[deliverable/linux.git] / include / linux / nfs4.h

/*
 *  include/linux/nfs4.h
 *
 *  NFSv4 protocol definitions.
 *
 *  Copyright (c) 2002 The Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  Kendrick Smith <kmsmith@umich.edu>
 *  Andy Adamson   <andros@umich.edu>
 */

#ifndef _LINUX_NFS4_H
#define _LINUX_NFS4_H

#include <linux/types.h>

#define NFS4_BITMAP_SIZE	2
#define NFS4_VERIFIER_SIZE	8
#define NFS4_STATEID_SEQID_SIZE 4
#define NFS4_STATEID_OTHER_SIZE 12
#define NFS4_STATEID_SIZE	(NFS4_STATEID_SEQID_SIZE + NFS4_STATEID_OTHER_SIZE)
#define NFS4_FHSIZE		128
#define NFS4_MAXPATHLEN		PATH_MAX
#define NFS4_MAXNAMLEN		NAME_MAX
#define NFS4_OPAQUE_LIMIT	1024
#define NFS4_MAX_SESSIONID_LEN	16

#define NFS4_ACCESS_READ        0x0001
#define NFS4_ACCESS_LOOKUP      0x0002
#define NFS4_ACCESS_MODIFY      0x0004
#define NFS4_ACCESS_EXTEND      0x0008
#define NFS4_ACCESS_DELETE      0x0010
#define NFS4_ACCESS_EXECUTE     0x0020

#define NFS4_FH_PERSISTENT		0x0000
#define NFS4_FH_NOEXPIRE_WITH_OPEN	0x0001
#define NFS4_FH_VOLATILE_ANY		0x0002
#define NFS4_FH_VOL_MIGRATION		0x0004
#define NFS4_FH_VOL_RENAME		0x0008

#define NFS4_OPEN_RESULT_CONFIRM 0x0002
#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004

#define NFS4_SHARE_ACCESS_MASK	0x000F
#define NFS4_SHARE_ACCESS_READ	0x0001
#define NFS4_SHARE_ACCESS_WRITE	0x0002
#define NFS4_SHARE_ACCESS_BOTH	0x0003
#define NFS4_SHARE_DENY_READ	0x0001
#define NFS4_SHARE_DENY_WRITE	0x0002
#define NFS4_SHARE_DENY_BOTH	0x0003

/* nfs41 */
#define NFS4_SHARE_WANT_MASK		0xFF00
#define NFS4_SHARE_WANT_NO_PREFERENCE	0x0000
#define NFS4_SHARE_WANT_READ_DELEG	0x0100
#define NFS4_SHARE_WANT_WRITE_DELEG	0x0200
#define NFS4_SHARE_WANT_ANY_DELEG	0x0300
#define NFS4_SHARE_WANT_NO_DELEG	0x0400
#define NFS4_SHARE_WANT_CANCEL		0x0500

#define NFS4_SHARE_WHEN_MASK		0xF0000
#define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL	0x10000
#define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED		0x20000

#define NFS4_SET_TO_SERVER_TIME	0
#define NFS4_SET_TO_CLIENT_TIME	1

#define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
#define NFS4_ACE_ACCESS_DENIED_ACE_TYPE  1
#define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE   2
#define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE   3

#define ACL4_SUPPORT_ALLOW_ACL 0x01
#define ACL4_SUPPORT_DENY_ACL  0x02
#define ACL4_SUPPORT_AUDIT_ACL 0x04
#define ACL4_SUPPORT_ALARM_ACL 0x08

#define NFS4_ACE_FILE_INHERIT_ACE             0x00000001
#define NFS4_ACE_DIRECTORY_INHERIT_ACE        0x00000002
#define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE     0x00000004
#define NFS4_ACE_INHERIT_ONLY_ACE             0x00000008
#define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
#define NFS4_ACE_FAILED_ACCESS_ACE_FLAG       0x00000020
#define NFS4_ACE_IDENTIFIER_GROUP             0x00000040

#define NFS4_ACE_READ_DATA                    0x00000001
#define NFS4_ACE_LIST_DIRECTORY               0x00000001
#define NFS4_ACE_WRITE_DATA                   0x00000002
#define NFS4_ACE_ADD_FILE                     0x00000002
#define NFS4_ACE_APPEND_DATA                  0x00000004
#define NFS4_ACE_ADD_SUBDIRECTORY             0x00000004
#define NFS4_ACE_READ_NAMED_ATTRS             0x00000008
#define NFS4_ACE_WRITE_NAMED_ATTRS            0x00000010
#define NFS4_ACE_EXECUTE                      0x00000020
#define NFS4_ACE_DELETE_CHILD                 0x00000040
#define NFS4_ACE_READ_ATTRIBUTES              0x00000080
#define NFS4_ACE_WRITE_ATTRIBUTES             0x00000100
#define NFS4_ACE_DELETE                       0x00010000
#define NFS4_ACE_READ_ACL                     0x00020000
#define NFS4_ACE_WRITE_ACL                    0x00040000
#define NFS4_ACE_WRITE_OWNER                  0x00080000
#define NFS4_ACE_SYNCHRONIZE                  0x00100000
#define NFS4_ACE_GENERIC_READ                 0x00120081
#define NFS4_ACE_GENERIC_WRITE                0x00160106
#define NFS4_ACE_GENERIC_EXECUTE              0x001200A0
#define NFS4_ACE_MASK_ALL                     0x001F01FF

#define EXCHGID4_FLAG_SUPP_MOVED_REFER		0x00000001
#define EXCHGID4_FLAG_SUPP_MOVED_MIGR		0x00000002
#define EXCHGID4_FLAG_USE_NON_PNFS		0x00010000
#define EXCHGID4_FLAG_USE_PNFS_MDS		0x00020000
#define EXCHGID4_FLAG_USE_PNFS_DS		0x00040000
#define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A	0x40000000
#define EXCHGID4_FLAG_CONFIRMED_R		0x80000000
/*
 * Since the validity of these bits depends on whether
 * they're set in the argument or response, have separate
 * invalid flag masks for arg (_A) and resp (_R).
 */
#define EXCHGID4_FLAG_MASK_A			0x40070003
#define EXCHGID4_FLAG_MASK_R			0x80070003

#define SEQ4_STATUS_CB_PATH_DOWN		0x00000001
#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING	0x00000002
#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED	0x00000004
#define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED	0x00000008
#define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED	0x00000010
#define SEQ4_STATUS_ADMIN_STATE_REVOKED		0x00000020
#define SEQ4_STATUS_RECALLABLE_STATE_REVOKED	0x00000040
#define SEQ4_STATUS_LEASE_MOVED			0x00000080
#define SEQ4_STATUS_RESTART_RECLAIM_NEEDED	0x00000100
#define SEQ4_STATUS_CB_PATH_DOWN_SESSION	0x00000200
#define SEQ4_STATUS_BACKCHANNEL_FAULT		0x00000400

#define NFS4_MAX_UINT64	(~(u64)0)

/* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
 * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
 */
#define NFS4_MAX_OPS   8

/* Our NFS4 client back channel server only wants the cb_sequene and the
 * actual operation per compound
 */
#define NFS4_MAX_BACK_CHANNEL_OPS 2

enum nfs4_acl_whotype {
	NFS4_ACL_WHO_NAMED = 0,
	NFS4_ACL_WHO_OWNER,
	NFS4_ACL_WHO_GROUP,
	NFS4_ACL_WHO_EVERYONE,
};

#ifdef __KERNEL__
#include <linux/list.h>

struct nfs4_ace {
	uint32_t	type;
	uint32_t	flag;
	uint32_t	access_mask;
	int		whotype;
	uid_t		who;
};

struct nfs4_acl {
	uint32_t	naces;
	struct nfs4_ace	aces[0];
};

typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;

struct nfs41_stateid {
	__be32 seqid;
	char other[NFS4_STATEID_OTHER_SIZE];
} __attribute__ ((packed));

typedef union {
	char data[NFS4_STATEID_SIZE];
	struct nfs41_stateid stateid;
} nfs4_stateid;

enum nfs_opnum4 {
	OP_ACCESS = 3,
	OP_CLOSE = 4,
	OP_COMMIT = 5,
	OP_CREATE = 6,
	OP_DELEGPURGE = 7,
	OP_DELEGRETURN = 8,
	OP_GETATTR = 9,
	OP_GETFH = 10,
	OP_LINK = 11,
	OP_LOCK = 12,
	OP_LOCKT = 13,
	OP_LOCKU = 14,
	OP_LOOKUP = 15,
	OP_LOOKUPP = 16,
	OP_NVERIFY = 17,
	OP_OPEN = 18,
	OP_OPENATTR = 19,
	OP_OPEN_CONFIRM = 20,
	OP_OPEN_DOWNGRADE = 21,
	OP_PUTFH = 22,
	OP_PUTPUBFH = 23,
	OP_PUTROOTFH = 24,
	OP_READ = 25,
	OP_READDIR = 26,
	OP_READLINK = 27,
	OP_REMOVE = 28,
	OP_RENAME = 29,
	OP_RENEW = 30,
	OP_RESTOREFH = 31,
	OP_SAVEFH = 32,
	OP_SECINFO = 33,
	OP_SETATTR = 34,
	OP_SETCLIENTID = 35,
	OP_SETCLIENTID_CONFIRM = 36,
	OP_VERIFY = 37,
	OP_WRITE = 38,
	OP_RELEASE_LOCKOWNER = 39,

	/* nfs41 */
	OP_BACKCHANNEL_CTL = 40,
	OP_BIND_CONN_TO_SESSION = 41,
	OP_EXCHANGE_ID = 42,
	OP_CREATE_SESSION = 43,
	OP_DESTROY_SESSION = 44,
	OP_FREE_STATEID = 45,
	OP_GET_DIR_DELEGATION = 46,
	OP_GETDEVICEINFO = 47,
	OP_GETDEVICELIST = 48,
	OP_LAYOUTCOMMIT = 49,
	OP_LAYOUTGET = 50,
	OP_LAYOUTRETURN = 51,
	OP_SECINFO_NO_NAME = 52,
	OP_SEQUENCE = 53,
	OP_SET_SSV = 54,
	OP_TEST_STATEID = 55,
	OP_WANT_DELEGATION = 56,
	OP_DESTROY_CLIENTID = 57,
	OP_RECLAIM_COMPLETE = 58,

	OP_ILLEGAL = 10044,
};

/*Defining first and last NFS4 operations implemented.
Needs to be updated if more operations are defined in future.*/

#define FIRST_NFS4_OP	OP_ACCESS
#define LAST_NFS4_OP 	OP_RECLAIM_COMPLETE

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,
	/* Unused/reserved 19 */
	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,

	/* nfs41 */
	NFS4ERR_BADIOMODE	= 10049,
	NFS4ERR_BADLAYOUT	= 10050,
	NFS4ERR_BAD_SESSION_DIGEST = 10051,
	NFS4ERR_BADSESSION	= 10052,
	NFS4ERR_BADSLOT		= 10053,
	NFS4ERR_COMPLETE_ALREADY = 10054,
	NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
	NFS4ERR_DELEG_ALREADY_WANTED = 10056,
	NFS4ERR_BACK_CHAN_BUSY	= 10057,	/* backchan reqs outstanding */
	NFS4ERR_LAYOUTTRYLATER	= 10058,
	NFS4ERR_LAYOUTUNAVAILABLE = 10059,
	NFS4ERR_NOMATCHING_LAYOUT = 10060,
	NFS4ERR_RECALLCONFLICT	= 10061,
	NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
	NFS4ERR_SEQ_MISORDERED = 10063, 	/* unexpected seq.id in req */
	NFS4ERR_SEQUENCE_POS	= 10064,	/* [CB_]SEQ. op not 1st op */
	NFS4ERR_REQ_TOO_BIG	= 10065,	/* request too big */
	NFS4ERR_REP_TOO_BIG	= 10066,	/* reply too big */
	NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,	/* rep. not all cached */
	NFS4ERR_RETRY_UNCACHED_REP = 10068,	/* retry & rep. uncached */
	NFS4ERR_UNSAFE_COMPOUND = 10069,	/* retry/recovery too hard */
	NFS4ERR_TOO_MANY_OPS	= 10070,	/* too many ops in [CB_]COMP */
	NFS4ERR_OP_NOT_IN_SESSION = 10071,	/* op needs [CB_]SEQ. op */
	NFS4ERR_HASH_ALG_UNSUPP = 10072,	/* hash alg. not supp. */
						/* Error 10073 is unused. */
	NFS4ERR_CLIENTID_BUSY	= 10074,	/* clientid has state */
	NFS4ERR_PNFS_IO_HOLE	= 10075,	/* IO to _SPARSE file hole */
	NFS4ERR_SEQ_FALSE_RETRY	= 10076,	/* retry not origional */
	NFS4ERR_BAD_HIGH_SLOT	= 10077,	/* sequence arg bad */
	NFS4ERR_DEADSESSION	= 10078,	/* persistent session dead */
	NFS4ERR_ENCR_ALG_UNSUPP = 10079,	/* SSV alg mismatch */
	NFS4ERR_PNFS_NO_LAYOUT	= 10080,	/* direct I/O with no layout */
	NFS4ERR_NOT_ONLY_OP	= 10081,	/* bad compound */
	NFS4ERR_WRONG_CRED	= 10082,	/* permissions:state change */
	NFS4ERR_WRONG_TYPE	= 10083,	/* current operation mismatch */
	NFS4ERR_DIRDELEG_UNAVAIL = 10084,	/* no directory delegation */
	NFS4ERR_REJECT_DELEG	= 10085,	/* on callback */
	NFS4ERR_RETURNCONFLICT	= 10086,	/* outstanding layoutreturn */
	NFS4ERR_DELEG_REVOKED	= 10087,	/* deleg./layout revoked */
};

/*
 * Note: NF4BAD is not actually part of the protocol; it is just used
 * internally by nfsd.
 */
enum nfs_ftype4 {
	NF4BAD		= 0,
        NF4REG          = 1,    /* Regular File */
        NF4DIR          = 2,    /* Directory */
        NF4BLK          = 3,    /* Special File - block device */
        NF4CHR          = 4,    /* Special File - character device */
        NF4LNK          = 5,    /* Symbolic Link */
        NF4SOCK         = 6,    /* Special File - socket */
        NF4FIFO         = 7,    /* Special File - fifo */
        NF4ATTRDIR      = 8,    /* Attribute Directory */
        NF4NAMEDATTR    = 9     /* Named Attribute */
};

enum open_claim_type4 {
	NFS4_OPEN_CLAIM_NULL = 0,
	NFS4_OPEN_CLAIM_PREVIOUS = 1,
	NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
	NFS4_OPEN_CLAIM_DELEGATE_PREV = 3
};

enum opentype4 {
	NFS4_OPEN_NOCREATE = 0,
	NFS4_OPEN_CREATE = 1
};

enum createmode4 {
	NFS4_CREATE_UNCHECKED = 0,
	NFS4_CREATE_GUARDED = 1,
	NFS4_CREATE_EXCLUSIVE = 2,
	/*
	 * New to NFSv4.1. If session is persistent,
	 * GUARDED4 MUST be used. Otherwise, use
	 * EXCLUSIVE4_1 instead of EXCLUSIVE4.
	 */
	NFS4_CREATE_EXCLUSIVE4_1 = 3
};

enum limit_by4 {
	NFS4_LIMIT_SIZE = 1,
	NFS4_LIMIT_BLOCKS = 2
};

enum open_delegation_type4 {
	NFS4_OPEN_DELEGATE_NONE = 0,
	NFS4_OPEN_DELEGATE_READ = 1,
	NFS4_OPEN_DELEGATE_WRITE = 2
};

enum lock_type4 {
	NFS4_UNLOCK_LT = 0,
	NFS4_READ_LT = 1,
	NFS4_WRITE_LT = 2,
	NFS4_READW_LT = 3,
	NFS4_WRITEW_LT = 4
};


/* Mandatory Attributes */
#define FATTR4_WORD0_SUPPORTED_ATTRS    (1UL << 0)
#define FATTR4_WORD0_TYPE               (1UL << 1)
#define FATTR4_WORD0_FH_EXPIRE_TYPE     (1UL << 2)
#define FATTR4_WORD0_CHANGE             (1UL << 3)
#define FATTR4_WORD0_SIZE               (1UL << 4)
#define FATTR4_WORD0_LINK_SUPPORT       (1UL << 5)
#define FATTR4_WORD0_SYMLINK_SUPPORT    (1UL << 6)
#define FATTR4_WORD0_NAMED_ATTR         (1UL << 7)
#define FATTR4_WORD0_FSID               (1UL << 8)
#define FATTR4_WORD0_UNIQUE_HANDLES     (1UL << 9)
#define FATTR4_WORD0_LEASE_TIME         (1UL << 10)
#define FATTR4_WORD0_RDATTR_ERROR       (1UL << 11)
/* Mandatory in NFSv4.1 */
#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)

/* Recommended Attributes */
#define FATTR4_WORD0_ACL                (1UL << 12)
#define FATTR4_WORD0_ACLSUPPORT         (1UL << 13)
#define FATTR4_WORD0_ARCHIVE            (1UL << 14)
#define FATTR4_WORD0_CANSETTIME         (1UL << 15)
#define FATTR4_WORD0_CASE_INSENSITIVE   (1UL << 16)
#define FATTR4_WORD0_CASE_PRESERVING    (1UL << 17)
#define FATTR4_WORD0_CHOWN_RESTRICTED   (1UL << 18)
#define FATTR4_WORD0_FILEHANDLE         (1UL << 19)
#define FATTR4_WORD0_FILEID             (1UL << 20)
#define FATTR4_WORD0_FILES_AVAIL        (1UL << 21)
#define FATTR4_WORD0_FILES_FREE         (1UL << 22)
#define FATTR4_WORD0_FILES_TOTAL        (1UL << 23)
#define FATTR4_WORD0_FS_LOCATIONS       (1UL << 24)
#define FATTR4_WORD0_HIDDEN             (1UL << 25)
#define FATTR4_WORD0_HOMOGENEOUS        (1UL << 26)
#define FATTR4_WORD0_MAXFILESIZE        (1UL << 27)
#define FATTR4_WORD0_MAXLINK            (1UL << 28)
#define FATTR4_WORD0_MAXNAME            (1UL << 29)
#define FATTR4_WORD0_MAXREAD            (1UL << 30)
#define FATTR4_WORD0_MAXWRITE           (1UL << 31)
#define FATTR4_WORD1_MIMETYPE           (1UL << 0)
#define FATTR4_WORD1_MODE               (1UL << 1)
#define FATTR4_WORD1_NO_TRUNC           (1UL << 2)
#define FATTR4_WORD1_NUMLINKS           (1UL << 3)
#define FATTR4_WORD1_OWNER              (1UL << 4)
#define FATTR4_WORD1_OWNER_GROUP        (1UL << 5)
#define FATTR4_WORD1_QUOTA_HARD         (1UL << 6)
#define FATTR4_WORD1_QUOTA_SOFT         (1UL << 7)
#define FATTR4_WORD1_QUOTA_USED         (1UL << 8)
#define FATTR4_WORD1_RAWDEV             (1UL << 9)
#define FATTR4_WORD1_SPACE_AVAIL        (1UL << 10)
#define FATTR4_WORD1_SPACE_FREE         (1UL << 11)
#define FATTR4_WORD1_SPACE_TOTAL        (1UL << 12)
#define FATTR4_WORD1_SPACE_USED         (1UL << 13)
#define FATTR4_WORD1_SYSTEM             (1UL << 14)
#define FATTR4_WORD1_TIME_ACCESS        (1UL << 15)
#define FATTR4_WORD1_TIME_ACCESS_SET    (1UL << 16)
#define FATTR4_WORD1_TIME_BACKUP        (1UL << 17)
#define FATTR4_WORD1_TIME_CREATE        (1UL << 18)
#define FATTR4_WORD1_TIME_DELTA         (1UL << 19)
#define FATTR4_WORD1_TIME_METADATA      (1UL << 20)
#define FATTR4_WORD1_TIME_MODIFY        (1UL << 21)
#define FATTR4_WORD1_TIME_MODIFY_SET    (1UL << 22)
#define FATTR4_WORD1_MOUNTED_ON_FILEID  (1UL << 23)
#define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
#define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)

#define NFSPROC4_NULL 0
#define NFSPROC4_COMPOUND 1
#define NFS4_VERSION 4
#define NFS4_MINOR_VERSION 0

#if defined(CONFIG_NFS_V4_1)
#define NFS4_MAX_MINOR_VERSION 1
#else
#define NFS4_MAX_MINOR_VERSION 0
#endif /* CONFIG_NFS_V4_1 */

#define NFS4_DEBUG 1

/* Index of predefined Linux client operations */

enum {
	NFSPROC4_CLNT_NULL = 0,		/* Unused */
	NFSPROC4_CLNT_READ,
	NFSPROC4_CLNT_WRITE,
	NFSPROC4_CLNT_COMMIT,
	NFSPROC4_CLNT_OPEN,
	NFSPROC4_CLNT_OPEN_CONFIRM,
	NFSPROC4_CLNT_OPEN_NOATTR,
	NFSPROC4_CLNT_OPEN_DOWNGRADE,
	NFSPROC4_CLNT_CLOSE,
	NFSPROC4_CLNT_SETATTR,
	NFSPROC4_CLNT_FSINFO,
	NFSPROC4_CLNT_RENEW,
	NFSPROC4_CLNT_SETCLIENTID,
	NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
	NFSPROC4_CLNT_LOCK,
	NFSPROC4_CLNT_LOCKT,
	NFSPROC4_CLNT_LOCKU,
	NFSPROC4_CLNT_ACCESS,
	NFSPROC4_CLNT_GETATTR,
	NFSPROC4_CLNT_LOOKUP,
	NFSPROC4_CLNT_LOOKUP_ROOT,
	NFSPROC4_CLNT_REMOVE,
	NFSPROC4_CLNT_RENAME,
	NFSPROC4_CLNT_LINK,
	NFSPROC4_CLNT_SYMLINK,
	NFSPROC4_CLNT_CREATE,
	NFSPROC4_CLNT_PATHCONF,
	NFSPROC4_CLNT_STATFS,
	NFSPROC4_CLNT_READLINK,
	NFSPROC4_CLNT_READDIR,
	NFSPROC4_CLNT_SERVER_CAPS,
	NFSPROC4_CLNT_DELEGRETURN,
	NFSPROC4_CLNT_GETACL,
	NFSPROC4_CLNT_SETACL,
	NFSPROC4_CLNT_FS_LOCATIONS,
	NFSPROC4_CLNT_RELEASE_LOCKOWNER,

	/* nfs41 */
	NFSPROC4_CLNT_EXCHANGE_ID,
	NFSPROC4_CLNT_CREATE_SESSION,
	NFSPROC4_CLNT_DESTROY_SESSION,
	NFSPROC4_CLNT_SEQUENCE,
	NFSPROC4_CLNT_GET_LEASE_TIME,
	NFSPROC4_CLNT_RECLAIM_COMPLETE,
};

/* nfs41 types */
struct nfs4_sessionid {
	unsigned char data[NFS4_MAX_SESSIONID_LEN];
};

/* Create Session Flags */
#define SESSION4_PERSIST	 0x001
#define SESSION4_BACK_CHAN 	 0x002
#define SESSION4_RDMA		 0x004

enum state_protect_how4 {
	SP4_NONE	= 0,
	SP4_MACH_CRED	= 1,
	SP4_SSV		= 2
};

enum pnfs_layouttype {
	LAYOUT_NFSV4_1_FILES  = 1,
	LAYOUT_OSD2_OBJECTS = 2,
	LAYOUT_BLOCK_VOLUME = 3,
};

/* used for both layout return and recall */
enum pnfs_layoutreturn_type {
	RETURN_FILE = 1,
	RETURN_FSID = 2,
	RETURN_ALL  = 3
};

enum pnfs_iomode {
	IOMODE_READ = 1,
	IOMODE_RW = 2,
	IOMODE_ANY = 3,
};

enum pnfs_notify_deviceid_type4 {
	NOTIFY_DEVICEID4_CHANGE = 1 << 1,
	NOTIFY_DEVICEID4_DELETE = 1 << 2,
};

#define NFL4_UFLG_MASK			0x0000003F
#define NFL4_UFLG_DENSE			0x00000001
#define NFL4_UFLG_COMMIT_THRU_MDS	0x00000002
#define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK	0xFFFFFFC0

/* Encoded in the loh_body field of type layouthint4 */
enum filelayout_hint_care4 {
	NFLH4_CARE_DENSE		= NFL4_UFLG_DENSE,
	NFLH4_CARE_COMMIT_THRU_MDS	= NFL4_UFLG_COMMIT_THRU_MDS,
	NFLH4_CARE_STRIPE_UNIT_SIZE	= 0x00000040,
	NFLH4_CARE_STRIPE_COUNT		= 0x00000080
};

#define NFS4_DEVICEID4_SIZE 16

struct nfs4_deviceid {
	char data[NFS4_DEVICEID4_SIZE];
};

#endif
#endif

/*
 * Local variables:
 *  c-basic-offset: 8
 * End:
 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* include/linux/nfs4.h
	3	*
	4	* NFSv4 protocol definitions.
	5	*
	6	* Copyright (c) 2002 The Regents of the University of Michigan.
	7	* All rights reserved.
	8	*
	9	* Kendrick Smith <kmsmith@umich.edu>
	10	* Andy Adamson <andros@umich.edu>
	11	*/
	12
	13	#ifndef _LINUX_NFS4_H
	14	#define _LINUX_NFS4_H
	15
	16	#include <linux/types.h>
1da177e4	17
aa53ed54	18	#define NFS4_BITMAP_SIZE 2
1da177e4	19	#define NFS4_VERIFIER_SIZE 8
94499252 AB	20	#define NFS4_STATEID_SEQID_SIZE 4
	21	#define NFS4_STATEID_OTHER_SIZE 12
	22	#define NFS4_STATEID_SIZE (NFS4_STATEID_SEQID_SIZE + NFS4_STATEID_OTHER_SIZE)
1da177e4 LT	23	#define NFS4_FHSIZE 128
	24	#define NFS4_MAXPATHLEN PATH_MAX
	25	#define NFS4_MAXNAMLEN NAME_MAX
99fe60d0	26	#define NFS4_OPAQUE_LIMIT 1024
18df1884	27	#define NFS4_MAX_SESSIONID_LEN 16
1da177e4 LT	28
	29	#define NFS4_ACCESS_READ 0x0001
	30	#define NFS4_ACCESS_LOOKUP 0x0002
	31	#define NFS4_ACCESS_MODIFY 0x0004
	32	#define NFS4_ACCESS_EXTEND 0x0008
	33	#define NFS4_ACCESS_DELETE 0x0010
	34	#define NFS4_ACCESS_EXECUTE 0x0020
	35
49640001	36	#define NFS4_FH_PERSISTENT 0x0000
1da177e4 LT	37	#define NFS4_FH_NOEXPIRE_WITH_OPEN 0x0001
	38	#define NFS4_FH_VOLATILE_ANY 0x0002
	39	#define NFS4_FH_VOL_MIGRATION 0x0004
	40	#define NFS4_FH_VOL_RENAME 0x0008
	41
	42	#define NFS4_OPEN_RESULT_CONFIRM 0x0002
	43	#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004
	44
18df1884	45	#define NFS4_SHARE_ACCESS_MASK 0x000F
1da177e4 LT	46	#define NFS4_SHARE_ACCESS_READ 0x0001
	47	#define NFS4_SHARE_ACCESS_WRITE 0x0002
	48	#define NFS4_SHARE_ACCESS_BOTH 0x0003
	49	#define NFS4_SHARE_DENY_READ 0x0001
	50	#define NFS4_SHARE_DENY_WRITE 0x0002
	51	#define NFS4_SHARE_DENY_BOTH 0x0003
	52
18df1884 BH	53	/* nfs41 */
	54	#define NFS4_SHARE_WANT_MASK 0xFF00
	55	#define NFS4_SHARE_WANT_NO_PREFERENCE 0x0000
	56	#define NFS4_SHARE_WANT_READ_DELEG 0x0100
	57	#define NFS4_SHARE_WANT_WRITE_DELEG 0x0200
	58	#define NFS4_SHARE_WANT_ANY_DELEG 0x0300
	59	#define NFS4_SHARE_WANT_NO_DELEG 0x0400
	60	#define NFS4_SHARE_WANT_CANCEL 0x0500
	61
	62	#define NFS4_SHARE_WHEN_MASK 0xF0000
	63	#define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL 0x10000
	64	#define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED 0x20000
	65
1da177e4 LT	66	#define NFS4_SET_TO_SERVER_TIME 0
	67	#define NFS4_SET_TO_CLIENT_TIME 1
	68
	69	#define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
	70	#define NFS4_ACE_ACCESS_DENIED_ACE_TYPE 1
	71	#define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE 2
	72	#define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE 3
	73
	74	#define ACL4_SUPPORT_ALLOW_ACL 0x01
	75	#define ACL4_SUPPORT_DENY_ACL 0x02
	76	#define ACL4_SUPPORT_AUDIT_ACL 0x04
	77	#define ACL4_SUPPORT_ALARM_ACL 0x08
	78
	79	#define NFS4_ACE_FILE_INHERIT_ACE 0x00000001
	80	#define NFS4_ACE_DIRECTORY_INHERIT_ACE 0x00000002
	81	#define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE 0x00000004
	82	#define NFS4_ACE_INHERIT_ONLY_ACE 0x00000008
	83	#define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG 0x00000010
	84	#define NFS4_ACE_FAILED_ACCESS_ACE_FLAG 0x00000020
	85	#define NFS4_ACE_IDENTIFIER_GROUP 0x00000040
1da177e4 LT	86
	87	#define NFS4_ACE_READ_DATA 0x00000001
	88	#define NFS4_ACE_LIST_DIRECTORY 0x00000001
	89	#define NFS4_ACE_WRITE_DATA 0x00000002
	90	#define NFS4_ACE_ADD_FILE 0x00000002
	91	#define NFS4_ACE_APPEND_DATA 0x00000004
	92	#define NFS4_ACE_ADD_SUBDIRECTORY 0x00000004
	93	#define NFS4_ACE_READ_NAMED_ATTRS 0x00000008
	94	#define NFS4_ACE_WRITE_NAMED_ATTRS 0x00000010
	95	#define NFS4_ACE_EXECUTE 0x00000020
	96	#define NFS4_ACE_DELETE_CHILD 0x00000040
	97	#define NFS4_ACE_READ_ATTRIBUTES 0x00000080
	98	#define NFS4_ACE_WRITE_ATTRIBUTES 0x00000100
	99	#define NFS4_ACE_DELETE 0x00010000
	100	#define NFS4_ACE_READ_ACL 0x00020000
	101	#define NFS4_ACE_WRITE_ACL 0x00040000
	102	#define NFS4_ACE_WRITE_OWNER 0x00080000
	103	#define NFS4_ACE_SYNCHRONIZE 0x00100000
	104	#define NFS4_ACE_GENERIC_READ 0x00120081
	105	#define NFS4_ACE_GENERIC_WRITE 0x00160106
	106	#define NFS4_ACE_GENERIC_EXECUTE 0x001200A0
	107	#define NFS4_ACE_MASK_ALL 0x001F01FF
	108
18df1884 BH	109	#define EXCHGID4_FLAG_SUPP_MOVED_REFER 0x00000001
	110	#define EXCHGID4_FLAG_SUPP_MOVED_MIGR 0x00000002
	111	#define EXCHGID4_FLAG_USE_NON_PNFS 0x00010000
	112	#define EXCHGID4_FLAG_USE_PNFS_MDS 0x00020000
	113	#define EXCHGID4_FLAG_USE_PNFS_DS 0x00040000
	114	#define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A 0x40000000
	115	#define EXCHGID4_FLAG_CONFIRMED_R 0x80000000
	116	/*
	117	* Since the validity of these bits depends on whether
	118	* they're set in the argument or response, have separate
	119	* invalid flag masks for arg (_A) and resp (_R).
	120	*/
	121	#define EXCHGID4_FLAG_MASK_A 0x40070003
	122	#define EXCHGID4_FLAG_MASK_R 0x80070003
	123
	124	#define SEQ4_STATUS_CB_PATH_DOWN 0x00000001
	125	#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING 0x00000002
	126	#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED 0x00000004
	127	#define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED 0x00000008
	128	#define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED 0x00000010
	129	#define SEQ4_STATUS_ADMIN_STATE_REVOKED 0x00000020
	130	#define SEQ4_STATUS_RECALLABLE_STATE_REVOKED 0x00000040
	131	#define SEQ4_STATUS_LEASE_MOVED 0x00000080
	132	#define SEQ4_STATUS_RESTART_RECLAIM_NEEDED 0x00000100
0629e370 AB	133	#define SEQ4_STATUS_CB_PATH_DOWN_SESSION 0x00000200
0629e370 AB	134	#define SEQ4_STATUS_BACKCHANNEL_FAULT 0x00000400
18df1884	135
87df4de8 BH	136	#define NFS4_MAX_UINT64 (~(u64)0)
87df4de8 BH	137
fc931582 AA	138	/* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
	139	* If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
	140	*/
	141	#define NFS4_MAX_OPS 8
	142
	143	/* Our NFS4 client back channel server only wants the cb_sequene and the
	144	* actual operation per compound
	145	*/
	146	#define NFS4_MAX_BACK_CHANNEL_OPS 2
	147
1da177e4 LT	148	enum nfs4_acl_whotype {
	149	NFS4_ACL_WHO_NAMED = 0,
	150	NFS4_ACL_WHO_OWNER,
	151	NFS4_ACL_WHO_GROUP,
	152	NFS4_ACL_WHO_EVERYONE,
	153	};
	154
997b7af2 DW	155	#ifdef __KERNEL__
	156	#include <linux/list.h>
	157
1da177e4 LT	158	struct nfs4_ace {
	159	uint32_t type;
	160	uint32_t flag;
	161	uint32_t access_mask;
	162	int whotype;
	163	uid_t who;
1da177e4 LT	164	};
	165
	166	struct nfs4_acl {
	167	uint32_t naces;
28e05dd8	168	struct nfs4_ace aces[0];
1da177e4 LT	169	};
	170
	171	typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
94499252 AB	172
	173	struct nfs41_stateid {
	174	__be32 seqid;
	175	char other[NFS4_STATEID_OTHER_SIZE];
	176	} __attribute__ ((packed));
	177
	178	typedef union {
	179	char data[NFS4_STATEID_SIZE];
	180	struct nfs41_stateid stateid;
	181	} nfs4_stateid;
1da177e4 LT	182
	183	enum nfs_opnum4 {
	184	OP_ACCESS = 3,
	185	OP_CLOSE = 4,
	186	OP_COMMIT = 5,
	187	OP_CREATE = 6,
	188	OP_DELEGPURGE = 7,
	189	OP_DELEGRETURN = 8,
	190	OP_GETATTR = 9,
	191	OP_GETFH = 10,
	192	OP_LINK = 11,
	193	OP_LOCK = 12,
	194	OP_LOCKT = 13,
	195	OP_LOCKU = 14,
	196	OP_LOOKUP = 15,
	197	OP_LOOKUPP = 16,
	198	OP_NVERIFY = 17,
	199	OP_OPEN = 18,
	200	OP_OPENATTR = 19,
	201	OP_OPEN_CONFIRM = 20,
	202	OP_OPEN_DOWNGRADE = 21,
	203	OP_PUTFH = 22,
	204	OP_PUTPUBFH = 23,
	205	OP_PUTROOTFH = 24,
	206	OP_READ = 25,
	207	OP_READDIR = 26,
	208	OP_READLINK = 27,
	209	OP_REMOVE = 28,
	210	OP_RENAME = 29,
	211	OP_RENEW = 30,
	212	OP_RESTOREFH = 31,
	213	OP_SAVEFH = 32,
	214	OP_SECINFO = 33,
	215	OP_SETATTR = 34,
	216	OP_SETCLIENTID = 35,
	217	OP_SETCLIENTID_CONFIRM = 36,
	218	OP_VERIFY = 37,
	219	OP_WRITE = 38,
	220	OP_RELEASE_LOCKOWNER = 39,
18df1884 BH	221
	222	/* nfs41 */
	223	OP_BACKCHANNEL_CTL = 40,
	224	OP_BIND_CONN_TO_SESSION = 41,
	225	OP_EXCHANGE_ID = 42,
	226	OP_CREATE_SESSION = 43,
	227	OP_DESTROY_SESSION = 44,
	228	OP_FREE_STATEID = 45,
	229	OP_GET_DIR_DELEGATION = 46,
	230	OP_GETDEVICEINFO = 47,
	231	OP_GETDEVICELIST = 48,
	232	OP_LAYOUTCOMMIT = 49,
	233	OP_LAYOUTGET = 50,
	234	OP_LAYOUTRETURN = 51,
	235	OP_SECINFO_NO_NAME = 52,
	236	OP_SEQUENCE = 53,
	237	OP_SET_SSV = 54,
	238	OP_TEST_STATEID = 55,
	239	OP_WANT_DELEGATION = 56,
	240	OP_DESTROY_CLIENTID = 57,
	241	OP_RECLAIM_COMPLETE = 58,
	242
1da177e4 LT	243	OP_ILLEGAL = 10044,
	244	};
	245
e2b20950 SA	246	/*Defining first and last NFS4 operations implemented.
	247	Needs to be updated if more operations are defined in future.*/
	248
	249	#define FIRST_NFS4_OP OP_ACCESS
5a421ce3	250	#define LAST_NFS4_OP OP_RECLAIM_COMPLETE
e2b20950	251
1da177e4 LT	252	enum nfsstat4 {
	253	NFS4_OK = 0,
	254	NFS4ERR_PERM = 1,
	255	NFS4ERR_NOENT = 2,
	256	NFS4ERR_IO = 5,
	257	NFS4ERR_NXIO = 6,
	258	NFS4ERR_ACCESS = 13,
	259	NFS4ERR_EXIST = 17,
	260	NFS4ERR_XDEV = 18,
	261	/* Unused/reserved 19 */
	262	NFS4ERR_NOTDIR = 20,
	263	NFS4ERR_ISDIR = 21,
	264	NFS4ERR_INVAL = 22,
	265	NFS4ERR_FBIG = 27,
	266	NFS4ERR_NOSPC = 28,
	267	NFS4ERR_ROFS = 30,
	268	NFS4ERR_MLINK = 31,
	269	NFS4ERR_NAMETOOLONG = 63,
	270	NFS4ERR_NOTEMPTY = 66,
	271	NFS4ERR_DQUOT = 69,
	272	NFS4ERR_STALE = 70,
	273	NFS4ERR_BADHANDLE = 10001,
	274	NFS4ERR_BAD_COOKIE = 10003,
	275	NFS4ERR_NOTSUPP = 10004,
	276	NFS4ERR_TOOSMALL = 10005,
	277	NFS4ERR_SERVERFAULT = 10006,
	278	NFS4ERR_BADTYPE = 10007,
	279	NFS4ERR_DELAY = 10008,
	280	NFS4ERR_SAME = 10009,
	281	NFS4ERR_DENIED = 10010,
	282	NFS4ERR_EXPIRED = 10011,
	283	NFS4ERR_LOCKED = 10012,
	284	NFS4ERR_GRACE = 10013,
	285	NFS4ERR_FHEXPIRED = 10014,
	286	NFS4ERR_SHARE_DENIED = 10015,
	287	NFS4ERR_WRONGSEC = 10016,
	288	NFS4ERR_CLID_INUSE = 10017,
	289	NFS4ERR_RESOURCE = 10018,
	290	NFS4ERR_MOVED = 10019,
	291	NFS4ERR_NOFILEHANDLE = 10020,
	292	NFS4ERR_MINOR_VERS_MISMATCH = 10021,
	293	NFS4ERR_STALE_CLIENTID = 10022,
	294	NFS4ERR_STALE_STATEID = 10023,
	295	NFS4ERR_OLD_STATEID = 10024,
	296	NFS4ERR_BAD_STATEID = 10025,
	297	NFS4ERR_BAD_SEQID = 10026,
	298	NFS4ERR_NOT_SAME = 10027,
	299	NFS4ERR_LOCK_RANGE = 10028,
	300	NFS4ERR_SYMLINK = 10029,
	301	NFS4ERR_RESTOREFH = 10030,
	302	NFS4ERR_LEASE_MOVED = 10031,
	303	NFS4ERR_ATTRNOTSUPP = 10032,
	304	NFS4ERR_NO_GRACE = 10033,
	305	NFS4ERR_RECLAIM_BAD = 10034,
	306	NFS4ERR_RECLAIM_CONFLICT = 10035,
	307	NFS4ERR_BADXDR = 10036,
	308	NFS4ERR_LOCKS_HELD = 10037,
	309	NFS4ERR_OPENMODE = 10038,
	310	NFS4ERR_BADOWNER = 10039,
	311	NFS4ERR_BADCHAR = 10040,
	312	NFS4ERR_BADNAME = 10041,
	313	NFS4ERR_BAD_RANGE = 10042,
	314	NFS4ERR_LOCK_NOTSUPP = 10043,
	315	NFS4ERR_OP_ILLEGAL = 10044,
316	NFS4ERR_DEADLOCK = 10045,
317	NFS4ERR_FILE_OPEN = 10046,
318	NFS4ERR_ADMIN_REVOKED = 10047,
18df1884 BH	319	NFS4ERR_CB_PATH_DOWN = 10048,
	320
	321	/* nfs41 */
	322	NFS4ERR_BADIOMODE = 10049,
	323	NFS4ERR_BADLAYOUT = 10050,
	324	NFS4ERR_BAD_SESSION_DIGEST = 10051,
	325	NFS4ERR_BADSESSION = 10052,
	326	NFS4ERR_BADSLOT = 10053,
	327	NFS4ERR_COMPLETE_ALREADY = 10054,
	328	NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
	329	NFS4ERR_DELEG_ALREADY_WANTED = 10056,
	330	NFS4ERR_BACK_CHAN_BUSY = 10057, /* backchan reqs outstanding */
	331	NFS4ERR_LAYOUTTRYLATER = 10058,
	332	NFS4ERR_LAYOUTUNAVAILABLE = 10059,
	333	NFS4ERR_NOMATCHING_LAYOUT = 10060,
	334	NFS4ERR_RECALLCONFLICT = 10061,
	335	NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
	336	NFS4ERR_SEQ_MISORDERED = 10063, /* unexpected seq.id in req */
	337	NFS4ERR_SEQUENCE_POS = 10064, /* [CB_]SEQ. op not 1st op */
	338	NFS4ERR_REQ_TOO_BIG = 10065, /* request too big */
	339	NFS4ERR_REP_TOO_BIG = 10066, /* reply too big */
	340	NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067, /* rep. not all cached */
	341	NFS4ERR_RETRY_UNCACHED_REP = 10068, /* retry & rep. uncached */
	342	NFS4ERR_UNSAFE_COMPOUND = 10069, /* retry/recovery too hard */
	343	NFS4ERR_TOO_MANY_OPS = 10070, /* too many ops in [CB_]COMP */
	344	NFS4ERR_OP_NOT_IN_SESSION = 10071, /* op needs [CB_]SEQ. op */
	345	NFS4ERR_HASH_ALG_UNSUPP = 10072, /* hash alg. not supp. */
	346	/* Error 10073 is unused. */
	347	NFS4ERR_CLIENTID_BUSY = 10074, /* clientid has state */
	348	NFS4ERR_PNFS_IO_HOLE = 10075, /* IO to _SPARSE file hole */
	349	NFS4ERR_SEQ_FALSE_RETRY = 10076, /* retry not origional */
	350	NFS4ERR_BAD_HIGH_SLOT = 10077, /* sequence arg bad */
	351	NFS4ERR_DEADSESSION = 10078, /* persistent session dead */
	352	NFS4ERR_ENCR_ALG_UNSUPP = 10079, /* SSV alg mismatch */
	353	NFS4ERR_PNFS_NO_LAYOUT = 10080, /* direct I/O with no layout */
	354	NFS4ERR_NOT_ONLY_OP = 10081, /* bad compound */
	355	NFS4ERR_WRONG_CRED = 10082, /* permissions:state change */
	356	NFS4ERR_WRONG_TYPE = 10083, /* current operation mismatch */
	357	NFS4ERR_DIRDELEG_UNAVAIL = 10084, /* no directory delegation */
	358	NFS4ERR_REJECT_DELEG = 10085, /* on callback */
	359	NFS4ERR_RETURNCONFLICT = 10086, /* outstanding layoutreturn */
	360	NFS4ERR_DELEG_REVOKED = 10087, /* deleg./layout revoked */
1da177e4 LT	361	};
	362
	363	/*
	364	* Note: NF4BAD is not actually part of the protocol; it is just used
	365	* internally by nfsd.
	366	*/
	367	enum nfs_ftype4 {
	368	NF4BAD = 0,
	369	NF4REG = 1, /* Regular File */
	370	NF4DIR = 2, /* Directory */
	371	NF4BLK = 3, /* Special File - block device */
	372	NF4CHR = 4, /* Special File - character device */
	373	NF4LNK = 5, /* Symbolic Link */
	374	NF4SOCK = 6, /* Special File - socket */
	375	NF4FIFO = 7, /* Special File - fifo */
	376	NF4ATTRDIR = 8, /* Attribute Directory */
	377	NF4NAMEDATTR = 9 /* Named Attribute */
	378	};
	379
	380	enum open_claim_type4 {
	381	NFS4_OPEN_CLAIM_NULL = 0,
	382	NFS4_OPEN_CLAIM_PREVIOUS = 1,
	383	NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
	384	NFS4_OPEN_CLAIM_DELEGATE_PREV = 3
	385	};
	386
	387	enum opentype4 {
	388	NFS4_OPEN_NOCREATE = 0,
	389	NFS4_OPEN_CREATE = 1
	390	};
	391
	392	enum createmode4 {
	393	NFS4_CREATE_UNCHECKED = 0,
	394	NFS4_CREATE_GUARDED = 1,
79fb54ab BH	395	NFS4_CREATE_EXCLUSIVE = 2,
	396	/*
	397	* New to NFSv4.1. If session is persistent,
	398	* GUARDED4 MUST be used. Otherwise, use
	399	* EXCLUSIVE4_1 instead of EXCLUSIVE4.
	400	*/
	401	NFS4_CREATE_EXCLUSIVE4_1 = 3
1da177e4 LT	402	};
	403
	404	enum limit_by4 {
	405	NFS4_LIMIT_SIZE = 1,
	406	NFS4_LIMIT_BLOCKS = 2
	407	};
	408
	409	enum open_delegation_type4 {
	410	NFS4_OPEN_DELEGATE_NONE = 0,
	411	NFS4_OPEN_DELEGATE_READ = 1,
	412	NFS4_OPEN_DELEGATE_WRITE = 2
	413	};
	414
	415	enum lock_type4 {
	416	NFS4_UNLOCK_LT = 0,
	417	NFS4_READ_LT = 1,
	418	NFS4_WRITE_LT = 2,
	419	NFS4_READW_LT = 3,
	420	NFS4_WRITEW_LT = 4
	421	};
	422
	423
	424	/* Mandatory Attributes */
	425	#define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0)
	426	#define FATTR4_WORD0_TYPE (1UL << 1)
	427	#define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2)
	428	#define FATTR4_WORD0_CHANGE (1UL << 3)
	429	#define FATTR4_WORD0_SIZE (1UL << 4)
	430	#define FATTR4_WORD0_LINK_SUPPORT (1UL << 5)
	431	#define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6)
	432	#define FATTR4_WORD0_NAMED_ATTR (1UL << 7)
	433	#define FATTR4_WORD0_FSID (1UL << 8)
	434	#define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9)
	435	#define FATTR4_WORD0_LEASE_TIME (1UL << 10)
	436	#define FATTR4_WORD0_RDATTR_ERROR (1UL << 11)
8c18f205 BH	437	/* Mandatory in NFSv4.1 */
8c18f205 BH	438	#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
1da177e4 LT	439
	440	/* Recommended Attributes */
	441	#define FATTR4_WORD0_ACL (1UL << 12)
	442	#define FATTR4_WORD0_ACLSUPPORT (1UL << 13)
	443	#define FATTR4_WORD0_ARCHIVE (1UL << 14)
	444	#define FATTR4_WORD0_CANSETTIME (1UL << 15)
	445	#define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16)
	446	#define FATTR4_WORD0_CASE_PRESERVING (1UL << 17)
	447	#define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18)
	448	#define FATTR4_WORD0_FILEHANDLE (1UL << 19)
	449	#define FATTR4_WORD0_FILEID (1UL << 20)
	450	#define FATTR4_WORD0_FILES_AVAIL (1UL << 21)
	451	#define FATTR4_WORD0_FILES_FREE (1UL << 22)
	452	#define FATTR4_WORD0_FILES_TOTAL (1UL << 23)
	453	#define FATTR4_WORD0_FS_LOCATIONS (1UL << 24)
	454	#define FATTR4_WORD0_HIDDEN (1UL << 25)
	455	#define FATTR4_WORD0_HOMOGENEOUS (1UL << 26)
	456	#define FATTR4_WORD0_MAXFILESIZE (1UL << 27)
	457	#define FATTR4_WORD0_MAXLINK (1UL << 28)
	458	#define FATTR4_WORD0_MAXNAME (1UL << 29)
	459	#define FATTR4_WORD0_MAXREAD (1UL << 30)
	460	#define FATTR4_WORD0_MAXWRITE (1UL << 31)
	461	#define FATTR4_WORD1_MIMETYPE (1UL << 0)
	462	#define FATTR4_WORD1_MODE (1UL << 1)
	463	#define FATTR4_WORD1_NO_TRUNC (1UL << 2)
	464	#define FATTR4_WORD1_NUMLINKS (1UL << 3)
	465	#define FATTR4_WORD1_OWNER (1UL << 4)
	466	#define FATTR4_WORD1_OWNER_GROUP (1UL << 5)
	467	#define FATTR4_WORD1_QUOTA_HARD (1UL << 6)
	468	#define FATTR4_WORD1_QUOTA_SOFT (1UL << 7)
	469	#define FATTR4_WORD1_QUOTA_USED (1UL << 8)
	470	#define FATTR4_WORD1_RAWDEV (1UL << 9)
	471	#define FATTR4_WORD1_SPACE_AVAIL (1UL << 10)
	472	#define FATTR4_WORD1_SPACE_FREE (1UL << 11)
	473	#define FATTR4_WORD1_SPACE_TOTAL (1UL << 12)
	474	#define FATTR4_WORD1_SPACE_USED (1UL << 13)
	475	#define FATTR4_WORD1_SYSTEM (1UL << 14)
	476	#define FATTR4_WORD1_TIME_ACCESS (1UL << 15)
	477	#define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16)
	478	#define FATTR4_WORD1_TIME_BACKUP (1UL << 17)
	479	#define FATTR4_WORD1_TIME_CREATE (1UL << 18)
	480	#define FATTR4_WORD1_TIME_DELTA (1UL << 19)
	481	#define FATTR4_WORD1_TIME_METADATA (1UL << 20)
	482	#define FATTR4_WORD1_TIME_MODIFY (1UL << 21)
	483	#define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22)
	484	#define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
c772567d DH	485	#define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30)
c772567d DH	486	#define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
1da177e4 LT	487
	488	#define NFSPROC4_NULL 0
	489	#define NFSPROC4_COMPOUND 1
764302cc	490	#define NFS4_VERSION 4
1da177e4	491	#define NFS4_MINOR_VERSION 0
44549dff MS	492
	493	#if defined(CONFIG_NFS_V4_1)
	494	#define NFS4_MAX_MINOR_VERSION 1
	495	#else
	496	#define NFS4_MAX_MINOR_VERSION 0
	497	#endif /* CONFIG_NFS_V4_1 */
	498
1da177e4 LT	499	#define NFS4_DEBUG 1
1da177e4 LT	500
1da177e4 LT	501	/* Index of predefined Linux client operations */
	502
	503	enum {
	504	NFSPROC4_CLNT_NULL = 0, /* Unused */
	505	NFSPROC4_CLNT_READ,
	506	NFSPROC4_CLNT_WRITE,
	507	NFSPROC4_CLNT_COMMIT,
	508	NFSPROC4_CLNT_OPEN,
	509	NFSPROC4_CLNT_OPEN_CONFIRM,
	510	NFSPROC4_CLNT_OPEN_NOATTR,
	511	NFSPROC4_CLNT_OPEN_DOWNGRADE,
	512	NFSPROC4_CLNT_CLOSE,
	513	NFSPROC4_CLNT_SETATTR,
	514	NFSPROC4_CLNT_FSINFO,
	515	NFSPROC4_CLNT_RENEW,
	516	NFSPROC4_CLNT_SETCLIENTID,
	517	NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
	518	NFSPROC4_CLNT_LOCK,
	519	NFSPROC4_CLNT_LOCKT,
	520	NFSPROC4_CLNT_LOCKU,
	521	NFSPROC4_CLNT_ACCESS,
	522	NFSPROC4_CLNT_GETATTR,
	523	NFSPROC4_CLNT_LOOKUP,
	524	NFSPROC4_CLNT_LOOKUP_ROOT,
	525	NFSPROC4_CLNT_REMOVE,
	526	NFSPROC4_CLNT_RENAME,
	527	NFSPROC4_CLNT_LINK,
	528	NFSPROC4_CLNT_SYMLINK,
	529	NFSPROC4_CLNT_CREATE,
	530	NFSPROC4_CLNT_PATHCONF,
	531	NFSPROC4_CLNT_STATFS,
	532	NFSPROC4_CLNT_READLINK,
	533	NFSPROC4_CLNT_READDIR,
	534	NFSPROC4_CLNT_SERVER_CAPS,
	535	NFSPROC4_CLNT_DELEGRETURN,
029d105e	536	NFSPROC4_CLNT_GETACL,
23ec6965	537	NFSPROC4_CLNT_SETACL,
683b57b4	538	NFSPROC4_CLNT_FS_LOCATIONS,
d3c7b7cc	539	NFSPROC4_CLNT_RELEASE_LOCKOWNER,
18df1884 BH	540
	541	/* nfs41 */
	542	NFSPROC4_CLNT_EXCHANGE_ID,
	543	NFSPROC4_CLNT_CREATE_SESSION,
	544	NFSPROC4_CLNT_DESTROY_SESSION,
	545	NFSPROC4_CLNT_SEQUENCE,
	546	NFSPROC4_CLNT_GET_LEASE_TIME,
18019753	547	NFSPROC4_CLNT_RECLAIM_COMPLETE,
18df1884 BH	548	};
	549
	550	/* nfs41 types */
	551	struct nfs4_sessionid {
	552	unsigned char data[NFS4_MAX_SESSIONID_LEN];
	553	};
	554
	555	/* Create Session Flags */
	556	#define SESSION4_PERSIST 0x001
	557	#define SESSION4_BACK_CHAN 0x002
	558	#define SESSION4_RDMA 0x004
	559
	560	enum state_protect_how4 {
	561	SP4_NONE = 0,
	562	SP4_MACH_CRED = 1,
	563	SP4_SSV = 2
1da177e4 LT	564	};
1da177e4 LT	565
c772567d DH	566	enum pnfs_layouttype {
	567	LAYOUT_NFSV4_1_FILES = 1,
	568	LAYOUT_OSD2_OBJECTS = 2,
	569	LAYOUT_BLOCK_VOLUME = 3,
	570	};
	571
	572	/* used for both layout return and recall */
	573	enum pnfs_layoutreturn_type {
	574	RETURN_FILE = 1,
	575	RETURN_FSID = 2,
	576	RETURN_ALL = 3
	577	};
	578
	579	enum pnfs_iomode {
	580	IOMODE_READ = 1,
	581	IOMODE_RW = 2,
	582	IOMODE_ANY = 3,
	583	};
	584
	585	enum pnfs_notify_deviceid_type4 {
	586	NOTIFY_DEVICEID4_CHANGE = 1 << 1,
	587	NOTIFY_DEVICEID4_DELETE = 1 << 2,
	588	};
	589
	590	#define NFL4_UFLG_MASK 0x0000003F
	591	#define NFL4_UFLG_DENSE 0x00000001
	592	#define NFL4_UFLG_COMMIT_THRU_MDS 0x00000002
	593	#define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
	594
	595	/* Encoded in the loh_body field of type layouthint4 */
	596	enum filelayout_hint_care4 {
	597	NFLH4_CARE_DENSE = NFL4_UFLG_DENSE,
	598	NFLH4_CARE_COMMIT_THRU_MDS = NFL4_UFLG_COMMIT_THRU_MDS,
	599	NFLH4_CARE_STRIPE_UNIT_SIZE = 0x00000040,
	600	NFLH4_CARE_STRIPE_COUNT = 0x00000080
	601	};
	602
	603	#define NFS4_DEVICEID4_SIZE 16
	604
	605	struct nfs4_deviceid {
	606	char data[NFS4_DEVICEID4_SIZE];
	607	};
	608
1da177e4 LT	609	#endif
	610	#endif
	611
	612	/*
	613	* Local variables:
	614	* c-basic-offset: 8
	615	* End:
	616	*/