mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-14 10:09:48 +00:00
Code Issues Releases Activity
47b8bc92e8
freebsd/sys/fs/cd9660/cd9660_node.h

127 lines
5.1 KiB
C
Raw Normal View History

BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
/*-
* Copyright (c) 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley
* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
* Support code is derived from software contributed to Berkeley
* by Atsushi Murai (amurai@spec.co.jp).
*
* 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.
*
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
* @(#)cd9660_node.h 8.6 (Berkeley) 5/14/95
Divorce "dev_t" from the "major|minor" bitmap, which is now called udev_t in the kernel but still called dev_t in userland. Provide functions to manipulate both types: major() umajor() minor() uminor() makedev() umakedev() dev2udev() udev2dev() For now they're functions, they will become in-line functions after one of the next two steps in this process. Return major/minor/makedev to macro-hood for userland. Register a name in cdevsw[] for the "filedescriptor" driver. In the kernel the udev_t appears in places where we have the major/minor number combination, (ie: a potential device: we may not have the driver nor the device), like in inodes, vattr, cdevsw registration and so on, whereas the dev_t appears where we carry around a reference to a actual device. In the future the cdevsw and the aliased-from vnode will be hung directly from the dev_t, along with up to two softc pointers for the device driver and a few houskeeping bits. This will essentially replace the current "alias" check code (same buck, bigger bang). A little stunt has been provided to try to catch places where the wrong type is being used (dev_t vs udev_t), if you see something not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if it makes a difference. If it does, please try to track it down (many hands make light work) or at least try to reproduce it as simply as possible, and describe how to do that. Without DEVT_FASCIST I belive this patch is a no-op. Stylistic/posixoid comments about the userland view of the <sys/*.h> files welcome now, from userland they now contain the end result. Next planned step: make all dev_t's refer to the same devsw[] which means convert BLK's to CHR's at the perimeter of the vnodes and other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
* $Id: cd9660_node.h,v 1.17 1998/02/03 21:39:30 bde Exp $
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
*/
/*
* Theoretically, directories can be more than 2Gb in length,
* however, in practice this seems unlikely. So, we define
* the type doff_t as a long to keep down the cost of doing
* lookup on a 32-bit machine. If you are porting to a 64-bit
* architecture, you should make doff_t the same as off_t.
*/
#define doff_t long
typedef struct {
struct timespec iso_atime; /* time of last access */
struct timespec iso_mtime; /* time of last modification */
struct timespec iso_ctime; /* time file changed */
u_short iso_mode; /* files access mode and type */
uid_t iso_uid; /* owner user id */
gid_t iso_gid; /* owner group id */
short iso_links; /* links of file */
Divorce "dev_t" from the "major|minor" bitmap, which is now called udev_t in the kernel but still called dev_t in userland. Provide functions to manipulate both types: major() umajor() minor() uminor() makedev() umakedev() dev2udev() udev2dev() For now they're functions, they will become in-line functions after one of the next two steps in this process. Return major/minor/makedev to macro-hood for userland. Register a name in cdevsw[] for the "filedescriptor" driver. In the kernel the udev_t appears in places where we have the major/minor number combination, (ie: a potential device: we may not have the driver nor the device), like in inodes, vattr, cdevsw registration and so on, whereas the dev_t appears where we carry around a reference to a actual device. In the future the cdevsw and the aliased-from vnode will be hung directly from the dev_t, along with up to two softc pointers for the device driver and a few houskeeping bits. This will essentially replace the current "alias" check code (same buck, bigger bang). A little stunt has been provided to try to catch places where the wrong type is being used (dev_t vs udev_t), if you see something not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if it makes a difference. If it does, please try to track it down (many hands make light work) or at least try to reproduce it as simply as possible, and describe how to do that. Without DEVT_FASCIST I belive this patch is a no-op. Stylistic/posixoid comments about the userland view of the <sys/*.h> files welcome now, from userland they now contain the end result. Next planned step: make all dev_t's refer to the same devsw[] which means convert BLK's to CHR's at the perimeter of the vnodes and other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
udev_t iso_rdev; /* Major/Minor number for special */
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
} ISO_RRIP_INODE;
struct iso_node {
Make a set of VOP standard lock, unlock & islocked VOP operators, which depend on the lock being located at vp->v_data. Saves 3x3 identical vop procs, more as the other filesystems becomes lock aware.
1997-10-17 12:36:19 +00:00
struct lock i_lock; /* node lock > Keep this first< */
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
struct iso_node *i_next, **i_prev; /* hash chain */
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
struct vnode *i_vnode; /* vnode associated with this inode */
struct vnode *i_devvp; /* vnode for block I/O */
u_long i_flag; /* see below */
dev_t i_dev; /* device where inode resides */
ino_t i_number; /* the identity of the inode */
/* we use the actual starting block of the file */
struct iso_mnt *i_mnt; /* filesystem associated with this inode */
struct lockf *i_lockf; /* head of byte-level lock list */
doff_t i_endoff; /* end of useful stuff in directory */
doff_t i_diroff; /* offset in dir, where we found last entry */
doff_t i_offset; /* offset of free space in directory */
ino_t i_ino; /* inode number of found directory */
long iso_extent; /* extent of file */
long i_size;
long iso_start; /* actual start of data of file (may be different */
/* from iso_extent, if file has extended attributes) */
Roll in my changes to make the cd9660 code understand the older (original "High Sierra") CD format. I've already implemented this for 1.1.5.1 (and posted to -hackers), but didn't get any response to it. Perhaps i'm the only one who has such an old CD lying around... Everything is done empirically, but i had three of them around (from different vendors), so there's a high probability that i've got it right. :)
1995-01-16 17:03:29 +00:00
ISO_RRIP_INODE inode;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
};
#define i_forw i_chain[0]
#define i_back i_chain[1]
/* flags */
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
#define IN_ACCESS 0x0020 /* inode access time to be updated */
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
#define VTOI(vp) ((struct iso_node *)(vp)->v_data)
#define ITOV(ip) ((ip)->i_vnode)
Forward declare some structs so that this file is more self-sufficient. Don't declare kernel objects or functions unless KERNEL is defined.
1998-02-03 21:39:30 +00:00
#ifdef KERNEL
Last major round (Unless Bruce thinks of somthing :-) of malloc changes. Distribute all but the most fundamental malloc types. This time I also remembered the trick to making things static: Put "static" in front of them. A couple of finer points by: bde
1997-10-12 20:26:33 +00:00
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_ISOFSMNT);
MALLOC_DECLARE(M_ISOFSNODE);
#endif
Forward declare some structs so that this file is more self-sufficient. Don't declare kernel objects or functions unless KERNEL is defined.
1998-02-03 21:39:30 +00:00
struct buf;
struct vop_bmap_args;
struct vop_cachedlookup_args;
struct vop_inactive_args;
struct vop_reclaim_args;
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
/*
* Prototypes for ISOFS vnode operations
*/
Uncut&paste cache_lookup(). This unifies several times in theory indentical 50 lines of code. The filesystems have a new method: vop_cachedlookup, which is the meat of the lookup, and use vfs_cache_lookup() for their vop_lookup method. vfs_cache_lookup() will check the namecache and pass on to the vop_cachedlookup method in case of a miss. It's still the task of the individual filesystems to populate the namecache with cache_enter(). Filesystems that do not use the namecache will just provide the vop_lookup method as usual.
1997-08-26 07:32:51 +00:00
int cd9660_lookup __P((struct vop_cachedlookup_args *));
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
int cd9660_inactive __P((struct vop_inactive_args *));
int cd9660_reclaim __P((struct vop_reclaim_args *));
int cd9660_bmap __P((struct vop_bmap_args *));
VFS mega cleanup commit (x/N) 1. Add new file "sys/kern/vfs_default.c" where default actions for VOPs go. Implement proper defaults for ABORTOP, BWRITE, LEASE, POLL, REVOKE and STRATEGY. Various stuff spread over the entire tree belongs here. 2. Change VOP_BLKATOFF to a normal function in cd9660. 3. Kill VOP_BLKATOFF, VOP_TRUNCATE, VOP_VFREE, VOP_VALLOC. These are private interface functions between UFS and the underlying storage manager layer (FFS/LFS/MFS/EXT2FS). The functions now live in struct ufsmount instead. 4. Remove a kludge of VOP_ functions in all filesystems, that did nothing but obscure the simplicity and break the expandability. If a filesystem doesn't implement VOP_FOO, it shouldn't have an entry for it in its vnops table. The system will try to DTRT if it is not implemented. There are still some cruft left, but the bulk of it is done. 5. Fix another VCALL in vfs_cache.c (thanks Bruce!)
1997-10-16 10:50:27 +00:00
int cd9660_blkatoff __P((struct vnode *vp, off_t offset, char **res, struct buf **bpp));
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
void cd9660_defattr __P((struct iso_directory_record *,
Roll in my changes to make the cd9660 code understand the older (original "High Sierra") CD format. I've already implemented this for 1.1.5.1 (and posted to -hackers), but didn't get any response to it. Perhaps i'm the only one who has such an old CD lying around... Everything is done empirically, but i had three of them around (from different vendors), so there's a high probability that i've got it right. :)
1995-01-16 17:03:29 +00:00
struct iso_node *, struct buf *, enum ISO_FTYPE));
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
void cd9660_deftstamp __P((struct iso_directory_record *,
Roll in my changes to make the cd9660 code understand the older (original "High Sierra") CD format. I've already implemented this for 1.1.5.1 (and posted to -hackers), but didn't get any response to it. Perhaps i'm the only one who has such an old CD lying around... Everything is done empirically, but i had three of them around (from different vendors), so there's a high probability that i've got it right. :)
1995-01-16 17:03:29 +00:00
struct iso_node *, struct buf *, enum ISO_FTYPE));
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
struct vnode *cd9660_ihashget __P((dev_t, ino_t));
void cd9660_ihashins __P((struct iso_node *));
int cd9660_tstamp_conv7 __P((u_char *, struct timespec *, enum ISO_FTYPE));
int cd9660_tstamp_conv17 __P((u_char *, struct timespec *));
Forward declare some structs so that this file is more self-sufficient. Don't declare kernel objects or functions unless KERNEL is defined.
1998-02-03 21:39:30 +00:00
#endif /* KERNEL */
Reference in New Issue Copy Permalink