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 struct nfs4_sequence_args seq_args
;
383 const struct nfs_fh
* fh
;
384 nfs4_stateid
* stateid
;
385 struct nfs_seqid
* seqid
;
388 struct nfs_open_confirmres
{
389 struct nfs4_sequence_res seq_res
;
390 nfs4_stateid stateid
;
391 struct nfs_seqid
* seqid
;
395 * Arguments to the close call.
397 struct nfs_closeargs
{
398 struct nfs4_sequence_args seq_args
;
400 nfs4_stateid
* stateid
;
401 struct nfs_seqid
* seqid
;
406 struct nfs_closeres
{
407 struct nfs4_sequence_res seq_res
;
408 nfs4_stateid stateid
;
409 struct nfs_fattr
* fattr
;
410 struct nfs_seqid
* seqid
;
411 const struct nfs_server
*server
;
414 * * Arguments to the lock,lockt, and locku call.
422 struct nfs_lock_args
{
423 struct nfs4_sequence_args seq_args
;
425 struct file_lock
* fl
;
426 struct nfs_seqid
* lock_seqid
;
427 nfs4_stateid
* lock_stateid
;
428 struct nfs_seqid
* open_seqid
;
429 nfs4_stateid
* open_stateid
;
430 struct nfs_lowner lock_owner
;
431 unsigned char block
: 1;
432 unsigned char reclaim
: 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 read call.
494 struct nfs_readargs
{
495 struct nfs4_sequence_args seq_args
;
497 struct nfs_open_context
*context
;
498 struct nfs_lock_context
*lock_context
;
499 nfs4_stateid stateid
;
503 struct page
** pages
;
507 struct nfs4_sequence_res seq_res
;
508 struct nfs_fattr
* fattr
;
514 * Arguments to the write call.
516 struct nfs_writeargs
{
517 struct nfs4_sequence_args seq_args
;
519 struct nfs_open_context
*context
;
520 struct nfs_lock_context
*lock_context
;
521 nfs4_stateid stateid
;
524 enum nfs3_stable_how stable
;
526 struct page
** pages
;
530 struct nfs_write_verifier
{
534 struct nfs_writeverf
{
535 struct nfs_write_verifier verifier
;
536 enum nfs3_stable_how committed
;
539 struct nfs_writeres
{
540 struct nfs4_sequence_res seq_res
;
541 struct nfs_fattr
* fattr
;
542 struct nfs_writeverf
* verf
;
544 const struct nfs_server
*server
;
548 * Arguments to the commit call.
550 struct nfs_commitargs
{
551 struct nfs4_sequence_args seq_args
;
558 struct nfs_commitres
{
559 struct nfs4_sequence_res seq_res
;
560 struct nfs_fattr
*fattr
;
561 struct nfs_writeverf
*verf
;
562 const struct nfs_server
*server
;
566 * Common arguments to the unlink call
568 struct nfs_removeargs
{
569 struct nfs4_sequence_args seq_args
;
570 const struct nfs_fh
*fh
;
574 struct nfs_removeres
{
575 struct nfs4_sequence_res seq_res
;
576 const struct nfs_server
*server
;
577 struct nfs_fattr
*dir_attr
;
578 struct nfs4_change_info cinfo
;
582 * Common arguments to the rename call
584 struct nfs_renameargs
{
585 struct nfs4_sequence_args seq_args
;
586 const struct nfs_fh
*old_dir
;
587 const struct nfs_fh
*new_dir
;
588 const struct qstr
*old_name
;
589 const struct qstr
*new_name
;
592 struct nfs_renameres
{
593 struct nfs4_sequence_res seq_res
;
594 const struct nfs_server
*server
;
595 struct nfs4_change_info old_cinfo
;
596 struct nfs_fattr
*old_fattr
;
597 struct nfs4_change_info new_cinfo
;
598 struct nfs_fattr
*new_fattr
;
601 /* parsed sec= options */
602 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
603 struct nfs_auth_info
{
604 unsigned int flavor_len
;
605 rpc_authflavor_t flavors
[NFS_AUTH_INFO_MAX_FLAVORS
];
609 * Argument struct for decode_entry function
619 struct nfs_fattr
* fattr
;
620 struct nfs4_label
*label
;
621 unsigned char d_type
;
622 struct nfs_server
* server
;
626 * The following types are for NFSv2 only.
628 struct nfs_sattrargs
{
630 struct iattr
* sattr
;
633 struct nfs_diropargs
{
639 struct nfs_createargs
{
643 struct iattr
* sattr
;
646 struct nfs_setattrargs
{
647 struct nfs4_sequence_args seq_args
;
649 nfs4_stateid stateid
;
651 const struct nfs_server
* server
; /* Needed for name mapping */
653 const struct nfs4_label
*label
;
656 struct nfs_setaclargs
{
657 struct nfs4_sequence_args seq_args
;
660 unsigned int acl_pgbase
;
661 struct page
** acl_pages
;
664 struct nfs_setaclres
{
665 struct nfs4_sequence_res seq_res
;
668 struct nfs_getaclargs
{
669 struct nfs4_sequence_args seq_args
;
672 unsigned int acl_pgbase
;
673 struct page
** acl_pages
;
676 /* getxattr ACL interface flags */
677 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
678 struct nfs_getaclres
{
679 struct nfs4_sequence_res seq_res
;
681 size_t acl_data_offset
;
683 struct page
* acl_scratch
;
686 struct nfs_setattrres
{
687 struct nfs4_sequence_res seq_res
;
688 struct nfs_fattr
* fattr
;
689 struct nfs4_label
*label
;
690 const struct nfs_server
* server
;
693 struct nfs_linkargs
{
694 struct nfs_fh
* fromfh
;
695 struct nfs_fh
* tofh
;
700 struct nfs_symlinkargs
{
701 struct nfs_fh
* fromfh
;
702 const char * fromname
;
703 unsigned int fromlen
;
704 struct page
** pages
;
705 unsigned int pathlen
;
706 struct iattr
* sattr
;
709 struct nfs_readdirargs
{
713 struct page
** pages
;
716 struct nfs3_getaclargs
{
719 struct page
** pages
;
722 struct nfs3_setaclargs
{
723 struct inode
* inode
;
725 struct posix_acl
* acl_access
;
726 struct posix_acl
* acl_default
;
729 struct page
** pages
;
734 struct nfs_fattr
* fattr
;
737 struct nfs_readlinkargs
{
741 struct page
** pages
;
744 struct nfs3_sattrargs
{
746 struct iattr
* sattr
;
748 struct timespec guardtime
;
751 struct nfs3_diropargs
{
757 struct nfs3_accessargs
{
762 struct nfs3_createargs
{
766 struct iattr
* sattr
;
767 enum nfs3_createmode createmode
;
771 struct nfs3_mkdirargs
{
775 struct iattr
* sattr
;
778 struct nfs3_symlinkargs
{
779 struct nfs_fh
* fromfh
;
780 const char * fromname
;
781 unsigned int fromlen
;
782 struct page
** pages
;
783 unsigned int pathlen
;
784 struct iattr
* sattr
;
787 struct nfs3_mknodargs
{
791 enum nfs3_ftype type
;
792 struct iattr
* sattr
;
796 struct nfs3_linkargs
{
797 struct nfs_fh
* fromfh
;
798 struct nfs_fh
* tofh
;
803 struct nfs3_readdirargs
{
809 struct page
** pages
;
812 struct nfs3_diropres
{
813 struct nfs_fattr
* dir_attr
;
815 struct nfs_fattr
* fattr
;
818 struct nfs3_accessres
{
819 struct nfs_fattr
* fattr
;
823 struct nfs3_readlinkargs
{
827 struct page
** pages
;
830 struct nfs3_linkres
{
831 struct nfs_fattr
* dir_attr
;
832 struct nfs_fattr
* fattr
;
835 struct nfs3_readdirres
{
836 struct nfs_fattr
* dir_attr
;
841 struct nfs3_getaclres
{
842 struct nfs_fattr
* fattr
;
844 unsigned int acl_access_count
;
845 unsigned int acl_default_count
;
846 struct posix_acl
* acl_access
;
847 struct posix_acl
* acl_default
;
850 #if IS_ENABLED(CONFIG_NFS_V4)
852 typedef u64 clientid4
;
854 struct nfs4_accessargs
{
855 struct nfs4_sequence_args seq_args
;
856 const struct nfs_fh
* fh
;
861 struct nfs4_accessres
{
862 struct nfs4_sequence_res seq_res
;
863 const struct nfs_server
* server
;
864 struct nfs_fattr
* fattr
;
869 struct nfs4_create_arg
{
870 struct nfs4_sequence_args seq_args
;
874 struct page
** pages
;
876 } symlink
; /* NF4LNK */
880 } device
; /* NF4BLK, NF4CHR */
882 const struct qstr
* name
;
883 const struct nfs_server
* server
;
884 const struct iattr
* attrs
;
885 const struct nfs_fh
* dir_fh
;
887 const struct nfs4_label
*label
;
890 struct nfs4_create_res
{
891 struct nfs4_sequence_res seq_res
;
892 const struct nfs_server
* server
;
894 struct nfs_fattr
* fattr
;
895 struct nfs4_label
*label
;
896 struct nfs4_change_info dir_cinfo
;
899 struct nfs4_fsinfo_arg
{
900 struct nfs4_sequence_args seq_args
;
901 const struct nfs_fh
* fh
;
905 struct nfs4_fsinfo_res
{
906 struct nfs4_sequence_res seq_res
;
907 struct nfs_fsinfo
*fsinfo
;
910 struct nfs4_getattr_arg
{
911 struct nfs4_sequence_args seq_args
;
912 const struct nfs_fh
* fh
;
916 struct nfs4_getattr_res
{
917 struct nfs4_sequence_res seq_res
;
918 const struct nfs_server
* server
;
919 struct nfs_fattr
* fattr
;
920 struct nfs4_label
*label
;
923 struct nfs4_link_arg
{
924 struct nfs4_sequence_args seq_args
;
925 const struct nfs_fh
* fh
;
926 const struct nfs_fh
* dir_fh
;
927 const struct qstr
* name
;
931 struct nfs4_link_res
{
932 struct nfs4_sequence_res seq_res
;
933 const struct nfs_server
* server
;
934 struct nfs_fattr
* fattr
;
935 struct nfs4_label
*label
;
936 struct nfs4_change_info cinfo
;
937 struct nfs_fattr
* dir_attr
;
941 struct nfs4_lookup_arg
{
942 struct nfs4_sequence_args seq_args
;
943 const struct nfs_fh
* dir_fh
;
944 const struct qstr
* name
;
948 struct nfs4_lookup_res
{
949 struct nfs4_sequence_res seq_res
;
950 const struct nfs_server
* server
;
951 struct nfs_fattr
* fattr
;
953 struct nfs4_label
*label
;
956 struct nfs4_lookup_root_arg
{
957 struct nfs4_sequence_args seq_args
;
961 struct nfs4_pathconf_arg
{
962 struct nfs4_sequence_args seq_args
;
963 const struct nfs_fh
* fh
;
967 struct nfs4_pathconf_res
{
968 struct nfs4_sequence_res seq_res
;
969 struct nfs_pathconf
*pathconf
;
972 struct nfs4_readdir_arg
{
973 struct nfs4_sequence_args seq_args
;
974 const struct nfs_fh
* fh
;
976 nfs4_verifier verifier
;
978 struct page
** pages
; /* zero-copy data */
979 unsigned int pgbase
; /* zero-copy data */
984 struct nfs4_readdir_res
{
985 struct nfs4_sequence_res seq_res
;
986 nfs4_verifier verifier
;
990 struct nfs4_readlink
{
991 struct nfs4_sequence_args seq_args
;
992 const struct nfs_fh
* fh
;
994 unsigned int pglen
; /* zero-copy data */
995 struct page
** pages
; /* zero-copy data */
998 struct nfs4_readlink_res
{
999 struct nfs4_sequence_res seq_res
;
1002 #define NFS4_SETCLIENTID_NAMELEN (127)
1003 struct nfs4_setclientid
{
1004 const nfs4_verifier
* sc_verifier
;
1005 unsigned int sc_name_len
;
1006 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
1008 unsigned int sc_netid_len
;
1009 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
1010 unsigned int sc_uaddr_len
;
1011 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
1015 struct nfs4_setclientid_res
{
1017 nfs4_verifier confirm
;
1020 struct nfs4_statfs_arg
{
1021 struct nfs4_sequence_args seq_args
;
1022 const struct nfs_fh
* fh
;
1023 const u32
* bitmask
;
1026 struct nfs4_statfs_res
{
1027 struct nfs4_sequence_res seq_res
;
1028 struct nfs_fsstat
*fsstat
;
1031 struct nfs4_server_caps_arg
{
1032 struct nfs4_sequence_args seq_args
;
1033 struct nfs_fh
*fhandle
;
1036 struct nfs4_server_caps_res
{
1037 struct nfs4_sequence_res seq_res
;
1038 u32 attr_bitmask
[3];
1045 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1046 struct nfs4_pathname
{
1047 unsigned int ncomponents
;
1048 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1051 #define NFS4_FS_LOCATION_MAXSERVERS 10
1052 struct nfs4_fs_location
{
1053 unsigned int nservers
;
1054 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1055 struct nfs4_pathname rootpath
;
1058 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1059 struct nfs4_fs_locations
{
1060 struct nfs_fattr fattr
;
1061 const struct nfs_server
*server
;
1062 struct nfs4_pathname fs_path
;
1064 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1067 struct nfs4_fs_locations_arg
{
1068 struct nfs4_sequence_args seq_args
;
1069 const struct nfs_fh
*dir_fh
;
1070 const struct nfs_fh
*fh
;
1071 const struct qstr
*name
;
1075 unsigned char migration
:1, renew
:1;
1078 struct nfs4_fs_locations_res
{
1079 struct nfs4_sequence_res seq_res
;
1080 struct nfs4_fs_locations
*fs_locations
;
1081 unsigned char migration
:1, renew
:1;
1084 struct nfs4_secinfo4
{
1086 struct rpcsec_gss_info flavor_info
;
1089 struct nfs4_secinfo_flavors
{
1090 unsigned int num_flavors
;
1091 struct nfs4_secinfo4 flavors
[0];
1094 struct nfs4_secinfo_arg
{
1095 struct nfs4_sequence_args seq_args
;
1096 const struct nfs_fh
*dir_fh
;
1097 const struct qstr
*name
;
1100 struct nfs4_secinfo_res
{
1101 struct nfs4_sequence_res seq_res
;
1102 struct nfs4_secinfo_flavors
*flavors
;
1105 struct nfs4_fsid_present_arg
{
1106 struct nfs4_sequence_args seq_args
;
1107 const struct nfs_fh
*fh
;
1109 unsigned char renew
:1;
1112 struct nfs4_fsid_present_res
{
1113 struct nfs4_sequence_res seq_res
;
1115 unsigned char renew
:1;
1118 #endif /* CONFIG_NFS_V4 */
1125 #ifdef CONFIG_NFS_V4_1
1127 struct pnfs_commit_bucket
{
1128 struct list_head written
;
1129 struct list_head committing
;
1130 struct pnfs_layout_segment
*wlseg
;
1131 struct pnfs_layout_segment
*clseg
;
1134 struct pnfs_ds_commit_info
{
1138 struct pnfs_commit_bucket
*buckets
;
1141 #define NFS4_OP_MAP_NUM_LONGS \
1142 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1143 #define NFS4_OP_MAP_NUM_WORDS \
1144 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1145 struct nfs4_op_map
{
1147 unsigned long longs
[NFS4_OP_MAP_NUM_LONGS
];
1148 u32 words
[NFS4_OP_MAP_NUM_WORDS
];
1152 struct nfs41_state_protection
{
1154 struct nfs4_op_map enforce
;
1155 struct nfs4_op_map allow
;
1158 #define NFS4_EXCHANGE_ID_LEN (48)
1159 struct nfs41_exchange_id_args
{
1160 struct nfs_client
*client
;
1161 nfs4_verifier
*verifier
;
1162 unsigned int id_len
;
1163 char id
[NFS4_EXCHANGE_ID_LEN
];
1165 struct nfs41_state_protection state_protect
;
1168 struct nfs41_server_owner
{
1170 uint32_t major_id_sz
;
1171 char major_id
[NFS4_OPAQUE_LIMIT
];
1174 struct nfs41_server_scope
{
1175 uint32_t server_scope_sz
;
1176 char server_scope
[NFS4_OPAQUE_LIMIT
];
1179 struct nfs41_impl_id
{
1180 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1181 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1182 struct nfstime4 date
;
1185 struct nfs41_bind_conn_to_session_res
{
1186 struct nfs4_session
*session
;
1188 bool use_conn_in_rdma_mode
;
1191 struct nfs41_exchange_id_res
{
1195 struct nfs41_server_owner
*server_owner
;
1196 struct nfs41_server_scope
*server_scope
;
1197 struct nfs41_impl_id
*impl_id
;
1198 struct nfs41_state_protection state_protect
;
1201 struct nfs41_create_session_args
{
1202 struct nfs_client
*client
;
1204 uint32_t cb_program
;
1205 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1206 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1209 struct nfs41_create_session_res
{
1210 struct nfs_client
*client
;
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
;
1252 struct pnfs_ds_commit_info
{
1255 #endif /* CONFIG_NFS_V4_1 */
1259 #define NFS_PAGEVEC_SIZE (8U)
1261 struct nfs_page_array
{
1262 struct page
**pagevec
;
1263 unsigned int npages
; /* Max length of pagevec */
1264 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1267 struct nfs_read_data
{
1268 struct nfs_pgio_header
*header
;
1269 struct list_head list
;
1270 struct rpc_task task
;
1271 struct nfs_fattr fattr
; /* fattr storage */
1272 struct nfs_readargs args
;
1273 struct nfs_readres res
;
1274 unsigned long timestamp
; /* For lease renewal */
1275 int (*read_done_cb
) (struct rpc_task
*task
, struct nfs_read_data
*data
);
1277 struct nfs_page_array pages
;
1278 struct nfs_client
*ds_clp
; /* pNFS data server */
1281 /* used as flag bits in nfs_pgio_header */
1283 NFS_IOHDR_ERROR
= 0,
1286 NFS_IOHDR_NEED_COMMIT
,
1287 NFS_IOHDR_NEED_RESCHED
,
1290 struct nfs_pgio_header
{
1291 struct inode
*inode
;
1292 struct rpc_cred
*cred
;
1293 struct list_head pages
;
1294 struct list_head rpc_list
;
1296 struct nfs_page
*req
;
1297 struct nfs_writeverf
*verf
;
1298 struct pnfs_layout_segment
*lseg
;
1300 const struct rpc_call_ops
*mds_ops
;
1301 void (*release
) (struct nfs_pgio_header
*hdr
);
1302 const struct nfs_pgio_completion_ops
*completion_ops
;
1303 struct nfs_direct_req
*dreq
;
1304 void *layout_private
;
1306 /* fields protected by lock */
1308 int error
; /* merge with pnfs_error */
1309 unsigned long good_bytes
; /* boundary of good data */
1310 unsigned long flags
;
1313 struct nfs_read_header
{
1314 struct nfs_pgio_header header
;
1315 struct nfs_read_data rpc_data
;
1318 struct nfs_write_data
{
1319 struct nfs_pgio_header
*header
;
1320 struct list_head list
;
1321 struct rpc_task task
;
1322 struct nfs_fattr fattr
;
1323 struct nfs_writeverf verf
;
1324 struct nfs_writeargs args
; /* argument struct */
1325 struct nfs_writeres res
; /* result struct */
1326 unsigned long timestamp
; /* For lease renewal */
1327 int (*write_done_cb
) (struct rpc_task
*task
, struct nfs_write_data
*data
);
1328 __u64 mds_offset
; /* Filelayout dense stripe */
1329 struct nfs_page_array pages
;
1330 struct nfs_client
*ds_clp
; /* pNFS data server */
1333 struct nfs_write_header
{
1334 struct nfs_pgio_header header
;
1335 struct nfs_write_data rpc_data
;
1336 struct nfs_writeverf verf
;
1339 struct nfs_mds_commit_info
{
1341 unsigned long ncommit
;
1342 struct list_head list
;
1345 struct nfs_commit_data
;
1347 struct nfs_commit_completion_ops
{
1348 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1349 void (*completion
) (struct nfs_commit_data
*data
);
1352 struct nfs_commit_info
{
1354 struct nfs_mds_commit_info
*mds
;
1355 struct pnfs_ds_commit_info
*ds
;
1356 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1357 const struct nfs_commit_completion_ops
*completion_ops
;
1360 struct nfs_commit_data
{
1361 struct rpc_task task
;
1362 struct inode
*inode
;
1363 struct rpc_cred
*cred
;
1364 struct nfs_fattr fattr
;
1365 struct nfs_writeverf verf
;
1366 struct list_head pages
; /* Coalesced requests we wish to flush */
1367 struct list_head list
; /* lists of struct nfs_write_data */
1368 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1369 struct nfs_commitargs args
; /* argument struct */
1370 struct nfs_commitres res
; /* result struct */
1371 struct nfs_open_context
*context
;
1372 struct pnfs_layout_segment
*lseg
;
1373 struct nfs_client
*ds_clp
; /* pNFS data server */
1374 int ds_commit_index
;
1375 const struct rpc_call_ops
*mds_ops
;
1376 const struct nfs_commit_completion_ops
*completion_ops
;
1377 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1380 struct nfs_pgio_completion_ops
{
1381 void (*error_cleanup
)(struct list_head
*head
);
1382 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1383 void (*completion
)(struct nfs_pgio_header
*hdr
);
1386 struct nfs_unlinkdata
{
1387 struct hlist_node list
;
1388 struct nfs_removeargs args
;
1389 struct nfs_removeres res
;
1391 struct rpc_cred
*cred
;
1392 struct nfs_fattr dir_attr
;
1395 struct nfs_renamedata
{
1396 struct nfs_renameargs args
;
1397 struct nfs_renameres res
;
1398 struct rpc_cred
*cred
;
1399 struct inode
*old_dir
;
1400 struct dentry
*old_dentry
;
1401 struct nfs_fattr old_fattr
;
1402 struct inode
*new_dir
;
1403 struct dentry
*new_dentry
;
1404 struct nfs_fattr new_fattr
;
1405 void (*complete
)(struct rpc_task
*, struct nfs_renamedata
*);
1408 struct nfs_access_entry
;
1411 struct nfs_subversion
;
1412 struct nfs_mount_info
;
1413 struct nfs_client_initdata
;
1414 struct nfs_pageio_descriptor
;
1417 * RPC procedure vector for NFSv2/NFSv3 demuxing
1419 struct nfs_rpc_ops
{
1420 u32 version
; /* Protocol version */
1421 const struct dentry_operations
*dentry_ops
;
1422 const struct inode_operations
*dir_inode_ops
;
1423 const struct inode_operations
*file_inode_ops
;
1424 const struct file_operations
*file_ops
;
1426 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1427 struct nfs_fsinfo
*);
1428 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1429 struct nfs_fh
*, struct nfs_fattr
*);
1430 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1431 struct nfs_subversion
*);
1432 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1433 struct nfs_fattr
*, struct nfs4_label
*);
1434 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1436 int (*lookup
) (struct inode
*, struct qstr
*,
1437 struct nfs_fh
*, struct nfs_fattr
*,
1438 struct nfs4_label
*);
1439 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1440 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1442 int (*create
) (struct inode
*, struct dentry
*,
1443 struct iattr
*, int);
1444 int (*remove
) (struct inode
*, struct qstr
*);
1445 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1446 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1447 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1448 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1449 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1450 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1451 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1452 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1453 unsigned int, struct iattr
*);
1454 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1455 int (*rmdir
) (struct inode
*, struct qstr
*);
1456 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1457 u64
, struct page
**, unsigned int, int);
1458 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1460 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1461 struct nfs_fsstat
*);
1462 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1463 struct nfs_fsinfo
*);
1464 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1465 struct nfs_pathconf
*);
1466 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1467 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1468 void (*read_setup
) (struct nfs_read_data
*, struct rpc_message
*);
1469 int (*read_rpc_prepare
)(struct rpc_task
*, struct nfs_read_data
*);
1470 int (*read_done
) (struct rpc_task
*, struct nfs_read_data
*);
1471 void (*write_setup
) (struct nfs_write_data
*, struct rpc_message
*);
1472 int (*write_rpc_prepare
)(struct rpc_task
*, struct nfs_write_data
*);
1473 int (*write_done
) (struct rpc_task
*, struct nfs_write_data
*);
1474 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1475 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1476 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1477 int (*lock
)(struct file
*, int, struct file_lock
*);
1478 int (*lock_check_bounds
)(const struct file_lock
*);
1479 void (*clear_acl_cache
)(struct inode
*);
1480 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1481 struct inode
* (*open_context
) (struct inode
*dir
,
1482 struct nfs_open_context
*ctx
,
1484 struct iattr
*iattr
,
1486 int (*have_delegation
)(struct inode
*, fmode_t
);
1487 int (*return_delegation
)(struct inode
*);
1488 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1490 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1492 void (*free_client
) (struct nfs_client
*);
1493 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1494 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1495 struct nfs_fattr
*, rpc_authflavor_t
);
1499 * NFS_CALL(getattr, inode, (fattr));
1501 * NFS_PROTO(inode)->getattr(fattr);
1503 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1506 * Function vectors etc. for the NFS client
1508 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1509 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1510 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1511 extern const struct rpc_version nfs_version2
;
1512 extern const struct rpc_version nfs_version3
;
1513 extern const struct rpc_version nfs_version4
;
1515 extern const struct rpc_version nfsacl_version3
;
1516 extern const struct rpc_program nfsacl_program
;