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/*****************************************************************************\
 *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
 *  Copyright (C) 2007 The Regents of the University of California.
 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
 *  UCRL-CODE-235197
 *
 *  This file is part of the SPL, Solaris Porting Layer.
 *  For details, see <http://zfsonlinux.org/>.
 *
 *  The SPL is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License as published by the
 *  Free Software Foundation; either version 2 of the License, or (at your
 *  option) any later version.
 *
 *  The SPL is distributed in the hope that it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
\*****************************************************************************/

#ifndef _SPL_ACL_H
#define _SPL_ACL_H

#include <sys/types.h>

typedef struct ace {
        uid_t a_who;
        uint32_t a_access_mask;
        uint16_t a_flags;
        uint16_t a_type;
} ace_t;

typedef struct ace_object {
        uid_t           a_who;          /* uid or gid */
        uint32_t        a_access_mask;  /* read,write,... */
        uint16_t        a_flags;        /* see below */
        uint16_t        a_type;         /* allow or deny */
        uint8_t         a_obj_type[16]; /* obj type */
        uint8_t         a_inherit_obj_type[16];  /* inherit obj */
} ace_object_t;

#define MAX_ACL_ENTRIES					1024

#define ACE_READ_DATA                                   0x00000001
#define ACE_LIST_DIRECTORY                              0x00000001
#define ACE_WRITE_DATA                                  0x00000002
#define ACE_ADD_FILE                                    0x00000002
#define ACE_APPEND_DATA                                 0x00000004
#define ACE_ADD_SUBDIRECTORY                            0x00000004
#define ACE_READ_NAMED_ATTRS                            0x00000008
#define ACE_WRITE_NAMED_ATTRS                           0x00000010
#define ACE_EXECUTE                                     0x00000020
#define ACE_DELETE_CHILD                                0x00000040
#define ACE_READ_ATTRIBUTES                             0x00000080
#define ACE_WRITE_ATTRIBUTES                            0x00000100
#define ACE_DELETE                                      0x00010000
#define ACE_READ_ACL                                    0x00020000
#define ACE_WRITE_ACL                                   0x00040000
#define ACE_WRITE_OWNER                                 0x00080000
#define ACE_SYNCHRONIZE                                 0x00100000

#define ACE_FILE_INHERIT_ACE                            0x0001
#define ACE_DIRECTORY_INHERIT_ACE                       0x0002
#define ACE_NO_PROPAGATE_INHERIT_ACE                    0x0004
#define ACE_INHERIT_ONLY_ACE                            0x0008
#define ACE_SUCCESSFUL_ACCESS_ACE_FLAG                  0x0010
#define ACE_FAILED_ACCESS_ACE_FLAG                      0x0020
#define ACE_IDENTIFIER_GROUP                            0x0040
#define ACE_INHERITED_ACE                               0x0080
#define ACE_OWNER                                       0x1000
#define ACE_GROUP                                       0x2000
#define ACE_EVERYONE                                    0x4000

#define ACE_ACCESS_ALLOWED_ACE_TYPE                     0x0000
#define ACE_ACCESS_DENIED_ACE_TYPE                      0x0001
#define ACE_SYSTEM_AUDIT_ACE_TYPE                       0x0002
#define ACE_SYSTEM_ALARM_ACE_TYPE                       0x0003

#define ACL_AUTO_INHERIT                                0x0001
#define ACL_PROTECTED                                   0x0002
#define ACL_DEFAULTED                                   0x0004
#define ACL_FLAGS_ALL (ACL_AUTO_INHERIT|ACL_PROTECTED|ACL_DEFAULTED)

#define ACE_ACCESS_ALLOWED_COMPOUND_ACE_TYPE            0x04
#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE              0x05
#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE               0x06
#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE                0x07
#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE                0x08
#define ACE_ACCESS_ALLOWED_CALLBACK_ACE_TYPE            0x09
#define ACE_ACCESS_DENIED_CALLBACK_ACE_TYPE             0x0A
#define ACE_ACCESS_ALLOWED_CALLBACK_OBJECT_ACE_TYPE     0x0B
#define ACE_ACCESS_DENIED_CALLBACK_OBJECT_ACE_TYPE      0x0C
#define ACE_SYSTEM_AUDIT_CALLBACK_ACE_TYPE              0x0D
#define ACE_SYSTEM_ALARM_CALLBACK_ACE_TYPE              0x0E
#define ACE_SYSTEM_AUDIT_CALLBACK_OBJECT_ACE_TYPE       0x0F
#define ACE_SYSTEM_ALARM_CALLBACK_OBJECT_ACE_TYPE       0x10

#define ACE_ALL_TYPES   0x001F

#define ACE_TYPE_FLAGS (ACE_OWNER|ACE_GROUP|ACE_EVERYONE|ACE_IDENTIFIER_GROUP)

#define ACE_ALL_PERMS   (ACE_READ_DATA|ACE_LIST_DIRECTORY|ACE_WRITE_DATA| \
     ACE_ADD_FILE|ACE_APPEND_DATA|ACE_ADD_SUBDIRECTORY|ACE_READ_NAMED_ATTRS| \
     ACE_WRITE_NAMED_ATTRS|ACE_EXECUTE|ACE_DELETE_CHILD|ACE_READ_ATTRIBUTES| \
     ACE_WRITE_ATTRIBUTES|ACE_DELETE|ACE_READ_ACL|ACE_WRITE_ACL| \
     ACE_WRITE_OWNER|ACE_SYNCHRONIZE)

#define VSA_ACE                                         0x0010
#define VSA_ACECNT                                      0x0020
#define VSA_ACE_ALLTYPES                                0x0040
#define VSA_ACE_ACLFLAGS                                0x0080

#endif /* _SPL_ACL_H */