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/* $OpenBSD: modstat.c,v 1.12 1999/08/17 09:13:15 millert Exp $ */
/*
* Copyright (c) 1993 Terrence R. Lambert.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Terrence R. Lambert.
* 4. The name Terrence R. Lambert may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY TERRENCE R. LAMBERT ``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 TERRENCE R. LAMBERT 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.
*
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/lkm.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include <fcntl.h>
#include <string.h>
#include <a.out.h>
#include <errno.h>
#include "pathnames.h"
void
usage()
{
fprintf(stderr,
"usage: modstat [-i moduleid] [-n modulename]\n");
exit(1);
}
static char *type_names[] = {
"SYSCALL",
"VFS",
"DEV",
"STRMOD",
"EXEC",
"MISC"
};
int
dostat(devfd, modnum, modname)
int devfd;
int modnum;
char *modname;
{
struct lmc_stat sbuf;
char name[MAXLKMNAME] = "";
bzero(&sbuf, sizeof sbuf);
sbuf.id = modnum;
sbuf.name = name;
if (modname != NULL) {
if (strlen(modname) >= sizeof(name))
return 4;
strcpy(sbuf.name, modname);
}
if (ioctl(devfd, LMSTAT, &sbuf) == -1) {
switch (errno) {
case EINVAL: /* out of range */
return 2;
case ENOENT: /* no such entry */
return 1;
default: /* other error (EFAULT, etc) */
warn("LMSTAT");
return 4;
}
}
/*
* Decode this stat buffer...
*/
printf("%-7s %3d %3d %08x %04x %8x %3d %s\n",
type_names[sbuf.type],
sbuf.id, /* module id */
sbuf.offset, /* offset into modtype struct */
sbuf.area, /* address module loaded at */
sbuf.size, /* size in pages(K) */
sbuf.private, /* kernel address of private area */
sbuf.ver, /* Version; always 1 for now */
sbuf.name /* name from private area */
);
/*
* Done (success).
*/
return 0;
}
int devfd;
void
cleanup()
{
close(devfd);
}
int
main(argc, argv)
int argc;
char *argv[];
{
int c;
int modnum = -1;
char *modname = NULL;
while ((c = getopt(argc, argv, "i:n:")) != -1) {
switch (c) {
case 'i':
modnum = atoi(optarg);
break; /* number */
case 'n':
modname = optarg;
break; /* name */
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (argc != 0)
usage();
/*
* Open the virtual device device driver for exclusive use (needed
* to ioctl() to retrive the loaded module(s) status).
*/
if ((devfd = open(_PATH_LKM, O_RDONLY)) == -1)
err(2, _PATH_LKM);
setegid(getgid());
setgid(getgid());
atexit(cleanup);
printf("Type Id Off Loadaddr Size Info Rev Module Name\n");
/*
* Oneshot?
*/
if (modnum != -1 || modname != NULL) {
if (dostat(devfd, modnum, modname))
exit(3);
exit(0);
}
/*
* Start at 0 and work up until "EINVAL".
*/
for (modnum = 0; dostat(devfd, modnum, NULL) < 2; modnum++)
;
exit(0);
}
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