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
;
594 /* parsed sec= options */
595 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
596 struct nfs_auth_info
{
597 unsigned int flavor_len
;
598 rpc_authflavor_t flavors
[NFS_AUTH_INFO_MAX_FLAVORS
];
602 * Argument struct for decode_entry function
612 struct nfs_fattr
* fattr
;
613 struct nfs4_label
*label
;
614 unsigned char d_type
;
615 struct nfs_server
* server
;
619 * The following types are for NFSv2 only.
621 struct nfs_sattrargs
{
623 struct iattr
* sattr
;
626 struct nfs_diropargs
{
632 struct nfs_createargs
{
636 struct iattr
* sattr
;
639 struct nfs_setattrargs
{
640 struct nfs4_sequence_args seq_args
;
642 nfs4_stateid stateid
;
644 const struct nfs_server
* server
; /* Needed for name mapping */
646 const struct nfs4_label
*label
;
649 struct nfs_setaclargs
{
650 struct nfs4_sequence_args seq_args
;
653 unsigned int acl_pgbase
;
654 struct page
** acl_pages
;
657 struct nfs_setaclres
{
658 struct nfs4_sequence_res seq_res
;
661 struct nfs_getaclargs
{
662 struct nfs4_sequence_args seq_args
;
665 unsigned int acl_pgbase
;
666 struct page
** acl_pages
;
669 /* getxattr ACL interface flags */
670 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
671 struct nfs_getaclres
{
672 struct nfs4_sequence_res seq_res
;
674 size_t acl_data_offset
;
676 struct page
* acl_scratch
;
679 struct nfs_setattrres
{
680 struct nfs4_sequence_res seq_res
;
681 struct nfs_fattr
* fattr
;
682 struct nfs4_label
*label
;
683 const struct nfs_server
* server
;
686 struct nfs_linkargs
{
687 struct nfs_fh
* fromfh
;
688 struct nfs_fh
* tofh
;
693 struct nfs_symlinkargs
{
694 struct nfs_fh
* fromfh
;
695 const char * fromname
;
696 unsigned int fromlen
;
697 struct page
** pages
;
698 unsigned int pathlen
;
699 struct iattr
* sattr
;
702 struct nfs_readdirargs
{
706 struct page
** pages
;
709 struct nfs3_getaclargs
{
712 struct page
** pages
;
715 struct nfs3_setaclargs
{
716 struct inode
* inode
;
718 struct posix_acl
* acl_access
;
719 struct posix_acl
* acl_default
;
722 struct page
** pages
;
727 struct nfs_fattr
* fattr
;
730 struct nfs_readlinkargs
{
734 struct page
** pages
;
737 struct nfs3_sattrargs
{
739 struct iattr
* sattr
;
741 struct timespec guardtime
;
744 struct nfs3_diropargs
{
750 struct nfs3_accessargs
{
755 struct nfs3_createargs
{
759 struct iattr
* sattr
;
760 enum nfs3_createmode createmode
;
764 struct nfs3_mkdirargs
{
768 struct iattr
* sattr
;
771 struct nfs3_symlinkargs
{
772 struct nfs_fh
* fromfh
;
773 const char * fromname
;
774 unsigned int fromlen
;
775 struct page
** pages
;
776 unsigned int pathlen
;
777 struct iattr
* sattr
;
780 struct nfs3_mknodargs
{
784 enum nfs3_ftype type
;
785 struct iattr
* sattr
;
789 struct nfs3_linkargs
{
790 struct nfs_fh
* fromfh
;
791 struct nfs_fh
* tofh
;
796 struct nfs3_readdirargs
{
802 struct page
** pages
;
805 struct nfs3_diropres
{
806 struct nfs_fattr
* dir_attr
;
808 struct nfs_fattr
* fattr
;
811 struct nfs3_accessres
{
812 struct nfs_fattr
* fattr
;
816 struct nfs3_readlinkargs
{
820 struct page
** pages
;
823 struct nfs3_linkres
{
824 struct nfs_fattr
* dir_attr
;
825 struct nfs_fattr
* fattr
;
828 struct nfs3_readdirres
{
829 struct nfs_fattr
* dir_attr
;
834 struct nfs3_getaclres
{
835 struct nfs_fattr
* fattr
;
837 unsigned int acl_access_count
;
838 unsigned int acl_default_count
;
839 struct posix_acl
* acl_access
;
840 struct posix_acl
* acl_default
;
843 #if IS_ENABLED(CONFIG_NFS_V4)
845 typedef u64 clientid4
;
847 struct nfs4_accessargs
{
848 struct nfs4_sequence_args seq_args
;
849 const struct nfs_fh
* fh
;
854 struct nfs4_accessres
{
855 struct nfs4_sequence_res seq_res
;
856 const struct nfs_server
* server
;
857 struct nfs_fattr
* fattr
;
862 struct nfs4_create_arg
{
863 struct nfs4_sequence_args seq_args
;
867 struct page
** pages
;
869 } symlink
; /* NF4LNK */
873 } device
; /* NF4BLK, NF4CHR */
875 const struct qstr
* name
;
876 const struct nfs_server
* server
;
877 const struct iattr
* attrs
;
878 const struct nfs_fh
* dir_fh
;
880 const struct nfs4_label
*label
;
883 struct nfs4_create_res
{
884 struct nfs4_sequence_res seq_res
;
885 const struct nfs_server
* server
;
887 struct nfs_fattr
* fattr
;
888 struct nfs4_label
*label
;
889 struct nfs4_change_info dir_cinfo
;
892 struct nfs4_fsinfo_arg
{
893 struct nfs4_sequence_args seq_args
;
894 const struct nfs_fh
* fh
;
898 struct nfs4_fsinfo_res
{
899 struct nfs4_sequence_res seq_res
;
900 struct nfs_fsinfo
*fsinfo
;
903 struct nfs4_getattr_arg
{
904 struct nfs4_sequence_args seq_args
;
905 const struct nfs_fh
* fh
;
909 struct nfs4_getattr_res
{
910 struct nfs4_sequence_res seq_res
;
911 const struct nfs_server
* server
;
912 struct nfs_fattr
* fattr
;
913 struct nfs4_label
*label
;
916 struct nfs4_link_arg
{
917 struct nfs4_sequence_args seq_args
;
918 const struct nfs_fh
* fh
;
919 const struct nfs_fh
* dir_fh
;
920 const struct qstr
* name
;
924 struct nfs4_link_res
{
925 struct nfs4_sequence_res seq_res
;
926 const struct nfs_server
* server
;
927 struct nfs_fattr
* fattr
;
928 struct nfs4_label
*label
;
929 struct nfs4_change_info cinfo
;
930 struct nfs_fattr
* dir_attr
;
934 struct nfs4_lookup_arg
{
935 struct nfs4_sequence_args seq_args
;
936 const struct nfs_fh
* dir_fh
;
937 const struct qstr
* name
;
941 struct nfs4_lookup_res
{
942 struct nfs4_sequence_res seq_res
;
943 const struct nfs_server
* server
;
944 struct nfs_fattr
* fattr
;
946 struct nfs4_label
*label
;
949 struct nfs4_lookup_root_arg
{
950 struct nfs4_sequence_args seq_args
;
954 struct nfs4_pathconf_arg
{
955 struct nfs4_sequence_args seq_args
;
956 const struct nfs_fh
* fh
;
960 struct nfs4_pathconf_res
{
961 struct nfs4_sequence_res seq_res
;
962 struct nfs_pathconf
*pathconf
;
965 struct nfs4_readdir_arg
{
966 struct nfs4_sequence_args seq_args
;
967 const struct nfs_fh
* fh
;
969 nfs4_verifier verifier
;
971 struct page
** pages
; /* zero-copy data */
972 unsigned int pgbase
; /* zero-copy data */
977 struct nfs4_readdir_res
{
978 struct nfs4_sequence_res seq_res
;
979 nfs4_verifier verifier
;
983 struct nfs4_readlink
{
984 struct nfs4_sequence_args seq_args
;
985 const struct nfs_fh
* fh
;
987 unsigned int pglen
; /* zero-copy data */
988 struct page
** pages
; /* zero-copy data */
991 struct nfs4_readlink_res
{
992 struct nfs4_sequence_res seq_res
;
995 #define NFS4_SETCLIENTID_NAMELEN (127)
996 struct nfs4_setclientid
{
997 const nfs4_verifier
* sc_verifier
;
998 unsigned int sc_name_len
;
999 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
1001 unsigned int sc_netid_len
;
1002 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
1003 unsigned int sc_uaddr_len
;
1004 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
1008 struct nfs4_setclientid_res
{
1010 nfs4_verifier confirm
;
1013 struct nfs4_statfs_arg
{
1014 struct nfs4_sequence_args seq_args
;
1015 const struct nfs_fh
* fh
;
1016 const u32
* bitmask
;
1019 struct nfs4_statfs_res
{
1020 struct nfs4_sequence_res seq_res
;
1021 struct nfs_fsstat
*fsstat
;
1024 struct nfs4_server_caps_arg
{
1025 struct nfs4_sequence_args seq_args
;
1026 struct nfs_fh
*fhandle
;
1029 struct nfs4_server_caps_res
{
1030 struct nfs4_sequence_res seq_res
;
1031 u32 attr_bitmask
[3];
1038 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1039 struct nfs4_pathname
{
1040 unsigned int ncomponents
;
1041 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1044 #define NFS4_FS_LOCATION_MAXSERVERS 10
1045 struct nfs4_fs_location
{
1046 unsigned int nservers
;
1047 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1048 struct nfs4_pathname rootpath
;
1051 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1052 struct nfs4_fs_locations
{
1053 struct nfs_fattr fattr
;
1054 const struct nfs_server
*server
;
1055 struct nfs4_pathname fs_path
;
1057 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1060 struct nfs4_fs_locations_arg
{
1061 struct nfs4_sequence_args seq_args
;
1062 const struct nfs_fh
*dir_fh
;
1063 const struct nfs_fh
*fh
;
1064 const struct qstr
*name
;
1068 unsigned char migration
:1, renew
:1;
1071 struct nfs4_fs_locations_res
{
1072 struct nfs4_sequence_res seq_res
;
1073 struct nfs4_fs_locations
*fs_locations
;
1074 unsigned char migration
:1, renew
:1;
1077 struct nfs4_secinfo4
{
1079 struct rpcsec_gss_info flavor_info
;
1082 struct nfs4_secinfo_flavors
{
1083 unsigned int num_flavors
;
1084 struct nfs4_secinfo4 flavors
[0];
1087 struct nfs4_secinfo_arg
{
1088 struct nfs4_sequence_args seq_args
;
1089 const struct nfs_fh
*dir_fh
;
1090 const struct qstr
*name
;
1093 struct nfs4_secinfo_res
{
1094 struct nfs4_sequence_res seq_res
;
1095 struct nfs4_secinfo_flavors
*flavors
;
1098 struct nfs4_fsid_present_arg
{
1099 struct nfs4_sequence_args seq_args
;
1100 const struct nfs_fh
*fh
;
1102 unsigned char renew
:1;
1105 struct nfs4_fsid_present_res
{
1106 struct nfs4_sequence_res seq_res
;
1108 unsigned char renew
:1;
1111 #endif /* CONFIG_NFS_V4 */
1118 #ifdef CONFIG_NFS_V4_1
1120 struct pnfs_commit_bucket
{
1121 struct list_head written
;
1122 struct list_head committing
;
1123 struct pnfs_layout_segment
*wlseg
;
1124 struct pnfs_layout_segment
*clseg
;
1127 struct pnfs_ds_commit_info
{
1131 struct pnfs_commit_bucket
*buckets
;
1134 #define NFS4_OP_MAP_NUM_LONGS \
1135 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1136 #define NFS4_OP_MAP_NUM_WORDS \
1137 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1138 struct nfs4_op_map
{
1140 unsigned long longs
[NFS4_OP_MAP_NUM_LONGS
];
1141 u32 words
[NFS4_OP_MAP_NUM_WORDS
];
1145 struct nfs41_state_protection
{
1147 struct nfs4_op_map enforce
;
1148 struct nfs4_op_map allow
;
1151 #define NFS4_EXCHANGE_ID_LEN (48)
1152 struct nfs41_exchange_id_args
{
1153 struct nfs_client
*client
;
1154 nfs4_verifier
*verifier
;
1155 unsigned int id_len
;
1156 char id
[NFS4_EXCHANGE_ID_LEN
];
1158 struct nfs41_state_protection state_protect
;
1161 struct nfs41_server_owner
{
1163 uint32_t major_id_sz
;
1164 char major_id
[NFS4_OPAQUE_LIMIT
];
1167 struct nfs41_server_scope
{
1168 uint32_t server_scope_sz
;
1169 char server_scope
[NFS4_OPAQUE_LIMIT
];
1172 struct nfs41_impl_id
{
1173 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1174 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1175 struct nfstime4 date
;
1178 struct nfs41_bind_conn_to_session_res
{
1179 struct nfs4_session
*session
;
1181 bool use_conn_in_rdma_mode
;
1184 struct nfs41_exchange_id_res
{
1188 struct nfs41_server_owner
*server_owner
;
1189 struct nfs41_server_scope
*server_scope
;
1190 struct nfs41_impl_id
*impl_id
;
1191 struct nfs41_state_protection state_protect
;
1194 struct nfs41_create_session_args
{
1195 struct nfs_client
*client
;
1197 uint32_t cb_program
;
1198 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1199 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1202 struct nfs41_create_session_res
{
1203 struct nfs_client
*client
;
1206 struct nfs41_reclaim_complete_args
{
1207 struct nfs4_sequence_args seq_args
;
1208 /* In the future extend to include curr_fh for use with migration */
1209 unsigned char one_fs
:1;
1212 struct nfs41_reclaim_complete_res
{
1213 struct nfs4_sequence_res seq_res
;
1216 #define SECINFO_STYLE_CURRENT_FH 0
1217 #define SECINFO_STYLE_PARENT 1
1218 struct nfs41_secinfo_no_name_args
{
1219 struct nfs4_sequence_args seq_args
;
1223 struct nfs41_test_stateid_args
{
1224 struct nfs4_sequence_args seq_args
;
1225 nfs4_stateid
*stateid
;
1228 struct nfs41_test_stateid_res
{
1229 struct nfs4_sequence_res seq_res
;
1230 unsigned int status
;
1233 struct nfs41_free_stateid_args
{
1234 struct nfs4_sequence_args seq_args
;
1235 nfs4_stateid stateid
;
1238 struct nfs41_free_stateid_res
{
1239 struct nfs4_sequence_res seq_res
;
1240 unsigned int status
;
1245 struct pnfs_ds_commit_info
{
1248 #endif /* CONFIG_NFS_V4_1 */
1252 #define NFS_PAGEVEC_SIZE (8U)
1254 struct nfs_page_array
{
1255 struct page
**pagevec
;
1256 unsigned int npages
; /* Max length of pagevec */
1257 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1260 struct nfs_read_data
{
1261 struct nfs_pgio_header
*header
;
1262 struct list_head list
;
1263 struct rpc_task task
;
1264 struct nfs_fattr fattr
; /* fattr storage */
1265 struct nfs_readargs args
;
1266 struct nfs_readres res
;
1267 unsigned long timestamp
; /* For lease renewal */
1268 int (*read_done_cb
) (struct rpc_task
*task
, struct nfs_read_data
*data
);
1270 struct nfs_page_array pages
;
1271 struct nfs_client
*ds_clp
; /* pNFS data server */
1274 /* used as flag bits in nfs_pgio_header */
1276 NFS_IOHDR_ERROR
= 0,
1279 NFS_IOHDR_NEED_COMMIT
,
1280 NFS_IOHDR_NEED_RESCHED
,
1283 struct nfs_pgio_header
{
1284 struct inode
*inode
;
1285 struct rpc_cred
*cred
;
1286 struct list_head pages
;
1287 struct list_head rpc_list
;
1289 struct nfs_page
*req
;
1290 struct nfs_writeverf
*verf
;
1291 struct pnfs_layout_segment
*lseg
;
1293 const struct rpc_call_ops
*mds_ops
;
1294 void (*release
) (struct nfs_pgio_header
*hdr
);
1295 const struct nfs_pgio_completion_ops
*completion_ops
;
1296 struct nfs_direct_req
*dreq
;
1297 void *layout_private
;
1299 /* fields protected by lock */
1301 int error
; /* merge with pnfs_error */
1302 unsigned long good_bytes
; /* boundary of good data */
1303 unsigned long flags
;
1306 struct nfs_read_header
{
1307 struct nfs_pgio_header header
;
1308 struct nfs_read_data rpc_data
;
1311 struct nfs_write_data
{
1312 struct nfs_pgio_header
*header
;
1313 struct list_head list
;
1314 struct rpc_task task
;
1315 struct nfs_fattr fattr
;
1316 struct nfs_writeverf verf
;
1317 struct nfs_writeargs args
; /* argument struct */
1318 struct nfs_writeres res
; /* result struct */
1319 unsigned long timestamp
; /* For lease renewal */
1320 int (*write_done_cb
) (struct rpc_task
*task
, struct nfs_write_data
*data
);
1321 __u64 mds_offset
; /* Filelayout dense stripe */
1322 struct nfs_page_array pages
;
1323 struct nfs_client
*ds_clp
; /* pNFS data server */
1326 struct nfs_write_header
{
1327 struct nfs_pgio_header header
;
1328 struct nfs_write_data rpc_data
;
1329 struct nfs_writeverf verf
;
1332 struct nfs_mds_commit_info
{
1334 unsigned long ncommit
;
1335 struct list_head list
;
1338 struct nfs_commit_data
;
1340 struct nfs_commit_completion_ops
{
1341 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1342 void (*completion
) (struct nfs_commit_data
*data
);
1345 struct nfs_commit_info
{
1347 struct nfs_mds_commit_info
*mds
;
1348 struct pnfs_ds_commit_info
*ds
;
1349 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1350 const struct nfs_commit_completion_ops
*completion_ops
;
1353 struct nfs_commit_data
{
1354 struct rpc_task task
;
1355 struct inode
*inode
;
1356 struct rpc_cred
*cred
;
1357 struct nfs_fattr fattr
;
1358 struct nfs_writeverf verf
;
1359 struct list_head pages
; /* Coalesced requests we wish to flush */
1360 struct list_head list
; /* lists of struct nfs_write_data */
1361 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1362 struct nfs_commitargs args
; /* argument struct */
1363 struct nfs_commitres res
; /* result struct */
1364 struct nfs_open_context
*context
;
1365 struct pnfs_layout_segment
*lseg
;
1366 struct nfs_client
*ds_clp
; /* pNFS data server */
1367 int ds_commit_index
;
1368 const struct rpc_call_ops
*mds_ops
;
1369 const struct nfs_commit_completion_ops
*completion_ops
;
1370 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1373 struct nfs_pgio_completion_ops
{
1374 void (*error_cleanup
)(struct list_head
*head
);
1375 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1376 void (*completion
)(struct nfs_pgio_header
*hdr
);
1379 struct nfs_unlinkdata
{
1380 struct hlist_node list
;
1381 struct nfs_removeargs args
;
1382 struct nfs_removeres res
;
1384 struct rpc_cred
*cred
;
1385 struct nfs_fattr dir_attr
;
1388 struct nfs_renamedata
{
1389 struct nfs_renameargs args
;
1390 struct nfs_renameres res
;
1391 struct rpc_cred
*cred
;
1392 struct inode
*old_dir
;
1393 struct dentry
*old_dentry
;
1394 struct nfs_fattr old_fattr
;
1395 struct inode
*new_dir
;
1396 struct dentry
*new_dentry
;
1397 struct nfs_fattr new_fattr
;
1400 struct nfs_access_entry
;
1403 struct nfs_subversion
;
1404 struct nfs_mount_info
;
1405 struct nfs_client_initdata
;
1406 struct nfs_pageio_descriptor
;
1409 * RPC procedure vector for NFSv2/NFSv3 demuxing
1411 struct nfs_rpc_ops
{
1412 u32 version
; /* Protocol version */
1413 const struct dentry_operations
*dentry_ops
;
1414 const struct inode_operations
*dir_inode_ops
;
1415 const struct inode_operations
*file_inode_ops
;
1416 const struct file_operations
*file_ops
;
1418 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1419 struct nfs_fsinfo
*);
1420 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1421 struct nfs_fh
*, struct nfs_fattr
*);
1422 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1423 struct nfs_subversion
*);
1424 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1425 struct nfs_fattr
*, struct nfs4_label
*);
1426 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1428 int (*lookup
) (struct inode
*, struct qstr
*,
1429 struct nfs_fh
*, struct nfs_fattr
*,
1430 struct nfs4_label
*);
1431 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1432 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1434 int (*create
) (struct inode
*, struct dentry
*,
1435 struct iattr
*, int);
1436 int (*remove
) (struct inode
*, struct qstr
*);
1437 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1438 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1439 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1440 int (*rename
) (struct inode
*, struct qstr
*,
1441 struct inode
*, struct qstr
*);
1442 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1443 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1444 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1445 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1446 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1447 unsigned int, struct iattr
*);
1448 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1449 int (*rmdir
) (struct inode
*, struct qstr
*);
1450 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1451 u64
, struct page
**, unsigned int, int);
1452 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1454 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1455 struct nfs_fsstat
*);
1456 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1457 struct nfs_fsinfo
*);
1458 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1459 struct nfs_pathconf
*);
1460 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1461 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1462 void (*read_setup
) (struct nfs_read_data
*, struct rpc_message
*);
1463 void (*read_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*,
1464 const struct nfs_pgio_completion_ops
*);
1465 int (*read_rpc_prepare
)(struct rpc_task
*, struct nfs_read_data
*);
1466 int (*read_done
) (struct rpc_task
*, struct nfs_read_data
*);
1467 void (*write_setup
) (struct nfs_write_data
*, struct rpc_message
*);
1468 void (*write_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*, int,
1469 const struct nfs_pgio_completion_ops
*);
1470 int (*write_rpc_prepare
)(struct rpc_task
*, struct nfs_write_data
*);
1471 int (*write_done
) (struct rpc_task
*, struct nfs_write_data
*);
1472 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1473 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1474 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1475 int (*lock
)(struct file
*, int, struct file_lock
*);
1476 int (*lock_check_bounds
)(const struct file_lock
*);
1477 void (*clear_acl_cache
)(struct inode
*);
1478 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1479 struct inode
* (*open_context
) (struct inode
*dir
,
1480 struct nfs_open_context
*ctx
,
1482 struct iattr
*iattr
,
1484 int (*have_delegation
)(struct inode
*, fmode_t
);
1485 int (*return_delegation
)(struct inode
*);
1486 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1488 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1490 void (*free_client
) (struct nfs_client
*);
1491 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1492 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1493 struct nfs_fattr
*, rpc_authflavor_t
);
1497 * NFS_CALL(getattr, inode, (fattr));
1499 * NFS_PROTO(inode)->getattr(fattr);
1501 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1504 * Function vectors etc. for the NFS client
1506 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1507 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1508 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1509 extern const struct rpc_version nfs_version2
;
1510 extern const struct rpc_version nfs_version3
;
1511 extern const struct rpc_version nfs_version4
;
1513 extern const struct rpc_version nfsacl_version3
;
1514 extern const struct rpc_program nfsacl_program
;