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
;
254 struct pnfs_layout_segment
**lsegpp
;
258 struct nfs4_getdevicelist_args
{
259 const struct nfs_fh
*fh
;
261 struct nfs4_sequence_args seq_args
;
264 struct nfs4_getdevicelist_res
{
265 struct pnfs_devicelist
*devlist
;
266 struct nfs4_sequence_res seq_res
;
269 struct nfs4_getdeviceinfo_args
{
270 struct pnfs_device
*pdev
;
271 struct nfs4_sequence_args seq_args
;
274 struct nfs4_getdeviceinfo_res
{
275 struct pnfs_device
*pdev
;
276 struct nfs4_sequence_res seq_res
;
279 struct nfs4_layoutcommit_args
{
280 nfs4_stateid stateid
;
281 __u64 lastbytewritten
;
284 struct nfs4_sequence_args seq_args
;
287 struct nfs4_layoutcommit_res
{
288 struct nfs_fattr
*fattr
;
289 const struct nfs_server
*server
;
290 struct nfs4_sequence_res seq_res
;
294 struct nfs4_layoutcommit_data
{
295 struct rpc_task task
;
296 struct nfs_fattr fattr
;
297 struct list_head lseg_list
;
298 struct rpc_cred
*cred
;
299 struct nfs4_layoutcommit_args args
;
300 struct nfs4_layoutcommit_res res
;
303 struct nfs4_layoutreturn_args
{
304 struct pnfs_layout_hdr
*layout
;
306 nfs4_stateid stateid
;
308 struct nfs4_sequence_args seq_args
;
311 struct nfs4_layoutreturn_res
{
312 struct nfs4_sequence_res seq_res
;
314 nfs4_stateid stateid
;
317 struct nfs4_layoutreturn
{
318 struct nfs4_layoutreturn_args args
;
319 struct nfs4_layoutreturn_res res
;
320 struct rpc_cred
*cred
;
321 struct nfs_client
*clp
;
325 struct stateowner_id
{
331 * Arguments to the open call.
333 struct nfs_openargs
{
334 const struct nfs_fh
* fh
;
335 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
;
375 * Arguments to the open_confirm call.
377 struct nfs_open_confirmargs
{
378 const struct nfs_fh
* fh
;
379 nfs4_stateid
* stateid
;
380 struct nfs_seqid
* seqid
;
383 struct nfs_open_confirmres
{
384 nfs4_stateid stateid
;
385 struct nfs_seqid
* seqid
;
389 * Arguments to the close call.
391 struct nfs_closeargs
{
393 nfs4_stateid
* stateid
;
394 struct nfs_seqid
* seqid
;
397 struct nfs4_sequence_args seq_args
;
400 struct nfs_closeres
{
401 nfs4_stateid stateid
;
402 struct nfs_fattr
* fattr
;
403 struct nfs_seqid
* seqid
;
404 const struct nfs_server
*server
;
405 struct nfs4_sequence_res seq_res
;
408 * * Arguments to the lock,lockt, and locku call.
416 struct nfs_lock_args
{
418 struct file_lock
* fl
;
419 struct nfs_seqid
* lock_seqid
;
420 nfs4_stateid
* lock_stateid
;
421 struct nfs_seqid
* open_seqid
;
422 nfs4_stateid
* open_stateid
;
423 struct nfs_lowner lock_owner
;
424 unsigned char block
: 1;
425 unsigned char reclaim
: 1;
426 unsigned char new_lock_owner
: 1;
427 struct nfs4_sequence_args seq_args
;
430 struct nfs_lock_res
{
431 nfs4_stateid stateid
;
432 struct nfs_seqid
* lock_seqid
;
433 struct nfs_seqid
* open_seqid
;
434 struct nfs4_sequence_res seq_res
;
437 struct nfs_locku_args
{
439 struct file_lock
* fl
;
440 struct nfs_seqid
* seqid
;
441 nfs4_stateid
* stateid
;
442 struct nfs4_sequence_args seq_args
;
445 struct nfs_locku_res
{
446 nfs4_stateid stateid
;
447 struct nfs_seqid
* seqid
;
448 struct nfs4_sequence_res seq_res
;
451 struct nfs_lockt_args
{
453 struct file_lock
* fl
;
454 struct nfs_lowner lock_owner
;
455 struct nfs4_sequence_args seq_args
;
458 struct nfs_lockt_res
{
459 struct file_lock
* denied
; /* LOCK, LOCKT failed */
460 struct nfs4_sequence_res seq_res
;
463 struct nfs_release_lockowner_args
{
464 struct nfs_lowner lock_owner
;
467 struct nfs4_delegreturnargs
{
468 const struct nfs_fh
*fhandle
;
469 const nfs4_stateid
*stateid
;
471 struct nfs4_sequence_args seq_args
;
474 struct nfs4_delegreturnres
{
475 struct nfs_fattr
* fattr
;
476 const struct nfs_server
*server
;
477 struct nfs4_sequence_res seq_res
;
481 * Arguments to the read call.
483 struct nfs_readargs
{
485 struct nfs_open_context
*context
;
486 struct nfs_lock_context
*lock_context
;
490 struct page
** pages
;
491 struct nfs4_sequence_args seq_args
;
495 struct nfs_fattr
* fattr
;
498 struct nfs4_sequence_res seq_res
;
502 * Arguments to the write call.
504 struct nfs_writeargs
{
506 struct nfs_open_context
*context
;
507 struct nfs_lock_context
*lock_context
;
510 enum nfs3_stable_how stable
;
512 struct page
** pages
;
514 struct nfs4_sequence_args seq_args
;
517 struct nfs_writeverf
{
518 enum nfs3_stable_how committed
;
522 struct nfs_writeres
{
523 struct nfs_fattr
* fattr
;
524 struct nfs_writeverf
* verf
;
526 const struct nfs_server
*server
;
527 struct nfs4_sequence_res seq_res
;
531 * Arguments to the commit call.
533 struct nfs_commitargs
{
538 struct nfs4_sequence_args seq_args
;
541 struct nfs_commitres
{
542 struct nfs_fattr
*fattr
;
543 struct nfs_writeverf
*verf
;
544 const struct nfs_server
*server
;
545 struct nfs4_sequence_res seq_res
;
549 * Common arguments to the unlink call
551 struct nfs_removeargs
{
552 const struct nfs_fh
*fh
;
554 struct nfs4_sequence_args seq_args
;
557 struct nfs_removeres
{
558 const struct nfs_server
*server
;
559 struct nfs_fattr
*dir_attr
;
560 struct nfs4_change_info cinfo
;
561 struct nfs4_sequence_res seq_res
;
565 * Common arguments to the rename call
567 struct nfs_renameargs
{
568 const struct nfs_fh
*old_dir
;
569 const struct nfs_fh
*new_dir
;
570 const struct qstr
*old_name
;
571 const struct qstr
*new_name
;
572 struct nfs4_sequence_args seq_args
;
575 struct nfs_renameres
{
576 const struct nfs_server
*server
;
577 struct nfs4_change_info old_cinfo
;
578 struct nfs_fattr
*old_fattr
;
579 struct nfs4_change_info new_cinfo
;
580 struct nfs_fattr
*new_fattr
;
581 struct nfs4_sequence_res seq_res
;
585 * Argument struct for decode_entry function
595 struct nfs_fattr
* fattr
;
596 unsigned char d_type
;
597 struct nfs_server
* server
;
601 * The following types are for NFSv2 only.
603 struct nfs_sattrargs
{
605 struct iattr
* sattr
;
608 struct nfs_diropargs
{
614 struct nfs_createargs
{
618 struct iattr
* sattr
;
621 struct nfs_setattrargs
{
623 nfs4_stateid stateid
;
625 const struct nfs_server
* server
; /* Needed for name mapping */
627 struct nfs4_sequence_args seq_args
;
630 struct nfs_setaclargs
{
633 unsigned int acl_pgbase
;
634 struct page
** acl_pages
;
635 struct nfs4_sequence_args seq_args
;
638 struct nfs_setaclres
{
639 struct nfs4_sequence_res seq_res
;
642 struct nfs_getaclargs
{
645 unsigned int acl_pgbase
;
646 struct page
** acl_pages
;
647 struct nfs4_sequence_args seq_args
;
650 /* getxattr ACL interface flags */
651 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
652 struct nfs_getaclres
{
654 size_t acl_data_offset
;
656 struct page
* acl_scratch
;
657 struct nfs4_sequence_res seq_res
;
660 struct nfs_setattrres
{
661 struct nfs_fattr
* fattr
;
662 const struct nfs_server
* server
;
663 struct nfs4_sequence_res seq_res
;
666 struct nfs_linkargs
{
667 struct nfs_fh
* fromfh
;
668 struct nfs_fh
* tofh
;
673 struct nfs_symlinkargs
{
674 struct nfs_fh
* fromfh
;
675 const char * fromname
;
676 unsigned int fromlen
;
677 struct page
** pages
;
678 unsigned int pathlen
;
679 struct iattr
* sattr
;
682 struct nfs_readdirargs
{
686 struct page
** pages
;
689 struct nfs3_getaclargs
{
692 struct page
** pages
;
695 struct nfs3_setaclargs
{
696 struct inode
* inode
;
698 struct posix_acl
* acl_access
;
699 struct posix_acl
* acl_default
;
702 struct page
** pages
;
707 struct nfs_fattr
* fattr
;
710 struct nfs_readlinkargs
{
714 struct page
** pages
;
717 struct nfs3_sattrargs
{
719 struct iattr
* sattr
;
721 struct timespec guardtime
;
724 struct nfs3_diropargs
{
730 struct nfs3_accessargs
{
735 struct nfs3_createargs
{
739 struct iattr
* sattr
;
740 enum nfs3_createmode createmode
;
744 struct nfs3_mkdirargs
{
748 struct iattr
* sattr
;
751 struct nfs3_symlinkargs
{
752 struct nfs_fh
* fromfh
;
753 const char * fromname
;
754 unsigned int fromlen
;
755 struct page
** pages
;
756 unsigned int pathlen
;
757 struct iattr
* sattr
;
760 struct nfs3_mknodargs
{
764 enum nfs3_ftype type
;
765 struct iattr
* sattr
;
769 struct nfs3_linkargs
{
770 struct nfs_fh
* fromfh
;
771 struct nfs_fh
* tofh
;
776 struct nfs3_readdirargs
{
782 struct page
** pages
;
785 struct nfs3_diropres
{
786 struct nfs_fattr
* dir_attr
;
788 struct nfs_fattr
* fattr
;
791 struct nfs3_accessres
{
792 struct nfs_fattr
* fattr
;
796 struct nfs3_readlinkargs
{
800 struct page
** pages
;
803 struct nfs3_linkres
{
804 struct nfs_fattr
* dir_attr
;
805 struct nfs_fattr
* fattr
;
808 struct nfs3_readdirres
{
809 struct nfs_fattr
* dir_attr
;
814 struct nfs3_getaclres
{
815 struct nfs_fattr
* fattr
;
817 unsigned int acl_access_count
;
818 unsigned int acl_default_count
;
819 struct posix_acl
* acl_access
;
820 struct posix_acl
* acl_default
;
825 typedef u64 clientid4
;
827 struct nfs4_accessargs
{
828 const struct nfs_fh
* fh
;
831 struct nfs4_sequence_args seq_args
;
834 struct nfs4_accessres
{
835 const struct nfs_server
* server
;
836 struct nfs_fattr
* fattr
;
839 struct nfs4_sequence_res seq_res
;
842 struct nfs4_create_arg
{
846 struct page
** pages
;
848 } symlink
; /* NF4LNK */
852 } device
; /* NF4BLK, NF4CHR */
854 const struct qstr
* name
;
855 const struct nfs_server
* server
;
856 const struct iattr
* attrs
;
857 const struct nfs_fh
* dir_fh
;
859 struct nfs4_sequence_args seq_args
;
862 struct nfs4_create_res
{
863 const struct nfs_server
* server
;
865 struct nfs_fattr
* fattr
;
866 struct nfs4_change_info dir_cinfo
;
867 struct nfs4_sequence_res seq_res
;
870 struct nfs4_fsinfo_arg
{
871 const struct nfs_fh
* fh
;
873 struct nfs4_sequence_args seq_args
;
876 struct nfs4_fsinfo_res
{
877 struct nfs_fsinfo
*fsinfo
;
878 struct nfs4_sequence_res seq_res
;
881 struct nfs4_getattr_arg
{
882 const struct nfs_fh
* fh
;
884 struct nfs4_sequence_args seq_args
;
887 struct nfs4_getattr_res
{
888 const struct nfs_server
* server
;
889 struct nfs_fattr
* fattr
;
890 struct nfs4_sequence_res seq_res
;
893 struct nfs4_link_arg
{
894 const struct nfs_fh
* fh
;
895 const struct nfs_fh
* dir_fh
;
896 const struct qstr
* name
;
898 struct nfs4_sequence_args seq_args
;
901 struct nfs4_link_res
{
902 const struct nfs_server
* server
;
903 struct nfs_fattr
* fattr
;
904 struct nfs4_change_info cinfo
;
905 struct nfs_fattr
* dir_attr
;
906 struct nfs4_sequence_res seq_res
;
910 struct nfs4_lookup_arg
{
911 const struct nfs_fh
* dir_fh
;
912 const struct qstr
* name
;
914 struct nfs4_sequence_args seq_args
;
917 struct nfs4_lookup_res
{
918 const struct nfs_server
* server
;
919 struct nfs_fattr
* fattr
;
921 struct nfs4_sequence_res seq_res
;
924 struct nfs4_lookup_root_arg
{
926 struct nfs4_sequence_args seq_args
;
929 struct nfs4_pathconf_arg
{
930 const struct nfs_fh
* fh
;
932 struct nfs4_sequence_args seq_args
;
935 struct nfs4_pathconf_res
{
936 struct nfs_pathconf
*pathconf
;
937 struct nfs4_sequence_res seq_res
;
940 struct nfs4_readdir_arg
{
941 const struct nfs_fh
* fh
;
943 nfs4_verifier verifier
;
945 struct page
** pages
; /* zero-copy data */
946 unsigned int pgbase
; /* zero-copy data */
949 struct nfs4_sequence_args seq_args
;
952 struct nfs4_readdir_res
{
953 nfs4_verifier verifier
;
955 struct nfs4_sequence_res seq_res
;
958 struct nfs4_readlink
{
959 const struct nfs_fh
* fh
;
961 unsigned int pglen
; /* zero-copy data */
962 struct page
** pages
; /* zero-copy data */
963 struct nfs4_sequence_args seq_args
;
966 struct nfs4_readlink_res
{
967 struct nfs4_sequence_res seq_res
;
970 #define NFS4_SETCLIENTID_NAMELEN (127)
971 struct nfs4_setclientid
{
972 const nfs4_verifier
* sc_verifier
;
973 unsigned int sc_name_len
;
974 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
976 unsigned int sc_netid_len
;
977 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
978 unsigned int sc_uaddr_len
;
979 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
983 struct nfs4_setclientid_res
{
985 nfs4_verifier confirm
;
988 struct nfs4_statfs_arg
{
989 const struct nfs_fh
* fh
;
991 struct nfs4_sequence_args seq_args
;
994 struct nfs4_statfs_res
{
995 struct nfs_fsstat
*fsstat
;
996 struct nfs4_sequence_res seq_res
;
999 struct nfs4_server_caps_arg
{
1000 struct nfs_fh
*fhandle
;
1001 struct nfs4_sequence_args seq_args
;
1004 struct nfs4_server_caps_res
{
1005 u32 attr_bitmask
[3];
1010 struct nfs4_sequence_res seq_res
;
1013 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1014 struct nfs4_pathname
{
1015 unsigned int ncomponents
;
1016 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1019 #define NFS4_FS_LOCATION_MAXSERVERS 10
1020 struct nfs4_fs_location
{
1021 unsigned int nservers
;
1022 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1023 struct nfs4_pathname rootpath
;
1026 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1027 struct nfs4_fs_locations
{
1028 struct nfs_fattr fattr
;
1029 const struct nfs_server
*server
;
1030 struct nfs4_pathname fs_path
;
1032 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1035 struct nfs4_fs_locations_arg
{
1036 const struct nfs_fh
*dir_fh
;
1037 const struct qstr
*name
;
1040 struct nfs4_sequence_args seq_args
;
1043 struct nfs4_fs_locations_res
{
1044 struct nfs4_fs_locations
*fs_locations
;
1045 struct nfs4_sequence_res seq_res
;
1048 struct nfs4_secinfo_oid
{
1050 char data
[GSS_OID_MAX_LEN
];
1053 struct nfs4_secinfo_gss
{
1054 struct nfs4_secinfo_oid sec_oid4
;
1056 unsigned int service
;
1059 struct nfs4_secinfo_flavor
{
1060 unsigned int flavor
;
1061 struct nfs4_secinfo_gss gss
;
1064 struct nfs4_secinfo_flavors
{
1065 unsigned int num_flavors
;
1066 struct nfs4_secinfo_flavor flavors
[0];
1069 struct nfs4_secinfo_arg
{
1070 const struct nfs_fh
*dir_fh
;
1071 const struct qstr
*name
;
1072 struct nfs4_sequence_args seq_args
;
1075 struct nfs4_secinfo_res
{
1076 struct nfs4_secinfo_flavors
*flavors
;
1077 struct nfs4_sequence_res seq_res
;
1080 #endif /* CONFIG_NFS_V4 */
1087 #ifdef CONFIG_NFS_V4_1
1089 struct pnfs_commit_bucket
{
1090 struct list_head written
;
1091 struct list_head committing
;
1092 struct pnfs_layout_segment
*wlseg
;
1093 struct pnfs_layout_segment
*clseg
;
1096 struct pnfs_ds_commit_info
{
1100 struct pnfs_commit_bucket
*buckets
;
1103 #define NFS4_EXCHANGE_ID_LEN (48)
1104 struct nfs41_exchange_id_args
{
1105 struct nfs_client
*client
;
1106 nfs4_verifier
*verifier
;
1107 unsigned int id_len
;
1108 char id
[NFS4_EXCHANGE_ID_LEN
];
1112 struct nfs41_server_owner
{
1114 uint32_t major_id_sz
;
1115 char major_id
[NFS4_OPAQUE_LIMIT
];
1118 struct nfs41_server_scope
{
1119 uint32_t server_scope_sz
;
1120 char server_scope
[NFS4_OPAQUE_LIMIT
];
1123 struct nfs41_impl_id
{
1124 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1125 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1126 struct nfstime4 date
;
1129 struct nfs41_bind_conn_to_session_res
{
1130 struct nfs4_session
*session
;
1132 bool use_conn_in_rdma_mode
;
1135 struct nfs41_exchange_id_res
{
1139 struct nfs41_server_owner
*server_owner
;
1140 struct nfs41_server_scope
*server_scope
;
1141 struct nfs41_impl_id
*impl_id
;
1144 struct nfs41_create_session_args
{
1145 struct nfs_client
*client
;
1147 uint32_t cb_program
;
1148 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1149 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1152 struct nfs41_create_session_res
{
1153 struct nfs_client
*client
;
1156 struct nfs41_reclaim_complete_args
{
1157 /* In the future extend to include curr_fh for use with migration */
1158 unsigned char one_fs
:1;
1159 struct nfs4_sequence_args seq_args
;
1162 struct nfs41_reclaim_complete_res
{
1163 struct nfs4_sequence_res seq_res
;
1166 #define SECINFO_STYLE_CURRENT_FH 0
1167 #define SECINFO_STYLE_PARENT 1
1168 struct nfs41_secinfo_no_name_args
{
1170 struct nfs4_sequence_args seq_args
;
1173 struct nfs41_test_stateid_args
{
1174 nfs4_stateid
*stateid
;
1175 struct nfs4_sequence_args seq_args
;
1178 struct nfs41_test_stateid_res
{
1179 unsigned int status
;
1180 struct nfs4_sequence_res seq_res
;
1183 struct nfs41_free_stateid_args
{
1184 nfs4_stateid
*stateid
;
1185 struct nfs4_sequence_args seq_args
;
1188 struct nfs41_free_stateid_res
{
1189 unsigned int status
;
1190 struct nfs4_sequence_res seq_res
;
1195 struct pnfs_ds_commit_info
{
1198 #endif /* CONFIG_NFS_V4_1 */
1202 #define NFS_PAGEVEC_SIZE (8U)
1204 struct nfs_page_array
{
1205 struct page
**pagevec
;
1206 unsigned int npages
; /* Max length of pagevec */
1207 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1210 struct nfs_read_data
{
1211 struct nfs_pgio_header
*header
;
1212 struct list_head list
;
1213 struct rpc_task task
;
1214 struct nfs_fattr fattr
; /* fattr storage */
1215 struct nfs_readargs args
;
1216 struct nfs_readres res
;
1217 unsigned long timestamp
; /* For lease renewal */
1218 int (*read_done_cb
) (struct rpc_task
*task
, struct nfs_read_data
*data
);
1220 struct nfs_page_array pages
;
1221 struct nfs_client
*ds_clp
; /* pNFS data server */
1224 /* used as flag bits in nfs_pgio_header */
1226 NFS_IOHDR_ERROR
= 0,
1229 NFS_IOHDR_NEED_COMMIT
,
1230 NFS_IOHDR_NEED_RESCHED
,
1233 struct nfs_pgio_header
{
1234 struct inode
*inode
;
1235 struct rpc_cred
*cred
;
1236 struct list_head pages
;
1237 struct list_head rpc_list
;
1239 struct nfs_page
*req
;
1240 struct nfs_writeverf
*verf
;
1241 struct pnfs_layout_segment
*lseg
;
1243 const struct rpc_call_ops
*mds_ops
;
1244 void (*release
) (struct nfs_pgio_header
*hdr
);
1245 const struct nfs_pgio_completion_ops
*completion_ops
;
1246 struct nfs_direct_req
*dreq
;
1248 /* fields protected by lock */
1250 int error
; /* merge with pnfs_error */
1251 unsigned long good_bytes
; /* boundary of good data */
1252 unsigned long flags
;
1255 struct nfs_read_header
{
1256 struct nfs_pgio_header header
;
1257 struct nfs_read_data rpc_data
;
1260 struct nfs_write_data
{
1261 struct nfs_pgio_header
*header
;
1262 struct list_head list
;
1263 struct rpc_task task
;
1264 struct nfs_fattr fattr
;
1265 struct nfs_writeverf verf
;
1266 struct nfs_writeargs args
; /* argument struct */
1267 struct nfs_writeres res
; /* result struct */
1268 unsigned long timestamp
; /* For lease renewal */
1269 int (*write_done_cb
) (struct rpc_task
*task
, struct nfs_write_data
*data
);
1270 __u64 mds_offset
; /* Filelayout dense stripe */
1271 struct nfs_page_array pages
;
1272 struct nfs_client
*ds_clp
; /* pNFS data server */
1275 struct nfs_write_header
{
1276 struct nfs_pgio_header header
;
1277 struct nfs_write_data rpc_data
;
1278 struct nfs_writeverf verf
;
1281 struct nfs_mds_commit_info
{
1283 unsigned long ncommit
;
1284 struct list_head list
;
1287 struct nfs_commit_data
;
1289 struct nfs_commit_completion_ops
{
1290 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1291 void (*completion
) (struct nfs_commit_data
*data
);
1294 struct nfs_commit_info
{
1296 struct nfs_mds_commit_info
*mds
;
1297 struct pnfs_ds_commit_info
*ds
;
1298 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1299 const struct nfs_commit_completion_ops
*completion_ops
;
1302 struct nfs_commit_data
{
1303 struct rpc_task task
;
1304 struct inode
*inode
;
1305 struct rpc_cred
*cred
;
1306 struct nfs_fattr fattr
;
1307 struct nfs_writeverf verf
;
1308 struct list_head pages
; /* Coalesced requests we wish to flush */
1309 struct list_head list
; /* lists of struct nfs_write_data */
1310 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1311 struct nfs_commitargs args
; /* argument struct */
1312 struct nfs_commitres res
; /* result struct */
1313 struct nfs_open_context
*context
;
1314 struct pnfs_layout_segment
*lseg
;
1315 struct nfs_client
*ds_clp
; /* pNFS data server */
1316 int ds_commit_index
;
1317 const struct rpc_call_ops
*mds_ops
;
1318 const struct nfs_commit_completion_ops
*completion_ops
;
1319 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1322 struct nfs_pgio_completion_ops
{
1323 void (*error_cleanup
)(struct list_head
*head
);
1324 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1325 void (*completion
)(struct nfs_pgio_header
*hdr
);
1328 struct nfs_unlinkdata
{
1329 struct hlist_node list
;
1330 struct nfs_removeargs args
;
1331 struct nfs_removeres res
;
1333 struct rpc_cred
*cred
;
1334 struct nfs_fattr dir_attr
;
1337 struct nfs_renamedata
{
1338 struct nfs_renameargs args
;
1339 struct nfs_renameres res
;
1340 struct rpc_cred
*cred
;
1341 struct inode
*old_dir
;
1342 struct dentry
*old_dentry
;
1343 struct nfs_fattr old_fattr
;
1344 struct inode
*new_dir
;
1345 struct dentry
*new_dentry
;
1346 struct nfs_fattr new_fattr
;
1349 struct nfs_access_entry
;
1354 * RPC procedure vector for NFSv2/NFSv3 demuxing
1356 struct nfs_rpc_ops
{
1357 u32 version
; /* Protocol version */
1358 const struct dentry_operations
*dentry_ops
;
1359 const struct inode_operations
*dir_inode_ops
;
1360 const struct inode_operations
*file_inode_ops
;
1361 const struct file_operations
*file_ops
;
1363 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1364 struct nfs_fsinfo
*);
1365 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1366 struct nfs_fh
*, struct nfs_fattr
*);
1367 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1368 struct nfs_fattr
*);
1369 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1371 int (*lookup
) (struct inode
*, struct qstr
*,
1372 struct nfs_fh
*, struct nfs_fattr
*);
1373 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1374 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1376 int (*create
) (struct inode
*, struct dentry
*,
1377 struct iattr
*, int);
1378 int (*remove
) (struct inode
*, struct qstr
*);
1379 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1380 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1381 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1382 int (*rename
) (struct inode
*, struct qstr
*,
1383 struct inode
*, struct qstr
*);
1384 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1385 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1386 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1387 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1388 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1389 unsigned int, struct iattr
*);
1390 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1391 int (*rmdir
) (struct inode
*, struct qstr
*);
1392 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1393 u64
, struct page
**, unsigned int, int);
1394 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1396 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1397 struct nfs_fsstat
*);
1398 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1399 struct nfs_fsinfo
*);
1400 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1401 struct nfs_pathconf
*);
1402 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1403 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1404 void (*read_setup
) (struct nfs_read_data
*, struct rpc_message
*);
1405 void (*read_rpc_prepare
)(struct rpc_task
*, struct nfs_read_data
*);
1406 int (*read_done
) (struct rpc_task
*, struct nfs_read_data
*);
1407 void (*write_setup
) (struct nfs_write_data
*, struct rpc_message
*);
1408 void (*write_rpc_prepare
)(struct rpc_task
*, struct nfs_write_data
*);
1409 int (*write_done
) (struct rpc_task
*, struct nfs_write_data
*);
1410 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1411 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1412 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1413 int (*lock
)(struct file
*, int, struct file_lock
*);
1414 int (*lock_check_bounds
)(const struct file_lock
*);
1415 void (*clear_acl_cache
)(struct inode
*);
1416 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1417 struct inode
* (*open_context
) (struct inode
*dir
,
1418 struct nfs_open_context
*ctx
,
1420 struct iattr
*iattr
);
1422 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1423 const char *, rpc_authflavor_t
);
1427 * NFS_CALL(getattr, inode, (fattr));
1429 * NFS_PROTO(inode)->getattr(fattr);
1431 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1434 * Function vectors etc. for the NFS client
1436 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1437 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1438 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1439 extern const struct rpc_version nfs_version2
;
1440 extern const struct rpc_version nfs_version3
;
1441 extern const struct rpc_version nfs_version4
;
1443 extern const struct rpc_version nfsacl_version3
;
1444 extern const struct rpc_program nfsacl_program
;