1 #ifndef _LINUX_NFS_XDR_H 2 #define _LINUX_NFS_XDR_H 3 4 #include <linux/nfsacl.h> 5 #include <linux/nfs3.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 /* Forward declaration for NFS v3 */ 19 struct nfs4_secinfo_flavors; 20 21 struct nfs_fsid { 22 uint64_t major; 23 uint64_t minor; 24 }; 25 26 /* 27 * Helper for checking equality between 2 fsids. 28 */ 29 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 30 { 31 return a->major == b->major && a->minor == b->minor; 32 } 33 34 struct nfs_fattr { 35 unsigned int valid; /* which fields are valid */ 36 umode_t mode; 37 __u32 nlink; 38 __u32 uid; 39 __u32 gid; 40 dev_t rdev; 41 __u64 size; 42 union { 43 struct { 44 __u32 blocksize; 45 __u32 blocks; 46 } nfs2; 47 struct { 48 __u64 used; 49 } nfs3; 50 } du; 51 struct nfs_fsid fsid; 52 __u64 fileid; 53 __u64 mounted_on_fileid; 54 struct timespec atime; 55 struct timespec mtime; 56 struct timespec ctime; 57 __u64 change_attr; /* NFSv4 change attribute */ 58 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 59 __u64 pre_size; /* pre_op_attr.size */ 60 struct timespec pre_mtime; /* pre_op_attr.mtime */ 61 struct timespec pre_ctime; /* pre_op_attr.ctime */ 62 unsigned long time_start; 63 unsigned long gencount; 64 }; 65 66 #define NFS_ATTR_FATTR_TYPE (1U << 0) 67 #define NFS_ATTR_FATTR_MODE (1U << 1) 68 #define NFS_ATTR_FATTR_NLINK (1U << 2) 69 #define NFS_ATTR_FATTR_OWNER (1U << 3) 70 #define NFS_ATTR_FATTR_GROUP (1U << 4) 71 #define NFS_ATTR_FATTR_RDEV (1U << 5) 72 #define NFS_ATTR_FATTR_SIZE (1U << 6) 73 #define NFS_ATTR_FATTR_PRESIZE (1U << 7) 74 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 75 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 76 #define NFS_ATTR_FATTR_FSID (1U << 10) 77 #define NFS_ATTR_FATTR_FILEID (1U << 11) 78 #define NFS_ATTR_FATTR_ATIME (1U << 12) 79 #define NFS_ATTR_FATTR_MTIME (1U << 13) 80 #define NFS_ATTR_FATTR_CTIME (1U << 14) 81 #define NFS_ATTR_FATTR_PREMTIME (1U << 15) 82 #define NFS_ATTR_FATTR_PRECTIME (1U << 16) 83 #define NFS_ATTR_FATTR_CHANGE (1U << 17) 84 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 85 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */ 86 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */ 87 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21) 88 89 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 90 | NFS_ATTR_FATTR_MODE \ 91 | NFS_ATTR_FATTR_NLINK \ 92 | NFS_ATTR_FATTR_OWNER \ 93 | NFS_ATTR_FATTR_GROUP \ 94 | NFS_ATTR_FATTR_RDEV \ 95 | NFS_ATTR_FATTR_SIZE \ 96 | NFS_ATTR_FATTR_FSID \ 97 | NFS_ATTR_FATTR_FILEID \ 98 | NFS_ATTR_FATTR_ATIME \ 99 | NFS_ATTR_FATTR_MTIME \ 100 | NFS_ATTR_FATTR_CTIME) 101 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 102 | NFS_ATTR_FATTR_BLOCKS_USED) 103 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 104 | NFS_ATTR_FATTR_SPACE_USED) 105 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 106 | NFS_ATTR_FATTR_SPACE_USED \ 107 | NFS_ATTR_FATTR_CHANGE) 108 109 /* 110 * Info on the file system 111 */ 112 struct nfs_fsinfo { 113 struct nfs_fattr *fattr; /* Post-op attributes */ 114 __u32 rtmax; /* max. read transfer size */ 115 __u32 rtpref; /* pref. read transfer size */ 116 __u32 rtmult; /* reads should be multiple of this */ 117 __u32 wtmax; /* max. write transfer size */ 118 __u32 wtpref; /* pref. write transfer size */ 119 __u32 wtmult; /* writes should be multiple of this */ 120 __u32 dtpref; /* pref. readdir transfer size */ 121 __u64 maxfilesize; 122 struct timespec time_delta; /* server time granularity */ 123 __u32 lease_time; /* in seconds */ 124 __u32 layouttype; /* supported pnfs layout driver */ 125 __u32 blksize; /* preferred pnfs io block size */ 126 }; 127 128 struct nfs_fsstat { 129 struct nfs_fattr *fattr; /* Post-op attributes */ 130 __u64 tbytes; /* total size in bytes */ 131 __u64 fbytes; /* # of free bytes */ 132 __u64 abytes; /* # of bytes available to user */ 133 __u64 tfiles; /* # of files */ 134 __u64 ffiles; /* # of free files */ 135 __u64 afiles; /* # of files available to user */ 136 }; 137 138 struct nfs2_fsstat { 139 __u32 tsize; /* Server transfer size */ 140 __u32 bsize; /* Filesystem block size */ 141 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 142 __u32 bfree; /* No. of free "bsize" blocks */ 143 __u32 bavail; /* No. of available "bsize" blocks */ 144 }; 145 146 struct nfs_pathconf { 147 struct nfs_fattr *fattr; /* Post-op attributes */ 148 __u32 max_link; /* max # of hard links */ 149 __u32 max_namelen; /* max name length */ 150 }; 151 152 struct nfs4_change_info { 153 u32 atomic; 154 u64 before; 155 u64 after; 156 }; 157 158 struct nfs_seqid; 159 160 /* nfs41 sessions channel attributes */ 161 struct nfs4_channel_attrs { 162 u32 max_rqst_sz; 163 u32 max_resp_sz; 164 u32 max_resp_sz_cached; 165 u32 max_ops; 166 u32 max_reqs; 167 }; 168 169 /* nfs41 sessions slot seqid */ 170 struct nfs4_slot { 171 u32 seq_nr; 172 }; 173 174 struct nfs4_sequence_args { 175 struct nfs4_session *sa_session; 176 u8 sa_slotid; 177 u8 sa_cache_this; 178 }; 179 180 struct nfs4_sequence_res { 181 struct nfs4_session *sr_session; 182 struct nfs4_slot *sr_slot; /* slot used to send request */ 183 int sr_status; /* sequence operation status */ 184 unsigned long sr_renewal_time; 185 u32 sr_status_flags; 186 }; 187 188 struct nfs4_get_lease_time_args { 189 struct nfs4_sequence_args la_seq_args; 190 }; 191 192 struct nfs4_get_lease_time_res { 193 struct nfs_fsinfo *lr_fsinfo; 194 struct nfs4_sequence_res lr_seq_res; 195 }; 196 197 #define PNFS_LAYOUT_MAXSIZE 4096 198 199 struct nfs4_layoutdriver_data { 200 struct page **pages; 201 __u32 pglen; 202 __u32 len; 203 }; 204 205 struct pnfs_layout_range { 206 u32 iomode; 207 u64 offset; 208 u64 length; 209 }; 210 211 struct nfs4_layoutget_args { 212 __u32 type; 213 struct pnfs_layout_range range; 214 __u64 minlength; 215 __u32 maxcount; 216 struct inode *inode; 217 struct nfs_open_context *ctx; 218 struct nfs4_sequence_args seq_args; 219 nfs4_stateid stateid; 220 struct nfs4_layoutdriver_data layout; 221 }; 222 223 struct nfs4_layoutget_res { 224 __u32 return_on_close; 225 struct pnfs_layout_range range; 226 __u32 type; 227 nfs4_stateid stateid; 228 struct nfs4_sequence_res seq_res; 229 struct nfs4_layoutdriver_data *layoutp; 230 }; 231 232 struct nfs4_layoutget { 233 struct nfs4_layoutget_args args; 234 struct nfs4_layoutget_res res; 235 struct pnfs_layout_segment **lsegpp; 236 gfp_t gfp_flags; 237 }; 238 239 struct nfs4_getdevicelist_args { 240 const struct nfs_fh *fh; 241 u32 layoutclass; 242 struct nfs4_sequence_args seq_args; 243 }; 244 245 struct nfs4_getdevicelist_res { 246 struct pnfs_devicelist *devlist; 247 struct nfs4_sequence_res seq_res; 248 }; 249 250 struct nfs4_getdeviceinfo_args { 251 struct pnfs_device *pdev; 252 struct nfs4_sequence_args seq_args; 253 }; 254 255 struct nfs4_getdeviceinfo_res { 256 struct pnfs_device *pdev; 257 struct nfs4_sequence_res seq_res; 258 }; 259 260 struct nfs4_layoutcommit_args { 261 nfs4_stateid stateid; 262 __u64 lastbytewritten; 263 struct inode *inode; 264 const u32 *bitmask; 265 struct nfs4_sequence_args seq_args; 266 }; 267 268 struct nfs4_layoutcommit_res { 269 struct nfs_fattr *fattr; 270 const struct nfs_server *server; 271 struct nfs4_sequence_res seq_res; 272 int status; 273 }; 274 275 struct nfs4_layoutcommit_data { 276 struct rpc_task task; 277 struct nfs_fattr fattr; 278 struct list_head lseg_list; 279 struct rpc_cred *cred; 280 struct nfs4_layoutcommit_args args; 281 struct nfs4_layoutcommit_res res; 282 }; 283 284 struct nfs4_layoutreturn_args { 285 struct pnfs_layout_hdr *layout; 286 struct inode *inode; 287 nfs4_stateid stateid; 288 __u32 layout_type; 289 struct nfs4_sequence_args seq_args; 290 }; 291 292 struct nfs4_layoutreturn_res { 293 struct nfs4_sequence_res seq_res; 294 u32 lrs_present; 295 nfs4_stateid stateid; 296 }; 297 298 struct nfs4_layoutreturn { 299 struct nfs4_layoutreturn_args args; 300 struct nfs4_layoutreturn_res res; 301 struct rpc_cred *cred; 302 struct nfs_client *clp; 303 int rpc_status; 304 }; 305 306 /* 307 * Arguments to the open call. 308 */ 309 struct nfs_openargs { 310 const struct nfs_fh * fh; 311 struct nfs_seqid * seqid; 312 int open_flags; 313 fmode_t fmode; 314 __u64 clientid; 315 __u64 id; 316 union { 317 struct { 318 struct iattr * attrs; /* UNCHECKED, GUARDED */ 319 nfs4_verifier verifier; /* EXCLUSIVE */ 320 }; 321 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 322 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 323 } u; 324 const struct qstr * name; 325 const struct nfs_server *server; /* Needed for ID mapping */ 326 const u32 * bitmask; 327 __u32 claim; 328 struct nfs4_sequence_args seq_args; 329 }; 330 331 struct nfs_openres { 332 nfs4_stateid stateid; 333 struct nfs_fh fh; 334 struct nfs4_change_info cinfo; 335 __u32 rflags; 336 struct nfs_fattr * f_attr; 337 struct nfs_fattr * dir_attr; 338 struct nfs_seqid * seqid; 339 const struct nfs_server *server; 340 fmode_t delegation_type; 341 nfs4_stateid delegation; 342 __u32 do_recall; 343 __u64 maxsize; 344 __u32 attrset[NFS4_BITMAP_SIZE]; 345 struct nfs4_sequence_res seq_res; 346 }; 347 348 /* 349 * Arguments to the open_confirm call. 350 */ 351 struct nfs_open_confirmargs { 352 const struct nfs_fh * fh; 353 nfs4_stateid * stateid; 354 struct nfs_seqid * seqid; 355 }; 356 357 struct nfs_open_confirmres { 358 nfs4_stateid stateid; 359 struct nfs_seqid * seqid; 360 }; 361 362 /* 363 * Arguments to the close call. 364 */ 365 struct nfs_closeargs { 366 struct nfs_fh * fh; 367 nfs4_stateid * stateid; 368 struct nfs_seqid * seqid; 369 fmode_t fmode; 370 const u32 * bitmask; 371 struct nfs4_sequence_args seq_args; 372 }; 373 374 struct nfs_closeres { 375 nfs4_stateid stateid; 376 struct nfs_fattr * fattr; 377 struct nfs_seqid * seqid; 378 const struct nfs_server *server; 379 struct nfs4_sequence_res seq_res; 380 }; 381 /* 382 * * Arguments to the lock,lockt, and locku call. 383 * */ 384 struct nfs_lowner { 385 __u64 clientid; 386 __u64 id; 387 dev_t s_dev; 388 }; 389 390 struct nfs_lock_args { 391 struct nfs_fh * fh; 392 struct file_lock * fl; 393 struct nfs_seqid * lock_seqid; 394 nfs4_stateid * lock_stateid; 395 struct nfs_seqid * open_seqid; 396 nfs4_stateid * open_stateid; 397 struct nfs_lowner lock_owner; 398 unsigned char block : 1; 399 unsigned char reclaim : 1; 400 unsigned char new_lock_owner : 1; 401 struct nfs4_sequence_args seq_args; 402 }; 403 404 struct nfs_lock_res { 405 nfs4_stateid stateid; 406 struct nfs_seqid * lock_seqid; 407 struct nfs_seqid * open_seqid; 408 struct nfs4_sequence_res seq_res; 409 }; 410 411 struct nfs_locku_args { 412 struct nfs_fh * fh; 413 struct file_lock * fl; 414 struct nfs_seqid * seqid; 415 nfs4_stateid * stateid; 416 struct nfs4_sequence_args seq_args; 417 }; 418 419 struct nfs_locku_res { 420 nfs4_stateid stateid; 421 struct nfs_seqid * seqid; 422 struct nfs4_sequence_res seq_res; 423 }; 424 425 struct nfs_lockt_args { 426 struct nfs_fh * fh; 427 struct file_lock * fl; 428 struct nfs_lowner lock_owner; 429 struct nfs4_sequence_args seq_args; 430 }; 431 432 struct nfs_lockt_res { 433 struct file_lock * denied; /* LOCK, LOCKT failed */ 434 struct nfs4_sequence_res seq_res; 435 }; 436 437 struct nfs_release_lockowner_args { 438 struct nfs_lowner lock_owner; 439 }; 440 441 struct nfs4_delegreturnargs { 442 const struct nfs_fh *fhandle; 443 const nfs4_stateid *stateid; 444 const u32 * bitmask; 445 struct nfs4_sequence_args seq_args; 446 }; 447 448 struct nfs4_delegreturnres { 449 struct nfs_fattr * fattr; 450 const struct nfs_server *server; 451 struct nfs4_sequence_res seq_res; 452 }; 453 454 /* 455 * Arguments to the read call. 456 */ 457 struct nfs_readargs { 458 struct nfs_fh * fh; 459 struct nfs_open_context *context; 460 struct nfs_lock_context *lock_context; 461 __u64 offset; 462 __u32 count; 463 unsigned int pgbase; 464 struct page ** pages; 465 struct nfs4_sequence_args seq_args; 466 }; 467 468 struct nfs_readres { 469 struct nfs_fattr * fattr; 470 __u32 count; 471 int eof; 472 struct nfs4_sequence_res seq_res; 473 }; 474 475 /* 476 * Arguments to the write call. 477 */ 478 struct nfs_writeargs { 479 struct nfs_fh * fh; 480 struct nfs_open_context *context; 481 struct nfs_lock_context *lock_context; 482 __u64 offset; 483 __u32 count; 484 enum nfs3_stable_how stable; 485 unsigned int pgbase; 486 struct page ** pages; 487 const u32 * bitmask; 488 struct nfs4_sequence_args seq_args; 489 }; 490 491 struct nfs_writeverf { 492 enum nfs3_stable_how committed; 493 __be32 verifier[2]; 494 }; 495 496 struct nfs_writeres { 497 struct nfs_fattr * fattr; 498 struct nfs_writeverf * verf; 499 __u32 count; 500 const struct nfs_server *server; 501 struct nfs4_sequence_res seq_res; 502 }; 503 504 /* 505 * Common arguments to the unlink call 506 */ 507 struct nfs_removeargs { 508 const struct nfs_fh *fh; 509 struct qstr name; 510 const u32 * bitmask; 511 struct nfs4_sequence_args seq_args; 512 }; 513 514 struct nfs_removeres { 515 const struct nfs_server *server; 516 struct nfs_fattr *dir_attr; 517 struct nfs4_change_info cinfo; 518 struct nfs4_sequence_res seq_res; 519 }; 520 521 /* 522 * Common arguments to the rename call 523 */ 524 struct nfs_renameargs { 525 const struct nfs_fh *old_dir; 526 const struct nfs_fh *new_dir; 527 const struct qstr *old_name; 528 const struct qstr *new_name; 529 const u32 *bitmask; 530 struct nfs4_sequence_args seq_args; 531 }; 532 533 struct nfs_renameres { 534 const struct nfs_server *server; 535 struct nfs4_change_info old_cinfo; 536 struct nfs_fattr *old_fattr; 537 struct nfs4_change_info new_cinfo; 538 struct nfs_fattr *new_fattr; 539 struct nfs4_sequence_res seq_res; 540 }; 541 542 /* 543 * Argument struct for decode_entry function 544 */ 545 struct nfs_entry { 546 __u64 ino; 547 __u64 cookie, 548 prev_cookie; 549 const char * name; 550 unsigned int len; 551 int eof; 552 struct nfs_fh * fh; 553 struct nfs_fattr * fattr; 554 unsigned char d_type; 555 struct nfs_server * server; 556 }; 557 558 /* 559 * The following types are for NFSv2 only. 560 */ 561 struct nfs_sattrargs { 562 struct nfs_fh * fh; 563 struct iattr * sattr; 564 }; 565 566 struct nfs_diropargs { 567 struct nfs_fh * fh; 568 const char * name; 569 unsigned int len; 570 }; 571 572 struct nfs_createargs { 573 struct nfs_fh * fh; 574 const char * name; 575 unsigned int len; 576 struct iattr * sattr; 577 }; 578 579 struct nfs_setattrargs { 580 struct nfs_fh * fh; 581 nfs4_stateid stateid; 582 struct iattr * iap; 583 const struct nfs_server * server; /* Needed for name mapping */ 584 const u32 * bitmask; 585 struct nfs4_sequence_args seq_args; 586 }; 587 588 struct nfs_setaclargs { 589 struct nfs_fh * fh; 590 size_t acl_len; 591 unsigned int acl_pgbase; 592 struct page ** acl_pages; 593 struct nfs4_sequence_args seq_args; 594 }; 595 596 struct nfs_setaclres { 597 struct nfs4_sequence_res seq_res; 598 }; 599 600 struct nfs_getaclargs { 601 struct nfs_fh * fh; 602 size_t acl_len; 603 unsigned int acl_pgbase; 604 struct page ** acl_pages; 605 struct nfs4_sequence_args seq_args; 606 }; 607 608 struct nfs_getaclres { 609 size_t acl_len; 610 struct nfs4_sequence_res seq_res; 611 }; 612 613 struct nfs_setattrres { 614 struct nfs_fattr * fattr; 615 const struct nfs_server * server; 616 struct nfs4_sequence_res seq_res; 617 }; 618 619 struct nfs_linkargs { 620 struct nfs_fh * fromfh; 621 struct nfs_fh * tofh; 622 const char * toname; 623 unsigned int tolen; 624 }; 625 626 struct nfs_symlinkargs { 627 struct nfs_fh * fromfh; 628 const char * fromname; 629 unsigned int fromlen; 630 struct page ** pages; 631 unsigned int pathlen; 632 struct iattr * sattr; 633 }; 634 635 struct nfs_readdirargs { 636 struct nfs_fh * fh; 637 __u32 cookie; 638 unsigned int count; 639 struct page ** pages; 640 }; 641 642 struct nfs3_getaclargs { 643 struct nfs_fh * fh; 644 int mask; 645 struct page ** pages; 646 }; 647 648 struct nfs3_setaclargs { 649 struct inode * inode; 650 int mask; 651 struct posix_acl * acl_access; 652 struct posix_acl * acl_default; 653 size_t len; 654 unsigned int npages; 655 struct page ** pages; 656 }; 657 658 struct nfs_diropok { 659 struct nfs_fh * fh; 660 struct nfs_fattr * fattr; 661 }; 662 663 struct nfs_readlinkargs { 664 struct nfs_fh * fh; 665 unsigned int pgbase; 666 unsigned int pglen; 667 struct page ** pages; 668 }; 669 670 struct nfs3_sattrargs { 671 struct nfs_fh * fh; 672 struct iattr * sattr; 673 unsigned int guard; 674 struct timespec guardtime; 675 }; 676 677 struct nfs3_diropargs { 678 struct nfs_fh * fh; 679 const char * name; 680 unsigned int len; 681 }; 682 683 struct nfs3_accessargs { 684 struct nfs_fh * fh; 685 __u32 access; 686 }; 687 688 struct nfs3_createargs { 689 struct nfs_fh * fh; 690 const char * name; 691 unsigned int len; 692 struct iattr * sattr; 693 enum nfs3_createmode createmode; 694 __be32 verifier[2]; 695 }; 696 697 struct nfs3_mkdirargs { 698 struct nfs_fh * fh; 699 const char * name; 700 unsigned int len; 701 struct iattr * sattr; 702 }; 703 704 struct nfs3_symlinkargs { 705 struct nfs_fh * fromfh; 706 const char * fromname; 707 unsigned int fromlen; 708 struct page ** pages; 709 unsigned int pathlen; 710 struct iattr * sattr; 711 }; 712 713 struct nfs3_mknodargs { 714 struct nfs_fh * fh; 715 const char * name; 716 unsigned int len; 717 enum nfs3_ftype type; 718 struct iattr * sattr; 719 dev_t rdev; 720 }; 721 722 struct nfs3_linkargs { 723 struct nfs_fh * fromfh; 724 struct nfs_fh * tofh; 725 const char * toname; 726 unsigned int tolen; 727 }; 728 729 struct nfs3_readdirargs { 730 struct nfs_fh * fh; 731 __u64 cookie; 732 __be32 verf[2]; 733 int plus; 734 unsigned int count; 735 struct page ** pages; 736 }; 737 738 struct nfs3_diropres { 739 struct nfs_fattr * dir_attr; 740 struct nfs_fh * fh; 741 struct nfs_fattr * fattr; 742 }; 743 744 struct nfs3_accessres { 745 struct nfs_fattr * fattr; 746 __u32 access; 747 }; 748 749 struct nfs3_readlinkargs { 750 struct nfs_fh * fh; 751 unsigned int pgbase; 752 unsigned int pglen; 753 struct page ** pages; 754 }; 755 756 struct nfs3_linkres { 757 struct nfs_fattr * dir_attr; 758 struct nfs_fattr * fattr; 759 }; 760 761 struct nfs3_readdirres { 762 struct nfs_fattr * dir_attr; 763 __be32 * verf; 764 int plus; 765 }; 766 767 struct nfs3_getaclres { 768 struct nfs_fattr * fattr; 769 int mask; 770 unsigned int acl_access_count; 771 unsigned int acl_default_count; 772 struct posix_acl * acl_access; 773 struct posix_acl * acl_default; 774 }; 775 776 struct nfs4_string { 777 unsigned int len; 778 char *data; 779 }; 780 781 #ifdef CONFIG_NFS_V4 782 783 typedef u64 clientid4; 784 785 struct nfs4_accessargs { 786 const struct nfs_fh * fh; 787 const u32 * bitmask; 788 u32 access; 789 struct nfs4_sequence_args seq_args; 790 }; 791 792 struct nfs4_accessres { 793 const struct nfs_server * server; 794 struct nfs_fattr * fattr; 795 u32 supported; 796 u32 access; 797 struct nfs4_sequence_res seq_res; 798 }; 799 800 struct nfs4_create_arg { 801 u32 ftype; 802 union { 803 struct { 804 struct page ** pages; 805 unsigned int len; 806 } symlink; /* NF4LNK */ 807 struct { 808 u32 specdata1; 809 u32 specdata2; 810 } device; /* NF4BLK, NF4CHR */ 811 } u; 812 const struct qstr * name; 813 const struct nfs_server * server; 814 const struct iattr * attrs; 815 const struct nfs_fh * dir_fh; 816 const u32 * bitmask; 817 struct nfs4_sequence_args seq_args; 818 }; 819 820 struct nfs4_create_res { 821 const struct nfs_server * server; 822 struct nfs_fh * fh; 823 struct nfs_fattr * fattr; 824 struct nfs4_change_info dir_cinfo; 825 struct nfs_fattr * dir_fattr; 826 struct nfs4_sequence_res seq_res; 827 }; 828 829 struct nfs4_fsinfo_arg { 830 const struct nfs_fh * fh; 831 const u32 * bitmask; 832 struct nfs4_sequence_args seq_args; 833 }; 834 835 struct nfs4_fsinfo_res { 836 struct nfs_fsinfo *fsinfo; 837 struct nfs4_sequence_res seq_res; 838 }; 839 840 struct nfs4_getattr_arg { 841 const struct nfs_fh * fh; 842 const u32 * bitmask; 843 struct nfs4_sequence_args seq_args; 844 }; 845 846 struct nfs4_getattr_res { 847 const struct nfs_server * server; 848 struct nfs_fattr * fattr; 849 struct nfs4_sequence_res seq_res; 850 }; 851 852 struct nfs4_link_arg { 853 const struct nfs_fh * fh; 854 const struct nfs_fh * dir_fh; 855 const struct qstr * name; 856 const u32 * bitmask; 857 struct nfs4_sequence_args seq_args; 858 }; 859 860 struct nfs4_link_res { 861 const struct nfs_server * server; 862 struct nfs_fattr * fattr; 863 struct nfs4_change_info cinfo; 864 struct nfs_fattr * dir_attr; 865 struct nfs4_sequence_res seq_res; 866 }; 867 868 869 struct nfs4_lookup_arg { 870 const struct nfs_fh * dir_fh; 871 const struct qstr * name; 872 const u32 * bitmask; 873 struct nfs4_sequence_args seq_args; 874 }; 875 876 struct nfs4_lookup_res { 877 const struct nfs_server * server; 878 struct nfs_fattr * fattr; 879 struct nfs_fh * fh; 880 struct nfs4_sequence_res seq_res; 881 }; 882 883 struct nfs4_lookup_root_arg { 884 const u32 * bitmask; 885 struct nfs4_sequence_args seq_args; 886 }; 887 888 struct nfs4_pathconf_arg { 889 const struct nfs_fh * fh; 890 const u32 * bitmask; 891 struct nfs4_sequence_args seq_args; 892 }; 893 894 struct nfs4_pathconf_res { 895 struct nfs_pathconf *pathconf; 896 struct nfs4_sequence_res seq_res; 897 }; 898 899 struct nfs4_readdir_arg { 900 const struct nfs_fh * fh; 901 u64 cookie; 902 nfs4_verifier verifier; 903 u32 count; 904 struct page ** pages; /* zero-copy data */ 905 unsigned int pgbase; /* zero-copy data */ 906 const u32 * bitmask; 907 int plus; 908 struct nfs4_sequence_args seq_args; 909 }; 910 911 struct nfs4_readdir_res { 912 nfs4_verifier verifier; 913 unsigned int pgbase; 914 struct nfs4_sequence_res seq_res; 915 }; 916 917 struct nfs4_readlink { 918 const struct nfs_fh * fh; 919 unsigned int pgbase; 920 unsigned int pglen; /* zero-copy data */ 921 struct page ** pages; /* zero-copy data */ 922 struct nfs4_sequence_args seq_args; 923 }; 924 925 struct nfs4_readlink_res { 926 struct nfs4_sequence_res seq_res; 927 }; 928 929 #define NFS4_SETCLIENTID_NAMELEN (127) 930 struct nfs4_setclientid { 931 const nfs4_verifier * sc_verifier; 932 unsigned int sc_name_len; 933 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1]; 934 u32 sc_prog; 935 unsigned int sc_netid_len; 936 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 937 unsigned int sc_uaddr_len; 938 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 939 u32 sc_cb_ident; 940 }; 941 942 struct nfs4_setclientid_res { 943 u64 clientid; 944 nfs4_verifier confirm; 945 }; 946 947 struct nfs4_statfs_arg { 948 const struct nfs_fh * fh; 949 const u32 * bitmask; 950 struct nfs4_sequence_args seq_args; 951 }; 952 953 struct nfs4_statfs_res { 954 struct nfs_fsstat *fsstat; 955 struct nfs4_sequence_res seq_res; 956 }; 957 958 struct nfs4_server_caps_arg { 959 struct nfs_fh *fhandle; 960 struct nfs4_sequence_args seq_args; 961 }; 962 963 struct nfs4_server_caps_res { 964 u32 attr_bitmask[3]; 965 u32 acl_bitmask; 966 u32 has_links; 967 u32 has_symlinks; 968 struct nfs4_sequence_res seq_res; 969 }; 970 971 #define NFS4_PATHNAME_MAXCOMPONENTS 512 972 struct nfs4_pathname { 973 unsigned int ncomponents; 974 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 975 }; 976 977 #define NFS4_FS_LOCATION_MAXSERVERS 10 978 struct nfs4_fs_location { 979 unsigned int nservers; 980 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 981 struct nfs4_pathname rootpath; 982 }; 983 984 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 985 struct nfs4_fs_locations { 986 struct nfs_fattr fattr; 987 const struct nfs_server *server; 988 struct nfs4_pathname fs_path; 989 int nlocations; 990 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 991 }; 992 993 struct nfs4_fs_locations_arg { 994 const struct nfs_fh *dir_fh; 995 const struct qstr *name; 996 struct page *page; 997 const u32 *bitmask; 998 struct nfs4_sequence_args seq_args; 999 }; 1000 1001 struct nfs4_fs_locations_res { 1002 struct nfs4_fs_locations *fs_locations; 1003 struct nfs4_sequence_res seq_res; 1004 }; 1005 1006 struct nfs4_secinfo_oid { 1007 unsigned int len; 1008 char data[GSS_OID_MAX_LEN]; 1009 }; 1010 1011 struct nfs4_secinfo_gss { 1012 struct nfs4_secinfo_oid sec_oid4; 1013 unsigned int qop4; 1014 unsigned int service; 1015 }; 1016 1017 struct nfs4_secinfo_flavor { 1018 unsigned int flavor; 1019 struct nfs4_secinfo_gss gss; 1020 }; 1021 1022 struct nfs4_secinfo_flavors { 1023 unsigned int num_flavors; 1024 struct nfs4_secinfo_flavor flavors[0]; 1025 }; 1026 1027 struct nfs4_secinfo_arg { 1028 const struct nfs_fh *dir_fh; 1029 const struct qstr *name; 1030 struct nfs4_sequence_args seq_args; 1031 }; 1032 1033 struct nfs4_secinfo_res { 1034 struct nfs4_secinfo_flavors *flavors; 1035 struct nfs4_sequence_res seq_res; 1036 }; 1037 1038 #endif /* CONFIG_NFS_V4 */ 1039 1040 struct nfstime4 { 1041 u64 seconds; 1042 u32 nseconds; 1043 }; 1044 1045 #ifdef CONFIG_NFS_V4_1 1046 struct nfs_impl_id4 { 1047 u32 domain_len; 1048 char *domain; 1049 u32 name_len; 1050 char *name; 1051 struct nfstime4 date; 1052 }; 1053 1054 #define NFS4_EXCHANGE_ID_LEN (48) 1055 struct nfs41_exchange_id_args { 1056 struct nfs_client *client; 1057 nfs4_verifier *verifier; 1058 unsigned int id_len; 1059 char id[NFS4_EXCHANGE_ID_LEN]; 1060 u32 flags; 1061 }; 1062 1063 struct server_owner { 1064 uint64_t minor_id; 1065 uint32_t major_id_sz; 1066 char major_id[NFS4_OPAQUE_LIMIT]; 1067 }; 1068 1069 struct server_scope { 1070 uint32_t server_scope_sz; 1071 char server_scope[NFS4_OPAQUE_LIMIT]; 1072 }; 1073 1074 struct nfs41_exchange_id_res { 1075 struct nfs_client *client; 1076 u32 flags; 1077 struct server_scope *server_scope; 1078 }; 1079 1080 struct nfs41_create_session_args { 1081 struct nfs_client *client; 1082 uint32_t flags; 1083 uint32_t cb_program; 1084 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1085 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1086 }; 1087 1088 struct nfs41_create_session_res { 1089 struct nfs_client *client; 1090 }; 1091 1092 struct nfs41_reclaim_complete_args { 1093 /* In the future extend to include curr_fh for use with migration */ 1094 unsigned char one_fs:1; 1095 struct nfs4_sequence_args seq_args; 1096 }; 1097 1098 struct nfs41_reclaim_complete_res { 1099 struct nfs4_sequence_res seq_res; 1100 }; 1101 1102 #define SECINFO_STYLE_CURRENT_FH 0 1103 #define SECINFO_STYLE_PARENT 1 1104 struct nfs41_secinfo_no_name_args { 1105 int style; 1106 struct nfs4_sequence_args seq_args; 1107 }; 1108 1109 struct nfs41_test_stateid_args { 1110 nfs4_stateid *stateid; 1111 struct nfs4_sequence_args seq_args; 1112 }; 1113 1114 struct nfs41_test_stateid_res { 1115 unsigned int status; 1116 struct nfs4_sequence_res seq_res; 1117 }; 1118 1119 struct nfs41_free_stateid_args { 1120 nfs4_stateid *stateid; 1121 struct nfs4_sequence_args seq_args; 1122 }; 1123 1124 struct nfs41_free_stateid_res { 1125 unsigned int status; 1126 struct nfs4_sequence_res seq_res; 1127 }; 1128 1129 #endif /* CONFIG_NFS_V4_1 */ 1130 1131 struct nfs_page; 1132 1133 #define NFS_PAGEVEC_SIZE (8U) 1134 1135 struct nfs_read_data { 1136 struct rpc_task task; 1137 struct inode *inode; 1138 struct rpc_cred *cred; 1139 struct nfs_fattr fattr; /* fattr storage */ 1140 struct list_head pages; /* Coalesced read requests */ 1141 struct list_head list; /* lists of struct nfs_read_data */ 1142 struct nfs_page *req; /* multi ops per nfs_page */ 1143 struct page **pagevec; 1144 unsigned int npages; /* Max length of pagevec */ 1145 struct nfs_readargs args; 1146 struct nfs_readres res; 1147 unsigned long timestamp; /* For lease renewal */ 1148 struct pnfs_layout_segment *lseg; 1149 struct nfs_client *ds_clp; /* pNFS data server */ 1150 const struct rpc_call_ops *mds_ops; 1151 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data); 1152 __u64 mds_offset; 1153 int pnfs_error; 1154 struct page *page_array[NFS_PAGEVEC_SIZE]; 1155 }; 1156 1157 struct nfs_write_data { 1158 struct rpc_task task; 1159 struct inode *inode; 1160 struct rpc_cred *cred; 1161 struct nfs_fattr fattr; 1162 struct nfs_writeverf verf; 1163 struct list_head pages; /* Coalesced requests we wish to flush */ 1164 struct list_head list; /* lists of struct nfs_write_data */ 1165 struct nfs_page *req; /* multi ops per nfs_page */ 1166 struct page **pagevec; 1167 unsigned int npages; /* Max length of pagevec */ 1168 struct nfs_writeargs args; /* argument struct */ 1169 struct nfs_writeres res; /* result struct */ 1170 struct pnfs_layout_segment *lseg; 1171 struct nfs_client *ds_clp; /* pNFS data server */ 1172 int ds_commit_index; 1173 const struct rpc_call_ops *mds_ops; 1174 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data); 1175 #ifdef CONFIG_NFS_V4 1176 unsigned long timestamp; /* For lease renewal */ 1177 #endif 1178 __u64 mds_offset; /* Filelayout dense stripe */ 1179 int pnfs_error; 1180 struct page *page_array[NFS_PAGEVEC_SIZE]; 1181 }; 1182 1183 struct nfs_access_entry; 1184 struct nfs_client; 1185 struct rpc_timeout; 1186 1187 /* 1188 * RPC procedure vector for NFSv2/NFSv3 demuxing 1189 */ 1190 struct nfs_rpc_ops { 1191 u32 version; /* Protocol version */ 1192 const struct dentry_operations *dentry_ops; 1193 const struct inode_operations *dir_inode_ops; 1194 const struct inode_operations *file_inode_ops; 1195 1196 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1197 struct nfs_fsinfo *); 1198 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1199 struct nfs_fattr *); 1200 int (*setattr) (struct dentry *, struct nfs_fattr *, 1201 struct iattr *); 1202 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *, 1203 struct nfs_fh *, struct nfs_fattr *); 1204 int (*access) (struct inode *, struct nfs_access_entry *); 1205 int (*readlink)(struct inode *, struct page *, unsigned int, 1206 unsigned int); 1207 int (*create) (struct inode *, struct dentry *, 1208 struct iattr *, int, struct nfs_open_context *); 1209 int (*remove) (struct inode *, struct qstr *); 1210 void (*unlink_setup) (struct rpc_message *, struct inode *dir); 1211 int (*unlink_done) (struct rpc_task *, struct inode *); 1212 int (*rename) (struct inode *, struct qstr *, 1213 struct inode *, struct qstr *); 1214 void (*rename_setup) (struct rpc_message *msg, struct inode *dir); 1215 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1216 int (*link) (struct inode *, struct inode *, struct qstr *); 1217 int (*symlink) (struct inode *, struct dentry *, struct page *, 1218 unsigned int, struct iattr *); 1219 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1220 int (*rmdir) (struct inode *, struct qstr *); 1221 int (*readdir) (struct dentry *, struct rpc_cred *, 1222 u64, struct page **, unsigned int, int); 1223 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1224 dev_t); 1225 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1226 struct nfs_fsstat *); 1227 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1228 struct nfs_fsinfo *); 1229 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1230 struct nfs_pathconf *); 1231 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1232 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int); 1233 void (*read_setup) (struct nfs_read_data *, struct rpc_message *); 1234 int (*read_done) (struct rpc_task *, struct nfs_read_data *); 1235 void (*write_setup) (struct nfs_write_data *, struct rpc_message *); 1236 int (*write_done) (struct rpc_task *, struct nfs_write_data *); 1237 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *); 1238 int (*commit_done) (struct rpc_task *, struct nfs_write_data *); 1239 int (*lock)(struct file *, int, struct file_lock *); 1240 int (*lock_check_bounds)(const struct file_lock *); 1241 void (*clear_acl_cache)(struct inode *); 1242 void (*close_context)(struct nfs_open_context *ctx, int); 1243 struct inode * (*open_context) (struct inode *dir, 1244 struct nfs_open_context *ctx, 1245 int open_flags, 1246 struct iattr *iattr); 1247 int (*init_client) (struct nfs_client *, const struct rpc_timeout *, 1248 const char *, rpc_authflavor_t, int); 1249 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); 1250 }; 1251 1252 /* 1253 * NFS_CALL(getattr, inode, (fattr)); 1254 * into 1255 * NFS_PROTO(inode)->getattr(fattr); 1256 */ 1257 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1258 1259 /* 1260 * Function vectors etc. for the NFS client 1261 */ 1262 extern const struct nfs_rpc_ops nfs_v2_clientops; 1263 extern const struct nfs_rpc_ops nfs_v3_clientops; 1264 extern const struct nfs_rpc_ops nfs_v4_clientops; 1265 extern struct rpc_version nfs_version2; 1266 extern struct rpc_version nfs_version3; 1267 extern struct rpc_version nfs_version4; 1268 1269 extern struct rpc_version nfsacl_version3; 1270 extern struct rpc_program nfsacl_program; 1271 1272 #endif 1273