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 struct nfs4_string { 19 unsigned int len; 20 char *data; 21 }; 22 23 struct nfs_fsid { 24 uint64_t major; 25 uint64_t minor; 26 }; 27 28 /* 29 * Helper for checking equality between 2 fsids. 30 */ 31 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 32 { 33 return a->major == b->major && a->minor == b->minor; 34 } 35 36 struct nfs4_threshold { 37 __u32 bm; 38 __u32 l_type; 39 __u64 rd_sz; 40 __u64 wr_sz; 41 __u64 rd_io_sz; 42 __u64 wr_io_sz; 43 }; 44 45 struct nfs_fattr { 46 unsigned int valid; /* which fields are valid */ 47 umode_t mode; 48 __u32 nlink; 49 kuid_t uid; 50 kgid_t gid; 51 dev_t rdev; 52 __u64 size; 53 union { 54 struct { 55 __u32 blocksize; 56 __u32 blocks; 57 } nfs2; 58 struct { 59 __u64 used; 60 } nfs3; 61 } du; 62 struct nfs_fsid fsid; 63 __u64 fileid; 64 __u64 mounted_on_fileid; 65 struct timespec atime; 66 struct timespec mtime; 67 struct timespec ctime; 68 __u64 change_attr; /* NFSv4 change attribute */ 69 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 70 __u64 pre_size; /* pre_op_attr.size */ 71 struct timespec pre_mtime; /* pre_op_attr.mtime */ 72 struct timespec pre_ctime; /* pre_op_attr.ctime */ 73 unsigned long time_start; 74 unsigned long gencount; 75 struct nfs4_string *owner_name; 76 struct nfs4_string *group_name; 77 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */ 78 }; 79 80 #define NFS_ATTR_FATTR_TYPE (1U << 0) 81 #define NFS_ATTR_FATTR_MODE (1U << 1) 82 #define NFS_ATTR_FATTR_NLINK (1U << 2) 83 #define NFS_ATTR_FATTR_OWNER (1U << 3) 84 #define NFS_ATTR_FATTR_GROUP (1U << 4) 85 #define NFS_ATTR_FATTR_RDEV (1U << 5) 86 #define NFS_ATTR_FATTR_SIZE (1U << 6) 87 #define NFS_ATTR_FATTR_PRESIZE (1U << 7) 88 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 89 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 90 #define NFS_ATTR_FATTR_FSID (1U << 10) 91 #define NFS_ATTR_FATTR_FILEID (1U << 11) 92 #define NFS_ATTR_FATTR_ATIME (1U << 12) 93 #define NFS_ATTR_FATTR_MTIME (1U << 13) 94 #define NFS_ATTR_FATTR_CTIME (1U << 14) 95 #define NFS_ATTR_FATTR_PREMTIME (1U << 15) 96 #define NFS_ATTR_FATTR_PRECTIME (1U << 16) 97 #define NFS_ATTR_FATTR_CHANGE (1U << 17) 98 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 99 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) 100 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) 101 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) 102 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) 103 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) 104 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) 105 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) 106 107 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 108 | NFS_ATTR_FATTR_MODE \ 109 | NFS_ATTR_FATTR_NLINK \ 110 | NFS_ATTR_FATTR_OWNER \ 111 | NFS_ATTR_FATTR_GROUP \ 112 | NFS_ATTR_FATTR_RDEV \ 113 | NFS_ATTR_FATTR_SIZE \ 114 | NFS_ATTR_FATTR_FSID \ 115 | NFS_ATTR_FATTR_FILEID \ 116 | NFS_ATTR_FATTR_ATIME \ 117 | NFS_ATTR_FATTR_MTIME \ 118 | NFS_ATTR_FATTR_CTIME \ 119 | NFS_ATTR_FATTR_CHANGE) 120 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 121 | NFS_ATTR_FATTR_BLOCKS_USED) 122 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 123 | NFS_ATTR_FATTR_SPACE_USED) 124 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 125 | NFS_ATTR_FATTR_SPACE_USED \ 126 | NFS_ATTR_FATTR_V4_SECURITY_LABEL) 127 128 /* 129 * Maximal number of supported layout drivers. 130 */ 131 #define NFS_MAX_LAYOUT_TYPES 8 132 133 /* 134 * Info on the file system 135 */ 136 struct nfs_fsinfo { 137 struct nfs_fattr *fattr; /* Post-op attributes */ 138 __u32 rtmax; /* max. read transfer size */ 139 __u32 rtpref; /* pref. read transfer size */ 140 __u32 rtmult; /* reads should be multiple of this */ 141 __u32 wtmax; /* max. write transfer size */ 142 __u32 wtpref; /* pref. write transfer size */ 143 __u32 wtmult; /* writes should be multiple of this */ 144 __u32 dtpref; /* pref. readdir transfer size */ 145 __u64 maxfilesize; 146 struct timespec time_delta; /* server time granularity */ 147 __u32 lease_time; /* in seconds */ 148 __u32 nlayouttypes; /* number of layouttypes */ 149 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 150 __u32 blksize; /* preferred pnfs io block size */ 151 __u32 clone_blksize; /* granularity of a CLONE operation */ 152 }; 153 154 struct nfs_fsstat { 155 struct nfs_fattr *fattr; /* Post-op attributes */ 156 __u64 tbytes; /* total size in bytes */ 157 __u64 fbytes; /* # of free bytes */ 158 __u64 abytes; /* # of bytes available to user */ 159 __u64 tfiles; /* # of files */ 160 __u64 ffiles; /* # of free files */ 161 __u64 afiles; /* # of files available to user */ 162 }; 163 164 struct nfs2_fsstat { 165 __u32 tsize; /* Server transfer size */ 166 __u32 bsize; /* Filesystem block size */ 167 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 168 __u32 bfree; /* No. of free "bsize" blocks */ 169 __u32 bavail; /* No. of available "bsize" blocks */ 170 }; 171 172 struct nfs_pathconf { 173 struct nfs_fattr *fattr; /* Post-op attributes */ 174 __u32 max_link; /* max # of hard links */ 175 __u32 max_namelen; /* max name length */ 176 }; 177 178 struct nfs4_change_info { 179 u32 atomic; 180 u64 before; 181 u64 after; 182 }; 183 184 struct nfs_seqid; 185 186 /* nfs41 sessions channel attributes */ 187 struct nfs4_channel_attrs { 188 u32 max_rqst_sz; 189 u32 max_resp_sz; 190 u32 max_resp_sz_cached; 191 u32 max_ops; 192 u32 max_reqs; 193 }; 194 195 struct nfs4_slot; 196 struct nfs4_sequence_args { 197 struct nfs4_slot *sa_slot; 198 u8 sa_cache_this : 1, 199 sa_privileged : 1; 200 }; 201 202 struct nfs4_sequence_res { 203 struct nfs4_slot *sr_slot; /* slot used to send request */ 204 unsigned long sr_timestamp; 205 int sr_status; /* sequence operation status */ 206 u32 sr_status_flags; 207 u32 sr_highest_slotid; 208 u32 sr_target_highest_slotid; 209 }; 210 211 struct nfs4_get_lease_time_args { 212 struct nfs4_sequence_args la_seq_args; 213 }; 214 215 struct nfs4_get_lease_time_res { 216 struct nfs4_sequence_res lr_seq_res; 217 struct nfs_fsinfo *lr_fsinfo; 218 }; 219 220 struct xdr_stream; 221 struct nfs4_xdr_opaque_data; 222 223 struct nfs4_xdr_opaque_ops { 224 void (*encode)(struct xdr_stream *, const void *args, 225 const struct nfs4_xdr_opaque_data *); 226 void (*free)(struct nfs4_xdr_opaque_data *); 227 }; 228 229 struct nfs4_xdr_opaque_data { 230 const struct nfs4_xdr_opaque_ops *ops; 231 void *data; 232 }; 233 234 #define PNFS_LAYOUT_MAXSIZE 4096 235 236 struct nfs4_layoutdriver_data { 237 struct page **pages; 238 __u32 pglen; 239 __u32 len; 240 }; 241 242 struct pnfs_layout_range { 243 u32 iomode; 244 u64 offset; 245 u64 length; 246 }; 247 248 struct nfs4_layoutget_args { 249 struct nfs4_sequence_args seq_args; 250 __u32 type; 251 struct pnfs_layout_range range; 252 __u64 minlength; 253 __u32 maxcount; 254 struct inode *inode; 255 struct nfs_open_context *ctx; 256 nfs4_stateid stateid; 257 struct nfs4_layoutdriver_data layout; 258 }; 259 260 struct nfs4_layoutget_res { 261 struct nfs4_sequence_res seq_res; 262 __u32 return_on_close; 263 struct pnfs_layout_range range; 264 __u32 type; 265 nfs4_stateid stateid; 266 struct nfs4_layoutdriver_data *layoutp; 267 }; 268 269 struct nfs4_layoutget { 270 struct nfs4_layoutget_args args; 271 struct nfs4_layoutget_res res; 272 struct rpc_cred *cred; 273 gfp_t gfp_flags; 274 }; 275 276 struct nfs4_getdeviceinfo_args { 277 struct nfs4_sequence_args seq_args; 278 struct pnfs_device *pdev; 279 __u32 notify_types; 280 }; 281 282 struct nfs4_getdeviceinfo_res { 283 struct nfs4_sequence_res seq_res; 284 struct pnfs_device *pdev; 285 __u32 notification; 286 }; 287 288 struct nfs4_layoutcommit_args { 289 struct nfs4_sequence_args seq_args; 290 nfs4_stateid stateid; 291 __u64 lastbytewritten; 292 struct inode *inode; 293 const u32 *bitmask; 294 size_t layoutupdate_len; 295 struct page *layoutupdate_page; 296 struct page **layoutupdate_pages; 297 __be32 *start_p; 298 }; 299 300 struct nfs4_layoutcommit_res { 301 struct nfs4_sequence_res seq_res; 302 struct nfs_fattr *fattr; 303 const struct nfs_server *server; 304 int status; 305 }; 306 307 struct nfs4_layoutcommit_data { 308 struct rpc_task task; 309 struct nfs_fattr fattr; 310 struct list_head lseg_list; 311 struct rpc_cred *cred; 312 struct inode *inode; 313 struct nfs4_layoutcommit_args args; 314 struct nfs4_layoutcommit_res res; 315 }; 316 317 struct nfs4_layoutreturn_args { 318 struct nfs4_sequence_args seq_args; 319 struct pnfs_layout_hdr *layout; 320 struct inode *inode; 321 struct pnfs_layout_range range; 322 nfs4_stateid stateid; 323 __u32 layout_type; 324 struct nfs4_xdr_opaque_data *ld_private; 325 }; 326 327 struct nfs4_layoutreturn_res { 328 struct nfs4_sequence_res seq_res; 329 u32 lrs_present; 330 nfs4_stateid stateid; 331 }; 332 333 struct nfs4_layoutreturn { 334 struct nfs4_layoutreturn_args args; 335 struct nfs4_layoutreturn_res res; 336 struct rpc_cred *cred; 337 struct nfs_client *clp; 338 struct inode *inode; 339 int rpc_status; 340 struct nfs4_xdr_opaque_data ld_private; 341 }; 342 343 #define PNFS_LAYOUTSTATS_MAXSIZE 256 344 345 struct nfs42_layoutstat_args; 346 struct nfs42_layoutstat_devinfo; 347 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 348 struct nfs42_layoutstat_args *, 349 struct nfs42_layoutstat_devinfo *); 350 351 /* Per file per deviceid layoutstats */ 352 struct nfs42_layoutstat_devinfo { 353 struct nfs4_deviceid dev_id; 354 __u64 offset; 355 __u64 length; 356 __u64 read_count; 357 __u64 read_bytes; 358 __u64 write_count; 359 __u64 write_bytes; 360 __u32 layout_type; 361 struct nfs4_xdr_opaque_data ld_private; 362 }; 363 364 struct nfs42_layoutstat_args { 365 struct nfs4_sequence_args seq_args; 366 struct nfs_fh *fh; 367 struct inode *inode; 368 nfs4_stateid stateid; 369 int num_dev; 370 struct nfs42_layoutstat_devinfo *devinfo; 371 }; 372 373 struct nfs42_layoutstat_res { 374 struct nfs4_sequence_res seq_res; 375 int num_dev; 376 int rpc_status; 377 }; 378 379 struct nfs42_layoutstat_data { 380 struct inode *inode; 381 struct nfs42_layoutstat_args args; 382 struct nfs42_layoutstat_res res; 383 }; 384 385 struct nfs42_clone_args { 386 struct nfs4_sequence_args seq_args; 387 struct nfs_fh *src_fh; 388 struct nfs_fh *dst_fh; 389 nfs4_stateid src_stateid; 390 nfs4_stateid dst_stateid; 391 __u64 src_offset; 392 __u64 dst_offset; 393 __u64 count; 394 const u32 *dst_bitmask; 395 }; 396 397 struct nfs42_clone_res { 398 struct nfs4_sequence_res seq_res; 399 unsigned int rpc_status; 400 struct nfs_fattr *dst_fattr; 401 const struct nfs_server *server; 402 }; 403 404 struct stateowner_id { 405 __u64 create_time; 406 __u32 uniquifier; 407 }; 408 409 /* 410 * Arguments to the open call. 411 */ 412 struct nfs_openargs { 413 struct nfs4_sequence_args seq_args; 414 const struct nfs_fh * fh; 415 struct nfs_seqid * seqid; 416 int open_flags; 417 fmode_t fmode; 418 u32 share_access; 419 u32 access; 420 __u64 clientid; 421 struct stateowner_id id; 422 union { 423 struct { 424 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 425 nfs4_verifier verifier; /* EXCLUSIVE */ 426 }; 427 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 428 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 429 } u; 430 const struct qstr * name; 431 const struct nfs_server *server; /* Needed for ID mapping */ 432 const u32 * bitmask; 433 const u32 * open_bitmap; 434 enum open_claim_type4 claim; 435 enum createmode4 createmode; 436 const struct nfs4_label *label; 437 umode_t umask; 438 }; 439 440 struct nfs_openres { 441 struct nfs4_sequence_res seq_res; 442 nfs4_stateid stateid; 443 struct nfs_fh fh; 444 struct nfs4_change_info cinfo; 445 __u32 rflags; 446 struct nfs_fattr * f_attr; 447 struct nfs4_label *f_label; 448 struct nfs_seqid * seqid; 449 const struct nfs_server *server; 450 fmode_t delegation_type; 451 nfs4_stateid delegation; 452 unsigned long pagemod_limit; 453 __u32 do_recall; 454 __u32 attrset[NFS4_BITMAP_SIZE]; 455 struct nfs4_string *owner; 456 struct nfs4_string *group_owner; 457 __u32 access_request; 458 __u32 access_supported; 459 __u32 access_result; 460 }; 461 462 /* 463 * Arguments to the open_confirm call. 464 */ 465 struct nfs_open_confirmargs { 466 struct nfs4_sequence_args seq_args; 467 const struct nfs_fh * fh; 468 nfs4_stateid * stateid; 469 struct nfs_seqid * seqid; 470 }; 471 472 struct nfs_open_confirmres { 473 struct nfs4_sequence_res seq_res; 474 nfs4_stateid stateid; 475 struct nfs_seqid * seqid; 476 }; 477 478 /* 479 * Arguments to the close call. 480 */ 481 struct nfs_closeargs { 482 struct nfs4_sequence_args seq_args; 483 struct nfs_fh * fh; 484 nfs4_stateid stateid; 485 struct nfs_seqid * seqid; 486 fmode_t fmode; 487 u32 share_access; 488 const u32 * bitmask; 489 struct nfs4_layoutreturn_args *lr_args; 490 }; 491 492 struct nfs_closeres { 493 struct nfs4_sequence_res seq_res; 494 nfs4_stateid stateid; 495 struct nfs_fattr * fattr; 496 struct nfs_seqid * seqid; 497 const struct nfs_server *server; 498 struct nfs4_layoutreturn_res *lr_res; 499 int lr_ret; 500 }; 501 /* 502 * * Arguments to the lock,lockt, and locku call. 503 * */ 504 struct nfs_lowner { 505 __u64 clientid; 506 __u64 id; 507 dev_t s_dev; 508 }; 509 510 struct nfs_lock_args { 511 struct nfs4_sequence_args seq_args; 512 struct nfs_fh * fh; 513 struct file_lock * fl; 514 struct nfs_seqid * lock_seqid; 515 nfs4_stateid lock_stateid; 516 struct nfs_seqid * open_seqid; 517 nfs4_stateid open_stateid; 518 struct nfs_lowner lock_owner; 519 unsigned char block : 1; 520 unsigned char reclaim : 1; 521 unsigned char new_lock : 1; 522 unsigned char new_lock_owner : 1; 523 }; 524 525 struct nfs_lock_res { 526 struct nfs4_sequence_res seq_res; 527 nfs4_stateid stateid; 528 struct nfs_seqid * lock_seqid; 529 struct nfs_seqid * open_seqid; 530 }; 531 532 struct nfs_locku_args { 533 struct nfs4_sequence_args seq_args; 534 struct nfs_fh * fh; 535 struct file_lock * fl; 536 struct nfs_seqid * seqid; 537 nfs4_stateid stateid; 538 }; 539 540 struct nfs_locku_res { 541 struct nfs4_sequence_res seq_res; 542 nfs4_stateid stateid; 543 struct nfs_seqid * seqid; 544 }; 545 546 struct nfs_lockt_args { 547 struct nfs4_sequence_args seq_args; 548 struct nfs_fh * fh; 549 struct file_lock * fl; 550 struct nfs_lowner lock_owner; 551 }; 552 553 struct nfs_lockt_res { 554 struct nfs4_sequence_res seq_res; 555 struct file_lock * denied; /* LOCK, LOCKT failed */ 556 }; 557 558 struct nfs_release_lockowner_args { 559 struct nfs4_sequence_args seq_args; 560 struct nfs_lowner lock_owner; 561 }; 562 563 struct nfs_release_lockowner_res { 564 struct nfs4_sequence_res seq_res; 565 }; 566 567 struct nfs4_delegreturnargs { 568 struct nfs4_sequence_args seq_args; 569 const struct nfs_fh *fhandle; 570 const nfs4_stateid *stateid; 571 const u32 * bitmask; 572 struct nfs4_layoutreturn_args *lr_args; 573 }; 574 575 struct nfs4_delegreturnres { 576 struct nfs4_sequence_res seq_res; 577 struct nfs_fattr * fattr; 578 struct nfs_server *server; 579 struct nfs4_layoutreturn_res *lr_res; 580 int lr_ret; 581 }; 582 583 /* 584 * Arguments to the write call. 585 */ 586 struct nfs_write_verifier { 587 char data[8]; 588 }; 589 590 struct nfs_writeverf { 591 struct nfs_write_verifier verifier; 592 enum nfs3_stable_how committed; 593 }; 594 595 /* 596 * Arguments shared by the read and write call. 597 */ 598 struct nfs_pgio_args { 599 struct nfs4_sequence_args seq_args; 600 struct nfs_fh * fh; 601 struct nfs_open_context *context; 602 struct nfs_lock_context *lock_context; 603 nfs4_stateid stateid; 604 __u64 offset; 605 __u32 count; 606 unsigned int pgbase; 607 struct page ** pages; 608 const u32 * bitmask; /* used by write */ 609 enum nfs3_stable_how stable; /* used by write */ 610 }; 611 612 struct nfs_pgio_res { 613 struct nfs4_sequence_res seq_res; 614 struct nfs_fattr * fattr; 615 __u32 count; 616 __u32 op_status; 617 int eof; /* used by read */ 618 struct nfs_writeverf * verf; /* used by write */ 619 const struct nfs_server *server; /* used by write */ 620 621 }; 622 623 /* 624 * Arguments to the commit call. 625 */ 626 struct nfs_commitargs { 627 struct nfs4_sequence_args seq_args; 628 struct nfs_fh *fh; 629 __u64 offset; 630 __u32 count; 631 const u32 *bitmask; 632 }; 633 634 struct nfs_commitres { 635 struct nfs4_sequence_res seq_res; 636 __u32 op_status; 637 struct nfs_fattr *fattr; 638 struct nfs_writeverf *verf; 639 const struct nfs_server *server; 640 }; 641 642 /* 643 * Common arguments to the unlink call 644 */ 645 struct nfs_removeargs { 646 struct nfs4_sequence_args seq_args; 647 const struct nfs_fh *fh; 648 struct qstr name; 649 }; 650 651 struct nfs_removeres { 652 struct nfs4_sequence_res seq_res; 653 struct nfs_server *server; 654 struct nfs_fattr *dir_attr; 655 struct nfs4_change_info cinfo; 656 }; 657 658 /* 659 * Common arguments to the rename call 660 */ 661 struct nfs_renameargs { 662 struct nfs4_sequence_args seq_args; 663 const struct nfs_fh *old_dir; 664 const struct nfs_fh *new_dir; 665 const struct qstr *old_name; 666 const struct qstr *new_name; 667 }; 668 669 struct nfs_renameres { 670 struct nfs4_sequence_res seq_res; 671 struct nfs_server *server; 672 struct nfs4_change_info old_cinfo; 673 struct nfs_fattr *old_fattr; 674 struct nfs4_change_info new_cinfo; 675 struct nfs_fattr *new_fattr; 676 }; 677 678 /* parsed sec= options */ 679 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 680 struct nfs_auth_info { 681 unsigned int flavor_len; 682 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 683 }; 684 685 /* 686 * Argument struct for decode_entry function 687 */ 688 struct nfs_entry { 689 __u64 ino; 690 __u64 cookie, 691 prev_cookie; 692 const char * name; 693 unsigned int len; 694 int eof; 695 struct nfs_fh * fh; 696 struct nfs_fattr * fattr; 697 struct nfs4_label *label; 698 unsigned char d_type; 699 struct nfs_server * server; 700 }; 701 702 /* 703 * The following types are for NFSv2 only. 704 */ 705 struct nfs_sattrargs { 706 struct nfs_fh * fh; 707 struct iattr * sattr; 708 }; 709 710 struct nfs_diropargs { 711 struct nfs_fh * fh; 712 const char * name; 713 unsigned int len; 714 }; 715 716 struct nfs_createargs { 717 struct nfs_fh * fh; 718 const char * name; 719 unsigned int len; 720 struct iattr * sattr; 721 }; 722 723 struct nfs_setattrargs { 724 struct nfs4_sequence_args seq_args; 725 struct nfs_fh * fh; 726 nfs4_stateid stateid; 727 struct iattr * iap; 728 const struct nfs_server * server; /* Needed for name mapping */ 729 const u32 * bitmask; 730 const struct nfs4_label *label; 731 }; 732 733 struct nfs_setaclargs { 734 struct nfs4_sequence_args seq_args; 735 struct nfs_fh * fh; 736 size_t acl_len; 737 struct page ** acl_pages; 738 }; 739 740 struct nfs_setaclres { 741 struct nfs4_sequence_res seq_res; 742 }; 743 744 struct nfs_getaclargs { 745 struct nfs4_sequence_args seq_args; 746 struct nfs_fh * fh; 747 size_t acl_len; 748 struct page ** acl_pages; 749 }; 750 751 /* getxattr ACL interface flags */ 752 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 753 struct nfs_getaclres { 754 struct nfs4_sequence_res seq_res; 755 size_t acl_len; 756 size_t acl_data_offset; 757 int acl_flags; 758 struct page * acl_scratch; 759 }; 760 761 struct nfs_setattrres { 762 struct nfs4_sequence_res seq_res; 763 struct nfs_fattr * fattr; 764 struct nfs4_label *label; 765 const struct nfs_server * server; 766 }; 767 768 struct nfs_linkargs { 769 struct nfs_fh * fromfh; 770 struct nfs_fh * tofh; 771 const char * toname; 772 unsigned int tolen; 773 }; 774 775 struct nfs_symlinkargs { 776 struct nfs_fh * fromfh; 777 const char * fromname; 778 unsigned int fromlen; 779 struct page ** pages; 780 unsigned int pathlen; 781 struct iattr * sattr; 782 }; 783 784 struct nfs_readdirargs { 785 struct nfs_fh * fh; 786 __u32 cookie; 787 unsigned int count; 788 struct page ** pages; 789 }; 790 791 struct nfs3_getaclargs { 792 struct nfs_fh * fh; 793 int mask; 794 struct page ** pages; 795 }; 796 797 struct nfs3_setaclargs { 798 struct inode * inode; 799 int mask; 800 struct posix_acl * acl_access; 801 struct posix_acl * acl_default; 802 size_t len; 803 unsigned int npages; 804 struct page ** pages; 805 }; 806 807 struct nfs_diropok { 808 struct nfs_fh * fh; 809 struct nfs_fattr * fattr; 810 }; 811 812 struct nfs_readlinkargs { 813 struct nfs_fh * fh; 814 unsigned int pgbase; 815 unsigned int pglen; 816 struct page ** pages; 817 }; 818 819 struct nfs3_sattrargs { 820 struct nfs_fh * fh; 821 struct iattr * sattr; 822 unsigned int guard; 823 struct timespec guardtime; 824 }; 825 826 struct nfs3_diropargs { 827 struct nfs_fh * fh; 828 const char * name; 829 unsigned int len; 830 }; 831 832 struct nfs3_accessargs { 833 struct nfs_fh * fh; 834 __u32 access; 835 }; 836 837 struct nfs3_createargs { 838 struct nfs_fh * fh; 839 const char * name; 840 unsigned int len; 841 struct iattr * sattr; 842 enum nfs3_createmode createmode; 843 __be32 verifier[2]; 844 }; 845 846 struct nfs3_mkdirargs { 847 struct nfs_fh * fh; 848 const char * name; 849 unsigned int len; 850 struct iattr * sattr; 851 }; 852 853 struct nfs3_symlinkargs { 854 struct nfs_fh * fromfh; 855 const char * fromname; 856 unsigned int fromlen; 857 struct page ** pages; 858 unsigned int pathlen; 859 struct iattr * sattr; 860 }; 861 862 struct nfs3_mknodargs { 863 struct nfs_fh * fh; 864 const char * name; 865 unsigned int len; 866 enum nfs3_ftype type; 867 struct iattr * sattr; 868 dev_t rdev; 869 }; 870 871 struct nfs3_linkargs { 872 struct nfs_fh * fromfh; 873 struct nfs_fh * tofh; 874 const char * toname; 875 unsigned int tolen; 876 }; 877 878 struct nfs3_readdirargs { 879 struct nfs_fh * fh; 880 __u64 cookie; 881 __be32 verf[2]; 882 bool plus; 883 unsigned int count; 884 struct page ** pages; 885 }; 886 887 struct nfs3_diropres { 888 struct nfs_fattr * dir_attr; 889 struct nfs_fh * fh; 890 struct nfs_fattr * fattr; 891 }; 892 893 struct nfs3_accessres { 894 struct nfs_fattr * fattr; 895 __u32 access; 896 }; 897 898 struct nfs3_readlinkargs { 899 struct nfs_fh * fh; 900 unsigned int pgbase; 901 unsigned int pglen; 902 struct page ** pages; 903 }; 904 905 struct nfs3_linkres { 906 struct nfs_fattr * dir_attr; 907 struct nfs_fattr * fattr; 908 }; 909 910 struct nfs3_readdirres { 911 struct nfs_fattr * dir_attr; 912 __be32 * verf; 913 bool plus; 914 }; 915 916 struct nfs3_getaclres { 917 struct nfs_fattr * fattr; 918 int mask; 919 unsigned int acl_access_count; 920 unsigned int acl_default_count; 921 struct posix_acl * acl_access; 922 struct posix_acl * acl_default; 923 }; 924 925 #if IS_ENABLED(CONFIG_NFS_V4) 926 927 typedef u64 clientid4; 928 929 struct nfs4_accessargs { 930 struct nfs4_sequence_args seq_args; 931 const struct nfs_fh * fh; 932 const u32 * bitmask; 933 u32 access; 934 }; 935 936 struct nfs4_accessres { 937 struct nfs4_sequence_res seq_res; 938 const struct nfs_server * server; 939 struct nfs_fattr * fattr; 940 u32 supported; 941 u32 access; 942 }; 943 944 struct nfs4_create_arg { 945 struct nfs4_sequence_args seq_args; 946 u32 ftype; 947 union { 948 struct { 949 struct page ** pages; 950 unsigned int len; 951 } symlink; /* NF4LNK */ 952 struct { 953 u32 specdata1; 954 u32 specdata2; 955 } device; /* NF4BLK, NF4CHR */ 956 } u; 957 const struct qstr * name; 958 const struct nfs_server * server; 959 const struct iattr * attrs; 960 const struct nfs_fh * dir_fh; 961 const u32 * bitmask; 962 const struct nfs4_label *label; 963 umode_t umask; 964 }; 965 966 struct nfs4_create_res { 967 struct nfs4_sequence_res seq_res; 968 const struct nfs_server * server; 969 struct nfs_fh * fh; 970 struct nfs_fattr * fattr; 971 struct nfs4_label *label; 972 struct nfs4_change_info dir_cinfo; 973 }; 974 975 struct nfs4_fsinfo_arg { 976 struct nfs4_sequence_args seq_args; 977 const struct nfs_fh * fh; 978 const u32 * bitmask; 979 }; 980 981 struct nfs4_fsinfo_res { 982 struct nfs4_sequence_res seq_res; 983 struct nfs_fsinfo *fsinfo; 984 }; 985 986 struct nfs4_getattr_arg { 987 struct nfs4_sequence_args seq_args; 988 const struct nfs_fh * fh; 989 const u32 * bitmask; 990 }; 991 992 struct nfs4_getattr_res { 993 struct nfs4_sequence_res seq_res; 994 const struct nfs_server * server; 995 struct nfs_fattr * fattr; 996 struct nfs4_label *label; 997 }; 998 999 struct nfs4_link_arg { 1000 struct nfs4_sequence_args seq_args; 1001 const struct nfs_fh * fh; 1002 const struct nfs_fh * dir_fh; 1003 const struct qstr * name; 1004 const u32 * bitmask; 1005 }; 1006 1007 struct nfs4_link_res { 1008 struct nfs4_sequence_res seq_res; 1009 const struct nfs_server * server; 1010 struct nfs_fattr * fattr; 1011 struct nfs4_label *label; 1012 struct nfs4_change_info cinfo; 1013 struct nfs_fattr * dir_attr; 1014 }; 1015 1016 struct nfs4_lookup_arg { 1017 struct nfs4_sequence_args seq_args; 1018 const struct nfs_fh * dir_fh; 1019 const struct qstr * name; 1020 const u32 * bitmask; 1021 }; 1022 1023 struct nfs4_lookup_res { 1024 struct nfs4_sequence_res seq_res; 1025 const struct nfs_server * server; 1026 struct nfs_fattr * fattr; 1027 struct nfs_fh * fh; 1028 struct nfs4_label *label; 1029 }; 1030 1031 struct nfs4_lookupp_arg { 1032 struct nfs4_sequence_args seq_args; 1033 const struct nfs_fh *fh; 1034 const u32 *bitmask; 1035 }; 1036 1037 struct nfs4_lookupp_res { 1038 struct nfs4_sequence_res seq_res; 1039 const struct nfs_server *server; 1040 struct nfs_fattr *fattr; 1041 struct nfs_fh *fh; 1042 struct nfs4_label *label; 1043 }; 1044 1045 struct nfs4_lookup_root_arg { 1046 struct nfs4_sequence_args seq_args; 1047 const u32 * bitmask; 1048 }; 1049 1050 struct nfs4_pathconf_arg { 1051 struct nfs4_sequence_args seq_args; 1052 const struct nfs_fh * fh; 1053 const u32 * bitmask; 1054 }; 1055 1056 struct nfs4_pathconf_res { 1057 struct nfs4_sequence_res seq_res; 1058 struct nfs_pathconf *pathconf; 1059 }; 1060 1061 struct nfs4_readdir_arg { 1062 struct nfs4_sequence_args seq_args; 1063 const struct nfs_fh * fh; 1064 u64 cookie; 1065 nfs4_verifier verifier; 1066 u32 count; 1067 struct page ** pages; /* zero-copy data */ 1068 unsigned int pgbase; /* zero-copy data */ 1069 const u32 * bitmask; 1070 bool plus; 1071 }; 1072 1073 struct nfs4_readdir_res { 1074 struct nfs4_sequence_res seq_res; 1075 nfs4_verifier verifier; 1076 unsigned int pgbase; 1077 }; 1078 1079 struct nfs4_readlink { 1080 struct nfs4_sequence_args seq_args; 1081 const struct nfs_fh * fh; 1082 unsigned int pgbase; 1083 unsigned int pglen; /* zero-copy data */ 1084 struct page ** pages; /* zero-copy data */ 1085 }; 1086 1087 struct nfs4_readlink_res { 1088 struct nfs4_sequence_res seq_res; 1089 }; 1090 1091 struct nfs4_setclientid { 1092 const nfs4_verifier * sc_verifier; 1093 u32 sc_prog; 1094 unsigned int sc_netid_len; 1095 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1096 unsigned int sc_uaddr_len; 1097 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1098 struct nfs_client *sc_clnt; 1099 struct rpc_cred *sc_cred; 1100 }; 1101 1102 struct nfs4_setclientid_res { 1103 u64 clientid; 1104 nfs4_verifier confirm; 1105 }; 1106 1107 struct nfs4_statfs_arg { 1108 struct nfs4_sequence_args seq_args; 1109 const struct nfs_fh * fh; 1110 const u32 * bitmask; 1111 }; 1112 1113 struct nfs4_statfs_res { 1114 struct nfs4_sequence_res seq_res; 1115 struct nfs_fsstat *fsstat; 1116 }; 1117 1118 struct nfs4_server_caps_arg { 1119 struct nfs4_sequence_args seq_args; 1120 struct nfs_fh *fhandle; 1121 const u32 * bitmask; 1122 }; 1123 1124 struct nfs4_server_caps_res { 1125 struct nfs4_sequence_res seq_res; 1126 u32 attr_bitmask[3]; 1127 u32 exclcreat_bitmask[3]; 1128 u32 acl_bitmask; 1129 u32 has_links; 1130 u32 has_symlinks; 1131 u32 fh_expire_type; 1132 }; 1133 1134 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1135 struct nfs4_pathname { 1136 unsigned int ncomponents; 1137 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1138 }; 1139 1140 #define NFS4_FS_LOCATION_MAXSERVERS 10 1141 struct nfs4_fs_location { 1142 unsigned int nservers; 1143 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1144 struct nfs4_pathname rootpath; 1145 }; 1146 1147 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1148 struct nfs4_fs_locations { 1149 struct nfs_fattr fattr; 1150 const struct nfs_server *server; 1151 struct nfs4_pathname fs_path; 1152 int nlocations; 1153 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1154 }; 1155 1156 struct nfs4_fs_locations_arg { 1157 struct nfs4_sequence_args seq_args; 1158 const struct nfs_fh *dir_fh; 1159 const struct nfs_fh *fh; 1160 const struct qstr *name; 1161 struct page *page; 1162 const u32 *bitmask; 1163 clientid4 clientid; 1164 unsigned char migration:1, renew:1; 1165 }; 1166 1167 struct nfs4_fs_locations_res { 1168 struct nfs4_sequence_res seq_res; 1169 struct nfs4_fs_locations *fs_locations; 1170 unsigned char migration:1, renew:1; 1171 }; 1172 1173 struct nfs4_secinfo4 { 1174 u32 flavor; 1175 struct rpcsec_gss_info flavor_info; 1176 }; 1177 1178 struct nfs4_secinfo_flavors { 1179 unsigned int num_flavors; 1180 struct nfs4_secinfo4 flavors[0]; 1181 }; 1182 1183 struct nfs4_secinfo_arg { 1184 struct nfs4_sequence_args seq_args; 1185 const struct nfs_fh *dir_fh; 1186 const struct qstr *name; 1187 }; 1188 1189 struct nfs4_secinfo_res { 1190 struct nfs4_sequence_res seq_res; 1191 struct nfs4_secinfo_flavors *flavors; 1192 }; 1193 1194 struct nfs4_fsid_present_arg { 1195 struct nfs4_sequence_args seq_args; 1196 const struct nfs_fh *fh; 1197 clientid4 clientid; 1198 unsigned char renew:1; 1199 }; 1200 1201 struct nfs4_fsid_present_res { 1202 struct nfs4_sequence_res seq_res; 1203 struct nfs_fh *fh; 1204 unsigned char renew:1; 1205 }; 1206 1207 #endif /* CONFIG_NFS_V4 */ 1208 1209 struct nfstime4 { 1210 u64 seconds; 1211 u32 nseconds; 1212 }; 1213 1214 #ifdef CONFIG_NFS_V4_1 1215 1216 struct pnfs_commit_bucket { 1217 struct list_head written; 1218 struct list_head committing; 1219 struct pnfs_layout_segment *wlseg; 1220 struct pnfs_layout_segment *clseg; 1221 struct nfs_writeverf direct_verf; 1222 }; 1223 1224 struct pnfs_ds_commit_info { 1225 int nwritten; 1226 int ncommitting; 1227 int nbuckets; 1228 struct pnfs_commit_bucket *buckets; 1229 }; 1230 1231 struct nfs41_state_protection { 1232 u32 how; 1233 struct nfs4_op_map enforce; 1234 struct nfs4_op_map allow; 1235 }; 1236 1237 struct nfs41_exchange_id_args { 1238 struct nfs_client *client; 1239 nfs4_verifier verifier; 1240 u32 flags; 1241 struct nfs41_state_protection state_protect; 1242 }; 1243 1244 struct nfs41_server_owner { 1245 uint64_t minor_id; 1246 uint32_t major_id_sz; 1247 char major_id[NFS4_OPAQUE_LIMIT]; 1248 }; 1249 1250 struct nfs41_server_scope { 1251 uint32_t server_scope_sz; 1252 char server_scope[NFS4_OPAQUE_LIMIT]; 1253 }; 1254 1255 struct nfs41_impl_id { 1256 char domain[NFS4_OPAQUE_LIMIT + 1]; 1257 char name[NFS4_OPAQUE_LIMIT + 1]; 1258 struct nfstime4 date; 1259 }; 1260 1261 struct nfs41_bind_conn_to_session_args { 1262 struct nfs_client *client; 1263 struct nfs4_sessionid sessionid; 1264 u32 dir; 1265 bool use_conn_in_rdma_mode; 1266 }; 1267 1268 struct nfs41_bind_conn_to_session_res { 1269 struct nfs4_sessionid sessionid; 1270 u32 dir; 1271 bool use_conn_in_rdma_mode; 1272 }; 1273 1274 struct nfs41_exchange_id_res { 1275 u64 clientid; 1276 u32 seqid; 1277 u32 flags; 1278 struct nfs41_server_owner *server_owner; 1279 struct nfs41_server_scope *server_scope; 1280 struct nfs41_impl_id *impl_id; 1281 struct nfs41_state_protection state_protect; 1282 }; 1283 1284 struct nfs41_create_session_args { 1285 struct nfs_client *client; 1286 u64 clientid; 1287 uint32_t seqid; 1288 uint32_t flags; 1289 uint32_t cb_program; 1290 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1291 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1292 }; 1293 1294 struct nfs41_create_session_res { 1295 struct nfs4_sessionid sessionid; 1296 uint32_t seqid; 1297 uint32_t flags; 1298 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1299 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1300 }; 1301 1302 struct nfs41_reclaim_complete_args { 1303 struct nfs4_sequence_args seq_args; 1304 /* In the future extend to include curr_fh for use with migration */ 1305 unsigned char one_fs:1; 1306 }; 1307 1308 struct nfs41_reclaim_complete_res { 1309 struct nfs4_sequence_res seq_res; 1310 }; 1311 1312 #define SECINFO_STYLE_CURRENT_FH 0 1313 #define SECINFO_STYLE_PARENT 1 1314 struct nfs41_secinfo_no_name_args { 1315 struct nfs4_sequence_args seq_args; 1316 int style; 1317 }; 1318 1319 struct nfs41_test_stateid_args { 1320 struct nfs4_sequence_args seq_args; 1321 nfs4_stateid *stateid; 1322 }; 1323 1324 struct nfs41_test_stateid_res { 1325 struct nfs4_sequence_res seq_res; 1326 unsigned int status; 1327 }; 1328 1329 struct nfs41_free_stateid_args { 1330 struct nfs4_sequence_args seq_args; 1331 nfs4_stateid stateid; 1332 }; 1333 1334 struct nfs41_free_stateid_res { 1335 struct nfs4_sequence_res seq_res; 1336 unsigned int status; 1337 }; 1338 1339 static inline void 1340 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1341 { 1342 kfree(cinfo->buckets); 1343 } 1344 1345 #else 1346 1347 struct pnfs_ds_commit_info { 1348 }; 1349 1350 static inline void 1351 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1352 { 1353 } 1354 1355 #endif /* CONFIG_NFS_V4_1 */ 1356 1357 #ifdef CONFIG_NFS_V4_2 1358 struct nfs42_falloc_args { 1359 struct nfs4_sequence_args seq_args; 1360 1361 struct nfs_fh *falloc_fh; 1362 nfs4_stateid falloc_stateid; 1363 u64 falloc_offset; 1364 u64 falloc_length; 1365 const u32 *falloc_bitmask; 1366 }; 1367 1368 struct nfs42_falloc_res { 1369 struct nfs4_sequence_res seq_res; 1370 unsigned int status; 1371 1372 struct nfs_fattr *falloc_fattr; 1373 const struct nfs_server *falloc_server; 1374 }; 1375 1376 struct nfs42_copy_args { 1377 struct nfs4_sequence_args seq_args; 1378 1379 struct nfs_fh *src_fh; 1380 nfs4_stateid src_stateid; 1381 u64 src_pos; 1382 1383 struct nfs_fh *dst_fh; 1384 nfs4_stateid dst_stateid; 1385 u64 dst_pos; 1386 1387 u64 count; 1388 }; 1389 1390 struct nfs42_write_res { 1391 u64 count; 1392 struct nfs_writeverf verifier; 1393 }; 1394 1395 struct nfs42_copy_res { 1396 struct nfs4_sequence_res seq_res; 1397 struct nfs42_write_res write_res; 1398 bool consecutive; 1399 bool synchronous; 1400 struct nfs_commitres commit_res; 1401 }; 1402 1403 struct nfs42_seek_args { 1404 struct nfs4_sequence_args seq_args; 1405 1406 struct nfs_fh *sa_fh; 1407 nfs4_stateid sa_stateid; 1408 u64 sa_offset; 1409 u32 sa_what; 1410 }; 1411 1412 struct nfs42_seek_res { 1413 struct nfs4_sequence_res seq_res; 1414 unsigned int status; 1415 1416 u32 sr_eof; 1417 u64 sr_offset; 1418 }; 1419 #endif 1420 1421 struct nfs_page; 1422 1423 #define NFS_PAGEVEC_SIZE (8U) 1424 1425 struct nfs_page_array { 1426 struct page **pagevec; 1427 unsigned int npages; /* Max length of pagevec */ 1428 struct page *page_array[NFS_PAGEVEC_SIZE]; 1429 }; 1430 1431 /* used as flag bits in nfs_pgio_header */ 1432 enum { 1433 NFS_IOHDR_ERROR = 0, 1434 NFS_IOHDR_EOF, 1435 NFS_IOHDR_REDO, 1436 NFS_IOHDR_STAT, 1437 }; 1438 1439 struct nfs_io_completion; 1440 struct nfs_pgio_header { 1441 struct inode *inode; 1442 struct rpc_cred *cred; 1443 struct list_head pages; 1444 struct nfs_page *req; 1445 struct nfs_writeverf verf; /* Used for writes */ 1446 fmode_t rw_mode; 1447 struct pnfs_layout_segment *lseg; 1448 loff_t io_start; 1449 const struct rpc_call_ops *mds_ops; 1450 void (*release) (struct nfs_pgio_header *hdr); 1451 const struct nfs_pgio_completion_ops *completion_ops; 1452 const struct nfs_rw_ops *rw_ops; 1453 struct nfs_io_completion *io_completion; 1454 struct nfs_direct_req *dreq; 1455 spinlock_t lock; 1456 /* fields protected by lock */ 1457 int pnfs_error; 1458 int error; /* merge with pnfs_error */ 1459 unsigned long good_bytes; /* boundary of good data */ 1460 unsigned long flags; 1461 1462 /* 1463 * rpc data 1464 */ 1465 struct rpc_task task; 1466 struct nfs_fattr fattr; 1467 struct nfs_pgio_args args; /* argument struct */ 1468 struct nfs_pgio_res res; /* result struct */ 1469 unsigned long timestamp; /* For lease renewal */ 1470 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1471 __u64 mds_offset; /* Filelayout dense stripe */ 1472 struct nfs_page_array page_array; 1473 struct nfs_client *ds_clp; /* pNFS data server */ 1474 int ds_commit_idx; /* ds index if ds_clp is set */ 1475 int pgio_mirror_idx;/* mirror index in pgio layer */ 1476 }; 1477 1478 struct nfs_mds_commit_info { 1479 atomic_t rpcs_out; 1480 atomic_long_t ncommit; 1481 struct list_head list; 1482 }; 1483 1484 struct nfs_commit_info; 1485 struct nfs_commit_data; 1486 struct nfs_inode; 1487 struct nfs_commit_completion_ops { 1488 void (*completion) (struct nfs_commit_data *data); 1489 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1490 }; 1491 1492 struct nfs_commit_info { 1493 struct inode *inode; /* Needed for inode->i_lock */ 1494 struct nfs_mds_commit_info *mds; 1495 struct pnfs_ds_commit_info *ds; 1496 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1497 const struct nfs_commit_completion_ops *completion_ops; 1498 }; 1499 1500 struct nfs_commit_data { 1501 struct rpc_task task; 1502 struct inode *inode; 1503 struct rpc_cred *cred; 1504 struct nfs_fattr fattr; 1505 struct nfs_writeverf verf; 1506 struct list_head pages; /* Coalesced requests we wish to flush */ 1507 struct list_head list; /* lists of struct nfs_write_data */ 1508 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1509 struct nfs_commitargs args; /* argument struct */ 1510 struct nfs_commitres res; /* result struct */ 1511 struct nfs_open_context *context; 1512 struct pnfs_layout_segment *lseg; 1513 struct nfs_client *ds_clp; /* pNFS data server */ 1514 int ds_commit_index; 1515 loff_t lwb; 1516 const struct rpc_call_ops *mds_ops; 1517 const struct nfs_commit_completion_ops *completion_ops; 1518 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1519 unsigned long flags; 1520 }; 1521 1522 struct nfs_pgio_completion_ops { 1523 void (*error_cleanup)(struct list_head *head); 1524 void (*init_hdr)(struct nfs_pgio_header *hdr); 1525 void (*completion)(struct nfs_pgio_header *hdr); 1526 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1527 }; 1528 1529 struct nfs_unlinkdata { 1530 struct nfs_removeargs args; 1531 struct nfs_removeres res; 1532 struct dentry *dentry; 1533 wait_queue_head_t wq; 1534 struct rpc_cred *cred; 1535 struct nfs_fattr dir_attr; 1536 long timeout; 1537 }; 1538 1539 struct nfs_renamedata { 1540 struct nfs_renameargs args; 1541 struct nfs_renameres res; 1542 struct rpc_cred *cred; 1543 struct inode *old_dir; 1544 struct dentry *old_dentry; 1545 struct nfs_fattr old_fattr; 1546 struct inode *new_dir; 1547 struct dentry *new_dentry; 1548 struct nfs_fattr new_fattr; 1549 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1550 long timeout; 1551 bool cancelled; 1552 }; 1553 1554 struct nfs_access_entry; 1555 struct nfs_client; 1556 struct rpc_timeout; 1557 struct nfs_subversion; 1558 struct nfs_mount_info; 1559 struct nfs_client_initdata; 1560 struct nfs_pageio_descriptor; 1561 1562 /* 1563 * RPC procedure vector for NFSv2/NFSv3 demuxing 1564 */ 1565 struct nfs_rpc_ops { 1566 u32 version; /* Protocol version */ 1567 const struct dentry_operations *dentry_ops; 1568 const struct inode_operations *dir_inode_ops; 1569 const struct inode_operations *file_inode_ops; 1570 const struct file_operations *file_ops; 1571 const struct nlmclnt_operations *nlmclnt_ops; 1572 1573 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1574 struct nfs_fsinfo *); 1575 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *, 1576 struct nfs_fh *, struct nfs_fattr *); 1577 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *, 1578 struct nfs_subversion *); 1579 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1580 struct nfs_fattr *, struct nfs4_label *); 1581 int (*setattr) (struct dentry *, struct nfs_fattr *, 1582 struct iattr *); 1583 int (*lookup) (struct inode *, const struct qstr *, 1584 struct nfs_fh *, struct nfs_fattr *, 1585 struct nfs4_label *); 1586 int (*lookupp) (struct inode *, struct nfs_fh *, 1587 struct nfs_fattr *, struct nfs4_label *); 1588 int (*access) (struct inode *, struct nfs_access_entry *); 1589 int (*readlink)(struct inode *, struct page *, unsigned int, 1590 unsigned int); 1591 int (*create) (struct inode *, struct dentry *, 1592 struct iattr *, int); 1593 int (*remove) (struct inode *, const struct qstr *); 1594 void (*unlink_setup) (struct rpc_message *, struct inode *dir); 1595 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1596 int (*unlink_done) (struct rpc_task *, struct inode *); 1597 void (*rename_setup) (struct rpc_message *msg, struct inode *dir); 1598 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1599 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1600 int (*link) (struct inode *, struct inode *, const struct qstr *); 1601 int (*symlink) (struct inode *, struct dentry *, struct page *, 1602 unsigned int, struct iattr *); 1603 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1604 int (*rmdir) (struct inode *, const struct qstr *); 1605 int (*readdir) (struct dentry *, struct rpc_cred *, 1606 u64, struct page **, unsigned int, bool); 1607 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1608 dev_t); 1609 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1610 struct nfs_fsstat *); 1611 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1612 struct nfs_fsinfo *); 1613 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1614 struct nfs_pathconf *); 1615 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1616 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1617 int (*pgio_rpc_prepare)(struct rpc_task *, 1618 struct nfs_pgio_header *); 1619 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1620 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1621 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *); 1622 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1623 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *); 1624 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1625 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1626 int (*lock)(struct file *, int, struct file_lock *); 1627 int (*lock_check_bounds)(const struct file_lock *); 1628 void (*clear_acl_cache)(struct inode *); 1629 void (*close_context)(struct nfs_open_context *ctx, int); 1630 struct inode * (*open_context) (struct inode *dir, 1631 struct nfs_open_context *ctx, 1632 int open_flags, 1633 struct iattr *iattr, 1634 int *); 1635 int (*have_delegation)(struct inode *, fmode_t); 1636 int (*return_delegation)(struct inode *); 1637 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1638 struct nfs_client *(*init_client) (struct nfs_client *, 1639 const struct nfs_client_initdata *); 1640 void (*free_client) (struct nfs_client *); 1641 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *); 1642 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1643 struct nfs_fattr *, rpc_authflavor_t); 1644 }; 1645 1646 /* 1647 * NFS_CALL(getattr, inode, (fattr)); 1648 * into 1649 * NFS_PROTO(inode)->getattr(fattr); 1650 */ 1651 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1652 1653 /* 1654 * Function vectors etc. for the NFS client 1655 */ 1656 extern const struct nfs_rpc_ops nfs_v2_clientops; 1657 extern const struct nfs_rpc_ops nfs_v3_clientops; 1658 extern const struct nfs_rpc_ops nfs_v4_clientops; 1659 extern const struct rpc_version nfs_version2; 1660 extern const struct rpc_version nfs_version3; 1661 extern const struct rpc_version nfs_version4; 1662 1663 extern const struct rpc_version nfsacl_version3; 1664 extern const struct rpc_program nfsacl_program; 1665 1666 #endif 1667