Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/fs/nfsserver/nfs_nfsdsubs.c
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1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 /* 40 * These functions support the macros and help fiddle mbuf chains for 41 * the nfs op functions. They do things like create the rpc header and 42 * copy data between mbuf chains and uio lists. 43 */ 44 #include <fs/nfs/nfsport.h> 45 46 extern u_int32_t newnfs_true, newnfs_false; 47 extern int nfs_pubfhset; 48 extern struct nfsclienthashhead *nfsclienthash; 49 extern int nfsrv_clienthashsize; 50 extern struct nfslockhashhead *nfslockhash; 51 extern int nfsrv_lockhashsize; 52 extern struct nfssessionhash *nfssessionhash; 53 extern int nfsrv_sessionhashsize; 54 extern int nfsrv_useacl; 55 extern uid_t nfsrv_defaultuid; 56 extern gid_t nfsrv_defaultgid; 57 58 char nfs_v2pubfh[NFSX_V2FH]; 59 struct nfsdontlisthead nfsrv_dontlisthead; 60 struct nfslayouthead nfsrv_recalllisthead; 61 static nfstype newnfsv2_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, 62 NFNON, NFCHR, NFNON }; 63 extern nfstype nfsv34_type[9]; 64 65 static u_int32_t nfsrv_isannfserr(u_int32_t); 66 67 SYSCTL_DECL(_vfs_nfsd); 68 69 static int enable_checkutf8 = 1; 70 SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_checkutf8, CTLFLAG_RW, 71 &enable_checkutf8, 0, 72 "Enable the NFSv4 check for the UTF8 compliant name required by rfc3530"); 73 74 static int enable_nobodycheck = 1; 75 SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_nobodycheck, CTLFLAG_RW, 76 &enable_nobodycheck, 0, 77 "Enable the NFSv4 check when setting user nobody as owner"); 78 79 static int enable_nogroupcheck = 1; 80 SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_nogroupcheck, CTLFLAG_RW, 81 &enable_nogroupcheck, 0, 82 "Enable the NFSv4 check when setting group nogroup as owner"); 83 84 static char nfsrv_hexdigit(char, int *); 85 86 /* 87 * Maps errno values to nfs error numbers. 88 * Use NFSERR_IO as the catch all for ones not specifically defined in 89 * RFC 1094. (It now includes the errors added for NFSv3.) 90 */ 91 static u_char nfsrv_v2errmap[NFSERR_REMOTE] = { 92 NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, 93 NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 94 NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, 95 NFSERR_IO, NFSERR_EXIST, NFSERR_XDEV, NFSERR_NODEV, NFSERR_NOTDIR, 96 NFSERR_ISDIR, NFSERR_INVAL, NFSERR_IO, NFSERR_IO, NFSERR_IO, 97 NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, 98 NFSERR_MLINK, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 99 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 100 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 101 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 102 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 103 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 104 NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO, 105 NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, 106 NFSERR_REMOTE, 107 }; 108 109 /* 110 * Maps errno values to nfs error numbers. 111 * Although it is not obvious whether or not NFS clients really care if 112 * a returned error value is in the specified list for the procedure, the 113 * safest thing to do is filter them appropriately. For Version 2, the 114 * X/Open XNFS document is the only specification that defines error values 115 * for each RPC (The RFC simply lists all possible error values for all RPCs), 116 * so I have decided to not do this for Version 2. 117 * The first entry is the default error return and the rest are the valid 118 * errors for that RPC in increasing numeric order. 119 */ 120 static short nfsv3err_null[] = { 121 0, 122 0, 123 }; 124 125 static short nfsv3err_getattr[] = { 126 NFSERR_IO, 127 NFSERR_IO, 128 NFSERR_STALE, 129 NFSERR_BADHANDLE, 130 NFSERR_SERVERFAULT, 131 NFSERR_DELAY, 132 0, 133 }; 134 135 static short nfsv3err_setattr[] = { 136 NFSERR_IO, 137 NFSERR_ACCES, 138 NFSERR_PERM, 139 NFSERR_IO, 140 NFSERR_INVAL, 141 NFSERR_NOSPC, 142 NFSERR_ROFS, 143 NFSERR_DQUOT, 144 NFSERR_STALE, 145 NFSERR_BADHANDLE, 146 NFSERR_NOT_SYNC, 147 NFSERR_SERVERFAULT, 148 NFSERR_DELAY, 149 0, 150 }; 151 152 static short nfsv3err_lookup[] = { 153 NFSERR_IO, 154 NFSERR_NOENT, 155 NFSERR_ACCES, 156 NFSERR_NAMETOL, 157 NFSERR_IO, 158 NFSERR_NOTDIR, 159 NFSERR_STALE, 160 NFSERR_BADHANDLE, 161 NFSERR_SERVERFAULT, 162 NFSERR_DELAY, 163 0, 164 }; 165 166 static short nfsv3err_access[] = { 167 NFSERR_IO, 168 NFSERR_IO, 169 NFSERR_STALE, 170 NFSERR_BADHANDLE, 171 NFSERR_SERVERFAULT, 172 NFSERR_DELAY, 173 0, 174 }; 175 176 static short nfsv3err_readlink[] = { 177 NFSERR_IO, 178 NFSERR_IO, 179 NFSERR_ACCES, 180 NFSERR_INVAL, 181 NFSERR_STALE, 182 NFSERR_BADHANDLE, 183 NFSERR_NOTSUPP, 184 NFSERR_SERVERFAULT, 185 NFSERR_DELAY, 186 0, 187 }; 188 189 static short nfsv3err_read[] = { 190 NFSERR_IO, 191 NFSERR_IO, 192 NFSERR_NXIO, 193 NFSERR_ACCES, 194 NFSERR_INVAL, 195 NFSERR_STALE, 196 NFSERR_BADHANDLE, 197 NFSERR_SERVERFAULT, 198 NFSERR_DELAY, 199 0, 200 }; 201 202 static short nfsv3err_write[] = { 203 NFSERR_IO, 204 NFSERR_IO, 205 NFSERR_ACCES, 206 NFSERR_NOSPC, 207 NFSERR_INVAL, 208 NFSERR_FBIG, 209 NFSERR_ROFS, 210 NFSERR_DQUOT, 211 NFSERR_STALE, 212 NFSERR_BADHANDLE, 213 NFSERR_SERVERFAULT, 214 NFSERR_DELAY, 215 0, 216 }; 217 218 static short nfsv3err_create[] = { 219 NFSERR_IO, 220 NFSERR_EXIST, 221 NFSERR_NAMETOL, 222 NFSERR_ACCES, 223 NFSERR_IO, 224 NFSERR_NOTDIR, 225 NFSERR_NOSPC, 226 NFSERR_ROFS, 227 NFSERR_DQUOT, 228 NFSERR_STALE, 229 NFSERR_BADHANDLE, 230 NFSERR_NOTSUPP, 231 NFSERR_SERVERFAULT, 232 NFSERR_DELAY, 233 0, 234 }; 235 236 static short nfsv3err_mkdir[] = { 237 NFSERR_IO, 238 NFSERR_EXIST, 239 NFSERR_ACCES, 240 NFSERR_NAMETOL, 241 NFSERR_IO, 242 NFSERR_NOTDIR, 243 NFSERR_NOSPC, 244 NFSERR_ROFS, 245 NFSERR_DQUOT, 246 NFSERR_STALE, 247 NFSERR_BADHANDLE, 248 NFSERR_NOTSUPP, 249 NFSERR_SERVERFAULT, 250 NFSERR_DELAY, 251 0, 252 }; 253 254 static short nfsv3err_symlink[] = { 255 NFSERR_IO, 256 NFSERR_ACCES, 257 NFSERR_EXIST, 258 NFSERR_NAMETOL, 259 NFSERR_NOSPC, 260 NFSERR_IO, 261 NFSERR_NOTDIR, 262 NFSERR_ROFS, 263 NFSERR_DQUOT, 264 NFSERR_STALE, 265 NFSERR_BADHANDLE, 266 NFSERR_NOTSUPP, 267 NFSERR_SERVERFAULT, 268 NFSERR_DELAY, 269 0, 270 }; 271 272 static short nfsv3err_mknod[] = { 273 NFSERR_IO, 274 NFSERR_ACCES, 275 NFSERR_EXIST, 276 NFSERR_NAMETOL, 277 NFSERR_NOSPC, 278 NFSERR_IO, 279 NFSERR_NOTDIR, 280 NFSERR_ROFS, 281 NFSERR_DQUOT, 282 NFSERR_STALE, 283 NFSERR_BADHANDLE, 284 NFSERR_NOTSUPP, 285 NFSERR_SERVERFAULT, 286 NFSERR_DELAY, 287 NFSERR_BADTYPE, 288 0, 289 }; 290 291 static short nfsv3err_remove[] = { 292 NFSERR_IO, 293 NFSERR_NOENT, 294 NFSERR_ACCES, 295 NFSERR_NAMETOL, 296 NFSERR_IO, 297 NFSERR_NOTDIR, 298 NFSERR_ROFS, 299 NFSERR_STALE, 300 NFSERR_BADHANDLE, 301 NFSERR_SERVERFAULT, 302 NFSERR_DELAY, 303 0, 304 }; 305 306 static short nfsv3err_rmdir[] = { 307 NFSERR_IO, 308 NFSERR_NOENT, 309 NFSERR_ACCES, 310 NFSERR_NOTDIR, 311 NFSERR_NAMETOL, 312 NFSERR_IO, 313 NFSERR_EXIST, 314 NFSERR_INVAL, 315 NFSERR_ROFS, 316 NFSERR_NOTEMPTY, 317 NFSERR_STALE, 318 NFSERR_BADHANDLE, 319 NFSERR_NOTSUPP, 320 NFSERR_SERVERFAULT, 321 NFSERR_DELAY, 322 0, 323 }; 324 325 static short nfsv3err_rename[] = { 326 NFSERR_IO, 327 NFSERR_NOENT, 328 NFSERR_ACCES, 329 NFSERR_EXIST, 330 NFSERR_NAMETOL, 331 NFSERR_XDEV, 332 NFSERR_IO, 333 NFSERR_NOTDIR, 334 NFSERR_ISDIR, 335 NFSERR_INVAL, 336 NFSERR_NOSPC, 337 NFSERR_ROFS, 338 NFSERR_MLINK, 339 NFSERR_NOTEMPTY, 340 NFSERR_DQUOT, 341 NFSERR_STALE, 342 NFSERR_BADHANDLE, 343 NFSERR_NOTSUPP, 344 NFSERR_SERVERFAULT, 345 NFSERR_DELAY, 346 0, 347 }; 348 349 static short nfsv3err_link[] = { 350 NFSERR_IO, 351 NFSERR_ACCES, 352 NFSERR_EXIST, 353 NFSERR_NAMETOL, 354 NFSERR_IO, 355 NFSERR_XDEV, 356 NFSERR_NOTDIR, 357 NFSERR_INVAL, 358 NFSERR_NOSPC, 359 NFSERR_ROFS, 360 NFSERR_MLINK, 361 NFSERR_DQUOT, 362 NFSERR_STALE, 363 NFSERR_BADHANDLE, 364 NFSERR_NOTSUPP, 365 NFSERR_SERVERFAULT, 366 NFSERR_DELAY, 367 0, 368 }; 369 370 static short nfsv3err_readdir[] = { 371 NFSERR_IO, 372 NFSERR_ACCES, 373 NFSERR_NOTDIR, 374 NFSERR_IO, 375 NFSERR_STALE, 376 NFSERR_BADHANDLE, 377 NFSERR_BAD_COOKIE, 378 NFSERR_TOOSMALL, 379 NFSERR_SERVERFAULT, 380 NFSERR_DELAY, 381 0, 382 }; 383 384 static short nfsv3err_readdirplus[] = { 385 NFSERR_IO, 386 NFSERR_ACCES, 387 NFSERR_NOTDIR, 388 NFSERR_IO, 389 NFSERR_STALE, 390 NFSERR_BADHANDLE, 391 NFSERR_BAD_COOKIE, 392 NFSERR_NOTSUPP, 393 NFSERR_TOOSMALL, 394 NFSERR_SERVERFAULT, 395 NFSERR_DELAY, 396 0, 397 }; 398 399 static short nfsv3err_fsstat[] = { 400 NFSERR_IO, 401 NFSERR_IO, 402 NFSERR_STALE, 403 NFSERR_BADHANDLE, 404 NFSERR_SERVERFAULT, 405 NFSERR_DELAY, 406 0, 407 }; 408 409 static short nfsv3err_fsinfo[] = { 410 NFSERR_STALE, 411 NFSERR_STALE, 412 NFSERR_BADHANDLE, 413 NFSERR_SERVERFAULT, 414 NFSERR_DELAY, 415 0, 416 }; 417 418 static short nfsv3err_pathconf[] = { 419 NFSERR_STALE, 420 NFSERR_STALE, 421 NFSERR_BADHANDLE, 422 NFSERR_SERVERFAULT, 423 NFSERR_DELAY, 424 0, 425 }; 426 427 static short nfsv3err_commit[] = { 428 NFSERR_IO, 429 NFSERR_IO, 430 NFSERR_STALE, 431 NFSERR_BADHANDLE, 432 NFSERR_SERVERFAULT, 433 NFSERR_DELAY, 434 0, 435 }; 436 437 static short *nfsrv_v3errmap[] = { 438 nfsv3err_null, 439 nfsv3err_getattr, 440 nfsv3err_setattr, 441 nfsv3err_lookup, 442 nfsv3err_access, 443 nfsv3err_readlink, 444 nfsv3err_read, 445 nfsv3err_write, 446 nfsv3err_create, 447 nfsv3err_mkdir, 448 nfsv3err_symlink, 449 nfsv3err_mknod, 450 nfsv3err_remove, 451 nfsv3err_rmdir, 452 nfsv3err_rename, 453 nfsv3err_link, 454 nfsv3err_readdir, 455 nfsv3err_readdirplus, 456 nfsv3err_fsstat, 457 nfsv3err_fsinfo, 458 nfsv3err_pathconf, 459 nfsv3err_commit, 460 }; 461 462 /* 463 * And the same for V4. 464 */ 465 static short nfsv4err_null[] = { 466 0, 467 0, 468 }; 469 470 static short nfsv4err_access[] = { 471 NFSERR_IO, 472 NFSERR_ACCES, 473 NFSERR_BADHANDLE, 474 NFSERR_BADXDR, 475 NFSERR_DELAY, 476 NFSERR_FHEXPIRED, 477 NFSERR_INVAL, 478 NFSERR_IO, 479 NFSERR_MOVED, 480 NFSERR_NOFILEHANDLE, 481 NFSERR_RESOURCE, 482 NFSERR_SERVERFAULT, 483 NFSERR_STALE, 484 0, 485 }; 486 487 static short nfsv4err_close[] = { 488 NFSERR_EXPIRED, 489 NFSERR_ADMINREVOKED, 490 NFSERR_BADHANDLE, 491 NFSERR_BADSEQID, 492 NFSERR_BADSTATEID, 493 NFSERR_BADXDR, 494 NFSERR_DELAY, 495 NFSERR_EXPIRED, 496 NFSERR_FHEXPIRED, 497 NFSERR_INVAL, 498 NFSERR_ISDIR, 499 NFSERR_LEASEMOVED, 500 NFSERR_LOCKSHELD, 501 NFSERR_MOVED, 502 NFSERR_NOFILEHANDLE, 503 NFSERR_OLDSTATEID, 504 NFSERR_RESOURCE, 505 NFSERR_SERVERFAULT, 506 NFSERR_STALE, 507 NFSERR_STALESTATEID, 508 0, 509 }; 510 511 static short nfsv4err_commit[] = { 512 NFSERR_IO, 513 NFSERR_ACCES, 514 NFSERR_BADHANDLE, 515 NFSERR_BADXDR, 516 NFSERR_FHEXPIRED, 517 NFSERR_INVAL, 518 NFSERR_IO, 519 NFSERR_ISDIR, 520 NFSERR_MOVED, 521 NFSERR_NOFILEHANDLE, 522 NFSERR_RESOURCE, 523 NFSERR_ROFS, 524 NFSERR_SERVERFAULT, 525 NFSERR_STALE, 526 0, 527 }; 528 529 static short nfsv4err_create[] = { 530 NFSERR_IO, 531 NFSERR_ACCES, 532 NFSERR_ATTRNOTSUPP, 533 NFSERR_BADCHAR, 534 NFSERR_BADHANDLE, 535 NFSERR_BADNAME, 536 NFSERR_BADOWNER, 537 NFSERR_BADTYPE, 538 NFSERR_BADXDR, 539 NFSERR_DELAY, 540 NFSERR_DQUOT, 541 NFSERR_EXIST, 542 NFSERR_FHEXPIRED, 543 NFSERR_INVAL, 544 NFSERR_IO, 545 NFSERR_MOVED, 546 NFSERR_NAMETOL, 547 NFSERR_NOFILEHANDLE, 548 NFSERR_NOSPC, 549 NFSERR_NOTDIR, 550 NFSERR_PERM, 551 NFSERR_RESOURCE, 552 NFSERR_ROFS, 553 NFSERR_SERVERFAULT, 554 NFSERR_STALE, 555 0, 556 }; 557 558 static short nfsv4err_delegpurge[] = { 559 NFSERR_SERVERFAULT, 560 NFSERR_BADXDR, 561 NFSERR_NOTSUPP, 562 NFSERR_LEASEMOVED, 563 NFSERR_MOVED, 564 NFSERR_RESOURCE, 565 NFSERR_SERVERFAULT, 566 NFSERR_STALECLIENTID, 567 0, 568 }; 569 570 static short nfsv4err_delegreturn[] = { 571 NFSERR_SERVERFAULT, 572 NFSERR_ADMINREVOKED, 573 NFSERR_BADSTATEID, 574 NFSERR_BADXDR, 575 NFSERR_EXPIRED, 576 NFSERR_INVAL, 577 NFSERR_LEASEMOVED, 578 NFSERR_MOVED, 579 NFSERR_NOFILEHANDLE, 580 NFSERR_NOTSUPP, 581 NFSERR_OLDSTATEID, 582 NFSERR_RESOURCE, 583 NFSERR_SERVERFAULT, 584 NFSERR_STALE, 585 NFSERR_STALESTATEID, 586 0, 587 }; 588 589 static short nfsv4err_getattr[] = { 590 NFSERR_IO, 591 NFSERR_ACCES, 592 NFSERR_BADHANDLE, 593 NFSERR_BADXDR, 594 NFSERR_DELAY, 595 NFSERR_FHEXPIRED, 596 NFSERR_INVAL, 597 NFSERR_IO, 598 NFSERR_MOVED, 599 NFSERR_NOFILEHANDLE, 600 NFSERR_RESOURCE, 601 NFSERR_SERVERFAULT, 602 NFSERR_STALE, 603 0, 604 }; 605 606 static short nfsv4err_getfh[] = { 607 NFSERR_BADHANDLE, 608 NFSERR_BADHANDLE, 609 NFSERR_FHEXPIRED, 610 NFSERR_MOVED, 611 NFSERR_NOFILEHANDLE, 612 NFSERR_RESOURCE, 613 NFSERR_SERVERFAULT, 614 NFSERR_STALE, 615 0, 616 }; 617 618 static short nfsv4err_link[] = { 619 NFSERR_IO, 620 NFSERR_ACCES, 621 NFSERR_BADCHAR, 622 NFSERR_BADHANDLE, 623 NFSERR_BADNAME, 624 NFSERR_BADXDR, 625 NFSERR_DELAY, 626 NFSERR_DQUOT, 627 NFSERR_EXIST, 628 NFSERR_FHEXPIRED, 629 NFSERR_FILEOPEN, 630 NFSERR_INVAL, 631 NFSERR_IO, 632 NFSERR_ISDIR, 633 NFSERR_MLINK, 634 NFSERR_MOVED, 635 NFSERR_NAMETOL, 636 NFSERR_NOENT, 637 NFSERR_NOFILEHANDLE, 638 NFSERR_NOSPC, 639 NFSERR_NOTDIR, 640 NFSERR_NOTSUPP, 641 NFSERR_RESOURCE, 642 NFSERR_ROFS, 643 NFSERR_SERVERFAULT, 644 NFSERR_STALE, 645 NFSERR_WRONGSEC, 646 NFSERR_XDEV, 647 0, 648 }; 649 650 static short nfsv4err_lock[] = { 651 NFSERR_SERVERFAULT, 652 NFSERR_ACCES, 653 NFSERR_ADMINREVOKED, 654 NFSERR_BADHANDLE, 655 NFSERR_BADRANGE, 656 NFSERR_BADSEQID, 657 NFSERR_BADSTATEID, 658 NFSERR_BADXDR, 659 NFSERR_DEADLOCK, 660 NFSERR_DELAY, 661 NFSERR_DENIED, 662 NFSERR_EXPIRED, 663 NFSERR_FHEXPIRED, 664 NFSERR_GRACE, 665 NFSERR_INVAL, 666 NFSERR_ISDIR, 667 NFSERR_LEASEMOVED, 668 NFSERR_LOCKNOTSUPP, 669 NFSERR_LOCKRANGE, 670 NFSERR_MOVED, 671 NFSERR_NOFILEHANDLE, 672 NFSERR_NOGRACE, 673 NFSERR_OLDSTATEID, 674 NFSERR_OPENMODE, 675 NFSERR_RECLAIMBAD, 676 NFSERR_RECLAIMCONFLICT, 677 NFSERR_RESOURCE, 678 NFSERR_SERVERFAULT, 679 NFSERR_STALE, 680 NFSERR_STALECLIENTID, 681 NFSERR_STALESTATEID, 682 0, 683 }; 684 685 static short nfsv4err_lockt[] = { 686 NFSERR_SERVERFAULT, 687 NFSERR_ACCES, 688 NFSERR_BADHANDLE, 689 NFSERR_BADRANGE, 690 NFSERR_BADXDR, 691 NFSERR_DELAY, 692 NFSERR_DENIED, 693 NFSERR_FHEXPIRED, 694 NFSERR_GRACE, 695 NFSERR_INVAL, 696 NFSERR_ISDIR, 697 NFSERR_LEASEMOVED, 698 NFSERR_LOCKRANGE, 699 NFSERR_MOVED, 700 NFSERR_NOFILEHANDLE, 701 NFSERR_RESOURCE, 702 NFSERR_SERVERFAULT, 703 NFSERR_STALE, 704 NFSERR_STALECLIENTID, 705 0, 706 }; 707 708 static short nfsv4err_locku[] = { 709 NFSERR_SERVERFAULT, 710 NFSERR_ACCES, 711 NFSERR_ADMINREVOKED, 712 NFSERR_BADHANDLE, 713 NFSERR_BADRANGE, 714 NFSERR_BADSEQID, 715 NFSERR_BADSTATEID, 716 NFSERR_BADXDR, 717 NFSERR_EXPIRED, 718 NFSERR_FHEXPIRED, 719 NFSERR_GRACE, 720 NFSERR_INVAL, 721 NFSERR_ISDIR, 722 NFSERR_LEASEMOVED, 723 NFSERR_LOCKRANGE, 724 NFSERR_MOVED, 725 NFSERR_NOFILEHANDLE, 726 NFSERR_OLDSTATEID, 727 NFSERR_RESOURCE, 728 NFSERR_SERVERFAULT, 729 NFSERR_STALE, 730 NFSERR_STALESTATEID, 731 0, 732 }; 733 734 static short nfsv4err_lookup[] = { 735 NFSERR_IO, 736 NFSERR_ACCES, 737 NFSERR_BADCHAR, 738 NFSERR_BADHANDLE, 739 NFSERR_BADNAME, 740 NFSERR_BADXDR, 741 NFSERR_FHEXPIRED, 742 NFSERR_INVAL, 743 NFSERR_IO, 744 NFSERR_MOVED, 745 NFSERR_NAMETOL, 746 NFSERR_NOENT, 747 NFSERR_NOFILEHANDLE, 748 NFSERR_NOTDIR, 749 NFSERR_RESOURCE, 750 NFSERR_SERVERFAULT, 751 NFSERR_STALE, 752 NFSERR_SYMLINK, 753 NFSERR_WRONGSEC, 754 0, 755 }; 756 757 static short nfsv4err_lookupp[] = { 758 NFSERR_IO, 759 NFSERR_ACCES, 760 NFSERR_BADHANDLE, 761 NFSERR_FHEXPIRED, 762 NFSERR_IO, 763 NFSERR_MOVED, 764 NFSERR_NOENT, 765 NFSERR_NOFILEHANDLE, 766 NFSERR_NOTDIR, 767 NFSERR_RESOURCE, 768 NFSERR_SERVERFAULT, 769 NFSERR_STALE, 770 0, 771 }; 772 773 static short nfsv4err_nverify[] = { 774 NFSERR_IO, 775 NFSERR_ACCES, 776 NFSERR_ATTRNOTSUPP, 777 NFSERR_BADCHAR, 778 NFSERR_BADHANDLE, 779 NFSERR_BADXDR, 780 NFSERR_DELAY, 781 NFSERR_FHEXPIRED, 782 NFSERR_INVAL, 783 NFSERR_IO, 784 NFSERR_MOVED, 785 NFSERR_NOFILEHANDLE, 786 NFSERR_RESOURCE, 787 NFSERR_SAME, 788 NFSERR_SERVERFAULT, 789 NFSERR_STALE, 790 0, 791 }; 792 793 static short nfsv4err_open[] = { 794 NFSERR_IO, 795 NFSERR_ACCES, 796 NFSERR_ADMINREVOKED, 797 NFSERR_ATTRNOTSUPP, 798 NFSERR_BADCHAR, 799 NFSERR_BADHANDLE, 800 NFSERR_BADNAME, 801 NFSERR_BADOWNER, 802 NFSERR_BADSEQID, 803 NFSERR_BADXDR, 804 NFSERR_DELAY, 805 NFSERR_DQUOT, 806 NFSERR_EXIST, 807 NFSERR_EXPIRED, 808 NFSERR_FHEXPIRED, 809 NFSERR_GRACE, 810 NFSERR_IO, 811 NFSERR_INVAL, 812 NFSERR_ISDIR, 813 NFSERR_LEASEMOVED, 814 NFSERR_MOVED, 815 NFSERR_NAMETOL, 816 NFSERR_NOENT, 817 NFSERR_NOFILEHANDLE, 818 NFSERR_NOGRACE, 819 NFSERR_NOSPC, 820 NFSERR_NOTDIR, 821 NFSERR_NOTSUPP, 822 NFSERR_PERM, 823 NFSERR_RECLAIMBAD, 824 NFSERR_RECLAIMCONFLICT, 825 NFSERR_RESOURCE, 826 NFSERR_ROFS, 827 NFSERR_SERVERFAULT, 828 NFSERR_SHAREDENIED, 829 NFSERR_STALE, 830 NFSERR_STALECLIENTID, 831 NFSERR_SYMLINK, 832 NFSERR_WRONGSEC, 833 0, 834 }; 835 836 static short nfsv4err_openattr[] = { 837 NFSERR_IO, 838 NFSERR_ACCES, 839 NFSERR_BADHANDLE, 840 NFSERR_BADXDR, 841 NFSERR_DELAY, 842 NFSERR_DQUOT, 843 NFSERR_FHEXPIRED, 844 NFSERR_IO, 845 NFSERR_MOVED, 846 NFSERR_NOENT, 847 NFSERR_NOFILEHANDLE, 848 NFSERR_NOSPC, 849 NFSERR_NOTSUPP, 850 NFSERR_RESOURCE, 851 NFSERR_ROFS, 852 NFSERR_SERVERFAULT, 853 NFSERR_STALE, 854 0, 855 }; 856 857 static short nfsv4err_openconfirm[] = { 858 NFSERR_SERVERFAULT, 859 NFSERR_ADMINREVOKED, 860 NFSERR_BADHANDLE, 861 NFSERR_BADSEQID, 862 NFSERR_BADSTATEID, 863 NFSERR_BADXDR, 864 NFSERR_EXPIRED, 865 NFSERR_FHEXPIRED, 866 NFSERR_INVAL, 867 NFSERR_ISDIR, 868 NFSERR_MOVED, 869 NFSERR_NOFILEHANDLE, 870 NFSERR_OLDSTATEID, 871 NFSERR_RESOURCE, 872 NFSERR_SERVERFAULT, 873 NFSERR_STALE, 874 NFSERR_STALESTATEID, 875 0, 876 }; 877 878 static short nfsv4err_opendowngrade[] = { 879 NFSERR_SERVERFAULT, 880 NFSERR_ADMINREVOKED, 881 NFSERR_BADHANDLE, 882 NFSERR_BADSEQID, 883 NFSERR_BADSTATEID, 884 NFSERR_BADXDR, 885 NFSERR_EXPIRED, 886 NFSERR_FHEXPIRED, 887 NFSERR_INVAL, 888 NFSERR_MOVED, 889 NFSERR_NOFILEHANDLE, 890 NFSERR_OLDSTATEID, 891 NFSERR_RESOURCE, 892 NFSERR_SERVERFAULT, 893 NFSERR_STALE, 894 NFSERR_STALESTATEID, 895 0, 896 }; 897 898 static short nfsv4err_putfh[] = { 899 NFSERR_SERVERFAULT, 900 NFSERR_BADHANDLE, 901 NFSERR_BADXDR, 902 NFSERR_FHEXPIRED, 903 NFSERR_MOVED, 904 NFSERR_RESOURCE, 905 NFSERR_SERVERFAULT, 906 NFSERR_STALE, 907 NFSERR_WRONGSEC, 908 0, 909 }; 910 911 static short nfsv4err_putpubfh[] = { 912 NFSERR_SERVERFAULT, 913 NFSERR_RESOURCE, 914 NFSERR_SERVERFAULT, 915 NFSERR_WRONGSEC, 916 0, 917 }; 918 919 static short nfsv4err_putrootfh[] = { 920 NFSERR_SERVERFAULT, 921 NFSERR_RESOURCE, 922 NFSERR_SERVERFAULT, 923 NFSERR_WRONGSEC, 924 0, 925 }; 926 927 static short nfsv4err_read[] = { 928 NFSERR_IO, 929 NFSERR_ACCES, 930 NFSERR_ADMINREVOKED, 931 NFSERR_BADHANDLE, 932 NFSERR_BADSTATEID, 933 NFSERR_BADXDR, 934 NFSERR_DELAY, 935 NFSERR_EXPIRED, 936 NFSERR_FHEXPIRED, 937 NFSERR_GRACE, 938 NFSERR_IO, 939 NFSERR_INVAL, 940 NFSERR_ISDIR, 941 NFSERR_LEASEMOVED, 942 NFSERR_LOCKED, 943 NFSERR_MOVED, 944 NFSERR_NOFILEHANDLE, 945 NFSERR_NXIO, 946 NFSERR_OLDSTATEID, 947 NFSERR_OPENMODE, 948 NFSERR_RESOURCE, 949 NFSERR_SERVERFAULT, 950 NFSERR_STALE, 951 NFSERR_STALESTATEID, 952 0, 953 }; 954 955 static short nfsv4err_readdir[] = { 956 NFSERR_IO, 957 NFSERR_ACCES, 958 NFSERR_BADHANDLE, 959 NFSERR_BAD_COOKIE, 960 NFSERR_BADXDR, 961 NFSERR_DELAY, 962 NFSERR_FHEXPIRED, 963 NFSERR_INVAL, 964 NFSERR_IO, 965 NFSERR_MOVED, 966 NFSERR_NOFILEHANDLE, 967 NFSERR_NOTDIR, 968 NFSERR_NOTSAME, 969 NFSERR_RESOURCE, 970 NFSERR_SERVERFAULT, 971 NFSERR_STALE, 972 NFSERR_TOOSMALL, 973 0, 974 }; 975 976 static short nfsv4err_readlink[] = { 977 NFSERR_IO, 978 NFSERR_ACCES, 979 NFSERR_BADHANDLE, 980 NFSERR_DELAY, 981 NFSERR_FHEXPIRED, 982 NFSERR_INVAL, 983 NFSERR_IO, 984 NFSERR_ISDIR, 985 NFSERR_MOVED, 986 NFSERR_NOFILEHANDLE, 987 NFSERR_NOTSUPP, 988 NFSERR_RESOURCE, 989 NFSERR_SERVERFAULT, 990 NFSERR_STALE, 991 0, 992 }; 993 994 static short nfsv4err_remove[] = { 995 NFSERR_IO, 996 NFSERR_ACCES, 997 NFSERR_BADCHAR, 998 NFSERR_BADHANDLE, 999 NFSERR_BADNAME, 1000 NFSERR_BADXDR, 1001 NFSERR_DELAY, 1002 NFSERR_FHEXPIRED, 1003 NFSERR_FILEOPEN, 1004 NFSERR_INVAL, 1005 NFSERR_IO, 1006 NFSERR_MOVED, 1007 NFSERR_NAMETOL, 1008 NFSERR_NOENT, 1009 NFSERR_NOFILEHANDLE, 1010 NFSERR_NOTDIR, 1011 NFSERR_NOTEMPTY, 1012 NFSERR_RESOURCE, 1013 NFSERR_ROFS, 1014 NFSERR_SERVERFAULT, 1015 NFSERR_STALE, 1016 0, 1017 }; 1018 1019 static short nfsv4err_rename[] = { 1020 NFSERR_IO, 1021 NFSERR_ACCES, 1022 NFSERR_BADCHAR, 1023 NFSERR_BADHANDLE, 1024 NFSERR_BADNAME, 1025 NFSERR_BADXDR, 1026 NFSERR_DELAY, 1027 NFSERR_DQUOT, 1028 NFSERR_EXIST, 1029 NFSERR_FHEXPIRED, 1030 NFSERR_FILEOPEN, 1031 NFSERR_INVAL, 1032 NFSERR_IO, 1033 NFSERR_MOVED, 1034 NFSERR_NAMETOL, 1035 NFSERR_NOENT, 1036 NFSERR_NOFILEHANDLE, 1037 NFSERR_NOSPC, 1038 NFSERR_NOTDIR, 1039 NFSERR_NOTEMPTY, 1040 NFSERR_RESOURCE, 1041 NFSERR_ROFS, 1042 NFSERR_SERVERFAULT, 1043 NFSERR_STALE, 1044 NFSERR_WRONGSEC, 1045 NFSERR_XDEV, 1046 0, 1047 }; 1048 1049 static short nfsv4err_renew[] = { 1050 NFSERR_SERVERFAULT, 1051 NFSERR_ACCES, 1052 NFSERR_ADMINREVOKED, 1053 NFSERR_BADXDR, 1054 NFSERR_CBPATHDOWN, 1055 NFSERR_EXPIRED, 1056 NFSERR_LEASEMOVED, 1057 NFSERR_RESOURCE, 1058 NFSERR_SERVERFAULT, 1059 NFSERR_STALECLIENTID, 1060 0, 1061 }; 1062 1063 static short nfsv4err_restorefh[] = { 1064 NFSERR_SERVERFAULT, 1065 NFSERR_BADHANDLE, 1066 NFSERR_FHEXPIRED, 1067 NFSERR_MOVED, 1068 NFSERR_RESOURCE, 1069 NFSERR_RESTOREFH, 1070 NFSERR_SERVERFAULT, 1071 NFSERR_STALE, 1072 NFSERR_WRONGSEC, 1073 0, 1074 }; 1075 1076 static short nfsv4err_savefh[] = { 1077 NFSERR_SERVERFAULT, 1078 NFSERR_BADHANDLE, 1079 NFSERR_FHEXPIRED, 1080 NFSERR_MOVED, 1081 NFSERR_NOFILEHANDLE, 1082 NFSERR_RESOURCE, 1083 NFSERR_SERVERFAULT, 1084 NFSERR_STALE, 1085 0, 1086 }; 1087 1088 static short nfsv4err_secinfo[] = { 1089 NFSERR_SERVERFAULT, 1090 NFSERR_ACCES, 1091 NFSERR_BADCHAR, 1092 NFSERR_BADHANDLE, 1093 NFSERR_BADNAME, 1094 NFSERR_BADXDR, 1095 NFSERR_FHEXPIRED, 1096 NFSERR_INVAL, 1097 NFSERR_MOVED, 1098 NFSERR_NAMETOL, 1099 NFSERR_NOENT, 1100 NFSERR_NOFILEHANDLE, 1101 NFSERR_NOTDIR, 1102 NFSERR_RESOURCE, 1103 NFSERR_SERVERFAULT, 1104 NFSERR_STALE, 1105 0, 1106 }; 1107 1108 static short nfsv4err_setattr[] = { 1109 NFSERR_IO, 1110 NFSERR_ACCES, 1111 NFSERR_ADMINREVOKED, 1112 NFSERR_ATTRNOTSUPP, 1113 NFSERR_BADCHAR, 1114 NFSERR_BADHANDLE, 1115 NFSERR_BADOWNER, 1116 NFSERR_BADSTATEID, 1117 NFSERR_BADXDR, 1118 NFSERR_DELAY, 1119 NFSERR_DQUOT, 1120 NFSERR_EXPIRED, 1121 NFSERR_FBIG, 1122 NFSERR_FHEXPIRED, 1123 NFSERR_GRACE, 1124 NFSERR_INVAL, 1125 NFSERR_IO, 1126 NFSERR_ISDIR, 1127 NFSERR_LOCKED, 1128 NFSERR_MOVED, 1129 NFSERR_NOFILEHANDLE, 1130 NFSERR_NOSPC, 1131 NFSERR_OLDSTATEID, 1132 NFSERR_OPENMODE, 1133 NFSERR_PERM, 1134 NFSERR_RESOURCE, 1135 NFSERR_ROFS, 1136 NFSERR_SERVERFAULT, 1137 NFSERR_STALE, 1138 NFSERR_STALESTATEID, 1139 0, 1140 }; 1141 1142 static short nfsv4err_setclientid[] = { 1143 NFSERR_SERVERFAULT, 1144 NFSERR_BADXDR, 1145 NFSERR_CLIDINUSE, 1146 NFSERR_INVAL, 1147 NFSERR_RESOURCE, 1148 NFSERR_SERVERFAULT, 1149 NFSERR_WRONGSEC, 1150 0, 1151 }; 1152 1153 static short nfsv4err_setclientidconfirm[] = { 1154 NFSERR_SERVERFAULT, 1155 NFSERR_BADXDR, 1156 NFSERR_CLIDINUSE, 1157 NFSERR_RESOURCE, 1158 NFSERR_SERVERFAULT, 1159 NFSERR_STALECLIENTID, 1160 0, 1161 }; 1162 1163 static short nfsv4err_verify[] = { 1164 NFSERR_SERVERFAULT, 1165 NFSERR_ACCES, 1166 NFSERR_ATTRNOTSUPP, 1167 NFSERR_BADCHAR, 1168 NFSERR_BADHANDLE, 1169 NFSERR_BADXDR, 1170 NFSERR_DELAY, 1171 NFSERR_FHEXPIRED, 1172 NFSERR_INVAL, 1173 NFSERR_MOVED, 1174 NFSERR_NOFILEHANDLE, 1175 NFSERR_NOTSAME, 1176 NFSERR_RESOURCE, 1177 NFSERR_SERVERFAULT, 1178 NFSERR_STALE, 1179 0, 1180 }; 1181 1182 static short nfsv4err_write[] = { 1183 NFSERR_IO, 1184 NFSERR_ACCES, 1185 NFSERR_ADMINREVOKED, 1186 NFSERR_BADHANDLE, 1187 NFSERR_BADSTATEID, 1188 NFSERR_BADXDR, 1189 NFSERR_DELAY, 1190 NFSERR_DQUOT, 1191 NFSERR_EXPIRED, 1192 NFSERR_FBIG, 1193 NFSERR_FHEXPIRED, 1194 NFSERR_GRACE, 1195 NFSERR_INVAL, 1196 NFSERR_IO, 1197 NFSERR_ISDIR, 1198 NFSERR_LEASEMOVED, 1199 NFSERR_LOCKED, 1200 NFSERR_MOVED, 1201 NFSERR_NOFILEHANDLE, 1202 NFSERR_NOSPC, 1203 NFSERR_NXIO, 1204 NFSERR_OLDSTATEID, 1205 NFSERR_OPENMODE, 1206 NFSERR_RESOURCE, 1207 NFSERR_ROFS, 1208 NFSERR_SERVERFAULT, 1209 NFSERR_STALE, 1210 NFSERR_STALESTATEID, 1211 0, 1212 }; 1213 1214 static short nfsv4err_releaselockowner[] = { 1215 NFSERR_SERVERFAULT, 1216 NFSERR_ADMINREVOKED, 1217 NFSERR_BADXDR, 1218 NFSERR_EXPIRED, 1219 NFSERR_LEASEMOVED, 1220 NFSERR_LOCKSHELD, 1221 NFSERR_RESOURCE, 1222 NFSERR_SERVERFAULT, 1223 NFSERR_STALECLIENTID, 1224 0, 1225 }; 1226 1227 static short *nfsrv_v4errmap[] = { 1228 nfsv4err_null, 1229 nfsv4err_null, 1230 nfsv4err_null, 1231 nfsv4err_access, 1232 nfsv4err_close, 1233 nfsv4err_commit, 1234 nfsv4err_create, 1235 nfsv4err_delegpurge, 1236 nfsv4err_delegreturn, 1237 nfsv4err_getattr, 1238 nfsv4err_getfh, 1239 nfsv4err_link, 1240 nfsv4err_lock, 1241 nfsv4err_lockt, 1242 nfsv4err_locku, 1243 nfsv4err_lookup, 1244 nfsv4err_lookupp, 1245 nfsv4err_nverify, 1246 nfsv4err_open, 1247 nfsv4err_openattr, 1248 nfsv4err_openconfirm, 1249 nfsv4err_opendowngrade, 1250 nfsv4err_putfh, 1251 nfsv4err_putpubfh, 1252 nfsv4err_putrootfh, 1253 nfsv4err_read, 1254 nfsv4err_readdir, 1255 nfsv4err_readlink, 1256 nfsv4err_remove, 1257 nfsv4err_rename, 1258 nfsv4err_renew, 1259 nfsv4err_restorefh, 1260 nfsv4err_savefh, 1261 nfsv4err_secinfo, 1262 nfsv4err_setattr, 1263 nfsv4err_setclientid, 1264 nfsv4err_setclientidconfirm, 1265 nfsv4err_verify, 1266 nfsv4err_write, 1267 nfsv4err_releaselockowner, 1268 }; 1269 1270 /* 1271 * A fiddled version of m_adj() that ensures null fill to a long 1272 * boundary and only trims off the back end 1273 */ 1274 void 1275 nfsrv_adj(mbuf_t mp, int len, int nul) 1276 { 1277 mbuf_t m; 1278 int count, i; 1279 char *cp; 1280 1281 /* 1282 * Trim from tail. Scan the mbuf chain, 1283 * calculating its length and finding the last mbuf. 1284 * If the adjustment only affects this mbuf, then just 1285 * adjust and return. Otherwise, rescan and truncate 1286 * after the remaining size. 1287 */ 1288 count = 0; 1289 m = mp; 1290 for (;;) { 1291 count += mbuf_len(m); 1292 if (mbuf_next(m) == NULL) 1293 break; 1294 m = mbuf_next(m); 1295 } 1296 if (mbuf_len(m) > len) { 1297 mbuf_setlen(m, mbuf_len(m) - len); 1298 if (nul > 0) { 1299 cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul; 1300 for (i = 0; i < nul; i++) 1301 *cp++ = '\0'; 1302 } 1303 return; 1304 } 1305 count -= len; 1306 if (count < 0) 1307 count = 0; 1308 /* 1309 * Correct length for chain is "count". 1310 * Find the mbuf with last data, adjust its length, 1311 * and toss data from remaining mbufs on chain. 1312 */ 1313 for (m = mp; m; m = mbuf_next(m)) { 1314 if (mbuf_len(m) >= count) { 1315 mbuf_setlen(m, count); 1316 if (nul > 0) { 1317 cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul; 1318 for (i = 0; i < nul; i++) 1319 *cp++ = '\0'; 1320 } 1321 break; 1322 } 1323 count -= mbuf_len(m); 1324 } 1325 for (m = mbuf_next(m); m; m = mbuf_next(m)) 1326 mbuf_setlen(m, 0); 1327 } 1328 1329 /* 1330 * Make these functions instead of macros, so that the kernel text size 1331 * doesn't get too big... 1332 */ 1333 void 1334 nfsrv_wcc(struct nfsrv_descript *nd, int before_ret, 1335 struct nfsvattr *before_nvap, int after_ret, struct nfsvattr *after_nvap) 1336 { 1337 u_int32_t *tl; 1338 1339 if (before_ret) { 1340 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1341 *tl = newnfs_false; 1342 } else { 1343 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 1344 *tl++ = newnfs_true; 1345 txdr_hyper(before_nvap->na_size, tl); 1346 tl += 2; 1347 txdr_nfsv3time(&(before_nvap->na_mtime), tl); 1348 tl += 2; 1349 txdr_nfsv3time(&(before_nvap->na_ctime), tl); 1350 } 1351 nfsrv_postopattr(nd, after_ret, after_nvap); 1352 } 1353 1354 void 1355 nfsrv_postopattr(struct nfsrv_descript *nd, int after_ret, 1356 struct nfsvattr *after_nvap) 1357 { 1358 u_int32_t *tl; 1359 1360 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1361 if (after_ret) 1362 *tl = newnfs_false; 1363 else { 1364 *tl = newnfs_true; 1365 nfsrv_fillattr(nd, after_nvap); 1366 } 1367 } 1368 1369 /* 1370 * Fill in file attributes for V2 and 3. For V4, call a separate 1371 * routine that sifts through all the attribute bits. 1372 */ 1373 void 1374 nfsrv_fillattr(struct nfsrv_descript *nd, struct nfsvattr *nvap) 1375 { 1376 struct nfs_fattr *fp; 1377 int fattr_size; 1378 1379 /* 1380 * Build space for the attribute structure. 1381 */ 1382 if (nd->nd_flag & ND_NFSV3) 1383 fattr_size = NFSX_V3FATTR; 1384 else 1385 fattr_size = NFSX_V2FATTR; 1386 NFSM_BUILD(fp, struct nfs_fattr *, fattr_size); 1387 1388 /* 1389 * Now just fill it all in. 1390 */ 1391 fp->fa_nlink = txdr_unsigned(nvap->na_nlink); 1392 fp->fa_uid = txdr_unsigned(nvap->na_uid); 1393 fp->fa_gid = txdr_unsigned(nvap->na_gid); 1394 if (nd->nd_flag & ND_NFSV3) { 1395 fp->fa_type = vtonfsv34_type(nvap->na_type); 1396 fp->fa_mode = vtonfsv34_mode(nvap->na_mode); 1397 txdr_hyper(nvap->na_size, (uint32_t*)&fp->fa3_size); 1398 txdr_hyper(nvap->na_bytes, (uint32_t*)&fp->fa3_used); 1399 fp->fa3_rdev.specdata1 = txdr_unsigned(NFSMAJOR(nvap->na_rdev)); 1400 fp->fa3_rdev.specdata2 = txdr_unsigned(NFSMINOR(nvap->na_rdev)); 1401 fp->fa3_fsid.nfsuquad[0] = 0; 1402 fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(nvap->na_fsid); 1403 txdr_hyper(nvap->na_fileid, (uint32_t*)&fp->fa3_fileid); 1404 txdr_nfsv3time(&nvap->na_atime, &fp->fa3_atime); 1405 txdr_nfsv3time(&nvap->na_mtime, &fp->fa3_mtime); 1406 txdr_nfsv3time(&nvap->na_ctime, &fp->fa3_ctime); 1407 } else { 1408 fp->fa_type = vtonfsv2_type(nvap->na_type); 1409 fp->fa_mode = vtonfsv2_mode(nvap->na_type, nvap->na_mode); 1410 fp->fa2_size = txdr_unsigned(nvap->na_size); 1411 fp->fa2_blocksize = txdr_unsigned(nvap->na_blocksize); 1412 if (nvap->na_type == VFIFO) 1413 fp->fa2_rdev = 0xffffffff; 1414 else 1415 fp->fa2_rdev = txdr_unsigned(nvap->na_rdev); 1416 fp->fa2_blocks = txdr_unsigned(nvap->na_bytes / NFS_FABLKSIZE); 1417 fp->fa2_fsid = txdr_unsigned(nvap->na_fsid); 1418 fp->fa2_fileid = txdr_unsigned(nvap->na_fileid); 1419 txdr_nfsv2time(&nvap->na_atime, &fp->fa2_atime); 1420 txdr_nfsv2time(&nvap->na_mtime, &fp->fa2_mtime); 1421 txdr_nfsv2time(&nvap->na_ctime, &fp->fa2_ctime); 1422 } 1423 } 1424 1425 /* 1426 * This function gets a file handle out of an mbuf list. 1427 * It returns 0 for success, EBADRPC otherwise. 1428 * If sets the third flagp argument to 1 if the file handle is 1429 * the public file handle. 1430 * For NFSv4, if the length is incorrect, set nd_repstat == NFSERR_BADHANDLE 1431 */ 1432 int 1433 nfsrv_mtofh(struct nfsrv_descript *nd, struct nfsrvfh *fhp) 1434 { 1435 u_int32_t *tl; 1436 int error = 0, len, copylen; 1437 1438 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1439 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1440 len = fxdr_unsigned(int, *tl); 1441 if (len == 0 && nfs_pubfhset && (nd->nd_flag & ND_NFSV3) && 1442 nd->nd_procnum == NFSPROC_LOOKUP) { 1443 nd->nd_flag |= ND_PUBLOOKUP; 1444 goto nfsmout; 1445 } 1446 copylen = len; 1447 1448 /* If len == NFSX_V4PNFSFH the RPC is a pNFS DS one. */ 1449 if (len == NFSX_V4PNFSFH && (nd->nd_flag & ND_NFSV41) != 0) { 1450 copylen = NFSX_MYFH; 1451 len = NFSM_RNDUP(len); 1452 nd->nd_flag |= ND_DSSERVER; 1453 } else if (len < NFSRV_MINFH || len > NFSRV_MAXFH) { 1454 if (nd->nd_flag & ND_NFSV4) { 1455 if (len > 0 && len <= NFSX_V4FHMAX) { 1456 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 1457 if (error) 1458 goto nfsmout; 1459 nd->nd_repstat = NFSERR_BADHANDLE; 1460 goto nfsmout; 1461 } else { 1462 error = EBADRPC; 1463 goto nfsmout; 1464 } 1465 } else { 1466 error = EBADRPC; 1467 goto nfsmout; 1468 } 1469 } 1470 } else { 1471 /* 1472 * For NFSv2, the file handle is always 32 bytes on the 1473 * wire, but this server only cares about the first 1474 * NFSRV_MAXFH bytes. 1475 */ 1476 len = NFSX_V2FH; 1477 copylen = NFSRV_MAXFH; 1478 } 1479 NFSM_DISSECT(tl, u_int32_t *, len); 1480 if ((nd->nd_flag & ND_NFSV2) && nfs_pubfhset && 1481 nd->nd_procnum == NFSPROC_LOOKUP && 1482 !NFSBCMP((caddr_t)tl, nfs_v2pubfh, NFSX_V2FH)) { 1483 nd->nd_flag |= ND_PUBLOOKUP; 1484 goto nfsmout; 1485 } 1486 NFSBCOPY(tl, (caddr_t)fhp->nfsrvfh_data, copylen); 1487 fhp->nfsrvfh_len = copylen; 1488 nfsmout: 1489 NFSEXITCODE2(error, nd); 1490 return (error); 1491 } 1492 1493 /* 1494 * Map errnos to NFS error numbers. For Version 3 and 4 also filter out error 1495 * numbers not specified for the associated procedure. 1496 * NFSPROC_NOOP is a special case, where the high order bits of nd_repstat 1497 * should be cleared. NFSPROC_NOOP is used to return errors when a valid 1498 * RPC procedure is not involved. 1499 * Returns the error number in XDR. 1500 */ 1501 int 1502 nfsd_errmap(struct nfsrv_descript *nd) 1503 { 1504 short *defaulterrp, *errp; 1505 1506 if (!nd->nd_repstat) 1507 return (0); 1508 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1509 if (nd->nd_procnum == NFSPROC_NOOP) 1510 return (txdr_unsigned(nd->nd_repstat & 0xffff)); 1511 if (nd->nd_flag & ND_NFSV3) 1512 errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; 1513 else if (nd->nd_repstat == EBADRPC) 1514 return (txdr_unsigned(NFSERR_BADXDR)); 1515 else if (nd->nd_repstat == NFSERR_MINORVERMISMATCH || 1516 nd->nd_repstat == NFSERR_OPILLEGAL) 1517 return (txdr_unsigned(nd->nd_repstat)); 1518 else if (nd->nd_repstat == NFSERR_REPLYFROMCACHE) 1519 return (txdr_unsigned(NFSERR_IO)); 1520 else if ((nd->nd_flag & ND_NFSV41) != 0) { 1521 if (nd->nd_repstat == EOPNOTSUPP) 1522 nd->nd_repstat = NFSERR_NOTSUPP; 1523 nd->nd_repstat = nfsrv_isannfserr(nd->nd_repstat); 1524 return (txdr_unsigned(nd->nd_repstat)); 1525 } else 1526 errp = defaulterrp = nfsrv_v4errmap[nd->nd_procnum]; 1527 while (*++errp) 1528 if (*errp == nd->nd_repstat) 1529 return (txdr_unsigned(nd->nd_repstat)); 1530 return (txdr_unsigned(*defaulterrp)); 1531 } 1532 if (nd->nd_repstat <= NFSERR_REMOTE) 1533 return (txdr_unsigned(nfsrv_v2errmap[nd->nd_repstat - 1])); 1534 return (txdr_unsigned(NFSERR_IO)); 1535 } 1536 1537 /* 1538 * Check to see if the error is a valid NFS one. If not, replace it with 1539 * NFSERR_IO. 1540 */ 1541 static u_int32_t 1542 nfsrv_isannfserr(u_int32_t errval) 1543 { 1544 1545 if (errval == NFSERR_OK) 1546 return (errval); 1547 if (errval >= NFSERR_BADHANDLE && errval <= NFSERR_DELEGREVOKED) 1548 return (errval); 1549 if (errval > 0 && errval <= NFSERR_REMOTE) 1550 return (nfsrv_v2errmap[errval - 1]); 1551 return (NFSERR_IO); 1552 } 1553 1554 /* 1555 * Check to see if setting a uid/gid is permitted when creating a new 1556 * file object. (Called when uid and/or gid is specified in the 1557 * settable attributes for V4. 1558 */ 1559 int 1560 nfsrv_checkuidgid(struct nfsrv_descript *nd, struct nfsvattr *nvap) 1561 { 1562 int error = 0; 1563 1564 /* 1565 * If not setting either uid nor gid, it's OK. 1566 */ 1567 if (NFSVNO_NOTSETUID(nvap) && NFSVNO_NOTSETGID(nvap)) 1568 goto out; 1569 if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid == nfsrv_defaultuid && 1570 enable_nobodycheck == 1) 1571 || (NFSVNO_ISSETGID(nvap) && nvap->na_gid == nfsrv_defaultgid && 1572 enable_nogroupcheck == 1)) { 1573 error = NFSERR_BADOWNER; 1574 goto out; 1575 } 1576 if (nd->nd_cred->cr_uid == 0) 1577 goto out; 1578 if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid != nd->nd_cred->cr_uid) || 1579 (NFSVNO_ISSETGID(nvap) && nvap->na_gid != nd->nd_cred->cr_gid && 1580 !groupmember(nvap->na_gid, nd->nd_cred))) 1581 error = NFSERR_PERM; 1582 1583 out: 1584 NFSEXITCODE2(error, nd); 1585 return (error); 1586 } 1587 1588 /* 1589 * and this routine fixes up the settable attributes for V4 if allowed 1590 * by nfsrv_checkuidgid(). 1591 */ 1592 void 1593 nfsrv_fixattr(struct nfsrv_descript *nd, vnode_t vp, 1594 struct nfsvattr *nvap, NFSACL_T *aclp, NFSPROC_T *p, nfsattrbit_t *attrbitp, 1595 struct nfsexstuff *exp) 1596 { 1597 int change = 0; 1598 struct nfsvattr nva; 1599 uid_t tuid; 1600 int error; 1601 nfsattrbit_t nattrbits; 1602 1603 /* 1604 * Maybe this should be done for V2 and 3 but it never has been 1605 * and nobody seems to be upset, so I think it's best not to change 1606 * the V2 and 3 semantics. 1607 */ 1608 if ((nd->nd_flag & ND_NFSV4) == 0) 1609 goto out; 1610 NFSVNO_ATTRINIT(&nva); 1611 NFSZERO_ATTRBIT(&nattrbits); 1612 tuid = nd->nd_cred->cr_uid; 1613 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNER) && 1614 NFSVNO_ISSETUID(nvap) && 1615 nvap->na_uid != nd->nd_cred->cr_uid) { 1616 if (nd->nd_cred->cr_uid == 0) { 1617 nva.na_uid = nvap->na_uid; 1618 change++; 1619 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNER); 1620 } else { 1621 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNER); 1622 } 1623 } 1624 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEACCESSSET) && 1625 NFSVNO_ISSETATIME(nvap)) { 1626 nva.na_atime = nvap->na_atime; 1627 change++; 1628 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEACCESSSET); 1629 } 1630 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEMODIFYSET) && 1631 NFSVNO_ISSETMTIME(nvap)) { 1632 nva.na_mtime = nvap->na_mtime; 1633 change++; 1634 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEMODIFYSET); 1635 } 1636 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP) && 1637 NFSVNO_ISSETGID(nvap)) { 1638 if (nvap->na_gid == nd->nd_cred->cr_gid || 1639 groupmember(nvap->na_gid, nd->nd_cred)) { 1640 nd->nd_cred->cr_uid = 0; 1641 nva.na_gid = nvap->na_gid; 1642 change++; 1643 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNERGROUP); 1644 } else { 1645 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP); 1646 } 1647 } 1648 if (change) { 1649 error = nfsvno_setattr(vp, &nva, nd->nd_cred, p, exp); 1650 if (error) { 1651 NFSCLRALL_ATTRBIT(attrbitp, &nattrbits); 1652 } 1653 } 1654 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_SIZE) && 1655 NFSVNO_ISSETSIZE(nvap) && nvap->na_size != (u_quad_t)0) { 1656 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_SIZE); 1657 } 1658 #ifdef NFS4_ACL_EXTATTR_NAME 1659 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_ACL) && 1660 nfsrv_useacl != 0 && aclp != NULL) { 1661 if (aclp->acl_cnt > 0) { 1662 error = nfsrv_setacl(vp, aclp, nd->nd_cred, p); 1663 if (error) { 1664 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL); 1665 } 1666 } 1667 } else 1668 #endif 1669 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL); 1670 nd->nd_cred->cr_uid = tuid; 1671 1672 out: 1673 NFSEXITCODE2(0, nd); 1674 } 1675 1676 /* 1677 * Translate an ASCII hex digit to it's binary value. Return -1 if the 1678 * char isn't a hex digit. 1679 */ 1680 static char 1681 nfsrv_hexdigit(char c, int *err) 1682 { 1683 1684 *err = 0; 1685 if (c >= '' && c <= '9') 1686 return (c - ''); 1687 if (c >= 'a' && c <= 'f') 1688 return (c - 'a' + ((char)10)); 1689 if (c >= 'A' && c <= 'F') 1690 return (c - 'A' + ((char)10)); 1691 /* Not valid ! */ 1692 *err = 1; 1693 return (1); /* BOGUS */ 1694 } 1695 1696 /* 1697 * Check to see if NFSERR_MOVED can be returned for this op. Return 1 iff 1698 * it can be. 1699 */ 1700 int 1701 nfsrv_errmoved(int op) 1702 { 1703 short *errp; 1704 1705 errp = nfsrv_v4errmap[op]; 1706 while (*errp != 0) { 1707 if (*errp == NFSERR_MOVED) 1708 return (1); 1709 errp++; 1710 } 1711 return (0); 1712 } 1713 1714 /* 1715 * Fill in attributes for a Referral. 1716 * (Return the number of bytes of XDR created.) 1717 */ 1718 int 1719 nfsrv_putreferralattr(struct nfsrv_descript *nd, nfsattrbit_t *retbitp, 1720 struct nfsreferral *refp, int getattr, int *reterrp) 1721 { 1722 u_int32_t *tl, *retnump; 1723 u_char *cp, *cp2; 1724 int prefixnum, retnum = 0, i, len, bitpos, rderrbit = 0, nonrefbit = 0; 1725 int fslocationsbit = 0; 1726 nfsattrbit_t tmpbits, refbits; 1727 1728 NFSREFERRAL_ATTRBIT(&refbits); 1729 if (getattr) 1730 NFSCLRBIT_ATTRBIT(&refbits, NFSATTRBIT_RDATTRERROR); 1731 else if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_RDATTRERROR)) 1732 rderrbit = 1; 1733 if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_FSLOCATIONS)) 1734 fslocationsbit = 1; 1735 1736 /* 1737 * Check for the case where unsupported referral attributes are 1738 * requested. 1739 */ 1740 NFSSET_ATTRBIT(&tmpbits, retbitp); 1741 NFSCLRALL_ATTRBIT(&tmpbits, &refbits); 1742 if (NFSNONZERO_ATTRBIT(&tmpbits)) 1743 nonrefbit = 1; 1744 1745 if (nonrefbit && !fslocationsbit && (getattr || !rderrbit)) { 1746 *reterrp = NFSERR_MOVED; 1747 return (0); 1748 } 1749 1750 /* 1751 * Now we can fill in the attributes. 1752 */ 1753 NFSSET_ATTRBIT(&tmpbits, retbitp); 1754 NFSCLRNOT_ATTRBIT(&tmpbits, &refbits); 1755 1756 /* 1757 * Put out the attribute bitmap for the ones being filled in 1758 * and get the field for the number of attributes returned. 1759 */ 1760 prefixnum = nfsrv_putattrbit(nd, &tmpbits); 1761 NFSM_BUILD(retnump, u_int32_t *, NFSX_UNSIGNED); 1762 prefixnum += NFSX_UNSIGNED; 1763 1764 /* 1765 * Now, loop around filling in the attributes for each bit set. 1766 */ 1767 for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) { 1768 if (NFSISSET_ATTRBIT(&tmpbits, bitpos)) { 1769 switch (bitpos) { 1770 case NFSATTRBIT_TYPE: 1771 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1772 *tl = txdr_unsigned(NFDIR); 1773 retnum += NFSX_UNSIGNED; 1774 break; 1775 case NFSATTRBIT_FSID: 1776 NFSM_BUILD(tl, u_int32_t *, NFSX_V4FSID); 1777 *tl++ = 0; 1778 *tl++ = txdr_unsigned(NFSV4ROOT_FSID0); 1779 *tl++ = 0; 1780 *tl = txdr_unsigned(NFSV4ROOT_REFERRAL); 1781 retnum += NFSX_V4FSID; 1782 break; 1783 case NFSATTRBIT_RDATTRERROR: 1784 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1785 if (nonrefbit) 1786 *tl = txdr_unsigned(NFSERR_MOVED); 1787 else 1788 *tl = 0; 1789 retnum += NFSX_UNSIGNED; 1790 break; 1791 case NFSATTRBIT_FSLOCATIONS: 1792 retnum += nfsm_strtom(nd, "/", 1); 1793 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1794 *tl = txdr_unsigned(refp->nfr_srvcnt); 1795 retnum += NFSX_UNSIGNED; 1796 cp = refp->nfr_srvlist; 1797 for (i = 0; i < refp->nfr_srvcnt; i++) { 1798 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1799 *tl = txdr_unsigned(1); 1800 retnum += NFSX_UNSIGNED; 1801 cp2 = STRCHR(cp, ':'); 1802 if (cp2 != NULL) 1803 len = cp2 - cp; 1804 else 1805 len = 1; 1806 retnum += nfsm_strtom(nd, cp, len); 1807 if (cp2 != NULL) 1808 cp = cp2 + 1; 1809 cp2 = STRCHR(cp, ','); 1810 if (cp2 != NULL) 1811 len = cp2 - cp; 1812 else 1813 len = strlen(cp); 1814 retnum += nfsm_strtom(nd, cp, len); 1815 if (cp2 != NULL) 1816 cp = cp2 + 1; 1817 } 1818 break; 1819 case NFSATTRBIT_MOUNTEDONFILEID: 1820 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER); 1821 txdr_hyper(refp->nfr_dfileno, tl); 1822 retnum += NFSX_HYPER; 1823 break; 1824 default: 1825 printf("EEK! Bad V4 refattr bitpos=%d\n", bitpos); 1826 } 1827 } 1828 } 1829 *retnump = txdr_unsigned(retnum); 1830 return (retnum + prefixnum); 1831 } 1832 1833 /* 1834 * Parse a file name out of a request. 1835 */ 1836 int 1837 nfsrv_parsename(struct nfsrv_descript *nd, char *bufp, u_long *hashp, 1838 NFSPATHLEN_T *outlenp) 1839 { 1840 char *fromcp, *tocp, val = '\0'; 1841 mbuf_t md; 1842 int i; 1843 int rem, len, error = 0, pubtype = 0, outlen = 0, percent = 0; 1844 char digit; 1845 u_int32_t *tl; 1846 u_long hash = 0; 1847 1848 if (hashp != NULL) 1849 *hashp = 0; 1850 tocp = bufp; 1851 /* 1852 * For V4, check for lookup parent. 1853 * Otherwise, get the component name. 1854 */ 1855 if ((nd->nd_flag & ND_NFSV4) && nd->nd_procnum == NFSV4OP_LOOKUPP) { 1856 *tocp++ = '.'; 1857 hash += ((u_char)'.'); 1858 *tocp++ = '.'; 1859 hash += ((u_char)'.'); 1860 outlen = 2; 1861 } else { 1862 /* 1863 * First, get the name length. 1864 */ 1865 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1866 len = fxdr_unsigned(int, *tl); 1867 if (len > NFS_MAXNAMLEN) { 1868 nd->nd_repstat = NFSERR_NAMETOL; 1869 error = 0; 1870 goto nfsmout; 1871 } else if (len <= 0) { 1872 nd->nd_repstat = NFSERR_INVAL; 1873 error = 0; 1874 goto nfsmout; 1875 } 1876 1877 /* 1878 * Now, copy the component name into the buffer. 1879 */ 1880 fromcp = nd->nd_dpos; 1881 md = nd->nd_md; 1882 rem = NFSMTOD(md, caddr_t) + mbuf_len(md) - fromcp; 1883 for (i = 0; i < len; i++) { 1884 while (rem == 0) { 1885 md = mbuf_next(md); 1886 if (md == NULL) { 1887 error = EBADRPC; 1888 goto nfsmout; 1889 } 1890 fromcp = NFSMTOD(md, caddr_t); 1891 rem = mbuf_len(md); 1892 } 1893 if (*fromcp == '\0') { 1894 nd->nd_repstat = EACCES; 1895 error = 0; 1896 goto nfsmout; 1897 } 1898 /* 1899 * For lookups on the public filehandle, do some special 1900 * processing on the name. (The public file handle is the 1901 * root of the public file system for this server.) 1902 */ 1903 if (nd->nd_flag & ND_PUBLOOKUP) { 1904 /* 1905 * If the first char is ASCII, it is a canonical 1906 * path, otherwise it is a native path. (RFC2054 1907 * doesn't actually state what it is if the first 1908 * char isn't ASCII or 0x80, so I assume native.) 1909 * pubtype == 1 -> native path 1910 * pubtype == 2 -> canonical path 1911 */ 1912 if (i == 0) { 1913 if (*fromcp & 0x80) { 1914 /* 1915 * Since RFC2054 doesn't indicate 1916 * that a native path of just 0x80 1917 * isn't allowed, I'll replace the 1918 * 0x80 with '/' instead of just 1919 * throwing it away. 1920 */ 1921 *fromcp = '/'; 1922 pubtype = 1; 1923 } else { 1924 pubtype = 2; 1925 } 1926 } 1927 /* 1928 * '/' only allowed in a native path 1929 */ 1930 if (*fromcp == '/' && pubtype != 1) { 1931 nd->nd_repstat = EACCES; 1932 error = 0; 1933 goto nfsmout; 1934 } 1935 1936 /* 1937 * For the special case of 2 hex digits after a 1938 * '%' in an absolute path, calculate the value. 1939 * percent == 1 -> indicates "get first hex digit" 1940 * percent == 2 -> indicates "get second hex digit" 1941 */ 1942 if (percent > 0) { 1943 digit = nfsrv_hexdigit(*fromcp, &error); 1944 if (error) { 1945 nd->nd_repstat = EACCES; 1946 error = 0; 1947 goto nfsmout; 1948 } 1949 if (percent == 1) { 1950 val = (digit << 4); 1951 percent = 2; 1952 } else { 1953 val += digit; 1954 percent = 0; 1955 *tocp++ = val; 1956 hash += ((u_char)val); 1957 outlen++; 1958 } 1959 } else { 1960 if (*fromcp == '%' && pubtype == 2) { 1961 /* 1962 * Must be followed by 2 hex digits 1963 */ 1964 if ((len - i) < 3) { 1965 nd->nd_repstat = EACCES; 1966 error = 0; 1967 goto nfsmout; 1968 } 1969 percent = 1; 1970 } else { 1971 *tocp++ = *fromcp; 1972 hash += ((u_char)*fromcp); 1973 outlen++; 1974 } 1975 } 1976 } else { 1977 /* 1978 * Normal, non lookup on public, name. 1979 */ 1980 if (*fromcp == '/') { 1981 if (nd->nd_flag & ND_NFSV4) 1982 nd->nd_repstat = NFSERR_BADNAME; 1983 else 1984 nd->nd_repstat = EACCES; 1985 error = 0; 1986 goto nfsmout; 1987 } 1988 hash += ((u_char)*fromcp); 1989 *tocp++ = *fromcp; 1990 outlen++; 1991 } 1992 fromcp++; 1993 rem--; 1994 } 1995 nd->nd_md = md; 1996 nd->nd_dpos = fromcp; 1997 i = NFSM_RNDUP(len) - len; 1998 if (i > 0) { 1999 if (rem >= i) { 2000 nd->nd_dpos += i; 2001 } else { 2002 error = nfsm_advance(nd, i, rem); 2003 if (error) 2004 goto nfsmout; 2005 } 2006 } 2007 2008 /* 2009 * For v4, don't allow lookups of '.' or '..' and 2010 * also check for non-utf8 strings. 2011 */ 2012 if (nd->nd_flag & ND_NFSV4) { 2013 if ((outlen == 1 && bufp[0] == '.') || 2014 (outlen == 2 && bufp[0] == '.' && 2015 bufp[1] == '.')) { 2016 nd->nd_repstat = NFSERR_BADNAME; 2017 error = 0; 2018 goto nfsmout; 2019 } 2020 if (enable_checkutf8 == 1 && 2021 nfsrv_checkutf8((u_int8_t *)bufp, outlen)) { 2022 nd->nd_repstat = NFSERR_INVAL; 2023 error = 0; 2024 goto nfsmout; 2025 } 2026 } 2027 } 2028 *tocp = '\0'; 2029 *outlenp = (size_t)outlen; 2030 if (hashp != NULL) 2031 *hashp = hash; 2032 nfsmout: 2033 NFSEXITCODE2(error, nd); 2034 return (error); 2035 } 2036 2037 void 2038 nfsd_init(void) 2039 { 2040 int i; 2041 static int inited = 0; 2042 2043 if (inited) 2044 return; 2045 inited = 1; 2046 2047 /* 2048 * Initialize client queues. Don't free/reinitialize 2049 * them when nfsds are restarted. 2050 */ 2051 nfsclienthash = malloc(sizeof(struct nfsclienthashhead) * 2052 nfsrv_clienthashsize, M_NFSDCLIENT, M_WAITOK | M_ZERO); 2053 for (i = 0; i < nfsrv_clienthashsize; i++) 2054 LIST_INIT(&nfsclienthash[i]); 2055 nfslockhash = malloc(sizeof(struct nfslockhashhead) * 2056 nfsrv_lockhashsize, M_NFSDLOCKFILE, M_WAITOK | M_ZERO); 2057 for (i = 0; i < nfsrv_lockhashsize; i++) 2058 LIST_INIT(&nfslockhash[i]); 2059 nfssessionhash = malloc(sizeof(struct nfssessionhash) * 2060 nfsrv_sessionhashsize, M_NFSDSESSION, M_WAITOK | M_ZERO); 2061 for (i = 0; i < nfsrv_sessionhashsize; i++) { 2062 mtx_init(&nfssessionhash[i].mtx, "nfssm", NULL, MTX_DEF); 2063 LIST_INIT(&nfssessionhash[i].list); 2064 } 2065 LIST_INIT(&nfsrv_dontlisthead); 2066 TAILQ_INIT(&nfsrv_recalllisthead); 2067 2068 /* and the v2 pubfh should be all zeros */ 2069 NFSBZERO(nfs_v2pubfh, NFSX_V2FH); 2070 } 2071 2072 /* 2073 * Check the v4 root exports. 2074 * Return 0 if ok, 1 otherwise. 2075 */ 2076 int 2077 nfsd_checkrootexp(struct nfsrv_descript *nd) 2078 { 2079 2080 if ((nd->nd_flag & (ND_GSS | ND_EXAUTHSYS)) == ND_EXAUTHSYS) 2081 return (0); 2082 if ((nd->nd_flag & (ND_GSSINTEGRITY | ND_EXGSSINTEGRITY)) == 2083 (ND_GSSINTEGRITY | ND_EXGSSINTEGRITY)) 2084 return (0); 2085 if ((nd->nd_flag & (ND_GSSPRIVACY | ND_EXGSSPRIVACY)) == 2086 (ND_GSSPRIVACY | ND_EXGSSPRIVACY)) 2087 return (0); 2088 if ((nd->nd_flag & (ND_GSS | ND_GSSINTEGRITY | ND_GSSPRIVACY | 2089 ND_EXGSS)) == (ND_GSS | ND_EXGSS)) 2090 return (0); 2091 return (1); 2092 } 2093 2094 /* 2095 * Parse the first part of an NFSv4 compound to find out what the minor 2096 * version# is. 2097 */ 2098 void 2099 nfsd_getminorvers(struct nfsrv_descript *nd, u_char *tag, u_char **tagstrp, 2100 int *taglenp, u_int32_t *minversp) 2101 { 2102 uint32_t *tl; 2103 int error = 0, taglen = -1; 2104 u_char *tagstr = NULL; 2105 2106 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 2107 taglen = fxdr_unsigned(int, *tl); 2108 if (taglen < 0 || taglen > NFSV4_OPAQUELIMIT) { 2109 error = EBADRPC; 2110 goto nfsmout; 2111 } 2112 if (taglen <= NFSV4_SMALLSTR) 2113 tagstr = tag; 2114 else 2115 tagstr = malloc(taglen + 1, M_TEMP, M_WAITOK); 2116 error = nfsrv_mtostr(nd, tagstr, taglen); 2117 if (error != 0) 2118 goto nfsmout; 2119 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 2120 *minversp = fxdr_unsigned(u_int32_t, *tl); 2121 *tagstrp = tagstr; 2122 if (*minversp == NFSV41_MINORVERSION) 2123 nd->nd_flag |= ND_NFSV41; 2124 nfsmout: 2125 if (error != 0) { 2126 if (tagstr != NULL && taglen > NFSV4_SMALLSTR) 2127 free(tagstr, M_TEMP); 2128 taglen = -1; 2129 } 2130 *taglenp = taglen; 2131 } 2132
Cache object: 7a71238b2ff43be7ba9bb5d46faf6f53
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