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_supported;
377 * Arguments to the open_confirm call.
379 struct nfs_open_confirmargs {
380 const struct nfs_fh * fh;
381 nfs4_stateid * stateid;
382 struct nfs_seqid * seqid;
385 struct nfs_open_confirmres {
386 nfs4_stateid stateid;
387 struct nfs_seqid * seqid;
391 * Arguments to the close call.
393 struct nfs_closeargs {
395 nfs4_stateid * stateid;
396 struct nfs_seqid * seqid;
399 struct nfs4_sequence_args seq_args;
402 struct nfs_closeres {
403 nfs4_stateid stateid;
404 struct nfs_fattr * fattr;
405 struct nfs_seqid * seqid;
406 const struct nfs_server *server;
407 struct nfs4_sequence_res seq_res;
410 * * Arguments to the lock,lockt, and locku call.
418 struct nfs_lock_args {
420 struct file_lock * fl;
421 struct nfs_seqid * lock_seqid;
422 nfs4_stateid * lock_stateid;
423 struct nfs_seqid * open_seqid;
424 nfs4_stateid * open_stateid;
425 struct nfs_lowner lock_owner;
426 unsigned char block : 1;
427 unsigned char reclaim : 1;
428 unsigned char new_lock_owner : 1;
429 struct nfs4_sequence_args seq_args;
432 struct nfs_lock_res {
433 nfs4_stateid stateid;
434 struct nfs_seqid * lock_seqid;
435 struct nfs_seqid * open_seqid;
436 struct nfs4_sequence_res seq_res;
439 struct nfs_locku_args {
441 struct file_lock * fl;
442 struct nfs_seqid * seqid;
443 nfs4_stateid * stateid;
444 struct nfs4_sequence_args seq_args;
447 struct nfs_locku_res {
448 nfs4_stateid stateid;
449 struct nfs_seqid * seqid;
450 struct nfs4_sequence_res seq_res;
453 struct nfs_lockt_args {
455 struct file_lock * fl;
456 struct nfs_lowner lock_owner;
457 struct nfs4_sequence_args seq_args;
460 struct nfs_lockt_res {
461 struct file_lock * denied; /* LOCK, LOCKT failed */
462 struct nfs4_sequence_res seq_res;
465 struct nfs_release_lockowner_args {
466 struct nfs_lowner lock_owner;
469 struct nfs4_delegreturnargs {
470 const struct nfs_fh *fhandle;
471 const nfs4_stateid *stateid;
473 struct nfs4_sequence_args seq_args;
476 struct nfs4_delegreturnres {
477 struct nfs_fattr * fattr;
478 const struct nfs_server *server;
479 struct nfs4_sequence_res seq_res;
483 * Arguments to the read call.
485 struct nfs_readargs {
487 struct nfs_open_context *context;
488 struct nfs_lock_context *lock_context;
492 struct page ** pages;
493 struct nfs4_sequence_args seq_args;
497 struct nfs_fattr * fattr;
500 struct nfs4_sequence_res seq_res;
504 * Arguments to the write call.
506 struct nfs_writeargs {
508 struct nfs_open_context *context;
509 struct nfs_lock_context *lock_context;
512 enum nfs3_stable_how stable;
514 struct page ** pages;
516 struct nfs4_sequence_args seq_args;
519 struct nfs_write_verifier {
523 struct nfs_writeverf {
524 struct nfs_write_verifier verifier;
525 enum nfs3_stable_how committed;
528 struct nfs_writeres {
529 struct nfs_fattr * fattr;
530 struct nfs_writeverf * verf;
532 const struct nfs_server *server;
533 struct nfs4_sequence_res seq_res;
537 * Arguments to the commit call.
539 struct nfs_commitargs {
544 struct nfs4_sequence_args seq_args;
547 struct nfs_commitres {
548 struct nfs_fattr *fattr;
549 struct nfs_writeverf *verf;
550 const struct nfs_server *server;
551 struct nfs4_sequence_res seq_res;
555 * Common arguments to the unlink call
557 struct nfs_removeargs {
558 const struct nfs_fh *fh;
560 struct nfs4_sequence_args seq_args;
563 struct nfs_removeres {
564 const struct nfs_server *server;
565 struct nfs_fattr *dir_attr;
566 struct nfs4_change_info cinfo;
567 struct nfs4_sequence_res seq_res;
571 * Common arguments to the rename call
573 struct nfs_renameargs {
574 const struct nfs_fh *old_dir;
575 const struct nfs_fh *new_dir;
576 const struct qstr *old_name;
577 const struct qstr *new_name;
578 struct nfs4_sequence_args seq_args;
581 struct nfs_renameres {
582 const struct nfs_server *server;
583 struct nfs4_change_info old_cinfo;
584 struct nfs_fattr *old_fattr;
585 struct nfs4_change_info new_cinfo;
586 struct nfs_fattr *new_fattr;
587 struct nfs4_sequence_res seq_res;
591 * Argument struct for decode_entry function
601 struct nfs_fattr * fattr;
602 unsigned char d_type;
603 struct nfs_server * server;
607 * The following types are for NFSv2 only.
609 struct nfs_sattrargs {
611 struct iattr * sattr;
614 struct nfs_diropargs {
620 struct nfs_createargs {
624 struct iattr * sattr;
627 struct nfs_setattrargs {
629 nfs4_stateid stateid;
631 const struct nfs_server * server; /* Needed for name mapping */
633 struct nfs4_sequence_args seq_args;
636 struct nfs_setaclargs {
639 unsigned int acl_pgbase;
640 struct page ** acl_pages;
641 struct nfs4_sequence_args seq_args;
644 struct nfs_setaclres {
645 struct nfs4_sequence_res seq_res;
648 struct nfs_getaclargs {
651 unsigned int acl_pgbase;
652 struct page ** acl_pages;
653 struct nfs4_sequence_args seq_args;
656 /* getxattr ACL interface flags */
657 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
658 struct nfs_getaclres {
660 size_t acl_data_offset;
662 struct page * acl_scratch;
663 struct nfs4_sequence_res seq_res;
666 struct nfs_setattrres {
667 struct nfs_fattr * fattr;
668 const struct nfs_server * server;
669 struct nfs4_sequence_res seq_res;
672 struct nfs_linkargs {
673 struct nfs_fh * fromfh;
674 struct nfs_fh * tofh;
679 struct nfs_symlinkargs {
680 struct nfs_fh * fromfh;
681 const char * fromname;
682 unsigned int fromlen;
683 struct page ** pages;
684 unsigned int pathlen;
685 struct iattr * sattr;
688 struct nfs_readdirargs {
692 struct page ** pages;
695 struct nfs3_getaclargs {
698 struct page ** pages;
701 struct nfs3_setaclargs {
702 struct inode * inode;
704 struct posix_acl * acl_access;
705 struct posix_acl * acl_default;
708 struct page ** pages;
713 struct nfs_fattr * fattr;
716 struct nfs_readlinkargs {
720 struct page ** pages;
723 struct nfs3_sattrargs {
725 struct iattr * sattr;
727 struct timespec guardtime;
730 struct nfs3_diropargs {
736 struct nfs3_accessargs {
741 struct nfs3_createargs {
745 struct iattr * sattr;
746 enum nfs3_createmode createmode;
750 struct nfs3_mkdirargs {
754 struct iattr * sattr;
757 struct nfs3_symlinkargs {
758 struct nfs_fh * fromfh;
759 const char * fromname;
760 unsigned int fromlen;
761 struct page ** pages;
762 unsigned int pathlen;
763 struct iattr * sattr;
766 struct nfs3_mknodargs {
770 enum nfs3_ftype type;
771 struct iattr * sattr;
775 struct nfs3_linkargs {
776 struct nfs_fh * fromfh;
777 struct nfs_fh * tofh;
782 struct nfs3_readdirargs {
788 struct page ** pages;
791 struct nfs3_diropres {
792 struct nfs_fattr * dir_attr;
794 struct nfs_fattr * fattr;
797 struct nfs3_accessres {
798 struct nfs_fattr * fattr;
802 struct nfs3_readlinkargs {
806 struct page ** pages;
809 struct nfs3_linkres {
810 struct nfs_fattr * dir_attr;
811 struct nfs_fattr * fattr;
814 struct nfs3_readdirres {
815 struct nfs_fattr * dir_attr;
820 struct nfs3_getaclres {
821 struct nfs_fattr * fattr;
823 unsigned int acl_access_count;
824 unsigned int acl_default_count;
825 struct posix_acl * acl_access;
826 struct posix_acl * acl_default;
829 #if IS_ENABLED(CONFIG_NFS_V4)
831 typedef u64 clientid4;
833 struct nfs4_accessargs {
834 const struct nfs_fh * fh;
837 struct nfs4_sequence_args seq_args;
840 struct nfs4_accessres {
841 const struct nfs_server * server;
842 struct nfs_fattr * fattr;
845 struct nfs4_sequence_res seq_res;
848 struct nfs4_create_arg {
852 struct page ** pages;
854 } symlink; /* NF4LNK */
858 } device; /* NF4BLK, NF4CHR */
860 const struct qstr * name;
861 const struct nfs_server * server;
862 const struct iattr * attrs;
863 const struct nfs_fh * dir_fh;
865 struct nfs4_sequence_args seq_args;
868 struct nfs4_create_res {
869 const struct nfs_server * server;
871 struct nfs_fattr * fattr;
872 struct nfs4_change_info dir_cinfo;
873 struct nfs4_sequence_res seq_res;
876 struct nfs4_fsinfo_arg {
877 const struct nfs_fh * fh;
879 struct nfs4_sequence_args seq_args;
882 struct nfs4_fsinfo_res {
883 struct nfs_fsinfo *fsinfo;
884 struct nfs4_sequence_res seq_res;
887 struct nfs4_getattr_arg {
888 const struct nfs_fh * fh;
890 struct nfs4_sequence_args seq_args;
893 struct nfs4_getattr_res {
894 const struct nfs_server * server;
895 struct nfs_fattr * fattr;
896 struct nfs4_sequence_res seq_res;
899 struct nfs4_link_arg {
900 const struct nfs_fh * fh;
901 const struct nfs_fh * dir_fh;
902 const struct qstr * name;
904 struct nfs4_sequence_args seq_args;
907 struct nfs4_link_res {
908 const struct nfs_server * server;
909 struct nfs_fattr * fattr;
910 struct nfs4_change_info cinfo;
911 struct nfs_fattr * dir_attr;
912 struct nfs4_sequence_res seq_res;
916 struct nfs4_lookup_arg {
917 const struct nfs_fh * dir_fh;
918 const struct qstr * name;
920 struct nfs4_sequence_args seq_args;
923 struct nfs4_lookup_res {
924 const struct nfs_server * server;
925 struct nfs_fattr * fattr;
927 struct nfs4_sequence_res seq_res;
930 struct nfs4_lookup_root_arg {
932 struct nfs4_sequence_args seq_args;
935 struct nfs4_pathconf_arg {
936 const struct nfs_fh * fh;
938 struct nfs4_sequence_args seq_args;
941 struct nfs4_pathconf_res {
942 struct nfs_pathconf *pathconf;
943 struct nfs4_sequence_res seq_res;
946 struct nfs4_readdir_arg {
947 const struct nfs_fh * fh;
949 nfs4_verifier verifier;
951 struct page ** pages; /* zero-copy data */
952 unsigned int pgbase; /* zero-copy data */
955 struct nfs4_sequence_args seq_args;
958 struct nfs4_readdir_res {
959 nfs4_verifier verifier;
961 struct nfs4_sequence_res seq_res;
964 struct nfs4_readlink {
965 const struct nfs_fh * fh;
967 unsigned int pglen; /* zero-copy data */
968 struct page ** pages; /* zero-copy data */
969 struct nfs4_sequence_args seq_args;
972 struct nfs4_readlink_res {
973 struct nfs4_sequence_res seq_res;
976 #define NFS4_SETCLIENTID_NAMELEN (127)
977 struct nfs4_setclientid {
978 const nfs4_verifier * sc_verifier;
979 unsigned int sc_name_len;
980 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
982 unsigned int sc_netid_len;
983 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
984 unsigned int sc_uaddr_len;
985 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
989 struct nfs4_setclientid_res {
991 nfs4_verifier confirm;
994 struct nfs4_statfs_arg {
995 const struct nfs_fh * fh;
997 struct nfs4_sequence_args seq_args;
1000 struct nfs4_statfs_res {
1001 struct nfs_fsstat *fsstat;
1002 struct nfs4_sequence_res seq_res;
1005 struct nfs4_server_caps_arg {
1006 struct nfs_fh *fhandle;
1007 struct nfs4_sequence_args seq_args;
1010 struct nfs4_server_caps_res {
1011 u32 attr_bitmask[3];
1016 struct nfs4_sequence_res seq_res;
1019 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1020 struct nfs4_pathname {
1021 unsigned int ncomponents;
1022 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1025 #define NFS4_FS_LOCATION_MAXSERVERS 10
1026 struct nfs4_fs_location {
1027 unsigned int nservers;
1028 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1029 struct nfs4_pathname rootpath;
1032 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1033 struct nfs4_fs_locations {
1034 struct nfs_fattr fattr;
1035 const struct nfs_server *server;
1036 struct nfs4_pathname fs_path;
1038 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1041 struct nfs4_fs_locations_arg {
1042 const struct nfs_fh *dir_fh;
1043 const struct qstr *name;
1046 struct nfs4_sequence_args seq_args;
1049 struct nfs4_fs_locations_res {
1050 struct nfs4_fs_locations *fs_locations;
1051 struct nfs4_sequence_res seq_res;
1054 struct nfs4_secinfo_oid {
1056 char data[GSS_OID_MAX_LEN];
1059 struct nfs4_secinfo_gss {
1060 struct nfs4_secinfo_oid sec_oid4;
1062 unsigned int service;
1065 struct nfs4_secinfo_flavor {
1066 unsigned int flavor;
1067 struct nfs4_secinfo_gss gss;
1070 struct nfs4_secinfo_flavors {
1071 unsigned int num_flavors;
1072 struct nfs4_secinfo_flavor flavors[0];
1075 struct nfs4_secinfo_arg {
1076 const struct nfs_fh *dir_fh;
1077 const struct qstr *name;
1078 struct nfs4_sequence_args seq_args;
1081 struct nfs4_secinfo_res {
1082 struct nfs4_secinfo_flavors *flavors;
1083 struct nfs4_sequence_res seq_res;
1086 #endif /* CONFIG_NFS_V4 */
1093 #ifdef CONFIG_NFS_V4_1
1095 struct pnfs_commit_bucket {
1096 struct list_head written;
1097 struct list_head committing;
1098 struct pnfs_layout_segment *wlseg;
1099 struct pnfs_layout_segment *clseg;
1102 struct pnfs_ds_commit_info {
1106 struct pnfs_commit_bucket *buckets;
1109 #define NFS4_EXCHANGE_ID_LEN (48)
1110 struct nfs41_exchange_id_args {
1111 struct nfs_client *client;
1112 nfs4_verifier *verifier;
1113 unsigned int id_len;
1114 char id[NFS4_EXCHANGE_ID_LEN];
1118 struct nfs41_server_owner {
1120 uint32_t major_id_sz;
1121 char major_id[NFS4_OPAQUE_LIMIT];
1124 struct nfs41_server_scope {
1125 uint32_t server_scope_sz;
1126 char server_scope[NFS4_OPAQUE_LIMIT];
1129 struct nfs41_impl_id {
1130 char domain[NFS4_OPAQUE_LIMIT + 1];
1131 char name[NFS4_OPAQUE_LIMIT + 1];
1132 struct nfstime4 date;
1135 struct nfs41_bind_conn_to_session_res {
1136 struct nfs4_session *session;
1138 bool use_conn_in_rdma_mode;
1141 struct nfs41_exchange_id_res {
1145 struct nfs41_server_owner *server_owner;
1146 struct nfs41_server_scope *server_scope;
1147 struct nfs41_impl_id *impl_id;
1150 struct nfs41_create_session_args {
1151 struct nfs_client *client;
1153 uint32_t cb_program;
1154 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1155 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1158 struct nfs41_create_session_res {
1159 struct nfs_client *client;
1162 struct nfs41_reclaim_complete_args {
1163 /* In the future extend to include curr_fh for use with migration */
1164 unsigned char one_fs:1;
1165 struct nfs4_sequence_args seq_args;
1168 struct nfs41_reclaim_complete_res {
1169 struct nfs4_sequence_res seq_res;
1172 #define SECINFO_STYLE_CURRENT_FH 0
1173 #define SECINFO_STYLE_PARENT 1
1174 struct nfs41_secinfo_no_name_args {
1176 struct nfs4_sequence_args seq_args;
1179 struct nfs41_test_stateid_args {
1180 nfs4_stateid *stateid;
1181 struct nfs4_sequence_args seq_args;
1184 struct nfs41_test_stateid_res {
1185 unsigned int status;
1186 struct nfs4_sequence_res seq_res;
1189 struct nfs41_free_stateid_args {
1190 nfs4_stateid *stateid;
1191 struct nfs4_sequence_args seq_args;
1194 struct nfs41_free_stateid_res {
1195 unsigned int status;
1196 struct nfs4_sequence_res seq_res;
1201 struct pnfs_ds_commit_info {
1204 #endif /* CONFIG_NFS_V4_1 */
1208 #define NFS_PAGEVEC_SIZE (8U)
1210 struct nfs_page_array {
1211 struct page **pagevec;
1212 unsigned int npages; /* Max length of pagevec */
1213 struct page *page_array[NFS_PAGEVEC_SIZE];
1216 struct nfs_read_data {
1217 struct nfs_pgio_header *header;
1218 struct list_head list;
1219 struct rpc_task task;
1220 struct nfs_fattr fattr; /* fattr storage */
1221 struct nfs_readargs args;
1222 struct nfs_readres res;
1223 unsigned long timestamp; /* For lease renewal */
1224 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1226 struct nfs_page_array pages;
1227 struct nfs_client *ds_clp; /* pNFS data server */
1230 /* used as flag bits in nfs_pgio_header */
1232 NFS_IOHDR_ERROR = 0,
1235 NFS_IOHDR_NEED_COMMIT,
1236 NFS_IOHDR_NEED_RESCHED,
1239 struct nfs_pgio_header {
1240 struct inode *inode;
1241 struct rpc_cred *cred;
1242 struct list_head pages;
1243 struct list_head rpc_list;
1245 struct nfs_page *req;
1246 struct nfs_writeverf *verf;
1247 struct pnfs_layout_segment *lseg;
1249 const struct rpc_call_ops *mds_ops;
1250 void (*release) (struct nfs_pgio_header *hdr);
1251 const struct nfs_pgio_completion_ops *completion_ops;
1252 struct nfs_direct_req *dreq;
1253 void *layout_private;
1255 /* fields protected by lock */
1257 int error; /* merge with pnfs_error */
1258 unsigned long good_bytes; /* boundary of good data */
1259 unsigned long flags;
1262 struct nfs_read_header {
1263 struct nfs_pgio_header header;
1264 struct nfs_read_data rpc_data;
1267 struct nfs_write_data {
1268 struct nfs_pgio_header *header;
1269 struct list_head list;
1270 struct rpc_task task;
1271 struct nfs_fattr fattr;
1272 struct nfs_writeverf verf;
1273 struct nfs_writeargs args; /* argument struct */
1274 struct nfs_writeres res; /* result struct */
1275 unsigned long timestamp; /* For lease renewal */
1276 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1277 __u64 mds_offset; /* Filelayout dense stripe */
1278 struct nfs_page_array pages;
1279 struct nfs_client *ds_clp; /* pNFS data server */
1282 struct nfs_write_header {
1283 struct nfs_pgio_header header;
1284 struct nfs_write_data rpc_data;
1285 struct nfs_writeverf verf;
1288 struct nfs_mds_commit_info {
1290 unsigned long ncommit;
1291 struct list_head list;
1294 struct nfs_commit_data;
1296 struct nfs_commit_completion_ops {
1297 void (*error_cleanup) (struct nfs_inode *nfsi);
1298 void (*completion) (struct nfs_commit_data *data);
1301 struct nfs_commit_info {
1303 struct nfs_mds_commit_info *mds;
1304 struct pnfs_ds_commit_info *ds;
1305 struct nfs_direct_req *dreq; /* O_DIRECT request */
1306 const struct nfs_commit_completion_ops *completion_ops;
1309 struct nfs_commit_data {
1310 struct rpc_task task;
1311 struct inode *inode;
1312 struct rpc_cred *cred;
1313 struct nfs_fattr fattr;
1314 struct nfs_writeverf verf;
1315 struct list_head pages; /* Coalesced requests we wish to flush */
1316 struct list_head list; /* lists of struct nfs_write_data */
1317 struct nfs_direct_req *dreq; /* O_DIRECT request */
1318 struct nfs_commitargs args; /* argument struct */
1319 struct nfs_commitres res; /* result struct */
1320 struct nfs_open_context *context;
1321 struct pnfs_layout_segment *lseg;
1322 struct nfs_client *ds_clp; /* pNFS data server */
1323 int ds_commit_index;
1324 const struct rpc_call_ops *mds_ops;
1325 const struct nfs_commit_completion_ops *completion_ops;
1326 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1329 struct nfs_pgio_completion_ops {
1330 void (*error_cleanup)(struct list_head *head);
1331 void (*init_hdr)(struct nfs_pgio_header *hdr);
1332 void (*completion)(struct nfs_pgio_header *hdr);
1335 struct nfs_unlinkdata {
1336 struct hlist_node list;
1337 struct nfs_removeargs args;
1338 struct nfs_removeres res;
1340 struct rpc_cred *cred;
1341 struct nfs_fattr dir_attr;
1344 struct nfs_renamedata {
1345 struct nfs_renameargs args;
1346 struct nfs_renameres res;
1347 struct rpc_cred *cred;
1348 struct inode *old_dir;
1349 struct dentry *old_dentry;
1350 struct nfs_fattr old_fattr;
1351 struct inode *new_dir;
1352 struct dentry *new_dentry;
1353 struct nfs_fattr new_fattr;
1356 struct nfs_access_entry;
1359 struct nfs_subversion;
1360 struct nfs_mount_info;
1361 struct nfs_client_initdata;
1362 struct nfs_pageio_descriptor;
1365 * RPC procedure vector for NFSv2/NFSv3 demuxing
1367 struct nfs_rpc_ops {
1368 u32 version; /* Protocol version */
1369 const struct dentry_operations *dentry_ops;
1370 const struct inode_operations *dir_inode_ops;
1371 const struct inode_operations *file_inode_ops;
1372 const struct file_operations *file_ops;
1374 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1375 struct nfs_fsinfo *);
1376 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1377 struct nfs_fh *, struct nfs_fattr *);
1378 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1379 struct nfs_subversion *);
1380 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1381 struct nfs_fattr *);
1382 int (*setattr) (struct dentry *, struct nfs_fattr *,
1384 int (*lookup) (struct inode *, struct qstr *,
1385 struct nfs_fh *, struct nfs_fattr *);
1386 int (*access) (struct inode *, struct nfs_access_entry *);
1387 int (*readlink)(struct inode *, struct page *, unsigned int,
1389 int (*create) (struct inode *, struct dentry *,
1390 struct iattr *, int);
1391 int (*remove) (struct inode *, struct qstr *);
1392 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1393 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1394 int (*unlink_done) (struct rpc_task *, struct inode *);
1395 int (*rename) (struct inode *, struct qstr *,
1396 struct inode *, struct qstr *);
1397 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1398 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1399 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1400 int (*link) (struct inode *, struct inode *, struct qstr *);
1401 int (*symlink) (struct inode *, struct dentry *, struct page *,
1402 unsigned int, struct iattr *);
1403 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1404 int (*rmdir) (struct inode *, struct qstr *);
1405 int (*readdir) (struct dentry *, struct rpc_cred *,
1406 u64, struct page **, unsigned int, int);
1407 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1409 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1410 struct nfs_fsstat *);
1411 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1412 struct nfs_fsinfo *);
1413 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1414 struct nfs_pathconf *);
1415 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1416 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1417 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1418 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1419 const struct nfs_pgio_completion_ops *);
1420 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1421 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1422 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1423 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1424 const struct nfs_pgio_completion_ops *);
1425 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1426 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1427 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1428 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1429 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1430 int (*lock)(struct file *, int, struct file_lock *);
1431 int (*lock_check_bounds)(const struct file_lock *);
1432 void (*clear_acl_cache)(struct inode *);
1433 void (*close_context)(struct nfs_open_context *ctx, int);
1434 struct inode * (*open_context) (struct inode *dir,
1435 struct nfs_open_context *ctx,
1437 struct iattr *iattr);
1438 int (*have_delegation)(struct inode *, fmode_t);
1439 int (*return_delegation)(struct inode *);
1440 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1442 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1443 const char *, rpc_authflavor_t);
1444 void (*free_client) (struct nfs_client *);
1445 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1446 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1447 struct nfs_fattr *, rpc_authflavor_t);
1451 * NFS_CALL(getattr, inode, (fattr));
1453 * NFS_PROTO(inode)->getattr(fattr);
1455 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1458 * Function vectors etc. for the NFS client
1460 extern const struct nfs_rpc_ops nfs_v2_clientops;
1461 extern const struct nfs_rpc_ops nfs_v3_clientops;
1462 extern const struct nfs_rpc_ops nfs_v4_clientops;
1463 extern const struct rpc_version nfs_version2;
1464 extern const struct rpc_version nfs_version3;
1465 extern const struct rpc_version nfs_version4;
1467 extern const struct rpc_version nfsacl_version3;
1468 extern const struct rpc_program nfsacl_program;