freebsd-nq/usr.bin/kdump/kdump.c
Warner Losh fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00

2027 lines
43 KiB
C

/*-
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1988, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93";
#endif
#endif /* not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#define _WANT_KERNEL_ERRNO
#include <sys/param.h>
#include <sys/capsicum.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/ktrace.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/sysent.h>
#include <sys/umtx.h>
#include <sys/un.h>
#include <sys/queue.h>
#include <sys/wait.h>
#ifdef HAVE_LIBCASPER
#include <sys/nv.h>
#endif
#include <arpa/inet.h>
#include <netinet/in.h>
#include <ctype.h>
#include <capsicum_helpers.h>
#include <err.h>
#include <grp.h>
#include <inttypes.h>
#include <locale.h>
#include <netdb.h>
#include <nl_types.h>
#include <pwd.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysdecode.h>
#include <time.h>
#include <unistd.h>
#include <vis.h>
#include "ktrace.h"
#ifdef HAVE_LIBCASPER
#include <libcasper.h>
#include <casper/cap_grp.h>
#include <casper/cap_pwd.h>
#endif
u_int abidump(struct ktr_header *);
int fetchprocinfo(struct ktr_header *, u_int *);
int fread_tail(void *, int, int);
void dumpheader(struct ktr_header *);
void ktrsyscall(struct ktr_syscall *, u_int);
void ktrsysret(struct ktr_sysret *, u_int);
void ktrnamei(char *, int);
void hexdump(char *, int, int);
void visdump(char *, int, int);
void ktrgenio(struct ktr_genio *, int);
void ktrpsig(struct ktr_psig *);
void ktrcsw(struct ktr_csw *);
void ktrcsw_old(struct ktr_csw_old *);
void ktruser(int, void *);
void ktrcaprights(cap_rights_t *);
void ktritimerval(struct itimerval *it);
void ktrsockaddr(struct sockaddr *);
void ktrstat(struct stat *);
void ktrstruct(char *, size_t);
void ktrcapfail(struct ktr_cap_fail *);
void ktrfault(struct ktr_fault *);
void ktrfaultend(struct ktr_faultend *);
void usage(void);
#define TIMESTAMP_NONE 0x0
#define TIMESTAMP_ABSOLUTE 0x1
#define TIMESTAMP_ELAPSED 0x2
#define TIMESTAMP_RELATIVE 0x4
static int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
resolv = 0, abiflag = 0, syscallno = 0;
static const char *tracefile = DEF_TRACEFILE;
static struct ktr_header ktr_header;
#define TIME_FORMAT "%b %e %T %Y"
#define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
#define print_number64(first,i,n,c) do { \
uint64_t __v; \
\
if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \
(i)++; \
(n)--; \
} \
if (quad_slots == 2) \
__v = (uint64_t)(uint32_t)(i)[0] | \
((uint64_t)(uint32_t)(i)[1]) << 32; \
else \
__v = (uint64_t)*(i); \
if (decimal) \
printf("%c%jd", (c), (intmax_t)__v); \
else \
printf("%c%#jx", (c), (uintmax_t)__v); \
(i) += quad_slots; \
(n) -= quad_slots; \
(c) = ','; \
} while (0)
#define print_number(i,n,c) do { \
if (decimal) \
printf("%c%jd", c, (intmax_t)*i); \
else \
printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \
i++; \
n--; \
c = ','; \
} while (0)
struct proc_info
{
TAILQ_ENTRY(proc_info) info;
u_int sv_flags;
pid_t pid;
};
static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
#ifdef HAVE_LIBCASPER
static cap_channel_t *cappwd, *capgrp;
#endif
static void
strerror_init(void)
{
/*
* Cache NLS data before entering capability mode.
* XXXPJD: There should be strerror_init() and strsignal_init() in libc.
*/
(void)catopen("libc", NL_CAT_LOCALE);
}
static void
localtime_init(void)
{
time_t ltime;
/*
* Allow localtime(3) to cache /etc/localtime content before entering
* capability mode.
* XXXPJD: There should be localtime_init() in libc.
*/
(void)time(&ltime);
(void)localtime(&ltime);
}
#ifdef HAVE_LIBCASPER
static int
cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
{
cap_channel_t *capcas, *cappwdloc, *capgrploc;
const char *cmds[1], *fields[1];
capcas = cap_init();
if (capcas == NULL) {
err(1, "unable to create casper process");
exit(1);
}
cappwdloc = cap_service_open(capcas, "system.pwd");
capgrploc = cap_service_open(capcas, "system.grp");
/* Casper capability no longer needed. */
cap_close(capcas);
if (cappwdloc == NULL || capgrploc == NULL) {
if (cappwdloc == NULL)
warn("unable to open system.pwd service");
if (capgrploc == NULL)
warn("unable to open system.grp service");
exit(1);
}
/* Limit system.pwd to only getpwuid() function and pw_name field. */
cmds[0] = "getpwuid";
if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
err(1, "unable to limit system.pwd service");
fields[0] = "pw_name";
if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
err(1, "unable to limit system.pwd service");
/* Limit system.grp to only getgrgid() function and gr_name field. */
cmds[0] = "getgrgid";
if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
err(1, "unable to limit system.grp service");
fields[0] = "gr_name";
if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
err(1, "unable to limit system.grp service");
*cappwdp = cappwdloc;
*capgrpp = capgrploc;
return (0);
}
#endif /* HAVE_LIBCASPER */
static void
print_integer_arg(const char *(*decoder)(int), int value)
{
const char *str;
str = decoder(value);
if (str != NULL)
printf("%s", str);
else {
if (decimal)
printf("<invalid=%d>", value);
else
printf("<invalid=%#x>", value);
}
}
/* Like print_integer_arg but unknown values are treated as valid. */
static void
print_integer_arg_valid(const char *(*decoder)(int), int value)
{
const char *str;
str = decoder(value);
if (str != NULL)
printf("%s", str);
else {
if (decimal)
printf("%d", value);
else
printf("%#x", value);
}
}
static void
print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
{
bool invalid;
int rem;
printf("%#x<", value);
invalid = !decoder(stdout, value, &rem);
printf(">");
if (invalid)
printf("<invalid>%u", rem);
}
static void
print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
{
bool invalid;
int rem;
if (value == 0) {
printf("0");
return;
}
printf("%#x<", value);
invalid = !decoder(stdout, value, &rem);
printf(">");
if (invalid)
printf("<invalid>%u", rem);
}
static void
decode_fileflags(fflags_t value)
{
bool invalid;
fflags_t rem;
if (value == 0) {
printf("0");
return;
}
printf("%#x<", value);
invalid = !sysdecode_fileflags(stdout, value, &rem);
printf(">");
if (invalid)
printf("<invalid>%u", rem);
}
static void
decode_filemode(int value)
{
bool invalid;
int rem;
if (value == 0) {
printf("0");
return;
}
printf("%#o<", value);
invalid = !sysdecode_filemode(stdout, value, &rem);
printf(">");
if (invalid)
printf("<invalid>%u", rem);
}
static void
print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
{
bool invalid;
uint32_t rem;
printf("%#x<", value);
invalid = !decoder(stdout, value, &rem);
printf(">");
if (invalid)
printf("<invalid>%u", rem);
}
static void
print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
{
bool invalid;
u_long rem;
if (value == 0) {
printf("0");
return;
}
printf("%#lx<", value);
invalid = !decoder(stdout, value, &rem);
printf(">");
if (invalid)
printf("<invalid>%lu", rem);
}
int
main(int argc, char *argv[])
{
int ch, ktrlen, size;
void *m;
int trpoints = ALL_POINTS;
int drop_logged;
pid_t pid = 0;
u_int sv_flags;
setlocale(LC_CTYPE, "");
timestamp = TIMESTAMP_NONE;
while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
switch (ch) {
case 'A':
abiflag = 1;
break;
case 'f':
tracefile = optarg;
break;
case 'd':
decimal = 1;
break;
case 'l':
tail = 1;
break;
case 'm':
maxdata = atoi(optarg);
break;
case 'n':
fancy = 0;
break;
case 'p':
pid = atoi(optarg);
break;
case 'r':
resolv = 1;
break;
case 'S':
syscallno = 1;
break;
case 's':
suppressdata = 1;
break;
case 'E':
timestamp |= TIMESTAMP_ELAPSED;
break;
case 'H':
threads = 1;
break;
case 'R':
timestamp |= TIMESTAMP_RELATIVE;
break;
case 'T':
timestamp |= TIMESTAMP_ABSOLUTE;
break;
case 't':
trpoints = getpoints(optarg);
if (trpoints < 0)
errx(1, "unknown trace point in %s", optarg);
break;
default:
usage();
}
if (argc > optind)
usage();
m = malloc(size = 1025);
if (m == NULL)
errx(1, "%s", strerror(ENOMEM));
if (strcmp(tracefile, "-") != 0)
if (!freopen(tracefile, "r", stdin))
err(1, "%s", tracefile);
strerror_init();
localtime_init();
#ifdef HAVE_LIBCASPER
if (resolv != 0) {
if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
cappwd = NULL;
capgrp = NULL;
}
}
if (resolv == 0 || (cappwd != NULL && capgrp != NULL)) {
if (cap_enter() < 0 && errno != ENOSYS)
err(1, "unable to enter capability mode");
}
#else
if (resolv == 0) {
if (cap_enter() < 0 && errno != ENOSYS)
err(1, "unable to enter capability mode");
}
#endif
if (caph_limit_stdio() == -1)
err(1, "unable to limit stdio");
TAILQ_INIT(&trace_procs);
drop_logged = 0;
while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
if (ktr_header.ktr_type & KTR_DROP) {
ktr_header.ktr_type &= ~KTR_DROP;
if (!drop_logged && threads) {
printf(
"%6jd %6jd %-8.*s Events dropped.\n",
(intmax_t)ktr_header.ktr_pid,
ktr_header.ktr_tid > 0 ?
(intmax_t)ktr_header.ktr_tid : 0,
MAXCOMLEN, ktr_header.ktr_comm);
drop_logged = 1;
} else if (!drop_logged) {
printf("%6jd %-8.*s Events dropped.\n",
(intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
ktr_header.ktr_comm);
drop_logged = 1;
}
}
if (trpoints & (1<<ktr_header.ktr_type))
if (pid == 0 || ktr_header.ktr_pid == pid ||
ktr_header.ktr_tid == pid)
dumpheader(&ktr_header);
if ((ktrlen = ktr_header.ktr_len) < 0)
errx(1, "bogus length 0x%x", ktrlen);
if (ktrlen > size) {
m = realloc(m, ktrlen+1);
if (m == NULL)
errx(1, "%s", strerror(ENOMEM));
size = ktrlen;
}
if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
errx(1, "data too short");
if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
continue;
sv_flags = abidump(&ktr_header);
if (pid && ktr_header.ktr_pid != pid &&
ktr_header.ktr_tid != pid)
continue;
if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
continue;
drop_logged = 0;
switch (ktr_header.ktr_type) {
case KTR_SYSCALL:
ktrsyscall((struct ktr_syscall *)m, sv_flags);
break;
case KTR_SYSRET:
ktrsysret((struct ktr_sysret *)m, sv_flags);
break;
case KTR_NAMEI:
case KTR_SYSCTL:
ktrnamei(m, ktrlen);
break;
case KTR_GENIO:
ktrgenio((struct ktr_genio *)m, ktrlen);
break;
case KTR_PSIG:
ktrpsig((struct ktr_psig *)m);
break;
case KTR_CSW:
if (ktrlen == sizeof(struct ktr_csw_old))
ktrcsw_old((struct ktr_csw_old *)m);
else
ktrcsw((struct ktr_csw *)m);
break;
case KTR_USER:
ktruser(ktrlen, m);
break;
case KTR_STRUCT:
ktrstruct(m, ktrlen);
break;
case KTR_CAPFAIL:
ktrcapfail((struct ktr_cap_fail *)m);
break;
case KTR_FAULT:
ktrfault((struct ktr_fault *)m);
break;
case KTR_FAULTEND:
ktrfaultend((struct ktr_faultend *)m);
break;
default:
printf("\n");
break;
}
if (tail)
fflush(stdout);
}
return 0;
}
int
fread_tail(void *buf, int size, int num)
{
int i;
while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
sleep(1);
clearerr(stdin);
}
return (i);
}
int
fetchprocinfo(struct ktr_header *kth, u_int *flags)
{
struct proc_info *pi;
switch (kth->ktr_type) {
case KTR_PROCCTOR:
TAILQ_FOREACH(pi, &trace_procs, info) {
if (pi->pid == kth->ktr_pid) {
TAILQ_REMOVE(&trace_procs, pi, info);
break;
}
}
pi = malloc(sizeof(struct proc_info));
if (pi == NULL)
errx(1, "%s", strerror(ENOMEM));
pi->sv_flags = *flags;
pi->pid = kth->ktr_pid;
TAILQ_INSERT_TAIL(&trace_procs, pi, info);
return (1);
case KTR_PROCDTOR:
TAILQ_FOREACH(pi, &trace_procs, info) {
if (pi->pid == kth->ktr_pid) {
TAILQ_REMOVE(&trace_procs, pi, info);
free(pi);
break;
}
}
return (1);
}
return (0);
}
u_int
abidump(struct ktr_header *kth)
{
struct proc_info *pi;
const char *abi;
const char *arch;
u_int flags = 0;
TAILQ_FOREACH(pi, &trace_procs, info) {
if (pi->pid == kth->ktr_pid) {
flags = pi->sv_flags;
break;
}
}
if (abiflag == 0)
return (flags);
switch (flags & SV_ABI_MASK) {
case SV_ABI_LINUX:
abi = "L";
break;
case SV_ABI_FREEBSD:
abi = "F";
break;
case SV_ABI_CLOUDABI:
abi = "C";
break;
default:
abi = "U";
break;
}
if (flags & SV_LP64)
arch = "64";
else if (flags & SV_ILP32)
arch = "32";
else
arch = "00";
printf("%s%s ", abi, arch);
return (flags);
}
void
dumpheader(struct ktr_header *kth)
{
static char unknown[64];
static struct timeval prevtime, prevtime_e;
struct timeval temp;
const char *type;
const char *sign;
switch (kth->ktr_type) {
case KTR_SYSCALL:
type = "CALL";
break;
case KTR_SYSRET:
type = "RET ";
break;
case KTR_NAMEI:
type = "NAMI";
break;
case KTR_GENIO:
type = "GIO ";
break;
case KTR_PSIG:
type = "PSIG";
break;
case KTR_CSW:
type = "CSW ";
break;
case KTR_USER:
type = "USER";
break;
case KTR_STRUCT:
type = "STRU";
break;
case KTR_SYSCTL:
type = "SCTL";
break;
case KTR_PROCCTOR:
/* FALLTHROUGH */
case KTR_PROCDTOR:
return;
case KTR_CAPFAIL:
type = "CAP ";
break;
case KTR_FAULT:
type = "PFLT";
break;
case KTR_FAULTEND:
type = "PRET";
break;
default:
sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
type = unknown;
}
/*
* The ktr_tid field was previously the ktr_buffer field, which held
* the kernel pointer value for the buffer associated with data
* following the record header. It now holds a threadid, but only
* for trace files after the change. Older trace files still contain
* kernel pointers. Detect this and suppress the results by printing
* negative tid's as 0.
*/
if (threads)
printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
MAXCOMLEN, kth->ktr_comm);
else
printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
kth->ktr_comm);
if (timestamp) {
if (timestamp & TIMESTAMP_ABSOLUTE) {
printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
kth->ktr_time.tv_usec);
}
if (timestamp & TIMESTAMP_ELAPSED) {
if (prevtime_e.tv_sec == 0)
prevtime_e = kth->ktr_time;
timersub(&kth->ktr_time, &prevtime_e, &temp);
printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
temp.tv_usec);
}
if (timestamp & TIMESTAMP_RELATIVE) {
if (prevtime.tv_sec == 0)
prevtime = kth->ktr_time;
if (timercmp(&kth->ktr_time, &prevtime, <)) {
timersub(&prevtime, &kth->ktr_time, &temp);
sign = "-";
} else {
timersub(&kth->ktr_time, &prevtime, &temp);
sign = "";
}
prevtime = kth->ktr_time;
printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
temp.tv_usec);
}
}
printf("%s ", type);
}
#include <sys/syscall.h>
static void
ioctlname(unsigned long val)
{
const char *str;
str = sysdecode_ioctlname(val);
if (str != NULL)
printf("%s", str);
else if (decimal)
printf("%lu", val);
else
printf("%#lx", val);
}
static enum sysdecode_abi
syscallabi(u_int sv_flags)
{
if (sv_flags == 0)
return (SYSDECODE_ABI_FREEBSD);
switch (sv_flags & SV_ABI_MASK) {
case SV_ABI_FREEBSD:
return (SYSDECODE_ABI_FREEBSD);
#if defined(__amd64__) || defined(__i386__)
case SV_ABI_LINUX:
#ifdef __amd64__
if (sv_flags & SV_ILP32)
return (SYSDECODE_ABI_LINUX32);
#endif
return (SYSDECODE_ABI_LINUX);
#endif
#if defined(__aarch64__) || defined(__amd64__)
case SV_ABI_CLOUDABI:
return (SYSDECODE_ABI_CLOUDABI64);
#endif
default:
return (SYSDECODE_ABI_UNKNOWN);
}
}
static void
syscallname(u_int code, u_int sv_flags)
{
const char *name;
name = sysdecode_syscallname(syscallabi(sv_flags), code);
if (name == NULL)
printf("[%d]", code);
else {
printf("%s", name);
if (syscallno)
printf("[%d]", code);
}
}
static void
print_signal(int signo)
{
const char *signame;
signame = sysdecode_signal(signo);
if (signame != NULL)
printf("%s", signame);
else
printf("SIG %d", signo);
}
void
ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
{
int narg = ktr->ktr_narg;
register_t *ip, *first;
intmax_t arg;
int quad_align, quad_slots;
syscallname(ktr->ktr_code, sv_flags);
ip = first = &ktr->ktr_args[0];
if (narg) {
char c = '(';
if (fancy &&
(sv_flags == 0 ||
(sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
quad_align = 0;
if (sv_flags & SV_ILP32) {
#ifdef __powerpc__
quad_align = 1;
#endif
quad_slots = 2;
} else
quad_slots = 1;
switch (ktr->ktr_code) {
case SYS_bindat:
case SYS_connectat:
case SYS_faccessat:
case SYS_fchmodat:
case SYS_fchownat:
case SYS_fstatat:
case SYS_futimesat:
case SYS_linkat:
case SYS_mkdirat:
case SYS_mkfifoat:
case SYS_mknodat:
case SYS_openat:
case SYS_readlinkat:
case SYS_renameat:
case SYS_unlinkat:
case SYS_utimensat:
putchar('(');
print_integer_arg_valid(sysdecode_atfd, *ip);
c = ',';
ip++;
narg--;
break;
}
switch (ktr->ktr_code) {
case SYS_ioctl: {
print_number(ip, narg, c);
putchar(c);
ioctlname(*ip);
c = ',';
ip++;
narg--;
break;
}
case SYS_ptrace:
putchar('(');
print_integer_arg(sysdecode_ptrace_request, *ip);
c = ',';
ip++;
narg--;
break;
case SYS_access:
case SYS_eaccess:
case SYS_faccessat:
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_access_mode, *ip);
ip++;
narg--;
break;
case SYS_open:
case SYS_openat:
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_open_flags, ip[0]);
if ((ip[0] & O_CREAT) == O_CREAT) {
putchar(',');
decode_filemode(ip[1]);
}
ip += 2;
narg -= 2;
break;
case SYS_wait4:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg0(sysdecode_wait4_options, *ip);
ip++;
narg--;
break;
case SYS_wait6:
putchar('(');
print_integer_arg(sysdecode_idtype, *ip);
c = ',';
ip++;
narg--;
print_number64(first, ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_wait6_options, *ip);
ip++;
narg--;
break;
case SYS_chmod:
case SYS_fchmod:
case SYS_lchmod:
case SYS_fchmodat:
print_number(ip, narg, c);
putchar(',');
decode_filemode(*ip);
ip++;
narg--;
break;
case SYS_mknod:
case SYS_mknodat:
print_number(ip, narg, c);
putchar(',');
decode_filemode(*ip);
ip++;
narg--;
break;
case SYS_getfsstat:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_getfsstat_mode, *ip);
ip++;
narg--;
break;
case SYS_mount:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_mount_flags, *ip);
ip++;
narg--;
break;
case SYS_unmount:
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_mount_flags, *ip);
ip++;
narg--;
break;
case SYS_recvmsg:
case SYS_sendmsg:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg0(sysdecode_msg_flags, *ip);
ip++;
narg--;
break;
case SYS_recvfrom:
case SYS_sendto:
print_number(ip, narg, c);
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg0(sysdecode_msg_flags, *ip);
ip++;
narg--;
break;
case SYS_chflags:
case SYS_fchflags:
case SYS_lchflags:
print_number(ip, narg, c);
putchar(',');
decode_fileflags(*ip);
ip++;
narg--;
break;
case SYS_kill:
print_number(ip, narg, c);
putchar(',');
print_signal(*ip);
ip++;
narg--;
break;
case SYS_reboot:
putchar('(');
print_mask_arg(sysdecode_reboot_howto, *ip);
ip++;
narg--;
break;
case SYS_umask:
putchar('(');
decode_filemode(*ip);
ip++;
narg--;
break;
case SYS_msync:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_msync_flags, *ip);
ip++;
narg--;
break;
#ifdef SYS_freebsd6_mmap
case SYS_freebsd6_mmap:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_mmap_prot, *ip);
putchar(',');
ip++;
narg--;
print_mask_arg(sysdecode_mmap_flags, *ip);
ip++;
narg--;
break;
#endif
case SYS_mmap:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_mmap_prot, *ip);
putchar(',');
ip++;
narg--;
print_mask_arg(sysdecode_mmap_flags, *ip);
ip++;
narg--;
break;
case SYS_mprotect:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_mmap_prot, *ip);
ip++;
narg--;
break;
case SYS_madvise:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_madvice, *ip);
ip++;
narg--;
break;
case SYS_setpriority:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_prio_which, *ip);
ip++;
narg--;
break;
case SYS_fcntl:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
if (sysdecode_fcntl_arg_p(ip[0])) {
putchar(',');
if (ip[0] == F_SETFL)
print_mask_arg(
sysdecode_fcntl_fileflags,
ip[1]);
else
sysdecode_fcntl_arg(stdout,
ip[0], ip[1],
decimal ? 10 : 16);
}
ip += 2;
narg -= 2;
break;
case SYS_socket: {
int sockdomain;
putchar('(');
sockdomain = *ip;
print_integer_arg(sysdecode_socketdomain,
sockdomain);
ip++;
narg--;
putchar(',');
print_mask_arg(sysdecode_socket_type, *ip);
ip++;
narg--;
if (sockdomain == PF_INET ||
sockdomain == PF_INET6) {
putchar(',');
print_integer_arg(sysdecode_ipproto,
*ip);
ip++;
narg--;
}
c = ',';
break;
}
case SYS_setsockopt:
case SYS_getsockopt: {
const char *str;
print_number(ip, narg, c);
putchar(',');
print_integer_arg_valid(sysdecode_sockopt_level,
*ip);
str = sysdecode_sockopt_name(ip[0], ip[1]);
if (str != NULL) {
printf(",%s", str);
ip++;
narg--;
}
ip++;
narg--;
break;
}
#ifdef SYS_freebsd6_lseek
case SYS_freebsd6_lseek:
print_number(ip, narg, c);
/* Hidden 'pad' argument, not in lseek(2) */
print_number(ip, narg, c);
print_number64(first, ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_whence, *ip);
ip++;
narg--;
break;
#endif
case SYS_lseek:
print_number(ip, narg, c);
print_number64(first, ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_whence, *ip);
ip++;
narg--;
break;
case SYS_flock:
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_flock_operation, *ip);
ip++;
narg--;
break;
case SYS_mkfifo:
case SYS_mkfifoat:
case SYS_mkdir:
case SYS_mkdirat:
print_number(ip, narg, c);
putchar(',');
decode_filemode(*ip);
ip++;
narg--;
break;
case SYS_shutdown:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_shutdown_how, *ip);
ip++;
narg--;
break;
case SYS_socketpair:
putchar('(');
print_integer_arg(sysdecode_socketdomain, *ip);
ip++;
narg--;
putchar(',');
print_mask_arg(sysdecode_socket_type, *ip);
ip++;
narg--;
c = ',';
break;
case SYS_getrlimit:
case SYS_setrlimit:
putchar('(');
print_integer_arg(sysdecode_rlimit, *ip);
ip++;
narg--;
c = ',';
break;
case SYS_quotactl:
print_number(ip, narg, c);
putchar(',');
if (!sysdecode_quotactl_cmd(stdout, *ip)) {
if (decimal)
printf("<invalid=%d>", (int)*ip);
else
printf("<invalid=%#x>",
(int)*ip);
}
ip++;
narg--;
c = ',';
break;
case SYS_nfssvc:
putchar('(');
print_integer_arg(sysdecode_nfssvc_flags, *ip);
ip++;
narg--;
c = ',';
break;
case SYS_rtprio:
putchar('(');
print_integer_arg(sysdecode_rtprio_function,
*ip);
ip++;
narg--;
c = ',';
break;
case SYS___semctl:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_semctl_cmd, *ip);
ip++;
narg--;
break;
case SYS_semget:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_semget_flags, *ip);
ip++;
narg--;
break;
case SYS_msgctl:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_msgctl_cmd, *ip);
ip++;
narg--;
break;
case SYS_shmat:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_shmat_flags, *ip);
ip++;
narg--;
break;
case SYS_shmctl:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_shmctl_cmd, *ip);
ip++;
narg--;
break;
case SYS_shm_open:
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_open_flags, ip[0]);
putchar(',');
decode_filemode(ip[1]);
ip += 2;
narg -= 2;
break;
case SYS_minherit:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_minherit_inherit,
*ip);
ip++;
narg--;
break;
case SYS_rfork:
putchar('(');
print_mask_arg(sysdecode_rfork_flags, *ip);
ip++;
narg--;
c = ',';
break;
case SYS_lio_listio:
putchar('(');
print_integer_arg(sysdecode_lio_listio_mode,
*ip);
ip++;
narg--;
c = ',';
break;
case SYS_mlockall:
putchar('(');
print_mask_arg(sysdecode_mlockall_flags, *ip);
ip++;
narg--;
break;
case SYS_sched_setscheduler:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_scheduler_policy,
*ip);
ip++;
narg--;
break;
case SYS_sched_get_priority_max:
case SYS_sched_get_priority_min:
putchar('(');
print_integer_arg(sysdecode_scheduler_policy,
*ip);
ip++;
narg--;
break;
case SYS_sendfile:
print_number(ip, narg, c);
print_number(ip, narg, c);
print_number(ip, narg, c);
print_number(ip, narg, c);
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_sendfile_flags, *ip);
ip++;
narg--;
break;
case SYS_kldsym:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_kldsym_cmd, *ip);
ip++;
narg--;
break;
case SYS_sigprocmask:
putchar('(');
print_integer_arg(sysdecode_sigprocmask_how,
*ip);
ip++;
narg--;
c = ',';
break;
case SYS___acl_get_file:
case SYS___acl_set_file:
case SYS___acl_get_fd:
case SYS___acl_set_fd:
case SYS___acl_delete_file:
case SYS___acl_delete_fd:
case SYS___acl_aclcheck_file:
case SYS___acl_aclcheck_fd:
case SYS___acl_get_link:
case SYS___acl_set_link:
case SYS___acl_delete_link:
case SYS___acl_aclcheck_link:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_acltype, *ip);
ip++;
narg--;
break;
case SYS_sigaction:
putchar('(');
print_signal(*ip);
ip++;
narg--;
c = ',';
break;
case SYS_extattrctl:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_extattrnamespace,
*ip);
ip++;
narg--;
break;
case SYS_nmount:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_mount_flags, *ip);
ip++;
narg--;
break;
case SYS_thr_create:
print_number(ip, narg, c);
print_number(ip, narg, c);
putchar(',');
print_mask_arg(sysdecode_thr_create_flags, *ip);
ip++;
narg--;
break;
case SYS_thr_kill:
print_number(ip, narg, c);
putchar(',');
print_signal(*ip);
ip++;
narg--;
break;
case SYS_kldunloadf:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_kldunload_flags,
*ip);
ip++;
narg--;
break;
case SYS_linkat:
case SYS_renameat:
case SYS_symlinkat:
print_number(ip, narg, c);
putchar(',');
print_integer_arg_valid(sysdecode_atfd, *ip);
ip++;
narg--;
break;
case SYS_cap_fcntls_limit:
print_number(ip, narg, c);
putchar(',');
arg = *ip;
ip++;
narg--;
print_mask_arg32(sysdecode_cap_fcntlrights, arg);
break;
case SYS_posix_fadvise:
print_number(ip, narg, c);
print_number(ip, narg, c);
print_number(ip, narg, c);
(void)putchar(',');
print_integer_arg(sysdecode_fadvice, *ip);
ip++;
narg--;
break;
case SYS_procctl:
putchar('(');
print_integer_arg(sysdecode_idtype, *ip);
c = ',';
ip++;
narg--;
print_number64(first, ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_procctl_cmd, *ip);
ip++;
narg--;
break;
case SYS__umtx_op:
print_number(ip, narg, c);
putchar(',');
print_integer_arg(sysdecode_umtx_op, *ip);
switch (*ip) {
case UMTX_OP_CV_WAIT:
ip++;
narg--;
putchar(',');
print_mask_argul(
sysdecode_umtx_cvwait_flags, *ip);
break;
case UMTX_OP_RW_RDLOCK:
ip++;
narg--;
putchar(',');
print_mask_argul(
sysdecode_umtx_rwlock_flags, *ip);
break;
}
ip++;
narg--;
break;
case SYS_ftruncate:
case SYS_truncate:
print_number(ip, narg, c);
print_number64(first, ip, narg, c);
break;
}
}
while (narg > 0) {
print_number(ip, narg, c);
}
putchar(')');
}
putchar('\n');
}
void
ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
{
register_t ret = ktr->ktr_retval;
int error = ktr->ktr_error;
syscallname(ktr->ktr_code, sv_flags);
printf(" ");
if (error == 0) {
if (fancy) {
printf("%ld", (long)ret);
if (ret < 0 || ret > 9)
printf("/%#lx", (unsigned long)ret);
} else {
if (decimal)
printf("%ld", (long)ret);
else
printf("%#lx", (unsigned long)ret);
}
} else if (error == ERESTART)
printf("RESTART");
else if (error == EJUSTRETURN)
printf("JUSTRETURN");
else {
printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
syscallabi(sv_flags), error));
if (fancy)
printf(" %s", strerror(ktr->ktr_error));
}
putchar('\n');
}
void
ktrnamei(char *cp, int len)
{
printf("\"%.*s\"\n", len, cp);
}
void
hexdump(char *p, int len, int screenwidth)
{
int n, i;
int width;
width = 0;
do {
width += 2;
i = 13; /* base offset */
i += (width / 2) + 1; /* spaces every second byte */
i += (width * 2); /* width of bytes */
i += 3; /* " |" */
i += width; /* each byte */
i += 1; /* "|" */
} while (i < screenwidth);
width -= 2;
for (n = 0; n < len; n += width) {
for (i = n; i < n + width; i++) {
if ((i % width) == 0) { /* beginning of line */
printf(" 0x%04x", i);
}
if ((i % 2) == 0) {
printf(" ");
}
if (i < len)
printf("%02x", p[i] & 0xff);
else
printf(" ");
}
printf(" |");
for (i = n; i < n + width; i++) {
if (i >= len)
break;
if (p[i] >= ' ' && p[i] <= '~')
printf("%c", p[i]);
else
printf(".");
}
printf("|\n");
}
if ((i % width) != 0)
printf("\n");
}
void
visdump(char *dp, int datalen, int screenwidth)
{
int col = 0;
char *cp;
int width;
char visbuf[5];
printf(" \"");
col = 8;
for (;datalen > 0; datalen--, dp++) {
vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
cp = visbuf;
/*
* Keep track of printables and
* space chars (like fold(1)).
*/
if (col == 0) {
putchar('\t');
col = 8;
}
switch(*cp) {
case '\n':
col = 0;
putchar('\n');
continue;
case '\t':
width = 8 - (col&07);
break;
default:
width = strlen(cp);
}
if (col + width > (screenwidth-2)) {
printf("\\\n\t");
col = 8;
}
col += width;
do {
putchar(*cp++);
} while (*cp);
}
if (col == 0)
printf(" ");
printf("\"\n");
}
void
ktrgenio(struct ktr_genio *ktr, int len)
{
int datalen = len - sizeof (struct ktr_genio);
char *dp = (char *)ktr + sizeof (struct ktr_genio);
static int screenwidth = 0;
int i, binary;
printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
datalen == 1 ? "" : "s");
if (suppressdata)
return;
if (screenwidth == 0) {
struct winsize ws;
if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
ws.ws_col > 8)
screenwidth = ws.ws_col;
else
screenwidth = 80;
}
if (maxdata && datalen > maxdata)
datalen = maxdata;
for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
if (dp[i] >= 32 && dp[i] < 127)
continue;
if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
continue;
binary = 1;
}
if (binary)
hexdump(dp, datalen, screenwidth);
else
visdump(dp, datalen, screenwidth);
}
void
ktrpsig(struct ktr_psig *psig)
{
const char *str;
print_signal(psig->signo);
if (psig->action == SIG_DFL) {
printf(" SIG_DFL");
} else {
printf(" caught handler=0x%lx mask=0x%x",
(u_long)psig->action, psig->mask.__bits[0]);
}
printf(" code=");
str = sysdecode_sigcode(psig->signo, psig->code);
if (str != NULL)
printf("%s", str);
else
printf("<invalid=%#x>", psig->code);
putchar('\n');
}
void
ktrcsw_old(struct ktr_csw_old *cs)
{
printf("%s %s\n", cs->out ? "stop" : "resume",
cs->user ? "user" : "kernel");
}
void
ktrcsw(struct ktr_csw *cs)
{
printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
cs->user ? "user" : "kernel", cs->wmesg);
}
void
ktruser(int len, void *p)
{
unsigned char *cp;
if (sysdecode_utrace(stdout, p, len)) {
printf("\n");
return;
}
printf("%d ", len);
cp = p;
while (len--)
if (decimal)
printf(" %d", *cp++);
else
printf(" %02x", *cp++);
printf("\n");
}
void
ktrcaprights(cap_rights_t *rightsp)
{
printf("cap_rights_t ");
sysdecode_cap_rights(stdout, rightsp);
printf("\n");
}
static void
ktrtimeval(struct timeval *tv)
{
printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
}
void
ktritimerval(struct itimerval *it)
{
printf("itimerval { .interval = ");
ktrtimeval(&it->it_interval);
printf(", .value = ");
ktrtimeval(&it->it_value);
printf(" }\n");
}
void
ktrsockaddr(struct sockaddr *sa)
{
/*
TODO: Support additional address families
#include <netnatm/natm.h>
struct sockaddr_natm *natm;
#include <netsmb/netbios.h>
struct sockaddr_nb *nb;
*/
const char *str;
char addr[64];
/*
* note: ktrstruct() has already verified that sa points to a
* buffer at least sizeof(struct sockaddr) bytes long and exactly
* sa->sa_len bytes long.
*/
printf("struct sockaddr { ");
str = sysdecode_sockaddr_family(sa->sa_family);
if (str != NULL)
printf("%s", str);
else
printf("<invalid=%d>", sa->sa_family);
printf(", ");
#define check_sockaddr_len(n) \
if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
printf("invalid"); \
break; \
}
switch(sa->sa_family) {
case AF_INET: {
struct sockaddr_in sa_in;
memset(&sa_in, 0, sizeof(sa_in));
memcpy(&sa_in, sa, sa->sa_len);
check_sockaddr_len(in);
inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
printf("%s:%u", addr, ntohs(sa_in.sin_port));
break;
}
case AF_INET6: {
struct sockaddr_in6 sa_in6;
memset(&sa_in6, 0, sizeof(sa_in6));
memcpy(&sa_in6, sa, sa->sa_len);
check_sockaddr_len(in6);
getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
break;
}
case AF_UNIX: {
struct sockaddr_un sa_un;
memset(&sa_un, 0, sizeof(sa_un));
memcpy(&sa_un, sa, sa->sa_len);
printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
break;
}
default:
printf("unknown address family");
}
printf(" }\n");
}
void
ktrstat(struct stat *statp)
{
char mode[12], timestr[PATH_MAX + 4];
struct passwd *pwd;
struct group *grp;
struct tm *tm;
/*
* note: ktrstruct() has already verified that statp points to a
* buffer exactly sizeof(struct stat) bytes long.
*/
printf("struct stat {");
printf("dev=%ju, ino=%ju, ",
(uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
if (resolv == 0)
printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
else {
strmode(statp->st_mode, mode);
printf("mode=%s, ", mode);
}
printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
if (resolv == 0) {
pwd = NULL;
} else {
#ifdef HAVE_LIBCASPER
if (cappwd != NULL)
pwd = cap_getpwuid(cappwd, statp->st_uid);
else
#endif
pwd = getpwuid(statp->st_uid);
}
if (pwd == NULL)
printf("uid=%ju, ", (uintmax_t)statp->st_uid);
else
printf("uid=\"%s\", ", pwd->pw_name);
if (resolv == 0) {
grp = NULL;
} else {
#ifdef HAVE_LIBCASPER
if (capgrp != NULL)
grp = cap_getgrgid(capgrp, statp->st_gid);
else
#endif
grp = getgrgid(statp->st_gid);
}
if (grp == NULL)
printf("gid=%ju, ", (uintmax_t)statp->st_gid);
else
printf("gid=\"%s\", ", grp->gr_name);
printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
printf("atime=");
if (resolv == 0)
printf("%jd", (intmax_t)statp->st_atim.tv_sec);
else {
tm = localtime(&statp->st_atim.tv_sec);
strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
printf("\"%s\"", timestr);
}
if (statp->st_atim.tv_nsec != 0)
printf(".%09ld, ", statp->st_atim.tv_nsec);
else
printf(", ");
printf("mtime=");
if (resolv == 0)
printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
else {
tm = localtime(&statp->st_mtim.tv_sec);
strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
printf("\"%s\"", timestr);
}
if (statp->st_mtim.tv_nsec != 0)
printf(".%09ld, ", statp->st_mtim.tv_nsec);
else
printf(", ");
printf("ctime=");
if (resolv == 0)
printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
else {
tm = localtime(&statp->st_ctim.tv_sec);
strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
printf("\"%s\"", timestr);
}
if (statp->st_ctim.tv_nsec != 0)
printf(".%09ld, ", statp->st_ctim.tv_nsec);
else
printf(", ");
printf("birthtime=");
if (resolv == 0)
printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
else {
tm = localtime(&statp->st_birthtim.tv_sec);
strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
printf("\"%s\"", timestr);
}
if (statp->st_birthtim.tv_nsec != 0)
printf(".%09ld, ", statp->st_birthtim.tv_nsec);
else
printf(", ");
printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
(uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
(intmax_t)statp->st_blocks, statp->st_flags);
printf(" }\n");
}
void
ktrstruct(char *buf, size_t buflen)
{
char *name, *data;
size_t namelen, datalen;
int i;
cap_rights_t rights;
struct itimerval it;
struct stat sb;
struct sockaddr_storage ss;
for (name = buf, namelen = 0;
namelen < buflen && name[namelen] != '\0';
++namelen)
/* nothing */;
if (namelen == buflen)
goto invalid;
if (name[namelen] != '\0')
goto invalid;
data = buf + namelen + 1;
datalen = buflen - namelen - 1;
if (datalen == 0)
goto invalid;
/* sanity check */
for (i = 0; i < (int)namelen; ++i)
if (!isalpha(name[i]))
goto invalid;
if (strcmp(name, "caprights") == 0) {
if (datalen != sizeof(cap_rights_t))
goto invalid;
memcpy(&rights, data, datalen);
ktrcaprights(&rights);
} else if (strcmp(name, "itimerval") == 0) {
if (datalen != sizeof(struct itimerval))
goto invalid;
memcpy(&it, data, datalen);
ktritimerval(&it);
} else if (strcmp(name, "stat") == 0) {
if (datalen != sizeof(struct stat))
goto invalid;
memcpy(&sb, data, datalen);
ktrstat(&sb);
} else if (strcmp(name, "sockaddr") == 0) {
if (datalen > sizeof(ss))
goto invalid;
memcpy(&ss, data, datalen);
if (datalen != ss.ss_len)
goto invalid;
ktrsockaddr((struct sockaddr *)&ss);
} else {
printf("unknown structure\n");
}
return;
invalid:
printf("invalid record\n");
}
void
ktrcapfail(struct ktr_cap_fail *ktr)
{
switch (ktr->cap_type) {
case CAPFAIL_NOTCAPABLE:
/* operation on fd with insufficient capabilities */
printf("operation requires ");
sysdecode_cap_rights(stdout, &ktr->cap_needed);
printf(", descriptor holds ");
sysdecode_cap_rights(stdout, &ktr->cap_held);
break;
case CAPFAIL_INCREASE:
/* requested more capabilities than fd already has */
printf("attempt to increase capabilities from ");
sysdecode_cap_rights(stdout, &ktr->cap_held);
printf(" to ");
sysdecode_cap_rights(stdout, &ktr->cap_needed);
break;
case CAPFAIL_SYSCALL:
/* called restricted syscall */
printf("disallowed system call");
break;
case CAPFAIL_LOOKUP:
/* used ".." in strict-relative mode */
printf("restricted VFS lookup");
break;
default:
printf("unknown capability failure: ");
sysdecode_cap_rights(stdout, &ktr->cap_needed);
printf(" ");
sysdecode_cap_rights(stdout, &ktr->cap_held);
break;
}
printf("\n");
}
void
ktrfault(struct ktr_fault *ktr)
{
printf("0x%jx ", (uintmax_t)ktr->vaddr);
print_mask_arg(sysdecode_vmprot, ktr->type);
printf("\n");
}
void
ktrfaultend(struct ktr_faultend *ktr)
{
const char *str;
str = sysdecode_vmresult(ktr->result);
if (str != NULL)
printf("%s", str);
else
printf("<invalid=%d>", ktr->result);
printf("\n");
}
void
usage(void)
{
fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
"[-m maxdata] [-p pid] [-t trstr]\n");
exit(1);
}