1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/sunrpc/xprt.h>
5 #include <linux/nfsacl.h>
13 unsigned short valid; /* which fields are valid */
14 __u64 pre_size; /* pre_op_attr.size */
15 struct timespec pre_mtime; /* pre_op_attr.mtime */
16 struct timespec pre_ctime; /* pre_op_attr.ctime */
17 enum nfs_ftype type; /* always use NFSv2 types */
34 __u64 nfs3; /* also nfs2 */
35 struct nfs4_fsid nfs4;
38 struct timespec atime;
39 struct timespec mtime;
40 struct timespec ctime;
41 __u32 bitmap[2]; /* NFSv4 returned attribute bitmap */
42 __u64 change_attr; /* NFSv4 change attribute */
43 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
44 unsigned long timestamp;
47 #define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */
48 #define NFS_ATTR_FATTR 0x0002 /* post-op attributes */
49 #define NFS_ATTR_FATTR_V3 0x0004 /* NFSv3 attributes */
50 #define NFS_ATTR_FATTR_V4 0x0008
51 #define NFS_ATTR_PRE_CHANGE 0x0010
54 * Info on the file system
57 struct nfs_fattr *fattr; /* Post-op attributes */
58 __u32 rtmax; /* max. read transfer size */
59 __u32 rtpref; /* pref. read transfer size */
60 __u32 rtmult; /* reads should be multiple of this */
61 __u32 wtmax; /* max. write transfer size */
62 __u32 wtpref; /* pref. write transfer size */
63 __u32 wtmult; /* writes should be multiple of this */
64 __u32 dtpref; /* pref. readdir transfer size */
66 __u32 lease_time; /* in seconds */
70 struct nfs_fattr *fattr; /* Post-op attributes */
71 __u64 tbytes; /* total size in bytes */
72 __u64 fbytes; /* # of free bytes */
73 __u64 abytes; /* # of bytes available to user */
74 __u64 tfiles; /* # of files */
75 __u64 ffiles; /* # of free files */
76 __u64 afiles; /* # of files available to user */
80 __u32 tsize; /* Server transfer size */
81 __u32 bsize; /* Filesystem block size */
82 __u32 blocks; /* No. of "bsize" blocks on filesystem */
83 __u32 bfree; /* No. of free "bsize" blocks */
84 __u32 bavail; /* No. of available "bsize" blocks */
88 struct nfs_fattr *fattr; /* Post-op attributes */
89 __u32 max_link; /* max # of hard links */
90 __u32 max_namelen; /* max name length */
93 struct nfs4_change_info {
100 * Arguments to the open call.
102 struct nfs_openargs {
103 const struct nfs_fh * fh;
109 struct iattr * attrs; /* UNCHECKED, GUARDED */
110 nfs4_verifier verifier; /* EXCLUSIVE */
111 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
112 int delegation_type; /* CLAIM_PREVIOUS */
114 const struct qstr * name;
115 const struct nfs_server *server; /* Needed for ID mapping */
121 nfs4_stateid stateid;
123 struct nfs4_change_info cinfo;
125 struct nfs_fattr * f_attr;
126 const struct nfs_server *server;
128 nfs4_stateid delegation;
134 * Arguments to the open_confirm call.
136 struct nfs_open_confirmargs {
137 const struct nfs_fh * fh;
138 nfs4_stateid stateid;
142 struct nfs_open_confirmres {
143 nfs4_stateid stateid;
147 * Arguments to the close call.
149 struct nfs_closeargs {
151 nfs4_stateid stateid;
156 struct nfs_closeres {
157 nfs4_stateid stateid;
160 * * Arguments to the lock,lockt, and locku call.
167 struct nfs_open_to_lock {
169 nfs4_stateid open_stateid;
171 struct nfs_lowner lock_owner;
174 struct nfs_exist_lock {
175 nfs4_stateid stateid;
179 struct nfs_lock_opargs {
181 __u32 new_lock_owner;
183 struct nfs_open_to_lock *open_lock;
184 struct nfs_exist_lock *exist_lock;
188 struct nfs_locku_opargs {
190 nfs4_stateid stateid;
193 struct nfs_lockargs {
199 struct nfs_lock_opargs *lock; /* LOCK */
200 struct nfs_lowner *lockt; /* LOCKT */
201 struct nfs_locku_opargs *locku; /* LOCKU */
205 struct nfs_lock_denied {
209 struct nfs_lowner owner;
214 nfs4_stateid stateid;/* LOCK success, LOCKU */
215 struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
217 const struct nfs_server * server;
220 struct nfs4_delegreturnargs {
221 const struct nfs_fh *fhandle;
222 const nfs4_stateid *stateid;
226 * Arguments to the read call.
229 #define NFS_READ_MAXIOV (9U)
230 #if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
231 #error "NFS_READ_MAXIOV is too large"
234 struct nfs_readargs {
236 struct nfs_open_context *context;
240 struct page ** pages;
244 struct nfs_fattr * fattr;
250 * Arguments to the write call.
252 #define NFS_WRITE_MAXIOV (9U)
253 #if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
254 #error "NFS_WRITE_MAXIOV is too large"
257 struct nfs_writeargs {
259 struct nfs_open_context *context;
262 enum nfs3_stable_how stable;
264 struct page ** pages;
267 struct nfs_writeverf {
268 enum nfs3_stable_how committed;
272 struct nfs_writeres {
273 struct nfs_fattr * fattr;
274 struct nfs_writeverf * verf;
279 * Argument struct for decode_entry function
289 struct nfs_fattr * fattr;
293 * The following types are for NFSv2 only.
295 struct nfs_sattrargs {
297 struct iattr * sattr;
300 struct nfs_diropargs {
306 struct nfs_createargs {
310 struct iattr * sattr;
313 struct nfs_renameargs {
314 struct nfs_fh * fromfh;
315 const char * fromname;
316 unsigned int fromlen;
317 struct nfs_fh * tofh;
322 struct nfs_setattrargs {
324 nfs4_stateid stateid;
326 const struct nfs_server * server; /* Needed for name mapping */
330 struct nfs_setaclargs {
333 unsigned int acl_pgbase;
334 struct page ** acl_pages;
337 struct nfs_getaclargs {
340 unsigned int acl_pgbase;
341 struct page ** acl_pages;
344 struct nfs_setattrres {
345 struct nfs_fattr * fattr;
346 const struct nfs_server * server;
349 struct nfs_linkargs {
350 struct nfs_fh * fromfh;
351 struct nfs_fh * tofh;
356 struct nfs_symlinkargs {
357 struct nfs_fh * fromfh;
358 const char * fromname;
359 unsigned int fromlen;
362 struct iattr * sattr;
365 struct nfs_readdirargs {
369 struct page ** pages;
372 struct nfs3_getaclargs {
375 struct page ** pages;
378 struct nfs3_setaclargs {
379 struct inode * inode;
381 struct posix_acl * acl_access;
382 struct posix_acl * acl_default;
383 struct page ** pages;
388 struct nfs_fattr * fattr;
391 struct nfs_readlinkargs {
395 struct page ** pages;
398 struct nfs3_sattrargs {
400 struct iattr * sattr;
402 struct timespec guardtime;
405 struct nfs3_diropargs {
411 struct nfs3_accessargs {
416 struct nfs3_createargs {
420 struct iattr * sattr;
421 enum nfs3_createmode createmode;
425 struct nfs3_mkdirargs {
429 struct iattr * sattr;
432 struct nfs3_symlinkargs {
433 struct nfs_fh * fromfh;
434 const char * fromname;
435 unsigned int fromlen;
438 struct iattr * sattr;
441 struct nfs3_mknodargs {
445 enum nfs3_ftype type;
446 struct iattr * sattr;
450 struct nfs3_renameargs {
451 struct nfs_fh * fromfh;
452 const char * fromname;
453 unsigned int fromlen;
454 struct nfs_fh * tofh;
459 struct nfs3_linkargs {
460 struct nfs_fh * fromfh;
461 struct nfs_fh * tofh;
466 struct nfs3_readdirargs {
472 struct page ** pages;
475 struct nfs3_diropres {
476 struct nfs_fattr * dir_attr;
478 struct nfs_fattr * fattr;
481 struct nfs3_accessres {
482 struct nfs_fattr * fattr;
486 struct nfs3_readlinkargs {
490 struct page ** pages;
493 struct nfs3_renameres {
494 struct nfs_fattr * fromattr;
495 struct nfs_fattr * toattr;
498 struct nfs3_linkres {
499 struct nfs_fattr * dir_attr;
500 struct nfs_fattr * fattr;
503 struct nfs3_readdirres {
504 struct nfs_fattr * dir_attr;
509 struct nfs3_getaclres {
510 struct nfs_fattr * fattr;
512 unsigned int acl_access_count;
513 unsigned int acl_default_count;
514 struct posix_acl * acl_access;
515 struct posix_acl * acl_default;
520 typedef u64 clientid4;
522 struct nfs4_accessargs {
523 const struct nfs_fh * fh;
527 struct nfs4_accessres {
532 struct nfs4_create_arg {
535 struct qstr * symlink; /* NF4LNK */
539 } device; /* NF4BLK, NF4CHR */
541 const struct qstr * name;
542 const struct nfs_server * server;
543 const struct iattr * attrs;
544 const struct nfs_fh * dir_fh;
548 struct nfs4_create_res {
549 const struct nfs_server * server;
551 struct nfs_fattr * fattr;
552 struct nfs4_change_info dir_cinfo;
555 struct nfs4_fsinfo_arg {
556 const struct nfs_fh * fh;
560 struct nfs4_getattr_arg {
561 const struct nfs_fh * fh;
565 struct nfs4_getattr_res {
566 const struct nfs_server * server;
567 struct nfs_fattr * fattr;
570 struct nfs4_link_arg {
571 const struct nfs_fh * fh;
572 const struct nfs_fh * dir_fh;
573 const struct qstr * name;
576 struct nfs4_lookup_arg {
577 const struct nfs_fh * dir_fh;
578 const struct qstr * name;
582 struct nfs4_lookup_res {
583 const struct nfs_server * server;
584 struct nfs_fattr * fattr;
588 struct nfs4_lookup_root_arg {
592 struct nfs4_pathconf_arg {
593 const struct nfs_fh * fh;
597 struct nfs4_readdir_arg {
598 const struct nfs_fh * fh;
600 nfs4_verifier verifier;
602 struct page ** pages; /* zero-copy data */
603 unsigned int pgbase; /* zero-copy data */
607 struct nfs4_readdir_res {
608 nfs4_verifier verifier;
612 struct nfs4_readlink {
613 const struct nfs_fh * fh;
615 unsigned int pglen; /* zero-copy data */
616 struct page ** pages; /* zero-copy data */
619 struct nfs4_remove_arg {
620 const struct nfs_fh * fh;
621 const struct qstr * name;
624 struct nfs4_rename_arg {
625 const struct nfs_fh * old_dir;
626 const struct nfs_fh * new_dir;
627 const struct qstr * old_name;
628 const struct qstr * new_name;
631 struct nfs4_rename_res {
632 struct nfs4_change_info old_cinfo;
633 struct nfs4_change_info new_cinfo;
636 struct nfs4_setclientid {
637 const nfs4_verifier * sc_verifier; /* request */
638 unsigned int sc_name_len;
639 char sc_name[32]; /* request */
640 u32 sc_prog; /* request */
641 unsigned int sc_netid_len;
642 char sc_netid[4]; /* request */
643 unsigned int sc_uaddr_len;
644 char sc_uaddr[24]; /* request */
645 u32 sc_cb_ident; /* request */
648 struct nfs4_statfs_arg {
649 const struct nfs_fh * fh;
653 struct nfs4_server_caps_res {
660 #endif /* CONFIG_NFS_V4 */
664 struct nfs_read_data {
666 struct rpc_task task;
668 struct rpc_cred *cred;
669 struct nfs_fattr fattr; /* fattr storage */
670 struct list_head pages; /* Coalesced read requests */
671 struct nfs_page *req; /* multi ops per nfs_page */
672 struct page *pagevec[NFS_READ_MAXIOV];
673 struct nfs_readargs args;
674 struct nfs_readres res;
676 unsigned long timestamp; /* For lease renewal */
678 void (*complete) (struct nfs_read_data *, int);
681 struct nfs_write_data {
683 struct rpc_task task;
685 struct rpc_cred *cred;
686 struct nfs_fattr fattr;
687 struct nfs_writeverf verf;
688 struct list_head pages; /* Coalesced requests we wish to flush */
689 struct nfs_page *req; /* multi ops per nfs_page */
690 struct page *pagevec[NFS_WRITE_MAXIOV];
691 struct nfs_writeargs args; /* argument struct */
692 struct nfs_writeres res; /* result struct */
694 unsigned long timestamp; /* For lease renewal */
696 void (*complete) (struct nfs_write_data *, int);
699 struct nfs_access_entry;
702 * RPC procedure vector for NFSv2/NFSv3 demuxing
705 int version; /* Protocol version */
706 struct dentry_operations *dentry_ops;
707 struct inode_operations *dir_inode_ops;
708 struct inode_operations *file_inode_ops;
710 int (*getroot) (struct nfs_server *, struct nfs_fh *,
711 struct nfs_fsinfo *);
712 int (*getattr) (struct nfs_server *, struct nfs_fh *,
714 int (*setattr) (struct dentry *, struct nfs_fattr *,
716 int (*lookup) (struct inode *, struct qstr *,
717 struct nfs_fh *, struct nfs_fattr *);
718 int (*access) (struct inode *, struct nfs_access_entry *);
719 int (*readlink)(struct inode *, struct page *, unsigned int,
721 int (*read) (struct nfs_read_data *);
722 int (*write) (struct nfs_write_data *);
723 int (*commit) (struct nfs_write_data *);
724 int (*create) (struct inode *, struct dentry *,
725 struct iattr *, int);
726 int (*remove) (struct inode *, struct qstr *);
727 int (*unlink_setup) (struct rpc_message *,
728 struct dentry *, struct qstr *);
729 int (*unlink_done) (struct dentry *, struct rpc_task *);
730 int (*rename) (struct inode *, struct qstr *,
731 struct inode *, struct qstr *);
732 int (*link) (struct inode *, struct inode *, struct qstr *);
733 int (*symlink) (struct inode *, struct qstr *, struct qstr *,
734 struct iattr *, struct nfs_fh *,
736 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
737 int (*rmdir) (struct inode *, struct qstr *);
738 int (*readdir) (struct dentry *, struct rpc_cred *,
739 u64, struct page *, unsigned int, int);
740 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
742 int (*statfs) (struct nfs_server *, struct nfs_fh *,
743 struct nfs_fsstat *);
744 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
745 struct nfs_fsinfo *);
746 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
747 struct nfs_pathconf *);
748 u32 * (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
749 void (*read_setup) (struct nfs_read_data *);
750 void (*write_setup) (struct nfs_write_data *, int how);
751 void (*commit_setup) (struct nfs_write_data *, int how);
752 int (*file_open) (struct inode *, struct file *);
753 int (*file_release) (struct inode *, struct file *);
754 int (*lock)(struct file *, int, struct file_lock *);
755 void (*clear_acl_cache)(struct inode *);
759 * NFS_CALL(getattr, inode, (fattr));
761 * NFS_PROTO(inode)->getattr(fattr);
763 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
766 * Function vectors etc. for the NFS client
768 extern struct nfs_rpc_ops nfs_v2_clientops;
769 extern struct nfs_rpc_ops nfs_v3_clientops;
770 extern struct nfs_rpc_ops nfs_v4_clientops;
771 extern struct rpc_version nfs_version2;
772 extern struct rpc_version nfs_version3;
773 extern struct rpc_version nfs_version4;
775 extern struct rpc_version nfsacl_version3;
776 extern struct rpc_program nfsacl_program;