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1.73 ! guenther 1: /* $OpenBSD: kdump.c,v 1.72 2012/06/21 06:55:58 guenther Exp $ */
1.4 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1988, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.21 millert 15: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: #include <sys/param.h>
33: #include <sys/time.h>
34: #include <sys/uio.h>
35: #include <sys/ktrace.h>
36: #include <sys/ioctl.h>
1.62 otto 37: #include <sys/malloc.h>
38: #include <sys/namei.h>
1.1 deraadt 39: #include <sys/ptrace.h>
1.62 otto 40: #include <sys/sem.h>
41: #include <sys/shm.h>
1.51 otto 42: #include <sys/socket.h>
1.28 deraadt 43: #include <sys/sysctl.h>
1.63 deraadt 44: #include <sys/siginfo.h>
1.55 otto 45: #include <sys/un.h>
1.62 otto 46: #include <sys/vmmeter.h>
1.55 otto 47: #include <sys/stat.h>
1.62 otto 48: #include <sys/tty.h>
1.55 otto 49: #include <netinet/in.h>
50: #include <arpa/inet.h>
1.1 deraadt 51: #define _KERNEL
52: #include <sys/errno.h>
53: #undef _KERNEL
1.62 otto 54: #include <ddb/db_var.h>
55: #include <machine/cpu.h>
1.1 deraadt 56:
1.33 tedu 57: #include <ctype.h>
1.1 deraadt 58: #include <err.h>
1.61 matthew 59: #include <fcntl.h>
1.64 guenther 60: #include <limits.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>
1.55 otto 66: #include <grp.h>
67: #include <pwd.h>
1.1 deraadt 68: #include <unistd.h>
69: #include <vis.h>
70:
71: #include "ktrace.h"
1.22 deraadt 72: #include "kdump.h"
1.51 otto 73: #include "kdump_subr.h"
1.12 espie 74: #include "extern.h"
1.1 deraadt 75:
1.67 mikeb 76: int timestamp, decimal, iohex, fancy = 1, maxdata = INT_MAX;
77: int needtid, resolv, tail;
1.1 deraadt 78: char *tracefile = DEF_TRACEFILE;
79: struct ktr_header ktr_header;
1.17 deraadt 80: pid_t pid = -1;
1.1 deraadt 81:
1.55 otto 82: #define TIME_FORMAT "%b %e %T %Y"
1.1 deraadt 83: #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
84:
85: #include <sys/syscall.h>
86:
1.25 mickey 87: #include <compat/linux/linux_syscall.h>
1.1 deraadt 88:
89: #define KTRACE
1.19 mickey 90: #define PTRACE
1.7 deraadt 91: #define NFSCLIENT
92: #define NFSSERVER
93: #define SYSVSEM
94: #define SYSVMSG
95: #define SYSVSHM
96: #define LFS
1.25 mickey 97: #include <kern/syscalls.c>
1.1 deraadt 98:
1.25 mickey 99: #include <compat/linux/linux_syscalls.c>
1.1 deraadt 100: #undef KTRACE
1.19 mickey 101: #undef PTRACE
1.7 deraadt 102: #undef NFSCLIENT
103: #undef NFSSERVER
104: #undef SYSVSEM
105: #undef SYSVMSG
106: #undef SYSVSHM
107: #undef LFS
1.1 deraadt 108:
109: struct emulation {
110: char *name; /* Emulation name */
111: char **sysnames; /* Array of system call names */
112: int nsysnames; /* Number of */
113: };
114:
115: static struct emulation emulations[] = {
1.9 deraadt 116: { "native", syscallnames, SYS_MAXSYSCALL },
117: { "linux", linux_syscallnames, LINUX_SYS_MAXSYSCALL },
1.49 miod 118: { NULL, NULL, 0 }
1.1 deraadt 119: };
120:
1.59 otto 121: static struct emulation *current;
1.60 otto 122: static struct emulation *def_emul;
1.59 otto 123:
124: struct pid_emul {
125: struct emulation *e;
126: pid_t p;
127: };
128:
129: static struct pid_emul *pe_table;
130: static size_t pe_size;
1.1 deraadt 131:
132:
133: static char *ptrace_ops[] = {
134: "PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
135: "PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
1.15 art 136: "PT_KILL", "PT_ATTACH", "PT_DETACH", "PT_IO",
1.64 guenther 137: "PT_SET_EVENT_MASK", "PT_GET_EVENT_MASK", "PT_GET_PROCESS_STATE",
1.71 guenther 138: "PT_GET_THREAD_FIRST", "PT_GET_THREAD_NEXT",
1.1 deraadt 139: };
140:
1.52 otto 141: static int narg;
142: static register_t *ap;
143: static char sep;
144:
1.59 otto 145: static void mappidtoemul(pid_t, struct emulation *);
146: static struct emulation * findemul(pid_t);
1.37 tedu 147: static int fread_tail(void *, size_t, size_t);
1.13 millert 148: static void dumpheader(struct ktr_header *);
149: static void ktrcsw(struct ktr_csw *);
1.37 tedu 150: static void ktremul(char *, size_t);
151: static void ktrgenio(struct ktr_genio *, size_t);
152: static void ktrnamei(const char *, size_t);
1.13 millert 153: static void ktrpsig(struct ktr_psig *);
154: static void ktrsyscall(struct ktr_syscall *);
1.62 otto 155: static const char *kresolvsysctl(int, int *, int);
1.13 millert 156: static void ktrsysret(struct ktr_sysret *);
1.55 otto 157: static void ktrstruct(char *, size_t);
1.13 millert 158: static void setemul(const char *);
159: static void usage(void);
1.61 matthew 160: static void atfd(int);
1.12 espie 161:
1.1 deraadt 162: int
1.17 deraadt 163: main(int argc, char *argv[])
1.1 deraadt 164: {
1.37 tedu 165: int ch, silent;
166: size_t ktrlen, size;
1.17 deraadt 167: int trpoints = ALL_POINTS;
1.12 espie 168: void *m;
1.1 deraadt 169:
1.60 otto 170: def_emul = current = &emulations[0]; /* native */
1.1 deraadt 171:
1.67 mikeb 172: while ((ch = getopt(argc, argv, "e:f:dHlm:nrRp:Tt:xX")) != -1)
1.1 deraadt 173: switch (ch) {
174: case 'e':
175: setemul(optarg);
1.60 otto 176: def_emul = current;
1.1 deraadt 177: break;
178: case 'f':
179: tracefile = optarg;
180: break;
181: case 'd':
182: decimal = 1;
183: break;
1.67 mikeb 184: case 'H':
185: needtid = 1;
186: break;
1.1 deraadt 187: case 'l':
188: tail = 1;
189: break;
190: case 'm':
191: maxdata = atoi(optarg);
192: break;
193: case 'n':
194: fancy = 0;
195: break;
1.17 deraadt 196: case 'p':
197: pid = atoi(optarg);
198: break;
1.55 otto 199: case 'r':
200: resolv = 1;
201: break;
1.1 deraadt 202: case 'R':
203: timestamp = 2; /* relative timestamp */
204: break;
205: case 'T':
206: timestamp = 1;
207: break;
208: case 't':
209: trpoints = getpoints(optarg);
210: if (trpoints < 0)
211: errx(1, "unknown trace point in %s", optarg);
212: break;
1.31 tedu 213: case 'x':
214: iohex = 1;
215: break;
216: case 'X':
217: iohex = 2;
218: break;
1.1 deraadt 219: default:
220: usage();
221: }
1.5 deraadt 222: if (argc > optind)
1.1 deraadt 223: usage();
224:
1.37 tedu 225: m = malloc(size = 1025);
1.1 deraadt 226: if (m == NULL)
1.37 tedu 227: err(1, NULL);
1.1 deraadt 228: if (!freopen(tracefile, "r", stdin))
229: err(1, "%s", tracefile);
1.67 mikeb 230: if (fread_tail(&ktr_header, sizeof(struct ktr_header), 1) == 0 ||
231: ktr_header.ktr_type != htobe32(KTR_START))
232: errx(1, "%s: not a dump", tracefile);
1.1 deraadt 233: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
1.17 deraadt 234: silent = 0;
1.59 otto 235: if (pe_size == 0)
236: mappidtoemul(ktr_header.ktr_pid, current);
1.17 deraadt 237: if (pid != -1 && pid != ktr_header.ktr_pid)
238: silent = 1;
239: if (silent == 0 && trpoints & (1<<ktr_header.ktr_type))
1.1 deraadt 240: dumpheader(&ktr_header);
1.37 tedu 241: ktrlen = ktr_header.ktr_len;
1.1 deraadt 242: if (ktrlen > size) {
1.23 tedu 243: void *newm;
244:
1.64 guenther 245: if (ktrlen == SIZE_MAX)
246: errx(1, "data too long");
1.23 tedu 247: newm = realloc(m, ktrlen+1);
248: if (newm == NULL)
1.66 deraadt 249: err(1, "realloc");
1.23 tedu 250: m = newm;
1.1 deraadt 251: size = ktrlen;
252: }
253: if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
254: errx(1, "data too short");
1.17 deraadt 255: if (silent)
256: continue;
1.1 deraadt 257: if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
258: continue;
1.59 otto 259: current = findemul(ktr_header.ktr_pid);
1.1 deraadt 260: switch (ktr_header.ktr_type) {
261: case KTR_SYSCALL:
262: ktrsyscall((struct ktr_syscall *)m);
263: break;
264: case KTR_SYSRET:
265: ktrsysret((struct ktr_sysret *)m);
266: break;
267: case KTR_NAMEI:
268: ktrnamei(m, ktrlen);
269: break;
270: case KTR_GENIO:
271: ktrgenio((struct ktr_genio *)m, ktrlen);
272: break;
273: case KTR_PSIG:
274: ktrpsig((struct ktr_psig *)m);
275: break;
276: case KTR_CSW:
277: ktrcsw((struct ktr_csw *)m);
278: break;
279: case KTR_EMUL:
280: ktremul(m, ktrlen);
1.59 otto 281: mappidtoemul(ktr_header.ktr_pid, current);
1.1 deraadt 282: break;
1.55 otto 283: case KTR_STRUCT:
284: ktrstruct(m, ktrlen);
285: break;
1.1 deraadt 286: }
287: if (tail)
288: (void)fflush(stdout);
289: }
1.12 espie 290: exit(0);
1.1 deraadt 291: }
292:
1.59 otto 293: static void
294: mappidtoemul(pid_t pid, struct emulation *emul)
295: {
296: size_t i;
297: struct pid_emul *tmp;
298:
299: for (i = 0; i < pe_size; i++) {
300: if (pe_table[i].p == pid) {
301: pe_table[i].e = emul;
302: return;
303: }
304: }
305: tmp = realloc(pe_table, (pe_size + 1) * sizeof(*pe_table));
306: if (tmp == NULL)
307: err(1, NULL);
308: pe_table = tmp;
309: pe_table[pe_size].p = pid;
310: pe_table[pe_size].e = emul;
311: pe_size++;
312: }
313:
314: static struct emulation*
315: findemul(pid_t pid)
316: {
317: size_t i;
318:
319: for (i = 0; i < pe_size; i++)
320: if (pe_table[i].p == pid)
321: return pe_table[i].e;
1.60 otto 322: return def_emul;
1.59 otto 323: }
324:
1.12 espie 325: static int
1.37 tedu 326: fread_tail(void *buf, size_t size, size_t num)
1.1 deraadt 327: {
328: int i;
329:
330: while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
331: (void)sleep(1);
332: clearerr(stdin);
333: }
334: return (i);
335: }
336:
1.12 espie 337: static void
1.17 deraadt 338: dumpheader(struct ktr_header *kth)
1.1 deraadt 339: {
1.67 mikeb 340: static struct timespec prevtime;
1.1 deraadt 341: char unknown[64], *type;
1.67 mikeb 342: struct timespec temp;
1.1 deraadt 343:
344: switch (kth->ktr_type) {
345: case KTR_SYSCALL:
346: type = "CALL";
347: break;
348: case KTR_SYSRET:
349: type = "RET ";
350: break;
351: case KTR_NAMEI:
352: type = "NAMI";
353: break;
354: case KTR_GENIO:
355: type = "GIO ";
356: break;
357: case KTR_PSIG:
358: type = "PSIG";
359: break;
360: case KTR_CSW:
361: type = "CSW";
362: break;
363: case KTR_EMUL:
364: type = "EMUL";
365: break;
1.55 otto 366: case KTR_STRUCT:
367: type = "STRU";
368: break;
1.1 deraadt 369: default:
1.17 deraadt 370: (void)snprintf(unknown, sizeof unknown, "UNKNOWN(%d)",
371: kth->ktr_type);
1.1 deraadt 372: type = unknown;
373: }
374:
1.67 mikeb 375: (void)printf("%6ld", (long)kth->ktr_pid);
376: if (needtid)
1.69 mikeb 377: (void)printf("/%-7ld", (long)kth->ktr_tid);
1.67 mikeb 378: (void)printf(" %-8.*s ", MAXCOMLEN, kth->ktr_comm);
1.1 deraadt 379: if (timestamp) {
380: if (timestamp == 2) {
1.67 mikeb 381: timespecsub(&kth->ktr_time, &prevtime, &temp);
1.1 deraadt 382: prevtime = kth->ktr_time;
383: } else
384: temp = kth->ktr_time;
1.67 mikeb 385: (void)printf("%ld.%06ld ", temp.tv_sec, temp.tv_nsec / 1000);
1.1 deraadt 386: }
387: (void)printf("%s ", type);
388: }
389:
1.12 espie 390: static void
1.17 deraadt 391: ioctldecode(u_long cmd)
1.2 deraadt 392: {
393: char dirbuf[4], *dir = dirbuf;
394:
1.6 deraadt 395: if (cmd & IOC_IN)
396: *dir++ = 'W';
1.2 deraadt 397: if (cmd & IOC_OUT)
398: *dir++ = 'R';
399: *dir = '\0';
400:
1.33 tedu 401: printf(decimal ? ",_IO%s('%c',%lu" : ",_IO%s('%c',%#lx",
402: dirbuf, (int)((cmd >> 8) & 0xff), cmd & 0xff);
1.2 deraadt 403: if ((cmd & IOC_VOID) == 0)
1.34 tedu 404: printf(decimal ? ",%lu)" : ",%#lx)", (cmd >> 16) & 0xff);
1.2 deraadt 405: else
406: printf(")");
407: }
1.1 deraadt 408:
1.52 otto 409: static void
410: ptracedecode(void)
411: {
412: if (*ap >= 0 && *ap <
413: sizeof(ptrace_ops) / sizeof(ptrace_ops[0]))
414: (void)printf("%s", ptrace_ops[*ap]);
415: else switch(*ap) {
416: #ifdef PT_GETFPREGS
417: case PT_GETFPREGS:
418: (void)printf("PT_GETFPREGS");
419: break;
420: #endif
421: case PT_GETREGS:
422: (void)printf("PT_GETREGS");
423: break;
424: #ifdef PT_SETFPREGS
425: case PT_SETFPREGS:
426: (void)printf("PT_SETFPREGS");
427: break;
428: #endif
429: case PT_SETREGS:
430: (void)printf("PT_SETREGS");
431: break;
432: #ifdef PT_STEP
433: case PT_STEP:
434: (void)printf("PT_STEP");
435: break;
436: #endif
437: #ifdef PT_WCOOKIE
438: case PT_WCOOKIE:
439: (void)printf("PT_WCOOKIE");
440: break;
441: #endif
442: default:
443: (void)printf("%ld", (long)*ap);
444: break;
445: }
446: sep = ',';
447: ap++;
448: narg--;
449: }
450:
451: static void
452: pn(void (*f)(int))
453: {
454: if (sep)
455: (void)putchar(sep);
456: if (fancy && f != NULL)
457: f((int)*ap);
458: else if (decimal)
459: (void)printf("%ld", (long)*ap);
460: else
461: (void)printf("%#lx", (long)*ap);
462: ap++;
463: narg--;
464: sep = ',';
465: }
466:
467: #ifdef __LP64__
468: #define plln() pn(NULL)
469: #elif _BYTE_ORDER == _LITTLE_ENDIAN
470: static void
471: plln(void)
472: {
473: long long val = ((long long)*ap) & 0xffffffff;
474: ap++;
475: val |= ((long long)*ap) << 32;
476: ap++;
477: narg -= 2;
478: if (sep)
479: (void)putchar(sep);
480: if (decimal)
481: (void)printf("%lld", val);
482: else
483: (void)printf("%#llx", val);
484: sep = ',';
485: }
486: #else
487: static void
488: plln(void)
489: {
490: long long val = ((long long)*ap) << 32;
491: ap++;
492: val |= ((long long)*ap) & 0xffffffff;
493: ap++;
494: narg -= 2;
495: if (sep)
496: (void)putchar(sep);
497: if (decimal)
498: (void)printf("%lld", val);
499: else
500: (void)printf("%#llx", val);
501: sep = ',';
502: }
503: #endif
1.51 otto 504:
1.12 espie 505: static void
1.17 deraadt 506: ktrsyscall(struct ktr_syscall *ktr)
1.1 deraadt 507: {
1.52 otto 508: narg = ktr->ktr_argsize / sizeof(register_t);
509: sep = '\0';
1.1 deraadt 510:
511: if (ktr->ktr_code >= current->nsysnames || ktr->ktr_code < 0)
512: (void)printf("[%d]", ktr->ktr_code);
513: else
514: (void)printf("%s", current->sysnames[ktr->ktr_code]);
515: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 516: (void)putchar('(');
1.52 otto 517:
1.54 otto 518: if (current != &emulations[0])
519: goto nonnative;
520:
1.52 otto 521: switch (ktr->ktr_code) {
522: case SYS_ioctl: {
523: const char *cp;
524:
525: pn(NULL);
526: if (!fancy)
527: break;
528: if ((cp = ioctlname(*ap)) != NULL)
529: (void)printf(",%s", cp);
530: else
531: ioctldecode(*ap);
532: ap++;
533: narg--;
534: break;
535: }
536: case SYS___sysctl: {
1.62 otto 537: const char *s;
538: int *np, n, i, *top;
1.52 otto 539:
540: if (!fancy)
541: break;
542: n = ap[1];
543: if (n > CTL_MAXNAME)
544: n = CTL_MAXNAME;
1.62 otto 545: np = top = (int *)(ap + 6);
546: for (i = 0; n--; np++, i++) {
1.52 otto 547: if (sep)
548: putchar(sep);
1.62 otto 549: if (resolv && (s = kresolvsysctl(i, top, *np)) != NULL)
550: printf("%s", s);
551: else
552: printf("%d", *np);
1.52 otto 553: sep = '.';
1.1 deraadt 554: }
1.52 otto 555:
556: sep = ',';
557: ap += 2;
558: narg -= 2;
559: break;
560: }
561: case SYS_ptrace:
562: if (!fancy)
563: break;
564: ptracedecode();
565: break;
566: case SYS_access:
567: pn(NULL);
568: pn(accessmodename);
569: break;
570: case SYS_chmod:
571: case SYS_fchmod:
1.61 matthew 572: pn(NULL);
1.52 otto 573: pn(modename);
574: break;
575: case SYS_fcntl: {
576: int cmd;
577: int arg;
578: pn(NULL);
579: if (!fancy)
580: break;
581: cmd = ap[0];
582: arg = ap[1];
583: (void)putchar(',');
584: fcntlcmdname(cmd, arg);
585: ap += 2;
586: narg -= 2;
587: break;
588: }
589: case SYS_flock:
590: pn(NULL);
591: pn(flockname);
592: break;
593: case SYS_getrlimit:
594: case SYS_setrlimit:
595: pn(rlimitname);
596: break;
597: case SYS_getsockopt:
598: case SYS_setsockopt: {
599: int level;
600:
601: pn(NULL);
602: level = *ap;
603: pn(sockoptlevelname);
604: if (level == SOL_SOCKET)
605: pn(sockoptname);
606: break;
607: }
608: case SYS_kill:
609: pn(NULL);
610: pn(signame);
611: break;
612: case SYS_lseek:
613: pn(NULL);
614: /* skip padding */
615: ap++;
616: narg--;
617: plln();
618: pn(whencename);
619: break;
620: case SYS_madvise:
621: pn(NULL);
622: pn(NULL);
623: pn(madvisebehavname);
624: break;
625: case SYS_minherit:
626: pn(NULL);
627: pn(NULL);
628: pn(minheritname);
629: break;
630: case SYS_mlockall:
631: pn(mlockallname);
632: break;
633: case SYS_mmap:
634: pn(NULL);
635: pn(NULL);
636: pn(mmapprotname);
637: pn(mmapflagsname);
638: pn(NULL);
639: /* skip padding */
640: ap++;
641: narg--;
642: plln();
643: break;
644: case SYS_mprotect:
645: pn(NULL);
646: pn(NULL);
647: pn(mmapprotname);
648: break;
649: case SYS_mquery:
650: pn(NULL);
651: pn(NULL);
652: pn(mmapprotname);
653: pn(mmapflagsname);
654: pn(NULL);
655: /* skip padding */
656: ap++;
657: narg--;
658: plln();
659: break;
660: case SYS_msync:
661: pn(NULL);
662: pn(NULL);
663: pn(msyncflagsname);
664: break;
665: case SYS_msgctl:
666: pn(NULL);
667: pn(shmctlname);
668: break;
669: case SYS_open: {
670: int flags;
671: int mode;
672:
673: pn(NULL);
674: if (!fancy)
675: break;
676: flags = ap[0];
677: mode = ap[1];
678: (void)putchar(',');
679: flagsandmodename(flags, mode);
680: ap += 2;
681: narg -= 2;
682: break;
683: }
684: case SYS_pread:
685: case SYS_preadv:
686: case SYS_pwrite:
687: case SYS_pwritev:
688: pn(NULL);
689: pn(NULL);
690: pn(NULL);
691: /* skip padding */
692: ap++;
693: narg--;
694: plln();
695: break;
696: case SYS_recvmsg:
697: case SYS_sendmsg:
698: pn(NULL);
699: pn(NULL);
700: pn(sendrecvflagsname);
701: break;
702: case SYS_recvfrom:
703: case SYS_sendto:
704: pn(NULL);
705: pn(NULL);
706: pn(NULL);
707: pn(sendrecvflagsname);
708: break;
709: case SYS___semctl:
710: pn(NULL);
711: pn(NULL);
712: pn(semctlname);
713: break;
714: case SYS_semget:
715: pn(NULL);
716: pn(NULL);
717: pn(semgetname);
718: break;
719: case SYS_shmat:
720: pn(NULL);
721: pn(NULL);
722: pn(shmatname);
723: break;
724: case SYS_shmctl:
725: pn(NULL);
726: pn(shmctlname);
727: break;
1.64 guenther 728: case SYS_clock_gettime:
729: case SYS_clock_settime:
730: case SYS_clock_getres:
731: pn(clockname);
732: break;
1.52 otto 733: case SYS_sigaction:
734: pn(signame);
735: break;
736: case SYS_sigprocmask:
737: pn(sigprocmaskhowname);
1.64 guenther 738: pn(sigset);
739: break;
740: case SYS_sigsuspend:
741: pn(sigset);
1.52 otto 742: break;
743: case SYS_socket: {
744: int sockdomain = *ap;
745:
746: pn(sockdomainname);
747: pn(socktypename);
748: if (sockdomain == PF_INET || sockdomain == PF_INET6)
749: pn(sockipprotoname);
750: break;
751: }
752: case SYS_socketpair:
753: pn(sockdomainname);
754: pn(socktypename);
755: break;
756: case SYS_truncate:
757: case SYS_ftruncate:
758: pn(NULL);
759: /* skip padding */
760: ap++;
761: narg--;
762: plln();
763: break;
764: case SYS_wait4:
765: pn(NULL);
766: pn(NULL);
767: pn(wait4optname);
768: break;
1.64 guenther 769: case SYS___thrsleep:
770: pn(NULL);
771: pn(clockname);
772: break;
773: case SYS___thrsigdivert:
774: pn(sigset);
775: break;
1.61 matthew 776: case SYS_faccessat:
777: pn(atfd);
778: pn(NULL);
779: pn(accessmodename);
780: pn(atflagsname);
781: break;
782: case SYS_fchmodat:
783: pn(atfd);
784: pn(NULL);
785: pn(modename);
786: pn(atflagsname);
787: break;
788: case SYS_fchownat:
789: pn(atfd);
790: pn(NULL);
791: pn(NULL);
792: pn(NULL);
793: pn(atflagsname);
794: break;
795: case SYS_fstatat:
796: pn(atfd);
797: pn(NULL);
798: pn(NULL);
799: pn(atflagsname);
800: break;
801: case SYS_linkat:
802: pn(atfd);
803: pn(NULL);
804: pn(atfd);
805: pn(NULL);
806: pn(atflagsname);
807: break;
808: case SYS_mkdirat:
809: case SYS_mkfifoat:
810: case SYS_mknodat:
811: pn(atfd);
812: pn(NULL);
813: pn(modename);
814: break;
815: case SYS_openat: {
816: int flags;
817: int mode;
818:
819: pn(atfd);
820: pn(NULL);
821: if (!fancy)
822: break;
823: flags = ap[0];
824: mode = ap[1];
825: (void)putchar(',');
826: flagsandmodename(flags, mode);
827: ap += 2;
828: narg -= 2;
829: break;
830: }
831: case SYS_readlinkat:
832: pn(atfd);
833: break;
834: case SYS_renameat:
835: pn(atfd);
836: pn(NULL);
837: pn(atfd);
838: break;
839: case SYS_symlinkat:
840: pn(NULL);
841: pn(atfd);
842: break;
843: case SYS_unlinkat:
844: pn(atfd);
845: pn(NULL);
846: pn(atflagsname);
847: break;
848: case SYS_utimensat:
849: pn(atfd);
850: pn(NULL);
851: pn(NULL);
852: pn(atflagsname);
853: break;
1.52 otto 854: }
855:
1.54 otto 856: nonnative:
1.52 otto 857: while (narg) {
858: if (sep)
859: putchar(sep);
860: if (decimal)
861: (void)printf("%ld", (long)*ap);
862: else
863: (void)printf("%#lx", (long)*ap);
864: sep = ',';
865: ap++;
866: narg--;
1.1 deraadt 867: }
1.27 mickey 868: (void)printf(")\n");
1.62 otto 869: }
870:
871: static struct ctlname topname[] = CTL_NAMES;
872: static struct ctlname kernname[] = CTL_KERN_NAMES;
873: static struct ctlname vmname[] = CTL_VM_NAMES;
874: static struct ctlname fsname[] = CTL_FS_NAMES;
875: static struct ctlname netname[] = CTL_NET_NAMES;
876: static struct ctlname hwname[] = CTL_HW_NAMES;
877: static struct ctlname username[] = CTL_USER_NAMES;
878: static struct ctlname debugname[CTL_DEBUG_MAXID];
879: static struct ctlname kernmallocname[] = CTL_KERN_MALLOC_NAMES;
880: static struct ctlname forkstatname[] = CTL_KERN_FORKSTAT_NAMES;
881: static struct ctlname nchstatsname[] = CTL_KERN_NCHSTATS_NAMES;
1.64 guenther 882: static struct ctlname kernprocname[] =
883: {
884: { NULL },
885: { "all" },
886: { "pid" },
887: { "pgrp" },
888: { "session" },
889: { "tty" },
890: { "uid" },
891: { "ruid" },
892: };
1.62 otto 893: static struct ctlname ttysname[] = CTL_KERN_TTY_NAMES;
894: static struct ctlname semname[] = CTL_KERN_SEMINFO_NAMES;
895: static struct ctlname shmname[] = CTL_KERN_SHMINFO_NAMES;
896: static struct ctlname watchdogname[] = CTL_KERN_WATCHDOG_NAMES;
897: static struct ctlname tcname[] = CTL_KERN_TIMECOUNTER_NAMES;
898: #ifdef CTL_MACHDEP_NAMES
899: static struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
900: #endif
901: static struct ctlname ddbname[] = CTL_DDB_NAMES;
902:
903: #ifndef nitems
904: #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
905: #endif
906:
907: #define SETNAME(name) do { names = (name); limit = nitems(name); } while (0)
908:
909: static const char *
910: kresolvsysctl(int depth, int *top, int idx)
911: {
912: struct ctlname *names;
913: size_t limit;
914:
915: names = NULL;
916:
917: switch (depth) {
918: case 0:
919: SETNAME(topname);
920: break;
921: case 1:
922: switch (top[0]) {
923: case CTL_KERN:
924: SETNAME(kernname);
925: break;
926: case CTL_VM:
927: SETNAME(vmname);
928: break;
929: case CTL_FS:
930: SETNAME(fsname);
931: break;
932: case CTL_NET:
933: SETNAME(netname);
934: break;
935: case CTL_DEBUG:
936: SETNAME(debugname);
937: break;
938: case CTL_HW:
939: SETNAME(hwname);
940: break;
941: #ifdef CTL_MACHDEP_NAMES
942: case CTL_MACHDEP:
943: SETNAME(machdepname);
944: break;
945: #endif
946: case CTL_USER:
947: SETNAME(username);
948: break;
949: case CTL_DDB:
950: SETNAME(ddbname);
951: break;
952: }
953: break;
954: case 2:
955: switch (top[0]) {
956: case CTL_KERN:
957: switch (top[1]) {
958: case KERN_MALLOCSTATS:
959: SETNAME(kernmallocname);
960: break;
961: case KERN_FORKSTAT:
962: SETNAME(forkstatname);
963: break;
964: case KERN_NCHSTATS:
965: SETNAME(nchstatsname);
966: break;
967: case KERN_TTY:
968: SETNAME(ttysname);
969: break;
970: case KERN_SEMINFO:
971: SETNAME(semname);
972: break;
973: case KERN_SHMINFO:
974: SETNAME(shmname);
975: break;
976: case KERN_WATCHDOG:
977: SETNAME(watchdogname);
978: break;
1.64 guenther 979: case KERN_PROC:
980: idx++; /* zero is valid at this level */
981: SETNAME(kernprocname);
982: break;
1.62 otto 983: case KERN_TIMECOUNTER:
984: SETNAME(tcname);
985: break;
986: }
987: }
988: break;
989: }
990: if (names != NULL && idx > 0 && idx < limit)
991: return (names[idx].ctl_name);
992: return (NULL);
1.1 deraadt 993: }
994:
1.12 espie 995: static void
1.17 deraadt 996: ktrsysret(struct ktr_sysret *ktr)
1.1 deraadt 997: {
1.50 deraadt 998: register_t ret = ktr->ktr_retval;
1.12 espie 999: int error = ktr->ktr_error;
1000: int code = ktr->ktr_code;
1.1 deraadt 1001:
1002: if (code >= current->nsysnames || code < 0)
1003: (void)printf("[%d] ", code);
1.59 otto 1004: else {
1.1 deraadt 1005: (void)printf("%s ", current->sysnames[code]);
1.59 otto 1006: if (ret > 0 && (strcmp(current->sysnames[code], "fork") == 0 ||
1007: strcmp(current->sysnames[code], "vfork") == 0 ||
1.64 guenther 1008: strcmp(current->sysnames[code], "__tfork") == 0 ||
1.59 otto 1009: strcmp(current->sysnames[code], "clone") == 0))
1010: mappidtoemul(ret, current);
1011: }
1.1 deraadt 1012:
1013: if (error == 0) {
1014: if (fancy) {
1.64 guenther 1015: switch (current == &emulations[0] ? code : -1) {
1016: case SYS_sigprocmask:
1.73 ! guenther 1017: case SYS_sigpending:
1.64 guenther 1018: sigset(ret);
1019: break;
1020: case SYS___thrsigdivert:
1021: signame(ret);
1022: break;
1023: case -1: /* non-default emulation */
1024: default:
1025: (void)printf("%ld", (long)ret);
1026: if (ret < 0 || ret > 9)
1027: (void)printf("/%#lx", (long)ret);
1028: }
1.1 deraadt 1029: } else {
1030: if (decimal)
1.50 deraadt 1031: (void)printf("%ld", (long)ret);
1.1 deraadt 1032: else
1.50 deraadt 1033: (void)printf("%#lx", (long)ret);
1.1 deraadt 1034: }
1035: } else if (error == ERESTART)
1036: (void)printf("RESTART");
1037: else if (error == EJUSTRETURN)
1038: (void)printf("JUSTRETURN");
1039: else {
1040: (void)printf("-1 errno %d", ktr->ktr_error);
1041: if (fancy)
1042: (void)printf(" %s", strerror(ktr->ktr_error));
1043: }
1044: (void)putchar('\n');
1045: }
1046:
1.12 espie 1047: static void
1.37 tedu 1048: ktrnamei(const char *cp, size_t len)
1.1 deraadt 1049: {
1.37 tedu 1050: (void)printf("\"%.*s\"\n", (int)len, cp);
1.1 deraadt 1051: }
1052:
1.12 espie 1053: static void
1.37 tedu 1054: ktremul(char *cp, size_t len)
1.1 deraadt 1055: {
1056: char name[1024];
1057:
1058: if (len >= sizeof(name))
1059: errx(1, "Emulation name too long");
1060:
1061: strncpy(name, cp, len);
1062: name[len] = '\0';
1063: (void)printf("\"%s\"\n", name);
1064:
1065: setemul(name);
1066: }
1067:
1.12 espie 1068: static void
1.37 tedu 1069: ktrgenio(struct ktr_genio *ktr, size_t len)
1.1 deraadt 1070: {
1.37 tedu 1071: unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
1072: int i, j;
1073: size_t datalen = len - sizeof(struct ktr_genio);
1.12 espie 1074: static int screenwidth = 0;
1.31 tedu 1075: int col = 0, width, bpl;
1.32 tedu 1076: unsigned char visbuf[5], *cp, c;
1.1 deraadt 1077:
1078: if (screenwidth == 0) {
1079: struct winsize ws;
1080:
1081: if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1082: ws.ws_col > 8)
1083: screenwidth = ws.ws_col;
1084: else
1085: screenwidth = 80;
1086: }
1.37 tedu 1087: printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
1.1 deraadt 1088: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
1.58 otto 1089: if (maxdata == 0)
1090: return;
1091: if (datalen > maxdata)
1.1 deraadt 1092: datalen = maxdata;
1.31 tedu 1093: if (iohex && !datalen)
1094: return;
1095: if (iohex == 1) {
1096: putchar('\t');
1097: col = 8;
1098: for (i = 0; i < datalen; i++) {
1.35 tedu 1099: printf("%02x", dp[i]);
1.31 tedu 1100: col += 3;
1101: if (i < datalen - 1) {
1102: if (col + 3 > screenwidth) {
1103: printf("\n\t");
1104: col = 8;
1105: } else
1106: putchar(' ');
1107: }
1108: }
1109: putchar('\n');
1110: return;
1111: }
1112: if (iohex == 2) {
1113: bpl = (screenwidth - 13)/4;
1114: if (bpl <= 0)
1115: bpl = 1;
1116: for (i = 0; i < datalen; i += bpl) {
1117: printf(" %04x: ", i);
1118: for (j = 0; j < bpl; j++) {
1119: if (i+j >= datalen)
1120: printf(" ");
1121: else
1.35 tedu 1122: printf("%02x ", dp[i+j]);
1.31 tedu 1123: }
1124: putchar(' ');
1125: for (j = 0; j < bpl; j++) {
1126: if (i+j >= datalen)
1127: break;
1128: c = dp[i+j];
1129: if (!isprint(c))
1130: c = '.';
1131: putchar(c);
1132: }
1133: putchar('\n');
1134: }
1135: return;
1136: }
1.1 deraadt 1137: (void)printf(" \"");
1138: col = 8;
1139: for (; datalen > 0; datalen--, dp++) {
1.31 tedu 1140: (void)vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1.1 deraadt 1141: cp = visbuf;
1.17 deraadt 1142:
1.1 deraadt 1143: /*
1144: * Keep track of printables and
1145: * space chars (like fold(1)).
1146: */
1147: if (col == 0) {
1148: (void)putchar('\t');
1149: col = 8;
1150: }
1.17 deraadt 1151: switch (*cp) {
1.1 deraadt 1152: case '\n':
1153: col = 0;
1154: (void)putchar('\n');
1155: continue;
1156: case '\t':
1157: width = 8 - (col&07);
1158: break;
1159: default:
1160: width = strlen(cp);
1161: }
1162: if (col + width > (screenwidth-2)) {
1163: (void)printf("\\\n\t");
1164: col = 8;
1165: }
1166: col += width;
1167: do {
1168: (void)putchar(*cp++);
1169: } while (*cp);
1170: }
1171: if (col == 0)
1172: (void)printf(" ");
1173: (void)printf("\"\n");
1174: }
1175:
1.12 espie 1176: static void
1.17 deraadt 1177: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 1178: {
1179: (void)printf("SIG%s ", sys_signame[psig->signo]);
1180: if (psig->action == SIG_DFL)
1.63 deraadt 1181: (void)printf("SIG_DFL");
1.64 guenther 1182: else {
1183: (void)printf("caught handler=0x%lx mask=",
1184: (u_long)psig->action);
1185: sigset(psig->mask);
1186: }
1.63 deraadt 1187: if (psig->code) {
1188: printf(" code ");
1189: if (fancy) {
1190: switch (psig->signo) {
1191: case SIGILL:
1192: sigill_name(psig->code);
1193: break;
1194: case SIGTRAP:
1195: sigtrap_name(psig->code);
1196: break;
1197: case SIGEMT:
1198: sigemt_name(psig->code);
1199: break;
1200: case SIGFPE:
1201: sigfpe_name(psig->code);
1202: break;
1203: case SIGBUS:
1204: sigbus_name(psig->code);
1205: break;
1206: case SIGSEGV:
1207: sigsegv_name(psig->code);
1208: break;
1209: case SIGCHLD:
1210: sigchld_name(psig->code);
1211: break;
1212: }
1213: }
1214: printf("<%d>", psig->code);
1215: }
1216:
1.14 deraadt 1217: switch (psig->signo) {
1218: case SIGSEGV:
1219: case SIGILL:
1220: case SIGBUS:
1221: case SIGFPE:
1222: printf(" addr=%p trapno=%d", psig->si.si_addr,
1223: psig->si.si_trapno);
1224: break;
1225: default:
1226: break;
1227: }
1228: printf("\n");
1.1 deraadt 1229: }
1230:
1.12 espie 1231: static void
1.17 deraadt 1232: ktrcsw(struct ktr_csw *cs)
1.1 deraadt 1233: {
1234: (void)printf("%s %s\n", cs->out ? "stop" : "resume",
1235: cs->user ? "user" : "kernel");
1236: }
1237:
1.55 otto 1238:
1239:
1.64 guenther 1240: static void
1.55 otto 1241: ktrsockaddr(struct sockaddr *sa)
1242: {
1243: /*
1244: TODO: Support additional address families
1245: #include <netnatm/natm.h>
1246: struct sockaddr_natm *natm;
1247: #include <netsmb/netbios.h>
1248: struct sockaddr_nb *nb;
1249: */
1250: char addr[64];
1251:
1252: /*
1253: * note: ktrstruct() has already verified that sa points to a
1254: * buffer at least sizeof(struct sockaddr) bytes long and exactly
1255: * sa->sa_len bytes long.
1256: */
1257: printf("struct sockaddr { ");
1258: sockfamilyname(sa->sa_family);
1259: printf(", ");
1260:
1261: #define check_sockaddr_len(n) \
1262: if (sa_##n->s##n##_len < sizeof(struct sockaddr_##n)) { \
1263: printf("invalid"); \
1264: break; \
1265: }
1266:
1267: switch(sa->sa_family) {
1268: case AF_INET: {
1269: struct sockaddr_in *sa_in;
1270:
1271: sa_in = (struct sockaddr_in *)sa;
1272: check_sockaddr_len(in);
1273: inet_ntop(AF_INET, &sa_in->sin_addr, addr, sizeof addr);
1274: printf("%s:%u", addr, ntohs(sa_in->sin_port));
1275: break;
1276: }
1277: case AF_INET6: {
1278: struct sockaddr_in6 *sa_in6;
1279:
1280: sa_in6 = (struct sockaddr_in6 *)sa;
1281: check_sockaddr_len(in6);
1282: inet_ntop(AF_INET6, &sa_in6->sin6_addr, addr, sizeof addr);
1283: printf("[%s]:%u", addr, htons(sa_in6->sin6_port));
1284: break;
1285: }
1286: #ifdef IPX
1287: case AF_IPX: {
1288: struct sockaddr_ipx *sa_ipx;
1289:
1290: sa_ipx = (struct sockaddr_ipx *)sa;
1291: check_sockaddr_len(ipx);
1292: /* XXX wish we had ipx_ntop */
1293: printf("%s", ipx_ntoa(sa_ipx->sipx_addr));
1294: break;
1295: }
1296: #endif
1297: case AF_UNIX: {
1298: struct sockaddr_un *sa_un;
1299:
1300: sa_un = (struct sockaddr_un *)sa;
1301: if (sa_un->sun_len <= sizeof(sa_un->sun_len) +
1302: sizeof(sa_un->sun_family)) {
1303: printf("invalid");
1304: break;
1305: }
1306: printf("\"%.*s\"", (int)(sa_un->sun_len -
1307: sizeof(sa_un->sun_len) - sizeof(sa_un->sun_family)),
1308: sa_un->sun_path);
1309: break;
1310: }
1311: default:
1312: printf("unknown address family");
1313: }
1314: printf(" }\n");
1315: }
1316:
1.64 guenther 1317: static void
1318: print_time(time_t t, int relative)
1319: {
1320: char timestr[PATH_MAX + 4];
1321: struct tm *tm;
1322:
1323: if (resolv == 0 || relative)
1324: printf("%jd", (intmax_t)t);
1325: else {
1326: tm = localtime(&t);
1327: (void)strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1328: printf("\"%s\"", timestr);
1329: }
1330: }
1331:
1332: static void
1333: print_timespec(const struct timespec *tsp, int relative)
1.55 otto 1334: {
1.64 guenther 1335: print_time(tsp->tv_sec, relative);
1336: if (tsp->tv_nsec != 0)
1337: printf(".%09ld", tsp->tv_nsec);
1338: }
1339:
1340: static void
1341: ktrstat(const struct stat *statp)
1342: {
1343: char mode[12];
1.55 otto 1344: struct passwd *pwd;
1345: struct group *grp;
1346:
1347: /*
1348: * note: ktrstruct() has already verified that statp points to a
1349: * buffer exactly sizeof(struct stat) bytes long.
1350: */
1.64 guenther 1351: printf("struct stat { ");
1.55 otto 1352: strmode(statp->st_mode, mode);
1353: printf("dev=%d, ino=%u, mode=%s, nlink=%u, ",
1354: statp->st_dev, statp->st_ino, mode, statp->st_nlink);
1355: if (resolv == 0 || (pwd = getpwuid(statp->st_uid)) == NULL)
1356: printf("uid=%u, ", statp->st_uid);
1357: else
1358: printf("uid=\"%s\", ", pwd->pw_name);
1359: if (resolv == 0 || (grp = getgrgid(statp->st_gid)) == NULL)
1360: printf("gid=%u, ", statp->st_gid);
1361: else
1362: printf("gid=\"%s\", ", grp->gr_name);
1363: printf("rdev=%d, ", statp->st_rdev);
1364: printf("atime=");
1.64 guenther 1365: print_timespec(&statp->st_atim, 0);
1366: printf(", mtime=");
1367: print_timespec(&statp->st_mtim, 0);
1368: printf(", ctime=");
1369: print_timespec(&statp->st_ctim, 0);
1370: printf(", size=%lld, blocks=%lld, blksize=%u, flags=0x%x, gen=0x%x",
1.55 otto 1371: statp->st_size, statp->st_blocks, statp->st_blksize,
1372: statp->st_flags, statp->st_gen);
1373: printf(" }\n");
1374: }
1375:
1.64 guenther 1376: static void
1.65 guenther 1377: ktrtimespec(const struct timespec *tsp, int relative)
1378: {
1379: printf("struct timespec { ");
1380: print_timespec(tsp, relative);
1381: printf(" }\n");
1382: }
1383:
1384: static void
1385: ktrtimeval(const struct timeval *tvp, int relative)
1386: {
1387: printf("struct timeval { ");
1388: print_time(tvp->tv_sec, relative);
1389: if (tvp->tv_usec != 0)
1390: printf(".%06ld", tvp->tv_usec);
1391: printf(" }\n");
1392: }
1393:
1394: static void
1395: ktrsigaction(const struct sigaction *sa)
1396: {
1397: /*
1398: * note: ktrstruct() has already verified that sa points to a
1399: * buffer exactly sizeof(struct sigaction) bytes long.
1400: */
1401: printf("struct sigaction { ");
1402: if (sa->sa_handler == SIG_DFL)
1403: printf("handler=SIG_DFL");
1404: else if (sa->sa_handler == SIG_IGN)
1405: printf("handler=SIG_IGN");
1406: else if (sa->sa_flags & SA_SIGINFO)
1407: printf("sigaction=%p", (void *)sa->sa_sigaction);
1408: else
1409: printf("handler=%p", (void *)sa->sa_handler);
1410: printf(", mask=");
1411: sigset(sa->sa_mask);
1412: printf(", flags=");
1413: sigactionflagname(sa->sa_flags);
1414: printf(" }\n");
1415: }
1416:
1417: static void
1418: print_rlim(rlim_t lim)
1419: {
1420: if (lim == RLIM_INFINITY)
1421: printf("infinite");
1422: else
1423: printf("%llu", (unsigned long long)lim);
1424: }
1425:
1426: static void
1427: ktrrlimit(const struct rlimit *limp)
1428: {
1429: printf("struct rlimit { ");
1430: printf("cur=");
1431: print_rlim(limp->rlim_cur);
1432: printf(", max=");
1433: print_rlim(limp->rlim_max);
1434: printf(" }\n");
1435: }
1436:
1437: static void
1.72 guenther 1438: ktrtfork(const struct __tfork *tf)
1439: {
1440: printf("struct __tfork { tcb=%p, tid=%p, stack=%p }\n",
1441: tf->tf_tcb, (void *)tf->tf_tid, tf->tf_stack);
1442: }
1443:
1444: static void
1.55 otto 1445: ktrstruct(char *buf, size_t buflen)
1446: {
1447: char *name, *data;
1448: size_t namelen, datalen;
1449: int i;
1450:
1451: for (name = buf, namelen = 0; namelen < buflen && name[namelen] != '\0';
1452: ++namelen)
1453: /* nothing */;
1454: if (namelen == buflen)
1455: goto invalid;
1456: if (name[namelen] != '\0')
1457: goto invalid;
1458: data = buf + namelen + 1;
1459: datalen = buflen - namelen - 1;
1460: if (datalen == 0)
1461: goto invalid;
1462: /* sanity check */
1463: for (i = 0; i < namelen; ++i)
1464: if (!isalpha((unsigned char)name[i]))
1465: goto invalid;
1466: if (strcmp(name, "stat") == 0) {
1.64 guenther 1467: struct stat sb;
1468:
1.55 otto 1469: if (datalen != sizeof(struct stat))
1470: goto invalid;
1471: memcpy(&sb, data, datalen);
1472: ktrstat(&sb);
1473: } else if (strcmp(name, "sockaddr") == 0) {
1.64 guenther 1474: struct sockaddr_storage ss;
1475:
1.55 otto 1476: if (datalen > sizeof(ss))
1477: goto invalid;
1478: memcpy(&ss, data, datalen);
1479: if ((ss.ss_family != AF_UNIX &&
1480: datalen < sizeof(struct sockaddr)) || datalen != ss.ss_len)
1481: goto invalid;
1482: ktrsockaddr((struct sockaddr *)&ss);
1.65 guenther 1483: } else if (strcmp(name, "abstimespec") == 0 ||
1484: strcmp(name, "reltimespec") == 0) {
1485: struct timespec ts;
1486:
1487: if (datalen != sizeof(ts))
1488: goto invalid;
1489: memcpy(&ts, data, datalen);
1490: ktrtimespec(&ts, name[0] == 'r');
1491: } else if (strcmp(name, "abstimeval") == 0 ||
1492: strcmp(name, "reltimeval") == 0) {
1493: struct timeval tv;
1494:
1495: if (datalen != sizeof(tv))
1496: goto invalid;
1497: memcpy(&tv, data, datalen);
1498: ktrtimeval(&tv, name[0] == 'r');
1499: } else if (strcmp(name, "sigaction") == 0) {
1500: struct sigaction sa;
1501:
1502: if (datalen != sizeof(sa))
1503: goto invalid;
1504: memcpy(&sa, data, datalen);
1505: ktrsigaction(&sa);
1506: } else if (strcmp(name, "rlimit") == 0) {
1507: struct rlimit lim;
1508:
1509: if (datalen != sizeof(lim))
1510: goto invalid;
1511: memcpy(&lim, data, datalen);
1512: ktrrlimit(&lim);
1.72 guenther 1513: } else if (strcmp(name, "tfork") == 0) {
1514: struct __tfork tf;
1515:
1516: if (datalen != sizeof(tf))
1517: goto invalid;
1518: memcpy(&tf, data, datalen);
1519: ktrtfork(&tf);
1.55 otto 1520: } else {
1.57 otto 1521: printf("unknown structure %s\n", name);
1.55 otto 1522: }
1523: return;
1524: invalid:
1525: printf("invalid record\n");
1526: }
1527:
1.12 espie 1528: static void
1.17 deraadt 1529: usage(void)
1.1 deraadt 1530: {
1531:
1.19 mickey 1532: extern char *__progname;
1533: fprintf(stderr, "usage: %s "
1.68 jmc 1534: "[-dHlnRrTXx] [-e emulation] [-f file] [-m maxdata] [-p pid]\n"
1.40 sobrado 1535: "%*s[-t [ceinsw]]\n",
1.51 otto 1536: __progname, (int)(sizeof("usage: ") + strlen(__progname)), "");
1.1 deraadt 1537: exit(1);
1538: }
1539:
1.12 espie 1540: static void
1.17 deraadt 1541: setemul(const char *name)
1.1 deraadt 1542: {
1543: int i;
1.17 deraadt 1544:
1.1 deraadt 1545: for (i = 0; emulations[i].name != NULL; i++)
1546: if (strcmp(emulations[i].name, name) == 0) {
1547: current = &emulations[i];
1548: return;
1549: }
1550: warnx("Emulation `%s' unknown", name);
1.61 matthew 1551: }
1552:
1553: static void
1554: atfd(int fd)
1555: {
1556: if (fd == AT_FDCWD)
1557: (void)printf("AT_FDCWD");
1558: else if (decimal)
1559: (void)printf("%d", fd);
1560: else
1561: (void)printf("%#x", fd);
1.1 deraadt 1562: }