/*
* Copyright (c) 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.
*/
/*
* fsnode -
* a component of the tree; contains a filename, a pointer to
* fsinode, optional symlink name, and tree pointers
*
* fsinode -
* equivalent to an inode, containing target file system inode number,
* refcount (nlink), and stat buffer
*
* A tree of fsnodes 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).
*/
typedef struct {
uint64_t ino; /* inode number used on target fs */
uint32_t nlink; /* number of links to this entry */
enum fi_flags flags; /* flags used by fs specific code */
struct stat st; /* stat entry */
void *fsuse; /* for storing FS dependent info */
#if !HAVE_STRUCT_STAT_ST_FLAGS
uint32_t st_flags; /* stand-in for st.st_flags */
#endif
} fsinode;
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 (".") */
uint32_t type; /* type of entry */
fsinode *inode; /* actual inode data */
char *symlink; /* symlink target */
const char *root; /* root path */
char *path; /* directory name */
char *name; /* file name */
int flags; /* misc flags */
} fsnode;
#define FSNODE_F_HASSPEC 0x01 /* fsnode has a spec entry */
/*
* 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 enum {
OPT_STRARRAY,
OPT_STRPTR,
OPT_STRBUF,
OPT_BOOL,
OPT_INT8,
OPT_INT16,
OPT_INT32,
OPT_INT64
} opttype_t;
typedef struct {
char letter; /* option letter NUL for none */
const char *name; /* option name */
void *value; /* where to stuff the value */
opttype_t type; /* type of entry */
long long minimum; /* minimum for value */
long long maximum; /* maximum for value */
const char *desc; /* option description */
} option_t;
/*
* fsinfo_t - contains various settings and parameters pertaining to
* the image, including current settings, global options, and fs
* specific options
*/
typedef struct makefs_fsinfo {
/* 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 */
int onlyspec; /* only add entries in specfile */
/* 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 */
off_t freeblocks; /* free blocks to leave */
off_t offset; /* offset from start of file */
int freefilepc; /* free file % */
int freeblockpc; /* free block % */
int needswap; /* non-zero if byte swapping needed */
int sectorsize; /* sector size */
int sparse; /* sparse image, don't fill it with zeros */
int replace; /* replace files when merging */
int follow; /* follow symlinks */
void *fs_specific; /* File system specific additions. */
option_t *fs_options; /* File system specific options */
} fsinfo_t;
/*
* If -x is specified, we want to exclude nodes which do not appear
* in the spec file.
*/
#define FSNODE_EXCLUDE_P(opts, fsnode) \
((opts)->onlyspec != 0 && ((fsnode)->flags & FSNODE_F_HASSPEC) == 0)
