Add utilities for the kernel linker.

3 files changed, 185 insertions, 0 deletions

diff --git a/sbin/kldunload/Makefile b/sbin/kldunload/Makefile
new file mode 100644
index 0000000..7f7fffb
--- /dev/null
+++ b/sbin/kldunload/Makefile
@@ -0,0 +1,33 @@
+#
+# Copyright (c) 1997 Doug Rabson
+# 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.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	$Id$
+#
+
+PROG=	kldunload
+SRCS=	kldunload.c
+MAN8=	kldunload.8
+
+.include <bsd.prog.mk>
diff --git a/sbin/kldunload/kldunload.8 b/sbin/kldunload/kldunload.8
new file mode 100644
index 0000000..f9b806c
--- /dev/null
+++ b/sbin/kldunload/kldunload.8
@@ -0,0 +1,60 @@
+.\"
+.\" Copyright (c) 1997 Doug Rabson
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	$Id$
+.\"
+.Dd April 25, 1997
+.Dt KLDUNLOAD 8
+.Os
+.Sh NAME
+.Nm kldunload
+.Nd unload a file from the kernel
+.Sh SYNOPSIS
+.Nm kldunload
+.Op Fl v
+.Op Fl i Ar id
+.Op Fl n Ar filename
+.Sh DESCRIPTION
+The
+.Nm
+utility unloads a file which was previously loaded with
+.Xr kldload 8 .
+.Pp
+The options are:
+.Bl -tag -width indent
+.It Fl v
+Be more verbose.
+.It Fl i Ar id
+Unload the file with this ID.
+.It Fl n Ar name
+Unload the file with this name.
+.El
+.Sh SEE ALSO
+.Xr kldload 8 ,
+.Xr kldstat 8
+.Sh AUTHOR
+.Bl -tag
+Doug Rabson, dfr@freebsd.org
+.El.
diff --git a/sbin/kldunload/kldunload.c b/sbin/kldunload/kldunload.c
new file mode 100644
index 0000000..5f94ef9
--- /dev/null
+++ b/sbin/kldunload/kldunload.c
@@ -0,0 +1,92 @@
+/*-
+ * Copyright (c) 1997 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$Id$
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/linker.h>
+
+static char* progname;
+
+static void usage()
+{
+    fprintf(stderr, "usage: modunload [-i id] [-n filename]\n");
+    exit(1);
+}
+
+int main(int argc, char** argv)
+{
+    int c;
+    int verbose = 0;
+    int fileid = 0;
+    char* filename = 0;
+
+    progname = argv[0];
+    while ((c = getopt(argc, argv, "vi:n:")) != -1)
+	switch (c) {
+	case 'v':
+	    verbose = 1;
+	    break;
+	case 'i':
+	    fileid = atoi(optarg);
+	    break;
+	case 'n':
+	    filename = optarg;
+	    break;
+	default:
+	    usage();
+	}
+    argc -= optind;
+    argv += optind;
+
+    if (argc != 0)
+	usage();
+
+    if (fileid == 0 && filename == 0)
+	usage();
+
+    if (filename) {
+	fileid = kldfind(filename);
+	if (fileid < 0)
+	    err(1, "Can't find file %s", filename);
+    }
+
+    if (verbose) {
+	struct kld_file_stat stat;
+	stat.version = sizeof stat;
+	if (kldstat(fileid, &stat) < 0)
+	    err(1, "Can't stat file");
+	printf("Unloading %s, id=%d\n", stat.name, fileid);
+    }
+
+    if (kldunload(fileid) < 0)
+	err(1, "Can't unload file");
+
+    return 0;
+}
+