common/nfs/nfs4_kprot.h

/*
 * 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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _NFS4_KPROT_H
#define	_NFS4_KPROT_H

/*
 * Kernel specific version.
 * NFS Version 4 protocol definitions.  From nfs4_prot.x rev 1.119.
 */

#ifdef __cplusplus
extern "C" {
#endif

#include <rpc/rpc.h>
#ifdef _KERNEL
#include <rpc/rpc_rdma.h>
#endif
#include <sys/stream.h>

#define	NFS4_FHSIZE 128
#define	NFS4_VERIFIER_SIZE 8

/*
 * Reasonable upper bounds to catch badly behaving partners
 */
#define	NFS4_OPAQUE_LIMIT	1024
#define	NFS4_COMPOUND_LIMIT	2048
#define	NFS4_FS_LOCATIONS_LIMIT	65536
#define	NFS4_ACL_LIMIT		65536
#define	NFS4_SECINFO_LIMIT	65536
#define	NFS4_FATTR4_LIMIT	1048576
#define	NFS4_DATA_LIMIT		134217728

enum nfs_ftype4 {
	NF4REG = 1,
	NF4DIR = 2,
	NF4BLK = 3,
	NF4CHR = 4,
	NF4LNK = 5,
	NF4SOCK = 6,
	NF4FIFO = 7,
	NF4ATTRDIR = 8,
	NF4NAMEDATTR = 9
};
typedef enum nfs_ftype4 nfs_ftype4;

enum nfsstat4 {
	NFS4_OK = 0,
	NFS4ERR_PERM = 1,
	NFS4ERR_NOENT = 2,
	NFS4ERR_IO = 5,
	NFS4ERR_NXIO = 6,
	NFS4ERR_ACCESS = 13,
	NFS4ERR_EXIST = 17,
	NFS4ERR_XDEV = 18,
	NFS4ERR_NOTDIR = 20,
	NFS4ERR_ISDIR = 21,
	NFS4ERR_INVAL = 22,
	NFS4ERR_FBIG = 27,
	NFS4ERR_NOSPC = 28,
	NFS4ERR_ROFS = 30,
	NFS4ERR_MLINK = 31,
	NFS4ERR_NAMETOOLONG = 63,
	NFS4ERR_NOTEMPTY = 66,
	NFS4ERR_DQUOT = 69,
	NFS4ERR_STALE = 70,
	NFS4ERR_BADHANDLE = 10001,
	NFS4ERR_BAD_COOKIE = 10003,
	NFS4ERR_NOTSUPP = 10004,
	NFS4ERR_TOOSMALL = 10005,
	NFS4ERR_SERVERFAULT = 10006,
	NFS4ERR_BADTYPE = 10007,
	NFS4ERR_DELAY = 10008,
	NFS4ERR_SAME = 10009,
	NFS4ERR_DENIED = 10010,
	NFS4ERR_EXPIRED = 10011,
	NFS4ERR_LOCKED = 10012,
	NFS4ERR_GRACE = 10013,
	NFS4ERR_FHEXPIRED = 10014,
	NFS4ERR_SHARE_DENIED = 10015,
	NFS4ERR_WRONGSEC = 10016,
	NFS4ERR_CLID_INUSE = 10017,
	NFS4ERR_RESOURCE = 10018,
	NFS4ERR_MOVED = 10019,
	NFS4ERR_NOFILEHANDLE = 10020,
	NFS4ERR_MINOR_VERS_MISMATCH = 10021,
	NFS4ERR_STALE_CLIENTID = 10022,
	NFS4ERR_STALE_STATEID = 10023,
	NFS4ERR_OLD_STATEID = 10024,
	NFS4ERR_BAD_STATEID = 10025,
	NFS4ERR_BAD_SEQID = 10026,
	NFS4ERR_NOT_SAME = 10027,
	NFS4ERR_LOCK_RANGE = 10028,
	NFS4ERR_SYMLINK = 10029,
	NFS4ERR_RESTOREFH = 10030,
	NFS4ERR_LEASE_MOVED = 10031,
	NFS4ERR_ATTRNOTSUPP = 10032,
	NFS4ERR_NO_GRACE = 10033,
	NFS4ERR_RECLAIM_BAD = 10034,
	NFS4ERR_RECLAIM_CONFLICT = 10035,
	NFS4ERR_BADXDR = 10036,
	NFS4ERR_LOCKS_HELD = 10037,
	NFS4ERR_OPENMODE = 10038,
	NFS4ERR_BADOWNER = 10039,
	NFS4ERR_BADCHAR = 10040,
	NFS4ERR_BADNAME = 10041,
	NFS4ERR_BAD_RANGE = 10042,
	NFS4ERR_LOCK_NOTSUPP = 10043,
	NFS4ERR_OP_ILLEGAL = 10044,
	NFS4ERR_DEADLOCK = 10045,
	NFS4ERR_FILE_OPEN = 10046,
	NFS4ERR_ADMIN_REVOKED = 10047,
	NFS4ERR_CB_PATH_DOWN = 10048
};
typedef enum nfsstat4 nfsstat4;

/*
 * A bitmap can only be 56 bits, treat it as a uint64_t for now
 */
typedef uint64_t bitmap4;

typedef uint64_t offset4;

typedef uint32_t count4;

typedef uint64_t length4;

typedef uint64_t clientid4;

typedef uint32_t seqid4;

typedef struct {
	uint_t utf8string_len;
	char *utf8string_val;
} utf8string;

typedef utf8string component4;

typedef struct {
	uint_t pathname4_len;
	component4 *pathname4_val;
} pathname4;

typedef uint64_t nfs_lockid4;

typedef uint64_t nfs_cookie4;

typedef utf8string linktext4;

typedef struct {
	uint_t sec_oid4_len;
	char *sec_oid4_val;
} sec_oid4;

typedef uint32_t qop4;

typedef uint32_t mode4;

typedef uint64_t changeid4;

typedef uint64_t verifier4;

struct nfstime4 {
	int64_t seconds;
	uint32_t nseconds;
};
typedef struct nfstime4 nfstime4;

enum time_how4 {
	SET_TO_SERVER_TIME4 = 0,
	SET_TO_CLIENT_TIME4 = 1
};
typedef enum time_how4 time_how4;

struct settime4 {
	time_how4 set_it;
	nfstime4 time;
};
typedef struct settime4 settime4;

typedef struct {
	uint_t nfs_fh4_len;
	char *nfs_fh4_val;
} nfs_fh4;

struct fsid4 {
	uint64_t major;
	uint64_t minor;
};
typedef struct fsid4 fsid4;

struct fs_location4 {
	uint_t server_len;
	utf8string *server_val;
	pathname4 rootpath;
};
typedef struct fs_location4 fs_location4;

struct fs_locations4 {
	pathname4 fs_root;
	uint_t locations_len;
	fs_location4 *locations_val;
};
typedef struct fs_locations4 fs_locations4;

/*
 * ACL support
 */

#define	ACL4_SUPPORT_ALLOW_ACL 0x00000001
#define	ACL4_SUPPORT_DENY_ACL 0x00000002
#define	ACL4_SUPPORT_AUDIT_ACL 0x00000004
#define	ACL4_SUPPORT_ALARM_ACL 0x00000008

typedef uint32_t acetype4;
#define	ACE4_ACCESS_ALLOWED_ACE_TYPE 0x00000000
#define	ACE4_ACCESS_DENIED_ACE_TYPE 0x00000001
#define	ACE4_SYSTEM_AUDIT_ACE_TYPE 0x00000002
#define	ACE4_SYSTEM_ALARM_ACE_TYPE 0x00000003

typedef uint32_t aceflag4;
#define	ACE4_FILE_INHERIT_ACE 0x00000001
#define	ACE4_DIRECTORY_INHERIT_ACE 0x00000002
#define	ACE4_NO_PROPAGATE_INHERIT_ACE 0x00000004
#define	ACE4_INHERIT_ONLY_ACE 0x00000008
#define	ACE4_SUCCESSFUL_ACCESS_ACE_FLAG 0x00000010
#define	ACE4_FAILED_ACCESS_ACE_FLAG 0x00000020
#define	ACE4_IDENTIFIER_GROUP 0x00000040
/*
 * This defines all valid flag bits, as defined by RFC 3530.  If
 * any additional flag bits are deemed part of the NFSv4 spec,
 * you must also add them to the definition below.
 */
#define	ACE4_VALID_FLAG_BITS (\
    ACE4_FILE_INHERIT_ACE | \
    ACE4_DIRECTORY_INHERIT_ACE | \
    ACE4_NO_PROPAGATE_INHERIT_ACE | \
    ACE4_INHERIT_ONLY_ACE | \
    ACE4_SUCCESSFUL_ACCESS_ACE_FLAG | \
    ACE4_FAILED_ACCESS_ACE_FLAG | \
    ACE4_IDENTIFIER_GROUP)

typedef uint32_t acemask4;
#define	ACE4_READ_DATA 0x00000001
#define	ACE4_LIST_DIRECTORY 0x00000001
#define	ACE4_WRITE_DATA 0x00000002
#define	ACE4_ADD_FILE 0x00000002
#define	ACE4_APPEND_DATA 0x00000004
#define	ACE4_ADD_SUBDIRECTORY 0x00000004
#define	ACE4_READ_NAMED_ATTRS 0x00000008
#define	ACE4_WRITE_NAMED_ATTRS 0x00000010
#define	ACE4_EXECUTE 0x00000020
#define	ACE4_DELETE_CHILD 0x00000040
#define	ACE4_READ_ATTRIBUTES 0x00000080
#define	ACE4_WRITE_ATTRIBUTES 0x00000100
#define	ACE4_DELETE 0x00010000
#define	ACE4_READ_ACL 0x00020000
#define	ACE4_WRITE_ACL 0x00040000
#define	ACE4_WRITE_OWNER 0x00080000
#define	ACE4_SYNCHRONIZE 0x00100000
#define	ACE4_GENERIC_READ 0x00120081
#define	ACE4_GENERIC_WRITE 0x00160106
#define	ACE4_GENERIC_EXECUTE 0x001200A0
/*
 * This defines all valid access mask bits, as defined by RFC 3530.  If
 * any additional access mask bits are deemed part of the NFSv4 spec,
 * you must also add them to the definition below.
 */
#define	ACE4_VALID_MASK_BITS (\
    ACE4_READ_DATA | \
    ACE4_LIST_DIRECTORY | \
    ACE4_WRITE_DATA | \
    ACE4_ADD_FILE | \
    ACE4_APPEND_DATA | \
    ACE4_ADD_SUBDIRECTORY | \
    ACE4_READ_NAMED_ATTRS | \
    ACE4_WRITE_NAMED_ATTRS | \
    ACE4_EXECUTE | \
    ACE4_DELETE_CHILD | \
    ACE4_READ_ATTRIBUTES | \
    ACE4_WRITE_ATTRIBUTES | \
    ACE4_DELETE | \
    ACE4_READ_ACL | \
    ACE4_WRITE_ACL | \
    ACE4_WRITE_OWNER | \
    ACE4_SYNCHRONIZE)

/* Used to signify an undefined value for an acemask4 */
#define	ACE4_MASK_UNDEFINED 0x80000000

#define	ACE4_WHO_OWNER		"OWNER@"
#define	ACE4_WHO_GROUP		"GROUP@"
#define	ACE4_WHO_EVERYONE	"EVERYONE@"

struct nfsace4 {
	acetype4 type;
	aceflag4 flag;
	acemask4 access_mask;
	utf8string who;
};
typedef struct nfsace4 nfsace4;
#define	MODE4_SUID 0x800
#define	MODE4_SGID 0x400
#define	MODE4_SVTX 0x200
#define	MODE4_RUSR 0x100
#define	MODE4_WUSR 0x080
#define	MODE4_XUSR 0x040
#define	MODE4_RGRP 0x020
#define	MODE4_WGRP 0x010
#define	MODE4_XGRP 0x008
#define	MODE4_ROTH 0x004
#define	MODE4_WOTH 0x002
#define	MODE4_XOTH 0x001

/*
 * ACL conversion helpers
 */

typedef enum {
	ace4_unused,
	ace4_user_obj,
	ace4_user,
	ace4_group, /* includes GROUP and GROUP_OBJ */
	ace4_other_obj
} ace4_to_aent_state_t;

typedef struct ace4vals {
	utf8string *key; /* NB: not allocated here; points to existing utf8 */
	avl_node_t avl;
	acemask4 mask;
	acemask4 allowed;
	acemask4 denied;
	int aent_type;
} ace4vals_t;

typedef struct ace4_list {
	ace4vals_t user_obj;
	avl_tree_t user;
	int numusers;
	ace4vals_t group_obj;
	avl_tree_t group;
	int numgroups;
	ace4vals_t other_obj;
	acemask4 acl_mask;
	int hasmask;
	int dfacl_flag;
	ace4_to_aent_state_t state;
	int seen; /* bitmask of all aclent_t a_type values seen */
} ace4_list_t;

struct specdata4 {
	uint32_t specdata1;
	uint32_t specdata2;
};
typedef struct specdata4 specdata4;
#define	FH4_PERSISTENT 0x00000000
#define	FH4_NOEXPIRE_WITH_OPEN 0x00000001
#define	FH4_VOLATILE_ANY 0x00000002
#define	FH4_VOL_MIGRATION 0x00000004
#define	FH4_VOL_RENAME 0x00000008

typedef bitmap4 fattr4_supported_attrs;

typedef nfs_ftype4 fattr4_type;

typedef uint32_t fattr4_fh_expire_type;

typedef changeid4 fattr4_change;

typedef uint64_t fattr4_size;

typedef bool_t fattr4_link_support;

typedef bool_t fattr4_symlink_support;

typedef bool_t fattr4_named_attr;

typedef fsid4 fattr4_fsid;

typedef bool_t fattr4_unique_handles;

typedef uint32_t fattr4_lease_time;

typedef nfsstat4 fattr4_rdattr_error;

typedef struct {
	uint_t fattr4_acl_len;
	nfsace4 *fattr4_acl_val;
} fattr4_acl;

typedef uint32_t fattr4_aclsupport;

typedef bool_t fattr4_archive;

typedef bool_t fattr4_cansettime;

typedef bool_t fattr4_case_insensitive;

typedef bool_t fattr4_case_preserving;

typedef bool_t fattr4_chown_restricted;

typedef uint64_t fattr4_fileid;

typedef uint64_t fattr4_files_avail;

typedef nfs_fh4 fattr4_filehandle;

typedef uint64_t fattr4_files_free;

typedef uint64_t fattr4_files_total;

typedef fs_locations4 fattr4_fs_locations;

typedef bool_t fattr4_hidden;

typedef bool_t fattr4_homogeneous;

typedef uint64_t fattr4_maxfilesize;

typedef uint32_t fattr4_maxlink;

typedef uint32_t fattr4_maxname;

typedef uint64_t fattr4_maxread;

typedef uint64_t fattr4_maxwrite;

typedef utf8string fattr4_mimetype;

typedef mode4 fattr4_mode;

typedef uint64_t fattr4_mounted_on_fileid;

typedef bool_t fattr4_no_trunc;

typedef uint32_t fattr4_numlinks;

typedef utf8string fattr4_owner;

typedef utf8string fattr4_owner_group;

typedef uint64_t fattr4_quota_avail_hard;

typedef uint64_t fattr4_quota_avail_soft;

typedef uint64_t fattr4_quota_used;

typedef specdata4 fattr4_rawdev;

typedef uint64_t fattr4_space_avail;

typedef uint64_t fattr4_space_free;

typedef uint64_t fattr4_space_total;

typedef uint64_t fattr4_space_used;

typedef bool_t fattr4_system;

typedef nfstime4 fattr4_time_access;

typedef settime4 fattr4_time_access_set;

typedef nfstime4 fattr4_time_backup;

typedef nfstime4 fattr4_time_create;

typedef nfstime4 fattr4_time_delta;

typedef nfstime4 fattr4_time_metadata;

typedef nfstime4 fattr4_time_modify;

typedef settime4 fattr4_time_modify_set;
#define	FATTR4_SUPPORTED_ATTRS 0
#define	FATTR4_TYPE 1
#define	FATTR4_FH_EXPIRE_TYPE 2
#define	FATTR4_CHANGE 3
#define	FATTR4_SIZE 4
#define	FATTR4_LINK_SUPPORT 5
#define	FATTR4_SYMLINK_SUPPORT 6
#define	FATTR4_NAMED_ATTR 7
#define	FATTR4_FSID 8
#define	FATTR4_UNIQUE_HANDLES 9
#define	FATTR4_LEASE_TIME 10
#define	FATTR4_RDATTR_ERROR 11
#define	FATTR4_FILEHANDLE 19
#define	FATTR4_ACL 12
#define	FATTR4_ACLSUPPORT 13
#define	FATTR4_ARCHIVE 14
#define	FATTR4_CANSETTIME 15
#define	FATTR4_CASE_INSENSITIVE 16
#define	FATTR4_CASE_PRESERVING 17
#define	FATTR4_CHOWN_RESTRICTED 18
#define	FATTR4_FILEID 20
#define	FATTR4_FILES_AVAIL 21
#define	FATTR4_FILES_FREE 22
#define	FATTR4_FILES_TOTAL 23
#define	FATTR4_FS_LOCATIONS 24
#define	FATTR4_HIDDEN 25
#define	FATTR4_HOMOGENEOUS 26
#define	FATTR4_MAXFILESIZE 27
#define	FATTR4_MAXLINK 28
#define	FATTR4_MAXNAME 29
#define	FATTR4_MAXREAD 30
#define	FATTR4_MAXWRITE 31
#define	FATTR4_MIMETYPE 32
#define	FATTR4_MODE 33
#define	FATTR4_NO_TRUNC 34
#define	FATTR4_NUMLINKS 35
#define	FATTR4_OWNER 36
#define	FATTR4_OWNER_GROUP 37
#define	FATTR4_QUOTA_AVAIL_HARD 38
#define	FATTR4_QUOTA_AVAIL_SOFT 39
#define	FATTR4_QUOTA_USED 40
#define	FATTR4_RAWDEV 41
#define	FATTR4_SPACE_AVAIL 42
#define	FATTR4_SPACE_FREE 43
#define	FATTR4_SPACE_TOTAL 44
#define	FATTR4_SPACE_USED 45
#define	FATTR4_SYSTEM 46
#define	FATTR4_TIME_ACCESS 47
#define	FATTR4_TIME_ACCESS_SET 48
#define	FATTR4_TIME_BACKUP 49
#define	FATTR4_TIME_CREATE 50
#define	FATTR4_TIME_DELTA 51
#define	FATTR4_TIME_METADATA 52
#define	FATTR4_TIME_MODIFY 53
#define	FATTR4_TIME_MODIFY_SET 54
#define	FATTR4_MOUNTED_ON_FILEID 55

struct fattr4 {
	bitmap4 attrmask;
	char *attrlist4;
	uint_t attrlist4_len;
};
typedef struct fattr4 fattr4;

struct change_info4 {
	bool_t atomic;
	changeid4 before;
	changeid4 after;
};
typedef struct change_info4 change_info4;

struct clientaddr4 {
	char *r_netid;
	char *r_addr;
};
typedef struct clientaddr4 clientaddr4;

struct cb_client4 {
	uint32_t cb_program;
	clientaddr4 cb_location;
};
typedef struct cb_client4 cb_client4;

struct stateid4 {
	uint32_t seqid;
	char other[12];
};
typedef struct stateid4 stateid4;

struct nfs_client_id4 {
	verifier4 verifier;
	uint_t id_len;
	char *id_val;
};
typedef struct nfs_client_id4 nfs_client_id4;

struct open_owner4 {
	clientid4 clientid;
	uint_t owner_len;
	char *owner_val;
};
typedef struct open_owner4 open_owner4;

struct lock_owner4 {
	clientid4 clientid;
	uint_t owner_len;
	char *owner_val;
};
typedef struct lock_owner4 lock_owner4;

enum nfs_lock_type4 {
	READ_LT = 1,
	WRITE_LT = 2,
	READW_LT = 3,
	WRITEW_LT = 4
};
typedef enum nfs_lock_type4 nfs_lock_type4;
#define	ACCESS4_READ 0x00000001
#define	ACCESS4_LOOKUP 0x00000002
#define	ACCESS4_MODIFY 0x00000004
#define	ACCESS4_EXTEND 0x00000008
#define	ACCESS4_DELETE 0x00000010
#define	ACCESS4_EXECUTE 0x00000020

struct ACCESS4args {
	uint32_t access;
};
typedef struct ACCESS4args ACCESS4args;

struct ACCESS4res {
	nfsstat4 status;
	uint32_t supported;
	uint32_t access;
};
typedef struct ACCESS4res ACCESS4res;

struct CLOSE4args {
	seqid4 seqid;
	stateid4 open_stateid;
};
typedef struct CLOSE4args CLOSE4args;

struct CLOSE4res {
	nfsstat4 status;
	stateid4 open_stateid;
};
typedef struct CLOSE4res CLOSE4res;

struct COMMIT4args {
	offset4 offset;
	count4 count;
};
typedef struct COMMIT4args COMMIT4args;

struct COMMIT4res {
	nfsstat4 status;
	verifier4 writeverf;
};
typedef struct COMMIT4res COMMIT4res;

struct CREATE4args {
	nfs_ftype4 type;
	union {
		linktext4 linkdata;
		specdata4 devdata;
	} ftype4_u;
	component4 objname;
	fattr4 createattrs;
};
typedef struct CREATE4args CREATE4args;

struct CREATE4cargs {
	nfs_ftype4 type;
	union {
		char *clinkdata;
		specdata4 devdata;
	} ftype4_u;
	char *cname;
	fattr4 createattrs;
};
typedef struct CREATE4cargs CREATE4cargs;

struct CREATE4res {
	nfsstat4 status;
	change_info4 cinfo;
	bitmap4 attrset;
};
typedef struct CREATE4res CREATE4res;

struct DELEGPURGE4args {
	clientid4 clientid;
};
typedef struct DELEGPURGE4args DELEGPURGE4args;

struct DELEGPURGE4res {
	nfsstat4 status;
};
typedef struct DELEGPURGE4res DELEGPURGE4res;

struct DELEGRETURN4args {
	stateid4 deleg_stateid;
};
typedef struct DELEGRETURN4args DELEGRETURN4args;

struct DELEGRETURN4res {
	nfsstat4 status;
};
typedef struct DELEGRETURN4res DELEGRETURN4res;

struct mntinfo4;

struct GETATTR4args {
	bitmap4 attr_request;
	struct mntinfo4 *mi;
};
typedef struct GETATTR4args GETATTR4args;

struct nfs4_ga_ext_res;

struct nfs4_ga_res {
	vattr_t				n4g_va;
	unsigned			n4g_change_valid:1;
	unsigned			n4g_mon_fid_valid:1;
	unsigned			n4g_fsid_valid:1;
	uint_t				n4g_attrerr;
	uint_t				n4g_attrwhy;
	bitmap4				n4g_resbmap;
	fattr4_change			n4g_change;
	fattr4_fsid			n4g_fsid;
	fattr4_mounted_on_fileid	n4g_mon_fid;
	struct nfs4_ga_ext_res		*n4g_ext_res;
	vsecattr_t			n4g_vsa;
};
typedef struct nfs4_ga_res nfs4_ga_res_t;

struct GETATTR4res {
	nfsstat4 status;
	fattr4 obj_attributes;
	nfsstat4	ga_status;
	struct nfs4_ga_res ga_res;
};
typedef struct GETATTR4res GETATTR4res;

struct GETFH4res {
	nfsstat4 status;
	nfs_fh4 object;
};
typedef struct GETFH4res GETFH4res;

struct LINK4args {
	component4 newname;
};
typedef struct LINK4args LINK4args;

struct LINK4cargs {
	char *cnewname;
};
typedef struct LINK4cargs LINK4cargs;

struct LINK4res {
	nfsstat4 status;
	change_info4 cinfo;
};
typedef struct LINK4res LINK4res;

struct open_to_lock_owner4 {
	seqid4 open_seqid;
	stateid4 open_stateid;
	seqid4 lock_seqid;
	lock_owner4 lock_owner;
};
typedef struct open_to_lock_owner4 open_to_lock_owner4;

struct exist_lock_owner4 {
	stateid4 lock_stateid;
	seqid4 lock_seqid;
};
typedef struct exist_lock_owner4 exist_lock_owner4;

struct locker4 {
	bool_t new_lock_owner;
	union {
		open_to_lock_owner4 open_owner;
		exist_lock_owner4 lock_owner;
	} locker4_u;
};
typedef struct locker4 locker4;

struct LOCK4args {
	nfs_lock_type4 locktype;
	bool_t reclaim;
	offset4 offset;
	length4 length;
	locker4 locker;
};
typedef struct LOCK4args LOCK4args;

struct LOCK4denied {
	offset4 offset;
	length4 length;
	nfs_lock_type4 locktype;
	lock_owner4 owner;
};
typedef struct LOCK4denied LOCK4denied;

struct LOCK4res {
	nfsstat4 status;
	union {
		stateid4 lock_stateid;
		LOCK4denied denied;
	} LOCK4res_u;
};
typedef struct LOCK4res LOCK4res;

struct LOCKT4args {
	nfs_lock_type4 locktype;
	offset4 offset;
	length4 length;
	lock_owner4 owner;
};
typedef struct LOCKT4args LOCKT4args;

struct LOCKT4res {
	nfsstat4 status;
	LOCK4denied denied;
};
typedef struct LOCKT4res LOCKT4res;

struct LOCKU4args {
	nfs_lock_type4 locktype;
	seqid4 seqid;
	stateid4 lock_stateid;
	offset4 offset;
	length4 length;
};
typedef struct LOCKU4args LOCKU4args;

struct LOCKU4res {
	nfsstat4 status;
	stateid4 lock_stateid;
};
typedef struct LOCKU4res LOCKU4res;

struct LOOKUP4args {
	component4 objname;
};
typedef struct LOOKUP4args LOOKUP4args;

struct LOOKUP4cargs {
	char *cname;
};
typedef struct LOOKUP4cargs LOOKUP4cargs;

struct LOOKUP4res {
	nfsstat4 status;
};
typedef struct LOOKUP4res LOOKUP4res;

struct LOOKUPP4res {
	nfsstat4 status;
};
typedef struct LOOKUPP4res LOOKUPP4res;

struct NVERIFY4args {
	fattr4 obj_attributes;
};
typedef struct NVERIFY4args NVERIFY4args;

struct NVERIFY4res {
	nfsstat4 status;
};
typedef struct NVERIFY4res NVERIFY4res;

enum createmode4 {
	UNCHECKED4 = 0,
	GUARDED4 = 1,
	EXCLUSIVE4 = 2
};
typedef enum createmode4 createmode4;

enum opentype4 {
	OPEN4_NOCREATE = 0,
	OPEN4_CREATE = 1
};
typedef enum opentype4 opentype4;

enum limit_by4 {
	NFS_LIMIT_SIZE = 1,
	NFS_LIMIT_BLOCKS = 2
};
typedef enum limit_by4 limit_by4;

struct nfs_modified_limit4 {
	uint32_t num_blocks;
	uint32_t bytes_per_block;
};
typedef struct nfs_modified_limit4 nfs_modified_limit4;

struct nfs_space_limit4 {
	limit_by4 limitby;
	union {
		uint64_t filesize;
		nfs_modified_limit4 mod_blocks;
	} nfs_space_limit4_u;
};
typedef struct nfs_space_limit4 nfs_space_limit4;
#define	OPEN4_SHARE_ACCESS_READ 0x00000001
#define	OPEN4_SHARE_ACCESS_WRITE 0x00000002
#define	OPEN4_SHARE_ACCESS_BOTH 0x00000003
#define	OPEN4_SHARE_DENY_NONE 0x00000000
#define	OPEN4_SHARE_DENY_READ 0x00000001
#define	OPEN4_SHARE_DENY_WRITE 0x00000002
#define	OPEN4_SHARE_DENY_BOTH 0x00000003

enum open_delegation_type4 {