1228 lines
27 KiB
C
1228 lines
27 KiB
C
/* $NetBSD: kdump.c,v 1.130 2018/04/29 18:00:31 christos Exp $ */
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/*-
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1988, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)kdump.c 8.4 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: kdump.c,v 1.130 2018/04/29 18:00:31 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/file.h>
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#define _KMEMUSER /* To get the pseudo errors defined */
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#include <sys/errno.h>
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#undef _KMEMUSER
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#include <sys/mman.h>
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#include <sys/time.h>
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#include <sys/uio.h>
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#include <sys/ktrace.h>
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#include <sys/ioctl.h>
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#include <sys/ptrace.h>
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#include <sys/socket.h>
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#include <ctype.h>
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#include <err.h>
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#include <signal.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <vis.h>
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#include <util.h>
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#include "ktrace.h"
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#include "setemul.h"
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#include <sys/syscall.h>
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#define TIMESTAMP_NONE 0x0
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#define TIMESTAMP_ABSOLUTE 0x1
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#define TIMESTAMP_ELAPSED 0x2
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#define TIMESTAMP_RELATIVE 0x4
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static int timestamp, decimal, plain, tail, maxdata = -1, numeric;
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static int word_size = 0;
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static pid_t do_pid = -1;
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static const char *tracefile = NULL;
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static struct ktr_header ktr_header;
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static int emul_changed = 0;
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#define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
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#define small(v) (((long)(v) >= 0) && ((long)(v) < 10))
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static const char * const ptrace_ops[] = {
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PT_STRINGS
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};
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#ifdef PT_MACHDEP_STRINGS
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static const char * const ptrace_machdep_ops[] = { PT_MACHDEP_STRINGS };
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#endif
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static const char * const linux_ptrace_ops[] = {
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"PTRACE_TRACEME",
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"PTRACE_PEEKTEXT", "PTRACE_PEEKDATA", "PTRACE_PEEKUSER",
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"PTRACE_POKETEXT", "PTRACE_POKEDATA", "PTRACE_POKEUSER",
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"PTRACE_CONT", "PTRACE_KILL", "PTRACE_SINGLESTEP",
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NULL, NULL,
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"PTRACE_GETREGS", "PTRACE_SETREGS", "PTRACE_GETFPREGS",
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"PTRACE_SETFPREGS", "PTRACE_ATTACH", "PTRACE_DETACH",
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NULL, NULL, NULL, NULL, NULL, NULL,
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"PTRACE_SYSCALL",
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};
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static int fread_tail(void *, size_t, size_t);
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static int dumpheader(struct ktr_header *);
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static int output_ts(const struct timespec *);
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static void output_long(u_long, int);
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static void ioctldecode(u_long);
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static void ktrsyscall(struct ktr_syscall *);
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static void ktrsysret(struct ktr_sysret *, int);
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static void ktrnamei(char *, int);
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static void ktremul(char *, size_t, size_t);
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static void ktrgenio(struct ktr_genio *, int);
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static void ktrpsig(void *, int);
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static void ktrcsw(struct ktr_csw *);
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static void ktruser(struct ktr_user *, int);
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static void ktrmib(int *, int);
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static void ktrexecfd(struct ktr_execfd *);
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static void usage(void) __dead;
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static void eprint(int);
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static void rprint(register_t);
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static const char *signame(long, int);
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static void hexdump_buf(const void *, int, int);
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static void visdump_buf(const void *, int, int);
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int
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main(int argc, char **argv)
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{
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unsigned int ktrlen, size;
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int ch;
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void *m;
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int trpoints = 0;
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int trset = 0;
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const char *emul_name = "netbsd";
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int col;
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char *cp;
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setprogname(argv[0]);
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if (strcmp(getprogname(), "ioctlname") == 0) {
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int i;
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while ((ch = getopt(argc, argv, "e:")) != -1)
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switch (ch) {
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case 'e':
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emul_name = optarg;
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break;
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default:
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usage();
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break;
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}
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setemul(emul_name, 0, 0);
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argv += optind;
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argc -= optind;
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if (argc < 1)
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usage();
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for (i = 0; i < argc; i++) {
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ioctldecode(strtoul(argv[i], NULL, 0));
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(void)putchar('\n');
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}
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return 0;
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}
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timestamp = TIMESTAMP_NONE;
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while ((ch = getopt(argc, argv, "Ee:f:dlm:Nnp:RTt:xX:")) != -1) {
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switch (ch) {
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case 'E':
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timestamp |= TIMESTAMP_ELAPSED;
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break;
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case 'e':
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emul_name = strdup(optarg); /* it's safer to copy it */
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break;
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case 'f':
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tracefile = optarg;
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break;
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case 'd':
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decimal = 1;
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break;
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case 'l':
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tail = 1;
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break;
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case 'p':
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do_pid = strtoul(optarg, &cp, 0);
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if (*cp != 0)
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errx(1,"invalid number %s", optarg);
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break;
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case 'm':
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maxdata = strtoul(optarg, &cp, 0);
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if (*cp != 0)
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errx(1,"invalid number %s", optarg);
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break;
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case 'N':
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numeric++;
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break;
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case 'n':
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plain++;
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break;
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case 'R':
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timestamp |= TIMESTAMP_RELATIVE;
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break;
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case 'T':
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timestamp |= TIMESTAMP_ABSOLUTE;
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break;
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case 't':
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trset = 1;
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trpoints = getpoints(trpoints, optarg);
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if (trpoints < 0)
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errx(1, "unknown trace point in %s", optarg);
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break;
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case 'x':
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word_size = 1;
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break;
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case 'X':
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word_size = strtoul(optarg, &cp, 0);
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if (*cp != 0 || word_size & (word_size - 1) ||
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word_size > 16 || word_size <= 0)
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errx(1, "argument to -X must be "
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"1, 2, 4, 8 or 16");
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break;
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default:
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usage();
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}
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}
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argv += optind;
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argc -= optind;
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if (!trset)
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trpoints = ALL_POINTS;
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if (tracefile == NULL) {
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if (argc == 1) {
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tracefile = argv[0];
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argv++;
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argc--;
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} else
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tracefile = DEF_TRACEFILE;
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}
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if (argc > 0)
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usage();
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setemul(emul_name, 0, 0);
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m = malloc(size = 1024);
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if (m == NULL)
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errx(1, "malloc: %s", strerror(ENOMEM));
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if (!freopen(tracefile, "r", stdin))
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err(1, "%s", tracefile);
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while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
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if (trpoints & (1 << ktr_header.ktr_type) &&
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(do_pid == -1 || ktr_header.ktr_pid == do_pid))
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col = dumpheader(&ktr_header);
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else
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col = -1;
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if ((ktrlen = ktr_header.ktr_len) > INT_MAX)
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errx(1, "bogus length 0x%x", ktrlen);
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if (ktrlen > size) {
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while (ktrlen > size)
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size *= 2;
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m = realloc(m, size);
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if (m == NULL)
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errx(1, "realloc: %s", strerror(ENOMEM));
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}
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if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
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errx(1, "data too short");
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if (col == -1)
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continue;
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/* update context to match currently processed record */
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ectx_sanify(ktr_header.ktr_pid);
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switch (ktr_header.ktr_type) {
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case KTR_SYSCALL:
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ktrsyscall(m);
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break;
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case KTR_SYSRET:
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ktrsysret(m, ktrlen);
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break;
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case KTR_NAMEI:
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ktrnamei(m, ktrlen);
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break;
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case KTR_GENIO:
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ktrgenio(m, ktrlen);
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break;
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case KTR_PSIG:
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ktrpsig(m, ktrlen);
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break;
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case KTR_CSW:
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ktrcsw(m);
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break;
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case KTR_EMUL:
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ktremul(m, ktrlen, size);
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break;
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case KTR_USER:
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ktruser(m, ktrlen);
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break;
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case KTR_EXEC_ARG:
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case KTR_EXEC_ENV:
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visdump_buf(m, ktrlen, col);
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break;
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case KTR_EXEC_FD:
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ktrexecfd(m);
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break;
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case KTR_MIB:
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ktrmib(m, ktrlen);
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break;
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default:
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putchar('\n');
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hexdump_buf(m, ktrlen, word_size ? word_size : 1);
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}
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if (tail)
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(void)fflush(stdout);
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}
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return (0);
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}
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static int
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fread_tail(void *buf, size_t num, size_t size)
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{
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int i;
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while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
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(void)sleep(1);
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clearerr(stdin);
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}
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return (i);
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}
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static int
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dumpheader(struct ktr_header *kth)
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{
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char unknown[64];
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const char *type;
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static struct timespec starttime, prevtime;
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struct timespec temp;
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int col;
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if (__predict_false(kth->ktr_version != KTRFAC_VERSION(KTRFACv2)))
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errx(EXIT_FAILURE, "Unsupported ktrace version %x",
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kth->ktr_version);
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switch (kth->ktr_type) {
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case KTR_SYSCALL:
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type = "CALL";
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break;
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case KTR_SYSRET:
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type = "RET ";
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break;
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case KTR_NAMEI:
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type = "NAMI";
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break;
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case KTR_GENIO:
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type = "GIO ";
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break;
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case KTR_PSIG:
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type = "PSIG";
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break;
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case KTR_CSW:
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type = "CSW ";
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break;
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case KTR_EMUL:
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type = "EMUL";
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break;
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case KTR_USER:
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type = "MISC";
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break;
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case KTR_EXEC_ENV:
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type = "ENV";
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break;
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case KTR_EXEC_ARG:
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type = "ARG";
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break;
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case KTR_EXEC_FD:
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type = "FD";
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break;
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case KTR_SAUPCALL:
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type = "SAU";
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break;
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case KTR_MIB:
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type = "MIB";
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break;
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default:
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(void)snprintf(unknown, sizeof(unknown), "UNKNOWN(%d)",
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kth->ktr_type);
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type = unknown;
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}
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col = printf("%6d %6d ", kth->ktr_pid, kth->ktr_lid);
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col += printf("%-8.*s ", MAXCOMLEN, kth->ktr_comm);
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if (timestamp) {
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if (timestamp & TIMESTAMP_ABSOLUTE) {
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temp.tv_sec = kth->ktr_ts.tv_sec;
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temp.tv_nsec = kth->ktr_ts.tv_nsec;
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col += output_ts(&temp);
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}
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if (timestamp & TIMESTAMP_ELAPSED) {
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if (starttime.tv_sec == 0) {
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starttime.tv_sec = kth->ktr_ts.tv_sec;
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starttime.tv_nsec = kth->ktr_ts.tv_nsec;
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temp.tv_sec = temp.tv_nsec = 0;
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} else
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timespecsub(&kth->ktr_ts, &starttime, &temp);
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col += output_ts(&temp);
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}
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if (timestamp & TIMESTAMP_RELATIVE) {
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if (prevtime.tv_sec == 0)
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temp.tv_sec = temp.tv_nsec = 0;
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else
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timespecsub(&kth->ktr_ts, &prevtime, &temp);
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prevtime.tv_sec = kth->ktr_ts.tv_sec;
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prevtime.tv_nsec = kth->ktr_ts.tv_nsec;
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col += output_ts(&temp);
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}
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}
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col += printf("%-4s ", type);
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return col;
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}
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static int
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output_ts(const struct timespec *ts)
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{
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int col;
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if (__predict_true(ts->tv_sec >= 0))
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col = printf("%lld.%09ld ",
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(long long)ts->tv_sec, (long)ts->tv_nsec);
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else {
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/*
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* The time represented by a timespec object ts is always
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*
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* ts.tv_sec + ts.tv_nsec * 1e-9
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*
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* where ts.tv_sec may be negative but ts.tv_nsec is
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* always in [0, 1e9). So, for example, -1/4 second is
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* represented by the struct timespec object
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*
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* { .tv_sec = -1, .tv_nsec = 750000000 }
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*/
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const struct timespec zero_ts = { 0, 0 };
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struct timespec abs_ts;
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timespecsub(&zero_ts, ts, &abs_ts);
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col = printf("-%lld.%09ld ",
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(long long)abs_ts.tv_sec, (long)abs_ts.tv_nsec);
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}
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return col;
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}
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static void
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output_long(u_long it, int as_x)
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{
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if (cur_emul->flags & EMUL_FLAG_NETBSD32)
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printf(as_x ? "%#x" : "%d", (u_int)it);
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else
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printf(as_x ? "%#lx" : "%ld", it);
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}
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static const char *
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fcntlname(u_long cmd)
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{
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#define FCNTLCASE(a) case a: return # a
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switch (cmd) {
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FCNTLCASE(F_DUPFD);
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FCNTLCASE(F_GETFD);
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FCNTLCASE(F_SETFD);
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FCNTLCASE(F_GETFL);
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FCNTLCASE(F_SETFL);
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FCNTLCASE(F_GETOWN);
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FCNTLCASE(F_SETOWN);
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FCNTLCASE(F_GETLK);
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FCNTLCASE(F_SETLK);
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FCNTLCASE(F_SETLKW);
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FCNTLCASE(F_CLOSEM);
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FCNTLCASE(F_MAXFD);
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FCNTLCASE(F_DUPFD_CLOEXEC);
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FCNTLCASE(F_GETNOSIGPIPE);
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FCNTLCASE(F_SETNOSIGPIPE);
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default:
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return NULL;
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}
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}
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static void
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ioctldecode(u_long cmd)
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{
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char dirbuf[4], *dir = dirbuf;
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int c;
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if (cmd & IOC_IN)
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*dir++ = 'W';
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if (cmd & IOC_OUT)
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*dir++ = 'R';
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*dir = '\0';
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c = (cmd >> 8) & 0xff;
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if (isprint(c))
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printf("_IO%s('%c',", dirbuf, c);
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else
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printf("_IO%s(0x%02x,", dirbuf, c);
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output_long(cmd & 0xff, decimal == 0);
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if ((cmd & IOC_VOID) == 0) {
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putchar(',');
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output_long(IOCPARM_LEN(cmd), decimal == 0);
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}
|
|
putchar(')');
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|
}
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|
|
static void
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|
putprot(int pr)
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|
{
|
|
const char *s = "";
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|
|
|
if (pr == PROT_NONE) {
|
|
fputs("PROT_NONE", stdout);
|
|
return;
|
|
}
|
|
|
|
if (pr & PROT_READ) {
|
|
fputs("PROT_READ", stdout);
|
|
s = "|";
|
|
pr &= ~PROT_READ;
|
|
}
|
|
|
|
if (pr & PROT_WRITE) {
|
|
printf("%sPROT_WRITE", s);
|
|
pr &= ~PROT_WRITE;
|
|
s = "|";
|
|
}
|
|
if (pr & PROT_EXEC) {
|
|
printf("%sPROT_EXEC", s);
|
|
pr &= ~PROT_EXEC;
|
|
s = "|";
|
|
}
|
|
if (pr) {
|
|
printf("%s%#lx", s, (long)pr);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ktrsyscall(struct ktr_syscall *ktr)
|
|
{
|
|
int argcount;
|
|
const struct emulation *emul = cur_emul;
|
|
register_t *ap;
|
|
char c;
|
|
const char *cp;
|
|
const char *sys_name;
|
|
|
|
argcount = ktr->ktr_argsize / sizeof (*ap);
|
|
|
|
emul_changed = 0;
|
|
|
|
if (numeric ||
|
|
((ktr->ktr_code >= emul->nsysnames || ktr->ktr_code < 0))) {
|
|
sys_name = "?";
|
|
(void)printf("[%d]", ktr->ktr_code);
|
|
} else {
|
|
sys_name = emul->sysnames[ktr->ktr_code];
|
|
(void)printf("%s", sys_name);
|
|
}
|
|
#ifdef _LP64
|
|
#define NETBSD32_ "netbsd32_"
|
|
if (cur_emul->flags & EMUL_FLAG_NETBSD32) {
|
|
size_t len = strlen(NETBSD32_);
|
|
if (strncmp(sys_name, NETBSD32_, len) == 0)
|
|
sys_name += len;
|
|
}
|
|
#undef NETBSD32_
|
|
#endif
|
|
|
|
ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
|
|
if (argcount) {
|
|
c = '(';
|
|
if (plain) {
|
|
;
|
|
|
|
} else if (strcmp(sys_name, "exit_group") == 0 ||
|
|
(strcmp(emul->name, "linux") != 0 &&
|
|
strcmp(emul->name, "linux32") != 0 &&
|
|
strcmp(sys_name, "exit") == 0)) {
|
|
ectx_delete();
|
|
|
|
} else if (strcmp(sys_name, "ioctl") == 0 && argcount >= 2) {
|
|
(void)putchar('(');
|
|
output_long((long)*ap, !(decimal || small(*ap)));
|
|
ap++;
|
|
argcount--;
|
|
if ((cp = ioctlname(*ap)) != NULL)
|
|
(void)printf(",%s", cp);
|
|
else {
|
|
(void)putchar(',');
|
|
ioctldecode(*ap);
|
|
}
|
|
ap++;
|
|
argcount--;
|
|
c = ',';
|
|
|
|
} else if (strcmp(sys_name, "fcntl") == 0 && argcount >= 2) {
|
|
(void)putchar('(');
|
|
output_long((long)*ap, !(decimal || small(*ap)));
|
|
ap++;
|
|
argcount--;
|
|
if ((cp = fcntlname(*ap)) != NULL)
|
|
(void)printf(",%s", cp);
|
|
else {
|
|
(void)printf(",%#lx", (unsigned long)*ap);
|
|
}
|
|
ap++;
|
|
argcount--;
|
|
c = ',';
|
|
} else if ((strstr(sys_name, "sigaction") != NULL ||
|
|
strstr(sys_name, "sigvec") != NULL) && argcount >= 1) {
|
|
(void)printf("(SIG%s", signame(ap[0], 1));
|
|
ap += 1;
|
|
argcount -= 1;
|
|
c = ',';
|
|
|
|
} else if ((strcmp(sys_name, "kill") == 0 ||
|
|
strcmp(sys_name, "killpg") == 0) && argcount >= 2) {
|
|
putchar('(');
|
|
output_long((long)ap[0], !(decimal || small(*ap)));
|
|
(void)printf(", SIG%s", signame(ap[1], 1));
|
|
ap += 2;
|
|
argcount -= 2;
|
|
c = ',';
|
|
} else if (strcmp(sys_name, "mprotect") == 0 && argcount >= 3) {
|
|
putchar('(');
|
|
output_long((long)ap[0], !(decimal || small(ap[0])));
|
|
c = ',';
|
|
putchar(c);
|
|
output_long((long)ap[1], !(decimal || small(ap[1])));
|
|
putchar(c);
|
|
putprot(ap[2]);
|
|
ap += 3;
|
|
argcount -= 3;
|
|
c = ',';
|
|
} else if (strcmp(sys_name, "mmap") == 0 && argcount >= 6) {
|
|
char buf[1024];
|
|
putchar('(');
|
|
output_long((long)ap[0], !(decimal || small(ap[0])));
|
|
c = ',';
|
|
putchar(c);
|
|
output_long((long)ap[1], !(decimal || small(ap[1])));
|
|
putchar(c);
|
|
putprot(ap[2]);
|
|
snprintb(buf, sizeof(buf), MAP_FMT, ap[3]);
|
|
printf(",%s", buf);
|
|
ap += 4;
|
|
argcount -= 4;
|
|
c = ',';
|
|
} else if (strcmp(sys_name, "ptrace") == 0 && argcount >= 1) {
|
|
putchar('(');
|
|
if (strcmp(emul->name, "linux") == 0 ||
|
|
strcmp(emul->name, "linux32") == 0) {
|
|
if ((long)*ap >= 0 && *ap <
|
|
(register_t)(sizeof(linux_ptrace_ops) /
|
|
sizeof(linux_ptrace_ops[0])))
|
|
(void)printf("%s",
|
|
linux_ptrace_ops[*ap]);
|
|
else
|
|
output_long((long)*ap, 1);
|
|
} else {
|
|
if ((long)*ap >= 0 && *ap < (register_t)
|
|
__arraycount(ptrace_ops))
|
|
(void)printf("%s", ptrace_ops[*ap]);
|
|
#ifdef PT_MACHDEP_STRINGS
|
|
else if (*ap >= PT_FIRSTMACH &&
|
|
*ap - PT_FIRSTMACH < (register_t)
|
|
__arraycount(ptrace_machdep_ops))
|
|
(void)printf("%s", ptrace_machdep_ops[*ap - PT_FIRSTMACH]);
|
|
#endif
|
|
else
|
|
output_long((long)*ap, 1);
|
|
}
|
|
ap++;
|
|
argcount--;
|
|
c = ',';
|
|
|
|
}
|
|
while (argcount > 0) {
|
|
putchar(c);
|
|
output_long((long)*ap, !(decimal || small(*ap)));
|
|
ap++;
|
|
argcount--;
|
|
c = ',';
|
|
}
|
|
(void)putchar(')');
|
|
}
|
|
(void)putchar('\n');
|
|
}
|
|
|
|
static void
|
|
ktrsysret(struct ktr_sysret *ktr, int len)
|
|
{
|
|
const struct emulation *emul;
|
|
int error = ktr->ktr_error;
|
|
int code = ktr->ktr_code;
|
|
|
|
if (emul_changed) {
|
|
/* In order to get system call name right in execve return */
|
|
emul = prev_emul;
|
|
emul_changed = 0;
|
|
} else
|
|
emul = cur_emul;
|
|
|
|
if (numeric || ((code >= emul->nsysnames || code < 0 || plain > 1)))
|
|
(void)printf("[%d] ", code);
|
|
else
|
|
(void)printf("%s ", emul->sysnames[code]);
|
|
|
|
switch (error) {
|
|
case 0:
|
|
rprint(ktr->ktr_retval);
|
|
if (len > (int)offsetof(struct ktr_sysret, ktr_retval_1) &&
|
|
ktr->ktr_retval_1 != 0) {
|
|
(void)printf(", ");
|
|
rprint(ktr->ktr_retval_1);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
eprint(error);
|
|
break;
|
|
}
|
|
(void)putchar('\n');
|
|
}
|
|
|
|
static void
|
|
ktrexecfd(struct ktr_execfd *ktr)
|
|
{
|
|
static const char *dnames[] = { DTYPE_NAMES };
|
|
if (ktr->ktr_dtype < __arraycount(dnames))
|
|
printf("%s %d\n", dnames[ktr->ktr_dtype], ktr->ktr_fd);
|
|
else
|
|
printf("UNKNOWN(%u) %d\n", ktr->ktr_dtype, ktr->ktr_fd);
|
|
}
|
|
|
|
static void
|
|
rprint(register_t ret)
|
|
{
|
|
|
|
if (!plain) {
|
|
output_long(ret, 0);
|
|
if (!small(ret)) {
|
|
putchar('/');
|
|
output_long(ret, 1);
|
|
}
|
|
} else {
|
|
output_long(ret, !(decimal || small(ret)));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We print the original emulation's error numerically, but we
|
|
* translate it to netbsd to print it symbolically.
|
|
*/
|
|
static void
|
|
eprint(int e)
|
|
{
|
|
int i = e;
|
|
|
|
if (cur_emul->errnomap) {
|
|
|
|
/* No remapping for ERESTART and EJUSTRETURN */
|
|
/* Kludge for linux that has negative error numbers */
|
|
if (cur_emul->errnomap[2] > 0 && e < 0)
|
|
goto normal;
|
|
|
|
for (i = 0; i < cur_emul->nerrnomap; i++)
|
|
if (e == cur_emul->errnomap[i])
|
|
break;
|
|
|
|
if (i == cur_emul->nerrnomap) {
|
|
printf("-1 unknown errno %d", e);
|
|
return;
|
|
}
|
|
}
|
|
|
|
normal:
|
|
switch (i) {
|
|
case ERESTART:
|
|
(void)printf("RESTART");
|
|
break;
|
|
|
|
case EJUSTRETURN:
|
|
(void)printf("JUSTRETURN");
|
|
break;
|
|
|
|
default:
|
|
(void)printf("-1 errno %d", e);
|
|
if (!plain)
|
|
(void)printf(" %s", strerror(i));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ktrnamei(char *cp, int len)
|
|
{
|
|
|
|
(void)printf("\"%.*s\"\n", len, cp);
|
|
}
|
|
|
|
static void
|
|
ktremul(char *name, size_t len, size_t bufsize)
|
|
{
|
|
|
|
if (len >= bufsize)
|
|
len = bufsize - 1;
|
|
|
|
name[len] = '\0';
|
|
setemul(name, ktr_header.ktr_pid, 1);
|
|
emul_changed = 1;
|
|
|
|
(void)printf("\"%s\"\n", name);
|
|
}
|
|
|
|
static void
|
|
hexdump_buf(const void *vdp, int datalen, int word_sz)
|
|
{
|
|
const char hex[] = "0123456789abcdef";
|
|
char chars[16], prev[16];
|
|
char bytes[16 * 3 + 4];
|
|
const unsigned char *dp = vdp;
|
|
const unsigned char *datalim = dp + datalen;
|
|
const unsigned char *line_end;
|
|
int off, l = 0, c;
|
|
char *cp, *bp;
|
|
int divmask = word_sz - 1; /* block size in bytes */
|
|
int gdelim = 3; /* gap between blocks */
|
|
int bsize = 2; /* increment for each byte */
|
|
int width;
|
|
int dupl = 0;
|
|
#if _BYTE_ORDER == _LITTLE_ENDIAN
|
|
int bswap = word_sz - 1;
|
|
#else
|
|
#define bswap 0
|
|
#endif
|
|
|
|
switch (word_sz) {
|
|
case 2:
|
|
gdelim = 2;
|
|
break;
|
|
case 1:
|
|
divmask = 7;
|
|
bsize = 3;
|
|
gdelim = 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
width = 16 * bsize + (16 / (divmask + 1)) * gdelim;
|
|
if (word_sz != 1)
|
|
width += 2;
|
|
|
|
for (off = 0; dp < datalim; off += l) {
|
|
memset(bytes, ' ', sizeof bytes);
|
|
line_end = dp + 16;
|
|
if (line_end >= datalim) {
|
|
line_end = datalim;
|
|
dupl |= 1; /* need to print */
|
|
} else {
|
|
if (dupl == 0 || memcmp(dp, prev, sizeof chars))
|
|
dupl |= 1;
|
|
}
|
|
|
|
if (!(dupl & 1)) {
|
|
/* This is a duplicate of the line above, count 'em */
|
|
dupl += 2;
|
|
dp = line_end;
|
|
continue;
|
|
}
|
|
|
|
if (dupl > 3) {
|
|
/* previous line as a duplicate */
|
|
if (dupl == 5)
|
|
/* Only one duplicate, print line */
|
|
printf("\t%-5.3x%.*s%.*s\n",
|
|
off - l, width, bytes, l, chars);
|
|
else
|
|
printf("\t%.*s\n",
|
|
snprintf(NULL, 0, "%3x", off), "*****");
|
|
}
|
|
|
|
for (l = 0, bp = bytes, cp = chars; dp < line_end; l++) {
|
|
c = *dp++;
|
|
prev[l] = c;
|
|
if ((l & divmask) == 0)
|
|
bp += gdelim;
|
|
bp[(l ^ bswap) * bsize] = hex[c >> 4];
|
|
bp[(l ^ bswap) * bsize + 1] = hex[c & 0xf];
|
|
*cp++ = isgraph(c) ? c : '.';
|
|
}
|
|
|
|
printf("\t%-5.3x%.*s%.*s\n", off, width, bytes, l, chars);
|
|
dupl = 2;
|
|
}
|
|
}
|
|
|
|
static void
|
|
visdump_buf(const void *vdp, int datalen, int col)
|
|
{
|
|
const unsigned char *dp = vdp;
|
|
char *cp;
|
|
int width;
|
|
char visbuf[5];
|
|
static int screenwidth = 0;
|
|
|
|
if (screenwidth == 0) {
|
|
struct winsize ws;
|
|
|
|
if (!plain && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
|
|
ws.ws_col > 8)
|
|
screenwidth = ws.ws_col;
|
|
else
|
|
screenwidth = 80;
|
|
}
|
|
|
|
(void)printf("\"");
|
|
col++;
|
|
for (; datalen > 0; datalen--, dp++) {
|
|
(void)svis(visbuf, *dp, VIS_CSTYLE,
|
|
datalen > 1 ? *(dp + 1) : 0, "\"\n");
|
|
cp = visbuf;
|
|
/*
|
|
* Keep track of printables and
|
|
* space chars (like fold(1)).
|
|
*/
|
|
if (col == 0) {
|
|
(void)putchar('\t');
|
|
col = 8;
|
|
}
|
|
switch (*cp) {
|
|
case '\n':
|
|
col = 0;
|
|
(void)putchar('\n');
|
|
continue;
|
|
case '\t':
|
|
width = 8 - (col & 07);
|
|
break;
|
|
default:
|
|
width = strlen(cp);
|
|
}
|
|
if (col + width > (screenwidth - 2)) {
|
|
(void)printf("\\\n\t");
|
|
col = 8;
|
|
if (*cp == '\t')
|
|
width = 8;
|
|
}
|
|
col += width;
|
|
do {
|
|
(void)putchar(*cp++);
|
|
} while (*cp);
|
|
}
|
|
if (col == 0)
|
|
(void)printf(" ");
|
|
(void)printf("\"\n");
|
|
}
|
|
|
|
static void
|
|
ktrgenio(struct ktr_genio *ktr, int len)
|
|
{
|
|
int datalen = len - sizeof (struct ktr_genio);
|
|
char *dp = (char *)ktr + sizeof (struct ktr_genio);
|
|
|
|
if (ktr->ktr_fd != -1)
|
|
printf("fd %d ", ktr->ktr_fd);
|
|
printf("%s %d bytes\n",
|
|
ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
|
|
if (maxdata == 0)
|
|
return;
|
|
if (maxdata > 0 && datalen > maxdata)
|
|
datalen = maxdata;
|
|
if (word_size) {
|
|
hexdump_buf(dp, datalen, word_size);
|
|
return;
|
|
}
|
|
(void)printf(" ");
|
|
visdump_buf(dp, datalen, 7);
|
|
}
|
|
|
|
static void
|
|
ktrpsig(void *v, int len)
|
|
{
|
|
int signo, first;
|
|
struct {
|
|
struct ktr_psig ps;
|
|
siginfo_t si;
|
|
} *psig = v;
|
|
siginfo_t *si = &psig->si;
|
|
const char *code;
|
|
|
|
(void)printf("SIG%s ", signame(psig->ps.signo, 0));
|
|
if (psig->ps.action == SIG_DFL)
|
|
(void)printf("SIG_DFL");
|
|
else {
|
|
(void)printf("caught handler=%p mask=(", psig->ps.action);
|
|
first = 1;
|
|
for (signo = 1; signo < NSIG; signo++) {
|
|
if (sigismember(&psig->ps.mask, signo)) {
|
|
if (first)
|
|
first = 0;
|
|
else
|
|
(void)printf(",");
|
|
(void)printf("%d", signo);
|
|
}
|
|
}
|
|
(void)printf(")");
|
|
}
|
|
switch (len) {
|
|
case sizeof(struct ktr_psig):
|
|
if (psig->ps.code)
|
|
printf(" code=0x%x", psig->ps.code);
|
|
printf(psig->ps.action == SIG_DFL ? "\n" : ")\n");
|
|
return;
|
|
case sizeof(*psig):
|
|
if (si->si_code == 0) {
|
|
printf(": code=SI_USER sent by pid=%d, uid=%d)\n",
|
|
si->si_pid, si->si_uid);
|
|
return;
|
|
}
|
|
|
|
if (si->si_code < 0) {
|
|
switch (si->si_code) {
|
|
case SI_TIMER:
|
|
case SI_QUEUE:
|
|
printf(": code=%s sent by pid=%d, uid=%d with "
|
|
"sigval %p)\n", si->si_code == SI_TIMER ?
|
|
"SI_TIMER" : "SI_QUEUE", si->si_pid,
|
|
si->si_uid, si->si_value.sival_ptr);
|
|
return;
|
|
case SI_ASYNCIO:
|
|
case SI_MESGQ:
|
|
printf(": code=%s with sigval %p)\n",
|
|
si->si_code == SI_ASYNCIO ?
|
|
"SI_ASYNCIO" : "SI_MESGQ",
|
|
si->si_value.sival_ptr);
|
|
return;
|
|
case SI_LWP:
|
|
printf(": code=SI_LWP sent by pid=%d, "
|
|
"uid=%d)\n", si->si_pid, si->si_uid);
|
|
return;
|
|
default:
|
|
code = NULL;
|
|
break;
|
|
}
|
|
if (code)
|
|
printf(": code=%s unimplemented)\n", code);
|
|
else
|
|
printf(": code=%d unimplemented)\n",
|
|
si->si_code);
|
|
return;
|
|
}
|
|
|
|
if (si->si_code == SI_NOINFO) {
|
|
printf(": code=SI_NOINFO\n");
|
|
return;
|
|
}
|
|
|
|
code = siginfocodename(si->si_signo, si->si_code);
|
|
switch (si->si_signo) {
|
|
case SIGCHLD:
|
|
printf(": code=%s child pid=%d, uid=%d, "
|
|
" status=%u, utime=%lu, stime=%lu)\n",
|
|
code, si->si_pid,
|
|
si->si_uid, si->si_status,
|
|
(unsigned long) si->si_utime,
|
|
(unsigned long) si->si_stime);
|
|
return;
|
|
case SIGILL:
|
|
case SIGFPE:
|
|
case SIGSEGV:
|
|
case SIGBUS:
|
|
case SIGTRAP:
|
|
printf(": code=%s, addr=%p, trap=%d)\n",
|
|
code, si->si_addr, si->si_trap);
|
|
return;
|
|
case SIGIO:
|
|
printf(": code=%s, fd=%d, band=%lx)\n",
|
|
code, si->si_fd, si->si_band);
|
|
return;
|
|
default:
|
|
printf(": code=%s, errno=%d)\n",
|
|
code, si->si_errno);
|
|
return;
|
|
}
|
|
/*NOTREACHED*/
|
|
default:
|
|
warnx("Unhandled size %d for ktrpsig", len);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ktrcsw(struct ktr_csw *cs)
|
|
{
|
|
|
|
(void)printf("%s %s\n", cs->out ? "stop" : "resume",
|
|
cs->user ? "user" : "kernel");
|
|
}
|
|
|
|
static void
|
|
ktruser_msghdr(const char *name, const void *buf, size_t len)
|
|
{
|
|
struct msghdr m;
|
|
|
|
if (len != sizeof(m))
|
|
warnx("%.*s: len %zu != %zu", KTR_USER_MAXIDLEN, name, len,
|
|
sizeof(m));
|
|
memcpy(&m, buf, len);
|
|
printf("%.*s: [name=%p, namelen=%zu, iov=%p, iovlen=%zu, control=%p, "
|
|
"controllen=%zu, flags=%x]\n", KTR_USER_MAXIDLEN, name,
|
|
m.msg_name, (size_t)m.msg_namelen, m.msg_iov, (size_t)m.msg_iovlen,
|
|
m.msg_control, (size_t)m.msg_controllen, m.msg_flags);
|
|
}
|
|
|
|
static void
|
|
ktruser_soname(const char *name, const void *buf, size_t len)
|
|
{
|
|
char fmt[512];
|
|
sockaddr_snprintf(fmt, sizeof(fmt), "%a", buf);
|
|
printf("%.*s: [%s]\n", KTR_USER_MAXIDLEN, name, fmt);
|
|
}
|
|
|
|
static void
|
|
ktruser_control(const char *name, const void *buf, size_t len)
|
|
{
|
|
struct cmsghdr m;
|
|
|
|
if (len < sizeof(m))
|
|
warnx("%.*s: len %zu < %zu", KTR_USER_MAXIDLEN, name, len,
|
|
sizeof(m));
|
|
memcpy(&m, buf, sizeof(m));
|
|
printf("%.*s: [len=%zu, level=%d, type=%d]\n", KTR_USER_MAXIDLEN, name,
|
|
(size_t)m.cmsg_len, m.cmsg_level, m.cmsg_type);
|
|
}
|
|
|
|
static void
|
|
ktruser_misc(const char *name, const void *buf, size_t len)
|
|
{
|
|
size_t i;
|
|
const char *dta = buf;
|
|
|
|
printf("%.*s: %zu, ", KTR_USER_MAXIDLEN, name, len);
|
|
for (i = 0; i < len; i++)
|
|
printf("%02x", (unsigned char)dta[i]);
|
|
printf("\n");
|
|
}
|
|
|
|
static struct {
|
|
const char *name;
|
|
void (*func)(const char *, const void *, size_t);
|
|
} nv[] = {
|
|
{ "msghdr", ktruser_msghdr },
|
|
{ "mbsoname", ktruser_soname },
|
|
{ "mbcontrol", ktruser_control },
|
|
{ NULL, ktruser_misc },
|
|
};
|
|
|
|
static void
|
|
ktruser(struct ktr_user *usr, int len)
|
|
{
|
|
unsigned char *dta;
|
|
|
|
len -= sizeof(struct ktr_user);
|
|
dta = (unsigned char *)(usr + 1);
|
|
if (word_size) {
|
|
printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
|
|
printf("\n");
|
|
hexdump_buf(dta, len, word_size);
|
|
return;
|
|
}
|
|
for (size_t j = 0; j < __arraycount(nv); j++)
|
|
if (nv[j].name == NULL ||
|
|
strncmp(nv[j].name, usr->ktr_id, KTR_USER_MAXIDLEN) == 0) {
|
|
(*nv[j].func)(usr->ktr_id, dta, len);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ktrmib(int *namep, int len)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < (len / sizeof(*namep)); i++)
|
|
printf("%s%d", (i == 0) ? "" : ".", namep[i]);
|
|
printf("\n");
|
|
}
|
|
|
|
static const char *
|
|
signame(long sig, int xlat)
|
|
{
|
|
static char buf[64];
|
|
|
|
if (sig == 0)
|
|
return " 0";
|
|
else if (sig < 0 || sig >= NSIG) {
|
|
(void)snprintf(buf, sizeof(buf), "*unknown %ld*", sig);
|
|
return buf;
|
|
} else
|
|
return sys_signame[(xlat && cur_emul->signalmap != NULL) ?
|
|
cur_emul->signalmap[sig] : sig];
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
if (strcmp(getprogname(), "ioctlname") == 0) {
|
|
(void)fprintf(stderr, "Usage: %s [-e emulation] <ioctl> ...\n",
|
|
getprogname());
|
|
} else {
|
|
(void)fprintf(stderr, "Usage: %s [-dElNnRT] [-e emulation] "
|
|
"[-f file] [-m maxdata] [-p pid]\n [-t trstr] "
|
|
"[-x | -X size] [file]\n", getprogname());
|
|
}
|
|
exit(1);
|
|
}
|