text: /*
   * CDDL HEADER START
   *
   * The contents of this file are subject to the terms of the
   * Common Development and Distribution License (the "License").
   * You may not use this file except in compliance with the License.
   *
   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   * or http://www.opensolaris.org/os/licensing.
   * See the License for the specific language governing permissions
   * and limitations under the License.
   *
   * When distributing Covered Code, include this CDDL HEADER in each
   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   * If applicable, add the following below this CDDL HEADER, with the
   * fields enclosed by brackets "[]" replaced with your own identifying
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_ACL_H
  #define	_SYS_ACL_H
  
  #include <sys/types.h>
  #include <sys/acl_impl.h>
  
  #ifdef	__cplusplus
  extern "C" {
  #endif
  
  #define	MAX_ACL_ENTRIES		(1024)	/* max entries of each type */
  typedef struct acl {
  	int		a_type;		/* the type of ACL entry */
  	uid_t		a_id;		/* the entry in -uid or gid */
  	o_mode_t	a_perm;		/* the permission field */
  } aclent_t;
  
  typedef struct ace {
  	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 */
  } ace_t;
  
  typedef struct acl_info acl_t;
  
  /*
   * The following are Defined types for an aclent_t.
   */
  #define	USER_OBJ	(0x01)		/* object owner */
  #define	USER		(0x02)		/* additional users */
  #define	GROUP_OBJ	(0x04)		/* owning group of the object */
  #define	GROUP		(0x08)		/* additional groups */
  #define	CLASS_OBJ	(0x10)		/* file group class and mask entry */
  #define	OTHER_OBJ	(0x20)		/* other entry for the object */
  #define	ACL_DEFAULT	(0x1000)	/* default flag */
  /* default object owner */
  #define	DEF_USER_OBJ	(ACL_DEFAULT | USER_OBJ)
  /* default additional users */
  #define	DEF_USER	(ACL_DEFAULT | USER)
  /* default owning group */
  #define	DEF_GROUP_OBJ	(ACL_DEFAULT | GROUP_OBJ)
  /* default additional groups */
  #define	DEF_GROUP	(ACL_DEFAULT | GROUP)
  /* default mask entry */
  #define	DEF_CLASS_OBJ	(ACL_DEFAULT | CLASS_OBJ)
  /* default other entry */
  #define	DEF_OTHER_OBJ	(ACL_DEFAULT | OTHER_OBJ)
  
  /*
   * The following are defined for ace_t.
   */
  #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)
  
  #ifdef _KERNEL
  
  /*
   * These are only applicable in a CIFS context.
   */
  #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
  
  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;
  
  #endif
  
  #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	ACE_ALL_WRITE_PERMS (ACE_WRITE_DATA|ACE_APPEND_DATA| \
      ACE_WRITE_ATTRIBUTES|ACE_WRITE_NAMED_ATTRS|ACE_WRITE_ACL| \
      ACE_WRITE_OWNER|ACE_DELETE|ACE_DELETE_CHILD)
  
  #define	ACE_READ_PERMS	(ACE_READ_DATA|ACE_READ_ACL|ACE_READ_ATTRIBUTES| \
      ACE_READ_NAMED_ATTRS)
  
  #define	ACE_WRITE_PERMS	(ACE_WRITE_DATA|ACE_APPEND_DATA|ACE_WRITE_ATTRIBUTES| \
      ACE_WRITE_NAMED_ATTRS)
  
  #define	ACE_MODIFY_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_SYNCHRONIZE)
  /*
   * The following flags are supported by both NFSv4 ACLs and ace_t.
   */
  #define	ACE_NFSV4_SUP_FLAGS (ACE_FILE_INHERIT_ACE | \
      ACE_DIRECTORY_INHERIT_ACE | \
      ACE_NO_PROPAGATE_INHERIT_ACE | \
      ACE_INHERIT_ONLY_ACE | \
      ACE_IDENTIFIER_GROUP)
  
  #define	ACE_TYPE_FLAGS		(ACE_OWNER|ACE_GROUP|ACE_EVERYONE| \
      ACE_IDENTIFIER_GROUP)
  #define	ACE_INHERIT_FLAGS	(ACE_FILE_INHERIT_ACE| \
      ACE_DIRECTORY_INHERIT_ACE|ACE_NO_PROPAGATE_INHERIT_ACE|ACE_INHERIT_ONLY_ACE)
  
  /* cmd args to acl(2) for aclent_t  */
  #define	GETACL			1
  #define	SETACL			2
  #define	GETACLCNT		3
  
  /* cmd's to manipulate ace acls. */
  #define	ACE_GETACL		4
  #define	ACE_SETACL		5
  #define	ACE_GETACLCNT		6
  
  /* minimal acl entries from GETACLCNT */
  #define	MIN_ACL_ENTRIES		4
  
  #if !defined(_KERNEL)
  
  /* acl check errors */
  #define	GRP_ERROR		1
  #define	USER_ERROR		2
  #define	OTHER_ERROR		3
  #define	CLASS_ERROR		4
  #define	DUPLICATE_ERROR		5
  #define	MISS_ERROR		6
  #define	MEM_ERROR		7
  #define	ENTRY_ERROR		8
  
  
  /*
   * similar to ufs_acl.h: changed to char type for user commands (tar, cpio)
   * Attribute types
   */
  #define	UFSD_FREE	('0')	/* Free entry */
  #define	UFSD_ACL	('1')	/* Access Control Lists */
  #define	UFSD_DFACL	('2')	/* reserved for future use */
  #define	ACE_ACL		('3')	/* ace_t style acls */
  
  /*
   * flag to [f]acl_get()
   * controls whether a trivial acl should be returned.
   */
  #define	ACL_NO_TRIVIAL	0x2
  
  
  /*
   * Flags to control acl_totext()
   */
  
  #define	ACL_APPEND_ID	0x1 	/* append uid/gid to user/group entries */
  #define	ACL_COMPACT_FMT	0x2 	/* build ACL in ls -V format */
  #define	ACL_NORESOLVE	0x4	/* don't do name service lookups */
  #define	ACL_SID_FMT	0x8	/* use usersid/groupsid when appropriate */
  
  /*
   * Legacy aclcheck errors for aclent_t ACLs
   */
  #define	EACL_GRP_ERROR		GRP_ERROR
  #define	EACL_USER_ERROR		USER_ERROR
  #define	EACL_OTHER_ERROR	OTHER_ERROR
  #define	EACL_CLASS_ERROR	CLASS_ERROR
  #define	EACL_DUPLICATE_ERROR	DUPLICATE_ERROR
  #define	EACL_MISS_ERROR		MISS_ERROR
  #define	EACL_MEM_ERROR		MEM_ERROR
  #define	EACL_ENTRY_ERROR	ENTRY_ERROR
  
  #define	EACL_INHERIT_ERROR	9		/* invalid inherit flags */
  #define	EACL_FLAGS_ERROR	10		/* unknown flag value */
  #define	EACL_PERM_MASK_ERROR	11		/* unknown permission */
  #define	EACL_COUNT_ERROR	12		/* invalid acl count */
  
  #define	EACL_INVALID_SLOT	13		/* invalid acl slot */
  #define	EACL_NO_ACL_ENTRY	14		/* Entry doesn't exist */
  #define	EACL_DIFF_TYPE		15		/* acls aren't same type */
  
  #define	EACL_INVALID_USER_GROUP	16		/* need user/group name */
  #define	EACL_INVALID_STR	17		/* invalid acl string */
  #define	EACL_FIELD_NOT_BLANK	18		/* can't have blank field */
  #define	EACL_INVALID_ACCESS_TYPE 19		/* invalid access type */
  #define	EACL_UNKNOWN_DATA	20		/* Unrecognized data in ACL */
  #define	EACL_MISSING_FIELDS	21		/* missing fields in acl */
  
  #define	EACL_INHERIT_NOTDIR	22		/* Need dir for inheritance */
  
  extern int aclcheck(aclent_t *, int, int *);
  extern int acltomode(aclent_t *, int, mode_t *);
  extern int aclfrommode(aclent_t *, int, mode_t *);
  extern int aclsort(int, int, aclent_t *);
  extern char *acltotext(aclent_t *, int);
  extern aclent_t *aclfromtext(char *, int *);
  extern void acl_free(acl_t *);
  extern int acl_get(const char *, int, acl_t **);
  extern int facl_get(int, int, acl_t **);
  extern int acl_set(const char *, acl_t *acl);
  extern int facl_set(int, acl_t *acl);
  extern int acl_strip(const char *, uid_t, gid_t, mode_t);
  extern int acl_trivial(const char *);
  extern char *acl_totext(acl_t *, int);
  extern int acl_fromtext(const char *, acl_t **);
  extern int acl_check(acl_t *, int);
  
  #else	/* !defined(_KERNEL) */
  
  extern void ksort(caddr_t, int, int, int (*)(void *, void *));
  extern int cmp2acls(void *, void *);
  
  #endif	/* !defined(_KERNEL) */
  
  #if defined(__STDC__)
  extern int acl(const char *path, int cmd, int cnt, void *buf);
  extern int facl(int fd, int cmd, int cnt, void *buf);
  #else	/* !__STDC__ */
  extern int acl();
  extern int facl();
  #endif	/* defined(__STDC__) */
  
  #ifdef	__cplusplus
  }
  #endif
  
  #endif /* _SYS_ACL_H */
  