nfs_clrpcops.c revision 222719
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: head/sys/fs/nfsclient/nfs_clrpcops.c 222719 2011-06-05 18:17:37Z rmacklem $"); 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 */ 51extern int nfs_numnfscbd; 52extern struct timeval nfsboottime; 53extern u_int32_t newnfs_false, newnfs_true; 54extern nfstype nfsv34_type[9]; 55extern int nfsrv_useacl; 56extern char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 57NFSCLSTATEMUTEX; 58int nfstest_outofseq = 0; 59int nfscl_assumeposixlocks = 1; 60int nfscl_enablecallb = 0; 61short nfsv4_cbport = NFSV4_CBPORT; 62int nfstest_openallsetattr = 0; 63#endif /* !APPLEKEXT */ 64 65#define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1)) 66 67static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *, 68 struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *); 69static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *, 70 nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *); 71static int nfsrpc_writerpc(vnode_t , struct uio *, int *, int *, 72 struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, 73 void *); 74static 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 *); 77static 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 *); 81static 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); 84static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, 85 struct acl *, nfsv4stateid_t *, void *); 86 87/* 88 * nfs null call from vfs. 89 */ 90APPLESTATIC int 91nfsrpc_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 */ 109APPLESTATIC int 110nfsrpc_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 */ 152APPLESTATIC int 153nfsrpc_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; 205nfsmout: 206 mbuf_freem(nd->nd_mrep); 207 return (error); 208} 209 210/* 211 * nfs open rpc 212 */ 213APPLESTATIC int 214nfsrpc_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; 239namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; 240bcopy(NFS4NODENAME(np->n_v4), name, namel); 241name[namel] = '\0'; 242printf("rpcopen p=0x%x name=%s",p->p_pid,name); 243if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); 244else 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 /* 272 * Invalidate the attribute cache, so that 273 * attributes that pre-date the issue of a 274 * delegation are not cached, since the 275 * cached attributes will remain valid while 276 * the delegation is held. 277 */ 278 NFSINVALATTRCACHE(np); 279 NFSUNLOCKNODE(np); 280#endif 281 (void) nfscl_deleg(nmp->nm_mountp, 282 op->nfso_own->nfsow_clp, 283 nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); 284 } 285 } else { 286 error = EIO; 287 } 288 newnfs_copyincred(cred, &op->nfso_cred); 289 } else if (ret == NFSCLOPEN_SETCRED) 290 /* 291 * This is a new local open on a delegation. It needs 292 * to have credentials so that an open can be done 293 * against the server during recovery. 294 */ 295 newnfs_copyincred(cred, &op->nfso_cred); 296 297 /* 298 * nfso_opencnt is the count of how many VOP_OPEN()s have 299 * been done on this Open successfully and a VOP_CLOSE() 300 * is expected for each of these. 301 * If error is non-zero, don't increment it, since the Open 302 * hasn't succeeded yet. 303 */ 304 if (!error) 305 op->nfso_opencnt++; 306 nfscl_openrelease(op, error, newone); 307 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 308 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 309 (void) nfs_catnap(PZERO, error, "nfs_open"); 310 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 311 && clidrev != 0) { 312 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 313 retrycnt++; 314 } 315 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 316 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 317 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 318 expireret == 0 && clidrev != 0 && retrycnt < 4)); 319 if (error && retrycnt >= 4) 320 error = EIO; 321 return (error); 322} 323 324/* 325 * the actual open rpc 326 */ 327APPLESTATIC int 328nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, 329 u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, 330 u_int8_t *name, int namelen, struct nfscldeleg **dpp, 331 int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, 332 int syscred, int recursed) 333{ 334 u_int32_t *tl; 335 struct nfsrv_descript nfsd, *nd = &nfsd; 336 struct nfscldeleg *dp, *ndp = NULL; 337 struct nfsvattr nfsva; 338 u_int32_t rflags, deleg; 339 nfsattrbit_t attrbits; 340 int error, ret, acesize, limitby; 341 342 dp = *dpp; 343 *dpp = NULL; 344 nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL); 345 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 346 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 347 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 348 *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 349 *tl++ = op->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 350 *tl = op->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 351 (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); 352 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 353 *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); 354 if (reclaim) { 355 *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); 356 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 357 *tl = txdr_unsigned(delegtype); 358 } else { 359 if (dp != NULL) { 360 *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); 361 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 362 *tl++ = dp->nfsdl_stateid.seqid; 363 *tl++ = dp->nfsdl_stateid.other[0]; 364 *tl++ = dp->nfsdl_stateid.other[1]; 365 *tl = dp->nfsdl_stateid.other[2]; 366 } else { 367 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 368 } 369 (void) nfsm_strtom(nd, name, namelen); 370 } 371 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 372 *tl = txdr_unsigned(NFSV4OP_GETATTR); 373 NFSZERO_ATTRBIT(&attrbits); 374 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 375 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); 376 (void) nfsrv_putattrbit(nd, &attrbits); 377 if (syscred) 378 nd->nd_flag |= ND_USEGSSNAME; 379 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 380 NFS_PROG, NFS_VER4, NULL, 1, NULL); 381 if (error) 382 return (error); 383 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 384 if (!nd->nd_repstat) { 385 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 386 6 * NFSX_UNSIGNED); 387 op->nfso_stateid.seqid = *tl++; 388 op->nfso_stateid.other[0] = *tl++; 389 op->nfso_stateid.other[1] = *tl++; 390 op->nfso_stateid.other[2] = *tl; 391 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 392 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 393 if (error) 394 goto nfsmout; 395 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 396 deleg = fxdr_unsigned(u_int32_t, *tl); 397 if (deleg == NFSV4OPEN_DELEGATEREAD || 398 deleg == NFSV4OPEN_DELEGATEWRITE) { 399 if (!(op->nfso_own->nfsow_clp->nfsc_flags & 400 NFSCLFLAGS_FIRSTDELEG)) 401 op->nfso_own->nfsow_clp->nfsc_flags |= 402 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 403 MALLOC(ndp, struct nfscldeleg *, 404 sizeof (struct nfscldeleg) + newfhlen, 405 M_NFSCLDELEG, M_WAITOK); 406 LIST_INIT(&ndp->nfsdl_owner); 407 LIST_INIT(&ndp->nfsdl_lock); 408 ndp->nfsdl_clp = op->nfso_own->nfsow_clp; 409 ndp->nfsdl_fhlen = newfhlen; 410 NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); 411 newnfs_copyincred(cred, &ndp->nfsdl_cred); 412 nfscl_lockinit(&ndp->nfsdl_rwlock); 413 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 414 NFSX_UNSIGNED); 415 ndp->nfsdl_stateid.seqid = *tl++; 416 ndp->nfsdl_stateid.other[0] = *tl++; 417 ndp->nfsdl_stateid.other[1] = *tl++; 418 ndp->nfsdl_stateid.other[2] = *tl++; 419 ret = fxdr_unsigned(int, *tl); 420 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 421 ndp->nfsdl_flags = NFSCLDL_WRITE; 422 /* 423 * Indicates how much the file can grow. 424 */ 425 NFSM_DISSECT(tl, u_int32_t *, 426 3 * NFSX_UNSIGNED); 427 limitby = fxdr_unsigned(int, *tl++); 428 switch (limitby) { 429 case NFSV4OPEN_LIMITSIZE: 430 ndp->nfsdl_sizelimit = fxdr_hyper(tl); 431 break; 432 case NFSV4OPEN_LIMITBLOCKS: 433 ndp->nfsdl_sizelimit = 434 fxdr_unsigned(u_int64_t, *tl++); 435 ndp->nfsdl_sizelimit *= 436 fxdr_unsigned(u_int64_t, *tl); 437 break; 438 default: 439 error = NFSERR_BADXDR; 440 goto nfsmout; 441 }; 442 } else { 443 ndp->nfsdl_flags = NFSCLDL_READ; 444 } 445 if (ret) 446 ndp->nfsdl_flags |= NFSCLDL_RECALL; 447 error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, 448 &acesize, p); 449 if (error) 450 goto nfsmout; 451 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 452 error = NFSERR_BADXDR; 453 goto nfsmout; 454 } 455 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 456 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 457 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 458 NULL, NULL, NULL, p, cred); 459 if (error) 460 goto nfsmout; 461 if (ndp != NULL) { 462 ndp->nfsdl_change = nfsva.na_filerev; 463 ndp->nfsdl_modtime = nfsva.na_mtime; 464 ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; 465 } 466 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { 467 do { 468 ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, 469 cred, p); 470 if (ret == NFSERR_DELAY) 471 (void) nfs_catnap(PZERO, ret, "nfs_open"); 472 } while (ret == NFSERR_DELAY); 473 error = ret; 474 } 475 if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || 476 nfscl_assumeposixlocks) 477 op->nfso_posixlock = 1; 478 else 479 op->nfso_posixlock = 0; 480 481 /* 482 * If the server is handing out delegations, but we didn't 483 * get one because an OpenConfirm was required, try the 484 * Open again, to get a delegation. This is a harmless no-op, 485 * from a server's point of view. 486 */ 487 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && 488 (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) 489 && !error && dp == NULL && ndp == NULL && !recursed) { 490 do { 491 ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, 492 newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, 493 cred, p, syscred, 1); 494 if (ret == NFSERR_DELAY) 495 (void) nfs_catnap(PZERO, ret, "nfs_open2"); 496 } while (ret == NFSERR_DELAY); 497 if (ret) { 498 if (ndp != NULL) 499 FREE((caddr_t)ndp, M_NFSCLDELEG); 500 if (ret == NFSERR_STALECLIENTID || 501 ret == NFSERR_STALEDONTRECOVER) 502 error = ret; 503 } 504 } 505 } 506 if (nd->nd_repstat != 0 && error == 0) 507 error = nd->nd_repstat; 508 if (error == NFSERR_STALECLIENTID) 509 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 510nfsmout: 511 if (!error) 512 *dpp = ndp; 513 else if (ndp != NULL) 514 FREE((caddr_t)ndp, M_NFSCLDELEG); 515 mbuf_freem(nd->nd_mrep); 516 return (error); 517} 518 519/* 520 * open downgrade rpc 521 */ 522APPLESTATIC int 523nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, 524 struct ucred *cred, NFSPROC_T *p) 525{ 526 u_int32_t *tl; 527 struct nfsrv_descript nfsd, *nd = &nfsd; 528 int error; 529 530 NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); 531 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 532 *tl++ = op->nfso_stateid.seqid; 533 *tl++ = op->nfso_stateid.other[0]; 534 *tl++ = op->nfso_stateid.other[1]; 535 *tl++ = op->nfso_stateid.other[2]; 536 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 537 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 538 *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 539 error = nfscl_request(nd, vp, p, cred, NULL); 540 if (error) 541 return (error); 542 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 543 if (!nd->nd_repstat) { 544 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 545 op->nfso_stateid.seqid = *tl++; 546 op->nfso_stateid.other[0] = *tl++; 547 op->nfso_stateid.other[1] = *tl++; 548 op->nfso_stateid.other[2] = *tl; 549 } 550 if (nd->nd_repstat && error == 0) 551 error = nd->nd_repstat; 552 if (error == NFSERR_STALESTATEID) 553 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 554nfsmout: 555 mbuf_freem(nd->nd_mrep); 556 return (error); 557} 558 559/* 560 * V4 Close operation. 561 */ 562APPLESTATIC int 563nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) 564{ 565 struct nfsclclient *clp; 566 int error; 567 568 if (vnode_vtype(vp) != VREG) 569 return (0); 570 if (doclose) 571 error = nfscl_doclose(vp, &clp, p); 572 else 573 error = nfscl_getclose(vp, &clp); 574 if (error) 575 return (error); 576 577 nfscl_clientrelease(clp); 578 return (0); 579} 580 581/* 582 * Close the open. 583 */ 584APPLESTATIC void 585nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p) 586{ 587 struct nfsrv_descript nfsd, *nd = &nfsd; 588 struct nfscllockowner *lp; 589 struct nfscllock *lop, *nlop; 590 struct ucred *tcred; 591 u_int64_t off = 0, len = 0; 592 u_int32_t type = NFSV4LOCKT_READ; 593 int error, do_unlock, trycnt; 594 595 tcred = newnfs_getcred(); 596 newnfs_copycred(&op->nfso_cred, tcred); 597 /* 598 * (Theoretically this could be done in the same 599 * compound as the close, but having multiple 600 * sequenced Ops in the same compound might be 601 * too scary for some servers.) 602 */ 603 if (op->nfso_posixlock) { 604 off = 0; 605 len = NFS64BITSSET; 606 type = NFSV4LOCKT_READ; 607 } 608 609 /* 610 * Since this function is only called from VOP_INACTIVE(), no 611 * other thread will be manipulating this Open. As such, the 612 * lock lists are not being changed by other threads, so it should 613 * be safe to do this without locking. 614 */ 615 LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { 616 do_unlock = 1; 617 LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) { 618 if (op->nfso_posixlock == 0) { 619 off = lop->nfslo_first; 620 len = lop->nfslo_end - lop->nfslo_first; 621 if (lop->nfslo_type == F_WRLCK) 622 type = NFSV4LOCKT_WRITE; 623 else 624 type = NFSV4LOCKT_READ; 625 } 626 if (do_unlock) { 627 trycnt = 0; 628 do { 629 error = nfsrpc_locku(nd, nmp, lp, off, 630 len, type, tcred, p, 0); 631 if ((nd->nd_repstat == NFSERR_GRACE || 632 nd->nd_repstat == NFSERR_DELAY) && 633 error == 0) 634 (void) nfs_catnap(PZERO, 635 (int)nd->nd_repstat, 636 "nfs_close"); 637 } while ((nd->nd_repstat == NFSERR_GRACE || 638 nd->nd_repstat == NFSERR_DELAY) && 639 error == 0 && trycnt++ < 5); 640 if (op->nfso_posixlock) 641 do_unlock = 0; 642 } 643 nfscl_freelock(lop, 0); 644 } 645 } 646 647 /* 648 * There could be other Opens for different files on the same 649 * OpenOwner, so locking is required. 650 */ 651 NFSLOCKCLSTATE(); 652 nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); 653 NFSUNLOCKCLSTATE(); 654 do { 655 error = nfscl_tryclose(op, tcred, nmp, p); 656 if (error == NFSERR_GRACE) 657 (void) nfs_catnap(PZERO, error, "nfs_close"); 658 } while (error == NFSERR_GRACE); 659 NFSLOCKCLSTATE(); 660 nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); 661 662 /* 663 * Move the lockowner to nfsc_defunctlockowner, 664 * so the Renew thread will do the ReleaseLockOwner 665 * Op on it later. There might still be other 666 * opens using the same lockowner name. 667 */ 668 lp = LIST_FIRST(&op->nfso_lock); 669 if (lp != NULL) { 670 while (LIST_NEXT(lp, nfsl_list) != NULL) 671 lp = LIST_NEXT(lp, nfsl_list); 672 LIST_PREPEND(&nmp->nm_clp->nfsc_defunctlockowner, 673 &op->nfso_lock, lp, nfsl_list); 674 LIST_INIT(&op->nfso_lock); 675 } 676 nfscl_freeopen(op, 0); 677 NFSUNLOCKCLSTATE(); 678 NFSFREECRED(tcred); 679} 680 681/* 682 * The actual Close RPC. 683 */ 684APPLESTATIC int 685nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, 686 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, 687 int syscred) 688{ 689 u_int32_t *tl; 690 int error; 691 692 nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, 693 op->nfso_fhlen, NULL); 694 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 695 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 696 *tl++ = op->nfso_stateid.seqid; 697 *tl++ = op->nfso_stateid.other[0]; 698 *tl++ = op->nfso_stateid.other[1]; 699 *tl = op->nfso_stateid.other[2]; 700 if (syscred) 701 nd->nd_flag |= ND_USEGSSNAME; 702 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 703 NFS_PROG, NFS_VER4, NULL, 1, NULL); 704 if (error) 705 return (error); 706 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 707 if (nd->nd_repstat == 0) 708 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 709 error = nd->nd_repstat; 710 if (error == NFSERR_STALESTATEID) 711 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 712nfsmout: 713 mbuf_freem(nd->nd_mrep); 714 return (error); 715} 716 717/* 718 * V4 Open Confirm RPC. 719 */ 720APPLESTATIC int 721nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, 722 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) 723{ 724 u_int32_t *tl; 725 struct nfsrv_descript nfsd, *nd = &nfsd; 726 int error; 727 728 nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, VFSTONFS(vnode_mount(vp)), 729 nfhp, fhlen, NULL); 730 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 731 *tl++ = op->nfso_stateid.seqid; 732 *tl++ = op->nfso_stateid.other[0]; 733 *tl++ = op->nfso_stateid.other[1]; 734 *tl++ = op->nfso_stateid.other[2]; 735 *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); 736 error = nfscl_request(nd, vp, p, cred, NULL); 737 if (error) 738 return (error); 739 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 740 if (!nd->nd_repstat) { 741 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 742 op->nfso_stateid.seqid = *tl++; 743 op->nfso_stateid.other[0] = *tl++; 744 op->nfso_stateid.other[1] = *tl++; 745 op->nfso_stateid.other[2] = *tl; 746 } 747 error = nd->nd_repstat; 748 if (error == NFSERR_STALESTATEID) 749 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 750nfsmout: 751 mbuf_freem(nd->nd_mrep); 752 return (error); 753} 754 755/* 756 * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() 757 * when a mount has just occurred and when the server replies NFSERR_EXPIRED. 758 */ 759APPLESTATIC int 760nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, 761 struct ucred *cred, NFSPROC_T *p) 762{ 763 u_int32_t *tl; 764 struct nfsrv_descript nfsd; 765 struct nfsrv_descript *nd = &nfsd; 766 nfsattrbit_t attrbits; 767 u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; 768 u_short port; 769 int error, isinet6 = 0, callblen; 770 nfsquad_t confirm; 771 u_int32_t lease; 772 static u_int32_t rev = 0; 773 774 if (nfsboottime.tv_sec == 0) 775 NFSSETBOOTTIME(nfsboottime); 776 nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL); 777 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 778 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 779 *tl = txdr_unsigned(rev++); 780 (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); 781 782 /* 783 * set up the callback address 784 */ 785 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 786 *tl = txdr_unsigned(NFS_CALLBCKPROG); 787 callblen = strlen(nfsv4_callbackaddr); 788 if (callblen == 0) 789 cp = nfscl_getmyip(nmp, &isinet6); 790 if (nfscl_enablecallb && nfs_numnfscbd > 0 && 791 (callblen > 0 || cp != NULL)) { 792 port = htons(nfsv4_cbport); 793 cp2 = (u_int8_t *)&port; 794#ifdef INET6 795 if ((callblen > 0 && 796 strchr(nfsv4_callbackaddr, ':')) || isinet6) { 797 char ip6buf[INET6_ADDRSTRLEN], *ip6add; 798 799 (void) nfsm_strtom(nd, "tcp6", 4); 800 if (callblen == 0) { 801 ip6_sprintf(ip6buf, (struct in6_addr *)cp); 802 ip6add = ip6buf; 803 } else { 804 ip6add = nfsv4_callbackaddr; 805 } 806 snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", 807 ip6add, cp2[0], cp2[1]); 808 } else 809#endif 810 { 811 (void) nfsm_strtom(nd, "tcp", 3); 812 if (callblen == 0) 813 snprintf(addr, INET6_ADDRSTRLEN + 9, 814 "%d.%d.%d.%d.%d.%d", cp[0], cp[1], 815 cp[2], cp[3], cp2[0], cp2[1]); 816 else 817 snprintf(addr, INET6_ADDRSTRLEN + 9, 818 "%s.%d.%d", nfsv4_callbackaddr, 819 cp2[0], cp2[1]); 820 } 821 (void) nfsm_strtom(nd, addr, strlen(addr)); 822 } else { 823 (void) nfsm_strtom(nd, "tcp", 3); 824 (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); 825 } 826 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 827 *tl = txdr_unsigned(clp->nfsc_cbident); 828 nd->nd_flag |= ND_USEGSSNAME; 829 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 830 NFS_PROG, NFS_VER4, NULL, 1, NULL); 831 if (error) 832 return (error); 833 if (nd->nd_repstat == 0) { 834 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 835 clp->nfsc_clientid.lval[0] = *tl++; 836 clp->nfsc_clientid.lval[1] = *tl++; 837 confirm.lval[0] = *tl++; 838 confirm.lval[1] = *tl; 839 mbuf_freem(nd->nd_mrep); 840 nd->nd_mrep = NULL; 841 842 /* 843 * and confirm it. 844 */ 845 nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL); 846 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 847 *tl++ = clp->nfsc_clientid.lval[0]; 848 *tl++ = clp->nfsc_clientid.lval[1]; 849 *tl++ = confirm.lval[0]; 850 *tl = confirm.lval[1]; 851 nd->nd_flag |= ND_USEGSSNAME; 852 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 853 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 854 if (error) 855 return (error); 856 mbuf_freem(nd->nd_mrep); 857 nd->nd_mrep = NULL; 858 if (nd->nd_repstat == 0) { 859 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, 860 nmp->nm_fhsize, NULL); 861 NFSZERO_ATTRBIT(&attrbits); 862 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); 863 (void) nfsrv_putattrbit(nd, &attrbits); 864 nd->nd_flag |= ND_USEGSSNAME; 865 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 866 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 867 if (error) 868 return (error); 869 if (nd->nd_repstat == 0) { 870 error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, 871 NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); 872 if (error) 873 goto nfsmout; 874 clp->nfsc_renew = NFSCL_RENEW(lease); 875 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; 876 clp->nfsc_clientidrev++; 877 if (clp->nfsc_clientidrev == 0) 878 clp->nfsc_clientidrev++; 879 } 880 } 881 } 882 error = nd->nd_repstat; 883nfsmout: 884 mbuf_freem(nd->nd_mrep); 885 return (error); 886} 887 888/* 889 * nfs getattr call. 890 */ 891APPLESTATIC int 892nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 893 struct nfsvattr *nap, void *stuff) 894{ 895 struct nfsrv_descript nfsd, *nd = &nfsd; 896 int error; 897 nfsattrbit_t attrbits; 898 899 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 900 if (nd->nd_flag & ND_NFSV4) { 901 NFSGETATTR_ATTRBIT(&attrbits); 902 (void) nfsrv_putattrbit(nd, &attrbits); 903 } 904 error = nfscl_request(nd, vp, p, cred, stuff); 905 if (error) 906 return (error); 907 if (!nd->nd_repstat) 908 error = nfsm_loadattr(nd, nap); 909 else 910 error = nd->nd_repstat; 911 mbuf_freem(nd->nd_mrep); 912 return (error); 913} 914 915/* 916 * nfs getattr call with non-vnode arguemnts. 917 */ 918APPLESTATIC int 919nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, 920 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp) 921{ 922 struct nfsrv_descript nfsd, *nd = &nfsd; 923 int error, vers = NFS_VER2; 924 nfsattrbit_t attrbits; 925 926 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL); 927 if (nd->nd_flag & ND_NFSV4) { 928 vers = NFS_VER4; 929 NFSGETATTR_ATTRBIT(&attrbits); 930 (void) nfsrv_putattrbit(nd, &attrbits); 931 } else if (nd->nd_flag & ND_NFSV3) { 932 vers = NFS_VER3; 933 } 934 if (syscred) 935 nd->nd_flag |= ND_USEGSSNAME; 936 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 937 NFS_PROG, vers, NULL, 1, xidp); 938 if (error) 939 return (error); 940 if (!nd->nd_repstat) 941 error = nfsm_loadattr(nd, nap); 942 else 943 error = nd->nd_repstat; 944 mbuf_freem(nd->nd_mrep); 945 return (error); 946} 947 948/* 949 * Do an nfs setattr operation. 950 */ 951APPLESTATIC int 952nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, 953 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, 954 void *stuff) 955{ 956 int error, expireret = 0, openerr, retrycnt; 957 u_int32_t clidrev = 0, mode; 958 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 959 struct nfsfh *nfhp; 960 nfsv4stateid_t stateid; 961 void *lckp; 962 963 if (nmp->nm_clp != NULL) 964 clidrev = nmp->nm_clp->nfsc_clientidrev; 965 if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) 966 mode = NFSV4OPEN_ACCESSWRITE; 967 else 968 mode = NFSV4OPEN_ACCESSREAD; 969 retrycnt = 0; 970 do { 971 lckp = NULL; 972 openerr = 1; 973 if (NFSHASNFSV4(nmp)) { 974 nfhp = VTONFS(vp)->n_fhp; 975 error = nfscl_getstateid(vp, nfhp->nfh_fh, 976 nfhp->nfh_len, mode, cred, p, &stateid, &lckp); 977 if (error && vnode_vtype(vp) == VREG && 978 (mode == NFSV4OPEN_ACCESSWRITE || 979 nfstest_openallsetattr)) { 980 /* 981 * No Open stateid, so try and open the file 982 * now. 983 */ 984 if (mode == NFSV4OPEN_ACCESSWRITE) 985 openerr = nfsrpc_open(vp, FWRITE, cred, 986 p); 987 else 988 openerr = nfsrpc_open(vp, FREAD, cred, 989 p); 990 if (!openerr) 991 (void) nfscl_getstateid(vp, 992 nfhp->nfh_fh, nfhp->nfh_len, 993 mode, cred, p, &stateid, &lckp); 994 } 995 } 996 if (vap != NULL) 997 error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, 998 rnap, attrflagp, stuff); 999 else 1000 error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, 1001 stuff); 1002 if (error == NFSERR_STALESTATEID) 1003 nfscl_initiate_recovery(nmp->nm_clp); 1004 if (lckp != NULL) 1005 nfscl_lockderef(lckp); 1006 if (!openerr) 1007 (void) nfsrpc_close(vp, 0, p); 1008 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1009 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1010 error == NFSERR_OLDSTATEID) { 1011 (void) nfs_catnap(PZERO, error, "nfs_setattr"); 1012 } else if ((error == NFSERR_EXPIRED || 1013 error == NFSERR_BADSTATEID) && clidrev != 0) { 1014 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1015 } 1016 retrycnt++; 1017 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1018 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1019 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1020 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1021 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1022 if (error && retrycnt >= 4) 1023 error = EIO; 1024 return (error); 1025} 1026 1027static int 1028nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap, 1029 nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, 1030 struct nfsvattr *rnap, int *attrflagp, void *stuff) 1031{ 1032 u_int32_t *tl; 1033 struct nfsrv_descript nfsd, *nd = &nfsd; 1034 int error; 1035 nfsattrbit_t attrbits; 1036 1037 *attrflagp = 0; 1038 NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp); 1039 if (nd->nd_flag & ND_NFSV4) 1040 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1041 vap->va_type = vnode_vtype(vp); 1042 nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0); 1043 if (nd->nd_flag & ND_NFSV3) { 1044 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1045 *tl = newnfs_false; 1046 } else if (nd->nd_flag & ND_NFSV4) { 1047 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1048 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1049 NFSGETATTR_ATTRBIT(&attrbits); 1050 (void) nfsrv_putattrbit(nd, &attrbits); 1051 } 1052 error = nfscl_request(nd, vp, p, cred, stuff); 1053 if (error) 1054 return (error); 1055 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1056 error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff); 1057 if ((nd->nd_flag & ND_NFSV4) && !error) 1058 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1059 if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error) 1060 error = nfscl_postop_attr(nd, rnap, attrflagp, stuff); 1061 mbuf_freem(nd->nd_mrep); 1062 if (nd->nd_repstat && !error) 1063 error = nd->nd_repstat; 1064 return (error); 1065} 1066 1067/* 1068 * nfs lookup rpc 1069 */ 1070APPLESTATIC int 1071nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred, 1072 NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap, 1073 struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff) 1074{ 1075 u_int32_t *tl; 1076 struct nfsrv_descript nfsd, *nd = &nfsd; 1077 struct nfsmount *nmp; 1078 struct nfsnode *np; 1079 struct nfsfh *nfhp; 1080 nfsattrbit_t attrbits; 1081 int error = 0, lookupp = 0; 1082 1083 *attrflagp = 0; 1084 *dattrflagp = 0; 1085 if (vnode_vtype(dvp) != VDIR) 1086 return (ENOTDIR); 1087 nmp = VFSTONFS(vnode_mount(dvp)); 1088 if (len > NFS_MAXNAMLEN) 1089 return (ENAMETOOLONG); 1090 if (NFSHASNFSV4(nmp) && len == 1 && 1091 name[0] == '.') { 1092 /* 1093 * Just return the current dir's fh. 1094 */ 1095 np = VTONFS(dvp); 1096 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1097 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1098 nfhp->nfh_len = np->n_fhp->nfh_len; 1099 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1100 *nfhpp = nfhp; 1101 return (0); 1102 } 1103 if (NFSHASNFSV4(nmp) && len == 2 && 1104 name[0] == '.' && name[1] == '.') { 1105 lookupp = 1; 1106 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp); 1107 } else { 1108 NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp); 1109 (void) nfsm_strtom(nd, name, len); 1110 } 1111 if (nd->nd_flag & ND_NFSV4) { 1112 NFSGETATTR_ATTRBIT(&attrbits); 1113 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1114 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1115 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1116 (void) nfsrv_putattrbit(nd, &attrbits); 1117 } 1118 error = nfscl_request(nd, dvp, p, cred, stuff); 1119 if (error) 1120 return (error); 1121 if (nd->nd_repstat) { 1122 /* 1123 * When an NFSv4 Lookupp returns ENOENT, it means that 1124 * the lookup is at the root of an fs, so return this dir. 1125 */ 1126 if (nd->nd_repstat == NFSERR_NOENT && lookupp) { 1127 np = VTONFS(dvp); 1128 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1129 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1130 nfhp->nfh_len = np->n_fhp->nfh_len; 1131 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1132 *nfhpp = nfhp; 1133 mbuf_freem(nd->nd_mrep); 1134 return (0); 1135 } 1136 if (nd->nd_flag & ND_NFSV3) 1137 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1138 goto nfsmout; 1139 } 1140 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 1141 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1142 if (*(tl + 1)) { 1143 nd->nd_flag |= ND_NOMOREDATA; 1144 goto nfsmout; 1145 } 1146 } 1147 error = nfsm_getfh(nd, nfhpp); 1148 if (error) 1149 goto nfsmout; 1150 1151 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1152 if ((nd->nd_flag & ND_NFSV3) && !error) 1153 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1154nfsmout: 1155 mbuf_freem(nd->nd_mrep); 1156 if (!error && nd->nd_repstat) 1157 error = nd->nd_repstat; 1158 return (error); 1159} 1160 1161/* 1162 * Do a readlink rpc. 1163 */ 1164APPLESTATIC int 1165nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred, 1166 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1167{ 1168 u_int32_t *tl; 1169 struct nfsrv_descript nfsd, *nd = &nfsd; 1170 struct nfsnode *np = VTONFS(vp); 1171 nfsattrbit_t attrbits; 1172 int error, len, cangetattr = 1; 1173 1174 *attrflagp = 0; 1175 NFSCL_REQSTART(nd, NFSPROC_READLINK, vp); 1176 if (nd->nd_flag & ND_NFSV4) { 1177 /* 1178 * And do a Getattr op. 1179 */ 1180 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1181 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1182 NFSGETATTR_ATTRBIT(&attrbits); 1183 (void) nfsrv_putattrbit(nd, &attrbits); 1184 } 1185 error = nfscl_request(nd, vp, p, cred, stuff); 1186 if (error) 1187 return (error); 1188 if (nd->nd_flag & ND_NFSV3) 1189 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1190 if (!nd->nd_repstat && !error) { 1191 NFSM_STRSIZ(len, NFS_MAXPATHLEN); 1192 /* 1193 * This seems weird to me, but must have been added to 1194 * FreeBSD for some reason. The only thing I can think of 1195 * is that there was/is some server that replies with 1196 * more link data than it should? 1197 */ 1198 if (len == NFS_MAXPATHLEN) { 1199 NFSLOCKNODE(np); 1200 if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) { 1201 len = np->n_size; 1202 cangetattr = 0; 1203 } 1204 NFSUNLOCKNODE(np); 1205 } 1206 error = nfsm_mbufuio(nd, uiop, len); 1207 if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr) 1208 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1209 } 1210 if (nd->nd_repstat && !error) 1211 error = nd->nd_repstat; 1212nfsmout: 1213 mbuf_freem(nd->nd_mrep); 1214 return (error); 1215} 1216 1217/* 1218 * Read operation. 1219 */ 1220APPLESTATIC int 1221nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred, 1222 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1223{ 1224 int error, expireret = 0, retrycnt; 1225 u_int32_t clidrev = 0; 1226 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1227 struct nfsnode *np = VTONFS(vp); 1228 struct ucred *newcred; 1229 struct nfsfh *nfhp = NULL; 1230 nfsv4stateid_t stateid; 1231 void *lckp; 1232 1233 if (nmp->nm_clp != NULL) 1234 clidrev = nmp->nm_clp->nfsc_clientidrev; 1235 newcred = cred; 1236 if (NFSHASNFSV4(nmp)) { 1237 nfhp = np->n_fhp; 1238 if (p == NULL) 1239 newcred = NFSNEWCRED(cred); 1240 } 1241 retrycnt = 0; 1242 do { 1243 lckp = NULL; 1244 if (NFSHASNFSV4(nmp)) 1245 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1246 NFSV4OPEN_ACCESSREAD, newcred, p, &stateid, &lckp); 1247 error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap, 1248 attrflagp, stuff); 1249 if (error == NFSERR_STALESTATEID) 1250 nfscl_initiate_recovery(nmp->nm_clp); 1251 if (lckp != NULL) 1252 nfscl_lockderef(lckp); 1253 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1254 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1255 error == NFSERR_OLDSTATEID) { 1256 (void) nfs_catnap(PZERO, error, "nfs_read"); 1257 } else if ((error == NFSERR_EXPIRED || 1258 error == NFSERR_BADSTATEID) && clidrev != 0) { 1259 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1260 } 1261 retrycnt++; 1262 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1263 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1264 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1265 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1266 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1267 if (error && retrycnt >= 4) 1268 error = EIO; 1269 if (NFSHASNFSV4(nmp) && p == NULL) 1270 NFSFREECRED(newcred); 1271 return (error); 1272} 1273 1274/* 1275 * The actual read RPC. 1276 */ 1277static int 1278nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred, 1279 nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap, 1280 int *attrflagp, void *stuff) 1281{ 1282 u_int32_t *tl; 1283 int error = 0, len, retlen, tsiz, eof = 0; 1284 struct nfsrv_descript nfsd; 1285 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1286 struct nfsrv_descript *nd = &nfsd; 1287 int rsize; 1288 off_t tmp_off; 1289 1290 *attrflagp = 0; 1291 tsiz = uio_uio_resid(uiop); 1292 tmp_off = uiop->uio_offset + tsiz; 1293 NFSLOCKMNT(nmp); 1294 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1295 NFSUNLOCKMNT(nmp); 1296 return (EFBIG); 1297 } 1298 rsize = nmp->nm_rsize; 1299 NFSUNLOCKMNT(nmp); 1300 nd->nd_mrep = NULL; 1301 while (tsiz > 0) { 1302 *attrflagp = 0; 1303 len = (tsiz > rsize) ? rsize : tsiz; 1304 NFSCL_REQSTART(nd, NFSPROC_READ, vp); 1305 if (nd->nd_flag & ND_NFSV4) 1306 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1307 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1308 if (nd->nd_flag & ND_NFSV2) { 1309 *tl++ = txdr_unsigned(uiop->uio_offset); 1310 *tl++ = txdr_unsigned(len); 1311 *tl = 0; 1312 } else { 1313 txdr_hyper(uiop->uio_offset, tl); 1314 *(tl + 2) = txdr_unsigned(len); 1315 } 1316 /* 1317 * Since I can't do a Getattr for NFSv4 for Write, there 1318 * doesn't seem any point in doing one here, either. 1319 * (See the comment in nfsrpc_writerpc() for more info.) 1320 */ 1321 error = nfscl_request(nd, vp, p, cred, stuff); 1322 if (error) 1323 return (error); 1324 if (nd->nd_flag & ND_NFSV3) { 1325 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1326 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 1327 error = nfsm_loadattr(nd, nap); 1328 if (!error) 1329 *attrflagp = 1; 1330 } 1331 if (nd->nd_repstat || error) { 1332 if (!error) 1333 error = nd->nd_repstat; 1334 goto nfsmout; 1335 } 1336 if (nd->nd_flag & ND_NFSV3) { 1337 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1338 eof = fxdr_unsigned(int, *(tl + 1)); 1339 } else if (nd->nd_flag & ND_NFSV4) { 1340 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1341 eof = fxdr_unsigned(int, *tl); 1342 } 1343 NFSM_STRSIZ(retlen, rsize); 1344 error = nfsm_mbufuio(nd, uiop, retlen); 1345 if (error) 1346 goto nfsmout; 1347 mbuf_freem(nd->nd_mrep); 1348 nd->nd_mrep = NULL; 1349 tsiz -= retlen; 1350 if (!(nd->nd_flag & ND_NFSV2)) { 1351 if (eof || retlen == 0) 1352 tsiz = 0; 1353 } else if (retlen < len) 1354 tsiz = 0; 1355 } 1356 return (0); 1357nfsmout: 1358 if (nd->nd_mrep != NULL) 1359 mbuf_freem(nd->nd_mrep); 1360 return (error); 1361} 1362 1363/* 1364 * nfs write operation 1365 * When called_from_strategy != 0, it should return EIO for an error that 1366 * indicates recovery is in progress, so that the buffer will be left 1367 * dirty and be written back to the server later. If it loops around, 1368 * the recovery thread could get stuck waiting for the buffer and recovery 1369 * will then deadlock. 1370 */ 1371APPLESTATIC int 1372nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, 1373 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 1374 void *stuff, int called_from_strategy) 1375{ 1376 int error, expireret = 0, retrycnt, nostateid; 1377 u_int32_t clidrev = 0; 1378 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1379 struct nfsnode *np = VTONFS(vp); 1380 struct ucred *newcred; 1381 struct nfsfh *nfhp = NULL; 1382 nfsv4stateid_t stateid; 1383 void *lckp; 1384 1385 *must_commit = 0; 1386 if (nmp->nm_clp != NULL) 1387 clidrev = nmp->nm_clp->nfsc_clientidrev; 1388 newcred = cred; 1389 if (NFSHASNFSV4(nmp)) { 1390 if (p == NULL) 1391 newcred = NFSNEWCRED(cred); 1392 nfhp = np->n_fhp; 1393 } 1394 retrycnt = 0; 1395 do { 1396 lckp = NULL; 1397 nostateid = 0; 1398 if (NFSHASNFSV4(nmp)) { 1399 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1400 NFSV4OPEN_ACCESSWRITE, newcred, p, &stateid, &lckp); 1401 if (stateid.other[0] == 0 && stateid.other[1] == 0 && 1402 stateid.other[2] == 0) { 1403 nostateid = 1; 1404 printf("stateid0 in write\n"); 1405 } 1406 } 1407 1408 /* 1409 * If there is no stateid for NFSv4, it means this is an 1410 * extraneous write after close. Basically a poorly 1411 * implemented buffer cache. Just don't do the write. 1412 */ 1413 if (nostateid) 1414 error = 0; 1415 else 1416 error = nfsrpc_writerpc(vp, uiop, iomode, must_commit, 1417 newcred, &stateid, p, nap, attrflagp, stuff); 1418 if (error == NFSERR_STALESTATEID) 1419 nfscl_initiate_recovery(nmp->nm_clp); 1420 if (lckp != NULL) 1421 nfscl_lockderef(lckp); 1422 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1423 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1424 error == NFSERR_OLDSTATEID) { 1425 (void) nfs_catnap(PZERO, error, "nfs_write"); 1426 } else if ((error == NFSERR_EXPIRED || 1427 error == NFSERR_BADSTATEID) && clidrev != 0) { 1428 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1429 } 1430 retrycnt++; 1431 } while (error == NFSERR_GRACE || error == NFSERR_DELAY || 1432 ((error == NFSERR_STALESTATEID || 1433 error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) || 1434 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1435 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1436 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1437 if (error != 0 && (retrycnt >= 4 || 1438 ((error == NFSERR_STALESTATEID || 1439 error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0))) 1440 error = EIO; 1441 if (NFSHASNFSV4(nmp) && p == NULL) 1442 NFSFREECRED(newcred); 1443 return (error); 1444} 1445 1446/* 1447 * The actual write RPC. 1448 */ 1449static int 1450nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, 1451 int *must_commit, struct ucred *cred, nfsv4stateid_t *stateidp, 1452 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1453{ 1454 u_int32_t *tl; 1455 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1456 struct nfsnode *np = VTONFS(vp); 1457 int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; 1458 int wccflag = 0, wsize; 1459 int32_t backup; 1460 struct nfsrv_descript nfsd; 1461 struct nfsrv_descript *nd = &nfsd; 1462 nfsattrbit_t attrbits; 1463 off_t tmp_off; 1464 1465 KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1")); 1466 *attrflagp = 0; 1467 tsiz = uio_uio_resid(uiop); 1468 tmp_off = uiop->uio_offset + tsiz; 1469 NFSLOCKMNT(nmp); 1470 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1471 NFSUNLOCKMNT(nmp); 1472 return (EFBIG); 1473 } 1474 wsize = nmp->nm_wsize; 1475 NFSUNLOCKMNT(nmp); 1476 nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ 1477 nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ 1478 while (tsiz > 0) { 1479 *attrflagp = 0; 1480 len = (tsiz > wsize) ? wsize : tsiz; 1481 NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); 1482 if (nd->nd_flag & ND_NFSV4) { 1483 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1484 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); 1485 txdr_hyper(uiop->uio_offset, tl); 1486 tl += 2; 1487 *tl++ = txdr_unsigned(*iomode); 1488 *tl = txdr_unsigned(len); 1489 } else if (nd->nd_flag & ND_NFSV3) { 1490 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); 1491 txdr_hyper(uiop->uio_offset, tl); 1492 tl += 2; 1493 *tl++ = txdr_unsigned(len); 1494 *tl++ = txdr_unsigned(*iomode); 1495 *tl = txdr_unsigned(len); 1496 } else { 1497 u_int32_t x; 1498 1499 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1500 /* 1501 * Not sure why someone changed this, since the 1502 * RFC clearly states that "beginoffset" and 1503 * "totalcount" are ignored, but it wouldn't 1504 * surprise me if there's a busted server out there. 1505 */ 1506 /* Set both "begin" and "current" to non-garbage. */ 1507 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1508 *tl++ = x; /* "begin offset" */ 1509 *tl++ = x; /* "current offset" */ 1510 x = txdr_unsigned(len); 1511 *tl++ = x; /* total to this offset */ 1512 *tl = x; /* size of this write */ 1513 1514 } 1515 nfsm_uiombuf(nd, uiop, len); 1516 /* 1517 * Although it is tempting to do a normal Getattr Op in the 1518 * NFSv4 compound, the result can be a nearly hung client 1519 * system if the Getattr asks for Owner and/or OwnerGroup. 1520 * It occurs when the client can't map either the Owner or 1521 * Owner_group name in the Getattr reply to a uid/gid. When 1522 * there is a cache miss, the kernel does an upcall to the 1523 * nfsuserd. Then, it can try and read the local /etc/passwd 1524 * or /etc/group file. It can then block in getnewbuf(), 1525 * waiting for dirty writes to be pushed to the NFS server. 1526 * The only reason this doesn't result in a complete 1527 * deadlock, is that the upcall times out and allows 1528 * the write to complete. However, progress is so slow 1529 * that it might just as well be deadlocked. 1530 * So, we just get the attributes that change with each 1531 * write Op. 1532 * nb: nfscl_loadattrcache() needs to be told that these 1533 * partial attributes from a write rpc are being 1534 * passed in, via a argument flag. 1535 */ 1536 if (nd->nd_flag & ND_NFSV4) { 1537 NFSWRITEGETATTR_ATTRBIT(&attrbits); 1538 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1539 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1540 (void) nfsrv_putattrbit(nd, &attrbits); 1541 } 1542 error = nfscl_request(nd, vp, p, cred, stuff); 1543 if (error) 1544 return (error); 1545 if (nd->nd_repstat) { 1546 /* 1547 * In case the rpc gets retried, roll 1548 * the uio fileds changed by nfsm_uiombuf() 1549 * back. 1550 */ 1551 uiop->uio_offset -= len; 1552 uio_uio_resid_add(uiop, len); 1553 uio_iov_base_add(uiop, -len); 1554 uio_iov_len_add(uiop, len); 1555 } 1556 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1557 error = nfscl_wcc_data(nd, vp, nap, attrflagp, 1558 &wccflag, stuff); 1559 if (error) 1560 goto nfsmout; 1561 } 1562 if (!nd->nd_repstat) { 1563 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1564 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1565 + NFSX_VERF); 1566 rlen = fxdr_unsigned(int, *tl++); 1567 if (rlen == 0) { 1568 error = NFSERR_IO; 1569 goto nfsmout; 1570 } else if (rlen < len) { 1571 backup = len - rlen; 1572 uio_iov_base_add(uiop, -(backup)); 1573 uio_iov_len_add(uiop, backup); 1574 uiop->uio_offset -= backup; 1575 uio_uio_resid_add(uiop, backup); 1576 len = rlen; 1577 } 1578 commit = fxdr_unsigned(int, *tl++); 1579 1580 /* 1581 * Return the lowest committment level 1582 * obtained by any of the RPCs. 1583 */ 1584 if (committed == NFSWRITE_FILESYNC) 1585 committed = commit; 1586 else if (committed == NFSWRITE_DATASYNC && 1587 commit == NFSWRITE_UNSTABLE) 1588 committed = commit; 1589 NFSLOCKMNT(nmp); 1590 if (!NFSHASWRITEVERF(nmp)) { 1591 NFSBCOPY((caddr_t)tl, 1592 (caddr_t)&nmp->nm_verf[0], 1593 NFSX_VERF); 1594 NFSSETWRITEVERF(nmp); 1595 } else if (NFSBCMP(tl, nmp->nm_verf, 1596 NFSX_VERF)) { 1597 *must_commit = 1; 1598 NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); 1599 } 1600 NFSUNLOCKMNT(nmp); 1601 } 1602 if (nd->nd_flag & ND_NFSV4) 1603 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1604 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { 1605 error = nfsm_loadattr(nd, nap); 1606 if (!error) 1607 *attrflagp = NFS_LATTR_NOSHRINK; 1608 } 1609 } else { 1610 error = nd->nd_repstat; 1611 } 1612 if (error) 1613 goto nfsmout; 1614 NFSWRITERPC_SETTIME(wccflag, np, (nd->nd_flag & ND_NFSV4)); 1615 mbuf_freem(nd->nd_mrep); 1616 nd->nd_mrep = NULL; 1617 tsiz -= len; 1618 } 1619nfsmout: 1620 if (nd->nd_mrep != NULL) 1621 mbuf_freem(nd->nd_mrep); 1622 *iomode = committed; 1623 if (nd->nd_repstat && !error) 1624 error = nd->nd_repstat; 1625 return (error); 1626} 1627 1628/* 1629 * nfs mknod rpc 1630 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1631 * mode set to specify the file type and the size field for rdev. 1632 */ 1633APPLESTATIC int 1634nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1635 u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, 1636 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1637 int *attrflagp, int *dattrflagp, void *dstuff) 1638{ 1639 u_int32_t *tl; 1640 int error = 0; 1641 struct nfsrv_descript nfsd, *nd = &nfsd; 1642 nfsattrbit_t attrbits; 1643 1644 *nfhpp = NULL; 1645 *attrflagp = 0; 1646 *dattrflagp = 0; 1647 if (namelen > NFS_MAXNAMLEN) 1648 return (ENAMETOOLONG); 1649 NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); 1650 if (nd->nd_flag & ND_NFSV4) { 1651 if (vtyp == VBLK || vtyp == VCHR) { 1652 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1653 *tl++ = vtonfsv34_type(vtyp); 1654 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1655 *tl = txdr_unsigned(NFSMINOR(rdev)); 1656 } else { 1657 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1658 *tl = vtonfsv34_type(vtyp); 1659 } 1660 } 1661 (void) nfsm_strtom(nd, name, namelen); 1662 if (nd->nd_flag & ND_NFSV3) { 1663 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1664 *tl = vtonfsv34_type(vtyp); 1665 } 1666 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1667 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1668 if ((nd->nd_flag & ND_NFSV3) && 1669 (vtyp == VCHR || vtyp == VBLK)) { 1670 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1671 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1672 *tl = txdr_unsigned(NFSMINOR(rdev)); 1673 } 1674 if (nd->nd_flag & ND_NFSV4) { 1675 NFSGETATTR_ATTRBIT(&attrbits); 1676 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1677 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1678 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1679 (void) nfsrv_putattrbit(nd, &attrbits); 1680 } 1681 if (nd->nd_flag & ND_NFSV2) 1682 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); 1683 error = nfscl_request(nd, dvp, p, cred, dstuff); 1684 if (error) 1685 return (error); 1686 if (nd->nd_flag & ND_NFSV4) 1687 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1688 if (!nd->nd_repstat) { 1689 if (nd->nd_flag & ND_NFSV4) { 1690 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1691 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1692 if (error) 1693 goto nfsmout; 1694 } 1695 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1696 if (error) 1697 goto nfsmout; 1698 } 1699 if (nd->nd_flag & ND_NFSV3) 1700 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1701 if (!error && nd->nd_repstat) 1702 error = nd->nd_repstat; 1703nfsmout: 1704 mbuf_freem(nd->nd_mrep); 1705 return (error); 1706} 1707 1708/* 1709 * nfs file create call 1710 * Mostly just call the approriate routine. (I separated out v4, so that 1711 * error recovery wouldn't be as difficult.) 1712 */ 1713APPLESTATIC int 1714nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1715 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1716 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1717 int *attrflagp, int *dattrflagp, void *dstuff) 1718{ 1719 int error = 0, newone, expireret = 0, retrycnt, unlocked; 1720 struct nfsclowner *owp; 1721 struct nfscldeleg *dp; 1722 struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); 1723 u_int32_t clidrev; 1724 1725 if (NFSHASNFSV4(nmp)) { 1726 retrycnt = 0; 1727 do { 1728 dp = NULL; 1729 error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | 1730 NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, 1731 NULL, 1); 1732 if (error) 1733 return (error); 1734 if (nmp->nm_clp != NULL) 1735 clidrev = nmp->nm_clp->nfsc_clientidrev; 1736 else 1737 clidrev = 0; 1738 error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, fmode, 1739 owp, &dp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1740 dstuff, &unlocked); 1741 /* 1742 * There is no need to invalidate cached attributes here, 1743 * since new post-delegation issue attributes are always 1744 * returned by nfsrpc_createv4() and these will update the 1745 * attribute cache. 1746 */ 1747 if (dp != NULL) 1748 (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, 1749 (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); 1750 nfscl_ownerrelease(owp, error, newone, unlocked); 1751 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1752 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 1753 (void) nfs_catnap(PZERO, error, "nfs_open"); 1754 } else if ((error == NFSERR_EXPIRED || 1755 error == NFSERR_BADSTATEID) && clidrev != 0) { 1756 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1757 retrycnt++; 1758 } 1759 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1760 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1761 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1762 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1763 if (error && retrycnt >= 4) 1764 error = EIO; 1765 } else { 1766 error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, 1767 fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1768 dstuff); 1769 } 1770 return (error); 1771} 1772 1773/* 1774 * The create rpc for v2 and 3. 1775 */ 1776static int 1777nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1778 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1779 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1780 int *attrflagp, int *dattrflagp, void *dstuff) 1781{ 1782 u_int32_t *tl; 1783 int error = 0; 1784 struct nfsrv_descript nfsd, *nd = &nfsd; 1785 1786 *nfhpp = NULL; 1787 *attrflagp = 0; 1788 *dattrflagp = 0; 1789 if (namelen > NFS_MAXNAMLEN) 1790 return (ENAMETOOLONG); 1791 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1792 (void) nfsm_strtom(nd, name, namelen); 1793 if (nd->nd_flag & ND_NFSV3) { 1794 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1795 if (fmode & O_EXCL) { 1796 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1797 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1798 *tl++ = cverf.lval[0]; 1799 *tl = cverf.lval[1]; 1800 } else { 1801 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1802 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1803 } 1804 } else { 1805 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); 1806 } 1807 error = nfscl_request(nd, dvp, p, cred, dstuff); 1808 if (error) 1809 return (error); 1810 if (nd->nd_repstat == 0) { 1811 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1812 if (error) 1813 goto nfsmout; 1814 } 1815 if (nd->nd_flag & ND_NFSV3) 1816 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1817 if (nd->nd_repstat != 0 && error == 0) 1818 error = nd->nd_repstat; 1819nfsmout: 1820 mbuf_freem(nd->nd_mrep); 1821 return (error); 1822} 1823 1824static int 1825nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1826 nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, 1827 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 1828 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 1829 int *dattrflagp, void *dstuff, int *unlockedp) 1830{ 1831 u_int32_t *tl; 1832 int error = 0, deleg, newone, ret, acesize, limitby; 1833 struct nfsrv_descript nfsd, *nd = &nfsd; 1834 struct nfsclopen *op; 1835 struct nfscldeleg *dp = NULL; 1836 struct nfsnode *np; 1837 struct nfsfh *nfhp; 1838 nfsattrbit_t attrbits; 1839 nfsv4stateid_t stateid; 1840 u_int32_t rflags; 1841 1842 *unlockedp = 0; 1843 *nfhpp = NULL; 1844 *dpp = NULL; 1845 *attrflagp = 0; 1846 *dattrflagp = 0; 1847 if (namelen > NFS_MAXNAMLEN) 1848 return (ENAMETOOLONG); 1849 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1850 /* 1851 * For V4, this is actually an Open op. 1852 */ 1853 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1854 *tl++ = txdr_unsigned(owp->nfsow_seqid); 1855 *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | 1856 NFSV4OPEN_ACCESSREAD); 1857 *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); 1858 *tl++ = owp->nfsow_clp->nfsc_clientid.lval[0]; 1859 *tl = owp->nfsow_clp->nfsc_clientid.lval[1]; 1860 (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); 1861 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1862 *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); 1863 if (fmode & O_EXCL) { 1864 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1865 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1866 *tl++ = cverf.lval[0]; 1867 *tl = cverf.lval[1]; 1868 } else { 1869 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1870 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1871 } 1872 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1873 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 1874 (void) nfsm_strtom(nd, name, namelen); 1875 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1876 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1877 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1878 NFSGETATTR_ATTRBIT(&attrbits); 1879 (void) nfsrv_putattrbit(nd, &attrbits); 1880 error = nfscl_request(nd, dvp, p, cred, dstuff); 1881 if (error) 1882 return (error); 1883 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1884 if (error) 1885 goto nfsmout; 1886 NFSCL_INCRSEQID(owp->nfsow_seqid, nd); 1887 if (nd->nd_repstat == 0) { 1888 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1889 6 * NFSX_UNSIGNED); 1890 stateid.seqid = *tl++; 1891 stateid.other[0] = *tl++; 1892 stateid.other[1] = *tl++; 1893 stateid.other[2] = *tl; 1894 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 1895 (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1896 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1897 deleg = fxdr_unsigned(int, *tl); 1898 if (deleg == NFSV4OPEN_DELEGATEREAD || 1899 deleg == NFSV4OPEN_DELEGATEWRITE) { 1900 if (!(owp->nfsow_clp->nfsc_flags & 1901 NFSCLFLAGS_FIRSTDELEG)) 1902 owp->nfsow_clp->nfsc_flags |= 1903 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 1904 MALLOC(dp, struct nfscldeleg *, 1905 sizeof (struct nfscldeleg) + NFSX_V4FHMAX, 1906 M_NFSCLDELEG, M_WAITOK); 1907 LIST_INIT(&dp->nfsdl_owner); 1908 LIST_INIT(&dp->nfsdl_lock); 1909 dp->nfsdl_clp = owp->nfsow_clp; 1910 newnfs_copyincred(cred, &dp->nfsdl_cred); 1911 nfscl_lockinit(&dp->nfsdl_rwlock); 1912 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1913 NFSX_UNSIGNED); 1914 dp->nfsdl_stateid.seqid = *tl++; 1915 dp->nfsdl_stateid.other[0] = *tl++; 1916 dp->nfsdl_stateid.other[1] = *tl++; 1917 dp->nfsdl_stateid.other[2] = *tl++; 1918 ret = fxdr_unsigned(int, *tl); 1919 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 1920 dp->nfsdl_flags = NFSCLDL_WRITE; 1921 /* 1922 * Indicates how much the file can grow. 1923 */ 1924 NFSM_DISSECT(tl, u_int32_t *, 1925 3 * NFSX_UNSIGNED); 1926 limitby = fxdr_unsigned(int, *tl++); 1927 switch (limitby) { 1928 case NFSV4OPEN_LIMITSIZE: 1929 dp->nfsdl_sizelimit = fxdr_hyper(tl); 1930 break; 1931 case NFSV4OPEN_LIMITBLOCKS: 1932 dp->nfsdl_sizelimit = 1933 fxdr_unsigned(u_int64_t, *tl++); 1934 dp->nfsdl_sizelimit *= 1935 fxdr_unsigned(u_int64_t, *tl); 1936 break; 1937 default: 1938 error = NFSERR_BADXDR; 1939 goto nfsmout; 1940 }; 1941 } else { 1942 dp->nfsdl_flags = NFSCLDL_READ; 1943 } 1944 if (ret) 1945 dp->nfsdl_flags |= NFSCLDL_RECALL; 1946 error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, 1947 &acesize, p); 1948 if (error) 1949 goto nfsmout; 1950 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 1951 error = NFSERR_BADXDR; 1952 goto nfsmout; 1953 } 1954 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1955 if (error) 1956 goto nfsmout; 1957 if (dp != NULL && *attrflagp) { 1958 dp->nfsdl_change = nnap->na_filerev; 1959 dp->nfsdl_modtime = nnap->na_mtime; 1960 dp->nfsdl_flags |= NFSCLDL_MODTIMESET; 1961 } 1962 /* 1963 * We can now complete the Open state. 1964 */ 1965 nfhp = *nfhpp; 1966 if (dp != NULL) { 1967 dp->nfsdl_fhlen = nfhp->nfh_len; 1968 NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); 1969 } 1970 /* 1971 * Get an Open structure that will be 1972 * attached to the OpenOwner, acquired already. 1973 */ 1974 error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, 1975 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, 1976 cred, p, NULL, &op, &newone, NULL, 0); 1977 if (error) 1978 goto nfsmout; 1979 op->nfso_stateid = stateid; 1980 newnfs_copyincred(cred, &op->nfso_cred); 1981 if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { 1982 do { 1983 ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, 1984 nfhp->nfh_len, op, cred, p); 1985 if (ret == NFSERR_DELAY) 1986 (void) nfs_catnap(PZERO, ret, "nfs_create"); 1987 } while (ret == NFSERR_DELAY); 1988 error = ret; 1989 } 1990 1991 /* 1992 * If the server is handing out delegations, but we didn't 1993 * get one because an OpenConfirm was required, try the 1994 * Open again, to get a delegation. This is a harmless no-op, 1995 * from a server's point of view. 1996 */ 1997 if ((rflags & NFSV4OPEN_RESULTCONFIRM) && 1998 (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && 1999 !error && dp == NULL) { 2000 np = VTONFS(dvp); 2001 do { 2002 ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, 2003 np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 2004 nfhp->nfh_fh, nfhp->nfh_len, 2005 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, 2006 name, namelen, &dp, 0, 0x0, cred, p, 0, 1); 2007 if (ret == NFSERR_DELAY) 2008 (void) nfs_catnap(PZERO, ret, "nfs_crt2"); 2009 } while (ret == NFSERR_DELAY); 2010 if (ret) { 2011 if (dp != NULL) 2012 FREE((caddr_t)dp, M_NFSCLDELEG); 2013 if (ret == NFSERR_STALECLIENTID || 2014 ret == NFSERR_STALEDONTRECOVER) 2015 error = ret; 2016 } 2017 } 2018 nfscl_openrelease(op, error, newone); 2019 *unlockedp = 1; 2020 } 2021 if (nd->nd_repstat != 0 && error == 0) 2022 error = nd->nd_repstat; 2023 if (error == NFSERR_STALECLIENTID) 2024 nfscl_initiate_recovery(owp->nfsow_clp); 2025nfsmout: 2026 if (!error) 2027 *dpp = dp; 2028 else if (dp != NULL) 2029 FREE((caddr_t)dp, M_NFSCLDELEG); 2030 mbuf_freem(nd->nd_mrep); 2031 return (error); 2032} 2033 2034/* 2035 * Nfs remove rpc 2036 */ 2037APPLESTATIC int 2038nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, 2039 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, 2040 void *dstuff) 2041{ 2042 u_int32_t *tl; 2043 struct nfsrv_descript nfsd, *nd = &nfsd; 2044 struct nfsnode *np; 2045 struct nfsmount *nmp; 2046 nfsv4stateid_t dstateid; 2047 int error, ret = 0, i; 2048 2049 *dattrflagp = 0; 2050 if (namelen > NFS_MAXNAMLEN) 2051 return (ENAMETOOLONG); 2052 nmp = VFSTONFS(vnode_mount(dvp)); 2053tryagain: 2054 if (NFSHASNFSV4(nmp) && ret == 0) { 2055 ret = nfscl_removedeleg(vp, p, &dstateid); 2056 if (ret == 1) { 2057 NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); 2058 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 2059 NFSX_UNSIGNED); 2060 *tl++ = dstateid.seqid; 2061 *tl++ = dstateid.other[0]; 2062 *tl++ = dstateid.other[1]; 2063 *tl++ = dstateid.other[2]; 2064 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2065 np = VTONFS(dvp); 2066 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2067 np->n_fhp->nfh_len, 0); 2068 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2069 *tl = txdr_unsigned(NFSV4OP_REMOVE); 2070 } 2071 } else { 2072 ret = 0; 2073 } 2074 if (ret == 0) 2075 NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); 2076 (void) nfsm_strtom(nd, name, namelen); 2077 error = nfscl_request(nd, dvp, p, cred, dstuff); 2078 if (error) 2079 return (error); 2080 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2081 /* For NFSv4, parse out any Delereturn replies. */ 2082 if (ret > 0 && nd->nd_repstat != 0 && 2083 (nd->nd_flag & ND_NOMOREDATA)) { 2084 /* 2085 * If the Delegreturn failed, try again without 2086 * it. The server will Recall, as required. 2087 */ 2088 mbuf_freem(nd->nd_mrep); 2089 goto tryagain; 2090 } 2091 for (i = 0; i < (ret * 2); i++) { 2092 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2093 ND_NFSV4) { 2094 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2095 if (*(tl + 1)) 2096 nd->nd_flag |= ND_NOMOREDATA; 2097 } 2098 } 2099 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2100 } 2101 if (nd->nd_repstat && !error) 2102 error = nd->nd_repstat; 2103nfsmout: 2104 mbuf_freem(nd->nd_mrep); 2105 return (error); 2106} 2107 2108/* 2109 * Do an nfs rename rpc. 2110 */ 2111APPLESTATIC int 2112nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, 2113 vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, 2114 NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, 2115 int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) 2116{ 2117 u_int32_t *tl; 2118 struct nfsrv_descript nfsd, *nd = &nfsd; 2119 struct nfsmount *nmp; 2120 struct nfsnode *np; 2121 nfsattrbit_t attrbits; 2122 nfsv4stateid_t fdstateid, tdstateid; 2123 int error = 0, ret = 0, gottd = 0, gotfd = 0, i; 2124 2125 *fattrflagp = 0; 2126 *tattrflagp = 0; 2127 nmp = VFSTONFS(vnode_mount(fdvp)); 2128 if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) 2129 return (ENAMETOOLONG); 2130tryagain: 2131 if (NFSHASNFSV4(nmp) && ret == 0) { 2132 ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, 2133 &tdstateid, &gottd, p); 2134 if (gotfd && gottd) { 2135 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); 2136 } else if (gotfd) { 2137 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); 2138 } else if (gottd) { 2139 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); 2140 } 2141 if (gotfd) { 2142 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2143 *tl++ = fdstateid.seqid; 2144 *tl++ = fdstateid.other[0]; 2145 *tl++ = fdstateid.other[1]; 2146 *tl = fdstateid.other[2]; 2147 if (gottd) { 2148 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2149 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2150 np = VTONFS(tvp); 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_DELEGRETURN); 2155 } 2156 } 2157 if (gottd) { 2158 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2159 *tl++ = tdstateid.seqid; 2160 *tl++ = tdstateid.other[0]; 2161 *tl++ = tdstateid.other[1]; 2162 *tl = tdstateid.other[2]; 2163 } 2164 if (ret > 0) { 2165 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2166 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2167 np = VTONFS(fdvp); 2168 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2169 np->n_fhp->nfh_len, 0); 2170 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2171 *tl = txdr_unsigned(NFSV4OP_SAVEFH); 2172 } 2173 } else { 2174 ret = 0; 2175 } 2176 if (ret == 0) 2177 NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); 2178 if (nd->nd_flag & ND_NFSV4) { 2179 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2180 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2181 NFSWCCATTR_ATTRBIT(&attrbits); 2182 (void) nfsrv_putattrbit(nd, &attrbits); 2183 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2184 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2185 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2186 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2187 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2188 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2189 (void) nfsrv_putattrbit(nd, &attrbits); 2190 nd->nd_flag |= ND_V4WCCATTR; 2191 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2192 *tl = txdr_unsigned(NFSV4OP_RENAME); 2193 } 2194 (void) nfsm_strtom(nd, fnameptr, fnamelen); 2195 if (!(nd->nd_flag & ND_NFSV4)) 2196 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2197 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2198 (void) nfsm_strtom(nd, tnameptr, tnamelen); 2199 error = nfscl_request(nd, fdvp, p, cred, fstuff); 2200 if (error) 2201 return (error); 2202 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2203 /* For NFSv4, parse out any Delereturn replies. */ 2204 if (ret > 0 && nd->nd_repstat != 0 && 2205 (nd->nd_flag & ND_NOMOREDATA)) { 2206 /* 2207 * If the Delegreturn failed, try again without 2208 * it. The server will Recall, as required. 2209 */ 2210 mbuf_freem(nd->nd_mrep); 2211 goto tryagain; 2212 } 2213 for (i = 0; i < (ret * 2); i++) { 2214 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2215 ND_NFSV4) { 2216 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2217 if (*(tl + 1)) { 2218 if (i == 0 && ret > 1) { 2219 /* 2220 * If the Delegreturn failed, try again 2221 * without it. The server will Recall, as 2222 * required. 2223 * If ret > 1, the first iteration of this 2224 * loop is the second DelegReturn result. 2225 */ 2226 mbuf_freem(nd->nd_mrep); 2227 goto tryagain; 2228 } else { 2229 nd->nd_flag |= ND_NOMOREDATA; 2230 } 2231 } 2232 } 2233 } 2234 /* Now, the first wcc attribute reply. */ 2235 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2236 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2237 if (*(tl + 1)) 2238 nd->nd_flag |= ND_NOMOREDATA; 2239 } 2240 error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, 2241 fstuff); 2242 /* and the second wcc attribute reply. */ 2243 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && 2244 !error) { 2245 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2246 if (*(tl + 1)) 2247 nd->nd_flag |= ND_NOMOREDATA; 2248 } 2249 if (!error) 2250 error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, 2251 NULL, tstuff); 2252 } 2253 if (nd->nd_repstat && !error) 2254 error = nd->nd_repstat; 2255nfsmout: 2256 mbuf_freem(nd->nd_mrep); 2257 return (error); 2258} 2259 2260/* 2261 * nfs hard link create rpc 2262 */ 2263APPLESTATIC int 2264nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, 2265 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2266 struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) 2267{ 2268 u_int32_t *tl; 2269 struct nfsrv_descript nfsd, *nd = &nfsd; 2270 nfsattrbit_t attrbits; 2271 int error = 0; 2272 2273 *attrflagp = 0; 2274 *dattrflagp = 0; 2275 if (namelen > NFS_MAXNAMLEN) 2276 return (ENAMETOOLONG); 2277 NFSCL_REQSTART(nd, NFSPROC_LINK, vp); 2278 if (nd->nd_flag & ND_NFSV4) { 2279 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2280 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2281 } 2282 (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, 2283 VTONFS(dvp)->n_fhp->nfh_len, 0); 2284 if (nd->nd_flag & ND_NFSV4) { 2285 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2286 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2287 NFSWCCATTR_ATTRBIT(&attrbits); 2288 (void) nfsrv_putattrbit(nd, &attrbits); 2289 nd->nd_flag |= ND_V4WCCATTR; 2290 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2291 *tl = txdr_unsigned(NFSV4OP_LINK); 2292 } 2293 (void) nfsm_strtom(nd, name, namelen); 2294 error = nfscl_request(nd, vp, p, cred, dstuff); 2295 if (error) 2296 return (error); 2297 if (nd->nd_flag & ND_NFSV3) { 2298 error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); 2299 if (!error) 2300 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2301 NULL, dstuff); 2302 } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2303 /* 2304 * First, parse out the PutFH and Getattr result. 2305 */ 2306 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2307 if (!(*(tl + 1))) 2308 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2309 if (*(tl + 1)) 2310 nd->nd_flag |= ND_NOMOREDATA; 2311 /* 2312 * Get the pre-op attributes. 2313 */ 2314 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2315 } 2316 if (nd->nd_repstat && !error) 2317 error = nd->nd_repstat; 2318nfsmout: 2319 mbuf_freem(nd->nd_mrep); 2320 return (error); 2321} 2322 2323/* 2324 * nfs symbolic link create rpc 2325 */ 2326APPLESTATIC int 2327nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, 2328 struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2329 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2330 int *dattrflagp, void *dstuff) 2331{ 2332 u_int32_t *tl; 2333 struct nfsrv_descript nfsd, *nd = &nfsd; 2334 struct nfsmount *nmp; 2335 int slen, error = 0; 2336 2337 *nfhpp = NULL; 2338 *attrflagp = 0; 2339 *dattrflagp = 0; 2340 nmp = VFSTONFS(vnode_mount(dvp)); 2341 slen = strlen(target); 2342 if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) 2343 return (ENAMETOOLONG); 2344 NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); 2345 if (nd->nd_flag & ND_NFSV4) { 2346 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2347 *tl = txdr_unsigned(NFLNK); 2348 (void) nfsm_strtom(nd, target, slen); 2349 } 2350 (void) nfsm_strtom(nd, name, namelen); 2351 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2352 nfscl_fillsattr(nd, vap, dvp, 0, 0); 2353 if (!(nd->nd_flag & ND_NFSV4)) 2354 (void) nfsm_strtom(nd, target, slen); 2355 if (nd->nd_flag & ND_NFSV2) 2356 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2357 error = nfscl_request(nd, dvp, p, cred, dstuff); 2358 if (error) 2359 return (error); 2360 if (nd->nd_flag & ND_NFSV4) 2361 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2362 if ((nd->nd_flag & ND_NFSV3) && !error) { 2363 if (!nd->nd_repstat) 2364 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2365 if (!error) 2366 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2367 NULL, dstuff); 2368 } 2369 if (nd->nd_repstat && !error) 2370 error = nd->nd_repstat; 2371 mbuf_freem(nd->nd_mrep); 2372 /* 2373 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2374 */ 2375 if (error == EEXIST) 2376 error = 0; 2377 return (error); 2378} 2379 2380/* 2381 * nfs make dir rpc 2382 */ 2383APPLESTATIC int 2384nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, 2385 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2386 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2387 int *dattrflagp, void *dstuff) 2388{ 2389 u_int32_t *tl; 2390 struct nfsrv_descript nfsd, *nd = &nfsd; 2391 nfsattrbit_t attrbits; 2392 int error = 0; 2393 2394 *nfhpp = NULL; 2395 *attrflagp = 0; 2396 *dattrflagp = 0; 2397 if (namelen > NFS_MAXNAMLEN) 2398 return (ENAMETOOLONG); 2399 NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); 2400 if (nd->nd_flag & ND_NFSV4) { 2401 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2402 *tl = txdr_unsigned(NFDIR); 2403 } 2404 (void) nfsm_strtom(nd, name, namelen); 2405 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2406 if (nd->nd_flag & ND_NFSV4) { 2407 NFSGETATTR_ATTRBIT(&attrbits); 2408 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2409 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2410 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2411 (void) nfsrv_putattrbit(nd, &attrbits); 2412 } 2413 error = nfscl_request(nd, dvp, p, cred, dstuff); 2414 if (error) 2415 return (error); 2416 if (nd->nd_flag & ND_NFSV4) 2417 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2418 if (!nd->nd_repstat && !error) { 2419 if (nd->nd_flag & ND_NFSV4) { 2420 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2421 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 2422 } 2423 if (!error) 2424 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2425 } 2426 if ((nd->nd_flag & ND_NFSV3) && !error) 2427 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2428 if (nd->nd_repstat && !error) 2429 error = nd->nd_repstat; 2430nfsmout: 2431 mbuf_freem(nd->nd_mrep); 2432 /* 2433 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry. 2434 */ 2435 if (error == EEXIST) 2436 error = 0; 2437 return (error); 2438} 2439 2440/* 2441 * nfs remove directory call 2442 */ 2443APPLESTATIC int 2444nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, 2445 NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) 2446{ 2447 struct nfsrv_descript nfsd, *nd = &nfsd; 2448 int error = 0; 2449 2450 *dattrflagp = 0; 2451 if (namelen > NFS_MAXNAMLEN) 2452 return (ENAMETOOLONG); 2453 NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); 2454 (void) nfsm_strtom(nd, name, namelen); 2455 error = nfscl_request(nd, dvp, p, cred, dstuff); 2456 if (error) 2457 return (error); 2458 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2459 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2460 if (nd->nd_repstat && !error) 2461 error = nd->nd_repstat; 2462 mbuf_freem(nd->nd_mrep); 2463 /* 2464 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2465 */ 2466 if (error == ENOENT) 2467 error = 0; 2468 return (error); 2469} 2470 2471/* 2472 * Readdir rpc. 2473 * Always returns with either uio_resid unchanged, if you are at the 2474 * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks 2475 * filled in. 2476 * I felt this would allow caching of directory blocks more easily 2477 * than returning a pertially filled block. 2478 * Directory offset cookies: 2479 * Oh my, what to do with them... 2480 * I can think of three ways to deal with them: 2481 * 1 - have the layer above these RPCs maintain a map between logical 2482 * directory byte offsets and the NFS directory offset cookies 2483 * 2 - pass the opaque directory offset cookies up into userland 2484 * and let the libc functions deal with them, via the system call 2485 * 3 - return them to userland in the "struct dirent", so future versions 2486 * of libc can use them and do whatever is necessary to amke things work 2487 * above these rpc calls, in the meantime 2488 * For now, I do #3 by "hiding" the directory offset cookies after the 2489 * d_name field in struct dirent. This is space inside d_reclen that 2490 * will be ignored by anything that doesn't know about them. 2491 * The directory offset cookies are filled in as the last 8 bytes of 2492 * each directory entry, after d_name. Someday, the userland libc 2493 * functions may be able to use these. In the meantime, it satisfies 2494 * OpenBSD's requirements for cookies being returned. 2495 * If expects the directory offset cookie for the read to be in uio_offset 2496 * and returns the one for the next entry after this directory block in 2497 * there, as well. 2498 */ 2499APPLESTATIC int 2500nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2501 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2502 int *eofp, void *stuff) 2503{ 2504 int len, left; 2505 struct dirent *dp = NULL; 2506 u_int32_t *tl; 2507 nfsquad_t cookie, ncookie; 2508 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2509 struct nfsnode *dnp = VTONFS(vp); 2510 struct nfsvattr nfsva; 2511 struct nfsrv_descript nfsd, *nd = &nfsd; 2512 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2513 int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; 2514 long dotfileid, dotdotfileid = 0; 2515 u_int32_t fakefileno = 0xffffffff, rderr; 2516 char *cp; 2517 nfsattrbit_t attrbits, dattrbits; 2518 u_int32_t *tl2 = NULL; 2519 size_t tresid; 2520 2521 KASSERT(uiop->uio_iovcnt == 1 && 2522 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2523 ("nfs readdirrpc bad uio")); 2524 2525 /* 2526 * There is no point in reading a lot more than uio_resid, however 2527 * adding one additional DIRBLKSIZ makes sense. Since uio_resid 2528 * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this 2529 * will never make readsize > nm_readdirsize. 2530 */ 2531 readsize = nmp->nm_readdirsize; 2532 if (readsize > uio_uio_resid(uiop)) 2533 readsize = uio_uio_resid(uiop) + DIRBLKSIZ; 2534 2535 *attrflagp = 0; 2536 if (eofp) 2537 *eofp = 0; 2538 tresid = uio_uio_resid(uiop); 2539 cookie.lval[0] = cookiep->nfsuquad[0]; 2540 cookie.lval[1] = cookiep->nfsuquad[1]; 2541 nd->nd_mrep = NULL; 2542 2543 /* 2544 * For NFSv4, first create the "." and ".." entries. 2545 */ 2546 if (NFSHASNFSV4(nmp)) { 2547 reqsize = 6 * NFSX_UNSIGNED; 2548 NFSGETATTR_ATTRBIT(&dattrbits); 2549 NFSZERO_ATTRBIT(&attrbits); 2550 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2551 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); 2552 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2553 NFSATTRBIT_MOUNTEDONFILEID)) { 2554 NFSSETBIT_ATTRBIT(&attrbits, 2555 NFSATTRBIT_MOUNTEDONFILEID); 2556 gotmnton = 1; 2557 } else { 2558 /* 2559 * Must fake it. Use the fileno, except when the 2560 * fsid is != to that of the directory. For that 2561 * case, generate a fake fileno that is not the same. 2562 */ 2563 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2564 gotmnton = 0; 2565 } 2566 2567 /* 2568 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2569 */ 2570 if (uiop->uio_offset == 0) { 2571#if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2572 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2573#else 2574 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2575#endif 2576 if (error) 2577 return (error); 2578 dotfileid = nfsva.na_fileid; 2579 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2580 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2581 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2582 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2583 (void) nfsrv_putattrbit(nd, &attrbits); 2584 error = nfscl_request(nd, vp, p, cred, stuff); 2585 if (error) 2586 return (error); 2587 if (nd->nd_repstat == 0) { 2588 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2589 len = fxdr_unsigned(int, *(tl + 2)); 2590 if (len > 0 && len <= NFSX_V4FHMAX) 2591 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2592 else 2593 error = EPERM; 2594 if (!error) { 2595 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2596 nfsva.na_mntonfileno = 0xffffffff; 2597 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2598 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2599 NULL, NULL, NULL, p, cred); 2600 if (error) { 2601 dotdotfileid = dotfileid; 2602 } else if (gotmnton) { 2603 if (nfsva.na_mntonfileno != 0xffffffff) 2604 dotdotfileid = nfsva.na_mntonfileno; 2605 else 2606 dotdotfileid = nfsva.na_fileid; 2607 } else if (nfsva.na_filesid[0] == 2608 dnp->n_vattr.na_filesid[0] && 2609 nfsva.na_filesid[1] == 2610 dnp->n_vattr.na_filesid[1]) { 2611 dotdotfileid = nfsva.na_fileid; 2612 } else { 2613 do { 2614 fakefileno--; 2615 } while (fakefileno == 2616 nfsva.na_fileid); 2617 dotdotfileid = fakefileno; 2618 } 2619 } 2620 } else if (nd->nd_repstat == NFSERR_NOENT) { 2621 /* 2622 * Lookupp returns NFSERR_NOENT when we are 2623 * at the root, so just use the current dir. 2624 */ 2625 nd->nd_repstat = 0; 2626 dotdotfileid = dotfileid; 2627 } else { 2628 error = nd->nd_repstat; 2629 } 2630 mbuf_freem(nd->nd_mrep); 2631 if (error) 2632 return (error); 2633 nd->nd_mrep = NULL; 2634 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2635 dp->d_type = DT_DIR; 2636 dp->d_fileno = dotfileid; 2637 dp->d_namlen = 1; 2638 dp->d_name[0] = '.'; 2639 dp->d_name[1] = '\0'; 2640 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2641 /* 2642 * Just make these offset cookie 0. 2643 */ 2644 tl = (u_int32_t *)&dp->d_name[4]; 2645 *tl++ = 0; 2646 *tl = 0; 2647 blksiz += dp->d_reclen; 2648 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2649 uiop->uio_offset += dp->d_reclen; 2650 uio_iov_base_add(uiop, dp->d_reclen); 2651 uio_iov_len_add(uiop, -(dp->d_reclen)); 2652 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2653 dp->d_type = DT_DIR; 2654 dp->d_fileno = dotdotfileid; 2655 dp->d_namlen = 2; 2656 dp->d_name[0] = '.'; 2657 dp->d_name[1] = '.'; 2658 dp->d_name[2] = '\0'; 2659 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2660 /* 2661 * Just make these offset cookie 0. 2662 */ 2663 tl = (u_int32_t *)&dp->d_name[4]; 2664 *tl++ = 0; 2665 *tl = 0; 2666 blksiz += dp->d_reclen; 2667 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2668 uiop->uio_offset += dp->d_reclen; 2669 uio_iov_base_add(uiop, dp->d_reclen); 2670 uio_iov_len_add(uiop, -(dp->d_reclen)); 2671 } 2672 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); 2673 } else { 2674 reqsize = 5 * NFSX_UNSIGNED; 2675 } 2676 2677 2678 /* 2679 * Loop around doing readdir rpc's of size readsize. 2680 * The stopping criteria is EOF or buffer full. 2681 */ 2682 while (more_dirs && bigenough) { 2683 *attrflagp = 0; 2684 NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); 2685 if (nd->nd_flag & ND_NFSV2) { 2686 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2687 *tl++ = cookie.lval[1]; 2688 *tl = txdr_unsigned(readsize); 2689 } else { 2690 NFSM_BUILD(tl, u_int32_t *, reqsize); 2691 *tl++ = cookie.lval[0]; 2692 *tl++ = cookie.lval[1]; 2693 if (cookie.qval == 0) { 2694 *tl++ = 0; 2695 *tl++ = 0; 2696 } else { 2697 NFSLOCKNODE(dnp); 2698 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2699 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2700 NFSUNLOCKNODE(dnp); 2701 } 2702 if (nd->nd_flag & ND_NFSV4) { 2703 *tl++ = txdr_unsigned(readsize); 2704 *tl = txdr_unsigned(readsize); 2705 (void) nfsrv_putattrbit(nd, &attrbits); 2706 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2707 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2708 (void) nfsrv_putattrbit(nd, &dattrbits); 2709 } else { 2710 *tl = txdr_unsigned(readsize); 2711 } 2712 } 2713 error = nfscl_request(nd, vp, p, cred, stuff); 2714 if (error) 2715 return (error); 2716 if (!(nd->nd_flag & ND_NFSV2)) { 2717 if (nd->nd_flag & ND_NFSV3) 2718 error = nfscl_postop_attr(nd, nap, attrflagp, 2719 stuff); 2720 if (!nd->nd_repstat && !error) { 2721 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 2722 NFSLOCKNODE(dnp); 2723 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2724 dnp->n_cookieverf.nfsuquad[1] = *tl; 2725 NFSUNLOCKNODE(dnp); 2726 } 2727 } 2728 if (nd->nd_repstat || error) { 2729 if (!error) 2730 error = nd->nd_repstat; 2731 goto nfsmout; 2732 } 2733 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2734 more_dirs = fxdr_unsigned(int, *tl); 2735 if (!more_dirs) 2736 tryformoredirs = 0; 2737 2738 /* loop thru the dir entries, doctoring them to 4bsd form */ 2739 while (more_dirs && bigenough) { 2740 if (nd->nd_flag & ND_NFSV4) { 2741 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2742 ncookie.lval[0] = *tl++; 2743 ncookie.lval[1] = *tl++; 2744 len = fxdr_unsigned(int, *tl); 2745 } else if (nd->nd_flag & ND_NFSV3) { 2746 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2747 nfsva.na_fileid = fxdr_hyper(tl); 2748 tl += 2; 2749 len = fxdr_unsigned(int, *tl); 2750 } else { 2751 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2752 nfsva.na_fileid = 2753 fxdr_unsigned(long, *tl++); 2754 len = fxdr_unsigned(int, *tl); 2755 } 2756 if (len <= 0 || len > NFS_MAXNAMLEN) { 2757 error = EBADRPC; 2758 goto nfsmout; 2759 } 2760 tlen = NFSM_RNDUP(len); 2761 if (tlen == len) 2762 tlen += 4; /* To ensure null termination */ 2763 left = DIRBLKSIZ - blksiz; 2764 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > left) { 2765 dp->d_reclen += left; 2766 uio_iov_base_add(uiop, left); 2767 uio_iov_len_add(uiop, -(left)); 2768 uio_uio_resid_add(uiop, -(left)); 2769 uiop->uio_offset += left; 2770 blksiz = 0; 2771 } 2772 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 2773 bigenough = 0; 2774 if (bigenough) { 2775 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2776 dp->d_namlen = len; 2777 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 2778 dp->d_type = DT_UNKNOWN; 2779 blksiz += dp->d_reclen; 2780 if (blksiz == DIRBLKSIZ) 2781 blksiz = 0; 2782 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 2783 uiop->uio_offset += DIRHDSIZ; 2784 uio_iov_base_add(uiop, DIRHDSIZ); 2785 uio_iov_len_add(uiop, -(DIRHDSIZ)); 2786 error = nfsm_mbufuio(nd, uiop, len); 2787 if (error) 2788 goto nfsmout; 2789 cp = CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2790 tlen -= len; 2791 *cp = '\0'; /* null terminate */ 2792 cp += tlen; /* points to cookie storage */ 2793 tl2 = (u_int32_t *)cp; 2794 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 2795 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 2796 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 2797 uiop->uio_offset += (tlen + NFSX_HYPER); 2798 } else { 2799 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2800 if (error) 2801 goto nfsmout; 2802 } 2803 if (nd->nd_flag & ND_NFSV4) { 2804 rderr = 0; 2805 nfsva.na_mntonfileno = 0xffffffff; 2806 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2807 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2808 NULL, NULL, &rderr, p, cred); 2809 if (error) 2810 goto nfsmout; 2811 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2812 } else if (nd->nd_flag & ND_NFSV3) { 2813 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2814 ncookie.lval[0] = *tl++; 2815 ncookie.lval[1] = *tl++; 2816 } else { 2817 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2818 ncookie.lval[0] = 0; 2819 ncookie.lval[1] = *tl++; 2820 } 2821 if (bigenough) { 2822 if (nd->nd_flag & ND_NFSV4) { 2823 if (rderr) { 2824 dp->d_fileno = 0; 2825 } else { 2826 if (gotmnton) { 2827 if (nfsva.na_mntonfileno != 0xffffffff) 2828 dp->d_fileno = nfsva.na_mntonfileno; 2829 else 2830 dp->d_fileno = nfsva.na_fileid; 2831 } else if (nfsva.na_filesid[0] == 2832 dnp->n_vattr.na_filesid[0] && 2833 nfsva.na_filesid[1] == 2834 dnp->n_vattr.na_filesid[1]) { 2835 dp->d_fileno = nfsva.na_fileid; 2836 } else { 2837 do { 2838 fakefileno--; 2839 } while (fakefileno == 2840 nfsva.na_fileid); 2841 dp->d_fileno = fakefileno; 2842 } 2843 dp->d_type = vtonfs_dtype(nfsva.na_type); 2844 } 2845 } else { 2846 dp->d_fileno = nfsva.na_fileid; 2847 } 2848 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 2849 ncookie.lval[0]; 2850 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 2851 ncookie.lval[1]; 2852 } 2853 more_dirs = fxdr_unsigned(int, *tl); 2854 } 2855 /* 2856 * If at end of rpc data, get the eof boolean 2857 */ 2858 if (!more_dirs) { 2859 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2860 eof = fxdr_unsigned(int, *tl); 2861 if (tryformoredirs) 2862 more_dirs = !eof; 2863 if (nd->nd_flag & ND_NFSV4) { 2864 error = nfscl_postop_attr(nd, nap, attrflagp, 2865 stuff); 2866 if (error) 2867 goto nfsmout; 2868 } 2869 } 2870 mbuf_freem(nd->nd_mrep); 2871 nd->nd_mrep = NULL; 2872 } 2873 /* 2874 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 2875 * by increasing d_reclen for the last record. 2876 */ 2877 if (blksiz > 0) { 2878 left = DIRBLKSIZ - blksiz; 2879 dp->d_reclen += left; 2880 uio_iov_base_add(uiop, left); 2881 uio_iov_len_add(uiop, -(left)); 2882 uio_uio_resid_add(uiop, -(left)); 2883 uiop->uio_offset += left; 2884 } 2885 2886 /* 2887 * If returning no data, assume end of file. 2888 * If not bigenough, return not end of file, since you aren't 2889 * returning all the data 2890 * Otherwise, return the eof flag from the server. 2891 */ 2892 if (eofp) { 2893 if (tresid == ((size_t)(uio_uio_resid(uiop)))) 2894 *eofp = 1; 2895 else if (!bigenough) 2896 *eofp = 0; 2897 else 2898 *eofp = eof; 2899 } 2900 2901 /* 2902 * Add extra empty records to any remaining DIRBLKSIZ chunks. 2903 */ 2904 while (uio_uio_resid(uiop) > 0 && ((size_t)(uio_uio_resid(uiop))) != tresid) { 2905 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2906 dp->d_type = DT_UNKNOWN; 2907 dp->d_fileno = 0; 2908 dp->d_namlen = 0; 2909 dp->d_name[0] = '\0'; 2910 tl = (u_int32_t *)&dp->d_name[4]; 2911 *tl++ = cookie.lval[0]; 2912 *tl = cookie.lval[1]; 2913 dp->d_reclen = DIRBLKSIZ; 2914 uio_iov_base_add(uiop, DIRBLKSIZ); 2915 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 2916 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 2917 uiop->uio_offset += DIRBLKSIZ; 2918 } 2919 2920nfsmout: 2921 if (nd->nd_mrep != NULL) 2922 mbuf_freem(nd->nd_mrep); 2923 return (error); 2924} 2925 2926#ifndef APPLE 2927/* 2928 * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). 2929 * (Also used for NFS V4 when mount flag set.) 2930 * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) 2931 */ 2932APPLESTATIC int 2933nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2934 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2935 int *eofp, void *stuff) 2936{ 2937 int len, left; 2938 struct dirent *dp = NULL; 2939 u_int32_t *tl; 2940 vnode_t newvp = NULLVP; 2941 struct nfsrv_descript nfsd, *nd = &nfsd; 2942 struct nameidata nami, *ndp = &nami; 2943 struct componentname *cnp = &ndp->ni_cnd; 2944 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2945 struct nfsnode *dnp = VTONFS(vp), *np; 2946 struct nfsvattr nfsva; 2947 struct nfsfh *nfhp; 2948 nfsquad_t cookie, ncookie; 2949 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2950 int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; 2951 int isdotdot = 0, unlocknewvp = 0; 2952 long dotfileid, dotdotfileid = 0, fileno = 0; 2953 char *cp; 2954 nfsattrbit_t attrbits, dattrbits; 2955 size_t tresid; 2956 u_int32_t *tl2 = NULL, fakefileno = 0xffffffff, rderr; 2957 2958 KASSERT(uiop->uio_iovcnt == 1 && 2959 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2960 ("nfs readdirplusrpc bad uio")); 2961 *attrflagp = 0; 2962 if (eofp != NULL) 2963 *eofp = 0; 2964 ndp->ni_dvp = vp; 2965 nd->nd_mrep = NULL; 2966 cookie.lval[0] = cookiep->nfsuquad[0]; 2967 cookie.lval[1] = cookiep->nfsuquad[1]; 2968 tresid = uio_uio_resid(uiop); 2969 2970 /* 2971 * For NFSv4, first create the "." and ".." entries. 2972 */ 2973 if (NFSHASNFSV4(nmp)) { 2974 NFSGETATTR_ATTRBIT(&dattrbits); 2975 NFSZERO_ATTRBIT(&attrbits); 2976 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2977 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2978 NFSATTRBIT_MOUNTEDONFILEID)) { 2979 NFSSETBIT_ATTRBIT(&attrbits, 2980 NFSATTRBIT_MOUNTEDONFILEID); 2981 gotmnton = 1; 2982 } else { 2983 /* 2984 * Must fake it. Use the fileno, except when the 2985 * fsid is != to that of the directory. For that 2986 * case, generate a fake fileno that is not the same. 2987 */ 2988 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2989 gotmnton = 0; 2990 } 2991 2992 /* 2993 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2994 */ 2995 if (uiop->uio_offset == 0) { 2996#if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2997 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2998#else 2999 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 3000#endif 3001 if (error) 3002 return (error); 3003 dotfileid = nfsva.na_fileid; 3004 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 3005 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3006 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 3007 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3008 (void) nfsrv_putattrbit(nd, &attrbits); 3009 error = nfscl_request(nd, vp, p, cred, stuff); 3010 if (error) 3011 return (error); 3012 if (nd->nd_repstat == 0) { 3013 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3014 len = fxdr_unsigned(int, *(tl + 2)); 3015 if (len > 0 && len <= NFSX_V4FHMAX) 3016 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3017 else 3018 error = EPERM; 3019 if (!error) { 3020 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 3021 nfsva.na_mntonfileno = 0xffffffff; 3022 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 3023 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3024 NULL, NULL, NULL, p, cred); 3025 if (error) { 3026 dotdotfileid = dotfileid; 3027 } else if (gotmnton) { 3028 if (nfsva.na_mntonfileno != 0xffffffff) 3029 dotdotfileid = nfsva.na_mntonfileno; 3030 else 3031 dotdotfileid = nfsva.na_fileid; 3032 } else if (nfsva.na_filesid[0] == 3033 dnp->n_vattr.na_filesid[0] && 3034 nfsva.na_filesid[1] == 3035 dnp->n_vattr.na_filesid[1]) { 3036 dotdotfileid = nfsva.na_fileid; 3037 } else { 3038 do { 3039 fakefileno--; 3040 } while (fakefileno == 3041 nfsva.na_fileid); 3042 dotdotfileid = fakefileno; 3043 } 3044 } 3045 } else if (nd->nd_repstat == NFSERR_NOENT) { 3046 /* 3047 * Lookupp returns NFSERR_NOENT when we are 3048 * at the root, so just use the current dir. 3049 */ 3050 nd->nd_repstat = 0; 3051 dotdotfileid = dotfileid; 3052 } else { 3053 error = nd->nd_repstat; 3054 } 3055 mbuf_freem(nd->nd_mrep); 3056 if (error) 3057 return (error); 3058 nd->nd_mrep = NULL; 3059 dp = (struct dirent *)uio_iov_base(uiop); 3060 dp->d_type = DT_DIR; 3061 dp->d_fileno = dotfileid; 3062 dp->d_namlen = 1; 3063 dp->d_name[0] = '.'; 3064 dp->d_name[1] = '\0'; 3065 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3066 /* 3067 * Just make these offset cookie 0. 3068 */ 3069 tl = (u_int32_t *)&dp->d_name[4]; 3070 *tl++ = 0; 3071 *tl = 0; 3072 blksiz += dp->d_reclen; 3073 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3074 uiop->uio_offset += dp->d_reclen; 3075 uio_iov_base_add(uiop, dp->d_reclen); 3076 uio_iov_len_add(uiop, -(dp->d_reclen)); 3077 dp = (struct dirent *)uio_iov_base(uiop); 3078 dp->d_type = DT_DIR; 3079 dp->d_fileno = dotdotfileid; 3080 dp->d_namlen = 2; 3081 dp->d_name[0] = '.'; 3082 dp->d_name[1] = '.'; 3083 dp->d_name[2] = '\0'; 3084 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3085 /* 3086 * Just make these offset cookie 0. 3087 */ 3088 tl = (u_int32_t *)&dp->d_name[4]; 3089 *tl++ = 0; 3090 *tl = 0; 3091 blksiz += dp->d_reclen; 3092 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3093 uiop->uio_offset += dp->d_reclen; 3094 uio_iov_base_add(uiop, dp->d_reclen); 3095 uio_iov_len_add(uiop, -(dp->d_reclen)); 3096 } 3097 NFSREADDIRPLUS_ATTRBIT(&attrbits); 3098 if (gotmnton) 3099 NFSSETBIT_ATTRBIT(&attrbits, 3100 NFSATTRBIT_MOUNTEDONFILEID); 3101 } 3102 3103 /* 3104 * Loop around doing readdir rpc's of size nm_readdirsize. 3105 * The stopping criteria is EOF or buffer full. 3106 */ 3107 while (more_dirs && bigenough) { 3108 *attrflagp = 0; 3109 NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); 3110 NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 3111 *tl++ = cookie.lval[0]; 3112 *tl++ = cookie.lval[1]; 3113 if (cookie.qval == 0) { 3114 *tl++ = 0; 3115 *tl++ = 0; 3116 } else { 3117 NFSLOCKNODE(dnp); 3118 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 3119 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 3120 NFSUNLOCKNODE(dnp); 3121 } 3122 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 3123 *tl = txdr_unsigned(nmp->nm_readdirsize); 3124 if (nd->nd_flag & ND_NFSV4) { 3125 (void) nfsrv_putattrbit(nd, &attrbits); 3126 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3127 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3128 (void) nfsrv_putattrbit(nd, &dattrbits); 3129 } 3130 error = nfscl_request(nd, vp, p, cred, stuff); 3131 if (error) 3132 return (error); 3133 if (nd->nd_flag & ND_NFSV3) 3134 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3135 if (nd->nd_repstat || error) { 3136 if (!error) 3137 error = nd->nd_repstat; 3138 goto nfsmout; 3139 } 3140 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3141 NFSLOCKNODE(dnp); 3142 dnp->n_cookieverf.nfsuquad[0] = *tl++; 3143 dnp->n_cookieverf.nfsuquad[1] = *tl++; 3144 NFSUNLOCKNODE(dnp); 3145 more_dirs = fxdr_unsigned(int, *tl); 3146 if (!more_dirs) 3147 tryformoredirs = 0; 3148 3149 /* loop thru the dir entries, doctoring them to 4bsd form */ 3150 while (more_dirs && bigenough) { 3151 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3152 if (nd->nd_flag & ND_NFSV4) { 3153 ncookie.lval[0] = *tl++; 3154 ncookie.lval[1] = *tl++; 3155 } else { 3156 fileno = fxdr_unsigned(long, *++tl); 3157 tl++; 3158 } 3159 len = fxdr_unsigned(int, *tl); 3160 if (len <= 0 || len > NFS_MAXNAMLEN) { 3161 error = EBADRPC; 3162 goto nfsmout; 3163 } 3164 tlen = NFSM_RNDUP(len); 3165 if (tlen == len) 3166 tlen += 4; /* To ensure null termination */ 3167 left = DIRBLKSIZ - blksiz; 3168 if ((tlen + DIRHDSIZ + NFSX_HYPER) > left) { 3169 dp->d_reclen += left; 3170 uio_iov_base_add(uiop, left); 3171 uio_iov_len_add(uiop, -(left)); 3172 uio_uio_resid_add(uiop, -(left)); 3173 uiop->uio_offset += left; 3174 blksiz = 0; 3175 } 3176 if ((tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 3177 bigenough = 0; 3178 if (bigenough) { 3179 dp = (struct dirent *)uio_iov_base(uiop); 3180 dp->d_namlen = len; 3181 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 3182 dp->d_type = DT_UNKNOWN; 3183 blksiz += dp->d_reclen; 3184 if (blksiz == DIRBLKSIZ) 3185 blksiz = 0; 3186 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 3187 uiop->uio_offset += DIRHDSIZ; 3188 uio_iov_base_add(uiop, DIRHDSIZ); 3189 uio_iov_len_add(uiop, -(DIRHDSIZ)); 3190 cnp->cn_nameptr = uio_iov_base(uiop); 3191 cnp->cn_namelen = len; 3192 NFSCNHASHZERO(cnp); 3193 error = nfsm_mbufuio(nd, uiop, len); 3194 if (error) 3195 goto nfsmout; 3196 cp = uio_iov_base(uiop); 3197 tlen -= len; 3198 *cp = '\0'; 3199 cp += tlen; /* points to cookie storage */ 3200 tl2 = (u_int32_t *)cp; 3201 if (len == 2 && cnp->cn_nameptr[0] == '.' && 3202 cnp->cn_nameptr[1] == '.') 3203 isdotdot = 1; 3204 else 3205 isdotdot = 0; 3206 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 3207 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 3208 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 3209 uiop->uio_offset += (tlen + NFSX_HYPER); 3210 } else { 3211 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3212 if (error) 3213 goto nfsmout; 3214 } 3215 nfhp = NULL; 3216 if (nd->nd_flag & ND_NFSV3) { 3217 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3218 ncookie.lval[0] = *tl++; 3219 ncookie.lval[1] = *tl++; 3220 attrflag = fxdr_unsigned(int, *tl); 3221 if (attrflag) { 3222 error = nfsm_loadattr(nd, &nfsva); 3223 if (error) 3224 goto nfsmout; 3225 } 3226 NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); 3227 if (*tl) { 3228 error = nfsm_getfh(nd, &nfhp); 3229 if (error) 3230 goto nfsmout; 3231 } 3232 if (!attrflag && nfhp != NULL) { 3233 FREE((caddr_t)nfhp, M_NFSFH); 3234 nfhp = NULL; 3235 } 3236 } else { 3237 rderr = 0; 3238 nfsva.na_mntonfileno = 0xffffffff; 3239 error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, 3240 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3241 NULL, NULL, &rderr, p, cred); 3242 if (error) 3243 goto nfsmout; 3244 } 3245 3246 if (bigenough) { 3247 if (nd->nd_flag & ND_NFSV4) { 3248 if (rderr) { 3249 dp->d_fileno = 0; 3250 } else if (gotmnton) { 3251 if (nfsva.na_mntonfileno != 0xffffffff) 3252 dp->d_fileno = nfsva.na_mntonfileno; 3253 else 3254 dp->d_fileno = nfsva.na_fileid; 3255 } else if (nfsva.na_filesid[0] == 3256 dnp->n_vattr.na_filesid[0] && 3257 nfsva.na_filesid[1] == 3258 dnp->n_vattr.na_filesid[1]) { 3259 dp->d_fileno = nfsva.na_fileid; 3260 } else { 3261 do { 3262 fakefileno--; 3263 } while (fakefileno == 3264 nfsva.na_fileid); 3265 dp->d_fileno = fakefileno; 3266 } 3267 } else { 3268 dp->d_fileno = fileno; 3269 } 3270 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 3271 ncookie.lval[0]; 3272 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 3273 ncookie.lval[1]; 3274 3275 if (nfhp != NULL) { 3276 if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, 3277 dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { 3278 VREF(vp); 3279 newvp = vp; 3280 unlocknewvp = 0; 3281 FREE((caddr_t)nfhp, M_NFSFH); 3282 np = dnp; 3283 } else if (isdotdot != 0) { 3284 /* 3285 * Skip doing a nfscl_nget() call for "..". 3286 * There's a race between acquiring the nfs 3287 * node here and lookups that look for the 3288 * directory being read (in the parent). 3289 * It would try to get a lock on ".." here, 3290 * owning the lock on the directory being 3291 * read. Lookup will hold the lock on ".." 3292 * and try to acquire the lock on the 3293 * directory being read. 3294 * If the directory is unlocked/relocked, 3295 * then there is a LOR with the buflock 3296 * vp is relocked. 3297 */ 3298 free(nfhp, M_NFSFH); 3299 } else { 3300 error = nfscl_nget(vnode_mount(vp), vp, 3301 nfhp, cnp, p, &np, NULL, LK_EXCLUSIVE); 3302 if (!error) { 3303 newvp = NFSTOV(np); 3304 unlocknewvp = 1; 3305 } 3306 } 3307 nfhp = NULL; 3308 if (newvp != NULLVP) { 3309 error = nfscl_loadattrcache(&newvp, 3310 &nfsva, NULL, NULL, 0, 0); 3311 if (error) { 3312 if (unlocknewvp) 3313 vput(newvp); 3314 else 3315 vrele(newvp); 3316 goto nfsmout; 3317 } 3318 dp->d_type = 3319 vtonfs_dtype(np->n_vattr.na_type); 3320 ndp->ni_vp = newvp; 3321 NFSCNHASH(cnp, HASHINIT); 3322 if (cnp->cn_namelen <= NCHNAMLEN) { 3323 np->n_ctime = np->n_vattr.na_ctime; 3324 cache_enter(ndp->ni_dvp,ndp->ni_vp,cnp); 3325 } 3326 if (unlocknewvp) 3327 vput(newvp); 3328 else 3329 vrele(newvp); 3330 newvp = NULLVP; 3331 } 3332 } 3333 } else if (nfhp != NULL) { 3334 FREE((caddr_t)nfhp, M_NFSFH); 3335 } 3336 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3337 more_dirs = fxdr_unsigned(int, *tl); 3338 } 3339 /* 3340 * If at end of rpc data, get the eof boolean 3341 */ 3342 if (!more_dirs) { 3343 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3344 eof = fxdr_unsigned(int, *tl); 3345 if (tryformoredirs) 3346 more_dirs = !eof; 3347 if (nd->nd_flag & ND_NFSV4) { 3348 error = nfscl_postop_attr(nd, nap, attrflagp, 3349 stuff); 3350 if (error) 3351 goto nfsmout; 3352 } 3353 } 3354 mbuf_freem(nd->nd_mrep); 3355 nd->nd_mrep = NULL; 3356 } 3357 /* 3358 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 3359 * by increasing d_reclen for the last record. 3360 */ 3361 if (blksiz > 0) { 3362 left = DIRBLKSIZ - blksiz; 3363 dp->d_reclen += left; 3364 uio_iov_base_add(uiop, left); 3365 uio_iov_len_add(uiop, -(left)); 3366 uio_uio_resid_add(uiop, -(left)); 3367 uiop->uio_offset += left; 3368 } 3369 3370 /* 3371 * If returning no data, assume end of file. 3372 * If not bigenough, return not end of file, since you aren't 3373 * returning all the data 3374 * Otherwise, return the eof flag from the server. 3375 */ 3376 if (eofp != NULL) { 3377 if (tresid == uio_uio_resid(uiop)) 3378 *eofp = 1; 3379 else if (!bigenough) 3380 *eofp = 0; 3381 else 3382 *eofp = eof; 3383 } 3384 3385 /* 3386 * Add extra empty records to any remaining DIRBLKSIZ chunks. 3387 */ 3388 while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { 3389 dp = (struct dirent *)uio_iov_base(uiop); 3390 dp->d_type = DT_UNKNOWN; 3391 dp->d_fileno = 0; 3392 dp->d_namlen = 0; 3393 dp->d_name[0] = '\0'; 3394 tl = (u_int32_t *)&dp->d_name[4]; 3395 *tl++ = cookie.lval[0]; 3396 *tl = cookie.lval[1]; 3397 dp->d_reclen = DIRBLKSIZ; 3398 uio_iov_base_add(uiop, DIRBLKSIZ); 3399 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 3400 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 3401 uiop->uio_offset += DIRBLKSIZ; 3402 } 3403 3404nfsmout: 3405 if (nd->nd_mrep != NULL) 3406 mbuf_freem(nd->nd_mrep); 3407 return (error); 3408} 3409#endif /* !APPLE */ 3410 3411/* 3412 * Nfs commit rpc 3413 */ 3414APPLESTATIC int 3415nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, 3416 NFSPROC_T *p, u_char *verfp, struct nfsvattr *nap, int *attrflagp, 3417 void *stuff) 3418{ 3419 u_int32_t *tl; 3420 struct nfsrv_descript nfsd, *nd = &nfsd; 3421 nfsattrbit_t attrbits; 3422 int error; 3423 3424 *attrflagp = 0; 3425 NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); 3426 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3427 txdr_hyper(offset, tl); 3428 tl += 2; 3429 *tl = txdr_unsigned(cnt); 3430 if (nd->nd_flag & ND_NFSV4) { 3431 /* 3432 * And do a Getattr op. 3433 */ 3434 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3435 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3436 NFSGETATTR_ATTRBIT(&attrbits); 3437 (void) nfsrv_putattrbit(nd, &attrbits); 3438 } 3439 error = nfscl_request(nd, vp, p, cred, stuff); 3440 if (error) 3441 return (error); 3442 error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); 3443 if (!error && !nd->nd_repstat) { 3444 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3445 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 3446 if (nd->nd_flag & ND_NFSV4) 3447 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3448 } 3449nfsmout: 3450 if (!error && nd->nd_repstat) 3451 error = nd->nd_repstat; 3452 mbuf_freem(nd->nd_mrep); 3453 return (error); 3454} 3455 3456/* 3457 * NFS byte range lock rpc. 3458 * (Mostly just calls one of the three lower level RPC routines.) 3459 */ 3460APPLESTATIC int 3461nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, 3462 int reclaim, struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3463{ 3464 struct nfscllockowner *lp; 3465 struct nfsclclient *clp; 3466 struct nfsfh *nfhp; 3467 struct nfsrv_descript nfsd, *nd = &nfsd; 3468 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 3469 u_int64_t off, len; 3470 off_t start, end; 3471 u_int32_t clidrev = 0; 3472 int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; 3473 int callcnt, dorpc; 3474 3475 /* 3476 * Convert the flock structure into a start and end and do POSIX 3477 * bounds checking. 3478 */ 3479 switch (fl->l_whence) { 3480 case SEEK_SET: 3481 case SEEK_CUR: 3482 /* 3483 * Caller is responsible for adding any necessary offset 3484 * when SEEK_CUR is used. 3485 */ 3486 start = fl->l_start; 3487 off = fl->l_start; 3488 break; 3489 case SEEK_END: 3490 start = size + fl->l_start; 3491 off = size + fl->l_start; 3492 break; 3493 default: 3494 return (EINVAL); 3495 }; 3496 if (start < 0) 3497 return (EINVAL); 3498 if (fl->l_len != 0) { 3499 end = start + fl->l_len - 1; 3500 if (end < start) 3501 return (EINVAL); 3502 } 3503 3504 len = fl->l_len; 3505 if (len == 0) 3506 len = NFS64BITSSET; 3507 retrycnt = 0; 3508 do { 3509 nd->nd_repstat = 0; 3510 if (op == F_GETLK) { 3511 error = nfscl_getcl(vp, cred, p, &clp); 3512 if (error) 3513 return (error); 3514 error = nfscl_lockt(vp, clp, off, len, fl, p, id, flags); 3515 if (!error) { 3516 clidrev = clp->nfsc_clientidrev; 3517 error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, 3518 p, id, flags); 3519 } else if (error == -1) { 3520 error = 0; 3521 } 3522 nfscl_clientrelease(clp); 3523 } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { 3524 /* 3525 * We must loop around for all lockowner cases. 3526 */ 3527 callcnt = 0; 3528 error = nfscl_getcl(vp, cred, p, &clp); 3529 if (error) 3530 return (error); 3531 do { 3532 error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, 3533 clp, id, flags, &lp, &dorpc); 3534 /* 3535 * If it returns a NULL lp, we're done. 3536 */ 3537 if (lp == NULL) { 3538 if (callcnt == 0) 3539 nfscl_clientrelease(clp); 3540 else 3541 nfscl_releasealllocks(clp, vp, p, id, flags); 3542 return (error); 3543 } 3544 if (nmp->nm_clp != NULL) 3545 clidrev = nmp->nm_clp->nfsc_clientidrev; 3546 else 3547 clidrev = 0; 3548 /* 3549 * If the server doesn't support Posix lock semantics, 3550 * only allow locks on the entire file, since it won't 3551 * handle overlapping byte ranges. 3552 * There might still be a problem when a lock 3553 * upgrade/downgrade (read<->write) occurs, since the 3554 * server "might" expect an unlock first? 3555 */ 3556 if (dorpc && (lp->nfsl_open->nfso_posixlock || 3557 (off == 0 && len == NFS64BITSSET))) { 3558 /* 3559 * Since the lock records will go away, we must 3560 * wait for grace and delay here. 3561 */ 3562 do { 3563 error = nfsrpc_locku(nd, nmp, lp, off, len, 3564 NFSV4LOCKT_READ, cred, p, 0); 3565 if ((nd->nd_repstat == NFSERR_GRACE || 3566 nd->nd_repstat == NFSERR_DELAY) && 3567 error == 0) 3568 (void) nfs_catnap(PZERO, (int)nd->nd_repstat, 3569 "nfs_advlock"); 3570 } while ((nd->nd_repstat == NFSERR_GRACE || 3571 nd->nd_repstat == NFSERR_DELAY) && error == 0); 3572 } 3573 callcnt++; 3574 } while (error == 0 && nd->nd_repstat == 0); 3575 nfscl_releasealllocks(clp, vp, p, id, flags); 3576 } else if (op == F_SETLK) { 3577 error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, 3578 NULL, 0, id, flags, NULL, NULL, &lp, &newone, &donelocally); 3579 if (error || donelocally) { 3580 return (error); 3581 } 3582 if (nmp->nm_clp != NULL) 3583 clidrev = nmp->nm_clp->nfsc_clientidrev; 3584 else 3585 clidrev = 0; 3586 nfhp = VTONFS(vp)->n_fhp; 3587 if (!lp->nfsl_open->nfso_posixlock && 3588 (off != 0 || len != NFS64BITSSET)) { 3589 error = EINVAL; 3590 } else { 3591 error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, 3592 nfhp->nfh_len, lp, newone, reclaim, off, 3593 len, fl->l_type, cred, p, 0); 3594 } 3595 if (!error) 3596 error = nd->nd_repstat; 3597 nfscl_lockrelease(lp, error, newone); 3598 } else { 3599 error = EINVAL; 3600 } 3601 if (!error) 3602 error = nd->nd_repstat; 3603 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 3604 error == NFSERR_STALEDONTRECOVER || 3605 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY) { 3606 (void) nfs_catnap(PZERO, error, "nfs_advlock"); 3607 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 3608 && clidrev != 0) { 3609 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 3610 retrycnt++; 3611 } 3612 } while (error == NFSERR_GRACE || 3613 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || 3614 error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || 3615 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 3616 expireret == 0 && clidrev != 0 && retrycnt < 4)); 3617 if (error && retrycnt >= 4) 3618 error = EIO; 3619 return (error); 3620} 3621 3622/* 3623 * The lower level routine for the LockT case. 3624 */ 3625APPLESTATIC int 3626nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, 3627 struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, 3628 struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3629{ 3630 u_int32_t *tl; 3631 int error, type, size; 3632 u_int8_t own[NFSV4CL_LOCKNAMELEN]; 3633 3634 NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); 3635 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3636 if (fl->l_type == F_RDLCK) 3637 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3638 else 3639 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3640 txdr_hyper(off, tl); 3641 tl += 2; 3642 txdr_hyper(len, tl); 3643 tl += 2; 3644 *tl++ = clp->nfsc_clientid.lval[0]; 3645 *tl = clp->nfsc_clientid.lval[1]; 3646 nfscl_filllockowner(id, own, flags); 3647 (void) nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN); 3648 error = nfscl_request(nd, vp, p, cred, NULL); 3649 if (error) 3650 return (error); 3651 if (nd->nd_repstat == 0) { 3652 fl->l_type = F_UNLCK; 3653 } else if (nd->nd_repstat == NFSERR_DENIED) { 3654 nd->nd_repstat = 0; 3655 fl->l_whence = SEEK_SET; 3656 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3657 fl->l_start = fxdr_hyper(tl); 3658 tl += 2; 3659 len = fxdr_hyper(tl); 3660 tl += 2; 3661 if (len == NFS64BITSSET) 3662 fl->l_len = 0; 3663 else 3664 fl->l_len = len; 3665 type = fxdr_unsigned(int, *tl++); 3666 if (type == NFSV4LOCKT_WRITE) 3667 fl->l_type = F_WRLCK; 3668 else 3669 fl->l_type = F_RDLCK; 3670 /* 3671 * XXX For now, I have no idea what to do with the 3672 * conflicting lock_owner, so I'll just set the pid == 0 3673 * and skip over the lock_owner. 3674 */ 3675 fl->l_pid = (pid_t)0; 3676 tl += 2; 3677 size = fxdr_unsigned(int, *tl); 3678 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3679 error = EBADRPC; 3680 if (!error) 3681 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3682 } else if (nd->nd_repstat == NFSERR_STALECLIENTID) 3683 nfscl_initiate_recovery(clp); 3684nfsmout: 3685 mbuf_freem(nd->nd_mrep); 3686 return (error); 3687} 3688 3689/* 3690 * Lower level function that performs the LockU RPC. 3691 */ 3692static int 3693nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, 3694 struct nfscllockowner *lp, u_int64_t off, u_int64_t len, 3695 u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) 3696{ 3697 u_int32_t *tl; 3698 int error; 3699 3700 nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, 3701 lp->nfsl_open->nfso_fhlen, NULL); 3702 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3703 *tl++ = txdr_unsigned(type); 3704 *tl = txdr_unsigned(lp->nfsl_seqid); 3705 if (nfstest_outofseq && 3706 (arc4random() % nfstest_outofseq) == 0) 3707 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3708 tl++; 3709 *tl++ = lp->nfsl_stateid.seqid; 3710 *tl++ = lp->nfsl_stateid.other[0]; 3711 *tl++ = lp->nfsl_stateid.other[1]; 3712 *tl++ = lp->nfsl_stateid.other[2]; 3713 txdr_hyper(off, tl); 3714 tl += 2; 3715 txdr_hyper(len, tl); 3716 if (syscred) 3717 nd->nd_flag |= ND_USEGSSNAME; 3718 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3719 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3720 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3721 if (error) 3722 return (error); 3723 if (nd->nd_repstat == 0) { 3724 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3725 lp->nfsl_stateid.seqid = *tl++; 3726 lp->nfsl_stateid.other[0] = *tl++; 3727 lp->nfsl_stateid.other[1] = *tl++; 3728 lp->nfsl_stateid.other[2] = *tl; 3729 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3730 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3731nfsmout: 3732 mbuf_freem(nd->nd_mrep); 3733 return (error); 3734} 3735 3736/* 3737 * The actual Lock RPC. 3738 */ 3739APPLESTATIC int 3740nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, 3741 u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, 3742 int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, 3743 NFSPROC_T *p, int syscred) 3744{ 3745 u_int32_t *tl; 3746 int error, size; 3747 3748 nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL); 3749 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3750 if (type == F_RDLCK) 3751 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3752 else 3753 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3754 *tl++ = txdr_unsigned(reclaim); 3755 txdr_hyper(off, tl); 3756 tl += 2; 3757 txdr_hyper(len, tl); 3758 tl += 2; 3759 if (newone) { 3760 *tl = newnfs_true; 3761 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3762 2 * NFSX_UNSIGNED + NFSX_HYPER); 3763 *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); 3764 *tl++ = lp->nfsl_open->nfso_stateid.seqid; 3765 *tl++ = lp->nfsl_open->nfso_stateid.other[0]; 3766 *tl++ = lp->nfsl_open->nfso_stateid.other[1]; 3767 *tl++ = lp->nfsl_open->nfso_stateid.other[2]; 3768 *tl++ = txdr_unsigned(lp->nfsl_seqid); 3769 *tl++ = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 3770 *tl = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 3771 (void) nfsm_strtom(nd, lp->nfsl_owner, NFSV4CL_LOCKNAMELEN); 3772 } else { 3773 *tl = newnfs_false; 3774 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3775 *tl++ = lp->nfsl_stateid.seqid; 3776 *tl++ = lp->nfsl_stateid.other[0]; 3777 *tl++ = lp->nfsl_stateid.other[1]; 3778 *tl++ = lp->nfsl_stateid.other[2]; 3779 *tl = txdr_unsigned(lp->nfsl_seqid); 3780 if (nfstest_outofseq && 3781 (arc4random() % nfstest_outofseq) == 0) 3782 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3783 } 3784 if (syscred) 3785 nd->nd_flag |= ND_USEGSSNAME; 3786 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 3787 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3788 if (error) 3789 return (error); 3790 if (newone) 3791 NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); 3792 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3793 if (nd->nd_repstat == 0) { 3794 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3795 lp->nfsl_stateid.seqid = *tl++; 3796 lp->nfsl_stateid.other[0] = *tl++; 3797 lp->nfsl_stateid.other[1] = *tl++; 3798 lp->nfsl_stateid.other[2] = *tl; 3799 } else if (nd->nd_repstat == NFSERR_DENIED) { 3800 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3801 size = fxdr_unsigned(int, *(tl + 7)); 3802 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3803 error = EBADRPC; 3804 if (!error) 3805 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3806 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3807 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3808nfsmout: 3809 mbuf_freem(nd->nd_mrep); 3810 return (error); 3811} 3812 3813/* 3814 * nfs statfs rpc 3815 * (always called with the vp for the mount point) 3816 */ 3817APPLESTATIC int 3818nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, 3819 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3820 void *stuff) 3821{ 3822 u_int32_t *tl = NULL; 3823 struct nfsrv_descript nfsd, *nd = &nfsd; 3824 struct nfsmount *nmp; 3825 nfsattrbit_t attrbits; 3826 int error; 3827 3828 *attrflagp = 0; 3829 nmp = VFSTONFS(vnode_mount(vp)); 3830 if (NFSHASNFSV4(nmp)) { 3831 /* 3832 * For V4, you actually do a getattr. 3833 */ 3834 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3835 NFSSTATFS_GETATTRBIT(&attrbits); 3836 (void) nfsrv_putattrbit(nd, &attrbits); 3837 nd->nd_flag |= ND_USEGSSNAME; 3838 error = nfscl_request(nd, vp, p, cred, stuff); 3839 if (error) 3840 return (error); 3841 if (nd->nd_repstat == 0) { 3842 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3843 NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, 3844 cred); 3845 if (!error) { 3846 nmp->nm_fsid[0] = nap->na_filesid[0]; 3847 nmp->nm_fsid[1] = nap->na_filesid[1]; 3848 NFSSETHASSETFSID(nmp); 3849 *attrflagp = 1; 3850 } 3851 } else { 3852 error = nd->nd_repstat; 3853 } 3854 if (error) 3855 goto nfsmout; 3856 } else { 3857 NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); 3858 error = nfscl_request(nd, vp, p, cred, stuff); 3859 if (error) 3860 return (error); 3861 if (nd->nd_flag & ND_NFSV3) { 3862 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3863 if (error) 3864 goto nfsmout; 3865 } 3866 if (nd->nd_repstat) { 3867 error = nd->nd_repstat; 3868 goto nfsmout; 3869 } 3870 NFSM_DISSECT(tl, u_int32_t *, 3871 NFSX_STATFS(nd->nd_flag & ND_NFSV3)); 3872 } 3873 if (NFSHASNFSV3(nmp)) { 3874 sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; 3875 sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; 3876 sbp->sf_abytes = fxdr_hyper(tl); tl += 2; 3877 sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; 3878 sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; 3879 sbp->sf_afiles = fxdr_hyper(tl); tl += 2; 3880 sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); 3881 } else if (NFSHASNFSV4(nmp) == 0) { 3882 sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); 3883 sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); 3884 sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); 3885 sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); 3886 sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); 3887 } 3888nfsmout: 3889 mbuf_freem(nd->nd_mrep); 3890 return (error); 3891} 3892 3893/* 3894 * nfs pathconf rpc 3895 */ 3896APPLESTATIC int 3897nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, 3898 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3899 void *stuff) 3900{ 3901 struct nfsrv_descript nfsd, *nd = &nfsd; 3902 struct nfsmount *nmp; 3903 u_int32_t *tl; 3904 nfsattrbit_t attrbits; 3905 int error; 3906 3907 *attrflagp = 0; 3908 nmp = VFSTONFS(vnode_mount(vp)); 3909 if (NFSHASNFSV4(nmp)) { 3910 /* 3911 * For V4, you actually do a getattr. 3912 */ 3913 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3914 NFSPATHCONF_GETATTRBIT(&attrbits); 3915 (void) nfsrv_putattrbit(nd, &attrbits); 3916 nd->nd_flag |= ND_USEGSSNAME; 3917 error = nfscl_request(nd, vp, p, cred, stuff); 3918 if (error) 3919 return (error); 3920 if (nd->nd_repstat == 0) { 3921 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3922 pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, 3923 cred); 3924 if (!error) 3925 *attrflagp = 1; 3926 } else { 3927 error = nd->nd_repstat; 3928 } 3929 } else { 3930 NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp); 3931 error = nfscl_request(nd, vp, p, cred, stuff); 3932 if (error) 3933 return (error); 3934 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3935 if (nd->nd_repstat && !error) 3936 error = nd->nd_repstat; 3937 if (!error) { 3938 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF); 3939 pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); 3940 pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); 3941 pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); 3942 pc->pc_chownrestricted = 3943 fxdr_unsigned(u_int32_t, *tl++); 3944 pc->pc_caseinsensitive = 3945 fxdr_unsigned(u_int32_t, *tl++); 3946 pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); 3947 } 3948 } 3949nfsmout: 3950 mbuf_freem(nd->nd_mrep); 3951 return (error); 3952} 3953 3954/* 3955 * nfs version 3 fsinfo rpc call 3956 */ 3957APPLESTATIC int 3958nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, 3959 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 3960{ 3961 u_int32_t *tl; 3962 struct nfsrv_descript nfsd, *nd = &nfsd; 3963 int error; 3964 3965 *attrflagp = 0; 3966 NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); 3967 error = nfscl_request(nd, vp, p, cred, stuff); 3968 if (error) 3969 return (error); 3970 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3971 if (nd->nd_repstat && !error) 3972 error = nd->nd_repstat; 3973 if (!error) { 3974 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); 3975 fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); 3976 fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); 3977 fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); 3978 fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); 3979 fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); 3980 fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); 3981 fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); 3982 fsp->fs_maxfilesize = fxdr_hyper(tl); 3983 tl += 2; 3984 fxdr_nfsv3time(tl, &fsp->fs_timedelta); 3985 tl += 2; 3986 fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); 3987 } 3988nfsmout: 3989 mbuf_freem(nd->nd_mrep); 3990 return (error); 3991} 3992 3993/* 3994 * This function performs the Renew RPC. 3995 */ 3996APPLESTATIC int 3997nfsrpc_renew(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p) 3998{ 3999 u_int32_t *tl; 4000 struct nfsrv_descript nfsd; 4001 struct nfsrv_descript *nd = &nfsd; 4002 struct nfsmount *nmp; 4003 int error; 4004 4005 nmp = clp->nfsc_nmp; 4006 if (nmp == NULL) 4007 return (0); 4008 nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL); 4009 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4010 *tl++ = clp->nfsc_clientid.lval[0]; 4011 *tl = clp->nfsc_clientid.lval[1]; 4012 nd->nd_flag |= ND_USEGSSNAME; 4013 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4014 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4015 if (error) 4016 return (error); 4017 error = nd->nd_repstat; 4018 mbuf_freem(nd->nd_mrep); 4019 return (error); 4020} 4021 4022/* 4023 * This function performs the Releaselockowner RPC. 4024 */ 4025APPLESTATIC int 4026nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, 4027 struct ucred *cred, NFSPROC_T *p) 4028{ 4029 struct nfsrv_descript nfsd, *nd = &nfsd; 4030 u_int32_t *tl; 4031 int error; 4032 4033 nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL); 4034 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4035 *tl++ = nmp->nm_clp->nfsc_clientid.lval[0]; 4036 *tl = nmp->nm_clp->nfsc_clientid.lval[1]; 4037 (void) nfsm_strtom(nd, lp->nfsl_owner, NFSV4CL_LOCKNAMELEN); 4038 nd->nd_flag |= ND_USEGSSNAME; 4039 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4040 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4041 if (error) 4042 return (error); 4043 error = nd->nd_repstat; 4044 mbuf_freem(nd->nd_mrep); 4045 return (error); 4046} 4047 4048/* 4049 * This function performs the Compound to get the mount pt FH. 4050 */ 4051APPLESTATIC int 4052nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, 4053 NFSPROC_T *p) 4054{ 4055 u_int32_t *tl; 4056 struct nfsrv_descript nfsd; 4057 struct nfsrv_descript *nd = &nfsd; 4058 u_char *cp, *cp2; 4059 int error, cnt, len, setnil; 4060 u_int32_t *opcntp; 4061 4062 nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp); 4063 cp = dirpath; 4064 cnt = 0; 4065 do { 4066 setnil = 0; 4067 while (*cp == '/') 4068 cp++; 4069 cp2 = cp; 4070 while (*cp2 != '\0' && *cp2 != '/') 4071 cp2++; 4072 if (*cp2 == '/') { 4073 setnil = 1; 4074 *cp2 = '\0'; 4075 } 4076 if (cp2 != cp) { 4077 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4078 *tl = txdr_unsigned(NFSV4OP_LOOKUP); 4079 nfsm_strtom(nd, cp, strlen(cp)); 4080 cnt++; 4081 } 4082 if (setnil) 4083 *cp2++ = '/'; 4084 cp = cp2; 4085 } while (*cp != '\0'); 4086 *opcntp = txdr_unsigned(2 + cnt); 4087 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4088 *tl = txdr_unsigned(NFSV4OP_GETFH); 4089 nd->nd_flag |= ND_USEGSSNAME; 4090 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4091 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4092 if (error) 4093 return (error); 4094 if (nd->nd_repstat == 0) { 4095 NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); 4096 tl += (2 + 2 * cnt); 4097 if ((len = fxdr_unsigned(int, *tl)) <= 0 || 4098 len > NFSX_FHMAX) { 4099 nd->nd_repstat = NFSERR_BADXDR; 4100 } else { 4101 nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); 4102 if (nd->nd_repstat == 0) 4103 nmp->nm_fhsize = len; 4104 } 4105 } 4106 error = nd->nd_repstat; 4107nfsmout: 4108 mbuf_freem(nd->nd_mrep); 4109 return (error); 4110} 4111 4112/* 4113 * This function performs the Delegreturn RPC. 4114 */ 4115APPLESTATIC int 4116nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, 4117 struct nfsmount *nmp, NFSPROC_T *p, int syscred) 4118{ 4119 u_int32_t *tl; 4120 struct nfsrv_descript nfsd; 4121 struct nfsrv_descript *nd = &nfsd; 4122 int error; 4123 4124 nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, 4125 dp->nfsdl_fhlen, NULL); 4126 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 4127 *tl++ = dp->nfsdl_stateid.seqid; 4128 *tl++ = dp->nfsdl_stateid.other[0]; 4129 *tl++ = dp->nfsdl_stateid.other[1]; 4130 *tl = dp->nfsdl_stateid.other[2]; 4131 if (syscred) 4132 nd->nd_flag |= ND_USEGSSNAME; 4133 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4134 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4135 if (error) 4136 return (error); 4137 error = nd->nd_repstat; 4138 mbuf_freem(nd->nd_mrep); 4139 return (error); 4140} 4141 4142/* 4143 * nfs getacl call. 4144 */ 4145APPLESTATIC int 4146nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4147 struct acl *aclp, void *stuff) 4148{ 4149 struct nfsrv_descript nfsd, *nd = &nfsd; 4150 int error; 4151 nfsattrbit_t attrbits; 4152 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4153 4154 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4155 return (EOPNOTSUPP); 4156 NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); 4157 NFSZERO_ATTRBIT(&attrbits); 4158 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4159 (void) nfsrv_putattrbit(nd, &attrbits); 4160 error = nfscl_request(nd, vp, p, cred, stuff); 4161 if (error) 4162 return (error); 4163 if (!nd->nd_repstat) 4164 error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, 4165 NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); 4166 else 4167 error = nd->nd_repstat; 4168 mbuf_freem(nd->nd_mrep); 4169 return (error); 4170} 4171 4172/* 4173 * nfs setacl call. 4174 */ 4175APPLESTATIC int 4176nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4177 struct acl *aclp, void *stuff) 4178{ 4179 int error; 4180 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4181 4182 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4183 return (EOPNOTSUPP); 4184 error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); 4185 return (error); 4186} 4187 4188/* 4189 * nfs setacl call. 4190 */ 4191static int 4192nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4193 struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) 4194{ 4195 struct nfsrv_descript nfsd, *nd = &nfsd; 4196 int error; 4197 nfsattrbit_t attrbits; 4198 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4199 4200 if (!NFSHASNFSV4(nmp)) 4201 return (EOPNOTSUPP); 4202 NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); 4203 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 4204 NFSZERO_ATTRBIT(&attrbits); 4205 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4206 (void) nfsv4_fillattr(nd, vnode_mount(vp), vp, aclp, NULL, NULL, 0, 4207 &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0); 4208 error = nfscl_request(nd, vp, p, cred, stuff); 4209 if (error) 4210 return (error); 4211 /* Don't care about the pre/postop attributes */ 4212 mbuf_freem(nd->nd_mrep); 4213 return (nd->nd_repstat); 4214} 4215