Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/fs/nfsd/nfs3proc.c
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1 /* 2 * linux/fs/nfsd/nfs3proc.c 3 * 4 * Process version 3 NFS requests. 5 * 6 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de> 7 */ 8 9 #include <linux/linkage.h> 10 #include <linux/sched.h> 11 #include <linux/errno.h> 12 #include <linux/locks.h> 13 #include <linux/fs.h> 14 #include <linux/ext2_fs.h> 15 #include <linux/stat.h> 16 #include <linux/fcntl.h> 17 #include <linux/net.h> 18 #include <linux/in.h> 19 #include <linux/version.h> 20 #include <linux/unistd.h> 21 #include <linux/slab.h> 22 #include <linux/major.h> 23 24 #include <linux/sunrpc/svc.h> 25 #include <linux/nfsd/nfsd.h> 26 #include <linux/nfsd/cache.h> 27 #include <linux/nfsd/xdr3.h> 28 #include <linux/nfs3.h> 29 30 #define NFSDDBG_FACILITY NFSDDBG_PROC 31 32 #define RETURN_STATUS(st) { resp->status = (st); return (st); } 33 34 static int nfs3_ftypes[] = { 35 0, /* NF3NON */ 36 S_IFREG, /* NF3REG */ 37 S_IFDIR, /* NF3DIR */ 38 S_IFBLK, /* NF3BLK */ 39 S_IFCHR, /* NF3CHR */ 40 S_IFLNK, /* NF3LNK */ 41 S_IFSOCK, /* NF3SOCK */ 42 S_IFIFO, /* NF3FIFO */ 43 }; 44 45 /* 46 * Reserve room in the send buffer 47 */ 48 static void 49 svcbuf_reserve(struct svc_buf *buf, u32 **ptr, int *len, int nr) 50 { 51 *ptr = buf->buf + nr; 52 *len = buf->buflen - buf->len - nr; 53 } 54 55 /* 56 * NULL call. 57 */ 58 static int 59 nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) 60 { 61 return nfs_ok; 62 } 63 64 /* 65 * Get a file's attributes 66 */ 67 static int 68 nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp, 69 struct nfsd3_attrstat *resp) 70 { 71 int nfserr; 72 73 dprintk("nfsd: GETATTR(3) %s\n", 74 SVCFH_fmt(&argp->fh)); 75 76 fh_copy(&resp->fh, &argp->fh); 77 nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP); 78 RETURN_STATUS(nfserr); 79 } 80 81 /* 82 * Set a file's attributes 83 */ 84 static int 85 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp, 86 struct nfsd3_attrstat *resp) 87 { 88 int nfserr; 89 90 dprintk("nfsd: SETATTR(3) %s\n", 91 SVCFH_fmt(&argp->fh)); 92 93 fh_copy(&resp->fh, &argp->fh); 94 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs, 95 argp->check_guard, argp->guardtime); 96 RETURN_STATUS(nfserr); 97 } 98 99 /* 100 * Look up a path name component 101 */ 102 static int 103 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 104 struct nfsd3_diropres *resp) 105 { 106 int nfserr; 107 108 dprintk("nfsd: LOOKUP(3) %s %.*s\n", 109 SVCFH_fmt(&argp->fh), 110 argp->len, 111 argp->name); 112 113 fh_copy(&resp->dirfh, &argp->fh); 114 fh_init(&resp->fh, NFS3_FHSIZE); 115 116 nfserr = nfsd_lookup(rqstp, &resp->dirfh, 117 argp->name, 118 argp->len, 119 &resp->fh); 120 RETURN_STATUS(nfserr); 121 } 122 123 /* 124 * Check file access 125 */ 126 static int 127 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp, 128 struct nfsd3_accessres *resp) 129 { 130 int nfserr; 131 132 dprintk("nfsd: ACCESS(3) %s 0x%x\n", 133 SVCFH_fmt(&argp->fh), 134 argp->access); 135 136 fh_copy(&resp->fh, &argp->fh); 137 resp->access = argp->access; 138 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access); 139 RETURN_STATUS(nfserr); 140 } 141 142 /* 143 * Read a symlink. 144 */ 145 static int 146 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd_fhandle *argp, 147 struct nfsd3_readlinkres *resp) 148 { 149 u32 *path; 150 int dummy, nfserr; 151 152 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh)); 153 154 /* Reserve room for status, post_op_attr, and path length */ 155 svcbuf_reserve(&rqstp->rq_resbuf, &path, &dummy, 156 1 + NFS3_POST_OP_ATTR_WORDS + 1); 157 158 /* Read the symlink. */ 159 fh_copy(&resp->fh, &argp->fh); 160 resp->len = NFS3_MAXPATHLEN; 161 nfserr = nfsd_readlink(rqstp, &resp->fh, (char *) path, &resp->len); 162 RETURN_STATUS(nfserr); 163 } 164 165 /* 166 * Read a portion of a file. 167 */ 168 static int 169 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp, 170 struct nfsd3_readres *resp) 171 { 172 u32 * buffer; 173 int nfserr, avail; 174 175 dprintk("nfsd: READ(3) %s %lu bytes at %lu\n", 176 SVCFH_fmt(&argp->fh), 177 (unsigned long) argp->count, 178 (unsigned long) argp->offset); 179 180 /* Obtain buffer pointer for payload. 181 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof) 182 * + 1 (xdr opaque byte count) = 26 183 */ 184 svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &avail, 185 1 + NFS3_POST_OP_ATTR_WORDS + 3); 186 187 resp->count = argp->count; 188 if ((avail << 2) < resp->count) 189 resp->count = avail << 2; 190 191 svc_reserve(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + argp->count +4); 192 193 fh_copy(&resp->fh, &argp->fh); 194 nfserr = nfsd_read(rqstp, &resp->fh, 195 argp->offset, 196 (char *) buffer, 197 &resp->count); 198 if (nfserr == 0) { 199 struct inode *inode = resp->fh.fh_dentry->d_inode; 200 201 resp->eof = (argp->offset + resp->count) >= inode->i_size; 202 } 203 204 RETURN_STATUS(nfserr); 205 } 206 207 /* 208 * Write data to a file 209 */ 210 static int 211 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp, 212 struct nfsd3_writeres *resp) 213 { 214 int nfserr; 215 216 dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n", 217 SVCFH_fmt(&argp->fh), 218 argp->len, 219 (unsigned long) argp->offset, 220 argp->stable? " stable" : ""); 221 222 fh_copy(&resp->fh, &argp->fh); 223 resp->committed = argp->stable; 224 nfserr = nfsd_write(rqstp, &resp->fh, 225 argp->offset, 226 argp->data, 227 argp->len, 228 &resp->committed); 229 resp->count = argp->count; 230 RETURN_STATUS(nfserr); 231 } 232 233 /* 234 * With NFSv3, CREATE processing is a lot easier than with NFSv2. 235 * At least in theory; we'll see how it fares in practice when the 236 * first reports about SunOS compatibility problems start to pour in... 237 */ 238 static int 239 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, 240 struct nfsd3_diropres *resp) 241 { 242 svc_fh *dirfhp, *newfhp = NULL; 243 struct iattr *attr; 244 u32 nfserr; 245 246 dprintk("nfsd: CREATE(3) %s %.*s\n", 247 SVCFH_fmt(&argp->fh), 248 argp->len, 249 argp->name); 250 251 dirfhp = fh_copy(&resp->dirfh, &argp->fh); 252 newfhp = fh_init(&resp->fh, NFS3_FHSIZE); 253 attr = &argp->attrs; 254 255 /* Get the directory inode */ 256 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, MAY_CREATE); 257 if (nfserr) 258 RETURN_STATUS(nfserr); 259 260 /* Unfudge the mode bits */ 261 attr->ia_mode &= ~S_IFMT; 262 if (!(attr->ia_valid & ATTR_MODE)) { 263 attr->ia_valid |= ATTR_MODE; 264 attr->ia_mode = S_IFREG; 265 } else { 266 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG; 267 } 268 269 /* Now create the file and set attributes */ 270 nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len, 271 attr, newfhp, 272 argp->createmode, argp->verf); 273 274 RETURN_STATUS(nfserr); 275 } 276 277 /* 278 * Make directory. This operation is not idempotent. 279 */ 280 static int 281 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, 282 struct nfsd3_diropres *resp) 283 { 284 int nfserr; 285 286 dprintk("nfsd: MKDIR(3) %s %.*s\n", 287 SVCFH_fmt(&argp->fh), 288 argp->len, 289 argp->name); 290 291 argp->attrs.ia_valid &= ~ATTR_SIZE; 292 fh_copy(&resp->dirfh, &argp->fh); 293 fh_init(&resp->fh, NFS3_FHSIZE); 294 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len, 295 &argp->attrs, S_IFDIR, 0, &resp->fh); 296 297 RETURN_STATUS(nfserr); 298 } 299 300 static int 301 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp, 302 struct nfsd3_diropres *resp) 303 { 304 int nfserr; 305 306 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n", 307 SVCFH_fmt(&argp->ffh), 308 argp->flen, argp->fname, 309 argp->tlen, argp->tname); 310 311 fh_copy(&resp->dirfh, &argp->ffh); 312 fh_init(&resp->fh, NFS3_FHSIZE); 313 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen, 314 argp->tname, argp->tlen, 315 &resp->fh, &argp->attrs); 316 RETURN_STATUS(nfserr); 317 } 318 319 /* 320 * Make socket/fifo/device. 321 */ 322 static int 323 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp, 324 struct nfsd3_diropres *resp) 325 { 326 int nfserr, type; 327 dev_t rdev = 0; 328 329 dprintk("nfsd: MKNOD(3) %s %.*s\n", 330 SVCFH_fmt(&argp->fh), 331 argp->len, 332 argp->name); 333 334 fh_copy(&resp->dirfh, &argp->fh); 335 fh_init(&resp->fh, NFS3_FHSIZE); 336 337 if (argp->ftype == 0 || argp->ftype >= NF3BAD) 338 RETURN_STATUS(nfserr_inval); 339 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) { 340 if ((argp->ftype == NF3CHR && argp->major >= MAX_CHRDEV) 341 || (argp->ftype == NF3BLK && argp->major >= MAX_BLKDEV) 342 || argp->minor > 0xFF) 343 RETURN_STATUS(nfserr_inval); 344 rdev = MKDEV(argp->major, argp->minor); 345 } else 346 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) 347 RETURN_STATUS(nfserr_inval); 348 349 type = nfs3_ftypes[argp->ftype]; 350 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len, 351 &argp->attrs, type, rdev, &resp->fh); 352 353 RETURN_STATUS(nfserr); 354 } 355 356 /* 357 * Remove file/fifo/socket etc. 358 */ 359 static int 360 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 361 struct nfsd3_attrstat *resp) 362 { 363 int nfserr; 364 365 dprintk("nfsd: REMOVE(3) %s %.*s\n", 366 SVCFH_fmt(&argp->fh), 367 argp->len, 368 argp->name); 369 370 /* Unlink. -S_IFDIR means file must not be a directory */ 371 fh_copy(&resp->fh, &argp->fh); 372 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len); 373 RETURN_STATUS(nfserr); 374 } 375 376 /* 377 * Remove a directory 378 */ 379 static int 380 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp, 381 struct nfsd3_attrstat *resp) 382 { 383 int nfserr; 384 385 dprintk("nfsd: RMDIR(3) %s %.*s\n", 386 SVCFH_fmt(&argp->fh), 387 argp->len, 388 argp->name); 389 390 fh_copy(&resp->fh, &argp->fh); 391 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len); 392 RETURN_STATUS(nfserr); 393 } 394 395 static int 396 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp, 397 struct nfsd3_renameres *resp) 398 { 399 int nfserr; 400 401 dprintk("nfsd: RENAME(3) %s %.*s ->\n", 402 SVCFH_fmt(&argp->ffh), 403 argp->flen, 404 argp->fname); 405 dprintk("nfsd: -> %s %.*s\n", 406 SVCFH_fmt(&argp->tfh), 407 argp->tlen, 408 argp->tname); 409 410 fh_copy(&resp->ffh, &argp->ffh); 411 fh_copy(&resp->tfh, &argp->tfh); 412 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen, 413 &resp->tfh, argp->tname, argp->tlen); 414 RETURN_STATUS(nfserr); 415 } 416 417 static int 418 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp, 419 struct nfsd3_linkres *resp) 420 { 421 int nfserr; 422 423 dprintk("nfsd: LINK(3) %s ->\n", 424 SVCFH_fmt(&argp->ffh)); 425 dprintk("nfsd: -> %s %.*s\n", 426 SVCFH_fmt(&argp->tfh), 427 argp->tlen, 428 argp->tname); 429 430 fh_copy(&resp->fh, &argp->ffh); 431 fh_copy(&resp->tfh, &argp->tfh); 432 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen, 433 &resp->fh); 434 RETURN_STATUS(nfserr); 435 } 436 437 /* 438 * Read a portion of a directory. 439 */ 440 static int 441 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, 442 struct nfsd3_readdirres *resp) 443 { 444 u32 * buffer; 445 int nfserr, count; 446 unsigned int want; 447 448 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n", 449 SVCFH_fmt(&argp->fh), 450 argp->count, (u32) argp->cookie); 451 452 /* Reserve buffer space for status, attributes and verifier */ 453 svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &count, 454 1 + NFS3_POST_OP_ATTR_WORDS + 2); 455 456 /* Make sure we've room for the NULL ptr & eof flag, and shrink to 457 * client read size */ 458 if ((count -= 2) > (want = (argp->count >> 2) - 2)) 459 count = want; 460 461 /* Read directory and encode entries on the fly */ 462 fh_copy(&resp->fh, &argp->fh); 463 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t) argp->cookie, 464 nfs3svc_encode_entry, 465 buffer, &count, argp->verf); 466 memcpy(resp->verf, argp->verf, 8); 467 resp->count = count; 468 469 RETURN_STATUS(nfserr); 470 } 471 472 /* 473 * Read a portion of a directory, including file handles and attrs. 474 * For now, we choose to ignore the dircount parameter. 475 */ 476 static int 477 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, 478 struct nfsd3_readdirres *resp) 479 { 480 u32 * buffer; 481 int nfserr, count, want; 482 483 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n", 484 SVCFH_fmt(&argp->fh), 485 argp->count, (u32) argp->cookie); 486 487 /* Reserve buffer space for status, attributes and verifier */ 488 svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &count, 489 1 + NFS3_POST_OP_ATTR_WORDS + 2); 490 491 /* Make sure we've room for the NULL ptr & eof flag, and shrink to 492 * client read size */ 493 if ((count -= 2) > (want = argp->count >> 2)) 494 count = want; 495 496 /* Read directory and encode entries on the fly */ 497 fh_copy(&resp->fh, &argp->fh); 498 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t) argp->cookie, 499 nfs3svc_encode_entry_plus, 500 buffer, &count, argp->verf); 501 memcpy(resp->verf, argp->verf, 8); 502 resp->count = count; 503 504 RETURN_STATUS(nfserr); 505 } 506 507 /* 508 * Get file system stats 509 */ 510 static int 511 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 512 struct nfsd3_fsstatres *resp) 513 { 514 int nfserr; 515 516 dprintk("nfsd: FSSTAT(3) %s\n", 517 SVCFH_fmt(&argp->fh)); 518 519 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats); 520 fh_put(&argp->fh); 521 RETURN_STATUS(nfserr); 522 } 523 524 /* 525 * Get file system info 526 */ 527 static int 528 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 529 struct nfsd3_fsinfores *resp) 530 { 531 int nfserr; 532 533 dprintk("nfsd: FSINFO(3) %s\n", 534 SVCFH_fmt(&argp->fh)); 535 536 resp->f_rtmax = NFSSVC_MAXBLKSIZE; 537 resp->f_rtpref = NFSSVC_MAXBLKSIZE; 538 resp->f_rtmult = PAGE_SIZE; 539 resp->f_wtmax = NFSSVC_MAXBLKSIZE; 540 resp->f_wtpref = NFSSVC_MAXBLKSIZE; 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, MAY_NOP); 547 548 /* Check special features of the file system. May request 549 * different read/write sizes for file systems known to have 550 * problems with large blocks */ 551 if (nfserr == 0) { 552 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb; 553 554 /* Note that we don't care for remote fs's here */ 555 if (sb->s_magic == 0x4d44 /* MSDOS_SUPER_MAGIC */) { 556 resp->f_properties = NFS3_FSF_BILLYBOY; 557 } 558 resp->f_maxfilesize = sb->s_maxbytes; 559 } 560 561 fh_put(&argp->fh); 562 RETURN_STATUS(nfserr); 563 } 564 565 /* 566 * Get pathconf info for the specified file 567 */ 568 static int 569 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp, 570 struct nfsd3_pathconfres *resp) 571 { 572 int nfserr; 573 574 dprintk("nfsd: PATHCONF(3) %s\n", 575 SVCFH_fmt(&argp->fh)); 576 577 /* Set default pathconf */ 578 resp->p_link_max = 255; /* at least */ 579 resp->p_name_max = 255; /* at least */ 580 resp->p_no_trunc = 0; 581 resp->p_chown_restricted = 1; 582 resp->p_case_insensitive = 0; 583 resp->p_case_preserving = 1; 584 585 nfserr = fh_verify(rqstp, &argp->fh, 0, MAY_NOP); 586 587 if (nfserr == 0) { 588 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb; 589 590 /* Note that we don't care for remote fs's here */ 591 switch (sb->s_magic) { 592 case EXT2_SUPER_MAGIC: 593 resp->p_link_max = EXT2_LINK_MAX; 594 resp->p_name_max = EXT2_NAME_LEN; 595 break; 596 case 0x4d44: /* MSDOS_SUPER_MAGIC */ 597 resp->p_case_insensitive = 1; 598 resp->p_case_preserving = 0; 599 break; 600 } 601 } 602 603 fh_put(&argp->fh); 604 RETURN_STATUS(nfserr); 605 } 606 607 608 /* 609 * Commit a file (range) to stable storage. 610 */ 611 static int 612 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp, 613 struct nfsd3_commitres *resp) 614 { 615 int nfserr; 616 617 dprintk("nfsd: COMMIT(3) %s %d@%ld\n", 618 SVCFH_fmt(&argp->fh), 619 argp->count, 620 (unsigned long) argp->offset); 621 622 if (argp->offset > NFS_OFFSET_MAX) 623 RETURN_STATUS(nfserr_inval); 624 625 fh_copy(&resp->fh, &argp->fh); 626 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count); 627 628 RETURN_STATUS(nfserr); 629 } 630 631 632 /* 633 * NFSv3 Server procedures. 634 * Only the results of non-idempotent operations are cached. 635 */ 636 #define nfs3svc_decode_voidargs NULL 637 #define nfs3svc_release_void NULL 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 struct svc_procedure nfsd_procedures3[22] = { 670 PROC(null, void, void, void, RC_NOCACHE, ST), 671 PROC(getattr, fhandle, attrstat, fhandle, RC_NOCACHE, ST+AT), 672 PROC(setattr, sattr, wccstat, fhandle, RC_REPLBUFF, ST+WC), 673 PROC(lookup, dirop, dirop, fhandle2, RC_NOCACHE, ST+FH+pAT+pAT), 674 PROC(access, access, access, fhandle, RC_NOCACHE, ST+pAT+1), 675 PROC(readlink, fhandle, readlink, fhandle, RC_NOCACHE, ST+pAT+1+NFS3_MAXPATHLEN/4), 676 PROC(read, read, read, fhandle, RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE), 677 PROC(write, write, write, fhandle, RC_REPLBUFF, ST+WC+4), 678 PROC(create, create, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC), 679 PROC(mkdir, mkdir, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC), 680 PROC(symlink, symlink, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC), 681 PROC(mknod, mknod, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC), 682 PROC(remove, dirop, wccstat, fhandle, RC_REPLBUFF, ST+WC), 683 PROC(rmdir, dirop, wccstat, fhandle, RC_REPLBUFF, ST+WC), 684 PROC(rename, rename, rename, fhandle2, RC_REPLBUFF, ST+WC+WC), 685 PROC(link, link, link, fhandle2, RC_REPLBUFF, ST+pAT+WC), 686 PROC(readdir, readdir, readdir, fhandle, RC_NOCACHE, 0), 687 PROC(readdirplus,readdirplus, readdir, fhandle, RC_NOCACHE, 0), 688 PROC(fsstat, fhandle, fsstat, void, RC_NOCACHE, ST+pAT+2*6+1), 689 PROC(fsinfo, fhandle, fsinfo, void, RC_NOCACHE, ST+pAT+12), 690 PROC(pathconf, fhandle, pathconf, void, RC_NOCACHE, ST+pAT+6), 691 PROC(commit, commit, commit, fhandle, RC_NOCACHE, ST+WC+2), 692 };
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