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 */ nfs_fsid_equal(const struct nfs_fsid * a,const struct nfs_fsid * b)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 __u64 uniquifier; 450 }; 451 452 struct nfs4_open_delegation { 453 __u32 open_delegation_type; 454 union { 455 struct { 456 fmode_t type; 457 __u32 do_recall; 458 nfs4_stateid stateid; 459 unsigned long pagemod_limit; 460 }; 461 struct { 462 __u32 why_no_delegation; 463 __u32 will_notify; 464 }; 465 }; 466 }; 467 468 /* 469 * Arguments to the open call. 470 */ 471 struct nfs_openargs { 472 struct nfs4_sequence_args seq_args; 473 const struct nfs_fh * fh; 474 struct nfs_seqid * seqid; 475 int open_flags; 476 fmode_t fmode; 477 u32 share_access; 478 u32 access; 479 __u64 clientid; 480 struct stateowner_id id; 481 union { 482 struct { 483 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 484 nfs4_verifier verifier; /* EXCLUSIVE */ 485 }; 486 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 487 __u32 delegation_type; /* CLAIM_PREVIOUS */ 488 } u; 489 const struct qstr * name; 490 const struct nfs_server *server; /* Needed for ID mapping */ 491 const u32 * bitmask; 492 const u32 * open_bitmap; 493 enum open_claim_type4 claim; 494 enum createmode4 createmode; 495 const struct nfs4_label *label; 496 umode_t umask; 497 struct nfs4_layoutget_args *lg_args; 498 }; 499 500 struct nfs_openres { 501 struct nfs4_sequence_res seq_res; 502 nfs4_stateid stateid; 503 struct nfs_fh fh; 504 struct nfs4_change_info cinfo; 505 __u32 rflags; 506 struct nfs_fattr * f_attr; 507 struct nfs_seqid * seqid; 508 const struct nfs_server *server; 509 __u32 attrset[NFS4_BITMAP_SIZE]; 510 struct nfs4_string *owner; 511 struct nfs4_string *group_owner; 512 struct nfs4_open_delegation delegation; 513 __u32 access_request; 514 __u32 access_supported; 515 __u32 access_result; 516 struct nfs4_layoutget_res *lg_res; 517 }; 518 519 /* 520 * Arguments to the open_confirm call. 521 */ 522 struct nfs_open_confirmargs { 523 struct nfs4_sequence_args seq_args; 524 const struct nfs_fh * fh; 525 nfs4_stateid * stateid; 526 struct nfs_seqid * seqid; 527 }; 528 529 struct nfs_open_confirmres { 530 struct nfs4_sequence_res seq_res; 531 nfs4_stateid stateid; 532 struct nfs_seqid * seqid; 533 }; 534 535 /* 536 * Arguments to the close call. 537 */ 538 struct nfs_closeargs { 539 struct nfs4_sequence_args seq_args; 540 struct nfs_fh * fh; 541 nfs4_stateid stateid; 542 struct nfs_seqid * seqid; 543 fmode_t fmode; 544 u32 share_access; 545 const u32 * bitmask; 546 u32 bitmask_store[NFS_BITMASK_SZ]; 547 struct nfs4_layoutreturn_args *lr_args; 548 }; 549 550 struct nfs_closeres { 551 struct nfs4_sequence_res seq_res; 552 nfs4_stateid stateid; 553 struct nfs_fattr * fattr; 554 struct nfs_seqid * seqid; 555 const struct nfs_server *server; 556 struct nfs4_layoutreturn_res *lr_res; 557 int lr_ret; 558 }; 559 /* 560 * * Arguments to the lock,lockt, and locku call. 561 * */ 562 struct nfs_lowner { 563 __u64 clientid; 564 __u64 id; 565 dev_t s_dev; 566 }; 567 568 struct nfs_lock_args { 569 struct nfs4_sequence_args seq_args; 570 struct nfs_fh * fh; 571 struct file_lock * fl; 572 struct nfs_seqid * lock_seqid; 573 nfs4_stateid lock_stateid; 574 struct nfs_seqid * open_seqid; 575 nfs4_stateid open_stateid; 576 struct nfs_lowner lock_owner; 577 unsigned char block : 1; 578 unsigned char reclaim : 1; 579 unsigned char new_lock : 1; 580 unsigned char new_lock_owner : 1; 581 }; 582 583 struct nfs_lock_res { 584 struct nfs4_sequence_res seq_res; 585 nfs4_stateid stateid; 586 struct nfs_seqid * lock_seqid; 587 struct nfs_seqid * open_seqid; 588 }; 589 590 struct nfs_locku_args { 591 struct nfs4_sequence_args seq_args; 592 struct nfs_fh * fh; 593 struct file_lock * fl; 594 struct nfs_seqid * seqid; 595 nfs4_stateid stateid; 596 }; 597 598 struct nfs_locku_res { 599 struct nfs4_sequence_res seq_res; 600 nfs4_stateid stateid; 601 struct nfs_seqid * seqid; 602 }; 603 604 struct nfs_lockt_args { 605 struct nfs4_sequence_args seq_args; 606 struct nfs_fh * fh; 607 struct file_lock * fl; 608 struct nfs_lowner lock_owner; 609 }; 610 611 struct nfs_lockt_res { 612 struct nfs4_sequence_res seq_res; 613 struct file_lock * denied; /* LOCK, LOCKT failed */ 614 }; 615 616 struct nfs_release_lockowner_args { 617 struct nfs4_sequence_args seq_args; 618 struct nfs_lowner lock_owner; 619 }; 620 621 struct nfs_release_lockowner_res { 622 struct nfs4_sequence_res seq_res; 623 }; 624 625 struct nfs4_delegattr { 626 struct timespec64 atime; 627 struct timespec64 mtime; 628 bool atime_set; 629 bool mtime_set; 630 }; 631 632 struct nfs4_delegreturnargs { 633 struct nfs4_sequence_args seq_args; 634 const struct nfs_fh *fhandle; 635 const nfs4_stateid *stateid; 636 const u32 *bitmask; 637 u32 bitmask_store[NFS_BITMASK_SZ]; 638 struct nfs4_layoutreturn_args *lr_args; 639 struct nfs4_delegattr *sattr_args; 640 }; 641 642 struct nfs4_delegreturnres { 643 struct nfs4_sequence_res seq_res; 644 struct nfs_fattr * fattr; 645 struct nfs_server *server; 646 struct nfs4_layoutreturn_res *lr_res; 647 int lr_ret; 648 bool sattr_res; 649 int sattr_ret; 650 }; 651 652 /* 653 * Arguments to the write call. 654 */ 655 struct nfs_write_verifier { 656 char data[8]; 657 }; 658 659 struct nfs_writeverf { 660 struct nfs_write_verifier verifier; 661 enum nfs3_stable_how committed; 662 }; 663 664 /* 665 * Arguments shared by the read and write call. 666 */ 667 struct nfs_pgio_args { 668 struct nfs4_sequence_args seq_args; 669 struct nfs_fh * fh; 670 struct nfs_open_context *context; 671 struct nfs_lock_context *lock_context; 672 nfs4_stateid stateid; 673 __u64 offset; 674 __u32 count; 675 unsigned int pgbase; 676 struct page ** pages; 677 union { 678 unsigned int replen; /* used by read */ 679 struct { 680 const u32 * bitmask; /* used by write */ 681 u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */ 682 enum nfs3_stable_how stable; /* used by write */ 683 }; 684 }; 685 }; 686 687 struct nfs_pgio_res { 688 struct nfs4_sequence_res seq_res; 689 struct nfs_fattr * fattr; 690 __u64 count; 691 __u32 op_status; 692 union { 693 struct { 694 unsigned int replen; /* used by read */ 695 int eof; /* used by read */ 696 void * scratch; /* used by read */ 697 }; 698 struct { 699 struct nfs_writeverf * verf; /* used by write */ 700 const struct nfs_server *server; /* used by write */ 701 }; 702 }; 703 }; 704 705 /* 706 * Arguments to the commit call. 707 */ 708 struct nfs_commitargs { 709 struct nfs4_sequence_args seq_args; 710 struct nfs_fh *fh; 711 __u64 offset; 712 __u32 count; 713 const u32 *bitmask; 714 }; 715 716 struct nfs_commitres { 717 struct nfs4_sequence_res seq_res; 718 __u32 op_status; 719 struct nfs_fattr *fattr; 720 struct nfs_writeverf *verf; 721 const struct nfs_server *server; 722 }; 723 724 /* 725 * Common arguments to the unlink call 726 */ 727 struct nfs_removeargs { 728 struct nfs4_sequence_args seq_args; 729 const struct nfs_fh *fh; 730 struct qstr name; 731 }; 732 733 struct nfs_removeres { 734 struct nfs4_sequence_res seq_res; 735 struct nfs_server *server; 736 struct nfs_fattr *dir_attr; 737 struct nfs4_change_info cinfo; 738 }; 739 740 /* 741 * Common arguments to the rename call 742 */ 743 struct nfs_renameargs { 744 struct nfs4_sequence_args seq_args; 745 const struct nfs_fh *old_dir; 746 const struct nfs_fh *new_dir; 747 const struct qstr *old_name; 748 const struct qstr *new_name; 749 }; 750 751 struct nfs_renameres { 752 struct nfs4_sequence_res seq_res; 753 struct nfs_server *server; 754 struct nfs4_change_info old_cinfo; 755 struct nfs_fattr *old_fattr; 756 struct nfs4_change_info new_cinfo; 757 struct nfs_fattr *new_fattr; 758 }; 759 760 /* parsed sec= options */ 761 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 762 struct nfs_auth_info { 763 unsigned int flavor_len; 764 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 765 }; 766 767 /* 768 * Argument struct for decode_entry function 769 */ 770 struct nfs_entry { 771 __u64 ino; 772 __u64 cookie; 773 const char * name; 774 unsigned int len; 775 int eof; 776 struct nfs_fh * fh; 777 struct nfs_fattr * fattr; 778 unsigned char d_type; 779 struct nfs_server * server; 780 }; 781 782 struct nfs_readdir_arg { 783 struct dentry *dentry; 784 const struct cred *cred; 785 __be32 *verf; 786 u64 cookie; 787 struct page **pages; 788 unsigned int page_len; 789 bool plus; 790 }; 791 792 struct nfs_readdir_res { 793 __be32 *verf; 794 }; 795 796 /* 797 * The following types are for NFSv2 only. 798 */ 799 struct nfs_sattrargs { 800 struct nfs_fh * fh; 801 struct iattr * sattr; 802 }; 803 804 struct nfs_diropargs { 805 struct nfs_fh * fh; 806 const char * name; 807 unsigned int len; 808 }; 809 810 struct nfs_createargs { 811 struct nfs_fh * fh; 812 const char * name; 813 unsigned int len; 814 struct iattr * sattr; 815 }; 816 817 struct nfs_setattrargs { 818 struct nfs4_sequence_args seq_args; 819 struct nfs_fh * fh; 820 nfs4_stateid stateid; 821 struct iattr * iap; 822 const struct nfs_server * server; /* Needed for name mapping */ 823 const u32 * bitmask; 824 const struct nfs4_label *label; 825 }; 826 827 enum nfs4_acl_type { 828 NFS4ACL_NONE = 0, 829 NFS4ACL_ACL, 830 NFS4ACL_DACL, 831 NFS4ACL_SACL, 832 }; 833 834 struct nfs_setaclargs { 835 struct nfs4_sequence_args seq_args; 836 struct nfs_fh * fh; 837 enum nfs4_acl_type acl_type; 838 size_t acl_len; 839 struct page ** acl_pages; 840 }; 841 842 struct nfs_setaclres { 843 struct nfs4_sequence_res seq_res; 844 }; 845 846 struct nfs_getaclargs { 847 struct nfs4_sequence_args seq_args; 848 struct nfs_fh * fh; 849 enum nfs4_acl_type acl_type; 850 size_t acl_len; 851 struct page ** acl_pages; 852 }; 853 854 /* getxattr ACL interface flags */ 855 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 856 struct nfs_getaclres { 857 struct nfs4_sequence_res seq_res; 858 enum nfs4_acl_type acl_type; 859 size_t acl_len; 860 size_t acl_data_offset; 861 int acl_flags; 862 struct page * acl_scratch; 863 }; 864 865 struct nfs_setattrres { 866 struct nfs4_sequence_res seq_res; 867 struct nfs_fattr * fattr; 868 const struct nfs_server * server; 869 }; 870 871 struct nfs_linkargs { 872 struct nfs_fh * fromfh; 873 struct nfs_fh * tofh; 874 const char * toname; 875 unsigned int tolen; 876 }; 877 878 struct nfs_symlinkargs { 879 struct nfs_fh * fromfh; 880 const char * fromname; 881 unsigned int fromlen; 882 struct page ** pages; 883 unsigned int pathlen; 884 struct iattr * sattr; 885 }; 886 887 struct nfs_readdirargs { 888 struct nfs_fh * fh; 889 __u32 cookie; 890 unsigned int count; 891 struct page ** pages; 892 }; 893 894 struct nfs3_getaclargs { 895 struct nfs_fh * fh; 896 int mask; 897 struct page ** pages; 898 }; 899 900 struct nfs3_setaclargs { 901 struct inode * inode; 902 int mask; 903 struct posix_acl * acl_access; 904 struct posix_acl * acl_default; 905 size_t len; 906 unsigned int npages; 907 struct page ** pages; 908 }; 909 910 struct nfs_diropok { 911 struct nfs_fh * fh; 912 struct nfs_fattr * fattr; 913 }; 914 915 struct nfs_readlinkargs { 916 struct nfs_fh * fh; 917 unsigned int pgbase; 918 unsigned int pglen; 919 struct page ** pages; 920 }; 921 922 struct nfs3_sattrargs { 923 struct nfs_fh * fh; 924 struct iattr * sattr; 925 unsigned int guard; 926 struct timespec64 guardtime; 927 }; 928 929 struct nfs3_diropargs { 930 struct nfs_fh * fh; 931 const char * name; 932 unsigned int len; 933 }; 934 935 struct nfs3_accessargs { 936 struct nfs_fh * fh; 937 __u32 access; 938 }; 939 940 struct nfs3_createargs { 941 struct nfs_fh * fh; 942 const char * name; 943 unsigned int len; 944 struct iattr * sattr; 945 enum nfs3_createmode createmode; 946 __be32 verifier[2]; 947 }; 948 949 struct nfs3_mkdirargs { 950 struct nfs_fh * fh; 951 const char * name; 952 unsigned int len; 953 struct iattr * sattr; 954 }; 955 956 struct nfs3_symlinkargs { 957 struct nfs_fh * fromfh; 958 const char * fromname; 959 unsigned int fromlen; 960 struct page ** pages; 961 unsigned int pathlen; 962 struct iattr * sattr; 963 }; 964 965 struct nfs3_mknodargs { 966 struct nfs_fh * fh; 967 const char * name; 968 unsigned int len; 969 enum nfs3_ftype type; 970 struct iattr * sattr; 971 dev_t rdev; 972 }; 973 974 struct nfs3_linkargs { 975 struct nfs_fh * fromfh; 976 struct nfs_fh * tofh; 977 const char * toname; 978 unsigned int tolen; 979 }; 980 981 struct nfs3_readdirargs { 982 struct nfs_fh * fh; 983 __u64 cookie; 984 __be32 verf[2]; 985 bool plus; 986 unsigned int count; 987 struct page ** pages; 988 }; 989 990 struct nfs3_diropres { 991 struct nfs_fattr * dir_attr; 992 struct nfs_fh * fh; 993 struct nfs_fattr * fattr; 994 }; 995 996 struct nfs3_accessres { 997 struct nfs_fattr * fattr; 998 __u32 access; 999 }; 1000 1001 struct nfs3_readlinkargs { 1002 struct nfs_fh * fh; 1003 unsigned int pgbase; 1004 unsigned int pglen; 1005 struct page ** pages; 1006 }; 1007 1008 struct nfs3_linkres { 1009 struct nfs_fattr * dir_attr; 1010 struct nfs_fattr * fattr; 1011 }; 1012 1013 struct nfs3_readdirres { 1014 struct nfs_fattr * dir_attr; 1015 __be32 * verf; 1016 bool plus; 1017 }; 1018 1019 struct nfs3_getaclres { 1020 struct nfs_fattr * fattr; 1021 int mask; 1022 unsigned int acl_access_count; 1023 unsigned int acl_default_count; 1024 struct posix_acl * acl_access; 1025 struct posix_acl * acl_default; 1026 }; 1027 1028 #if IS_ENABLED(CONFIG_NFS_V4) 1029 1030 typedef u64 clientid4; 1031 1032 struct nfs4_accessargs { 1033 struct nfs4_sequence_args seq_args; 1034 const struct nfs_fh * fh; 1035 const u32 * bitmask; 1036 u32 access; 1037 }; 1038 1039 struct nfs4_accessres { 1040 struct nfs4_sequence_res seq_res; 1041 const struct nfs_server * server; 1042 struct nfs_fattr * fattr; 1043 u32 supported; 1044 u32 access; 1045 }; 1046 1047 struct nfs4_create_arg { 1048 struct nfs4_sequence_args seq_args; 1049 u32 ftype; 1050 union { 1051 struct { 1052 struct page ** pages; 1053 unsigned int len; 1054 } symlink; /* NF4LNK */ 1055 struct { 1056 u32 specdata1; 1057 u32 specdata2; 1058 } device; /* NF4BLK, NF4CHR */ 1059 } u; 1060 const struct qstr * name; 1061 const struct nfs_server * server; 1062 const struct iattr * attrs; 1063 const struct nfs_fh * dir_fh; 1064 const u32 * bitmask; 1065 const struct nfs4_label *label; 1066 umode_t umask; 1067 }; 1068 1069 struct nfs4_create_res { 1070 struct nfs4_sequence_res seq_res; 1071 const struct nfs_server * server; 1072 struct nfs_fh * fh; 1073 struct nfs_fattr * fattr; 1074 struct nfs4_change_info dir_cinfo; 1075 }; 1076 1077 struct nfs4_fsinfo_arg { 1078 struct nfs4_sequence_args seq_args; 1079 const struct nfs_fh * fh; 1080 const u32 * bitmask; 1081 }; 1082 1083 struct nfs4_fsinfo_res { 1084 struct nfs4_sequence_res seq_res; 1085 struct nfs_fsinfo *fsinfo; 1086 }; 1087 1088 struct nfs4_getattr_arg { 1089 struct nfs4_sequence_args seq_args; 1090 const struct nfs_fh * fh; 1091 const u32 * bitmask; 1092 }; 1093 1094 struct nfs4_getattr_res { 1095 struct nfs4_sequence_res seq_res; 1096 const struct nfs_server * server; 1097 struct nfs_fattr * fattr; 1098 }; 1099 1100 struct nfs4_link_arg { 1101 struct nfs4_sequence_args seq_args; 1102 const struct nfs_fh * fh; 1103 const struct nfs_fh * dir_fh; 1104 const struct qstr * name; 1105 const u32 * bitmask; 1106 }; 1107 1108 struct nfs4_link_res { 1109 struct nfs4_sequence_res seq_res; 1110 const struct nfs_server * server; 1111 struct nfs_fattr * fattr; 1112 struct nfs4_change_info cinfo; 1113 struct nfs_fattr * dir_attr; 1114 }; 1115 1116 struct nfs4_lookup_arg { 1117 struct nfs4_sequence_args seq_args; 1118 const struct nfs_fh * dir_fh; 1119 const struct qstr * name; 1120 const u32 * bitmask; 1121 }; 1122 1123 struct nfs4_lookup_res { 1124 struct nfs4_sequence_res seq_res; 1125 const struct nfs_server * server; 1126 struct nfs_fattr * fattr; 1127 struct nfs_fh * fh; 1128 }; 1129 1130 struct nfs4_lookupp_arg { 1131 struct nfs4_sequence_args seq_args; 1132 const struct nfs_fh *fh; 1133 const u32 *bitmask; 1134 }; 1135 1136 struct nfs4_lookupp_res { 1137 struct nfs4_sequence_res seq_res; 1138 const struct nfs_server *server; 1139 struct nfs_fattr *fattr; 1140 struct nfs_fh *fh; 1141 }; 1142 1143 struct nfs4_lookup_root_arg { 1144 struct nfs4_sequence_args seq_args; 1145 const u32 * bitmask; 1146 }; 1147 1148 struct nfs4_pathconf_arg { 1149 struct nfs4_sequence_args seq_args; 1150 const struct nfs_fh * fh; 1151 const u32 * bitmask; 1152 }; 1153 1154 struct nfs4_pathconf_res { 1155 struct nfs4_sequence_res seq_res; 1156 struct nfs_pathconf *pathconf; 1157 }; 1158 1159 struct nfs4_readdir_arg { 1160 struct nfs4_sequence_args seq_args; 1161 const struct nfs_fh * fh; 1162 u64 cookie; 1163 nfs4_verifier verifier; 1164 u32 count; 1165 struct page ** pages; /* zero-copy data */ 1166 unsigned int pgbase; /* zero-copy data */ 1167 const u32 * bitmask; 1168 bool plus; 1169 }; 1170 1171 struct nfs4_readdir_res { 1172 struct nfs4_sequence_res seq_res; 1173 nfs4_verifier verifier; 1174 unsigned int pgbase; 1175 }; 1176 1177 struct nfs4_readlink { 1178 struct nfs4_sequence_args seq_args; 1179 const struct nfs_fh * fh; 1180 unsigned int pgbase; 1181 unsigned int pglen; /* zero-copy data */ 1182 struct page ** pages; /* zero-copy data */ 1183 }; 1184 1185 struct nfs4_readlink_res { 1186 struct nfs4_sequence_res seq_res; 1187 }; 1188 1189 struct nfs4_setclientid { 1190 const nfs4_verifier * sc_verifier; 1191 u32 sc_prog; 1192 unsigned int sc_netid_len; 1193 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1194 unsigned int sc_uaddr_len; 1195 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1196 struct nfs_client *sc_clnt; 1197 struct rpc_cred *sc_cred; 1198 }; 1199 1200 struct nfs4_setclientid_res { 1201 u64 clientid; 1202 nfs4_verifier confirm; 1203 }; 1204 1205 struct nfs4_statfs_arg { 1206 struct nfs4_sequence_args seq_args; 1207 const struct nfs_fh * fh; 1208 const u32 * bitmask; 1209 }; 1210 1211 struct nfs4_statfs_res { 1212 struct nfs4_sequence_res seq_res; 1213 struct nfs_fsstat *fsstat; 1214 }; 1215 1216 struct nfs4_open_caps { 1217 u32 oa_share_access[1]; 1218 u32 oa_share_deny[1]; 1219 u32 oa_share_access_want[1]; 1220 u32 oa_open_claim[1]; 1221 u32 oa_createmode[1]; 1222 }; 1223 1224 struct nfs4_server_caps_arg { 1225 struct nfs4_sequence_args seq_args; 1226 struct nfs_fh *fhandle; 1227 const u32 * bitmask; 1228 }; 1229 1230 struct nfs4_server_caps_res { 1231 struct nfs4_sequence_res seq_res; 1232 u32 attr_bitmask[3]; 1233 u32 exclcreat_bitmask[3]; 1234 u32 acl_bitmask; 1235 u32 has_links; 1236 u32 has_symlinks; 1237 u32 fh_expire_type; 1238 u32 case_insensitive; 1239 u32 case_preserving; 1240 struct nfs4_open_caps open_caps; 1241 }; 1242 1243 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1244 struct nfs4_pathname { 1245 unsigned int ncomponents; 1246 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1247 }; 1248 1249 #define NFS4_FS_LOCATION_MAXSERVERS 10 1250 struct nfs4_fs_location { 1251 unsigned int nservers; 1252 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1253 struct nfs4_pathname rootpath; 1254 }; 1255 1256 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1257 struct nfs4_fs_locations { 1258 struct nfs_fattr *fattr; 1259 const struct nfs_server *server; 1260 struct nfs4_pathname fs_path; 1261 int nlocations; 1262 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1263 }; 1264 1265 struct nfs4_fs_locations_arg { 1266 struct nfs4_sequence_args seq_args; 1267 const struct nfs_fh *dir_fh; 1268 const struct nfs_fh *fh; 1269 const struct qstr *name; 1270 struct page *page; 1271 const u32 *bitmask; 1272 clientid4 clientid; 1273 unsigned char migration:1, renew:1; 1274 }; 1275 1276 struct nfs4_fs_locations_res { 1277 struct nfs4_sequence_res seq_res; 1278 struct nfs4_fs_locations *fs_locations; 1279 unsigned char migration:1, renew:1; 1280 }; 1281 1282 struct nfs4_secinfo4 { 1283 u32 flavor; 1284 struct rpcsec_gss_info flavor_info; 1285 }; 1286 1287 struct nfs4_secinfo_flavors { 1288 unsigned int num_flavors; 1289 struct nfs4_secinfo4 flavors[]; 1290 }; 1291 1292 struct nfs4_secinfo_arg { 1293 struct nfs4_sequence_args seq_args; 1294 const struct nfs_fh *dir_fh; 1295 const struct qstr *name; 1296 }; 1297 1298 struct nfs4_secinfo_res { 1299 struct nfs4_sequence_res seq_res; 1300 struct nfs4_secinfo_flavors *flavors; 1301 }; 1302 1303 struct nfs4_fsid_present_arg { 1304 struct nfs4_sequence_args seq_args; 1305 const struct nfs_fh *fh; 1306 clientid4 clientid; 1307 unsigned char renew:1; 1308 }; 1309 1310 struct nfs4_fsid_present_res { 1311 struct nfs4_sequence_res seq_res; 1312 struct nfs_fh *fh; 1313 unsigned char renew:1; 1314 }; 1315 1316 #endif /* CONFIG_NFS_V4 */ 1317 1318 struct nfstime4 { 1319 u64 seconds; 1320 u32 nseconds; 1321 }; 1322 1323 #ifdef CONFIG_NFS_V4_1 1324 1325 struct pnfs_commit_bucket { 1326 struct list_head written; 1327 struct list_head committing; 1328 struct pnfs_layout_segment *lseg; 1329 struct nfs_writeverf direct_verf; 1330 }; 1331 1332 struct pnfs_commit_array { 1333 struct list_head cinfo_list; 1334 struct list_head lseg_list; 1335 struct pnfs_layout_segment *lseg; 1336 struct rcu_head rcu; 1337 refcount_t refcount; 1338 unsigned int nbuckets; 1339 struct pnfs_commit_bucket buckets[]; 1340 }; 1341 1342 struct pnfs_ds_commit_info { 1343 struct list_head commits; 1344 unsigned int nwritten; 1345 unsigned int ncommitting; 1346 const struct pnfs_commit_ops *ops; 1347 }; 1348 1349 struct nfs41_state_protection { 1350 u32 how; 1351 struct nfs4_op_map enforce; 1352 struct nfs4_op_map allow; 1353 }; 1354 1355 struct nfs41_exchange_id_args { 1356 struct nfs_client *client; 1357 nfs4_verifier verifier; 1358 u32 flags; 1359 struct nfs41_state_protection state_protect; 1360 }; 1361 1362 struct nfs41_server_owner { 1363 uint64_t minor_id; 1364 uint32_t major_id_sz; 1365 char major_id[NFS4_OPAQUE_LIMIT]; 1366 }; 1367 1368 struct nfs41_server_scope { 1369 uint32_t server_scope_sz; 1370 char server_scope[NFS4_OPAQUE_LIMIT]; 1371 }; 1372 1373 struct nfs41_impl_id { 1374 char domain[NFS4_OPAQUE_LIMIT + 1]; 1375 char name[NFS4_OPAQUE_LIMIT + 1]; 1376 struct nfstime4 date; 1377 }; 1378 1379 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1380 struct nfs41_bind_conn_to_session_args { 1381 struct nfs_client *client; 1382 struct nfs4_sessionid sessionid; 1383 u32 dir; 1384 bool use_conn_in_rdma_mode; 1385 int retries; 1386 }; 1387 1388 struct nfs41_bind_conn_to_session_res { 1389 struct nfs4_sessionid sessionid; 1390 u32 dir; 1391 bool use_conn_in_rdma_mode; 1392 }; 1393 1394 struct nfs41_exchange_id_res { 1395 u64 clientid; 1396 u32 seqid; 1397 u32 flags; 1398 struct nfs41_server_owner *server_owner; 1399 struct nfs41_server_scope *server_scope; 1400 struct nfs41_impl_id *impl_id; 1401 struct nfs41_state_protection state_protect; 1402 }; 1403 1404 struct nfs41_create_session_args { 1405 struct nfs_client *client; 1406 u64 clientid; 1407 uint32_t seqid; 1408 uint32_t flags; 1409 uint32_t cb_program; 1410 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1411 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1412 }; 1413 1414 struct nfs41_create_session_res { 1415 struct nfs4_sessionid sessionid; 1416 uint32_t seqid; 1417 uint32_t flags; 1418 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1419 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1420 }; 1421 1422 struct nfs41_reclaim_complete_args { 1423 struct nfs4_sequence_args seq_args; 1424 /* In the future extend to include curr_fh for use with migration */ 1425 unsigned char one_fs:1; 1426 }; 1427 1428 struct nfs41_reclaim_complete_res { 1429 struct nfs4_sequence_res seq_res; 1430 }; 1431 1432 #define SECINFO_STYLE_CURRENT_FH 0 1433 #define SECINFO_STYLE_PARENT 1 1434 struct nfs41_secinfo_no_name_args { 1435 struct nfs4_sequence_args seq_args; 1436 int style; 1437 }; 1438 1439 struct nfs41_test_stateid_args { 1440 struct nfs4_sequence_args seq_args; 1441 nfs4_stateid stateid; 1442 }; 1443 1444 struct nfs41_test_stateid_res { 1445 struct nfs4_sequence_res seq_res; 1446 unsigned int status; 1447 }; 1448 1449 struct nfs41_free_stateid_args { 1450 struct nfs4_sequence_args seq_args; 1451 nfs4_stateid stateid; 1452 }; 1453 1454 struct nfs41_free_stateid_res { 1455 struct nfs4_sequence_res seq_res; 1456 unsigned int status; 1457 }; 1458 1459 #else 1460 1461 struct pnfs_ds_commit_info { 1462 }; 1463 1464 #endif /* CONFIG_NFS_V4_1 */ 1465 1466 #ifdef CONFIG_NFS_V4_2 1467 struct nfs42_falloc_args { 1468 struct nfs4_sequence_args seq_args; 1469 1470 struct nfs_fh *falloc_fh; 1471 nfs4_stateid falloc_stateid; 1472 u64 falloc_offset; 1473 u64 falloc_length; 1474 const u32 *falloc_bitmask; 1475 }; 1476 1477 struct nfs42_falloc_res { 1478 struct nfs4_sequence_res seq_res; 1479 unsigned int status; 1480 1481 struct nfs_fattr *falloc_fattr; 1482 const struct nfs_server *falloc_server; 1483 }; 1484 1485 struct nfs42_copy_args { 1486 struct nfs4_sequence_args seq_args; 1487 1488 struct nfs_fh *src_fh; 1489 nfs4_stateid src_stateid; 1490 u64 src_pos; 1491 1492 struct nfs_fh *dst_fh; 1493 nfs4_stateid dst_stateid; 1494 u64 dst_pos; 1495 1496 u64 count; 1497 bool sync; 1498 struct nl4_server *cp_src; 1499 }; 1500 1501 struct nfs42_write_res { 1502 nfs4_stateid stateid; 1503 u64 count; 1504 struct nfs_writeverf verifier; 1505 }; 1506 1507 struct nfs42_copy_res { 1508 struct nfs4_sequence_res seq_res; 1509 struct nfs42_write_res write_res; 1510 bool consecutive; 1511 bool synchronous; 1512 struct nfs_commitres commit_res; 1513 }; 1514 1515 struct nfs42_offload_status_args { 1516 struct nfs4_sequence_args osa_seq_args; 1517 struct nfs_fh *osa_src_fh; 1518 nfs4_stateid osa_stateid; 1519 }; 1520 1521 struct nfs42_offload_status_res { 1522 struct nfs4_sequence_res osr_seq_res; 1523 uint64_t osr_count; 1524 int osr_status; 1525 }; 1526 1527 struct nfs42_copy_notify_args { 1528 struct nfs4_sequence_args cna_seq_args; 1529 1530 struct nfs_fh *cna_src_fh; 1531 nfs4_stateid cna_src_stateid; 1532 struct nl4_server cna_dst; 1533 }; 1534 1535 struct nfs42_copy_notify_res { 1536 struct nfs4_sequence_res cnr_seq_res; 1537 1538 struct nfstime4 cnr_lease_time; 1539 nfs4_stateid cnr_stateid; 1540 struct nl4_server cnr_src; 1541 }; 1542 1543 struct nfs42_seek_args { 1544 struct nfs4_sequence_args seq_args; 1545 1546 struct nfs_fh *sa_fh; 1547 nfs4_stateid sa_stateid; 1548 u64 sa_offset; 1549 u32 sa_what; 1550 }; 1551 1552 struct nfs42_seek_res { 1553 struct nfs4_sequence_res seq_res; 1554 unsigned int status; 1555 1556 u32 sr_eof; 1557 u64 sr_offset; 1558 }; 1559 1560 struct nfs42_setxattrargs { 1561 struct nfs4_sequence_args seq_args; 1562 struct nfs_fh *fh; 1563 const u32 *bitmask; 1564 const char *xattr_name; 1565 u32 xattr_flags; 1566 size_t xattr_len; 1567 struct page **xattr_pages; 1568 }; 1569 1570 struct nfs42_setxattrres { 1571 struct nfs4_sequence_res seq_res; 1572 struct nfs4_change_info cinfo; 1573 struct nfs_fattr *fattr; 1574 const struct nfs_server *server; 1575 }; 1576 1577 struct nfs42_getxattrargs { 1578 struct nfs4_sequence_args seq_args; 1579 struct nfs_fh *fh; 1580 const char *xattr_name; 1581 size_t xattr_len; 1582 struct page **xattr_pages; 1583 }; 1584 1585 struct nfs42_getxattrres { 1586 struct nfs4_sequence_res seq_res; 1587 size_t xattr_len; 1588 }; 1589 1590 struct nfs42_listxattrsargs { 1591 struct nfs4_sequence_args seq_args; 1592 struct nfs_fh *fh; 1593 u32 count; 1594 u64 cookie; 1595 struct page **xattr_pages; 1596 }; 1597 1598 struct nfs42_listxattrsres { 1599 struct nfs4_sequence_res seq_res; 1600 struct page *scratch; 1601 void *xattr_buf; 1602 size_t xattr_len; 1603 u64 cookie; 1604 bool eof; 1605 size_t copied; 1606 }; 1607 1608 struct nfs42_removexattrargs { 1609 struct nfs4_sequence_args seq_args; 1610 struct nfs_fh *fh; 1611 const char *xattr_name; 1612 }; 1613 1614 struct nfs42_removexattrres { 1615 struct nfs4_sequence_res seq_res; 1616 struct nfs4_change_info cinfo; 1617 }; 1618 1619 #endif /* CONFIG_NFS_V4_2 */ 1620 1621 struct nfs_page; 1622 1623 #define NFS_PAGEVEC_SIZE (8U) 1624 1625 struct nfs_page_array { 1626 struct page **pagevec; 1627 unsigned int npages; /* Max length of pagevec */ 1628 struct page *page_array[NFS_PAGEVEC_SIZE]; 1629 }; 1630 1631 /* used as flag bits in nfs_pgio_header */ 1632 enum { 1633 NFS_IOHDR_ERROR = 0, 1634 NFS_IOHDR_EOF, 1635 NFS_IOHDR_REDO, 1636 NFS_IOHDR_STAT, 1637 NFS_IOHDR_RESEND_PNFS, 1638 NFS_IOHDR_RESEND_MDS, 1639 NFS_IOHDR_UNSTABLE_WRITES, 1640 }; 1641 1642 struct nfs_io_completion; 1643 struct nfs_pgio_header { 1644 struct inode *inode; 1645 const struct cred *cred; 1646 struct list_head pages; 1647 struct nfs_page *req; 1648 struct nfs_writeverf verf; /* Used for writes */ 1649 fmode_t rw_mode; 1650 struct pnfs_layout_segment *lseg; 1651 loff_t io_start; 1652 const struct rpc_call_ops *mds_ops; 1653 void (*release) (struct nfs_pgio_header *hdr); 1654 const struct nfs_pgio_completion_ops *completion_ops; 1655 const struct nfs_rw_ops *rw_ops; 1656 struct nfs_io_completion *io_completion; 1657 struct nfs_direct_req *dreq; 1658 #ifdef CONFIG_NFS_FSCACHE 1659 void *netfs; 1660 #endif 1661 1662 int pnfs_error; 1663 int error; /* merge with pnfs_error */ 1664 unsigned int good_bytes; /* boundary of good data */ 1665 unsigned long flags; 1666 1667 /* 1668 * rpc data 1669 */ 1670 struct rpc_task task; 1671 struct nfs_fattr fattr; 1672 struct nfs_pgio_args args; /* argument struct */ 1673 struct nfs_pgio_res res; /* result struct */ 1674 unsigned long timestamp; /* For lease renewal */ 1675 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1676 __u64 mds_offset; /* Filelayout dense stripe */ 1677 struct nfs_page_array page_array; 1678 struct nfs_client *ds_clp; /* pNFS data server */ 1679 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1680 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1681 }; 1682 1683 struct nfs_mds_commit_info { 1684 atomic_t rpcs_out; 1685 atomic_long_t ncommit; 1686 struct list_head list; 1687 }; 1688 1689 struct nfs_commit_info; 1690 struct nfs_commit_data; 1691 struct nfs_inode; 1692 struct nfs_commit_completion_ops { 1693 void (*completion) (struct nfs_commit_data *data); 1694 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1695 }; 1696 1697 struct nfs_commit_info { 1698 struct inode *inode; /* Needed for inode->i_lock */ 1699 struct nfs_mds_commit_info *mds; 1700 struct pnfs_ds_commit_info *ds; 1701 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1702 const struct nfs_commit_completion_ops *completion_ops; 1703 }; 1704 1705 struct nfs_commit_data { 1706 struct rpc_task task; 1707 struct inode *inode; 1708 const struct cred *cred; 1709 struct nfs_fattr fattr; 1710 struct nfs_writeverf verf; 1711 struct list_head pages; /* Coalesced requests we wish to flush */ 1712 struct list_head list; /* lists of struct nfs_write_data */ 1713 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1714 struct nfs_commitargs args; /* argument struct */ 1715 struct nfs_commitres res; /* result struct */ 1716 struct nfs_open_context *context; 1717 struct pnfs_layout_segment *lseg; 1718 struct nfs_client *ds_clp; /* pNFS data server */ 1719 int ds_commit_index; 1720 loff_t lwb; 1721 const struct rpc_call_ops *mds_ops; 1722 const struct nfs_commit_completion_ops *completion_ops; 1723 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1724 unsigned long flags; 1725 }; 1726 1727 struct nfs_pgio_completion_ops { 1728 void (*error_cleanup)(struct list_head *head, int); 1729 void (*init_hdr)(struct nfs_pgio_header *hdr); 1730 void (*completion)(struct nfs_pgio_header *hdr); 1731 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1732 }; 1733 1734 struct nfs_unlinkdata { 1735 struct nfs_removeargs args; 1736 struct nfs_removeres res; 1737 struct dentry *dentry; 1738 wait_queue_head_t wq; 1739 const struct cred *cred; 1740 struct nfs_fattr dir_attr; 1741 long timeout; 1742 }; 1743 1744 struct nfs_renamedata { 1745 struct nfs_renameargs args; 1746 struct nfs_renameres res; 1747 struct rpc_task task; 1748 const struct cred *cred; 1749 struct inode *old_dir; 1750 struct dentry *old_dentry; 1751 struct nfs_fattr old_fattr; 1752 struct inode *new_dir; 1753 struct dentry *new_dentry; 1754 struct nfs_fattr new_fattr; 1755 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1756 long timeout; 1757 bool cancelled; 1758 }; 1759 1760 struct nfs_access_entry; 1761 struct nfs_client; 1762 struct rpc_timeout; 1763 struct nfs_subversion; 1764 struct nfs_mount_info; 1765 struct nfs_client_initdata; 1766 struct nfs_pageio_descriptor; 1767 struct fs_context; 1768 1769 /* 1770 * RPC procedure vector for NFSv2/NFSv3 demuxing 1771 */ 1772 struct nfs_rpc_ops { 1773 u32 version; /* Protocol version */ 1774 const struct dentry_operations *dentry_ops; 1775 const struct inode_operations *dir_inode_ops; 1776 const struct inode_operations *file_inode_ops; 1777 const struct file_operations *file_ops; 1778 const struct nlmclnt_operations *nlmclnt_ops; 1779 1780 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1781 struct nfs_fsinfo *); 1782 int (*submount) (struct fs_context *, struct nfs_server *); 1783 int (*try_get_tree) (struct fs_context *); 1784 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1785 struct nfs_fattr *, struct inode *); 1786 int (*setattr) (struct dentry *, struct nfs_fattr *, 1787 struct iattr *); 1788 int (*lookup) (struct inode *, struct dentry *, 1789 struct nfs_fh *, struct nfs_fattr *); 1790 int (*lookupp) (struct inode *, struct nfs_fh *, 1791 struct nfs_fattr *); 1792 int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *); 1793 int (*readlink)(struct inode *, struct page *, unsigned int, 1794 unsigned int); 1795 int (*create) (struct inode *, struct dentry *, 1796 struct iattr *, int); 1797 int (*remove) (struct inode *, struct dentry *); 1798 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1799 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1800 int (*unlink_done) (struct rpc_task *, struct inode *); 1801 void (*rename_setup) (struct rpc_message *msg, 1802 struct dentry *old_dentry, 1803 struct dentry *new_dentry); 1804 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1805 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1806 int (*link) (struct inode *, struct inode *, const struct qstr *); 1807 int (*symlink) (struct inode *, struct dentry *, struct folio *, 1808 unsigned int, struct iattr *); 1809 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1810 int (*rmdir) (struct inode *, const struct qstr *); 1811 int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); 1812 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1813 dev_t); 1814 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1815 struct nfs_fsstat *); 1816 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1817 struct nfs_fsinfo *); 1818 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1819 struct nfs_pathconf *); 1820 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1821 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1822 int (*pgio_rpc_prepare)(struct rpc_task *, 1823 struct nfs_pgio_header *); 1824 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1825 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1826 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1827 struct rpc_clnt **); 1828 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1829 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1830 struct rpc_clnt **); 1831 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1832 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1833 int (*lock)(struct file *, int, struct file_lock *); 1834 int (*lock_check_bounds)(const struct file_lock *); 1835 void (*clear_acl_cache)(struct inode *); 1836 void (*close_context)(struct nfs_open_context *ctx, int); 1837 struct inode * (*open_context) (struct inode *dir, 1838 struct nfs_open_context *ctx, 1839 int open_flags, 1840 struct iattr *iattr, 1841 int *); 1842 int (*have_delegation)(struct inode *, fmode_t, int); 1843 int (*return_delegation)(struct inode *); 1844 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1845 struct nfs_client *(*init_client) (struct nfs_client *, 1846 const struct nfs_client_initdata *); 1847 void (*free_client) (struct nfs_client *); 1848 struct nfs_server *(*create_server)(struct fs_context *); 1849 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1850 struct nfs_fattr *, rpc_authflavor_t); 1851 int (*discover_trunking)(struct nfs_server *, struct nfs_fh *); 1852 void (*enable_swap)(struct inode *inode); 1853 void (*disable_swap)(struct inode *inode); 1854 }; 1855 1856 /* 1857 * Helper functions used by NFS client and/or server 1858 */ encode_opaque_fixed(struct xdr_stream * xdr,const void * buf,size_t len)1859 static inline void encode_opaque_fixed(struct xdr_stream *xdr, 1860 const void *buf, size_t len) 1861 { 1862 WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); 1863 } 1864 decode_opaque_fixed(struct xdr_stream * xdr,void * buf,size_t len)1865 static inline int decode_opaque_fixed(struct xdr_stream *xdr, 1866 void *buf, size_t len) 1867 { 1868 ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); 1869 if (unlikely(ret < 0)) 1870 return -EIO; 1871 return 0; 1872 } 1873 1874 /* 1875 * Function vectors etc. for the NFS client 1876 */ 1877 extern const struct nfs_rpc_ops nfs_v2_clientops; 1878 extern const struct nfs_rpc_ops nfs_v3_clientops; 1879 extern const struct nfs_rpc_ops nfs_v4_clientops; 1880 extern const struct rpc_version nfs_version2; 1881 extern const struct rpc_version nfs_version3; 1882 extern const struct rpc_version nfs_version4; 1883 1884 extern const struct rpc_version nfsacl_version3; 1885 extern const struct rpc_program nfsacl_program; 1886 1887 #endif /* _LINUX_NFS_XDR_H */ 1888