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 struct nfs4_string { 19 unsigned int len; 20 char *data; 21 }; 22 23 struct nfs_fsid { 24 uint64_t major; 25 uint64_t minor; 26 }; 27 28 /* 29 * Helper for checking equality between 2 fsids. 30 */ 31 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 32 { 33 return a->major == b->major && a->minor == b->minor; 34 } 35 36 struct nfs4_threshold { 37 __u32 bm; 38 __u32 l_type; 39 __u64 rd_sz; 40 __u64 wr_sz; 41 __u64 rd_io_sz; 42 __u64 wr_io_sz; 43 }; 44 45 struct nfs_fattr { 46 unsigned int valid; /* which fields are valid */ 47 umode_t mode; 48 __u32 nlink; 49 kuid_t uid; 50 kgid_t gid; 51 dev_t rdev; 52 __u64 size; 53 union { 54 struct { 55 __u32 blocksize; 56 __u32 blocks; 57 } nfs2; 58 struct { 59 __u64 used; 60 } nfs3; 61 } du; 62 struct nfs_fsid fsid; 63 __u64 fileid; 64 __u64 mounted_on_fileid; 65 struct timespec64 atime; 66 struct timespec64 mtime; 67 struct timespec64 ctime; 68 __u64 change_attr; /* NFSv4 change attribute */ 69 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 70 __u64 pre_size; /* pre_op_attr.size */ 71 struct timespec64 pre_mtime; /* pre_op_attr.mtime */ 72 struct timespec64 pre_ctime; /* pre_op_attr.ctime */ 73 unsigned long time_start; 74 unsigned long gencount; 75 struct nfs4_string *owner_name; 76 struct nfs4_string *group_name; 77 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */ 78 }; 79 80 #define NFS_ATTR_FATTR_TYPE (1U << 0) 81 #define NFS_ATTR_FATTR_MODE (1U << 1) 82 #define NFS_ATTR_FATTR_NLINK (1U << 2) 83 #define NFS_ATTR_FATTR_OWNER (1U << 3) 84 #define NFS_ATTR_FATTR_GROUP (1U << 4) 85 #define NFS_ATTR_FATTR_RDEV (1U << 5) 86 #define NFS_ATTR_FATTR_SIZE (1U << 6) 87 #define NFS_ATTR_FATTR_PRESIZE (1U << 7) 88 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 89 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 90 #define NFS_ATTR_FATTR_FSID (1U << 10) 91 #define NFS_ATTR_FATTR_FILEID (1U << 11) 92 #define NFS_ATTR_FATTR_ATIME (1U << 12) 93 #define NFS_ATTR_FATTR_MTIME (1U << 13) 94 #define NFS_ATTR_FATTR_CTIME (1U << 14) 95 #define NFS_ATTR_FATTR_PREMTIME (1U << 15) 96 #define NFS_ATTR_FATTR_PRECTIME (1U << 16) 97 #define NFS_ATTR_FATTR_CHANGE (1U << 17) 98 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 99 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) 100 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) 101 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) 102 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) 103 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) 104 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) 105 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) 106 107 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 108 | NFS_ATTR_FATTR_MODE \ 109 | NFS_ATTR_FATTR_NLINK \ 110 | NFS_ATTR_FATTR_OWNER \ 111 | NFS_ATTR_FATTR_GROUP \ 112 | NFS_ATTR_FATTR_RDEV \ 113 | NFS_ATTR_FATTR_SIZE \ 114 | NFS_ATTR_FATTR_FSID \ 115 | NFS_ATTR_FATTR_FILEID \ 116 | NFS_ATTR_FATTR_ATIME \ 117 | NFS_ATTR_FATTR_MTIME \ 118 | NFS_ATTR_FATTR_CTIME \ 119 | NFS_ATTR_FATTR_CHANGE) 120 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 121 | NFS_ATTR_FATTR_BLOCKS_USED) 122 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 123 | NFS_ATTR_FATTR_SPACE_USED) 124 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 125 | NFS_ATTR_FATTR_SPACE_USED \ 126 | NFS_ATTR_FATTR_V4_SECURITY_LABEL) 127 128 /* 129 * Maximal number of supported layout drivers. 130 */ 131 #define NFS_MAX_LAYOUT_TYPES 8 132 133 /* 134 * Info on the file system 135 */ 136 struct nfs_fsinfo { 137 struct nfs_fattr *fattr; /* Post-op attributes */ 138 __u32 rtmax; /* max. read transfer size */ 139 __u32 rtpref; /* pref. read transfer size */ 140 __u32 rtmult; /* reads should be multiple of this */ 141 __u32 wtmax; /* max. write transfer size */ 142 __u32 wtpref; /* pref. write transfer size */ 143 __u32 wtmult; /* writes should be multiple of this */ 144 __u32 dtpref; /* pref. readdir transfer size */ 145 __u64 maxfilesize; 146 struct timespec64 time_delta; /* server time granularity */ 147 __u32 lease_time; /* in seconds */ 148 __u32 nlayouttypes; /* number of layouttypes */ 149 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 150 __u32 blksize; /* preferred pnfs io block size */ 151 __u32 clone_blksize; /* granularity of a CLONE operation */ 152 }; 153 154 struct nfs_fsstat { 155 struct nfs_fattr *fattr; /* Post-op attributes */ 156 __u64 tbytes; /* total size in bytes */ 157 __u64 fbytes; /* # of free bytes */ 158 __u64 abytes; /* # of bytes available to user */ 159 __u64 tfiles; /* # of files */ 160 __u64 ffiles; /* # of free files */ 161 __u64 afiles; /* # of files available to user */ 162 }; 163 164 struct nfs2_fsstat { 165 __u32 tsize; /* Server transfer size */ 166 __u32 bsize; /* Filesystem block size */ 167 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 168 __u32 bfree; /* No. of free "bsize" blocks */ 169 __u32 bavail; /* No. of available "bsize" blocks */ 170 }; 171 172 struct nfs_pathconf { 173 struct nfs_fattr *fattr; /* Post-op attributes */ 174 __u32 max_link; /* max # of hard links */ 175 __u32 max_namelen; /* max name length */ 176 }; 177 178 struct nfs4_change_info { 179 u32 atomic; 180 u64 before; 181 u64 after; 182 }; 183 184 struct nfs_seqid; 185 186 /* nfs41 sessions channel attributes */ 187 struct nfs4_channel_attrs { 188 u32 max_rqst_sz; 189 u32 max_resp_sz; 190 u32 max_resp_sz_cached; 191 u32 max_ops; 192 u32 max_reqs; 193 }; 194 195 struct nfs4_slot; 196 struct nfs4_sequence_args { 197 struct nfs4_slot *sa_slot; 198 u8 sa_cache_this : 1, 199 sa_privileged : 1; 200 }; 201 202 struct nfs4_sequence_res { 203 struct nfs4_slot *sr_slot; /* slot used to send request */ 204 unsigned long sr_timestamp; 205 int sr_status; /* sequence operation status */ 206 u32 sr_status_flags; 207 u32 sr_highest_slotid; 208 u32 sr_target_highest_slotid; 209 }; 210 211 struct nfs4_get_lease_time_args { 212 struct nfs4_sequence_args la_seq_args; 213 }; 214 215 struct nfs4_get_lease_time_res { 216 struct nfs4_sequence_res lr_seq_res; 217 struct nfs_fsinfo *lr_fsinfo; 218 }; 219 220 struct xdr_stream; 221 struct nfs4_xdr_opaque_data; 222 223 struct nfs4_xdr_opaque_ops { 224 void (*encode)(struct xdr_stream *, const void *args, 225 const struct nfs4_xdr_opaque_data *); 226 void (*free)(struct nfs4_xdr_opaque_data *); 227 }; 228 229 struct nfs4_xdr_opaque_data { 230 const struct nfs4_xdr_opaque_ops *ops; 231 void *data; 232 }; 233 234 #define PNFS_LAYOUT_MAXSIZE 4096 235 236 struct nfs4_layoutdriver_data { 237 struct page **pages; 238 __u32 pglen; 239 __u32 len; 240 }; 241 242 struct pnfs_layout_range { 243 u32 iomode; 244 u64 offset; 245 u64 length; 246 }; 247 248 struct nfs4_layoutget_args { 249 struct nfs4_sequence_args seq_args; 250 __u32 type; 251 struct pnfs_layout_range range; 252 __u64 minlength; 253 __u32 maxcount; 254 struct inode *inode; 255 struct nfs_open_context *ctx; 256 nfs4_stateid stateid; 257 struct nfs4_layoutdriver_data layout; 258 }; 259 260 struct nfs4_layoutget_res { 261 struct nfs4_sequence_res seq_res; 262 int status; 263 __u32 return_on_close; 264 struct pnfs_layout_range range; 265 __u32 type; 266 nfs4_stateid stateid; 267 struct nfs4_layoutdriver_data *layoutp; 268 }; 269 270 struct nfs4_layoutget { 271 struct nfs4_layoutget_args args; 272 struct nfs4_layoutget_res res; 273 const struct cred *cred; 274 gfp_t gfp_flags; 275 }; 276 277 struct nfs4_getdeviceinfo_args { 278 struct nfs4_sequence_args seq_args; 279 struct pnfs_device *pdev; 280 __u32 notify_types; 281 }; 282 283 struct nfs4_getdeviceinfo_res { 284 struct nfs4_sequence_res seq_res; 285 struct pnfs_device *pdev; 286 __u32 notification; 287 }; 288 289 struct nfs4_layoutcommit_args { 290 struct nfs4_sequence_args seq_args; 291 nfs4_stateid stateid; 292 __u64 lastbytewritten; 293 struct inode *inode; 294 const u32 *bitmask; 295 size_t layoutupdate_len; 296 struct page *layoutupdate_page; 297 struct page **layoutupdate_pages; 298 __be32 *start_p; 299 }; 300 301 struct nfs4_layoutcommit_res { 302 struct nfs4_sequence_res seq_res; 303 struct nfs_fattr *fattr; 304 const struct nfs_server *server; 305 int status; 306 }; 307 308 struct nfs4_layoutcommit_data { 309 struct rpc_task task; 310 struct nfs_fattr fattr; 311 struct list_head lseg_list; 312 const struct cred *cred; 313 struct inode *inode; 314 struct nfs4_layoutcommit_args args; 315 struct nfs4_layoutcommit_res res; 316 }; 317 318 struct nfs4_layoutreturn_args { 319 struct nfs4_sequence_args seq_args; 320 struct pnfs_layout_hdr *layout; 321 struct inode *inode; 322 struct pnfs_layout_range range; 323 nfs4_stateid stateid; 324 __u32 layout_type; 325 struct nfs4_xdr_opaque_data *ld_private; 326 }; 327 328 struct nfs4_layoutreturn_res { 329 struct nfs4_sequence_res seq_res; 330 u32 lrs_present; 331 nfs4_stateid stateid; 332 }; 333 334 struct nfs4_layoutreturn { 335 struct nfs4_layoutreturn_args args; 336 struct nfs4_layoutreturn_res res; 337 const struct cred *cred; 338 struct nfs_client *clp; 339 struct inode *inode; 340 int rpc_status; 341 struct nfs4_xdr_opaque_data ld_private; 342 }; 343 344 #define PNFS_LAYOUTSTATS_MAXSIZE 256 345 346 struct nfs42_layoutstat_args; 347 struct nfs42_layoutstat_devinfo; 348 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 349 struct nfs42_layoutstat_args *, 350 struct nfs42_layoutstat_devinfo *); 351 352 /* Per file per deviceid layoutstats */ 353 struct nfs42_layoutstat_devinfo { 354 struct nfs4_deviceid dev_id; 355 __u64 offset; 356 __u64 length; 357 __u64 read_count; 358 __u64 read_bytes; 359 __u64 write_count; 360 __u64 write_bytes; 361 __u32 layout_type; 362 struct nfs4_xdr_opaque_data ld_private; 363 }; 364 365 struct nfs42_layoutstat_args { 366 struct nfs4_sequence_args seq_args; 367 struct nfs_fh *fh; 368 struct inode *inode; 369 nfs4_stateid stateid; 370 int num_dev; 371 struct nfs42_layoutstat_devinfo *devinfo; 372 }; 373 374 struct nfs42_layoutstat_res { 375 struct nfs4_sequence_res seq_res; 376 int num_dev; 377 int rpc_status; 378 }; 379 380 struct nfs42_layoutstat_data { 381 struct inode *inode; 382 struct nfs42_layoutstat_args args; 383 struct nfs42_layoutstat_res res; 384 }; 385 386 struct nfs42_device_error { 387 struct nfs4_deviceid dev_id; 388 int status; 389 enum nfs_opnum4 opnum; 390 }; 391 392 struct nfs42_layout_error { 393 __u64 offset; 394 __u64 length; 395 nfs4_stateid stateid; 396 struct nfs42_device_error errors[1]; 397 }; 398 399 #define NFS42_LAYOUTERROR_MAX 5 400 401 struct nfs42_layouterror_args { 402 struct nfs4_sequence_args seq_args; 403 struct inode *inode; 404 unsigned int num_errors; 405 struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX]; 406 }; 407 408 struct nfs42_layouterror_res { 409 struct nfs4_sequence_res seq_res; 410 unsigned int num_errors; 411 int rpc_status; 412 }; 413 414 struct nfs42_layouterror_data { 415 struct nfs42_layouterror_args args; 416 struct nfs42_layouterror_res res; 417 struct inode *inode; 418 struct pnfs_layout_segment *lseg; 419 }; 420 421 struct nfs42_clone_args { 422 struct nfs4_sequence_args seq_args; 423 struct nfs_fh *src_fh; 424 struct nfs_fh *dst_fh; 425 nfs4_stateid src_stateid; 426 nfs4_stateid dst_stateid; 427 __u64 src_offset; 428 __u64 dst_offset; 429 __u64 count; 430 const u32 *dst_bitmask; 431 }; 432 433 struct nfs42_clone_res { 434 struct nfs4_sequence_res seq_res; 435 unsigned int rpc_status; 436 struct nfs_fattr *dst_fattr; 437 const struct nfs_server *server; 438 }; 439 440 struct stateowner_id { 441 __u64 create_time; 442 __u32 uniquifier; 443 }; 444 445 /* 446 * Arguments to the open call. 447 */ 448 struct nfs_openargs { 449 struct nfs4_sequence_args seq_args; 450 const struct nfs_fh * fh; 451 struct nfs_seqid * seqid; 452 int open_flags; 453 fmode_t fmode; 454 u32 share_access; 455 u32 access; 456 __u64 clientid; 457 struct stateowner_id id; 458 union { 459 struct { 460 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 461 nfs4_verifier verifier; /* EXCLUSIVE */ 462 }; 463 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 464 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 465 } u; 466 const struct qstr * name; 467 const struct nfs_server *server; /* Needed for ID mapping */ 468 const u32 * bitmask; 469 const u32 * open_bitmap; 470 enum open_claim_type4 claim; 471 enum createmode4 createmode; 472 const struct nfs4_label *label; 473 umode_t umask; 474 struct nfs4_layoutget_args *lg_args; 475 }; 476 477 struct nfs_openres { 478 struct nfs4_sequence_res seq_res; 479 nfs4_stateid stateid; 480 struct nfs_fh fh; 481 struct nfs4_change_info cinfo; 482 __u32 rflags; 483 struct nfs_fattr * f_attr; 484 struct nfs4_label *f_label; 485 struct nfs_seqid * seqid; 486 const struct nfs_server *server; 487 fmode_t delegation_type; 488 nfs4_stateid delegation; 489 unsigned long pagemod_limit; 490 __u32 do_recall; 491 __u32 attrset[NFS4_BITMAP_SIZE]; 492 struct nfs4_string *owner; 493 struct nfs4_string *group_owner; 494 __u32 access_request; 495 __u32 access_supported; 496 __u32 access_result; 497 struct nfs4_layoutget_res *lg_res; 498 }; 499 500 /* 501 * Arguments to the open_confirm call. 502 */ 503 struct nfs_open_confirmargs { 504 struct nfs4_sequence_args seq_args; 505 const struct nfs_fh * fh; 506 nfs4_stateid * stateid; 507 struct nfs_seqid * seqid; 508 }; 509 510 struct nfs_open_confirmres { 511 struct nfs4_sequence_res seq_res; 512 nfs4_stateid stateid; 513 struct nfs_seqid * seqid; 514 }; 515 516 /* 517 * Arguments to the close call. 518 */ 519 struct nfs_closeargs { 520 struct nfs4_sequence_args seq_args; 521 struct nfs_fh * fh; 522 nfs4_stateid stateid; 523 struct nfs_seqid * seqid; 524 fmode_t fmode; 525 u32 share_access; 526 const u32 * bitmask; 527 struct nfs4_layoutreturn_args *lr_args; 528 }; 529 530 struct nfs_closeres { 531 struct nfs4_sequence_res seq_res; 532 nfs4_stateid stateid; 533 struct nfs_fattr * fattr; 534 struct nfs_seqid * seqid; 535 const struct nfs_server *server; 536 struct nfs4_layoutreturn_res *lr_res; 537 int lr_ret; 538 }; 539 /* 540 * * Arguments to the lock,lockt, and locku call. 541 * */ 542 struct nfs_lowner { 543 __u64 clientid; 544 __u64 id; 545 dev_t s_dev; 546 }; 547 548 struct nfs_lock_args { 549 struct nfs4_sequence_args seq_args; 550 struct nfs_fh * fh; 551 struct file_lock * fl; 552 struct nfs_seqid * lock_seqid; 553 nfs4_stateid lock_stateid; 554 struct nfs_seqid * open_seqid; 555 nfs4_stateid open_stateid; 556 struct nfs_lowner lock_owner; 557 unsigned char block : 1; 558 unsigned char reclaim : 1; 559 unsigned char new_lock : 1; 560 unsigned char new_lock_owner : 1; 561 }; 562 563 struct nfs_lock_res { 564 struct nfs4_sequence_res seq_res; 565 nfs4_stateid stateid; 566 struct nfs_seqid * lock_seqid; 567 struct nfs_seqid * open_seqid; 568 }; 569 570 struct nfs_locku_args { 571 struct nfs4_sequence_args seq_args; 572 struct nfs_fh * fh; 573 struct file_lock * fl; 574 struct nfs_seqid * seqid; 575 nfs4_stateid stateid; 576 }; 577 578 struct nfs_locku_res { 579 struct nfs4_sequence_res seq_res; 580 nfs4_stateid stateid; 581 struct nfs_seqid * seqid; 582 }; 583 584 struct nfs_lockt_args { 585 struct nfs4_sequence_args seq_args; 586 struct nfs_fh * fh; 587 struct file_lock * fl; 588 struct nfs_lowner lock_owner; 589 }; 590 591 struct nfs_lockt_res { 592 struct nfs4_sequence_res seq_res; 593 struct file_lock * denied; /* LOCK, LOCKT failed */ 594 }; 595 596 struct nfs_release_lockowner_args { 597 struct nfs4_sequence_args seq_args; 598 struct nfs_lowner lock_owner; 599 }; 600 601 struct nfs_release_lockowner_res { 602 struct nfs4_sequence_res seq_res; 603 }; 604 605 struct nfs4_delegreturnargs { 606 struct nfs4_sequence_args seq_args; 607 const struct nfs_fh *fhandle; 608 const nfs4_stateid *stateid; 609 const u32 * bitmask; 610 struct nfs4_layoutreturn_args *lr_args; 611 }; 612 613 struct nfs4_delegreturnres { 614 struct nfs4_sequence_res seq_res; 615 struct nfs_fattr * fattr; 616 struct nfs_server *server; 617 struct nfs4_layoutreturn_res *lr_res; 618 int lr_ret; 619 }; 620 621 /* 622 * Arguments to the write call. 623 */ 624 struct nfs_write_verifier { 625 char data[8]; 626 }; 627 628 struct nfs_writeverf { 629 struct nfs_write_verifier verifier; 630 enum nfs3_stable_how committed; 631 }; 632 633 /* 634 * Arguments shared by the read and write call. 635 */ 636 struct nfs_pgio_args { 637 struct nfs4_sequence_args seq_args; 638 struct nfs_fh * fh; 639 struct nfs_open_context *context; 640 struct nfs_lock_context *lock_context; 641 nfs4_stateid stateid; 642 __u64 offset; 643 __u32 count; 644 unsigned int pgbase; 645 struct page ** pages; 646 union { 647 unsigned int replen; /* used by read */ 648 struct { 649 const u32 * bitmask; /* used by write */ 650 enum nfs3_stable_how stable; /* used by write */ 651 }; 652 }; 653 }; 654 655 struct nfs_pgio_res { 656 struct nfs4_sequence_res seq_res; 657 struct nfs_fattr * fattr; 658 __u32 count; 659 __u32 op_status; 660 union { 661 struct { 662 unsigned int replen; /* used by read */ 663 int eof; /* used by read */ 664 }; 665 struct { 666 struct nfs_writeverf * verf; /* used by write */ 667 const struct nfs_server *server; /* used by write */ 668 }; 669 }; 670 }; 671 672 /* 673 * Arguments to the commit call. 674 */ 675 struct nfs_commitargs { 676 struct nfs4_sequence_args seq_args; 677 struct nfs_fh *fh; 678 __u64 offset; 679 __u32 count; 680 const u32 *bitmask; 681 }; 682 683 struct nfs_commitres { 684 struct nfs4_sequence_res seq_res; 685 __u32 op_status; 686 struct nfs_fattr *fattr; 687 struct nfs_writeverf *verf; 688 const struct nfs_server *server; 689 }; 690 691 /* 692 * Common arguments to the unlink call 693 */ 694 struct nfs_removeargs { 695 struct nfs4_sequence_args seq_args; 696 const struct nfs_fh *fh; 697 struct qstr name; 698 }; 699 700 struct nfs_removeres { 701 struct nfs4_sequence_res seq_res; 702 struct nfs_server *server; 703 struct nfs_fattr *dir_attr; 704 struct nfs4_change_info cinfo; 705 }; 706 707 /* 708 * Common arguments to the rename call 709 */ 710 struct nfs_renameargs { 711 struct nfs4_sequence_args seq_args; 712 const struct nfs_fh *old_dir; 713 const struct nfs_fh *new_dir; 714 const struct qstr *old_name; 715 const struct qstr *new_name; 716 }; 717 718 struct nfs_renameres { 719 struct nfs4_sequence_res seq_res; 720 struct nfs_server *server; 721 struct nfs4_change_info old_cinfo; 722 struct nfs_fattr *old_fattr; 723 struct nfs4_change_info new_cinfo; 724 struct nfs_fattr *new_fattr; 725 }; 726 727 /* parsed sec= options */ 728 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 729 struct nfs_auth_info { 730 unsigned int flavor_len; 731 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 732 }; 733 734 /* 735 * Argument struct for decode_entry function 736 */ 737 struct nfs_entry { 738 __u64 ino; 739 __u64 cookie, 740 prev_cookie; 741 const char * name; 742 unsigned int len; 743 int eof; 744 struct nfs_fh * fh; 745 struct nfs_fattr * fattr; 746 struct nfs4_label *label; 747 unsigned char d_type; 748 struct nfs_server * server; 749 }; 750 751 /* 752 * The following types are for NFSv2 only. 753 */ 754 struct nfs_sattrargs { 755 struct nfs_fh * fh; 756 struct iattr * sattr; 757 }; 758 759 struct nfs_diropargs { 760 struct nfs_fh * fh; 761 const char * name; 762 unsigned int len; 763 }; 764 765 struct nfs_createargs { 766 struct nfs_fh * fh; 767 const char * name; 768 unsigned int len; 769 struct iattr * sattr; 770 }; 771 772 struct nfs_setattrargs { 773 struct nfs4_sequence_args seq_args; 774 struct nfs_fh * fh; 775 nfs4_stateid stateid; 776 struct iattr * iap; 777 const struct nfs_server * server; /* Needed for name mapping */ 778 const u32 * bitmask; 779 const struct nfs4_label *label; 780 }; 781 782 struct nfs_setaclargs { 783 struct nfs4_sequence_args seq_args; 784 struct nfs_fh * fh; 785 size_t acl_len; 786 struct page ** acl_pages; 787 }; 788 789 struct nfs_setaclres { 790 struct nfs4_sequence_res seq_res; 791 }; 792 793 struct nfs_getaclargs { 794 struct nfs4_sequence_args seq_args; 795 struct nfs_fh * fh; 796 size_t acl_len; 797 struct page ** acl_pages; 798 }; 799 800 /* getxattr ACL interface flags */ 801 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 802 struct nfs_getaclres { 803 struct nfs4_sequence_res seq_res; 804 size_t acl_len; 805 size_t acl_data_offset; 806 int acl_flags; 807 struct page * acl_scratch; 808 }; 809 810 struct nfs_setattrres { 811 struct nfs4_sequence_res seq_res; 812 struct nfs_fattr * fattr; 813 struct nfs4_label *label; 814 const struct nfs_server * server; 815 }; 816 817 struct nfs_linkargs { 818 struct nfs_fh * fromfh; 819 struct nfs_fh * tofh; 820 const char * toname; 821 unsigned int tolen; 822 }; 823 824 struct nfs_symlinkargs { 825 struct nfs_fh * fromfh; 826 const char * fromname; 827 unsigned int fromlen; 828 struct page ** pages; 829 unsigned int pathlen; 830 struct iattr * sattr; 831 }; 832 833 struct nfs_readdirargs { 834 struct nfs_fh * fh; 835 __u32 cookie; 836 unsigned int count; 837 struct page ** pages; 838 }; 839 840 struct nfs3_getaclargs { 841 struct nfs_fh * fh; 842 int mask; 843 struct page ** pages; 844 }; 845 846 struct nfs3_setaclargs { 847 struct inode * inode; 848 int mask; 849 struct posix_acl * acl_access; 850 struct posix_acl * acl_default; 851 size_t len; 852 unsigned int npages; 853 struct page ** pages; 854 }; 855 856 struct nfs_diropok { 857 struct nfs_fh * fh; 858 struct nfs_fattr * fattr; 859 }; 860 861 struct nfs_readlinkargs { 862 struct nfs_fh * fh; 863 unsigned int pgbase; 864 unsigned int pglen; 865 struct page ** pages; 866 }; 867 868 struct nfs3_sattrargs { 869 struct nfs_fh * fh; 870 struct iattr * sattr; 871 unsigned int guard; 872 struct timespec64 guardtime; 873 }; 874 875 struct nfs3_diropargs { 876 struct nfs_fh * fh; 877 const char * name; 878 unsigned int len; 879 }; 880 881 struct nfs3_accessargs { 882 struct nfs_fh * fh; 883 __u32 access; 884 }; 885 886 struct nfs3_createargs { 887 struct nfs_fh * fh; 888 const char * name; 889 unsigned int len; 890 struct iattr * sattr; 891 enum nfs3_createmode createmode; 892 __be32 verifier[2]; 893 }; 894 895 struct nfs3_mkdirargs { 896 struct nfs_fh * fh; 897 const char * name; 898 unsigned int len; 899 struct iattr * sattr; 900 }; 901 902 struct nfs3_symlinkargs { 903 struct nfs_fh * fromfh; 904 const char * fromname; 905 unsigned int fromlen; 906 struct page ** pages; 907 unsigned int pathlen; 908 struct iattr * sattr; 909 }; 910 911 struct nfs3_mknodargs { 912 struct nfs_fh * fh; 913 const char * name; 914 unsigned int len; 915 enum nfs3_ftype type; 916 struct iattr * sattr; 917 dev_t rdev; 918 }; 919 920 struct nfs3_linkargs { 921 struct nfs_fh * fromfh; 922 struct nfs_fh * tofh; 923 const char * toname; 924 unsigned int tolen; 925 }; 926 927 struct nfs3_readdirargs { 928 struct nfs_fh * fh; 929 __u64 cookie; 930 __be32 verf[2]; 931 bool plus; 932 unsigned int count; 933 struct page ** pages; 934 }; 935 936 struct nfs3_diropres { 937 struct nfs_fattr * dir_attr; 938 struct nfs_fh * fh; 939 struct nfs_fattr * fattr; 940 }; 941 942 struct nfs3_accessres { 943 struct nfs_fattr * fattr; 944 __u32 access; 945 }; 946 947 struct nfs3_readlinkargs { 948 struct nfs_fh * fh; 949 unsigned int pgbase; 950 unsigned int pglen; 951 struct page ** pages; 952 }; 953 954 struct nfs3_linkres { 955 struct nfs_fattr * dir_attr; 956 struct nfs_fattr * fattr; 957 }; 958 959 struct nfs3_readdirres { 960 struct nfs_fattr * dir_attr; 961 __be32 * verf; 962 bool plus; 963 }; 964 965 struct nfs3_getaclres { 966 struct nfs_fattr * fattr; 967 int mask; 968 unsigned int acl_access_count; 969 unsigned int acl_default_count; 970 struct posix_acl * acl_access; 971 struct posix_acl * acl_default; 972 }; 973 974 #if IS_ENABLED(CONFIG_NFS_V4) 975 976 typedef u64 clientid4; 977 978 struct nfs4_accessargs { 979 struct nfs4_sequence_args seq_args; 980 const struct nfs_fh * fh; 981 const u32 * bitmask; 982 u32 access; 983 }; 984 985 struct nfs4_accessres { 986 struct nfs4_sequence_res seq_res; 987 const struct nfs_server * server; 988 struct nfs_fattr * fattr; 989 u32 supported; 990 u32 access; 991 }; 992 993 struct nfs4_create_arg { 994 struct nfs4_sequence_args seq_args; 995 u32 ftype; 996 union { 997 struct { 998 struct page ** pages; 999 unsigned int len; 1000 } symlink; /* NF4LNK */ 1001 struct { 1002 u32 specdata1; 1003 u32 specdata2; 1004 } device; /* NF4BLK, NF4CHR */ 1005 } u; 1006 const struct qstr * name; 1007 const struct nfs_server * server; 1008 const struct iattr * attrs; 1009 const struct nfs_fh * dir_fh; 1010 const u32 * bitmask; 1011 const struct nfs4_label *label; 1012 umode_t umask; 1013 }; 1014 1015 struct nfs4_create_res { 1016 struct nfs4_sequence_res seq_res; 1017 const struct nfs_server * server; 1018 struct nfs_fh * fh; 1019 struct nfs_fattr * fattr; 1020 struct nfs4_label *label; 1021 struct nfs4_change_info dir_cinfo; 1022 }; 1023 1024 struct nfs4_fsinfo_arg { 1025 struct nfs4_sequence_args seq_args; 1026 const struct nfs_fh * fh; 1027 const u32 * bitmask; 1028 }; 1029 1030 struct nfs4_fsinfo_res { 1031 struct nfs4_sequence_res seq_res; 1032 struct nfs_fsinfo *fsinfo; 1033 }; 1034 1035 struct nfs4_getattr_arg { 1036 struct nfs4_sequence_args seq_args; 1037 const struct nfs_fh * fh; 1038 const u32 * bitmask; 1039 }; 1040 1041 struct nfs4_getattr_res { 1042 struct nfs4_sequence_res seq_res; 1043 const struct nfs_server * server; 1044 struct nfs_fattr * fattr; 1045 struct nfs4_label *label; 1046 }; 1047 1048 struct nfs4_link_arg { 1049 struct nfs4_sequence_args seq_args; 1050 const struct nfs_fh * fh; 1051 const struct nfs_fh * dir_fh; 1052 const struct qstr * name; 1053 const u32 * bitmask; 1054 }; 1055 1056 struct nfs4_link_res { 1057 struct nfs4_sequence_res seq_res; 1058 const struct nfs_server * server; 1059 struct nfs_fattr * fattr; 1060 struct nfs4_label *label; 1061 struct nfs4_change_info cinfo; 1062 struct nfs_fattr * dir_attr; 1063 }; 1064 1065 struct nfs4_lookup_arg { 1066 struct nfs4_sequence_args seq_args; 1067 const struct nfs_fh * dir_fh; 1068 const struct qstr * name; 1069 const u32 * bitmask; 1070 }; 1071 1072 struct nfs4_lookup_res { 1073 struct nfs4_sequence_res seq_res; 1074 const struct nfs_server * server; 1075 struct nfs_fattr * fattr; 1076 struct nfs_fh * fh; 1077 struct nfs4_label *label; 1078 }; 1079 1080 struct nfs4_lookupp_arg { 1081 struct nfs4_sequence_args seq_args; 1082 const struct nfs_fh *fh; 1083 const u32 *bitmask; 1084 }; 1085 1086 struct nfs4_lookupp_res { 1087 struct nfs4_sequence_res seq_res; 1088 const struct nfs_server *server; 1089 struct nfs_fattr *fattr; 1090 struct nfs_fh *fh; 1091 struct nfs4_label *label; 1092 }; 1093 1094 struct nfs4_lookup_root_arg { 1095 struct nfs4_sequence_args seq_args; 1096 const u32 * bitmask; 1097 }; 1098 1099 struct nfs4_pathconf_arg { 1100 struct nfs4_sequence_args seq_args; 1101 const struct nfs_fh * fh; 1102 const u32 * bitmask; 1103 }; 1104 1105 struct nfs4_pathconf_res { 1106 struct nfs4_sequence_res seq_res; 1107 struct nfs_pathconf *pathconf; 1108 }; 1109 1110 struct nfs4_readdir_arg { 1111 struct nfs4_sequence_args seq_args; 1112 const struct nfs_fh * fh; 1113 u64 cookie; 1114 nfs4_verifier verifier; 1115 u32 count; 1116 struct page ** pages; /* zero-copy data */ 1117 unsigned int pgbase; /* zero-copy data */ 1118 const u32 * bitmask; 1119 bool plus; 1120 }; 1121 1122 struct nfs4_readdir_res { 1123 struct nfs4_sequence_res seq_res; 1124 nfs4_verifier verifier; 1125 unsigned int pgbase; 1126 }; 1127 1128 struct nfs4_readlink { 1129 struct nfs4_sequence_args seq_args; 1130 const struct nfs_fh * fh; 1131 unsigned int pgbase; 1132 unsigned int pglen; /* zero-copy data */ 1133 struct page ** pages; /* zero-copy data */ 1134 }; 1135 1136 struct nfs4_readlink_res { 1137 struct nfs4_sequence_res seq_res; 1138 }; 1139 1140 struct nfs4_setclientid { 1141 const nfs4_verifier * sc_verifier; 1142 u32 sc_prog; 1143 unsigned int sc_netid_len; 1144 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1145 unsigned int sc_uaddr_len; 1146 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1147 struct nfs_client *sc_clnt; 1148 struct rpc_cred *sc_cred; 1149 }; 1150 1151 struct nfs4_setclientid_res { 1152 u64 clientid; 1153 nfs4_verifier confirm; 1154 }; 1155 1156 struct nfs4_statfs_arg { 1157 struct nfs4_sequence_args seq_args; 1158 const struct nfs_fh * fh; 1159 const u32 * bitmask; 1160 }; 1161 1162 struct nfs4_statfs_res { 1163 struct nfs4_sequence_res seq_res; 1164 struct nfs_fsstat *fsstat; 1165 }; 1166 1167 struct nfs4_server_caps_arg { 1168 struct nfs4_sequence_args seq_args; 1169 struct nfs_fh *fhandle; 1170 const u32 * bitmask; 1171 }; 1172 1173 struct nfs4_server_caps_res { 1174 struct nfs4_sequence_res seq_res; 1175 u32 attr_bitmask[3]; 1176 u32 exclcreat_bitmask[3]; 1177 u32 acl_bitmask; 1178 u32 has_links; 1179 u32 has_symlinks; 1180 u32 fh_expire_type; 1181 }; 1182 1183 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1184 struct nfs4_pathname { 1185 unsigned int ncomponents; 1186 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1187 }; 1188 1189 #define NFS4_FS_LOCATION_MAXSERVERS 10 1190 struct nfs4_fs_location { 1191 unsigned int nservers; 1192 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1193 struct nfs4_pathname rootpath; 1194 }; 1195 1196 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1197 struct nfs4_fs_locations { 1198 struct nfs_fattr fattr; 1199 const struct nfs_server *server; 1200 struct nfs4_pathname fs_path; 1201 int nlocations; 1202 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1203 }; 1204 1205 struct nfs4_fs_locations_arg { 1206 struct nfs4_sequence_args seq_args; 1207 const struct nfs_fh *dir_fh; 1208 const struct nfs_fh *fh; 1209 const struct qstr *name; 1210 struct page *page; 1211 const u32 *bitmask; 1212 clientid4 clientid; 1213 unsigned char migration:1, renew:1; 1214 }; 1215 1216 struct nfs4_fs_locations_res { 1217 struct nfs4_sequence_res seq_res; 1218 struct nfs4_fs_locations *fs_locations; 1219 unsigned char migration:1, renew:1; 1220 }; 1221 1222 struct nfs4_secinfo4 { 1223 u32 flavor; 1224 struct rpcsec_gss_info flavor_info; 1225 }; 1226 1227 struct nfs4_secinfo_flavors { 1228 unsigned int num_flavors; 1229 struct nfs4_secinfo4 flavors[0]; 1230 }; 1231 1232 struct nfs4_secinfo_arg { 1233 struct nfs4_sequence_args seq_args; 1234 const struct nfs_fh *dir_fh; 1235 const struct qstr *name; 1236 }; 1237 1238 struct nfs4_secinfo_res { 1239 struct nfs4_sequence_res seq_res; 1240 struct nfs4_secinfo_flavors *flavors; 1241 }; 1242 1243 struct nfs4_fsid_present_arg { 1244 struct nfs4_sequence_args seq_args; 1245 const struct nfs_fh *fh; 1246 clientid4 clientid; 1247 unsigned char renew:1; 1248 }; 1249 1250 struct nfs4_fsid_present_res { 1251 struct nfs4_sequence_res seq_res; 1252 struct nfs_fh *fh; 1253 unsigned char renew:1; 1254 }; 1255 1256 #endif /* CONFIG_NFS_V4 */ 1257 1258 struct nfstime4 { 1259 u64 seconds; 1260 u32 nseconds; 1261 }; 1262 1263 #ifdef CONFIG_NFS_V4_1 1264 1265 struct pnfs_commit_bucket { 1266 struct list_head written; 1267 struct list_head committing; 1268 struct pnfs_layout_segment *wlseg; 1269 struct pnfs_layout_segment *clseg; 1270 struct nfs_writeverf direct_verf; 1271 }; 1272 1273 struct pnfs_ds_commit_info { 1274 int nwritten; 1275 int ncommitting; 1276 int nbuckets; 1277 struct pnfs_commit_bucket *buckets; 1278 }; 1279 1280 struct nfs41_state_protection { 1281 u32 how; 1282 struct nfs4_op_map enforce; 1283 struct nfs4_op_map allow; 1284 }; 1285 1286 struct nfs41_exchange_id_args { 1287 struct nfs_client *client; 1288 nfs4_verifier verifier; 1289 u32 flags; 1290 struct nfs41_state_protection state_protect; 1291 }; 1292 1293 struct nfs41_server_owner { 1294 uint64_t minor_id; 1295 uint32_t major_id_sz; 1296 char major_id[NFS4_OPAQUE_LIMIT]; 1297 }; 1298 1299 struct nfs41_server_scope { 1300 uint32_t server_scope_sz; 1301 char server_scope[NFS4_OPAQUE_LIMIT]; 1302 }; 1303 1304 struct nfs41_impl_id { 1305 char domain[NFS4_OPAQUE_LIMIT + 1]; 1306 char name[NFS4_OPAQUE_LIMIT + 1]; 1307 struct nfstime4 date; 1308 }; 1309 1310 struct nfs41_bind_conn_to_session_args { 1311 struct nfs_client *client; 1312 struct nfs4_sessionid sessionid; 1313 u32 dir; 1314 bool use_conn_in_rdma_mode; 1315 }; 1316 1317 struct nfs41_bind_conn_to_session_res { 1318 struct nfs4_sessionid sessionid; 1319 u32 dir; 1320 bool use_conn_in_rdma_mode; 1321 }; 1322 1323 struct nfs41_exchange_id_res { 1324 u64 clientid; 1325 u32 seqid; 1326 u32 flags; 1327 struct nfs41_server_owner *server_owner; 1328 struct nfs41_server_scope *server_scope; 1329 struct nfs41_impl_id *impl_id; 1330 struct nfs41_state_protection state_protect; 1331 }; 1332 1333 struct nfs41_create_session_args { 1334 struct nfs_client *client; 1335 u64 clientid; 1336 uint32_t seqid; 1337 uint32_t flags; 1338 uint32_t cb_program; 1339 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1340 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1341 }; 1342 1343 struct nfs41_create_session_res { 1344 struct nfs4_sessionid sessionid; 1345 uint32_t seqid; 1346 uint32_t flags; 1347 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1348 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1349 }; 1350 1351 struct nfs41_reclaim_complete_args { 1352 struct nfs4_sequence_args seq_args; 1353 /* In the future extend to include curr_fh for use with migration */ 1354 unsigned char one_fs:1; 1355 }; 1356 1357 struct nfs41_reclaim_complete_res { 1358 struct nfs4_sequence_res seq_res; 1359 }; 1360 1361 #define SECINFO_STYLE_CURRENT_FH 0 1362 #define SECINFO_STYLE_PARENT 1 1363 struct nfs41_secinfo_no_name_args { 1364 struct nfs4_sequence_args seq_args; 1365 int style; 1366 }; 1367 1368 struct nfs41_test_stateid_args { 1369 struct nfs4_sequence_args seq_args; 1370 nfs4_stateid *stateid; 1371 }; 1372 1373 struct nfs41_test_stateid_res { 1374 struct nfs4_sequence_res seq_res; 1375 unsigned int status; 1376 }; 1377 1378 struct nfs41_free_stateid_args { 1379 struct nfs4_sequence_args seq_args; 1380 nfs4_stateid stateid; 1381 }; 1382 1383 struct nfs41_free_stateid_res { 1384 struct nfs4_sequence_res seq_res; 1385 unsigned int status; 1386 }; 1387 1388 static inline void 1389 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1390 { 1391 kfree(cinfo->buckets); 1392 } 1393 1394 #else 1395 1396 struct pnfs_ds_commit_info { 1397 }; 1398 1399 static inline void 1400 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1401 { 1402 } 1403 1404 #endif /* CONFIG_NFS_V4_1 */ 1405 1406 #ifdef CONFIG_NFS_V4_2 1407 struct nfs42_falloc_args { 1408 struct nfs4_sequence_args seq_args; 1409 1410 struct nfs_fh *falloc_fh; 1411 nfs4_stateid falloc_stateid; 1412 u64 falloc_offset; 1413 u64 falloc_length; 1414 const u32 *falloc_bitmask; 1415 }; 1416 1417 struct nfs42_falloc_res { 1418 struct nfs4_sequence_res seq_res; 1419 unsigned int status; 1420 1421 struct nfs_fattr *falloc_fattr; 1422 const struct nfs_server *falloc_server; 1423 }; 1424 1425 struct nfs42_copy_args { 1426 struct nfs4_sequence_args seq_args; 1427 1428 struct nfs_fh *src_fh; 1429 nfs4_stateid src_stateid; 1430 u64 src_pos; 1431 1432 struct nfs_fh *dst_fh; 1433 nfs4_stateid dst_stateid; 1434 u64 dst_pos; 1435 1436 u64 count; 1437 bool sync; 1438 struct nl4_server *cp_src; 1439 }; 1440 1441 struct nfs42_write_res { 1442 nfs4_stateid stateid; 1443 u64 count; 1444 struct nfs_writeverf verifier; 1445 }; 1446 1447 struct nfs42_copy_res { 1448 struct nfs4_sequence_res seq_res; 1449 struct nfs42_write_res write_res; 1450 bool consecutive; 1451 bool synchronous; 1452 struct nfs_commitres commit_res; 1453 }; 1454 1455 struct nfs42_offload_status_args { 1456 struct nfs4_sequence_args osa_seq_args; 1457 struct nfs_fh *osa_src_fh; 1458 nfs4_stateid osa_stateid; 1459 }; 1460 1461 struct nfs42_offload_status_res { 1462 struct nfs4_sequence_res osr_seq_res; 1463 uint64_t osr_count; 1464 int osr_status; 1465 }; 1466 1467 struct nfs42_copy_notify_args { 1468 struct nfs4_sequence_args cna_seq_args; 1469 1470 struct nfs_fh *cna_src_fh; 1471 nfs4_stateid cna_src_stateid; 1472 struct nl4_server cna_dst; 1473 }; 1474 1475 struct nfs42_copy_notify_res { 1476 struct nfs4_sequence_res cnr_seq_res; 1477 1478 struct nfstime4 cnr_lease_time; 1479 nfs4_stateid cnr_stateid; 1480 struct nl4_server cnr_src; 1481 }; 1482 1483 struct nfs42_seek_args { 1484 struct nfs4_sequence_args seq_args; 1485 1486 struct nfs_fh *sa_fh; 1487 nfs4_stateid sa_stateid; 1488 u64 sa_offset; 1489 u32 sa_what; 1490 }; 1491 1492 struct nfs42_seek_res { 1493 struct nfs4_sequence_res seq_res; 1494 unsigned int status; 1495 1496 u32 sr_eof; 1497 u64 sr_offset; 1498 }; 1499 #endif 1500 1501 struct nfs_page; 1502 1503 #define NFS_PAGEVEC_SIZE (8U) 1504 1505 struct nfs_page_array { 1506 struct page **pagevec; 1507 unsigned int npages; /* Max length of pagevec */ 1508 struct page *page_array[NFS_PAGEVEC_SIZE]; 1509 }; 1510 1511 /* used as flag bits in nfs_pgio_header */ 1512 enum { 1513 NFS_IOHDR_ERROR = 0, 1514 NFS_IOHDR_EOF, 1515 NFS_IOHDR_REDO, 1516 NFS_IOHDR_STAT, 1517 NFS_IOHDR_RESEND_PNFS, 1518 NFS_IOHDR_RESEND_MDS, 1519 }; 1520 1521 struct nfs_io_completion; 1522 struct nfs_pgio_header { 1523 struct inode *inode; 1524 const struct cred *cred; 1525 struct list_head pages; 1526 struct nfs_page *req; 1527 struct nfs_writeverf verf; /* Used for writes */ 1528 fmode_t rw_mode; 1529 struct pnfs_layout_segment *lseg; 1530 loff_t io_start; 1531 const struct rpc_call_ops *mds_ops; 1532 void (*release) (struct nfs_pgio_header *hdr); 1533 const struct nfs_pgio_completion_ops *completion_ops; 1534 const struct nfs_rw_ops *rw_ops; 1535 struct nfs_io_completion *io_completion; 1536 struct nfs_direct_req *dreq; 1537 1538 int pnfs_error; 1539 int error; /* merge with pnfs_error */ 1540 unsigned int good_bytes; /* boundary of good data */ 1541 unsigned long flags; 1542 1543 /* 1544 * rpc data 1545 */ 1546 struct rpc_task task; 1547 struct nfs_fattr fattr; 1548 struct nfs_pgio_args args; /* argument struct */ 1549 struct nfs_pgio_res res; /* result struct */ 1550 unsigned long timestamp; /* For lease renewal */ 1551 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1552 __u64 mds_offset; /* Filelayout dense stripe */ 1553 struct nfs_page_array page_array; 1554 struct nfs_client *ds_clp; /* pNFS data server */ 1555 int ds_commit_idx; /* ds index if ds_clp is set */ 1556 int pgio_mirror_idx;/* mirror index in pgio layer */ 1557 }; 1558 1559 struct nfs_mds_commit_info { 1560 atomic_t rpcs_out; 1561 atomic_long_t ncommit; 1562 struct list_head list; 1563 }; 1564 1565 struct nfs_commit_info; 1566 struct nfs_commit_data; 1567 struct nfs_inode; 1568 struct nfs_commit_completion_ops { 1569 void (*completion) (struct nfs_commit_data *data); 1570 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1571 }; 1572 1573 struct nfs_commit_info { 1574 struct inode *inode; /* Needed for inode->i_lock */ 1575 struct nfs_mds_commit_info *mds; 1576 struct pnfs_ds_commit_info *ds; 1577 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1578 const struct nfs_commit_completion_ops *completion_ops; 1579 }; 1580 1581 struct nfs_commit_data { 1582 struct rpc_task task; 1583 struct inode *inode; 1584 const struct cred *cred; 1585 struct nfs_fattr fattr; 1586 struct nfs_writeverf verf; 1587 struct list_head pages; /* Coalesced requests we wish to flush */ 1588 struct list_head list; /* lists of struct nfs_write_data */ 1589 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1590 struct nfs_commitargs args; /* argument struct */ 1591 struct nfs_commitres res; /* result struct */ 1592 struct nfs_open_context *context; 1593 struct pnfs_layout_segment *lseg; 1594 struct nfs_client *ds_clp; /* pNFS data server */ 1595 int ds_commit_index; 1596 loff_t lwb; 1597 const struct rpc_call_ops *mds_ops; 1598 const struct nfs_commit_completion_ops *completion_ops; 1599 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1600 unsigned long flags; 1601 }; 1602 1603 struct nfs_pgio_completion_ops { 1604 void (*error_cleanup)(struct list_head *head, int); 1605 void (*init_hdr)(struct nfs_pgio_header *hdr); 1606 void (*completion)(struct nfs_pgio_header *hdr); 1607 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1608 }; 1609 1610 struct nfs_unlinkdata { 1611 struct nfs_removeargs args; 1612 struct nfs_removeres res; 1613 struct dentry *dentry; 1614 wait_queue_head_t wq; 1615 const struct cred *cred; 1616 struct nfs_fattr dir_attr; 1617 long timeout; 1618 }; 1619 1620 struct nfs_renamedata { 1621 struct nfs_renameargs args; 1622 struct nfs_renameres res; 1623 const struct cred *cred; 1624 struct inode *old_dir; 1625 struct dentry *old_dentry; 1626 struct nfs_fattr old_fattr; 1627 struct inode *new_dir; 1628 struct dentry *new_dentry; 1629 struct nfs_fattr new_fattr; 1630 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1631 long timeout; 1632 bool cancelled; 1633 }; 1634 1635 struct nfs_access_entry; 1636 struct nfs_client; 1637 struct rpc_timeout; 1638 struct nfs_subversion; 1639 struct nfs_mount_info; 1640 struct nfs_client_initdata; 1641 struct nfs_pageio_descriptor; 1642 struct fs_context; 1643 1644 /* 1645 * RPC procedure vector for NFSv2/NFSv3 demuxing 1646 */ 1647 struct nfs_rpc_ops { 1648 u32 version; /* Protocol version */ 1649 const struct dentry_operations *dentry_ops; 1650 const struct inode_operations *dir_inode_ops; 1651 const struct inode_operations *file_inode_ops; 1652 const struct file_operations *file_ops; 1653 const struct nlmclnt_operations *nlmclnt_ops; 1654 1655 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1656 struct nfs_fsinfo *); 1657 int (*submount) (struct fs_context *, struct nfs_server *); 1658 int (*try_get_tree) (struct fs_context *); 1659 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1660 struct nfs_fattr *, struct nfs4_label *, 1661 struct inode *); 1662 int (*setattr) (struct dentry *, struct nfs_fattr *, 1663 struct iattr *); 1664 int (*lookup) (struct inode *, struct dentry *, 1665 struct nfs_fh *, struct nfs_fattr *, 1666 struct nfs4_label *); 1667 int (*lookupp) (struct inode *, struct nfs_fh *, 1668 struct nfs_fattr *, struct nfs4_label *); 1669 int (*access) (struct inode *, struct nfs_access_entry *); 1670 int (*readlink)(struct inode *, struct page *, unsigned int, 1671 unsigned int); 1672 int (*create) (struct inode *, struct dentry *, 1673 struct iattr *, int); 1674 int (*remove) (struct inode *, struct dentry *); 1675 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1676 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1677 int (*unlink_done) (struct rpc_task *, struct inode *); 1678 void (*rename_setup) (struct rpc_message *msg, 1679 struct dentry *old_dentry, 1680 struct dentry *new_dentry); 1681 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1682 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1683 int (*link) (struct inode *, struct inode *, const struct qstr *); 1684 int (*symlink) (struct inode *, struct dentry *, struct page *, 1685 unsigned int, struct iattr *); 1686 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1687 int (*rmdir) (struct inode *, const struct qstr *); 1688 int (*readdir) (struct dentry *, const struct cred *, 1689 u64, struct page **, unsigned int, bool); 1690 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1691 dev_t); 1692 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1693 struct nfs_fsstat *); 1694 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1695 struct nfs_fsinfo *); 1696 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1697 struct nfs_pathconf *); 1698 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1699 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1700 int (*pgio_rpc_prepare)(struct rpc_task *, 1701 struct nfs_pgio_header *); 1702 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1703 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1704 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1705 struct rpc_clnt **); 1706 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1707 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1708 struct rpc_clnt **); 1709 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1710 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1711 int (*lock)(struct file *, int, struct file_lock *); 1712 int (*lock_check_bounds)(const struct file_lock *); 1713 void (*clear_acl_cache)(struct inode *); 1714 void (*close_context)(struct nfs_open_context *ctx, int); 1715 struct inode * (*open_context) (struct inode *dir, 1716 struct nfs_open_context *ctx, 1717 int open_flags, 1718 struct iattr *iattr, 1719 int *); 1720 int (*have_delegation)(struct inode *, fmode_t); 1721 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1722 struct nfs_client *(*init_client) (struct nfs_client *, 1723 const struct nfs_client_initdata *); 1724 void (*free_client) (struct nfs_client *); 1725 struct nfs_server *(*create_server)(struct fs_context *); 1726 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1727 struct nfs_fattr *, rpc_authflavor_t); 1728 }; 1729 1730 /* 1731 * NFS_CALL(getattr, inode, (fattr)); 1732 * into 1733 * NFS_PROTO(inode)->getattr(fattr); 1734 */ 1735 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1736 1737 /* 1738 * Function vectors etc. for the NFS client 1739 */ 1740 extern const struct nfs_rpc_ops nfs_v2_clientops; 1741 extern const struct nfs_rpc_ops nfs_v3_clientops; 1742 extern const struct nfs_rpc_ops nfs_v4_clientops; 1743 extern const struct rpc_version nfs_version2; 1744 extern const struct rpc_version nfs_version3; 1745 extern const struct rpc_version nfs_version4; 1746 1747 extern const struct rpc_version nfsacl_version3; 1748 extern const struct rpc_program nfsacl_program; 1749 1750 #endif 1751