1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * Rpc op calls, generally called from the vnode op calls or through the 39 * buffer cache, for NFS v2, 3 and 4. 40 * These do not normally make any changes to vnode arguments or use 41 * structures that might change between the VFS variants. The returned 42 * arguments are all at the end, after the NFSPROC_T *p one. 43 */ 44 45 #ifndef APPLEKEXT 46 #include <fs/nfs/nfsport.h> 47 48 /* 49 * Global variables 50 */ 51 extern int nfs_numnfscbd; 52 extern struct timeval nfsboottime; 53 extern u_int32_t newnfs_false, newnfs_true; 54 extern nfstype nfsv34_type[9]; 55 extern int nfsrv_useacl; 56 extern char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 57 NFSCLSTATEMUTEX; 58 int nfstest_outofseq = 0; 59 int nfscl_assumeposixlocks = 1; 60 int nfscl_enablecallb = 0; 61 short nfsv4_cbport = NFSV4_CBPORT; 62 int nfstest_openallsetattr = 0; 63 #endif /* !APPLEKEXT */ 64 65 #define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1)) 66 67 static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *, 68 struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *); 69 static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *, 70 nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *); 71 static int nfsrpc_writerpc(vnode_t , struct uio *, int *, u_char *, 72 struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, 73 void *); 74 static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *, 75 nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *, 76 struct nfsvattr *, struct nfsfh **, int *, int *, void *); 77 static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *, 78 nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *, 79 NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, 80 int *, void *, int *); 81 static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *, 82 struct nfscllockowner *, u_int64_t, u_int64_t, 83 u_int32_t, struct ucred *, NFSPROC_T *, int); 84 static void nfsrpc_doclose(struct nfsmount *, struct nfsclopenhead *, 85 NFSPROC_T *); 86 #ifdef NFS4_ACL_EXTATTR_NAME 87 static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, 88 struct acl *, nfsv4stateid_t *, void *); 89 #endif 90 91 /* 92 * nfs null call from vfs. 93 */ 94 APPLESTATIC int 95 nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p) 96 { 97 int error; 98 struct nfsrv_descript nfsd, *nd = &nfsd; 99 100 NFSCL_REQSTART(nd, NFSPROC_NULL, vp); 101 error = nfscl_request(nd, vp, p, cred, NULL); 102 if (nd->nd_repstat && !error) 103 error = nd->nd_repstat; 104 mbuf_freem(nd->nd_mrep); 105 return (error); 106 } 107 108 /* 109 * nfs access rpc op. 110 * For nfs version 3 and 4, use the access rpc to check accessibility. If file 111 * modes are changed on the server, accesses might still fail later. 112 */ 113 APPLESTATIC int 114 nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred, 115 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp) 116 { 117 int error; 118 u_int32_t mode, rmode; 119 120 if (acmode & VREAD) 121 mode = NFSACCESS_READ; 122 else 123 mode = 0; 124 if (vnode_vtype(vp) == VDIR) { 125 if (acmode & VWRITE) 126 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND | 127 NFSACCESS_DELETE); 128 if (acmode & VEXEC) 129 mode |= NFSACCESS_LOOKUP; 130 } else { 131 if (acmode & VWRITE) 132 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND); 133 if (acmode & VEXEC) 134 mode |= NFSACCESS_EXECUTE; 135 } 136 137 /* 138 * Now, just call nfsrpc_accessrpc() to do the actual RPC. 139 */ 140 error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode, 141 NULL); 142 143 /* 144 * The NFS V3 spec does not clarify whether or not 145 * the returned access bits can be a superset of 146 * the ones requested, so... 147 */ 148 if (!error && (rmode & mode) != mode) 149 error = EACCES; 150 return (error); 151 } 152 153 /* 154 * The actual rpc, separated out for Darwin. 155 */ 156 APPLESTATIC int 157 nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred, 158 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep, 159 void *stuff) 160 { 161 u_int32_t *tl; 162 u_int32_t supported, rmode; 163 int error; 164 struct nfsrv_descript nfsd, *nd = &nfsd; 165 nfsattrbit_t attrbits; 166 167 *attrflagp = 0; 168 supported = mode; 169 NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp); 170 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 171 *tl = txdr_unsigned(mode); 172 if (nd->nd_flag & ND_NFSV4) { 173 /* 174 * And do a Getattr op. 175 */ 176 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 177 *tl = txdr_unsigned(NFSV4OP_GETATTR); 178 NFSGETATTR_ATTRBIT(&attrbits); 179 (void) nfsrv_putattrbit(nd, &attrbits); 180 } 181 error = nfscl_request(nd, vp, p, cred, stuff); 182 if (error) 183 return (error); 184 if (nd->nd_flag & ND_NFSV3) { 185 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 186 if (error) 187 goto nfsmout; 188 } 189 if (!nd->nd_repstat) { 190 if (nd->nd_flag & ND_NFSV4) { 191 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 192 supported = fxdr_unsigned(u_int32_t, *tl++); 193 } else { 194 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 195 } 196 rmode = fxdr_unsigned(u_int32_t, *tl); 197 if (nd->nd_flag & ND_NFSV4) 198 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 199 200 /* 201 * It's not obvious what should be done about 202 * unsupported access modes. For now, be paranoid 203 * and clear the unsupported ones. 204 */ 205 rmode &= supported; 206 *rmodep = rmode; 207 } else 208 error = nd->nd_repstat; 209 nfsmout: 210 mbuf_freem(nd->nd_mrep); 211 return (error); 212 } 213 214 /* 215 * nfs open rpc 216 */ 217 APPLESTATIC int 218 nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p) 219 { 220 struct nfsclopen *op; 221 struct nfscldeleg *dp; 222 struct nfsfh *nfhp; 223 struct nfsnode *np = VTONFS(vp); 224 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 225 u_int32_t mode, clidrev; 226 int ret, newone, error, expireret = 0, retrycnt; 227 228 /* 229 * For NFSv4, Open Ops are only done on Regular Files. 230 */ 231 if (vnode_vtype(vp) != VREG) 232 return (0); 233 mode = 0; 234 if (amode & FREAD) 235 mode |= NFSV4OPEN_ACCESSREAD; 236 if (amode & FWRITE) 237 mode |= NFSV4OPEN_ACCESSWRITE; 238 nfhp = np->n_fhp; 239 240 retrycnt = 0; 241 #ifdef notdef 242 { char name[100]; int namel; 243 namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; 244 bcopy(NFS4NODENAME(np->n_v4), name, namel); 245 name[namel] = '\0'; 246 printf("rpcopen p=0x%x name=%s",p->p_pid,name); 247 if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); 248 else printf(" fhl=0\n"); 249 } 250 #endif 251 do { 252 dp = NULL; 253 error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1, 254 cred, p, NULL, &op, &newone, &ret, 1); 255 if (error) { 256 return (error); 257 } 258 if (nmp->nm_clp != NULL) 259 clidrev = nmp->nm_clp->nfsc_clientidrev; 260 else 261 clidrev = 0; 262 if (ret == NFSCLOPEN_DOOPEN) { 263 if (np->n_v4 != NULL) { 264 error = nfsrpc_openrpc(nmp, vp, np->n_v4->n4_data, 265 np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, 266 np->n_fhp->nfh_len, mode, op, 267 NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, &dp, 268 0, 0x0, cred, p, 0, 0); 269 if (dp != NULL) { 270 #ifdef APPLE 271 OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag); 272 #else 273 NFSLOCKNODE(np); 274 np->n_flag &= ~NDELEGMOD; 275 NFSUNLOCKNODE(np); 276 #endif 277 (void) nfscl_deleg(nmp->nm_mountp, 278 op->nfso_own->nfsow_clp, 279 nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); 280 } 281 } else { 282 error = EIO; 283 } 284 newnfs_copyincred(cred, &op->nfso_cred); 285 } 286 287 /* 288 * nfso_opencnt is the count of how many VOP_OPEN()s have 289 * been done on this Open successfully and a VOP_CLOSE() 290 * is expected for each of these. 291 * If error is non-zero, don't increment it, since the Open 292 * hasn't succeeded yet. 293 */ 294 if (!error) 295 op->nfso_opencnt++; 296 nfscl_openrelease(op, error, newone); 297 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 298 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 299 (void) nfs_catnap(PZERO, "nfs_open"); 300 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 301 && clidrev != 0) { 302 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 303 retrycnt++; 304 } 305 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 306 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 307 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 308 expireret == 0 && clidrev != 0 && retrycnt < 4)); 309 if (error && retrycnt >= 4) 310 error = EIO; 311 return (error); 312 } 313 314 /* 315 * the actual open rpc 316 */ 317 APPLESTATIC int 318 nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, 319 u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, 320 u_int8_t *name, int namelen, struct nfscldeleg **dpp, 321 int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, 322 int syscred, int recursed) 323 { 324 u_int32_t *tl; 325 struct nfsrv_descript nfsd, *nd = &nfsd; 326 struct nfscldeleg *dp, *ndp = NULL; 327 struct nfsvattr nfsva; 328 u_int32_t rflags, deleg; 329 nfsattrbit_t attrbits; 330 int error, ret, acesize, limitby; 331 332 dp = *dpp; 333 *dpp = NULL; 334 nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL); 335 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 336 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 337 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 338 *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 339 *tl++ = op->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 340 *tl = op->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 341 (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); 342 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 343 *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); 344 if (reclaim) { 345 *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); 346 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 347 *tl = txdr_unsigned(delegtype); 348 } else { 349 if (dp != NULL) { 350 *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); 351 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 352 *tl++ = dp->nfsdl_stateid.seqid; 353 *tl++ = dp->nfsdl_stateid.other[0]; 354 *tl++ = dp->nfsdl_stateid.other[1]; 355 *tl = dp->nfsdl_stateid.other[2]; 356 } else { 357 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 358 } 359 (void) nfsm_strtom(nd, name, namelen); 360 } 361 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 362 *tl = txdr_unsigned(NFSV4OP_GETATTR); 363 NFSZERO_ATTRBIT(&attrbits); 364 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 365 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); 366 (void) nfsrv_putattrbit(nd, &attrbits); 367 if (syscred) 368 nd->nd_flag |= ND_USEGSSNAME; 369 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 370 NFS_PROG, NFS_VER4, NULL, 1, NULL); 371 if (error) 372 return (error); 373 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 374 if (!nd->nd_repstat) { 375 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 376 6 * NFSX_UNSIGNED); 377 op->nfso_stateid.seqid = *tl++; 378 op->nfso_stateid.other[0] = *tl++; 379 op->nfso_stateid.other[1] = *tl++; 380 op->nfso_stateid.other[2] = *tl; 381 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 382 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 383 if (error) 384 goto nfsmout; 385 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 386 deleg = fxdr_unsigned(u_int32_t, *tl); 387 if (deleg == NFSV4OPEN_DELEGATEREAD || 388 deleg == NFSV4OPEN_DELEGATEWRITE) { 389 if (!(op->nfso_own->nfsow_clp->nfsc_flags & 390 NFSCLFLAGS_FIRSTDELEG)) 391 op->nfso_own->nfsow_clp->nfsc_flags |= 392 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 393 MALLOC(ndp, struct nfscldeleg *, 394 sizeof (struct nfscldeleg) + newfhlen, 395 M_NFSCLDELEG, M_WAITOK); 396 LIST_INIT(&ndp->nfsdl_owner); 397 LIST_INIT(&ndp->nfsdl_lock); 398 ndp->nfsdl_clp = op->nfso_own->nfsow_clp; 399 ndp->nfsdl_fhlen = newfhlen; 400 NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); 401 newnfs_copyincred(cred, &ndp->nfsdl_cred); 402 nfscl_lockinit(&ndp->nfsdl_rwlock); 403 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 404 NFSX_UNSIGNED); 405 ndp->nfsdl_stateid.seqid = *tl++; 406 ndp->nfsdl_stateid.other[0] = *tl++; 407 ndp->nfsdl_stateid.other[1] = *tl++; 408 ndp->nfsdl_stateid.other[2] = *tl++; 409 ret = fxdr_unsigned(int, *tl); 410 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 411 ndp->nfsdl_flags = NFSCLDL_WRITE; 412 /* 413 * Indicates how much the file can grow. 414 */ 415 NFSM_DISSECT(tl, u_int32_t *, 416 3 * NFSX_UNSIGNED); 417 limitby = fxdr_unsigned(int, *tl++); 418 switch (limitby) { 419 case NFSV4OPEN_LIMITSIZE: 420 ndp->nfsdl_sizelimit = fxdr_hyper(tl); 421 break; 422 case NFSV4OPEN_LIMITBLOCKS: 423 ndp->nfsdl_sizelimit = 424 fxdr_unsigned(u_int64_t, *tl++); 425 ndp->nfsdl_sizelimit *= 426 fxdr_unsigned(u_int64_t, *tl); 427 break; 428 default: 429 error = NFSERR_BADXDR; 430 goto nfsmout; 431 }; 432 } else { 433 ndp->nfsdl_flags = NFSCLDL_READ; 434 } 435 if (ret) 436 ndp->nfsdl_flags |= NFSCLDL_RECALL; 437 error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, 438 &acesize, p); 439 if (error) 440 goto nfsmout; 441 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 442 error = NFSERR_BADXDR; 443 goto nfsmout; 444 } 445 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 446 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 447 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 448 NULL, NULL, NULL, p, cred); 449 if (error) 450 goto nfsmout; 451 if (ndp != NULL) { 452 ndp->nfsdl_change = nfsva.na_filerev; 453 ndp->nfsdl_modtime = nfsva.na_mtime; 454 ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; 455 } 456 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { 457 do { 458 ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, 459 cred, p); 460 if (ret == NFSERR_DELAY) 461 (void) nfs_catnap(PZERO, "nfs_open"); 462 } while (ret == NFSERR_DELAY); 463 error = ret; 464 } 465 if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || 466 nfscl_assumeposixlocks) 467 op->nfso_posixlock = 1; 468 else 469 op->nfso_posixlock = 0; 470 471 /* 472 * If the server is handing out delegations, but we didn't 473 * get one because an OpenConfirm was required, try the 474 * Open again, to get a delegation. This is a harmless no-op, 475 * from a server's point of view. 476 */ 477 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && 478 (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) 479 && !error && dp == NULL && ndp == NULL && !recursed) { 480 do { 481 ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, 482 newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, 483 cred, p, syscred, 1); 484 if (ret == NFSERR_DELAY) 485 (void) nfs_catnap(PZERO, "nfs_open2"); 486 } while (ret == NFSERR_DELAY); 487 if (ret) { 488 if (ndp != NULL) 489 FREE((caddr_t)ndp, M_NFSCLDELEG); 490 if (ret == NFSERR_STALECLIENTID || 491 ret == NFSERR_STALEDONTRECOVER) 492 error = ret; 493 } 494 } 495 } 496 if (nd->nd_repstat != 0 && error == 0) 497 error = nd->nd_repstat; 498 if (error == NFSERR_STALECLIENTID) 499 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 500 nfsmout: 501 if (!error) 502 *dpp = ndp; 503 else if (ndp != NULL) 504 FREE((caddr_t)ndp, M_NFSCLDELEG); 505 mbuf_freem(nd->nd_mrep); 506 return (error); 507 } 508 509 /* 510 * open downgrade rpc 511 */ 512 APPLESTATIC int 513 nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, 514 struct ucred *cred, NFSPROC_T *p) 515 { 516 u_int32_t *tl; 517 struct nfsrv_descript nfsd, *nd = &nfsd; 518 int error; 519 520 NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); 521 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 522 *tl++ = op->nfso_stateid.seqid; 523 *tl++ = op->nfso_stateid.other[0]; 524 *tl++ = op->nfso_stateid.other[1]; 525 *tl++ = op->nfso_stateid.other[2]; 526 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 527 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 528 *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 529 error = nfscl_request(nd, vp, p, cred, NULL); 530 if (error) 531 return (error); 532 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 533 if (!nd->nd_repstat) { 534 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 535 op->nfso_stateid.seqid = *tl++; 536 op->nfso_stateid.other[0] = *tl++; 537 op->nfso_stateid.other[1] = *tl++; 538 op->nfso_stateid.other[2] = *tl; 539 } 540 if (nd->nd_repstat && error == 0) 541 error = nd->nd_repstat; 542 if (error == NFSERR_STALESTATEID) 543 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 544 nfsmout: 545 mbuf_freem(nd->nd_mrep); 546 return (error); 547 } 548 549 /* 550 * V4 Close operation. 551 */ 552 APPLESTATIC int 553 nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) 554 { 555 struct nfsclclient *clp; 556 struct nfsclopenhead oh; 557 int error; 558 559 if (vnode_vtype(vp) != VREG) 560 return (0); 561 if (doclose) 562 error = nfscl_getclose(vp, &clp, &oh); 563 else 564 error = nfscl_getclose(vp, &clp, NULL); 565 if (error) 566 return (error); 567 568 if (doclose && !LIST_EMPTY(&oh)) 569 nfsrpc_doclose(VFSTONFS(vnode_mount(vp)), &oh, p); 570 nfscl_clientrelease(clp); 571 return (0); 572 } 573 574 /* 575 * Close/free all the opens in the list. 576 */ 577 static void 578 nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopenhead *ohp, NFSPROC_T *p) 579 { 580 struct nfsrv_descript nfsd, *nd = &nfsd; 581 struct nfsclopen *op, *nop; 582 struct nfscllockowner *lp; 583 struct nfscllock *lop, *nlop; 584 struct ucred *tcred; 585 u_int64_t off = 0, len = 0; 586 u_int32_t type = NFSV4LOCKT_READ; 587 int error; 588 589 tcred = newnfs_getcred(); 590 op = LIST_FIRST(ohp); 591 while (op != NULL) { 592 nop = LIST_NEXT(op, nfso_list); 593 newnfs_copycred(&op->nfso_cred, tcred); 594 /* 595 * (Theoretically this could be done in the same 596 * compound as the close, but having multiple 597 * sequenced Ops in the same compound might be 598 * too scary for some servers.) 599 */ 600 if (op->nfso_posixlock) { 601 off = 0; 602 len = NFS64BITSSET; 603 type = NFSV4LOCKT_READ; 604 } 605 LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { 606 lop = LIST_FIRST(&lp->nfsl_lock); 607 while (lop != NULL) { 608 nlop = LIST_NEXT(lop, nfslo_list); 609 if (op->nfso_posixlock == 0) { 610 off = lop->nfslo_first; 611 len = lop->nfslo_end - lop->nfslo_first; 612 if (lop->nfslo_type == F_WRLCK) 613 type = NFSV4LOCKT_WRITE; 614 else 615 type = NFSV4LOCKT_READ; 616 } 617 if (lop == LIST_FIRST(&lp->nfsl_lock) || 618 op->nfso_posixlock == 0) { 619 NFSLOCKCLSTATE(); 620 nfscl_lockexcl(&lp->nfsl_rwlock, 621 NFSCLSTATEMUTEXPTR); 622 NFSUNLOCKCLSTATE(); 623 do { 624 error = nfsrpc_locku(nd, nmp, lp, off, len, 625 type, tcred, p, 0); 626 if ((nd->nd_repstat == NFSERR_GRACE || 627 nd->nd_repstat == NFSERR_DELAY) && 628 error == 0) 629 (void) nfs_catnap(PZERO, "nfs_close"); 630 } while ((nd->nd_repstat == NFSERR_GRACE || 631 nd->nd_repstat == NFSERR_DELAY) && error == 0); 632 NFSLOCKCLSTATE(); 633 nfscl_lockunlock(&lp->nfsl_rwlock); 634 NFSUNLOCKCLSTATE(); 635 } 636 nfscl_freelock(lop, 0); 637 lop = nlop; 638 } 639 } 640 NFSLOCKCLSTATE(); 641 nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); 642 NFSUNLOCKCLSTATE(); 643 do { 644 error = nfscl_tryclose(op, tcred, nmp, p); 645 if (error == NFSERR_GRACE) 646 (void) nfs_catnap(PZERO, "nfs_close"); 647 } while (error == NFSERR_GRACE); 648 NFSLOCKCLSTATE(); 649 nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); 650 NFSUNLOCKCLSTATE(); 651 652 /* 653 * Move the lockowner to nfsc_defunctlockowner, 654 * so the Renew thread will do the ReleaseLockOwner 655 * Op on it later. There might still be other 656 * opens using the same lockowner name. 657 */ 658 lp = LIST_FIRST(&op->nfso_lock); 659 if (lp != NULL) { 660 while (LIST_NEXT(lp, nfsl_list) != NULL) 661 lp = LIST_NEXT(lp, nfsl_list); 662 LIST_PREPEND(&nmp->nm_clp->nfsc_defunctlockowner, 663 &op->nfso_lock, lp, nfsl_list); 664 LIST_INIT(&op->nfso_lock); 665 } 666 nfscl_freeopen(op, 0); 667 op = nop; 668 } 669 NFSFREECRED(tcred); 670 } 671 672 /* 673 * The actual Close RPC. 674 */ 675 APPLESTATIC int 676 nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, 677 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, 678 int syscred) 679 { 680 u_int32_t *tl; 681 int error; 682 683 nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, 684 op->nfso_fhlen, NULL); 685 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 686 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 687 *tl++ = op->nfso_stateid.seqid; 688 *tl++ = op->nfso_stateid.other[0]; 689 *tl++ = op->nfso_stateid.other[1]; 690 *tl = op->nfso_stateid.other[2]; 691 if (syscred) 692 nd->nd_flag |= ND_USEGSSNAME; 693 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 694 NFS_PROG, NFS_VER4, NULL, 1, NULL); 695 if (error) 696 return (error); 697 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 698 if (nd->nd_repstat == 0) 699 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 700 error = nd->nd_repstat; 701 if (error == NFSERR_STALESTATEID) 702 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 703 nfsmout: 704 mbuf_freem(nd->nd_mrep); 705 return (error); 706 } 707 708 /* 709 * V4 Open Confirm RPC. 710 */ 711 APPLESTATIC int 712 nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, 713 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) 714 { 715 u_int32_t *tl; 716 struct nfsrv_descript nfsd, *nd = &nfsd; 717 int error; 718 719 nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, VFSTONFS(vnode_mount(vp)), 720 nfhp, fhlen, NULL); 721 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 722 *tl++ = op->nfso_stateid.seqid; 723 *tl++ = op->nfso_stateid.other[0]; 724 *tl++ = op->nfso_stateid.other[1]; 725 *tl++ = op->nfso_stateid.other[2]; 726 *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); 727 error = nfscl_request(nd, vp, p, cred, NULL); 728 if (error) 729 return (error); 730 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 731 if (!nd->nd_repstat) { 732 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 733 op->nfso_stateid.seqid = *tl++; 734 op->nfso_stateid.other[0] = *tl++; 735 op->nfso_stateid.other[1] = *tl++; 736 op->nfso_stateid.other[2] = *tl; 737 } 738 error = nd->nd_repstat; 739 if (error == NFSERR_STALESTATEID) 740 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 741 nfsmout: 742 mbuf_freem(nd->nd_mrep); 743 return (error); 744 } 745 746 /* 747 * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() 748 * when a mount has just occurred and when the server replies NFSERR_EXPIRED. 749 */ 750 APPLESTATIC int 751 nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, 752 struct ucred *cred, NFSPROC_T *p) 753 { 754 u_int32_t *tl; 755 struct nfsrv_descript nfsd; 756 struct nfsrv_descript *nd = &nfsd; 757 nfsattrbit_t attrbits; 758 u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; 759 u_short port; 760 int error, isinet6, callblen; 761 nfsquad_t confirm; 762 u_int32_t lease; 763 static u_int32_t rev = 0; 764 765 if (nfsboottime.tv_sec == 0) 766 NFSSETBOOTTIME(nfsboottime); 767 nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL); 768 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 769 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 770 *tl = txdr_unsigned(rev++); 771 (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); 772 773 /* 774 * set up the callback address 775 */ 776 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 777 *tl = txdr_unsigned(NFS_CALLBCKPROG); 778 callblen = strlen(nfsv4_callbackaddr); 779 if (callblen == 0) 780 cp = nfscl_getmyip(nmp, &isinet6); 781 if (nfscl_enablecallb && nfs_numnfscbd > 0 && 782 (callblen > 0 || cp != NULL)) { 783 port = htons(nfsv4_cbport); 784 cp2 = (u_int8_t *)&port; 785 #ifdef INET6 786 if ((callblen > 0 && 787 strchr(nfsv4_callbackaddr, ':')) || isinet6) { 788 char ip6buf[INET6_ADDRSTRLEN], *ip6add; 789 790 (void) nfsm_strtom(nd, "tcp6", 4); 791 if (callblen == 0) { 792 ip6_sprintf(ip6buf, (struct in6_addr *)cp); 793 ip6add = ip6buf; 794 } else { 795 ip6add = nfsv4_callbackaddr; 796 } 797 snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", 798 ip6add, cp2[0], cp2[1]); 799 } else 800 #endif 801 { 802 (void) nfsm_strtom(nd, "tcp", 3); 803 if (callblen == 0) 804 snprintf(addr, INET6_ADDRSTRLEN + 9, 805 "%d.%d.%d.%d.%d.%d", cp[0], cp[1], 806 cp[2], cp[3], cp2[0], cp2[1]); 807 else 808 snprintf(addr, INET6_ADDRSTRLEN + 9, 809 "%s.%d.%d", nfsv4_callbackaddr, 810 cp2[0], cp2[1]); 811 } 812 (void) nfsm_strtom(nd, addr, strlen(addr)); 813 } else { 814 (void) nfsm_strtom(nd, "tcp", 3); 815 (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); 816 } 817 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 818 *tl = txdr_unsigned(clp->nfsc_cbident); 819 nd->nd_flag |= ND_USEGSSNAME; 820 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 821 NFS_PROG, NFS_VER4, NULL, 1, NULL); 822 if (error) 823 return (error); 824 if (nd->nd_repstat == 0) { 825 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 826 clp->nfsc_clientid.lval[0] = *tl++; 827 clp->nfsc_clientid.lval[1] = *tl++; 828 confirm.lval[0] = *tl++; 829 confirm.lval[1] = *tl; 830 mbuf_freem(nd->nd_mrep); 831 nd->nd_mrep = NULL; 832 833 /* 834 * and confirm it. 835 */ 836 nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL); 837 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 838 *tl++ = clp->nfsc_clientid.lval[0]; 839 *tl++ = clp->nfsc_clientid.lval[1]; 840 *tl++ = confirm.lval[0]; 841 *tl = confirm.lval[1]; 842 nd->nd_flag |= ND_USEGSSNAME; 843 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 844 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 845 if (error) 846 return (error); 847 mbuf_freem(nd->nd_mrep); 848 nd->nd_mrep = NULL; 849 if (nd->nd_repstat == 0) { 850 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, 851 nmp->nm_fhsize, NULL); 852 NFSZERO_ATTRBIT(&attrbits); 853 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); 854 (void) nfsrv_putattrbit(nd, &attrbits); 855 nd->nd_flag |= ND_USEGSSNAME; 856 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 857 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 858 if (error) 859 return (error); 860 if (nd->nd_repstat == 0) { 861 error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, 862 NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); 863 if (error) 864 goto nfsmout; 865 clp->nfsc_renew = NFSCL_RENEW(lease); 866 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; 867 clp->nfsc_clientidrev++; 868 if (clp->nfsc_clientidrev == 0) 869 clp->nfsc_clientidrev++; 870 } 871 } 872 } 873 error = nd->nd_repstat; 874 nfsmout: 875 mbuf_freem(nd->nd_mrep); 876 return (error); 877 } 878 879 /* 880 * nfs getattr call. 881 */ 882 APPLESTATIC int 883 nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 884 struct nfsvattr *nap, void *stuff) 885 { 886 struct nfsrv_descript nfsd, *nd = &nfsd; 887 int error; 888 nfsattrbit_t attrbits; 889 890 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 891 if (nd->nd_flag & ND_NFSV4) { 892 NFSGETATTR_ATTRBIT(&attrbits); 893 (void) nfsrv_putattrbit(nd, &attrbits); 894 } 895 error = nfscl_request(nd, vp, p, cred, stuff); 896 if (error) 897 return (error); 898 if (!nd->nd_repstat) 899 error = nfsm_loadattr(nd, nap); 900 else 901 error = nd->nd_repstat; 902 mbuf_freem(nd->nd_mrep); 903 return (error); 904 } 905 906 /* 907 * nfs getattr call with non-vnode arguemnts. 908 */ 909 APPLESTATIC int 910 nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, 911 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp) 912 { 913 struct nfsrv_descript nfsd, *nd = &nfsd; 914 int error, vers = NFS_VER2; 915 nfsattrbit_t attrbits; 916 917 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL); 918 if (nd->nd_flag & ND_NFSV4) { 919 vers = NFS_VER4; 920 NFSGETATTR_ATTRBIT(&attrbits); 921 (void) nfsrv_putattrbit(nd, &attrbits); 922 } else if (nd->nd_flag & ND_NFSV3) { 923 vers = NFS_VER3; 924 } 925 if (syscred) 926 nd->nd_flag |= ND_USEGSSNAME; 927 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 928 NFS_PROG, vers, NULL, 1, xidp); 929 if (error) 930 return (error); 931 if (!nd->nd_repstat) 932 error = nfsm_loadattr(nd, nap); 933 else 934 error = nd->nd_repstat; 935 mbuf_freem(nd->nd_mrep); 936 return (error); 937 } 938 939 /* 940 * Do an nfs setattr operation. 941 */ 942 APPLESTATIC int 943 nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, 944 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, 945 void *stuff) 946 { 947 int error, expireret = 0, openerr, retrycnt; 948 u_int32_t clidrev = 0, mode; 949 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 950 struct nfsfh *nfhp; 951 nfsv4stateid_t stateid; 952 void *lckp; 953 954 if (nmp->nm_clp != NULL) 955 clidrev = nmp->nm_clp->nfsc_clientidrev; 956 if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) 957 mode = NFSV4OPEN_ACCESSWRITE; 958 else 959 mode = NFSV4OPEN_ACCESSREAD; 960 retrycnt = 0; 961 do { 962 lckp = NULL; 963 openerr = 1; 964 if (NFSHASNFSV4(nmp)) { 965 nfhp = VTONFS(vp)->n_fhp; 966 error = nfscl_getstateid(vp, nfhp->nfh_fh, 967 nfhp->nfh_len, mode, cred, p, &stateid, &lckp); 968 if (error && vnode_vtype(vp) == VREG && 969 (mode == NFSV4OPEN_ACCESSWRITE || 970 nfstest_openallsetattr)) { 971 /* 972 * No Open stateid, so try and open the file 973 * now. 974 */ 975 if (mode == NFSV4OPEN_ACCESSWRITE) 976 openerr = nfsrpc_open(vp, FWRITE, cred, 977 p); 978 else 979 openerr = nfsrpc_open(vp, FREAD, cred, 980 p); 981 if (!openerr) 982 (void) nfscl_getstateid(vp, 983 nfhp->nfh_fh, nfhp->nfh_len, 984 mode, cred, p, &stateid, &lckp); 985 } 986 } 987 if (vap != NULL) 988 error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, 989 rnap, attrflagp, stuff); 990 #ifdef NFS4_ACL_EXTATTR_NAME 991 else 992 error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, 993 stuff); 994 #else 995 else 996 error = EOPNOTSUPP; 997 #endif 998 if (error == NFSERR_STALESTATEID) 999 nfscl_initiate_recovery(nmp->nm_clp); 1000 if (lckp != NULL) 1001 nfscl_lockderef(lckp); 1002 if (!openerr) 1003 (void) nfsrpc_close(vp, 0, p); 1004 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1005 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1006 error == NFSERR_OLDSTATEID) { 1007 (void) nfs_catnap(PZERO, "nfs_setattr"); 1008 } else if ((error == NFSERR_EXPIRED || 1009 error == NFSERR_BADSTATEID) && clidrev != 0) { 1010 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1011 } 1012 retrycnt++; 1013 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1014 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1015 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1016 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1017 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1018 if (error && retrycnt >= 4) 1019 error = EIO; 1020 return (error); 1021 } 1022 1023 static int 1024 nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap, 1025 nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, 1026 struct nfsvattr *rnap, int *attrflagp, void *stuff) 1027 { 1028 u_int32_t *tl; 1029 struct nfsrv_descript nfsd, *nd = &nfsd; 1030 int error; 1031 nfsattrbit_t attrbits; 1032 1033 *attrflagp = 0; 1034 NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp); 1035 if (nd->nd_flag & ND_NFSV4) 1036 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1037 vap->va_type = vnode_vtype(vp); 1038 nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0); 1039 if (nd->nd_flag & ND_NFSV3) { 1040 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1041 *tl = newnfs_false; 1042 } else if (nd->nd_flag & ND_NFSV4) { 1043 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1044 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1045 NFSGETATTR_ATTRBIT(&attrbits); 1046 (void) nfsrv_putattrbit(nd, &attrbits); 1047 } 1048 error = nfscl_request(nd, vp, p, cred, stuff); 1049 if (error) 1050 return (error); 1051 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1052 error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff); 1053 if ((nd->nd_flag & ND_NFSV4) && !error) 1054 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1055 if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error) 1056 error = nfscl_postop_attr(nd, rnap, attrflagp, stuff); 1057 mbuf_freem(nd->nd_mrep); 1058 if (nd->nd_repstat && !error) 1059 error = nd->nd_repstat; 1060 return (error); 1061 } 1062 1063 /* 1064 * nfs lookup rpc 1065 */ 1066 APPLESTATIC int 1067 nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred, 1068 NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap, 1069 struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff) 1070 { 1071 u_int32_t *tl; 1072 struct nfsrv_descript nfsd, *nd = &nfsd; 1073 struct nfsmount *nmp; 1074 struct nfsnode *np; 1075 struct nfsfh *nfhp; 1076 nfsattrbit_t attrbits; 1077 int error = 0, lookupp = 0; 1078 1079 *attrflagp = 0; 1080 *dattrflagp = 0; 1081 if (vnode_vtype(dvp) != VDIR) 1082 return (ENOTDIR); 1083 nmp = VFSTONFS(vnode_mount(dvp)); 1084 if (len > NFS_MAXNAMLEN) 1085 return (ENAMETOOLONG); 1086 if (NFSHASNFSV4(nmp) && len == 1 && 1087 name[0] == '.') { 1088 /* 1089 * Just return the current dir's fh. 1090 */ 1091 np = VTONFS(dvp); 1092 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1093 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1094 nfhp->nfh_len = np->n_fhp->nfh_len; 1095 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1096 *nfhpp = nfhp; 1097 return (0); 1098 } 1099 if (NFSHASNFSV4(nmp) && len == 2 && 1100 name[0] == '.' && name[1] == '.') { 1101 lookupp = 1; 1102 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp); 1103 } else { 1104 NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp); 1105 (void) nfsm_strtom(nd, name, len); 1106 } 1107 if (nd->nd_flag & ND_NFSV4) { 1108 NFSGETATTR_ATTRBIT(&attrbits); 1109 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1110 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1111 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1112 (void) nfsrv_putattrbit(nd, &attrbits); 1113 } 1114 error = nfscl_request(nd, dvp, p, cred, stuff); 1115 if (error) 1116 return (error); 1117 if (nd->nd_repstat) { 1118 /* 1119 * When an NFSv4 Lookupp returns ENOENT, it means that 1120 * the lookup is at the root of an fs, so return this dir. 1121 */ 1122 if (nd->nd_repstat == NFSERR_NOENT && lookupp) { 1123 np = VTONFS(dvp); 1124 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1125 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1126 nfhp->nfh_len = np->n_fhp->nfh_len; 1127 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1128 *nfhpp = nfhp; 1129 mbuf_freem(nd->nd_mrep); 1130 return (0); 1131 } 1132 if (nd->nd_flag & ND_NFSV3) 1133 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1134 goto nfsmout; 1135 } 1136 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 1137 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1138 if (*(tl + 1)) { 1139 nd->nd_flag |= ND_NOMOREDATA; 1140 goto nfsmout; 1141 } 1142 } 1143 error = nfsm_getfh(nd, nfhpp); 1144 if (error) 1145 goto nfsmout; 1146 1147 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1148 if ((nd->nd_flag & ND_NFSV3) && !error) 1149 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1150 nfsmout: 1151 mbuf_freem(nd->nd_mrep); 1152 if (!error && nd->nd_repstat) 1153 error = nd->nd_repstat; 1154 return (error); 1155 } 1156 1157 /* 1158 * Do a readlink rpc. 1159 */ 1160 APPLESTATIC int 1161 nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred, 1162 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1163 { 1164 u_int32_t *tl; 1165 struct nfsrv_descript nfsd, *nd = &nfsd; 1166 struct nfsnode *np = VTONFS(vp); 1167 nfsattrbit_t attrbits; 1168 int error, len, cangetattr = 1; 1169 1170 *attrflagp = 0; 1171 NFSCL_REQSTART(nd, NFSPROC_READLINK, vp); 1172 if (nd->nd_flag & ND_NFSV4) { 1173 /* 1174 * And do a Getattr op. 1175 */ 1176 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1177 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1178 NFSGETATTR_ATTRBIT(&attrbits); 1179 (void) nfsrv_putattrbit(nd, &attrbits); 1180 } 1181 error = nfscl_request(nd, vp, p, cred, stuff); 1182 if (error) 1183 return (error); 1184 if (nd->nd_flag & ND_NFSV3) 1185 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1186 if (!nd->nd_repstat && !error) { 1187 NFSM_STRSIZ(len, NFS_MAXPATHLEN); 1188 /* 1189 * This seems weird to me, but must have been added to 1190 * FreeBSD for some reason. The only thing I can think of 1191 * is that there was/is some server that replies with 1192 * more link data than it should? 1193 */ 1194 if (len == NFS_MAXPATHLEN) { 1195 NFSLOCKNODE(np); 1196 if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) { 1197 len = np->n_size; 1198 cangetattr = 0; 1199 } 1200 NFSUNLOCKNODE(np); 1201 } 1202 error = nfsm_mbufuio(nd, uiop, len); 1203 if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr) 1204 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1205 } 1206 if (nd->nd_repstat && !error) 1207 error = nd->nd_repstat; 1208 nfsmout: 1209 mbuf_freem(nd->nd_mrep); 1210 return (error); 1211 } 1212 1213 /* 1214 * Read operation. 1215 */ 1216 APPLESTATIC int 1217 nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred, 1218 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1219 { 1220 int error, expireret = 0, retrycnt; 1221 u_int32_t clidrev = 0; 1222 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1223 struct nfsnode *np = VTONFS(vp); 1224 struct ucred *newcred; 1225 struct nfsfh *nfhp = NULL; 1226 nfsv4stateid_t stateid; 1227 void *lckp; 1228 1229 if (nmp->nm_clp != NULL) 1230 clidrev = nmp->nm_clp->nfsc_clientidrev; 1231 newcred = cred; 1232 if (NFSHASNFSV4(nmp)) { 1233 nfhp = np->n_fhp; 1234 if (p == NULL) 1235 newcred = NFSNEWCRED(cred); 1236 } 1237 retrycnt = 0; 1238 do { 1239 lckp = NULL; 1240 if (NFSHASNFSV4(nmp)) 1241 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1242 NFSV4OPEN_ACCESSREAD, newcred, p, &stateid, &lckp); 1243 error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap, 1244 attrflagp, stuff); 1245 if (error == NFSERR_STALESTATEID) 1246 nfscl_initiate_recovery(nmp->nm_clp); 1247 if (lckp != NULL) 1248 nfscl_lockderef(lckp); 1249 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1250 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1251 error == NFSERR_OLDSTATEID) { 1252 (void) nfs_catnap(PZERO, "nfs_read"); 1253 } else if ((error == NFSERR_EXPIRED || 1254 error == NFSERR_BADSTATEID) && clidrev != 0) { 1255 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1256 } 1257 retrycnt++; 1258 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1259 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1260 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1261 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1262 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1263 if (error && retrycnt >= 4) 1264 error = EIO; 1265 if (NFSHASNFSV4(nmp) && p == NULL) 1266 NFSFREECRED(newcred); 1267 return (error); 1268 } 1269 1270 /* 1271 * The actual read RPC. 1272 */ 1273 static int 1274 nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred, 1275 nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap, 1276 int *attrflagp, void *stuff) 1277 { 1278 u_int32_t *tl; 1279 int error = 0, len, retlen, tsiz, eof = 0; 1280 struct nfsrv_descript nfsd; 1281 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1282 struct nfsrv_descript *nd = &nfsd; 1283 1284 *attrflagp = 0; 1285 tsiz = uio_uio_resid(uiop); 1286 if (uiop->uio_offset + tsiz > 0xffffffff && 1287 !NFSHASNFSV3OR4(nmp)) 1288 return (EFBIG); 1289 nd->nd_mrep = NULL; 1290 while (tsiz > 0) { 1291 *attrflagp = 0; 1292 len = (tsiz > nmp->nm_rsize) ? nmp->nm_rsize : tsiz; 1293 NFSCL_REQSTART(nd, NFSPROC_READ, vp); 1294 if (nd->nd_flag & ND_NFSV4) 1295 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1296 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1297 if (nd->nd_flag & ND_NFSV2) { 1298 *tl++ = txdr_unsigned(uiop->uio_offset); 1299 *tl++ = txdr_unsigned(len); 1300 *tl = 0; 1301 } else { 1302 txdr_hyper(uiop->uio_offset, tl); 1303 *(tl + 2) = txdr_unsigned(len); 1304 } 1305 /* 1306 * Since I can't do a Getattr for NFSv4 for Write, there 1307 * doesn't seem any point in doing one here, either. 1308 * (See the comment in nfsrpc_writerpc() for more info.) 1309 */ 1310 error = nfscl_request(nd, vp, p, cred, stuff); 1311 if (error) 1312 return (error); 1313 if (nd->nd_flag & ND_NFSV3) { 1314 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1315 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 1316 error = nfsm_loadattr(nd, nap); 1317 if (!error) 1318 *attrflagp = 1; 1319 } 1320 if (nd->nd_repstat || error) { 1321 if (!error) 1322 error = nd->nd_repstat; 1323 goto nfsmout; 1324 } 1325 if (nd->nd_flag & ND_NFSV3) { 1326 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1327 eof = fxdr_unsigned(int, *(tl + 1)); 1328 } else if (nd->nd_flag & ND_NFSV4) { 1329 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1330 eof = fxdr_unsigned(int, *tl); 1331 } 1332 NFSM_STRSIZ(retlen, nmp->nm_rsize); 1333 error = nfsm_mbufuio(nd, uiop, retlen); 1334 if (error) 1335 goto nfsmout; 1336 mbuf_freem(nd->nd_mrep); 1337 nd->nd_mrep = NULL; 1338 tsiz -= retlen; 1339 if (!(nd->nd_flag & ND_NFSV2)) { 1340 if (eof || retlen == 0) 1341 tsiz = 0; 1342 } else if (retlen < len) 1343 tsiz = 0; 1344 } 1345 return (0); 1346 nfsmout: 1347 if (nd->nd_mrep != NULL) 1348 mbuf_freem(nd->nd_mrep); 1349 return (error); 1350 } 1351 1352 /* 1353 * nfs write operation 1354 */ 1355 APPLESTATIC int 1356 nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, u_char *verfp, 1357 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 1358 void *stuff) 1359 { 1360 int error, expireret = 0, retrycnt, nostateid; 1361 u_int32_t clidrev = 0; 1362 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1363 struct nfsnode *np = VTONFS(vp); 1364 struct ucred *newcred; 1365 struct nfsfh *nfhp = NULL; 1366 nfsv4stateid_t stateid; 1367 void *lckp; 1368 1369 if (nmp->nm_clp != NULL) 1370 clidrev = nmp->nm_clp->nfsc_clientidrev; 1371 newcred = cred; 1372 if (NFSHASNFSV4(nmp)) { 1373 if (p == NULL) 1374 newcred = NFSNEWCRED(cred); 1375 nfhp = np->n_fhp; 1376 } 1377 retrycnt = 0; 1378 do { 1379 lckp = NULL; 1380 nostateid = 0; 1381 if (NFSHASNFSV4(nmp)) { 1382 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1383 NFSV4OPEN_ACCESSWRITE, newcred, p, &stateid, &lckp); 1384 if (stateid.other[0] == 0 && stateid.other[1] == 0 && 1385 stateid.other[2] == 0) { 1386 nostateid = 1; 1387 printf("stateid0 in write\n"); 1388 } 1389 } 1390 1391 /* 1392 * If there is no stateid for NFSv4, it means this is an 1393 * extraneous write after close. Basically a poorly 1394 * implemented buffer cache. Just don't do the write. 1395 */ 1396 if (nostateid) 1397 error = 0; 1398 else 1399 error = nfsrpc_writerpc(vp, uiop, iomode, verfp, 1400 newcred, &stateid, p, nap, attrflagp, stuff); 1401 if (error == NFSERR_BADSTATEID) { 1402 printf("st=0x%x 0x%x 0x%x\n",stateid.other[0],stateid.other[1],stateid.other[2]); 1403 nfscl_dumpstate(nmp, 1, 1, 0, 0); 1404 } 1405 if (error == NFSERR_STALESTATEID) 1406 nfscl_initiate_recovery(nmp->nm_clp); 1407 if (lckp != NULL) 1408 nfscl_lockderef(lckp); 1409 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1410 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1411 error == NFSERR_OLDSTATEID) { 1412 (void) nfs_catnap(PZERO, "nfs_write"); 1413 } else if ((error == NFSERR_EXPIRED || 1414 error == NFSERR_BADSTATEID) && clidrev != 0) { 1415 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1416 } 1417 retrycnt++; 1418 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1419 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1420 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1421 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1422 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1423 if (error && retrycnt >= 4) 1424 error = EIO; 1425 if (NFSHASNFSV4(nmp) && p == NULL) 1426 NFSFREECRED(newcred); 1427 return (error); 1428 } 1429 1430 /* 1431 * The actual write RPC. 1432 */ 1433 static int 1434 nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, 1435 u_char *verfp, struct ucred *cred, nfsv4stateid_t *stateidp, 1436 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1437 { 1438 u_int32_t *tl; 1439 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1440 struct nfsnode *np = VTONFS(vp); 1441 int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; 1442 int wccflag = 0, wsize; 1443 int32_t backup; 1444 struct nfsrv_descript nfsd; 1445 struct nfsrv_descript *nd = &nfsd; 1446 nfsattrbit_t attrbits; 1447 1448 #ifdef DIAGNOSTIC 1449 if (uiop->uio_iovcnt != 1) 1450 panic("nfs: writerpc iovcnt > 1"); 1451 #endif 1452 *attrflagp = 0; 1453 tsiz = uio_uio_resid(uiop); 1454 NFSLOCKMNT(nmp); 1455 if (uiop->uio_offset + tsiz > 0xffffffff && 1456 !NFSHASNFSV3OR4(nmp)) { 1457 NFSUNLOCKMNT(nmp); 1458 return (EFBIG); 1459 } 1460 wsize = nmp->nm_wsize; 1461 NFSUNLOCKMNT(nmp); 1462 nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ 1463 nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ 1464 while (tsiz > 0) { 1465 nmp = VFSTONFS(vnode_mount(vp)); 1466 if (nmp == NULL) { 1467 error = ENXIO; 1468 goto nfsmout; 1469 } 1470 *attrflagp = 0; 1471 len = (tsiz > wsize) ? wsize : tsiz; 1472 NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); 1473 if (nd->nd_flag & ND_NFSV4) { 1474 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1475 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); 1476 txdr_hyper(uiop->uio_offset, tl); 1477 tl += 2; 1478 *tl++ = txdr_unsigned(*iomode); 1479 *tl = txdr_unsigned(len); 1480 } else if (nd->nd_flag & ND_NFSV3) { 1481 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); 1482 txdr_hyper(uiop->uio_offset, tl); 1483 tl += 2; 1484 *tl++ = txdr_unsigned(len); 1485 *tl++ = txdr_unsigned(*iomode); 1486 *tl = txdr_unsigned(len); 1487 } else { 1488 u_int32_t x; 1489 1490 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1491 /* 1492 * Not sure why someone changed this, since the 1493 * RFC clearly states that "beginoffset" and 1494 * "totalcount" are ignored, but it wouldn't 1495 * surprise me if there's a busted server out there. 1496 */ 1497 /* Set both "begin" and "current" to non-garbage. */ 1498 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1499 *tl++ = x; /* "begin offset" */ 1500 *tl++ = x; /* "current offset" */ 1501 x = txdr_unsigned(len); 1502 *tl++ = x; /* total to this offset */ 1503 *tl = x; /* size of this write */ 1504 1505 } 1506 nfsm_uiombuf(nd, uiop, len); 1507 /* 1508 * Although it is tempting to do a normal Getattr Op in the 1509 * NFSv4 compound, the result can be a nearly hung client 1510 * system if the Getattr asks for Owner and/or OwnerGroup. 1511 * It occurs when the client can't map either the Owner or 1512 * Owner_group name in the Getattr reply to a uid/gid. When 1513 * there is a cache miss, the kernel does an upcall to the 1514 * nfsuserd. Then, it can try and read the local /etc/passwd 1515 * or /etc/group file. It can then block in getnewbuf(), 1516 * waiting for dirty writes to be pushed to the NFS server. 1517 * The only reason this doesn't result in a complete 1518 * deadlock, is that the upcall times out and allows 1519 * the write to complete. However, progress is so slow 1520 * that it might just as well be deadlocked. 1521 * So, we just get the attributes that change with each 1522 * write Op. 1523 * nb: nfscl_loadattrcache() needs to be told that these 1524 * partial attributes from a write rpc are being 1525 * passed in, via a argument flag. 1526 */ 1527 if (nd->nd_flag & ND_NFSV4) { 1528 NFSWRITEGETATTR_ATTRBIT(&attrbits); 1529 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1530 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1531 (void) nfsrv_putattrbit(nd, &attrbits); 1532 } 1533 error = nfscl_request(nd, vp, p, cred, stuff); 1534 if (error) 1535 return (error); 1536 if (nd->nd_repstat) { 1537 /* 1538 * In case the rpc gets retried, roll 1539 * the uio fileds changed by nfsm_uiombuf() 1540 * back. 1541 */ 1542 uiop->uio_offset -= len; 1543 uio_uio_resid_add(uiop, len); 1544 uio_iov_base_add(uiop, -len); 1545 uio_iov_len_add(uiop, len); 1546 } 1547 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1548 error = nfscl_wcc_data(nd, vp, nap, attrflagp, 1549 &wccflag, stuff); 1550 if (error) 1551 goto nfsmout; 1552 } 1553 if (!nd->nd_repstat) { 1554 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1555 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1556 + NFSX_VERF); 1557 rlen = fxdr_unsigned(int, *tl++); 1558 if (rlen == 0) { 1559 error = NFSERR_IO; 1560 goto nfsmout; 1561 } else if (rlen < len) { 1562 backup = len - rlen; 1563 uio_iov_base_add(uiop, -(backup)); 1564 uio_iov_len_add(uiop, backup); 1565 uiop->uio_offset -= backup; 1566 uio_uio_resid_add(uiop, backup); 1567 len = rlen; 1568 } 1569 commit = fxdr_unsigned(int, *tl++); 1570 1571 /* 1572 * Return the lowest committment level 1573 * obtained by any of the RPCs. 1574 */ 1575 if (committed == NFSWRITE_FILESYNC) 1576 committed = commit; 1577 else if (committed == NFSWRITE_DATASYNC && 1578 commit == NFSWRITE_UNSTABLE) 1579 committed = commit; 1580 if (verfp != NULL) 1581 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 1582 NFSLOCKMNT(nmp); 1583 if (!NFSHASWRITEVERF(nmp)) { 1584 NFSBCOPY((caddr_t)tl, 1585 (caddr_t)&nmp->nm_verf[0], 1586 NFSX_VERF); 1587 NFSSETWRITEVERF(nmp); 1588 } 1589 NFSUNLOCKMNT(nmp); 1590 } 1591 if (nd->nd_flag & ND_NFSV4) 1592 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1593 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { 1594 error = nfsm_loadattr(nd, nap); 1595 if (!error) 1596 *attrflagp = NFS_LATTR_NOSHRINK; 1597 } 1598 } else { 1599 error = nd->nd_repstat; 1600 } 1601 if (error) 1602 goto nfsmout; 1603 NFSWRITERPC_SETTIME(wccflag, np, (nd->nd_flag & ND_NFSV4)); 1604 mbuf_freem(nd->nd_mrep); 1605 nd->nd_mrep = NULL; 1606 tsiz -= len; 1607 } 1608 nfsmout: 1609 if (nd->nd_mrep != NULL) 1610 mbuf_freem(nd->nd_mrep); 1611 *iomode = committed; 1612 if (nd->nd_repstat && !error) 1613 error = nd->nd_repstat; 1614 return (error); 1615 } 1616 1617 /* 1618 * nfs mknod rpc 1619 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1620 * mode set to specify the file type and the size field for rdev. 1621 */ 1622 APPLESTATIC int 1623 nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1624 u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, 1625 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1626 int *attrflagp, int *dattrflagp, void *dstuff) 1627 { 1628 u_int32_t *tl; 1629 int error = 0; 1630 struct nfsrv_descript nfsd, *nd = &nfsd; 1631 nfsattrbit_t attrbits; 1632 1633 *nfhpp = NULL; 1634 *attrflagp = 0; 1635 *dattrflagp = 0; 1636 if (namelen > NFS_MAXNAMLEN) 1637 return (ENAMETOOLONG); 1638 NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); 1639 if (nd->nd_flag & ND_NFSV4) { 1640 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1641 *tl++ = vtonfsv34_type(vtyp); 1642 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1643 *tl = txdr_unsigned(NFSMINOR(rdev)); 1644 } 1645 (void) nfsm_strtom(nd, name, namelen); 1646 if (nd->nd_flag & ND_NFSV3) { 1647 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1648 *tl = vtonfsv34_type(vtyp); 1649 } 1650 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1651 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1652 if ((nd->nd_flag & ND_NFSV3) && 1653 (vtyp == VCHR || vtyp == VBLK)) { 1654 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1655 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1656 *tl = txdr_unsigned(NFSMINOR(rdev)); 1657 } 1658 if (nd->nd_flag & ND_NFSV4) { 1659 NFSGETATTR_ATTRBIT(&attrbits); 1660 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1661 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1662 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1663 (void) nfsrv_putattrbit(nd, &attrbits); 1664 } 1665 if (nd->nd_flag & ND_NFSV2) 1666 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); 1667 error = nfscl_request(nd, dvp, p, cred, dstuff); 1668 if (error) 1669 return (error); 1670 if (nd->nd_flag & ND_NFSV4) 1671 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1672 if (!nd->nd_repstat) { 1673 if (nd->nd_flag & ND_NFSV4) { 1674 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1675 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1676 if (error) 1677 goto nfsmout; 1678 } 1679 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1680 if (error) 1681 goto nfsmout; 1682 } 1683 if (nd->nd_flag & ND_NFSV3) 1684 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1685 if (!error && nd->nd_repstat) 1686 error = nd->nd_repstat; 1687 nfsmout: 1688 mbuf_freem(nd->nd_mrep); 1689 return (error); 1690 } 1691 1692 /* 1693 * nfs file create call 1694 * Mostly just call the approriate routine. (I separated out v4, so that 1695 * error recovery wouldn't be as difficult.) 1696 */ 1697 APPLESTATIC int 1698 nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1699 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1700 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1701 int *attrflagp, int *dattrflagp, void *dstuff) 1702 { 1703 int error = 0, newone, expireret = 0, retrycnt, unlocked; 1704 struct nfsclowner *owp; 1705 struct nfscldeleg *dp; 1706 struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); 1707 u_int32_t clidrev; 1708 1709 if (NFSHASNFSV4(nmp)) { 1710 retrycnt = 0; 1711 do { 1712 dp = NULL; 1713 error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | 1714 NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, 1715 NULL, 1); 1716 if (error) 1717 return (error); 1718 if (nmp->nm_clp != NULL) 1719 clidrev = nmp->nm_clp->nfsc_clientidrev; 1720 else 1721 clidrev = 0; 1722 error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, fmode, 1723 owp, &dp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1724 dstuff, &unlocked); 1725 if (dp != NULL) 1726 (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, 1727 (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); 1728 nfscl_ownerrelease(owp, error, newone, unlocked); 1729 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1730 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 1731 (void) nfs_catnap(PZERO, "nfs_open"); 1732 } else if ((error == NFSERR_EXPIRED || 1733 error == NFSERR_BADSTATEID) && clidrev != 0) { 1734 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1735 retrycnt++; 1736 } 1737 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1738 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1739 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1740 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1741 if (error && retrycnt >= 4) 1742 error = EIO; 1743 } else { 1744 error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, 1745 fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1746 dstuff); 1747 } 1748 return (error); 1749 } 1750 1751 /* 1752 * The create rpc for v2 and 3. 1753 */ 1754 static int 1755 nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1756 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1757 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1758 int *attrflagp, int *dattrflagp, void *dstuff) 1759 { 1760 u_int32_t *tl; 1761 int error = 0; 1762 struct nfsrv_descript nfsd, *nd = &nfsd; 1763 1764 *nfhpp = NULL; 1765 *attrflagp = 0; 1766 *dattrflagp = 0; 1767 if (namelen > NFS_MAXNAMLEN) 1768 return (ENAMETOOLONG); 1769 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1770 (void) nfsm_strtom(nd, name, namelen); 1771 if (nd->nd_flag & ND_NFSV3) { 1772 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1773 if (fmode & O_EXCL) { 1774 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1775 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1776 *tl++ = cverf.lval[0]; 1777 *tl = cverf.lval[1]; 1778 } else { 1779 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1780 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1781 } 1782 } else { 1783 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); 1784 } 1785 error = nfscl_request(nd, dvp, p, cred, dstuff); 1786 if (error) 1787 return (error); 1788 if (nd->nd_repstat == 0) { 1789 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1790 if (error) 1791 goto nfsmout; 1792 } 1793 if (nd->nd_flag & ND_NFSV3) 1794 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1795 if (nd->nd_repstat != 0 && error == 0) 1796 error = nd->nd_repstat; 1797 nfsmout: 1798 mbuf_freem(nd->nd_mrep); 1799 return (error); 1800 } 1801 1802 static int 1803 nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1804 nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, 1805 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 1806 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 1807 int *dattrflagp, void *dstuff, int *unlockedp) 1808 { 1809 u_int32_t *tl; 1810 int error = 0, deleg, newone, ret, acesize, limitby; 1811 struct nfsrv_descript nfsd, *nd = &nfsd; 1812 struct nfsclopen *op; 1813 struct nfscldeleg *dp = NULL; 1814 struct nfsnode *np; 1815 struct nfsfh *nfhp; 1816 nfsattrbit_t attrbits; 1817 nfsv4stateid_t stateid; 1818 u_int32_t rflags; 1819 1820 *unlockedp = 0; 1821 *nfhpp = NULL; 1822 *dpp = NULL; 1823 *attrflagp = 0; 1824 *dattrflagp = 0; 1825 if (namelen > NFS_MAXNAMLEN) 1826 return (ENAMETOOLONG); 1827 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1828 /* 1829 * For V4, this is actually an Open op. 1830 */ 1831 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1832 *tl++ = txdr_unsigned(owp->nfsow_seqid); 1833 *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | 1834 NFSV4OPEN_ACCESSREAD); 1835 *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); 1836 *tl++ = owp->nfsow_clp->nfsc_clientid.lval[0]; 1837 *tl = owp->nfsow_clp->nfsc_clientid.lval[1]; 1838 (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); 1839 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1840 *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); 1841 if (fmode & O_EXCL) { 1842 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1843 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1844 *tl++ = cverf.lval[0]; 1845 *tl = cverf.lval[1]; 1846 } else { 1847 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1848 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1849 } 1850 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1851 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 1852 (void) nfsm_strtom(nd, name, namelen); 1853 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1854 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1855 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1856 NFSGETATTR_ATTRBIT(&attrbits); 1857 (void) nfsrv_putattrbit(nd, &attrbits); 1858 error = nfscl_request(nd, dvp, p, cred, dstuff); 1859 if (error) 1860 return (error); 1861 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1862 if (error) 1863 goto nfsmout; 1864 NFSCL_INCRSEQID(owp->nfsow_seqid, nd); 1865 if (nd->nd_repstat == 0) { 1866 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1867 6 * NFSX_UNSIGNED); 1868 stateid.seqid = *tl++; 1869 stateid.other[0] = *tl++; 1870 stateid.other[1] = *tl++; 1871 stateid.other[2] = *tl; 1872 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 1873 (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1874 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1875 deleg = fxdr_unsigned(int, *tl); 1876 if (deleg == NFSV4OPEN_DELEGATEREAD || 1877 deleg == NFSV4OPEN_DELEGATEWRITE) { 1878 if (!(owp->nfsow_clp->nfsc_flags & 1879 NFSCLFLAGS_FIRSTDELEG)) 1880 owp->nfsow_clp->nfsc_flags |= 1881 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 1882 MALLOC(dp, struct nfscldeleg *, 1883 sizeof (struct nfscldeleg) + NFSX_V4FHMAX, 1884 M_NFSCLDELEG, M_WAITOK); 1885 LIST_INIT(&dp->nfsdl_owner); 1886 LIST_INIT(&dp->nfsdl_lock); 1887 dp->nfsdl_clp = owp->nfsow_clp; 1888 newnfs_copyincred(cred, &dp->nfsdl_cred); 1889 nfscl_lockinit(&dp->nfsdl_rwlock); 1890 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1891 NFSX_UNSIGNED); 1892 dp->nfsdl_stateid.seqid = *tl++; 1893 dp->nfsdl_stateid.other[0] = *tl++; 1894 dp->nfsdl_stateid.other[1] = *tl++; 1895 dp->nfsdl_stateid.other[2] = *tl++; 1896 ret = fxdr_unsigned(int, *tl); 1897 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 1898 dp->nfsdl_flags = NFSCLDL_WRITE; 1899 /* 1900 * Indicates how much the file can grow. 1901 */ 1902 NFSM_DISSECT(tl, u_int32_t *, 1903 3 * NFSX_UNSIGNED); 1904 limitby = fxdr_unsigned(int, *tl++); 1905 switch (limitby) { 1906 case NFSV4OPEN_LIMITSIZE: 1907 dp->nfsdl_sizelimit = fxdr_hyper(tl); 1908 break; 1909 case NFSV4OPEN_LIMITBLOCKS: 1910 dp->nfsdl_sizelimit = 1911 fxdr_unsigned(u_int64_t, *tl++); 1912 dp->nfsdl_sizelimit *= 1913 fxdr_unsigned(u_int64_t, *tl); 1914 break; 1915 default: 1916 error = NFSERR_BADXDR; 1917 goto nfsmout; 1918 }; 1919 } else { 1920 dp->nfsdl_flags = NFSCLDL_READ; 1921 } 1922 if (ret) 1923 dp->nfsdl_flags |= NFSCLDL_RECALL; 1924 error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, 1925 &acesize, p); 1926 if (error) 1927 goto nfsmout; 1928 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 1929 error = NFSERR_BADXDR; 1930 goto nfsmout; 1931 } 1932 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1933 if (error) 1934 goto nfsmout; 1935 if (dp != NULL && *attrflagp) { 1936 dp->nfsdl_change = nnap->na_filerev; 1937 dp->nfsdl_modtime = nnap->na_mtime; 1938 dp->nfsdl_flags |= NFSCLDL_MODTIMESET; 1939 } 1940 /* 1941 * We can now complete the Open state. 1942 */ 1943 nfhp = *nfhpp; 1944 if (dp != NULL) { 1945 dp->nfsdl_fhlen = nfhp->nfh_len; 1946 NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); 1947 } 1948 /* 1949 * Get an Open structure that will be 1950 * attached to the OpenOwner, acquired already. 1951 */ 1952 error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, 1953 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, 1954 cred, p, NULL, &op, &newone, NULL, 0); 1955 if (error) 1956 goto nfsmout; 1957 op->nfso_stateid = stateid; 1958 newnfs_copyincred(cred, &op->nfso_cred); 1959 if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { 1960 do { 1961 ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, 1962 nfhp->nfh_len, op, cred, p); 1963 if (ret == NFSERR_DELAY) 1964 (void) nfs_catnap(PZERO, "nfs_create"); 1965 } while (ret == NFSERR_DELAY); 1966 error = ret; 1967 } 1968 1969 /* 1970 * If the server is handing out delegations, but we didn't 1971 * get one because an OpenConfirm was required, try the 1972 * Open again, to get a delegation. This is a harmless no-op, 1973 * from a server's point of view. 1974 */ 1975 if ((rflags & NFSV4OPEN_RESULTCONFIRM) && 1976 (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && 1977 !error && dp == NULL) { 1978 np = VTONFS(dvp); 1979 do { 1980 ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, 1981 np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 1982 nfhp->nfh_fh, nfhp->nfh_len, 1983 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, 1984 name, namelen, &dp, 0, 0x0, cred, p, 0, 1); 1985 if (ret == NFSERR_DELAY) 1986 (void) nfs_catnap(PZERO, "nfs_crt2"); 1987 } while (ret == NFSERR_DELAY); 1988 if (ret) { 1989 if (dp != NULL) 1990 FREE((caddr_t)dp, M_NFSCLDELEG); 1991 if (ret == NFSERR_STALECLIENTID || 1992 ret == NFSERR_STALEDONTRECOVER) 1993 error = ret; 1994 } 1995 } 1996 nfscl_openrelease(op, error, newone); 1997 *unlockedp = 1; 1998 } 1999 if (nd->nd_repstat != 0 && error == 0) 2000 error = nd->nd_repstat; 2001 if (error == NFSERR_STALECLIENTID) 2002 nfscl_initiate_recovery(owp->nfsow_clp); 2003 nfsmout: 2004 if (!error) 2005 *dpp = dp; 2006 else if (dp != NULL) 2007 FREE((caddr_t)dp, M_NFSCLDELEG); 2008 mbuf_freem(nd->nd_mrep); 2009 return (error); 2010 } 2011 2012 /* 2013 * Nfs remove rpc 2014 */ 2015 APPLESTATIC int 2016 nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, 2017 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, 2018 void *dstuff) 2019 { 2020 u_int32_t *tl; 2021 struct nfsrv_descript nfsd, *nd = &nfsd; 2022 struct nfsnode *np; 2023 struct nfsmount *nmp; 2024 nfsv4stateid_t dstateid; 2025 int error, ret = 0, i; 2026 2027 *dattrflagp = 0; 2028 if (namelen > NFS_MAXNAMLEN) 2029 return (ENAMETOOLONG); 2030 nmp = VFSTONFS(vnode_mount(dvp)); 2031 tryagain: 2032 if (NFSHASNFSV4(nmp) && ret == 0) { 2033 ret = nfscl_removedeleg(vp, p, &dstateid); 2034 if (ret == 1) { 2035 NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); 2036 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 2037 NFSX_UNSIGNED); 2038 *tl++ = dstateid.seqid; 2039 *tl++ = dstateid.other[0]; 2040 *tl++ = dstateid.other[1]; 2041 *tl++ = dstateid.other[2]; 2042 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2043 np = VTONFS(dvp); 2044 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2045 np->n_fhp->nfh_len, 0); 2046 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2047 *tl = txdr_unsigned(NFSV4OP_REMOVE); 2048 } 2049 } else { 2050 ret = 0; 2051 } 2052 if (ret == 0) 2053 NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); 2054 (void) nfsm_strtom(nd, name, namelen); 2055 error = nfscl_request(nd, dvp, p, cred, dstuff); 2056 if (error) 2057 return (error); 2058 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2059 /* For NFSv4, parse out any Delereturn replies. */ 2060 if (ret > 0 && nd->nd_repstat != 0 && 2061 (nd->nd_flag & ND_NOMOREDATA)) { 2062 /* 2063 * If the Delegreturn failed, try again without 2064 * it. The server will Recall, as required. 2065 */ 2066 mbuf_freem(nd->nd_mrep); 2067 goto tryagain; 2068 } 2069 for (i = 0; i < (ret * 2); i++) { 2070 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2071 ND_NFSV4) { 2072 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2073 if (*(tl + 1)) 2074 nd->nd_flag |= ND_NOMOREDATA; 2075 } 2076 } 2077 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2078 } 2079 if (nd->nd_repstat && !error) 2080 error = nd->nd_repstat; 2081 nfsmout: 2082 mbuf_freem(nd->nd_mrep); 2083 return (error); 2084 } 2085 2086 /* 2087 * Do an nfs rename rpc. 2088 */ 2089 APPLESTATIC int 2090 nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, 2091 vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, 2092 NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, 2093 int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) 2094 { 2095 u_int32_t *tl; 2096 struct nfsrv_descript nfsd, *nd = &nfsd; 2097 struct nfsmount *nmp; 2098 struct nfsnode *np; 2099 nfsattrbit_t attrbits; 2100 nfsv4stateid_t fdstateid, tdstateid; 2101 int error = 0, ret = 0, gottd = 0, gotfd = 0, i; 2102 2103 *fattrflagp = 0; 2104 *tattrflagp = 0; 2105 nmp = VFSTONFS(vnode_mount(fdvp)); 2106 if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) 2107 return (ENAMETOOLONG); 2108 tryagain: 2109 if (NFSHASNFSV4(nmp) && ret == 0) { 2110 ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, 2111 &tdstateid, &gottd, p); 2112 if (gotfd && gottd) { 2113 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); 2114 } else if (gotfd) { 2115 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); 2116 } else if (gottd) { 2117 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); 2118 } 2119 if (gotfd) { 2120 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2121 *tl++ = fdstateid.seqid; 2122 *tl++ = fdstateid.other[0]; 2123 *tl++ = fdstateid.other[1]; 2124 *tl = fdstateid.other[2]; 2125 if (gottd) { 2126 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2127 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2128 np = VTONFS(tvp); 2129 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2130 np->n_fhp->nfh_len, 0); 2131 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2132 *tl = txdr_unsigned(NFSV4OP_DELEGRETURN); 2133 } 2134 } 2135 if (gottd) { 2136 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2137 *tl++ = tdstateid.seqid; 2138 *tl++ = tdstateid.other[0]; 2139 *tl++ = tdstateid.other[1]; 2140 *tl = tdstateid.other[2]; 2141 } 2142 if (ret > 0) { 2143 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2144 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2145 np = VTONFS(fdvp); 2146 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2147 np->n_fhp->nfh_len, 0); 2148 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2149 *tl = txdr_unsigned(NFSV4OP_SAVEFH); 2150 } 2151 } else { 2152 ret = 0; 2153 } 2154 if (ret == 0) 2155 NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); 2156 if (nd->nd_flag & ND_NFSV4) { 2157 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2158 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2159 NFSWCCATTR_ATTRBIT(&attrbits); 2160 (void) nfsrv_putattrbit(nd, &attrbits); 2161 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2162 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2163 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2164 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2165 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2166 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2167 (void) nfsrv_putattrbit(nd, &attrbits); 2168 nd->nd_flag |= ND_V4WCCATTR; 2169 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2170 *tl = txdr_unsigned(NFSV4OP_RENAME); 2171 } 2172 (void) nfsm_strtom(nd, fnameptr, fnamelen); 2173 if (!(nd->nd_flag & ND_NFSV4)) 2174 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2175 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2176 (void) nfsm_strtom(nd, tnameptr, tnamelen); 2177 error = nfscl_request(nd, fdvp, p, cred, fstuff); 2178 if (error) 2179 return (error); 2180 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2181 /* For NFSv4, parse out any Delereturn replies. */ 2182 if (ret > 0 && nd->nd_repstat != 0 && 2183 (nd->nd_flag & ND_NOMOREDATA)) { 2184 /* 2185 * If the Delegreturn failed, try again without 2186 * it. The server will Recall, as required. 2187 */ 2188 mbuf_freem(nd->nd_mrep); 2189 goto tryagain; 2190 } 2191 for (i = 0; i < (ret * 2); i++) { 2192 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2193 ND_NFSV4) { 2194 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2195 if (*(tl + 1)) { 2196 if (i == 0 && ret > 1) { 2197 /* 2198 * If the Delegreturn failed, try again 2199 * without it. The server will Recall, as 2200 * required. 2201 * If ret > 1, the first iteration of this 2202 * loop is the second DelegReturn result. 2203 */ 2204 mbuf_freem(nd->nd_mrep); 2205 goto tryagain; 2206 } else { 2207 nd->nd_flag |= ND_NOMOREDATA; 2208 } 2209 } 2210 } 2211 } 2212 /* Now, the first wcc attribute reply. */ 2213 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2214 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2215 if (*(tl + 1)) 2216 nd->nd_flag |= ND_NOMOREDATA; 2217 } 2218 error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, 2219 fstuff); 2220 /* and the second wcc attribute reply. */ 2221 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && 2222 !error) { 2223 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2224 if (*(tl + 1)) 2225 nd->nd_flag |= ND_NOMOREDATA; 2226 } 2227 if (!error) 2228 error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, 2229 NULL, tstuff); 2230 } 2231 if (nd->nd_repstat && !error) 2232 error = nd->nd_repstat; 2233 nfsmout: 2234 mbuf_freem(nd->nd_mrep); 2235 return (error); 2236 } 2237 2238 /* 2239 * nfs hard link create rpc 2240 */ 2241 APPLESTATIC int 2242 nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, 2243 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2244 struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) 2245 { 2246 u_int32_t *tl; 2247 struct nfsrv_descript nfsd, *nd = &nfsd; 2248 nfsattrbit_t attrbits; 2249 int error = 0; 2250 2251 *attrflagp = 0; 2252 *dattrflagp = 0; 2253 if (namelen > NFS_MAXNAMLEN) 2254 return (ENAMETOOLONG); 2255 NFSCL_REQSTART(nd, NFSPROC_LINK, vp); 2256 if (nd->nd_flag & ND_NFSV4) { 2257 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2258 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2259 } 2260 (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, 2261 VTONFS(dvp)->n_fhp->nfh_len, 0); 2262 if (nd->nd_flag & ND_NFSV4) { 2263 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2264 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2265 NFSWCCATTR_ATTRBIT(&attrbits); 2266 (void) nfsrv_putattrbit(nd, &attrbits); 2267 nd->nd_flag |= ND_V4WCCATTR; 2268 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2269 *tl = txdr_unsigned(NFSV4OP_LINK); 2270 } 2271 (void) nfsm_strtom(nd, name, namelen); 2272 error = nfscl_request(nd, vp, p, cred, dstuff); 2273 if (error) 2274 return (error); 2275 if (nd->nd_flag & ND_NFSV3) { 2276 error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); 2277 if (!error) 2278 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2279 NULL, dstuff); 2280 } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2281 /* 2282 * First, parse out the PutFH and Getattr result. 2283 */ 2284 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2285 if (!(*(tl + 1))) 2286 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2287 if (*(tl + 1)) 2288 nd->nd_flag |= ND_NOMOREDATA; 2289 /* 2290 * Get the pre-op attributes. 2291 */ 2292 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2293 } 2294 if (nd->nd_repstat && !error) 2295 error = nd->nd_repstat; 2296 nfsmout: 2297 mbuf_freem(nd->nd_mrep); 2298 return (error); 2299 } 2300 2301 /* 2302 * nfs symbolic link create rpc 2303 */ 2304 APPLESTATIC int 2305 nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, 2306 struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2307 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2308 int *dattrflagp, void *dstuff) 2309 { 2310 u_int32_t *tl; 2311 struct nfsrv_descript nfsd, *nd = &nfsd; 2312 struct nfsmount *nmp; 2313 int slen, error = 0; 2314 2315 *nfhpp = NULL; 2316 *attrflagp = 0; 2317 *dattrflagp = 0; 2318 nmp = VFSTONFS(vnode_mount(dvp)); 2319 slen = strlen(target); 2320 if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) 2321 return (ENAMETOOLONG); 2322 NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); 2323 if (nd->nd_flag & ND_NFSV4) { 2324 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2325 *tl = txdr_unsigned(NFLNK); 2326 (void) nfsm_strtom(nd, target, slen); 2327 } 2328 (void) nfsm_strtom(nd, name, namelen); 2329 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2330 nfscl_fillsattr(nd, vap, dvp, 0, 0); 2331 if (!(nd->nd_flag & ND_NFSV4)) 2332 (void) nfsm_strtom(nd, target, slen); 2333 if (nd->nd_flag & ND_NFSV2) 2334 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2335 error = nfscl_request(nd, dvp, p, cred, dstuff); 2336 if (error) 2337 return (error); 2338 if (nd->nd_flag & ND_NFSV4) 2339 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2340 if ((nd->nd_flag & ND_NFSV3) && !error) { 2341 if (!nd->nd_repstat) 2342 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2343 if (!error) 2344 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2345 NULL, dstuff); 2346 } 2347 if (nd->nd_repstat && !error) 2348 error = nd->nd_repstat; 2349 mbuf_freem(nd->nd_mrep); 2350 /* 2351 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2352 */ 2353 if (error == EEXIST) 2354 error = 0; 2355 return (error); 2356 } 2357 2358 /* 2359 * nfs make dir rpc 2360 */ 2361 APPLESTATIC int 2362 nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, 2363 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2364 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2365 int *dattrflagp, void *dstuff) 2366 { 2367 u_int32_t *tl; 2368 struct nfsrv_descript nfsd, *nd = &nfsd; 2369 nfsattrbit_t attrbits; 2370 int error = 0; 2371 2372 *nfhpp = NULL; 2373 *attrflagp = 0; 2374 *dattrflagp = 0; 2375 if (namelen > NFS_MAXNAMLEN) 2376 return (ENAMETOOLONG); 2377 NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); 2378 if (nd->nd_flag & ND_NFSV4) { 2379 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2380 *tl = txdr_unsigned(NFDIR); 2381 } 2382 (void) nfsm_strtom(nd, name, namelen); 2383 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2384 if (nd->nd_flag & ND_NFSV4) { 2385 NFSGETATTR_ATTRBIT(&attrbits); 2386 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2387 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2388 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2389 (void) nfsrv_putattrbit(nd, &attrbits); 2390 } 2391 error = nfscl_request(nd, dvp, p, cred, dstuff); 2392 if (error) 2393 return (error); 2394 if (nd->nd_flag & ND_NFSV4) 2395 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2396 if (!nd->nd_repstat && !error) { 2397 if (nd->nd_flag & ND_NFSV4) { 2398 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2399 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 2400 } 2401 if (!error) 2402 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2403 } 2404 if ((nd->nd_flag & ND_NFSV3) && !error) 2405 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2406 if (nd->nd_repstat && !error) 2407 error = nd->nd_repstat; 2408 nfsmout: 2409 mbuf_freem(nd->nd_mrep); 2410 /* 2411 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry. 2412 */ 2413 if (error == EEXIST) 2414 error = 0; 2415 return (error); 2416 } 2417 2418 /* 2419 * nfs remove directory call 2420 */ 2421 APPLESTATIC int 2422 nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, 2423 NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) 2424 { 2425 struct nfsrv_descript nfsd, *nd = &nfsd; 2426 int error = 0; 2427 2428 *dattrflagp = 0; 2429 if (namelen > NFS_MAXNAMLEN) 2430 return (ENAMETOOLONG); 2431 NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); 2432 (void) nfsm_strtom(nd, name, namelen); 2433 error = nfscl_request(nd, dvp, p, cred, dstuff); 2434 if (error) 2435 return (error); 2436 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2437 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2438 if (nd->nd_repstat && !error) 2439 error = nd->nd_repstat; 2440 mbuf_freem(nd->nd_mrep); 2441 /* 2442 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2443 */ 2444 if (error == ENOENT) 2445 error = 0; 2446 return (error); 2447 } 2448 2449 /* 2450 * Readdir rpc. 2451 * Always returns with either uio_resid unchanged, if you are at the 2452 * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks 2453 * filled in. 2454 * I felt this would allow caching of directory blocks more easily 2455 * than returning a pertially filled block. 2456 * Directory offset cookies: 2457 * Oh my, what to do with them... 2458 * I can think of three ways to deal with them: 2459 * 1 - have the layer above these RPCs maintain a map between logical 2460 * directory byte offsets and the NFS directory offset cookies 2461 * 2 - pass the opaque directory offset cookies up into userland 2462 * and let the libc functions deal with them, via the system call 2463 * 3 - return them to userland in the "struct dirent", so future versions 2464 * of libc can use them and do whatever is necessary to amke things work 2465 * above these rpc calls, in the meantime 2466 * For now, I do #3 by "hiding" the directory offset cookies after the 2467 * d_name field in struct dirent. This is space inside d_reclen that 2468 * will be ignored by anything that doesn't know about them. 2469 * The directory offset cookies are filled in as the last 8 bytes of 2470 * each directory entry, after d_name. Someday, the userland libc 2471 * functions may be able to use these. In the meantime, it satisfies 2472 * OpenBSD's requirements for cookies being returned. 2473 * If expects the directory offset cookie for the read to be in uio_offset 2474 * and returns the one for the next entry after this directory block in 2475 * there, as well. 2476 */ 2477 APPLESTATIC int 2478 nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2479 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2480 int *eofp, void *stuff) 2481 { 2482 int len, left; 2483 struct dirent *dp = NULL; 2484 u_int32_t *tl; 2485 nfsquad_t cookie, ncookie; 2486 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2487 struct nfsnode *dnp = VTONFS(vp); 2488 struct nfsvattr nfsva; 2489 struct nfsrv_descript nfsd, *nd = &nfsd; 2490 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2491 int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; 2492 long dotfileid, dotdotfileid = 0; 2493 u_int32_t fakefileno = 0xffffffff, rderr; 2494 char *cp; 2495 nfsattrbit_t attrbits, dattrbits; 2496 u_int32_t *tl2 = NULL; 2497 size_t tresid; 2498 2499 #ifdef DIAGNOSTIC 2500 if (uiop->uio_iovcnt != 1 || (uio_uio_resid(uiop) & (DIRBLKSIZ - 1))) 2501 panic("nfs readdirrpc bad uio"); 2502 #endif 2503 2504 /* 2505 * There is no point in reading a lot more than uio_resid, however 2506 * adding one additional DIRBLKSIZ makes sense. Since uio_resid 2507 * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this 2508 * will never make readsize > nm_readdirsize. 2509 */ 2510 readsize = nmp->nm_readdirsize; 2511 if (readsize > uio_uio_resid(uiop)) 2512 readsize = uio_uio_resid(uiop) + DIRBLKSIZ; 2513 2514 *attrflagp = 0; 2515 if (eofp) 2516 *eofp = 0; 2517 tresid = uio_uio_resid(uiop); 2518 cookie.lval[0] = cookiep->nfsuquad[0]; 2519 cookie.lval[1] = cookiep->nfsuquad[1]; 2520 nd->nd_mrep = NULL; 2521 2522 /* 2523 * For NFSv4, first create the "." and ".." entries. 2524 */ 2525 if (NFSHASNFSV4(nmp)) { 2526 reqsize = 6 * NFSX_UNSIGNED; 2527 NFSGETATTR_ATTRBIT(&dattrbits); 2528 NFSZERO_ATTRBIT(&attrbits); 2529 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2530 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); 2531 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2532 NFSATTRBIT_MOUNTEDONFILEID)) { 2533 NFSSETBIT_ATTRBIT(&attrbits, 2534 NFSATTRBIT_MOUNTEDONFILEID); 2535 gotmnton = 1; 2536 } else { 2537 /* 2538 * Must fake it. Use the fileno, except when the 2539 * fsid is != to that of the directory. For that 2540 * case, generate a fake fileno that is not the same. 2541 */ 2542 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2543 gotmnton = 0; 2544 } 2545 2546 /* 2547 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2548 */ 2549 if (uiop->uio_offset == 0) { 2550 #if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2551 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2552 #else 2553 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2554 #endif 2555 if (error) 2556 return (error); 2557 dotfileid = nfsva.na_fileid; 2558 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2559 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2560 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2561 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2562 (void) nfsrv_putattrbit(nd, &attrbits); 2563 error = nfscl_request(nd, vp, p, cred, stuff); 2564 if (error) 2565 return (error); 2566 if (nd->nd_repstat == 0) { 2567 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2568 len = fxdr_unsigned(int, *(tl + 2)); 2569 if (len > 0 && len <= NFSX_V4FHMAX) 2570 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2571 else 2572 error = EPERM; 2573 if (!error) { 2574 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2575 nfsva.na_mntonfileno = 0xffffffff; 2576 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2577 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2578 NULL, NULL, NULL, p, cred); 2579 if (error) { 2580 dotdotfileid = dotfileid; 2581 } else if (gotmnton) { 2582 if (nfsva.na_mntonfileno != 0xffffffff) 2583 dotdotfileid = nfsva.na_mntonfileno; 2584 else 2585 dotdotfileid = nfsva.na_fileid; 2586 } else if (nfsva.na_filesid[0] == 2587 dnp->n_vattr.na_filesid[0] && 2588 nfsva.na_filesid[1] == 2589 dnp->n_vattr.na_filesid[1]) { 2590 dotdotfileid = nfsva.na_fileid; 2591 } else { 2592 do { 2593 fakefileno--; 2594 } while (fakefileno == 2595 nfsva.na_fileid); 2596 dotdotfileid = fakefileno; 2597 } 2598 } 2599 } else if (nd->nd_repstat == NFSERR_NOENT) { 2600 /* 2601 * Lookupp returns NFSERR_NOENT when we are 2602 * at the root, so just use the current dir. 2603 */ 2604 nd->nd_repstat = 0; 2605 dotdotfileid = dotfileid; 2606 } else { 2607 error = nd->nd_repstat; 2608 } 2609 mbuf_freem(nd->nd_mrep); 2610 if (error) 2611 return (error); 2612 nd->nd_mrep = NULL; 2613 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2614 dp->d_type = DT_DIR; 2615 dp->d_fileno = dotfileid; 2616 dp->d_namlen = 1; 2617 dp->d_name[0] = '.'; 2618 dp->d_name[1] = '\0'; 2619 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2620 /* 2621 * Just make these offset cookie 0. 2622 */ 2623 tl = (u_int32_t *)&dp->d_name[4]; 2624 *tl++ = 0; 2625 *tl = 0; 2626 blksiz += dp->d_reclen; 2627 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2628 uiop->uio_offset += dp->d_reclen; 2629 uio_iov_base_add(uiop, dp->d_reclen); 2630 uio_iov_len_add(uiop, -(dp->d_reclen)); 2631 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2632 dp->d_type = DT_DIR; 2633 dp->d_fileno = dotdotfileid; 2634 dp->d_namlen = 2; 2635 dp->d_name[0] = '.'; 2636 dp->d_name[1] = '.'; 2637 dp->d_name[2] = '\0'; 2638 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2639 /* 2640 * Just make these offset cookie 0. 2641 */ 2642 tl = (u_int32_t *)&dp->d_name[4]; 2643 *tl++ = 0; 2644 *tl = 0; 2645 blksiz += dp->d_reclen; 2646 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2647 uiop->uio_offset += dp->d_reclen; 2648 uio_iov_base_add(uiop, dp->d_reclen); 2649 uio_iov_len_add(uiop, -(dp->d_reclen)); 2650 } 2651 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); 2652 } else { 2653 reqsize = 5 * NFSX_UNSIGNED; 2654 } 2655 2656 2657 /* 2658 * Loop around doing readdir rpc's of size readsize. 2659 * The stopping criteria is EOF or buffer full. 2660 */ 2661 while (more_dirs && bigenough) { 2662 *attrflagp = 0; 2663 NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); 2664 if (nd->nd_flag & ND_NFSV2) { 2665 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2666 *tl++ = cookie.lval[1]; 2667 *tl = txdr_unsigned(readsize); 2668 } else { 2669 NFSM_BUILD(tl, u_int32_t *, reqsize); 2670 *tl++ = cookie.lval[0]; 2671 *tl++ = cookie.lval[1]; 2672 if (cookie.qval == 0) { 2673 *tl++ = 0; 2674 *tl++ = 0; 2675 } else { 2676 NFSLOCKNODE(dnp); 2677 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2678 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2679 NFSUNLOCKNODE(dnp); 2680 } 2681 if (nd->nd_flag & ND_NFSV4) { 2682 *tl++ = txdr_unsigned(readsize); 2683 *tl = txdr_unsigned(readsize); 2684 (void) nfsrv_putattrbit(nd, &attrbits); 2685 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2686 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2687 (void) nfsrv_putattrbit(nd, &dattrbits); 2688 } else { 2689 *tl = txdr_unsigned(readsize); 2690 } 2691 } 2692 error = nfscl_request(nd, vp, p, cred, stuff); 2693 if (error) 2694 return (error); 2695 if (!(nd->nd_flag & ND_NFSV2)) { 2696 if (nd->nd_flag & ND_NFSV3) 2697 error = nfscl_postop_attr(nd, nap, attrflagp, 2698 stuff); 2699 if (!nd->nd_repstat && !error) { 2700 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 2701 NFSLOCKNODE(dnp); 2702 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2703 dnp->n_cookieverf.nfsuquad[1] = *tl; 2704 NFSUNLOCKNODE(dnp); 2705 } 2706 } 2707 if (nd->nd_repstat || error) { 2708 if (!error) 2709 error = nd->nd_repstat; 2710 goto nfsmout; 2711 } 2712 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2713 more_dirs = fxdr_unsigned(int, *tl); 2714 if (!more_dirs) 2715 tryformoredirs = 0; 2716 2717 /* loop thru the dir entries, doctoring them to 4bsd form */ 2718 while (more_dirs && bigenough) { 2719 if (nd->nd_flag & ND_NFSV4) { 2720 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2721 ncookie.lval[0] = *tl++; 2722 ncookie.lval[1] = *tl++; 2723 len = fxdr_unsigned(int, *tl); 2724 } else if (nd->nd_flag & ND_NFSV3) { 2725 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2726 nfsva.na_fileid = 2727 fxdr_unsigned(long, *++tl); 2728 len = fxdr_unsigned(int, *++tl); 2729 } else { 2730 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2731 nfsva.na_fileid = 2732 fxdr_unsigned(long, *tl++); 2733 len = fxdr_unsigned(int, *tl); 2734 } 2735 if (len <= 0 || len > NFS_MAXNAMLEN) { 2736 error = EBADRPC; 2737 goto nfsmout; 2738 } 2739 tlen = NFSM_RNDUP(len); 2740 if (tlen == len) 2741 tlen += 4; /* To ensure null termination */ 2742 left = DIRBLKSIZ - blksiz; 2743 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > left) { 2744 dp->d_reclen += left; 2745 uio_iov_base_add(uiop, left); 2746 uio_iov_len_add(uiop, -(left)); 2747 uio_uio_resid_add(uiop, -(left)); 2748 uiop->uio_offset += left; 2749 blksiz = 0; 2750 } 2751 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 2752 bigenough = 0; 2753 if (bigenough) { 2754 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2755 dp->d_namlen = len; 2756 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 2757 dp->d_type = DT_UNKNOWN; 2758 blksiz += dp->d_reclen; 2759 if (blksiz == DIRBLKSIZ) 2760 blksiz = 0; 2761 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 2762 uiop->uio_offset += DIRHDSIZ; 2763 uio_iov_base_add(uiop, DIRHDSIZ); 2764 uio_iov_len_add(uiop, -(DIRHDSIZ)); 2765 error = nfsm_mbufuio(nd, uiop, len); 2766 if (error) 2767 goto nfsmout; 2768 cp = CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2769 tlen -= len; 2770 *cp = '\0'; /* null terminate */ 2771 cp += tlen; /* points to cookie storage */ 2772 tl2 = (u_int32_t *)cp; 2773 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 2774 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 2775 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 2776 uiop->uio_offset += (tlen + NFSX_HYPER); 2777 } else { 2778 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2779 if (error) 2780 goto nfsmout; 2781 } 2782 if (nd->nd_flag & ND_NFSV4) { 2783 rderr = 0; 2784 nfsva.na_mntonfileno = 0xffffffff; 2785 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2786 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2787 NULL, NULL, &rderr, p, cred); 2788 if (error) 2789 goto nfsmout; 2790 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2791 } else if (nd->nd_flag & ND_NFSV3) { 2792 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2793 ncookie.lval[0] = *tl++; 2794 ncookie.lval[1] = *tl++; 2795 } else { 2796 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2797 ncookie.lval[0] = 0; 2798 ncookie.lval[1] = *tl++; 2799 } 2800 if (bigenough) { 2801 if (nd->nd_flag & ND_NFSV4) { 2802 if (rderr) { 2803 dp->d_fileno = 0; 2804 } else { 2805 if (gotmnton) { 2806 if (nfsva.na_mntonfileno != 0xffffffff) 2807 dp->d_fileno = nfsva.na_mntonfileno; 2808 else 2809 dp->d_fileno = nfsva.na_fileid; 2810 } else if (nfsva.na_filesid[0] == 2811 dnp->n_vattr.na_filesid[0] && 2812 nfsva.na_filesid[1] == 2813 dnp->n_vattr.na_filesid[1]) { 2814 dp->d_fileno = nfsva.na_fileid; 2815 } else { 2816 do { 2817 fakefileno--; 2818 } while (fakefileno == 2819 nfsva.na_fileid); 2820 dp->d_fileno = fakefileno; 2821 } 2822 dp->d_type = vtonfs_dtype(nfsva.na_type); 2823 } 2824 } else { 2825 dp->d_fileno = nfsva.na_fileid; 2826 } 2827 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 2828 ncookie.lval[0]; 2829 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 2830 ncookie.lval[1]; 2831 } 2832 more_dirs = fxdr_unsigned(int, *tl); 2833 } 2834 /* 2835 * If at end of rpc data, get the eof boolean 2836 */ 2837 if (!more_dirs) { 2838 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2839 eof = fxdr_unsigned(int, *tl); 2840 if (tryformoredirs) 2841 more_dirs = !eof; 2842 if (nd->nd_flag & ND_NFSV4) { 2843 error = nfscl_postop_attr(nd, nap, attrflagp, 2844 stuff); 2845 if (error) 2846 goto nfsmout; 2847 } 2848 } 2849 mbuf_freem(nd->nd_mrep); 2850 nd->nd_mrep = NULL; 2851 } 2852 /* 2853 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 2854 * by increasing d_reclen for the last record. 2855 */ 2856 if (blksiz > 0) { 2857 left = DIRBLKSIZ - blksiz; 2858 dp->d_reclen += left; 2859 uio_iov_base_add(uiop, left); 2860 uio_iov_len_add(uiop, -(left)); 2861 uio_uio_resid_add(uiop, -(left)); 2862 uiop->uio_offset += left; 2863 } 2864 2865 /* 2866 * If returning no data, assume end of file. 2867 * If not bigenough, return not end of file, since you aren't 2868 * returning all the data 2869 * Otherwise, return the eof flag from the server. 2870 */ 2871 if (eofp) { 2872 if (tresid == ((size_t)(uio_uio_resid(uiop)))) 2873 *eofp = 1; 2874 else if (!bigenough) 2875 *eofp = 0; 2876 else 2877 *eofp = eof; 2878 } 2879 2880 /* 2881 * Add extra empty records to any remaining DIRBLKSIZ chunks. 2882 */ 2883 while (uio_uio_resid(uiop) > 0 && ((size_t)(uio_uio_resid(uiop))) != tresid) { 2884 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2885 dp->d_type = DT_UNKNOWN; 2886 dp->d_fileno = 0; 2887 dp->d_namlen = 0; 2888 dp->d_name[0] = '\0'; 2889 tl = (u_int32_t *)&dp->d_name[4]; 2890 *tl++ = cookie.lval[0]; 2891 *tl = cookie.lval[1]; 2892 dp->d_reclen = DIRBLKSIZ; 2893 uio_iov_base_add(uiop, DIRBLKSIZ); 2894 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 2895 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 2896 uiop->uio_offset += DIRBLKSIZ; 2897 } 2898 2899 nfsmout: 2900 if (nd->nd_mrep != NULL) 2901 mbuf_freem(nd->nd_mrep); 2902 return (error); 2903 } 2904 2905 #ifndef APPLE 2906 /* 2907 * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). 2908 * (Also used for NFS V4 when mount flag set.) 2909 * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) 2910 */ 2911 APPLESTATIC int 2912 nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2913 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2914 int *eofp, void *stuff) 2915 { 2916 int len, left; 2917 struct dirent *dp = NULL; 2918 u_int32_t *tl; 2919 vnode_t newvp = NULLVP; 2920 struct nfsrv_descript nfsd, *nd = &nfsd; 2921 struct nameidata nami, *ndp = &nami; 2922 struct componentname *cnp = &ndp->ni_cnd; 2923 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2924 struct nfsnode *dnp = VTONFS(vp), *np; 2925 struct nfsvattr nfsva; 2926 struct nfsfh *nfhp; 2927 nfsquad_t cookie, ncookie; 2928 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2929 int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; 2930 int unlocknewvp = 0; 2931 long dotfileid, dotdotfileid = 0, fileno = 0; 2932 char *cp; 2933 nfsattrbit_t attrbits, dattrbits; 2934 size_t tresid; 2935 u_int32_t *tl2 = NULL, fakefileno = 0xffffffff, rderr; 2936 2937 #ifdef DIAGNOSTIC 2938 if (uiop->uio_iovcnt != 1 || (uio_uio_resid(uiop) & (DIRBLKSIZ - 1))) 2939 panic("nfs readdirplusrpc bad uio"); 2940 #endif 2941 *attrflagp = 0; 2942 if (eofp != NULL) 2943 *eofp = 0; 2944 ndp->ni_dvp = vp; 2945 nd->nd_mrep = NULL; 2946 cookie.lval[0] = cookiep->nfsuquad[0]; 2947 cookie.lval[1] = cookiep->nfsuquad[1]; 2948 tresid = uio_uio_resid(uiop); 2949 2950 /* 2951 * For NFSv4, first create the "." and ".." entries. 2952 */ 2953 if (NFSHASNFSV4(nmp)) { 2954 NFSGETATTR_ATTRBIT(&dattrbits); 2955 NFSZERO_ATTRBIT(&attrbits); 2956 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2957 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2958 NFSATTRBIT_MOUNTEDONFILEID)) { 2959 NFSSETBIT_ATTRBIT(&attrbits, 2960 NFSATTRBIT_MOUNTEDONFILEID); 2961 gotmnton = 1; 2962 } else { 2963 /* 2964 * Must fake it. Use the fileno, except when the 2965 * fsid is != to that of the directory. For that 2966 * case, generate a fake fileno that is not the same. 2967 */ 2968 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2969 gotmnton = 0; 2970 } 2971 2972 /* 2973 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2974 */ 2975 if (uiop->uio_offset == 0) { 2976 #if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2977 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2978 #else 2979 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2980 #endif 2981 if (error) 2982 return (error); 2983 dotfileid = nfsva.na_fileid; 2984 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2985 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2986 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2987 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2988 (void) nfsrv_putattrbit(nd, &attrbits); 2989 error = nfscl_request(nd, vp, p, cred, stuff); 2990 if (error) 2991 return (error); 2992 if (nd->nd_repstat == 0) { 2993 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2994 len = fxdr_unsigned(int, *(tl + 2)); 2995 if (len > 0 && len <= NFSX_V4FHMAX) 2996 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2997 else 2998 error = EPERM; 2999 if (!error) { 3000 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 3001 nfsva.na_mntonfileno = 0xffffffff; 3002 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 3003 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3004 NULL, NULL, NULL, p, cred); 3005 if (error) { 3006 dotdotfileid = dotfileid; 3007 } else if (gotmnton) { 3008 if (nfsva.na_mntonfileno != 0xffffffff) 3009 dotdotfileid = nfsva.na_mntonfileno; 3010 else 3011 dotdotfileid = nfsva.na_fileid; 3012 } else if (nfsva.na_filesid[0] == 3013 dnp->n_vattr.na_filesid[0] && 3014 nfsva.na_filesid[1] == 3015 dnp->n_vattr.na_filesid[1]) { 3016 dotdotfileid = nfsva.na_fileid; 3017 } else { 3018 do { 3019 fakefileno--; 3020 } while (fakefileno == 3021 nfsva.na_fileid); 3022 dotdotfileid = fakefileno; 3023 } 3024 } 3025 } else if (nd->nd_repstat == NFSERR_NOENT) { 3026 /* 3027 * Lookupp returns NFSERR_NOENT when we are 3028 * at the root, so just use the current dir. 3029 */ 3030 nd->nd_repstat = 0; 3031 dotdotfileid = dotfileid; 3032 } else { 3033 error = nd->nd_repstat; 3034 } 3035 mbuf_freem(nd->nd_mrep); 3036 if (error) 3037 return (error); 3038 nd->nd_mrep = NULL; 3039 dp = (struct dirent *)uio_iov_base(uiop); 3040 dp->d_type = DT_DIR; 3041 dp->d_fileno = dotfileid; 3042 dp->d_namlen = 1; 3043 dp->d_name[0] = '.'; 3044 dp->d_name[1] = '\0'; 3045 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3046 /* 3047 * Just make these offset cookie 0. 3048 */ 3049 tl = (u_int32_t *)&dp->d_name[4]; 3050 *tl++ = 0; 3051 *tl = 0; 3052 blksiz += dp->d_reclen; 3053 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3054 uiop->uio_offset += dp->d_reclen; 3055 uio_iov_base_add(uiop, dp->d_reclen); 3056 uio_iov_len_add(uiop, -(dp->d_reclen)); 3057 dp = (struct dirent *)uio_iov_base(uiop); 3058 dp->d_type = DT_DIR; 3059 dp->d_fileno = dotdotfileid; 3060 dp->d_namlen = 2; 3061 dp->d_name[0] = '.'; 3062 dp->d_name[1] = '.'; 3063 dp->d_name[2] = '\0'; 3064 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3065 /* 3066 * Just make these offset cookie 0. 3067 */ 3068 tl = (u_int32_t *)&dp->d_name[4]; 3069 *tl++ = 0; 3070 *tl = 0; 3071 blksiz += dp->d_reclen; 3072 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3073 uiop->uio_offset += dp->d_reclen; 3074 uio_iov_base_add(uiop, dp->d_reclen); 3075 uio_iov_len_add(uiop, -(dp->d_reclen)); 3076 } 3077 NFSREADDIRPLUS_ATTRBIT(&attrbits); 3078 if (gotmnton) 3079 NFSSETBIT_ATTRBIT(&attrbits, 3080 NFSATTRBIT_MOUNTEDONFILEID); 3081 } 3082 3083 /* 3084 * Loop around doing readdir rpc's of size nm_readdirsize. 3085 * The stopping criteria is EOF or buffer full. 3086 */ 3087 while (more_dirs && bigenough) { 3088 *attrflagp = 0; 3089 NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); 3090 NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 3091 *tl++ = cookie.lval[0]; 3092 *tl++ = cookie.lval[1]; 3093 if (cookie.qval == 0) { 3094 *tl++ = 0; 3095 *tl++ = 0; 3096 } else { 3097 NFSLOCKNODE(dnp); 3098 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 3099 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 3100 NFSUNLOCKNODE(dnp); 3101 } 3102 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 3103 *tl = txdr_unsigned(nmp->nm_readdirsize); 3104 if (nd->nd_flag & ND_NFSV4) { 3105 (void) nfsrv_putattrbit(nd, &attrbits); 3106 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3107 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3108 (void) nfsrv_putattrbit(nd, &dattrbits); 3109 } 3110 error = nfscl_request(nd, vp, p, cred, stuff); 3111 if (error) 3112 return (error); 3113 if (nd->nd_flag & ND_NFSV3) 3114 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3115 if (nd->nd_repstat || error) { 3116 if (!error) 3117 error = nd->nd_repstat; 3118 goto nfsmout; 3119 } 3120 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3121 NFSLOCKNODE(dnp); 3122 dnp->n_cookieverf.nfsuquad[0] = *tl++; 3123 dnp->n_cookieverf.nfsuquad[1] = *tl++; 3124 NFSUNLOCKNODE(dnp); 3125 more_dirs = fxdr_unsigned(int, *tl); 3126 if (!more_dirs) 3127 tryformoredirs = 0; 3128 3129 /* loop thru the dir entries, doctoring them to 4bsd form */ 3130 while (more_dirs && bigenough) { 3131 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3132 if (nd->nd_flag & ND_NFSV4) { 3133 ncookie.lval[0] = *tl++; 3134 ncookie.lval[1] = *tl++; 3135 } else { 3136 fileno = fxdr_unsigned(long, *++tl); 3137 tl++; 3138 } 3139 len = fxdr_unsigned(int, *tl); 3140 if (len <= 0 || len > NFS_MAXNAMLEN) { 3141 error = EBADRPC; 3142 goto nfsmout; 3143 } 3144 tlen = NFSM_RNDUP(len); 3145 if (tlen == len) 3146 tlen += 4; /* To ensure null termination */ 3147 left = DIRBLKSIZ - blksiz; 3148 if ((tlen + DIRHDSIZ + NFSX_HYPER) > left) { 3149 dp->d_reclen += left; 3150 uio_iov_base_add(uiop, left); 3151 uio_iov_len_add(uiop, -(left)); 3152 uio_uio_resid_add(uiop, -(left)); 3153 uiop->uio_offset += left; 3154 blksiz = 0; 3155 } 3156 if ((tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 3157 bigenough = 0; 3158 if (bigenough) { 3159 dp = (struct dirent *)uio_iov_base(uiop); 3160 dp->d_namlen = len; 3161 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 3162 dp->d_type = DT_UNKNOWN; 3163 blksiz += dp->d_reclen; 3164 if (blksiz == DIRBLKSIZ) 3165 blksiz = 0; 3166 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 3167 uiop->uio_offset += DIRHDSIZ; 3168 uio_iov_base_add(uiop, DIRHDSIZ); 3169 uio_iov_len_add(uiop, -(DIRHDSIZ)); 3170 cnp->cn_nameptr = uio_iov_base(uiop); 3171 cnp->cn_namelen = len; 3172 NFSCNHASHZERO(cnp); 3173 error = nfsm_mbufuio(nd, uiop, len); 3174 if (error) 3175 goto nfsmout; 3176 cp = uio_iov_base(uiop); 3177 tlen -= len; 3178 *cp = '\0'; 3179 cp += tlen; /* points to cookie storage */ 3180 tl2 = (u_int32_t *)cp; 3181 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 3182 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 3183 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 3184 uiop->uio_offset += (tlen + NFSX_HYPER); 3185 } else { 3186 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3187 if (error) 3188 goto nfsmout; 3189 } 3190 nfhp = NULL; 3191 if (nd->nd_flag & ND_NFSV3) { 3192 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3193 ncookie.lval[0] = *tl++; 3194 ncookie.lval[1] = *tl++; 3195 attrflag = fxdr_unsigned(int, *tl); 3196 if (attrflag) { 3197 error = nfsm_loadattr(nd, &nfsva); 3198 if (error) 3199 goto nfsmout; 3200 } 3201 NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); 3202 if (*tl) { 3203 error = nfsm_getfh(nd, &nfhp); 3204 if (error) 3205 goto nfsmout; 3206 } 3207 if (!attrflag && nfhp != NULL) { 3208 FREE((caddr_t)nfhp, M_NFSFH); 3209 nfhp = NULL; 3210 } 3211 } else { 3212 rderr = 0; 3213 nfsva.na_mntonfileno = 0xffffffff; 3214 error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, 3215 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3216 NULL, NULL, &rderr, p, cred); 3217 if (error) 3218 goto nfsmout; 3219 } 3220 3221 if (bigenough) { 3222 if (nd->nd_flag & ND_NFSV4) { 3223 if (rderr) { 3224 dp->d_fileno = 0; 3225 } else if (gotmnton) { 3226 if (nfsva.na_mntonfileno != 0xffffffff) 3227 dp->d_fileno = nfsva.na_mntonfileno; 3228 else 3229 dp->d_fileno = nfsva.na_fileid; 3230 } else if (nfsva.na_filesid[0] == 3231 dnp->n_vattr.na_filesid[0] && 3232 nfsva.na_filesid[1] == 3233 dnp->n_vattr.na_filesid[1]) { 3234 dp->d_fileno = nfsva.na_fileid; 3235 } else { 3236 do { 3237 fakefileno--; 3238 } while (fakefileno == 3239 nfsva.na_fileid); 3240 dp->d_fileno = fakefileno; 3241 } 3242 } else { 3243 dp->d_fileno = fileno; 3244 } 3245 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 3246 ncookie.lval[0]; 3247 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 3248 ncookie.lval[1]; 3249 3250 if (nfhp != NULL) { 3251 if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, 3252 dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { 3253 VREF(vp); 3254 newvp = vp; 3255 unlocknewvp = 0; 3256 FREE((caddr_t)nfhp, M_NFSFH); 3257 np = dnp; 3258 } else { 3259 error = nfscl_nget(vnode_mount(vp), vp, 3260 nfhp, cnp, p, &np, NULL); 3261 if (!error) { 3262 newvp = NFSTOV(np); 3263 unlocknewvp = 1; 3264 } 3265 } 3266 nfhp = NULL; 3267 if (newvp != NULLVP) { 3268 error = nfscl_loadattrcache(&newvp, 3269 &nfsva, NULL, NULL, 0, 0); 3270 if (error) { 3271 if (unlocknewvp) 3272 vput(newvp); 3273 else 3274 vrele(newvp); 3275 goto nfsmout; 3276 } 3277 dp->d_type = 3278 vtonfs_dtype(np->n_vattr.na_type); 3279 ndp->ni_vp = newvp; 3280 NFSCNHASH(cnp, HASHINIT); 3281 if (cnp->cn_namelen <= NCHNAMLEN) { 3282 np->n_ctime = 3283 np->n_vattr.na_ctime.tv_sec; 3284 cache_enter(ndp->ni_dvp,ndp->ni_vp,cnp); 3285 } 3286 if (unlocknewvp) 3287 vput(newvp); 3288 else 3289 vrele(newvp); 3290 newvp = NULLVP; 3291 } 3292 } 3293 } else if (nfhp != NULL) { 3294 FREE((caddr_t)nfhp, M_NFSFH); 3295 } 3296 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3297 more_dirs = fxdr_unsigned(int, *tl); 3298 } 3299 /* 3300 * If at end of rpc data, get the eof boolean 3301 */ 3302 if (!more_dirs) { 3303 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3304 eof = fxdr_unsigned(int, *tl); 3305 if (tryformoredirs) 3306 more_dirs = !eof; 3307 if (nd->nd_flag & ND_NFSV4) { 3308 error = nfscl_postop_attr(nd, nap, attrflagp, 3309 stuff); 3310 if (error) 3311 goto nfsmout; 3312 } 3313 } 3314 mbuf_freem(nd->nd_mrep); 3315 nd->nd_mrep = NULL; 3316 } 3317 /* 3318 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 3319 * by increasing d_reclen for the last record. 3320 */ 3321 if (blksiz > 0) { 3322 left = DIRBLKSIZ - blksiz; 3323 dp->d_reclen += left; 3324 uio_iov_base_add(uiop, left); 3325 uio_iov_len_add(uiop, -(left)); 3326 uio_uio_resid_add(uiop, -(left)); 3327 uiop->uio_offset += left; 3328 } 3329 3330 /* 3331 * If returning no data, assume end of file. 3332 * If not bigenough, return not end of file, since you aren't 3333 * returning all the data 3334 * Otherwise, return the eof flag from the server. 3335 */ 3336 if (eofp != NULL) { 3337 if (tresid == uio_uio_resid(uiop)) 3338 *eofp = 1; 3339 else if (!bigenough) 3340 *eofp = 0; 3341 else 3342 *eofp = eof; 3343 } 3344 3345 /* 3346 * Add extra empty records to any remaining DIRBLKSIZ chunks. 3347 */ 3348 while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { 3349 dp = (struct dirent *)uio_iov_base(uiop); 3350 dp->d_type = DT_UNKNOWN; 3351 dp->d_fileno = 0; 3352 dp->d_namlen = 0; 3353 dp->d_name[0] = '\0'; 3354 tl = (u_int32_t *)&dp->d_name[4]; 3355 *tl++ = cookie.lval[0]; 3356 *tl = cookie.lval[1]; 3357 dp->d_reclen = DIRBLKSIZ; 3358 uio_iov_base_add(uiop, DIRBLKSIZ); 3359 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 3360 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 3361 uiop->uio_offset += DIRBLKSIZ; 3362 } 3363 3364 nfsmout: 3365 if (nd->nd_mrep != NULL) 3366 mbuf_freem(nd->nd_mrep); 3367 return (error); 3368 } 3369 #endif /* !APPLE */ 3370 3371 /* 3372 * Nfs commit rpc 3373 */ 3374 APPLESTATIC int 3375 nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, 3376 NFSPROC_T *p, u_char *verfp, struct nfsvattr *nap, int *attrflagp, 3377 void *stuff) 3378 { 3379 u_int32_t *tl; 3380 struct nfsrv_descript nfsd, *nd = &nfsd; 3381 nfsattrbit_t attrbits; 3382 int error; 3383 3384 *attrflagp = 0; 3385 NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); 3386 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3387 txdr_hyper(offset, tl); 3388 tl += 2; 3389 *tl = txdr_unsigned(cnt); 3390 if (nd->nd_flag & ND_NFSV4) { 3391 /* 3392 * And do a Getattr op. 3393 */ 3394 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3395 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3396 NFSGETATTR_ATTRBIT(&attrbits); 3397 (void) nfsrv_putattrbit(nd, &attrbits); 3398 } 3399 error = nfscl_request(nd, vp, p, cred, stuff); 3400 if (error) 3401 return (error); 3402 error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); 3403 if (!error && !nd->nd_repstat) { 3404 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3405 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 3406 if (nd->nd_flag & ND_NFSV4) 3407 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3408 } 3409 nfsmout: 3410 if (!error && nd->nd_repstat) 3411 error = nd->nd_repstat; 3412 mbuf_freem(nd->nd_mrep); 3413 return (error); 3414 } 3415 3416 /* 3417 * NFS byte range lock rpc. 3418 * (Mostly just calls one of the three lower level RPC routines.) 3419 */ 3420 APPLESTATIC int 3421 nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, 3422 int reclaim, struct ucred *cred, NFSPROC_T *p) 3423 { 3424 struct nfscllockowner *lp; 3425 struct nfsclclient *clp; 3426 struct nfsfh *nfhp; 3427 struct nfsrv_descript nfsd, *nd = &nfsd; 3428 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 3429 u_int64_t off, len; 3430 off_t start, end; 3431 u_int32_t clidrev = 0; 3432 int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; 3433 int callcnt, dorpc; 3434 3435 /* 3436 * Convert the flock structure into a start and end and do POSIX 3437 * bounds checking. 3438 */ 3439 switch (fl->l_whence) { 3440 case SEEK_SET: 3441 case SEEK_CUR: 3442 /* 3443 * Caller is responsible for adding any necessary offset 3444 * when SEEK_CUR is used. 3445 */ 3446 start = fl->l_start; 3447 off = fl->l_start; 3448 break; 3449 case SEEK_END: 3450 start = size + fl->l_start; 3451 off = size + fl->l_start; 3452 break; 3453 default: 3454 return (EINVAL); 3455 }; 3456 if (start < 0) 3457 return (EINVAL); 3458 if (fl->l_len != 0) { 3459 end = start + fl->l_len - 1; 3460 if (end < start) 3461 return (EINVAL); 3462 } 3463 3464 len = fl->l_len; 3465 if (len == 0) 3466 len = NFS64BITSSET; 3467 retrycnt = 0; 3468 do { 3469 nd->nd_repstat = 0; 3470 if (op == F_GETLK) { 3471 error = nfscl_getcl(vp, cred, p, &clp); 3472 if (error) 3473 return (error); 3474 error = nfscl_lockt(vp, clp, off, len, fl, p); 3475 if (!error) { 3476 clidrev = clp->nfsc_clientidrev; 3477 error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, 3478 p); 3479 } else if (error == -1) { 3480 error = 0; 3481 } 3482 nfscl_clientrelease(clp); 3483 } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { 3484 /* 3485 * We must loop around for all lockowner cases. 3486 */ 3487 callcnt = 0; 3488 error = nfscl_getcl(vp, cred, p, &clp); 3489 if (error) 3490 return (error); 3491 do { 3492 error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, 3493 clp, &lp, &dorpc); 3494 /* 3495 * If it returns a NULL lp, we're done. 3496 */ 3497 if (lp == NULL) { 3498 if (callcnt == 0) 3499 nfscl_clientrelease(clp); 3500 else 3501 nfscl_releasealllocks(clp, vp, p); 3502 return (error); 3503 } 3504 if (nmp->nm_clp != NULL) 3505 clidrev = nmp->nm_clp->nfsc_clientidrev; 3506 else 3507 clidrev = 0; 3508 /* 3509 * If the server doesn't support Posix lock semantics, 3510 * only allow locks on the entire file, since it won't 3511 * handle overlapping byte ranges. 3512 * There might still be a problem when a lock 3513 * upgrade/downgrade (read<->write) occurs, since the 3514 * server "might" expect an unlock first? 3515 */ 3516 if (dorpc && (lp->nfsl_open->nfso_posixlock || 3517 (off == 0 && len == NFS64BITSSET))) { 3518 /* 3519 * Since the lock records will go away, we must 3520 * wait for grace and delay here. 3521 */ 3522 do { 3523 error = nfsrpc_locku(nd, nmp, lp, off, len, 3524 NFSV4LOCKT_READ, cred, p, 0); 3525 if ((nd->nd_repstat == NFSERR_GRACE || 3526 nd->nd_repstat == NFSERR_DELAY) && 3527 error == 0) 3528 (void) nfs_catnap(PZERO, "nfs_advlock"); 3529 } while ((nd->nd_repstat == NFSERR_GRACE || 3530 nd->nd_repstat == NFSERR_DELAY) && error == 0); 3531 } 3532 callcnt++; 3533 } while (error == 0 && nd->nd_repstat == 0); 3534 nfscl_releasealllocks(clp, vp, p); 3535 } else if (op == F_SETLK) { 3536 error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, 3537 NULL, 0, NULL, NULL, &lp, &newone, &donelocally); 3538 if (error || donelocally) { 3539 return (error); 3540 } 3541 if (nmp->nm_clp != NULL) 3542 clidrev = nmp->nm_clp->nfsc_clientidrev; 3543 else 3544 clidrev = 0; 3545 nfhp = VTONFS(vp)->n_fhp; 3546 if (!lp->nfsl_open->nfso_posixlock && 3547 (off != 0 || len != NFS64BITSSET)) { 3548 error = EINVAL; 3549 } else { 3550 error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, 3551 nfhp->nfh_len, lp, newone, reclaim, off, 3552 len, fl->l_type, cred, p, 0); 3553 } 3554 if (!error) 3555 error = nd->nd_repstat; 3556 nfscl_lockrelease(lp, error, newone); 3557 } else { 3558 error = EINVAL; 3559 } 3560 if (!error) 3561 error = nd->nd_repstat; 3562 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 3563 error == NFSERR_STALEDONTRECOVER || 3564 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY) { 3565 (void) nfs_catnap(PZERO, "nfs_advlock"); 3566 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 3567 && clidrev != 0) { 3568 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 3569 retrycnt++; 3570 } 3571 } while (error == NFSERR_GRACE || 3572 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || 3573 error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || 3574 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 3575 expireret == 0 && clidrev != 0 && retrycnt < 4)); 3576 if (error && retrycnt >= 4) 3577 error = EIO; 3578 return (error); 3579 } 3580 3581 /* 3582 * The lower level routine for the LockT case. 3583 */ 3584 APPLESTATIC int 3585 nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, 3586 struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, 3587 struct ucred *cred, NFSPROC_T *p) 3588 { 3589 u_int32_t *tl; 3590 int error, type, size; 3591 u_int8_t own[NFSV4CL_LOCKNAMELEN]; 3592 3593 NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); 3594 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3595 if (fl->l_type == F_RDLCK) 3596 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3597 else 3598 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3599 txdr_hyper(off, tl); 3600 tl += 2; 3601 txdr_hyper(len, tl); 3602 tl += 2; 3603 *tl++ = clp->nfsc_clientid.lval[0]; 3604 *tl = clp->nfsc_clientid.lval[1]; 3605 nfscl_filllockowner(p, own); 3606 (void) nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN); 3607 error = nfscl_request(nd, vp, p, cred, NULL); 3608 if (error) 3609 return (error); 3610 if (nd->nd_repstat == 0) { 3611 fl->l_type = F_UNLCK; 3612 } else if (nd->nd_repstat == NFSERR_DENIED) { 3613 nd->nd_repstat = 0; 3614 fl->l_whence = SEEK_SET; 3615 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3616 fl->l_start = fxdr_hyper(tl); 3617 tl += 2; 3618 len = fxdr_hyper(tl); 3619 tl += 2; 3620 if (len == NFS64BITSSET) 3621 fl->l_len = 0; 3622 else 3623 fl->l_len = len; 3624 type = fxdr_unsigned(int, *tl++); 3625 if (type == NFSV4LOCKT_WRITE) 3626 fl->l_type = F_WRLCK; 3627 else 3628 fl->l_type = F_RDLCK; 3629 /* 3630 * XXX For now, I have no idea what to do with the 3631 * conflicting lock_owner, so I'll just set the pid == 0 3632 * and skip over the lock_owner. 3633 */ 3634 fl->l_pid = (pid_t)0; 3635 tl += 2; 3636 size = fxdr_unsigned(int, *tl); 3637 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3638 error = EBADRPC; 3639 if (!error) 3640 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3641 } else if (nd->nd_repstat == NFSERR_STALECLIENTID) 3642 nfscl_initiate_recovery(clp); 3643 nfsmout: 3644 mbuf_freem(nd->nd_mrep); 3645 return (error); 3646 } 3647 3648 /* 3649 * Lower level function that performs the LockU RPC. 3650 */ 3651 static int 3652 nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, 3653 struct nfscllockowner *lp, u_int64_t off, u_int64_t len, 3654 u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) 3655 { 3656 u_int32_t *tl; 3657 int error; 3658 3659 nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, 3660 lp->nfsl_open->nfso_fhlen, NULL); 3661 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3662 *tl++ = txdr_unsigned(type); 3663 *tl = txdr_unsigned(lp->nfsl_seqid); 3664 if (nfstest_outofseq && 3665 (arc4random() % nfstest_outofseq) == 0) 3666 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3667 tl++; 3668 *tl++ = lp->nfsl_stateid.seqid; 3669 *tl++ = lp->nfsl_stateid.other[0]; 3670 *tl++ = lp->nfsl_stateid.other[1]; 3671 *tl++ = lp->nfsl_stateid.other[2]; 3672 txdr_hyper(off, tl); 3673 tl += 2; 3674 txdr_hyper(len, tl); 3675 if (syscred) 3676 nd->nd_flag |= ND_USEGSSNAME; 3677 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3678 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3679 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3680 if (error) 3681 return (error); 3682 if (nd->nd_repstat == 0) { 3683 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3684 lp->nfsl_stateid.seqid = *tl++; 3685 lp->nfsl_stateid.other[0] = *tl++; 3686 lp->nfsl_stateid.other[1] = *tl++; 3687 lp->nfsl_stateid.other[2] = *tl; 3688 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3689 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3690 nfsmout: 3691 mbuf_freem(nd->nd_mrep); 3692 return (error); 3693 } 3694 3695 /* 3696 * The actual Lock RPC. 3697 */ 3698 APPLESTATIC int 3699 nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, 3700 u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, 3701 int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, 3702 NFSPROC_T *p, int syscred) 3703 { 3704 u_int32_t *tl; 3705 int error, size; 3706 3707 nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL); 3708 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3709 if (type == F_RDLCK) 3710 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3711 else 3712 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3713 *tl++ = txdr_unsigned(reclaim); 3714 txdr_hyper(off, tl); 3715 tl += 2; 3716 txdr_hyper(len, tl); 3717 tl += 2; 3718 if (newone) { 3719 *tl = newnfs_true; 3720 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3721 2 * NFSX_UNSIGNED + NFSX_HYPER); 3722 *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); 3723 *tl++ = lp->nfsl_open->nfso_stateid.seqid; 3724 *tl++ = lp->nfsl_open->nfso_stateid.other[0]; 3725 *tl++ = lp->nfsl_open->nfso_stateid.other[1]; 3726 *tl++ = lp->nfsl_open->nfso_stateid.other[2]; 3727 *tl++ = txdr_unsigned(lp->nfsl_seqid); 3728 *tl++ = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 3729 *tl = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 3730 (void) nfsm_strtom(nd, lp->nfsl_owner, NFSV4CL_LOCKNAMELEN); 3731 } else { 3732 *tl = newnfs_false; 3733 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3734 *tl++ = lp->nfsl_stateid.seqid; 3735 *tl++ = lp->nfsl_stateid.other[0]; 3736 *tl++ = lp->nfsl_stateid.other[1]; 3737 *tl++ = lp->nfsl_stateid.other[2]; 3738 *tl = txdr_unsigned(lp->nfsl_seqid); 3739 if (nfstest_outofseq && 3740 (arc4random() % nfstest_outofseq) == 0) 3741 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3742 } 3743 if (syscred) 3744 nd->nd_flag |= ND_USEGSSNAME; 3745 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 3746 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3747 if (error) 3748 return (error); 3749 if (newone) 3750 NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); 3751 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3752 if (nd->nd_repstat == 0) { 3753 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3754 lp->nfsl_stateid.seqid = *tl++; 3755 lp->nfsl_stateid.other[0] = *tl++; 3756 lp->nfsl_stateid.other[1] = *tl++; 3757 lp->nfsl_stateid.other[2] = *tl; 3758 } else if (nd->nd_repstat == NFSERR_DENIED) { 3759 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3760 size = fxdr_unsigned(int, *(tl + 7)); 3761 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3762 error = EBADRPC; 3763 if (!error) 3764 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3765 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3766 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3767 nfsmout: 3768 mbuf_freem(nd->nd_mrep); 3769 return (error); 3770 } 3771 3772 /* 3773 * nfs statfs rpc 3774 * (always called with the vp for the mount point) 3775 */ 3776 APPLESTATIC int 3777 nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, 3778 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3779 void *stuff) 3780 { 3781 u_int32_t *tl = NULL; 3782 struct nfsrv_descript nfsd, *nd = &nfsd; 3783 struct nfsmount *nmp; 3784 nfsattrbit_t attrbits; 3785 int error; 3786 3787 *attrflagp = 0; 3788 nmp = VFSTONFS(vnode_mount(vp)); 3789 if (NFSHASNFSV4(nmp)) { 3790 /* 3791 * For V4, you actually do a getattr. 3792 */ 3793 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3794 NFSSTATFS_GETATTRBIT(&attrbits); 3795 (void) nfsrv_putattrbit(nd, &attrbits); 3796 nd->nd_flag |= ND_USEGSSNAME; 3797 error = nfscl_request(nd, vp, p, cred, stuff); 3798 if (error) 3799 return (error); 3800 if (nd->nd_repstat == 0) { 3801 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3802 NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, 3803 cred); 3804 if (!error) { 3805 nmp->nm_fsid[0] = nap->na_filesid[0]; 3806 nmp->nm_fsid[1] = nap->na_filesid[1]; 3807 NFSSETHASSETFSID(nmp); 3808 *attrflagp = 1; 3809 } 3810 } else { 3811 error = nd->nd_repstat; 3812 } 3813 if (error) 3814 goto nfsmout; 3815 } else { 3816 NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); 3817 error = nfscl_request(nd, vp, p, cred, stuff); 3818 if (error) 3819 return (error); 3820 if (nd->nd_flag & ND_NFSV3) { 3821 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3822 if (error) 3823 goto nfsmout; 3824 } 3825 if (nd->nd_repstat) { 3826 error = nd->nd_repstat; 3827 goto nfsmout; 3828 } 3829 NFSM_DISSECT(tl, u_int32_t *, 3830 NFSX_STATFS(nd->nd_flag & ND_NFSV3)); 3831 } 3832 if (NFSHASNFSV3(nmp)) { 3833 sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; 3834 sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; 3835 sbp->sf_abytes = fxdr_hyper(tl); tl += 2; 3836 sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; 3837 sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; 3838 sbp->sf_afiles = fxdr_hyper(tl); tl += 2; 3839 sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); 3840 } else if (NFSHASNFSV4(nmp) == 0) { 3841 sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); 3842 sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); 3843 sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); 3844 sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); 3845 sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); 3846 } 3847 nfsmout: 3848 mbuf_freem(nd->nd_mrep); 3849 return (error); 3850 } 3851 3852 /* 3853 * nfs pathconf rpc 3854 */ 3855 APPLESTATIC int 3856 nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, 3857 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3858 void *stuff) 3859 { 3860 struct nfsrv_descript nfsd, *nd = &nfsd; 3861 struct nfsmount *nmp; 3862 u_int32_t *tl; 3863 nfsattrbit_t attrbits; 3864 int error; 3865 3866 *attrflagp = 0; 3867 nmp = VFSTONFS(vnode_mount(vp)); 3868 if (NFSHASNFSV4(nmp)) { 3869 /* 3870 * For V4, you actually do a getattr. 3871 */ 3872 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3873 NFSPATHCONF_GETATTRBIT(&attrbits); 3874 (void) nfsrv_putattrbit(nd, &attrbits); 3875 nd->nd_flag |= ND_USEGSSNAME; 3876 error = nfscl_request(nd, vp, p, cred, stuff); 3877 if (error) 3878 return (error); 3879 if (nd->nd_repstat == 0) { 3880 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3881 pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, 3882 cred); 3883 if (!error) 3884 *attrflagp = 1; 3885 } else { 3886 error = nd->nd_repstat; 3887 } 3888 } else { 3889 NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp); 3890 error = nfscl_request(nd, vp, p, cred, stuff); 3891 if (error) 3892 return (error); 3893 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3894 if (nd->nd_repstat && !error) 3895 error = nd->nd_repstat; 3896 if (!error) { 3897 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF); 3898 pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); 3899 pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); 3900 pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); 3901 pc->pc_chownrestricted = 3902 fxdr_unsigned(u_int32_t, *tl++); 3903 pc->pc_caseinsensitive = 3904 fxdr_unsigned(u_int32_t, *tl++); 3905 pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); 3906 } 3907 } 3908 nfsmout: 3909 mbuf_freem(nd->nd_mrep); 3910 return (error); 3911 } 3912 3913 /* 3914 * nfs version 3 fsinfo rpc call 3915 */ 3916 APPLESTATIC int 3917 nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, 3918 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 3919 { 3920 u_int32_t *tl; 3921 struct nfsrv_descript nfsd, *nd = &nfsd; 3922 int error; 3923 3924 *attrflagp = 0; 3925 NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); 3926 error = nfscl_request(nd, vp, p, cred, stuff); 3927 if (error) 3928 return (error); 3929 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3930 if (nd->nd_repstat && !error) 3931 error = nd->nd_repstat; 3932 if (!error) { 3933 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); 3934 fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); 3935 fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); 3936 fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); 3937 fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); 3938 fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); 3939 fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); 3940 fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); 3941 fsp->fs_maxfilesize = fxdr_hyper(tl); 3942 tl += 2; 3943 fxdr_nfsv3time(tl, &fsp->fs_timedelta); 3944 tl += 2; 3945 fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); 3946 } 3947 nfsmout: 3948 mbuf_freem(nd->nd_mrep); 3949 return (error); 3950 } 3951 3952 /* 3953 * This function performs the Renew RPC. 3954 */ 3955 APPLESTATIC int 3956 nfsrpc_renew(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p) 3957 { 3958 u_int32_t *tl; 3959 struct nfsrv_descript nfsd; 3960 struct nfsrv_descript *nd = &nfsd; 3961 struct nfsmount *nmp; 3962 int error; 3963 3964 nmp = clp->nfsc_nmp; 3965 if (nmp == NULL) 3966 return (0); 3967 nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL); 3968 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3969 *tl++ = clp->nfsc_clientid.lval[0]; 3970 *tl = clp->nfsc_clientid.lval[1]; 3971 nd->nd_flag |= ND_USEGSSNAME; 3972 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3973 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3974 if (error) 3975 return (error); 3976 error = nd->nd_repstat; 3977 mbuf_freem(nd->nd_mrep); 3978 return (error); 3979 } 3980 3981 /* 3982 * This function performs the Releaselockowner RPC. 3983 */ 3984 APPLESTATIC int 3985 nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, 3986 struct ucred *cred, NFSPROC_T *p) 3987 { 3988 struct nfsrv_descript nfsd, *nd = &nfsd; 3989 u_int32_t *tl; 3990 int error; 3991 3992 nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL); 3993 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3994 *tl++ = nmp->nm_clp->nfsc_clientid.lval[0]; 3995 *tl = nmp->nm_clp->nfsc_clientid.lval[1]; 3996 (void) nfsm_strtom(nd, lp->nfsl_owner, NFSV4CL_LOCKNAMELEN); 3997 nd->nd_flag |= ND_USEGSSNAME; 3998 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3999 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4000 if (error) 4001 return (error); 4002 error = nd->nd_repstat; 4003 mbuf_freem(nd->nd_mrep); 4004 return (error); 4005 } 4006 4007 /* 4008 * This function performs the Compound to get the mount pt FH. 4009 */ 4010 APPLESTATIC int 4011 nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, 4012 NFSPROC_T *p) 4013 { 4014 u_int32_t *tl; 4015 struct nfsrv_descript nfsd; 4016 struct nfsrv_descript *nd = &nfsd; 4017 u_char *cp, *cp2; 4018 int error, cnt, len, setnil; 4019 u_int32_t *opcntp; 4020 4021 nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp); 4022 cp = dirpath; 4023 cnt = 0; 4024 do { 4025 setnil = 0; 4026 while (*cp == '/') 4027 cp++; 4028 cp2 = cp; 4029 while (*cp2 != '\0' && *cp2 != '/') 4030 cp2++; 4031 if (*cp2 == '/') { 4032 setnil = 1; 4033 *cp2 = '\0'; 4034 } 4035 if (cp2 != cp) { 4036 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4037 *tl = txdr_unsigned(NFSV4OP_LOOKUP); 4038 nfsm_strtom(nd, cp, strlen(cp)); 4039 cnt++; 4040 } 4041 if (setnil) 4042 *cp2++ = '/'; 4043 cp = cp2; 4044 } while (*cp != '\0'); 4045 *opcntp = txdr_unsigned(2 + cnt); 4046 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4047 *tl = txdr_unsigned(NFSV4OP_GETFH); 4048 nd->nd_flag |= ND_USEGSSNAME; 4049 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4050 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4051 if (error) 4052 return (error); 4053 if (nd->nd_repstat == 0) { 4054 NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); 4055 tl += (2 + 2 * cnt); 4056 if ((len = fxdr_unsigned(int, *tl)) <= 0 || 4057 len > NFSX_FHMAX) { 4058 nd->nd_repstat = NFSERR_BADXDR; 4059 } else { 4060 nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); 4061 if (nd->nd_repstat == 0) 4062 nmp->nm_fhsize = len; 4063 } 4064 } 4065 error = nd->nd_repstat; 4066 nfsmout: 4067 mbuf_freem(nd->nd_mrep); 4068 return (error); 4069 } 4070 4071 /* 4072 * This function performs the Delegreturn RPC. 4073 */ 4074 APPLESTATIC int 4075 nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, 4076 struct nfsmount *nmp, NFSPROC_T *p, int syscred) 4077 { 4078 u_int32_t *tl; 4079 struct nfsrv_descript nfsd; 4080 struct nfsrv_descript *nd = &nfsd; 4081 int error; 4082 4083 nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, 4084 dp->nfsdl_fhlen, NULL); 4085 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 4086 *tl++ = dp->nfsdl_stateid.seqid; 4087 *tl++ = dp->nfsdl_stateid.other[0]; 4088 *tl++ = dp->nfsdl_stateid.other[1]; 4089 *tl = dp->nfsdl_stateid.other[2]; 4090 if (syscred) 4091 nd->nd_flag |= ND_USEGSSNAME; 4092 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4093 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4094 if (error) 4095 return (error); 4096 error = nd->nd_repstat; 4097 mbuf_freem(nd->nd_mrep); 4098 return (error); 4099 } 4100 4101 #ifdef NFS4_ACL_EXTATTR_NAME 4102 /* 4103 * nfs getacl call. 4104 */ 4105 APPLESTATIC int 4106 nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4107 struct acl *aclp, void *stuff) 4108 { 4109 struct nfsrv_descript nfsd, *nd = &nfsd; 4110 int error; 4111 nfsattrbit_t attrbits; 4112 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4113 4114 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4115 return (EOPNOTSUPP); 4116 NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); 4117 NFSZERO_ATTRBIT(&attrbits); 4118 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4119 (void) nfsrv_putattrbit(nd, &attrbits); 4120 error = nfscl_request(nd, vp, p, cred, stuff); 4121 if (error) 4122 return (error); 4123 if (!nd->nd_repstat) 4124 error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, 4125 NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); 4126 else 4127 error = nd->nd_repstat; 4128 mbuf_freem(nd->nd_mrep); 4129 return (error); 4130 } 4131 4132 /* 4133 * nfs setacl call. 4134 */ 4135 APPLESTATIC int 4136 nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4137 struct acl *aclp, void *stuff) 4138 { 4139 int error; 4140 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4141 4142 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4143 return (EOPNOTSUPP); 4144 error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); 4145 return (error); 4146 } 4147 4148 /* 4149 * nfs setacl call. 4150 */ 4151 static int 4152 nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4153 struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) 4154 { 4155 struct nfsrv_descript nfsd, *nd = &nfsd; 4156 int error; 4157 nfsattrbit_t attrbits; 4158 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4159 4160 if (!NFSHASNFSV4(nmp)) 4161 return (EOPNOTSUPP); 4162 NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); 4163 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 4164 NFSZERO_ATTRBIT(&attrbits); 4165 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4166 (void) nfsv4_fillattr(nd, vp, aclp, NULL, NULL, 0, &attrbits, 4167 NULL, NULL, 0, 0); 4168 error = nfscl_request(nd, vp, p, cred, stuff); 4169 if (error) 4170 return (error); 4171 /* Don't care about the pre/postop attributes */ 4172 mbuf_freem(nd->nd_mrep); 4173 return (nd->nd_repstat); 4174 } 4175 4176 #endif /* NFS4_ACL_EXTATTR_NAME */ 4177