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 int status; 263 __u32 return_on_close; 264 struct pnfs_layout_range range; 265 __u32 type; 266 nfs4_stateid stateid; 267 struct nfs4_layoutdriver_data *layoutp; 268 }; 269 270 struct nfs4_layoutget { 271 struct nfs4_layoutget_args args; 272 struct nfs4_layoutget_res res; 273 struct rpc_cred *cred; 274 unsigned callback_count; 275 gfp_t gfp_flags; 276 }; 277 278 struct nfs4_getdeviceinfo_args { 279 struct nfs4_sequence_args seq_args; 280 struct pnfs_device *pdev; 281 __u32 notify_types; 282 }; 283 284 struct nfs4_getdeviceinfo_res { 285 struct nfs4_sequence_res seq_res; 286 struct pnfs_device *pdev; 287 __u32 notification; 288 }; 289 290 struct nfs4_layoutcommit_args { 291 struct nfs4_sequence_args seq_args; 292 nfs4_stateid stateid; 293 __u64 lastbytewritten; 294 struct inode *inode; 295 const u32 *bitmask; 296 size_t layoutupdate_len; 297 struct page *layoutupdate_page; 298 struct page **layoutupdate_pages; 299 __be32 *start_p; 300 }; 301 302 struct nfs4_layoutcommit_res { 303 struct nfs4_sequence_res seq_res; 304 struct nfs_fattr *fattr; 305 const struct nfs_server *server; 306 int status; 307 }; 308 309 struct nfs4_layoutcommit_data { 310 struct rpc_task task; 311 struct nfs_fattr fattr; 312 struct list_head lseg_list; 313 struct rpc_cred *cred; 314 struct inode *inode; 315 struct nfs4_layoutcommit_args args; 316 struct nfs4_layoutcommit_res res; 317 }; 318 319 struct nfs4_layoutreturn_args { 320 struct nfs4_sequence_args seq_args; 321 struct pnfs_layout_hdr *layout; 322 struct inode *inode; 323 struct pnfs_layout_range range; 324 nfs4_stateid stateid; 325 __u32 layout_type; 326 struct nfs4_xdr_opaque_data *ld_private; 327 }; 328 329 struct nfs4_layoutreturn_res { 330 struct nfs4_sequence_res seq_res; 331 u32 lrs_present; 332 nfs4_stateid stateid; 333 }; 334 335 struct nfs4_layoutreturn { 336 struct nfs4_layoutreturn_args args; 337 struct nfs4_layoutreturn_res res; 338 struct rpc_cred *cred; 339 struct nfs_client *clp; 340 struct inode *inode; 341 int rpc_status; 342 struct nfs4_xdr_opaque_data ld_private; 343 }; 344 345 #define PNFS_LAYOUTSTATS_MAXSIZE 256 346 347 struct nfs42_layoutstat_args; 348 struct nfs42_layoutstat_devinfo; 349 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 350 struct nfs42_layoutstat_args *, 351 struct nfs42_layoutstat_devinfo *); 352 353 /* Per file per deviceid layoutstats */ 354 struct nfs42_layoutstat_devinfo { 355 struct nfs4_deviceid dev_id; 356 __u64 offset; 357 __u64 length; 358 __u64 read_count; 359 __u64 read_bytes; 360 __u64 write_count; 361 __u64 write_bytes; 362 __u32 layout_type; 363 struct nfs4_xdr_opaque_data ld_private; 364 }; 365 366 struct nfs42_layoutstat_args { 367 struct nfs4_sequence_args seq_args; 368 struct nfs_fh *fh; 369 struct inode *inode; 370 nfs4_stateid stateid; 371 int num_dev; 372 struct nfs42_layoutstat_devinfo *devinfo; 373 }; 374 375 struct nfs42_layoutstat_res { 376 struct nfs4_sequence_res seq_res; 377 int num_dev; 378 int rpc_status; 379 }; 380 381 struct nfs42_layoutstat_data { 382 struct inode *inode; 383 struct nfs42_layoutstat_args args; 384 struct nfs42_layoutstat_res res; 385 }; 386 387 struct nfs42_clone_args { 388 struct nfs4_sequence_args seq_args; 389 struct nfs_fh *src_fh; 390 struct nfs_fh *dst_fh; 391 nfs4_stateid src_stateid; 392 nfs4_stateid dst_stateid; 393 __u64 src_offset; 394 __u64 dst_offset; 395 __u64 count; 396 const u32 *dst_bitmask; 397 }; 398 399 struct nfs42_clone_res { 400 struct nfs4_sequence_res seq_res; 401 unsigned int rpc_status; 402 struct nfs_fattr *dst_fattr; 403 const struct nfs_server *server; 404 }; 405 406 struct stateowner_id { 407 __u64 create_time; 408 __u32 uniquifier; 409 }; 410 411 /* 412 * Arguments to the open call. 413 */ 414 struct nfs_openargs { 415 struct nfs4_sequence_args seq_args; 416 const struct nfs_fh * fh; 417 struct nfs_seqid * seqid; 418 int open_flags; 419 fmode_t fmode; 420 u32 share_access; 421 u32 access; 422 __u64 clientid; 423 struct stateowner_id id; 424 union { 425 struct { 426 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 427 nfs4_verifier verifier; /* EXCLUSIVE */ 428 }; 429 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 430 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 431 } u; 432 const struct qstr * name; 433 const struct nfs_server *server; /* Needed for ID mapping */ 434 const u32 * bitmask; 435 const u32 * open_bitmap; 436 enum open_claim_type4 claim; 437 enum createmode4 createmode; 438 const struct nfs4_label *label; 439 umode_t umask; 440 struct nfs4_layoutget_args *lg_args; 441 }; 442 443 struct nfs_openres { 444 struct nfs4_sequence_res seq_res; 445 nfs4_stateid stateid; 446 struct nfs_fh fh; 447 struct nfs4_change_info cinfo; 448 __u32 rflags; 449 struct nfs_fattr * f_attr; 450 struct nfs4_label *f_label; 451 struct nfs_seqid * seqid; 452 const struct nfs_server *server; 453 fmode_t delegation_type; 454 nfs4_stateid delegation; 455 unsigned long pagemod_limit; 456 __u32 do_recall; 457 __u32 attrset[NFS4_BITMAP_SIZE]; 458 struct nfs4_string *owner; 459 struct nfs4_string *group_owner; 460 __u32 access_request; 461 __u32 access_supported; 462 __u32 access_result; 463 struct nfs4_layoutget_res *lg_res; 464 }; 465 466 /* 467 * Arguments to the open_confirm call. 468 */ 469 struct nfs_open_confirmargs { 470 struct nfs4_sequence_args seq_args; 471 const struct nfs_fh * fh; 472 nfs4_stateid * stateid; 473 struct nfs_seqid * seqid; 474 }; 475 476 struct nfs_open_confirmres { 477 struct nfs4_sequence_res seq_res; 478 nfs4_stateid stateid; 479 struct nfs_seqid * seqid; 480 }; 481 482 /* 483 * Arguments to the close call. 484 */ 485 struct nfs_closeargs { 486 struct nfs4_sequence_args seq_args; 487 struct nfs_fh * fh; 488 nfs4_stateid stateid; 489 struct nfs_seqid * seqid; 490 fmode_t fmode; 491 u32 share_access; 492 const u32 * bitmask; 493 struct nfs4_layoutreturn_args *lr_args; 494 }; 495 496 struct nfs_closeres { 497 struct nfs4_sequence_res seq_res; 498 nfs4_stateid stateid; 499 struct nfs_fattr * fattr; 500 struct nfs_seqid * seqid; 501 const struct nfs_server *server; 502 struct nfs4_layoutreturn_res *lr_res; 503 int lr_ret; 504 }; 505 /* 506 * * Arguments to the lock,lockt, and locku call. 507 * */ 508 struct nfs_lowner { 509 __u64 clientid; 510 __u64 id; 511 dev_t s_dev; 512 }; 513 514 struct nfs_lock_args { 515 struct nfs4_sequence_args seq_args; 516 struct nfs_fh * fh; 517 struct file_lock * fl; 518 struct nfs_seqid * lock_seqid; 519 nfs4_stateid lock_stateid; 520 struct nfs_seqid * open_seqid; 521 nfs4_stateid open_stateid; 522 struct nfs_lowner lock_owner; 523 unsigned char block : 1; 524 unsigned char reclaim : 1; 525 unsigned char new_lock : 1; 526 unsigned char new_lock_owner : 1; 527 }; 528 529 struct nfs_lock_res { 530 struct nfs4_sequence_res seq_res; 531 nfs4_stateid stateid; 532 struct nfs_seqid * lock_seqid; 533 struct nfs_seqid * open_seqid; 534 }; 535 536 struct nfs_locku_args { 537 struct nfs4_sequence_args seq_args; 538 struct nfs_fh * fh; 539 struct file_lock * fl; 540 struct nfs_seqid * seqid; 541 nfs4_stateid stateid; 542 }; 543 544 struct nfs_locku_res { 545 struct nfs4_sequence_res seq_res; 546 nfs4_stateid stateid; 547 struct nfs_seqid * seqid; 548 }; 549 550 struct nfs_lockt_args { 551 struct nfs4_sequence_args seq_args; 552 struct nfs_fh * fh; 553 struct file_lock * fl; 554 struct nfs_lowner lock_owner; 555 }; 556 557 struct nfs_lockt_res { 558 struct nfs4_sequence_res seq_res; 559 struct file_lock * denied; /* LOCK, LOCKT failed */ 560 }; 561 562 struct nfs_release_lockowner_args { 563 struct nfs4_sequence_args seq_args; 564 struct nfs_lowner lock_owner; 565 }; 566 567 struct nfs_release_lockowner_res { 568 struct nfs4_sequence_res seq_res; 569 }; 570 571 struct nfs4_delegreturnargs { 572 struct nfs4_sequence_args seq_args; 573 const struct nfs_fh *fhandle; 574 const nfs4_stateid *stateid; 575 const u32 * bitmask; 576 struct nfs4_layoutreturn_args *lr_args; 577 }; 578 579 struct nfs4_delegreturnres { 580 struct nfs4_sequence_res seq_res; 581 struct nfs_fattr * fattr; 582 struct nfs_server *server; 583 struct nfs4_layoutreturn_res *lr_res; 584 int lr_ret; 585 }; 586 587 /* 588 * Arguments to the write call. 589 */ 590 struct nfs_write_verifier { 591 char data[8]; 592 }; 593 594 struct nfs_writeverf { 595 struct nfs_write_verifier verifier; 596 enum nfs3_stable_how committed; 597 }; 598 599 /* 600 * Arguments shared by the read and write call. 601 */ 602 struct nfs_pgio_args { 603 struct nfs4_sequence_args seq_args; 604 struct nfs_fh * fh; 605 struct nfs_open_context *context; 606 struct nfs_lock_context *lock_context; 607 nfs4_stateid stateid; 608 __u64 offset; 609 __u32 count; 610 unsigned int pgbase; 611 struct page ** pages; 612 const u32 * bitmask; /* used by write */ 613 enum nfs3_stable_how stable; /* used by write */ 614 }; 615 616 struct nfs_pgio_res { 617 struct nfs4_sequence_res seq_res; 618 struct nfs_fattr * fattr; 619 __u32 count; 620 __u32 op_status; 621 int eof; /* used by read */ 622 struct nfs_writeverf * verf; /* used by write */ 623 const struct nfs_server *server; /* used by write */ 624 625 }; 626 627 /* 628 * Arguments to the commit call. 629 */ 630 struct nfs_commitargs { 631 struct nfs4_sequence_args seq_args; 632 struct nfs_fh *fh; 633 __u64 offset; 634 __u32 count; 635 const u32 *bitmask; 636 }; 637 638 struct nfs_commitres { 639 struct nfs4_sequence_res seq_res; 640 __u32 op_status; 641 struct nfs_fattr *fattr; 642 struct nfs_writeverf *verf; 643 const struct nfs_server *server; 644 }; 645 646 /* 647 * Common arguments to the unlink call 648 */ 649 struct nfs_removeargs { 650 struct nfs4_sequence_args seq_args; 651 const struct nfs_fh *fh; 652 struct qstr name; 653 }; 654 655 struct nfs_removeres { 656 struct nfs4_sequence_res seq_res; 657 struct nfs_server *server; 658 struct nfs_fattr *dir_attr; 659 struct nfs4_change_info cinfo; 660 }; 661 662 /* 663 * Common arguments to the rename call 664 */ 665 struct nfs_renameargs { 666 struct nfs4_sequence_args seq_args; 667 const struct nfs_fh *old_dir; 668 const struct nfs_fh *new_dir; 669 const struct qstr *old_name; 670 const struct qstr *new_name; 671 }; 672 673 struct nfs_renameres { 674 struct nfs4_sequence_res seq_res; 675 struct nfs_server *server; 676 struct nfs4_change_info old_cinfo; 677 struct nfs_fattr *old_fattr; 678 struct nfs4_change_info new_cinfo; 679 struct nfs_fattr *new_fattr; 680 }; 681 682 /* parsed sec= options */ 683 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 684 struct nfs_auth_info { 685 unsigned int flavor_len; 686 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 687 }; 688 689 /* 690 * Argument struct for decode_entry function 691 */ 692 struct nfs_entry { 693 __u64 ino; 694 __u64 cookie, 695 prev_cookie; 696 const char * name; 697 unsigned int len; 698 int eof; 699 struct nfs_fh * fh; 700 struct nfs_fattr * fattr; 701 struct nfs4_label *label; 702 unsigned char d_type; 703 struct nfs_server * server; 704 }; 705 706 /* 707 * The following types are for NFSv2 only. 708 */ 709 struct nfs_sattrargs { 710 struct nfs_fh * fh; 711 struct iattr * sattr; 712 }; 713 714 struct nfs_diropargs { 715 struct nfs_fh * fh; 716 const char * name; 717 unsigned int len; 718 }; 719 720 struct nfs_createargs { 721 struct nfs_fh * fh; 722 const char * name; 723 unsigned int len; 724 struct iattr * sattr; 725 }; 726 727 struct nfs_setattrargs { 728 struct nfs4_sequence_args seq_args; 729 struct nfs_fh * fh; 730 nfs4_stateid stateid; 731 struct iattr * iap; 732 const struct nfs_server * server; /* Needed for name mapping */ 733 const u32 * bitmask; 734 const struct nfs4_label *label; 735 }; 736 737 struct nfs_setaclargs { 738 struct nfs4_sequence_args seq_args; 739 struct nfs_fh * fh; 740 size_t acl_len; 741 struct page ** acl_pages; 742 }; 743 744 struct nfs_setaclres { 745 struct nfs4_sequence_res seq_res; 746 }; 747 748 struct nfs_getaclargs { 749 struct nfs4_sequence_args seq_args; 750 struct nfs_fh * fh; 751 size_t acl_len; 752 struct page ** acl_pages; 753 }; 754 755 /* getxattr ACL interface flags */ 756 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 757 struct nfs_getaclres { 758 struct nfs4_sequence_res seq_res; 759 size_t acl_len; 760 size_t acl_data_offset; 761 int acl_flags; 762 struct page * acl_scratch; 763 }; 764 765 struct nfs_setattrres { 766 struct nfs4_sequence_res seq_res; 767 struct nfs_fattr * fattr; 768 struct nfs4_label *label; 769 const struct nfs_server * server; 770 }; 771 772 struct nfs_linkargs { 773 struct nfs_fh * fromfh; 774 struct nfs_fh * tofh; 775 const char * toname; 776 unsigned int tolen; 777 }; 778 779 struct nfs_symlinkargs { 780 struct nfs_fh * fromfh; 781 const char * fromname; 782 unsigned int fromlen; 783 struct page ** pages; 784 unsigned int pathlen; 785 struct iattr * sattr; 786 }; 787 788 struct nfs_readdirargs { 789 struct nfs_fh * fh; 790 __u32 cookie; 791 unsigned int count; 792 struct page ** pages; 793 }; 794 795 struct nfs3_getaclargs { 796 struct nfs_fh * fh; 797 int mask; 798 struct page ** pages; 799 }; 800 801 struct nfs3_setaclargs { 802 struct inode * inode; 803 int mask; 804 struct posix_acl * acl_access; 805 struct posix_acl * acl_default; 806 size_t len; 807 unsigned int npages; 808 struct page ** pages; 809 }; 810 811 struct nfs_diropok { 812 struct nfs_fh * fh; 813 struct nfs_fattr * fattr; 814 }; 815 816 struct nfs_readlinkargs { 817 struct nfs_fh * fh; 818 unsigned int pgbase; 819 unsigned int pglen; 820 struct page ** pages; 821 }; 822 823 struct nfs3_sattrargs { 824 struct nfs_fh * fh; 825 struct iattr * sattr; 826 unsigned int guard; 827 struct timespec guardtime; 828 }; 829 830 struct nfs3_diropargs { 831 struct nfs_fh * fh; 832 const char * name; 833 unsigned int len; 834 }; 835 836 struct nfs3_accessargs { 837 struct nfs_fh * fh; 838 __u32 access; 839 }; 840 841 struct nfs3_createargs { 842 struct nfs_fh * fh; 843 const char * name; 844 unsigned int len; 845 struct iattr * sattr; 846 enum nfs3_createmode createmode; 847 __be32 verifier[2]; 848 }; 849 850 struct nfs3_mkdirargs { 851 struct nfs_fh * fh; 852 const char * name; 853 unsigned int len; 854 struct iattr * sattr; 855 }; 856 857 struct nfs3_symlinkargs { 858 struct nfs_fh * fromfh; 859 const char * fromname; 860 unsigned int fromlen; 861 struct page ** pages; 862 unsigned int pathlen; 863 struct iattr * sattr; 864 }; 865 866 struct nfs3_mknodargs { 867 struct nfs_fh * fh; 868 const char * name; 869 unsigned int len; 870 enum nfs3_ftype type; 871 struct iattr * sattr; 872 dev_t rdev; 873 }; 874 875 struct nfs3_linkargs { 876 struct nfs_fh * fromfh; 877 struct nfs_fh * tofh; 878 const char * toname; 879 unsigned int tolen; 880 }; 881 882 struct nfs3_readdirargs { 883 struct nfs_fh * fh; 884 __u64 cookie; 885 __be32 verf[2]; 886 bool plus; 887 unsigned int count; 888 struct page ** pages; 889 }; 890 891 struct nfs3_diropres { 892 struct nfs_fattr * dir_attr; 893 struct nfs_fh * fh; 894 struct nfs_fattr * fattr; 895 }; 896 897 struct nfs3_accessres { 898 struct nfs_fattr * fattr; 899 __u32 access; 900 }; 901 902 struct nfs3_readlinkargs { 903 struct nfs_fh * fh; 904 unsigned int pgbase; 905 unsigned int pglen; 906 struct page ** pages; 907 }; 908 909 struct nfs3_linkres { 910 struct nfs_fattr * dir_attr; 911 struct nfs_fattr * fattr; 912 }; 913 914 struct nfs3_readdirres { 915 struct nfs_fattr * dir_attr; 916 __be32 * verf; 917 bool plus; 918 }; 919 920 struct nfs3_getaclres { 921 struct nfs_fattr * fattr; 922 int mask; 923 unsigned int acl_access_count; 924 unsigned int acl_default_count; 925 struct posix_acl * acl_access; 926 struct posix_acl * acl_default; 927 }; 928 929 #if IS_ENABLED(CONFIG_NFS_V4) 930 931 typedef u64 clientid4; 932 933 struct nfs4_accessargs { 934 struct nfs4_sequence_args seq_args; 935 const struct nfs_fh * fh; 936 const u32 * bitmask; 937 u32 access; 938 }; 939 940 struct nfs4_accessres { 941 struct nfs4_sequence_res seq_res; 942 const struct nfs_server * server; 943 struct nfs_fattr * fattr; 944 u32 supported; 945 u32 access; 946 }; 947 948 struct nfs4_create_arg { 949 struct nfs4_sequence_args seq_args; 950 u32 ftype; 951 union { 952 struct { 953 struct page ** pages; 954 unsigned int len; 955 } symlink; /* NF4LNK */ 956 struct { 957 u32 specdata1; 958 u32 specdata2; 959 } device; /* NF4BLK, NF4CHR */ 960 } u; 961 const struct qstr * name; 962 const struct nfs_server * server; 963 const struct iattr * attrs; 964 const struct nfs_fh * dir_fh; 965 const u32 * bitmask; 966 const struct nfs4_label *label; 967 umode_t umask; 968 }; 969 970 struct nfs4_create_res { 971 struct nfs4_sequence_res seq_res; 972 const struct nfs_server * server; 973 struct nfs_fh * fh; 974 struct nfs_fattr * fattr; 975 struct nfs4_label *label; 976 struct nfs4_change_info dir_cinfo; 977 }; 978 979 struct nfs4_fsinfo_arg { 980 struct nfs4_sequence_args seq_args; 981 const struct nfs_fh * fh; 982 const u32 * bitmask; 983 }; 984 985 struct nfs4_fsinfo_res { 986 struct nfs4_sequence_res seq_res; 987 struct nfs_fsinfo *fsinfo; 988 }; 989 990 struct nfs4_getattr_arg { 991 struct nfs4_sequence_args seq_args; 992 const struct nfs_fh * fh; 993 const u32 * bitmask; 994 }; 995 996 struct nfs4_getattr_res { 997 struct nfs4_sequence_res seq_res; 998 const struct nfs_server * server; 999 struct nfs_fattr * fattr; 1000 struct nfs4_label *label; 1001 }; 1002 1003 struct nfs4_link_arg { 1004 struct nfs4_sequence_args seq_args; 1005 const struct nfs_fh * fh; 1006 const struct nfs_fh * dir_fh; 1007 const struct qstr * name; 1008 const u32 * bitmask; 1009 }; 1010 1011 struct nfs4_link_res { 1012 struct nfs4_sequence_res seq_res; 1013 const struct nfs_server * server; 1014 struct nfs_fattr * fattr; 1015 struct nfs4_label *label; 1016 struct nfs4_change_info cinfo; 1017 struct nfs_fattr * dir_attr; 1018 }; 1019 1020 struct nfs4_lookup_arg { 1021 struct nfs4_sequence_args seq_args; 1022 const struct nfs_fh * dir_fh; 1023 const struct qstr * name; 1024 const u32 * bitmask; 1025 }; 1026 1027 struct nfs4_lookup_res { 1028 struct nfs4_sequence_res seq_res; 1029 const struct nfs_server * server; 1030 struct nfs_fattr * fattr; 1031 struct nfs_fh * fh; 1032 struct nfs4_label *label; 1033 }; 1034 1035 struct nfs4_lookupp_arg { 1036 struct nfs4_sequence_args seq_args; 1037 const struct nfs_fh *fh; 1038 const u32 *bitmask; 1039 }; 1040 1041 struct nfs4_lookupp_res { 1042 struct nfs4_sequence_res seq_res; 1043 const struct nfs_server *server; 1044 struct nfs_fattr *fattr; 1045 struct nfs_fh *fh; 1046 struct nfs4_label *label; 1047 }; 1048 1049 struct nfs4_lookup_root_arg { 1050 struct nfs4_sequence_args seq_args; 1051 const u32 * bitmask; 1052 }; 1053 1054 struct nfs4_pathconf_arg { 1055 struct nfs4_sequence_args seq_args; 1056 const struct nfs_fh * fh; 1057 const u32 * bitmask; 1058 }; 1059 1060 struct nfs4_pathconf_res { 1061 struct nfs4_sequence_res seq_res; 1062 struct nfs_pathconf *pathconf; 1063 }; 1064 1065 struct nfs4_readdir_arg { 1066 struct nfs4_sequence_args seq_args; 1067 const struct nfs_fh * fh; 1068 u64 cookie; 1069 nfs4_verifier verifier; 1070 u32 count; 1071 struct page ** pages; /* zero-copy data */ 1072 unsigned int pgbase; /* zero-copy data */ 1073 const u32 * bitmask; 1074 bool plus; 1075 }; 1076 1077 struct nfs4_readdir_res { 1078 struct nfs4_sequence_res seq_res; 1079 nfs4_verifier verifier; 1080 unsigned int pgbase; 1081 }; 1082 1083 struct nfs4_readlink { 1084 struct nfs4_sequence_args seq_args; 1085 const struct nfs_fh * fh; 1086 unsigned int pgbase; 1087 unsigned int pglen; /* zero-copy data */ 1088 struct page ** pages; /* zero-copy data */ 1089 }; 1090 1091 struct nfs4_readlink_res { 1092 struct nfs4_sequence_res seq_res; 1093 }; 1094 1095 struct nfs4_setclientid { 1096 const nfs4_verifier * sc_verifier; 1097 u32 sc_prog; 1098 unsigned int sc_netid_len; 1099 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1100 unsigned int sc_uaddr_len; 1101 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1102 struct nfs_client *sc_clnt; 1103 struct rpc_cred *sc_cred; 1104 }; 1105 1106 struct nfs4_setclientid_res { 1107 u64 clientid; 1108 nfs4_verifier confirm; 1109 }; 1110 1111 struct nfs4_statfs_arg { 1112 struct nfs4_sequence_args seq_args; 1113 const struct nfs_fh * fh; 1114 const u32 * bitmask; 1115 }; 1116 1117 struct nfs4_statfs_res { 1118 struct nfs4_sequence_res seq_res; 1119 struct nfs_fsstat *fsstat; 1120 }; 1121 1122 struct nfs4_server_caps_arg { 1123 struct nfs4_sequence_args seq_args; 1124 struct nfs_fh *fhandle; 1125 const u32 * bitmask; 1126 }; 1127 1128 struct nfs4_server_caps_res { 1129 struct nfs4_sequence_res seq_res; 1130 u32 attr_bitmask[3]; 1131 u32 exclcreat_bitmask[3]; 1132 u32 acl_bitmask; 1133 u32 has_links; 1134 u32 has_symlinks; 1135 u32 fh_expire_type; 1136 }; 1137 1138 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1139 struct nfs4_pathname { 1140 unsigned int ncomponents; 1141 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1142 }; 1143 1144 #define NFS4_FS_LOCATION_MAXSERVERS 10 1145 struct nfs4_fs_location { 1146 unsigned int nservers; 1147 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1148 struct nfs4_pathname rootpath; 1149 }; 1150 1151 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1152 struct nfs4_fs_locations { 1153 struct nfs_fattr fattr; 1154 const struct nfs_server *server; 1155 struct nfs4_pathname fs_path; 1156 int nlocations; 1157 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1158 }; 1159 1160 struct nfs4_fs_locations_arg { 1161 struct nfs4_sequence_args seq_args; 1162 const struct nfs_fh *dir_fh; 1163 const struct nfs_fh *fh; 1164 const struct qstr *name; 1165 struct page *page; 1166 const u32 *bitmask; 1167 clientid4 clientid; 1168 unsigned char migration:1, renew:1; 1169 }; 1170 1171 struct nfs4_fs_locations_res { 1172 struct nfs4_sequence_res seq_res; 1173 struct nfs4_fs_locations *fs_locations; 1174 unsigned char migration:1, renew:1; 1175 }; 1176 1177 struct nfs4_secinfo4 { 1178 u32 flavor; 1179 struct rpcsec_gss_info flavor_info; 1180 }; 1181 1182 struct nfs4_secinfo_flavors { 1183 unsigned int num_flavors; 1184 struct nfs4_secinfo4 flavors[0]; 1185 }; 1186 1187 struct nfs4_secinfo_arg { 1188 struct nfs4_sequence_args seq_args; 1189 const struct nfs_fh *dir_fh; 1190 const struct qstr *name; 1191 }; 1192 1193 struct nfs4_secinfo_res { 1194 struct nfs4_sequence_res seq_res; 1195 struct nfs4_secinfo_flavors *flavors; 1196 }; 1197 1198 struct nfs4_fsid_present_arg { 1199 struct nfs4_sequence_args seq_args; 1200 const struct nfs_fh *fh; 1201 clientid4 clientid; 1202 unsigned char renew:1; 1203 }; 1204 1205 struct nfs4_fsid_present_res { 1206 struct nfs4_sequence_res seq_res; 1207 struct nfs_fh *fh; 1208 unsigned char renew:1; 1209 }; 1210 1211 #endif /* CONFIG_NFS_V4 */ 1212 1213 struct nfstime4 { 1214 u64 seconds; 1215 u32 nseconds; 1216 }; 1217 1218 #ifdef CONFIG_NFS_V4_1 1219 1220 struct pnfs_commit_bucket { 1221 struct list_head written; 1222 struct list_head committing; 1223 struct pnfs_layout_segment *wlseg; 1224 struct pnfs_layout_segment *clseg; 1225 struct nfs_writeverf direct_verf; 1226 }; 1227 1228 struct pnfs_ds_commit_info { 1229 int nwritten; 1230 int ncommitting; 1231 int nbuckets; 1232 struct pnfs_commit_bucket *buckets; 1233 }; 1234 1235 struct nfs41_state_protection { 1236 u32 how; 1237 struct nfs4_op_map enforce; 1238 struct nfs4_op_map allow; 1239 }; 1240 1241 struct nfs41_exchange_id_args { 1242 struct nfs_client *client; 1243 nfs4_verifier verifier; 1244 u32 flags; 1245 struct nfs41_state_protection state_protect; 1246 }; 1247 1248 struct nfs41_server_owner { 1249 uint64_t minor_id; 1250 uint32_t major_id_sz; 1251 char major_id[NFS4_OPAQUE_LIMIT]; 1252 }; 1253 1254 struct nfs41_server_scope { 1255 uint32_t server_scope_sz; 1256 char server_scope[NFS4_OPAQUE_LIMIT]; 1257 }; 1258 1259 struct nfs41_impl_id { 1260 char domain[NFS4_OPAQUE_LIMIT + 1]; 1261 char name[NFS4_OPAQUE_LIMIT + 1]; 1262 struct nfstime4 date; 1263 }; 1264 1265 struct nfs41_bind_conn_to_session_args { 1266 struct nfs_client *client; 1267 struct nfs4_sessionid sessionid; 1268 u32 dir; 1269 bool use_conn_in_rdma_mode; 1270 }; 1271 1272 struct nfs41_bind_conn_to_session_res { 1273 struct nfs4_sessionid sessionid; 1274 u32 dir; 1275 bool use_conn_in_rdma_mode; 1276 }; 1277 1278 struct nfs41_exchange_id_res { 1279 u64 clientid; 1280 u32 seqid; 1281 u32 flags; 1282 struct nfs41_server_owner *server_owner; 1283 struct nfs41_server_scope *server_scope; 1284 struct nfs41_impl_id *impl_id; 1285 struct nfs41_state_protection state_protect; 1286 }; 1287 1288 struct nfs41_create_session_args { 1289 struct nfs_client *client; 1290 u64 clientid; 1291 uint32_t seqid; 1292 uint32_t flags; 1293 uint32_t cb_program; 1294 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1295 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1296 }; 1297 1298 struct nfs41_create_session_res { 1299 struct nfs4_sessionid sessionid; 1300 uint32_t seqid; 1301 uint32_t flags; 1302 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1303 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1304 }; 1305 1306 struct nfs41_reclaim_complete_args { 1307 struct nfs4_sequence_args seq_args; 1308 /* In the future extend to include curr_fh for use with migration */ 1309 unsigned char one_fs:1; 1310 }; 1311 1312 struct nfs41_reclaim_complete_res { 1313 struct nfs4_sequence_res seq_res; 1314 }; 1315 1316 #define SECINFO_STYLE_CURRENT_FH 0 1317 #define SECINFO_STYLE_PARENT 1 1318 struct nfs41_secinfo_no_name_args { 1319 struct nfs4_sequence_args seq_args; 1320 int style; 1321 }; 1322 1323 struct nfs41_test_stateid_args { 1324 struct nfs4_sequence_args seq_args; 1325 nfs4_stateid *stateid; 1326 }; 1327 1328 struct nfs41_test_stateid_res { 1329 struct nfs4_sequence_res seq_res; 1330 unsigned int status; 1331 }; 1332 1333 struct nfs41_free_stateid_args { 1334 struct nfs4_sequence_args seq_args; 1335 nfs4_stateid stateid; 1336 }; 1337 1338 struct nfs41_free_stateid_res { 1339 struct nfs4_sequence_res seq_res; 1340 unsigned int status; 1341 }; 1342 1343 static inline void 1344 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1345 { 1346 kfree(cinfo->buckets); 1347 } 1348 1349 #else 1350 1351 struct pnfs_ds_commit_info { 1352 }; 1353 1354 static inline void 1355 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1356 { 1357 } 1358 1359 #endif /* CONFIG_NFS_V4_1 */ 1360 1361 #ifdef CONFIG_NFS_V4_2 1362 struct nfs42_falloc_args { 1363 struct nfs4_sequence_args seq_args; 1364 1365 struct nfs_fh *falloc_fh; 1366 nfs4_stateid falloc_stateid; 1367 u64 falloc_offset; 1368 u64 falloc_length; 1369 const u32 *falloc_bitmask; 1370 }; 1371 1372 struct nfs42_falloc_res { 1373 struct nfs4_sequence_res seq_res; 1374 unsigned int status; 1375 1376 struct nfs_fattr *falloc_fattr; 1377 const struct nfs_server *falloc_server; 1378 }; 1379 1380 struct nfs42_copy_args { 1381 struct nfs4_sequence_args seq_args; 1382 1383 struct nfs_fh *src_fh; 1384 nfs4_stateid src_stateid; 1385 u64 src_pos; 1386 1387 struct nfs_fh *dst_fh; 1388 nfs4_stateid dst_stateid; 1389 u64 dst_pos; 1390 1391 u64 count; 1392 }; 1393 1394 struct nfs42_write_res { 1395 u64 count; 1396 struct nfs_writeverf verifier; 1397 }; 1398 1399 struct nfs42_copy_res { 1400 struct nfs4_sequence_res seq_res; 1401 struct nfs42_write_res write_res; 1402 bool consecutive; 1403 bool synchronous; 1404 struct nfs_commitres commit_res; 1405 }; 1406 1407 struct nfs42_seek_args { 1408 struct nfs4_sequence_args seq_args; 1409 1410 struct nfs_fh *sa_fh; 1411 nfs4_stateid sa_stateid; 1412 u64 sa_offset; 1413 u32 sa_what; 1414 }; 1415 1416 struct nfs42_seek_res { 1417 struct nfs4_sequence_res seq_res; 1418 unsigned int status; 1419 1420 u32 sr_eof; 1421 u64 sr_offset; 1422 }; 1423 #endif 1424 1425 struct nfs_page; 1426 1427 #define NFS_PAGEVEC_SIZE (8U) 1428 1429 struct nfs_page_array { 1430 struct page **pagevec; 1431 unsigned int npages; /* Max length of pagevec */ 1432 struct page *page_array[NFS_PAGEVEC_SIZE]; 1433 }; 1434 1435 /* used as flag bits in nfs_pgio_header */ 1436 enum { 1437 NFS_IOHDR_ERROR = 0, 1438 NFS_IOHDR_EOF, 1439 NFS_IOHDR_REDO, 1440 NFS_IOHDR_STAT, 1441 NFS_IOHDR_RESEND_PNFS, 1442 NFS_IOHDR_RESEND_MDS, 1443 }; 1444 1445 struct nfs_io_completion; 1446 struct nfs_pgio_header { 1447 struct inode *inode; 1448 struct rpc_cred *cred; 1449 struct list_head pages; 1450 struct nfs_page *req; 1451 struct nfs_writeverf verf; /* Used for writes */ 1452 fmode_t rw_mode; 1453 struct pnfs_layout_segment *lseg; 1454 loff_t io_start; 1455 const struct rpc_call_ops *mds_ops; 1456 void (*release) (struct nfs_pgio_header *hdr); 1457 const struct nfs_pgio_completion_ops *completion_ops; 1458 const struct nfs_rw_ops *rw_ops; 1459 struct nfs_io_completion *io_completion; 1460 struct nfs_direct_req *dreq; 1461 spinlock_t lock; 1462 /* fields protected by lock */ 1463 int pnfs_error; 1464 int error; /* merge with pnfs_error */ 1465 unsigned long good_bytes; /* boundary of good data */ 1466 unsigned long flags; 1467 1468 /* 1469 * rpc data 1470 */ 1471 struct rpc_task task; 1472 struct nfs_fattr fattr; 1473 struct nfs_pgio_args args; /* argument struct */ 1474 struct nfs_pgio_res res; /* result struct */ 1475 unsigned long timestamp; /* For lease renewal */ 1476 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1477 __u64 mds_offset; /* Filelayout dense stripe */ 1478 struct nfs_page_array page_array; 1479 struct nfs_client *ds_clp; /* pNFS data server */ 1480 int ds_commit_idx; /* ds index if ds_clp is set */ 1481 int pgio_mirror_idx;/* mirror index in pgio layer */ 1482 }; 1483 1484 struct nfs_mds_commit_info { 1485 atomic_t rpcs_out; 1486 atomic_long_t ncommit; 1487 struct list_head list; 1488 }; 1489 1490 struct nfs_commit_info; 1491 struct nfs_commit_data; 1492 struct nfs_inode; 1493 struct nfs_commit_completion_ops { 1494 void (*completion) (struct nfs_commit_data *data); 1495 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1496 }; 1497 1498 struct nfs_commit_info { 1499 struct inode *inode; /* Needed for inode->i_lock */ 1500 struct nfs_mds_commit_info *mds; 1501 struct pnfs_ds_commit_info *ds; 1502 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1503 const struct nfs_commit_completion_ops *completion_ops; 1504 }; 1505 1506 struct nfs_commit_data { 1507 struct rpc_task task; 1508 struct inode *inode; 1509 struct rpc_cred *cred; 1510 struct nfs_fattr fattr; 1511 struct nfs_writeverf verf; 1512 struct list_head pages; /* Coalesced requests we wish to flush */ 1513 struct list_head list; /* lists of struct nfs_write_data */ 1514 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1515 struct nfs_commitargs args; /* argument struct */ 1516 struct nfs_commitres res; /* result struct */ 1517 struct nfs_open_context *context; 1518 struct pnfs_layout_segment *lseg; 1519 struct nfs_client *ds_clp; /* pNFS data server */ 1520 int ds_commit_index; 1521 loff_t lwb; 1522 const struct rpc_call_ops *mds_ops; 1523 const struct nfs_commit_completion_ops *completion_ops; 1524 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1525 unsigned long flags; 1526 }; 1527 1528 struct nfs_pgio_completion_ops { 1529 void (*error_cleanup)(struct list_head *head); 1530 void (*init_hdr)(struct nfs_pgio_header *hdr); 1531 void (*completion)(struct nfs_pgio_header *hdr); 1532 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1533 }; 1534 1535 struct nfs_unlinkdata { 1536 struct nfs_removeargs args; 1537 struct nfs_removeres res; 1538 struct dentry *dentry; 1539 wait_queue_head_t wq; 1540 struct rpc_cred *cred; 1541 struct nfs_fattr dir_attr; 1542 long timeout; 1543 }; 1544 1545 struct nfs_renamedata { 1546 struct nfs_renameargs args; 1547 struct nfs_renameres res; 1548 struct rpc_cred *cred; 1549 struct inode *old_dir; 1550 struct dentry *old_dentry; 1551 struct nfs_fattr old_fattr; 1552 struct inode *new_dir; 1553 struct dentry *new_dentry; 1554 struct nfs_fattr new_fattr; 1555 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1556 long timeout; 1557 bool cancelled; 1558 }; 1559 1560 struct nfs_access_entry; 1561 struct nfs_client; 1562 struct rpc_timeout; 1563 struct nfs_subversion; 1564 struct nfs_mount_info; 1565 struct nfs_client_initdata; 1566 struct nfs_pageio_descriptor; 1567 1568 /* 1569 * RPC procedure vector for NFSv2/NFSv3 demuxing 1570 */ 1571 struct nfs_rpc_ops { 1572 u32 version; /* Protocol version */ 1573 const struct dentry_operations *dentry_ops; 1574 const struct inode_operations *dir_inode_ops; 1575 const struct inode_operations *file_inode_ops; 1576 const struct file_operations *file_ops; 1577 const struct nlmclnt_operations *nlmclnt_ops; 1578 1579 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1580 struct nfs_fsinfo *); 1581 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *, 1582 struct nfs_fh *, struct nfs_fattr *); 1583 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *, 1584 struct nfs_subversion *); 1585 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1586 struct nfs_fattr *, struct nfs4_label *, 1587 struct inode *); 1588 int (*setattr) (struct dentry *, struct nfs_fattr *, 1589 struct iattr *); 1590 int (*lookup) (struct inode *, const struct qstr *, 1591 struct nfs_fh *, struct nfs_fattr *, 1592 struct nfs4_label *); 1593 int (*lookupp) (struct inode *, struct nfs_fh *, 1594 struct nfs_fattr *, struct nfs4_label *); 1595 int (*access) (struct inode *, struct nfs_access_entry *); 1596 int (*readlink)(struct inode *, struct page *, unsigned int, 1597 unsigned int); 1598 int (*create) (struct inode *, struct dentry *, 1599 struct iattr *, int); 1600 int (*remove) (struct inode *, struct dentry *); 1601 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1602 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1603 int (*unlink_done) (struct rpc_task *, struct inode *); 1604 void (*rename_setup) (struct rpc_message *msg, 1605 struct dentry *old_dentry, 1606 struct dentry *new_dentry); 1607 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1608 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1609 int (*link) (struct inode *, struct inode *, const struct qstr *); 1610 int (*symlink) (struct inode *, struct dentry *, struct page *, 1611 unsigned int, struct iattr *); 1612 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1613 int (*rmdir) (struct inode *, const struct qstr *); 1614 int (*readdir) (struct dentry *, struct rpc_cred *, 1615 u64, struct page **, unsigned int, bool); 1616 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1617 dev_t); 1618 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1619 struct nfs_fsstat *); 1620 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1621 struct nfs_fsinfo *); 1622 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1623 struct nfs_pathconf *); 1624 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1625 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1626 int (*pgio_rpc_prepare)(struct rpc_task *, 1627 struct nfs_pgio_header *); 1628 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1629 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1630 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1631 struct rpc_clnt **); 1632 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1633 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1634 struct rpc_clnt **); 1635 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1636 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1637 int (*lock)(struct file *, int, struct file_lock *); 1638 int (*lock_check_bounds)(const struct file_lock *); 1639 void (*clear_acl_cache)(struct inode *); 1640 void (*close_context)(struct nfs_open_context *ctx, int); 1641 struct inode * (*open_context) (struct inode *dir, 1642 struct nfs_open_context *ctx, 1643 int open_flags, 1644 struct iattr *iattr, 1645 int *); 1646 int (*have_delegation)(struct inode *, fmode_t); 1647 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1648 struct nfs_client *(*init_client) (struct nfs_client *, 1649 const struct nfs_client_initdata *); 1650 void (*free_client) (struct nfs_client *); 1651 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *); 1652 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1653 struct nfs_fattr *, rpc_authflavor_t); 1654 }; 1655 1656 /* 1657 * NFS_CALL(getattr, inode, (fattr)); 1658 * into 1659 * NFS_PROTO(inode)->getattr(fattr); 1660 */ 1661 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1662 1663 /* 1664 * Function vectors etc. for the NFS client 1665 */ 1666 extern const struct nfs_rpc_ops nfs_v2_clientops; 1667 extern const struct nfs_rpc_ops nfs_v3_clientops; 1668 extern const struct nfs_rpc_ops nfs_v4_clientops; 1669 extern const struct rpc_version nfs_version2; 1670 extern const struct rpc_version nfs_version3; 1671 extern const struct rpc_version nfs_version4; 1672 1673 extern const struct rpc_version nfsacl_version3; 1674 extern const struct rpc_program nfsacl_program; 1675 1676 #endif 1677