1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/sunrpc/xprt.h>
12 unsigned short valid; /* which fields are valid */
13 __u64 pre_size; /* pre_op_attr.size */
14 struct timespec pre_mtime; /* pre_op_attr.mtime */
15 struct timespec pre_ctime; /* pre_op_attr.ctime */
16 enum nfs_ftype type; /* always use NFSv2 types */
33 __u64 nfs3; /* also nfs2 */
34 struct nfs4_fsid nfs4;
37 struct timespec atime;
38 struct timespec mtime;
39 struct timespec ctime;
40 __u32 bitmap[2]; /* NFSv4 returned attribute bitmap */
41 __u64 change_attr; /* NFSv4 change attribute */
42 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
43 unsigned long timestamp;
46 #define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */
47 #define NFS_ATTR_FATTR 0x0002 /* post-op attributes */
48 #define NFS_ATTR_FATTR_V3 0x0004 /* NFSv3 attributes */
49 #define NFS_ATTR_FATTR_V4 0x0008
50 #define NFS_ATTR_PRE_CHANGE 0x0010
53 * Info on the file system
56 struct nfs_fattr *fattr; /* Post-op attributes */
57 __u32 rtmax; /* max. read transfer size */
58 __u32 rtpref; /* pref. read transfer size */
59 __u32 rtmult; /* reads should be multiple of this */
60 __u32 wtmax; /* max. write transfer size */
61 __u32 wtpref; /* pref. write transfer size */
62 __u32 wtmult; /* writes should be multiple of this */
63 __u32 dtpref; /* pref. readdir transfer size */
65 __u32 lease_time; /* in seconds */
69 struct nfs_fattr *fattr; /* Post-op attributes */
70 __u64 tbytes; /* total size in bytes */
71 __u64 fbytes; /* # of free bytes */
72 __u64 abytes; /* # of bytes available to user */
73 __u64 tfiles; /* # of files */
74 __u64 ffiles; /* # of free files */
75 __u64 afiles; /* # of files available to user */
79 __u32 tsize; /* Server transfer size */
80 __u32 bsize; /* Filesystem block size */
81 __u32 blocks; /* No. of "bsize" blocks on filesystem */
82 __u32 bfree; /* No. of free "bsize" blocks */
83 __u32 bavail; /* No. of available "bsize" blocks */
87 struct nfs_fattr *fattr; /* Post-op attributes */
88 __u32 max_link; /* max # of hard links */
89 __u32 max_namelen; /* max name length */
92 struct nfs4_change_info {
99 * Arguments to the open call.
101 struct nfs_openargs {
102 const struct nfs_fh * fh;
108 struct iattr * attrs; /* UNCHECKED, GUARDED */
109 nfs4_verifier verifier; /* EXCLUSIVE */
110 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
111 int delegation_type; /* CLAIM_PREVIOUS */
113 const struct qstr * name;
114 const struct nfs_server *server; /* Needed for ID mapping */
120 nfs4_stateid stateid;
122 struct nfs4_change_info cinfo;
124 struct nfs_fattr * f_attr;
125 const struct nfs_server *server;
127 nfs4_stateid delegation;
133 * Arguments to the open_confirm call.
135 struct nfs_open_confirmargs {
136 const struct nfs_fh * fh;
137 nfs4_stateid stateid;
141 struct nfs_open_confirmres {
142 nfs4_stateid stateid;
146 * Arguments to the close call.
148 struct nfs_closeargs {
150 nfs4_stateid stateid;
155 struct nfs_closeres {
156 nfs4_stateid stateid;
159 * * Arguments to the lock,lockt, and locku call.
166 struct nfs_open_to_lock {
168 nfs4_stateid open_stateid;
170 struct nfs_lowner lock_owner;
173 struct nfs_exist_lock {
174 nfs4_stateid stateid;
178 struct nfs_lock_opargs {
180 __u32 new_lock_owner;
182 struct nfs_open_to_lock *open_lock;
183 struct nfs_exist_lock *exist_lock;
187 struct nfs_locku_opargs {
189 nfs4_stateid stateid;
192 struct nfs_lockargs {
198 struct nfs_lock_opargs *lock; /* LOCK */
199 struct nfs_lowner *lockt; /* LOCKT */
200 struct nfs_locku_opargs *locku; /* LOCKU */
204 struct nfs_lock_denied {
208 struct nfs_lowner owner;
213 nfs4_stateid stateid;/* LOCK success, LOCKU */
214 struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
216 const struct nfs_server * server;
219 struct nfs4_delegreturnargs {
220 const struct nfs_fh *fhandle;
221 const nfs4_stateid *stateid;
225 * Arguments to the read call.
228 #define NFS_READ_MAXIOV (9U)
229 #if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
230 #error "NFS_READ_MAXIOV is too large"
233 struct nfs_readargs {
235 struct nfs_open_context *context;
239 struct page ** pages;
243 struct nfs_fattr * fattr;
249 * Arguments to the write call.
251 #define NFS_WRITE_MAXIOV (9U)
252 #if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
253 #error "NFS_WRITE_MAXIOV is too large"
256 struct nfs_writeargs {
258 struct nfs_open_context *context;
261 enum nfs3_stable_how stable;
263 struct page ** pages;
266 struct nfs_writeverf {
267 enum nfs3_stable_how committed;
271 struct nfs_writeres {
272 struct nfs_fattr * fattr;
273 struct nfs_writeverf * verf;
278 * Argument struct for decode_entry function
288 struct nfs_fattr * fattr;
292 * The following types are for NFSv2 only.
294 struct nfs_sattrargs {
296 struct iattr * sattr;
299 struct nfs_diropargs {
305 struct nfs_createargs {
309 struct iattr * sattr;
312 struct nfs_renameargs {
313 struct nfs_fh * fromfh;
314 const char * fromname;
315 unsigned int fromlen;
316 struct nfs_fh * tofh;
321 struct nfs_setattrargs {
323 nfs4_stateid stateid;
325 const struct nfs_server * server; /* Needed for name mapping */
329 struct nfs_setaclargs {
332 unsigned int acl_pgbase;
333 struct page ** acl_pages;
336 struct nfs_getaclargs {
339 unsigned int acl_pgbase;
340 struct page ** acl_pages;
343 struct nfs_setattrres {
344 struct nfs_fattr * fattr;
345 const struct nfs_server * server;
348 struct nfs_linkargs {
349 struct nfs_fh * fromfh;
350 struct nfs_fh * tofh;
355 struct nfs_symlinkargs {
356 struct nfs_fh * fromfh;
357 const char * fromname;
358 unsigned int fromlen;
361 struct iattr * sattr;
364 struct nfs_readdirargs {
368 struct page ** pages;
373 struct nfs_fattr * fattr;
376 struct nfs_readlinkargs {
380 struct page ** pages;
383 struct nfs3_sattrargs {
385 struct iattr * sattr;
387 struct timespec guardtime;
390 struct nfs3_diropargs {
396 struct nfs3_accessargs {
401 struct nfs3_createargs {
405 struct iattr * sattr;
406 enum nfs3_createmode createmode;
410 struct nfs3_mkdirargs {
414 struct iattr * sattr;
417 struct nfs3_symlinkargs {
418 struct nfs_fh * fromfh;
419 const char * fromname;
420 unsigned int fromlen;
423 struct iattr * sattr;
426 struct nfs3_mknodargs {
430 enum nfs3_ftype type;
431 struct iattr * sattr;
435 struct nfs3_renameargs {
436 struct nfs_fh * fromfh;
437 const char * fromname;
438 unsigned int fromlen;
439 struct nfs_fh * tofh;
444 struct nfs3_linkargs {
445 struct nfs_fh * fromfh;
446 struct nfs_fh * tofh;
451 struct nfs3_readdirargs {
457 struct page ** pages;
460 struct nfs3_diropres {
461 struct nfs_fattr * dir_attr;
463 struct nfs_fattr * fattr;
466 struct nfs3_accessres {
467 struct nfs_fattr * fattr;
471 struct nfs3_readlinkargs {
475 struct page ** pages;
478 struct nfs3_renameres {
479 struct nfs_fattr * fromattr;
480 struct nfs_fattr * toattr;
483 struct nfs3_linkres {
484 struct nfs_fattr * dir_attr;
485 struct nfs_fattr * fattr;
488 struct nfs3_readdirres {
489 struct nfs_fattr * dir_attr;
496 typedef u64 clientid4;
498 struct nfs4_accessargs {
499 const struct nfs_fh * fh;
503 struct nfs4_accessres {
508 struct nfs4_create_arg {
511 struct qstr * symlink; /* NF4LNK */
515 } device; /* NF4BLK, NF4CHR */
517 const struct qstr * name;
518 const struct nfs_server * server;
519 const struct iattr * attrs;
520 const struct nfs_fh * dir_fh;
524 struct nfs4_create_res {
525 const struct nfs_server * server;
527 struct nfs_fattr * fattr;
528 struct nfs4_change_info dir_cinfo;
531 struct nfs4_fsinfo_arg {
532 const struct nfs_fh * fh;
536 struct nfs4_getattr_arg {
537 const struct nfs_fh * fh;
541 struct nfs4_getattr_res {
542 const struct nfs_server * server;
543 struct nfs_fattr * fattr;
546 struct nfs4_link_arg {
547 const struct nfs_fh * fh;
548 const struct nfs_fh * dir_fh;
549 const struct qstr * name;
552 struct nfs4_lookup_arg {
553 const struct nfs_fh * dir_fh;
554 const struct qstr * name;
558 struct nfs4_lookup_res {
559 const struct nfs_server * server;
560 struct nfs_fattr * fattr;
564 struct nfs4_lookup_root_arg {
568 struct nfs4_pathconf_arg {
569 const struct nfs_fh * fh;
573 struct nfs4_readdir_arg {
574 const struct nfs_fh * fh;
576 nfs4_verifier verifier;
578 struct page ** pages; /* zero-copy data */
579 unsigned int pgbase; /* zero-copy data */
583 struct nfs4_readdir_res {
584 nfs4_verifier verifier;
588 struct nfs4_readlink {
589 const struct nfs_fh * fh;
591 unsigned int pglen; /* zero-copy data */
592 struct page ** pages; /* zero-copy data */
595 struct nfs4_remove_arg {
596 const struct nfs_fh * fh;
597 const struct qstr * name;
600 struct nfs4_rename_arg {
601 const struct nfs_fh * old_dir;
602 const struct nfs_fh * new_dir;
603 const struct qstr * old_name;
604 const struct qstr * new_name;
607 struct nfs4_rename_res {
608 struct nfs4_change_info old_cinfo;
609 struct nfs4_change_info new_cinfo;
612 struct nfs4_setclientid {
613 const nfs4_verifier * sc_verifier; /* request */
614 unsigned int sc_name_len;
615 char sc_name[32]; /* request */
616 u32 sc_prog; /* request */
617 unsigned int sc_netid_len;
618 char sc_netid[4]; /* request */
619 unsigned int sc_uaddr_len;
620 char sc_uaddr[24]; /* request */
621 u32 sc_cb_ident; /* request */
624 struct nfs4_statfs_arg {
625 const struct nfs_fh * fh;
629 struct nfs4_server_caps_res {
636 #endif /* CONFIG_NFS_V4 */
640 struct nfs_read_data {
642 struct rpc_task task;
644 struct rpc_cred *cred;
645 struct nfs_fattr fattr; /* fattr storage */
646 struct list_head pages; /* Coalesced read requests */
647 struct nfs_page *req; /* multi ops per nfs_page */
648 struct page *pagevec[NFS_READ_MAXIOV];
649 struct nfs_readargs args;
650 struct nfs_readres res;
652 unsigned long timestamp; /* For lease renewal */
654 void (*complete) (struct nfs_read_data *, int);
657 struct nfs_write_data {
659 struct rpc_task task;
661 struct rpc_cred *cred;
662 struct nfs_fattr fattr;
663 struct nfs_writeverf verf;
664 struct list_head pages; /* Coalesced requests we wish to flush */
665 struct nfs_page *req; /* multi ops per nfs_page */
666 struct page *pagevec[NFS_WRITE_MAXIOV];
667 struct nfs_writeargs args; /* argument struct */
668 struct nfs_writeres res; /* result struct */
670 unsigned long timestamp; /* For lease renewal */
672 void (*complete) (struct nfs_write_data *, int);
675 struct nfs_access_entry;
678 * RPC procedure vector for NFSv2/NFSv3 demuxing
681 int version; /* Protocol version */
682 struct dentry_operations *dentry_ops;
683 struct inode_operations *dir_inode_ops;
684 struct inode_operations *file_inode_ops;
686 int (*getroot) (struct nfs_server *, struct nfs_fh *,
687 struct nfs_fsinfo *);
688 int (*getattr) (struct nfs_server *, struct nfs_fh *,
690 int (*setattr) (struct dentry *, struct nfs_fattr *,
692 int (*lookup) (struct inode *, struct qstr *,
693 struct nfs_fh *, struct nfs_fattr *);
694 int (*access) (struct inode *, struct nfs_access_entry *);
695 int (*readlink)(struct inode *, struct page *, unsigned int,
697 int (*read) (struct nfs_read_data *);
698 int (*write) (struct nfs_write_data *);
699 int (*commit) (struct nfs_write_data *);
700 int (*create) (struct inode *, struct dentry *,
701 struct iattr *, int);
702 int (*remove) (struct inode *, struct qstr *);
703 int (*unlink_setup) (struct rpc_message *,
704 struct dentry *, struct qstr *);
705 int (*unlink_done) (struct dentry *, struct rpc_task *);
706 int (*rename) (struct inode *, struct qstr *,
707 struct inode *, struct qstr *);
708 int (*link) (struct inode *, struct inode *, struct qstr *);
709 int (*symlink) (struct inode *, struct qstr *, struct qstr *,
710 struct iattr *, struct nfs_fh *,
712 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
713 int (*rmdir) (struct inode *, struct qstr *);
714 int (*readdir) (struct dentry *, struct rpc_cred *,
715 u64, struct page *, unsigned int, int);
716 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
718 int (*statfs) (struct nfs_server *, struct nfs_fh *,
719 struct nfs_fsstat *);
720 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
721 struct nfs_fsinfo *);
722 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
723 struct nfs_pathconf *);
724 u32 * (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
725 void (*read_setup) (struct nfs_read_data *);
726 void (*write_setup) (struct nfs_write_data *, int how);
727 void (*commit_setup) (struct nfs_write_data *, int how);
728 int (*file_open) (struct inode *, struct file *);
729 int (*file_release) (struct inode *, struct file *);
730 int (*lock)(struct file *, int, struct file_lock *);
731 void (*clear_acl_cache)(struct inode *);
735 * NFS_CALL(getattr, inode, (fattr));
737 * NFS_PROTO(inode)->getattr(fattr);
739 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
742 * Function vectors etc. for the NFS client
744 extern struct nfs_rpc_ops nfs_v2_clientops;
745 extern struct nfs_rpc_ops nfs_v3_clientops;
746 extern struct nfs_rpc_ops nfs_v4_clientops;
747 extern struct rpc_version nfs_version2;
748 extern struct rpc_version nfs_version3;
749 extern struct rpc_version nfs_version4;