[mirror_ubuntu-bionic-kernel.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/list.h>
#include <linux/uidgid.h>
#include <uapi/linux/nfs4.h>

struct nfs4_ace {
	uint32_t	type;
	uint32_t	flag;
	uint32_t	access_mask;
	int		whotype;
	union {
		kuid_t	who_uid;
		kgid_t	who_gid;
	};
};

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

#define NFS4_MAXLABELLEN	2048

struct nfs4_label {
	uint32_t	lfs;
	uint32_t	pi;
	u32		len;
	char	*label;
};

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

struct nfs_stateid4 {
	__be32 seqid;
	char other[NFS4_STATEID_OTHER_SIZE];
} __attribute__ ((packed));

typedef struct nfs_stateid4 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,

	/* nfs42 */
	OP_ALLOCATE = 59,
	OP_COPY = 60,
	OP_COPY_NOTIFY = 61,
	OP_DEALLOCATE = 62,
	OP_IO_ADVISE = 63,
	OP_LAYOUTERROR = 64,
	OP_LAYOUTSTATS = 65,
	OP_OFFLOAD_CANCEL = 66,
	OP_OFFLOAD_STATUS = 67,
	OP_READ_PLUS = 68,
	OP_SEEK = 69,
	OP_WRITE_SAME = 70,

	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_WRITE_SAME
#define LAST_NFS40_OP	OP_RELEASE_LOCKOWNER
#define LAST_NFS41_OP	OP_RECLAIM_COMPLETE
#define LAST_NFS42_OP	OP_WRITE_SAME

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 original */
	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 */

	/* nfs42 */
	NFS4ERR_PARTNER_NOTSUPP	= 10088,
	NFS4ERR_PARTNER_NO_AUTH	= 10089,
	NFS4ERR_UNION_NOTSUPP = 10090,
	NFS4ERR_OFFLOAD_DENIED = 10091,
	NFS4ERR_WRONG_LFS = 10092,
	NFS4ERR_BADLABEL = 10093,
	NFS4ERR_OFFLOAD_NO_REQS = 10094,
};

static inline bool seqid_mutating_err(u32 err)
{
	/* rfc 3530 section 8.1.5: */
	switch (err) {
	case NFS4ERR_STALE_CLIENTID:
	case NFS4ERR_STALE_STATEID:
	case NFS4ERR_BAD_STATEID:
	case NFS4ERR_BAD_SEQID:
	case NFS4ERR_BADXDR:
	case NFS4ERR_RESOURCE:
	case NFS4ERR_NOFILEHANDLE:
		return false;
	};
	return true;
}

/*
 * 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,
	NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
	NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
	NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
};

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,
	NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
};

enum why_no_delegation4 { /* new to v4.1 */
	WND4_NOT_WANTED = 0,
	WND4_CONTENTION = 1,
	WND4_RESOURCE = 2,
	WND4_NOT_SUPP_FTYPE = 3,
	WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
	WND4_NOT_SUPP_UPGRADE = 5,
	WND4_NOT_SUPP_DOWNGRADE = 6,
	WND4_CANCELLED = 7,
	WND4_IS_DIR = 8,
};

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 FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
#define FATTR4_WORD2_SECURITY_LABEL     (1UL << 16)

/* MDS threshold bitmap bits */
#define THRESHOLD_RD                    (1UL << 0)
#define THRESHOLD_WR                    (1UL << 1)
#define THRESHOLD_RD_IO                 (1UL << 2)
#define THRESHOLD_WR_IO                 (1UL << 3)

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

#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,
	NFSPROC4_CLNT_SECINFO,
	NFSPROC4_CLNT_FSID_PRESENT,

	/* 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,
	NFSPROC4_CLNT_LAYOUTGET,
	NFSPROC4_CLNT_GETDEVICEINFO,
	NFSPROC4_CLNT_LAYOUTCOMMIT,
	NFSPROC4_CLNT_LAYOUTRETURN,
	NFSPROC4_CLNT_SECINFO_NO_NAME,
	NFSPROC4_CLNT_TEST_STATEID,
	NFSPROC4_CLNT_FREE_STATEID,
	NFSPROC4_CLNT_GETDEVICELIST,
	NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
	NFSPROC4_CLNT_DESTROY_CLIENTID,

	/* nfs42 */
	NFSPROC4_CLNT_SEEK,
	NFSPROC4_CLNT_ALLOCATE,
	NFSPROC4_CLNT_DEALLOCATE,
};

/* 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

#define SESSION4_FLAG_MASK_A	0x007

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];
};

enum data_content4 {
	NFS4_CONTENT_DATA		= 0,
	NFS4_CONTENT_HOLE		= 1,
};

#endif
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	*/
1da177e4 LT	12	#ifndef _LINUX_NFS4_H
	13	#define _LINUX_NFS4_H
	14
997b7af2	15	#include <linux/list.h>
ab8e4aee	16	#include <linux/uidgid.h>
607ca46e	17	#include <uapi/linux/nfs4.h>
997b7af2	18
1da177e4 LT	19	struct nfs4_ace {
	20	uint32_t type;
	21	uint32_t flag;
	22	uint32_t access_mask;
	23	int whotype;
ab8e4aee EB	24	union {
	25	kuid_t who_uid;
	26	kgid_t who_gid;
	27	};
1da177e4 LT	28	};
	29
	30	struct nfs4_acl {
	31	uint32_t naces;
28e05dd8	32	struct nfs4_ace aces[0];
1da177e4 LT	33	};
1da177e4 LT	34
e058f70b SD	35	#define NFS4_MAXLABELLEN 2048
	36
	37	struct nfs4_label {
	38	uint32_t lfs;
	39	uint32_t pi;
	40	u32 len;
	41	char *label;
	42	};
	43
1da177e4	44	typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
94499252	45
2d2f24ad	46	struct nfs_stateid4 {
94499252 AB	47	__be32 seqid;
	48	char other[NFS4_STATEID_OTHER_SIZE];
	49	} __attribute__ ((packed));
	50
2d2f24ad	51	typedef struct nfs_stateid4 nfs4_stateid;
1da177e4 LT	52
	53	enum nfs_opnum4 {
	54	OP_ACCESS = 3,
	55	OP_CLOSE = 4,
	56	OP_COMMIT = 5,
	57	OP_CREATE = 6,
	58	OP_DELEGPURGE = 7,
	59	OP_DELEGRETURN = 8,
	60	OP_GETATTR = 9,
	61	OP_GETFH = 10,
	62	OP_LINK = 11,
	63	OP_LOCK = 12,
	64	OP_LOCKT = 13,
	65	OP_LOCKU = 14,
	66	OP_LOOKUP = 15,
	67	OP_LOOKUPP = 16,
	68	OP_NVERIFY = 17,
	69	OP_OPEN = 18,
	70	OP_OPENATTR = 19,
	71	OP_OPEN_CONFIRM = 20,
	72	OP_OPEN_DOWNGRADE = 21,
	73	OP_PUTFH = 22,
	74	OP_PUTPUBFH = 23,
	75	OP_PUTROOTFH = 24,
	76	OP_READ = 25,
	77	OP_READDIR = 26,
	78	OP_READLINK = 27,
	79	OP_REMOVE = 28,
	80	OP_RENAME = 29,
	81	OP_RENEW = 30,
	82	OP_RESTOREFH = 31,
	83	OP_SAVEFH = 32,
	84	OP_SECINFO = 33,
	85	OP_SETATTR = 34,
	86	OP_SETCLIENTID = 35,
	87	OP_SETCLIENTID_CONFIRM = 36,
	88	OP_VERIFY = 37,
	89	OP_WRITE = 38,
	90	OP_RELEASE_LOCKOWNER = 39,
18df1884 BH	91
	92	/* nfs41 */
	93	OP_BACKCHANNEL_CTL = 40,
	94	OP_BIND_CONN_TO_SESSION = 41,
	95	OP_EXCHANGE_ID = 42,
	96	OP_CREATE_SESSION = 43,
	97	OP_DESTROY_SESSION = 44,
	98	OP_FREE_STATEID = 45,
	99	OP_GET_DIR_DELEGATION = 46,
	100	OP_GETDEVICEINFO = 47,
	101	OP_GETDEVICELIST = 48,
	102	OP_LAYOUTCOMMIT = 49,
	103	OP_LAYOUTGET = 50,
	104	OP_LAYOUTRETURN = 51,
	105	OP_SECINFO_NO_NAME = 52,
	106	OP_SEQUENCE = 53,
	107	OP_SET_SSV = 54,
	108	OP_TEST_STATEID = 55,
	109	OP_WANT_DELEGATION = 56,
	110	OP_DESTROY_CLIENTID = 57,
	111	OP_RECLAIM_COMPLETE = 58,
	112
87a15a80 AS	113	/* nfs42 */
	114	OP_ALLOCATE = 59,
	115	OP_COPY = 60,
	116	OP_COPY_NOTIFY = 61,
	117	OP_DEALLOCATE = 62,
	118	OP_IO_ADVISE = 63,
	119	OP_LAYOUTERROR = 64,
	120	OP_LAYOUTSTATS = 65,
	121	OP_OFFLOAD_CANCEL = 66,
	122	OP_OFFLOAD_STATUS = 67,
	123	OP_READ_PLUS = 68,
	124	OP_SEEK = 69,
	125	OP_WRITE_SAME = 70,
	126
1da177e4 LT	127	OP_ILLEGAL = 10044,
	128	};
	129
e2b20950 SA	130	/*Defining first and last NFS4 operations implemented.
	131	Needs to be updated if more operations are defined in future.*/
	132
	133	#define FIRST_NFS4_OP OP_ACCESS
87a15a80	134	#define LAST_NFS4_OP OP_WRITE_SAME
8217d146 AS	135	#define LAST_NFS40_OP OP_RELEASE_LOCKOWNER
8217d146 AS	136	#define LAST_NFS41_OP OP_RECLAIM_COMPLETE
87a15a80	137	#define LAST_NFS42_OP OP_WRITE_SAME
e2b20950	138
1da177e4 LT	139	enum nfsstat4 {
	140	NFS4_OK = 0,
	141	NFS4ERR_PERM = 1,
	142	NFS4ERR_NOENT = 2,
	143	NFS4ERR_IO = 5,
	144	NFS4ERR_NXIO = 6,
	145	NFS4ERR_ACCESS = 13,
	146	NFS4ERR_EXIST = 17,
	147	NFS4ERR_XDEV = 18,
	148	/* Unused/reserved 19 */
	149	NFS4ERR_NOTDIR = 20,
	150	NFS4ERR_ISDIR = 21,
	151	NFS4ERR_INVAL = 22,
	152	NFS4ERR_FBIG = 27,
	153	NFS4ERR_NOSPC = 28,
	154	NFS4ERR_ROFS = 30,
	155	NFS4ERR_MLINK = 31,
	156	NFS4ERR_NAMETOOLONG = 63,
	157	NFS4ERR_NOTEMPTY = 66,
	158	NFS4ERR_DQUOT = 69,
	159	NFS4ERR_STALE = 70,
	160	NFS4ERR_BADHANDLE = 10001,
	161	NFS4ERR_BAD_COOKIE = 10003,
	162	NFS4ERR_NOTSUPP = 10004,
	163	NFS4ERR_TOOSMALL = 10005,
	164	NFS4ERR_SERVERFAULT = 10006,
	165	NFS4ERR_BADTYPE = 10007,
	166	NFS4ERR_DELAY = 10008,
	167	NFS4ERR_SAME = 10009,
	168	NFS4ERR_DENIED = 10010,
	169	NFS4ERR_EXPIRED = 10011,
	170	NFS4ERR_LOCKED = 10012,
	171	NFS4ERR_GRACE = 10013,
	172	NFS4ERR_FHEXPIRED = 10014,
	173	NFS4ERR_SHARE_DENIED = 10015,
	174	NFS4ERR_WRONGSEC = 10016,
	175	NFS4ERR_CLID_INUSE = 10017,
	176	NFS4ERR_RESOURCE = 10018,
	177	NFS4ERR_MOVED = 10019,
	178	NFS4ERR_NOFILEHANDLE = 10020,
	179	NFS4ERR_MINOR_VERS_MISMATCH = 10021,
	180	NFS4ERR_STALE_CLIENTID = 10022,
	181	NFS4ERR_STALE_STATEID = 10023,
	182	NFS4ERR_OLD_STATEID = 10024,
	183	NFS4ERR_BAD_STATEID = 10025,
	184	NFS4ERR_BAD_SEQID = 10026,
	185	NFS4ERR_NOT_SAME = 10027,
	186	NFS4ERR_LOCK_RANGE = 10028,
	187	NFS4ERR_SYMLINK = 10029,
	188	NFS4ERR_RESTOREFH = 10030,
	189	NFS4ERR_LEASE_MOVED = 10031,
	190	NFS4ERR_ATTRNOTSUPP = 10032,
	191	NFS4ERR_NO_GRACE = 10033,
	192	NFS4ERR_RECLAIM_BAD = 10034,
	193	NFS4ERR_RECLAIM_CONFLICT = 10035,
	194	NFS4ERR_BADXDR = 10036,
	195	NFS4ERR_LOCKS_HELD = 10037,
	196	NFS4ERR_OPENMODE = 10038,
	197	NFS4ERR_BADOWNER = 10039,
	198	NFS4ERR_BADCHAR = 10040,
	199	NFS4ERR_BADNAME = 10041,
	200	NFS4ERR_BAD_RANGE = 10042,
	201	NFS4ERR_LOCK_NOTSUPP = 10043,
	202	NFS4ERR_OP_ILLEGAL = 10044,
203	NFS4ERR_DEADLOCK = 10045,
204	NFS4ERR_FILE_OPEN = 10046,
205	NFS4ERR_ADMIN_REVOKED = 10047,
18df1884 BH	206	NFS4ERR_CB_PATH_DOWN = 10048,
	207
	208	/* nfs41 */
	209	NFS4ERR_BADIOMODE = 10049,
	210	NFS4ERR_BADLAYOUT = 10050,
	211	NFS4ERR_BAD_SESSION_DIGEST = 10051,
	212	NFS4ERR_BADSESSION = 10052,
	213	NFS4ERR_BADSLOT = 10053,
	214	NFS4ERR_COMPLETE_ALREADY = 10054,
	215	NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
	216	NFS4ERR_DELEG_ALREADY_WANTED = 10056,
	217	NFS4ERR_BACK_CHAN_BUSY = 10057, /* backchan reqs outstanding */
	218	NFS4ERR_LAYOUTTRYLATER = 10058,
	219	NFS4ERR_LAYOUTUNAVAILABLE = 10059,
	220	NFS4ERR_NOMATCHING_LAYOUT = 10060,
	221	NFS4ERR_RECALLCONFLICT = 10061,
	222	NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
	223	NFS4ERR_SEQ_MISORDERED = 10063, /* unexpected seq.id in req */
	224	NFS4ERR_SEQUENCE_POS = 10064, /* [CB_]SEQ. op not 1st op */
	225	NFS4ERR_REQ_TOO_BIG = 10065, /* request too big */
	226	NFS4ERR_REP_TOO_BIG = 10066, /* reply too big */
	227	NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067, /* rep. not all cached */
	228	NFS4ERR_RETRY_UNCACHED_REP = 10068, /* retry & rep. uncached */
	229	NFS4ERR_UNSAFE_COMPOUND = 10069, /* retry/recovery too hard */
	230	NFS4ERR_TOO_MANY_OPS = 10070, /* too many ops in [CB_]COMP */
	231	NFS4ERR_OP_NOT_IN_SESSION = 10071, /* op needs [CB_]SEQ. op */
	232	NFS4ERR_HASH_ALG_UNSUPP = 10072, /* hash alg. not supp. */
	233	/* Error 10073 is unused. */
	234	NFS4ERR_CLIENTID_BUSY = 10074, /* clientid has state */
	235	NFS4ERR_PNFS_IO_HOLE = 10075, /* IO to _SPARSE file hole */
25985edc	236	NFS4ERR_SEQ_FALSE_RETRY = 10076, /* retry not original */
18df1884 BH	237	NFS4ERR_BAD_HIGH_SLOT = 10077, /* sequence arg bad */
	238	NFS4ERR_DEADSESSION = 10078, /* persistent session dead */
	239	NFS4ERR_ENCR_ALG_UNSUPP = 10079, /* SSV alg mismatch */
	240	NFS4ERR_PNFS_NO_LAYOUT = 10080, /* direct I/O with no layout */
	241	NFS4ERR_NOT_ONLY_OP = 10081, /* bad compound */
	242	NFS4ERR_WRONG_CRED = 10082, /* permissions:state change */
	243	NFS4ERR_WRONG_TYPE = 10083, /* current operation mismatch */
	244	NFS4ERR_DIRDELEG_UNAVAIL = 10084, /* no directory delegation */
	245	NFS4ERR_REJECT_DELEG = 10085, /* on callback */
	246	NFS4ERR_RETURNCONFLICT = 10086, /* outstanding layoutreturn */
	247	NFS4ERR_DELEG_REVOKED = 10087, /* deleg./layout revoked */
4488cc96 SD	248
	249	/* nfs42 */
	250	NFS4ERR_PARTNER_NOTSUPP = 10088,
	251	NFS4ERR_PARTNER_NO_AUTH = 10089,
2b8941b9	252	NFS4ERR_UNION_NOTSUPP = 10090,
4488cc96 SD	253	NFS4ERR_OFFLOAD_DENIED = 10091,
	254	NFS4ERR_WRONG_LFS = 10092,
	255	NFS4ERR_BADLABEL = 10093,
2b8941b9	256	NFS4ERR_OFFLOAD_NO_REQS = 10094,
1da177e4 LT	257	};
1da177e4 LT	258
a9004abc BF	259	static inline bool seqid_mutating_err(u32 err)
	260	{
	261	/* rfc 3530 section 8.1.5: */
	262	switch (err) {
	263	case NFS4ERR_STALE_CLIENTID:
	264	case NFS4ERR_STALE_STATEID:
	265	case NFS4ERR_BAD_STATEID:
	266	case NFS4ERR_BAD_SEQID:
	267	case NFS4ERR_BADXDR:
	268	case NFS4ERR_RESOURCE:
	269	case NFS4ERR_NOFILEHANDLE:
	270	return false;
	271	};
	272	return true;
	273	}
	274
1da177e4 LT	275	/*
	276	* Note: NF4BAD is not actually part of the protocol; it is just used
	277	* internally by nfsd.
	278	*/
	279	enum nfs_ftype4 {
	280	NF4BAD = 0,
	281	NF4REG = 1, /* Regular File */
	282	NF4DIR = 2, /* Directory */
	283	NF4BLK = 3, /* Special File - block device */
	284	NF4CHR = 4, /* Special File - character device */
	285	NF4LNK = 5, /* Symbolic Link */
	286	NF4SOCK = 6, /* Special File - socket */
	287	NF4FIFO = 7, /* Special File - fifo */
	288	NF4ATTRDIR = 8, /* Attribute Directory */
	289	NF4NAMEDATTR = 9 /* Named Attribute */
	290	};
	291
	292	enum open_claim_type4 {
	293	NFS4_OPEN_CLAIM_NULL = 0,
	294	NFS4_OPEN_CLAIM_PREVIOUS = 1,
	295	NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
8b289b2c BF	296	NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
	297	NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
	298	NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
	299	NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
1da177e4 LT	300	};
	301
	302	enum opentype4 {
	303	NFS4_OPEN_NOCREATE = 0,
	304	NFS4_OPEN_CREATE = 1
	305	};
	306
	307	enum createmode4 {
	308	NFS4_CREATE_UNCHECKED = 0,
	309	NFS4_CREATE_GUARDED = 1,
79fb54ab BH	310	NFS4_CREATE_EXCLUSIVE = 2,
	311	/*
	312	* New to NFSv4.1. If session is persistent,
	313	* GUARDED4 MUST be used. Otherwise, use
	314	* EXCLUSIVE4_1 instead of EXCLUSIVE4.
	315	*/
	316	NFS4_CREATE_EXCLUSIVE4_1 = 3
1da177e4 LT	317	};
	318
	319	enum limit_by4 {
	320	NFS4_LIMIT_SIZE = 1,
	321	NFS4_LIMIT_BLOCKS = 2
	322	};
	323
	324	enum open_delegation_type4 {
	325	NFS4_OPEN_DELEGATE_NONE = 0,
	326	NFS4_OPEN_DELEGATE_READ = 1,
d24433cd BH	327	NFS4_OPEN_DELEGATE_WRITE = 2,
	328	NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
	329	};
	330
	331	enum why_no_delegation4 { /* new to v4.1 */
	332	WND4_NOT_WANTED = 0,
	333	WND4_CONTENTION = 1,
	334	WND4_RESOURCE = 2,
	335	WND4_NOT_SUPP_FTYPE = 3,
	336	WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
	337	WND4_NOT_SUPP_UPGRADE = 5,
	338	WND4_NOT_SUPP_DOWNGRADE = 6,
	339	WND4_CANCELLED = 7,
	340	WND4_IS_DIR = 8,
1da177e4 LT	341	};
	342
	343	enum lock_type4 {
	344	NFS4_UNLOCK_LT = 0,
	345	NFS4_READ_LT = 1,
	346	NFS4_WRITE_LT = 2,
	347	NFS4_READW_LT = 3,
	348	NFS4_WRITEW_LT = 4
	349	};
	350
	351
	352	/* Mandatory Attributes */
	353	#define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0)
	354	#define FATTR4_WORD0_TYPE (1UL << 1)
	355	#define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2)
	356	#define FATTR4_WORD0_CHANGE (1UL << 3)
	357	#define FATTR4_WORD0_SIZE (1UL << 4)
	358	#define FATTR4_WORD0_LINK_SUPPORT (1UL << 5)
	359	#define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6)
	360	#define FATTR4_WORD0_NAMED_ATTR (1UL << 7)
	361	#define FATTR4_WORD0_FSID (1UL << 8)
	362	#define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9)
	363	#define FATTR4_WORD0_LEASE_TIME (1UL << 10)
	364	#define FATTR4_WORD0_RDATTR_ERROR (1UL << 11)
8c18f205 BH	365	/* Mandatory in NFSv4.1 */
8c18f205 BH	366	#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
1da177e4 LT	367
	368	/* Recommended Attributes */
	369	#define FATTR4_WORD0_ACL (1UL << 12)
	370	#define FATTR4_WORD0_ACLSUPPORT (1UL << 13)
	371	#define FATTR4_WORD0_ARCHIVE (1UL << 14)
	372	#define FATTR4_WORD0_CANSETTIME (1UL << 15)
	373	#define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16)
	374	#define FATTR4_WORD0_CASE_PRESERVING (1UL << 17)
	375	#define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18)
	376	#define FATTR4_WORD0_FILEHANDLE (1UL << 19)
	377	#define FATTR4_WORD0_FILEID (1UL << 20)
	378	#define FATTR4_WORD0_FILES_AVAIL (1UL << 21)
	379	#define FATTR4_WORD0_FILES_FREE (1UL << 22)
	380	#define FATTR4_WORD0_FILES_TOTAL (1UL << 23)
	381	#define FATTR4_WORD0_FS_LOCATIONS (1UL << 24)
	382	#define FATTR4_WORD0_HIDDEN (1UL << 25)
	383	#define FATTR4_WORD0_HOMOGENEOUS (1UL << 26)
	384	#define FATTR4_WORD0_MAXFILESIZE (1UL << 27)
	385	#define FATTR4_WORD0_MAXLINK (1UL << 28)
	386	#define FATTR4_WORD0_MAXNAME (1UL << 29)
	387	#define FATTR4_WORD0_MAXREAD (1UL << 30)
	388	#define FATTR4_WORD0_MAXWRITE (1UL << 31)
	389	#define FATTR4_WORD1_MIMETYPE (1UL << 0)
	390	#define FATTR4_WORD1_MODE (1UL << 1)
	391	#define FATTR4_WORD1_NO_TRUNC (1UL << 2)
	392	#define FATTR4_WORD1_NUMLINKS (1UL << 3)
	393	#define FATTR4_WORD1_OWNER (1UL << 4)
	394	#define FATTR4_WORD1_OWNER_GROUP (1UL << 5)
	395	#define FATTR4_WORD1_QUOTA_HARD (1UL << 6)
	396	#define FATTR4_WORD1_QUOTA_SOFT (1UL << 7)
	397	#define FATTR4_WORD1_QUOTA_USED (1UL << 8)
	398	#define FATTR4_WORD1_RAWDEV (1UL << 9)
	399	#define FATTR4_WORD1_SPACE_AVAIL (1UL << 10)
	400	#define FATTR4_WORD1_SPACE_FREE (1UL << 11)
	401	#define FATTR4_WORD1_SPACE_TOTAL (1UL << 12)
	402	#define FATTR4_WORD1_SPACE_USED (1UL << 13)
	403	#define FATTR4_WORD1_SYSTEM (1UL << 14)
	404	#define FATTR4_WORD1_TIME_ACCESS (1UL << 15)
	405	#define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16)
	406	#define FATTR4_WORD1_TIME_BACKUP (1UL << 17)
	407	#define FATTR4_WORD1_TIME_CREATE (1UL << 18)
	408	#define FATTR4_WORD1_TIME_DELTA (1UL << 19)
	409	#define FATTR4_WORD1_TIME_METADATA (1UL << 20)
	410	#define FATTR4_WORD1_TIME_MODIFY (1UL << 21)
	411	#define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22)
	412	#define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
c772567d DH	413	#define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30)
c772567d DH	414	#define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
88034c3d	415	#define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4)
f3f5a0f8	416	#define FATTR4_WORD2_SECURITY_LABEL (1UL << 16)
88034c3d AA	417
	418	/* MDS threshold bitmap bits */
	419	#define THRESHOLD_RD (1UL << 0)
	420	#define THRESHOLD_WR (1UL << 1)
	421	#define THRESHOLD_RD_IO (1UL << 2)
	422	#define THRESHOLD_WR_IO (1UL << 3)
1da177e4 LT	423
	424	#define NFSPROC4_NULL 0
	425	#define NFSPROC4_COMPOUND 1
764302cc	426	#define NFS4_VERSION 4
1da177e4	427	#define NFS4_MINOR_VERSION 0
44549dff	428
1da177e4 LT	429	#define NFS4_DEBUG 1
1da177e4 LT	430
1da177e4 LT	431	/* Index of predefined Linux client operations */
	432
	433	enum {
	434	NFSPROC4_CLNT_NULL = 0, /* Unused */
	435	NFSPROC4_CLNT_READ,
	436	NFSPROC4_CLNT_WRITE,
	437	NFSPROC4_CLNT_COMMIT,
	438	NFSPROC4_CLNT_OPEN,
	439	NFSPROC4_CLNT_OPEN_CONFIRM,
	440	NFSPROC4_CLNT_OPEN_NOATTR,
	441	NFSPROC4_CLNT_OPEN_DOWNGRADE,
	442	NFSPROC4_CLNT_CLOSE,
	443	NFSPROC4_CLNT_SETATTR,
	444	NFSPROC4_CLNT_FSINFO,
	445	NFSPROC4_CLNT_RENEW,
	446	NFSPROC4_CLNT_SETCLIENTID,
	447	NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
	448	NFSPROC4_CLNT_LOCK,
	449	NFSPROC4_CLNT_LOCKT,
	450	NFSPROC4_CLNT_LOCKU,
	451	NFSPROC4_CLNT_ACCESS,
	452	NFSPROC4_CLNT_GETATTR,
	453	NFSPROC4_CLNT_LOOKUP,
	454	NFSPROC4_CLNT_LOOKUP_ROOT,
	455	NFSPROC4_CLNT_REMOVE,
	456	NFSPROC4_CLNT_RENAME,
	457	NFSPROC4_CLNT_LINK,
	458	NFSPROC4_CLNT_SYMLINK,
	459	NFSPROC4_CLNT_CREATE,
	460	NFSPROC4_CLNT_PATHCONF,
	461	NFSPROC4_CLNT_STATFS,
	462	NFSPROC4_CLNT_READLINK,
	463	NFSPROC4_CLNT_READDIR,
	464	NFSPROC4_CLNT_SERVER_CAPS,
	465	NFSPROC4_CLNT_DELEGRETURN,
029d105e	466	NFSPROC4_CLNT_GETACL,
23ec6965	467	NFSPROC4_CLNT_SETACL,
683b57b4	468	NFSPROC4_CLNT_FS_LOCATIONS,
d3c7b7cc	469	NFSPROC4_CLNT_RELEASE_LOCKOWNER,
5a5ea0d4	470	NFSPROC4_CLNT_SECINFO,
44c99933	471	NFSPROC4_CLNT_FSID_PRESENT,
18df1884 BH	472
	473	/* nfs41 */
	474	NFSPROC4_CLNT_EXCHANGE_ID,
	475	NFSPROC4_CLNT_CREATE_SESSION,
	476	NFSPROC4_CLNT_DESTROY_SESSION,
	477	NFSPROC4_CLNT_SEQUENCE,
	478	NFSPROC4_CLNT_GET_LEASE_TIME,
18019753	479	NFSPROC4_CLNT_RECLAIM_COMPLETE,
b1f69b75 AA	480	NFSPROC4_CLNT_LAYOUTGET,
b1f69b75 AA	481	NFSPROC4_CLNT_GETDEVICEINFO,
863a3c6c	482	NFSPROC4_CLNT_LAYOUTCOMMIT,
cbe82603	483	NFSPROC4_CLNT_LAYOUTRETURN,
fca78d6d	484	NFSPROC4_CLNT_SECINFO_NO_NAME,
7d974794	485	NFSPROC4_CLNT_TEST_STATEID,
9aeda35f	486	NFSPROC4_CLNT_FREE_STATEID,
7f11d8d3	487	NFSPROC4_CLNT_GETDEVICELIST,
ad24ecfb	488	NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
66245539	489	NFSPROC4_CLNT_DESTROY_CLIENTID,
1c6dcbe5 AS	490
	491	/* nfs42 */
	492	NFSPROC4_CLNT_SEEK,
f4ac1674	493	NFSPROC4_CLNT_ALLOCATE,
624bd5b7	494	NFSPROC4_CLNT_DEALLOCATE,
18df1884 BH	495	};
	496
	497	/* nfs41 types */
	498	struct nfs4_sessionid {
	499	unsigned char data[NFS4_MAX_SESSIONID_LEN];
	500	};
	501
	502	/* Create Session Flags */
a62573dc MJ	503	#define SESSION4_PERSIST 0x001
	504	#define SESSION4_BACK_CHAN 0x002
	505	#define SESSION4_RDMA 0x004
	506
	507	#define SESSION4_FLAG_MASK_A 0x007
18df1884 BH	508
	509	enum state_protect_how4 {
	510	SP4_NONE = 0,
	511	SP4_MACH_CRED = 1,
	512	SP4_SSV = 2
1da177e4 LT	513	};
1da177e4 LT	514
c772567d DH	515	enum pnfs_layouttype {
	516	LAYOUT_NFSV4_1_FILES = 1,
	517	LAYOUT_OSD2_OBJECTS = 2,
	518	LAYOUT_BLOCK_VOLUME = 3,
	519	};
	520
	521	/* used for both layout return and recall */
	522	enum pnfs_layoutreturn_type {
	523	RETURN_FILE = 1,
	524	RETURN_FSID = 2,
	525	RETURN_ALL = 3
	526	};
	527
	528	enum pnfs_iomode {
	529	IOMODE_READ = 1,
	530	IOMODE_RW = 2,
	531	IOMODE_ANY = 3,
	532	};
	533
	534	enum pnfs_notify_deviceid_type4 {
	535	NOTIFY_DEVICEID4_CHANGE = 1 << 1,
	536	NOTIFY_DEVICEID4_DELETE = 1 << 2,
	537	};
	538
	539	#define NFL4_UFLG_MASK 0x0000003F
	540	#define NFL4_UFLG_DENSE 0x00000001
	541	#define NFL4_UFLG_COMMIT_THRU_MDS 0x00000002
	542	#define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
	543
	544	/* Encoded in the loh_body field of type layouthint4 */
	545	enum filelayout_hint_care4 {
	546	NFLH4_CARE_DENSE = NFL4_UFLG_DENSE,
	547	NFLH4_CARE_COMMIT_THRU_MDS = NFL4_UFLG_COMMIT_THRU_MDS,
	548	NFLH4_CARE_STRIPE_UNIT_SIZE = 0x00000040,
	549	NFLH4_CARE_STRIPE_COUNT = 0x00000080
	550	};
	551
	552	#define NFS4_DEVICEID4_SIZE 16
	553
	554	struct nfs4_deviceid {
	555	char data[NFS4_DEVICEID4_SIZE];
	556	};
	557
24bab491 AS	558	enum data_content4 {
	559	NFS4_CONTENT_DATA = 0,
	560	NFS4_CONTENT_HOLE = 1,
	561	};
	562
1da177e4	563	#endif