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
;
189 struct nfs4_sequence_args
{
190 struct nfs4_slot
*sa_slot
;
191 u8 sa_cache_this
: 1,
195 struct nfs4_sequence_res
{
196 struct nfs4_slot
*sr_slot
; /* slot used to send request */
197 unsigned long sr_timestamp
;
198 int sr_status
; /* sequence operation status */
200 u32 sr_highest_slotid
;
201 u32 sr_target_highest_slotid
;
204 struct nfs4_get_lease_time_args
{
205 struct nfs4_sequence_args la_seq_args
;
208 struct nfs4_get_lease_time_res
{
209 struct nfs4_sequence_res lr_seq_res
;
210 struct nfs_fsinfo
*lr_fsinfo
;
213 #define PNFS_LAYOUT_MAXSIZE 4096
215 struct nfs4_layoutdriver_data
{
221 struct pnfs_layout_range
{
227 struct nfs4_layoutget_args
{
228 struct nfs4_sequence_args seq_args
;
230 struct pnfs_layout_range range
;
234 struct nfs_open_context
*ctx
;
235 nfs4_stateid stateid
;
236 unsigned long timestamp
;
237 struct nfs4_layoutdriver_data layout
;
240 struct nfs4_layoutget_res
{
241 struct nfs4_sequence_res seq_res
;
242 __u32 return_on_close
;
243 struct pnfs_layout_range range
;
245 nfs4_stateid stateid
;
246 struct nfs4_layoutdriver_data
*layoutp
;
249 struct nfs4_layoutget
{
250 struct nfs4_layoutget_args args
;
251 struct nfs4_layoutget_res res
;
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
;
355 struct nfs4_sequence_res seq_res
;
356 nfs4_stateid stateid
;
358 struct nfs4_change_info cinfo
;
360 struct nfs_fattr
* f_attr
;
361 struct nfs_seqid
* seqid
;
362 const struct nfs_server
*server
;
363 fmode_t delegation_type
;
364 nfs4_stateid delegation
;
367 __u32 attrset
[NFS4_BITMAP_SIZE
];
368 struct nfs4_string
*owner
;
369 struct nfs4_string
*group_owner
;
370 __u32 access_request
;
371 __u32 access_supported
;
376 * Arguments to the open_confirm call.
378 struct nfs_open_confirmargs
{
379 const struct nfs_fh
* fh
;
380 nfs4_stateid
* stateid
;
381 struct nfs_seqid
* seqid
;
384 struct nfs_open_confirmres
{
385 nfs4_stateid stateid
;
386 struct nfs_seqid
* seqid
;
390 * Arguments to the close call.
392 struct nfs_closeargs
{
393 struct nfs4_sequence_args seq_args
;
395 nfs4_stateid
* stateid
;
396 struct nfs_seqid
* seqid
;
401 struct nfs_closeres
{
402 struct nfs4_sequence_res seq_res
;
403 nfs4_stateid stateid
;
404 struct nfs_fattr
* fattr
;
405 struct nfs_seqid
* seqid
;
406 const struct nfs_server
*server
;
409 * * Arguments to the lock,lockt, and locku call.
417 struct nfs_lock_args
{
418 struct nfs4_sequence_args seq_args
;
420 struct file_lock
* fl
;
421 struct nfs_seqid
* lock_seqid
;
422 nfs4_stateid
* lock_stateid
;
423 struct nfs_seqid
* open_seqid
;
424 nfs4_stateid
* open_stateid
;
425 struct nfs_lowner lock_owner
;
426 unsigned char block
: 1;
427 unsigned char reclaim
: 1;
428 unsigned char new_lock_owner
: 1;
431 struct nfs_lock_res
{
432 struct nfs4_sequence_res seq_res
;
433 nfs4_stateid stateid
;
434 struct nfs_seqid
* lock_seqid
;
435 struct nfs_seqid
* open_seqid
;
438 struct nfs_locku_args
{
439 struct nfs4_sequence_args seq_args
;
441 struct file_lock
* fl
;
442 struct nfs_seqid
* seqid
;
443 nfs4_stateid
* stateid
;
446 struct nfs_locku_res
{
447 struct nfs4_sequence_res seq_res
;
448 nfs4_stateid stateid
;
449 struct nfs_seqid
* seqid
;
452 struct nfs_lockt_args
{
453 struct nfs4_sequence_args seq_args
;
455 struct file_lock
* fl
;
456 struct nfs_lowner lock_owner
;
459 struct nfs_lockt_res
{
460 struct nfs4_sequence_res seq_res
;
461 struct file_lock
* denied
; /* LOCK, LOCKT failed */
464 struct nfs_release_lockowner_args
{
465 struct nfs_lowner lock_owner
;
468 struct nfs4_delegreturnargs
{
469 struct nfs4_sequence_args seq_args
;
470 const struct nfs_fh
*fhandle
;
471 const nfs4_stateid
*stateid
;
475 struct nfs4_delegreturnres
{
476 struct nfs4_sequence_res seq_res
;
477 struct nfs_fattr
* fattr
;
478 const struct nfs_server
*server
;
482 * Arguments to the read call.
484 struct nfs_readargs
{
485 struct nfs4_sequence_args seq_args
;
487 struct nfs_open_context
*context
;
488 struct nfs_lock_context
*lock_context
;
492 struct page
** pages
;
496 struct nfs4_sequence_res seq_res
;
497 struct nfs_fattr
* fattr
;
503 * Arguments to the write call.
505 struct nfs_writeargs
{
506 struct nfs4_sequence_args seq_args
;
508 struct nfs_open_context
*context
;
509 struct nfs_lock_context
*lock_context
;
512 enum nfs3_stable_how stable
;
514 struct page
** pages
;
518 struct nfs_write_verifier
{
522 struct nfs_writeverf
{
523 struct nfs_write_verifier verifier
;
524 enum nfs3_stable_how committed
;
527 struct nfs_writeres
{
528 struct nfs4_sequence_res seq_res
;
529 struct nfs_fattr
* fattr
;
530 struct nfs_writeverf
* verf
;
532 const struct nfs_server
*server
;
536 * Arguments to the commit call.
538 struct nfs_commitargs
{
539 struct nfs4_sequence_args seq_args
;
546 struct nfs_commitres
{
547 struct nfs4_sequence_res seq_res
;
548 struct nfs_fattr
*fattr
;
549 struct nfs_writeverf
*verf
;
550 const struct nfs_server
*server
;
554 * Common arguments to the unlink call
556 struct nfs_removeargs
{
557 struct nfs4_sequence_args seq_args
;
558 const struct nfs_fh
*fh
;
562 struct nfs_removeres
{
563 struct nfs4_sequence_res seq_res
;
564 const struct nfs_server
*server
;
565 struct nfs_fattr
*dir_attr
;
566 struct nfs4_change_info cinfo
;
570 * Common arguments to the rename call
572 struct nfs_renameargs
{
573 struct nfs4_sequence_args seq_args
;
574 const struct nfs_fh
*old_dir
;
575 const struct nfs_fh
*new_dir
;
576 const struct qstr
*old_name
;
577 const struct qstr
*new_name
;
580 struct nfs_renameres
{
581 struct nfs4_sequence_res seq_res
;
582 const struct nfs_server
*server
;
583 struct nfs4_change_info old_cinfo
;
584 struct nfs_fattr
*old_fattr
;
585 struct nfs4_change_info new_cinfo
;
586 struct nfs_fattr
*new_fattr
;
590 * Argument struct for decode_entry function
600 struct nfs_fattr
* fattr
;
601 unsigned char d_type
;
602 struct nfs_server
* server
;
606 * The following types are for NFSv2 only.
608 struct nfs_sattrargs
{
610 struct iattr
* sattr
;
613 struct nfs_diropargs
{
619 struct nfs_createargs
{
623 struct iattr
* sattr
;
626 struct nfs_setattrargs
{
627 struct nfs4_sequence_args seq_args
;
629 nfs4_stateid stateid
;
631 const struct nfs_server
* server
; /* Needed for name mapping */
635 struct nfs_setaclargs
{
636 struct nfs4_sequence_args seq_args
;
639 unsigned int acl_pgbase
;
640 struct page
** acl_pages
;
643 struct nfs_setaclres
{
644 struct nfs4_sequence_res seq_res
;
647 struct nfs_getaclargs
{
648 struct nfs4_sequence_args seq_args
;
651 unsigned int acl_pgbase
;
652 struct page
** acl_pages
;
655 /* getxattr ACL interface flags */
656 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
657 struct nfs_getaclres
{
658 struct nfs4_sequence_res seq_res
;
660 size_t acl_data_offset
;
662 struct page
* acl_scratch
;
665 struct nfs_setattrres
{
666 struct nfs4_sequence_res seq_res
;
667 struct nfs_fattr
* fattr
;
668 const struct nfs_server
* server
;
671 struct nfs_linkargs
{
672 struct nfs_fh
* fromfh
;
673 struct nfs_fh
* tofh
;
678 struct nfs_symlinkargs
{
679 struct nfs_fh
* fromfh
;
680 const char * fromname
;
681 unsigned int fromlen
;
682 struct page
** pages
;
683 unsigned int pathlen
;
684 struct iattr
* sattr
;
687 struct nfs_readdirargs
{
691 struct page
** pages
;
694 struct nfs3_getaclargs
{
697 struct page
** pages
;
700 struct nfs3_setaclargs
{
701 struct inode
* inode
;
703 struct posix_acl
* acl_access
;
704 struct posix_acl
* acl_default
;
707 struct page
** pages
;
712 struct nfs_fattr
* fattr
;
715 struct nfs_readlinkargs
{
719 struct page
** pages
;
722 struct nfs3_sattrargs
{
724 struct iattr
* sattr
;
726 struct timespec guardtime
;
729 struct nfs3_diropargs
{
735 struct nfs3_accessargs
{
740 struct nfs3_createargs
{
744 struct iattr
* sattr
;
745 enum nfs3_createmode createmode
;
749 struct nfs3_mkdirargs
{
753 struct iattr
* sattr
;
756 struct nfs3_symlinkargs
{
757 struct nfs_fh
* fromfh
;
758 const char * fromname
;
759 unsigned int fromlen
;
760 struct page
** pages
;
761 unsigned int pathlen
;
762 struct iattr
* sattr
;
765 struct nfs3_mknodargs
{
769 enum nfs3_ftype type
;
770 struct iattr
* sattr
;
774 struct nfs3_linkargs
{
775 struct nfs_fh
* fromfh
;
776 struct nfs_fh
* tofh
;
781 struct nfs3_readdirargs
{
787 struct page
** pages
;
790 struct nfs3_diropres
{
791 struct nfs_fattr
* dir_attr
;
793 struct nfs_fattr
* fattr
;
796 struct nfs3_accessres
{
797 struct nfs_fattr
* fattr
;
801 struct nfs3_readlinkargs
{
805 struct page
** pages
;
808 struct nfs3_linkres
{
809 struct nfs_fattr
* dir_attr
;
810 struct nfs_fattr
* fattr
;
813 struct nfs3_readdirres
{
814 struct nfs_fattr
* dir_attr
;
819 struct nfs3_getaclres
{
820 struct nfs_fattr
* fattr
;
822 unsigned int acl_access_count
;
823 unsigned int acl_default_count
;
824 struct posix_acl
* acl_access
;
825 struct posix_acl
* acl_default
;
828 #if IS_ENABLED(CONFIG_NFS_V4)
830 typedef u64 clientid4
;
832 struct nfs4_accessargs
{
833 struct nfs4_sequence_args seq_args
;
834 const struct nfs_fh
* fh
;
839 struct nfs4_accessres
{
840 struct nfs4_sequence_res seq_res
;
841 const struct nfs_server
* server
;
842 struct nfs_fattr
* fattr
;
847 struct nfs4_create_arg
{
848 struct nfs4_sequence_args seq_args
;
852 struct page
** pages
;
854 } symlink
; /* NF4LNK */
858 } device
; /* NF4BLK, NF4CHR */
860 const struct qstr
* name
;
861 const struct nfs_server
* server
;
862 const struct iattr
* attrs
;
863 const struct nfs_fh
* dir_fh
;
867 struct nfs4_create_res
{
868 struct nfs4_sequence_res seq_res
;
869 const struct nfs_server
* server
;
871 struct nfs_fattr
* fattr
;
872 struct nfs4_change_info dir_cinfo
;
875 struct nfs4_fsinfo_arg
{
876 struct nfs4_sequence_args seq_args
;
877 const struct nfs_fh
* fh
;
881 struct nfs4_fsinfo_res
{
882 struct nfs4_sequence_res seq_res
;
883 struct nfs_fsinfo
*fsinfo
;
886 struct nfs4_getattr_arg
{
887 struct nfs4_sequence_args seq_args
;
888 const struct nfs_fh
* fh
;
892 struct nfs4_getattr_res
{
893 struct nfs4_sequence_res seq_res
;
894 const struct nfs_server
* server
;
895 struct nfs_fattr
* fattr
;
898 struct nfs4_link_arg
{
899 struct nfs4_sequence_args seq_args
;
900 const struct nfs_fh
* fh
;
901 const struct nfs_fh
* dir_fh
;
902 const struct qstr
* name
;
906 struct nfs4_link_res
{
907 struct nfs4_sequence_res seq_res
;
908 const struct nfs_server
* server
;
909 struct nfs_fattr
* fattr
;
910 struct nfs4_change_info cinfo
;
911 struct nfs_fattr
* dir_attr
;
915 struct nfs4_lookup_arg
{
916 struct nfs4_sequence_args seq_args
;
917 const struct nfs_fh
* dir_fh
;
918 const struct qstr
* name
;
922 struct nfs4_lookup_res
{
923 struct nfs4_sequence_res seq_res
;
924 const struct nfs_server
* server
;
925 struct nfs_fattr
* fattr
;
929 struct nfs4_lookup_root_arg
{
930 struct nfs4_sequence_args seq_args
;
934 struct nfs4_pathconf_arg
{
935 struct nfs4_sequence_args seq_args
;
936 const struct nfs_fh
* fh
;
940 struct nfs4_pathconf_res
{
941 struct nfs4_sequence_res seq_res
;
942 struct nfs_pathconf
*pathconf
;
945 struct nfs4_readdir_arg
{
946 struct nfs4_sequence_args seq_args
;
947 const struct nfs_fh
* fh
;
949 nfs4_verifier verifier
;
951 struct page
** pages
; /* zero-copy data */
952 unsigned int pgbase
; /* zero-copy data */
957 struct nfs4_readdir_res
{
958 struct nfs4_sequence_res seq_res
;
959 nfs4_verifier verifier
;
963 struct nfs4_readlink
{
964 struct nfs4_sequence_args seq_args
;
965 const struct nfs_fh
* fh
;
967 unsigned int pglen
; /* zero-copy data */
968 struct page
** pages
; /* zero-copy data */
971 struct nfs4_readlink_res
{
972 struct nfs4_sequence_res seq_res
;
975 #define NFS4_SETCLIENTID_NAMELEN (127)
976 struct nfs4_setclientid
{
977 const nfs4_verifier
* sc_verifier
;
978 unsigned int sc_name_len
;
979 char sc_name
[NFS4_SETCLIENTID_NAMELEN
+ 1];
981 unsigned int sc_netid_len
;
982 char sc_netid
[RPCBIND_MAXNETIDLEN
+ 1];
983 unsigned int sc_uaddr_len
;
984 char sc_uaddr
[RPCBIND_MAXUADDRLEN
+ 1];
988 struct nfs4_setclientid_res
{
990 nfs4_verifier confirm
;
993 struct nfs4_statfs_arg
{
994 struct nfs4_sequence_args seq_args
;
995 const struct nfs_fh
* fh
;
999 struct nfs4_statfs_res
{
1000 struct nfs4_sequence_res seq_res
;
1001 struct nfs_fsstat
*fsstat
;
1004 struct nfs4_server_caps_arg
{
1005 struct nfs4_sequence_args seq_args
;
1006 struct nfs_fh
*fhandle
;
1009 struct nfs4_server_caps_res
{
1010 struct nfs4_sequence_res seq_res
;
1011 u32 attr_bitmask
[3];
1018 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1019 struct nfs4_pathname
{
1020 unsigned int ncomponents
;
1021 struct nfs4_string components
[NFS4_PATHNAME_MAXCOMPONENTS
];
1024 #define NFS4_FS_LOCATION_MAXSERVERS 10
1025 struct nfs4_fs_location
{
1026 unsigned int nservers
;
1027 struct nfs4_string servers
[NFS4_FS_LOCATION_MAXSERVERS
];
1028 struct nfs4_pathname rootpath
;
1031 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1032 struct nfs4_fs_locations
{
1033 struct nfs_fattr fattr
;
1034 const struct nfs_server
*server
;
1035 struct nfs4_pathname fs_path
;
1037 struct nfs4_fs_location locations
[NFS4_FS_LOCATIONS_MAXENTRIES
];
1040 struct nfs4_fs_locations_arg
{
1041 struct nfs4_sequence_args seq_args
;
1042 const struct nfs_fh
*dir_fh
;
1043 const struct qstr
*name
;
1048 struct nfs4_fs_locations_res
{
1049 struct nfs4_sequence_res seq_res
;
1050 struct nfs4_fs_locations
*fs_locations
;
1053 struct nfs4_secinfo_oid
{
1055 char data
[GSS_OID_MAX_LEN
];
1058 struct nfs4_secinfo_gss
{
1059 struct nfs4_secinfo_oid sec_oid4
;
1061 unsigned int service
;
1064 struct nfs4_secinfo_flavor
{
1065 unsigned int flavor
;
1066 struct nfs4_secinfo_gss gss
;
1069 struct nfs4_secinfo_flavors
{
1070 unsigned int num_flavors
;
1071 struct nfs4_secinfo_flavor flavors
[0];
1074 struct nfs4_secinfo_arg
{
1075 struct nfs4_sequence_args seq_args
;
1076 const struct nfs_fh
*dir_fh
;
1077 const struct qstr
*name
;
1080 struct nfs4_secinfo_res
{
1081 struct nfs4_sequence_res seq_res
;
1082 struct nfs4_secinfo_flavors
*flavors
;
1085 #endif /* CONFIG_NFS_V4 */
1092 #ifdef CONFIG_NFS_V4_1
1094 struct pnfs_commit_bucket
{
1095 struct list_head written
;
1096 struct list_head committing
;
1097 struct pnfs_layout_segment
*wlseg
;
1098 struct pnfs_layout_segment
*clseg
;
1101 struct pnfs_ds_commit_info
{
1105 struct pnfs_commit_bucket
*buckets
;
1108 #define NFS4_EXCHANGE_ID_LEN (48)
1109 struct nfs41_exchange_id_args
{
1110 struct nfs_client
*client
;
1111 nfs4_verifier
*verifier
;
1112 unsigned int id_len
;
1113 char id
[NFS4_EXCHANGE_ID_LEN
];
1117 struct nfs41_server_owner
{
1119 uint32_t major_id_sz
;
1120 char major_id
[NFS4_OPAQUE_LIMIT
];
1123 struct nfs41_server_scope
{
1124 uint32_t server_scope_sz
;
1125 char server_scope
[NFS4_OPAQUE_LIMIT
];
1128 struct nfs41_impl_id
{
1129 char domain
[NFS4_OPAQUE_LIMIT
+ 1];
1130 char name
[NFS4_OPAQUE_LIMIT
+ 1];
1131 struct nfstime4 date
;
1134 struct nfs41_bind_conn_to_session_res
{
1135 struct nfs4_session
*session
;
1137 bool use_conn_in_rdma_mode
;
1140 struct nfs41_exchange_id_res
{
1144 struct nfs41_server_owner
*server_owner
;
1145 struct nfs41_server_scope
*server_scope
;
1146 struct nfs41_impl_id
*impl_id
;
1149 struct nfs41_create_session_args
{
1150 struct nfs_client
*client
;
1152 uint32_t cb_program
;
1153 struct nfs4_channel_attrs fc_attrs
; /* Fore Channel */
1154 struct nfs4_channel_attrs bc_attrs
; /* Back Channel */
1157 struct nfs41_create_session_res
{
1158 struct nfs_client
*client
;
1161 struct nfs41_reclaim_complete_args
{
1162 struct nfs4_sequence_args seq_args
;
1163 /* In the future extend to include curr_fh for use with migration */
1164 unsigned char one_fs
:1;
1167 struct nfs41_reclaim_complete_res
{
1168 struct nfs4_sequence_res seq_res
;
1171 #define SECINFO_STYLE_CURRENT_FH 0
1172 #define SECINFO_STYLE_PARENT 1
1173 struct nfs41_secinfo_no_name_args
{
1174 struct nfs4_sequence_args seq_args
;
1178 struct nfs41_test_stateid_args
{
1179 struct nfs4_sequence_args seq_args
;
1180 nfs4_stateid
*stateid
;
1183 struct nfs41_test_stateid_res
{
1184 struct nfs4_sequence_res seq_res
;
1185 unsigned int status
;
1188 struct nfs41_free_stateid_args
{
1189 struct nfs4_sequence_args seq_args
;
1190 nfs4_stateid
*stateid
;
1193 struct nfs41_free_stateid_res
{
1194 struct nfs4_sequence_res seq_res
;
1195 unsigned int status
;
1200 struct pnfs_ds_commit_info
{
1203 #endif /* CONFIG_NFS_V4_1 */
1207 #define NFS_PAGEVEC_SIZE (8U)
1209 struct nfs_page_array
{
1210 struct page
**pagevec
;
1211 unsigned int npages
; /* Max length of pagevec */
1212 struct page
*page_array
[NFS_PAGEVEC_SIZE
];
1215 struct nfs_read_data
{
1216 struct nfs_pgio_header
*header
;
1217 struct list_head list
;
1218 struct rpc_task task
;
1219 struct nfs_fattr fattr
; /* fattr storage */
1220 struct nfs_readargs args
;
1221 struct nfs_readres res
;
1222 unsigned long timestamp
; /* For lease renewal */
1223 int (*read_done_cb
) (struct rpc_task
*task
, struct nfs_read_data
*data
);
1225 struct nfs_page_array pages
;
1226 struct nfs_client
*ds_clp
; /* pNFS data server */
1229 /* used as flag bits in nfs_pgio_header */
1231 NFS_IOHDR_ERROR
= 0,
1234 NFS_IOHDR_NEED_COMMIT
,
1235 NFS_IOHDR_NEED_RESCHED
,
1238 struct nfs_pgio_header
{
1239 struct inode
*inode
;
1240 struct rpc_cred
*cred
;
1241 struct list_head pages
;
1242 struct list_head rpc_list
;
1244 struct nfs_page
*req
;
1245 struct nfs_writeverf
*verf
;
1246 struct pnfs_layout_segment
*lseg
;
1248 const struct rpc_call_ops
*mds_ops
;
1249 void (*release
) (struct nfs_pgio_header
*hdr
);
1250 const struct nfs_pgio_completion_ops
*completion_ops
;
1251 struct nfs_direct_req
*dreq
;
1252 void *layout_private
;
1254 /* fields protected by lock */
1256 int error
; /* merge with pnfs_error */
1257 unsigned long good_bytes
; /* boundary of good data */
1258 unsigned long flags
;
1261 struct nfs_read_header
{
1262 struct nfs_pgio_header header
;
1263 struct nfs_read_data rpc_data
;
1266 struct nfs_write_data
{
1267 struct nfs_pgio_header
*header
;
1268 struct list_head list
;
1269 struct rpc_task task
;
1270 struct nfs_fattr fattr
;
1271 struct nfs_writeverf verf
;
1272 struct nfs_writeargs args
; /* argument struct */
1273 struct nfs_writeres res
; /* result struct */
1274 unsigned long timestamp
; /* For lease renewal */
1275 int (*write_done_cb
) (struct rpc_task
*task
, struct nfs_write_data
*data
);
1276 __u64 mds_offset
; /* Filelayout dense stripe */
1277 struct nfs_page_array pages
;
1278 struct nfs_client
*ds_clp
; /* pNFS data server */
1281 struct nfs_write_header
{
1282 struct nfs_pgio_header header
;
1283 struct nfs_write_data rpc_data
;
1284 struct nfs_writeverf verf
;
1287 struct nfs_mds_commit_info
{
1289 unsigned long ncommit
;
1290 struct list_head list
;
1293 struct nfs_commit_data
;
1295 struct nfs_commit_completion_ops
{
1296 void (*error_cleanup
) (struct nfs_inode
*nfsi
);
1297 void (*completion
) (struct nfs_commit_data
*data
);
1300 struct nfs_commit_info
{
1302 struct nfs_mds_commit_info
*mds
;
1303 struct pnfs_ds_commit_info
*ds
;
1304 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1305 const struct nfs_commit_completion_ops
*completion_ops
;
1308 struct nfs_commit_data
{
1309 struct rpc_task task
;
1310 struct inode
*inode
;
1311 struct rpc_cred
*cred
;
1312 struct nfs_fattr fattr
;
1313 struct nfs_writeverf verf
;
1314 struct list_head pages
; /* Coalesced requests we wish to flush */
1315 struct list_head list
; /* lists of struct nfs_write_data */
1316 struct nfs_direct_req
*dreq
; /* O_DIRECT request */
1317 struct nfs_commitargs args
; /* argument struct */
1318 struct nfs_commitres res
; /* result struct */
1319 struct nfs_open_context
*context
;
1320 struct pnfs_layout_segment
*lseg
;
1321 struct nfs_client
*ds_clp
; /* pNFS data server */
1322 int ds_commit_index
;
1323 const struct rpc_call_ops
*mds_ops
;
1324 const struct nfs_commit_completion_ops
*completion_ops
;
1325 int (*commit_done_cb
) (struct rpc_task
*task
, struct nfs_commit_data
*data
);
1328 struct nfs_pgio_completion_ops
{
1329 void (*error_cleanup
)(struct list_head
*head
);
1330 void (*init_hdr
)(struct nfs_pgio_header
*hdr
);
1331 void (*completion
)(struct nfs_pgio_header
*hdr
);
1334 struct nfs_unlinkdata
{
1335 struct hlist_node list
;
1336 struct nfs_removeargs args
;
1337 struct nfs_removeres res
;
1339 struct rpc_cred
*cred
;
1340 struct nfs_fattr dir_attr
;
1343 struct nfs_renamedata
{
1344 struct nfs_renameargs args
;
1345 struct nfs_renameres res
;
1346 struct rpc_cred
*cred
;
1347 struct inode
*old_dir
;
1348 struct dentry
*old_dentry
;
1349 struct nfs_fattr old_fattr
;
1350 struct inode
*new_dir
;
1351 struct dentry
*new_dentry
;
1352 struct nfs_fattr new_fattr
;
1355 struct nfs_access_entry
;
1358 struct nfs_subversion
;
1359 struct nfs_mount_info
;
1360 struct nfs_client_initdata
;
1361 struct nfs_pageio_descriptor
;
1364 * RPC procedure vector for NFSv2/NFSv3 demuxing
1366 struct nfs_rpc_ops
{
1367 u32 version
; /* Protocol version */
1368 const struct dentry_operations
*dentry_ops
;
1369 const struct inode_operations
*dir_inode_ops
;
1370 const struct inode_operations
*file_inode_ops
;
1371 const struct file_operations
*file_ops
;
1373 int (*getroot
) (struct nfs_server
*, struct nfs_fh
*,
1374 struct nfs_fsinfo
*);
1375 struct vfsmount
*(*submount
) (struct nfs_server
*, struct dentry
*,
1376 struct nfs_fh
*, struct nfs_fattr
*);
1377 struct dentry
*(*try_mount
) (int, const char *, struct nfs_mount_info
*,
1378 struct nfs_subversion
*);
1379 int (*getattr
) (struct nfs_server
*, struct nfs_fh
*,
1380 struct nfs_fattr
*);
1381 int (*setattr
) (struct dentry
*, struct nfs_fattr
*,
1383 int (*lookup
) (struct inode
*, struct qstr
*,
1384 struct nfs_fh
*, struct nfs_fattr
*);
1385 int (*access
) (struct inode
*, struct nfs_access_entry
*);
1386 int (*readlink
)(struct inode
*, struct page
*, unsigned int,
1388 int (*create
) (struct inode
*, struct dentry
*,
1389 struct iattr
*, int);
1390 int (*remove
) (struct inode
*, struct qstr
*);
1391 void (*unlink_setup
) (struct rpc_message
*, struct inode
*dir
);
1392 void (*unlink_rpc_prepare
) (struct rpc_task
*, struct nfs_unlinkdata
*);
1393 int (*unlink_done
) (struct rpc_task
*, struct inode
*);
1394 int (*rename
) (struct inode
*, struct qstr
*,
1395 struct inode
*, struct qstr
*);
1396 void (*rename_setup
) (struct rpc_message
*msg
, struct inode
*dir
);
1397 void (*rename_rpc_prepare
)(struct rpc_task
*task
, struct nfs_renamedata
*);
1398 int (*rename_done
) (struct rpc_task
*task
, struct inode
*old_dir
, struct inode
*new_dir
);
1399 int (*link
) (struct inode
*, struct inode
*, struct qstr
*);
1400 int (*symlink
) (struct inode
*, struct dentry
*, struct page
*,
1401 unsigned int, struct iattr
*);
1402 int (*mkdir
) (struct inode
*, struct dentry
*, struct iattr
*);
1403 int (*rmdir
) (struct inode
*, struct qstr
*);
1404 int (*readdir
) (struct dentry
*, struct rpc_cred
*,
1405 u64
, struct page
**, unsigned int, int);
1406 int (*mknod
) (struct inode
*, struct dentry
*, struct iattr
*,
1408 int (*statfs
) (struct nfs_server
*, struct nfs_fh
*,
1409 struct nfs_fsstat
*);
1410 int (*fsinfo
) (struct nfs_server
*, struct nfs_fh
*,
1411 struct nfs_fsinfo
*);
1412 int (*pathconf
) (struct nfs_server
*, struct nfs_fh
*,
1413 struct nfs_pathconf
*);
1414 int (*set_capabilities
)(struct nfs_server
*, struct nfs_fh
*);
1415 int (*decode_dirent
)(struct xdr_stream
*, struct nfs_entry
*, int);
1416 void (*read_setup
) (struct nfs_read_data
*, struct rpc_message
*);
1417 void (*read_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*,
1418 const struct nfs_pgio_completion_ops
*);
1419 void (*read_rpc_prepare
)(struct rpc_task
*, struct nfs_read_data
*);
1420 int (*read_done
) (struct rpc_task
*, struct nfs_read_data
*);
1421 void (*write_setup
) (struct nfs_write_data
*, struct rpc_message
*);
1422 void (*write_pageio_init
)(struct nfs_pageio_descriptor
*, struct inode
*, int,
1423 const struct nfs_pgio_completion_ops
*);
1424 void (*write_rpc_prepare
)(struct rpc_task
*, struct nfs_write_data
*);
1425 int (*write_done
) (struct rpc_task
*, struct nfs_write_data
*);
1426 void (*commit_setup
) (struct nfs_commit_data
*, struct rpc_message
*);
1427 void (*commit_rpc_prepare
)(struct rpc_task
*, struct nfs_commit_data
*);
1428 int (*commit_done
) (struct rpc_task
*, struct nfs_commit_data
*);
1429 int (*lock
)(struct file
*, int, struct file_lock
*);
1430 int (*lock_check_bounds
)(const struct file_lock
*);
1431 void (*clear_acl_cache
)(struct inode
*);
1432 void (*close_context
)(struct nfs_open_context
*ctx
, int);
1433 struct inode
* (*open_context
) (struct inode
*dir
,
1434 struct nfs_open_context
*ctx
,
1436 struct iattr
*iattr
);
1437 int (*have_delegation
)(struct inode
*, fmode_t
);
1438 int (*return_delegation
)(struct inode
*);
1439 struct nfs_client
*(*alloc_client
) (const struct nfs_client_initdata
*);
1441 (*init_client
) (struct nfs_client
*, const struct rpc_timeout
*,
1442 const char *, rpc_authflavor_t
);
1443 void (*free_client
) (struct nfs_client
*);
1444 struct nfs_server
*(*create_server
)(struct nfs_mount_info
*, struct nfs_subversion
*);
1445 struct nfs_server
*(*clone_server
)(struct nfs_server
*, struct nfs_fh
*,
1446 struct nfs_fattr
*, rpc_authflavor_t
);
1450 * NFS_CALL(getattr, inode, (fattr));
1452 * NFS_PROTO(inode)->getattr(fattr);
1454 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1457 * Function vectors etc. for the NFS client
1459 extern const struct nfs_rpc_ops nfs_v2_clientops
;
1460 extern const struct nfs_rpc_ops nfs_v3_clientops
;
1461 extern const struct nfs_rpc_ops nfs_v4_clientops
;
1462 extern const struct rpc_version nfs_version2
;
1463 extern const struct rpc_version nfs_version3
;
1464 extern const struct rpc_version nfs_version4
;
1466 extern const struct rpc_version nfsacl_version3
;
1467 extern const struct rpc_program nfsacl_program
;