1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
17 /* Forward declaration for NFS v3 */
18 struct nfs4_secinfo_flavors;
31 * Helper for checking equality between 2 fsids.
33 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
35 return a->major == b->major && a->minor == b->minor;
38 struct nfs4_threshold {
48 unsigned int valid; /* which fields are valid */
66 __u64 mounted_on_fileid;
67 struct timespec atime;
68 struct timespec mtime;
69 struct timespec ctime;
70 __u64 change_attr; /* NFSv4 change attribute */
71 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
72 __u64 pre_size; /* pre_op_attr.size */
73 struct timespec pre_mtime; /* pre_op_attr.mtime */
74 struct timespec pre_ctime; /* pre_op_attr.ctime */
75 unsigned long time_start;
76 unsigned long gencount;
77 struct nfs4_string *owner_name;
78 struct nfs4_string *group_name;
79 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
82 #define NFS_ATTR_FATTR_TYPE (1U << 0)
83 #define NFS_ATTR_FATTR_MODE (1U << 1)
84 #define NFS_ATTR_FATTR_NLINK (1U << 2)
85 #define NFS_ATTR_FATTR_OWNER (1U << 3)
86 #define NFS_ATTR_FATTR_GROUP (1U << 4)
87 #define NFS_ATTR_FATTR_RDEV (1U << 5)
88 #define NFS_ATTR_FATTR_SIZE (1U << 6)
89 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
90 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
91 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
92 #define NFS_ATTR_FATTR_FSID (1U << 10)
93 #define NFS_ATTR_FATTR_FILEID (1U << 11)
94 #define NFS_ATTR_FATTR_ATIME (1U << 12)
95 #define NFS_ATTR_FATTR_MTIME (1U << 13)
96 #define NFS_ATTR_FATTR_CTIME (1U << 14)
97 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
98 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
99 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
100 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
101 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
102 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
103 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
104 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
105 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
106 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
108 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
109 | NFS_ATTR_FATTR_MODE \
110 | NFS_ATTR_FATTR_NLINK \
111 | NFS_ATTR_FATTR_OWNER \
112 | NFS_ATTR_FATTR_GROUP \
113 | NFS_ATTR_FATTR_RDEV \
114 | NFS_ATTR_FATTR_SIZE \
115 | NFS_ATTR_FATTR_FSID \
116 | NFS_ATTR_FATTR_FILEID \
117 | NFS_ATTR_FATTR_ATIME \
118 | NFS_ATTR_FATTR_MTIME \
119 | NFS_ATTR_FATTR_CTIME \
120 | NFS_ATTR_FATTR_CHANGE)
121 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_BLOCKS_USED)
123 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED)
125 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
126 | NFS_ATTR_FATTR_SPACE_USED)
129 * Info on the file system
132 struct nfs_fattr *fattr; /* Post-op attributes */
133 __u32 rtmax; /* max. read transfer size */
134 __u32 rtpref; /* pref. read transfer size */
135 __u32 rtmult; /* reads should be multiple of this */
136 __u32 wtmax; /* max. write transfer size */
137 __u32 wtpref; /* pref. write transfer size */
138 __u32 wtmult; /* writes should be multiple of this */
139 __u32 dtpref; /* pref. readdir transfer size */
141 struct timespec time_delta; /* server time granularity */
142 __u32 lease_time; /* in seconds */
143 __u32 layouttype; /* supported pnfs layout driver */
144 __u32 blksize; /* preferred pnfs io block size */
148 struct nfs_fattr *fattr; /* Post-op attributes */
149 __u64 tbytes; /* total size in bytes */
150 __u64 fbytes; /* # of free bytes */
151 __u64 abytes; /* # of bytes available to user */
152 __u64 tfiles; /* # of files */
153 __u64 ffiles; /* # of free files */
154 __u64 afiles; /* # of files available to user */
158 __u32 tsize; /* Server transfer size */
159 __u32 bsize; /* Filesystem block size */
160 __u32 blocks; /* No. of "bsize" blocks on filesystem */
161 __u32 bfree; /* No. of free "bsize" blocks */
162 __u32 bavail; /* No. of available "bsize" blocks */
165 struct nfs_pathconf {
166 struct nfs_fattr *fattr; /* Post-op attributes */
167 __u32 max_link; /* max # of hard links */
168 __u32 max_namelen; /* max name length */
171 struct nfs4_change_info {
179 /* nfs41 sessions channel attributes */
180 struct nfs4_channel_attrs {
183 u32 max_resp_sz_cached;
188 /* nfs41 sessions slot seqid */
193 struct nfs4_sequence_args {
194 struct nfs4_session *sa_session;
199 struct nfs4_sequence_res {
200 struct nfs4_session *sr_session;
201 struct nfs4_slot *sr_slot; /* slot used to send request */
202 int sr_status; /* sequence operation status */
203 unsigned long sr_renewal_time;
207 struct nfs4_get_lease_time_args {
208 struct nfs4_sequence_args la_seq_args;
211 struct nfs4_get_lease_time_res {
212 struct nfs_fsinfo *lr_fsinfo;
213 struct nfs4_sequence_res lr_seq_res;
216 #define PNFS_LAYOUT_MAXSIZE 4096
218 struct nfs4_layoutdriver_data {
224 struct pnfs_layout_range {
230 struct nfs4_layoutget_args {
232 struct pnfs_layout_range range;
236 struct nfs_open_context *ctx;
237 struct nfs4_sequence_args seq_args;
238 nfs4_stateid stateid;
239 struct nfs4_layoutdriver_data layout;
242 struct nfs4_layoutget_res {
243 __u32 return_on_close;
244 struct pnfs_layout_range range;
246 nfs4_stateid stateid;
247 struct nfs4_sequence_res seq_res;
248 struct nfs4_layoutdriver_data *layoutp;
251 struct nfs4_layoutget {
252 struct nfs4_layoutget_args args;
253 struct nfs4_layoutget_res res;
257 struct nfs4_getdevicelist_args {
258 const struct nfs_fh *fh;
260 struct nfs4_sequence_args seq_args;
263 struct nfs4_getdevicelist_res {
264 struct pnfs_devicelist *devlist;
265 struct nfs4_sequence_res seq_res;
268 struct nfs4_getdeviceinfo_args {
269 struct pnfs_device *pdev;
270 struct nfs4_sequence_args seq_args;
273 struct nfs4_getdeviceinfo_res {
274 struct pnfs_device *pdev;
275 struct nfs4_sequence_res seq_res;
278 struct nfs4_layoutcommit_args {
279 nfs4_stateid stateid;
280 __u64 lastbytewritten;
283 struct nfs4_sequence_args seq_args;
286 struct nfs4_layoutcommit_res {
287 struct nfs_fattr *fattr;
288 const struct nfs_server *server;
289 struct nfs4_sequence_res seq_res;
293 struct nfs4_layoutcommit_data {
294 struct rpc_task task;
295 struct nfs_fattr fattr;
296 struct list_head lseg_list;
297 struct rpc_cred *cred;
298 struct nfs4_layoutcommit_args args;
299 struct nfs4_layoutcommit_res res;
302 struct nfs4_layoutreturn_args {
303 struct pnfs_layout_hdr *layout;
305 nfs4_stateid stateid;
307 struct nfs4_sequence_args seq_args;
310 struct nfs4_layoutreturn_res {
311 struct nfs4_sequence_res seq_res;
313 nfs4_stateid stateid;
316 struct nfs4_layoutreturn {
317 struct nfs4_layoutreturn_args args;
318 struct nfs4_layoutreturn_res res;
319 struct rpc_cred *cred;
320 struct nfs_client *clp;
324 struct stateowner_id {
330 * Arguments to the open call.
332 struct nfs_openargs {
333 const struct nfs_fh * fh;
334 struct nfs_seqid * seqid;
339 struct stateowner_id id;
342 struct iattr * attrs; /* UNCHECKED, GUARDED */
343 nfs4_verifier verifier; /* EXCLUSIVE */
345 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
346 fmode_t delegation_type; /* CLAIM_PREVIOUS */
348 const struct qstr * name;
349 const struct nfs_server *server; /* Needed for ID mapping */
351 const u32 * open_bitmap;
353 struct nfs4_sequence_args seq_args;
357 nfs4_stateid stateid;
359 struct nfs4_change_info cinfo;
361 struct nfs_fattr * f_attr;
362 struct nfs_seqid * seqid;
363 const struct nfs_server *server;
364 fmode_t delegation_type;
365 nfs4_stateid delegation;
368 __u32 attrset[NFS4_BITMAP_SIZE];
369 struct nfs4_string *owner;
370 struct nfs4_string *group_owner;
371 struct nfs4_sequence_res seq_res;
372 __u32 access_request;
373 __u32 access_supported;
378 * Arguments to the open_confirm call.
380 struct nfs_open_confirmargs {
381 const struct nfs_fh * fh;
382 nfs4_stateid * stateid;
383 struct nfs_seqid * seqid;
386 struct nfs_open_confirmres {
387 nfs4_stateid stateid;
388 struct nfs_seqid * seqid;
392 * Arguments to the close call.
394 struct nfs_closeargs {
396 nfs4_stateid * stateid;
397 struct nfs_seqid * seqid;
400 struct nfs4_sequence_args seq_args;
403 struct nfs_closeres {
404 nfs4_stateid stateid;
405 struct nfs_fattr * fattr;
406 struct nfs_seqid * seqid;
407 const struct nfs_server *server;
408 struct nfs4_sequence_res seq_res;
411 * * Arguments to the lock,lockt, and locku call.
419 struct nfs_lock_args {
421 struct file_lock * fl;
422 struct nfs_seqid * lock_seqid;
423 nfs4_stateid * lock_stateid;
424 struct nfs_seqid * open_seqid;
425 nfs4_stateid * open_stateid;
426 struct nfs_lowner lock_owner;
427 unsigned char block : 1;
428 unsigned char reclaim : 1;
429 unsigned char new_lock_owner : 1;
430 struct nfs4_sequence_args seq_args;
433 struct nfs_lock_res {
434 nfs4_stateid stateid;
435 struct nfs_seqid * lock_seqid;
436 struct nfs_seqid * open_seqid;
437 struct nfs4_sequence_res seq_res;
440 struct nfs_locku_args {
442 struct file_lock * fl;
443 struct nfs_seqid * seqid;
444 nfs4_stateid * stateid;
445 struct nfs4_sequence_args seq_args;
448 struct nfs_locku_res {
449 nfs4_stateid stateid;
450 struct nfs_seqid * seqid;
451 struct nfs4_sequence_res seq_res;
454 struct nfs_lockt_args {
456 struct file_lock * fl;
457 struct nfs_lowner lock_owner;
458 struct nfs4_sequence_args seq_args;
461 struct nfs_lockt_res {
462 struct file_lock * denied; /* LOCK, LOCKT failed */
463 struct nfs4_sequence_res seq_res;
466 struct nfs_release_lockowner_args {
467 struct nfs_lowner lock_owner;
470 struct nfs4_delegreturnargs {
471 const struct nfs_fh *fhandle;
472 const nfs4_stateid *stateid;
474 struct nfs4_sequence_args seq_args;
477 struct nfs4_delegreturnres {
478 struct nfs_fattr * fattr;
479 const struct nfs_server *server;
480 struct nfs4_sequence_res seq_res;
484 * Arguments to the read call.
486 struct nfs_readargs {
488 struct nfs_open_context *context;
489 struct nfs_lock_context *lock_context;
493 struct page ** pages;
494 struct nfs4_sequence_args seq_args;
498 struct nfs_fattr * fattr;
501 struct nfs4_sequence_res seq_res;
505 * Arguments to the write call.
507 struct nfs_writeargs {
509 struct nfs_open_context *context;
510 struct nfs_lock_context *lock_context;
513 enum nfs3_stable_how stable;
515 struct page ** pages;
517 struct nfs4_sequence_args seq_args;
520 struct nfs_write_verifier {
524 struct nfs_writeverf {
525 struct nfs_write_verifier verifier;
526 enum nfs3_stable_how committed;
529 struct nfs_writeres {
530 struct nfs_fattr * fattr;
531 struct nfs_writeverf * verf;
533 const struct nfs_server *server;
534 struct nfs4_sequence_res seq_res;
538 * Arguments to the commit call.
540 struct nfs_commitargs {
545 struct nfs4_sequence_args seq_args;
548 struct nfs_commitres {
549 struct nfs_fattr *fattr;
550 struct nfs_writeverf *verf;
551 const struct nfs_server *server;
552 struct nfs4_sequence_res seq_res;
556 * Common arguments to the unlink call
558 struct nfs_removeargs {
559 const struct nfs_fh *fh;
561 struct nfs4_sequence_args seq_args;
564 struct nfs_removeres {
565 const struct nfs_server *server;
566 struct nfs_fattr *dir_attr;
567 struct nfs4_change_info cinfo;
568 struct nfs4_sequence_res seq_res;
572 * Common arguments to the rename call
574 struct nfs_renameargs {
575 const struct nfs_fh *old_dir;
576 const struct nfs_fh *new_dir;
577 const struct qstr *old_name;
578 const struct qstr *new_name;
579 struct nfs4_sequence_args seq_args;
582 struct nfs_renameres {
583 const struct nfs_server *server;
584 struct nfs4_change_info old_cinfo;
585 struct nfs_fattr *old_fattr;
586 struct nfs4_change_info new_cinfo;
587 struct nfs_fattr *new_fattr;
588 struct nfs4_sequence_res seq_res;
592 * Argument struct for decode_entry function
602 struct nfs_fattr * fattr;
603 unsigned char d_type;
604 struct nfs_server * server;
608 * The following types are for NFSv2 only.
610 struct nfs_sattrargs {
612 struct iattr * sattr;
615 struct nfs_diropargs {
621 struct nfs_createargs {
625 struct iattr * sattr;
628 struct nfs_setattrargs {
630 nfs4_stateid stateid;
632 const struct nfs_server * server; /* Needed for name mapping */
634 struct nfs4_sequence_args seq_args;
637 struct nfs_setaclargs {
640 unsigned int acl_pgbase;
641 struct page ** acl_pages;
642 struct nfs4_sequence_args seq_args;
645 struct nfs_setaclres {
646 struct nfs4_sequence_res seq_res;
649 struct nfs_getaclargs {
652 unsigned int acl_pgbase;
653 struct page ** acl_pages;
654 struct nfs4_sequence_args seq_args;
657 /* getxattr ACL interface flags */
658 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
659 struct nfs_getaclres {
661 size_t acl_data_offset;
663 struct page * acl_scratch;
664 struct nfs4_sequence_res seq_res;
667 struct nfs_setattrres {
668 struct nfs_fattr * fattr;
669 const struct nfs_server * server;
670 struct nfs4_sequence_res seq_res;
673 struct nfs_linkargs {
674 struct nfs_fh * fromfh;
675 struct nfs_fh * tofh;
680 struct nfs_symlinkargs {
681 struct nfs_fh * fromfh;
682 const char * fromname;
683 unsigned int fromlen;
684 struct page ** pages;
685 unsigned int pathlen;
686 struct iattr * sattr;
689 struct nfs_readdirargs {
693 struct page ** pages;
696 struct nfs3_getaclargs {
699 struct page ** pages;
702 struct nfs3_setaclargs {
703 struct inode * inode;
705 struct posix_acl * acl_access;
706 struct posix_acl * acl_default;
709 struct page ** pages;
714 struct nfs_fattr * fattr;
717 struct nfs_readlinkargs {
721 struct page ** pages;
724 struct nfs3_sattrargs {
726 struct iattr * sattr;
728 struct timespec guardtime;
731 struct nfs3_diropargs {
737 struct nfs3_accessargs {
742 struct nfs3_createargs {
746 struct iattr * sattr;
747 enum nfs3_createmode createmode;
751 struct nfs3_mkdirargs {
755 struct iattr * sattr;
758 struct nfs3_symlinkargs {
759 struct nfs_fh * fromfh;
760 const char * fromname;
761 unsigned int fromlen;
762 struct page ** pages;
763 unsigned int pathlen;
764 struct iattr * sattr;
767 struct nfs3_mknodargs {
771 enum nfs3_ftype type;
772 struct iattr * sattr;
776 struct nfs3_linkargs {
777 struct nfs_fh * fromfh;
778 struct nfs_fh * tofh;
783 struct nfs3_readdirargs {
789 struct page ** pages;
792 struct nfs3_diropres {
793 struct nfs_fattr * dir_attr;
795 struct nfs_fattr * fattr;
798 struct nfs3_accessres {
799 struct nfs_fattr * fattr;
803 struct nfs3_readlinkargs {
807 struct page ** pages;
810 struct nfs3_linkres {
811 struct nfs_fattr * dir_attr;
812 struct nfs_fattr * fattr;
815 struct nfs3_readdirres {
816 struct nfs_fattr * dir_attr;
821 struct nfs3_getaclres {
822 struct nfs_fattr * fattr;
824 unsigned int acl_access_count;
825 unsigned int acl_default_count;
826 struct posix_acl * acl_access;
827 struct posix_acl * acl_default;
830 #if IS_ENABLED(CONFIG_NFS_V4)
832 typedef u64 clientid4;
834 struct nfs4_accessargs {
835 const struct nfs_fh * fh;
838 struct nfs4_sequence_args seq_args;
841 struct nfs4_accessres {
842 const struct nfs_server * server;
843 struct nfs_fattr * fattr;
846 struct nfs4_sequence_res seq_res;
849 struct nfs4_create_arg {
853 struct page ** pages;
855 } symlink; /* NF4LNK */
859 } device; /* NF4BLK, NF4CHR */
861 const struct qstr * name;
862 const struct nfs_server * server;
863 const struct iattr * attrs;
864 const struct nfs_fh * dir_fh;
866 struct nfs4_sequence_args seq_args;
869 struct nfs4_create_res {
870 const struct nfs_server * server;
872 struct nfs_fattr * fattr;
873 struct nfs4_change_info dir_cinfo;
874 struct nfs4_sequence_res seq_res;
877 struct nfs4_fsinfo_arg {
878 const struct nfs_fh * fh;
880 struct nfs4_sequence_args seq_args;
883 struct nfs4_fsinfo_res {
884 struct nfs_fsinfo *fsinfo;
885 struct nfs4_sequence_res seq_res;
888 struct nfs4_getattr_arg {
889 const struct nfs_fh * fh;
891 struct nfs4_sequence_args seq_args;
894 struct nfs4_getattr_res {
895 const struct nfs_server * server;
896 struct nfs_fattr * fattr;
897 struct nfs4_sequence_res seq_res;
900 struct nfs4_link_arg {
901 const struct nfs_fh * fh;
902 const struct nfs_fh * dir_fh;
903 const struct qstr * name;
905 struct nfs4_sequence_args seq_args;
908 struct nfs4_link_res {
909 const struct nfs_server * server;
910 struct nfs_fattr * fattr;
911 struct nfs4_change_info cinfo;
912 struct nfs_fattr * dir_attr;
913 struct nfs4_sequence_res seq_res;
917 struct nfs4_lookup_arg {
918 const struct nfs_fh * dir_fh;
919 const struct qstr * name;
921 struct nfs4_sequence_args seq_args;
924 struct nfs4_lookup_res {
925 const struct nfs_server * server;
926 struct nfs_fattr * fattr;
928 struct nfs4_sequence_res seq_res;
931 struct nfs4_lookup_root_arg {
933 struct nfs4_sequence_args seq_args;
936 struct nfs4_pathconf_arg {
937 const struct nfs_fh * fh;
939 struct nfs4_sequence_args seq_args;
942 struct nfs4_pathconf_res {
943 struct nfs_pathconf *pathconf;
944 struct nfs4_sequence_res seq_res;
947 struct nfs4_readdir_arg {
948 const struct nfs_fh * fh;
950 nfs4_verifier verifier;
952 struct page ** pages; /* zero-copy data */
953 unsigned int pgbase; /* zero-copy data */
956 struct nfs4_sequence_args seq_args;
959 struct nfs4_readdir_res {
960 nfs4_verifier verifier;
962 struct nfs4_sequence_res seq_res;
965 struct nfs4_readlink {
966 const struct nfs_fh * fh;
968 unsigned int pglen; /* zero-copy data */
969 struct page ** pages; /* zero-copy data */
970 struct nfs4_sequence_args seq_args;
973 struct nfs4_readlink_res {
974 struct nfs4_sequence_res seq_res;
977 #define NFS4_SETCLIENTID_NAMELEN (127)
978 struct nfs4_setclientid {
979 const nfs4_verifier * sc_verifier;
980 unsigned int sc_name_len;
981 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
983 unsigned int sc_netid_len;
984 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
985 unsigned int sc_uaddr_len;
986 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
990 struct nfs4_setclientid_res {
992 nfs4_verifier confirm;
995 struct nfs4_statfs_arg {
996 const struct nfs_fh * fh;
998 struct nfs4_sequence_args seq_args;
1001 struct nfs4_statfs_res {
1002 struct nfs_fsstat *fsstat;
1003 struct nfs4_sequence_res seq_res;
1006 struct nfs4_server_caps_arg {
1007 struct nfs_fh *fhandle;
1008 struct nfs4_sequence_args seq_args;
1011 struct nfs4_server_caps_res {
1012 u32 attr_bitmask[3];
1017 struct nfs4_sequence_res seq_res;
1020 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1021 struct nfs4_pathname {
1022 unsigned int ncomponents;
1023 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1026 #define NFS4_FS_LOCATION_MAXSERVERS 10
1027 struct nfs4_fs_location {
1028 unsigned int nservers;
1029 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1030 struct nfs4_pathname rootpath;
1033 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1034 struct nfs4_fs_locations {
1035 struct nfs_fattr fattr;
1036 const struct nfs_server *server;
1037 struct nfs4_pathname fs_path;
1039 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1042 struct nfs4_fs_locations_arg {
1043 const struct nfs_fh *dir_fh;
1044 const struct qstr *name;
1047 struct nfs4_sequence_args seq_args;
1050 struct nfs4_fs_locations_res {
1051 struct nfs4_fs_locations *fs_locations;
1052 struct nfs4_sequence_res seq_res;
1055 struct nfs4_secinfo_oid {
1057 char data[GSS_OID_MAX_LEN];
1060 struct nfs4_secinfo_gss {
1061 struct nfs4_secinfo_oid sec_oid4;
1063 unsigned int service;
1066 struct nfs4_secinfo_flavor {
1067 unsigned int flavor;
1068 struct nfs4_secinfo_gss gss;
1071 struct nfs4_secinfo_flavors {
1072 unsigned int num_flavors;
1073 struct nfs4_secinfo_flavor flavors[0];
1076 struct nfs4_secinfo_arg {
1077 const struct nfs_fh *dir_fh;
1078 const struct qstr *name;
1079 struct nfs4_sequence_args seq_args;
1082 struct nfs4_secinfo_res {
1083 struct nfs4_secinfo_flavors *flavors;
1084 struct nfs4_sequence_res seq_res;
1087 #endif /* CONFIG_NFS_V4 */
1094 #ifdef CONFIG_NFS_V4_1
1096 struct pnfs_commit_bucket {
1097 struct list_head written;
1098 struct list_head committing;
1099 struct pnfs_layout_segment *wlseg;
1100 struct pnfs_layout_segment *clseg;
1103 struct pnfs_ds_commit_info {
1107 struct pnfs_commit_bucket *buckets;
1110 #define NFS4_EXCHANGE_ID_LEN (48)
1111 struct nfs41_exchange_id_args {
1112 struct nfs_client *client;
1113 nfs4_verifier *verifier;
1114 unsigned int id_len;
1115 char id[NFS4_EXCHANGE_ID_LEN];
1119 struct nfs41_server_owner {
1121 uint32_t major_id_sz;
1122 char major_id[NFS4_OPAQUE_LIMIT];
1125 struct nfs41_server_scope {
1126 uint32_t server_scope_sz;
1127 char server_scope[NFS4_OPAQUE_LIMIT];
1130 struct nfs41_impl_id {
1131 char domain[NFS4_OPAQUE_LIMIT + 1];
1132 char name[NFS4_OPAQUE_LIMIT + 1];
1133 struct nfstime4 date;
1136 struct nfs41_bind_conn_to_session_res {
1137 struct nfs4_session *session;
1139 bool use_conn_in_rdma_mode;
1142 struct nfs41_exchange_id_res {
1146 struct nfs41_server_owner *server_owner;
1147 struct nfs41_server_scope *server_scope;
1148 struct nfs41_impl_id *impl_id;
1151 struct nfs41_create_session_args {
1152 struct nfs_client *client;
1154 uint32_t cb_program;
1155 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1156 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1159 struct nfs41_create_session_res {
1160 struct nfs_client *client;
1163 struct nfs41_reclaim_complete_args {
1164 /* In the future extend to include curr_fh for use with migration */
1165 unsigned char one_fs:1;
1166 struct nfs4_sequence_args seq_args;
1169 struct nfs41_reclaim_complete_res {
1170 struct nfs4_sequence_res seq_res;
1173 #define SECINFO_STYLE_CURRENT_FH 0
1174 #define SECINFO_STYLE_PARENT 1
1175 struct nfs41_secinfo_no_name_args {
1177 struct nfs4_sequence_args seq_args;
1180 struct nfs41_test_stateid_args {
1181 nfs4_stateid *stateid;
1182 struct nfs4_sequence_args seq_args;
1185 struct nfs41_test_stateid_res {
1186 unsigned int status;
1187 struct nfs4_sequence_res seq_res;
1190 struct nfs41_free_stateid_args {
1191 nfs4_stateid *stateid;
1192 struct nfs4_sequence_args seq_args;
1195 struct nfs41_free_stateid_res {
1196 unsigned int status;
1197 struct nfs4_sequence_res seq_res;
1202 struct pnfs_ds_commit_info {
1205 #endif /* CONFIG_NFS_V4_1 */
1209 #define NFS_PAGEVEC_SIZE (8U)
1211 struct nfs_page_array {
1212 struct page **pagevec;
1213 unsigned int npages; /* Max length of pagevec */
1214 struct page *page_array[NFS_PAGEVEC_SIZE];
1217 struct nfs_read_data {
1218 struct nfs_pgio_header *header;
1219 struct list_head list;
1220 struct rpc_task task;
1221 struct nfs_fattr fattr; /* fattr storage */
1222 struct nfs_readargs args;
1223 struct nfs_readres res;
1224 unsigned long timestamp; /* For lease renewal */
1225 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1227 struct nfs_page_array pages;
1228 struct nfs_client *ds_clp; /* pNFS data server */
1231 /* used as flag bits in nfs_pgio_header */
1233 NFS_IOHDR_ERROR = 0,
1236 NFS_IOHDR_NEED_COMMIT,
1237 NFS_IOHDR_NEED_RESCHED,
1240 struct nfs_pgio_header {
1241 struct inode *inode;
1242 struct rpc_cred *cred;
1243 struct list_head pages;
1244 struct list_head rpc_list;
1246 struct nfs_page *req;
1247 struct nfs_writeverf *verf;
1248 struct pnfs_layout_segment *lseg;
1250 const struct rpc_call_ops *mds_ops;
1251 void (*release) (struct nfs_pgio_header *hdr);
1252 const struct nfs_pgio_completion_ops *completion_ops;
1253 struct nfs_direct_req *dreq;
1254 void *layout_private;
1256 /* fields protected by lock */
1258 int error; /* merge with pnfs_error */
1259 unsigned long good_bytes; /* boundary of good data */
1260 unsigned long flags;
1263 struct nfs_read_header {
1264 struct nfs_pgio_header header;
1265 struct nfs_read_data rpc_data;
1268 struct nfs_write_data {
1269 struct nfs_pgio_header *header;
1270 struct list_head list;
1271 struct rpc_task task;
1272 struct nfs_fattr fattr;
1273 struct nfs_writeverf verf;
1274 struct nfs_writeargs args; /* argument struct */
1275 struct nfs_writeres res; /* result struct */
1276 unsigned long timestamp; /* For lease renewal */
1277 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1278 __u64 mds_offset; /* Filelayout dense stripe */
1279 struct nfs_page_array pages;
1280 struct nfs_client *ds_clp; /* pNFS data server */
1283 struct nfs_write_header {
1284 struct nfs_pgio_header header;
1285 struct nfs_write_data rpc_data;
1286 struct nfs_writeverf verf;
1289 struct nfs_mds_commit_info {
1291 unsigned long ncommit;
1292 struct list_head list;
1295 struct nfs_commit_data;
1297 struct nfs_commit_completion_ops {
1298 void (*error_cleanup) (struct nfs_inode *nfsi);
1299 void (*completion) (struct nfs_commit_data *data);
1302 struct nfs_commit_info {
1304 struct nfs_mds_commit_info *mds;
1305 struct pnfs_ds_commit_info *ds;
1306 struct nfs_direct_req *dreq; /* O_DIRECT request */
1307 const struct nfs_commit_completion_ops *completion_ops;
1310 struct nfs_commit_data {
1311 struct rpc_task task;
1312 struct inode *inode;
1313 struct rpc_cred *cred;
1314 struct nfs_fattr fattr;
1315 struct nfs_writeverf verf;
1316 struct list_head pages; /* Coalesced requests we wish to flush */
1317 struct list_head list; /* lists of struct nfs_write_data */
1318 struct nfs_direct_req *dreq; /* O_DIRECT request */
1319 struct nfs_commitargs args; /* argument struct */
1320 struct nfs_commitres res; /* result struct */
1321 struct nfs_open_context *context;
1322 struct pnfs_layout_segment *lseg;
1323 struct nfs_client *ds_clp; /* pNFS data server */
1324 int ds_commit_index;
1325 const struct rpc_call_ops *mds_ops;
1326 const struct nfs_commit_completion_ops *completion_ops;
1327 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1330 struct nfs_pgio_completion_ops {
1331 void (*error_cleanup)(struct list_head *head);
1332 void (*init_hdr)(struct nfs_pgio_header *hdr);
1333 void (*completion)(struct nfs_pgio_header *hdr);
1336 struct nfs_unlinkdata {
1337 struct hlist_node list;
1338 struct nfs_removeargs args;
1339 struct nfs_removeres res;
1341 struct rpc_cred *cred;
1342 struct nfs_fattr dir_attr;
1345 struct nfs_renamedata {
1346 struct nfs_renameargs args;
1347 struct nfs_renameres res;
1348 struct rpc_cred *cred;
1349 struct inode *old_dir;
1350 struct dentry *old_dentry;
1351 struct nfs_fattr old_fattr;
1352 struct inode *new_dir;
1353 struct dentry *new_dentry;
1354 struct nfs_fattr new_fattr;
1357 struct nfs_access_entry;
1360 struct nfs_subversion;
1361 struct nfs_mount_info;
1362 struct nfs_client_initdata;
1363 struct nfs_pageio_descriptor;
1366 * RPC procedure vector for NFSv2/NFSv3 demuxing
1368 struct nfs_rpc_ops {
1369 u32 version; /* Protocol version */
1370 const struct dentry_operations *dentry_ops;
1371 const struct inode_operations *dir_inode_ops;
1372 const struct inode_operations *file_inode_ops;
1373 const struct file_operations *file_ops;
1375 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1376 struct nfs_fsinfo *);
1377 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1378 struct nfs_fh *, struct nfs_fattr *);
1379 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1380 struct nfs_subversion *);
1381 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1382 struct nfs_fattr *);
1383 int (*setattr) (struct dentry *, struct nfs_fattr *,
1385 int (*lookup) (struct inode *, struct qstr *,
1386 struct nfs_fh *, struct nfs_fattr *);
1387 int (*access) (struct inode *, struct nfs_access_entry *);
1388 int (*readlink)(struct inode *, struct page *, unsigned int,
1390 int (*create) (struct inode *, struct dentry *,
1391 struct iattr *, int);
1392 int (*remove) (struct inode *, struct qstr *);
1393 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1394 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1395 int (*unlink_done) (struct rpc_task *, struct inode *);
1396 int (*rename) (struct inode *, struct qstr *,
1397 struct inode *, struct qstr *);
1398 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1399 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1400 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1401 int (*link) (struct inode *, struct inode *, struct qstr *);
1402 int (*symlink) (struct inode *, struct dentry *, struct page *,
1403 unsigned int, struct iattr *);
1404 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1405 int (*rmdir) (struct inode *, struct qstr *);
1406 int (*readdir) (struct dentry *, struct rpc_cred *,
1407 u64, struct page **, unsigned int, int);
1408 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1410 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1411 struct nfs_fsstat *);
1412 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1413 struct nfs_fsinfo *);
1414 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1415 struct nfs_pathconf *);
1416 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1417 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1418 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1419 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1420 const struct nfs_pgio_completion_ops *);
1421 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1422 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1423 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1424 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1425 const struct nfs_pgio_completion_ops *);
1426 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1427 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1428 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1429 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1430 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1431 int (*lock)(struct file *, int, struct file_lock *);
1432 int (*lock_check_bounds)(const struct file_lock *);
1433 void (*clear_acl_cache)(struct inode *);
1434 void (*close_context)(struct nfs_open_context *ctx, int);
1435 struct inode * (*open_context) (struct inode *dir,
1436 struct nfs_open_context *ctx,
1438 struct iattr *iattr);
1439 int (*have_delegation)(struct inode *, fmode_t);
1440 int (*return_delegation)(struct inode *);
1441 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1443 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1444 const char *, rpc_authflavor_t);
1445 void (*free_client) (struct nfs_client *);
1446 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1447 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1448 struct nfs_fattr *, rpc_authflavor_t);
1452 * NFS_CALL(getattr, inode, (fattr));
1454 * NFS_PROTO(inode)->getattr(fattr);
1456 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1459 * Function vectors etc. for the NFS client
1461 extern const struct nfs_rpc_ops nfs_v2_clientops;
1462 extern const struct nfs_rpc_ops nfs_v3_clientops;
1463 extern const struct nfs_rpc_ops nfs_v4_clientops;
1464 extern const struct rpc_version nfs_version2;
1465 extern const struct rpc_version nfs_version3;
1466 extern const struct rpc_version nfs_version4;
1468 extern const struct rpc_version nfsacl_version3;
1469 extern const struct rpc_program nfsacl_program;