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)
28 * Helper for checking equality between 2 fsids.
30 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
32 return a->major == b->major && a->minor == b->minor;
35 struct nfs4_threshold {
45 unsigned int valid; /* which fields are valid */
63 __u64 mounted_on_fileid;
64 struct timespec atime;
65 struct timespec mtime;
66 struct timespec ctime;
67 __u64 change_attr; /* NFSv4 change attribute */
68 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
69 __u64 pre_size; /* pre_op_attr.size */
70 struct timespec pre_mtime; /* pre_op_attr.mtime */
71 struct timespec pre_ctime; /* pre_op_attr.ctime */
72 unsigned long time_start;
73 unsigned long gencount;
74 struct nfs4_string *owner_name;
75 struct nfs4_string *group_name;
76 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
128 * Maximal number of supported layout drivers.
130 #define NFS_MAX_LAYOUT_TYPES 8
133 * Info on the file system
136 struct nfs_fattr *fattr; /* Post-op attributes */
137 __u32 rtmax; /* max. read transfer size */
138 __u32 rtpref; /* pref. read transfer size */
139 __u32 rtmult; /* reads should be multiple of this */
140 __u32 wtmax; /* max. write transfer size */
141 __u32 wtpref; /* pref. write transfer size */
142 __u32 wtmult; /* writes should be multiple of this */
143 __u32 dtpref; /* pref. readdir transfer size */
145 struct timespec time_delta; /* server time granularity */
146 __u32 lease_time; /* in seconds */
147 __u32 nlayouttypes; /* number of layouttypes */
148 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */
149 __u32 blksize; /* preferred pnfs io block size */
150 __u32 clone_blksize; /* granularity of a CLONE operation */
154 struct nfs_fattr *fattr; /* Post-op attributes */
155 __u64 tbytes; /* total size in bytes */
156 __u64 fbytes; /* # of free bytes */
157 __u64 abytes; /* # of bytes available to user */
158 __u64 tfiles; /* # of files */
159 __u64 ffiles; /* # of free files */
160 __u64 afiles; /* # of files available to user */
164 __u32 tsize; /* Server transfer size */
165 __u32 bsize; /* Filesystem block size */
166 __u32 blocks; /* No. of "bsize" blocks on filesystem */
167 __u32 bfree; /* No. of free "bsize" blocks */
168 __u32 bavail; /* No. of available "bsize" blocks */
171 struct nfs_pathconf {
172 struct nfs_fattr *fattr; /* Post-op attributes */
173 __u32 max_link; /* max # of hard links */
174 __u32 max_namelen; /* max name length */
177 struct nfs4_change_info {
185 /* nfs41 sessions channel attributes */
186 struct nfs4_channel_attrs {
189 u32 max_resp_sz_cached;
195 struct nfs4_sequence_args {
196 struct nfs4_slot *sa_slot;
197 u8 sa_cache_this : 1,
201 struct nfs4_sequence_res {
202 struct nfs4_slot *sr_slot; /* slot used to send request */
203 unsigned long sr_timestamp;
204 int sr_status; /* sequence operation status */
206 u32 sr_highest_slotid;
207 u32 sr_target_highest_slotid;
210 struct nfs4_get_lease_time_args {
211 struct nfs4_sequence_args la_seq_args;
214 struct nfs4_get_lease_time_res {
215 struct nfs4_sequence_res lr_seq_res;
216 struct nfs_fsinfo *lr_fsinfo;
219 #define PNFS_LAYOUT_MAXSIZE 4096
221 struct nfs4_layoutdriver_data {
227 struct pnfs_layout_range {
233 struct nfs4_layoutget_args {
234 struct nfs4_sequence_args seq_args;
236 struct pnfs_layout_range range;
240 struct nfs_open_context *ctx;
241 nfs4_stateid stateid;
242 struct nfs4_layoutdriver_data layout;
245 struct nfs4_layoutget_res {
246 struct nfs4_sequence_res seq_res;
247 __u32 return_on_close;
248 struct pnfs_layout_range range;
250 nfs4_stateid stateid;
251 struct nfs4_layoutdriver_data *layoutp;
254 struct nfs4_layoutget {
255 struct nfs4_layoutget_args args;
256 struct nfs4_layoutget_res res;
257 struct rpc_cred *cred;
261 struct nfs4_getdeviceinfo_args {
262 struct nfs4_sequence_args seq_args;
263 struct pnfs_device *pdev;
267 struct nfs4_getdeviceinfo_res {
268 struct nfs4_sequence_res seq_res;
269 struct pnfs_device *pdev;
273 struct nfs4_layoutcommit_args {
274 struct nfs4_sequence_args seq_args;
275 nfs4_stateid stateid;
276 __u64 lastbytewritten;
279 size_t layoutupdate_len;
280 struct page *layoutupdate_page;
281 struct page **layoutupdate_pages;
285 struct nfs4_layoutcommit_res {
286 struct nfs4_sequence_res seq_res;
287 struct nfs_fattr *fattr;
288 const struct nfs_server *server;
292 struct nfs4_layoutcommit_data {
293 struct rpc_task task;
294 struct nfs_fattr fattr;
295 struct list_head lseg_list;
296 struct rpc_cred *cred;
298 struct nfs4_layoutcommit_args args;
299 struct nfs4_layoutcommit_res res;
302 struct nfs4_layoutreturn_args {
303 struct nfs4_sequence_args seq_args;
304 struct pnfs_layout_hdr *layout;
306 struct pnfs_layout_range range;
307 nfs4_stateid stateid;
311 struct nfs4_layoutreturn_res {
312 struct nfs4_sequence_res seq_res;
314 nfs4_stateid stateid;
317 struct nfs4_layoutreturn {
318 struct nfs4_layoutreturn_args args;
319 struct nfs4_layoutreturn_res res;
320 struct rpc_cred *cred;
321 struct nfs_client *clp;
326 #define PNFS_LAYOUTSTATS_MAXSIZE 256
328 struct nfs42_layoutstat_args;
329 struct nfs42_layoutstat_devinfo;
330 typedef void (*layoutstats_encode_t)(struct xdr_stream *,
331 struct nfs42_layoutstat_args *,
332 struct nfs42_layoutstat_devinfo *);
334 /* Per file per deviceid layoutstats */
335 struct nfs42_layoutstat_devinfo {
336 struct nfs4_deviceid dev_id;
344 layoutstats_encode_t layoutstats_encode;
345 void *layout_private;
348 struct nfs42_layoutstat_args {
349 struct nfs4_sequence_args seq_args;
352 nfs4_stateid stateid;
354 struct nfs42_layoutstat_devinfo *devinfo;
357 struct nfs42_layoutstat_res {
358 struct nfs4_sequence_res seq_res;
363 struct nfs42_layoutstat_data {
365 struct nfs42_layoutstat_args args;
366 struct nfs42_layoutstat_res res;
369 struct nfs42_clone_args {
370 struct nfs4_sequence_args seq_args;
371 struct nfs_fh *src_fh;
372 struct nfs_fh *dst_fh;
373 nfs4_stateid src_stateid;
374 nfs4_stateid dst_stateid;
378 const u32 *dst_bitmask;
381 struct nfs42_clone_res {
382 struct nfs4_sequence_res seq_res;
383 unsigned int rpc_status;
384 struct nfs_fattr *dst_fattr;
385 const struct nfs_server *server;
388 struct stateowner_id {
394 * Arguments to the open call.
396 struct nfs_openargs {
397 struct nfs4_sequence_args seq_args;
398 const struct nfs_fh * fh;
399 struct nfs_seqid * seqid;
405 struct stateowner_id id;
408 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
409 nfs4_verifier verifier; /* EXCLUSIVE */
411 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
412 fmode_t delegation_type; /* CLAIM_PREVIOUS */
414 const struct qstr * name;
415 const struct nfs_server *server; /* Needed for ID mapping */
417 const u32 * open_bitmap;
418 enum open_claim_type4 claim;
419 enum createmode4 createmode;
420 const struct nfs4_label *label;
424 struct nfs4_sequence_res seq_res;
425 nfs4_stateid stateid;
427 struct nfs4_change_info cinfo;
429 struct nfs_fattr * f_attr;
430 struct nfs4_label *f_label;
431 struct nfs_seqid * seqid;
432 const struct nfs_server *server;
433 fmode_t delegation_type;
434 nfs4_stateid delegation;
435 unsigned long pagemod_limit;
437 __u32 attrset[NFS4_BITMAP_SIZE];
438 struct nfs4_string *owner;
439 struct nfs4_string *group_owner;
440 __u32 access_request;
441 __u32 access_supported;
446 * Arguments to the open_confirm call.
448 struct nfs_open_confirmargs {
449 struct nfs4_sequence_args seq_args;
450 const struct nfs_fh * fh;
451 nfs4_stateid * stateid;
452 struct nfs_seqid * seqid;
455 struct nfs_open_confirmres {
456 struct nfs4_sequence_res seq_res;
457 nfs4_stateid stateid;
458 struct nfs_seqid * seqid;
462 * Arguments to the close call.
464 struct nfs_closeargs {
465 struct nfs4_sequence_args seq_args;
467 nfs4_stateid stateid;
468 struct nfs_seqid * seqid;
472 struct nfs4_layoutreturn_args *lr_args;
475 struct nfs_closeres {
476 struct nfs4_sequence_res seq_res;
477 nfs4_stateid stateid;
478 struct nfs_fattr * fattr;
479 struct nfs_seqid * seqid;
480 const struct nfs_server *server;
481 struct nfs4_layoutreturn_res *lr_res;
485 * * Arguments to the lock,lockt, and locku call.
493 struct nfs_lock_args {
494 struct nfs4_sequence_args seq_args;
496 struct file_lock * fl;
497 struct nfs_seqid * lock_seqid;
498 nfs4_stateid lock_stateid;
499 struct nfs_seqid * open_seqid;
500 nfs4_stateid open_stateid;
501 struct nfs_lowner lock_owner;
502 unsigned char block : 1;
503 unsigned char reclaim : 1;
504 unsigned char new_lock : 1;
505 unsigned char new_lock_owner : 1;
508 struct nfs_lock_res {
509 struct nfs4_sequence_res seq_res;
510 nfs4_stateid stateid;
511 struct nfs_seqid * lock_seqid;
512 struct nfs_seqid * open_seqid;
515 struct nfs_locku_args {
516 struct nfs4_sequence_args seq_args;
518 struct file_lock * fl;
519 struct nfs_seqid * seqid;
520 nfs4_stateid stateid;
523 struct nfs_locku_res {
524 struct nfs4_sequence_res seq_res;
525 nfs4_stateid stateid;
526 struct nfs_seqid * seqid;
529 struct nfs_lockt_args {
530 struct nfs4_sequence_args seq_args;
532 struct file_lock * fl;
533 struct nfs_lowner lock_owner;
536 struct nfs_lockt_res {
537 struct nfs4_sequence_res seq_res;
538 struct file_lock * denied; /* LOCK, LOCKT failed */
541 struct nfs_release_lockowner_args {
542 struct nfs4_sequence_args seq_args;
543 struct nfs_lowner lock_owner;
546 struct nfs_release_lockowner_res {
547 struct nfs4_sequence_res seq_res;
550 struct nfs4_delegreturnargs {
551 struct nfs4_sequence_args seq_args;
552 const struct nfs_fh *fhandle;
553 const nfs4_stateid *stateid;
555 struct nfs4_layoutreturn_args *lr_args;
558 struct nfs4_delegreturnres {
559 struct nfs4_sequence_res seq_res;
560 struct nfs_fattr * fattr;
561 struct nfs_server *server;
562 struct nfs4_layoutreturn_res *lr_res;
567 * Arguments to the write call.
569 struct nfs_write_verifier {
573 struct nfs_writeverf {
574 struct nfs_write_verifier verifier;
575 enum nfs3_stable_how committed;
579 * Arguments shared by the read and write call.
581 struct nfs_pgio_args {
582 struct nfs4_sequence_args seq_args;
584 struct nfs_open_context *context;
585 struct nfs_lock_context *lock_context;
586 nfs4_stateid stateid;
590 struct page ** pages;
591 const u32 * bitmask; /* used by write */
592 enum nfs3_stable_how stable; /* used by write */
595 struct nfs_pgio_res {
596 struct nfs4_sequence_res seq_res;
597 struct nfs_fattr * fattr;
600 int eof; /* used by read */
601 struct nfs_writeverf * verf; /* used by write */
602 const struct nfs_server *server; /* used by write */
607 * Arguments to the commit call.
609 struct nfs_commitargs {
610 struct nfs4_sequence_args seq_args;
617 struct nfs_commitres {
618 struct nfs4_sequence_res seq_res;
620 struct nfs_fattr *fattr;
621 struct nfs_writeverf *verf;
622 const struct nfs_server *server;
626 * Common arguments to the unlink call
628 struct nfs_removeargs {
629 struct nfs4_sequence_args seq_args;
630 const struct nfs_fh *fh;
634 struct nfs_removeres {
635 struct nfs4_sequence_res seq_res;
636 struct nfs_server *server;
637 struct nfs_fattr *dir_attr;
638 struct nfs4_change_info cinfo;
642 * Common arguments to the rename call
644 struct nfs_renameargs {
645 struct nfs4_sequence_args seq_args;
646 const struct nfs_fh *old_dir;
647 const struct nfs_fh *new_dir;
648 const struct qstr *old_name;
649 const struct qstr *new_name;
652 struct nfs_renameres {
653 struct nfs4_sequence_res seq_res;
654 struct nfs_server *server;
655 struct nfs4_change_info old_cinfo;
656 struct nfs_fattr *old_fattr;
657 struct nfs4_change_info new_cinfo;
658 struct nfs_fattr *new_fattr;
661 /* parsed sec= options */
662 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
663 struct nfs_auth_info {
664 unsigned int flavor_len;
665 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
669 * Argument struct for decode_entry function
679 struct nfs_fattr * fattr;
680 struct nfs4_label *label;
681 unsigned char d_type;
682 struct nfs_server * server;
686 * The following types are for NFSv2 only.
688 struct nfs_sattrargs {
690 struct iattr * sattr;
693 struct nfs_diropargs {
699 struct nfs_createargs {
703 struct iattr * sattr;
706 struct nfs_setattrargs {
707 struct nfs4_sequence_args seq_args;
709 nfs4_stateid stateid;
711 const struct nfs_server * server; /* Needed for name mapping */
713 const struct nfs4_label *label;
716 struct nfs_setaclargs {
717 struct nfs4_sequence_args seq_args;
720 struct page ** acl_pages;
723 struct nfs_setaclres {
724 struct nfs4_sequence_res seq_res;
727 struct nfs_getaclargs {
728 struct nfs4_sequence_args seq_args;
731 struct page ** acl_pages;
734 /* getxattr ACL interface flags */
735 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
736 struct nfs_getaclres {
737 struct nfs4_sequence_res seq_res;
739 size_t acl_data_offset;
741 struct page * acl_scratch;
744 struct nfs_setattrres {
745 struct nfs4_sequence_res seq_res;
746 struct nfs_fattr * fattr;
747 struct nfs4_label *label;
748 const struct nfs_server * server;
751 struct nfs_linkargs {
752 struct nfs_fh * fromfh;
753 struct nfs_fh * tofh;
758 struct nfs_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 nfs_readdirargs {
771 struct page ** pages;
774 struct nfs3_getaclargs {
777 struct page ** pages;
780 struct nfs3_setaclargs {
781 struct inode * inode;
783 struct posix_acl * acl_access;
784 struct posix_acl * acl_default;
787 struct page ** pages;
792 struct nfs_fattr * fattr;
795 struct nfs_readlinkargs {
799 struct page ** pages;
802 struct nfs3_sattrargs {
804 struct iattr * sattr;
806 struct timespec guardtime;
809 struct nfs3_diropargs {
815 struct nfs3_accessargs {
820 struct nfs3_createargs {
824 struct iattr * sattr;
825 enum nfs3_createmode createmode;
829 struct nfs3_mkdirargs {
833 struct iattr * sattr;
836 struct nfs3_symlinkargs {
837 struct nfs_fh * fromfh;
838 const char * fromname;
839 unsigned int fromlen;
840 struct page ** pages;
841 unsigned int pathlen;
842 struct iattr * sattr;
845 struct nfs3_mknodargs {
849 enum nfs3_ftype type;
850 struct iattr * sattr;
854 struct nfs3_linkargs {
855 struct nfs_fh * fromfh;
856 struct nfs_fh * tofh;
861 struct nfs3_readdirargs {
867 struct page ** pages;
870 struct nfs3_diropres {
871 struct nfs_fattr * dir_attr;
873 struct nfs_fattr * fattr;
876 struct nfs3_accessres {
877 struct nfs_fattr * fattr;
881 struct nfs3_readlinkargs {
885 struct page ** pages;
888 struct nfs3_linkres {
889 struct nfs_fattr * dir_attr;
890 struct nfs_fattr * fattr;
893 struct nfs3_readdirres {
894 struct nfs_fattr * dir_attr;
899 struct nfs3_getaclres {
900 struct nfs_fattr * fattr;
902 unsigned int acl_access_count;
903 unsigned int acl_default_count;
904 struct posix_acl * acl_access;
905 struct posix_acl * acl_default;
908 #if IS_ENABLED(CONFIG_NFS_V4)
910 typedef u64 clientid4;
912 struct nfs4_accessargs {
913 struct nfs4_sequence_args seq_args;
914 const struct nfs_fh * fh;
919 struct nfs4_accessres {
920 struct nfs4_sequence_res seq_res;
921 const struct nfs_server * server;
922 struct nfs_fattr * fattr;
927 struct nfs4_create_arg {
928 struct nfs4_sequence_args seq_args;
932 struct page ** pages;
934 } symlink; /* NF4LNK */
938 } device; /* NF4BLK, NF4CHR */
940 const struct qstr * name;
941 const struct nfs_server * server;
942 const struct iattr * attrs;
943 const struct nfs_fh * dir_fh;
945 const struct nfs4_label *label;
948 struct nfs4_create_res {
949 struct nfs4_sequence_res seq_res;
950 const struct nfs_server * server;
952 struct nfs_fattr * fattr;
953 struct nfs4_label *label;
954 struct nfs4_change_info dir_cinfo;
957 struct nfs4_fsinfo_arg {
958 struct nfs4_sequence_args seq_args;
959 const struct nfs_fh * fh;
963 struct nfs4_fsinfo_res {
964 struct nfs4_sequence_res seq_res;
965 struct nfs_fsinfo *fsinfo;
968 struct nfs4_getattr_arg {
969 struct nfs4_sequence_args seq_args;
970 const struct nfs_fh * fh;
974 struct nfs4_getattr_res {
975 struct nfs4_sequence_res seq_res;
976 const struct nfs_server * server;
977 struct nfs_fattr * fattr;
978 struct nfs4_label *label;
981 struct nfs4_link_arg {
982 struct nfs4_sequence_args seq_args;
983 const struct nfs_fh * fh;
984 const struct nfs_fh * dir_fh;
985 const struct qstr * name;
989 struct nfs4_link_res {
990 struct nfs4_sequence_res seq_res;
991 const struct nfs_server * server;
992 struct nfs_fattr * fattr;
993 struct nfs4_label *label;
994 struct nfs4_change_info cinfo;
995 struct nfs_fattr * dir_attr;
999 struct nfs4_lookup_arg {
1000 struct nfs4_sequence_args seq_args;
1001 const struct nfs_fh * dir_fh;
1002 const struct qstr * name;
1003 const u32 * bitmask;
1006 struct nfs4_lookup_res {
1007 struct nfs4_sequence_res seq_res;
1008 const struct nfs_server * server;
1009 struct nfs_fattr * fattr;
1011 struct nfs4_label *label;
1014 struct nfs4_lookup_root_arg {
1015 struct nfs4_sequence_args seq_args;
1016 const u32 * bitmask;
1019 struct nfs4_pathconf_arg {
1020 struct nfs4_sequence_args seq_args;
1021 const struct nfs_fh * fh;
1022 const u32 * bitmask;
1025 struct nfs4_pathconf_res {
1026 struct nfs4_sequence_res seq_res;
1027 struct nfs_pathconf *pathconf;
1030 struct nfs4_readdir_arg {
1031 struct nfs4_sequence_args seq_args;
1032 const struct nfs_fh * fh;
1034 nfs4_verifier verifier;
1036 struct page ** pages; /* zero-copy data */
1037 unsigned int pgbase; /* zero-copy data */
1038 const u32 * bitmask;
1042 struct nfs4_readdir_res {
1043 struct nfs4_sequence_res seq_res;
1044 nfs4_verifier verifier;
1045 unsigned int pgbase;
1048 struct nfs4_readlink {
1049 struct nfs4_sequence_args seq_args;
1050 const struct nfs_fh * fh;
1051 unsigned int pgbase;
1052 unsigned int pglen; /* zero-copy data */
1053 struct page ** pages; /* zero-copy data */
1056 struct nfs4_readlink_res {
1057 struct nfs4_sequence_res seq_res;
1060 struct nfs4_setclientid {
1061 const nfs4_verifier * sc_verifier;
1063 unsigned int sc_netid_len;
1064 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1065 unsigned int sc_uaddr_len;
1066 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1067 struct nfs_client *sc_clnt;
1068 struct rpc_cred *sc_cred;
1071 struct nfs4_setclientid_res {
1073 nfs4_verifier confirm;
1076 struct nfs4_statfs_arg {
1077 struct nfs4_sequence_args seq_args;
1078 const struct nfs_fh * fh;
1079 const u32 * bitmask;
1082 struct nfs4_statfs_res {
1083 struct nfs4_sequence_res seq_res;
1084 struct nfs_fsstat *fsstat;
1087 struct nfs4_server_caps_arg {
1088 struct nfs4_sequence_args seq_args;
1089 struct nfs_fh *fhandle;
1090 const u32 * bitmask;
1093 struct nfs4_server_caps_res {
1094 struct nfs4_sequence_res seq_res;
1095 u32 attr_bitmask[3];
1096 u32 exclcreat_bitmask[3];
1103 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1104 struct nfs4_pathname {
1105 unsigned int ncomponents;
1106 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1109 #define NFS4_FS_LOCATION_MAXSERVERS 10
1110 struct nfs4_fs_location {
1111 unsigned int nservers;
1112 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1113 struct nfs4_pathname rootpath;
1116 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1117 struct nfs4_fs_locations {
1118 struct nfs_fattr fattr;
1119 const struct nfs_server *server;
1120 struct nfs4_pathname fs_path;
1122 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1125 struct nfs4_fs_locations_arg {
1126 struct nfs4_sequence_args seq_args;
1127 const struct nfs_fh *dir_fh;
1128 const struct nfs_fh *fh;
1129 const struct qstr *name;
1133 unsigned char migration:1, renew:1;
1136 struct nfs4_fs_locations_res {
1137 struct nfs4_sequence_res seq_res;
1138 struct nfs4_fs_locations *fs_locations;
1139 unsigned char migration:1, renew:1;
1142 struct nfs4_secinfo4 {
1144 struct rpcsec_gss_info flavor_info;
1147 struct nfs4_secinfo_flavors {
1148 unsigned int num_flavors;
1149 struct nfs4_secinfo4 flavors[0];
1152 struct nfs4_secinfo_arg {
1153 struct nfs4_sequence_args seq_args;
1154 const struct nfs_fh *dir_fh;
1155 const struct qstr *name;
1158 struct nfs4_secinfo_res {
1159 struct nfs4_sequence_res seq_res;
1160 struct nfs4_secinfo_flavors *flavors;
1163 struct nfs4_fsid_present_arg {
1164 struct nfs4_sequence_args seq_args;
1165 const struct nfs_fh *fh;
1167 unsigned char renew:1;
1170 struct nfs4_fsid_present_res {
1171 struct nfs4_sequence_res seq_res;
1173 unsigned char renew:1;
1176 #endif /* CONFIG_NFS_V4 */
1183 #ifdef CONFIG_NFS_V4_1
1185 struct pnfs_commit_bucket {
1186 struct list_head written;
1187 struct list_head committing;
1188 struct pnfs_layout_segment *wlseg;
1189 struct pnfs_layout_segment *clseg;
1190 struct nfs_writeverf direct_verf;
1193 struct pnfs_ds_commit_info {
1197 struct pnfs_commit_bucket *buckets;
1200 struct nfs41_state_protection {
1202 struct nfs4_op_map enforce;
1203 struct nfs4_op_map allow;
1206 struct nfs41_exchange_id_args {
1207 struct nfs_client *client;
1208 nfs4_verifier *verifier;
1210 struct nfs41_state_protection state_protect;
1213 struct nfs41_server_owner {
1215 uint32_t major_id_sz;
1216 char major_id[NFS4_OPAQUE_LIMIT];
1219 struct nfs41_server_scope {
1220 uint32_t server_scope_sz;
1221 char server_scope[NFS4_OPAQUE_LIMIT];
1224 struct nfs41_impl_id {
1225 char domain[NFS4_OPAQUE_LIMIT + 1];
1226 char name[NFS4_OPAQUE_LIMIT + 1];
1227 struct nfstime4 date;
1230 struct nfs41_bind_conn_to_session_args {
1231 struct nfs_client *client;
1232 struct nfs4_sessionid sessionid;
1234 bool use_conn_in_rdma_mode;
1237 struct nfs41_bind_conn_to_session_res {
1238 struct nfs4_sessionid sessionid;
1240 bool use_conn_in_rdma_mode;
1243 struct nfs41_exchange_id_res {
1247 struct nfs41_server_owner *server_owner;
1248 struct nfs41_server_scope *server_scope;
1249 struct nfs41_impl_id *impl_id;
1250 struct nfs41_state_protection state_protect;
1253 struct nfs41_create_session_args {
1254 struct nfs_client *client;
1258 uint32_t cb_program;
1259 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1260 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1263 struct nfs41_create_session_res {
1264 struct nfs4_sessionid sessionid;
1267 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1268 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1271 struct nfs41_reclaim_complete_args {
1272 struct nfs4_sequence_args seq_args;
1273 /* In the future extend to include curr_fh for use with migration */
1274 unsigned char one_fs:1;
1277 struct nfs41_reclaim_complete_res {
1278 struct nfs4_sequence_res seq_res;
1281 #define SECINFO_STYLE_CURRENT_FH 0
1282 #define SECINFO_STYLE_PARENT 1
1283 struct nfs41_secinfo_no_name_args {
1284 struct nfs4_sequence_args seq_args;
1288 struct nfs41_test_stateid_args {
1289 struct nfs4_sequence_args seq_args;
1290 nfs4_stateid *stateid;
1293 struct nfs41_test_stateid_res {
1294 struct nfs4_sequence_res seq_res;
1295 unsigned int status;
1298 struct nfs41_free_stateid_args {
1299 struct nfs4_sequence_args seq_args;
1300 nfs4_stateid stateid;
1303 struct nfs41_free_stateid_res {
1304 struct nfs4_sequence_res seq_res;
1305 unsigned int status;
1309 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1311 kfree(cinfo->buckets);
1316 struct pnfs_ds_commit_info {
1320 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1324 #endif /* CONFIG_NFS_V4_1 */
1326 #ifdef CONFIG_NFS_V4_2
1327 struct nfs42_falloc_args {
1328 struct nfs4_sequence_args seq_args;
1330 struct nfs_fh *falloc_fh;
1331 nfs4_stateid falloc_stateid;
1334 const u32 *falloc_bitmask;
1337 struct nfs42_falloc_res {
1338 struct nfs4_sequence_res seq_res;
1339 unsigned int status;
1341 struct nfs_fattr *falloc_fattr;
1342 const struct nfs_server *falloc_server;
1345 struct nfs42_copy_args {
1346 struct nfs4_sequence_args seq_args;
1348 struct nfs_fh *src_fh;
1349 nfs4_stateid src_stateid;
1352 struct nfs_fh *dst_fh;
1353 nfs4_stateid dst_stateid;
1359 struct nfs42_write_res {
1361 struct nfs_writeverf verifier;
1364 struct nfs42_copy_res {
1365 struct nfs4_sequence_res seq_res;
1366 struct nfs42_write_res write_res;
1371 struct nfs42_seek_args {
1372 struct nfs4_sequence_args seq_args;
1374 struct nfs_fh *sa_fh;
1375 nfs4_stateid sa_stateid;
1380 struct nfs42_seek_res {
1381 struct nfs4_sequence_res seq_res;
1382 unsigned int status;
1391 #define NFS_PAGEVEC_SIZE (8U)
1393 struct nfs_page_array {
1394 struct page **pagevec;
1395 unsigned int npages; /* Max length of pagevec */
1396 struct page *page_array[NFS_PAGEVEC_SIZE];
1399 /* used as flag bits in nfs_pgio_header */
1401 NFS_IOHDR_ERROR = 0,
1407 struct nfs_pgio_header {
1408 struct inode *inode;
1409 struct rpc_cred *cred;
1410 struct list_head pages;
1411 struct nfs_page *req;
1412 struct nfs_writeverf verf; /* Used for writes */
1413 struct pnfs_layout_segment *lseg;
1415 const struct rpc_call_ops *mds_ops;
1416 void (*release) (struct nfs_pgio_header *hdr);
1417 const struct nfs_pgio_completion_ops *completion_ops;
1418 const struct nfs_rw_ops *rw_ops;
1419 struct nfs_direct_req *dreq;
1420 void *layout_private;
1422 /* fields protected by lock */
1424 int error; /* merge with pnfs_error */
1425 unsigned long good_bytes; /* boundary of good data */
1426 unsigned long flags;
1431 struct rpc_task task;
1432 struct nfs_fattr fattr;
1433 struct nfs_pgio_args args; /* argument struct */
1434 struct nfs_pgio_res res; /* result struct */
1435 unsigned long timestamp; /* For lease renewal */
1436 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1437 __u64 mds_offset; /* Filelayout dense stripe */
1438 struct nfs_page_array page_array;
1439 struct nfs_client *ds_clp; /* pNFS data server */
1440 int ds_commit_idx; /* ds index if ds_clp is set */
1441 int pgio_mirror_idx;/* mirror index in pgio layer */
1444 struct nfs_mds_commit_info {
1446 unsigned long ncommit;
1447 struct list_head list;
1450 struct nfs_commit_info;
1451 struct nfs_commit_data;
1453 struct nfs_commit_completion_ops {
1454 void (*completion) (struct nfs_commit_data *data);
1455 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
1458 struct nfs_commit_info {
1459 struct inode *inode; /* Needed for inode->i_lock */
1460 struct nfs_mds_commit_info *mds;
1461 struct pnfs_ds_commit_info *ds;
1462 struct nfs_direct_req *dreq; /* O_DIRECT request */
1463 const struct nfs_commit_completion_ops *completion_ops;
1466 struct nfs_commit_data {
1467 struct rpc_task task;
1468 struct inode *inode;
1469 struct rpc_cred *cred;
1470 struct nfs_fattr fattr;
1471 struct nfs_writeverf verf;
1472 struct list_head pages; /* Coalesced requests we wish to flush */
1473 struct list_head list; /* lists of struct nfs_write_data */
1474 struct nfs_direct_req *dreq; /* O_DIRECT request */
1475 struct nfs_commitargs args; /* argument struct */
1476 struct nfs_commitres res; /* result struct */
1477 struct nfs_open_context *context;
1478 struct pnfs_layout_segment *lseg;
1479 struct nfs_client *ds_clp; /* pNFS data server */
1480 int ds_commit_index;
1482 const struct rpc_call_ops *mds_ops;
1483 const struct nfs_commit_completion_ops *completion_ops;
1484 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1485 unsigned long flags;
1488 struct nfs_pgio_completion_ops {
1489 void (*error_cleanup)(struct list_head *head);
1490 void (*init_hdr)(struct nfs_pgio_header *hdr);
1491 void (*completion)(struct nfs_pgio_header *hdr);
1492 void (*reschedule_io)(struct nfs_pgio_header *hdr);
1495 struct nfs_unlinkdata {
1496 struct nfs_removeargs args;
1497 struct nfs_removeres res;
1498 struct dentry *dentry;
1499 wait_queue_head_t wq;
1500 struct rpc_cred *cred;
1501 struct nfs_fattr dir_attr;
1505 struct nfs_renamedata {
1506 struct nfs_renameargs args;
1507 struct nfs_renameres res;
1508 struct rpc_cred *cred;
1509 struct inode *old_dir;
1510 struct dentry *old_dentry;
1511 struct nfs_fattr old_fattr;
1512 struct inode *new_dir;
1513 struct dentry *new_dentry;
1514 struct nfs_fattr new_fattr;
1515 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1519 struct nfs_access_entry;
1522 struct nfs_subversion;
1523 struct nfs_mount_info;
1524 struct nfs_client_initdata;
1525 struct nfs_pageio_descriptor;
1528 * RPC procedure vector for NFSv2/NFSv3 demuxing
1530 struct nfs_rpc_ops {
1531 u32 version; /* Protocol version */
1532 const struct dentry_operations *dentry_ops;
1533 const struct inode_operations *dir_inode_ops;
1534 const struct inode_operations *file_inode_ops;
1535 const struct file_operations *file_ops;
1537 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1538 struct nfs_fsinfo *);
1539 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1540 struct nfs_fh *, struct nfs_fattr *);
1541 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1542 struct nfs_subversion *);
1543 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1544 struct nfs_fattr *, struct nfs4_label *);
1545 int (*setattr) (struct dentry *, struct nfs_fattr *,
1547 int (*lookup) (struct inode *, const struct qstr *,
1548 struct nfs_fh *, struct nfs_fattr *,
1549 struct nfs4_label *);
1550 int (*access) (struct inode *, struct nfs_access_entry *);
1551 int (*readlink)(struct inode *, struct page *, unsigned int,
1553 int (*create) (struct inode *, struct dentry *,
1554 struct iattr *, int);
1555 int (*remove) (struct inode *, const struct qstr *);
1556 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1557 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1558 int (*unlink_done) (struct rpc_task *, struct inode *);
1559 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1560 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1561 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1562 int (*link) (struct inode *, struct inode *, const struct qstr *);
1563 int (*symlink) (struct inode *, struct dentry *, struct page *,
1564 unsigned int, struct iattr *);
1565 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1566 int (*rmdir) (struct inode *, const struct qstr *);
1567 int (*readdir) (struct dentry *, struct rpc_cred *,
1568 u64, struct page **, unsigned int, int);
1569 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1571 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1572 struct nfs_fsstat *);
1573 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1574 struct nfs_fsinfo *);
1575 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1576 struct nfs_pathconf *);
1577 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1578 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1579 int (*pgio_rpc_prepare)(struct rpc_task *,
1580 struct nfs_pgio_header *);
1581 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1582 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1583 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1584 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1585 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1586 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1587 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1588 int (*lock)(struct file *, int, struct file_lock *);
1589 int (*lock_check_bounds)(const struct file_lock *);
1590 void (*clear_acl_cache)(struct inode *);
1591 void (*close_context)(struct nfs_open_context *ctx, int);
1592 struct inode * (*open_context) (struct inode *dir,
1593 struct nfs_open_context *ctx,
1595 struct iattr *iattr,
1597 int (*have_delegation)(struct inode *, fmode_t);
1598 int (*return_delegation)(struct inode *);
1599 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1600 struct nfs_client *(*init_client) (struct nfs_client *,
1601 const struct nfs_client_initdata *);
1602 void (*free_client) (struct nfs_client *);
1603 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1604 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1605 struct nfs_fattr *, rpc_authflavor_t);
1609 * NFS_CALL(getattr, inode, (fattr));
1611 * NFS_PROTO(inode)->getattr(fattr);
1613 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1616 * Function vectors etc. for the NFS client
1618 extern const struct nfs_rpc_ops nfs_v2_clientops;
1619 extern const struct nfs_rpc_ops nfs_v3_clientops;
1620 extern const struct nfs_rpc_ops nfs_v4_clientops;
1621 extern const struct rpc_version nfs_version2;
1622 extern const struct rpc_version nfs_version3;
1623 extern const struct rpc_version nfs_version4;
1625 extern const struct rpc_version nfsacl_version3;
1626 extern const struct rpc_program nfsacl_program;