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 /* aux_flags in nfs_fattr */ 21 #define NFS_AUX_UNCACHEABLE_FILE_DATA BIT(0) 22 23 struct nfs4_string { 24 unsigned int len; 25 char *data; 26 }; 27 28 struct nfs_fsid { 29 uint64_t major; 30 uint64_t minor; 31 }; 32 33 /* 34 * Helper for checking equality between 2 fsids. 35 */ 36 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 37 { 38 return a->major == b->major && a->minor == b->minor; 39 } 40 41 struct nfs4_threshold { 42 __u32 bm; 43 __u32 l_type; 44 __u64 rd_sz; 45 __u64 wr_sz; 46 __u64 rd_io_sz; 47 __u64 wr_io_sz; 48 }; 49 50 struct nfs_fattr { 51 __u64 valid; /* which fields are valid */ 52 umode_t mode; 53 __u32 nlink; 54 kuid_t uid; 55 kgid_t gid; 56 dev_t rdev; 57 __u64 size; 58 union { 59 struct { 60 __u32 blocksize; 61 __u32 blocks; 62 } nfs2; 63 struct { 64 __u64 used; 65 } nfs3; 66 } du; 67 struct nfs_fsid fsid; 68 __u64 fileid; 69 __u64 mounted_on_fileid; 70 struct timespec64 atime; 71 struct timespec64 mtime; 72 struct timespec64 ctime; 73 struct timespec64 btime; 74 __u32 aux_flags; /* NFSv4 auxiliary flags bitfield */ 75 __u64 change_attr; /* NFSv4 change attribute */ 76 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 77 __u64 pre_size; /* pre_op_attr.size */ 78 struct timespec64 pre_mtime; /* pre_op_attr.mtime */ 79 struct timespec64 pre_ctime; /* pre_op_attr.ctime */ 80 unsigned long time_start; 81 unsigned long gencount; 82 struct nfs4_string *owner_name; 83 struct nfs4_string *group_name; 84 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */ 85 struct nfs4_label *label; 86 }; 87 88 #define NFS_ATTR_FATTR_TYPE BIT_ULL(0) 89 #define NFS_ATTR_FATTR_MODE BIT_ULL(1) 90 #define NFS_ATTR_FATTR_NLINK BIT_ULL(2) 91 #define NFS_ATTR_FATTR_OWNER BIT_ULL(3) 92 #define NFS_ATTR_FATTR_GROUP BIT_ULL(4) 93 #define NFS_ATTR_FATTR_RDEV BIT_ULL(5) 94 #define NFS_ATTR_FATTR_SIZE BIT_ULL(6) 95 #define NFS_ATTR_FATTR_PRESIZE BIT_ULL(7) 96 #define NFS_ATTR_FATTR_BLOCKS_USED BIT_ULL(8) 97 #define NFS_ATTR_FATTR_SPACE_USED BIT_ULL(9) 98 #define NFS_ATTR_FATTR_FSID BIT_ULL(10) 99 #define NFS_ATTR_FATTR_FILEID BIT_ULL(11) 100 #define NFS_ATTR_FATTR_ATIME BIT_ULL(12) 101 #define NFS_ATTR_FATTR_MTIME BIT_ULL(13) 102 #define NFS_ATTR_FATTR_CTIME BIT_ULL(14) 103 #define NFS_ATTR_FATTR_PREMTIME BIT_ULL(15) 104 #define NFS_ATTR_FATTR_PRECTIME BIT_ULL(16) 105 #define NFS_ATTR_FATTR_CHANGE BIT_ULL(17) 106 #define NFS_ATTR_FATTR_PRECHANGE BIT_ULL(18) 107 #define NFS_ATTR_FATTR_V4_LOCATIONS BIT_ULL(19) 108 #define NFS_ATTR_FATTR_V4_REFERRAL BIT_ULL(20) 109 #define NFS_ATTR_FATTR_MOUNTPOINT BIT_ULL(21) 110 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID BIT_ULL(22) 111 #define NFS_ATTR_FATTR_OWNER_NAME BIT_ULL(23) 112 #define NFS_ATTR_FATTR_GROUP_NAME BIT_ULL(24) 113 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL BIT_ULL(25) 114 #define NFS_ATTR_FATTR_BTIME BIT_ULL(26) 115 #define NFS_ATTR_FATTR_UNCACHEABLE_FILE_DATA BIT_ULL(27) 116 117 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 118 | NFS_ATTR_FATTR_MODE \ 119 | NFS_ATTR_FATTR_NLINK \ 120 | NFS_ATTR_FATTR_OWNER \ 121 | NFS_ATTR_FATTR_GROUP \ 122 | NFS_ATTR_FATTR_RDEV \ 123 | NFS_ATTR_FATTR_SIZE \ 124 | NFS_ATTR_FATTR_FSID \ 125 | NFS_ATTR_FATTR_FILEID \ 126 | NFS_ATTR_FATTR_ATIME \ 127 | NFS_ATTR_FATTR_MTIME \ 128 | NFS_ATTR_FATTR_CTIME \ 129 | NFS_ATTR_FATTR_CHANGE) 130 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 131 | NFS_ATTR_FATTR_BLOCKS_USED) 132 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 133 | NFS_ATTR_FATTR_SPACE_USED) 134 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 135 | NFS_ATTR_FATTR_SPACE_USED \ 136 | NFS_ATTR_FATTR_BTIME \ 137 | NFS_ATTR_FATTR_V4_SECURITY_LABEL \ 138 | NFS_ATTR_FATTR_UNCACHEABLE_FILE_DATA) 139 140 /* 141 * Maximal number of supported layout drivers. 142 */ 143 #define NFS_MAX_LAYOUT_TYPES 8 144 145 /* 146 * Info on the file system 147 */ 148 struct nfs_fsinfo { 149 struct nfs_fattr *fattr; /* Post-op attributes */ 150 __u32 rtmax; /* max. read transfer size */ 151 __u32 rtpref; /* pref. read transfer size */ 152 __u32 rtmult; /* reads should be multiple of this */ 153 __u32 wtmax; /* max. write transfer size */ 154 __u32 wtpref; /* pref. write transfer size */ 155 __u32 wtmult; /* writes should be multiple of this */ 156 __u32 dtpref; /* pref. readdir transfer size */ 157 __u64 maxfilesize; 158 struct timespec64 time_delta; /* server time granularity */ 159 __u32 lease_time; /* in seconds */ 160 __u32 nlayouttypes; /* number of layouttypes */ 161 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 162 __u32 blksize; /* preferred pnfs io block size */ 163 __u32 clone_blksize; /* granularity of a CLONE operation */ 164 enum nfs4_change_attr_type 165 change_attr_type; /* Info about change attr */ 166 __u32 xattr_support; /* User xattrs supported */ 167 }; 168 169 struct nfs_fsstat { 170 struct nfs_fattr *fattr; /* Post-op attributes */ 171 __u64 tbytes; /* total size in bytes */ 172 __u64 fbytes; /* # of free bytes */ 173 __u64 abytes; /* # of bytes available to user */ 174 __u64 tfiles; /* # of files */ 175 __u64 ffiles; /* # of free files */ 176 __u64 afiles; /* # of files available to user */ 177 }; 178 179 struct nfs2_fsstat { 180 __u32 tsize; /* Server transfer size */ 181 __u32 bsize; /* Filesystem block size */ 182 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 183 __u32 bfree; /* No. of free "bsize" blocks */ 184 __u32 bavail; /* No. of available "bsize" blocks */ 185 }; 186 187 struct nfs_pathconf { 188 struct nfs_fattr *fattr; /* Post-op attributes */ 189 __u32 max_link; /* max # of hard links */ 190 __u32 max_namelen; /* max name length */ 191 bool case_insensitive; 192 bool case_preserving; 193 }; 194 195 struct nfs4_change_info { 196 u32 atomic; 197 u64 before; 198 u64 after; 199 }; 200 201 struct nfs_seqid; 202 203 /* nfs41 sessions channel attributes */ 204 struct nfs4_channel_attrs { 205 u32 max_rqst_sz; 206 u32 max_resp_sz; 207 u32 max_resp_sz_cached; 208 u32 max_ops; 209 u32 max_reqs; 210 }; 211 212 struct nfs4_slot; 213 struct nfs4_sequence_args { 214 struct nfs4_slot *sa_slot; 215 u8 sa_cache_this : 1, 216 sa_privileged : 1; 217 }; 218 219 struct nfs4_sequence_res { 220 const struct nfs4_sequence_slot_ops *sr_slot_ops; 221 struct nfs4_slot *sr_slot; /* slot used to send request */ 222 unsigned long sr_timestamp; 223 int sr_status; /* sequence operation status */ 224 u32 sr_status_flags; 225 u32 sr_highest_slotid; 226 u32 sr_target_highest_slotid; 227 }; 228 229 struct nfs4_get_lease_time_args { 230 struct nfs4_sequence_args la_seq_args; 231 }; 232 233 struct nfs4_get_lease_time_res { 234 struct nfs4_sequence_res lr_seq_res; 235 struct nfs_fsinfo *lr_fsinfo; 236 }; 237 238 struct xdr_stream; 239 struct nfs4_xdr_opaque_data; 240 241 struct nfs4_xdr_opaque_ops { 242 void (*encode)(struct xdr_stream *, const void *args, 243 const struct nfs4_xdr_opaque_data *); 244 void (*free)(struct nfs4_xdr_opaque_data *); 245 }; 246 247 struct nfs4_xdr_opaque_data { 248 const struct nfs4_xdr_opaque_ops *ops; 249 void *data; 250 }; 251 252 #define PNFS_LAYOUT_MAXSIZE 4096 253 254 struct nfs4_layoutdriver_data { 255 struct page **pages; 256 __u32 pglen; 257 __u32 len; 258 }; 259 260 struct pnfs_layout_range { 261 u32 iomode; 262 u64 offset; 263 u64 length; 264 }; 265 266 struct nfs4_layoutget_args { 267 struct nfs4_sequence_args seq_args; 268 __u32 type; 269 struct pnfs_layout_range range; 270 __u64 minlength; 271 __u32 maxcount; 272 struct inode *inode; 273 struct nfs_open_context *ctx; 274 nfs4_stateid stateid; 275 struct nfs4_layoutdriver_data layout; 276 }; 277 278 struct nfs4_layoutget_res { 279 struct nfs4_sequence_res seq_res; 280 int status; 281 __u32 return_on_close; 282 struct pnfs_layout_range range; 283 __u32 type; 284 nfs4_stateid stateid; 285 struct nfs4_layoutdriver_data *layoutp; 286 }; 287 288 struct nfs4_layoutget { 289 struct nfs4_layoutget_args args; 290 struct nfs4_layoutget_res res; 291 const struct cred *cred; 292 struct pnfs_layout_hdr *lo; 293 gfp_t gfp_flags; 294 }; 295 296 struct nfs4_getdeviceinfo_args { 297 struct nfs4_sequence_args seq_args; 298 struct pnfs_device *pdev; 299 __u32 notify_types; 300 }; 301 302 struct nfs4_getdeviceinfo_res { 303 struct nfs4_sequence_res seq_res; 304 struct pnfs_device *pdev; 305 __u32 notification; 306 }; 307 308 struct nfs4_layoutcommit_args { 309 struct nfs4_sequence_args seq_args; 310 nfs4_stateid stateid; 311 __u64 lastbytewritten; 312 struct inode *inode; 313 const u32 *bitmask; 314 size_t layoutupdate_len; 315 struct page *layoutupdate_page; 316 struct page **layoutupdate_pages; 317 __be32 *start_p; 318 }; 319 320 struct nfs4_layoutcommit_res { 321 struct nfs4_sequence_res seq_res; 322 struct nfs_fattr *fattr; 323 const struct nfs_server *server; 324 int status; 325 }; 326 327 struct nfs4_layoutcommit_data { 328 struct rpc_task task; 329 struct nfs_fattr fattr; 330 struct list_head lseg_list; 331 const struct cred *cred; 332 struct inode *inode; 333 struct nfs4_layoutcommit_args args; 334 struct nfs4_layoutcommit_res res; 335 }; 336 337 struct nfs4_layoutreturn_args { 338 struct nfs4_sequence_args seq_args; 339 struct pnfs_layout_hdr *layout; 340 struct inode *inode; 341 struct pnfs_layout_range range; 342 nfs4_stateid stateid; 343 __u32 layout_type; 344 struct nfs4_xdr_opaque_data *ld_private; 345 }; 346 347 struct nfs4_layoutreturn_res { 348 struct nfs4_sequence_res seq_res; 349 u32 lrs_present; 350 nfs4_stateid stateid; 351 }; 352 353 struct nfs4_layoutreturn { 354 struct nfs4_layoutreturn_args args; 355 struct nfs4_layoutreturn_res res; 356 const struct cred *cred; 357 struct nfs_client *clp; 358 struct inode *inode; 359 int rpc_status; 360 struct nfs4_xdr_opaque_data ld_private; 361 }; 362 363 #define PNFS_LAYOUTSTATS_MAXSIZE 384 364 365 struct nfs42_layoutstat_args; 366 struct nfs42_layoutstat_devinfo; 367 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 368 struct nfs42_layoutstat_args *, 369 struct nfs42_layoutstat_devinfo *); 370 371 /* Per file per deviceid layoutstats */ 372 struct nfs42_layoutstat_devinfo { 373 struct nfs4_deviceid dev_id; 374 __u64 offset; 375 __u64 length; 376 __u64 read_count; 377 __u64 read_bytes; 378 __u64 write_count; 379 __u64 write_bytes; 380 __u32 layout_type; 381 struct nfs4_xdr_opaque_data ld_private; 382 }; 383 384 struct nfs42_layoutstat_args { 385 struct nfs4_sequence_args seq_args; 386 struct nfs_fh *fh; 387 struct inode *inode; 388 nfs4_stateid stateid; 389 int num_dev; 390 struct nfs42_layoutstat_devinfo *devinfo; 391 }; 392 393 struct nfs42_layoutstat_res { 394 struct nfs4_sequence_res seq_res; 395 int num_dev; 396 int rpc_status; 397 }; 398 399 struct nfs42_layoutstat_data { 400 struct inode *inode; 401 struct nfs42_layoutstat_args args; 402 struct nfs42_layoutstat_res res; 403 }; 404 405 struct nfs42_device_error { 406 struct nfs4_deviceid dev_id; 407 int status; 408 enum nfs_opnum4 opnum; 409 }; 410 411 struct nfs42_layout_error { 412 __u64 offset; 413 __u64 length; 414 nfs4_stateid stateid; 415 struct nfs42_device_error errors[1]; 416 }; 417 418 #define NFS42_LAYOUTERROR_MAX 5 419 420 struct nfs42_layouterror_args { 421 struct nfs4_sequence_args seq_args; 422 struct inode *inode; 423 unsigned int num_errors; 424 struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX]; 425 }; 426 427 struct nfs42_layouterror_res { 428 struct nfs4_sequence_res seq_res; 429 unsigned int num_errors; 430 int rpc_status; 431 }; 432 433 struct nfs42_layouterror_data { 434 struct nfs42_layouterror_args args; 435 struct nfs42_layouterror_res res; 436 struct inode *inode; 437 struct pnfs_layout_segment *lseg; 438 }; 439 440 struct nfs42_clone_args { 441 struct nfs4_sequence_args seq_args; 442 struct nfs_fh *src_fh; 443 struct nfs_fh *dst_fh; 444 nfs4_stateid src_stateid; 445 nfs4_stateid dst_stateid; 446 __u64 src_offset; 447 __u64 dst_offset; 448 __u64 count; 449 const u32 *dst_bitmask; 450 }; 451 452 struct nfs42_clone_res { 453 struct nfs4_sequence_res seq_res; 454 unsigned int rpc_status; 455 struct nfs_fattr *dst_fattr; 456 const struct nfs_server *server; 457 }; 458 459 struct stateowner_id { 460 __u64 create_time; 461 __u64 uniquifier; 462 }; 463 464 struct nfs4_open_delegation { 465 __u32 open_delegation_type; 466 union { 467 struct { 468 fmode_t type; 469 __u32 do_recall; 470 nfs4_stateid stateid; 471 unsigned long pagemod_limit; 472 }; 473 struct { 474 __u32 why_no_delegation; 475 __u32 will_notify; 476 }; 477 }; 478 }; 479 480 /* 481 * Arguments to the open call. 482 */ 483 struct nfs_openargs { 484 struct nfs4_sequence_args seq_args; 485 const struct nfs_fh * fh; 486 struct nfs_seqid * seqid; 487 int open_flags; 488 fmode_t fmode; 489 u32 share_access; 490 u32 access; 491 __u64 clientid; 492 struct stateowner_id id; 493 union { 494 struct { 495 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 496 nfs4_verifier verifier; /* EXCLUSIVE */ 497 }; 498 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 499 __u32 delegation_type; /* CLAIM_PREVIOUS */ 500 } u; 501 const struct qstr * name; 502 const struct nfs_server *server; /* Needed for ID mapping */ 503 const u32 * bitmask; 504 const u32 * open_bitmap; 505 enum open_claim_type4 claim; 506 enum createmode4 createmode; 507 const struct nfs4_label *label; 508 umode_t umask; 509 struct nfs4_layoutget_args *lg_args; 510 }; 511 512 struct nfs_openres { 513 struct nfs4_sequence_res seq_res; 514 nfs4_stateid stateid; 515 struct nfs_fh fh; 516 struct nfs4_change_info cinfo; 517 __u32 rflags; 518 struct nfs_fattr * f_attr; 519 struct nfs_seqid * seqid; 520 const struct nfs_server *server; 521 __u32 attrset[NFS4_BITMAP_SIZE]; 522 struct nfs4_string *owner; 523 struct nfs4_string *group_owner; 524 struct nfs4_open_delegation delegation; 525 __u32 access_request; 526 __u32 access_supported; 527 __u32 access_result; 528 struct nfs4_layoutget_res *lg_res; 529 }; 530 531 /* 532 * Arguments to the open_confirm call. 533 */ 534 struct nfs_open_confirmargs { 535 struct nfs4_sequence_args seq_args; 536 const struct nfs_fh * fh; 537 nfs4_stateid * stateid; 538 struct nfs_seqid * seqid; 539 }; 540 541 struct nfs_open_confirmres { 542 struct nfs4_sequence_res seq_res; 543 nfs4_stateid stateid; 544 struct nfs_seqid * seqid; 545 }; 546 547 /* 548 * Arguments to the close call. 549 */ 550 struct nfs_closeargs { 551 struct nfs4_sequence_args seq_args; 552 struct nfs_fh * fh; 553 nfs4_stateid stateid; 554 struct nfs_seqid * seqid; 555 fmode_t fmode; 556 u32 share_access; 557 const u32 * bitmask; 558 u32 bitmask_store[NFS_BITMASK_SZ]; 559 struct nfs4_layoutreturn_args *lr_args; 560 }; 561 562 struct nfs_closeres { 563 struct nfs4_sequence_res seq_res; 564 nfs4_stateid stateid; 565 struct nfs_fattr * fattr; 566 struct nfs_seqid * seqid; 567 const struct nfs_server *server; 568 struct nfs4_layoutreturn_res *lr_res; 569 int lr_ret; 570 }; 571 /* 572 * * Arguments to the lock,lockt, and locku call. 573 * */ 574 struct nfs_lowner { 575 __u64 clientid; 576 __u64 id; 577 dev_t s_dev; 578 }; 579 580 struct nfs_lock_args { 581 struct nfs4_sequence_args seq_args; 582 struct nfs_fh * fh; 583 struct file_lock * fl; 584 struct nfs_seqid * lock_seqid; 585 nfs4_stateid lock_stateid; 586 struct nfs_seqid * open_seqid; 587 nfs4_stateid open_stateid; 588 struct nfs_lowner lock_owner; 589 unsigned char block : 1; 590 unsigned char reclaim : 1; 591 unsigned char new_lock_owner : 1; 592 }; 593 594 struct nfs_lock_res { 595 struct nfs4_sequence_res seq_res; 596 nfs4_stateid stateid; 597 struct nfs_seqid * lock_seqid; 598 struct nfs_seqid * open_seqid; 599 }; 600 601 struct nfs_locku_args { 602 struct nfs4_sequence_args seq_args; 603 struct nfs_fh * fh; 604 struct file_lock * fl; 605 struct nfs_seqid * seqid; 606 nfs4_stateid stateid; 607 }; 608 609 struct nfs_locku_res { 610 struct nfs4_sequence_res seq_res; 611 nfs4_stateid stateid; 612 struct nfs_seqid * seqid; 613 }; 614 615 struct nfs_lockt_args { 616 struct nfs4_sequence_args seq_args; 617 struct nfs_fh * fh; 618 struct file_lock * fl; 619 struct nfs_lowner lock_owner; 620 }; 621 622 struct nfs_lockt_res { 623 struct nfs4_sequence_res seq_res; 624 struct file_lock * denied; /* LOCK, LOCKT failed */ 625 }; 626 627 struct nfs_release_lockowner_args { 628 struct nfs4_sequence_args seq_args; 629 struct nfs_lowner lock_owner; 630 }; 631 632 struct nfs_release_lockowner_res { 633 struct nfs4_sequence_res seq_res; 634 }; 635 636 struct nfs4_delegattr { 637 struct timespec64 atime; 638 struct timespec64 mtime; 639 bool atime_set; 640 bool mtime_set; 641 }; 642 643 struct nfs4_delegreturnargs { 644 struct nfs4_sequence_args seq_args; 645 const struct nfs_fh *fhandle; 646 const nfs4_stateid *stateid; 647 const u32 *bitmask; 648 u32 bitmask_store[NFS_BITMASK_SZ]; 649 struct nfs4_layoutreturn_args *lr_args; 650 struct nfs4_delegattr *sattr_args; 651 }; 652 653 struct nfs4_delegreturnres { 654 struct nfs4_sequence_res seq_res; 655 struct nfs_fattr * fattr; 656 struct nfs_server *server; 657 struct nfs4_layoutreturn_res *lr_res; 658 int lr_ret; 659 bool sattr_res; 660 int sattr_ret; 661 }; 662 663 /* 664 * Arguments to the write call. 665 */ 666 struct nfs_write_verifier { 667 char data[8]; 668 }; 669 670 struct nfs_writeverf { 671 struct nfs_write_verifier verifier; 672 enum nfs3_stable_how committed; 673 }; 674 675 /* 676 * Arguments shared by the read and write call. 677 */ 678 struct nfs_pgio_args { 679 struct nfs4_sequence_args seq_args; 680 struct nfs_fh * fh; 681 struct nfs_open_context *context; 682 struct nfs_lock_context *lock_context; 683 nfs4_stateid stateid; 684 __u64 offset; 685 __u32 count; 686 unsigned int pgbase; 687 struct page ** pages; 688 union { 689 unsigned int replen; /* used by read */ 690 struct { 691 const u32 * bitmask; /* used by write */ 692 u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */ 693 enum nfs3_stable_how stable; /* used by write */ 694 }; 695 }; 696 }; 697 698 struct nfs_pgio_res { 699 struct nfs4_sequence_res seq_res; 700 struct nfs_fattr * fattr; 701 __u64 count; 702 __u32 op_status; 703 union { 704 struct { 705 unsigned int replen; /* used by read */ 706 int eof; /* used by read */ 707 void * scratch; /* used by read */ 708 }; 709 struct { 710 struct nfs_writeverf * verf; /* used by write */ 711 const struct nfs_server *server; /* used by write */ 712 }; 713 }; 714 }; 715 716 /* 717 * Arguments to the commit call. 718 */ 719 struct nfs_commitargs { 720 struct nfs4_sequence_args seq_args; 721 struct nfs_fh *fh; 722 __u64 offset; 723 __u32 count; 724 const u32 *bitmask; 725 }; 726 727 struct nfs_commitres { 728 struct nfs4_sequence_res seq_res; 729 __u32 op_status; 730 struct nfs_fattr *fattr; 731 struct nfs_writeverf *verf; 732 const struct nfs_server *server; 733 }; 734 735 /* 736 * Common arguments to the unlink call 737 */ 738 struct nfs_removeargs { 739 struct nfs4_sequence_args seq_args; 740 const struct nfs_fh *fh; 741 struct qstr name; 742 }; 743 744 struct nfs_removeres { 745 struct nfs4_sequence_res seq_res; 746 struct nfs_server *server; 747 struct nfs_fattr *dir_attr; 748 struct nfs4_change_info cinfo; 749 }; 750 751 /* 752 * Common arguments to the rename call 753 */ 754 struct nfs_renameargs { 755 struct nfs4_sequence_args seq_args; 756 const struct nfs_fh *old_dir; 757 const struct nfs_fh *new_dir; 758 const struct qstr *old_name; 759 const struct qstr *new_name; 760 }; 761 762 struct nfs_renameres { 763 struct nfs4_sequence_res seq_res; 764 struct nfs_server *server; 765 struct nfs4_change_info old_cinfo; 766 struct nfs_fattr *old_fattr; 767 struct nfs4_change_info new_cinfo; 768 struct nfs_fattr *new_fattr; 769 }; 770 771 /* parsed sec= options */ 772 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 773 struct nfs_auth_info { 774 unsigned int flavor_len; 775 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 776 }; 777 778 /* 779 * Argument struct for decode_entry function 780 */ 781 struct nfs_entry { 782 __u64 ino; 783 __u64 cookie; 784 const char * name; 785 unsigned int len; 786 int eof; 787 struct nfs_fh * fh; 788 struct nfs_fattr * fattr; 789 unsigned char d_type; 790 struct nfs_server * server; 791 }; 792 793 struct nfs_readdir_arg { 794 struct dentry *dentry; 795 const struct cred *cred; 796 __be32 *verf; 797 u64 cookie; 798 struct page **pages; 799 unsigned int page_len; 800 bool plus; 801 }; 802 803 struct nfs_readdir_res { 804 __be32 *verf; 805 }; 806 807 /* 808 * The following types are for NFSv2 only. 809 */ 810 struct nfs_sattrargs { 811 struct nfs_fh * fh; 812 struct iattr * sattr; 813 }; 814 815 struct nfs_diropargs { 816 struct nfs_fh * fh; 817 const char * name; 818 unsigned int len; 819 }; 820 821 struct nfs_createargs { 822 struct nfs_fh * fh; 823 const char * name; 824 unsigned int len; 825 struct iattr * sattr; 826 }; 827 828 struct nfs_setattrargs { 829 struct nfs4_sequence_args seq_args; 830 struct nfs_fh * fh; 831 nfs4_stateid stateid; 832 struct iattr * iap; 833 const struct nfs_server * server; /* Needed for name mapping */ 834 const u32 * bitmask; 835 const struct nfs4_label *label; 836 }; 837 838 enum nfs4_acl_type { 839 NFS4ACL_NONE = 0, 840 NFS4ACL_ACL, 841 NFS4ACL_DACL, 842 NFS4ACL_SACL, 843 }; 844 845 struct nfs_setaclargs { 846 struct nfs4_sequence_args seq_args; 847 struct nfs_fh * fh; 848 enum nfs4_acl_type acl_type; 849 size_t acl_len; 850 struct page ** acl_pages; 851 }; 852 853 struct nfs_setaclres { 854 struct nfs4_sequence_res seq_res; 855 }; 856 857 struct nfs_getaclargs { 858 struct nfs4_sequence_args seq_args; 859 struct nfs_fh * fh; 860 enum nfs4_acl_type acl_type; 861 size_t acl_len; 862 struct page ** acl_pages; 863 }; 864 865 /* getxattr ACL interface flags */ 866 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 867 struct nfs_getaclres { 868 struct nfs4_sequence_res seq_res; 869 enum nfs4_acl_type acl_type; 870 size_t acl_len; 871 size_t acl_data_offset; 872 int acl_flags; 873 struct folio * acl_scratch; 874 }; 875 876 struct nfs_setattrres { 877 struct nfs4_sequence_res seq_res; 878 struct nfs_fattr * fattr; 879 const struct nfs_server * server; 880 }; 881 882 struct nfs_linkargs { 883 struct nfs_fh * fromfh; 884 struct nfs_fh * tofh; 885 const char * toname; 886 unsigned int tolen; 887 }; 888 889 struct nfs_symlinkargs { 890 struct nfs_fh * fromfh; 891 const char * fromname; 892 unsigned int fromlen; 893 struct page ** pages; 894 unsigned int pathlen; 895 struct iattr * sattr; 896 }; 897 898 struct nfs_readdirargs { 899 struct nfs_fh * fh; 900 __u32 cookie; 901 unsigned int count; 902 struct page ** pages; 903 }; 904 905 struct nfs3_getaclargs { 906 struct nfs_fh * fh; 907 int mask; 908 struct page ** pages; 909 }; 910 911 struct nfs3_setaclargs { 912 struct inode * inode; 913 int mask; 914 struct posix_acl * acl_access; 915 struct posix_acl * acl_default; 916 size_t len; 917 unsigned int npages; 918 struct page ** pages; 919 }; 920 921 struct nfs_diropok { 922 struct nfs_fh * fh; 923 struct nfs_fattr * fattr; 924 }; 925 926 struct nfs_readlinkargs { 927 struct nfs_fh * fh; 928 unsigned int pgbase; 929 unsigned int pglen; 930 struct page ** pages; 931 }; 932 933 struct nfs3_sattrargs { 934 struct nfs_fh * fh; 935 struct iattr * sattr; 936 unsigned int guard; 937 struct timespec64 guardtime; 938 }; 939 940 struct nfs3_diropargs { 941 struct nfs_fh * fh; 942 const char * name; 943 unsigned int len; 944 }; 945 946 struct nfs3_accessargs { 947 struct nfs_fh * fh; 948 __u32 access; 949 }; 950 951 struct nfs3_createargs { 952 struct nfs_fh * fh; 953 const char * name; 954 unsigned int len; 955 struct iattr * sattr; 956 enum nfs3_createmode createmode; 957 __be32 verifier[2]; 958 }; 959 960 struct nfs3_mkdirargs { 961 struct nfs_fh * fh; 962 const char * name; 963 unsigned int len; 964 struct iattr * sattr; 965 }; 966 967 struct nfs3_symlinkargs { 968 struct nfs_fh * fromfh; 969 const char * fromname; 970 unsigned int fromlen; 971 struct page ** pages; 972 unsigned int pathlen; 973 struct iattr * sattr; 974 }; 975 976 struct nfs3_mknodargs { 977 struct nfs_fh * fh; 978 const char * name; 979 unsigned int len; 980 enum nfs3_ftype type; 981 struct iattr * sattr; 982 dev_t rdev; 983 }; 984 985 struct nfs3_linkargs { 986 struct nfs_fh * fromfh; 987 struct nfs_fh * tofh; 988 const char * toname; 989 unsigned int tolen; 990 }; 991 992 struct nfs3_readdirargs { 993 struct nfs_fh * fh; 994 __u64 cookie; 995 __be32 verf[2]; 996 bool plus; 997 unsigned int count; 998 struct page ** pages; 999 }; 1000 1001 struct nfs3_diropres { 1002 struct nfs_fattr * dir_attr; 1003 struct nfs_fh * fh; 1004 struct nfs_fattr * fattr; 1005 }; 1006 1007 struct nfs3_accessres { 1008 struct nfs_fattr * fattr; 1009 __u32 access; 1010 }; 1011 1012 struct nfs3_readlinkargs { 1013 struct nfs_fh * fh; 1014 unsigned int pgbase; 1015 unsigned int pglen; 1016 struct page ** pages; 1017 }; 1018 1019 struct nfs3_linkres { 1020 struct nfs_fattr * dir_attr; 1021 struct nfs_fattr * fattr; 1022 }; 1023 1024 struct nfs3_readdirres { 1025 struct nfs_fattr * dir_attr; 1026 __be32 * verf; 1027 bool plus; 1028 }; 1029 1030 struct nfs3_getaclres { 1031 struct nfs_fattr * fattr; 1032 int mask; 1033 unsigned int acl_access_count; 1034 unsigned int acl_default_count; 1035 struct posix_acl * acl_access; 1036 struct posix_acl * acl_default; 1037 }; 1038 1039 #if IS_ENABLED(CONFIG_NFS_V4) 1040 1041 typedef u64 clientid4; 1042 1043 struct nfs4_accessargs { 1044 struct nfs4_sequence_args seq_args; 1045 const struct nfs_fh * fh; 1046 const u32 * bitmask; 1047 u32 access; 1048 }; 1049 1050 struct nfs4_accessres { 1051 struct nfs4_sequence_res seq_res; 1052 const struct nfs_server * server; 1053 struct nfs_fattr * fattr; 1054 u32 supported; 1055 u32 access; 1056 }; 1057 1058 struct nfs4_create_arg { 1059 struct nfs4_sequence_args seq_args; 1060 u32 ftype; 1061 union { 1062 struct { 1063 struct page ** pages; 1064 unsigned int len; 1065 } symlink; /* NF4LNK */ 1066 struct { 1067 u32 specdata1; 1068 u32 specdata2; 1069 } device; /* NF4BLK, NF4CHR */ 1070 } u; 1071 const struct qstr * name; 1072 const struct nfs_server * server; 1073 const struct iattr * attrs; 1074 const struct nfs_fh * dir_fh; 1075 const u32 * bitmask; 1076 const struct nfs4_label *label; 1077 umode_t umask; 1078 }; 1079 1080 struct nfs4_create_res { 1081 struct nfs4_sequence_res seq_res; 1082 const struct nfs_server * server; 1083 struct nfs_fh * fh; 1084 struct nfs_fattr * fattr; 1085 struct nfs4_change_info dir_cinfo; 1086 }; 1087 1088 struct nfs4_fsinfo_arg { 1089 struct nfs4_sequence_args seq_args; 1090 const struct nfs_fh * fh; 1091 const u32 * bitmask; 1092 }; 1093 1094 struct nfs4_fsinfo_res { 1095 struct nfs4_sequence_res seq_res; 1096 struct nfs_fsinfo *fsinfo; 1097 }; 1098 1099 struct nfs4_getattr_arg { 1100 struct nfs4_sequence_args seq_args; 1101 const struct nfs_fh * fh; 1102 const u32 * bitmask; 1103 bool get_dir_deleg; 1104 }; 1105 1106 struct nfs4_gdd_res { 1107 u32 status; 1108 nfs4_stateid deleg; 1109 }; 1110 1111 struct nfs4_getattr_res { 1112 struct nfs4_sequence_res seq_res; 1113 const struct nfs_server * server; 1114 struct nfs_fattr * fattr; 1115 struct nfs4_gdd_res * gdd_res; 1116 }; 1117 1118 struct nfs4_link_arg { 1119 struct nfs4_sequence_args seq_args; 1120 const struct nfs_fh * fh; 1121 const struct nfs_fh * dir_fh; 1122 const struct qstr * name; 1123 const u32 * bitmask; 1124 }; 1125 1126 struct nfs4_link_res { 1127 struct nfs4_sequence_res seq_res; 1128 const struct nfs_server * server; 1129 struct nfs_fattr * fattr; 1130 struct nfs4_change_info cinfo; 1131 struct nfs_fattr * dir_attr; 1132 }; 1133 1134 struct nfs4_lookup_arg { 1135 struct nfs4_sequence_args seq_args; 1136 const struct nfs_fh * dir_fh; 1137 const struct qstr * name; 1138 const u32 * bitmask; 1139 }; 1140 1141 struct nfs4_lookup_res { 1142 struct nfs4_sequence_res seq_res; 1143 const struct nfs_server * server; 1144 struct nfs_fattr * fattr; 1145 struct nfs_fh * fh; 1146 }; 1147 1148 struct nfs4_lookupp_arg { 1149 struct nfs4_sequence_args seq_args; 1150 const struct nfs_fh *fh; 1151 const u32 *bitmask; 1152 }; 1153 1154 struct nfs4_lookupp_res { 1155 struct nfs4_sequence_res seq_res; 1156 const struct nfs_server *server; 1157 struct nfs_fattr *fattr; 1158 struct nfs_fh *fh; 1159 }; 1160 1161 struct nfs4_lookup_root_arg { 1162 struct nfs4_sequence_args seq_args; 1163 const u32 * bitmask; 1164 }; 1165 1166 struct nfs4_pathconf_arg { 1167 struct nfs4_sequence_args seq_args; 1168 const struct nfs_fh * fh; 1169 const u32 * bitmask; 1170 }; 1171 1172 struct nfs4_pathconf_res { 1173 struct nfs4_sequence_res seq_res; 1174 struct nfs_pathconf *pathconf; 1175 }; 1176 1177 struct nfs4_readdir_arg { 1178 struct nfs4_sequence_args seq_args; 1179 const struct nfs_fh * fh; 1180 u64 cookie; 1181 nfs4_verifier verifier; 1182 u32 count; 1183 struct page ** pages; /* zero-copy data */ 1184 unsigned int pgbase; /* zero-copy data */ 1185 const u32 * bitmask; 1186 bool plus; 1187 }; 1188 1189 struct nfs4_readdir_res { 1190 struct nfs4_sequence_res seq_res; 1191 nfs4_verifier verifier; 1192 unsigned int pgbase; 1193 }; 1194 1195 struct nfs4_readlink { 1196 struct nfs4_sequence_args seq_args; 1197 const struct nfs_fh * fh; 1198 unsigned int pgbase; 1199 unsigned int pglen; /* zero-copy data */ 1200 struct page ** pages; /* zero-copy data */ 1201 }; 1202 1203 struct nfs4_readlink_res { 1204 struct nfs4_sequence_res seq_res; 1205 }; 1206 1207 struct nfs4_setclientid { 1208 const nfs4_verifier * sc_verifier; 1209 u32 sc_prog; 1210 unsigned int sc_netid_len; 1211 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1212 unsigned int sc_uaddr_len; 1213 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1214 struct nfs_client *sc_clnt; 1215 struct rpc_cred *sc_cred; 1216 }; 1217 1218 struct nfs4_setclientid_res { 1219 u64 clientid; 1220 nfs4_verifier confirm; 1221 }; 1222 1223 struct nfs4_statfs_arg { 1224 struct nfs4_sequence_args seq_args; 1225 const struct nfs_fh * fh; 1226 const u32 * bitmask; 1227 }; 1228 1229 struct nfs4_statfs_res { 1230 struct nfs4_sequence_res seq_res; 1231 struct nfs_fsstat *fsstat; 1232 }; 1233 1234 struct nfs4_open_caps { 1235 u32 oa_share_access[1]; 1236 u32 oa_share_deny[1]; 1237 u32 oa_share_access_want[1]; 1238 u32 oa_open_claim[1]; 1239 u32 oa_createmode[1]; 1240 }; 1241 1242 struct nfs4_server_caps_arg { 1243 struct nfs4_sequence_args seq_args; 1244 struct nfs_fh *fhandle; 1245 const u32 * bitmask; 1246 }; 1247 1248 struct nfs4_server_caps_res { 1249 struct nfs4_sequence_res seq_res; 1250 u32 attr_bitmask[3]; 1251 u32 exclcreat_bitmask[3]; 1252 u32 acl_bitmask; 1253 u32 has_links; 1254 u32 has_symlinks; 1255 u32 fh_expire_type; 1256 u32 case_insensitive; 1257 u32 case_preserving; 1258 struct nfs4_open_caps open_caps; 1259 }; 1260 1261 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1262 struct nfs4_pathname { 1263 unsigned int ncomponents; 1264 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1265 }; 1266 1267 #define NFS4_FS_LOCATION_MAXSERVERS 10 1268 struct nfs4_fs_location { 1269 unsigned int nservers; 1270 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1271 struct nfs4_pathname rootpath; 1272 }; 1273 1274 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1275 struct nfs4_fs_locations { 1276 struct nfs_fattr *fattr; 1277 const struct nfs_server *server; 1278 struct nfs4_pathname fs_path; 1279 int nlocations; 1280 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1281 }; 1282 1283 struct nfs4_fs_locations_arg { 1284 struct nfs4_sequence_args seq_args; 1285 const struct nfs_fh *dir_fh; 1286 const struct nfs_fh *fh; 1287 const struct qstr *name; 1288 struct page *page; 1289 const u32 *bitmask; 1290 clientid4 clientid; 1291 unsigned char migration:1, renew:1; 1292 }; 1293 1294 struct nfs4_fs_locations_res { 1295 struct nfs4_sequence_res seq_res; 1296 struct nfs4_fs_locations *fs_locations; 1297 unsigned char migration:1, renew:1; 1298 }; 1299 1300 struct nfs4_secinfo4 { 1301 u32 flavor; 1302 struct rpcsec_gss_info flavor_info; 1303 }; 1304 1305 struct nfs4_secinfo_flavors { 1306 unsigned int num_flavors; 1307 struct nfs4_secinfo4 flavors[]; 1308 }; 1309 1310 struct nfs4_secinfo_arg { 1311 struct nfs4_sequence_args seq_args; 1312 const struct nfs_fh *dir_fh; 1313 const struct qstr *name; 1314 }; 1315 1316 struct nfs4_secinfo_res { 1317 struct nfs4_sequence_res seq_res; 1318 struct nfs4_secinfo_flavors *flavors; 1319 }; 1320 1321 struct nfs4_fsid_present_arg { 1322 struct nfs4_sequence_args seq_args; 1323 const struct nfs_fh *fh; 1324 clientid4 clientid; 1325 unsigned char renew:1; 1326 }; 1327 1328 struct nfs4_fsid_present_res { 1329 struct nfs4_sequence_res seq_res; 1330 struct nfs_fh *fh; 1331 unsigned char renew:1; 1332 }; 1333 1334 struct pnfs_commit_bucket { 1335 struct list_head written; 1336 struct list_head committing; 1337 struct pnfs_layout_segment *lseg; 1338 struct nfs_writeverf direct_verf; 1339 }; 1340 1341 struct pnfs_commit_array { 1342 struct list_head cinfo_list; 1343 struct list_head lseg_list; 1344 struct pnfs_layout_segment *lseg; 1345 struct rcu_head rcu; 1346 refcount_t refcount; 1347 unsigned int nbuckets; 1348 struct pnfs_commit_bucket buckets[] __counted_by(nbuckets); 1349 }; 1350 1351 struct pnfs_ds_commit_info { 1352 struct list_head commits; 1353 unsigned int nwritten; 1354 unsigned int ncommitting; 1355 const struct pnfs_commit_ops *ops; 1356 }; 1357 1358 struct nfs41_state_protection { 1359 u32 how; 1360 struct nfs4_op_map enforce; 1361 struct nfs4_op_map allow; 1362 }; 1363 1364 struct nfs41_exchange_id_args { 1365 struct nfs_client *client; 1366 nfs4_verifier verifier; 1367 u32 flags; 1368 struct nfs41_state_protection state_protect; 1369 }; 1370 1371 struct nfs41_server_owner { 1372 uint64_t minor_id; 1373 uint32_t major_id_sz; 1374 char major_id[NFS4_OPAQUE_LIMIT]; 1375 }; 1376 1377 struct nfs41_server_scope { 1378 uint32_t server_scope_sz; 1379 char server_scope[NFS4_OPAQUE_LIMIT]; 1380 }; 1381 1382 struct nfs41_impl_id { 1383 char domain[NFS4_OPAQUE_LIMIT + 1]; 1384 char name[NFS4_OPAQUE_LIMIT + 1]; 1385 struct nfstime4 date; 1386 }; 1387 1388 #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 1389 struct nfs41_bind_conn_to_session_args { 1390 struct nfs_client *client; 1391 struct nfs4_sessionid sessionid; 1392 u32 dir; 1393 bool use_conn_in_rdma_mode; 1394 int retries; 1395 }; 1396 1397 struct nfs41_bind_conn_to_session_res { 1398 struct nfs4_sessionid sessionid; 1399 u32 dir; 1400 bool use_conn_in_rdma_mode; 1401 }; 1402 1403 struct nfs41_exchange_id_res { 1404 u64 clientid; 1405 u32 seqid; 1406 u32 flags; 1407 struct nfs41_server_owner *server_owner; 1408 struct nfs41_server_scope *server_scope; 1409 struct nfs41_impl_id *impl_id; 1410 struct nfs41_state_protection state_protect; 1411 }; 1412 1413 struct nfs41_create_session_args { 1414 struct nfs_client *client; 1415 u64 clientid; 1416 uint32_t seqid; 1417 uint32_t flags; 1418 uint32_t cb_program; 1419 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1420 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1421 }; 1422 1423 struct nfs41_create_session_res { 1424 struct nfs4_sessionid sessionid; 1425 uint32_t seqid; 1426 uint32_t flags; 1427 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1428 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1429 }; 1430 1431 struct nfs41_reclaim_complete_args { 1432 struct nfs4_sequence_args seq_args; 1433 /* In the future extend to include curr_fh for use with migration */ 1434 unsigned char one_fs:1; 1435 }; 1436 1437 struct nfs41_reclaim_complete_res { 1438 struct nfs4_sequence_res seq_res; 1439 }; 1440 1441 #define SECINFO_STYLE_CURRENT_FH 0 1442 #define SECINFO_STYLE_PARENT 1 1443 struct nfs41_secinfo_no_name_args { 1444 struct nfs4_sequence_args seq_args; 1445 int style; 1446 }; 1447 1448 struct nfs41_test_stateid_args { 1449 struct nfs4_sequence_args seq_args; 1450 nfs4_stateid stateid; 1451 }; 1452 1453 struct nfs41_test_stateid_res { 1454 struct nfs4_sequence_res seq_res; 1455 unsigned int status; 1456 }; 1457 1458 struct nfs41_free_stateid_args { 1459 struct nfs4_sequence_args seq_args; 1460 nfs4_stateid stateid; 1461 }; 1462 1463 struct nfs41_free_stateid_res { 1464 struct nfs4_sequence_res seq_res; 1465 unsigned int status; 1466 }; 1467 1468 #else 1469 1470 struct pnfs_ds_commit_info { 1471 }; 1472 1473 #endif /* CONFIG_NFS_V4 */ 1474 1475 #ifdef CONFIG_NFS_V4_2 1476 struct nfs42_falloc_args { 1477 struct nfs4_sequence_args seq_args; 1478 1479 struct nfs_fh *falloc_fh; 1480 nfs4_stateid falloc_stateid; 1481 u64 falloc_offset; 1482 u64 falloc_length; 1483 const u32 *falloc_bitmask; 1484 }; 1485 1486 struct nfs42_falloc_res { 1487 struct nfs4_sequence_res seq_res; 1488 unsigned int status; 1489 1490 struct nfs_fattr *falloc_fattr; 1491 const struct nfs_server *falloc_server; 1492 }; 1493 1494 struct nfs42_copy_args { 1495 struct nfs4_sequence_args seq_args; 1496 1497 struct nfs_fh *src_fh; 1498 nfs4_stateid src_stateid; 1499 u64 src_pos; 1500 1501 struct nfs_fh *dst_fh; 1502 nfs4_stateid dst_stateid; 1503 u64 dst_pos; 1504 1505 u64 count; 1506 bool sync; 1507 struct nl4_server *cp_src; 1508 }; 1509 1510 struct nfs42_write_res { 1511 nfs4_stateid stateid; 1512 u64 count; 1513 struct nfs_writeverf verifier; 1514 }; 1515 1516 struct nfs42_copy_res { 1517 struct nfs4_sequence_res seq_res; 1518 struct nfs42_write_res write_res; 1519 bool consecutive; 1520 bool synchronous; 1521 struct nfs_commitres commit_res; 1522 }; 1523 1524 struct nfs42_offload_status_args { 1525 struct nfs4_sequence_args osa_seq_args; 1526 struct nfs_fh *osa_src_fh; 1527 nfs4_stateid osa_stateid; 1528 }; 1529 1530 struct nfs42_offload_status_res { 1531 struct nfs4_sequence_res osr_seq_res; 1532 u64 osr_count; 1533 int complete_count; 1534 u32 osr_complete; 1535 }; 1536 1537 struct nfs42_copy_notify_args { 1538 struct nfs4_sequence_args cna_seq_args; 1539 1540 struct nfs_fh *cna_src_fh; 1541 nfs4_stateid cna_src_stateid; 1542 struct nl4_server cna_dst; 1543 }; 1544 1545 struct nfs42_copy_notify_res { 1546 struct nfs4_sequence_res cnr_seq_res; 1547 1548 struct nfstime4 cnr_lease_time; 1549 nfs4_stateid cnr_stateid; 1550 struct nl4_server cnr_src; 1551 }; 1552 1553 struct nfs42_seek_args { 1554 struct nfs4_sequence_args seq_args; 1555 1556 struct nfs_fh *sa_fh; 1557 nfs4_stateid sa_stateid; 1558 u64 sa_offset; 1559 u32 sa_what; 1560 }; 1561 1562 struct nfs42_seek_res { 1563 struct nfs4_sequence_res seq_res; 1564 unsigned int status; 1565 1566 u32 sr_eof; 1567 u64 sr_offset; 1568 }; 1569 1570 struct nfs42_setxattrargs { 1571 struct nfs4_sequence_args seq_args; 1572 struct nfs_fh *fh; 1573 const u32 *bitmask; 1574 const char *xattr_name; 1575 u32 xattr_flags; 1576 size_t xattr_len; 1577 struct page **xattr_pages; 1578 }; 1579 1580 struct nfs42_setxattrres { 1581 struct nfs4_sequence_res seq_res; 1582 struct nfs4_change_info cinfo; 1583 struct nfs_fattr *fattr; 1584 const struct nfs_server *server; 1585 }; 1586 1587 struct nfs42_getxattrargs { 1588 struct nfs4_sequence_args seq_args; 1589 struct nfs_fh *fh; 1590 const char *xattr_name; 1591 size_t xattr_len; 1592 struct page **xattr_pages; 1593 }; 1594 1595 struct nfs42_getxattrres { 1596 struct nfs4_sequence_res seq_res; 1597 size_t xattr_len; 1598 }; 1599 1600 struct nfs42_listxattrsargs { 1601 struct nfs4_sequence_args seq_args; 1602 struct nfs_fh *fh; 1603 u32 count; 1604 u64 cookie; 1605 struct page **xattr_pages; 1606 }; 1607 1608 struct nfs42_listxattrsres { 1609 struct nfs4_sequence_res seq_res; 1610 struct folio *scratch; 1611 void *xattr_buf; 1612 size_t xattr_len; 1613 u64 cookie; 1614 bool eof; 1615 size_t copied; 1616 }; 1617 1618 struct nfs42_removexattrargs { 1619 struct nfs4_sequence_args seq_args; 1620 struct nfs_fh *fh; 1621 const u32 *bitmask; 1622 const char *xattr_name; 1623 }; 1624 1625 struct nfs42_removexattrres { 1626 struct nfs4_sequence_res seq_res; 1627 struct nfs4_change_info cinfo; 1628 struct nfs_fattr *fattr; 1629 const struct nfs_server *server; 1630 }; 1631 1632 #endif /* CONFIG_NFS_V4_2 */ 1633 1634 struct nfs_page; 1635 1636 #define NFS_PAGEVEC_SIZE (8U) 1637 1638 struct nfs_page_array { 1639 struct page **pagevec; 1640 unsigned int npages; /* Max length of pagevec */ 1641 struct page *page_array[NFS_PAGEVEC_SIZE]; 1642 }; 1643 1644 /* used as flag bits in nfs_pgio_header */ 1645 enum { 1646 NFS_IOHDR_ERROR = 0, 1647 NFS_IOHDR_EOF, 1648 NFS_IOHDR_REDO, 1649 NFS_IOHDR_STAT, 1650 NFS_IOHDR_RESEND_PNFS, 1651 NFS_IOHDR_RESEND_MDS, 1652 NFS_IOHDR_UNSTABLE_WRITES, 1653 NFS_IOHDR_ODIRECT, 1654 }; 1655 1656 struct nfs_io_completion; 1657 struct nfs_pgio_header { 1658 struct inode *inode; 1659 const struct cred *cred; 1660 struct list_head pages; 1661 struct nfs_page *req; 1662 struct nfs_writeverf verf; /* Used for writes */ 1663 fmode_t rw_mode; 1664 struct pnfs_layout_segment *lseg; 1665 loff_t io_start; 1666 const struct rpc_call_ops *mds_ops; 1667 void (*release) (struct nfs_pgio_header *hdr); 1668 const struct nfs_pgio_completion_ops *completion_ops; 1669 const struct nfs_rw_ops *rw_ops; 1670 struct nfs_io_completion *io_completion; 1671 struct nfs_direct_req *dreq; 1672 #ifdef CONFIG_NFS_FSCACHE 1673 void *netfs; 1674 #endif 1675 1676 unsigned short retrans; 1677 int pnfs_error; 1678 int error; /* merge with pnfs_error */ 1679 unsigned int good_bytes; /* boundary of good data */ 1680 unsigned long flags; 1681 1682 /* 1683 * rpc data 1684 */ 1685 struct rpc_task task; 1686 struct nfs_fattr fattr; 1687 struct nfs_pgio_args args; /* argument struct */ 1688 struct nfs_pgio_res res; /* result struct */ 1689 unsigned long timestamp; /* For lease renewal */ 1690 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1691 __u64 mds_offset; /* Filelayout dense stripe */ 1692 struct nfs_page_array page_array; 1693 struct nfs_client *ds_clp; /* pNFS data server */ 1694 u32 ds_commit_idx; /* ds index if ds_clp is set */ 1695 u32 pgio_mirror_idx;/* mirror index in pgio layer */ 1696 struct nfs4_deviceid_node *ds_dev; /* device node ref held across the I/O */ 1697 }; 1698 1699 struct nfs_mds_commit_info { 1700 atomic_t rpcs_out; 1701 atomic_long_t ncommit; 1702 struct list_head list; 1703 }; 1704 1705 struct nfs_commit_info; 1706 struct nfs_commit_data; 1707 struct nfs_inode; 1708 struct nfs_commit_completion_ops { 1709 void (*completion) (struct nfs_commit_data *data); 1710 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1711 }; 1712 1713 struct nfs_commit_info { 1714 struct inode *inode; /* Needed for inode->i_lock */ 1715 struct nfs_mds_commit_info *mds; 1716 struct pnfs_ds_commit_info *ds; 1717 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1718 const struct nfs_commit_completion_ops *completion_ops; 1719 }; 1720 1721 struct nfs_commit_data { 1722 struct rpc_task task; 1723 struct inode *inode; 1724 const struct cred *cred; 1725 struct nfs_fattr fattr; 1726 struct nfs_writeverf verf; 1727 struct list_head pages; /* Coalesced requests we wish to flush */ 1728 struct list_head list; /* lists of struct nfs_write_data */ 1729 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1730 struct nfs_commitargs args; /* argument struct */ 1731 struct nfs_commitres res; /* result struct */ 1732 struct nfs_open_context *context; 1733 struct pnfs_layout_segment *lseg; 1734 struct nfs_client *ds_clp; /* pNFS data server */ 1735 struct nfs4_deviceid_node *ds_dev; /* device node ref held across the commit */ 1736 int ds_commit_index; 1737 loff_t lwb; 1738 const struct rpc_call_ops *mds_ops; 1739 const struct nfs_commit_completion_ops *completion_ops; 1740 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1741 unsigned long flags; 1742 }; 1743 1744 struct nfs_pgio_completion_ops { 1745 void (*error_cleanup)(struct list_head *head, int); 1746 void (*init_hdr)(struct nfs_pgio_header *hdr); 1747 void (*completion)(struct nfs_pgio_header *hdr); 1748 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1749 }; 1750 1751 struct nfs_unlinkdata { 1752 struct nfs_removeargs args; 1753 struct nfs_removeres res; 1754 struct dentry *dentry; 1755 const struct cred *cred; 1756 struct nfs_fattr dir_attr; 1757 long timeout; 1758 }; 1759 1760 struct nfs_renamedata { 1761 struct nfs_renameargs args; 1762 struct nfs_renameres res; 1763 struct rpc_task task; 1764 const struct cred *cred; 1765 struct inode *old_dir; 1766 struct dentry *old_dentry; 1767 struct nfs_fattr old_fattr; 1768 struct inode *new_dir; 1769 struct dentry *new_dentry; 1770 struct nfs_fattr new_fattr; 1771 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1772 long timeout; 1773 bool cancelled; 1774 }; 1775 1776 struct nfs_access_entry; 1777 struct nfs_client; 1778 struct rpc_timeout; 1779 struct nfs_subversion; 1780 struct nfs_mount_info; 1781 struct nfs_client_initdata; 1782 struct nfs_pageio_descriptor; 1783 struct fs_context; 1784 1785 /* 1786 * RPC procedure vector for NFSv2/NFSv3 demuxing 1787 */ 1788 struct nfs_rpc_ops { 1789 u32 version; /* Protocol version */ 1790 const struct dentry_operations *dentry_ops; 1791 const struct inode_operations *dir_inode_ops; 1792 const struct inode_operations *file_inode_ops; 1793 const struct file_operations *file_ops; 1794 const struct nlmclnt_operations *nlmclnt_ops; 1795 1796 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1797 struct nfs_fsinfo *); 1798 int (*submount) (struct fs_context *, struct nfs_server *); 1799 int (*try_get_tree) (struct fs_context *); 1800 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1801 struct nfs_fattr *, struct inode *); 1802 int (*setattr) (struct dentry *, struct nfs_fattr *, 1803 struct iattr *); 1804 int (*lookup) (struct inode *, struct dentry *, const struct qstr *, 1805 struct nfs_fh *, struct nfs_fattr *); 1806 int (*lookupp) (struct inode *, struct nfs_fh *, 1807 struct nfs_fattr *); 1808 int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *); 1809 int (*readlink)(struct inode *, struct page *, unsigned int, 1810 unsigned int); 1811 int (*create) (struct inode *, struct dentry *, 1812 struct iattr *, int); 1813 int (*remove) (struct inode *, struct dentry *); 1814 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1815 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1816 int (*unlink_done) (struct rpc_task *, struct inode *); 1817 void (*rename_setup) (struct rpc_message *msg, 1818 struct dentry *old_dentry, 1819 struct dentry *new_dentry, 1820 struct inode *same_parent); 1821 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1822 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1823 int (*link) (struct inode *, struct inode *, const struct qstr *); 1824 int (*symlink) (struct inode *, struct dentry *, struct folio *, 1825 unsigned int, struct iattr *); 1826 struct dentry *(*mkdir) (struct inode *, struct dentry *, struct iattr *); 1827 int (*rmdir) (struct inode *, const struct qstr *); 1828 int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); 1829 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1830 dev_t); 1831 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1832 struct nfs_fsstat *); 1833 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1834 struct nfs_fsinfo *); 1835 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1836 struct nfs_pathconf *); 1837 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1838 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1839 int (*pgio_rpc_prepare)(struct rpc_task *, 1840 struct nfs_pgio_header *); 1841 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1842 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1843 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1844 struct rpc_clnt **); 1845 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1846 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1847 struct rpc_clnt **); 1848 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1849 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1850 int (*lock)(struct file *, int, struct file_lock *); 1851 int (*lock_check_bounds)(const struct file_lock *); 1852 void (*clear_acl_cache)(struct inode *); 1853 void (*close_context)(struct nfs_open_context *ctx, int); 1854 struct inode * (*open_context) (struct inode *dir, 1855 struct nfs_open_context *ctx, 1856 int open_flags, 1857 struct iattr *iattr, 1858 int *); 1859 int (*have_delegation)(struct inode *, fmode_t, int); 1860 void (*return_delegation)(struct inode *); 1861 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1862 struct nfs_client *(*init_client) (struct nfs_client *, 1863 const struct nfs_client_initdata *); 1864 void (*free_client) (struct nfs_client *); 1865 struct nfs_server *(*create_server)(struct fs_context *); 1866 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1867 struct nfs_fattr *, rpc_authflavor_t); 1868 int (*discover_trunking)(struct nfs_server *, struct nfs_fh *); 1869 void (*enable_swap)(struct inode *inode); 1870 void (*disable_swap)(struct inode *inode); 1871 }; 1872 1873 /* 1874 * Helper functions used by NFS client and/or server 1875 */ 1876 static inline void encode_opaque_fixed(struct xdr_stream *xdr, 1877 const void *buf, size_t len) 1878 { 1879 WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); 1880 } 1881 1882 static inline int decode_opaque_fixed(struct xdr_stream *xdr, 1883 void *buf, size_t len) 1884 { 1885 ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); 1886 if (unlikely(ret < 0)) 1887 return -EIO; 1888 return 0; 1889 } 1890 1891 /* 1892 * Function vectors etc. for the NFS client 1893 */ 1894 extern const struct nfs_rpc_ops nfs_v2_clientops; 1895 extern const struct nfs_rpc_ops nfs_v3_clientops; 1896 extern const struct nfs_rpc_ops nfs_v4_clientops; 1897 extern const struct rpc_version nfs_version2; 1898 extern const struct rpc_version nfs_version3; 1899 extern const struct rpc_version nfs_version4; 1900 1901 extern const struct rpc_version nfsacl_version3; 1902 extern const struct rpc_program nfsacl_program; 1903 1904 #endif /* _LINUX_NFS_XDR_H */ 1905