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