1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_NFS_XDR_H 3 #define _LINUX_NFS_XDR_H 4 5 #include <linux/nfsacl.h> 6 #include <linux/sunrpc/gss_api.h> 7 8 /* 9 * To change the maximum rsize and wsize supported by the NFS client, adjust 10 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can 11 * support a megabyte or more. The default is left at 4096 bytes, which is 12 * reasonable for NFS over UDP. 13 */ 14 #define NFS_MAX_FILE_IO_SIZE (1048576U) 15 #define NFS_DEF_FILE_IO_SIZE (4096U) 16 #define NFS_MIN_FILE_IO_SIZE (1024U) 17 18 #define NFS_BITMASK_SZ 3 19 20 struct nfs4_string { 21 unsigned int len; 22 char *data; 23 }; 24 25 struct nfs_fsid { 26 uint64_t major; 27 uint64_t minor; 28 }; 29 30 /* 31 * Helper for checking equality between 2 fsids. 32 */ 33 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 34 { 35 return a->major == b->major && a->minor == b->minor; 36 } 37 38 struct nfs4_threshold { 39 __u32 bm; 40 __u32 l_type; 41 __u64 rd_sz; 42 __u64 wr_sz; 43 __u64 rd_io_sz; 44 __u64 wr_io_sz; 45 }; 46 47 struct nfs_fattr { 48 unsigned int valid; /* which fields are valid */ 49 umode_t mode; 50 __u32 nlink; 51 kuid_t uid; 52 kgid_t gid; 53 dev_t rdev; 54 __u64 size; 55 union { 56 struct { 57 __u32 blocksize; 58 __u32 blocks; 59 } nfs2; 60 struct { 61 __u64 used; 62 } nfs3; 63 } du; 64 struct nfs_fsid fsid; 65 __u64 fileid; 66 __u64 mounted_on_fileid; 67 struct timespec64 atime; 68 struct timespec64 mtime; 69 struct timespec64 ctime; 70 __u64 change_attr; /* NFSv4 change attribute */ 71 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 72 __u64 pre_size; /* pre_op_attr.size */ 73 struct timespec64 pre_mtime; /* pre_op_attr.mtime */ 74 struct timespec64 pre_ctime; /* pre_op_attr.ctime */ 75 unsigned long time_start; 76 unsigned long gencount; 77 struct nfs4_string *owner_name; 78 struct nfs4_string *group_name; 79 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */ 80 struct nfs4_label *label; 81 }; 82 83 #define NFS_ATTR_FATTR_TYPE (1U << 0) 84 #define NFS_ATTR_FATTR_MODE (1U << 1) 85 #define NFS_ATTR_FATTR_NLINK (1U << 2) 86 #define NFS_ATTR_FATTR_OWNER (1U << 3) 87 #define NFS_ATTR_FATTR_GROUP (1U << 4) 88 #define NFS_ATTR_FATTR_RDEV (1U << 5) 89 #define NFS_ATTR_FATTR_SIZE (1U << 6) 90 #define NFS_ATTR_FATTR_PRESIZE (1U << 7) 91 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 92 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 93 #define NFS_ATTR_FATTR_FSID (1U << 10) 94 #define NFS_ATTR_FATTR_FILEID (1U << 11) 95 #define NFS_ATTR_FATTR_ATIME (1U << 12) 96 #define NFS_ATTR_FATTR_MTIME (1U << 13) 97 #define NFS_ATTR_FATTR_CTIME (1U << 14) 98 #define NFS_ATTR_FATTR_PREMTIME (1U << 15) 99 #define NFS_ATTR_FATTR_PRECTIME (1U << 16) 100 #define NFS_ATTR_FATTR_CHANGE (1U << 17) 101 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 102 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) 103 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) 104 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) 105 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) 106 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) 107 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) 108 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) 109 110 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 111 | NFS_ATTR_FATTR_MODE \ 112 | NFS_ATTR_FATTR_NLINK \ 113 | NFS_ATTR_FATTR_OWNER \ 114 | NFS_ATTR_FATTR_GROUP \ 115 | NFS_ATTR_FATTR_RDEV \ 116 | NFS_ATTR_FATTR_SIZE \ 117 | NFS_ATTR_FATTR_FSID \ 118 | NFS_ATTR_FATTR_FILEID \ 119 | NFS_ATTR_FATTR_ATIME \ 120 | NFS_ATTR_FATTR_MTIME \ 121 | NFS_ATTR_FATTR_CTIME \ 122 | NFS_ATTR_FATTR_CHANGE) 123 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 124 | NFS_ATTR_FATTR_BLOCKS_USED) 125 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 126 | NFS_ATTR_FATTR_SPACE_USED) 127 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 128 | NFS_ATTR_FATTR_SPACE_USED \ 129 | NFS_ATTR_FATTR_V4_SECURITY_LABEL) 130 131 /* 132 * Maximal number of supported layout drivers. 133 */ 134 #define NFS_MAX_LAYOUT_TYPES 8 135 136 /* 137 * Info on the file system 138 */ 139 struct nfs_fsinfo { 140 struct nfs_fattr *fattr; /* Post-op attributes */ 141 __u32 rtmax; /* max. read transfer size */ 142 __u32 rtpref; /* pref. read transfer size */ 143 __u32 rtmult; /* reads should be multiple of this */ 144 __u32 wtmax; /* max. write transfer size */ 145 __u32 wtpref; /* pref. write transfer size */ 146 __u32 wtmult; /* writes should be multiple of this */ 147 __u32 dtpref; /* pref. readdir transfer size */ 148 __u64 maxfilesize; 149 struct timespec64 time_delta; /* server time granularity */ 150 __u32 lease_time; /* in seconds */ 151 __u32 nlayouttypes; /* number of layouttypes */ 152 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 153 __u32 blksize; /* preferred pnfs io block size */ 154 __u32 clone_blksize; /* granularity of a CLONE operation */ 155 enum nfs4_change_attr_type 156 change_attr_type; /* Info about change attr */ 157 __u32 xattr_support; /* User xattrs supported */ 158 }; 159 160 struct nfs_fsstat { 161 struct nfs_fattr *fattr; /* Post-op attributes */ 162 __u64 tbytes; /* total size in bytes */ 163 __u64 fbytes; /* # of free bytes */ 164 __u64 abytes; /* # of bytes available to user */ 165 __u64 tfiles; /* # of files */ 166 __u64 ffiles; /* # of free files */ 167 __u64 afiles; /* # of files available to user */ 168 }; 169 170 struct nfs2_fsstat { 171 __u32 tsize; /* Server transfer size */ 172 __u32 bsize; /* Filesystem block size */ 173 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 174 __u32 bfree; /* No. of free "bsize" blocks */ 175 __u32 bavail; /* No. of available "bsize" blocks */ 176 }; 177 178 struct nfs_pathconf { 179 struct nfs_fattr *fattr; /* Post-op attributes */ 180 __u32 max_link; /* max # of hard links */ 181 __u32 max_namelen; /* max name length */ 182 }; 183 184 struct nfs4_change_info { 185 u32 atomic; 186 u64 before; 187 u64 after; 188 }; 189 190 struct nfs_seqid; 191 192 /* nfs41 sessions channel attributes */ 193 struct nfs4_channel_attrs { 194 u32 max_rqst_sz; 195 u32 max_resp_sz; 196 u32 max_resp_sz_cached; 197 u32 max_ops; 198 u32 max_reqs; 199 }; 200 201 struct nfs4_slot; 202 struct nfs4_sequence_args { 203 struct nfs4_slot *sa_slot; 204 u8 sa_cache_this : 1, 205 sa_privileged : 1; 206 }; 207 208 struct nfs4_sequence_res { 209 struct nfs4_slot *sr_slot; /* slot used to send request */ 210 unsigned long sr_timestamp; 211 int sr_status; /* sequence operation status */ 212 u32 sr_status_flags; 213 u32 sr_highest_slotid; 214 u32 sr_target_highest_slotid; 215 }; 216 217 struct nfs4_get_lease_time_args { 218 struct nfs4_sequence_args la_seq_args; 219 }; 220 221 struct nfs4_get_lease_time_res { 222 struct nfs4_sequence_res lr_seq_res; 223 struct nfs_fsinfo *lr_fsinfo; 224 }; 225 226 struct xdr_stream; 227 struct nfs4_xdr_opaque_data; 228 229 struct nfs4_xdr_opaque_ops { 230 void (*encode)(struct xdr_stream *, const void *args, 231 const struct nfs4_xdr_opaque_data *); 232 void (*free)(struct nfs4_xdr_opaque_data *); 233 }; 234 235 struct nfs4_xdr_opaque_data { 236 const struct nfs4_xdr_opaque_ops *ops; 237 void *data; 238 }; 239 240 #define PNFS_LAYOUT_MAXSIZE 4096 241 242 struct nfs4_layoutdriver_data { 243 struct page **pages; 244 __u32 pglen; 245 __u32 len; 246 }; 247 248 struct pnfs_layout_range { 249 u32 iomode; 250 u64 offset; 251 u64 length; 252 }; 253 254 struct nfs4_layoutget_args { 255 struct nfs4_sequence_args seq_args; 256 __u32 type; 257 struct pnfs_layout_range range; 258 __u64 minlength; 259 __u32 maxcount; 260 struct inode *inode; 261 struct nfs_open_context *ctx; 262 nfs4_stateid stateid; 263 struct nfs4_layoutdriver_data layout; 264 }; 265 266 struct nfs4_layoutget_res { 267 struct nfs4_sequence_res seq_res; 268 int status; 269 __u32 return_on_close; 270 struct pnfs_layout_range range; 271 __u32 type; 272 nfs4_stateid stateid; 273 struct nfs4_layoutdriver_data *layoutp; 274 }; 275 276 struct nfs4_layoutget { 277 struct nfs4_layoutget_args args; 278 struct nfs4_layoutget_res res; 279 const struct cred *cred; 280 struct pnfs_layout_hdr *lo; 281 gfp_t gfp_flags; 282 }; 283 284 struct nfs4_getdeviceinfo_args { 285 struct nfs4_sequence_args seq_args; 286 struct pnfs_device *pdev; 287 __u32 notify_types; 288 }; 289 290 struct nfs4_getdeviceinfo_res { 291 struct nfs4_sequence_res seq_res; 292 struct pnfs_device *pdev; 293 __u32 notification; 294 }; 295 296 struct nfs4_layoutcommit_args { 297 struct nfs4_sequence_args seq_args; 298 nfs4_stateid stateid; 299 __u64 lastbytewritten; 300 struct inode *inode; 301 const u32 *bitmask; 302 size_t layoutupdate_len; 303 struct page *layoutupdate_page; 304 struct page **layoutupdate_pages; 305 __be32 *start_p; 306 }; 307 308 struct nfs4_layoutcommit_res { 309 struct nfs4_sequence_res seq_res; 310 struct nfs_fattr *fattr; 311 const struct nfs_server *server; 312 int status; 313 }; 314 315 struct nfs4_layoutcommit_data { 316 struct rpc_task task; 317 struct nfs_fattr fattr; 318 struct list_head lseg_list; 319 const struct cred *cred; 320 struct inode *inode; 321 struct nfs4_layoutcommit_args args; 322 struct nfs4_layoutcommit_res res; 323 }; 324 325 struct nfs4_layoutreturn_args { 326 struct nfs4_sequence_args seq_args; 327 struct pnfs_layout_hdr *layout; 328 struct inode *inode; 329 struct pnfs_layout_range range; 330 nfs4_stateid stateid; 331 __u32 layout_type; 332 struct nfs4_xdr_opaque_data *ld_private; 333 }; 334 335 struct nfs4_layoutreturn_res { 336 struct nfs4_sequence_res seq_res; 337 u32 lrs_present; 338 nfs4_stateid stateid; 339 }; 340 341 struct nfs4_layoutreturn { 342 struct nfs4_layoutreturn_args args; 343 struct nfs4_layoutreturn_res res; 344 const struct cred *cred; 345 struct nfs_client *clp; 346 struct inode *inode; 347 int rpc_status; 348 struct nfs4_xdr_opaque_data ld_private; 349 }; 350 351 #define PNFS_LAYOUTSTATS_MAXSIZE 256 352 353 struct nfs42_layoutstat_args; 354 struct nfs42_layoutstat_devinfo; 355 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 356 struct nfs42_layoutstat_args *, 357 struct nfs42_layoutstat_devinfo *); 358 359 /* Per file per deviceid layoutstats */ 360 struct nfs42_layoutstat_devinfo { 361 struct nfs4_deviceid dev_id; 362 __u64 offset; 363 __u64 length; 364 __u64 read_count; 365 __u64 read_bytes; 366 __u64 write_count; 367 __u64 write_bytes; 368 __u32 layout_type; 369 struct nfs4_xdr_opaque_data ld_private; 370 }; 371 372 struct nfs42_layoutstat_args { 373 struct nfs4_sequence_args seq_args; 374 struct nfs_fh *fh; 375 struct inode *inode; 376 nfs4_stateid stateid; 377 int num_dev; 378 struct nfs42_layoutstat_devinfo *devinfo; 379 }; 380 381 struct nfs42_layoutstat_res { 382 struct nfs4_sequence_res seq_res; 383 int num_dev; 384 int rpc_status; 385 }; 386 387 struct nfs42_layoutstat_data { 388 struct inode *inode; 389 struct nfs42_layoutstat_args args; 390 struct nfs42_layoutstat_res res; 391 }; 392 393 struct nfs42_device_error { 394 struct nfs4_deviceid dev_id; 395 int status; 396 enum nfs_opnum4 opnum; 397 }; 398 399 struct nfs42_layout_error { 400 __u64 offset; 401 __u64 length; 402 nfs4_stateid stateid; 403 struct nfs42_device_error errors[1]; 404 }; 405 406 #define NFS42_LAYOUTERROR_MAX 5 407 408 struct nfs42_layouterror_args { 409 struct nfs4_sequence_args seq_args; 410 struct inode *inode; 411 unsigned int num_errors; 412 struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX]; 413 }; 414 415 struct nfs42_layouterror_res { 416 struct nfs4_sequence_res seq_res; 417 unsigned int num_errors; 418 int rpc_status; 419 }; 420 421 struct nfs42_layouterror_data { 422 struct nfs42_layouterror_args args; 423 struct nfs42_layouterror_res res; 424 struct inode *inode; 425 struct pnfs_layout_segment *lseg; 426 }; 427 428 struct nfs42_clone_args { 429 struct nfs4_sequence_args seq_args; 430 struct nfs_fh *src_fh; 431 struct nfs_fh *dst_fh; 432 nfs4_stateid src_stateid; 433 nfs4_stateid dst_stateid; 434 __u64 src_offset; 435 __u64 dst_offset; 436 __u64 count; 437 const u32 *dst_bitmask; 438 }; 439 440 struct nfs42_clone_res { 441 struct nfs4_sequence_res seq_res; 442 unsigned int rpc_status; 443 struct nfs_fattr *dst_fattr; 444 const struct nfs_server *server; 445 }; 446 447 struct stateowner_id { 448 __u64 create_time; 449 __u32 uniquifier; 450 }; 451 452 /* 453 * Arguments to the open call. 454 */ 455 struct nfs_openargs { 456 struct nfs4_sequence_args seq_args; 457 const struct nfs_fh * fh; 458 struct nfs_seqid * seqid; 459 int open_flags; 460 fmode_t fmode; 461 u32 share_access; 462 u32 access; 463 __u64 clientid; 464 struct stateowner_id id; 465 union { 466 struct { 467 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 468 nfs4_verifier verifier; /* EXCLUSIVE */ 469 }; 470 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 471 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 472 } u; 473 const struct qstr * name; 474 const struct nfs_server *server; /* Needed for ID mapping */ 475 const u32 * bitmask; 476 const u32 * open_bitmap; 477 enum open_claim_type4 claim; 478 enum createmode4 createmode; 479 const struct nfs4_label *label; 480 umode_t umask; 481 struct nfs4_layoutget_args *lg_args; 482 }; 483 484 struct nfs_openres { 485 struct nfs4_sequence_res seq_res; 486 nfs4_stateid stateid; 487 struct nfs_fh fh; 488 struct nfs4_change_info cinfo; 489 __u32 rflags; 490 struct nfs_fattr * f_attr; 491 struct nfs4_label *f_label; 492 struct nfs_seqid * seqid; 493 const struct nfs_server *server; 494 fmode_t delegation_type; 495 nfs4_stateid delegation; 496 unsigned long pagemod_limit; 497 __u32 do_recall; 498 __u32 attrset[NFS4_BITMAP_SIZE]; 499 struct nfs4_string *owner; 500 struct nfs4_string *group_owner; 501 __u32 access_request; 502 __u32 access_supported; 503 __u32 access_result; 504 struct nfs4_layoutget_res *lg_res; 505 }; 506 507 /* 508 * Arguments to the open_confirm call. 509 */ 510 struct nfs_open_confirmargs { 511 struct nfs4_sequence_args seq_args; 512 const struct nfs_fh * fh; 513 nfs4_stateid * stateid; 514 struct nfs_seqid * seqid; 515 }; 516 517 struct nfs_open_confirmres { 518 struct nfs4_sequence_res seq_res; 519 nfs4_stateid stateid; 520 struct nfs_seqid * seqid; 521 }; 522 523 /* 524 * Arguments to the close call. 525 */ 526 struct nfs_closeargs { 527 struct nfs4_sequence_args seq_args; 528 struct nfs_fh * fh; 529 nfs4_stateid stateid; 530 struct nfs_seqid * seqid; 531 fmode_t fmode; 532 u32 share_access; 533 const u32 * bitmask; 534 u32 bitmask_store[NFS_BITMASK_SZ]; 535 struct nfs4_layoutreturn_args *lr_args; 536 }; 537 538 struct nfs_closeres { 539 struct nfs4_sequence_res seq_res; 540 nfs4_stateid stateid; 541 struct nfs_fattr * fattr; 542 struct nfs_seqid * seqid; 543 const struct nfs_server *server; 544 struct nfs4_layoutreturn_res *lr_res; 545 int lr_ret; 546 }; 547 /* 548 * * Arguments to the lock,lockt, and locku call. 549 * */ 550 struct nfs_lowner { 551 __u64 clientid; 552 __u64 id; 553 dev_t s_dev; 554 }; 555 556 struct nfs_lock_args { 557 struct nfs4_sequence_args seq_args; 558 struct nfs_fh * fh; 559 struct file_lock * fl; 560 struct nfs_seqid * lock_seqid; 561 nfs4_stateid lock_stateid; 562 struct nfs_seqid * open_seqid; 563 nfs4_stateid open_stateid; 564 struct nfs_lowner lock_owner; 565 unsigned char block : 1; 566 unsigned char reclaim : 1; 567 unsigned char new_lock : 1; 568 unsigned char new_lock_owner : 1; 569 }; 570 571 struct nfs_lock_res { 572 struct nfs4_sequence_res seq_res; 573 nfs4_stateid stateid; 574 struct nfs_seqid * lock_seqid; 575 struct nfs_seqid * open_seqid; 576 }; 577 578 struct nfs_locku_args { 579 struct nfs4_sequence_args seq_args; 580 struct nfs_fh * fh; 581 struct file_lock * fl; 582 struct nfs_seqid * seqid; 583 nfs4_stateid stateid; 584 }; 585 586 struct nfs_locku_res { 587 struct nfs4_sequence_res seq_res; 588 nfs4_stateid stateid; 589 struct nfs_seqid * seqid; 590 }; 591 592 struct nfs_lockt_args { 593 struct nfs4_sequence_args seq_args; 594 struct nfs_fh * fh; 595 struct file_lock * fl; 596 struct nfs_lowner lock_owner; 597 }; 598 599 struct nfs_lockt_res { 600 struct nfs4_sequence_res seq_res; 601 struct file_lock * denied; /* LOCK, LOCKT failed */ 602 }; 603 604 struct nfs_release_lockowner_args { 605 struct nfs4_sequence_args seq_args; 606 struct nfs_lowner lock_owner; 607 }; 608 609 struct nfs_release_lockowner_res { 610 struct nfs4_sequence_res seq_res; 611 }; 612 613 struct nfs4_delegreturnargs { 614 struct nfs4_sequence_args seq_args; 615 const struct nfs_fh *fhandle; 616 const nfs4_stateid *stateid; 617 const u32 *bitmask; 618 u32 bitmask_store[NFS_BITMASK_SZ]; 619 struct nfs4_layoutreturn_args *lr_args; 620 }; 621 622 struct nfs4_delegreturnres { 623 struct nfs4_sequence_res seq_res; 624 struct nfs_fattr * fattr; 625 struct nfs_server *server; 626 struct nfs4_layoutreturn_res *lr_res; 627 int lr_ret; 628 }; 629 630 /* 631 * Arguments to the write call. 632 */ 633 struct nfs_write_verifier { 634 char data[8]; 635 }; 636 637 struct nfs_writeverf { 638 struct nfs_write_verifier verifier; 639 enum nfs3_stable_how committed; 640 }; 641 642 /* 643 * Arguments shared by the read and write call. 644 */ 645 struct nfs_pgio_args { 646 struct nfs4_sequence_args seq_args; 647 struct nfs_fh * fh; 648 struct nfs_open_context *context; 649 struct nfs_lock_context *lock_context; 650 nfs4_stateid stateid; 651 __u64 offset; 652 __u32 count; 653 unsigned int pgbase; 654 struct page ** pages; 655 union { 656 unsigned int replen; /* used by read */ 657 struct { 658 const u32 * bitmask; /* used by write */ 659 u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */ 660 enum nfs3_stable_how stable; /* used by write */ 661 }; 662 }; 663 }; 664 665 struct nfs_pgio_res { 666 struct nfs4_sequence_res seq_res; 667 struct nfs_fattr * fattr; 668 __u64 count; 669 __u32 op_status; 670 union { 671 struct { 672 unsigned int replen; /* used by read */ 673 int eof; /* used by read */ 674 }; 675 struct { 676 struct nfs_writeverf * verf; /* used by write */ 677 const struct nfs_server *server; /* used by write */ 678 }; 679 }; 680 }; 681 682 /* 683 * Arguments to the commit call. 684 */ 685 struct nfs_commitargs { 686 struct nfs4_sequence_args seq_args; 687 struct nfs_fh *fh; 688 __u64 offset; 689 __u32 count; 690 const u32 *bitmask; 691 }; 692 693 struct nfs_commitres { 694 struct nfs4_sequence_res seq_res; 695 __u32 op_status; 696 struct nfs_fattr *fattr; 697 struct nfs_writeverf *verf; 698 const struct nfs_server *server; 699 }; 700 701 /* 702 * Common arguments to the unlink call 703 */ 704 struct nfs_removeargs { 705 struct nfs4_sequence_args seq_args; 706 const struct nfs_fh *fh; 707 struct qstr name; 708 }; 709 710 struct nfs_removeres { 711 struct nfs4_sequence_res seq_res; 712 struct nfs_server *server; 713 struct nfs_fattr *dir_attr; 714 struct nfs4_change_info cinfo; 715 }; 716 717 /* 718 * Common arguments to the rename call 719 */ 720 struct nfs_renameargs { 721 struct nfs4_sequence_args seq_args; 722 const struct nfs_fh *old_dir; 723 const struct nfs_fh *new_dir; 724 const struct qstr *old_name; 725 const struct qstr *new_name; 726 }; 727 728 struct nfs_renameres { 729 struct nfs4_sequence_res seq_res; 730 struct nfs_server *server; 731 struct nfs4_change_info old_cinfo; 732 struct nfs_fattr *old_fattr; 733 struct nfs4_change_info new_cinfo; 734 struct nfs_fattr *new_fattr; 735 }; 736 737 /* parsed sec= options */ 738 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 739 struct nfs_auth_info { 740 unsigned int flavor_len; 741 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 742 }; 743 744 /* 745 * Argument struct for decode_entry function 746 */ 747 struct nfs_entry { 748 __u64 ino; 749 __u64 cookie, 750 prev_cookie; 751 const char * name; 752 unsigned int len; 753 int eof; 754 struct nfs_fh * fh; 755 struct nfs_fattr * fattr; 756 struct nfs4_label *label; 757 unsigned char d_type; 758 struct nfs_server * server; 759 }; 760 761 struct nfs_readdir_arg { 762 struct dentry *dentry; 763 const struct cred *cred; 764 __be32 *verf; 765 u64 cookie; 766 struct page **pages; 767 unsigned int page_len; 768 bool plus; 769 }; 770 771 struct nfs_readdir_res { 772 __be32 *verf; 773 }; 774 775 /* 776 * The following types are for NFSv2 only. 777 */ 778 struct nfs_sattrargs { 779 struct nfs_fh * fh; 780 struct iattr * sattr; 781 }; 782 783 struct nfs_diropargs { 784 struct nfs_fh * fh; 785 const char * name; 786 unsigned int len; 787 }; 788 789 struct nfs_createargs { 790 struct nfs_fh * fh; 791 const char * name; 792 unsigned int len; 793 struct iattr * sattr; 794 }; 795 796 struct nfs_setattrargs { 797 struct nfs4_sequence_args seq_args; 798 struct nfs_fh * fh; 799 nfs4_stateid stateid; 800 struct iattr * iap; 801 const struct nfs_server * server; /* Needed for name mapping */ 802 const u32 * bitmask; 803 const struct nfs4_label *label; 804 }; 805 806 struct nfs_setaclargs { 807 struct nfs4_sequence_args seq_args; 808 struct nfs_fh * fh; 809 size_t acl_len; 810 struct page ** acl_pages; 811 }; 812 813 struct nfs_setaclres { 814 struct nfs4_sequence_res seq_res; 815 }; 816 817 struct nfs_getaclargs { 818 struct nfs4_sequence_args seq_args; 819 struct nfs_fh * fh; 820 size_t acl_len; 821 struct page ** acl_pages; 822 }; 823 824 /* getxattr ACL interface flags */ 825 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 826 struct nfs_getaclres { 827 struct nfs4_sequence_res seq_res; 828 size_t acl_len; 829 size_t acl_data_offset; 830 int acl_flags; 831 struct page * acl_scratch; 832 }; 833 834 struct nfs_setattrres { 835 struct nfs4_sequence_res seq_res; 836 struct nfs_fattr * fattr; 837 struct nfs4_label *label; 838 const struct nfs_server * server; 839 }; 840 841 struct nfs_linkargs { 842 struct nfs_fh * fromfh; 843 struct nfs_fh * tofh; 844 const char * toname; 845 unsigned int tolen; 846 }; 847 848 struct nfs_symlinkargs { 849 struct nfs_fh * fromfh; 850 const char * fromname; 851 unsigned int fromlen; 852 struct page ** pages; 853 unsigned int pathlen; 854 struct iattr * sattr; 855 }; 856 857 struct nfs_readdirargs { 858 struct nfs_fh * fh; 859 __u32 cookie; 860 unsigned int count; 861 struct page ** pages; 862 }; 863 864 struct nfs3_getaclargs { 865 struct nfs_fh * fh; 866 int mask; 867 struct page ** pages; 868 }; 869 870 struct nfs3_setaclargs { 871 struct inode * inode; 872 int mask; 873 struct posix_acl * acl_access; 874 struct posix_acl * acl_default; 875 size_t len; 876 unsigned int npages; 877 struct page ** pages; 878 }; 879 880 struct nfs_diropok { 881 struct nfs_fh * fh; 882 struct nfs_fattr * fattr; 883 }; 884 885 struct nfs_readlinkargs { 886 struct nfs_fh * fh; 887 unsigned int pgbase; 888 unsigned int pglen; 889 struct page ** pages; 890 }; 891 892 struct nfs3_sattrargs { 893 struct nfs_fh * fh; 894 struct iattr * sattr; 895 unsigned int guard; 896 struct timespec64 guardtime; 897 }; 898 899 struct nfs3_diropargs { 900 struct nfs_fh * fh; 901 const char * name; 902 unsigned int len; 903 }; 904 905 struct nfs3_accessargs { 906 struct nfs_fh * fh; 907 __u32 access; 908 }; 909 910 struct nfs3_createargs { 911 struct nfs_fh * fh; 912 const char * name; 913 unsigned int len; 914 struct iattr * sattr; 915 enum nfs3_createmode createmode; 916 __be32 verifier[2]; 917 }; 918 919 struct nfs3_mkdirargs { 920 struct nfs_fh * fh; 921 const char * name; 922 unsigned int len; 923 struct iattr * sattr; 924 }; 925 926 struct nfs3_symlinkargs { 927 struct nfs_fh * fromfh; 928 const char * fromname; 929 unsigned int fromlen; 930 struct page ** pages; 931 unsigned int pathlen; 932 struct iattr * sattr; 933 }; 934 935 struct nfs3_mknodargs { 936 struct nfs_fh * fh; 937 const char * name; 938 unsigned int len; 939 enum nfs3_ftype type; 940 struct iattr * sattr; 941 dev_t rdev; 942 }; 943 944 struct nfs3_linkargs { 945 struct nfs_fh * fromfh; 946 struct nfs_fh * tofh; 947 const char * toname; 948 unsigned int tolen; 949 }; 950 951 struct nfs3_readdirargs { 952 struct nfs_fh * fh; 953 __u64 cookie; 954 __be32 verf[2]; 955 bool plus; 956 unsigned int count; 957 struct page ** pages; 958 }; 959 960 struct nfs3_diropres { 961 struct nfs_fattr * dir_attr; 962 struct nfs_fh * fh; 963 struct nfs_fattr * fattr; 964 }; 965 966 struct nfs3_accessres { 967 struct nfs_fattr * fattr; 968 __u32 access; 969 }; 970 971 struct nfs3_readlinkargs { 972 struct nfs_fh * fh; 973 unsigned int pgbase; 974 unsigned int pglen; 975 struct page ** pages; 976 }; 977 978 struct nfs3_linkres { 979 struct nfs_fattr * dir_attr; 980 struct nfs_fattr * fattr; 981 }; 982 983 struct nfs3_readdirres { 984 struct nfs_fattr * dir_attr; 985 __be32 * verf; 986 bool plus; 987 }; 988 989 struct nfs3_getaclres { 990 struct nfs_fattr * fattr; 991 int mask; 992 unsigned int acl_access_count; 993 unsigned int acl_default_count; 994 struct posix_acl * acl_access; 995 struct posix_acl * acl_default; 996 }; 997 998 #if IS_ENABLED(CONFIG_NFS_V4) 999 1000 typedef u64 clientid4; 1001 1002 struct nfs4_accessargs { 1003 struct nfs4_sequence_args seq_args; 1004 const struct nfs_fh * fh; 1005 const u32 * bitmask; 1006 u32 access; 1007 }; 1008 1009 struct nfs4_accessres { 1010 struct nfs4_sequence_res seq_res; 1011 const struct nfs_server * server; 1012 struct nfs_fattr * fattr; 1013 u32 supported; 1014 u32 access; 1015 }; 1016 1017 struct nfs4_create_arg { 1018 struct nfs4_sequence_args seq_args; 1019 u32 ftype; 1020 union { 1021 struct { 1022 struct page ** pages; 1023 unsigned int len; 1024 } symlink; /* NF4LNK */ 1025 struct { 1026 u32 specdata1; 1027 u32 specdata2; 1028 } device; /* NF4BLK, NF4CHR */ 1029 } u; 1030 const struct qstr * name; 1031 const struct nfs_server * server; 1032 const struct iattr * attrs; 1033 const struct nfs_fh * dir_fh; 1034 const u32 * bitmask; 1035 const struct nfs4_label *label; 1036 umode_t umask; 1037 }; 1038 1039 struct nfs4_create_res { 1040 struct nfs4_sequence_res seq_res; 1041 const struct nfs_server * server; 1042 struct nfs_fh * fh; 1043 struct nfs_fattr * fattr; 1044 struct nfs4_label *label; 1045 struct nfs4_change_info dir_cinfo; 1046 }; 1047 1048 struct nfs4_fsinfo_arg { 1049 struct nfs4_sequence_args seq_args; 1050 const struct nfs_fh * fh; 1051 const u32 * bitmask; 1052 }; 1053 1054 struct nfs4_fsinfo_res { 1055 struct nfs4_sequence_res seq_res; 1056 struct nfs_fsinfo *fsinfo; 1057 }; 1058 1059 struct nfs4_getattr_arg { 1060 struct nfs4_sequence_args seq_args; 1061 const struct nfs_fh * fh; 1062 const u32 * bitmask; 1063 }; 1064 1065 struct nfs4_getattr_res { 1066 struct nfs4_sequence_res seq_res; 1067 const struct nfs_server * server; 1068 struct nfs_fattr * fattr; 1069 struct nfs4_label *label; 1070 }; 1071 1072 struct nfs4_link_arg { 1073 struct nfs4_sequence_args seq_args; 1074 const struct nfs_fh * fh; 1075 const struct nfs_fh * dir_fh; 1076 const struct qstr * name; 1077 const u32 * bitmask; 1078 }; 1079 1080 struct nfs4_link_res { 1081 struct nfs4_sequence_res seq_res; 1082 const struct nfs_server * server; 1083 struct nfs_fattr * fattr; 1084 struct nfs4_label *label; 1085 struct nfs4_change_info cinfo; 1086 struct nfs_fattr * dir_attr; 1087 }; 1088 1089 struct nfs4_lookup_arg { 1090 struct nfs4_sequence_args seq_args; 1091 const struct nfs_fh * dir_fh; 1092 const struct qstr * name; 1093 const u32 * bitmask; 1094 }; 1095 1096 struct nfs4_lookup_res { 1097 struct nfs4_sequence_res seq_res; 1098 const struct nfs_server * server; 1099 struct nfs_fattr * fattr; 1100 struct nfs_fh * fh; 1101 struct nfs4_label *label; 1102 }; 1103 1104 struct nfs4_lookupp_arg { 1105 struct nfs4_sequence_args seq_args; 1106 const struct nfs_fh *fh; 1107 const u32 *bitmask; 1108 }; 1109 1110 struct nfs4_lookupp_res { 1111 struct nfs4_sequence_res seq_res; 1112 const struct nfs_server *server; 1113 struct nfs_fattr *fattr; 1114 struct nfs_fh *fh; 1115 struct nfs4_label *label; 1116 }; 1117 1118 struct nfs4_lookup_root_arg { 1119 struct nfs4_sequence_args seq_args; 1120 const u32 * bitmask; 1121 }; 1122 1123 struct nfs4_pathconf_arg { 1124 struct nfs4_sequence_args seq_args; 1125 const struct nfs_fh * fh; 1126 const u32 * bitmask; 1127 }; 1128 1129 struct nfs4_pathconf_res { 1130 struct nfs4_sequence_res seq_res; 1131 struct nfs_pathconf *pathconf; 1132 }; 1133 1134 struct nfs4_readdir_arg { 1135 struct nfs4_sequence_args seq_args; 1136 const struct nfs_fh * fh; 1137 u64 cookie; 1138 nfs4_verifier verifier; 1139 u32 count; 1140 struct page ** pages; /* zero-copy data */ 1141 unsigned int pgbase; /* zero-copy data */ 1142 const u32 * bitmask; 1143 bool plus; 1144 }; 1145 1146 struct nfs4_readdir_res { 1147 struct nfs4_sequence_res seq_res; 1148 nfs4_verifier verifier; 1149 unsigned int pgbase; 1150 }; 1151 1152 struct nfs4_readlink { 1153 struct nfs4_sequence_args seq_args; 1154 const struct nfs_fh * fh; 1155 unsigned int pgbase; 1156 unsigned int pglen; /* zero-copy data */ 1157 struct page ** pages; /* zero-copy data */ 1158 }; 1159 1160 struct nfs4_readlink_res { 1161 struct nfs4_sequence_res seq_res; 1162 }; 1163 1164 struct nfs4_setclientid { 1165 const nfs4_verifier * sc_verifier; 1166 u32 sc_prog; 1167 unsigned int sc_netid_len; 1168 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1169 unsigned int sc_uaddr_len; 1170 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1171 struct nfs_client *sc_clnt; 1172 struct rpc_cred *sc_cred; 1173 }; 1174 1175 struct nfs4_setclientid_res { 1176 u64 clientid; 1177 nfs4_verifier confirm; 1178 }; 1179 1180 struct nfs4_statfs_arg { 1181 struct nfs4_sequence_args seq_args; 1182 const struct nfs_fh * fh; 1183 const u32 * bitmask; 1184 }; 1185 1186 struct nfs4_statfs_res { 1187 struct nfs4_sequence_res seq_res; 1188 struct nfs_fsstat *fsstat; 1189 }; 1190 1191 struct nfs4_server_caps_arg { 1192 struct nfs4_sequence_args seq_args; 1193 struct nfs_fh *fhandle; 1194 const u32 * bitmask; 1195 }; 1196 1197 struct nfs4_server_caps_res { 1198 struct nfs4_sequence_res seq_res; 1199 u32 attr_bitmask[3]; 1200 u32 exclcreat_bitmask[3]; 1201 u32 acl_bitmask; 1202 u32 has_links; 1203 u32 has_symlinks; 1204 u32 fh_expire_type; 1205 }; 1206 1207 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1208 struct nfs4_pathname { 1209 unsigned int ncomponents; 1210 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1211 }; 1212 1213 #define NFS4_FS_LOCATION_MAXSERVERS 10 1214 struct nfs4_fs_location { 1215 unsigned int nservers; 1216 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1217 struct nfs4_pathname rootpath; 1218 }; 1219 1220 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1221 struct nfs4_fs_locations { 1222 struct nfs_fattr fattr; 1223 const struct nfs_server *server; 1224 struct nfs4_pathname fs_path; 1225 int nlocations; 1226 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1227 }; 1228 1229 struct nfs4_fs_locations_arg { 1230 struct nfs4_sequence_args seq_args; 1231 const struct nfs_fh *dir_fh; 1232 const struct nfs_fh *fh; 1233 const struct qstr *name; 1234 struct page *page; 1235 const u32 *bitmask; 1236 clientid4 clientid; 1237 unsigned char migration:1, renew:1; 1238 }; 1239 1240 struct nfs4_fs_locations_res { 1241 struct nfs4_sequence_res seq_res; 1242 struct nfs4_fs_locations *fs_locations; 1243 unsigned char migration:1, renew:1; 1244 }; 1245 1246 struct nfs4_secinfo4 { 1247 u32 flavor; 1248 struct rpcsec_gss_info flavor_info; 1249 }; 1250 1251 struct nfs4_secinfo_flavors { 1252 unsigned int num_flavors; 1253 struct nfs4_secinfo4 flavors[]; 1254 }; 1255 1256 struct nfs4_secinfo_arg { 1257 struct nfs4_sequence_args seq_args; 1258 const struct nfs_fh *dir_fh; 1259 const struct qstr *name; 1260 }; 1261 1262 struct nfs4_secinfo_res { 1263 struct nfs4_sequence_res seq_res; 1264 struct nfs4_secinfo_flavors *flavors; 1265 }; 1266 1267 struct nfs4_fsid_present_arg { 1268 struct nfs4_sequence_args seq_args; 1269 const struct nfs_fh *fh; 1270 clientid4 clientid; 1271 unsigned char renew:1; 1272 }; 1273 1274 struct nfs4_fsid_present_res { 1275 struct nfs4_sequence_res seq_res; 1276 struct nfs_fh *fh; 1277 unsigned char renew:1; 1278 }; 1279 1280 #endif /* CONFIG_NFS_V4 */ 1281 1282 struct nfstime4 { 1283 u64 seconds; 1284 u32 nseconds; 1285 }; 1286 1287 #ifdef CONFIG_NFS_V4_1 1288 1289 struct pnfs_commit_bucket { 1290 struct list_head written; 1291 struct list_head committing; 1292 struct pnfs_layout_segment *lseg; 1293 struct nfs_writeverf direct_verf; 1294 }; 1295 1296 struct pnfs_commit_array { 1297 struct list_head cinfo_list; 1298 struct list_head lseg_list; 1299 struct pnfs_layout_segment *lseg; 1300 struct rcu_head rcu; 1301 refcount_t refcount; 1302 unsigned int nbuckets; 1303 struct pnfs_commit_bucket buckets[]; 1304 }; 1305 1306 struct pnfs_ds_commit_info { 1307 struct list_head commits; 1308 unsigned int nwritten; 1309 unsigned int ncommitting; 1310 const struct pnfs_commit_ops *ops; 1311 }; 1312 1313 struct nfs41_state_protection { 1314 u32 how; 1315 struct nfs4_op_map enforce; 1316 struct nfs4_op_map allow; 1317 }; 1318 1319 struct nfs41_exchange_id_args { 1320 struct nfs_client *client; 1321 nfs4_verifier verifier; 1322 u32 flags; 1323 struct nfs41_state_protection state_protect; 1324 }; 1325 1326 struct nfs41_server_owner { 1327 uint64_t minor_id; 1328 uint32_t major_id_sz; 1329 char major_id[NFS4_OPAQUE_LIMIT]; 1330 }; 1331 1332 struct nfs41_server_scope { 1333 uint32_t server_scope_sz; 1334 char server_scope[NFS4_OPAQUE_LIMIT]; 1335 }; 1336 1337 struct nfs41_impl_id { 1338 char domain[NFS4_OPAQUE_LIMIT + 1]; 1339 char name[NFS4_OPAQUE_LIMIT + 1]; 1340 struct nfstime4 date; 1341 }; 1342 1343 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1344 struct nfs41_bind_conn_to_session_args { 1345 struct nfs_client *client; 1346 struct nfs4_sessionid sessionid; 1347 u32 dir; 1348 bool use_conn_in_rdma_mode; 1349 int retries; 1350 }; 1351 1352 struct nfs41_bind_conn_to_session_res { 1353 struct nfs4_sessionid sessionid; 1354 u32 dir; 1355 bool use_conn_in_rdma_mode; 1356 }; 1357 1358 struct nfs41_exchange_id_res { 1359 u64 clientid; 1360 u32 seqid; 1361 u32 flags; 1362 struct nfs41_server_owner *server_owner; 1363 struct nfs41_server_scope *server_scope; 1364 struct nfs41_impl_id *impl_id; 1365 struct nfs41_state_protection state_protect; 1366 }; 1367 1368 struct nfs41_create_session_args { 1369 struct nfs_client *client; 1370 u64 clientid; 1371 uint32_t seqid; 1372 uint32_t flags; 1373 uint32_t cb_program; 1374 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1375 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1376 }; 1377 1378 struct nfs41_create_session_res { 1379 struct nfs4_sessionid sessionid; 1380 uint32_t seqid; 1381 uint32_t flags; 1382 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1383 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1384 }; 1385 1386 struct nfs41_reclaim_complete_args { 1387 struct nfs4_sequence_args seq_args; 1388 /* In the future extend to include curr_fh for use with migration */ 1389 unsigned char one_fs:1; 1390 }; 1391 1392 struct nfs41_reclaim_complete_res { 1393 struct nfs4_sequence_res seq_res; 1394 }; 1395 1396 #define SECINFO_STYLE_CURRENT_FH 0 1397 #define SECINFO_STYLE_PARENT 1 1398 struct nfs41_secinfo_no_name_args { 1399 struct nfs4_sequence_args seq_args; 1400 int style; 1401 }; 1402 1403 struct nfs41_test_stateid_args { 1404 struct nfs4_sequence_args seq_args; 1405 nfs4_stateid *stateid; 1406 }; 1407 1408 struct nfs41_test_stateid_res { 1409 struct nfs4_sequence_res seq_res; 1410 unsigned int status; 1411 }; 1412 1413 struct nfs41_free_stateid_args { 1414 struct nfs4_sequence_args seq_args; 1415 nfs4_stateid stateid; 1416 }; 1417 1418 struct nfs41_free_stateid_res { 1419 struct nfs4_sequence_res seq_res; 1420 unsigned int status; 1421 }; 1422 1423 #else 1424 1425 struct pnfs_ds_commit_info { 1426 }; 1427 1428 #endif /* CONFIG_NFS_V4_1 */ 1429 1430 #ifdef CONFIG_NFS_V4_2 1431 struct nfs42_falloc_args { 1432 struct nfs4_sequence_args seq_args; 1433 1434 struct nfs_fh *falloc_fh; 1435 nfs4_stateid falloc_stateid; 1436 u64 falloc_offset; 1437 u64 falloc_length; 1438 const u32 *falloc_bitmask; 1439 }; 1440 1441 struct nfs42_falloc_res { 1442 struct nfs4_sequence_res seq_res; 1443 unsigned int status; 1444 1445 struct nfs_fattr *falloc_fattr; 1446 const struct nfs_server *falloc_server; 1447 }; 1448 1449 struct nfs42_copy_args { 1450 struct nfs4_sequence_args seq_args; 1451 1452 struct nfs_fh *src_fh; 1453 nfs4_stateid src_stateid; 1454 u64 src_pos; 1455 1456 struct nfs_fh *dst_fh; 1457 nfs4_stateid dst_stateid; 1458 u64 dst_pos; 1459 1460 u64 count; 1461 bool sync; 1462 struct nl4_server *cp_src; 1463 }; 1464 1465 struct nfs42_write_res { 1466 nfs4_stateid stateid; 1467 u64 count; 1468 struct nfs_writeverf verifier; 1469 }; 1470 1471 struct nfs42_copy_res { 1472 struct nfs4_sequence_res seq_res; 1473 struct nfs42_write_res write_res; 1474 bool consecutive; 1475 bool synchronous; 1476 struct nfs_commitres commit_res; 1477 }; 1478 1479 struct nfs42_offload_status_args { 1480 struct nfs4_sequence_args osa_seq_args; 1481 struct nfs_fh *osa_src_fh; 1482 nfs4_stateid osa_stateid; 1483 }; 1484 1485 struct nfs42_offload_status_res { 1486 struct nfs4_sequence_res osr_seq_res; 1487 uint64_t osr_count; 1488 int osr_status; 1489 }; 1490 1491 struct nfs42_copy_notify_args { 1492 struct nfs4_sequence_args cna_seq_args; 1493 1494 struct nfs_fh *cna_src_fh; 1495 nfs4_stateid cna_src_stateid; 1496 struct nl4_server cna_dst; 1497 }; 1498 1499 struct nfs42_copy_notify_res { 1500 struct nfs4_sequence_res cnr_seq_res; 1501 1502 struct nfstime4 cnr_lease_time; 1503 nfs4_stateid cnr_stateid; 1504 struct nl4_server cnr_src; 1505 }; 1506 1507 struct nfs42_seek_args { 1508 struct nfs4_sequence_args seq_args; 1509 1510 struct nfs_fh *sa_fh; 1511 nfs4_stateid sa_stateid; 1512 u64 sa_offset; 1513 u32 sa_what; 1514 }; 1515 1516 struct nfs42_seek_res { 1517 struct nfs4_sequence_res seq_res; 1518 unsigned int status; 1519 1520 u32 sr_eof; 1521 u64 sr_offset; 1522 }; 1523 1524 struct nfs42_setxattrargs { 1525 struct nfs4_sequence_args seq_args; 1526 struct nfs_fh *fh; 1527 const char *xattr_name; 1528 u32 xattr_flags; 1529 size_t xattr_len; 1530 struct page **xattr_pages; 1531 }; 1532 1533 struct nfs42_setxattrres { 1534 struct nfs4_sequence_res seq_res; 1535 struct nfs4_change_info cinfo; 1536 }; 1537 1538 struct nfs42_getxattrargs { 1539 struct nfs4_sequence_args seq_args; 1540 struct nfs_fh *fh; 1541 const char *xattr_name; 1542 size_t xattr_len; 1543 struct page **xattr_pages; 1544 }; 1545 1546 struct nfs42_getxattrres { 1547 struct nfs4_sequence_res seq_res; 1548 size_t xattr_len; 1549 }; 1550 1551 struct nfs42_listxattrsargs { 1552 struct nfs4_sequence_args seq_args; 1553 struct nfs_fh *fh; 1554 u32 count; 1555 u64 cookie; 1556 struct page **xattr_pages; 1557 }; 1558 1559 struct nfs42_listxattrsres { 1560 struct nfs4_sequence_res seq_res; 1561 struct page *scratch; 1562 void *xattr_buf; 1563 size_t xattr_len; 1564 u64 cookie; 1565 bool eof; 1566 size_t copied; 1567 }; 1568 1569 struct nfs42_removexattrargs { 1570 struct nfs4_sequence_args seq_args; 1571 struct nfs_fh *fh; 1572 const char *xattr_name; 1573 }; 1574 1575 struct nfs42_removexattrres { 1576 struct nfs4_sequence_res seq_res; 1577 struct nfs4_change_info cinfo; 1578 }; 1579 1580 #endif /* CONFIG_NFS_V4_2 */ 1581 1582 struct nfs_page; 1583 1584 #define NFS_PAGEVEC_SIZE (8U) 1585 1586 struct nfs_page_array { 1587 struct page **pagevec; 1588 unsigned int npages; /* Max length of pagevec */ 1589 struct page *page_array[NFS_PAGEVEC_SIZE]; 1590 }; 1591 1592 /* used as flag bits in nfs_pgio_header */ 1593 enum { 1594 NFS_IOHDR_ERROR = 0, 1595 NFS_IOHDR_EOF, 1596 NFS_IOHDR_REDO, 1597 NFS_IOHDR_STAT, 1598 NFS_IOHDR_RESEND_PNFS, 1599 NFS_IOHDR_RESEND_MDS, 1600 }; 1601 1602 struct nfs_io_completion; 1603 struct nfs_pgio_header { 1604 struct inode *inode; 1605 const struct cred *cred; 1606 struct list_head pages; 1607 struct nfs_page *req; 1608 struct nfs_writeverf verf; /* Used for writes */ 1609 fmode_t rw_mode; 1610 struct pnfs_layout_segment *lseg; 1611 loff_t io_start; 1612 const struct rpc_call_ops *mds_ops; 1613 void (*release) (struct nfs_pgio_header *hdr); 1614 const struct nfs_pgio_completion_ops *completion_ops; 1615 const struct nfs_rw_ops *rw_ops; 1616 struct nfs_io_completion *io_completion; 1617 struct nfs_direct_req *dreq; 1618 1619 int pnfs_error; 1620 int error; /* merge with pnfs_error */ 1621 unsigned int good_bytes; /* boundary of good data */ 1622 unsigned long flags; 1623 1624 /* 1625 * rpc data 1626 */ 1627 struct rpc_task task; 1628 struct nfs_fattr fattr; 1629 struct nfs_pgio_args args; /* argument struct */ 1630 struct nfs_pgio_res res; /* result struct */ 1631 unsigned long timestamp; /* For lease renewal */ 1632 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1633 __u64 mds_offset; /* Filelayout dense stripe */ 1634 struct nfs_page_array page_array; 1635 struct nfs_client *ds_clp; /* pNFS data server */ 1636 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1637 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1638 }; 1639 1640 struct nfs_mds_commit_info { 1641 atomic_t rpcs_out; 1642 atomic_long_t ncommit; 1643 struct list_head list; 1644 }; 1645 1646 struct nfs_commit_info; 1647 struct nfs_commit_data; 1648 struct nfs_inode; 1649 struct nfs_commit_completion_ops { 1650 void (*completion) (struct nfs_commit_data *data); 1651 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1652 }; 1653 1654 struct nfs_commit_info { 1655 struct inode *inode; /* Needed for inode->i_lock */ 1656 struct nfs_mds_commit_info *mds; 1657 struct pnfs_ds_commit_info *ds; 1658 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1659 const struct nfs_commit_completion_ops *completion_ops; 1660 }; 1661 1662 struct nfs_commit_data { 1663 struct rpc_task task; 1664 struct inode *inode; 1665 const struct cred *cred; 1666 struct nfs_fattr fattr; 1667 struct nfs_writeverf verf; 1668 struct list_head pages; /* Coalesced requests we wish to flush */ 1669 struct list_head list; /* lists of struct nfs_write_data */ 1670 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1671 struct nfs_commitargs args; /* argument struct */ 1672 struct nfs_commitres res; /* result struct */ 1673 struct nfs_open_context *context; 1674 struct pnfs_layout_segment *lseg; 1675 struct nfs_client *ds_clp; /* pNFS data server */ 1676 int ds_commit_index; 1677 loff_t lwb; 1678 const struct rpc_call_ops *mds_ops; 1679 const struct nfs_commit_completion_ops *completion_ops; 1680 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1681 unsigned long flags; 1682 }; 1683 1684 struct nfs_pgio_completion_ops { 1685 void (*error_cleanup)(struct list_head *head, int); 1686 void (*init_hdr)(struct nfs_pgio_header *hdr); 1687 void (*completion)(struct nfs_pgio_header *hdr); 1688 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1689 }; 1690 1691 struct nfs_unlinkdata { 1692 struct nfs_removeargs args; 1693 struct nfs_removeres res; 1694 struct dentry *dentry; 1695 wait_queue_head_t wq; 1696 const struct cred *cred; 1697 struct nfs_fattr dir_attr; 1698 long timeout; 1699 }; 1700 1701 struct nfs_renamedata { 1702 struct nfs_renameargs args; 1703 struct nfs_renameres res; 1704 const struct cred *cred; 1705 struct inode *old_dir; 1706 struct dentry *old_dentry; 1707 struct nfs_fattr old_fattr; 1708 struct inode *new_dir; 1709 struct dentry *new_dentry; 1710 struct nfs_fattr new_fattr; 1711 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1712 long timeout; 1713 bool cancelled; 1714 }; 1715 1716 struct nfs_access_entry; 1717 struct nfs_client; 1718 struct rpc_timeout; 1719 struct nfs_subversion; 1720 struct nfs_mount_info; 1721 struct nfs_client_initdata; 1722 struct nfs_pageio_descriptor; 1723 struct fs_context; 1724 1725 /* 1726 * RPC procedure vector for NFSv2/NFSv3 demuxing 1727 */ 1728 struct nfs_rpc_ops { 1729 u32 version; /* Protocol version */ 1730 const struct dentry_operations *dentry_ops; 1731 const struct inode_operations *dir_inode_ops; 1732 const struct inode_operations *file_inode_ops; 1733 const struct file_operations *file_ops; 1734 const struct nlmclnt_operations *nlmclnt_ops; 1735 1736 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1737 struct nfs_fsinfo *); 1738 int (*submount) (struct fs_context *, struct nfs_server *); 1739 int (*try_get_tree) (struct fs_context *); 1740 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1741 struct nfs_fattr *, struct nfs4_label *, 1742 struct inode *); 1743 int (*setattr) (struct dentry *, struct nfs_fattr *, 1744 struct iattr *); 1745 int (*lookup) (struct inode *, struct dentry *, 1746 struct nfs_fh *, struct nfs_fattr *, 1747 struct nfs4_label *); 1748 int (*lookupp) (struct inode *, struct nfs_fh *, 1749 struct nfs_fattr *, struct nfs4_label *); 1750 int (*access) (struct inode *, struct nfs_access_entry *); 1751 int (*readlink)(struct inode *, struct page *, unsigned int, 1752 unsigned int); 1753 int (*create) (struct inode *, struct dentry *, 1754 struct iattr *, int); 1755 int (*remove) (struct inode *, struct dentry *); 1756 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1757 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1758 int (*unlink_done) (struct rpc_task *, struct inode *); 1759 void (*rename_setup) (struct rpc_message *msg, 1760 struct dentry *old_dentry, 1761 struct dentry *new_dentry); 1762 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1763 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1764 int (*link) (struct inode *, struct inode *, const struct qstr *); 1765 int (*symlink) (struct inode *, struct dentry *, struct page *, 1766 unsigned int, struct iattr *); 1767 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1768 int (*rmdir) (struct inode *, const struct qstr *); 1769 int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); 1770 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1771 dev_t); 1772 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1773 struct nfs_fsstat *); 1774 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1775 struct nfs_fsinfo *); 1776 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1777 struct nfs_pathconf *); 1778 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1779 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1780 int (*pgio_rpc_prepare)(struct rpc_task *, 1781 struct nfs_pgio_header *); 1782 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1783 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1784 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1785 struct rpc_clnt **); 1786 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1787 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1788 struct rpc_clnt **); 1789 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1790 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1791 int (*lock)(struct file *, int, struct file_lock *); 1792 int (*lock_check_bounds)(const struct file_lock *); 1793 void (*clear_acl_cache)(struct inode *); 1794 void (*close_context)(struct nfs_open_context *ctx, int); 1795 struct inode * (*open_context) (struct inode *dir, 1796 struct nfs_open_context *ctx, 1797 int open_flags, 1798 struct iattr *iattr, 1799 int *); 1800 int (*have_delegation)(struct inode *, fmode_t); 1801 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1802 struct nfs_client *(*init_client) (struct nfs_client *, 1803 const struct nfs_client_initdata *); 1804 void (*free_client) (struct nfs_client *); 1805 struct nfs_server *(*create_server)(struct fs_context *); 1806 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1807 struct nfs_fattr *, rpc_authflavor_t); 1808 }; 1809 1810 /* 1811 * NFS_CALL(getattr, inode, (fattr)); 1812 * into 1813 * NFS_PROTO(inode)->getattr(fattr); 1814 */ 1815 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1816 1817 /* 1818 * Function vectors etc. for the NFS client 1819 */ 1820 extern const struct nfs_rpc_ops nfs_v2_clientops; 1821 extern const struct nfs_rpc_ops nfs_v3_clientops; 1822 extern const struct nfs_rpc_ops nfs_v4_clientops; 1823 extern const struct rpc_version nfs_version2; 1824 extern const struct rpc_version nfs_version3; 1825 extern const struct rpc_version nfs_version4; 1826 1827 extern const struct rpc_version nfsacl_version3; 1828 extern const struct rpc_program nfsacl_program; 1829 1830 #endif 1831