nfs_xdr.h revision 573c4e1ef53a6b891b73cc2257e1604da754a2e4
1#ifndef _LINUX_NFS_XDR_H 2#define _LINUX_NFS_XDR_H 3 4#include <linux/nfsacl.h> 5#include <linux/nfs3.h> 6 7/* 8 * To change the maximum rsize and wsize supported by the NFS client, adjust 9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can 10 * support a megabyte or more. The default is left at 4096 bytes, which is 11 * reasonable for NFS over UDP. 12 */ 13#define NFS_MAX_FILE_IO_SIZE (1048576U) 14#define NFS_DEF_FILE_IO_SIZE (4096U) 15#define NFS_MIN_FILE_IO_SIZE (1024U) 16 17struct nfs_fsid { 18 uint64_t major; 19 uint64_t minor; 20}; 21 22/* 23 * Helper for checking equality between 2 fsids. 24 */ 25static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 26{ 27 return a->major == b->major && a->minor == b->minor; 28} 29 30struct nfs_fattr { 31 unsigned int valid; /* which fields are valid */ 32 umode_t mode; 33 __u32 nlink; 34 __u32 uid; 35 __u32 gid; 36 dev_t rdev; 37 __u64 size; 38 union { 39 struct { 40 __u32 blocksize; 41 __u32 blocks; 42 } nfs2; 43 struct { 44 __u64 used; 45 } nfs3; 46 } du; 47 struct nfs_fsid fsid; 48 __u64 fileid; 49 struct timespec atime; 50 struct timespec mtime; 51 struct timespec ctime; 52 __u64 change_attr; /* NFSv4 change attribute */ 53 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 54 __u64 pre_size; /* pre_op_attr.size */ 55 struct timespec pre_mtime; /* pre_op_attr.mtime */ 56 struct timespec pre_ctime; /* pre_op_attr.ctime */ 57 unsigned long time_start; 58 unsigned long gencount; 59}; 60 61#define NFS_ATTR_FATTR_TYPE (1U << 0) 62#define NFS_ATTR_FATTR_MODE (1U << 1) 63#define NFS_ATTR_FATTR_NLINK (1U << 2) 64#define NFS_ATTR_FATTR_OWNER (1U << 3) 65#define NFS_ATTR_FATTR_GROUP (1U << 4) 66#define NFS_ATTR_FATTR_RDEV (1U << 5) 67#define NFS_ATTR_FATTR_SIZE (1U << 6) 68#define NFS_ATTR_FATTR_PRESIZE (1U << 7) 69#define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 70#define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 71#define NFS_ATTR_FATTR_FSID (1U << 10) 72#define NFS_ATTR_FATTR_FILEID (1U << 11) 73#define NFS_ATTR_FATTR_ATIME (1U << 12) 74#define NFS_ATTR_FATTR_MTIME (1U << 13) 75#define NFS_ATTR_FATTR_CTIME (1U << 14) 76#define NFS_ATTR_FATTR_PREMTIME (1U << 15) 77#define NFS_ATTR_FATTR_PRECTIME (1U << 16) 78#define NFS_ATTR_FATTR_CHANGE (1U << 17) 79#define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 80#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */ 81 82#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 83 | NFS_ATTR_FATTR_MODE \ 84 | NFS_ATTR_FATTR_NLINK \ 85 | NFS_ATTR_FATTR_OWNER \ 86 | NFS_ATTR_FATTR_GROUP \ 87 | NFS_ATTR_FATTR_RDEV \ 88 | NFS_ATTR_FATTR_SIZE \ 89 | NFS_ATTR_FATTR_FSID \ 90 | NFS_ATTR_FATTR_FILEID \ 91 | NFS_ATTR_FATTR_ATIME \ 92 | NFS_ATTR_FATTR_MTIME \ 93 | NFS_ATTR_FATTR_CTIME) 94#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 95 | NFS_ATTR_FATTR_BLOCKS_USED) 96#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 97 | NFS_ATTR_FATTR_SPACE_USED) 98#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 99 | NFS_ATTR_FATTR_SPACE_USED \ 100 | NFS_ATTR_FATTR_CHANGE) 101 102/* 103 * Info on the file system 104 */ 105struct nfs_fsinfo { 106 struct nfs_fattr *fattr; /* Post-op attributes */ 107 __u32 rtmax; /* max. read transfer size */ 108 __u32 rtpref; /* pref. read transfer size */ 109 __u32 rtmult; /* reads should be multiple of this */ 110 __u32 wtmax; /* max. write transfer size */ 111 __u32 wtpref; /* pref. write transfer size */ 112 __u32 wtmult; /* writes should be multiple of this */ 113 __u32 dtpref; /* pref. readdir transfer size */ 114 __u64 maxfilesize; 115 struct timespec time_delta; /* server time granularity */ 116 __u32 lease_time; /* in seconds */ 117 __u32 layouttype; /* supported pnfs layout driver */ 118}; 119 120struct nfs_fsstat { 121 struct nfs_fattr *fattr; /* Post-op attributes */ 122 __u64 tbytes; /* total size in bytes */ 123 __u64 fbytes; /* # of free bytes */ 124 __u64 abytes; /* # of bytes available to user */ 125 __u64 tfiles; /* # of files */ 126 __u64 ffiles; /* # of free files */ 127 __u64 afiles; /* # of files available to user */ 128}; 129 130struct nfs2_fsstat { 131 __u32 tsize; /* Server transfer size */ 132 __u32 bsize; /* Filesystem block size */ 133 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 134 __u32 bfree; /* No. of free "bsize" blocks */ 135 __u32 bavail; /* No. of available "bsize" blocks */ 136}; 137 138struct nfs_pathconf { 139 struct nfs_fattr *fattr; /* Post-op attributes */ 140 __u32 max_link; /* max # of hard links */ 141 __u32 max_namelen; /* max name length */ 142}; 143 144struct nfs4_change_info { 145 u32 atomic; 146 u64 before; 147 u64 after; 148}; 149 150struct nfs_seqid; 151 152/* nfs41 sessions channel attributes */ 153struct nfs4_channel_attrs { 154 u32 headerpadsz; 155 u32 max_rqst_sz; 156 u32 max_resp_sz; 157 u32 max_resp_sz_cached; 158 u32 max_ops; 159 u32 max_reqs; 160}; 161 162/* nfs41 sessions slot seqid */ 163struct nfs4_slot { 164 u32 seq_nr; 165}; 166 167struct nfs4_sequence_args { 168 struct nfs4_session *sa_session; 169 u8 sa_slotid; 170 u8 sa_cache_this; 171}; 172 173struct nfs4_sequence_res { 174 struct nfs4_session *sr_session; 175 struct nfs4_slot *sr_slot; /* slot used to send request */ 176 int sr_status; /* sequence operation status */ 177 unsigned long sr_renewal_time; 178 u32 sr_status_flags; 179}; 180 181struct nfs4_get_lease_time_args { 182 struct nfs4_sequence_args la_seq_args; 183}; 184 185struct nfs4_get_lease_time_res { 186 struct nfs_fsinfo *lr_fsinfo; 187 struct nfs4_sequence_res lr_seq_res; 188}; 189 190#define PNFS_LAYOUT_MAXSIZE 4096 191 192struct nfs4_layoutdriver_data { 193 __u32 len; 194 void *buf; 195}; 196 197struct pnfs_layout_range { 198 u32 iomode; 199 u64 offset; 200 u64 length; 201}; 202 203struct nfs4_layoutget_args { 204 __u32 type; 205 struct pnfs_layout_range range; 206 __u64 minlength; 207 __u32 maxcount; 208 struct inode *inode; 209 struct nfs_open_context *ctx; 210 struct nfs4_sequence_args seq_args; 211}; 212 213struct nfs4_layoutget_res { 214 __u32 return_on_close; 215 struct pnfs_layout_range range; 216 __u32 type; 217 nfs4_stateid stateid; 218 struct nfs4_layoutdriver_data layout; 219 struct nfs4_sequence_res seq_res; 220}; 221 222struct nfs4_layoutget { 223 struct nfs4_layoutget_args args; 224 struct nfs4_layoutget_res res; 225 struct pnfs_layout_segment **lsegpp; 226 int status; 227}; 228 229struct nfs4_getdeviceinfo_args { 230 struct pnfs_device *pdev; 231 struct nfs4_sequence_args seq_args; 232}; 233 234struct nfs4_getdeviceinfo_res { 235 struct pnfs_device *pdev; 236 struct nfs4_sequence_res seq_res; 237}; 238 239/* 240 * Arguments to the open call. 241 */ 242struct nfs_openargs { 243 const struct nfs_fh * fh; 244 struct nfs_seqid * seqid; 245 int open_flags; 246 fmode_t fmode; 247 __u64 clientid; 248 __u64 id; 249 union { 250 struct { 251 struct iattr * attrs; /* UNCHECKED, GUARDED */ 252 nfs4_verifier verifier; /* EXCLUSIVE */ 253 }; 254 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 255 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 256 } u; 257 const struct qstr * name; 258 const struct nfs_server *server; /* Needed for ID mapping */ 259 const u32 * bitmask; 260 __u32 claim; 261 struct nfs4_sequence_args seq_args; 262}; 263 264struct nfs_openres { 265 nfs4_stateid stateid; 266 struct nfs_fh fh; 267 struct nfs4_change_info cinfo; 268 __u32 rflags; 269 struct nfs_fattr * f_attr; 270 struct nfs_fattr * dir_attr; 271 struct nfs_seqid * seqid; 272 const struct nfs_server *server; 273 fmode_t delegation_type; 274 nfs4_stateid delegation; 275 __u32 do_recall; 276 __u64 maxsize; 277 __u32 attrset[NFS4_BITMAP_SIZE]; 278 struct nfs4_sequence_res seq_res; 279}; 280 281/* 282 * Arguments to the open_confirm call. 283 */ 284struct nfs_open_confirmargs { 285 const struct nfs_fh * fh; 286 nfs4_stateid * stateid; 287 struct nfs_seqid * seqid; 288}; 289 290struct nfs_open_confirmres { 291 nfs4_stateid stateid; 292 struct nfs_seqid * seqid; 293}; 294 295/* 296 * Arguments to the close call. 297 */ 298struct nfs_closeargs { 299 struct nfs_fh * fh; 300 nfs4_stateid * stateid; 301 struct nfs_seqid * seqid; 302 fmode_t fmode; 303 const u32 * bitmask; 304 struct nfs4_sequence_args seq_args; 305}; 306 307struct nfs_closeres { 308 nfs4_stateid stateid; 309 struct nfs_fattr * fattr; 310 struct nfs_seqid * seqid; 311 const struct nfs_server *server; 312 struct nfs4_sequence_res seq_res; 313}; 314/* 315 * * Arguments to the lock,lockt, and locku call. 316 * */ 317struct nfs_lowner { 318 __u64 clientid; 319 __u64 id; 320}; 321 322struct nfs_lock_args { 323 struct nfs_fh * fh; 324 struct file_lock * fl; 325 struct nfs_seqid * lock_seqid; 326 nfs4_stateid * lock_stateid; 327 struct nfs_seqid * open_seqid; 328 nfs4_stateid * open_stateid; 329 struct nfs_lowner lock_owner; 330 unsigned char block : 1; 331 unsigned char reclaim : 1; 332 unsigned char new_lock_owner : 1; 333 struct nfs4_sequence_args seq_args; 334}; 335 336struct nfs_lock_res { 337 nfs4_stateid stateid; 338 struct nfs_seqid * lock_seqid; 339 struct nfs_seqid * open_seqid; 340 struct nfs4_sequence_res seq_res; 341}; 342 343struct nfs_locku_args { 344 struct nfs_fh * fh; 345 struct file_lock * fl; 346 struct nfs_seqid * seqid; 347 nfs4_stateid * stateid; 348 struct nfs4_sequence_args seq_args; 349}; 350 351struct nfs_locku_res { 352 nfs4_stateid stateid; 353 struct nfs_seqid * seqid; 354 struct nfs4_sequence_res seq_res; 355}; 356 357struct nfs_lockt_args { 358 struct nfs_fh * fh; 359 struct file_lock * fl; 360 struct nfs_lowner lock_owner; 361 struct nfs4_sequence_args seq_args; 362}; 363 364struct nfs_lockt_res { 365 struct file_lock * denied; /* LOCK, LOCKT failed */ 366 struct nfs4_sequence_res seq_res; 367}; 368 369struct nfs_release_lockowner_args { 370 struct nfs_lowner lock_owner; 371}; 372 373struct nfs4_delegreturnargs { 374 const struct nfs_fh *fhandle; 375 const nfs4_stateid *stateid; 376 const u32 * bitmask; 377 struct nfs4_sequence_args seq_args; 378}; 379 380struct nfs4_delegreturnres { 381 struct nfs_fattr * fattr; 382 const struct nfs_server *server; 383 struct nfs4_sequence_res seq_res; 384}; 385 386/* 387 * Arguments to the read call. 388 */ 389struct nfs_readargs { 390 struct nfs_fh * fh; 391 struct nfs_open_context *context; 392 struct nfs_lock_context *lock_context; 393 __u64 offset; 394 __u32 count; 395 unsigned int pgbase; 396 struct page ** pages; 397 struct nfs4_sequence_args seq_args; 398}; 399 400struct nfs_readres { 401 struct nfs_fattr * fattr; 402 __u32 count; 403 int eof; 404 struct nfs4_sequence_res seq_res; 405}; 406 407/* 408 * Arguments to the write call. 409 */ 410struct nfs_writeargs { 411 struct nfs_fh * fh; 412 struct nfs_open_context *context; 413 struct nfs_lock_context *lock_context; 414 __u64 offset; 415 __u32 count; 416 enum nfs3_stable_how stable; 417 unsigned int pgbase; 418 struct page ** pages; 419 const u32 * bitmask; 420 struct nfs4_sequence_args seq_args; 421}; 422 423struct nfs_writeverf { 424 enum nfs3_stable_how committed; 425 __be32 verifier[2]; 426}; 427 428struct nfs_writeres { 429 struct nfs_fattr * fattr; 430 struct nfs_writeverf * verf; 431 __u32 count; 432 const struct nfs_server *server; 433 struct nfs4_sequence_res seq_res; 434}; 435 436/* 437 * Common arguments to the unlink call 438 */ 439struct nfs_removeargs { 440 const struct nfs_fh *fh; 441 struct qstr name; 442 const u32 * bitmask; 443 struct nfs4_sequence_args seq_args; 444}; 445 446struct nfs_removeres { 447 const struct nfs_server *server; 448 struct nfs_fattr *dir_attr; 449 struct nfs4_change_info cinfo; 450 struct nfs4_sequence_res seq_res; 451}; 452 453/* 454 * Common arguments to the rename call 455 */ 456struct nfs_renameargs { 457 const struct nfs_fh *old_dir; 458 const struct nfs_fh *new_dir; 459 const struct qstr *old_name; 460 const struct qstr *new_name; 461 const u32 *bitmask; 462 struct nfs4_sequence_args seq_args; 463}; 464 465struct nfs_renameres { 466 const struct nfs_server *server; 467 struct nfs4_change_info old_cinfo; 468 struct nfs_fattr *old_fattr; 469 struct nfs4_change_info new_cinfo; 470 struct nfs_fattr *new_fattr; 471 struct nfs4_sequence_res seq_res; 472}; 473 474/* 475 * Argument struct for decode_entry function 476 */ 477struct nfs_entry { 478 __u64 ino; 479 __u64 cookie, 480 prev_cookie; 481 const char * name; 482 unsigned int len; 483 int eof; 484 struct nfs_fh * fh; 485 struct nfs_fattr * fattr; 486 unsigned char d_type; 487 struct nfs_server * server; 488}; 489 490/* 491 * The following types are for NFSv2 only. 492 */ 493struct nfs_sattrargs { 494 struct nfs_fh * fh; 495 struct iattr * sattr; 496}; 497 498struct nfs_diropargs { 499 struct nfs_fh * fh; 500 const char * name; 501 unsigned int len; 502}; 503 504struct nfs_createargs { 505 struct nfs_fh * fh; 506 const char * name; 507 unsigned int len; 508 struct iattr * sattr; 509}; 510 511struct nfs_setattrargs { 512 struct nfs_fh * fh; 513 nfs4_stateid stateid; 514 struct iattr * iap; 515 const struct nfs_server * server; /* Needed for name mapping */ 516 const u32 * bitmask; 517 struct nfs4_sequence_args seq_args; 518}; 519 520struct nfs_setaclargs { 521 struct nfs_fh * fh; 522 size_t acl_len; 523 unsigned int acl_pgbase; 524 struct page ** acl_pages; 525 struct nfs4_sequence_args seq_args; 526}; 527 528struct nfs_setaclres { 529 struct nfs4_sequence_res seq_res; 530}; 531 532struct nfs_getaclargs { 533 struct nfs_fh * fh; 534 size_t acl_len; 535 unsigned int acl_pgbase; 536 struct page ** acl_pages; 537 struct nfs4_sequence_args seq_args; 538}; 539 540struct nfs_getaclres { 541 size_t acl_len; 542 struct nfs4_sequence_res seq_res; 543}; 544 545struct nfs_setattrres { 546 struct nfs_fattr * fattr; 547 const struct nfs_server * server; 548 struct nfs4_sequence_res seq_res; 549}; 550 551struct nfs_linkargs { 552 struct nfs_fh * fromfh; 553 struct nfs_fh * tofh; 554 const char * toname; 555 unsigned int tolen; 556}; 557 558struct nfs_symlinkargs { 559 struct nfs_fh * fromfh; 560 const char * fromname; 561 unsigned int fromlen; 562 struct page ** pages; 563 unsigned int pathlen; 564 struct iattr * sattr; 565}; 566 567struct nfs_readdirargs { 568 struct nfs_fh * fh; 569 __u32 cookie; 570 unsigned int count; 571 struct page ** pages; 572}; 573 574struct nfs3_getaclargs { 575 struct nfs_fh * fh; 576 int mask; 577 struct page ** pages; 578}; 579 580struct nfs3_setaclargs { 581 struct inode * inode; 582 int mask; 583 struct posix_acl * acl_access; 584 struct posix_acl * acl_default; 585 size_t len; 586 unsigned int npages; 587 struct page ** pages; 588}; 589 590struct nfs_diropok { 591 struct nfs_fh * fh; 592 struct nfs_fattr * fattr; 593}; 594 595struct nfs_readlinkargs { 596 struct nfs_fh * fh; 597 unsigned int pgbase; 598 unsigned int pglen; 599 struct page ** pages; 600}; 601 602struct nfs3_sattrargs { 603 struct nfs_fh * fh; 604 struct iattr * sattr; 605 unsigned int guard; 606 struct timespec guardtime; 607}; 608 609struct nfs3_diropargs { 610 struct nfs_fh * fh; 611 const char * name; 612 unsigned int len; 613}; 614 615struct nfs3_accessargs { 616 struct nfs_fh * fh; 617 __u32 access; 618}; 619 620struct nfs3_createargs { 621 struct nfs_fh * fh; 622 const char * name; 623 unsigned int len; 624 struct iattr * sattr; 625 enum nfs3_createmode createmode; 626 __be32 verifier[2]; 627}; 628 629struct nfs3_mkdirargs { 630 struct nfs_fh * fh; 631 const char * name; 632 unsigned int len; 633 struct iattr * sattr; 634}; 635 636struct nfs3_symlinkargs { 637 struct nfs_fh * fromfh; 638 const char * fromname; 639 unsigned int fromlen; 640 struct page ** pages; 641 unsigned int pathlen; 642 struct iattr * sattr; 643}; 644 645struct nfs3_mknodargs { 646 struct nfs_fh * fh; 647 const char * name; 648 unsigned int len; 649 enum nfs3_ftype type; 650 struct iattr * sattr; 651 dev_t rdev; 652}; 653 654struct nfs3_linkargs { 655 struct nfs_fh * fromfh; 656 struct nfs_fh * tofh; 657 const char * toname; 658 unsigned int tolen; 659}; 660 661struct nfs3_readdirargs { 662 struct nfs_fh * fh; 663 __u64 cookie; 664 __be32 verf[2]; 665 int plus; 666 unsigned int count; 667 struct page ** pages; 668}; 669 670struct nfs3_diropres { 671 struct nfs_fattr * dir_attr; 672 struct nfs_fh * fh; 673 struct nfs_fattr * fattr; 674}; 675 676struct nfs3_accessres { 677 struct nfs_fattr * fattr; 678 __u32 access; 679}; 680 681struct nfs3_readlinkargs { 682 struct nfs_fh * fh; 683 unsigned int pgbase; 684 unsigned int pglen; 685 struct page ** pages; 686}; 687 688struct nfs3_linkres { 689 struct nfs_fattr * dir_attr; 690 struct nfs_fattr * fattr; 691}; 692 693struct nfs3_readdirres { 694 struct nfs_fattr * dir_attr; 695 __be32 * verf; 696 int plus; 697}; 698 699struct nfs3_getaclres { 700 struct nfs_fattr * fattr; 701 int mask; 702 unsigned int acl_access_count; 703 unsigned int acl_default_count; 704 struct posix_acl * acl_access; 705 struct posix_acl * acl_default; 706}; 707 708#ifdef CONFIG_NFS_V4 709 710typedef u64 clientid4; 711 712struct nfs4_accessargs { 713 const struct nfs_fh * fh; 714 const u32 * bitmask; 715 u32 access; 716 struct nfs4_sequence_args seq_args; 717}; 718 719struct nfs4_accessres { 720 const struct nfs_server * server; 721 struct nfs_fattr * fattr; 722 u32 supported; 723 u32 access; 724 struct nfs4_sequence_res seq_res; 725}; 726 727struct nfs4_create_arg { 728 u32 ftype; 729 union { 730 struct { 731 struct page ** pages; 732 unsigned int len; 733 } symlink; /* NF4LNK */ 734 struct { 735 u32 specdata1; 736 u32 specdata2; 737 } device; /* NF4BLK, NF4CHR */ 738 } u; 739 const struct qstr * name; 740 const struct nfs_server * server; 741 const struct iattr * attrs; 742 const struct nfs_fh * dir_fh; 743 const u32 * bitmask; 744 struct nfs4_sequence_args seq_args; 745}; 746 747struct nfs4_create_res { 748 const struct nfs_server * server; 749 struct nfs_fh * fh; 750 struct nfs_fattr * fattr; 751 struct nfs4_change_info dir_cinfo; 752 struct nfs_fattr * dir_fattr; 753 struct nfs4_sequence_res seq_res; 754}; 755 756struct nfs4_fsinfo_arg { 757 const struct nfs_fh * fh; 758 const u32 * bitmask; 759 struct nfs4_sequence_args seq_args; 760}; 761 762struct nfs4_fsinfo_res { 763 struct nfs_fsinfo *fsinfo; 764 struct nfs4_sequence_res seq_res; 765}; 766 767struct nfs4_getattr_arg { 768 const struct nfs_fh * fh; 769 const u32 * bitmask; 770 struct nfs4_sequence_args seq_args; 771}; 772 773struct nfs4_getattr_res { 774 const struct nfs_server * server; 775 struct nfs_fattr * fattr; 776 struct nfs4_sequence_res seq_res; 777}; 778 779struct nfs4_link_arg { 780 const struct nfs_fh * fh; 781 const struct nfs_fh * dir_fh; 782 const struct qstr * name; 783 const u32 * bitmask; 784 struct nfs4_sequence_args seq_args; 785}; 786 787struct nfs4_link_res { 788 const struct nfs_server * server; 789 struct nfs_fattr * fattr; 790 struct nfs4_change_info cinfo; 791 struct nfs_fattr * dir_attr; 792 struct nfs4_sequence_res seq_res; 793}; 794 795 796struct nfs4_lookup_arg { 797 const struct nfs_fh * dir_fh; 798 const struct qstr * name; 799 const u32 * bitmask; 800 struct nfs4_sequence_args seq_args; 801}; 802 803struct nfs4_lookup_res { 804 const struct nfs_server * server; 805 struct nfs_fattr * fattr; 806 struct nfs_fh * fh; 807 struct nfs4_sequence_res seq_res; 808}; 809 810struct nfs4_lookup_root_arg { 811 const u32 * bitmask; 812 struct nfs4_sequence_args seq_args; 813}; 814 815struct nfs4_pathconf_arg { 816 const struct nfs_fh * fh; 817 const u32 * bitmask; 818 struct nfs4_sequence_args seq_args; 819}; 820 821struct nfs4_pathconf_res { 822 struct nfs_pathconf *pathconf; 823 struct nfs4_sequence_res seq_res; 824}; 825 826struct nfs4_readdir_arg { 827 const struct nfs_fh * fh; 828 u64 cookie; 829 nfs4_verifier verifier; 830 u32 count; 831 struct page ** pages; /* zero-copy data */ 832 unsigned int pgbase; /* zero-copy data */ 833 const u32 * bitmask; 834 int plus; 835 struct nfs4_sequence_args seq_args; 836}; 837 838struct nfs4_readdir_res { 839 nfs4_verifier verifier; 840 unsigned int pgbase; 841 struct nfs4_sequence_res seq_res; 842}; 843 844struct nfs4_readlink { 845 const struct nfs_fh * fh; 846 unsigned int pgbase; 847 unsigned int pglen; /* zero-copy data */ 848 struct page ** pages; /* zero-copy data */ 849 struct nfs4_sequence_args seq_args; 850}; 851 852struct nfs4_readlink_res { 853 struct nfs4_sequence_res seq_res; 854}; 855 856#define NFS4_SETCLIENTID_NAMELEN (127) 857struct nfs4_setclientid { 858 const nfs4_verifier * sc_verifier; 859 unsigned int sc_name_len; 860 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1]; 861 u32 sc_prog; 862 unsigned int sc_netid_len; 863 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 864 unsigned int sc_uaddr_len; 865 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 866 u32 sc_cb_ident; 867}; 868 869struct nfs4_setclientid_res { 870 u64 clientid; 871 nfs4_verifier confirm; 872}; 873 874struct nfs4_statfs_arg { 875 const struct nfs_fh * fh; 876 const u32 * bitmask; 877 struct nfs4_sequence_args seq_args; 878}; 879 880struct nfs4_statfs_res { 881 struct nfs_fsstat *fsstat; 882 struct nfs4_sequence_res seq_res; 883}; 884 885struct nfs4_server_caps_arg { 886 struct nfs_fh *fhandle; 887 struct nfs4_sequence_args seq_args; 888}; 889 890struct nfs4_server_caps_res { 891 u32 attr_bitmask[2]; 892 u32 acl_bitmask; 893 u32 has_links; 894 u32 has_symlinks; 895 struct nfs4_sequence_res seq_res; 896}; 897 898struct nfs4_string { 899 unsigned int len; 900 char *data; 901}; 902 903#define NFS4_PATHNAME_MAXCOMPONENTS 512 904struct nfs4_pathname { 905 unsigned int ncomponents; 906 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 907}; 908 909#define NFS4_FS_LOCATION_MAXSERVERS 10 910struct nfs4_fs_location { 911 unsigned int nservers; 912 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 913 struct nfs4_pathname rootpath; 914}; 915 916#define NFS4_FS_LOCATIONS_MAXENTRIES 10 917struct nfs4_fs_locations { 918 struct nfs_fattr fattr; 919 const struct nfs_server *server; 920 struct nfs4_pathname fs_path; 921 int nlocations; 922 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 923}; 924 925struct nfs4_fs_locations_arg { 926 const struct nfs_fh *dir_fh; 927 const struct qstr *name; 928 struct page *page; 929 const u32 *bitmask; 930 struct nfs4_sequence_args seq_args; 931}; 932 933struct nfs4_fs_locations_res { 934 struct nfs4_fs_locations *fs_locations; 935 struct nfs4_sequence_res seq_res; 936}; 937 938#endif /* CONFIG_NFS_V4 */ 939 940struct nfstime4 { 941 u64 seconds; 942 u32 nseconds; 943}; 944 945#ifdef CONFIG_NFS_V4_1 946struct nfs_impl_id4 { 947 u32 domain_len; 948 char *domain; 949 u32 name_len; 950 char *name; 951 struct nfstime4 date; 952}; 953 954#define NFS4_EXCHANGE_ID_LEN (48) 955struct nfs41_exchange_id_args { 956 struct nfs_client *client; 957 nfs4_verifier *verifier; 958 unsigned int id_len; 959 char id[NFS4_EXCHANGE_ID_LEN]; 960 u32 flags; 961}; 962 963struct server_owner { 964 uint64_t minor_id; 965 uint32_t major_id_sz; 966 char major_id[NFS4_OPAQUE_LIMIT]; 967}; 968 969struct server_scope { 970 uint32_t server_scope_sz; 971 char server_scope[NFS4_OPAQUE_LIMIT]; 972}; 973 974struct nfs41_exchange_id_res { 975 struct nfs_client *client; 976 u32 flags; 977}; 978 979struct nfs41_create_session_args { 980 struct nfs_client *client; 981 uint32_t flags; 982 uint32_t cb_program; 983 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 984 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 985}; 986 987struct nfs41_create_session_res { 988 struct nfs_client *client; 989}; 990 991struct nfs41_reclaim_complete_args { 992 /* In the future extend to include curr_fh for use with migration */ 993 unsigned char one_fs:1; 994 struct nfs4_sequence_args seq_args; 995}; 996 997struct nfs41_reclaim_complete_res { 998 struct nfs4_sequence_res seq_res; 999}; 1000#endif /* CONFIG_NFS_V4_1 */ 1001 1002struct nfs_page; 1003 1004#define NFS_PAGEVEC_SIZE (8U) 1005 1006struct nfs_read_data { 1007 int flags; 1008 struct rpc_task task; 1009 struct inode *inode; 1010 struct rpc_cred *cred; 1011 struct nfs_fattr fattr; /* fattr storage */ 1012 struct list_head pages; /* Coalesced read requests */ 1013 struct nfs_page *req; /* multi ops per nfs_page */ 1014 struct page **pagevec; 1015 unsigned int npages; /* Max length of pagevec */ 1016 struct nfs_readargs args; 1017 struct nfs_readres res; 1018#ifdef CONFIG_NFS_V4 1019 unsigned long timestamp; /* For lease renewal */ 1020#endif 1021 struct page *page_array[NFS_PAGEVEC_SIZE]; 1022}; 1023 1024struct nfs_write_data { 1025 int flags; 1026 struct rpc_task task; 1027 struct inode *inode; 1028 struct rpc_cred *cred; 1029 struct nfs_fattr fattr; 1030 struct nfs_writeverf verf; 1031 struct list_head pages; /* Coalesced requests we wish to flush */ 1032 struct nfs_page *req; /* multi ops per nfs_page */ 1033 struct page **pagevec; 1034 unsigned int npages; /* Max length of pagevec */ 1035 struct nfs_writeargs args; /* argument struct */ 1036 struct nfs_writeres res; /* result struct */ 1037#ifdef CONFIG_NFS_V4 1038 unsigned long timestamp; /* For lease renewal */ 1039#endif 1040 struct page *page_array[NFS_PAGEVEC_SIZE]; 1041}; 1042 1043struct nfs_access_entry; 1044 1045/* 1046 * RPC procedure vector for NFSv2/NFSv3 demuxing 1047 */ 1048struct nfs_rpc_ops { 1049 u32 version; /* Protocol version */ 1050 const struct dentry_operations *dentry_ops; 1051 const struct inode_operations *dir_inode_ops; 1052 const struct inode_operations *file_inode_ops; 1053 1054 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1055 struct nfs_fsinfo *); 1056 int (*lookupfh)(struct nfs_server *, struct nfs_fh *, 1057 struct qstr *, struct nfs_fh *, 1058 struct nfs_fattr *); 1059 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1060 struct nfs_fattr *); 1061 int (*setattr) (struct dentry *, struct nfs_fattr *, 1062 struct iattr *); 1063 int (*lookup) (struct inode *, struct qstr *, 1064 struct nfs_fh *, struct nfs_fattr *); 1065 int (*access) (struct inode *, struct nfs_access_entry *); 1066 int (*readlink)(struct inode *, struct page *, unsigned int, 1067 unsigned int); 1068 int (*create) (struct inode *, struct dentry *, 1069 struct iattr *, int, struct nfs_open_context *); 1070 int (*remove) (struct inode *, struct qstr *); 1071 void (*unlink_setup) (struct rpc_message *, struct inode *dir); 1072 int (*unlink_done) (struct rpc_task *, struct inode *); 1073 int (*rename) (struct inode *, struct qstr *, 1074 struct inode *, struct qstr *); 1075 void (*rename_setup) (struct rpc_message *msg, struct inode *dir); 1076 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1077 int (*link) (struct inode *, struct inode *, struct qstr *); 1078 int (*symlink) (struct inode *, struct dentry *, struct page *, 1079 unsigned int, struct iattr *); 1080 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1081 int (*rmdir) (struct inode *, struct qstr *); 1082 int (*readdir) (struct dentry *, struct rpc_cred *, 1083 u64, struct page **, unsigned int, int); 1084 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1085 dev_t); 1086 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1087 struct nfs_fsstat *); 1088 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1089 struct nfs_fsinfo *); 1090 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1091 struct nfs_pathconf *); 1092 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1093 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int); 1094 void (*read_setup) (struct nfs_read_data *, struct rpc_message *); 1095 int (*read_done) (struct rpc_task *, struct nfs_read_data *); 1096 void (*write_setup) (struct nfs_write_data *, struct rpc_message *); 1097 int (*write_done) (struct rpc_task *, struct nfs_write_data *); 1098 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *); 1099 int (*commit_done) (struct rpc_task *, struct nfs_write_data *); 1100 int (*lock)(struct file *, int, struct file_lock *); 1101 int (*lock_check_bounds)(const struct file_lock *); 1102 void (*clear_acl_cache)(struct inode *); 1103 void (*close_context)(struct nfs_open_context *ctx, int); 1104 struct inode * (*open_context) (struct inode *dir, 1105 struct nfs_open_context *ctx, 1106 int open_flags, 1107 struct iattr *iattr); 1108}; 1109 1110/* 1111 * NFS_CALL(getattr, inode, (fattr)); 1112 * into 1113 * NFS_PROTO(inode)->getattr(fattr); 1114 */ 1115#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1116 1117/* 1118 * Function vectors etc. for the NFS client 1119 */ 1120extern const struct nfs_rpc_ops nfs_v2_clientops; 1121extern const struct nfs_rpc_ops nfs_v3_clientops; 1122extern const struct nfs_rpc_ops nfs_v4_clientops; 1123extern struct rpc_version nfs_version2; 1124extern struct rpc_version nfs_version3; 1125extern struct rpc_version nfs_version4; 1126 1127extern struct rpc_version nfsacl_version3; 1128extern struct rpc_program nfsacl_program; 1129 1130#endif 1131