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authorAndreas Gruenbacher <agruenba@redhat.com>2015-12-02 16:44:36 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2015-12-07 05:33:52 +0300
commit98e9cb5711c68223f0e4d5201b9a6add255ec550 (patch)
tree12fee55d296fc85a6e8188368ca4944fc4d913a8 /fs/squashfs
parent97d79299223baab330b194437e676d301f12d5f6 (diff)
downloadlinux-98e9cb5711c68223f0e4d5201b9a6add255ec550.tar.xz
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/squashfs')
-rw-r--r--fs/squashfs/xattr.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c
index 6a4cc344085c..2f0ccbaa2d92 100644
--- a/fs/squashfs/xattr.c
+++ b/fs/squashfs/xattr.c
@@ -228,9 +228,6 @@ static int squashfs_xattr_handler_get(const struct xattr_handler *handler,
struct dentry *d, const char *name,
void *buffer, size_t size)
{
- if (name[0] == '\0')
- return -EINVAL;
-
return squashfs_xattr_get(d_inode(d), handler->flags, name,
buffer, size);
}