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, struct nfs_open_context *);
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;