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 | NFS_ATTR_FATTR_CHANGE)
111 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
112 | NFS_ATTR_FATTR_BLOCKS_USED)
113 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
114 | NFS_ATTR_FATTR_SPACE_USED)
115 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
116 | NFS_ATTR_FATTR_SPACE_USED)
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 */
342 struct nfs4_sequence_args seq_args;
346 nfs4_stateid stateid;
348 struct nfs4_change_info cinfo;
350 struct nfs_fattr * f_attr;
351 struct nfs_seqid * seqid;
352 const struct nfs_server *server;
353 fmode_t delegation_type;
354 nfs4_stateid delegation;
357 __u32 attrset[NFS4_BITMAP_SIZE];
358 struct nfs4_string *owner;
359 struct nfs4_string *group_owner;
360 struct nfs4_sequence_res seq_res;
364 * Arguments to the open_confirm call.
366 struct nfs_open_confirmargs {
367 const struct nfs_fh * fh;
368 nfs4_stateid * stateid;
369 struct nfs_seqid * seqid;
372 struct nfs_open_confirmres {
373 nfs4_stateid stateid;
374 struct nfs_seqid * seqid;
378 * Arguments to the close call.
380 struct nfs_closeargs {
382 nfs4_stateid * stateid;
383 struct nfs_seqid * seqid;
386 struct nfs4_sequence_args seq_args;
389 struct nfs_closeres {
390 nfs4_stateid stateid;
391 struct nfs_fattr * fattr;
392 struct nfs_seqid * seqid;
393 const struct nfs_server *server;
394 struct nfs4_sequence_res seq_res;
397 * * Arguments to the lock,lockt, and locku call.
405 struct nfs_lock_args {
407 struct file_lock * fl;
408 struct nfs_seqid * lock_seqid;
409 nfs4_stateid * lock_stateid;
410 struct nfs_seqid * open_seqid;
411 nfs4_stateid * open_stateid;
412 struct nfs_lowner lock_owner;
413 unsigned char block : 1;
414 unsigned char reclaim : 1;
415 unsigned char new_lock_owner : 1;
416 struct nfs4_sequence_args seq_args;
419 struct nfs_lock_res {
420 nfs4_stateid stateid;
421 struct nfs_seqid * lock_seqid;
422 struct nfs_seqid * open_seqid;
423 struct nfs4_sequence_res seq_res;
426 struct nfs_locku_args {
428 struct file_lock * fl;
429 struct nfs_seqid * seqid;
430 nfs4_stateid * stateid;
431 struct nfs4_sequence_args seq_args;
434 struct nfs_locku_res {
435 nfs4_stateid stateid;
436 struct nfs_seqid * seqid;
437 struct nfs4_sequence_res seq_res;
440 struct nfs_lockt_args {
442 struct file_lock * fl;
443 struct nfs_lowner lock_owner;
444 struct nfs4_sequence_args seq_args;
447 struct nfs_lockt_res {
448 struct file_lock * denied; /* LOCK, LOCKT failed */
449 struct nfs4_sequence_res seq_res;
452 struct nfs_release_lockowner_args {
453 struct nfs_lowner lock_owner;
456 struct nfs4_delegreturnargs {
457 const struct nfs_fh *fhandle;
458 const nfs4_stateid *stateid;
460 struct nfs4_sequence_args seq_args;
463 struct nfs4_delegreturnres {
464 struct nfs_fattr * fattr;
465 const struct nfs_server *server;
466 struct nfs4_sequence_res seq_res;
470 * Arguments to the read call.
472 struct nfs_readargs {
474 struct nfs_open_context *context;
475 struct nfs_lock_context *lock_context;
479 struct page ** pages;
480 struct nfs4_sequence_args seq_args;
484 struct nfs_fattr * fattr;
487 struct nfs4_sequence_res seq_res;
491 * Arguments to the write call.
493 struct nfs_writeargs {
495 struct nfs_open_context *context;
496 struct nfs_lock_context *lock_context;
499 enum nfs3_stable_how stable;
501 struct page ** pages;
503 struct nfs4_sequence_args seq_args;
506 struct nfs_writeverf {
507 enum nfs3_stable_how committed;
511 struct nfs_writeres {
512 struct nfs_fattr * fattr;
513 struct nfs_writeverf * verf;
515 const struct nfs_server *server;
516 struct nfs4_sequence_res seq_res;
520 * Arguments to the commit call.
522 struct nfs_commitargs {
527 struct nfs4_sequence_args seq_args;
530 struct nfs_commitres {
531 struct nfs_fattr *fattr;
532 struct nfs_writeverf *verf;
533 const struct nfs_server *server;
534 struct nfs4_sequence_res seq_res;
538 * Common arguments to the unlink call
540 struct nfs_removeargs {
541 const struct nfs_fh *fh;
543 struct nfs4_sequence_args seq_args;
546 struct nfs_removeres {
547 const struct nfs_server *server;
548 struct nfs_fattr *dir_attr;
549 struct nfs4_change_info cinfo;
550 struct nfs4_sequence_res seq_res;
554 * Common arguments to the rename call
556 struct nfs_renameargs {
557 const struct nfs_fh *old_dir;
558 const struct nfs_fh *new_dir;
559 const struct qstr *old_name;
560 const struct qstr *new_name;
561 struct nfs4_sequence_args seq_args;
564 struct nfs_renameres {
565 const struct nfs_server *server;
566 struct nfs4_change_info old_cinfo;
567 struct nfs_fattr *old_fattr;
568 struct nfs4_change_info new_cinfo;
569 struct nfs_fattr *new_fattr;
570 struct nfs4_sequence_res seq_res;
574 * Argument struct for decode_entry function
584 struct nfs_fattr * fattr;
585 unsigned char d_type;
586 struct nfs_server * server;
590 * The following types are for NFSv2 only.
592 struct nfs_sattrargs {
594 struct iattr * sattr;
597 struct nfs_diropargs {
603 struct nfs_createargs {
607 struct iattr * sattr;
610 struct nfs_setattrargs {
612 nfs4_stateid stateid;
614 const struct nfs_server * server; /* Needed for name mapping */
616 struct nfs4_sequence_args seq_args;
619 struct nfs_setaclargs {
622 unsigned int acl_pgbase;
623 struct page ** acl_pages;
624 struct nfs4_sequence_args seq_args;
627 struct nfs_setaclres {
628 struct nfs4_sequence_res seq_res;
631 struct nfs_getaclargs {
634 unsigned int acl_pgbase;
635 struct page ** acl_pages;
636 struct nfs4_sequence_args seq_args;
639 /* getxattr ACL interface flags */
640 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
641 struct nfs_getaclres {
643 size_t acl_data_offset;
645 struct page * acl_scratch;
646 struct nfs4_sequence_res seq_res;
649 struct nfs_setattrres {
650 struct nfs_fattr * fattr;
651 const struct nfs_server * server;
652 struct nfs4_sequence_res seq_res;
655 struct nfs_linkargs {
656 struct nfs_fh * fromfh;
657 struct nfs_fh * tofh;
662 struct nfs_symlinkargs {
663 struct nfs_fh * fromfh;
664 const char * fromname;
665 unsigned int fromlen;
666 struct page ** pages;
667 unsigned int pathlen;
668 struct iattr * sattr;
671 struct nfs_readdirargs {
675 struct page ** pages;
678 struct nfs3_getaclargs {
681 struct page ** pages;
684 struct nfs3_setaclargs {
685 struct inode * inode;
687 struct posix_acl * acl_access;
688 struct posix_acl * acl_default;
691 struct page ** pages;
696 struct nfs_fattr * fattr;
699 struct nfs_readlinkargs {
703 struct page ** pages;
706 struct nfs3_sattrargs {
708 struct iattr * sattr;
710 struct timespec guardtime;
713 struct nfs3_diropargs {
719 struct nfs3_accessargs {
724 struct nfs3_createargs {
728 struct iattr * sattr;
729 enum nfs3_createmode createmode;
733 struct nfs3_mkdirargs {
737 struct iattr * sattr;
740 struct nfs3_symlinkargs {
741 struct nfs_fh * fromfh;
742 const char * fromname;
743 unsigned int fromlen;
744 struct page ** pages;
745 unsigned int pathlen;
746 struct iattr * sattr;
749 struct nfs3_mknodargs {
753 enum nfs3_ftype type;
754 struct iattr * sattr;
758 struct nfs3_linkargs {
759 struct nfs_fh * fromfh;
760 struct nfs_fh * tofh;
765 struct nfs3_readdirargs {
771 struct page ** pages;
774 struct nfs3_diropres {
775 struct nfs_fattr * dir_attr;
777 struct nfs_fattr * fattr;
780 struct nfs3_accessres {
781 struct nfs_fattr * fattr;
785 struct nfs3_readlinkargs {
789 struct page ** pages;
792 struct nfs3_linkres {
793 struct nfs_fattr * dir_attr;
794 struct nfs_fattr * fattr;
797 struct nfs3_readdirres {
798 struct nfs_fattr * dir_attr;
803 struct nfs3_getaclres {
804 struct nfs_fattr * fattr;
806 unsigned int acl_access_count;
807 unsigned int acl_default_count;
808 struct posix_acl * acl_access;
809 struct posix_acl * acl_default;
814 typedef u64 clientid4;
816 struct nfs4_accessargs {
817 const struct nfs_fh * fh;
820 struct nfs4_sequence_args seq_args;
823 struct nfs4_accessres {
824 const struct nfs_server * server;
825 struct nfs_fattr * fattr;
828 struct nfs4_sequence_res seq_res;
831 struct nfs4_create_arg {
835 struct page ** pages;
837 } symlink; /* NF4LNK */
841 } device; /* NF4BLK, NF4CHR */
843 const struct qstr * name;
844 const struct nfs_server * server;
845 const struct iattr * attrs;
846 const struct nfs_fh * dir_fh;
848 struct nfs4_sequence_args seq_args;
851 struct nfs4_create_res {
852 const struct nfs_server * server;
854 struct nfs_fattr * fattr;
855 struct nfs4_change_info dir_cinfo;
856 struct nfs4_sequence_res seq_res;
859 struct nfs4_fsinfo_arg {
860 const struct nfs_fh * fh;
862 struct nfs4_sequence_args seq_args;
865 struct nfs4_fsinfo_res {
866 struct nfs_fsinfo *fsinfo;
867 struct nfs4_sequence_res seq_res;
870 struct nfs4_getattr_arg {
871 const struct nfs_fh * fh;
873 struct nfs4_sequence_args seq_args;
876 struct nfs4_getattr_res {
877 const struct nfs_server * server;
878 struct nfs_fattr * fattr;
879 struct nfs4_sequence_res seq_res;
882 struct nfs4_link_arg {
883 const struct nfs_fh * fh;
884 const struct nfs_fh * dir_fh;
885 const struct qstr * name;
887 struct nfs4_sequence_args seq_args;
890 struct nfs4_link_res {
891 const struct nfs_server * server;
892 struct nfs_fattr * fattr;
893 struct nfs4_change_info cinfo;
894 struct nfs_fattr * dir_attr;
895 struct nfs4_sequence_res seq_res;
899 struct nfs4_lookup_arg {
900 const struct nfs_fh * dir_fh;
901 const struct qstr * name;
903 struct nfs4_sequence_args seq_args;
906 struct nfs4_lookup_res {
907 const struct nfs_server * server;
908 struct nfs_fattr * fattr;
910 struct nfs4_sequence_res seq_res;
913 struct nfs4_lookup_root_arg {
915 struct nfs4_sequence_args seq_args;
918 struct nfs4_pathconf_arg {
919 const struct nfs_fh * fh;
921 struct nfs4_sequence_args seq_args;
924 struct nfs4_pathconf_res {
925 struct nfs_pathconf *pathconf;
926 struct nfs4_sequence_res seq_res;
929 struct nfs4_readdir_arg {
930 const struct nfs_fh * fh;
932 nfs4_verifier verifier;
934 struct page ** pages; /* zero-copy data */
935 unsigned int pgbase; /* zero-copy data */
938 struct nfs4_sequence_args seq_args;
941 struct nfs4_readdir_res {
942 nfs4_verifier verifier;
944 struct nfs4_sequence_res seq_res;
947 struct nfs4_readlink {
948 const struct nfs_fh * fh;
950 unsigned int pglen; /* zero-copy data */
951 struct page ** pages; /* zero-copy data */
952 struct nfs4_sequence_args seq_args;
955 struct nfs4_readlink_res {
956 struct nfs4_sequence_res seq_res;
959 #define NFS4_SETCLIENTID_NAMELEN (127)
960 struct nfs4_setclientid {
961 const nfs4_verifier * sc_verifier;
962 unsigned int sc_name_len;
963 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
965 unsigned int sc_netid_len;
966 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
967 unsigned int sc_uaddr_len;
968 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
972 struct nfs4_setclientid_res {
974 nfs4_verifier confirm;
977 struct nfs4_statfs_arg {
978 const struct nfs_fh * fh;
980 struct nfs4_sequence_args seq_args;
983 struct nfs4_statfs_res {
984 struct nfs_fsstat *fsstat;
985 struct nfs4_sequence_res seq_res;
988 struct nfs4_server_caps_arg {
989 struct nfs_fh *fhandle;
990 struct nfs4_sequence_args seq_args;
993 struct nfs4_server_caps_res {
999 struct nfs4_sequence_res seq_res;
1002 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1003 struct nfs4_pathname {
1004 unsigned int ncomponents;
1005 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1008 #define NFS4_FS_LOCATION_MAXSERVERS 10
1009 struct nfs4_fs_location {
1010 unsigned int nservers;
1011 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1012 struct nfs4_pathname rootpath;
1015 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1016 struct nfs4_fs_locations {
1017 struct nfs_fattr fattr;
1018 const struct nfs_server *server;
1019 struct nfs4_pathname fs_path;
1021 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1024 struct nfs4_fs_locations_arg {
1025 const struct nfs_fh *dir_fh;
1026 const struct qstr *name;
1029 struct nfs4_sequence_args seq_args;
1032 struct nfs4_fs_locations_res {
1033 struct nfs4_fs_locations *fs_locations;
1034 struct nfs4_sequence_res seq_res;
1037 struct nfs4_secinfo_oid {
1039 char data[GSS_OID_MAX_LEN];
1042 struct nfs4_secinfo_gss {
1043 struct nfs4_secinfo_oid sec_oid4;
1045 unsigned int service;
1048 struct nfs4_secinfo_flavor {
1049 unsigned int flavor;
1050 struct nfs4_secinfo_gss gss;
1053 struct nfs4_secinfo_flavors {
1054 unsigned int num_flavors;
1055 struct nfs4_secinfo_flavor flavors[0];
1058 struct nfs4_secinfo_arg {
1059 const struct nfs_fh *dir_fh;
1060 const struct qstr *name;
1061 struct nfs4_sequence_args seq_args;
1064 struct nfs4_secinfo_res {
1065 struct nfs4_secinfo_flavors *flavors;
1066 struct nfs4_sequence_res seq_res;
1069 #endif /* CONFIG_NFS_V4 */
1076 #ifdef CONFIG_NFS_V4_1
1078 struct pnfs_commit_bucket {
1079 struct list_head written;
1080 struct list_head committing;
1081 struct pnfs_layout_segment *wlseg;
1082 struct pnfs_layout_segment *clseg;
1085 struct pnfs_ds_commit_info {
1089 struct pnfs_commit_bucket *buckets;
1092 #define NFS4_EXCHANGE_ID_LEN (48)
1093 struct nfs41_exchange_id_args {
1094 struct nfs_client *client;
1095 nfs4_verifier *verifier;
1096 unsigned int id_len;
1097 char id[NFS4_EXCHANGE_ID_LEN];
1101 struct server_owner {
1103 uint32_t major_id_sz;
1104 char major_id[NFS4_OPAQUE_LIMIT];
1107 struct nfs41_server_scope {
1108 uint32_t server_scope_sz;
1109 char server_scope[NFS4_OPAQUE_LIMIT];
1112 struct nfs41_impl_id {
1113 char domain[NFS4_OPAQUE_LIMIT + 1];
1114 char name[NFS4_OPAQUE_LIMIT + 1];
1115 struct nfstime4 date;
1118 struct nfs41_exchange_id_res {
1119 struct nfs_client *client;
1121 struct nfs41_server_scope *server_scope;
1122 struct nfs41_impl_id *impl_id;
1125 struct nfs41_create_session_args {
1126 struct nfs_client *client;
1128 uint32_t cb_program;
1129 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1130 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1133 struct nfs41_create_session_res {
1134 struct nfs_client *client;
1137 struct nfs41_reclaim_complete_args {
1138 /* In the future extend to include curr_fh for use with migration */
1139 unsigned char one_fs:1;
1140 struct nfs4_sequence_args seq_args;
1143 struct nfs41_reclaim_complete_res {
1144 struct nfs4_sequence_res seq_res;
1147 #define SECINFO_STYLE_CURRENT_FH 0
1148 #define SECINFO_STYLE_PARENT 1
1149 struct nfs41_secinfo_no_name_args {
1151 struct nfs4_sequence_args seq_args;
1154 struct nfs41_test_stateid_args {
1155 nfs4_stateid *stateid;
1156 struct nfs4_sequence_args seq_args;
1159 struct nfs41_test_stateid_res {
1160 unsigned int status;
1161 struct nfs4_sequence_res seq_res;
1164 struct nfs41_free_stateid_args {
1165 nfs4_stateid *stateid;
1166 struct nfs4_sequence_args seq_args;
1169 struct nfs41_free_stateid_res {
1170 unsigned int status;
1171 struct nfs4_sequence_res seq_res;
1176 struct pnfs_ds_commit_info {
1179 #endif /* CONFIG_NFS_V4_1 */
1183 #define NFS_PAGEVEC_SIZE (8U)
1185 struct nfs_page_array {
1186 struct page **pagevec;
1187 unsigned int npages; /* Max length of pagevec */
1188 struct page *page_array[NFS_PAGEVEC_SIZE];
1191 struct nfs_read_data {
1192 struct nfs_pgio_header *header;
1193 struct list_head list;
1194 struct rpc_task task;
1195 struct nfs_fattr fattr; /* fattr storage */
1196 struct nfs_readargs args;
1197 struct nfs_readres res;
1198 unsigned long timestamp; /* For lease renewal */
1199 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1201 struct nfs_page_array pages;
1202 struct nfs_client *ds_clp; /* pNFS data server */
1205 /* used as flag bits in nfs_pgio_header */
1207 NFS_IOHDR_ERROR = 0,
1210 NFS_IOHDR_NEED_COMMIT,
1211 NFS_IOHDR_NEED_RESCHED,
1214 struct nfs_pgio_header {
1215 struct inode *inode;
1216 struct rpc_cred *cred;
1217 struct list_head pages;
1218 struct list_head rpc_list;
1220 struct nfs_page *req;
1221 struct pnfs_layout_segment *lseg;
1223 const struct rpc_call_ops *mds_ops;
1224 void (*release) (struct nfs_pgio_header *hdr);
1225 const struct nfs_pgio_completion_ops *completion_ops;
1226 struct nfs_direct_req *dreq;
1228 /* fields protected by lock */
1230 int error; /* merge with pnfs_error */
1231 unsigned long good_bytes; /* boundary of good data */
1232 unsigned long flags;
1235 struct nfs_read_header {
1236 struct nfs_pgio_header header;
1237 struct nfs_read_data rpc_data;
1240 struct nfs_write_data {
1241 struct nfs_pgio_header *header;
1242 struct list_head list;
1243 struct rpc_task task;
1244 struct nfs_fattr fattr;
1245 struct nfs_writeverf verf;
1246 struct nfs_writeargs args; /* argument struct */
1247 struct nfs_writeres res; /* result struct */
1248 unsigned long timestamp; /* For lease renewal */
1249 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1250 __u64 mds_offset; /* Filelayout dense stripe */
1251 struct nfs_page_array pages;
1252 struct nfs_client *ds_clp; /* pNFS data server */
1255 struct nfs_write_header {
1256 struct nfs_pgio_header header;
1257 struct nfs_write_data rpc_data;
1260 struct nfs_mds_commit_info {
1262 unsigned long ncommit;
1263 struct list_head list;
1266 struct nfs_commit_data;
1268 struct nfs_commit_completion_ops {
1269 void (*error_cleanup) (struct nfs_inode *nfsi);
1270 void (*completion) (struct nfs_commit_data *data);
1273 struct nfs_commit_info {
1275 struct nfs_mds_commit_info *mds;
1276 struct pnfs_ds_commit_info *ds;
1277 struct nfs_direct_req *dreq; /* O_DIRECT request */
1278 const struct nfs_commit_completion_ops *completion_ops;
1281 struct nfs_commit_data {
1282 struct rpc_task task;
1283 struct inode *inode;
1284 struct rpc_cred *cred;
1285 struct nfs_fattr fattr;
1286 struct nfs_writeverf verf;
1287 struct list_head pages; /* Coalesced requests we wish to flush */
1288 struct list_head list; /* lists of struct nfs_write_data */
1289 struct nfs_direct_req *dreq; /* O_DIRECT request */
1290 struct nfs_commitargs args; /* argument struct */
1291 struct nfs_commitres res; /* result struct */
1292 struct nfs_open_context *context;
1293 struct pnfs_layout_segment *lseg;
1294 struct nfs_client *ds_clp; /* pNFS data server */
1295 int ds_commit_index;
1296 const struct rpc_call_ops *mds_ops;
1297 const struct nfs_commit_completion_ops *completion_ops;
1298 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1301 struct nfs_pgio_completion_ops {
1302 void (*error_cleanup)(struct list_head *head);
1303 void (*init_hdr)(struct nfs_pgio_header *hdr);
1304 void (*completion)(struct nfs_pgio_header *hdr);
1307 struct nfs_unlinkdata {
1308 struct hlist_node list;
1309 struct nfs_removeargs args;
1310 struct nfs_removeres res;
1312 struct rpc_cred *cred;
1313 struct nfs_fattr dir_attr;
1316 struct nfs_renamedata {
1317 struct nfs_renameargs args;
1318 struct nfs_renameres res;
1319 struct rpc_cred *cred;
1320 struct inode *old_dir;
1321 struct dentry *old_dentry;
1322 struct nfs_fattr old_fattr;
1323 struct inode *new_dir;
1324 struct dentry *new_dentry;
1325 struct nfs_fattr new_fattr;
1328 struct nfs_access_entry;
1333 * RPC procedure vector for NFSv2/NFSv3 demuxing
1335 struct nfs_rpc_ops {
1336 u32 version; /* Protocol version */
1337 const struct dentry_operations *dentry_ops;
1338 const struct inode_operations *dir_inode_ops;
1339 const struct inode_operations *file_inode_ops;
1340 const struct file_operations *file_ops;
1342 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1343 struct nfs_fsinfo *);
1344 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1345 struct nfs_fh *, struct nfs_fattr *);
1346 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1347 struct nfs_fattr *);
1348 int (*setattr) (struct dentry *, struct nfs_fattr *,
1350 int (*lookup) (struct inode *, struct qstr *,
1351 struct nfs_fh *, struct nfs_fattr *);
1352 int (*access) (struct inode *, struct nfs_access_entry *);
1353 int (*readlink)(struct inode *, struct page *, unsigned int,
1355 int (*create) (struct inode *, struct dentry *,
1356 struct iattr *, int, struct nfs_open_context *);
1357 int (*remove) (struct inode *, struct qstr *);
1358 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1359 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1360 int (*unlink_done) (struct rpc_task *, struct inode *);
1361 int (*rename) (struct inode *, struct qstr *,
1362 struct inode *, struct qstr *);
1363 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1364 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1365 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1366 int (*link) (struct inode *, struct inode *, struct qstr *);
1367 int (*symlink) (struct inode *, struct dentry *, struct page *,
1368 unsigned int, struct iattr *);
1369 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1370 int (*rmdir) (struct inode *, struct qstr *);
1371 int (*readdir) (struct dentry *, struct rpc_cred *,
1372 u64, struct page **, unsigned int, int);
1373 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1375 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1376 struct nfs_fsstat *);
1377 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1378 struct nfs_fsinfo *);
1379 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1380 struct nfs_pathconf *);
1381 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1382 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1383 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1384 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1385 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1386 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1387 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1388 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1389 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1390 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1391 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1392 int (*lock)(struct file *, int, struct file_lock *);
1393 int (*lock_check_bounds)(const struct file_lock *);
1394 void (*clear_acl_cache)(struct inode *);
1395 void (*close_context)(struct nfs_open_context *ctx, int);
1396 struct inode * (*open_context) (struct inode *dir,
1397 struct nfs_open_context *ctx,
1399 struct iattr *iattr);
1401 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1402 const char *, rpc_authflavor_t);
1406 * NFS_CALL(getattr, inode, (fattr));
1408 * NFS_PROTO(inode)->getattr(fattr);
1410 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1413 * Function vectors etc. for the NFS client
1415 extern const struct nfs_rpc_ops nfs_v2_clientops;
1416 extern const struct nfs_rpc_ops nfs_v3_clientops;
1417 extern const struct nfs_rpc_ops nfs_v4_clientops;
1418 extern const struct rpc_version nfs_version2;
1419 extern const struct rpc_version nfs_version3;
1420 extern const struct rpc_version nfs_version4;
1422 extern const struct rpc_version nfsacl_version3;
1423 extern const struct rpc_program nfsacl_program;