Annotation of src/usr.bin/kdump/kdump.c, Revision 1.138
1.138 ! schwarze 1: /* $OpenBSD: kdump.c,v 1.137 2019/01/11 18:46:30 deraadt 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_getgroups] = { Pcount, Pptr },
736: [SYS_setgroups] = { Pcount, Pptr },
737: [SYS_setpgid] = { Ppid_t, Ppid_t },
1.130 mpi 738: [SYS_futex] = { Pptr, Futexflagname, Pcount, Pptr, Pptr },
1.125 guenther 739: [SYS_sendsyslog] = { Pptr, Psize, Syslogflagname },
1.92 guenther 740: [SYS_utimensat] = { Atfd, Ppath, Pptr, Atflagsname },
741: [SYS_futimens] = { Pfd, Pptr },
742: [SYS_clock_gettime] = { Clockname, Pptr },
743: [SYS_clock_settime] = { Clockname, Pptr },
744: [SYS_clock_getres] = { Clockname, Pptr },
745: [SYS_dup2] = { Pfd, Pfd },
746: [SYS_nanosleep] = { Pptr, Pptr },
747: [SYS_fcntl] = { Pfd, PASS_TWO, Fcntlcmdname },
748: [SYS_accept4] = { Pfd, Pptr, Pptr, Sockflagsname },
749: [SYS___thrsleep] = { Pptr, Clockname, Pptr, Pptr, Pptr },
750: [SYS_fsync] = { Pfd },
751: [SYS_setpriority] = { Prioname, Ppid_t, Pdecint },
1.99 guenther 752: [SYS_socket] = { Sockfamilyname, Socktypename, Sockprotoname },
1.92 guenther 753: [SYS_connect] = { Pfd, Pptr, Pucount },
754: [SYS_getdents] = { Pfd, Pptr, Pbigsize },
755: [SYS_getpriority] = { Prioname, Ppid_t },
756: [SYS_pipe2] = { Pptr, Flagsname },
757: [SYS_dup3] = { Pfd, Pfd, Flagsname },
758: [SYS_sigreturn] = { Pptr },
759: [SYS_bind] = { Pfd, Pptr, Pucount },
760: [SYS_setsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pdecint },
761: [SYS_listen] = { Pfd, Pdecint },
762: [SYS_chflagsat] = { Atfd, Ppath, Chflagsname, Atflagsname },
763: [SYS_ppoll] = { Pptr, Pucount, Pptr, Pptr },
764: [SYS_pselect] = { Pcount, Pptr, Pptr, Pptr, Pptr, Pptr },
765: [SYS_sigsuspend] = { Sigset },
766: [SYS_getsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pptr },
1.120 guenther 767: [SYS_thrkill] = { Ppid_t, Signame, Pptr },
1.92 guenther 768: [SYS_readv] = { Pfd, Pptr, Pcount },
769: [SYS_writev] = { Pfd, Pptr, Pcount },
1.94 guenther 770: [SYS_fchown] = { Pfd, Uidname, Gidname },
1.92 guenther 771: [SYS_fchmod] = { Pfd, Modename },
1.94 guenther 772: [SYS_setreuid] = { Uidname, Uidname },
773: [SYS_setregid] = { Gidname, Gidname },
1.92 guenther 774: [SYS_rename] = { Ppath, Ppath },
775: [SYS_flock] = { Pfd, Flockname },
776: [SYS_mkfifo] = { Ppath, Modename },
777: [SYS_sendto] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
778: [SYS_shutdown] = { Pfd, Shutdownhowname },
1.99 guenther 779: [SYS_socketpair] = { Sockfamilyname, Socktypename, Sockprotoname, Pptr },
1.92 guenther 780: [SYS_mkdir] = { Ppath, Modename },
781: [SYS_rmdir] = { Ppath },
782: [SYS_adjtime] = { Pptr, Pptr },
1.94 guenther 783: [SYS_quotactl] = { Ppath, Quotactlname, Uidname, Pptr },
1.92 guenther 784: [SYS_nfssvc] = { Phexint, Pptr },
785: [SYS_getfh] = { Ppath, Pptr },
786: [SYS_sysarch] = { Pdecint, Pptr },
787: [SYS_pread] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
788: [SYS_pwrite] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
1.94 guenther 789: [SYS_setgid] = { Gidname },
790: [SYS_setegid] = { Gidname },
791: [SYS_seteuid] = { Uidname },
1.92 guenther 792: [SYS_pathconf] = { Ppath, Pathconfname },
793: [SYS_fpathconf] = { Pfd, Pathconfname },
794: [SYS_swapctl] = { Swapctlname, Pptr, Pdecint },
795: [SYS_getrlimit] = { Rlimitname, Pptr },
796: [SYS_setrlimit] = { Rlimitname, Pptr },
797: [SYS_mmap] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
798: [SYS_lseek] = { Pfd, PAD, Poff_t, Whencename },
799: [SYS_truncate] = { Ppath, PAD, Poff_t },
800: [SYS_ftruncate] = { Pfd, PAD, Poff_t },
1.122 guenther 801: [SYS_sysctl] = { Pptr, Pcount, Pptr, Pptr, Pptr, Psize },
1.92 guenther 802: [SYS_mlock] = { Pptr, Pbigsize },
803: [SYS_munlock] = { Pptr, Pbigsize },
804: [SYS_getpgid] = { Ppid_t },
805: [SYS_utrace] = { Pptr, Pptr, Psize },
806: [SYS_semget] = { Pkey_t, Pcount, Semgetname },
807: [SYS_msgget] = { Pkey_t, Msgflgname },
808: [SYS_msgsnd] = { Pmsqid, Pptr, Psize, Msgflgname },
809: [SYS_msgrcv] = { Pmsqid, Pptr, Psize, Pdeclong, Msgflgname },
810: [SYS_shmat] = { Pshmid, Pptr, Shmatname },
811: [SYS_shmdt] = { Pptr },
812: [SYS_minherit] = { Pptr, Pbigsize, Minheritname },
813: [SYS_poll] = { Pptr, Pucount, Polltimeout },
1.94 guenther 814: [SYS_lchown] = { Ppath, Uidname, Gidname },
1.92 guenther 815: [SYS_getsid] = { Ppid_t },
816: [SYS_msync] = { Pptr, Pbigsize, Msyncflagsname },
817: [SYS_pipe] = { Pptr },
818: [SYS_fhopen] = { Pptr, Openflagsname },
819: [SYS_preadv] = { Pfd, Pptr, Pcount, PAD, Poff_t },
820: [SYS_pwritev] = { Pfd, Pptr, Pcount, PAD, Poff_t },
821: [SYS_mlockall] = { Mlockallname },
822: [SYS_getresuid] = { Pptr, Pptr, Pptr },
1.94 guenther 823: [SYS_setresuid] = { Uidname, Uidname, Uidname },
1.92 guenther 824: [SYS_getresgid] = { Pptr, Pptr, Pptr },
1.94 guenther 825: [SYS_setresgid] = { Gidname, Gidname, Gidname },
1.92 guenther 826: [SYS_mquery] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
827: [SYS_closefrom] = { Pfd },
828: [SYS_sigaltstack] = { Pptr, Pptr },
829: [SYS_shmget] = { Pkey_t, Pbigsize, Semgetname },
830: [SYS_semop] = { Psemid, Pptr, Psize },
831: [SYS_fhstat] = { Pptr, Pptr },
832: [SYS___semctl] = { Psemid, Pcount, Semctlname, Pptr },
833: [SYS_shmctl] = { Pshmid, Shmctlname, Pptr },
834: [SYS_msgctl] = { Pmsqid, Shmctlname, Pptr },
835: [SYS___thrwakeup] = { Pptr, Pcount },
836: [SYS___threxit] = { Pptr },
837: [SYS___thrsigdivert] = { Sigset, Pptr, Pptr },
838: [SYS___getcwd] = { Pptr, Psize },
839: [SYS_adjfreq] = { Pptr, Pptr },
840: [SYS_setrtable] = { Pdecint },
841: [SYS_faccessat] = { Atfd, Ppath, Accessmodename, Atflagsname },
842: [SYS_fchmodat] = { Atfd, Ppath, Modename, Atflagsname },
1.94 guenther 843: [SYS_fchownat] = { Atfd, Ppath, Uidname, Gidname, Atflagsname },
1.92 guenther 844: [SYS_linkat] = { Atfd, Ppath, Atfd, Ppath, Atflagsname },
845: [SYS_mkdirat] = { Atfd, Ppath, Modename },
846: [SYS_mkfifoat] = { Atfd, Ppath, Modename },
847: [SYS_mknodat] = { Atfd, Ppath, Modename, Pdev_t },
848: [SYS_openat] = { Atfd, Ppath, PASS_TWO, Flagsandmodename },
849: [SYS_readlinkat] = { Atfd, Ppath, Pptr, Psize },
850: [SYS_renameat] = { Atfd, Ppath, Atfd, Ppath },
1.98 guenther 851: [SYS_symlinkat] = { Ppath, Atfd, Ppath },
1.92 guenther 852: [SYS_unlinkat] = { Atfd, Ppath, Atflagsname },
853: [SYS___set_tcb] = { Pptr },
854: };
855:
1.51 otto 856:
1.12 espie 857: static void
1.93 jsg 858: ktrsyscall(struct ktr_syscall *ktr, size_t ktrlen)
1.1 deraadt 859: {
1.92 guenther 860: register_t *ap;
861: int narg;
862: char sep;
863:
1.93 jsg 864: if (ktr->ktr_argsize > ktrlen)
865: errx(1, "syscall argument length %d > ktr header length %zu",
866: ktr->ktr_argsize, ktrlen);
867:
1.52 otto 868: narg = ktr->ktr_argsize / sizeof(register_t);
869: sep = '\0';
1.1 deraadt 870:
1.122 guenther 871: if (ktr->ktr_code >= SYS_MAXSYSCALL || ktr->ktr_code < 0)
1.1 deraadt 872: (void)printf("[%d]", ktr->ktr_code);
873: else
1.122 guenther 874: (void)printf("%s", syscallnames[ktr->ktr_code]);
1.1 deraadt 875: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 876: (void)putchar('(');
1.52 otto 877:
1.122 guenther 878: if (ktr->ktr_code == SYS_sysctl && fancy) {
1.62 otto 879: const char *s;
1.94 guenther 880: int n, i, *top;
1.52 otto 881:
882: n = ap[1];
883: if (n > CTL_MAXNAME)
884: n = CTL_MAXNAME;
1.93 jsg 885: if (n < 0)
886: errx(1, "invalid sysctl length %d", n);
1.94 guenther 887: if (n > 0) {
888: top = (int *)(ap + 6);
889: printf("%d", top[0]);
890: for (i = 1; i < n; i++)
891: printf(".%d", top[i]);
892: if ((s = kresolvsysctl(0, top)) != NULL) {
893: printf("<%s", s);
894: for (i = 1; i < n; i++) {
895: if ((s = kresolvsysctl(i, top)) != NULL)
896: printf(".%s", s);
897: else
898: printf(".%d", top[i]);
899: }
900: putchar('>');
901: }
1.1 deraadt 902: }
1.52 otto 903:
904: sep = ',';
905: ap += 2;
906: narg -= 2;
1.92 guenther 907: } else if (ktr->ktr_code < nitems(scargs)) {
908: const formatter *fmts = scargs[ktr->ktr_code];
909: int fmt;
1.52 otto 910:
1.92 guenther 911: while (narg && (fmt = *fmts) != 0) {
912: if (sep)
913: putchar(sep);
914: sep = ',';
915: if (!fancy && !FMT_IS_NONFANCY(fmt))
916: fmt = Pnonfancy;
917: if (fmt > 0)
918: formatters[fmt]((int)*ap);
919: else if (long_formatters[-fmt](*ap))
920: sep = '\0';
921: fmts++;
922: ap++;
923: narg--;
924: }
1.52 otto 925: }
926:
1.93 jsg 927: while (narg > 0) {
1.52 otto 928: if (sep)
929: putchar(sep);
930: if (decimal)
931: (void)printf("%ld", (long)*ap);
932: else
933: (void)printf("%#lx", (long)*ap);
934: sep = ',';
935: ap++;
936: narg--;
1.1 deraadt 937: }
1.27 mickey 938: (void)printf(")\n");
1.62 otto 939: }
940:
941: static struct ctlname topname[] = CTL_NAMES;
942: static struct ctlname kernname[] = CTL_KERN_NAMES;
943: static struct ctlname vmname[] = CTL_VM_NAMES;
944: static struct ctlname fsname[] = CTL_FS_NAMES;
945: static struct ctlname netname[] = CTL_NET_NAMES;
946: static struct ctlname hwname[] = CTL_HW_NAMES;
947: static struct ctlname debugname[CTL_DEBUG_MAXID];
948: static struct ctlname kernmallocname[] = CTL_KERN_MALLOC_NAMES;
949: static struct ctlname forkstatname[] = CTL_KERN_FORKSTAT_NAMES;
950: static struct ctlname nchstatsname[] = CTL_KERN_NCHSTATS_NAMES;
1.88 guenther 951: static struct ctlname kernprocname[] = {
1.64 guenther 952: { NULL },
953: { "all" },
954: { "pid" },
955: { "pgrp" },
956: { "session" },
957: { "tty" },
958: { "uid" },
959: { "ruid" },
1.77 guenther 960: { "kthread" },
1.64 guenther 961: };
1.62 otto 962: static struct ctlname ttysname[] = CTL_KERN_TTY_NAMES;
963: static struct ctlname semname[] = CTL_KERN_SEMINFO_NAMES;
964: static struct ctlname shmname[] = CTL_KERN_SHMINFO_NAMES;
965: static struct ctlname watchdogname[] = CTL_KERN_WATCHDOG_NAMES;
966: static struct ctlname tcname[] = CTL_KERN_TIMECOUNTER_NAMES;
967: #ifdef CTL_MACHDEP_NAMES
968: static struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
969: #endif
970: static struct ctlname ddbname[] = CTL_DDB_NAMES;
971:
972: #ifndef nitems
973: #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
974: #endif
975:
976: #define SETNAME(name) do { names = (name); limit = nitems(name); } while (0)
977:
978: static const char *
1.94 guenther 979: kresolvsysctl(int depth, const int *top)
1.62 otto 980: {
981: struct ctlname *names;
982: size_t limit;
1.94 guenther 983: int idx = top[depth];
1.62 otto 984:
985: names = NULL;
986:
987: switch (depth) {
988: case 0:
989: SETNAME(topname);
990: break;
991: case 1:
992: switch (top[0]) {
993: case CTL_KERN:
994: SETNAME(kernname);
995: break;
996: case CTL_VM:
997: SETNAME(vmname);
998: break;
999: case CTL_FS:
1000: SETNAME(fsname);
1001: break;
1002: case CTL_NET:
1003: SETNAME(netname);
1004: break;
1005: case CTL_DEBUG:
1006: SETNAME(debugname);
1007: break;
1008: case CTL_HW:
1009: SETNAME(hwname);
1010: break;
1011: #ifdef CTL_MACHDEP_NAMES
1012: case CTL_MACHDEP:
1013: SETNAME(machdepname);
1014: break;
1015: #endif
1016: case CTL_DDB:
1017: SETNAME(ddbname);
1018: break;
1019: }
1020: break;
1021: case 2:
1022: switch (top[0]) {
1023: case CTL_KERN:
1024: switch (top[1]) {
1025: case KERN_MALLOCSTATS:
1026: SETNAME(kernmallocname);
1027: break;
1028: case KERN_FORKSTAT:
1029: SETNAME(forkstatname);
1030: break;
1031: case KERN_NCHSTATS:
1032: SETNAME(nchstatsname);
1033: break;
1034: case KERN_TTY:
1035: SETNAME(ttysname);
1036: break;
1037: case KERN_SEMINFO:
1038: SETNAME(semname);
1039: break;
1040: case KERN_SHMINFO:
1041: SETNAME(shmname);
1042: break;
1043: case KERN_WATCHDOG:
1044: SETNAME(watchdogname);
1045: break;
1.64 guenther 1046: case KERN_PROC:
1047: idx++; /* zero is valid at this level */
1048: SETNAME(kernprocname);
1049: break;
1.62 otto 1050: case KERN_TIMECOUNTER:
1051: SETNAME(tcname);
1052: break;
1053: }
1054: }
1055: break;
1056: }
1057: if (names != NULL && idx > 0 && idx < limit)
1058: return (names[idx].ctl_name);
1059: return (NULL);
1.1 deraadt 1060: }
1061:
1.12 espie 1062: static void
1.103 guenther 1063: ktrsysret(struct ktr_sysret *ktr, size_t ktrlen)
1.1 deraadt 1064: {
1.103 guenther 1065: register_t ret = 0;
1066: long long retll;
1.12 espie 1067: int error = ktr->ktr_error;
1068: int code = ktr->ktr_code;
1.1 deraadt 1069:
1.103 guenther 1070: if (ktrlen < sizeof(*ktr))
1071: errx(1, "sysret length %zu < ktr header length %zu",
1072: ktrlen, sizeof(*ktr));
1073: ktrlen -= sizeof(*ktr);
1074: if (error == 0) {
1075: if (ktrlen == sizeof(ret)) {
1076: memcpy(&ret, ktr+1, sizeof(ret));
1077: retll = ret;
1078: } else if (ktrlen == sizeof(retll))
1079: memcpy(&retll, ktr+1, sizeof(retll));
1080: else
1081: errx(1, "sysret bogus length %zu", ktrlen);
1082: }
1083:
1.122 guenther 1084: if (code >= SYS_MAXSYSCALL || code < 0)
1.1 deraadt 1085: (void)printf("[%d] ", code);
1.122 guenther 1086: else
1087: (void)printf("%s ", syscallnames[code]);
1.1 deraadt 1088:
1.127 guenther 1089: doerr:
1.1 deraadt 1090: if (error == 0) {
1091: if (fancy) {
1.122 guenther 1092: switch (code) {
1.103 guenther 1093: case SYS_lseek:
1094: (void)printf("%lld", retll);
1095: if (retll < 0 || retll > 9)
1096: (void)printf("/%#llx", retll);
1097: break;
1.64 guenther 1098: case SYS_sigprocmask:
1.73 guenther 1099: case SYS_sigpending:
1.64 guenther 1100: sigset(ret);
1101: break;
1102: case SYS___thrsigdivert:
1103: signame(ret);
1.94 guenther 1104: break;
1105: case SYS_getuid:
1106: case SYS_geteuid:
1107: uidname(ret);
1108: break;
1109: case SYS_getgid:
1110: case SYS_getegid:
1111: gidname(ret);
1.64 guenther 1112: break;
1.127 guenther 1113: /* syscalls that return errno values */
1114: case SYS_getlogin_r:
1115: case SYS___thrsleep:
1.135 guenther 1116: case SYS_futex:
1.127 guenther 1117: if ((error = ret) != 0)
1118: goto doerr;
1119: /* FALLTHROUGH */
1.64 guenther 1120: default:
1121: (void)printf("%ld", (long)ret);
1122: if (ret < 0 || ret > 9)
1123: (void)printf("/%#lx", (long)ret);
1124: }
1.1 deraadt 1125: } else {
1126: if (decimal)
1.103 guenther 1127: (void)printf("%lld", retll);
1.1 deraadt 1128: else
1.103 guenther 1129: (void)printf("%#llx", retll);
1.1 deraadt 1130: }
1131: } else if (error == ERESTART)
1132: (void)printf("RESTART");
1133: else if (error == EJUSTRETURN)
1134: (void)printf("JUSTRETURN");
1135: else {
1.127 guenther 1136: (void)printf("-1 errno %d", error);
1.1 deraadt 1137: if (fancy)
1.127 guenther 1138: (void)printf(" %s", strerror(error));
1.1 deraadt 1139: }
1140: (void)putchar('\n');
1141: }
1142:
1.12 espie 1143: static void
1.37 tedu 1144: ktrnamei(const char *cp, size_t len)
1.1 deraadt 1145: {
1.126 guenther 1146: showbufc(basecol, (unsigned char *)cp, len, VIS_DQ | VIS_TAB | VIS_NL);
1.1 deraadt 1147: }
1148:
1.111 guenther 1149: void
1.126 guenther 1150: showbufc(int col, unsigned char *dp, size_t datalen, int flags)
1.106 guenther 1151: {
1.126 guenther 1152: int width;
1153: unsigned char visbuf[5], *cp;
1.106 guenther 1154:
1.126 guenther 1155: flags |= VIS_CSTYLE;
1.106 guenther 1156: putchar('"');
1.111 guenther 1157: col++;
1.106 guenther 1158: for (; datalen > 0; datalen--, dp++) {
1.126 guenther 1159: (void)vis(visbuf, *dp, flags, *(dp+1));
1.106 guenther 1160: cp = visbuf;
1161:
1162: /*
1163: * Keep track of printables and
1164: * space chars (like fold(1)).
1165: */
1166: if (col == 0) {
1167: (void)putchar('\t');
1168: col = 8;
1169: }
1170: switch (*cp) {
1171: case '\n':
1172: col = 0;
1173: (void)putchar('\n');
1174: continue;
1175: case '\t':
1176: width = 8 - (col&07);
1177: break;
1178: default:
1179: width = strlen(cp);
1180: }
1181: if (col + width > (screenwidth-2)) {
1182: (void)printf("\\\n\t");
1183: col = 8;
1184: }
1185: col += width;
1186: do {
1187: (void)putchar(*cp++);
1188: } while (*cp);
1189: }
1190: if (col == 0)
1191: (void)printf(" ");
1192: (void)printf("\"\n");
1193: }
1194:
1195: static void
1.81 miod 1196: showbuf(unsigned char *dp, size_t datalen)
1.1 deraadt 1197: {
1.37 tedu 1198: int i, j;
1.126 guenther 1199: int col = 0, bpl;
1200: unsigned char c;
1.1 deraadt 1201:
1.31 tedu 1202: if (iohex == 1) {
1203: putchar('\t');
1204: col = 8;
1205: for (i = 0; i < datalen; i++) {
1.35 tedu 1206: printf("%02x", dp[i]);
1.31 tedu 1207: col += 3;
1208: if (i < datalen - 1) {
1209: if (col + 3 > screenwidth) {
1210: printf("\n\t");
1211: col = 8;
1212: } else
1213: putchar(' ');
1214: }
1215: }
1216: putchar('\n');
1217: return;
1218: }
1219: if (iohex == 2) {
1220: bpl = (screenwidth - 13)/4;
1221: if (bpl <= 0)
1222: bpl = 1;
1223: for (i = 0; i < datalen; i += bpl) {
1224: printf(" %04x: ", i);
1225: for (j = 0; j < bpl; j++) {
1226: if (i+j >= datalen)
1227: printf(" ");
1228: else
1.35 tedu 1229: printf("%02x ", dp[i+j]);
1.31 tedu 1230: }
1231: putchar(' ');
1232: for (j = 0; j < bpl; j++) {
1233: if (i+j >= datalen)
1234: break;
1235: c = dp[i+j];
1236: if (!isprint(c))
1237: c = '.';
1238: putchar(c);
1239: }
1240: putchar('\n');
1241: }
1242: return;
1243: }
1.111 guenther 1244:
1245: (void)printf(" ");
1.126 guenther 1246: showbufc(7, dp, datalen, 0);
1.1 deraadt 1247: }
1248:
1.12 espie 1249: static void
1.81 miod 1250: ktrgenio(struct ktr_genio *ktr, size_t len)
1251: {
1252: unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
1.93 jsg 1253: size_t datalen;
1254:
1255: if (len < sizeof(struct ktr_genio))
1256: errx(1, "invalid ktr genio length %zu", len);
1257:
1258: datalen = len - sizeof(struct ktr_genio);
1.81 miod 1259:
1260: printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
1261: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
1262: if (maxdata == 0)
1263: return;
1264: if (datalen > maxdata)
1265: datalen = maxdata;
1266: if (iohex && !datalen)
1267: return;
1268: showbuf(dp, datalen);
1269: }
1270:
1271: static void
1.17 deraadt 1272: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 1273: {
1.93 jsg 1274: signame(psig->signo);
1.96 bluhm 1275: printf(" ");
1.1 deraadt 1276: if (psig->action == SIG_DFL)
1.63 deraadt 1277: (void)printf("SIG_DFL");
1.64 guenther 1278: else {
1279: (void)printf("caught handler=0x%lx mask=",
1280: (u_long)psig->action);
1281: sigset(psig->mask);
1282: }
1.63 deraadt 1283: if (psig->code) {
1284: printf(" code ");
1285: if (fancy) {
1286: switch (psig->signo) {
1287: case SIGILL:
1288: sigill_name(psig->code);
1289: break;
1290: case SIGTRAP:
1291: sigtrap_name(psig->code);
1292: break;
1293: case SIGEMT:
1294: sigemt_name(psig->code);
1295: break;
1296: case SIGFPE:
1297: sigfpe_name(psig->code);
1298: break;
1299: case SIGBUS:
1300: sigbus_name(psig->code);
1301: break;
1302: case SIGSEGV:
1303: sigsegv_name(psig->code);
1304: break;
1305: case SIGCHLD:
1306: sigchld_name(psig->code);
1307: break;
1308: }
1309: }
1310: printf("<%d>", psig->code);
1311: }
1312:
1.14 deraadt 1313: switch (psig->signo) {
1314: case SIGSEGV:
1315: case SIGILL:
1316: case SIGBUS:
1317: case SIGFPE:
1318: printf(" addr=%p trapno=%d", psig->si.si_addr,
1319: psig->si.si_trapno);
1320: break;
1321: default:
1322: break;
1323: }
1324: printf("\n");
1.1 deraadt 1325: }
1326:
1.64 guenther 1327: static void
1.81 miod 1328: ktruser(struct ktr_user *usr, size_t len)
1329: {
1.93 jsg 1330: if (len < sizeof(struct ktr_user))
1331: errx(1, "invalid ktr user length %zu", len);
1.81 miod 1332: len -= sizeof(struct ktr_user);
1333: printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
1334: printf(" %zu bytes\n", len);
1335: showbuf((unsigned char *)(usr + 1), len);
1.106 guenther 1336: }
1337:
1338: static void
1339: ktrexec(const char *ptr, size_t len)
1340: {
1.111 guenther 1341: int i, col;
1.106 guenther 1342: size_t l;
1343:
1344: putchar('\n');
1345: i = 0;
1346: while (len > 0) {
1347: l = strnlen(ptr, len);
1.111 guenther 1348: col = printf("\t[%d] = ", i++);
1349: col += 7; /* tab expands from 1 to 8 columns */
1.126 guenther 1350: showbufc(col, (unsigned char *)ptr, l, VIS_DQ|VIS_TAB|VIS_NL);
1.106 guenther 1351: if (l == len) {
1352: printf("\tunterminated argument\n");
1353: break;
1354: }
1355: len -= l + 1;
1356: ptr += l + 1;
1357: }
1.117 deraadt 1358: }
1359:
1360: static void
1361: ktrpledge(struct ktr_pledge *pledge, size_t len)
1362: {
1.118 deraadt 1363: char *name = "";
1.117 deraadt 1364: int i;
1365:
1366: if (len < sizeof(struct ktr_pledge))
1367: errx(1, "invalid ktr pledge length %zu", len);
1368:
1.122 guenther 1369: if (pledge->syscall >= SYS_MAXSYSCALL || pledge->syscall < 0)
1.117 deraadt 1370: (void)printf("[%d]", pledge->syscall);
1371: else
1.122 guenther 1372: (void)printf("%s", syscallnames[pledge->syscall]);
1.117 deraadt 1373: printf(", ");
1.118 deraadt 1374: for (i = 0; pledge->code && pledgenames[i].bits != 0; i++) {
1.117 deraadt 1375: if (pledgenames[i].bits & pledge->code) {
1.118 deraadt 1376: name = pledgenames[i].name;
1.117 deraadt 1377: break;
1378: }
1379: }
1.118 deraadt 1380: printf("\"%s\"", name);
1.117 deraadt 1381: (void)printf(", errno %d", pledge->error);
1382: if (fancy)
1383: (void)printf(" %s", strerror(pledge->error));
1384: printf("\n");
1.81 miod 1385: }
1386:
1387: static void
1.17 deraadt 1388: usage(void)
1.1 deraadt 1389: {
1390:
1.19 mickey 1391: extern char *__progname;
1392: fprintf(stderr, "usage: %s "
1.138 ! schwarze 1393: "[-dHlnRTXx] [-f file] [-m maxdata] [-p pid] [-t trstr]\n",
! 1394: __progname);
1.1 deraadt 1395: exit(1);
1396: }
1397:
1.61 matthew 1398:
1.92 guenther 1399: /*
1400: * FORMATTERS
1401: */
1402:
1403: static void
1404: ioctldecode(int cmd)
1405: {
1406: char dirbuf[4], *dir = dirbuf;
1407: const char *cp;
1408:
1409: if ((cp = ioctlname((unsigned)cmd)) != NULL) {
1410: (void)printf("%s", cp);
1411: return;
1412: }
1413:
1414: if (cmd & IOC_IN)
1415: *dir++ = 'W';
1416: if (cmd & IOC_OUT)
1417: *dir++ = 'R';
1418: *dir = '\0';
1419:
1.109 zhuk 1420: printf("_IO%s('%c',%d",
1.92 guenther 1421: dirbuf, (int)((cmd >> 8) & 0xff), cmd & 0xff);
1422: if ((cmd & IOC_VOID) == 0)
1423: printf(decimal ? ",%u)" : ",%#x)", (cmd >> 16) & 0xff);
1424: else
1425: printf(")");
1426: }
1427:
1428: static void
1429: ptracedecode(int request)
1430: {
1431: if (request >= 0 && request < nitems(ptrace_ops))
1432: (void)printf("%s", ptrace_ops[request]);
1433: else switch(request) {
1434: #ifdef PT_GETFPREGS
1435: case PT_GETFPREGS:
1436: (void)printf("PT_GETFPREGS");
1437: break;
1438: #endif
1439: case PT_GETREGS:
1440: (void)printf("PT_GETREGS");
1441: break;
1442: #ifdef PT_GETXMMREGS
1443: case PT_GETXMMREGS:
1444: (void)printf("PT_GETXMMREGS");
1445: break;
1446: #endif
1447: #ifdef PT_SETFPREGS
1448: case PT_SETFPREGS:
1449: (void)printf("PT_SETFPREGS");
1450: break;
1451: #endif
1452: case PT_SETREGS:
1453: (void)printf("PT_SETREGS");
1454: break;
1455: #ifdef PT_SETXMMREGS
1456: case PT_SETXMMREGS:
1457: (void)printf("PT_SETXMMREGS");
1458: break;
1459: #endif
1460: #ifdef PT_STEP
1461: case PT_STEP:
1462: (void)printf("PT_STEP");
1463: break;
1464: #endif
1465: #ifdef PT_WCOOKIE
1466: case PT_WCOOKIE:
1467: (void)printf("PT_WCOOKIE");
1468: break;
1469: #endif
1470: default:
1471: pdecint(request);
1472: }
1473: }
1474:
1475:
1.61 matthew 1476: static void
1477: atfd(int fd)
1478: {
1479: if (fd == AT_FDCWD)
1480: (void)printf("AT_FDCWD");
1481: else
1.92 guenther 1482: pdecint(fd);
1.77 guenther 1483: }
1484:
1485: static void
1486: polltimeout(int timeout)
1487: {
1488: if (timeout == INFTIM)
1489: (void)printf("INFTIM");
1490: else
1.92 guenther 1491: pdecint(timeout);
1.82 guenther 1492: }
1493:
1494: static void
1495: wait4pid(int pid)
1496: {
1497: if (pid == WAIT_ANY)
1498: (void)printf("WAIT_ANY");
1499: else if (pid == WAIT_MYPGRP)
1500: (void)printf("WAIT_MYPGRP");
1501: else
1.92 guenther 1502: pdecint(pid); /* ppgid */
1.1 deraadt 1503: }
1.83 guenther 1504:
1505: static void
1506: signame(int sig)
1507: {
1508: if (sig > 0 && sig < NSIG)
1509: (void)printf("SIG%s", sys_signame[sig]);
1510: else
1511: (void)printf("SIG %d", sig);
1512: }
1513:
1.84 guenther 1514: void
1.83 guenther 1515: sigset(int ss)
1516: {
1517: int or = 0;
1518: int cnt = 0;
1519: int i;
1520:
1521: for (i = 1; i < NSIG; i++)
1522: if (sigismember(&ss, i))
1523: cnt++;
1524: if (cnt > (NSIG-1)/2) {
1525: ss = ~ss;
1526: putchar('~');
1527: }
1528:
1529: if (ss == 0) {
1530: (void)printf("0<>");
1531: return;
1532: }
1533:
1534: printf("%#x<", ss);
1535: for (i = 1; i < NSIG; i++)
1536: if (sigismember(&ss, i)) {
1537: if (or) putchar('|'); else or=1;
1538: signame(i);
1539: }
1540: printf(">");
1541: }
1542:
1543: static void
1544: semctlname(int cmd)
1545: {
1546: switch (cmd) {
1547: case GETNCNT:
1548: (void)printf("GETNCNT");
1549: break;
1550: case GETPID:
1551: (void)printf("GETPID");
1552: break;
1553: case GETVAL:
1554: (void)printf("GETVAL");
1555: break;
1556: case GETALL:
1557: (void)printf("GETALL");
1558: break;
1559: case GETZCNT:
1560: (void)printf("GETZCNT");
1561: break;
1562: case SETVAL:
1563: (void)printf("SETVAL");
1564: break;
1565: case SETALL:
1566: (void)printf("SETALL");
1567: break;
1568: case IPC_RMID:
1569: (void)printf("IPC_RMID");
1570: break;
1571: case IPC_SET:
1572: (void)printf("IPC_SET");
1573: break;
1574: case IPC_STAT:
1575: (void)printf("IPC_STAT");
1576: break;
1577: default: /* Should not reach */
1.92 guenther 1578: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1579: }
1580: }
1581:
1582: static void
1.88 guenther 1583: shmctlname(int cmd)
1584: {
1.83 guenther 1585: switch (cmd) {
1586: case IPC_RMID:
1587: (void)printf("IPC_RMID");
1588: break;
1589: case IPC_SET:
1590: (void)printf("IPC_SET");
1591: break;
1592: case IPC_STAT:
1593: (void)printf("IPC_STAT");
1594: break;
1595: default: /* Should not reach */
1.92 guenther 1596: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1597: }
1598: }
1599:
1600:
1601: static void
1.88 guenther 1602: semgetname(int flag)
1603: {
1.83 guenther 1604: int or = 0;
1605: if_print_or(flag, IPC_CREAT, or);
1606: if_print_or(flag, IPC_EXCL, or);
1607: if_print_or(flag, SEM_R, or);
1608: if_print_or(flag, SEM_A, or);
1609: if_print_or(flag, (SEM_R>>3), or);
1610: if_print_or(flag, (SEM_A>>3), or);
1611: if_print_or(flag, (SEM_R>>6), or);
1612: if_print_or(flag, (SEM_A>>6), or);
1.92 guenther 1613:
1614: if (flag & ~(IPC_CREAT|IPC_EXCL|SEM_R|SEM_A|((SEM_R|SEM_A)>>3)|
1615: ((SEM_R|SEM_A)>>6)))
1616: printf("<invalid=%#x>", flag);
1.83 guenther 1617: }
1618:
1619:
1620: /*
1.92 guenther 1621: * Only used by SYS_open and SYS_openat. Unless O_CREAT is set in flags, the
1.83 guenther 1622: * mode argument is unused (and often bogus and misleading).
1623: */
1624: static void
1.92 guenther 1625: flagsandmodename(int mode)
1.88 guenther 1626: {
1.92 guenther 1627: openflagsname(arg1);
1628: if ((arg1 & O_CREAT) == O_CREAT) {
1.83 guenther 1629: (void)putchar(',');
1.92 guenther 1630: modename(mode);
1631: } else if (!fancy)
1632: (void)printf(",<unused>%#o", mode);
1.83 guenther 1633: }
1634:
1635: static void
1636: clockname(int clockid)
1637: {
1638: clocktypename(__CLOCK_TYPE(clockid));
1639: if (__CLOCK_PTID(clockid) != 0)
1640: printf("(%d)", __CLOCK_PTID(clockid));
1641: }
1642:
1643: /*
1644: * [g|s]etsockopt's level argument can either be SOL_SOCKET or a value
1.100 guenther 1645: * referring to a line in /etc/protocols.
1.83 guenther 1646: */
1647: static void
1.100 guenther 1648: sockoptlevelname(int optname)
1.83 guenther 1649: {
1.100 guenther 1650: struct protoent *pe;
1651:
1652: if (arg1 == SOL_SOCKET) {
1653: (void)printf("SOL_SOCKET,");
1654: sockoptname(optname);
1655: } else {
1656: pe = getprotobynumber(arg1);
1657: (void)printf("%u<%s>,%d", arg1,
1658: pe != NULL ? pe->p_name : "unknown", optname);
1659: }
1.83 guenther 1660: }
1661:
1.88 guenther 1662: static void
1663: ktraceopname(int ops)
1664: {
1665: int invalid = 0;
1666:
1667: printf("%#x<", ops);
1668: switch (KTROP(ops)) {
1669: case KTROP_SET:
1670: printf("KTROP_SET");
1671: break;
1672: case KTROP_CLEAR:
1673: printf("KTROP_CLEAR");
1674: break;
1675: case KTROP_CLEARFILE:
1676: printf("KTROP_CLEARFILE");
1677: break;
1678: default:
1679: printf("KTROP(%d)", KTROP(ops));
1680: invalid = 1;
1681: break;
1682: }
1.92 guenther 1683: if (ops & KTRFLAG_DESCEND) printf("|KTRFLAG_DESCEND");
1.88 guenther 1684: printf(">");
1685: if (invalid || (ops & ~(KTROP((unsigned)-1) | KTRFLAG_DESCEND)))
1.92 guenther 1686: (void)printf("<invalid>%d", ops);
1.88 guenther 1687: }
![[BACK]](/icons/back.gif){kind=icon}
Return to kdump.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / kdump