Mount program for EXT2FS.

Submitted by:	Godmar Back <gback@facility.cs.utah.edu>

4 files changed, 331 insertions, 0 deletions

diff --git a/sbin/mount_ext2fs/Makefile b/sbin/mount_ext2fs/Makefile
new file mode 100644
index 0000000..cacee97
--- /dev/null
+++ b/sbin/mount_ext2fs/Makefile
@@ -0,0 +1,11 @@
+#	@(#)Makefile	8.3 (Berkeley) 3/27/94
+
+PROG=	mount_ext2fs
+SRCS=	mount_ext2fs.c getmntopts.c
+MAN8=	mount_ext2fs.8
+
+MOUNT=	${.CURDIR}/../mount
+CFLAGS+= -I${MOUNT}
+.PATH:	${MOUNT}
+
+.include <bsd.prog.mk>
diff --git a/sbin/mount_ext2fs/mntopts.h b/sbin/mount_ext2fs/mntopts.h
new file mode 100644
index 0000000..a89f63d
--- /dev/null
+++ b/sbin/mount_ext2fs/mntopts.h
@@ -0,0 +1,72 @@
+/*-
+ * Copyright (c) 1994
+ *      The Regents of the University of California.  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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)mntopts.h	8.3 (Berkeley) 3/27/94
+ */
+
+struct mntopt {
+	const char *m_option;	/* option name */
+	int m_inverse;		/* if a negative option, eg "dev" */
+	int m_flag;		/* bit to set, eg. MNT_RDONLY */
+};
+
+/* User-visible MNT_ flags. */
+#define MOPT_ASYNC		{ "async",	0, MNT_ASYNC }
+#define MOPT_NODEV		{ "dev",	1, MNT_NODEV }
+#define MOPT_NOEXEC		{ "exec",	1, MNT_NOEXEC }
+#define MOPT_NOSUID		{ "suid",	1, MNT_NOSUID }
+#define MOPT_RDONLY		{ "rdonly",	0, MNT_RDONLY }
+#define MOPT_SYNC		{ "sync",	0, MNT_SYNCHRONOUS }
+#define MOPT_UNION		{ "union",	0, MNT_UNION }
+
+/* Control flags. */
+#define MOPT_FORCE		{ "force",	1, MNT_FORCE }
+#define MOPT_UPDATE		{ "update",	0, MNT_UPDATE }
+
+/* Support for old-style "ro", "rw" flags. */
+#define MOPT_RO			{ "ro",		0, MNT_RDONLY }
+#define MOPT_RW			{ "rw",		1, MNT_RDONLY }
+
+#define MOPT_FSTAB_COMPAT						\
+	MOPT_RO,							\
+	MOPT_RW
+
+/* Standard options which all mounts can understand. */
+#define MOPT_STDOPTS							\
+	MOPT_FSTAB_COMPAT,						\
+	MOPT_NODEV,							\
+	MOPT_NOEXEC,							\
+	MOPT_NOSUID,							\
+	MOPT_RDONLY,							\
+	MOPT_UNION
+
+void getmntopts __P((const char *, const struct mntopt *, int *));
diff --git a/sbin/mount_ext2fs/mount_ext2fs.8 b/sbin/mount_ext2fs/mount_ext2fs.8
new file mode 100644
index 0000000..bd1bd8c
--- /dev/null
+++ b/sbin/mount_ext2fs/mount_ext2fs.8
@@ -0,0 +1,125 @@
+.\" Copyright (c) 1993, 1994
+.\"	The Regents of the University of California.  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 the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"	@(#)mount_lfs.8	8.5 (Berkeley) 3/30/94
+.\"
+.Dd "March 30, 1994"
+.Dt MOUNT_LFS 8
+.Os BSD 4.4
+.Sh NAME
+.Nm mount_lfs
+.Nd mount a log-structured file system
+.Sh SYNOPSIS
+.Nm mount_lfs
+.Op Fl dns
+.Op Fl o Ar options
+.Ar special
+.Ar node
+.Sh DESCRIPTION
+The
+.Nm mount_lfs
+command attaches a log-structured file system
+.Ar special
+device on to the file system tree at the point
+.Ar node .
+In addition, the
+.Xr lfs_cleanerd 8
+utility is invoked to clean the file system periodically.
+.Pp
+This command is normally executed by
+.Xr mount 8
+at boot time.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl d
+Run
+.Xr lfs_cleanerd 8
+in debug mode.
+.It Fl o
+Options are specified with a
+.Fl o
+flag followed by a comma separated string of options.
+See the
+.Xr mount 8
+man page for possible options and their meanings.
+.It Fl n
+Don't start
+.Xr lfs_cleanerd 8
+on the file system.
+.It Fl s
+Cause
+.Xr lfs_cleanerd 8
+to read data in small chunks when cleaning the file system.
+.El
+.Sh SEE ALSO
+.Xr mount 2 ,
+.Xr unmount 2 ,
+.Xr fstab 5 ,
+.Xr lfs_cleanerd 8 ,
+.Xr mount 8
+.sp
+.Rs
+.%A Ousterhout and Douglis
+.%D 1989
+.%T "Beating the I/O Bottleneck: A Case for Log-structured File Systems"
+.%J "Operating Systems Review"
+.%V Vol. 23
+.%N No. 1
+.%P pp. 11-27
+.%O "also available as Technical Report UCB/CSD 88/467"
+.Re
+.Rs
+.%A Rosenblum and Ousterhout
+.%D 1991
+.%T "The Design and Implementation of a Log-Structured File System"
+.%J "ACM SIGOPS Operating Systems Review"
+.%V Vol. 25
+.%N No. 5
+.Re
+.Rs
+.%A Seltzer
+.%D 1992
+.%T "File System Performance and Transaction Support"
+.%B "PhD Thesis, University of California, Berkeley"
+.%O "also available as Technical Report UCB/ERL M92"
+.Re
+.Rs
+.%A Seltzer, Bostic, McKusick and Staelin
+.%D 1993
+.%T "An Implementation of a Log-Structured File System for UNIX"
+.%J "Proc. of the Winter 1993 USENIX Conf."
+.%P pp. 315-331
+.Re
+.Sh HISTORY
+The
+.Nm mount_lfs
+function first appeared in 4.4BSD.
diff --git a/sbin/mount_ext2fs/mount_ext2fs.c b/sbin/mount_ext2fs/mount_ext2fs.c
new file mode 100644
index 0000000..102b515
--- /dev/null
+++ b/sbin/mount_ext2fs/mount_ext2fs.c
@@ -0,0 +1,123 @@
+/*-
+ * Copyright (c) 1993, 1994
+ *	The Regents of the University of California.  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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)mount_lfs.c	8.3 (Berkeley) 3/27/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/mount.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mntopts.h"
+
+struct mntopt mopts[] = {
+	MOPT_STDOPTS,
+	MOPT_UPDATE,
+	{ NULL }
+};
+
+void	usage __P((void));
+
+int short_rds, cleaner_debug;
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	struct ufs_args args;
+	int ch, mntflags, noclean;
+	char *fs_name, *options;
+
+	options = NULL;
+	mntflags = noclean = 0;
+	while ((ch = getopt(argc, argv, "dno:s")) != EOF)
+		switch (ch) {
+		case 'd':
+			cleaner_debug = 1;
+			break;
+		case 'n':
+			noclean = 1;
+			break;
+		case 'o':
+			getmntopts(optarg, mopts, &mntflags);
+			break;
+		case 's':
+			short_rds = 1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc != 2)
+		usage();
+
+        args.fspec = argv[0];	/* the name of the device file */
+	fs_name = argv[1];	/* the mount point */
+
+#define DEFAULT_ROOTUID	-2
+	args.export.ex_root = DEFAULT_ROOTUID;
+	if (mntflags & MNT_RDONLY)
+		args.export.ex_flags = MNT_EXRDONLY;
+	else
+		args.export.ex_flags = 0;
+	if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args))
+		err(1, NULL);
+
+		/* NOTREACHED */
+
+	exit(0);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+		"usage: mount_ext2fs [-o options] special node\n");
+	exit(1);
+}