Annotation of src/usr.bin/kdump/kdump.c, Revision 1.110
1.110 ! guenther 1: /* $OpenBSD: kdump.c,v 1.109 2015/10/03 09:12:39 zhuk 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>
1.1 deraadt 49: #define _KERNEL
1.84 guenther 50: #include <errno.h>
1.1 deraadt 51: #undef _KERNEL
1.62 otto 52: #include <ddb/db_var.h>
53: #include <machine/cpu.h>
1.1 deraadt 54:
1.33 tedu 55: #include <ctype.h>
1.1 deraadt 56: #include <err.h>
1.61 matthew 57: #include <fcntl.h>
1.64 guenther 58: #include <limits.h>
1.100 guenther 59: #include <netdb.h>
1.77 guenther 60: #include <poll.h>
1.1 deraadt 61: #include <signal.h>
62: #include <stdio.h>
63: #include <stdlib.h>
1.55 otto 64: #include <stdint.h>
1.1 deraadt 65: #include <string.h>
66: #include <unistd.h>
67: #include <vis.h>
68:
69: #include "ktrace.h"
1.22 deraadt 70: #include "kdump.h"
1.51 otto 71: #include "kdump_subr.h"
1.12 espie 72: #include "extern.h"
1.1 deraadt 73:
1.67 mikeb 74: int timestamp, decimal, iohex, fancy = 1, maxdata = INT_MAX;
1.94 guenther 75: int needtid, tail;
1.1 deraadt 76: char *tracefile = DEF_TRACEFILE;
77: struct ktr_header ktr_header;
1.85 guenther 78: pid_t pid_opt = -1;
1.1 deraadt 79:
80: #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
81:
82: #include <sys/syscall.h>
83:
1.25 mickey 84: #include <compat/linux/linux_syscall.h>
1.1 deraadt 85:
86: #define KTRACE
1.19 mickey 87: #define PTRACE
1.7 deraadt 88: #define NFSCLIENT
89: #define NFSSERVER
90: #define SYSVSEM
91: #define SYSVMSG
92: #define SYSVSHM
1.110 ! guenther 93: #define ACCOUNTING
1.25 mickey 94: #include <kern/syscalls.c>
1.1 deraadt 95:
1.25 mickey 96: #include <compat/linux/linux_syscalls.c>
1.1 deraadt 97: #undef KTRACE
1.19 mickey 98: #undef PTRACE
1.7 deraadt 99: #undef NFSCLIENT
100: #undef NFSSERVER
101: #undef SYSVSEM
102: #undef SYSVMSG
103: #undef SYSVSHM
1.110 ! guenther 104: #undef ACCOUNTING
1.1 deraadt 105:
106: struct emulation {
107: char *name; /* Emulation name */
108: char **sysnames; /* Array of system call names */
109: int nsysnames; /* Number of */
110: };
111:
112: static struct emulation emulations[] = {
1.9 deraadt 113: { "native", syscallnames, SYS_MAXSYSCALL },
114: { "linux", linux_syscallnames, LINUX_SYS_MAXSYSCALL },
1.49 miod 115: { NULL, NULL, 0 }
1.1 deraadt 116: };
117:
1.59 otto 118: static struct emulation *current;
1.60 otto 119: static struct emulation *def_emul;
1.59 otto 120:
121: struct pid_emul {
122: struct emulation *e;
123: pid_t p;
124: };
125:
126: static struct pid_emul *pe_table;
127: static size_t pe_size;
1.1 deraadt 128:
129:
130: static char *ptrace_ops[] = {
131: "PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
132: "PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
1.15 art 133: "PT_KILL", "PT_ATTACH", "PT_DETACH", "PT_IO",
1.64 guenther 134: "PT_SET_EVENT_MASK", "PT_GET_EVENT_MASK", "PT_GET_PROCESS_STATE",
1.71 guenther 135: "PT_GET_THREAD_FIRST", "PT_GET_THREAD_NEXT",
1.1 deraadt 136: };
137:
1.59 otto 138: static void mappidtoemul(pid_t, struct emulation *);
139: static struct emulation * findemul(pid_t);
1.37 tedu 140: static int fread_tail(void *, size_t, size_t);
1.13 millert 141: static void dumpheader(struct ktr_header *);
1.37 tedu 142: static void ktremul(char *, size_t);
143: static void ktrgenio(struct ktr_genio *, size_t);
144: static void ktrnamei(const char *, size_t);
1.13 millert 145: static void ktrpsig(struct ktr_psig *);
1.93 jsg 146: static void ktrsyscall(struct ktr_syscall *, size_t);
1.94 guenther 147: static const char *kresolvsysctl(int, const int *);
1.103 guenther 148: static void ktrsysret(struct ktr_sysret *, size_t);
1.81 miod 149: static void ktruser(struct ktr_user *, size_t);
1.106 guenther 150: static void ktrexec(const char*, size_t);
1.13 millert 151: static void setemul(const char *);
152: static void usage(void);
1.92 guenther 153: static void ioctldecode(int);
154: static void ptracedecode(int);
1.61 matthew 155: static void atfd(int);
1.77 guenther 156: static void polltimeout(int);
1.82 guenther 157: static void wait4pid(int);
1.83 guenther 158: static void signame(int);
159: static void semctlname(int);
160: static void shmctlname(int);
161: static void semgetname(int);
1.92 guenther 162: static void flagsandmodename(int);
1.83 guenther 163: static void clockname(int);
164: static void sockoptlevelname(int);
1.88 guenther 165: static void ktraceopname(int);
1.12 espie 166:
1.102 deraadt 167: static int screenwidth;
168:
1.1 deraadt 169: int
1.17 deraadt 170: main(int argc, char *argv[])
1.1 deraadt 171: {
1.37 tedu 172: int ch, silent;
173: size_t ktrlen, size;
1.17 deraadt 174: int trpoints = ALL_POINTS;
1.101 deraadt 175: const char *errstr;
1.12 espie 176: void *m;
1.1 deraadt 177:
1.60 otto 178: def_emul = current = &emulations[0]; /* native */
1.1 deraadt 179:
1.102 deraadt 180: if (screenwidth == 0) {
181: struct winsize ws;
182:
183: if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
184: ws.ws_col > 8)
185: screenwidth = ws.ws_col;
186: else
187: screenwidth = 80;
188: }
189:
1.94 guenther 190: while ((ch = getopt(argc, argv, "e:f:dHlm:nRp:Tt:xX")) != -1)
1.1 deraadt 191: switch (ch) {
192: case 'e':
193: setemul(optarg);
1.60 otto 194: def_emul = current;
1.1 deraadt 195: break;
196: case 'f':
197: tracefile = optarg;
198: break;
199: case 'd':
200: decimal = 1;
201: break;
1.67 mikeb 202: case 'H':
203: needtid = 1;
204: break;
1.1 deraadt 205: case 'l':
206: tail = 1;
207: break;
208: case 'm':
1.101 deraadt 209: maxdata = strtonum(optarg, 0, INT_MAX, &errstr);
210: if (errstr)
211: errx(1, "-m %s: %s", optarg, errstr);
1.1 deraadt 212: break;
213: case 'n':
214: fancy = 0;
215: break;
1.17 deraadt 216: case 'p':
1.101 deraadt 217: pid_opt = strtonum(optarg, 1, INT_MAX, &errstr);
218: if (errstr)
219: errx(1, "-p %s: %s", optarg, errstr);
1.17 deraadt 220: break;
1.1 deraadt 221: case 'R':
222: timestamp = 2; /* relative timestamp */
223: break;
224: case 'T':
225: timestamp = 1;
226: break;
227: case 't':
228: trpoints = getpoints(optarg);
229: if (trpoints < 0)
230: errx(1, "unknown trace point in %s", optarg);
231: break;
1.31 tedu 232: case 'x':
233: iohex = 1;
234: break;
235: case 'X':
236: iohex = 2;
237: break;
1.1 deraadt 238: default:
239: usage();
240: }
1.5 deraadt 241: if (argc > optind)
1.1 deraadt 242: usage();
1.108 deraadt 243:
244: if (tame("stdio getpw rpath", NULL) == -1)
245: err(1, "tame");
1.1 deraadt 246:
1.37 tedu 247: m = malloc(size = 1025);
1.1 deraadt 248: if (m == NULL)
1.37 tedu 249: err(1, NULL);
1.1 deraadt 250: if (!freopen(tracefile, "r", stdin))
251: err(1, "%s", tracefile);
1.67 mikeb 252: if (fread_tail(&ktr_header, sizeof(struct ktr_header), 1) == 0 ||
253: ktr_header.ktr_type != htobe32(KTR_START))
254: errx(1, "%s: not a dump", tracefile);
1.1 deraadt 255: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
1.17 deraadt 256: silent = 0;
1.59 otto 257: if (pe_size == 0)
258: mappidtoemul(ktr_header.ktr_pid, current);
1.85 guenther 259: if (pid_opt != -1 && pid_opt != ktr_header.ktr_pid)
1.17 deraadt 260: silent = 1;
261: if (silent == 0 && trpoints & (1<<ktr_header.ktr_type))
1.1 deraadt 262: dumpheader(&ktr_header);
1.37 tedu 263: ktrlen = ktr_header.ktr_len;
1.1 deraadt 264: if (ktrlen > size) {
1.23 tedu 265: void *newm;
266:
1.64 guenther 267: if (ktrlen == SIZE_MAX)
268: errx(1, "data too long");
1.23 tedu 269: newm = realloc(m, ktrlen+1);
270: if (newm == NULL)
1.66 deraadt 271: err(1, "realloc");
1.23 tedu 272: m = newm;
1.1 deraadt 273: size = ktrlen;
274: }
275: if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
276: errx(1, "data too short");
1.17 deraadt 277: if (silent)
278: continue;
1.1 deraadt 279: if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
280: continue;
1.59 otto 281: current = findemul(ktr_header.ktr_pid);
1.1 deraadt 282: switch (ktr_header.ktr_type) {
283: case KTR_SYSCALL:
1.93 jsg 284: ktrsyscall((struct ktr_syscall *)m, ktrlen);
1.1 deraadt 285: break;
286: case KTR_SYSRET:
1.103 guenther 287: ktrsysret((struct ktr_sysret *)m, ktrlen);
1.1 deraadt 288: break;
289: case KTR_NAMEI:
290: ktrnamei(m, ktrlen);
291: break;
292: case KTR_GENIO:
293: ktrgenio((struct ktr_genio *)m, ktrlen);
294: break;
295: case KTR_PSIG:
296: ktrpsig((struct ktr_psig *)m);
297: break;
298: case KTR_EMUL:
299: ktremul(m, ktrlen);
1.59 otto 300: mappidtoemul(ktr_header.ktr_pid, current);
1.1 deraadt 301: break;
1.55 otto 302: case KTR_STRUCT:
303: ktrstruct(m, ktrlen);
304: break;
1.81 miod 305: case KTR_USER:
306: ktruser(m, ktrlen);
307: break;
1.106 guenther 308: case KTR_EXECARGS:
309: case KTR_EXECENV:
310: ktrexec(m, ktrlen);
311: break;
1.1 deraadt 312: }
313: if (tail)
314: (void)fflush(stdout);
315: }
1.12 espie 316: exit(0);
1.1 deraadt 317: }
318:
1.59 otto 319: static void
320: mappidtoemul(pid_t pid, struct emulation *emul)
321: {
322: size_t i;
323: struct pid_emul *tmp;
324:
325: for (i = 0; i < pe_size; i++) {
326: if (pe_table[i].p == pid) {
327: pe_table[i].e = emul;
328: return;
329: }
330: }
1.90 doug 331: tmp = reallocarray(pe_table, pe_size + 1, sizeof(*pe_table));
1.59 otto 332: if (tmp == NULL)
333: err(1, NULL);
334: pe_table = tmp;
335: pe_table[pe_size].p = pid;
336: pe_table[pe_size].e = emul;
337: pe_size++;
338: }
339:
340: static struct emulation*
341: findemul(pid_t pid)
342: {
343: size_t i;
344:
345: for (i = 0; i < pe_size; i++)
346: if (pe_table[i].p == pid)
347: return pe_table[i].e;
1.60 otto 348: return def_emul;
1.59 otto 349: }
350:
1.12 espie 351: static int
1.37 tedu 352: fread_tail(void *buf, size_t size, size_t num)
1.1 deraadt 353: {
354: int i;
355:
356: while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
357: (void)sleep(1);
358: clearerr(stdin);
359: }
360: return (i);
361: }
362:
1.12 espie 363: static void
1.17 deraadt 364: dumpheader(struct ktr_header *kth)
1.1 deraadt 365: {
1.67 mikeb 366: static struct timespec prevtime;
1.1 deraadt 367: char unknown[64], *type;
1.67 mikeb 368: struct timespec temp;
1.1 deraadt 369:
370: switch (kth->ktr_type) {
371: case KTR_SYSCALL:
372: type = "CALL";
373: break;
374: case KTR_SYSRET:
375: type = "RET ";
376: break;
377: case KTR_NAMEI:
378: type = "NAMI";
379: break;
380: case KTR_GENIO:
381: type = "GIO ";
382: break;
383: case KTR_PSIG:
384: type = "PSIG";
385: break;
386: case KTR_EMUL:
387: type = "EMUL";
388: break;
1.55 otto 389: case KTR_STRUCT:
390: type = "STRU";
391: break;
1.81 miod 392: case KTR_USER:
393: type = "USER";
394: break;
1.106 guenther 395: case KTR_EXECARGS:
396: type = "ARGS";
397: break;
398: case KTR_EXECENV:
399: type = "ENV ";
400: break;
1.1 deraadt 401: default:
1.17 deraadt 402: (void)snprintf(unknown, sizeof unknown, "UNKNOWN(%d)",
403: kth->ktr_type);
1.1 deraadt 404: type = unknown;
405: }
406:
1.67 mikeb 407: (void)printf("%6ld", (long)kth->ktr_pid);
408: if (needtid)
1.69 mikeb 409: (void)printf("/%-7ld", (long)kth->ktr_tid);
1.67 mikeb 410: (void)printf(" %-8.*s ", MAXCOMLEN, kth->ktr_comm);
1.1 deraadt 411: if (timestamp) {
412: if (timestamp == 2) {
1.67 mikeb 413: timespecsub(&kth->ktr_time, &prevtime, &temp);
1.1 deraadt 414: prevtime = kth->ktr_time;
415: } else
416: temp = kth->ktr_time;
1.79 deraadt 417: printf("%lld.%06ld ", (long long)temp.tv_sec,
418: temp.tv_nsec / 1000);
1.1 deraadt 419: }
420: (void)printf("%s ", type);
421: }
422:
1.92 guenther 423: /*
424: * Base Formatters
425: */
426:
427: /* some syscalls have padding that shouldn't be shown */
428: static int
429: pad(long arg)
430: {
431: /* nothing printed */
432: return (1);
433: }
434:
435: /* a formatter that just saves the argument for the next formatter */
436: int arg1;
437: static int
438: pass_two(long arg)
439: {
440: arg1 = (int)arg;
441:
442: /* nothing printed */
443: return (1);
444: }
445:
446: static int
447: pdeclong(long arg)
448: {
449: (void)printf("%ld", arg);
450: return (0);
451: }
452:
453: static int
454: pdeculong(long arg)
1.2 deraadt 455: {
1.92 guenther 456: (void)printf("%lu", arg);
457: return (0);
458: }
1.2 deraadt 459:
1.92 guenther 460: static int
461: phexlong(long arg)
462: {
463: (void)printf("%#lx", arg);
464: return (0);
465: }
1.2 deraadt 466:
1.92 guenther 467: static int
468: pnonfancy(long arg)
469: {
470: if (decimal)
471: (void)printf("%ld", arg);
1.2 deraadt 472: else
1.92 guenther 473: (void)printf("%#lx", arg);
474: return (0);
1.2 deraadt 475: }
1.1 deraadt 476:
1.52 otto 477: static void
1.92 guenther 478: pdecint(int arg)
1.52 otto 479: {
1.92 guenther 480: (void)printf("%d", arg);
1.52 otto 481: }
482:
483: static void
1.92 guenther 484: pdecuint(int arg)
1.52 otto 485: {
1.92 guenther 486: (void)printf("%u", arg);
1.52 otto 487: }
488:
489: static void
1.92 guenther 490: phexint(int arg)
1.52 otto 491: {
1.92 guenther 492: (void)printf("%#x", arg);
1.52 otto 493: }
1.92 guenther 494:
1.52 otto 495: static void
1.92 guenther 496: poctint(int arg)
497: {
498: (void)printf("%#o", arg);
499: }
500:
501:
502: #ifdef __LP64__
503:
504: /* on LP64, long long arguments are the same as long arguments */
505: #define Phexlonglong Phexlong
506: #define phexll NULL /* not actually used on LP64 */
507:
508: #else /* __LP64__ */
509:
510: /* on ILP32, long long arguments are passed as two 32bit args */
511: #define Phexlonglong PASS_LONGLONG, Phexll
512:
513: static int
514: phexll(long arg2)
1.52 otto 515: {
1.92 guenther 516: long long val;
517:
518: #if _BYTE_ORDER == _LITTLE_ENDIAN
519: val = ((long long)arg2 << 32) | ((long long)arg1 & 0xffffffff);
520: #else
521: val = ((long long)arg1 << 32) | ((long long)arg2 & 0xffffffff);
522: #endif
523:
524: if (fancy || !decimal)
525: (void)printf("%#llx", val);
526: else
1.52 otto 527: (void)printf("%lld", val);
1.92 guenther 528: return (0);
1.52 otto 529: }
1.92 guenther 530:
531: #endif /* __LP64__ */
532:
533: static int (*long_formatters[])(long) = {
534: NULL,
535: pdeclong,
536: pdeculong,
537: phexlong,
538: pass_two,
539: pass_two,
540: phexll,
541: pad,
542: pnonfancy,
543: };
544:
545: static void (*formatters[])(int) = {
546: NULL,
547: pdecint,
548: phexint,
549: poctint,
550: pdecuint,
551: ioctldecode,
552: ptracedecode,
553: atfd,
554: polltimeout,
555: wait4pid,
556: signame,
557: semctlname,
558: shmctlname,
559: semgetname,
560: flagsandmodename,
561: clockname,
562: sockoptlevelname,
563: ktraceopname,
564: fcntlcmdname,
565: modename,
566: flagsname,
567: openflagsname,
568: atflagsname,
569: accessmodename,
570: mmapprotname,
571: mmapflagsname,
572: wait4optname,
573: sendrecvflagsname,
574: mountflagsname,
575: rebootoptname,
576: flockname,
577: sockoptname,
578: sockipprotoname,
579: socktypename,
580: sockflagsname,
581: sockfamilyname,
582: mlockallname,
583: shmatname,
584: whencename,
585: pathconfname,
586: rlimitname,
587: shutdownhowname,
588: prioname,
589: madvisebehavname,
590: msyncflagsname,
591: clocktypename,
592: rusagewho,
593: sigactionflagname,
594: sigprocmaskhowname,
595: minheritname,
596: quotactlname,
597: sigill_name,
598: sigtrap_name,
599: sigemt_name,
600: sigfpe_name,
601: sigbus_name,
602: sigsegv_name,
603: sigchld_name,
604: ktracefacname,
605: itimername,
606: sigset,
1.94 guenther 607: uidname,
608: gidname,
1.92 guenther 609: };
610:
611: enum {
612: /* the end of the (known) arguments is recognized by the zero fill */
613: end_of_args = 0,
614:
615: /* negative are the negative of the index into long_formatters[] */
616: Pdeclong = -1,
617: Pdeculong = -2,
618: Phexlong = -3,
619: PASS_TWO = -4,
620:
621: /* the remaining long formatters still get called when non-fancy (-n option) */
622: #define FMT_IS_NONFANCY(x) ((x) <= PASS_LONGLONG)
623: PASS_LONGLONG = -5,
624: Phexll = -6,
625: PAD = -7,
626: Pnonfancy = -8,
627:
628: /* positive values are the index into formatters[] */
629: Pdecint = 1,
630: Phexint,
631: Poctint,
632: Pdecuint,
633: Ioctldecode,
634: Ptracedecode,
635: Atfd,
636: Polltimeout,
637: Wait4pid,
638: Signame,
639: Semctlname,
640: Shmctlname,
641: Semgetname,
642: Flagsandmodename,
643: Clockname,
644: Sockoptlevelname,
645: Ktraceopname,
646: Fcntlcmdname,
647: Modename,
648: Flagsname,
649: Openflagsname,
650: Atflagsname,
651: Accessmodename,
652: Mmapprotname,
653: Mmapflagsname,
654: Wait4optname,
655: Sendrecvflagsname,
656: Mountflagsname,
657: Rebootoptname,
658: Flockname,
659: Sockoptname,
660: Sockipprotoname,
661: Socktypename,
662: Sockflagsname,
663: Sockfamilyname,
664: Mlockallname,
665: Shmatname,
666: Whencename,
667: Pathconfname,
668: Rlimitname,
669: Shutdownhowname,
670: Prioname,
671: Madvisebehavname,
672: Msyncflagsname,
673: Clocktypename,
674: Rusagewho,
675: Sigactionflagname,
676: Sigprocmaskhowname,
677: Minheritname,
678: Quotactlname,
679: Sigill_name,
680: Sigtrap_name,
681: Sigemt_name,
682: Sigfpe_name,
683: Sigbus_name,
684: Sigsegv_name,
685: Sigchld_name,
686: Ktracefacname,
687: Itimername,
688: Sigset,
1.94 guenther 689: Uidname,
690: Gidname,
1.92 guenther 691: };
692:
693: #define Pptr Phexlong
694: #define Psize Pdeculong /* size_t for small buffers */
695: #define Pbigsize Phexlong /* size_t for I/O buffers */
696: #define Pcount Pdecint /* int for a count of something */
697: #define Pfd Pdecint
698: #define Ppath Phexlong
699: #define Pdev_t Pdecint
700: #define Ppid_t Pdecint
701: #define Ppgid Pdecint /* pid or negative pgid */
702: #define Poff_t Phexlonglong
703: #define Pmsqid Pdecint
704: #define Pshmid Pdecint
705: #define Psemid Pdecint
706: #define Pkey_t Pdecint
707: #define Pucount Pdecuint
708: #define Chflagsname Phexlong /* to be added */
709: #define Sockprotoname Phexlong /* to be added */
710: #define Swapctlname Phexlong /* to be added */
711: #define Msgflgname Phexlong /* to be added */
712:
713:
714: typedef signed char formatter;
715: static const formatter scargs[][8] = {
716: [SYS_exit] = { Pdecint },
717: [SYS_read] = { Pfd, Pptr, Pbigsize },
718: [SYS_write] = { Pfd, Pptr, Pbigsize },
719: [SYS_open] = { Ppath, PASS_TWO, Flagsandmodename },
720: [SYS_close] = { Pfd },
721: [SYS_getentropy] = { Pptr, Psize },
722: [SYS___tfork] = { Pptr, Psize },
723: [SYS_link] = { Ppath, Ppath },
724: [SYS_unlink] = { Ppath },
725: [SYS_wait4] = { Wait4pid, Pptr, Wait4optname },
726: [SYS_chdir] = { Ppath },
727: [SYS_fchdir] = { Pfd },
728: [SYS_mknod] = { Ppath, Modename, Pdev_t },
729: [SYS_chmod] = { Ppath, Modename },
1.94 guenther 730: [SYS_chown] = { Ppath, Uidname, Gidname },
1.92 guenther 731: [SYS_break] = { Pptr },
732: [SYS_getrusage] = { Rusagewho, Pptr },
733: [SYS_mount] = { Pptr, Ppath, Mountflagsname, Pptr },
734: [SYS_unmount] = { Ppath, Mountflagsname },
1.94 guenther 735: [SYS_setuid] = { Uidname },
1.92 guenther 736: [SYS_ptrace] = { Ptracedecode, Ppid_t, Pptr, Pdecint },
737: [SYS_recvmsg] = { Pfd, Pptr, Sendrecvflagsname },
738: [SYS_sendmsg] = { Pfd, Pptr, Sendrecvflagsname },
739: [SYS_recvfrom] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
740: [SYS_accept] = { Pfd, Pptr, Pptr },
741: [SYS_getpeername] = { Pfd, Pptr, Pptr },
742: [SYS_getsockname] = { Pfd, Pptr, Pptr },
743: [SYS_access] = { Ppath, Accessmodename },
744: [SYS_chflags] = { Ppath, Chflagsname },
745: [SYS_fchflags] = { Pfd, Chflagsname },
746: [SYS_kill] = { Ppgid, Signame },
747: [SYS_stat] = { Ppath, Pptr },
748: [SYS_lstat] = { Ppath, Pptr },
749: [SYS_dup] = { Pfd },
750: [SYS_fstatat] = { Atfd, Ppath, Pptr, Atflagsname },
751: [SYS_profil] = { Pptr, Pbigsize, Pbigsize, Pdecuint },
752: [SYS_ktrace] = { Ppath, Ktraceopname, Ktracefacname, Ppgid },
753: [SYS_sigaction] = { Signame, Pptr, Pptr },
754: [SYS_sigprocmask] = { Sigprocmaskhowname, Sigset },
755: [SYS_getlogin] = { Pptr, Pucount },
756: [SYS_setlogin] = { Pptr },
757: [SYS_acct] = { Ppath },
758: [SYS_fstat] = { Pfd, Pptr },
759: [SYS_ioctl] = { Pfd, Ioctldecode, Pptr },
760: [SYS_reboot] = { Rebootoptname },
761: [SYS_revoke] = { Ppath },
762: [SYS_symlink] = { Ppath, Ppath },
763: [SYS_readlink] = { Ppath, Pptr, Psize },
764: [SYS_execve] = { Ppath, Pptr, Pptr },
765: [SYS_umask] = { Modename },
766: [SYS_chroot] = { Ppath },
767: [SYS_getfsstat] = { Pptr, Pbigsize, Mountflagsname },
768: [SYS_statfs] = { Ppath, Pptr },
769: [SYS_fstatfs] = { Pfd, Pptr },
770: [SYS_fhstatfs] = { Pptr, Pptr },
771: [SYS_gettimeofday] = { Pptr, Pptr },
772: [SYS_settimeofday] = { Pptr, Pptr },
773: [SYS_setitimer] = { Itimername, Pptr, Pptr },
774: [SYS_getitimer] = { Itimername, Pptr },
775: [SYS_select] = { Pcount, Pptr, Pptr, Pptr, Pptr },
776: [SYS_kevent] = { Pfd, Pptr, Pcount, Pptr, Pcount, Pptr },
777: [SYS_munmap] = { Pptr, Pbigsize },
778: [SYS_mprotect] = { Pptr, Pbigsize, Mmapprotname },
779: [SYS_madvise] = { Pptr, Pbigsize, Madvisebehavname },
780: [SYS_utimes] = { Ppath, Pptr },
781: [SYS_futimes] = { Pfd, Pptr },
782: [SYS_mincore] = { Pptr, Pbigsize, Pptr },
783: [SYS_getgroups] = { Pcount, Pptr },
784: [SYS_setgroups] = { Pcount, Pptr },
785: [SYS_setpgid] = { Ppid_t, Ppid_t },
786: [SYS_sendsyslog] = { Pptr, Psize },
787: [SYS_utimensat] = { Atfd, Ppath, Pptr, Atflagsname },
788: [SYS_futimens] = { Pfd, Pptr },
789: [SYS_clock_gettime] = { Clockname, Pptr },
790: [SYS_clock_settime] = { Clockname, Pptr },
791: [SYS_clock_getres] = { Clockname, Pptr },
792: [SYS_dup2] = { Pfd, Pfd },
793: [SYS_nanosleep] = { Pptr, Pptr },
794: [SYS_fcntl] = { Pfd, PASS_TWO, Fcntlcmdname },
795: [SYS_accept4] = { Pfd, Pptr, Pptr, Sockflagsname },
796: [SYS___thrsleep] = { Pptr, Clockname, Pptr, Pptr, Pptr },
797: [SYS_fsync] = { Pfd },
798: [SYS_setpriority] = { Prioname, Ppid_t, Pdecint },
1.99 guenther 799: [SYS_socket] = { Sockfamilyname, Socktypename, Sockprotoname },
1.92 guenther 800: [SYS_connect] = { Pfd, Pptr, Pucount },
801: [SYS_getdents] = { Pfd, Pptr, Pbigsize },
802: [SYS_getpriority] = { Prioname, Ppid_t },
803: [SYS_pipe2] = { Pptr, Flagsname },
804: [SYS_dup3] = { Pfd, Pfd, Flagsname },
805: [SYS_sigreturn] = { Pptr },
806: [SYS_bind] = { Pfd, Pptr, Pucount },
807: [SYS_setsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pdecint },
808: [SYS_listen] = { Pfd, Pdecint },
809: [SYS_chflagsat] = { Atfd, Ppath, Chflagsname, Atflagsname },
810: [SYS_ppoll] = { Pptr, Pucount, Pptr, Pptr },
811: [SYS_pselect] = { Pcount, Pptr, Pptr, Pptr, Pptr, Pptr },
812: [SYS_sigsuspend] = { Sigset },
813: [SYS_getsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pptr },
814: [SYS_readv] = { Pfd, Pptr, Pcount },
815: [SYS_writev] = { Pfd, Pptr, Pcount },
1.94 guenther 816: [SYS_fchown] = { Pfd, Uidname, Gidname },
1.92 guenther 817: [SYS_fchmod] = { Pfd, Modename },
1.94 guenther 818: [SYS_setreuid] = { Uidname, Uidname },
819: [SYS_setregid] = { Gidname, Gidname },
1.92 guenther 820: [SYS_rename] = { Ppath, Ppath },
821: [SYS_flock] = { Pfd, Flockname },
822: [SYS_mkfifo] = { Ppath, Modename },
823: [SYS_sendto] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
824: [SYS_shutdown] = { Pfd, Shutdownhowname },
1.99 guenther 825: [SYS_socketpair] = { Sockfamilyname, Socktypename, Sockprotoname, Pptr },
1.92 guenther 826: [SYS_mkdir] = { Ppath, Modename },
827: [SYS_rmdir] = { Ppath },
828: [SYS_adjtime] = { Pptr, Pptr },
1.94 guenther 829: [SYS_quotactl] = { Ppath, Quotactlname, Uidname, Pptr },
1.92 guenther 830: [SYS_nfssvc] = { Phexint, Pptr },
831: [SYS_getfh] = { Ppath, Pptr },
832: [SYS_sysarch] = { Pdecint, Pptr },
833: [SYS_pread] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
834: [SYS_pwrite] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
1.94 guenther 835: [SYS_setgid] = { Gidname },
836: [SYS_setegid] = { Gidname },
837: [SYS_seteuid] = { Uidname },
1.92 guenther 838: [SYS_pathconf] = { Ppath, Pathconfname },
839: [SYS_fpathconf] = { Pfd, Pathconfname },
840: [SYS_swapctl] = { Swapctlname, Pptr, Pdecint },
841: [SYS_getrlimit] = { Rlimitname, Pptr },
842: [SYS_setrlimit] = { Rlimitname, Pptr },
843: [SYS_mmap] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
844: [SYS_lseek] = { Pfd, PAD, Poff_t, Whencename },
845: [SYS_truncate] = { Ppath, PAD, Poff_t },
846: [SYS_ftruncate] = { Pfd, PAD, Poff_t },
1.105 guenther 847: /* [SYS_sysctl] = { }, Magic */
1.92 guenther 848: [SYS_mlock] = { Pptr, Pbigsize },
849: [SYS_munlock] = { Pptr, Pbigsize },
850: [SYS_getpgid] = { Ppid_t },
851: [SYS_utrace] = { Pptr, Pptr, Psize },
852: [SYS_semget] = { Pkey_t, Pcount, Semgetname },
853: [SYS_msgget] = { Pkey_t, Msgflgname },
854: [SYS_msgsnd] = { Pmsqid, Pptr, Psize, Msgflgname },
855: [SYS_msgrcv] = { Pmsqid, Pptr, Psize, Pdeclong, Msgflgname },
856: [SYS_shmat] = { Pshmid, Pptr, Shmatname },
857: [SYS_shmdt] = { Pptr },
858: [SYS_minherit] = { Pptr, Pbigsize, Minheritname },
859: [SYS_poll] = { Pptr, Pucount, Polltimeout },
1.94 guenther 860: [SYS_lchown] = { Ppath, Uidname, Gidname },
1.92 guenther 861: [SYS_getsid] = { Ppid_t },
862: [SYS_msync] = { Pptr, Pbigsize, Msyncflagsname },
863: [SYS_pipe] = { Pptr },
864: [SYS_fhopen] = { Pptr, Openflagsname },
865: [SYS_preadv] = { Pfd, Pptr, Pcount, PAD, Poff_t },
866: [SYS_pwritev] = { Pfd, Pptr, Pcount, PAD, Poff_t },
867: [SYS_mlockall] = { Mlockallname },
868: [SYS_getresuid] = { Pptr, Pptr, Pptr },
1.94 guenther 869: [SYS_setresuid] = { Uidname, Uidname, Uidname },
1.92 guenther 870: [SYS_getresgid] = { Pptr, Pptr, Pptr },
1.94 guenther 871: [SYS_setresgid] = { Gidname, Gidname, Gidname },
1.92 guenther 872: [SYS_mquery] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
873: [SYS_closefrom] = { Pfd },
874: [SYS_sigaltstack] = { Pptr, Pptr },
875: [SYS_shmget] = { Pkey_t, Pbigsize, Semgetname },
876: [SYS_semop] = { Psemid, Pptr, Psize },
877: [SYS_fhstat] = { Pptr, Pptr },
878: [SYS___semctl] = { Psemid, Pcount, Semctlname, Pptr },
879: [SYS_shmctl] = { Pshmid, Shmctlname, Pptr },
880: [SYS_msgctl] = { Pmsqid, Shmctlname, Pptr },
881: [SYS___thrwakeup] = { Pptr, Pcount },
882: [SYS___threxit] = { Pptr },
883: [SYS___thrsigdivert] = { Sigset, Pptr, Pptr },
884: [SYS___getcwd] = { Pptr, Psize },
885: [SYS_adjfreq] = { Pptr, Pptr },
886: [SYS_setrtable] = { Pdecint },
887: [SYS_faccessat] = { Atfd, Ppath, Accessmodename, Atflagsname },
888: [SYS_fchmodat] = { Atfd, Ppath, Modename, Atflagsname },
1.94 guenther 889: [SYS_fchownat] = { Atfd, Ppath, Uidname, Gidname, Atflagsname },
1.92 guenther 890: [SYS_linkat] = { Atfd, Ppath, Atfd, Ppath, Atflagsname },
891: [SYS_mkdirat] = { Atfd, Ppath, Modename },
892: [SYS_mkfifoat] = { Atfd, Ppath, Modename },
893: [SYS_mknodat] = { Atfd, Ppath, Modename, Pdev_t },
894: [SYS_openat] = { Atfd, Ppath, PASS_TWO, Flagsandmodename },
895: [SYS_readlinkat] = { Atfd, Ppath, Pptr, Psize },
896: [SYS_renameat] = { Atfd, Ppath, Atfd, Ppath },
1.98 guenther 897: [SYS_symlinkat] = { Ppath, Atfd, Ppath },
1.92 guenther 898: [SYS_unlinkat] = { Atfd, Ppath, Atflagsname },
899: [SYS___set_tcb] = { Pptr },
900: };
901:
1.51 otto 902:
1.12 espie 903: static void
1.93 jsg 904: ktrsyscall(struct ktr_syscall *ktr, size_t ktrlen)
1.1 deraadt 905: {
1.92 guenther 906: register_t *ap;
907: int narg;
908: char sep;
909:
1.93 jsg 910: if (ktr->ktr_argsize > ktrlen)
911: errx(1, "syscall argument length %d > ktr header length %zu",
912: ktr->ktr_argsize, ktrlen);
913:
1.52 otto 914: narg = ktr->ktr_argsize / sizeof(register_t);
915: sep = '\0';
1.1 deraadt 916:
917: if (ktr->ktr_code >= current->nsysnames || ktr->ktr_code < 0)
918: (void)printf("[%d]", ktr->ktr_code);
919: else
920: (void)printf("%s", current->sysnames[ktr->ktr_code]);
921: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 922: (void)putchar('(');
1.52 otto 923:
1.54 otto 924: if (current != &emulations[0])
925: goto nonnative;
926:
1.105 guenther 927: if (ktr->ktr_code == SYS_sysctl) {
1.62 otto 928: const char *s;
1.94 guenther 929: int n, i, *top;
1.52 otto 930:
931: if (!fancy)
1.92 guenther 932: goto nonnative;
1.52 otto 933: n = ap[1];
934: if (n > CTL_MAXNAME)
935: n = CTL_MAXNAME;
1.93 jsg 936: if (n < 0)
937: errx(1, "invalid sysctl length %d", n);
1.94 guenther 938: if (n > 0) {
939: top = (int *)(ap + 6);
940: printf("%d", top[0]);
941: for (i = 1; i < n; i++)
942: printf(".%d", top[i]);
943: if ((s = kresolvsysctl(0, top)) != NULL) {
944: printf("<%s", s);
945: for (i = 1; i < n; i++) {
946: if ((s = kresolvsysctl(i, top)) != NULL)
947: printf(".%s", s);
948: else
949: printf(".%d", top[i]);
950: }
951: putchar('>');
952: }
1.1 deraadt 953: }
1.52 otto 954:
955: sep = ',';
956: ap += 2;
957: narg -= 2;
1.92 guenther 958: } else if (ktr->ktr_code < nitems(scargs)) {
959: const formatter *fmts = scargs[ktr->ktr_code];
960: int fmt;
1.52 otto 961:
1.92 guenther 962: while (narg && (fmt = *fmts) != 0) {
963: if (sep)
964: putchar(sep);
965: sep = ',';
966: if (!fancy && !FMT_IS_NONFANCY(fmt))
967: fmt = Pnonfancy;
968: if (fmt > 0)
969: formatters[fmt]((int)*ap);
970: else if (long_formatters[-fmt](*ap))
971: sep = '\0';
972: fmts++;
973: ap++;
974: narg--;
975: }
1.52 otto 976: }
977:
1.54 otto 978: nonnative:
1.93 jsg 979: while (narg > 0) {
1.52 otto 980: if (sep)
981: putchar(sep);
982: if (decimal)
983: (void)printf("%ld", (long)*ap);
984: else
985: (void)printf("%#lx", (long)*ap);
986: sep = ',';
987: ap++;
988: narg--;
1.1 deraadt 989: }
1.27 mickey 990: (void)printf(")\n");
1.62 otto 991: }
992:
993: static struct ctlname topname[] = CTL_NAMES;
994: static struct ctlname kernname[] = CTL_KERN_NAMES;
995: static struct ctlname vmname[] = CTL_VM_NAMES;
996: static struct ctlname fsname[] = CTL_FS_NAMES;
997: static struct ctlname netname[] = CTL_NET_NAMES;
998: static struct ctlname hwname[] = CTL_HW_NAMES;
999: static struct ctlname debugname[CTL_DEBUG_MAXID];
1000: static struct ctlname kernmallocname[] = CTL_KERN_MALLOC_NAMES;
1001: static struct ctlname forkstatname[] = CTL_KERN_FORKSTAT_NAMES;
1002: static struct ctlname nchstatsname[] = CTL_KERN_NCHSTATS_NAMES;
1.88 guenther 1003: static struct ctlname kernprocname[] = {
1.64 guenther 1004: { NULL },
1005: { "all" },
1006: { "pid" },
1007: { "pgrp" },
1008: { "session" },
1009: { "tty" },
1010: { "uid" },
1011: { "ruid" },
1.77 guenther 1012: { "kthread" },
1.64 guenther 1013: };
1.62 otto 1014: static struct ctlname ttysname[] = CTL_KERN_TTY_NAMES;
1015: static struct ctlname semname[] = CTL_KERN_SEMINFO_NAMES;
1016: static struct ctlname shmname[] = CTL_KERN_SHMINFO_NAMES;
1017: static struct ctlname watchdogname[] = CTL_KERN_WATCHDOG_NAMES;
1018: static struct ctlname tcname[] = CTL_KERN_TIMECOUNTER_NAMES;
1019: #ifdef CTL_MACHDEP_NAMES
1020: static struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
1021: #endif
1022: static struct ctlname ddbname[] = CTL_DDB_NAMES;
1023:
1024: #ifndef nitems
1025: #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
1026: #endif
1027:
1028: #define SETNAME(name) do { names = (name); limit = nitems(name); } while (0)
1029:
1030: static const char *
1.94 guenther 1031: kresolvsysctl(int depth, const int *top)
1.62 otto 1032: {
1033: struct ctlname *names;
1034: size_t limit;
1.94 guenther 1035: int idx = top[depth];
1.62 otto 1036:
1037: names = NULL;
1038:
1039: switch (depth) {
1040: case 0:
1041: SETNAME(topname);
1042: break;
1043: case 1:
1044: switch (top[0]) {
1045: case CTL_KERN:
1046: SETNAME(kernname);
1047: break;
1048: case CTL_VM:
1049: SETNAME(vmname);
1050: break;
1051: case CTL_FS:
1052: SETNAME(fsname);
1053: break;
1054: case CTL_NET:
1055: SETNAME(netname);
1056: break;
1057: case CTL_DEBUG:
1058: SETNAME(debugname);
1059: break;
1060: case CTL_HW:
1061: SETNAME(hwname);
1062: break;
1063: #ifdef CTL_MACHDEP_NAMES
1064: case CTL_MACHDEP:
1065: SETNAME(machdepname);
1066: break;
1067: #endif
1068: case CTL_DDB:
1069: SETNAME(ddbname);
1070: break;
1071: }
1072: break;
1073: case 2:
1074: switch (top[0]) {
1075: case CTL_KERN:
1076: switch (top[1]) {
1077: case KERN_MALLOCSTATS:
1078: SETNAME(kernmallocname);
1079: break;
1080: case KERN_FORKSTAT:
1081: SETNAME(forkstatname);
1082: break;
1083: case KERN_NCHSTATS:
1084: SETNAME(nchstatsname);
1085: break;
1086: case KERN_TTY:
1087: SETNAME(ttysname);
1088: break;
1089: case KERN_SEMINFO:
1090: SETNAME(semname);
1091: break;
1092: case KERN_SHMINFO:
1093: SETNAME(shmname);
1094: break;
1095: case KERN_WATCHDOG:
1096: SETNAME(watchdogname);
1097: break;
1.64 guenther 1098: case KERN_PROC:
1099: idx++; /* zero is valid at this level */
1100: SETNAME(kernprocname);
1101: break;
1.62 otto 1102: case KERN_TIMECOUNTER:
1103: SETNAME(tcname);
1104: break;
1105: }
1106: }
1107: break;
1108: }
1109: if (names != NULL && idx > 0 && idx < limit)
1110: return (names[idx].ctl_name);
1111: return (NULL);
1.1 deraadt 1112: }
1113:
1.12 espie 1114: static void
1.103 guenther 1115: ktrsysret(struct ktr_sysret *ktr, size_t ktrlen)
1.1 deraadt 1116: {
1.103 guenther 1117: register_t ret = 0;
1118: long long retll;
1.12 espie 1119: int error = ktr->ktr_error;
1120: int code = ktr->ktr_code;
1.1 deraadt 1121:
1.103 guenther 1122: if (ktrlen < sizeof(*ktr))
1123: errx(1, "sysret length %zu < ktr header length %zu",
1124: ktrlen, sizeof(*ktr));
1125: ktrlen -= sizeof(*ktr);
1126: if (error == 0) {
1127: if (ktrlen == sizeof(ret)) {
1128: memcpy(&ret, ktr+1, sizeof(ret));
1129: retll = ret;
1130: } else if (ktrlen == sizeof(retll))
1131: memcpy(&retll, ktr+1, sizeof(retll));
1132: else
1133: errx(1, "sysret bogus length %zu", ktrlen);
1134: }
1135:
1.1 deraadt 1136: if (code >= current->nsysnames || code < 0)
1137: (void)printf("[%d] ", code);
1.59 otto 1138: else {
1.1 deraadt 1139: (void)printf("%s ", current->sysnames[code]);
1.103 guenther 1140: if (error == 0 && ret > 0 &&
1141: (strcmp(current->sysnames[code], "fork") == 0 ||
1.59 otto 1142: strcmp(current->sysnames[code], "vfork") == 0 ||
1.64 guenther 1143: strcmp(current->sysnames[code], "__tfork") == 0 ||
1.59 otto 1144: strcmp(current->sysnames[code], "clone") == 0))
1145: mappidtoemul(ret, current);
1146: }
1.1 deraadt 1147:
1148: if (error == 0) {
1149: if (fancy) {
1.64 guenther 1150: switch (current == &emulations[0] ? code : -1) {
1.103 guenther 1151: case SYS_lseek:
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;
1171: case -1: /* non-default emulation */
1172: default:
1173: (void)printf("%ld", (long)ret);
1174: if (ret < 0 || ret > 9)
1175: (void)printf("/%#lx", (long)ret);
1176: }
1.1 deraadt 1177: } else {
1178: if (decimal)
1.103 guenther 1179: (void)printf("%lld", retll);
1.1 deraadt 1180: else
1.103 guenther 1181: (void)printf("%#llx", retll);
1.1 deraadt 1182: }
1183: } else if (error == ERESTART)
1184: (void)printf("RESTART");
1185: else if (error == EJUSTRETURN)
1186: (void)printf("JUSTRETURN");
1187: else {
1188: (void)printf("-1 errno %d", ktr->ktr_error);
1189: if (fancy)
1190: (void)printf(" %s", strerror(ktr->ktr_error));
1191: }
1192: (void)putchar('\n');
1193: }
1194:
1.12 espie 1195: static void
1.37 tedu 1196: ktrnamei(const char *cp, size_t len)
1.1 deraadt 1197: {
1.37 tedu 1198: (void)printf("\"%.*s\"\n", (int)len, cp);
1.1 deraadt 1199: }
1200:
1.12 espie 1201: static void
1.37 tedu 1202: ktremul(char *cp, size_t len)
1.1 deraadt 1203: {
1204: char name[1024];
1205:
1206: if (len >= sizeof(name))
1207: errx(1, "Emulation name too long");
1208:
1209: strncpy(name, cp, len);
1210: name[len] = '\0';
1211: (void)printf("\"%s\"\n", name);
1212:
1213: setemul(name);
1214: }
1215:
1.12 espie 1216: static void
1.106 guenther 1217: showbufc(const char *prefix, unsigned char *dp, size_t datalen)
1218: {
1219: int i, j;
1220: int col, width, bpl;
1221: unsigned char visbuf[5], *cp, c;
1222:
1223: (void)printf(" ");
1224:
1225: col = 8;
1226: if (prefix != NULL) {
1227: printf("%s", prefix);
1228: col += strlen(prefix);
1229: }
1230:
1231: putchar('"');
1232: for (; datalen > 0; datalen--, dp++) {
1233: (void)vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1234: cp = visbuf;
1235:
1236: /*
1237: * Keep track of printables and
1238: * space chars (like fold(1)).
1239: */
1240: if (col == 0) {
1241: (void)putchar('\t');
1242: col = 8;
1243: }
1244: switch (*cp) {
1245: case '\n':
1246: col = 0;
1247: (void)putchar('\n');
1248: continue;
1249: case '\t':
1250: width = 8 - (col&07);
1251: break;
1252: default:
1253: width = strlen(cp);
1254: }
1255: if (col + width > (screenwidth-2)) {
1256: (void)printf("\\\n\t");
1257: col = 8;
1258: }
1259: col += width;
1260: do {
1261: (void)putchar(*cp++);
1262: } while (*cp);
1263: }
1264: if (col == 0)
1265: (void)printf(" ");
1266: (void)printf("\"\n");
1267: }
1268:
1269: static void
1.81 miod 1270: showbuf(unsigned char *dp, size_t datalen)
1.1 deraadt 1271: {
1.37 tedu 1272: int i, j;
1.31 tedu 1273: int col = 0, width, bpl;
1.32 tedu 1274: unsigned char visbuf[5], *cp, c;
1.1 deraadt 1275:
1.31 tedu 1276: if (iohex == 1) {
1277: putchar('\t');
1278: col = 8;
1279: for (i = 0; i < datalen; i++) {
1.35 tedu 1280: printf("%02x", dp[i]);
1.31 tedu 1281: col += 3;
1282: if (i < datalen - 1) {
1283: if (col + 3 > screenwidth) {
1284: printf("\n\t");
1285: col = 8;
1286: } else
1287: putchar(' ');
1288: }
1289: }
1290: putchar('\n');
1291: return;
1292: }
1293: if (iohex == 2) {
1294: bpl = (screenwidth - 13)/4;
1295: if (bpl <= 0)
1296: bpl = 1;
1297: for (i = 0; i < datalen; i += bpl) {
1298: printf(" %04x: ", i);
1299: for (j = 0; j < bpl; j++) {
1300: if (i+j >= datalen)
1301: printf(" ");
1302: else
1.35 tedu 1303: printf("%02x ", dp[i+j]);
1.31 tedu 1304: }
1305: putchar(' ');
1306: for (j = 0; j < bpl; j++) {
1307: if (i+j >= datalen)
1308: break;
1309: c = dp[i+j];
1310: if (!isprint(c))
1311: c = '.';
1312: putchar(c);
1313: }
1314: putchar('\n');
1315: }
1316: return;
1317: }
1.106 guenther 1318: showbufc(NULL, dp, datalen);
1.1 deraadt 1319: }
1320:
1.12 espie 1321: static void
1.81 miod 1322: ktrgenio(struct ktr_genio *ktr, size_t len)
1323: {
1324: unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
1.93 jsg 1325: size_t datalen;
1326:
1327: if (len < sizeof(struct ktr_genio))
1328: errx(1, "invalid ktr genio length %zu", len);
1329:
1330: datalen = len - sizeof(struct ktr_genio);
1.81 miod 1331:
1332: printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
1333: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
1334: if (maxdata == 0)
1335: return;
1336: if (datalen > maxdata)
1337: datalen = maxdata;
1338: if (iohex && !datalen)
1339: return;
1340: showbuf(dp, datalen);
1341: }
1342:
1343: static void
1.17 deraadt 1344: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 1345: {
1.93 jsg 1346: signame(psig->signo);
1.96 bluhm 1347: printf(" ");
1.1 deraadt 1348: if (psig->action == SIG_DFL)
1.63 deraadt 1349: (void)printf("SIG_DFL");
1.64 guenther 1350: else {
1351: (void)printf("caught handler=0x%lx mask=",
1352: (u_long)psig->action);
1353: sigset(psig->mask);
1354: }
1.63 deraadt 1355: if (psig->code) {
1356: printf(" code ");
1357: if (fancy) {
1358: switch (psig->signo) {
1359: case SIGILL:
1360: sigill_name(psig->code);
1361: break;
1362: case SIGTRAP:
1363: sigtrap_name(psig->code);
1364: break;
1365: case SIGEMT:
1366: sigemt_name(psig->code);
1367: break;
1368: case SIGFPE:
1369: sigfpe_name(psig->code);
1370: break;
1371: case SIGBUS:
1372: sigbus_name(psig->code);
1373: break;
1374: case SIGSEGV:
1375: sigsegv_name(psig->code);
1376: break;
1377: case SIGCHLD:
1378: sigchld_name(psig->code);
1379: break;
1380: }
1381: }
1382: printf("<%d>", psig->code);
1383: }
1384:
1.14 deraadt 1385: switch (psig->signo) {
1386: case SIGSEGV:
1387: case SIGILL:
1388: case SIGBUS:
1389: case SIGFPE:
1390: printf(" addr=%p trapno=%d", psig->si.si_addr,
1391: psig->si.si_trapno);
1392: break;
1393: default:
1394: break;
1395: }
1396: printf("\n");
1.1 deraadt 1397: }
1398:
1.64 guenther 1399: static void
1.81 miod 1400: ktruser(struct ktr_user *usr, size_t len)
1401: {
1.93 jsg 1402: if (len < sizeof(struct ktr_user))
1403: errx(1, "invalid ktr user length %zu", len);
1.81 miod 1404: len -= sizeof(struct ktr_user);
1405: printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
1406: printf(" %zu bytes\n", len);
1407: showbuf((unsigned char *)(usr + 1), len);
1.106 guenther 1408: }
1409:
1410: static void
1411: ktrexec(const char *ptr, size_t len)
1412: {
1413: char buf[sizeof("[2147483648] = ")];
1414: int i;
1415: size_t l;
1416:
1417: putchar('\n');
1418: i = 0;
1419: while (len > 0) {
1420: l = strnlen(ptr, len);
1421: snprintf(buf, sizeof(buf), "[%d] = ", i++);
1422: showbufc(buf, (unsigned char *)ptr, l);
1423: if (l == len) {
1424: printf("\tunterminated argument\n");
1425: break;
1426: }
1427: len -= l + 1;
1428: ptr += l + 1;
1429: }
1.81 miod 1430: }
1431:
1432: static void
1.17 deraadt 1433: usage(void)
1.1 deraadt 1434: {
1435:
1.19 mickey 1436: extern char *__progname;
1437: fprintf(stderr, "usage: %s "
1.95 jmc 1438: "[-dHlnRTXx] [-e emulation] [-f file] [-m maxdata] [-p pid]\n"
1.107 jmc 1439: "%*s[-t [ceinstuxX+]]\n",
1.51 otto 1440: __progname, (int)(sizeof("usage: ") + strlen(__progname)), "");
1.1 deraadt 1441: exit(1);
1442: }
1443:
1.12 espie 1444: static void
1.17 deraadt 1445: setemul(const char *name)
1.1 deraadt 1446: {
1447: int i;
1.17 deraadt 1448:
1.1 deraadt 1449: for (i = 0; emulations[i].name != NULL; i++)
1450: if (strcmp(emulations[i].name, name) == 0) {
1451: current = &emulations[i];
1452: return;
1453: }
1454: warnx("Emulation `%s' unknown", name);
1.61 matthew 1455: }
1456:
1.92 guenther 1457: /*
1458: * FORMATTERS
1459: */
1460:
1461: static void
1462: ioctldecode(int cmd)
1463: {
1464: char dirbuf[4], *dir = dirbuf;
1465: const char *cp;
1466:
1467: if ((cp = ioctlname((unsigned)cmd)) != NULL) {
1468: (void)printf("%s", cp);
1469: return;
1470: }
1471:
1472: if (cmd & IOC_IN)
1473: *dir++ = 'W';
1474: if (cmd & IOC_OUT)
1475: *dir++ = 'R';
1476: *dir = '\0';
1477:
1.109 zhuk 1478: printf("_IO%s('%c',%d",
1.92 guenther 1479: dirbuf, (int)((cmd >> 8) & 0xff), cmd & 0xff);
1480: if ((cmd & IOC_VOID) == 0)
1481: printf(decimal ? ",%u)" : ",%#x)", (cmd >> 16) & 0xff);
1482: else
1483: printf(")");
1484: }
1485:
1486: static void
1487: ptracedecode(int request)
1488: {
1489: if (request >= 0 && request < nitems(ptrace_ops))
1490: (void)printf("%s", ptrace_ops[request]);
1491: else switch(request) {
1492: #ifdef PT_GETFPREGS
1493: case PT_GETFPREGS:
1494: (void)printf("PT_GETFPREGS");
1495: break;
1496: #endif
1497: case PT_GETREGS:
1498: (void)printf("PT_GETREGS");
1499: break;
1500: #ifdef PT_GETXMMREGS
1501: case PT_GETXMMREGS:
1502: (void)printf("PT_GETXMMREGS");
1503: break;
1504: #endif
1505: #ifdef PT_SETFPREGS
1506: case PT_SETFPREGS:
1507: (void)printf("PT_SETFPREGS");
1508: break;
1509: #endif
1510: case PT_SETREGS:
1511: (void)printf("PT_SETREGS");
1512: break;
1513: #ifdef PT_SETXMMREGS
1514: case PT_SETXMMREGS:
1515: (void)printf("PT_SETXMMREGS");
1516: break;
1517: #endif
1518: #ifdef PT_STEP
1519: case PT_STEP:
1520: (void)printf("PT_STEP");
1521: break;
1522: #endif
1523: #ifdef PT_WCOOKIE
1524: case PT_WCOOKIE:
1525: (void)printf("PT_WCOOKIE");
1526: break;
1527: #endif
1528: default:
1529: pdecint(request);
1530: }
1531: }
1532:
1533:
1.61 matthew 1534: static void
1535: atfd(int fd)
1536: {
1537: if (fd == AT_FDCWD)
1538: (void)printf("AT_FDCWD");
1539: else
1.92 guenther 1540: pdecint(fd);
1.77 guenther 1541: }
1542:
1543: static void
1544: polltimeout(int timeout)
1545: {
1546: if (timeout == INFTIM)
1547: (void)printf("INFTIM");
1548: else
1.92 guenther 1549: pdecint(timeout);
1.82 guenther 1550: }
1551:
1552: static void
1553: wait4pid(int pid)
1554: {
1555: if (pid == WAIT_ANY)
1556: (void)printf("WAIT_ANY");
1557: else if (pid == WAIT_MYPGRP)
1558: (void)printf("WAIT_MYPGRP");
1559: else
1.92 guenther 1560: pdecint(pid); /* ppgid */
1.1 deraadt 1561: }
1.83 guenther 1562:
1563: static void
1564: signame(int sig)
1565: {
1566: if (sig > 0 && sig < NSIG)
1567: (void)printf("SIG%s", sys_signame[sig]);
1568: else
1569: (void)printf("SIG %d", sig);
1570: }
1571:
1.84 guenther 1572: void
1.83 guenther 1573: sigset(int ss)
1574: {
1575: int or = 0;
1576: int cnt = 0;
1577: int i;
1578:
1579: for (i = 1; i < NSIG; i++)
1580: if (sigismember(&ss, i))
1581: cnt++;
1582: if (cnt > (NSIG-1)/2) {
1583: ss = ~ss;
1584: putchar('~');
1585: }
1586:
1587: if (ss == 0) {
1588: (void)printf("0<>");
1589: return;
1590: }
1591:
1592: printf("%#x<", ss);
1593: for (i = 1; i < NSIG; i++)
1594: if (sigismember(&ss, i)) {
1595: if (or) putchar('|'); else or=1;
1596: signame(i);
1597: }
1598: printf(">");
1599: }
1600:
1601: static void
1602: semctlname(int cmd)
1603: {
1604: switch (cmd) {
1605: case GETNCNT:
1606: (void)printf("GETNCNT");
1607: break;
1608: case GETPID:
1609: (void)printf("GETPID");
1610: break;
1611: case GETVAL:
1612: (void)printf("GETVAL");
1613: break;
1614: case GETALL:
1615: (void)printf("GETALL");
1616: break;
1617: case GETZCNT:
1618: (void)printf("GETZCNT");
1619: break;
1620: case SETVAL:
1621: (void)printf("SETVAL");
1622: break;
1623: case SETALL:
1624: (void)printf("SETALL");
1625: break;
1626: case IPC_RMID:
1627: (void)printf("IPC_RMID");
1628: break;
1629: case IPC_SET:
1630: (void)printf("IPC_SET");
1631: break;
1632: case IPC_STAT:
1633: (void)printf("IPC_STAT");
1634: break;
1635: default: /* Should not reach */
1.92 guenther 1636: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1637: }
1638: }
1639:
1640: static void
1.88 guenther 1641: shmctlname(int cmd)
1642: {
1.83 guenther 1643: switch (cmd) {
1644: case IPC_RMID:
1645: (void)printf("IPC_RMID");
1646: break;
1647: case IPC_SET:
1648: (void)printf("IPC_SET");
1649: break;
1650: case IPC_STAT:
1651: (void)printf("IPC_STAT");
1652: break;
1653: default: /* Should not reach */
1.92 guenther 1654: (void)printf("<invalid=%d>", cmd);
1.83 guenther 1655: }
1656: }
1657:
1658:
1659: static void
1.88 guenther 1660: semgetname(int flag)
1661: {
1.83 guenther 1662: int or = 0;
1663: if_print_or(flag, IPC_CREAT, or);
1664: if_print_or(flag, IPC_EXCL, or);
1665: if_print_or(flag, SEM_R, or);
1666: if_print_or(flag, SEM_A, or);
1667: if_print_or(flag, (SEM_R>>3), or);
1668: if_print_or(flag, (SEM_A>>3), or);
1669: if_print_or(flag, (SEM_R>>6), or);
1670: if_print_or(flag, (SEM_A>>6), or);
1.92 guenther 1671:
1672: if (flag & ~(IPC_CREAT|IPC_EXCL|SEM_R|SEM_A|((SEM_R|SEM_A)>>3)|
1673: ((SEM_R|SEM_A)>>6)))
1674: printf("<invalid=%#x>", flag);
1.83 guenther 1675: }
1676:
1677:
1678: /*
1.92 guenther 1679: * Only used by SYS_open and SYS_openat. Unless O_CREAT is set in flags, the
1.83 guenther 1680: * mode argument is unused (and often bogus and misleading).
1681: */
1682: static void
1.92 guenther 1683: flagsandmodename(int mode)
1.88 guenther 1684: {
1.92 guenther 1685: openflagsname(arg1);
1686: if ((arg1 & O_CREAT) == O_CREAT) {
1.83 guenther 1687: (void)putchar(',');
1.92 guenther 1688: modename(mode);
1689: } else if (!fancy)
1690: (void)printf(",<unused>%#o", mode);
1.83 guenther 1691: }
1692:
1693: static void
1694: clockname(int clockid)
1695: {
1696: clocktypename(__CLOCK_TYPE(clockid));
1697: if (__CLOCK_PTID(clockid) != 0)
1698: printf("(%d)", __CLOCK_PTID(clockid));
1699: }
1700:
1701: /*
1702: * [g|s]etsockopt's level argument can either be SOL_SOCKET or a value
1.100 guenther 1703: * referring to a line in /etc/protocols.
1.83 guenther 1704: */
1705: static void
1.100 guenther 1706: sockoptlevelname(int optname)
1.83 guenther 1707: {
1.100 guenther 1708: struct protoent *pe;
1709:
1710: if (arg1 == SOL_SOCKET) {
1711: (void)printf("SOL_SOCKET,");
1712: sockoptname(optname);
1713: } else {
1714: pe = getprotobynumber(arg1);
1715: (void)printf("%u<%s>,%d", arg1,
1716: pe != NULL ? pe->p_name : "unknown", optname);
1717: }
1.83 guenther 1718: }
1719:
1.88 guenther 1720: static void
1721: ktraceopname(int ops)
1722: {
1723: int invalid = 0;
1724:
1725: printf("%#x<", ops);
1726: switch (KTROP(ops)) {
1727: case KTROP_SET:
1728: printf("KTROP_SET");
1729: break;
1730: case KTROP_CLEAR:
1731: printf("KTROP_CLEAR");
1732: break;
1733: case KTROP_CLEARFILE:
1734: printf("KTROP_CLEARFILE");
1735: break;
1736: default:
1737: printf("KTROP(%d)", KTROP(ops));
1738: invalid = 1;
1739: break;
1740: }
1.92 guenther 1741: if (ops & KTRFLAG_DESCEND) printf("|KTRFLAG_DESCEND");
1.88 guenther 1742: printf(">");
1743: if (invalid || (ops & ~(KTROP((unsigned)-1) | KTRFLAG_DESCEND)))
1.92 guenther 1744: (void)printf("<invalid>%d", ops);
1.88 guenther 1745: }