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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2015-12-02 14:44:36 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-12-06 21:33:52 -0500 |
| commit | 98e9cb5711c68223f0e4d5201b9a6add255ec550 (patch) | |
| tree | 12fee55d296fc85a6e8188368ca4944fc4d913a8 /fs/xfs | |
| parent | 97d79299223baab330b194437e676d301f12d5f6 (diff) | |
| download | linux-98e9cb5711c68223f0e4d5201b9a6add255ec550.tar.gz linux-98e9cb5711c68223f0e4d5201b9a6add255ec550.tar.bz2 linux-98e9cb5711c68223f0e4d5201b9a6add255ec550.zip | |
vfs: Distinguish between full xattr names and proper prefixes
Add an additional "name" field to struct xattr_handler. When the name
is set, the handler matches attributes with exactly that name. When the
prefix is set instead, the handler matches attributes with the given
prefix and with a non-empty suffix.
This patch should avoid bugs like the one fixed in commit c361016a in
the future.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_xattr.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index 7288795718c9..36a43851aac0 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -39,9 +39,6 @@ xfs_xattr_get(const struct xattr_handler *handler, struct dentry *dentry, struct xfs_inode *ip = XFS_I(d_inode(dentry)); int error, asize = size; - if (strcmp(name, "") == 0) - return -EINVAL; - /* Convert Linux syscall to XFS internal ATTR flags */ if (!size) { xflags |= ATTR_KERNOVAL; @@ -84,9 +81,6 @@ xfs_xattr_set(const struct xattr_handler *handler, struct dentry *dentry, struct xfs_inode *ip = XFS_I(d_inode(dentry)); int error; - if (strcmp(name, "") == 0) - return -EINVAL; - /* Convert Linux syscall to XFS internal ATTR flags */ if (flags & XATTR_CREATE) xflags |= ATTR_CREATE; |