Annotation of src/usr.bin/kdump/kdump.c, Revision 1.136
1.136 ! tedu 1: /* $OpenBSD: kdump.c,v 1.135 2018/10/21 19:56:26 guenther Exp $ */
1.4 deraadt 2:
1.1 deraadt 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.
1.21 millert 15: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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:
1.97 deraadt 32: #include <sys/param.h> /* MAXCOMLEN nitems */
1.1 deraadt 33: #include <sys/time.h>
1.97 deraadt 34: #include <sys/signal.h>
1.1 deraadt 35: #include <sys/uio.h>
36: #include <sys/ktrace.h>
37: #include <sys/ioctl.h>
1.62 otto 38: #include <sys/malloc.h>
39: #include <sys/namei.h>
1.1 deraadt 40: #include <sys/ptrace.h>
1.62 otto 41: #include <sys/sem.h>
42: #include <sys/shm.h>
1.51 otto 43: #include <sys/socket.h>
1.28 deraadt 44: #include <sys/sysctl.h>
1.63 deraadt 45: #include <sys/siginfo.h>
1.62 otto 46: #include <sys/vmmeter.h>
47: #include <sys/tty.h>
1.82 guenther 48: #include <sys/wait.h>
1.117 deraadt 49: #define PLEDGENAMES
50: #include <sys/pledge.h>
51: #undef PLEDGENAMES
1.1 deraadt 52: #define _KERNEL
1.84 guenther 53: #include <errno.h>
1.1 deraadt 54: #undef _KERNEL
1.62 otto 55: #include <ddb/db_var.h>
56: #include <machine/cpu.h>
1.1 deraadt 57:
1.33 tedu 58: #include <ctype.h>
1.1 deraadt 59: #include <err.h>
1.61 matthew 60: #include <fcntl.h>
1.64 guenther 61: #include <limits.h>
1.100 guenther 62: #include <netdb.h>
1.77 guenther 63: #include <poll.h>
1.1 deraadt 64: #include <signal.h>
65: #include <stdio.h>
66: #include <stdlib.h>
1.55 otto 67: #include <stdint.h>
1.1 deraadt 68: #include <string.h>
69: #include <unistd.h>
70: #include <vis.h>
71:
72: #include "ktrace.h"
1.22 deraadt 73: #include "kdump.h"
1.51 otto 74: #include "kdump_subr.h"
1.12 espie 75: #include "extern.h"
1.1 deraadt 76:
1.67 mikeb 77: int timestamp, decimal, iohex, fancy = 1, maxdata = INT_MAX;
1.111 guenther 78: int needtid, tail, basecol;
1.1 deraadt 79: char *tracefile = DEF_TRACEFILE;
80: struct ktr_header ktr_header;
1.85 guenther 81: pid_t pid_opt = -1;
1.1 deraadt 82:
83: #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
84:
85: #include <sys/syscall.h>
86:
87: #define KTRACE
1.19 mickey 88: #define PTRACE
1.7 deraadt 89: #define NFSCLIENT
90: #define NFSSERVER
91: #define SYSVSEM
92: #define SYSVMSG
93: #define SYSVSHM
1.110 guenther 94: #define ACCOUNTING
1.25 mickey 95: #include <kern/syscalls.c>
1.1 deraadt 96: #undef KTRACE
1.19 mickey 97: #undef PTRACE
1.7 deraadt 98: #undef NFSCLIENT
99: #undef NFSSERVER
100: #undef SYSVSEM
101: #undef SYSVMSG
102: #undef SYSVSHM
1.110 guenther 103: #undef ACCOUNTING
1.1 deraadt 104:
105:
106: static char *ptrace_ops[] = {
107: "PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
108: "PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
1.15 art 109: "PT_KILL", "PT_ATTACH", "PT_DETACH", "PT_IO",
1.64 guenther 110: "PT_SET_EVENT_MASK", "PT_GET_EVENT_MASK", "PT_GET_PROCESS_STATE",
1.71 guenther 111: "PT_GET_THREAD_FIRST", "PT_GET_THREAD_NEXT",
1.1 deraadt 112: };
113:
1.37 tedu 114: static int fread_tail(void *, size_t, size_t);
1.13 millert 115: static void dumpheader(struct ktr_header *);
1.37 tedu 116: static void ktrgenio(struct ktr_genio *, size_t);
117: static void ktrnamei(const char *, size_t);
1.13 millert 118: static void ktrpsig(struct ktr_psig *);
1.93 jsg 119: static void ktrsyscall(struct ktr_syscall *, size_t);
1.94 guenther 120: static const char *kresolvsysctl(int, const int *);
1.103 guenther 121: static void ktrsysret(struct ktr_sysret *, size_t);
1.81 miod 122: static void ktruser(struct ktr_user *, size_t);
1.106 guenther 123: static void ktrexec(const char*, size_t);
1.117 deraadt 124: static void ktrpledge(struct ktr_pledge *, size_t);
1.13 millert 125: static void usage(void);
1.92 guenther 126: static void ioctldecode(int);
127: static void ptracedecode(int);
1.61 matthew 128: static void atfd(int);
1.77 guenther 129: static void polltimeout(int);
1.82 guenther 130: static void wait4pid(int);
1.83 guenther 131: static void signame(int);
132: static void semctlname(int);
133: static void shmctlname(int);
134: static void semgetname(int);
1.92 guenther 135: static void flagsandmodename(int);
1.83 guenther 136: static void clockname(int);
137: static void sockoptlevelname(int);
1.88 guenther 138: static void ktraceopname(int);
1.12 espie 139:
1.102 deraadt 140: static int screenwidth;
141:
1.1 deraadt 142: int
1.17 deraadt 143: main(int argc, char *argv[])
1.1 deraadt 144: {
1.37 tedu 145: int ch, silent;
146: size_t ktrlen, size;
1.17 deraadt 147: int trpoints = ALL_POINTS;
1.101 deraadt 148: const char *errstr;
1.12 espie 149: void *m;
1.1 deraadt 150:
1.102 deraadt 151: if (screenwidth == 0) {
152: struct winsize ws;
153:
154: if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
155: ws.ws_col > 8)
156: screenwidth = ws.ws_col;
157: else
158: screenwidth = 80;
159: }
160:
1.122 guenther 161: while ((ch = getopt(argc, argv, "f:dHlm:np:RTt:xX")) != -1)
1.1 deraadt 162: switch (ch) {
163: case 'f':
164: tracefile = optarg;
165: break;
166: case 'd':
167: decimal = 1;
168: break;
1.67 mikeb 169: case 'H':
170: needtid = 1;
171: break;
1.1 deraadt 172: case 'l':
173: tail = 1;
174: break;
175: case 'm':
1.101 deraadt 176: maxdata = strtonum(optarg, 0, INT_MAX, &errstr);
177: if (errstr)
178: errx(1, "-m %s: %s", optarg, errstr);
1.1 deraadt 179: break;
180: case 'n':
181: fancy = 0;
182: break;
1.17 deraadt 183: case 'p':
1.101 deraadt 184: pid_opt = strtonum(optarg, 1, INT_MAX, &errstr);
185: if (errstr)
186: errx(1, "-p %s: %s", optarg, errstr);
1.17 deraadt 187: break;
1.128 tedu 188: case 'R': /* relative timestamp */
189: timestamp = timestamp == 1 ? 3 : 2;
1.1 deraadt 190: break;
191: case 'T':
1.128 tedu 192: timestamp = timestamp == 2 ? 3 : 1;
1.1 deraadt 193: break;
194: case 't':
1.129 guenther 195: trpoints = getpoints(optarg, DEF_POINTS);
1.1 deraadt 196: if (trpoints < 0)
197: errx(1, "unknown trace point in %s", optarg);
198: break;
1.31 tedu 199: case 'x':
200: iohex = 1;
201: break;
202: case 'X':
203: iohex = 2;
204: break;
1.1 deraadt 205: default:
206: usage();
207: }
1.5 deraadt 208: if (argc > optind)
1.1 deraadt 209: usage();
1.108 deraadt 210:
1.136 ! tedu 211: if (strcmp(tracefile, "-") != 0)
! 212: if (unveil(tracefile, "r") == -1)
! 213: err(1, "unveil");
1.115 deraadt 214: if (pledge("stdio rpath getpw", NULL) == -1)
1.113 deraadt 215: err(1, "pledge");
1.1 deraadt 216:
1.37 tedu 217: m = malloc(size = 1025);
1.1 deraadt 218: if (m == NULL)
1.37 tedu 219: err(1, NULL);
1.136 ! tedu 220: if (strcmp(tracefile, "-") != 0)
! 221: if (!freopen(tracefile, "r", stdin))
! 222: err(1, "%s", tracefile);
1.112 deraadt 223:
1.67 mikeb 224: if (fread_tail(&ktr_header, sizeof(struct ktr_header), 1) == 0 ||
225: ktr_header.ktr_type != htobe32(KTR_START))
226: errx(1, "%s: not a dump", tracefile);
1.1 deraadt 227: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
1.17 deraadt 228: silent = 0;
1.85 guenther 229: if (pid_opt != -1 && pid_opt != ktr_header.ktr_pid)
1.17 deraadt 230: silent = 1;
231: if (silent == 0 && trpoints & (1<<ktr_header.ktr_type))
1.1 deraadt 232: dumpheader(&ktr_header);
1.37 tedu 233: ktrlen = ktr_header.ktr_len;
1.1 deraadt 234: if (ktrlen > size) {
1.23 tedu 235: void *newm;
236:
1.64 guenther 237: if (ktrlen == SIZE_MAX)
238: errx(1, "data too long");
1.23 tedu 239: newm = realloc(m, ktrlen+1);
240: if (newm == NULL)
1.66 deraadt 241: err(1, "realloc");
1.23 tedu 242: m = newm;
1.1 deraadt 243: size = ktrlen;
244: }
245: if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
246: errx(1, "data too short");
1.17 deraadt 247: if (silent)
248: continue;
1.1 deraadt 249: if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
250: continue;
251: switch (ktr_header.ktr_type) {
252: case KTR_SYSCALL:
1.131 guenther 253: ktrsyscall(m, ktrlen);
1.1 deraadt 254: break;
255: case KTR_SYSRET:
1.131 guenther 256: ktrsysret(m, ktrlen);
1.1 deraadt 257: break;
258: case KTR_NAMEI:
259: ktrnamei(m, ktrlen);
260: break;
261: case KTR_GENIO:
1.131 guenther 262: ktrgenio(m, ktrlen);
1.1 deraadt 263: break;
264: case KTR_PSIG:
1.131 guenther 265: ktrpsig(m);
1.1 deraadt 266: break;
1.55 otto 267: case KTR_STRUCT:
268: ktrstruct(m, ktrlen);
269: break;
1.81 miod 270: case KTR_USER:
271: ktruser(m, ktrlen);
272: break;
1.106 guenther 273: case KTR_EXECARGS:
274: case KTR_EXECENV:
275: ktrexec(m, ktrlen);
276: break;
1.117 deraadt 277: case KTR_PLEDGE:
1.131 guenther 278: ktrpledge(m, ktrlen);
1.117 deraadt 279: break;
1.123 guenther 280: default:
281: printf("\n");
282: break;
1.1 deraadt 283: }
284: if (tail)
285: (void)fflush(stdout);
286: }
1.12 espie 287: exit(0);
1.1 deraadt 288: }
289:
1.12 espie 290: static int
1.37 tedu 291: fread_tail(void *buf, size_t size, size_t num)
1.1 deraadt 292: {
293: int i;
294:
295: while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
296: (void)sleep(1);
297: clearerr(stdin);
298: }
299: return (i);
300: }
301:
1.12 espie 302: static void
1.17 deraadt 303: dumpheader(struct ktr_header *kth)
1.1 deraadt 304: {
1.67 mikeb 305: static struct timespec prevtime;
1.1 deraadt 306: char unknown[64], *type;
1.67 mikeb 307: struct timespec temp;
1.1 deraadt 308:
309: switch (kth->ktr_type) {
310: case KTR_SYSCALL:
311: type = "CALL";
312: break;
313: case KTR_SYSRET:
314: type = "RET ";
315: break;
316: case KTR_NAMEI:
317: type = "NAMI";
318: break;
319: case KTR_GENIO:
320: type = "GIO ";
321: break;
322: case KTR_PSIG:
323: type = "PSIG";
324: break;
1.55 otto 325: case KTR_STRUCT:
326: type = "STRU";
327: break;
1.81 miod 328: case KTR_USER:
329: type = "USER";
330: break;
1.106 guenther 331: case KTR_EXECARGS:
332: type = "ARGS";
333: break;
334: case KTR_EXECENV:
335: type = "ENV ";
336: break;
1.117 deraadt 337: case KTR_PLEDGE:
338: type = "PLDG";
339: break;
1.1 deraadt 340: default:
1.123 guenther 341: /* htobe32() not guaranteed to work as case label */
342: if (kth->ktr_type == htobe32(KTR_START)) {
343: type = "STRT";
344: break;
345: }
1.122 guenther 346: (void)snprintf(unknown, sizeof unknown, "UNKNOWN(%u)",
1.17 deraadt 347: kth->ktr_type);
1.1 deraadt 348: type = unknown;
349: }
350:
1.111 guenther 351: basecol = printf("%6ld", (long)kth->ktr_pid);
1.67 mikeb 352: if (needtid)
1.111 guenther 353: basecol += printf("/%-7ld", (long)kth->ktr_tid);
354: basecol += printf(" %-8.*s ", MAXCOMLEN, kth->ktr_comm);
1.1 deraadt 355: if (timestamp) {
1.128 tedu 356: if (timestamp == 3) {
357: if (prevtime.tv_sec == 0)
358: prevtime = kth->ktr_time;
359: timespecsub(&kth->ktr_time, &prevtime, &temp);
360: } else if (timestamp == 2) {
1.67 mikeb 361: timespecsub(&kth->ktr_time, &prevtime, &temp);
1.1 deraadt 362: prevtime = kth->ktr_time;
363: } else
364: temp = kth->ktr_time;
1.111 guenther 365: basecol += printf("%lld.%06ld ", (long long)temp.tv_sec,
1.79 deraadt 366: temp.tv_nsec / 1000);
1.1 deraadt 367: }
1.111 guenther 368: basecol += printf("%s ", type);
1.1 deraadt 369: }
370:
1.92 guenther 371: /*
372: * Base Formatters
373: */
374:
375: /* some syscalls have padding that shouldn't be shown */
376: static int
377: pad(long arg)
378: {
379: /* nothing printed */
380: return (1);
381: }
382:
383: /* a formatter that just saves the argument for the next formatter */
384: int arg1;
385: static int
386: pass_two(long arg)
387: {
388: arg1 = (int)arg;
389:
390: /* nothing printed */
391: return (1);
392: }
393:
394: static int
395: pdeclong(long arg)
396: {
397: (void)printf("%ld", arg);
398: return (0);
399: }
400:
401: static int
402: pdeculong(long arg)
1.2 deraadt 403: {
1.92 guenther 404: (void)printf("%lu", arg);
405: return (0);
406: }
1.2 deraadt 407:
1.92 guenther 408: static int
409: phexlong(long arg)
410: {
411: (void)printf("%#lx", arg);
412: return (0);
413: }
1.2 deraadt 414:
1.92 guenther 415: static int
416: pnonfancy(long arg)
417: {
418: if (decimal)
419: (void)printf("%ld", arg);
1.2 deraadt 420: else
1.92 guenther 421: (void)printf("%#lx", arg);
422: return (0);
1.2 deraadt 423: }
1.1 deraadt 424:
1.52 otto 425: static void
1.92 guenther 426: pdecint(int arg)
1.52 otto 427: {
1.92 guenther 428: (void)printf("%d", arg);
1.52 otto 429: }
430:
431: static void
1.92 guenther 432: pdecuint(int arg)
1.52 otto 433: {
1.92 guenther 434: (void)printf("%u", arg);
1.52 otto 435: }
436:
437: static void
1.92 guenther 438: phexint(int arg)
1.52 otto 439: {
1.92 guenther 440: (void)printf("%#x", arg);
1.52 otto 441: }
1.92 guenther 442:
1.52 otto 443: static void
1.92 guenther 444: poctint(int arg)
445: {
446: (void)printf("%#o", arg);
447: }
448:
449:
450: #ifdef __LP64__
451:
452: /* on LP64, long long arguments are the same as long arguments */
453: #define Phexlonglong Phexlong
454: #define phexll NULL /* not actually used on LP64 */
455:
456: #else /* __LP64__ */
457:
458: /* on ILP32, long long arguments are passed as two 32bit args */
459: #define Phexlonglong PASS_LONGLONG, Phexll
460:
461: static int
462: phexll(long arg2)
1.52 otto 463: {
1.92 guenther 464: long long val;
465:
466: #if _BYTE_ORDER == _LITTLE_ENDIAN
467: val = ((long long)arg2 << 32) | ((long long)arg1 & 0xffffffff);
468: #else
469: val = ((long long)arg1 << 32) | ((long long)arg2 & 0xffffffff);
470: #endif
471:
472: if (fancy || !decimal)
473: (void)printf("%#llx", val);
474: else
1.52 otto 475: (void)printf("%lld", val);
1.92 guenther 476: return (0);
1.52 otto 477: }
1.92 guenther 478:
479: #endif /* __LP64__ */
480:
481: static int (*long_formatters[])(long) = {
482: NULL,
483: pdeclong,
484: pdeculong,
485: phexlong,
486: pass_two,
487: pass_two,
488: phexll,
489: pad,
490: pnonfancy,
491: };
492:
493: static void (*formatters[])(int) = {
494: NULL,
495: pdecint,
496: phexint,
497: poctint,
498: pdecuint,
499: ioctldecode,
500: ptracedecode,
501: atfd,
502: polltimeout,
503: wait4pid,
504: signame,
505: semctlname,
506: shmctlname,
507: semgetname,
508: flagsandmodename,
509: clockname,
510: sockoptlevelname,
511: ktraceopname,
512: fcntlcmdname,
513: modename,
514: flagsname,
515: openflagsname,
516: atflagsname,
517: accessmodename,
518: mmapprotname,
519: mmapflagsname,
520: wait4optname,
521: sendrecvflagsname,
522: mountflagsname,
523: rebootoptname,
524: flockname,
525: sockoptname,
526: sockipprotoname,
527: socktypename,
528: sockflagsname,
529: sockfamilyname,
530: mlockallname,
531: shmatname,
532: whencename,
533: pathconfname,
534: rlimitname,
535: shutdownhowname,
536: prioname,
537: madvisebehavname,
538: msyncflagsname,
539: clocktypename,
540: rusagewho,
541: sigactionflagname,
542: sigprocmaskhowname,
543: minheritname,
544: quotactlname,
545: sigill_name,
546: sigtrap_name,
547: sigemt_name,
548: sigfpe_name,
549: sigbus_name,
550: sigsegv_name,
551: sigchld_name,
552: ktracefacname,
553: itimername,
554: sigset,
1.94 guenther 555: uidname,
556: gidname,
1.125 guenther 557: syslogflagname,
1.130 mpi 558: futexflagname,
1.92 guenther 559: };
560:
561: enum {
562: /* the end of the (known) arguments is recognized by the zero fill */
563: end_of_args = 0,
564:
565: /* negative are the negative of the index into long_formatters[] */
566: Pdeclong = -1,
567: Pdeculong = -2,
568: Phexlong = -3,
569: PASS_TWO = -4,
570:
571: /* the remaining long formatters still get called when non-fancy (-n option) */
572: #define FMT_IS_NONFANCY(x) ((x) <= PASS_LONGLONG)
573: PASS_LONGLONG = -5,
574: Phexll = -6,
575: PAD = -7,
576: Pnonfancy = -8,
577:
578: /* positive values are the index into formatters[] */
579: Pdecint = 1,
580: Phexint,
581: Poctint,
582: Pdecuint,
583: Ioctldecode,
584: Ptracedecode,
585: Atfd,
586: Polltimeout,
587: Wait4pid,
588: Signame,
589: Semctlname,
590: Shmctlname,
591: Semgetname,
592: Flagsandmodename,
593: Clockname,
594: Sockoptlevelname,
595: Ktraceopname,
596: Fcntlcmdname,
597: Modename,
598: Flagsname,
599: Openflagsname,
600: Atflagsname,
601: Accessmodename,
602: Mmapprotname,
603: Mmapflagsname,
604: Wait4optname,
605: Sendrecvflagsname,
606: Mountflagsname,
607: Rebootoptname,
608: Flockname,
609: Sockoptname,
610: Sockipprotoname,
611: Socktypename,
612: Sockflagsname,
613: Sockfamilyname,
614: Mlockallname,
615: Shmatname,
616: Whencename,
617: Pathconfname,
618: Rlimitname,
619: Shutdownhowname,
620: Prioname,
621: Madvisebehavname,
622: Msyncflagsname,
623: Clocktypename,
624: Rusagewho,
625: Sigactionflagname,
626: Sigprocmaskhowname,
627: Minheritname,
628: Quotactlname,
629: Sigill_name,
630: Sigtrap_name,
631: Sigemt_name,
632: Sigfpe_name,
633: Sigbus_name,
634: Sigsegv_name,
635: Sigchld_name,
636: Ktracefacname,
637: Itimername,
638: Sigset,
1.94 guenther 639: Uidname,
640: Gidname,
1.125 guenther 641: Syslogflagname,
1.130 mpi 642: Futexflagname,
1.92 guenther 643: };
644:
645: #define Pptr Phexlong
646: #define Psize Pdeculong /* size_t for small buffers */
647: #define Pbigsize Phexlong /* size_t for I/O buffers */
648: #define Pcount Pdecint /* int for a count of something */
649: #define Pfd Pdecint
650: #define Ppath Phexlong
651: #define Pdev_t Pdecint
652: #define Ppid_t Pdecint
653: #define Ppgid Pdecint /* pid or negative pgid */
654: #define Poff_t Phexlonglong
655: #define Pmsqid Pdecint
656: #define Pshmid Pdecint
657: #define Psemid Pdecint
658: #define Pkey_t Pdecint
659: #define Pucount Pdecuint
660: #define Chflagsname Phexlong /* to be added */
661: #define Sockprotoname Phexlong /* to be added */
662: #define Swapctlname Phexlong /* to be added */
663: #define Msgflgname Phexlong /* to be added */
664:
665:
666: typedef signed char formatter;
667: static const formatter scargs[][8] = {
668: [SYS_exit] = { Pdecint },
669: [SYS_read] = { Pfd, Pptr, Pbigsize },
670: [SYS_write] = { Pfd, Pptr, Pbigsize },
671: [SYS_open] = { Ppath, PASS_TWO, Flagsandmodename },
672: [SYS_close] = { Pfd },
673: [SYS_getentropy] = { Pptr, Psize },
674: [SYS___tfork] = { Pptr, Psize },
675: [SYS_link] = { Ppath, Ppath },
676: [SYS_unlink] = { Ppath },
677: [SYS_wait4] = { Wait4pid, Pptr, Wait4optname },
678: [SYS_chdir] = { Ppath },
679: [SYS_fchdir] = { Pfd },
680: [SYS_mknod] = { Ppath, Modename, Pdev_t },
681: [SYS_chmod] = { Ppath, Modename },
1.94 guenther 682: [SYS_chown] = { Ppath, Uidname, Gidname },
1.92 guenther 683: [SYS_break] = { Pptr },
684: [SYS_getrusage] = { Rusagewho, Pptr },
685: [SYS_mount] = { Pptr, Ppath, Mountflagsname, Pptr },
686: [SYS_unmount] = { Ppath, Mountflagsname },
1.94 guenther 687: [SYS_setuid] = { Uidname },
1.92 guenther 688: [SYS_ptrace] = { Ptracedecode, Ppid_t, Pptr, Pdecint },
689: [SYS_recvmsg] = { Pfd, Pptr, Sendrecvflagsname },
690: [SYS_sendmsg] = { Pfd, Pptr, Sendrecvflagsname },
691: [SYS_recvfrom] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
692: [SYS_accept] = { Pfd, Pptr, Pptr },
693: [SYS_getpeername] = { Pfd, Pptr, Pptr },
694: [SYS_getsockname] = { Pfd, Pptr, Pptr },
695: [SYS_access] = { Ppath, Accessmodename },
696: [SYS_chflags] = { Ppath, Chflagsname },
697: [SYS_fchflags] = { Pfd, Chflagsname },
698: [SYS_kill] = { Ppgid, Signame },
699: [SYS_stat] = { Ppath, Pptr },
700: [SYS_lstat] = { Ppath, Pptr },
701: [SYS_dup] = { Pfd },
702: [SYS_fstatat] = { Atfd, Ppath, Pptr, Atflagsname },
703: [SYS_profil] = { Pptr, Pbigsize, Pbigsize, Pdecuint },
704: [SYS_ktrace] = { Ppath, Ktraceopname, Ktracefacname, Ppgid },
705: [SYS_sigaction] = { Signame, Pptr, Pptr },
706: [SYS_sigprocmask] = { Sigprocmaskhowname, Sigset },
1.127 guenther 707: [SYS_getlogin_r] = { Pptr, Psize },
1.92 guenther 708: [SYS_setlogin] = { Pptr },
709: [SYS_acct] = { Ppath },
710: [SYS_fstat] = { Pfd, Pptr },
711: [SYS_ioctl] = { Pfd, Ioctldecode, Pptr },
712: [SYS_reboot] = { Rebootoptname },
713: [SYS_revoke] = { Ppath },
714: [SYS_symlink] = { Ppath, Ppath },
715: [SYS_readlink] = { Ppath, Pptr, Psize },
716: [SYS_execve] = { Ppath, Pptr, Pptr },
717: [SYS_umask] = { Modename },
718: [SYS_chroot] = { Ppath },
719: [SYS_getfsstat] = { Pptr, Pbigsize, Mountflagsname },
720: [SYS_statfs] = { Ppath, Pptr },
721: [SYS_fstatfs] = { Pfd, Pptr },
722: [SYS_fhstatfs] = { Pptr, Pptr },
723: [SYS_gettimeofday] = { Pptr, Pptr },
724: [SYS_settimeofday] = { Pptr, Pptr },
725: [SYS_setitimer] = { Itimername, Pptr, Pptr },
726: [SYS_getitimer] = { Itimername, Pptr },
727: [SYS_select] = { Pcount, Pptr, Pptr, Pptr, Pptr },
728: [SYS_kevent] = { Pfd, Pptr, Pcount, Pptr, Pcount, Pptr },
729: [SYS_munmap] = { Pptr, Pbigsize },
730: [SYS_mprotect] = { Pptr, Pbigsize, Mmapprotname },
731: [SYS_madvise] = { Pptr, Pbigsize, Madvisebehavname },
732: [SYS_utimes] = { Ppath, Pptr },
733: [SYS_futimes] = { Pfd, Pptr },
1.124 guenther 734: [SYS_kbind] = { Pptr, Psize, Phexlonglong },
1.92 guenther 735: [SYS_mincore] = { Pptr, Pbigsize, Pptr },
736: [SYS_getgroups] = { Pcount, Pptr },
737: [SYS_setgroups] = { Pcount, Pptr },
738: [SYS_setpgid] = { Ppid_t, Ppid_t },
1.130 mpi 739: [SYS_futex] = { Pptr, Futexflagname, Pcount, Pptr, Pptr },
1.125 guenther 740: [SYS_sendsyslog] = { Pptr, Psize, Syslogflagname },
1.92 guenther 741: [SYS_utimensat] = { Atfd, Ppath, Pptr, Atflagsname },
742: [SYS_futimens] = { Pfd, Pptr },
743: [SYS_clock_gettime] = { Clockname, Pptr },
744: [SYS_clock_settime] = { Clockname, Pptr },
745: [SYS_clock_getres] = { Clockname, Pptr },
746: [SYS_dup2] = { Pfd, Pfd },
747: [SYS_nanosleep] = { Pptr, Pptr },
748: [SYS_fcntl] = { Pfd, PASS_TWO, Fcntlcmdname },
749: [SYS_accept4] = { Pfd, Pptr, Pptr, Sockflagsname },
750: [SYS___thrsleep] = { Pptr, Clockname, Pptr, Pptr, Pptr },
751: [SYS_fsync] = { Pfd },
752: [SYS_setpriority] = { Prioname, Ppid_t, Pdecint },
1.99 guenther 753: [SYS_socket] = { Sockfamilyname, Socktypename, Sockprotoname },
1.92 guenther 754: [SYS_connect] = { Pfd, Pptr, Pucount },
755: [SYS_getdents] = { Pfd, Pptr, Pbigsize },
756: [SYS_getpriority] = { Prioname, Ppid_t },
757: [SYS_pipe2] = { Pptr, Flagsname },
758: [SYS_dup3] = { Pfd, Pfd, Flagsname },
759: [SYS_sigreturn] = { Pptr },
760: [SYS_bind] = { Pfd, Pptr, Pucount },
761: [SYS_setsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pdecint },
762: [SYS_listen] = { Pfd, Pdecint },
763: [SYS_chflagsat] = { Atfd, Ppath, Chflagsname, Atflagsname },
764: [SYS_ppoll] = { Pptr, Pucount, Pptr, Pptr },
765: [SYS_pselect] = { Pcount, Pptr, Pptr, Pptr, Pptr, Pptr },
766: [SYS_sigsuspend] = { Sigset },
767: [SYS_getsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pptr },
1.120 guenther 768: [SYS_thrkill] = { Ppid_t, Signame, Pptr },
1.92 guenther 769: [SYS_readv] = { Pfd, Pptr, Pcount },
770: [SYS_writev] = { Pfd, Pptr, Pcount },
1.94 guenther 771: [SYS_fchown] = { Pfd, Uidname, Gidname },
1.92 guenther 772: [SYS_fchmod] = { Pfd, Modename },
1.94 guenther 773: [SYS_setreuid] = { Uidname, Uidname },
774: [SYS_setregid] = { Gidname, Gidname },
1.92 guenther 775: [SYS_rename] = { Ppath, Ppath },
776: [SYS_flock] = { Pfd, Flockname },
777: [SYS_mkfifo] = { Ppath, Modename },
778: [SYS_sendto] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
779: [SYS_shutdown] = { Pfd, Shutdownhowname },
1.99 guenther 780: [SYS_socketpair] = { Sockfamilyname, Socktypename, Sockprotoname, Pptr },
1.92 guenther 781: [SYS_mkdir] = { Ppath, Modename },
782: [SYS_rmdir] = { Ppath },
783: [SYS_adjtime] = { Pptr, Pptr },
1.94 guenther 784: [SYS_quotactl] = { Ppath, Quotactlname, Uidname, Pptr },
1.92 guenther 785: [SYS_nfssvc] = { Phexint, Pptr },
786: [SYS_getfh] = { Ppath, Pptr },
787: [SYS_sysarch] = { Pdecint, Pptr },
788: [SYS_pread] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
789: [SYS_pwrite] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
1.94 guenther 790: [SYS_setgid] = { Gidname },
791: [SYS_setegid] = { Gidname },
792: [SYS_seteuid] = { Uidname },
1.92 guenther 793: [SYS_pathconf] = { Ppath, Pathconfname },
794: [SYS_fpathconf] = { Pfd, Pathconfname },
795: [SYS_swapctl] = { Swapctlname, Pptr, Pdecint },
796: [SYS_getrlimit] = { Rlimitname, Pptr },
797: [SYS_setrlimit] = { Rlimitname, Pptr },
798: [SYS_mmap] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
799: [SYS_lseek] = { Pfd, PAD, Poff_t, Whencename },
800: [SYS_truncate] = { Ppath, PAD, Poff_t },
801: [SYS_ftruncate] = { Pfd, PAD, Poff_t },
1.122 guenther 802: [SYS_sysctl] = { Pptr, Pcount, Pptr, Pptr, Pptr, Psize },
1.92 guenther 803: [SYS_mlock] = { Pptr, Pbigsize },
804: [SYS_munlock] = { Pptr, Pbigsize },
805: [SYS_getpgid] = { Ppid_t },
806: [SYS_utrace] = { Pptr, Pptr, Psize },
807: [SYS_semget] = { Pkey_t, Pcount, Semgetname },
808: [SYS_msgget] = { Pkey_t, Msgflgname },
809: [SYS_msgsnd] = { Pmsqid, Pptr, Psize, Msgflgname },
810: [SYS_msgrcv] = { Pmsqid, Pptr, Psize, Pdeclong, Msgflgname },
811: [SYS_shmat] = { Pshmid, Pptr, Shmatname },
812: [SYS_shmdt] = { Pptr },
813: [SYS_minherit] = { Pptr, Pbigsize, Minheritname },
814: [SYS_poll] = { Pptr, Pucount, Polltimeout },
1.94 guenther 815: [SYS_lchown] = { Ppath, Uidname, Gidname },
1.92 guenther 816: [SYS_getsid] = { Ppid_t },
817: [SYS_msync] = { Pptr, Pbigsize, Msyncflagsname },
818: [SYS_pipe] = { Pptr },
819: [SYS_fhopen] = { Pptr, Openflagsname },
820: [SYS_preadv] = { Pfd, Pptr, Pcount, PAD, Poff_t },
821: [SYS_pwritev] = { Pfd, Pptr, Pcount, PAD, Poff_t },
822: [SYS_mlockall] = { Mlockallname },
823: [SYS_getresuid] = { Pptr, Pptr, Pptr },
1.94 guenther 824: [SYS_setresuid] = { Uidname, Uidname, Uidname },
1.92 guenther 825: [SYS_getresgid] = { Pptr, Pptr, Pptr },
1.94 guenther 826: [SYS_setresgid] = { Gidname, Gidname, Gidname },
1.92 guenther 827: [SYS_mquery] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
828: [SYS_closefrom] = { Pfd },
829: [SYS_sigaltstack] = { Pptr, Pptr },
830: [SYS_shmget] = { Pkey_t, Pbigsize, Semgetname },
831: [SYS_semop] = { Psemid, Pptr, Psize },
832: [SYS_fhstat] = { Pptr, Pptr },
833: [SYS___semctl] = { Psemid, Pcount, Semctlname, Pptr },
834: [SYS_shmctl] = { Pshmid, Shmctlname, Pptr },
835: [SYS_msgctl] = { Pmsqid, Shmctlname, Pptr },
836: [SYS___thrwakeup] = { Pptr, Pcount },
837: [SYS___threxit] = { Pptr },
838: [SYS___thrsigdivert] = { Sigset, Pptr, Pptr },
839: [SYS___getcwd] = { Pptr, Psize },
840: [SYS_adjfreq] = { Pptr, Pptr },
841: [SYS_setrtable] = { Pdecint },
842: [SYS_faccessat] = { Atfd, Ppath, Accessmodename, Atflagsname },
843: [SYS_fchmodat] = { Atfd, Ppath, Modename, Atflagsname },
1.94 guenther 844: [SYS_fchownat] = { Atfd, Ppath, Uidname, Gidname, Atflagsname },
1.92 guenther 845: [SYS_linkat] = { Atfd, Ppath, Atfd, Ppath, Atflagsname },
846: [SYS_mkdirat] = { Atfd, Ppath, Modename },
847: [SYS_mkfifoat] = { Atfd, Ppath, Modename },
848: [SYS_mknodat] = { Atfd, Ppath, Modename, Pdev_t },
849: [SYS_openat] = { Atfd, Ppath, PASS_TWO, Flagsandmodename },
850: [SYS_readlinkat] = { Atfd, Ppath, Pptr, Psize },
851: [SYS_renameat] = { Atfd, Ppath, Atfd, Ppath },
1.98 guenther 852: [SYS_symlinkat] = { Ppath, Atfd, Ppath },
1.92 guenther 853: [SYS_unlinkat] = { Atfd, Ppath, Atflagsname },
854: [SYS___set_tcb] = { Pptr },
855: };
856:
1.51 otto 857:
1.12 espie 858: static void
1.93 jsg 859: ktrsyscall(struct ktr_syscall *ktr, size_t ktrlen)
1.1 deraadt 860: {
1.92 guenther 861: register_t *ap;
862: int narg;
863: char sep;
864:
1.93 jsg 865: if (ktr->ktr_argsize > ktrlen)
866: errx(1, "syscall argument length %d > ktr header length %zu",
867: ktr->ktr_argsize, ktrlen);
868:
1.52 otto 869: narg = ktr->ktr_argsize / sizeof(register_t);
870: sep = '\0';
1.1 deraadt 871:
1.122 guenther 872: if (ktr->ktr_code >= SYS_MAXSYSCALL || ktr->ktr_code < 0)
1.1 deraadt 873: (void)printf("[%d]", ktr->ktr_code);
874: else
1.122 guenther 875: (void)printf("%s", syscallnames[ktr->ktr_code]);
1.1 deraadt 876: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 877: (void)putchar('(');
1.52 otto 878:
1.122 guenther 879: if (ktr->ktr_code == SYS_sysctl && fancy) {
1.62 otto 880: const char *s;
1.94 guenther 881: int n, i, *top;
1.52 otto 882:
883: n = ap[1];
884: if (n > CTL_MAXNAME)
885: n = CTL_MAXNAME;
1.93 jsg 886: if (n < 0)
887: errx(1, "invalid sysctl length %d", n);
1.94 guenther 888: if (n > 0) {
889: top = (int *)(ap + 6);
890: printf("%d", top[0]);
891: for (i = 1; i < n; i++)
892: printf(".%d", top[i]);
893: if ((s = kresolvsysctl(0, top)) != NULL) {
894: printf("<%s", s);
895: for (i = 1; i < n; i++) {
896: if ((s = kresolvsysctl(i, top)) != NULL)
897: printf(".%s", s);
898: else
899: printf(".%d", top[i]);
900: }
901: putchar('>');
902: }
1.1 deraadt 903: }
1.52 otto 904:
905: sep = ',';
906: ap += 2;
907: narg -= 2;
1.92 guenther 908: } else if (ktr->ktr_code < nitems(scargs)) {
909: const formatter *fmts = scargs[ktr->ktr_code];
910: int fmt;
1.52 otto 911:
1.92 guenther 912: while (narg && (fmt = *fmts) != 0) {
913: if (sep)
914: putchar(sep);
915: sep = ',';
916: if (!fancy && !FMT_IS_NONFANCY(fmt))
917: fmt = Pnonfancy;
918: if (fmt > 0)
919: formatters[fmt]((int)*ap);
920: else if (long_formatters[-fmt](*ap))
921: sep = '\0';
922: fmts++;
923: ap++;
924: narg--;
925: }
1.52 otto 926: }
927:
1.93 jsg 928: while (narg > 0) {
1.52 otto 929: if (sep)
930: putchar(sep);
931: if (decimal)
932: (void)printf("%ld", (long)*ap);
933: else
934: (void)printf("%#lx", (long)*ap);
935: sep = ',';
936: ap++;
937: narg--;
1.1 deraadt 938: }
1.27 mickey 939: (void)printf(")\n");
1.62 otto 940: }
941:
942: static struct ctlname topname[] = CTL_NAMES;
943: static struct ctlname kernname[] = CTL_KERN_NAMES;
944: static struct ctlname vmname[] = CTL_VM_NAMES;
945: static struct ctlname fsname[] = CTL_FS_NAMES;
946: static struct ctlname netname[] = CTL_NET_NAMES;
947: static struct ctlname hwname[] = CTL_HW_NAMES;
948: static struct ctlname debugname[CTL_DEBUG_MAXID];
949: static struct ctlname kernmallocname[] = CTL_KERN_MALLOC_NAMES;
950: static struct ctlname forkstatname[] = CTL_KERN_FORKSTAT_NAMES;
951: static struct ctlname nchstatsname[] = CTL_KERN_NCHSTATS_NAMES;
1.88 guenther 952: static struct ctlname kernprocname[] = {
1.64 guenther 953: { NULL },
954: { "all" },
955: { "pid" },
956: { "pgrp" },
957: { "session" },
958: { "tty" },
959: { "uid" },
960: { "ruid" },
1.77 guenther 961: { "kthread" },
1.64 guenther 962: };
1.62 otto 963: static struct ctlname ttysname[] = CTL_KERN_TTY_NAMES;
964: static struct ctlname semname[] = CTL_KERN_SEMINFO_NAMES;
965: static struct ctlname shmname[] = CTL_KERN_SHMINFO_NAMES;
966: static struct ctlname watchdogname[] = CTL_KERN_WATCHDOG_NAMES;
967: static struct ctlname tcname[] = CTL_KERN_TIMECOUNTER_NAMES;
968: #ifdef CTL_MACHDEP_NAMES
969: static struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
970: #endif
971: static struct ctlname ddbname[] = CTL_DDB_NAMES;
972:
973: #ifndef nitems
974: #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
975: #endif
976:
977: #define SETNAME(name) do { names = (name); limit = nitems(name); } while (0)
978:
979: static const char *
1.94 guenther 980: kresolvsysctl(int depth, const int *top)
1.62 otto 981: {
982: struct ctlname *names;
983: size_t limit;
1.94 guenther 984: int idx = top[depth];
1.62 otto 985:
986: names = NULL;
987:
988: switch (depth) {
989: case 0:
990: SETNAME(topname);
991: break;
992: case 1:
993: switch (top[0]) {
994: case CTL_KERN:
995: SETNAME(kernname);
996: break;
997: case CTL_VM:
998: SETNAME(vmname);
999: break;
1000: case CTL_FS:
1001: SETNAME(fsname);
1002: break;
1003: case CTL_NET:
1004: SETNAME(netname);
1005: break;
1006: case CTL_DEBUG:
1007: SETNAME(debugname);
1008: break;
1009: case CTL_HW:
1010: SETNAME(hwname);
1011: break;
1012: #ifdef CTL_MACHDEP_NAMES
1013: case CTL_MACHDEP:
1014: SETNAME(machdepname);
1015: break;
1016: #endif
1017: case CTL_DDB:
1018: SETNAME(ddbname);
1019: break;
1020: }
1021: break;
1022: case 2:
1023: switch (top[0]) {
1024: case CTL_KERN:
1025: switch (top[1]) {
1026: case KERN_MALLOCSTATS:
1027: SETNAME(kernmallocname);
1028: break;
1029: case KERN_FORKSTAT:
1030: SETNAME(forkstatname);
1031: break;
1032: case KERN_NCHSTATS:
1033: SETNAME(nchstatsname);
1034: break;
1035: case KERN_TTY:
1036: SETNAME(ttysname);
1037: break;
1038: case KERN_SEMINFO:
1039: SETNAME(semname);
1040: break;
1041: case KERN_SHMINFO:
1042: SETNAME(shmname);
1043: break;
1044: case KERN_WATCHDOG:
1045: SETNAME(watchdogname);
1046: break;
1.64 guenther 1047: case KERN_PROC:
1048: idx++; /* zero is valid at this level */
1049: SETNAME(kernprocname);
1050: break;
1.62 otto 1051: case KERN_TIMECOUNTER:
1052: SETNAME(tcname);
1053: break;
1054: }
1055: }
1056: break;
1057: }
1058: if (names != NULL && idx > 0 && idx < limit)
1059: return (names[idx].ctl_name);
1060: return (NULL);
1.1 deraadt 1061: }
1062:
1.12 espie 1063: static void
1.103 guenther 1064: ktrsysret(struct ktr_sysret *ktr, size_t ktrlen)
1.1 deraadt 1065: {
1.103 guenther 1066: register_t ret = 0;
1067: long long retll;
1.12 espie 1068: int error = ktr->ktr_error;
1069: int code = ktr->ktr_code;
1.1 deraadt 1070:
1.103 guenther 1071: if (ktrlen < sizeof(*ktr))
1072: errx(1, "sysret length %zu < ktr header length %zu",
1073: ktrlen, sizeof(*ktr));
1074: ktrlen -= sizeof(*ktr);
1075: if (error == 0) {
1076: if (ktrlen == sizeof(ret)) {
1077: memcpy(&ret, ktr+1, sizeof(ret));
1078: retll = ret;
1079: } else if (ktrlen == sizeof(retll))
1080: memcpy(&retll, ktr+1, sizeof(retll));
1081: else
1082: errx(1, "sysret bogus length %zu", ktrlen);
1083: }
1084:
1.122 guenther 1085: if (code >= SYS_MAXSYSCALL || code < 0)
1.1 deraadt 1086: (void)printf("[%d] ", code);
1.122 guenther 1087: else
1088: (void)printf("%s ", syscallnames[code]);
1.1 deraadt 1089:
1.127 guenther 1090: doerr:
1.1 deraadt 1091: if (error == 0) {
1092: if (fancy) {
1.122 guenther 1093: switch (code) {
1.103 guenther 1094: case SYS_lseek:
1095: (void)printf("%lld", retll);
1096: if (retll < 0 || retll > 9)
1097: (void)printf("/%#llx", retll);
1098: break;
1.64 guenther 1099: case SYS_sigprocmask:
1.73 guenther 1100: case SYS_sigpending:
1.64 guenther 1101: sigset(ret);
1102: break;
1103: case SYS___thrsigdivert:
1104: signame(ret);
1.94 guenther 1105: break;
1106: case SYS_getuid:
1107: case SYS_geteuid:
1108: uidname(ret);
1109: break;
1110: case SYS_getgid:
1111: case SYS_getegid:
1112: gidname(ret);
1.64 guenther 1113: break;
1.127 guenther 1114: /* syscalls that return errno values */
1115: case SYS_getlogin_r:
1116: case SYS___thrsleep:
1.135 guenther 1117: case SYS_futex:
1.127 guenther 1118: if ((error = ret) != 0)
1119: goto doerr;
1120: /* FALLTHROUGH */
1.64 guenther 1121: default:
1122: (void)printf("%ld", (long)ret);
1123: if (ret < 0 || ret > 9)
1124: (void)printf("/%#lx", (long)ret);
1125: }
1.1 deraadt 1126: } else {
1127: if (decimal)
1.103 guenther 1128: (void)printf("%lld", retll);
1.1 deraadt 1129: else
1.103 guenther 1130: (void)printf("%#llx", retll);
1.1 deraadt 1131: }
1132: } else if (error == ERESTART)
1133: (void)printf("RESTART");
1134: else if (error == EJUSTRETURN)
1135: (void)printf("JUSTRETURN");
1136: else {
1.127 guenther 1137: (void)printf("-1 errno %d", error);
1.1 deraadt 1138: if (fancy)
1.127 guenther 1139: (void)printf(" %s", strerror(error));
1.1 deraadt 1140: }
1141: (void)putchar('\n');
1142: }
1143:
1.12 espie 1144: static void
1.37 tedu 1145: ktrnamei(const char *cp, size_t len)
1.1 deraadt 1146: {
1.126 guenther 1147: showbufc(basecol, (unsigned char *)cp, len, VIS_DQ | VIS_TAB | VIS_NL);
1.1 deraadt 1148: }
1149:
1.111 guenther 1150: void
1.126 guenther 1151: showbufc(int col, unsigned char *dp, size_t datalen, int flags)
1.106 guenther 1152: {
1.126 guenther 1153: int width;
1154: unsigned char visbuf[5], *cp;
1.106 guenther 1155:
1.126 guenther 1156: flags |= VIS_CSTYLE;
1.106 guenther 1157: putchar('"');
1.111 guenther 1158: col++;
1.106 guenther 1159: for (; datalen > 0; datalen--, dp++) {
1.126 guenther 1160: (void)vis(visbuf, *dp, flags, *(dp+1));
1.106 guenther 1161: cp = visbuf;
1162:
1163: /*
1164: * Keep track of printables and
1165: * space chars (like fold(1)).
1166: */
1167: if (col == 0) {
1168: (void)putchar('\t');
1169: col = 8;
1170: }
1171: switch (*cp) {
1172: case '\n':
1173: col = 0;
1174: (void)putchar('\n');
1175: continue;
1176: case '\t':
1177: width = 8 - (col&07);
1178: break;
1179: default:
1180: width = strlen(cp);
1181: }
1182: if (col + width > (screenwidth-2)) {
1183: (void)printf("\\\n\t");
1184: col = 8;
1185: }
1186: col += width;
1187: do {
1188: (void)putchar(*cp++);
1189: } while (*cp);
1190: }
1191: if (col == 0)
1192: (void)printf(" ");
1193: (void)printf("\"\n");
1194: }
1195:
1196: static void
1.81 miod 1197: showbuf(unsigned char *dp, size_t datalen)
1.1 deraadt 1198: {
1.37 tedu 1199: int i, j;
1.126 guenther 1200: int col = 0, bpl;
1201: unsigned char c;
1.1 deraadt 1202:
1.31 tedu 1203: if (iohex == 1) {
1204: putchar('\t');
1205: col = 8;
1206: for (i = 0; i < datalen; i++) {
1.35 tedu 1207: printf("%02x", dp[i]);
1.31 tedu 1208: col += 3;
1209: if (i < datalen - 1) {
1210: if (col + 3 > screenwidth) {
1211: printf("\n\t");
1212: col = 8;
1213: } else
1214: putchar(' ');
1215: }
1216: }
1217: putchar('\n');
1218: return;
1219: }
1220: if (iohex == 2) {
1221: bpl = (screenwidth - 13)/4;
1222: if (bpl <= 0)
1223: bpl = 1;
1224: for (i = 0; i < datalen; i += bpl) {
1225: printf(" %04x: ", i);
1226: for (j = 0; j < bpl; j++) {
1227: if (i+j >= datalen)
1228: printf(" ");
1229: else
1.35 tedu 1230: printf("%02x ", dp[i+j]);
1.31 tedu 1231: }
1232: putchar(' ');
1233: for (j = 0; j < bpl; j++) {
1234: if (i+j >= datalen)
1235: break;
1236: c = dp[i+j];
1237: if (!isprint(c))
1238: c = '.';
1239: putchar(c);
1240: }
1241: putchar('\n');
1242: }
1243: return;
1244: }
1.111 guenther 1245:
1246: (void)printf(" ");
1.126 guenther 1247: showbufc(7, dp, datalen, 0);
1.1 deraadt 1248: }
1249:
1.12 espie 1250: static void
1.81 miod 1251: ktrgenio(struct ktr_genio *ktr, size_t len)
1252: {
1253: unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
1.93 jsg 1254: size_t datalen;
1255:
1256: if (len < sizeof(struct ktr_genio))
1257: errx(1, "invalid ktr genio length %zu", len);
1258:
1259: datalen = len - sizeof(struct ktr_genio);
1.81 miod 1260:
1261: printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
1262: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
1263: if (maxdata == 0)
1264: return;
1265: if (datalen > maxdata)
1266: datalen = maxdata;
1267: if (iohex && !datalen)
1268: return;
1269: showbuf(dp, datalen);
1270: }
1271:
1272: static void
1.17 deraadt 1273: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 1274: {
1.93 jsg 1275: signame(psig->signo);
1.96 bluhm 1276: printf(" ");
1.1 deraadt 1277: if (psig->action == SIG_DFL)
1.63 deraadt 1278: (void)printf("SIG_DFL");
1.64 guenther 1279: else {
1280: (void)printf("caught handler=0x%lx mask=",
1281: (u_long)psig->action);
1282: sigset(psig->mask);
1283: }
1.63 deraadt 1284: if (psig->code) {
1285: printf(" code ");
1286: if (fancy) {
1287: switch (psig->signo) {
1288: case SIGILL:
1289: sigill_name(psig->code);
1290: break;
1291: case SIGTRAP:
1292: sigtrap_name(psig->code);
1293: break;
1294: case SIGEMT:
1295: sigemt_name(psig->code);
1296: break;
1297: case SIGFPE:
1298: sigfpe_name(psig->code);
1299: break;
1300: case SIGBUS:
1301: sigbus_name(psig->code);
1302: break;
1303: case SIGSEGV:
1304: sigsegv_name(psig->code);
1305: break;
1306: case SIGCHLD:
1307: sigchld_name(psig->code);
1308: break;
1309: }
1310: }
1311: printf("<%d>", psig->code);
1312: }
1313:
1.14 deraadt 1314: switch (psig->signo) {
1315: case SIGSEGV:
1316: case SIGILL:
1317: case SIGBUS:
1318: case SIGFPE:
1319: printf(" addr=%p trapno=%d", psig->si.si_addr,
1320: psig->si.si_trapno);
1321: break;
1322: default:
1323: break;
1324: }
1325: printf("\n");
1.1 deraadt 1326: }
1327:
1.64 guenther 1328: static void
1.81 miod 1329: ktruser(struct ktr_user *usr, size_t len)
1330: {
1.93 jsg 1331: if (len < sizeof(struct ktr_user))
1332: errx(1, "invalid ktr user length %zu", len);
1.81 miod 1333: len -= sizeof(struct ktr_user);
1334: printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
1335: printf(" %zu bytes\n", len);
1336: showbuf((unsigned char *)(usr + 1), len);
1.106 guenther 1337: }
1338:
1339: static void
1340: ktrexec(const char *ptr, size_t len)
1341: {
1.111 guenther 1342: int i, col;
1.106 guenther 1343: size_t l;
1344:
1345: putchar('\n');
1346: i = 0;
1347: while (len > 0) {
1348: l = strnlen(ptr, len);
1.111 guenther 1349: col = printf("\t[%d] = ", i++);
1350: col += 7; /* tab expands from 1 to 8 columns */
1.126 guenther 1351: showbufc(col, (unsigned char *)ptr, l, VIS_DQ|VIS_TAB|VIS_NL);
1.106 guenther 1352: if (l == len) {
1353: printf("\tunterminated argument\n");
1354: break;
1355: }
1356: len -= l + 1;
1357: ptr += l + 1;
1358: }
1.117 deraadt 1359: }
1360:
1361: static void
1362: ktrpledge(struct ktr_pledge *pledge, size_t len)
1363: {
1.118 deraadt 1364: char *name = "";
1.117 deraadt 1365: int i;
1366:
1367: if (len < sizeof(struct ktr_pledge))
1368: errx(1, "invalid ktr pledge length %zu", len);
1369:
1.122 guenther 1370: if (pledge->syscall >= SYS_MAXSYSCALL || pledge->syscall < 0)
1.117 deraadt 1371: (void)printf("[%d]", pledge->syscall);
1372: else
1.122 guenther 1373: (void)printf("%s", syscallnames[pledge->syscall]);
1.117 deraadt 1374: printf(", ");
1.118 deraadt 1375: for (i = 0; pledge->code && pledgenames[i].bits != 0; i++) {
1.117 deraadt 1376: if (pledgenames[i].bits & pledge->code) {
1.118 deraadt 1377: name = pledgenames[i].name;
1.117 deraadt 1378: break;
1379: }
1380: }
1.118 deraadt 1381: printf("\"%s\"", name);
1.117 deraadt 1382: (void)printf(", errno %d", pledge->error);
1383: if (fancy)
1384: (void)printf(" %s", strerror(pledge->error));
1385: printf("\n");
1.81 miod 1386: }
1387:
1388: static void
1.17 deraadt 1389: usage(void)
1.1 deraadt 1390: {
1391:
1.19 mickey 1392: extern char *__progname;
1393: fprintf(stderr, "usage: %s "
1.122 guenther 1394: "[-dHlnRTXx] [-f file] [-m maxdata] [-p pid]\n"
1.129 guenther 1395: "%*s[-t [cinpstuxX+]]\n",
1.51 otto 1396: __progname, (int)(sizeof("usage: ") + strlen(__progname)), "");
1.1 deraadt 1397: exit(1);
1398: }
1399:
1.61 matthew 1400:
1.92 guenther 1401: /*
1402: * FORMATTERS
1403: */
1404:
1405: static void
1406: ioctldecode(int cmd)
1407: {
1408: char dirbuf[4], *dir = dirbuf;
1409: const char *cp;
1410:
1411: if ((cp = ioctlname((unsigned)cmd)) != NULL) {
1412: (void)printf("%s", cp);
1413: return;
1414: }
1415:
1416: if (cmd & IOC_IN)
1417: *dir++ = 'W';
1418: if (cmd & IOC_OUT)
1419: *dir++ = 'R';
1420: *dir = '\0';
1421:
1.109 zhuk 1422: printf("_IO%s('%c',%d",
1.92 guenther 1423: dirbuf, (int)((cmd >> 8) & 0xff), cmd & 0xff);
1424: if ((cmd & IOC_VOID) == 0)
1425: printf(decimal ? ",%u)" : ",%#x)", (cmd >> 16) & 0xff);
1426: else
1427: printf(")");
1428: }
1429:
1430: static void
1431: ptracedecode(int request)
1432: {
1433: if (request >= 0 && request < nitems(ptrace_ops))
1434: (void)printf("%s", ptrace_ops[request]);
1435: else switch(request) {
1436: #ifdef PT_GETFPREGS
1437: case PT_GETFPREGS:
1438: (void)printf("PT_GETFPREGS");
1439: break;
1440: #endif
1441: case PT_GETREGS:
1442: (void)printf("PT_GETREGS");
1443: break;
1444: #ifdef PT_GETXMMREGS
1445: case PT_GETXMMREGS:
1446: (void)printf("PT_GETXMMREGS");
1447: break;
1448: #endif
1449: #ifdef PT_SETFPREGS
1450: case PT_SETFPREGS:
1451: (void)printf("PT_SETFPREGS");
1452: break;
1453: #endif
1454: case PT_SETREGS:
1455: (void)printf("PT_SETREGS");
1456: break;
1457: #ifdef PT_SETXMMREGS
1458: case PT_SETXMMREGS:
1459: (void)printf("PT_SETXMMREGS");
1460: break;
1461: #endif
1462: #ifdef PT_STEP
1463: case PT_STEP:
1464: (void)printf("PT_STEP");
1465: break;
1466: #endif
1467: #ifdef PT_WCOOKIE
1468: case PT_WCOOKIE:
1469: (void)printf("PT_WCOOKIE");
1470: break;
1471: #endif
1472: default:
1473: pdecint(request);
1474: }
1475: }
1476:
1477:
1.61 matthew 1478: static void
1479: atfd(int fd)
1480: {
1481: if (fd == AT_FDCWD)
1482: (void)printf("AT_FDCWD");
1483: else
1.92 guenther 1484: pdecint(fd);
1.77 guenther 1485: }
1486:
1487: static void
1488: polltimeout(int timeout)
1489: {
1490: if (timeout == INFTIM)
1491: (void)printf("INFTIM");
1492: else
1.92 guenther 1493: pdecint(timeout);
1.82 guenther 1494: }
1495:
1496: static void
1497: wait4pid(int pid)
1498: {
1499: if (pid == WAIT_ANY)
1500: (void)printf("WAIT_ANY");
1501: else if (pid == WAIT_MYPGRP)
1502: (void)printf("WAIT_MYPGRP");
1503: else
1.92 guenther 1504: pdecint(pid); /* ppgid */
1.1 deraadt 1505: }
1.83 guenther 1506:
1507: static void
1508: signame(int sig)
1509: {
1510: if (sig > 0 && sig < NSIG)
1511: (void)printf("SIG%s", sys_signame[sig]);
1512: else
1513: (void)printf("SIG %d", sig);
1514: }
1515:
1.84 guenther 1516: void
1.83 guenther 1517: sigset(int ss)
1518: {
1519: int or = 0;
1520: int cnt = 0;
1521: int i;
1522:
1523: for (i = 1; i < NSIG; i++)
1524: if (sigismember(&ss, i))
1525: cnt++;
1526: if (cnt > (NSIG-1)/2) {
1527: ss = ~ss;
1528: putchar('~');
1529: }
1530:
1531: if (ss == 0) {
1532: (void)printf("0<>");
1533: return;
1534: }
1535:
1536: printf("%#x<", ss);
1537: for (i = 1; i < NSIG; i++)
1538: if (sigismember(&ss, i)) {
1539: if (or) putchar('|'); else or=1;
1540: signame(i);
1541: }
1542: printf(">");
1543: }
1544:
1545: static void
1546: semctlname(int cmd)
1547: {
1548: switch (cmd) {
1549: case GETNCNT:
1550: (void)printf("GETNCNT");
1551: break;
1552: case GETPID:
1553: (void)printf("GETPID");
1554: break;
1555: case GETVAL:
1556: (void)printf("GETVAL");
1557: break;
1558: case GETALL:
1559: (void)printf("GETALL");
1560: break;
1561: case GETZCNT:
1562: (void)printf("GETZCNT");
1563: break;
1564: case SETVAL:
1565: (void)printf("SETVAL");
1566: break;
1567: case SETALL:
1568: (void)printf("SETALL");
1569: break;
1570: case IPC_RMID:
1571: (void)printf("IPC_RMID");
1572: break;
1573: case IPC_SET:
1574: (void)printf("IPC_SET");
1575: break;
1576: case IPC_STAT:
1577: (void)printf("IPC_STAT");
1578: break;
1579: default: /* Should not reach */
1.92 guenther 1580: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1581: }
1582: }
1583:
1584: static void
1.88 guenther 1585: shmctlname(int cmd)
1586: {
1.83 guenther 1587: switch (cmd) {
1588: case IPC_RMID:
1589: (void)printf("IPC_RMID");
1590: break;
1591: case IPC_SET:
1592: (void)printf("IPC_SET");
1593: break;
1594: case IPC_STAT:
1595: (void)printf("IPC_STAT");
1596: break;
1597: default: /* Should not reach */
1.92 guenther 1598: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1599: }
1600: }
1601:
1602:
1603: static void
1.88 guenther 1604: semgetname(int flag)
1605: {
1.83 guenther 1606: int or = 0;
1607: if_print_or(flag, IPC_CREAT, or);
1608: if_print_or(flag, IPC_EXCL, or);
1609: if_print_or(flag, SEM_R, or);
1610: if_print_or(flag, SEM_A, or);
1611: if_print_or(flag, (SEM_R>>3), or);
1612: if_print_or(flag, (SEM_A>>3), or);
1613: if_print_or(flag, (SEM_R>>6), or);
1614: if_print_or(flag, (SEM_A>>6), or);
1.92 guenther 1615:
1616: if (flag & ~(IPC_CREAT|IPC_EXCL|SEM_R|SEM_A|((SEM_R|SEM_A)>>3)|
1617: ((SEM_R|SEM_A)>>6)))
1618: printf("<invalid=%#x>", flag);
1.83 guenther 1619: }
1620:
1621:
1622: /*
1.92 guenther 1623: * Only used by SYS_open and SYS_openat. Unless O_CREAT is set in flags, the
1.83 guenther 1624: * mode argument is unused (and often bogus and misleading).
1625: */
1626: static void
1.92 guenther 1627: flagsandmodename(int mode)
1.88 guenther 1628: {
1.92 guenther 1629: openflagsname(arg1);
1630: if ((arg1 & O_CREAT) == O_CREAT) {
1.83 guenther 1631: (void)putchar(',');
1.92 guenther 1632: modename(mode);
1633: } else if (!fancy)
1634: (void)printf(",<unused>%#o", mode);
1.83 guenther 1635: }
1636:
1637: static void
1638: clockname(int clockid)
1639: {
1640: clocktypename(__CLOCK_TYPE(clockid));
1641: if (__CLOCK_PTID(clockid) != 0)
1642: printf("(%d)", __CLOCK_PTID(clockid));
1643: }
1644:
1645: /*
1646: * [g|s]etsockopt's level argument can either be SOL_SOCKET or a value
1.100 guenther 1647: * referring to a line in /etc/protocols.
1.83 guenther 1648: */
1649: static void
1.100 guenther 1650: sockoptlevelname(int optname)
1.83 guenther 1651: {
1.100 guenther 1652: struct protoent *pe;
1653:
1654: if (arg1 == SOL_SOCKET) {
1655: (void)printf("SOL_SOCKET,");
1656: sockoptname(optname);
1657: } else {
1658: pe = getprotobynumber(arg1);
1659: (void)printf("%u<%s>,%d", arg1,
1660: pe != NULL ? pe->p_name : "unknown", optname);
1661: }
1.83 guenther 1662: }
1663:
1.88 guenther 1664: static void
1665: ktraceopname(int ops)
1666: {
1667: int invalid = 0;
1668:
1669: printf("%#x<", ops);
1670: switch (KTROP(ops)) {
1671: case KTROP_SET:
1672: printf("KTROP_SET");
1673: break;
1674: case KTROP_CLEAR:
1675: printf("KTROP_CLEAR");
1676: break;
1677: case KTROP_CLEARFILE:
1678: printf("KTROP_CLEARFILE");
1679: break;
1680: default:
1681: printf("KTROP(%d)", KTROP(ops));
1682: invalid = 1;
1683: break;
1684: }
1.92 guenther 1685: if (ops & KTRFLAG_DESCEND) printf("|KTRFLAG_DESCEND");
1.88 guenther 1686: printf(">");
1687: if (invalid || (ops & ~(KTROP((unsigned)-1) | KTRFLAG_DESCEND)))
1.92 guenther 1688: (void)printf("<invalid>%d", ops);
1.88 guenther 1689: }