdecode_syscallname(syscallabi(sv_flags), code);
 770         if (name == NULL)
 771                 printf("[%d]", code);
 772         else {
 773                 printf("%s", name);
 774                 if (syscallno)
 775                         printf("[%d]", code);
 776         }
 777 }
 778
 779 static void
 780 print_signal(int signo)
 781 {
 782         const char *signame;
 783
 784         signame = sysdecode_signal(signo);
 785         if (signame != NULL)
 786                 printf("%s", signame);
 787         else
 788                 printf("SIG %d", signo);
 789 }
 790
 791 void
 792 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
 793 {
 794         int narg = ktr->ktr_narg;
 795         register_t *ip, *first;
 796         intmax_t arg;
 797         int quad_align, quad_slots;
 798
 799         syscallname(ktr->ktr_code, sv_flags);
 800         ip = first = &ktr->ktr_args[0];
 801         if (narg) {
 802                 char c = '(';
 803                 if (fancy &&
 804                     (sv_flags == 0 ||
 805                     (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
 806                         quad_align = 0;
 807                         if (sv_flags & SV_ILP32) {
 808 #ifdef __powerpc__
 809                                 quad_align = 1;
 810 #endif
 811                                 quad_slots = 2;
 812                         } else
 813                                 quad_slots = 1;
 814                         switch (ktr->ktr_code) {
 815                         case SYS_bindat:
 816                         case SYS_chflagsat:
 817                         case SYS_connectat:
 818                         case SYS_faccessat:
 819                         case SYS_fchmodat:
 820                         case SYS_fchownat:
 821                         case SYS_fstatat:
 822                         case SYS_futimesat:
 823                         case SYS_linkat:
 824                         case SYS_mkdirat:
 825                         case SYS_mkfifoat:
 826                         case SYS_mknodat:
 827                         case SYS_openat:
 828                         case SYS_readlinkat:
 829                         case SYS_renameat:
 830                         case SYS_unlinkat:
 831                         case SYS_utimensat:
 832                                 putchar('(');
 833                                 print_integer_arg_valid(sysdecode_atfd, *ip);
 834                                 c = ',';
 835                                 ip++;
 836                                 narg--;
 837                                 break;
 838                         }
 839                         switch (ktr->ktr_code) {
 840                         case SYS_ioctl: {
 841                                 print_number(ip, narg, c);
 842                                 putchar(c);
 843                                 ioctlname(*ip);
 844                                 c = ',';
 845                                 ip++;
 846                                 narg--;
 847                                 break;
 848                         }
 849                         case SYS_ptrace:
 850                                 putchar('(');
 851                                 print_integer_arg(sysdecode_ptrace_request, *ip);
 852                                 c = ',';
 853                                 ip++;
 854                                 narg--;
 855                                 break;
 856                         case SYS_access:
 857                         case SYS_eaccess:
 858                         case SYS_faccessat:
 859                                 print_number(ip, narg, c);
 860                                 putchar(',');
 861                                 print_mask_arg(sysdecode_access_mode, *ip);
 862                                 ip++;
 863                                 narg--;
 864                                 break;
 865                         case SYS_open:
 866                         case SYS_openat:
 867                                 print_number(ip, narg, c);
 868                                 putchar(',');
 869                                 print_mask_arg(sysdecode_open_flags, ip[0]);
 870                                 if ((ip[0] & O_CREAT) == O_CREAT) {
 871                                         putchar(',');
 872                                         decode_filemode(ip[1]);
 873                                 }
 874                                 ip += 2;
 875                                 narg -= 2;
 876                                 break;
 877                         case SYS_wait4:
 878                                 print_number(ip, narg, c);
 879                                 print_number(ip, narg, c);
 880                                 putchar(',');
 881                                 print_mask_arg0(sysdecode_wait4_options, *ip);
 882                                 ip++;
 883                                 narg--;
 884                                 break;
 885                         case SYS_wait6:
 886                                 putchar('(');
 887                                 print_integer_arg(sysdecode_idtype, *ip);
 888                                 c = ',';
 889                                 ip++;
 890                                 narg--;
 891                                 print_number64(first, ip, narg, c);
 892                                 print_number(ip, narg, c);
 893                                 putchar(',');
 894                                 print_mask_arg(sysdecode_wait6_options, *ip);
 895                                 ip++;
 896                                 narg--;
 897                                 break;
 898                         case SYS_chmod:
 899                         case SYS_fchmod:
 900                         case SYS_lchmod:
 901                         case SYS_fchmodat:
 902                                 print_number(ip, narg, c);
 903                                 putchar(',');
 904                                 decode_filemode(*ip);
 905                                 ip++;
 906                                 narg--;
 907                                 break;
 908                         case SYS_mknodat:
 909                                 print_number(ip, narg, c);
 910                                 putchar(',');
 911                                 decode_filemode(*ip);
 912                                 ip++;
 913                                 narg--;
 914                                 break;
 915                         case SYS_getfsstat:
 916                                 print_number(ip, narg, c);
 917                                 print_number(ip, narg, c);
 918                                 putchar(',');
 919                                 print_integer_arg(sysdecode_getfsstat_mode, *ip);
 920                                 ip++;
 921                                 narg--;
 922                                 break;
 923                         case SYS_mount:
 924                                 print_number(ip, narg, c);
 925                                 print_number(ip, narg, c);
 926                                 putchar(',');
 927                                 print_mask_arg(sysdecode_mount_flags, *ip);
 928                                 ip++;
 929                                 narg--;
 930                                 break;
 931                         case SYS_unmount:
 932                                 print_number(ip, narg, c);
 933                                 putchar(',');
 934                                 print_mask_arg(sysdecode_mount_flags, *ip);
 935                                 ip++;
 936                                 narg--;
 937                                 break;
 938                         case SYS_recvmsg:
 939                         case SYS_sendmsg:
 940                                 print_number(ip, narg, c);
 941                                 print_number(ip, narg, c);
 942                                 putchar(',');
 943                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 944                                 ip++;
 945                                 narg--;
 946                                 break;
 947                         case SYS_recvfrom:
 948                         case SYS_sendto:
 949                                 print_number(ip, narg, c);
 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_chflags:
 958                         case SYS_chflagsat:
 959                         case SYS_fchflags:
 960                         case SYS_lchflags:
 961                                 print_number(ip, narg, c);
 962                                 putchar(',');
 963                                 decode_fileflags(*ip);
 964                                 ip++;
 965                                 narg--;
 966                                 break;
 967                         case SYS_kill:
 968                                 print_number(ip, narg, c);
 969                                 putchar(',');
 970                                 print_signal(*ip);
 971                                 ip++;
 972                                 narg--;
 973                                 break;
 974                         case SYS_reboot:
 975                                 putchar('(');
 976                                 print_mask_arg(sysdecode_reboot_howto, *ip);
 977                                 ip++;
 978                                 narg--;
 979                                 break;
 980                         case SYS_umask:
 981                                 putchar('(');
 982                                 decode_filemode(*ip);
 983                                 ip++;
 984                                 narg--;
 985                                 break;
 986                         case SYS_msync:
 987                                 print_number(ip, narg, c);
 988                                 print_number(ip, narg, c);
 989                                 putchar(',');
 990                                 print_mask_arg(sysdecode_msync_flags, *ip);
 991                                 ip++;
 992                                 narg--;
 993                                 break;
 994 #ifdef SYS_freebsd6_mmap
 995                         case SYS_freebsd6_mmap:
 996                                 print_number(ip, narg, c);
 997                                 print_number(ip, narg, c);
 998                                 putchar(',');
 999                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1000                                 putchar(',');
1001                                 ip++;
1002                                 narg--;
1003                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1004                                 ip++;
1005                                 narg--;
1006                                 break;
1007 #endif
1008                         case SYS_mmap:
1009                                 print_number(ip, narg, c);
1010                                 print_number(ip, narg, c);
1011                                 putchar(',');
1012                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1013                                 putchar(',');
1014                                 ip++;
1015                                 narg--;
1016                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1017                                 ip++;
1018                                 narg--;
1019                                 break;
1020                         case SYS_mprotect:
1021                                 print_number(ip, narg, c);
1022                                 print_number(ip, narg, c);
1023                                 putchar(',');
1024                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1025                                 ip++;
1026                                 narg--;
1027                                 break;
1028                         case SYS_madvise:
1029                                 print_number(ip, narg, c);
1030                                 print_number(ip, narg, c);
1031                                 putchar(',');
1032                                 print_integer_arg(sysdecode_madvice, *ip);
1033                                 ip++;
1034                                 narg--;
1035                                 break;
1036                         case SYS_pathconf:
1037                         case SYS_lpathconf:
1038                         case SYS_fpathconf:
1039                                 print_number(ip, narg, c);
1040                                 putchar(',');
1041                                 print_integer_arg(sysdecode_pathconf_name, *ip);
1042                                 ip++;
1043                                 narg--;
1044                                 break;
1045                         case SYS_getpriority:
1046                         case SYS_setpriority:
1047                                 putchar('(');
1048                                 print_integer_arg(sysdecode_prio_which, *ip);
1049                                 c = ',';
1050                                 ip++;
1051                                 narg--;
1052                                 break;
1053                         case SYS_fcntl:
1054                                 print_number(ip, narg, c);
1055                                 putchar(',');
1056                                 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1057                                 if (sysdecode_fcntl_arg_p(ip[0])) {
1058                                         putchar(',');
1059                                         if (ip[0] == F_SETFL)
1060                                                 print_mask_arg(
1061                                                     sysdecode_fcntl_fileflags,
1062                                                         ip[1]);
1063                                         else
1064                                                 sysdecode_fcntl_arg(stdout,
1065                                                     ip[0], ip[1],
1066                                                     decimal ? 10 : 16);
1067                                 }
1068                                 ip += 2;
1069                                 narg -= 2;
1070                                 break;
1071                         case SYS_socket: {
1072                                 int sockdomain;
1073                                 putchar('(');
1074                                 sockdomain = *ip;
1075                                 print_integer_arg(sysdecode_socketdomain,
1076                                     sockdomain);
1077                                 ip++;
1078                                 narg--;
1079                                 putchar(',');
1080                                 print_mask_arg(sysdecode_socket_type, *ip);
1081                                 ip++;
1082                                 narg--;
1083                                 if (sockdomain == PF_INET ||
1084                                     sockdomain == PF_INET6) {
1085                                         putchar(',');
1086                                         print_integer_arg(sysdecode_ipproto,
1087                                             *ip);
1088                                         ip++;
1089                                         narg--;
1090                                 }
1091                                 c = ',';
1092                                 break;
1093                         }
1094                         case SYS_setsockopt:
1095                         case SYS_getsockopt: {
1096                                 const char *str;
1097
1098                                 print_number(ip, narg, c);
1099                                 putchar(',');
1100                                 print_integer_arg_valid(sysdecode_sockopt_level,
1101                                     *ip);
1102                                 str = sysdecode_sockopt_name(ip[0], ip[1]);
1103                                 if (str != NULL) {
1104                                         printf(",%s", str);
1105                                         ip++;
1106                                         narg--;
1107                                 }
1108                                 ip++;
1109                                 narg--;
1110                                 break;
1111                         }
1112 #ifdef SYS_freebsd6_lseek
1113                         case SYS_freebsd6_lseek:
1114                                 print_number(ip, narg, c);
1115                                 /* Hidden 'pad' argument, not in lseek(2) */
1116                                 print_number(ip, narg, c);
1117                                 print_number64(first, ip, narg, c);
1118                                 putchar(',');
1119                                 print_integer_arg(sysdecode_whence, *ip);
1120                                 ip++;
1121                                 narg--;
1122                                 break;
1123 #endif
1124                         case SYS_lseek:
1125                                 print_number(ip, narg, c);
1126                                 print_number64(first, ip, narg, c);
1127                                 putchar(',');
1128                                 print_integer_arg(sysdecode_whence, *ip);
1129                                 ip++;
1130                                 narg--;
1131                                 break;
1132                         case SYS_flock:
1133                                 print_number(ip, narg, c);
1134                                 putchar(',');
1135                                 print_mask_arg(sysdecode_flock_operation, *ip);
1136                                 ip++;
1137                                 narg--;
1138                                 break;
1139                         case SYS_mkfifo:
1140                         case SYS_mkfifoat:
1141                         case SYS_mkdir:
1142                         case SYS_mkdirat:
1143                                 print_number(ip, narg, c);
1144                                 putchar(',');
1145                                 decode_filemode(*ip);
1146                                 ip++;
1147                                 narg--;
1148                                 break;
1149                         case SYS_shutdown:
1150                                 print_number(ip, narg, c);
1151                                 putchar(',');
1152                                 print_integer_arg(sysdecode_shutdown_how, *ip);
1153                                 ip++;
1154                                 narg--;
1155                                 break;
1156                         case SYS_socketpair:
1157                                 putchar('(');
1158                                 print_integer_arg(sysdecode_socketdomain, *ip);
1159                                 ip++;
1160                                 narg--;
1161                                 putchar(',');
1162                                 print_mask_arg(sysdecode_socket_type, *ip);
1163                                 ip++;
1164                                 narg--;
1165                                 c = ',';
1166                                 break;
1167                         case SYS_getrlimit:
1168                         case SYS_setrlimit:
1169                                 putchar('(');
1170                                 print_integer_arg(sysdecode_rlimit, *ip);
1171                                 ip++;
1172                                 narg--;
1173                                 c = ',';
1174                                 break;
1175                         case SYS_getrusage:
1176                                 putchar('(');
1177                                 print_integer_arg(sysdecode_getrusage_who, *ip);
1178                                 ip++;
1179                                 narg--;
1180                                 c = ',';
1181                                 break;
1182                         case SYS_quotactl:
1183                                 print_number(ip, narg, c);
1184                                 putchar(',');
1185                                 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1186                                         if (decimal)
1187                                                 printf("<invalid=%d>", (int)*ip);
1188                                         else
1189                                                 printf("<invalid=%#x>",
1190                                                     (int)*ip);
1191                                 }
1192                                 ip++;
1193                                 narg--;
1194                                 c = ',';
1195                                 break;
1196                         case SYS_nfssvc:
1197                                 putchar('(');
1198                                 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1199                                 ip++;
1200                                 narg--;
1201                                 c = ',';
1202                                 break;
1203                         case SYS_rtprio:
1204                         case SYS_rtprio_thread:
1205                                 putchar('(');
1206                                 print_integer_arg(sysdecode_rtprio_function,
1207                                     *ip);
1208                                 ip++;
1209                                 narg--;
1210                                 c = ',';
1211                                 break;
1212                         case SYS___semctl:
1213                                 print_number(ip, narg, c);
1214                                 print_number(ip, narg, c);
1215                                 putchar(',');
1216                                 print_integer_arg(sysdecode_semctl_cmd, *ip);
1217                                 ip++;
1218                                 narg--;
1219                                 break;
1220                         case SYS_semget:
1221                                 print_number(ip, narg, c);
1222                                 print_number(ip, narg, c);
1223                                 putchar(',');
1224                                 print_mask_arg(sysdecode_semget_flags, *ip);
1225                                 ip++;
1226                                 narg--;
1227                                 break;
1228                         case SYS_msgctl:
1229                                 print_number(ip, narg, c);
1230                                 putchar(',');
1231                                 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1232                                 ip++;
1233                                 narg--;
1234                                 break;
1235                         case SYS_shmat:
1236                                 print_number(ip, narg, c);
1237                                 print_number(ip, narg, c);
1238                                 putchar(',');
1239                                 print_mask_arg(sysdecode_shmat_flags, *ip);
1240                                 ip++;
1241                                 narg--;
1242                                 break;
1243                         case SYS_shmctl:
1244                                 print_number(ip, narg, c);
1245                                 putchar(',');
1246                                 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1247                                 ip++;
1248                                 narg--;
1249                                 break;
1250 #ifdef SYS_freebsd12_shm_open
1251                         case SYS_freebsd12_shm_open:
1252                                 if (ip[0] == (uintptr_t)SHM_ANON) {
1253                                         printf("(SHM_ANON");
1254                                         ip++;
1255                                 } else {
1256                                         print_number(ip, narg, c);
1257                                 }
1258                                 putchar(',');
1259                                 print_mask_arg(sysdecode_open_flags, ip[0]);
1260                                 putchar(',');
1261                                 decode_filemode(ip[1]);
1262                                 ip += 2;
1263                                 narg -= 2;
1264                                 break;
1265 #endif
1266                         case SYS_shm_open2:
1267                                 if (ip[0] == (uintptr_t)SHM_ANON) {
1268                                         printf("(SHM_ANON");
1269                                         ip++;
1270                                 } else {
1271                                         print_number(ip, narg, c);
1272                                 }
1273                                 putchar(',');
1274                                 print_mask_arg(sysdecode_open_flags, ip[0]);
1275                                 putchar(',');
1276                                 decode_filemode(ip[1]);
1277                                 putchar(',');
1278                                 print_mask_arg(sysdecode_shmflags, ip[2]);
1279                                 ip += 3;
1280                                 narg -= 3;
1281                                 break;
1282                         case SYS_minherit:
1283                                 print_number(ip, narg, c);
1284                                 print_number(ip, narg, c);
1285                                 putchar(',');
1286                                 print_integer_arg(sysdecode_minherit_inherit,
1287                                     *ip);
1288                                 ip++;
1289                                 narg--;
1290                                 break;
1291                         case SYS_rfork:
1292                                 putchar('(');
1293                                 print_mask_arg(sysdecode_rfork_flags, *ip);
1294                                 ip++;
1295                                 narg--;
1296                                 c = ',';
1297                                 break;
1298                         case SYS_lio_listio:
1299                                 putchar('(');
1300                                 print_integer_arg(sysdecode_lio_listio_mode,
1301                                     *ip);
1302                                 ip++;
1303                                 narg--;
1304                                 c = ',';
1305                                 break;
1306                         case SYS_mlockall:
1307                                 putchar('(');
1308                                 print_mask_arg(sysdecode_mlockall_flags, *ip);
1309                                 ip++;
1310                                 narg--;
1311                                 break;
1312                         case SYS_sched_setscheduler:
1313                                 print_number(ip, narg, c);
1314                                 putchar(',');
1315                                 print_integer_arg(sysdecode_scheduler_policy,
1316                                     *ip);
1317                                 ip++;
1318                                 narg--;
1319                                 break;
1320                         case SYS_sched_get_priority_max:
1321                         case SYS_sched_get_priority_min:
1322                                 putchar('(');
1323                                 print_integer_arg(sysdecode_scheduler_policy,
1324                                     *ip);
1325                                 ip++;
1326                                 narg--;
1327                                 break;
1328                         case SYS_sendfile:
1329                                 print_number(ip, narg, c);
1330                                 print_number(ip, narg, c);
1331                                 print_number(ip, narg, c);
1332                                 print_number(ip, narg, c);
1333                                 print_number(ip, narg, c);
1334                                 print_number(ip, narg, c);
1335                                 putchar(',');
1336                                 print_mask_arg(sysdecode_sendfile_flags, *ip);
1337                                 ip++;
1338                                 narg--;
1339                                 break;
1340                         case SYS_kldsym:
1341                                 print_number(ip, narg, c);
1342                                 putchar(',');
1343                                 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1344                                 ip++;
1345                                 narg--;
1346                                 break;
1347                         case SYS_sigprocmask:
1348                                 putchar('(');
1349                                 print_integer_arg(sysdecode_sigprocmask_how,
1350                                     *ip);
1351                                 ip++;
1352                                 narg--;
1353                                 c = ',';
1354                                 break;
1355                         case SYS___acl_get_file:
1356                         case SYS___acl_set_file:
1357                         case SYS___acl_get_fd:
1358                         case SYS___acl_set_fd:
1359                         case SYS___acl_delete_file:
1360                         case SYS___acl_delete_fd:
1361                         case SYS___acl_aclcheck_file:
1362                         case SYS___acl_aclcheck_fd:
1363                         case SYS___acl_get_link:
1364                         case SYS___acl_set_link:
1365                         case SYS___acl_delete_link:
1366                         case SYS___acl_aclcheck_link:
1367                                 print_number(ip, narg, c);
1368                                 putchar(',');
1369                                 print_integer_arg(sysdecode_acltype, *ip);
1370                                 ip++;
1371                                 narg--;
1372                                 break;
1373                         case SYS_sigaction:
1374                                 putchar('(');
1375                                 print_signal(*ip);
1376                                 ip++;
1377                                 narg--;
1378                                 c = ',';
1379                                 break;
1380                         case SYS_extattrctl:
1381                                 print_number(ip, narg, c);
1382                                 putchar(',');
1383                                 print_integer_arg(sysdecode_extattrnamespace,
1384                                     *ip);
1385                                 ip++;
1386                                 narg--;
1387                                 break;
1388                         case SYS_nmount:
1389                                 print_number(ip, narg, c);
1390                                 print_number(ip, narg, c);
1391                                 putchar(',');
1392                                 print_mask_arg(sysdecode_mount_flags, *ip);
1393                                 ip++;
1394                                 narg--;
1395                                 break;
1396                         case SYS_thr_create:
1397                                 print_number(ip, narg, c);
1398                                 print_number(ip, narg, c);
1399                                 putchar(',');
1400                                 print_mask_arg(sysdecode_thr_create_flags, *ip);
1401                                 ip++;
1402                                 narg--;
1403                                 break;
1404                         case SYS_thr_kill:
1405                                 print_number(ip, narg, c);
1406                                 putchar(',');
1407                                 print_signal(*ip);
1408                                 ip++;
1409                                 narg--;
1410                                 break;
1411                         case SYS_kldunloadf:
1412                                 print_number(ip, narg, c);
1413                                 putchar(',');
1414                                 print_integer_arg(sysdecode_kldunload_flags,
1415                                     *ip);
1416                                 ip++;
1417                                 narg--;
1418                                 break;
1419                         case SYS_linkat:
1420                         case SYS_renameat:
1421                         case SYS_symlinkat:
1422                                 print_number(ip, narg, c);
1423                                 putchar(',');
1424                                 print_integer_arg_valid(sysdecode_atfd, *ip);
1425                                 ip++;
1426                                 narg--;
1427                                 print_number(ip, narg, c);
1428                                 break;
1429                         case SYS_cap_fcntls_limit:
1430                                 print_number(ip, narg, c);
1431                                 putchar(',');
1432                                 arg = *ip;
1433                                 ip++;
1434                                 narg--;
1435                                 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1436                                 break;
1437                         case SYS_posix_fadvise:
1438                                 print_number(ip, narg, c);
1439                                 print_number(ip, narg, c);
1440                                 print_number(ip, narg, c);
1441                                 (void)putchar(',');
1442                                 print_integer_arg(sysdecode_fadvice, *ip);
1443                                 ip++;
1444                                 narg--;
1445                                 break;
1446                         case SYS_procctl:
1447                                 putchar('(');
1448                                 print_integer_arg(sysdecode_idtype, *ip);
1449                                 c = ',';
1450                                 ip++;
1451                                 narg--;
1452                                 print_number64(first, ip, narg, c);
1453                                 putchar(',');
1454                                 print_integer_arg(sysdecode_procctl_cmd, *ip);
1455                                 ip++;
1456                                 narg--;
1457                                 break;
1458                         case SYS__umtx_op:
1459                                 print_number(ip, narg, c);
1460                                 putchar(',');
1461                                 print_integer_arg(sysdecode_umtx_op, *ip);
1462                                 switch (*ip) {
1463                                 case UMTX_OP_CV_WAIT:
1464                                         ip++;
1465                                         narg--;
1466                                         putchar(',');
1467                                         print_mask_argul(
1468                                             sysdecode_umtx_cvwait_flags, *ip);
1469                                         break;
1470                                 case UMTX_OP_RW_RDLOCK:
1471                                         ip++;
1472                                         narg--;
1473                                         putchar(',');
1474                                         print_mask_argul(
1475                                             sysdecode_umtx_rwlock_flags, *ip);
1476                                         break;
1477                                 }
1478                                 ip++;
1479                                 narg--;
1480                                 break;
1481                         case SYS_ftruncate:
1482                         case SYS_truncate:
1483                                 print_number(ip, narg, c);
1484                                 print_number64(first, ip, narg, c);
1485                                 break;
1486                         case SYS_fchownat:
1487                                 print_number(ip, narg, c);
1488                                 print_number(ip, narg, c);
1489                                 print_number(ip, narg, c);
1490                                 break;
1491                         case SYS_fstatat:
1492                         case SYS_utimensat:
1493                                 print_number(ip, narg, c);
1494                                 print_number(ip, narg, c);
1495                                 break;
1496                         case SYS_unlinkat:
1497                                 print_number(ip, narg, c);
1498                                 break;
1499                         case SYS_sysarch:
1500                                 putchar('(');
1501                                 print_integer_arg(sysdecode_sysarch_number, *ip);
1502                                 ip++;
1503                                 narg--;
1504                                 c = ',';
1505                                 break;
1506                         }
1507                         switch (ktr->ktr_code) {
1508                         case SYS_chflagsat:
1509                         case SYS_fchownat:
1510                         case SYS_faccessat:
1511                         case SYS_fchmodat:
1512                         case SYS_fstatat:
1513                         case SYS_linkat:
1514                         case SYS_unlinkat:
1515                         case SYS_utimensat:
1516                                 putchar(',');
1517                                 print_mask_arg0(sysdecode_atflags, *ip);
1518                                 ip++;
1519                                 narg--;
1520                                 break;
1521                         }
1522                 }
1523                 while (narg > 0) {
1524                         print_number(ip, narg, c);
1525                 }
1526                 putchar(')');
1527         }
1528         putchar('\n');
1529 }
1530
1531 void
1532 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1533 {
1534         register_t ret = ktr->ktr_retval;
1535         int error = ktr->ktr_error;
1536
1537         syscallname(ktr->ktr_code, sv_flags);
1538         printf(" ");
1539
1540         if (error == 0) {
1541                 if (fancy) {
1542                         printf("%ld", (long)ret);
1543                         if (ret < 0 || ret > 9)
1544                                 printf("/%#lx", (unsigned long)ret);
1545                 } else {
1546                         if (decimal)
1547                                 printf("%ld", (long)ret);
1548                         else
1549                                 printf("%#lx", (unsigned long)ret);
1550                 }
1551         } else if (error == ERESTART)
1552                 printf("RESTART");
1553         else if (error == EJUSTRETURN)
1554                 printf("JUSTRETURN");
1555         else {
1556                 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1557                     syscallabi(sv_flags), error));
1558                 if (fancy)
1559                         printf(" %s", strerror(ktr->ktr_error));
1560         }
1561         putchar('\n');
1562 }
1563
1564 void
1565 ktrnamei(char *cp, int len)
1566 {
1567         printf("\"%.*s\"\n", len, cp);
1568 }
1569
1570 void
1571 hexdump(char *p, int len, int screenwidth)
1572 {
1573         int n, i;
1574         int width;
1575
1576         width = 0;
1577         do {
1578                 width += 2;
1579                 i = 13;                 /* base offset */
1580                 i += (width / 2) + 1;   /* spaces every second byte */
1581                 i += (width * 2);       /* width of bytes */
1582                 i += 3;                 /* "  |" */
1583                 i += width;             /* each byte */
1584                 i += 1;                 /* "|" */
1585         } while (i < screenwidth);
1586         width -= 2;
1587
1588         for (n = 0; n < len; n += width) {
1589                 for (i = n; i < n + width; i++) {
1590                         if ((i % width) == 0) { /* beginning of line */
1591                                 printf("       0x%04x", i);
1592                         }
1593                         if ((i % 2) == 0) {
1594                                 printf(" ");
1595                         }
1596                         if (i < len)
1597                                 printf("%02x", p[i] & 0xff);
1598                         else
1599                                 printf("  ");
1600                 }
1601                 printf("  |");
1602                 for (i = n; i < n + width; i++) {
1603                         if (i >= len)
1604                                 break;
1605                         if (p[i] >= ' ' && p[i] <= '~')
1606                                 printf("%c", p[i]);
1607                         else
1608                                 printf(".");
1609                 }
1610                 printf("|\n");
1611         }
1612         if ((i % width) != 0)
1613                 printf("\n");
1614 }
1615
1616 void
1617 visdump(char *dp, int datalen, int screenwidth)
1618 {
1619         int col = 0;
1620         char *cp;
1621         int width;
1622         char visbuf[5];
1623
1624         printf("       \"");
1625         col = 8;
1626         for (;datalen > 0; datalen--, dp++) {
1627                  vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1628                 cp = visbuf;
1629                 /*
1630                  * Keep track of printables and
1631                  * space chars (like fold(1)).
1632                  */
1633                 if (col == 0) {
1634                         putchar('\t');
1635                         col = 8;
1636                 }
1637                 switch(*cp) {
1638                 case '\n':
1639                         col = 0;
1640                         putchar('\n');
1641                         continue;
1642                 case '\t':
1643                         width = 8 - (col&07);
1644                         break;
1645                 default:
1646                         width = strlen(cp);
1647                 }
1648                 if (col + width > (screenwidth-2)) {
1649                         printf("\\\n\t");
1650                         col = 8;
1651                 }
1652                 col += width;
1653                 do {
1654                         putchar(*cp++);
1655                 } while (*cp);
1656         }
1657         if (col == 0)
1658                 printf("       ");
1659         printf("\"\n");
1660 }
1661
1662 void
1663 ktrgenio(struct ktr_genio *ktr, int len)
1664 {
1665         int datalen = len - sizeof (struct ktr_genio);
1666         char *dp = (char *)ktr + sizeof (struct ktr_genio);
1667         static int screenwidth = 0;
1668         int i, binary;
1669
1670         printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1671                 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1672                 datalen == 1 ? "" : "s");
1673         if (suppressdata)
1674                 return;
1675         if (screenwidth == 0) {
1676                 struct winsize ws;
1677
1678                 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1679                     ws.ws_col > 8)
1680                         screenwidth = ws.ws_col;
1681                 else
1682                         screenwidth = 80;
1683         }
1684         if (maxdata && datalen > maxdata)
1685                 datalen = maxdata;
1686
1687         for (i = 0, binary = 0; i < datalen && binary == 0; i++)  {
1688                 if (dp[i] >= 32 && dp[i] < 127)
1689                         continue;
1690                 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1691                         continue;
1692                 binary = 1;
1693         }
1694         if (binary)
1695                 hexdump(dp, datalen, screenwidth);
1696         else
1697                 visdump(dp, datalen, screenwidth);
1698 }
1699
1700 void
1701 ktrpsig(struct ktr_psig *psig)
1702 {
1703         const char *str;
1704
1705         print_signal(psig->signo);
1706         if (psig->action == SIG_DFL) {
1707                 printf(" SIG_DFL");
1708         } else {
1709                 printf(" caught handler=0x%lx mask=0x%x",
1710                     (u_long)psig->action, psig->mask.__bits[0]);
1711         }
1712         printf(" code=");
1713         str = sysdecode_sigcode(psig->signo, psig->code);
1714         if (str != NULL)
1715                 printf("%s", str);
1716         else
1717                 printf("<invalid=%#x>", psig->code);
1718         putchar('\n');
1719 }
1720
1721 void
1722 ktrcsw_old(struct ktr_csw_old *cs)
1723 {
1724         printf("%s %s\n", cs->out ? "stop" : "resume",
1725                 cs->user ? "user" : "kernel");
1726 }
1727
1728 void
1729 ktrcsw(struct ktr_csw *cs)
1730 {
1731         printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1732             cs->user ? "user" : "kernel", cs->wmesg);
1733 }
1734
1735 void
1736 ktruser(int len, void *p)
1737 {
1738         unsigned char *cp;
1739
1740         if (sysdecode_utrace(stdout, p, len)) {
1741                 printf("\n");
1742                 return;
1743         }
1744
1745         printf("%d ", len);
1746         cp = p;
1747         while (len--)
1748                 if (decimal)
1749                         printf(" %d", *cp++);
1750                 else
1751                         printf(" %02x", *cp++);
1752         printf("\n");
1753 }
1754
1755 void
1756 ktrcaprights(cap_rights_t *rightsp)
1757 {
1758
1759         printf("cap_rights_t ");
1760         sysdecode_cap_rights(stdout, rightsp);
1761         printf("\n");
1762 }
1763
1764 static void
1765 ktrtimeval(struct timeval *tv)
1766 {
1767
1768         printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1769 }
1770
1771 void
1772 ktritimerval(struct itimerval *it)
1773 {
1774
1775         printf("itimerval { .interval = ");
1776         ktrtimeval(&it->it_interval);
1777         printf(", .value = ");
1778         ktrtimeval(&it->it_value);
1779         printf(" }\n");
1780 }
1781
1782 void
1783 ktrsockaddr(struct sockaddr *sa)
1784 {
1785 /*
1786  TODO: Support additional address families
1787         #include <netsmb/netbios.h>
1788         struct sockaddr_nb      *nb;
1789 */
1790         const char *str;
1791         char addr[64];
1792
1793         /*
1794          * note: ktrstruct() has already verified that sa points to a
1795          * buffer at least sizeof(struct sockaddr) bytes long and exactly
1796          * sa->sa_len bytes long.
1797          */
1798         printf("struct sockaddr { ");
1799         str = sysdecode_sockaddr_family(sa->sa_family);
1800         if (str != NULL)
1801                 printf("%s", str);
1802         else
1803                 printf("<invalid=%d>", sa->sa_family);
1804         printf(", ");
1805
1806 #define check_sockaddr_len(n)                                   \
1807         if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) {  \
1808                 printf("invalid");                              \
1809                 break;                                          \
1810         }
1811
1812         switch(sa->sa_family) {
1813         case AF_INET: {
1814                 struct sockaddr_in sa_in;
1815
1816                 memset(&sa_in, 0, sizeof(sa_in));
1817                 memcpy(&sa_in, sa, sa->sa_len);
1818                 check_sockaddr_len(in);
1819                 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1820                 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1821                 break;
1822         }
1823         case AF_INET6: {
1824                 struct sockaddr_in6 sa_in6;
1825
1826                 memset(&sa_in6, 0, sizeof(sa_in6));
1827                 memcpy(&sa_in6, sa, sa->sa_len);
1828                 check_sockaddr_len(in6);
1829                 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1830                     addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1831                 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1832                 break;
1833         }
1834         case AF_UNIX: {
1835                 struct sockaddr_un sa_un;
1836
1837                 memset(&sa_un, 0, sizeof(sa_un));
1838                 memcpy(&sa_un, sa, sa->sa_len);
1839                 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1840                 break;
1841         }
1842         default:
1843                 printf("unknown address family");
1844         }
1845         printf(" }\n");
1846 }
1847
1848 void
1849 ktrstat(struct stat *statp)
1850 {
1851         char mode[12], timestr[PATH_MAX + 4];
1852         struct passwd *pwd;
1853         struct group  *grp;
1854         struct tm *tm;
1855
1856         /*
1857          * note: ktrstruct() has already verified that statp points to a
1858          * buffer exactly sizeof(struct stat) bytes long.
1859          */
1860         printf("struct stat {");
1861         printf("dev=%ju, ino=%ju, ",
1862                 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1863         if (!resolv)
1864                 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1865         else {
1866                 strmode(statp->st_mode, mode);
1867                 printf("mode=%s, ", mode);
1868         }
1869         printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1870         if (!resolv) {
1871                 pwd = NULL;
1872         } else {
1873 #ifdef WITH_CASPER
1874                 if (cappwd != NULL)
1875                         pwd = cap_getpwuid(cappwd, statp->st_uid);
1876                 else
1877 #endif
1878                         pwd = getpwuid(statp->st_uid);
1879         }
1880         if (pwd == NULL)
1881                 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1882         else
1883                 printf("uid=\"%s\", ", pwd->pw_name);
1884         if (!resolv) {
1885                 grp = NULL;
1886         } else {
1887 #ifdef WITH_CASPER
1888                 if (capgrp != NULL)
1889                         grp = cap_getgrgid(capgrp, statp->st_gid);
1890                 else
1891 #endif
1892                         grp = getgrgid(statp->st_gid);
1893         }
1894         if (grp == NULL)
1895                 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1896         else
1897                 printf("gid=\"%s\", ", grp->gr_name);
1898         printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1899         printf("atime=");
1900         if (!resolv)
1901                 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1902         else {
1903                 tm = localtime(&statp->st_atim.tv_sec);
1904                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1905                 printf("\"%s\"", timestr);
1906         }
1907         if (statp->st_atim.tv_nsec != 0)
1908                 printf(".%09ld, ", statp->st_atim.tv_nsec);
1909         else
1910                 printf(", ");
1911         printf("mtime=");
1912         if (!resolv)
1913                 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1914         else {
1915                 tm = localtime(&statp->st_mtim.tv_sec);
1916                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1917                 printf("\"%s\"", timestr);
1918         }
1919         if (statp->st_mtim.tv_nsec != 0)
1920                 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1921         else
1922                 printf(", ");
1923         printf("ctime=");
1924         if (!resolv)
1925                 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1926         else {
1927                 tm = localtime(&statp->st_ctim.tv_sec);
1928                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1929                 printf("\"%s\"", timestr);
1930         }
1931         if (statp->st_ctim.tv_nsec != 0)
1932                 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1933         else
1934                 printf(", ");
1935         printf("birthtime=");
1936         if (!resolv)
1937                 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1938         else {
1939                 tm = localtime(&statp->st_birthtim.tv_sec);
1940                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1941                 printf("\"%s\"", timestr);
1942         }
1943         if (statp->st_birthtim.tv_nsec != 0)
1944                 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1945         else
1946                 printf(", ");
1947         printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1948                 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1949                 (intmax_t)statp->st_blocks, statp->st_flags);
1950         printf(" }\n");
1951 }
1952
1953 void
1954 ktrstruct(char *buf, size_t buflen)
1955 {
1956         char *name, *data;
1957         size_t namelen, datalen;
1958         int i;
1959         cap_rights_t rights;
1960         struct itimerval it;
1961         struct stat sb;
1962         struct sockaddr_storage ss;
1963
1964         for (name = buf, namelen = 0;
1965              namelen < buflen && name[namelen] != '\0';
1966              ++namelen)
1967                 /* nothing */;
1968         if (namelen == buflen)
1969                 goto invalid;
1970         if (name[namelen] != '\0')
1971                 goto invalid;
1972         data = buf + namelen + 1;
1973         datalen = buflen - namelen - 1;
1974         if (datalen == 0)
1975                 goto invalid;
1976         /* sanity check */
1977         for (i = 0; i < (int)namelen; ++i)
1978                 if (!isalpha(name[i]))
1979                         goto invalid;
1980         if (strcmp(name, "caprights") == 0) {
1981                 if (datalen != sizeof(cap_rights_t))
1982                         goto invalid;
1983                 memcpy(&rights, data, datalen);
1984                 ktrcaprights(&rights);
1985         } else if (strcmp(name, "itimerval") == 0) {
1986                 if (datalen != sizeof(struct itimerval))
1987                         goto invalid;
1988                 memcpy(&it, data, datalen);
1989                 ktritimerval(&it);
1990         } else if (strcmp(name, "stat") == 0) {
1991                 if (datalen != sizeof(struct stat))
1992                         goto invalid;
1993                 memcpy(&sb, data, datalen);
1994                 ktrstat(&sb);
1995         } else if (strcmp(name, "sockaddr") == 0) {
1996                 if (datalen > sizeof(ss))
1997                         goto invalid;
1998                 memcpy(&ss, data, datalen);
1999                 if (datalen != ss.ss_len)
2000                         goto invalid;
2001                 ktrsockaddr((struct sockaddr *)&ss);
2002         } else {
2003                 printf("unknown structure\n");
2004         }
2005         return;
2006 invalid:
2007         printf("invalid record\n");
2008 }
2009
2010 void
2011 ktrcapfail(struct ktr_cap_fail *ktr)
2012 {
2013         switch (ktr->cap_type) {
2014         case CAPFAIL_NOTCAPABLE:
2015                 /* operation on fd with insufficient capabilities */
2016                 printf("operation requires ");
2017                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2018                 printf(", descriptor holds ");
2019                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2020                 break;
2021         case CAPFAIL_INCREASE:
2022                 /* requested more capabilities than fd already has */
2023                 printf("attempt to increase capabilities from ");
2024                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2025                 printf(" to ");
2026                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2027                 break;
2028         case CAPFAIL_SYSCALL:
2029                 /* called restricted syscall */
2030                 printf("disallowed system call");
2031                 break;
2032         case CAPFAIL_LOOKUP:
2033                 /* absolute or AT_FDCWD path, ".." path, etc. */
2034                 printf("restricted VFS lookup");
2035                 break;
2036         default:
2037                 printf("unknown capability failure: ");
2038                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2039                 printf(" ");
2040                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2041                 break;
2042         }
2043         printf("\n");
2044 }
2045
2046 void
2047 ktrfault(struct ktr_fault *ktr)
2048 {
2049
2050         printf("0x%jx ", (uintmax_t)ktr->vaddr);
2051         print_mask_arg(sysdecode_vmprot, ktr->type);
2052         printf("\n");
2053 }
2054
2055 void
2056 ktrfaultend(struct ktr_faultend *ktr)
2057 {
2058         const char *str;
2059
2060         str = sysdecode_vmresult(ktr->result);
2061         if (str != NULL)
2062                 printf("%s", str);
2063         else
2064                 printf("<invalid=%d>", ktr->result);
2065         printf("\n");
2066 }
2067
2068 void
2069 ktrkevent(struct kevent *kev)
2070 {
2071
2072         printf("{ ident=");
2073         switch (kev->filter) {
2074         case EVFILT_READ:
2075         case EVFILT_WRITE:
2076         case EVFILT_VNODE:
2077         case EVFILT_PROC:
2078         case EVFILT_TIMER:
2079         case EVFILT_PROCDESC:
2080         case EVFILT_EMPTY:
2081                 printf("%ju", (uintmax_t)kev->ident);
2082                 break;
2083         case EVFILT_SIGNAL:
2084                 print_signal(kev->ident);
2085                 break;
2086         default:
2087                 printf("%p", (void *)kev->ident);
2088         }
2089         printf(", filter=");
2090         print_integer_arg(sysdecode_kevent_filter, kev->filter);
2091         printf(", flags=");
2092         print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2093         printf(", fflags=");
2094         sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2095             decimal ? 10 : 16);
2096         printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2097 }
2098
2099 void
2100 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2101 {
2102         struct kevent kev;
2103         char *name, *data;
2104         size_t namelen, datalen;
2105         int i;
2106         bool first;
2107
2108         buflen -= sizeof(*ksa);
2109         for (name = (char *)(ksa + 1), namelen = 0;
2110              namelen < buflen && name[namelen] != '\0';
2111              ++namelen)
2112                 /* nothing */;
2113         if (namelen == buflen)
2114                 goto invalid;
2115         if (name[namelen] != '\0')
2116                 goto invalid;
2117         /* sanity check */
2118         for (i = 0; i < (int)namelen; ++i)
2119                 if (!isalnum(name[i]) && name[i] != '_')
2120                         goto invalid;
2121         data = name + namelen + 1;
2122         datalen = buflen - namelen - 1;
2123         printf("struct %s[] = { ", name);
2124         first = true;
2125         for (; datalen >= ksa->struct_size;
2126             data += ksa->struct_size, datalen -= ksa->struct_size) {
2127                 if (!first)
2128                         printf("\n             ");
2129                 else
2130                         first = false;
2131                 if (strcmp(name, "kevent") == 0) {
2132                         if (ksa->struct_size != sizeof(kev))
2133                                 goto bad_size;
2134                         memcpy(&kev, data, sizeof(kev));
2135                         ktrkevent(&kev);
2136                 } else if (strcmp(name, "kevent_freebsd11") == 0) {
2137                         struct kevent_freebsd11 kev11;
2138
2139                         if (ksa->struct_size != sizeof(kev11))
2140                                 goto bad_size;
2141                         memcpy(&kev11, data, sizeof(kev11));
2142                         memset(&kev, 0, sizeof(kev));
2143                         kev.ident = kev11.ident;
2144                         kev.filter = kev11.filter;
2145                         kev.flags = kev11.flags;
2146                         kev.fflags = kev11.fflags;
2147                         kev.data = kev11.data;
2148                         kev.udata = kev11.udata;
2149                         ktrkevent(&kev);
2150 #ifdef _WANT_KEVENT32
2151                 } else if (strcmp(name, "kevent32") == 0) {
2152                         struct kevent32 kev32;
2153
2154                         if (ksa->struct_size != sizeof(kev32))
2155                                 goto bad_size;
2156                         memcpy(&kev32, data, sizeof(kev32));
2157                         memset(&kev, 0, sizeof(kev));
2158                         kev.ident = kev32.ident;
2159                         kev.filter = kev32.filter;
2160                         kev.flags = kev32.flags;
2161                         kev.fflags = kev32.fflags;
2162 #if BYTE_ORDER == BIG_ENDIAN
2163                         kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2164 #else
2165                         kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2166 #endif
2167                         kev.udata = (void *)(uintptr_t)kev32.udata;
2168                         ktrkevent(&kev);
2169                 } else if (strcmp(name, "kevent32_freebsd11") == 0) {
2170                         struct kevent32_freebsd11 kev32;
2171
2172                         if (ksa->struct_size != sizeof(kev32))
2173                                 goto bad_size;
2174                         memcpy(&kev32, data, sizeof(kev32));
2175                         memset(&kev, 0, sizeof(kev));
2176                         kev.ident = kev32.ident;
2177                         kev.filter = kev32.filter;
2178                         kev.flags = kev32.flags;
2179                         kev.fflags = kev32.fflags;
2180                         kev.data = kev32.data;
2181                         kev.udata = (void *)(uintptr_t)kev32.udata;
2182                         ktrkevent(&kev);
2183 #endif
2184                 } else {
2185                         printf("<unknown structure> }\n");
2186                         return;
2187                 }
2188         }
2189         printf(" }\n");
2190         return;
2191 invalid:
2192         printf("invalid record\n");
2193         return;
2194 bad_size:
2195         printf("<bad size> }\n");
2196         return;
2197 }
2198
2199 void
2200 usage(void)
2201 {
2202         fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2203             "[-m maxdata] [-p pid] [-t trstr]\n");
2204         exit(1);
2205 }