blob: 07a473fd49bc1a577bfbc1c44c37efaafb9d01a0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/mount.h>
13
J. Bruce Fieldsc10bd392011-08-19 11:38:52 -040014#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include <linux/nfsd/debug.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <linux/nfsd/export.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <linux/nfsd/stats.h>
J. Bruce Fieldsc10bd392011-08-19 11:38:52 -040023
Linus Torvalds1da177e2005-04-16 15:20:36 -070024/*
25 * nfsd version
26 */
Marc Eshelf3ec22b2009-04-03 08:29:02 +030027#define NFSD_SUPPORTED_MINOR_VERSION 1
J. Bruce Fieldsc10bd392011-08-19 11:38:52 -040028/*
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)
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
Linus Torvalds1da177e2005-04-16 15:20:36 -070048struct readdir_cd {
Al Viro131a21c2006-10-19 23:28:56 -070049 __be32 err; /* 0, nfserr, or nfserr_eof */
Linus Torvalds1da177e2005-04-16 15:20:36 -070050};
J. Bruce Fields0a3adad2009-11-04 18:12:35 -050051
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
53extern struct svc_program nfsd_program;
54extern struct svc_version nfsd_version2, nfsd_version3,
55 nfsd_version4;
Benny Halevy8daf2202009-04-03 08:28:59 +030056extern u32 nfsd_supported_minorversion;
Neil Brownbedbdd82008-06-10 08:40:35 -040057extern struct mutex nfsd_mutex;
Andy Adamson4bd9b0f42009-06-24 15:37:45 -040058extern spinlock_t nfsd_drc_lock;
Zhang Yanfei697ce9b2013-02-22 16:35:47 -080059extern unsigned long nfsd_drc_max_mem;
60extern unsigned long nfsd_drc_mem_used;
Harvey Harrisona254b242008-02-20 12:49:00 -080061
James Morris88e9d342009-09-22 16:43:43 -070062extern const struct seq_operations nfs_exports_op;
Harvey Harrisona254b242008-02-20 12:49:00 -080063
Linus Torvalds1da177e2005-04-16 15:20:36 -070064/*
65 * Function prototypes.
66 */
Stanislav Kinsburskyd41a9412012-12-10 12:19:25 +030067int nfsd_svc(int nrservs, struct net *net);
Al Viroc7afef12006-10-19 23:29:02 -070068int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp);
Linus Torvalds1da177e2005-04-16 15:20:36 -070069
Stanislav Kinsbursky9dd98452012-12-06 14:23:24 +030070int nfsd_nrthreads(struct net *);
71int nfsd_nrpools(struct net *);
72int nfsd_get_nrthreads(int n, int *, struct net *);
Stanislav Kinsbursky3938a0d2012-12-10 12:19:30 +030073int nfsd_set_nrthreads(int n, int *, struct net *);
J. Bruce Fields7f2e7dc2012-06-12 16:06:29 -040074int nfsd_pool_stats_open(struct inode *, struct file *);
75int nfsd_pool_stats_release(struct inode *, struct file *);
Harvey Harrisona254b242008-02-20 12:49:00 -080076
Stanislav Kinsbursky9dd98452012-12-06 14:23:24 +030077void nfsd_destroy(struct net *net);
Stanislav Kinsbursky19f7e2c2012-07-03 16:46:41 +040078
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +000079#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
80#ifdef CONFIG_NFSD_V2_ACL
81extern struct svc_version nfsd_acl_version2;
82#else
83#define nfsd_acl_version2 NULL
84#endif
85#ifdef CONFIG_NFSD_V3_ACL
86extern struct svc_version nfsd_acl_version3;
87#else
88#define nfsd_acl_version3 NULL
89#endif
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +000090#endif
91
NeilBrown6658d3a2006-10-02 02:17:46 -070092enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
93int nfsd_vers(int vers, enum vers_op change);
Benny Halevy8daf2202009-04-03 08:28:59 +030094int nfsd_minorversion(u32 minorversion, enum vers_op change);
NeilBrown6658d3a2006-10-02 02:17:46 -070095void nfsd_reset_versions(void);
Stanislav Kinsbursky67774362012-12-10 12:19:20 +030096int nfsd_create_serv(struct net *net);
NeilBrown6658d3a2006-10-02 02:17:46 -070097
NeilBrown596bbe52006-10-04 02:15:48 -070098extern int nfsd_max_blksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
Steve Dickson03a816b2009-09-09 15:06:05 -0400100static inline int nfsd_v4client(struct svc_rqst *rq)
101{
102 return rq->rq_prog == NFS_PROGRAM && rq->rq_vers == 4;
103}
104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105/*
106 * NFSv4 State
107 */
108#ifdef CONFIG_NFSD_V4
Zhang Yanfei697ce9b2013-02-22 16:35:47 -0800109extern unsigned long max_delegations;
Bryan Schumaker72083392011-11-01 15:24:59 -0400110void nfs4_state_init(void);
111int nfsd4_init_slabs(void);
J. Bruce Fieldse8ff2a82007-08-01 15:30:59 -0400112void nfsd4_free_slabs(void);
J. Bruce Fields29ab23c2009-09-15 15:56:50 -0400113int nfs4_state_start(void);
Stanislav Kinsburskyf252bc62012-11-26 15:22:18 +0300114int nfs4_state_start_net(struct net *net);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115void nfs4_state_shutdown(void);
Stanislav Kinsburskyf252bc62012-11-26 15:22:18 +0300116void nfs4_state_shutdown_net(struct net *net);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117void nfs4_reset_lease(time_t leasetime);
NeilBrown0964a3d2005-06-23 22:04:32 -0700118int nfs4_reset_recoverydir(char *recdir);
J. Bruce Fields87f26f92012-07-27 15:49:26 -0400119char * nfs4_recoverydir(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120#else
Bryan Schumaker72083392011-11-01 15:24:59 -0400121static inline void nfs4_state_init(void) { }
122static inline int nfsd4_init_slabs(void) { return 0; }
J. Bruce Fieldse8ff2a82007-08-01 15:30:59 -0400123static inline void nfsd4_free_slabs(void) { }
Stephen Rothwellc0826572009-09-17 17:03:06 +1000124static inline int nfs4_state_start(void) { return 0; }
Stanislav Kinsburskyf252bc62012-11-26 15:22:18 +0300125static inline int nfs4_state_start_net(struct net *net) { return 0; }
J. Bruce Fieldse8ff2a82007-08-01 15:30:59 -0400126static inline void nfs4_state_shutdown(void) { }
Stanislav Kinsburskyf252bc62012-11-26 15:22:18 +0300127static inline void nfs4_state_shutdown_net(struct net *net) { }
J. Bruce Fieldse8ff2a82007-08-01 15:30:59 -0400128static inline void nfs4_reset_lease(time_t leasetime) { }
129static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
J. Bruce Fields87f26f92012-07-27 15:49:26 -0400130static inline char * nfs4_recoverydir(void) {return NULL; }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131#endif
132
133/*
134 * lockd binding
135 */
136void nfsd_lockd_init(void);
137void nfsd_lockd_shutdown(void);
138
139
140/*
141 * These macros provide pre-xdr'ed values for faster operation.
142 */
Harvey Harrison77f18f52009-02-11 17:16:58 -0800143#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)
J. Bruce Fieldsf9d75622010-07-08 11:02:09 -0400193#define nfserr_lock_range cpu_to_be32(NFSERR_LOCK_RANGE)
Harvey Harrison77f18f52009-02-11 17:16:58 -0800194#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)
J. Bruce Fieldsf6af99e2011-01-04 18:02:15 -0500198#define nfserr_badowner cpu_to_be32(NFSERR_BADOWNER)
Harvey Harrison77f18f52009-02-11 17:16:58 -0800199#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)
Marc Eshel10add802009-04-03 08:27:40 +0300208#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)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246
247/* error codes for internal use */
248/* if a request fails due to kmalloc failure, it gets dropped.
249 * Client should resend eventually
250 */
Harvey Harrison77f18f52009-02-11 17:16:58 -0800251#define nfserr_dropit cpu_to_be32(30000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252/* end-of-file indicator in readdir */
Harvey Harrison77f18f52009-02-11 17:16:58 -0800253#define nfserr_eof cpu_to_be32(30001)
Marc Eshel10add802009-04-03 08:27:40 +0300254/* replay detected */
255#define nfserr_replay_me cpu_to_be32(11001)
256/* nfs41 replay detected */
257#define nfserr_replay_cache cpu_to_be32(11002)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
259/* Check for dir entries '.' and '..' */
260#define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262#ifdef CONFIG_NFSD_V4
263
264/* before processing a COMPOUND operation, we have to check that there
265 * is enough space in the buffer for XDR encode to succeed. otherwise,
266 * we might process an operation with side effects, and be unable to
267 * tell the client that the operation succeeded.
268 *
J.Bruce Fieldse5710192006-12-13 00:35:20 -0800269 * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 * needed to encode an "ordinary" _successful_ operation. (GETATTR,
271 * READ, READDIR, and READLINK have their own buffer checks.) if we
272 * fall below this level, we fail the next operation with NFS4ERR_RESOURCE.
273 *
J.Bruce Fieldse5710192006-12-13 00:35:20 -0800274 * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 * needed to encode an operation which has failed with NFS4ERR_RESOURCE.
276 * care is taken to ensure that we never fall below this level for any
277 * reason.
278 */
279#define COMPOUND_SLACK_SPACE 140 /* OP_GETFH */
280#define COMPOUND_ERR_SLACK_SPACE 12 /* OP_SETATTR */
281
J. Bruce Fieldsecec6e32010-10-11 16:49:44 -0400282#define NFSD_LAUNDROMAT_MINTIMEOUT 1 /* seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
284/*
285 * The following attributes are currently not supported by the NFSv4 server:
286 * ARCHIVE (deprecated anyway)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 * HIDDEN (unlikely to be supported any time soon)
288 * MIMETYPE (unlikely to be supported any time soon)
289 * QUOTA_* (will be supported in a forthcoming patch)
290 * SYSTEM (unlikely to be supported any time soon)
291 * TIME_BACKUP (unlikely to be supported any time soon)
292 * TIME_CREATE (unlikely to be supported any time soon)
293 */
Andy Adamson7e705702009-04-03 08:29:11 +0300294#define NFSD4_SUPPORTED_ATTRS_WORD0 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295(FATTR4_WORD0_SUPPORTED_ATTRS | FATTR4_WORD0_TYPE | FATTR4_WORD0_FH_EXPIRE_TYPE \
296 | FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE | FATTR4_WORD0_LINK_SUPPORT \
297 | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR | FATTR4_WORD0_FSID \
298 | FATTR4_WORD0_UNIQUE_HANDLES | FATTR4_WORD0_LEASE_TIME | FATTR4_WORD0_RDATTR_ERROR \
299 | FATTR4_WORD0_ACLSUPPORT | FATTR4_WORD0_CANSETTIME | FATTR4_WORD0_CASE_INSENSITIVE \
300 | FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED \
301 | FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FILEID | FATTR4_WORD0_FILES_AVAIL \
J.Bruce Fields81c3f412006-10-04 02:16:19 -0700302 | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_HOMOGENEOUS \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 | FATTR4_WORD0_MAXFILESIZE | FATTR4_WORD0_MAXLINK | FATTR4_WORD0_MAXNAME \
304 | FATTR4_WORD0_MAXREAD | FATTR4_WORD0_MAXWRITE | FATTR4_WORD0_ACL)
305
Andy Adamson7e705702009-04-03 08:29:11 +0300306#define NFSD4_SUPPORTED_ATTRS_WORD1 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307(FATTR4_WORD1_MODE | FATTR4_WORD1_NO_TRUNC | FATTR4_WORD1_NUMLINKS \
308 | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP | FATTR4_WORD1_RAWDEV \
309 | FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE | FATTR4_WORD1_SPACE_TOTAL \
310 | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_ACCESS_SET \
311 | FATTR4_WORD1_TIME_DELTA | FATTR4_WORD1_TIME_METADATA \
312 | FATTR4_WORD1_TIME_MODIFY | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID)
313
Andy Adamson7e705702009-04-03 08:29:11 +0300314#define NFSD4_SUPPORTED_ATTRS_WORD2 0
315
316#define NFSD4_1_SUPPORTED_ATTRS_WORD0 \
317 NFSD4_SUPPORTED_ATTRS_WORD0
318
319#define NFSD4_1_SUPPORTED_ATTRS_WORD1 \
320 NFSD4_SUPPORTED_ATTRS_WORD1
321
322#define NFSD4_1_SUPPORTED_ATTRS_WORD2 \
Benny Halevy8c18f202009-04-03 08:29:14 +0300323 (NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT)
Andy Adamson7e705702009-04-03 08:29:11 +0300324
325static inline u32 nfsd_suppattrs0(u32 minorversion)
326{
327 return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD0
328 : NFSD4_SUPPORTED_ATTRS_WORD0;
329}
330
331static inline u32 nfsd_suppattrs1(u32 minorversion)
332{
333 return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD1
334 : NFSD4_SUPPORTED_ATTRS_WORD1;
335}
336
337static inline u32 nfsd_suppattrs2(u32 minorversion)
338{
339 return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD2
340 : NFSD4_SUPPORTED_ATTRS_WORD2;
341}
342
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343/* These will return ERR_INVAL if specified in GETATTR or READDIR. */
Bryan Schumakerc7e84722011-11-01 14:18:28 -0400344#define NFSD_WRITEONLY_ATTRS_WORD1 \
345 (FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347/* These are the only attrs allowed in CREATE/OPEN/SETATTR. */
Bryan Schumakerc7e84722011-11-01 14:18:28 -0400348#define NFSD_WRITEABLE_ATTRS_WORD0 \
349 (FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL)
350#define NFSD_WRITEABLE_ATTRS_WORD1 \
351 (FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \
352 | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
Andy Adamson7e705702009-04-03 08:29:11 +0300353#define NFSD_WRITEABLE_ATTRS_WORD2 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
Benny Halevy8c18f202009-04-03 08:29:14 +0300355#define NFSD_SUPPATTR_EXCLCREAT_WORD0 \
356 NFSD_WRITEABLE_ATTRS_WORD0
357/*
358 * we currently store the exclusive create verifier in the v_{a,m}time
359 * attributes so the client can't set these at create time using EXCLUSIVE4_1
360 */
361#define NFSD_SUPPATTR_EXCLCREAT_WORD1 \
362 (NFSD_WRITEABLE_ATTRS_WORD1 & \
363 ~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET))
364#define NFSD_SUPPATTR_EXCLCREAT_WORD2 \
365 NFSD_WRITEABLE_ATTRS_WORD2
366
Trond Myklebust11fcee022011-09-12 19:37:26 -0400367extern int nfsd4_is_junction(struct dentry *dentry);
Jeff Layton797a9d72012-03-29 07:52:49 -0400368extern int register_cld_notifier(void);
369extern void unregister_cld_notifier(void);
370#else /* CONFIG_NFSD_V4 */
Trond Myklebust11fcee022011-09-12 19:37:26 -0400371static inline int nfsd4_is_junction(struct dentry *dentry)
372{
373 return 0;
374}
375
Jeff Layton797a9d72012-03-29 07:52:49 -0400376#define register_cld_notifier() 0
377#define unregister_cld_notifier() do { } while(0)
378
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379#endif /* CONFIG_NFSD_V4 */
380
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381#endif /* LINUX_NFSD_NFSD_H */