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 int err; 47 __be32 nfserr; 48 49 dprintk("nfsd: GETATTR(3) %s\n", 50 SVCFH_fmt(&argp->fh)); 51 52 fh_copy(&resp->fh, &argp->fh); 53 nfserr = fh_verify(rqstp, &resp->fh, 0, 54 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT); 55 if (nfserr) 56 RETURN_STATUS(nfserr); 57 58 err = vfs_getattr(resp->fh.fh_export->ex_path.mnt, 59 resp->fh.fh_dentry, &resp->stat); 60 nfserr = nfserrno(err); 61 62 RETURN_STATUS(nfserr); 63 } 64 65 /* 66 * Set a file's attributes 67 */ 68 static __be32 69 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp, 70 struct nfsd3_attrstat *resp) 71 { 72 __be32 nfserr; 73 74 dprintk("nfsd: SETATTR(3) %s\n", 75 SVCFH_fmt(&argp->fh)); 76 77 fh_copy(&resp->fh, &argp->fh); 78 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs, 79 argp->check_guard, argp->guardtime); 80 RETURN_STATUS(nfserr); 81 } 82 83 /* 84 * Look up a path name component 85 */ 86 static __be32 87 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 88 struct nfsd3_diropres *resp) 89 { 90 __be32 nfserr; 91 92 dprintk("nfsd: LOOKUP(3) %s %.*s\n", 93 SVCFH_fmt(&argp->fh), 94 argp->len, 95 argp->name); 96 97 fh_copy(&resp->dirfh, &argp->fh); 98 fh_init(&resp->fh, NFS3_FHSIZE); 99 100 nfserr = nfsd_lookup(rqstp, &resp->dirfh, 101 argp->name, 102 argp->len, 103 &resp->fh); 104 RETURN_STATUS(nfserr); 105 } 106 107 /* 108 * Check file access 109 */ 110 static __be32 111 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp, 112 struct nfsd3_accessres *resp) 113 { 114 __be32 nfserr; 115 116 dprintk("nfsd: ACCESS(3) %s 0x%x\n", 117 SVCFH_fmt(&argp->fh), 118 argp->access); 119 120 fh_copy(&resp->fh, &argp->fh); 121 resp->access = argp->access; 122 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL); 123 RETURN_STATUS(nfserr); 124 } 125 126 /* 127 * Read a symlink. 128 */ 129 static __be32 130 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp, 131 struct nfsd3_readlinkres *resp) 132 { 133 __be32 nfserr; 134 135 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh)); 136 137 /* Read the symlink. */ 138 fh_copy(&resp->fh, &argp->fh); 139 resp->len = NFS3_MAXPATHLEN; 140 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len); 141 RETURN_STATUS(nfserr); 142 } 143 144 /* 145 * Read a portion of a file. 146 */ 147 static __be32 148 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp, 149 struct nfsd3_readres *resp) 150 { 151 __be32 nfserr; 152 u32 max_blocksize = svc_max_payload(rqstp); 153 154 dprintk("nfsd: READ(3) %s %lu bytes at %lu\n", 155 SVCFH_fmt(&argp->fh), 156 (unsigned long) argp->count, 157 (unsigned long) argp->offset); 158 159 /* Obtain buffer pointer for payload. 160 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof) 161 * + 1 (xdr opaque byte count) = 26 162 */ 163 164 resp->count = argp->count; 165 if (max_blocksize < resp->count) 166 resp->count = max_blocksize; 167 168 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4); 169 170 fh_copy(&resp->fh, &argp->fh); 171 nfserr = nfsd_read(rqstp, &resp->fh, NULL, 172 argp->offset, 173 rqstp->rq_vec, argp->vlen, 174 &resp->count); 175 if (nfserr == 0) { 176 struct inode *inode = resp->fh.fh_dentry->d_inode; 177 178 resp->eof = (argp->offset + resp->count) >= inode->i_size; 179 } 180 181 RETURN_STATUS(nfserr); 182 } 183 184 /* 185 * Write data to a file 186 */ 187 static __be32 188 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp, 189 struct nfsd3_writeres *resp) 190 { 191 __be32 nfserr; 192 unsigned long cnt = argp->len; 193 194 dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n", 195 SVCFH_fmt(&argp->fh), 196 argp->len, 197 (unsigned long) argp->offset, 198 argp->stable? " stable" : ""); 199 200 fh_copy(&resp->fh, &argp->fh); 201 resp->committed = argp->stable; 202 nfserr = nfsd_write(rqstp, &resp->fh, NULL, 203 argp->offset, 204 rqstp->rq_vec, argp->vlen, 205 &cnt, 206 &resp->committed); 207 resp->count = cnt; 208 RETURN_STATUS(nfserr); 209 } 210 211 /* 212 * With NFSv3, CREATE processing is a lot easier than with NFSv2. 213 * At least in theory; we'll see how it fares in practice when the 214 * first reports about SunOS compatibility problems start to pour in... 215 */ 216 static __be32 217 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, 218 struct nfsd3_diropres *resp) 219 { 220 svc_fh *dirfhp, *newfhp = NULL; 221 struct iattr *attr; 222 __be32 nfserr; 223 224 dprintk("nfsd: CREATE(3) %s %.*s\n", 225 SVCFH_fmt(&argp->fh), 226 argp->len, 227 argp->name); 228 229 dirfhp = fh_copy(&resp->dirfh, &argp->fh); 230 newfhp = fh_init(&resp->fh, NFS3_FHSIZE); 231 attr = &argp->attrs; 232 233 /* Get the directory inode */ 234 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE); 235 if (nfserr) 236 RETURN_STATUS(nfserr); 237 238 /* Unfudge the mode bits */ 239 attr->ia_mode &= ~S_IFMT; 240 if (!(attr->ia_valid & ATTR_MODE)) { 241 attr->ia_valid |= ATTR_MODE; 242 attr->ia_mode = S_IFREG; 243 } else { 244 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG; 245 } 246 247 /* Now create the file and set attributes */ 248 nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len, 249 attr, newfhp, 250 argp->createmode, argp->verf, NULL, NULL); 251 252 RETURN_STATUS(nfserr); 253 } 254 255 /* 256 * Make directory. This operation is not idempotent. 257 */ 258 static __be32 259 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, 260 struct nfsd3_diropres *resp) 261 { 262 __be32 nfserr; 263 264 dprintk("nfsd: MKDIR(3) %s %.*s\n", 265 SVCFH_fmt(&argp->fh), 266 argp->len, 267 argp->name); 268 269 argp->attrs.ia_valid &= ~ATTR_SIZE; 270 fh_copy(&resp->dirfh, &argp->fh); 271 fh_init(&resp->fh, NFS3_FHSIZE); 272 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len, 273 &argp->attrs, S_IFDIR, 0, &resp->fh); 274 275 RETURN_STATUS(nfserr); 276 } 277 278 static __be32 279 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp, 280 struct nfsd3_diropres *resp) 281 { 282 __be32 nfserr; 283 284 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n", 285 SVCFH_fmt(&argp->ffh), 286 argp->flen, argp->fname, 287 argp->tlen, argp->tname); 288 289 fh_copy(&resp->dirfh, &argp->ffh); 290 fh_init(&resp->fh, NFS3_FHSIZE); 291 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen, 292 argp->tname, argp->tlen, 293 &resp->fh, &argp->attrs); 294 RETURN_STATUS(nfserr); 295 } 296 297 /* 298 * Make socket/fifo/device. 299 */ 300 static __be32 301 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp, 302 struct nfsd3_diropres *resp) 303 { 304 __be32 nfserr; 305 int type; 306 dev_t rdev = 0; 307 308 dprintk("nfsd: MKNOD(3) %s %.*s\n", 309 SVCFH_fmt(&argp->fh), 310 argp->len, 311 argp->name); 312 313 fh_copy(&resp->dirfh, &argp->fh); 314 fh_init(&resp->fh, NFS3_FHSIZE); 315 316 if (argp->ftype == 0 || argp->ftype >= NF3BAD) 317 RETURN_STATUS(nfserr_inval); 318 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) { 319 rdev = MKDEV(argp->major, argp->minor); 320 if (MAJOR(rdev) != argp->major || 321 MINOR(rdev) != argp->minor) 322 RETURN_STATUS(nfserr_inval); 323 } else 324 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) 325 RETURN_STATUS(nfserr_inval); 326 327 type = nfs3_ftypes[argp->ftype]; 328 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len, 329 &argp->attrs, type, rdev, &resp->fh); 330 331 RETURN_STATUS(nfserr); 332 } 333 334 /* 335 * Remove file/fifo/socket etc. 336 */ 337 static __be32 338 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 339 struct nfsd3_attrstat *resp) 340 { 341 __be32 nfserr; 342 343 dprintk("nfsd: REMOVE(3) %s %.*s\n", 344 SVCFH_fmt(&argp->fh), 345 argp->len, 346 argp->name); 347 348 /* Unlink. -S_IFDIR means file must not be a directory */ 349 fh_copy(&resp->fh, &argp->fh); 350 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len); 351 RETURN_STATUS(nfserr); 352 } 353 354 /* 355 * Remove a directory 356 */ 357 static __be32 358 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 359 struct nfsd3_attrstat *resp) 360 { 361 __be32 nfserr; 362 363 dprintk("nfsd: RMDIR(3) %s %.*s\n", 364 SVCFH_fmt(&argp->fh), 365 argp->len, 366 argp->name); 367 368 fh_copy(&resp->fh, &argp->fh); 369 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len); 370 RETURN_STATUS(nfserr); 371 } 372 373 static __be32 374 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp, 375 struct nfsd3_renameres *resp) 376 { 377 __be32 nfserr; 378 379 dprintk("nfsd: RENAME(3) %s %.*s ->\n", 380 SVCFH_fmt(&argp->ffh), 381 argp->flen, 382 argp->fname); 383 dprintk("nfsd: -> %s %.*s\n", 384 SVCFH_fmt(&argp->tfh), 385 argp->tlen, 386 argp->tname); 387 388 fh_copy(&resp->ffh, &argp->ffh); 389 fh_copy(&resp->tfh, &argp->tfh); 390 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen, 391 &resp->tfh, argp->tname, argp->tlen); 392 RETURN_STATUS(nfserr); 393 } 394 395 static __be32 396 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp, 397 struct nfsd3_linkres *resp) 398 { 399 __be32 nfserr; 400 401 dprintk("nfsd: LINK(3) %s ->\n", 402 SVCFH_fmt(&argp->ffh)); 403 dprintk("nfsd: -> %s %.*s\n", 404 SVCFH_fmt(&argp->tfh), 405 argp->tlen, 406 argp->tname); 407 408 fh_copy(&resp->fh, &argp->ffh); 409 fh_copy(&resp->tfh, &argp->tfh); 410 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen, 411 &resp->fh); 412 RETURN_STATUS(nfserr); 413 } 414 415 /* 416 * Read a portion of a directory. 417 */ 418 static __be32 419 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, 420 struct nfsd3_readdirres *resp) 421 { 422 __be32 nfserr; 423 int count; 424 425 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n", 426 SVCFH_fmt(&argp->fh), 427 argp->count, (u32) argp->cookie); 428 429 /* Make sure we've room for the NULL ptr & eof flag, and shrink to 430 * client read size */ 431 count = (argp->count >> 2) - 2; 432 433 /* Read directory and encode entries on the fly */ 434 fh_copy(&resp->fh, &argp->fh); 435 436 resp->buflen = count; 437 resp->common.err = nfs_ok; 438 resp->buffer = argp->buffer; 439 resp->rqstp = rqstp; 440 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie, 441 &resp->common, nfs3svc_encode_entry); 442 memcpy(resp->verf, argp->verf, 8); 443 resp->count = resp->buffer - argp->buffer; 444 if (resp->offset) 445 xdr_encode_hyper(resp->offset, argp->cookie); 446 447 RETURN_STATUS(nfserr); 448 } 449 450 /* 451 * Read a portion of a directory, including file handles and attrs. 452 * For now, we choose to ignore the dircount parameter. 453 */ 454 static __be32 455 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, 456 struct nfsd3_readdirres *resp) 457 { 458 __be32 nfserr; 459 int count = 0; 460 loff_t offset; 461 int i; 462 caddr_t page_addr = NULL; 463 464 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n", 465 SVCFH_fmt(&argp->fh), 466 argp->count, (u32) argp->cookie); 467 468 /* Convert byte count to number of words (i.e. >> 2), 469 * and reserve room for the NULL ptr & eof flag (-2 words) */ 470 resp->count = (argp->count >> 2) - 2; 471 472 /* Read directory and encode entries on the fly */ 473 fh_copy(&resp->fh, &argp->fh); 474 475 resp->common.err = nfs_ok; 476 resp->buffer = argp->buffer; 477 resp->buflen = resp->count; 478 resp->rqstp = rqstp; 479 offset = argp->cookie; 480 nfserr = nfsd_readdir(rqstp, &resp->fh, 481 &offset, 482 &resp->common, 483 nfs3svc_encode_entry_plus); 484 memcpy(resp->verf, argp->verf, 8); 485 for (i=1; i<rqstp->rq_resused ; i++) { 486 page_addr = page_address(rqstp->rq_respages[i]); 487 488 if (((caddr_t)resp->buffer >= page_addr) && 489 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) { 490 count += (caddr_t)resp->buffer - page_addr; 491 break; 492 } 493 count += PAGE_SIZE; 494 } 495 resp->count = count >> 2; 496 if (resp->offset) { 497 if (unlikely(resp->offset1)) { 498 /* we ended up with offset on a page boundary */ 499 *resp->offset = htonl(offset >> 32); 500 *resp->offset1 = htonl(offset & 0xffffffff); 501 resp->offset1 = NULL; 502 } else { 503 xdr_encode_hyper(resp->offset, offset); 504 } 505 } 506 507 RETURN_STATUS(nfserr); 508 } 509 510 /* 511 * Get file system stats 512 */ 513 static __be32 514 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 515 struct nfsd3_fsstatres *resp) 516 { 517 __be32 nfserr; 518 519 dprintk("nfsd: FSSTAT(3) %s\n", 520 SVCFH_fmt(&argp->fh)); 521 522 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0); 523 fh_put(&argp->fh); 524 RETURN_STATUS(nfserr); 525 } 526 527 /* 528 * Get file system info 529 */ 530 static __be32 531 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 532 struct nfsd3_fsinfores *resp) 533 { 534 __be32 nfserr; 535 u32 max_blocksize = svc_max_payload(rqstp); 536 537 dprintk("nfsd: FSINFO(3) %s\n", 538 SVCFH_fmt(&argp->fh)); 539 540 resp->f_rtmax = max_blocksize; 541 resp->f_rtpref = max_blocksize; 542 resp->f_rtmult = PAGE_SIZE; 543 resp->f_wtmax = max_blocksize; 544 resp->f_wtpref = max_blocksize; 545 resp->f_wtmult = PAGE_SIZE; 546 resp->f_dtpref = PAGE_SIZE; 547 resp->f_maxfilesize = ~(u32) 0; 548 resp->f_properties = NFS3_FSF_DEFAULT; 549 550 nfserr = fh_verify(rqstp, &argp->fh, 0, 551 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT); 552 553 /* Check special features of the file system. May request 554 * different read/write sizes for file systems known to have 555 * problems with large blocks */ 556 if (nfserr == 0) { 557 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb; 558 559 /* Note that we don't care for remote fs's here */ 560 if (sb->s_magic == MSDOS_SUPER_MAGIC) { 561 resp->f_properties = NFS3_FSF_BILLYBOY; 562 } 563 resp->f_maxfilesize = sb->s_maxbytes; 564 } 565 566 fh_put(&argp->fh); 567 RETURN_STATUS(nfserr); 568 } 569 570 /* 571 * Get pathconf info for the specified file 572 */ 573 static __be32 574 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 575 struct nfsd3_pathconfres *resp) 576 { 577 __be32 nfserr; 578 579 dprintk("nfsd: PATHCONF(3) %s\n", 580 SVCFH_fmt(&argp->fh)); 581 582 /* Set default pathconf */ 583 resp->p_link_max = 255; /* at least */ 584 resp->p_name_max = 255; /* at least */ 585 resp->p_no_trunc = 0; 586 resp->p_chown_restricted = 1; 587 resp->p_case_insensitive = 0; 588 resp->p_case_preserving = 1; 589 590 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP); 591 592 if (nfserr == 0) { 593 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb; 594 595 /* Note that we don't care for remote fs's here */ 596 switch (sb->s_magic) { 597 case EXT2_SUPER_MAGIC: 598 resp->p_link_max = EXT2_LINK_MAX; 599 resp->p_name_max = EXT2_NAME_LEN; 600 break; 601 case MSDOS_SUPER_MAGIC: 602 resp->p_case_insensitive = 1; 603 resp->p_case_preserving = 0; 604 break; 605 } 606 } 607 608 fh_put(&argp->fh); 609 RETURN_STATUS(nfserr); 610 } 611 612 613 /* 614 * Commit a file (range) to stable storage. 615 */ 616 static __be32 617 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp, 618 struct nfsd3_commitres *resp) 619 { 620 __be32 nfserr; 621 622 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n", 623 SVCFH_fmt(&argp->fh), 624 argp->count, 625 (unsigned long long) argp->offset); 626 627 if (argp->offset > NFS_OFFSET_MAX) 628 RETURN_STATUS(nfserr_inval); 629 630 fh_copy(&resp->fh, &argp->fh); 631 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count); 632 633 RETURN_STATUS(nfserr); 634 } 635 636 637 /* 638 * NFSv3 Server procedures. 639 * Only the results of non-idempotent operations are cached. 640 */ 641 #define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle 642 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat 643 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat 644 #define nfsd3_mkdirargs nfsd3_createargs 645 #define nfsd3_readdirplusargs nfsd3_readdirargs 646 #define nfsd3_fhandleargs nfsd_fhandle 647 #define nfsd3_fhandleres nfsd3_attrstat 648 #define nfsd3_attrstatres nfsd3_attrstat 649 #define nfsd3_wccstatres nfsd3_attrstat 650 #define nfsd3_createres nfsd3_diropres 651 #define nfsd3_voidres nfsd3_voidargs 652 struct nfsd3_voidargs { int dummy; }; 653 654 #define PROC(name, argt, rest, relt, cache, respsize) \ 655 { (svc_procfunc) nfsd3_proc_##name, \ 656 (kxdrproc_t) nfs3svc_decode_##argt##args, \ 657 (kxdrproc_t) nfs3svc_encode_##rest##res, \ 658 (kxdrproc_t) nfs3svc_release_##relt, \ 659 sizeof(struct nfsd3_##argt##args), \ 660 sizeof(struct nfsd3_##rest##res), \ 661 0, \ 662 cache, \ 663 respsize, \ 664 } 665 666 #define ST 1 /* status*/ 667 #define FH 17 /* filehandle with length */ 668 #define AT 21 /* attributes */ 669 #define pAT (1+AT) /* post attributes - conditional */ 670 #define WC (7+pAT) /* WCC attributes */ 671 672 static struct svc_procedure nfsd_procedures3[22] = { 673 [NFS3PROC_NULL] = { 674 .pc_func = (svc_procfunc) nfsd3_proc_null, 675 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres, 676 .pc_argsize = sizeof(struct nfsd3_voidargs), 677 .pc_ressize = sizeof(struct nfsd3_voidres), 678 .pc_cachetype = RC_NOCACHE, 679 .pc_xdrressize = ST, 680 }, 681 [NFS3PROC_GETATTR] = { 682 .pc_func = (svc_procfunc) nfsd3_proc_getattr, 683 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 684 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres, 685 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 686 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 687 .pc_ressize = sizeof(struct nfsd3_attrstatres), 688 .pc_cachetype = RC_NOCACHE, 689 .pc_xdrressize = ST+AT, 690 }, 691 [NFS3PROC_SETATTR] = { 692 .pc_func = (svc_procfunc) nfsd3_proc_setattr, 693 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs, 694 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres, 695 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 696 .pc_argsize = sizeof(struct nfsd3_sattrargs), 697 .pc_ressize = sizeof(struct nfsd3_wccstatres), 698 .pc_cachetype = RC_REPLBUFF, 699 .pc_xdrressize = ST+WC, 700 }, 701 [NFS3PROC_LOOKUP] = { 702 .pc_func = (svc_procfunc) nfsd3_proc_lookup, 703 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs, 704 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres, 705 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 706 .pc_argsize = sizeof(struct nfsd3_diropargs), 707 .pc_ressize = sizeof(struct nfsd3_diropres), 708 .pc_cachetype = RC_NOCACHE, 709 .pc_xdrressize = ST+FH+pAT+pAT, 710 }, 711 [NFS3PROC_ACCESS] = { 712 .pc_func = (svc_procfunc) nfsd3_proc_access, 713 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs, 714 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres, 715 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 716 .pc_argsize = sizeof(struct nfsd3_accessargs), 717 .pc_ressize = sizeof(struct nfsd3_accessres), 718 .pc_cachetype = RC_NOCACHE, 719 .pc_xdrressize = ST+pAT+1, 720 }, 721 [NFS3PROC_READLINK] = { 722 .pc_func = (svc_procfunc) nfsd3_proc_readlink, 723 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs, 724 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres, 725 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 726 .pc_argsize = sizeof(struct nfsd3_readlinkargs), 727 .pc_ressize = sizeof(struct nfsd3_readlinkres), 728 .pc_cachetype = RC_NOCACHE, 729 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4, 730 }, 731 [NFS3PROC_READ] = { 732 .pc_func = (svc_procfunc) nfsd3_proc_read, 733 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs, 734 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres, 735 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 736 .pc_argsize = sizeof(struct nfsd3_readargs), 737 .pc_ressize = sizeof(struct nfsd3_readres), 738 .pc_cachetype = RC_NOCACHE, 739 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4, 740 }, 741 [NFS3PROC_WRITE] = { 742 .pc_func = (svc_procfunc) nfsd3_proc_write, 743 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs, 744 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres, 745 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 746 .pc_argsize = sizeof(struct nfsd3_writeargs), 747 .pc_ressize = sizeof(struct nfsd3_writeres), 748 .pc_cachetype = RC_REPLBUFF, 749 .pc_xdrressize = ST+WC+4, 750 }, 751 [NFS3PROC_CREATE] = { 752 .pc_func = (svc_procfunc) nfsd3_proc_create, 753 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs, 754 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 755 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 756 .pc_argsize = sizeof(struct nfsd3_createargs), 757 .pc_ressize = sizeof(struct nfsd3_createres), 758 .pc_cachetype = RC_REPLBUFF, 759 .pc_xdrressize = ST+(1+FH+pAT)+WC, 760 }, 761 [NFS3PROC_MKDIR] = { 762 .pc_func = (svc_procfunc) nfsd3_proc_mkdir, 763 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs, 764 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 765 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 766 .pc_argsize = sizeof(struct nfsd3_mkdirargs), 767 .pc_ressize = sizeof(struct nfsd3_createres), 768 .pc_cachetype = RC_REPLBUFF, 769 .pc_xdrressize = ST+(1+FH+pAT)+WC, 770 }, 771 [NFS3PROC_SYMLINK] = { 772 .pc_func = (svc_procfunc) nfsd3_proc_symlink, 773 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs, 774 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 775 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 776 .pc_argsize = sizeof(struct nfsd3_symlinkargs), 777 .pc_ressize = sizeof(struct nfsd3_createres), 778 .pc_cachetype = RC_REPLBUFF, 779 .pc_xdrressize = ST+(1+FH+pAT)+WC, 780 }, 781 [NFS3PROC_MKNOD] = { 782 .pc_func = (svc_procfunc) nfsd3_proc_mknod, 783 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs, 784 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres, 785 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 786 .pc_argsize = sizeof(struct nfsd3_mknodargs), 787 .pc_ressize = sizeof(struct nfsd3_createres), 788 .pc_cachetype = RC_REPLBUFF, 789 .pc_xdrressize = ST+(1+FH+pAT)+WC, 790 }, 791 [NFS3PROC_REMOVE] = { 792 .pc_func = (svc_procfunc) nfsd3_proc_remove, 793 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs, 794 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres, 795 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 796 .pc_argsize = sizeof(struct nfsd3_diropargs), 797 .pc_ressize = sizeof(struct nfsd3_wccstatres), 798 .pc_cachetype = RC_REPLBUFF, 799 .pc_xdrressize = ST+WC, 800 }, 801 [NFS3PROC_RMDIR] = { 802 .pc_func = (svc_procfunc) nfsd3_proc_rmdir, 803 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs, 804 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres, 805 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 806 .pc_argsize = sizeof(struct nfsd3_diropargs), 807 .pc_ressize = sizeof(struct nfsd3_wccstatres), 808 .pc_cachetype = RC_REPLBUFF, 809 .pc_xdrressize = ST+WC, 810 }, 811 [NFS3PROC_RENAME] = { 812 .pc_func = (svc_procfunc) nfsd3_proc_rename, 813 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs, 814 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres, 815 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 816 .pc_argsize = sizeof(struct nfsd3_renameargs), 817 .pc_ressize = sizeof(struct nfsd3_renameres), 818 .pc_cachetype = RC_REPLBUFF, 819 .pc_xdrressize = ST+WC+WC, 820 }, 821 [NFS3PROC_LINK] = { 822 .pc_func = (svc_procfunc) nfsd3_proc_link, 823 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs, 824 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres, 825 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2, 826 .pc_argsize = sizeof(struct nfsd3_linkargs), 827 .pc_ressize = sizeof(struct nfsd3_linkres), 828 .pc_cachetype = RC_REPLBUFF, 829 .pc_xdrressize = ST+pAT+WC, 830 }, 831 [NFS3PROC_READDIR] = { 832 .pc_func = (svc_procfunc) nfsd3_proc_readdir, 833 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs, 834 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres, 835 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 836 .pc_argsize = sizeof(struct nfsd3_readdirargs), 837 .pc_ressize = sizeof(struct nfsd3_readdirres), 838 .pc_cachetype = RC_NOCACHE, 839 }, 840 [NFS3PROC_READDIRPLUS] = { 841 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus, 842 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs, 843 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres, 844 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 845 .pc_argsize = sizeof(struct nfsd3_readdirplusargs), 846 .pc_ressize = sizeof(struct nfsd3_readdirres), 847 .pc_cachetype = RC_NOCACHE, 848 }, 849 [NFS3PROC_FSSTAT] = { 850 .pc_func = (svc_procfunc) nfsd3_proc_fsstat, 851 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 852 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres, 853 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 854 .pc_ressize = sizeof(struct nfsd3_fsstatres), 855 .pc_cachetype = RC_NOCACHE, 856 .pc_xdrressize = ST+pAT+2*6+1, 857 }, 858 [NFS3PROC_FSINFO] = { 859 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo, 860 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 861 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores, 862 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 863 .pc_ressize = sizeof(struct nfsd3_fsinfores), 864 .pc_cachetype = RC_NOCACHE, 865 .pc_xdrressize = ST+pAT+12, 866 }, 867 [NFS3PROC_PATHCONF] = { 868 .pc_func = (svc_procfunc) nfsd3_proc_pathconf, 869 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs, 870 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres, 871 .pc_argsize = sizeof(struct nfsd3_fhandleargs), 872 .pc_ressize = sizeof(struct nfsd3_pathconfres), 873 .pc_cachetype = RC_NOCACHE, 874 .pc_xdrressize = ST+pAT+6, 875 }, 876 [NFS3PROC_COMMIT] = { 877 .pc_func = (svc_procfunc) nfsd3_proc_commit, 878 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs, 879 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres, 880 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle, 881 .pc_argsize = sizeof(struct nfsd3_commitargs), 882 .pc_ressize = sizeof(struct nfsd3_commitres), 883 .pc_cachetype = RC_NOCACHE, 884 .pc_xdrressize = ST+WC+2, 885 }, 886 }; 887 888 struct svc_version nfsd_version3 = { 889 .vs_vers = 3, 890 .vs_nproc = 22, 891 .vs_proc = nfsd_procedures3, 892 .vs_dispatch = nfsd_dispatch, 893 .vs_xdrsize = NFS3_SVC_XDRSIZE, 894 }; 895