1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * Rpc op calls, generally called from the vnode op calls or through the 39 * buffer cache, for NFS v2, 3 and 4. 40 * These do not normally make any changes to vnode arguments or use 41 * structures that might change between the VFS variants. The returned 42 * arguments are all at the end, after the NFSPROC_T *p one. 43 */ 44 45 #ifndef APPLEKEXT 46 #include <fs/nfs/nfsport.h> 47 48 /* 49 * Global variables 50 */ 51 extern int nfs_numnfscbd; 52 extern struct timeval nfsboottime; 53 extern u_int32_t newnfs_false, newnfs_true; 54 extern nfstype nfsv34_type[9]; 55 extern int nfsrv_useacl; 56 extern char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 57 NFSCLSTATEMUTEX; 58 int nfstest_outofseq = 0; 59 int nfscl_assumeposixlocks = 1; 60 int nfscl_enablecallb = 0; 61 short nfsv4_cbport = NFSV4_CBPORT; 62 int nfstest_openallsetattr = 0; 63 #endif /* !APPLEKEXT */ 64 65 #define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1)) 66 67 static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *, 68 struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *); 69 static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *, 70 nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *); 71 static int nfsrpc_writerpc(vnode_t , struct uio *, int *, u_char *, 72 struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, 73 void *); 74 static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *, 75 nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *, 76 struct nfsvattr *, struct nfsfh **, int *, int *, void *); 77 static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *, 78 nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *, 79 NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, 80 int *, void *, int *); 81 static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *, 82 struct nfscllockowner *, u_int64_t, u_int64_t, 83 u_int32_t, struct ucred *, NFSPROC_T *, int); 84 static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, 85 struct acl *, nfsv4stateid_t *, void *); 86 87 /* 88 * nfs null call from vfs. 89 */ 90 APPLESTATIC int 91 nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p) 92 { 93 int error; 94 struct nfsrv_descript nfsd, *nd = &nfsd; 95 96 NFSCL_REQSTART(nd, NFSPROC_NULL, vp); 97 error = nfscl_request(nd, vp, p, cred, NULL); 98 if (nd->nd_repstat && !error) 99 error = nd->nd_repstat; 100 mbuf_freem(nd->nd_mrep); 101 return (error); 102 } 103 104 /* 105 * nfs access rpc op. 106 * For nfs version 3 and 4, use the access rpc to check accessibility. If file 107 * modes are changed on the server, accesses might still fail later. 108 */ 109 APPLESTATIC int 110 nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred, 111 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp) 112 { 113 int error; 114 u_int32_t mode, rmode; 115 116 if (acmode & VREAD) 117 mode = NFSACCESS_READ; 118 else 119 mode = 0; 120 if (vnode_vtype(vp) == VDIR) { 121 if (acmode & VWRITE) 122 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND | 123 NFSACCESS_DELETE); 124 if (acmode & VEXEC) 125 mode |= NFSACCESS_LOOKUP; 126 } else { 127 if (acmode & VWRITE) 128 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND); 129 if (acmode & VEXEC) 130 mode |= NFSACCESS_EXECUTE; 131 } 132 133 /* 134 * Now, just call nfsrpc_accessrpc() to do the actual RPC. 135 */ 136 error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode, 137 NULL); 138 139 /* 140 * The NFS V3 spec does not clarify whether or not 141 * the returned access bits can be a superset of 142 * the ones requested, so... 143 */ 144 if (!error && (rmode & mode) != mode) 145 error = EACCES; 146 return (error); 147 } 148 149 /* 150 * The actual rpc, separated out for Darwin. 151 */ 152 APPLESTATIC int 153 nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred, 154 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep, 155 void *stuff) 156 { 157 u_int32_t *tl; 158 u_int32_t supported, rmode; 159 int error; 160 struct nfsrv_descript nfsd, *nd = &nfsd; 161 nfsattrbit_t attrbits; 162 163 *attrflagp = 0; 164 supported = mode; 165 NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp); 166 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 167 *tl = txdr_unsigned(mode); 168 if (nd->nd_flag & ND_NFSV4) { 169 /* 170 * And do a Getattr op. 171 */ 172 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 173 *tl = txdr_unsigned(NFSV4OP_GETATTR); 174 NFSGETATTR_ATTRBIT(&attrbits); 175 (void) nfsrv_putattrbit(nd, &attrbits); 176 } 177 error = nfscl_request(nd, vp, p, cred, stuff); 178 if (error) 179 return (error); 180 if (nd->nd_flag & ND_NFSV3) { 181 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 182 if (error) 183 goto nfsmout; 184 } 185 if (!nd->nd_repstat) { 186 if (nd->nd_flag & ND_NFSV4) { 187 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 188 supported = fxdr_unsigned(u_int32_t, *tl++); 189 } else { 190 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 191 } 192 rmode = fxdr_unsigned(u_int32_t, *tl); 193 if (nd->nd_flag & ND_NFSV4) 194 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 195 196 /* 197 * It's not obvious what should be done about 198 * unsupported access modes. For now, be paranoid 199 * and clear the unsupported ones. 200 */ 201 rmode &= supported; 202 *rmodep = rmode; 203 } else 204 error = nd->nd_repstat; 205 nfsmout: 206 mbuf_freem(nd->nd_mrep); 207 return (error); 208 } 209 210 /* 211 * nfs open rpc 212 */ 213 APPLESTATIC int 214 nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p) 215 { 216 struct nfsclopen *op; 217 struct nfscldeleg *dp; 218 struct nfsfh *nfhp; 219 struct nfsnode *np = VTONFS(vp); 220 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 221 u_int32_t mode, clidrev; 222 int ret, newone, error, expireret = 0, retrycnt; 223 224 /* 225 * For NFSv4, Open Ops are only done on Regular Files. 226 */ 227 if (vnode_vtype(vp) != VREG) 228 return (0); 229 mode = 0; 230 if (amode & FREAD) 231 mode |= NFSV4OPEN_ACCESSREAD; 232 if (amode & FWRITE) 233 mode |= NFSV4OPEN_ACCESSWRITE; 234 nfhp = np->n_fhp; 235 236 retrycnt = 0; 237 #ifdef notdef 238 { char name[100]; int namel; 239 namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; 240 bcopy(NFS4NODENAME(np->n_v4), name, namel); 241 name[namel] = '\0'; 242 printf("rpcopen p=0x%x name=%s",p->p_pid,name); 243 if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); 244 else printf(" fhl=0\n"); 245 } 246 #endif 247 do { 248 dp = NULL; 249 error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1, 250 cred, p, NULL, &op, &newone, &ret, 1); 251 if (error) { 252 return (error); 253 } 254 if (nmp->nm_clp != NULL) 255 clidrev = nmp->nm_clp->nfsc_clientidrev; 256 else 257 clidrev = 0; 258 if (ret == NFSCLOPEN_DOOPEN) { 259 if (np->n_v4 != NULL) { 260 error = nfsrpc_openrpc(nmp, vp, np->n_v4->n4_data, 261 np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, 262 np->n_fhp->nfh_len, mode, op, 263 NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, &dp, 264 0, 0x0, cred, p, 0, 0); 265 if (dp != NULL) { 266 #ifdef APPLE 267 OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag); 268 #else 269 NFSLOCKNODE(np); 270 np->n_flag &= ~NDELEGMOD; 271 NFSUNLOCKNODE(np); 272 #endif 273 (void) nfscl_deleg(nmp->nm_mountp, 274 op->nfso_own->nfsow_clp, 275 nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); 276 } 277 } else { 278 error = EIO; 279 } 280 newnfs_copyincred(cred, &op->nfso_cred); 281 } else if (ret == NFSCLOPEN_SETCRED) 282 /* 283 * This is a new local open on a delegation. It needs 284 * to have credentials so that an open can be done 285 * against the server during recovery. 286 */ 287 newnfs_copyincred(cred, &op->nfso_cred); 288 289 /* 290 * nfso_opencnt is the count of how many VOP_OPEN()s have 291 * been done on this Open successfully and a VOP_CLOSE() 292 * is expected for each of these. 293 * If error is non-zero, don't increment it, since the Open 294 * hasn't succeeded yet. 295 */ 296 if (!error) 297 op->nfso_opencnt++; 298 nfscl_openrelease(op, error, newone); 299 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 300 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 301 (void) nfs_catnap(PZERO, error, "nfs_open"); 302 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 303 && clidrev != 0) { 304 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 305 retrycnt++; 306 } 307 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 308 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 309 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 310 expireret == 0 && clidrev != 0 && retrycnt < 4)); 311 if (error && retrycnt >= 4) 312 error = EIO; 313 return (error); 314 } 315 316 /* 317 * the actual open rpc 318 */ 319 APPLESTATIC int 320 nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, 321 u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, 322 u_int8_t *name, int namelen, struct nfscldeleg **dpp, 323 int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, 324 int syscred, int recursed) 325 { 326 u_int32_t *tl; 327 struct nfsrv_descript nfsd, *nd = &nfsd; 328 struct nfscldeleg *dp, *ndp = NULL; 329 struct nfsvattr nfsva; 330 u_int32_t rflags, deleg; 331 nfsattrbit_t attrbits; 332 int error, ret, acesize, limitby; 333 334 dp = *dpp; 335 *dpp = NULL; 336 nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL); 337 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 338 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 339 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 340 *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 341 *tl++ = op->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 342 *tl = op->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 343 (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); 344 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 345 *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); 346 if (reclaim) { 347 *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); 348 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 349 *tl = txdr_unsigned(delegtype); 350 } else { 351 if (dp != NULL) { 352 *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); 353 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 354 *tl++ = dp->nfsdl_stateid.seqid; 355 *tl++ = dp->nfsdl_stateid.other[0]; 356 *tl++ = dp->nfsdl_stateid.other[1]; 357 *tl = dp->nfsdl_stateid.other[2]; 358 } else { 359 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 360 } 361 (void) nfsm_strtom(nd, name, namelen); 362 } 363 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 364 *tl = txdr_unsigned(NFSV4OP_GETATTR); 365 NFSZERO_ATTRBIT(&attrbits); 366 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 367 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); 368 (void) nfsrv_putattrbit(nd, &attrbits); 369 if (syscred) 370 nd->nd_flag |= ND_USEGSSNAME; 371 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 372 NFS_PROG, NFS_VER4, NULL, 1, NULL); 373 if (error) 374 return (error); 375 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 376 if (!nd->nd_repstat) { 377 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 378 6 * NFSX_UNSIGNED); 379 op->nfso_stateid.seqid = *tl++; 380 op->nfso_stateid.other[0] = *tl++; 381 op->nfso_stateid.other[1] = *tl++; 382 op->nfso_stateid.other[2] = *tl; 383 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 384 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 385 if (error) 386 goto nfsmout; 387 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 388 deleg = fxdr_unsigned(u_int32_t, *tl); 389 if (deleg == NFSV4OPEN_DELEGATEREAD || 390 deleg == NFSV4OPEN_DELEGATEWRITE) { 391 if (!(op->nfso_own->nfsow_clp->nfsc_flags & 392 NFSCLFLAGS_FIRSTDELEG)) 393 op->nfso_own->nfsow_clp->nfsc_flags |= 394 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 395 MALLOC(ndp, struct nfscldeleg *, 396 sizeof (struct nfscldeleg) + newfhlen, 397 M_NFSCLDELEG, M_WAITOK); 398 LIST_INIT(&ndp->nfsdl_owner); 399 LIST_INIT(&ndp->nfsdl_lock); 400 ndp->nfsdl_clp = op->nfso_own->nfsow_clp; 401 ndp->nfsdl_fhlen = newfhlen; 402 NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); 403 newnfs_copyincred(cred, &ndp->nfsdl_cred); 404 nfscl_lockinit(&ndp->nfsdl_rwlock); 405 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 406 NFSX_UNSIGNED); 407 ndp->nfsdl_stateid.seqid = *tl++; 408 ndp->nfsdl_stateid.other[0] = *tl++; 409 ndp->nfsdl_stateid.other[1] = *tl++; 410 ndp->nfsdl_stateid.other[2] = *tl++; 411 ret = fxdr_unsigned(int, *tl); 412 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 413 ndp->nfsdl_flags = NFSCLDL_WRITE; 414 /* 415 * Indicates how much the file can grow. 416 */ 417 NFSM_DISSECT(tl, u_int32_t *, 418 3 * NFSX_UNSIGNED); 419 limitby = fxdr_unsigned(int, *tl++); 420 switch (limitby) { 421 case NFSV4OPEN_LIMITSIZE: 422 ndp->nfsdl_sizelimit = fxdr_hyper(tl); 423 break; 424 case NFSV4OPEN_LIMITBLOCKS: 425 ndp->nfsdl_sizelimit = 426 fxdr_unsigned(u_int64_t, *tl++); 427 ndp->nfsdl_sizelimit *= 428 fxdr_unsigned(u_int64_t, *tl); 429 break; 430 default: 431 error = NFSERR_BADXDR; 432 goto nfsmout; 433 }; 434 } else { 435 ndp->nfsdl_flags = NFSCLDL_READ; 436 } 437 if (ret) 438 ndp->nfsdl_flags |= NFSCLDL_RECALL; 439 error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, 440 &acesize, p); 441 if (error) 442 goto nfsmout; 443 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 444 error = NFSERR_BADXDR; 445 goto nfsmout; 446 } 447 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 448 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 449 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 450 NULL, NULL, NULL, p, cred); 451 if (error) 452 goto nfsmout; 453 if (ndp != NULL) { 454 ndp->nfsdl_change = nfsva.na_filerev; 455 ndp->nfsdl_modtime = nfsva.na_mtime; 456 ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; 457 } 458 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { 459 do { 460 ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, 461 cred, p); 462 if (ret == NFSERR_DELAY) 463 (void) nfs_catnap(PZERO, ret, "nfs_open"); 464 } while (ret == NFSERR_DELAY); 465 error = ret; 466 } 467 if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || 468 nfscl_assumeposixlocks) 469 op->nfso_posixlock = 1; 470 else 471 op->nfso_posixlock = 0; 472 473 /* 474 * If the server is handing out delegations, but we didn't 475 * get one because an OpenConfirm was required, try the 476 * Open again, to get a delegation. This is a harmless no-op, 477 * from a server's point of view. 478 */ 479 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && 480 (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) 481 && !error && dp == NULL && ndp == NULL && !recursed) { 482 do { 483 ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, 484 newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, 485 cred, p, syscred, 1); 486 if (ret == NFSERR_DELAY) 487 (void) nfs_catnap(PZERO, ret, "nfs_open2"); 488 } while (ret == NFSERR_DELAY); 489 if (ret) { 490 if (ndp != NULL) 491 FREE((caddr_t)ndp, M_NFSCLDELEG); 492 if (ret == NFSERR_STALECLIENTID || 493 ret == NFSERR_STALEDONTRECOVER) 494 error = ret; 495 } 496 } 497 } 498 if (nd->nd_repstat != 0 && error == 0) 499 error = nd->nd_repstat; 500 if (error == NFSERR_STALECLIENTID) 501 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 502 nfsmout: 503 if (!error) 504 *dpp = ndp; 505 else if (ndp != NULL) 506 FREE((caddr_t)ndp, M_NFSCLDELEG); 507 mbuf_freem(nd->nd_mrep); 508 return (error); 509 } 510 511 /* 512 * open downgrade rpc 513 */ 514 APPLESTATIC int 515 nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, 516 struct ucred *cred, NFSPROC_T *p) 517 { 518 u_int32_t *tl; 519 struct nfsrv_descript nfsd, *nd = &nfsd; 520 int error; 521 522 NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); 523 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 524 *tl++ = op->nfso_stateid.seqid; 525 *tl++ = op->nfso_stateid.other[0]; 526 *tl++ = op->nfso_stateid.other[1]; 527 *tl++ = op->nfso_stateid.other[2]; 528 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 529 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 530 *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 531 error = nfscl_request(nd, vp, p, cred, NULL); 532 if (error) 533 return (error); 534 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 535 if (!nd->nd_repstat) { 536 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 537 op->nfso_stateid.seqid = *tl++; 538 op->nfso_stateid.other[0] = *tl++; 539 op->nfso_stateid.other[1] = *tl++; 540 op->nfso_stateid.other[2] = *tl; 541 } 542 if (nd->nd_repstat && error == 0) 543 error = nd->nd_repstat; 544 if (error == NFSERR_STALESTATEID) 545 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 546 nfsmout: 547 mbuf_freem(nd->nd_mrep); 548 return (error); 549 } 550 551 /* 552 * V4 Close operation. 553 */ 554 APPLESTATIC int 555 nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) 556 { 557 struct nfsclclient *clp; 558 int error; 559 560 if (vnode_vtype(vp) != VREG) 561 return (0); 562 if (doclose) 563 error = nfscl_doclose(vp, &clp, p); 564 else 565 error = nfscl_getclose(vp, &clp); 566 if (error) 567 return (error); 568 569 nfscl_clientrelease(clp); 570 return (0); 571 } 572 573 /* 574 * Close the open. 575 */ 576 APPLESTATIC void 577 nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p) 578 { 579 struct nfsrv_descript nfsd, *nd = &nfsd; 580 struct nfscllockowner *lp; 581 struct nfscllock *lop, *nlop; 582 struct ucred *tcred; 583 u_int64_t off = 0, len = 0; 584 u_int32_t type = NFSV4LOCKT_READ; 585 int error, do_unlock, trycnt; 586 587 tcred = newnfs_getcred(); 588 newnfs_copycred(&op->nfso_cred, tcred); 589 /* 590 * (Theoretically this could be done in the same 591 * compound as the close, but having multiple 592 * sequenced Ops in the same compound might be 593 * too scary for some servers.) 594 */ 595 if (op->nfso_posixlock) { 596 off = 0; 597 len = NFS64BITSSET; 598 type = NFSV4LOCKT_READ; 599 } 600 601 /* 602 * Since this function is only called from VOP_INACTIVE(), no 603 * other thread will be manipulating this Open. As such, the 604 * lock lists are not being changed by other threads, so it should 605 * be safe to do this without locking. 606 */ 607 LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { 608 do_unlock = 1; 609 LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) { 610 if (op->nfso_posixlock == 0) { 611 off = lop->nfslo_first; 612 len = lop->nfslo_end - lop->nfslo_first; 613 if (lop->nfslo_type == F_WRLCK) 614 type = NFSV4LOCKT_WRITE; 615 else 616 type = NFSV4LOCKT_READ; 617 } 618 if (do_unlock) { 619 trycnt = 0; 620 do { 621 error = nfsrpc_locku(nd, nmp, lp, off, 622 len, type, tcred, p, 0); 623 if ((nd->nd_repstat == NFSERR_GRACE || 624 nd->nd_repstat == NFSERR_DELAY) && 625 error == 0) 626 (void) nfs_catnap(PZERO, 627 (int)nd->nd_repstat, 628 "nfs_close"); 629 } while ((nd->nd_repstat == NFSERR_GRACE || 630 nd->nd_repstat == NFSERR_DELAY) && 631 error == 0 && trycnt++ < 5); 632 if (op->nfso_posixlock) 633 do_unlock = 0; 634 } 635 nfscl_freelock(lop, 0); 636 } 637 } 638 639 /* 640 * There could be other Opens for different files on the same 641 * OpenOwner, so locking is required. 642 */ 643 NFSLOCKCLSTATE(); 644 nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); 645 NFSUNLOCKCLSTATE(); 646 do { 647 error = nfscl_tryclose(op, tcred, nmp, p); 648 if (error == NFSERR_GRACE) 649 (void) nfs_catnap(PZERO, error, "nfs_close"); 650 } while (error == NFSERR_GRACE); 651 NFSLOCKCLSTATE(); 652 nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); 653 654 /* 655 * Move the lockowner to nfsc_defunctlockowner, 656 * so the Renew thread will do the ReleaseLockOwner 657 * Op on it later. There might still be other 658 * opens using the same lockowner name. 659 */ 660 lp = LIST_FIRST(&op->nfso_lock); 661 if (lp != NULL) { 662 while (LIST_NEXT(lp, nfsl_list) != NULL) 663 lp = LIST_NEXT(lp, nfsl_list); 664 LIST_PREPEND(&nmp->nm_clp->nfsc_defunctlockowner, 665 &op->nfso_lock, lp, nfsl_list); 666 LIST_INIT(&op->nfso_lock); 667 } 668 nfscl_freeopen(op, 0); 669 NFSUNLOCKCLSTATE(); 670 NFSFREECRED(tcred); 671 } 672 673 /* 674 * The actual Close RPC. 675 */ 676 APPLESTATIC int 677 nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, 678 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, 679 int syscred) 680 { 681 u_int32_t *tl; 682 int error; 683 684 nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, 685 op->nfso_fhlen, NULL); 686 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 687 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 688 *tl++ = op->nfso_stateid.seqid; 689 *tl++ = op->nfso_stateid.other[0]; 690 *tl++ = op->nfso_stateid.other[1]; 691 *tl = op->nfso_stateid.other[2]; 692 if (syscred) 693 nd->nd_flag |= ND_USEGSSNAME; 694 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 695 NFS_PROG, NFS_VER4, NULL, 1, NULL); 696 if (error) 697 return (error); 698 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 699 if (nd->nd_repstat == 0) 700 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 701 error = nd->nd_repstat; 702 if (error == NFSERR_STALESTATEID) 703 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 704 nfsmout: 705 mbuf_freem(nd->nd_mrep); 706 return (error); 707 } 708 709 /* 710 * V4 Open Confirm RPC. 711 */ 712 APPLESTATIC int 713 nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, 714 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) 715 { 716 u_int32_t *tl; 717 struct nfsrv_descript nfsd, *nd = &nfsd; 718 int error; 719 720 nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, VFSTONFS(vnode_mount(vp)), 721 nfhp, fhlen, NULL); 722 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 723 *tl++ = op->nfso_stateid.seqid; 724 *tl++ = op->nfso_stateid.other[0]; 725 *tl++ = op->nfso_stateid.other[1]; 726 *tl++ = op->nfso_stateid.other[2]; 727 *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); 728 error = nfscl_request(nd, vp, p, cred, NULL); 729 if (error) 730 return (error); 731 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 732 if (!nd->nd_repstat) { 733 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 734 op->nfso_stateid.seqid = *tl++; 735 op->nfso_stateid.other[0] = *tl++; 736 op->nfso_stateid.other[1] = *tl++; 737 op->nfso_stateid.other[2] = *tl; 738 } 739 error = nd->nd_repstat; 740 if (error == NFSERR_STALESTATEID) 741 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 742 nfsmout: 743 mbuf_freem(nd->nd_mrep); 744 return (error); 745 } 746 747 /* 748 * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() 749 * when a mount has just occurred and when the server replies NFSERR_EXPIRED. 750 */ 751 APPLESTATIC int 752 nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, 753 struct ucred *cred, NFSPROC_T *p) 754 { 755 u_int32_t *tl; 756 struct nfsrv_descript nfsd; 757 struct nfsrv_descript *nd = &nfsd; 758 nfsattrbit_t attrbits; 759 u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; 760 u_short port; 761 int error, isinet6 = 0, callblen; 762 nfsquad_t confirm; 763 u_int32_t lease; 764 static u_int32_t rev = 0; 765 766 if (nfsboottime.tv_sec == 0) 767 NFSSETBOOTTIME(nfsboottime); 768 nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL); 769 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 770 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 771 *tl = txdr_unsigned(rev++); 772 (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); 773 774 /* 775 * set up the callback address 776 */ 777 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 778 *tl = txdr_unsigned(NFS_CALLBCKPROG); 779 callblen = strlen(nfsv4_callbackaddr); 780 if (callblen == 0) 781 cp = nfscl_getmyip(nmp, &isinet6); 782 if (nfscl_enablecallb && nfs_numnfscbd > 0 && 783 (callblen > 0 || cp != NULL)) { 784 port = htons(nfsv4_cbport); 785 cp2 = (u_int8_t *)&port; 786 #ifdef INET6 787 if ((callblen > 0 && 788 strchr(nfsv4_callbackaddr, ':')) || isinet6) { 789 char ip6buf[INET6_ADDRSTRLEN], *ip6add; 790 791 (void) nfsm_strtom(nd, "tcp6", 4); 792 if (callblen == 0) { 793 ip6_sprintf(ip6buf, (struct in6_addr *)cp); 794 ip6add = ip6buf; 795 } else { 796 ip6add = nfsv4_callbackaddr; 797 } 798 snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", 799 ip6add, cp2[0], cp2[1]); 800 } else 801 #endif 802 { 803 (void) nfsm_strtom(nd, "tcp", 3); 804 if (callblen == 0) 805 snprintf(addr, INET6_ADDRSTRLEN + 9, 806 "%d.%d.%d.%d.%d.%d", cp[0], cp[1], 807 cp[2], cp[3], cp2[0], cp2[1]); 808 else 809 snprintf(addr, INET6_ADDRSTRLEN + 9, 810 "%s.%d.%d", nfsv4_callbackaddr, 811 cp2[0], cp2[1]); 812 } 813 (void) nfsm_strtom(nd, addr, strlen(addr)); 814 } else { 815 (void) nfsm_strtom(nd, "tcp", 3); 816 (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); 817 } 818 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 819 *tl = txdr_unsigned(clp->nfsc_cbident); 820 nd->nd_flag |= ND_USEGSSNAME; 821 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 822 NFS_PROG, NFS_VER4, NULL, 1, NULL); 823 if (error) 824 return (error); 825 if (nd->nd_repstat == 0) { 826 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 827 clp->nfsc_clientid.lval[0] = *tl++; 828 clp->nfsc_clientid.lval[1] = *tl++; 829 confirm.lval[0] = *tl++; 830 confirm.lval[1] = *tl; 831 mbuf_freem(nd->nd_mrep); 832 nd->nd_mrep = NULL; 833 834 /* 835 * and confirm it. 836 */ 837 nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL); 838 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 839 *tl++ = clp->nfsc_clientid.lval[0]; 840 *tl++ = clp->nfsc_clientid.lval[1]; 841 *tl++ = confirm.lval[0]; 842 *tl = confirm.lval[1]; 843 nd->nd_flag |= ND_USEGSSNAME; 844 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 845 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 846 if (error) 847 return (error); 848 mbuf_freem(nd->nd_mrep); 849 nd->nd_mrep = NULL; 850 if (nd->nd_repstat == 0) { 851 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, 852 nmp->nm_fhsize, NULL); 853 NFSZERO_ATTRBIT(&attrbits); 854 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); 855 (void) nfsrv_putattrbit(nd, &attrbits); 856 nd->nd_flag |= ND_USEGSSNAME; 857 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 858 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 859 if (error) 860 return (error); 861 if (nd->nd_repstat == 0) { 862 error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, 863 NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); 864 if (error) 865 goto nfsmout; 866 clp->nfsc_renew = NFSCL_RENEW(lease); 867 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; 868 clp->nfsc_clientidrev++; 869 if (clp->nfsc_clientidrev == 0) 870 clp->nfsc_clientidrev++; 871 } 872 } 873 } 874 error = nd->nd_repstat; 875 nfsmout: 876 mbuf_freem(nd->nd_mrep); 877 return (error); 878 } 879 880 /* 881 * nfs getattr call. 882 */ 883 APPLESTATIC int 884 nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 885 struct nfsvattr *nap, void *stuff) 886 { 887 struct nfsrv_descript nfsd, *nd = &nfsd; 888 int error; 889 nfsattrbit_t attrbits; 890 891 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 892 if (nd->nd_flag & ND_NFSV4) { 893 NFSGETATTR_ATTRBIT(&attrbits); 894 (void) nfsrv_putattrbit(nd, &attrbits); 895 } 896 error = nfscl_request(nd, vp, p, cred, stuff); 897 if (error) 898 return (error); 899 if (!nd->nd_repstat) 900 error = nfsm_loadattr(nd, nap); 901 else 902 error = nd->nd_repstat; 903 mbuf_freem(nd->nd_mrep); 904 return (error); 905 } 906 907 /* 908 * nfs getattr call with non-vnode arguemnts. 909 */ 910 APPLESTATIC int 911 nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, 912 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp) 913 { 914 struct nfsrv_descript nfsd, *nd = &nfsd; 915 int error, vers = NFS_VER2; 916 nfsattrbit_t attrbits; 917 918 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL); 919 if (nd->nd_flag & ND_NFSV4) { 920 vers = NFS_VER4; 921 NFSGETATTR_ATTRBIT(&attrbits); 922 (void) nfsrv_putattrbit(nd, &attrbits); 923 } else if (nd->nd_flag & ND_NFSV3) { 924 vers = NFS_VER3; 925 } 926 if (syscred) 927 nd->nd_flag |= ND_USEGSSNAME; 928 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 929 NFS_PROG, vers, NULL, 1, xidp); 930 if (error) 931 return (error); 932 if (!nd->nd_repstat) 933 error = nfsm_loadattr(nd, nap); 934 else 935 error = nd->nd_repstat; 936 mbuf_freem(nd->nd_mrep); 937 return (error); 938 } 939 940 /* 941 * Do an nfs setattr operation. 942 */ 943 APPLESTATIC int 944 nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, 945 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, 946 void *stuff) 947 { 948 int error, expireret = 0, openerr, retrycnt; 949 u_int32_t clidrev = 0, mode; 950 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 951 struct nfsfh *nfhp; 952 nfsv4stateid_t stateid; 953 void *lckp; 954 955 if (nmp->nm_clp != NULL) 956 clidrev = nmp->nm_clp->nfsc_clientidrev; 957 if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) 958 mode = NFSV4OPEN_ACCESSWRITE; 959 else 960 mode = NFSV4OPEN_ACCESSREAD; 961 retrycnt = 0; 962 do { 963 lckp = NULL; 964 openerr = 1; 965 if (NFSHASNFSV4(nmp)) { 966 nfhp = VTONFS(vp)->n_fhp; 967 error = nfscl_getstateid(vp, nfhp->nfh_fh, 968 nfhp->nfh_len, mode, cred, p, &stateid, &lckp); 969 if (error && vnode_vtype(vp) == VREG && 970 (mode == NFSV4OPEN_ACCESSWRITE || 971 nfstest_openallsetattr)) { 972 /* 973 * No Open stateid, so try and open the file 974 * now. 975 */ 976 if (mode == NFSV4OPEN_ACCESSWRITE) 977 openerr = nfsrpc_open(vp, FWRITE, cred, 978 p); 979 else 980 openerr = nfsrpc_open(vp, FREAD, cred, 981 p); 982 if (!openerr) 983 (void) nfscl_getstateid(vp, 984 nfhp->nfh_fh, nfhp->nfh_len, 985 mode, cred, p, &stateid, &lckp); 986 } 987 } 988 if (vap != NULL) 989 error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, 990 rnap, attrflagp, stuff); 991 else 992 error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, 993 stuff); 994 if (error == NFSERR_STALESTATEID) 995 nfscl_initiate_recovery(nmp->nm_clp); 996 if (lckp != NULL) 997 nfscl_lockderef(lckp); 998 if (!openerr) 999 (void) nfsrpc_close(vp, 0, p); 1000 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1001 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1002 error == NFSERR_OLDSTATEID) { 1003 (void) nfs_catnap(PZERO, error, "nfs_setattr"); 1004 } else if ((error == NFSERR_EXPIRED || 1005 error == NFSERR_BADSTATEID) && clidrev != 0) { 1006 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1007 } 1008 retrycnt++; 1009 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1010 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1011 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1012 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1013 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1014 if (error && retrycnt >= 4) 1015 error = EIO; 1016 return (error); 1017 } 1018 1019 static int 1020 nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap, 1021 nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, 1022 struct nfsvattr *rnap, int *attrflagp, void *stuff) 1023 { 1024 u_int32_t *tl; 1025 struct nfsrv_descript nfsd, *nd = &nfsd; 1026 int error; 1027 nfsattrbit_t attrbits; 1028 1029 *attrflagp = 0; 1030 NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp); 1031 if (nd->nd_flag & ND_NFSV4) 1032 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1033 vap->va_type = vnode_vtype(vp); 1034 nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0); 1035 if (nd->nd_flag & ND_NFSV3) { 1036 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1037 *tl = newnfs_false; 1038 } else if (nd->nd_flag & ND_NFSV4) { 1039 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1040 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1041 NFSGETATTR_ATTRBIT(&attrbits); 1042 (void) nfsrv_putattrbit(nd, &attrbits); 1043 } 1044 error = nfscl_request(nd, vp, p, cred, stuff); 1045 if (error) 1046 return (error); 1047 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1048 error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff); 1049 if ((nd->nd_flag & ND_NFSV4) && !error) 1050 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1051 if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error) 1052 error = nfscl_postop_attr(nd, rnap, attrflagp, stuff); 1053 mbuf_freem(nd->nd_mrep); 1054 if (nd->nd_repstat && !error) 1055 error = nd->nd_repstat; 1056 return (error); 1057 } 1058 1059 /* 1060 * nfs lookup rpc 1061 */ 1062 APPLESTATIC int 1063 nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred, 1064 NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap, 1065 struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff) 1066 { 1067 u_int32_t *tl; 1068 struct nfsrv_descript nfsd, *nd = &nfsd; 1069 struct nfsmount *nmp; 1070 struct nfsnode *np; 1071 struct nfsfh *nfhp; 1072 nfsattrbit_t attrbits; 1073 int error = 0, lookupp = 0; 1074 1075 *attrflagp = 0; 1076 *dattrflagp = 0; 1077 if (vnode_vtype(dvp) != VDIR) 1078 return (ENOTDIR); 1079 nmp = VFSTONFS(vnode_mount(dvp)); 1080 if (len > NFS_MAXNAMLEN) 1081 return (ENAMETOOLONG); 1082 if (NFSHASNFSV4(nmp) && len == 1 && 1083 name[0] == '.') { 1084 /* 1085 * Just return the current dir's fh. 1086 */ 1087 np = VTONFS(dvp); 1088 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1089 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1090 nfhp->nfh_len = np->n_fhp->nfh_len; 1091 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1092 *nfhpp = nfhp; 1093 return (0); 1094 } 1095 if (NFSHASNFSV4(nmp) && len == 2 && 1096 name[0] == '.' && name[1] == '.') { 1097 lookupp = 1; 1098 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp); 1099 } else { 1100 NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp); 1101 (void) nfsm_strtom(nd, name, len); 1102 } 1103 if (nd->nd_flag & ND_NFSV4) { 1104 NFSGETATTR_ATTRBIT(&attrbits); 1105 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1106 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1107 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1108 (void) nfsrv_putattrbit(nd, &attrbits); 1109 } 1110 error = nfscl_request(nd, dvp, p, cred, stuff); 1111 if (error) 1112 return (error); 1113 if (nd->nd_repstat) { 1114 /* 1115 * When an NFSv4 Lookupp returns ENOENT, it means that 1116 * the lookup is at the root of an fs, so return this dir. 1117 */ 1118 if (nd->nd_repstat == NFSERR_NOENT && lookupp) { 1119 np = VTONFS(dvp); 1120 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1121 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1122 nfhp->nfh_len = np->n_fhp->nfh_len; 1123 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1124 *nfhpp = nfhp; 1125 mbuf_freem(nd->nd_mrep); 1126 return (0); 1127 } 1128 if (nd->nd_flag & ND_NFSV3) 1129 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1130 goto nfsmout; 1131 } 1132 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 1133 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1134 if (*(tl + 1)) { 1135 nd->nd_flag |= ND_NOMOREDATA; 1136 goto nfsmout; 1137 } 1138 } 1139 error = nfsm_getfh(nd, nfhpp); 1140 if (error) 1141 goto nfsmout; 1142 1143 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1144 if ((nd->nd_flag & ND_NFSV3) && !error) 1145 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1146 nfsmout: 1147 mbuf_freem(nd->nd_mrep); 1148 if (!error && nd->nd_repstat) 1149 error = nd->nd_repstat; 1150 return (error); 1151 } 1152 1153 /* 1154 * Do a readlink rpc. 1155 */ 1156 APPLESTATIC int 1157 nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred, 1158 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1159 { 1160 u_int32_t *tl; 1161 struct nfsrv_descript nfsd, *nd = &nfsd; 1162 struct nfsnode *np = VTONFS(vp); 1163 nfsattrbit_t attrbits; 1164 int error, len, cangetattr = 1; 1165 1166 *attrflagp = 0; 1167 NFSCL_REQSTART(nd, NFSPROC_READLINK, vp); 1168 if (nd->nd_flag & ND_NFSV4) { 1169 /* 1170 * And do a Getattr op. 1171 */ 1172 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1173 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1174 NFSGETATTR_ATTRBIT(&attrbits); 1175 (void) nfsrv_putattrbit(nd, &attrbits); 1176 } 1177 error = nfscl_request(nd, vp, p, cred, stuff); 1178 if (error) 1179 return (error); 1180 if (nd->nd_flag & ND_NFSV3) 1181 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1182 if (!nd->nd_repstat && !error) { 1183 NFSM_STRSIZ(len, NFS_MAXPATHLEN); 1184 /* 1185 * This seems weird to me, but must have been added to 1186 * FreeBSD for some reason. The only thing I can think of 1187 * is that there was/is some server that replies with 1188 * more link data than it should? 1189 */ 1190 if (len == NFS_MAXPATHLEN) { 1191 NFSLOCKNODE(np); 1192 if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) { 1193 len = np->n_size; 1194 cangetattr = 0; 1195 } 1196 NFSUNLOCKNODE(np); 1197 } 1198 error = nfsm_mbufuio(nd, uiop, len); 1199 if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr) 1200 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1201 } 1202 if (nd->nd_repstat && !error) 1203 error = nd->nd_repstat; 1204 nfsmout: 1205 mbuf_freem(nd->nd_mrep); 1206 return (error); 1207 } 1208 1209 /* 1210 * Read operation. 1211 */ 1212 APPLESTATIC int 1213 nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred, 1214 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1215 { 1216 int error, expireret = 0, retrycnt; 1217 u_int32_t clidrev = 0; 1218 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1219 struct nfsnode *np = VTONFS(vp); 1220 struct ucred *newcred; 1221 struct nfsfh *nfhp = NULL; 1222 nfsv4stateid_t stateid; 1223 void *lckp; 1224 1225 if (nmp->nm_clp != NULL) 1226 clidrev = nmp->nm_clp->nfsc_clientidrev; 1227 newcred = cred; 1228 if (NFSHASNFSV4(nmp)) { 1229 nfhp = np->n_fhp; 1230 if (p == NULL) 1231 newcred = NFSNEWCRED(cred); 1232 } 1233 retrycnt = 0; 1234 do { 1235 lckp = NULL; 1236 if (NFSHASNFSV4(nmp)) 1237 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1238 NFSV4OPEN_ACCESSREAD, newcred, p, &stateid, &lckp); 1239 error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap, 1240 attrflagp, stuff); 1241 if (error == NFSERR_STALESTATEID) 1242 nfscl_initiate_recovery(nmp->nm_clp); 1243 if (lckp != NULL) 1244 nfscl_lockderef(lckp); 1245 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1246 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1247 error == NFSERR_OLDSTATEID) { 1248 (void) nfs_catnap(PZERO, error, "nfs_read"); 1249 } else if ((error == NFSERR_EXPIRED || 1250 error == NFSERR_BADSTATEID) && clidrev != 0) { 1251 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1252 } 1253 retrycnt++; 1254 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1255 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1256 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1257 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1258 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1259 if (error && retrycnt >= 4) 1260 error = EIO; 1261 if (NFSHASNFSV4(nmp) && p == NULL) 1262 NFSFREECRED(newcred); 1263 return (error); 1264 } 1265 1266 /* 1267 * The actual read RPC. 1268 */ 1269 static int 1270 nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred, 1271 nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap, 1272 int *attrflagp, void *stuff) 1273 { 1274 u_int32_t *tl; 1275 int error = 0, len, retlen, tsiz, eof = 0; 1276 struct nfsrv_descript nfsd; 1277 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1278 struct nfsrv_descript *nd = &nfsd; 1279 1280 *attrflagp = 0; 1281 tsiz = uio_uio_resid(uiop); 1282 if (uiop->uio_offset + tsiz > 0xffffffff && 1283 !NFSHASNFSV3OR4(nmp)) 1284 return (EFBIG); 1285 nd->nd_mrep = NULL; 1286 while (tsiz > 0) { 1287 *attrflagp = 0; 1288 len = (tsiz > nmp->nm_rsize) ? nmp->nm_rsize : tsiz; 1289 NFSCL_REQSTART(nd, NFSPROC_READ, vp); 1290 if (nd->nd_flag & ND_NFSV4) 1291 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1292 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1293 if (nd->nd_flag & ND_NFSV2) { 1294 *tl++ = txdr_unsigned(uiop->uio_offset); 1295 *tl++ = txdr_unsigned(len); 1296 *tl = 0; 1297 } else { 1298 txdr_hyper(uiop->uio_offset, tl); 1299 *(tl + 2) = txdr_unsigned(len); 1300 } 1301 /* 1302 * Since I can't do a Getattr for NFSv4 for Write, there 1303 * doesn't seem any point in doing one here, either. 1304 * (See the comment in nfsrpc_writerpc() for more info.) 1305 */ 1306 error = nfscl_request(nd, vp, p, cred, stuff); 1307 if (error) 1308 return (error); 1309 if (nd->nd_flag & ND_NFSV3) { 1310 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1311 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 1312 error = nfsm_loadattr(nd, nap); 1313 if (!error) 1314 *attrflagp = 1; 1315 } 1316 if (nd->nd_repstat || error) { 1317 if (!error) 1318 error = nd->nd_repstat; 1319 goto nfsmout; 1320 } 1321 if (nd->nd_flag & ND_NFSV3) { 1322 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1323 eof = fxdr_unsigned(int, *(tl + 1)); 1324 } else if (nd->nd_flag & ND_NFSV4) { 1325 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1326 eof = fxdr_unsigned(int, *tl); 1327 } 1328 NFSM_STRSIZ(retlen, nmp->nm_rsize); 1329 error = nfsm_mbufuio(nd, uiop, retlen); 1330 if (error) 1331 goto nfsmout; 1332 mbuf_freem(nd->nd_mrep); 1333 nd->nd_mrep = NULL; 1334 tsiz -= retlen; 1335 if (!(nd->nd_flag & ND_NFSV2)) { 1336 if (eof || retlen == 0) 1337 tsiz = 0; 1338 } else if (retlen < len) 1339 tsiz = 0; 1340 } 1341 return (0); 1342 nfsmout: 1343 if (nd->nd_mrep != NULL) 1344 mbuf_freem(nd->nd_mrep); 1345 return (error); 1346 } 1347 1348 /* 1349 * nfs write operation 1350 * When called_from_strategy != 0, it should return EIO for an error that 1351 * indicates recovery is in progress, so that the buffer will be left 1352 * dirty and be written back to the server later. If it loops around, 1353 * the recovery thread could get stuck waiting for the buffer and recovery 1354 * will then deadlock. 1355 */ 1356 APPLESTATIC int 1357 nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, u_char *verfp, 1358 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 1359 void *stuff, int called_from_strategy) 1360 { 1361 int error, expireret = 0, retrycnt, nostateid; 1362 u_int32_t clidrev = 0; 1363 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1364 struct nfsnode *np = VTONFS(vp); 1365 struct ucred *newcred; 1366 struct nfsfh *nfhp = NULL; 1367 nfsv4stateid_t stateid; 1368 void *lckp; 1369 1370 if (nmp->nm_clp != NULL) 1371 clidrev = nmp->nm_clp->nfsc_clientidrev; 1372 newcred = cred; 1373 if (NFSHASNFSV4(nmp)) { 1374 if (p == NULL) 1375 newcred = NFSNEWCRED(cred); 1376 nfhp = np->n_fhp; 1377 } 1378 retrycnt = 0; 1379 do { 1380 lckp = NULL; 1381 nostateid = 0; 1382 if (NFSHASNFSV4(nmp)) { 1383 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1384 NFSV4OPEN_ACCESSWRITE, newcred, p, &stateid, &lckp); 1385 if (stateid.other[0] == 0 && stateid.other[1] == 0 && 1386 stateid.other[2] == 0) { 1387 nostateid = 1; 1388 printf("stateid0 in write\n"); 1389 } 1390 } 1391 1392 /* 1393 * If there is no stateid for NFSv4, it means this is an 1394 * extraneous write after close. Basically a poorly 1395 * implemented buffer cache. Just don't do the write. 1396 */ 1397 if (nostateid) 1398 error = 0; 1399 else 1400 error = nfsrpc_writerpc(vp, uiop, iomode, verfp, 1401 newcred, &stateid, p, nap, attrflagp, stuff); 1402 if (error == NFSERR_STALESTATEID) 1403 nfscl_initiate_recovery(nmp->nm_clp); 1404 if (lckp != NULL) 1405 nfscl_lockderef(lckp); 1406 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1407 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1408 error == NFSERR_OLDSTATEID) { 1409 (void) nfs_catnap(PZERO, error, "nfs_write"); 1410 } else if ((error == NFSERR_EXPIRED || 1411 error == NFSERR_BADSTATEID) && clidrev != 0) { 1412 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1413 } 1414 retrycnt++; 1415 } while (error == NFSERR_GRACE || error == NFSERR_DELAY || 1416 ((error == NFSERR_STALESTATEID || 1417 error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) || 1418 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1419 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1420 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1421 if (error != 0 && (retrycnt >= 4 || 1422 ((error == NFSERR_STALESTATEID || 1423 error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0))) 1424 error = EIO; 1425 if (NFSHASNFSV4(nmp) && p == NULL) 1426 NFSFREECRED(newcred); 1427 return (error); 1428 } 1429 1430 /* 1431 * The actual write RPC. 1432 */ 1433 static int 1434 nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, 1435 u_char *verfp, struct ucred *cred, nfsv4stateid_t *stateidp, 1436 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1437 { 1438 u_int32_t *tl; 1439 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1440 struct nfsnode *np = VTONFS(vp); 1441 int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; 1442 int wccflag = 0, wsize; 1443 int32_t backup; 1444 struct nfsrv_descript nfsd; 1445 struct nfsrv_descript *nd = &nfsd; 1446 nfsattrbit_t attrbits; 1447 1448 #ifdef DIAGNOSTIC 1449 if (uiop->uio_iovcnt != 1) 1450 panic("nfs: writerpc iovcnt > 1"); 1451 #endif 1452 *attrflagp = 0; 1453 tsiz = uio_uio_resid(uiop); 1454 NFSLOCKMNT(nmp); 1455 if (uiop->uio_offset + tsiz > 0xffffffff && 1456 !NFSHASNFSV3OR4(nmp)) { 1457 NFSUNLOCKMNT(nmp); 1458 return (EFBIG); 1459 } 1460 wsize = nmp->nm_wsize; 1461 NFSUNLOCKMNT(nmp); 1462 nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ 1463 nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ 1464 while (tsiz > 0) { 1465 nmp = VFSTONFS(vnode_mount(vp)); 1466 if (nmp == NULL) { 1467 error = ENXIO; 1468 goto nfsmout; 1469 } 1470 *attrflagp = 0; 1471 len = (tsiz > wsize) ? wsize : tsiz; 1472 NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); 1473 if (nd->nd_flag & ND_NFSV4) { 1474 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1475 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); 1476 txdr_hyper(uiop->uio_offset, tl); 1477 tl += 2; 1478 *tl++ = txdr_unsigned(*iomode); 1479 *tl = txdr_unsigned(len); 1480 } else if (nd->nd_flag & ND_NFSV3) { 1481 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); 1482 txdr_hyper(uiop->uio_offset, tl); 1483 tl += 2; 1484 *tl++ = txdr_unsigned(len); 1485 *tl++ = txdr_unsigned(*iomode); 1486 *tl = txdr_unsigned(len); 1487 } else { 1488 u_int32_t x; 1489 1490 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1491 /* 1492 * Not sure why someone changed this, since the 1493 * RFC clearly states that "beginoffset" and 1494 * "totalcount" are ignored, but it wouldn't 1495 * surprise me if there's a busted server out there. 1496 */ 1497 /* Set both "begin" and "current" to non-garbage. */ 1498 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1499 *tl++ = x; /* "begin offset" */ 1500 *tl++ = x; /* "current offset" */ 1501 x = txdr_unsigned(len); 1502 *tl++ = x; /* total to this offset */ 1503 *tl = x; /* size of this write */ 1504 1505 } 1506 nfsm_uiombuf(nd, uiop, len); 1507 /* 1508 * Although it is tempting to do a normal Getattr Op in the 1509 * NFSv4 compound, the result can be a nearly hung client 1510 * system if the Getattr asks for Owner and/or OwnerGroup. 1511 * It occurs when the client can't map either the Owner or 1512 * Owner_group name in the Getattr reply to a uid/gid. When 1513 * there is a cache miss, the kernel does an upcall to the 1514 * nfsuserd. Then, it can try and read the local /etc/passwd 1515 * or /etc/group file. It can then block in getnewbuf(), 1516 * waiting for dirty writes to be pushed to the NFS server. 1517 * The only reason this doesn't result in a complete 1518 * deadlock, is that the upcall times out and allows 1519 * the write to complete. However, progress is so slow 1520 * that it might just as well be deadlocked. 1521 * So, we just get the attributes that change with each 1522 * write Op. 1523 * nb: nfscl_loadattrcache() needs to be told that these 1524 * partial attributes from a write rpc are being 1525 * passed in, via a argument flag. 1526 */ 1527 if (nd->nd_flag & ND_NFSV4) { 1528 NFSWRITEGETATTR_ATTRBIT(&attrbits); 1529 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1530 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1531 (void) nfsrv_putattrbit(nd, &attrbits); 1532 } 1533 error = nfscl_request(nd, vp, p, cred, stuff); 1534 if (error) 1535 return (error); 1536 if (nd->nd_repstat) { 1537 /* 1538 * In case the rpc gets retried, roll 1539 * the uio fileds changed by nfsm_uiombuf() 1540 * back. 1541 */ 1542 uiop->uio_offset -= len; 1543 uio_uio_resid_add(uiop, len); 1544 uio_iov_base_add(uiop, -len); 1545 uio_iov_len_add(uiop, len); 1546 } 1547 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1548 error = nfscl_wcc_data(nd, vp, nap, attrflagp, 1549 &wccflag, stuff); 1550 if (error) 1551 goto nfsmout; 1552 } 1553 if (!nd->nd_repstat) { 1554 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1555 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1556 + NFSX_VERF); 1557 rlen = fxdr_unsigned(int, *tl++); 1558 if (rlen == 0) { 1559 error = NFSERR_IO; 1560 goto nfsmout; 1561 } else if (rlen < len) { 1562 backup = len - rlen; 1563 uio_iov_base_add(uiop, -(backup)); 1564 uio_iov_len_add(uiop, backup); 1565 uiop->uio_offset -= backup; 1566 uio_uio_resid_add(uiop, backup); 1567 len = rlen; 1568 } 1569 commit = fxdr_unsigned(int, *tl++); 1570 1571 /* 1572 * Return the lowest committment level 1573 * obtained by any of the RPCs. 1574 */ 1575 if (committed == NFSWRITE_FILESYNC) 1576 committed = commit; 1577 else if (committed == NFSWRITE_DATASYNC && 1578 commit == NFSWRITE_UNSTABLE) 1579 committed = commit; 1580 if (verfp != NULL) 1581 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 1582 NFSLOCKMNT(nmp); 1583 if (!NFSHASWRITEVERF(nmp)) { 1584 NFSBCOPY((caddr_t)tl, 1585 (caddr_t)&nmp->nm_verf[0], 1586 NFSX_VERF); 1587 NFSSETWRITEVERF(nmp); 1588 } 1589 NFSUNLOCKMNT(nmp); 1590 } 1591 if (nd->nd_flag & ND_NFSV4) 1592 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1593 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { 1594 error = nfsm_loadattr(nd, nap); 1595 if (!error) 1596 *attrflagp = NFS_LATTR_NOSHRINK; 1597 } 1598 } else { 1599 error = nd->nd_repstat; 1600 } 1601 if (error) 1602 goto nfsmout; 1603 NFSWRITERPC_SETTIME(wccflag, np, (nd->nd_flag & ND_NFSV4)); 1604 mbuf_freem(nd->nd_mrep); 1605 nd->nd_mrep = NULL; 1606 tsiz -= len; 1607 } 1608 nfsmout: 1609 if (nd->nd_mrep != NULL) 1610 mbuf_freem(nd->nd_mrep); 1611 *iomode = committed; 1612 if (nd->nd_repstat && !error) 1613 error = nd->nd_repstat; 1614 return (error); 1615 } 1616 1617 /* 1618 * nfs mknod rpc 1619 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1620 * mode set to specify the file type and the size field for rdev. 1621 */ 1622 APPLESTATIC int 1623 nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1624 u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, 1625 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1626 int *attrflagp, int *dattrflagp, void *dstuff) 1627 { 1628 u_int32_t *tl; 1629 int error = 0; 1630 struct nfsrv_descript nfsd, *nd = &nfsd; 1631 nfsattrbit_t attrbits; 1632 1633 *nfhpp = NULL; 1634 *attrflagp = 0; 1635 *dattrflagp = 0; 1636 if (namelen > NFS_MAXNAMLEN) 1637 return (ENAMETOOLONG); 1638 NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); 1639 if (nd->nd_flag & ND_NFSV4) { 1640 if (vtyp == VBLK || vtyp == VCHR) { 1641 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1642 *tl++ = vtonfsv34_type(vtyp); 1643 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1644 *tl = txdr_unsigned(NFSMINOR(rdev)); 1645 } else { 1646 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1647 *tl = vtonfsv34_type(vtyp); 1648 } 1649 } 1650 (void) nfsm_strtom(nd, name, namelen); 1651 if (nd->nd_flag & ND_NFSV3) { 1652 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1653 *tl = vtonfsv34_type(vtyp); 1654 } 1655 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1656 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1657 if ((nd->nd_flag & ND_NFSV3) && 1658 (vtyp == VCHR || vtyp == VBLK)) { 1659 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1660 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1661 *tl = txdr_unsigned(NFSMINOR(rdev)); 1662 } 1663 if (nd->nd_flag & ND_NFSV4) { 1664 NFSGETATTR_ATTRBIT(&attrbits); 1665 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1666 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1667 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1668 (void) nfsrv_putattrbit(nd, &attrbits); 1669 } 1670 if (nd->nd_flag & ND_NFSV2) 1671 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); 1672 error = nfscl_request(nd, dvp, p, cred, dstuff); 1673 if (error) 1674 return (error); 1675 if (nd->nd_flag & ND_NFSV4) 1676 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1677 if (!nd->nd_repstat) { 1678 if (nd->nd_flag & ND_NFSV4) { 1679 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1680 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1681 if (error) 1682 goto nfsmout; 1683 } 1684 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1685 if (error) 1686 goto nfsmout; 1687 } 1688 if (nd->nd_flag & ND_NFSV3) 1689 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1690 if (!error && nd->nd_repstat) 1691 error = nd->nd_repstat; 1692 nfsmout: 1693 mbuf_freem(nd->nd_mrep); 1694 return (error); 1695 } 1696 1697 /* 1698 * nfs file create call 1699 * Mostly just call the approriate routine. (I separated out v4, so that 1700 * error recovery wouldn't be as difficult.) 1701 */ 1702 APPLESTATIC int 1703 nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1704 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1705 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1706 int *attrflagp, int *dattrflagp, void *dstuff) 1707 { 1708 int error = 0, newone, expireret = 0, retrycnt, unlocked; 1709 struct nfsclowner *owp; 1710 struct nfscldeleg *dp; 1711 struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); 1712 u_int32_t clidrev; 1713 1714 if (NFSHASNFSV4(nmp)) { 1715 retrycnt = 0; 1716 do { 1717 dp = NULL; 1718 error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | 1719 NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, 1720 NULL, 1); 1721 if (error) 1722 return (error); 1723 if (nmp->nm_clp != NULL) 1724 clidrev = nmp->nm_clp->nfsc_clientidrev; 1725 else 1726 clidrev = 0; 1727 error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, fmode, 1728 owp, &dp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1729 dstuff, &unlocked); 1730 if (dp != NULL) 1731 (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, 1732 (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); 1733 nfscl_ownerrelease(owp, error, newone, unlocked); 1734 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1735 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 1736 (void) nfs_catnap(PZERO, error, "nfs_open"); 1737 } else if ((error == NFSERR_EXPIRED || 1738 error == NFSERR_BADSTATEID) && clidrev != 0) { 1739 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1740 retrycnt++; 1741 } 1742 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1743 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1744 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1745 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1746 if (error && retrycnt >= 4) 1747 error = EIO; 1748 } else { 1749 error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, 1750 fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1751 dstuff); 1752 } 1753 return (error); 1754 } 1755 1756 /* 1757 * The create rpc for v2 and 3. 1758 */ 1759 static int 1760 nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1761 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1762 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1763 int *attrflagp, int *dattrflagp, void *dstuff) 1764 { 1765 u_int32_t *tl; 1766 int error = 0; 1767 struct nfsrv_descript nfsd, *nd = &nfsd; 1768 1769 *nfhpp = NULL; 1770 *attrflagp = 0; 1771 *dattrflagp = 0; 1772 if (namelen > NFS_MAXNAMLEN) 1773 return (ENAMETOOLONG); 1774 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1775 (void) nfsm_strtom(nd, name, namelen); 1776 if (nd->nd_flag & ND_NFSV3) { 1777 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1778 if (fmode & O_EXCL) { 1779 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1780 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1781 *tl++ = cverf.lval[0]; 1782 *tl = cverf.lval[1]; 1783 } else { 1784 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1785 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1786 } 1787 } else { 1788 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); 1789 } 1790 error = nfscl_request(nd, dvp, p, cred, dstuff); 1791 if (error) 1792 return (error); 1793 if (nd->nd_repstat == 0) { 1794 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1795 if (error) 1796 goto nfsmout; 1797 } 1798 if (nd->nd_flag & ND_NFSV3) 1799 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1800 if (nd->nd_repstat != 0 && error == 0) 1801 error = nd->nd_repstat; 1802 nfsmout: 1803 mbuf_freem(nd->nd_mrep); 1804 return (error); 1805 } 1806 1807 static int 1808 nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1809 nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, 1810 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 1811 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 1812 int *dattrflagp, void *dstuff, int *unlockedp) 1813 { 1814 u_int32_t *tl; 1815 int error = 0, deleg, newone, ret, acesize, limitby; 1816 struct nfsrv_descript nfsd, *nd = &nfsd; 1817 struct nfsclopen *op; 1818 struct nfscldeleg *dp = NULL; 1819 struct nfsnode *np; 1820 struct nfsfh *nfhp; 1821 nfsattrbit_t attrbits; 1822 nfsv4stateid_t stateid; 1823 u_int32_t rflags; 1824 1825 *unlockedp = 0; 1826 *nfhpp = NULL; 1827 *dpp = NULL; 1828 *attrflagp = 0; 1829 *dattrflagp = 0; 1830 if (namelen > NFS_MAXNAMLEN) 1831 return (ENAMETOOLONG); 1832 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1833 /* 1834 * For V4, this is actually an Open op. 1835 */ 1836 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1837 *tl++ = txdr_unsigned(owp->nfsow_seqid); 1838 *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | 1839 NFSV4OPEN_ACCESSREAD); 1840 *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); 1841 *tl++ = owp->nfsow_clp->nfsc_clientid.lval[0]; 1842 *tl = owp->nfsow_clp->nfsc_clientid.lval[1]; 1843 (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); 1844 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1845 *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); 1846 if (fmode & O_EXCL) { 1847 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1848 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1849 *tl++ = cverf.lval[0]; 1850 *tl = cverf.lval[1]; 1851 } else { 1852 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1853 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1854 } 1855 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1856 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 1857 (void) nfsm_strtom(nd, name, namelen); 1858 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1859 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1860 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1861 NFSGETATTR_ATTRBIT(&attrbits); 1862 (void) nfsrv_putattrbit(nd, &attrbits); 1863 error = nfscl_request(nd, dvp, p, cred, dstuff); 1864 if (error) 1865 return (error); 1866 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1867 if (error) 1868 goto nfsmout; 1869 NFSCL_INCRSEQID(owp->nfsow_seqid, nd); 1870 if (nd->nd_repstat == 0) { 1871 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1872 6 * NFSX_UNSIGNED); 1873 stateid.seqid = *tl++; 1874 stateid.other[0] = *tl++; 1875 stateid.other[1] = *tl++; 1876 stateid.other[2] = *tl; 1877 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 1878 (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1879 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1880 deleg = fxdr_unsigned(int, *tl); 1881 if (deleg == NFSV4OPEN_DELEGATEREAD || 1882 deleg == NFSV4OPEN_DELEGATEWRITE) { 1883 if (!(owp->nfsow_clp->nfsc_flags & 1884 NFSCLFLAGS_FIRSTDELEG)) 1885 owp->nfsow_clp->nfsc_flags |= 1886 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 1887 MALLOC(dp, struct nfscldeleg *, 1888 sizeof (struct nfscldeleg) + NFSX_V4FHMAX, 1889 M_NFSCLDELEG, M_WAITOK); 1890 LIST_INIT(&dp->nfsdl_owner); 1891 LIST_INIT(&dp->nfsdl_lock); 1892 dp->nfsdl_clp = owp->nfsow_clp; 1893 newnfs_copyincred(cred, &dp->nfsdl_cred); 1894 nfscl_lockinit(&dp->nfsdl_rwlock); 1895 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1896 NFSX_UNSIGNED); 1897 dp->nfsdl_stateid.seqid = *tl++; 1898 dp->nfsdl_stateid.other[0] = *tl++; 1899 dp->nfsdl_stateid.other[1] = *tl++; 1900 dp->nfsdl_stateid.other[2] = *tl++; 1901 ret = fxdr_unsigned(int, *tl); 1902 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 1903 dp->nfsdl_flags = NFSCLDL_WRITE; 1904 /* 1905 * Indicates how much the file can grow. 1906 */ 1907 NFSM_DISSECT(tl, u_int32_t *, 1908 3 * NFSX_UNSIGNED); 1909 limitby = fxdr_unsigned(int, *tl++); 1910 switch (limitby) { 1911 case NFSV4OPEN_LIMITSIZE: 1912 dp->nfsdl_sizelimit = fxdr_hyper(tl); 1913 break; 1914 case NFSV4OPEN_LIMITBLOCKS: 1915 dp->nfsdl_sizelimit = 1916 fxdr_unsigned(u_int64_t, *tl++); 1917 dp->nfsdl_sizelimit *= 1918 fxdr_unsigned(u_int64_t, *tl); 1919 break; 1920 default: 1921 error = NFSERR_BADXDR; 1922 goto nfsmout; 1923 }; 1924 } else { 1925 dp->nfsdl_flags = NFSCLDL_READ; 1926 } 1927 if (ret) 1928 dp->nfsdl_flags |= NFSCLDL_RECALL; 1929 error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, 1930 &acesize, p); 1931 if (error) 1932 goto nfsmout; 1933 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 1934 error = NFSERR_BADXDR; 1935 goto nfsmout; 1936 } 1937 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1938 if (error) 1939 goto nfsmout; 1940 if (dp != NULL && *attrflagp) { 1941 dp->nfsdl_change = nnap->na_filerev; 1942 dp->nfsdl_modtime = nnap->na_mtime; 1943 dp->nfsdl_flags |= NFSCLDL_MODTIMESET; 1944 } 1945 /* 1946 * We can now complete the Open state. 1947 */ 1948 nfhp = *nfhpp; 1949 if (dp != NULL) { 1950 dp->nfsdl_fhlen = nfhp->nfh_len; 1951 NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); 1952 } 1953 /* 1954 * Get an Open structure that will be 1955 * attached to the OpenOwner, acquired already. 1956 */ 1957 error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, 1958 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, 1959 cred, p, NULL, &op, &newone, NULL, 0); 1960 if (error) 1961 goto nfsmout; 1962 op->nfso_stateid = stateid; 1963 newnfs_copyincred(cred, &op->nfso_cred); 1964 if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { 1965 do { 1966 ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, 1967 nfhp->nfh_len, op, cred, p); 1968 if (ret == NFSERR_DELAY) 1969 (void) nfs_catnap(PZERO, ret, "nfs_create"); 1970 } while (ret == NFSERR_DELAY); 1971 error = ret; 1972 } 1973 1974 /* 1975 * If the server is handing out delegations, but we didn't 1976 * get one because an OpenConfirm was required, try the 1977 * Open again, to get a delegation. This is a harmless no-op, 1978 * from a server's point of view. 1979 */ 1980 if ((rflags & NFSV4OPEN_RESULTCONFIRM) && 1981 (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && 1982 !error && dp == NULL) { 1983 np = VTONFS(dvp); 1984 do { 1985 ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, 1986 np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 1987 nfhp->nfh_fh, nfhp->nfh_len, 1988 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, 1989 name, namelen, &dp, 0, 0x0, cred, p, 0, 1); 1990 if (ret == NFSERR_DELAY) 1991 (void) nfs_catnap(PZERO, ret, "nfs_crt2"); 1992 } while (ret == NFSERR_DELAY); 1993 if (ret) { 1994 if (dp != NULL) 1995 FREE((caddr_t)dp, M_NFSCLDELEG); 1996 if (ret == NFSERR_STALECLIENTID || 1997 ret == NFSERR_STALEDONTRECOVER) 1998 error = ret; 1999 } 2000 } 2001 nfscl_openrelease(op, error, newone); 2002 *unlockedp = 1; 2003 } 2004 if (nd->nd_repstat != 0 && error == 0) 2005 error = nd->nd_repstat; 2006 if (error == NFSERR_STALECLIENTID) 2007 nfscl_initiate_recovery(owp->nfsow_clp); 2008 nfsmout: 2009 if (!error) 2010 *dpp = dp; 2011 else if (dp != NULL) 2012 FREE((caddr_t)dp, M_NFSCLDELEG); 2013 mbuf_freem(nd->nd_mrep); 2014 return (error); 2015 } 2016 2017 /* 2018 * Nfs remove rpc 2019 */ 2020 APPLESTATIC int 2021 nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, 2022 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, 2023 void *dstuff) 2024 { 2025 u_int32_t *tl; 2026 struct nfsrv_descript nfsd, *nd = &nfsd; 2027 struct nfsnode *np; 2028 struct nfsmount *nmp; 2029 nfsv4stateid_t dstateid; 2030 int error, ret = 0, i; 2031 2032 *dattrflagp = 0; 2033 if (namelen > NFS_MAXNAMLEN) 2034 return (ENAMETOOLONG); 2035 nmp = VFSTONFS(vnode_mount(dvp)); 2036 tryagain: 2037 if (NFSHASNFSV4(nmp) && ret == 0) { 2038 ret = nfscl_removedeleg(vp, p, &dstateid); 2039 if (ret == 1) { 2040 NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); 2041 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 2042 NFSX_UNSIGNED); 2043 *tl++ = dstateid.seqid; 2044 *tl++ = dstateid.other[0]; 2045 *tl++ = dstateid.other[1]; 2046 *tl++ = dstateid.other[2]; 2047 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2048 np = VTONFS(dvp); 2049 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2050 np->n_fhp->nfh_len, 0); 2051 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2052 *tl = txdr_unsigned(NFSV4OP_REMOVE); 2053 } 2054 } else { 2055 ret = 0; 2056 } 2057 if (ret == 0) 2058 NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); 2059 (void) nfsm_strtom(nd, name, namelen); 2060 error = nfscl_request(nd, dvp, p, cred, dstuff); 2061 if (error) 2062 return (error); 2063 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2064 /* For NFSv4, parse out any Delereturn replies. */ 2065 if (ret > 0 && nd->nd_repstat != 0 && 2066 (nd->nd_flag & ND_NOMOREDATA)) { 2067 /* 2068 * If the Delegreturn failed, try again without 2069 * it. The server will Recall, as required. 2070 */ 2071 mbuf_freem(nd->nd_mrep); 2072 goto tryagain; 2073 } 2074 for (i = 0; i < (ret * 2); i++) { 2075 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2076 ND_NFSV4) { 2077 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2078 if (*(tl + 1)) 2079 nd->nd_flag |= ND_NOMOREDATA; 2080 } 2081 } 2082 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2083 } 2084 if (nd->nd_repstat && !error) 2085 error = nd->nd_repstat; 2086 nfsmout: 2087 mbuf_freem(nd->nd_mrep); 2088 return (error); 2089 } 2090 2091 /* 2092 * Do an nfs rename rpc. 2093 */ 2094 APPLESTATIC int 2095 nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, 2096 vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, 2097 NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, 2098 int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) 2099 { 2100 u_int32_t *tl; 2101 struct nfsrv_descript nfsd, *nd = &nfsd; 2102 struct nfsmount *nmp; 2103 struct nfsnode *np; 2104 nfsattrbit_t attrbits; 2105 nfsv4stateid_t fdstateid, tdstateid; 2106 int error = 0, ret = 0, gottd = 0, gotfd = 0, i; 2107 2108 *fattrflagp = 0; 2109 *tattrflagp = 0; 2110 nmp = VFSTONFS(vnode_mount(fdvp)); 2111 if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) 2112 return (ENAMETOOLONG); 2113 tryagain: 2114 if (NFSHASNFSV4(nmp) && ret == 0) { 2115 ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, 2116 &tdstateid, &gottd, p); 2117 if (gotfd && gottd) { 2118 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); 2119 } else if (gotfd) { 2120 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); 2121 } else if (gottd) { 2122 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); 2123 } 2124 if (gotfd) { 2125 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2126 *tl++ = fdstateid.seqid; 2127 *tl++ = fdstateid.other[0]; 2128 *tl++ = fdstateid.other[1]; 2129 *tl = fdstateid.other[2]; 2130 if (gottd) { 2131 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2132 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2133 np = VTONFS(tvp); 2134 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2135 np->n_fhp->nfh_len, 0); 2136 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2137 *tl = txdr_unsigned(NFSV4OP_DELEGRETURN); 2138 } 2139 } 2140 if (gottd) { 2141 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2142 *tl++ = tdstateid.seqid; 2143 *tl++ = tdstateid.other[0]; 2144 *tl++ = tdstateid.other[1]; 2145 *tl = tdstateid.other[2]; 2146 } 2147 if (ret > 0) { 2148 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2149 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2150 np = VTONFS(fdvp); 2151 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2152 np->n_fhp->nfh_len, 0); 2153 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2154 *tl = txdr_unsigned(NFSV4OP_SAVEFH); 2155 } 2156 } else { 2157 ret = 0; 2158 } 2159 if (ret == 0) 2160 NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); 2161 if (nd->nd_flag & ND_NFSV4) { 2162 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2163 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2164 NFSWCCATTR_ATTRBIT(&attrbits); 2165 (void) nfsrv_putattrbit(nd, &attrbits); 2166 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2167 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2168 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2169 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2170 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2171 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2172 (void) nfsrv_putattrbit(nd, &attrbits); 2173 nd->nd_flag |= ND_V4WCCATTR; 2174 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2175 *tl = txdr_unsigned(NFSV4OP_RENAME); 2176 } 2177 (void) nfsm_strtom(nd, fnameptr, fnamelen); 2178 if (!(nd->nd_flag & ND_NFSV4)) 2179 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2180 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2181 (void) nfsm_strtom(nd, tnameptr, tnamelen); 2182 error = nfscl_request(nd, fdvp, p, cred, fstuff); 2183 if (error) 2184 return (error); 2185 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2186 /* For NFSv4, parse out any Delereturn replies. */ 2187 if (ret > 0 && nd->nd_repstat != 0 && 2188 (nd->nd_flag & ND_NOMOREDATA)) { 2189 /* 2190 * If the Delegreturn failed, try again without 2191 * it. The server will Recall, as required. 2192 */ 2193 mbuf_freem(nd->nd_mrep); 2194 goto tryagain; 2195 } 2196 for (i = 0; i < (ret * 2); i++) { 2197 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2198 ND_NFSV4) { 2199 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2200 if (*(tl + 1)) { 2201 if (i == 0 && ret > 1) { 2202 /* 2203 * If the Delegreturn failed, try again 2204 * without it. The server will Recall, as 2205 * required. 2206 * If ret > 1, the first iteration of this 2207 * loop is the second DelegReturn result. 2208 */ 2209 mbuf_freem(nd->nd_mrep); 2210 goto tryagain; 2211 } else { 2212 nd->nd_flag |= ND_NOMOREDATA; 2213 } 2214 } 2215 } 2216 } 2217 /* Now, the first wcc attribute reply. */ 2218 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2219 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2220 if (*(tl + 1)) 2221 nd->nd_flag |= ND_NOMOREDATA; 2222 } 2223 error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, 2224 fstuff); 2225 /* and the second wcc attribute reply. */ 2226 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && 2227 !error) { 2228 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2229 if (*(tl + 1)) 2230 nd->nd_flag |= ND_NOMOREDATA; 2231 } 2232 if (!error) 2233 error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, 2234 NULL, tstuff); 2235 } 2236 if (nd->nd_repstat && !error) 2237 error = nd->nd_repstat; 2238 nfsmout: 2239 mbuf_freem(nd->nd_mrep); 2240 return (error); 2241 } 2242 2243 /* 2244 * nfs hard link create rpc 2245 */ 2246 APPLESTATIC int 2247 nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, 2248 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2249 struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) 2250 { 2251 u_int32_t *tl; 2252 struct nfsrv_descript nfsd, *nd = &nfsd; 2253 nfsattrbit_t attrbits; 2254 int error = 0; 2255 2256 *attrflagp = 0; 2257 *dattrflagp = 0; 2258 if (namelen > NFS_MAXNAMLEN) 2259 return (ENAMETOOLONG); 2260 NFSCL_REQSTART(nd, NFSPROC_LINK, vp); 2261 if (nd->nd_flag & ND_NFSV4) { 2262 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2263 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2264 } 2265 (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, 2266 VTONFS(dvp)->n_fhp->nfh_len, 0); 2267 if (nd->nd_flag & ND_NFSV4) { 2268 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2269 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2270 NFSWCCATTR_ATTRBIT(&attrbits); 2271 (void) nfsrv_putattrbit(nd, &attrbits); 2272 nd->nd_flag |= ND_V4WCCATTR; 2273 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2274 *tl = txdr_unsigned(NFSV4OP_LINK); 2275 } 2276 (void) nfsm_strtom(nd, name, namelen); 2277 error = nfscl_request(nd, vp, p, cred, dstuff); 2278 if (error) 2279 return (error); 2280 if (nd->nd_flag & ND_NFSV3) { 2281 error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); 2282 if (!error) 2283 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2284 NULL, dstuff); 2285 } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2286 /* 2287 * First, parse out the PutFH and Getattr result. 2288 */ 2289 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2290 if (!(*(tl + 1))) 2291 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2292 if (*(tl + 1)) 2293 nd->nd_flag |= ND_NOMOREDATA; 2294 /* 2295 * Get the pre-op attributes. 2296 */ 2297 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2298 } 2299 if (nd->nd_repstat && !error) 2300 error = nd->nd_repstat; 2301 nfsmout: 2302 mbuf_freem(nd->nd_mrep); 2303 return (error); 2304 } 2305 2306 /* 2307 * nfs symbolic link create rpc 2308 */ 2309 APPLESTATIC int 2310 nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, 2311 struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2312 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2313 int *dattrflagp, void *dstuff) 2314 { 2315 u_int32_t *tl; 2316 struct nfsrv_descript nfsd, *nd = &nfsd; 2317 struct nfsmount *nmp; 2318 int slen, error = 0; 2319 2320 *nfhpp = NULL; 2321 *attrflagp = 0; 2322 *dattrflagp = 0; 2323 nmp = VFSTONFS(vnode_mount(dvp)); 2324 slen = strlen(target); 2325 if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) 2326 return (ENAMETOOLONG); 2327 NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); 2328 if (nd->nd_flag & ND_NFSV4) { 2329 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2330 *tl = txdr_unsigned(NFLNK); 2331 (void) nfsm_strtom(nd, target, slen); 2332 } 2333 (void) nfsm_strtom(nd, name, namelen); 2334 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2335 nfscl_fillsattr(nd, vap, dvp, 0, 0); 2336 if (!(nd->nd_flag & ND_NFSV4)) 2337 (void) nfsm_strtom(nd, target, slen); 2338 if (nd->nd_flag & ND_NFSV2) 2339 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2340 error = nfscl_request(nd, dvp, p, cred, dstuff); 2341 if (error) 2342 return (error); 2343 if (nd->nd_flag & ND_NFSV4) 2344 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2345 if ((nd->nd_flag & ND_NFSV3) && !error) { 2346 if (!nd->nd_repstat) 2347 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2348 if (!error) 2349 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2350 NULL, dstuff); 2351 } 2352 if (nd->nd_repstat && !error) 2353 error = nd->nd_repstat; 2354 mbuf_freem(nd->nd_mrep); 2355 /* 2356 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2357 */ 2358 if (error == EEXIST) 2359 error = 0; 2360 return (error); 2361 } 2362 2363 /* 2364 * nfs make dir rpc 2365 */ 2366 APPLESTATIC int 2367 nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, 2368 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2369 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2370 int *dattrflagp, void *dstuff) 2371 { 2372 u_int32_t *tl; 2373 struct nfsrv_descript nfsd, *nd = &nfsd; 2374 nfsattrbit_t attrbits; 2375 int error = 0; 2376 2377 *nfhpp = NULL; 2378 *attrflagp = 0; 2379 *dattrflagp = 0; 2380 if (namelen > NFS_MAXNAMLEN) 2381 return (ENAMETOOLONG); 2382 NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); 2383 if (nd->nd_flag & ND_NFSV4) { 2384 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2385 *tl = txdr_unsigned(NFDIR); 2386 } 2387 (void) nfsm_strtom(nd, name, namelen); 2388 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2389 if (nd->nd_flag & ND_NFSV4) { 2390 NFSGETATTR_ATTRBIT(&attrbits); 2391 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2392 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2393 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2394 (void) nfsrv_putattrbit(nd, &attrbits); 2395 } 2396 error = nfscl_request(nd, dvp, p, cred, dstuff); 2397 if (error) 2398 return (error); 2399 if (nd->nd_flag & ND_NFSV4) 2400 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2401 if (!nd->nd_repstat && !error) { 2402 if (nd->nd_flag & ND_NFSV4) { 2403 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2404 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 2405 } 2406 if (!error) 2407 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2408 } 2409 if ((nd->nd_flag & ND_NFSV3) && !error) 2410 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2411 if (nd->nd_repstat && !error) 2412 error = nd->nd_repstat; 2413 nfsmout: 2414 mbuf_freem(nd->nd_mrep); 2415 /* 2416 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry. 2417 */ 2418 if (error == EEXIST) 2419 error = 0; 2420 return (error); 2421 } 2422 2423 /* 2424 * nfs remove directory call 2425 */ 2426 APPLESTATIC int 2427 nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, 2428 NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) 2429 { 2430 struct nfsrv_descript nfsd, *nd = &nfsd; 2431 int error = 0; 2432 2433 *dattrflagp = 0; 2434 if (namelen > NFS_MAXNAMLEN) 2435 return (ENAMETOOLONG); 2436 NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); 2437 (void) nfsm_strtom(nd, name, namelen); 2438 error = nfscl_request(nd, dvp, p, cred, dstuff); 2439 if (error) 2440 return (error); 2441 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2442 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2443 if (nd->nd_repstat && !error) 2444 error = nd->nd_repstat; 2445 mbuf_freem(nd->nd_mrep); 2446 /* 2447 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2448 */ 2449 if (error == ENOENT) 2450 error = 0; 2451 return (error); 2452 } 2453 2454 /* 2455 * Readdir rpc. 2456 * Always returns with either uio_resid unchanged, if you are at the 2457 * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks 2458 * filled in. 2459 * I felt this would allow caching of directory blocks more easily 2460 * than returning a pertially filled block. 2461 * Directory offset cookies: 2462 * Oh my, what to do with them... 2463 * I can think of three ways to deal with them: 2464 * 1 - have the layer above these RPCs maintain a map between logical 2465 * directory byte offsets and the NFS directory offset cookies 2466 * 2 - pass the opaque directory offset cookies up into userland 2467 * and let the libc functions deal with them, via the system call 2468 * 3 - return them to userland in the "struct dirent", so future versions 2469 * of libc can use them and do whatever is necessary to amke things work 2470 * above these rpc calls, in the meantime 2471 * For now, I do #3 by "hiding" the directory offset cookies after the 2472 * d_name field in struct dirent. This is space inside d_reclen that 2473 * will be ignored by anything that doesn't know about them. 2474 * The directory offset cookies are filled in as the last 8 bytes of 2475 * each directory entry, after d_name. Someday, the userland libc 2476 * functions may be able to use these. In the meantime, it satisfies 2477 * OpenBSD's requirements for cookies being returned. 2478 * If expects the directory offset cookie for the read to be in uio_offset 2479 * and returns the one for the next entry after this directory block in 2480 * there, as well. 2481 */ 2482 APPLESTATIC int 2483 nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2484 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2485 int *eofp, void *stuff) 2486 { 2487 int len, left; 2488 struct dirent *dp = NULL; 2489 u_int32_t *tl; 2490 nfsquad_t cookie, ncookie; 2491 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2492 struct nfsnode *dnp = VTONFS(vp); 2493 struct nfsvattr nfsva; 2494 struct nfsrv_descript nfsd, *nd = &nfsd; 2495 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2496 int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; 2497 long dotfileid, dotdotfileid = 0; 2498 u_int32_t fakefileno = 0xffffffff, rderr; 2499 char *cp; 2500 nfsattrbit_t attrbits, dattrbits; 2501 u_int32_t *tl2 = NULL; 2502 size_t tresid; 2503 2504 #ifdef DIAGNOSTIC 2505 if (uiop->uio_iovcnt != 1 || (uio_uio_resid(uiop) & (DIRBLKSIZ - 1))) 2506 panic("nfs readdirrpc bad uio"); 2507 #endif 2508 2509 /* 2510 * There is no point in reading a lot more than uio_resid, however 2511 * adding one additional DIRBLKSIZ makes sense. Since uio_resid 2512 * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this 2513 * will never make readsize > nm_readdirsize. 2514 */ 2515 readsize = nmp->nm_readdirsize; 2516 if (readsize > uio_uio_resid(uiop)) 2517 readsize = uio_uio_resid(uiop) + DIRBLKSIZ; 2518 2519 *attrflagp = 0; 2520 if (eofp) 2521 *eofp = 0; 2522 tresid = uio_uio_resid(uiop); 2523 cookie.lval[0] = cookiep->nfsuquad[0]; 2524 cookie.lval[1] = cookiep->nfsuquad[1]; 2525 nd->nd_mrep = NULL; 2526 2527 /* 2528 * For NFSv4, first create the "." and ".." entries. 2529 */ 2530 if (NFSHASNFSV4(nmp)) { 2531 reqsize = 6 * NFSX_UNSIGNED; 2532 NFSGETATTR_ATTRBIT(&dattrbits); 2533 NFSZERO_ATTRBIT(&attrbits); 2534 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2535 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); 2536 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2537 NFSATTRBIT_MOUNTEDONFILEID)) { 2538 NFSSETBIT_ATTRBIT(&attrbits, 2539 NFSATTRBIT_MOUNTEDONFILEID); 2540 gotmnton = 1; 2541 } else { 2542 /* 2543 * Must fake it. Use the fileno, except when the 2544 * fsid is != to that of the directory. For that 2545 * case, generate a fake fileno that is not the same. 2546 */ 2547 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2548 gotmnton = 0; 2549 } 2550 2551 /* 2552 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2553 */ 2554 if (uiop->uio_offset == 0) { 2555 #if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2556 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2557 #else 2558 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2559 #endif 2560 if (error) 2561 return (error); 2562 dotfileid = nfsva.na_fileid; 2563 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2564 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2565 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2566 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2567 (void) nfsrv_putattrbit(nd, &attrbits); 2568 error = nfscl_request(nd, vp, p, cred, stuff); 2569 if (error) 2570 return (error); 2571 if (nd->nd_repstat == 0) { 2572 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2573 len = fxdr_unsigned(int, *(tl + 2)); 2574 if (len > 0 && len <= NFSX_V4FHMAX) 2575 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2576 else 2577 error = EPERM; 2578 if (!error) { 2579 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2580 nfsva.na_mntonfileno = 0xffffffff; 2581 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2582 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2583 NULL, NULL, NULL, p, cred); 2584 if (error) { 2585 dotdotfileid = dotfileid; 2586 } else if (gotmnton) { 2587 if (nfsva.na_mntonfileno != 0xffffffff) 2588 dotdotfileid = nfsva.na_mntonfileno; 2589 else 2590 dotdotfileid = nfsva.na_fileid; 2591 } else if (nfsva.na_filesid[0] == 2592 dnp->n_vattr.na_filesid[0] && 2593 nfsva.na_filesid[1] == 2594 dnp->n_vattr.na_filesid[1]) { 2595 dotdotfileid = nfsva.na_fileid; 2596 } else { 2597 do { 2598 fakefileno--; 2599 } while (fakefileno == 2600 nfsva.na_fileid); 2601 dotdotfileid = fakefileno; 2602 } 2603 } 2604 } else if (nd->nd_repstat == NFSERR_NOENT) { 2605 /* 2606 * Lookupp returns NFSERR_NOENT when we are 2607 * at the root, so just use the current dir. 2608 */ 2609 nd->nd_repstat = 0; 2610 dotdotfileid = dotfileid; 2611 } else { 2612 error = nd->nd_repstat; 2613 } 2614 mbuf_freem(nd->nd_mrep); 2615 if (error) 2616 return (error); 2617 nd->nd_mrep = NULL; 2618 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2619 dp->d_type = DT_DIR; 2620 dp->d_fileno = dotfileid; 2621 dp->d_namlen = 1; 2622 dp->d_name[0] = '.'; 2623 dp->d_name[1] = '\0'; 2624 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2625 /* 2626 * Just make these offset cookie 0. 2627 */ 2628 tl = (u_int32_t *)&dp->d_name[4]; 2629 *tl++ = 0; 2630 *tl = 0; 2631 blksiz += dp->d_reclen; 2632 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2633 uiop->uio_offset += dp->d_reclen; 2634 uio_iov_base_add(uiop, dp->d_reclen); 2635 uio_iov_len_add(uiop, -(dp->d_reclen)); 2636 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2637 dp->d_type = DT_DIR; 2638 dp->d_fileno = dotdotfileid; 2639 dp->d_namlen = 2; 2640 dp->d_name[0] = '.'; 2641 dp->d_name[1] = '.'; 2642 dp->d_name[2] = '\0'; 2643 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2644 /* 2645 * Just make these offset cookie 0. 2646 */ 2647 tl = (u_int32_t *)&dp->d_name[4]; 2648 *tl++ = 0; 2649 *tl = 0; 2650 blksiz += dp->d_reclen; 2651 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2652 uiop->uio_offset += dp->d_reclen; 2653 uio_iov_base_add(uiop, dp->d_reclen); 2654 uio_iov_len_add(uiop, -(dp->d_reclen)); 2655 } 2656 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); 2657 } else { 2658 reqsize = 5 * NFSX_UNSIGNED; 2659 } 2660 2661 2662 /* 2663 * Loop around doing readdir rpc's of size readsize. 2664 * The stopping criteria is EOF or buffer full. 2665 */ 2666 while (more_dirs && bigenough) { 2667 *attrflagp = 0; 2668 NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); 2669 if (nd->nd_flag & ND_NFSV2) { 2670 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2671 *tl++ = cookie.lval[1]; 2672 *tl = txdr_unsigned(readsize); 2673 } else { 2674 NFSM_BUILD(tl, u_int32_t *, reqsize); 2675 *tl++ = cookie.lval[0]; 2676 *tl++ = cookie.lval[1]; 2677 if (cookie.qval == 0) { 2678 *tl++ = 0; 2679 *tl++ = 0; 2680 } else { 2681 NFSLOCKNODE(dnp); 2682 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2683 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2684 NFSUNLOCKNODE(dnp); 2685 } 2686 if (nd->nd_flag & ND_NFSV4) { 2687 *tl++ = txdr_unsigned(readsize); 2688 *tl = txdr_unsigned(readsize); 2689 (void) nfsrv_putattrbit(nd, &attrbits); 2690 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2691 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2692 (void) nfsrv_putattrbit(nd, &dattrbits); 2693 } else { 2694 *tl = txdr_unsigned(readsize); 2695 } 2696 } 2697 error = nfscl_request(nd, vp, p, cred, stuff); 2698 if (error) 2699 return (error); 2700 if (!(nd->nd_flag & ND_NFSV2)) { 2701 if (nd->nd_flag & ND_NFSV3) 2702 error = nfscl_postop_attr(nd, nap, attrflagp, 2703 stuff); 2704 if (!nd->nd_repstat && !error) { 2705 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 2706 NFSLOCKNODE(dnp); 2707 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2708 dnp->n_cookieverf.nfsuquad[1] = *tl; 2709 NFSUNLOCKNODE(dnp); 2710 } 2711 } 2712 if (nd->nd_repstat || error) { 2713 if (!error) 2714 error = nd->nd_repstat; 2715 goto nfsmout; 2716 } 2717 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2718 more_dirs = fxdr_unsigned(int, *tl); 2719 if (!more_dirs) 2720 tryformoredirs = 0; 2721 2722 /* loop thru the dir entries, doctoring them to 4bsd form */ 2723 while (more_dirs && bigenough) { 2724 if (nd->nd_flag & ND_NFSV4) { 2725 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2726 ncookie.lval[0] = *tl++; 2727 ncookie.lval[1] = *tl++; 2728 len = fxdr_unsigned(int, *tl); 2729 } else if (nd->nd_flag & ND_NFSV3) { 2730 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2731 nfsva.na_fileid = 2732 fxdr_unsigned(long, *++tl); 2733 len = fxdr_unsigned(int, *++tl); 2734 } else { 2735 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2736 nfsva.na_fileid = 2737 fxdr_unsigned(long, *tl++); 2738 len = fxdr_unsigned(int, *tl); 2739 } 2740 if (len <= 0 || len > NFS_MAXNAMLEN) { 2741 error = EBADRPC; 2742 goto nfsmout; 2743 } 2744 tlen = NFSM_RNDUP(len); 2745 if (tlen == len) 2746 tlen += 4; /* To ensure null termination */ 2747 left = DIRBLKSIZ - blksiz; 2748 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > left) { 2749 dp->d_reclen += left; 2750 uio_iov_base_add(uiop, left); 2751 uio_iov_len_add(uiop, -(left)); 2752 uio_uio_resid_add(uiop, -(left)); 2753 uiop->uio_offset += left; 2754 blksiz = 0; 2755 } 2756 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 2757 bigenough = 0; 2758 if (bigenough) { 2759 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2760 dp->d_namlen = len; 2761 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 2762 dp->d_type = DT_UNKNOWN; 2763 blksiz += dp->d_reclen; 2764 if (blksiz == DIRBLKSIZ) 2765 blksiz = 0; 2766 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 2767 uiop->uio_offset += DIRHDSIZ; 2768 uio_iov_base_add(uiop, DIRHDSIZ); 2769 uio_iov_len_add(uiop, -(DIRHDSIZ)); 2770 error = nfsm_mbufuio(nd, uiop, len); 2771 if (error) 2772 goto nfsmout; 2773 cp = CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2774 tlen -= len; 2775 *cp = '\0'; /* null terminate */ 2776 cp += tlen; /* points to cookie storage */ 2777 tl2 = (u_int32_t *)cp; 2778 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 2779 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 2780 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 2781 uiop->uio_offset += (tlen + NFSX_HYPER); 2782 } else { 2783 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2784 if (error) 2785 goto nfsmout; 2786 } 2787 if (nd->nd_flag & ND_NFSV4) { 2788 rderr = 0; 2789 nfsva.na_mntonfileno = 0xffffffff; 2790 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2791 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2792 NULL, NULL, &rderr, p, cred); 2793 if (error) 2794 goto nfsmout; 2795 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2796 } else if (nd->nd_flag & ND_NFSV3) { 2797 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2798 ncookie.lval[0] = *tl++; 2799 ncookie.lval[1] = *tl++; 2800 } else { 2801 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2802 ncookie.lval[0] = 0; 2803 ncookie.lval[1] = *tl++; 2804 } 2805 if (bigenough) { 2806 if (nd->nd_flag & ND_NFSV4) { 2807 if (rderr) { 2808 dp->d_fileno = 0; 2809 } else { 2810 if (gotmnton) { 2811 if (nfsva.na_mntonfileno != 0xffffffff) 2812 dp->d_fileno = nfsva.na_mntonfileno; 2813 else 2814 dp->d_fileno = nfsva.na_fileid; 2815 } else if (nfsva.na_filesid[0] == 2816 dnp->n_vattr.na_filesid[0] && 2817 nfsva.na_filesid[1] == 2818 dnp->n_vattr.na_filesid[1]) { 2819 dp->d_fileno = nfsva.na_fileid; 2820 } else { 2821 do { 2822 fakefileno--; 2823 } while (fakefileno == 2824 nfsva.na_fileid); 2825 dp->d_fileno = fakefileno; 2826 } 2827 dp->d_type = vtonfs_dtype(nfsva.na_type); 2828 } 2829 } else { 2830 dp->d_fileno = nfsva.na_fileid; 2831 } 2832 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 2833 ncookie.lval[0]; 2834 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 2835 ncookie.lval[1]; 2836 } 2837 more_dirs = fxdr_unsigned(int, *tl); 2838 } 2839 /* 2840 * If at end of rpc data, get the eof boolean 2841 */ 2842 if (!more_dirs) { 2843 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2844 eof = fxdr_unsigned(int, *tl); 2845 if (tryformoredirs) 2846 more_dirs = !eof; 2847 if (nd->nd_flag & ND_NFSV4) { 2848 error = nfscl_postop_attr(nd, nap, attrflagp, 2849 stuff); 2850 if (error) 2851 goto nfsmout; 2852 } 2853 } 2854 mbuf_freem(nd->nd_mrep); 2855 nd->nd_mrep = NULL; 2856 } 2857 /* 2858 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 2859 * by increasing d_reclen for the last record. 2860 */ 2861 if (blksiz > 0) { 2862 left = DIRBLKSIZ - blksiz; 2863 dp->d_reclen += left; 2864 uio_iov_base_add(uiop, left); 2865 uio_iov_len_add(uiop, -(left)); 2866 uio_uio_resid_add(uiop, -(left)); 2867 uiop->uio_offset += left; 2868 } 2869 2870 /* 2871 * If returning no data, assume end of file. 2872 * If not bigenough, return not end of file, since you aren't 2873 * returning all the data 2874 * Otherwise, return the eof flag from the server. 2875 */ 2876 if (eofp) { 2877 if (tresid == ((size_t)(uio_uio_resid(uiop)))) 2878 *eofp = 1; 2879 else if (!bigenough) 2880 *eofp = 0; 2881 else 2882 *eofp = eof; 2883 } 2884 2885 /* 2886 * Add extra empty records to any remaining DIRBLKSIZ chunks. 2887 */ 2888 while (uio_uio_resid(uiop) > 0 && ((size_t)(uio_uio_resid(uiop))) != tresid) { 2889 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2890 dp->d_type = DT_UNKNOWN; 2891 dp->d_fileno = 0; 2892 dp->d_namlen = 0; 2893 dp->d_name[0] = '\0'; 2894 tl = (u_int32_t *)&dp->d_name[4]; 2895 *tl++ = cookie.lval[0]; 2896 *tl = cookie.lval[1]; 2897 dp->d_reclen = DIRBLKSIZ; 2898 uio_iov_base_add(uiop, DIRBLKSIZ); 2899 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 2900 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 2901 uiop->uio_offset += DIRBLKSIZ; 2902 } 2903 2904 nfsmout: 2905 if (nd->nd_mrep != NULL) 2906 mbuf_freem(nd->nd_mrep); 2907 return (error); 2908 } 2909 2910 #ifndef APPLE 2911 /* 2912 * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). 2913 * (Also used for NFS V4 when mount flag set.) 2914 * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) 2915 */ 2916 APPLESTATIC int 2917 nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2918 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2919 int *eofp, void *stuff) 2920 { 2921 int len, left; 2922 struct dirent *dp = NULL; 2923 u_int32_t *tl; 2924 vnode_t newvp = NULLVP; 2925 struct nfsrv_descript nfsd, *nd = &nfsd; 2926 struct nameidata nami, *ndp = &nami; 2927 struct componentname *cnp = &ndp->ni_cnd; 2928 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2929 struct nfsnode *dnp = VTONFS(vp), *np; 2930 struct nfsvattr nfsva; 2931 struct nfsfh *nfhp; 2932 nfsquad_t cookie, ncookie; 2933 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2934 int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; 2935 int unlocknewvp = 0; 2936 long dotfileid, dotdotfileid = 0, fileno = 0; 2937 char *cp; 2938 nfsattrbit_t attrbits, dattrbits; 2939 size_t tresid; 2940 u_int32_t *tl2 = NULL, fakefileno = 0xffffffff, rderr; 2941 2942 #ifdef DIAGNOSTIC 2943 if (uiop->uio_iovcnt != 1 || (uio_uio_resid(uiop) & (DIRBLKSIZ - 1))) 2944 panic("nfs readdirplusrpc bad uio"); 2945 #endif 2946 *attrflagp = 0; 2947 if (eofp != NULL) 2948 *eofp = 0; 2949 ndp->ni_dvp = vp; 2950 nd->nd_mrep = NULL; 2951 cookie.lval[0] = cookiep->nfsuquad[0]; 2952 cookie.lval[1] = cookiep->nfsuquad[1]; 2953 tresid = uio_uio_resid(uiop); 2954 2955 /* 2956 * For NFSv4, first create the "." and ".." entries. 2957 */ 2958 if (NFSHASNFSV4(nmp)) { 2959 NFSGETATTR_ATTRBIT(&dattrbits); 2960 NFSZERO_ATTRBIT(&attrbits); 2961 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2962 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2963 NFSATTRBIT_MOUNTEDONFILEID)) { 2964 NFSSETBIT_ATTRBIT(&attrbits, 2965 NFSATTRBIT_MOUNTEDONFILEID); 2966 gotmnton = 1; 2967 } else { 2968 /* 2969 * Must fake it. Use the fileno, except when the 2970 * fsid is != to that of the directory. For that 2971 * case, generate a fake fileno that is not the same. 2972 */ 2973 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2974 gotmnton = 0; 2975 } 2976 2977 /* 2978 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2979 */ 2980 if (uiop->uio_offset == 0) { 2981 #if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2982 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2983 #else 2984 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2985 #endif 2986 if (error) 2987 return (error); 2988 dotfileid = nfsva.na_fileid; 2989 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2990 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2991 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2992 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2993 (void) nfsrv_putattrbit(nd, &attrbits); 2994 error = nfscl_request(nd, vp, p, cred, stuff); 2995 if (error) 2996 return (error); 2997 if (nd->nd_repstat == 0) { 2998 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2999 len = fxdr_unsigned(int, *(tl + 2)); 3000 if (len > 0 && len <= NFSX_V4FHMAX) 3001 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3002 else 3003 error = EPERM; 3004 if (!error) { 3005 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 3006 nfsva.na_mntonfileno = 0xffffffff; 3007 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 3008 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3009 NULL, NULL, NULL, p, cred); 3010 if (error) { 3011 dotdotfileid = dotfileid; 3012 } else if (gotmnton) { 3013 if (nfsva.na_mntonfileno != 0xffffffff) 3014 dotdotfileid = nfsva.na_mntonfileno; 3015 else 3016 dotdotfileid = nfsva.na_fileid; 3017 } else if (nfsva.na_filesid[0] == 3018 dnp->n_vattr.na_filesid[0] && 3019 nfsva.na_filesid[1] == 3020 dnp->n_vattr.na_filesid[1]) { 3021 dotdotfileid = nfsva.na_fileid; 3022 } else { 3023 do { 3024 fakefileno--; 3025 } while (fakefileno == 3026 nfsva.na_fileid); 3027 dotdotfileid = fakefileno; 3028 } 3029 } 3030 } else if (nd->nd_repstat == NFSERR_NOENT) { 3031 /* 3032 * Lookupp returns NFSERR_NOENT when we are 3033 * at the root, so just use the current dir. 3034 */ 3035 nd->nd_repstat = 0; 3036 dotdotfileid = dotfileid; 3037 } else { 3038 error = nd->nd_repstat; 3039 } 3040 mbuf_freem(nd->nd_mrep); 3041 if (error) 3042 return (error); 3043 nd->nd_mrep = NULL; 3044 dp = (struct dirent *)uio_iov_base(uiop); 3045 dp->d_type = DT_DIR; 3046 dp->d_fileno = dotfileid; 3047 dp->d_namlen = 1; 3048 dp->d_name[0] = '.'; 3049 dp->d_name[1] = '\0'; 3050 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3051 /* 3052 * Just make these offset cookie 0. 3053 */ 3054 tl = (u_int32_t *)&dp->d_name[4]; 3055 *tl++ = 0; 3056 *tl = 0; 3057 blksiz += dp->d_reclen; 3058 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3059 uiop->uio_offset += dp->d_reclen; 3060 uio_iov_base_add(uiop, dp->d_reclen); 3061 uio_iov_len_add(uiop, -(dp->d_reclen)); 3062 dp = (struct dirent *)uio_iov_base(uiop); 3063 dp->d_type = DT_DIR; 3064 dp->d_fileno = dotdotfileid; 3065 dp->d_namlen = 2; 3066 dp->d_name[0] = '.'; 3067 dp->d_name[1] = '.'; 3068 dp->d_name[2] = '\0'; 3069 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3070 /* 3071 * Just make these offset cookie 0. 3072 */ 3073 tl = (u_int32_t *)&dp->d_name[4]; 3074 *tl++ = 0; 3075 *tl = 0; 3076 blksiz += dp->d_reclen; 3077 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3078 uiop->uio_offset += dp->d_reclen; 3079 uio_iov_base_add(uiop, dp->d_reclen); 3080 uio_iov_len_add(uiop, -(dp->d_reclen)); 3081 } 3082 NFSREADDIRPLUS_ATTRBIT(&attrbits); 3083 if (gotmnton) 3084 NFSSETBIT_ATTRBIT(&attrbits, 3085 NFSATTRBIT_MOUNTEDONFILEID); 3086 } 3087 3088 /* 3089 * Loop around doing readdir rpc's of size nm_readdirsize. 3090 * The stopping criteria is EOF or buffer full. 3091 */ 3092 while (more_dirs && bigenough) { 3093 *attrflagp = 0; 3094 NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); 3095 NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 3096 *tl++ = cookie.lval[0]; 3097 *tl++ = cookie.lval[1]; 3098 if (cookie.qval == 0) { 3099 *tl++ = 0; 3100 *tl++ = 0; 3101 } else { 3102 NFSLOCKNODE(dnp); 3103 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 3104 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 3105 NFSUNLOCKNODE(dnp); 3106 } 3107 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 3108 *tl = txdr_unsigned(nmp->nm_readdirsize); 3109 if (nd->nd_flag & ND_NFSV4) { 3110 (void) nfsrv_putattrbit(nd, &attrbits); 3111 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3112 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3113 (void) nfsrv_putattrbit(nd, &dattrbits); 3114 } 3115 error = nfscl_request(nd, vp, p, cred, stuff); 3116 if (error) 3117 return (error); 3118 if (nd->nd_flag & ND_NFSV3) 3119 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3120 if (nd->nd_repstat || error) { 3121 if (!error) 3122 error = nd->nd_repstat; 3123 goto nfsmout; 3124 } 3125 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3126 NFSLOCKNODE(dnp); 3127 dnp->n_cookieverf.nfsuquad[0] = *tl++; 3128 dnp->n_cookieverf.nfsuquad[1] = *tl++; 3129 NFSUNLOCKNODE(dnp); 3130 more_dirs = fxdr_unsigned(int, *tl); 3131 if (!more_dirs) 3132 tryformoredirs = 0; 3133 3134 /* loop thru the dir entries, doctoring them to 4bsd form */ 3135 while (more_dirs && bigenough) { 3136 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3137 if (nd->nd_flag & ND_NFSV4) { 3138 ncookie.lval[0] = *tl++; 3139 ncookie.lval[1] = *tl++; 3140 } else { 3141 fileno = fxdr_unsigned(long, *++tl); 3142 tl++; 3143 } 3144 len = fxdr_unsigned(int, *tl); 3145 if (len <= 0 || len > NFS_MAXNAMLEN) { 3146 error = EBADRPC; 3147 goto nfsmout; 3148 } 3149 tlen = NFSM_RNDUP(len); 3150 if (tlen == len) 3151 tlen += 4; /* To ensure null termination */ 3152 left = DIRBLKSIZ - blksiz; 3153 if ((tlen + DIRHDSIZ + NFSX_HYPER) > left) { 3154 dp->d_reclen += left; 3155 uio_iov_base_add(uiop, left); 3156 uio_iov_len_add(uiop, -(left)); 3157 uio_uio_resid_add(uiop, -(left)); 3158 uiop->uio_offset += left; 3159 blksiz = 0; 3160 } 3161 if ((tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 3162 bigenough = 0; 3163 if (bigenough) { 3164 dp = (struct dirent *)uio_iov_base(uiop); 3165 dp->d_namlen = len; 3166 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 3167 dp->d_type = DT_UNKNOWN; 3168 blksiz += dp->d_reclen; 3169 if (blksiz == DIRBLKSIZ) 3170 blksiz = 0; 3171 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 3172 uiop->uio_offset += DIRHDSIZ; 3173 uio_iov_base_add(uiop, DIRHDSIZ); 3174 uio_iov_len_add(uiop, -(DIRHDSIZ)); 3175 cnp->cn_nameptr = uio_iov_base(uiop); 3176 cnp->cn_namelen = len; 3177 NFSCNHASHZERO(cnp); 3178 error = nfsm_mbufuio(nd, uiop, len); 3179 if (error) 3180 goto nfsmout; 3181 cp = uio_iov_base(uiop); 3182 tlen -= len; 3183 *cp = '\0'; 3184 cp += tlen; /* points to cookie storage */ 3185 tl2 = (u_int32_t *)cp; 3186 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 3187 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 3188 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 3189 uiop->uio_offset += (tlen + NFSX_HYPER); 3190 } else { 3191 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3192 if (error) 3193 goto nfsmout; 3194 } 3195 nfhp = NULL; 3196 if (nd->nd_flag & ND_NFSV3) { 3197 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3198 ncookie.lval[0] = *tl++; 3199 ncookie.lval[1] = *tl++; 3200 attrflag = fxdr_unsigned(int, *tl); 3201 if (attrflag) { 3202 error = nfsm_loadattr(nd, &nfsva); 3203 if (error) 3204 goto nfsmout; 3205 } 3206 NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); 3207 if (*tl) { 3208 error = nfsm_getfh(nd, &nfhp); 3209 if (error) 3210 goto nfsmout; 3211 } 3212 if (!attrflag && nfhp != NULL) { 3213 FREE((caddr_t)nfhp, M_NFSFH); 3214 nfhp = NULL; 3215 } 3216 } else { 3217 rderr = 0; 3218 nfsva.na_mntonfileno = 0xffffffff; 3219 error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, 3220 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3221 NULL, NULL, &rderr, p, cred); 3222 if (error) 3223 goto nfsmout; 3224 } 3225 3226 if (bigenough) { 3227 if (nd->nd_flag & ND_NFSV4) { 3228 if (rderr) { 3229 dp->d_fileno = 0; 3230 } else if (gotmnton) { 3231 if (nfsva.na_mntonfileno != 0xffffffff) 3232 dp->d_fileno = nfsva.na_mntonfileno; 3233 else 3234 dp->d_fileno = nfsva.na_fileid; 3235 } else if (nfsva.na_filesid[0] == 3236 dnp->n_vattr.na_filesid[0] && 3237 nfsva.na_filesid[1] == 3238 dnp->n_vattr.na_filesid[1]) { 3239 dp->d_fileno = nfsva.na_fileid; 3240 } else { 3241 do { 3242 fakefileno--; 3243 } while (fakefileno == 3244 nfsva.na_fileid); 3245 dp->d_fileno = fakefileno; 3246 } 3247 } else { 3248 dp->d_fileno = fileno; 3249 } 3250 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 3251 ncookie.lval[0]; 3252 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 3253 ncookie.lval[1]; 3254 3255 if (nfhp != NULL) { 3256 if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, 3257 dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { 3258 VREF(vp); 3259 newvp = vp; 3260 unlocknewvp = 0; 3261 FREE((caddr_t)nfhp, M_NFSFH); 3262 np = dnp; 3263 } else { 3264 error = nfscl_nget(vnode_mount(vp), vp, 3265 nfhp, cnp, p, &np, NULL); 3266 if (!error) { 3267 newvp = NFSTOV(np); 3268 unlocknewvp = 1; 3269 } 3270 } 3271 nfhp = NULL; 3272 if (newvp != NULLVP) { 3273 error = nfscl_loadattrcache(&newvp, 3274 &nfsva, NULL, NULL, 0, 0); 3275 if (error) { 3276 if (unlocknewvp) 3277 vput(newvp); 3278 else 3279 vrele(newvp); 3280 goto nfsmout; 3281 } 3282 dp->d_type = 3283 vtonfs_dtype(np->n_vattr.na_type); 3284 ndp->ni_vp = newvp; 3285 NFSCNHASH(cnp, HASHINIT); 3286 if (cnp->cn_namelen <= NCHNAMLEN) { 3287 np->n_ctime = 3288 np->n_vattr.na_ctime.tv_sec; 3289 cache_enter(ndp->ni_dvp,ndp->ni_vp,cnp); 3290 } 3291 if (unlocknewvp) 3292 vput(newvp); 3293 else 3294 vrele(newvp); 3295 newvp = NULLVP; 3296 } 3297 } 3298 } else if (nfhp != NULL) { 3299 FREE((caddr_t)nfhp, M_NFSFH); 3300 } 3301 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3302 more_dirs = fxdr_unsigned(int, *tl); 3303 } 3304 /* 3305 * If at end of rpc data, get the eof boolean 3306 */ 3307 if (!more_dirs) { 3308 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3309 eof = fxdr_unsigned(int, *tl); 3310 if (tryformoredirs) 3311 more_dirs = !eof; 3312 if (nd->nd_flag & ND_NFSV4) { 3313 error = nfscl_postop_attr(nd, nap, attrflagp, 3314 stuff); 3315 if (error) 3316 goto nfsmout; 3317 } 3318 } 3319 mbuf_freem(nd->nd_mrep); 3320 nd->nd_mrep = NULL; 3321 } 3322 /* 3323 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 3324 * by increasing d_reclen for the last record. 3325 */ 3326 if (blksiz > 0) { 3327 left = DIRBLKSIZ - blksiz; 3328 dp->d_reclen += left; 3329 uio_iov_base_add(uiop, left); 3330 uio_iov_len_add(uiop, -(left)); 3331 uio_uio_resid_add(uiop, -(left)); 3332 uiop->uio_offset += left; 3333 } 3334 3335 /* 3336 * If returning no data, assume end of file. 3337 * If not bigenough, return not end of file, since you aren't 3338 * returning all the data 3339 * Otherwise, return the eof flag from the server. 3340 */ 3341 if (eofp != NULL) { 3342 if (tresid == uio_uio_resid(uiop)) 3343 *eofp = 1; 3344 else if (!bigenough) 3345 *eofp = 0; 3346 else 3347 *eofp = eof; 3348 } 3349 3350 /* 3351 * Add extra empty records to any remaining DIRBLKSIZ chunks. 3352 */ 3353 while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { 3354 dp = (struct dirent *)uio_iov_base(uiop); 3355 dp->d_type = DT_UNKNOWN; 3356 dp->d_fileno = 0; 3357 dp->d_namlen = 0; 3358 dp->d_name[0] = '\0'; 3359 tl = (u_int32_t *)&dp->d_name[4]; 3360 *tl++ = cookie.lval[0]; 3361 *tl = cookie.lval[1]; 3362 dp->d_reclen = DIRBLKSIZ; 3363 uio_iov_base_add(uiop, DIRBLKSIZ); 3364 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 3365 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 3366 uiop->uio_offset += DIRBLKSIZ; 3367 } 3368 3369 nfsmout: 3370 if (nd->nd_mrep != NULL) 3371 mbuf_freem(nd->nd_mrep); 3372 return (error); 3373 } 3374 #endif /* !APPLE */ 3375 3376 /* 3377 * Nfs commit rpc 3378 */ 3379 APPLESTATIC int 3380 nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, 3381 NFSPROC_T *p, u_char *verfp, struct nfsvattr *nap, int *attrflagp, 3382 void *stuff) 3383 { 3384 u_int32_t *tl; 3385 struct nfsrv_descript nfsd, *nd = &nfsd; 3386 nfsattrbit_t attrbits; 3387 int error; 3388 3389 *attrflagp = 0; 3390 NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); 3391 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3392 txdr_hyper(offset, tl); 3393 tl += 2; 3394 *tl = txdr_unsigned(cnt); 3395 if (nd->nd_flag & ND_NFSV4) { 3396 /* 3397 * And do a Getattr op. 3398 */ 3399 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3400 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3401 NFSGETATTR_ATTRBIT(&attrbits); 3402 (void) nfsrv_putattrbit(nd, &attrbits); 3403 } 3404 error = nfscl_request(nd, vp, p, cred, stuff); 3405 if (error) 3406 return (error); 3407 error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); 3408 if (!error && !nd->nd_repstat) { 3409 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3410 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 3411 if (nd->nd_flag & ND_NFSV4) 3412 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3413 } 3414 nfsmout: 3415 if (!error && nd->nd_repstat) 3416 error = nd->nd_repstat; 3417 mbuf_freem(nd->nd_mrep); 3418 return (error); 3419 } 3420 3421 /* 3422 * NFS byte range lock rpc. 3423 * (Mostly just calls one of the three lower level RPC routines.) 3424 */ 3425 APPLESTATIC int 3426 nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, 3427 int reclaim, struct ucred *cred, NFSPROC_T *p) 3428 { 3429 struct nfscllockowner *lp; 3430 struct nfsclclient *clp; 3431 struct nfsfh *nfhp; 3432 struct nfsrv_descript nfsd, *nd = &nfsd; 3433 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 3434 u_int64_t off, len; 3435 off_t start, end; 3436 u_int32_t clidrev = 0; 3437 int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; 3438 int callcnt, dorpc; 3439 3440 /* 3441 * Convert the flock structure into a start and end and do POSIX 3442 * bounds checking. 3443 */ 3444 switch (fl->l_whence) { 3445 case SEEK_SET: 3446 case SEEK_CUR: 3447 /* 3448 * Caller is responsible for adding any necessary offset 3449 * when SEEK_CUR is used. 3450 */ 3451 start = fl->l_start; 3452 off = fl->l_start; 3453 break; 3454 case SEEK_END: 3455 start = size + fl->l_start; 3456 off = size + fl->l_start; 3457 break; 3458 default: 3459 return (EINVAL); 3460 }; 3461 if (start < 0) 3462 return (EINVAL); 3463 if (fl->l_len != 0) { 3464 end = start + fl->l_len - 1; 3465 if (end < start) 3466 return (EINVAL); 3467 } 3468 3469 len = fl->l_len; 3470 if (len == 0) 3471 len = NFS64BITSSET; 3472 retrycnt = 0; 3473 do { 3474 nd->nd_repstat = 0; 3475 if (op == F_GETLK) { 3476 error = nfscl_getcl(vp, cred, p, &clp); 3477 if (error) 3478 return (error); 3479 error = nfscl_lockt(vp, clp, off, len, fl, p); 3480 if (!error) { 3481 clidrev = clp->nfsc_clientidrev; 3482 error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, 3483 p); 3484 } else if (error == -1) { 3485 error = 0; 3486 } 3487 nfscl_clientrelease(clp); 3488 } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { 3489 /* 3490 * We must loop around for all lockowner cases. 3491 */ 3492 callcnt = 0; 3493 error = nfscl_getcl(vp, cred, p, &clp); 3494 if (error) 3495 return (error); 3496 do { 3497 error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, 3498 clp, &lp, &dorpc); 3499 /* 3500 * If it returns a NULL lp, we're done. 3501 */ 3502 if (lp == NULL) { 3503 if (callcnt == 0) 3504 nfscl_clientrelease(clp); 3505 else 3506 nfscl_releasealllocks(clp, vp, p); 3507 return (error); 3508 } 3509 if (nmp->nm_clp != NULL) 3510 clidrev = nmp->nm_clp->nfsc_clientidrev; 3511 else 3512 clidrev = 0; 3513 /* 3514 * If the server doesn't support Posix lock semantics, 3515 * only allow locks on the entire file, since it won't 3516 * handle overlapping byte ranges. 3517 * There might still be a problem when a lock 3518 * upgrade/downgrade (read<->write) occurs, since the 3519 * server "might" expect an unlock first? 3520 */ 3521 if (dorpc && (lp->nfsl_open->nfso_posixlock || 3522 (off == 0 && len == NFS64BITSSET))) { 3523 /* 3524 * Since the lock records will go away, we must 3525 * wait for grace and delay here. 3526 */ 3527 do { 3528 error = nfsrpc_locku(nd, nmp, lp, off, len, 3529 NFSV4LOCKT_READ, cred, p, 0); 3530 if ((nd->nd_repstat == NFSERR_GRACE || 3531 nd->nd_repstat == NFSERR_DELAY) && 3532 error == 0) 3533 (void) nfs_catnap(PZERO, (int)nd->nd_repstat, 3534 "nfs_advlock"); 3535 } while ((nd->nd_repstat == NFSERR_GRACE || 3536 nd->nd_repstat == NFSERR_DELAY) && error == 0); 3537 } 3538 callcnt++; 3539 } while (error == 0 && nd->nd_repstat == 0); 3540 nfscl_releasealllocks(clp, vp, p); 3541 } else if (op == F_SETLK) { 3542 error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, 3543 NULL, 0, NULL, NULL, &lp, &newone, &donelocally); 3544 if (error || donelocally) { 3545 return (error); 3546 } 3547 if (nmp->nm_clp != NULL) 3548 clidrev = nmp->nm_clp->nfsc_clientidrev; 3549 else 3550 clidrev = 0; 3551 nfhp = VTONFS(vp)->n_fhp; 3552 if (!lp->nfsl_open->nfso_posixlock && 3553 (off != 0 || len != NFS64BITSSET)) { 3554 error = EINVAL; 3555 } else { 3556 error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, 3557 nfhp->nfh_len, lp, newone, reclaim, off, 3558 len, fl->l_type, cred, p, 0); 3559 } 3560 if (!error) 3561 error = nd->nd_repstat; 3562 nfscl_lockrelease(lp, error, newone); 3563 } else { 3564 error = EINVAL; 3565 } 3566 if (!error) 3567 error = nd->nd_repstat; 3568 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 3569 error == NFSERR_STALEDONTRECOVER || 3570 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY) { 3571 (void) nfs_catnap(PZERO, error, "nfs_advlock"); 3572 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 3573 && clidrev != 0) { 3574 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 3575 retrycnt++; 3576 } 3577 } while (error == NFSERR_GRACE || 3578 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || 3579 error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || 3580 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 3581 expireret == 0 && clidrev != 0 && retrycnt < 4)); 3582 if (error && retrycnt >= 4) 3583 error = EIO; 3584 return (error); 3585 } 3586 3587 /* 3588 * The lower level routine for the LockT case. 3589 */ 3590 APPLESTATIC int 3591 nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, 3592 struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, 3593 struct ucred *cred, NFSPROC_T *p) 3594 { 3595 u_int32_t *tl; 3596 int error, type, size; 3597 u_int8_t own[NFSV4CL_LOCKNAMELEN]; 3598 3599 NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); 3600 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3601 if (fl->l_type == F_RDLCK) 3602 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3603 else 3604 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3605 txdr_hyper(off, tl); 3606 tl += 2; 3607 txdr_hyper(len, tl); 3608 tl += 2; 3609 *tl++ = clp->nfsc_clientid.lval[0]; 3610 *tl = clp->nfsc_clientid.lval[1]; 3611 nfscl_filllockowner(p, own); 3612 (void) nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN); 3613 error = nfscl_request(nd, vp, p, cred, NULL); 3614 if (error) 3615 return (error); 3616 if (nd->nd_repstat == 0) { 3617 fl->l_type = F_UNLCK; 3618 } else if (nd->nd_repstat == NFSERR_DENIED) { 3619 nd->nd_repstat = 0; 3620 fl->l_whence = SEEK_SET; 3621 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3622 fl->l_start = fxdr_hyper(tl); 3623 tl += 2; 3624 len = fxdr_hyper(tl); 3625 tl += 2; 3626 if (len == NFS64BITSSET) 3627 fl->l_len = 0; 3628 else 3629 fl->l_len = len; 3630 type = fxdr_unsigned(int, *tl++); 3631 if (type == NFSV4LOCKT_WRITE) 3632 fl->l_type = F_WRLCK; 3633 else 3634 fl->l_type = F_RDLCK; 3635 /* 3636 * XXX For now, I have no idea what to do with the 3637 * conflicting lock_owner, so I'll just set the pid == 0 3638 * and skip over the lock_owner. 3639 */ 3640 fl->l_pid = (pid_t)0; 3641 tl += 2; 3642 size = fxdr_unsigned(int, *tl); 3643 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3644 error = EBADRPC; 3645 if (!error) 3646 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3647 } else if (nd->nd_repstat == NFSERR_STALECLIENTID) 3648 nfscl_initiate_recovery(clp); 3649 nfsmout: 3650 mbuf_freem(nd->nd_mrep); 3651 return (error); 3652 } 3653 3654 /* 3655 * Lower level function that performs the LockU RPC. 3656 */ 3657 static int 3658 nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, 3659 struct nfscllockowner *lp, u_int64_t off, u_int64_t len, 3660 u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) 3661 { 3662 u_int32_t *tl; 3663 int error; 3664 3665 nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, 3666 lp->nfsl_open->nfso_fhlen, NULL); 3667 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3668 *tl++ = txdr_unsigned(type); 3669 *tl = txdr_unsigned(lp->nfsl_seqid); 3670 if (nfstest_outofseq && 3671 (arc4random() % nfstest_outofseq) == 0) 3672 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3673 tl++; 3674 *tl++ = lp->nfsl_stateid.seqid; 3675 *tl++ = lp->nfsl_stateid.other[0]; 3676 *tl++ = lp->nfsl_stateid.other[1]; 3677 *tl++ = lp->nfsl_stateid.other[2]; 3678 txdr_hyper(off, tl); 3679 tl += 2; 3680 txdr_hyper(len, tl); 3681 if (syscred) 3682 nd->nd_flag |= ND_USEGSSNAME; 3683 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3684 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3685 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3686 if (error) 3687 return (error); 3688 if (nd->nd_repstat == 0) { 3689 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3690 lp->nfsl_stateid.seqid = *tl++; 3691 lp->nfsl_stateid.other[0] = *tl++; 3692 lp->nfsl_stateid.other[1] = *tl++; 3693 lp->nfsl_stateid.other[2] = *tl; 3694 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3695 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3696 nfsmout: 3697 mbuf_freem(nd->nd_mrep); 3698 return (error); 3699 } 3700 3701 /* 3702 * The actual Lock RPC. 3703 */ 3704 APPLESTATIC int 3705 nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, 3706 u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, 3707 int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, 3708 NFSPROC_T *p, int syscred) 3709 { 3710 u_int32_t *tl; 3711 int error, size; 3712 3713 nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL); 3714 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3715 if (type == F_RDLCK) 3716 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3717 else 3718 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3719 *tl++ = txdr_unsigned(reclaim); 3720 txdr_hyper(off, tl); 3721 tl += 2; 3722 txdr_hyper(len, tl); 3723 tl += 2; 3724 if (newone) { 3725 *tl = newnfs_true; 3726 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3727 2 * NFSX_UNSIGNED + NFSX_HYPER); 3728 *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); 3729 *tl++ = lp->nfsl_open->nfso_stateid.seqid; 3730 *tl++ = lp->nfsl_open->nfso_stateid.other[0]; 3731 *tl++ = lp->nfsl_open->nfso_stateid.other[1]; 3732 *tl++ = lp->nfsl_open->nfso_stateid.other[2]; 3733 *tl++ = txdr_unsigned(lp->nfsl_seqid); 3734 *tl++ = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 3735 *tl = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 3736 (void) nfsm_strtom(nd, lp->nfsl_owner, NFSV4CL_LOCKNAMELEN); 3737 } else { 3738 *tl = newnfs_false; 3739 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3740 *tl++ = lp->nfsl_stateid.seqid; 3741 *tl++ = lp->nfsl_stateid.other[0]; 3742 *tl++ = lp->nfsl_stateid.other[1]; 3743 *tl++ = lp->nfsl_stateid.other[2]; 3744 *tl = txdr_unsigned(lp->nfsl_seqid); 3745 if (nfstest_outofseq && 3746 (arc4random() % nfstest_outofseq) == 0) 3747 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3748 } 3749 if (syscred) 3750 nd->nd_flag |= ND_USEGSSNAME; 3751 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 3752 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3753 if (error) 3754 return (error); 3755 if (newone) 3756 NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); 3757 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3758 if (nd->nd_repstat == 0) { 3759 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3760 lp->nfsl_stateid.seqid = *tl++; 3761 lp->nfsl_stateid.other[0] = *tl++; 3762 lp->nfsl_stateid.other[1] = *tl++; 3763 lp->nfsl_stateid.other[2] = *tl; 3764 } else if (nd->nd_repstat == NFSERR_DENIED) { 3765 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3766 size = fxdr_unsigned(int, *(tl + 7)); 3767 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3768 error = EBADRPC; 3769 if (!error) 3770 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3771 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3772 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3773 nfsmout: 3774 mbuf_freem(nd->nd_mrep); 3775 return (error); 3776 } 3777 3778 /* 3779 * nfs statfs rpc 3780 * (always called with the vp for the mount point) 3781 */ 3782 APPLESTATIC int 3783 nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, 3784 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3785 void *stuff) 3786 { 3787 u_int32_t *tl = NULL; 3788 struct nfsrv_descript nfsd, *nd = &nfsd; 3789 struct nfsmount *nmp; 3790 nfsattrbit_t attrbits; 3791 int error; 3792 3793 *attrflagp = 0; 3794 nmp = VFSTONFS(vnode_mount(vp)); 3795 if (NFSHASNFSV4(nmp)) { 3796 /* 3797 * For V4, you actually do a getattr. 3798 */ 3799 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3800 NFSSTATFS_GETATTRBIT(&attrbits); 3801 (void) nfsrv_putattrbit(nd, &attrbits); 3802 nd->nd_flag |= ND_USEGSSNAME; 3803 error = nfscl_request(nd, vp, p, cred, stuff); 3804 if (error) 3805 return (error); 3806 if (nd->nd_repstat == 0) { 3807 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3808 NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, 3809 cred); 3810 if (!error) { 3811 nmp->nm_fsid[0] = nap->na_filesid[0]; 3812 nmp->nm_fsid[1] = nap->na_filesid[1]; 3813 NFSSETHASSETFSID(nmp); 3814 *attrflagp = 1; 3815 } 3816 } else { 3817 error = nd->nd_repstat; 3818 } 3819 if (error) 3820 goto nfsmout; 3821 } else { 3822 NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); 3823 error = nfscl_request(nd, vp, p, cred, stuff); 3824 if (error) 3825 return (error); 3826 if (nd->nd_flag & ND_NFSV3) { 3827 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3828 if (error) 3829 goto nfsmout; 3830 } 3831 if (nd->nd_repstat) { 3832 error = nd->nd_repstat; 3833 goto nfsmout; 3834 } 3835 NFSM_DISSECT(tl, u_int32_t *, 3836 NFSX_STATFS(nd->nd_flag & ND_NFSV3)); 3837 } 3838 if (NFSHASNFSV3(nmp)) { 3839 sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; 3840 sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; 3841 sbp->sf_abytes = fxdr_hyper(tl); tl += 2; 3842 sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; 3843 sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; 3844 sbp->sf_afiles = fxdr_hyper(tl); tl += 2; 3845 sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); 3846 } else if (NFSHASNFSV4(nmp) == 0) { 3847 sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); 3848 sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); 3849 sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); 3850 sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); 3851 sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); 3852 } 3853 nfsmout: 3854 mbuf_freem(nd->nd_mrep); 3855 return (error); 3856 } 3857 3858 /* 3859 * nfs pathconf rpc 3860 */ 3861 APPLESTATIC int 3862 nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, 3863 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3864 void *stuff) 3865 { 3866 struct nfsrv_descript nfsd, *nd = &nfsd; 3867 struct nfsmount *nmp; 3868 u_int32_t *tl; 3869 nfsattrbit_t attrbits; 3870 int error; 3871 3872 *attrflagp = 0; 3873 nmp = VFSTONFS(vnode_mount(vp)); 3874 if (NFSHASNFSV4(nmp)) { 3875 /* 3876 * For V4, you actually do a getattr. 3877 */ 3878 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3879 NFSPATHCONF_GETATTRBIT(&attrbits); 3880 (void) nfsrv_putattrbit(nd, &attrbits); 3881 nd->nd_flag |= ND_USEGSSNAME; 3882 error = nfscl_request(nd, vp, p, cred, stuff); 3883 if (error) 3884 return (error); 3885 if (nd->nd_repstat == 0) { 3886 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3887 pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, 3888 cred); 3889 if (!error) 3890 *attrflagp = 1; 3891 } else { 3892 error = nd->nd_repstat; 3893 } 3894 } else { 3895 NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp); 3896 error = nfscl_request(nd, vp, p, cred, stuff); 3897 if (error) 3898 return (error); 3899 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3900 if (nd->nd_repstat && !error) 3901 error = nd->nd_repstat; 3902 if (!error) { 3903 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF); 3904 pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); 3905 pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); 3906 pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); 3907 pc->pc_chownrestricted = 3908 fxdr_unsigned(u_int32_t, *tl++); 3909 pc->pc_caseinsensitive = 3910 fxdr_unsigned(u_int32_t, *tl++); 3911 pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); 3912 } 3913 } 3914 nfsmout: 3915 mbuf_freem(nd->nd_mrep); 3916 return (error); 3917 } 3918 3919 /* 3920 * nfs version 3 fsinfo rpc call 3921 */ 3922 APPLESTATIC int 3923 nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, 3924 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 3925 { 3926 u_int32_t *tl; 3927 struct nfsrv_descript nfsd, *nd = &nfsd; 3928 int error; 3929 3930 *attrflagp = 0; 3931 NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); 3932 error = nfscl_request(nd, vp, p, cred, stuff); 3933 if (error) 3934 return (error); 3935 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3936 if (nd->nd_repstat && !error) 3937 error = nd->nd_repstat; 3938 if (!error) { 3939 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); 3940 fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); 3941 fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); 3942 fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); 3943 fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); 3944 fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); 3945 fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); 3946 fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); 3947 fsp->fs_maxfilesize = fxdr_hyper(tl); 3948 tl += 2; 3949 fxdr_nfsv3time(tl, &fsp->fs_timedelta); 3950 tl += 2; 3951 fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); 3952 } 3953 nfsmout: 3954 mbuf_freem(nd->nd_mrep); 3955 return (error); 3956 } 3957 3958 /* 3959 * This function performs the Renew RPC. 3960 */ 3961 APPLESTATIC int 3962 nfsrpc_renew(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p) 3963 { 3964 u_int32_t *tl; 3965 struct nfsrv_descript nfsd; 3966 struct nfsrv_descript *nd = &nfsd; 3967 struct nfsmount *nmp; 3968 int error; 3969 3970 nmp = clp->nfsc_nmp; 3971 if (nmp == NULL) 3972 return (0); 3973 nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL); 3974 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3975 *tl++ = clp->nfsc_clientid.lval[0]; 3976 *tl = clp->nfsc_clientid.lval[1]; 3977 nd->nd_flag |= ND_USEGSSNAME; 3978 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3979 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3980 if (error) 3981 return (error); 3982 error = nd->nd_repstat; 3983 mbuf_freem(nd->nd_mrep); 3984 return (error); 3985 } 3986 3987 /* 3988 * This function performs the Releaselockowner RPC. 3989 */ 3990 APPLESTATIC int 3991 nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, 3992 struct ucred *cred, NFSPROC_T *p) 3993 { 3994 struct nfsrv_descript nfsd, *nd = &nfsd; 3995 u_int32_t *tl; 3996 int error; 3997 3998 nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL); 3999 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4000 *tl++ = nmp->nm_clp->nfsc_clientid.lval[0]; 4001 *tl = nmp->nm_clp->nfsc_clientid.lval[1]; 4002 (void) nfsm_strtom(nd, lp->nfsl_owner, NFSV4CL_LOCKNAMELEN); 4003 nd->nd_flag |= ND_USEGSSNAME; 4004 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4005 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4006 if (error) 4007 return (error); 4008 error = nd->nd_repstat; 4009 mbuf_freem(nd->nd_mrep); 4010 return (error); 4011 } 4012 4013 /* 4014 * This function performs the Compound to get the mount pt FH. 4015 */ 4016 APPLESTATIC int 4017 nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, 4018 NFSPROC_T *p) 4019 { 4020 u_int32_t *tl; 4021 struct nfsrv_descript nfsd; 4022 struct nfsrv_descript *nd = &nfsd; 4023 u_char *cp, *cp2; 4024 int error, cnt, len, setnil; 4025 u_int32_t *opcntp; 4026 4027 nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp); 4028 cp = dirpath; 4029 cnt = 0; 4030 do { 4031 setnil = 0; 4032 while (*cp == '/') 4033 cp++; 4034 cp2 = cp; 4035 while (*cp2 != '\0' && *cp2 != '/') 4036 cp2++; 4037 if (*cp2 == '/') { 4038 setnil = 1; 4039 *cp2 = '\0'; 4040 } 4041 if (cp2 != cp) { 4042 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4043 *tl = txdr_unsigned(NFSV4OP_LOOKUP); 4044 nfsm_strtom(nd, cp, strlen(cp)); 4045 cnt++; 4046 } 4047 if (setnil) 4048 *cp2++ = '/'; 4049 cp = cp2; 4050 } while (*cp != '\0'); 4051 *opcntp = txdr_unsigned(2 + cnt); 4052 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4053 *tl = txdr_unsigned(NFSV4OP_GETFH); 4054 nd->nd_flag |= ND_USEGSSNAME; 4055 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4056 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4057 if (error) 4058 return (error); 4059 if (nd->nd_repstat == 0) { 4060 NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); 4061 tl += (2 + 2 * cnt); 4062 if ((len = fxdr_unsigned(int, *tl)) <= 0 || 4063 len > NFSX_FHMAX) { 4064 nd->nd_repstat = NFSERR_BADXDR; 4065 } else { 4066 nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); 4067 if (nd->nd_repstat == 0) 4068 nmp->nm_fhsize = len; 4069 } 4070 } 4071 error = nd->nd_repstat; 4072 nfsmout: 4073 mbuf_freem(nd->nd_mrep); 4074 return (error); 4075 } 4076 4077 /* 4078 * This function performs the Delegreturn RPC. 4079 */ 4080 APPLESTATIC int 4081 nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, 4082 struct nfsmount *nmp, NFSPROC_T *p, int syscred) 4083 { 4084 u_int32_t *tl; 4085 struct nfsrv_descript nfsd; 4086 struct nfsrv_descript *nd = &nfsd; 4087 int error; 4088 4089 nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, 4090 dp->nfsdl_fhlen, NULL); 4091 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 4092 *tl++ = dp->nfsdl_stateid.seqid; 4093 *tl++ = dp->nfsdl_stateid.other[0]; 4094 *tl++ = dp->nfsdl_stateid.other[1]; 4095 *tl = dp->nfsdl_stateid.other[2]; 4096 if (syscred) 4097 nd->nd_flag |= ND_USEGSSNAME; 4098 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4099 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4100 if (error) 4101 return (error); 4102 error = nd->nd_repstat; 4103 mbuf_freem(nd->nd_mrep); 4104 return (error); 4105 } 4106 4107 /* 4108 * nfs getacl call. 4109 */ 4110 APPLESTATIC int 4111 nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4112 struct acl *aclp, void *stuff) 4113 { 4114 struct nfsrv_descript nfsd, *nd = &nfsd; 4115 int error; 4116 nfsattrbit_t attrbits; 4117 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4118 4119 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4120 return (EOPNOTSUPP); 4121 NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); 4122 NFSZERO_ATTRBIT(&attrbits); 4123 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4124 (void) nfsrv_putattrbit(nd, &attrbits); 4125 error = nfscl_request(nd, vp, p, cred, stuff); 4126 if (error) 4127 return (error); 4128 if (!nd->nd_repstat) 4129 error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, 4130 NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); 4131 else 4132 error = nd->nd_repstat; 4133 mbuf_freem(nd->nd_mrep); 4134 return (error); 4135 } 4136 4137 /* 4138 * nfs setacl call. 4139 */ 4140 APPLESTATIC int 4141 nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4142 struct acl *aclp, void *stuff) 4143 { 4144 int error; 4145 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4146 4147 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4148 return (EOPNOTSUPP); 4149 error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); 4150 return (error); 4151 } 4152 4153 /* 4154 * nfs setacl call. 4155 */ 4156 static int 4157 nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4158 struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) 4159 { 4160 struct nfsrv_descript nfsd, *nd = &nfsd; 4161 int error; 4162 nfsattrbit_t attrbits; 4163 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4164 4165 if (!NFSHASNFSV4(nmp)) 4166 return (EOPNOTSUPP); 4167 NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); 4168 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 4169 NFSZERO_ATTRBIT(&attrbits); 4170 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4171 (void) nfsv4_fillattr(nd, vp, aclp, NULL, NULL, 0, &attrbits, 4172 NULL, NULL, 0, 0); 4173 error = nfscl_request(nd, vp, p, cred, stuff); 4174 if (error) 4175 return (error); 4176 /* Don't care about the pre/postop attributes */ 4177 mbuf_freem(nd->nd_mrep); 4178 return (nd->nd_repstat); 4179 } 4180