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 enum nfs4_acl_type { 804 NFS4ACL_NONE = 0, 805 NFS4ACL_ACL, 806 NFS4ACL_DACL, 807 NFS4ACL_SACL, 808 }; 809 810 struct nfs_setaclargs { 811 struct nfs4_sequence_args seq_args; 812 struct nfs_fh * fh; 813 enum nfs4_acl_type acl_type; 814 size_t acl_len; 815 struct page ** acl_pages; 816 }; 817 818 struct nfs_setaclres { 819 struct nfs4_sequence_res seq_res; 820 }; 821 822 struct nfs_getaclargs { 823 struct nfs4_sequence_args seq_args; 824 struct nfs_fh * fh; 825 enum nfs4_acl_type acl_type; 826 size_t acl_len; 827 struct page ** acl_pages; 828 }; 829 830 /* getxattr ACL interface flags */ 831 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 832 struct nfs_getaclres { 833 struct nfs4_sequence_res seq_res; 834 enum nfs4_acl_type acl_type; 835 size_t acl_len; 836 size_t acl_data_offset; 837 int acl_flags; 838 struct page * acl_scratch; 839 }; 840 841 struct nfs_setattrres { 842 struct nfs4_sequence_res seq_res; 843 struct nfs_fattr * fattr; 844 const struct nfs_server * server; 845 }; 846 847 struct nfs_linkargs { 848 struct nfs_fh * fromfh; 849 struct nfs_fh * tofh; 850 const char * toname; 851 unsigned int tolen; 852 }; 853 854 struct nfs_symlinkargs { 855 struct nfs_fh * fromfh; 856 const char * fromname; 857 unsigned int fromlen; 858 struct page ** pages; 859 unsigned int pathlen; 860 struct iattr * sattr; 861 }; 862 863 struct nfs_readdirargs { 864 struct nfs_fh * fh; 865 __u32 cookie; 866 unsigned int count; 867 struct page ** pages; 868 }; 869 870 struct nfs3_getaclargs { 871 struct nfs_fh * fh; 872 int mask; 873 struct page ** pages; 874 }; 875 876 struct nfs3_setaclargs { 877 struct inode * inode; 878 int mask; 879 struct posix_acl * acl_access; 880 struct posix_acl * acl_default; 881 size_t len; 882 unsigned int npages; 883 struct page ** pages; 884 }; 885 886 struct nfs_diropok { 887 struct nfs_fh * fh; 888 struct nfs_fattr * fattr; 889 }; 890 891 struct nfs_readlinkargs { 892 struct nfs_fh * fh; 893 unsigned int pgbase; 894 unsigned int pglen; 895 struct page ** pages; 896 }; 897 898 struct nfs3_sattrargs { 899 struct nfs_fh * fh; 900 struct iattr * sattr; 901 unsigned int guard; 902 struct timespec64 guardtime; 903 }; 904 905 struct nfs3_diropargs { 906 struct nfs_fh * fh; 907 const char * name; 908 unsigned int len; 909 }; 910 911 struct nfs3_accessargs { 912 struct nfs_fh * fh; 913 __u32 access; 914 }; 915 916 struct nfs3_createargs { 917 struct nfs_fh * fh; 918 const char * name; 919 unsigned int len; 920 struct iattr * sattr; 921 enum nfs3_createmode createmode; 922 __be32 verifier[2]; 923 }; 924 925 struct nfs3_mkdirargs { 926 struct nfs_fh * fh; 927 const char * name; 928 unsigned int len; 929 struct iattr * sattr; 930 }; 931 932 struct nfs3_symlinkargs { 933 struct nfs_fh * fromfh; 934 const char * fromname; 935 unsigned int fromlen; 936 struct page ** pages; 937 unsigned int pathlen; 938 struct iattr * sattr; 939 }; 940 941 struct nfs3_mknodargs { 942 struct nfs_fh * fh; 943 const char * name; 944 unsigned int len; 945 enum nfs3_ftype type; 946 struct iattr * sattr; 947 dev_t rdev; 948 }; 949 950 struct nfs3_linkargs { 951 struct nfs_fh * fromfh; 952 struct nfs_fh * tofh; 953 const char * toname; 954 unsigned int tolen; 955 }; 956 957 struct nfs3_readdirargs { 958 struct nfs_fh * fh; 959 __u64 cookie; 960 __be32 verf[2]; 961 bool plus; 962 unsigned int count; 963 struct page ** pages; 964 }; 965 966 struct nfs3_diropres { 967 struct nfs_fattr * dir_attr; 968 struct nfs_fh * fh; 969 struct nfs_fattr * fattr; 970 }; 971 972 struct nfs3_accessres { 973 struct nfs_fattr * fattr; 974 __u32 access; 975 }; 976 977 struct nfs3_readlinkargs { 978 struct nfs_fh * fh; 979 unsigned int pgbase; 980 unsigned int pglen; 981 struct page ** pages; 982 }; 983 984 struct nfs3_linkres { 985 struct nfs_fattr * dir_attr; 986 struct nfs_fattr * fattr; 987 }; 988 989 struct nfs3_readdirres { 990 struct nfs_fattr * dir_attr; 991 __be32 * verf; 992 bool plus; 993 }; 994 995 struct nfs3_getaclres { 996 struct nfs_fattr * fattr; 997 int mask; 998 unsigned int acl_access_count; 999 unsigned int acl_default_count; 1000 struct posix_acl * acl_access; 1001 struct posix_acl * acl_default; 1002 }; 1003 1004 #if IS_ENABLED(CONFIG_NFS_V4) 1005 1006 typedef u64 clientid4; 1007 1008 struct nfs4_accessargs { 1009 struct nfs4_sequence_args seq_args; 1010 const struct nfs_fh * fh; 1011 const u32 * bitmask; 1012 u32 access; 1013 }; 1014 1015 struct nfs4_accessres { 1016 struct nfs4_sequence_res seq_res; 1017 const struct nfs_server * server; 1018 struct nfs_fattr * fattr; 1019 u32 supported; 1020 u32 access; 1021 }; 1022 1023 struct nfs4_create_arg { 1024 struct nfs4_sequence_args seq_args; 1025 u32 ftype; 1026 union { 1027 struct { 1028 struct page ** pages; 1029 unsigned int len; 1030 } symlink; /* NF4LNK */ 1031 struct { 1032 u32 specdata1; 1033 u32 specdata2; 1034 } device; /* NF4BLK, NF4CHR */ 1035 } u; 1036 const struct qstr * name; 1037 const struct nfs_server * server; 1038 const struct iattr * attrs; 1039 const struct nfs_fh * dir_fh; 1040 const u32 * bitmask; 1041 const struct nfs4_label *label; 1042 umode_t umask; 1043 }; 1044 1045 struct nfs4_create_res { 1046 struct nfs4_sequence_res seq_res; 1047 const struct nfs_server * server; 1048 struct nfs_fh * fh; 1049 struct nfs_fattr * fattr; 1050 struct nfs4_change_info dir_cinfo; 1051 }; 1052 1053 struct nfs4_fsinfo_arg { 1054 struct nfs4_sequence_args seq_args; 1055 const struct nfs_fh * fh; 1056 const u32 * bitmask; 1057 }; 1058 1059 struct nfs4_fsinfo_res { 1060 struct nfs4_sequence_res seq_res; 1061 struct nfs_fsinfo *fsinfo; 1062 }; 1063 1064 struct nfs4_getattr_arg { 1065 struct nfs4_sequence_args seq_args; 1066 const struct nfs_fh * fh; 1067 const u32 * bitmask; 1068 }; 1069 1070 struct nfs4_getattr_res { 1071 struct nfs4_sequence_res seq_res; 1072 const struct nfs_server * server; 1073 struct nfs_fattr * fattr; 1074 }; 1075 1076 struct nfs4_link_arg { 1077 struct nfs4_sequence_args seq_args; 1078 const struct nfs_fh * fh; 1079 const struct nfs_fh * dir_fh; 1080 const struct qstr * name; 1081 const u32 * bitmask; 1082 }; 1083 1084 struct nfs4_link_res { 1085 struct nfs4_sequence_res seq_res; 1086 const struct nfs_server * server; 1087 struct nfs_fattr * fattr; 1088 struct nfs4_change_info cinfo; 1089 struct nfs_fattr * dir_attr; 1090 }; 1091 1092 struct nfs4_lookup_arg { 1093 struct nfs4_sequence_args seq_args; 1094 const struct nfs_fh * dir_fh; 1095 const struct qstr * name; 1096 const u32 * bitmask; 1097 }; 1098 1099 struct nfs4_lookup_res { 1100 struct nfs4_sequence_res seq_res; 1101 const struct nfs_server * server; 1102 struct nfs_fattr * fattr; 1103 struct nfs_fh * fh; 1104 }; 1105 1106 struct nfs4_lookupp_arg { 1107 struct nfs4_sequence_args seq_args; 1108 const struct nfs_fh *fh; 1109 const u32 *bitmask; 1110 }; 1111 1112 struct nfs4_lookupp_res { 1113 struct nfs4_sequence_res seq_res; 1114 const struct nfs_server *server; 1115 struct nfs_fattr *fattr; 1116 struct nfs_fh *fh; 1117 }; 1118 1119 struct nfs4_lookup_root_arg { 1120 struct nfs4_sequence_args seq_args; 1121 const u32 * bitmask; 1122 }; 1123 1124 struct nfs4_pathconf_arg { 1125 struct nfs4_sequence_args seq_args; 1126 const struct nfs_fh * fh; 1127 const u32 * bitmask; 1128 }; 1129 1130 struct nfs4_pathconf_res { 1131 struct nfs4_sequence_res seq_res; 1132 struct nfs_pathconf *pathconf; 1133 }; 1134 1135 struct nfs4_readdir_arg { 1136 struct nfs4_sequence_args seq_args; 1137 const struct nfs_fh * fh; 1138 u64 cookie; 1139 nfs4_verifier verifier; 1140 u32 count; 1141 struct page ** pages; /* zero-copy data */ 1142 unsigned int pgbase; /* zero-copy data */ 1143 const u32 * bitmask; 1144 bool plus; 1145 }; 1146 1147 struct nfs4_readdir_res { 1148 struct nfs4_sequence_res seq_res; 1149 nfs4_verifier verifier; 1150 unsigned int pgbase; 1151 }; 1152 1153 struct nfs4_readlink { 1154 struct nfs4_sequence_args seq_args; 1155 const struct nfs_fh * fh; 1156 unsigned int pgbase; 1157 unsigned int pglen; /* zero-copy data */ 1158 struct page ** pages; /* zero-copy data */ 1159 }; 1160 1161 struct nfs4_readlink_res { 1162 struct nfs4_sequence_res seq_res; 1163 }; 1164 1165 struct nfs4_setclientid { 1166 const nfs4_verifier * sc_verifier; 1167 u32 sc_prog; 1168 unsigned int sc_netid_len; 1169 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1170 unsigned int sc_uaddr_len; 1171 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1172 struct nfs_client *sc_clnt; 1173 struct rpc_cred *sc_cred; 1174 }; 1175 1176 struct nfs4_setclientid_res { 1177 u64 clientid; 1178 nfs4_verifier confirm; 1179 }; 1180 1181 struct nfs4_statfs_arg { 1182 struct nfs4_sequence_args seq_args; 1183 const struct nfs_fh * fh; 1184 const u32 * bitmask; 1185 }; 1186 1187 struct nfs4_statfs_res { 1188 struct nfs4_sequence_res seq_res; 1189 struct nfs_fsstat *fsstat; 1190 }; 1191 1192 struct nfs4_server_caps_arg { 1193 struct nfs4_sequence_args seq_args; 1194 struct nfs_fh *fhandle; 1195 const u32 * bitmask; 1196 }; 1197 1198 struct nfs4_server_caps_res { 1199 struct nfs4_sequence_res seq_res; 1200 u32 attr_bitmask[3]; 1201 u32 exclcreat_bitmask[3]; 1202 u32 acl_bitmask; 1203 u32 has_links; 1204 u32 has_symlinks; 1205 u32 fh_expire_type; 1206 u32 case_insensitive; 1207 u32 case_preserving; 1208 }; 1209 1210 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1211 struct nfs4_pathname { 1212 unsigned int ncomponents; 1213 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1214 }; 1215 1216 #define NFS4_FS_LOCATION_MAXSERVERS 10 1217 struct nfs4_fs_location { 1218 unsigned int nservers; 1219 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1220 struct nfs4_pathname rootpath; 1221 }; 1222 1223 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1224 struct nfs4_fs_locations { 1225 struct nfs_fattr *fattr; 1226 const struct nfs_server *server; 1227 struct nfs4_pathname fs_path; 1228 int nlocations; 1229 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1230 }; 1231 1232 struct nfs4_fs_locations_arg { 1233 struct nfs4_sequence_args seq_args; 1234 const struct nfs_fh *dir_fh; 1235 const struct nfs_fh *fh; 1236 const struct qstr *name; 1237 struct page *page; 1238 const u32 *bitmask; 1239 clientid4 clientid; 1240 unsigned char migration:1, renew:1; 1241 }; 1242 1243 struct nfs4_fs_locations_res { 1244 struct nfs4_sequence_res seq_res; 1245 struct nfs4_fs_locations *fs_locations; 1246 unsigned char migration:1, renew:1; 1247 }; 1248 1249 struct nfs4_secinfo4 { 1250 u32 flavor; 1251 struct rpcsec_gss_info flavor_info; 1252 }; 1253 1254 struct nfs4_secinfo_flavors { 1255 unsigned int num_flavors; 1256 struct nfs4_secinfo4 flavors[]; 1257 }; 1258 1259 struct nfs4_secinfo_arg { 1260 struct nfs4_sequence_args seq_args; 1261 const struct nfs_fh *dir_fh; 1262 const struct qstr *name; 1263 }; 1264 1265 struct nfs4_secinfo_res { 1266 struct nfs4_sequence_res seq_res; 1267 struct nfs4_secinfo_flavors *flavors; 1268 }; 1269 1270 struct nfs4_fsid_present_arg { 1271 struct nfs4_sequence_args seq_args; 1272 const struct nfs_fh *fh; 1273 clientid4 clientid; 1274 unsigned char renew:1; 1275 }; 1276 1277 struct nfs4_fsid_present_res { 1278 struct nfs4_sequence_res seq_res; 1279 struct nfs_fh *fh; 1280 unsigned char renew:1; 1281 }; 1282 1283 #endif /* CONFIG_NFS_V4 */ 1284 1285 struct nfstime4 { 1286 u64 seconds; 1287 u32 nseconds; 1288 }; 1289 1290 #ifdef CONFIG_NFS_V4_1 1291 1292 struct pnfs_commit_bucket { 1293 struct list_head written; 1294 struct list_head committing; 1295 struct pnfs_layout_segment *lseg; 1296 struct nfs_writeverf direct_verf; 1297 }; 1298 1299 struct pnfs_commit_array { 1300 struct list_head cinfo_list; 1301 struct list_head lseg_list; 1302 struct pnfs_layout_segment *lseg; 1303 struct rcu_head rcu; 1304 refcount_t refcount; 1305 unsigned int nbuckets; 1306 struct pnfs_commit_bucket buckets[]; 1307 }; 1308 1309 struct pnfs_ds_commit_info { 1310 struct list_head commits; 1311 unsigned int nwritten; 1312 unsigned int ncommitting; 1313 const struct pnfs_commit_ops *ops; 1314 }; 1315 1316 struct nfs41_state_protection { 1317 u32 how; 1318 struct nfs4_op_map enforce; 1319 struct nfs4_op_map allow; 1320 }; 1321 1322 struct nfs41_exchange_id_args { 1323 struct nfs_client *client; 1324 nfs4_verifier verifier; 1325 u32 flags; 1326 struct nfs41_state_protection state_protect; 1327 }; 1328 1329 struct nfs41_server_owner { 1330 uint64_t minor_id; 1331 uint32_t major_id_sz; 1332 char major_id[NFS4_OPAQUE_LIMIT]; 1333 }; 1334 1335 struct nfs41_server_scope { 1336 uint32_t server_scope_sz; 1337 char server_scope[NFS4_OPAQUE_LIMIT]; 1338 }; 1339 1340 struct nfs41_impl_id { 1341 char domain[NFS4_OPAQUE_LIMIT + 1]; 1342 char name[NFS4_OPAQUE_LIMIT + 1]; 1343 struct nfstime4 date; 1344 }; 1345 1346 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1347 struct nfs41_bind_conn_to_session_args { 1348 struct nfs_client *client; 1349 struct nfs4_sessionid sessionid; 1350 u32 dir; 1351 bool use_conn_in_rdma_mode; 1352 int retries; 1353 }; 1354 1355 struct nfs41_bind_conn_to_session_res { 1356 struct nfs4_sessionid sessionid; 1357 u32 dir; 1358 bool use_conn_in_rdma_mode; 1359 }; 1360 1361 struct nfs41_exchange_id_res { 1362 u64 clientid; 1363 u32 seqid; 1364 u32 flags; 1365 struct nfs41_server_owner *server_owner; 1366 struct nfs41_server_scope *server_scope; 1367 struct nfs41_impl_id *impl_id; 1368 struct nfs41_state_protection state_protect; 1369 }; 1370 1371 struct nfs41_create_session_args { 1372 struct nfs_client *client; 1373 u64 clientid; 1374 uint32_t seqid; 1375 uint32_t flags; 1376 uint32_t cb_program; 1377 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1378 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1379 }; 1380 1381 struct nfs41_create_session_res { 1382 struct nfs4_sessionid sessionid; 1383 uint32_t seqid; 1384 uint32_t flags; 1385 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1386 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1387 }; 1388 1389 struct nfs41_reclaim_complete_args { 1390 struct nfs4_sequence_args seq_args; 1391 /* In the future extend to include curr_fh for use with migration */ 1392 unsigned char one_fs:1; 1393 }; 1394 1395 struct nfs41_reclaim_complete_res { 1396 struct nfs4_sequence_res seq_res; 1397 }; 1398 1399 #define SECINFO_STYLE_CURRENT_FH 0 1400 #define SECINFO_STYLE_PARENT 1 1401 struct nfs41_secinfo_no_name_args { 1402 struct nfs4_sequence_args seq_args; 1403 int style; 1404 }; 1405 1406 struct nfs41_test_stateid_args { 1407 struct nfs4_sequence_args seq_args; 1408 nfs4_stateid *stateid; 1409 }; 1410 1411 struct nfs41_test_stateid_res { 1412 struct nfs4_sequence_res seq_res; 1413 unsigned int status; 1414 }; 1415 1416 struct nfs41_free_stateid_args { 1417 struct nfs4_sequence_args seq_args; 1418 nfs4_stateid stateid; 1419 }; 1420 1421 struct nfs41_free_stateid_res { 1422 struct nfs4_sequence_res seq_res; 1423 unsigned int status; 1424 }; 1425 1426 #else 1427 1428 struct pnfs_ds_commit_info { 1429 }; 1430 1431 #endif /* CONFIG_NFS_V4_1 */ 1432 1433 #ifdef CONFIG_NFS_V4_2 1434 struct nfs42_falloc_args { 1435 struct nfs4_sequence_args seq_args; 1436 1437 struct nfs_fh *falloc_fh; 1438 nfs4_stateid falloc_stateid; 1439 u64 falloc_offset; 1440 u64 falloc_length; 1441 const u32 *falloc_bitmask; 1442 }; 1443 1444 struct nfs42_falloc_res { 1445 struct nfs4_sequence_res seq_res; 1446 unsigned int status; 1447 1448 struct nfs_fattr *falloc_fattr; 1449 const struct nfs_server *falloc_server; 1450 }; 1451 1452 struct nfs42_copy_args { 1453 struct nfs4_sequence_args seq_args; 1454 1455 struct nfs_fh *src_fh; 1456 nfs4_stateid src_stateid; 1457 u64 src_pos; 1458 1459 struct nfs_fh *dst_fh; 1460 nfs4_stateid dst_stateid; 1461 u64 dst_pos; 1462 1463 u64 count; 1464 bool sync; 1465 struct nl4_server *cp_src; 1466 }; 1467 1468 struct nfs42_write_res { 1469 nfs4_stateid stateid; 1470 u64 count; 1471 struct nfs_writeverf verifier; 1472 }; 1473 1474 struct nfs42_copy_res { 1475 struct nfs4_sequence_res seq_res; 1476 struct nfs42_write_res write_res; 1477 bool consecutive; 1478 bool synchronous; 1479 struct nfs_commitres commit_res; 1480 }; 1481 1482 struct nfs42_offload_status_args { 1483 struct nfs4_sequence_args osa_seq_args; 1484 struct nfs_fh *osa_src_fh; 1485 nfs4_stateid osa_stateid; 1486 }; 1487 1488 struct nfs42_offload_status_res { 1489 struct nfs4_sequence_res osr_seq_res; 1490 uint64_t osr_count; 1491 int osr_status; 1492 }; 1493 1494 struct nfs42_copy_notify_args { 1495 struct nfs4_sequence_args cna_seq_args; 1496 1497 struct nfs_fh *cna_src_fh; 1498 nfs4_stateid cna_src_stateid; 1499 struct nl4_server cna_dst; 1500 }; 1501 1502 struct nfs42_copy_notify_res { 1503 struct nfs4_sequence_res cnr_seq_res; 1504 1505 struct nfstime4 cnr_lease_time; 1506 nfs4_stateid cnr_stateid; 1507 struct nl4_server cnr_src; 1508 }; 1509 1510 struct nfs42_seek_args { 1511 struct nfs4_sequence_args seq_args; 1512 1513 struct nfs_fh *sa_fh; 1514 nfs4_stateid sa_stateid; 1515 u64 sa_offset; 1516 u32 sa_what; 1517 }; 1518 1519 struct nfs42_seek_res { 1520 struct nfs4_sequence_res seq_res; 1521 unsigned int status; 1522 1523 u32 sr_eof; 1524 u64 sr_offset; 1525 }; 1526 1527 struct nfs42_setxattrargs { 1528 struct nfs4_sequence_args seq_args; 1529 struct nfs_fh *fh; 1530 const char *xattr_name; 1531 u32 xattr_flags; 1532 size_t xattr_len; 1533 struct page **xattr_pages; 1534 }; 1535 1536 struct nfs42_setxattrres { 1537 struct nfs4_sequence_res seq_res; 1538 struct nfs4_change_info cinfo; 1539 }; 1540 1541 struct nfs42_getxattrargs { 1542 struct nfs4_sequence_args seq_args; 1543 struct nfs_fh *fh; 1544 const char *xattr_name; 1545 size_t xattr_len; 1546 struct page **xattr_pages; 1547 }; 1548 1549 struct nfs42_getxattrres { 1550 struct nfs4_sequence_res seq_res; 1551 size_t xattr_len; 1552 }; 1553 1554 struct nfs42_listxattrsargs { 1555 struct nfs4_sequence_args seq_args; 1556 struct nfs_fh *fh; 1557 u32 count; 1558 u64 cookie; 1559 struct page **xattr_pages; 1560 }; 1561 1562 struct nfs42_listxattrsres { 1563 struct nfs4_sequence_res seq_res; 1564 struct page *scratch; 1565 void *xattr_buf; 1566 size_t xattr_len; 1567 u64 cookie; 1568 bool eof; 1569 size_t copied; 1570 }; 1571 1572 struct nfs42_removexattrargs { 1573 struct nfs4_sequence_args seq_args; 1574 struct nfs_fh *fh; 1575 const char *xattr_name; 1576 }; 1577 1578 struct nfs42_removexattrres { 1579 struct nfs4_sequence_res seq_res; 1580 struct nfs4_change_info cinfo; 1581 }; 1582 1583 #endif /* CONFIG_NFS_V4_2 */ 1584 1585 struct nfs_page; 1586 1587 #define NFS_PAGEVEC_SIZE (8U) 1588 1589 struct nfs_page_array { 1590 struct page **pagevec; 1591 unsigned int npages; /* Max length of pagevec */ 1592 struct page *page_array[NFS_PAGEVEC_SIZE]; 1593 }; 1594 1595 /* used as flag bits in nfs_pgio_header */ 1596 enum { 1597 NFS_IOHDR_ERROR = 0, 1598 NFS_IOHDR_EOF, 1599 NFS_IOHDR_REDO, 1600 NFS_IOHDR_STAT, 1601 NFS_IOHDR_RESEND_PNFS, 1602 NFS_IOHDR_RESEND_MDS, 1603 NFS_IOHDR_UNSTABLE_WRITES, 1604 }; 1605 1606 struct nfs_io_completion; 1607 struct nfs_pgio_header { 1608 struct inode *inode; 1609 const struct cred *cred; 1610 struct list_head pages; 1611 struct nfs_page *req; 1612 struct nfs_writeverf verf; /* Used for writes */ 1613 fmode_t rw_mode; 1614 struct pnfs_layout_segment *lseg; 1615 loff_t io_start; 1616 const struct rpc_call_ops *mds_ops; 1617 void (*release) (struct nfs_pgio_header *hdr); 1618 const struct nfs_pgio_completion_ops *completion_ops; 1619 const struct nfs_rw_ops *rw_ops; 1620 struct nfs_io_completion *io_completion; 1621 struct nfs_direct_req *dreq; 1622 1623 int pnfs_error; 1624 int error; /* merge with pnfs_error */ 1625 unsigned int good_bytes; /* boundary of good data */ 1626 unsigned long flags; 1627 1628 /* 1629 * rpc data 1630 */ 1631 struct rpc_task task; 1632 struct nfs_fattr fattr; 1633 struct nfs_pgio_args args; /* argument struct */ 1634 struct nfs_pgio_res res; /* result struct */ 1635 unsigned long timestamp; /* For lease renewal */ 1636 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1637 __u64 mds_offset; /* Filelayout dense stripe */ 1638 struct nfs_page_array page_array; 1639 struct nfs_client *ds_clp; /* pNFS data server */ 1640 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1641 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1642 }; 1643 1644 struct nfs_mds_commit_info { 1645 atomic_t rpcs_out; 1646 atomic_long_t ncommit; 1647 struct list_head list; 1648 }; 1649 1650 struct nfs_commit_info; 1651 struct nfs_commit_data; 1652 struct nfs_inode; 1653 struct nfs_commit_completion_ops { 1654 void (*completion) (struct nfs_commit_data *data); 1655 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1656 }; 1657 1658 struct nfs_commit_info { 1659 struct inode *inode; /* Needed for inode->i_lock */ 1660 struct nfs_mds_commit_info *mds; 1661 struct pnfs_ds_commit_info *ds; 1662 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1663 const struct nfs_commit_completion_ops *completion_ops; 1664 }; 1665 1666 struct nfs_commit_data { 1667 struct rpc_task task; 1668 struct inode *inode; 1669 const struct cred *cred; 1670 struct nfs_fattr fattr; 1671 struct nfs_writeverf verf; 1672 struct list_head pages; /* Coalesced requests we wish to flush */ 1673 struct list_head list; /* lists of struct nfs_write_data */ 1674 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1675 struct nfs_commitargs args; /* argument struct */ 1676 struct nfs_commitres res; /* result struct */ 1677 struct nfs_open_context *context; 1678 struct pnfs_layout_segment *lseg; 1679 struct nfs_client *ds_clp; /* pNFS data server */ 1680 int ds_commit_index; 1681 loff_t lwb; 1682 const struct rpc_call_ops *mds_ops; 1683 const struct nfs_commit_completion_ops *completion_ops; 1684 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1685 unsigned long flags; 1686 }; 1687 1688 struct nfs_pgio_completion_ops { 1689 void (*error_cleanup)(struct list_head *head, int); 1690 void (*init_hdr)(struct nfs_pgio_header *hdr); 1691 void (*completion)(struct nfs_pgio_header *hdr); 1692 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1693 }; 1694 1695 struct nfs_unlinkdata { 1696 struct nfs_removeargs args; 1697 struct nfs_removeres res; 1698 struct dentry *dentry; 1699 wait_queue_head_t wq; 1700 const struct cred *cred; 1701 struct nfs_fattr dir_attr; 1702 long timeout; 1703 }; 1704 1705 struct nfs_renamedata { 1706 struct nfs_renameargs args; 1707 struct nfs_renameres res; 1708 struct rpc_task task; 1709 const struct cred *cred; 1710 struct inode *old_dir; 1711 struct dentry *old_dentry; 1712 struct nfs_fattr old_fattr; 1713 struct inode *new_dir; 1714 struct dentry *new_dentry; 1715 struct nfs_fattr new_fattr; 1716 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1717 long timeout; 1718 bool cancelled; 1719 }; 1720 1721 struct nfs_access_entry; 1722 struct nfs_client; 1723 struct rpc_timeout; 1724 struct nfs_subversion; 1725 struct nfs_mount_info; 1726 struct nfs_client_initdata; 1727 struct nfs_pageio_descriptor; 1728 struct fs_context; 1729 1730 /* 1731 * RPC procedure vector for NFSv2/NFSv3 demuxing 1732 */ 1733 struct nfs_rpc_ops { 1734 u32 version; /* Protocol version */ 1735 const struct dentry_operations *dentry_ops; 1736 const struct inode_operations *dir_inode_ops; 1737 const struct inode_operations *file_inode_ops; 1738 const struct file_operations *file_ops; 1739 const struct nlmclnt_operations *nlmclnt_ops; 1740 1741 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1742 struct nfs_fsinfo *); 1743 int (*submount) (struct fs_context *, struct nfs_server *); 1744 int (*try_get_tree) (struct fs_context *); 1745 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1746 struct nfs_fattr *, struct inode *); 1747 int (*setattr) (struct dentry *, struct nfs_fattr *, 1748 struct iattr *); 1749 int (*lookup) (struct inode *, struct dentry *, 1750 struct nfs_fh *, struct nfs_fattr *); 1751 int (*lookupp) (struct inode *, struct nfs_fh *, 1752 struct nfs_fattr *); 1753 int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *); 1754 int (*readlink)(struct inode *, struct page *, unsigned int, 1755 unsigned int); 1756 int (*create) (struct inode *, struct dentry *, 1757 struct iattr *, int); 1758 int (*remove) (struct inode *, struct dentry *); 1759 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1760 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1761 int (*unlink_done) (struct rpc_task *, struct inode *); 1762 void (*rename_setup) (struct rpc_message *msg, 1763 struct dentry *old_dentry, 1764 struct dentry *new_dentry); 1765 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1766 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1767 int (*link) (struct inode *, struct inode *, const struct qstr *); 1768 int (*symlink) (struct inode *, struct dentry *, struct page *, 1769 unsigned int, struct iattr *); 1770 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1771 int (*rmdir) (struct inode *, const struct qstr *); 1772 int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); 1773 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1774 dev_t); 1775 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1776 struct nfs_fsstat *); 1777 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1778 struct nfs_fsinfo *); 1779 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1780 struct nfs_pathconf *); 1781 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1782 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1783 int (*pgio_rpc_prepare)(struct rpc_task *, 1784 struct nfs_pgio_header *); 1785 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1786 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1787 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1788 struct rpc_clnt **); 1789 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1790 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1791 struct rpc_clnt **); 1792 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1793 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1794 int (*lock)(struct file *, int, struct file_lock *); 1795 int (*lock_check_bounds)(const struct file_lock *); 1796 void (*clear_acl_cache)(struct inode *); 1797 void (*close_context)(struct nfs_open_context *ctx, int); 1798 struct inode * (*open_context) (struct inode *dir, 1799 struct nfs_open_context *ctx, 1800 int open_flags, 1801 struct iattr *iattr, 1802 int *); 1803 int (*have_delegation)(struct inode *, fmode_t); 1804 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1805 struct nfs_client *(*init_client) (struct nfs_client *, 1806 const struct nfs_client_initdata *); 1807 void (*free_client) (struct nfs_client *); 1808 struct nfs_server *(*create_server)(struct fs_context *); 1809 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1810 struct nfs_fattr *, rpc_authflavor_t); 1811 int (*discover_trunking)(struct nfs_server *, struct nfs_fh *); 1812 void (*enable_swap)(struct inode *inode); 1813 void (*disable_swap)(struct inode *inode); 1814 }; 1815 1816 /* 1817 * NFS_CALL(getattr, inode, (fattr)); 1818 * into 1819 * NFS_PROTO(inode)->getattr(fattr); 1820 */ 1821 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1822 1823 /* 1824 * Function vectors etc. for the NFS client 1825 */ 1826 extern const struct nfs_rpc_ops nfs_v2_clientops; 1827 extern const struct nfs_rpc_ops nfs_v3_clientops; 1828 extern const struct nfs_rpc_ops nfs_v4_clientops; 1829 extern const struct rpc_version nfs_version2; 1830 extern const struct rpc_version nfs_version3; 1831 extern const struct rpc_version nfs_version4; 1832 1833 extern const struct rpc_version nfsacl_version3; 1834 extern const struct rpc_program nfsacl_program; 1835 1836 #endif 1837