1 /* 2 * Copyright (c) 2006 "David Kirchner" <dpk@dpk.net>. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #define L2CAP_SOCKET_CHECKED 30 31 #include <sys/types.h> 32 #include <sys/acl.h> 33 #include <sys/capsicum.h> 34 #include <sys/extattr.h> 35 #include <sys/linker.h> 36 #include <sys/mman.h> 37 #include <sys/mount.h> 38 #include <sys/procctl.h> 39 #include <sys/ptrace.h> 40 #include <sys/reboot.h> 41 #include <sys/resource.h> 42 #include <sys/rtprio.h> 43 #include <sys/sem.h> 44 #include <sys/shm.h> 45 #include <sys/socket.h> 46 #include <sys/stat.h> 47 #include <sys/thr.h> 48 #include <sys/umtx.h> 49 #include <netinet/in.h> 50 #include <netinet/sctp.h> 51 #include <netinet/tcp.h> 52 #include <netinet/udp.h> 53 #include <netinet/udplite.h> 54 #include <nfsserver/nfs.h> 55 #include <ufs/ufs/quota.h> 56 #include <vm/vm.h> 57 #include <vm/vm_param.h> 58 #include <aio.h> 59 #include <fcntl.h> 60 #include <sched.h> 61 #include <stdbool.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <strings.h> 65 #include <sysdecode.h> 66 #include <unistd.h> 67 #include <sys/bitstring.h> 68 #include <netgraph/bluetooth/include/ng_hci.h> 69 #include <netgraph/bluetooth/include/ng_l2cap.h> 70 #include <netgraph/bluetooth/include/ng_btsocket.h> 71 72 /* 73 * This is taken from the xlat tables originally in truss which were 74 * in turn taken from strace. 75 */ 76 struct name_table { 77 uintmax_t val; 78 const char *str; 79 }; 80 81 #define X(a) { a, #a }, 82 #define XEND { 0, NULL } 83 84 #define TABLE_START(n) static struct name_table n[] = { 85 #define TABLE_ENTRY X 86 #define TABLE_END XEND }; 87 88 #include "tables.h" 89 90 #undef TABLE_START 91 #undef TABLE_ENTRY 92 #undef TABLE_END 93 94 /* 95 * These are simple support macros. print_or utilizes a variable 96 * defined in the calling function to track whether or not it should 97 * print a logical-OR character ('|') before a string. if_print_or 98 * simply handles the necessary "if" statement used in many lines 99 * of this file. 100 */ 101 #define print_or(fp,str,orflag) do { \ 102 if (orflag) fputc(fp, '|'); else orflag = true; \ 103 fprintf(fp, str); } \ 104 while (0) 105 #define if_print_or(fp,i,flag,orflag) do { \ 106 if ((i & flag) == flag) \ 107 print_or(fp,#flag,orflag); } \ 108 while (0) 109 110 static const char * 111 lookup_value(struct name_table *table, uintmax_t val) 112 { 113 114 for (; table->str != NULL; table++) 115 if (table->val == val) 116 return (table->str); 117 return (NULL); 118 } 119 120 /* 121 * Used when the value maps to a bitmask of #definition values in the 122 * table. This is a helper routine which outputs a symbolic mask of 123 * matched masks. Multiple masks are separated by a pipe ('|'). 124 * The value is modified on return to only hold unmatched bits. 125 */ 126 static void 127 print_mask_part(FILE *fp, struct name_table *table, uintmax_t *valp, 128 bool *printed) 129 { 130 uintmax_t rem; 131 132 rem = *valp; 133 for (; table->str != NULL; table++) { 134 if ((table->val & rem) == table->val) { 135 /* 136 * Only print a zero mask if the raw value is 137 * zero. 138 */ 139 if (table->val == 0 && *valp != 0) 140 continue; 141 fprintf(fp, "%s%s", *printed ? "|" : "", table->str); 142 *printed = true; 143 rem &= ~table->val; 144 } 145 } 146 147 *valp = rem; 148 } 149 150 /* 151 * Used when the value maps to a bitmask of #definition values in the 152 * table. The return value is true if something was printed. If 153 * rem is not NULL, *rem holds any bits not decoded if something was 154 * printed. If nothing was printed and rem is not NULL, *rem holds 155 * the original value. 156 */ 157 static bool 158 print_mask_int(FILE *fp, struct name_table *table, int ival, int *rem) 159 { 160 uintmax_t val; 161 bool printed; 162 163 printed = false; 164 val = (unsigned)ival; 165 print_mask_part(fp, table, &val, &printed); 166 if (rem != NULL) 167 *rem = val; 168 return (printed); 169 } 170 171 /* 172 * Used for a mask of optional flags where a value of 0 is valid. 173 */ 174 static bool 175 print_mask_0(FILE *fp, struct name_table *table, int val, int *rem) 176 { 177 178 if (val == 0) { 179 fputs("0", fp); 180 if (rem != NULL) 181 *rem = 0; 182 return (true); 183 } 184 return (print_mask_int(fp, table, val, rem)); 185 } 186 187 /* 188 * Like print_mask_0 but for a unsigned long instead of an int. 189 */ 190 static bool 191 print_mask_0ul(FILE *fp, struct name_table *table, u_long lval, u_long *rem) 192 { 193 uintmax_t val; 194 bool printed; 195 196 if (lval == 0) { 197 fputs("0", fp); 198 if (rem != NULL) 199 *rem = 0; 200 return (true); 201 } 202 203 printed = false; 204 val = lval; 205 print_mask_part(fp, table, &val, &printed); 206 if (rem != NULL) 207 *rem = val; 208 return (printed); 209 } 210 211 static void 212 print_integer(FILE *fp, int val, int base) 213 { 214 215 switch (base) { 216 case 8: 217 fprintf(fp, "0%o", val); 218 break; 219 case 10: 220 fprintf(fp, "%d", val); 221 break; 222 case 16: 223 fprintf(fp, "0x%x", val); 224 break; 225 default: 226 abort2("bad base", 0, NULL); 227 break; 228 } 229 } 230 231 static bool 232 print_value(FILE *fp, struct name_table *table, uintmax_t val) 233 { 234 const char *str; 235 236 str = lookup_value(table, val); 237 if (str != NULL) { 238 fputs(str, fp); 239 return (true); 240 } 241 return (false); 242 } 243 244 const char * 245 sysdecode_atfd(int fd) 246 { 247 248 if (fd == AT_FDCWD) 249 return ("AT_FDCWD"); 250 return (NULL); 251 } 252 253 static struct name_table semctlops[] = { 254 X(GETNCNT) X(GETPID) X(GETVAL) X(GETALL) X(GETZCNT) X(SETVAL) X(SETALL) 255 X(IPC_RMID) X(IPC_SET) X(IPC_STAT) XEND 256 }; 257 258 const char * 259 sysdecode_semctl_cmd(int cmd) 260 { 261 262 return (lookup_value(semctlops, cmd)); 263 } 264 265 static struct name_table shmctlops[] = { 266 X(IPC_RMID) X(IPC_SET) X(IPC_STAT) XEND 267 }; 268 269 const char * 270 sysdecode_shmctl_cmd(int cmd) 271 { 272 273 return (lookup_value(shmctlops, cmd)); 274 } 275 276 const char * 277 sysdecode_msgctl_cmd(int cmd) 278 { 279 280 return (sysdecode_shmctl_cmd(cmd)); 281 } 282 283 static struct name_table semgetflags[] = { 284 X(IPC_CREAT) X(IPC_EXCL) X(SEM_R) X(SEM_A) X((SEM_R>>3)) X((SEM_A>>3)) 285 X((SEM_R>>6)) X((SEM_A>>6)) XEND 286 }; 287 288 bool 289 sysdecode_semget_flags(FILE *fp, int flag, int *rem) 290 { 291 292 return (print_mask_int(fp, semgetflags, flag, rem)); 293 } 294 295 static struct name_table idtypes[] = { 296 X(P_PID) X(P_PPID) X(P_PGID) X(P_SID) X(P_CID) X(P_UID) X(P_GID) 297 X(P_ALL) X(P_LWPID) X(P_TASKID) X(P_PROJID) X(P_POOLID) X(P_JAILID) 298 X(P_CTID) X(P_CPUID) X(P_PSETID) XEND 299 }; 300 301 /* XXX: idtype is really an idtype_t */ 302 const char * 303 sysdecode_idtype(int idtype) 304 { 305 306 return (lookup_value(idtypes, idtype)); 307 } 308 309 /* 310 * [g|s]etsockopt's level argument can either be SOL_SOCKET or a 311 * protocol-specific value. 312 */ 313 const char * 314 sysdecode_sockopt_level(int level) 315 { 316 const char *str; 317 318 if (level == SOL_SOCKET) 319 return ("SOL_SOCKET"); 320 321 /* SOL_* constants for Bluetooth sockets. */ 322 str = lookup_value(ngbtsolevel, level); 323 if (str != NULL) 324 return (str); 325 326 /* 327 * IP and Infiniband sockets use IP protocols as levels. Not all 328 * protocols are valid but it is simpler to just allow all of them. 329 * 330 * XXX: IPPROTO_IP == 0, but UNIX domain sockets use a level of 0 331 * for private options. 332 */ 333 str = sysdecode_ipproto(level); 334 if (str != NULL) 335 return (str); 336 337 return (NULL); 338 } 339 340 bool 341 sysdecode_vmprot(FILE *fp, int type, int *rem) 342 { 343 344 return (print_mask_int(fp, vmprot, type, rem)); 345 } 346 347 static struct name_table sockflags[] = { 348 X(SOCK_CLOEXEC) X(SOCK_NONBLOCK) XEND 349 }; 350 351 bool 352 sysdecode_socket_type(FILE *fp, int type, int *rem) 353 { 354 const char *str; 355 uintmax_t val; 356 bool printed; 357 358 str = lookup_value(socktype, type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)); 359 if (str != NULL) { 360 fputs(str, fp); 361 *rem = 0; 362 printed = true; 363 } else { 364 *rem = type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK); 365 printed = false; 366 } 367 val = type & (SOCK_CLOEXEC | SOCK_NONBLOCK); 368 print_mask_part(fp, sockflags, &val, &printed); 369 return (printed); 370 } 371 372 bool 373 sysdecode_access_mode(FILE *fp, int mode, int *rem) 374 { 375 376 return (print_mask_int(fp, accessmode, mode, rem)); 377 } 378 379 /* XXX: 'type' is really an acl_type_t. */ 380 const char * 381 sysdecode_acltype(int type) 382 { 383 384 return (lookup_value(acltype, type)); 385 } 386 387 bool 388 sysdecode_cap_fcntlrights(FILE *fp, uint32_t rights, uint32_t *rem) 389 { 390 391 return (print_mask_int(fp, capfcntl, rights, rem)); 392 } 393 394 const char * 395 sysdecode_extattrnamespace(int namespace) 396 { 397 398 return (lookup_value(extattrns, namespace)); 399 } 400 401 const char * 402 sysdecode_fadvice(int advice) 403 { 404 405 return (lookup_value(fadvisebehav, advice)); 406 } 407 408 bool 409 sysdecode_open_flags(FILE *fp, int flags, int *rem) 410 { 411 bool printed; 412 int mode; 413 uintmax_t val; 414 415 mode = flags & O_ACCMODE; 416 flags &= ~O_ACCMODE; 417 switch (mode) { 418 case O_RDONLY: 419 if (flags & O_EXEC) { 420 flags &= ~O_EXEC; 421 fputs("O_EXEC", fp); 422 } else 423 fputs("O_RDONLY", fp); 424 printed = true; 425 mode = 0; 426 break; 427 case O_WRONLY: 428 fputs("O_WRONLY", fp); 429 printed = true; 430 mode = 0; 431 break; 432 case O_RDWR: 433 fputs("O_RDWR", fp); 434 printed = true; 435 mode = 0; 436 break; 437 default: 438 printed = false; 439 } 440 val = (unsigned)flags; 441 print_mask_part(fp, openflags, &val, &printed); 442 if (rem != NULL) 443 *rem = val | mode; 444 return (printed); 445 } 446 447 bool 448 sysdecode_fcntl_fileflags(FILE *fp, int flags, int *rem) 449 { 450 bool printed; 451 int oflags; 452 453 /* 454 * The file flags used with F_GETFL/F_SETFL mostly match the 455 * flags passed to open(2). However, a few open-only flag 456 * bits have been repurposed for fcntl-only flags. 457 */ 458 oflags = flags & ~(O_NOFOLLOW | FRDAHEAD); 459 printed = sysdecode_open_flags(fp, oflags, rem); 460 if (flags & O_NOFOLLOW) { 461 fprintf(fp, "%sFPOIXSHM", printed ? "|" : ""); 462 printed = true; 463 } 464 if (flags & FRDAHEAD) { 465 fprintf(fp, "%sFRDAHEAD", printed ? "|" : ""); 466 printed = true; 467 } 468 return (printed); 469 } 470 471 bool 472 sysdecode_flock_operation(FILE *fp, int operation, int *rem) 473 { 474 475 return (print_mask_int(fp, flockops, operation, rem)); 476 } 477 478 static struct name_table getfsstatmode[] = { 479 X(MNT_WAIT) X(MNT_NOWAIT) XEND 480 }; 481 482 const char * 483 sysdecode_getfsstat_mode(int mode) 484 { 485 486 return (lookup_value(getfsstatmode, mode)); 487 } 488 489 const char * 490 sysdecode_getrusage_who(int who) 491 { 492 493 return (lookup_value(rusage, who)); 494 } 495 496 const char * 497 sysdecode_kldsym_cmd(int cmd) 498 { 499 500 return (lookup_value(kldsymcmd, cmd)); 501 } 502 503 const char * 504 sysdecode_kldunload_flags(int flags) 505 { 506 507 return (lookup_value(kldunloadfflags, flags)); 508 } 509 510 const char * 511 sysdecode_lio_listio_mode(int mode) 512 { 513 514 return (lookup_value(lio_listiomodes, mode)); 515 } 516 517 const char * 518 sysdecode_madvice(int advice) 519 { 520 521 return (lookup_value(madvisebehav, advice)); 522 } 523 524 const char * 525 sysdecode_minherit_inherit(int inherit) 526 { 527 528 return (lookup_value(minheritflags, inherit)); 529 } 530 531 bool 532 sysdecode_mlockall_flags(FILE *fp, int flags, int *rem) 533 { 534 535 return (print_mask_int(fp, mlockallflags, flags, rem)); 536 } 537 538 bool 539 sysdecode_mmap_prot(FILE *fp, int prot, int *rem) 540 { 541 542 return (print_mask_int(fp, mmapprot, prot, rem)); 543 } 544 545 bool 546 sysdecode_fileflags(FILE *fp, fflags_t flags, fflags_t *rem) 547 { 548 549 return (print_mask_0(fp, fileflags, flags, rem)); 550 } 551 552 bool 553 sysdecode_filemode(FILE *fp, int mode, int *rem) 554 { 555 556 return (print_mask_0(fp, filemode, mode, rem)); 557 } 558 559 bool 560 sysdecode_mount_flags(FILE *fp, int flags, int *rem) 561 { 562 563 return (print_mask_int(fp, mountflags, flags, rem)); 564 } 565 566 bool 567 sysdecode_msync_flags(FILE *fp, int flags, int *rem) 568 { 569 570 return (print_mask_int(fp, msyncflags, flags, rem)); 571 } 572 573 const char * 574 sysdecode_nfssvc_flags(int flags) 575 { 576 577 return (lookup_value(nfssvcflags, flags)); 578 } 579 580 static struct name_table pipe2flags[] = { 581 X(O_CLOEXEC) X(O_NONBLOCK) XEND 582 }; 583 584 bool 585 sysdecode_pipe2_flags(FILE *fp, int flags, int *rem) 586 { 587 588 return (print_mask_0(fp, pipe2flags, flags, rem)); 589 } 590 591 const char * 592 sysdecode_prio_which(int which) 593 { 594 595 return (lookup_value(prio, which)); 596 } 597 598 const char * 599 sysdecode_procctl_cmd(int cmd) 600 { 601 602 return (lookup_value(procctlcmd, cmd)); 603 } 604 605 const char * 606 sysdecode_ptrace_request(int request) 607 { 608 609 return (lookup_value(ptraceop, request)); 610 } 611 612 static struct name_table quotatypes[] = { 613 X(GRPQUOTA) X(USRQUOTA) XEND 614 }; 615 616 bool 617 sysdecode_quotactl_cmd(FILE *fp, int cmd) 618 { 619 const char *primary, *type; 620 621 primary = lookup_value(quotactlcmds, cmd >> SUBCMDSHIFT); 622 if (primary == NULL) 623 return (false); 624 fprintf(fp, "QCMD(%s,", primary); 625 type = lookup_value(quotatypes, cmd & SUBCMDMASK); 626 if (type != NULL) 627 fprintf(fp, "%s", type); 628 else 629 fprintf(fp, "%#x", cmd & SUBCMDMASK); 630 fprintf(fp, ")"); 631 return (true); 632 } 633 634 bool 635 sysdecode_reboot_howto(FILE *fp, int howto, int *rem) 636 { 637 638 return (print_mask_int(fp, rebootopt, howto, rem)); 639 } 640 641 bool 642 sysdecode_rfork_flags(FILE *fp, int flags, int *rem) 643 { 644 645 return (print_mask_int(fp, rforkflags, flags, rem)); 646 } 647 648 const char * 649 sysdecode_rlimit(int resource) 650 { 651 652 return (lookup_value(rlimit, resource)); 653 } 654 655 const char * 656 sysdecode_scheduler_policy(int policy) 657 { 658 659 return (lookup_value(schedpolicy, policy)); 660 } 661 662 bool 663 sysdecode_sendfile_flags(FILE *fp, int flags, int *rem) 664 { 665 666 return (print_mask_int(fp, sendfileflags, flags, rem)); 667 } 668 669 bool 670 sysdecode_shmat_flags(FILE *fp, int flags, int *rem) 671 { 672 673 return (print_mask_int(fp, shmatflags, flags, rem)); 674 } 675 676 const char * 677 sysdecode_shutdown_how(int how) 678 { 679 680 return (lookup_value(shutdownhow, how)); 681 } 682 683 const char * 684 sysdecode_sigbus_code(int si_code) 685 { 686 687 return (lookup_value(sigbuscode, si_code)); 688 } 689 690 const char * 691 sysdecode_sigchld_code(int si_code) 692 { 693 694 return (lookup_value(sigchldcode, si_code)); 695 } 696 697 const char * 698 sysdecode_sigfpe_code(int si_code) 699 { 700 701 return (lookup_value(sigfpecode, si_code)); 702 } 703 704 const char * 705 sysdecode_sigill_code(int si_code) 706 { 707 708 return (lookup_value(sigillcode, si_code)); 709 } 710 711 const char * 712 sysdecode_sigsegv_code(int si_code) 713 { 714 715 return (lookup_value(sigsegvcode, si_code)); 716 } 717 718 const char * 719 sysdecode_sigtrap_code(int si_code) 720 { 721 722 return (lookup_value(sigtrapcode, si_code)); 723 } 724 725 const char * 726 sysdecode_sigprocmask_how(int how) 727 { 728 729 return (lookup_value(sigprocmaskhow, how)); 730 } 731 732 const char * 733 sysdecode_socketdomain(int domain) 734 { 735 736 return (lookup_value(sockdomain, domain)); 737 } 738 739 const char * 740 sysdecode_socket_protocol(int domain, int protocol) 741 { 742 743 switch (domain) { 744 case PF_INET: 745 case PF_INET6: 746 return (lookup_value(sockipproto, protocol)); 747 default: 748 return (NULL); 749 } 750 } 751 752 const char * 753 sysdecode_sockaddr_family(int sa_family) 754 { 755 756 return (lookup_value(sockfamily, sa_family)); 757 } 758 759 const char * 760 sysdecode_ipproto(int protocol) 761 { 762 763 return (lookup_value(sockipproto, protocol)); 764 } 765 766 const char * 767 sysdecode_sockopt_name(int level, int optname) 768 { 769 770 if (level == SOL_SOCKET) 771 return (lookup_value(sockopt, optname)); 772 if (level == IPPROTO_IP) 773 /* XXX: UNIX domain socket options use a level of 0 also. */ 774 return (lookup_value(sockoptip, optname)); 775 if (level == IPPROTO_IPV6) 776 return (lookup_value(sockoptipv6, optname)); 777 if (level == IPPROTO_SCTP) 778 return (lookup_value(sockoptsctp, optname)); 779 if (level == IPPROTO_TCP) 780 return (lookup_value(sockopttcp, optname)); 781 if (level == IPPROTO_UDP) 782 return (lookup_value(sockoptudp, optname)); 783 if (level == IPPROTO_UDPLITE) 784 return (lookup_value(sockoptudplite, optname)); 785 return (NULL); 786 } 787 788 bool 789 sysdecode_thr_create_flags(FILE *fp, int flags, int *rem) 790 { 791 792 return (print_mask_int(fp, thrcreateflags, flags, rem)); 793 } 794 795 const char * 796 sysdecode_umtx_op(int op) 797 { 798 799 return (lookup_value(umtxop, op)); 800 } 801 802 const char * 803 sysdecode_vmresult(int result) 804 { 805 806 return (lookup_value(vmresult, result)); 807 } 808 809 bool 810 sysdecode_wait4_options(FILE *fp, int options, int *rem) 811 { 812 bool printed; 813 int opt6; 814 815 /* A flags value of 0 is normal. */ 816 if (options == 0) { 817 fputs("0", fp); 818 if (rem != NULL) 819 *rem = 0; 820 return (true); 821 } 822 823 /* 824 * These flags are implicit and aren't valid flags for wait4() 825 * directly (though they don't fail with EINVAL). 826 */ 827 opt6 = options & (WEXITED | WTRAPPED); 828 options &= ~opt6; 829 printed = print_mask_int(fp, wait6opt, options, rem); 830 if (rem != NULL) 831 *rem |= opt6; 832 return (printed); 833 } 834 835 bool 836 sysdecode_wait6_options(FILE *fp, int options, int *rem) 837 { 838 839 return (print_mask_int(fp, wait6opt, options, rem)); 840 } 841 842 const char * 843 sysdecode_whence(int whence) 844 { 845 846 return (lookup_value(seekwhence, whence)); 847 } 848 849 const char * 850 sysdecode_fcntl_cmd(int cmd) 851 { 852 853 return (lookup_value(fcntlcmd, cmd)); 854 } 855 856 static struct name_table fcntl_fd_arg[] = { 857 X(FD_CLOEXEC) X(0) XEND 858 }; 859 860 bool 861 sysdecode_fcntl_arg_p(int cmd) 862 { 863 864 switch (cmd) { 865 case F_GETFD: 866 case F_GETFL: 867 case F_GETOWN: 868 return (false); 869 default: 870 return (true); 871 } 872 } 873 874 void 875 sysdecode_fcntl_arg(FILE *fp, int cmd, uintptr_t arg, int base) 876 { 877 int rem; 878 879 switch (cmd) { 880 case F_SETFD: 881 if (!print_value(fp, fcntl_fd_arg, arg)) 882 print_integer(fp, arg, base); 883 break; 884 case F_SETFL: 885 if (!sysdecode_fcntl_fileflags(fp, arg, &rem)) 886 fprintf(fp, "%#x", rem); 887 else if (rem != 0) 888 fprintf(fp, "|%#x", rem); 889 break; 890 case F_GETLK: 891 case F_SETLK: 892 case F_SETLKW: 893 fprintf(fp, "%p", (void *)arg); 894 break; 895 default: 896 print_integer(fp, arg, base); 897 break; 898 } 899 } 900 901 bool 902 sysdecode_mmap_flags(FILE *fp, int flags, int *rem) 903 { 904 uintmax_t val; 905 bool printed; 906 int align; 907 908 /* 909 * MAP_ALIGNED can't be handled directly by print_mask_int(). 910 * MAP_32BIT is also problematic since it isn't defined for 911 * all platforms. 912 */ 913 printed = false; 914 align = flags & MAP_ALIGNMENT_MASK; 915 val = (unsigned)flags & ~MAP_ALIGNMENT_MASK; 916 print_mask_part(fp, mmapflags, &val, &printed); 917 #ifdef MAP_32BIT 918 if (val & MAP_32BIT) { 919 fprintf(fp, "%sMAP_32BIT", printed ? "|" : ""); 920 printed = true; 921 val &= ~MAP_32BIT; 922 } 923 #endif 924 if (align != 0) { 925 if (printed) 926 fputc('|', fp); 927 if (align == MAP_ALIGNED_SUPER) 928 fputs("MAP_ALIGNED_SUPER", fp); 929 else 930 fprintf(fp, "MAP_ALIGNED(%d)", 931 align >> MAP_ALIGNMENT_SHIFT); 932 printed = true; 933 } 934 if (rem != NULL) 935 *rem = val; 936 return (printed); 937 } 938 939 const char * 940 sysdecode_rtprio_function(int function) 941 { 942 943 return (lookup_value(rtpriofuncs, function)); 944 } 945 946 bool 947 sysdecode_msg_flags(FILE *fp, int flags, int *rem) 948 { 949 950 return (print_mask_0(fp, msgflags, flags, rem)); 951 } 952 953 const char * 954 sysdecode_sigcode(int sig, int si_code) 955 { 956 const char *str; 957 958 str = lookup_value(sigcode, si_code); 959 if (str != NULL) 960 return (str); 961 962 switch (sig) { 963 case SIGILL: 964 return (sysdecode_sigill_code(si_code)); 965 case SIGBUS: 966 return (sysdecode_sigbus_code(si_code)); 967 case SIGSEGV: 968 return (sysdecode_sigsegv_code(si_code)); 969 case SIGFPE: 970 return (sysdecode_sigfpe_code(si_code)); 971 case SIGTRAP: 972 return (sysdecode_sigtrap_code(si_code)); 973 case SIGCHLD: 974 return (sysdecode_sigchld_code(si_code)); 975 default: 976 return (NULL); 977 } 978 } 979 980 bool 981 sysdecode_umtx_cvwait_flags(FILE *fp, u_long flags, u_long *rem) 982 { 983 984 return (print_mask_0ul(fp, umtxcvwaitflags, flags, rem)); 985 } 986 987 bool 988 sysdecode_umtx_rwlock_flags(FILE *fp, u_long flags, u_long *rem) 989 { 990 991 return (print_mask_0ul(fp, umtxrwlockflags, flags, rem)); 992 } 993 994 void 995 sysdecode_cap_rights(FILE *fp, cap_rights_t *rightsp) 996 { 997 struct name_table *t; 998 bool comma; 999 1000 comma = false; 1001 for (t = caprights; t->str != NULL; t++) { 1002 if (cap_rights_is_set(rightsp, t->val)) { 1003 fprintf(fp, "%s%s", comma ? "," : "", t->str); 1004 comma = true; 1005 } 1006 } 1007 } 1008