1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
28 * Helper for checking equality between 2 fsids.
30 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
32 return a->major == b->major && a->minor == b->minor;
35 struct nfs4_threshold {
45 unsigned int valid; /* which fields are valid */
63 __u64 mounted_on_fileid;
64 struct timespec atime;
65 struct timespec mtime;
66 struct timespec ctime;
67 __u64 change_attr; /* NFSv4 change attribute */
68 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
69 __u64 pre_size; /* pre_op_attr.size */
70 struct timespec pre_mtime; /* pre_op_attr.mtime */
71 struct timespec pre_ctime; /* pre_op_attr.ctime */
72 unsigned long time_start;
73 unsigned long gencount;
74 struct nfs4_string *owner_name;
75 struct nfs4_string *group_name;
76 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
128 * Info on the file system
131 struct nfs_fattr *fattr; /* Post-op attributes */
132 __u32 rtmax; /* max. read transfer size */
133 __u32 rtpref; /* pref. read transfer size */
134 __u32 rtmult; /* reads should be multiple of this */
135 __u32 wtmax; /* max. write transfer size */
136 __u32 wtpref; /* pref. write transfer size */
137 __u32 wtmult; /* writes should be multiple of this */
138 __u32 dtpref; /* pref. readdir transfer size */
140 struct timespec time_delta; /* server time granularity */
141 __u32 lease_time; /* in seconds */
142 __u32 layouttype; /* supported pnfs layout driver */
143 __u32 blksize; /* preferred pnfs io block size */
144 __u32 clone_blksize; /* granularity of a CLONE operation */
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;
252 struct rpc_cred *cred;
257 struct nfs4_getdeviceinfo_args {
258 struct nfs4_sequence_args seq_args;
259 struct pnfs_device *pdev;
263 struct nfs4_getdeviceinfo_res {
264 struct nfs4_sequence_res seq_res;
265 struct pnfs_device *pdev;
269 struct nfs4_layoutcommit_args {
270 struct nfs4_sequence_args seq_args;
271 nfs4_stateid stateid;
272 __u64 lastbytewritten;
275 size_t layoutupdate_len;
276 struct page *layoutupdate_page;
277 struct page **layoutupdate_pages;
280 struct nfs4_layoutcommit_res {
281 struct nfs4_sequence_res seq_res;
282 struct nfs_fattr *fattr;
283 const struct nfs_server *server;
287 struct nfs4_layoutcommit_data {
288 struct rpc_task task;
289 struct nfs_fattr fattr;
290 struct list_head lseg_list;
291 struct rpc_cred *cred;
293 struct nfs4_layoutcommit_args args;
294 struct nfs4_layoutcommit_res res;
297 struct nfs4_layoutreturn_args {
298 struct nfs4_sequence_args seq_args;
299 struct pnfs_layout_hdr *layout;
301 struct pnfs_layout_range range;
302 nfs4_stateid stateid;
306 struct nfs4_layoutreturn_res {
307 struct nfs4_sequence_res seq_res;
309 nfs4_stateid stateid;
312 struct nfs4_layoutreturn {
313 struct nfs4_layoutreturn_args args;
314 struct nfs4_layoutreturn_res res;
315 struct rpc_cred *cred;
316 struct nfs_client *clp;
321 #define PNFS_LAYOUTSTATS_MAXSIZE 256
323 struct nfs42_layoutstat_args;
324 struct nfs42_layoutstat_devinfo;
325 typedef void (*layoutstats_encode_t)(struct xdr_stream *,
326 struct nfs42_layoutstat_args *,
327 struct nfs42_layoutstat_devinfo *);
329 /* Per file per deviceid layoutstats */
330 struct nfs42_layoutstat_devinfo {
331 struct nfs4_deviceid dev_id;
339 layoutstats_encode_t layoutstats_encode;
340 void *layout_private;
343 struct nfs42_layoutstat_args {
344 struct nfs4_sequence_args seq_args;
347 nfs4_stateid stateid;
349 struct nfs42_layoutstat_devinfo *devinfo;
352 struct nfs42_layoutstat_res {
353 struct nfs4_sequence_res seq_res;
358 struct nfs42_layoutstat_data {
360 struct nfs42_layoutstat_args args;
361 struct nfs42_layoutstat_res res;
364 struct nfs42_clone_args {
365 struct nfs4_sequence_args seq_args;
366 struct nfs_fh *src_fh;
367 struct nfs_fh *dst_fh;
368 nfs4_stateid src_stateid;
369 nfs4_stateid dst_stateid;
373 const u32 *dst_bitmask;
376 struct nfs42_clone_res {
377 struct nfs4_sequence_res seq_res;
378 unsigned int rpc_status;
379 struct nfs_fattr *dst_fattr;
380 const struct nfs_server *server;
383 struct stateowner_id {
389 * Arguments to the open call.
391 struct nfs_openargs {
392 struct nfs4_sequence_args seq_args;
393 const struct nfs_fh * fh;
394 struct nfs_seqid * seqid;
400 struct stateowner_id id;
403 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
404 nfs4_verifier verifier; /* EXCLUSIVE */
406 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
407 fmode_t delegation_type; /* CLAIM_PREVIOUS */
409 const struct qstr * name;
410 const struct nfs_server *server; /* Needed for ID mapping */
412 const u32 * open_bitmap;
413 enum open_claim_type4 claim;
414 enum createmode4 createmode;
415 const struct nfs4_label *label;
419 struct nfs4_sequence_res seq_res;
420 nfs4_stateid stateid;
422 struct nfs4_change_info cinfo;
424 struct nfs_fattr * f_attr;
425 struct nfs4_label *f_label;
426 struct nfs_seqid * seqid;
427 const struct nfs_server *server;
428 fmode_t delegation_type;
429 nfs4_stateid delegation;
430 unsigned long pagemod_limit;
432 __u32 attrset[NFS4_BITMAP_SIZE];
433 struct nfs4_string *owner;
434 struct nfs4_string *group_owner;
435 __u32 access_request;
436 __u32 access_supported;
441 * Arguments to the open_confirm call.
443 struct nfs_open_confirmargs {
444 struct nfs4_sequence_args seq_args;
445 const struct nfs_fh * fh;
446 nfs4_stateid * stateid;
447 struct nfs_seqid * seqid;
450 struct nfs_open_confirmres {
451 struct nfs4_sequence_res seq_res;
452 nfs4_stateid stateid;
453 struct nfs_seqid * seqid;
457 * Arguments to the close call.
459 struct nfs_closeargs {
460 struct nfs4_sequence_args seq_args;
462 nfs4_stateid stateid;
463 struct nfs_seqid * seqid;
469 struct nfs_closeres {
470 struct nfs4_sequence_res seq_res;
471 nfs4_stateid stateid;
472 struct nfs_fattr * fattr;
473 struct nfs_seqid * seqid;
474 const struct nfs_server *server;
477 * * Arguments to the lock,lockt, and locku call.
485 struct nfs_lock_args {
486 struct nfs4_sequence_args seq_args;
488 struct file_lock * fl;
489 struct nfs_seqid * lock_seqid;
490 nfs4_stateid lock_stateid;
491 struct nfs_seqid * open_seqid;
492 nfs4_stateid open_stateid;
493 struct nfs_lowner lock_owner;
494 unsigned char block : 1;
495 unsigned char reclaim : 1;
496 unsigned char new_lock : 1;
497 unsigned char new_lock_owner : 1;
500 struct nfs_lock_res {
501 struct nfs4_sequence_res seq_res;
502 nfs4_stateid stateid;
503 struct nfs_seqid * lock_seqid;
504 struct nfs_seqid * open_seqid;
507 struct nfs_locku_args {
508 struct nfs4_sequence_args seq_args;
510 struct file_lock * fl;
511 struct nfs_seqid * seqid;
512 nfs4_stateid stateid;
515 struct nfs_locku_res {
516 struct nfs4_sequence_res seq_res;
517 nfs4_stateid stateid;
518 struct nfs_seqid * seqid;
521 struct nfs_lockt_args {
522 struct nfs4_sequence_args seq_args;
524 struct file_lock * fl;
525 struct nfs_lowner lock_owner;
528 struct nfs_lockt_res {
529 struct nfs4_sequence_res seq_res;
530 struct file_lock * denied; /* LOCK, LOCKT failed */
533 struct nfs_release_lockowner_args {
534 struct nfs4_sequence_args seq_args;
535 struct nfs_lowner lock_owner;
538 struct nfs_release_lockowner_res {
539 struct nfs4_sequence_res seq_res;
542 struct nfs4_delegreturnargs {
543 struct nfs4_sequence_args seq_args;
544 const struct nfs_fh *fhandle;
545 const nfs4_stateid *stateid;
549 struct nfs4_delegreturnres {
550 struct nfs4_sequence_res seq_res;
551 struct nfs_fattr * fattr;
552 struct nfs_server *server;
556 * Arguments to the write call.
558 struct nfs_write_verifier {
562 struct nfs_writeverf {
563 struct nfs_write_verifier verifier;
564 enum nfs3_stable_how committed;
568 * Arguments shared by the read and write call.
570 struct nfs_pgio_args {
571 struct nfs4_sequence_args seq_args;
573 struct nfs_open_context *context;
574 struct nfs_lock_context *lock_context;
575 nfs4_stateid stateid;
579 struct page ** pages;
580 const u32 * bitmask; /* used by write */
581 enum nfs3_stable_how stable; /* used by write */
584 struct nfs_pgio_res {
585 struct nfs4_sequence_res seq_res;
586 struct nfs_fattr * fattr;
589 int eof; /* used by read */
590 struct nfs_writeverf * verf; /* used by write */
591 const struct nfs_server *server; /* used by write */
596 * Arguments to the commit call.
598 struct nfs_commitargs {
599 struct nfs4_sequence_args seq_args;
606 struct nfs_commitres {
607 struct nfs4_sequence_res seq_res;
609 struct nfs_fattr *fattr;
610 struct nfs_writeverf *verf;
611 const struct nfs_server *server;
615 * Common arguments to the unlink call
617 struct nfs_removeargs {
618 struct nfs4_sequence_args seq_args;
619 const struct nfs_fh *fh;
623 struct nfs_removeres {
624 struct nfs4_sequence_res seq_res;
625 struct nfs_server *server;
626 struct nfs_fattr *dir_attr;
627 struct nfs4_change_info cinfo;
631 * Common arguments to the rename call
633 struct nfs_renameargs {
634 struct nfs4_sequence_args seq_args;
635 const struct nfs_fh *old_dir;
636 const struct nfs_fh *new_dir;
637 const struct qstr *old_name;
638 const struct qstr *new_name;
641 struct nfs_renameres {
642 struct nfs4_sequence_res seq_res;
643 struct nfs_server *server;
644 struct nfs4_change_info old_cinfo;
645 struct nfs_fattr *old_fattr;
646 struct nfs4_change_info new_cinfo;
647 struct nfs_fattr *new_fattr;
650 /* parsed sec= options */
651 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
652 struct nfs_auth_info {
653 unsigned int flavor_len;
654 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
658 * Argument struct for decode_entry function
668 struct nfs_fattr * fattr;
669 struct nfs4_label *label;
670 unsigned char d_type;
671 struct nfs_server * server;
675 * The following types are for NFSv2 only.
677 struct nfs_sattrargs {
679 struct iattr * sattr;
682 struct nfs_diropargs {
688 struct nfs_createargs {
692 struct iattr * sattr;
695 struct nfs_setattrargs {
696 struct nfs4_sequence_args seq_args;
698 nfs4_stateid stateid;
700 const struct nfs_server * server; /* Needed for name mapping */
702 const struct nfs4_label *label;
705 struct nfs_setaclargs {
706 struct nfs4_sequence_args seq_args;
709 struct page ** acl_pages;
712 struct nfs_setaclres {
713 struct nfs4_sequence_res seq_res;
716 struct nfs_getaclargs {
717 struct nfs4_sequence_args seq_args;
720 struct page ** acl_pages;
723 /* getxattr ACL interface flags */
724 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
725 struct nfs_getaclres {
726 struct nfs4_sequence_res seq_res;
728 size_t acl_data_offset;
730 struct page * acl_scratch;
733 struct nfs_setattrres {
734 struct nfs4_sequence_res seq_res;
735 struct nfs_fattr * fattr;
736 struct nfs4_label *label;
737 const struct nfs_server * server;
740 struct nfs_linkargs {
741 struct nfs_fh * fromfh;
742 struct nfs_fh * tofh;
747 struct nfs_symlinkargs {
748 struct nfs_fh * fromfh;
749 const char * fromname;
750 unsigned int fromlen;
751 struct page ** pages;
752 unsigned int pathlen;
753 struct iattr * sattr;
756 struct nfs_readdirargs {
760 struct page ** pages;
763 struct nfs3_getaclargs {
766 struct page ** pages;
769 struct nfs3_setaclargs {
770 struct inode * inode;
772 struct posix_acl * acl_access;
773 struct posix_acl * acl_default;
776 struct page ** pages;
781 struct nfs_fattr * fattr;
784 struct nfs_readlinkargs {
788 struct page ** pages;
791 struct nfs3_sattrargs {
793 struct iattr * sattr;
795 struct timespec guardtime;
798 struct nfs3_diropargs {
804 struct nfs3_accessargs {
809 struct nfs3_createargs {
813 struct iattr * sattr;
814 enum nfs3_createmode createmode;
818 struct nfs3_mkdirargs {
822 struct iattr * sattr;
825 struct nfs3_symlinkargs {
826 struct nfs_fh * fromfh;
827 const char * fromname;
828 unsigned int fromlen;
829 struct page ** pages;
830 unsigned int pathlen;
831 struct iattr * sattr;
834 struct nfs3_mknodargs {
838 enum nfs3_ftype type;
839 struct iattr * sattr;
843 struct nfs3_linkargs {
844 struct nfs_fh * fromfh;
845 struct nfs_fh * tofh;
850 struct nfs3_readdirargs {
856 struct page ** pages;
859 struct nfs3_diropres {
860 struct nfs_fattr * dir_attr;
862 struct nfs_fattr * fattr;
865 struct nfs3_accessres {
866 struct nfs_fattr * fattr;
870 struct nfs3_readlinkargs {
874 struct page ** pages;
877 struct nfs3_linkres {
878 struct nfs_fattr * dir_attr;
879 struct nfs_fattr * fattr;
882 struct nfs3_readdirres {
883 struct nfs_fattr * dir_attr;
888 struct nfs3_getaclres {
889 struct nfs_fattr * fattr;
891 unsigned int acl_access_count;
892 unsigned int acl_default_count;
893 struct posix_acl * acl_access;
894 struct posix_acl * acl_default;
897 #if IS_ENABLED(CONFIG_NFS_V4)
899 typedef u64 clientid4;
901 struct nfs4_accessargs {
902 struct nfs4_sequence_args seq_args;
903 const struct nfs_fh * fh;
908 struct nfs4_accessres {
909 struct nfs4_sequence_res seq_res;
910 const struct nfs_server * server;
911 struct nfs_fattr * fattr;
916 struct nfs4_create_arg {
917 struct nfs4_sequence_args seq_args;
921 struct page ** pages;
923 } symlink; /* NF4LNK */
927 } device; /* NF4BLK, NF4CHR */
929 const struct qstr * name;
930 const struct nfs_server * server;
931 const struct iattr * attrs;
932 const struct nfs_fh * dir_fh;
934 const struct nfs4_label *label;
937 struct nfs4_create_res {
938 struct nfs4_sequence_res seq_res;
939 const struct nfs_server * server;
941 struct nfs_fattr * fattr;
942 struct nfs4_label *label;
943 struct nfs4_change_info dir_cinfo;
946 struct nfs4_fsinfo_arg {
947 struct nfs4_sequence_args seq_args;
948 const struct nfs_fh * fh;
952 struct nfs4_fsinfo_res {
953 struct nfs4_sequence_res seq_res;
954 struct nfs_fsinfo *fsinfo;
957 struct nfs4_getattr_arg {
958 struct nfs4_sequence_args seq_args;
959 const struct nfs_fh * fh;
963 struct nfs4_getattr_res {
964 struct nfs4_sequence_res seq_res;
965 const struct nfs_server * server;
966 struct nfs_fattr * fattr;
967 struct nfs4_label *label;
970 struct nfs4_link_arg {
971 struct nfs4_sequence_args seq_args;
972 const struct nfs_fh * fh;
973 const struct nfs_fh * dir_fh;
974 const struct qstr * name;
978 struct nfs4_link_res {
979 struct nfs4_sequence_res seq_res;
980 const struct nfs_server * server;
981 struct nfs_fattr * fattr;
982 struct nfs4_label *label;
983 struct nfs4_change_info cinfo;
984 struct nfs_fattr * dir_attr;
988 struct nfs4_lookup_arg {
989 struct nfs4_sequence_args seq_args;
990 const struct nfs_fh * dir_fh;
991 const struct qstr * name;
995 struct nfs4_lookup_res {
996 struct nfs4_sequence_res seq_res;
997 const struct nfs_server * server;
998 struct nfs_fattr * fattr;
1000 struct nfs4_label *label;
1003 struct nfs4_lookup_root_arg {
1004 struct nfs4_sequence_args seq_args;
1005 const u32 * bitmask;
1008 struct nfs4_pathconf_arg {
1009 struct nfs4_sequence_args seq_args;
1010 const struct nfs_fh * fh;
1011 const u32 * bitmask;
1014 struct nfs4_pathconf_res {
1015 struct nfs4_sequence_res seq_res;
1016 struct nfs_pathconf *pathconf;
1019 struct nfs4_readdir_arg {
1020 struct nfs4_sequence_args seq_args;
1021 const struct nfs_fh * fh;
1023 nfs4_verifier verifier;
1025 struct page ** pages; /* zero-copy data */
1026 unsigned int pgbase; /* zero-copy data */
1027 const u32 * bitmask;
1031 struct nfs4_readdir_res {
1032 struct nfs4_sequence_res seq_res;
1033 nfs4_verifier verifier;
1034 unsigned int pgbase;
1037 struct nfs4_readlink {
1038 struct nfs4_sequence_args seq_args;
1039 const struct nfs_fh * fh;
1040 unsigned int pgbase;
1041 unsigned int pglen; /* zero-copy data */
1042 struct page ** pages; /* zero-copy data */
1045 struct nfs4_readlink_res {
1046 struct nfs4_sequence_res seq_res;
1049 struct nfs4_setclientid {
1050 const nfs4_verifier * sc_verifier;
1052 unsigned int sc_netid_len;
1053 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1054 unsigned int sc_uaddr_len;
1055 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1056 struct nfs_client *sc_clnt;
1057 struct rpc_cred *sc_cred;
1060 struct nfs4_setclientid_res {
1062 nfs4_verifier confirm;
1065 struct nfs4_statfs_arg {
1066 struct nfs4_sequence_args seq_args;
1067 const struct nfs_fh * fh;
1068 const u32 * bitmask;
1071 struct nfs4_statfs_res {
1072 struct nfs4_sequence_res seq_res;
1073 struct nfs_fsstat *fsstat;
1076 struct nfs4_server_caps_arg {
1077 struct nfs4_sequence_args seq_args;
1078 struct nfs_fh *fhandle;
1079 const u32 * bitmask;
1082 struct nfs4_server_caps_res {
1083 struct nfs4_sequence_res seq_res;
1084 u32 attr_bitmask[3];
1085 u32 exclcreat_bitmask[3];
1092 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1093 struct nfs4_pathname {
1094 unsigned int ncomponents;
1095 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1098 #define NFS4_FS_LOCATION_MAXSERVERS 10
1099 struct nfs4_fs_location {
1100 unsigned int nservers;
1101 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1102 struct nfs4_pathname rootpath;
1105 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1106 struct nfs4_fs_locations {
1107 struct nfs_fattr fattr;
1108 const struct nfs_server *server;
1109 struct nfs4_pathname fs_path;
1111 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1114 struct nfs4_fs_locations_arg {
1115 struct nfs4_sequence_args seq_args;
1116 const struct nfs_fh *dir_fh;
1117 const struct nfs_fh *fh;
1118 const struct qstr *name;
1122 unsigned char migration:1, renew:1;
1125 struct nfs4_fs_locations_res {
1126 struct nfs4_sequence_res seq_res;
1127 struct nfs4_fs_locations *fs_locations;
1128 unsigned char migration:1, renew:1;
1131 struct nfs4_secinfo4 {
1133 struct rpcsec_gss_info flavor_info;
1136 struct nfs4_secinfo_flavors {
1137 unsigned int num_flavors;
1138 struct nfs4_secinfo4 flavors[0];
1141 struct nfs4_secinfo_arg {
1142 struct nfs4_sequence_args seq_args;
1143 const struct nfs_fh *dir_fh;
1144 const struct qstr *name;
1147 struct nfs4_secinfo_res {
1148 struct nfs4_sequence_res seq_res;
1149 struct nfs4_secinfo_flavors *flavors;
1152 struct nfs4_fsid_present_arg {
1153 struct nfs4_sequence_args seq_args;
1154 const struct nfs_fh *fh;
1156 unsigned char renew:1;
1159 struct nfs4_fsid_present_res {
1160 struct nfs4_sequence_res seq_res;
1162 unsigned char renew:1;
1165 #endif /* CONFIG_NFS_V4 */
1172 #ifdef CONFIG_NFS_V4_1
1174 struct pnfs_commit_bucket {
1175 struct list_head written;
1176 struct list_head committing;
1177 struct pnfs_layout_segment *wlseg;
1178 struct pnfs_layout_segment *clseg;
1179 struct nfs_writeverf direct_verf;
1182 struct pnfs_ds_commit_info {
1186 struct pnfs_commit_bucket *buckets;
1189 #define NFS4_OP_MAP_NUM_LONGS \
1190 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1191 #define NFS4_OP_MAP_NUM_WORDS \
1192 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1193 struct nfs4_op_map {
1195 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1196 u32 words[NFS4_OP_MAP_NUM_WORDS];
1200 struct nfs41_state_protection {
1202 struct nfs4_op_map enforce;
1203 struct nfs4_op_map allow;
1206 struct nfs41_exchange_id_args {
1207 struct nfs_client *client;
1208 nfs4_verifier *verifier;
1210 struct nfs41_state_protection state_protect;
1213 struct nfs41_server_owner {
1215 uint32_t major_id_sz;
1216 char major_id[NFS4_OPAQUE_LIMIT];
1219 struct nfs41_server_scope {
1220 uint32_t server_scope_sz;
1221 char server_scope[NFS4_OPAQUE_LIMIT];
1224 struct nfs41_impl_id {
1225 char domain[NFS4_OPAQUE_LIMIT + 1];
1226 char name[NFS4_OPAQUE_LIMIT + 1];
1227 struct nfstime4 date;
1230 struct nfs41_bind_conn_to_session_args {
1231 struct nfs_client *client;
1232 struct nfs4_sessionid sessionid;
1234 bool use_conn_in_rdma_mode;
1237 struct nfs41_bind_conn_to_session_res {
1238 struct nfs4_sessionid sessionid;
1240 bool use_conn_in_rdma_mode;
1243 struct nfs41_exchange_id_res {
1247 struct nfs41_server_owner *server_owner;
1248 struct nfs41_server_scope *server_scope;
1249 struct nfs41_impl_id *impl_id;
1250 struct nfs41_state_protection state_protect;
1253 struct nfs41_create_session_args {
1254 struct nfs_client *client;
1258 uint32_t cb_program;
1259 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1260 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1263 struct nfs41_create_session_res {
1264 struct nfs4_sessionid sessionid;
1267 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1268 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1271 struct nfs41_reclaim_complete_args {
1272 struct nfs4_sequence_args seq_args;
1273 /* In the future extend to include curr_fh for use with migration */
1274 unsigned char one_fs:1;
1277 struct nfs41_reclaim_complete_res {
1278 struct nfs4_sequence_res seq_res;
1281 #define SECINFO_STYLE_CURRENT_FH 0
1282 #define SECINFO_STYLE_PARENT 1
1283 struct nfs41_secinfo_no_name_args {
1284 struct nfs4_sequence_args seq_args;
1288 struct nfs41_test_stateid_args {
1289 struct nfs4_sequence_args seq_args;
1290 nfs4_stateid *stateid;
1293 struct nfs41_test_stateid_res {
1294 struct nfs4_sequence_res seq_res;
1295 unsigned int status;
1298 struct nfs41_free_stateid_args {
1299 struct nfs4_sequence_args seq_args;
1300 nfs4_stateid stateid;
1303 struct nfs41_free_stateid_res {
1304 struct nfs4_sequence_res seq_res;
1305 unsigned int status;
1309 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1311 kfree(cinfo->buckets);
1316 struct pnfs_ds_commit_info {
1320 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1324 #endif /* CONFIG_NFS_V4_1 */
1326 #ifdef CONFIG_NFS_V4_2
1327 struct nfs42_falloc_args {
1328 struct nfs4_sequence_args seq_args;
1330 struct nfs_fh *falloc_fh;
1331 nfs4_stateid falloc_stateid;
1334 const u32 *falloc_bitmask;
1337 struct nfs42_falloc_res {
1338 struct nfs4_sequence_res seq_res;
1339 unsigned int status;
1341 struct nfs_fattr *falloc_fattr;
1342 const struct nfs_server *falloc_server;
1345 struct nfs42_seek_args {
1346 struct nfs4_sequence_args seq_args;
1348 struct nfs_fh *sa_fh;
1349 nfs4_stateid sa_stateid;
1354 struct nfs42_seek_res {
1355 struct nfs4_sequence_res seq_res;
1356 unsigned int status;
1365 #define NFS_PAGEVEC_SIZE (8U)
1367 struct nfs_page_array {
1368 struct page **pagevec;
1369 unsigned int npages; /* Max length of pagevec */
1370 struct page *page_array[NFS_PAGEVEC_SIZE];
1373 /* used as flag bits in nfs_pgio_header */
1375 NFS_IOHDR_ERROR = 0,
1380 struct nfs_pgio_header {
1381 struct inode *inode;
1382 struct rpc_cred *cred;
1383 struct list_head pages;
1384 struct nfs_page *req;
1385 struct nfs_writeverf verf; /* Used for writes */
1386 struct pnfs_layout_segment *lseg;
1388 const struct rpc_call_ops *mds_ops;
1389 void (*release) (struct nfs_pgio_header *hdr);
1390 const struct nfs_pgio_completion_ops *completion_ops;
1391 const struct nfs_rw_ops *rw_ops;
1392 struct nfs_direct_req *dreq;
1393 void *layout_private;
1395 /* fields protected by lock */
1397 int error; /* merge with pnfs_error */
1398 unsigned long good_bytes; /* boundary of good data */
1399 unsigned long flags;
1404 struct rpc_task task;
1405 struct nfs_fattr fattr;
1406 struct nfs_pgio_args args; /* argument struct */
1407 struct nfs_pgio_res res; /* result struct */
1408 unsigned long timestamp; /* For lease renewal */
1409 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1410 __u64 mds_offset; /* Filelayout dense stripe */
1411 struct nfs_page_array page_array;
1412 struct nfs_client *ds_clp; /* pNFS data server */
1413 int ds_commit_idx; /* ds index if ds_clp is set */
1414 int pgio_mirror_idx;/* mirror index in pgio layer */
1417 struct nfs_mds_commit_info {
1419 unsigned long ncommit;
1420 struct list_head list;
1423 struct nfs_commit_data;
1425 struct nfs_commit_completion_ops {
1426 void (*error_cleanup) (struct nfs_inode *nfsi);
1427 void (*completion) (struct nfs_commit_data *data);
1430 struct nfs_commit_info {
1431 spinlock_t *lock; /* inode->i_lock */
1432 struct nfs_mds_commit_info *mds;
1433 struct pnfs_ds_commit_info *ds;
1434 struct nfs_direct_req *dreq; /* O_DIRECT request */
1435 const struct nfs_commit_completion_ops *completion_ops;
1438 struct nfs_commit_data {
1439 struct rpc_task task;
1440 struct inode *inode;
1441 struct rpc_cred *cred;
1442 struct nfs_fattr fattr;
1443 struct nfs_writeverf verf;
1444 struct list_head pages; /* Coalesced requests we wish to flush */
1445 struct list_head list; /* lists of struct nfs_write_data */
1446 struct nfs_direct_req *dreq; /* O_DIRECT request */
1447 struct nfs_commitargs args; /* argument struct */
1448 struct nfs_commitres res; /* result struct */
1449 struct nfs_open_context *context;
1450 struct pnfs_layout_segment *lseg;
1451 struct nfs_client *ds_clp; /* pNFS data server */
1452 int ds_commit_index;
1454 const struct rpc_call_ops *mds_ops;
1455 const struct nfs_commit_completion_ops *completion_ops;
1456 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1459 struct nfs_pgio_completion_ops {
1460 void (*error_cleanup)(struct list_head *head);
1461 void (*init_hdr)(struct nfs_pgio_header *hdr);
1462 void (*completion)(struct nfs_pgio_header *hdr);
1465 struct nfs_unlinkdata {
1466 struct hlist_node list;
1467 struct nfs_removeargs args;
1468 struct nfs_removeres res;
1470 struct rpc_cred *cred;
1471 struct nfs_fattr dir_attr;
1475 struct nfs_renamedata {
1476 struct nfs_renameargs args;
1477 struct nfs_renameres res;
1478 struct rpc_cred *cred;
1479 struct inode *old_dir;
1480 struct dentry *old_dentry;
1481 struct nfs_fattr old_fattr;
1482 struct inode *new_dir;
1483 struct dentry *new_dentry;
1484 struct nfs_fattr new_fattr;
1485 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1489 struct nfs_access_entry;
1492 struct nfs_subversion;
1493 struct nfs_mount_info;
1494 struct nfs_client_initdata;
1495 struct nfs_pageio_descriptor;
1498 * RPC procedure vector for NFSv2/NFSv3 demuxing
1500 struct nfs_rpc_ops {
1501 u32 version; /* Protocol version */
1502 const struct dentry_operations *dentry_ops;
1503 const struct inode_operations *dir_inode_ops;
1504 const struct inode_operations *file_inode_ops;
1505 const struct file_operations *file_ops;
1507 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1508 struct nfs_fsinfo *);
1509 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1510 struct nfs_fh *, struct nfs_fattr *);
1511 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1512 struct nfs_subversion *);
1513 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1514 struct nfs_fattr *, struct nfs4_label *);
1515 int (*setattr) (struct dentry *, struct nfs_fattr *,
1517 int (*lookup) (struct inode *, struct qstr *,
1518 struct nfs_fh *, struct nfs_fattr *,
1519 struct nfs4_label *);
1520 int (*access) (struct inode *, struct nfs_access_entry *);
1521 int (*readlink)(struct inode *, struct page *, unsigned int,
1523 int (*create) (struct inode *, struct dentry *,
1524 struct iattr *, int);
1525 int (*remove) (struct inode *, struct qstr *);
1526 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1527 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1528 int (*unlink_done) (struct rpc_task *, struct inode *);
1529 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1530 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1531 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1532 int (*link) (struct inode *, struct inode *, struct qstr *);
1533 int (*symlink) (struct inode *, struct dentry *, struct page *,
1534 unsigned int, struct iattr *);
1535 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1536 int (*rmdir) (struct inode *, struct qstr *);
1537 int (*readdir) (struct dentry *, struct rpc_cred *,
1538 u64, struct page **, unsigned int, int);
1539 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1541 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1542 struct nfs_fsstat *);
1543 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1544 struct nfs_fsinfo *);
1545 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1546 struct nfs_pathconf *);
1547 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1548 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1549 int (*pgio_rpc_prepare)(struct rpc_task *,
1550 struct nfs_pgio_header *);
1551 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1552 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1553 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1554 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1555 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1556 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1557 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1558 int (*lock)(struct file *, int, struct file_lock *);
1559 int (*lock_check_bounds)(const struct file_lock *);
1560 void (*clear_acl_cache)(struct inode *);
1561 void (*close_context)(struct nfs_open_context *ctx, int);
1562 struct inode * (*open_context) (struct inode *dir,
1563 struct nfs_open_context *ctx,
1565 struct iattr *iattr,
1567 int (*have_delegation)(struct inode *, fmode_t);
1568 int (*return_delegation)(struct inode *);
1569 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1571 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1573 void (*free_client) (struct nfs_client *);
1574 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1575 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1576 struct nfs_fattr *, rpc_authflavor_t);
1580 * NFS_CALL(getattr, inode, (fattr));
1582 * NFS_PROTO(inode)->getattr(fattr);
1584 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1587 * Function vectors etc. for the NFS client
1589 extern const struct nfs_rpc_ops nfs_v2_clientops;
1590 extern const struct nfs_rpc_ops nfs_v3_clientops;
1591 extern const struct nfs_rpc_ops nfs_v4_clientops;
1592 extern const struct rpc_version nfs_version2;
1593 extern const struct rpc_version nfs_version3;
1594 extern const struct rpc_version nfs_version4;
1596 extern const struct rpc_version nfsacl_version3;
1597 extern const struct rpc_program nfsacl_program;