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 struct nfs4_label *label; 79 }; 80 81 #define NFS_ATTR_FATTR_TYPE (1U << 0) 82 #define NFS_ATTR_FATTR_MODE (1U << 1) 83 #define NFS_ATTR_FATTR_NLINK (1U << 2) 84 #define NFS_ATTR_FATTR_OWNER (1U << 3) 85 #define NFS_ATTR_FATTR_GROUP (1U << 4) 86 #define NFS_ATTR_FATTR_RDEV (1U << 5) 87 #define NFS_ATTR_FATTR_SIZE (1U << 6) 88 #define NFS_ATTR_FATTR_PRESIZE (1U << 7) 89 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 90 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 91 #define NFS_ATTR_FATTR_FSID (1U << 10) 92 #define NFS_ATTR_FATTR_FILEID (1U << 11) 93 #define NFS_ATTR_FATTR_ATIME (1U << 12) 94 #define NFS_ATTR_FATTR_MTIME (1U << 13) 95 #define NFS_ATTR_FATTR_CTIME (1U << 14) 96 #define NFS_ATTR_FATTR_PREMTIME (1U << 15) 97 #define NFS_ATTR_FATTR_PRECTIME (1U << 16) 98 #define NFS_ATTR_FATTR_CHANGE (1U << 17) 99 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 100 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) 101 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) 102 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) 103 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) 104 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) 105 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) 106 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) 107 108 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 109 | NFS_ATTR_FATTR_MODE \ 110 | NFS_ATTR_FATTR_NLINK \ 111 | NFS_ATTR_FATTR_OWNER \ 112 | NFS_ATTR_FATTR_GROUP \ 113 | NFS_ATTR_FATTR_RDEV \ 114 | NFS_ATTR_FATTR_SIZE \ 115 | NFS_ATTR_FATTR_FSID \ 116 | NFS_ATTR_FATTR_FILEID \ 117 | NFS_ATTR_FATTR_ATIME \ 118 | NFS_ATTR_FATTR_MTIME \ 119 | NFS_ATTR_FATTR_CTIME \ 120 | NFS_ATTR_FATTR_CHANGE) 121 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 122 | NFS_ATTR_FATTR_BLOCKS_USED) 123 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 124 | NFS_ATTR_FATTR_SPACE_USED) 125 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 126 | NFS_ATTR_FATTR_SPACE_USED \ 127 | NFS_ATTR_FATTR_V4_SECURITY_LABEL) 128 129 /* 130 * Maximal number of supported layout drivers. 131 */ 132 #define NFS_MAX_LAYOUT_TYPES 8 133 134 /* 135 * Info on the file system 136 */ 137 struct nfs_fsinfo { 138 struct nfs_fattr *fattr; /* Post-op attributes */ 139 __u32 rtmax; /* max. read transfer size */ 140 __u32 rtpref; /* pref. read transfer size */ 141 __u32 rtmult; /* reads should be multiple of this */ 142 __u32 wtmax; /* max. write transfer size */ 143 __u32 wtpref; /* pref. write transfer size */ 144 __u32 wtmult; /* writes should be multiple of this */ 145 __u32 dtpref; /* pref. readdir transfer size */ 146 __u64 maxfilesize; 147 struct timespec64 time_delta; /* server time granularity */ 148 __u32 lease_time; /* in seconds */ 149 __u32 nlayouttypes; /* number of layouttypes */ 150 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 151 __u32 blksize; /* preferred pnfs io block size */ 152 __u32 clone_blksize; /* granularity of a CLONE operation */ 153 __u32 xattr_support; /* User xattrs supported */ 154 }; 155 156 struct nfs_fsstat { 157 struct nfs_fattr *fattr; /* Post-op attributes */ 158 __u64 tbytes; /* total size in bytes */ 159 __u64 fbytes; /* # of free bytes */ 160 __u64 abytes; /* # of bytes available to user */ 161 __u64 tfiles; /* # of files */ 162 __u64 ffiles; /* # of free files */ 163 __u64 afiles; /* # of files available to user */ 164 }; 165 166 struct nfs2_fsstat { 167 __u32 tsize; /* Server transfer size */ 168 __u32 bsize; /* Filesystem block size */ 169 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 170 __u32 bfree; /* No. of free "bsize" blocks */ 171 __u32 bavail; /* No. of available "bsize" blocks */ 172 }; 173 174 struct nfs_pathconf { 175 struct nfs_fattr *fattr; /* Post-op attributes */ 176 __u32 max_link; /* max # of hard links */ 177 __u32 max_namelen; /* max name length */ 178 }; 179 180 struct nfs4_change_info { 181 u32 atomic; 182 u64 before; 183 u64 after; 184 }; 185 186 struct nfs_seqid; 187 188 /* nfs41 sessions channel attributes */ 189 struct nfs4_channel_attrs { 190 u32 max_rqst_sz; 191 u32 max_resp_sz; 192 u32 max_resp_sz_cached; 193 u32 max_ops; 194 u32 max_reqs; 195 }; 196 197 struct nfs4_slot; 198 struct nfs4_sequence_args { 199 struct nfs4_slot *sa_slot; 200 u8 sa_cache_this : 1, 201 sa_privileged : 1; 202 }; 203 204 struct nfs4_sequence_res { 205 struct nfs4_slot *sr_slot; /* slot used to send request */ 206 unsigned long sr_timestamp; 207 int sr_status; /* sequence operation status */ 208 u32 sr_status_flags; 209 u32 sr_highest_slotid; 210 u32 sr_target_highest_slotid; 211 }; 212 213 struct nfs4_get_lease_time_args { 214 struct nfs4_sequence_args la_seq_args; 215 }; 216 217 struct nfs4_get_lease_time_res { 218 struct nfs4_sequence_res lr_seq_res; 219 struct nfs_fsinfo *lr_fsinfo; 220 }; 221 222 struct xdr_stream; 223 struct nfs4_xdr_opaque_data; 224 225 struct nfs4_xdr_opaque_ops { 226 void (*encode)(struct xdr_stream *, const void *args, 227 const struct nfs4_xdr_opaque_data *); 228 void (*free)(struct nfs4_xdr_opaque_data *); 229 }; 230 231 struct nfs4_xdr_opaque_data { 232 const struct nfs4_xdr_opaque_ops *ops; 233 void *data; 234 }; 235 236 #define PNFS_LAYOUT_MAXSIZE 4096 237 238 struct nfs4_layoutdriver_data { 239 struct page **pages; 240 __u32 pglen; 241 __u32 len; 242 }; 243 244 struct pnfs_layout_range { 245 u32 iomode; 246 u64 offset; 247 u64 length; 248 }; 249 250 struct nfs4_layoutget_args { 251 struct nfs4_sequence_args seq_args; 252 __u32 type; 253 struct pnfs_layout_range range; 254 __u64 minlength; 255 __u32 maxcount; 256 struct inode *inode; 257 struct nfs_open_context *ctx; 258 nfs4_stateid stateid; 259 struct nfs4_layoutdriver_data layout; 260 }; 261 262 struct nfs4_layoutget_res { 263 struct nfs4_sequence_res seq_res; 264 int status; 265 __u32 return_on_close; 266 struct pnfs_layout_range range; 267 __u32 type; 268 nfs4_stateid stateid; 269 struct nfs4_layoutdriver_data *layoutp; 270 }; 271 272 struct nfs4_layoutget { 273 struct nfs4_layoutget_args args; 274 struct nfs4_layoutget_res res; 275 const struct cred *cred; 276 gfp_t gfp_flags; 277 }; 278 279 struct nfs4_getdeviceinfo_args { 280 struct nfs4_sequence_args seq_args; 281 struct pnfs_device *pdev; 282 __u32 notify_types; 283 }; 284 285 struct nfs4_getdeviceinfo_res { 286 struct nfs4_sequence_res seq_res; 287 struct pnfs_device *pdev; 288 __u32 notification; 289 }; 290 291 struct nfs4_layoutcommit_args { 292 struct nfs4_sequence_args seq_args; 293 nfs4_stateid stateid; 294 __u64 lastbytewritten; 295 struct inode *inode; 296 const u32 *bitmask; 297 size_t layoutupdate_len; 298 struct page *layoutupdate_page; 299 struct page **layoutupdate_pages; 300 __be32 *start_p; 301 }; 302 303 struct nfs4_layoutcommit_res { 304 struct nfs4_sequence_res seq_res; 305 struct nfs_fattr *fattr; 306 const struct nfs_server *server; 307 int status; 308 }; 309 310 struct nfs4_layoutcommit_data { 311 struct rpc_task task; 312 struct nfs_fattr fattr; 313 struct list_head lseg_list; 314 const struct cred *cred; 315 struct inode *inode; 316 struct nfs4_layoutcommit_args args; 317 struct nfs4_layoutcommit_res res; 318 }; 319 320 struct nfs4_layoutreturn_args { 321 struct nfs4_sequence_args seq_args; 322 struct pnfs_layout_hdr *layout; 323 struct inode *inode; 324 struct pnfs_layout_range range; 325 nfs4_stateid stateid; 326 __u32 layout_type; 327 struct nfs4_xdr_opaque_data *ld_private; 328 }; 329 330 struct nfs4_layoutreturn_res { 331 struct nfs4_sequence_res seq_res; 332 u32 lrs_present; 333 nfs4_stateid stateid; 334 }; 335 336 struct nfs4_layoutreturn { 337 struct nfs4_layoutreturn_args args; 338 struct nfs4_layoutreturn_res res; 339 const struct cred *cred; 340 struct nfs_client *clp; 341 struct inode *inode; 342 int rpc_status; 343 struct nfs4_xdr_opaque_data ld_private; 344 }; 345 346 #define PNFS_LAYOUTSTATS_MAXSIZE 256 347 348 struct nfs42_layoutstat_args; 349 struct nfs42_layoutstat_devinfo; 350 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 351 struct nfs42_layoutstat_args *, 352 struct nfs42_layoutstat_devinfo *); 353 354 /* Per file per deviceid layoutstats */ 355 struct nfs42_layoutstat_devinfo { 356 struct nfs4_deviceid dev_id; 357 __u64 offset; 358 __u64 length; 359 __u64 read_count; 360 __u64 read_bytes; 361 __u64 write_count; 362 __u64 write_bytes; 363 __u32 layout_type; 364 struct nfs4_xdr_opaque_data ld_private; 365 }; 366 367 struct nfs42_layoutstat_args { 368 struct nfs4_sequence_args seq_args; 369 struct nfs_fh *fh; 370 struct inode *inode; 371 nfs4_stateid stateid; 372 int num_dev; 373 struct nfs42_layoutstat_devinfo *devinfo; 374 }; 375 376 struct nfs42_layoutstat_res { 377 struct nfs4_sequence_res seq_res; 378 int num_dev; 379 int rpc_status; 380 }; 381 382 struct nfs42_layoutstat_data { 383 struct inode *inode; 384 struct nfs42_layoutstat_args args; 385 struct nfs42_layoutstat_res res; 386 }; 387 388 struct nfs42_device_error { 389 struct nfs4_deviceid dev_id; 390 int status; 391 enum nfs_opnum4 opnum; 392 }; 393 394 struct nfs42_layout_error { 395 __u64 offset; 396 __u64 length; 397 nfs4_stateid stateid; 398 struct nfs42_device_error errors[1]; 399 }; 400 401 #define NFS42_LAYOUTERROR_MAX 5 402 403 struct nfs42_layouterror_args { 404 struct nfs4_sequence_args seq_args; 405 struct inode *inode; 406 unsigned int num_errors; 407 struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX]; 408 }; 409 410 struct nfs42_layouterror_res { 411 struct nfs4_sequence_res seq_res; 412 unsigned int num_errors; 413 int rpc_status; 414 }; 415 416 struct nfs42_layouterror_data { 417 struct nfs42_layouterror_args args; 418 struct nfs42_layouterror_res res; 419 struct inode *inode; 420 struct pnfs_layout_segment *lseg; 421 }; 422 423 struct nfs42_clone_args { 424 struct nfs4_sequence_args seq_args; 425 struct nfs_fh *src_fh; 426 struct nfs_fh *dst_fh; 427 nfs4_stateid src_stateid; 428 nfs4_stateid dst_stateid; 429 __u64 src_offset; 430 __u64 dst_offset; 431 __u64 count; 432 const u32 *dst_bitmask; 433 }; 434 435 struct nfs42_clone_res { 436 struct nfs4_sequence_res seq_res; 437 unsigned int rpc_status; 438 struct nfs_fattr *dst_fattr; 439 const struct nfs_server *server; 440 }; 441 442 struct stateowner_id { 443 __u64 create_time; 444 __u32 uniquifier; 445 }; 446 447 /* 448 * Arguments to the open call. 449 */ 450 struct nfs_openargs { 451 struct nfs4_sequence_args seq_args; 452 const struct nfs_fh * fh; 453 struct nfs_seqid * seqid; 454 int open_flags; 455 fmode_t fmode; 456 u32 share_access; 457 u32 access; 458 __u64 clientid; 459 struct stateowner_id id; 460 union { 461 struct { 462 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 463 nfs4_verifier verifier; /* EXCLUSIVE */ 464 }; 465 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 466 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 467 } u; 468 const struct qstr * name; 469 const struct nfs_server *server; /* Needed for ID mapping */ 470 const u32 * bitmask; 471 const u32 * open_bitmap; 472 enum open_claim_type4 claim; 473 enum createmode4 createmode; 474 const struct nfs4_label *label; 475 umode_t umask; 476 struct nfs4_layoutget_args *lg_args; 477 }; 478 479 struct nfs_openres { 480 struct nfs4_sequence_res seq_res; 481 nfs4_stateid stateid; 482 struct nfs_fh fh; 483 struct nfs4_change_info cinfo; 484 __u32 rflags; 485 struct nfs_fattr * f_attr; 486 struct nfs4_label *f_label; 487 struct nfs_seqid * seqid; 488 const struct nfs_server *server; 489 fmode_t delegation_type; 490 nfs4_stateid delegation; 491 unsigned long pagemod_limit; 492 __u32 do_recall; 493 __u32 attrset[NFS4_BITMAP_SIZE]; 494 struct nfs4_string *owner; 495 struct nfs4_string *group_owner; 496 __u32 access_request; 497 __u32 access_supported; 498 __u32 access_result; 499 struct nfs4_layoutget_res *lg_res; 500 }; 501 502 /* 503 * Arguments to the open_confirm call. 504 */ 505 struct nfs_open_confirmargs { 506 struct nfs4_sequence_args seq_args; 507 const struct nfs_fh * fh; 508 nfs4_stateid * stateid; 509 struct nfs_seqid * seqid; 510 }; 511 512 struct nfs_open_confirmres { 513 struct nfs4_sequence_res seq_res; 514 nfs4_stateid stateid; 515 struct nfs_seqid * seqid; 516 }; 517 518 /* 519 * Arguments to the close call. 520 */ 521 struct nfs_closeargs { 522 struct nfs4_sequence_args seq_args; 523 struct nfs_fh * fh; 524 nfs4_stateid stateid; 525 struct nfs_seqid * seqid; 526 fmode_t fmode; 527 u32 share_access; 528 u32 * bitmask; 529 struct nfs4_layoutreturn_args *lr_args; 530 }; 531 532 struct nfs_closeres { 533 struct nfs4_sequence_res seq_res; 534 nfs4_stateid stateid; 535 struct nfs_fattr * fattr; 536 struct nfs_seqid * seqid; 537 const struct nfs_server *server; 538 struct nfs4_layoutreturn_res *lr_res; 539 int lr_ret; 540 }; 541 /* 542 * * Arguments to the lock,lockt, and locku call. 543 * */ 544 struct nfs_lowner { 545 __u64 clientid; 546 __u64 id; 547 dev_t s_dev; 548 }; 549 550 struct nfs_lock_args { 551 struct nfs4_sequence_args seq_args; 552 struct nfs_fh * fh; 553 struct file_lock * fl; 554 struct nfs_seqid * lock_seqid; 555 nfs4_stateid lock_stateid; 556 struct nfs_seqid * open_seqid; 557 nfs4_stateid open_stateid; 558 struct nfs_lowner lock_owner; 559 unsigned char block : 1; 560 unsigned char reclaim : 1; 561 unsigned char new_lock : 1; 562 unsigned char new_lock_owner : 1; 563 }; 564 565 struct nfs_lock_res { 566 struct nfs4_sequence_res seq_res; 567 nfs4_stateid stateid; 568 struct nfs_seqid * lock_seqid; 569 struct nfs_seqid * open_seqid; 570 }; 571 572 struct nfs_locku_args { 573 struct nfs4_sequence_args seq_args; 574 struct nfs_fh * fh; 575 struct file_lock * fl; 576 struct nfs_seqid * seqid; 577 nfs4_stateid stateid; 578 }; 579 580 struct nfs_locku_res { 581 struct nfs4_sequence_res seq_res; 582 nfs4_stateid stateid; 583 struct nfs_seqid * seqid; 584 }; 585 586 struct nfs_lockt_args { 587 struct nfs4_sequence_args seq_args; 588 struct nfs_fh * fh; 589 struct file_lock * fl; 590 struct nfs_lowner lock_owner; 591 }; 592 593 struct nfs_lockt_res { 594 struct nfs4_sequence_res seq_res; 595 struct file_lock * denied; /* LOCK, LOCKT failed */ 596 }; 597 598 struct nfs_release_lockowner_args { 599 struct nfs4_sequence_args seq_args; 600 struct nfs_lowner lock_owner; 601 }; 602 603 struct nfs_release_lockowner_res { 604 struct nfs4_sequence_res seq_res; 605 }; 606 607 struct nfs4_delegreturnargs { 608 struct nfs4_sequence_args seq_args; 609 const struct nfs_fh *fhandle; 610 const nfs4_stateid *stateid; 611 u32 * bitmask; 612 struct nfs4_layoutreturn_args *lr_args; 613 }; 614 615 struct nfs4_delegreturnres { 616 struct nfs4_sequence_res seq_res; 617 struct nfs_fattr * fattr; 618 struct nfs_server *server; 619 struct nfs4_layoutreturn_res *lr_res; 620 int lr_ret; 621 }; 622 623 /* 624 * Arguments to the write call. 625 */ 626 struct nfs_write_verifier { 627 char data[8]; 628 }; 629 630 struct nfs_writeverf { 631 struct nfs_write_verifier verifier; 632 enum nfs3_stable_how committed; 633 }; 634 635 /* 636 * Arguments shared by the read and write call. 637 */ 638 struct nfs_pgio_args { 639 struct nfs4_sequence_args seq_args; 640 struct nfs_fh * fh; 641 struct nfs_open_context *context; 642 struct nfs_lock_context *lock_context; 643 nfs4_stateid stateid; 644 __u64 offset; 645 __u32 count; 646 unsigned int pgbase; 647 struct page ** pages; 648 union { 649 unsigned int replen; /* used by read */ 650 struct { 651 u32 * bitmask; /* used by write */ 652 enum nfs3_stable_how stable; /* used by write */ 653 }; 654 }; 655 }; 656 657 struct nfs_pgio_res { 658 struct nfs4_sequence_res seq_res; 659 struct nfs_fattr * fattr; 660 __u64 count; 661 __u32 op_status; 662 union { 663 struct { 664 unsigned int replen; /* used by read */ 665 int eof; /* used by read */ 666 }; 667 struct { 668 struct nfs_writeverf * verf; /* used by write */ 669 const struct nfs_server *server; /* used by write */ 670 }; 671 }; 672 }; 673 674 /* 675 * Arguments to the commit call. 676 */ 677 struct nfs_commitargs { 678 struct nfs4_sequence_args seq_args; 679 struct nfs_fh *fh; 680 __u64 offset; 681 __u32 count; 682 const u32 *bitmask; 683 }; 684 685 struct nfs_commitres { 686 struct nfs4_sequence_res seq_res; 687 __u32 op_status; 688 struct nfs_fattr *fattr; 689 struct nfs_writeverf *verf; 690 const struct nfs_server *server; 691 }; 692 693 /* 694 * Common arguments to the unlink call 695 */ 696 struct nfs_removeargs { 697 struct nfs4_sequence_args seq_args; 698 const struct nfs_fh *fh; 699 struct qstr name; 700 }; 701 702 struct nfs_removeres { 703 struct nfs4_sequence_res seq_res; 704 struct nfs_server *server; 705 struct nfs_fattr *dir_attr; 706 struct nfs4_change_info cinfo; 707 }; 708 709 /* 710 * Common arguments to the rename call 711 */ 712 struct nfs_renameargs { 713 struct nfs4_sequence_args seq_args; 714 const struct nfs_fh *old_dir; 715 const struct nfs_fh *new_dir; 716 const struct qstr *old_name; 717 const struct qstr *new_name; 718 }; 719 720 struct nfs_renameres { 721 struct nfs4_sequence_res seq_res; 722 struct nfs_server *server; 723 struct nfs4_change_info old_cinfo; 724 struct nfs_fattr *old_fattr; 725 struct nfs4_change_info new_cinfo; 726 struct nfs_fattr *new_fattr; 727 }; 728 729 /* parsed sec= options */ 730 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 731 struct nfs_auth_info { 732 unsigned int flavor_len; 733 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 734 }; 735 736 /* 737 * Argument struct for decode_entry function 738 */ 739 struct nfs_entry { 740 __u64 ino; 741 __u64 cookie, 742 prev_cookie; 743 const char * name; 744 unsigned int len; 745 int eof; 746 struct nfs_fh * fh; 747 struct nfs_fattr * fattr; 748 struct nfs4_label *label; 749 unsigned char d_type; 750 struct nfs_server * server; 751 }; 752 753 /* 754 * The following types are for NFSv2 only. 755 */ 756 struct nfs_sattrargs { 757 struct nfs_fh * fh; 758 struct iattr * sattr; 759 }; 760 761 struct nfs_diropargs { 762 struct nfs_fh * fh; 763 const char * name; 764 unsigned int len; 765 }; 766 767 struct nfs_createargs { 768 struct nfs_fh * fh; 769 const char * name; 770 unsigned int len; 771 struct iattr * sattr; 772 }; 773 774 struct nfs_setattrargs { 775 struct nfs4_sequence_args seq_args; 776 struct nfs_fh * fh; 777 nfs4_stateid stateid; 778 struct iattr * iap; 779 const struct nfs_server * server; /* Needed for name mapping */ 780 const u32 * bitmask; 781 const struct nfs4_label *label; 782 }; 783 784 struct nfs_setaclargs { 785 struct nfs4_sequence_args seq_args; 786 struct nfs_fh * fh; 787 size_t acl_len; 788 struct page ** acl_pages; 789 }; 790 791 struct nfs_setaclres { 792 struct nfs4_sequence_res seq_res; 793 }; 794 795 struct nfs_getaclargs { 796 struct nfs4_sequence_args seq_args; 797 struct nfs_fh * fh; 798 size_t acl_len; 799 struct page ** acl_pages; 800 }; 801 802 /* getxattr ACL interface flags */ 803 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 804 struct nfs_getaclres { 805 struct nfs4_sequence_res seq_res; 806 size_t acl_len; 807 size_t acl_data_offset; 808 int acl_flags; 809 struct page * acl_scratch; 810 }; 811 812 struct nfs_setattrres { 813 struct nfs4_sequence_res seq_res; 814 struct nfs_fattr * fattr; 815 struct nfs4_label *label; 816 const struct nfs_server * server; 817 }; 818 819 struct nfs_linkargs { 820 struct nfs_fh * fromfh; 821 struct nfs_fh * tofh; 822 const char * toname; 823 unsigned int tolen; 824 }; 825 826 struct nfs_symlinkargs { 827 struct nfs_fh * fromfh; 828 const char * fromname; 829 unsigned int fromlen; 830 struct page ** pages; 831 unsigned int pathlen; 832 struct iattr * sattr; 833 }; 834 835 struct nfs_readdirargs { 836 struct nfs_fh * fh; 837 __u32 cookie; 838 unsigned int count; 839 struct page ** pages; 840 }; 841 842 struct nfs3_getaclargs { 843 struct nfs_fh * fh; 844 int mask; 845 struct page ** pages; 846 }; 847 848 struct nfs3_setaclargs { 849 struct inode * inode; 850 int mask; 851 struct posix_acl * acl_access; 852 struct posix_acl * acl_default; 853 size_t len; 854 unsigned int npages; 855 struct page ** pages; 856 }; 857 858 struct nfs_diropok { 859 struct nfs_fh * fh; 860 struct nfs_fattr * fattr; 861 }; 862 863 struct nfs_readlinkargs { 864 struct nfs_fh * fh; 865 unsigned int pgbase; 866 unsigned int pglen; 867 struct page ** pages; 868 }; 869 870 struct nfs3_sattrargs { 871 struct nfs_fh * fh; 872 struct iattr * sattr; 873 unsigned int guard; 874 struct timespec64 guardtime; 875 }; 876 877 struct nfs3_diropargs { 878 struct nfs_fh * fh; 879 const char * name; 880 unsigned int len; 881 }; 882 883 struct nfs3_accessargs { 884 struct nfs_fh * fh; 885 __u32 access; 886 }; 887 888 struct nfs3_createargs { 889 struct nfs_fh * fh; 890 const char * name; 891 unsigned int len; 892 struct iattr * sattr; 893 enum nfs3_createmode createmode; 894 __be32 verifier[2]; 895 }; 896 897 struct nfs3_mkdirargs { 898 struct nfs_fh * fh; 899 const char * name; 900 unsigned int len; 901 struct iattr * sattr; 902 }; 903 904 struct nfs3_symlinkargs { 905 struct nfs_fh * fromfh; 906 const char * fromname; 907 unsigned int fromlen; 908 struct page ** pages; 909 unsigned int pathlen; 910 struct iattr * sattr; 911 }; 912 913 struct nfs3_mknodargs { 914 struct nfs_fh * fh; 915 const char * name; 916 unsigned int len; 917 enum nfs3_ftype type; 918 struct iattr * sattr; 919 dev_t rdev; 920 }; 921 922 struct nfs3_linkargs { 923 struct nfs_fh * fromfh; 924 struct nfs_fh * tofh; 925 const char * toname; 926 unsigned int tolen; 927 }; 928 929 struct nfs3_readdirargs { 930 struct nfs_fh * fh; 931 __u64 cookie; 932 __be32 verf[2]; 933 bool plus; 934 unsigned int count; 935 struct page ** pages; 936 }; 937 938 struct nfs3_diropres { 939 struct nfs_fattr * dir_attr; 940 struct nfs_fh * fh; 941 struct nfs_fattr * fattr; 942 }; 943 944 struct nfs3_accessres { 945 struct nfs_fattr * fattr; 946 __u32 access; 947 }; 948 949 struct nfs3_readlinkargs { 950 struct nfs_fh * fh; 951 unsigned int pgbase; 952 unsigned int pglen; 953 struct page ** pages; 954 }; 955 956 struct nfs3_linkres { 957 struct nfs_fattr * dir_attr; 958 struct nfs_fattr * fattr; 959 }; 960 961 struct nfs3_readdirres { 962 struct nfs_fattr * dir_attr; 963 __be32 * verf; 964 bool plus; 965 }; 966 967 struct nfs3_getaclres { 968 struct nfs_fattr * fattr; 969 int mask; 970 unsigned int acl_access_count; 971 unsigned int acl_default_count; 972 struct posix_acl * acl_access; 973 struct posix_acl * acl_default; 974 }; 975 976 #if IS_ENABLED(CONFIG_NFS_V4) 977 978 typedef u64 clientid4; 979 980 struct nfs4_accessargs { 981 struct nfs4_sequence_args seq_args; 982 const struct nfs_fh * fh; 983 const u32 * bitmask; 984 u32 access; 985 }; 986 987 struct nfs4_accessres { 988 struct nfs4_sequence_res seq_res; 989 const struct nfs_server * server; 990 struct nfs_fattr * fattr; 991 u32 supported; 992 u32 access; 993 }; 994 995 struct nfs4_create_arg { 996 struct nfs4_sequence_args seq_args; 997 u32 ftype; 998 union { 999 struct { 1000 struct page ** pages; 1001 unsigned int len; 1002 } symlink; /* NF4LNK */ 1003 struct { 1004 u32 specdata1; 1005 u32 specdata2; 1006 } device; /* NF4BLK, NF4CHR */ 1007 } u; 1008 const struct qstr * name; 1009 const struct nfs_server * server; 1010 const struct iattr * attrs; 1011 const struct nfs_fh * dir_fh; 1012 const u32 * bitmask; 1013 const struct nfs4_label *label; 1014 umode_t umask; 1015 }; 1016 1017 struct nfs4_create_res { 1018 struct nfs4_sequence_res seq_res; 1019 const struct nfs_server * server; 1020 struct nfs_fh * fh; 1021 struct nfs_fattr * fattr; 1022 struct nfs4_label *label; 1023 struct nfs4_change_info dir_cinfo; 1024 }; 1025 1026 struct nfs4_fsinfo_arg { 1027 struct nfs4_sequence_args seq_args; 1028 const struct nfs_fh * fh; 1029 const u32 * bitmask; 1030 }; 1031 1032 struct nfs4_fsinfo_res { 1033 struct nfs4_sequence_res seq_res; 1034 struct nfs_fsinfo *fsinfo; 1035 }; 1036 1037 struct nfs4_getattr_arg { 1038 struct nfs4_sequence_args seq_args; 1039 const struct nfs_fh * fh; 1040 const u32 * bitmask; 1041 }; 1042 1043 struct nfs4_getattr_res { 1044 struct nfs4_sequence_res seq_res; 1045 const struct nfs_server * server; 1046 struct nfs_fattr * fattr; 1047 struct nfs4_label *label; 1048 }; 1049 1050 struct nfs4_link_arg { 1051 struct nfs4_sequence_args seq_args; 1052 const struct nfs_fh * fh; 1053 const struct nfs_fh * dir_fh; 1054 const struct qstr * name; 1055 const u32 * bitmask; 1056 }; 1057 1058 struct nfs4_link_res { 1059 struct nfs4_sequence_res seq_res; 1060 const struct nfs_server * server; 1061 struct nfs_fattr * fattr; 1062 struct nfs4_label *label; 1063 struct nfs4_change_info cinfo; 1064 struct nfs_fattr * dir_attr; 1065 }; 1066 1067 struct nfs4_lookup_arg { 1068 struct nfs4_sequence_args seq_args; 1069 const struct nfs_fh * dir_fh; 1070 const struct qstr * name; 1071 const u32 * bitmask; 1072 }; 1073 1074 struct nfs4_lookup_res { 1075 struct nfs4_sequence_res seq_res; 1076 const struct nfs_server * server; 1077 struct nfs_fattr * fattr; 1078 struct nfs_fh * fh; 1079 struct nfs4_label *label; 1080 }; 1081 1082 struct nfs4_lookupp_arg { 1083 struct nfs4_sequence_args seq_args; 1084 const struct nfs_fh *fh; 1085 const u32 *bitmask; 1086 }; 1087 1088 struct nfs4_lookupp_res { 1089 struct nfs4_sequence_res seq_res; 1090 const struct nfs_server *server; 1091 struct nfs_fattr *fattr; 1092 struct nfs_fh *fh; 1093 struct nfs4_label *label; 1094 }; 1095 1096 struct nfs4_lookup_root_arg { 1097 struct nfs4_sequence_args seq_args; 1098 const u32 * bitmask; 1099 }; 1100 1101 struct nfs4_pathconf_arg { 1102 struct nfs4_sequence_args seq_args; 1103 const struct nfs_fh * fh; 1104 const u32 * bitmask; 1105 }; 1106 1107 struct nfs4_pathconf_res { 1108 struct nfs4_sequence_res seq_res; 1109 struct nfs_pathconf *pathconf; 1110 }; 1111 1112 struct nfs4_readdir_arg { 1113 struct nfs4_sequence_args seq_args; 1114 const struct nfs_fh * fh; 1115 u64 cookie; 1116 nfs4_verifier verifier; 1117 u32 count; 1118 struct page ** pages; /* zero-copy data */ 1119 unsigned int pgbase; /* zero-copy data */ 1120 const u32 * bitmask; 1121 bool plus; 1122 }; 1123 1124 struct nfs4_readdir_res { 1125 struct nfs4_sequence_res seq_res; 1126 nfs4_verifier verifier; 1127 unsigned int pgbase; 1128 }; 1129 1130 struct nfs4_readlink { 1131 struct nfs4_sequence_args seq_args; 1132 const struct nfs_fh * fh; 1133 unsigned int pgbase; 1134 unsigned int pglen; /* zero-copy data */ 1135 struct page ** pages; /* zero-copy data */ 1136 }; 1137 1138 struct nfs4_readlink_res { 1139 struct nfs4_sequence_res seq_res; 1140 }; 1141 1142 struct nfs4_setclientid { 1143 const nfs4_verifier * sc_verifier; 1144 u32 sc_prog; 1145 unsigned int sc_netid_len; 1146 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1147 unsigned int sc_uaddr_len; 1148 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1149 struct nfs_client *sc_clnt; 1150 struct rpc_cred *sc_cred; 1151 }; 1152 1153 struct nfs4_setclientid_res { 1154 u64 clientid; 1155 nfs4_verifier confirm; 1156 }; 1157 1158 struct nfs4_statfs_arg { 1159 struct nfs4_sequence_args seq_args; 1160 const struct nfs_fh * fh; 1161 const u32 * bitmask; 1162 }; 1163 1164 struct nfs4_statfs_res { 1165 struct nfs4_sequence_res seq_res; 1166 struct nfs_fsstat *fsstat; 1167 }; 1168 1169 struct nfs4_server_caps_arg { 1170 struct nfs4_sequence_args seq_args; 1171 struct nfs_fh *fhandle; 1172 const u32 * bitmask; 1173 }; 1174 1175 struct nfs4_server_caps_res { 1176 struct nfs4_sequence_res seq_res; 1177 u32 attr_bitmask[3]; 1178 u32 exclcreat_bitmask[3]; 1179 u32 acl_bitmask; 1180 u32 has_links; 1181 u32 has_symlinks; 1182 u32 fh_expire_type; 1183 }; 1184 1185 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1186 struct nfs4_pathname { 1187 unsigned int ncomponents; 1188 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1189 }; 1190 1191 #define NFS4_FS_LOCATION_MAXSERVERS 10 1192 struct nfs4_fs_location { 1193 unsigned int nservers; 1194 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1195 struct nfs4_pathname rootpath; 1196 }; 1197 1198 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1199 struct nfs4_fs_locations { 1200 struct nfs_fattr fattr; 1201 const struct nfs_server *server; 1202 struct nfs4_pathname fs_path; 1203 int nlocations; 1204 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1205 }; 1206 1207 struct nfs4_fs_locations_arg { 1208 struct nfs4_sequence_args seq_args; 1209 const struct nfs_fh *dir_fh; 1210 const struct nfs_fh *fh; 1211 const struct qstr *name; 1212 struct page *page; 1213 const u32 *bitmask; 1214 clientid4 clientid; 1215 unsigned char migration:1, renew:1; 1216 }; 1217 1218 struct nfs4_fs_locations_res { 1219 struct nfs4_sequence_res seq_res; 1220 struct nfs4_fs_locations *fs_locations; 1221 unsigned char migration:1, renew:1; 1222 }; 1223 1224 struct nfs4_secinfo4 { 1225 u32 flavor; 1226 struct rpcsec_gss_info flavor_info; 1227 }; 1228 1229 struct nfs4_secinfo_flavors { 1230 unsigned int num_flavors; 1231 struct nfs4_secinfo4 flavors[]; 1232 }; 1233 1234 struct nfs4_secinfo_arg { 1235 struct nfs4_sequence_args seq_args; 1236 const struct nfs_fh *dir_fh; 1237 const struct qstr *name; 1238 }; 1239 1240 struct nfs4_secinfo_res { 1241 struct nfs4_sequence_res seq_res; 1242 struct nfs4_secinfo_flavors *flavors; 1243 }; 1244 1245 struct nfs4_fsid_present_arg { 1246 struct nfs4_sequence_args seq_args; 1247 const struct nfs_fh *fh; 1248 clientid4 clientid; 1249 unsigned char renew:1; 1250 }; 1251 1252 struct nfs4_fsid_present_res { 1253 struct nfs4_sequence_res seq_res; 1254 struct nfs_fh *fh; 1255 unsigned char renew:1; 1256 }; 1257 1258 #endif /* CONFIG_NFS_V4 */ 1259 1260 struct nfstime4 { 1261 u64 seconds; 1262 u32 nseconds; 1263 }; 1264 1265 #ifdef CONFIG_NFS_V4_1 1266 1267 struct pnfs_commit_bucket { 1268 struct list_head written; 1269 struct list_head committing; 1270 struct pnfs_layout_segment *lseg; 1271 struct nfs_writeverf direct_verf; 1272 }; 1273 1274 struct pnfs_commit_array { 1275 struct list_head cinfo_list; 1276 struct list_head lseg_list; 1277 struct pnfs_layout_segment *lseg; 1278 struct rcu_head rcu; 1279 refcount_t refcount; 1280 unsigned int nbuckets; 1281 struct pnfs_commit_bucket buckets[]; 1282 }; 1283 1284 struct pnfs_ds_commit_info { 1285 struct list_head commits; 1286 unsigned int nwritten; 1287 unsigned int ncommitting; 1288 const struct pnfs_commit_ops *ops; 1289 }; 1290 1291 struct nfs41_state_protection { 1292 u32 how; 1293 struct nfs4_op_map enforce; 1294 struct nfs4_op_map allow; 1295 }; 1296 1297 struct nfs41_exchange_id_args { 1298 struct nfs_client *client; 1299 nfs4_verifier verifier; 1300 u32 flags; 1301 struct nfs41_state_protection state_protect; 1302 }; 1303 1304 struct nfs41_server_owner { 1305 uint64_t minor_id; 1306 uint32_t major_id_sz; 1307 char major_id[NFS4_OPAQUE_LIMIT]; 1308 }; 1309 1310 struct nfs41_server_scope { 1311 uint32_t server_scope_sz; 1312 char server_scope[NFS4_OPAQUE_LIMIT]; 1313 }; 1314 1315 struct nfs41_impl_id { 1316 char domain[NFS4_OPAQUE_LIMIT + 1]; 1317 char name[NFS4_OPAQUE_LIMIT + 1]; 1318 struct nfstime4 date; 1319 }; 1320 1321 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1322 struct nfs41_bind_conn_to_session_args { 1323 struct nfs_client *client; 1324 struct nfs4_sessionid sessionid; 1325 u32 dir; 1326 bool use_conn_in_rdma_mode; 1327 int retries; 1328 }; 1329 1330 struct nfs41_bind_conn_to_session_res { 1331 struct nfs4_sessionid sessionid; 1332 u32 dir; 1333 bool use_conn_in_rdma_mode; 1334 }; 1335 1336 struct nfs41_exchange_id_res { 1337 u64 clientid; 1338 u32 seqid; 1339 u32 flags; 1340 struct nfs41_server_owner *server_owner; 1341 struct nfs41_server_scope *server_scope; 1342 struct nfs41_impl_id *impl_id; 1343 struct nfs41_state_protection state_protect; 1344 }; 1345 1346 struct nfs41_create_session_args { 1347 struct nfs_client *client; 1348 u64 clientid; 1349 uint32_t seqid; 1350 uint32_t flags; 1351 uint32_t cb_program; 1352 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1353 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1354 }; 1355 1356 struct nfs41_create_session_res { 1357 struct nfs4_sessionid sessionid; 1358 uint32_t seqid; 1359 uint32_t flags; 1360 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1361 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1362 }; 1363 1364 struct nfs41_reclaim_complete_args { 1365 struct nfs4_sequence_args seq_args; 1366 /* In the future extend to include curr_fh for use with migration */ 1367 unsigned char one_fs:1; 1368 }; 1369 1370 struct nfs41_reclaim_complete_res { 1371 struct nfs4_sequence_res seq_res; 1372 }; 1373 1374 #define SECINFO_STYLE_CURRENT_FH 0 1375 #define SECINFO_STYLE_PARENT 1 1376 struct nfs41_secinfo_no_name_args { 1377 struct nfs4_sequence_args seq_args; 1378 int style; 1379 }; 1380 1381 struct nfs41_test_stateid_args { 1382 struct nfs4_sequence_args seq_args; 1383 nfs4_stateid *stateid; 1384 }; 1385 1386 struct nfs41_test_stateid_res { 1387 struct nfs4_sequence_res seq_res; 1388 unsigned int status; 1389 }; 1390 1391 struct nfs41_free_stateid_args { 1392 struct nfs4_sequence_args seq_args; 1393 nfs4_stateid stateid; 1394 }; 1395 1396 struct nfs41_free_stateid_res { 1397 struct nfs4_sequence_res seq_res; 1398 unsigned int status; 1399 }; 1400 1401 #else 1402 1403 struct pnfs_ds_commit_info { 1404 }; 1405 1406 #endif /* CONFIG_NFS_V4_1 */ 1407 1408 #ifdef CONFIG_NFS_V4_2 1409 struct nfs42_falloc_args { 1410 struct nfs4_sequence_args seq_args; 1411 1412 struct nfs_fh *falloc_fh; 1413 nfs4_stateid falloc_stateid; 1414 u64 falloc_offset; 1415 u64 falloc_length; 1416 const u32 *falloc_bitmask; 1417 }; 1418 1419 struct nfs42_falloc_res { 1420 struct nfs4_sequence_res seq_res; 1421 unsigned int status; 1422 1423 struct nfs_fattr *falloc_fattr; 1424 const struct nfs_server *falloc_server; 1425 }; 1426 1427 struct nfs42_copy_args { 1428 struct nfs4_sequence_args seq_args; 1429 1430 struct nfs_fh *src_fh; 1431 nfs4_stateid src_stateid; 1432 u64 src_pos; 1433 1434 struct nfs_fh *dst_fh; 1435 nfs4_stateid dst_stateid; 1436 u64 dst_pos; 1437 1438 u64 count; 1439 bool sync; 1440 struct nl4_server *cp_src; 1441 }; 1442 1443 struct nfs42_write_res { 1444 nfs4_stateid stateid; 1445 u64 count; 1446 struct nfs_writeverf verifier; 1447 }; 1448 1449 struct nfs42_copy_res { 1450 struct nfs4_sequence_res seq_res; 1451 struct nfs42_write_res write_res; 1452 bool consecutive; 1453 bool synchronous; 1454 struct nfs_commitres commit_res; 1455 }; 1456 1457 struct nfs42_offload_status_args { 1458 struct nfs4_sequence_args osa_seq_args; 1459 struct nfs_fh *osa_src_fh; 1460 nfs4_stateid osa_stateid; 1461 }; 1462 1463 struct nfs42_offload_status_res { 1464 struct nfs4_sequence_res osr_seq_res; 1465 uint64_t osr_count; 1466 int osr_status; 1467 }; 1468 1469 struct nfs42_copy_notify_args { 1470 struct nfs4_sequence_args cna_seq_args; 1471 1472 struct nfs_fh *cna_src_fh; 1473 nfs4_stateid cna_src_stateid; 1474 struct nl4_server cna_dst; 1475 }; 1476 1477 struct nfs42_copy_notify_res { 1478 struct nfs4_sequence_res cnr_seq_res; 1479 1480 struct nfstime4 cnr_lease_time; 1481 nfs4_stateid cnr_stateid; 1482 struct nl4_server cnr_src; 1483 }; 1484 1485 struct nfs42_seek_args { 1486 struct nfs4_sequence_args seq_args; 1487 1488 struct nfs_fh *sa_fh; 1489 nfs4_stateid sa_stateid; 1490 u64 sa_offset; 1491 u32 sa_what; 1492 }; 1493 1494 struct nfs42_seek_res { 1495 struct nfs4_sequence_res seq_res; 1496 unsigned int status; 1497 1498 u32 sr_eof; 1499 u64 sr_offset; 1500 }; 1501 1502 struct nfs42_setxattrargs { 1503 struct nfs4_sequence_args seq_args; 1504 struct nfs_fh *fh; 1505 const char *xattr_name; 1506 u32 xattr_flags; 1507 size_t xattr_len; 1508 struct page **xattr_pages; 1509 }; 1510 1511 struct nfs42_setxattrres { 1512 struct nfs4_sequence_res seq_res; 1513 struct nfs4_change_info cinfo; 1514 }; 1515 1516 struct nfs42_getxattrargs { 1517 struct nfs4_sequence_args seq_args; 1518 struct nfs_fh *fh; 1519 const char *xattr_name; 1520 size_t xattr_len; 1521 struct page **xattr_pages; 1522 }; 1523 1524 struct nfs42_getxattrres { 1525 struct nfs4_sequence_res seq_res; 1526 size_t xattr_len; 1527 }; 1528 1529 struct nfs42_listxattrsargs { 1530 struct nfs4_sequence_args seq_args; 1531 struct nfs_fh *fh; 1532 u32 count; 1533 u64 cookie; 1534 struct page **xattr_pages; 1535 }; 1536 1537 struct nfs42_listxattrsres { 1538 struct nfs4_sequence_res seq_res; 1539 struct page *scratch; 1540 void *xattr_buf; 1541 size_t xattr_len; 1542 u64 cookie; 1543 bool eof; 1544 size_t copied; 1545 }; 1546 1547 struct nfs42_removexattrargs { 1548 struct nfs4_sequence_args seq_args; 1549 struct nfs_fh *fh; 1550 const char *xattr_name; 1551 }; 1552 1553 struct nfs42_removexattrres { 1554 struct nfs4_sequence_res seq_res; 1555 struct nfs4_change_info cinfo; 1556 }; 1557 1558 #endif /* CONFIG_NFS_V4_2 */ 1559 1560 struct nfs_page; 1561 1562 #define NFS_PAGEVEC_SIZE (8U) 1563 1564 struct nfs_page_array { 1565 struct page **pagevec; 1566 unsigned int npages; /* Max length of pagevec */ 1567 struct page *page_array[NFS_PAGEVEC_SIZE]; 1568 }; 1569 1570 /* used as flag bits in nfs_pgio_header */ 1571 enum { 1572 NFS_IOHDR_ERROR = 0, 1573 NFS_IOHDR_EOF, 1574 NFS_IOHDR_REDO, 1575 NFS_IOHDR_STAT, 1576 NFS_IOHDR_RESEND_PNFS, 1577 NFS_IOHDR_RESEND_MDS, 1578 }; 1579 1580 struct nfs_io_completion; 1581 struct nfs_pgio_header { 1582 struct inode *inode; 1583 const struct cred *cred; 1584 struct list_head pages; 1585 struct nfs_page *req; 1586 struct nfs_writeverf verf; /* Used for writes */ 1587 fmode_t rw_mode; 1588 struct pnfs_layout_segment *lseg; 1589 loff_t io_start; 1590 const struct rpc_call_ops *mds_ops; 1591 void (*release) (struct nfs_pgio_header *hdr); 1592 const struct nfs_pgio_completion_ops *completion_ops; 1593 const struct nfs_rw_ops *rw_ops; 1594 struct nfs_io_completion *io_completion; 1595 struct nfs_direct_req *dreq; 1596 1597 int pnfs_error; 1598 int error; /* merge with pnfs_error */ 1599 unsigned int good_bytes; /* boundary of good data */ 1600 unsigned long flags; 1601 1602 /* 1603 * rpc data 1604 */ 1605 struct rpc_task task; 1606 struct nfs_fattr fattr; 1607 struct nfs_pgio_args args; /* argument struct */ 1608 struct nfs_pgio_res res; /* result struct */ 1609 unsigned long timestamp; /* For lease renewal */ 1610 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1611 __u64 mds_offset; /* Filelayout dense stripe */ 1612 struct nfs_page_array page_array; 1613 struct nfs_client *ds_clp; /* pNFS data server */ 1614 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1615 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1616 }; 1617 1618 struct nfs_mds_commit_info { 1619 atomic_t rpcs_out; 1620 atomic_long_t ncommit; 1621 struct list_head list; 1622 }; 1623 1624 struct nfs_commit_info; 1625 struct nfs_commit_data; 1626 struct nfs_inode; 1627 struct nfs_commit_completion_ops { 1628 void (*completion) (struct nfs_commit_data *data); 1629 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1630 }; 1631 1632 struct nfs_commit_info { 1633 struct inode *inode; /* Needed for inode->i_lock */ 1634 struct nfs_mds_commit_info *mds; 1635 struct pnfs_ds_commit_info *ds; 1636 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1637 const struct nfs_commit_completion_ops *completion_ops; 1638 }; 1639 1640 struct nfs_commit_data { 1641 struct rpc_task task; 1642 struct inode *inode; 1643 const struct cred *cred; 1644 struct nfs_fattr fattr; 1645 struct nfs_writeverf verf; 1646 struct list_head pages; /* Coalesced requests we wish to flush */ 1647 struct list_head list; /* lists of struct nfs_write_data */ 1648 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1649 struct nfs_commitargs args; /* argument struct */ 1650 struct nfs_commitres res; /* result struct */ 1651 struct nfs_open_context *context; 1652 struct pnfs_layout_segment *lseg; 1653 struct nfs_client *ds_clp; /* pNFS data server */ 1654 int ds_commit_index; 1655 loff_t lwb; 1656 const struct rpc_call_ops *mds_ops; 1657 const struct nfs_commit_completion_ops *completion_ops; 1658 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1659 unsigned long flags; 1660 }; 1661 1662 struct nfs_pgio_completion_ops { 1663 void (*error_cleanup)(struct list_head *head, int); 1664 void (*init_hdr)(struct nfs_pgio_header *hdr); 1665 void (*completion)(struct nfs_pgio_header *hdr); 1666 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1667 }; 1668 1669 struct nfs_unlinkdata { 1670 struct nfs_removeargs args; 1671 struct nfs_removeres res; 1672 struct dentry *dentry; 1673 wait_queue_head_t wq; 1674 const struct cred *cred; 1675 struct nfs_fattr dir_attr; 1676 long timeout; 1677 }; 1678 1679 struct nfs_renamedata { 1680 struct nfs_renameargs args; 1681 struct nfs_renameres res; 1682 const struct cred *cred; 1683 struct inode *old_dir; 1684 struct dentry *old_dentry; 1685 struct nfs_fattr old_fattr; 1686 struct inode *new_dir; 1687 struct dentry *new_dentry; 1688 struct nfs_fattr new_fattr; 1689 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1690 long timeout; 1691 bool cancelled; 1692 }; 1693 1694 struct nfs_access_entry; 1695 struct nfs_client; 1696 struct rpc_timeout; 1697 struct nfs_subversion; 1698 struct nfs_mount_info; 1699 struct nfs_client_initdata; 1700 struct nfs_pageio_descriptor; 1701 struct fs_context; 1702 1703 /* 1704 * RPC procedure vector for NFSv2/NFSv3 demuxing 1705 */ 1706 struct nfs_rpc_ops { 1707 u32 version; /* Protocol version */ 1708 const struct dentry_operations *dentry_ops; 1709 const struct inode_operations *dir_inode_ops; 1710 const struct inode_operations *file_inode_ops; 1711 const struct file_operations *file_ops; 1712 const struct nlmclnt_operations *nlmclnt_ops; 1713 1714 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1715 struct nfs_fsinfo *); 1716 int (*submount) (struct fs_context *, struct nfs_server *); 1717 int (*try_get_tree) (struct fs_context *); 1718 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1719 struct nfs_fattr *, struct nfs4_label *, 1720 struct inode *); 1721 int (*setattr) (struct dentry *, struct nfs_fattr *, 1722 struct iattr *); 1723 int (*lookup) (struct inode *, struct dentry *, 1724 struct nfs_fh *, struct nfs_fattr *, 1725 struct nfs4_label *); 1726 int (*lookupp) (struct inode *, struct nfs_fh *, 1727 struct nfs_fattr *, struct nfs4_label *); 1728 int (*access) (struct inode *, struct nfs_access_entry *); 1729 int (*readlink)(struct inode *, struct page *, unsigned int, 1730 unsigned int); 1731 int (*create) (struct inode *, struct dentry *, 1732 struct iattr *, int); 1733 int (*remove) (struct inode *, struct dentry *); 1734 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1735 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1736 int (*unlink_done) (struct rpc_task *, struct inode *); 1737 void (*rename_setup) (struct rpc_message *msg, 1738 struct dentry *old_dentry, 1739 struct dentry *new_dentry); 1740 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1741 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1742 int (*link) (struct inode *, struct inode *, const struct qstr *); 1743 int (*symlink) (struct inode *, struct dentry *, struct page *, 1744 unsigned int, struct iattr *); 1745 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1746 int (*rmdir) (struct inode *, const struct qstr *); 1747 int (*readdir) (struct dentry *, const struct cred *, 1748 u64, struct page **, unsigned int, bool); 1749 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1750 dev_t); 1751 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1752 struct nfs_fsstat *); 1753 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1754 struct nfs_fsinfo *); 1755 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1756 struct nfs_pathconf *); 1757 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1758 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1759 int (*pgio_rpc_prepare)(struct rpc_task *, 1760 struct nfs_pgio_header *); 1761 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1762 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1763 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1764 struct rpc_clnt **); 1765 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1766 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1767 struct rpc_clnt **); 1768 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1769 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1770 int (*lock)(struct file *, int, struct file_lock *); 1771 int (*lock_check_bounds)(const struct file_lock *); 1772 void (*clear_acl_cache)(struct inode *); 1773 void (*close_context)(struct nfs_open_context *ctx, int); 1774 struct inode * (*open_context) (struct inode *dir, 1775 struct nfs_open_context *ctx, 1776 int open_flags, 1777 struct iattr *iattr, 1778 int *); 1779 int (*have_delegation)(struct inode *, fmode_t); 1780 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1781 struct nfs_client *(*init_client) (struct nfs_client *, 1782 const struct nfs_client_initdata *); 1783 void (*free_client) (struct nfs_client *); 1784 struct nfs_server *(*create_server)(struct fs_context *); 1785 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1786 struct nfs_fattr *, rpc_authflavor_t); 1787 }; 1788 1789 /* 1790 * NFS_CALL(getattr, inode, (fattr)); 1791 * into 1792 * NFS_PROTO(inode)->getattr(fattr); 1793 */ 1794 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1795 1796 /* 1797 * Function vectors etc. for the NFS client 1798 */ 1799 extern const struct nfs_rpc_ops nfs_v2_clientops; 1800 extern const struct nfs_rpc_ops nfs_v3_clientops; 1801 extern const struct nfs_rpc_ops nfs_v4_clientops; 1802 extern const struct rpc_version nfs_version2; 1803 extern const struct rpc_version nfs_version3; 1804 extern const struct rpc_version nfs_version4; 1805 1806 extern const struct rpc_version nfsacl_version3; 1807 extern const struct rpc_program nfsacl_program; 1808 1809 #endif 1810