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;
39 unsigned int valid; /* which fields are valid */
57 __u64 mounted_on_fileid;
58 struct timespec atime;
59 struct timespec mtime;
60 struct timespec ctime;
61 __u64 change_attr; /* NFSv4 change attribute */
62 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
63 __u64 pre_size; /* pre_op_attr.size */
64 struct timespec pre_mtime; /* pre_op_attr.mtime */
65 struct timespec pre_ctime; /* pre_op_attr.ctime */
66 unsigned long time_start;
67 unsigned long gencount;
68 struct nfs4_string *owner_name;
69 struct nfs4_string *group_name;
72 #define NFS_ATTR_FATTR_TYPE (1U << 0)
73 #define NFS_ATTR_FATTR_MODE (1U << 1)
74 #define NFS_ATTR_FATTR_NLINK (1U << 2)
75 #define NFS_ATTR_FATTR_OWNER (1U << 3)
76 #define NFS_ATTR_FATTR_GROUP (1U << 4)
77 #define NFS_ATTR_FATTR_RDEV (1U << 5)
78 #define NFS_ATTR_FATTR_SIZE (1U << 6)
79 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
80 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
81 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
82 #define NFS_ATTR_FATTR_FSID (1U << 10)
83 #define NFS_ATTR_FATTR_FILEID (1U << 11)
84 #define NFS_ATTR_FATTR_ATIME (1U << 12)
85 #define NFS_ATTR_FATTR_MTIME (1U << 13)
86 #define NFS_ATTR_FATTR_CTIME (1U << 14)
87 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
88 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
89 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
90 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
91 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
92 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
93 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
94 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
95 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
96 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
98 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
99 | NFS_ATTR_FATTR_MODE \
100 | NFS_ATTR_FATTR_NLINK \
101 | NFS_ATTR_FATTR_OWNER \
102 | NFS_ATTR_FATTR_GROUP \
103 | NFS_ATTR_FATTR_RDEV \
104 | NFS_ATTR_FATTR_SIZE \
105 | NFS_ATTR_FATTR_FSID \
106 | NFS_ATTR_FATTR_FILEID \
107 | NFS_ATTR_FATTR_ATIME \
108 | NFS_ATTR_FATTR_MTIME \
109 | NFS_ATTR_FATTR_CTIME)
110 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
111 | NFS_ATTR_FATTR_BLOCKS_USED)
112 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
113 | NFS_ATTR_FATTR_SPACE_USED)
114 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
115 | NFS_ATTR_FATTR_SPACE_USED \
116 | NFS_ATTR_FATTR_CHANGE)
119 * Info on the file system
122 struct nfs_fattr *fattr; /* Post-op attributes */
123 __u32 rtmax; /* max. read transfer size */
124 __u32 rtpref; /* pref. read transfer size */
125 __u32 rtmult; /* reads should be multiple of this */
126 __u32 wtmax; /* max. write transfer size */
127 __u32 wtpref; /* pref. write transfer size */
128 __u32 wtmult; /* writes should be multiple of this */
129 __u32 dtpref; /* pref. readdir transfer size */
131 struct timespec time_delta; /* server time granularity */
132 __u32 lease_time; /* in seconds */
133 __u32 layouttype; /* supported pnfs layout driver */
134 __u32 blksize; /* preferred pnfs io block size */
138 struct nfs_fattr *fattr; /* Post-op attributes */
139 __u64 tbytes; /* total size in bytes */
140 __u64 fbytes; /* # of free bytes */
141 __u64 abytes; /* # of bytes available to user */
142 __u64 tfiles; /* # of files */
143 __u64 ffiles; /* # of free files */
144 __u64 afiles; /* # of files available to user */
148 __u32 tsize; /* Server transfer size */
149 __u32 bsize; /* Filesystem block size */
150 __u32 blocks; /* No. of "bsize" blocks on filesystem */
151 __u32 bfree; /* No. of free "bsize" blocks */
152 __u32 bavail; /* No. of available "bsize" blocks */
155 struct nfs_pathconf {
156 struct nfs_fattr *fattr; /* Post-op attributes */
157 __u32 max_link; /* max # of hard links */
158 __u32 max_namelen; /* max name length */
161 struct nfs4_change_info {
169 /* nfs41 sessions channel attributes */
170 struct nfs4_channel_attrs {
173 u32 max_resp_sz_cached;
178 /* nfs41 sessions slot seqid */
183 struct nfs4_sequence_args {
184 struct nfs4_session *sa_session;
189 struct nfs4_sequence_res {
190 struct nfs4_session *sr_session;
191 struct nfs4_slot *sr_slot; /* slot used to send request */
192 int sr_status; /* sequence operation status */
193 unsigned long sr_renewal_time;
197 struct nfs4_get_lease_time_args {
198 struct nfs4_sequence_args la_seq_args;
201 struct nfs4_get_lease_time_res {
202 struct nfs_fsinfo *lr_fsinfo;
203 struct nfs4_sequence_res lr_seq_res;
206 #define PNFS_LAYOUT_MAXSIZE 4096
208 struct nfs4_layoutdriver_data {
214 struct pnfs_layout_range {
220 struct nfs4_layoutget_args {
222 struct pnfs_layout_range range;
226 struct nfs_open_context *ctx;
227 struct nfs4_sequence_args seq_args;
228 nfs4_stateid stateid;
229 struct nfs4_layoutdriver_data layout;
232 struct nfs4_layoutget_res {
233 __u32 return_on_close;
234 struct pnfs_layout_range range;
236 nfs4_stateid stateid;
237 struct nfs4_sequence_res seq_res;
238 struct nfs4_layoutdriver_data *layoutp;
241 struct nfs4_layoutget {
242 struct nfs4_layoutget_args args;
243 struct nfs4_layoutget_res res;
244 struct pnfs_layout_segment **lsegpp;
248 struct nfs4_getdevicelist_args {
249 const struct nfs_fh *fh;
251 struct nfs4_sequence_args seq_args;
254 struct nfs4_getdevicelist_res {
255 struct pnfs_devicelist *devlist;
256 struct nfs4_sequence_res seq_res;
259 struct nfs4_getdeviceinfo_args {
260 struct pnfs_device *pdev;
261 struct nfs4_sequence_args seq_args;
264 struct nfs4_getdeviceinfo_res {
265 struct pnfs_device *pdev;
266 struct nfs4_sequence_res seq_res;
269 struct nfs4_layoutcommit_args {
270 nfs4_stateid stateid;
271 __u64 lastbytewritten;
274 struct nfs4_sequence_args seq_args;
277 struct nfs4_layoutcommit_res {
278 struct nfs_fattr *fattr;
279 const struct nfs_server *server;
280 struct nfs4_sequence_res seq_res;
284 struct nfs4_layoutcommit_data {
285 struct rpc_task task;
286 struct nfs_fattr fattr;
287 struct list_head lseg_list;
288 struct rpc_cred *cred;
289 struct nfs4_layoutcommit_args args;
290 struct nfs4_layoutcommit_res res;
293 struct nfs4_layoutreturn_args {
294 struct pnfs_layout_hdr *layout;
296 nfs4_stateid stateid;
298 struct nfs4_sequence_args seq_args;
301 struct nfs4_layoutreturn_res {
302 struct nfs4_sequence_res seq_res;
304 nfs4_stateid stateid;
307 struct nfs4_layoutreturn {
308 struct nfs4_layoutreturn_args args;
309 struct nfs4_layoutreturn_res res;
310 struct rpc_cred *cred;
311 struct nfs_client *clp;
315 struct stateowner_id {
321 * Arguments to the open call.
323 struct nfs_openargs {
324 const struct nfs_fh * fh;
325 struct nfs_seqid * seqid;
329 struct stateowner_id id;
332 struct iattr * attrs; /* UNCHECKED, GUARDED */
333 nfs4_verifier verifier; /* EXCLUSIVE */
335 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
336 fmode_t delegation_type; /* CLAIM_PREVIOUS */
338 const struct qstr * name;
339 const struct nfs_server *server; /* Needed for ID mapping */
341 const u32 * dir_bitmask;
343 struct nfs4_sequence_args seq_args;
347 nfs4_stateid stateid;
349 struct nfs4_change_info cinfo;
351 struct nfs_fattr * f_attr;
352 struct nfs_fattr * dir_attr;
353 struct nfs_seqid * seqid;
354 const struct nfs_server *server;
355 fmode_t delegation_type;
356 nfs4_stateid delegation;
359 __u32 attrset[NFS4_BITMAP_SIZE];
360 struct nfs4_string *owner;
361 struct nfs4_string *group_owner;
362 struct nfs4_sequence_res seq_res;
366 * Arguments to the open_confirm call.
368 struct nfs_open_confirmargs {
369 const struct nfs_fh * fh;
370 nfs4_stateid * stateid;
371 struct nfs_seqid * seqid;
374 struct nfs_open_confirmres {
375 nfs4_stateid stateid;
376 struct nfs_seqid * seqid;
380 * Arguments to the close call.
382 struct nfs_closeargs {
384 nfs4_stateid * stateid;
385 struct nfs_seqid * seqid;
388 struct nfs4_sequence_args seq_args;
391 struct nfs_closeres {
392 nfs4_stateid stateid;
393 struct nfs_fattr * fattr;
394 struct nfs_seqid * seqid;
395 const struct nfs_server *server;
396 struct nfs4_sequence_res seq_res;
399 * * Arguments to the lock,lockt, and locku call.
407 struct nfs_lock_args {
409 struct file_lock * fl;
410 struct nfs_seqid * lock_seqid;
411 nfs4_stateid * lock_stateid;
412 struct nfs_seqid * open_seqid;
413 nfs4_stateid * open_stateid;
414 struct nfs_lowner lock_owner;
415 unsigned char block : 1;
416 unsigned char reclaim : 1;
417 unsigned char new_lock_owner : 1;
418 struct nfs4_sequence_args seq_args;
421 struct nfs_lock_res {
422 nfs4_stateid stateid;
423 struct nfs_seqid * lock_seqid;
424 struct nfs_seqid * open_seqid;
425 struct nfs4_sequence_res seq_res;
428 struct nfs_locku_args {
430 struct file_lock * fl;
431 struct nfs_seqid * seqid;
432 nfs4_stateid * stateid;
433 struct nfs4_sequence_args seq_args;
436 struct nfs_locku_res {
437 nfs4_stateid stateid;
438 struct nfs_seqid * seqid;
439 struct nfs4_sequence_res seq_res;
442 struct nfs_lockt_args {
444 struct file_lock * fl;
445 struct nfs_lowner lock_owner;
446 struct nfs4_sequence_args seq_args;
449 struct nfs_lockt_res {
450 struct file_lock * denied; /* LOCK, LOCKT failed */
451 struct nfs4_sequence_res seq_res;
454 struct nfs_release_lockowner_args {
455 struct nfs_lowner lock_owner;
458 struct nfs4_delegreturnargs {
459 const struct nfs_fh *fhandle;
460 const nfs4_stateid *stateid;
462 struct nfs4_sequence_args seq_args;
465 struct nfs4_delegreturnres {
466 struct nfs_fattr * fattr;
467 const struct nfs_server *server;
468 struct nfs4_sequence_res seq_res;
472 * Arguments to the read call.
474 struct nfs_readargs {
476 struct nfs_open_context *context;
477 struct nfs_lock_context *lock_context;
481 struct page ** pages;
482 struct nfs4_sequence_args seq_args;
486 struct nfs_fattr * fattr;
489 struct nfs4_sequence_res seq_res;
493 * Arguments to the write call.
495 struct nfs_writeargs {
497 struct nfs_open_context *context;
498 struct nfs_lock_context *lock_context;
501 enum nfs3_stable_how stable;
503 struct page ** pages;
505 struct nfs4_sequence_args seq_args;
508 struct nfs_writeverf {
509 enum nfs3_stable_how committed;
513 struct nfs_writeres {
514 struct nfs_fattr * fattr;
515 struct nfs_writeverf * verf;
517 const struct nfs_server *server;
518 struct nfs4_sequence_res seq_res;
522 * Common arguments to the unlink call
524 struct nfs_removeargs {
525 const struct nfs_fh *fh;
528 struct nfs4_sequence_args seq_args;
531 struct nfs_removeres {
532 const struct nfs_server *server;
533 struct nfs_fattr *dir_attr;
534 struct nfs4_change_info cinfo;
535 struct nfs4_sequence_res seq_res;
539 * Common arguments to the rename call
541 struct nfs_renameargs {
542 const struct nfs_fh *old_dir;
543 const struct nfs_fh *new_dir;
544 const struct qstr *old_name;
545 const struct qstr *new_name;
547 struct nfs4_sequence_args seq_args;
550 struct nfs_renameres {
551 const struct nfs_server *server;
552 struct nfs4_change_info old_cinfo;
553 struct nfs_fattr *old_fattr;
554 struct nfs4_change_info new_cinfo;
555 struct nfs_fattr *new_fattr;
556 struct nfs4_sequence_res seq_res;
560 * Argument struct for decode_entry function
570 struct nfs_fattr * fattr;
571 unsigned char d_type;
572 struct nfs_server * server;
576 * The following types are for NFSv2 only.
578 struct nfs_sattrargs {
580 struct iattr * sattr;
583 struct nfs_diropargs {
589 struct nfs_createargs {
593 struct iattr * sattr;
596 struct nfs_setattrargs {
598 nfs4_stateid stateid;
600 const struct nfs_server * server; /* Needed for name mapping */
602 struct nfs4_sequence_args seq_args;
605 struct nfs_setaclargs {
608 unsigned int acl_pgbase;
609 struct page ** acl_pages;
610 struct nfs4_sequence_args seq_args;
613 struct nfs_setaclres {
614 struct nfs4_sequence_res seq_res;
617 struct nfs_getaclargs {
620 unsigned int acl_pgbase;
621 struct page ** acl_pages;
622 struct nfs4_sequence_args seq_args;
625 /* getxattr ACL interface flags */
626 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
627 struct nfs_getaclres {
629 size_t acl_data_offset;
631 struct page * acl_scratch;
632 struct nfs4_sequence_res seq_res;
635 struct nfs_setattrres {
636 struct nfs_fattr * fattr;
637 const struct nfs_server * server;
638 struct nfs4_sequence_res seq_res;
641 struct nfs_linkargs {
642 struct nfs_fh * fromfh;
643 struct nfs_fh * tofh;
648 struct nfs_symlinkargs {
649 struct nfs_fh * fromfh;
650 const char * fromname;
651 unsigned int fromlen;
652 struct page ** pages;
653 unsigned int pathlen;
654 struct iattr * sattr;
657 struct nfs_readdirargs {
661 struct page ** pages;
664 struct nfs3_getaclargs {
667 struct page ** pages;
670 struct nfs3_setaclargs {
671 struct inode * inode;
673 struct posix_acl * acl_access;
674 struct posix_acl * acl_default;
677 struct page ** pages;
682 struct nfs_fattr * fattr;
685 struct nfs_readlinkargs {
689 struct page ** pages;
692 struct nfs3_sattrargs {
694 struct iattr * sattr;
696 struct timespec guardtime;
699 struct nfs3_diropargs {
705 struct nfs3_accessargs {
710 struct nfs3_createargs {
714 struct iattr * sattr;
715 enum nfs3_createmode createmode;
719 struct nfs3_mkdirargs {
723 struct iattr * sattr;
726 struct nfs3_symlinkargs {
727 struct nfs_fh * fromfh;
728 const char * fromname;
729 unsigned int fromlen;
730 struct page ** pages;
731 unsigned int pathlen;
732 struct iattr * sattr;
735 struct nfs3_mknodargs {
739 enum nfs3_ftype type;
740 struct iattr * sattr;
744 struct nfs3_linkargs {
745 struct nfs_fh * fromfh;
746 struct nfs_fh * tofh;
751 struct nfs3_readdirargs {
757 struct page ** pages;
760 struct nfs3_diropres {
761 struct nfs_fattr * dir_attr;
763 struct nfs_fattr * fattr;
766 struct nfs3_accessres {
767 struct nfs_fattr * fattr;
771 struct nfs3_readlinkargs {
775 struct page ** pages;
778 struct nfs3_linkres {
779 struct nfs_fattr * dir_attr;
780 struct nfs_fattr * fattr;
783 struct nfs3_readdirres {
784 struct nfs_fattr * dir_attr;
789 struct nfs3_getaclres {
790 struct nfs_fattr * fattr;
792 unsigned int acl_access_count;
793 unsigned int acl_default_count;
794 struct posix_acl * acl_access;
795 struct posix_acl * acl_default;
800 typedef u64 clientid4;
802 struct nfs4_accessargs {
803 const struct nfs_fh * fh;
806 struct nfs4_sequence_args seq_args;
809 struct nfs4_accessres {
810 const struct nfs_server * server;
811 struct nfs_fattr * fattr;
814 struct nfs4_sequence_res seq_res;
817 struct nfs4_create_arg {
821 struct page ** pages;
823 } symlink; /* NF4LNK */
827 } device; /* NF4BLK, NF4CHR */
829 const struct qstr * name;
830 const struct nfs_server * server;
831 const struct iattr * attrs;
832 const struct nfs_fh * dir_fh;
834 struct nfs4_sequence_args seq_args;
837 struct nfs4_create_res {
838 const struct nfs_server * server;
840 struct nfs_fattr * fattr;
841 struct nfs4_change_info dir_cinfo;
842 struct nfs_fattr * dir_fattr;
843 struct nfs4_sequence_res seq_res;
846 struct nfs4_fsinfo_arg {
847 const struct nfs_fh * fh;
849 struct nfs4_sequence_args seq_args;
852 struct nfs4_fsinfo_res {
853 struct nfs_fsinfo *fsinfo;
854 struct nfs4_sequence_res seq_res;
857 struct nfs4_getattr_arg {
858 const struct nfs_fh * fh;
860 struct nfs4_sequence_args seq_args;
863 struct nfs4_getattr_res {
864 const struct nfs_server * server;
865 struct nfs_fattr * fattr;
866 struct nfs4_sequence_res seq_res;
869 struct nfs4_link_arg {
870 const struct nfs_fh * fh;
871 const struct nfs_fh * dir_fh;
872 const struct qstr * name;
874 struct nfs4_sequence_args seq_args;
877 struct nfs4_link_res {
878 const struct nfs_server * server;
879 struct nfs_fattr * fattr;
880 struct nfs4_change_info cinfo;
881 struct nfs_fattr * dir_attr;
882 struct nfs4_sequence_res seq_res;
886 struct nfs4_lookup_arg {
887 const struct nfs_fh * dir_fh;
888 const struct qstr * name;
890 struct nfs4_sequence_args seq_args;
893 struct nfs4_lookup_res {
894 const struct nfs_server * server;
895 struct nfs_fattr * fattr;
897 struct nfs4_sequence_res seq_res;
900 struct nfs4_lookup_root_arg {
902 struct nfs4_sequence_args seq_args;
905 struct nfs4_pathconf_arg {
906 const struct nfs_fh * fh;
908 struct nfs4_sequence_args seq_args;
911 struct nfs4_pathconf_res {
912 struct nfs_pathconf *pathconf;
913 struct nfs4_sequence_res seq_res;
916 struct nfs4_readdir_arg {
917 const struct nfs_fh * fh;
919 nfs4_verifier verifier;
921 struct page ** pages; /* zero-copy data */
922 unsigned int pgbase; /* zero-copy data */
925 struct nfs4_sequence_args seq_args;
928 struct nfs4_readdir_res {
929 nfs4_verifier verifier;
931 struct nfs4_sequence_res seq_res;
934 struct nfs4_readlink {
935 const struct nfs_fh * fh;
937 unsigned int pglen; /* zero-copy data */
938 struct page ** pages; /* zero-copy data */
939 struct nfs4_sequence_args seq_args;
942 struct nfs4_readlink_res {
943 struct nfs4_sequence_res seq_res;
946 #define NFS4_SETCLIENTID_NAMELEN (127)
947 struct nfs4_setclientid {
948 const nfs4_verifier * sc_verifier;
949 unsigned int sc_name_len;
950 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
952 unsigned int sc_netid_len;
953 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
954 unsigned int sc_uaddr_len;
955 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
959 struct nfs4_setclientid_res {
961 nfs4_verifier confirm;
964 struct nfs4_statfs_arg {
965 const struct nfs_fh * fh;
967 struct nfs4_sequence_args seq_args;
970 struct nfs4_statfs_res {
971 struct nfs_fsstat *fsstat;
972 struct nfs4_sequence_res seq_res;
975 struct nfs4_server_caps_arg {
976 struct nfs_fh *fhandle;
977 struct nfs4_sequence_args seq_args;
980 struct nfs4_server_caps_res {
986 struct nfs4_sequence_res seq_res;
989 #define NFS4_PATHNAME_MAXCOMPONENTS 512
990 struct nfs4_pathname {
991 unsigned int ncomponents;
992 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
995 #define NFS4_FS_LOCATION_MAXSERVERS 10
996 struct nfs4_fs_location {
997 unsigned int nservers;
998 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
999 struct nfs4_pathname rootpath;
1002 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1003 struct nfs4_fs_locations {
1004 struct nfs_fattr fattr;
1005 const struct nfs_server *server;
1006 struct nfs4_pathname fs_path;
1008 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1011 struct nfs4_fs_locations_arg {
1012 const struct nfs_fh *dir_fh;
1013 const struct qstr *name;
1016 struct nfs4_sequence_args seq_args;
1019 struct nfs4_fs_locations_res {
1020 struct nfs4_fs_locations *fs_locations;
1021 struct nfs4_sequence_res seq_res;
1024 struct nfs4_secinfo_oid {
1026 char data[GSS_OID_MAX_LEN];
1029 struct nfs4_secinfo_gss {
1030 struct nfs4_secinfo_oid sec_oid4;
1032 unsigned int service;
1035 struct nfs4_secinfo_flavor {
1036 unsigned int flavor;
1037 struct nfs4_secinfo_gss gss;
1040 struct nfs4_secinfo_flavors {
1041 unsigned int num_flavors;
1042 struct nfs4_secinfo_flavor flavors[0];
1045 struct nfs4_secinfo_arg {
1046 const struct nfs_fh *dir_fh;
1047 const struct qstr *name;
1048 struct nfs4_sequence_args seq_args;
1051 struct nfs4_secinfo_res {
1052 struct nfs4_secinfo_flavors *flavors;
1053 struct nfs4_sequence_res seq_res;
1056 #endif /* CONFIG_NFS_V4 */
1063 #ifdef CONFIG_NFS_V4_1
1064 #define NFS4_EXCHANGE_ID_LEN (48)
1065 struct nfs41_exchange_id_args {
1066 struct nfs_client *client;
1067 nfs4_verifier *verifier;
1068 unsigned int id_len;
1069 char id[NFS4_EXCHANGE_ID_LEN];
1073 struct server_owner {
1075 uint32_t major_id_sz;
1076 char major_id[NFS4_OPAQUE_LIMIT];
1079 struct server_scope {
1080 uint32_t server_scope_sz;
1081 char server_scope[NFS4_OPAQUE_LIMIT];
1084 struct nfs41_impl_id {
1085 char domain[NFS4_OPAQUE_LIMIT + 1];
1086 char name[NFS4_OPAQUE_LIMIT + 1];
1087 struct nfstime4 date;
1090 struct nfs41_exchange_id_res {
1091 struct nfs_client *client;
1093 struct server_scope *server_scope;
1094 struct nfs41_impl_id *impl_id;
1097 struct nfs41_create_session_args {
1098 struct nfs_client *client;
1100 uint32_t cb_program;
1101 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1102 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1105 struct nfs41_create_session_res {
1106 struct nfs_client *client;
1109 struct nfs41_reclaim_complete_args {
1110 /* In the future extend to include curr_fh for use with migration */
1111 unsigned char one_fs:1;
1112 struct nfs4_sequence_args seq_args;
1115 struct nfs41_reclaim_complete_res {
1116 struct nfs4_sequence_res seq_res;
1119 #define SECINFO_STYLE_CURRENT_FH 0
1120 #define SECINFO_STYLE_PARENT 1
1121 struct nfs41_secinfo_no_name_args {
1123 struct nfs4_sequence_args seq_args;
1126 struct nfs41_test_stateid_args {
1127 nfs4_stateid *stateid;
1128 struct nfs4_sequence_args seq_args;
1131 struct nfs41_test_stateid_res {
1132 unsigned int status;
1133 struct nfs4_sequence_res seq_res;
1136 struct nfs41_free_stateid_args {
1137 nfs4_stateid *stateid;
1138 struct nfs4_sequence_args seq_args;
1141 struct nfs41_free_stateid_res {
1142 unsigned int status;
1143 struct nfs4_sequence_res seq_res;
1146 #endif /* CONFIG_NFS_V4_1 */
1150 #define NFS_PAGEVEC_SIZE (8U)
1152 struct nfs_read_data {
1153 struct rpc_task task;
1154 struct inode *inode;
1155 struct rpc_cred *cred;
1156 struct nfs_fattr fattr; /* fattr storage */
1157 struct list_head pages; /* Coalesced read requests */
1158 struct list_head list; /* lists of struct nfs_read_data */
1159 struct nfs_page *req; /* multi ops per nfs_page */
1160 struct page **pagevec;
1161 unsigned int npages; /* Max length of pagevec */
1162 struct nfs_readargs args;
1163 struct nfs_readres res;
1164 unsigned long timestamp; /* For lease renewal */
1165 struct pnfs_layout_segment *lseg;
1166 struct nfs_client *ds_clp; /* pNFS data server */
1167 const struct rpc_call_ops *mds_ops;
1168 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1171 struct page *page_array[NFS_PAGEVEC_SIZE];
1174 struct nfs_write_data {
1175 struct rpc_task task;
1176 struct inode *inode;
1177 struct rpc_cred *cred;
1178 struct nfs_fattr fattr;
1179 struct nfs_writeverf verf;
1180 struct list_head pages; /* Coalesced requests we wish to flush */
1181 struct list_head list; /* lists of struct nfs_write_data */
1182 struct nfs_page *req; /* multi ops per nfs_page */
1183 struct page **pagevec;
1184 unsigned int npages; /* Max length of pagevec */
1185 struct nfs_writeargs args; /* argument struct */
1186 struct nfs_writeres res; /* result struct */
1187 struct pnfs_layout_segment *lseg;
1188 struct nfs_client *ds_clp; /* pNFS data server */
1189 int ds_commit_index;
1190 const struct rpc_call_ops *mds_ops;
1191 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1192 #ifdef CONFIG_NFS_V4
1193 unsigned long timestamp; /* For lease renewal */
1195 __u64 mds_offset; /* Filelayout dense stripe */
1197 struct page *page_array[NFS_PAGEVEC_SIZE];
1200 struct nfs_unlinkdata {
1201 struct hlist_node list;
1202 struct nfs_removeargs args;
1203 struct nfs_removeres res;
1205 struct rpc_cred *cred;
1206 struct nfs_fattr dir_attr;
1209 struct nfs_renamedata {
1210 struct nfs_renameargs args;
1211 struct nfs_renameres res;
1212 struct rpc_cred *cred;
1213 struct inode *old_dir;
1214 struct dentry *old_dentry;
1215 struct nfs_fattr old_fattr;
1216 struct inode *new_dir;
1217 struct dentry *new_dentry;
1218 struct nfs_fattr new_fattr;
1221 struct nfs_access_entry;
1226 * RPC procedure vector for NFSv2/NFSv3 demuxing
1228 struct nfs_rpc_ops {
1229 u32 version; /* Protocol version */
1230 const struct dentry_operations *dentry_ops;
1231 const struct inode_operations *dir_inode_ops;
1232 const struct inode_operations *file_inode_ops;
1233 const struct file_operations *file_ops;
1235 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1236 struct nfs_fsinfo *);
1237 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1238 struct nfs_fattr *);
1239 int (*setattr) (struct dentry *, struct nfs_fattr *,
1241 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1242 struct nfs_fh *, struct nfs_fattr *);
1243 int (*access) (struct inode *, struct nfs_access_entry *);
1244 int (*readlink)(struct inode *, struct page *, unsigned int,
1246 int (*create) (struct inode *, struct dentry *,
1247 struct iattr *, int, struct nfs_open_context *);
1248 int (*remove) (struct inode *, struct qstr *);
1249 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1250 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1251 int (*unlink_done) (struct rpc_task *, struct inode *);
1252 int (*rename) (struct inode *, struct qstr *,
1253 struct inode *, struct qstr *);
1254 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1255 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1256 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1257 int (*link) (struct inode *, struct inode *, struct qstr *);
1258 int (*symlink) (struct inode *, struct dentry *, struct page *,
1259 unsigned int, struct iattr *);
1260 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1261 int (*rmdir) (struct inode *, struct qstr *);
1262 int (*readdir) (struct dentry *, struct rpc_cred *,
1263 u64, struct page **, unsigned int, int);
1264 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1266 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1267 struct nfs_fsstat *);
1268 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1269 struct nfs_fsinfo *);
1270 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1271 struct nfs_pathconf *);
1272 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1273 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1274 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1275 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1276 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1277 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1278 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1279 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1280 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1281 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1282 int (*lock)(struct file *, int, struct file_lock *);
1283 int (*lock_check_bounds)(const struct file_lock *);
1284 void (*clear_acl_cache)(struct inode *);
1285 void (*close_context)(struct nfs_open_context *ctx, int);
1286 struct inode * (*open_context) (struct inode *dir,
1287 struct nfs_open_context *ctx,
1289 struct iattr *iattr);
1290 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1291 const char *, rpc_authflavor_t, int);
1292 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1296 * NFS_CALL(getattr, inode, (fattr));
1298 * NFS_PROTO(inode)->getattr(fattr);
1300 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1303 * Function vectors etc. for the NFS client
1305 extern const struct nfs_rpc_ops nfs_v2_clientops;
1306 extern const struct nfs_rpc_ops nfs_v3_clientops;
1307 extern const struct nfs_rpc_ops nfs_v4_clientops;
1308 extern const struct rpc_version nfs_version2;
1309 extern const struct rpc_version nfs_version3;
1310 extern const struct rpc_version nfs_version4;
1312 extern const struct rpc_version nfsacl_version3;
1313 extern const struct rpc_program nfsacl_program;