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nuke /usr/share/lkm - kernel modules are inherently depedant upon kernel,

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so the example lkms should be included in kernel sets only; furthermore,
the stuff was highly outdated
relevant items will be moved to lkm(4) and under syssrc/sys/lkm/
This commit is contained in:
jdolecek 2000-12-11 13:44:00 +00:00
parent 2940363203
commit 02ab8e1e3f
19 changed files with 18 additions and 1380 deletions
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17
distrib/sets/lists/comp/mi
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@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.280 2000/12/11 09:18:03 jdolecek Exp $
# $NetBSD: mi,v 1.281 2000/12/11 13:44:00 jdolecek Exp $
./sys comp-sysutil-root
./usr/bin/addr2line comp-miscutil-bin
./usr/bin/ar comp-util-bin
@ -1382,21 +1382,6 @@
./usr/share/ldscripts/sun4.xn comp-util-share
./usr/share/ldscripts/sun4.xr comp-util-share
./usr/share/ldscripts/sun4.xu comp-util-share
./usr/share/lkm/README comp-lkm-share
./usr/share/lkm/misc/Makefile comp-lkm-share
./usr/share/lkm/misc/README comp-lkm-share
./usr/share/lkm/misc/module/Makefile comp-lkm-share
./usr/share/lkm/misc/module/misccall.c comp-lkm-share
./usr/share/lkm/misc/module/miscmod.c comp-lkm-share
./usr/share/lkm/misc/test/Makefile comp-lkm-share
./usr/share/lkm/misc/test/testmisc.c comp-lkm-share
./usr/share/lkm/syscall/Makefile comp-lkm-share
./usr/share/lkm/syscall/README comp-lkm-share
./usr/share/lkm/syscall/module/Makefile comp-lkm-share
./usr/share/lkm/syscall/module/mycall.c comp-lkm-share
./usr/share/lkm/syscall/module/newsyscall.c comp-lkm-share
./usr/share/lkm/syscall/test/Makefile comp-lkm-share
./usr/share/lkm/syscall/test/testsyscall.c comp-lkm-share
./usr/share/locale/da/LC_MESSAGES/gettext.mo comp-miscutil-bin
./usr/share/locale/de/LC_MESSAGES/gettext.mo comp-miscutil-bin
./usr/share/locale/es/LC_MESSAGES/gettext.mo comp-miscutil-bin

17
distrib/sets/lists/comp/obsolete.mi
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@ -1,4 +1,4 @@
# $NetBSD: obsolete.mi,v 1.31 2000/12/11 09:18:04 jdolecek Exp $
# $NetBSD: obsolete.mi,v 1.32 2000/12/11 13:44:01 jdolecek Exp $
/usr/bin/genclass
/usr/bin/gettextize
/usr/include/bfd
@ -371,6 +371,21 @@
/usr/share/mk/bsd.crypto.mk
/usr/share/mk/bsd.port.mk
/usr/share/mk/bsd.port.subdir.mk
/usr/share/lkm/README
/usr/share/lkm/misc/Makefile
/usr/share/lkm/misc/README
/usr/share/lkm/misc/module/Makefile
/usr/share/lkm/misc/module/misccall.c
/usr/share/lkm/misc/module/miscmod.c
/usr/share/lkm/misc/test/Makefile
/usr/share/lkm/misc/test/testmisc.c
/usr/share/lkm/syscall/Makefile
/usr/share/lkm/syscall/README
/usr/share/lkm/syscall/module/Makefile
/usr/share/lkm/syscall/module/mycall.c
/usr/share/lkm/syscall/module/newsyscall.c
/usr/share/lkm/syscall/test/Makefile
/usr/share/lkm/syscall/test/testsyscall.c
/usr/share/lkm/vfs/Makefile
/usr/share/lkm/vfs/README
/usr/share/lkm/vfs/module/Makefile

23
etc/mtree/NetBSD.dist
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@ -1,4 +1,4 @@
# $NetBSD: NetBSD.dist,v 1.123 2000/11/18 06:05:10 wiz Exp $
# $NetBSD: NetBSD.dist,v 1.124 2000/12/11 13:44:01 jdolecek Exp $
# @(#)4.4BSD.dist 8.1 (Berkeley) 6/13/93
/set type=dir uname=root gname=wheel mode=0755
@ -1092,27 +1092,6 @@ ldscripts
# ./usr/share/ldscripts
..
# ./usr/share/lkm
lkm
# ./usr/share/lkm/misc
misc
# ./usr/share/lkm/misc
..
# ./usr/share/lkm/syscall
syscall
# ./usr/share/lkm/syscall
..
# ./usr/share/lkm/vfs
vfs
# ./usr/share/lkm/vfs
..
# ./usr/share/lkm
..
# ./usr/share/locale
locale

19
share/lkm/Makefile
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@ -1,19 +0,0 @@
#
# $NetBSD: Makefile,v 1.18 2000/12/11 09:14:28 jdolecek Exp $
#
.include <bsd.own.mk> # for UNPRIVILEGED
STUFF= README syscall misc
MKOBJ= no
install:
find ${STUFF} -follow -name CVS -prune -o -type f -print | \
cpio -pdumL ${DESTDIR}${BINDIR}/lkm
.if !defined(UNPRIVILEGED)
chown -R ${BINOWN}:${BINGRP} ${DESTDIR}${BINDIR}/lkm
.endif
find ${DESTDIR}${BINDIR}/lkm -type f | xargs chmod a=rX
find ${DESTDIR}${BINDIR}/lkm -type d | xargs chmod u=rwX,go=rX
.include <bsd.prog.mk>

220
share/lkm/README
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@ -1,220 +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.
#
# $NetBSD: README,v 1.4 1997/10/13 11:20:02 lukem Exp $
#
0.0 README
README file for the loadable kernel modules interface.
Direct questions and comments to:
Terry Lambert
terry@cs.weber.edu
Please do *not* mail me at Novell.
1.0 About this build heirarchy
This is the build heirarchy for the loadable kernel modules
(lkm) command line interface and test suite (including a
set of sample code for each possible module type).
The procedures in this file assume you have installed the
kernel portions of the lkm system and have rebooted your
machine so that they are ready for use.
If you have not done this, then there is no reason for you to
continue; please take the time to install the lkm system into
your kernel at this time.
2.0 Compiler warnings
Some compiler warnings will occur due to inclusion of kernel
and non-kernel header files in the same program that have had
the same function names ANSIfied and the prototypes for the
kernel and libc functions conflict. This needs to be resolved
by fixing the header files, which I haven't bothered to do (the
main conflict was "printf", and I made a dirty hack to get
around it until the header files have been fixed).
3.0 Usage warnings
Loading a bogus module will kill your machine, but if you are
doing developement, this will end up happening (hopefully)
less frequently than changing, recompiling, installing, and
rebooting would normally occur. This should speed developement
considerably for a lot of the in-kernel work that is currently
taking place.
4.0 Loadable module types supported
There are 6 loadable modules types supported; 5 of these are
specific module types; the sixth is to allow the user to make
their own loader as part of the module and allow them to replace
or extend apropriate tables in the kernel.
4.1 System call modules
System calls as loadable modules use one of two approaches.
If the system call slot is unspecified (-1), it will attempt
to locate (and allocate) the next free call slot that points
to the address of the "lkmnosys" function (an alias for the
"nosys" function). It replaces this with the user's call;
the user can tell which slot was allocated using the "modstat"
command (the call slot is indicated by the value of "Off").
If the system call slot is specified, it will replace that
specific call (assuming it is in range of the entries in the
sysent[] table). Care should be taken when replacing system
calls. Good candiates are calls which the user is attempting
to repair or make POSIX compliant. It is possible to replace
all calls, although care should be taken with the "ioctl()"
call, as it is the interface for the lkm loader.
When unloaded, the system call module replaces the previous
contents of the call slot it was loaded in. If this was an
allocable slot, it is now reallocable; if it was a particular
call slot, the previous function is restored.
The directory ./sample/syscall contains a sample implementation
of a loadable system call.
4.2 Virtual file system modules
A virtual file system can be loaded as a module. The example
provided is for the "kernfs" file system; this is the code in
NetBSD's /sys/kernfs combined in a single object with another
piece of code giving a module entry point for the file system;
with very little effort, any file system can be set up this way
(although I suggest you leave "ufs" statically linked, since
it is necessary for booting).
The critical section of loading a VFS is to get the entry in
the right slot and mounted.
Because of the dependency on the vfssw[] table index during
the mount, we can't simply mix and match file systems except
in their predefined locations with regard to mount. This
means that there are changes to vfssw[] and mount coming
down the road (which will end up incrementing the lkm version
and introducing an incompatability as far as file system modules
are converned).
The directory ./sample/vfs contains the sample implementation
of the loadable kernfs vfs.
4.3 Device driver modules
The major issue to deal with when creating device drivers is
insuring the creation of the device node. The current approach
to this is executing a module specific shell script upon a
successful load.
A potentially better soloution is encoding the device name in
the device switch, or, better, providing a functional interface
to the init routine, and then using a "/devices" file system
to export devices to the file system name space. Of course,
the default "/dev" directory would have to be maintained for
compatability (probably using symbolic links).
This distribution does not contain a loadable device driver
example. A potentially beneficial example could be made of
the "lpa" interruptless printer driver.
4.4 Streams modules
Streams module support has been removed from this release; when
the streams implementation is ready, it wil be restored as a
patch.
Please do not ask me for early availability on my streams
implementation; until I have some non-proprietary modules
to distribute, I'm putting work on it on the back burner
while I finish shared libraries.
4.5 Execution interpreters
Execution interpreters allow loading of programs with magic
numbers other than the default numbers supported by NetBSD.
The reasoning behind this is to effectively allow user space
developement of changes in exec format to support, among
other things, shared libraries.
Another portential use requires changing the references to
the "sysent[]" system call table from direct references to
indirect through a pointer in the proc struct. This allows
the execution interpreter to, among other things, support
(statically linked) executables from other environments,
like Xenix, SVR3, SVR4, and Linux.
There is no example of a loadable execution interpreter
provided with this distribution.
4.6 Miscellaneous modules
Miscellaneous modules are modules for which there is not a
current, well defined, or well used interface for extension.
They are provided for extension, and the user is expected to
write their own loader to handle the kernel pointer/table
manipulation to "wire in" their loaded module (and "unwire"
it on uload).
One example of a "miscellaneous module" might be a loader for
card-specific VGA drivers or alternate terminal emualtions in
an appropriately layered console driver.
The table manipulations required are specific to the console
interface, yet a loadable module may be used if code is written
to tell it how to manipulate the interfaces within the internal
console interfaces.
An example of a "miscellaneous module" is provided to show how
to write "miscellaneous modules"; it duplicates the functionality
of the "system call" module type, and is not intended to be
seriously used, as it could interfere with the "system call"
module type. The sample code is located in ./sample/misc.
5.0 END OF DOCUMENT

49
share/lkm/misc/Makefile
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@ -1,49 +0,0 @@
#
# Makefile for sample loadable system call
#
# 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.
#
# $NetBSD: Makefile,v 1.2 1997/10/13 11:20:07 lukem Exp $
#
SUBDIR= module test
load: _SUBDIRUSE
unload: _SUBDIRUSE
.include <bsd.subdir.mk>
#
# EOF -- This file has not been truncated.
#

89
share/lkm/misc/README
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@ -1,89 +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.
#
# $NetBSD: README,v 1.2 1997/10/13 11:20:10 lukem Exp $
#
1.0 Overview
This is the README file for the sample miscellaneous module
that mimics the loaded system call.
A miscellaneous module may be used to load any data or
program into the kernel that can be made available by
modifying a table, pointer, or other kernel data to inform
the kernel that the module should be used instead of the
previous code/data path.
Generally, it is assumed that a loadable module is one of
a set of similar modules (such as a file system or console
terminal emulation), and that the reference is through a
table (such as vfssw[]), and that a "special" value is
assigned to the slots which are allowed to be replaced.
This is not enforced, so you may use the "miscellaneous"
module any way you see fit.
As with the loadable system calls, it may be desirable to
allow the module loader to replace an *existing* entry to
try out changes to kernel code without rebuilding and
booting from the new kernel.
2.0 Directions
To test the module, do the following:
cd module
make load
A load message (the copyright) will be printed on the console.
cd ../test
make load
The system call prints a message on the console when called.
This message will be printed when running "make load" in
the "test" subdirectory.
3.0 Recovering resources
The miscellaneous module consumes 8 pages of memory when
loaded; it can be freed up by unloading it. To unload it,
type the following from the directory this file is in:
cd module
make unload
The miscellaneous module will be unloaded by name.
4.0 END OF DOCUMENT

66
share/lkm/misc/module/Makefile
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@ -1,66 +0,0 @@
#
# Makefile for miscmod
#
# 05 Jun 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.
#
# $NetBSD: Makefile,v 1.8 1999/11/10 00:44:22 wrstuden Exp $
#
SRCS=miscmod.c
OBJS=$(SRCS:.c=.o)
KSRCS=misccall.c
KOBJS=misccall.o
MODOBJ=combined.o
KMOD=miscmod
CFLAGS= -D_LKM -D_KERNEL -I/sys
all: $(MODOBJ)
clean:
rm -f $(OBJS) $(KOBJS) $(MODOBJ) $(KMOD)
load:
modload -o $(KMOD) -e$(KMOD) $(MODOBJ)
unload:
modunload -n $(KMOD)
$(MODOBJ): $(OBJS) $(KOBJS)
$(LD) -r -o $(MODOBJ) $(OBJS) $(KOBJS)
#
# EOF -- This file has not been truncated
#

77
share/lkm/misc/module/misccall.c
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@ -1,77 +0,0 @@
/*
* misccall.c
*
* 05 Jun 93 Terry Lambert Split out of newsyscall.c
*
* 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.
*
* $NetBSD: misccall.c,v 1.2 1997/10/13 11:20:19 lukem Exp $
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/systm.h>
/*
* This is the actual code for system call... it can be static because
* we've externed it up above... the only plae it needs to be referenced
* is the sysent we are interested in.
*
* To write your own system call using this as a template, you could strip
* out this code and use the rest as a prototype module, changing only the
* function names and the number of arguments to the call in the module
* specific "sysent".
*
* You would have to use the "-R" option of "ld" to ensure a linkable file
* if you were to do this, since you would need to combine multiple ".o"
* files into a single ".o" file for use by "modload".
*/
int
misccall( p, uap, retval)
struct proc *p;
void *uap;
int retval[];
{
/*
* Our new system call simply prints a message; it takes no
* arguments.
*/
printf( "\nI am a loaded system call using the miscellaneous\n");
printf( "module loader interface and a kernel printf!\n");
printf( "I will print this message each time I am called!\n");
return( 0); /* success (or error code from errno.h)*/
}
/*
* EOF -- This file has not been truncated.
*/

188
share/lkm/misc/module/miscmod.c
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@ -1,188 +0,0 @@
/*
* Makefile for miscmod
*
* 05 Jun 93 Terry Lambert Split mycall.c out
* 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.
*
* $NetBSD: miscmod.c,v 1.5 1997/12/01 19:08:31 mjacob Exp $
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/exec.h>
#include <sys/lkm.h>
#include <sys/file.h>
#include <sys/errno.h>
#include <sys/syscall.h>
extern int misccall();
/*
* These two entries define our system call and module information. We
* have 0 arguments to our system call.
*/
static struct sysent newent = {
0, 0, misccall /* # of args, args size, fn pointer*/
};
/*
* Miscellaneous modules must have their own save areas...
*/
static struct sysent oldent; /* save are for old callslot entry*/
MOD_MISC( "miscmod")
/*
* This function is called each time the module is loaded or unloaded.
* Since we are a miscellaneous module, we have to provide whatever
* code is necessary to patch ourselves into the area we are being
* loaded to change.
*
* For the system call table, we duplicate the code in the kern_lkm.c
* file for patching into the system call table. We can tell what
* has been allocated, etc. by virtue of the fact that we know the
* criteria used by the system call loader interface. We still
* kick out the copyright to the console here (to give an example).
*
* The stat information is basically common to all modules, so there
* is no real issue involved with stat; we will leave it lkm_nofunc(),
* since we don't have to do anything about it.
*/
static int
miscmod_handle( lkmtp, cmd)
struct lkm_table *lkmtp;
int cmd;
{
int i;
struct lkm_misc *args = lkmtp->private.lkm_misc;
int err = 0; /* default = success*/
extern int sys_lkmnosys __P((struct proc *, void *, register_t *));
switch( cmd) {
case LKM_E_LOAD:
/*
* Don't load twice! (lkmexists() is exported by kern_lkm.c)
*/
if( lkmexists( lkmtp))
return( EEXIST);
/*
* This is where we would express a slot preference if
* we had one; since we don't, we will simply duplicate
* the "auto" code and forget the other.
*/
/*
* Search the table looking for a slot...
*/
for (i = 0; i < SYS_MAXSYSCALL; i++)
if (sysent[i].sy_call == sys_lkmnosys)
break; /* found it!*/
/* out of allocable slots?*/
if (i == SYS_MAXSYSCALL) {
err = ENFILE;
break;
}
/* save old -- we must provide our own data area*/
bcopy( &sysent[ i], &oldent, sizeof( struct sysent));
/* replace with new*/
bcopy( &newent, &sysent[ i], sizeof( struct sysent));
/* done!*/
args->lkm_offset = i; /* slot in sysent[]*/
/* if we make it to here, print copyright on console*/
printf( "\nSample Loaded miscellaneous module (system call)\n");
printf( "Copyright (c) 1993\n");
printf( "Terrence R. Lambert\n");
printf( "All rights reserved\n");
break; /* Success*/
case LKM_E_UNLOAD:
/* current slot...*/
i = args->lkm_offset;
/* replace current slot contents with old contents*/
bcopy( &oldent, &sysent[ i], sizeof( struct sysent));
break; /* Success*/
default: /* we only understand load/unload*/
err = EINVAL;
break;
}
return( err);
}
/*
* External entry point; should generally match name of .o file. The
* arguments are always the same for all loaded modules. The "load",
* "unload", and "stat" functions in "DISPATCH" will be called under
* their respective circumstances. If no function is desired, lkm_nofunc()
* should be supplied. They are called with the same arguments (cmd is
* included to allow the use of a single function, ver is included for
* version matching between modules and the kernel loader for the modules).
*
* Since we expect to link in the kernel and add external symbols to
* the kernel symbol name space in a future version, generally all
* functions used in the implementation of a particular module should
* be static unless they are expected to be seen in other modules or
* to resolve unresolved symbols alread existing in the kernel (the
* second case is not likely to ever occur).
*
* The entry point should return 0 unless it is refusing load (in which
* case it should return an errno from errno.h).
*/
miscmod( lkmtp, cmd, ver)
struct lkm_table *lkmtp;
int cmd;
int ver;
{
DISPATCH(lkmtp,cmd,ver,miscmod_handle,miscmod_handle,lkm_nofunc)
}
/*
* EOF -- This file has not been truncated.
*/

67
share/lkm/misc/test/Makefile
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@ -1,67 +0,0 @@
#
# Makefile for testmisc
#
# 05 Jun 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.
#
# $NetBSD: Makefile,v 1.3 1999/02/13 02:54:35 lukem Exp $
#
PROG= testmisc
MKMAN= no
load:
@echo "This test program will call the sample system call;"
@echo "the "offset requested will be shown as 'Off' in the"
@echo "status display below. If no modules are loaded, an"
@echo "error '3' will be reported."
@echo
@echo "The sample system call will display a message on the"
@echo "system console each time it is run."
@echo
@echo
modstat -n miscmod
@echo
@./testmisc
unload:
@echo "This test program will cause an error '3' if the call"
@echo "has been successfully unloaded by building 'unload' in"
@echo "the 'module' subdirectory."
@echo
modstat -n miscmod
.include <bsd.prog.mk>
#
# EOF -- This file has not been truncated.
#

62
share/lkm/misc/test/testmisc.c
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@ -1,62 +0,0 @@
/*
* testmisc.c
*
* Test program to call the sample loaded miscellaneous system call.
*
* 05 Jun 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.
*
* $NetBSD: testmisc.c,v 1.2 1997/10/13 11:20:30 lukem Exp $
*/
#include <stdio.h>
main()
{
char buf[ 80];
int err = 0;
printf( "Table offset as reported by modstat: ");
if( gets( buf) == NULL) {
printf( "[ABORT]\n");
exit( 1);
}
if( err = syscall( atoi( buf) /* no arguments*/))
perror( "syscall");
exit( err);
}
/*
* EOF -- This file has not been truncated
*/

50
share/lkm/syscall/Makefile
View File

@ -1,50 +0,0 @@
#
# Makefile for sample loadable system call
#
# 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.
#
# $NetBSD: Makefile,v 1.2 1997/10/13 11:20:34 lukem Exp $
#
# Makefile for sample loadable system call
SUBDIR= module test
load: _SUBDIRUSE
unload: _SUBDIRUSE
.include <bsd.subdir.mk>
#
# EOF -- This file has not been truncated.
#

69
share/lkm/syscall/README
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@ -1,69 +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.
#
# $NetBSD: README,v 1.2 1997/06/19 07:21:10 mikel Exp $
#
1.0 Overview
This is the README file for the sample loaded system call.
2.0 Directions
To test the module, do the following:
cd module
make load
A load message (the copyright) will be printed on the console.
cd ../test
make load
The system call prints a message on the console when called.
This message will be printed when running "make load" in
the "test" subdirectory.
3.0 Recovering resources
The system call consumes 8 pages of memory when loaded; it
can be freed up by unloading it. To unload it, type the
following from the directory this file is in:
cd module
make unload
The system call will be unloaded by name.
4.0 END OF DOCUMENT

66
share/lkm/syscall/module/Makefile
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@ -1,66 +0,0 @@
#
# Makefile for newsyscall
#
# 05 Jun 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.
#
# $NetBSD: Makefile,v 1.8 1999/11/10 00:44:22 wrstuden Exp $
#
SRCS=newsyscall.c
OBJS=$(SRCS:.c=.o)
KSRCS=mycall.c
KOBJS=mycall.o
MODOBJ=combined.o
KMOD=newsyscall
CFLAGS= -D_LKM -D_KERNEL -I/sys
all: $(MODOBJ)
clean:
rm -f $(OBJS) $(KOBJS) $(MODOBJ) $(KMOD)
load:
modload -o $(KMOD) -e$(KMOD) $(MODOBJ)
unload:
modunload -n $(KMOD)
$(MODOBJ): $(OBJS) $(KOBJS)
$(LD) -r -o $(MODOBJ) $(OBJS) $(KOBJS)
#
# EOF -- This file has not been truncated
#

76
share/lkm/syscall/module/mycall.c
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@ -1,76 +0,0 @@
/*
* mycall.c
*
* 05 Jun 93 Terry Lambert Split out of newsyscall.c
*
* 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.
*
* $NetBSD: mycall.c,v 1.2 1997/10/13 11:20:41 lukem Exp $
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/systm.h>
/*
* This is the actual code for system call... it can be static because
* we've externed it up above... the only plae it needs to be referenced
* is the sysent we are interested in.
*
* To write your own system call using this as a template, you could strip
* out this code and use the rest as a prototype module, changing only the
* function names and the number of arguments to the call in the module
* specific "sysent".
*
* You would have to use the "-R" option of "ld" to ensure a linkable file
* if you were to do this, since you would need to combine multiple ".o"
* files into a single ".o" file for use by "modload".
*/
int
mycall( p, uap, retval)
struct proc *p;
void *uap;
int retval[];
{
/*
* Our new system call simply prints a message; it takes no
* arguments.
*/
printf( "\nI am a loaded system call using the kernel printf!\n");
printf( "I will print this message each time I am called!\n");
return( 0); /* success (or error code from errno.h)*/
}
/*
* EOF -- This file has not been truncated.
*/

114
share/lkm/syscall/module/newsyscall.c
View File

@ -1,114 +0,0 @@
/*
* Makefile for newsyscall
*
* 05 Jun 93 Terry Lambert Split mycall.c out
* 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.
*
* $NetBSD: newsyscall.c,v 1.4 1997/10/13 11:20:45 lukem Exp $
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/exec.h>
#include <sys/lkm.h>
#include <sys/file.h>
#include <sys/errno.h>
extern int mycall();
/*
* These two entries define our system call and module information. We
* have 0 arguments to our system call.
*/
static struct sysent newent = {
0, 0, mycall /* # of args, args size, fn. pointer */
};
MOD_SYSCALL( "newsyscall", -1, &newent)
/*
* This function is called each time the module is loaded. Technically,
* we could have made this "lkm_nofunc" in the "DISPATCH" in "newsyscall()",
* but it's a convenient place to kick a copyright out to the console.
*/
static int
newsyscall_load( lkmtp, cmd)
struct lkm_table *lkmtp;
int cmd;
{
if( cmd == LKM_E_LOAD) { /* print copyright on console*/
printf( "\nSample Loaded system call\n");
printf( "Copyright (c) 1993\n");
printf( "Terrence R. Lambert\n");
printf( "All rights reserved\n");
}
return( 0);
}
/*
* External entry point; should generally match name of .o file. The
* arguments are always the same for all loaded modules. The "load",
* "unload", and "stat" functions in "DISPATCH" will be called under
* their respective circumstances. If no function is desired, lkm_nofunc()
* should be supplied. They are called with the same arguments (cmd is
* included to allow the use of a single function, ver is included for
* version matching between modules and the kernel loader for the modules).
*
* Since we expect to link in the kernel and add external symbols to
* the kernel symbol name space in a future version, generally all
* functions used in the implementation of a particular module should
* be static unless they are expected to be seen in other modules or
* to resolve unresolved symbols alread existing in the kernel (the
* second case is not likely to ever occur).
*
* The entry point should return 0 unless it is refusing load (in which
* case it should return an errno from errno.h).
*/
newsyscall( lkmtp, cmd, ver)
struct lkm_table *lkmtp;
int cmd;
int ver;
{
DISPATCH(lkmtp,cmd,ver,newsyscall_load,lkm_nofunc,lkm_nofunc)
}
/*
* EOF -- This file has not been truncated.
*/

67
share/lkm/syscall/test/Makefile
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@ -1,67 +0,0 @@
#
# Makefile for testsyscall
#
# 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.
#
# $NetBSD: Makefile,v 1.3 1999/02/13 02:54:35 lukem Exp $
#
PROG= testsyscall
MKMAN= no
load:
@echo "This test program will call the sample system call;"
@echo "the "offset requested will be shown as 'Off' in the"
@echo "status display below. If no modules are loaded, an"
@echo "error '3' will be reported."
@echo
@echo "The sample system call will display a message on the"
@echo "system console each time it is run."
@echo
@echo
modstat -n newsyscall
@echo
@./testsyscall
unload:
@echo "This test program will cause an error '3' if the call"
@echo "has been successfully unloaded by building 'unload' in"
@echo "the 'module' subdirectory."
@echo
modstat -n newsyscall
.include <bsd.prog.mk>
#
# EOF -- This file has not been truncated.
#

62
share/lkm/syscall/test/testsyscall.c
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@ -1,62 +0,0 @@
/*
* testsyscall.c
*
* Test program to call the sample loaded system call.
*
* 23 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.
*
* $NetBSD: testsyscall.c,v 1.2 1997/10/13 11:20:53 lukem Exp $
*/
#include <stdio.h>
main()
{
char buf[ 80];
int err = 0;
printf( "Table offset as reported by modstat: ");
if( gets( buf) == NULL) {
printf( "[ABORT]\n");
exit( 1);
}
if( err = syscall( atoi( buf) /* no arguments*/))
perror( "syscall");
exit( err);
}
/*
* EOF -- This file has not been truncated
*/