include/linux/nfs4_acl.h

/*
 *  include/linux/nfs4_acl.c
 *
 *  Common NFSv4 ACL handling definitions.
 *
 *  Copyright (c) 2002 The Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  Marius Aamodt Eriksen <marius@umich.edu>
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *  3. Neither the name of the University nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef LINUX_NFS4_ACL_H
#define LINUX_NFS4_ACL_H

#include <linux/posix_acl.h>

/* Maximum ACL we'll accept from client; chosen (somewhat arbitrarily) to
 * fit in a page: */
#define NFS4_ACL_MAX 170

struct nfs4_acl *nfs4_acl_new(int);
void nfs4_acl_add_ace(struct nfs4_acl *, u32, u32, u32, int, uid_t);
int nfs4_acl_get_whotype(char *, u32);
int nfs4_acl_write_who(int who, char *p);
int nfs4_acl_permission(struct nfs4_acl *acl, uid_t owner, gid_t group,
		                        uid_t who, u32 mask);

#define NFS4_ACL_TYPE_DEFAULT	0x01
#define NFS4_ACL_DIR		0x02
#define NFS4_ACL_OWNER		0x04

struct nfs4_acl *nfs4_acl_posix_to_nfsv4(struct posix_acl *,
				struct posix_acl *, unsigned int flags);
int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *, struct posix_acl **,
				struct posix_acl **, unsigned int flags);

#endif /* LINUX_NFS4_ACL_H */