/*
 *  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)

/* BEGIN CSTYLED */
#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)
/* END CSTYLED */

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

#endif /* _SPL_ACL_H */