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 */
144 __u32 clone_blksize
; /* granularity of a CLONE operation */
148 struct nfs_fattr
*fattr
; /* Post-op attributes */
149 __u64 tbytes
; /* total size in bytes */
150 __u64 fbytes
; /* # of free bytes */
151 __u64 abytes
; /* # of bytes available to user */
152 __u64 tfiles
; /* # of files */
153 __u64 ffiles
; /* # of free files */
154 __u64 afiles
; /* # of files available to user */
158 __u32 tsize
; /* Server transfer size */
159 __u32 bsize
; /* Filesystem block size */
160 __u32 blocks
; /* No. of "bsize" blocks on filesystem */
161 __u32 bfree
; /* No. of free "bsize" blocks */
162 __u32 bavail
; /* No. of available "bsize" blocks */
165 struct nfs_pathconf
{
166 struct nfs_fattr
*fattr
; /* Post-op attributes */
167 __u32 max_link
; /* max # of hard links */
168 __u32 max_namelen
; /* max name length */
171 struct nfs4_change_info
{
179 /* nfs41 sessions channel attributes */
180 struct nfs4_channel_attrs
{
183 u32 max_resp_sz_cached
;
189 struct nfs4_sequence_args
{
190 struct nfs4_slot
*sa_slot
;
191 u8 sa_cache_this
: 1,
195 struct nfs4_sequence_res
{
196 struct nfs4_slot
*sr_slot
; /* slot used to send request */
197 unsigned long sr_timestamp
;
198 int sr_status
; /* sequence operation status */
200 u32 sr_highest_slotid
;
201 u32 sr_target_highest_slotid
;
204 struct nfs4_get_lease_time_args
{
205 struct nfs4_sequence_args la_seq_args
;
208 struct nfs4_get_lease_time_res
{
209 struct nfs4_sequence_res lr_seq_res
;
210 struct nfs_fsinfo
*lr_fsinfo
;
213 #define PNFS_LAYOUT_MAXSIZE 4096
215 struct nfs4_layoutdriver_data
{
221 struct pnfs_layout_range
{
227 struct nfs4_layoutget_args
{
228 struct nfs4_sequence_args seq_args
;
230 struct pnfs_layout_range range
;
234 struct nfs_open_context
*ctx
;
235 nfs4_stateid stateid
;
236 unsigned long timestamp
;
237 struct nfs4_layoutdriver_data layout
;
240 struct nfs4_layoutget_res
{
241 struct nfs4_sequence_res seq_res
;
242 __u32 return_on_close
;
243 struct pnfs_layout_range range
;
245 nfs4_stateid stateid
;
246 struct nfs4_layoutdriver_data
*layoutp
;
249 struct nfs4_layoutget
{
250 struct nfs4_layoutget_args args
;
251 struct nfs4_layoutget_res res
;
252 struct rpc_cred
*cred
;
257 struct nfs4_getdeviceinfo_args
{
258 struct nfs4_sequence_args seq_args
;
259 struct pnfs_device
*pdev
;
263 struct nfs4_getdeviceinfo_res
{
264 struct nfs4_sequence_res seq_res
;
265 struct pnfs_device
*pdev
;
269 struct nfs4_layoutcommit_args
{
270 struct nfs4_sequence_args seq_args
;
271 nfs4_stateid stateid
;
272 __u64 lastbytewritten
;
275 size_t layoutupdate_len
;
276 struct page
*layoutupdate_page
;
277 struct page
**layoutupdate_pages
;
280 struct nfs4_layoutcommit_res
{
281 struct nfs4_sequence_res seq_res
;
282 struct nfs_fattr
*fattr
;
283 const struct nfs_server
*server
;
287 struct nfs4_layoutcommit_data
{
288 struct rpc_task task
;
289 struct nfs_fattr fattr
;
290 struct list_head lseg_list
;
291 struct rpc_cred
*cred
;
293 struct nfs4_layoutcommit_args args
;
294 struct nfs4_layoutcommit_res res
;
297 struct nfs4_layoutreturn_args
{
298 struct nfs4_sequence_args seq_args
;
299 struct pnfs_layout_hdr
*layout
;
301 struct pnfs_layout_range range
;
302 nfs4_stateid stateid
;
306 struct nfs4_layoutreturn_res
{
307 struct nfs4_sequence_res seq_res
;
309 nfs4_stateid stateid
;
312 struct nfs4_layoutreturn
{
313 struct nfs4_layoutreturn_args args
;
314 struct nfs4_layoutreturn_res res
;
315 struct rpc_cred
*cred
;
316 struct nfs_client
*clp
;
321 #define PNFS_LAYOUTSTATS_MAXSIZE 256
323 struct nfs42_layoutstat_args
;
324 struct nfs42_layoutstat_devinfo
;
325 typedef void (*layoutstats_encode_t
)(struct xdr_stream
*,
326 struct nfs42_layoutstat_args
*,
327 struct nfs42_layoutstat_devinfo
*);
329 /* Per file per deviceid layoutstats */
330 struct nfs42_layoutstat_devinfo
{
331 struct nfs4_deviceid dev_id
;
339 layoutstats_encode_t layoutstats_encode
;
340 void *layout_private
;
343 struct nfs42_layoutstat_args
{
344 struct nfs4_sequence_args seq_args
;
347 nfs4_stateid stateid
;
349 struct nfs42_layoutstat_devinfo
*devinfo
;
352 struct nfs42_layoutstat_res
{
353 struct nfs4_sequence_res seq_res
;
358 struct nfs42_layoutstat_data
{
360 struct nfs42_layoutstat_args args
;
361 struct nfs42_layoutstat_res res
;
364 struct nfs42_clone_args
{
365 struct nfs4_sequence_args seq_args
;
366 struct nfs_fh
*src_fh
;
367 struct nfs_fh
*dst_fh
;
368 nfs4_stateid src_stateid
;
369 nfs4_stateid dst_stateid
;
373 const u32
*dst_bitmask
;
376 struct nfs42_clone_res
{
377 struct nfs4_sequence_res seq_res
;
378 unsigned int rpc_status
;
379 struct nfs_fattr
*dst_fattr
;
380 const struct nfs_server
*server
;
383 struct stateowner_id
{
389 * Arguments to the open call.
391 struct nfs_openargs
{
392 struct nfs4_sequence_args seq_args
;
393 const struct nfs_fh
* fh
;
394 struct nfs_seqid
* seqid
;
400 struct stateowner_id id
;
403 struct iattr
* attrs
; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
404 nfs4_verifier verifier
; /* EXCLUSIVE */
406 nfs4_stateid delegation
; /* CLAIM_DELEGATE_CUR */
407 fmode_t delegation_type
; /* CLAIM_PREVIOUS */
409 const struct qstr
* name
;
410 const struct nfs_server
*server
; /* Needed for ID mapping */
412 const u32
* open_bitmap
;
413 enum open_claim_type4 claim
;
414 enum createmode4 createmode
;
415 const struct nfs4_label
*label
;
419 struct nfs4_sequence_res seq_res
;
420 nfs4_stateid stateid
;
422 struct nfs4_change_info cinfo
;
424 struct nfs_fattr
* f_attr
;
425 struct nfs4_label
*f_label
;
426 struct nfs_seqid
* seqid
;
427 const struct nfs_server
*server
;
428 fmode_t delegation_type
;
429 nfs4_stateid delegation
;
430 unsigned long pagemod_limit
;
432 __u32 attrset
[NFS4_BITMAP_SIZE
];
433 struct nfs4_string
*owner
;
434 struct nfs4_string
*group_owner
;
435 __u32 access_request
;
436 __u32 access_supported
;
441 * Arguments to the open_confirm call.
443 struct nfs_open_confirmargs
{
444 struct nfs4_sequence_args seq_args
;
445 const struct nfs_fh
* fh
;
446 nfs4_stateid
* stateid
;
447 struct nfs_seqid
* seqid
;
450 struct nfs_open_confirmres
{
451 struct nfs4_sequence_res seq_res
;
452 nfs4_stateid stateid
;
453 struct nfs_seqid
* seqid
;
457 * Arguments to the close call.
459 struct nfs_closeargs
{
460 struct nfs4_sequence_args seq_args
;
462 nfs4_stateid stateid
;
463 struct nfs_seqid
* seqid
;
469 struct nfs_closeres
{
470 struct nfs4_sequence_res seq_res
;
471 nfs4_stateid stateid
;
472 struct nfs_fattr
* fattr
;
473 struct nfs_seqid
* seqid
;
474 const struct nfs_server
*server
;
477 * * Arguments to the lock,lockt, and locku call.
485 struct nfs_lock_args
{
486 struct nfs4_sequence_args seq_args
;
488 struct file_lock
* fl
;
489 struct nfs_seqid
* lock_seqid
;
490 nfs4_stateid lock_stateid
;
491 struct nfs_seqid
* open_seqid
;
492 nfs4_stateid open_stateid
;
493 struct nfs_lowner lock_owner
;
494 unsigned char block
: 1;
495 unsigned char reclaim
: 1;
496 unsigned char new_lock
: 1;
497 unsigned char new_lock_owner
: 1;
500 struct nfs_lock_res
{
501 struct nfs4_sequence_res seq_res
;
502 nfs4_stateid stateid
;
503 struct nfs_seqid
* lock_seqid
;
504 struct nfs_seqid
* open_seqid
;
507 struct nfs_locku_args
{
508 struct nfs4_sequence_args seq_args
;
510 struct file_lock
* fl
;
511 struct nfs_seqid
* seqid
;
512 nfs4_stateid stateid
;
515 struct nfs_locku_res
{
516 struct nfs4_sequence_res seq_res
;
517 nfs4_stateid stateid
;
518 struct nfs_seqid
* seqid
;
521 struct nfs_lockt_args
{
522 struct nfs4_sequence_args seq_args
;
524 struct file_lock
* fl
;
525 struct nfs_lowner lock_owner
;
528 struct nfs_lockt_res
{
529 struct nfs4_sequence_res seq_res
;
530 struct file_lock
* denied
; /* LOCK, LOCKT failed */
533 struct nfs_release_lockowner_args
{
534 struct nfs4_sequence_args seq_args
;
535 struct nfs_lowner lock_owner
;
538 struct nfs_release_lockowner_res
{
539 struct nfs4_sequence_res seq_res
;
542 struct nfs4_delegreturnargs
{
543 struct nfs4_sequence_args seq_args
;
544 const struct nfs_fh
*fhandle
;
545 const nfs4_stateid
*stateid
;
549 struct nfs4_delegreturnres
{
550 struct nfs4_sequence_res seq_res
;
551 struct nfs_fattr
* fattr
;
552 struct nfs_server
*server
;
556 * Arguments to the write call.
558 struct nfs_write_verifier
{
562 struct nfs_writeverf
{
563 struct nfs_write_verifier verifier
;
564 enum nfs3_stable_how committed
;
568 * Arguments shared by the read and write call.
570 struct nfs_pgio_args
{
571 struct nfs4_sequence_args seq_args
;
573 struct nfs_open_context
*context
;
574 struct nfs_lock_context
*lock_context
;
575 nfs4_stateid stateid
;
579 struct page
** pages
;
580 const u32
* bitmask
; /* used by write */
581 enum nfs3_stable_how stable
; /* used by write */
584 struct nfs_pgio_res
{
585 struct nfs4_sequence_res seq_res
;
586 struct nfs_fattr
* fattr
;
589 int eof
; /* used by read */
590 struct nfs_writeverf
* verf
; /* used by write */
591 const struct nfs_server
*server
; /* used by write */
596 * Arguments to the commit call.
598 struct nfs_commitargs
{
599 struct nfs4_sequence_args seq_args
;
606 struct nfs_commitres
{
607 struct nfs4_sequence_res seq_res
;
609 struct nfs_fattr
*fattr
;
610 struct nfs_writeverf
*verf
;
611 const struct nfs_server
*server
;
615 * Common arguments to the unlink call
617 struct nfs_removeargs
{
618 struct nfs4_sequence_args seq_args
;
619 const struct nfs_fh
*fh
;
623 struct nfs_removeres
{
624 struct nfs4_sequence_res seq_res
;
625 struct nfs_server
*server
;
626 struct nfs_fattr
*dir_attr
;
627 struct nfs4_change_info cinfo
;
631 * Common arguments to the rename call
633 struct nfs_renameargs
{
634 struct nfs4_sequence_args seq_args
;
635 const struct nfs_fh
*old_dir
;
636 const struct nfs_fh
*new_dir
;
637 const struct qstr
*old_name
;
638 const struct qstr
*new_name
;
641 struct nfs_renameres
{
642 struct nfs4_sequence_res seq_res
;
643 struct nfs_server
*server
;
644 struct nfs4_change_info old_cinfo
;
645 struct nfs_fattr
*old_fattr
;
646 struct nfs4_change_info new_cinfo
;
647 struct nfs_fattr
*new_fattr
;
650 /* parsed sec= options */
651 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
652 struct nfs_auth_info
{
653 unsigned int flavor_len
;
654 rpc_authflavor_t flavors
[NFS_AUTH_INFO_MAX_FLAVORS
];
658 * Argument struct for decode_entry function
668 struct nfs_fattr
* fattr
;
669 struct nfs4_label
*label
;
670 unsigned char d_type
;
671 struct nfs_server
* server
;
675 * The following types are for NFSv2 only.
677 struct nfs_sattrargs
{
679 struct iattr
* sattr
;
682 struct nfs_diropargs
{
688 struct nfs_createargs
{
692 struct iattr
* sattr
;
695 struct nfs_setattrargs
{
696 struct nfs4_sequence_args seq_args
;
698 nfs4_stateid stateid
;
700 const struct nfs_server
* server
; /* Needed for name mapping */
702 const struct nfs4_label
*label
;
705 struct nfs_setaclargs
{
706 struct nfs4_sequence_args seq_args
;
709 struct page
** acl_pages
;
712 struct nfs_setaclres
{
713 struct nfs4_sequence_res seq_res
;
716 struct nfs_getaclargs
{
717 struct nfs4_sequence_args seq_args
;
720 struct page
** acl_pages
;
723 /* getxattr ACL interface flags */
724 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
725 struct nfs_getaclres
{
726 struct nfs4_sequence_res seq_res
;
728 size_t acl_data_offset
;
730 struct page
* acl_scratch
;
733 struct nfs_setattrres
{
734 struct nfs4_sequence_res seq_res
;
735 struct nfs_fattr
* fattr
;
736 struct nfs4_label
*label
;
737 const struct nfs_server
* server
;
740 struct nfs_linkargs
{
741 struct nfs_fh
* fromfh
;
742 struct nfs_fh
* tofh
;
747 struct nfs_symlinkargs
{
748 struct nfs_fh
* fromfh
;
749 const char * fromname
;
750 unsigned int fromlen
;
751 struct page
** pages
;
752 unsigned int pathlen
;
753 struct iattr
* sattr
;
756 struct nfs_readdirargs
{
760 struct page
** pages
;
763 struct nfs3_getaclargs
{
766 struct page
** pages
;
769 struct nfs3_setaclargs
{
770 struct inode
* inode
;
772 struct posix_acl
* acl_access
;
773 struct posix_acl
* acl_default
;
776 struct page
** pages
;
781 struct nfs_fattr
* fattr
;
784 struct nfs_readlinkargs
{
788 struct page
** pages
;
791 struct nfs3_sattrargs
{
793 struct iattr
* sattr
;
795 struct timespec guardtime
;
798 struct nfs3_diropargs
{
804 struct nfs3_accessargs
{
809 struct nfs3_createargs
{
813 struct iattr
* sattr
;
814 enum nfs3_createmode createmode
;
818 struct nfs3_mkdirargs
{
822 struct iattr
* sattr
;
825 struct nfs3_symlinkargs
{
826 struct nfs_fh
* fromfh
;
827 const char * fromname
;
828 unsigned int fromlen
;
829 struct page
** pages
;
830 unsigned int pathlen
;
831 struct iattr
* sattr
;
834 struct nfs3_mknodargs
{
838 enum nfs3_ftype type
;
839 struct iattr
* sattr
;
843 struct nfs3_linkargs
{
844 struct nfs_fh
* fromfh
;
845 struct nfs_fh
* tofh
;
850 struct nfs3_readdirargs
{
856 struct page
** pages
;
859 struct nfs3_diropres
{
860 struct nfs_fattr
* dir_attr
;
862 struct nfs_fattr
* fattr
;
865 struct nfs3_accessres
{
866 struct nfs_fattr
* fattr
;
870 struct nfs3_readlinkargs
{
874 struct page
** pages
;
877 struct nfs3_linkres
{
878 struct nfs_fattr
* dir_attr
;
879 struct nfs_fattr
* fattr
;
882 struct nfs3_readdirres
{
883 struct nfs_fattr
* dir_attr
;
888 struct nfs3_getaclres
{
889 struct nfs_fattr
* fattr
;
891 unsigned int acl_access_count
;
892 unsigned int acl_default_count
;
893 struct posix_acl
* acl_access
;
894 struct posix_acl
* acl_default
;
897 #if IS_ENABLED(CONFIG_NFS_V4)
899 typedef u64 clientid4
;
901 struct nfs4_accessargs
{
902 struct nfs4_sequence_args seq_args
;
903 const struct nfs_fh
* fh
;
908 struct nfs4_accessres
{
909 struct nfs4_sequence_res seq_res
;
910 const struct nfs_server
* server
;
911 struct nfs_fattr
* fattr
;
916 struct nfs4_create_arg
{
917 struct nfs4_sequence_args seq_args
;
921 struct page
** pages
;
923 } symlink
; /* NF4LNK */
927 } device
; /* NF4BLK, NF4CHR */
929 const struct qstr
* name
;
930 const struct nfs_server
* server
;
931 const struct iattr
* attrs
;
932 const struct nfs_fh
* dir_fh
;
934 const struct nfs4_label
*label
;
937 struct nfs4_create_res
{
938 struct nfs4_sequence_res seq_res
;
939 const struct nfs_server
* server
;
941 struct nfs_fattr
* fattr
;
942 struct nfs4_label
*label
;
943 struct nfs4_change_info dir_cinfo
;
946 struct nfs4_fsinfo_arg
{
947 struct nfs4_sequence_args seq_args
;
948 const struct nfs_fh
* fh
;
952 struct nfs4_fsinfo_res
{
953 struct nfs4_sequence_res seq_res
;
954 struct nfs_fsinfo
*fsinfo
;
957 struct nfs4_getattr_arg
{
958 struct nfs4_sequence_args seq_args
;
959 const struct nfs_fh
* fh
;
963 struct nfs4_getattr_res
{
964 struct nfs4_sequence_res seq_res
;
965 const struct nfs_server
* server
;
966 struct nfs_fattr
* fattr
;
967 struct nfs4_label
*label
;
970 struct nfs4_link_arg
{
971 struct nfs4_sequence_args seq_args
;
972 const struct nfs_fh
* fh
;
973 const struct nfs_fh
* dir_fh
;
974 const struct qstr
* name
;
978 struct nfs4_link_res
{
979 struct nfs4_sequence_res seq_res
;
980 const struct nfs_server
* server
;
981 struct nfs_fattr
* fattr
;
982 struct nfs4_label
*label
;
983 struct nfs4_change_info cinfo
;
984 struct nfs_fattr
* dir_attr
;
988 struct nfs4_lookup_arg
{
989 struct nfs4_sequence_args seq_args
;
990 const struct nfs_fh
* dir_fh
;
991 const struct qstr
* name
;
995 struct nfs4_lookup_res
{
996 struct nfs4_sequence_res seq_res
;
997 const struct nfs_server
* server
;
998 struct nfs_fattr
* fattr
;
1000 struct nfs4_label
*label
;
1003 struct nfs4_lookup_root_arg
{
1004 struct nfs4_sequence_args seq_args
;
1005 const u32
* bitmask
;
1008 struct nfs4_pathconf_arg
{
1009 struct nfs4_sequence_args seq_args
;
1010 const struct nfs_fh
* fh
;
1011 const u32
* bitmask
;
1014 struct nfs4_pathconf_res
{
1015 struct nfs4_sequence_res seq_res
;
1016 struct nfs_pathconf
*pathconf
;
1019 struct nfs4_readdir_arg
{
1020 struct nfs4_sequence_args seq_args
;
1021 const struct nfs_fh
* fh
;
1023 nfs4_verifier verifier
;
1025 struct page
** pages
; /* zero-copy data */
1026 unsigned int pgbase
; /* zero-copy data */
1027 const u32
* bitmask
;
1031 struct nfs4_readdir_res
{
1032 struct nfs4_sequence_res seq_res
;
1033 nfs4_verifier verifier
;
1034 unsigned int pgbase
;
1037 struct nfs4_readlink
{
1038 struct nfs4_sequence_args seq_args
;
1039 const struct nfs_fh
* fh
;
1040 unsigned int pgbase
;
1041 unsigned int pglen
; /* zero-copy data */
1042 struct page
** pages
; /* zero-copy data */
1045 struct nfs4_readlink_res
{
1046 struct nfs4_sequence_res seq_res
;
1049 struct nfs4_setclientid
{
1050 const nfs4_verifier
* sc_verifier
;
1052 unsigned int sc_netid_len
;
1053 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
1054 unsigned int sc_uaddr_len
;
1055 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
1056 struct nfs_client
*sc_clnt
;
1057 struct rpc_cred
*sc_cred
;
1060 struct nfs4_setclientid_res
{
1062 nfs4_verifier confirm
;
1065 struct nfs4_statfs_arg
{
1066 struct nfs4_sequence_args seq_args
;
1067 const struct nfs_fh
* fh
;
1068 const u32
* bitmask
;
1071 struct nfs4_statfs_res
{
1072 struct nfs4_sequence_res seq_res
;
1073 struct nfs_fsstat
*fsstat
;
1076 struct nfs4_server_caps_arg
{
1077 struct nfs4_sequence_args seq_args
;
1078 struct nfs_fh
*fhandle
;
1079 const u32
* bitmask
;
1082 struct nfs4_server_caps_res
{
1083 struct nfs4_sequence_res seq_res
;
1084 u32 attr_bitmask
[3];
1085 u32 exclcreat_bitmask
[3];
1092 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1093 struct nfs4_pathname
{
1094 unsigned int ncomponents
;
1095 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1098 #define NFS4_FS_LOCATION_MAXSERVERS 10
1099 struct nfs4_fs_location
{
1100 unsigned int nservers
;
1101 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1102 struct nfs4_pathname rootpath
;
1105 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1106 struct nfs4_fs_locations
{
1107 struct nfs_fattr fattr
;
1108 const struct nfs_server
*server
;
1109 struct nfs4_pathname fs_path
;
1111 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1114 struct nfs4_fs_locations_arg
{
1115 struct nfs4_sequence_args seq_args
;
1116 const struct nfs_fh
*dir_fh
;
1117 const struct nfs_fh
*fh
;
1118 const struct qstr
*name
;
1122 unsigned char migration
:1, renew
:1;
1125 struct nfs4_fs_locations_res
{
1126 struct nfs4_sequence_res seq_res
;
1127 struct nfs4_fs_locations
*fs_locations
;
1128 unsigned char migration
:1, renew
:1;
1131 struct nfs4_secinfo4
{
1133 struct rpcsec_gss_info flavor_info
;
1136 struct nfs4_secinfo_flavors
{
1137 unsigned int num_flavors
;
1138 struct nfs4_secinfo4 flavors
[0];
1141 struct nfs4_secinfo_arg
{
1142 struct nfs4_sequence_args seq_args
;
1143 const struct nfs_fh
*dir_fh
;
1144 const struct qstr
*name
;
1147 struct nfs4_secinfo_res
{
1148 struct nfs4_sequence_res seq_res
;
1149 struct nfs4_secinfo_flavors
*flavors
;
1152 struct nfs4_fsid_present_arg
{
1153 struct nfs4_sequence_args seq_args
;
1154 const struct nfs_fh
*fh
;
1156 unsigned char renew
:1;
1159 struct nfs4_fsid_present_res
{
1160 struct nfs4_sequence_res seq_res
;
1162 unsigned char renew
:1;
1165 #endif /* CONFIG_NFS_V4 */
1172 #ifdef CONFIG_NFS_V4_1
1174 struct pnfs_commit_bucket
{
1175 struct list_head written
;
1176 struct list_head committing
;
1177 struct pnfs_layout_segment
*wlseg
;
1178 struct pnfs_layout_segment
*clseg
;
1179 struct nfs_writeverf direct_verf
;
1182 struct pnfs_ds_commit_info
{
1186 struct pnfs_commit_bucket
*buckets
;
1189 #define NFS4_OP_MAP_NUM_LONGS \
1190 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1191 #define NFS4_OP_MAP_NUM_WORDS \
1192 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1193 struct nfs4_op_map
{
1195 unsigned long longs
[NFS4_OP_MAP_NUM_LONGS
];
1196 u32 words
[NFS4_OP_MAP_NUM_WORDS
];
1200 struct nfs41_state_protection
{
1202 struct nfs4_op_map enforce
;
1203 struct nfs4_op_map allow
;
1206 struct nfs41_exchange_id_args
{
1207 struct nfs_client
*client
;
1208 nfs4_verifier
*verifier
;
1210 struct nfs41_state_protection state_protect
;
1213 struct nfs41_server_owner
{
1215 uint32_t major_id_sz
;
1216 char major_id
[NFS4_OPAQUE_LIMIT
];
1219 struct nfs41_server_scope
{
1220 uint32_t server_scope_sz
;
1221 char server_scope
[NFS4_OPAQUE_LIMIT
];
1224 struct nfs41_impl_id
{
1225 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1226 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1227 struct nfstime4 date
;
1230 struct nfs41_bind_conn_to_session_args
{
1231 struct nfs_client
*client
;
1232 struct nfs4_sessionid sessionid
;
1234 bool use_conn_in_rdma_mode
;
1237 struct nfs41_bind_conn_to_session_res
{
1238 struct nfs4_sessionid sessionid
;
1240 bool use_conn_in_rdma_mode
;
1243 struct nfs41_exchange_id_res
{
1247 struct nfs41_server_owner
*server_owner
;
1248 struct nfs41_server_scope
*server_scope
;
1249 struct nfs41_impl_id
*impl_id
;
1250 struct nfs41_state_protection state_protect
;
1253 struct nfs41_create_session_args
{
1254 struct nfs_client
*client
;
1258 uint32_t cb_program
;
1259 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1260 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1263 struct nfs41_create_session_res
{
1264 struct nfs4_sessionid sessionid
;
1267 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1268 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1271 struct nfs41_reclaim_complete_args
{
1272 struct nfs4_sequence_args seq_args
;
1273 /* In the future extend to include curr_fh for use with migration */
1274 unsigned char one_fs
:1;
1277 struct nfs41_reclaim_complete_res
{
1278 struct nfs4_sequence_res seq_res
;
1281 #define SECINFO_STYLE_CURRENT_FH 0
1282 #define SECINFO_STYLE_PARENT 1
1283 struct nfs41_secinfo_no_name_args
{
1284 struct nfs4_sequence_args seq_args
;
1288 struct nfs41_test_stateid_args
{
1289 struct nfs4_sequence_args seq_args
;
1290 nfs4_stateid
*stateid
;
1293 struct nfs41_test_stateid_res
{
1294 struct nfs4_sequence_res seq_res
;
1295 unsigned int status
;
1298 struct nfs41_free_stateid_args
{
1299 struct nfs4_sequence_args seq_args
;
1300 nfs4_stateid stateid
;
1303 struct nfs41_free_stateid_res
{
1304 struct nfs4_sequence_res seq_res
;
1305 unsigned int status
;
1309 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info
*cinfo
)
1311 kfree(cinfo
->buckets
);
1316 struct pnfs_ds_commit_info
{
1320 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info
*cinfo
)
1324 #endif /* CONFIG_NFS_V4_1 */
1326 #ifdef CONFIG_NFS_V4_2
1327 struct nfs42_falloc_args
{
1328 struct nfs4_sequence_args seq_args
;
1330 struct nfs_fh
*falloc_fh
;
1331 nfs4_stateid falloc_stateid
;
1334 const u32
*falloc_bitmask
;
1337 struct nfs42_falloc_res
{
1338 struct nfs4_sequence_res seq_res
;
1339 unsigned int status
;
1341 struct nfs_fattr
*falloc_fattr
;
1342 const struct nfs_server
*falloc_server
;
1345 struct nfs42_seek_args
{
1346 struct nfs4_sequence_args seq_args
;
1348 struct nfs_fh
*sa_fh
;
1349 nfs4_stateid sa_stateid
;
1354 struct nfs42_seek_res
{
1355 struct nfs4_sequence_res seq_res
;
1356 unsigned int status
;
1365 #define NFS_PAGEVEC_SIZE (8U)
1367 struct nfs_page_array
{
1368 struct page
**pagevec
;
1369 unsigned int npages
; /* Max length of pagevec */
1370 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1373 /* used as flag bits in nfs_pgio_header */
1375 NFS_IOHDR_ERROR
= 0,
1380 struct nfs_pgio_header
{
1381 struct inode
*inode
;
1382 struct rpc_cred
*cred
;
1383 struct list_head pages
;
1384 struct nfs_page
*req
;
1385 struct nfs_writeverf verf
; /* Used for writes */
1386 struct pnfs_layout_segment
*lseg
;
1388 const struct rpc_call_ops
*mds_ops
;
1389 void (*release
) (struct nfs_pgio_header
*hdr
);
1390 const struct nfs_pgio_completion_ops
*completion_ops
;
1391 const struct nfs_rw_ops
*rw_ops
;
1392 struct nfs_direct_req
*dreq
;
1393 void *layout_private
;
1395 /* fields protected by lock */
1397 int error
; /* merge with pnfs_error */
1398 unsigned long good_bytes
; /* boundary of good data */
1399 unsigned long flags
;
1404 struct rpc_task task
;
1405 struct nfs_fattr fattr
;
1406 struct nfs_pgio_args args
; /* argument struct */
1407 struct nfs_pgio_res res
; /* result struct */
1408 unsigned long timestamp
; /* For lease renewal */
1409 int (*pgio_done_cb
)(struct rpc_task
*, struct nfs_pgio_header
*);
1410 __u64 mds_offset
; /* Filelayout dense stripe */
1411 struct nfs_page_array page_array
;
1412 struct nfs_client
*ds_clp
; /* pNFS data server */
1413 int ds_commit_idx
; /* ds index if ds_clp is set */
1414 int pgio_mirror_idx
;/* mirror index in pgio layer */
1417 struct nfs_mds_commit_info
{
1419 unsigned long ncommit
;
1420 struct list_head list
;
1423 struct nfs_commit_data
;
1425 struct nfs_commit_completion_ops
{
1426 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1427 void (*completion
) (struct nfs_commit_data
*data
);
1430 struct nfs_commit_info
{
1431 spinlock_t
*lock
; /* inode->i_lock */
1432 struct nfs_mds_commit_info
*mds
;
1433 struct pnfs_ds_commit_info
*ds
;
1434 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1435 const struct nfs_commit_completion_ops
*completion_ops
;
1438 struct nfs_commit_data
{
1439 struct rpc_task task
;
1440 struct inode
*inode
;
1441 struct rpc_cred
*cred
;
1442 struct nfs_fattr fattr
;
1443 struct nfs_writeverf verf
;
1444 struct list_head pages
; /* Coalesced requests we wish to flush */
1445 struct list_head list
; /* lists of struct nfs_write_data */
1446 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1447 struct nfs_commitargs args
; /* argument struct */
1448 struct nfs_commitres res
; /* result struct */
1449 struct nfs_open_context
*context
;
1450 struct pnfs_layout_segment
*lseg
;
1451 struct nfs_client
*ds_clp
; /* pNFS data server */
1452 int ds_commit_index
;
1454 const struct rpc_call_ops
*mds_ops
;
1455 const struct nfs_commit_completion_ops
*completion_ops
;
1456 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1459 struct nfs_pgio_completion_ops
{
1460 void (*error_cleanup
)(struct list_head
*head
);
1461 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1462 void (*completion
)(struct nfs_pgio_header
*hdr
);
1465 struct nfs_unlinkdata
{
1466 struct hlist_node list
;
1467 struct nfs_removeargs args
;
1468 struct nfs_removeres res
;
1470 struct rpc_cred
*cred
;
1471 struct nfs_fattr dir_attr
;
1475 struct nfs_renamedata
{
1476 struct nfs_renameargs args
;
1477 struct nfs_renameres res
;
1478 struct rpc_cred
*cred
;
1479 struct inode
*old_dir
;
1480 struct dentry
*old_dentry
;
1481 struct nfs_fattr old_fattr
;
1482 struct inode
*new_dir
;
1483 struct dentry
*new_dentry
;
1484 struct nfs_fattr new_fattr
;
1485 void (*complete
)(struct rpc_task
*, struct nfs_renamedata
*);
1489 struct nfs_access_entry
;
1492 struct nfs_subversion
;
1493 struct nfs_mount_info
;
1494 struct nfs_client_initdata
;
1495 struct nfs_pageio_descriptor
;
1498 * RPC procedure vector for NFSv2/NFSv3 demuxing
1500 struct nfs_rpc_ops
{
1501 u32 version
; /* Protocol version */
1502 const struct dentry_operations
*dentry_ops
;
1503 const struct inode_operations
*dir_inode_ops
;
1504 const struct inode_operations
*file_inode_ops
;
1505 const struct file_operations
*file_ops
;
1507 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1508 struct nfs_fsinfo
*);
1509 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1510 struct nfs_fh
*, struct nfs_fattr
*);
1511 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1512 struct nfs_subversion
*);
1513 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1514 struct nfs_fattr
*, struct nfs4_label
*);
1515 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1517 int (*lookup
) (struct inode
*, struct qstr
*,
1518 struct nfs_fh
*, struct nfs_fattr
*,
1519 struct nfs4_label
*);
1520 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1521 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1523 int (*create
) (struct inode
*, struct dentry
*,
1524 struct iattr
*, int);
1525 int (*remove
) (struct inode
*, struct qstr
*);
1526 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1527 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1528 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1529 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1530 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1531 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1532 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1533 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1534 unsigned int, struct iattr
*);
1535 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1536 int (*rmdir
) (struct inode
*, struct qstr
*);
1537 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1538 u64
, struct page
**, unsigned int, int);
1539 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1541 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1542 struct nfs_fsstat
*);
1543 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1544 struct nfs_fsinfo
*);
1545 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1546 struct nfs_pathconf
*);
1547 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1548 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1549 int (*pgio_rpc_prepare
)(struct rpc_task
*,
1550 struct nfs_pgio_header
*);
1551 void (*read_setup
)(struct nfs_pgio_header
*, struct rpc_message
*);
1552 int (*read_done
)(struct rpc_task
*, struct nfs_pgio_header
*);
1553 void (*write_setup
)(struct nfs_pgio_header
*, struct rpc_message
*);
1554 int (*write_done
)(struct rpc_task
*, struct nfs_pgio_header
*);
1555 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1556 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1557 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1558 int (*lock
)(struct file
*, int, struct file_lock
*);
1559 int (*lock_check_bounds
)(const struct file_lock
*);
1560 void (*clear_acl_cache
)(struct inode
*);
1561 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1562 struct inode
* (*open_context
) (struct inode
*dir
,
1563 struct nfs_open_context
*ctx
,
1565 struct iattr
*iattr
,
1567 int (*have_delegation
)(struct inode
*, fmode_t
);
1568 int (*return_delegation
)(struct inode
*);
1569 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1571 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1573 void (*free_client
) (struct nfs_client
*);
1574 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1575 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1576 struct nfs_fattr
*, rpc_authflavor_t
);
1580 * NFS_CALL(getattr, inode, (fattr));
1582 * NFS_PROTO(inode)->getattr(fattr);
1584 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1587 * Function vectors etc. for the NFS client
1589 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1590 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1591 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1592 extern const struct rpc_version nfs_version2
;
1593 extern const struct rpc_version nfs_version3
;
1594 extern const struct rpc_version nfs_version4
;
1596 extern const struct rpc_version nfsacl_version3
;
1597 extern const struct rpc_program nfsacl_program
;