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;
189 struct nfs4_sequence_args {
190 struct nfs4_slot *sa_slot;
191 u8 sa_cache_this : 1,
195 struct nfs4_sequence_res {
196 struct nfs4_slot *sr_slot; /* slot used to send request */
197 unsigned long sr_timestamp;
198 int sr_status; /* sequence operation status */
200 u32 sr_highest_slotid;
201 u32 sr_target_highest_slotid;
204 struct nfs4_get_lease_time_args {
205 struct nfs4_sequence_args la_seq_args;
208 struct nfs4_get_lease_time_res {
209 struct nfs4_sequence_res lr_seq_res;
210 struct nfs_fsinfo *lr_fsinfo;
213 #define PNFS_LAYOUT_MAXSIZE 4096
215 struct nfs4_layoutdriver_data {
221 struct pnfs_layout_range {
227 struct nfs4_layoutget_args {
228 struct nfs4_sequence_args seq_args;
230 struct pnfs_layout_range range;
234 struct nfs_open_context *ctx;
235 nfs4_stateid stateid;
236 unsigned long timestamp;
237 struct nfs4_layoutdriver_data layout;
240 struct nfs4_layoutget_res {
241 struct nfs4_sequence_res seq_res;
242 __u32 return_on_close;
243 struct pnfs_layout_range range;
245 nfs4_stateid stateid;
246 struct nfs4_layoutdriver_data *layoutp;
249 struct nfs4_layoutget {
250 struct nfs4_layoutget_args args;
251 struct nfs4_layoutget_res res;
255 struct nfs4_getdevicelist_args {
256 struct nfs4_sequence_args seq_args;
257 const struct nfs_fh *fh;
261 struct nfs4_getdevicelist_res {
262 struct nfs4_sequence_res seq_res;
263 struct pnfs_devicelist *devlist;
266 struct nfs4_getdeviceinfo_args {
267 struct nfs4_sequence_args seq_args;
268 struct pnfs_device *pdev;
271 struct nfs4_getdeviceinfo_res {
272 struct nfs4_sequence_res seq_res;
273 struct pnfs_device *pdev;
276 struct nfs4_layoutcommit_args {
277 struct nfs4_sequence_args seq_args;
278 nfs4_stateid stateid;
279 __u64 lastbytewritten;
284 struct nfs4_layoutcommit_res {
285 struct nfs4_sequence_res seq_res;
286 struct nfs_fattr *fattr;
287 const struct nfs_server *server;
291 struct nfs4_layoutcommit_data {
292 struct rpc_task task;
293 struct nfs_fattr fattr;
294 struct list_head lseg_list;
295 struct rpc_cred *cred;
296 struct nfs4_layoutcommit_args args;
297 struct nfs4_layoutcommit_res res;
300 struct nfs4_layoutreturn_args {
301 struct nfs4_sequence_args seq_args;
302 struct pnfs_layout_hdr *layout;
304 nfs4_stateid stateid;
308 struct nfs4_layoutreturn_res {
309 struct nfs4_sequence_res seq_res;
311 nfs4_stateid stateid;
314 struct nfs4_layoutreturn {
315 struct nfs4_layoutreturn_args args;
316 struct nfs4_layoutreturn_res res;
317 struct rpc_cred *cred;
318 struct nfs_client *clp;
322 struct stateowner_id {
328 * Arguments to the open call.
330 struct nfs_openargs {
331 struct nfs4_sequence_args seq_args;
332 const struct nfs_fh * fh;
333 struct nfs_seqid * seqid;
338 struct stateowner_id id;
341 struct iattr * attrs; /* UNCHECKED, GUARDED */
342 nfs4_verifier verifier; /* EXCLUSIVE */
344 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
345 fmode_t delegation_type; /* CLAIM_PREVIOUS */
347 const struct qstr * name;
348 const struct nfs_server *server; /* Needed for ID mapping */
350 const u32 * open_bitmap;
355 struct nfs4_sequence_res seq_res;
356 nfs4_stateid stateid;
358 struct nfs4_change_info cinfo;
360 struct nfs_fattr * f_attr;
361 struct nfs_seqid * seqid;
362 const struct nfs_server *server;
363 fmode_t delegation_type;
364 nfs4_stateid delegation;
367 __u32 attrset[NFS4_BITMAP_SIZE];
368 struct nfs4_string *owner;
369 struct nfs4_string *group_owner;
370 __u32 access_request;
371 __u32 access_supported;
376 * Arguments to the open_confirm call.
378 struct nfs_open_confirmargs {
379 const struct nfs_fh * fh;
380 nfs4_stateid * stateid;
381 struct nfs_seqid * seqid;
384 struct nfs_open_confirmres {
385 nfs4_stateid stateid;
386 struct nfs_seqid * seqid;
390 * Arguments to the close call.
392 struct nfs_closeargs {
393 struct nfs4_sequence_args seq_args;
395 nfs4_stateid * stateid;
396 struct nfs_seqid * seqid;
401 struct nfs_closeres {
402 struct nfs4_sequence_res seq_res;
403 nfs4_stateid stateid;
404 struct nfs_fattr * fattr;
405 struct nfs_seqid * seqid;
406 const struct nfs_server *server;
409 * * Arguments to the lock,lockt, and locku call.
417 struct nfs_lock_args {
418 struct nfs4_sequence_args seq_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;
431 struct nfs_lock_res {
432 struct nfs4_sequence_res seq_res;
433 nfs4_stateid stateid;
434 struct nfs_seqid * lock_seqid;
435 struct nfs_seqid * open_seqid;
438 struct nfs_locku_args {
439 struct nfs4_sequence_args seq_args;
441 struct file_lock * fl;
442 struct nfs_seqid * seqid;
443 nfs4_stateid * stateid;
446 struct nfs_locku_res {
447 struct nfs4_sequence_res seq_res;
448 nfs4_stateid stateid;
449 struct nfs_seqid * seqid;
452 struct nfs_lockt_args {
453 struct nfs4_sequence_args seq_args;
455 struct file_lock * fl;
456 struct nfs_lowner lock_owner;
459 struct nfs_lockt_res {
460 struct nfs4_sequence_res seq_res;
461 struct file_lock * denied; /* LOCK, LOCKT failed */
464 struct nfs_release_lockowner_args {
465 struct nfs_lowner lock_owner;
468 struct nfs4_delegreturnargs {
469 struct nfs4_sequence_args seq_args;
470 const struct nfs_fh *fhandle;
471 const nfs4_stateid *stateid;
475 struct nfs4_delegreturnres {
476 struct nfs4_sequence_res seq_res;
477 struct nfs_fattr * fattr;
478 const struct nfs_server *server;
482 * Arguments to the read call.
484 struct nfs_readargs {
485 struct nfs4_sequence_args seq_args;
487 struct nfs_open_context *context;
488 struct nfs_lock_context *lock_context;
492 struct page ** pages;
496 struct nfs4_sequence_res seq_res;
497 struct nfs_fattr * fattr;
503 * Arguments to the write call.
505 struct nfs_writeargs {
506 struct nfs4_sequence_args seq_args;
508 struct nfs_open_context *context;
509 struct nfs_lock_context *lock_context;
512 enum nfs3_stable_how stable;
514 struct page ** pages;
518 struct nfs_write_verifier {
522 struct nfs_writeverf {
523 struct nfs_write_verifier verifier;
524 enum nfs3_stable_how committed;
527 struct nfs_writeres {
528 struct nfs4_sequence_res seq_res;
529 struct nfs_fattr * fattr;
530 struct nfs_writeverf * verf;
532 const struct nfs_server *server;
536 * Arguments to the commit call.
538 struct nfs_commitargs {
539 struct nfs4_sequence_args seq_args;
546 struct nfs_commitres {
547 struct nfs4_sequence_res seq_res;
548 struct nfs_fattr *fattr;
549 struct nfs_writeverf *verf;
550 const struct nfs_server *server;
554 * Common arguments to the unlink call
556 struct nfs_removeargs {
557 struct nfs4_sequence_args seq_args;
558 const struct nfs_fh *fh;
562 struct nfs_removeres {
563 struct nfs4_sequence_res seq_res;
564 const struct nfs_server *server;
565 struct nfs_fattr *dir_attr;
566 struct nfs4_change_info cinfo;
570 * Common arguments to the rename call
572 struct nfs_renameargs {
573 struct nfs4_sequence_args seq_args;
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;
580 struct nfs_renameres {
581 struct nfs4_sequence_res seq_res;
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;
590 * Argument struct for decode_entry function
600 struct nfs_fattr * fattr;
601 unsigned char d_type;
602 struct nfs_server * server;
606 * The following types are for NFSv2 only.
608 struct nfs_sattrargs {
610 struct iattr * sattr;
613 struct nfs_diropargs {
619 struct nfs_createargs {
623 struct iattr * sattr;
626 struct nfs_setattrargs {
627 struct nfs4_sequence_args seq_args;
629 nfs4_stateid stateid;
631 const struct nfs_server * server; /* Needed for name mapping */
635 struct nfs_setaclargs {
636 struct nfs4_sequence_args seq_args;
639 unsigned int acl_pgbase;
640 struct page ** acl_pages;
643 struct nfs_setaclres {
644 struct nfs4_sequence_res seq_res;
647 struct nfs_getaclargs {
648 struct nfs4_sequence_args seq_args;
651 unsigned int acl_pgbase;
652 struct page ** acl_pages;
655 /* getxattr ACL interface flags */
656 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
657 struct nfs_getaclres {
658 struct nfs4_sequence_res seq_res;
660 size_t acl_data_offset;
662 struct page * acl_scratch;
665 struct nfs_setattrres {
666 struct nfs4_sequence_res seq_res;
667 struct nfs_fattr * fattr;
668 const struct nfs_server * server;
671 struct nfs_linkargs {
672 struct nfs_fh * fromfh;
673 struct nfs_fh * tofh;
678 struct nfs_symlinkargs {
679 struct nfs_fh * fromfh;
680 const char * fromname;
681 unsigned int fromlen;
682 struct page ** pages;
683 unsigned int pathlen;
684 struct iattr * sattr;
687 struct nfs_readdirargs {
691 struct page ** pages;
694 struct nfs3_getaclargs {
697 struct page ** pages;
700 struct nfs3_setaclargs {
701 struct inode * inode;
703 struct posix_acl * acl_access;
704 struct posix_acl * acl_default;
707 struct page ** pages;
712 struct nfs_fattr * fattr;
715 struct nfs_readlinkargs {
719 struct page ** pages;
722 struct nfs3_sattrargs {
724 struct iattr * sattr;
726 struct timespec guardtime;
729 struct nfs3_diropargs {
735 struct nfs3_accessargs {
740 struct nfs3_createargs {
744 struct iattr * sattr;
745 enum nfs3_createmode createmode;
749 struct nfs3_mkdirargs {
753 struct iattr * sattr;
756 struct nfs3_symlinkargs {
757 struct nfs_fh * fromfh;
758 const char * fromname;
759 unsigned int fromlen;
760 struct page ** pages;
761 unsigned int pathlen;
762 struct iattr * sattr;
765 struct nfs3_mknodargs {
769 enum nfs3_ftype type;
770 struct iattr * sattr;
774 struct nfs3_linkargs {
775 struct nfs_fh * fromfh;
776 struct nfs_fh * tofh;
781 struct nfs3_readdirargs {
787 struct page ** pages;
790 struct nfs3_diropres {
791 struct nfs_fattr * dir_attr;
793 struct nfs_fattr * fattr;
796 struct nfs3_accessres {
797 struct nfs_fattr * fattr;
801 struct nfs3_readlinkargs {
805 struct page ** pages;
808 struct nfs3_linkres {
809 struct nfs_fattr * dir_attr;
810 struct nfs_fattr * fattr;
813 struct nfs3_readdirres {
814 struct nfs_fattr * dir_attr;
819 struct nfs3_getaclres {
820 struct nfs_fattr * fattr;
822 unsigned int acl_access_count;
823 unsigned int acl_default_count;
824 struct posix_acl * acl_access;
825 struct posix_acl * acl_default;
828 #if IS_ENABLED(CONFIG_NFS_V4)
830 typedef u64 clientid4;
832 struct nfs4_accessargs {
833 struct nfs4_sequence_args seq_args;
834 const struct nfs_fh * fh;
839 struct nfs4_accessres {
840 struct nfs4_sequence_res seq_res;
841 const struct nfs_server * server;
842 struct nfs_fattr * fattr;
847 struct nfs4_create_arg {
848 struct nfs4_sequence_args seq_args;
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;
867 struct nfs4_create_res {
868 struct nfs4_sequence_res seq_res;
869 const struct nfs_server * server;
871 struct nfs_fattr * fattr;
872 struct nfs4_change_info dir_cinfo;
875 struct nfs4_fsinfo_arg {
876 struct nfs4_sequence_args seq_args;
877 const struct nfs_fh * fh;
881 struct nfs4_fsinfo_res {
882 struct nfs4_sequence_res seq_res;
883 struct nfs_fsinfo *fsinfo;
886 struct nfs4_getattr_arg {
887 struct nfs4_sequence_args seq_args;
888 const struct nfs_fh * fh;
892 struct nfs4_getattr_res {
893 struct nfs4_sequence_res seq_res;
894 const struct nfs_server * server;
895 struct nfs_fattr * fattr;
898 struct nfs4_link_arg {
899 struct nfs4_sequence_args seq_args;
900 const struct nfs_fh * fh;
901 const struct nfs_fh * dir_fh;
902 const struct qstr * name;
906 struct nfs4_link_res {
907 struct nfs4_sequence_res seq_res;
908 const struct nfs_server * server;
909 struct nfs_fattr * fattr;
910 struct nfs4_change_info cinfo;
911 struct nfs_fattr * dir_attr;
915 struct nfs4_lookup_arg {
916 struct nfs4_sequence_args seq_args;
917 const struct nfs_fh * dir_fh;
918 const struct qstr * name;
922 struct nfs4_lookup_res {
923 struct nfs4_sequence_res seq_res;
924 const struct nfs_server * server;
925 struct nfs_fattr * fattr;
929 struct nfs4_lookup_root_arg {
930 struct nfs4_sequence_args seq_args;
934 struct nfs4_pathconf_arg {
935 struct nfs4_sequence_args seq_args;
936 const struct nfs_fh * fh;
940 struct nfs4_pathconf_res {
941 struct nfs4_sequence_res seq_res;
942 struct nfs_pathconf *pathconf;
945 struct nfs4_readdir_arg {
946 struct nfs4_sequence_args seq_args;
947 const struct nfs_fh * fh;
949 nfs4_verifier verifier;
951 struct page ** pages; /* zero-copy data */
952 unsigned int pgbase; /* zero-copy data */
957 struct nfs4_readdir_res {
958 struct nfs4_sequence_res seq_res;
959 nfs4_verifier verifier;
963 struct nfs4_readlink {
964 struct nfs4_sequence_args seq_args;
965 const struct nfs_fh * fh;
967 unsigned int pglen; /* zero-copy data */
968 struct page ** pages; /* zero-copy data */
971 struct nfs4_readlink_res {
972 struct nfs4_sequence_res seq_res;
975 #define NFS4_SETCLIENTID_NAMELEN (127)
976 struct nfs4_setclientid {
977 const nfs4_verifier * sc_verifier;
978 unsigned int sc_name_len;
979 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
981 unsigned int sc_netid_len;
982 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
983 unsigned int sc_uaddr_len;
984 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
988 struct nfs4_setclientid_res {
990 nfs4_verifier confirm;
993 struct nfs4_statfs_arg {
994 struct nfs4_sequence_args seq_args;
995 const struct nfs_fh * fh;
999 struct nfs4_statfs_res {
1000 struct nfs4_sequence_res seq_res;
1001 struct nfs_fsstat *fsstat;
1004 struct nfs4_server_caps_arg {
1005 struct nfs4_sequence_args seq_args;
1006 struct nfs_fh *fhandle;
1009 struct nfs4_server_caps_res {
1010 struct nfs4_sequence_res seq_res;
1011 u32 attr_bitmask[3];
1018 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1019 struct nfs4_pathname {
1020 unsigned int ncomponents;
1021 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1024 #define NFS4_FS_LOCATION_MAXSERVERS 10
1025 struct nfs4_fs_location {
1026 unsigned int nservers;
1027 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1028 struct nfs4_pathname rootpath;
1031 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1032 struct nfs4_fs_locations {
1033 struct nfs_fattr fattr;
1034 const struct nfs_server *server;
1035 struct nfs4_pathname fs_path;
1037 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1040 struct nfs4_fs_locations_arg {
1041 struct nfs4_sequence_args seq_args;
1042 const struct nfs_fh *dir_fh;
1043 const struct qstr *name;
1048 struct nfs4_fs_locations_res {
1049 struct nfs4_sequence_res seq_res;
1050 struct nfs4_fs_locations *fs_locations;
1053 struct nfs4_secinfo_oid {
1055 char data[GSS_OID_MAX_LEN];
1058 struct nfs4_secinfo_gss {
1059 struct nfs4_secinfo_oid sec_oid4;
1061 unsigned int service;
1064 struct nfs4_secinfo_flavor {
1065 unsigned int flavor;
1066 struct nfs4_secinfo_gss gss;
1069 struct nfs4_secinfo_flavors {
1070 unsigned int num_flavors;
1071 struct nfs4_secinfo_flavor flavors[0];
1074 struct nfs4_secinfo_arg {
1075 struct nfs4_sequence_args seq_args;
1076 const struct nfs_fh *dir_fh;
1077 const struct qstr *name;
1080 struct nfs4_secinfo_res {
1081 struct nfs4_sequence_res seq_res;
1082 struct nfs4_secinfo_flavors *flavors;
1085 #endif /* CONFIG_NFS_V4 */
1092 #ifdef CONFIG_NFS_V4_1
1094 struct pnfs_commit_bucket {
1095 struct list_head written;
1096 struct list_head committing;
1097 struct pnfs_layout_segment *wlseg;
1098 struct pnfs_layout_segment *clseg;
1101 struct pnfs_ds_commit_info {
1105 struct pnfs_commit_bucket *buckets;
1108 #define NFS4_EXCHANGE_ID_LEN (48)
1109 struct nfs41_exchange_id_args {
1110 struct nfs_client *client;
1111 nfs4_verifier *verifier;
1112 unsigned int id_len;
1113 char id[NFS4_EXCHANGE_ID_LEN];
1117 struct nfs41_server_owner {
1119 uint32_t major_id_sz;
1120 char major_id[NFS4_OPAQUE_LIMIT];
1123 struct nfs41_server_scope {
1124 uint32_t server_scope_sz;
1125 char server_scope[NFS4_OPAQUE_LIMIT];
1128 struct nfs41_impl_id {
1129 char domain[NFS4_OPAQUE_LIMIT + 1];
1130 char name[NFS4_OPAQUE_LIMIT + 1];
1131 struct nfstime4 date;
1134 struct nfs41_bind_conn_to_session_res {
1135 struct nfs4_session *session;
1137 bool use_conn_in_rdma_mode;
1140 struct nfs41_exchange_id_res {
1144 struct nfs41_server_owner *server_owner;
1145 struct nfs41_server_scope *server_scope;
1146 struct nfs41_impl_id *impl_id;
1149 struct nfs41_create_session_args {
1150 struct nfs_client *client;
1152 uint32_t cb_program;
1153 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1154 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1157 struct nfs41_create_session_res {
1158 struct nfs_client *client;
1161 struct nfs41_reclaim_complete_args {
1162 struct nfs4_sequence_args seq_args;
1163 /* In the future extend to include curr_fh for use with migration */
1164 unsigned char one_fs:1;
1167 struct nfs41_reclaim_complete_res {
1168 struct nfs4_sequence_res seq_res;
1171 #define SECINFO_STYLE_CURRENT_FH 0
1172 #define SECINFO_STYLE_PARENT 1
1173 struct nfs41_secinfo_no_name_args {
1174 struct nfs4_sequence_args seq_args;
1178 struct nfs41_test_stateid_args {
1179 struct nfs4_sequence_args seq_args;
1180 nfs4_stateid *stateid;
1183 struct nfs41_test_stateid_res {
1184 struct nfs4_sequence_res seq_res;
1185 unsigned int status;
1188 struct nfs41_free_stateid_args {
1189 struct nfs4_sequence_args seq_args;
1190 nfs4_stateid *stateid;
1193 struct nfs41_free_stateid_res {
1194 struct nfs4_sequence_res seq_res;
1195 unsigned int status;
1200 struct pnfs_ds_commit_info {
1203 #endif /* CONFIG_NFS_V4_1 */
1207 #define NFS_PAGEVEC_SIZE (8U)
1209 struct nfs_page_array {
1210 struct page **pagevec;
1211 unsigned int npages; /* Max length of pagevec */
1212 struct page *page_array[NFS_PAGEVEC_SIZE];
1215 struct nfs_read_data {
1216 struct nfs_pgio_header *header;
1217 struct list_head list;
1218 struct rpc_task task;
1219 struct nfs_fattr fattr; /* fattr storage */
1220 struct nfs_readargs args;
1221 struct nfs_readres res;
1222 unsigned long timestamp; /* For lease renewal */
1223 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1225 struct nfs_page_array pages;
1226 struct nfs_client *ds_clp; /* pNFS data server */
1229 /* used as flag bits in nfs_pgio_header */
1231 NFS_IOHDR_ERROR = 0,
1234 NFS_IOHDR_NEED_COMMIT,
1235 NFS_IOHDR_NEED_RESCHED,
1238 struct nfs_pgio_header {
1239 struct inode *inode;
1240 struct rpc_cred *cred;
1241 struct list_head pages;
1242 struct list_head rpc_list;
1244 struct nfs_page *req;
1245 struct nfs_writeverf *verf;
1246 struct pnfs_layout_segment *lseg;
1248 const struct rpc_call_ops *mds_ops;
1249 void (*release) (struct nfs_pgio_header *hdr);
1250 const struct nfs_pgio_completion_ops *completion_ops;
1251 struct nfs_direct_req *dreq;
1252 void *layout_private;
1254 /* fields protected by lock */
1256 int error; /* merge with pnfs_error */
1257 unsigned long good_bytes; /* boundary of good data */
1258 unsigned long flags;
1261 struct nfs_read_header {
1262 struct nfs_pgio_header header;
1263 struct nfs_read_data rpc_data;
1266 struct nfs_write_data {
1267 struct nfs_pgio_header *header;
1268 struct list_head list;
1269 struct rpc_task task;
1270 struct nfs_fattr fattr;
1271 struct nfs_writeverf verf;
1272 struct nfs_writeargs args; /* argument struct */
1273 struct nfs_writeres res; /* result struct */
1274 unsigned long timestamp; /* For lease renewal */
1275 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1276 __u64 mds_offset; /* Filelayout dense stripe */
1277 struct nfs_page_array pages;
1278 struct nfs_client *ds_clp; /* pNFS data server */
1281 struct nfs_write_header {
1282 struct nfs_pgio_header header;
1283 struct nfs_write_data rpc_data;
1284 struct nfs_writeverf verf;
1287 struct nfs_mds_commit_info {
1289 unsigned long ncommit;
1290 struct list_head list;
1293 struct nfs_commit_data;
1295 struct nfs_commit_completion_ops {
1296 void (*error_cleanup) (struct nfs_inode *nfsi);
1297 void (*completion) (struct nfs_commit_data *data);
1300 struct nfs_commit_info {
1302 struct nfs_mds_commit_info *mds;
1303 struct pnfs_ds_commit_info *ds;
1304 struct nfs_direct_req *dreq; /* O_DIRECT request */
1305 const struct nfs_commit_completion_ops *completion_ops;
1308 struct nfs_commit_data {
1309 struct rpc_task task;
1310 struct inode *inode;
1311 struct rpc_cred *cred;
1312 struct nfs_fattr fattr;
1313 struct nfs_writeverf verf;
1314 struct list_head pages; /* Coalesced requests we wish to flush */
1315 struct list_head list; /* lists of struct nfs_write_data */
1316 struct nfs_direct_req *dreq; /* O_DIRECT request */
1317 struct nfs_commitargs args; /* argument struct */
1318 struct nfs_commitres res; /* result struct */
1319 struct nfs_open_context *context;
1320 struct pnfs_layout_segment *lseg;
1321 struct nfs_client *ds_clp; /* pNFS data server */
1322 int ds_commit_index;
1323 const struct rpc_call_ops *mds_ops;
1324 const struct nfs_commit_completion_ops *completion_ops;
1325 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1328 struct nfs_pgio_completion_ops {
1329 void (*error_cleanup)(struct list_head *head);
1330 void (*init_hdr)(struct nfs_pgio_header *hdr);
1331 void (*completion)(struct nfs_pgio_header *hdr);
1334 struct nfs_unlinkdata {
1335 struct hlist_node list;
1336 struct nfs_removeargs args;
1337 struct nfs_removeres res;
1339 struct rpc_cred *cred;
1340 struct nfs_fattr dir_attr;
1343 struct nfs_renamedata {
1344 struct nfs_renameargs args;
1345 struct nfs_renameres res;
1346 struct rpc_cred *cred;
1347 struct inode *old_dir;
1348 struct dentry *old_dentry;
1349 struct nfs_fattr old_fattr;
1350 struct inode *new_dir;
1351 struct dentry *new_dentry;
1352 struct nfs_fattr new_fattr;
1355 struct nfs_access_entry;
1358 struct nfs_subversion;
1359 struct nfs_mount_info;
1360 struct nfs_client_initdata;
1361 struct nfs_pageio_descriptor;
1364 * RPC procedure vector for NFSv2/NFSv3 demuxing
1366 struct nfs_rpc_ops {
1367 u32 version; /* Protocol version */
1368 const struct dentry_operations *dentry_ops;
1369 const struct inode_operations *dir_inode_ops;
1370 const struct inode_operations *file_inode_ops;
1371 const struct file_operations *file_ops;
1373 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1374 struct nfs_fsinfo *);
1375 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1376 struct nfs_fh *, struct nfs_fattr *);
1377 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1378 struct nfs_subversion *);
1379 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1380 struct nfs_fattr *);
1381 int (*setattr) (struct dentry *, struct nfs_fattr *,
1383 int (*lookup) (struct inode *, struct qstr *,
1384 struct nfs_fh *, struct nfs_fattr *);
1385 int (*access) (struct inode *, struct nfs_access_entry *);
1386 int (*readlink)(struct inode *, struct page *, unsigned int,
1388 int (*create) (struct inode *, struct dentry *,
1389 struct iattr *, int);
1390 int (*remove) (struct inode *, struct qstr *);
1391 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1392 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1393 int (*unlink_done) (struct rpc_task *, struct inode *);
1394 int (*rename) (struct inode *, struct qstr *,
1395 struct inode *, struct qstr *);
1396 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1397 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1398 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1399 int (*link) (struct inode *, struct inode *, struct qstr *);
1400 int (*symlink) (struct inode *, struct dentry *, struct page *,
1401 unsigned int, struct iattr *);
1402 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1403 int (*rmdir) (struct inode *, struct qstr *);
1404 int (*readdir) (struct dentry *, struct rpc_cred *,
1405 u64, struct page **, unsigned int, int);
1406 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1408 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1409 struct nfs_fsstat *);
1410 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1411 struct nfs_fsinfo *);
1412 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1413 struct nfs_pathconf *);
1414 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1415 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1416 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1417 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1418 const struct nfs_pgio_completion_ops *);
1419 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1420 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1421 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1422 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1423 const struct nfs_pgio_completion_ops *);
1424 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1425 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1426 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1427 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1428 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1429 int (*lock)(struct file *, int, struct file_lock *);
1430 int (*lock_check_bounds)(const struct file_lock *);
1431 void (*clear_acl_cache)(struct inode *);
1432 void (*close_context)(struct nfs_open_context *ctx, int);
1433 struct inode * (*open_context) (struct inode *dir,
1434 struct nfs_open_context *ctx,
1436 struct iattr *iattr);
1437 int (*have_delegation)(struct inode *, fmode_t);
1438 int (*return_delegation)(struct inode *);
1439 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1441 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1442 const char *, rpc_authflavor_t);
1443 void (*free_client) (struct nfs_client *);
1444 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1445 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1446 struct nfs_fattr *, rpc_authflavor_t);
1450 * NFS_CALL(getattr, inode, (fattr));
1452 * NFS_PROTO(inode)->getattr(fattr);
1454 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1457 * Function vectors etc. for the NFS client
1459 extern const struct nfs_rpc_ops nfs_v2_clientops;
1460 extern const struct nfs_rpc_ops nfs_v3_clientops;
1461 extern const struct nfs_rpc_ops nfs_v4_clientops;
1462 extern const struct rpc_version nfs_version2;
1463 extern const struct rpc_version nfs_version3;
1464 extern const struct rpc_version nfs_version4;
1466 extern const struct rpc_version nfsacl_version3;
1467 extern const struct rpc_program nfsacl_program;