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0009 #ifndef LINUX_NFSD_NFSD_H
0010 #define LINUX_NFSD_NFSD_H
0011
0012 #include <linux/types.h>
0013 #include <linux/mount.h>
0014
0015 #include <linux/nfs.h>
0016 #include <linux/nfs2.h>
0017 #include <linux/nfs3.h>
0018 #include <linux/nfs4.h>
0019 #include <linux/sunrpc/svc.h>
0020 #include <linux/sunrpc/svc_xprt.h>
0021 #include <linux/sunrpc/msg_prot.h>
0022 #include <linux/sunrpc/addr.h>
0023
0024 #include <uapi/linux/nfsd/debug.h>
0025
0026 #include "netns.h"
0027 #include "export.h"
0028 #include "stats.h"
0029
0030 #undef ifdebug
0031 #ifdef CONFIG_SUNRPC_DEBUG
0032 # define ifdebug(flag) if (nfsd_debug & NFSDDBG_##flag)
0033 #else
0034 # define ifdebug(flag) if (0)
0035 #endif
0036
0037
0038
0039
0040 #define NFSD_SUPPORTED_MINOR_VERSION 2
0041
0042
0043
0044 #define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD
0045
0046 #define NFSSVC_MAXBLKSIZE_V2 (8*1024)
0047
0048
0049
0050
0051
0052
0053
0054
0055
0056
0057
0058
0059 #define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
0060
0061 struct readdir_cd {
0062 __be32 err;
0063 };
0064
0065
0066 extern struct svc_program nfsd_program;
0067 extern const struct svc_version nfsd_version2, nfsd_version3,
0068 nfsd_version4;
0069 extern struct mutex nfsd_mutex;
0070 extern spinlock_t nfsd_drc_lock;
0071 extern unsigned long nfsd_drc_max_mem;
0072 extern unsigned long nfsd_drc_mem_used;
0073
0074 extern const struct seq_operations nfs_exports_op;
0075
0076
0077
0078
0079 struct nfsd_voidargs { };
0080 struct nfsd_voidres { };
0081 bool nfssvc_decode_voidarg(struct svc_rqst *rqstp,
0082 struct xdr_stream *xdr);
0083 bool nfssvc_encode_voidres(struct svc_rqst *rqstp,
0084 struct xdr_stream *xdr);
0085
0086
0087
0088
0089 int nfsd_svc(int nrservs, struct net *net, const struct cred *cred);
0090 int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp);
0091
0092 int nfsd_nrthreads(struct net *);
0093 int nfsd_nrpools(struct net *);
0094 int nfsd_get_nrthreads(int n, int *, struct net *);
0095 int nfsd_set_nrthreads(int n, int *, struct net *);
0096 int nfsd_pool_stats_open(struct inode *, struct file *);
0097 int nfsd_pool_stats_release(struct inode *, struct file *);
0098 void nfsd_shutdown_threads(struct net *net);
0099
0100 void nfsd_put(struct net *net);
0101
0102 bool i_am_nfsd(void);
0103
0104 struct nfsdfs_client {
0105 struct kref cl_ref;
0106 void (*cl_release)(struct kref *kref);
0107 };
0108
0109 struct nfsdfs_client *get_nfsdfs_client(struct inode *);
0110 struct dentry *nfsd_client_mkdir(struct nfsd_net *nn,
0111 struct nfsdfs_client *ncl, u32 id,
0112 const struct tree_descr *,
0113 struct dentry **fdentries);
0114 void nfsd_client_rmdir(struct dentry *dentry);
0115
0116
0117 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
0118 #ifdef CONFIG_NFSD_V2_ACL
0119 extern const struct svc_version nfsd_acl_version2;
0120 #else
0121 #define nfsd_acl_version2 NULL
0122 #endif
0123 #ifdef CONFIG_NFSD_V3_ACL
0124 extern const struct svc_version nfsd_acl_version3;
0125 #else
0126 #define nfsd_acl_version3 NULL
0127 #endif
0128 #endif
0129
0130 struct nfsd_net;
0131
0132 enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
0133 int nfsd_vers(struct nfsd_net *nn, int vers, enum vers_op change);
0134 int nfsd_minorversion(struct nfsd_net *nn, u32 minorversion, enum vers_op change);
0135 void nfsd_reset_versions(struct nfsd_net *nn);
0136 int nfsd_create_serv(struct net *net);
0137
0138 extern int nfsd_max_blksize;
0139
0140 static inline int nfsd_v4client(struct svc_rqst *rq)
0141 {
0142 return rq->rq_prog == NFS_PROGRAM && rq->rq_vers == 4;
0143 }
0144 static inline struct user_namespace *
0145 nfsd_user_namespace(const struct svc_rqst *rqstp)
0146 {
0147 const struct cred *cred = rqstp->rq_xprt->xpt_cred;
0148 return cred ? cred->user_ns : &init_user_ns;
0149 }
0150
0151
0152
0153
0154 #ifdef CONFIG_NFSD_V4
0155 extern unsigned long max_delegations;
0156 int nfsd4_init_slabs(void);
0157 void nfsd4_free_slabs(void);
0158 int nfs4_state_start(void);
0159 int nfs4_state_start_net(struct net *net);
0160 void nfs4_state_shutdown(void);
0161 void nfs4_state_shutdown_net(struct net *net);
0162 int nfs4_reset_recoverydir(char *recdir);
0163 char * nfs4_recoverydir(void);
0164 bool nfsd4_spo_must_allow(struct svc_rqst *rqstp);
0165 int nfsd4_create_laundry_wq(void);
0166 void nfsd4_destroy_laundry_wq(void);
0167 #else
0168 static inline int nfsd4_init_slabs(void) { return 0; }
0169 static inline void nfsd4_free_slabs(void) { }
0170 static inline int nfs4_state_start(void) { return 0; }
0171 static inline int nfs4_state_start_net(struct net *net) { return 0; }
0172 static inline void nfs4_state_shutdown(void) { }
0173 static inline void nfs4_state_shutdown_net(struct net *net) { }
0174 static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
0175 static inline char * nfs4_recoverydir(void) {return NULL; }
0176 static inline bool nfsd4_spo_must_allow(struct svc_rqst *rqstp)
0177 {
0178 return false;
0179 }
0180 static inline int nfsd4_create_laundry_wq(void) { return 0; };
0181 static inline void nfsd4_destroy_laundry_wq(void) {};
0182 #endif
0183
0184
0185
0186
0187 void nfsd_lockd_init(void);
0188 void nfsd_lockd_shutdown(void);
0189
0190
0191
0192
0193
0194 #define nfs_ok cpu_to_be32(NFS_OK)
0195 #define nfserr_perm cpu_to_be32(NFSERR_PERM)
0196 #define nfserr_noent cpu_to_be32(NFSERR_NOENT)
0197 #define nfserr_io cpu_to_be32(NFSERR_IO)
0198 #define nfserr_nxio cpu_to_be32(NFSERR_NXIO)
0199 #define nfserr_eagain cpu_to_be32(NFSERR_EAGAIN)
0200 #define nfserr_acces cpu_to_be32(NFSERR_ACCES)
0201 #define nfserr_exist cpu_to_be32(NFSERR_EXIST)
0202 #define nfserr_xdev cpu_to_be32(NFSERR_XDEV)
0203 #define nfserr_nodev cpu_to_be32(NFSERR_NODEV)
0204 #define nfserr_notdir cpu_to_be32(NFSERR_NOTDIR)
0205 #define nfserr_isdir cpu_to_be32(NFSERR_ISDIR)
0206 #define nfserr_inval cpu_to_be32(NFSERR_INVAL)
0207 #define nfserr_fbig cpu_to_be32(NFSERR_FBIG)
0208 #define nfserr_nospc cpu_to_be32(NFSERR_NOSPC)
0209 #define nfserr_rofs cpu_to_be32(NFSERR_ROFS)
0210 #define nfserr_mlink cpu_to_be32(NFSERR_MLINK)
0211 #define nfserr_opnotsupp cpu_to_be32(NFSERR_OPNOTSUPP)
0212 #define nfserr_nametoolong cpu_to_be32(NFSERR_NAMETOOLONG)
0213 #define nfserr_notempty cpu_to_be32(NFSERR_NOTEMPTY)
0214 #define nfserr_dquot cpu_to_be32(NFSERR_DQUOT)
0215 #define nfserr_stale cpu_to_be32(NFSERR_STALE)
0216 #define nfserr_remote cpu_to_be32(NFSERR_REMOTE)
0217 #define nfserr_wflush cpu_to_be32(NFSERR_WFLUSH)
0218 #define nfserr_badhandle cpu_to_be32(NFSERR_BADHANDLE)
0219 #define nfserr_notsync cpu_to_be32(NFSERR_NOT_SYNC)
0220 #define nfserr_badcookie cpu_to_be32(NFSERR_BAD_COOKIE)
0221 #define nfserr_notsupp cpu_to_be32(NFSERR_NOTSUPP)
0222 #define nfserr_toosmall cpu_to_be32(NFSERR_TOOSMALL)
0223 #define nfserr_serverfault cpu_to_be32(NFSERR_SERVERFAULT)
0224 #define nfserr_badtype cpu_to_be32(NFSERR_BADTYPE)
0225 #define nfserr_jukebox cpu_to_be32(NFSERR_JUKEBOX)
0226 #define nfserr_denied cpu_to_be32(NFSERR_DENIED)
0227 #define nfserr_deadlock cpu_to_be32(NFSERR_DEADLOCK)
0228 #define nfserr_expired cpu_to_be32(NFSERR_EXPIRED)
0229 #define nfserr_bad_cookie cpu_to_be32(NFSERR_BAD_COOKIE)
0230 #define nfserr_same cpu_to_be32(NFSERR_SAME)
0231 #define nfserr_clid_inuse cpu_to_be32(NFSERR_CLID_INUSE)
0232 #define nfserr_stale_clientid cpu_to_be32(NFSERR_STALE_CLIENTID)
0233 #define nfserr_resource cpu_to_be32(NFSERR_RESOURCE)
0234 #define nfserr_moved cpu_to_be32(NFSERR_MOVED)
0235 #define nfserr_nofilehandle cpu_to_be32(NFSERR_NOFILEHANDLE)
0236 #define nfserr_minor_vers_mismatch cpu_to_be32(NFSERR_MINOR_VERS_MISMATCH)
0237 #define nfserr_share_denied cpu_to_be32(NFSERR_SHARE_DENIED)
0238 #define nfserr_stale_stateid cpu_to_be32(NFSERR_STALE_STATEID)
0239 #define nfserr_old_stateid cpu_to_be32(NFSERR_OLD_STATEID)
0240 #define nfserr_bad_stateid cpu_to_be32(NFSERR_BAD_STATEID)
0241 #define nfserr_bad_seqid cpu_to_be32(NFSERR_BAD_SEQID)
0242 #define nfserr_symlink cpu_to_be32(NFSERR_SYMLINK)
0243 #define nfserr_not_same cpu_to_be32(NFSERR_NOT_SAME)
0244 #define nfserr_lock_range cpu_to_be32(NFSERR_LOCK_RANGE)
0245 #define nfserr_restorefh cpu_to_be32(NFSERR_RESTOREFH)
0246 #define nfserr_attrnotsupp cpu_to_be32(NFSERR_ATTRNOTSUPP)
0247 #define nfserr_bad_xdr cpu_to_be32(NFSERR_BAD_XDR)
0248 #define nfserr_openmode cpu_to_be32(NFSERR_OPENMODE)
0249 #define nfserr_badowner cpu_to_be32(NFSERR_BADOWNER)
0250 #define nfserr_locks_held cpu_to_be32(NFSERR_LOCKS_HELD)
0251 #define nfserr_op_illegal cpu_to_be32(NFSERR_OP_ILLEGAL)
0252 #define nfserr_grace cpu_to_be32(NFSERR_GRACE)
0253 #define nfserr_no_grace cpu_to_be32(NFSERR_NO_GRACE)
0254 #define nfserr_reclaim_bad cpu_to_be32(NFSERR_RECLAIM_BAD)
0255 #define nfserr_badname cpu_to_be32(NFSERR_BADNAME)
0256 #define nfserr_cb_path_down cpu_to_be32(NFSERR_CB_PATH_DOWN)
0257 #define nfserr_locked cpu_to_be32(NFSERR_LOCKED)
0258 #define nfserr_wrongsec cpu_to_be32(NFSERR_WRONGSEC)
0259 #define nfserr_badiomode cpu_to_be32(NFS4ERR_BADIOMODE)
0260 #define nfserr_badlayout cpu_to_be32(NFS4ERR_BADLAYOUT)
0261 #define nfserr_bad_session_digest cpu_to_be32(NFS4ERR_BAD_SESSION_DIGEST)
0262 #define nfserr_badsession cpu_to_be32(NFS4ERR_BADSESSION)
0263 #define nfserr_badslot cpu_to_be32(NFS4ERR_BADSLOT)
0264 #define nfserr_complete_already cpu_to_be32(NFS4ERR_COMPLETE_ALREADY)
0265 #define nfserr_conn_not_bound_to_session cpu_to_be32(NFS4ERR_CONN_NOT_BOUND_TO_SESSION)
0266 #define nfserr_deleg_already_wanted cpu_to_be32(NFS4ERR_DELEG_ALREADY_WANTED)
0267 #define nfserr_back_chan_busy cpu_to_be32(NFS4ERR_BACK_CHAN_BUSY)
0268 #define nfserr_layouttrylater cpu_to_be32(NFS4ERR_LAYOUTTRYLATER)
0269 #define nfserr_layoutunavailable cpu_to_be32(NFS4ERR_LAYOUTUNAVAILABLE)
0270 #define nfserr_nomatching_layout cpu_to_be32(NFS4ERR_NOMATCHING_LAYOUT)
0271 #define nfserr_recallconflict cpu_to_be32(NFS4ERR_RECALLCONFLICT)
0272 #define nfserr_unknown_layouttype cpu_to_be32(NFS4ERR_UNKNOWN_LAYOUTTYPE)
0273 #define nfserr_seq_misordered cpu_to_be32(NFS4ERR_SEQ_MISORDERED)
0274 #define nfserr_sequence_pos cpu_to_be32(NFS4ERR_SEQUENCE_POS)
0275 #define nfserr_req_too_big cpu_to_be32(NFS4ERR_REQ_TOO_BIG)
0276 #define nfserr_rep_too_big cpu_to_be32(NFS4ERR_REP_TOO_BIG)
0277 #define nfserr_rep_too_big_to_cache cpu_to_be32(NFS4ERR_REP_TOO_BIG_TO_CACHE)
0278 #define nfserr_retry_uncached_rep cpu_to_be32(NFS4ERR_RETRY_UNCACHED_REP)
0279 #define nfserr_unsafe_compound cpu_to_be32(NFS4ERR_UNSAFE_COMPOUND)
0280 #define nfserr_too_many_ops cpu_to_be32(NFS4ERR_TOO_MANY_OPS)
0281 #define nfserr_op_not_in_session cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION)
0282 #define nfserr_hash_alg_unsupp cpu_to_be32(NFS4ERR_HASH_ALG_UNSUPP)
0283 #define nfserr_clientid_busy cpu_to_be32(NFS4ERR_CLIENTID_BUSY)
0284 #define nfserr_pnfs_io_hole cpu_to_be32(NFS4ERR_PNFS_IO_HOLE)
0285 #define nfserr_seq_false_retry cpu_to_be32(NFS4ERR_SEQ_FALSE_RETRY)
0286 #define nfserr_bad_high_slot cpu_to_be32(NFS4ERR_BAD_HIGH_SLOT)
0287 #define nfserr_deadsession cpu_to_be32(NFS4ERR_DEADSESSION)
0288 #define nfserr_encr_alg_unsupp cpu_to_be32(NFS4ERR_ENCR_ALG_UNSUPP)
0289 #define nfserr_pnfs_no_layout cpu_to_be32(NFS4ERR_PNFS_NO_LAYOUT)
0290 #define nfserr_not_only_op cpu_to_be32(NFS4ERR_NOT_ONLY_OP)
0291 #define nfserr_wrong_cred cpu_to_be32(NFS4ERR_WRONG_CRED)
0292 #define nfserr_wrong_type cpu_to_be32(NFS4ERR_WRONG_TYPE)
0293 #define nfserr_dirdeleg_unavail cpu_to_be32(NFS4ERR_DIRDELEG_UNAVAIL)
0294 #define nfserr_reject_deleg cpu_to_be32(NFS4ERR_REJECT_DELEG)
0295 #define nfserr_returnconflict cpu_to_be32(NFS4ERR_RETURNCONFLICT)
0296 #define nfserr_deleg_revoked cpu_to_be32(NFS4ERR_DELEG_REVOKED)
0297 #define nfserr_partner_notsupp cpu_to_be32(NFS4ERR_PARTNER_NOTSUPP)
0298 #define nfserr_partner_no_auth cpu_to_be32(NFS4ERR_PARTNER_NO_AUTH)
0299 #define nfserr_union_notsupp cpu_to_be32(NFS4ERR_UNION_NOTSUPP)
0300 #define nfserr_offload_denied cpu_to_be32(NFS4ERR_OFFLOAD_DENIED)
0301 #define nfserr_wrong_lfs cpu_to_be32(NFS4ERR_WRONG_LFS)
0302 #define nfserr_badlabel cpu_to_be32(NFS4ERR_BADLABEL)
0303 #define nfserr_file_open cpu_to_be32(NFS4ERR_FILE_OPEN)
0304 #define nfserr_xattr2big cpu_to_be32(NFS4ERR_XATTR2BIG)
0305 #define nfserr_noxattr cpu_to_be32(NFS4ERR_NOXATTR)
0306
0307
0308
0309
0310
0311 #define nfserr_dropit cpu_to_be32(30000)
0312
0313 #define nfserr_eof cpu_to_be32(30001)
0314
0315 #define nfserr_replay_me cpu_to_be32(11001)
0316
0317 #define nfserr_replay_cache cpu_to_be32(11002)
0318
0319
0320 #define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
0321
0322 #ifdef CONFIG_NFSD_V4
0323
0324
0325
0326
0327
0328
0329
0330
0331
0332
0333
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0335
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0337
0338
0339 #define COMPOUND_SLACK_SPACE 140
0340 #define COMPOUND_ERR_SLACK_SPACE 16
0341
0342 #define NFSD_LAUNDROMAT_MINTIMEOUT 1
0343 #define NFSD_COURTESY_CLIENT_TIMEOUT (24 * 60 * 60)
0344 #define NFSD_CLIENT_MAX_TRIM_PER_RUN 128
0345 #define NFS4_CLIENTS_PER_GB 1024
0346
0347
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0350
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0354
0355
0356
0357 #define NFSD4_SUPPORTED_ATTRS_WORD0 \
0358 (FATTR4_WORD0_SUPPORTED_ATTRS | FATTR4_WORD0_TYPE | FATTR4_WORD0_FH_EXPIRE_TYPE \
0359 | FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE | FATTR4_WORD0_LINK_SUPPORT \
0360 | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR | FATTR4_WORD0_FSID \
0361 | FATTR4_WORD0_UNIQUE_HANDLES | FATTR4_WORD0_LEASE_TIME | FATTR4_WORD0_RDATTR_ERROR \
0362 | FATTR4_WORD0_ACLSUPPORT | FATTR4_WORD0_CANSETTIME | FATTR4_WORD0_CASE_INSENSITIVE \
0363 | FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED \
0364 | FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FILEID | FATTR4_WORD0_FILES_AVAIL \
0365 | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_HOMOGENEOUS \
0366 | FATTR4_WORD0_MAXFILESIZE | FATTR4_WORD0_MAXLINK | FATTR4_WORD0_MAXNAME \
0367 | FATTR4_WORD0_MAXREAD | FATTR4_WORD0_MAXWRITE | FATTR4_WORD0_ACL)
0368
0369 #define NFSD4_SUPPORTED_ATTRS_WORD1 \
0370 (FATTR4_WORD1_MODE | FATTR4_WORD1_NO_TRUNC | FATTR4_WORD1_NUMLINKS \
0371 | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP | FATTR4_WORD1_RAWDEV \
0372 | FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE | FATTR4_WORD1_SPACE_TOTAL \
0373 | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_ACCESS_SET \
0374 | FATTR4_WORD1_TIME_DELTA | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_CREATE \
0375 | FATTR4_WORD1_TIME_MODIFY | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID)
0376
0377 #define NFSD4_SUPPORTED_ATTRS_WORD2 0
0378
0379
0380 #ifdef CONFIG_NFSD_PNFS
0381 #define PNFSD_SUPPORTED_ATTRS_WORD1 FATTR4_WORD1_FS_LAYOUT_TYPES
0382 #define PNFSD_SUPPORTED_ATTRS_WORD2 \
0383 (FATTR4_WORD2_LAYOUT_BLKSIZE | FATTR4_WORD2_LAYOUT_TYPES)
0384 #else
0385 #define PNFSD_SUPPORTED_ATTRS_WORD1 0
0386 #define PNFSD_SUPPORTED_ATTRS_WORD2 0
0387 #endif
0388
0389 #define NFSD4_1_SUPPORTED_ATTRS_WORD0 \
0390 NFSD4_SUPPORTED_ATTRS_WORD0
0391
0392 #define NFSD4_1_SUPPORTED_ATTRS_WORD1 \
0393 (NFSD4_SUPPORTED_ATTRS_WORD1 | PNFSD_SUPPORTED_ATTRS_WORD1)
0394
0395 #define NFSD4_1_SUPPORTED_ATTRS_WORD2 \
0396 (NFSD4_SUPPORTED_ATTRS_WORD2 | PNFSD_SUPPORTED_ATTRS_WORD2 | \
0397 FATTR4_WORD2_SUPPATTR_EXCLCREAT)
0398
0399
0400 #ifdef CONFIG_NFSD_V4_SECURITY_LABEL
0401 #define NFSD4_2_SECURITY_ATTRS FATTR4_WORD2_SECURITY_LABEL
0402 #else
0403 #define NFSD4_2_SECURITY_ATTRS 0
0404 #endif
0405
0406 #define NFSD4_2_SUPPORTED_ATTRS_WORD2 \
0407 (NFSD4_1_SUPPORTED_ATTRS_WORD2 | \
0408 FATTR4_WORD2_MODE_UMASK | \
0409 NFSD4_2_SECURITY_ATTRS | \
0410 FATTR4_WORD2_XATTR_SUPPORT)
0411
0412 extern const u32 nfsd_suppattrs[3][3];
0413
0414 static inline __be32 nfsd4_set_netaddr(struct sockaddr *addr,
0415 struct nfs42_netaddr *netaddr)
0416 {
0417 struct sockaddr_in *sin = (struct sockaddr_in *)addr;
0418 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
0419 unsigned int port;
0420 size_t ret_addr, ret_port;
0421
0422 switch (addr->sa_family) {
0423 case AF_INET:
0424 port = ntohs(sin->sin_port);
0425 sprintf(netaddr->netid, "tcp");
0426 netaddr->netid_len = 3;
0427 break;
0428 case AF_INET6:
0429 port = ntohs(sin6->sin6_port);
0430 sprintf(netaddr->netid, "tcp6");
0431 netaddr->netid_len = 4;
0432 break;
0433 default:
0434 return nfserr_inval;
0435 }
0436 ret_addr = rpc_ntop(addr, netaddr->addr, sizeof(netaddr->addr));
0437 ret_port = snprintf(netaddr->addr + ret_addr,
0438 RPCBIND_MAXUADDRLEN + 1 - ret_addr,
0439 ".%u.%u", port >> 8, port & 0xff);
0440 WARN_ON(ret_port >= RPCBIND_MAXUADDRLEN + 1 - ret_addr);
0441 netaddr->addr_len = ret_addr + ret_port;
0442 return 0;
0443 }
0444
0445 static inline bool bmval_is_subset(const u32 *bm1, const u32 *bm2)
0446 {
0447 return !((bm1[0] & ~bm2[0]) ||
0448 (bm1[1] & ~bm2[1]) ||
0449 (bm1[2] & ~bm2[2]));
0450 }
0451
0452 static inline bool nfsd_attrs_supported(u32 minorversion, const u32 *bmval)
0453 {
0454 return bmval_is_subset(bmval, nfsd_suppattrs[minorversion]);
0455 }
0456
0457
0458 #define NFSD_WRITEONLY_ATTRS_WORD1 \
0459 (FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
0460
0461
0462
0463
0464
0465
0466 #define NFSD_WRITEABLE_ATTRS_WORD0 \
0467 (FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL)
0468 #define NFSD_WRITEABLE_ATTRS_WORD1 \
0469 (FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \
0470 | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_CREATE \
0471 | FATTR4_WORD1_TIME_MODIFY_SET)
0472 #ifdef CONFIG_NFSD_V4_SECURITY_LABEL
0473 #define MAYBE_FATTR4_WORD2_SECURITY_LABEL \
0474 FATTR4_WORD2_SECURITY_LABEL
0475 #else
0476 #define MAYBE_FATTR4_WORD2_SECURITY_LABEL 0
0477 #endif
0478 #define NFSD_WRITEABLE_ATTRS_WORD2 \
0479 (FATTR4_WORD2_MODE_UMASK \
0480 | MAYBE_FATTR4_WORD2_SECURITY_LABEL)
0481
0482 #define NFSD_SUPPATTR_EXCLCREAT_WORD0 \
0483 NFSD_WRITEABLE_ATTRS_WORD0
0484
0485
0486
0487
0488 #define NFSD_SUPPATTR_EXCLCREAT_WORD1 \
0489 (NFSD_WRITEABLE_ATTRS_WORD1 & \
0490 ~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET))
0491 #define NFSD_SUPPATTR_EXCLCREAT_WORD2 \
0492 NFSD_WRITEABLE_ATTRS_WORD2
0493
0494 extern int nfsd4_is_junction(struct dentry *dentry);
0495 extern int register_cld_notifier(void);
0496 extern void unregister_cld_notifier(void);
0497 #ifdef CONFIG_NFSD_V4_2_INTER_SSC
0498 extern void nfsd4_ssc_init_umount_work(struct nfsd_net *nn);
0499 #endif
0500
0501 extern void nfsd4_init_leases_net(struct nfsd_net *nn);
0502
0503 #else
0504 static inline int nfsd4_is_junction(struct dentry *dentry)
0505 {
0506 return 0;
0507 }
0508
0509 static inline void nfsd4_init_leases_net(struct nfsd_net *nn) {};
0510
0511 #define register_cld_notifier() 0
0512 #define unregister_cld_notifier() do { } while(0)
0513
0514 #endif
0515
0516 #endif
