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 *, int *, 72 struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, 73 void *); 74 static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *, 75 nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *, 76 struct nfsvattr *, struct nfsfh **, int *, int *, void *); 77 static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *, 78 nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *, 79 NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, 80 int *, void *, int *); 81 static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *, 82 struct nfscllockowner *, u_int64_t, u_int64_t, 83 u_int32_t, struct ucred *, NFSPROC_T *, int); 84 static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, 85 struct acl *, nfsv4stateid_t *, void *); 86 87 /* 88 * nfs null call from vfs. 89 */ 90 APPLESTATIC int 91 nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p) 92 { 93 int error; 94 struct nfsrv_descript nfsd, *nd = &nfsd; 95 96 NFSCL_REQSTART(nd, NFSPROC_NULL, vp); 97 error = nfscl_request(nd, vp, p, cred, NULL); 98 if (nd->nd_repstat && !error) 99 error = nd->nd_repstat; 100 mbuf_freem(nd->nd_mrep); 101 return (error); 102 } 103 104 /* 105 * nfs access rpc op. 106 * For nfs version 3 and 4, use the access rpc to check accessibility. If file 107 * modes are changed on the server, accesses might still fail later. 108 */ 109 APPLESTATIC int 110 nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred, 111 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp) 112 { 113 int error; 114 u_int32_t mode, rmode; 115 116 if (acmode & VREAD) 117 mode = NFSACCESS_READ; 118 else 119 mode = 0; 120 if (vnode_vtype(vp) == VDIR) { 121 if (acmode & VWRITE) 122 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND | 123 NFSACCESS_DELETE); 124 if (acmode & VEXEC) 125 mode |= NFSACCESS_LOOKUP; 126 } else { 127 if (acmode & VWRITE) 128 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND); 129 if (acmode & VEXEC) 130 mode |= NFSACCESS_EXECUTE; 131 } 132 133 /* 134 * Now, just call nfsrpc_accessrpc() to do the actual RPC. 135 */ 136 error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode, 137 NULL); 138 139 /* 140 * The NFS V3 spec does not clarify whether or not 141 * the returned access bits can be a superset of 142 * the ones requested, so... 143 */ 144 if (!error && (rmode & mode) != mode) 145 error = EACCES; 146 return (error); 147 } 148 149 /* 150 * The actual rpc, separated out for Darwin. 151 */ 152 APPLESTATIC int 153 nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred, 154 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep, 155 void *stuff) 156 { 157 u_int32_t *tl; 158 u_int32_t supported, rmode; 159 int error; 160 struct nfsrv_descript nfsd, *nd = &nfsd; 161 nfsattrbit_t attrbits; 162 163 *attrflagp = 0; 164 supported = mode; 165 NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp); 166 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 167 *tl = txdr_unsigned(mode); 168 if (nd->nd_flag & ND_NFSV4) { 169 /* 170 * And do a Getattr op. 171 */ 172 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 173 *tl = txdr_unsigned(NFSV4OP_GETATTR); 174 NFSGETATTR_ATTRBIT(&attrbits); 175 (void) nfsrv_putattrbit(nd, &attrbits); 176 } 177 error = nfscl_request(nd, vp, p, cred, stuff); 178 if (error) 179 return (error); 180 if (nd->nd_flag & ND_NFSV3) { 181 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 182 if (error) 183 goto nfsmout; 184 } 185 if (!nd->nd_repstat) { 186 if (nd->nd_flag & ND_NFSV4) { 187 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 188 supported = fxdr_unsigned(u_int32_t, *tl++); 189 } else { 190 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 191 } 192 rmode = fxdr_unsigned(u_int32_t, *tl); 193 if (nd->nd_flag & ND_NFSV4) 194 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 195 196 /* 197 * It's not obvious what should be done about 198 * unsupported access modes. For now, be paranoid 199 * and clear the unsupported ones. 200 */ 201 rmode &= supported; 202 *rmodep = rmode; 203 } else 204 error = nd->nd_repstat; 205 nfsmout: 206 mbuf_freem(nd->nd_mrep); 207 return (error); 208 } 209 210 /* 211 * nfs open rpc 212 */ 213 APPLESTATIC int 214 nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p) 215 { 216 struct nfsclopen *op; 217 struct nfscldeleg *dp; 218 struct nfsfh *nfhp; 219 struct nfsnode *np = VTONFS(vp); 220 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 221 u_int32_t mode, clidrev; 222 int ret, newone, error, expireret = 0, retrycnt; 223 224 /* 225 * For NFSv4, Open Ops are only done on Regular Files. 226 */ 227 if (vnode_vtype(vp) != VREG) 228 return (0); 229 mode = 0; 230 if (amode & FREAD) 231 mode |= NFSV4OPEN_ACCESSREAD; 232 if (amode & FWRITE) 233 mode |= NFSV4OPEN_ACCESSWRITE; 234 nfhp = np->n_fhp; 235 236 retrycnt = 0; 237 #ifdef notdef 238 { char name[100]; int namel; 239 namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; 240 bcopy(NFS4NODENAME(np->n_v4), name, namel); 241 name[namel] = '\0'; 242 printf("rpcopen p=0x%x name=%s",p->p_pid,name); 243 if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); 244 else printf(" fhl=0\n"); 245 } 246 #endif 247 do { 248 dp = NULL; 249 error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1, 250 cred, p, NULL, &op, &newone, &ret, 1); 251 if (error) { 252 return (error); 253 } 254 if (nmp->nm_clp != NULL) 255 clidrev = nmp->nm_clp->nfsc_clientidrev; 256 else 257 clidrev = 0; 258 if (ret == NFSCLOPEN_DOOPEN) { 259 if (np->n_v4 != NULL) { 260 error = nfsrpc_openrpc(nmp, vp, np->n_v4->n4_data, 261 np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, 262 np->n_fhp->nfh_len, mode, op, 263 NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, &dp, 264 0, 0x0, cred, p, 0, 0); 265 if (dp != NULL) { 266 #ifdef APPLE 267 OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag); 268 #else 269 NFSLOCKNODE(np); 270 np->n_flag &= ~NDELEGMOD; 271 /* 272 * Invalidate the attribute cache, so that 273 * attributes that pre-date the issue of a 274 * delegation are not cached, since the 275 * cached attributes will remain valid while 276 * the delegation is held. 277 */ 278 NFSINVALATTRCACHE(np); 279 NFSUNLOCKNODE(np); 280 #endif 281 (void) nfscl_deleg(nmp->nm_mountp, 282 op->nfso_own->nfsow_clp, 283 nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); 284 } 285 } else { 286 error = EIO; 287 } 288 newnfs_copyincred(cred, &op->nfso_cred); 289 } else if (ret == NFSCLOPEN_SETCRED) 290 /* 291 * This is a new local open on a delegation. It needs 292 * to have credentials so that an open can be done 293 * against the server during recovery. 294 */ 295 newnfs_copyincred(cred, &op->nfso_cred); 296 297 /* 298 * nfso_opencnt is the count of how many VOP_OPEN()s have 299 * been done on this Open successfully and a VOP_CLOSE() 300 * is expected for each of these. 301 * If error is non-zero, don't increment it, since the Open 302 * hasn't succeeded yet. 303 */ 304 if (!error) 305 op->nfso_opencnt++; 306 nfscl_openrelease(op, error, newone); 307 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 308 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 309 (void) nfs_catnap(PZERO, error, "nfs_open"); 310 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 311 && clidrev != 0) { 312 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 313 retrycnt++; 314 } 315 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 316 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 317 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 318 expireret == 0 && clidrev != 0 && retrycnt < 4)); 319 if (error && retrycnt >= 4) 320 error = EIO; 321 return (error); 322 } 323 324 /* 325 * the actual open rpc 326 */ 327 APPLESTATIC int 328 nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, 329 u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, 330 u_int8_t *name, int namelen, struct nfscldeleg **dpp, 331 int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, 332 int syscred, int recursed) 333 { 334 u_int32_t *tl; 335 struct nfsrv_descript nfsd, *nd = &nfsd; 336 struct nfscldeleg *dp, *ndp = NULL; 337 struct nfsvattr nfsva; 338 u_int32_t rflags, deleg; 339 nfsattrbit_t attrbits; 340 int error, ret, acesize, limitby; 341 342 dp = *dpp; 343 *dpp = NULL; 344 nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL); 345 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 346 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 347 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 348 *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 349 *tl++ = op->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 350 *tl = op->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 351 (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); 352 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 353 *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); 354 if (reclaim) { 355 *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); 356 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 357 *tl = txdr_unsigned(delegtype); 358 } else { 359 if (dp != NULL) { 360 *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); 361 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 362 *tl++ = dp->nfsdl_stateid.seqid; 363 *tl++ = dp->nfsdl_stateid.other[0]; 364 *tl++ = dp->nfsdl_stateid.other[1]; 365 *tl = dp->nfsdl_stateid.other[2]; 366 } else { 367 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 368 } 369 (void) nfsm_strtom(nd, name, namelen); 370 } 371 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 372 *tl = txdr_unsigned(NFSV4OP_GETATTR); 373 NFSZERO_ATTRBIT(&attrbits); 374 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 375 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); 376 (void) nfsrv_putattrbit(nd, &attrbits); 377 if (syscred) 378 nd->nd_flag |= ND_USEGSSNAME; 379 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 380 NFS_PROG, NFS_VER4, NULL, 1, NULL); 381 if (error) 382 return (error); 383 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 384 if (!nd->nd_repstat) { 385 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 386 6 * NFSX_UNSIGNED); 387 op->nfso_stateid.seqid = *tl++; 388 op->nfso_stateid.other[0] = *tl++; 389 op->nfso_stateid.other[1] = *tl++; 390 op->nfso_stateid.other[2] = *tl; 391 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 392 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 393 if (error) 394 goto nfsmout; 395 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 396 deleg = fxdr_unsigned(u_int32_t, *tl); 397 if (deleg == NFSV4OPEN_DELEGATEREAD || 398 deleg == NFSV4OPEN_DELEGATEWRITE) { 399 if (!(op->nfso_own->nfsow_clp->nfsc_flags & 400 NFSCLFLAGS_FIRSTDELEG)) 401 op->nfso_own->nfsow_clp->nfsc_flags |= 402 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 403 MALLOC(ndp, struct nfscldeleg *, 404 sizeof (struct nfscldeleg) + newfhlen, 405 M_NFSCLDELEG, M_WAITOK); 406 LIST_INIT(&ndp->nfsdl_owner); 407 LIST_INIT(&ndp->nfsdl_lock); 408 ndp->nfsdl_clp = op->nfso_own->nfsow_clp; 409 ndp->nfsdl_fhlen = newfhlen; 410 NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); 411 newnfs_copyincred(cred, &ndp->nfsdl_cred); 412 nfscl_lockinit(&ndp->nfsdl_rwlock); 413 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 414 NFSX_UNSIGNED); 415 ndp->nfsdl_stateid.seqid = *tl++; 416 ndp->nfsdl_stateid.other[0] = *tl++; 417 ndp->nfsdl_stateid.other[1] = *tl++; 418 ndp->nfsdl_stateid.other[2] = *tl++; 419 ret = fxdr_unsigned(int, *tl); 420 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 421 ndp->nfsdl_flags = NFSCLDL_WRITE; 422 /* 423 * Indicates how much the file can grow. 424 */ 425 NFSM_DISSECT(tl, u_int32_t *, 426 3 * NFSX_UNSIGNED); 427 limitby = fxdr_unsigned(int, *tl++); 428 switch (limitby) { 429 case NFSV4OPEN_LIMITSIZE: 430 ndp->nfsdl_sizelimit = fxdr_hyper(tl); 431 break; 432 case NFSV4OPEN_LIMITBLOCKS: 433 ndp->nfsdl_sizelimit = 434 fxdr_unsigned(u_int64_t, *tl++); 435 ndp->nfsdl_sizelimit *= 436 fxdr_unsigned(u_int64_t, *tl); 437 break; 438 default: 439 error = NFSERR_BADXDR; 440 goto nfsmout; 441 }; 442 } else { 443 ndp->nfsdl_flags = NFSCLDL_READ; 444 } 445 if (ret) 446 ndp->nfsdl_flags |= NFSCLDL_RECALL; 447 error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, 448 &acesize, p); 449 if (error) 450 goto nfsmout; 451 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 452 error = NFSERR_BADXDR; 453 goto nfsmout; 454 } 455 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 456 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 457 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 458 NULL, NULL, NULL, p, cred); 459 if (error) 460 goto nfsmout; 461 if (ndp != NULL) { 462 ndp->nfsdl_change = nfsva.na_filerev; 463 ndp->nfsdl_modtime = nfsva.na_mtime; 464 ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; 465 } 466 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { 467 do { 468 ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, 469 cred, p); 470 if (ret == NFSERR_DELAY) 471 (void) nfs_catnap(PZERO, ret, "nfs_open"); 472 } while (ret == NFSERR_DELAY); 473 error = ret; 474 } 475 if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || 476 nfscl_assumeposixlocks) 477 op->nfso_posixlock = 1; 478 else 479 op->nfso_posixlock = 0; 480 481 /* 482 * If the server is handing out delegations, but we didn't 483 * get one because an OpenConfirm was required, try the 484 * Open again, to get a delegation. This is a harmless no-op, 485 * from a server's point of view. 486 */ 487 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && 488 (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) 489 && !error && dp == NULL && ndp == NULL && !recursed) { 490 do { 491 ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, 492 newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, 493 cred, p, syscred, 1); 494 if (ret == NFSERR_DELAY) 495 (void) nfs_catnap(PZERO, ret, "nfs_open2"); 496 } while (ret == NFSERR_DELAY); 497 if (ret) { 498 if (ndp != NULL) 499 FREE((caddr_t)ndp, M_NFSCLDELEG); 500 if (ret == NFSERR_STALECLIENTID || 501 ret == NFSERR_STALEDONTRECOVER) 502 error = ret; 503 } 504 } 505 } 506 if (nd->nd_repstat != 0 && error == 0) 507 error = nd->nd_repstat; 508 if (error == NFSERR_STALECLIENTID) 509 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 510 nfsmout: 511 if (!error) 512 *dpp = ndp; 513 else if (ndp != NULL) 514 FREE((caddr_t)ndp, M_NFSCLDELEG); 515 mbuf_freem(nd->nd_mrep); 516 return (error); 517 } 518 519 /* 520 * open downgrade rpc 521 */ 522 APPLESTATIC int 523 nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, 524 struct ucred *cred, NFSPROC_T *p) 525 { 526 u_int32_t *tl; 527 struct nfsrv_descript nfsd, *nd = &nfsd; 528 int error; 529 530 NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); 531 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 532 *tl++ = op->nfso_stateid.seqid; 533 *tl++ = op->nfso_stateid.other[0]; 534 *tl++ = op->nfso_stateid.other[1]; 535 *tl++ = op->nfso_stateid.other[2]; 536 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 537 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 538 *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 539 error = nfscl_request(nd, vp, p, cred, NULL); 540 if (error) 541 return (error); 542 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 543 if (!nd->nd_repstat) { 544 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 545 op->nfso_stateid.seqid = *tl++; 546 op->nfso_stateid.other[0] = *tl++; 547 op->nfso_stateid.other[1] = *tl++; 548 op->nfso_stateid.other[2] = *tl; 549 } 550 if (nd->nd_repstat && error == 0) 551 error = nd->nd_repstat; 552 if (error == NFSERR_STALESTATEID) 553 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 554 nfsmout: 555 mbuf_freem(nd->nd_mrep); 556 return (error); 557 } 558 559 /* 560 * V4 Close operation. 561 */ 562 APPLESTATIC int 563 nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) 564 { 565 struct nfsclclient *clp; 566 int error; 567 568 if (vnode_vtype(vp) != VREG) 569 return (0); 570 if (doclose) 571 error = nfscl_doclose(vp, &clp, p); 572 else 573 error = nfscl_getclose(vp, &clp); 574 if (error) 575 return (error); 576 577 nfscl_clientrelease(clp); 578 return (0); 579 } 580 581 /* 582 * Close the open. 583 */ 584 APPLESTATIC void 585 nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p) 586 { 587 struct nfsrv_descript nfsd, *nd = &nfsd; 588 struct nfscllockowner *lp, *nlp; 589 struct nfscllock *lop, *nlop; 590 struct ucred *tcred; 591 u_int64_t off = 0, len = 0; 592 u_int32_t type = NFSV4LOCKT_READ; 593 int error, do_unlock, trycnt; 594 595 tcred = newnfs_getcred(); 596 newnfs_copycred(&op->nfso_cred, tcred); 597 /* 598 * (Theoretically this could be done in the same 599 * compound as the close, but having multiple 600 * sequenced Ops in the same compound might be 601 * too scary for some servers.) 602 */ 603 if (op->nfso_posixlock) { 604 off = 0; 605 len = NFS64BITSSET; 606 type = NFSV4LOCKT_READ; 607 } 608 609 /* 610 * Since this function is only called from VOP_INACTIVE(), no 611 * other thread will be manipulating this Open. As such, the 612 * lock lists are not being changed by other threads, so it should 613 * be safe to do this without locking. 614 */ 615 LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { 616 do_unlock = 1; 617 LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) { 618 if (op->nfso_posixlock == 0) { 619 off = lop->nfslo_first; 620 len = lop->nfslo_end - lop->nfslo_first; 621 if (lop->nfslo_type == F_WRLCK) 622 type = NFSV4LOCKT_WRITE; 623 else 624 type = NFSV4LOCKT_READ; 625 } 626 if (do_unlock) { 627 trycnt = 0; 628 do { 629 error = nfsrpc_locku(nd, nmp, lp, off, 630 len, type, tcred, p, 0); 631 if ((nd->nd_repstat == NFSERR_GRACE || 632 nd->nd_repstat == NFSERR_DELAY) && 633 error == 0) 634 (void) nfs_catnap(PZERO, 635 (int)nd->nd_repstat, 636 "nfs_close"); 637 } while ((nd->nd_repstat == NFSERR_GRACE || 638 nd->nd_repstat == NFSERR_DELAY) && 639 error == 0 && trycnt++ < 5); 640 if (op->nfso_posixlock) 641 do_unlock = 0; 642 } 643 nfscl_freelock(lop, 0); 644 } 645 /* 646 * Do a ReleaseLockOwner. 647 * The lock owner name nfsl_owner may be used by other opens for 648 * other files but the lock_owner4 name that nfsrpc_rellockown() 649 * puts on the wire has the file handle for this file appended 650 * to it, so it can be done now. 651 */ 652 (void)nfsrpc_rellockown(nmp, lp, tcred, p); 653 } 654 655 /* 656 * There could be other Opens for different files on the same 657 * OpenOwner, so locking is required. 658 */ 659 NFSLOCKCLSTATE(); 660 nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); 661 NFSUNLOCKCLSTATE(); 662 do { 663 error = nfscl_tryclose(op, tcred, nmp, p); 664 if (error == NFSERR_GRACE) 665 (void) nfs_catnap(PZERO, error, "nfs_close"); 666 } while (error == NFSERR_GRACE); 667 NFSLOCKCLSTATE(); 668 nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); 669 670 LIST_FOREACH_SAFE(lp, &op->nfso_lock, nfsl_list, nlp) 671 nfscl_freelockowner(lp, 0); 672 nfscl_freeopen(op, 0); 673 NFSUNLOCKCLSTATE(); 674 NFSFREECRED(tcred); 675 } 676 677 /* 678 * The actual Close RPC. 679 */ 680 APPLESTATIC int 681 nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, 682 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, 683 int syscred) 684 { 685 u_int32_t *tl; 686 int error; 687 688 nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, 689 op->nfso_fhlen, NULL); 690 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 691 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 692 *tl++ = op->nfso_stateid.seqid; 693 *tl++ = op->nfso_stateid.other[0]; 694 *tl++ = op->nfso_stateid.other[1]; 695 *tl = op->nfso_stateid.other[2]; 696 if (syscred) 697 nd->nd_flag |= ND_USEGSSNAME; 698 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 699 NFS_PROG, NFS_VER4, NULL, 1, NULL); 700 if (error) 701 return (error); 702 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 703 if (nd->nd_repstat == 0) 704 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 705 error = nd->nd_repstat; 706 if (error == NFSERR_STALESTATEID) 707 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 708 nfsmout: 709 mbuf_freem(nd->nd_mrep); 710 return (error); 711 } 712 713 /* 714 * V4 Open Confirm RPC. 715 */ 716 APPLESTATIC int 717 nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, 718 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) 719 { 720 u_int32_t *tl; 721 struct nfsrv_descript nfsd, *nd = &nfsd; 722 int error; 723 724 nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, VFSTONFS(vnode_mount(vp)), 725 nfhp, fhlen, NULL); 726 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 727 *tl++ = op->nfso_stateid.seqid; 728 *tl++ = op->nfso_stateid.other[0]; 729 *tl++ = op->nfso_stateid.other[1]; 730 *tl++ = op->nfso_stateid.other[2]; 731 *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); 732 error = nfscl_request(nd, vp, p, cred, NULL); 733 if (error) 734 return (error); 735 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 736 if (!nd->nd_repstat) { 737 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 738 op->nfso_stateid.seqid = *tl++; 739 op->nfso_stateid.other[0] = *tl++; 740 op->nfso_stateid.other[1] = *tl++; 741 op->nfso_stateid.other[2] = *tl; 742 } 743 error = nd->nd_repstat; 744 if (error == NFSERR_STALESTATEID) 745 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 746 nfsmout: 747 mbuf_freem(nd->nd_mrep); 748 return (error); 749 } 750 751 /* 752 * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() 753 * when a mount has just occurred and when the server replies NFSERR_EXPIRED. 754 */ 755 APPLESTATIC int 756 nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, 757 struct ucred *cred, NFSPROC_T *p) 758 { 759 u_int32_t *tl; 760 struct nfsrv_descript nfsd; 761 struct nfsrv_descript *nd = &nfsd; 762 nfsattrbit_t attrbits; 763 u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; 764 u_short port; 765 int error, isinet6 = 0, callblen; 766 nfsquad_t confirm; 767 u_int32_t lease; 768 static u_int32_t rev = 0; 769 770 if (nfsboottime.tv_sec == 0) 771 NFSSETBOOTTIME(nfsboottime); 772 nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL); 773 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 774 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 775 *tl = txdr_unsigned(rev++); 776 (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); 777 778 /* 779 * set up the callback address 780 */ 781 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 782 *tl = txdr_unsigned(NFS_CALLBCKPROG); 783 callblen = strlen(nfsv4_callbackaddr); 784 if (callblen == 0) 785 cp = nfscl_getmyip(nmp, &isinet6); 786 if (nfscl_enablecallb && nfs_numnfscbd > 0 && 787 (callblen > 0 || cp != NULL)) { 788 port = htons(nfsv4_cbport); 789 cp2 = (u_int8_t *)&port; 790 #ifdef INET6 791 if ((callblen > 0 && 792 strchr(nfsv4_callbackaddr, ':')) || isinet6) { 793 char ip6buf[INET6_ADDRSTRLEN], *ip6add; 794 795 (void) nfsm_strtom(nd, "tcp6", 4); 796 if (callblen == 0) { 797 ip6_sprintf(ip6buf, (struct in6_addr *)cp); 798 ip6add = ip6buf; 799 } else { 800 ip6add = nfsv4_callbackaddr; 801 } 802 snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", 803 ip6add, cp2[0], cp2[1]); 804 } else 805 #endif 806 { 807 (void) nfsm_strtom(nd, "tcp", 3); 808 if (callblen == 0) 809 snprintf(addr, INET6_ADDRSTRLEN + 9, 810 "%d.%d.%d.%d.%d.%d", cp[0], cp[1], 811 cp[2], cp[3], cp2[0], cp2[1]); 812 else 813 snprintf(addr, INET6_ADDRSTRLEN + 9, 814 "%s.%d.%d", nfsv4_callbackaddr, 815 cp2[0], cp2[1]); 816 } 817 (void) nfsm_strtom(nd, addr, strlen(addr)); 818 } else { 819 (void) nfsm_strtom(nd, "tcp", 3); 820 (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); 821 } 822 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 823 *tl = txdr_unsigned(clp->nfsc_cbident); 824 nd->nd_flag |= ND_USEGSSNAME; 825 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 826 NFS_PROG, NFS_VER4, NULL, 1, NULL); 827 if (error) 828 return (error); 829 if (nd->nd_repstat == 0) { 830 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 831 clp->nfsc_clientid.lval[0] = *tl++; 832 clp->nfsc_clientid.lval[1] = *tl++; 833 confirm.lval[0] = *tl++; 834 confirm.lval[1] = *tl; 835 mbuf_freem(nd->nd_mrep); 836 nd->nd_mrep = NULL; 837 838 /* 839 * and confirm it. 840 */ 841 nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL); 842 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 843 *tl++ = clp->nfsc_clientid.lval[0]; 844 *tl++ = clp->nfsc_clientid.lval[1]; 845 *tl++ = confirm.lval[0]; 846 *tl = confirm.lval[1]; 847 nd->nd_flag |= ND_USEGSSNAME; 848 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 849 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 850 if (error) 851 return (error); 852 mbuf_freem(nd->nd_mrep); 853 nd->nd_mrep = NULL; 854 if (nd->nd_repstat == 0) { 855 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, 856 nmp->nm_fhsize, NULL); 857 NFSZERO_ATTRBIT(&attrbits); 858 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); 859 (void) nfsrv_putattrbit(nd, &attrbits); 860 nd->nd_flag |= ND_USEGSSNAME; 861 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 862 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 863 if (error) 864 return (error); 865 if (nd->nd_repstat == 0) { 866 error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, 867 NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); 868 if (error) 869 goto nfsmout; 870 clp->nfsc_renew = NFSCL_RENEW(lease); 871 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; 872 clp->nfsc_clientidrev++; 873 if (clp->nfsc_clientidrev == 0) 874 clp->nfsc_clientidrev++; 875 } 876 } 877 } 878 error = nd->nd_repstat; 879 nfsmout: 880 mbuf_freem(nd->nd_mrep); 881 return (error); 882 } 883 884 /* 885 * nfs getattr call. 886 */ 887 APPLESTATIC int 888 nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 889 struct nfsvattr *nap, void *stuff) 890 { 891 struct nfsrv_descript nfsd, *nd = &nfsd; 892 int error; 893 nfsattrbit_t attrbits; 894 895 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 896 if (nd->nd_flag & ND_NFSV4) { 897 NFSGETATTR_ATTRBIT(&attrbits); 898 (void) nfsrv_putattrbit(nd, &attrbits); 899 } 900 error = nfscl_request(nd, vp, p, cred, stuff); 901 if (error) 902 return (error); 903 if (!nd->nd_repstat) 904 error = nfsm_loadattr(nd, nap); 905 else 906 error = nd->nd_repstat; 907 mbuf_freem(nd->nd_mrep); 908 return (error); 909 } 910 911 /* 912 * nfs getattr call with non-vnode arguemnts. 913 */ 914 APPLESTATIC int 915 nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, 916 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp) 917 { 918 struct nfsrv_descript nfsd, *nd = &nfsd; 919 int error, vers = NFS_VER2; 920 nfsattrbit_t attrbits; 921 922 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL); 923 if (nd->nd_flag & ND_NFSV4) { 924 vers = NFS_VER4; 925 NFSGETATTR_ATTRBIT(&attrbits); 926 (void) nfsrv_putattrbit(nd, &attrbits); 927 } else if (nd->nd_flag & ND_NFSV3) { 928 vers = NFS_VER3; 929 } 930 if (syscred) 931 nd->nd_flag |= ND_USEGSSNAME; 932 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 933 NFS_PROG, vers, NULL, 1, xidp); 934 if (error) 935 return (error); 936 if (!nd->nd_repstat) 937 error = nfsm_loadattr(nd, nap); 938 else 939 error = nd->nd_repstat; 940 mbuf_freem(nd->nd_mrep); 941 return (error); 942 } 943 944 /* 945 * Do an nfs setattr operation. 946 */ 947 APPLESTATIC int 948 nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, 949 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, 950 void *stuff) 951 { 952 int error, expireret = 0, openerr, retrycnt; 953 u_int32_t clidrev = 0, mode; 954 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 955 struct nfsfh *nfhp; 956 nfsv4stateid_t stateid; 957 void *lckp; 958 959 if (nmp->nm_clp != NULL) 960 clidrev = nmp->nm_clp->nfsc_clientidrev; 961 if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) 962 mode = NFSV4OPEN_ACCESSWRITE; 963 else 964 mode = NFSV4OPEN_ACCESSREAD; 965 retrycnt = 0; 966 do { 967 lckp = NULL; 968 openerr = 1; 969 if (NFSHASNFSV4(nmp)) { 970 nfhp = VTONFS(vp)->n_fhp; 971 error = nfscl_getstateid(vp, nfhp->nfh_fh, 972 nfhp->nfh_len, mode, cred, p, &stateid, &lckp); 973 if (error && vnode_vtype(vp) == VREG && 974 (mode == NFSV4OPEN_ACCESSWRITE || 975 nfstest_openallsetattr)) { 976 /* 977 * No Open stateid, so try and open the file 978 * now. 979 */ 980 if (mode == NFSV4OPEN_ACCESSWRITE) 981 openerr = nfsrpc_open(vp, FWRITE, cred, 982 p); 983 else 984 openerr = nfsrpc_open(vp, FREAD, cred, 985 p); 986 if (!openerr) 987 (void) nfscl_getstateid(vp, 988 nfhp->nfh_fh, nfhp->nfh_len, 989 mode, cred, p, &stateid, &lckp); 990 } 991 } 992 if (vap != NULL) 993 error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, 994 rnap, attrflagp, stuff); 995 else 996 error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, 997 stuff); 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, error, "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, error, "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 int rsize; 1284 off_t tmp_off; 1285 1286 *attrflagp = 0; 1287 tsiz = uio_uio_resid(uiop); 1288 tmp_off = uiop->uio_offset + tsiz; 1289 NFSLOCKMNT(nmp); 1290 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1291 NFSUNLOCKMNT(nmp); 1292 return (EFBIG); 1293 } 1294 rsize = nmp->nm_rsize; 1295 NFSUNLOCKMNT(nmp); 1296 nd->nd_mrep = NULL; 1297 while (tsiz > 0) { 1298 *attrflagp = 0; 1299 len = (tsiz > rsize) ? rsize : tsiz; 1300 NFSCL_REQSTART(nd, NFSPROC_READ, vp); 1301 if (nd->nd_flag & ND_NFSV4) 1302 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1303 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1304 if (nd->nd_flag & ND_NFSV2) { 1305 *tl++ = txdr_unsigned(uiop->uio_offset); 1306 *tl++ = txdr_unsigned(len); 1307 *tl = 0; 1308 } else { 1309 txdr_hyper(uiop->uio_offset, tl); 1310 *(tl + 2) = txdr_unsigned(len); 1311 } 1312 /* 1313 * Since I can't do a Getattr for NFSv4 for Write, there 1314 * doesn't seem any point in doing one here, either. 1315 * (See the comment in nfsrpc_writerpc() for more info.) 1316 */ 1317 error = nfscl_request(nd, vp, p, cred, stuff); 1318 if (error) 1319 return (error); 1320 if (nd->nd_flag & ND_NFSV3) { 1321 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1322 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 1323 error = nfsm_loadattr(nd, nap); 1324 if (!error) 1325 *attrflagp = 1; 1326 } 1327 if (nd->nd_repstat || error) { 1328 if (!error) 1329 error = nd->nd_repstat; 1330 goto nfsmout; 1331 } 1332 if (nd->nd_flag & ND_NFSV3) { 1333 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1334 eof = fxdr_unsigned(int, *(tl + 1)); 1335 } else if (nd->nd_flag & ND_NFSV4) { 1336 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1337 eof = fxdr_unsigned(int, *tl); 1338 } 1339 NFSM_STRSIZ(retlen, rsize); 1340 error = nfsm_mbufuio(nd, uiop, retlen); 1341 if (error) 1342 goto nfsmout; 1343 mbuf_freem(nd->nd_mrep); 1344 nd->nd_mrep = NULL; 1345 tsiz -= retlen; 1346 if (!(nd->nd_flag & ND_NFSV2)) { 1347 if (eof || retlen == 0) 1348 tsiz = 0; 1349 } else if (retlen < len) 1350 tsiz = 0; 1351 } 1352 return (0); 1353 nfsmout: 1354 if (nd->nd_mrep != NULL) 1355 mbuf_freem(nd->nd_mrep); 1356 return (error); 1357 } 1358 1359 /* 1360 * nfs write operation 1361 * When called_from_strategy != 0, it should return EIO for an error that 1362 * indicates recovery is in progress, so that the buffer will be left 1363 * dirty and be written back to the server later. If it loops around, 1364 * the recovery thread could get stuck waiting for the buffer and recovery 1365 * will then deadlock. 1366 */ 1367 APPLESTATIC int 1368 nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, 1369 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 1370 void *stuff, int called_from_strategy) 1371 { 1372 int error, expireret = 0, retrycnt, nostateid; 1373 u_int32_t clidrev = 0; 1374 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1375 struct nfsnode *np = VTONFS(vp); 1376 struct ucred *newcred; 1377 struct nfsfh *nfhp = NULL; 1378 nfsv4stateid_t stateid; 1379 void *lckp; 1380 1381 *must_commit = 0; 1382 if (nmp->nm_clp != NULL) 1383 clidrev = nmp->nm_clp->nfsc_clientidrev; 1384 newcred = cred; 1385 if (NFSHASNFSV4(nmp)) { 1386 if (p == NULL) 1387 newcred = NFSNEWCRED(cred); 1388 nfhp = np->n_fhp; 1389 } 1390 retrycnt = 0; 1391 do { 1392 lckp = NULL; 1393 nostateid = 0; 1394 if (NFSHASNFSV4(nmp)) { 1395 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1396 NFSV4OPEN_ACCESSWRITE, newcred, p, &stateid, &lckp); 1397 if (stateid.other[0] == 0 && stateid.other[1] == 0 && 1398 stateid.other[2] == 0) { 1399 nostateid = 1; 1400 printf("stateid0 in write\n"); 1401 } 1402 } 1403 1404 /* 1405 * If there is no stateid for NFSv4, it means this is an 1406 * extraneous write after close. Basically a poorly 1407 * implemented buffer cache. Just don't do the write. 1408 */ 1409 if (nostateid) 1410 error = 0; 1411 else 1412 error = nfsrpc_writerpc(vp, uiop, iomode, must_commit, 1413 newcred, &stateid, p, nap, attrflagp, stuff); 1414 if (error == NFSERR_STALESTATEID) 1415 nfscl_initiate_recovery(nmp->nm_clp); 1416 if (lckp != NULL) 1417 nfscl_lockderef(lckp); 1418 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1419 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1420 error == NFSERR_OLDSTATEID) { 1421 (void) nfs_catnap(PZERO, error, "nfs_write"); 1422 } else if ((error == NFSERR_EXPIRED || 1423 error == NFSERR_BADSTATEID) && clidrev != 0) { 1424 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1425 } 1426 retrycnt++; 1427 } while (error == NFSERR_GRACE || error == NFSERR_DELAY || 1428 ((error == NFSERR_STALESTATEID || 1429 error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) || 1430 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1431 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1432 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1433 if (error != 0 && (retrycnt >= 4 || 1434 ((error == NFSERR_STALESTATEID || 1435 error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0))) 1436 error = EIO; 1437 if (NFSHASNFSV4(nmp) && p == NULL) 1438 NFSFREECRED(newcred); 1439 return (error); 1440 } 1441 1442 /* 1443 * The actual write RPC. 1444 */ 1445 static int 1446 nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, 1447 int *must_commit, struct ucred *cred, nfsv4stateid_t *stateidp, 1448 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1449 { 1450 u_int32_t *tl; 1451 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1452 struct nfsnode *np = VTONFS(vp); 1453 int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; 1454 int wccflag = 0, wsize; 1455 int32_t backup; 1456 struct nfsrv_descript nfsd; 1457 struct nfsrv_descript *nd = &nfsd; 1458 nfsattrbit_t attrbits; 1459 off_t tmp_off; 1460 1461 KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1")); 1462 *attrflagp = 0; 1463 tsiz = uio_uio_resid(uiop); 1464 tmp_off = uiop->uio_offset + tsiz; 1465 NFSLOCKMNT(nmp); 1466 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1467 NFSUNLOCKMNT(nmp); 1468 return (EFBIG); 1469 } 1470 wsize = nmp->nm_wsize; 1471 NFSUNLOCKMNT(nmp); 1472 nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ 1473 nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ 1474 while (tsiz > 0) { 1475 *attrflagp = 0; 1476 len = (tsiz > wsize) ? wsize : tsiz; 1477 NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); 1478 if (nd->nd_flag & ND_NFSV4) { 1479 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1480 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); 1481 txdr_hyper(uiop->uio_offset, tl); 1482 tl += 2; 1483 *tl++ = txdr_unsigned(*iomode); 1484 *tl = txdr_unsigned(len); 1485 } else if (nd->nd_flag & ND_NFSV3) { 1486 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); 1487 txdr_hyper(uiop->uio_offset, tl); 1488 tl += 2; 1489 *tl++ = txdr_unsigned(len); 1490 *tl++ = txdr_unsigned(*iomode); 1491 *tl = txdr_unsigned(len); 1492 } else { 1493 u_int32_t x; 1494 1495 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1496 /* 1497 * Not sure why someone changed this, since the 1498 * RFC clearly states that "beginoffset" and 1499 * "totalcount" are ignored, but it wouldn't 1500 * surprise me if there's a busted server out there. 1501 */ 1502 /* Set both "begin" and "current" to non-garbage. */ 1503 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1504 *tl++ = x; /* "begin offset" */ 1505 *tl++ = x; /* "current offset" */ 1506 x = txdr_unsigned(len); 1507 *tl++ = x; /* total to this offset */ 1508 *tl = x; /* size of this write */ 1509 1510 } 1511 nfsm_uiombuf(nd, uiop, len); 1512 /* 1513 * Although it is tempting to do a normal Getattr Op in the 1514 * NFSv4 compound, the result can be a nearly hung client 1515 * system if the Getattr asks for Owner and/or OwnerGroup. 1516 * It occurs when the client can't map either the Owner or 1517 * Owner_group name in the Getattr reply to a uid/gid. When 1518 * there is a cache miss, the kernel does an upcall to the 1519 * nfsuserd. Then, it can try and read the local /etc/passwd 1520 * or /etc/group file. It can then block in getnewbuf(), 1521 * waiting for dirty writes to be pushed to the NFS server. 1522 * The only reason this doesn't result in a complete 1523 * deadlock, is that the upcall times out and allows 1524 * the write to complete. However, progress is so slow 1525 * that it might just as well be deadlocked. 1526 * As such, we get the rest of the attributes, but not 1527 * Owner or Owner_group. 1528 * nb: nfscl_loadattrcache() needs to be told that these 1529 * partial attributes from a write rpc are being 1530 * passed in, via a argument flag. 1531 */ 1532 if (nd->nd_flag & ND_NFSV4) { 1533 NFSWRITEGETATTR_ATTRBIT(&attrbits); 1534 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1535 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1536 (void) nfsrv_putattrbit(nd, &attrbits); 1537 } 1538 error = nfscl_request(nd, vp, p, cred, stuff); 1539 if (error) 1540 return (error); 1541 if (nd->nd_repstat) { 1542 /* 1543 * In case the rpc gets retried, roll 1544 * the uio fileds changed by nfsm_uiombuf() 1545 * back. 1546 */ 1547 uiop->uio_offset -= len; 1548 uio_uio_resid_add(uiop, len); 1549 uio_iov_base_add(uiop, -len); 1550 uio_iov_len_add(uiop, len); 1551 } 1552 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1553 error = nfscl_wcc_data(nd, vp, nap, attrflagp, 1554 &wccflag, stuff); 1555 if (error) 1556 goto nfsmout; 1557 } 1558 if (!nd->nd_repstat) { 1559 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1560 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1561 + NFSX_VERF); 1562 rlen = fxdr_unsigned(int, *tl++); 1563 if (rlen == 0) { 1564 error = NFSERR_IO; 1565 goto nfsmout; 1566 } else if (rlen < len) { 1567 backup = len - rlen; 1568 uio_iov_base_add(uiop, -(backup)); 1569 uio_iov_len_add(uiop, backup); 1570 uiop->uio_offset -= backup; 1571 uio_uio_resid_add(uiop, backup); 1572 len = rlen; 1573 } 1574 commit = fxdr_unsigned(int, *tl++); 1575 1576 /* 1577 * Return the lowest committment level 1578 * obtained by any of the RPCs. 1579 */ 1580 if (committed == NFSWRITE_FILESYNC) 1581 committed = commit; 1582 else if (committed == NFSWRITE_DATASYNC && 1583 commit == NFSWRITE_UNSTABLE) 1584 committed = commit; 1585 NFSLOCKMNT(nmp); 1586 if (!NFSHASWRITEVERF(nmp)) { 1587 NFSBCOPY((caddr_t)tl, 1588 (caddr_t)&nmp->nm_verf[0], 1589 NFSX_VERF); 1590 NFSSETWRITEVERF(nmp); 1591 } else if (NFSBCMP(tl, nmp->nm_verf, 1592 NFSX_VERF)) { 1593 *must_commit = 1; 1594 NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); 1595 } 1596 NFSUNLOCKMNT(nmp); 1597 } 1598 if (nd->nd_flag & ND_NFSV4) 1599 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1600 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { 1601 error = nfsm_loadattr(nd, nap); 1602 if (!error) 1603 *attrflagp = NFS_LATTR_NOSHRINK; 1604 } 1605 } else { 1606 error = nd->nd_repstat; 1607 } 1608 if (error) 1609 goto nfsmout; 1610 NFSWRITERPC_SETTIME(wccflag, np, (nd->nd_flag & ND_NFSV4)); 1611 mbuf_freem(nd->nd_mrep); 1612 nd->nd_mrep = NULL; 1613 tsiz -= len; 1614 } 1615 nfsmout: 1616 if (nd->nd_mrep != NULL) 1617 mbuf_freem(nd->nd_mrep); 1618 *iomode = committed; 1619 if (nd->nd_repstat && !error) 1620 error = nd->nd_repstat; 1621 return (error); 1622 } 1623 1624 /* 1625 * nfs mknod rpc 1626 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1627 * mode set to specify the file type and the size field for rdev. 1628 */ 1629 APPLESTATIC int 1630 nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1631 u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, 1632 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1633 int *attrflagp, int *dattrflagp, void *dstuff) 1634 { 1635 u_int32_t *tl; 1636 int error = 0; 1637 struct nfsrv_descript nfsd, *nd = &nfsd; 1638 nfsattrbit_t attrbits; 1639 1640 *nfhpp = NULL; 1641 *attrflagp = 0; 1642 *dattrflagp = 0; 1643 if (namelen > NFS_MAXNAMLEN) 1644 return (ENAMETOOLONG); 1645 NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); 1646 if (nd->nd_flag & ND_NFSV4) { 1647 if (vtyp == VBLK || vtyp == VCHR) { 1648 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1649 *tl++ = vtonfsv34_type(vtyp); 1650 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1651 *tl = txdr_unsigned(NFSMINOR(rdev)); 1652 } else { 1653 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1654 *tl = vtonfsv34_type(vtyp); 1655 } 1656 } 1657 (void) nfsm_strtom(nd, name, namelen); 1658 if (nd->nd_flag & ND_NFSV3) { 1659 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1660 *tl = vtonfsv34_type(vtyp); 1661 } 1662 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1663 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1664 if ((nd->nd_flag & ND_NFSV3) && 1665 (vtyp == VCHR || vtyp == VBLK)) { 1666 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1667 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1668 *tl = txdr_unsigned(NFSMINOR(rdev)); 1669 } 1670 if (nd->nd_flag & ND_NFSV4) { 1671 NFSGETATTR_ATTRBIT(&attrbits); 1672 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1673 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1674 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1675 (void) nfsrv_putattrbit(nd, &attrbits); 1676 } 1677 if (nd->nd_flag & ND_NFSV2) 1678 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); 1679 error = nfscl_request(nd, dvp, p, cred, dstuff); 1680 if (error) 1681 return (error); 1682 if (nd->nd_flag & ND_NFSV4) 1683 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1684 if (!nd->nd_repstat) { 1685 if (nd->nd_flag & ND_NFSV4) { 1686 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1687 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1688 if (error) 1689 goto nfsmout; 1690 } 1691 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1692 if (error) 1693 goto nfsmout; 1694 } 1695 if (nd->nd_flag & ND_NFSV3) 1696 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1697 if (!error && nd->nd_repstat) 1698 error = nd->nd_repstat; 1699 nfsmout: 1700 mbuf_freem(nd->nd_mrep); 1701 return (error); 1702 } 1703 1704 /* 1705 * nfs file create call 1706 * Mostly just call the approriate routine. (I separated out v4, so that 1707 * error recovery wouldn't be as difficult.) 1708 */ 1709 APPLESTATIC int 1710 nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1711 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1712 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1713 int *attrflagp, int *dattrflagp, void *dstuff) 1714 { 1715 int error = 0, newone, expireret = 0, retrycnt, unlocked; 1716 struct nfsclowner *owp; 1717 struct nfscldeleg *dp; 1718 struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); 1719 u_int32_t clidrev; 1720 1721 if (NFSHASNFSV4(nmp)) { 1722 retrycnt = 0; 1723 do { 1724 dp = NULL; 1725 error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | 1726 NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, 1727 NULL, 1); 1728 if (error) 1729 return (error); 1730 if (nmp->nm_clp != NULL) 1731 clidrev = nmp->nm_clp->nfsc_clientidrev; 1732 else 1733 clidrev = 0; 1734 error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, fmode, 1735 owp, &dp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1736 dstuff, &unlocked); 1737 /* 1738 * There is no need to invalidate cached attributes here, 1739 * since new post-delegation issue attributes are always 1740 * returned by nfsrpc_createv4() and these will update the 1741 * attribute cache. 1742 */ 1743 if (dp != NULL) 1744 (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, 1745 (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); 1746 nfscl_ownerrelease(owp, error, newone, unlocked); 1747 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1748 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 1749 (void) nfs_catnap(PZERO, error, "nfs_open"); 1750 } else if ((error == NFSERR_EXPIRED || 1751 error == NFSERR_BADSTATEID) && clidrev != 0) { 1752 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1753 retrycnt++; 1754 } 1755 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1756 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1757 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1758 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1759 if (error && retrycnt >= 4) 1760 error = EIO; 1761 } else { 1762 error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, 1763 fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1764 dstuff); 1765 } 1766 return (error); 1767 } 1768 1769 /* 1770 * The create rpc for v2 and 3. 1771 */ 1772 static int 1773 nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1774 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1775 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1776 int *attrflagp, int *dattrflagp, void *dstuff) 1777 { 1778 u_int32_t *tl; 1779 int error = 0; 1780 struct nfsrv_descript nfsd, *nd = &nfsd; 1781 1782 *nfhpp = NULL; 1783 *attrflagp = 0; 1784 *dattrflagp = 0; 1785 if (namelen > NFS_MAXNAMLEN) 1786 return (ENAMETOOLONG); 1787 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1788 (void) nfsm_strtom(nd, name, namelen); 1789 if (nd->nd_flag & ND_NFSV3) { 1790 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1791 if (fmode & O_EXCL) { 1792 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1793 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1794 *tl++ = cverf.lval[0]; 1795 *tl = cverf.lval[1]; 1796 } else { 1797 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1798 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1799 } 1800 } else { 1801 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); 1802 } 1803 error = nfscl_request(nd, dvp, p, cred, dstuff); 1804 if (error) 1805 return (error); 1806 if (nd->nd_repstat == 0) { 1807 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1808 if (error) 1809 goto nfsmout; 1810 } 1811 if (nd->nd_flag & ND_NFSV3) 1812 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1813 if (nd->nd_repstat != 0 && error == 0) 1814 error = nd->nd_repstat; 1815 nfsmout: 1816 mbuf_freem(nd->nd_mrep); 1817 return (error); 1818 } 1819 1820 static int 1821 nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1822 nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, 1823 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 1824 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 1825 int *dattrflagp, void *dstuff, int *unlockedp) 1826 { 1827 u_int32_t *tl; 1828 int error = 0, deleg, newone, ret, acesize, limitby; 1829 struct nfsrv_descript nfsd, *nd = &nfsd; 1830 struct nfsclopen *op; 1831 struct nfscldeleg *dp = NULL; 1832 struct nfsnode *np; 1833 struct nfsfh *nfhp; 1834 nfsattrbit_t attrbits; 1835 nfsv4stateid_t stateid; 1836 u_int32_t rflags; 1837 1838 *unlockedp = 0; 1839 *nfhpp = NULL; 1840 *dpp = NULL; 1841 *attrflagp = 0; 1842 *dattrflagp = 0; 1843 if (namelen > NFS_MAXNAMLEN) 1844 return (ENAMETOOLONG); 1845 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1846 /* 1847 * For V4, this is actually an Open op. 1848 */ 1849 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1850 *tl++ = txdr_unsigned(owp->nfsow_seqid); 1851 *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | 1852 NFSV4OPEN_ACCESSREAD); 1853 *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); 1854 *tl++ = owp->nfsow_clp->nfsc_clientid.lval[0]; 1855 *tl = owp->nfsow_clp->nfsc_clientid.lval[1]; 1856 (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); 1857 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1858 *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); 1859 if (fmode & O_EXCL) { 1860 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1861 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1862 *tl++ = cverf.lval[0]; 1863 *tl = cverf.lval[1]; 1864 } else { 1865 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1866 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1867 } 1868 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1869 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 1870 (void) nfsm_strtom(nd, name, namelen); 1871 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1872 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1873 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1874 NFSGETATTR_ATTRBIT(&attrbits); 1875 (void) nfsrv_putattrbit(nd, &attrbits); 1876 error = nfscl_request(nd, dvp, p, cred, dstuff); 1877 if (error) 1878 return (error); 1879 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1880 if (error) 1881 goto nfsmout; 1882 NFSCL_INCRSEQID(owp->nfsow_seqid, nd); 1883 if (nd->nd_repstat == 0) { 1884 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1885 6 * NFSX_UNSIGNED); 1886 stateid.seqid = *tl++; 1887 stateid.other[0] = *tl++; 1888 stateid.other[1] = *tl++; 1889 stateid.other[2] = *tl; 1890 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 1891 (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1892 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1893 deleg = fxdr_unsigned(int, *tl); 1894 if (deleg == NFSV4OPEN_DELEGATEREAD || 1895 deleg == NFSV4OPEN_DELEGATEWRITE) { 1896 if (!(owp->nfsow_clp->nfsc_flags & 1897 NFSCLFLAGS_FIRSTDELEG)) 1898 owp->nfsow_clp->nfsc_flags |= 1899 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 1900 MALLOC(dp, struct nfscldeleg *, 1901 sizeof (struct nfscldeleg) + NFSX_V4FHMAX, 1902 M_NFSCLDELEG, M_WAITOK); 1903 LIST_INIT(&dp->nfsdl_owner); 1904 LIST_INIT(&dp->nfsdl_lock); 1905 dp->nfsdl_clp = owp->nfsow_clp; 1906 newnfs_copyincred(cred, &dp->nfsdl_cred); 1907 nfscl_lockinit(&dp->nfsdl_rwlock); 1908 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1909 NFSX_UNSIGNED); 1910 dp->nfsdl_stateid.seqid = *tl++; 1911 dp->nfsdl_stateid.other[0] = *tl++; 1912 dp->nfsdl_stateid.other[1] = *tl++; 1913 dp->nfsdl_stateid.other[2] = *tl++; 1914 ret = fxdr_unsigned(int, *tl); 1915 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 1916 dp->nfsdl_flags = NFSCLDL_WRITE; 1917 /* 1918 * Indicates how much the file can grow. 1919 */ 1920 NFSM_DISSECT(tl, u_int32_t *, 1921 3 * NFSX_UNSIGNED); 1922 limitby = fxdr_unsigned(int, *tl++); 1923 switch (limitby) { 1924 case NFSV4OPEN_LIMITSIZE: 1925 dp->nfsdl_sizelimit = fxdr_hyper(tl); 1926 break; 1927 case NFSV4OPEN_LIMITBLOCKS: 1928 dp->nfsdl_sizelimit = 1929 fxdr_unsigned(u_int64_t, *tl++); 1930 dp->nfsdl_sizelimit *= 1931 fxdr_unsigned(u_int64_t, *tl); 1932 break; 1933 default: 1934 error = NFSERR_BADXDR; 1935 goto nfsmout; 1936 }; 1937 } else { 1938 dp->nfsdl_flags = NFSCLDL_READ; 1939 } 1940 if (ret) 1941 dp->nfsdl_flags |= NFSCLDL_RECALL; 1942 error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, 1943 &acesize, p); 1944 if (error) 1945 goto nfsmout; 1946 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 1947 error = NFSERR_BADXDR; 1948 goto nfsmout; 1949 } 1950 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1951 if (error) 1952 goto nfsmout; 1953 if (dp != NULL && *attrflagp) { 1954 dp->nfsdl_change = nnap->na_filerev; 1955 dp->nfsdl_modtime = nnap->na_mtime; 1956 dp->nfsdl_flags |= NFSCLDL_MODTIMESET; 1957 } 1958 /* 1959 * We can now complete the Open state. 1960 */ 1961 nfhp = *nfhpp; 1962 if (dp != NULL) { 1963 dp->nfsdl_fhlen = nfhp->nfh_len; 1964 NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); 1965 } 1966 /* 1967 * Get an Open structure that will be 1968 * attached to the OpenOwner, acquired already. 1969 */ 1970 error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, 1971 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, 1972 cred, p, NULL, &op, &newone, NULL, 0); 1973 if (error) 1974 goto nfsmout; 1975 op->nfso_stateid = stateid; 1976 newnfs_copyincred(cred, &op->nfso_cred); 1977 if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { 1978 do { 1979 ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, 1980 nfhp->nfh_len, op, cred, p); 1981 if (ret == NFSERR_DELAY) 1982 (void) nfs_catnap(PZERO, ret, "nfs_create"); 1983 } while (ret == NFSERR_DELAY); 1984 error = ret; 1985 } 1986 1987 /* 1988 * If the server is handing out delegations, but we didn't 1989 * get one because an OpenConfirm was required, try the 1990 * Open again, to get a delegation. This is a harmless no-op, 1991 * from a server's point of view. 1992 */ 1993 if ((rflags & NFSV4OPEN_RESULTCONFIRM) && 1994 (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && 1995 !error && dp == NULL) { 1996 np = VTONFS(dvp); 1997 do { 1998 ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, 1999 np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 2000 nfhp->nfh_fh, nfhp->nfh_len, 2001 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, 2002 name, namelen, &dp, 0, 0x0, cred, p, 0, 1); 2003 if (ret == NFSERR_DELAY) 2004 (void) nfs_catnap(PZERO, ret, "nfs_crt2"); 2005 } while (ret == NFSERR_DELAY); 2006 if (ret) { 2007 if (dp != NULL) 2008 FREE((caddr_t)dp, M_NFSCLDELEG); 2009 if (ret == NFSERR_STALECLIENTID || 2010 ret == NFSERR_STALEDONTRECOVER) 2011 error = ret; 2012 } 2013 } 2014 nfscl_openrelease(op, error, newone); 2015 *unlockedp = 1; 2016 } 2017 if (nd->nd_repstat != 0 && error == 0) 2018 error = nd->nd_repstat; 2019 if (error == NFSERR_STALECLIENTID) 2020 nfscl_initiate_recovery(owp->nfsow_clp); 2021 nfsmout: 2022 if (!error) 2023 *dpp = dp; 2024 else if (dp != NULL) 2025 FREE((caddr_t)dp, M_NFSCLDELEG); 2026 mbuf_freem(nd->nd_mrep); 2027 return (error); 2028 } 2029 2030 /* 2031 * Nfs remove rpc 2032 */ 2033 APPLESTATIC int 2034 nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, 2035 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, 2036 void *dstuff) 2037 { 2038 u_int32_t *tl; 2039 struct nfsrv_descript nfsd, *nd = &nfsd; 2040 struct nfsnode *np; 2041 struct nfsmount *nmp; 2042 nfsv4stateid_t dstateid; 2043 int error, ret = 0, i; 2044 2045 *dattrflagp = 0; 2046 if (namelen > NFS_MAXNAMLEN) 2047 return (ENAMETOOLONG); 2048 nmp = VFSTONFS(vnode_mount(dvp)); 2049 tryagain: 2050 if (NFSHASNFSV4(nmp) && ret == 0) { 2051 ret = nfscl_removedeleg(vp, p, &dstateid); 2052 if (ret == 1) { 2053 NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); 2054 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 2055 NFSX_UNSIGNED); 2056 *tl++ = dstateid.seqid; 2057 *tl++ = dstateid.other[0]; 2058 *tl++ = dstateid.other[1]; 2059 *tl++ = dstateid.other[2]; 2060 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2061 np = VTONFS(dvp); 2062 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2063 np->n_fhp->nfh_len, 0); 2064 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2065 *tl = txdr_unsigned(NFSV4OP_REMOVE); 2066 } 2067 } else { 2068 ret = 0; 2069 } 2070 if (ret == 0) 2071 NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); 2072 (void) nfsm_strtom(nd, name, namelen); 2073 error = nfscl_request(nd, dvp, p, cred, dstuff); 2074 if (error) 2075 return (error); 2076 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2077 /* For NFSv4, parse out any Delereturn replies. */ 2078 if (ret > 0 && nd->nd_repstat != 0 && 2079 (nd->nd_flag & ND_NOMOREDATA)) { 2080 /* 2081 * If the Delegreturn failed, try again without 2082 * it. The server will Recall, as required. 2083 */ 2084 mbuf_freem(nd->nd_mrep); 2085 goto tryagain; 2086 } 2087 for (i = 0; i < (ret * 2); i++) { 2088 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2089 ND_NFSV4) { 2090 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2091 if (*(tl + 1)) 2092 nd->nd_flag |= ND_NOMOREDATA; 2093 } 2094 } 2095 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2096 } 2097 if (nd->nd_repstat && !error) 2098 error = nd->nd_repstat; 2099 nfsmout: 2100 mbuf_freem(nd->nd_mrep); 2101 return (error); 2102 } 2103 2104 /* 2105 * Do an nfs rename rpc. 2106 */ 2107 APPLESTATIC int 2108 nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, 2109 vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, 2110 NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, 2111 int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) 2112 { 2113 u_int32_t *tl; 2114 struct nfsrv_descript nfsd, *nd = &nfsd; 2115 struct nfsmount *nmp; 2116 struct nfsnode *np; 2117 nfsattrbit_t attrbits; 2118 nfsv4stateid_t fdstateid, tdstateid; 2119 int error = 0, ret = 0, gottd = 0, gotfd = 0, i; 2120 2121 *fattrflagp = 0; 2122 *tattrflagp = 0; 2123 nmp = VFSTONFS(vnode_mount(fdvp)); 2124 if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) 2125 return (ENAMETOOLONG); 2126 tryagain: 2127 if (NFSHASNFSV4(nmp) && ret == 0) { 2128 ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, 2129 &tdstateid, &gottd, p); 2130 if (gotfd && gottd) { 2131 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); 2132 } else if (gotfd) { 2133 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); 2134 } else if (gottd) { 2135 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); 2136 } 2137 if (gotfd) { 2138 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2139 *tl++ = fdstateid.seqid; 2140 *tl++ = fdstateid.other[0]; 2141 *tl++ = fdstateid.other[1]; 2142 *tl = fdstateid.other[2]; 2143 if (gottd) { 2144 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2145 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2146 np = VTONFS(tvp); 2147 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2148 np->n_fhp->nfh_len, 0); 2149 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2150 *tl = txdr_unsigned(NFSV4OP_DELEGRETURN); 2151 } 2152 } 2153 if (gottd) { 2154 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2155 *tl++ = tdstateid.seqid; 2156 *tl++ = tdstateid.other[0]; 2157 *tl++ = tdstateid.other[1]; 2158 *tl = tdstateid.other[2]; 2159 } 2160 if (ret > 0) { 2161 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2162 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2163 np = VTONFS(fdvp); 2164 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2165 np->n_fhp->nfh_len, 0); 2166 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2167 *tl = txdr_unsigned(NFSV4OP_SAVEFH); 2168 } 2169 } else { 2170 ret = 0; 2171 } 2172 if (ret == 0) 2173 NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); 2174 if (nd->nd_flag & ND_NFSV4) { 2175 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2176 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2177 NFSWCCATTR_ATTRBIT(&attrbits); 2178 (void) nfsrv_putattrbit(nd, &attrbits); 2179 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2180 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2181 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2182 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2183 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2184 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2185 (void) nfsrv_putattrbit(nd, &attrbits); 2186 nd->nd_flag |= ND_V4WCCATTR; 2187 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2188 *tl = txdr_unsigned(NFSV4OP_RENAME); 2189 } 2190 (void) nfsm_strtom(nd, fnameptr, fnamelen); 2191 if (!(nd->nd_flag & ND_NFSV4)) 2192 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2193 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2194 (void) nfsm_strtom(nd, tnameptr, tnamelen); 2195 error = nfscl_request(nd, fdvp, p, cred, fstuff); 2196 if (error) 2197 return (error); 2198 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2199 /* For NFSv4, parse out any Delereturn replies. */ 2200 if (ret > 0 && nd->nd_repstat != 0 && 2201 (nd->nd_flag & ND_NOMOREDATA)) { 2202 /* 2203 * If the Delegreturn failed, try again without 2204 * it. The server will Recall, as required. 2205 */ 2206 mbuf_freem(nd->nd_mrep); 2207 goto tryagain; 2208 } 2209 for (i = 0; i < (ret * 2); i++) { 2210 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2211 ND_NFSV4) { 2212 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2213 if (*(tl + 1)) { 2214 if (i == 0 && ret > 1) { 2215 /* 2216 * If the Delegreturn failed, try again 2217 * without it. The server will Recall, as 2218 * required. 2219 * If ret > 1, the first iteration of this 2220 * loop is the second DelegReturn result. 2221 */ 2222 mbuf_freem(nd->nd_mrep); 2223 goto tryagain; 2224 } else { 2225 nd->nd_flag |= ND_NOMOREDATA; 2226 } 2227 } 2228 } 2229 } 2230 /* Now, the first wcc attribute reply. */ 2231 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2232 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2233 if (*(tl + 1)) 2234 nd->nd_flag |= ND_NOMOREDATA; 2235 } 2236 error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, 2237 fstuff); 2238 /* and the second wcc attribute reply. */ 2239 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && 2240 !error) { 2241 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2242 if (*(tl + 1)) 2243 nd->nd_flag |= ND_NOMOREDATA; 2244 } 2245 if (!error) 2246 error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, 2247 NULL, tstuff); 2248 } 2249 if (nd->nd_repstat && !error) 2250 error = nd->nd_repstat; 2251 nfsmout: 2252 mbuf_freem(nd->nd_mrep); 2253 return (error); 2254 } 2255 2256 /* 2257 * nfs hard link create rpc 2258 */ 2259 APPLESTATIC int 2260 nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, 2261 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2262 struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) 2263 { 2264 u_int32_t *tl; 2265 struct nfsrv_descript nfsd, *nd = &nfsd; 2266 nfsattrbit_t attrbits; 2267 int error = 0; 2268 2269 *attrflagp = 0; 2270 *dattrflagp = 0; 2271 if (namelen > NFS_MAXNAMLEN) 2272 return (ENAMETOOLONG); 2273 NFSCL_REQSTART(nd, NFSPROC_LINK, vp); 2274 if (nd->nd_flag & ND_NFSV4) { 2275 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2276 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2277 } 2278 (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, 2279 VTONFS(dvp)->n_fhp->nfh_len, 0); 2280 if (nd->nd_flag & ND_NFSV4) { 2281 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2282 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2283 NFSWCCATTR_ATTRBIT(&attrbits); 2284 (void) nfsrv_putattrbit(nd, &attrbits); 2285 nd->nd_flag |= ND_V4WCCATTR; 2286 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2287 *tl = txdr_unsigned(NFSV4OP_LINK); 2288 } 2289 (void) nfsm_strtom(nd, name, namelen); 2290 error = nfscl_request(nd, vp, p, cred, dstuff); 2291 if (error) 2292 return (error); 2293 if (nd->nd_flag & ND_NFSV3) { 2294 error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); 2295 if (!error) 2296 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2297 NULL, dstuff); 2298 } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2299 /* 2300 * First, parse out the PutFH and Getattr result. 2301 */ 2302 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2303 if (!(*(tl + 1))) 2304 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2305 if (*(tl + 1)) 2306 nd->nd_flag |= ND_NOMOREDATA; 2307 /* 2308 * Get the pre-op attributes. 2309 */ 2310 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2311 } 2312 if (nd->nd_repstat && !error) 2313 error = nd->nd_repstat; 2314 nfsmout: 2315 mbuf_freem(nd->nd_mrep); 2316 return (error); 2317 } 2318 2319 /* 2320 * nfs symbolic link create rpc 2321 */ 2322 APPLESTATIC int 2323 nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, 2324 struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2325 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2326 int *dattrflagp, void *dstuff) 2327 { 2328 u_int32_t *tl; 2329 struct nfsrv_descript nfsd, *nd = &nfsd; 2330 struct nfsmount *nmp; 2331 int slen, error = 0; 2332 2333 *nfhpp = NULL; 2334 *attrflagp = 0; 2335 *dattrflagp = 0; 2336 nmp = VFSTONFS(vnode_mount(dvp)); 2337 slen = strlen(target); 2338 if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) 2339 return (ENAMETOOLONG); 2340 NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); 2341 if (nd->nd_flag & ND_NFSV4) { 2342 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2343 *tl = txdr_unsigned(NFLNK); 2344 (void) nfsm_strtom(nd, target, slen); 2345 } 2346 (void) nfsm_strtom(nd, name, namelen); 2347 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2348 nfscl_fillsattr(nd, vap, dvp, 0, 0); 2349 if (!(nd->nd_flag & ND_NFSV4)) 2350 (void) nfsm_strtom(nd, target, slen); 2351 if (nd->nd_flag & ND_NFSV2) 2352 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2353 error = nfscl_request(nd, dvp, p, cred, dstuff); 2354 if (error) 2355 return (error); 2356 if (nd->nd_flag & ND_NFSV4) 2357 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2358 if ((nd->nd_flag & ND_NFSV3) && !error) { 2359 if (!nd->nd_repstat) 2360 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2361 if (!error) 2362 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2363 NULL, dstuff); 2364 } 2365 if (nd->nd_repstat && !error) 2366 error = nd->nd_repstat; 2367 mbuf_freem(nd->nd_mrep); 2368 /* 2369 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2370 */ 2371 if (error == EEXIST) 2372 error = 0; 2373 return (error); 2374 } 2375 2376 /* 2377 * nfs make dir rpc 2378 */ 2379 APPLESTATIC int 2380 nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, 2381 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2382 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2383 int *dattrflagp, void *dstuff) 2384 { 2385 u_int32_t *tl; 2386 struct nfsrv_descript nfsd, *nd = &nfsd; 2387 nfsattrbit_t attrbits; 2388 int error = 0; 2389 2390 *nfhpp = NULL; 2391 *attrflagp = 0; 2392 *dattrflagp = 0; 2393 if (namelen > NFS_MAXNAMLEN) 2394 return (ENAMETOOLONG); 2395 NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); 2396 if (nd->nd_flag & ND_NFSV4) { 2397 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2398 *tl = txdr_unsigned(NFDIR); 2399 } 2400 (void) nfsm_strtom(nd, name, namelen); 2401 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2402 if (nd->nd_flag & ND_NFSV4) { 2403 NFSGETATTR_ATTRBIT(&attrbits); 2404 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2405 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2406 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2407 (void) nfsrv_putattrbit(nd, &attrbits); 2408 } 2409 error = nfscl_request(nd, dvp, p, cred, dstuff); 2410 if (error) 2411 return (error); 2412 if (nd->nd_flag & ND_NFSV4) 2413 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2414 if (!nd->nd_repstat && !error) { 2415 if (nd->nd_flag & ND_NFSV4) { 2416 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2417 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 2418 } 2419 if (!error) 2420 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2421 } 2422 if ((nd->nd_flag & ND_NFSV3) && !error) 2423 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2424 if (nd->nd_repstat && !error) 2425 error = nd->nd_repstat; 2426 nfsmout: 2427 mbuf_freem(nd->nd_mrep); 2428 /* 2429 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry. 2430 */ 2431 if (error == EEXIST) 2432 error = 0; 2433 return (error); 2434 } 2435 2436 /* 2437 * nfs remove directory call 2438 */ 2439 APPLESTATIC int 2440 nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, 2441 NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) 2442 { 2443 struct nfsrv_descript nfsd, *nd = &nfsd; 2444 int error = 0; 2445 2446 *dattrflagp = 0; 2447 if (namelen > NFS_MAXNAMLEN) 2448 return (ENAMETOOLONG); 2449 NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); 2450 (void) nfsm_strtom(nd, name, namelen); 2451 error = nfscl_request(nd, dvp, p, cred, dstuff); 2452 if (error) 2453 return (error); 2454 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2455 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2456 if (nd->nd_repstat && !error) 2457 error = nd->nd_repstat; 2458 mbuf_freem(nd->nd_mrep); 2459 /* 2460 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2461 */ 2462 if (error == ENOENT) 2463 error = 0; 2464 return (error); 2465 } 2466 2467 /* 2468 * Readdir rpc. 2469 * Always returns with either uio_resid unchanged, if you are at the 2470 * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks 2471 * filled in. 2472 * I felt this would allow caching of directory blocks more easily 2473 * than returning a pertially filled block. 2474 * Directory offset cookies: 2475 * Oh my, what to do with them... 2476 * I can think of three ways to deal with them: 2477 * 1 - have the layer above these RPCs maintain a map between logical 2478 * directory byte offsets and the NFS directory offset cookies 2479 * 2 - pass the opaque directory offset cookies up into userland 2480 * and let the libc functions deal with them, via the system call 2481 * 3 - return them to userland in the "struct dirent", so future versions 2482 * of libc can use them and do whatever is necessary to amke things work 2483 * above these rpc calls, in the meantime 2484 * For now, I do #3 by "hiding" the directory offset cookies after the 2485 * d_name field in struct dirent. This is space inside d_reclen that 2486 * will be ignored by anything that doesn't know about them. 2487 * The directory offset cookies are filled in as the last 8 bytes of 2488 * each directory entry, after d_name. Someday, the userland libc 2489 * functions may be able to use these. In the meantime, it satisfies 2490 * OpenBSD's requirements for cookies being returned. 2491 * If expects the directory offset cookie for the read to be in uio_offset 2492 * and returns the one for the next entry after this directory block in 2493 * there, as well. 2494 */ 2495 APPLESTATIC int 2496 nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2497 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2498 int *eofp, void *stuff) 2499 { 2500 int len, left; 2501 struct dirent *dp = NULL; 2502 u_int32_t *tl; 2503 nfsquad_t cookie, ncookie; 2504 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2505 struct nfsnode *dnp = VTONFS(vp); 2506 struct nfsvattr nfsva; 2507 struct nfsrv_descript nfsd, *nd = &nfsd; 2508 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2509 int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; 2510 long dotfileid, dotdotfileid = 0; 2511 u_int32_t fakefileno = 0xffffffff, rderr; 2512 char *cp; 2513 nfsattrbit_t attrbits, dattrbits; 2514 u_int32_t *tl2 = NULL; 2515 size_t tresid; 2516 2517 KASSERT(uiop->uio_iovcnt == 1 && 2518 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2519 ("nfs readdirrpc bad uio")); 2520 2521 /* 2522 * There is no point in reading a lot more than uio_resid, however 2523 * adding one additional DIRBLKSIZ makes sense. Since uio_resid 2524 * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this 2525 * will never make readsize > nm_readdirsize. 2526 */ 2527 readsize = nmp->nm_readdirsize; 2528 if (readsize > uio_uio_resid(uiop)) 2529 readsize = uio_uio_resid(uiop) + DIRBLKSIZ; 2530 2531 *attrflagp = 0; 2532 if (eofp) 2533 *eofp = 0; 2534 tresid = uio_uio_resid(uiop); 2535 cookie.lval[0] = cookiep->nfsuquad[0]; 2536 cookie.lval[1] = cookiep->nfsuquad[1]; 2537 nd->nd_mrep = NULL; 2538 2539 /* 2540 * For NFSv4, first create the "." and ".." entries. 2541 */ 2542 if (NFSHASNFSV4(nmp)) { 2543 reqsize = 6 * NFSX_UNSIGNED; 2544 NFSGETATTR_ATTRBIT(&dattrbits); 2545 NFSZERO_ATTRBIT(&attrbits); 2546 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2547 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); 2548 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2549 NFSATTRBIT_MOUNTEDONFILEID)) { 2550 NFSSETBIT_ATTRBIT(&attrbits, 2551 NFSATTRBIT_MOUNTEDONFILEID); 2552 gotmnton = 1; 2553 } else { 2554 /* 2555 * Must fake it. Use the fileno, except when the 2556 * fsid is != to that of the directory. For that 2557 * case, generate a fake fileno that is not the same. 2558 */ 2559 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2560 gotmnton = 0; 2561 } 2562 2563 /* 2564 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2565 */ 2566 if (uiop->uio_offset == 0) { 2567 #if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2568 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2569 #else 2570 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2571 #endif 2572 if (error) 2573 return (error); 2574 dotfileid = nfsva.na_fileid; 2575 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2576 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2577 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2578 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2579 (void) nfsrv_putattrbit(nd, &attrbits); 2580 error = nfscl_request(nd, vp, p, cred, stuff); 2581 if (error) 2582 return (error); 2583 if (nd->nd_repstat == 0) { 2584 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2585 len = fxdr_unsigned(int, *(tl + 2)); 2586 if (len > 0 && len <= NFSX_V4FHMAX) 2587 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2588 else 2589 error = EPERM; 2590 if (!error) { 2591 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2592 nfsva.na_mntonfileno = 0xffffffff; 2593 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2594 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2595 NULL, NULL, NULL, p, cred); 2596 if (error) { 2597 dotdotfileid = dotfileid; 2598 } else if (gotmnton) { 2599 if (nfsva.na_mntonfileno != 0xffffffff) 2600 dotdotfileid = nfsva.na_mntonfileno; 2601 else 2602 dotdotfileid = nfsva.na_fileid; 2603 } else if (nfsva.na_filesid[0] == 2604 dnp->n_vattr.na_filesid[0] && 2605 nfsva.na_filesid[1] == 2606 dnp->n_vattr.na_filesid[1]) { 2607 dotdotfileid = nfsva.na_fileid; 2608 } else { 2609 do { 2610 fakefileno--; 2611 } while (fakefileno == 2612 nfsva.na_fileid); 2613 dotdotfileid = fakefileno; 2614 } 2615 } 2616 } else if (nd->nd_repstat == NFSERR_NOENT) { 2617 /* 2618 * Lookupp returns NFSERR_NOENT when we are 2619 * at the root, so just use the current dir. 2620 */ 2621 nd->nd_repstat = 0; 2622 dotdotfileid = dotfileid; 2623 } else { 2624 error = nd->nd_repstat; 2625 } 2626 mbuf_freem(nd->nd_mrep); 2627 if (error) 2628 return (error); 2629 nd->nd_mrep = NULL; 2630 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2631 dp->d_type = DT_DIR; 2632 dp->d_fileno = dotfileid; 2633 dp->d_namlen = 1; 2634 dp->d_name[0] = '.'; 2635 dp->d_name[1] = '\0'; 2636 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2637 /* 2638 * Just make these offset cookie 0. 2639 */ 2640 tl = (u_int32_t *)&dp->d_name[4]; 2641 *tl++ = 0; 2642 *tl = 0; 2643 blksiz += dp->d_reclen; 2644 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2645 uiop->uio_offset += dp->d_reclen; 2646 uio_iov_base_add(uiop, dp->d_reclen); 2647 uio_iov_len_add(uiop, -(dp->d_reclen)); 2648 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2649 dp->d_type = DT_DIR; 2650 dp->d_fileno = dotdotfileid; 2651 dp->d_namlen = 2; 2652 dp->d_name[0] = '.'; 2653 dp->d_name[1] = '.'; 2654 dp->d_name[2] = '\0'; 2655 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2656 /* 2657 * Just make these offset cookie 0. 2658 */ 2659 tl = (u_int32_t *)&dp->d_name[4]; 2660 *tl++ = 0; 2661 *tl = 0; 2662 blksiz += dp->d_reclen; 2663 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2664 uiop->uio_offset += dp->d_reclen; 2665 uio_iov_base_add(uiop, dp->d_reclen); 2666 uio_iov_len_add(uiop, -(dp->d_reclen)); 2667 } 2668 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); 2669 } else { 2670 reqsize = 5 * NFSX_UNSIGNED; 2671 } 2672 2673 2674 /* 2675 * Loop around doing readdir rpc's of size readsize. 2676 * The stopping criteria is EOF or buffer full. 2677 */ 2678 while (more_dirs && bigenough) { 2679 *attrflagp = 0; 2680 NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); 2681 if (nd->nd_flag & ND_NFSV2) { 2682 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2683 *tl++ = cookie.lval[1]; 2684 *tl = txdr_unsigned(readsize); 2685 } else { 2686 NFSM_BUILD(tl, u_int32_t *, reqsize); 2687 *tl++ = cookie.lval[0]; 2688 *tl++ = cookie.lval[1]; 2689 if (cookie.qval == 0) { 2690 *tl++ = 0; 2691 *tl++ = 0; 2692 } else { 2693 NFSLOCKNODE(dnp); 2694 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2695 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2696 NFSUNLOCKNODE(dnp); 2697 } 2698 if (nd->nd_flag & ND_NFSV4) { 2699 *tl++ = txdr_unsigned(readsize); 2700 *tl = txdr_unsigned(readsize); 2701 (void) nfsrv_putattrbit(nd, &attrbits); 2702 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2703 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2704 (void) nfsrv_putattrbit(nd, &dattrbits); 2705 } else { 2706 *tl = txdr_unsigned(readsize); 2707 } 2708 } 2709 error = nfscl_request(nd, vp, p, cred, stuff); 2710 if (error) 2711 return (error); 2712 if (!(nd->nd_flag & ND_NFSV2)) { 2713 if (nd->nd_flag & ND_NFSV3) 2714 error = nfscl_postop_attr(nd, nap, attrflagp, 2715 stuff); 2716 if (!nd->nd_repstat && !error) { 2717 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 2718 NFSLOCKNODE(dnp); 2719 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2720 dnp->n_cookieverf.nfsuquad[1] = *tl; 2721 NFSUNLOCKNODE(dnp); 2722 } 2723 } 2724 if (nd->nd_repstat || error) { 2725 if (!error) 2726 error = nd->nd_repstat; 2727 goto nfsmout; 2728 } 2729 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2730 more_dirs = fxdr_unsigned(int, *tl); 2731 if (!more_dirs) 2732 tryformoredirs = 0; 2733 2734 /* loop thru the dir entries, doctoring them to 4bsd form */ 2735 while (more_dirs && bigenough) { 2736 if (nd->nd_flag & ND_NFSV4) { 2737 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2738 ncookie.lval[0] = *tl++; 2739 ncookie.lval[1] = *tl++; 2740 len = fxdr_unsigned(int, *tl); 2741 } else if (nd->nd_flag & ND_NFSV3) { 2742 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2743 nfsva.na_fileid = fxdr_hyper(tl); 2744 tl += 2; 2745 len = fxdr_unsigned(int, *tl); 2746 } else { 2747 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2748 nfsva.na_fileid = 2749 fxdr_unsigned(long, *tl++); 2750 len = fxdr_unsigned(int, *tl); 2751 } 2752 if (len <= 0 || len > NFS_MAXNAMLEN) { 2753 error = EBADRPC; 2754 goto nfsmout; 2755 } 2756 tlen = NFSM_RNDUP(len); 2757 if (tlen == len) 2758 tlen += 4; /* To ensure null termination */ 2759 left = DIRBLKSIZ - blksiz; 2760 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > left) { 2761 dp->d_reclen += left; 2762 uio_iov_base_add(uiop, left); 2763 uio_iov_len_add(uiop, -(left)); 2764 uio_uio_resid_add(uiop, -(left)); 2765 uiop->uio_offset += left; 2766 blksiz = 0; 2767 } 2768 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 2769 bigenough = 0; 2770 if (bigenough) { 2771 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2772 dp->d_namlen = len; 2773 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 2774 dp->d_type = DT_UNKNOWN; 2775 blksiz += dp->d_reclen; 2776 if (blksiz == DIRBLKSIZ) 2777 blksiz = 0; 2778 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 2779 uiop->uio_offset += DIRHDSIZ; 2780 uio_iov_base_add(uiop, DIRHDSIZ); 2781 uio_iov_len_add(uiop, -(DIRHDSIZ)); 2782 error = nfsm_mbufuio(nd, uiop, len); 2783 if (error) 2784 goto nfsmout; 2785 cp = CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2786 tlen -= len; 2787 *cp = '\0'; /* null terminate */ 2788 cp += tlen; /* points to cookie storage */ 2789 tl2 = (u_int32_t *)cp; 2790 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 2791 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 2792 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 2793 uiop->uio_offset += (tlen + NFSX_HYPER); 2794 } else { 2795 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2796 if (error) 2797 goto nfsmout; 2798 } 2799 if (nd->nd_flag & ND_NFSV4) { 2800 rderr = 0; 2801 nfsva.na_mntonfileno = 0xffffffff; 2802 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2803 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2804 NULL, NULL, &rderr, p, cred); 2805 if (error) 2806 goto nfsmout; 2807 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2808 } else if (nd->nd_flag & ND_NFSV3) { 2809 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2810 ncookie.lval[0] = *tl++; 2811 ncookie.lval[1] = *tl++; 2812 } else { 2813 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2814 ncookie.lval[0] = 0; 2815 ncookie.lval[1] = *tl++; 2816 } 2817 if (bigenough) { 2818 if (nd->nd_flag & ND_NFSV4) { 2819 if (rderr) { 2820 dp->d_fileno = 0; 2821 } else { 2822 if (gotmnton) { 2823 if (nfsva.na_mntonfileno != 0xffffffff) 2824 dp->d_fileno = nfsva.na_mntonfileno; 2825 else 2826 dp->d_fileno = nfsva.na_fileid; 2827 } else if (nfsva.na_filesid[0] == 2828 dnp->n_vattr.na_filesid[0] && 2829 nfsva.na_filesid[1] == 2830 dnp->n_vattr.na_filesid[1]) { 2831 dp->d_fileno = nfsva.na_fileid; 2832 } else { 2833 do { 2834 fakefileno--; 2835 } while (fakefileno == 2836 nfsva.na_fileid); 2837 dp->d_fileno = fakefileno; 2838 } 2839 dp->d_type = vtonfs_dtype(nfsva.na_type); 2840 } 2841 } else { 2842 dp->d_fileno = nfsva.na_fileid; 2843 } 2844 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 2845 ncookie.lval[0]; 2846 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 2847 ncookie.lval[1]; 2848 } 2849 more_dirs = fxdr_unsigned(int, *tl); 2850 } 2851 /* 2852 * If at end of rpc data, get the eof boolean 2853 */ 2854 if (!more_dirs) { 2855 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2856 eof = fxdr_unsigned(int, *tl); 2857 if (tryformoredirs) 2858 more_dirs = !eof; 2859 if (nd->nd_flag & ND_NFSV4) { 2860 error = nfscl_postop_attr(nd, nap, attrflagp, 2861 stuff); 2862 if (error) 2863 goto nfsmout; 2864 } 2865 } 2866 mbuf_freem(nd->nd_mrep); 2867 nd->nd_mrep = NULL; 2868 } 2869 /* 2870 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 2871 * by increasing d_reclen for the last record. 2872 */ 2873 if (blksiz > 0) { 2874 left = DIRBLKSIZ - blksiz; 2875 dp->d_reclen += left; 2876 uio_iov_base_add(uiop, left); 2877 uio_iov_len_add(uiop, -(left)); 2878 uio_uio_resid_add(uiop, -(left)); 2879 uiop->uio_offset += left; 2880 } 2881 2882 /* 2883 * If returning no data, assume end of file. 2884 * If not bigenough, return not end of file, since you aren't 2885 * returning all the data 2886 * Otherwise, return the eof flag from the server. 2887 */ 2888 if (eofp) { 2889 if (tresid == ((size_t)(uio_uio_resid(uiop)))) 2890 *eofp = 1; 2891 else if (!bigenough) 2892 *eofp = 0; 2893 else 2894 *eofp = eof; 2895 } 2896 2897 /* 2898 * Add extra empty records to any remaining DIRBLKSIZ chunks. 2899 */ 2900 while (uio_uio_resid(uiop) > 0 && ((size_t)(uio_uio_resid(uiop))) != tresid) { 2901 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2902 dp->d_type = DT_UNKNOWN; 2903 dp->d_fileno = 0; 2904 dp->d_namlen = 0; 2905 dp->d_name[0] = '\0'; 2906 tl = (u_int32_t *)&dp->d_name[4]; 2907 *tl++ = cookie.lval[0]; 2908 *tl = cookie.lval[1]; 2909 dp->d_reclen = DIRBLKSIZ; 2910 uio_iov_base_add(uiop, DIRBLKSIZ); 2911 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 2912 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 2913 uiop->uio_offset += DIRBLKSIZ; 2914 } 2915 2916 nfsmout: 2917 if (nd->nd_mrep != NULL) 2918 mbuf_freem(nd->nd_mrep); 2919 return (error); 2920 } 2921 2922 #ifndef APPLE 2923 /* 2924 * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). 2925 * (Also used for NFS V4 when mount flag set.) 2926 * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) 2927 */ 2928 APPLESTATIC int 2929 nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2930 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2931 int *eofp, void *stuff) 2932 { 2933 int len, left; 2934 struct dirent *dp = NULL; 2935 u_int32_t *tl; 2936 vnode_t newvp = NULLVP; 2937 struct nfsrv_descript nfsd, *nd = &nfsd; 2938 struct nameidata nami, *ndp = &nami; 2939 struct componentname *cnp = &ndp->ni_cnd; 2940 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2941 struct nfsnode *dnp = VTONFS(vp), *np; 2942 struct nfsvattr nfsva; 2943 struct nfsfh *nfhp; 2944 nfsquad_t cookie, ncookie; 2945 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2946 int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; 2947 int isdotdot = 0, unlocknewvp = 0; 2948 long dotfileid, dotdotfileid = 0, fileno = 0; 2949 char *cp; 2950 nfsattrbit_t attrbits, dattrbits; 2951 size_t tresid; 2952 u_int32_t *tl2 = NULL, fakefileno = 0xffffffff, rderr; 2953 2954 KASSERT(uiop->uio_iovcnt == 1 && 2955 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2956 ("nfs readdirplusrpc bad uio")); 2957 *attrflagp = 0; 2958 if (eofp != NULL) 2959 *eofp = 0; 2960 ndp->ni_dvp = vp; 2961 nd->nd_mrep = NULL; 2962 cookie.lval[0] = cookiep->nfsuquad[0]; 2963 cookie.lval[1] = cookiep->nfsuquad[1]; 2964 tresid = uio_uio_resid(uiop); 2965 2966 /* 2967 * For NFSv4, first create the "." and ".." entries. 2968 */ 2969 if (NFSHASNFSV4(nmp)) { 2970 NFSGETATTR_ATTRBIT(&dattrbits); 2971 NFSZERO_ATTRBIT(&attrbits); 2972 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2973 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2974 NFSATTRBIT_MOUNTEDONFILEID)) { 2975 NFSSETBIT_ATTRBIT(&attrbits, 2976 NFSATTRBIT_MOUNTEDONFILEID); 2977 gotmnton = 1; 2978 } else { 2979 /* 2980 * Must fake it. Use the fileno, except when the 2981 * fsid is != to that of the directory. For that 2982 * case, generate a fake fileno that is not the same. 2983 */ 2984 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2985 gotmnton = 0; 2986 } 2987 2988 /* 2989 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2990 */ 2991 if (uiop->uio_offset == 0) { 2992 #if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2993 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2994 #else 2995 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2996 #endif 2997 if (error) 2998 return (error); 2999 dotfileid = nfsva.na_fileid; 3000 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 3001 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3002 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 3003 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3004 (void) nfsrv_putattrbit(nd, &attrbits); 3005 error = nfscl_request(nd, vp, p, cred, stuff); 3006 if (error) 3007 return (error); 3008 if (nd->nd_repstat == 0) { 3009 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3010 len = fxdr_unsigned(int, *(tl + 2)); 3011 if (len > 0 && len <= NFSX_V4FHMAX) 3012 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3013 else 3014 error = EPERM; 3015 if (!error) { 3016 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 3017 nfsva.na_mntonfileno = 0xffffffff; 3018 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 3019 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3020 NULL, NULL, NULL, p, cred); 3021 if (error) { 3022 dotdotfileid = dotfileid; 3023 } else if (gotmnton) { 3024 if (nfsva.na_mntonfileno != 0xffffffff) 3025 dotdotfileid = nfsva.na_mntonfileno; 3026 else 3027 dotdotfileid = nfsva.na_fileid; 3028 } else if (nfsva.na_filesid[0] == 3029 dnp->n_vattr.na_filesid[0] && 3030 nfsva.na_filesid[1] == 3031 dnp->n_vattr.na_filesid[1]) { 3032 dotdotfileid = nfsva.na_fileid; 3033 } else { 3034 do { 3035 fakefileno--; 3036 } while (fakefileno == 3037 nfsva.na_fileid); 3038 dotdotfileid = fakefileno; 3039 } 3040 } 3041 } else if (nd->nd_repstat == NFSERR_NOENT) { 3042 /* 3043 * Lookupp returns NFSERR_NOENT when we are 3044 * at the root, so just use the current dir. 3045 */ 3046 nd->nd_repstat = 0; 3047 dotdotfileid = dotfileid; 3048 } else { 3049 error = nd->nd_repstat; 3050 } 3051 mbuf_freem(nd->nd_mrep); 3052 if (error) 3053 return (error); 3054 nd->nd_mrep = NULL; 3055 dp = (struct dirent *)uio_iov_base(uiop); 3056 dp->d_type = DT_DIR; 3057 dp->d_fileno = dotfileid; 3058 dp->d_namlen = 1; 3059 dp->d_name[0] = '.'; 3060 dp->d_name[1] = '\0'; 3061 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3062 /* 3063 * Just make these offset cookie 0. 3064 */ 3065 tl = (u_int32_t *)&dp->d_name[4]; 3066 *tl++ = 0; 3067 *tl = 0; 3068 blksiz += dp->d_reclen; 3069 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3070 uiop->uio_offset += dp->d_reclen; 3071 uio_iov_base_add(uiop, dp->d_reclen); 3072 uio_iov_len_add(uiop, -(dp->d_reclen)); 3073 dp = (struct dirent *)uio_iov_base(uiop); 3074 dp->d_type = DT_DIR; 3075 dp->d_fileno = dotdotfileid; 3076 dp->d_namlen = 2; 3077 dp->d_name[0] = '.'; 3078 dp->d_name[1] = '.'; 3079 dp->d_name[2] = '\0'; 3080 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3081 /* 3082 * Just make these offset cookie 0. 3083 */ 3084 tl = (u_int32_t *)&dp->d_name[4]; 3085 *tl++ = 0; 3086 *tl = 0; 3087 blksiz += dp->d_reclen; 3088 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3089 uiop->uio_offset += dp->d_reclen; 3090 uio_iov_base_add(uiop, dp->d_reclen); 3091 uio_iov_len_add(uiop, -(dp->d_reclen)); 3092 } 3093 NFSREADDIRPLUS_ATTRBIT(&attrbits); 3094 if (gotmnton) 3095 NFSSETBIT_ATTRBIT(&attrbits, 3096 NFSATTRBIT_MOUNTEDONFILEID); 3097 } 3098 3099 /* 3100 * Loop around doing readdir rpc's of size nm_readdirsize. 3101 * The stopping criteria is EOF or buffer full. 3102 */ 3103 while (more_dirs && bigenough) { 3104 *attrflagp = 0; 3105 NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); 3106 NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 3107 *tl++ = cookie.lval[0]; 3108 *tl++ = cookie.lval[1]; 3109 if (cookie.qval == 0) { 3110 *tl++ = 0; 3111 *tl++ = 0; 3112 } else { 3113 NFSLOCKNODE(dnp); 3114 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 3115 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 3116 NFSUNLOCKNODE(dnp); 3117 } 3118 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 3119 *tl = txdr_unsigned(nmp->nm_readdirsize); 3120 if (nd->nd_flag & ND_NFSV4) { 3121 (void) nfsrv_putattrbit(nd, &attrbits); 3122 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3123 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3124 (void) nfsrv_putattrbit(nd, &dattrbits); 3125 } 3126 error = nfscl_request(nd, vp, p, cred, stuff); 3127 if (error) 3128 return (error); 3129 if (nd->nd_flag & ND_NFSV3) 3130 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3131 if (nd->nd_repstat || error) { 3132 if (!error) 3133 error = nd->nd_repstat; 3134 goto nfsmout; 3135 } 3136 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3137 NFSLOCKNODE(dnp); 3138 dnp->n_cookieverf.nfsuquad[0] = *tl++; 3139 dnp->n_cookieverf.nfsuquad[1] = *tl++; 3140 NFSUNLOCKNODE(dnp); 3141 more_dirs = fxdr_unsigned(int, *tl); 3142 if (!more_dirs) 3143 tryformoredirs = 0; 3144 3145 /* loop thru the dir entries, doctoring them to 4bsd form */ 3146 while (more_dirs && bigenough) { 3147 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3148 if (nd->nd_flag & ND_NFSV4) { 3149 ncookie.lval[0] = *tl++; 3150 ncookie.lval[1] = *tl++; 3151 } else { 3152 fileno = fxdr_unsigned(long, *++tl); 3153 tl++; 3154 } 3155 len = fxdr_unsigned(int, *tl); 3156 if (len <= 0 || len > NFS_MAXNAMLEN) { 3157 error = EBADRPC; 3158 goto nfsmout; 3159 } 3160 tlen = NFSM_RNDUP(len); 3161 if (tlen == len) 3162 tlen += 4; /* To ensure null termination */ 3163 left = DIRBLKSIZ - blksiz; 3164 if ((tlen + DIRHDSIZ + NFSX_HYPER) > left) { 3165 dp->d_reclen += left; 3166 uio_iov_base_add(uiop, left); 3167 uio_iov_len_add(uiop, -(left)); 3168 uio_uio_resid_add(uiop, -(left)); 3169 uiop->uio_offset += left; 3170 blksiz = 0; 3171 } 3172 if ((tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 3173 bigenough = 0; 3174 if (bigenough) { 3175 dp = (struct dirent *)uio_iov_base(uiop); 3176 dp->d_namlen = len; 3177 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 3178 dp->d_type = DT_UNKNOWN; 3179 blksiz += dp->d_reclen; 3180 if (blksiz == DIRBLKSIZ) 3181 blksiz = 0; 3182 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 3183 uiop->uio_offset += DIRHDSIZ; 3184 uio_iov_base_add(uiop, DIRHDSIZ); 3185 uio_iov_len_add(uiop, -(DIRHDSIZ)); 3186 cnp->cn_nameptr = uio_iov_base(uiop); 3187 cnp->cn_namelen = len; 3188 NFSCNHASHZERO(cnp); 3189 error = nfsm_mbufuio(nd, uiop, len); 3190 if (error) 3191 goto nfsmout; 3192 cp = uio_iov_base(uiop); 3193 tlen -= len; 3194 *cp = '\0'; 3195 cp += tlen; /* points to cookie storage */ 3196 tl2 = (u_int32_t *)cp; 3197 if (len == 2 && cnp->cn_nameptr[0] == '.' && 3198 cnp->cn_nameptr[1] == '.') 3199 isdotdot = 1; 3200 else 3201 isdotdot = 0; 3202 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 3203 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 3204 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 3205 uiop->uio_offset += (tlen + NFSX_HYPER); 3206 } else { 3207 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3208 if (error) 3209 goto nfsmout; 3210 } 3211 nfhp = NULL; 3212 if (nd->nd_flag & ND_NFSV3) { 3213 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3214 ncookie.lval[0] = *tl++; 3215 ncookie.lval[1] = *tl++; 3216 attrflag = fxdr_unsigned(int, *tl); 3217 if (attrflag) { 3218 error = nfsm_loadattr(nd, &nfsva); 3219 if (error) 3220 goto nfsmout; 3221 } 3222 NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); 3223 if (*tl) { 3224 error = nfsm_getfh(nd, &nfhp); 3225 if (error) 3226 goto nfsmout; 3227 } 3228 if (!attrflag && nfhp != NULL) { 3229 FREE((caddr_t)nfhp, M_NFSFH); 3230 nfhp = NULL; 3231 } 3232 } else { 3233 rderr = 0; 3234 nfsva.na_mntonfileno = 0xffffffff; 3235 error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, 3236 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3237 NULL, NULL, &rderr, p, cred); 3238 if (error) 3239 goto nfsmout; 3240 } 3241 3242 if (bigenough) { 3243 if (nd->nd_flag & ND_NFSV4) { 3244 if (rderr) { 3245 dp->d_fileno = 0; 3246 } else if (gotmnton) { 3247 if (nfsva.na_mntonfileno != 0xffffffff) 3248 dp->d_fileno = nfsva.na_mntonfileno; 3249 else 3250 dp->d_fileno = nfsva.na_fileid; 3251 } else if (nfsva.na_filesid[0] == 3252 dnp->n_vattr.na_filesid[0] && 3253 nfsva.na_filesid[1] == 3254 dnp->n_vattr.na_filesid[1]) { 3255 dp->d_fileno = nfsva.na_fileid; 3256 } else { 3257 do { 3258 fakefileno--; 3259 } while (fakefileno == 3260 nfsva.na_fileid); 3261 dp->d_fileno = fakefileno; 3262 } 3263 } else { 3264 dp->d_fileno = fileno; 3265 } 3266 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 3267 ncookie.lval[0]; 3268 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 3269 ncookie.lval[1]; 3270 3271 if (nfhp != NULL) { 3272 if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, 3273 dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { 3274 VREF(vp); 3275 newvp = vp; 3276 unlocknewvp = 0; 3277 FREE((caddr_t)nfhp, M_NFSFH); 3278 np = dnp; 3279 } else if (isdotdot != 0) { 3280 /* 3281 * Skip doing a nfscl_nget() call for "..". 3282 * There's a race between acquiring the nfs 3283 * node here and lookups that look for the 3284 * directory being read (in the parent). 3285 * It would try to get a lock on ".." here, 3286 * owning the lock on the directory being 3287 * read. Lookup will hold the lock on ".." 3288 * and try to acquire the lock on the 3289 * directory being read. 3290 * If the directory is unlocked/relocked, 3291 * then there is a LOR with the buflock 3292 * vp is relocked. 3293 */ 3294 free(nfhp, M_NFSFH); 3295 } else { 3296 error = nfscl_nget(vnode_mount(vp), vp, 3297 nfhp, cnp, p, &np, NULL, LK_EXCLUSIVE); 3298 if (!error) { 3299 newvp = NFSTOV(np); 3300 unlocknewvp = 1; 3301 } 3302 } 3303 nfhp = NULL; 3304 if (newvp != NULLVP) { 3305 error = nfscl_loadattrcache(&newvp, 3306 &nfsva, NULL, NULL, 0, 0); 3307 if (error) { 3308 if (unlocknewvp) 3309 vput(newvp); 3310 else 3311 vrele(newvp); 3312 goto nfsmout; 3313 } 3314 dp->d_type = 3315 vtonfs_dtype(np->n_vattr.na_type); 3316 ndp->ni_vp = newvp; 3317 NFSCNHASH(cnp, HASHINIT); 3318 if (cnp->cn_namelen <= NCHNAMLEN) { 3319 np->n_ctime = np->n_vattr.na_ctime; 3320 cache_enter(ndp->ni_dvp,ndp->ni_vp,cnp); 3321 } 3322 if (unlocknewvp) 3323 vput(newvp); 3324 else 3325 vrele(newvp); 3326 newvp = NULLVP; 3327 } 3328 } 3329 } else if (nfhp != NULL) { 3330 FREE((caddr_t)nfhp, M_NFSFH); 3331 } 3332 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3333 more_dirs = fxdr_unsigned(int, *tl); 3334 } 3335 /* 3336 * If at end of rpc data, get the eof boolean 3337 */ 3338 if (!more_dirs) { 3339 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3340 eof = fxdr_unsigned(int, *tl); 3341 if (tryformoredirs) 3342 more_dirs = !eof; 3343 if (nd->nd_flag & ND_NFSV4) { 3344 error = nfscl_postop_attr(nd, nap, attrflagp, 3345 stuff); 3346 if (error) 3347 goto nfsmout; 3348 } 3349 } 3350 mbuf_freem(nd->nd_mrep); 3351 nd->nd_mrep = NULL; 3352 } 3353 /* 3354 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 3355 * by increasing d_reclen for the last record. 3356 */ 3357 if (blksiz > 0) { 3358 left = DIRBLKSIZ - blksiz; 3359 dp->d_reclen += left; 3360 uio_iov_base_add(uiop, left); 3361 uio_iov_len_add(uiop, -(left)); 3362 uio_uio_resid_add(uiop, -(left)); 3363 uiop->uio_offset += left; 3364 } 3365 3366 /* 3367 * If returning no data, assume end of file. 3368 * If not bigenough, return not end of file, since you aren't 3369 * returning all the data 3370 * Otherwise, return the eof flag from the server. 3371 */ 3372 if (eofp != NULL) { 3373 if (tresid == uio_uio_resid(uiop)) 3374 *eofp = 1; 3375 else if (!bigenough) 3376 *eofp = 0; 3377 else 3378 *eofp = eof; 3379 } 3380 3381 /* 3382 * Add extra empty records to any remaining DIRBLKSIZ chunks. 3383 */ 3384 while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { 3385 dp = (struct dirent *)uio_iov_base(uiop); 3386 dp->d_type = DT_UNKNOWN; 3387 dp->d_fileno = 0; 3388 dp->d_namlen = 0; 3389 dp->d_name[0] = '\0'; 3390 tl = (u_int32_t *)&dp->d_name[4]; 3391 *tl++ = cookie.lval[0]; 3392 *tl = cookie.lval[1]; 3393 dp->d_reclen = DIRBLKSIZ; 3394 uio_iov_base_add(uiop, DIRBLKSIZ); 3395 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 3396 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 3397 uiop->uio_offset += DIRBLKSIZ; 3398 } 3399 3400 nfsmout: 3401 if (nd->nd_mrep != NULL) 3402 mbuf_freem(nd->nd_mrep); 3403 return (error); 3404 } 3405 #endif /* !APPLE */ 3406 3407 /* 3408 * Nfs commit rpc 3409 */ 3410 APPLESTATIC int 3411 nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, 3412 NFSPROC_T *p, u_char *verfp, struct nfsvattr *nap, int *attrflagp, 3413 void *stuff) 3414 { 3415 u_int32_t *tl; 3416 struct nfsrv_descript nfsd, *nd = &nfsd; 3417 nfsattrbit_t attrbits; 3418 int error; 3419 3420 *attrflagp = 0; 3421 NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); 3422 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3423 txdr_hyper(offset, tl); 3424 tl += 2; 3425 *tl = txdr_unsigned(cnt); 3426 if (nd->nd_flag & ND_NFSV4) { 3427 /* 3428 * And do a Getattr op. 3429 */ 3430 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3431 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3432 NFSGETATTR_ATTRBIT(&attrbits); 3433 (void) nfsrv_putattrbit(nd, &attrbits); 3434 } 3435 error = nfscl_request(nd, vp, p, cred, stuff); 3436 if (error) 3437 return (error); 3438 error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); 3439 if (!error && !nd->nd_repstat) { 3440 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3441 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 3442 if (nd->nd_flag & ND_NFSV4) 3443 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3444 } 3445 nfsmout: 3446 if (!error && nd->nd_repstat) 3447 error = nd->nd_repstat; 3448 mbuf_freem(nd->nd_mrep); 3449 return (error); 3450 } 3451 3452 /* 3453 * NFS byte range lock rpc. 3454 * (Mostly just calls one of the three lower level RPC routines.) 3455 */ 3456 APPLESTATIC int 3457 nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, 3458 int reclaim, struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3459 { 3460 struct nfscllockowner *lp; 3461 struct nfsclclient *clp; 3462 struct nfsfh *nfhp; 3463 struct nfsrv_descript nfsd, *nd = &nfsd; 3464 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 3465 u_int64_t off, len; 3466 off_t start, end; 3467 u_int32_t clidrev = 0; 3468 int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; 3469 int callcnt, dorpc; 3470 3471 /* 3472 * Convert the flock structure into a start and end and do POSIX 3473 * bounds checking. 3474 */ 3475 switch (fl->l_whence) { 3476 case SEEK_SET: 3477 case SEEK_CUR: 3478 /* 3479 * Caller is responsible for adding any necessary offset 3480 * when SEEK_CUR is used. 3481 */ 3482 start = fl->l_start; 3483 off = fl->l_start; 3484 break; 3485 case SEEK_END: 3486 start = size + fl->l_start; 3487 off = size + fl->l_start; 3488 break; 3489 default: 3490 return (EINVAL); 3491 }; 3492 if (start < 0) 3493 return (EINVAL); 3494 if (fl->l_len != 0) { 3495 end = start + fl->l_len - 1; 3496 if (end < start) 3497 return (EINVAL); 3498 } 3499 3500 len = fl->l_len; 3501 if (len == 0) 3502 len = NFS64BITSSET; 3503 retrycnt = 0; 3504 do { 3505 nd->nd_repstat = 0; 3506 if (op == F_GETLK) { 3507 error = nfscl_getcl(vp, cred, p, &clp); 3508 if (error) 3509 return (error); 3510 error = nfscl_lockt(vp, clp, off, len, fl, p, id, flags); 3511 if (!error) { 3512 clidrev = clp->nfsc_clientidrev; 3513 error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, 3514 p, id, flags); 3515 } else if (error == -1) { 3516 error = 0; 3517 } 3518 nfscl_clientrelease(clp); 3519 } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { 3520 /* 3521 * We must loop around for all lockowner cases. 3522 */ 3523 callcnt = 0; 3524 error = nfscl_getcl(vp, cred, p, &clp); 3525 if (error) 3526 return (error); 3527 do { 3528 error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, 3529 clp, id, flags, &lp, &dorpc); 3530 /* 3531 * If it returns a NULL lp, we're done. 3532 */ 3533 if (lp == NULL) { 3534 if (callcnt == 0) 3535 nfscl_clientrelease(clp); 3536 else 3537 nfscl_releasealllocks(clp, vp, p, id, flags); 3538 return (error); 3539 } 3540 if (nmp->nm_clp != NULL) 3541 clidrev = nmp->nm_clp->nfsc_clientidrev; 3542 else 3543 clidrev = 0; 3544 /* 3545 * If the server doesn't support Posix lock semantics, 3546 * only allow locks on the entire file, since it won't 3547 * handle overlapping byte ranges. 3548 * There might still be a problem when a lock 3549 * upgrade/downgrade (read<->write) occurs, since the 3550 * server "might" expect an unlock first? 3551 */ 3552 if (dorpc && (lp->nfsl_open->nfso_posixlock || 3553 (off == 0 && len == NFS64BITSSET))) { 3554 /* 3555 * Since the lock records will go away, we must 3556 * wait for grace and delay here. 3557 */ 3558 do { 3559 error = nfsrpc_locku(nd, nmp, lp, off, len, 3560 NFSV4LOCKT_READ, cred, p, 0); 3561 if ((nd->nd_repstat == NFSERR_GRACE || 3562 nd->nd_repstat == NFSERR_DELAY) && 3563 error == 0) 3564 (void) nfs_catnap(PZERO, (int)nd->nd_repstat, 3565 "nfs_advlock"); 3566 } while ((nd->nd_repstat == NFSERR_GRACE || 3567 nd->nd_repstat == NFSERR_DELAY) && error == 0); 3568 } 3569 callcnt++; 3570 } while (error == 0 && nd->nd_repstat == 0); 3571 nfscl_releasealllocks(clp, vp, p, id, flags); 3572 } else if (op == F_SETLK) { 3573 error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, 3574 NULL, 0, id, flags, NULL, NULL, &lp, &newone, &donelocally); 3575 if (error || donelocally) { 3576 return (error); 3577 } 3578 if (nmp->nm_clp != NULL) 3579 clidrev = nmp->nm_clp->nfsc_clientidrev; 3580 else 3581 clidrev = 0; 3582 nfhp = VTONFS(vp)->n_fhp; 3583 if (!lp->nfsl_open->nfso_posixlock && 3584 (off != 0 || len != NFS64BITSSET)) { 3585 error = EINVAL; 3586 } else { 3587 error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, 3588 nfhp->nfh_len, lp, newone, reclaim, off, 3589 len, fl->l_type, cred, p, 0); 3590 } 3591 if (!error) 3592 error = nd->nd_repstat; 3593 nfscl_lockrelease(lp, error, newone); 3594 } else { 3595 error = EINVAL; 3596 } 3597 if (!error) 3598 error = nd->nd_repstat; 3599 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 3600 error == NFSERR_STALEDONTRECOVER || 3601 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY) { 3602 (void) nfs_catnap(PZERO, error, "nfs_advlock"); 3603 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 3604 && clidrev != 0) { 3605 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 3606 retrycnt++; 3607 } 3608 } while (error == NFSERR_GRACE || 3609 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || 3610 error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || 3611 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 3612 expireret == 0 && clidrev != 0 && retrycnt < 4)); 3613 if (error && retrycnt >= 4) 3614 error = EIO; 3615 return (error); 3616 } 3617 3618 /* 3619 * The lower level routine for the LockT case. 3620 */ 3621 APPLESTATIC int 3622 nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, 3623 struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, 3624 struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3625 { 3626 u_int32_t *tl; 3627 int error, type, size; 3628 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 3629 struct nfsnode *np; 3630 3631 NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); 3632 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3633 if (fl->l_type == F_RDLCK) 3634 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3635 else 3636 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3637 txdr_hyper(off, tl); 3638 tl += 2; 3639 txdr_hyper(len, tl); 3640 tl += 2; 3641 *tl++ = clp->nfsc_clientid.lval[0]; 3642 *tl = clp->nfsc_clientid.lval[1]; 3643 nfscl_filllockowner(id, own, flags); 3644 np = VTONFS(vp); 3645 NFSBCOPY(np->n_fhp->nfh_fh, &own[NFSV4CL_LOCKNAMELEN], 3646 np->n_fhp->nfh_len); 3647 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + np->n_fhp->nfh_len); 3648 error = nfscl_request(nd, vp, p, cred, NULL); 3649 if (error) 3650 return (error); 3651 if (nd->nd_repstat == 0) { 3652 fl->l_type = F_UNLCK; 3653 } else if (nd->nd_repstat == NFSERR_DENIED) { 3654 nd->nd_repstat = 0; 3655 fl->l_whence = SEEK_SET; 3656 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3657 fl->l_start = fxdr_hyper(tl); 3658 tl += 2; 3659 len = fxdr_hyper(tl); 3660 tl += 2; 3661 if (len == NFS64BITSSET) 3662 fl->l_len = 0; 3663 else 3664 fl->l_len = len; 3665 type = fxdr_unsigned(int, *tl++); 3666 if (type == NFSV4LOCKT_WRITE) 3667 fl->l_type = F_WRLCK; 3668 else 3669 fl->l_type = F_RDLCK; 3670 /* 3671 * XXX For now, I have no idea what to do with the 3672 * conflicting lock_owner, so I'll just set the pid == 0 3673 * and skip over the lock_owner. 3674 */ 3675 fl->l_pid = (pid_t)0; 3676 tl += 2; 3677 size = fxdr_unsigned(int, *tl); 3678 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3679 error = EBADRPC; 3680 if (!error) 3681 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3682 } else if (nd->nd_repstat == NFSERR_STALECLIENTID) 3683 nfscl_initiate_recovery(clp); 3684 nfsmout: 3685 mbuf_freem(nd->nd_mrep); 3686 return (error); 3687 } 3688 3689 /* 3690 * Lower level function that performs the LockU RPC. 3691 */ 3692 static int 3693 nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, 3694 struct nfscllockowner *lp, u_int64_t off, u_int64_t len, 3695 u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) 3696 { 3697 u_int32_t *tl; 3698 int error; 3699 3700 nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, 3701 lp->nfsl_open->nfso_fhlen, NULL); 3702 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3703 *tl++ = txdr_unsigned(type); 3704 *tl = txdr_unsigned(lp->nfsl_seqid); 3705 if (nfstest_outofseq && 3706 (arc4random() % nfstest_outofseq) == 0) 3707 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3708 tl++; 3709 *tl++ = lp->nfsl_stateid.seqid; 3710 *tl++ = lp->nfsl_stateid.other[0]; 3711 *tl++ = lp->nfsl_stateid.other[1]; 3712 *tl++ = lp->nfsl_stateid.other[2]; 3713 txdr_hyper(off, tl); 3714 tl += 2; 3715 txdr_hyper(len, tl); 3716 if (syscred) 3717 nd->nd_flag |= ND_USEGSSNAME; 3718 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3719 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3720 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3721 if (error) 3722 return (error); 3723 if (nd->nd_repstat == 0) { 3724 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3725 lp->nfsl_stateid.seqid = *tl++; 3726 lp->nfsl_stateid.other[0] = *tl++; 3727 lp->nfsl_stateid.other[1] = *tl++; 3728 lp->nfsl_stateid.other[2] = *tl; 3729 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3730 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3731 nfsmout: 3732 mbuf_freem(nd->nd_mrep); 3733 return (error); 3734 } 3735 3736 /* 3737 * The actual Lock RPC. 3738 */ 3739 APPLESTATIC int 3740 nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, 3741 u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, 3742 int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, 3743 NFSPROC_T *p, int syscred) 3744 { 3745 u_int32_t *tl; 3746 int error, size; 3747 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 3748 3749 nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL); 3750 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3751 if (type == F_RDLCK) 3752 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3753 else 3754 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3755 *tl++ = txdr_unsigned(reclaim); 3756 txdr_hyper(off, tl); 3757 tl += 2; 3758 txdr_hyper(len, tl); 3759 tl += 2; 3760 if (newone) { 3761 *tl = newnfs_true; 3762 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3763 2 * NFSX_UNSIGNED + NFSX_HYPER); 3764 *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); 3765 *tl++ = lp->nfsl_open->nfso_stateid.seqid; 3766 *tl++ = lp->nfsl_open->nfso_stateid.other[0]; 3767 *tl++ = lp->nfsl_open->nfso_stateid.other[1]; 3768 *tl++ = lp->nfsl_open->nfso_stateid.other[2]; 3769 *tl++ = txdr_unsigned(lp->nfsl_seqid); 3770 *tl++ = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 3771 *tl = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 3772 NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); 3773 NFSBCOPY(nfhp, &own[NFSV4CL_LOCKNAMELEN], fhlen); 3774 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); 3775 } else { 3776 *tl = newnfs_false; 3777 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3778 *tl++ = lp->nfsl_stateid.seqid; 3779 *tl++ = lp->nfsl_stateid.other[0]; 3780 *tl++ = lp->nfsl_stateid.other[1]; 3781 *tl++ = lp->nfsl_stateid.other[2]; 3782 *tl = txdr_unsigned(lp->nfsl_seqid); 3783 if (nfstest_outofseq && 3784 (arc4random() % nfstest_outofseq) == 0) 3785 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3786 } 3787 if (syscred) 3788 nd->nd_flag |= ND_USEGSSNAME; 3789 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 3790 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3791 if (error) 3792 return (error); 3793 if (newone) 3794 NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); 3795 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3796 if (nd->nd_repstat == 0) { 3797 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3798 lp->nfsl_stateid.seqid = *tl++; 3799 lp->nfsl_stateid.other[0] = *tl++; 3800 lp->nfsl_stateid.other[1] = *tl++; 3801 lp->nfsl_stateid.other[2] = *tl; 3802 } else if (nd->nd_repstat == NFSERR_DENIED) { 3803 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3804 size = fxdr_unsigned(int, *(tl + 7)); 3805 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3806 error = EBADRPC; 3807 if (!error) 3808 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3809 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3810 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3811 nfsmout: 3812 mbuf_freem(nd->nd_mrep); 3813 return (error); 3814 } 3815 3816 /* 3817 * nfs statfs rpc 3818 * (always called with the vp for the mount point) 3819 */ 3820 APPLESTATIC int 3821 nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, 3822 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3823 void *stuff) 3824 { 3825 u_int32_t *tl = NULL; 3826 struct nfsrv_descript nfsd, *nd = &nfsd; 3827 struct nfsmount *nmp; 3828 nfsattrbit_t attrbits; 3829 int error; 3830 3831 *attrflagp = 0; 3832 nmp = VFSTONFS(vnode_mount(vp)); 3833 if (NFSHASNFSV4(nmp)) { 3834 /* 3835 * For V4, you actually do a getattr. 3836 */ 3837 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3838 NFSSTATFS_GETATTRBIT(&attrbits); 3839 (void) nfsrv_putattrbit(nd, &attrbits); 3840 nd->nd_flag |= ND_USEGSSNAME; 3841 error = nfscl_request(nd, vp, p, cred, stuff); 3842 if (error) 3843 return (error); 3844 if (nd->nd_repstat == 0) { 3845 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3846 NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, 3847 cred); 3848 if (!error) { 3849 nmp->nm_fsid[0] = nap->na_filesid[0]; 3850 nmp->nm_fsid[1] = nap->na_filesid[1]; 3851 NFSSETHASSETFSID(nmp); 3852 *attrflagp = 1; 3853 } 3854 } else { 3855 error = nd->nd_repstat; 3856 } 3857 if (error) 3858 goto nfsmout; 3859 } else { 3860 NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); 3861 error = nfscl_request(nd, vp, p, cred, stuff); 3862 if (error) 3863 return (error); 3864 if (nd->nd_flag & ND_NFSV3) { 3865 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3866 if (error) 3867 goto nfsmout; 3868 } 3869 if (nd->nd_repstat) { 3870 error = nd->nd_repstat; 3871 goto nfsmout; 3872 } 3873 NFSM_DISSECT(tl, u_int32_t *, 3874 NFSX_STATFS(nd->nd_flag & ND_NFSV3)); 3875 } 3876 if (NFSHASNFSV3(nmp)) { 3877 sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; 3878 sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; 3879 sbp->sf_abytes = fxdr_hyper(tl); tl += 2; 3880 sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; 3881 sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; 3882 sbp->sf_afiles = fxdr_hyper(tl); tl += 2; 3883 sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); 3884 } else if (NFSHASNFSV4(nmp) == 0) { 3885 sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); 3886 sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); 3887 sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); 3888 sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); 3889 sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); 3890 } 3891 nfsmout: 3892 mbuf_freem(nd->nd_mrep); 3893 return (error); 3894 } 3895 3896 /* 3897 * nfs pathconf rpc 3898 */ 3899 APPLESTATIC int 3900 nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, 3901 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3902 void *stuff) 3903 { 3904 struct nfsrv_descript nfsd, *nd = &nfsd; 3905 struct nfsmount *nmp; 3906 u_int32_t *tl; 3907 nfsattrbit_t attrbits; 3908 int error; 3909 3910 *attrflagp = 0; 3911 nmp = VFSTONFS(vnode_mount(vp)); 3912 if (NFSHASNFSV4(nmp)) { 3913 /* 3914 * For V4, you actually do a getattr. 3915 */ 3916 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3917 NFSPATHCONF_GETATTRBIT(&attrbits); 3918 (void) nfsrv_putattrbit(nd, &attrbits); 3919 nd->nd_flag |= ND_USEGSSNAME; 3920 error = nfscl_request(nd, vp, p, cred, stuff); 3921 if (error) 3922 return (error); 3923 if (nd->nd_repstat == 0) { 3924 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3925 pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, 3926 cred); 3927 if (!error) 3928 *attrflagp = 1; 3929 } else { 3930 error = nd->nd_repstat; 3931 } 3932 } else { 3933 NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp); 3934 error = nfscl_request(nd, vp, p, cred, stuff); 3935 if (error) 3936 return (error); 3937 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3938 if (nd->nd_repstat && !error) 3939 error = nd->nd_repstat; 3940 if (!error) { 3941 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF); 3942 pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); 3943 pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); 3944 pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); 3945 pc->pc_chownrestricted = 3946 fxdr_unsigned(u_int32_t, *tl++); 3947 pc->pc_caseinsensitive = 3948 fxdr_unsigned(u_int32_t, *tl++); 3949 pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); 3950 } 3951 } 3952 nfsmout: 3953 mbuf_freem(nd->nd_mrep); 3954 return (error); 3955 } 3956 3957 /* 3958 * nfs version 3 fsinfo rpc call 3959 */ 3960 APPLESTATIC int 3961 nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, 3962 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 3963 { 3964 u_int32_t *tl; 3965 struct nfsrv_descript nfsd, *nd = &nfsd; 3966 int error; 3967 3968 *attrflagp = 0; 3969 NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); 3970 error = nfscl_request(nd, vp, p, cred, stuff); 3971 if (error) 3972 return (error); 3973 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3974 if (nd->nd_repstat && !error) 3975 error = nd->nd_repstat; 3976 if (!error) { 3977 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); 3978 fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); 3979 fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); 3980 fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); 3981 fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); 3982 fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); 3983 fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); 3984 fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); 3985 fsp->fs_maxfilesize = fxdr_hyper(tl); 3986 tl += 2; 3987 fxdr_nfsv3time(tl, &fsp->fs_timedelta); 3988 tl += 2; 3989 fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); 3990 } 3991 nfsmout: 3992 mbuf_freem(nd->nd_mrep); 3993 return (error); 3994 } 3995 3996 /* 3997 * This function performs the Renew RPC. 3998 */ 3999 APPLESTATIC int 4000 nfsrpc_renew(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p) 4001 { 4002 u_int32_t *tl; 4003 struct nfsrv_descript nfsd; 4004 struct nfsrv_descript *nd = &nfsd; 4005 struct nfsmount *nmp; 4006 int error; 4007 4008 nmp = clp->nfsc_nmp; 4009 if (nmp == NULL) 4010 return (0); 4011 nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL); 4012 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4013 *tl++ = clp->nfsc_clientid.lval[0]; 4014 *tl = clp->nfsc_clientid.lval[1]; 4015 nd->nd_flag |= ND_USEGSSNAME; 4016 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4017 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4018 if (error) 4019 return (error); 4020 error = nd->nd_repstat; 4021 mbuf_freem(nd->nd_mrep); 4022 return (error); 4023 } 4024 4025 /* 4026 * This function performs the Releaselockowner RPC. 4027 */ 4028 APPLESTATIC int 4029 nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, 4030 struct ucred *cred, NFSPROC_T *p) 4031 { 4032 struct nfsrv_descript nfsd, *nd = &nfsd; 4033 u_int32_t *tl; 4034 int error; 4035 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 4036 4037 nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL); 4038 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4039 *tl++ = nmp->nm_clp->nfsc_clientid.lval[0]; 4040 *tl = nmp->nm_clp->nfsc_clientid.lval[1]; 4041 NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); 4042 NFSBCOPY(lp->nfsl_open->nfso_fh, &own[NFSV4CL_LOCKNAMELEN], 4043 lp->nfsl_open->nfso_fhlen); 4044 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + 4045 lp->nfsl_open->nfso_fhlen); 4046 nd->nd_flag |= ND_USEGSSNAME; 4047 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4048 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4049 if (error) 4050 return (error); 4051 error = nd->nd_repstat; 4052 mbuf_freem(nd->nd_mrep); 4053 return (error); 4054 } 4055 4056 /* 4057 * This function performs the Compound to get the mount pt FH. 4058 */ 4059 APPLESTATIC int 4060 nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, 4061 NFSPROC_T *p) 4062 { 4063 u_int32_t *tl; 4064 struct nfsrv_descript nfsd; 4065 struct nfsrv_descript *nd = &nfsd; 4066 u_char *cp, *cp2; 4067 int error, cnt, len, setnil; 4068 u_int32_t *opcntp; 4069 4070 nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp); 4071 cp = dirpath; 4072 cnt = 0; 4073 do { 4074 setnil = 0; 4075 while (*cp == '/') 4076 cp++; 4077 cp2 = cp; 4078 while (*cp2 != '\0' && *cp2 != '/') 4079 cp2++; 4080 if (*cp2 == '/') { 4081 setnil = 1; 4082 *cp2 = '\0'; 4083 } 4084 if (cp2 != cp) { 4085 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4086 *tl = txdr_unsigned(NFSV4OP_LOOKUP); 4087 nfsm_strtom(nd, cp, strlen(cp)); 4088 cnt++; 4089 } 4090 if (setnil) 4091 *cp2++ = '/'; 4092 cp = cp2; 4093 } while (*cp != '\0'); 4094 *opcntp = txdr_unsigned(2 + cnt); 4095 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4096 *tl = txdr_unsigned(NFSV4OP_GETFH); 4097 nd->nd_flag |= ND_USEGSSNAME; 4098 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4099 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4100 if (error) 4101 return (error); 4102 if (nd->nd_repstat == 0) { 4103 NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); 4104 tl += (2 + 2 * cnt); 4105 if ((len = fxdr_unsigned(int, *tl)) <= 0 || 4106 len > NFSX_FHMAX) { 4107 nd->nd_repstat = NFSERR_BADXDR; 4108 } else { 4109 nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); 4110 if (nd->nd_repstat == 0) 4111 nmp->nm_fhsize = len; 4112 } 4113 } 4114 error = nd->nd_repstat; 4115 nfsmout: 4116 mbuf_freem(nd->nd_mrep); 4117 return (error); 4118 } 4119 4120 /* 4121 * This function performs the Delegreturn RPC. 4122 */ 4123 APPLESTATIC int 4124 nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, 4125 struct nfsmount *nmp, NFSPROC_T *p, int syscred) 4126 { 4127 u_int32_t *tl; 4128 struct nfsrv_descript nfsd; 4129 struct nfsrv_descript *nd = &nfsd; 4130 int error; 4131 4132 nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, 4133 dp->nfsdl_fhlen, NULL); 4134 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 4135 *tl++ = dp->nfsdl_stateid.seqid; 4136 *tl++ = dp->nfsdl_stateid.other[0]; 4137 *tl++ = dp->nfsdl_stateid.other[1]; 4138 *tl = dp->nfsdl_stateid.other[2]; 4139 if (syscred) 4140 nd->nd_flag |= ND_USEGSSNAME; 4141 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4142 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4143 if (error) 4144 return (error); 4145 error = nd->nd_repstat; 4146 mbuf_freem(nd->nd_mrep); 4147 return (error); 4148 } 4149 4150 /* 4151 * nfs getacl call. 4152 */ 4153 APPLESTATIC int 4154 nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4155 struct acl *aclp, void *stuff) 4156 { 4157 struct nfsrv_descript nfsd, *nd = &nfsd; 4158 int error; 4159 nfsattrbit_t attrbits; 4160 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4161 4162 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4163 return (EOPNOTSUPP); 4164 NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); 4165 NFSZERO_ATTRBIT(&attrbits); 4166 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4167 (void) nfsrv_putattrbit(nd, &attrbits); 4168 error = nfscl_request(nd, vp, p, cred, stuff); 4169 if (error) 4170 return (error); 4171 if (!nd->nd_repstat) 4172 error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, 4173 NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); 4174 else 4175 error = nd->nd_repstat; 4176 mbuf_freem(nd->nd_mrep); 4177 return (error); 4178 } 4179 4180 /* 4181 * nfs setacl call. 4182 */ 4183 APPLESTATIC int 4184 nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4185 struct acl *aclp, void *stuff) 4186 { 4187 int error; 4188 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4189 4190 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4191 return (EOPNOTSUPP); 4192 error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); 4193 return (error); 4194 } 4195 4196 /* 4197 * nfs setacl call. 4198 */ 4199 static int 4200 nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4201 struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) 4202 { 4203 struct nfsrv_descript nfsd, *nd = &nfsd; 4204 int error; 4205 nfsattrbit_t attrbits; 4206 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4207 4208 if (!NFSHASNFSV4(nmp)) 4209 return (EOPNOTSUPP); 4210 NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); 4211 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 4212 NFSZERO_ATTRBIT(&attrbits); 4213 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4214 (void) nfsv4_fillattr(nd, vnode_mount(vp), vp, aclp, NULL, NULL, 0, 4215 &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0); 4216 error = nfscl_request(nd, vp, p, cred, stuff); 4217 if (error) 4218 return (error); 4219 /* Don't care about the pre/postop attributes */ 4220 mbuf_freem(nd->nd_mrep); 4221 return (nd->nd_repstat); 4222 } 4223