1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_NFS_XDR_H 3#define _LINUX_NFS_XDR_H 4 5#include <linux/nfsacl.h> 6#include <linux/sunrpc/gss_api.h> 7 8/* 9 * To change the maximum rsize and wsize supported by the NFS client, adjust 10 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can 11 * support a megabyte or more. The default is left at 4096 bytes, which is 12 * reasonable for NFS over UDP. 13 */ 14#define NFS_MAX_FILE_IO_SIZE (1048576U) 15#define NFS_DEF_FILE_IO_SIZE (4096U) 16#define NFS_MIN_FILE_IO_SIZE (1024U) 17 18#define NFS_BITMASK_SZ 3 19 20struct nfs4_string { 21 unsigned int len; 22 char *data; 23}; 24 25struct nfs_fsid { 26 uint64_t major; 27 uint64_t minor; 28}; 29 30/* 31 * Helper for checking equality between 2 fsids. 32 */ 33static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 34{ 35 return a->major == b->major && a->minor == b->minor; 36} 37 38struct nfs4_threshold { 39 __u32 bm; 40 __u32 l_type; 41 __u64 rd_sz; 42 __u64 wr_sz; 43 __u64 rd_io_sz; 44 __u64 wr_io_sz; 45}; 46 47struct nfs_fattr { 48 unsigned int valid; /* which fields are valid */ 49 umode_t mode; 50 __u32 nlink; 51 kuid_t uid; 52 kgid_t gid; 53 dev_t rdev; 54 __u64 size; 55 union { 56 struct { 57 __u32 blocksize; 58 __u32 blocks; 59 } nfs2; 60 struct { 61 __u64 used; 62 } nfs3; 63 } du; 64 struct nfs_fsid fsid; 65 __u64 fileid; 66 __u64 mounted_on_fileid; 67 struct timespec64 atime; 68 struct timespec64 mtime; 69 struct timespec64 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 timespec64 pre_mtime; /* pre_op_attr.mtime */ 74 struct timespec64 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 */ 80 struct nfs4_label *label; 81}; 82 83#define NFS_ATTR_FATTR_TYPE (1U << 0) 84#define NFS_ATTR_FATTR_MODE (1U << 1) 85#define NFS_ATTR_FATTR_NLINK (1U << 2) 86#define NFS_ATTR_FATTR_OWNER (1U << 3) 87#define NFS_ATTR_FATTR_GROUP (1U << 4) 88#define NFS_ATTR_FATTR_RDEV (1U << 5) 89#define NFS_ATTR_FATTR_SIZE (1U << 6) 90#define NFS_ATTR_FATTR_PRESIZE (1U << 7) 91#define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 92#define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 93#define NFS_ATTR_FATTR_FSID (1U << 10) 94#define NFS_ATTR_FATTR_FILEID (1U << 11) 95#define NFS_ATTR_FATTR_ATIME (1U << 12) 96#define NFS_ATTR_FATTR_MTIME (1U << 13) 97#define NFS_ATTR_FATTR_CTIME (1U << 14) 98#define NFS_ATTR_FATTR_PREMTIME (1U << 15) 99#define NFS_ATTR_FATTR_PRECTIME (1U << 16) 100#define NFS_ATTR_FATTR_CHANGE (1U << 17) 101#define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 102#define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) 103#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) 104#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) 105#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) 106#define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) 107#define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) 108#define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) 109 110#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 111 | NFS_ATTR_FATTR_MODE \ 112 | NFS_ATTR_FATTR_NLINK \ 113 | NFS_ATTR_FATTR_OWNER \ 114 | NFS_ATTR_FATTR_GROUP \ 115 | NFS_ATTR_FATTR_RDEV \ 116 | NFS_ATTR_FATTR_SIZE \ 117 | NFS_ATTR_FATTR_FSID \ 118 | NFS_ATTR_FATTR_FILEID \ 119 | NFS_ATTR_FATTR_ATIME \ 120 | NFS_ATTR_FATTR_MTIME \ 121 | NFS_ATTR_FATTR_CTIME \ 122 | NFS_ATTR_FATTR_CHANGE) 123#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 124 | NFS_ATTR_FATTR_BLOCKS_USED) 125#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 126 | NFS_ATTR_FATTR_SPACE_USED) 127#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 128 | NFS_ATTR_FATTR_SPACE_USED \ 129 | NFS_ATTR_FATTR_V4_SECURITY_LABEL) 130 131/* 132 * Maximal number of supported layout drivers. 133 */ 134#define NFS_MAX_LAYOUT_TYPES 8 135 136/* 137 * Info on the file system 138 */ 139struct nfs_fsinfo { 140 struct nfs_fattr *fattr; /* Post-op attributes */ 141 __u32 rtmax; /* max. read transfer size */ 142 __u32 rtpref; /* pref. read transfer size */ 143 __u32 rtmult; /* reads should be multiple of this */ 144 __u32 wtmax; /* max. write transfer size */ 145 __u32 wtpref; /* pref. write transfer size */ 146 __u32 wtmult; /* writes should be multiple of this */ 147 __u32 dtpref; /* pref. readdir transfer size */ 148 __u64 maxfilesize; 149 struct timespec64 time_delta; /* server time granularity */ 150 __u32 lease_time; /* in seconds */ 151 __u32 nlayouttypes; /* number of layouttypes */ 152 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 153 __u32 blksize; /* preferred pnfs io block size */ 154 __u32 clone_blksize; /* granularity of a CLONE operation */ 155 enum nfs4_change_attr_type 156 change_attr_type; /* Info about change attr */ 157 __u32 xattr_support; /* User xattrs supported */ 158}; 159 160struct nfs_fsstat { 161 struct nfs_fattr *fattr; /* Post-op attributes */ 162 __u64 tbytes; /* total size in bytes */ 163 __u64 fbytes; /* # of free bytes */ 164 __u64 abytes; /* # of bytes available to user */ 165 __u64 tfiles; /* # of files */ 166 __u64 ffiles; /* # of free files */ 167 __u64 afiles; /* # of files available to user */ 168}; 169 170struct nfs2_fsstat { 171 __u32 tsize; /* Server transfer size */ 172 __u32 bsize; /* Filesystem block size */ 173 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 174 __u32 bfree; /* No. of free "bsize" blocks */ 175 __u32 bavail; /* No. of available "bsize" blocks */ 176}; 177 178struct nfs_pathconf { 179 struct nfs_fattr *fattr; /* Post-op attributes */ 180 __u32 max_link; /* max # of hard links */ 181 __u32 max_namelen; /* max name length */ 182}; 183 184struct nfs4_change_info { 185 u32 atomic; 186 u64 before; 187 u64 after; 188}; 189 190struct nfs_seqid; 191 192/* nfs41 sessions channel attributes */ 193struct nfs4_channel_attrs { 194 u32 max_rqst_sz; 195 u32 max_resp_sz; 196 u32 max_resp_sz_cached; 197 u32 max_ops; 198 u32 max_reqs; 199}; 200 201struct nfs4_slot; 202struct nfs4_sequence_args { 203 struct nfs4_slot *sa_slot; 204 u8 sa_cache_this : 1, 205 sa_privileged : 1; 206}; 207 208struct nfs4_sequence_res { 209 struct nfs4_slot *sr_slot; /* slot used to send request */ 210 unsigned long sr_timestamp; 211 int sr_status; /* sequence operation status */ 212 u32 sr_status_flags; 213 u32 sr_highest_slotid; 214 u32 sr_target_highest_slotid; 215}; 216 217struct nfs4_get_lease_time_args { 218 struct nfs4_sequence_args la_seq_args; 219}; 220 221struct nfs4_get_lease_time_res { 222 struct nfs4_sequence_res lr_seq_res; 223 struct nfs_fsinfo *lr_fsinfo; 224}; 225 226struct xdr_stream; 227struct nfs4_xdr_opaque_data; 228 229struct nfs4_xdr_opaque_ops { 230 void (*encode)(struct xdr_stream *, const void *args, 231 const struct nfs4_xdr_opaque_data *); 232 void (*free)(struct nfs4_xdr_opaque_data *); 233}; 234 235struct nfs4_xdr_opaque_data { 236 const struct nfs4_xdr_opaque_ops *ops; 237 void *data; 238}; 239 240#define PNFS_LAYOUT_MAXSIZE 4096 241 242struct nfs4_layoutdriver_data { 243 struct page **pages; 244 __u32 pglen; 245 __u32 len; 246}; 247 248struct pnfs_layout_range { 249 u32 iomode; 250 u64 offset; 251 u64 length; 252}; 253 254struct nfs4_layoutget_args { 255 struct nfs4_sequence_args seq_args; 256 __u32 type; 257 struct pnfs_layout_range range; 258 __u64 minlength; 259 __u32 maxcount; 260 struct inode *inode; 261 struct nfs_open_context *ctx; 262 nfs4_stateid stateid; 263 struct nfs4_layoutdriver_data layout; 264}; 265 266struct nfs4_layoutget_res { 267 struct nfs4_sequence_res seq_res; 268 int status; 269 __u32 return_on_close; 270 struct pnfs_layout_range range; 271 __u32 type; 272 nfs4_stateid stateid; 273 struct nfs4_layoutdriver_data *layoutp; 274}; 275 276struct nfs4_layoutget { 277 struct nfs4_layoutget_args args; 278 struct nfs4_layoutget_res res; 279 const struct cred *cred; 280 struct pnfs_layout_hdr *lo; 281 gfp_t gfp_flags; 282}; 283 284struct nfs4_getdeviceinfo_args { 285 struct nfs4_sequence_args seq_args; 286 struct pnfs_device *pdev; 287 __u32 notify_types; 288}; 289 290struct nfs4_getdeviceinfo_res { 291 struct nfs4_sequence_res seq_res; 292 struct pnfs_device *pdev; 293 __u32 notification; 294}; 295 296struct nfs4_layoutcommit_args { 297 struct nfs4_sequence_args seq_args; 298 nfs4_stateid stateid; 299 __u64 lastbytewritten; 300 struct inode *inode; 301 const u32 *bitmask; 302 size_t layoutupdate_len; 303 struct page *layoutupdate_page; 304 struct page **layoutupdate_pages; 305 __be32 *start_p; 306}; 307 308struct nfs4_layoutcommit_res { 309 struct nfs4_sequence_res seq_res; 310 struct nfs_fattr *fattr; 311 const struct nfs_server *server; 312 int status; 313}; 314 315struct nfs4_layoutcommit_data { 316 struct rpc_task task; 317 struct nfs_fattr fattr; 318 struct list_head lseg_list; 319 const struct cred *cred; 320 struct inode *inode; 321 struct nfs4_layoutcommit_args args; 322 struct nfs4_layoutcommit_res res; 323}; 324 325struct nfs4_layoutreturn_args { 326 struct nfs4_sequence_args seq_args; 327 struct pnfs_layout_hdr *layout; 328 struct inode *inode; 329 struct pnfs_layout_range range; 330 nfs4_stateid stateid; 331 __u32 layout_type; 332 struct nfs4_xdr_opaque_data *ld_private; 333}; 334 335struct nfs4_layoutreturn_res { 336 struct nfs4_sequence_res seq_res; 337 u32 lrs_present; 338 nfs4_stateid stateid; 339}; 340 341struct nfs4_layoutreturn { 342 struct nfs4_layoutreturn_args args; 343 struct nfs4_layoutreturn_res res; 344 const struct cred *cred; 345 struct nfs_client *clp; 346 struct inode *inode; 347 int rpc_status; 348 struct nfs4_xdr_opaque_data ld_private; 349}; 350 351#define PNFS_LAYOUTSTATS_MAXSIZE 256 352 353struct nfs42_layoutstat_args; 354struct nfs42_layoutstat_devinfo; 355typedef void (*layoutstats_encode_t)(struct xdr_stream *, 356 struct nfs42_layoutstat_args *, 357 struct nfs42_layoutstat_devinfo *); 358 359/* Per file per deviceid layoutstats */ 360struct nfs42_layoutstat_devinfo { 361 struct nfs4_deviceid dev_id; 362 __u64 offset; 363 __u64 length; 364 __u64 read_count; 365 __u64 read_bytes; 366 __u64 write_count; 367 __u64 write_bytes; 368 __u32 layout_type; 369 struct nfs4_xdr_opaque_data ld_private; 370}; 371 372struct nfs42_layoutstat_args { 373 struct nfs4_sequence_args seq_args; 374 struct nfs_fh *fh; 375 struct inode *inode; 376 nfs4_stateid stateid; 377 int num_dev; 378 struct nfs42_layoutstat_devinfo *devinfo; 379}; 380 381struct nfs42_layoutstat_res { 382 struct nfs4_sequence_res seq_res; 383 int num_dev; 384 int rpc_status; 385}; 386 387struct nfs42_layoutstat_data { 388 struct inode *inode; 389 struct nfs42_layoutstat_args args; 390 struct nfs42_layoutstat_res res; 391}; 392 393struct nfs42_device_error { 394 struct nfs4_deviceid dev_id; 395 int status; 396 enum nfs_opnum4 opnum; 397}; 398 399struct nfs42_layout_error { 400 __u64 offset; 401 __u64 length; 402 nfs4_stateid stateid; 403 struct nfs42_device_error errors[1]; 404}; 405 406#define NFS42_LAYOUTERROR_MAX 5 407 408struct nfs42_layouterror_args { 409 struct nfs4_sequence_args seq_args; 410 struct inode *inode; 411 unsigned int num_errors; 412 struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX]; 413}; 414 415struct nfs42_layouterror_res { 416 struct nfs4_sequence_res seq_res; 417 unsigned int num_errors; 418 int rpc_status; 419}; 420 421struct nfs42_layouterror_data { 422 struct nfs42_layouterror_args args; 423 struct nfs42_layouterror_res res; 424 struct inode *inode; 425 struct pnfs_layout_segment *lseg; 426}; 427 428struct nfs42_clone_args { 429 struct nfs4_sequence_args seq_args; 430 struct nfs_fh *src_fh; 431 struct nfs_fh *dst_fh; 432 nfs4_stateid src_stateid; 433 nfs4_stateid dst_stateid; 434 __u64 src_offset; 435 __u64 dst_offset; 436 __u64 count; 437 const u32 *dst_bitmask; 438}; 439 440struct nfs42_clone_res { 441 struct nfs4_sequence_res seq_res; 442 unsigned int rpc_status; 443 struct nfs_fattr *dst_fattr; 444 const struct nfs_server *server; 445}; 446 447struct stateowner_id { 448 __u64 create_time; 449 __u32 uniquifier; 450}; 451 452/* 453 * Arguments to the open call. 454 */ 455struct nfs_openargs { 456 struct nfs4_sequence_args seq_args; 457 const struct nfs_fh * fh; 458 struct nfs_seqid * seqid; 459 int open_flags; 460 fmode_t fmode; 461 u32 share_access; 462 u32 access; 463 __u64 clientid; 464 struct stateowner_id id; 465 union { 466 struct { 467 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 468 nfs4_verifier verifier; /* EXCLUSIVE */ 469 }; 470 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 471 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 472 } u; 473 const struct qstr * name; 474 const struct nfs_server *server; /* Needed for ID mapping */ 475 const u32 * bitmask; 476 const u32 * open_bitmap; 477 enum open_claim_type4 claim; 478 enum createmode4 createmode; 479 const struct nfs4_label *label; 480 umode_t umask; 481 struct nfs4_layoutget_args *lg_args; 482}; 483 484struct nfs_openres { 485 struct nfs4_sequence_res seq_res; 486 nfs4_stateid stateid; 487 struct nfs_fh fh; 488 struct nfs4_change_info cinfo; 489 __u32 rflags; 490 struct nfs_fattr * f_attr; 491 struct nfs_seqid * seqid; 492 const struct nfs_server *server; 493 fmode_t delegation_type; 494 nfs4_stateid delegation; 495 unsigned long pagemod_limit; 496 __u32 do_recall; 497 __u32 attrset[NFS4_BITMAP_SIZE]; 498 struct nfs4_string *owner; 499 struct nfs4_string *group_owner; 500 __u32 access_request; 501 __u32 access_supported; 502 __u32 access_result; 503 struct nfs4_layoutget_res *lg_res; 504}; 505 506/* 507 * Arguments to the open_confirm call. 508 */ 509struct nfs_open_confirmargs { 510 struct nfs4_sequence_args seq_args; 511 const struct nfs_fh * fh; 512 nfs4_stateid * stateid; 513 struct nfs_seqid * seqid; 514}; 515 516struct nfs_open_confirmres { 517 struct nfs4_sequence_res seq_res; 518 nfs4_stateid stateid; 519 struct nfs_seqid * seqid; 520}; 521 522/* 523 * Arguments to the close call. 524 */ 525struct nfs_closeargs { 526 struct nfs4_sequence_args seq_args; 527 struct nfs_fh * fh; 528 nfs4_stateid stateid; 529 struct nfs_seqid * seqid; 530 fmode_t fmode; 531 u32 share_access; 532 const u32 * bitmask; 533 u32 bitmask_store[NFS_BITMASK_SZ]; 534 struct nfs4_layoutreturn_args *lr_args; 535}; 536 537struct nfs_closeres { 538 struct nfs4_sequence_res seq_res; 539 nfs4_stateid stateid; 540 struct nfs_fattr * fattr; 541 struct nfs_seqid * seqid; 542 const struct nfs_server *server; 543 struct nfs4_layoutreturn_res *lr_res; 544 int lr_ret; 545}; 546/* 547 * * Arguments to the lock,lockt, and locku call. 548 * */ 549struct nfs_lowner { 550 __u64 clientid; 551 __u64 id; 552 dev_t s_dev; 553}; 554 555struct nfs_lock_args { 556 struct nfs4_sequence_args seq_args; 557 struct nfs_fh * fh; 558 struct file_lock * fl; 559 struct nfs_seqid * lock_seqid; 560 nfs4_stateid lock_stateid; 561 struct nfs_seqid * open_seqid; 562 nfs4_stateid open_stateid; 563 struct nfs_lowner lock_owner; 564 unsigned char block : 1; 565 unsigned char reclaim : 1; 566 unsigned char new_lock : 1; 567 unsigned char new_lock_owner : 1; 568}; 569 570struct nfs_lock_res { 571 struct nfs4_sequence_res seq_res; 572 nfs4_stateid stateid; 573 struct nfs_seqid * lock_seqid; 574 struct nfs_seqid * open_seqid; 575}; 576 577struct nfs_locku_args { 578 struct nfs4_sequence_args seq_args; 579 struct nfs_fh * fh; 580 struct file_lock * fl; 581 struct nfs_seqid * seqid; 582 nfs4_stateid stateid; 583}; 584 585struct nfs_locku_res { 586 struct nfs4_sequence_res seq_res; 587 nfs4_stateid stateid; 588 struct nfs_seqid * seqid; 589}; 590 591struct nfs_lockt_args { 592 struct nfs4_sequence_args seq_args; 593 struct nfs_fh * fh; 594 struct file_lock * fl; 595 struct nfs_lowner lock_owner; 596}; 597 598struct nfs_lockt_res { 599 struct nfs4_sequence_res seq_res; 600 struct file_lock * denied; /* LOCK, LOCKT failed */ 601}; 602 603struct nfs_release_lockowner_args { 604 struct nfs4_sequence_args seq_args; 605 struct nfs_lowner lock_owner; 606}; 607 608struct nfs_release_lockowner_res { 609 struct nfs4_sequence_res seq_res; 610}; 611 612struct nfs4_delegreturnargs { 613 struct nfs4_sequence_args seq_args; 614 const struct nfs_fh *fhandle; 615 const nfs4_stateid *stateid; 616 const u32 *bitmask; 617 u32 bitmask_store[NFS_BITMASK_SZ]; 618 struct nfs4_layoutreturn_args *lr_args; 619}; 620 621struct nfs4_delegreturnres { 622 struct nfs4_sequence_res seq_res; 623 struct nfs_fattr * fattr; 624 struct nfs_server *server; 625 struct nfs4_layoutreturn_res *lr_res; 626 int lr_ret; 627}; 628 629/* 630 * Arguments to the write call. 631 */ 632struct nfs_write_verifier { 633 char data[8]; 634}; 635 636struct nfs_writeverf { 637 struct nfs_write_verifier verifier; 638 enum nfs3_stable_how committed; 639}; 640 641/* 642 * Arguments shared by the read and write call. 643 */ 644struct nfs_pgio_args { 645 struct nfs4_sequence_args seq_args; 646 struct nfs_fh * fh; 647 struct nfs_open_context *context; 648 struct nfs_lock_context *lock_context; 649 nfs4_stateid stateid; 650 __u64 offset; 651 __u32 count; 652 unsigned int pgbase; 653 struct page ** pages; 654 union { 655 unsigned int replen; /* used by read */ 656 struct { 657 const u32 * bitmask; /* used by write */ 658 u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */ 659 enum nfs3_stable_how stable; /* used by write */ 660 }; 661 }; 662}; 663 664struct nfs_pgio_res { 665 struct nfs4_sequence_res seq_res; 666 struct nfs_fattr * fattr; 667 __u64 count; 668 __u32 op_status; 669 union { 670 struct { 671 unsigned int replen; /* used by read */ 672 int eof; /* used by read */ 673 void * scratch; /* used by read */ 674 }; 675 struct { 676 struct nfs_writeverf * verf; /* used by write */ 677 const struct nfs_server *server; /* used by write */ 678 }; 679 }; 680}; 681 682/* 683 * Arguments to the commit call. 684 */ 685struct nfs_commitargs { 686 struct nfs4_sequence_args seq_args; 687 struct nfs_fh *fh; 688 __u64 offset; 689 __u32 count; 690 const u32 *bitmask; 691}; 692 693struct nfs_commitres { 694 struct nfs4_sequence_res seq_res; 695 __u32 op_status; 696 struct nfs_fattr *fattr; 697 struct nfs_writeverf *verf; 698 const struct nfs_server *server; 699}; 700 701/* 702 * Common arguments to the unlink call 703 */ 704struct nfs_removeargs { 705 struct nfs4_sequence_args seq_args; 706 const struct nfs_fh *fh; 707 struct qstr name; 708}; 709 710struct nfs_removeres { 711 struct nfs4_sequence_res seq_res; 712 struct nfs_server *server; 713 struct nfs_fattr *dir_attr; 714 struct nfs4_change_info cinfo; 715}; 716 717/* 718 * Common arguments to the rename call 719 */ 720struct nfs_renameargs { 721 struct nfs4_sequence_args seq_args; 722 const struct nfs_fh *old_dir; 723 const struct nfs_fh *new_dir; 724 const struct qstr *old_name; 725 const struct qstr *new_name; 726}; 727 728struct nfs_renameres { 729 struct nfs4_sequence_res seq_res; 730 struct nfs_server *server; 731 struct nfs4_change_info old_cinfo; 732 struct nfs_fattr *old_fattr; 733 struct nfs4_change_info new_cinfo; 734 struct nfs_fattr *new_fattr; 735}; 736 737/* parsed sec= options */ 738#define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 739struct nfs_auth_info { 740 unsigned int flavor_len; 741 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 742}; 743 744/* 745 * Argument struct for decode_entry function 746 */ 747struct nfs_entry { 748 __u64 ino; 749 __u64 cookie; 750 const char * name; 751 unsigned int len; 752 int eof; 753 struct nfs_fh * fh; 754 struct nfs_fattr * fattr; 755 unsigned char d_type; 756 struct nfs_server * server; 757}; 758 759struct nfs_readdir_arg { 760 struct dentry *dentry; 761 const struct cred *cred; 762 __be32 *verf; 763 u64 cookie; 764 struct page **pages; 765 unsigned int page_len; 766 bool plus; 767}; 768 769struct nfs_readdir_res { 770 __be32 *verf; 771}; 772 773/* 774 * The following types are for NFSv2 only. 775 */ 776struct nfs_sattrargs { 777 struct nfs_fh * fh; 778 struct iattr * sattr; 779}; 780 781struct nfs_diropargs { 782 struct nfs_fh * fh; 783 const char * name; 784 unsigned int len; 785}; 786 787struct nfs_createargs { 788 struct nfs_fh * fh; 789 const char * name; 790 unsigned int len; 791 struct iattr * sattr; 792}; 793 794struct nfs_setattrargs { 795 struct nfs4_sequence_args seq_args; 796 struct nfs_fh * fh; 797 nfs4_stateid stateid; 798 struct iattr * iap; 799 const struct nfs_server * server; /* Needed for name mapping */ 800 const u32 * bitmask; 801 const struct nfs4_label *label; 802}; 803 804enum nfs4_acl_type { 805 NFS4ACL_NONE = 0, 806 NFS4ACL_ACL, 807 NFS4ACL_DACL, 808 NFS4ACL_SACL, 809}; 810 811struct nfs_setaclargs { 812 struct nfs4_sequence_args seq_args; 813 struct nfs_fh * fh; 814 enum nfs4_acl_type acl_type; 815 size_t acl_len; 816 struct page ** acl_pages; 817}; 818 819struct nfs_setaclres { 820 struct nfs4_sequence_res seq_res; 821}; 822 823struct nfs_getaclargs { 824 struct nfs4_sequence_args seq_args; 825 struct nfs_fh * fh; 826 enum nfs4_acl_type acl_type; 827 size_t acl_len; 828 struct page ** acl_pages; 829}; 830 831/* getxattr ACL interface flags */ 832#define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 833struct nfs_getaclres { 834 struct nfs4_sequence_res seq_res; 835 enum nfs4_acl_type acl_type; 836 size_t acl_len; 837 size_t acl_data_offset; 838 int acl_flags; 839 struct page * acl_scratch; 840}; 841 842struct nfs_setattrres { 843 struct nfs4_sequence_res seq_res; 844 struct nfs_fattr * fattr; 845 const struct nfs_server * server; 846}; 847 848struct nfs_linkargs { 849 struct nfs_fh * fromfh; 850 struct nfs_fh * tofh; 851 const char * toname; 852 unsigned int tolen; 853}; 854 855struct nfs_symlinkargs { 856 struct nfs_fh * fromfh; 857 const char * fromname; 858 unsigned int fromlen; 859 struct page ** pages; 860 unsigned int pathlen; 861 struct iattr * sattr; 862}; 863 864struct nfs_readdirargs { 865 struct nfs_fh * fh; 866 __u32 cookie; 867 unsigned int count; 868 struct page ** pages; 869}; 870 871struct nfs3_getaclargs { 872 struct nfs_fh * fh; 873 int mask; 874 struct page ** pages; 875}; 876 877struct nfs3_setaclargs { 878 struct inode * inode; 879 int mask; 880 struct posix_acl * acl_access; 881 struct posix_acl * acl_default; 882 size_t len; 883 unsigned int npages; 884 struct page ** pages; 885}; 886 887struct nfs_diropok { 888 struct nfs_fh * fh; 889 struct nfs_fattr * fattr; 890}; 891 892struct nfs_readlinkargs { 893 struct nfs_fh * fh; 894 unsigned int pgbase; 895 unsigned int pglen; 896 struct page ** pages; 897}; 898 899struct nfs3_sattrargs { 900 struct nfs_fh * fh; 901 struct iattr * sattr; 902 unsigned int guard; 903 struct timespec64 guardtime; 904}; 905 906struct nfs3_diropargs { 907 struct nfs_fh * fh; 908 const char * name; 909 unsigned int len; 910}; 911 912struct nfs3_accessargs { 913 struct nfs_fh * fh; 914 __u32 access; 915}; 916 917struct nfs3_createargs { 918 struct nfs_fh * fh; 919 const char * name; 920 unsigned int len; 921 struct iattr * sattr; 922 enum nfs3_createmode createmode; 923 __be32 verifier[2]; 924}; 925 926struct nfs3_mkdirargs { 927 struct nfs_fh * fh; 928 const char * name; 929 unsigned int len; 930 struct iattr * sattr; 931}; 932 933struct nfs3_symlinkargs { 934 struct nfs_fh * fromfh; 935 const char * fromname; 936 unsigned int fromlen; 937 struct page ** pages; 938 unsigned int pathlen; 939 struct iattr * sattr; 940}; 941 942struct nfs3_mknodargs { 943 struct nfs_fh * fh; 944 const char * name; 945 unsigned int len; 946 enum nfs3_ftype type; 947 struct iattr * sattr; 948 dev_t rdev; 949}; 950 951struct nfs3_linkargs { 952 struct nfs_fh * fromfh; 953 struct nfs_fh * tofh; 954 const char * toname; 955 unsigned int tolen; 956}; 957 958struct nfs3_readdirargs { 959 struct nfs_fh * fh; 960 __u64 cookie; 961 __be32 verf[2]; 962 bool plus; 963 unsigned int count; 964 struct page ** pages; 965}; 966 967struct nfs3_diropres { 968 struct nfs_fattr * dir_attr; 969 struct nfs_fh * fh; 970 struct nfs_fattr * fattr; 971}; 972 973struct nfs3_accessres { 974 struct nfs_fattr * fattr; 975 __u32 access; 976}; 977 978struct nfs3_readlinkargs { 979 struct nfs_fh * fh; 980 unsigned int pgbase; 981 unsigned int pglen; 982 struct page ** pages; 983}; 984 985struct nfs3_linkres { 986 struct nfs_fattr * dir_attr; 987 struct nfs_fattr * fattr; 988}; 989 990struct nfs3_readdirres { 991 struct nfs_fattr * dir_attr; 992 __be32 * verf; 993 bool plus; 994}; 995 996struct nfs3_getaclres { 997 struct nfs_fattr * fattr; 998 int mask; 999 unsigned int acl_access_count; 1000 unsigned int acl_default_count; 1001 struct posix_acl * acl_access; 1002 struct posix_acl * acl_default; 1003}; 1004 1005#if IS_ENABLED(CONFIG_NFS_V4) 1006 1007typedef u64 clientid4; 1008 1009struct nfs4_accessargs { 1010 struct nfs4_sequence_args seq_args; 1011 const struct nfs_fh * fh; 1012 const u32 * bitmask; 1013 u32 access; 1014}; 1015 1016struct nfs4_accessres { 1017 struct nfs4_sequence_res seq_res; 1018 const struct nfs_server * server; 1019 struct nfs_fattr * fattr; 1020 u32 supported; 1021 u32 access; 1022}; 1023 1024struct nfs4_create_arg { 1025 struct nfs4_sequence_args seq_args; 1026 u32 ftype; 1027 union { 1028 struct { 1029 struct page ** pages; 1030 unsigned int len; 1031 } symlink; /* NF4LNK */ 1032 struct { 1033 u32 specdata1; 1034 u32 specdata2; 1035 } device; /* NF4BLK, NF4CHR */ 1036 } u; 1037 const struct qstr * name; 1038 const struct nfs_server * server; 1039 const struct iattr * attrs; 1040 const struct nfs_fh * dir_fh; 1041 const u32 * bitmask; 1042 const struct nfs4_label *label; 1043 umode_t umask; 1044}; 1045 1046struct nfs4_create_res { 1047 struct nfs4_sequence_res seq_res; 1048 const struct nfs_server * server; 1049 struct nfs_fh * fh; 1050 struct nfs_fattr * fattr; 1051 struct nfs4_change_info dir_cinfo; 1052}; 1053 1054struct nfs4_fsinfo_arg { 1055 struct nfs4_sequence_args seq_args; 1056 const struct nfs_fh * fh; 1057 const u32 * bitmask; 1058}; 1059 1060struct nfs4_fsinfo_res { 1061 struct nfs4_sequence_res seq_res; 1062 struct nfs_fsinfo *fsinfo; 1063}; 1064 1065struct nfs4_getattr_arg { 1066 struct nfs4_sequence_args seq_args; 1067 const struct nfs_fh * fh; 1068 const u32 * bitmask; 1069}; 1070 1071struct nfs4_getattr_res { 1072 struct nfs4_sequence_res seq_res; 1073 const struct nfs_server * server; 1074 struct nfs_fattr * fattr; 1075}; 1076 1077struct nfs4_link_arg { 1078 struct nfs4_sequence_args seq_args; 1079 const struct nfs_fh * fh; 1080 const struct nfs_fh * dir_fh; 1081 const struct qstr * name; 1082 const u32 * bitmask; 1083}; 1084 1085struct nfs4_link_res { 1086 struct nfs4_sequence_res seq_res; 1087 const struct nfs_server * server; 1088 struct nfs_fattr * fattr; 1089 struct nfs4_change_info cinfo; 1090 struct nfs_fattr * dir_attr; 1091}; 1092 1093struct nfs4_lookup_arg { 1094 struct nfs4_sequence_args seq_args; 1095 const struct nfs_fh * dir_fh; 1096 const struct qstr * name; 1097 const u32 * bitmask; 1098}; 1099 1100struct nfs4_lookup_res { 1101 struct nfs4_sequence_res seq_res; 1102 const struct nfs_server * server; 1103 struct nfs_fattr * fattr; 1104 struct nfs_fh * fh; 1105}; 1106 1107struct nfs4_lookupp_arg { 1108 struct nfs4_sequence_args seq_args; 1109 const struct nfs_fh *fh; 1110 const u32 *bitmask; 1111}; 1112 1113struct nfs4_lookupp_res { 1114 struct nfs4_sequence_res seq_res; 1115 const struct nfs_server *server; 1116 struct nfs_fattr *fattr; 1117 struct nfs_fh *fh; 1118}; 1119 1120struct nfs4_lookup_root_arg { 1121 struct nfs4_sequence_args seq_args; 1122 const u32 * bitmask; 1123}; 1124 1125struct nfs4_pathconf_arg { 1126 struct nfs4_sequence_args seq_args; 1127 const struct nfs_fh * fh; 1128 const u32 * bitmask; 1129}; 1130 1131struct nfs4_pathconf_res { 1132 struct nfs4_sequence_res seq_res; 1133 struct nfs_pathconf *pathconf; 1134}; 1135 1136struct nfs4_readdir_arg { 1137 struct nfs4_sequence_args seq_args; 1138 const struct nfs_fh * fh; 1139 u64 cookie; 1140 nfs4_verifier verifier; 1141 u32 count; 1142 struct page ** pages; /* zero-copy data */ 1143 unsigned int pgbase; /* zero-copy data */ 1144 const u32 * bitmask; 1145 bool plus; 1146}; 1147 1148struct nfs4_readdir_res { 1149 struct nfs4_sequence_res seq_res; 1150 nfs4_verifier verifier; 1151 unsigned int pgbase; 1152}; 1153 1154struct nfs4_readlink { 1155 struct nfs4_sequence_args seq_args; 1156 const struct nfs_fh * fh; 1157 unsigned int pgbase; 1158 unsigned int pglen; /* zero-copy data */ 1159 struct page ** pages; /* zero-copy data */ 1160}; 1161 1162struct nfs4_readlink_res { 1163 struct nfs4_sequence_res seq_res; 1164}; 1165 1166struct nfs4_setclientid { 1167 const nfs4_verifier * sc_verifier; 1168 u32 sc_prog; 1169 unsigned int sc_netid_len; 1170 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1171 unsigned int sc_uaddr_len; 1172 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1173 struct nfs_client *sc_clnt; 1174 struct rpc_cred *sc_cred; 1175}; 1176 1177struct nfs4_setclientid_res { 1178 u64 clientid; 1179 nfs4_verifier confirm; 1180}; 1181 1182struct nfs4_statfs_arg { 1183 struct nfs4_sequence_args seq_args; 1184 const struct nfs_fh * fh; 1185 const u32 * bitmask; 1186}; 1187 1188struct nfs4_statfs_res { 1189 struct nfs4_sequence_res seq_res; 1190 struct nfs_fsstat *fsstat; 1191}; 1192 1193struct nfs4_server_caps_arg { 1194 struct nfs4_sequence_args seq_args; 1195 struct nfs_fh *fhandle; 1196 const u32 * bitmask; 1197}; 1198 1199struct nfs4_server_caps_res { 1200 struct nfs4_sequence_res seq_res; 1201 u32 attr_bitmask[3]; 1202 u32 exclcreat_bitmask[3]; 1203 u32 acl_bitmask; 1204 u32 has_links; 1205 u32 has_symlinks; 1206 u32 fh_expire_type; 1207 u32 case_insensitive; 1208 u32 case_preserving; 1209}; 1210 1211#define NFS4_PATHNAME_MAXCOMPONENTS 512 1212struct nfs4_pathname { 1213 unsigned int ncomponents; 1214 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1215}; 1216 1217#define NFS4_FS_LOCATION_MAXSERVERS 10 1218struct nfs4_fs_location { 1219 unsigned int nservers; 1220 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1221 struct nfs4_pathname rootpath; 1222}; 1223 1224#define NFS4_FS_LOCATIONS_MAXENTRIES 10 1225struct nfs4_fs_locations { 1226 struct nfs_fattr *fattr; 1227 const struct nfs_server *server; 1228 struct nfs4_pathname fs_path; 1229 int nlocations; 1230 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1231}; 1232 1233struct nfs4_fs_locations_arg { 1234 struct nfs4_sequence_args seq_args; 1235 const struct nfs_fh *dir_fh; 1236 const struct nfs_fh *fh; 1237 const struct qstr *name; 1238 struct page *page; 1239 const u32 *bitmask; 1240 clientid4 clientid; 1241 unsigned char migration:1, renew:1; 1242}; 1243 1244struct nfs4_fs_locations_res { 1245 struct nfs4_sequence_res seq_res; 1246 struct nfs4_fs_locations *fs_locations; 1247 unsigned char migration:1, renew:1; 1248}; 1249 1250struct nfs4_secinfo4 { 1251 u32 flavor; 1252 struct rpcsec_gss_info flavor_info; 1253}; 1254 1255struct nfs4_secinfo_flavors { 1256 unsigned int num_flavors; 1257 struct nfs4_secinfo4 flavors[]; 1258}; 1259 1260struct nfs4_secinfo_arg { 1261 struct nfs4_sequence_args seq_args; 1262 const struct nfs_fh *dir_fh; 1263 const struct qstr *name; 1264}; 1265 1266struct nfs4_secinfo_res { 1267 struct nfs4_sequence_res seq_res; 1268 struct nfs4_secinfo_flavors *flavors; 1269}; 1270 1271struct nfs4_fsid_present_arg { 1272 struct nfs4_sequence_args seq_args; 1273 const struct nfs_fh *fh; 1274 clientid4 clientid; 1275 unsigned char renew:1; 1276}; 1277 1278struct nfs4_fsid_present_res { 1279 struct nfs4_sequence_res seq_res; 1280 struct nfs_fh *fh; 1281 unsigned char renew:1; 1282}; 1283 1284#endif /* CONFIG_NFS_V4 */ 1285 1286struct nfstime4 { 1287 u64 seconds; 1288 u32 nseconds; 1289}; 1290 1291#ifdef CONFIG_NFS_V4_1 1292 1293struct pnfs_commit_bucket { 1294 struct list_head written; 1295 struct list_head committing; 1296 struct pnfs_layout_segment *lseg; 1297 struct nfs_writeverf direct_verf; 1298}; 1299 1300struct pnfs_commit_array { 1301 struct list_head cinfo_list; 1302 struct list_head lseg_list; 1303 struct pnfs_layout_segment *lseg; 1304 struct rcu_head rcu; 1305 refcount_t refcount; 1306 unsigned int nbuckets; 1307 struct pnfs_commit_bucket buckets[]; 1308}; 1309 1310struct pnfs_ds_commit_info { 1311 struct list_head commits; 1312 unsigned int nwritten; 1313 unsigned int ncommitting; 1314 const struct pnfs_commit_ops *ops; 1315}; 1316 1317struct nfs41_state_protection { 1318 u32 how; 1319 struct nfs4_op_map enforce; 1320 struct nfs4_op_map allow; 1321}; 1322 1323struct nfs41_exchange_id_args { 1324 struct nfs_client *client; 1325 nfs4_verifier verifier; 1326 u32 flags; 1327 struct nfs41_state_protection state_protect; 1328}; 1329 1330struct nfs41_server_owner { 1331 uint64_t minor_id; 1332 uint32_t major_id_sz; 1333 char major_id[NFS4_OPAQUE_LIMIT]; 1334}; 1335 1336struct nfs41_server_scope { 1337 uint32_t server_scope_sz; 1338 char server_scope[NFS4_OPAQUE_LIMIT]; 1339}; 1340 1341struct nfs41_impl_id { 1342 char domain[NFS4_OPAQUE_LIMIT + 1]; 1343 char name[NFS4_OPAQUE_LIMIT + 1]; 1344 struct nfstime4 date; 1345}; 1346 1347#define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1348struct nfs41_bind_conn_to_session_args { 1349 struct nfs_client *client; 1350 struct nfs4_sessionid sessionid; 1351 u32 dir; 1352 bool use_conn_in_rdma_mode; 1353 int retries; 1354}; 1355 1356struct nfs41_bind_conn_to_session_res { 1357 struct nfs4_sessionid sessionid; 1358 u32 dir; 1359 bool use_conn_in_rdma_mode; 1360}; 1361 1362struct nfs41_exchange_id_res { 1363 u64 clientid; 1364 u32 seqid; 1365 u32 flags; 1366 struct nfs41_server_owner *server_owner; 1367 struct nfs41_server_scope *server_scope; 1368 struct nfs41_impl_id *impl_id; 1369 struct nfs41_state_protection state_protect; 1370}; 1371 1372struct nfs41_create_session_args { 1373 struct nfs_client *client; 1374 u64 clientid; 1375 uint32_t seqid; 1376 uint32_t flags; 1377 uint32_t cb_program; 1378 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1379 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1380}; 1381 1382struct nfs41_create_session_res { 1383 struct nfs4_sessionid sessionid; 1384 uint32_t seqid; 1385 uint32_t flags; 1386 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1387 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1388}; 1389 1390struct nfs41_reclaim_complete_args { 1391 struct nfs4_sequence_args seq_args; 1392 /* In the future extend to include curr_fh for use with migration */ 1393 unsigned char one_fs:1; 1394}; 1395 1396struct nfs41_reclaim_complete_res { 1397 struct nfs4_sequence_res seq_res; 1398}; 1399 1400#define SECINFO_STYLE_CURRENT_FH 0 1401#define SECINFO_STYLE_PARENT 1 1402struct nfs41_secinfo_no_name_args { 1403 struct nfs4_sequence_args seq_args; 1404 int style; 1405}; 1406 1407struct nfs41_test_stateid_args { 1408 struct nfs4_sequence_args seq_args; 1409 nfs4_stateid *stateid; 1410}; 1411 1412struct nfs41_test_stateid_res { 1413 struct nfs4_sequence_res seq_res; 1414 unsigned int status; 1415}; 1416 1417struct nfs41_free_stateid_args { 1418 struct nfs4_sequence_args seq_args; 1419 nfs4_stateid stateid; 1420}; 1421 1422struct nfs41_free_stateid_res { 1423 struct nfs4_sequence_res seq_res; 1424 unsigned int status; 1425}; 1426 1427#else 1428 1429struct pnfs_ds_commit_info { 1430}; 1431 1432#endif /* CONFIG_NFS_V4_1 */ 1433 1434#ifdef CONFIG_NFS_V4_2 1435struct nfs42_falloc_args { 1436 struct nfs4_sequence_args seq_args; 1437 1438 struct nfs_fh *falloc_fh; 1439 nfs4_stateid falloc_stateid; 1440 u64 falloc_offset; 1441 u64 falloc_length; 1442 const u32 *falloc_bitmask; 1443}; 1444 1445struct nfs42_falloc_res { 1446 struct nfs4_sequence_res seq_res; 1447 unsigned int status; 1448 1449 struct nfs_fattr *falloc_fattr; 1450 const struct nfs_server *falloc_server; 1451}; 1452 1453struct nfs42_copy_args { 1454 struct nfs4_sequence_args seq_args; 1455 1456 struct nfs_fh *src_fh; 1457 nfs4_stateid src_stateid; 1458 u64 src_pos; 1459 1460 struct nfs_fh *dst_fh; 1461 nfs4_stateid dst_stateid; 1462 u64 dst_pos; 1463 1464 u64 count; 1465 bool sync; 1466 struct nl4_server *cp_src; 1467}; 1468 1469struct nfs42_write_res { 1470 nfs4_stateid stateid; 1471 u64 count; 1472 struct nfs_writeverf verifier; 1473}; 1474 1475struct nfs42_copy_res { 1476 struct nfs4_sequence_res seq_res; 1477 struct nfs42_write_res write_res; 1478 bool consecutive; 1479 bool synchronous; 1480 struct nfs_commitres commit_res; 1481}; 1482 1483struct nfs42_offload_status_args { 1484 struct nfs4_sequence_args osa_seq_args; 1485 struct nfs_fh *osa_src_fh; 1486 nfs4_stateid osa_stateid; 1487}; 1488 1489struct nfs42_offload_status_res { 1490 struct nfs4_sequence_res osr_seq_res; 1491 uint64_t osr_count; 1492 int osr_status; 1493}; 1494 1495struct nfs42_copy_notify_args { 1496 struct nfs4_sequence_args cna_seq_args; 1497 1498 struct nfs_fh *cna_src_fh; 1499 nfs4_stateid cna_src_stateid; 1500 struct nl4_server cna_dst; 1501}; 1502 1503struct nfs42_copy_notify_res { 1504 struct nfs4_sequence_res cnr_seq_res; 1505 1506 struct nfstime4 cnr_lease_time; 1507 nfs4_stateid cnr_stateid; 1508 struct nl4_server cnr_src; 1509}; 1510 1511struct nfs42_seek_args { 1512 struct nfs4_sequence_args seq_args; 1513 1514 struct nfs_fh *sa_fh; 1515 nfs4_stateid sa_stateid; 1516 u64 sa_offset; 1517 u32 sa_what; 1518}; 1519 1520struct nfs42_seek_res { 1521 struct nfs4_sequence_res seq_res; 1522 unsigned int status; 1523 1524 u32 sr_eof; 1525 u64 sr_offset; 1526}; 1527 1528struct nfs42_setxattrargs { 1529 struct nfs4_sequence_args seq_args; 1530 struct nfs_fh *fh; 1531 const u32 *bitmask; 1532 const char *xattr_name; 1533 u32 xattr_flags; 1534 size_t xattr_len; 1535 struct page **xattr_pages; 1536}; 1537 1538struct nfs42_setxattrres { 1539 struct nfs4_sequence_res seq_res; 1540 struct nfs4_change_info cinfo; 1541 struct nfs_fattr *fattr; 1542 const struct nfs_server *server; 1543}; 1544 1545struct nfs42_getxattrargs { 1546 struct nfs4_sequence_args seq_args; 1547 struct nfs_fh *fh; 1548 const char *xattr_name; 1549 size_t xattr_len; 1550 struct page **xattr_pages; 1551}; 1552 1553struct nfs42_getxattrres { 1554 struct nfs4_sequence_res seq_res; 1555 size_t xattr_len; 1556}; 1557 1558struct nfs42_listxattrsargs { 1559 struct nfs4_sequence_args seq_args; 1560 struct nfs_fh *fh; 1561 u32 count; 1562 u64 cookie; 1563 struct page **xattr_pages; 1564}; 1565 1566struct nfs42_listxattrsres { 1567 struct nfs4_sequence_res seq_res; 1568 struct page *scratch; 1569 void *xattr_buf; 1570 size_t xattr_len; 1571 u64 cookie; 1572 bool eof; 1573 size_t copied; 1574}; 1575 1576struct nfs42_removexattrargs { 1577 struct nfs4_sequence_args seq_args; 1578 struct nfs_fh *fh; 1579 const char *xattr_name; 1580}; 1581 1582struct nfs42_removexattrres { 1583 struct nfs4_sequence_res seq_res; 1584 struct nfs4_change_info cinfo; 1585}; 1586 1587#endif /* CONFIG_NFS_V4_2 */ 1588 1589struct nfs_page; 1590 1591#define NFS_PAGEVEC_SIZE (8U) 1592 1593struct nfs_page_array { 1594 struct page **pagevec; 1595 unsigned int npages; /* Max length of pagevec */ 1596 struct page *page_array[NFS_PAGEVEC_SIZE]; 1597}; 1598 1599/* used as flag bits in nfs_pgio_header */ 1600enum { 1601 NFS_IOHDR_ERROR = 0, 1602 NFS_IOHDR_EOF, 1603 NFS_IOHDR_REDO, 1604 NFS_IOHDR_STAT, 1605 NFS_IOHDR_RESEND_PNFS, 1606 NFS_IOHDR_RESEND_MDS, 1607 NFS_IOHDR_UNSTABLE_WRITES, 1608}; 1609 1610struct nfs_io_completion; 1611struct nfs_pgio_header { 1612 struct inode *inode; 1613 const struct cred *cred; 1614 struct list_head pages; 1615 struct nfs_page *req; 1616 struct nfs_writeverf verf; /* Used for writes */ 1617 fmode_t rw_mode; 1618 struct pnfs_layout_segment *lseg; 1619 loff_t io_start; 1620 const struct rpc_call_ops *mds_ops; 1621 void (*release) (struct nfs_pgio_header *hdr); 1622 const struct nfs_pgio_completion_ops *completion_ops; 1623 const struct nfs_rw_ops *rw_ops; 1624 struct nfs_io_completion *io_completion; 1625 struct nfs_direct_req *dreq; 1626#ifdef CONFIG_NFS_FSCACHE 1627 void *netfs; 1628#endif 1629 1630 int pnfs_error; 1631 int error; /* merge with pnfs_error */ 1632 unsigned int good_bytes; /* boundary of good data */ 1633 unsigned long flags; 1634 1635 /* 1636 * rpc data 1637 */ 1638 struct rpc_task task; 1639 struct nfs_fattr fattr; 1640 struct nfs_pgio_args args; /* argument struct */ 1641 struct nfs_pgio_res res; /* result struct */ 1642 unsigned long timestamp; /* For lease renewal */ 1643 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1644 __u64 mds_offset; /* Filelayout dense stripe */ 1645 struct nfs_page_array page_array; 1646 struct nfs_client *ds_clp; /* pNFS data server */ 1647 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1648 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1649}; 1650 1651struct nfs_mds_commit_info { 1652 atomic_t rpcs_out; 1653 atomic_long_t ncommit; 1654 struct list_head list; 1655}; 1656 1657struct nfs_commit_info; 1658struct nfs_commit_data; 1659struct nfs_inode; 1660struct nfs_commit_completion_ops { 1661 void (*completion) (struct nfs_commit_data *data); 1662 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1663}; 1664 1665struct nfs_commit_info { 1666 struct inode *inode; /* Needed for inode->i_lock */ 1667 struct nfs_mds_commit_info *mds; 1668 struct pnfs_ds_commit_info *ds; 1669 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1670 const struct nfs_commit_completion_ops *completion_ops; 1671}; 1672 1673struct nfs_commit_data { 1674 struct rpc_task task; 1675 struct inode *inode; 1676 const struct cred *cred; 1677 struct nfs_fattr fattr; 1678 struct nfs_writeverf verf; 1679 struct list_head pages; /* Coalesced requests we wish to flush */ 1680 struct list_head list; /* lists of struct nfs_write_data */ 1681 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1682 struct nfs_commitargs args; /* argument struct */ 1683 struct nfs_commitres res; /* result struct */ 1684 struct nfs_open_context *context; 1685 struct pnfs_layout_segment *lseg; 1686 struct nfs_client *ds_clp; /* pNFS data server */ 1687 int ds_commit_index; 1688 loff_t lwb; 1689 const struct rpc_call_ops *mds_ops; 1690 const struct nfs_commit_completion_ops *completion_ops; 1691 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1692 unsigned long flags; 1693}; 1694 1695struct nfs_pgio_completion_ops { 1696 void (*error_cleanup)(struct list_head *head, int); 1697 void (*init_hdr)(struct nfs_pgio_header *hdr); 1698 void (*completion)(struct nfs_pgio_header *hdr); 1699 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1700}; 1701 1702struct nfs_unlinkdata { 1703 struct nfs_removeargs args; 1704 struct nfs_removeres res; 1705 struct dentry *dentry; 1706 wait_queue_head_t wq; 1707 const struct cred *cred; 1708 struct nfs_fattr dir_attr; 1709 long timeout; 1710}; 1711 1712struct nfs_renamedata { 1713 struct nfs_renameargs args; 1714 struct nfs_renameres res; 1715 struct rpc_task task; 1716 const struct cred *cred; 1717 struct inode *old_dir; 1718 struct dentry *old_dentry; 1719 struct nfs_fattr old_fattr; 1720 struct inode *new_dir; 1721 struct dentry *new_dentry; 1722 struct nfs_fattr new_fattr; 1723 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1724 long timeout; 1725 bool cancelled; 1726}; 1727 1728struct nfs_access_entry; 1729struct nfs_client; 1730struct rpc_timeout; 1731struct nfs_subversion; 1732struct nfs_mount_info; 1733struct nfs_client_initdata; 1734struct nfs_pageio_descriptor; 1735struct fs_context; 1736 1737/* 1738 * RPC procedure vector for NFSv2/NFSv3 demuxing 1739 */ 1740struct nfs_rpc_ops { 1741 u32 version; /* Protocol version */ 1742 const struct dentry_operations *dentry_ops; 1743 const struct inode_operations *dir_inode_ops; 1744 const struct inode_operations *file_inode_ops; 1745 const struct file_operations *file_ops; 1746 const struct nlmclnt_operations *nlmclnt_ops; 1747 1748 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1749 struct nfs_fsinfo *); 1750 int (*submount) (struct fs_context *, struct nfs_server *); 1751 int (*try_get_tree) (struct fs_context *); 1752 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1753 struct nfs_fattr *, struct inode *); 1754 int (*setattr) (struct dentry *, struct nfs_fattr *, 1755 struct iattr *); 1756 int (*lookup) (struct inode *, struct dentry *, 1757 struct nfs_fh *, struct nfs_fattr *); 1758 int (*lookupp) (struct inode *, struct nfs_fh *, 1759 struct nfs_fattr *); 1760 int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *); 1761 int (*readlink)(struct inode *, struct page *, unsigned int, 1762 unsigned int); 1763 int (*create) (struct inode *, struct dentry *, 1764 struct iattr *, int); 1765 int (*remove) (struct inode *, struct dentry *); 1766 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1767 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1768 int (*unlink_done) (struct rpc_task *, struct inode *); 1769 void (*rename_setup) (struct rpc_message *msg, 1770 struct dentry *old_dentry, 1771 struct dentry *new_dentry); 1772 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1773 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1774 int (*link) (struct inode *, struct inode *, const struct qstr *); 1775 int (*symlink) (struct inode *, struct dentry *, struct folio *, 1776 unsigned int, struct iattr *); 1777 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1778 int (*rmdir) (struct inode *, const struct qstr *); 1779 int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); 1780 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1781 dev_t); 1782 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1783 struct nfs_fsstat *); 1784 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1785 struct nfs_fsinfo *); 1786 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1787 struct nfs_pathconf *); 1788 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1789 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1790 int (*pgio_rpc_prepare)(struct rpc_task *, 1791 struct nfs_pgio_header *); 1792 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1793 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1794 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1795 struct rpc_clnt **); 1796 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1797 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1798 struct rpc_clnt **); 1799 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1800 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1801 int (*lock)(struct file *, int, struct file_lock *); 1802 int (*lock_check_bounds)(const struct file_lock *); 1803 void (*clear_acl_cache)(struct inode *); 1804 void (*close_context)(struct nfs_open_context *ctx, int); 1805 struct inode * (*open_context) (struct inode *dir, 1806 struct nfs_open_context *ctx, 1807 int open_flags, 1808 struct iattr *iattr, 1809 int *); 1810 int (*have_delegation)(struct inode *, fmode_t); 1811 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1812 struct nfs_client *(*init_client) (struct nfs_client *, 1813 const struct nfs_client_initdata *); 1814 void (*free_client) (struct nfs_client *); 1815 struct nfs_server *(*create_server)(struct fs_context *); 1816 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1817 struct nfs_fattr *, rpc_authflavor_t); 1818 int (*discover_trunking)(struct nfs_server *, struct nfs_fh *); 1819 void (*enable_swap)(struct inode *inode); 1820 void (*disable_swap)(struct inode *inode); 1821}; 1822 1823/* 1824 * Function vectors etc. for the NFS client 1825 */ 1826extern const struct nfs_rpc_ops nfs_v2_clientops; 1827extern const struct nfs_rpc_ops nfs_v3_clientops; 1828extern const struct nfs_rpc_ops nfs_v4_clientops; 1829extern const struct rpc_version nfs_version2; 1830extern const struct rpc_version nfs_version3; 1831extern const struct rpc_version nfs_version4; 1832 1833extern const struct rpc_version nfsacl_version3; 1834extern const struct rpc_program nfsacl_program; 1835 1836#endif 1837