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 const char * name; 750 unsigned int len; 751 int eof; 752 struct nfs_fh * fh; 753 struct nfs_fattr * fattr; 754 unsigned char d_type; 755 struct nfs_server * server; 756 }; 757 758 struct nfs_readdir_arg { 759 struct dentry *dentry; 760 const struct cred *cred; 761 __be32 *verf; 762 u64 cookie; 763 struct page **pages; 764 unsigned int page_len; 765 bool plus; 766 }; 767 768 struct nfs_readdir_res { 769 __be32 *verf; 770 }; 771 772 /* 773 * The following types are for NFSv2 only. 774 */ 775 struct nfs_sattrargs { 776 struct nfs_fh * fh; 777 struct iattr * sattr; 778 }; 779 780 struct nfs_diropargs { 781 struct nfs_fh * fh; 782 const char * name; 783 unsigned int len; 784 }; 785 786 struct nfs_createargs { 787 struct nfs_fh * fh; 788 const char * name; 789 unsigned int len; 790 struct iattr * sattr; 791 }; 792 793 struct nfs_setattrargs { 794 struct nfs4_sequence_args seq_args; 795 struct nfs_fh * fh; 796 nfs4_stateid stateid; 797 struct iattr * iap; 798 const struct nfs_server * server; /* Needed for name mapping */ 799 const u32 * bitmask; 800 const struct nfs4_label *label; 801 }; 802 803 struct nfs_setaclargs { 804 struct nfs4_sequence_args seq_args; 805 struct nfs_fh * fh; 806 size_t acl_len; 807 struct page ** acl_pages; 808 }; 809 810 struct nfs_setaclres { 811 struct nfs4_sequence_res seq_res; 812 }; 813 814 struct nfs_getaclargs { 815 struct nfs4_sequence_args seq_args; 816 struct nfs_fh * fh; 817 size_t acl_len; 818 struct page ** acl_pages; 819 }; 820 821 /* getxattr ACL interface flags */ 822 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 823 struct nfs_getaclres { 824 struct nfs4_sequence_res seq_res; 825 size_t acl_len; 826 size_t acl_data_offset; 827 int acl_flags; 828 struct page * acl_scratch; 829 }; 830 831 struct nfs_setattrres { 832 struct nfs4_sequence_res seq_res; 833 struct nfs_fattr * fattr; 834 const struct nfs_server * server; 835 }; 836 837 struct nfs_linkargs { 838 struct nfs_fh * fromfh; 839 struct nfs_fh * tofh; 840 const char * toname; 841 unsigned int tolen; 842 }; 843 844 struct nfs_symlinkargs { 845 struct nfs_fh * fromfh; 846 const char * fromname; 847 unsigned int fromlen; 848 struct page ** pages; 849 unsigned int pathlen; 850 struct iattr * sattr; 851 }; 852 853 struct nfs_readdirargs { 854 struct nfs_fh * fh; 855 __u32 cookie; 856 unsigned int count; 857 struct page ** pages; 858 }; 859 860 struct nfs3_getaclargs { 861 struct nfs_fh * fh; 862 int mask; 863 struct page ** pages; 864 }; 865 866 struct nfs3_setaclargs { 867 struct inode * inode; 868 int mask; 869 struct posix_acl * acl_access; 870 struct posix_acl * acl_default; 871 size_t len; 872 unsigned int npages; 873 struct page ** pages; 874 }; 875 876 struct nfs_diropok { 877 struct nfs_fh * fh; 878 struct nfs_fattr * fattr; 879 }; 880 881 struct nfs_readlinkargs { 882 struct nfs_fh * fh; 883 unsigned int pgbase; 884 unsigned int pglen; 885 struct page ** pages; 886 }; 887 888 struct nfs3_sattrargs { 889 struct nfs_fh * fh; 890 struct iattr * sattr; 891 unsigned int guard; 892 struct timespec64 guardtime; 893 }; 894 895 struct nfs3_diropargs { 896 struct nfs_fh * fh; 897 const char * name; 898 unsigned int len; 899 }; 900 901 struct nfs3_accessargs { 902 struct nfs_fh * fh; 903 __u32 access; 904 }; 905 906 struct nfs3_createargs { 907 struct nfs_fh * fh; 908 const char * name; 909 unsigned int len; 910 struct iattr * sattr; 911 enum nfs3_createmode createmode; 912 __be32 verifier[2]; 913 }; 914 915 struct nfs3_mkdirargs { 916 struct nfs_fh * fh; 917 const char * name; 918 unsigned int len; 919 struct iattr * sattr; 920 }; 921 922 struct nfs3_symlinkargs { 923 struct nfs_fh * fromfh; 924 const char * fromname; 925 unsigned int fromlen; 926 struct page ** pages; 927 unsigned int pathlen; 928 struct iattr * sattr; 929 }; 930 931 struct nfs3_mknodargs { 932 struct nfs_fh * fh; 933 const char * name; 934 unsigned int len; 935 enum nfs3_ftype type; 936 struct iattr * sattr; 937 dev_t rdev; 938 }; 939 940 struct nfs3_linkargs { 941 struct nfs_fh * fromfh; 942 struct nfs_fh * tofh; 943 const char * toname; 944 unsigned int tolen; 945 }; 946 947 struct nfs3_readdirargs { 948 struct nfs_fh * fh; 949 __u64 cookie; 950 __be32 verf[2]; 951 bool plus; 952 unsigned int count; 953 struct page ** pages; 954 }; 955 956 struct nfs3_diropres { 957 struct nfs_fattr * dir_attr; 958 struct nfs_fh * fh; 959 struct nfs_fattr * fattr; 960 }; 961 962 struct nfs3_accessres { 963 struct nfs_fattr * fattr; 964 __u32 access; 965 }; 966 967 struct nfs3_readlinkargs { 968 struct nfs_fh * fh; 969 unsigned int pgbase; 970 unsigned int pglen; 971 struct page ** pages; 972 }; 973 974 struct nfs3_linkres { 975 struct nfs_fattr * dir_attr; 976 struct nfs_fattr * fattr; 977 }; 978 979 struct nfs3_readdirres { 980 struct nfs_fattr * dir_attr; 981 __be32 * verf; 982 bool plus; 983 }; 984 985 struct nfs3_getaclres { 986 struct nfs_fattr * fattr; 987 int mask; 988 unsigned int acl_access_count; 989 unsigned int acl_default_count; 990 struct posix_acl * acl_access; 991 struct posix_acl * acl_default; 992 }; 993 994 #if IS_ENABLED(CONFIG_NFS_V4) 995 996 typedef u64 clientid4; 997 998 struct nfs4_accessargs { 999 struct nfs4_sequence_args seq_args; 1000 const struct nfs_fh * fh; 1001 const u32 * bitmask; 1002 u32 access; 1003 }; 1004 1005 struct nfs4_accessres { 1006 struct nfs4_sequence_res seq_res; 1007 const struct nfs_server * server; 1008 struct nfs_fattr * fattr; 1009 u32 supported; 1010 u32 access; 1011 }; 1012 1013 struct nfs4_create_arg { 1014 struct nfs4_sequence_args seq_args; 1015 u32 ftype; 1016 union { 1017 struct { 1018 struct page ** pages; 1019 unsigned int len; 1020 } symlink; /* NF4LNK */ 1021 struct { 1022 u32 specdata1; 1023 u32 specdata2; 1024 } device; /* NF4BLK, NF4CHR */ 1025 } u; 1026 const struct qstr * name; 1027 const struct nfs_server * server; 1028 const struct iattr * attrs; 1029 const struct nfs_fh * dir_fh; 1030 const u32 * bitmask; 1031 const struct nfs4_label *label; 1032 umode_t umask; 1033 }; 1034 1035 struct nfs4_create_res { 1036 struct nfs4_sequence_res seq_res; 1037 const struct nfs_server * server; 1038 struct nfs_fh * fh; 1039 struct nfs_fattr * fattr; 1040 struct nfs4_change_info dir_cinfo; 1041 }; 1042 1043 struct nfs4_fsinfo_arg { 1044 struct nfs4_sequence_args seq_args; 1045 const struct nfs_fh * fh; 1046 const u32 * bitmask; 1047 }; 1048 1049 struct nfs4_fsinfo_res { 1050 struct nfs4_sequence_res seq_res; 1051 struct nfs_fsinfo *fsinfo; 1052 }; 1053 1054 struct nfs4_getattr_arg { 1055 struct nfs4_sequence_args seq_args; 1056 const struct nfs_fh * fh; 1057 const u32 * bitmask; 1058 }; 1059 1060 struct nfs4_getattr_res { 1061 struct nfs4_sequence_res seq_res; 1062 const struct nfs_server * server; 1063 struct nfs_fattr * fattr; 1064 }; 1065 1066 struct nfs4_link_arg { 1067 struct nfs4_sequence_args seq_args; 1068 const struct nfs_fh * fh; 1069 const struct nfs_fh * dir_fh; 1070 const struct qstr * name; 1071 const u32 * bitmask; 1072 }; 1073 1074 struct nfs4_link_res { 1075 struct nfs4_sequence_res seq_res; 1076 const struct nfs_server * server; 1077 struct nfs_fattr * fattr; 1078 struct nfs4_change_info cinfo; 1079 struct nfs_fattr * dir_attr; 1080 }; 1081 1082 struct nfs4_lookup_arg { 1083 struct nfs4_sequence_args seq_args; 1084 const struct nfs_fh * dir_fh; 1085 const struct qstr * name; 1086 const u32 * bitmask; 1087 }; 1088 1089 struct nfs4_lookup_res { 1090 struct nfs4_sequence_res seq_res; 1091 const struct nfs_server * server; 1092 struct nfs_fattr * fattr; 1093 struct nfs_fh * fh; 1094 }; 1095 1096 struct nfs4_lookupp_arg { 1097 struct nfs4_sequence_args seq_args; 1098 const struct nfs_fh *fh; 1099 const u32 *bitmask; 1100 }; 1101 1102 struct nfs4_lookupp_res { 1103 struct nfs4_sequence_res seq_res; 1104 const struct nfs_server *server; 1105 struct nfs_fattr *fattr; 1106 struct nfs_fh *fh; 1107 }; 1108 1109 struct nfs4_lookup_root_arg { 1110 struct nfs4_sequence_args seq_args; 1111 const u32 * bitmask; 1112 }; 1113 1114 struct nfs4_pathconf_arg { 1115 struct nfs4_sequence_args seq_args; 1116 const struct nfs_fh * fh; 1117 const u32 * bitmask; 1118 }; 1119 1120 struct nfs4_pathconf_res { 1121 struct nfs4_sequence_res seq_res; 1122 struct nfs_pathconf *pathconf; 1123 }; 1124 1125 struct nfs4_readdir_arg { 1126 struct nfs4_sequence_args seq_args; 1127 const struct nfs_fh * fh; 1128 u64 cookie; 1129 nfs4_verifier verifier; 1130 u32 count; 1131 struct page ** pages; /* zero-copy data */ 1132 unsigned int pgbase; /* zero-copy data */ 1133 const u32 * bitmask; 1134 bool plus; 1135 }; 1136 1137 struct nfs4_readdir_res { 1138 struct nfs4_sequence_res seq_res; 1139 nfs4_verifier verifier; 1140 unsigned int pgbase; 1141 }; 1142 1143 struct nfs4_readlink { 1144 struct nfs4_sequence_args seq_args; 1145 const struct nfs_fh * fh; 1146 unsigned int pgbase; 1147 unsigned int pglen; /* zero-copy data */ 1148 struct page ** pages; /* zero-copy data */ 1149 }; 1150 1151 struct nfs4_readlink_res { 1152 struct nfs4_sequence_res seq_res; 1153 }; 1154 1155 struct nfs4_setclientid { 1156 const nfs4_verifier * sc_verifier; 1157 u32 sc_prog; 1158 unsigned int sc_netid_len; 1159 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1160 unsigned int sc_uaddr_len; 1161 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1162 struct nfs_client *sc_clnt; 1163 struct rpc_cred *sc_cred; 1164 }; 1165 1166 struct nfs4_setclientid_res { 1167 u64 clientid; 1168 nfs4_verifier confirm; 1169 }; 1170 1171 struct nfs4_statfs_arg { 1172 struct nfs4_sequence_args seq_args; 1173 const struct nfs_fh * fh; 1174 const u32 * bitmask; 1175 }; 1176 1177 struct nfs4_statfs_res { 1178 struct nfs4_sequence_res seq_res; 1179 struct nfs_fsstat *fsstat; 1180 }; 1181 1182 struct nfs4_server_caps_arg { 1183 struct nfs4_sequence_args seq_args; 1184 struct nfs_fh *fhandle; 1185 const u32 * bitmask; 1186 }; 1187 1188 struct nfs4_server_caps_res { 1189 struct nfs4_sequence_res seq_res; 1190 u32 attr_bitmask[3]; 1191 u32 exclcreat_bitmask[3]; 1192 u32 acl_bitmask; 1193 u32 has_links; 1194 u32 has_symlinks; 1195 u32 fh_expire_type; 1196 u32 case_insensitive; 1197 u32 case_preserving; 1198 }; 1199 1200 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1201 struct nfs4_pathname { 1202 unsigned int ncomponents; 1203 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1204 }; 1205 1206 #define NFS4_FS_LOCATION_MAXSERVERS 10 1207 struct nfs4_fs_location { 1208 unsigned int nservers; 1209 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1210 struct nfs4_pathname rootpath; 1211 }; 1212 1213 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1214 struct nfs4_fs_locations { 1215 struct nfs_fattr fattr; 1216 const struct nfs_server *server; 1217 struct nfs4_pathname fs_path; 1218 int nlocations; 1219 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1220 }; 1221 1222 struct nfs4_fs_locations_arg { 1223 struct nfs4_sequence_args seq_args; 1224 const struct nfs_fh *dir_fh; 1225 const struct nfs_fh *fh; 1226 const struct qstr *name; 1227 struct page *page; 1228 const u32 *bitmask; 1229 clientid4 clientid; 1230 unsigned char migration:1, renew:1; 1231 }; 1232 1233 struct nfs4_fs_locations_res { 1234 struct nfs4_sequence_res seq_res; 1235 struct nfs4_fs_locations *fs_locations; 1236 unsigned char migration:1, renew:1; 1237 }; 1238 1239 struct nfs4_secinfo4 { 1240 u32 flavor; 1241 struct rpcsec_gss_info flavor_info; 1242 }; 1243 1244 struct nfs4_secinfo_flavors { 1245 unsigned int num_flavors; 1246 struct nfs4_secinfo4 flavors[]; 1247 }; 1248 1249 struct nfs4_secinfo_arg { 1250 struct nfs4_sequence_args seq_args; 1251 const struct nfs_fh *dir_fh; 1252 const struct qstr *name; 1253 }; 1254 1255 struct nfs4_secinfo_res { 1256 struct nfs4_sequence_res seq_res; 1257 struct nfs4_secinfo_flavors *flavors; 1258 }; 1259 1260 struct nfs4_fsid_present_arg { 1261 struct nfs4_sequence_args seq_args; 1262 const struct nfs_fh *fh; 1263 clientid4 clientid; 1264 unsigned char renew:1; 1265 }; 1266 1267 struct nfs4_fsid_present_res { 1268 struct nfs4_sequence_res seq_res; 1269 struct nfs_fh *fh; 1270 unsigned char renew:1; 1271 }; 1272 1273 #endif /* CONFIG_NFS_V4 */ 1274 1275 struct nfstime4 { 1276 u64 seconds; 1277 u32 nseconds; 1278 }; 1279 1280 #ifdef CONFIG_NFS_V4_1 1281 1282 struct pnfs_commit_bucket { 1283 struct list_head written; 1284 struct list_head committing; 1285 struct pnfs_layout_segment *lseg; 1286 struct nfs_writeverf direct_verf; 1287 }; 1288 1289 struct pnfs_commit_array { 1290 struct list_head cinfo_list; 1291 struct list_head lseg_list; 1292 struct pnfs_layout_segment *lseg; 1293 struct rcu_head rcu; 1294 refcount_t refcount; 1295 unsigned int nbuckets; 1296 struct pnfs_commit_bucket buckets[]; 1297 }; 1298 1299 struct pnfs_ds_commit_info { 1300 struct list_head commits; 1301 unsigned int nwritten; 1302 unsigned int ncommitting; 1303 const struct pnfs_commit_ops *ops; 1304 }; 1305 1306 struct nfs41_state_protection { 1307 u32 how; 1308 struct nfs4_op_map enforce; 1309 struct nfs4_op_map allow; 1310 }; 1311 1312 struct nfs41_exchange_id_args { 1313 struct nfs_client *client; 1314 nfs4_verifier verifier; 1315 u32 flags; 1316 struct nfs41_state_protection state_protect; 1317 }; 1318 1319 struct nfs41_server_owner { 1320 uint64_t minor_id; 1321 uint32_t major_id_sz; 1322 char major_id[NFS4_OPAQUE_LIMIT]; 1323 }; 1324 1325 struct nfs41_server_scope { 1326 uint32_t server_scope_sz; 1327 char server_scope[NFS4_OPAQUE_LIMIT]; 1328 }; 1329 1330 struct nfs41_impl_id { 1331 char domain[NFS4_OPAQUE_LIMIT + 1]; 1332 char name[NFS4_OPAQUE_LIMIT + 1]; 1333 struct nfstime4 date; 1334 }; 1335 1336 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1337 struct nfs41_bind_conn_to_session_args { 1338 struct nfs_client *client; 1339 struct nfs4_sessionid sessionid; 1340 u32 dir; 1341 bool use_conn_in_rdma_mode; 1342 int retries; 1343 }; 1344 1345 struct nfs41_bind_conn_to_session_res { 1346 struct nfs4_sessionid sessionid; 1347 u32 dir; 1348 bool use_conn_in_rdma_mode; 1349 }; 1350 1351 struct nfs41_exchange_id_res { 1352 u64 clientid; 1353 u32 seqid; 1354 u32 flags; 1355 struct nfs41_server_owner *server_owner; 1356 struct nfs41_server_scope *server_scope; 1357 struct nfs41_impl_id *impl_id; 1358 struct nfs41_state_protection state_protect; 1359 }; 1360 1361 struct nfs41_create_session_args { 1362 struct nfs_client *client; 1363 u64 clientid; 1364 uint32_t seqid; 1365 uint32_t flags; 1366 uint32_t cb_program; 1367 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1368 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1369 }; 1370 1371 struct nfs41_create_session_res { 1372 struct nfs4_sessionid sessionid; 1373 uint32_t seqid; 1374 uint32_t flags; 1375 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1376 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1377 }; 1378 1379 struct nfs41_reclaim_complete_args { 1380 struct nfs4_sequence_args seq_args; 1381 /* In the future extend to include curr_fh for use with migration */ 1382 unsigned char one_fs:1; 1383 }; 1384 1385 struct nfs41_reclaim_complete_res { 1386 struct nfs4_sequence_res seq_res; 1387 }; 1388 1389 #define SECINFO_STYLE_CURRENT_FH 0 1390 #define SECINFO_STYLE_PARENT 1 1391 struct nfs41_secinfo_no_name_args { 1392 struct nfs4_sequence_args seq_args; 1393 int style; 1394 }; 1395 1396 struct nfs41_test_stateid_args { 1397 struct nfs4_sequence_args seq_args; 1398 nfs4_stateid *stateid; 1399 }; 1400 1401 struct nfs41_test_stateid_res { 1402 struct nfs4_sequence_res seq_res; 1403 unsigned int status; 1404 }; 1405 1406 struct nfs41_free_stateid_args { 1407 struct nfs4_sequence_args seq_args; 1408 nfs4_stateid stateid; 1409 }; 1410 1411 struct nfs41_free_stateid_res { 1412 struct nfs4_sequence_res seq_res; 1413 unsigned int status; 1414 }; 1415 1416 #else 1417 1418 struct pnfs_ds_commit_info { 1419 }; 1420 1421 #endif /* CONFIG_NFS_V4_1 */ 1422 1423 #ifdef CONFIG_NFS_V4_2 1424 struct nfs42_falloc_args { 1425 struct nfs4_sequence_args seq_args; 1426 1427 struct nfs_fh *falloc_fh; 1428 nfs4_stateid falloc_stateid; 1429 u64 falloc_offset; 1430 u64 falloc_length; 1431 const u32 *falloc_bitmask; 1432 }; 1433 1434 struct nfs42_falloc_res { 1435 struct nfs4_sequence_res seq_res; 1436 unsigned int status; 1437 1438 struct nfs_fattr *falloc_fattr; 1439 const struct nfs_server *falloc_server; 1440 }; 1441 1442 struct nfs42_copy_args { 1443 struct nfs4_sequence_args seq_args; 1444 1445 struct nfs_fh *src_fh; 1446 nfs4_stateid src_stateid; 1447 u64 src_pos; 1448 1449 struct nfs_fh *dst_fh; 1450 nfs4_stateid dst_stateid; 1451 u64 dst_pos; 1452 1453 u64 count; 1454 bool sync; 1455 struct nl4_server *cp_src; 1456 }; 1457 1458 struct nfs42_write_res { 1459 nfs4_stateid stateid; 1460 u64 count; 1461 struct nfs_writeverf verifier; 1462 }; 1463 1464 struct nfs42_copy_res { 1465 struct nfs4_sequence_res seq_res; 1466 struct nfs42_write_res write_res; 1467 bool consecutive; 1468 bool synchronous; 1469 struct nfs_commitres commit_res; 1470 }; 1471 1472 struct nfs42_offload_status_args { 1473 struct nfs4_sequence_args osa_seq_args; 1474 struct nfs_fh *osa_src_fh; 1475 nfs4_stateid osa_stateid; 1476 }; 1477 1478 struct nfs42_offload_status_res { 1479 struct nfs4_sequence_res osr_seq_res; 1480 uint64_t osr_count; 1481 int osr_status; 1482 }; 1483 1484 struct nfs42_copy_notify_args { 1485 struct nfs4_sequence_args cna_seq_args; 1486 1487 struct nfs_fh *cna_src_fh; 1488 nfs4_stateid cna_src_stateid; 1489 struct nl4_server cna_dst; 1490 }; 1491 1492 struct nfs42_copy_notify_res { 1493 struct nfs4_sequence_res cnr_seq_res; 1494 1495 struct nfstime4 cnr_lease_time; 1496 nfs4_stateid cnr_stateid; 1497 struct nl4_server cnr_src; 1498 }; 1499 1500 struct nfs42_seek_args { 1501 struct nfs4_sequence_args seq_args; 1502 1503 struct nfs_fh *sa_fh; 1504 nfs4_stateid sa_stateid; 1505 u64 sa_offset; 1506 u32 sa_what; 1507 }; 1508 1509 struct nfs42_seek_res { 1510 struct nfs4_sequence_res seq_res; 1511 unsigned int status; 1512 1513 u32 sr_eof; 1514 u64 sr_offset; 1515 }; 1516 1517 struct nfs42_setxattrargs { 1518 struct nfs4_sequence_args seq_args; 1519 struct nfs_fh *fh; 1520 const char *xattr_name; 1521 u32 xattr_flags; 1522 size_t xattr_len; 1523 struct page **xattr_pages; 1524 }; 1525 1526 struct nfs42_setxattrres { 1527 struct nfs4_sequence_res seq_res; 1528 struct nfs4_change_info cinfo; 1529 }; 1530 1531 struct nfs42_getxattrargs { 1532 struct nfs4_sequence_args seq_args; 1533 struct nfs_fh *fh; 1534 const char *xattr_name; 1535 size_t xattr_len; 1536 struct page **xattr_pages; 1537 }; 1538 1539 struct nfs42_getxattrres { 1540 struct nfs4_sequence_res seq_res; 1541 size_t xattr_len; 1542 }; 1543 1544 struct nfs42_listxattrsargs { 1545 struct nfs4_sequence_args seq_args; 1546 struct nfs_fh *fh; 1547 u32 count; 1548 u64 cookie; 1549 struct page **xattr_pages; 1550 }; 1551 1552 struct nfs42_listxattrsres { 1553 struct nfs4_sequence_res seq_res; 1554 struct page *scratch; 1555 void *xattr_buf; 1556 size_t xattr_len; 1557 u64 cookie; 1558 bool eof; 1559 size_t copied; 1560 }; 1561 1562 struct nfs42_removexattrargs { 1563 struct nfs4_sequence_args seq_args; 1564 struct nfs_fh *fh; 1565 const char *xattr_name; 1566 }; 1567 1568 struct nfs42_removexattrres { 1569 struct nfs4_sequence_res seq_res; 1570 struct nfs4_change_info cinfo; 1571 }; 1572 1573 #endif /* CONFIG_NFS_V4_2 */ 1574 1575 struct nfs_page; 1576 1577 #define NFS_PAGEVEC_SIZE (8U) 1578 1579 struct nfs_page_array { 1580 struct page **pagevec; 1581 unsigned int npages; /* Max length of pagevec */ 1582 struct page *page_array[NFS_PAGEVEC_SIZE]; 1583 }; 1584 1585 /* used as flag bits in nfs_pgio_header */ 1586 enum { 1587 NFS_IOHDR_ERROR = 0, 1588 NFS_IOHDR_EOF, 1589 NFS_IOHDR_REDO, 1590 NFS_IOHDR_STAT, 1591 NFS_IOHDR_RESEND_PNFS, 1592 NFS_IOHDR_RESEND_MDS, 1593 }; 1594 1595 struct nfs_io_completion; 1596 struct nfs_pgio_header { 1597 struct inode *inode; 1598 const struct cred *cred; 1599 struct list_head pages; 1600 struct nfs_page *req; 1601 struct nfs_writeverf verf; /* Used for writes */ 1602 fmode_t rw_mode; 1603 struct pnfs_layout_segment *lseg; 1604 loff_t io_start; 1605 const struct rpc_call_ops *mds_ops; 1606 void (*release) (struct nfs_pgio_header *hdr); 1607 const struct nfs_pgio_completion_ops *completion_ops; 1608 const struct nfs_rw_ops *rw_ops; 1609 struct nfs_io_completion *io_completion; 1610 struct nfs_direct_req *dreq; 1611 1612 int pnfs_error; 1613 int error; /* merge with pnfs_error */ 1614 unsigned int good_bytes; /* boundary of good data */ 1615 unsigned long flags; 1616 1617 /* 1618 * rpc data 1619 */ 1620 struct rpc_task task; 1621 struct nfs_fattr fattr; 1622 struct nfs_pgio_args args; /* argument struct */ 1623 struct nfs_pgio_res res; /* result struct */ 1624 unsigned long timestamp; /* For lease renewal */ 1625 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1626 __u64 mds_offset; /* Filelayout dense stripe */ 1627 struct nfs_page_array page_array; 1628 struct nfs_client *ds_clp; /* pNFS data server */ 1629 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1630 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1631 }; 1632 1633 struct nfs_mds_commit_info { 1634 atomic_t rpcs_out; 1635 atomic_long_t ncommit; 1636 struct list_head list; 1637 }; 1638 1639 struct nfs_commit_info; 1640 struct nfs_commit_data; 1641 struct nfs_inode; 1642 struct nfs_commit_completion_ops { 1643 void (*completion) (struct nfs_commit_data *data); 1644 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1645 }; 1646 1647 struct nfs_commit_info { 1648 struct inode *inode; /* Needed for inode->i_lock */ 1649 struct nfs_mds_commit_info *mds; 1650 struct pnfs_ds_commit_info *ds; 1651 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1652 const struct nfs_commit_completion_ops *completion_ops; 1653 }; 1654 1655 struct nfs_commit_data { 1656 struct rpc_task task; 1657 struct inode *inode; 1658 const struct cred *cred; 1659 struct nfs_fattr fattr; 1660 struct nfs_writeverf verf; 1661 struct list_head pages; /* Coalesced requests we wish to flush */ 1662 struct list_head list; /* lists of struct nfs_write_data */ 1663 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1664 struct nfs_commitargs args; /* argument struct */ 1665 struct nfs_commitres res; /* result struct */ 1666 struct nfs_open_context *context; 1667 struct pnfs_layout_segment *lseg; 1668 struct nfs_client *ds_clp; /* pNFS data server */ 1669 int ds_commit_index; 1670 loff_t lwb; 1671 const struct rpc_call_ops *mds_ops; 1672 const struct nfs_commit_completion_ops *completion_ops; 1673 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1674 unsigned long flags; 1675 }; 1676 1677 struct nfs_pgio_completion_ops { 1678 void (*error_cleanup)(struct list_head *head, int); 1679 void (*init_hdr)(struct nfs_pgio_header *hdr); 1680 void (*completion)(struct nfs_pgio_header *hdr); 1681 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1682 }; 1683 1684 struct nfs_unlinkdata { 1685 struct nfs_removeargs args; 1686 struct nfs_removeres res; 1687 struct dentry *dentry; 1688 wait_queue_head_t wq; 1689 const struct cred *cred; 1690 struct nfs_fattr dir_attr; 1691 long timeout; 1692 }; 1693 1694 struct nfs_renamedata { 1695 struct nfs_renameargs args; 1696 struct nfs_renameres res; 1697 struct rpc_task task; 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 void (*enable_swap)(struct inode *inode); 1802 void (*disable_swap)(struct inode *inode); 1803 }; 1804 1805 /* 1806 * NFS_CALL(getattr, inode, (fattr)); 1807 * into 1808 * NFS_PROTO(inode)->getattr(fattr); 1809 */ 1810 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1811 1812 /* 1813 * Function vectors etc. for the NFS client 1814 */ 1815 extern const struct nfs_rpc_ops nfs_v2_clientops; 1816 extern const struct nfs_rpc_ops nfs_v3_clientops; 1817 extern const struct nfs_rpc_ops nfs_v4_clientops; 1818 extern const struct rpc_version nfs_version2; 1819 extern const struct rpc_version nfs_version3; 1820 extern const struct rpc_version nfs_version4; 1821 1822 extern const struct rpc_version nfsacl_version3; 1823 extern const struct rpc_program nfsacl_program; 1824 1825 #endif 1826