1 /*

     2  *  include/linux/nfs4_acl.c

     3  *

     4  *  Common NFSv4 ACL handling definitions.

     5  *

     6  *  Copyright (c) 2002 The Regents of the University of Michigan.

     7  *  All rights reserved.

     8  *

     9  *  Marius Aamodt Eriksen <marius@umich.edu>

    10  *

    11  *  Redistribution and use in source and binary forms, with or without

    12  *  modification, are permitted provided that the following conditions

    13  *  are met:

    14  *

    15  *  1. Redistributions of source code must retain the above copyright

    16  *     notice, this list of conditions and the following disclaimer.

    17  *  2. Redistributions in binary form must reproduce the above copyright

    18  *     notice, this list of conditions and the following disclaimer in the

    19  *     documentation and/or other materials provided with the distribution.

    20  *  3. Neither the name of the University nor the names of its

    21  *     contributors may be used to endorse or promote products derived

    22  *     from this software without specific prior written permission.

    23  *

    24  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED

    25  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

    26  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    27  *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

    28  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    29  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    30  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR

    31  *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    32  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    33  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    34  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    35  */

    36 

    37 #ifndef LINUX_NFS4_ACL_H

    38 #define LINUX_NFS4_ACL_H

    39 

    40 #include <linux/posix_acl.h>

    41 

    42 /* Maximum ACL we'll accept from client; chosen (somewhat arbitrarily) to

    43  * fit in a page: */

    44 #define NFS4_ACL_MAX 170

    45 

    46 struct nfs4_acl *nfs4_acl_new(int);

    47 int nfs4_acl_get_whotype(char *, u32);

    48 int nfs4_acl_write_who(int who, char *p);

    49 int nfs4_acl_permission(struct nfs4_acl *acl, uid_t owner, gid_t group,

    50 		                        uid_t who, u32 mask);

    51 

    52 #define NFS4_ACL_TYPE_DEFAULT	0x01

    53 #define NFS4_ACL_DIR		0x02

    54 #define NFS4_ACL_OWNER		0x04

    55 

    56 struct nfs4_acl *nfs4_acl_posix_to_nfsv4(struct posix_acl *,

    57 				struct posix_acl *, unsigned int flags);

    58 int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *, struct posix_acl **,

    59 				struct posix_acl **, unsigned int flags);

    60 

    61 #endif /* LINUX_NFS4_ACL_H */