initial import of NetBSD tree

7 files changed, 504 insertions, 0 deletions

diff --git a/share/lkm/syscall/Makefile b/share/lkm/syscall/Makefile
new file mode 100644
index 00000000000..9df031463df
--- /dev/null
+++ b/share/lkm/syscall/Makefile
@@ -0,0 +1,50 @@
+#
+# 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.
+#
+#	$Id: Makefile,v 1.1 1995/10/18 08:44:21 deraadt 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.
+#
diff --git a/share/lkm/syscall/README b/share/lkm/syscall/README
new file mode 100644
index 00000000000..646fc9b21da
--- /dev/null
+++ b/share/lkm/syscall/README
@@ -0,0 +1,69 @@
+#
+# 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: README,v 1.1 1995/10/18 08:44:21 deraadt 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 preinted 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
diff --git a/share/lkm/syscall/module/Makefile b/share/lkm/syscall/module/Makefile
new file mode 100644
index 00000000000..40bcbb6ef54
--- /dev/null
+++ b/share/lkm/syscall/module/Makefile
@@ -0,0 +1,66 @@
+#
+# 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.
+#
+#	$Id: Makefile,v 1.1 1995/10/18 08:44:21 deraadt Exp $
+#
+
+SRCS=newsyscall.c
+OBJS=$(SRCS:.c=.o)
+
+KSRCS=mycall.c
+KOBJS=mycall.o
+
+MODOBJ=combined.o
+
+KMOD=newsyscall
+CFLAGS= -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
+#
diff --git a/share/lkm/syscall/module/mycall.c b/share/lkm/syscall/module/mycall.c
new file mode 100644
index 00000000000..f17c28cdf86
--- /dev/null
+++ b/share/lkm/syscall/module/mycall.c
@@ -0,0 +1,76 @@
+/*
+ * 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.
+ *
+ *	$Id: mycall.c,v 1.1 1995/10/18 08:44:21 deraadt 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.
+ */
diff --git a/share/lkm/syscall/module/newsyscall.c b/share/lkm/syscall/module/newsyscall.c
new file mode 100644
index 00000000000..a3719930e98
--- /dev/null
+++ b/share/lkm/syscall/module/newsyscall.c
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ *
+ *	$Id: newsyscall.c,v 1.1 1995/10/18 08:44:21 deraadt 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.
+ */
diff --git a/share/lkm/syscall/test/Makefile b/share/lkm/syscall/test/Makefile
new file mode 100644
index 00000000000..8fb98b22121
--- /dev/null
+++ b/share/lkm/syscall/test/Makefile
@@ -0,0 +1,67 @@
+#
+# 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.
+#
+#	$Id: Makefile,v 1.1 1995/10/18 08:44:21 deraadt Exp $
+#
+
+PROG=	testsyscall
+NOMAN=
+
+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.
+#
diff --git a/share/lkm/syscall/test/testsyscall.c b/share/lkm/syscall/test/testsyscall.c
new file mode 100644
index 00000000000..b04ea734ced
--- /dev/null
+++ b/share/lkm/syscall/test/testsyscall.c
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ *
+ *	$Id: testsyscall.c,v 1.1 1995/10/18 08:44:21 deraadt 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
+ */