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Miklos Szeredi 9c8ef5614d [PATCH] fuse: scramble lock owner ID 
VFS uses current->files pointer as lock owner ID, and it wouldn't be
prudent to expose this value to userspace.  So scramble it with XTEA using
a per connection random key, known only to the kernel.  Only one direction
needs to be implemented, since the ID is never sent in the reverse
direction.

The XTEA algorithm is implemented inline since it's simple enough to do so,
and this adds less complexity than if the crypto API were used.

Thanks to Jesper Juhl for the idea.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:20 -07:00
..
9p
[PATCH] 9pfs: missing result check in v9fs_vfs_readlink() and v9fs_vfs_link()
2006-06-25 10:01:15 -07:00
adfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
affs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
afs
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
autofs
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
autofs4
[PATCH] autofs4: need to invalidate children on tree mount expire
2006-06-25 10:01:18 -07:00
befs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
bfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
cifs
[PATCH] vfs: add lock owner argument to flush operation
2006-06-23 07:43:02 -07:00
coda
[PATCH] vfs: add lock owner argument to flush operation
2006-06-23 07:43:02 -07:00
configfs
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
cramfs
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
debugfs
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
devfs
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
devpts
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
efs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
exportfs
[PATCH] NFS server subtree_check returns dubious value
2006-05-21 12:59:16 -07:00
ext2
[PATCH] Make EXT2_DEBUG work again
2006-06-25 10:01:12 -07:00
ext3
[PATCH] ext3: cleanup dead code in ext3_add_entry()
2006-06-25 10:01:15 -07:00
fat
[PATCH] fs/fat/misc.c: unexport fat_sync_bhs
2006-06-23 07:43:03 -07:00
freevxfs
[PATCH] fs/freevxfs: cleanup of spelling errors
2006-06-25 10:01:01 -07:00
fuse
[PATCH] fuse: scramble lock owner ID
2006-06-25 10:01:20 -07:00
hfs
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
hfsplus
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
hostfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
hpfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
hppfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
hugetlbfs
[PATCH] tightening hugetlb strict accounting
2006-06-23 07:42:48 -07:00
isofs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
jbd
[PATCH] ext3: fix memory leak when the journal file is corrupted
2006-06-25 10:01:07 -07:00
jffs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
jffs2
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
jfs
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
lockd
NFS: make 2 functions static
2006-04-19 12:43:47 -04:00
minix
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
msdos
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
ncpfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
nfs
[PATCH] vfs: add lock owner argument to flush operation
2006-06-23 07:43:02 -07:00
nfs_common
[PATCH] nfsacl: Solaris VxFS compatibility fix
2005-10-11 09:46:54 -07:00
nfsd
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
nls
[PATCH] fs: Use ARRAY_SIZE macro
2006-03-24 07:33:19 -08:00
ntfs
[PATCH] Prepare for __copy_from_user_inatomic to not zero missed bytes
2006-06-25 10:01:09 -07:00
ocfs2
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
openpromfs
[PATCH] openpromfs: factorize out
2006-06-25 10:01:05 -07:00
partitions
[PATCH] make kernel warn about incorrectly sized partitions
2006-06-23 07:43:09 -07:00
proc
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
qnx4
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
ramfs
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
reiserfs
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
romfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
smbfs
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
sysfs
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
sysv
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
udf
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
ufs
[PATCH] fs/ufs/inode.c: make 2 functions static
2006-06-25 10:01:04 -07:00
vfat
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
xfs
[PATCH] for_each_possible_cpu: xfs
2006-06-23 07:42:45 -07:00
aio.c
[PATCH] list: use list_replace_init() instead of list_splice_init()
2006-06-23 07:43:07 -07:00
attr.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
bad_inode.c
[PATCH] Make most file operations structs in fs/ const
2006-03-28 09:16:06 -08:00
binfmt_aout.c
[PATCH] dump_thread() cleanup
2006-01-10 08:01:25 -08:00
binfmt_elf_fdpic.c
[PATCH] frv: binfmt_elf_fdpic __user annotations
2006-06-23 07:42:54 -07:00
binfmt_elf.c
[PATCH] binflt_elf: remove more casts
2006-06-23 07:43:05 -07:00
binfmt_em86.c
…
binfmt_flat.c
[PATCH] binfmt_flat: don't check for EMFILE
2006-05-21 12:59:17 -07:00
binfmt_misc.c
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
binfmt_script.c
…
binfmt_som.c
[PATCH] mm: mm_init set_mm_counters
2005-10-29 21:40:38 -07:00
bio.c
[PATCH] Fix missing ret assignment in __bio_map_user() error path
2006-06-17 10:52:12 -07:00
block_dev.c
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
buffer.c
[PATCH] Kill PF_SYNCWRITE flag
2006-06-23 17:10:39 +02:00
char_dev.c
[PATCH] Simplify proc/devices and fix early termination regression
2006-03-31 12:18:53 -08:00
compat_ioctl.c
[PATCH] fs: Use ARRAY_SIZE macro
2006-03-24 07:33:19 -08:00
compat.c
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
dcache.c
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
dcookies.c
[PATCH] Use __read_mostly on some hot fs variables
2006-03-26 08:56:56 -08:00
direct-io.c
[PATCH] Kill PF_SYNCWRITE flag
2006-06-23 17:10:39 +02:00
dnotify.c
[PATCH] Use __read_mostly on some hot fs variables
2006-03-26 08:56:56 -08:00
dquot.c
BUG_ON() Conversion in fs/dquot.c
2006-04-02 13:36:13 +02:00
drop_caches.c
[PATCH] drop-pagecache
2006-01-08 20:12:40 -08:00
eventpoll.c
[PATCH] epoll: use unlocked wqueue operations
2006-06-25 10:01:13 -07:00
exec.c
[PATCH] remove steal_locks()
2006-06-22 15:05:57 -07:00
fcntl.c
BUG_ON() Conversion in fs/fcntl.c
2006-04-02 13:37:19 +02:00
fifo.c
[PATCH] pipe.c/fifo.c code cleanups
2006-04-11 13:53:33 +02:00
file_table.c
[PATCH] percpu counter data type changes to suppport more than 2**31 ext3 free blocks counter
2006-06-23 07:43:06 -07:00
file.c
[PATCH] for_each_possible_cpu: fixes for generic part
2006-03-28 09:16:05 -08:00
filesystems.c
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
fs-writeback.c
[PATCH] Kill PF_SYNCWRITE flag
2006-06-23 17:10:39 +02:00
inode.c
BUG_ON() Conversion in fs/inode.c
2006-04-02 13:38:18 +02:00
inotify_user.c
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
inotify.c
[PATCH] inotify (4/5): allow watch removal from event handler
2006-06-20 05:25:19 -04:00
ioctl.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
ioprio.c
[PATCH] lsm: add task_setioprio hook
2006-06-23 07:42:53 -07:00
Kconfig
[PATCH] Make procfs obligatory except under CONFIG_EMBEDDED
2006-06-25 10:01:11 -07:00
Kconfig.binfmt
[PATCH] frv: suppress configuration of certain features for FRV
2006-01-08 20:13:36 -08:00
libfs.c
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
locks.c
[PATCH] fs/locks.c: make posix_locks_deadlock() static
2006-06-23 07:43:03 -07:00
Makefile
[PATCH] inotify (1/5): split kernel API from userspace support
2006-06-20 05:25:17 -04:00
mbcache.c
[PATCH] Typo fixes
2006-03-28 09:16:08 -08:00
mpage.c
[PATCH] writeback: fix range handling
2006-06-23 07:42:49 -07:00
namei.c
[PATCH] read_mapping_page for address space
2006-06-23 07:43:02 -07:00
namespace.c
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
nfsctl.c
[PATCH] fs: Use ARRAY_SIZE macro
2006-03-24 07:33:19 -08:00
open.c
[PATCH] ftruncate does not always update m/ctime
2006-06-25 10:01:15 -07:00
pipe.c
[PATCH] VFS: Permit filesystem to override root dentry on mount
2006-06-23 07:42:45 -07:00
pnode.c
[PATCH] s/;;/;/g
2006-03-24 07:33:24 -08:00
pnode.h
[PATCH] unbindable mounts
2005-11-07 18:18:11 -08:00
posix_acl.c
[PATCH] gfp flags annotations - part 1
2005-10-08 15:00:57 -07:00
quota_v1.c
…
quota_v2.c
[PATCH] sem2mutex: quota
2006-03-23 07:38:11 -08:00
quota.c
[PATCH] sem2mutex: quota
2006-03-23 07:38:11 -08:00
read_write.c
[PATCH] splice: unlikely() optimizations
2006-04-11 13:56:09 +02:00
readdir.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
select.c
[PATCH] Poll cleanups/microoptimizations
2006-06-23 07:43:03 -07:00
seq_file.c
[PATCH] sem2mutex: fs/seq_file.c
2006-03-23 07:38:12 -08:00
splice.c
[PATCH] splice: retrieve mapping after locking the page
2006-06-23 17:10:39 +02:00
stat.c
[PATCH] powerpc: Wire up *at syscalls
2006-04-28 21:04:59 +10:00
super.c
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
2006-06-23 07:42:45 -07:00
sync.c
[PATCH] writeback: fix range handling
2006-06-23 07:42:49 -07:00
xattr_acl.c
…
xattr.c
[PATCH] log more info for directory entry change events
2006-06-20 05:25:28 -04:00