1 /* 2 * Hodge-podge collection of knfsd-related stuff. 3 * I will sort this out later. 4 * 5 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> 6 */ 7 8 #ifndef LINUX_NFSD_NFSD_H 9 #define LINUX_NFSD_NFSD_H 10 11 #include <linux/types.h> 12 #include <linux/mount.h> 13 14 #include <linux/nfs.h> 15 #include <linux/nfs2.h> 16 #include <linux/nfs3.h> 17 #include <linux/nfs4.h> 18 #include <linux/sunrpc/msg_prot.h> 19 20 #include <linux/nfsd/debug.h> 21 #include <linux/nfsd/export.h> 22 #include <linux/nfsd/stats.h> 23 24 /* 25 * nfsd version 26 */ 27 #define NFSD_SUPPORTED_MINOR_VERSION 2 28 /* 29 * Maximum blocksizes supported by daemon under various circumstances. 30 */ 31 #define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD 32 /* NFSv2 is limited by the protocol specification, see RFC 1094 */ 33 #define NFSSVC_MAXBLKSIZE_V2 (8*1024) 34 35 36 /* 37 * Largest number of bytes we need to allocate for an NFS 38 * call or reply. Used to control buffer sizes. We use 39 * the length of v3 WRITE, READDIR and READDIR replies 40 * which are an RPC header, up to 26 XDR units of reply 41 * data, and some page data. 42 * 43 * Note that accuracy here doesn't matter too much as the 44 * size is rounded up to a page size when allocating space. 45 */ 46 #define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE) 47 48 struct readdir_cd { 49 __be32 err; /* 0, nfserr, or nfserr_eof */ 50 }; 51 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 spinlock_t nfsd_drc_lock; 59 extern unsigned long nfsd_drc_max_mem; 60 extern unsigned long nfsd_drc_mem_used; 61 62 extern const struct seq_operations nfs_exports_op; 63 64 /* 65 * Function prototypes. 66 */ 67 int nfsd_svc(int nrservs, struct net *net); 68 int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp); 69 70 int nfsd_nrthreads(struct net *); 71 int nfsd_nrpools(struct net *); 72 int nfsd_get_nrthreads(int n, int *, struct net *); 73 int nfsd_set_nrthreads(int n, int *, struct net *); 74 int nfsd_pool_stats_open(struct inode *, struct file *); 75 int nfsd_pool_stats_release(struct inode *, struct file *); 76 77 void nfsd_destroy(struct net *net); 78 79 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) 80 #ifdef CONFIG_NFSD_V2_ACL 81 extern struct svc_version nfsd_acl_version2; 82 #else 83 #define nfsd_acl_version2 NULL 84 #endif 85 #ifdef CONFIG_NFSD_V3_ACL 86 extern struct svc_version nfsd_acl_version3; 87 #else 88 #define nfsd_acl_version3 NULL 89 #endif 90 #endif 91 92 enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL }; 93 int nfsd_vers(int vers, enum vers_op change); 94 int nfsd_minorversion(u32 minorversion, enum vers_op change); 95 void nfsd_reset_versions(void); 96 int nfsd_create_serv(struct net *net); 97 98 extern int nfsd_max_blksize; 99 100 static inline int nfsd_v4client(struct svc_rqst *rq) 101 { 102 return rq->rq_prog == NFS_PROGRAM && rq->rq_vers == 4; 103 } 104 105 /* 106 * NFSv4 State 107 */ 108 #ifdef CONFIG_NFSD_V4 109 extern unsigned long max_delegations; 110 void nfs4_state_init(void); 111 int nfsd4_init_slabs(void); 112 void nfsd4_free_slabs(void); 113 int nfs4_state_start(void); 114 int nfs4_state_start_net(struct net *net); 115 void nfs4_state_shutdown(void); 116 void nfs4_state_shutdown_net(struct net *net); 117 void nfs4_reset_lease(time_t leasetime); 118 int nfs4_reset_recoverydir(char *recdir); 119 char * nfs4_recoverydir(void); 120 #else 121 static inline void nfs4_state_init(void) { } 122 static inline int nfsd4_init_slabs(void) { return 0; } 123 static inline void nfsd4_free_slabs(void) { } 124 static inline int nfs4_state_start(void) { return 0; } 125 static inline int nfs4_state_start_net(struct net *net) { return 0; } 126 static inline void nfs4_state_shutdown(void) { } 127 static inline void nfs4_state_shutdown_net(struct net *net) { } 128 static inline void nfs4_reset_lease(time_t leasetime) { } 129 static inline int nfs4_reset_recoverydir(char *recdir) { return 0; } 130 static inline char * nfs4_recoverydir(void) {return NULL; } 131 #endif 132 133 /* 134 * lockd binding 135 */ 136 void nfsd_lockd_init(void); 137 void nfsd_lockd_shutdown(void); 138 139 140 /* 141 * These macros provide pre-xdr'ed values for faster operation. 142 */ 143 #define nfs_ok cpu_to_be32(NFS_OK) 144 #define nfserr_perm cpu_to_be32(NFSERR_PERM) 145 #define nfserr_noent cpu_to_be32(NFSERR_NOENT) 146 #define nfserr_io cpu_to_be32(NFSERR_IO) 147 #define nfserr_nxio cpu_to_be32(NFSERR_NXIO) 148 #define nfserr_eagain cpu_to_be32(NFSERR_EAGAIN) 149 #define nfserr_acces cpu_to_be32(NFSERR_ACCES) 150 #define nfserr_exist cpu_to_be32(NFSERR_EXIST) 151 #define nfserr_xdev cpu_to_be32(NFSERR_XDEV) 152 #define nfserr_nodev cpu_to_be32(NFSERR_NODEV) 153 #define nfserr_notdir cpu_to_be32(NFSERR_NOTDIR) 154 #define nfserr_isdir cpu_to_be32(NFSERR_ISDIR) 155 #define nfserr_inval cpu_to_be32(NFSERR_INVAL) 156 #define nfserr_fbig cpu_to_be32(NFSERR_FBIG) 157 #define nfserr_nospc cpu_to_be32(NFSERR_NOSPC) 158 #define nfserr_rofs cpu_to_be32(NFSERR_ROFS) 159 #define nfserr_mlink cpu_to_be32(NFSERR_MLINK) 160 #define nfserr_opnotsupp cpu_to_be32(NFSERR_OPNOTSUPP) 161 #define nfserr_nametoolong cpu_to_be32(NFSERR_NAMETOOLONG) 162 #define nfserr_notempty cpu_to_be32(NFSERR_NOTEMPTY) 163 #define nfserr_dquot cpu_to_be32(NFSERR_DQUOT) 164 #define nfserr_stale cpu_to_be32(NFSERR_STALE) 165 #define nfserr_remote cpu_to_be32(NFSERR_REMOTE) 166 #define nfserr_wflush cpu_to_be32(NFSERR_WFLUSH) 167 #define nfserr_badhandle cpu_to_be32(NFSERR_BADHANDLE) 168 #define nfserr_notsync cpu_to_be32(NFSERR_NOT_SYNC) 169 #define nfserr_badcookie cpu_to_be32(NFSERR_BAD_COOKIE) 170 #define nfserr_notsupp cpu_to_be32(NFSERR_NOTSUPP) 171 #define nfserr_toosmall cpu_to_be32(NFSERR_TOOSMALL) 172 #define nfserr_serverfault cpu_to_be32(NFSERR_SERVERFAULT) 173 #define nfserr_badtype cpu_to_be32(NFSERR_BADTYPE) 174 #define nfserr_jukebox cpu_to_be32(NFSERR_JUKEBOX) 175 #define nfserr_denied cpu_to_be32(NFSERR_DENIED) 176 #define nfserr_deadlock cpu_to_be32(NFSERR_DEADLOCK) 177 #define nfserr_expired cpu_to_be32(NFSERR_EXPIRED) 178 #define nfserr_bad_cookie cpu_to_be32(NFSERR_BAD_COOKIE) 179 #define nfserr_same cpu_to_be32(NFSERR_SAME) 180 #define nfserr_clid_inuse cpu_to_be32(NFSERR_CLID_INUSE) 181 #define nfserr_stale_clientid cpu_to_be32(NFSERR_STALE_CLIENTID) 182 #define nfserr_resource cpu_to_be32(NFSERR_RESOURCE) 183 #define nfserr_moved cpu_to_be32(NFSERR_MOVED) 184 #define nfserr_nofilehandle cpu_to_be32(NFSERR_NOFILEHANDLE) 185 #define nfserr_minor_vers_mismatch cpu_to_be32(NFSERR_MINOR_VERS_MISMATCH) 186 #define nfserr_share_denied cpu_to_be32(NFSERR_SHARE_DENIED) 187 #define nfserr_stale_stateid cpu_to_be32(NFSERR_STALE_STATEID) 188 #define nfserr_old_stateid cpu_to_be32(NFSERR_OLD_STATEID) 189 #define nfserr_bad_stateid cpu_to_be32(NFSERR_BAD_STATEID) 190 #define nfserr_bad_seqid cpu_to_be32(NFSERR_BAD_SEQID) 191 #define nfserr_symlink cpu_to_be32(NFSERR_SYMLINK) 192 #define nfserr_not_same cpu_to_be32(NFSERR_NOT_SAME) 193 #define nfserr_lock_range cpu_to_be32(NFSERR_LOCK_RANGE) 194 #define nfserr_restorefh cpu_to_be32(NFSERR_RESTOREFH) 195 #define nfserr_attrnotsupp cpu_to_be32(NFSERR_ATTRNOTSUPP) 196 #define nfserr_bad_xdr cpu_to_be32(NFSERR_BAD_XDR) 197 #define nfserr_openmode cpu_to_be32(NFSERR_OPENMODE) 198 #define nfserr_badowner cpu_to_be32(NFSERR_BADOWNER) 199 #define nfserr_locks_held cpu_to_be32(NFSERR_LOCKS_HELD) 200 #define nfserr_op_illegal cpu_to_be32(NFSERR_OP_ILLEGAL) 201 #define nfserr_grace cpu_to_be32(NFSERR_GRACE) 202 #define nfserr_no_grace cpu_to_be32(NFSERR_NO_GRACE) 203 #define nfserr_reclaim_bad cpu_to_be32(NFSERR_RECLAIM_BAD) 204 #define nfserr_badname cpu_to_be32(NFSERR_BADNAME) 205 #define nfserr_cb_path_down cpu_to_be32(NFSERR_CB_PATH_DOWN) 206 #define nfserr_locked cpu_to_be32(NFSERR_LOCKED) 207 #define nfserr_wrongsec cpu_to_be32(NFSERR_WRONGSEC) 208 #define nfserr_badiomode cpu_to_be32(NFS4ERR_BADIOMODE) 209 #define nfserr_badlayout cpu_to_be32(NFS4ERR_BADLAYOUT) 210 #define nfserr_bad_session_digest cpu_to_be32(NFS4ERR_BAD_SESSION_DIGEST) 211 #define nfserr_badsession cpu_to_be32(NFS4ERR_BADSESSION) 212 #define nfserr_badslot cpu_to_be32(NFS4ERR_BADSLOT) 213 #define nfserr_complete_already cpu_to_be32(NFS4ERR_COMPLETE_ALREADY) 214 #define nfserr_conn_not_bound_to_session cpu_to_be32(NFS4ERR_CONN_NOT_BOUND_TO_SESSION) 215 #define nfserr_deleg_already_wanted cpu_to_be32(NFS4ERR_DELEG_ALREADY_WANTED) 216 #define nfserr_back_chan_busy cpu_to_be32(NFS4ERR_BACK_CHAN_BUSY) 217 #define nfserr_layouttrylater cpu_to_be32(NFS4ERR_LAYOUTTRYLATER) 218 #define nfserr_layoutunavailable cpu_to_be32(NFS4ERR_LAYOUTUNAVAILABLE) 219 #define nfserr_nomatching_layout cpu_to_be32(NFS4ERR_NOMATCHING_LAYOUT) 220 #define nfserr_recallconflict cpu_to_be32(NFS4ERR_RECALLCONFLICT) 221 #define nfserr_unknown_layouttype cpu_to_be32(NFS4ERR_UNKNOWN_LAYOUTTYPE) 222 #define nfserr_seq_misordered cpu_to_be32(NFS4ERR_SEQ_MISORDERED) 223 #define nfserr_sequence_pos cpu_to_be32(NFS4ERR_SEQUENCE_POS) 224 #define nfserr_req_too_big cpu_to_be32(NFS4ERR_REQ_TOO_BIG) 225 #define nfserr_rep_too_big cpu_to_be32(NFS4ERR_REP_TOO_BIG) 226 #define nfserr_rep_too_big_to_cache cpu_to_be32(NFS4ERR_REP_TOO_BIG_TO_CACHE) 227 #define nfserr_retry_uncached_rep cpu_to_be32(NFS4ERR_RETRY_UNCACHED_REP) 228 #define nfserr_unsafe_compound cpu_to_be32(NFS4ERR_UNSAFE_COMPOUND) 229 #define nfserr_too_many_ops cpu_to_be32(NFS4ERR_TOO_MANY_OPS) 230 #define nfserr_op_not_in_session cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION) 231 #define nfserr_hash_alg_unsupp cpu_to_be32(NFS4ERR_HASH_ALG_UNSUPP) 232 #define nfserr_clientid_busy cpu_to_be32(NFS4ERR_CLIENTID_BUSY) 233 #define nfserr_pnfs_io_hole cpu_to_be32(NFS4ERR_PNFS_IO_HOLE) 234 #define nfserr_seq_false_retry cpu_to_be32(NFS4ERR_SEQ_FALSE_RETRY) 235 #define nfserr_bad_high_slot cpu_to_be32(NFS4ERR_BAD_HIGH_SLOT) 236 #define nfserr_deadsession cpu_to_be32(NFS4ERR_DEADSESSION) 237 #define nfserr_encr_alg_unsupp cpu_to_be32(NFS4ERR_ENCR_ALG_UNSUPP) 238 #define nfserr_pnfs_no_layout cpu_to_be32(NFS4ERR_PNFS_NO_LAYOUT) 239 #define nfserr_not_only_op cpu_to_be32(NFS4ERR_NOT_ONLY_OP) 240 #define nfserr_wrong_cred cpu_to_be32(NFS4ERR_WRONG_CRED) 241 #define nfserr_wrong_type cpu_to_be32(NFS4ERR_WRONG_TYPE) 242 #define nfserr_dirdeleg_unavail cpu_to_be32(NFS4ERR_DIRDELEG_UNAVAIL) 243 #define nfserr_reject_deleg cpu_to_be32(NFS4ERR_REJECT_DELEG) 244 #define nfserr_returnconflict cpu_to_be32(NFS4ERR_RETURNCONFLICT) 245 #define nfserr_deleg_revoked cpu_to_be32(NFS4ERR_DELEG_REVOKED) 246 #define nfserr_partner_notsupp cpu_to_be32(NFS4ERR_PARTNER_NOTSUPP) 247 #define nfserr_partner_no_auth cpu_to_be32(NFS4ERR_PARTNER_NO_AUTH) 248 #define nfserr_metadata_notsupp cpu_to_be32(NFS4ERR_METADATA_NOTSUPP) 249 #define nfserr_offload_denied cpu_to_be32(NFS4ERR_OFFLOAD_DENIED) 250 #define nfserr_wrong_lfs cpu_to_be32(NFS4ERR_WRONG_LFS) 251 #define nfserr_badlabel cpu_to_be32(NFS4ERR_BADLABEL) 252 253 /* error codes for internal use */ 254 /* if a request fails due to kmalloc failure, it gets dropped. 255 * Client should resend eventually 256 */ 257 #define nfserr_dropit cpu_to_be32(30000) 258 /* end-of-file indicator in readdir */ 259 #define nfserr_eof cpu_to_be32(30001) 260 /* replay detected */ 261 #define nfserr_replay_me cpu_to_be32(11001) 262 /* nfs41 replay detected */ 263 #define nfserr_replay_cache cpu_to_be32(11002) 264 265 /* Check for dir entries '.' and '..' */ 266 #define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.')) 267 268 #ifdef CONFIG_NFSD_V4 269 270 /* before processing a COMPOUND operation, we have to check that there 271 * is enough space in the buffer for XDR encode to succeed. otherwise, 272 * we might process an operation with side effects, and be unable to 273 * tell the client that the operation succeeded. 274 * 275 * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space 276 * needed to encode an "ordinary" _successful_ operation. (GETATTR, 277 * READ, READDIR, and READLINK have their own buffer checks.) if we 278 * fall below this level, we fail the next operation with NFS4ERR_RESOURCE. 279 * 280 * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space 281 * needed to encode an operation which has failed with NFS4ERR_RESOURCE. 282 * care is taken to ensure that we never fall below this level for any 283 * reason. 284 */ 285 #define COMPOUND_SLACK_SPACE 140 /* OP_GETFH */ 286 #define COMPOUND_ERR_SLACK_SPACE 12 /* OP_SETATTR */ 287 288 #define NFSD_LAUNDROMAT_MINTIMEOUT 1 /* seconds */ 289 290 /* 291 * The following attributes are currently not supported by the NFSv4 server: 292 * ARCHIVE (deprecated anyway) 293 * HIDDEN (unlikely to be supported any time soon) 294 * MIMETYPE (unlikely to be supported any time soon) 295 * QUOTA_* (will be supported in a forthcoming patch) 296 * SYSTEM (unlikely to be supported any time soon) 297 * TIME_BACKUP (unlikely to be supported any time soon) 298 * TIME_CREATE (unlikely to be supported any time soon) 299 */ 300 #define NFSD4_SUPPORTED_ATTRS_WORD0 \ 301 (FATTR4_WORD0_SUPPORTED_ATTRS | FATTR4_WORD0_TYPE | FATTR4_WORD0_FH_EXPIRE_TYPE \ 302 | FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE | FATTR4_WORD0_LINK_SUPPORT \ 303 | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR | FATTR4_WORD0_FSID \ 304 | FATTR4_WORD0_UNIQUE_HANDLES | FATTR4_WORD0_LEASE_TIME | FATTR4_WORD0_RDATTR_ERROR \ 305 | FATTR4_WORD0_ACLSUPPORT | FATTR4_WORD0_CANSETTIME | FATTR4_WORD0_CASE_INSENSITIVE \ 306 | FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED \ 307 | FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FILEID | FATTR4_WORD0_FILES_AVAIL \ 308 | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_HOMOGENEOUS \ 309 | FATTR4_WORD0_MAXFILESIZE | FATTR4_WORD0_MAXLINK | FATTR4_WORD0_MAXNAME \ 310 | FATTR4_WORD0_MAXREAD | FATTR4_WORD0_MAXWRITE | FATTR4_WORD0_ACL) 311 312 #define NFSD4_SUPPORTED_ATTRS_WORD1 \ 313 (FATTR4_WORD1_MODE | FATTR4_WORD1_NO_TRUNC | FATTR4_WORD1_NUMLINKS \ 314 | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP | FATTR4_WORD1_RAWDEV \ 315 | FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE | FATTR4_WORD1_SPACE_TOTAL \ 316 | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_ACCESS_SET \ 317 | FATTR4_WORD1_TIME_DELTA | FATTR4_WORD1_TIME_METADATA \ 318 | FATTR4_WORD1_TIME_MODIFY | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID) 319 320 #define NFSD4_SUPPORTED_ATTRS_WORD2 0 321 322 #define NFSD4_1_SUPPORTED_ATTRS_WORD0 \ 323 NFSD4_SUPPORTED_ATTRS_WORD0 324 325 #define NFSD4_1_SUPPORTED_ATTRS_WORD1 \ 326 NFSD4_SUPPORTED_ATTRS_WORD1 327 328 #define NFSD4_1_SUPPORTED_ATTRS_WORD2 \ 329 (NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT) 330 331 static inline u32 nfsd_suppattrs0(u32 minorversion) 332 { 333 return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD0 334 : NFSD4_SUPPORTED_ATTRS_WORD0; 335 } 336 337 static inline u32 nfsd_suppattrs1(u32 minorversion) 338 { 339 return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD1 340 : NFSD4_SUPPORTED_ATTRS_WORD1; 341 } 342 343 static inline u32 nfsd_suppattrs2(u32 minorversion) 344 { 345 return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD2 346 : NFSD4_SUPPORTED_ATTRS_WORD2; 347 } 348 349 /* These will return ERR_INVAL if specified in GETATTR or READDIR. */ 350 #define NFSD_WRITEONLY_ATTRS_WORD1 \ 351 (FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET) 352 353 /* These are the only attrs allowed in CREATE/OPEN/SETATTR. */ 354 #define NFSD_WRITEABLE_ATTRS_WORD0 \ 355 (FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL) 356 #define NFSD_WRITEABLE_ATTRS_WORD1 \ 357 (FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \ 358 | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET) 359 #define NFSD_WRITEABLE_ATTRS_WORD2 0 360 361 #define NFSD_SUPPATTR_EXCLCREAT_WORD0 \ 362 NFSD_WRITEABLE_ATTRS_WORD0 363 /* 364 * we currently store the exclusive create verifier in the v_{a,m}time 365 * attributes so the client can't set these at create time using EXCLUSIVE4_1 366 */ 367 #define NFSD_SUPPATTR_EXCLCREAT_WORD1 \ 368 (NFSD_WRITEABLE_ATTRS_WORD1 & \ 369 ~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)) 370 #define NFSD_SUPPATTR_EXCLCREAT_WORD2 \ 371 NFSD_WRITEABLE_ATTRS_WORD2 372 373 extern int nfsd4_is_junction(struct dentry *dentry); 374 extern int register_cld_notifier(void); 375 extern void unregister_cld_notifier(void); 376 #else /* CONFIG_NFSD_V4 */ 377 static inline int nfsd4_is_junction(struct dentry *dentry) 378 { 379 return 0; 380 } 381 382 #define register_cld_notifier() 0 383 #define unregister_cld_notifier() do { } while(0) 384 385 #endif /* CONFIG_NFSD_V4 */ 386 387 #endif /* LINUX_NFSD_NFSD_H */ 388