
      ˆl–ßi~”Je¶…8 �q¦î	•1hß¿0ÂÁ  +   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÀ„O�Ÿ_†I|¥�+ÄÃ ?÷     /* SPDX-License-Identifier: GPL-2.0 */
/*
 *  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>
#include <linux/sunrpc/msg_prot.h>

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

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[];
};

#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 nfs4_stateid_struct {
	union {
		char data[NFS4_STATEID_SIZE];
		struct {
			__be32 seqid;
			char other[NFS4_STATEID_OTHER_SIZE];
		} __attribute__ ((packed));
	};

	enum {
		NFS4_INVALID_STATEID_TYPE = 0,
		NFS4_SPECIAL_STATEID_TYPE,
		NFS4_OPEN_STATEID_TYPE,
		NFS4_LOCK_STATEID_TYPE,
		NFS4_DELEGATION_STATEID_TYPE,
		NFS4_LAYOUT_STATEID_TYPE,
		NFS4_PNFS_DS_STATEID_TYPE,
		NFS4_REVOKED_STATEID_TYPE,
		NFS4_FREED_STATEID_TYPE,
	} type;
};

typedef struct nfs4_stateid_struct 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_CLONE = 71,

	/* xattr support (RFC8276) */
	OP_GETXATTR                = 72,
	OP_SETXATTR                = 73,
	OP_LISTXATTRS              = 74,
	OP_REMOVEXATTR             = 75,

	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_NFS40_OP	OP_RELEASE_LOCKOWNER
#define LAST_NFS41_OP	OP_RECLAIM_COMPLETE
#define LAST_NFS42_OP	OP_REMOVEXATTR
#define LAST_NFS4_OP	LAST_NFS42_OP

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,
