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_getdevicelist_args
{
256 struct nfs4_sequence_args seq_args
;
257 const struct nfs_fh
*fh
;
261 struct nfs4_getdevicelist_res
{
262 struct nfs4_sequence_res seq_res
;
263 struct pnfs_devicelist
*devlist
;
266 struct nfs4_getdeviceinfo_args
{
267 struct nfs4_sequence_args seq_args
;
268 struct pnfs_device
*pdev
;
271 struct nfs4_getdeviceinfo_res
{
272 struct nfs4_sequence_res seq_res
;
273 struct pnfs_device
*pdev
;
276 struct nfs4_layoutcommit_args
{
277 struct nfs4_sequence_args seq_args
;
278 nfs4_stateid stateid
;
279 __u64 lastbytewritten
;
284 struct nfs4_layoutcommit_res
{
285 struct nfs4_sequence_res seq_res
;
286 struct nfs_fattr
*fattr
;
287 const struct nfs_server
*server
;
291 struct nfs4_layoutcommit_data
{
292 struct rpc_task task
;
293 struct nfs_fattr fattr
;
294 struct list_head lseg_list
;
295 struct rpc_cred
*cred
;
296 struct nfs4_layoutcommit_args args
;
297 struct nfs4_layoutcommit_res res
;
300 struct nfs4_layoutreturn_args
{
301 struct nfs4_sequence_args seq_args
;
302 struct pnfs_layout_hdr
*layout
;
304 nfs4_stateid stateid
;
308 struct nfs4_layoutreturn_res
{
309 struct nfs4_sequence_res seq_res
;
311 nfs4_stateid stateid
;
314 struct nfs4_layoutreturn
{
315 struct nfs4_layoutreturn_args args
;
316 struct nfs4_layoutreturn_res res
;
317 struct rpc_cred
*cred
;
318 struct nfs_client
*clp
;
322 struct stateowner_id
{
328 * Arguments to the open call.
330 struct nfs_openargs
{
331 struct nfs4_sequence_args seq_args
;
332 const struct nfs_fh
* fh
;
333 struct nfs_seqid
* seqid
;
338 struct stateowner_id id
;
341 struct iattr
* attrs
; /* UNCHECKED, GUARDED */
342 nfs4_verifier verifier
; /* EXCLUSIVE */
344 nfs4_stateid delegation
; /* CLAIM_DELEGATE_CUR */
345 fmode_t delegation_type
; /* CLAIM_PREVIOUS */
347 const struct qstr
* name
;
348 const struct nfs_server
*server
; /* Needed for ID mapping */
350 const u32
* open_bitmap
;
352 enum createmode4 createmode
;
353 const struct nfs4_label
*label
;
357 struct nfs4_sequence_res seq_res
;
358 nfs4_stateid stateid
;
360 struct nfs4_change_info cinfo
;
362 struct nfs_fattr
* f_attr
;
363 struct nfs4_label
*f_label
;
364 struct nfs_seqid
* seqid
;
365 const struct nfs_server
*server
;
366 fmode_t delegation_type
;
367 nfs4_stateid delegation
;
370 __u32 attrset
[NFS4_BITMAP_SIZE
];
371 struct nfs4_string
*owner
;
372 struct nfs4_string
*group_owner
;
373 __u32 access_request
;
374 __u32 access_supported
;
379 * Arguments to the open_confirm call.
381 struct nfs_open_confirmargs
{
382 const struct nfs_fh
* fh
;
383 nfs4_stateid
* stateid
;
384 struct nfs_seqid
* seqid
;
387 struct nfs_open_confirmres
{
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
;
404 struct nfs_closeres
{
405 struct nfs4_sequence_res seq_res
;
406 nfs4_stateid stateid
;
407 struct nfs_fattr
* fattr
;
408 struct nfs_seqid
* seqid
;
409 const struct nfs_server
*server
;
412 * * Arguments to the lock,lockt, and locku call.
420 struct nfs_lock_args
{
421 struct nfs4_sequence_args seq_args
;
423 struct file_lock
* fl
;
424 struct nfs_seqid
* lock_seqid
;
425 nfs4_stateid
* lock_stateid
;
426 struct nfs_seqid
* open_seqid
;
427 nfs4_stateid
* open_stateid
;
428 struct nfs_lowner lock_owner
;
429 unsigned char block
: 1;
430 unsigned char reclaim
: 1;
431 unsigned char new_lock_owner
: 1;
434 struct nfs_lock_res
{
435 struct nfs4_sequence_res seq_res
;
436 nfs4_stateid stateid
;
437 struct nfs_seqid
* lock_seqid
;
438 struct nfs_seqid
* open_seqid
;
441 struct nfs_locku_args
{
442 struct nfs4_sequence_args seq_args
;
444 struct file_lock
* fl
;
445 struct nfs_seqid
* seqid
;
446 nfs4_stateid
* stateid
;
449 struct nfs_locku_res
{
450 struct nfs4_sequence_res seq_res
;
451 nfs4_stateid stateid
;
452 struct nfs_seqid
* seqid
;
455 struct nfs_lockt_args
{
456 struct nfs4_sequence_args seq_args
;
458 struct file_lock
* fl
;
459 struct nfs_lowner lock_owner
;
462 struct nfs_lockt_res
{
463 struct nfs4_sequence_res seq_res
;
464 struct file_lock
* denied
; /* LOCK, LOCKT failed */
467 struct nfs_release_lockowner_args
{
468 struct nfs_lowner lock_owner
;
471 struct nfs4_delegreturnargs
{
472 struct nfs4_sequence_args seq_args
;
473 const struct nfs_fh
*fhandle
;
474 const nfs4_stateid
*stateid
;
478 struct nfs4_delegreturnres
{
479 struct nfs4_sequence_res seq_res
;
480 struct nfs_fattr
* fattr
;
481 const struct nfs_server
*server
;
485 * Arguments to the read call.
487 struct nfs_readargs
{
488 struct nfs4_sequence_args seq_args
;
490 struct nfs_open_context
*context
;
491 struct nfs_lock_context
*lock_context
;
492 nfs4_stateid stateid
;
496 struct page
** pages
;
500 struct nfs4_sequence_res seq_res
;
501 struct nfs_fattr
* fattr
;
507 * Arguments to the write call.
509 struct nfs_writeargs
{
510 struct nfs4_sequence_args seq_args
;
512 struct nfs_open_context
*context
;
513 struct nfs_lock_context
*lock_context
;
514 nfs4_stateid stateid
;
517 enum nfs3_stable_how stable
;
519 struct page
** pages
;
523 struct nfs_write_verifier
{
527 struct nfs_writeverf
{
528 struct nfs_write_verifier verifier
;
529 enum nfs3_stable_how committed
;
532 struct nfs_writeres
{
533 struct nfs4_sequence_res seq_res
;
534 struct nfs_fattr
* fattr
;
535 struct nfs_writeverf
* verf
;
537 const struct nfs_server
*server
;
541 * Arguments to the commit call.
543 struct nfs_commitargs
{
544 struct nfs4_sequence_args seq_args
;
551 struct nfs_commitres
{
552 struct nfs4_sequence_res seq_res
;
553 struct nfs_fattr
*fattr
;
554 struct nfs_writeverf
*verf
;
555 const struct nfs_server
*server
;
559 * Common arguments to the unlink call
561 struct nfs_removeargs
{
562 struct nfs4_sequence_args seq_args
;
563 const struct nfs_fh
*fh
;
567 struct nfs_removeres
{
568 struct nfs4_sequence_res seq_res
;
569 const struct nfs_server
*server
;
570 struct nfs_fattr
*dir_attr
;
571 struct nfs4_change_info cinfo
;
575 * Common arguments to the rename call
577 struct nfs_renameargs
{
578 struct nfs4_sequence_args seq_args
;
579 const struct nfs_fh
*old_dir
;
580 const struct nfs_fh
*new_dir
;
581 const struct qstr
*old_name
;
582 const struct qstr
*new_name
;
585 struct nfs_renameres
{
586 struct nfs4_sequence_res seq_res
;
587 const struct nfs_server
*server
;
588 struct nfs4_change_info old_cinfo
;
589 struct nfs_fattr
*old_fattr
;
590 struct nfs4_change_info new_cinfo
;
591 struct nfs_fattr
*new_fattr
;
595 * Argument struct for decode_entry function
605 struct nfs_fattr
* fattr
;
606 struct nfs4_label
*label
;
607 unsigned char d_type
;
608 struct nfs_server
* server
;
612 * The following types are for NFSv2 only.
614 struct nfs_sattrargs
{
616 struct iattr
* sattr
;
619 struct nfs_diropargs
{
625 struct nfs_createargs
{
629 struct iattr
* sattr
;
632 struct nfs_setattrargs
{
633 struct nfs4_sequence_args seq_args
;
635 nfs4_stateid stateid
;
637 const struct nfs_server
* server
; /* Needed for name mapping */
639 const struct nfs4_label
*label
;
642 struct nfs_setaclargs
{
643 struct nfs4_sequence_args seq_args
;
646 unsigned int acl_pgbase
;
647 struct page
** acl_pages
;
650 struct nfs_setaclres
{
651 struct nfs4_sequence_res seq_res
;
654 struct nfs_getaclargs
{
655 struct nfs4_sequence_args seq_args
;
658 unsigned int acl_pgbase
;
659 struct page
** acl_pages
;
662 /* getxattr ACL interface flags */
663 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
664 struct nfs_getaclres
{
665 struct nfs4_sequence_res seq_res
;
667 size_t acl_data_offset
;
669 struct page
* acl_scratch
;
672 struct nfs_setattrres
{
673 struct nfs4_sequence_res seq_res
;
674 struct nfs_fattr
* fattr
;
675 struct nfs4_label
*label
;
676 const struct nfs_server
* server
;
679 struct nfs_linkargs
{
680 struct nfs_fh
* fromfh
;
681 struct nfs_fh
* tofh
;
686 struct nfs_symlinkargs
{
687 struct nfs_fh
* fromfh
;
688 const char * fromname
;
689 unsigned int fromlen
;
690 struct page
** pages
;
691 unsigned int pathlen
;
692 struct iattr
* sattr
;
695 struct nfs_readdirargs
{
699 struct page
** pages
;
702 struct nfs3_getaclargs
{
705 struct page
** pages
;
708 struct nfs3_setaclargs
{
709 struct inode
* inode
;
711 struct posix_acl
* acl_access
;
712 struct posix_acl
* acl_default
;
715 struct page
** pages
;
720 struct nfs_fattr
* fattr
;
723 struct nfs_readlinkargs
{
727 struct page
** pages
;
730 struct nfs3_sattrargs
{
732 struct iattr
* sattr
;
734 struct timespec guardtime
;
737 struct nfs3_diropargs
{
743 struct nfs3_accessargs
{
748 struct nfs3_createargs
{
752 struct iattr
* sattr
;
753 enum nfs3_createmode createmode
;
757 struct nfs3_mkdirargs
{
761 struct iattr
* sattr
;
764 struct nfs3_symlinkargs
{
765 struct nfs_fh
* fromfh
;
766 const char * fromname
;
767 unsigned int fromlen
;
768 struct page
** pages
;
769 unsigned int pathlen
;
770 struct iattr
* sattr
;
773 struct nfs3_mknodargs
{
777 enum nfs3_ftype type
;
778 struct iattr
* sattr
;
782 struct nfs3_linkargs
{
783 struct nfs_fh
* fromfh
;
784 struct nfs_fh
* tofh
;
789 struct nfs3_readdirargs
{
795 struct page
** pages
;
798 struct nfs3_diropres
{
799 struct nfs_fattr
* dir_attr
;
801 struct nfs_fattr
* fattr
;
804 struct nfs3_accessres
{
805 struct nfs_fattr
* fattr
;
809 struct nfs3_readlinkargs
{
813 struct page
** pages
;
816 struct nfs3_linkres
{
817 struct nfs_fattr
* dir_attr
;
818 struct nfs_fattr
* fattr
;
821 struct nfs3_readdirres
{
822 struct nfs_fattr
* dir_attr
;
827 struct nfs3_getaclres
{
828 struct nfs_fattr
* fattr
;
830 unsigned int acl_access_count
;
831 unsigned int acl_default_count
;
832 struct posix_acl
* acl_access
;
833 struct posix_acl
* acl_default
;
836 #if IS_ENABLED(CONFIG_NFS_V4)
838 typedef u64 clientid4
;
840 struct nfs4_accessargs
{
841 struct nfs4_sequence_args seq_args
;
842 const struct nfs_fh
* fh
;
847 struct nfs4_accessres
{
848 struct nfs4_sequence_res seq_res
;
849 const struct nfs_server
* server
;
850 struct nfs_fattr
* fattr
;
855 struct nfs4_create_arg
{
856 struct nfs4_sequence_args seq_args
;
860 struct page
** pages
;
862 } symlink
; /* NF4LNK */
866 } device
; /* NF4BLK, NF4CHR */
868 const struct qstr
* name
;
869 const struct nfs_server
* server
;
870 const struct iattr
* attrs
;
871 const struct nfs_fh
* dir_fh
;
873 const struct nfs4_label
*label
;
876 struct nfs4_create_res
{
877 struct nfs4_sequence_res seq_res
;
878 const struct nfs_server
* server
;
880 struct nfs_fattr
* fattr
;
881 struct nfs4_label
*label
;
882 struct nfs4_change_info dir_cinfo
;
885 struct nfs4_fsinfo_arg
{
886 struct nfs4_sequence_args seq_args
;
887 const struct nfs_fh
* fh
;
891 struct nfs4_fsinfo_res
{
892 struct nfs4_sequence_res seq_res
;
893 struct nfs_fsinfo
*fsinfo
;
896 struct nfs4_getattr_arg
{
897 struct nfs4_sequence_args seq_args
;
898 const struct nfs_fh
* fh
;
902 struct nfs4_getattr_res
{
903 struct nfs4_sequence_res seq_res
;
904 const struct nfs_server
* server
;
905 struct nfs_fattr
* fattr
;
906 struct nfs4_label
*label
;
909 struct nfs4_link_arg
{
910 struct nfs4_sequence_args seq_args
;
911 const struct nfs_fh
* fh
;
912 const struct nfs_fh
* dir_fh
;
913 const struct qstr
* name
;
917 struct nfs4_link_res
{
918 struct nfs4_sequence_res seq_res
;
919 const struct nfs_server
* server
;
920 struct nfs_fattr
* fattr
;
921 struct nfs4_label
*label
;
922 struct nfs4_change_info cinfo
;
923 struct nfs_fattr
* dir_attr
;
927 struct nfs4_lookup_arg
{
928 struct nfs4_sequence_args seq_args
;
929 const struct nfs_fh
* dir_fh
;
930 const struct qstr
* name
;
934 struct nfs4_lookup_res
{
935 struct nfs4_sequence_res seq_res
;
936 const struct nfs_server
* server
;
937 struct nfs_fattr
* fattr
;
939 struct nfs4_label
*label
;
942 struct nfs4_lookup_root_arg
{
943 struct nfs4_sequence_args seq_args
;
947 struct nfs4_pathconf_arg
{
948 struct nfs4_sequence_args seq_args
;
949 const struct nfs_fh
* fh
;
953 struct nfs4_pathconf_res
{
954 struct nfs4_sequence_res seq_res
;
955 struct nfs_pathconf
*pathconf
;
958 struct nfs4_readdir_arg
{
959 struct nfs4_sequence_args seq_args
;
960 const struct nfs_fh
* fh
;
962 nfs4_verifier verifier
;
964 struct page
** pages
; /* zero-copy data */
965 unsigned int pgbase
; /* zero-copy data */
970 struct nfs4_readdir_res
{
971 struct nfs4_sequence_res seq_res
;
972 nfs4_verifier verifier
;
976 struct nfs4_readlink
{
977 struct nfs4_sequence_args seq_args
;
978 const struct nfs_fh
* fh
;
980 unsigned int pglen
; /* zero-copy data */
981 struct page
** pages
; /* zero-copy data */
984 struct nfs4_readlink_res
{
985 struct nfs4_sequence_res seq_res
;
988 #define NFS4_SETCLIENTID_NAMELEN (127)
989 struct nfs4_setclientid
{
990 const nfs4_verifier
* sc_verifier
;
991 unsigned int sc_name_len
;
992 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
994 unsigned int sc_netid_len
;
995 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
996 unsigned int sc_uaddr_len
;
997 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
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 qstr
*name
;
1061 struct nfs4_fs_locations_res
{
1062 struct nfs4_sequence_res seq_res
;
1063 struct nfs4_fs_locations
*fs_locations
;
1066 struct nfs4_secinfo4
{
1068 struct rpcsec_gss_info flavor_info
;
1071 struct nfs4_secinfo_flavors
{
1072 unsigned int num_flavors
;
1073 struct nfs4_secinfo4 flavors
[0];
1076 struct nfs4_secinfo_arg
{
1077 struct nfs4_sequence_args seq_args
;
1078 const struct nfs_fh
*dir_fh
;
1079 const struct qstr
*name
;
1082 struct nfs4_secinfo_res
{
1083 struct nfs4_sequence_res seq_res
;
1084 struct nfs4_secinfo_flavors
*flavors
;
1087 #endif /* CONFIG_NFS_V4 */
1094 #ifdef CONFIG_NFS_V4_1
1096 struct pnfs_commit_bucket
{
1097 struct list_head written
;
1098 struct list_head committing
;
1099 struct pnfs_layout_segment
*wlseg
;
1100 struct pnfs_layout_segment
*clseg
;
1103 struct pnfs_ds_commit_info
{
1107 struct pnfs_commit_bucket
*buckets
;
1110 #define NFS4_EXCHANGE_ID_LEN (48)
1111 struct nfs41_exchange_id_args
{
1112 struct nfs_client
*client
;
1113 nfs4_verifier
*verifier
;
1114 unsigned int id_len
;
1115 char id
[NFS4_EXCHANGE_ID_LEN
];
1119 struct nfs41_server_owner
{
1121 uint32_t major_id_sz
;
1122 char major_id
[NFS4_OPAQUE_LIMIT
];
1125 struct nfs41_server_scope
{
1126 uint32_t server_scope_sz
;
1127 char server_scope
[NFS4_OPAQUE_LIMIT
];
1130 struct nfs41_impl_id
{
1131 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1132 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1133 struct nfstime4 date
;
1136 struct nfs41_bind_conn_to_session_res
{
1137 struct nfs4_session
*session
;
1139 bool use_conn_in_rdma_mode
;
1142 struct nfs41_exchange_id_res
{
1146 struct nfs41_server_owner
*server_owner
;
1147 struct nfs41_server_scope
*server_scope
;
1148 struct nfs41_impl_id
*impl_id
;
1151 struct nfs41_create_session_args
{
1152 struct nfs_client
*client
;
1154 uint32_t cb_program
;
1155 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1156 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1159 struct nfs41_create_session_res
{
1160 struct nfs_client
*client
;
1163 struct nfs41_reclaim_complete_args
{
1164 struct nfs4_sequence_args seq_args
;
1165 /* In the future extend to include curr_fh for use with migration */
1166 unsigned char one_fs
:1;
1169 struct nfs41_reclaim_complete_res
{
1170 struct nfs4_sequence_res seq_res
;
1173 #define SECINFO_STYLE_CURRENT_FH 0
1174 #define SECINFO_STYLE_PARENT 1
1175 struct nfs41_secinfo_no_name_args
{
1176 struct nfs4_sequence_args seq_args
;
1180 struct nfs41_test_stateid_args
{
1181 struct nfs4_sequence_args seq_args
;
1182 nfs4_stateid
*stateid
;
1185 struct nfs41_test_stateid_res
{
1186 struct nfs4_sequence_res seq_res
;
1187 unsigned int status
;
1190 struct nfs41_free_stateid_args
{
1191 struct nfs4_sequence_args seq_args
;
1192 nfs4_stateid stateid
;
1195 struct nfs41_free_stateid_res
{
1196 struct nfs4_sequence_res seq_res
;
1197 unsigned int status
;
1202 struct pnfs_ds_commit_info
{
1205 #endif /* CONFIG_NFS_V4_1 */
1209 #define NFS_PAGEVEC_SIZE (8U)
1211 struct nfs_page_array
{
1212 struct page
**pagevec
;
1213 unsigned int npages
; /* Max length of pagevec */
1214 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1217 struct nfs_read_data
{
1218 struct nfs_pgio_header
*header
;
1219 struct list_head list
;
1220 struct rpc_task task
;
1221 struct nfs_fattr fattr
; /* fattr storage */
1222 struct nfs_readargs args
;
1223 struct nfs_readres res
;
1224 unsigned long timestamp
; /* For lease renewal */
1225 int (*read_done_cb
) (struct rpc_task
*task
, struct nfs_read_data
*data
);
1227 struct nfs_page_array pages
;
1228 struct nfs_client
*ds_clp
; /* pNFS data server */
1231 /* used as flag bits in nfs_pgio_header */
1233 NFS_IOHDR_ERROR
= 0,
1236 NFS_IOHDR_NEED_COMMIT
,
1237 NFS_IOHDR_NEED_RESCHED
,
1240 struct nfs_pgio_header
{
1241 struct inode
*inode
;
1242 struct rpc_cred
*cred
;
1243 struct list_head pages
;
1244 struct list_head rpc_list
;
1246 struct nfs_page
*req
;
1247 struct nfs_writeverf
*verf
;
1248 struct pnfs_layout_segment
*lseg
;
1250 const struct rpc_call_ops
*mds_ops
;
1251 void (*release
) (struct nfs_pgio_header
*hdr
);
1252 const struct nfs_pgio_completion_ops
*completion_ops
;
1253 struct nfs_direct_req
*dreq
;
1254 void *layout_private
;
1256 /* fields protected by lock */
1258 int error
; /* merge with pnfs_error */
1259 unsigned long good_bytes
; /* boundary of good data */
1260 unsigned long flags
;
1263 struct nfs_read_header
{
1264 struct nfs_pgio_header header
;
1265 struct nfs_read_data rpc_data
;
1268 struct nfs_write_data
{
1269 struct nfs_pgio_header
*header
;
1270 struct list_head list
;
1271 struct rpc_task task
;
1272 struct nfs_fattr fattr
;
1273 struct nfs_writeverf verf
;
1274 struct nfs_writeargs args
; /* argument struct */
1275 struct nfs_writeres res
; /* result struct */
1276 unsigned long timestamp
; /* For lease renewal */
1277 int (*write_done_cb
) (struct rpc_task
*task
, struct nfs_write_data
*data
);
1278 __u64 mds_offset
; /* Filelayout dense stripe */
1279 struct nfs_page_array pages
;
1280 struct nfs_client
*ds_clp
; /* pNFS data server */
1283 struct nfs_write_header
{
1284 struct nfs_pgio_header header
;
1285 struct nfs_write_data rpc_data
;
1286 struct nfs_writeverf verf
;
1289 struct nfs_mds_commit_info
{
1291 unsigned long ncommit
;
1292 struct list_head list
;
1295 struct nfs_commit_data
;
1297 struct nfs_commit_completion_ops
{
1298 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1299 void (*completion
) (struct nfs_commit_data
*data
);
1302 struct nfs_commit_info
{
1304 struct nfs_mds_commit_info
*mds
;
1305 struct pnfs_ds_commit_info
*ds
;
1306 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1307 const struct nfs_commit_completion_ops
*completion_ops
;
1310 struct nfs_commit_data
{
1311 struct rpc_task task
;
1312 struct inode
*inode
;
1313 struct rpc_cred
*cred
;
1314 struct nfs_fattr fattr
;
1315 struct nfs_writeverf verf
;
1316 struct list_head pages
; /* Coalesced requests we wish to flush */
1317 struct list_head list
; /* lists of struct nfs_write_data */
1318 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1319 struct nfs_commitargs args
; /* argument struct */
1320 struct nfs_commitres res
; /* result struct */
1321 struct nfs_open_context
*context
;
1322 struct pnfs_layout_segment
*lseg
;
1323 struct nfs_client
*ds_clp
; /* pNFS data server */
1324 int ds_commit_index
;
1325 const struct rpc_call_ops
*mds_ops
;
1326 const struct nfs_commit_completion_ops
*completion_ops
;
1327 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1330 struct nfs_pgio_completion_ops
{
1331 void (*error_cleanup
)(struct list_head
*head
);
1332 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1333 void (*completion
)(struct nfs_pgio_header
*hdr
);
1336 struct nfs_unlinkdata
{
1337 struct hlist_node list
;
1338 struct nfs_removeargs args
;
1339 struct nfs_removeres res
;
1341 struct rpc_cred
*cred
;
1342 struct nfs_fattr dir_attr
;
1345 struct nfs_renamedata
{
1346 struct nfs_renameargs args
;
1347 struct nfs_renameres res
;
1348 struct rpc_cred
*cred
;
1349 struct inode
*old_dir
;
1350 struct dentry
*old_dentry
;
1351 struct nfs_fattr old_fattr
;
1352 struct inode
*new_dir
;
1353 struct dentry
*new_dentry
;
1354 struct nfs_fattr new_fattr
;
1357 struct nfs_access_entry
;
1360 struct nfs_subversion
;
1361 struct nfs_mount_info
;
1362 struct nfs_client_initdata
;
1363 struct nfs_pageio_descriptor
;
1366 * RPC procedure vector for NFSv2/NFSv3 demuxing
1368 struct nfs_rpc_ops
{
1369 u32 version
; /* Protocol version */
1370 const struct dentry_operations
*dentry_ops
;
1371 const struct inode_operations
*dir_inode_ops
;
1372 const struct inode_operations
*file_inode_ops
;
1373 const struct file_operations
*file_ops
;
1375 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1376 struct nfs_fsinfo
*);
1377 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1378 struct nfs_fh
*, struct nfs_fattr
*);
1379 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1380 struct nfs_subversion
*);
1381 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1382 struct nfs_fattr
*, struct nfs4_label
*);
1383 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1385 int (*lookup
) (struct inode
*, struct qstr
*,
1386 struct nfs_fh
*, struct nfs_fattr
*,
1387 struct nfs4_label
*);
1388 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1389 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1391 int (*create
) (struct inode
*, struct dentry
*,
1392 struct iattr
*, int);
1393 int (*remove
) (struct inode
*, struct qstr
*);
1394 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1395 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1396 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1397 int (*rename
) (struct inode
*, struct qstr
*,
1398 struct inode
*, struct qstr
*);
1399 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1400 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1401 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1402 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1403 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1404 unsigned int, struct iattr
*);
1405 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1406 int (*rmdir
) (struct inode
*, struct qstr
*);
1407 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1408 u64
, struct page
**, unsigned int, int);
1409 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1411 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1412 struct nfs_fsstat
*);
1413 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1414 struct nfs_fsinfo
*);
1415 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1416 struct nfs_pathconf
*);
1417 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1418 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1419 void (*read_setup
) (struct nfs_read_data
*, struct rpc_message
*);
1420 void (*read_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*,
1421 const struct nfs_pgio_completion_ops
*);
1422 void (*read_rpc_prepare
)(struct rpc_task
*, struct nfs_read_data
*);
1423 int (*read_done
) (struct rpc_task
*, struct nfs_read_data
*);
1424 void (*write_setup
) (struct nfs_write_data
*, struct rpc_message
*);
1425 void (*write_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*, int,
1426 const struct nfs_pgio_completion_ops
*);
1427 void (*write_rpc_prepare
)(struct rpc_task
*, struct nfs_write_data
*);
1428 int (*write_done
) (struct rpc_task
*, struct nfs_write_data
*);
1429 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1430 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1431 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1432 int (*lock
)(struct file
*, int, struct file_lock
*);
1433 int (*lock_check_bounds
)(const struct file_lock
*);
1434 void (*clear_acl_cache
)(struct inode
*);
1435 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1436 struct inode
* (*open_context
) (struct inode
*dir
,
1437 struct nfs_open_context
*ctx
,
1439 struct iattr
*iattr
);
1440 int (*have_delegation
)(struct inode
*, fmode_t
);
1441 int (*return_delegation
)(struct inode
*);
1442 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1444 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1445 const char *, rpc_authflavor_t
);
1446 void (*free_client
) (struct nfs_client
*);
1447 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1448 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1449 struct nfs_fattr
*, rpc_authflavor_t
);
1453 * NFS_CALL(getattr, inode, (fattr));
1455 * NFS_PROTO(inode)->getattr(fattr);
1457 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1460 * Function vectors etc. for the NFS client
1462 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1463 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1464 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1465 extern const struct rpc_version nfs_version2
;
1466 extern const struct rpc_version nfs_version3
;
1467 extern const struct rpc_version nfs_version4
;
1469 extern const struct rpc_version nfsacl_version3
;
1470 extern const struct rpc_program nfsacl_program
;