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