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 int sr_status; /* sequence operation status */
199 u32 sr_highest_slotid;
200 u32 sr_target_highest_slotid;
203 struct nfs4_get_lease_time_args {
204 struct nfs4_sequence_args la_seq_args;
207 struct nfs4_get_lease_time_res {
208 struct nfs_fsinfo *lr_fsinfo;
209 struct nfs4_sequence_res lr_seq_res;
212 #define PNFS_LAYOUT_MAXSIZE 4096
214 struct nfs4_layoutdriver_data {
220 struct pnfs_layout_range {
226 struct nfs4_layoutget_args {
228 struct pnfs_layout_range range;
232 struct nfs_open_context *ctx;
233 struct nfs4_sequence_args seq_args;
234 nfs4_stateid stateid;
235 struct nfs4_layoutdriver_data layout;
238 struct nfs4_layoutget_res {
239 __u32 return_on_close;
240 struct pnfs_layout_range range;
242 nfs4_stateid stateid;
243 struct nfs4_sequence_res seq_res;
244 struct nfs4_layoutdriver_data *layoutp;
247 struct nfs4_layoutget {
248 struct nfs4_layoutget_args args;
249 struct nfs4_layoutget_res res;
253 struct nfs4_getdevicelist_args {
254 const struct nfs_fh *fh;
256 struct nfs4_sequence_args seq_args;
259 struct nfs4_getdevicelist_res {
260 struct pnfs_devicelist *devlist;
261 struct nfs4_sequence_res seq_res;
264 struct nfs4_getdeviceinfo_args {
265 struct pnfs_device *pdev;
266 struct nfs4_sequence_args seq_args;
269 struct nfs4_getdeviceinfo_res {
270 struct pnfs_device *pdev;
271 struct nfs4_sequence_res seq_res;
274 struct nfs4_layoutcommit_args {
275 nfs4_stateid stateid;
276 __u64 lastbytewritten;
279 struct nfs4_sequence_args seq_args;
282 struct nfs4_layoutcommit_res {
283 struct nfs_fattr *fattr;
284 const struct nfs_server *server;
285 struct nfs4_sequence_res seq_res;
289 struct nfs4_layoutcommit_data {
290 struct rpc_task task;
291 struct nfs_fattr fattr;
292 struct list_head lseg_list;
293 struct rpc_cred *cred;
294 struct nfs4_layoutcommit_args args;
295 struct nfs4_layoutcommit_res res;
298 struct nfs4_layoutreturn_args {
299 struct pnfs_layout_hdr *layout;
301 nfs4_stateid stateid;
303 struct nfs4_sequence_args seq_args;
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;
320 struct stateowner_id {
326 * Arguments to the open call.
328 struct nfs_openargs {
329 const struct nfs_fh * fh;
330 struct nfs_seqid * seqid;
335 struct stateowner_id id;
338 struct iattr * attrs; /* UNCHECKED, GUARDED */
339 nfs4_verifier verifier; /* EXCLUSIVE */
341 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
342 fmode_t delegation_type; /* CLAIM_PREVIOUS */
344 const struct qstr * name;
345 const struct nfs_server *server; /* Needed for ID mapping */
347 const u32 * open_bitmap;
349 struct nfs4_sequence_args seq_args;
353 nfs4_stateid stateid;
355 struct nfs4_change_info cinfo;
357 struct nfs_fattr * f_attr;
358 struct nfs_seqid * seqid;
359 const struct nfs_server *server;
360 fmode_t delegation_type;
361 nfs4_stateid delegation;
364 __u32 attrset[NFS4_BITMAP_SIZE];
365 struct nfs4_string *owner;
366 struct nfs4_string *group_owner;
367 struct nfs4_sequence_res seq_res;
368 __u32 access_request;
369 __u32 access_supported;
374 * Arguments to the open_confirm call.
376 struct nfs_open_confirmargs {
377 const struct nfs_fh * fh;
378 nfs4_stateid * stateid;
379 struct nfs_seqid * seqid;
382 struct nfs_open_confirmres {
383 nfs4_stateid stateid;
384 struct nfs_seqid * seqid;
388 * Arguments to the close call.
390 struct nfs_closeargs {
392 nfs4_stateid * stateid;
393 struct nfs_seqid * seqid;
396 struct nfs4_sequence_args seq_args;
399 struct nfs_closeres {
400 nfs4_stateid stateid;
401 struct nfs_fattr * fattr;
402 struct nfs_seqid * seqid;
403 const struct nfs_server *server;
404 struct nfs4_sequence_res seq_res;
407 * * Arguments to the lock,lockt, and locku call.
415 struct nfs_lock_args {
417 struct file_lock * fl;
418 struct nfs_seqid * lock_seqid;
419 nfs4_stateid * lock_stateid;
420 struct nfs_seqid * open_seqid;
421 nfs4_stateid * open_stateid;
422 struct nfs_lowner lock_owner;
423 unsigned char block : 1;
424 unsigned char reclaim : 1;
425 unsigned char new_lock_owner : 1;
426 struct nfs4_sequence_args seq_args;
429 struct nfs_lock_res {
430 nfs4_stateid stateid;
431 struct nfs_seqid * lock_seqid;
432 struct nfs_seqid * open_seqid;
433 struct nfs4_sequence_res seq_res;
436 struct nfs_locku_args {
438 struct file_lock * fl;
439 struct nfs_seqid * seqid;
440 nfs4_stateid * stateid;
441 struct nfs4_sequence_args seq_args;
444 struct nfs_locku_res {
445 nfs4_stateid stateid;
446 struct nfs_seqid * seqid;
447 struct nfs4_sequence_res seq_res;
450 struct nfs_lockt_args {
452 struct file_lock * fl;
453 struct nfs_lowner lock_owner;
454 struct nfs4_sequence_args seq_args;
457 struct nfs_lockt_res {
458 struct file_lock * denied; /* LOCK, LOCKT failed */
459 struct nfs4_sequence_res seq_res;
462 struct nfs_release_lockowner_args {
463 struct nfs_lowner lock_owner;
466 struct nfs4_delegreturnargs {
467 const struct nfs_fh *fhandle;
468 const nfs4_stateid *stateid;
470 struct nfs4_sequence_args seq_args;
473 struct nfs4_delegreturnres {
474 struct nfs_fattr * fattr;
475 const struct nfs_server *server;
476 struct nfs4_sequence_res seq_res;
480 * Arguments to the read call.
482 struct nfs_readargs {
484 struct nfs_open_context *context;
485 struct nfs_lock_context *lock_context;
489 struct page ** pages;
490 struct nfs4_sequence_args seq_args;
494 struct nfs_fattr * fattr;
497 struct nfs4_sequence_res seq_res;
501 * Arguments to the write call.
503 struct nfs_writeargs {
505 struct nfs_open_context *context;
506 struct nfs_lock_context *lock_context;
509 enum nfs3_stable_how stable;
511 struct page ** pages;
513 struct nfs4_sequence_args seq_args;
516 struct nfs_write_verifier {
520 struct nfs_writeverf {
521 struct nfs_write_verifier verifier;
522 enum nfs3_stable_how committed;
525 struct nfs_writeres {
526 struct nfs_fattr * fattr;
527 struct nfs_writeverf * verf;
529 const struct nfs_server *server;
530 struct nfs4_sequence_res seq_res;
534 * Arguments to the commit call.
536 struct nfs_commitargs {
541 struct nfs4_sequence_args seq_args;
544 struct nfs_commitres {
545 struct nfs_fattr *fattr;
546 struct nfs_writeverf *verf;
547 const struct nfs_server *server;
548 struct nfs4_sequence_res seq_res;
552 * Common arguments to the unlink call
554 struct nfs_removeargs {
555 const struct nfs_fh *fh;
557 struct nfs4_sequence_args seq_args;
560 struct nfs_removeres {
561 const struct nfs_server *server;
562 struct nfs_fattr *dir_attr;
563 struct nfs4_change_info cinfo;
564 struct nfs4_sequence_res seq_res;
568 * Common arguments to the rename call
570 struct nfs_renameargs {
571 const struct nfs_fh *old_dir;
572 const struct nfs_fh *new_dir;
573 const struct qstr *old_name;
574 const struct qstr *new_name;
575 struct nfs4_sequence_args seq_args;
578 struct nfs_renameres {
579 const struct nfs_server *server;
580 struct nfs4_change_info old_cinfo;
581 struct nfs_fattr *old_fattr;
582 struct nfs4_change_info new_cinfo;
583 struct nfs_fattr *new_fattr;
584 struct nfs4_sequence_res seq_res;
588 * Argument struct for decode_entry function
598 struct nfs_fattr * fattr;
599 unsigned char d_type;
600 struct nfs_server * server;
604 * The following types are for NFSv2 only.
606 struct nfs_sattrargs {
608 struct iattr * sattr;
611 struct nfs_diropargs {
617 struct nfs_createargs {
621 struct iattr * sattr;
624 struct nfs_setattrargs {
626 nfs4_stateid stateid;
628 const struct nfs_server * server; /* Needed for name mapping */
630 struct nfs4_sequence_args seq_args;
633 struct nfs_setaclargs {
636 unsigned int acl_pgbase;
637 struct page ** acl_pages;
638 struct nfs4_sequence_args seq_args;
641 struct nfs_setaclres {
642 struct nfs4_sequence_res seq_res;
645 struct nfs_getaclargs {
648 unsigned int acl_pgbase;
649 struct page ** acl_pages;
650 struct nfs4_sequence_args seq_args;
653 /* getxattr ACL interface flags */
654 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
655 struct nfs_getaclres {
657 size_t acl_data_offset;
659 struct page * acl_scratch;
660 struct nfs4_sequence_res seq_res;
663 struct nfs_setattrres {
664 struct nfs_fattr * fattr;
665 const struct nfs_server * server;
666 struct nfs4_sequence_res seq_res;
669 struct nfs_linkargs {
670 struct nfs_fh * fromfh;
671 struct nfs_fh * tofh;
676 struct nfs_symlinkargs {
677 struct nfs_fh * fromfh;
678 const char * fromname;
679 unsigned int fromlen;
680 struct page ** pages;
681 unsigned int pathlen;
682 struct iattr * sattr;
685 struct nfs_readdirargs {
689 struct page ** pages;
692 struct nfs3_getaclargs {
695 struct page ** pages;
698 struct nfs3_setaclargs {
699 struct inode * inode;
701 struct posix_acl * acl_access;
702 struct posix_acl * acl_default;
705 struct page ** pages;
710 struct nfs_fattr * fattr;
713 struct nfs_readlinkargs {
717 struct page ** pages;
720 struct nfs3_sattrargs {
722 struct iattr * sattr;
724 struct timespec guardtime;
727 struct nfs3_diropargs {
733 struct nfs3_accessargs {
738 struct nfs3_createargs {
742 struct iattr * sattr;
743 enum nfs3_createmode createmode;
747 struct nfs3_mkdirargs {
751 struct iattr * sattr;
754 struct nfs3_symlinkargs {
755 struct nfs_fh * fromfh;
756 const char * fromname;
757 unsigned int fromlen;
758 struct page ** pages;
759 unsigned int pathlen;
760 struct iattr * sattr;
763 struct nfs3_mknodargs {
767 enum nfs3_ftype type;
768 struct iattr * sattr;
772 struct nfs3_linkargs {
773 struct nfs_fh * fromfh;
774 struct nfs_fh * tofh;
779 struct nfs3_readdirargs {
785 struct page ** pages;
788 struct nfs3_diropres {
789 struct nfs_fattr * dir_attr;
791 struct nfs_fattr * fattr;
794 struct nfs3_accessres {
795 struct nfs_fattr * fattr;
799 struct nfs3_readlinkargs {
803 struct page ** pages;
806 struct nfs3_linkres {
807 struct nfs_fattr * dir_attr;
808 struct nfs_fattr * fattr;
811 struct nfs3_readdirres {
812 struct nfs_fattr * dir_attr;
817 struct nfs3_getaclres {
818 struct nfs_fattr * fattr;
820 unsigned int acl_access_count;
821 unsigned int acl_default_count;
822 struct posix_acl * acl_access;
823 struct posix_acl * acl_default;
826 #if IS_ENABLED(CONFIG_NFS_V4)
828 typedef u64 clientid4;
830 struct nfs4_accessargs {
831 const struct nfs_fh * fh;
834 struct nfs4_sequence_args seq_args;
837 struct nfs4_accessres {
838 const struct nfs_server * server;
839 struct nfs_fattr * fattr;
842 struct nfs4_sequence_res seq_res;
845 struct nfs4_create_arg {
849 struct page ** pages;
851 } symlink; /* NF4LNK */
855 } device; /* NF4BLK, NF4CHR */
857 const struct qstr * name;
858 const struct nfs_server * server;
859 const struct iattr * attrs;
860 const struct nfs_fh * dir_fh;
862 struct nfs4_sequence_args seq_args;
865 struct nfs4_create_res {
866 const struct nfs_server * server;
868 struct nfs_fattr * fattr;
869 struct nfs4_change_info dir_cinfo;
870 struct nfs4_sequence_res seq_res;
873 struct nfs4_fsinfo_arg {
874 const struct nfs_fh * fh;
876 struct nfs4_sequence_args seq_args;
879 struct nfs4_fsinfo_res {
880 struct nfs_fsinfo *fsinfo;
881 struct nfs4_sequence_res seq_res;
884 struct nfs4_getattr_arg {
885 const struct nfs_fh * fh;
887 struct nfs4_sequence_args seq_args;
890 struct nfs4_getattr_res {
891 const struct nfs_server * server;
892 struct nfs_fattr * fattr;
893 struct nfs4_sequence_res seq_res;
896 struct nfs4_link_arg {
897 const struct nfs_fh * fh;
898 const struct nfs_fh * dir_fh;
899 const struct qstr * name;
901 struct nfs4_sequence_args seq_args;
904 struct nfs4_link_res {
905 const struct nfs_server * server;
906 struct nfs_fattr * fattr;
907 struct nfs4_change_info cinfo;
908 struct nfs_fattr * dir_attr;
909 struct nfs4_sequence_res seq_res;
913 struct nfs4_lookup_arg {
914 const struct nfs_fh * dir_fh;
915 const struct qstr * name;
917 struct nfs4_sequence_args seq_args;
920 struct nfs4_lookup_res {
921 const struct nfs_server * server;
922 struct nfs_fattr * fattr;
924 struct nfs4_sequence_res seq_res;
927 struct nfs4_lookup_root_arg {
929 struct nfs4_sequence_args seq_args;
932 struct nfs4_pathconf_arg {
933 const struct nfs_fh * fh;
935 struct nfs4_sequence_args seq_args;
938 struct nfs4_pathconf_res {
939 struct nfs_pathconf *pathconf;
940 struct nfs4_sequence_res seq_res;
943 struct nfs4_readdir_arg {
944 const struct nfs_fh * fh;
946 nfs4_verifier verifier;
948 struct page ** pages; /* zero-copy data */
949 unsigned int pgbase; /* zero-copy data */
952 struct nfs4_sequence_args seq_args;
955 struct nfs4_readdir_res {
956 nfs4_verifier verifier;
958 struct nfs4_sequence_res seq_res;
961 struct nfs4_readlink {
962 const struct nfs_fh * fh;
964 unsigned int pglen; /* zero-copy data */
965 struct page ** pages; /* zero-copy data */
966 struct nfs4_sequence_args seq_args;
969 struct nfs4_readlink_res {
970 struct nfs4_sequence_res seq_res;
973 #define NFS4_SETCLIENTID_NAMELEN (127)
974 struct nfs4_setclientid {
975 const nfs4_verifier * sc_verifier;
976 unsigned int sc_name_len;
977 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
979 unsigned int sc_netid_len;
980 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
981 unsigned int sc_uaddr_len;
982 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
986 struct nfs4_setclientid_res {
988 nfs4_verifier confirm;
991 struct nfs4_statfs_arg {
992 const struct nfs_fh * fh;
994 struct nfs4_sequence_args seq_args;
997 struct nfs4_statfs_res {
998 struct nfs_fsstat *fsstat;
999 struct nfs4_sequence_res seq_res;
1002 struct nfs4_server_caps_arg {
1003 struct nfs_fh *fhandle;
1004 struct nfs4_sequence_args seq_args;
1007 struct nfs4_server_caps_res {
1008 u32 attr_bitmask[3];
1013 struct nfs4_sequence_res seq_res;
1016 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1017 struct nfs4_pathname {
1018 unsigned int ncomponents;
1019 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1022 #define NFS4_FS_LOCATION_MAXSERVERS 10
1023 struct nfs4_fs_location {
1024 unsigned int nservers;
1025 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1026 struct nfs4_pathname rootpath;
1029 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1030 struct nfs4_fs_locations {
1031 struct nfs_fattr fattr;
1032 const struct nfs_server *server;
1033 struct nfs4_pathname fs_path;
1035 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1038 struct nfs4_fs_locations_arg {
1039 const struct nfs_fh *dir_fh;
1040 const struct qstr *name;
1043 struct nfs4_sequence_args seq_args;
1046 struct nfs4_fs_locations_res {
1047 struct nfs4_fs_locations *fs_locations;
1048 struct nfs4_sequence_res seq_res;
1051 struct nfs4_secinfo_oid {
1053 char data[GSS_OID_MAX_LEN];
1056 struct nfs4_secinfo_gss {
1057 struct nfs4_secinfo_oid sec_oid4;
1059 unsigned int service;
1062 struct nfs4_secinfo_flavor {
1063 unsigned int flavor;
1064 struct nfs4_secinfo_gss gss;
1067 struct nfs4_secinfo_flavors {
1068 unsigned int num_flavors;
1069 struct nfs4_secinfo_flavor flavors[0];
1072 struct nfs4_secinfo_arg {
1073 const struct nfs_fh *dir_fh;
1074 const struct qstr *name;
1075 struct nfs4_sequence_args seq_args;
1078 struct nfs4_secinfo_res {
1079 struct nfs4_secinfo_flavors *flavors;
1080 struct nfs4_sequence_res seq_res;
1083 #endif /* CONFIG_NFS_V4 */
1090 #ifdef CONFIG_NFS_V4_1
1092 struct pnfs_commit_bucket {
1093 struct list_head written;
1094 struct list_head committing;
1095 struct pnfs_layout_segment *wlseg;
1096 struct pnfs_layout_segment *clseg;
1099 struct pnfs_ds_commit_info {
1103 struct pnfs_commit_bucket *buckets;
1106 #define NFS4_EXCHANGE_ID_LEN (48)
1107 struct nfs41_exchange_id_args {
1108 struct nfs_client *client;
1109 nfs4_verifier *verifier;
1110 unsigned int id_len;
1111 char id[NFS4_EXCHANGE_ID_LEN];
1115 struct nfs41_server_owner {
1117 uint32_t major_id_sz;
1118 char major_id[NFS4_OPAQUE_LIMIT];
1121 struct nfs41_server_scope {
1122 uint32_t server_scope_sz;
1123 char server_scope[NFS4_OPAQUE_LIMIT];
1126 struct nfs41_impl_id {
1127 char domain[NFS4_OPAQUE_LIMIT + 1];
1128 char name[NFS4_OPAQUE_LIMIT + 1];
1129 struct nfstime4 date;
1132 struct nfs41_bind_conn_to_session_res {
1133 struct nfs4_session *session;
1135 bool use_conn_in_rdma_mode;
1138 struct nfs41_exchange_id_res {
1142 struct nfs41_server_owner *server_owner;
1143 struct nfs41_server_scope *server_scope;
1144 struct nfs41_impl_id *impl_id;
1147 struct nfs41_create_session_args {
1148 struct nfs_client *client;
1150 uint32_t cb_program;
1151 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1152 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1155 struct nfs41_create_session_res {
1156 struct nfs_client *client;
1159 struct nfs41_reclaim_complete_args {
1160 /* In the future extend to include curr_fh for use with migration */
1161 unsigned char one_fs:1;
1162 struct nfs4_sequence_args seq_args;
1165 struct nfs41_reclaim_complete_res {
1166 struct nfs4_sequence_res seq_res;
1169 #define SECINFO_STYLE_CURRENT_FH 0
1170 #define SECINFO_STYLE_PARENT 1
1171 struct nfs41_secinfo_no_name_args {
1173 struct nfs4_sequence_args seq_args;
1176 struct nfs41_test_stateid_args {
1177 nfs4_stateid *stateid;
1178 struct nfs4_sequence_args seq_args;
1181 struct nfs41_test_stateid_res {
1182 unsigned int status;
1183 struct nfs4_sequence_res seq_res;
1186 struct nfs41_free_stateid_args {
1187 nfs4_stateid *stateid;
1188 struct nfs4_sequence_args seq_args;
1191 struct nfs41_free_stateid_res {
1192 unsigned int status;
1193 struct nfs4_sequence_res seq_res;
1198 struct pnfs_ds_commit_info {
1201 #endif /* CONFIG_NFS_V4_1 */
1205 #define NFS_PAGEVEC_SIZE (8U)
1207 struct nfs_page_array {
1208 struct page **pagevec;
1209 unsigned int npages; /* Max length of pagevec */
1210 struct page *page_array[NFS_PAGEVEC_SIZE];
1213 struct nfs_read_data {
1214 struct nfs_pgio_header *header;
1215 struct list_head list;
1216 struct rpc_task task;
1217 struct nfs_fattr fattr; /* fattr storage */
1218 struct nfs_readargs args;
1219 struct nfs_readres res;
1220 unsigned long timestamp; /* For lease renewal */
1221 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1223 struct nfs_page_array pages;
1224 struct nfs_client *ds_clp; /* pNFS data server */
1227 /* used as flag bits in nfs_pgio_header */
1229 NFS_IOHDR_ERROR = 0,
1232 NFS_IOHDR_NEED_COMMIT,
1233 NFS_IOHDR_NEED_RESCHED,
1236 struct nfs_pgio_header {
1237 struct inode *inode;
1238 struct rpc_cred *cred;
1239 struct list_head pages;
1240 struct list_head rpc_list;
1242 struct nfs_page *req;
1243 struct nfs_writeverf *verf;
1244 struct pnfs_layout_segment *lseg;
1246 const struct rpc_call_ops *mds_ops;
1247 void (*release) (struct nfs_pgio_header *hdr);
1248 const struct nfs_pgio_completion_ops *completion_ops;
1249 struct nfs_direct_req *dreq;
1250 void *layout_private;
1252 /* fields protected by lock */
1254 int error; /* merge with pnfs_error */
1255 unsigned long good_bytes; /* boundary of good data */
1256 unsigned long flags;
1259 struct nfs_read_header {
1260 struct nfs_pgio_header header;
1261 struct nfs_read_data rpc_data;
1264 struct nfs_write_data {
1265 struct nfs_pgio_header *header;
1266 struct list_head list;
1267 struct rpc_task task;
1268 struct nfs_fattr fattr;
1269 struct nfs_writeverf verf;
1270 struct nfs_writeargs args; /* argument struct */
1271 struct nfs_writeres res; /* result struct */
1272 unsigned long timestamp; /* For lease renewal */
1273 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1274 __u64 mds_offset; /* Filelayout dense stripe */
1275 struct nfs_page_array pages;
1276 struct nfs_client *ds_clp; /* pNFS data server */
1279 struct nfs_write_header {
1280 struct nfs_pgio_header header;
1281 struct nfs_write_data rpc_data;
1282 struct nfs_writeverf verf;
1285 struct nfs_mds_commit_info {
1287 unsigned long ncommit;
1288 struct list_head list;
1291 struct nfs_commit_data;
1293 struct nfs_commit_completion_ops {
1294 void (*error_cleanup) (struct nfs_inode *nfsi);
1295 void (*completion) (struct nfs_commit_data *data);
1298 struct nfs_commit_info {
1300 struct nfs_mds_commit_info *mds;
1301 struct pnfs_ds_commit_info *ds;
1302 struct nfs_direct_req *dreq; /* O_DIRECT request */
1303 const struct nfs_commit_completion_ops *completion_ops;
1306 struct nfs_commit_data {
1307 struct rpc_task task;
1308 struct inode *inode;
1309 struct rpc_cred *cred;
1310 struct nfs_fattr fattr;
1311 struct nfs_writeverf verf;
1312 struct list_head pages; /* Coalesced requests we wish to flush */
1313 struct list_head list; /* lists of struct nfs_write_data */
1314 struct nfs_direct_req *dreq; /* O_DIRECT request */
1315 struct nfs_commitargs args; /* argument struct */
1316 struct nfs_commitres res; /* result struct */
1317 struct nfs_open_context *context;
1318 struct pnfs_layout_segment *lseg;
1319 struct nfs_client *ds_clp; /* pNFS data server */
1320 int ds_commit_index;
1321 const struct rpc_call_ops *mds_ops;
1322 const struct nfs_commit_completion_ops *completion_ops;
1323 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1326 struct nfs_pgio_completion_ops {
1327 void (*error_cleanup)(struct list_head *head);
1328 void (*init_hdr)(struct nfs_pgio_header *hdr);
1329 void (*completion)(struct nfs_pgio_header *hdr);
1332 struct nfs_unlinkdata {
1333 struct hlist_node list;
1334 struct nfs_removeargs args;
1335 struct nfs_removeres res;
1337 struct rpc_cred *cred;
1338 struct nfs_fattr dir_attr;
1341 struct nfs_renamedata {
1342 struct nfs_renameargs args;
1343 struct nfs_renameres res;
1344 struct rpc_cred *cred;
1345 struct inode *old_dir;
1346 struct dentry *old_dentry;
1347 struct nfs_fattr old_fattr;
1348 struct inode *new_dir;
1349 struct dentry *new_dentry;
1350 struct nfs_fattr new_fattr;
1353 struct nfs_access_entry;
1356 struct nfs_subversion;
1357 struct nfs_mount_info;
1358 struct nfs_client_initdata;
1359 struct nfs_pageio_descriptor;
1362 * RPC procedure vector for NFSv2/NFSv3 demuxing
1364 struct nfs_rpc_ops {
1365 u32 version; /* Protocol version */
1366 const struct dentry_operations *dentry_ops;
1367 const struct inode_operations *dir_inode_ops;
1368 const struct inode_operations *file_inode_ops;
1369 const struct file_operations *file_ops;
1371 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1372 struct nfs_fsinfo *);
1373 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1374 struct nfs_fh *, struct nfs_fattr *);
1375 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1376 struct nfs_subversion *);
1377 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1378 struct nfs_fattr *);
1379 int (*setattr) (struct dentry *, struct nfs_fattr *,
1381 int (*lookup) (struct inode *, struct qstr *,
1382 struct nfs_fh *, struct nfs_fattr *);
1383 int (*access) (struct inode *, struct nfs_access_entry *);
1384 int (*readlink)(struct inode *, struct page *, unsigned int,
1386 int (*create) (struct inode *, struct dentry *,
1387 struct iattr *, int);
1388 int (*remove) (struct inode *, struct qstr *);
1389 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1390 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1391 int (*unlink_done) (struct rpc_task *, struct inode *);
1392 int (*rename) (struct inode *, struct qstr *,
1393 struct inode *, struct qstr *);
1394 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1395 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1396 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1397 int (*link) (struct inode *, struct inode *, struct qstr *);
1398 int (*symlink) (struct inode *, struct dentry *, struct page *,
1399 unsigned int, struct iattr *);
1400 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1401 int (*rmdir) (struct inode *, struct qstr *);
1402 int (*readdir) (struct dentry *, struct rpc_cred *,
1403 u64, struct page **, unsigned int, int);
1404 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1406 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1407 struct nfs_fsstat *);
1408 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1409 struct nfs_fsinfo *);
1410 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1411 struct nfs_pathconf *);
1412 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1413 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1414 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1415 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1416 const struct nfs_pgio_completion_ops *);
1417 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1418 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1419 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1420 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1421 const struct nfs_pgio_completion_ops *);
1422 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1423 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1424 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1425 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1426 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1427 int (*lock)(struct file *, int, struct file_lock *);
1428 int (*lock_check_bounds)(const struct file_lock *);
1429 void (*clear_acl_cache)(struct inode *);
1430 void (*close_context)(struct nfs_open_context *ctx, int);
1431 struct inode * (*open_context) (struct inode *dir,
1432 struct nfs_open_context *ctx,
1434 struct iattr *iattr);
1435 int (*have_delegation)(struct inode *, fmode_t);
1436 int (*return_delegation)(struct inode *);
1437 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1439 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1440 const char *, rpc_authflavor_t);
1441 void (*free_client) (struct nfs_client *);
1442 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1443 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1444 struct nfs_fattr *, rpc_authflavor_t);
1448 * NFS_CALL(getattr, inode, (fattr));
1450 * NFS_PROTO(inode)->getattr(fattr);
1452 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1455 * Function vectors etc. for the NFS client
1457 extern const struct nfs_rpc_ops nfs_v2_clientops;
1458 extern const struct nfs_rpc_ops nfs_v3_clientops;
1459 extern const struct nfs_rpc_ops nfs_v4_clientops;
1460 extern const struct rpc_version nfs_version2;
1461 extern const struct rpc_version nfs_version3;
1462 extern const struct rpc_version nfs_version4;
1464 extern const struct rpc_version nfsacl_version3;
1465 extern const struct rpc_program nfsacl_program;