Annotation of src/usr.bin/kdump/kdump.c, Revision 1.147
1.147 ! deraadt 1: /* $OpenBSD: kdump.c,v 1.146 2022/02/22 03:31:50 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:
1.147 ! deraadt 32: #include <sys/param.h> /* MAXCOMLEN */
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>
1.145 guenther 65: #include <stddef.h>
66: #include <stdint.h>
1.1 deraadt 67: #include <stdio.h>
68: #include <stdlib.h>
69: #include <string.h>
70: #include <unistd.h>
71: #include <vis.h>
72:
73: #include "ktrace.h"
1.22 deraadt 74: #include "kdump.h"
1.51 otto 75: #include "kdump_subr.h"
1.12 espie 76: #include "extern.h"
1.146 deraadt 77:
78: #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
1.1 deraadt 79:
1.141 cheloha 80: enum {
81: TIMESTAMP_NONE,
82: TIMESTAMP_ABSOLUTE,
83: TIMESTAMP_RELATIVE,
84: TIMESTAMP_ELAPSED
85: } timestamp = TIMESTAMP_NONE;
86:
87: int decimal, iohex, fancy = 1, maxdata = INT_MAX;
1.111 guenther 88: int needtid, tail, basecol;
1.1 deraadt 89: char *tracefile = DEF_TRACEFILE;
90: struct ktr_header ktr_header;
1.85 guenther 91: pid_t pid_opt = -1;
1.1 deraadt 92:
93: #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
94:
95: #include <sys/syscall.h>
96:
97: #define KTRACE
1.19 mickey 98: #define PTRACE
1.7 deraadt 99: #define NFSCLIENT
100: #define NFSSERVER
101: #define SYSVSEM
102: #define SYSVMSG
103: #define SYSVSHM
1.110 guenther 104: #define ACCOUNTING
1.25 mickey 105: #include <kern/syscalls.c>
1.1 deraadt 106: #undef KTRACE
1.19 mickey 107: #undef PTRACE
1.7 deraadt 108: #undef NFSCLIENT
109: #undef NFSSERVER
110: #undef SYSVSEM
111: #undef SYSVMSG
112: #undef SYSVSHM
1.110 guenther 113: #undef ACCOUNTING
1.1 deraadt 114:
115:
116: static char *ptrace_ops[] = {
117: "PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
118: "PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
1.15 art 119: "PT_KILL", "PT_ATTACH", "PT_DETACH", "PT_IO",
1.64 guenther 120: "PT_SET_EVENT_MASK", "PT_GET_EVENT_MASK", "PT_GET_PROCESS_STATE",
1.71 guenther 121: "PT_GET_THREAD_FIRST", "PT_GET_THREAD_NEXT",
1.1 deraadt 122: };
123:
1.37 tedu 124: static int fread_tail(void *, size_t, size_t);
1.13 millert 125: static void dumpheader(struct ktr_header *);
1.37 tedu 126: static void ktrgenio(struct ktr_genio *, size_t);
127: static void ktrnamei(const char *, size_t);
1.13 millert 128: static void ktrpsig(struct ktr_psig *);
1.93 jsg 129: static void ktrsyscall(struct ktr_syscall *, size_t);
1.94 guenther 130: static const char *kresolvsysctl(int, const int *);
1.103 guenther 131: static void ktrsysret(struct ktr_sysret *, size_t);
1.81 miod 132: static void ktruser(struct ktr_user *, size_t);
1.106 guenther 133: static void ktrexec(const char*, size_t);
1.117 deraadt 134: static void ktrpledge(struct ktr_pledge *, size_t);
1.13 millert 135: static void usage(void);
1.92 guenther 136: static void ioctldecode(int);
137: static void ptracedecode(int);
1.61 matthew 138: static void atfd(int);
1.77 guenther 139: static void polltimeout(int);
1.82 guenther 140: static void wait4pid(int);
1.83 guenther 141: static void signame(int);
142: static void semctlname(int);
143: static void shmctlname(int);
144: static void semgetname(int);
1.92 guenther 145: static void flagsandmodename(int);
1.83 guenther 146: static void clockname(int);
147: static void sockoptlevelname(int);
1.88 guenther 148: static void ktraceopname(int);
1.12 espie 149:
1.102 deraadt 150: static int screenwidth;
151:
1.1 deraadt 152: int
1.17 deraadt 153: main(int argc, char *argv[])
1.1 deraadt 154: {
1.37 tedu 155: int ch, silent;
156: size_t ktrlen, size;
1.17 deraadt 157: int trpoints = ALL_POINTS;
1.101 deraadt 158: const char *errstr;
1.12 espie 159: void *m;
1.1 deraadt 160:
1.102 deraadt 161: if (screenwidth == 0) {
162: struct winsize ws;
163:
164: if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
165: ws.ws_col > 8)
166: screenwidth = ws.ws_col;
167: else
168: screenwidth = 80;
169: }
170:
1.122 guenther 171: while ((ch = getopt(argc, argv, "f:dHlm:np:RTt:xX")) != -1)
1.1 deraadt 172: switch (ch) {
173: case 'f':
174: tracefile = optarg;
175: break;
176: case 'd':
177: decimal = 1;
178: break;
1.67 mikeb 179: case 'H':
180: needtid = 1;
181: break;
1.1 deraadt 182: case 'l':
183: tail = 1;
184: break;
185: case 'm':
1.101 deraadt 186: maxdata = strtonum(optarg, 0, INT_MAX, &errstr);
187: if (errstr)
188: errx(1, "-m %s: %s", optarg, errstr);
1.1 deraadt 189: break;
190: case 'n':
191: fancy = 0;
192: break;
1.17 deraadt 193: case 'p':
1.101 deraadt 194: pid_opt = strtonum(optarg, 1, INT_MAX, &errstr);
195: if (errstr)
196: errx(1, "-p %s: %s", optarg, errstr);
1.17 deraadt 197: break;
1.128 tedu 198: case 'R': /* relative timestamp */
1.141 cheloha 199: if (timestamp == TIMESTAMP_ABSOLUTE)
200: timestamp = TIMESTAMP_ELAPSED;
201: else
202: timestamp = TIMESTAMP_RELATIVE;
1.1 deraadt 203: break;
204: case 'T':
1.141 cheloha 205: if (timestamp == TIMESTAMP_RELATIVE)
206: timestamp = TIMESTAMP_ELAPSED;
207: else
208: timestamp = TIMESTAMP_ABSOLUTE;
1.1 deraadt 209: break;
210: case 't':
1.129 guenther 211: trpoints = getpoints(optarg, DEF_POINTS);
1.1 deraadt 212: if (trpoints < 0)
213: errx(1, "unknown trace point in %s", optarg);
214: break;
1.31 tedu 215: case 'x':
216: iohex = 1;
217: break;
218: case 'X':
219: iohex = 2;
220: break;
1.1 deraadt 221: default:
222: usage();
223: }
1.5 deraadt 224: if (argc > optind)
1.1 deraadt 225: usage();
1.108 deraadt 226:
1.136 tedu 227: if (strcmp(tracefile, "-") != 0)
228: if (unveil(tracefile, "r") == -1)
1.144 beck 229: err(1, "unveil %s", tracefile);
1.140 deraadt 230: if (unveil(_PATH_PROTOCOLS, "r") == -1)
1.144 beck 231: err(1, "unveil %s", _PATH_PROTOCOLS);
1.115 deraadt 232: if (pledge("stdio rpath getpw", NULL) == -1)
1.113 deraadt 233: err(1, "pledge");
1.1 deraadt 234:
1.37 tedu 235: m = malloc(size = 1025);
1.1 deraadt 236: if (m == NULL)
1.37 tedu 237: err(1, NULL);
1.136 tedu 238: if (strcmp(tracefile, "-") != 0)
239: if (!freopen(tracefile, "r", stdin))
240: err(1, "%s", tracefile);
1.112 deraadt 241:
1.67 mikeb 242: if (fread_tail(&ktr_header, sizeof(struct ktr_header), 1) == 0 ||
243: ktr_header.ktr_type != htobe32(KTR_START))
244: errx(1, "%s: not a dump", tracefile);
1.1 deraadt 245: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
1.17 deraadt 246: silent = 0;
1.85 guenther 247: if (pid_opt != -1 && pid_opt != ktr_header.ktr_pid)
1.17 deraadt 248: silent = 1;
249: if (silent == 0 && trpoints & (1<<ktr_header.ktr_type))
1.1 deraadt 250: dumpheader(&ktr_header);
1.37 tedu 251: ktrlen = ktr_header.ktr_len;
1.1 deraadt 252: if (ktrlen > size) {
1.23 tedu 253: void *newm;
254:
1.64 guenther 255: if (ktrlen == SIZE_MAX)
256: errx(1, "data too long");
1.23 tedu 257: newm = realloc(m, ktrlen+1);
258: if (newm == NULL)
1.66 deraadt 259: err(1, "realloc");
1.23 tedu 260: m = newm;
1.1 deraadt 261: size = ktrlen;
262: }
263: if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
264: errx(1, "data too short");
1.17 deraadt 265: if (silent)
266: continue;
1.1 deraadt 267: if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
268: continue;
269: switch (ktr_header.ktr_type) {
270: case KTR_SYSCALL:
1.131 guenther 271: ktrsyscall(m, ktrlen);
1.1 deraadt 272: break;
273: case KTR_SYSRET:
1.131 guenther 274: ktrsysret(m, ktrlen);
1.1 deraadt 275: break;
276: case KTR_NAMEI:
277: ktrnamei(m, ktrlen);
278: break;
279: case KTR_GENIO:
1.131 guenther 280: ktrgenio(m, ktrlen);
1.1 deraadt 281: break;
282: case KTR_PSIG:
1.131 guenther 283: ktrpsig(m);
1.1 deraadt 284: break;
1.55 otto 285: case KTR_STRUCT:
286: ktrstruct(m, ktrlen);
287: break;
1.81 miod 288: case KTR_USER:
289: ktruser(m, ktrlen);
290: break;
1.106 guenther 291: case KTR_EXECARGS:
292: case KTR_EXECENV:
293: ktrexec(m, ktrlen);
294: break;
1.117 deraadt 295: case KTR_PLEDGE:
1.131 guenther 296: ktrpledge(m, ktrlen);
1.117 deraadt 297: break;
1.123 guenther 298: default:
299: printf("\n");
300: break;
1.1 deraadt 301: }
302: if (tail)
303: (void)fflush(stdout);
304: }
1.12 espie 305: exit(0);
1.1 deraadt 306: }
307:
1.12 espie 308: static int
1.37 tedu 309: fread_tail(void *buf, size_t size, size_t num)
1.1 deraadt 310: {
311: int i;
312:
313: while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
314: (void)sleep(1);
315: clearerr(stdin);
316: }
317: return (i);
318: }
319:
1.12 espie 320: static void
1.17 deraadt 321: dumpheader(struct ktr_header *kth)
1.1 deraadt 322: {
1.67 mikeb 323: static struct timespec prevtime;
1.1 deraadt 324: char unknown[64], *type;
1.67 mikeb 325: struct timespec temp;
1.1 deraadt 326:
327: switch (kth->ktr_type) {
328: case KTR_SYSCALL:
329: type = "CALL";
330: break;
331: case KTR_SYSRET:
332: type = "RET ";
333: break;
334: case KTR_NAMEI:
335: type = "NAMI";
336: break;
337: case KTR_GENIO:
338: type = "GIO ";
339: break;
340: case KTR_PSIG:
341: type = "PSIG";
342: break;
1.55 otto 343: case KTR_STRUCT:
344: type = "STRU";
345: break;
1.81 miod 346: case KTR_USER:
347: type = "USER";
348: break;
1.106 guenther 349: case KTR_EXECARGS:
350: type = "ARGS";
351: break;
352: case KTR_EXECENV:
353: type = "ENV ";
354: break;
1.117 deraadt 355: case KTR_PLEDGE:
356: type = "PLDG";
357: break;
1.1 deraadt 358: default:
1.123 guenther 359: /* htobe32() not guaranteed to work as case label */
360: if (kth->ktr_type == htobe32(KTR_START)) {
361: type = "STRT";
362: break;
363: }
1.122 guenther 364: (void)snprintf(unknown, sizeof unknown, "UNKNOWN(%u)",
1.17 deraadt 365: kth->ktr_type);
1.1 deraadt 366: type = unknown;
367: }
368:
1.111 guenther 369: basecol = printf("%6ld", (long)kth->ktr_pid);
1.67 mikeb 370: if (needtid)
1.111 guenther 371: basecol += printf("/%-7ld", (long)kth->ktr_tid);
372: basecol += printf(" %-8.*s ", MAXCOMLEN, kth->ktr_comm);
1.141 cheloha 373: if (timestamp != TIMESTAMP_NONE) {
374: if (timestamp == TIMESTAMP_ELAPSED) {
1.128 tedu 375: if (prevtime.tv_sec == 0)
376: prevtime = kth->ktr_time;
377: timespecsub(&kth->ktr_time, &prevtime, &temp);
1.141 cheloha 378: } else if (timestamp == TIMESTAMP_RELATIVE) {
1.67 mikeb 379: timespecsub(&kth->ktr_time, &prevtime, &temp);
1.1 deraadt 380: prevtime = kth->ktr_time;
381: } else
382: temp = kth->ktr_time;
1.111 guenther 383: basecol += printf("%lld.%06ld ", (long long)temp.tv_sec,
1.79 deraadt 384: temp.tv_nsec / 1000);
1.1 deraadt 385: }
1.111 guenther 386: basecol += printf("%s ", type);
1.1 deraadt 387: }
388:
1.92 guenther 389: /*
390: * Base Formatters
391: */
392:
393: /* some syscalls have padding that shouldn't be shown */
394: static int
395: pad(long arg)
396: {
397: /* nothing printed */
398: return (1);
399: }
400:
401: /* a formatter that just saves the argument for the next formatter */
402: int arg1;
403: static int
404: pass_two(long arg)
405: {
406: arg1 = (int)arg;
407:
408: /* nothing printed */
409: return (1);
410: }
411:
412: static int
413: pdeclong(long arg)
414: {
415: (void)printf("%ld", arg);
416: return (0);
417: }
418:
419: static int
420: pdeculong(long arg)
1.2 deraadt 421: {
1.92 guenther 422: (void)printf("%lu", arg);
423: return (0);
424: }
1.2 deraadt 425:
1.92 guenther 426: static int
427: phexlong(long arg)
428: {
429: (void)printf("%#lx", arg);
430: return (0);
431: }
1.2 deraadt 432:
1.92 guenther 433: static int
434: pnonfancy(long arg)
435: {
436: if (decimal)
437: (void)printf("%ld", arg);
1.2 deraadt 438: else
1.92 guenther 439: (void)printf("%#lx", arg);
440: return (0);
1.2 deraadt 441: }
1.1 deraadt 442:
1.52 otto 443: static void
1.92 guenther 444: pdecint(int arg)
1.52 otto 445: {
1.92 guenther 446: (void)printf("%d", arg);
1.52 otto 447: }
448:
449: static void
1.92 guenther 450: pdecuint(int arg)
1.52 otto 451: {
1.92 guenther 452: (void)printf("%u", arg);
1.52 otto 453: }
454:
455: static void
1.92 guenther 456: phexint(int arg)
1.52 otto 457: {
1.92 guenther 458: (void)printf("%#x", arg);
1.52 otto 459: }
1.92 guenther 460:
1.52 otto 461: static void
1.92 guenther 462: poctint(int arg)
463: {
464: (void)printf("%#o", arg);
465: }
466:
467:
468: #ifdef __LP64__
469:
470: /* on LP64, long long arguments are the same as long arguments */
471: #define Phexlonglong Phexlong
472: #define phexll NULL /* not actually used on LP64 */
473:
1.145 guenther 474: /* no padding before long long arguments, nor at end */
475: #define PAD64 0
476: #define END64 end_of_args
477:
1.92 guenther 478: #else /* __LP64__ */
479:
480: /* on ILP32, long long arguments are passed as two 32bit args */
481: #define Phexlonglong PASS_LONGLONG, Phexll
482:
483: static int
484: phexll(long arg2)
1.52 otto 485: {
1.92 guenther 486: long long val;
487:
488: #if _BYTE_ORDER == _LITTLE_ENDIAN
489: val = ((long long)arg2 << 32) | ((long long)arg1 & 0xffffffff);
490: #else
491: val = ((long long)arg1 << 32) | ((long long)arg2 & 0xffffffff);
492: #endif
493:
494: if (fancy || !decimal)
495: (void)printf("%#llx", val);
496: else
1.52 otto 497: (void)printf("%lld", val);
1.92 guenther 498: return (0);
1.52 otto 499: }
1.92 guenther 500:
1.145 guenther 501: /*
502: * Some ILP32 archs naturally align off_t arguments to 8byte boundaries
503: * Get the compiler to tell if this arch is one of them.
504: */
505: struct padding_test {
506: int padtest_one;
507: off_t padtest_two;
508: };
509: #define PAD64 (offsetof(struct padding_test,padtest_two) == 8)
510: #define END64 (PAD64 ? PASS_LONGLONG : end_of_args)
511:
1.92 guenther 512: #endif /* __LP64__ */
513:
514: static int (*long_formatters[])(long) = {
515: NULL,
516: pdeclong,
517: pdeculong,
518: phexlong,
519: pass_two,
520: pass_two,
521: phexll,
522: pad,
523: pnonfancy,
524: };
525:
526: static void (*formatters[])(int) = {
527: NULL,
528: pdecint,
529: phexint,
530: poctint,
531: pdecuint,
532: ioctldecode,
533: ptracedecode,
534: atfd,
535: polltimeout,
536: wait4pid,
537: signame,
538: semctlname,
539: shmctlname,
540: semgetname,
541: flagsandmodename,
542: clockname,
543: sockoptlevelname,
544: ktraceopname,
545: fcntlcmdname,
546: modename,
547: flagsname,
548: openflagsname,
549: atflagsname,
550: accessmodename,
551: mmapprotname,
552: mmapflagsname,
553: wait4optname,
554: sendrecvflagsname,
555: mountflagsname,
556: rebootoptname,
557: flockname,
558: sockoptname,
559: sockipprotoname,
560: socktypename,
561: sockflagsname,
562: sockfamilyname,
563: mlockallname,
564: shmatname,
565: whencename,
566: pathconfname,
567: rlimitname,
568: shutdownhowname,
569: prioname,
570: madvisebehavname,
571: msyncflagsname,
572: clocktypename,
573: rusagewho,
574: sigactionflagname,
575: sigprocmaskhowname,
576: minheritname,
577: quotactlname,
578: sigill_name,
579: sigtrap_name,
580: sigemt_name,
581: sigfpe_name,
582: sigbus_name,
583: sigsegv_name,
584: sigchld_name,
585: ktracefacname,
586: itimername,
587: sigset,
1.94 guenther 588: uidname,
589: gidname,
1.125 guenther 590: syslogflagname,
1.130 mpi 591: futexflagname,
1.92 guenther 592: };
593:
594: enum {
595: /* the end of the (known) arguments is recognized by the zero fill */
596: end_of_args = 0,
597:
598: /* negative are the negative of the index into long_formatters[] */
599: Pdeclong = -1,
600: Pdeculong = -2,
601: Phexlong = -3,
602: PASS_TWO = -4,
603:
604: /* the remaining long formatters still get called when non-fancy (-n option) */
605: #define FMT_IS_NONFANCY(x) ((x) <= PASS_LONGLONG)
606: PASS_LONGLONG = -5,
607: Phexll = -6,
608: PAD = -7,
609: Pnonfancy = -8,
610:
611: /* positive values are the index into formatters[] */
612: Pdecint = 1,
613: Phexint,
614: Poctint,
615: Pdecuint,
616: Ioctldecode,
617: Ptracedecode,
618: Atfd,
619: Polltimeout,
620: Wait4pid,
621: Signame,
622: Semctlname,
623: Shmctlname,
624: Semgetname,
625: Flagsandmodename,
626: Clockname,
627: Sockoptlevelname,
628: Ktraceopname,
629: Fcntlcmdname,
630: Modename,
631: Flagsname,
632: Openflagsname,
633: Atflagsname,
634: Accessmodename,
635: Mmapprotname,
636: Mmapflagsname,
637: Wait4optname,
638: Sendrecvflagsname,
639: Mountflagsname,
640: Rebootoptname,
641: Flockname,
642: Sockoptname,
643: Sockipprotoname,
644: Socktypename,
645: Sockflagsname,
646: Sockfamilyname,
647: Mlockallname,
648: Shmatname,
649: Whencename,
650: Pathconfname,
651: Rlimitname,
652: Shutdownhowname,
653: Prioname,
654: Madvisebehavname,
655: Msyncflagsname,
656: Clocktypename,
657: Rusagewho,
658: Sigactionflagname,
659: Sigprocmaskhowname,
660: Minheritname,
661: Quotactlname,
662: Sigill_name,
663: Sigtrap_name,
664: Sigemt_name,
665: Sigfpe_name,
666: Sigbus_name,
667: Sigsegv_name,
668: Sigchld_name,
669: Ktracefacname,
670: Itimername,
671: Sigset,
1.94 guenther 672: Uidname,
673: Gidname,
1.125 guenther 674: Syslogflagname,
1.130 mpi 675: Futexflagname,
1.92 guenther 676: };
677:
678: #define Pptr Phexlong
679: #define Psize Pdeculong /* size_t for small buffers */
680: #define Pbigsize Phexlong /* size_t for I/O buffers */
681: #define Pcount Pdecint /* int for a count of something */
682: #define Pfd Pdecint
683: #define Ppath Phexlong
684: #define Pdev_t Pdecint
685: #define Ppid_t Pdecint
686: #define Ppgid Pdecint /* pid or negative pgid */
687: #define Poff_t Phexlonglong
688: #define Pmsqid Pdecint
689: #define Pshmid Pdecint
690: #define Psemid Pdecint
691: #define Pkey_t Pdecint
692: #define Pucount Pdecuint
693: #define Chflagsname Phexlong /* to be added */
694: #define Sockprotoname Phexlong /* to be added */
695: #define Swapctlname Phexlong /* to be added */
696: #define Msgflgname Phexlong /* to be added */
697:
698:
699: typedef signed char formatter;
700: static const formatter scargs[][8] = {
701: [SYS_exit] = { Pdecint },
702: [SYS_read] = { Pfd, Pptr, Pbigsize },
703: [SYS_write] = { Pfd, Pptr, Pbigsize },
704: [SYS_open] = { Ppath, PASS_TWO, Flagsandmodename },
705: [SYS_close] = { Pfd },
706: [SYS_getentropy] = { Pptr, Psize },
707: [SYS___tfork] = { Pptr, Psize },
708: [SYS_link] = { Ppath, Ppath },
709: [SYS_unlink] = { Ppath },
710: [SYS_wait4] = { Wait4pid, Pptr, Wait4optname },
711: [SYS_chdir] = { Ppath },
712: [SYS_fchdir] = { Pfd },
713: [SYS_mknod] = { Ppath, Modename, Pdev_t },
714: [SYS_chmod] = { Ppath, Modename },
1.94 guenther 715: [SYS_chown] = { Ppath, Uidname, Gidname },
1.92 guenther 716: [SYS_break] = { Pptr },
717: [SYS_getrusage] = { Rusagewho, Pptr },
718: [SYS_mount] = { Pptr, Ppath, Mountflagsname, Pptr },
719: [SYS_unmount] = { Ppath, Mountflagsname },
1.94 guenther 720: [SYS_setuid] = { Uidname },
1.92 guenther 721: [SYS_ptrace] = { Ptracedecode, Ppid_t, Pptr, Pdecint },
722: [SYS_recvmsg] = { Pfd, Pptr, Sendrecvflagsname },
723: [SYS_sendmsg] = { Pfd, Pptr, Sendrecvflagsname },
724: [SYS_recvfrom] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
725: [SYS_accept] = { Pfd, Pptr, Pptr },
726: [SYS_getpeername] = { Pfd, Pptr, Pptr },
727: [SYS_getsockname] = { Pfd, Pptr, Pptr },
728: [SYS_access] = { Ppath, Accessmodename },
729: [SYS_chflags] = { Ppath, Chflagsname },
730: [SYS_fchflags] = { Pfd, Chflagsname },
731: [SYS_kill] = { Ppgid, Signame },
732: [SYS_stat] = { Ppath, Pptr },
733: [SYS_lstat] = { Ppath, Pptr },
734: [SYS_dup] = { Pfd },
735: [SYS_fstatat] = { Atfd, Ppath, Pptr, Atflagsname },
736: [SYS_profil] = { Pptr, Pbigsize, Pbigsize, Pdecuint },
737: [SYS_ktrace] = { Ppath, Ktraceopname, Ktracefacname, Ppgid },
738: [SYS_sigaction] = { Signame, Pptr, Pptr },
739: [SYS_sigprocmask] = { Sigprocmaskhowname, Sigset },
1.127 guenther 740: [SYS_getlogin_r] = { Pptr, Psize },
1.92 guenther 741: [SYS_setlogin] = { Pptr },
742: [SYS_acct] = { Ppath },
743: [SYS_fstat] = { Pfd, Pptr },
744: [SYS_ioctl] = { Pfd, Ioctldecode, Pptr },
745: [SYS_reboot] = { Rebootoptname },
746: [SYS_revoke] = { Ppath },
747: [SYS_symlink] = { Ppath, Ppath },
748: [SYS_readlink] = { Ppath, Pptr, Psize },
749: [SYS_execve] = { Ppath, Pptr, Pptr },
750: [SYS_umask] = { Modename },
751: [SYS_chroot] = { Ppath },
752: [SYS_getfsstat] = { Pptr, Pbigsize, Mountflagsname },
753: [SYS_statfs] = { Ppath, Pptr },
754: [SYS_fstatfs] = { Pfd, Pptr },
755: [SYS_fhstatfs] = { Pptr, Pptr },
756: [SYS_gettimeofday] = { Pptr, Pptr },
757: [SYS_settimeofday] = { Pptr, Pptr },
758: [SYS_setitimer] = { Itimername, Pptr, Pptr },
759: [SYS_getitimer] = { Itimername, Pptr },
760: [SYS_select] = { Pcount, Pptr, Pptr, Pptr, Pptr },
761: [SYS_kevent] = { Pfd, Pptr, Pcount, Pptr, Pcount, Pptr },
762: [SYS_munmap] = { Pptr, Pbigsize },
763: [SYS_mprotect] = { Pptr, Pbigsize, Mmapprotname },
764: [SYS_madvise] = { Pptr, Pbigsize, Madvisebehavname },
765: [SYS_utimes] = { Ppath, Pptr },
766: [SYS_futimes] = { Pfd, Pptr },
1.124 guenther 767: [SYS_kbind] = { Pptr, Psize, Phexlonglong },
1.92 guenther 768: [SYS_getgroups] = { Pcount, Pptr },
769: [SYS_setgroups] = { Pcount, Pptr },
770: [SYS_setpgid] = { Ppid_t, Ppid_t },
1.130 mpi 771: [SYS_futex] = { Pptr, Futexflagname, Pcount, Pptr, Pptr },
1.125 guenther 772: [SYS_sendsyslog] = { Pptr, Psize, Syslogflagname },
1.92 guenther 773: [SYS_utimensat] = { Atfd, Ppath, Pptr, Atflagsname },
774: [SYS_futimens] = { Pfd, Pptr },
775: [SYS_clock_gettime] = { Clockname, Pptr },
776: [SYS_clock_settime] = { Clockname, Pptr },
777: [SYS_clock_getres] = { Clockname, Pptr },
778: [SYS_dup2] = { Pfd, Pfd },
779: [SYS_nanosleep] = { Pptr, Pptr },
780: [SYS_fcntl] = { Pfd, PASS_TWO, Fcntlcmdname },
781: [SYS_accept4] = { Pfd, Pptr, Pptr, Sockflagsname },
782: [SYS___thrsleep] = { Pptr, Clockname, Pptr, Pptr, Pptr },
783: [SYS_fsync] = { Pfd },
784: [SYS_setpriority] = { Prioname, Ppid_t, Pdecint },
1.99 guenther 785: [SYS_socket] = { Sockfamilyname, Socktypename, Sockprotoname },
1.92 guenther 786: [SYS_connect] = { Pfd, Pptr, Pucount },
787: [SYS_getdents] = { Pfd, Pptr, Pbigsize },
788: [SYS_getpriority] = { Prioname, Ppid_t },
789: [SYS_pipe2] = { Pptr, Flagsname },
790: [SYS_dup3] = { Pfd, Pfd, Flagsname },
791: [SYS_sigreturn] = { Pptr },
792: [SYS_bind] = { Pfd, Pptr, Pucount },
793: [SYS_setsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pdecint },
794: [SYS_listen] = { Pfd, Pdecint },
795: [SYS_chflagsat] = { Atfd, Ppath, Chflagsname, Atflagsname },
796: [SYS_ppoll] = { Pptr, Pucount, Pptr, Pptr },
797: [SYS_pselect] = { Pcount, Pptr, Pptr, Pptr, Pptr, Pptr },
798: [SYS_sigsuspend] = { Sigset },
799: [SYS_getsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pptr },
1.120 guenther 800: [SYS_thrkill] = { Ppid_t, Signame, Pptr },
1.92 guenther 801: [SYS_readv] = { Pfd, Pptr, Pcount },
802: [SYS_writev] = { Pfd, Pptr, Pcount },
1.94 guenther 803: [SYS_fchown] = { Pfd, Uidname, Gidname },
1.92 guenther 804: [SYS_fchmod] = { Pfd, Modename },
1.94 guenther 805: [SYS_setreuid] = { Uidname, Uidname },
806: [SYS_setregid] = { Gidname, Gidname },
1.92 guenther 807: [SYS_rename] = { Ppath, Ppath },
808: [SYS_flock] = { Pfd, Flockname },
809: [SYS_mkfifo] = { Ppath, Modename },
810: [SYS_sendto] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
811: [SYS_shutdown] = { Pfd, Shutdownhowname },
1.99 guenther 812: [SYS_socketpair] = { Sockfamilyname, Socktypename, Sockprotoname, Pptr },
1.92 guenther 813: [SYS_mkdir] = { Ppath, Modename },
814: [SYS_rmdir] = { Ppath },
815: [SYS_adjtime] = { Pptr, Pptr },
1.94 guenther 816: [SYS_quotactl] = { Ppath, Quotactlname, Uidname, Pptr },
1.92 guenther 817: [SYS_nfssvc] = { Phexint, Pptr },
818: [SYS_getfh] = { Ppath, Pptr },
819: [SYS_sysarch] = { Pdecint, Pptr },
1.145 guenther 820: [SYS_pread] = { Pfd, Pptr, Pbigsize, Poff_t, END64 },
821: [SYS_pwrite] = { Pfd, Pptr, Pbigsize, Poff_t, END64 },
822: #ifdef SYS_pad_pread
823: [SYS_pad_pread] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
824: [SYS_pad_pwrite] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
825: #endif
1.94 guenther 826: [SYS_setgid] = { Gidname },
827: [SYS_setegid] = { Gidname },
828: [SYS_seteuid] = { Uidname },
1.92 guenther 829: [SYS_pathconf] = { Ppath, Pathconfname },
830: [SYS_fpathconf] = { Pfd, Pathconfname },
831: [SYS_swapctl] = { Swapctlname, Pptr, Pdecint },
832: [SYS_getrlimit] = { Rlimitname, Pptr },
833: [SYS_setrlimit] = { Rlimitname, Pptr },
1.145 guenther 834: [SYS_mmap] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, Poff_t, END64 },
835: [SYS_lseek] = { Pfd, Poff_t, Whencename, END64 },
836: [SYS_truncate] = { Ppath, Poff_t, END64 },
837: [SYS_ftruncate] = { Pfd, Poff_t, END64 },
838: #ifdef SYS_pad_mmap
839: [SYS_pad_mmap] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
840: [SYS_pad_lseek] = { Pfd, PAD, Poff_t, Whencename },
841: [SYS_pad_truncate] = { Ppath, PAD, Poff_t },
842: [SYS_pad_ftruncate] = { Pfd, PAD, Poff_t },
843: #endif
1.122 guenther 844: [SYS_sysctl] = { Pptr, Pcount, Pptr, Pptr, Pptr, Psize },
1.92 guenther 845: [SYS_mlock] = { Pptr, Pbigsize },
846: [SYS_munlock] = { Pptr, Pbigsize },
847: [SYS_getpgid] = { Ppid_t },
848: [SYS_utrace] = { Pptr, Pptr, Psize },
849: [SYS_semget] = { Pkey_t, Pcount, Semgetname },
850: [SYS_msgget] = { Pkey_t, Msgflgname },
851: [SYS_msgsnd] = { Pmsqid, Pptr, Psize, Msgflgname },
852: [SYS_msgrcv] = { Pmsqid, Pptr, Psize, Pdeclong, Msgflgname },
853: [SYS_shmat] = { Pshmid, Pptr, Shmatname },
854: [SYS_shmdt] = { Pptr },
855: [SYS_minherit] = { Pptr, Pbigsize, Minheritname },
856: [SYS_poll] = { Pptr, Pucount, Polltimeout },
1.94 guenther 857: [SYS_lchown] = { Ppath, Uidname, Gidname },
1.92 guenther 858: [SYS_getsid] = { Ppid_t },
859: [SYS_msync] = { Pptr, Pbigsize, Msyncflagsname },
860: [SYS_pipe] = { Pptr },
861: [SYS_fhopen] = { Pptr, Openflagsname },
1.145 guenther 862: [SYS_preadv] = { Pfd, Pptr, Pcount, Poff_t, END64 },
863: [SYS_pwritev] = { Pfd, Pptr, Pcount, Poff_t, END64 },
864: #ifdef SYS_pad_preadv
865: [SYS_pad_preadv] = { Pfd, Pptr, Pcount, PAD, Poff_t },
866: [SYS_pad_pwritev] = { Pfd, Pptr, Pcount, PAD, Poff_t },
867: #endif
1.92 guenther 868: [SYS_mlockall] = { Mlockallname },
869: [SYS_getresuid] = { Pptr, Pptr, Pptr },
1.94 guenther 870: [SYS_setresuid] = { Uidname, Uidname, Uidname },
1.92 guenther 871: [SYS_getresgid] = { Pptr, Pptr, Pptr },
1.94 guenther 872: [SYS_setresgid] = { Gidname, Gidname, Gidname },
1.145 guenther 873: [SYS_mquery] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, Poff_t, END64 },
874: #ifdef SYS_pad_mquery
875: [SYS_pad_mquery] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
876: #endif
1.92 guenther 877: [SYS_closefrom] = { Pfd },
878: [SYS_sigaltstack] = { Pptr, Pptr },
879: [SYS_shmget] = { Pkey_t, Pbigsize, Semgetname },
880: [SYS_semop] = { Psemid, Pptr, Psize },
881: [SYS_fhstat] = { Pptr, Pptr },
882: [SYS___semctl] = { Psemid, Pcount, Semctlname, Pptr },
883: [SYS_shmctl] = { Pshmid, Shmctlname, Pptr },
884: [SYS_msgctl] = { Pmsqid, Shmctlname, Pptr },
885: [SYS___thrwakeup] = { Pptr, Pcount },
886: [SYS___threxit] = { Pptr },
887: [SYS___thrsigdivert] = { Sigset, Pptr, Pptr },
888: [SYS___getcwd] = { Pptr, Psize },
889: [SYS_adjfreq] = { Pptr, Pptr },
890: [SYS_setrtable] = { Pdecint },
891: [SYS_faccessat] = { Atfd, Ppath, Accessmodename, Atflagsname },
892: [SYS_fchmodat] = { Atfd, Ppath, Modename, Atflagsname },
1.94 guenther 893: [SYS_fchownat] = { Atfd, Ppath, Uidname, Gidname, Atflagsname },
1.92 guenther 894: [SYS_linkat] = { Atfd, Ppath, Atfd, Ppath, Atflagsname },
895: [SYS_mkdirat] = { Atfd, Ppath, Modename },
896: [SYS_mkfifoat] = { Atfd, Ppath, Modename },
897: [SYS_mknodat] = { Atfd, Ppath, Modename, Pdev_t },
898: [SYS_openat] = { Atfd, Ppath, PASS_TWO, Flagsandmodename },
899: [SYS_readlinkat] = { Atfd, Ppath, Pptr, Psize },
900: [SYS_renameat] = { Atfd, Ppath, Atfd, Ppath },
1.98 guenther 901: [SYS_symlinkat] = { Ppath, Atfd, Ppath },
1.92 guenther 902: [SYS_unlinkat] = { Atfd, Ppath, Atflagsname },
903: [SYS___set_tcb] = { Pptr },
904: };
905:
1.51 otto 906:
1.12 espie 907: static void
1.93 jsg 908: ktrsyscall(struct ktr_syscall *ktr, size_t ktrlen)
1.1 deraadt 909: {
1.92 guenther 910: register_t *ap;
911: int narg;
912: char sep;
913:
1.93 jsg 914: if (ktr->ktr_argsize > ktrlen)
915: errx(1, "syscall argument length %d > ktr header length %zu",
916: ktr->ktr_argsize, ktrlen);
917:
1.52 otto 918: narg = ktr->ktr_argsize / sizeof(register_t);
919: sep = '\0';
1.1 deraadt 920:
1.122 guenther 921: if (ktr->ktr_code >= SYS_MAXSYSCALL || ktr->ktr_code < 0)
1.1 deraadt 922: (void)printf("[%d]", ktr->ktr_code);
923: else
1.122 guenther 924: (void)printf("%s", syscallnames[ktr->ktr_code]);
1.1 deraadt 925: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 926: (void)putchar('(');
1.52 otto 927:
1.122 guenther 928: if (ktr->ktr_code == SYS_sysctl && fancy) {
1.62 otto 929: const char *s;
1.94 guenther 930: int n, i, *top;
1.52 otto 931:
932: n = ap[1];
933: if (n > CTL_MAXNAME)
934: n = CTL_MAXNAME;
1.93 jsg 935: if (n < 0)
936: errx(1, "invalid sysctl length %d", n);
1.94 guenther 937: if (n > 0) {
938: top = (int *)(ap + 6);
939: printf("%d", top[0]);
940: for (i = 1; i < n; i++)
941: printf(".%d", top[i]);
942: if ((s = kresolvsysctl(0, top)) != NULL) {
943: printf("<%s", s);
944: for (i = 1; i < n; i++) {
945: if ((s = kresolvsysctl(i, top)) != NULL)
946: printf(".%s", s);
947: else
948: printf(".%d", top[i]);
949: }
950: putchar('>');
951: }
1.1 deraadt 952: }
1.52 otto 953:
954: sep = ',';
955: ap += 2;
956: narg -= 2;
1.92 guenther 957: } else if (ktr->ktr_code < nitems(scargs)) {
958: const formatter *fmts = scargs[ktr->ktr_code];
959: int fmt;
1.145 guenther 960: int arg = 0;
1.52 otto 961:
1.145 guenther 962: while (arg < narg && (fmt = *fmts) != 0) {
963: if (PAD64 && fmt == PASS_LONGLONG && (arg & 1))
964: goto skip;
1.92 guenther 965: if (sep)
966: putchar(sep);
967: sep = ',';
968: if (!fancy && !FMT_IS_NONFANCY(fmt))
969: fmt = Pnonfancy;
970: if (fmt > 0)
971: formatters[fmt]((int)*ap);
972: else if (long_formatters[-fmt](*ap))
973: sep = '\0';
974: fmts++;
1.145 guenther 975: skip:
1.92 guenther 976: ap++;
1.145 guenther 977: arg++;
1.92 guenther 978: }
1.145 guenther 979: narg -= arg;
1.52 otto 980: }
981:
1.93 jsg 982: while (narg > 0) {
1.52 otto 983: if (sep)
984: putchar(sep);
985: if (decimal)
986: (void)printf("%ld", (long)*ap);
987: else
988: (void)printf("%#lx", (long)*ap);
989: sep = ',';
990: ap++;
991: narg--;
1.1 deraadt 992: }
1.27 mickey 993: (void)printf(")\n");
1.62 otto 994: }
995:
996: static struct ctlname topname[] = CTL_NAMES;
997: static struct ctlname kernname[] = CTL_KERN_NAMES;
998: static struct ctlname vmname[] = CTL_VM_NAMES;
999: static struct ctlname fsname[] = CTL_FS_NAMES;
1000: static struct ctlname netname[] = CTL_NET_NAMES;
1001: static struct ctlname hwname[] = CTL_HW_NAMES;
1002: static struct ctlname debugname[CTL_DEBUG_MAXID];
1003: static struct ctlname kernmallocname[] = CTL_KERN_MALLOC_NAMES;
1004: static struct ctlname forkstatname[] = CTL_KERN_FORKSTAT_NAMES;
1005: static struct ctlname nchstatsname[] = CTL_KERN_NCHSTATS_NAMES;
1.88 guenther 1006: static struct ctlname kernprocname[] = {
1.64 guenther 1007: { NULL },
1008: { "all" },
1009: { "pid" },
1010: { "pgrp" },
1011: { "session" },
1012: { "tty" },
1013: { "uid" },
1014: { "ruid" },
1.77 guenther 1015: { "kthread" },
1.64 guenther 1016: };
1.62 otto 1017: static struct ctlname ttysname[] = CTL_KERN_TTY_NAMES;
1018: static struct ctlname semname[] = CTL_KERN_SEMINFO_NAMES;
1019: static struct ctlname shmname[] = CTL_KERN_SHMINFO_NAMES;
1020: static struct ctlname watchdogname[] = CTL_KERN_WATCHDOG_NAMES;
1021: static struct ctlname tcname[] = CTL_KERN_TIMECOUNTER_NAMES;
1022: #ifdef CTL_MACHDEP_NAMES
1023: static struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
1024: #endif
1025: static struct ctlname ddbname[] = CTL_DDB_NAMES;
1026:
1027: #ifndef nitems
1028: #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
1029: #endif
1030:
1031: #define SETNAME(name) do { names = (name); limit = nitems(name); } while (0)
1032:
1033: static const char *
1.94 guenther 1034: kresolvsysctl(int depth, const int *top)
1.62 otto 1035: {
1036: struct ctlname *names;
1037: size_t limit;
1.94 guenther 1038: int idx = top[depth];
1.62 otto 1039:
1040: names = NULL;
1041:
1042: switch (depth) {
1043: case 0:
1044: SETNAME(topname);
1045: break;
1046: case 1:
1047: switch (top[0]) {
1048: case CTL_KERN:
1049: SETNAME(kernname);
1050: break;
1051: case CTL_VM:
1052: SETNAME(vmname);
1053: break;
1054: case CTL_FS:
1055: SETNAME(fsname);
1056: break;
1057: case CTL_NET:
1058: SETNAME(netname);
1059: break;
1060: case CTL_DEBUG:
1061: SETNAME(debugname);
1062: break;
1063: case CTL_HW:
1064: SETNAME(hwname);
1065: break;
1066: #ifdef CTL_MACHDEP_NAMES
1067: case CTL_MACHDEP:
1068: SETNAME(machdepname);
1069: break;
1070: #endif
1071: case CTL_DDB:
1072: SETNAME(ddbname);
1073: break;
1074: }
1075: break;
1076: case 2:
1077: switch (top[0]) {
1078: case CTL_KERN:
1079: switch (top[1]) {
1080: case KERN_MALLOCSTATS:
1081: SETNAME(kernmallocname);
1082: break;
1083: case KERN_FORKSTAT:
1084: SETNAME(forkstatname);
1085: break;
1086: case KERN_NCHSTATS:
1087: SETNAME(nchstatsname);
1088: break;
1089: case KERN_TTY:
1090: SETNAME(ttysname);
1091: break;
1092: case KERN_SEMINFO:
1093: SETNAME(semname);
1094: break;
1095: case KERN_SHMINFO:
1096: SETNAME(shmname);
1097: break;
1098: case KERN_WATCHDOG:
1099: SETNAME(watchdogname);
1100: break;
1.64 guenther 1101: case KERN_PROC:
1102: idx++; /* zero is valid at this level */
1103: SETNAME(kernprocname);
1104: break;
1.62 otto 1105: case KERN_TIMECOUNTER:
1106: SETNAME(tcname);
1107: break;
1108: }
1109: }
1110: break;
1111: }
1112: if (names != NULL && idx > 0 && idx < limit)
1113: return (names[idx].ctl_name);
1114: return (NULL);
1.1 deraadt 1115: }
1116:
1.12 espie 1117: static void
1.103 guenther 1118: ktrsysret(struct ktr_sysret *ktr, size_t ktrlen)
1.1 deraadt 1119: {
1.103 guenther 1120: register_t ret = 0;
1121: long long retll;
1.12 espie 1122: int error = ktr->ktr_error;
1123: int code = ktr->ktr_code;
1.1 deraadt 1124:
1.103 guenther 1125: if (ktrlen < sizeof(*ktr))
1126: errx(1, "sysret length %zu < ktr header length %zu",
1127: ktrlen, sizeof(*ktr));
1128: ktrlen -= sizeof(*ktr);
1129: if (error == 0) {
1130: if (ktrlen == sizeof(ret)) {
1131: memcpy(&ret, ktr+1, sizeof(ret));
1132: retll = ret;
1133: } else if (ktrlen == sizeof(retll))
1134: memcpy(&retll, ktr+1, sizeof(retll));
1135: else
1136: errx(1, "sysret bogus length %zu", ktrlen);
1137: }
1138:
1.122 guenther 1139: if (code >= SYS_MAXSYSCALL || code < 0)
1.1 deraadt 1140: (void)printf("[%d] ", code);
1.122 guenther 1141: else
1142: (void)printf("%s ", syscallnames[code]);
1.1 deraadt 1143:
1.127 guenther 1144: doerr:
1.1 deraadt 1145: if (error == 0) {
1146: if (fancy) {
1.122 guenther 1147: switch (code) {
1.103 guenther 1148: case SYS_lseek:
1.145 guenther 1149: #ifdef SYS_pad_lseek
1150: case SYS_pad_lseek:
1151: #endif
1.103 guenther 1152: (void)printf("%lld", retll);
1153: if (retll < 0 || retll > 9)
1154: (void)printf("/%#llx", retll);
1155: break;
1.64 guenther 1156: case SYS_sigprocmask:
1.73 guenther 1157: case SYS_sigpending:
1.64 guenther 1158: sigset(ret);
1159: break;
1160: case SYS___thrsigdivert:
1161: signame(ret);
1.94 guenther 1162: break;
1163: case SYS_getuid:
1164: case SYS_geteuid:
1165: uidname(ret);
1166: break;
1167: case SYS_getgid:
1168: case SYS_getegid:
1169: gidname(ret);
1.64 guenther 1170: break;
1.127 guenther 1171: /* syscalls that return errno values */
1172: case SYS_getlogin_r:
1173: case SYS___thrsleep:
1174: if ((error = ret) != 0)
1175: goto doerr;
1176: /* FALLTHROUGH */
1.64 guenther 1177: default:
1178: (void)printf("%ld", (long)ret);
1179: if (ret < 0 || ret > 9)
1180: (void)printf("/%#lx", (long)ret);
1181: }
1.1 deraadt 1182: } else {
1183: if (decimal)
1.103 guenther 1184: (void)printf("%lld", retll);
1.1 deraadt 1185: else
1.103 guenther 1186: (void)printf("%#llx", retll);
1.1 deraadt 1187: }
1188: } else if (error == ERESTART)
1189: (void)printf("RESTART");
1190: else if (error == EJUSTRETURN)
1191: (void)printf("JUSTRETURN");
1192: else {
1.127 guenther 1193: (void)printf("-1 errno %d", error);
1.1 deraadt 1194: if (fancy)
1.127 guenther 1195: (void)printf(" %s", strerror(error));
1.1 deraadt 1196: }
1197: (void)putchar('\n');
1198: }
1199:
1.12 espie 1200: static void
1.37 tedu 1201: ktrnamei(const char *cp, size_t len)
1.1 deraadt 1202: {
1.126 guenther 1203: showbufc(basecol, (unsigned char *)cp, len, VIS_DQ | VIS_TAB | VIS_NL);
1.1 deraadt 1204: }
1205:
1.111 guenther 1206: void
1.126 guenther 1207: showbufc(int col, unsigned char *dp, size_t datalen, int flags)
1.106 guenther 1208: {
1.126 guenther 1209: int width;
1210: unsigned char visbuf[5], *cp;
1.106 guenther 1211:
1.126 guenther 1212: flags |= VIS_CSTYLE;
1.106 guenther 1213: putchar('"');
1.111 guenther 1214: col++;
1.106 guenther 1215: for (; datalen > 0; datalen--, dp++) {
1.126 guenther 1216: (void)vis(visbuf, *dp, flags, *(dp+1));
1.106 guenther 1217: cp = visbuf;
1218:
1219: /*
1220: * Keep track of printables and
1221: * space chars (like fold(1)).
1222: */
1223: if (col == 0) {
1224: (void)putchar('\t');
1225: col = 8;
1226: }
1227: switch (*cp) {
1228: case '\n':
1229: col = 0;
1230: (void)putchar('\n');
1231: continue;
1232: case '\t':
1233: width = 8 - (col&07);
1234: break;
1235: default:
1236: width = strlen(cp);
1237: }
1238: if (col + width > (screenwidth-2)) {
1239: (void)printf("\\\n\t");
1240: col = 8;
1241: }
1242: col += width;
1243: do {
1244: (void)putchar(*cp++);
1245: } while (*cp);
1246: }
1247: if (col == 0)
1248: (void)printf(" ");
1249: (void)printf("\"\n");
1250: }
1251:
1252: static void
1.81 miod 1253: showbuf(unsigned char *dp, size_t datalen)
1.1 deraadt 1254: {
1.37 tedu 1255: int i, j;
1.126 guenther 1256: int col = 0, bpl;
1257: unsigned char c;
1.1 deraadt 1258:
1.31 tedu 1259: if (iohex == 1) {
1260: putchar('\t');
1261: col = 8;
1262: for (i = 0; i < datalen; i++) {
1.35 tedu 1263: printf("%02x", dp[i]);
1.31 tedu 1264: col += 3;
1265: if (i < datalen - 1) {
1266: if (col + 3 > screenwidth) {
1267: printf("\n\t");
1268: col = 8;
1269: } else
1270: putchar(' ');
1271: }
1272: }
1273: putchar('\n');
1274: return;
1275: }
1276: if (iohex == 2) {
1277: bpl = (screenwidth - 13)/4;
1278: if (bpl <= 0)
1279: bpl = 1;
1280: for (i = 0; i < datalen; i += bpl) {
1281: printf(" %04x: ", i);
1282: for (j = 0; j < bpl; j++) {
1283: if (i+j >= datalen)
1284: printf(" ");
1285: else
1.35 tedu 1286: printf("%02x ", dp[i+j]);
1.31 tedu 1287: }
1288: putchar(' ');
1289: for (j = 0; j < bpl; j++) {
1290: if (i+j >= datalen)
1291: break;
1292: c = dp[i+j];
1293: if (!isprint(c))
1294: c = '.';
1295: putchar(c);
1296: }
1297: putchar('\n');
1298: }
1299: return;
1300: }
1.111 guenther 1301:
1302: (void)printf(" ");
1.126 guenther 1303: showbufc(7, dp, datalen, 0);
1.1 deraadt 1304: }
1305:
1.12 espie 1306: static void
1.81 miod 1307: ktrgenio(struct ktr_genio *ktr, size_t len)
1308: {
1309: unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
1.93 jsg 1310: size_t datalen;
1311:
1312: if (len < sizeof(struct ktr_genio))
1313: errx(1, "invalid ktr genio length %zu", len);
1314:
1315: datalen = len - sizeof(struct ktr_genio);
1.81 miod 1316:
1317: printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
1318: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
1319: if (maxdata == 0)
1320: return;
1321: if (datalen > maxdata)
1322: datalen = maxdata;
1323: if (iohex && !datalen)
1324: return;
1325: showbuf(dp, datalen);
1326: }
1327:
1328: static void
1.17 deraadt 1329: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 1330: {
1.93 jsg 1331: signame(psig->signo);
1.96 bluhm 1332: printf(" ");
1.1 deraadt 1333: if (psig->action == SIG_DFL)
1.63 deraadt 1334: (void)printf("SIG_DFL");
1.64 guenther 1335: else {
1336: (void)printf("caught handler=0x%lx mask=",
1337: (u_long)psig->action);
1338: sigset(psig->mask);
1339: }
1.63 deraadt 1340: if (psig->code) {
1341: printf(" code ");
1342: if (fancy) {
1343: switch (psig->signo) {
1344: case SIGILL:
1345: sigill_name(psig->code);
1346: break;
1347: case SIGTRAP:
1348: sigtrap_name(psig->code);
1349: break;
1350: case SIGEMT:
1351: sigemt_name(psig->code);
1352: break;
1353: case SIGFPE:
1354: sigfpe_name(psig->code);
1355: break;
1356: case SIGBUS:
1357: sigbus_name(psig->code);
1358: break;
1359: case SIGSEGV:
1360: sigsegv_name(psig->code);
1361: break;
1362: case SIGCHLD:
1363: sigchld_name(psig->code);
1364: break;
1365: }
1366: }
1367: printf("<%d>", psig->code);
1368: }
1369:
1.14 deraadt 1370: switch (psig->signo) {
1371: case SIGSEGV:
1372: case SIGILL:
1373: case SIGBUS:
1374: case SIGFPE:
1375: printf(" addr=%p trapno=%d", psig->si.si_addr,
1376: psig->si.si_trapno);
1377: break;
1378: default:
1379: break;
1380: }
1381: printf("\n");
1.1 deraadt 1382: }
1383:
1.64 guenther 1384: static void
1.81 miod 1385: ktruser(struct ktr_user *usr, size_t len)
1386: {
1.93 jsg 1387: if (len < sizeof(struct ktr_user))
1388: errx(1, "invalid ktr user length %zu", len);
1.81 miod 1389: len -= sizeof(struct ktr_user);
1390: printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
1391: printf(" %zu bytes\n", len);
1392: showbuf((unsigned char *)(usr + 1), len);
1.106 guenther 1393: }
1394:
1395: static void
1396: ktrexec(const char *ptr, size_t len)
1397: {
1.111 guenther 1398: int i, col;
1.106 guenther 1399: size_t l;
1400:
1401: putchar('\n');
1402: i = 0;
1403: while (len > 0) {
1404: l = strnlen(ptr, len);
1.111 guenther 1405: col = printf("\t[%d] = ", i++);
1406: col += 7; /* tab expands from 1 to 8 columns */
1.126 guenther 1407: showbufc(col, (unsigned char *)ptr, l, VIS_DQ|VIS_TAB|VIS_NL);
1.106 guenther 1408: if (l == len) {
1409: printf("\tunterminated argument\n");
1410: break;
1411: }
1412: len -= l + 1;
1413: ptr += l + 1;
1414: }
1.117 deraadt 1415: }
1416:
1417: static void
1418: ktrpledge(struct ktr_pledge *pledge, size_t len)
1419: {
1.142 visa 1420: const char *name = "";
1.117 deraadt 1421: int i;
1422:
1423: if (len < sizeof(struct ktr_pledge))
1424: errx(1, "invalid ktr pledge length %zu", len);
1425:
1.122 guenther 1426: if (pledge->syscall >= SYS_MAXSYSCALL || pledge->syscall < 0)
1.117 deraadt 1427: (void)printf("[%d]", pledge->syscall);
1428: else
1.122 guenther 1429: (void)printf("%s", syscallnames[pledge->syscall]);
1.117 deraadt 1430: printf(", ");
1.118 deraadt 1431: for (i = 0; pledge->code && pledgenames[i].bits != 0; i++) {
1.117 deraadt 1432: if (pledgenames[i].bits & pledge->code) {
1.118 deraadt 1433: name = pledgenames[i].name;
1.117 deraadt 1434: break;
1435: }
1436: }
1.118 deraadt 1437: printf("\"%s\"", name);
1.117 deraadt 1438: (void)printf(", errno %d", pledge->error);
1439: if (fancy)
1440: (void)printf(" %s", strerror(pledge->error));
1441: printf("\n");
1.81 miod 1442: }
1443:
1444: static void
1.17 deraadt 1445: usage(void)
1.1 deraadt 1446: {
1447:
1.19 mickey 1448: extern char *__progname;
1449: fprintf(stderr, "usage: %s "
1.138 schwarze 1450: "[-dHlnRTXx] [-f file] [-m maxdata] [-p pid] [-t trstr]\n",
1451: __progname);
1.1 deraadt 1452: exit(1);
1453: }
1454:
1.61 matthew 1455:
1.92 guenther 1456: /*
1457: * FORMATTERS
1458: */
1459:
1460: static void
1461: ioctldecode(int cmd)
1462: {
1463: char dirbuf[4], *dir = dirbuf;
1464: const char *cp;
1465:
1466: if ((cp = ioctlname((unsigned)cmd)) != NULL) {
1467: (void)printf("%s", cp);
1468: return;
1469: }
1470:
1471: if (cmd & IOC_IN)
1472: *dir++ = 'W';
1473: if (cmd & IOC_OUT)
1474: *dir++ = 'R';
1475: *dir = '\0';
1476:
1.109 zhuk 1477: printf("_IO%s('%c',%d",
1.92 guenther 1478: dirbuf, (int)((cmd >> 8) & 0xff), cmd & 0xff);
1479: if ((cmd & IOC_VOID) == 0)
1480: printf(decimal ? ",%u)" : ",%#x)", (cmd >> 16) & 0xff);
1481: else
1482: printf(")");
1483: }
1484:
1485: static void
1486: ptracedecode(int request)
1487: {
1488: if (request >= 0 && request < nitems(ptrace_ops))
1489: (void)printf("%s", ptrace_ops[request]);
1490: else switch(request) {
1491: #ifdef PT_GETFPREGS
1492: case PT_GETFPREGS:
1493: (void)printf("PT_GETFPREGS");
1494: break;
1495: #endif
1496: case PT_GETREGS:
1497: (void)printf("PT_GETREGS");
1498: break;
1499: #ifdef PT_GETXMMREGS
1500: case PT_GETXMMREGS:
1501: (void)printf("PT_GETXMMREGS");
1502: break;
1503: #endif
1504: #ifdef PT_SETFPREGS
1505: case PT_SETFPREGS:
1506: (void)printf("PT_SETFPREGS");
1507: break;
1508: #endif
1509: case PT_SETREGS:
1510: (void)printf("PT_SETREGS");
1511: break;
1512: #ifdef PT_SETXMMREGS
1513: case PT_SETXMMREGS:
1514: (void)printf("PT_SETXMMREGS");
1515: break;
1516: #endif
1517: #ifdef PT_STEP
1518: case PT_STEP:
1519: (void)printf("PT_STEP");
1520: break;
1521: #endif
1522: #ifdef PT_WCOOKIE
1523: case PT_WCOOKIE:
1524: (void)printf("PT_WCOOKIE");
1525: break;
1526: #endif
1527: default:
1528: pdecint(request);
1529: }
1530: }
1531:
1532:
1.61 matthew 1533: static void
1534: atfd(int fd)
1535: {
1536: if (fd == AT_FDCWD)
1537: (void)printf("AT_FDCWD");
1538: else
1.92 guenther 1539: pdecint(fd);
1.77 guenther 1540: }
1541:
1542: static void
1543: polltimeout(int timeout)
1544: {
1545: if (timeout == INFTIM)
1546: (void)printf("INFTIM");
1547: else
1.92 guenther 1548: pdecint(timeout);
1.82 guenther 1549: }
1550:
1551: static void
1552: wait4pid(int pid)
1553: {
1554: if (pid == WAIT_ANY)
1555: (void)printf("WAIT_ANY");
1556: else if (pid == WAIT_MYPGRP)
1557: (void)printf("WAIT_MYPGRP");
1558: else
1.92 guenther 1559: pdecint(pid); /* ppgid */
1.1 deraadt 1560: }
1.83 guenther 1561:
1562: static void
1563: signame(int sig)
1564: {
1565: if (sig > 0 && sig < NSIG)
1566: (void)printf("SIG%s", sys_signame[sig]);
1567: else
1568: (void)printf("SIG %d", sig);
1569: }
1570:
1.84 guenther 1571: void
1.83 guenther 1572: sigset(int ss)
1573: {
1574: int or = 0;
1575: int cnt = 0;
1576: int i;
1577:
1578: for (i = 1; i < NSIG; i++)
1579: if (sigismember(&ss, i))
1580: cnt++;
1581: if (cnt > (NSIG-1)/2) {
1582: ss = ~ss;
1583: putchar('~');
1584: }
1585:
1586: if (ss == 0) {
1587: (void)printf("0<>");
1588: return;
1589: }
1590:
1591: printf("%#x<", ss);
1592: for (i = 1; i < NSIG; i++)
1593: if (sigismember(&ss, i)) {
1594: if (or) putchar('|'); else or=1;
1595: signame(i);
1596: }
1597: printf(">");
1598: }
1599:
1600: static void
1601: semctlname(int cmd)
1602: {
1603: switch (cmd) {
1604: case GETNCNT:
1605: (void)printf("GETNCNT");
1606: break;
1607: case GETPID:
1608: (void)printf("GETPID");
1609: break;
1610: case GETVAL:
1611: (void)printf("GETVAL");
1612: break;
1613: case GETALL:
1614: (void)printf("GETALL");
1615: break;
1616: case GETZCNT:
1617: (void)printf("GETZCNT");
1618: break;
1619: case SETVAL:
1620: (void)printf("SETVAL");
1621: break;
1622: case SETALL:
1623: (void)printf("SETALL");
1624: break;
1625: case IPC_RMID:
1626: (void)printf("IPC_RMID");
1627: break;
1628: case IPC_SET:
1629: (void)printf("IPC_SET");
1630: break;
1631: case IPC_STAT:
1632: (void)printf("IPC_STAT");
1633: break;
1634: default: /* Should not reach */
1.92 guenther 1635: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1636: }
1637: }
1638:
1639: static void
1.88 guenther 1640: shmctlname(int cmd)
1641: {
1.83 guenther 1642: switch (cmd) {
1643: case IPC_RMID:
1644: (void)printf("IPC_RMID");
1645: break;
1646: case IPC_SET:
1647: (void)printf("IPC_SET");
1648: break;
1649: case IPC_STAT:
1650: (void)printf("IPC_STAT");
1651: break;
1652: default: /* Should not reach */
1.92 guenther 1653: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1654: }
1655: }
1656:
1657:
1658: static void
1.88 guenther 1659: semgetname(int flag)
1660: {
1.83 guenther 1661: int or = 0;
1662: if_print_or(flag, IPC_CREAT, or);
1663: if_print_or(flag, IPC_EXCL, or);
1664: if_print_or(flag, SEM_R, or);
1665: if_print_or(flag, SEM_A, or);
1666: if_print_or(flag, (SEM_R>>3), or);
1667: if_print_or(flag, (SEM_A>>3), or);
1668: if_print_or(flag, (SEM_R>>6), or);
1669: if_print_or(flag, (SEM_A>>6), or);
1.92 guenther 1670:
1671: if (flag & ~(IPC_CREAT|IPC_EXCL|SEM_R|SEM_A|((SEM_R|SEM_A)>>3)|
1672: ((SEM_R|SEM_A)>>6)))
1673: printf("<invalid=%#x>", flag);
1.83 guenther 1674: }
1675:
1676:
1677: /*
1.92 guenther 1678: * Only used by SYS_open and SYS_openat. Unless O_CREAT is set in flags, the
1.83 guenther 1679: * mode argument is unused (and often bogus and misleading).
1680: */
1681: static void
1.92 guenther 1682: flagsandmodename(int mode)
1.88 guenther 1683: {
1.92 guenther 1684: openflagsname(arg1);
1685: if ((arg1 & O_CREAT) == O_CREAT) {
1.83 guenther 1686: (void)putchar(',');
1.92 guenther 1687: modename(mode);
1688: } else if (!fancy)
1689: (void)printf(",<unused>%#o", mode);
1.83 guenther 1690: }
1691:
1692: static void
1693: clockname(int clockid)
1694: {
1695: clocktypename(__CLOCK_TYPE(clockid));
1696: if (__CLOCK_PTID(clockid) != 0)
1697: printf("(%d)", __CLOCK_PTID(clockid));
1698: }
1699:
1700: /*
1701: * [g|s]etsockopt's level argument can either be SOL_SOCKET or a value
1.100 guenther 1702: * referring to a line in /etc/protocols.
1.83 guenther 1703: */
1704: static void
1.100 guenther 1705: sockoptlevelname(int optname)
1.83 guenther 1706: {
1.100 guenther 1707: struct protoent *pe;
1708:
1709: if (arg1 == SOL_SOCKET) {
1710: (void)printf("SOL_SOCKET,");
1711: sockoptname(optname);
1712: } else {
1713: pe = getprotobynumber(arg1);
1714: (void)printf("%u<%s>,%d", arg1,
1715: pe != NULL ? pe->p_name : "unknown", optname);
1716: }
1.83 guenther 1717: }
1718:
1.88 guenther 1719: static void
1720: ktraceopname(int ops)
1721: {
1722: int invalid = 0;
1723:
1724: printf("%#x<", ops);
1725: switch (KTROP(ops)) {
1726: case KTROP_SET:
1727: printf("KTROP_SET");
1728: break;
1729: case KTROP_CLEAR:
1730: printf("KTROP_CLEAR");
1731: break;
1732: case KTROP_CLEARFILE:
1733: printf("KTROP_CLEARFILE");
1734: break;
1735: default:
1736: printf("KTROP(%d)", KTROP(ops));
1737: invalid = 1;
1738: break;
1739: }
1.92 guenther 1740: if (ops & KTRFLAG_DESCEND) printf("|KTRFLAG_DESCEND");
1.88 guenther 1741: printf(">");
1742: if (invalid || (ops & ~(KTROP((unsigned)-1) | KTRFLAG_DESCEND)))
1.92 guenther 1743: (void)printf("<invalid>%d", ops);
1.88 guenther 1744: }
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