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)
17 /* Forward declaration for NFS v3 */
18 struct nfs4_secinfo_flavors
;
31 * Helper for checking equality between 2 fsids.
33 static inline int nfs_fsid_equal(const struct nfs_fsid
*a
, const struct nfs_fsid
*b
)
35 return a
->major
== b
->major
&& a
->minor
== b
->minor
;
38 struct nfs4_threshold
{
48 unsigned int valid
; /* which fields are valid */
66 __u64 mounted_on_fileid
;
67 struct timespec atime
;
68 struct timespec mtime
;
69 struct timespec ctime
;
70 __u64 change_attr
; /* NFSv4 change attribute */
71 __u64 pre_change_attr
;/* pre-op NFSv4 change attribute */
72 __u64 pre_size
; /* pre_op_attr.size */
73 struct timespec pre_mtime
; /* pre_op_attr.mtime */
74 struct timespec pre_ctime
; /* pre_op_attr.ctime */
75 unsigned long time_start
;
76 unsigned long gencount
;
77 struct nfs4_string
*owner_name
;
78 struct nfs4_string
*group_name
;
79 struct nfs4_threshold
*mdsthreshold
; /* pNFS threshold hints */
82 #define NFS_ATTR_FATTR_TYPE (1U << 0)
83 #define NFS_ATTR_FATTR_MODE (1U << 1)
84 #define NFS_ATTR_FATTR_NLINK (1U << 2)
85 #define NFS_ATTR_FATTR_OWNER (1U << 3)
86 #define NFS_ATTR_FATTR_GROUP (1U << 4)
87 #define NFS_ATTR_FATTR_RDEV (1U << 5)
88 #define NFS_ATTR_FATTR_SIZE (1U << 6)
89 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
90 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
91 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
92 #define NFS_ATTR_FATTR_FSID (1U << 10)
93 #define NFS_ATTR_FATTR_FILEID (1U << 11)
94 #define NFS_ATTR_FATTR_ATIME (1U << 12)
95 #define NFS_ATTR_FATTR_MTIME (1U << 13)
96 #define NFS_ATTR_FATTR_CTIME (1U << 14)
97 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
98 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
99 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
100 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
101 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
102 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
103 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
104 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
105 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
106 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
108 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
109 | NFS_ATTR_FATTR_MODE \
110 | NFS_ATTR_FATTR_NLINK \
111 | NFS_ATTR_FATTR_OWNER \
112 | NFS_ATTR_FATTR_GROUP \
113 | NFS_ATTR_FATTR_RDEV \
114 | NFS_ATTR_FATTR_SIZE \
115 | NFS_ATTR_FATTR_FSID \
116 | NFS_ATTR_FATTR_FILEID \
117 | NFS_ATTR_FATTR_ATIME \
118 | NFS_ATTR_FATTR_MTIME \
119 | NFS_ATTR_FATTR_CTIME \
120 | NFS_ATTR_FATTR_CHANGE)
121 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_BLOCKS_USED)
123 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED)
125 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
126 | NFS_ATTR_FATTR_SPACE_USED)
129 * Info on the file system
132 struct nfs_fattr
*fattr
; /* Post-op attributes */
133 __u32 rtmax
; /* max. read transfer size */
134 __u32 rtpref
; /* pref. read transfer size */
135 __u32 rtmult
; /* reads should be multiple of this */
136 __u32 wtmax
; /* max. write transfer size */
137 __u32 wtpref
; /* pref. write transfer size */
138 __u32 wtmult
; /* writes should be multiple of this */
139 __u32 dtpref
; /* pref. readdir transfer size */
141 struct timespec time_delta
; /* server time granularity */
142 __u32 lease_time
; /* in seconds */
143 __u32 layouttype
; /* supported pnfs layout driver */
144 __u32 blksize
; /* preferred pnfs io block size */
148 struct nfs_fattr
*fattr
; /* Post-op attributes */
149 __u64 tbytes
; /* total size in bytes */
150 __u64 fbytes
; /* # of free bytes */
151 __u64 abytes
; /* # of bytes available to user */
152 __u64 tfiles
; /* # of files */
153 __u64 ffiles
; /* # of free files */
154 __u64 afiles
; /* # of files available to user */
158 __u32 tsize
; /* Server transfer size */
159 __u32 bsize
; /* Filesystem block size */
160 __u32 blocks
; /* No. of "bsize" blocks on filesystem */
161 __u32 bfree
; /* No. of free "bsize" blocks */
162 __u32 bavail
; /* No. of available "bsize" blocks */
165 struct nfs_pathconf
{
166 struct nfs_fattr
*fattr
; /* Post-op attributes */
167 __u32 max_link
; /* max # of hard links */
168 __u32 max_namelen
; /* max name length */
171 struct nfs4_change_info
{
179 /* nfs41 sessions channel attributes */
180 struct nfs4_channel_attrs
{
183 u32 max_resp_sz_cached
;
188 /* nfs41 sessions slot seqid */
193 struct nfs4_sequence_args
{
194 struct nfs4_session
*sa_session
;
199 struct nfs4_sequence_res
{
200 struct nfs4_session
*sr_session
;
201 struct nfs4_slot
*sr_slot
; /* slot used to send request */
202 int sr_status
; /* sequence operation status */
203 unsigned long sr_renewal_time
;
207 struct nfs4_get_lease_time_args
{
208 struct nfs4_sequence_args la_seq_args
;
211 struct nfs4_get_lease_time_res
{
212 struct nfs_fsinfo
*lr_fsinfo
;
213 struct nfs4_sequence_res lr_seq_res
;
216 #define PNFS_LAYOUT_MAXSIZE 4096
218 struct nfs4_layoutdriver_data
{
224 struct pnfs_layout_range
{
230 struct nfs4_layoutget_args
{
232 struct pnfs_layout_range range
;
236 struct nfs_open_context
*ctx
;
237 struct nfs4_sequence_args seq_args
;
238 nfs4_stateid stateid
;
239 struct nfs4_layoutdriver_data layout
;
242 struct nfs4_layoutget_res
{
243 __u32 return_on_close
;
244 struct pnfs_layout_range range
;
246 nfs4_stateid stateid
;
247 struct nfs4_sequence_res seq_res
;
248 struct nfs4_layoutdriver_data
*layoutp
;
251 struct nfs4_layoutget
{
252 struct nfs4_layoutget_args args
;
253 struct nfs4_layoutget_res res
;
257 struct nfs4_getdevicelist_args
{
258 const struct nfs_fh
*fh
;
260 struct nfs4_sequence_args seq_args
;
263 struct nfs4_getdevicelist_res
{
264 struct pnfs_devicelist
*devlist
;
265 struct nfs4_sequence_res seq_res
;
268 struct nfs4_getdeviceinfo_args
{
269 struct pnfs_device
*pdev
;
270 struct nfs4_sequence_args seq_args
;
273 struct nfs4_getdeviceinfo_res
{
274 struct pnfs_device
*pdev
;
275 struct nfs4_sequence_res seq_res
;
278 struct nfs4_layoutcommit_args
{
279 nfs4_stateid stateid
;
280 __u64 lastbytewritten
;
283 struct nfs4_sequence_args seq_args
;
286 struct nfs4_layoutcommit_res
{
287 struct nfs_fattr
*fattr
;
288 const struct nfs_server
*server
;
289 struct nfs4_sequence_res seq_res
;
293 struct nfs4_layoutcommit_data
{
294 struct rpc_task task
;
295 struct nfs_fattr fattr
;
296 struct list_head lseg_list
;
297 struct rpc_cred
*cred
;
298 struct nfs4_layoutcommit_args args
;
299 struct nfs4_layoutcommit_res res
;
302 struct nfs4_layoutreturn_args
{
303 struct pnfs_layout_hdr
*layout
;
305 nfs4_stateid stateid
;
307 struct nfs4_sequence_args seq_args
;
310 struct nfs4_layoutreturn_res
{
311 struct nfs4_sequence_res seq_res
;
313 nfs4_stateid stateid
;
316 struct nfs4_layoutreturn
{
317 struct nfs4_layoutreturn_args args
;
318 struct nfs4_layoutreturn_res res
;
319 struct rpc_cred
*cred
;
320 struct nfs_client
*clp
;
324 struct stateowner_id
{
330 * Arguments to the open call.
332 struct nfs_openargs
{
333 const struct nfs_fh
* fh
;
334 struct nfs_seqid
* seqid
;
339 struct stateowner_id id
;
342 struct iattr
* attrs
; /* UNCHECKED, GUARDED */
343 nfs4_verifier verifier
; /* EXCLUSIVE */
345 nfs4_stateid delegation
; /* CLAIM_DELEGATE_CUR */
346 fmode_t delegation_type
; /* CLAIM_PREVIOUS */
348 const struct qstr
* name
;
349 const struct nfs_server
*server
; /* Needed for ID mapping */
351 const u32
* open_bitmap
;
353 struct nfs4_sequence_args seq_args
;
357 nfs4_stateid stateid
;
359 struct nfs4_change_info cinfo
;
361 struct nfs_fattr
* f_attr
;
362 struct nfs_seqid
* seqid
;
363 const struct nfs_server
*server
;
364 fmode_t delegation_type
;
365 nfs4_stateid delegation
;
368 __u32 attrset
[NFS4_BITMAP_SIZE
];
369 struct nfs4_string
*owner
;
370 struct nfs4_string
*group_owner
;
371 struct nfs4_sequence_res seq_res
;
372 __u32 access_request
;
373 __u32 access_supported
;
378 * Arguments to the open_confirm call.
380 struct nfs_open_confirmargs
{
381 const struct nfs_fh
* fh
;
382 nfs4_stateid
* stateid
;
383 struct nfs_seqid
* seqid
;
386 struct nfs_open_confirmres
{
387 nfs4_stateid stateid
;
388 struct nfs_seqid
* seqid
;
392 * Arguments to the close call.
394 struct nfs_closeargs
{
396 nfs4_stateid
* stateid
;
397 struct nfs_seqid
* seqid
;
400 struct nfs4_sequence_args seq_args
;
403 struct nfs_closeres
{
404 nfs4_stateid stateid
;
405 struct nfs_fattr
* fattr
;
406 struct nfs_seqid
* seqid
;
407 const struct nfs_server
*server
;
408 struct nfs4_sequence_res seq_res
;
411 * * Arguments to the lock,lockt, and locku call.
419 struct nfs_lock_args
{
421 struct file_lock
* fl
;
422 struct nfs_seqid
* lock_seqid
;
423 nfs4_stateid
* lock_stateid
;
424 struct nfs_seqid
* open_seqid
;
425 nfs4_stateid
* open_stateid
;
426 struct nfs_lowner lock_owner
;
427 unsigned char block
: 1;
428 unsigned char reclaim
: 1;
429 unsigned char new_lock_owner
: 1;
430 struct nfs4_sequence_args seq_args
;
433 struct nfs_lock_res
{
434 nfs4_stateid stateid
;
435 struct nfs_seqid
* lock_seqid
;
436 struct nfs_seqid
* open_seqid
;
437 struct nfs4_sequence_res seq_res
;
440 struct nfs_locku_args
{
442 struct file_lock
* fl
;
443 struct nfs_seqid
* seqid
;
444 nfs4_stateid
* stateid
;
445 struct nfs4_sequence_args seq_args
;
448 struct nfs_locku_res
{
449 nfs4_stateid stateid
;
450 struct nfs_seqid
* seqid
;
451 struct nfs4_sequence_res seq_res
;
454 struct nfs_lockt_args
{
456 struct file_lock
* fl
;
457 struct nfs_lowner lock_owner
;
458 struct nfs4_sequence_args seq_args
;
461 struct nfs_lockt_res
{
462 struct file_lock
* denied
; /* LOCK, LOCKT failed */
463 struct nfs4_sequence_res seq_res
;
466 struct nfs_release_lockowner_args
{
467 struct nfs_lowner lock_owner
;
470 struct nfs4_delegreturnargs
{
471 const struct nfs_fh
*fhandle
;
472 const nfs4_stateid
*stateid
;
474 struct nfs4_sequence_args seq_args
;
477 struct nfs4_delegreturnres
{
478 struct nfs_fattr
* fattr
;
479 const struct nfs_server
*server
;
480 struct nfs4_sequence_res seq_res
;
484 * Arguments to the read call.
486 struct nfs_readargs
{
488 struct nfs_open_context
*context
;
489 struct nfs_lock_context
*lock_context
;
493 struct page
** pages
;
494 struct nfs4_sequence_args seq_args
;
498 struct nfs_fattr
* fattr
;
501 struct nfs4_sequence_res seq_res
;
505 * Arguments to the write call.
507 struct nfs_writeargs
{
509 struct nfs_open_context
*context
;
510 struct nfs_lock_context
*lock_context
;
513 enum nfs3_stable_how stable
;
515 struct page
** pages
;
517 struct nfs4_sequence_args seq_args
;
520 struct nfs_write_verifier
{
524 struct nfs_writeverf
{
525 struct nfs_write_verifier verifier
;
526 enum nfs3_stable_how committed
;
529 struct nfs_writeres
{
530 struct nfs_fattr
* fattr
;
531 struct nfs_writeverf
* verf
;
533 const struct nfs_server
*server
;
534 struct nfs4_sequence_res seq_res
;
538 * Arguments to the commit call.
540 struct nfs_commitargs
{
545 struct nfs4_sequence_args seq_args
;
548 struct nfs_commitres
{
549 struct nfs_fattr
*fattr
;
550 struct nfs_writeverf
*verf
;
551 const struct nfs_server
*server
;
552 struct nfs4_sequence_res seq_res
;
556 * Common arguments to the unlink call
558 struct nfs_removeargs
{
559 const struct nfs_fh
*fh
;
561 struct nfs4_sequence_args seq_args
;
564 struct nfs_removeres
{
565 const struct nfs_server
*server
;
566 struct nfs_fattr
*dir_attr
;
567 struct nfs4_change_info cinfo
;
568 struct nfs4_sequence_res seq_res
;
572 * Common arguments to the rename call
574 struct nfs_renameargs
{
575 const struct nfs_fh
*old_dir
;
576 const struct nfs_fh
*new_dir
;
577 const struct qstr
*old_name
;
578 const struct qstr
*new_name
;
579 struct nfs4_sequence_args seq_args
;
582 struct nfs_renameres
{
583 const struct nfs_server
*server
;
584 struct nfs4_change_info old_cinfo
;
585 struct nfs_fattr
*old_fattr
;
586 struct nfs4_change_info new_cinfo
;
587 struct nfs_fattr
*new_fattr
;
588 struct nfs4_sequence_res seq_res
;
592 * Argument struct for decode_entry function
602 struct nfs_fattr
* fattr
;
603 unsigned char d_type
;
604 struct nfs_server
* server
;
608 * The following types are for NFSv2 only.
610 struct nfs_sattrargs
{
612 struct iattr
* sattr
;
615 struct nfs_diropargs
{
621 struct nfs_createargs
{
625 struct iattr
* sattr
;
628 struct nfs_setattrargs
{
630 nfs4_stateid stateid
;
632 const struct nfs_server
* server
; /* Needed for name mapping */
634 struct nfs4_sequence_args seq_args
;
637 struct nfs_setaclargs
{
640 unsigned int acl_pgbase
;
641 struct page
** acl_pages
;
642 struct nfs4_sequence_args seq_args
;
645 struct nfs_setaclres
{
646 struct nfs4_sequence_res seq_res
;
649 struct nfs_getaclargs
{
652 unsigned int acl_pgbase
;
653 struct page
** acl_pages
;
654 struct nfs4_sequence_args seq_args
;
657 /* getxattr ACL interface flags */
658 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
659 struct nfs_getaclres
{
661 size_t acl_data_offset
;
663 struct page
* acl_scratch
;
664 struct nfs4_sequence_res seq_res
;
667 struct nfs_setattrres
{
668 struct nfs_fattr
* fattr
;
669 const struct nfs_server
* server
;
670 struct nfs4_sequence_res seq_res
;
673 struct nfs_linkargs
{
674 struct nfs_fh
* fromfh
;
675 struct nfs_fh
* tofh
;
680 struct nfs_symlinkargs
{
681 struct nfs_fh
* fromfh
;
682 const char * fromname
;
683 unsigned int fromlen
;
684 struct page
** pages
;
685 unsigned int pathlen
;
686 struct iattr
* sattr
;
689 struct nfs_readdirargs
{
693 struct page
** pages
;
696 struct nfs3_getaclargs
{
699 struct page
** pages
;
702 struct nfs3_setaclargs
{
703 struct inode
* inode
;
705 struct posix_acl
* acl_access
;
706 struct posix_acl
* acl_default
;
709 struct page
** pages
;
714 struct nfs_fattr
* fattr
;
717 struct nfs_readlinkargs
{
721 struct page
** pages
;
724 struct nfs3_sattrargs
{
726 struct iattr
* sattr
;
728 struct timespec guardtime
;
731 struct nfs3_diropargs
{
737 struct nfs3_accessargs
{
742 struct nfs3_createargs
{
746 struct iattr
* sattr
;
747 enum nfs3_createmode createmode
;
751 struct nfs3_mkdirargs
{
755 struct iattr
* sattr
;
758 struct nfs3_symlinkargs
{
759 struct nfs_fh
* fromfh
;
760 const char * fromname
;
761 unsigned int fromlen
;
762 struct page
** pages
;
763 unsigned int pathlen
;
764 struct iattr
* sattr
;
767 struct nfs3_mknodargs
{
771 enum nfs3_ftype type
;
772 struct iattr
* sattr
;
776 struct nfs3_linkargs
{
777 struct nfs_fh
* fromfh
;
778 struct nfs_fh
* tofh
;
783 struct nfs3_readdirargs
{
789 struct page
** pages
;
792 struct nfs3_diropres
{
793 struct nfs_fattr
* dir_attr
;
795 struct nfs_fattr
* fattr
;
798 struct nfs3_accessres
{
799 struct nfs_fattr
* fattr
;
803 struct nfs3_readlinkargs
{
807 struct page
** pages
;
810 struct nfs3_linkres
{
811 struct nfs_fattr
* dir_attr
;
812 struct nfs_fattr
* fattr
;
815 struct nfs3_readdirres
{
816 struct nfs_fattr
* dir_attr
;
821 struct nfs3_getaclres
{
822 struct nfs_fattr
* fattr
;
824 unsigned int acl_access_count
;
825 unsigned int acl_default_count
;
826 struct posix_acl
* acl_access
;
827 struct posix_acl
* acl_default
;
830 #if IS_ENABLED(CONFIG_NFS_V4)
832 typedef u64 clientid4
;
834 struct nfs4_accessargs
{
835 const struct nfs_fh
* fh
;
838 struct nfs4_sequence_args seq_args
;
841 struct nfs4_accessres
{
842 const struct nfs_server
* server
;
843 struct nfs_fattr
* fattr
;
846 struct nfs4_sequence_res seq_res
;
849 struct nfs4_create_arg
{
853 struct page
** pages
;
855 } symlink
; /* NF4LNK */
859 } device
; /* NF4BLK, NF4CHR */
861 const struct qstr
* name
;
862 const struct nfs_server
* server
;
863 const struct iattr
* attrs
;
864 const struct nfs_fh
* dir_fh
;
866 struct nfs4_sequence_args seq_args
;
869 struct nfs4_create_res
{
870 const struct nfs_server
* server
;
872 struct nfs_fattr
* fattr
;
873 struct nfs4_change_info dir_cinfo
;
874 struct nfs4_sequence_res seq_res
;
877 struct nfs4_fsinfo_arg
{
878 const struct nfs_fh
* fh
;
880 struct nfs4_sequence_args seq_args
;
883 struct nfs4_fsinfo_res
{
884 struct nfs_fsinfo
*fsinfo
;
885 struct nfs4_sequence_res seq_res
;
888 struct nfs4_getattr_arg
{
889 const struct nfs_fh
* fh
;
891 struct nfs4_sequence_args seq_args
;
894 struct nfs4_getattr_res
{
895 const struct nfs_server
* server
;
896 struct nfs_fattr
* fattr
;
897 struct nfs4_sequence_res seq_res
;
900 struct nfs4_link_arg
{
901 const struct nfs_fh
* fh
;
902 const struct nfs_fh
* dir_fh
;
903 const struct qstr
* name
;
905 struct nfs4_sequence_args seq_args
;
908 struct nfs4_link_res
{
909 const struct nfs_server
* server
;
910 struct nfs_fattr
* fattr
;
911 struct nfs4_change_info cinfo
;
912 struct nfs_fattr
* dir_attr
;
913 struct nfs4_sequence_res seq_res
;
917 struct nfs4_lookup_arg
{
918 const struct nfs_fh
* dir_fh
;
919 const struct qstr
* name
;
921 struct nfs4_sequence_args seq_args
;
924 struct nfs4_lookup_res
{
925 const struct nfs_server
* server
;
926 struct nfs_fattr
* fattr
;
928 struct nfs4_sequence_res seq_res
;
931 struct nfs4_lookup_root_arg
{
933 struct nfs4_sequence_args seq_args
;
936 struct nfs4_pathconf_arg
{
937 const struct nfs_fh
* fh
;
939 struct nfs4_sequence_args seq_args
;
942 struct nfs4_pathconf_res
{
943 struct nfs_pathconf
*pathconf
;
944 struct nfs4_sequence_res seq_res
;
947 struct nfs4_readdir_arg
{
948 const struct nfs_fh
* fh
;
950 nfs4_verifier verifier
;
952 struct page
** pages
; /* zero-copy data */
953 unsigned int pgbase
; /* zero-copy data */
956 struct nfs4_sequence_args seq_args
;
959 struct nfs4_readdir_res
{
960 nfs4_verifier verifier
;
962 struct nfs4_sequence_res seq_res
;
965 struct nfs4_readlink
{
966 const struct nfs_fh
* fh
;
968 unsigned int pglen
; /* zero-copy data */
969 struct page
** pages
; /* zero-copy data */
970 struct nfs4_sequence_args seq_args
;
973 struct nfs4_readlink_res
{
974 struct nfs4_sequence_res seq_res
;
977 #define NFS4_SETCLIENTID_NAMELEN (127)
978 struct nfs4_setclientid
{
979 const nfs4_verifier
* sc_verifier
;
980 unsigned int sc_name_len
;
981 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
983 unsigned int sc_netid_len
;
984 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
985 unsigned int sc_uaddr_len
;
986 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
990 struct nfs4_setclientid_res
{
992 nfs4_verifier confirm
;
995 struct nfs4_statfs_arg
{
996 const struct nfs_fh
* fh
;
998 struct nfs4_sequence_args seq_args
;
1001 struct nfs4_statfs_res
{
1002 struct nfs_fsstat
*fsstat
;
1003 struct nfs4_sequence_res seq_res
;
1006 struct nfs4_server_caps_arg
{
1007 struct nfs_fh
*fhandle
;
1008 struct nfs4_sequence_args seq_args
;
1011 struct nfs4_server_caps_res
{
1012 u32 attr_bitmask
[3];
1017 struct nfs4_sequence_res seq_res
;
1020 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1021 struct nfs4_pathname
{
1022 unsigned int ncomponents
;
1023 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1026 #define NFS4_FS_LOCATION_MAXSERVERS 10
1027 struct nfs4_fs_location
{
1028 unsigned int nservers
;
1029 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1030 struct nfs4_pathname rootpath
;
1033 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1034 struct nfs4_fs_locations
{
1035 struct nfs_fattr fattr
;
1036 const struct nfs_server
*server
;
1037 struct nfs4_pathname fs_path
;
1039 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1042 struct nfs4_fs_locations_arg
{
1043 const struct nfs_fh
*dir_fh
;
1044 const struct qstr
*name
;
1047 struct nfs4_sequence_args seq_args
;
1050 struct nfs4_fs_locations_res
{
1051 struct nfs4_fs_locations
*fs_locations
;
1052 struct nfs4_sequence_res seq_res
;
1055 struct nfs4_secinfo_oid
{
1057 char data
[GSS_OID_MAX_LEN
];
1060 struct nfs4_secinfo_gss
{
1061 struct nfs4_secinfo_oid sec_oid4
;
1063 unsigned int service
;
1066 struct nfs4_secinfo_flavor
{
1067 unsigned int flavor
;
1068 struct nfs4_secinfo_gss gss
;
1071 struct nfs4_secinfo_flavors
{
1072 unsigned int num_flavors
;
1073 struct nfs4_secinfo_flavor flavors
[0];
1076 struct nfs4_secinfo_arg
{
1077 const struct nfs_fh
*dir_fh
;
1078 const struct qstr
*name
;
1079 struct nfs4_sequence_args seq_args
;
1082 struct nfs4_secinfo_res
{
1083 struct nfs4_secinfo_flavors
*flavors
;
1084 struct nfs4_sequence_res seq_res
;
1087 #endif /* CONFIG_NFS_V4 */
1094 #ifdef CONFIG_NFS_V4_1
1096 struct pnfs_commit_bucket
{
1097 struct list_head written
;
1098 struct list_head committing
;
1099 struct pnfs_layout_segment
*wlseg
;
1100 struct pnfs_layout_segment
*clseg
;
1103 struct pnfs_ds_commit_info
{
1107 struct pnfs_commit_bucket
*buckets
;
1110 #define NFS4_EXCHANGE_ID_LEN (48)
1111 struct nfs41_exchange_id_args
{
1112 struct nfs_client
*client
;
1113 nfs4_verifier
*verifier
;
1114 unsigned int id_len
;
1115 char id
[NFS4_EXCHANGE_ID_LEN
];
1119 struct nfs41_server_owner
{
1121 uint32_t major_id_sz
;
1122 char major_id
[NFS4_OPAQUE_LIMIT
];
1125 struct nfs41_server_scope
{
1126 uint32_t server_scope_sz
;
1127 char server_scope
[NFS4_OPAQUE_LIMIT
];
1130 struct nfs41_impl_id
{
1131 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1132 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1133 struct nfstime4 date
;
1136 struct nfs41_bind_conn_to_session_res
{
1137 struct nfs4_session
*session
;
1139 bool use_conn_in_rdma_mode
;
1142 struct nfs41_exchange_id_res
{
1146 struct nfs41_server_owner
*server_owner
;
1147 struct nfs41_server_scope
*server_scope
;
1148 struct nfs41_impl_id
*impl_id
;
1151 struct nfs41_create_session_args
{
1152 struct nfs_client
*client
;
1154 uint32_t cb_program
;
1155 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1156 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1159 struct nfs41_create_session_res
{
1160 struct nfs_client
*client
;
1163 struct nfs41_reclaim_complete_args
{
1164 /* In the future extend to include curr_fh for use with migration */
1165 unsigned char one_fs
:1;
1166 struct nfs4_sequence_args seq_args
;
1169 struct nfs41_reclaim_complete_res
{
1170 struct nfs4_sequence_res seq_res
;
1173 #define SECINFO_STYLE_CURRENT_FH 0
1174 #define SECINFO_STYLE_PARENT 1
1175 struct nfs41_secinfo_no_name_args
{
1177 struct nfs4_sequence_args seq_args
;
1180 struct nfs41_test_stateid_args
{
1181 nfs4_stateid
*stateid
;
1182 struct nfs4_sequence_args seq_args
;
1185 struct nfs41_test_stateid_res
{
1186 unsigned int status
;
1187 struct nfs4_sequence_res seq_res
;
1190 struct nfs41_free_stateid_args
{
1191 nfs4_stateid
*stateid
;
1192 struct nfs4_sequence_args seq_args
;
1195 struct nfs41_free_stateid_res
{
1196 unsigned int status
;
1197 struct nfs4_sequence_res seq_res
;
1202 struct pnfs_ds_commit_info
{
1205 #endif /* CONFIG_NFS_V4_1 */
1209 #define NFS_PAGEVEC_SIZE (8U)
1211 struct nfs_page_array
{
1212 struct page
**pagevec
;
1213 unsigned int npages
; /* Max length of pagevec */
1214 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1217 struct nfs_read_data
{
1218 struct nfs_pgio_header
*header
;
1219 struct list_head list
;
1220 struct rpc_task task
;
1221 struct nfs_fattr fattr
; /* fattr storage */
1222 struct nfs_readargs args
;
1223 struct nfs_readres res
;
1224 unsigned long timestamp
; /* For lease renewal */
1225 int (*read_done_cb
) (struct rpc_task
*task
, struct nfs_read_data
*data
);
1227 struct nfs_page_array pages
;
1228 struct nfs_client
*ds_clp
; /* pNFS data server */
1231 /* used as flag bits in nfs_pgio_header */
1233 NFS_IOHDR_ERROR
= 0,
1236 NFS_IOHDR_NEED_COMMIT
,
1237 NFS_IOHDR_NEED_RESCHED
,
1240 struct nfs_pgio_header
{
1241 struct inode
*inode
;
1242 struct rpc_cred
*cred
;
1243 struct list_head pages
;
1244 struct list_head rpc_list
;
1246 struct nfs_page
*req
;
1247 struct nfs_writeverf
*verf
;
1248 struct pnfs_layout_segment
*lseg
;
1250 const struct rpc_call_ops
*mds_ops
;
1251 void (*release
) (struct nfs_pgio_header
*hdr
);
1252 const struct nfs_pgio_completion_ops
*completion_ops
;
1253 struct nfs_direct_req
*dreq
;
1254 void *layout_private
;
1256 /* fields protected by lock */
1258 int error
; /* merge with pnfs_error */
1259 unsigned long good_bytes
; /* boundary of good data */
1260 unsigned long flags
;
1263 struct nfs_read_header
{
1264 struct nfs_pgio_header header
;
1265 struct nfs_read_data rpc_data
;
1268 struct nfs_write_data
{
1269 struct nfs_pgio_header
*header
;
1270 struct list_head list
;
1271 struct rpc_task task
;
1272 struct nfs_fattr fattr
;
1273 struct nfs_writeverf verf
;
1274 struct nfs_writeargs args
; /* argument struct */
1275 struct nfs_writeres res
; /* result struct */
1276 unsigned long timestamp
; /* For lease renewal */
1277 int (*write_done_cb
) (struct rpc_task
*task
, struct nfs_write_data
*data
);
1278 __u64 mds_offset
; /* Filelayout dense stripe */
1279 struct nfs_page_array pages
;
1280 struct nfs_client
*ds_clp
; /* pNFS data server */
1283 struct nfs_write_header
{
1284 struct nfs_pgio_header header
;
1285 struct nfs_write_data rpc_data
;
1286 struct nfs_writeverf verf
;
1289 struct nfs_mds_commit_info
{
1291 unsigned long ncommit
;
1292 struct list_head list
;
1295 struct nfs_commit_data
;
1297 struct nfs_commit_completion_ops
{
1298 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1299 void (*completion
) (struct nfs_commit_data
*data
);
1302 struct nfs_commit_info
{
1304 struct nfs_mds_commit_info
*mds
;
1305 struct pnfs_ds_commit_info
*ds
;
1306 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1307 const struct nfs_commit_completion_ops
*completion_ops
;
1310 struct nfs_commit_data
{
1311 struct rpc_task task
;
1312 struct inode
*inode
;
1313 struct rpc_cred
*cred
;
1314 struct nfs_fattr fattr
;
1315 struct nfs_writeverf verf
;
1316 struct list_head pages
; /* Coalesced requests we wish to flush */
1317 struct list_head list
; /* lists of struct nfs_write_data */
1318 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1319 struct nfs_commitargs args
; /* argument struct */
1320 struct nfs_commitres res
; /* result struct */
1321 struct nfs_open_context
*context
;
1322 struct pnfs_layout_segment
*lseg
;
1323 struct nfs_client
*ds_clp
; /* pNFS data server */
1324 int ds_commit_index
;
1325 const struct rpc_call_ops
*mds_ops
;
1326 const struct nfs_commit_completion_ops
*completion_ops
;
1327 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1330 struct nfs_pgio_completion_ops
{
1331 void (*error_cleanup
)(struct list_head
*head
);
1332 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1333 void (*completion
)(struct nfs_pgio_header
*hdr
);
1336 struct nfs_unlinkdata
{
1337 struct hlist_node list
;
1338 struct nfs_removeargs args
;
1339 struct nfs_removeres res
;
1341 struct rpc_cred
*cred
;
1342 struct nfs_fattr dir_attr
;
1345 struct nfs_renamedata
{
1346 struct nfs_renameargs args
;
1347 struct nfs_renameres res
;
1348 struct rpc_cred
*cred
;
1349 struct inode
*old_dir
;
1350 struct dentry
*old_dentry
;
1351 struct nfs_fattr old_fattr
;
1352 struct inode
*new_dir
;
1353 struct dentry
*new_dentry
;
1354 struct nfs_fattr new_fattr
;
1357 struct nfs_access_entry
;
1360 struct nfs_subversion
;
1361 struct nfs_mount_info
;
1362 struct nfs_client_initdata
;
1363 struct nfs_pageio_descriptor
;
1366 * RPC procedure vector for NFSv2/NFSv3 demuxing
1368 struct nfs_rpc_ops
{
1369 u32 version
; /* Protocol version */
1370 const struct dentry_operations
*dentry_ops
;
1371 const struct inode_operations
*dir_inode_ops
;
1372 const struct inode_operations
*file_inode_ops
;
1373 const struct file_operations
*file_ops
;
1375 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1376 struct nfs_fsinfo
*);
1377 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1378 struct nfs_fh
*, struct nfs_fattr
*);
1379 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1380 struct nfs_subversion
*);
1381 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1382 struct nfs_fattr
*);
1383 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1385 int (*lookup
) (struct inode
*, struct qstr
*,
1386 struct nfs_fh
*, struct nfs_fattr
*);
1387 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1388 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1390 int (*create
) (struct inode
*, struct dentry
*,
1391 struct iattr
*, int);
1392 int (*remove
) (struct inode
*, struct qstr
*);
1393 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1394 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1395 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1396 int (*rename
) (struct inode
*, struct qstr
*,
1397 struct inode
*, struct qstr
*);
1398 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1399 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1400 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1401 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1402 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1403 unsigned int, struct iattr
*);
1404 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1405 int (*rmdir
) (struct inode
*, struct qstr
*);
1406 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1407 u64
, struct page
**, unsigned int, int);
1408 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1410 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1411 struct nfs_fsstat
*);
1412 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1413 struct nfs_fsinfo
*);
1414 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1415 struct nfs_pathconf
*);
1416 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1417 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1418 void (*read_setup
) (struct nfs_read_data
*, struct rpc_message
*);
1419 void (*read_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*,
1420 const struct nfs_pgio_completion_ops
*);
1421 void (*read_rpc_prepare
)(struct rpc_task
*, struct nfs_read_data
*);
1422 int (*read_done
) (struct rpc_task
*, struct nfs_read_data
*);
1423 void (*write_setup
) (struct nfs_write_data
*, struct rpc_message
*);
1424 void (*write_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*, int,
1425 const struct nfs_pgio_completion_ops
*);
1426 void (*write_rpc_prepare
)(struct rpc_task
*, struct nfs_write_data
*);
1427 int (*write_done
) (struct rpc_task
*, struct nfs_write_data
*);
1428 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1429 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1430 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1431 int (*lock
)(struct file
*, int, struct file_lock
*);
1432 int (*lock_check_bounds
)(const struct file_lock
*);
1433 void (*clear_acl_cache
)(struct inode
*);
1434 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1435 struct inode
* (*open_context
) (struct inode
*dir
,
1436 struct nfs_open_context
*ctx
,
1438 struct iattr
*iattr
);
1439 int (*have_delegation
)(struct inode
*, fmode_t
);
1440 int (*return_delegation
)(struct inode
*);
1441 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1443 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1444 const char *, rpc_authflavor_t
);
1445 void (*free_client
) (struct nfs_client
*);
1446 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1447 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1448 struct nfs_fattr
*, rpc_authflavor_t
);
1452 * NFS_CALL(getattr, inode, (fattr));
1454 * NFS_PROTO(inode)->getattr(fattr);
1456 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1459 * Function vectors etc. for the NFS client
1461 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1462 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1463 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1464 extern const struct rpc_version nfs_version2
;
1465 extern const struct rpc_version nfs_version3
;
1466 extern const struct rpc_version nfs_version4
;
1468 extern const struct rpc_version nfsacl_version3
;
1469 extern const struct rpc_program nfsacl_program
;