1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
17 /* Forward declaration for NFS v3 */
18 struct nfs4_secinfo_flavors;
31 * Helper for checking equality between 2 fsids.
33 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
35 return a->major == b->major && a->minor == b->minor;
38 struct nfs4_threshold {
48 unsigned int valid; /* which fields are valid */
66 __u64 mounted_on_fileid;
67 struct timespec atime;
68 struct timespec mtime;
69 struct timespec ctime;
70 __u64 change_attr; /* NFSv4 change attribute */
71 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
72 __u64 pre_size; /* pre_op_attr.size */
73 struct timespec pre_mtime; /* pre_op_attr.mtime */
74 struct timespec pre_ctime; /* pre_op_attr.ctime */
75 unsigned long time_start;
76 unsigned long gencount;
77 struct nfs4_string *owner_name;
78 struct nfs4_string *group_name;
79 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
82 #define NFS_ATTR_FATTR_TYPE (1U << 0)
83 #define NFS_ATTR_FATTR_MODE (1U << 1)
84 #define NFS_ATTR_FATTR_NLINK (1U << 2)
85 #define NFS_ATTR_FATTR_OWNER (1U << 3)
86 #define NFS_ATTR_FATTR_GROUP (1U << 4)
87 #define NFS_ATTR_FATTR_RDEV (1U << 5)
88 #define NFS_ATTR_FATTR_SIZE (1U << 6)
89 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
90 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
91 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
92 #define NFS_ATTR_FATTR_FSID (1U << 10)
93 #define NFS_ATTR_FATTR_FILEID (1U << 11)
94 #define NFS_ATTR_FATTR_ATIME (1U << 12)
95 #define NFS_ATTR_FATTR_MTIME (1U << 13)
96 #define NFS_ATTR_FATTR_CTIME (1U << 14)
97 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
98 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
99 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
100 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
101 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
102 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
103 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
104 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
105 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
106 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
108 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
109 | NFS_ATTR_FATTR_MODE \
110 | NFS_ATTR_FATTR_NLINK \
111 | NFS_ATTR_FATTR_OWNER \
112 | NFS_ATTR_FATTR_GROUP \
113 | NFS_ATTR_FATTR_RDEV \
114 | NFS_ATTR_FATTR_SIZE \
115 | NFS_ATTR_FATTR_FSID \
116 | NFS_ATTR_FATTR_FILEID \
117 | NFS_ATTR_FATTR_ATIME \
118 | NFS_ATTR_FATTR_MTIME \
119 | NFS_ATTR_FATTR_CTIME \
120 | NFS_ATTR_FATTR_CHANGE)
121 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_BLOCKS_USED)
123 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED)
125 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
126 | NFS_ATTR_FATTR_SPACE_USED)
129 * Info on the file system
132 struct nfs_fattr *fattr; /* Post-op attributes */
133 __u32 rtmax; /* max. read transfer size */
134 __u32 rtpref; /* pref. read transfer size */
135 __u32 rtmult; /* reads should be multiple of this */
136 __u32 wtmax; /* max. write transfer size */
137 __u32 wtpref; /* pref. write transfer size */
138 __u32 wtmult; /* writes should be multiple of this */
139 __u32 dtpref; /* pref. readdir transfer size */
141 struct timespec time_delta; /* server time granularity */
142 __u32 lease_time; /* in seconds */
143 __u32 layouttype; /* supported pnfs layout driver */
144 __u32 blksize; /* preferred pnfs io block size */
148 struct nfs_fattr *fattr; /* Post-op attributes */
149 __u64 tbytes; /* total size in bytes */
150 __u64 fbytes; /* # of free bytes */
151 __u64 abytes; /* # of bytes available to user */
152 __u64 tfiles; /* # of files */
153 __u64 ffiles; /* # of free files */
154 __u64 afiles; /* # of files available to user */
158 __u32 tsize; /* Server transfer size */
159 __u32 bsize; /* Filesystem block size */
160 __u32 blocks; /* No. of "bsize" blocks on filesystem */
161 __u32 bfree; /* No. of free "bsize" blocks */
162 __u32 bavail; /* No. of available "bsize" blocks */
165 struct nfs_pathconf {
166 struct nfs_fattr *fattr; /* Post-op attributes */
167 __u32 max_link; /* max # of hard links */
168 __u32 max_namelen; /* max name length */
171 struct nfs4_change_info {
179 /* nfs41 sessions channel attributes */
180 struct nfs4_channel_attrs {
183 u32 max_resp_sz_cached;
189 struct nfs4_sequence_args {
190 struct nfs4_slot *sa_slot;
191 u8 sa_cache_this : 1,
195 struct nfs4_sequence_res {
196 struct nfs4_slot *sr_slot; /* slot used to send request */
197 unsigned long sr_timestamp;
198 int sr_status; /* sequence operation status */
200 u32 sr_highest_slotid;
201 u32 sr_target_highest_slotid;
204 struct nfs4_get_lease_time_args {
205 struct nfs4_sequence_args la_seq_args;
208 struct nfs4_get_lease_time_res {
209 struct nfs4_sequence_res lr_seq_res;
210 struct nfs_fsinfo *lr_fsinfo;
213 #define PNFS_LAYOUT_MAXSIZE 4096
215 struct nfs4_layoutdriver_data {
221 struct pnfs_layout_range {
227 struct nfs4_layoutget_args {
228 struct nfs4_sequence_args seq_args;
230 struct pnfs_layout_range range;
234 struct nfs_open_context *ctx;
235 nfs4_stateid stateid;
236 struct nfs4_layoutdriver_data layout;
239 struct nfs4_layoutget_res {
240 struct nfs4_sequence_res seq_res;
241 __u32 return_on_close;
242 struct pnfs_layout_range range;
244 nfs4_stateid stateid;
245 struct nfs4_layoutdriver_data *layoutp;
248 struct nfs4_layoutget {
249 struct nfs4_layoutget_args args;
250 struct nfs4_layoutget_res res;
254 struct nfs4_getdevicelist_args {
255 struct nfs4_sequence_args seq_args;
256 const struct nfs_fh *fh;
260 struct nfs4_getdevicelist_res {
261 struct nfs4_sequence_res seq_res;
262 struct pnfs_devicelist *devlist;
265 struct nfs4_getdeviceinfo_args {
266 struct nfs4_sequence_args seq_args;
267 struct pnfs_device *pdev;
270 struct nfs4_getdeviceinfo_res {
271 struct nfs4_sequence_res seq_res;
272 struct pnfs_device *pdev;
275 struct nfs4_layoutcommit_args {
276 struct nfs4_sequence_args seq_args;
277 nfs4_stateid stateid;
278 __u64 lastbytewritten;
283 struct nfs4_layoutcommit_res {
284 struct nfs4_sequence_res seq_res;
285 struct nfs_fattr *fattr;
286 const struct nfs_server *server;
290 struct nfs4_layoutcommit_data {
291 struct rpc_task task;
292 struct nfs_fattr fattr;
293 struct list_head lseg_list;
294 struct rpc_cred *cred;
295 struct nfs4_layoutcommit_args args;
296 struct nfs4_layoutcommit_res res;
299 struct nfs4_layoutreturn_args {
300 struct nfs4_sequence_args seq_args;
301 struct pnfs_layout_hdr *layout;
303 nfs4_stateid stateid;
307 struct nfs4_layoutreturn_res {
308 struct nfs4_sequence_res seq_res;
310 nfs4_stateid stateid;
313 struct nfs4_layoutreturn {
314 struct nfs4_layoutreturn_args args;
315 struct nfs4_layoutreturn_res res;
316 struct rpc_cred *cred;
317 struct nfs_client *clp;
321 struct stateowner_id {
327 * Arguments to the open call.
329 struct nfs_openargs {
330 struct nfs4_sequence_args seq_args;
331 const struct nfs_fh * fh;
332 struct nfs_seqid * seqid;
337 struct stateowner_id id;
340 struct iattr * attrs; /* UNCHECKED, GUARDED */
341 nfs4_verifier verifier; /* EXCLUSIVE */
343 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
344 fmode_t delegation_type; /* CLAIM_PREVIOUS */
346 const struct qstr * name;
347 const struct nfs_server *server; /* Needed for ID mapping */
349 const u32 * open_bitmap;
354 struct nfs4_sequence_res seq_res;
355 nfs4_stateid stateid;
357 struct nfs4_change_info cinfo;
359 struct nfs_fattr * f_attr;
360 struct nfs_seqid * seqid;
361 const struct nfs_server *server;
362 fmode_t delegation_type;
363 nfs4_stateid delegation;
366 __u32 attrset[NFS4_BITMAP_SIZE];
367 struct nfs4_string *owner;
368 struct nfs4_string *group_owner;
369 __u32 access_request;
370 __u32 access_supported;
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 {
392 struct nfs4_sequence_args seq_args;
394 nfs4_stateid * stateid;
395 struct nfs_seqid * seqid;
400 struct nfs_closeres {
401 struct nfs4_sequence_res seq_res;
402 nfs4_stateid stateid;
403 struct nfs_fattr * fattr;
404 struct nfs_seqid * seqid;
405 const struct nfs_server *server;
408 * * Arguments to the lock,lockt, and locku call.
416 struct nfs_lock_args {
417 struct nfs4_sequence_args seq_args;
419 struct file_lock * fl;
420 struct nfs_seqid * lock_seqid;
421 nfs4_stateid * lock_stateid;
422 struct nfs_seqid * open_seqid;
423 nfs4_stateid * open_stateid;
424 struct nfs_lowner lock_owner;
425 unsigned char block : 1;
426 unsigned char reclaim : 1;
427 unsigned char new_lock_owner : 1;
430 struct nfs_lock_res {
431 struct nfs4_sequence_res seq_res;
432 nfs4_stateid stateid;
433 struct nfs_seqid * lock_seqid;
434 struct nfs_seqid * open_seqid;
437 struct nfs_locku_args {
438 struct nfs4_sequence_args seq_args;
440 struct file_lock * fl;
441 struct nfs_seqid * seqid;
442 nfs4_stateid * stateid;
445 struct nfs_locku_res {
446 struct nfs4_sequence_res seq_res;
447 nfs4_stateid stateid;
448 struct nfs_seqid * seqid;
451 struct nfs_lockt_args {
452 struct nfs4_sequence_args seq_args;
454 struct file_lock * fl;
455 struct nfs_lowner lock_owner;
458 struct nfs_lockt_res {
459 struct nfs4_sequence_res seq_res;
460 struct file_lock * denied; /* LOCK, LOCKT failed */
463 struct nfs_release_lockowner_args {
464 struct nfs_lowner lock_owner;
467 struct nfs4_delegreturnargs {
468 struct nfs4_sequence_args seq_args;
469 const struct nfs_fh *fhandle;
470 const nfs4_stateid *stateid;
474 struct nfs4_delegreturnres {
475 struct nfs4_sequence_res seq_res;
476 struct nfs_fattr * fattr;
477 const struct nfs_server *server;
481 * Arguments to the read call.
483 struct nfs_readargs {
484 struct nfs4_sequence_args seq_args;
486 struct nfs_open_context *context;
487 struct nfs_lock_context *lock_context;
491 struct page ** pages;
495 struct nfs4_sequence_res seq_res;
496 struct nfs_fattr * fattr;
502 * Arguments to the write call.
504 struct nfs_writeargs {
505 struct nfs4_sequence_args seq_args;
507 struct nfs_open_context *context;
508 struct nfs_lock_context *lock_context;
511 enum nfs3_stable_how stable;
513 struct page ** pages;
517 struct nfs_write_verifier {
521 struct nfs_writeverf {
522 struct nfs_write_verifier verifier;
523 enum nfs3_stable_how committed;
526 struct nfs_writeres {
527 struct nfs4_sequence_res seq_res;
528 struct nfs_fattr * fattr;
529 struct nfs_writeverf * verf;
531 const struct nfs_server *server;
535 * Arguments to the commit call.
537 struct nfs_commitargs {
538 struct nfs4_sequence_args seq_args;
545 struct nfs_commitres {
546 struct nfs4_sequence_res seq_res;
547 struct nfs_fattr *fattr;
548 struct nfs_writeverf *verf;
549 const struct nfs_server *server;
553 * Common arguments to the unlink call
555 struct nfs_removeargs {
556 struct nfs4_sequence_args seq_args;
557 const struct nfs_fh *fh;
561 struct nfs_removeres {
562 struct nfs4_sequence_res seq_res;
563 const struct nfs_server *server;
564 struct nfs_fattr *dir_attr;
565 struct nfs4_change_info cinfo;
569 * Common arguments to the rename call
571 struct nfs_renameargs {
572 struct nfs4_sequence_args seq_args;
573 const struct nfs_fh *old_dir;
574 const struct nfs_fh *new_dir;
575 const struct qstr *old_name;
576 const struct qstr *new_name;
579 struct nfs_renameres {
580 struct nfs4_sequence_res seq_res;
581 const struct nfs_server *server;
582 struct nfs4_change_info old_cinfo;
583 struct nfs_fattr *old_fattr;
584 struct nfs4_change_info new_cinfo;
585 struct nfs_fattr *new_fattr;
589 * Argument struct for decode_entry function
599 struct nfs_fattr * fattr;
600 unsigned char d_type;
601 struct nfs_server * server;
605 * The following types are for NFSv2 only.
607 struct nfs_sattrargs {
609 struct iattr * sattr;
612 struct nfs_diropargs {
618 struct nfs_createargs {
622 struct iattr * sattr;
625 struct nfs_setattrargs {
626 struct nfs4_sequence_args seq_args;
628 nfs4_stateid stateid;
630 const struct nfs_server * server; /* Needed for name mapping */
634 struct nfs_setaclargs {
635 struct nfs4_sequence_args seq_args;
638 unsigned int acl_pgbase;
639 struct page ** acl_pages;
642 struct nfs_setaclres {
643 struct nfs4_sequence_res seq_res;
646 struct nfs_getaclargs {
647 struct nfs4_sequence_args seq_args;
650 unsigned int acl_pgbase;
651 struct page ** acl_pages;
654 /* getxattr ACL interface flags */
655 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
656 struct nfs_getaclres {
657 struct nfs4_sequence_res seq_res;
659 size_t acl_data_offset;
661 struct page * acl_scratch;
664 struct nfs_setattrres {
665 struct nfs4_sequence_res seq_res;
666 struct nfs_fattr * fattr;
667 const struct nfs_server * server;
670 struct nfs_linkargs {
671 struct nfs_fh * fromfh;
672 struct nfs_fh * tofh;
677 struct nfs_symlinkargs {
678 struct nfs_fh * fromfh;
679 const char * fromname;
680 unsigned int fromlen;
681 struct page ** pages;
682 unsigned int pathlen;
683 struct iattr * sattr;
686 struct nfs_readdirargs {
690 struct page ** pages;
693 struct nfs3_getaclargs {
696 struct page ** pages;
699 struct nfs3_setaclargs {
700 struct inode * inode;
702 struct posix_acl * acl_access;
703 struct posix_acl * acl_default;
706 struct page ** pages;
711 struct nfs_fattr * fattr;
714 struct nfs_readlinkargs {
718 struct page ** pages;
721 struct nfs3_sattrargs {
723 struct iattr * sattr;
725 struct timespec guardtime;
728 struct nfs3_diropargs {
734 struct nfs3_accessargs {
739 struct nfs3_createargs {
743 struct iattr * sattr;
744 enum nfs3_createmode createmode;
748 struct nfs3_mkdirargs {
752 struct iattr * sattr;
755 struct nfs3_symlinkargs {
756 struct nfs_fh * fromfh;
757 const char * fromname;
758 unsigned int fromlen;
759 struct page ** pages;
760 unsigned int pathlen;
761 struct iattr * sattr;
764 struct nfs3_mknodargs {
768 enum nfs3_ftype type;
769 struct iattr * sattr;
773 struct nfs3_linkargs {
774 struct nfs_fh * fromfh;
775 struct nfs_fh * tofh;
780 struct nfs3_readdirargs {
786 struct page ** pages;
789 struct nfs3_diropres {
790 struct nfs_fattr * dir_attr;
792 struct nfs_fattr * fattr;
795 struct nfs3_accessres {
796 struct nfs_fattr * fattr;
800 struct nfs3_readlinkargs {
804 struct page ** pages;
807 struct nfs3_linkres {
808 struct nfs_fattr * dir_attr;
809 struct nfs_fattr * fattr;
812 struct nfs3_readdirres {
813 struct nfs_fattr * dir_attr;
818 struct nfs3_getaclres {
819 struct nfs_fattr * fattr;
821 unsigned int acl_access_count;
822 unsigned int acl_default_count;
823 struct posix_acl * acl_access;
824 struct posix_acl * acl_default;
827 #if IS_ENABLED(CONFIG_NFS_V4)
829 typedef u64 clientid4;
831 struct nfs4_accessargs {
832 struct nfs4_sequence_args seq_args;
833 const struct nfs_fh * fh;
838 struct nfs4_accessres {
839 struct nfs4_sequence_res seq_res;
840 const struct nfs_server * server;
841 struct nfs_fattr * fattr;
846 struct nfs4_create_arg {
847 struct nfs4_sequence_args seq_args;
851 struct page ** pages;
853 } symlink; /* NF4LNK */
857 } device; /* NF4BLK, NF4CHR */
859 const struct qstr * name;
860 const struct nfs_server * server;
861 const struct iattr * attrs;
862 const struct nfs_fh * dir_fh;
866 struct nfs4_create_res {
867 struct nfs4_sequence_res seq_res;
868 const struct nfs_server * server;
870 struct nfs_fattr * fattr;
871 struct nfs4_change_info dir_cinfo;
874 struct nfs4_fsinfo_arg {
875 struct nfs4_sequence_args seq_args;
876 const struct nfs_fh * fh;
880 struct nfs4_fsinfo_res {
881 struct nfs4_sequence_res seq_res;
882 struct nfs_fsinfo *fsinfo;
885 struct nfs4_getattr_arg {
886 struct nfs4_sequence_args seq_args;
887 const struct nfs_fh * fh;
891 struct nfs4_getattr_res {
892 struct nfs4_sequence_res seq_res;
893 const struct nfs_server * server;
894 struct nfs_fattr * fattr;
897 struct nfs4_link_arg {
898 struct nfs4_sequence_args seq_args;
899 const struct nfs_fh * fh;
900 const struct nfs_fh * dir_fh;
901 const struct qstr * name;
905 struct nfs4_link_res {
906 struct nfs4_sequence_res seq_res;
907 const struct nfs_server * server;
908 struct nfs_fattr * fattr;
909 struct nfs4_change_info cinfo;
910 struct nfs_fattr * dir_attr;
914 struct nfs4_lookup_arg {
915 struct nfs4_sequence_args seq_args;
916 const struct nfs_fh * dir_fh;
917 const struct qstr * name;
921 struct nfs4_lookup_res {
922 struct nfs4_sequence_res seq_res;
923 const struct nfs_server * server;
924 struct nfs_fattr * fattr;
928 struct nfs4_lookup_root_arg {
929 struct nfs4_sequence_args seq_args;
933 struct nfs4_pathconf_arg {
934 struct nfs4_sequence_args seq_args;
935 const struct nfs_fh * fh;
939 struct nfs4_pathconf_res {
940 struct nfs4_sequence_res seq_res;
941 struct nfs_pathconf *pathconf;
944 struct nfs4_readdir_arg {
945 struct nfs4_sequence_args seq_args;
946 const struct nfs_fh * fh;
948 nfs4_verifier verifier;
950 struct page ** pages; /* zero-copy data */
951 unsigned int pgbase; /* zero-copy data */
956 struct nfs4_readdir_res {
957 struct nfs4_sequence_res seq_res;
958 nfs4_verifier verifier;
962 struct nfs4_readlink {
963 struct nfs4_sequence_args seq_args;
964 const struct nfs_fh * fh;
966 unsigned int pglen; /* zero-copy data */
967 struct page ** pages; /* zero-copy data */
970 struct nfs4_readlink_res {
971 struct nfs4_sequence_res seq_res;
974 #define NFS4_SETCLIENTID_NAMELEN (127)
975 struct nfs4_setclientid {
976 const nfs4_verifier * sc_verifier;
977 unsigned int sc_name_len;
978 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
980 unsigned int sc_netid_len;
981 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
982 unsigned int sc_uaddr_len;
983 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
987 struct nfs4_setclientid_res {
989 nfs4_verifier confirm;
992 struct nfs4_statfs_arg {
993 struct nfs4_sequence_args seq_args;
994 const struct nfs_fh * fh;
998 struct nfs4_statfs_res {
999 struct nfs4_sequence_res seq_res;
1000 struct nfs_fsstat *fsstat;
1003 struct nfs4_server_caps_arg {
1004 struct nfs4_sequence_args seq_args;
1005 struct nfs_fh *fhandle;
1008 struct nfs4_server_caps_res {
1009 struct nfs4_sequence_res seq_res;
1010 u32 attr_bitmask[3];
1017 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1018 struct nfs4_pathname {
1019 unsigned int ncomponents;
1020 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1023 #define NFS4_FS_LOCATION_MAXSERVERS 10
1024 struct nfs4_fs_location {
1025 unsigned int nservers;
1026 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1027 struct nfs4_pathname rootpath;
1030 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1031 struct nfs4_fs_locations {
1032 struct nfs_fattr fattr;
1033 const struct nfs_server *server;
1034 struct nfs4_pathname fs_path;
1036 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1039 struct nfs4_fs_locations_arg {
1040 struct nfs4_sequence_args seq_args;
1041 const struct nfs_fh *dir_fh;
1042 const struct qstr *name;
1047 struct nfs4_fs_locations_res {
1048 struct nfs4_sequence_res seq_res;
1049 struct nfs4_fs_locations *fs_locations;
1052 struct nfs4_secinfo_oid {
1054 char data[GSS_OID_MAX_LEN];
1057 struct nfs4_secinfo_gss {
1058 struct nfs4_secinfo_oid sec_oid4;
1060 unsigned int service;
1063 struct nfs4_secinfo_flavor {
1064 unsigned int flavor;
1065 struct nfs4_secinfo_gss gss;
1068 struct nfs4_secinfo_flavors {
1069 unsigned int num_flavors;
1070 struct nfs4_secinfo_flavor flavors[0];
1073 struct nfs4_secinfo_arg {
1074 struct nfs4_sequence_args seq_args;
1075 const struct nfs_fh *dir_fh;
1076 const struct qstr *name;
1079 struct nfs4_secinfo_res {
1080 struct nfs4_sequence_res seq_res;
1081 struct nfs4_secinfo_flavors *flavors;
1084 #endif /* CONFIG_NFS_V4 */
1091 #ifdef CONFIG_NFS_V4_1
1093 struct pnfs_commit_bucket {
1094 struct list_head written;
1095 struct list_head committing;
1096 struct pnfs_layout_segment *wlseg;
1097 struct pnfs_layout_segment *clseg;
1100 struct pnfs_ds_commit_info {
1104 struct pnfs_commit_bucket *buckets;
1107 #define NFS4_EXCHANGE_ID_LEN (48)
1108 struct nfs41_exchange_id_args {
1109 struct nfs_client *client;
1110 nfs4_verifier *verifier;
1111 unsigned int id_len;
1112 char id[NFS4_EXCHANGE_ID_LEN];
1116 struct nfs41_server_owner {
1118 uint32_t major_id_sz;
1119 char major_id[NFS4_OPAQUE_LIMIT];
1122 struct nfs41_server_scope {
1123 uint32_t server_scope_sz;
1124 char server_scope[NFS4_OPAQUE_LIMIT];
1127 struct nfs41_impl_id {
1128 char domain[NFS4_OPAQUE_LIMIT + 1];
1129 char name[NFS4_OPAQUE_LIMIT + 1];
1130 struct nfstime4 date;
1133 struct nfs41_bind_conn_to_session_res {
1134 struct nfs4_session *session;
1136 bool use_conn_in_rdma_mode;
1139 struct nfs41_exchange_id_res {
1143 struct nfs41_server_owner *server_owner;
1144 struct nfs41_server_scope *server_scope;
1145 struct nfs41_impl_id *impl_id;
1148 struct nfs41_create_session_args {
1149 struct nfs_client *client;
1151 uint32_t cb_program;
1152 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1153 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1156 struct nfs41_create_session_res {
1157 struct nfs_client *client;
1160 struct nfs41_reclaim_complete_args {
1161 struct nfs4_sequence_args seq_args;
1162 /* In the future extend to include curr_fh for use with migration */
1163 unsigned char one_fs:1;
1166 struct nfs41_reclaim_complete_res {
1167 struct nfs4_sequence_res seq_res;
1170 #define SECINFO_STYLE_CURRENT_FH 0
1171 #define SECINFO_STYLE_PARENT 1
1172 struct nfs41_secinfo_no_name_args {
1173 struct nfs4_sequence_args seq_args;
1177 struct nfs41_test_stateid_args {
1178 struct nfs4_sequence_args seq_args;
1179 nfs4_stateid *stateid;
1182 struct nfs41_test_stateid_res {
1183 struct nfs4_sequence_res seq_res;
1184 unsigned int status;
1187 struct nfs41_free_stateid_args {
1188 struct nfs4_sequence_args seq_args;
1189 nfs4_stateid *stateid;
1192 struct nfs41_free_stateid_res {
1193 struct nfs4_sequence_res seq_res;
1194 unsigned int status;
1199 struct pnfs_ds_commit_info {
1202 #endif /* CONFIG_NFS_V4_1 */
1206 #define NFS_PAGEVEC_SIZE (8U)
1208 struct nfs_page_array {
1209 struct page **pagevec;
1210 unsigned int npages; /* Max length of pagevec */
1211 struct page *page_array[NFS_PAGEVEC_SIZE];
1214 struct nfs_read_data {
1215 struct nfs_pgio_header *header;
1216 struct list_head list;
1217 struct rpc_task task;
1218 struct nfs_fattr fattr; /* fattr storage */
1219 struct nfs_readargs args;
1220 struct nfs_readres res;
1221 unsigned long timestamp; /* For lease renewal */
1222 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1224 struct nfs_page_array pages;
1225 struct nfs_client *ds_clp; /* pNFS data server */
1228 /* used as flag bits in nfs_pgio_header */
1230 NFS_IOHDR_ERROR = 0,
1233 NFS_IOHDR_NEED_COMMIT,
1234 NFS_IOHDR_NEED_RESCHED,
1237 struct nfs_pgio_header {
1238 struct inode *inode;
1239 struct rpc_cred *cred;
1240 struct list_head pages;
1241 struct list_head rpc_list;
1243 struct nfs_page *req;
1244 struct nfs_writeverf *verf;
1245 struct pnfs_layout_segment *lseg;
1247 const struct rpc_call_ops *mds_ops;
1248 void (*release) (struct nfs_pgio_header *hdr);
1249 const struct nfs_pgio_completion_ops *completion_ops;
1250 struct nfs_direct_req *dreq;
1251 void *layout_private;
1253 /* fields protected by lock */
1255 int error; /* merge with pnfs_error */
1256 unsigned long good_bytes; /* boundary of good data */
1257 unsigned long flags;
1260 struct nfs_read_header {
1261 struct nfs_pgio_header header;
1262 struct nfs_read_data rpc_data;
1265 struct nfs_write_data {
1266 struct nfs_pgio_header *header;
1267 struct list_head list;
1268 struct rpc_task task;
1269 struct nfs_fattr fattr;
1270 struct nfs_writeverf verf;
1271 struct nfs_writeargs args; /* argument struct */
1272 struct nfs_writeres res; /* result struct */
1273 unsigned long timestamp; /* For lease renewal */
1274 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1275 __u64 mds_offset; /* Filelayout dense stripe */
1276 struct nfs_page_array pages;
1277 struct nfs_client *ds_clp; /* pNFS data server */
1280 struct nfs_write_header {
1281 struct nfs_pgio_header header;
1282 struct nfs_write_data rpc_data;
1283 struct nfs_writeverf verf;
1286 struct nfs_mds_commit_info {
1288 unsigned long ncommit;
1289 struct list_head list;
1292 struct nfs_commit_data;
1294 struct nfs_commit_completion_ops {
1295 void (*error_cleanup) (struct nfs_inode *nfsi);
1296 void (*completion) (struct nfs_commit_data *data);
1299 struct nfs_commit_info {
1301 struct nfs_mds_commit_info *mds;
1302 struct pnfs_ds_commit_info *ds;
1303 struct nfs_direct_req *dreq; /* O_DIRECT request */
1304 const struct nfs_commit_completion_ops *completion_ops;
1307 struct nfs_commit_data {
1308 struct rpc_task task;
1309 struct inode *inode;
1310 struct rpc_cred *cred;
1311 struct nfs_fattr fattr;
1312 struct nfs_writeverf verf;
1313 struct list_head pages; /* Coalesced requests we wish to flush */
1314 struct list_head list; /* lists of struct nfs_write_data */
1315 struct nfs_direct_req *dreq; /* O_DIRECT request */
1316 struct nfs_commitargs args; /* argument struct */
1317 struct nfs_commitres res; /* result struct */
1318 struct nfs_open_context *context;
1319 struct pnfs_layout_segment *lseg;
1320 struct nfs_client *ds_clp; /* pNFS data server */
1321 int ds_commit_index;
1322 const struct rpc_call_ops *mds_ops;
1323 const struct nfs_commit_completion_ops *completion_ops;
1324 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1327 struct nfs_pgio_completion_ops {
1328 void (*error_cleanup)(struct list_head *head);
1329 void (*init_hdr)(struct nfs_pgio_header *hdr);
1330 void (*completion)(struct nfs_pgio_header *hdr);
1333 struct nfs_unlinkdata {
1334 struct hlist_node list;
1335 struct nfs_removeargs args;
1336 struct nfs_removeres res;
1338 struct rpc_cred *cred;
1339 struct nfs_fattr dir_attr;
1342 struct nfs_renamedata {
1343 struct nfs_renameargs args;
1344 struct nfs_renameres res;
1345 struct rpc_cred *cred;
1346 struct inode *old_dir;
1347 struct dentry *old_dentry;
1348 struct nfs_fattr old_fattr;
1349 struct inode *new_dir;
1350 struct dentry *new_dentry;
1351 struct nfs_fattr new_fattr;
1354 struct nfs_access_entry;
1357 struct nfs_subversion;
1358 struct nfs_mount_info;
1359 struct nfs_client_initdata;
1360 struct nfs_pageio_descriptor;
1363 * RPC procedure vector for NFSv2/NFSv3 demuxing
1365 struct nfs_rpc_ops {
1366 u32 version; /* Protocol version */
1367 const struct dentry_operations *dentry_ops;
1368 const struct inode_operations *dir_inode_ops;
1369 const struct inode_operations *file_inode_ops;
1370 const struct file_operations *file_ops;
1372 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1373 struct nfs_fsinfo *);
1374 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1375 struct nfs_fh *, struct nfs_fattr *);
1376 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1377 struct nfs_subversion *);
1378 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1379 struct nfs_fattr *);
1380 int (*setattr) (struct dentry *, struct nfs_fattr *,
1382 int (*lookup) (struct inode *, struct qstr *,
1383 struct nfs_fh *, struct nfs_fattr *);
1384 int (*access) (struct inode *, struct nfs_access_entry *);
1385 int (*readlink)(struct inode *, struct page *, unsigned int,
1387 int (*create) (struct inode *, struct dentry *,
1388 struct iattr *, int);
1389 int (*remove) (struct inode *, struct qstr *);
1390 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1391 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1392 int (*unlink_done) (struct rpc_task *, struct inode *);
1393 int (*rename) (struct inode *, struct qstr *,
1394 struct inode *, struct qstr *);
1395 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1396 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1397 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1398 int (*link) (struct inode *, struct inode *, struct qstr *);
1399 int (*symlink) (struct inode *, struct dentry *, struct page *,
1400 unsigned int, struct iattr *);
1401 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1402 int (*rmdir) (struct inode *, struct qstr *);
1403 int (*readdir) (struct dentry *, struct rpc_cred *,
1404 u64, struct page **, unsigned int, int);
1405 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1407 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1408 struct nfs_fsstat *);
1409 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1410 struct nfs_fsinfo *);
1411 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1412 struct nfs_pathconf *);
1413 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1414 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1415 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1416 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1417 const struct nfs_pgio_completion_ops *);
1418 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1419 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1420 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1421 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1422 const struct nfs_pgio_completion_ops *);
1423 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1424 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1425 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1426 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1427 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1428 int (*lock)(struct file *, int, struct file_lock *);
1429 int (*lock_check_bounds)(const struct file_lock *);
1430 void (*clear_acl_cache)(struct inode *);
1431 void (*close_context)(struct nfs_open_context *ctx, int);
1432 struct inode * (*open_context) (struct inode *dir,
1433 struct nfs_open_context *ctx,
1435 struct iattr *iattr);
1436 int (*have_delegation)(struct inode *, fmode_t);
1437 int (*return_delegation)(struct inode *);
1438 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1440 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1441 const char *, rpc_authflavor_t);
1442 void (*free_client) (struct nfs_client *);
1443 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1444 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1445 struct nfs_fattr *, rpc_authflavor_t);
1449 * NFS_CALL(getattr, inode, (fattr));
1451 * NFS_PROTO(inode)->getattr(fattr);
1453 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1456 * Function vectors etc. for the NFS client
1458 extern const struct nfs_rpc_ops nfs_v2_clientops;
1459 extern const struct nfs_rpc_ops nfs_v3_clientops;
1460 extern const struct nfs_rpc_ops nfs_v4_clientops;
1461 extern const struct rpc_version nfs_version2;
1462 extern const struct rpc_version nfs_version3;
1463 extern const struct rpc_version nfs_version4;
1465 extern const struct rpc_version nfsacl_version3;
1466 extern const struct rpc_program nfsacl_program;