Annotation of src/usr.bin/kdump/kdump.c, Revision 1.116
1.116 ! deraadt 1: /* $OpenBSD: kdump.c,v 1.115 2015/10/10 20:35:00 deraadt Exp $ */
1.4 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1988, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.21 millert 15: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
1.97 deraadt 32: #include <sys/param.h> /* MAXCOMLEN nitems */
1.1 deraadt 33: #include <sys/time.h>
1.97 deraadt 34: #include <sys/signal.h>
1.1 deraadt 35: #include <sys/uio.h>
36: #include <sys/ktrace.h>
37: #include <sys/ioctl.h>
1.62 otto 38: #include <sys/malloc.h>
39: #include <sys/namei.h>
1.1 deraadt 40: #include <sys/ptrace.h>
1.62 otto 41: #include <sys/sem.h>
42: #include <sys/shm.h>
1.51 otto 43: #include <sys/socket.h>
1.28 deraadt 44: #include <sys/sysctl.h>
1.63 deraadt 45: #include <sys/siginfo.h>
1.62 otto 46: #include <sys/vmmeter.h>
47: #include <sys/tty.h>
1.82 guenther 48: #include <sys/wait.h>
1.1 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;
1.111 guenther 75: int needtid, tail, basecol;
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:
1.115 deraadt 244: if (pledge("stdio rpath getpw", NULL) == -1)
1.113 deraadt 245: err(1, "pledge");
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);
1.112 deraadt 252:
1.67 mikeb 253: if (fread_tail(&ktr_header, sizeof(struct ktr_header), 1) == 0 ||
254: ktr_header.ktr_type != htobe32(KTR_START))
255: errx(1, "%s: not a dump", tracefile);
1.1 deraadt 256: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
1.17 deraadt 257: silent = 0;
1.59 otto 258: if (pe_size == 0)
259: mappidtoemul(ktr_header.ktr_pid, current);
1.85 guenther 260: if (pid_opt != -1 && pid_opt != ktr_header.ktr_pid)
1.17 deraadt 261: silent = 1;
262: if (silent == 0 && trpoints & (1<<ktr_header.ktr_type))
1.1 deraadt 263: dumpheader(&ktr_header);
1.37 tedu 264: ktrlen = ktr_header.ktr_len;
1.1 deraadt 265: if (ktrlen > size) {
1.23 tedu 266: void *newm;
267:
1.64 guenther 268: if (ktrlen == SIZE_MAX)
269: errx(1, "data too long");
1.23 tedu 270: newm = realloc(m, ktrlen+1);
271: if (newm == NULL)
1.66 deraadt 272: err(1, "realloc");
1.23 tedu 273: m = newm;
1.1 deraadt 274: size = ktrlen;
275: }
276: if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
277: errx(1, "data too short");
1.17 deraadt 278: if (silent)
279: continue;
1.1 deraadt 280: if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
281: continue;
1.59 otto 282: current = findemul(ktr_header.ktr_pid);
1.1 deraadt 283: switch (ktr_header.ktr_type) {
284: case KTR_SYSCALL:
1.93 jsg 285: ktrsyscall((struct ktr_syscall *)m, ktrlen);
1.1 deraadt 286: break;
287: case KTR_SYSRET:
1.103 guenther 288: ktrsysret((struct ktr_sysret *)m, ktrlen);
1.1 deraadt 289: break;
290: case KTR_NAMEI:
291: ktrnamei(m, ktrlen);
292: break;
293: case KTR_GENIO:
294: ktrgenio((struct ktr_genio *)m, ktrlen);
295: break;
296: case KTR_PSIG:
297: ktrpsig((struct ktr_psig *)m);
298: break;
299: case KTR_EMUL:
300: ktremul(m, ktrlen);
1.59 otto 301: mappidtoemul(ktr_header.ktr_pid, current);
1.1 deraadt 302: break;
1.55 otto 303: case KTR_STRUCT:
304: ktrstruct(m, ktrlen);
305: break;
1.81 miod 306: case KTR_USER:
307: ktruser(m, ktrlen);
308: break;
1.106 guenther 309: case KTR_EXECARGS:
310: case KTR_EXECENV:
311: ktrexec(m, ktrlen);
312: break;
1.1 deraadt 313: }
314: if (tail)
315: (void)fflush(stdout);
316: }
1.12 espie 317: exit(0);
1.1 deraadt 318: }
319:
1.59 otto 320: static void
321: mappidtoemul(pid_t pid, struct emulation *emul)
322: {
323: size_t i;
324: struct pid_emul *tmp;
325:
326: for (i = 0; i < pe_size; i++) {
327: if (pe_table[i].p == pid) {
328: pe_table[i].e = emul;
329: return;
330: }
331: }
1.90 doug 332: tmp = reallocarray(pe_table, pe_size + 1, sizeof(*pe_table));
1.59 otto 333: if (tmp == NULL)
334: err(1, NULL);
335: pe_table = tmp;
336: pe_table[pe_size].p = pid;
337: pe_table[pe_size].e = emul;
338: pe_size++;
339: }
340:
341: static struct emulation*
342: findemul(pid_t pid)
343: {
344: size_t i;
345:
346: for (i = 0; i < pe_size; i++)
347: if (pe_table[i].p == pid)
348: return pe_table[i].e;
1.60 otto 349: return def_emul;
1.59 otto 350: }
351:
1.12 espie 352: static int
1.37 tedu 353: fread_tail(void *buf, size_t size, size_t num)
1.1 deraadt 354: {
355: int i;
356:
357: while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
358: (void)sleep(1);
359: clearerr(stdin);
360: }
361: return (i);
362: }
363:
1.12 espie 364: static void
1.17 deraadt 365: dumpheader(struct ktr_header *kth)
1.1 deraadt 366: {
1.67 mikeb 367: static struct timespec prevtime;
1.1 deraadt 368: char unknown[64], *type;
1.67 mikeb 369: struct timespec temp;
1.1 deraadt 370:
371: switch (kth->ktr_type) {
372: case KTR_SYSCALL:
373: type = "CALL";
374: break;
375: case KTR_SYSRET:
376: type = "RET ";
377: break;
378: case KTR_NAMEI:
379: type = "NAMI";
380: break;
381: case KTR_GENIO:
382: type = "GIO ";
383: break;
384: case KTR_PSIG:
385: type = "PSIG";
386: break;
387: case KTR_EMUL:
388: type = "EMUL";
389: break;
1.55 otto 390: case KTR_STRUCT:
391: type = "STRU";
392: break;
1.81 miod 393: case KTR_USER:
394: type = "USER";
395: break;
1.106 guenther 396: case KTR_EXECARGS:
397: type = "ARGS";
398: break;
399: case KTR_EXECENV:
400: type = "ENV ";
401: break;
1.1 deraadt 402: default:
1.17 deraadt 403: (void)snprintf(unknown, sizeof unknown, "UNKNOWN(%d)",
404: kth->ktr_type);
1.1 deraadt 405: type = unknown;
406: }
407:
1.111 guenther 408: basecol = printf("%6ld", (long)kth->ktr_pid);
1.67 mikeb 409: if (needtid)
1.111 guenther 410: basecol += printf("/%-7ld", (long)kth->ktr_tid);
411: basecol += printf(" %-8.*s ", MAXCOMLEN, kth->ktr_comm);
1.1 deraadt 412: if (timestamp) {
413: if (timestamp == 2) {
1.67 mikeb 414: timespecsub(&kth->ktr_time, &prevtime, &temp);
1.1 deraadt 415: prevtime = kth->ktr_time;
416: } else
417: temp = kth->ktr_time;
1.111 guenther 418: basecol += printf("%lld.%06ld ", (long long)temp.tv_sec,
1.79 deraadt 419: temp.tv_nsec / 1000);
1.1 deraadt 420: }
1.111 guenther 421: basecol += printf("%s ", type);
1.1 deraadt 422: }
423:
1.92 guenther 424: /*
425: * Base Formatters
426: */
427:
428: /* some syscalls have padding that shouldn't be shown */
429: static int
430: pad(long arg)
431: {
432: /* nothing printed */
433: return (1);
434: }
435:
436: /* a formatter that just saves the argument for the next formatter */
437: int arg1;
438: static int
439: pass_two(long arg)
440: {
441: arg1 = (int)arg;
442:
443: /* nothing printed */
444: return (1);
445: }
446:
447: static int
448: pdeclong(long arg)
449: {
450: (void)printf("%ld", arg);
451: return (0);
452: }
453:
454: static int
455: pdeculong(long arg)
1.2 deraadt 456: {
1.92 guenther 457: (void)printf("%lu", arg);
458: return (0);
459: }
1.2 deraadt 460:
1.92 guenther 461: static int
462: phexlong(long arg)
463: {
464: (void)printf("%#lx", arg);
465: return (0);
466: }
1.2 deraadt 467:
1.92 guenther 468: static int
469: pnonfancy(long arg)
470: {
471: if (decimal)
472: (void)printf("%ld", arg);
1.2 deraadt 473: else
1.92 guenther 474: (void)printf("%#lx", arg);
475: return (0);
1.2 deraadt 476: }
1.1 deraadt 477:
1.52 otto 478: static void
1.92 guenther 479: pdecint(int arg)
1.52 otto 480: {
1.92 guenther 481: (void)printf("%d", arg);
1.52 otto 482: }
483:
484: static void
1.92 guenther 485: pdecuint(int arg)
1.52 otto 486: {
1.92 guenther 487: (void)printf("%u", arg);
1.52 otto 488: }
489:
490: static void
1.92 guenther 491: phexint(int arg)
1.52 otto 492: {
1.92 guenther 493: (void)printf("%#x", arg);
1.52 otto 494: }
1.92 guenther 495:
1.52 otto 496: static void
1.92 guenther 497: poctint(int arg)
498: {
499: (void)printf("%#o", arg);
500: }
501:
502:
503: #ifdef __LP64__
504:
505: /* on LP64, long long arguments are the same as long arguments */
506: #define Phexlonglong Phexlong
507: #define phexll NULL /* not actually used on LP64 */
508:
509: #else /* __LP64__ */
510:
511: /* on ILP32, long long arguments are passed as two 32bit args */
512: #define Phexlonglong PASS_LONGLONG, Phexll
513:
514: static int
515: phexll(long arg2)
1.52 otto 516: {
1.92 guenther 517: long long val;
518:
519: #if _BYTE_ORDER == _LITTLE_ENDIAN
520: val = ((long long)arg2 << 32) | ((long long)arg1 & 0xffffffff);
521: #else
522: val = ((long long)arg1 << 32) | ((long long)arg2 & 0xffffffff);
523: #endif
524:
525: if (fancy || !decimal)
526: (void)printf("%#llx", val);
527: else
1.52 otto 528: (void)printf("%lld", val);
1.92 guenther 529: return (0);
1.52 otto 530: }
1.92 guenther 531:
532: #endif /* __LP64__ */
533:
534: static int (*long_formatters[])(long) = {
535: NULL,
536: pdeclong,
537: pdeculong,
538: phexlong,
539: pass_two,
540: pass_two,
541: phexll,
542: pad,
543: pnonfancy,
544: };
545:
546: static void (*formatters[])(int) = {
547: NULL,
548: pdecint,
549: phexint,
550: poctint,
551: pdecuint,
552: ioctldecode,
553: ptracedecode,
554: atfd,
555: polltimeout,
556: wait4pid,
557: signame,
558: semctlname,
559: shmctlname,
560: semgetname,
561: flagsandmodename,
562: clockname,
563: sockoptlevelname,
564: ktraceopname,
565: fcntlcmdname,
566: modename,
567: flagsname,
568: openflagsname,
569: atflagsname,
570: accessmodename,
571: mmapprotname,
572: mmapflagsname,
573: wait4optname,
574: sendrecvflagsname,
575: mountflagsname,
576: rebootoptname,
577: flockname,
578: sockoptname,
579: sockipprotoname,
580: socktypename,
581: sockflagsname,
582: sockfamilyname,
583: mlockallname,
584: shmatname,
585: whencename,
586: pathconfname,
587: rlimitname,
588: shutdownhowname,
589: prioname,
590: madvisebehavname,
591: msyncflagsname,
592: clocktypename,
593: rusagewho,
594: sigactionflagname,
595: sigprocmaskhowname,
596: minheritname,
597: quotactlname,
598: sigill_name,
599: sigtrap_name,
600: sigemt_name,
601: sigfpe_name,
602: sigbus_name,
603: sigsegv_name,
604: sigchld_name,
605: ktracefacname,
606: itimername,
607: sigset,
1.94 guenther 608: uidname,
609: gidname,
1.92 guenther 610: };
611:
612: enum {
613: /* the end of the (known) arguments is recognized by the zero fill */
614: end_of_args = 0,
615:
616: /* negative are the negative of the index into long_formatters[] */
617: Pdeclong = -1,
618: Pdeculong = -2,
619: Phexlong = -3,
620: PASS_TWO = -4,
621:
622: /* the remaining long formatters still get called when non-fancy (-n option) */
623: #define FMT_IS_NONFANCY(x) ((x) <= PASS_LONGLONG)
624: PASS_LONGLONG = -5,
625: Phexll = -6,
626: PAD = -7,
627: Pnonfancy = -8,
628:
629: /* positive values are the index into formatters[] */
630: Pdecint = 1,
631: Phexint,
632: Poctint,
633: Pdecuint,
634: Ioctldecode,
635: Ptracedecode,
636: Atfd,
637: Polltimeout,
638: Wait4pid,
639: Signame,
640: Semctlname,
641: Shmctlname,
642: Semgetname,
643: Flagsandmodename,
644: Clockname,
645: Sockoptlevelname,
646: Ktraceopname,
647: Fcntlcmdname,
648: Modename,
649: Flagsname,
650: Openflagsname,
651: Atflagsname,
652: Accessmodename,
653: Mmapprotname,
654: Mmapflagsname,
655: Wait4optname,
656: Sendrecvflagsname,
657: Mountflagsname,
658: Rebootoptname,
659: Flockname,
660: Sockoptname,
661: Sockipprotoname,
662: Socktypename,
663: Sockflagsname,
664: Sockfamilyname,
665: Mlockallname,
666: Shmatname,
667: Whencename,
668: Pathconfname,
669: Rlimitname,
670: Shutdownhowname,
671: Prioname,
672: Madvisebehavname,
673: Msyncflagsname,
674: Clocktypename,
675: Rusagewho,
676: Sigactionflagname,
677: Sigprocmaskhowname,
678: Minheritname,
679: Quotactlname,
680: Sigill_name,
681: Sigtrap_name,
682: Sigemt_name,
683: Sigfpe_name,
684: Sigbus_name,
685: Sigsegv_name,
686: Sigchld_name,
687: Ktracefacname,
688: Itimername,
689: Sigset,
1.94 guenther 690: Uidname,
691: Gidname,
1.92 guenther 692: };
693:
694: #define Pptr Phexlong
695: #define Psize Pdeculong /* size_t for small buffers */
696: #define Pbigsize Phexlong /* size_t for I/O buffers */
697: #define Pcount Pdecint /* int for a count of something */
698: #define Pfd Pdecint
699: #define Ppath Phexlong
700: #define Pdev_t Pdecint
701: #define Ppid_t Pdecint
702: #define Ppgid Pdecint /* pid or negative pgid */
703: #define Poff_t Phexlonglong
704: #define Pmsqid Pdecint
705: #define Pshmid Pdecint
706: #define Psemid Pdecint
707: #define Pkey_t Pdecint
708: #define Pucount Pdecuint
709: #define Chflagsname Phexlong /* to be added */
710: #define Sockprotoname Phexlong /* to be added */
711: #define Swapctlname Phexlong /* to be added */
712: #define Msgflgname Phexlong /* to be added */
713:
714:
715: typedef signed char formatter;
716: static const formatter scargs[][8] = {
717: [SYS_exit] = { Pdecint },
718: [SYS_read] = { Pfd, Pptr, Pbigsize },
719: [SYS_write] = { Pfd, Pptr, Pbigsize },
720: [SYS_open] = { Ppath, PASS_TWO, Flagsandmodename },
721: [SYS_close] = { Pfd },
722: [SYS_getentropy] = { Pptr, Psize },
723: [SYS___tfork] = { Pptr, Psize },
724: [SYS_link] = { Ppath, Ppath },
725: [SYS_unlink] = { Ppath },
726: [SYS_wait4] = { Wait4pid, Pptr, Wait4optname },
727: [SYS_chdir] = { Ppath },
728: [SYS_fchdir] = { Pfd },
729: [SYS_mknod] = { Ppath, Modename, Pdev_t },
730: [SYS_chmod] = { Ppath, Modename },
1.94 guenther 731: [SYS_chown] = { Ppath, Uidname, Gidname },
1.92 guenther 732: [SYS_break] = { Pptr },
733: [SYS_getrusage] = { Rusagewho, Pptr },
734: [SYS_mount] = { Pptr, Ppath, Mountflagsname, Pptr },
735: [SYS_unmount] = { Ppath, Mountflagsname },
1.94 guenther 736: [SYS_setuid] = { Uidname },
1.92 guenther 737: [SYS_ptrace] = { Ptracedecode, Ppid_t, Pptr, Pdecint },
738: [SYS_recvmsg] = { Pfd, Pptr, Sendrecvflagsname },
739: [SYS_sendmsg] = { Pfd, Pptr, Sendrecvflagsname },
740: [SYS_recvfrom] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
741: [SYS_accept] = { Pfd, Pptr, Pptr },
742: [SYS_getpeername] = { Pfd, Pptr, Pptr },
743: [SYS_getsockname] = { Pfd, Pptr, Pptr },
744: [SYS_access] = { Ppath, Accessmodename },
745: [SYS_chflags] = { Ppath, Chflagsname },
746: [SYS_fchflags] = { Pfd, Chflagsname },
747: [SYS_kill] = { Ppgid, Signame },
748: [SYS_stat] = { Ppath, Pptr },
749: [SYS_lstat] = { Ppath, Pptr },
750: [SYS_dup] = { Pfd },
751: [SYS_fstatat] = { Atfd, Ppath, Pptr, Atflagsname },
752: [SYS_profil] = { Pptr, Pbigsize, Pbigsize, Pdecuint },
753: [SYS_ktrace] = { Ppath, Ktraceopname, Ktracefacname, Ppgid },
754: [SYS_sigaction] = { Signame, Pptr, Pptr },
755: [SYS_sigprocmask] = { Sigprocmaskhowname, Sigset },
756: [SYS_getlogin] = { Pptr, Pucount },
757: [SYS_setlogin] = { Pptr },
758: [SYS_acct] = { Ppath },
759: [SYS_fstat] = { Pfd, Pptr },
760: [SYS_ioctl] = { Pfd, Ioctldecode, Pptr },
761: [SYS_reboot] = { Rebootoptname },
762: [SYS_revoke] = { Ppath },
763: [SYS_symlink] = { Ppath, Ppath },
764: [SYS_readlink] = { Ppath, Pptr, Psize },
765: [SYS_execve] = { Ppath, Pptr, Pptr },
766: [SYS_umask] = { Modename },
767: [SYS_chroot] = { Ppath },
768: [SYS_getfsstat] = { Pptr, Pbigsize, Mountflagsname },
769: [SYS_statfs] = { Ppath, Pptr },
770: [SYS_fstatfs] = { Pfd, Pptr },
771: [SYS_fhstatfs] = { Pptr, Pptr },
772: [SYS_gettimeofday] = { Pptr, Pptr },
773: [SYS_settimeofday] = { Pptr, Pptr },
774: [SYS_setitimer] = { Itimername, Pptr, Pptr },
775: [SYS_getitimer] = { Itimername, Pptr },
776: [SYS_select] = { Pcount, Pptr, Pptr, Pptr, Pptr },
777: [SYS_kevent] = { Pfd, Pptr, Pcount, Pptr, Pcount, Pptr },
778: [SYS_munmap] = { Pptr, Pbigsize },
779: [SYS_mprotect] = { Pptr, Pbigsize, Mmapprotname },
780: [SYS_madvise] = { Pptr, Pbigsize, Madvisebehavname },
781: [SYS_utimes] = { Ppath, Pptr },
782: [SYS_futimes] = { Pfd, Pptr },
783: [SYS_mincore] = { Pptr, Pbigsize, Pptr },
784: [SYS_getgroups] = { Pcount, Pptr },
785: [SYS_setgroups] = { Pcount, Pptr },
786: [SYS_setpgid] = { Ppid_t, Ppid_t },
787: [SYS_sendsyslog] = { Pptr, Psize },
788: [SYS_utimensat] = { Atfd, Ppath, Pptr, Atflagsname },
789: [SYS_futimens] = { Pfd, Pptr },
790: [SYS_clock_gettime] = { Clockname, Pptr },
791: [SYS_clock_settime] = { Clockname, Pptr },
792: [SYS_clock_getres] = { Clockname, Pptr },
793: [SYS_dup2] = { Pfd, Pfd },
794: [SYS_nanosleep] = { Pptr, Pptr },
795: [SYS_fcntl] = { Pfd, PASS_TWO, Fcntlcmdname },
796: [SYS_accept4] = { Pfd, Pptr, Pptr, Sockflagsname },
797: [SYS___thrsleep] = { Pptr, Clockname, Pptr, Pptr, Pptr },
798: [SYS_fsync] = { Pfd },
799: [SYS_setpriority] = { Prioname, Ppid_t, Pdecint },
1.99 guenther 800: [SYS_socket] = { Sockfamilyname, Socktypename, Sockprotoname },
1.116 ! deraadt 801: [SYS_dnssocket] = { Sockfamilyname, Socktypename, Sockprotoname },
1.92 guenther 802: [SYS_connect] = { Pfd, Pptr, Pucount },
1.116 ! deraadt 803: [SYS_dnsconnect] = { Pfd, Pptr, Pucount },
1.92 guenther 804: [SYS_getdents] = { Pfd, Pptr, Pbigsize },
805: [SYS_getpriority] = { Prioname, Ppid_t },
806: [SYS_pipe2] = { Pptr, Flagsname },
807: [SYS_dup3] = { Pfd, Pfd, Flagsname },
808: [SYS_sigreturn] = { Pptr },
809: [SYS_bind] = { Pfd, Pptr, Pucount },
810: [SYS_setsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pdecint },
811: [SYS_listen] = { Pfd, Pdecint },
812: [SYS_chflagsat] = { Atfd, Ppath, Chflagsname, Atflagsname },
813: [SYS_ppoll] = { Pptr, Pucount, Pptr, Pptr },
814: [SYS_pselect] = { Pcount, Pptr, Pptr, Pptr, Pptr, Pptr },
815: [SYS_sigsuspend] = { Sigset },
816: [SYS_getsockopt] = { Pfd, PASS_TWO, Sockoptlevelname, Pptr, Pptr },
817: [SYS_readv] = { Pfd, Pptr, Pcount },
818: [SYS_writev] = { Pfd, Pptr, Pcount },
1.94 guenther 819: [SYS_fchown] = { Pfd, Uidname, Gidname },
1.92 guenther 820: [SYS_fchmod] = { Pfd, Modename },
1.94 guenther 821: [SYS_setreuid] = { Uidname, Uidname },
822: [SYS_setregid] = { Gidname, Gidname },
1.92 guenther 823: [SYS_rename] = { Ppath, Ppath },
824: [SYS_flock] = { Pfd, Flockname },
825: [SYS_mkfifo] = { Ppath, Modename },
826: [SYS_sendto] = { Pfd, Pptr, Pbigsize, Sendrecvflagsname },
827: [SYS_shutdown] = { Pfd, Shutdownhowname },
1.99 guenther 828: [SYS_socketpair] = { Sockfamilyname, Socktypename, Sockprotoname, Pptr },
1.92 guenther 829: [SYS_mkdir] = { Ppath, Modename },
830: [SYS_rmdir] = { Ppath },
831: [SYS_adjtime] = { Pptr, Pptr },
1.94 guenther 832: [SYS_quotactl] = { Ppath, Quotactlname, Uidname, Pptr },
1.92 guenther 833: [SYS_nfssvc] = { Phexint, Pptr },
834: [SYS_getfh] = { Ppath, Pptr },
835: [SYS_sysarch] = { Pdecint, Pptr },
836: [SYS_pread] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
837: [SYS_pwrite] = { Pfd, Pptr, Pbigsize, PAD, Poff_t },
1.94 guenther 838: [SYS_setgid] = { Gidname },
839: [SYS_setegid] = { Gidname },
840: [SYS_seteuid] = { Uidname },
1.92 guenther 841: [SYS_pathconf] = { Ppath, Pathconfname },
842: [SYS_fpathconf] = { Pfd, Pathconfname },
843: [SYS_swapctl] = { Swapctlname, Pptr, Pdecint },
844: [SYS_getrlimit] = { Rlimitname, Pptr },
845: [SYS_setrlimit] = { Rlimitname, Pptr },
846: [SYS_mmap] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
847: [SYS_lseek] = { Pfd, PAD, Poff_t, Whencename },
848: [SYS_truncate] = { Ppath, PAD, Poff_t },
849: [SYS_ftruncate] = { Pfd, PAD, Poff_t },
1.105 guenther 850: /* [SYS_sysctl] = { }, Magic */
1.92 guenther 851: [SYS_mlock] = { Pptr, Pbigsize },
852: [SYS_munlock] = { Pptr, Pbigsize },
853: [SYS_getpgid] = { Ppid_t },
854: [SYS_utrace] = { Pptr, Pptr, Psize },
855: [SYS_semget] = { Pkey_t, Pcount, Semgetname },
856: [SYS_msgget] = { Pkey_t, Msgflgname },
857: [SYS_msgsnd] = { Pmsqid, Pptr, Psize, Msgflgname },
858: [SYS_msgrcv] = { Pmsqid, Pptr, Psize, Pdeclong, Msgflgname },
859: [SYS_shmat] = { Pshmid, Pptr, Shmatname },
860: [SYS_shmdt] = { Pptr },
861: [SYS_minherit] = { Pptr, Pbigsize, Minheritname },
862: [SYS_poll] = { Pptr, Pucount, Polltimeout },
1.94 guenther 863: [SYS_lchown] = { Ppath, Uidname, Gidname },
1.92 guenther 864: [SYS_getsid] = { Ppid_t },
865: [SYS_msync] = { Pptr, Pbigsize, Msyncflagsname },
866: [SYS_pipe] = { Pptr },
867: [SYS_fhopen] = { Pptr, Openflagsname },
868: [SYS_preadv] = { Pfd, Pptr, Pcount, PAD, Poff_t },
869: [SYS_pwritev] = { Pfd, Pptr, Pcount, PAD, Poff_t },
870: [SYS_mlockall] = { Mlockallname },
871: [SYS_getresuid] = { Pptr, Pptr, Pptr },
1.94 guenther 872: [SYS_setresuid] = { Uidname, Uidname, Uidname },
1.92 guenther 873: [SYS_getresgid] = { Pptr, Pptr, Pptr },
1.94 guenther 874: [SYS_setresgid] = { Gidname, Gidname, Gidname },
1.92 guenther 875: [SYS_mquery] = { Pptr, Pbigsize, Mmapprotname, Mmapflagsname, Pfd, PAD, Poff_t },
876: [SYS_closefrom] = { Pfd },
877: [SYS_sigaltstack] = { Pptr, Pptr },
878: [SYS_shmget] = { Pkey_t, Pbigsize, Semgetname },
879: [SYS_semop] = { Psemid, Pptr, Psize },
880: [SYS_fhstat] = { Pptr, Pptr },
881: [SYS___semctl] = { Psemid, Pcount, Semctlname, Pptr },
882: [SYS_shmctl] = { Pshmid, Shmctlname, Pptr },
883: [SYS_msgctl] = { Pmsqid, Shmctlname, Pptr },
884: [SYS___thrwakeup] = { Pptr, Pcount },
885: [SYS___threxit] = { Pptr },
886: [SYS___thrsigdivert] = { Sigset, Pptr, Pptr },
887: [SYS___getcwd] = { Pptr, Psize },
888: [SYS_adjfreq] = { Pptr, Pptr },
889: [SYS_setrtable] = { Pdecint },
890: [SYS_faccessat] = { Atfd, Ppath, Accessmodename, Atflagsname },
891: [SYS_fchmodat] = { Atfd, Ppath, Modename, Atflagsname },
1.94 guenther 892: [SYS_fchownat] = { Atfd, Ppath, Uidname, Gidname, Atflagsname },
1.92 guenther 893: [SYS_linkat] = { Atfd, Ppath, Atfd, Ppath, Atflagsname },
894: [SYS_mkdirat] = { Atfd, Ppath, Modename },
895: [SYS_mkfifoat] = { Atfd, Ppath, Modename },
896: [SYS_mknodat] = { Atfd, Ppath, Modename, Pdev_t },
897: [SYS_openat] = { Atfd, Ppath, PASS_TWO, Flagsandmodename },
898: [SYS_readlinkat] = { Atfd, Ppath, Pptr, Psize },
899: [SYS_renameat] = { Atfd, Ppath, Atfd, Ppath },
1.98 guenther 900: [SYS_symlinkat] = { Ppath, Atfd, Ppath },
1.92 guenther 901: [SYS_unlinkat] = { Atfd, Ppath, Atflagsname },
902: [SYS___set_tcb] = { Pptr },
903: };
904:
1.51 otto 905:
1.12 espie 906: static void
1.93 jsg 907: ktrsyscall(struct ktr_syscall *ktr, size_t ktrlen)
1.1 deraadt 908: {
1.92 guenther 909: register_t *ap;
910: int narg;
911: char sep;
912:
1.93 jsg 913: if (ktr->ktr_argsize > ktrlen)
914: errx(1, "syscall argument length %d > ktr header length %zu",
915: ktr->ktr_argsize, ktrlen);
916:
1.52 otto 917: narg = ktr->ktr_argsize / sizeof(register_t);
918: sep = '\0';
1.1 deraadt 919:
920: if (ktr->ktr_code >= current->nsysnames || ktr->ktr_code < 0)
921: (void)printf("[%d]", ktr->ktr_code);
922: else
923: (void)printf("%s", current->sysnames[ktr->ktr_code]);
924: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 925: (void)putchar('(');
1.52 otto 926:
1.54 otto 927: if (current != &emulations[0])
928: goto nonnative;
929:
1.105 guenther 930: if (ktr->ktr_code == SYS_sysctl) {
1.62 otto 931: const char *s;
1.94 guenther 932: int n, i, *top;
1.52 otto 933:
934: if (!fancy)
1.92 guenther 935: goto nonnative;
1.52 otto 936: n = ap[1];
937: if (n > CTL_MAXNAME)
938: n = CTL_MAXNAME;
1.93 jsg 939: if (n < 0)
940: errx(1, "invalid sysctl length %d", n);
1.94 guenther 941: if (n > 0) {
942: top = (int *)(ap + 6);
943: printf("%d", top[0]);
944: for (i = 1; i < n; i++)
945: printf(".%d", top[i]);
946: if ((s = kresolvsysctl(0, top)) != NULL) {
947: printf("<%s", s);
948: for (i = 1; i < n; i++) {
949: if ((s = kresolvsysctl(i, top)) != NULL)
950: printf(".%s", s);
951: else
952: printf(".%d", top[i]);
953: }
954: putchar('>');
955: }
1.1 deraadt 956: }
1.52 otto 957:
958: sep = ',';
959: ap += 2;
960: narg -= 2;
1.92 guenther 961: } else if (ktr->ktr_code < nitems(scargs)) {
962: const formatter *fmts = scargs[ktr->ktr_code];
963: int fmt;
1.52 otto 964:
1.92 guenther 965: while (narg && (fmt = *fmts) != 0) {
966: if (sep)
967: putchar(sep);
968: sep = ',';
969: if (!fancy && !FMT_IS_NONFANCY(fmt))
970: fmt = Pnonfancy;
971: if (fmt > 0)
972: formatters[fmt]((int)*ap);
973: else if (long_formatters[-fmt](*ap))
974: sep = '\0';
975: fmts++;
976: ap++;
977: narg--;
978: }
1.52 otto 979: }
980:
1.54 otto 981: nonnative:
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:
1.1 deraadt 1139: if (code >= current->nsysnames || code < 0)
1140: (void)printf("[%d] ", code);
1.59 otto 1141: else {
1.1 deraadt 1142: (void)printf("%s ", current->sysnames[code]);
1.103 guenther 1143: if (error == 0 && ret > 0 &&
1144: (strcmp(current->sysnames[code], "fork") == 0 ||
1.59 otto 1145: strcmp(current->sysnames[code], "vfork") == 0 ||
1.64 guenther 1146: strcmp(current->sysnames[code], "__tfork") == 0 ||
1.59 otto 1147: strcmp(current->sysnames[code], "clone") == 0))
1148: mappidtoemul(ret, current);
1149: }
1.1 deraadt 1150:
1151: if (error == 0) {
1152: if (fancy) {
1.64 guenther 1153: switch (current == &emulations[0] ? code : -1) {
1.103 guenther 1154: case SYS_lseek:
1155: (void)printf("%lld", retll);
1156: if (retll < 0 || retll > 9)
1157: (void)printf("/%#llx", retll);
1158: break;
1.64 guenther 1159: case SYS_sigprocmask:
1.73 guenther 1160: case SYS_sigpending:
1.64 guenther 1161: sigset(ret);
1162: break;
1163: case SYS___thrsigdivert:
1164: signame(ret);
1.94 guenther 1165: break;
1166: case SYS_getuid:
1167: case SYS_geteuid:
1168: uidname(ret);
1169: break;
1170: case SYS_getgid:
1171: case SYS_getegid:
1172: gidname(ret);
1.64 guenther 1173: break;
1174: case -1: /* non-default emulation */
1175: default:
1176: (void)printf("%ld", (long)ret);
1177: if (ret < 0 || ret > 9)
1178: (void)printf("/%#lx", (long)ret);
1179: }
1.1 deraadt 1180: } else {
1181: if (decimal)
1.103 guenther 1182: (void)printf("%lld", retll);
1.1 deraadt 1183: else
1.103 guenther 1184: (void)printf("%#llx", retll);
1.1 deraadt 1185: }
1186: } else if (error == ERESTART)
1187: (void)printf("RESTART");
1188: else if (error == EJUSTRETURN)
1189: (void)printf("JUSTRETURN");
1190: else {
1191: (void)printf("-1 errno %d", ktr->ktr_error);
1192: if (fancy)
1193: (void)printf(" %s", strerror(ktr->ktr_error));
1194: }
1195: (void)putchar('\n');
1196: }
1197:
1.12 espie 1198: static void
1.37 tedu 1199: ktrnamei(const char *cp, size_t len)
1.1 deraadt 1200: {
1.37 tedu 1201: (void)printf("\"%.*s\"\n", (int)len, cp);
1.1 deraadt 1202: }
1203:
1.12 espie 1204: static void
1.37 tedu 1205: ktremul(char *cp, size_t len)
1.1 deraadt 1206: {
1207: char name[1024];
1208:
1209: if (len >= sizeof(name))
1210: errx(1, "Emulation name too long");
1211:
1212: strncpy(name, cp, len);
1213: name[len] = '\0';
1214: (void)printf("\"%s\"\n", name);
1215:
1216: setemul(name);
1217: }
1218:
1.111 guenther 1219: void
1220: showbufc(int col, unsigned char *dp, size_t datalen)
1.106 guenther 1221: {
1222: int i, j;
1.111 guenther 1223: int width, bpl;
1.106 guenther 1224: unsigned char visbuf[5], *cp, c;
1225:
1226: putchar('"');
1.111 guenther 1227: col++;
1.106 guenther 1228: for (; datalen > 0; datalen--, dp++) {
1229: (void)vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1230: cp = visbuf;
1231:
1232: /*
1233: * Keep track of printables and
1234: * space chars (like fold(1)).
1235: */
1236: if (col == 0) {
1237: (void)putchar('\t');
1238: col = 8;
1239: }
1240: switch (*cp) {
1241: case '\n':
1242: col = 0;
1243: (void)putchar('\n');
1244: continue;
1245: case '\t':
1246: width = 8 - (col&07);
1247: break;
1248: default:
1249: width = strlen(cp);
1250: }
1251: if (col + width > (screenwidth-2)) {
1252: (void)printf("\\\n\t");
1253: col = 8;
1254: }
1255: col += width;
1256: do {
1257: (void)putchar(*cp++);
1258: } while (*cp);
1259: }
1260: if (col == 0)
1261: (void)printf(" ");
1262: (void)printf("\"\n");
1263: }
1264:
1265: static void
1.81 miod 1266: showbuf(unsigned char *dp, size_t datalen)
1.1 deraadt 1267: {
1.37 tedu 1268: int i, j;
1.31 tedu 1269: int col = 0, width, bpl;
1.32 tedu 1270: unsigned char visbuf[5], *cp, c;
1.1 deraadt 1271:
1.31 tedu 1272: if (iohex == 1) {
1273: putchar('\t');
1274: col = 8;
1275: for (i = 0; i < datalen; i++) {
1.35 tedu 1276: printf("%02x", dp[i]);
1.31 tedu 1277: col += 3;
1278: if (i < datalen - 1) {
1279: if (col + 3 > screenwidth) {
1280: printf("\n\t");
1281: col = 8;
1282: } else
1283: putchar(' ');
1284: }
1285: }
1286: putchar('\n');
1287: return;
1288: }
1289: if (iohex == 2) {
1290: bpl = (screenwidth - 13)/4;
1291: if (bpl <= 0)
1292: bpl = 1;
1293: for (i = 0; i < datalen; i += bpl) {
1294: printf(" %04x: ", i);
1295: for (j = 0; j < bpl; j++) {
1296: if (i+j >= datalen)
1297: printf(" ");
1298: else
1.35 tedu 1299: printf("%02x ", dp[i+j]);
1.31 tedu 1300: }
1301: putchar(' ');
1302: for (j = 0; j < bpl; j++) {
1303: if (i+j >= datalen)
1304: break;
1305: c = dp[i+j];
1306: if (!isprint(c))
1307: c = '.';
1308: putchar(c);
1309: }
1310: putchar('\n');
1311: }
1312: return;
1313: }
1.111 guenther 1314:
1315: (void)printf(" ");
1316: showbufc(7, dp, datalen);
1.1 deraadt 1317: }
1318:
1.12 espie 1319: static void
1.81 miod 1320: ktrgenio(struct ktr_genio *ktr, size_t len)
1321: {
1322: unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
1.93 jsg 1323: size_t datalen;
1324:
1325: if (len < sizeof(struct ktr_genio))
1326: errx(1, "invalid ktr genio length %zu", len);
1327:
1328: datalen = len - sizeof(struct ktr_genio);
1.81 miod 1329:
1330: printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
1331: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
1332: if (maxdata == 0)
1333: return;
1334: if (datalen > maxdata)
1335: datalen = maxdata;
1336: if (iohex && !datalen)
1337: return;
1338: showbuf(dp, datalen);
1339: }
1340:
1341: static void
1.17 deraadt 1342: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 1343: {
1.93 jsg 1344: signame(psig->signo);
1.96 bluhm 1345: printf(" ");
1.1 deraadt 1346: if (psig->action == SIG_DFL)
1.63 deraadt 1347: (void)printf("SIG_DFL");
1.64 guenther 1348: else {
1349: (void)printf("caught handler=0x%lx mask=",
1350: (u_long)psig->action);
1351: sigset(psig->mask);
1352: }
1.63 deraadt 1353: if (psig->code) {
1354: printf(" code ");
1355: if (fancy) {
1356: switch (psig->signo) {
1357: case SIGILL:
1358: sigill_name(psig->code);
1359: break;
1360: case SIGTRAP:
1361: sigtrap_name(psig->code);
1362: break;
1363: case SIGEMT:
1364: sigemt_name(psig->code);
1365: break;
1366: case SIGFPE:
1367: sigfpe_name(psig->code);
1368: break;
1369: case SIGBUS:
1370: sigbus_name(psig->code);
1371: break;
1372: case SIGSEGV:
1373: sigsegv_name(psig->code);
1374: break;
1375: case SIGCHLD:
1376: sigchld_name(psig->code);
1377: break;
1378: }
1379: }
1380: printf("<%d>", psig->code);
1381: }
1382:
1.14 deraadt 1383: switch (psig->signo) {
1384: case SIGSEGV:
1385: case SIGILL:
1386: case SIGBUS:
1387: case SIGFPE:
1388: printf(" addr=%p trapno=%d", psig->si.si_addr,
1389: psig->si.si_trapno);
1390: break;
1391: default:
1392: break;
1393: }
1394: printf("\n");
1.1 deraadt 1395: }
1396:
1.64 guenther 1397: static void
1.81 miod 1398: ktruser(struct ktr_user *usr, size_t len)
1399: {
1.93 jsg 1400: if (len < sizeof(struct ktr_user))
1401: errx(1, "invalid ktr user length %zu", len);
1.81 miod 1402: len -= sizeof(struct ktr_user);
1403: printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
1404: printf(" %zu bytes\n", len);
1405: showbuf((unsigned char *)(usr + 1), len);
1.106 guenther 1406: }
1407:
1408: static void
1409: ktrexec(const char *ptr, size_t len)
1410: {
1411: char buf[sizeof("[2147483648] = ")];
1.111 guenther 1412: int i, col;
1.106 guenther 1413: size_t l;
1414:
1415: putchar('\n');
1416: i = 0;
1417: while (len > 0) {
1418: l = strnlen(ptr, len);
1.111 guenther 1419: col = printf("\t[%d] = ", i++);
1420: col += 7; /* tab expands from 1 to 8 columns */
1421: showbufc(col, (unsigned char *)ptr, l);
1.106 guenther 1422: if (l == len) {
1423: printf("\tunterminated argument\n");
1424: break;
1425: }
1426: len -= l + 1;
1427: ptr += l + 1;
1428: }
1.81 miod 1429: }
1430:
1431: static void
1.17 deraadt 1432: usage(void)
1.1 deraadt 1433: {
1434:
1.19 mickey 1435: extern char *__progname;
1436: fprintf(stderr, "usage: %s "
1.95 jmc 1437: "[-dHlnRTXx] [-e emulation] [-f file] [-m maxdata] [-p pid]\n"
1.107 jmc 1438: "%*s[-t [ceinstuxX+]]\n",
1.51 otto 1439: __progname, (int)(sizeof("usage: ") + strlen(__progname)), "");
1.1 deraadt 1440: exit(1);
1441: }
1442:
1.12 espie 1443: static void
1.17 deraadt 1444: setemul(const char *name)
1.1 deraadt 1445: {
1446: int i;
1.17 deraadt 1447:
1.1 deraadt 1448: for (i = 0; emulations[i].name != NULL; i++)
1449: if (strcmp(emulations[i].name, name) == 0) {
1450: current = &emulations[i];
1451: return;
1452: }
1453: warnx("Emulation `%s' unknown", name);
1.61 matthew 1454: }
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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