1 /* 2 * Process version 3 NFS requests. 3 * 4 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de> 5 */ 6 7 #include <linux/fs.h> 8 #include <linux/ext2_fs.h> 9 #include <linux/magic.h> 10 11 #include "cache.h" 12 #include "xdr3.h" 13 #include "vfs.h" 14 15 #define NFSDDBG_FACILITY NFSDDBG_PROC 16 17 #define RETURN_STATUS(st) { resp->status = (st); return (st); } 18 19 static int nfs3_ftypes[] = { 20 0, /* NF3NON */ 21 S_IFREG, /* NF3REG */ 22 S_IFDIR, /* NF3DIR */ 23 S_IFBLK, /* NF3BLK */ 24 S_IFCHR, /* NF3CHR */ 25 S_IFLNK, /* NF3LNK */ 26 S_IFSOCK, /* NF3SOCK */ 27 S_IFIFO, /* NF3FIFO */ 28 }; 29 30 /* 31 * NULL call. 32 */ 33 static __be32 34 nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) 35 { 36 return nfs_ok; 37 } 38 39 /* 40 * Get a file's attributes 41 */ 42 static __be32 43 nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp, 44 struct nfsd3_attrstat *resp) 45 { 46 __be32 nfserr; 47 48 dprintk("nfsd: GETATTR(3) %s\n", 49 SVCFH_fmt(&argp->fh)); 50 51 fh_copy(&resp->fh, &argp->fh); 52 nfserr = fh_verify(rqstp, &resp->fh, 0, 53 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT); 54 if (nfserr) 55 RETURN_STATUS(nfserr); 56 57 nfserr = fh_getattr(&resp->fh, &resp->stat); 58 59 RETURN_STATUS(nfserr); 60 } 61 62 /* 63 * Set a file's attributes 64 */ 65 static __be32 66 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp, 67 struct nfsd3_attrstat *resp) 68 { 69 __be32 nfserr; 70 71 dprintk("nfsd: SETATTR(3) %s\n", 72 SVCFH_fmt(&argp->fh)); 73 74 fh_copy(&resp->fh, &argp->fh); 75 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs, 76 argp->check_guard, argp->guardtime); 77 RETURN_STATUS(nfserr); 78 } 79 80 /* 81 * Look up a path name component 82 */ 83 static __be32 84 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 85 struct nfsd3_diropres *resp) 86 { 87 __be32 nfserr; 88 89 dprintk("nfsd: LOOKUP(3) %s %.*s\n", 90 SVCFH_fmt(&argp->fh), 91 argp->len, 92 argp->name); 93 94 fh_copy(&resp->dirfh, &argp->fh); 95 fh_init(&resp->fh, NFS3_FHSIZE); 96 97 nfserr = nfsd_lookup(rqstp, &resp->dirfh, 98 argp->name, 99 argp->len, 100 &resp->fh); 101 RETURN_STATUS(nfserr); 102 } 103 104 /* 105 * Check file access 106 */ 107 static __be32 108 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp, 109 struct nfsd3_accessres *resp) 110 { 111 __be32 nfserr; 112 113 dprintk("nfsd: ACCESS(3) %s 0x%x\n", 114 SVCFH_fmt(&argp->fh), 115 argp->access); 116 117 fh_copy(&resp->fh, &argp->fh); 118 resp->access = argp->access; 119 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL); 120 RETURN_STATUS(nfserr); 121 } 122 123 /* 124 * Read a symlink. 125 */ 126 static __be32 127 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp, 128 struct nfsd3_readlinkres *resp) 129 { 130 __be32 nfserr; 131 132 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh)); 133 134 /* Read the symlink. */ 135 fh_copy(&resp->fh, &argp->fh); 136 resp->len = NFS3_MAXPATHLEN; 137 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len); 138 RETURN_STATUS(nfserr); 139 } 140 141 /* 142 * Read a portion of a file. 143 */ 144 static __be32 145 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp, 146 struct nfsd3_readres *resp) 147 { 148 __be32 nfserr; 149 u32 max_blocksize = svc_max_payload(rqstp); 150 151 dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n", 152 SVCFH_fmt(&argp->fh), 153 (unsigned long) argp->count, 154 (unsigned long long) argp->offset); 155 156 /* Obtain buffer pointer for payload. 157 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof) 158 * + 1 (xdr opaque byte count) = 26 159 */ 160 resp->count = min(argp->count, max_blocksize); 161 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4); 162 163 fh_copy(&resp->fh, &argp->fh); 164 nfserr = nfsd_read(rqstp, &resp->fh, 165 argp->offset, 166 rqstp->rq_vec, argp->vlen, 167 &resp->count); 168 if (nfserr == 0) { 169 struct inode *inode = resp->fh.fh_dentry->d_inode; 170 171 resp->eof = (argp->offset + resp->count) >= inode->i_size; 172 } 173 174 RETURN_STATUS(nfserr); 175 } 176 177 /* 178 * Write data to a file 179 */ 180 static __be32 181 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp, 182 struct nfsd3_writeres *resp) 183 { 184 __be32 nfserr; 185 unsigned long cnt = argp->len; 186 187 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n", 188 SVCFH_fmt(&argp->fh), 189 argp->len, 190 (unsigned long long) argp->offset, 191 argp->stable? " stable" : ""); 192 193 fh_copy(&resp->fh, &argp->fh); 194 resp->committed = argp->stable; 195 nfserr = nfsd_write(rqstp, &resp->fh, NULL, 196 argp->offset, 197 rqstp->rq_vec, argp->vlen, 198 &cnt, 199 &resp->committed); 200 resp->count = cnt; 201 RETURN_STATUS(nfserr); 202 } 203 204 /* 205 * With NFSv3, CREATE processing is a lot easier than with NFSv2. 206 * At least in theory; we'll see how it fares in practice when the 207 * first reports about SunOS compatibility problems start to pour in... 208 */ 209 static __be32 210 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, 211 struct nfsd3_diropres *resp) 212 { 213 svc_fh *dirfhp, *newfhp = NULL; 214 struct iattr *attr; 215 __be32 nfserr; 216 217 dprintk("nfsd: CREATE(3) %s %.*s\n", 218 SVCFH_fmt(&argp->fh), 219 argp->len, 220 argp->name); 221 222 dirfhp = fh_copy(&resp->dirfh, &argp->fh); 223 newfhp = fh_init(&resp->fh, NFS3_FHSIZE); 224 attr = &argp->attrs; 225 226 /* Unfudge the mode bits */ 227 attr->ia_mode &= ~S_IFMT; 228 if (!(attr->ia_valid & ATTR_MODE)) { 229 attr->ia_valid |= ATTR_MODE; 230 attr->ia_mode = S_IFREG; 231 } else { 232 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG; 233 } 234 235 /* Now create the file and set attributes */ 236 nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len, 237 attr, newfhp, 238 argp->createmode, (u32 *)argp->verf, NULL, NULL); 239 240 RETURN_STATUS(nfserr); 241 } 242 243 /* 244 * Make directory. This operation is not idempotent. 245 */ 246 static __be32 247 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, 248 struct nfsd3_diropres *resp) 249 { 250 __be32 nfserr; 251 252 dprintk("nfsd: MKDIR(3) %s %.*s\n", 253 SVCFH_fmt(&argp->fh), 254 argp->len, 255 argp->name); 256 257 argp->attrs.ia_valid &= ~ATTR_SIZE; 258 fh_copy(&resp->dirfh, &argp->fh); 259 fh_init(&resp->fh, NFS3_FHSIZE); 260 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len, 261 &argp->attrs, S_IFDIR, 0, &resp->fh); 262 fh_unlock(&resp->dirfh); 263 RETURN_STATUS(nfserr); 264 } 265 266 static __be32 267 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp, 268 struct nfsd3_diropres *resp) 269 { 270 __be32 nfserr; 271 272 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n", 273 SVCFH_fmt(&argp->ffh), 274 argp->flen, argp->fname, 275 argp->tlen, argp->tname); 276 277 fh_copy(&resp->dirfh, &argp->ffh); 278 fh_init(&resp->fh, NFS3_FHSIZE); 279 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen, 280 argp->tname, &resp->fh); 281 RETURN_STATUS(nfserr); 282 } 283 284 /* 285 * Make socket/fifo/device. 286 */ 287 static __be32 288 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp, 289 struct nfsd3_diropres *resp) 290 { 291 __be32 nfserr; 292 int type; 293 dev_t rdev = 0; 294 295 dprintk("nfsd: MKNOD(3) %s %.*s\n", 296 SVCFH_fmt(&argp->fh), 297 argp->len, 298 argp->name); 299 300 fh_copy(&resp->dirfh, &argp->fh); 301 fh_init(&resp->fh, NFS3_FHSIZE); 302 303 if (argp->ftype == 0 || argp->ftype >= NF3BAD) 304 RETURN_STATUS(nfserr_inval); 305 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) { 306 rdev = MKDEV(argp->major, argp->minor); 307 if (MAJOR(rdev) != argp->major || 308 MINOR(rdev) != argp->minor) 309 RETURN_STATUS(nfserr_inval); 310 } else 311 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) 312 RETURN_STATUS(nfserr_inval); 313 314 type = nfs3_ftypes[argp->ftype]; 315 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len, 316 &argp->attrs, type, rdev, &resp->fh); 317 fh_unlock(&resp->dirfh); 318 RETURN_STATUS(nfserr); 319 } 320 321 /* 322 * Remove file/fifo/socket etc. 323 */ 324 static __be32 325 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 326 struct nfsd3_attrstat *resp) 327 { 328 __be32 nfserr; 329 330 dprintk("nfsd: REMOVE(3) %s %.*s\n", 331 SVCFH_fmt(&argp->fh), 332 argp->len, 333 argp->name); 334 335 /* Unlink. -S_IFDIR means file must not be a directory */ 336 fh_copy(&resp->fh, &argp->fh); 337 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len); 338 fh_unlock(&resp->fh); 339 RETURN_STATUS(nfserr); 340 } 341 342 /* 343 * Remove a directory 344 */ 345 static __be32 346 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 347 struct nfsd3_attrstat *resp) 348 { 349 __be32 nfserr; 350 351 dprintk("nfsd: RMDIR(3) %s %.*s\n", 352 SVCFH_fmt(&argp->fh), 353 argp->len, 354 argp->name); 355 356 fh_copy(&resp->fh, &argp->fh); 357 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len); 358 fh_unlock(&resp->fh); 359 RETURN_STATUS(nfserr); 360 } 361 362 static __be32 363 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp, 364 struct nfsd3_renameres *resp) 365 { 366 __be32 nfserr; 367 368 dprintk("nfsd: RENAME(3) %s %.*s ->\n", 369 SVCFH_fmt(&argp->ffh), 370 argp->flen, 371 argp->fname); 372 dprintk("nfsd: -> %s %.*s\n", 373 SVCFH_fmt(&argp->tfh), 374 argp->tlen, 375 argp->tname); 376 377 fh_copy(&resp->ffh, &argp->ffh); 378 fh_copy(&resp->tfh, &argp->tfh); 379 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen, 380 &resp->tfh, argp->tname, argp->tlen); 381 RETURN_STATUS(nfserr); 382 } 383 384 static __be32 385 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp, 386 struct nfsd3_linkres *resp) 387 { 388 __be32 nfserr; 389 390 dprintk("nfsd: LINK(3) %s ->\n", 391 SVCFH_fmt(&argp->ffh)); 392 dprintk("nfsd: -> %s %.*s\n", 393 SVCFH_fmt(&argp->tfh), 394 argp->tlen, 395 argp->tname); 396 397 fh_copy(&resp->fh, &argp->ffh); 398 fh_copy(&resp->tfh, &argp->tfh); 399 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen, 400 &resp->fh); 401 RETURN_STATUS(nfserr); 402 } 403 404 /* 405 * Read a portion of a directory. 406 */ 407 static __be32 408 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, 409 struct nfsd3_readdirres *resp) 410 { 411 __be32 nfserr; 412 int count; 413 414 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n", 415 SVCFH_fmt(&argp->fh), 416 argp->count, (u32) argp->cookie); 417 418 /* Make sure we've room for the NULL ptr & eof flag, and shrink to 419 * client read size */ 420 count = (argp->count >> 2) - 2; 421 422 /* Read directory and encode entries on the fly */ 423 fh_copy(&resp->fh, &argp->fh); 424 425 resp->buflen = count; 426 resp->common.err = nfs_ok; 427 resp->buffer = argp->buffer; 428 resp->rqstp = rqstp; 429 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie, 430 &resp->common, nfs3svc_encode_entry); 431 memcpy(resp->verf, argp->verf, 8); 432 resp->count = resp->buffer - argp->buffer; 433 if (resp->offset) 434 xdr_encode_hyper(resp->offset, argp->cookie); 435 436 RETURN_STATUS(nfserr); 437 } 438 439 /* 440 * Read a portion of a directory, including file handles and attrs. 441 * For now, we choose to ignore the dircount parameter. 442 */ 443 static __be32 444 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, 445 struct nfsd3_readdirres *resp) 446 { 447 __be32 nfserr; 448 int count = 0; 449 loff_t offset; 450 struct page **p; 451 caddr_t page_addr = NULL; 452 453 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n", 454 SVCFH_fmt(&argp->fh), 455 argp->count, (u32) argp->cookie); 456 457 /* Convert byte count to number of words (i.e. >> 2), 458 * and reserve room for the NULL ptr & eof flag (-2 words) */ 459 resp->count = (argp->count >> 2) - 2; 460 461 /* Read directory and encode entries on the fly */ 462 fh_copy(&resp->fh, &argp->fh); 463 464 resp->common.err = nfs_ok; 465 resp->buffer = argp->buffer; 466 resp->buflen = resp->count; 467 resp->rqstp = rqstp; 468 offset = argp->cookie; 469 470 nfserr = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP); 471 if (nfserr) 472 RETURN_STATUS(nfserr); 473 474 if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) 475 RETURN_STATUS(nfserr_notsupp); 476 477 nfserr = nfsd_readdir(rqstp, &resp->fh, 478 &offset, 479 &resp->common, 480 nfs3svc_encode_entry_plus); 481 memcpy(resp->verf, argp->verf, 8); 482 for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) { 483 page_addr = page_address(*p); 484 485 if (((caddr_t)resp->buffer >= page_addr) && 486 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) { 487 count += (caddr_t)resp->buffer - page_addr; 488 break; 489 } 490 count += PAGE_SIZE; 491 } 492 resp->count = count >> 2; 493 if (resp->offset) { 494 if (unlikely(resp->offset1)) { 495 /* we ended up with offset on a page boundary */ 496 *resp->offset = htonl(offset >> 32); 497 *resp->offset1 = htonl(offset & 0xffffffff); 498 resp->offset1 = NULL; 499 } else { 500 xdr_encode_hyper(resp->offset, offset); 501 } 502 } 503 504 RETURN_STATUS(nfserr); 505 } 506 507 /* 508 * Get file system stats 509 */ 510 static __be32 511 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 512 struct nfsd3_fsstatres *resp) 513 { 514 __be32 nfserr; 515 516 dprintk("nfsd: FSSTAT(3) %s\n", 517 SVCFH_fmt(&argp->fh)); 518 519 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0); 520 fh_put(&argp->fh); 521 RETURN_STATUS(nfserr); 522 } 523 524 /* 525 * Get file system info 526 */ 527 static __be32 528 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 529 struct nfsd3_fsinfores *resp) 530 { 531 __be32 nfserr; 532 u32 max_blocksize = svc_max_payload(rqstp); 533 534 dprintk("nfsd: FSINFO(3) %s\n", 535 SVCFH_fmt(&argp->fh)); 536 537 resp->f_rtmax = max_blocksize; 538 resp->f_rtpref = max_blocksize; 539 resp->f_rtmult = PAGE_SIZE; 540 resp->f_wtmax = max_blocksize; 541 resp->f_wtpref = max_blocksize; 542 resp->f_wtmult = PAGE_SIZE; 543 resp->f_dtpref = PAGE_SIZE; 544 resp->f_maxfilesize = ~(u32) 0; 545 resp->f_properties = NFS3_FSF_DEFAULT; 546 547 nfserr = fh_verify(rqstp, &argp->fh, 0, 548 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT); 549 550 /* Check special features of the file system. May request 551 * different read/write sizes for file systems known to have 552 * problems with large blocks */ 553 if (nfserr == 0) { 554 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb; 555 556 /* Note that we don't care for remote fs's here */ 557 if (sb->s_magic == MSDOS_SUPER_MAGIC) { 558 resp->f_properties = NFS3_FSF_BILLYBOY; 559 } 560 resp->f_maxfilesize = sb->s_maxbytes; 561 } 562 563 fh_put(&argp->fh); 564 RETURN_STATUS(nfserr); 565 } 566 567 /* 568 * Get pathconf info for the specified file 569 */ 570 static __be32 571 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 572 struct nfsd3_pathconfres *resp) 573 { 574 __be32 nfserr; 575 576 dprintk("nfsd: PATHCONF(3) %s\n", 577 SVCFH_fmt(&argp->fh)); 578 579 /* Set default pathconf */ 580 resp->p_link_max = 255; /* at least */ 581 resp->p_name_max = 255; /* at least */ 582 resp->p_no_trunc = 0; 583 resp->p_chown_restricted = 1; 584 resp->p_case_insensitive = 0; 585 resp->p_case_preserving = 1; 586 587 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP); 588 589 if (nfserr == 0) { 590 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb; 591 592 /* Note that we don't care for remote fs's here */ 593 switch (sb->s_magic) { 594 case EXT2_SUPER_MAGIC: 595 resp->p_link_max = EXT2_LINK_MAX; 596 resp->p_name_max = EXT2_NAME_LEN; 597 break; 598 case MSDOS_SUPER_MAGIC: 599 resp->p_case_insensitive = 1; 600 resp->p_case_preserving = 0; 601 break; 602 } 603 } 604 605 fh_put(&argp->fh); 606 RETURN_STATUS(nfserr); 607 } 608 609 610 /* 611 * Commit a file (range) to stable storage. 612 */ 613 static __be32 614 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp, 615 struct nfsd3_commitres *resp) 616 { 617 __be32 nfserr; 618 619 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n", 620 SVCFH_fmt(&argp->fh), 621 argp->count, 622 (unsigned long long) argp->offset); 623 624 if (argp->offset > NFS_OFFSET_MAX) 625 RETURN_STATUS(nfserr_inval); 626 627 fh_copy(&resp->fh, &argp->fh); 628 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count); 629 630 RETURN_STATUS(nfserr); 631 } 632 633 634 /* 635 * NFSv3 Server procedures. 636 * Only the results of non-idempotent operations are cached. 637 */ 638 #define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle 639 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat 640 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat 641 #define nfsd3_mkdirargs nfsd3_createargs 642 #define nfsd3_readdirplusargs nfsd3_readdirargs 643 #define nfsd3_fhandleargs nfsd_fhandle 644 #define nfsd3_fhandleres nfsd3_attrstat 645 #define nfsd3_attrstatres nfsd3_attrstat 646 #define nfsd3_wccstatres nfsd3_attrstat 647 #define nfsd3_createres nfsd3_diropres 648 #define nfsd3_voidres nfsd3_voidargs 649 struct nfsd3_voidargs { int dummy; }; 650 651 #define PROC(name, argt, rest, relt, cache, respsize) \ 652 { (svc_procfunc) nfsd3_proc_##name, \ 653 (kxdrproc_t) nfs3svc_decode_##argt##args, \ 654 (kxdrproc_t) nfs3svc_encode_##rest##res, \ 655 (kxdrproc_t) nfs3svc_release_##relt, \ 656 sizeof(struct nfsd3_##argt##args), \ 657 sizeof(struct nfsd3_##rest##res), \ 658 0, \ 659 cache, \ 660 respsize, \ 661 } 662 663 #define ST 1 /* status*/ 664 #define FH 17 /* filehandle with length */ 665 #define AT 21 /* attributes */ 666 #define pAT (1+AT) /* post attributes - conditional */ 667 #define WC (7+pAT) /* WCC attributes */ 668 669 static struct svc_procedure nfsd_procedures3[22] = { 670 [NFS3PROC_NULL] = { 671 .pc_func = (svc_procfunc) nfsd3_proc_null, 672 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres, 673 .pc_argsize = sizeof(struct nfsd3_voidargs), 674 .pc_ressize = sizeof(struct nfsd3_voidres), 675 .pc_cachetype = RC_NOCACHE, 676 .pc_xdrressize = ST, 677 }, 678 [NFS3PROC_GETATTR] = { 679 .pc_func = (svc_procfunc) nfsd3_proc_getattr, 680 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 681 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres, 682 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 683 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 684 .pc_ressize = sizeof(struct nfsd3_attrstatres), 685 .pc_cachetype = RC_NOCACHE, 686 .pc_xdrressize = ST+AT, 687 }, 688 [NFS3PROC_SETATTR] = { 689 .pc_func = (svc_procfunc) nfsd3_proc_setattr, 690 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs, 691 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres, 692 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 693 .pc_argsize = sizeof(struct nfsd3_sattrargs), 694 .pc_ressize = sizeof(struct nfsd3_wccstatres), 695 .pc_cachetype = RC_REPLBUFF, 696 .pc_xdrressize = ST+WC, 697 }, 698 [NFS3PROC_LOOKUP] = { 699 .pc_func = (svc_procfunc) nfsd3_proc_lookup, 700 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs, 701 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres, 702 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 703 .pc_argsize = sizeof(struct nfsd3_diropargs), 704 .pc_ressize = sizeof(struct nfsd3_diropres), 705 .pc_cachetype = RC_NOCACHE, 706 .pc_xdrressize = ST+FH+pAT+pAT, 707 }, 708 [NFS3PROC_ACCESS] = { 709 .pc_func = (svc_procfunc) nfsd3_proc_access, 710 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs, 711 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres, 712 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 713 .pc_argsize = sizeof(struct nfsd3_accessargs), 714 .pc_ressize = sizeof(struct nfsd3_accessres), 715 .pc_cachetype = RC_NOCACHE, 716 .pc_xdrressize = ST+pAT+1, 717 }, 718 [NFS3PROC_READLINK] = { 719 .pc_func = (svc_procfunc) nfsd3_proc_readlink, 720 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs, 721 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres, 722 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 723 .pc_argsize = sizeof(struct nfsd3_readlinkargs), 724 .pc_ressize = sizeof(struct nfsd3_readlinkres), 725 .pc_cachetype = RC_NOCACHE, 726 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4, 727 }, 728 [NFS3PROC_READ] = { 729 .pc_func = (svc_procfunc) nfsd3_proc_read, 730 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs, 731 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres, 732 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 733 .pc_argsize = sizeof(struct nfsd3_readargs), 734 .pc_ressize = sizeof(struct nfsd3_readres), 735 .pc_cachetype = RC_NOCACHE, 736 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4, 737 }, 738 [NFS3PROC_WRITE] = { 739 .pc_func = (svc_procfunc) nfsd3_proc_write, 740 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs, 741 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres, 742 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 743 .pc_argsize = sizeof(struct nfsd3_writeargs), 744 .pc_ressize = sizeof(struct nfsd3_writeres), 745 .pc_cachetype = RC_REPLBUFF, 746 .pc_xdrressize = ST+WC+4, 747 }, 748 [NFS3PROC_CREATE] = { 749 .pc_func = (svc_procfunc) nfsd3_proc_create, 750 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs, 751 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 752 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 753 .pc_argsize = sizeof(struct nfsd3_createargs), 754 .pc_ressize = sizeof(struct nfsd3_createres), 755 .pc_cachetype = RC_REPLBUFF, 756 .pc_xdrressize = ST+(1+FH+pAT)+WC, 757 }, 758 [NFS3PROC_MKDIR] = { 759 .pc_func = (svc_procfunc) nfsd3_proc_mkdir, 760 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs, 761 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 762 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 763 .pc_argsize = sizeof(struct nfsd3_mkdirargs), 764 .pc_ressize = sizeof(struct nfsd3_createres), 765 .pc_cachetype = RC_REPLBUFF, 766 .pc_xdrressize = ST+(1+FH+pAT)+WC, 767 }, 768 [NFS3PROC_SYMLINK] = { 769 .pc_func = (svc_procfunc) nfsd3_proc_symlink, 770 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs, 771 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 772 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 773 .pc_argsize = sizeof(struct nfsd3_symlinkargs), 774 .pc_ressize = sizeof(struct nfsd3_createres), 775 .pc_cachetype = RC_REPLBUFF, 776 .pc_xdrressize = ST+(1+FH+pAT)+WC, 777 }, 778 [NFS3PROC_MKNOD] = { 779 .pc_func = (svc_procfunc) nfsd3_proc_mknod, 780 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs, 781 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 782 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 783 .pc_argsize = sizeof(struct nfsd3_mknodargs), 784 .pc_ressize = sizeof(struct nfsd3_createres), 785 .pc_cachetype = RC_REPLBUFF, 786 .pc_xdrressize = ST+(1+FH+pAT)+WC, 787 }, 788 [NFS3PROC_REMOVE] = { 789 .pc_func = (svc_procfunc) nfsd3_proc_remove, 790 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs, 791 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres, 792 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 793 .pc_argsize = sizeof(struct nfsd3_diropargs), 794 .pc_ressize = sizeof(struct nfsd3_wccstatres), 795 .pc_cachetype = RC_REPLBUFF, 796 .pc_xdrressize = ST+WC, 797 }, 798 [NFS3PROC_RMDIR] = { 799 .pc_func = (svc_procfunc) nfsd3_proc_rmdir, 800 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs, 801 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres, 802 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 803 .pc_argsize = sizeof(struct nfsd3_diropargs), 804 .pc_ressize = sizeof(struct nfsd3_wccstatres), 805 .pc_cachetype = RC_REPLBUFF, 806 .pc_xdrressize = ST+WC, 807 }, 808 [NFS3PROC_RENAME] = { 809 .pc_func = (svc_procfunc) nfsd3_proc_rename, 810 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs, 811 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres, 812 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 813 .pc_argsize = sizeof(struct nfsd3_renameargs), 814 .pc_ressize = sizeof(struct nfsd3_renameres), 815 .pc_cachetype = RC_REPLBUFF, 816 .pc_xdrressize = ST+WC+WC, 817 }, 818 [NFS3PROC_LINK] = { 819 .pc_func = (svc_procfunc) nfsd3_proc_link, 820 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs, 821 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres, 822 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 823 .pc_argsize = sizeof(struct nfsd3_linkargs), 824 .pc_ressize = sizeof(struct nfsd3_linkres), 825 .pc_cachetype = RC_REPLBUFF, 826 .pc_xdrressize = ST+pAT+WC, 827 }, 828 [NFS3PROC_READDIR] = { 829 .pc_func = (svc_procfunc) nfsd3_proc_readdir, 830 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs, 831 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres, 832 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 833 .pc_argsize = sizeof(struct nfsd3_readdirargs), 834 .pc_ressize = sizeof(struct nfsd3_readdirres), 835 .pc_cachetype = RC_NOCACHE, 836 }, 837 [NFS3PROC_READDIRPLUS] = { 838 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus, 839 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs, 840 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres, 841 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 842 .pc_argsize = sizeof(struct nfsd3_readdirplusargs), 843 .pc_ressize = sizeof(struct nfsd3_readdirres), 844 .pc_cachetype = RC_NOCACHE, 845 }, 846 [NFS3PROC_FSSTAT] = { 847 .pc_func = (svc_procfunc) nfsd3_proc_fsstat, 848 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 849 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres, 850 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 851 .pc_ressize = sizeof(struct nfsd3_fsstatres), 852 .pc_cachetype = RC_NOCACHE, 853 .pc_xdrressize = ST+pAT+2*6+1, 854 }, 855 [NFS3PROC_FSINFO] = { 856 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo, 857 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 858 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores, 859 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 860 .pc_ressize = sizeof(struct nfsd3_fsinfores), 861 .pc_cachetype = RC_NOCACHE, 862 .pc_xdrressize = ST+pAT+12, 863 }, 864 [NFS3PROC_PATHCONF] = { 865 .pc_func = (svc_procfunc) nfsd3_proc_pathconf, 866 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 867 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres, 868 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 869 .pc_ressize = sizeof(struct nfsd3_pathconfres), 870 .pc_cachetype = RC_NOCACHE, 871 .pc_xdrressize = ST+pAT+6, 872 }, 873 [NFS3PROC_COMMIT] = { 874 .pc_func = (svc_procfunc) nfsd3_proc_commit, 875 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs, 876 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres, 877 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 878 .pc_argsize = sizeof(struct nfsd3_commitargs), 879 .pc_ressize = sizeof(struct nfsd3_commitres), 880 .pc_cachetype = RC_NOCACHE, 881 .pc_xdrressize = ST+WC+2, 882 }, 883 }; 884 885 struct svc_version nfsd_version3 = { 886 .vs_vers = 3, 887 .vs_nproc = 22, 888 .vs_proc = nfsd_procedures3, 889 .vs_dispatch = nfsd_dispatch, 890 .vs_xdrsize = NFS3_SVC_XDRSIZE, 891 }; 892