include/linux/nfsd/nfsd.h

   1 /*
   2  * linux/include/linux/nfsd/nfsd.h
   3  *
   4  * Hodge-podge collection of knfsd-related stuff.
   5  * I will sort this out later.
   6  *
   7  * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
   8  */
   9
  10 #ifndef LINUX_NFSD_NFSD_H
  11 #define LINUX_NFSD_NFSD_H
  12
  13 #include <linux/types.h>
  14 #include <linux/unistd.h>
  15 #include <linux/fs.h>
  16 #include <linux/posix_acl.h>
  17 #include <linux/mount.h>
  18
  19 #include <linux/nfsd/debug.h>
  20 #include <linux/nfsd/nfsfh.h>
  21 #include <linux/nfsd/export.h>
  22 #include <linux/nfsd/stats.h>
  23 /*
  24  * nfsd version
  25  */
  26 #define NFSD_SUPPORTED_MINOR_VERSION    1
  27
  28 /*
  29  * Flags for nfsd_permission
  30  */
  31 #define NFSD_MAY_NOP            0
  32 #define NFSD_MAY_EXEC           1 /* == MAY_EXEC */
  33 #define NFSD_MAY_WRITE          2 /* == MAY_WRITE */
  34 #define NFSD_MAY_READ           4 /* == MAY_READ */
  35 #define NFSD_MAY_SATTR          8
  36 #define NFSD_MAY_TRUNC          16
  37 #define NFSD_MAY_LOCK           32
  38 #define NFSD_MAY_OWNER_OVERRIDE 64
  39 #define NFSD_MAY_LOCAL_ACCESS   128 /* IRIX doing local access check on device special file*/
  40 #define NFSD_MAY_BYPASS_GSS_ON_ROOT 256
  41
  42 #define NFSD_MAY_CREATE         (NFSD_MAY_EXEC|NFSD_MAY_WRITE)
  43 #define NFSD_MAY_REMOVE         (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
  44
  45 /*
  46  * Callback function for readdir
  47  */
  48 struct readdir_cd {
  49         __be32                  err;    /* 0, nfserr, or nfserr_eof */
  50 };
  51 typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
  52
  53 extern struct svc_program       nfsd_program;
  54 extern struct svc_version       nfsd_version2, nfsd_version3,
  55                                 nfsd_version4;
  56 extern u32                      nfsd_supported_minorversion;
  57 extern struct mutex             nfsd_mutex;
  58 extern struct svc_serv          *nfsd_serv;
  59 extern spinlock_t               nfsd_drc_lock;
  60 extern unsigned int             nfsd_drc_max_mem;
  61 extern unsigned int             nfsd_drc_mem_used;
  62
  63 extern const struct seq_operations nfs_exports_op;
  64
  65 /*
  66  * Function prototypes.
  67  */
  68 int             nfsd_svc(unsigned short port, int nrservs);
  69 int             nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp);
  70
  71 int             nfsd_nrthreads(void);
  72 int             nfsd_nrpools(void);
  73 int             nfsd_get_nrthreads(int n, int *);
  74 int             nfsd_set_nrthreads(int n, int *);
  75
  76 /* nfsd/vfs.c */
  77 int             fh_lock_parent(struct svc_fh *, struct dentry *);
  78 int             nfsd_racache_init(int);
  79 void            nfsd_racache_shutdown(void);
  80 int             nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
  81                                 struct svc_export **expp);
  82 __be32          nfsd_lookup(struct svc_rqst *, struct svc_fh *,
  83                                 const char *, unsigned int, struct svc_fh *);
  84 __be32           nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *,
  85                                 const char *, unsigned int,
  86                                 struct svc_export **, struct dentry **);
  87 __be32          nfsd_setattr(struct svc_rqst *, struct svc_fh *,
  88                                 struct iattr *, int, time_t);
  89 #ifdef CONFIG_NFSD_V4
  90 __be32          nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
  91                     struct nfs4_acl *);
  92 int             nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **);
  93 #endif /* CONFIG_NFSD_V4 */
  94 __be32          nfsd_create(struct svc_rqst *, struct svc_fh *,
  95                                 char *name, int len, struct iattr *attrs,
  96                                 int type, dev_t rdev, struct svc_fh *res);
  97 #ifdef CONFIG_NFSD_V3
  98 __be32          nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
  99 __be32          nfsd_create_v3(struct svc_rqst *, struct svc_fh *,
 100                                 char *name, int len, struct iattr *attrs,
 101                                 struct svc_fh *res, int createmode,
 102                                 u32 *verifier, int *truncp, int *created);
 103 __be32          nfsd_commit(struct svc_rqst *, struct svc_fh *,
 104                                 loff_t, unsigned long);
 105 #endif /* CONFIG_NFSD_V3 */
 106 __be32          nfsd_open(struct svc_rqst *, struct svc_fh *, int,
 107                                 int, struct file **);
 108 void            nfsd_close(struct file *);
 109 __be32          nfsd_read(struct svc_rqst *, struct svc_fh *, struct file *,
 110                                 loff_t, struct kvec *, int, unsigned long *);
 111 __be32          nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
 112                                 loff_t, struct kvec *,int, unsigned long *, int *);
 113 __be32          nfsd_readlink(struct svc_rqst *, struct svc_fh *,
 114                                 char *, int *);
 115 __be32          nfsd_symlink(struct svc_rqst *, struct svc_fh *,
 116                                 char *name, int len, char *path, int plen,
 117                                 struct svc_fh *res, struct iattr *);
 118 __be32          nfsd_link(struct svc_rqst *, struct svc_fh *,
 119                                 char *, int, struct svc_fh *);
 120 __be32          nfsd_rename(struct svc_rqst *,
 121                                 struct svc_fh *, char *, int,
 122                                 struct svc_fh *, char *, int);
 123 __be32          nfsd_remove(struct svc_rqst *,
 124                                 struct svc_fh *, char *, int);
 125 __be32          nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
 126                                 char *name, int len);
 127 int             nfsd_truncate(struct svc_rqst *, struct svc_fh *,
 128                                 unsigned long size);
 129 __be32          nfsd_readdir(struct svc_rqst *, struct svc_fh *,
 130                              loff_t *, struct readdir_cd *, filldir_t);
 131 __be32          nfsd_statfs(struct svc_rqst *, struct svc_fh *,
 132                                 struct kstatfs *, int access);
 133
 134 int             nfsd_notify_change(struct inode *, struct iattr *);
 135 __be32          nfsd_permission(struct svc_rqst *, struct svc_export *,
 136                                 struct dentry *, int);
 137 int             nfsd_sync_dir(struct dentry *dp);
 138
 139 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
 140 #ifdef CONFIG_NFSD_V2_ACL
 141 extern struct svc_version nfsd_acl_version2;
 142 #else
 143 #define nfsd_acl_version2 NULL
 144 #endif
 145 #ifdef CONFIG_NFSD_V3_ACL
 146 extern struct svc_version nfsd_acl_version3;
 147 #else
 148 #define nfsd_acl_version3 NULL
 149 #endif
 150 struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
 151 int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
 152 #endif
 153
 154 enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
 155 int nfsd_vers(int vers, enum vers_op change);
 156 int nfsd_minorversion(u32 minorversion, enum vers_op change);
 157 void nfsd_reset_versions(void);
 158 int nfsd_create_serv(void);
 159
 160 extern int nfsd_max_blksize;
 161
 162 /*
 163  * NFSv4 State
 164  */
 165 #ifdef CONFIG_NFSD_V4
 166 extern unsigned int max_delegations;
 167 int nfs4_state_init(void);
 168 void nfsd4_free_slabs(void);
 169 int nfs4_state_start(void);
 170 void nfs4_state_shutdown(void);
 171 time_t nfs4_lease_time(void);
 172 void nfs4_reset_lease(time_t leasetime);
 173 int nfs4_reset_recoverydir(char *recdir);
 174 #else
 175 static inline int nfs4_state_init(void) { return 0; }
 176 static inline void nfsd4_free_slabs(void) { }
 177 static inline int nfs4_state_start(void) { return 0; }
 178 static inline void nfs4_state_shutdown(void) { }
 179 static inline time_t nfs4_lease_time(void) { return 0; }
 180 static inline void nfs4_reset_lease(time_t leasetime) { }
 181 static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
 182 #endif
 183
 184 /*
 185  * lockd binding
 186  */
 187 void            nfsd_lockd_init(void);
 188 void            nfsd_lockd_shutdown(void);
 189
 190
 191 /*
 192  * These macros provide pre-xdr'ed values for faster operation.
 193  */
 194 #define nfs_ok                  cpu_to_be32(NFS_OK)
 195 #define nfserr_perm             cpu_to_be32(NFSERR_PERM)
 196 #define nfserr_noent            cpu_to_be32(NFSERR_NOENT)
 197 #define nfserr_io               cpu_to_be32(NFSERR_IO)
 198 #define nfserr_nxio             cpu_to_be32(NFSERR_NXIO)
 199 #define nfserr_eagain           cpu_to_be32(NFSERR_EAGAIN)
 200 #define nfserr_acces            cpu_to_be32(NFSERR_ACCES)
 201 #define nfserr_exist            cpu_to_be32(NFSERR_EXIST)
 202 #define nfserr_xdev             cpu_to_be32(NFSERR_XDEV)
 203 #define nfserr_nodev            cpu_to_be32(NFSERR_NODEV)
 204 #define nfserr_notdir           cpu_to_be32(NFSERR_NOTDIR)
 205 #define nfserr_isdir            cpu_to_be32(NFSERR_ISDIR)
 206 #define nfserr_inval            cpu_to_be32(NFSERR_INVAL)
 207 #define nfserr_fbig             cpu_to_be32(NFSERR_FBIG)
 208 #define nfserr_nospc            cpu_to_be32(NFSERR_NOSPC)
 209 #define nfserr_rofs             cpu_to_be32(NFSERR_ROFS)
 210 #define nfserr_mlink            cpu_to_be32(NFSERR_MLINK)
 211 #define nfserr_opnotsupp        cpu_to_be32(NFSERR_OPNOTSUPP)
 212 #define nfserr_nametoolong      cpu_to_be32(NFSERR_NAMETOOLONG)
 213 #define nfserr_notempty         cpu_to_be32(NFSERR_NOTEMPTY)
 214 #define nfserr_dquot            cpu_to_be32(NFSERR_DQUOT)
 215 #define nfserr_stale            cpu_to_be32(NFSERR_STALE)
 216 #define nfserr_remote           cpu_to_be32(NFSERR_REMOTE)
 217 #define nfserr_wflush           cpu_to_be32(NFSERR_WFLUSH)
 218 #define nfserr_badhandle        cpu_to_be32(NFSERR_BADHANDLE)
 219 #define nfserr_notsync          cpu_to_be32(NFSERR_NOT_SYNC)
 220 #define nfserr_badcookie        cpu_to_be32(NFSERR_BAD_COOKIE)
 221 #define nfserr_notsupp          cpu_to_be32(NFSERR_NOTSUPP)
 222 #define nfserr_toosmall         cpu_to_be32(NFSERR_TOOSMALL)
 223 #define nfserr_serverfault      cpu_to_be32(NFSERR_SERVERFAULT)
 224 #define nfserr_badtype          cpu_to_be32(NFSERR_BADTYPE)
 225 #define nfserr_jukebox          cpu_to_be32(NFSERR_JUKEBOX)
 226 #define nfserr_denied           cpu_to_be32(NFSERR_DENIED)
 227 #define nfserr_deadlock         cpu_to_be32(NFSERR_DEADLOCK)
 228 #define nfserr_expired          cpu_to_be32(NFSERR_EXPIRED)
 229 #define nfserr_bad_cookie       cpu_to_be32(NFSERR_BAD_COOKIE)
 230 #define nfserr_same             cpu_to_be32(NFSERR_SAME)
 231 #define nfserr_clid_inuse       cpu_to_be32(NFSERR_CLID_INUSE)
 232 #define nfserr_stale_clientid   cpu_to_be32(NFSERR_STALE_CLIENTID)
 233 #define nfserr_resource         cpu_to_be32(NFSERR_RESOURCE)
 234 #define nfserr_moved            cpu_to_be32(NFSERR_MOVED)
 235 #define nfserr_nofilehandle     cpu_to_be32(NFSERR_NOFILEHANDLE)
 236 #define nfserr_minor_vers_mismatch      cpu_to_be32(NFSERR_MINOR_VERS_MISMATCH)
 237 #define nfserr_share_denied     cpu_to_be32(NFSERR_SHARE_DENIED)
 238 #define nfserr_stale_stateid    cpu_to_be32(NFSERR_STALE_STATEID)
 239 #define nfserr_old_stateid      cpu_to_be32(NFSERR_OLD_STATEID)
 240 #define nfserr_bad_stateid      cpu_to_be32(NFSERR_BAD_STATEID)
 241 #define nfserr_bad_seqid        cpu_to_be32(NFSERR_BAD_SEQID)
 242 #define nfserr_symlink          cpu_to_be32(NFSERR_SYMLINK)
 243 #define nfserr_not_same         cpu_to_be32(NFSERR_NOT_SAME)
 244 #define nfserr_restorefh        cpu_to_be32(NFSERR_RESTOREFH)
 245 #define nfserr_attrnotsupp      cpu_to_be32(NFSERR_ATTRNOTSUPP)
 246 #define nfserr_bad_xdr          cpu_to_be32(NFSERR_BAD_XDR)
 247 #define nfserr_openmode         cpu_to_be32(NFSERR_OPENMODE)
 248 #define nfserr_locks_held       cpu_to_be32(NFSERR_LOCKS_HELD)
 249 #define nfserr_op_illegal       cpu_to_be32(NFSERR_OP_ILLEGAL)
 250 #define nfserr_grace            cpu_to_be32(NFSERR_GRACE)
 251 #define nfserr_no_grace         cpu_to_be32(NFSERR_NO_GRACE)
 252 #define nfserr_reclaim_bad      cpu_to_be32(NFSERR_RECLAIM_BAD)
 253 #define nfserr_badname          cpu_to_be32(NFSERR_BADNAME)
 254 #define nfserr_cb_path_down     cpu_to_be32(NFSERR_CB_PATH_DOWN)
 255 #define nfserr_locked           cpu_to_be32(NFSERR_LOCKED)
 256 #define nfserr_wrongsec         cpu_to_be32(NFSERR_WRONGSEC)
 257 #define nfserr_badiomode                cpu_to_be32(NFS4ERR_BADIOMODE)
 258 #define nfserr_badlayout                cpu_to_be32(NFS4ERR_BADLAYOUT)
 259 #define nfserr_bad_session_digest       cpu_to_be32(NFS4ERR_BAD_SESSION_DIGEST)
 260 #define nfserr_badsession               cpu_to_be32(NFS4ERR_BADSESSION)
 261 #define nfserr_badslot                  cpu_to_be32(NFS4ERR_BADSLOT)
 262 #define nfserr_complete_already         cpu_to_be32(NFS4ERR_COMPLETE_ALREADY)
 263 #define nfserr_conn_not_bound_to_session cpu_to_be32(NFS4ERR_CONN_NOT_BOUND_TO_SESSION)
 264 #define nfserr_deleg_already_wanted     cpu_to_be32(NFS4ERR_DELEG_ALREADY_WANTED)
 265 #define nfserr_back_chan_busy           cpu_to_be32(NFS4ERR_BACK_CHAN_BUSY)
 266 #define nfserr_layouttrylater           cpu_to_be32(NFS4ERR_LAYOUTTRYLATER)
 267 #define nfserr_layoutunavailable        cpu_to_be32(NFS4ERR_LAYOUTUNAVAILABLE)
 268 #define nfserr_nomatching_layout        cpu_to_be32(NFS4ERR_NOMATCHING_LAYOUT)
 269 #define nfserr_recallconflict           cpu_to_be32(NFS4ERR_RECALLCONFLICT)
 270 #define nfserr_unknown_layouttype       cpu_to_be32(NFS4ERR_UNKNOWN_LAYOUTTYPE)
 271 #define nfserr_seq_misordered           cpu_to_be32(NFS4ERR_SEQ_MISORDERED)
 272 #define nfserr_sequence_pos             cpu_to_be32(NFS4ERR_SEQUENCE_POS)
 273 #define nfserr_req_too_big              cpu_to_be32(NFS4ERR_REQ_TOO_BIG)
 274 #define nfserr_rep_too_big              cpu_to_be32(NFS4ERR_REP_TOO_BIG)
 275 #define nfserr_rep_too_big_to_cache     cpu_to_be32(NFS4ERR_REP_TOO_BIG_TO_CACHE)
 276 #define nfserr_retry_uncached_rep       cpu_to_be32(NFS4ERR_RETRY_UNCACHED_REP)
 277 #define nfserr_unsafe_compound          cpu_to_be32(NFS4ERR_UNSAFE_COMPOUND)
 278 #define nfserr_too_many_ops             cpu_to_be32(NFS4ERR_TOO_MANY_OPS)
 279 #define nfserr_op_not_in_session        cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION)
 280 #define nfserr_hash_alg_unsupp          cpu_to_be32(NFS4ERR_HASH_ALG_UNSUPP)
 281 #define nfserr_clientid_busy            cpu_to_be32(NFS4ERR_CLIENTID_BUSY)
 282 #define nfserr_pnfs_io_hole             cpu_to_be32(NFS4ERR_PNFS_IO_HOLE)
 283 #define nfserr_seq_false_retry          cpu_to_be32(NFS4ERR_SEQ_FALSE_RETRY)
 284 #define nfserr_bad_high_slot            cpu_to_be32(NFS4ERR_BAD_HIGH_SLOT)
 285 #define nfserr_deadsession              cpu_to_be32(NFS4ERR_DEADSESSION)
 286 #define nfserr_encr_alg_unsupp          cpu_to_be32(NFS4ERR_ENCR_ALG_UNSUPP)
 287 #define nfserr_pnfs_no_layout           cpu_to_be32(NFS4ERR_PNFS_NO_LAYOUT)
 288 #define nfserr_not_only_op              cpu_to_be32(NFS4ERR_NOT_ONLY_OP)
 289 #define nfserr_wrong_cred               cpu_to_be32(NFS4ERR_WRONG_CRED)
 290 #define nfserr_wrong_type               cpu_to_be32(NFS4ERR_WRONG_TYPE)
 291 #define nfserr_dirdeleg_unavail         cpu_to_be32(NFS4ERR_DIRDELEG_UNAVAIL)
 292 #define nfserr_reject_deleg             cpu_to_be32(NFS4ERR_REJECT_DELEG)
 293 #define nfserr_returnconflict           cpu_to_be32(NFS4ERR_RETURNCONFLICT)
 294 #define nfserr_deleg_revoked            cpu_to_be32(NFS4ERR_DELEG_REVOKED)
 295
 296 /* error codes for internal use */
 297 /* if a request fails due to kmalloc failure, it gets dropped.
 298  *  Client should resend eventually
 299  */
 300 #define nfserr_dropit           cpu_to_be32(30000)
 301 /* end-of-file indicator in readdir */
 302 #define nfserr_eof              cpu_to_be32(30001)
 303 /* replay detected */
 304 #define nfserr_replay_me        cpu_to_be32(11001)
 305 /* nfs41 replay detected */
 306 #define nfserr_replay_cache     cpu_to_be32(11002)
 307
 308 /* Check for dir entries '.' and '..' */
 309 #define isdotent(n, l)  (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
 310
 311 /*
 312  * Time of server startup
 313  */
 314 extern struct timeval   nfssvc_boot;
 315
 316 #ifdef CONFIG_NFSD_V4
 317
 318 /* before processing a COMPOUND operation, we have to check that there
 319  * is enough space in the buffer for XDR encode to succeed.  otherwise,
 320  * we might process an operation with side effects, and be unable to
 321  * tell the client that the operation succeeded.
 322  *
 323  * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space
 324  * needed to encode an "ordinary" _successful_ operation.  (GETATTR,
 325  * READ, READDIR, and READLINK have their own buffer checks.)  if we
 326  * fall below this level, we fail the next operation with NFS4ERR_RESOURCE.
 327  *
 328  * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space
 329  * needed to encode an operation which has failed with NFS4ERR_RESOURCE.
 330  * care is taken to ensure that we never fall below this level for any
 331  * reason.
 332  */
 333 #define COMPOUND_SLACK_SPACE            140    /* OP_GETFH */
 334 #define COMPOUND_ERR_SLACK_SPACE        12     /* OP_SETATTR */
 335
 336 #define NFSD_LEASE_TIME                 (nfs4_lease_time())
 337 #define NFSD_LAUNDROMAT_MINTIMEOUT      10   /* seconds */
 338
 339 /*
 340  * The following attributes are currently not supported by the NFSv4 server:
 341  *    ARCHIVE       (deprecated anyway)
 342  *    HIDDEN        (unlikely to be supported any time soon)
 343  *    MIMETYPE      (unlikely to be supported any time soon)
 344  *    QUOTA_*       (will be supported in a forthcoming patch)
 345  *    SYSTEM        (unlikely to be supported any time soon)
 346  *    TIME_BACKUP   (unlikely to be supported any time soon)
 347  *    TIME_CREATE   (unlikely to be supported any time soon)
 348  */
 349 #define NFSD4_SUPPORTED_ATTRS_WORD0                                                         \
 350 (FATTR4_WORD0_SUPPORTED_ATTRS   | FATTR4_WORD0_TYPE         | FATTR4_WORD0_FH_EXPIRE_TYPE   \
 351  | FATTR4_WORD0_CHANGE          | FATTR4_WORD0_SIZE         | FATTR4_WORD0_LINK_SUPPORT     \
 352  | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR   | FATTR4_WORD0_FSID             \
 353  | FATTR4_WORD0_UNIQUE_HANDLES  | FATTR4_WORD0_LEASE_TIME   | FATTR4_WORD0_RDATTR_ERROR     \
 354  | FATTR4_WORD0_ACLSUPPORT      | FATTR4_WORD0_CANSETTIME   | FATTR4_WORD0_CASE_INSENSITIVE \
 355  | FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED                             \
 356  | FATTR4_WORD0_FILEHANDLE      | FATTR4_WORD0_FILEID       | FATTR4_WORD0_FILES_AVAIL      \
 357  | FATTR4_WORD0_FILES_FREE      | FATTR4_WORD0_FILES_TOTAL  | FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_HOMOGENEOUS      \
 358  | FATTR4_WORD0_MAXFILESIZE     | FATTR4_WORD0_MAXLINK      | FATTR4_WORD0_MAXNAME          \
 359  | FATTR4_WORD0_MAXREAD         | FATTR4_WORD0_MAXWRITE     | FATTR4_WORD0_ACL)
 360
 361 #define NFSD4_SUPPORTED_ATTRS_WORD1                                                         \
 362 (FATTR4_WORD1_MODE              | FATTR4_WORD1_NO_TRUNC     | FATTR4_WORD1_NUMLINKS         \
 363  | FATTR4_WORD1_OWNER           | FATTR4_WORD1_OWNER_GROUP  | FATTR4_WORD1_RAWDEV           \
 364  | FATTR4_WORD1_SPACE_AVAIL     | FATTR4_WORD1_SPACE_FREE   | FATTR4_WORD1_SPACE_TOTAL      \
 365  | FATTR4_WORD1_SPACE_USED      | FATTR4_WORD1_TIME_ACCESS  | FATTR4_WORD1_TIME_ACCESS_SET  \
 366  | FATTR4_WORD1_TIME_DELTA   | FATTR4_WORD1_TIME_METADATA    \
 367  | FATTR4_WORD1_TIME_MODIFY     | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID)
 368
 369 #define NFSD4_SUPPORTED_ATTRS_WORD2 0
 370
 371 #define NFSD4_1_SUPPORTED_ATTRS_WORD0 \
 372         NFSD4_SUPPORTED_ATTRS_WORD0
 373
 374 #define NFSD4_1_SUPPORTED_ATTRS_WORD1 \
 375         NFSD4_SUPPORTED_ATTRS_WORD1
 376
 377 #define NFSD4_1_SUPPORTED_ATTRS_WORD2 \
 378         (NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT)
 379
 380 static inline u32 nfsd_suppattrs0(u32 minorversion)
 381 {
 382         return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD0
 383                             : NFSD4_SUPPORTED_ATTRS_WORD0;
 384 }
 385
 386 static inline u32 nfsd_suppattrs1(u32 minorversion)
 387 {
 388         return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD1
 389                             : NFSD4_SUPPORTED_ATTRS_WORD1;
 390 }
 391
 392 static inline u32 nfsd_suppattrs2(u32 minorversion)
 393 {
 394         return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD2
 395                             : NFSD4_SUPPORTED_ATTRS_WORD2;
 396 }
 397
 398 /* These will return ERR_INVAL if specified in GETATTR or READDIR. */
 399 #define NFSD_WRITEONLY_ATTRS_WORD1                                                          \
 400 (FATTR4_WORD1_TIME_ACCESS_SET   | FATTR4_WORD1_TIME_MODIFY_SET)
 401
 402 /* These are the only attrs allowed in CREATE/OPEN/SETATTR. */
 403 #define NFSD_WRITEABLE_ATTRS_WORD0                                                          \
 404 (FATTR4_WORD0_SIZE              | FATTR4_WORD0_ACL                                         )
 405 #define NFSD_WRITEABLE_ATTRS_WORD1                                                          \
 406 (FATTR4_WORD1_MODE              | FATTR4_WORD1_OWNER         | FATTR4_WORD1_OWNER_GROUP     \
 407  | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
 408 #define NFSD_WRITEABLE_ATTRS_WORD2 0
 409
 410 #define NFSD_SUPPATTR_EXCLCREAT_WORD0 \
 411         NFSD_WRITEABLE_ATTRS_WORD0
 412 /*
 413  * we currently store the exclusive create verifier in the v_{a,m}time
 414  * attributes so the client can't set these at create time using EXCLUSIVE4_1
 415  */
 416 #define NFSD_SUPPATTR_EXCLCREAT_WORD1 \
 417         (NFSD_WRITEABLE_ATTRS_WORD1 & \
 418          ~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET))
 419 #define NFSD_SUPPATTR_EXCLCREAT_WORD2 \
 420         NFSD_WRITEABLE_ATTRS_WORD2
 421
 422 #endif /* CONFIG_NFSD_V4 */
 423
 424 #endif /* LINUX_NFSD_NFSD_H */