-
-int ceph_acl_chmod(struct dentry *dentry, struct inode *inode)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (S_ISLNK(inode->i_mode)) {
- ret = -EOPNOTSUPP;
- goto out;
- }
-
- if (!IS_POSIXACL(inode))
- goto out;
-
- acl = ceph_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR_OR_NULL(acl)) {
- ret = PTR_ERR(acl);
- goto out;
- }
-
- ret = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
- if (ret)
- goto out;
- ret = ceph_set_acl(dentry, inode, acl, ACL_TYPE_ACCESS);
- posix_acl_release(acl);
-out:
- return ret;
-}
-
-static int ceph_xattr_acl_get(struct dentry *dentry, const char *name,
- void *value, size_t size, int type)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- acl = ceph_get_acl(dentry->d_inode, type);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl == NULL)
- return -ENODATA;
-
- ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
- posix_acl_release(acl);
-
- return ret;
-}
-
-static int ceph_xattr_acl_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int ret = 0;
- struct posix_acl *acl = NULL;
-
- if (!inode_owner_or_capable(dentry->d_inode)) {
- ret = -EPERM;
- goto out;
- }
-
- if (!IS_POSIXACL(dentry->d_inode)) {
- ret = -EOPNOTSUPP;
- goto out;
- }
-
- if (value) {
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
- if (IS_ERR(acl)) {
- ret = PTR_ERR(acl);
- goto out;
- }
-
- if (acl) {
- ret = posix_acl_valid(acl);
- if (ret)
- goto out_release;
- }
- }
-
- ret = ceph_set_acl(dentry, dentry->d_inode, acl, type);
-
-out_release:
- posix_acl_release(acl);
-out:
- return ret;
-}
-
-const struct xattr_handler ceph_xattr_acl_default_handler = {
- .prefix = POSIX_ACL_XATTR_DEFAULT,
- .flags = ACL_TYPE_DEFAULT,
- .get = ceph_xattr_acl_get,
- .set = ceph_xattr_acl_set,
-};
-
-const struct xattr_handler ceph_xattr_acl_access_handler = {
- .prefix = POSIX_ACL_XATTR_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .get = ceph_xattr_acl_get,
- .set = ceph_xattr_acl_set,
-};