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 nfs_seqid * seqid; 492 const struct nfs_server *server; 493 fmode_t delegation_type; 494 nfs4_stateid delegation; 495 unsigned long pagemod_limit; 496 __u32 do_recall; 497 __u32 attrset[NFS4_BITMAP_SIZE]; 498 struct nfs4_string *owner; 499 struct nfs4_string *group_owner; 500 __u32 access_request; 501 __u32 access_supported; 502 __u32 access_result; 503 struct nfs4_layoutget_res *lg_res; 504 }; 505 506 /* 507 * Arguments to the open_confirm call. 508 */ 509 struct nfs_open_confirmargs { 510 struct nfs4_sequence_args seq_args; 511 const struct nfs_fh * fh; 512 nfs4_stateid * stateid; 513 struct nfs_seqid * seqid; 514 }; 515 516 struct nfs_open_confirmres { 517 struct nfs4_sequence_res seq_res; 518 nfs4_stateid stateid; 519 struct nfs_seqid * seqid; 520 }; 521 522 /* 523 * Arguments to the close call. 524 */ 525 struct nfs_closeargs { 526 struct nfs4_sequence_args seq_args; 527 struct nfs_fh * fh; 528 nfs4_stateid stateid; 529 struct nfs_seqid * seqid; 530 fmode_t fmode; 531 u32 share_access; 532 const u32 * bitmask; 533 u32 bitmask_store[NFS_BITMASK_SZ]; 534 struct nfs4_layoutreturn_args *lr_args; 535 }; 536 537 struct nfs_closeres { 538 struct nfs4_sequence_res seq_res; 539 nfs4_stateid stateid; 540 struct nfs_fattr * fattr; 541 struct nfs_seqid * seqid; 542 const struct nfs_server *server; 543 struct nfs4_layoutreturn_res *lr_res; 544 int lr_ret; 545 }; 546 /* 547 * * Arguments to the lock,lockt, and locku call. 548 * */ 549 struct nfs_lowner { 550 __u64 clientid; 551 __u64 id; 552 dev_t s_dev; 553 }; 554 555 struct nfs_lock_args { 556 struct nfs4_sequence_args seq_args; 557 struct nfs_fh * fh; 558 struct file_lock * fl; 559 struct nfs_seqid * lock_seqid; 560 nfs4_stateid lock_stateid; 561 struct nfs_seqid * open_seqid; 562 nfs4_stateid open_stateid; 563 struct nfs_lowner lock_owner; 564 unsigned char block : 1; 565 unsigned char reclaim : 1; 566 unsigned char new_lock : 1; 567 unsigned char new_lock_owner : 1; 568 }; 569 570 struct nfs_lock_res { 571 struct nfs4_sequence_res seq_res; 572 nfs4_stateid stateid; 573 struct nfs_seqid * lock_seqid; 574 struct nfs_seqid * open_seqid; 575 }; 576 577 struct nfs_locku_args { 578 struct nfs4_sequence_args seq_args; 579 struct nfs_fh * fh; 580 struct file_lock * fl; 581 struct nfs_seqid * seqid; 582 nfs4_stateid stateid; 583 }; 584 585 struct nfs_locku_res { 586 struct nfs4_sequence_res seq_res; 587 nfs4_stateid stateid; 588 struct nfs_seqid * seqid; 589 }; 590 591 struct nfs_lockt_args { 592 struct nfs4_sequence_args seq_args; 593 struct nfs_fh * fh; 594 struct file_lock * fl; 595 struct nfs_lowner lock_owner; 596 }; 597 598 struct nfs_lockt_res { 599 struct nfs4_sequence_res seq_res; 600 struct file_lock * denied; /* LOCK, LOCKT failed */ 601 }; 602 603 struct nfs_release_lockowner_args { 604 struct nfs4_sequence_args seq_args; 605 struct nfs_lowner lock_owner; 606 }; 607 608 struct nfs_release_lockowner_res { 609 struct nfs4_sequence_res seq_res; 610 }; 611 612 struct nfs4_delegreturnargs { 613 struct nfs4_sequence_args seq_args; 614 const struct nfs_fh *fhandle; 615 const nfs4_stateid *stateid; 616 const u32 *bitmask; 617 u32 bitmask_store[NFS_BITMASK_SZ]; 618 struct nfs4_layoutreturn_args *lr_args; 619 }; 620 621 struct nfs4_delegreturnres { 622 struct nfs4_sequence_res seq_res; 623 struct nfs_fattr * fattr; 624 struct nfs_server *server; 625 struct nfs4_layoutreturn_res *lr_res; 626 int lr_ret; 627 }; 628 629 /* 630 * Arguments to the write call. 631 */ 632 struct nfs_write_verifier { 633 char data[8]; 634 }; 635 636 struct nfs_writeverf { 637 struct nfs_write_verifier verifier; 638 enum nfs3_stable_how committed; 639 }; 640 641 /* 642 * Arguments shared by the read and write call. 643 */ 644 struct nfs_pgio_args { 645 struct nfs4_sequence_args seq_args; 646 struct nfs_fh * fh; 647 struct nfs_open_context *context; 648 struct nfs_lock_context *lock_context; 649 nfs4_stateid stateid; 650 __u64 offset; 651 __u32 count; 652 unsigned int pgbase; 653 struct page ** pages; 654 union { 655 unsigned int replen; /* used by read */ 656 struct { 657 const u32 * bitmask; /* used by write */ 658 u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */ 659 enum nfs3_stable_how stable; /* used by write */ 660 }; 661 }; 662 }; 663 664 struct nfs_pgio_res { 665 struct nfs4_sequence_res seq_res; 666 struct nfs_fattr * fattr; 667 __u64 count; 668 __u32 op_status; 669 union { 670 struct { 671 unsigned int replen; /* used by read */ 672 int eof; /* used by read */ 673 }; 674 struct { 675 struct nfs_writeverf * verf; /* used by write */ 676 const struct nfs_server *server; /* used by write */ 677 }; 678 }; 679 }; 680 681 /* 682 * Arguments to the commit call. 683 */ 684 struct nfs_commitargs { 685 struct nfs4_sequence_args seq_args; 686 struct nfs_fh *fh; 687 __u64 offset; 688 __u32 count; 689 const u32 *bitmask; 690 }; 691 692 struct nfs_commitres { 693 struct nfs4_sequence_res seq_res; 694 __u32 op_status; 695 struct nfs_fattr *fattr; 696 struct nfs_writeverf *verf; 697 const struct nfs_server *server; 698 }; 699 700 /* 701 * Common arguments to the unlink call 702 */ 703 struct nfs_removeargs { 704 struct nfs4_sequence_args seq_args; 705 const struct nfs_fh *fh; 706 struct qstr name; 707 }; 708 709 struct nfs_removeres { 710 struct nfs4_sequence_res seq_res; 711 struct nfs_server *server; 712 struct nfs_fattr *dir_attr; 713 struct nfs4_change_info cinfo; 714 }; 715 716 /* 717 * Common arguments to the rename call 718 */ 719 struct nfs_renameargs { 720 struct nfs4_sequence_args seq_args; 721 const struct nfs_fh *old_dir; 722 const struct nfs_fh *new_dir; 723 const struct qstr *old_name; 724 const struct qstr *new_name; 725 }; 726 727 struct nfs_renameres { 728 struct nfs4_sequence_res seq_res; 729 struct nfs_server *server; 730 struct nfs4_change_info old_cinfo; 731 struct nfs_fattr *old_fattr; 732 struct nfs4_change_info new_cinfo; 733 struct nfs_fattr *new_fattr; 734 }; 735 736 /* parsed sec= options */ 737 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 738 struct nfs_auth_info { 739 unsigned int flavor_len; 740 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 741 }; 742 743 /* 744 * Argument struct for decode_entry function 745 */ 746 struct nfs_entry { 747 __u64 ino; 748 __u64 cookie, 749 prev_cookie; 750 const char * name; 751 unsigned int len; 752 int eof; 753 struct nfs_fh * fh; 754 struct nfs_fattr * fattr; 755 unsigned char d_type; 756 struct nfs_server * server; 757 }; 758 759 struct nfs_readdir_arg { 760 struct dentry *dentry; 761 const struct cred *cred; 762 __be32 *verf; 763 u64 cookie; 764 struct page **pages; 765 unsigned int page_len; 766 bool plus; 767 }; 768 769 struct nfs_readdir_res { 770 __be32 *verf; 771 }; 772 773 /* 774 * The following types are for NFSv2 only. 775 */ 776 struct nfs_sattrargs { 777 struct nfs_fh * fh; 778 struct iattr * sattr; 779 }; 780 781 struct nfs_diropargs { 782 struct nfs_fh * fh; 783 const char * name; 784 unsigned int len; 785 }; 786 787 struct nfs_createargs { 788 struct nfs_fh * fh; 789 const char * name; 790 unsigned int len; 791 struct iattr * sattr; 792 }; 793 794 struct nfs_setattrargs { 795 struct nfs4_sequence_args seq_args; 796 struct nfs_fh * fh; 797 nfs4_stateid stateid; 798 struct iattr * iap; 799 const struct nfs_server * server; /* Needed for name mapping */ 800 const u32 * bitmask; 801 const struct nfs4_label *label; 802 }; 803 804 struct nfs_setaclargs { 805 struct nfs4_sequence_args seq_args; 806 struct nfs_fh * fh; 807 size_t acl_len; 808 struct page ** acl_pages; 809 }; 810 811 struct nfs_setaclres { 812 struct nfs4_sequence_res seq_res; 813 }; 814 815 struct nfs_getaclargs { 816 struct nfs4_sequence_args seq_args; 817 struct nfs_fh * fh; 818 size_t acl_len; 819 struct page ** acl_pages; 820 }; 821 822 /* getxattr ACL interface flags */ 823 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 824 struct nfs_getaclres { 825 struct nfs4_sequence_res seq_res; 826 size_t acl_len; 827 size_t acl_data_offset; 828 int acl_flags; 829 struct page * acl_scratch; 830 }; 831 832 struct nfs_setattrres { 833 struct nfs4_sequence_res seq_res; 834 struct nfs_fattr * fattr; 835 const struct nfs_server * server; 836 }; 837 838 struct nfs_linkargs { 839 struct nfs_fh * fromfh; 840 struct nfs_fh * tofh; 841 const char * toname; 842 unsigned int tolen; 843 }; 844 845 struct nfs_symlinkargs { 846 struct nfs_fh * fromfh; 847 const char * fromname; 848 unsigned int fromlen; 849 struct page ** pages; 850 unsigned int pathlen; 851 struct iattr * sattr; 852 }; 853 854 struct nfs_readdirargs { 855 struct nfs_fh * fh; 856 __u32 cookie; 857 unsigned int count; 858 struct page ** pages; 859 }; 860 861 struct nfs3_getaclargs { 862 struct nfs_fh * fh; 863 int mask; 864 struct page ** pages; 865 }; 866 867 struct nfs3_setaclargs { 868 struct inode * inode; 869 int mask; 870 struct posix_acl * acl_access; 871 struct posix_acl * acl_default; 872 size_t len; 873 unsigned int npages; 874 struct page ** pages; 875 }; 876 877 struct nfs_diropok { 878 struct nfs_fh * fh; 879 struct nfs_fattr * fattr; 880 }; 881 882 struct nfs_readlinkargs { 883 struct nfs_fh * fh; 884 unsigned int pgbase; 885 unsigned int pglen; 886 struct page ** pages; 887 }; 888 889 struct nfs3_sattrargs { 890 struct nfs_fh * fh; 891 struct iattr * sattr; 892 unsigned int guard; 893 struct timespec64 guardtime; 894 }; 895 896 struct nfs3_diropargs { 897 struct nfs_fh * fh; 898 const char * name; 899 unsigned int len; 900 }; 901 902 struct nfs3_accessargs { 903 struct nfs_fh * fh; 904 __u32 access; 905 }; 906 907 struct nfs3_createargs { 908 struct nfs_fh * fh; 909 const char * name; 910 unsigned int len; 911 struct iattr * sattr; 912 enum nfs3_createmode createmode; 913 __be32 verifier[2]; 914 }; 915 916 struct nfs3_mkdirargs { 917 struct nfs_fh * fh; 918 const char * name; 919 unsigned int len; 920 struct iattr * sattr; 921 }; 922 923 struct nfs3_symlinkargs { 924 struct nfs_fh * fromfh; 925 const char * fromname; 926 unsigned int fromlen; 927 struct page ** pages; 928 unsigned int pathlen; 929 struct iattr * sattr; 930 }; 931 932 struct nfs3_mknodargs { 933 struct nfs_fh * fh; 934 const char * name; 935 unsigned int len; 936 enum nfs3_ftype type; 937 struct iattr * sattr; 938 dev_t rdev; 939 }; 940 941 struct nfs3_linkargs { 942 struct nfs_fh * fromfh; 943 struct nfs_fh * tofh; 944 const char * toname; 945 unsigned int tolen; 946 }; 947 948 struct nfs3_readdirargs { 949 struct nfs_fh * fh; 950 __u64 cookie; 951 __be32 verf[2]; 952 bool plus; 953 unsigned int count; 954 struct page ** pages; 955 }; 956 957 struct nfs3_diropres { 958 struct nfs_fattr * dir_attr; 959 struct nfs_fh * fh; 960 struct nfs_fattr * fattr; 961 }; 962 963 struct nfs3_accessres { 964 struct nfs_fattr * fattr; 965 __u32 access; 966 }; 967 968 struct nfs3_readlinkargs { 969 struct nfs_fh * fh; 970 unsigned int pgbase; 971 unsigned int pglen; 972 struct page ** pages; 973 }; 974 975 struct nfs3_linkres { 976 struct nfs_fattr * dir_attr; 977 struct nfs_fattr * fattr; 978 }; 979 980 struct nfs3_readdirres { 981 struct nfs_fattr * dir_attr; 982 __be32 * verf; 983 bool plus; 984 }; 985 986 struct nfs3_getaclres { 987 struct nfs_fattr * fattr; 988 int mask; 989 unsigned int acl_access_count; 990 unsigned int acl_default_count; 991 struct posix_acl * acl_access; 992 struct posix_acl * acl_default; 993 }; 994 995 #if IS_ENABLED(CONFIG_NFS_V4) 996 997 typedef u64 clientid4; 998 999 struct nfs4_accessargs { 1000 struct nfs4_sequence_args seq_args; 1001 const struct nfs_fh * fh; 1002 const u32 * bitmask; 1003 u32 access; 1004 }; 1005 1006 struct nfs4_accessres { 1007 struct nfs4_sequence_res seq_res; 1008 const struct nfs_server * server; 1009 struct nfs_fattr * fattr; 1010 u32 supported; 1011 u32 access; 1012 }; 1013 1014 struct nfs4_create_arg { 1015 struct nfs4_sequence_args seq_args; 1016 u32 ftype; 1017 union { 1018 struct { 1019 struct page ** pages; 1020 unsigned int len; 1021 } symlink; /* NF4LNK */ 1022 struct { 1023 u32 specdata1; 1024 u32 specdata2; 1025 } device; /* NF4BLK, NF4CHR */ 1026 } u; 1027 const struct qstr * name; 1028 const struct nfs_server * server; 1029 const struct iattr * attrs; 1030 const struct nfs_fh * dir_fh; 1031 const u32 * bitmask; 1032 const struct nfs4_label *label; 1033 umode_t umask; 1034 }; 1035 1036 struct nfs4_create_res { 1037 struct nfs4_sequence_res seq_res; 1038 const struct nfs_server * server; 1039 struct nfs_fh * fh; 1040 struct nfs_fattr * fattr; 1041 struct nfs4_change_info dir_cinfo; 1042 }; 1043 1044 struct nfs4_fsinfo_arg { 1045 struct nfs4_sequence_args seq_args; 1046 const struct nfs_fh * fh; 1047 const u32 * bitmask; 1048 }; 1049 1050 struct nfs4_fsinfo_res { 1051 struct nfs4_sequence_res seq_res; 1052 struct nfs_fsinfo *fsinfo; 1053 }; 1054 1055 struct nfs4_getattr_arg { 1056 struct nfs4_sequence_args seq_args; 1057 const struct nfs_fh * fh; 1058 const u32 * bitmask; 1059 }; 1060 1061 struct nfs4_getattr_res { 1062 struct nfs4_sequence_res seq_res; 1063 const struct nfs_server * server; 1064 struct nfs_fattr * fattr; 1065 }; 1066 1067 struct nfs4_link_arg { 1068 struct nfs4_sequence_args seq_args; 1069 const struct nfs_fh * fh; 1070 const struct nfs_fh * dir_fh; 1071 const struct qstr * name; 1072 const u32 * bitmask; 1073 }; 1074 1075 struct nfs4_link_res { 1076 struct nfs4_sequence_res seq_res; 1077 const struct nfs_server * server; 1078 struct nfs_fattr * fattr; 1079 struct nfs4_change_info cinfo; 1080 struct nfs_fattr * dir_attr; 1081 }; 1082 1083 struct nfs4_lookup_arg { 1084 struct nfs4_sequence_args seq_args; 1085 const struct nfs_fh * dir_fh; 1086 const struct qstr * name; 1087 const u32 * bitmask; 1088 }; 1089 1090 struct nfs4_lookup_res { 1091 struct nfs4_sequence_res seq_res; 1092 const struct nfs_server * server; 1093 struct nfs_fattr * fattr; 1094 struct nfs_fh * fh; 1095 }; 1096 1097 struct nfs4_lookupp_arg { 1098 struct nfs4_sequence_args seq_args; 1099 const struct nfs_fh *fh; 1100 const u32 *bitmask; 1101 }; 1102 1103 struct nfs4_lookupp_res { 1104 struct nfs4_sequence_res seq_res; 1105 const struct nfs_server *server; 1106 struct nfs_fattr *fattr; 1107 struct nfs_fh *fh; 1108 }; 1109 1110 struct nfs4_lookup_root_arg { 1111 struct nfs4_sequence_args seq_args; 1112 const u32 * bitmask; 1113 }; 1114 1115 struct nfs4_pathconf_arg { 1116 struct nfs4_sequence_args seq_args; 1117 const struct nfs_fh * fh; 1118 const u32 * bitmask; 1119 }; 1120 1121 struct nfs4_pathconf_res { 1122 struct nfs4_sequence_res seq_res; 1123 struct nfs_pathconf *pathconf; 1124 }; 1125 1126 struct nfs4_readdir_arg { 1127 struct nfs4_sequence_args seq_args; 1128 const struct nfs_fh * fh; 1129 u64 cookie; 1130 nfs4_verifier verifier; 1131 u32 count; 1132 struct page ** pages; /* zero-copy data */ 1133 unsigned int pgbase; /* zero-copy data */ 1134 const u32 * bitmask; 1135 bool plus; 1136 }; 1137 1138 struct nfs4_readdir_res { 1139 struct nfs4_sequence_res seq_res; 1140 nfs4_verifier verifier; 1141 unsigned int pgbase; 1142 }; 1143 1144 struct nfs4_readlink { 1145 struct nfs4_sequence_args seq_args; 1146 const struct nfs_fh * fh; 1147 unsigned int pgbase; 1148 unsigned int pglen; /* zero-copy data */ 1149 struct page ** pages; /* zero-copy data */ 1150 }; 1151 1152 struct nfs4_readlink_res { 1153 struct nfs4_sequence_res seq_res; 1154 }; 1155 1156 struct nfs4_setclientid { 1157 const nfs4_verifier * sc_verifier; 1158 u32 sc_prog; 1159 unsigned int sc_netid_len; 1160 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1161 unsigned int sc_uaddr_len; 1162 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1163 struct nfs_client *sc_clnt; 1164 struct rpc_cred *sc_cred; 1165 }; 1166 1167 struct nfs4_setclientid_res { 1168 u64 clientid; 1169 nfs4_verifier confirm; 1170 }; 1171 1172 struct nfs4_statfs_arg { 1173 struct nfs4_sequence_args seq_args; 1174 const struct nfs_fh * fh; 1175 const u32 * bitmask; 1176 }; 1177 1178 struct nfs4_statfs_res { 1179 struct nfs4_sequence_res seq_res; 1180 struct nfs_fsstat *fsstat; 1181 }; 1182 1183 struct nfs4_server_caps_arg { 1184 struct nfs4_sequence_args seq_args; 1185 struct nfs_fh *fhandle; 1186 const u32 * bitmask; 1187 }; 1188 1189 struct nfs4_server_caps_res { 1190 struct nfs4_sequence_res seq_res; 1191 u32 attr_bitmask[3]; 1192 u32 exclcreat_bitmask[3]; 1193 u32 acl_bitmask; 1194 u32 has_links; 1195 u32 has_symlinks; 1196 u32 fh_expire_type; 1197 u32 case_insensitive; 1198 u32 case_preserving; 1199 }; 1200 1201 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1202 struct nfs4_pathname { 1203 unsigned int ncomponents; 1204 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1205 }; 1206 1207 #define NFS4_FS_LOCATION_MAXSERVERS 10 1208 struct nfs4_fs_location { 1209 unsigned int nservers; 1210 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1211 struct nfs4_pathname rootpath; 1212 }; 1213 1214 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1215 struct nfs4_fs_locations { 1216 struct nfs_fattr fattr; 1217 const struct nfs_server *server; 1218 struct nfs4_pathname fs_path; 1219 int nlocations; 1220 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1221 }; 1222 1223 struct nfs4_fs_locations_arg { 1224 struct nfs4_sequence_args seq_args; 1225 const struct nfs_fh *dir_fh; 1226 const struct nfs_fh *fh; 1227 const struct qstr *name; 1228 struct page *page; 1229 const u32 *bitmask; 1230 clientid4 clientid; 1231 unsigned char migration:1, renew:1; 1232 }; 1233 1234 struct nfs4_fs_locations_res { 1235 struct nfs4_sequence_res seq_res; 1236 struct nfs4_fs_locations *fs_locations; 1237 unsigned char migration:1, renew:1; 1238 }; 1239 1240 struct nfs4_secinfo4 { 1241 u32 flavor; 1242 struct rpcsec_gss_info flavor_info; 1243 }; 1244 1245 struct nfs4_secinfo_flavors { 1246 unsigned int num_flavors; 1247 struct nfs4_secinfo4 flavors[]; 1248 }; 1249 1250 struct nfs4_secinfo_arg { 1251 struct nfs4_sequence_args seq_args; 1252 const struct nfs_fh *dir_fh; 1253 const struct qstr *name; 1254 }; 1255 1256 struct nfs4_secinfo_res { 1257 struct nfs4_sequence_res seq_res; 1258 struct nfs4_secinfo_flavors *flavors; 1259 }; 1260 1261 struct nfs4_fsid_present_arg { 1262 struct nfs4_sequence_args seq_args; 1263 const struct nfs_fh *fh; 1264 clientid4 clientid; 1265 unsigned char renew:1; 1266 }; 1267 1268 struct nfs4_fsid_present_res { 1269 struct nfs4_sequence_res seq_res; 1270 struct nfs_fh *fh; 1271 unsigned char renew:1; 1272 }; 1273 1274 #endif /* CONFIG_NFS_V4 */ 1275 1276 struct nfstime4 { 1277 u64 seconds; 1278 u32 nseconds; 1279 }; 1280 1281 #ifdef CONFIG_NFS_V4_1 1282 1283 struct pnfs_commit_bucket { 1284 struct list_head written; 1285 struct list_head committing; 1286 struct pnfs_layout_segment *lseg; 1287 struct nfs_writeverf direct_verf; 1288 }; 1289 1290 struct pnfs_commit_array { 1291 struct list_head cinfo_list; 1292 struct list_head lseg_list; 1293 struct pnfs_layout_segment *lseg; 1294 struct rcu_head rcu; 1295 refcount_t refcount; 1296 unsigned int nbuckets; 1297 struct pnfs_commit_bucket buckets[]; 1298 }; 1299 1300 struct pnfs_ds_commit_info { 1301 struct list_head commits; 1302 unsigned int nwritten; 1303 unsigned int ncommitting; 1304 const struct pnfs_commit_ops *ops; 1305 }; 1306 1307 struct nfs41_state_protection { 1308 u32 how; 1309 struct nfs4_op_map enforce; 1310 struct nfs4_op_map allow; 1311 }; 1312 1313 struct nfs41_exchange_id_args { 1314 struct nfs_client *client; 1315 nfs4_verifier verifier; 1316 u32 flags; 1317 struct nfs41_state_protection state_protect; 1318 }; 1319 1320 struct nfs41_server_owner { 1321 uint64_t minor_id; 1322 uint32_t major_id_sz; 1323 char major_id[NFS4_OPAQUE_LIMIT]; 1324 }; 1325 1326 struct nfs41_server_scope { 1327 uint32_t server_scope_sz; 1328 char server_scope[NFS4_OPAQUE_LIMIT]; 1329 }; 1330 1331 struct nfs41_impl_id { 1332 char domain[NFS4_OPAQUE_LIMIT + 1]; 1333 char name[NFS4_OPAQUE_LIMIT + 1]; 1334 struct nfstime4 date; 1335 }; 1336 1337 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1338 struct nfs41_bind_conn_to_session_args { 1339 struct nfs_client *client; 1340 struct nfs4_sessionid sessionid; 1341 u32 dir; 1342 bool use_conn_in_rdma_mode; 1343 int retries; 1344 }; 1345 1346 struct nfs41_bind_conn_to_session_res { 1347 struct nfs4_sessionid sessionid; 1348 u32 dir; 1349 bool use_conn_in_rdma_mode; 1350 }; 1351 1352 struct nfs41_exchange_id_res { 1353 u64 clientid; 1354 u32 seqid; 1355 u32 flags; 1356 struct nfs41_server_owner *server_owner; 1357 struct nfs41_server_scope *server_scope; 1358 struct nfs41_impl_id *impl_id; 1359 struct nfs41_state_protection state_protect; 1360 }; 1361 1362 struct nfs41_create_session_args { 1363 struct nfs_client *client; 1364 u64 clientid; 1365 uint32_t seqid; 1366 uint32_t flags; 1367 uint32_t cb_program; 1368 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1369 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1370 }; 1371 1372 struct nfs41_create_session_res { 1373 struct nfs4_sessionid sessionid; 1374 uint32_t seqid; 1375 uint32_t flags; 1376 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1377 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1378 }; 1379 1380 struct nfs41_reclaim_complete_args { 1381 struct nfs4_sequence_args seq_args; 1382 /* In the future extend to include curr_fh for use with migration */ 1383 unsigned char one_fs:1; 1384 }; 1385 1386 struct nfs41_reclaim_complete_res { 1387 struct nfs4_sequence_res seq_res; 1388 }; 1389 1390 #define SECINFO_STYLE_CURRENT_FH 0 1391 #define SECINFO_STYLE_PARENT 1 1392 struct nfs41_secinfo_no_name_args { 1393 struct nfs4_sequence_args seq_args; 1394 int style; 1395 }; 1396 1397 struct nfs41_test_stateid_args { 1398 struct nfs4_sequence_args seq_args; 1399 nfs4_stateid *stateid; 1400 }; 1401 1402 struct nfs41_test_stateid_res { 1403 struct nfs4_sequence_res seq_res; 1404 unsigned int status; 1405 }; 1406 1407 struct nfs41_free_stateid_args { 1408 struct nfs4_sequence_args seq_args; 1409 nfs4_stateid stateid; 1410 }; 1411 1412 struct nfs41_free_stateid_res { 1413 struct nfs4_sequence_res seq_res; 1414 unsigned int status; 1415 }; 1416 1417 #else 1418 1419 struct pnfs_ds_commit_info { 1420 }; 1421 1422 #endif /* CONFIG_NFS_V4_1 */ 1423 1424 #ifdef CONFIG_NFS_V4_2 1425 struct nfs42_falloc_args { 1426 struct nfs4_sequence_args seq_args; 1427 1428 struct nfs_fh *falloc_fh; 1429 nfs4_stateid falloc_stateid; 1430 u64 falloc_offset; 1431 u64 falloc_length; 1432 const u32 *falloc_bitmask; 1433 }; 1434 1435 struct nfs42_falloc_res { 1436 struct nfs4_sequence_res seq_res; 1437 unsigned int status; 1438 1439 struct nfs_fattr *falloc_fattr; 1440 const struct nfs_server *falloc_server; 1441 }; 1442 1443 struct nfs42_copy_args { 1444 struct nfs4_sequence_args seq_args; 1445 1446 struct nfs_fh *src_fh; 1447 nfs4_stateid src_stateid; 1448 u64 src_pos; 1449 1450 struct nfs_fh *dst_fh; 1451 nfs4_stateid dst_stateid; 1452 u64 dst_pos; 1453 1454 u64 count; 1455 bool sync; 1456 struct nl4_server *cp_src; 1457 }; 1458 1459 struct nfs42_write_res { 1460 nfs4_stateid stateid; 1461 u64 count; 1462 struct nfs_writeverf verifier; 1463 }; 1464 1465 struct nfs42_copy_res { 1466 struct nfs4_sequence_res seq_res; 1467 struct nfs42_write_res write_res; 1468 bool consecutive; 1469 bool synchronous; 1470 struct nfs_commitres commit_res; 1471 }; 1472 1473 struct nfs42_offload_status_args { 1474 struct nfs4_sequence_args osa_seq_args; 1475 struct nfs_fh *osa_src_fh; 1476 nfs4_stateid osa_stateid; 1477 }; 1478 1479 struct nfs42_offload_status_res { 1480 struct nfs4_sequence_res osr_seq_res; 1481 uint64_t osr_count; 1482 int osr_status; 1483 }; 1484 1485 struct nfs42_copy_notify_args { 1486 struct nfs4_sequence_args cna_seq_args; 1487 1488 struct nfs_fh *cna_src_fh; 1489 nfs4_stateid cna_src_stateid; 1490 struct nl4_server cna_dst; 1491 }; 1492 1493 struct nfs42_copy_notify_res { 1494 struct nfs4_sequence_res cnr_seq_res; 1495 1496 struct nfstime4 cnr_lease_time; 1497 nfs4_stateid cnr_stateid; 1498 struct nl4_server cnr_src; 1499 }; 1500 1501 struct nfs42_seek_args { 1502 struct nfs4_sequence_args seq_args; 1503 1504 struct nfs_fh *sa_fh; 1505 nfs4_stateid sa_stateid; 1506 u64 sa_offset; 1507 u32 sa_what; 1508 }; 1509 1510 struct nfs42_seek_res { 1511 struct nfs4_sequence_res seq_res; 1512 unsigned int status; 1513 1514 u32 sr_eof; 1515 u64 sr_offset; 1516 }; 1517 1518 struct nfs42_setxattrargs { 1519 struct nfs4_sequence_args seq_args; 1520 struct nfs_fh *fh; 1521 const char *xattr_name; 1522 u32 xattr_flags; 1523 size_t xattr_len; 1524 struct page **xattr_pages; 1525 }; 1526 1527 struct nfs42_setxattrres { 1528 struct nfs4_sequence_res seq_res; 1529 struct nfs4_change_info cinfo; 1530 }; 1531 1532 struct nfs42_getxattrargs { 1533 struct nfs4_sequence_args seq_args; 1534 struct nfs_fh *fh; 1535 const char *xattr_name; 1536 size_t xattr_len; 1537 struct page **xattr_pages; 1538 }; 1539 1540 struct nfs42_getxattrres { 1541 struct nfs4_sequence_res seq_res; 1542 size_t xattr_len; 1543 }; 1544 1545 struct nfs42_listxattrsargs { 1546 struct nfs4_sequence_args seq_args; 1547 struct nfs_fh *fh; 1548 u32 count; 1549 u64 cookie; 1550 struct page **xattr_pages; 1551 }; 1552 1553 struct nfs42_listxattrsres { 1554 struct nfs4_sequence_res seq_res; 1555 struct page *scratch; 1556 void *xattr_buf; 1557 size_t xattr_len; 1558 u64 cookie; 1559 bool eof; 1560 size_t copied; 1561 }; 1562 1563 struct nfs42_removexattrargs { 1564 struct nfs4_sequence_args seq_args; 1565 struct nfs_fh *fh; 1566 const char *xattr_name; 1567 }; 1568 1569 struct nfs42_removexattrres { 1570 struct nfs4_sequence_res seq_res; 1571 struct nfs4_change_info cinfo; 1572 }; 1573 1574 #endif /* CONFIG_NFS_V4_2 */ 1575 1576 struct nfs_page; 1577 1578 #define NFS_PAGEVEC_SIZE (8U) 1579 1580 struct nfs_page_array { 1581 struct page **pagevec; 1582 unsigned int npages; /* Max length of pagevec */ 1583 struct page *page_array[NFS_PAGEVEC_SIZE]; 1584 }; 1585 1586 /* used as flag bits in nfs_pgio_header */ 1587 enum { 1588 NFS_IOHDR_ERROR = 0, 1589 NFS_IOHDR_EOF, 1590 NFS_IOHDR_REDO, 1591 NFS_IOHDR_STAT, 1592 NFS_IOHDR_RESEND_PNFS, 1593 NFS_IOHDR_RESEND_MDS, 1594 }; 1595 1596 struct nfs_io_completion; 1597 struct nfs_pgio_header { 1598 struct inode *inode; 1599 const struct cred *cred; 1600 struct list_head pages; 1601 struct nfs_page *req; 1602 struct nfs_writeverf verf; /* Used for writes */ 1603 fmode_t rw_mode; 1604 struct pnfs_layout_segment *lseg; 1605 loff_t io_start; 1606 const struct rpc_call_ops *mds_ops; 1607 void (*release) (struct nfs_pgio_header *hdr); 1608 const struct nfs_pgio_completion_ops *completion_ops; 1609 const struct nfs_rw_ops *rw_ops; 1610 struct nfs_io_completion *io_completion; 1611 struct nfs_direct_req *dreq; 1612 1613 int pnfs_error; 1614 int error; /* merge with pnfs_error */ 1615 unsigned int good_bytes; /* boundary of good data */ 1616 unsigned long flags; 1617 1618 /* 1619 * rpc data 1620 */ 1621 struct rpc_task task; 1622 struct nfs_fattr fattr; 1623 struct nfs_pgio_args args; /* argument struct */ 1624 struct nfs_pgio_res res; /* result struct */ 1625 unsigned long timestamp; /* For lease renewal */ 1626 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1627 __u64 mds_offset; /* Filelayout dense stripe */ 1628 struct nfs_page_array page_array; 1629 struct nfs_client *ds_clp; /* pNFS data server */ 1630 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1631 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1632 }; 1633 1634 struct nfs_mds_commit_info { 1635 atomic_t rpcs_out; 1636 atomic_long_t ncommit; 1637 struct list_head list; 1638 }; 1639 1640 struct nfs_commit_info; 1641 struct nfs_commit_data; 1642 struct nfs_inode; 1643 struct nfs_commit_completion_ops { 1644 void (*completion) (struct nfs_commit_data *data); 1645 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1646 }; 1647 1648 struct nfs_commit_info { 1649 struct inode *inode; /* Needed for inode->i_lock */ 1650 struct nfs_mds_commit_info *mds; 1651 struct pnfs_ds_commit_info *ds; 1652 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1653 const struct nfs_commit_completion_ops *completion_ops; 1654 }; 1655 1656 struct nfs_commit_data { 1657 struct rpc_task task; 1658 struct inode *inode; 1659 const struct cred *cred; 1660 struct nfs_fattr fattr; 1661 struct nfs_writeverf verf; 1662 struct list_head pages; /* Coalesced requests we wish to flush */ 1663 struct list_head list; /* lists of struct nfs_write_data */ 1664 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1665 struct nfs_commitargs args; /* argument struct */ 1666 struct nfs_commitres res; /* result struct */ 1667 struct nfs_open_context *context; 1668 struct pnfs_layout_segment *lseg; 1669 struct nfs_client *ds_clp; /* pNFS data server */ 1670 int ds_commit_index; 1671 loff_t lwb; 1672 const struct rpc_call_ops *mds_ops; 1673 const struct nfs_commit_completion_ops *completion_ops; 1674 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1675 unsigned long flags; 1676 }; 1677 1678 struct nfs_pgio_completion_ops { 1679 void (*error_cleanup)(struct list_head *head, int); 1680 void (*init_hdr)(struct nfs_pgio_header *hdr); 1681 void (*completion)(struct nfs_pgio_header *hdr); 1682 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1683 }; 1684 1685 struct nfs_unlinkdata { 1686 struct nfs_removeargs args; 1687 struct nfs_removeres res; 1688 struct dentry *dentry; 1689 wait_queue_head_t wq; 1690 const struct cred *cred; 1691 struct nfs_fattr dir_attr; 1692 long timeout; 1693 }; 1694 1695 struct nfs_renamedata { 1696 struct nfs_renameargs args; 1697 struct nfs_renameres res; 1698 const struct cred *cred; 1699 struct inode *old_dir; 1700 struct dentry *old_dentry; 1701 struct nfs_fattr old_fattr; 1702 struct inode *new_dir; 1703 struct dentry *new_dentry; 1704 struct nfs_fattr new_fattr; 1705 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1706 long timeout; 1707 bool cancelled; 1708 }; 1709 1710 struct nfs_access_entry; 1711 struct nfs_client; 1712 struct rpc_timeout; 1713 struct nfs_subversion; 1714 struct nfs_mount_info; 1715 struct nfs_client_initdata; 1716 struct nfs_pageio_descriptor; 1717 struct fs_context; 1718 1719 /* 1720 * RPC procedure vector for NFSv2/NFSv3 demuxing 1721 */ 1722 struct nfs_rpc_ops { 1723 u32 version; /* Protocol version */ 1724 const struct dentry_operations *dentry_ops; 1725 const struct inode_operations *dir_inode_ops; 1726 const struct inode_operations *file_inode_ops; 1727 const struct file_operations *file_ops; 1728 const struct nlmclnt_operations *nlmclnt_ops; 1729 1730 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1731 struct nfs_fsinfo *); 1732 int (*submount) (struct fs_context *, struct nfs_server *); 1733 int (*try_get_tree) (struct fs_context *); 1734 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1735 struct nfs_fattr *, struct inode *); 1736 int (*setattr) (struct dentry *, struct nfs_fattr *, 1737 struct iattr *); 1738 int (*lookup) (struct inode *, struct dentry *, 1739 struct nfs_fh *, struct nfs_fattr *); 1740 int (*lookupp) (struct inode *, struct nfs_fh *, 1741 struct nfs_fattr *); 1742 int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *); 1743 int (*readlink)(struct inode *, struct page *, unsigned int, 1744 unsigned int); 1745 int (*create) (struct inode *, struct dentry *, 1746 struct iattr *, int); 1747 int (*remove) (struct inode *, struct dentry *); 1748 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1749 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1750 int (*unlink_done) (struct rpc_task *, struct inode *); 1751 void (*rename_setup) (struct rpc_message *msg, 1752 struct dentry *old_dentry, 1753 struct dentry *new_dentry); 1754 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1755 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1756 int (*link) (struct inode *, struct inode *, const struct qstr *); 1757 int (*symlink) (struct inode *, struct dentry *, struct page *, 1758 unsigned int, struct iattr *); 1759 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1760 int (*rmdir) (struct inode *, const struct qstr *); 1761 int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); 1762 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1763 dev_t); 1764 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1765 struct nfs_fsstat *); 1766 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1767 struct nfs_fsinfo *); 1768 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1769 struct nfs_pathconf *); 1770 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1771 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1772 int (*pgio_rpc_prepare)(struct rpc_task *, 1773 struct nfs_pgio_header *); 1774 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1775 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1776 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1777 struct rpc_clnt **); 1778 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1779 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1780 struct rpc_clnt **); 1781 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1782 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1783 int (*lock)(struct file *, int, struct file_lock *); 1784 int (*lock_check_bounds)(const struct file_lock *); 1785 void (*clear_acl_cache)(struct inode *); 1786 void (*close_context)(struct nfs_open_context *ctx, int); 1787 struct inode * (*open_context) (struct inode *dir, 1788 struct nfs_open_context *ctx, 1789 int open_flags, 1790 struct iattr *iattr, 1791 int *); 1792 int (*have_delegation)(struct inode *, fmode_t); 1793 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1794 struct nfs_client *(*init_client) (struct nfs_client *, 1795 const struct nfs_client_initdata *); 1796 void (*free_client) (struct nfs_client *); 1797 struct nfs_server *(*create_server)(struct fs_context *); 1798 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1799 struct nfs_fattr *, rpc_authflavor_t); 1800 int (*discover_trunking)(struct nfs_server *, struct nfs_fh *); 1801 }; 1802 1803 /* 1804 * NFS_CALL(getattr, inode, (fattr)); 1805 * into 1806 * NFS_PROTO(inode)->getattr(fattr); 1807 */ 1808 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1809 1810 /* 1811 * Function vectors etc. for the NFS client 1812 */ 1813 extern const struct nfs_rpc_ops nfs_v2_clientops; 1814 extern const struct nfs_rpc_ops nfs_v3_clientops; 1815 extern const struct nfs_rpc_ops nfs_v4_clientops; 1816 extern const struct rpc_version nfs_version2; 1817 extern const struct rpc_version nfs_version3; 1818 extern const struct rpc_version nfs_version4; 1819 1820 extern const struct rpc_version nfsacl_version3; 1821 extern const struct rpc_program nfsacl_program; 1822 1823 #endif 1824