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Peter Wemm 1999-04-24 21:04:04 +00:00
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42
sbin/modload/Makefile
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#
# Makefile for modload
#
# 25 May 93 Terry Lambert Original
#
# 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.
#
# $Id$
#
PROG= modload
MAN8= modload.8
.include <bsd.prog.mk>

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sbin/modload/modload.8
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.\" Copyright (c) 1993 Christopher G. Demetriou
.\" 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. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
.\"
.\" $Id: modload.8,v 1.10 1997/02/22 14:32:39 peter Exp $
.\"
.Dd September 22, 1994
.Dt MODLOAD 8
.Os
.Sh NAME
.Nm modload
.Nd load a kernel module
.Sh SYNOPSIS
.Nm modload
.Op Fl dquv
.Op Fl A Ar kernel
.Op Fl e Ar entry
.Op Fl p Ar postinstall
.Op Fl o Ar output_file
.Ar input_file
.Sh DESCRIPTION
The
.Nm
utility loads a loadable kernel module into a running system.
The input file is an object file (.o file).
.Pp
The options to
.Nm
are as follows:
.Bl -tag -width indent
.It Fl d
Debug. Used to debug
.Nm
itself.
.It Fl q
Be very quiet.
.It Fl u
Delete the loaded module
.Pq Ar output_file
after loading. If the output file was not specified, this option causes the
temporary file to be kept rather than deleted.
.It Fl v
Print comments about the loading process.
.It Fl A Ar kernel
Specify the file that is passed to the linker
to resolve module references to external symbols.
The symbol file must be for the currently running
kernel or the module is likely to crash the system.
.It Fl e Ar entry
Specify the module entry point.
This is passed by
.Nm
to
.Xr ld 1
when the module is linked.
The default module entry point name is the module name with `_mod' appended.
.It Fl p Ar postinstall
Specify the name of a shell script or program that will
be executed if the module is successfully loaded. It
is always passed the module id (in decimal) and module
type (in hexadecimal) as the first two arguments.
For loadable drivers, the third argument is
the block or character major device number.
For a loadable system call, the third argument is the system
call number.
.It Fl o Ar output_file
Specify the name of the output file that is produced by
the linker. If this option is not specified, a file in the /tmp directory
is used with the name generated from the module name with a `.out' extension.
.El
.Sh FILES
.Bl -tag -width /usr/include/sys/lkm.h -compact
.It Pa /kernel
default file passed to the linker to resolve external
references in the module
.It Pa /usr/include/sys/lkm.h
file containing definitions of module types
.\" .It Pa output file.
.\" default output file name
.Sh DIAGNOSTICS
The
.Nm
utility exits with a status of 0 on success
and with a nonzero status if an error occurs.
.Sh SEE ALSO
.Xr ld 1 ,
.Xr lkm 4 ,
.Xr modstat 8 ,
.Xr modunload 8
.Sh HISTORY
The
.Nm
command was designed to be similar in functionality
to the corresponding command in
.Tn "SunOS 4.1.3" .
.Sh AUTHORS
.An Terrence R. Lambert Aq terry@cs.weber.edu
.Sh BUGS
The loadable device driver framework can
only reserve either a character or block device entry, not both.

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sbin/modload/modload.c
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/*
* 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.
*/
#ifndef lint
static const char rcsid[] =
"$Id: modload.c,v 1.22 1998/07/06 07:07:41 charnier Exp $";
#endif /* not lint */
#include <a.out.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/ioccom.h>
#include <sys/lkm.h>
#include <sys/file.h>
#include <sys/wait.h>
#include "pathnames.h"
#define min(a, b) ((a) < (b) ? (a) : (b))
int debug = 0;
int verbose = 0;
int quiet = 0;
int dounlink = 0;
/*
* Expected linker options:
*
* -A executable to link against
* -e entry point
* -o output file
* -T address to link to in hex (assumes it's a page boundry)
* <target> object file
*/
void
linkcmd(kernel, entry, outfile, address, object)
char *kernel, *entry, *outfile;
u_int address; /* XXX */
char *object;
{
char addrbuf[32], entrybuf[_POSIX2_LINE_MAX];
pid_t pid;
int status;
snprintf(entrybuf, sizeof entrybuf, "_%s", entry);
snprintf(addrbuf, sizeof addrbuf, "%x", address);
if (debug)
printf("%s -A %s -e %s -o %s -T %s %s\n",
_PATH_LD, kernel, entrybuf, outfile,
addrbuf, object);
pid = fork();
if(pid < 0) {
err(18, "fork");
}
if(pid == 0) {
execl(_PATH_LD, "ld", "-aout", "-A", kernel, "-e", entrybuf,
"-o", outfile, "-T", addrbuf, object, (char *)0);
exit(128 + errno);
}
waitpid(pid, &status, 0);
if(WIFSIGNALED(status)) {
errx(1, "%s got signal: %s", _PATH_LD,
sys_siglist[WTERMSIG(status)]);
}
if(WEXITSTATUS(status) > 128) {
errno = WEXITSTATUS(status) - 128;
err(1, "exec(%s)", _PATH_LD);
}
if(WEXITSTATUS(status) != 0) {
errx(1, "%s: return code %d", _PATH_LD, WEXITSTATUS(status));
}
}
void
usage()
{
fprintf(stderr,
"usage: modload [-d] [-v] [-q] [-u] [-A <kernel>] [-e <entry]\n");
fprintf(stderr,
" [-p <postinstall>] [-o <output file>] <input file>\n");
exit(1);
}
int fileopen = 0;
#define DEV_OPEN 0x01
#define MOD_OPEN 0x02
#define PART_RESRV 0x04
int devfd, modfd;
struct lmc_resrv resrv;
void
cleanup()
{
if (fileopen & PART_RESRV) {
/*
* Free up kernel memory
*/
if (ioctl(devfd, LMUNRESRV, 0) == -1)
warn("can't release slot 0x%08x memory", resrv.slot);
}
if (fileopen & DEV_OPEN)
close(devfd);
if (fileopen & MOD_OPEN)
close(modfd);
fileopen = 0;
}
int
main(argc, argv)
int argc;
char *argv[];
{
int c;
char *kname = (char *)getbootfile();
char *entry = NULL;
char *post = NULL;
char *out = NULL;
char *modobj;
char modout[80], *p;
struct exec info_buf;
u_int modsize; /* XXX */
u_int modentry; /* XXX */
struct lmc_loadbuf ldbuf;
int sz, bytesleft;
char buf[MODIOBUF];
while ((c = getopt(argc, argv, "dvquA:e:p:o:")) != -1) {
switch (c) {
case 'd':
debug = 1;
break; /* debug */
case 'v':
verbose = 1;
break; /* verbose */
case 'u':
dounlink = 1;
break;
case 'q':
quiet = 1;
break;
case 'A':
kname = optarg;
break; /* kernel */
case 'e':
entry = optarg;
break; /* entry point */
case 'p':
post = optarg;
break; /* postinstall */
case 'o':
out = optarg;
break; /* output file */
case '?':
usage();
default:
printf("default!\n");
break;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
modobj = argv[0];
atexit(cleanup);
/*
* Open the virtual device device driver for exclusive use (needed
* to write the new module to it as our means of getting it in the
* kernel).
*/
if ((devfd = open(_PATH_LKM, O_RDWR, 0)) == -1)
err(3, _PATH_LKM);
fileopen |= DEV_OPEN;
p = strrchr(modobj, '.');
if (!p || strcmp(p, ".o"))
errx(2, "module object must end in .o");
if (!out) {
p = strrchr(modobj, '/');
if (p)
p++; /* skip over '/' */
else
p = modobj;
snprintf(modout, sizeof modout, "%s%sut", _PATH_TMP, p);
out = modout;
/*
* reverse meaning of -u - if we've generated a /tmp
* file, remove it automatically...
*/
dounlink = !dounlink;
}
if (!entry) { /* calculate default entry point */
entry = strrchr(modobj, '/');
if (entry)
entry++; /* skip over '/' */
else
entry = modobj;
entry = strdup(entry); /* so we can modify it */
if (!entry)
errx(1, "Could not allocate memory");
entry[strlen(entry) - 2] = '\0'; /* chop off .o */
}
(void) unlink(out);
modfd = open(out, O_RDWR | O_CREAT | O_EXCL, 0600);
if(modfd < 0) {
err(1, "creating %s", out);
}
close(modfd);
/*
* Prelink to get file size
*/
linkcmd(kname, entry, out, 0, modobj);
/*
* Pre-open the 0-linked module to get the size information
*/
if ((modfd = open(out, O_RDONLY, 0)) == -1)
err(4, out);
fileopen |= MOD_OPEN;
/*
* Get the load module post load size... do this by reading the
* header and doing page counts.
*/
if (read(modfd, &info_buf, sizeof(struct exec)) == -1)
err(3, "read `%s'", out);
/*
* Close the dummy module -- we have our sizing information.
*/
close(modfd);
fileopen &= ~MOD_OPEN;
/*
* Magic number...
*/
if (N_BADMAG(info_buf))
errx(4, "not an a.out format file");
/*
* Calculate the size of the module
*/
modsize = info_buf.a_text + info_buf.a_data + info_buf.a_bss;
/*
* Reserve the required amount of kernel memory -- this may fail
* to be successful.
*/
resrv.size = modsize; /* size in bytes */
resrv.name = modout; /* objname w/o ".o" */
resrv.slot = -1; /* returned */
resrv.addr = 0; /* returned */
if (ioctl(devfd, LMRESERV, &resrv) == -1)
err(9, "can't reserve memory");
fileopen |= PART_RESRV;
/*
* Relink at kernel load address
*/
linkcmd(kname, entry, out, resrv.addr, modobj);
/*
* Open the relinked module to load it...
*/
if ((modfd = open(out, O_RDONLY, 0)) == -1)
err(4, out);
fileopen |= MOD_OPEN;
/*
* Reread the header to get the actual entry point *after* the
* relink.
*/
if (read(modfd, &info_buf, sizeof(struct exec)) == -1)
err(3, "read `%s'", out);
/*
* Get the entry point (for initialization)
*/
modentry = info_buf.a_entry; /* place to call */
/*
* Seek to the text offset to start loading...
*/
if (lseek(modfd, N_TXTOFF(info_buf), 0) == -1)
err(12, "lseek");
/*
* Transfer the relinked module to kernel memory in chunks of
* MODIOBUF size at a time.
*/
for (bytesleft = info_buf.a_text + info_buf.a_data;
bytesleft > 0;
bytesleft -= sz) {
sz = min(bytesleft, MODIOBUF);
read(modfd, buf, sz);
ldbuf.cnt = sz;
ldbuf.data = buf;
if (ioctl(devfd, LMLOADBUF, &ldbuf) == -1)
err(11, "error transferring buffer");
}
/*
* Save ourselves before disaster (potentially) strikes...
*/
sync();
/*
* Trigger the module as loaded by calling the entry procedure;
* this will do all necessary table fixup to ensure that state
* is maintained on success, or blow everything back to ground
* zero on failure.
*/
if (ioctl(devfd, LMREADY, &modentry) == -1)
err(14, "error initializing module");
/*
* Success!
*/
fileopen &= ~PART_RESRV; /* loaded */
if(!quiet) printf("Module loaded as ID %d\n", resrv.slot);
if (dounlink && unlink(out))
err(17, "unlink(%s)", out);
if (post) {
struct lmc_stat sbuf;
char id[16], type[16], offset[16];
sbuf.id = resrv.slot;
if (ioctl(devfd, LMSTAT, &sbuf) == -1)
err(15, "error fetching module stats for post-install");
sprintf(id, "%d", sbuf.id);
sprintf(type, "0x%x", sbuf.type);
sprintf(offset, "%lu", sbuf.offset);
/* XXX the modload docs say that drivers can install bdevsw &
cdevsw, but the interface only supports one at a time. sigh. */
/* Free resources before calling post-install program */
cleanup();
execl(post, post, id, type, offset, 0);
err(16, "can't exec '%s'", post);
}
return 0;
}

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sbin/modload/pathnames.h
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/* $Id$ */
#include <paths.h>
#define _PATH_LKM "/dev/lkm"
#define _PATH_LD "/usr/bin/ld"

42
sbin/modunload/Makefile
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#
# Makefile for modunload
#
# 25 May 93 Terry Lambert Original
#
# 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.
#
# $Id$
#
PROG= modunload
MAN8= modunload.8
.include <bsd.prog.mk>

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sbin/modunload/modunload.8
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.\" Copyright (c) 1993 Christopher G. Demetriou
.\" 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. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
.\"
.\" $Id: modunload.8,v 1.7 1997/02/22 14:32:42 peter Exp $
.\"
.Dd June 7, 1993
.Dt MODUNLOAD 8
.Os
.Sh NAME
.Nm modunload
.Nd unload a kernel module
.Sh SYNOPSIS
.Nm modunload
.Op Fl i Ar module_id
.Op Fl n Ar module_name
.Sh DESCRIPTION
The
.Nm
utility unloads a loadable kernel module from a running system.
The
.Ar module_id
or
.Ar module_name
is the ID or name of the module as shown by
.Xr modstat 8 .
.Pp
One of the following options must be specified:
.Bl -tag -width indent
.It Fl i Ar module_id
Unload the module with the ID
.Ar module_id .
.It Fl n Ar module_name
Unload the module with the name
.Ar module_name .
.El
.Sh DIAGNOSTICS
The
.Nm
utility exits with a status of 0 on success
and with a nonzero status if an error occurs.
.Sh SEE ALSO
.Xr lkm 4 ,
.Xr modload 8 ,
.Xr modstat 8
.Sh HISTORY
The
.Nm
command was designed to be similar in functionality
to the corresponding command in
.Tn "SunOS 4.1.3" .
.Sh AUTHORS
.An Terrence R. Lambert Aq terry@cs.weber.edu

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sbin/modunload/modunload.c
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/*
* 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.
*/
#ifndef lint
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/lkm.h>
#include <sys/file.h>
#include <sys/errno.h>
#include "pathnames.h"
void
usage()
{
fprintf(stderr, "usage: modunload [-i <module id>] [-n <module name>]\n");
exit(1);
}
int devfd;
void
cleanup()
{
close(devfd);
}
int
main(argc, argv)
int argc;
char *argv[];
{
int c;
int modnum = -1;
char *modname = NULL;
struct lmc_unload ulbuf;
while ((c = getopt(argc, argv, "i:n:")) != -1) {
switch (c) {
case 'i':
modnum = atoi(optarg);
break; /* number */
case 'n':
modname = optarg;
break; /* name */
case '?':
usage();
default:
printf("default!\n");
break;
}
}
argc -= optind;
argv += optind;
if (argc != 0 || (modnum == -1 && modname == NULL))
usage();
/*
* Open the virtual device device driver for exclusive use (needed
* to ioctl() to retrieve the loaded module(s) status).
*/
if ((devfd = open(_PATH_LKM, O_RDWR, 0)) == -1)
err(2, _PATH_LKM);
atexit(cleanup);
/*
* Unload the requested module.
*/
ulbuf.name = modname;
ulbuf.id = modnum;
if (ioctl(devfd, LMUNLOAD, &ulbuf) == -1) {
switch (errno) {
case EINVAL: /* out of range */
errx(3, "id out of range");
case ENOENT: /* no such entry */
errx(3, "no such module");
default: /* other error (EFAULT, etc) */
err(5, "LMUNLOAD");
}
}
return 0;
}

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sbin/modunload/pathnames.h
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#include <paths.h>
#define _PATH_LKM "/dev/lkm"

42
usr.bin/modstat/Makefile
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#
# Makefile for modstat
#
# 25 May 93 Terry Lambert Original
#
# 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.
#
# $Id$
#
PROG= modstat
MAN8= modstat.8
.include <bsd.prog.mk>

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usr.bin/modstat/modstat.8
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@ -1,67 +0,0 @@
.\" Copyright (c) 1993 Christopher G. Demetriou
.\" 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. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
.\"
.\" $Id: modstat.8,v 1.6 1997/07/28 07:01:00 charnier Exp $
.\"
.Dd June 7, 1993
.Dt MODSTAT 8
.Os
.Sh NAME
.Nm modstat
.Nd display status of loaded kernel modules
.Sh SYNOPSIS
.Nm
.Op Fl i Ar id
.Op Fl n Ar name
.Sh DESCRIPTION
The
.Nm
utility displays the status of any loadable kernel modules
present in the kernel.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl i Ar id
Display the status of only the module with this ID.
.It Fl n Ar name
Display the status of only the module with this name.
.El
.Sh DIAGNOSTICS
The
.Nm
utility exits with a status of 0 on success
and with a nonzero status if an error occurs.
.Sh SEE ALSO
.Xr lkm 4 ,
.Xr modload 8 ,
.Xr modunload 8
.Sh HISTORY
The
.Nm
command was designed to be similar in functionality
to the corresponding command in
.Tn "SunOS 4.1.3" .
.Sh AUTHORS
.An Terrence R. Lambert Aq terry@cs.weber.edu

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usr.bin/modstat/modstat.c
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@ -1,180 +0,0 @@
/*
* 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.
*/
#ifndef lint
static const char rcsid[] =
"$Id: modstat.c,v 1.9 1997/07/28 07:01:02 charnier Exp $";
#endif /* not lint */
#include <a.out.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/lkm.h>
#include <sys/file.h>
#include "pathnames.h"
static void
usage()
{
fprintf(stderr, "usage: modstat [-i <module id>] [-n <module name>]\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;
sbuf.name[MAXLKMNAME - 1] = '\0'; /* In case strncpy limits the string. */
if (modname != NULL)
strncpy(sbuf.name, modname, MAXLKMNAME - 1);
sbuf.id = modnum;
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 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 */
case '?':
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, 0)) == -1)
err(2, _PATH_LKM);
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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usr.bin/modstat/pathnames.h
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#include <paths.h>
#define _PATH_LKM "/dev/lkm"