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 */
190 struct nfs4_slot_table *table;
191 unsigned long generation;
192 unsigned long renewal_time;
197 struct nfs4_sequence_args {
198 struct nfs4_slot *sa_slot;
202 struct nfs4_sequence_res {
203 struct nfs4_slot *sr_slot; /* slot used to send request */
204 int sr_status; /* sequence operation status */
206 u32 sr_highest_slotid;
207 u32 sr_target_highest_slotid;
210 struct nfs4_get_lease_time_args {
211 struct nfs4_sequence_args la_seq_args;
214 struct nfs4_get_lease_time_res {
215 struct nfs_fsinfo *lr_fsinfo;
216 struct nfs4_sequence_res lr_seq_res;
219 #define PNFS_LAYOUT_MAXSIZE 4096
221 struct nfs4_layoutdriver_data {
227 struct pnfs_layout_range {
233 struct nfs4_layoutget_args {
235 struct pnfs_layout_range range;
239 struct nfs_open_context *ctx;
240 struct nfs4_sequence_args seq_args;
241 nfs4_stateid stateid;
242 struct nfs4_layoutdriver_data layout;
245 struct nfs4_layoutget_res {
246 __u32 return_on_close;
247 struct pnfs_layout_range range;
249 nfs4_stateid stateid;
250 struct nfs4_sequence_res seq_res;
251 struct nfs4_layoutdriver_data *layoutp;
254 struct nfs4_layoutget {
255 struct nfs4_layoutget_args args;
256 struct nfs4_layoutget_res res;
260 struct nfs4_getdevicelist_args {
261 const struct nfs_fh *fh;
263 struct nfs4_sequence_args seq_args;
266 struct nfs4_getdevicelist_res {
267 struct pnfs_devicelist *devlist;
268 struct nfs4_sequence_res seq_res;
271 struct nfs4_getdeviceinfo_args {
272 struct pnfs_device *pdev;
273 struct nfs4_sequence_args seq_args;
276 struct nfs4_getdeviceinfo_res {
277 struct pnfs_device *pdev;
278 struct nfs4_sequence_res seq_res;
281 struct nfs4_layoutcommit_args {
282 nfs4_stateid stateid;
283 __u64 lastbytewritten;
286 struct nfs4_sequence_args seq_args;
289 struct nfs4_layoutcommit_res {
290 struct nfs_fattr *fattr;
291 const struct nfs_server *server;
292 struct nfs4_sequence_res seq_res;
296 struct nfs4_layoutcommit_data {
297 struct rpc_task task;
298 struct nfs_fattr fattr;
299 struct list_head lseg_list;
300 struct rpc_cred *cred;
301 struct nfs4_layoutcommit_args args;
302 struct nfs4_layoutcommit_res res;
305 struct nfs4_layoutreturn_args {
306 struct pnfs_layout_hdr *layout;
308 nfs4_stateid stateid;
310 struct nfs4_sequence_args seq_args;
313 struct nfs4_layoutreturn_res {
314 struct nfs4_sequence_res seq_res;
316 nfs4_stateid stateid;
319 struct nfs4_layoutreturn {
320 struct nfs4_layoutreturn_args args;
321 struct nfs4_layoutreturn_res res;
322 struct rpc_cred *cred;
323 struct nfs_client *clp;
327 struct stateowner_id {
333 * Arguments to the open call.
335 struct nfs_openargs {
336 const struct nfs_fh * fh;
337 struct nfs_seqid * seqid;
342 struct stateowner_id id;
345 struct iattr * attrs; /* UNCHECKED, GUARDED */
346 nfs4_verifier verifier; /* EXCLUSIVE */
348 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
349 fmode_t delegation_type; /* CLAIM_PREVIOUS */
351 const struct qstr * name;
352 const struct nfs_server *server; /* Needed for ID mapping */
354 const u32 * open_bitmap;
356 struct nfs4_sequence_args seq_args;
360 nfs4_stateid stateid;
362 struct nfs4_change_info cinfo;
364 struct nfs_fattr * f_attr;
365 struct nfs_seqid * seqid;
366 const struct nfs_server *server;
367 fmode_t delegation_type;
368 nfs4_stateid delegation;
371 __u32 attrset[NFS4_BITMAP_SIZE];
372 struct nfs4_string *owner;
373 struct nfs4_string *group_owner;
374 struct nfs4_sequence_res seq_res;
375 __u32 access_request;
376 __u32 access_supported;
381 * Arguments to the open_confirm call.
383 struct nfs_open_confirmargs {
384 const struct nfs_fh * fh;
385 nfs4_stateid * stateid;
386 struct nfs_seqid * seqid;
389 struct nfs_open_confirmres {
390 nfs4_stateid stateid;
391 struct nfs_seqid * seqid;
395 * Arguments to the close call.
397 struct nfs_closeargs {
399 nfs4_stateid * stateid;
400 struct nfs_seqid * seqid;
403 struct nfs4_sequence_args seq_args;
406 struct nfs_closeres {
407 nfs4_stateid stateid;
408 struct nfs_fattr * fattr;
409 struct nfs_seqid * seqid;
410 const struct nfs_server *server;
411 struct nfs4_sequence_res seq_res;
414 * * Arguments to the lock,lockt, and locku call.
422 struct nfs_lock_args {
424 struct file_lock * fl;
425 struct nfs_seqid * lock_seqid;
426 nfs4_stateid * lock_stateid;
427 struct nfs_seqid * open_seqid;
428 nfs4_stateid * open_stateid;
429 struct nfs_lowner lock_owner;
430 unsigned char block : 1;
431 unsigned char reclaim : 1;
432 unsigned char new_lock_owner : 1;
433 struct nfs4_sequence_args seq_args;
436 struct nfs_lock_res {
437 nfs4_stateid stateid;
438 struct nfs_seqid * lock_seqid;
439 struct nfs_seqid * open_seqid;
440 struct nfs4_sequence_res seq_res;
443 struct nfs_locku_args {
445 struct file_lock * fl;
446 struct nfs_seqid * seqid;
447 nfs4_stateid * stateid;
448 struct nfs4_sequence_args seq_args;
451 struct nfs_locku_res {
452 nfs4_stateid stateid;
453 struct nfs_seqid * seqid;
454 struct nfs4_sequence_res seq_res;
457 struct nfs_lockt_args {
459 struct file_lock * fl;
460 struct nfs_lowner lock_owner;
461 struct nfs4_sequence_args seq_args;
464 struct nfs_lockt_res {
465 struct file_lock * denied; /* LOCK, LOCKT failed */
466 struct nfs4_sequence_res seq_res;
469 struct nfs_release_lockowner_args {
470 struct nfs_lowner lock_owner;
473 struct nfs4_delegreturnargs {
474 const struct nfs_fh *fhandle;
475 const nfs4_stateid *stateid;
477 struct nfs4_sequence_args seq_args;
480 struct nfs4_delegreturnres {
481 struct nfs_fattr * fattr;
482 const struct nfs_server *server;
483 struct nfs4_sequence_res seq_res;
487 * Arguments to the read call.
489 struct nfs_readargs {
491 struct nfs_open_context *context;
492 struct nfs_lock_context *lock_context;
496 struct page ** pages;
497 struct nfs4_sequence_args seq_args;
501 struct nfs_fattr * fattr;
504 struct nfs4_sequence_res seq_res;
508 * Arguments to the write call.
510 struct nfs_writeargs {
512 struct nfs_open_context *context;
513 struct nfs_lock_context *lock_context;
516 enum nfs3_stable_how stable;
518 struct page ** pages;
520 struct nfs4_sequence_args seq_args;
523 struct nfs_write_verifier {
527 struct nfs_writeverf {
528 struct nfs_write_verifier verifier;
529 enum nfs3_stable_how committed;
532 struct nfs_writeres {
533 struct nfs_fattr * fattr;
534 struct nfs_writeverf * verf;
536 const struct nfs_server *server;
537 struct nfs4_sequence_res seq_res;
541 * Arguments to the commit call.
543 struct nfs_commitargs {
548 struct nfs4_sequence_args seq_args;
551 struct nfs_commitres {
552 struct nfs_fattr *fattr;
553 struct nfs_writeverf *verf;
554 const struct nfs_server *server;
555 struct nfs4_sequence_res seq_res;
559 * Common arguments to the unlink call
561 struct nfs_removeargs {
562 const struct nfs_fh *fh;
564 struct nfs4_sequence_args seq_args;
567 struct nfs_removeres {
568 const struct nfs_server *server;
569 struct nfs_fattr *dir_attr;
570 struct nfs4_change_info cinfo;
571 struct nfs4_sequence_res seq_res;
575 * Common arguments to the rename call
577 struct nfs_renameargs {
578 const struct nfs_fh *old_dir;
579 const struct nfs_fh *new_dir;
580 const struct qstr *old_name;
581 const struct qstr *new_name;
582 struct nfs4_sequence_args seq_args;
585 struct nfs_renameres {
586 const struct nfs_server *server;
587 struct nfs4_change_info old_cinfo;
588 struct nfs_fattr *old_fattr;
589 struct nfs4_change_info new_cinfo;
590 struct nfs_fattr *new_fattr;
591 struct nfs4_sequence_res seq_res;
595 * Argument struct for decode_entry function
605 struct nfs_fattr * fattr;
606 unsigned char d_type;
607 struct nfs_server * server;
611 * The following types are for NFSv2 only.
613 struct nfs_sattrargs {
615 struct iattr * sattr;
618 struct nfs_diropargs {
624 struct nfs_createargs {
628 struct iattr * sattr;
631 struct nfs_setattrargs {
633 nfs4_stateid stateid;
635 const struct nfs_server * server; /* Needed for name mapping */
637 struct nfs4_sequence_args seq_args;
640 struct nfs_setaclargs {
643 unsigned int acl_pgbase;
644 struct page ** acl_pages;
645 struct nfs4_sequence_args seq_args;
648 struct nfs_setaclres {
649 struct nfs4_sequence_res seq_res;
652 struct nfs_getaclargs {
655 unsigned int acl_pgbase;
656 struct page ** acl_pages;
657 struct nfs4_sequence_args seq_args;
660 /* getxattr ACL interface flags */
661 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
662 struct nfs_getaclres {
664 size_t acl_data_offset;
666 struct page * acl_scratch;
667 struct nfs4_sequence_res seq_res;
670 struct nfs_setattrres {
671 struct nfs_fattr * fattr;
672 const struct nfs_server * server;
673 struct nfs4_sequence_res seq_res;
676 struct nfs_linkargs {
677 struct nfs_fh * fromfh;
678 struct nfs_fh * tofh;
683 struct nfs_symlinkargs {
684 struct nfs_fh * fromfh;
685 const char * fromname;
686 unsigned int fromlen;
687 struct page ** pages;
688 unsigned int pathlen;
689 struct iattr * sattr;
692 struct nfs_readdirargs {
696 struct page ** pages;
699 struct nfs3_getaclargs {
702 struct page ** pages;
705 struct nfs3_setaclargs {
706 struct inode * inode;
708 struct posix_acl * acl_access;
709 struct posix_acl * acl_default;
712 struct page ** pages;
717 struct nfs_fattr * fattr;
720 struct nfs_readlinkargs {
724 struct page ** pages;
727 struct nfs3_sattrargs {
729 struct iattr * sattr;
731 struct timespec guardtime;
734 struct nfs3_diropargs {
740 struct nfs3_accessargs {
745 struct nfs3_createargs {
749 struct iattr * sattr;
750 enum nfs3_createmode createmode;
754 struct nfs3_mkdirargs {
758 struct iattr * sattr;
761 struct nfs3_symlinkargs {
762 struct nfs_fh * fromfh;
763 const char * fromname;
764 unsigned int fromlen;
765 struct page ** pages;
766 unsigned int pathlen;
767 struct iattr * sattr;
770 struct nfs3_mknodargs {
774 enum nfs3_ftype type;
775 struct iattr * sattr;
779 struct nfs3_linkargs {
780 struct nfs_fh * fromfh;
781 struct nfs_fh * tofh;
786 struct nfs3_readdirargs {
792 struct page ** pages;
795 struct nfs3_diropres {
796 struct nfs_fattr * dir_attr;
798 struct nfs_fattr * fattr;
801 struct nfs3_accessres {
802 struct nfs_fattr * fattr;
806 struct nfs3_readlinkargs {
810 struct page ** pages;
813 struct nfs3_linkres {
814 struct nfs_fattr * dir_attr;
815 struct nfs_fattr * fattr;
818 struct nfs3_readdirres {
819 struct nfs_fattr * dir_attr;
824 struct nfs3_getaclres {
825 struct nfs_fattr * fattr;
827 unsigned int acl_access_count;
828 unsigned int acl_default_count;
829 struct posix_acl * acl_access;
830 struct posix_acl * acl_default;
833 #if IS_ENABLED(CONFIG_NFS_V4)
835 typedef u64 clientid4;
837 struct nfs4_accessargs {
838 const struct nfs_fh * fh;
841 struct nfs4_sequence_args seq_args;
844 struct nfs4_accessres {
845 const struct nfs_server * server;
846 struct nfs_fattr * fattr;
849 struct nfs4_sequence_res seq_res;
852 struct nfs4_create_arg {
856 struct page ** pages;
858 } symlink; /* NF4LNK */
862 } device; /* NF4BLK, NF4CHR */
864 const struct qstr * name;
865 const struct nfs_server * server;
866 const struct iattr * attrs;
867 const struct nfs_fh * dir_fh;
869 struct nfs4_sequence_args seq_args;
872 struct nfs4_create_res {
873 const struct nfs_server * server;
875 struct nfs_fattr * fattr;
876 struct nfs4_change_info dir_cinfo;
877 struct nfs4_sequence_res seq_res;
880 struct nfs4_fsinfo_arg {
881 const struct nfs_fh * fh;
883 struct nfs4_sequence_args seq_args;
886 struct nfs4_fsinfo_res {
887 struct nfs_fsinfo *fsinfo;
888 struct nfs4_sequence_res seq_res;
891 struct nfs4_getattr_arg {
892 const struct nfs_fh * fh;
894 struct nfs4_sequence_args seq_args;
897 struct nfs4_getattr_res {
898 const struct nfs_server * server;
899 struct nfs_fattr * fattr;
900 struct nfs4_sequence_res seq_res;
903 struct nfs4_link_arg {
904 const struct nfs_fh * fh;
905 const struct nfs_fh * dir_fh;
906 const struct qstr * name;
908 struct nfs4_sequence_args seq_args;
911 struct nfs4_link_res {
912 const struct nfs_server * server;
913 struct nfs_fattr * fattr;
914 struct nfs4_change_info cinfo;
915 struct nfs_fattr * dir_attr;
916 struct nfs4_sequence_res seq_res;
920 struct nfs4_lookup_arg {
921 const struct nfs_fh * dir_fh;
922 const struct qstr * name;
924 struct nfs4_sequence_args seq_args;
927 struct nfs4_lookup_res {
928 const struct nfs_server * server;
929 struct nfs_fattr * fattr;
931 struct nfs4_sequence_res seq_res;
934 struct nfs4_lookup_root_arg {
936 struct nfs4_sequence_args seq_args;
939 struct nfs4_pathconf_arg {
940 const struct nfs_fh * fh;
942 struct nfs4_sequence_args seq_args;
945 struct nfs4_pathconf_res {
946 struct nfs_pathconf *pathconf;
947 struct nfs4_sequence_res seq_res;
950 struct nfs4_readdir_arg {
951 const struct nfs_fh * fh;
953 nfs4_verifier verifier;
955 struct page ** pages; /* zero-copy data */
956 unsigned int pgbase; /* zero-copy data */
959 struct nfs4_sequence_args seq_args;
962 struct nfs4_readdir_res {
963 nfs4_verifier verifier;
965 struct nfs4_sequence_res seq_res;
968 struct nfs4_readlink {
969 const struct nfs_fh * fh;
971 unsigned int pglen; /* zero-copy data */
972 struct page ** pages; /* zero-copy data */
973 struct nfs4_sequence_args seq_args;
976 struct nfs4_readlink_res {
977 struct nfs4_sequence_res seq_res;
980 #define NFS4_SETCLIENTID_NAMELEN (127)
981 struct nfs4_setclientid {
982 const nfs4_verifier * sc_verifier;
983 unsigned int sc_name_len;
984 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
986 unsigned int sc_netid_len;
987 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
988 unsigned int sc_uaddr_len;
989 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
993 struct nfs4_setclientid_res {
995 nfs4_verifier confirm;
998 struct nfs4_statfs_arg {
999 const struct nfs_fh * fh;
1000 const u32 * bitmask;
1001 struct nfs4_sequence_args seq_args;
1004 struct nfs4_statfs_res {
1005 struct nfs_fsstat *fsstat;
1006 struct nfs4_sequence_res seq_res;
1009 struct nfs4_server_caps_arg {
1010 struct nfs_fh *fhandle;
1011 struct nfs4_sequence_args seq_args;
1014 struct nfs4_server_caps_res {
1015 u32 attr_bitmask[3];
1020 struct nfs4_sequence_res seq_res;
1023 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1024 struct nfs4_pathname {
1025 unsigned int ncomponents;
1026 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1029 #define NFS4_FS_LOCATION_MAXSERVERS 10
1030 struct nfs4_fs_location {
1031 unsigned int nservers;
1032 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1033 struct nfs4_pathname rootpath;
1036 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1037 struct nfs4_fs_locations {
1038 struct nfs_fattr fattr;
1039 const struct nfs_server *server;
1040 struct nfs4_pathname fs_path;
1042 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1045 struct nfs4_fs_locations_arg {
1046 const struct nfs_fh *dir_fh;
1047 const struct qstr *name;
1050 struct nfs4_sequence_args seq_args;
1053 struct nfs4_fs_locations_res {
1054 struct nfs4_fs_locations *fs_locations;
1055 struct nfs4_sequence_res seq_res;
1058 struct nfs4_secinfo_oid {
1060 char data[GSS_OID_MAX_LEN];
1063 struct nfs4_secinfo_gss {
1064 struct nfs4_secinfo_oid sec_oid4;
1066 unsigned int service;
1069 struct nfs4_secinfo_flavor {
1070 unsigned int flavor;
1071 struct nfs4_secinfo_gss gss;
1074 struct nfs4_secinfo_flavors {
1075 unsigned int num_flavors;
1076 struct nfs4_secinfo_flavor flavors[0];
1079 struct nfs4_secinfo_arg {
1080 const struct nfs_fh *dir_fh;
1081 const struct qstr *name;
1082 struct nfs4_sequence_args seq_args;
1085 struct nfs4_secinfo_res {
1086 struct nfs4_secinfo_flavors *flavors;
1087 struct nfs4_sequence_res seq_res;
1090 #endif /* CONFIG_NFS_V4 */
1097 #ifdef CONFIG_NFS_V4_1
1099 struct pnfs_commit_bucket {
1100 struct list_head written;
1101 struct list_head committing;
1102 struct pnfs_layout_segment *wlseg;
1103 struct pnfs_layout_segment *clseg;
1106 struct pnfs_ds_commit_info {
1110 struct pnfs_commit_bucket *buckets;
1113 #define NFS4_EXCHANGE_ID_LEN (48)
1114 struct nfs41_exchange_id_args {
1115 struct nfs_client *client;
1116 nfs4_verifier *verifier;
1117 unsigned int id_len;
1118 char id[NFS4_EXCHANGE_ID_LEN];
1122 struct nfs41_server_owner {
1124 uint32_t major_id_sz;
1125 char major_id[NFS4_OPAQUE_LIMIT];
1128 struct nfs41_server_scope {
1129 uint32_t server_scope_sz;
1130 char server_scope[NFS4_OPAQUE_LIMIT];
1133 struct nfs41_impl_id {
1134 char domain[NFS4_OPAQUE_LIMIT + 1];
1135 char name[NFS4_OPAQUE_LIMIT + 1];
1136 struct nfstime4 date;
1139 struct nfs41_bind_conn_to_session_res {
1140 struct nfs4_session *session;
1142 bool use_conn_in_rdma_mode;
1145 struct nfs41_exchange_id_res {
1149 struct nfs41_server_owner *server_owner;
1150 struct nfs41_server_scope *server_scope;
1151 struct nfs41_impl_id *impl_id;
1154 struct nfs41_create_session_args {
1155 struct nfs_client *client;
1157 uint32_t cb_program;
1158 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1159 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1162 struct nfs41_create_session_res {
1163 struct nfs_client *client;
1166 struct nfs41_reclaim_complete_args {
1167 /* In the future extend to include curr_fh for use with migration */
1168 unsigned char one_fs:1;
1169 struct nfs4_sequence_args seq_args;
1172 struct nfs41_reclaim_complete_res {
1173 struct nfs4_sequence_res seq_res;
1176 #define SECINFO_STYLE_CURRENT_FH 0
1177 #define SECINFO_STYLE_PARENT 1
1178 struct nfs41_secinfo_no_name_args {
1180 struct nfs4_sequence_args seq_args;
1183 struct nfs41_test_stateid_args {
1184 nfs4_stateid *stateid;
1185 struct nfs4_sequence_args seq_args;
1188 struct nfs41_test_stateid_res {
1189 unsigned int status;
1190 struct nfs4_sequence_res seq_res;
1193 struct nfs41_free_stateid_args {
1194 nfs4_stateid *stateid;
1195 struct nfs4_sequence_args seq_args;
1198 struct nfs41_free_stateid_res {
1199 unsigned int status;
1200 struct nfs4_sequence_res seq_res;
1205 struct pnfs_ds_commit_info {
1208 #endif /* CONFIG_NFS_V4_1 */
1212 #define NFS_PAGEVEC_SIZE (8U)
1214 struct nfs_page_array {
1215 struct page **pagevec;
1216 unsigned int npages; /* Max length of pagevec */
1217 struct page *page_array[NFS_PAGEVEC_SIZE];
1220 struct nfs_read_data {
1221 struct nfs_pgio_header *header;
1222 struct list_head list;
1223 struct rpc_task task;
1224 struct nfs_fattr fattr; /* fattr storage */
1225 struct nfs_readargs args;
1226 struct nfs_readres res;
1227 unsigned long timestamp; /* For lease renewal */
1228 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1230 struct nfs_page_array pages;
1231 struct nfs_client *ds_clp; /* pNFS data server */
1234 /* used as flag bits in nfs_pgio_header */
1236 NFS_IOHDR_ERROR = 0,
1239 NFS_IOHDR_NEED_COMMIT,
1240 NFS_IOHDR_NEED_RESCHED,
1243 struct nfs_pgio_header {
1244 struct inode *inode;
1245 struct rpc_cred *cred;
1246 struct list_head pages;
1247 struct list_head rpc_list;
1249 struct nfs_page *req;
1250 struct nfs_writeverf *verf;
1251 struct pnfs_layout_segment *lseg;
1253 const struct rpc_call_ops *mds_ops;
1254 void (*release) (struct nfs_pgio_header *hdr);
1255 const struct nfs_pgio_completion_ops *completion_ops;
1256 struct nfs_direct_req *dreq;
1257 void *layout_private;
1259 /* fields protected by lock */
1261 int error; /* merge with pnfs_error */
1262 unsigned long good_bytes; /* boundary of good data */
1263 unsigned long flags;
1266 struct nfs_read_header {
1267 struct nfs_pgio_header header;
1268 struct nfs_read_data rpc_data;
1271 struct nfs_write_data {
1272 struct nfs_pgio_header *header;
1273 struct list_head list;
1274 struct rpc_task task;
1275 struct nfs_fattr fattr;
1276 struct nfs_writeverf verf;
1277 struct nfs_writeargs args; /* argument struct */
1278 struct nfs_writeres res; /* result struct */
1279 unsigned long timestamp; /* For lease renewal */
1280 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1281 __u64 mds_offset; /* Filelayout dense stripe */
1282 struct nfs_page_array pages;
1283 struct nfs_client *ds_clp; /* pNFS data server */
1286 struct nfs_write_header {
1287 struct nfs_pgio_header header;
1288 struct nfs_write_data rpc_data;
1289 struct nfs_writeverf verf;
1292 struct nfs_mds_commit_info {
1294 unsigned long ncommit;
1295 struct list_head list;
1298 struct nfs_commit_data;
1300 struct nfs_commit_completion_ops {
1301 void (*error_cleanup) (struct nfs_inode *nfsi);
1302 void (*completion) (struct nfs_commit_data *data);
1305 struct nfs_commit_info {
1307 struct nfs_mds_commit_info *mds;
1308 struct pnfs_ds_commit_info *ds;
1309 struct nfs_direct_req *dreq; /* O_DIRECT request */
1310 const struct nfs_commit_completion_ops *completion_ops;
1313 struct nfs_commit_data {
1314 struct rpc_task task;
1315 struct inode *inode;
1316 struct rpc_cred *cred;
1317 struct nfs_fattr fattr;
1318 struct nfs_writeverf verf;
1319 struct list_head pages; /* Coalesced requests we wish to flush */
1320 struct list_head list; /* lists of struct nfs_write_data */
1321 struct nfs_direct_req *dreq; /* O_DIRECT request */
1322 struct nfs_commitargs args; /* argument struct */
1323 struct nfs_commitres res; /* result struct */
1324 struct nfs_open_context *context;
1325 struct pnfs_layout_segment *lseg;
1326 struct nfs_client *ds_clp; /* pNFS data server */
1327 int ds_commit_index;
1328 const struct rpc_call_ops *mds_ops;
1329 const struct nfs_commit_completion_ops *completion_ops;
1330 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1333 struct nfs_pgio_completion_ops {
1334 void (*error_cleanup)(struct list_head *head);
1335 void (*init_hdr)(struct nfs_pgio_header *hdr);
1336 void (*completion)(struct nfs_pgio_header *hdr);
1339 struct nfs_unlinkdata {
1340 struct hlist_node list;
1341 struct nfs_removeargs args;
1342 struct nfs_removeres res;
1344 struct rpc_cred *cred;
1345 struct nfs_fattr dir_attr;
1348 struct nfs_renamedata {
1349 struct nfs_renameargs args;
1350 struct nfs_renameres res;
1351 struct rpc_cred *cred;
1352 struct inode *old_dir;
1353 struct dentry *old_dentry;
1354 struct nfs_fattr old_fattr;
1355 struct inode *new_dir;
1356 struct dentry *new_dentry;
1357 struct nfs_fattr new_fattr;
1360 struct nfs_access_entry;
1363 struct nfs_subversion;
1364 struct nfs_mount_info;
1365 struct nfs_client_initdata;
1366 struct nfs_pageio_descriptor;
1369 * RPC procedure vector for NFSv2/NFSv3 demuxing
1371 struct nfs_rpc_ops {
1372 u32 version; /* Protocol version */
1373 const struct dentry_operations *dentry_ops;
1374 const struct inode_operations *dir_inode_ops;
1375 const struct inode_operations *file_inode_ops;
1376 const struct file_operations *file_ops;
1378 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1379 struct nfs_fsinfo *);
1380 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1381 struct nfs_fh *, struct nfs_fattr *);
1382 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1383 struct nfs_subversion *);
1384 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1385 struct nfs_fattr *);
1386 int (*setattr) (struct dentry *, struct nfs_fattr *,
1388 int (*lookup) (struct inode *, struct qstr *,
1389 struct nfs_fh *, struct nfs_fattr *);
1390 int (*access) (struct inode *, struct nfs_access_entry *);
1391 int (*readlink)(struct inode *, struct page *, unsigned int,
1393 int (*create) (struct inode *, struct dentry *,
1394 struct iattr *, int);
1395 int (*remove) (struct inode *, struct qstr *);
1396 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1397 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1398 int (*unlink_done) (struct rpc_task *, struct inode *);
1399 int (*rename) (struct inode *, struct qstr *,
1400 struct inode *, struct qstr *);
1401 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1402 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1403 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1404 int (*link) (struct inode *, struct inode *, struct qstr *);
1405 int (*symlink) (struct inode *, struct dentry *, struct page *,
1406 unsigned int, struct iattr *);
1407 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1408 int (*rmdir) (struct inode *, struct qstr *);
1409 int (*readdir) (struct dentry *, struct rpc_cred *,
1410 u64, struct page **, unsigned int, int);
1411 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1413 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1414 struct nfs_fsstat *);
1415 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1416 struct nfs_fsinfo *);
1417 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1418 struct nfs_pathconf *);
1419 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1420 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1421 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1422 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1423 const struct nfs_pgio_completion_ops *);
1424 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1425 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1426 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1427 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1428 const struct nfs_pgio_completion_ops *);
1429 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1430 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1431 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1432 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1433 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1434 int (*lock)(struct file *, int, struct file_lock *);
1435 int (*lock_check_bounds)(const struct file_lock *);
1436 void (*clear_acl_cache)(struct inode *);
1437 void (*close_context)(struct nfs_open_context *ctx, int);
1438 struct inode * (*open_context) (struct inode *dir,
1439 struct nfs_open_context *ctx,
1441 struct iattr *iattr);
1442 int (*have_delegation)(struct inode *, fmode_t);
1443 int (*return_delegation)(struct inode *);
1444 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1446 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1447 const char *, rpc_authflavor_t);
1448 void (*free_client) (struct nfs_client *);
1449 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1450 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1451 struct nfs_fattr *, rpc_authflavor_t);
1455 * NFS_CALL(getattr, inode, (fattr));
1457 * NFS_PROTO(inode)->getattr(fattr);
1459 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1462 * Function vectors etc. for the NFS client
1464 extern const struct nfs_rpc_ops nfs_v2_clientops;
1465 extern const struct nfs_rpc_ops nfs_v3_clientops;
1466 extern const struct nfs_rpc_ops nfs_v4_clientops;
1467 extern const struct rpc_version nfs_version2;
1468 extern const struct rpc_version nfs_version3;
1469 extern const struct rpc_version nfs_version4;
1471 extern const struct rpc_version nfsacl_version3;
1472 extern const struct rpc_program nfsacl_program;