1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
28 * Helper for checking equality between 2 fsids.
30 static inline int nfs_fsid_equal(const struct nfs_fsid
*a
, const struct nfs_fsid
*b
)
32 return a
->major
== b
->major
&& a
->minor
== b
->minor
;
35 struct nfs4_threshold
{
45 unsigned int valid
; /* which fields are valid */
63 __u64 mounted_on_fileid
;
64 struct timespec atime
;
65 struct timespec mtime
;
66 struct timespec ctime
;
67 __u64 change_attr
; /* NFSv4 change attribute */
68 __u64 pre_change_attr
;/* pre-op NFSv4 change attribute */
69 __u64 pre_size
; /* pre_op_attr.size */
70 struct timespec pre_mtime
; /* pre_op_attr.mtime */
71 struct timespec pre_ctime
; /* pre_op_attr.ctime */
72 unsigned long time_start
;
73 unsigned long gencount
;
74 struct nfs4_string
*owner_name
;
75 struct nfs4_string
*group_name
;
76 struct nfs4_threshold
*mdsthreshold
; /* pNFS threshold hints */
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
128 * Info on the file system
131 struct nfs_fattr
*fattr
; /* Post-op attributes */
132 __u32 rtmax
; /* max. read transfer size */
133 __u32 rtpref
; /* pref. read transfer size */
134 __u32 rtmult
; /* reads should be multiple of this */
135 __u32 wtmax
; /* max. write transfer size */
136 __u32 wtpref
; /* pref. write transfer size */
137 __u32 wtmult
; /* writes should be multiple of this */
138 __u32 dtpref
; /* pref. readdir transfer size */
140 struct timespec time_delta
; /* server time granularity */
141 __u32 lease_time
; /* in seconds */
142 __u32 layouttype
; /* supported pnfs layout driver */
143 __u32 blksize
; /* preferred pnfs io block size */
147 struct nfs_fattr
*fattr
; /* Post-op attributes */
148 __u64 tbytes
; /* total size in bytes */
149 __u64 fbytes
; /* # of free bytes */
150 __u64 abytes
; /* # of bytes available to user */
151 __u64 tfiles
; /* # of files */
152 __u64 ffiles
; /* # of free files */
153 __u64 afiles
; /* # of files available to user */
157 __u32 tsize
; /* Server transfer size */
158 __u32 bsize
; /* Filesystem block size */
159 __u32 blocks
; /* No. of "bsize" blocks on filesystem */
160 __u32 bfree
; /* No. of free "bsize" blocks */
161 __u32 bavail
; /* No. of available "bsize" blocks */
164 struct nfs_pathconf
{
165 struct nfs_fattr
*fattr
; /* Post-op attributes */
166 __u32 max_link
; /* max # of hard links */
167 __u32 max_namelen
; /* max name length */
170 struct nfs4_change_info
{
178 /* nfs41 sessions channel attributes */
179 struct nfs4_channel_attrs
{
182 u32 max_resp_sz_cached
;
188 struct nfs4_sequence_args
{
189 struct nfs4_slot
*sa_slot
;
190 u8 sa_cache_this
: 1,
194 struct nfs4_sequence_res
{
195 struct nfs4_slot
*sr_slot
; /* slot used to send request */
196 unsigned long sr_timestamp
;
197 int sr_status
; /* sequence operation status */
199 u32 sr_highest_slotid
;
200 u32 sr_target_highest_slotid
;
203 struct nfs4_get_lease_time_args
{
204 struct nfs4_sequence_args la_seq_args
;
207 struct nfs4_get_lease_time_res
{
208 struct nfs4_sequence_res lr_seq_res
;
209 struct nfs_fsinfo
*lr_fsinfo
;
212 #define PNFS_LAYOUT_MAXSIZE 4096
214 struct nfs4_layoutdriver_data
{
220 struct pnfs_layout_range
{
226 struct nfs4_layoutget_args
{
227 struct nfs4_sequence_args seq_args
;
229 struct pnfs_layout_range range
;
233 struct nfs_open_context
*ctx
;
234 nfs4_stateid stateid
;
235 unsigned long timestamp
;
236 struct nfs4_layoutdriver_data layout
;
239 struct nfs4_layoutget_res
{
240 struct nfs4_sequence_res seq_res
;
241 __u32 return_on_close
;
242 struct pnfs_layout_range range
;
244 nfs4_stateid stateid
;
245 struct nfs4_layoutdriver_data
*layoutp
;
248 struct nfs4_layoutget
{
249 struct nfs4_layoutget_args args
;
250 struct nfs4_layoutget_res res
;
251 struct rpc_cred
*cred
;
255 struct nfs4_getdeviceinfo_args
{
256 struct nfs4_sequence_args seq_args
;
257 struct pnfs_device
*pdev
;
261 struct nfs4_getdeviceinfo_res
{
262 struct nfs4_sequence_res seq_res
;
263 struct pnfs_device
*pdev
;
267 struct nfs4_layoutcommit_args
{
268 struct nfs4_sequence_args seq_args
;
269 nfs4_stateid stateid
;
270 __u64 lastbytewritten
;
273 size_t layoutupdate_len
;
274 struct page
*layoutupdate_page
;
275 struct page
**layoutupdate_pages
;
278 struct nfs4_layoutcommit_res
{
279 struct nfs4_sequence_res seq_res
;
280 struct nfs_fattr
*fattr
;
281 const struct nfs_server
*server
;
285 struct nfs4_layoutcommit_data
{
286 struct rpc_task task
;
287 struct nfs_fattr fattr
;
288 struct list_head lseg_list
;
289 struct rpc_cred
*cred
;
291 struct nfs4_layoutcommit_args args
;
292 struct nfs4_layoutcommit_res res
;
295 struct nfs4_layoutreturn_args
{
296 struct nfs4_sequence_args seq_args
;
297 struct pnfs_layout_hdr
*layout
;
299 struct pnfs_layout_range range
;
300 nfs4_stateid stateid
;
304 struct nfs4_layoutreturn_res
{
305 struct nfs4_sequence_res seq_res
;
307 nfs4_stateid stateid
;
310 struct nfs4_layoutreturn
{
311 struct nfs4_layoutreturn_args args
;
312 struct nfs4_layoutreturn_res res
;
313 struct rpc_cred
*cred
;
314 struct nfs_client
*clp
;
319 struct stateowner_id
{
325 * Arguments to the open call.
327 struct nfs_openargs
{
328 struct nfs4_sequence_args seq_args
;
329 const struct nfs_fh
* fh
;
330 struct nfs_seqid
* seqid
;
336 struct stateowner_id id
;
339 struct iattr
* attrs
; /* UNCHECKED, GUARDED */
340 nfs4_verifier verifier
; /* EXCLUSIVE */
342 nfs4_stateid delegation
; /* CLAIM_DELEGATE_CUR */
343 fmode_t delegation_type
; /* CLAIM_PREVIOUS */
345 const struct qstr
* name
;
346 const struct nfs_server
*server
; /* Needed for ID mapping */
348 const u32
* open_bitmap
;
350 enum createmode4 createmode
;
351 const struct nfs4_label
*label
;
355 struct nfs4_sequence_res seq_res
;
356 nfs4_stateid stateid
;
358 struct nfs4_change_info cinfo
;
360 struct nfs_fattr
* f_attr
;
361 struct nfs4_label
*f_label
;
362 struct nfs_seqid
* seqid
;
363 const struct nfs_server
*server
;
364 fmode_t delegation_type
;
365 nfs4_stateid delegation
;
368 __u32 attrset
[NFS4_BITMAP_SIZE
];
369 struct nfs4_string
*owner
;
370 struct nfs4_string
*group_owner
;
371 __u32 access_request
;
372 __u32 access_supported
;
377 * Arguments to the open_confirm call.
379 struct nfs_open_confirmargs
{
380 struct nfs4_sequence_args seq_args
;
381 const struct nfs_fh
* fh
;
382 nfs4_stateid
* stateid
;
383 struct nfs_seqid
* seqid
;
386 struct nfs_open_confirmres
{
387 struct nfs4_sequence_res seq_res
;
388 nfs4_stateid stateid
;
389 struct nfs_seqid
* seqid
;
393 * Arguments to the close call.
395 struct nfs_closeargs
{
396 struct nfs4_sequence_args seq_args
;
398 nfs4_stateid stateid
;
399 struct nfs_seqid
* seqid
;
405 struct nfs_closeres
{
406 struct nfs4_sequence_res seq_res
;
407 nfs4_stateid stateid
;
408 struct nfs_fattr
* fattr
;
409 struct nfs_seqid
* seqid
;
410 const struct nfs_server
*server
;
413 * * Arguments to the lock,lockt, and locku call.
421 struct nfs_lock_args
{
422 struct nfs4_sequence_args seq_args
;
424 struct file_lock
* fl
;
425 struct nfs_seqid
* lock_seqid
;
426 nfs4_stateid lock_stateid
;
427 struct nfs_seqid
* open_seqid
;
428 nfs4_stateid open_stateid
;
429 struct nfs_lowner lock_owner
;
430 unsigned char block
: 1;
431 unsigned char reclaim
: 1;
432 unsigned char new_lock
: 1;
433 unsigned char new_lock_owner
: 1;
436 struct nfs_lock_res
{
437 struct nfs4_sequence_res seq_res
;
438 nfs4_stateid stateid
;
439 struct nfs_seqid
* lock_seqid
;
440 struct nfs_seqid
* open_seqid
;
443 struct nfs_locku_args
{
444 struct nfs4_sequence_args seq_args
;
446 struct file_lock
* fl
;
447 struct nfs_seqid
* seqid
;
448 nfs4_stateid stateid
;
451 struct nfs_locku_res
{
452 struct nfs4_sequence_res seq_res
;
453 nfs4_stateid stateid
;
454 struct nfs_seqid
* seqid
;
457 struct nfs_lockt_args
{
458 struct nfs4_sequence_args seq_args
;
460 struct file_lock
* fl
;
461 struct nfs_lowner lock_owner
;
464 struct nfs_lockt_res
{
465 struct nfs4_sequence_res seq_res
;
466 struct file_lock
* denied
; /* LOCK, LOCKT failed */
469 struct nfs_release_lockowner_args
{
470 struct nfs4_sequence_args seq_args
;
471 struct nfs_lowner lock_owner
;
474 struct nfs_release_lockowner_res
{
475 struct nfs4_sequence_res seq_res
;
478 struct nfs4_delegreturnargs
{
479 struct nfs4_sequence_args seq_args
;
480 const struct nfs_fh
*fhandle
;
481 const nfs4_stateid
*stateid
;
485 struct nfs4_delegreturnres
{
486 struct nfs4_sequence_res seq_res
;
487 struct nfs_fattr
* fattr
;
488 const struct nfs_server
*server
;
492 * Arguments to the write call.
494 struct nfs_write_verifier
{
498 struct nfs_writeverf
{
499 struct nfs_write_verifier verifier
;
500 enum nfs3_stable_how committed
;
504 * Arguments shared by the read and write call.
506 struct nfs_pgio_args
{
507 struct nfs4_sequence_args seq_args
;
509 struct nfs_open_context
*context
;
510 struct nfs_lock_context
*lock_context
;
511 nfs4_stateid stateid
;
515 struct page
** pages
;
516 const u32
* bitmask
; /* used by write */
517 enum nfs3_stable_how stable
; /* used by write */
520 struct nfs_pgio_res
{
521 struct nfs4_sequence_res seq_res
;
522 struct nfs_fattr
* fattr
;
525 int eof
; /* used by read */
526 struct nfs_writeverf
* verf
; /* used by write */
527 const struct nfs_server
*server
; /* used by write */
532 * Arguments to the commit call.
534 struct nfs_commitargs
{
535 struct nfs4_sequence_args seq_args
;
542 struct nfs_commitres
{
543 struct nfs4_sequence_res seq_res
;
545 struct nfs_fattr
*fattr
;
546 struct nfs_writeverf
*verf
;
547 const struct nfs_server
*server
;
551 * Common arguments to the unlink call
553 struct nfs_removeargs
{
554 struct nfs4_sequence_args seq_args
;
555 const struct nfs_fh
*fh
;
559 struct nfs_removeres
{
560 struct nfs4_sequence_res seq_res
;
561 const struct nfs_server
*server
;
562 struct nfs_fattr
*dir_attr
;
563 struct nfs4_change_info cinfo
;
567 * Common arguments to the rename call
569 struct nfs_renameargs
{
570 struct nfs4_sequence_args seq_args
;
571 const struct nfs_fh
*old_dir
;
572 const struct nfs_fh
*new_dir
;
573 const struct qstr
*old_name
;
574 const struct qstr
*new_name
;
577 struct nfs_renameres
{
578 struct nfs4_sequence_res seq_res
;
579 const struct nfs_server
*server
;
580 struct nfs4_change_info old_cinfo
;
581 struct nfs_fattr
*old_fattr
;
582 struct nfs4_change_info new_cinfo
;
583 struct nfs_fattr
*new_fattr
;
586 /* parsed sec= options */
587 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
588 struct nfs_auth_info
{
589 unsigned int flavor_len
;
590 rpc_authflavor_t flavors
[NFS_AUTH_INFO_MAX_FLAVORS
];
594 * Argument struct for decode_entry function
604 struct nfs_fattr
* fattr
;
605 struct nfs4_label
*label
;
606 unsigned char d_type
;
607 struct nfs_server
* server
;
611 * The following types are for NFSv2 only.
613 struct nfs_sattrargs
{
615 struct iattr
* sattr
;
618 struct nfs_diropargs
{
624 struct nfs_createargs
{
628 struct iattr
* sattr
;
631 struct nfs_setattrargs
{
632 struct nfs4_sequence_args seq_args
;
634 nfs4_stateid stateid
;
636 const struct nfs_server
* server
; /* Needed for name mapping */
638 const struct nfs4_label
*label
;
641 struct nfs_setaclargs
{
642 struct nfs4_sequence_args seq_args
;
645 unsigned int acl_pgbase
;
646 struct page
** acl_pages
;
649 struct nfs_setaclres
{
650 struct nfs4_sequence_res seq_res
;
653 struct nfs_getaclargs
{
654 struct nfs4_sequence_args seq_args
;
657 unsigned int acl_pgbase
;
658 struct page
** acl_pages
;
661 /* getxattr ACL interface flags */
662 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
663 struct nfs_getaclres
{
664 struct nfs4_sequence_res seq_res
;
666 size_t acl_data_offset
;
668 struct page
* acl_scratch
;
671 struct nfs_setattrres
{
672 struct nfs4_sequence_res seq_res
;
673 struct nfs_fattr
* fattr
;
674 struct nfs4_label
*label
;
675 const struct nfs_server
* server
;
678 struct nfs_linkargs
{
679 struct nfs_fh
* fromfh
;
680 struct nfs_fh
* tofh
;
685 struct nfs_symlinkargs
{
686 struct nfs_fh
* fromfh
;
687 const char * fromname
;
688 unsigned int fromlen
;
689 struct page
** pages
;
690 unsigned int pathlen
;
691 struct iattr
* sattr
;
694 struct nfs_readdirargs
{
698 struct page
** pages
;
701 struct nfs3_getaclargs
{
704 struct page
** pages
;
707 struct nfs3_setaclargs
{
708 struct inode
* inode
;
710 struct posix_acl
* acl_access
;
711 struct posix_acl
* acl_default
;
714 struct page
** pages
;
719 struct nfs_fattr
* fattr
;
722 struct nfs_readlinkargs
{
726 struct page
** pages
;
729 struct nfs3_sattrargs
{
731 struct iattr
* sattr
;
733 struct timespec guardtime
;
736 struct nfs3_diropargs
{
742 struct nfs3_accessargs
{
747 struct nfs3_createargs
{
751 struct iattr
* sattr
;
752 enum nfs3_createmode createmode
;
756 struct nfs3_mkdirargs
{
760 struct iattr
* sattr
;
763 struct nfs3_symlinkargs
{
764 struct nfs_fh
* fromfh
;
765 const char * fromname
;
766 unsigned int fromlen
;
767 struct page
** pages
;
768 unsigned int pathlen
;
769 struct iattr
* sattr
;
772 struct nfs3_mknodargs
{
776 enum nfs3_ftype type
;
777 struct iattr
* sattr
;
781 struct nfs3_linkargs
{
782 struct nfs_fh
* fromfh
;
783 struct nfs_fh
* tofh
;
788 struct nfs3_readdirargs
{
794 struct page
** pages
;
797 struct nfs3_diropres
{
798 struct nfs_fattr
* dir_attr
;
800 struct nfs_fattr
* fattr
;
803 struct nfs3_accessres
{
804 struct nfs_fattr
* fattr
;
808 struct nfs3_readlinkargs
{
812 struct page
** pages
;
815 struct nfs3_linkres
{
816 struct nfs_fattr
* dir_attr
;
817 struct nfs_fattr
* fattr
;
820 struct nfs3_readdirres
{
821 struct nfs_fattr
* dir_attr
;
826 struct nfs3_getaclres
{
827 struct nfs_fattr
* fattr
;
829 unsigned int acl_access_count
;
830 unsigned int acl_default_count
;
831 struct posix_acl
* acl_access
;
832 struct posix_acl
* acl_default
;
835 #if IS_ENABLED(CONFIG_NFS_V4)
837 typedef u64 clientid4
;
839 struct nfs4_accessargs
{
840 struct nfs4_sequence_args seq_args
;
841 const struct nfs_fh
* fh
;
846 struct nfs4_accessres
{
847 struct nfs4_sequence_res seq_res
;
848 const struct nfs_server
* server
;
849 struct nfs_fattr
* fattr
;
854 struct nfs4_create_arg
{
855 struct nfs4_sequence_args seq_args
;
859 struct page
** pages
;
861 } symlink
; /* NF4LNK */
865 } device
; /* NF4BLK, NF4CHR */
867 const struct qstr
* name
;
868 const struct nfs_server
* server
;
869 const struct iattr
* attrs
;
870 const struct nfs_fh
* dir_fh
;
872 const struct nfs4_label
*label
;
875 struct nfs4_create_res
{
876 struct nfs4_sequence_res seq_res
;
877 const struct nfs_server
* server
;
879 struct nfs_fattr
* fattr
;
880 struct nfs4_label
*label
;
881 struct nfs4_change_info dir_cinfo
;
884 struct nfs4_fsinfo_arg
{
885 struct nfs4_sequence_args seq_args
;
886 const struct nfs_fh
* fh
;
890 struct nfs4_fsinfo_res
{
891 struct nfs4_sequence_res seq_res
;
892 struct nfs_fsinfo
*fsinfo
;
895 struct nfs4_getattr_arg
{
896 struct nfs4_sequence_args seq_args
;
897 const struct nfs_fh
* fh
;
901 struct nfs4_getattr_res
{
902 struct nfs4_sequence_res seq_res
;
903 const struct nfs_server
* server
;
904 struct nfs_fattr
* fattr
;
905 struct nfs4_label
*label
;
908 struct nfs4_link_arg
{
909 struct nfs4_sequence_args seq_args
;
910 const struct nfs_fh
* fh
;
911 const struct nfs_fh
* dir_fh
;
912 const struct qstr
* name
;
916 struct nfs4_link_res
{
917 struct nfs4_sequence_res seq_res
;
918 const struct nfs_server
* server
;
919 struct nfs_fattr
* fattr
;
920 struct nfs4_label
*label
;
921 struct nfs4_change_info cinfo
;
922 struct nfs_fattr
* dir_attr
;
926 struct nfs4_lookup_arg
{
927 struct nfs4_sequence_args seq_args
;
928 const struct nfs_fh
* dir_fh
;
929 const struct qstr
* name
;
933 struct nfs4_lookup_res
{
934 struct nfs4_sequence_res seq_res
;
935 const struct nfs_server
* server
;
936 struct nfs_fattr
* fattr
;
938 struct nfs4_label
*label
;
941 struct nfs4_lookup_root_arg
{
942 struct nfs4_sequence_args seq_args
;
946 struct nfs4_pathconf_arg
{
947 struct nfs4_sequence_args seq_args
;
948 const struct nfs_fh
* fh
;
952 struct nfs4_pathconf_res
{
953 struct nfs4_sequence_res seq_res
;
954 struct nfs_pathconf
*pathconf
;
957 struct nfs4_readdir_arg
{
958 struct nfs4_sequence_args seq_args
;
959 const struct nfs_fh
* fh
;
961 nfs4_verifier verifier
;
963 struct page
** pages
; /* zero-copy data */
964 unsigned int pgbase
; /* zero-copy data */
969 struct nfs4_readdir_res
{
970 struct nfs4_sequence_res seq_res
;
971 nfs4_verifier verifier
;
975 struct nfs4_readlink
{
976 struct nfs4_sequence_args seq_args
;
977 const struct nfs_fh
* fh
;
979 unsigned int pglen
; /* zero-copy data */
980 struct page
** pages
; /* zero-copy data */
983 struct nfs4_readlink_res
{
984 struct nfs4_sequence_res seq_res
;
987 #define NFS4_SETCLIENTID_NAMELEN (127)
988 struct nfs4_setclientid
{
989 const nfs4_verifier
* sc_verifier
;
990 unsigned int sc_name_len
;
991 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
993 unsigned int sc_netid_len
;
994 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
995 unsigned int sc_uaddr_len
;
996 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
998 struct rpc_cred
*sc_cred
;
1001 struct nfs4_setclientid_res
{
1003 nfs4_verifier confirm
;
1006 struct nfs4_statfs_arg
{
1007 struct nfs4_sequence_args seq_args
;
1008 const struct nfs_fh
* fh
;
1009 const u32
* bitmask
;
1012 struct nfs4_statfs_res
{
1013 struct nfs4_sequence_res seq_res
;
1014 struct nfs_fsstat
*fsstat
;
1017 struct nfs4_server_caps_arg
{
1018 struct nfs4_sequence_args seq_args
;
1019 struct nfs_fh
*fhandle
;
1022 struct nfs4_server_caps_res
{
1023 struct nfs4_sequence_res seq_res
;
1024 u32 attr_bitmask
[3];
1031 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1032 struct nfs4_pathname
{
1033 unsigned int ncomponents
;
1034 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1037 #define NFS4_FS_LOCATION_MAXSERVERS 10
1038 struct nfs4_fs_location
{
1039 unsigned int nservers
;
1040 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1041 struct nfs4_pathname rootpath
;
1044 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1045 struct nfs4_fs_locations
{
1046 struct nfs_fattr fattr
;
1047 const struct nfs_server
*server
;
1048 struct nfs4_pathname fs_path
;
1050 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1053 struct nfs4_fs_locations_arg
{
1054 struct nfs4_sequence_args seq_args
;
1055 const struct nfs_fh
*dir_fh
;
1056 const struct nfs_fh
*fh
;
1057 const struct qstr
*name
;
1061 unsigned char migration
:1, renew
:1;
1064 struct nfs4_fs_locations_res
{
1065 struct nfs4_sequence_res seq_res
;
1066 struct nfs4_fs_locations
*fs_locations
;
1067 unsigned char migration
:1, renew
:1;
1070 struct nfs4_secinfo4
{
1072 struct rpcsec_gss_info flavor_info
;
1075 struct nfs4_secinfo_flavors
{
1076 unsigned int num_flavors
;
1077 struct nfs4_secinfo4 flavors
[0];
1080 struct nfs4_secinfo_arg
{
1081 struct nfs4_sequence_args seq_args
;
1082 const struct nfs_fh
*dir_fh
;
1083 const struct qstr
*name
;
1086 struct nfs4_secinfo_res
{
1087 struct nfs4_sequence_res seq_res
;
1088 struct nfs4_secinfo_flavors
*flavors
;
1091 struct nfs4_fsid_present_arg
{
1092 struct nfs4_sequence_args seq_args
;
1093 const struct nfs_fh
*fh
;
1095 unsigned char renew
:1;
1098 struct nfs4_fsid_present_res
{
1099 struct nfs4_sequence_res seq_res
;
1101 unsigned char renew
:1;
1104 #endif /* CONFIG_NFS_V4 */
1111 #ifdef CONFIG_NFS_V4_1
1113 struct pnfs_commit_bucket
{
1114 struct list_head written
;
1115 struct list_head committing
;
1116 struct pnfs_layout_segment
*wlseg
;
1117 struct pnfs_layout_segment
*clseg
;
1118 struct nfs_writeverf direct_verf
;
1121 struct pnfs_ds_commit_info
{
1125 struct pnfs_commit_bucket
*buckets
;
1128 #define NFS4_OP_MAP_NUM_LONGS \
1129 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1130 #define NFS4_OP_MAP_NUM_WORDS \
1131 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1132 struct nfs4_op_map
{
1134 unsigned long longs
[NFS4_OP_MAP_NUM_LONGS
];
1135 u32 words
[NFS4_OP_MAP_NUM_WORDS
];
1139 struct nfs41_state_protection
{
1141 struct nfs4_op_map enforce
;
1142 struct nfs4_op_map allow
;
1145 #define NFS4_EXCHANGE_ID_LEN (48)
1146 struct nfs41_exchange_id_args
{
1147 struct nfs_client
*client
;
1148 nfs4_verifier
*verifier
;
1149 unsigned int id_len
;
1150 char id
[NFS4_EXCHANGE_ID_LEN
];
1152 struct nfs41_state_protection state_protect
;
1155 struct nfs41_server_owner
{
1157 uint32_t major_id_sz
;
1158 char major_id
[NFS4_OPAQUE_LIMIT
];
1161 struct nfs41_server_scope
{
1162 uint32_t server_scope_sz
;
1163 char server_scope
[NFS4_OPAQUE_LIMIT
];
1166 struct nfs41_impl_id
{
1167 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1168 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1169 struct nfstime4 date
;
1172 struct nfs41_bind_conn_to_session_args
{
1173 struct nfs_client
*client
;
1174 struct nfs4_sessionid sessionid
;
1176 bool use_conn_in_rdma_mode
;
1179 struct nfs41_bind_conn_to_session_res
{
1180 struct nfs4_sessionid sessionid
;
1182 bool use_conn_in_rdma_mode
;
1185 struct nfs41_exchange_id_res
{
1189 struct nfs41_server_owner
*server_owner
;
1190 struct nfs41_server_scope
*server_scope
;
1191 struct nfs41_impl_id
*impl_id
;
1192 struct nfs41_state_protection state_protect
;
1195 struct nfs41_create_session_args
{
1196 struct nfs_client
*client
;
1200 uint32_t cb_program
;
1201 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1202 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1205 struct nfs41_create_session_res
{
1206 struct nfs4_sessionid sessionid
;
1209 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1210 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1213 struct nfs41_reclaim_complete_args
{
1214 struct nfs4_sequence_args seq_args
;
1215 /* In the future extend to include curr_fh for use with migration */
1216 unsigned char one_fs
:1;
1219 struct nfs41_reclaim_complete_res
{
1220 struct nfs4_sequence_res seq_res
;
1223 #define SECINFO_STYLE_CURRENT_FH 0
1224 #define SECINFO_STYLE_PARENT 1
1225 struct nfs41_secinfo_no_name_args
{
1226 struct nfs4_sequence_args seq_args
;
1230 struct nfs41_test_stateid_args
{
1231 struct nfs4_sequence_args seq_args
;
1232 nfs4_stateid
*stateid
;
1235 struct nfs41_test_stateid_res
{
1236 struct nfs4_sequence_res seq_res
;
1237 unsigned int status
;
1240 struct nfs41_free_stateid_args
{
1241 struct nfs4_sequence_args seq_args
;
1242 nfs4_stateid stateid
;
1245 struct nfs41_free_stateid_res
{
1246 struct nfs4_sequence_res seq_res
;
1247 unsigned int status
;
1251 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info
*cinfo
)
1253 kfree(cinfo
->buckets
);
1258 struct pnfs_ds_commit_info
{
1262 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info
*cinfo
)
1266 #endif /* CONFIG_NFS_V4_1 */
1268 #ifdef CONFIG_NFS_V4_2
1269 struct nfs42_falloc_args
{
1270 struct nfs4_sequence_args seq_args
;
1272 struct nfs_fh
*falloc_fh
;
1273 nfs4_stateid falloc_stateid
;
1276 const u32
*falloc_bitmask
;
1279 struct nfs42_falloc_res
{
1280 struct nfs4_sequence_res seq_res
;
1281 unsigned int status
;
1283 struct nfs_fattr
*falloc_fattr
;
1284 const struct nfs_server
*falloc_server
;
1287 struct nfs42_seek_args
{
1288 struct nfs4_sequence_args seq_args
;
1290 struct nfs_fh
*sa_fh
;
1291 nfs4_stateid sa_stateid
;
1296 struct nfs42_seek_res
{
1297 struct nfs4_sequence_res seq_res
;
1298 unsigned int status
;
1307 #define NFS_PAGEVEC_SIZE (8U)
1309 struct nfs_page_array
{
1310 struct page
**pagevec
;
1311 unsigned int npages
; /* Max length of pagevec */
1312 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1315 /* used as flag bits in nfs_pgio_header */
1317 NFS_IOHDR_ERROR
= 0,
1322 struct nfs_pgio_header
{
1323 struct inode
*inode
;
1324 struct rpc_cred
*cred
;
1325 struct list_head pages
;
1326 struct nfs_page
*req
;
1327 struct nfs_writeverf verf
; /* Used for writes */
1328 struct pnfs_layout_segment
*lseg
;
1330 const struct rpc_call_ops
*mds_ops
;
1331 void (*release
) (struct nfs_pgio_header
*hdr
);
1332 const struct nfs_pgio_completion_ops
*completion_ops
;
1333 const struct nfs_rw_ops
*rw_ops
;
1334 struct nfs_direct_req
*dreq
;
1335 void *layout_private
;
1337 /* fields protected by lock */
1339 int error
; /* merge with pnfs_error */
1340 unsigned long good_bytes
; /* boundary of good data */
1341 unsigned long flags
;
1346 struct rpc_task task
;
1347 struct nfs_fattr fattr
;
1348 struct nfs_pgio_args args
; /* argument struct */
1349 struct nfs_pgio_res res
; /* result struct */
1350 unsigned long timestamp
; /* For lease renewal */
1351 int (*pgio_done_cb
)(struct rpc_task
*, struct nfs_pgio_header
*);
1352 __u64 mds_offset
; /* Filelayout dense stripe */
1353 struct nfs_page_array page_array
;
1354 struct nfs_client
*ds_clp
; /* pNFS data server */
1355 int ds_commit_idx
; /* ds index if ds_clp is set */
1356 int pgio_mirror_idx
;/* mirror index in pgio layer */
1359 struct nfs_mds_commit_info
{
1361 unsigned long ncommit
;
1362 struct list_head list
;
1365 struct nfs_commit_data
;
1367 struct nfs_commit_completion_ops
{
1368 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1369 void (*completion
) (struct nfs_commit_data
*data
);
1372 struct nfs_commit_info
{
1373 spinlock_t
*lock
; /* inode->i_lock */
1374 struct nfs_mds_commit_info
*mds
;
1375 struct pnfs_ds_commit_info
*ds
;
1376 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1377 const struct nfs_commit_completion_ops
*completion_ops
;
1380 struct nfs_commit_data
{
1381 struct rpc_task task
;
1382 struct inode
*inode
;
1383 struct rpc_cred
*cred
;
1384 struct nfs_fattr fattr
;
1385 struct nfs_writeverf verf
;
1386 struct list_head pages
; /* Coalesced requests we wish to flush */
1387 struct list_head list
; /* lists of struct nfs_write_data */
1388 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1389 struct nfs_commitargs args
; /* argument struct */
1390 struct nfs_commitres res
; /* result struct */
1391 struct nfs_open_context
*context
;
1392 struct pnfs_layout_segment
*lseg
;
1393 struct nfs_client
*ds_clp
; /* pNFS data server */
1394 int ds_commit_index
;
1396 const struct rpc_call_ops
*mds_ops
;
1397 const struct nfs_commit_completion_ops
*completion_ops
;
1398 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1401 struct nfs_pgio_completion_ops
{
1402 void (*error_cleanup
)(struct list_head
*head
);
1403 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1404 void (*completion
)(struct nfs_pgio_header
*hdr
);
1407 struct nfs_unlinkdata
{
1408 struct hlist_node list
;
1409 struct nfs_removeargs args
;
1410 struct nfs_removeres res
;
1412 struct rpc_cred
*cred
;
1413 struct nfs_fattr dir_attr
;
1417 struct nfs_renamedata
{
1418 struct nfs_renameargs args
;
1419 struct nfs_renameres res
;
1420 struct rpc_cred
*cred
;
1421 struct inode
*old_dir
;
1422 struct dentry
*old_dentry
;
1423 struct nfs_fattr old_fattr
;
1424 struct inode
*new_dir
;
1425 struct dentry
*new_dentry
;
1426 struct nfs_fattr new_fattr
;
1427 void (*complete
)(struct rpc_task
*, struct nfs_renamedata
*);
1431 struct nfs_access_entry
;
1434 struct nfs_subversion
;
1435 struct nfs_mount_info
;
1436 struct nfs_client_initdata
;
1437 struct nfs_pageio_descriptor
;
1440 * RPC procedure vector for NFSv2/NFSv3 demuxing
1442 struct nfs_rpc_ops
{
1443 u32 version
; /* Protocol version */
1444 const struct dentry_operations
*dentry_ops
;
1445 const struct inode_operations
*dir_inode_ops
;
1446 const struct inode_operations
*file_inode_ops
;
1447 const struct file_operations
*file_ops
;
1449 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1450 struct nfs_fsinfo
*);
1451 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1452 struct nfs_fh
*, struct nfs_fattr
*);
1453 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1454 struct nfs_subversion
*);
1455 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1456 struct nfs_fattr
*, struct nfs4_label
*);
1457 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1459 int (*lookup
) (struct inode
*, struct qstr
*,
1460 struct nfs_fh
*, struct nfs_fattr
*,
1461 struct nfs4_label
*);
1462 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1463 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1465 int (*create
) (struct inode
*, struct dentry
*,
1466 struct iattr
*, int);
1467 int (*remove
) (struct inode
*, struct qstr
*);
1468 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1469 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1470 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1471 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1472 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1473 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1474 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1475 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1476 unsigned int, struct iattr
*);
1477 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1478 int (*rmdir
) (struct inode
*, struct qstr
*);
1479 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1480 u64
, struct page
**, unsigned int, int);
1481 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1483 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1484 struct nfs_fsstat
*);
1485 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1486 struct nfs_fsinfo
*);
1487 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1488 struct nfs_pathconf
*);
1489 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1490 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1491 int (*pgio_rpc_prepare
)(struct rpc_task
*,
1492 struct nfs_pgio_header
*);
1493 void (*read_setup
)(struct nfs_pgio_header
*, struct rpc_message
*);
1494 int (*read_done
)(struct rpc_task
*, struct nfs_pgio_header
*);
1495 void (*write_setup
)(struct nfs_pgio_header
*, struct rpc_message
*);
1496 int (*write_done
)(struct rpc_task
*, struct nfs_pgio_header
*);
1497 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1498 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1499 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1500 int (*lock
)(struct file
*, int, struct file_lock
*);
1501 int (*lock_check_bounds
)(const struct file_lock
*);
1502 void (*clear_acl_cache
)(struct inode
*);
1503 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1504 struct inode
* (*open_context
) (struct inode
*dir
,
1505 struct nfs_open_context
*ctx
,
1507 struct iattr
*iattr
,
1509 int (*have_delegation
)(struct inode
*, fmode_t
);
1510 int (*return_delegation
)(struct inode
*);
1511 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1513 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1515 void (*free_client
) (struct nfs_client
*);
1516 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1517 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1518 struct nfs_fattr
*, rpc_authflavor_t
);
1522 * NFS_CALL(getattr, inode, (fattr));
1524 * NFS_PROTO(inode)->getattr(fattr);
1526 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1529 * Function vectors etc. for the NFS client
1531 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1532 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1533 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1534 extern const struct rpc_version nfs_version2
;
1535 extern const struct rpc_version nfs_version3
;
1536 extern const struct rpc_version nfs_version4
;
1538 extern const struct rpc_version nfsacl_version3
;
1539 extern const struct rpc_program nfsacl_program
;