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[src/trunk]: src/usr.sbin/makefs makefs - create a file system image from a d...
details: https://anonhg.NetBSD.org/src/rev/f4fe6aa1f1f6
branches: trunk
changeset: 516617:f4fe6aa1f1f6
user: lukem <lukem%NetBSD.org@localhost>
date: Fri Oct 26 05:11:42 2001 +0000
description:
makefs - create a file system image from a directory tree.
It doesn't need any special privileges or kernel devices.
Only ffs image creation is supported at this time, although makefs has been
designed to allow the addition of other file system formats by writing new
back-ends.
This program was designed & implemented by Luke Mewburn of Wasabi Systems.
diffstat:
usr.sbin/makefs/makefs.h | 202 +++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 202 insertions(+), 0 deletions(-)
diffs (206 lines):
diff -r 1babe676021d -r f4fe6aa1f1f6 usr.sbin/makefs/makefs.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/makefs/makefs.h Fri Oct 26 05:11:42 2001 +0000
@@ -0,0 +1,202 @@
+/* $NetBSD: makefs.h,v 1.1.1.1 2001/10/26 05:11:42 lukem Exp $ */
+
+/*
+ * Copyright 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Luke Mewburn for Wasabi Systems, Inc.
+ *
+ * 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 for the NetBSD Project by
+ * Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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.
+ */
+
+#include <sys/stat.h>
+
+
+/*
+ * fsnode - a component of the tree which contains information about the
+ * file system.
+ *
+ * A tree of these looks like this:
+ *
+ * name "." "bin" "netbsd"
+ * type S_IFDIR S_IFDIR S_IFREG
+ * next > > NULL
+ * parent NULL NULL NULL
+ * child NULL v
+ *
+ * name "." "ls"
+ * type S_IFDIR S_IFREG
+ * next > NULL
+ * parent ^ ^ (to "bin")
+ * child NULL NULL
+ *
+ * Notes:
+ * - first always points to first entry, at current level, which
+ * must be "." when the tree has been built; during build it may
+ * not be if "." hasn't yet been found by readdir(2).
+ *
+ * - if dup is not NULL, it points to an fsnode that this is a
+ * duplicate of; only relevant for non directories with > 1 link
+ */
+typedef struct _fsnode {
+ struct _fsnode *parent; /* parent (NULL if root) */
+ struct _fsnode *child; /* child (if type == S_IFDIR) */
+ struct _fsnode *next; /* next */
+ struct _fsnode *first; /* first node of current level (".") */
+ struct stat statbuf; /* stat entry */
+ char *symlink; /* symlink target */
+ char *name; /* file name */
+ struct _fsnode *dup; /* entry this is a duplicate of
+ (when statbuf.st_nlink > 1) */
+ uint32_t nlink; /* number of links to this entry */
+ uint32_t type; /* type of entry */
+ uint32_t ino; /* inode number used on target fs */
+} fsnode;
+
+
+/*
+ * fsinfo_t - contains various settings and parameters pertaining to
+ * the image, including current settings, global options, and fs
+ * specific options
+ */
+typedef struct {
+ /* current settings */
+ off_t size; /* total size */
+ off_t inodes; /* number of inodes */
+ uint32_t curinode; /* current inode */
+
+ /* image settings */
+ int fd; /* file descriptor of image */
+ void *superblock; /* superblock */
+
+
+ /* global options */
+ off_t minsize; /* minimum size image should be */
+ off_t maxsize; /* maximum size image can be */
+ off_t freefiles; /* free file entries to leave */
+ int freefilepc; /* free file % */
+ off_t freeblocks; /* free blocks to leave */
+ int freeblockpc; /* free block % */
+ int needswap; /* non-zero if byte swapping needed */
+ int sectorsize; /* sector size */
+
+ /* ffs specific options */
+ int bsize; /* block size */
+ int fsize; /* fragment size */
+ int cpg; /* cylinders per group */
+ int density; /* bytes per inode */
+ int ntracks; /* number of tracks */
+ int nsectors; /* number of sectors */
+ int rpm; /* rpm */
+ int minfree; /* free space threshold */
+ int optimization; /* optimization (space or time) */
+ int maxcontig; /* max contiguous blocks to allocate */
+ int rotdelay; /* rotational delay between blocks */
+ int maxbpg; /* maximum blocks per file in a cyl group */
+ int nrpos; /* # of distinguished rotational positions */
+ int avgfilesize; /* expected average file size */
+ int avgfpdir; /* expected # of files per directory */
+ /* XXX: support `old' file systems ? */
+} fsinfo_t;
+
+
+/*
+ * option_t - contains option name, description, pointer to location to store
+ * result, and range checks for the result. Used to simplify fs specific
+ * option setting
+ */
+typedef struct {
+ const char *name; /* option name */
+ int *value; /* where to stuff the value */
+ int minimum; /* minimum for value */
+ int maximum; /* maximum for value */
+ const char *desc; /* option description */
+} option_t;
+
+
+void apply_specfile(const char *, const char *, fsnode *);
+void dump_fsnodes(const char *, fsnode *);
+const char * inode_type(mode_t);
+int set_option(option_t *, const char *, const char *);
+fsnode * walk_dir(const char *, fsnode *);
+
+int ffs_parse_opts(const char *, fsinfo_t *);
+void ffs_makefs(const char *, const char *, fsnode *, fsinfo_t *);
+
+
+
+extern int debug;
+extern struct timespec start_time;
+
+#define DEBUG_TIME 0x00000001
+ /* debug bits 1..2 reserved at this time */
+#define DEBUG_STRSUFTOLL 0x00000008
+#define DEBUG_WALK_DIR 0x00000010
+#define DEBUG_WALK_DIR_NODE 0x00000020
+#define DEBUG_WALK_DIR_LINKCHECK 0x00000040
+#define DEBUG_DUMP_FSNODES 0x00000080
+#define DEBUG_DUMP_FSNODES_VERBOSE 0x00000100
+#define DEBUG_FS_PARSE_OPTS 0x00000200
+#define DEBUG_FS_MAKEFS 0x00000400
+#define DEBUG_FS_VALIDATE 0x00000800
+#define DEBUG_FS_CREATE_IMAGE 0x00001000
+#define DEBUG_FS_SIZE_DIR 0x00002000
+#define DEBUG_FS_SIZE_DIR_NODE 0x00004000
+#define DEBUG_FS_SIZE_DIR_ADD_DIRENT 0x00008000
+#define DEBUG_FS_POPULATE 0x00010000
+#define DEBUG_FS_POPULATE_DIRBUF 0x00020000
+#define DEBUG_FS_POPULATE_NODE 0x00040000
+#define DEBUG_FS_WRITE_FILE 0x00080000
+#define DEBUG_FS_WRITE_FILE_BLOCK 0x00100000
+#define DEBUG_FS_MAKE_DIRBUF 0x00200000
+#define DEBUG_FS_WRITE_INODE 0x00400000
+#define DEBUG_BUF_BREAD 0x00800000
+#define DEBUG_BUF_BWRITE 0x01000000
+#define DEBUG_BUF_GETBLK 0x02000000
+#define DEBUG_APPLY_SPECFILE 0x04000000
+#define DEBUG_APPLY_SPECENTRY 0x08000000
+
+
+#define TIMER_START(x) \
+ if (debug & DEBUG_TIME) \
+ gettimeofday(&(x), NULL)
+
+#define TIMER_RESULTS(x,d) \
+ if (debug & DEBUG_TIME) { \
+ struct timeval end, td; \
+ gettimeofday(&end, NULL); \
+ timersub(&end, &(x), &td); \
+ printf("%s took %ld.%06ld seconds\n", \
+ (d), td.tv_sec, td.tv_usec); \
+ }
+
+
+#ifndef DEFAULT_FSTYPE
+#define DEFAULT_FSTYPE "ffs"
+#endif
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