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