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