BMC/Intel-BMC/linux.git/include/linux/xattr.h, branch dev-4.7

switch ->setxattr() to passing dentry and inode separately

2016-05-28T00:09:16+00:00

smack ->d_instantiate() uses ->setxattr(), so to be able to call it before we'd hashed the new dentry and attached it to inode, we need ->setxattr() instances getting the inode as an explicit argument rather than obtaining it from dentry. Similar change for ->getxattr() had been done in commit ce23e64. Unlike ->getxattr() (which is used by both selinux and smack instances of ->d_instantiate()) ->setxattr() is used only by smack one and unfortunately it got missed back then. Reported-by: Seung-Woo Kim Tested-by: Casey Schaufler Signed-off-by: Al Viro

switch xattr_handler->set() to passing dentry and inode separately

2016-05-27T19:39:43+00:00

preparation for similar switch in ->setxattr() (see the next commit for rationale). Signed-off-by: Al Viro

->getxattr(): pass dentry and inode as separate arguments

2016-04-11T04:48:00+00:00

Signed-off-by: Al Viro

xattr_handler: pass dentry and inode as separate arguments of ->get()

2016-04-11T00:48:24+00:00

... and do not assume they are already attached to each other Signed-off-by: Al Viro

xattr handlers: Simplify list operation

2015-12-14T00:46:12+00:00

Change the list operation to only return whether or not an attribute should be listed. Copying the attribute names into the buffer is moved to the callers. Since the result only depends on the dentry and not on the attribute name, we do not pass the attribute name to list operations. Signed-off-by: Andreas Gruenbacher Signed-off-by: Al Viro

tmpfs: listxattr should include POSIX ACL xattrs

2015-12-07T02:34:15+00:00

When a file on tmpfs has an ACL or a Default ACL, listxattr should include the corresponding xattr name. Signed-off-by: Andreas Gruenbacher Reviewed-by: James Morris Cc: Hugh Dickins Cc: linux-mm@kvack.org Signed-off-by: Al Viro

tmpfs: Use xattr handler infrastructure

2015-12-07T02:34:15+00:00

Use the VFS xattr handler infrastructure and get rid of similar code in the filesystem. For implementing shmem_xattr_handler_set, we need a version of simple_xattr_set which removes the attribute when value is NULL. Use this to implement kernfs_iop_removexattr as well. Signed-off-by: Andreas Gruenbacher Reviewed-by: James Morris Cc: Hugh Dickins Cc: linux-mm@kvack.org Signed-off-by: Al Viro

vfs: Distinguish between full xattr names and proper prefixes

2015-12-07T02:33:52+00:00

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 Reviewed-by: James Morris Signed-off-by: Al Viro

vfs: Remove vfs_xattr_cmp

2015-12-07T02:25:16+00:00

This function was only briefly used in security/integrity/evm, between commits 66dbc325 and 15647eb3. Signed-off-by: Andreas Gruenbacher Reviewed-by: James Morris Signed-off-by: Al Viro

9p: xattr simplifications

2015-11-14T01:34:33+00:00

Now that the xattr handler is passed to the xattr handler operations, we can use the same get and set operations for the user, trusted, and security xattr namespaces. In those namespaces, we can access the full attribute name by "reattaching" the name prefix the vfs has skipped for us. Add a xattr_full_name helper to make this obvious in the code. For the "system.posix_acl_access" and "system.posix_acl_default" attributes, handler->prefix is the full attribute name; the suffix is the empty string. Signed-off-by: Andreas Gruenbacher Cc: Eric Van Hensbergen Cc: Ron Minnich Cc: Latchesar Ionkov Cc: v9fs-developer@lists.sourceforge.net Signed-off-by: Al Viro