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 pnfs_layout_segment *lseg;
266 struct rpc_cred *cred;
267 struct nfs4_layoutcommit_args args;
268 struct nfs4_layoutcommit_res res;
271 struct nfs4_layoutreturn_args {
274 nfs4_stateid stateid;
275 struct nfs4_sequence_args seq_args;
278 struct nfs4_layoutreturn_res {
279 struct nfs4_sequence_res seq_res;
281 nfs4_stateid stateid;
284 struct nfs4_layoutreturn {
285 struct nfs4_layoutreturn_args args;
286 struct nfs4_layoutreturn_res res;
287 struct rpc_cred *cred;
288 struct nfs_client *clp;
293 * Arguments to the open call.
295 struct nfs_openargs {
296 const struct nfs_fh * fh;
297 struct nfs_seqid * seqid;
304 struct iattr * attrs; /* UNCHECKED, GUARDED */
305 nfs4_verifier verifier; /* EXCLUSIVE */
307 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
308 fmode_t delegation_type; /* CLAIM_PREVIOUS */
310 const struct qstr * name;
311 const struct nfs_server *server; /* Needed for ID mapping */
314 struct nfs4_sequence_args seq_args;
318 nfs4_stateid stateid;
320 struct nfs4_change_info cinfo;
322 struct nfs_fattr * f_attr;
323 struct nfs_fattr * dir_attr;
324 struct nfs_seqid * seqid;
325 const struct nfs_server *server;
326 fmode_t delegation_type;
327 nfs4_stateid delegation;
330 __u32 attrset[NFS4_BITMAP_SIZE];
331 struct nfs4_sequence_res seq_res;
335 * Arguments to the open_confirm call.
337 struct nfs_open_confirmargs {
338 const struct nfs_fh * fh;
339 nfs4_stateid * stateid;
340 struct nfs_seqid * seqid;
343 struct nfs_open_confirmres {
344 nfs4_stateid stateid;
345 struct nfs_seqid * seqid;
349 * Arguments to the close call.
351 struct nfs_closeargs {
353 nfs4_stateid * stateid;
354 struct nfs_seqid * seqid;
357 struct nfs4_sequence_args seq_args;
360 struct nfs_closeres {
361 nfs4_stateid stateid;
362 struct nfs_fattr * fattr;
363 struct nfs_seqid * seqid;
364 const struct nfs_server *server;
365 struct nfs4_sequence_res seq_res;
368 * * Arguments to the lock,lockt, and locku call.
376 struct nfs_lock_args {
378 struct file_lock * fl;
379 struct nfs_seqid * lock_seqid;
380 nfs4_stateid * lock_stateid;
381 struct nfs_seqid * open_seqid;
382 nfs4_stateid * open_stateid;
383 struct nfs_lowner lock_owner;
384 unsigned char block : 1;
385 unsigned char reclaim : 1;
386 unsigned char new_lock_owner : 1;
387 struct nfs4_sequence_args seq_args;
390 struct nfs_lock_res {
391 nfs4_stateid stateid;
392 struct nfs_seqid * lock_seqid;
393 struct nfs_seqid * open_seqid;
394 struct nfs4_sequence_res seq_res;
397 struct nfs_locku_args {
399 struct file_lock * fl;
400 struct nfs_seqid * seqid;
401 nfs4_stateid * stateid;
402 struct nfs4_sequence_args seq_args;
405 struct nfs_locku_res {
406 nfs4_stateid stateid;
407 struct nfs_seqid * seqid;
408 struct nfs4_sequence_res seq_res;
411 struct nfs_lockt_args {
413 struct file_lock * fl;
414 struct nfs_lowner lock_owner;
415 struct nfs4_sequence_args seq_args;
418 struct nfs_lockt_res {
419 struct file_lock * denied; /* LOCK, LOCKT failed */
420 struct nfs4_sequence_res seq_res;
423 struct nfs_release_lockowner_args {
424 struct nfs_lowner lock_owner;
427 struct nfs4_delegreturnargs {
428 const struct nfs_fh *fhandle;
429 const nfs4_stateid *stateid;
431 struct nfs4_sequence_args seq_args;
434 struct nfs4_delegreturnres {
435 struct nfs_fattr * fattr;
436 const struct nfs_server *server;
437 struct nfs4_sequence_res seq_res;
441 * Arguments to the read call.
443 struct nfs_readargs {
445 struct nfs_open_context *context;
446 struct nfs_lock_context *lock_context;
450 struct page ** pages;
451 struct nfs4_sequence_args seq_args;
455 struct nfs_fattr * fattr;
458 struct nfs4_sequence_res seq_res;
462 * Arguments to the write call.
464 struct nfs_writeargs {
466 struct nfs_open_context *context;
467 struct nfs_lock_context *lock_context;
470 enum nfs3_stable_how stable;
472 struct page ** pages;
474 struct nfs4_sequence_args seq_args;
477 struct nfs_writeverf {
478 enum nfs3_stable_how committed;
482 struct nfs_writeres {
483 struct nfs_fattr * fattr;
484 struct nfs_writeverf * verf;
486 const struct nfs_server *server;
487 struct nfs4_sequence_res seq_res;
491 * Common arguments to the unlink call
493 struct nfs_removeargs {
494 const struct nfs_fh *fh;
497 struct nfs4_sequence_args seq_args;
500 struct nfs_removeres {
501 const struct nfs_server *server;
502 struct nfs_fattr *dir_attr;
503 struct nfs4_change_info cinfo;
504 struct nfs4_sequence_res seq_res;
508 * Common arguments to the rename call
510 struct nfs_renameargs {
511 const struct nfs_fh *old_dir;
512 const struct nfs_fh *new_dir;
513 const struct qstr *old_name;
514 const struct qstr *new_name;
516 struct nfs4_sequence_args seq_args;
519 struct nfs_renameres {
520 const struct nfs_server *server;
521 struct nfs4_change_info old_cinfo;
522 struct nfs_fattr *old_fattr;
523 struct nfs4_change_info new_cinfo;
524 struct nfs_fattr *new_fattr;
525 struct nfs4_sequence_res seq_res;
529 * Argument struct for decode_entry function
539 struct nfs_fattr * fattr;
540 unsigned char d_type;
541 struct nfs_server * server;
545 * The following types are for NFSv2 only.
547 struct nfs_sattrargs {
549 struct iattr * sattr;
552 struct nfs_diropargs {
558 struct nfs_createargs {
562 struct iattr * sattr;
565 struct nfs_setattrargs {
567 nfs4_stateid stateid;
569 const struct nfs_server * server; /* Needed for name mapping */
571 struct nfs4_sequence_args seq_args;
574 struct nfs_setaclargs {
577 unsigned int acl_pgbase;
578 struct page ** acl_pages;
579 struct nfs4_sequence_args seq_args;
582 struct nfs_setaclres {
583 struct nfs4_sequence_res seq_res;
586 struct nfs_getaclargs {
589 unsigned int acl_pgbase;
590 struct page ** acl_pages;
591 struct nfs4_sequence_args seq_args;
594 struct nfs_getaclres {
596 struct nfs4_sequence_res seq_res;
599 struct nfs_setattrres {
600 struct nfs_fattr * fattr;
601 const struct nfs_server * server;
602 struct nfs4_sequence_res seq_res;
605 struct nfs_linkargs {
606 struct nfs_fh * fromfh;
607 struct nfs_fh * tofh;
612 struct nfs_symlinkargs {
613 struct nfs_fh * fromfh;
614 const char * fromname;
615 unsigned int fromlen;
616 struct page ** pages;
617 unsigned int pathlen;
618 struct iattr * sattr;
621 struct nfs_readdirargs {
625 struct page ** pages;
628 struct nfs3_getaclargs {
631 struct page ** pages;
634 struct nfs3_setaclargs {
635 struct inode * inode;
637 struct posix_acl * acl_access;
638 struct posix_acl * acl_default;
641 struct page ** pages;
646 struct nfs_fattr * fattr;
649 struct nfs_readlinkargs {
653 struct page ** pages;
656 struct nfs3_sattrargs {
658 struct iattr * sattr;
660 struct timespec guardtime;
663 struct nfs3_diropargs {
669 struct nfs3_accessargs {
674 struct nfs3_createargs {
678 struct iattr * sattr;
679 enum nfs3_createmode createmode;
683 struct nfs3_mkdirargs {
687 struct iattr * sattr;
690 struct nfs3_symlinkargs {
691 struct nfs_fh * fromfh;
692 const char * fromname;
693 unsigned int fromlen;
694 struct page ** pages;
695 unsigned int pathlen;
696 struct iattr * sattr;
699 struct nfs3_mknodargs {
703 enum nfs3_ftype type;
704 struct iattr * sattr;
708 struct nfs3_linkargs {
709 struct nfs_fh * fromfh;
710 struct nfs_fh * tofh;
715 struct nfs3_readdirargs {
721 struct page ** pages;
724 struct nfs3_diropres {
725 struct nfs_fattr * dir_attr;
727 struct nfs_fattr * fattr;
730 struct nfs3_accessres {
731 struct nfs_fattr * fattr;
735 struct nfs3_readlinkargs {
739 struct page ** pages;
742 struct nfs3_linkres {
743 struct nfs_fattr * dir_attr;
744 struct nfs_fattr * fattr;
747 struct nfs3_readdirres {
748 struct nfs_fattr * dir_attr;
753 struct nfs3_getaclres {
754 struct nfs_fattr * fattr;
756 unsigned int acl_access_count;
757 unsigned int acl_default_count;
758 struct posix_acl * acl_access;
759 struct posix_acl * acl_default;
764 typedef u64 clientid4;
766 struct nfs4_accessargs {
767 const struct nfs_fh * fh;
770 struct nfs4_sequence_args seq_args;
773 struct nfs4_accessres {
774 const struct nfs_server * server;
775 struct nfs_fattr * fattr;
778 struct nfs4_sequence_res seq_res;
781 struct nfs4_create_arg {
785 struct page ** pages;
787 } symlink; /* NF4LNK */
791 } device; /* NF4BLK, NF4CHR */
793 const struct qstr * name;
794 const struct nfs_server * server;
795 const struct iattr * attrs;
796 const struct nfs_fh * dir_fh;
798 struct nfs4_sequence_args seq_args;
801 struct nfs4_create_res {
802 const struct nfs_server * server;
804 struct nfs_fattr * fattr;
805 struct nfs4_change_info dir_cinfo;
806 struct nfs_fattr * dir_fattr;
807 struct nfs4_sequence_res seq_res;
810 struct nfs4_fsinfo_arg {
811 const struct nfs_fh * fh;
813 struct nfs4_sequence_args seq_args;
816 struct nfs4_fsinfo_res {
817 struct nfs_fsinfo *fsinfo;
818 struct nfs4_sequence_res seq_res;
821 struct nfs4_getattr_arg {
822 const struct nfs_fh * fh;
824 struct nfs4_sequence_args seq_args;
827 struct nfs4_getattr_res {
828 const struct nfs_server * server;
829 struct nfs_fattr * fattr;
830 struct nfs4_sequence_res seq_res;
833 struct nfs4_link_arg {
834 const struct nfs_fh * fh;
835 const struct nfs_fh * dir_fh;
836 const struct qstr * name;
838 struct nfs4_sequence_args seq_args;
841 struct nfs4_link_res {
842 const struct nfs_server * server;
843 struct nfs_fattr * fattr;
844 struct nfs4_change_info cinfo;
845 struct nfs_fattr * dir_attr;
846 struct nfs4_sequence_res seq_res;
850 struct nfs4_lookup_arg {
851 const struct nfs_fh * dir_fh;
852 const struct qstr * name;
854 struct nfs4_sequence_args seq_args;
857 struct nfs4_lookup_res {
858 const struct nfs_server * server;
859 struct nfs_fattr * fattr;
861 struct nfs4_sequence_res seq_res;
864 struct nfs4_lookup_root_arg {
866 struct nfs4_sequence_args seq_args;
869 struct nfs4_pathconf_arg {
870 const struct nfs_fh * fh;
872 struct nfs4_sequence_args seq_args;
875 struct nfs4_pathconf_res {
876 struct nfs_pathconf *pathconf;
877 struct nfs4_sequence_res seq_res;
880 struct nfs4_readdir_arg {
881 const struct nfs_fh * fh;
883 nfs4_verifier verifier;
885 struct page ** pages; /* zero-copy data */
886 unsigned int pgbase; /* zero-copy data */
889 struct nfs4_sequence_args seq_args;
892 struct nfs4_readdir_res {
893 nfs4_verifier verifier;
895 struct nfs4_sequence_res seq_res;
898 struct nfs4_readlink {
899 const struct nfs_fh * fh;
901 unsigned int pglen; /* zero-copy data */
902 struct page ** pages; /* zero-copy data */
903 struct nfs4_sequence_args seq_args;
906 struct nfs4_readlink_res {
907 struct nfs4_sequence_res seq_res;
910 #define NFS4_SETCLIENTID_NAMELEN (127)
911 struct nfs4_setclientid {
912 const nfs4_verifier * sc_verifier;
913 unsigned int sc_name_len;
914 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
916 unsigned int sc_netid_len;
917 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
918 unsigned int sc_uaddr_len;
919 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
923 struct nfs4_setclientid_res {
925 nfs4_verifier confirm;
928 struct nfs4_statfs_arg {
929 const struct nfs_fh * fh;
931 struct nfs4_sequence_args seq_args;
934 struct nfs4_statfs_res {
935 struct nfs_fsstat *fsstat;
936 struct nfs4_sequence_res seq_res;
939 struct nfs4_server_caps_arg {
940 struct nfs_fh *fhandle;
941 struct nfs4_sequence_args seq_args;
944 struct nfs4_server_caps_res {
949 struct nfs4_sequence_res seq_res;
957 #define NFS4_PATHNAME_MAXCOMPONENTS 512
958 struct nfs4_pathname {
959 unsigned int ncomponents;
960 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
963 #define NFS4_FS_LOCATION_MAXSERVERS 10
964 struct nfs4_fs_location {
965 unsigned int nservers;
966 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
967 struct nfs4_pathname rootpath;
970 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
971 struct nfs4_fs_locations {
972 struct nfs_fattr fattr;
973 const struct nfs_server *server;
974 struct nfs4_pathname fs_path;
976 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
979 struct nfs4_fs_locations_arg {
980 const struct nfs_fh *dir_fh;
981 const struct qstr *name;
984 struct nfs4_sequence_args seq_args;
987 struct nfs4_fs_locations_res {
988 struct nfs4_fs_locations *fs_locations;
989 struct nfs4_sequence_res seq_res;
992 struct nfs4_secinfo_oid {
994 char data[GSS_OID_MAX_LEN];
997 struct nfs4_secinfo_gss {
998 struct nfs4_secinfo_oid sec_oid4;
1000 unsigned int service;
1003 struct nfs4_secinfo_flavor {
1004 unsigned int flavor;
1005 struct nfs4_secinfo_gss gss;
1008 struct nfs4_secinfo_flavors {
1009 unsigned int num_flavors;
1010 struct nfs4_secinfo_flavor flavors[0];
1013 struct nfs4_secinfo_arg {
1014 const struct nfs_fh *dir_fh;
1015 const struct qstr *name;
1016 struct nfs4_sequence_args seq_args;
1019 struct nfs4_secinfo_res {
1020 struct nfs4_secinfo_flavors *flavors;
1021 struct nfs4_sequence_res seq_res;
1024 #endif /* CONFIG_NFS_V4 */
1031 #ifdef CONFIG_NFS_V4_1
1032 struct nfs_impl_id4 {
1037 struct nfstime4 date;
1040 #define NFS4_EXCHANGE_ID_LEN (48)
1041 struct nfs41_exchange_id_args {
1042 struct nfs_client *client;
1043 nfs4_verifier *verifier;
1044 unsigned int id_len;
1045 char id[NFS4_EXCHANGE_ID_LEN];
1049 struct server_owner {
1051 uint32_t major_id_sz;
1052 char major_id[NFS4_OPAQUE_LIMIT];
1055 struct server_scope {
1056 uint32_t server_scope_sz;
1057 char server_scope[NFS4_OPAQUE_LIMIT];
1060 struct nfs41_exchange_id_res {
1061 struct nfs_client *client;
1065 struct nfs41_create_session_args {
1066 struct nfs_client *client;
1068 uint32_t cb_program;
1069 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1070 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1073 struct nfs41_create_session_res {
1074 struct nfs_client *client;
1077 struct nfs41_reclaim_complete_args {
1078 /* In the future extend to include curr_fh for use with migration */
1079 unsigned char one_fs:1;
1080 struct nfs4_sequence_args seq_args;
1083 struct nfs41_reclaim_complete_res {
1084 struct nfs4_sequence_res seq_res;
1086 #endif /* CONFIG_NFS_V4_1 */
1090 #define NFS_PAGEVEC_SIZE (8U)
1092 struct nfs_read_data {
1094 struct rpc_task task;
1095 struct inode *inode;
1096 struct rpc_cred *cred;
1097 struct nfs_fattr fattr; /* fattr storage */
1098 struct list_head pages; /* Coalesced read requests */
1099 struct nfs_page *req; /* multi ops per nfs_page */
1100 struct page **pagevec;
1101 unsigned int npages; /* Max length of pagevec */
1102 struct nfs_readargs args;
1103 struct nfs_readres res;
1104 unsigned long timestamp; /* For lease renewal */
1105 struct pnfs_layout_segment *lseg;
1106 struct nfs_client *ds_clp; /* pNFS data server */
1107 const struct rpc_call_ops *mds_ops;
1108 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1111 struct page *page_array[NFS_PAGEVEC_SIZE];
1114 struct nfs_write_data {
1116 struct rpc_task task;
1117 struct inode *inode;
1118 struct rpc_cred *cred;
1119 struct nfs_fattr fattr;
1120 struct nfs_writeverf verf;
1121 struct list_head pages; /* Coalesced requests we wish to flush */
1122 struct nfs_page *req; /* multi ops per nfs_page */
1123 struct page **pagevec;
1124 unsigned int npages; /* Max length of pagevec */
1125 struct nfs_writeargs args; /* argument struct */
1126 struct nfs_writeres res; /* result struct */
1127 struct pnfs_layout_segment *lseg;
1128 struct nfs_client *ds_clp; /* pNFS data server */
1129 int ds_commit_index;
1130 const struct rpc_call_ops *mds_ops;
1131 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1132 #ifdef CONFIG_NFS_V4
1133 unsigned long timestamp; /* For lease renewal */
1135 __u64 mds_offset; /* Filelayout dense stripe */
1137 struct page *page_array[NFS_PAGEVEC_SIZE];
1140 struct nfs_access_entry;
1145 * RPC procedure vector for NFSv2/NFSv3 demuxing
1147 struct nfs_rpc_ops {
1148 u32 version; /* Protocol version */
1149 const struct dentry_operations *dentry_ops;
1150 const struct inode_operations *dir_inode_ops;
1151 const struct inode_operations *file_inode_ops;
1153 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1154 struct nfs_fsinfo *);
1155 int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1156 struct qstr *, struct nfs_fh *,
1157 struct nfs_fattr *);
1158 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1159 struct nfs_fattr *);
1160 int (*setattr) (struct dentry *, struct nfs_fattr *,
1162 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1163 struct nfs_fh *, struct nfs_fattr *);
1164 int (*access) (struct inode *, struct nfs_access_entry *);
1165 int (*readlink)(struct inode *, struct page *, unsigned int,
1167 int (*create) (struct inode *, struct dentry *,
1168 struct iattr *, int, struct nfs_open_context *);
1169 int (*remove) (struct inode *, struct qstr *);
1170 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1171 int (*unlink_done) (struct rpc_task *, struct inode *);
1172 int (*rename) (struct inode *, struct qstr *,
1173 struct inode *, struct qstr *);
1174 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1175 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1176 int (*link) (struct inode *, struct inode *, struct qstr *);
1177 int (*symlink) (struct inode *, struct dentry *, struct page *,
1178 unsigned int, struct iattr *);
1179 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1180 int (*rmdir) (struct inode *, struct qstr *);
1181 int (*readdir) (struct dentry *, struct rpc_cred *,
1182 u64, struct page **, unsigned int, int);
1183 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1185 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1186 struct nfs_fsstat *);
1187 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1188 struct nfs_fsinfo *);
1189 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1190 struct nfs_pathconf *);
1191 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1192 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1193 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1194 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1195 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1196 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1197 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1198 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1199 int (*lock)(struct file *, int, struct file_lock *);
1200 int (*lock_check_bounds)(const struct file_lock *);
1201 void (*clear_acl_cache)(struct inode *);
1202 void (*close_context)(struct nfs_open_context *ctx, int);
1203 struct inode * (*open_context) (struct inode *dir,
1204 struct nfs_open_context *ctx,
1206 struct iattr *iattr);
1207 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1208 const char *, rpc_authflavor_t, int);
1209 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1213 * NFS_CALL(getattr, inode, (fattr));
1215 * NFS_PROTO(inode)->getattr(fattr);
1217 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1220 * Function vectors etc. for the NFS client
1222 extern const struct nfs_rpc_ops nfs_v2_clientops;
1223 extern const struct nfs_rpc_ops nfs_v3_clientops;
1224 extern const struct nfs_rpc_ops nfs_v4_clientops;
1225 extern struct rpc_version nfs_version2;
1226 extern struct rpc_version nfs_version3;
1227 extern struct rpc_version nfs_version4;
1229 extern struct rpc_version nfsacl_version3;
1230 extern struct rpc_program nfsacl_program;