1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
28 * Helper for checking equality between 2 fsids.
30 static inline int nfs_fsid_equal(const struct nfs_fsid
*a
, const struct nfs_fsid
*b
)
32 return a
->major
== b
->major
&& a
->minor
== b
->minor
;
35 struct nfs4_threshold
{
45 unsigned int valid
; /* which fields are valid */
63 __u64 mounted_on_fileid
;
64 struct timespec atime
;
65 struct timespec mtime
;
66 struct timespec ctime
;
67 __u64 change_attr
; /* NFSv4 change attribute */
68 __u64 pre_change_attr
;/* pre-op NFSv4 change attribute */
69 __u64 pre_size
; /* pre_op_attr.size */
70 struct timespec pre_mtime
; /* pre_op_attr.mtime */
71 struct timespec pre_ctime
; /* pre_op_attr.ctime */
72 unsigned long time_start
;
73 unsigned long gencount
;
74 struct nfs4_string
*owner_name
;
75 struct nfs4_string
*group_name
;
76 struct nfs4_threshold
*mdsthreshold
; /* pNFS threshold hints */
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
128 * Info on the file system
131 struct nfs_fattr
*fattr
; /* Post-op attributes */
132 __u32 rtmax
; /* max. read transfer size */
133 __u32 rtpref
; /* pref. read transfer size */
134 __u32 rtmult
; /* reads should be multiple of this */
135 __u32 wtmax
; /* max. write transfer size */
136 __u32 wtpref
; /* pref. write transfer size */
137 __u32 wtmult
; /* writes should be multiple of this */
138 __u32 dtpref
; /* pref. readdir transfer size */
140 struct timespec time_delta
; /* server time granularity */
141 __u32 lease_time
; /* in seconds */
142 __u32 layouttype
; /* supported pnfs layout driver */
143 __u32 blksize
; /* preferred pnfs io block size */
147 struct nfs_fattr
*fattr
; /* Post-op attributes */
148 __u64 tbytes
; /* total size in bytes */
149 __u64 fbytes
; /* # of free bytes */
150 __u64 abytes
; /* # of bytes available to user */
151 __u64 tfiles
; /* # of files */
152 __u64 ffiles
; /* # of free files */
153 __u64 afiles
; /* # of files available to user */
157 __u32 tsize
; /* Server transfer size */
158 __u32 bsize
; /* Filesystem block size */
159 __u32 blocks
; /* No. of "bsize" blocks on filesystem */
160 __u32 bfree
; /* No. of free "bsize" blocks */
161 __u32 bavail
; /* No. of available "bsize" blocks */
164 struct nfs_pathconf
{
165 struct nfs_fattr
*fattr
; /* Post-op attributes */
166 __u32 max_link
; /* max # of hard links */
167 __u32 max_namelen
; /* max name length */
170 struct nfs4_change_info
{
178 /* nfs41 sessions channel attributes */
179 struct nfs4_channel_attrs
{
182 u32 max_resp_sz_cached
;
188 struct nfs4_sequence_args
{
189 struct nfs4_slot
*sa_slot
;
190 u8 sa_cache_this
: 1,
194 struct nfs4_sequence_res
{
195 struct nfs4_slot
*sr_slot
; /* slot used to send request */
196 unsigned long sr_timestamp
;
197 int sr_status
; /* sequence operation status */
199 u32 sr_highest_slotid
;
200 u32 sr_target_highest_slotid
;
203 struct nfs4_get_lease_time_args
{
204 struct nfs4_sequence_args la_seq_args
;
207 struct nfs4_get_lease_time_res
{
208 struct nfs4_sequence_res lr_seq_res
;
209 struct nfs_fsinfo
*lr_fsinfo
;
212 #define PNFS_LAYOUT_MAXSIZE 4096
214 struct nfs4_layoutdriver_data
{
220 struct pnfs_layout_range
{
226 struct nfs4_layoutget_args
{
227 struct nfs4_sequence_args seq_args
;
229 struct pnfs_layout_range range
;
233 struct nfs_open_context
*ctx
;
234 nfs4_stateid stateid
;
235 unsigned long timestamp
;
236 struct nfs4_layoutdriver_data layout
;
239 struct nfs4_layoutget_res
{
240 struct nfs4_sequence_res seq_res
;
241 __u32 return_on_close
;
242 struct pnfs_layout_range range
;
244 nfs4_stateid stateid
;
245 struct nfs4_layoutdriver_data
*layoutp
;
248 struct nfs4_layoutget
{
249 struct nfs4_layoutget_args args
;
250 struct nfs4_layoutget_res res
;
251 struct rpc_cred
*cred
;
255 struct nfs4_getdeviceinfo_args
{
256 struct nfs4_sequence_args seq_args
;
257 struct pnfs_device
*pdev
;
260 struct nfs4_getdeviceinfo_res
{
261 struct nfs4_sequence_res seq_res
;
262 struct pnfs_device
*pdev
;
265 struct nfs4_layoutcommit_args
{
266 struct nfs4_sequence_args seq_args
;
267 nfs4_stateid stateid
;
268 __u64 lastbytewritten
;
271 size_t layoutupdate_len
;
272 struct page
*layoutupdate_page
;
273 struct page
**layoutupdate_pages
;
276 struct nfs4_layoutcommit_res
{
277 struct nfs4_sequence_res seq_res
;
278 struct nfs_fattr
*fattr
;
279 const struct nfs_server
*server
;
283 struct nfs4_layoutcommit_data
{
284 struct rpc_task task
;
285 struct nfs_fattr fattr
;
286 struct list_head lseg_list
;
287 struct rpc_cred
*cred
;
289 struct nfs4_layoutcommit_args args
;
290 struct nfs4_layoutcommit_res res
;
293 struct nfs4_layoutreturn_args
{
294 struct nfs4_sequence_args seq_args
;
295 struct pnfs_layout_hdr
*layout
;
297 struct pnfs_layout_range range
;
298 nfs4_stateid stateid
;
302 struct nfs4_layoutreturn_res
{
303 struct nfs4_sequence_res seq_res
;
305 nfs4_stateid stateid
;
308 struct nfs4_layoutreturn
{
309 struct nfs4_layoutreturn_args args
;
310 struct nfs4_layoutreturn_res res
;
311 struct rpc_cred
*cred
;
312 struct nfs_client
*clp
;
317 struct stateowner_id
{
323 * Arguments to the open call.
325 struct nfs_openargs
{
326 struct nfs4_sequence_args seq_args
;
327 const struct nfs_fh
* fh
;
328 struct nfs_seqid
* seqid
;
334 struct stateowner_id id
;
337 struct iattr
* attrs
; /* UNCHECKED, GUARDED */
338 nfs4_verifier verifier
; /* EXCLUSIVE */
340 nfs4_stateid delegation
; /* CLAIM_DELEGATE_CUR */
341 fmode_t delegation_type
; /* CLAIM_PREVIOUS */
343 const struct qstr
* name
;
344 const struct nfs_server
*server
; /* Needed for ID mapping */
346 const u32
* open_bitmap
;
348 enum createmode4 createmode
;
349 const struct nfs4_label
*label
;
353 struct nfs4_sequence_res seq_res
;
354 nfs4_stateid stateid
;
356 struct nfs4_change_info cinfo
;
358 struct nfs_fattr
* f_attr
;
359 struct nfs4_label
*f_label
;
360 struct nfs_seqid
* seqid
;
361 const struct nfs_server
*server
;
362 fmode_t delegation_type
;
363 nfs4_stateid delegation
;
366 __u32 attrset
[NFS4_BITMAP_SIZE
];
367 struct nfs4_string
*owner
;
368 struct nfs4_string
*group_owner
;
369 __u32 access_request
;
370 __u32 access_supported
;
375 * Arguments to the open_confirm call.
377 struct nfs_open_confirmargs
{
378 struct nfs4_sequence_args seq_args
;
379 const struct nfs_fh
* fh
;
380 nfs4_stateid
* stateid
;
381 struct nfs_seqid
* seqid
;
384 struct nfs_open_confirmres
{
385 struct nfs4_sequence_res seq_res
;
386 nfs4_stateid stateid
;
387 struct nfs_seqid
* seqid
;
391 * Arguments to the close call.
393 struct nfs_closeargs
{
394 struct nfs4_sequence_args seq_args
;
396 nfs4_stateid stateid
;
397 struct nfs_seqid
* seqid
;
403 struct nfs_closeres
{
404 struct nfs4_sequence_res seq_res
;
405 nfs4_stateid stateid
;
406 struct nfs_fattr
* fattr
;
407 struct nfs_seqid
* seqid
;
408 const struct nfs_server
*server
;
411 * * Arguments to the lock,lockt, and locku call.
419 struct nfs_lock_args
{
420 struct nfs4_sequence_args seq_args
;
422 struct file_lock
* fl
;
423 struct nfs_seqid
* lock_seqid
;
424 nfs4_stateid lock_stateid
;
425 struct nfs_seqid
* open_seqid
;
426 nfs4_stateid open_stateid
;
427 struct nfs_lowner lock_owner
;
428 unsigned char block
: 1;
429 unsigned char reclaim
: 1;
430 unsigned char new_lock
: 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 nfs4_sequence_args seq_args
;
469 struct nfs_lowner lock_owner
;
472 struct nfs_release_lockowner_res
{
473 struct nfs4_sequence_res seq_res
;
476 struct nfs4_delegreturnargs
{
477 struct nfs4_sequence_args seq_args
;
478 const struct nfs_fh
*fhandle
;
479 const nfs4_stateid
*stateid
;
483 struct nfs4_delegreturnres
{
484 struct nfs4_sequence_res seq_res
;
485 struct nfs_fattr
* fattr
;
486 const struct nfs_server
*server
;
490 * Arguments to the write call.
492 struct nfs_write_verifier
{
496 struct nfs_writeverf
{
497 struct nfs_write_verifier verifier
;
498 enum nfs3_stable_how committed
;
502 * Arguments shared by the read and write call.
504 struct nfs_pgio_args
{
505 struct nfs4_sequence_args seq_args
;
507 struct nfs_open_context
*context
;
508 struct nfs_lock_context
*lock_context
;
509 nfs4_stateid stateid
;
513 struct page
** pages
;
514 const u32
* bitmask
; /* used by write */
515 enum nfs3_stable_how stable
; /* used by write */
518 struct nfs_pgio_res
{
519 struct nfs4_sequence_res seq_res
;
520 struct nfs_fattr
* fattr
;
523 int eof
; /* used by read */
524 struct nfs_writeverf
* verf
; /* used by write */
525 const struct nfs_server
*server
; /* used by write */
530 * Arguments to the commit call.
532 struct nfs_commitargs
{
533 struct nfs4_sequence_args seq_args
;
540 struct nfs_commitres
{
541 struct nfs4_sequence_res seq_res
;
543 struct nfs_fattr
*fattr
;
544 struct nfs_writeverf
*verf
;
545 const struct nfs_server
*server
;
549 * Common arguments to the unlink call
551 struct nfs_removeargs
{
552 struct nfs4_sequence_args seq_args
;
553 const struct nfs_fh
*fh
;
557 struct nfs_removeres
{
558 struct nfs4_sequence_res seq_res
;
559 const struct nfs_server
*server
;
560 struct nfs_fattr
*dir_attr
;
561 struct nfs4_change_info cinfo
;
565 * Common arguments to the rename call
567 struct nfs_renameargs
{
568 struct nfs4_sequence_args seq_args
;
569 const struct nfs_fh
*old_dir
;
570 const struct nfs_fh
*new_dir
;
571 const struct qstr
*old_name
;
572 const struct qstr
*new_name
;
575 struct nfs_renameres
{
576 struct nfs4_sequence_res seq_res
;
577 const struct nfs_server
*server
;
578 struct nfs4_change_info old_cinfo
;
579 struct nfs_fattr
*old_fattr
;
580 struct nfs4_change_info new_cinfo
;
581 struct nfs_fattr
*new_fattr
;
584 /* parsed sec= options */
585 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
586 struct nfs_auth_info
{
587 unsigned int flavor_len
;
588 rpc_authflavor_t flavors
[NFS_AUTH_INFO_MAX_FLAVORS
];
592 * Argument struct for decode_entry function
602 struct nfs_fattr
* fattr
;
603 struct nfs4_label
*label
;
604 unsigned char d_type
;
605 struct nfs_server
* server
;
609 * The following types are for NFSv2 only.
611 struct nfs_sattrargs
{
613 struct iattr
* sattr
;
616 struct nfs_diropargs
{
622 struct nfs_createargs
{
626 struct iattr
* sattr
;
629 struct nfs_setattrargs
{
630 struct nfs4_sequence_args seq_args
;
632 nfs4_stateid stateid
;
634 const struct nfs_server
* server
; /* Needed for name mapping */
636 const struct nfs4_label
*label
;
639 struct nfs_setaclargs
{
640 struct nfs4_sequence_args seq_args
;
643 unsigned int acl_pgbase
;
644 struct page
** acl_pages
;
647 struct nfs_setaclres
{
648 struct nfs4_sequence_res seq_res
;
651 struct nfs_getaclargs
{
652 struct nfs4_sequence_args seq_args
;
655 unsigned int acl_pgbase
;
656 struct page
** acl_pages
;
659 /* getxattr ACL interface flags */
660 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
661 struct nfs_getaclres
{
662 struct nfs4_sequence_res seq_res
;
664 size_t acl_data_offset
;
666 struct page
* acl_scratch
;
669 struct nfs_setattrres
{
670 struct nfs4_sequence_res seq_res
;
671 struct nfs_fattr
* fattr
;
672 struct nfs4_label
*label
;
673 const struct nfs_server
* server
;
676 struct nfs_linkargs
{
677 struct nfs_fh
* fromfh
;
678 struct nfs_fh
* tofh
;
683 struct nfs_symlinkargs
{
684 struct nfs_fh
* fromfh
;
685 const char * fromname
;
686 unsigned int fromlen
;
687 struct page
** pages
;
688 unsigned int pathlen
;
689 struct iattr
* sattr
;
692 struct nfs_readdirargs
{
696 struct page
** pages
;
699 struct nfs3_getaclargs
{
702 struct page
** pages
;
705 struct nfs3_setaclargs
{
706 struct inode
* inode
;
708 struct posix_acl
* acl_access
;
709 struct posix_acl
* acl_default
;
712 struct page
** pages
;
717 struct nfs_fattr
* fattr
;
720 struct nfs_readlinkargs
{
724 struct page
** pages
;
727 struct nfs3_sattrargs
{
729 struct iattr
* sattr
;
731 struct timespec guardtime
;
734 struct nfs3_diropargs
{
740 struct nfs3_accessargs
{
745 struct nfs3_createargs
{
749 struct iattr
* sattr
;
750 enum nfs3_createmode createmode
;
754 struct nfs3_mkdirargs
{
758 struct iattr
* sattr
;
761 struct nfs3_symlinkargs
{
762 struct nfs_fh
* fromfh
;
763 const char * fromname
;
764 unsigned int fromlen
;
765 struct page
** pages
;
766 unsigned int pathlen
;
767 struct iattr
* sattr
;
770 struct nfs3_mknodargs
{
774 enum nfs3_ftype type
;
775 struct iattr
* sattr
;
779 struct nfs3_linkargs
{
780 struct nfs_fh
* fromfh
;
781 struct nfs_fh
* tofh
;
786 struct nfs3_readdirargs
{
792 struct page
** pages
;
795 struct nfs3_diropres
{
796 struct nfs_fattr
* dir_attr
;
798 struct nfs_fattr
* fattr
;
801 struct nfs3_accessres
{
802 struct nfs_fattr
* fattr
;
806 struct nfs3_readlinkargs
{
810 struct page
** pages
;
813 struct nfs3_linkres
{
814 struct nfs_fattr
* dir_attr
;
815 struct nfs_fattr
* fattr
;
818 struct nfs3_readdirres
{
819 struct nfs_fattr
* dir_attr
;
824 struct nfs3_getaclres
{
825 struct nfs_fattr
* fattr
;
827 unsigned int acl_access_count
;
828 unsigned int acl_default_count
;
829 struct posix_acl
* acl_access
;
830 struct posix_acl
* acl_default
;
833 #if IS_ENABLED(CONFIG_NFS_V4)
835 typedef u64 clientid4
;
837 struct nfs4_accessargs
{
838 struct nfs4_sequence_args seq_args
;
839 const struct nfs_fh
* fh
;
844 struct nfs4_accessres
{
845 struct nfs4_sequence_res seq_res
;
846 const struct nfs_server
* server
;
847 struct nfs_fattr
* fattr
;
852 struct nfs4_create_arg
{
853 struct nfs4_sequence_args seq_args
;
857 struct page
** pages
;
859 } symlink
; /* NF4LNK */
863 } device
; /* NF4BLK, NF4CHR */
865 const struct qstr
* name
;
866 const struct nfs_server
* server
;
867 const struct iattr
* attrs
;
868 const struct nfs_fh
* dir_fh
;
870 const struct nfs4_label
*label
;
873 struct nfs4_create_res
{
874 struct nfs4_sequence_res seq_res
;
875 const struct nfs_server
* server
;
877 struct nfs_fattr
* fattr
;
878 struct nfs4_label
*label
;
879 struct nfs4_change_info dir_cinfo
;
882 struct nfs4_fsinfo_arg
{
883 struct nfs4_sequence_args seq_args
;
884 const struct nfs_fh
* fh
;
888 struct nfs4_fsinfo_res
{
889 struct nfs4_sequence_res seq_res
;
890 struct nfs_fsinfo
*fsinfo
;
893 struct nfs4_getattr_arg
{
894 struct nfs4_sequence_args seq_args
;
895 const struct nfs_fh
* fh
;
899 struct nfs4_getattr_res
{
900 struct nfs4_sequence_res seq_res
;
901 const struct nfs_server
* server
;
902 struct nfs_fattr
* fattr
;
903 struct nfs4_label
*label
;
906 struct nfs4_link_arg
{
907 struct nfs4_sequence_args seq_args
;
908 const struct nfs_fh
* fh
;
909 const struct nfs_fh
* dir_fh
;
910 const struct qstr
* name
;
914 struct nfs4_link_res
{
915 struct nfs4_sequence_res seq_res
;
916 const struct nfs_server
* server
;
917 struct nfs_fattr
* fattr
;
918 struct nfs4_label
*label
;
919 struct nfs4_change_info cinfo
;
920 struct nfs_fattr
* dir_attr
;
924 struct nfs4_lookup_arg
{
925 struct nfs4_sequence_args seq_args
;
926 const struct nfs_fh
* dir_fh
;
927 const struct qstr
* name
;
931 struct nfs4_lookup_res
{
932 struct nfs4_sequence_res seq_res
;
933 const struct nfs_server
* server
;
934 struct nfs_fattr
* fattr
;
936 struct nfs4_label
*label
;
939 struct nfs4_lookup_root_arg
{
940 struct nfs4_sequence_args seq_args
;
944 struct nfs4_pathconf_arg
{
945 struct nfs4_sequence_args seq_args
;
946 const struct nfs_fh
* fh
;
950 struct nfs4_pathconf_res
{
951 struct nfs4_sequence_res seq_res
;
952 struct nfs_pathconf
*pathconf
;
955 struct nfs4_readdir_arg
{
956 struct nfs4_sequence_args seq_args
;
957 const struct nfs_fh
* fh
;
959 nfs4_verifier verifier
;
961 struct page
** pages
; /* zero-copy data */
962 unsigned int pgbase
; /* zero-copy data */
967 struct nfs4_readdir_res
{
968 struct nfs4_sequence_res seq_res
;
969 nfs4_verifier verifier
;
973 struct nfs4_readlink
{
974 struct nfs4_sequence_args seq_args
;
975 const struct nfs_fh
* fh
;
977 unsigned int pglen
; /* zero-copy data */
978 struct page
** pages
; /* zero-copy data */
981 struct nfs4_readlink_res
{
982 struct nfs4_sequence_res seq_res
;
985 #define NFS4_SETCLIENTID_NAMELEN (127)
986 struct nfs4_setclientid
{
987 const nfs4_verifier
* sc_verifier
;
988 unsigned int sc_name_len
;
989 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
991 unsigned int sc_netid_len
;
992 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
993 unsigned int sc_uaddr_len
;
994 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
996 struct rpc_cred
*sc_cred
;
999 struct nfs4_setclientid_res
{
1001 nfs4_verifier confirm
;
1004 struct nfs4_statfs_arg
{
1005 struct nfs4_sequence_args seq_args
;
1006 const struct nfs_fh
* fh
;
1007 const u32
* bitmask
;
1010 struct nfs4_statfs_res
{
1011 struct nfs4_sequence_res seq_res
;
1012 struct nfs_fsstat
*fsstat
;
1015 struct nfs4_server_caps_arg
{
1016 struct nfs4_sequence_args seq_args
;
1017 struct nfs_fh
*fhandle
;
1020 struct nfs4_server_caps_res
{
1021 struct nfs4_sequence_res seq_res
;
1022 u32 attr_bitmask
[3];
1029 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1030 struct nfs4_pathname
{
1031 unsigned int ncomponents
;
1032 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1035 #define NFS4_FS_LOCATION_MAXSERVERS 10
1036 struct nfs4_fs_location
{
1037 unsigned int nservers
;
1038 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1039 struct nfs4_pathname rootpath
;
1042 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1043 struct nfs4_fs_locations
{
1044 struct nfs_fattr fattr
;
1045 const struct nfs_server
*server
;
1046 struct nfs4_pathname fs_path
;
1048 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1051 struct nfs4_fs_locations_arg
{
1052 struct nfs4_sequence_args seq_args
;
1053 const struct nfs_fh
*dir_fh
;
1054 const struct nfs_fh
*fh
;
1055 const struct qstr
*name
;
1059 unsigned char migration
:1, renew
:1;
1062 struct nfs4_fs_locations_res
{
1063 struct nfs4_sequence_res seq_res
;
1064 struct nfs4_fs_locations
*fs_locations
;
1065 unsigned char migration
:1, renew
:1;
1068 struct nfs4_secinfo4
{
1070 struct rpcsec_gss_info flavor_info
;
1073 struct nfs4_secinfo_flavors
{
1074 unsigned int num_flavors
;
1075 struct nfs4_secinfo4 flavors
[0];
1078 struct nfs4_secinfo_arg
{
1079 struct nfs4_sequence_args seq_args
;
1080 const struct nfs_fh
*dir_fh
;
1081 const struct qstr
*name
;
1084 struct nfs4_secinfo_res
{
1085 struct nfs4_sequence_res seq_res
;
1086 struct nfs4_secinfo_flavors
*flavors
;
1089 struct nfs4_fsid_present_arg
{
1090 struct nfs4_sequence_args seq_args
;
1091 const struct nfs_fh
*fh
;
1093 unsigned char renew
:1;
1096 struct nfs4_fsid_present_res
{
1097 struct nfs4_sequence_res seq_res
;
1099 unsigned char renew
:1;
1102 #endif /* CONFIG_NFS_V4 */
1109 #ifdef CONFIG_NFS_V4_1
1111 struct pnfs_commit_bucket
{
1112 struct list_head written
;
1113 struct list_head committing
;
1114 struct pnfs_layout_segment
*wlseg
;
1115 struct pnfs_layout_segment
*clseg
;
1116 struct nfs_writeverf direct_verf
;
1119 struct pnfs_ds_commit_info
{
1123 struct pnfs_commit_bucket
*buckets
;
1126 #define NFS4_OP_MAP_NUM_LONGS \
1127 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1128 #define NFS4_OP_MAP_NUM_WORDS \
1129 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1130 struct nfs4_op_map
{
1132 unsigned long longs
[NFS4_OP_MAP_NUM_LONGS
];
1133 u32 words
[NFS4_OP_MAP_NUM_WORDS
];
1137 struct nfs41_state_protection
{
1139 struct nfs4_op_map enforce
;
1140 struct nfs4_op_map allow
;
1143 #define NFS4_EXCHANGE_ID_LEN (48)
1144 struct nfs41_exchange_id_args
{
1145 struct nfs_client
*client
;
1146 nfs4_verifier
*verifier
;
1147 unsigned int id_len
;
1148 char id
[NFS4_EXCHANGE_ID_LEN
];
1150 struct nfs41_state_protection state_protect
;
1153 struct nfs41_server_owner
{
1155 uint32_t major_id_sz
;
1156 char major_id
[NFS4_OPAQUE_LIMIT
];
1159 struct nfs41_server_scope
{
1160 uint32_t server_scope_sz
;
1161 char server_scope
[NFS4_OPAQUE_LIMIT
];
1164 struct nfs41_impl_id
{
1165 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1166 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1167 struct nfstime4 date
;
1170 struct nfs41_bind_conn_to_session_args
{
1171 struct nfs_client
*client
;
1172 struct nfs4_sessionid sessionid
;
1174 bool use_conn_in_rdma_mode
;
1177 struct nfs41_bind_conn_to_session_res
{
1178 struct nfs4_sessionid sessionid
;
1180 bool use_conn_in_rdma_mode
;
1183 struct nfs41_exchange_id_res
{
1187 struct nfs41_server_owner
*server_owner
;
1188 struct nfs41_server_scope
*server_scope
;
1189 struct nfs41_impl_id
*impl_id
;
1190 struct nfs41_state_protection state_protect
;
1193 struct nfs41_create_session_args
{
1194 struct nfs_client
*client
;
1198 uint32_t cb_program
;
1199 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1200 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1203 struct nfs41_create_session_res
{
1204 struct nfs4_sessionid sessionid
;
1207 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1208 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1211 struct nfs41_reclaim_complete_args
{
1212 struct nfs4_sequence_args seq_args
;
1213 /* In the future extend to include curr_fh for use with migration */
1214 unsigned char one_fs
:1;
1217 struct nfs41_reclaim_complete_res
{
1218 struct nfs4_sequence_res seq_res
;
1221 #define SECINFO_STYLE_CURRENT_FH 0
1222 #define SECINFO_STYLE_PARENT 1
1223 struct nfs41_secinfo_no_name_args
{
1224 struct nfs4_sequence_args seq_args
;
1228 struct nfs41_test_stateid_args
{
1229 struct nfs4_sequence_args seq_args
;
1230 nfs4_stateid
*stateid
;
1233 struct nfs41_test_stateid_res
{
1234 struct nfs4_sequence_res seq_res
;
1235 unsigned int status
;
1238 struct nfs41_free_stateid_args
{
1239 struct nfs4_sequence_args seq_args
;
1240 nfs4_stateid stateid
;
1243 struct nfs41_free_stateid_res
{
1244 struct nfs4_sequence_res seq_res
;
1245 unsigned int status
;
1249 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info
*cinfo
)
1251 kfree(cinfo
->buckets
);
1256 struct pnfs_ds_commit_info
{
1260 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info
*cinfo
)
1264 #endif /* CONFIG_NFS_V4_1 */
1266 #ifdef CONFIG_NFS_V4_2
1267 struct nfs42_falloc_args
{
1268 struct nfs4_sequence_args seq_args
;
1270 struct nfs_fh
*falloc_fh
;
1271 nfs4_stateid falloc_stateid
;
1276 struct nfs42_falloc_res
{
1277 struct nfs4_sequence_res seq_res
;
1278 unsigned int status
;
1281 struct nfs42_seek_args
{
1282 struct nfs4_sequence_args seq_args
;
1284 struct nfs_fh
*sa_fh
;
1285 nfs4_stateid sa_stateid
;
1290 struct nfs42_seek_res
{
1291 struct nfs4_sequence_res seq_res
;
1292 unsigned int status
;
1301 #define NFS_PAGEVEC_SIZE (8U)
1303 struct nfs_page_array
{
1304 struct page
**pagevec
;
1305 unsigned int npages
; /* Max length of pagevec */
1306 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1309 /* used as flag bits in nfs_pgio_header */
1311 NFS_IOHDR_ERROR
= 0,
1316 struct nfs_pgio_header
{
1317 struct inode
*inode
;
1318 struct rpc_cred
*cred
;
1319 struct list_head pages
;
1320 struct nfs_page
*req
;
1321 struct nfs_writeverf verf
; /* Used for writes */
1322 struct pnfs_layout_segment
*lseg
;
1324 const struct rpc_call_ops
*mds_ops
;
1325 void (*release
) (struct nfs_pgio_header
*hdr
);
1326 const struct nfs_pgio_completion_ops
*completion_ops
;
1327 const struct nfs_rw_ops
*rw_ops
;
1328 struct nfs_direct_req
*dreq
;
1329 void *layout_private
;
1331 /* fields protected by lock */
1333 int error
; /* merge with pnfs_error */
1334 unsigned long good_bytes
; /* boundary of good data */
1335 unsigned long flags
;
1340 struct rpc_task task
;
1341 struct nfs_fattr fattr
;
1342 struct nfs_pgio_args args
; /* argument struct */
1343 struct nfs_pgio_res res
; /* result struct */
1344 unsigned long timestamp
; /* For lease renewal */
1345 int (*pgio_done_cb
)(struct rpc_task
*, struct nfs_pgio_header
*);
1346 __u64 mds_offset
; /* Filelayout dense stripe */
1347 struct nfs_page_array page_array
;
1348 struct nfs_client
*ds_clp
; /* pNFS data server */
1349 int ds_commit_idx
; /* ds index if ds_clp is set */
1350 int pgio_mirror_idx
;/* mirror index in pgio layer */
1353 struct nfs_mds_commit_info
{
1355 unsigned long ncommit
;
1356 struct list_head list
;
1359 struct nfs_commit_data
;
1361 struct nfs_commit_completion_ops
{
1362 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1363 void (*completion
) (struct nfs_commit_data
*data
);
1366 struct nfs_commit_info
{
1367 spinlock_t
*lock
; /* inode->i_lock */
1368 struct nfs_mds_commit_info
*mds
;
1369 struct pnfs_ds_commit_info
*ds
;
1370 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1371 const struct nfs_commit_completion_ops
*completion_ops
;
1374 struct nfs_commit_data
{
1375 struct rpc_task task
;
1376 struct inode
*inode
;
1377 struct rpc_cred
*cred
;
1378 struct nfs_fattr fattr
;
1379 struct nfs_writeverf verf
;
1380 struct list_head pages
; /* Coalesced requests we wish to flush */
1381 struct list_head list
; /* lists of struct nfs_write_data */
1382 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1383 struct nfs_commitargs args
; /* argument struct */
1384 struct nfs_commitres res
; /* result struct */
1385 struct nfs_open_context
*context
;
1386 struct pnfs_layout_segment
*lseg
;
1387 struct nfs_client
*ds_clp
; /* pNFS data server */
1388 int ds_commit_index
;
1390 const struct rpc_call_ops
*mds_ops
;
1391 const struct nfs_commit_completion_ops
*completion_ops
;
1392 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1395 struct nfs_pgio_completion_ops
{
1396 void (*error_cleanup
)(struct list_head
*head
);
1397 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1398 void (*completion
)(struct nfs_pgio_header
*hdr
);
1401 struct nfs_unlinkdata
{
1402 struct hlist_node list
;
1403 struct nfs_removeargs args
;
1404 struct nfs_removeres res
;
1406 struct rpc_cred
*cred
;
1407 struct nfs_fattr dir_attr
;
1411 struct nfs_renamedata
{
1412 struct nfs_renameargs args
;
1413 struct nfs_renameres res
;
1414 struct rpc_cred
*cred
;
1415 struct inode
*old_dir
;
1416 struct dentry
*old_dentry
;
1417 struct nfs_fattr old_fattr
;
1418 struct inode
*new_dir
;
1419 struct dentry
*new_dentry
;
1420 struct nfs_fattr new_fattr
;
1421 void (*complete
)(struct rpc_task
*, struct nfs_renamedata
*);
1425 struct nfs_access_entry
;
1428 struct nfs_subversion
;
1429 struct nfs_mount_info
;
1430 struct nfs_client_initdata
;
1431 struct nfs_pageio_descriptor
;
1434 * RPC procedure vector for NFSv2/NFSv3 demuxing
1436 struct nfs_rpc_ops
{
1437 u32 version
; /* Protocol version */
1438 const struct dentry_operations
*dentry_ops
;
1439 const struct inode_operations
*dir_inode_ops
;
1440 const struct inode_operations
*file_inode_ops
;
1441 const struct file_operations
*file_ops
;
1443 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1444 struct nfs_fsinfo
*);
1445 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1446 struct nfs_fh
*, struct nfs_fattr
*);
1447 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1448 struct nfs_subversion
*);
1449 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1450 struct nfs_fattr
*, struct nfs4_label
*);
1451 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1453 int (*lookup
) (struct inode
*, struct qstr
*,
1454 struct nfs_fh
*, struct nfs_fattr
*,
1455 struct nfs4_label
*);
1456 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1457 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1459 int (*create
) (struct inode
*, struct dentry
*,
1460 struct iattr
*, int);
1461 int (*remove
) (struct inode
*, struct qstr
*);
1462 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1463 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1464 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1465 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1466 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1467 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1468 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1469 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1470 unsigned int, struct iattr
*);
1471 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1472 int (*rmdir
) (struct inode
*, struct qstr
*);
1473 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1474 u64
, struct page
**, unsigned int, int);
1475 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1477 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1478 struct nfs_fsstat
*);
1479 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1480 struct nfs_fsinfo
*);
1481 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1482 struct nfs_pathconf
*);
1483 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1484 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1485 int (*pgio_rpc_prepare
)(struct rpc_task
*,
1486 struct nfs_pgio_header
*);
1487 void (*read_setup
)(struct nfs_pgio_header
*, struct rpc_message
*);
1488 int (*read_done
)(struct rpc_task
*, struct nfs_pgio_header
*);
1489 void (*write_setup
)(struct nfs_pgio_header
*, struct rpc_message
*);
1490 int (*write_done
)(struct rpc_task
*, struct nfs_pgio_header
*);
1491 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1492 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1493 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1494 int (*lock
)(struct file
*, int, struct file_lock
*);
1495 int (*lock_check_bounds
)(const struct file_lock
*);
1496 void (*clear_acl_cache
)(struct inode
*);
1497 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1498 struct inode
* (*open_context
) (struct inode
*dir
,
1499 struct nfs_open_context
*ctx
,
1501 struct iattr
*iattr
,
1503 int (*have_delegation
)(struct inode
*, fmode_t
);
1504 int (*return_delegation
)(struct inode
*);
1505 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1507 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1509 void (*free_client
) (struct nfs_client
*);
1510 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1511 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1512 struct nfs_fattr
*, rpc_authflavor_t
);
1516 * NFS_CALL(getattr, inode, (fattr));
1518 * NFS_PROTO(inode)->getattr(fattr);
1520 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1523 * Function vectors etc. for the NFS client
1525 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1526 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1527 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1528 extern const struct rpc_version nfs_version2
;
1529 extern const struct rpc_version nfs_version3
;
1530 extern const struct rpc_version nfs_version4
;
1532 extern const struct rpc_version nfsacl_version3
;
1533 extern const struct rpc_program nfsacl_program
;