1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/nfsacl.h>
5 #include <linux/nfs3.h>
6 #include <linux/sunrpc/gss_api.h>
9 * To change the maximum rsize and wsize supported by the NFS client, adjust
10 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
11 * support a megabyte or more. The default is left at 4096 bytes, which is
12 * reasonable for NFS over UDP.
14 #define NFS_MAX_FILE_IO_SIZE (1048576U)
15 #define NFS_DEF_FILE_IO_SIZE (4096U)
16 #define NFS_MIN_FILE_IO_SIZE (1024U)
18 /* Forward declaration for NFS v3 */
19 struct nfs4_secinfo_flavors;
27 * Helper for checking equality between 2 fsids.
29 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
31 return a->major == b->major && a->minor == b->minor;
35 unsigned int valid; /* which fields are valid */
53 __u64 mounted_on_fileid;
54 struct timespec atime;
55 struct timespec mtime;
56 struct timespec ctime;
57 __u64 change_attr; /* NFSv4 change attribute */
58 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
59 __u64 pre_size; /* pre_op_attr.size */
60 struct timespec pre_mtime; /* pre_op_attr.mtime */
61 struct timespec pre_ctime; /* pre_op_attr.ctime */
62 unsigned long time_start;
63 unsigned long gencount;
66 #define NFS_ATTR_FATTR_TYPE (1U << 0)
67 #define NFS_ATTR_FATTR_MODE (1U << 1)
68 #define NFS_ATTR_FATTR_NLINK (1U << 2)
69 #define NFS_ATTR_FATTR_OWNER (1U << 3)
70 #define NFS_ATTR_FATTR_GROUP (1U << 4)
71 #define NFS_ATTR_FATTR_RDEV (1U << 5)
72 #define NFS_ATTR_FATTR_SIZE (1U << 6)
73 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
74 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
75 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
76 #define NFS_ATTR_FATTR_FSID (1U << 10)
77 #define NFS_ATTR_FATTR_FILEID (1U << 11)
78 #define NFS_ATTR_FATTR_ATIME (1U << 12)
79 #define NFS_ATTR_FATTR_MTIME (1U << 13)
80 #define NFS_ATTR_FATTR_CTIME (1U << 14)
81 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
82 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
83 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
84 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
85 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
86 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */
87 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21)
89 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
90 | NFS_ATTR_FATTR_MODE \
91 | NFS_ATTR_FATTR_NLINK \
92 | NFS_ATTR_FATTR_OWNER \
93 | NFS_ATTR_FATTR_GROUP \
94 | NFS_ATTR_FATTR_RDEV \
95 | NFS_ATTR_FATTR_SIZE \
96 | NFS_ATTR_FATTR_FSID \
97 | NFS_ATTR_FATTR_FILEID \
98 | NFS_ATTR_FATTR_ATIME \
99 | NFS_ATTR_FATTR_MTIME \
100 | NFS_ATTR_FATTR_CTIME)
101 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
102 | NFS_ATTR_FATTR_BLOCKS_USED)
103 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
104 | NFS_ATTR_FATTR_SPACE_USED)
105 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
106 | NFS_ATTR_FATTR_SPACE_USED \
107 | NFS_ATTR_FATTR_CHANGE)
110 * Info on the file system
113 struct nfs_fattr *fattr; /* Post-op attributes */
114 __u32 rtmax; /* max. read transfer size */
115 __u32 rtpref; /* pref. read transfer size */
116 __u32 rtmult; /* reads should be multiple of this */
117 __u32 wtmax; /* max. write transfer size */
118 __u32 wtpref; /* pref. write transfer size */
119 __u32 wtmult; /* writes should be multiple of this */
120 __u32 dtpref; /* pref. readdir transfer size */
122 struct timespec time_delta; /* server time granularity */
123 __u32 lease_time; /* in seconds */
124 __u32 layouttype; /* supported pnfs layout driver */
128 struct nfs_fattr *fattr; /* Post-op attributes */
129 __u64 tbytes; /* total size in bytes */
130 __u64 fbytes; /* # of free bytes */
131 __u64 abytes; /* # of bytes available to user */
132 __u64 tfiles; /* # of files */
133 __u64 ffiles; /* # of free files */
134 __u64 afiles; /* # of files available to user */
138 __u32 tsize; /* Server transfer size */
139 __u32 bsize; /* Filesystem block size */
140 __u32 blocks; /* No. of "bsize" blocks on filesystem */
141 __u32 bfree; /* No. of free "bsize" blocks */
142 __u32 bavail; /* No. of available "bsize" blocks */
145 struct nfs_pathconf {
146 struct nfs_fattr *fattr; /* Post-op attributes */
147 __u32 max_link; /* max # of hard links */
148 __u32 max_namelen; /* max name length */
151 struct nfs4_change_info {
159 /* nfs41 sessions channel attributes */
160 struct nfs4_channel_attrs {
163 u32 max_resp_sz_cached;
168 /* nfs41 sessions slot seqid */
173 struct nfs4_sequence_args {
174 struct nfs4_session *sa_session;
179 struct nfs4_sequence_res {
180 struct nfs4_session *sr_session;
181 struct nfs4_slot *sr_slot; /* slot used to send request */
182 int sr_status; /* sequence operation status */
183 unsigned long sr_renewal_time;
187 struct nfs4_get_lease_time_args {
188 struct nfs4_sequence_args la_seq_args;
191 struct nfs4_get_lease_time_res {
192 struct nfs_fsinfo *lr_fsinfo;
193 struct nfs4_sequence_res lr_seq_res;
196 #define PNFS_LAYOUT_MAXSIZE 4096
198 struct nfs4_layoutdriver_data {
204 struct pnfs_layout_range {
210 struct nfs4_layoutget_args {
212 struct pnfs_layout_range range;
216 struct nfs_open_context *ctx;
217 struct nfs4_sequence_args seq_args;
218 nfs4_stateid stateid;
219 struct nfs4_layoutdriver_data layout;
222 struct nfs4_layoutget_res {
223 __u32 return_on_close;
224 struct pnfs_layout_range range;
226 nfs4_stateid stateid;
227 struct nfs4_sequence_res seq_res;
228 struct nfs4_layoutdriver_data *layoutp;
231 struct nfs4_layoutget {
232 struct nfs4_layoutget_args args;
233 struct nfs4_layoutget_res res;
234 struct pnfs_layout_segment **lsegpp;
238 struct nfs4_getdeviceinfo_args {
239 struct pnfs_device *pdev;
240 struct nfs4_sequence_args seq_args;
243 struct nfs4_getdeviceinfo_res {
244 struct pnfs_device *pdev;
245 struct nfs4_sequence_res seq_res;
248 struct nfs4_layoutcommit_args {
249 nfs4_stateid stateid;
250 __u64 lastbytewritten;
253 struct nfs4_sequence_args seq_args;
256 struct nfs4_layoutcommit_res {
257 struct nfs_fattr *fattr;
258 const struct nfs_server *server;
259 struct nfs4_sequence_res seq_res;
262 struct nfs4_layoutcommit_data {
263 struct rpc_task task;
264 struct nfs_fattr fattr;
265 struct list_head lseg_list;
266 struct rpc_cred *cred;
267 struct nfs4_layoutcommit_args args;
268 struct nfs4_layoutcommit_res res;
271 struct nfs4_layoutreturn_args {
272 struct pnfs_layout_hdr *layout;
274 nfs4_stateid stateid;
276 struct nfs4_sequence_args seq_args;
279 struct nfs4_layoutreturn_res {
280 struct nfs4_sequence_res seq_res;
282 nfs4_stateid stateid;
285 struct nfs4_layoutreturn {
286 struct nfs4_layoutreturn_args args;
287 struct nfs4_layoutreturn_res res;
288 struct rpc_cred *cred;
289 struct nfs_client *clp;
294 * Arguments to the open call.
296 struct nfs_openargs {
297 const struct nfs_fh * fh;
298 struct nfs_seqid * seqid;
305 struct iattr * attrs; /* UNCHECKED, GUARDED */
306 nfs4_verifier verifier; /* EXCLUSIVE */
308 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
309 fmode_t delegation_type; /* CLAIM_PREVIOUS */
311 const struct qstr * name;
312 const struct nfs_server *server; /* Needed for ID mapping */
315 struct nfs4_sequence_args seq_args;
319 nfs4_stateid stateid;
321 struct nfs4_change_info cinfo;
323 struct nfs_fattr * f_attr;
324 struct nfs_fattr * dir_attr;
325 struct nfs_seqid * seqid;
326 const struct nfs_server *server;
327 fmode_t delegation_type;
328 nfs4_stateid delegation;
331 __u32 attrset[NFS4_BITMAP_SIZE];
332 struct nfs4_sequence_res seq_res;
336 * Arguments to the open_confirm call.
338 struct nfs_open_confirmargs {
339 const struct nfs_fh * fh;
340 nfs4_stateid * stateid;
341 struct nfs_seqid * seqid;
344 struct nfs_open_confirmres {
345 nfs4_stateid stateid;
346 struct nfs_seqid * seqid;
350 * Arguments to the close call.
352 struct nfs_closeargs {
354 nfs4_stateid * stateid;
355 struct nfs_seqid * seqid;
358 struct nfs4_sequence_args seq_args;
361 struct nfs_closeres {
362 nfs4_stateid stateid;
363 struct nfs_fattr * fattr;
364 struct nfs_seqid * seqid;
365 const struct nfs_server *server;
366 struct nfs4_sequence_res seq_res;
369 * * Arguments to the lock,lockt, and locku call.
377 struct nfs_lock_args {
379 struct file_lock * fl;
380 struct nfs_seqid * lock_seqid;
381 nfs4_stateid * lock_stateid;
382 struct nfs_seqid * open_seqid;
383 nfs4_stateid * open_stateid;
384 struct nfs_lowner lock_owner;
385 unsigned char block : 1;
386 unsigned char reclaim : 1;
387 unsigned char new_lock_owner : 1;
388 struct nfs4_sequence_args seq_args;
391 struct nfs_lock_res {
392 nfs4_stateid stateid;
393 struct nfs_seqid * lock_seqid;
394 struct nfs_seqid * open_seqid;
395 struct nfs4_sequence_res seq_res;
398 struct nfs_locku_args {
400 struct file_lock * fl;
401 struct nfs_seqid * seqid;
402 nfs4_stateid * stateid;
403 struct nfs4_sequence_args seq_args;
406 struct nfs_locku_res {
407 nfs4_stateid stateid;
408 struct nfs_seqid * seqid;
409 struct nfs4_sequence_res seq_res;
412 struct nfs_lockt_args {
414 struct file_lock * fl;
415 struct nfs_lowner lock_owner;
416 struct nfs4_sequence_args seq_args;
419 struct nfs_lockt_res {
420 struct file_lock * denied; /* LOCK, LOCKT failed */
421 struct nfs4_sequence_res seq_res;
424 struct nfs_release_lockowner_args {
425 struct nfs_lowner lock_owner;
428 struct nfs4_delegreturnargs {
429 const struct nfs_fh *fhandle;
430 const nfs4_stateid *stateid;
432 struct nfs4_sequence_args seq_args;
435 struct nfs4_delegreturnres {
436 struct nfs_fattr * fattr;
437 const struct nfs_server *server;
438 struct nfs4_sequence_res seq_res;
442 * Arguments to the read call.
444 struct nfs_readargs {
446 struct nfs_open_context *context;
447 struct nfs_lock_context *lock_context;
451 struct page ** pages;
452 struct nfs4_sequence_args seq_args;
456 struct nfs_fattr * fattr;
459 struct nfs4_sequence_res seq_res;
463 * Arguments to the write call.
465 struct nfs_writeargs {
467 struct nfs_open_context *context;
468 struct nfs_lock_context *lock_context;
471 enum nfs3_stable_how stable;
473 struct page ** pages;
475 struct nfs4_sequence_args seq_args;
478 struct nfs_writeverf {
479 enum nfs3_stable_how committed;
483 struct nfs_writeres {
484 struct nfs_fattr * fattr;
485 struct nfs_writeverf * verf;
487 const struct nfs_server *server;
488 struct nfs4_sequence_res seq_res;
492 * Common arguments to the unlink call
494 struct nfs_removeargs {
495 const struct nfs_fh *fh;
498 struct nfs4_sequence_args seq_args;
501 struct nfs_removeres {
502 const struct nfs_server *server;
503 struct nfs_fattr *dir_attr;
504 struct nfs4_change_info cinfo;
505 struct nfs4_sequence_res seq_res;
509 * Common arguments to the rename call
511 struct nfs_renameargs {
512 const struct nfs_fh *old_dir;
513 const struct nfs_fh *new_dir;
514 const struct qstr *old_name;
515 const struct qstr *new_name;
517 struct nfs4_sequence_args seq_args;
520 struct nfs_renameres {
521 const struct nfs_server *server;
522 struct nfs4_change_info old_cinfo;
523 struct nfs_fattr *old_fattr;
524 struct nfs4_change_info new_cinfo;
525 struct nfs_fattr *new_fattr;
526 struct nfs4_sequence_res seq_res;
530 * Argument struct for decode_entry function
540 struct nfs_fattr * fattr;
541 unsigned char d_type;
542 struct nfs_server * server;
546 * The following types are for NFSv2 only.
548 struct nfs_sattrargs {
550 struct iattr * sattr;
553 struct nfs_diropargs {
559 struct nfs_createargs {
563 struct iattr * sattr;
566 struct nfs_setattrargs {
568 nfs4_stateid stateid;
570 const struct nfs_server * server; /* Needed for name mapping */
572 struct nfs4_sequence_args seq_args;
575 struct nfs_setaclargs {
578 unsigned int acl_pgbase;
579 struct page ** acl_pages;
580 struct nfs4_sequence_args seq_args;
583 struct nfs_setaclres {
584 struct nfs4_sequence_res seq_res;
587 struct nfs_getaclargs {
590 unsigned int acl_pgbase;
591 struct page ** acl_pages;
592 struct nfs4_sequence_args seq_args;
595 struct nfs_getaclres {
597 struct nfs4_sequence_res seq_res;
600 struct nfs_setattrres {
601 struct nfs_fattr * fattr;
602 const struct nfs_server * server;
603 struct nfs4_sequence_res seq_res;
606 struct nfs_linkargs {
607 struct nfs_fh * fromfh;
608 struct nfs_fh * tofh;
613 struct nfs_symlinkargs {
614 struct nfs_fh * fromfh;
615 const char * fromname;
616 unsigned int fromlen;
617 struct page ** pages;
618 unsigned int pathlen;
619 struct iattr * sattr;
622 struct nfs_readdirargs {
626 struct page ** pages;
629 struct nfs3_getaclargs {
632 struct page ** pages;
635 struct nfs3_setaclargs {
636 struct inode * inode;
638 struct posix_acl * acl_access;
639 struct posix_acl * acl_default;
642 struct page ** pages;
647 struct nfs_fattr * fattr;
650 struct nfs_readlinkargs {
654 struct page ** pages;
657 struct nfs3_sattrargs {
659 struct iattr * sattr;
661 struct timespec guardtime;
664 struct nfs3_diropargs {
670 struct nfs3_accessargs {
675 struct nfs3_createargs {
679 struct iattr * sattr;
680 enum nfs3_createmode createmode;
684 struct nfs3_mkdirargs {
688 struct iattr * sattr;
691 struct nfs3_symlinkargs {
692 struct nfs_fh * fromfh;
693 const char * fromname;
694 unsigned int fromlen;
695 struct page ** pages;
696 unsigned int pathlen;
697 struct iattr * sattr;
700 struct nfs3_mknodargs {
704 enum nfs3_ftype type;
705 struct iattr * sattr;
709 struct nfs3_linkargs {
710 struct nfs_fh * fromfh;
711 struct nfs_fh * tofh;
716 struct nfs3_readdirargs {
722 struct page ** pages;
725 struct nfs3_diropres {
726 struct nfs_fattr * dir_attr;
728 struct nfs_fattr * fattr;
731 struct nfs3_accessres {
732 struct nfs_fattr * fattr;
736 struct nfs3_readlinkargs {
740 struct page ** pages;
743 struct nfs3_linkres {
744 struct nfs_fattr * dir_attr;
745 struct nfs_fattr * fattr;
748 struct nfs3_readdirres {
749 struct nfs_fattr * dir_attr;
754 struct nfs3_getaclres {
755 struct nfs_fattr * fattr;
757 unsigned int acl_access_count;
758 unsigned int acl_default_count;
759 struct posix_acl * acl_access;
760 struct posix_acl * acl_default;
765 typedef u64 clientid4;
767 struct nfs4_accessargs {
768 const struct nfs_fh * fh;
771 struct nfs4_sequence_args seq_args;
774 struct nfs4_accessres {
775 const struct nfs_server * server;
776 struct nfs_fattr * fattr;
779 struct nfs4_sequence_res seq_res;
782 struct nfs4_create_arg {
786 struct page ** pages;
788 } symlink; /* NF4LNK */
792 } device; /* NF4BLK, NF4CHR */
794 const struct qstr * name;
795 const struct nfs_server * server;
796 const struct iattr * attrs;
797 const struct nfs_fh * dir_fh;
799 struct nfs4_sequence_args seq_args;
802 struct nfs4_create_res {
803 const struct nfs_server * server;
805 struct nfs_fattr * fattr;
806 struct nfs4_change_info dir_cinfo;
807 struct nfs_fattr * dir_fattr;
808 struct nfs4_sequence_res seq_res;
811 struct nfs4_fsinfo_arg {
812 const struct nfs_fh * fh;
814 struct nfs4_sequence_args seq_args;
817 struct nfs4_fsinfo_res {
818 struct nfs_fsinfo *fsinfo;
819 struct nfs4_sequence_res seq_res;
822 struct nfs4_getattr_arg {
823 const struct nfs_fh * fh;
825 struct nfs4_sequence_args seq_args;
828 struct nfs4_getattr_res {
829 const struct nfs_server * server;
830 struct nfs_fattr * fattr;
831 struct nfs4_sequence_res seq_res;
834 struct nfs4_link_arg {
835 const struct nfs_fh * fh;
836 const struct nfs_fh * dir_fh;
837 const struct qstr * name;
839 struct nfs4_sequence_args seq_args;
842 struct nfs4_link_res {
843 const struct nfs_server * server;
844 struct nfs_fattr * fattr;
845 struct nfs4_change_info cinfo;
846 struct nfs_fattr * dir_attr;
847 struct nfs4_sequence_res seq_res;
851 struct nfs4_lookup_arg {
852 const struct nfs_fh * dir_fh;
853 const struct qstr * name;
855 struct nfs4_sequence_args seq_args;
858 struct nfs4_lookup_res {
859 const struct nfs_server * server;
860 struct nfs_fattr * fattr;
862 struct nfs4_sequence_res seq_res;
865 struct nfs4_lookup_root_arg {
867 struct nfs4_sequence_args seq_args;
870 struct nfs4_pathconf_arg {
871 const struct nfs_fh * fh;
873 struct nfs4_sequence_args seq_args;
876 struct nfs4_pathconf_res {
877 struct nfs_pathconf *pathconf;
878 struct nfs4_sequence_res seq_res;
881 struct nfs4_readdir_arg {
882 const struct nfs_fh * fh;
884 nfs4_verifier verifier;
886 struct page ** pages; /* zero-copy data */
887 unsigned int pgbase; /* zero-copy data */
890 struct nfs4_sequence_args seq_args;
893 struct nfs4_readdir_res {
894 nfs4_verifier verifier;
896 struct nfs4_sequence_res seq_res;
899 struct nfs4_readlink {
900 const struct nfs_fh * fh;
902 unsigned int pglen; /* zero-copy data */
903 struct page ** pages; /* zero-copy data */
904 struct nfs4_sequence_args seq_args;
907 struct nfs4_readlink_res {
908 struct nfs4_sequence_res seq_res;
911 #define NFS4_SETCLIENTID_NAMELEN (127)
912 struct nfs4_setclientid {
913 const nfs4_verifier * sc_verifier;
914 unsigned int sc_name_len;
915 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
917 unsigned int sc_netid_len;
918 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
919 unsigned int sc_uaddr_len;
920 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
924 struct nfs4_setclientid_res {
926 nfs4_verifier confirm;
929 struct nfs4_statfs_arg {
930 const struct nfs_fh * fh;
932 struct nfs4_sequence_args seq_args;
935 struct nfs4_statfs_res {
936 struct nfs_fsstat *fsstat;
937 struct nfs4_sequence_res seq_res;
940 struct nfs4_server_caps_arg {
941 struct nfs_fh *fhandle;
942 struct nfs4_sequence_args seq_args;
945 struct nfs4_server_caps_res {
950 struct nfs4_sequence_res seq_res;
958 #define NFS4_PATHNAME_MAXCOMPONENTS 512
959 struct nfs4_pathname {
960 unsigned int ncomponents;
961 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
964 #define NFS4_FS_LOCATION_MAXSERVERS 10
965 struct nfs4_fs_location {
966 unsigned int nservers;
967 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
968 struct nfs4_pathname rootpath;
971 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
972 struct nfs4_fs_locations {
973 struct nfs_fattr fattr;
974 const struct nfs_server *server;
975 struct nfs4_pathname fs_path;
977 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
980 struct nfs4_fs_locations_arg {
981 const struct nfs_fh *dir_fh;
982 const struct qstr *name;
985 struct nfs4_sequence_args seq_args;
988 struct nfs4_fs_locations_res {
989 struct nfs4_fs_locations *fs_locations;
990 struct nfs4_sequence_res seq_res;
993 struct nfs4_secinfo_oid {
995 char data[GSS_OID_MAX_LEN];
998 struct nfs4_secinfo_gss {
999 struct nfs4_secinfo_oid sec_oid4;
1001 unsigned int service;
1004 struct nfs4_secinfo_flavor {
1005 unsigned int flavor;
1006 struct nfs4_secinfo_gss gss;
1009 struct nfs4_secinfo_flavors {
1010 unsigned int num_flavors;
1011 struct nfs4_secinfo_flavor flavors[0];
1014 struct nfs4_secinfo_arg {
1015 const struct nfs_fh *dir_fh;
1016 const struct qstr *name;
1017 struct nfs4_sequence_args seq_args;
1020 struct nfs4_secinfo_res {
1021 struct nfs4_secinfo_flavors *flavors;
1022 struct nfs4_sequence_res seq_res;
1025 #endif /* CONFIG_NFS_V4 */
1032 #ifdef CONFIG_NFS_V4_1
1033 struct nfs_impl_id4 {
1038 struct nfstime4 date;
1041 #define NFS4_EXCHANGE_ID_LEN (48)
1042 struct nfs41_exchange_id_args {
1043 struct nfs_client *client;
1044 nfs4_verifier *verifier;
1045 unsigned int id_len;
1046 char id[NFS4_EXCHANGE_ID_LEN];
1050 struct server_owner {
1052 uint32_t major_id_sz;
1053 char major_id[NFS4_OPAQUE_LIMIT];
1056 struct server_scope {
1057 uint32_t server_scope_sz;
1058 char server_scope[NFS4_OPAQUE_LIMIT];
1061 struct nfs41_exchange_id_res {
1062 struct nfs_client *client;
1064 struct server_scope *server_scope;
1067 struct nfs41_create_session_args {
1068 struct nfs_client *client;
1070 uint32_t cb_program;
1071 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1072 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1075 struct nfs41_create_session_res {
1076 struct nfs_client *client;
1079 struct nfs41_reclaim_complete_args {
1080 /* In the future extend to include curr_fh for use with migration */
1081 unsigned char one_fs:1;
1082 struct nfs4_sequence_args seq_args;
1085 struct nfs41_reclaim_complete_res {
1086 struct nfs4_sequence_res seq_res;
1089 #define SECINFO_STYLE_CURRENT_FH 0
1090 #define SECINFO_STYLE_PARENT 1
1091 struct nfs41_secinfo_no_name_args {
1093 struct nfs4_sequence_args seq_args;
1096 struct nfs41_test_stateid_args {
1097 nfs4_stateid *stateid;
1098 struct nfs4_sequence_args seq_args;
1101 struct nfs41_test_stateid_res {
1102 unsigned int status;
1103 struct nfs4_sequence_res seq_res;
1106 struct nfs41_free_stateid_args {
1107 nfs4_stateid *stateid;
1108 struct nfs4_sequence_args seq_args;
1111 struct nfs41_free_stateid_res {
1112 unsigned int status;
1113 struct nfs4_sequence_res seq_res;
1116 #endif /* CONFIG_NFS_V4_1 */
1120 #define NFS_PAGEVEC_SIZE (8U)
1122 struct nfs_read_data {
1124 struct rpc_task task;
1125 struct inode *inode;
1126 struct rpc_cred *cred;
1127 struct nfs_fattr fattr; /* fattr storage */
1128 struct list_head pages; /* Coalesced read requests */
1129 struct list_head list; /* lists of struct nfs_read_data */
1130 struct nfs_page *req; /* multi ops per nfs_page */
1131 struct page **pagevec;
1132 unsigned int npages; /* Max length of pagevec */
1133 struct nfs_readargs args;
1134 struct nfs_readres res;
1135 unsigned long timestamp; /* For lease renewal */
1136 struct pnfs_layout_segment *lseg;
1137 struct nfs_client *ds_clp; /* pNFS data server */
1138 const struct rpc_call_ops *mds_ops;
1139 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1142 struct page *page_array[NFS_PAGEVEC_SIZE];
1145 struct nfs_write_data {
1147 struct rpc_task task;
1148 struct inode *inode;
1149 struct rpc_cred *cred;
1150 struct nfs_fattr fattr;
1151 struct nfs_writeverf verf;
1152 struct list_head pages; /* Coalesced requests we wish to flush */
1153 struct list_head list; /* lists of struct nfs_write_data */
1154 struct nfs_page *req; /* multi ops per nfs_page */
1155 struct page **pagevec;
1156 unsigned int npages; /* Max length of pagevec */
1157 struct nfs_writeargs args; /* argument struct */
1158 struct nfs_writeres res; /* result struct */
1159 struct pnfs_layout_segment *lseg;
1160 struct nfs_client *ds_clp; /* pNFS data server */
1161 int ds_commit_index;
1162 const struct rpc_call_ops *mds_ops;
1163 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1164 #ifdef CONFIG_NFS_V4
1165 unsigned long timestamp; /* For lease renewal */
1167 __u64 mds_offset; /* Filelayout dense stripe */
1169 struct page *page_array[NFS_PAGEVEC_SIZE];
1172 struct nfs_access_entry;
1177 * RPC procedure vector for NFSv2/NFSv3 demuxing
1179 struct nfs_rpc_ops {
1180 u32 version; /* Protocol version */
1181 const struct dentry_operations *dentry_ops;
1182 const struct inode_operations *dir_inode_ops;
1183 const struct inode_operations *file_inode_ops;
1185 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1186 struct nfs_fsinfo *);
1187 int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1188 struct qstr *, struct nfs_fh *,
1189 struct nfs_fattr *);
1190 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1191 struct nfs_fattr *);
1192 int (*setattr) (struct dentry *, struct nfs_fattr *,
1194 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1195 struct nfs_fh *, struct nfs_fattr *);
1196 int (*access) (struct inode *, struct nfs_access_entry *);
1197 int (*readlink)(struct inode *, struct page *, unsigned int,
1199 int (*create) (struct inode *, struct dentry *,
1200 struct iattr *, int, struct nfs_open_context *);
1201 int (*remove) (struct inode *, struct qstr *);
1202 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1203 int (*unlink_done) (struct rpc_task *, struct inode *);
1204 int (*rename) (struct inode *, struct qstr *,
1205 struct inode *, struct qstr *);
1206 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1207 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1208 int (*link) (struct inode *, struct inode *, struct qstr *);
1209 int (*symlink) (struct inode *, struct dentry *, struct page *,
1210 unsigned int, struct iattr *);
1211 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1212 int (*rmdir) (struct inode *, struct qstr *);
1213 int (*readdir) (struct dentry *, struct rpc_cred *,
1214 u64, struct page **, unsigned int, int);
1215 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1217 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1218 struct nfs_fsstat *);
1219 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1220 struct nfs_fsinfo *);
1221 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1222 struct nfs_pathconf *);
1223 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1224 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1225 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1226 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1227 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1228 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1229 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1230 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1231 int (*lock)(struct file *, int, struct file_lock *);
1232 int (*lock_check_bounds)(const struct file_lock *);
1233 void (*clear_acl_cache)(struct inode *);
1234 void (*close_context)(struct nfs_open_context *ctx, int);
1235 struct inode * (*open_context) (struct inode *dir,
1236 struct nfs_open_context *ctx,
1238 struct iattr *iattr);
1239 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1240 const char *, rpc_authflavor_t, int);
1241 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1245 * NFS_CALL(getattr, inode, (fattr));
1247 * NFS_PROTO(inode)->getattr(fattr);
1249 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1252 * Function vectors etc. for the NFS client
1254 extern const struct nfs_rpc_ops nfs_v2_clientops;
1255 extern const struct nfs_rpc_ops nfs_v3_clientops;
1256 extern const struct nfs_rpc_ops nfs_v4_clientops;
1257 extern struct rpc_version nfs_version2;
1258 extern struct rpc_version nfs_version3;
1259 extern struct rpc_version nfs_version4;
1261 extern struct rpc_version nfsacl_version3;
1262 extern struct rpc_program nfsacl_program;