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authorChristoph Hellwig <hch@lst.de>2006-01-09 20:52:00 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 08:01:30 -0800
commit3542c6e18f6470bad2bde1e94331e4f488a8d3f1 (patch)
tree3f6cea6d0c3554439b76c219573e7633b2ba97c3 /fs
parentb98932cb514eef404c6168c9a15cf28851498dea (diff)
downloadop-kernel-dev-3542c6e18f6470bad2bde1e94331e4f488a8d3f1.zip
op-kernel-dev-3542c6e18f6470bad2bde1e94331e4f488a8d3f1.tar.gz
[PATCH] remove xfs xattr permission checks
remove checks now in the VFS XFS has an additional xattr interface through obscure ioctl. it requires raised capabilities but we need to add some read-only/immutable checks anyway Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c5
-rw-r--r--fs/xfs/xfs_attr.c29
2 files changed, 8 insertions, 26 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index b78b5eb..f98c5be 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -530,6 +530,8 @@ xfs_attrmulti_attr_set(
char *kbuf;
int error = EFAULT;
+ if (IS_RDONLY(&vp->v_inode))
+ return -EROFS;
if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode))
return EPERM;
if (len > XATTR_SIZE_MAX)
@@ -557,6 +559,9 @@ xfs_attrmulti_attr_remove(
{
int error;
+
+ if (IS_RDONLY(&vp->v_inode))
+ return -EROFS;
if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode))
return EPERM;
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 5484eeb..1a11c2b 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -117,11 +117,6 @@ xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
ip->i_d.di_anextents == 0))
return(ENOATTR);
- if (!(flags & (ATTR_KERNACCESS|ATTR_SECURE))) {
- if ((error = xfs_iaccess(ip, S_IRUSR, cred)))
- return(XFS_ERROR(error));
- }
-
/*
* Fill in the arg structure for this request.
*/
@@ -425,7 +420,7 @@ xfs_attr_set(bhv_desc_t *bdp, const char *name, char *value, int valuelen, int f
struct cred *cred)
{
xfs_inode_t *dp;
- int namelen, error;
+ int namelen;
namelen = strlen(name);
if (namelen >= MAXNAMELEN)
@@ -437,14 +432,6 @@ xfs_attr_set(bhv_desc_t *bdp, const char *name, char *value, int valuelen, int f
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
- xfs_ilock(dp, XFS_ILOCK_SHARED);
- if (!(flags & ATTR_SECURE) &&
- (error = xfs_iaccess(dp, S_IWUSR, cred))) {
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return(XFS_ERROR(error));
- }
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
-
return xfs_attr_set_int(dp, name, namelen, value, valuelen, flags);
}
@@ -579,7 +566,7 @@ int
xfs_attr_remove(bhv_desc_t *bdp, const char *name, int flags, struct cred *cred)
{
xfs_inode_t *dp;
- int namelen, error;
+ int namelen;
namelen = strlen(name);
if (namelen >= MAXNAMELEN)
@@ -592,11 +579,7 @@ xfs_attr_remove(bhv_desc_t *bdp, const char *name, int flags, struct cred *cred)
return (EIO);
xfs_ilock(dp, XFS_ILOCK_SHARED);
- if (!(flags & ATTR_SECURE) &&
- (error = xfs_iaccess(dp, S_IWUSR, cred))) {
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return(XFS_ERROR(error));
- } else if (XFS_IFORK_Q(dp) == 0 ||
+ if (XFS_IFORK_Q(dp) == 0 ||
(dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
dp->i_d.di_anextents == 0)) {
xfs_iunlock(dp, XFS_ILOCK_SHARED);
@@ -668,12 +651,6 @@ xfs_attr_list(bhv_desc_t *bdp, char *buffer, int bufsize, int flags,
return (EIO);
xfs_ilock(dp, XFS_ILOCK_SHARED);
- if (!(flags & ATTR_SECURE) &&
- (error = xfs_iaccess(dp, S_IRUSR, cred))) {
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return(XFS_ERROR(error));
- }
-
/*
* Decide on what work routines to call based on the inode size.
*/
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