nfs_clrpcops.c revision 232420
1/*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/fs/nfsclient/nfs_clrpcops.c 232420 2012-03-03 01:06:54Z rmacklem $"); 36 37/* 38 * Rpc op calls, generally called from the vnode op calls or through the 39 * buffer cache, for NFS v2, 3 and 4. 40 * These do not normally make any changes to vnode arguments or use 41 * structures that might change between the VFS variants. The returned 42 * arguments are all at the end, after the NFSPROC_T *p one. 43 */ 44 45#ifndef APPLEKEXT 46#include "opt_inet6.h" 47 48#include <fs/nfs/nfsport.h> 49 50/* 51 * Global variables 52 */ 53extern int nfs_numnfscbd; 54extern struct timeval nfsboottime; 55extern u_int32_t newnfs_false, newnfs_true; 56extern nfstype nfsv34_type[9]; 57extern int nfsrv_useacl; 58extern char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 59NFSCLSTATEMUTEX; 60int nfstest_outofseq = 0; 61int nfscl_assumeposixlocks = 1; 62int nfscl_enablecallb = 0; 63short nfsv4_cbport = NFSV4_CBPORT; 64int nfstest_openallsetattr = 0; 65#endif /* !APPLEKEXT */ 66 67#define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1)) 68 69static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *, 70 struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *); 71static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *, 72 nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *); 73static int nfsrpc_writerpc(vnode_t , struct uio *, int *, int *, 74 struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, 75 void *); 76static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *, 77 nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *, 78 struct nfsvattr *, struct nfsfh **, int *, int *, void *); 79static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *, 80 nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *, 81 NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, 82 int *, void *, int *); 83static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *, 84 struct nfscllockowner *, u_int64_t, u_int64_t, 85 u_int32_t, struct ucred *, NFSPROC_T *, int); 86static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, 87 struct acl *, nfsv4stateid_t *, void *); 88 89/* 90 * nfs null call from vfs. 91 */ 92APPLESTATIC int 93nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p) 94{ 95 int error; 96 struct nfsrv_descript nfsd, *nd = &nfsd; 97 98 NFSCL_REQSTART(nd, NFSPROC_NULL, vp); 99 error = nfscl_request(nd, vp, p, cred, NULL); 100 if (nd->nd_repstat && !error) 101 error = nd->nd_repstat; 102 mbuf_freem(nd->nd_mrep); 103 return (error); 104} 105 106/* 107 * nfs access rpc op. 108 * For nfs version 3 and 4, use the access rpc to check accessibility. If file 109 * modes are changed on the server, accesses might still fail later. 110 */ 111APPLESTATIC int 112nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred, 113 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp) 114{ 115 int error; 116 u_int32_t mode, rmode; 117 118 if (acmode & VREAD) 119 mode = NFSACCESS_READ; 120 else 121 mode = 0; 122 if (vnode_vtype(vp) == VDIR) { 123 if (acmode & VWRITE) 124 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND | 125 NFSACCESS_DELETE); 126 if (acmode & VEXEC) 127 mode |= NFSACCESS_LOOKUP; 128 } else { 129 if (acmode & VWRITE) 130 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND); 131 if (acmode & VEXEC) 132 mode |= NFSACCESS_EXECUTE; 133 } 134 135 /* 136 * Now, just call nfsrpc_accessrpc() to do the actual RPC. 137 */ 138 error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode, 139 NULL); 140 141 /* 142 * The NFS V3 spec does not clarify whether or not 143 * the returned access bits can be a superset of 144 * the ones requested, so... 145 */ 146 if (!error && (rmode & mode) != mode) 147 error = EACCES; 148 return (error); 149} 150 151/* 152 * The actual rpc, separated out for Darwin. 153 */ 154APPLESTATIC int 155nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred, 156 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep, 157 void *stuff) 158{ 159 u_int32_t *tl; 160 u_int32_t supported, rmode; 161 int error; 162 struct nfsrv_descript nfsd, *nd = &nfsd; 163 nfsattrbit_t attrbits; 164 165 *attrflagp = 0; 166 supported = mode; 167 NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp); 168 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 169 *tl = txdr_unsigned(mode); 170 if (nd->nd_flag & ND_NFSV4) { 171 /* 172 * And do a Getattr op. 173 */ 174 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 175 *tl = txdr_unsigned(NFSV4OP_GETATTR); 176 NFSGETATTR_ATTRBIT(&attrbits); 177 (void) nfsrv_putattrbit(nd, &attrbits); 178 } 179 error = nfscl_request(nd, vp, p, cred, stuff); 180 if (error) 181 return (error); 182 if (nd->nd_flag & ND_NFSV3) { 183 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 184 if (error) 185 goto nfsmout; 186 } 187 if (!nd->nd_repstat) { 188 if (nd->nd_flag & ND_NFSV4) { 189 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 190 supported = fxdr_unsigned(u_int32_t, *tl++); 191 } else { 192 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 193 } 194 rmode = fxdr_unsigned(u_int32_t, *tl); 195 if (nd->nd_flag & ND_NFSV4) 196 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 197 198 /* 199 * It's not obvious what should be done about 200 * unsupported access modes. For now, be paranoid 201 * and clear the unsupported ones. 202 */ 203 rmode &= supported; 204 *rmodep = rmode; 205 } else 206 error = nd->nd_repstat; 207nfsmout: 208 mbuf_freem(nd->nd_mrep); 209 return (error); 210} 211 212/* 213 * nfs open rpc 214 */ 215APPLESTATIC int 216nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p) 217{ 218 struct nfsclopen *op; 219 struct nfscldeleg *dp; 220 struct nfsfh *nfhp; 221 struct nfsnode *np = VTONFS(vp); 222 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 223 u_int32_t mode, clidrev; 224 int ret, newone, error, expireret = 0, retrycnt; 225 226 /* 227 * For NFSv4, Open Ops are only done on Regular Files. 228 */ 229 if (vnode_vtype(vp) != VREG) 230 return (0); 231 mode = 0; 232 if (amode & FREAD) 233 mode |= NFSV4OPEN_ACCESSREAD; 234 if (amode & FWRITE) 235 mode |= NFSV4OPEN_ACCESSWRITE; 236 nfhp = np->n_fhp; 237 238 retrycnt = 0; 239#ifdef notdef 240{ char name[100]; int namel; 241namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; 242bcopy(NFS4NODENAME(np->n_v4), name, namel); 243name[namel] = '\0'; 244printf("rpcopen p=0x%x name=%s",p->p_pid,name); 245if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); 246else printf(" fhl=0\n"); 247} 248#endif 249 do { 250 dp = NULL; 251 error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1, 252 cred, p, NULL, &op, &newone, &ret, 1); 253 if (error) { 254 return (error); 255 } 256 if (nmp->nm_clp != NULL) 257 clidrev = nmp->nm_clp->nfsc_clientidrev; 258 else 259 clidrev = 0; 260 if (ret == NFSCLOPEN_DOOPEN) { 261 if (np->n_v4 != NULL) { 262 error = nfsrpc_openrpc(nmp, vp, np->n_v4->n4_data, 263 np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, 264 np->n_fhp->nfh_len, mode, op, 265 NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, &dp, 266 0, 0x0, cred, p, 0, 0); 267 if (dp != NULL) { 268#ifdef APPLE 269 OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag); 270#else 271 NFSLOCKNODE(np); 272 np->n_flag &= ~NDELEGMOD; 273 /* 274 * Invalidate the attribute cache, so that 275 * attributes that pre-date the issue of a 276 * delegation are not cached, since the 277 * cached attributes will remain valid while 278 * the delegation is held. 279 */ 280 NFSINVALATTRCACHE(np); 281 NFSUNLOCKNODE(np); 282#endif 283 (void) nfscl_deleg(nmp->nm_mountp, 284 op->nfso_own->nfsow_clp, 285 nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); 286 } 287 } else { 288 error = EIO; 289 } 290 newnfs_copyincred(cred, &op->nfso_cred); 291 } else if (ret == NFSCLOPEN_SETCRED) 292 /* 293 * This is a new local open on a delegation. It needs 294 * to have credentials so that an open can be done 295 * against the server during recovery. 296 */ 297 newnfs_copyincred(cred, &op->nfso_cred); 298 299 /* 300 * nfso_opencnt is the count of how many VOP_OPEN()s have 301 * been done on this Open successfully and a VOP_CLOSE() 302 * is expected for each of these. 303 * If error is non-zero, don't increment it, since the Open 304 * hasn't succeeded yet. 305 */ 306 if (!error) 307 op->nfso_opencnt++; 308 nfscl_openrelease(op, error, newone); 309 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 310 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 311 (void) nfs_catnap(PZERO, error, "nfs_open"); 312 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 313 && clidrev != 0) { 314 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 315 retrycnt++; 316 } 317 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 318 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 319 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 320 expireret == 0 && clidrev != 0 && retrycnt < 4)); 321 if (error && retrycnt >= 4) 322 error = EIO; 323 return (error); 324} 325 326/* 327 * the actual open rpc 328 */ 329APPLESTATIC int 330nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, 331 u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, 332 u_int8_t *name, int namelen, struct nfscldeleg **dpp, 333 int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, 334 int syscred, int recursed) 335{ 336 u_int32_t *tl; 337 struct nfsrv_descript nfsd, *nd = &nfsd; 338 struct nfscldeleg *dp, *ndp = NULL; 339 struct nfsvattr nfsva; 340 u_int32_t rflags, deleg; 341 nfsattrbit_t attrbits; 342 int error, ret, acesize, limitby; 343 344 dp = *dpp; 345 *dpp = NULL; 346 nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL); 347 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 348 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 349 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 350 *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 351 *tl++ = op->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 352 *tl = op->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 353 (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); 354 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 355 *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); 356 if (reclaim) { 357 *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); 358 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 359 *tl = txdr_unsigned(delegtype); 360 } else { 361 if (dp != NULL) { 362 *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); 363 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 364 *tl++ = dp->nfsdl_stateid.seqid; 365 *tl++ = dp->nfsdl_stateid.other[0]; 366 *tl++ = dp->nfsdl_stateid.other[1]; 367 *tl = dp->nfsdl_stateid.other[2]; 368 } else { 369 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 370 } 371 (void) nfsm_strtom(nd, name, namelen); 372 } 373 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 374 *tl = txdr_unsigned(NFSV4OP_GETATTR); 375 NFSZERO_ATTRBIT(&attrbits); 376 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 377 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); 378 (void) nfsrv_putattrbit(nd, &attrbits); 379 if (syscred) 380 nd->nd_flag |= ND_USEGSSNAME; 381 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 382 NFS_PROG, NFS_VER4, NULL, 1, NULL); 383 if (error) 384 return (error); 385 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 386 if (!nd->nd_repstat) { 387 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 388 6 * NFSX_UNSIGNED); 389 op->nfso_stateid.seqid = *tl++; 390 op->nfso_stateid.other[0] = *tl++; 391 op->nfso_stateid.other[1] = *tl++; 392 op->nfso_stateid.other[2] = *tl; 393 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 394 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 395 if (error) 396 goto nfsmout; 397 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 398 deleg = fxdr_unsigned(u_int32_t, *tl); 399 if (deleg == NFSV4OPEN_DELEGATEREAD || 400 deleg == NFSV4OPEN_DELEGATEWRITE) { 401 if (!(op->nfso_own->nfsow_clp->nfsc_flags & 402 NFSCLFLAGS_FIRSTDELEG)) 403 op->nfso_own->nfsow_clp->nfsc_flags |= 404 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 405 MALLOC(ndp, struct nfscldeleg *, 406 sizeof (struct nfscldeleg) + newfhlen, 407 M_NFSCLDELEG, M_WAITOK); 408 LIST_INIT(&ndp->nfsdl_owner); 409 LIST_INIT(&ndp->nfsdl_lock); 410 ndp->nfsdl_clp = op->nfso_own->nfsow_clp; 411 ndp->nfsdl_fhlen = newfhlen; 412 NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); 413 newnfs_copyincred(cred, &ndp->nfsdl_cred); 414 nfscl_lockinit(&ndp->nfsdl_rwlock); 415 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 416 NFSX_UNSIGNED); 417 ndp->nfsdl_stateid.seqid = *tl++; 418 ndp->nfsdl_stateid.other[0] = *tl++; 419 ndp->nfsdl_stateid.other[1] = *tl++; 420 ndp->nfsdl_stateid.other[2] = *tl++; 421 ret = fxdr_unsigned(int, *tl); 422 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 423 ndp->nfsdl_flags = NFSCLDL_WRITE; 424 /* 425 * Indicates how much the file can grow. 426 */ 427 NFSM_DISSECT(tl, u_int32_t *, 428 3 * NFSX_UNSIGNED); 429 limitby = fxdr_unsigned(int, *tl++); 430 switch (limitby) { 431 case NFSV4OPEN_LIMITSIZE: 432 ndp->nfsdl_sizelimit = fxdr_hyper(tl); 433 break; 434 case NFSV4OPEN_LIMITBLOCKS: 435 ndp->nfsdl_sizelimit = 436 fxdr_unsigned(u_int64_t, *tl++); 437 ndp->nfsdl_sizelimit *= 438 fxdr_unsigned(u_int64_t, *tl); 439 break; 440 default: 441 error = NFSERR_BADXDR; 442 goto nfsmout; 443 }; 444 } else { 445 ndp->nfsdl_flags = NFSCLDL_READ; 446 } 447 if (ret) 448 ndp->nfsdl_flags |= NFSCLDL_RECALL; 449 error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, 450 &acesize, p); 451 if (error) 452 goto nfsmout; 453 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 454 error = NFSERR_BADXDR; 455 goto nfsmout; 456 } 457 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 458 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 459 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 460 NULL, NULL, NULL, p, cred); 461 if (error) 462 goto nfsmout; 463 if (ndp != NULL) { 464 ndp->nfsdl_change = nfsva.na_filerev; 465 ndp->nfsdl_modtime = nfsva.na_mtime; 466 ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; 467 } 468 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { 469 do { 470 ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, 471 cred, p); 472 if (ret == NFSERR_DELAY) 473 (void) nfs_catnap(PZERO, ret, "nfs_open"); 474 } while (ret == NFSERR_DELAY); 475 error = ret; 476 } 477 if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || 478 nfscl_assumeposixlocks) 479 op->nfso_posixlock = 1; 480 else 481 op->nfso_posixlock = 0; 482 483 /* 484 * If the server is handing out delegations, but we didn't 485 * get one because an OpenConfirm was required, try the 486 * Open again, to get a delegation. This is a harmless no-op, 487 * from a server's point of view. 488 */ 489 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && 490 (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) 491 && !error && dp == NULL && ndp == NULL && !recursed) { 492 do { 493 ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, 494 newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, 495 cred, p, syscred, 1); 496 if (ret == NFSERR_DELAY) 497 (void) nfs_catnap(PZERO, ret, "nfs_open2"); 498 } while (ret == NFSERR_DELAY); 499 if (ret) { 500 if (ndp != NULL) 501 FREE((caddr_t)ndp, M_NFSCLDELEG); 502 if (ret == NFSERR_STALECLIENTID || 503 ret == NFSERR_STALEDONTRECOVER) 504 error = ret; 505 } 506 } 507 } 508 if (nd->nd_repstat != 0 && error == 0) 509 error = nd->nd_repstat; 510 if (error == NFSERR_STALECLIENTID) 511 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 512nfsmout: 513 if (!error) 514 *dpp = ndp; 515 else if (ndp != NULL) 516 FREE((caddr_t)ndp, M_NFSCLDELEG); 517 mbuf_freem(nd->nd_mrep); 518 return (error); 519} 520 521/* 522 * open downgrade rpc 523 */ 524APPLESTATIC int 525nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, 526 struct ucred *cred, NFSPROC_T *p) 527{ 528 u_int32_t *tl; 529 struct nfsrv_descript nfsd, *nd = &nfsd; 530 int error; 531 532 NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); 533 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 534 *tl++ = op->nfso_stateid.seqid; 535 *tl++ = op->nfso_stateid.other[0]; 536 *tl++ = op->nfso_stateid.other[1]; 537 *tl++ = op->nfso_stateid.other[2]; 538 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 539 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 540 *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 541 error = nfscl_request(nd, vp, p, cred, NULL); 542 if (error) 543 return (error); 544 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 545 if (!nd->nd_repstat) { 546 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 547 op->nfso_stateid.seqid = *tl++; 548 op->nfso_stateid.other[0] = *tl++; 549 op->nfso_stateid.other[1] = *tl++; 550 op->nfso_stateid.other[2] = *tl; 551 } 552 if (nd->nd_repstat && error == 0) 553 error = nd->nd_repstat; 554 if (error == NFSERR_STALESTATEID) 555 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 556nfsmout: 557 mbuf_freem(nd->nd_mrep); 558 return (error); 559} 560 561/* 562 * V4 Close operation. 563 */ 564APPLESTATIC int 565nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) 566{ 567 struct nfsclclient *clp; 568 int error; 569 570 if (vnode_vtype(vp) != VREG) 571 return (0); 572 if (doclose) 573 error = nfscl_doclose(vp, &clp, p); 574 else 575 error = nfscl_getclose(vp, &clp); 576 if (error) 577 return (error); 578 579 nfscl_clientrelease(clp); 580 return (0); 581} 582 583/* 584 * Close the open. 585 */ 586APPLESTATIC void 587nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p) 588{ 589 struct nfsrv_descript nfsd, *nd = &nfsd; 590 struct nfscllockowner *lp, *nlp; 591 struct nfscllock *lop, *nlop; 592 struct ucred *tcred; 593 u_int64_t off = 0, len = 0; 594 u_int32_t type = NFSV4LOCKT_READ; 595 int error, do_unlock, trycnt; 596 597 tcred = newnfs_getcred(); 598 newnfs_copycred(&op->nfso_cred, tcred); 599 /* 600 * (Theoretically this could be done in the same 601 * compound as the close, but having multiple 602 * sequenced Ops in the same compound might be 603 * too scary for some servers.) 604 */ 605 if (op->nfso_posixlock) { 606 off = 0; 607 len = NFS64BITSSET; 608 type = NFSV4LOCKT_READ; 609 } 610 611 /* 612 * Since this function is only called from VOP_INACTIVE(), no 613 * other thread will be manipulating this Open. As such, the 614 * lock lists are not being changed by other threads, so it should 615 * be safe to do this without locking. 616 */ 617 LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { 618 do_unlock = 1; 619 LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) { 620 if (op->nfso_posixlock == 0) { 621 off = lop->nfslo_first; 622 len = lop->nfslo_end - lop->nfslo_first; 623 if (lop->nfslo_type == F_WRLCK) 624 type = NFSV4LOCKT_WRITE; 625 else 626 type = NFSV4LOCKT_READ; 627 } 628 if (do_unlock) { 629 trycnt = 0; 630 do { 631 error = nfsrpc_locku(nd, nmp, lp, off, 632 len, type, tcred, p, 0); 633 if ((nd->nd_repstat == NFSERR_GRACE || 634 nd->nd_repstat == NFSERR_DELAY) && 635 error == 0) 636 (void) nfs_catnap(PZERO, 637 (int)nd->nd_repstat, 638 "nfs_close"); 639 } while ((nd->nd_repstat == NFSERR_GRACE || 640 nd->nd_repstat == NFSERR_DELAY) && 641 error == 0 && trycnt++ < 5); 642 if (op->nfso_posixlock) 643 do_unlock = 0; 644 } 645 nfscl_freelock(lop, 0); 646 } 647 /* 648 * Do a ReleaseLockOwner. 649 * The lock owner name nfsl_owner may be used by other opens for 650 * other files but the lock_owner4 name that nfsrpc_rellockown() 651 * puts on the wire has the file handle for this file appended 652 * to it, so it can be done now. 653 */ 654 (void)nfsrpc_rellockown(nmp, lp, lp->nfsl_open->nfso_fh, 655 lp->nfsl_open->nfso_fhlen, tcred, p); 656 } 657 658 /* 659 * There could be other Opens for different files on the same 660 * OpenOwner, so locking is required. 661 */ 662 NFSLOCKCLSTATE(); 663 nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); 664 NFSUNLOCKCLSTATE(); 665 do { 666 error = nfscl_tryclose(op, tcred, nmp, p); 667 if (error == NFSERR_GRACE) 668 (void) nfs_catnap(PZERO, error, "nfs_close"); 669 } while (error == NFSERR_GRACE); 670 NFSLOCKCLSTATE(); 671 nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); 672 673 LIST_FOREACH_SAFE(lp, &op->nfso_lock, nfsl_list, nlp) 674 nfscl_freelockowner(lp, 0); 675 nfscl_freeopen(op, 0); 676 NFSUNLOCKCLSTATE(); 677 NFSFREECRED(tcred); 678} 679 680/* 681 * The actual Close RPC. 682 */ 683APPLESTATIC int 684nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, 685 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, 686 int syscred) 687{ 688 u_int32_t *tl; 689 int error; 690 691 nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, 692 op->nfso_fhlen, NULL); 693 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 694 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 695 *tl++ = op->nfso_stateid.seqid; 696 *tl++ = op->nfso_stateid.other[0]; 697 *tl++ = op->nfso_stateid.other[1]; 698 *tl = op->nfso_stateid.other[2]; 699 if (syscred) 700 nd->nd_flag |= ND_USEGSSNAME; 701 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 702 NFS_PROG, NFS_VER4, NULL, 1, NULL); 703 if (error) 704 return (error); 705 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 706 if (nd->nd_repstat == 0) 707 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 708 error = nd->nd_repstat; 709 if (error == NFSERR_STALESTATEID) 710 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 711nfsmout: 712 mbuf_freem(nd->nd_mrep); 713 return (error); 714} 715 716/* 717 * V4 Open Confirm RPC. 718 */ 719APPLESTATIC int 720nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, 721 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) 722{ 723 u_int32_t *tl; 724 struct nfsrv_descript nfsd, *nd = &nfsd; 725 int error; 726 727 nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, VFSTONFS(vnode_mount(vp)), 728 nfhp, fhlen, NULL); 729 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 730 *tl++ = op->nfso_stateid.seqid; 731 *tl++ = op->nfso_stateid.other[0]; 732 *tl++ = op->nfso_stateid.other[1]; 733 *tl++ = op->nfso_stateid.other[2]; 734 *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); 735 error = nfscl_request(nd, vp, p, cred, NULL); 736 if (error) 737 return (error); 738 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 739 if (!nd->nd_repstat) { 740 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 741 op->nfso_stateid.seqid = *tl++; 742 op->nfso_stateid.other[0] = *tl++; 743 op->nfso_stateid.other[1] = *tl++; 744 op->nfso_stateid.other[2] = *tl; 745 } 746 error = nd->nd_repstat; 747 if (error == NFSERR_STALESTATEID) 748 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 749nfsmout: 750 mbuf_freem(nd->nd_mrep); 751 return (error); 752} 753 754/* 755 * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() 756 * when a mount has just occurred and when the server replies NFSERR_EXPIRED. 757 */ 758APPLESTATIC int 759nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, 760 struct ucred *cred, NFSPROC_T *p) 761{ 762 u_int32_t *tl; 763 struct nfsrv_descript nfsd; 764 struct nfsrv_descript *nd = &nfsd; 765 nfsattrbit_t attrbits; 766 u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; 767 u_short port; 768 int error, isinet6 = 0, callblen; 769 nfsquad_t confirm; 770 u_int32_t lease; 771 static u_int32_t rev = 0; 772 773 if (nfsboottime.tv_sec == 0) 774 NFSSETBOOTTIME(nfsboottime); 775 nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL); 776 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 777 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 778 *tl = txdr_unsigned(rev++); 779 (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); 780 781 /* 782 * set up the callback address 783 */ 784 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 785 *tl = txdr_unsigned(NFS_CALLBCKPROG); 786 callblen = strlen(nfsv4_callbackaddr); 787 if (callblen == 0) 788 cp = nfscl_getmyip(nmp, &isinet6); 789 if (nfscl_enablecallb && nfs_numnfscbd > 0 && 790 (callblen > 0 || cp != NULL)) { 791 port = htons(nfsv4_cbport); 792 cp2 = (u_int8_t *)&port; 793#ifdef INET6 794 if ((callblen > 0 && 795 strchr(nfsv4_callbackaddr, ':')) || isinet6) { 796 char ip6buf[INET6_ADDRSTRLEN], *ip6add; 797 798 (void) nfsm_strtom(nd, "tcp6", 4); 799 if (callblen == 0) { 800 ip6_sprintf(ip6buf, (struct in6_addr *)cp); 801 ip6add = ip6buf; 802 } else { 803 ip6add = nfsv4_callbackaddr; 804 } 805 snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", 806 ip6add, cp2[0], cp2[1]); 807 } else 808#endif 809 { 810 (void) nfsm_strtom(nd, "tcp", 3); 811 if (callblen == 0) 812 snprintf(addr, INET6_ADDRSTRLEN + 9, 813 "%d.%d.%d.%d.%d.%d", cp[0], cp[1], 814 cp[2], cp[3], cp2[0], cp2[1]); 815 else 816 snprintf(addr, INET6_ADDRSTRLEN + 9, 817 "%s.%d.%d", nfsv4_callbackaddr, 818 cp2[0], cp2[1]); 819 } 820 (void) nfsm_strtom(nd, addr, strlen(addr)); 821 } else { 822 (void) nfsm_strtom(nd, "tcp", 3); 823 (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); 824 } 825 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 826 *tl = txdr_unsigned(clp->nfsc_cbident); 827 nd->nd_flag |= ND_USEGSSNAME; 828 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 829 NFS_PROG, NFS_VER4, NULL, 1, NULL); 830 if (error) 831 return (error); 832 if (nd->nd_repstat == 0) { 833 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 834 clp->nfsc_clientid.lval[0] = *tl++; 835 clp->nfsc_clientid.lval[1] = *tl++; 836 confirm.lval[0] = *tl++; 837 confirm.lval[1] = *tl; 838 mbuf_freem(nd->nd_mrep); 839 nd->nd_mrep = NULL; 840 841 /* 842 * and confirm it. 843 */ 844 nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL); 845 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 846 *tl++ = clp->nfsc_clientid.lval[0]; 847 *tl++ = clp->nfsc_clientid.lval[1]; 848 *tl++ = confirm.lval[0]; 849 *tl = confirm.lval[1]; 850 nd->nd_flag |= ND_USEGSSNAME; 851 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 852 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 853 if (error) 854 return (error); 855 mbuf_freem(nd->nd_mrep); 856 nd->nd_mrep = NULL; 857 if (nd->nd_repstat == 0) { 858 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, 859 nmp->nm_fhsize, NULL); 860 NFSZERO_ATTRBIT(&attrbits); 861 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); 862 (void) nfsrv_putattrbit(nd, &attrbits); 863 nd->nd_flag |= ND_USEGSSNAME; 864 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 865 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 866 if (error) 867 return (error); 868 if (nd->nd_repstat == 0) { 869 error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, 870 NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); 871 if (error) 872 goto nfsmout; 873 clp->nfsc_renew = NFSCL_RENEW(lease); 874 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; 875 clp->nfsc_clientidrev++; 876 if (clp->nfsc_clientidrev == 0) 877 clp->nfsc_clientidrev++; 878 } 879 } 880 } 881 error = nd->nd_repstat; 882nfsmout: 883 mbuf_freem(nd->nd_mrep); 884 return (error); 885} 886 887/* 888 * nfs getattr call. 889 */ 890APPLESTATIC int 891nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 892 struct nfsvattr *nap, void *stuff) 893{ 894 struct nfsrv_descript nfsd, *nd = &nfsd; 895 int error; 896 nfsattrbit_t attrbits; 897 898 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 899 if (nd->nd_flag & ND_NFSV4) { 900 NFSGETATTR_ATTRBIT(&attrbits); 901 (void) nfsrv_putattrbit(nd, &attrbits); 902 } 903 error = nfscl_request(nd, vp, p, cred, stuff); 904 if (error) 905 return (error); 906 if (!nd->nd_repstat) 907 error = nfsm_loadattr(nd, nap); 908 else 909 error = nd->nd_repstat; 910 mbuf_freem(nd->nd_mrep); 911 return (error); 912} 913 914/* 915 * nfs getattr call with non-vnode arguemnts. 916 */ 917APPLESTATIC int 918nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, 919 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp) 920{ 921 struct nfsrv_descript nfsd, *nd = &nfsd; 922 int error, vers = NFS_VER2; 923 nfsattrbit_t attrbits; 924 925 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL); 926 if (nd->nd_flag & ND_NFSV4) { 927 vers = NFS_VER4; 928 NFSGETATTR_ATTRBIT(&attrbits); 929 (void) nfsrv_putattrbit(nd, &attrbits); 930 } else if (nd->nd_flag & ND_NFSV3) { 931 vers = NFS_VER3; 932 } 933 if (syscred) 934 nd->nd_flag |= ND_USEGSSNAME; 935 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 936 NFS_PROG, vers, NULL, 1, xidp); 937 if (error) 938 return (error); 939 if (!nd->nd_repstat) 940 error = nfsm_loadattr(nd, nap); 941 else 942 error = nd->nd_repstat; 943 mbuf_freem(nd->nd_mrep); 944 return (error); 945} 946 947/* 948 * Do an nfs setattr operation. 949 */ 950APPLESTATIC int 951nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, 952 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, 953 void *stuff) 954{ 955 int error, expireret = 0, openerr, retrycnt; 956 u_int32_t clidrev = 0, mode; 957 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 958 struct nfsfh *nfhp; 959 nfsv4stateid_t stateid; 960 void *lckp; 961 962 if (nmp->nm_clp != NULL) 963 clidrev = nmp->nm_clp->nfsc_clientidrev; 964 if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) 965 mode = NFSV4OPEN_ACCESSWRITE; 966 else 967 mode = NFSV4OPEN_ACCESSREAD; 968 retrycnt = 0; 969 do { 970 lckp = NULL; 971 openerr = 1; 972 if (NFSHASNFSV4(nmp)) { 973 nfhp = VTONFS(vp)->n_fhp; 974 error = nfscl_getstateid(vp, nfhp->nfh_fh, 975 nfhp->nfh_len, mode, cred, p, &stateid, &lckp); 976 if (error && vnode_vtype(vp) == VREG && 977 (mode == NFSV4OPEN_ACCESSWRITE || 978 nfstest_openallsetattr)) { 979 /* 980 * No Open stateid, so try and open the file 981 * now. 982 */ 983 if (mode == NFSV4OPEN_ACCESSWRITE) 984 openerr = nfsrpc_open(vp, FWRITE, cred, 985 p); 986 else 987 openerr = nfsrpc_open(vp, FREAD, cred, 988 p); 989 if (!openerr) 990 (void) nfscl_getstateid(vp, 991 nfhp->nfh_fh, nfhp->nfh_len, 992 mode, cred, p, &stateid, &lckp); 993 } 994 } 995 if (vap != NULL) 996 error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, 997 rnap, attrflagp, stuff); 998 else 999 error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, 1000 stuff); 1001 if (error == NFSERR_STALESTATEID) 1002 nfscl_initiate_recovery(nmp->nm_clp); 1003 if (lckp != NULL) 1004 nfscl_lockderef(lckp); 1005 if (!openerr) 1006 (void) nfsrpc_close(vp, 0, p); 1007 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1008 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1009 error == NFSERR_OLDSTATEID) { 1010 (void) nfs_catnap(PZERO, error, "nfs_setattr"); 1011 } else if ((error == NFSERR_EXPIRED || 1012 error == NFSERR_BADSTATEID) && clidrev != 0) { 1013 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1014 } 1015 retrycnt++; 1016 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1017 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1018 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1019 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1020 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1021 if (error && retrycnt >= 4) 1022 error = EIO; 1023 return (error); 1024} 1025 1026static int 1027nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap, 1028 nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, 1029 struct nfsvattr *rnap, int *attrflagp, void *stuff) 1030{ 1031 u_int32_t *tl; 1032 struct nfsrv_descript nfsd, *nd = &nfsd; 1033 int error; 1034 nfsattrbit_t attrbits; 1035 1036 *attrflagp = 0; 1037 NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp); 1038 if (nd->nd_flag & ND_NFSV4) 1039 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1040 vap->va_type = vnode_vtype(vp); 1041 nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0); 1042 if (nd->nd_flag & ND_NFSV3) { 1043 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1044 *tl = newnfs_false; 1045 } else if (nd->nd_flag & ND_NFSV4) { 1046 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1047 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1048 NFSGETATTR_ATTRBIT(&attrbits); 1049 (void) nfsrv_putattrbit(nd, &attrbits); 1050 } 1051 error = nfscl_request(nd, vp, p, cred, stuff); 1052 if (error) 1053 return (error); 1054 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1055 error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff); 1056 if ((nd->nd_flag & ND_NFSV4) && !error) 1057 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1058 if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error) 1059 error = nfscl_postop_attr(nd, rnap, attrflagp, stuff); 1060 mbuf_freem(nd->nd_mrep); 1061 if (nd->nd_repstat && !error) 1062 error = nd->nd_repstat; 1063 return (error); 1064} 1065 1066/* 1067 * nfs lookup rpc 1068 */ 1069APPLESTATIC int 1070nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred, 1071 NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap, 1072 struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff) 1073{ 1074 u_int32_t *tl; 1075 struct nfsrv_descript nfsd, *nd = &nfsd; 1076 struct nfsmount *nmp; 1077 struct nfsnode *np; 1078 struct nfsfh *nfhp; 1079 nfsattrbit_t attrbits; 1080 int error = 0, lookupp = 0; 1081 1082 *attrflagp = 0; 1083 *dattrflagp = 0; 1084 if (vnode_vtype(dvp) != VDIR) 1085 return (ENOTDIR); 1086 nmp = VFSTONFS(vnode_mount(dvp)); 1087 if (len > NFS_MAXNAMLEN) 1088 return (ENAMETOOLONG); 1089 if (NFSHASNFSV4(nmp) && len == 1 && 1090 name[0] == '.') { 1091 /* 1092 * Just return the current dir's fh. 1093 */ 1094 np = VTONFS(dvp); 1095 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1096 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1097 nfhp->nfh_len = np->n_fhp->nfh_len; 1098 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1099 *nfhpp = nfhp; 1100 return (0); 1101 } 1102 if (NFSHASNFSV4(nmp) && len == 2 && 1103 name[0] == '.' && name[1] == '.') { 1104 lookupp = 1; 1105 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp); 1106 } else { 1107 NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp); 1108 (void) nfsm_strtom(nd, name, len); 1109 } 1110 if (nd->nd_flag & ND_NFSV4) { 1111 NFSGETATTR_ATTRBIT(&attrbits); 1112 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1113 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1114 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1115 (void) nfsrv_putattrbit(nd, &attrbits); 1116 } 1117 error = nfscl_request(nd, dvp, p, cred, stuff); 1118 if (error) 1119 return (error); 1120 if (nd->nd_repstat) { 1121 /* 1122 * When an NFSv4 Lookupp returns ENOENT, it means that 1123 * the lookup is at the root of an fs, so return this dir. 1124 */ 1125 if (nd->nd_repstat == NFSERR_NOENT && lookupp) { 1126 np = VTONFS(dvp); 1127 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1128 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1129 nfhp->nfh_len = np->n_fhp->nfh_len; 1130 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1131 *nfhpp = nfhp; 1132 mbuf_freem(nd->nd_mrep); 1133 return (0); 1134 } 1135 if (nd->nd_flag & ND_NFSV3) 1136 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1137 goto nfsmout; 1138 } 1139 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 1140 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1141 if (*(tl + 1)) { 1142 nd->nd_flag |= ND_NOMOREDATA; 1143 goto nfsmout; 1144 } 1145 } 1146 error = nfsm_getfh(nd, nfhpp); 1147 if (error) 1148 goto nfsmout; 1149 1150 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1151 if ((nd->nd_flag & ND_NFSV3) && !error) 1152 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1153nfsmout: 1154 mbuf_freem(nd->nd_mrep); 1155 if (!error && nd->nd_repstat) 1156 error = nd->nd_repstat; 1157 return (error); 1158} 1159 1160/* 1161 * Do a readlink rpc. 1162 */ 1163APPLESTATIC int 1164nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred, 1165 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1166{ 1167 u_int32_t *tl; 1168 struct nfsrv_descript nfsd, *nd = &nfsd; 1169 struct nfsnode *np = VTONFS(vp); 1170 nfsattrbit_t attrbits; 1171 int error, len, cangetattr = 1; 1172 1173 *attrflagp = 0; 1174 NFSCL_REQSTART(nd, NFSPROC_READLINK, vp); 1175 if (nd->nd_flag & ND_NFSV4) { 1176 /* 1177 * And do a Getattr op. 1178 */ 1179 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1180 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1181 NFSGETATTR_ATTRBIT(&attrbits); 1182 (void) nfsrv_putattrbit(nd, &attrbits); 1183 } 1184 error = nfscl_request(nd, vp, p, cred, stuff); 1185 if (error) 1186 return (error); 1187 if (nd->nd_flag & ND_NFSV3) 1188 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1189 if (!nd->nd_repstat && !error) { 1190 NFSM_STRSIZ(len, NFS_MAXPATHLEN); 1191 /* 1192 * This seems weird to me, but must have been added to 1193 * FreeBSD for some reason. The only thing I can think of 1194 * is that there was/is some server that replies with 1195 * more link data than it should? 1196 */ 1197 if (len == NFS_MAXPATHLEN) { 1198 NFSLOCKNODE(np); 1199 if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) { 1200 len = np->n_size; 1201 cangetattr = 0; 1202 } 1203 NFSUNLOCKNODE(np); 1204 } 1205 error = nfsm_mbufuio(nd, uiop, len); 1206 if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr) 1207 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1208 } 1209 if (nd->nd_repstat && !error) 1210 error = nd->nd_repstat; 1211nfsmout: 1212 mbuf_freem(nd->nd_mrep); 1213 return (error); 1214} 1215 1216/* 1217 * Read operation. 1218 */ 1219APPLESTATIC int 1220nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred, 1221 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1222{ 1223 int error, expireret = 0, retrycnt; 1224 u_int32_t clidrev = 0; 1225 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1226 struct nfsnode *np = VTONFS(vp); 1227 struct ucred *newcred; 1228 struct nfsfh *nfhp = NULL; 1229 nfsv4stateid_t stateid; 1230 void *lckp; 1231 1232 if (nmp->nm_clp != NULL) 1233 clidrev = nmp->nm_clp->nfsc_clientidrev; 1234 newcred = cred; 1235 if (NFSHASNFSV4(nmp)) { 1236 nfhp = np->n_fhp; 1237 newcred = NFSNEWCRED(cred); 1238 } 1239 retrycnt = 0; 1240 do { 1241 lckp = NULL; 1242 if (NFSHASNFSV4(nmp)) 1243 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1244 NFSV4OPEN_ACCESSREAD, newcred, p, &stateid, &lckp); 1245 error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap, 1246 attrflagp, stuff); 1247 if (error == NFSERR_STALESTATEID) 1248 nfscl_initiate_recovery(nmp->nm_clp); 1249 if (lckp != NULL) 1250 nfscl_lockderef(lckp); 1251 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1252 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1253 error == NFSERR_OLDSTATEID) { 1254 (void) nfs_catnap(PZERO, error, "nfs_read"); 1255 } else if ((error == NFSERR_EXPIRED || 1256 error == NFSERR_BADSTATEID) && clidrev != 0) { 1257 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1258 } 1259 retrycnt++; 1260 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1261 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1262 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1263 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1264 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1265 if (error && retrycnt >= 4) 1266 error = EIO; 1267 if (NFSHASNFSV4(nmp)) 1268 NFSFREECRED(newcred); 1269 return (error); 1270} 1271 1272/* 1273 * The actual read RPC. 1274 */ 1275static int 1276nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred, 1277 nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap, 1278 int *attrflagp, void *stuff) 1279{ 1280 u_int32_t *tl; 1281 int error = 0, len, retlen, tsiz, eof = 0; 1282 struct nfsrv_descript nfsd; 1283 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1284 struct nfsrv_descript *nd = &nfsd; 1285 int rsize; 1286 off_t tmp_off; 1287 1288 *attrflagp = 0; 1289 tsiz = uio_uio_resid(uiop); 1290 tmp_off = uiop->uio_offset + tsiz; 1291 NFSLOCKMNT(nmp); 1292 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1293 NFSUNLOCKMNT(nmp); 1294 return (EFBIG); 1295 } 1296 rsize = nmp->nm_rsize; 1297 NFSUNLOCKMNT(nmp); 1298 nd->nd_mrep = NULL; 1299 while (tsiz > 0) { 1300 *attrflagp = 0; 1301 len = (tsiz > rsize) ? rsize : tsiz; 1302 NFSCL_REQSTART(nd, NFSPROC_READ, vp); 1303 if (nd->nd_flag & ND_NFSV4) 1304 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1305 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1306 if (nd->nd_flag & ND_NFSV2) { 1307 *tl++ = txdr_unsigned(uiop->uio_offset); 1308 *tl++ = txdr_unsigned(len); 1309 *tl = 0; 1310 } else { 1311 txdr_hyper(uiop->uio_offset, tl); 1312 *(tl + 2) = txdr_unsigned(len); 1313 } 1314 /* 1315 * Since I can't do a Getattr for NFSv4 for Write, there 1316 * doesn't seem any point in doing one here, either. 1317 * (See the comment in nfsrpc_writerpc() for more info.) 1318 */ 1319 error = nfscl_request(nd, vp, p, cred, stuff); 1320 if (error) 1321 return (error); 1322 if (nd->nd_flag & ND_NFSV3) { 1323 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1324 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 1325 error = nfsm_loadattr(nd, nap); 1326 if (!error) 1327 *attrflagp = 1; 1328 } 1329 if (nd->nd_repstat || error) { 1330 if (!error) 1331 error = nd->nd_repstat; 1332 goto nfsmout; 1333 } 1334 if (nd->nd_flag & ND_NFSV3) { 1335 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1336 eof = fxdr_unsigned(int, *(tl + 1)); 1337 } else if (nd->nd_flag & ND_NFSV4) { 1338 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1339 eof = fxdr_unsigned(int, *tl); 1340 } 1341 NFSM_STRSIZ(retlen, rsize); 1342 error = nfsm_mbufuio(nd, uiop, retlen); 1343 if (error) 1344 goto nfsmout; 1345 mbuf_freem(nd->nd_mrep); 1346 nd->nd_mrep = NULL; 1347 tsiz -= retlen; 1348 if (!(nd->nd_flag & ND_NFSV2)) { 1349 if (eof || retlen == 0) 1350 tsiz = 0; 1351 } else if (retlen < len) 1352 tsiz = 0; 1353 } 1354 return (0); 1355nfsmout: 1356 if (nd->nd_mrep != NULL) 1357 mbuf_freem(nd->nd_mrep); 1358 return (error); 1359} 1360 1361/* 1362 * nfs write operation 1363 * When called_from_strategy != 0, it should return EIO for an error that 1364 * indicates recovery is in progress, so that the buffer will be left 1365 * dirty and be written back to the server later. If it loops around, 1366 * the recovery thread could get stuck waiting for the buffer and recovery 1367 * will then deadlock. 1368 */ 1369APPLESTATIC int 1370nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, 1371 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 1372 void *stuff, int called_from_strategy) 1373{ 1374 int error, expireret = 0, retrycnt, nostateid; 1375 u_int32_t clidrev = 0; 1376 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1377 struct nfsnode *np = VTONFS(vp); 1378 struct ucred *newcred; 1379 struct nfsfh *nfhp = NULL; 1380 nfsv4stateid_t stateid; 1381 void *lckp; 1382 1383 *must_commit = 0; 1384 if (nmp->nm_clp != NULL) 1385 clidrev = nmp->nm_clp->nfsc_clientidrev; 1386 newcred = cred; 1387 if (NFSHASNFSV4(nmp)) { 1388 newcred = NFSNEWCRED(cred); 1389 nfhp = np->n_fhp; 1390 } 1391 retrycnt = 0; 1392 do { 1393 lckp = NULL; 1394 nostateid = 0; 1395 if (NFSHASNFSV4(nmp)) { 1396 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1397 NFSV4OPEN_ACCESSWRITE, newcred, p, &stateid, &lckp); 1398 if (stateid.other[0] == 0 && stateid.other[1] == 0 && 1399 stateid.other[2] == 0) { 1400 nostateid = 1; 1401 printf("stateid0 in write\n"); 1402 } 1403 } 1404 1405 /* 1406 * If there is no stateid for NFSv4, it means this is an 1407 * extraneous write after close. Basically a poorly 1408 * implemented buffer cache. Just don't do the write. 1409 */ 1410 if (nostateid) 1411 error = 0; 1412 else 1413 error = nfsrpc_writerpc(vp, uiop, iomode, must_commit, 1414 newcred, &stateid, p, nap, attrflagp, stuff); 1415 if (error == NFSERR_STALESTATEID) 1416 nfscl_initiate_recovery(nmp->nm_clp); 1417 if (lckp != NULL) 1418 nfscl_lockderef(lckp); 1419 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1420 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1421 error == NFSERR_OLDSTATEID) { 1422 (void) nfs_catnap(PZERO, error, "nfs_write"); 1423 } else if ((error == NFSERR_EXPIRED || 1424 error == NFSERR_BADSTATEID) && clidrev != 0) { 1425 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1426 } 1427 retrycnt++; 1428 } while (error == NFSERR_GRACE || error == NFSERR_DELAY || 1429 ((error == NFSERR_STALESTATEID || 1430 error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) || 1431 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1432 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1433 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1434 if (error != 0 && (retrycnt >= 4 || 1435 ((error == NFSERR_STALESTATEID || 1436 error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0))) 1437 error = EIO; 1438 if (NFSHASNFSV4(nmp)) 1439 NFSFREECRED(newcred); 1440 return (error); 1441} 1442 1443/* 1444 * The actual write RPC. 1445 */ 1446static int 1447nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, 1448 int *must_commit, struct ucred *cred, nfsv4stateid_t *stateidp, 1449 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1450{ 1451 u_int32_t *tl; 1452 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1453 struct nfsnode *np = VTONFS(vp); 1454 int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; 1455 int wccflag = 0, wsize; 1456 int32_t backup; 1457 struct nfsrv_descript nfsd; 1458 struct nfsrv_descript *nd = &nfsd; 1459 nfsattrbit_t attrbits; 1460 off_t tmp_off; 1461 1462 KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1")); 1463 *attrflagp = 0; 1464 tsiz = uio_uio_resid(uiop); 1465 tmp_off = uiop->uio_offset + tsiz; 1466 NFSLOCKMNT(nmp); 1467 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1468 NFSUNLOCKMNT(nmp); 1469 return (EFBIG); 1470 } 1471 wsize = nmp->nm_wsize; 1472 NFSUNLOCKMNT(nmp); 1473 nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ 1474 nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ 1475 while (tsiz > 0) { 1476 *attrflagp = 0; 1477 len = (tsiz > wsize) ? wsize : tsiz; 1478 NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); 1479 if (nd->nd_flag & ND_NFSV4) { 1480 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1481 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); 1482 txdr_hyper(uiop->uio_offset, tl); 1483 tl += 2; 1484 *tl++ = txdr_unsigned(*iomode); 1485 *tl = txdr_unsigned(len); 1486 } else if (nd->nd_flag & ND_NFSV3) { 1487 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); 1488 txdr_hyper(uiop->uio_offset, tl); 1489 tl += 2; 1490 *tl++ = txdr_unsigned(len); 1491 *tl++ = txdr_unsigned(*iomode); 1492 *tl = txdr_unsigned(len); 1493 } else { 1494 u_int32_t x; 1495 1496 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1497 /* 1498 * Not sure why someone changed this, since the 1499 * RFC clearly states that "beginoffset" and 1500 * "totalcount" are ignored, but it wouldn't 1501 * surprise me if there's a busted server out there. 1502 */ 1503 /* Set both "begin" and "current" to non-garbage. */ 1504 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1505 *tl++ = x; /* "begin offset" */ 1506 *tl++ = x; /* "current offset" */ 1507 x = txdr_unsigned(len); 1508 *tl++ = x; /* total to this offset */ 1509 *tl = x; /* size of this write */ 1510 1511 } 1512 nfsm_uiombuf(nd, uiop, len); 1513 /* 1514 * Although it is tempting to do a normal Getattr Op in the 1515 * NFSv4 compound, the result can be a nearly hung client 1516 * system if the Getattr asks for Owner and/or OwnerGroup. 1517 * It occurs when the client can't map either the Owner or 1518 * Owner_group name in the Getattr reply to a uid/gid. When 1519 * there is a cache miss, the kernel does an upcall to the 1520 * nfsuserd. Then, it can try and read the local /etc/passwd 1521 * or /etc/group file. It can then block in getnewbuf(), 1522 * waiting for dirty writes to be pushed to the NFS server. 1523 * The only reason this doesn't result in a complete 1524 * deadlock, is that the upcall times out and allows 1525 * the write to complete. However, progress is so slow 1526 * that it might just as well be deadlocked. 1527 * As such, we get the rest of the attributes, but not 1528 * Owner or Owner_group. 1529 * nb: nfscl_loadattrcache() needs to be told that these 1530 * partial attributes from a write rpc are being 1531 * passed in, via a argument flag. 1532 */ 1533 if (nd->nd_flag & ND_NFSV4) { 1534 NFSWRITEGETATTR_ATTRBIT(&attrbits); 1535 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1536 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1537 (void) nfsrv_putattrbit(nd, &attrbits); 1538 } 1539 error = nfscl_request(nd, vp, p, cred, stuff); 1540 if (error) 1541 return (error); 1542 if (nd->nd_repstat) { 1543 /* 1544 * In case the rpc gets retried, roll 1545 * the uio fileds changed by nfsm_uiombuf() 1546 * back. 1547 */ 1548 uiop->uio_offset -= len; 1549 uio_uio_resid_add(uiop, len); 1550 uio_iov_base_add(uiop, -len); 1551 uio_iov_len_add(uiop, len); 1552 } 1553 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1554 error = nfscl_wcc_data(nd, vp, nap, attrflagp, 1555 &wccflag, stuff); 1556 if (error) 1557 goto nfsmout; 1558 } 1559 if (!nd->nd_repstat) { 1560 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1561 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1562 + NFSX_VERF); 1563 rlen = fxdr_unsigned(int, *tl++); 1564 if (rlen == 0) { 1565 error = NFSERR_IO; 1566 goto nfsmout; 1567 } else if (rlen < len) { 1568 backup = len - rlen; 1569 uio_iov_base_add(uiop, -(backup)); 1570 uio_iov_len_add(uiop, backup); 1571 uiop->uio_offset -= backup; 1572 uio_uio_resid_add(uiop, backup); 1573 len = rlen; 1574 } 1575 commit = fxdr_unsigned(int, *tl++); 1576 1577 /* 1578 * Return the lowest committment level 1579 * obtained by any of the RPCs. 1580 */ 1581 if (committed == NFSWRITE_FILESYNC) 1582 committed = commit; 1583 else if (committed == NFSWRITE_DATASYNC && 1584 commit == NFSWRITE_UNSTABLE) 1585 committed = commit; 1586 NFSLOCKMNT(nmp); 1587 if (!NFSHASWRITEVERF(nmp)) { 1588 NFSBCOPY((caddr_t)tl, 1589 (caddr_t)&nmp->nm_verf[0], 1590 NFSX_VERF); 1591 NFSSETWRITEVERF(nmp); 1592 } else if (NFSBCMP(tl, nmp->nm_verf, 1593 NFSX_VERF)) { 1594 *must_commit = 1; 1595 NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); 1596 } 1597 NFSUNLOCKMNT(nmp); 1598 } 1599 if (nd->nd_flag & ND_NFSV4) 1600 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1601 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { 1602 error = nfsm_loadattr(nd, nap); 1603 if (!error) 1604 *attrflagp = NFS_LATTR_NOSHRINK; 1605 } 1606 } else { 1607 error = nd->nd_repstat; 1608 } 1609 if (error) 1610 goto nfsmout; 1611 NFSWRITERPC_SETTIME(wccflag, np, (nd->nd_flag & ND_NFSV4)); 1612 mbuf_freem(nd->nd_mrep); 1613 nd->nd_mrep = NULL; 1614 tsiz -= len; 1615 } 1616nfsmout: 1617 if (nd->nd_mrep != NULL) 1618 mbuf_freem(nd->nd_mrep); 1619 *iomode = committed; 1620 if (nd->nd_repstat && !error) 1621 error = nd->nd_repstat; 1622 return (error); 1623} 1624 1625/* 1626 * nfs mknod rpc 1627 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1628 * mode set to specify the file type and the size field for rdev. 1629 */ 1630APPLESTATIC int 1631nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1632 u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, 1633 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1634 int *attrflagp, int *dattrflagp, void *dstuff) 1635{ 1636 u_int32_t *tl; 1637 int error = 0; 1638 struct nfsrv_descript nfsd, *nd = &nfsd; 1639 nfsattrbit_t attrbits; 1640 1641 *nfhpp = NULL; 1642 *attrflagp = 0; 1643 *dattrflagp = 0; 1644 if (namelen > NFS_MAXNAMLEN) 1645 return (ENAMETOOLONG); 1646 NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); 1647 if (nd->nd_flag & ND_NFSV4) { 1648 if (vtyp == VBLK || vtyp == VCHR) { 1649 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1650 *tl++ = vtonfsv34_type(vtyp); 1651 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1652 *tl = txdr_unsigned(NFSMINOR(rdev)); 1653 } else { 1654 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1655 *tl = vtonfsv34_type(vtyp); 1656 } 1657 } 1658 (void) nfsm_strtom(nd, name, namelen); 1659 if (nd->nd_flag & ND_NFSV3) { 1660 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1661 *tl = vtonfsv34_type(vtyp); 1662 } 1663 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1664 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1665 if ((nd->nd_flag & ND_NFSV3) && 1666 (vtyp == VCHR || vtyp == VBLK)) { 1667 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1668 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1669 *tl = txdr_unsigned(NFSMINOR(rdev)); 1670 } 1671 if (nd->nd_flag & ND_NFSV4) { 1672 NFSGETATTR_ATTRBIT(&attrbits); 1673 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1674 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1675 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1676 (void) nfsrv_putattrbit(nd, &attrbits); 1677 } 1678 if (nd->nd_flag & ND_NFSV2) 1679 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); 1680 error = nfscl_request(nd, dvp, p, cred, dstuff); 1681 if (error) 1682 return (error); 1683 if (nd->nd_flag & ND_NFSV4) 1684 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1685 if (!nd->nd_repstat) { 1686 if (nd->nd_flag & ND_NFSV4) { 1687 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1688 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1689 if (error) 1690 goto nfsmout; 1691 } 1692 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1693 if (error) 1694 goto nfsmout; 1695 } 1696 if (nd->nd_flag & ND_NFSV3) 1697 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1698 if (!error && nd->nd_repstat) 1699 error = nd->nd_repstat; 1700nfsmout: 1701 mbuf_freem(nd->nd_mrep); 1702 return (error); 1703} 1704 1705/* 1706 * nfs file create call 1707 * Mostly just call the approriate routine. (I separated out v4, so that 1708 * error recovery wouldn't be as difficult.) 1709 */ 1710APPLESTATIC int 1711nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1712 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1713 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1714 int *attrflagp, int *dattrflagp, void *dstuff) 1715{ 1716 int error = 0, newone, expireret = 0, retrycnt, unlocked; 1717 struct nfsclowner *owp; 1718 struct nfscldeleg *dp; 1719 struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); 1720 u_int32_t clidrev; 1721 1722 if (NFSHASNFSV4(nmp)) { 1723 retrycnt = 0; 1724 do { 1725 dp = NULL; 1726 error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | 1727 NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, 1728 NULL, 1); 1729 if (error) 1730 return (error); 1731 if (nmp->nm_clp != NULL) 1732 clidrev = nmp->nm_clp->nfsc_clientidrev; 1733 else 1734 clidrev = 0; 1735 error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, fmode, 1736 owp, &dp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1737 dstuff, &unlocked); 1738 /* 1739 * There is no need to invalidate cached attributes here, 1740 * since new post-delegation issue attributes are always 1741 * returned by nfsrpc_createv4() and these will update the 1742 * attribute cache. 1743 */ 1744 if (dp != NULL) 1745 (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, 1746 (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); 1747 nfscl_ownerrelease(owp, error, newone, unlocked); 1748 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1749 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 1750 (void) nfs_catnap(PZERO, error, "nfs_open"); 1751 } else if ((error == NFSERR_EXPIRED || 1752 error == NFSERR_BADSTATEID) && clidrev != 0) { 1753 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1754 retrycnt++; 1755 } 1756 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1757 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1758 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1759 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1760 if (error && retrycnt >= 4) 1761 error = EIO; 1762 } else { 1763 error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, 1764 fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1765 dstuff); 1766 } 1767 return (error); 1768} 1769 1770/* 1771 * The create rpc for v2 and 3. 1772 */ 1773static int 1774nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1775 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1776 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1777 int *attrflagp, int *dattrflagp, void *dstuff) 1778{ 1779 u_int32_t *tl; 1780 int error = 0; 1781 struct nfsrv_descript nfsd, *nd = &nfsd; 1782 1783 *nfhpp = NULL; 1784 *attrflagp = 0; 1785 *dattrflagp = 0; 1786 if (namelen > NFS_MAXNAMLEN) 1787 return (ENAMETOOLONG); 1788 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1789 (void) nfsm_strtom(nd, name, namelen); 1790 if (nd->nd_flag & ND_NFSV3) { 1791 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1792 if (fmode & O_EXCL) { 1793 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1794 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1795 *tl++ = cverf.lval[0]; 1796 *tl = cverf.lval[1]; 1797 } else { 1798 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1799 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1800 } 1801 } else { 1802 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); 1803 } 1804 error = nfscl_request(nd, dvp, p, cred, dstuff); 1805 if (error) 1806 return (error); 1807 if (nd->nd_repstat == 0) { 1808 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1809 if (error) 1810 goto nfsmout; 1811 } 1812 if (nd->nd_flag & ND_NFSV3) 1813 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1814 if (nd->nd_repstat != 0 && error == 0) 1815 error = nd->nd_repstat; 1816nfsmout: 1817 mbuf_freem(nd->nd_mrep); 1818 return (error); 1819} 1820 1821static int 1822nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1823 nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, 1824 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 1825 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 1826 int *dattrflagp, void *dstuff, int *unlockedp) 1827{ 1828 u_int32_t *tl; 1829 int error = 0, deleg, newone, ret, acesize, limitby; 1830 struct nfsrv_descript nfsd, *nd = &nfsd; 1831 struct nfsclopen *op; 1832 struct nfscldeleg *dp = NULL; 1833 struct nfsnode *np; 1834 struct nfsfh *nfhp; 1835 nfsattrbit_t attrbits; 1836 nfsv4stateid_t stateid; 1837 u_int32_t rflags; 1838 1839 *unlockedp = 0; 1840 *nfhpp = NULL; 1841 *dpp = NULL; 1842 *attrflagp = 0; 1843 *dattrflagp = 0; 1844 if (namelen > NFS_MAXNAMLEN) 1845 return (ENAMETOOLONG); 1846 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1847 /* 1848 * For V4, this is actually an Open op. 1849 */ 1850 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1851 *tl++ = txdr_unsigned(owp->nfsow_seqid); 1852 *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | 1853 NFSV4OPEN_ACCESSREAD); 1854 *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); 1855 *tl++ = owp->nfsow_clp->nfsc_clientid.lval[0]; 1856 *tl = owp->nfsow_clp->nfsc_clientid.lval[1]; 1857 (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); 1858 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1859 *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); 1860 if (fmode & O_EXCL) { 1861 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1862 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1863 *tl++ = cverf.lval[0]; 1864 *tl = cverf.lval[1]; 1865 } else { 1866 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1867 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1868 } 1869 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1870 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 1871 (void) nfsm_strtom(nd, name, namelen); 1872 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1873 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1874 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1875 NFSGETATTR_ATTRBIT(&attrbits); 1876 (void) nfsrv_putattrbit(nd, &attrbits); 1877 error = nfscl_request(nd, dvp, p, cred, dstuff); 1878 if (error) 1879 return (error); 1880 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1881 if (error) 1882 goto nfsmout; 1883 NFSCL_INCRSEQID(owp->nfsow_seqid, nd); 1884 if (nd->nd_repstat == 0) { 1885 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1886 6 * NFSX_UNSIGNED); 1887 stateid.seqid = *tl++; 1888 stateid.other[0] = *tl++; 1889 stateid.other[1] = *tl++; 1890 stateid.other[2] = *tl; 1891 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 1892 (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1893 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1894 deleg = fxdr_unsigned(int, *tl); 1895 if (deleg == NFSV4OPEN_DELEGATEREAD || 1896 deleg == NFSV4OPEN_DELEGATEWRITE) { 1897 if (!(owp->nfsow_clp->nfsc_flags & 1898 NFSCLFLAGS_FIRSTDELEG)) 1899 owp->nfsow_clp->nfsc_flags |= 1900 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 1901 MALLOC(dp, struct nfscldeleg *, 1902 sizeof (struct nfscldeleg) + NFSX_V4FHMAX, 1903 M_NFSCLDELEG, M_WAITOK); 1904 LIST_INIT(&dp->nfsdl_owner); 1905 LIST_INIT(&dp->nfsdl_lock); 1906 dp->nfsdl_clp = owp->nfsow_clp; 1907 newnfs_copyincred(cred, &dp->nfsdl_cred); 1908 nfscl_lockinit(&dp->nfsdl_rwlock); 1909 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1910 NFSX_UNSIGNED); 1911 dp->nfsdl_stateid.seqid = *tl++; 1912 dp->nfsdl_stateid.other[0] = *tl++; 1913 dp->nfsdl_stateid.other[1] = *tl++; 1914 dp->nfsdl_stateid.other[2] = *tl++; 1915 ret = fxdr_unsigned(int, *tl); 1916 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 1917 dp->nfsdl_flags = NFSCLDL_WRITE; 1918 /* 1919 * Indicates how much the file can grow. 1920 */ 1921 NFSM_DISSECT(tl, u_int32_t *, 1922 3 * NFSX_UNSIGNED); 1923 limitby = fxdr_unsigned(int, *tl++); 1924 switch (limitby) { 1925 case NFSV4OPEN_LIMITSIZE: 1926 dp->nfsdl_sizelimit = fxdr_hyper(tl); 1927 break; 1928 case NFSV4OPEN_LIMITBLOCKS: 1929 dp->nfsdl_sizelimit = 1930 fxdr_unsigned(u_int64_t, *tl++); 1931 dp->nfsdl_sizelimit *= 1932 fxdr_unsigned(u_int64_t, *tl); 1933 break; 1934 default: 1935 error = NFSERR_BADXDR; 1936 goto nfsmout; 1937 }; 1938 } else { 1939 dp->nfsdl_flags = NFSCLDL_READ; 1940 } 1941 if (ret) 1942 dp->nfsdl_flags |= NFSCLDL_RECALL; 1943 error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, 1944 &acesize, p); 1945 if (error) 1946 goto nfsmout; 1947 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 1948 error = NFSERR_BADXDR; 1949 goto nfsmout; 1950 } 1951 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1952 if (error) 1953 goto nfsmout; 1954 if (dp != NULL && *attrflagp) { 1955 dp->nfsdl_change = nnap->na_filerev; 1956 dp->nfsdl_modtime = nnap->na_mtime; 1957 dp->nfsdl_flags |= NFSCLDL_MODTIMESET; 1958 } 1959 /* 1960 * We can now complete the Open state. 1961 */ 1962 nfhp = *nfhpp; 1963 if (dp != NULL) { 1964 dp->nfsdl_fhlen = nfhp->nfh_len; 1965 NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); 1966 } 1967 /* 1968 * Get an Open structure that will be 1969 * attached to the OpenOwner, acquired already. 1970 */ 1971 error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, 1972 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, 1973 cred, p, NULL, &op, &newone, NULL, 0); 1974 if (error) 1975 goto nfsmout; 1976 op->nfso_stateid = stateid; 1977 newnfs_copyincred(cred, &op->nfso_cred); 1978 if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { 1979 do { 1980 ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, 1981 nfhp->nfh_len, op, cred, p); 1982 if (ret == NFSERR_DELAY) 1983 (void) nfs_catnap(PZERO, ret, "nfs_create"); 1984 } while (ret == NFSERR_DELAY); 1985 error = ret; 1986 } 1987 1988 /* 1989 * If the server is handing out delegations, but we didn't 1990 * get one because an OpenConfirm was required, try the 1991 * Open again, to get a delegation. This is a harmless no-op, 1992 * from a server's point of view. 1993 */ 1994 if ((rflags & NFSV4OPEN_RESULTCONFIRM) && 1995 (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && 1996 !error && dp == NULL) { 1997 np = VTONFS(dvp); 1998 do { 1999 ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, 2000 np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 2001 nfhp->nfh_fh, nfhp->nfh_len, 2002 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, 2003 name, namelen, &dp, 0, 0x0, cred, p, 0, 1); 2004 if (ret == NFSERR_DELAY) 2005 (void) nfs_catnap(PZERO, ret, "nfs_crt2"); 2006 } while (ret == NFSERR_DELAY); 2007 if (ret) { 2008 if (dp != NULL) 2009 FREE((caddr_t)dp, M_NFSCLDELEG); 2010 if (ret == NFSERR_STALECLIENTID || 2011 ret == NFSERR_STALEDONTRECOVER) 2012 error = ret; 2013 } 2014 } 2015 nfscl_openrelease(op, error, newone); 2016 *unlockedp = 1; 2017 } 2018 if (nd->nd_repstat != 0 && error == 0) 2019 error = nd->nd_repstat; 2020 if (error == NFSERR_STALECLIENTID) 2021 nfscl_initiate_recovery(owp->nfsow_clp); 2022nfsmout: 2023 if (!error) 2024 *dpp = dp; 2025 else if (dp != NULL) 2026 FREE((caddr_t)dp, M_NFSCLDELEG); 2027 mbuf_freem(nd->nd_mrep); 2028 return (error); 2029} 2030 2031/* 2032 * Nfs remove rpc 2033 */ 2034APPLESTATIC int 2035nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, 2036 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, 2037 void *dstuff) 2038{ 2039 u_int32_t *tl; 2040 struct nfsrv_descript nfsd, *nd = &nfsd; 2041 struct nfsnode *np; 2042 struct nfsmount *nmp; 2043 nfsv4stateid_t dstateid; 2044 int error, ret = 0, i; 2045 2046 *dattrflagp = 0; 2047 if (namelen > NFS_MAXNAMLEN) 2048 return (ENAMETOOLONG); 2049 nmp = VFSTONFS(vnode_mount(dvp)); 2050tryagain: 2051 if (NFSHASNFSV4(nmp) && ret == 0) { 2052 ret = nfscl_removedeleg(vp, p, &dstateid); 2053 if (ret == 1) { 2054 NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); 2055 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 2056 NFSX_UNSIGNED); 2057 *tl++ = dstateid.seqid; 2058 *tl++ = dstateid.other[0]; 2059 *tl++ = dstateid.other[1]; 2060 *tl++ = dstateid.other[2]; 2061 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2062 np = VTONFS(dvp); 2063 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2064 np->n_fhp->nfh_len, 0); 2065 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2066 *tl = txdr_unsigned(NFSV4OP_REMOVE); 2067 } 2068 } else { 2069 ret = 0; 2070 } 2071 if (ret == 0) 2072 NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); 2073 (void) nfsm_strtom(nd, name, namelen); 2074 error = nfscl_request(nd, dvp, p, cred, dstuff); 2075 if (error) 2076 return (error); 2077 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2078 /* For NFSv4, parse out any Delereturn replies. */ 2079 if (ret > 0 && nd->nd_repstat != 0 && 2080 (nd->nd_flag & ND_NOMOREDATA)) { 2081 /* 2082 * If the Delegreturn failed, try again without 2083 * it. The server will Recall, as required. 2084 */ 2085 mbuf_freem(nd->nd_mrep); 2086 goto tryagain; 2087 } 2088 for (i = 0; i < (ret * 2); i++) { 2089 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2090 ND_NFSV4) { 2091 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2092 if (*(tl + 1)) 2093 nd->nd_flag |= ND_NOMOREDATA; 2094 } 2095 } 2096 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2097 } 2098 if (nd->nd_repstat && !error) 2099 error = nd->nd_repstat; 2100nfsmout: 2101 mbuf_freem(nd->nd_mrep); 2102 return (error); 2103} 2104 2105/* 2106 * Do an nfs rename rpc. 2107 */ 2108APPLESTATIC int 2109nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, 2110 vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, 2111 NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, 2112 int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) 2113{ 2114 u_int32_t *tl; 2115 struct nfsrv_descript nfsd, *nd = &nfsd; 2116 struct nfsmount *nmp; 2117 struct nfsnode *np; 2118 nfsattrbit_t attrbits; 2119 nfsv4stateid_t fdstateid, tdstateid; 2120 int error = 0, ret = 0, gottd = 0, gotfd = 0, i; 2121 2122 *fattrflagp = 0; 2123 *tattrflagp = 0; 2124 nmp = VFSTONFS(vnode_mount(fdvp)); 2125 if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) 2126 return (ENAMETOOLONG); 2127tryagain: 2128 if (NFSHASNFSV4(nmp) && ret == 0) { 2129 ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, 2130 &tdstateid, &gottd, p); 2131 if (gotfd && gottd) { 2132 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); 2133 } else if (gotfd) { 2134 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); 2135 } else if (gottd) { 2136 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); 2137 } 2138 if (gotfd) { 2139 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2140 *tl++ = fdstateid.seqid; 2141 *tl++ = fdstateid.other[0]; 2142 *tl++ = fdstateid.other[1]; 2143 *tl = fdstateid.other[2]; 2144 if (gottd) { 2145 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2146 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2147 np = VTONFS(tvp); 2148 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2149 np->n_fhp->nfh_len, 0); 2150 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2151 *tl = txdr_unsigned(NFSV4OP_DELEGRETURN); 2152 } 2153 } 2154 if (gottd) { 2155 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2156 *tl++ = tdstateid.seqid; 2157 *tl++ = tdstateid.other[0]; 2158 *tl++ = tdstateid.other[1]; 2159 *tl = tdstateid.other[2]; 2160 } 2161 if (ret > 0) { 2162 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2163 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2164 np = VTONFS(fdvp); 2165 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2166 np->n_fhp->nfh_len, 0); 2167 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2168 *tl = txdr_unsigned(NFSV4OP_SAVEFH); 2169 } 2170 } else { 2171 ret = 0; 2172 } 2173 if (ret == 0) 2174 NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); 2175 if (nd->nd_flag & ND_NFSV4) { 2176 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2177 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2178 NFSWCCATTR_ATTRBIT(&attrbits); 2179 (void) nfsrv_putattrbit(nd, &attrbits); 2180 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2181 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2182 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2183 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2184 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2185 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2186 (void) nfsrv_putattrbit(nd, &attrbits); 2187 nd->nd_flag |= ND_V4WCCATTR; 2188 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2189 *tl = txdr_unsigned(NFSV4OP_RENAME); 2190 } 2191 (void) nfsm_strtom(nd, fnameptr, fnamelen); 2192 if (!(nd->nd_flag & ND_NFSV4)) 2193 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2194 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2195 (void) nfsm_strtom(nd, tnameptr, tnamelen); 2196 error = nfscl_request(nd, fdvp, p, cred, fstuff); 2197 if (error) 2198 return (error); 2199 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2200 /* For NFSv4, parse out any Delereturn replies. */ 2201 if (ret > 0 && nd->nd_repstat != 0 && 2202 (nd->nd_flag & ND_NOMOREDATA)) { 2203 /* 2204 * If the Delegreturn failed, try again without 2205 * it. The server will Recall, as required. 2206 */ 2207 mbuf_freem(nd->nd_mrep); 2208 goto tryagain; 2209 } 2210 for (i = 0; i < (ret * 2); i++) { 2211 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2212 ND_NFSV4) { 2213 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2214 if (*(tl + 1)) { 2215 if (i == 0 && ret > 1) { 2216 /* 2217 * If the Delegreturn failed, try again 2218 * without it. The server will Recall, as 2219 * required. 2220 * If ret > 1, the first iteration of this 2221 * loop is the second DelegReturn result. 2222 */ 2223 mbuf_freem(nd->nd_mrep); 2224 goto tryagain; 2225 } else { 2226 nd->nd_flag |= ND_NOMOREDATA; 2227 } 2228 } 2229 } 2230 } 2231 /* Now, the first wcc attribute reply. */ 2232 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2233 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2234 if (*(tl + 1)) 2235 nd->nd_flag |= ND_NOMOREDATA; 2236 } 2237 error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, 2238 fstuff); 2239 /* and the second wcc attribute reply. */ 2240 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && 2241 !error) { 2242 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2243 if (*(tl + 1)) 2244 nd->nd_flag |= ND_NOMOREDATA; 2245 } 2246 if (!error) 2247 error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, 2248 NULL, tstuff); 2249 } 2250 if (nd->nd_repstat && !error) 2251 error = nd->nd_repstat; 2252nfsmout: 2253 mbuf_freem(nd->nd_mrep); 2254 return (error); 2255} 2256 2257/* 2258 * nfs hard link create rpc 2259 */ 2260APPLESTATIC int 2261nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, 2262 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2263 struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) 2264{ 2265 u_int32_t *tl; 2266 struct nfsrv_descript nfsd, *nd = &nfsd; 2267 nfsattrbit_t attrbits; 2268 int error = 0; 2269 2270 *attrflagp = 0; 2271 *dattrflagp = 0; 2272 if (namelen > NFS_MAXNAMLEN) 2273 return (ENAMETOOLONG); 2274 NFSCL_REQSTART(nd, NFSPROC_LINK, vp); 2275 if (nd->nd_flag & ND_NFSV4) { 2276 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2277 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2278 } 2279 (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, 2280 VTONFS(dvp)->n_fhp->nfh_len, 0); 2281 if (nd->nd_flag & ND_NFSV4) { 2282 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2283 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2284 NFSWCCATTR_ATTRBIT(&attrbits); 2285 (void) nfsrv_putattrbit(nd, &attrbits); 2286 nd->nd_flag |= ND_V4WCCATTR; 2287 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2288 *tl = txdr_unsigned(NFSV4OP_LINK); 2289 } 2290 (void) nfsm_strtom(nd, name, namelen); 2291 error = nfscl_request(nd, vp, p, cred, dstuff); 2292 if (error) 2293 return (error); 2294 if (nd->nd_flag & ND_NFSV3) { 2295 error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); 2296 if (!error) 2297 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2298 NULL, dstuff); 2299 } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2300 /* 2301 * First, parse out the PutFH and Getattr result. 2302 */ 2303 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2304 if (!(*(tl + 1))) 2305 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2306 if (*(tl + 1)) 2307 nd->nd_flag |= ND_NOMOREDATA; 2308 /* 2309 * Get the pre-op attributes. 2310 */ 2311 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2312 } 2313 if (nd->nd_repstat && !error) 2314 error = nd->nd_repstat; 2315nfsmout: 2316 mbuf_freem(nd->nd_mrep); 2317 return (error); 2318} 2319 2320/* 2321 * nfs symbolic link create rpc 2322 */ 2323APPLESTATIC int 2324nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, 2325 struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2326 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2327 int *dattrflagp, void *dstuff) 2328{ 2329 u_int32_t *tl; 2330 struct nfsrv_descript nfsd, *nd = &nfsd; 2331 struct nfsmount *nmp; 2332 int slen, error = 0; 2333 2334 *nfhpp = NULL; 2335 *attrflagp = 0; 2336 *dattrflagp = 0; 2337 nmp = VFSTONFS(vnode_mount(dvp)); 2338 slen = strlen(target); 2339 if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) 2340 return (ENAMETOOLONG); 2341 NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); 2342 if (nd->nd_flag & ND_NFSV4) { 2343 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2344 *tl = txdr_unsigned(NFLNK); 2345 (void) nfsm_strtom(nd, target, slen); 2346 } 2347 (void) nfsm_strtom(nd, name, namelen); 2348 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2349 nfscl_fillsattr(nd, vap, dvp, 0, 0); 2350 if (!(nd->nd_flag & ND_NFSV4)) 2351 (void) nfsm_strtom(nd, target, slen); 2352 if (nd->nd_flag & ND_NFSV2) 2353 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2354 error = nfscl_request(nd, dvp, p, cred, dstuff); 2355 if (error) 2356 return (error); 2357 if (nd->nd_flag & ND_NFSV4) 2358 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2359 if ((nd->nd_flag & ND_NFSV3) && !error) { 2360 if (!nd->nd_repstat) 2361 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2362 if (!error) 2363 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2364 NULL, dstuff); 2365 } 2366 if (nd->nd_repstat && !error) 2367 error = nd->nd_repstat; 2368 mbuf_freem(nd->nd_mrep); 2369 /* 2370 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2371 */ 2372 if (error == EEXIST) 2373 error = 0; 2374 return (error); 2375} 2376 2377/* 2378 * nfs make dir rpc 2379 */ 2380APPLESTATIC int 2381nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, 2382 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2383 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2384 int *dattrflagp, void *dstuff) 2385{ 2386 u_int32_t *tl; 2387 struct nfsrv_descript nfsd, *nd = &nfsd; 2388 nfsattrbit_t attrbits; 2389 int error = 0; 2390 2391 *nfhpp = NULL; 2392 *attrflagp = 0; 2393 *dattrflagp = 0; 2394 if (namelen > NFS_MAXNAMLEN) 2395 return (ENAMETOOLONG); 2396 NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); 2397 if (nd->nd_flag & ND_NFSV4) { 2398 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2399 *tl = txdr_unsigned(NFDIR); 2400 } 2401 (void) nfsm_strtom(nd, name, namelen); 2402 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2403 if (nd->nd_flag & ND_NFSV4) { 2404 NFSGETATTR_ATTRBIT(&attrbits); 2405 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2406 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2407 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2408 (void) nfsrv_putattrbit(nd, &attrbits); 2409 } 2410 error = nfscl_request(nd, dvp, p, cred, dstuff); 2411 if (error) 2412 return (error); 2413 if (nd->nd_flag & ND_NFSV4) 2414 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2415 if (!nd->nd_repstat && !error) { 2416 if (nd->nd_flag & ND_NFSV4) { 2417 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2418 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 2419 } 2420 if (!error) 2421 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2422 } 2423 if ((nd->nd_flag & ND_NFSV3) && !error) 2424 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2425 if (nd->nd_repstat && !error) 2426 error = nd->nd_repstat; 2427nfsmout: 2428 mbuf_freem(nd->nd_mrep); 2429 /* 2430 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry. 2431 */ 2432 if (error == EEXIST) 2433 error = 0; 2434 return (error); 2435} 2436 2437/* 2438 * nfs remove directory call 2439 */ 2440APPLESTATIC int 2441nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, 2442 NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) 2443{ 2444 struct nfsrv_descript nfsd, *nd = &nfsd; 2445 int error = 0; 2446 2447 *dattrflagp = 0; 2448 if (namelen > NFS_MAXNAMLEN) 2449 return (ENAMETOOLONG); 2450 NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); 2451 (void) nfsm_strtom(nd, name, namelen); 2452 error = nfscl_request(nd, dvp, p, cred, dstuff); 2453 if (error) 2454 return (error); 2455 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2456 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2457 if (nd->nd_repstat && !error) 2458 error = nd->nd_repstat; 2459 mbuf_freem(nd->nd_mrep); 2460 /* 2461 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2462 */ 2463 if (error == ENOENT) 2464 error = 0; 2465 return (error); 2466} 2467 2468/* 2469 * Readdir rpc. 2470 * Always returns with either uio_resid unchanged, if you are at the 2471 * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks 2472 * filled in. 2473 * I felt this would allow caching of directory blocks more easily 2474 * than returning a pertially filled block. 2475 * Directory offset cookies: 2476 * Oh my, what to do with them... 2477 * I can think of three ways to deal with them: 2478 * 1 - have the layer above these RPCs maintain a map between logical 2479 * directory byte offsets and the NFS directory offset cookies 2480 * 2 - pass the opaque directory offset cookies up into userland 2481 * and let the libc functions deal with them, via the system call 2482 * 3 - return them to userland in the "struct dirent", so future versions 2483 * of libc can use them and do whatever is necessary to amke things work 2484 * above these rpc calls, in the meantime 2485 * For now, I do #3 by "hiding" the directory offset cookies after the 2486 * d_name field in struct dirent. This is space inside d_reclen that 2487 * will be ignored by anything that doesn't know about them. 2488 * The directory offset cookies are filled in as the last 8 bytes of 2489 * each directory entry, after d_name. Someday, the userland libc 2490 * functions may be able to use these. In the meantime, it satisfies 2491 * OpenBSD's requirements for cookies being returned. 2492 * If expects the directory offset cookie for the read to be in uio_offset 2493 * and returns the one for the next entry after this directory block in 2494 * there, as well. 2495 */ 2496APPLESTATIC int 2497nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2498 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2499 int *eofp, void *stuff) 2500{ 2501 int len, left; 2502 struct dirent *dp = NULL; 2503 u_int32_t *tl; 2504 nfsquad_t cookie, ncookie; 2505 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2506 struct nfsnode *dnp = VTONFS(vp); 2507 struct nfsvattr nfsva; 2508 struct nfsrv_descript nfsd, *nd = &nfsd; 2509 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2510 int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; 2511 long dotfileid, dotdotfileid = 0; 2512 u_int32_t fakefileno = 0xffffffff, rderr; 2513 char *cp; 2514 nfsattrbit_t attrbits, dattrbits; 2515 u_int32_t *tl2 = NULL; 2516 size_t tresid; 2517 2518 KASSERT(uiop->uio_iovcnt == 1 && 2519 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2520 ("nfs readdirrpc bad uio")); 2521 2522 /* 2523 * There is no point in reading a lot more than uio_resid, however 2524 * adding one additional DIRBLKSIZ makes sense. Since uio_resid 2525 * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this 2526 * will never make readsize > nm_readdirsize. 2527 */ 2528 readsize = nmp->nm_readdirsize; 2529 if (readsize > uio_uio_resid(uiop)) 2530 readsize = uio_uio_resid(uiop) + DIRBLKSIZ; 2531 2532 *attrflagp = 0; 2533 if (eofp) 2534 *eofp = 0; 2535 tresid = uio_uio_resid(uiop); 2536 cookie.lval[0] = cookiep->nfsuquad[0]; 2537 cookie.lval[1] = cookiep->nfsuquad[1]; 2538 nd->nd_mrep = NULL; 2539 2540 /* 2541 * For NFSv4, first create the "." and ".." entries. 2542 */ 2543 if (NFSHASNFSV4(nmp)) { 2544 reqsize = 6 * NFSX_UNSIGNED; 2545 NFSGETATTR_ATTRBIT(&dattrbits); 2546 NFSZERO_ATTRBIT(&attrbits); 2547 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2548 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); 2549 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2550 NFSATTRBIT_MOUNTEDONFILEID)) { 2551 NFSSETBIT_ATTRBIT(&attrbits, 2552 NFSATTRBIT_MOUNTEDONFILEID); 2553 gotmnton = 1; 2554 } else { 2555 /* 2556 * Must fake it. Use the fileno, except when the 2557 * fsid is != to that of the directory. For that 2558 * case, generate a fake fileno that is not the same. 2559 */ 2560 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2561 gotmnton = 0; 2562 } 2563 2564 /* 2565 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2566 */ 2567 if (uiop->uio_offset == 0) { 2568#if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2569 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2570#else 2571 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2572#endif 2573 if (error) 2574 return (error); 2575 dotfileid = nfsva.na_fileid; 2576 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2577 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2578 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2579 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2580 (void) nfsrv_putattrbit(nd, &attrbits); 2581 error = nfscl_request(nd, vp, p, cred, stuff); 2582 if (error) 2583 return (error); 2584 if (nd->nd_repstat == 0) { 2585 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2586 len = fxdr_unsigned(int, *(tl + 2)); 2587 if (len > 0 && len <= NFSX_V4FHMAX) 2588 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2589 else 2590 error = EPERM; 2591 if (!error) { 2592 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2593 nfsva.na_mntonfileno = 0xffffffff; 2594 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2595 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2596 NULL, NULL, NULL, p, cred); 2597 if (error) { 2598 dotdotfileid = dotfileid; 2599 } else if (gotmnton) { 2600 if (nfsva.na_mntonfileno != 0xffffffff) 2601 dotdotfileid = nfsva.na_mntonfileno; 2602 else 2603 dotdotfileid = nfsva.na_fileid; 2604 } else if (nfsva.na_filesid[0] == 2605 dnp->n_vattr.na_filesid[0] && 2606 nfsva.na_filesid[1] == 2607 dnp->n_vattr.na_filesid[1]) { 2608 dotdotfileid = nfsva.na_fileid; 2609 } else { 2610 do { 2611 fakefileno--; 2612 } while (fakefileno == 2613 nfsva.na_fileid); 2614 dotdotfileid = fakefileno; 2615 } 2616 } 2617 } else if (nd->nd_repstat == NFSERR_NOENT) { 2618 /* 2619 * Lookupp returns NFSERR_NOENT when we are 2620 * at the root, so just use the current dir. 2621 */ 2622 nd->nd_repstat = 0; 2623 dotdotfileid = dotfileid; 2624 } else { 2625 error = nd->nd_repstat; 2626 } 2627 mbuf_freem(nd->nd_mrep); 2628 if (error) 2629 return (error); 2630 nd->nd_mrep = NULL; 2631 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2632 dp->d_type = DT_DIR; 2633 dp->d_fileno = dotfileid; 2634 dp->d_namlen = 1; 2635 dp->d_name[0] = '.'; 2636 dp->d_name[1] = '\0'; 2637 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2638 /* 2639 * Just make these offset cookie 0. 2640 */ 2641 tl = (u_int32_t *)&dp->d_name[4]; 2642 *tl++ = 0; 2643 *tl = 0; 2644 blksiz += dp->d_reclen; 2645 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2646 uiop->uio_offset += dp->d_reclen; 2647 uio_iov_base_add(uiop, dp->d_reclen); 2648 uio_iov_len_add(uiop, -(dp->d_reclen)); 2649 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2650 dp->d_type = DT_DIR; 2651 dp->d_fileno = dotdotfileid; 2652 dp->d_namlen = 2; 2653 dp->d_name[0] = '.'; 2654 dp->d_name[1] = '.'; 2655 dp->d_name[2] = '\0'; 2656 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2657 /* 2658 * Just make these offset cookie 0. 2659 */ 2660 tl = (u_int32_t *)&dp->d_name[4]; 2661 *tl++ = 0; 2662 *tl = 0; 2663 blksiz += dp->d_reclen; 2664 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2665 uiop->uio_offset += dp->d_reclen; 2666 uio_iov_base_add(uiop, dp->d_reclen); 2667 uio_iov_len_add(uiop, -(dp->d_reclen)); 2668 } 2669 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); 2670 } else { 2671 reqsize = 5 * NFSX_UNSIGNED; 2672 } 2673 2674 2675 /* 2676 * Loop around doing readdir rpc's of size readsize. 2677 * The stopping criteria is EOF or buffer full. 2678 */ 2679 while (more_dirs && bigenough) { 2680 *attrflagp = 0; 2681 NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); 2682 if (nd->nd_flag & ND_NFSV2) { 2683 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2684 *tl++ = cookie.lval[1]; 2685 *tl = txdr_unsigned(readsize); 2686 } else { 2687 NFSM_BUILD(tl, u_int32_t *, reqsize); 2688 *tl++ = cookie.lval[0]; 2689 *tl++ = cookie.lval[1]; 2690 if (cookie.qval == 0) { 2691 *tl++ = 0; 2692 *tl++ = 0; 2693 } else { 2694 NFSLOCKNODE(dnp); 2695 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2696 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2697 NFSUNLOCKNODE(dnp); 2698 } 2699 if (nd->nd_flag & ND_NFSV4) { 2700 *tl++ = txdr_unsigned(readsize); 2701 *tl = txdr_unsigned(readsize); 2702 (void) nfsrv_putattrbit(nd, &attrbits); 2703 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2704 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2705 (void) nfsrv_putattrbit(nd, &dattrbits); 2706 } else { 2707 *tl = txdr_unsigned(readsize); 2708 } 2709 } 2710 error = nfscl_request(nd, vp, p, cred, stuff); 2711 if (error) 2712 return (error); 2713 if (!(nd->nd_flag & ND_NFSV2)) { 2714 if (nd->nd_flag & ND_NFSV3) 2715 error = nfscl_postop_attr(nd, nap, attrflagp, 2716 stuff); 2717 if (!nd->nd_repstat && !error) { 2718 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 2719 NFSLOCKNODE(dnp); 2720 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2721 dnp->n_cookieverf.nfsuquad[1] = *tl; 2722 NFSUNLOCKNODE(dnp); 2723 } 2724 } 2725 if (nd->nd_repstat || error) { 2726 if (!error) 2727 error = nd->nd_repstat; 2728 goto nfsmout; 2729 } 2730 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2731 more_dirs = fxdr_unsigned(int, *tl); 2732 if (!more_dirs) 2733 tryformoredirs = 0; 2734 2735 /* loop thru the dir entries, doctoring them to 4bsd form */ 2736 while (more_dirs && bigenough) { 2737 if (nd->nd_flag & ND_NFSV4) { 2738 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2739 ncookie.lval[0] = *tl++; 2740 ncookie.lval[1] = *tl++; 2741 len = fxdr_unsigned(int, *tl); 2742 } else if (nd->nd_flag & ND_NFSV3) { 2743 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2744 nfsva.na_fileid = fxdr_hyper(tl); 2745 tl += 2; 2746 len = fxdr_unsigned(int, *tl); 2747 } else { 2748 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2749 nfsva.na_fileid = 2750 fxdr_unsigned(long, *tl++); 2751 len = fxdr_unsigned(int, *tl); 2752 } 2753 if (len <= 0 || len > NFS_MAXNAMLEN) { 2754 error = EBADRPC; 2755 goto nfsmout; 2756 } 2757 tlen = NFSM_RNDUP(len); 2758 if (tlen == len) 2759 tlen += 4; /* To ensure null termination */ 2760 left = DIRBLKSIZ - blksiz; 2761 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > left) { 2762 dp->d_reclen += left; 2763 uio_iov_base_add(uiop, left); 2764 uio_iov_len_add(uiop, -(left)); 2765 uio_uio_resid_add(uiop, -(left)); 2766 uiop->uio_offset += left; 2767 blksiz = 0; 2768 } 2769 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 2770 bigenough = 0; 2771 if (bigenough) { 2772 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2773 dp->d_namlen = len; 2774 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 2775 dp->d_type = DT_UNKNOWN; 2776 blksiz += dp->d_reclen; 2777 if (blksiz == DIRBLKSIZ) 2778 blksiz = 0; 2779 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 2780 uiop->uio_offset += DIRHDSIZ; 2781 uio_iov_base_add(uiop, DIRHDSIZ); 2782 uio_iov_len_add(uiop, -(DIRHDSIZ)); 2783 error = nfsm_mbufuio(nd, uiop, len); 2784 if (error) 2785 goto nfsmout; 2786 cp = CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2787 tlen -= len; 2788 *cp = '\0'; /* null terminate */ 2789 cp += tlen; /* points to cookie storage */ 2790 tl2 = (u_int32_t *)cp; 2791 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 2792 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 2793 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 2794 uiop->uio_offset += (tlen + NFSX_HYPER); 2795 } else { 2796 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2797 if (error) 2798 goto nfsmout; 2799 } 2800 if (nd->nd_flag & ND_NFSV4) { 2801 rderr = 0; 2802 nfsva.na_mntonfileno = 0xffffffff; 2803 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2804 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2805 NULL, NULL, &rderr, p, cred); 2806 if (error) 2807 goto nfsmout; 2808 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2809 } else if (nd->nd_flag & ND_NFSV3) { 2810 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2811 ncookie.lval[0] = *tl++; 2812 ncookie.lval[1] = *tl++; 2813 } else { 2814 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2815 ncookie.lval[0] = 0; 2816 ncookie.lval[1] = *tl++; 2817 } 2818 if (bigenough) { 2819 if (nd->nd_flag & ND_NFSV4) { 2820 if (rderr) { 2821 dp->d_fileno = 0; 2822 } else { 2823 if (gotmnton) { 2824 if (nfsva.na_mntonfileno != 0xffffffff) 2825 dp->d_fileno = nfsva.na_mntonfileno; 2826 else 2827 dp->d_fileno = nfsva.na_fileid; 2828 } else if (nfsva.na_filesid[0] == 2829 dnp->n_vattr.na_filesid[0] && 2830 nfsva.na_filesid[1] == 2831 dnp->n_vattr.na_filesid[1]) { 2832 dp->d_fileno = nfsva.na_fileid; 2833 } else { 2834 do { 2835 fakefileno--; 2836 } while (fakefileno == 2837 nfsva.na_fileid); 2838 dp->d_fileno = fakefileno; 2839 } 2840 dp->d_type = vtonfs_dtype(nfsva.na_type); 2841 } 2842 } else { 2843 dp->d_fileno = nfsva.na_fileid; 2844 } 2845 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 2846 ncookie.lval[0]; 2847 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 2848 ncookie.lval[1]; 2849 } 2850 more_dirs = fxdr_unsigned(int, *tl); 2851 } 2852 /* 2853 * If at end of rpc data, get the eof boolean 2854 */ 2855 if (!more_dirs) { 2856 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2857 eof = fxdr_unsigned(int, *tl); 2858 if (tryformoredirs) 2859 more_dirs = !eof; 2860 if (nd->nd_flag & ND_NFSV4) { 2861 error = nfscl_postop_attr(nd, nap, attrflagp, 2862 stuff); 2863 if (error) 2864 goto nfsmout; 2865 } 2866 } 2867 mbuf_freem(nd->nd_mrep); 2868 nd->nd_mrep = NULL; 2869 } 2870 /* 2871 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 2872 * by increasing d_reclen for the last record. 2873 */ 2874 if (blksiz > 0) { 2875 left = DIRBLKSIZ - blksiz; 2876 dp->d_reclen += left; 2877 uio_iov_base_add(uiop, left); 2878 uio_iov_len_add(uiop, -(left)); 2879 uio_uio_resid_add(uiop, -(left)); 2880 uiop->uio_offset += left; 2881 } 2882 2883 /* 2884 * If returning no data, assume end of file. 2885 * If not bigenough, return not end of file, since you aren't 2886 * returning all the data 2887 * Otherwise, return the eof flag from the server. 2888 */ 2889 if (eofp) { 2890 if (tresid == ((size_t)(uio_uio_resid(uiop)))) 2891 *eofp = 1; 2892 else if (!bigenough) 2893 *eofp = 0; 2894 else 2895 *eofp = eof; 2896 } 2897 2898 /* 2899 * Add extra empty records to any remaining DIRBLKSIZ chunks. 2900 */ 2901 while (uio_uio_resid(uiop) > 0 && ((size_t)(uio_uio_resid(uiop))) != tresid) { 2902 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2903 dp->d_type = DT_UNKNOWN; 2904 dp->d_fileno = 0; 2905 dp->d_namlen = 0; 2906 dp->d_name[0] = '\0'; 2907 tl = (u_int32_t *)&dp->d_name[4]; 2908 *tl++ = cookie.lval[0]; 2909 *tl = cookie.lval[1]; 2910 dp->d_reclen = DIRBLKSIZ; 2911 uio_iov_base_add(uiop, DIRBLKSIZ); 2912 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 2913 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 2914 uiop->uio_offset += DIRBLKSIZ; 2915 } 2916 2917nfsmout: 2918 if (nd->nd_mrep != NULL) 2919 mbuf_freem(nd->nd_mrep); 2920 return (error); 2921} 2922 2923#ifndef APPLE 2924/* 2925 * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). 2926 * (Also used for NFS V4 when mount flag set.) 2927 * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) 2928 */ 2929APPLESTATIC int 2930nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2931 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2932 int *eofp, void *stuff) 2933{ 2934 int len, left; 2935 struct dirent *dp = NULL; 2936 u_int32_t *tl; 2937 vnode_t newvp = NULLVP; 2938 struct nfsrv_descript nfsd, *nd = &nfsd; 2939 struct nameidata nami, *ndp = &nami; 2940 struct componentname *cnp = &ndp->ni_cnd; 2941 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2942 struct nfsnode *dnp = VTONFS(vp), *np; 2943 struct nfsvattr nfsva; 2944 struct nfsfh *nfhp; 2945 nfsquad_t cookie, ncookie; 2946 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2947 int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; 2948 int isdotdot = 0, unlocknewvp = 0; 2949 long dotfileid, dotdotfileid = 0, fileno = 0; 2950 char *cp; 2951 nfsattrbit_t attrbits, dattrbits; 2952 size_t tresid; 2953 u_int32_t *tl2 = NULL, fakefileno = 0xffffffff, rderr; 2954 struct timespec dctime; 2955 2956 KASSERT(uiop->uio_iovcnt == 1 && 2957 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2958 ("nfs readdirplusrpc bad uio")); 2959 timespecclear(&dctime); 2960 *attrflagp = 0; 2961 if (eofp != NULL) 2962 *eofp = 0; 2963 ndp->ni_dvp = vp; 2964 nd->nd_mrep = NULL; 2965 cookie.lval[0] = cookiep->nfsuquad[0]; 2966 cookie.lval[1] = cookiep->nfsuquad[1]; 2967 tresid = uio_uio_resid(uiop); 2968 2969 /* 2970 * For NFSv4, first create the "." and ".." entries. 2971 */ 2972 if (NFSHASNFSV4(nmp)) { 2973 NFSGETATTR_ATTRBIT(&dattrbits); 2974 NFSZERO_ATTRBIT(&attrbits); 2975 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2976 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2977 NFSATTRBIT_MOUNTEDONFILEID)) { 2978 NFSSETBIT_ATTRBIT(&attrbits, 2979 NFSATTRBIT_MOUNTEDONFILEID); 2980 gotmnton = 1; 2981 } else { 2982 /* 2983 * Must fake it. Use the fileno, except when the 2984 * fsid is != to that of the directory. For that 2985 * case, generate a fake fileno that is not the same. 2986 */ 2987 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2988 gotmnton = 0; 2989 } 2990 2991 /* 2992 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2993 */ 2994 if (uiop->uio_offset == 0) { 2995#if defined(__FreeBSD_version) && __FreeBSD_version >= 800000 2996 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred); 2997#else 2998 error = VOP_GETATTR(vp, &nfsva.na_vattr, cred, p); 2999#endif 3000 if (error) 3001 return (error); 3002 dctime = nfsva.na_ctime; 3003 dotfileid = nfsva.na_fileid; 3004 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 3005 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3006 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 3007 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3008 (void) nfsrv_putattrbit(nd, &attrbits); 3009 error = nfscl_request(nd, vp, p, cred, stuff); 3010 if (error) 3011 return (error); 3012 if (nd->nd_repstat == 0) { 3013 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3014 len = fxdr_unsigned(int, *(tl + 2)); 3015 if (len > 0 && len <= NFSX_V4FHMAX) 3016 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3017 else 3018 error = EPERM; 3019 if (!error) { 3020 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 3021 nfsva.na_mntonfileno = 0xffffffff; 3022 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 3023 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3024 NULL, NULL, NULL, p, cred); 3025 if (error) { 3026 dotdotfileid = dotfileid; 3027 } else if (gotmnton) { 3028 if (nfsva.na_mntonfileno != 0xffffffff) 3029 dotdotfileid = nfsva.na_mntonfileno; 3030 else 3031 dotdotfileid = nfsva.na_fileid; 3032 } else if (nfsva.na_filesid[0] == 3033 dnp->n_vattr.na_filesid[0] && 3034 nfsva.na_filesid[1] == 3035 dnp->n_vattr.na_filesid[1]) { 3036 dotdotfileid = nfsva.na_fileid; 3037 } else { 3038 do { 3039 fakefileno--; 3040 } while (fakefileno == 3041 nfsva.na_fileid); 3042 dotdotfileid = fakefileno; 3043 } 3044 } 3045 } else if (nd->nd_repstat == NFSERR_NOENT) { 3046 /* 3047 * Lookupp returns NFSERR_NOENT when we are 3048 * at the root, so just use the current dir. 3049 */ 3050 nd->nd_repstat = 0; 3051 dotdotfileid = dotfileid; 3052 } else { 3053 error = nd->nd_repstat; 3054 } 3055 mbuf_freem(nd->nd_mrep); 3056 if (error) 3057 return (error); 3058 nd->nd_mrep = NULL; 3059 dp = (struct dirent *)uio_iov_base(uiop); 3060 dp->d_type = DT_DIR; 3061 dp->d_fileno = dotfileid; 3062 dp->d_namlen = 1; 3063 dp->d_name[0] = '.'; 3064 dp->d_name[1] = '\0'; 3065 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3066 /* 3067 * Just make these offset cookie 0. 3068 */ 3069 tl = (u_int32_t *)&dp->d_name[4]; 3070 *tl++ = 0; 3071 *tl = 0; 3072 blksiz += dp->d_reclen; 3073 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3074 uiop->uio_offset += dp->d_reclen; 3075 uio_iov_base_add(uiop, dp->d_reclen); 3076 uio_iov_len_add(uiop, -(dp->d_reclen)); 3077 dp = (struct dirent *)uio_iov_base(uiop); 3078 dp->d_type = DT_DIR; 3079 dp->d_fileno = dotdotfileid; 3080 dp->d_namlen = 2; 3081 dp->d_name[0] = '.'; 3082 dp->d_name[1] = '.'; 3083 dp->d_name[2] = '\0'; 3084 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3085 /* 3086 * Just make these offset cookie 0. 3087 */ 3088 tl = (u_int32_t *)&dp->d_name[4]; 3089 *tl++ = 0; 3090 *tl = 0; 3091 blksiz += dp->d_reclen; 3092 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3093 uiop->uio_offset += dp->d_reclen; 3094 uio_iov_base_add(uiop, dp->d_reclen); 3095 uio_iov_len_add(uiop, -(dp->d_reclen)); 3096 } 3097 NFSREADDIRPLUS_ATTRBIT(&attrbits); 3098 if (gotmnton) 3099 NFSSETBIT_ATTRBIT(&attrbits, 3100 NFSATTRBIT_MOUNTEDONFILEID); 3101 } 3102 3103 /* 3104 * Loop around doing readdir rpc's of size nm_readdirsize. 3105 * The stopping criteria is EOF or buffer full. 3106 */ 3107 while (more_dirs && bigenough) { 3108 *attrflagp = 0; 3109 NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); 3110 NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 3111 *tl++ = cookie.lval[0]; 3112 *tl++ = cookie.lval[1]; 3113 if (cookie.qval == 0) { 3114 *tl++ = 0; 3115 *tl++ = 0; 3116 } else { 3117 NFSLOCKNODE(dnp); 3118 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 3119 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 3120 NFSUNLOCKNODE(dnp); 3121 } 3122 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 3123 *tl = txdr_unsigned(nmp->nm_readdirsize); 3124 if (nd->nd_flag & ND_NFSV4) { 3125 (void) nfsrv_putattrbit(nd, &attrbits); 3126 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3127 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3128 (void) nfsrv_putattrbit(nd, &dattrbits); 3129 } 3130 error = nfscl_request(nd, vp, p, cred, stuff); 3131 if (error) 3132 return (error); 3133 if (nd->nd_flag & ND_NFSV3) 3134 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3135 if (nd->nd_repstat || error) { 3136 if (!error) 3137 error = nd->nd_repstat; 3138 goto nfsmout; 3139 } 3140 if ((nd->nd_flag & ND_NFSV3) != 0 && *attrflagp != 0) 3141 dctime = nap->na_ctime; 3142 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3143 NFSLOCKNODE(dnp); 3144 dnp->n_cookieverf.nfsuquad[0] = *tl++; 3145 dnp->n_cookieverf.nfsuquad[1] = *tl++; 3146 NFSUNLOCKNODE(dnp); 3147 more_dirs = fxdr_unsigned(int, *tl); 3148 if (!more_dirs) 3149 tryformoredirs = 0; 3150 3151 /* loop thru the dir entries, doctoring them to 4bsd form */ 3152 while (more_dirs && bigenough) { 3153 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3154 if (nd->nd_flag & ND_NFSV4) { 3155 ncookie.lval[0] = *tl++; 3156 ncookie.lval[1] = *tl++; 3157 } else { 3158 fileno = fxdr_unsigned(long, *++tl); 3159 tl++; 3160 } 3161 len = fxdr_unsigned(int, *tl); 3162 if (len <= 0 || len > NFS_MAXNAMLEN) { 3163 error = EBADRPC; 3164 goto nfsmout; 3165 } 3166 tlen = NFSM_RNDUP(len); 3167 if (tlen == len) 3168 tlen += 4; /* To ensure null termination */ 3169 left = DIRBLKSIZ - blksiz; 3170 if ((tlen + DIRHDSIZ + NFSX_HYPER) > left) { 3171 dp->d_reclen += left; 3172 uio_iov_base_add(uiop, left); 3173 uio_iov_len_add(uiop, -(left)); 3174 uio_uio_resid_add(uiop, -(left)); 3175 uiop->uio_offset += left; 3176 blksiz = 0; 3177 } 3178 if ((tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 3179 bigenough = 0; 3180 if (bigenough) { 3181 dp = (struct dirent *)uio_iov_base(uiop); 3182 dp->d_namlen = len; 3183 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 3184 dp->d_type = DT_UNKNOWN; 3185 blksiz += dp->d_reclen; 3186 if (blksiz == DIRBLKSIZ) 3187 blksiz = 0; 3188 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 3189 uiop->uio_offset += DIRHDSIZ; 3190 uio_iov_base_add(uiop, DIRHDSIZ); 3191 uio_iov_len_add(uiop, -(DIRHDSIZ)); 3192 cnp->cn_nameptr = uio_iov_base(uiop); 3193 cnp->cn_namelen = len; 3194 NFSCNHASHZERO(cnp); 3195 error = nfsm_mbufuio(nd, uiop, len); 3196 if (error) 3197 goto nfsmout; 3198 cp = uio_iov_base(uiop); 3199 tlen -= len; 3200 *cp = '\0'; 3201 cp += tlen; /* points to cookie storage */ 3202 tl2 = (u_int32_t *)cp; 3203 if (len == 2 && cnp->cn_nameptr[0] == '.' && 3204 cnp->cn_nameptr[1] == '.') 3205 isdotdot = 1; 3206 else 3207 isdotdot = 0; 3208 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 3209 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 3210 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 3211 uiop->uio_offset += (tlen + NFSX_HYPER); 3212 } else { 3213 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3214 if (error) 3215 goto nfsmout; 3216 } 3217 nfhp = NULL; 3218 if (nd->nd_flag & ND_NFSV3) { 3219 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3220 ncookie.lval[0] = *tl++; 3221 ncookie.lval[1] = *tl++; 3222 attrflag = fxdr_unsigned(int, *tl); 3223 if (attrflag) { 3224 error = nfsm_loadattr(nd, &nfsva); 3225 if (error) 3226 goto nfsmout; 3227 } 3228 NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); 3229 if (*tl) { 3230 error = nfsm_getfh(nd, &nfhp); 3231 if (error) 3232 goto nfsmout; 3233 } 3234 if (!attrflag && nfhp != NULL) { 3235 FREE((caddr_t)nfhp, M_NFSFH); 3236 nfhp = NULL; 3237 } 3238 } else { 3239 rderr = 0; 3240 nfsva.na_mntonfileno = 0xffffffff; 3241 error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, 3242 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3243 NULL, NULL, &rderr, p, cred); 3244 if (error) 3245 goto nfsmout; 3246 } 3247 3248 if (bigenough) { 3249 if (nd->nd_flag & ND_NFSV4) { 3250 if (rderr) { 3251 dp->d_fileno = 0; 3252 } else if (gotmnton) { 3253 if (nfsva.na_mntonfileno != 0xffffffff) 3254 dp->d_fileno = nfsva.na_mntonfileno; 3255 else 3256 dp->d_fileno = nfsva.na_fileid; 3257 } else if (nfsva.na_filesid[0] == 3258 dnp->n_vattr.na_filesid[0] && 3259 nfsva.na_filesid[1] == 3260 dnp->n_vattr.na_filesid[1]) { 3261 dp->d_fileno = nfsva.na_fileid; 3262 } else { 3263 do { 3264 fakefileno--; 3265 } while (fakefileno == 3266 nfsva.na_fileid); 3267 dp->d_fileno = fakefileno; 3268 } 3269 } else { 3270 dp->d_fileno = fileno; 3271 } 3272 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 3273 ncookie.lval[0]; 3274 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 3275 ncookie.lval[1]; 3276 3277 if (nfhp != NULL) { 3278 if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, 3279 dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { 3280 VREF(vp); 3281 newvp = vp; 3282 unlocknewvp = 0; 3283 FREE((caddr_t)nfhp, M_NFSFH); 3284 np = dnp; 3285 } else if (isdotdot != 0) { 3286 /* 3287 * Skip doing a nfscl_nget() call for "..". 3288 * There's a race between acquiring the nfs 3289 * node here and lookups that look for the 3290 * directory being read (in the parent). 3291 * It would try to get a lock on ".." here, 3292 * owning the lock on the directory being 3293 * read. Lookup will hold the lock on ".." 3294 * and try to acquire the lock on the 3295 * directory being read. 3296 * If the directory is unlocked/relocked, 3297 * then there is a LOR with the buflock 3298 * vp is relocked. 3299 */ 3300 free(nfhp, M_NFSFH); 3301 } else { 3302 error = nfscl_nget(vnode_mount(vp), vp, 3303 nfhp, cnp, p, &np, NULL, LK_EXCLUSIVE); 3304 if (!error) { 3305 newvp = NFSTOV(np); 3306 unlocknewvp = 1; 3307 } 3308 } 3309 nfhp = NULL; 3310 if (newvp != NULLVP) { 3311 error = nfscl_loadattrcache(&newvp, 3312 &nfsva, NULL, NULL, 0, 0); 3313 if (error) { 3314 if (unlocknewvp) 3315 vput(newvp); 3316 else 3317 vrele(newvp); 3318 goto nfsmout; 3319 } 3320 dp->d_type = 3321 vtonfs_dtype(np->n_vattr.na_type); 3322 ndp->ni_vp = newvp; 3323 NFSCNHASH(cnp, HASHINIT); 3324 if (cnp->cn_namelen <= NCHNAMLEN && 3325 (newvp->v_type != VDIR || 3326 dctime.tv_sec != 0)) { 3327 cache_enter_time(ndp->ni_dvp, 3328 ndp->ni_vp, cnp, 3329 &nfsva.na_ctime, 3330 newvp->v_type != VDIR ? NULL : 3331 &dctime); 3332 } 3333 if (unlocknewvp) 3334 vput(newvp); 3335 else 3336 vrele(newvp); 3337 newvp = NULLVP; 3338 } 3339 } 3340 } else if (nfhp != NULL) { 3341 FREE((caddr_t)nfhp, M_NFSFH); 3342 } 3343 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3344 more_dirs = fxdr_unsigned(int, *tl); 3345 } 3346 /* 3347 * If at end of rpc data, get the eof boolean 3348 */ 3349 if (!more_dirs) { 3350 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3351 eof = fxdr_unsigned(int, *tl); 3352 if (tryformoredirs) 3353 more_dirs = !eof; 3354 if (nd->nd_flag & ND_NFSV4) { 3355 error = nfscl_postop_attr(nd, nap, attrflagp, 3356 stuff); 3357 if (error) 3358 goto nfsmout; 3359 } 3360 } 3361 mbuf_freem(nd->nd_mrep); 3362 nd->nd_mrep = NULL; 3363 } 3364 /* 3365 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 3366 * by increasing d_reclen for the last record. 3367 */ 3368 if (blksiz > 0) { 3369 left = DIRBLKSIZ - blksiz; 3370 dp->d_reclen += left; 3371 uio_iov_base_add(uiop, left); 3372 uio_iov_len_add(uiop, -(left)); 3373 uio_uio_resid_add(uiop, -(left)); 3374 uiop->uio_offset += left; 3375 } 3376 3377 /* 3378 * If returning no data, assume end of file. 3379 * If not bigenough, return not end of file, since you aren't 3380 * returning all the data 3381 * Otherwise, return the eof flag from the server. 3382 */ 3383 if (eofp != NULL) { 3384 if (tresid == uio_uio_resid(uiop)) 3385 *eofp = 1; 3386 else if (!bigenough) 3387 *eofp = 0; 3388 else 3389 *eofp = eof; 3390 } 3391 3392 /* 3393 * Add extra empty records to any remaining DIRBLKSIZ chunks. 3394 */ 3395 while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { 3396 dp = (struct dirent *)uio_iov_base(uiop); 3397 dp->d_type = DT_UNKNOWN; 3398 dp->d_fileno = 0; 3399 dp->d_namlen = 0; 3400 dp->d_name[0] = '\0'; 3401 tl = (u_int32_t *)&dp->d_name[4]; 3402 *tl++ = cookie.lval[0]; 3403 *tl = cookie.lval[1]; 3404 dp->d_reclen = DIRBLKSIZ; 3405 uio_iov_base_add(uiop, DIRBLKSIZ); 3406 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 3407 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 3408 uiop->uio_offset += DIRBLKSIZ; 3409 } 3410 3411nfsmout: 3412 if (nd->nd_mrep != NULL) 3413 mbuf_freem(nd->nd_mrep); 3414 return (error); 3415} 3416#endif /* !APPLE */ 3417 3418/* 3419 * Nfs commit rpc 3420 */ 3421APPLESTATIC int 3422nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, 3423 NFSPROC_T *p, u_char *verfp, struct nfsvattr *nap, int *attrflagp, 3424 void *stuff) 3425{ 3426 u_int32_t *tl; 3427 struct nfsrv_descript nfsd, *nd = &nfsd; 3428 nfsattrbit_t attrbits; 3429 int error; 3430 3431 *attrflagp = 0; 3432 NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); 3433 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3434 txdr_hyper(offset, tl); 3435 tl += 2; 3436 *tl = txdr_unsigned(cnt); 3437 if (nd->nd_flag & ND_NFSV4) { 3438 /* 3439 * And do a Getattr op. 3440 */ 3441 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3442 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3443 NFSGETATTR_ATTRBIT(&attrbits); 3444 (void) nfsrv_putattrbit(nd, &attrbits); 3445 } 3446 error = nfscl_request(nd, vp, p, cred, stuff); 3447 if (error) 3448 return (error); 3449 error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); 3450 if (!error && !nd->nd_repstat) { 3451 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3452 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 3453 if (nd->nd_flag & ND_NFSV4) 3454 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3455 } 3456nfsmout: 3457 if (!error && nd->nd_repstat) 3458 error = nd->nd_repstat; 3459 mbuf_freem(nd->nd_mrep); 3460 return (error); 3461} 3462 3463/* 3464 * NFS byte range lock rpc. 3465 * (Mostly just calls one of the three lower level RPC routines.) 3466 */ 3467APPLESTATIC int 3468nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, 3469 int reclaim, struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3470{ 3471 struct nfscllockowner *lp; 3472 struct nfsclclient *clp; 3473 struct nfsfh *nfhp; 3474 struct nfsrv_descript nfsd, *nd = &nfsd; 3475 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 3476 u_int64_t off, len; 3477 off_t start, end; 3478 u_int32_t clidrev = 0; 3479 int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; 3480 int callcnt, dorpc; 3481 3482 /* 3483 * Convert the flock structure into a start and end and do POSIX 3484 * bounds checking. 3485 */ 3486 switch (fl->l_whence) { 3487 case SEEK_SET: 3488 case SEEK_CUR: 3489 /* 3490 * Caller is responsible for adding any necessary offset 3491 * when SEEK_CUR is used. 3492 */ 3493 start = fl->l_start; 3494 off = fl->l_start; 3495 break; 3496 case SEEK_END: 3497 start = size + fl->l_start; 3498 off = size + fl->l_start; 3499 break; 3500 default: 3501 return (EINVAL); 3502 }; 3503 if (start < 0) 3504 return (EINVAL); 3505 if (fl->l_len != 0) { 3506 end = start + fl->l_len - 1; 3507 if (end < start) 3508 return (EINVAL); 3509 } 3510 3511 len = fl->l_len; 3512 if (len == 0) 3513 len = NFS64BITSSET; 3514 retrycnt = 0; 3515 do { 3516 nd->nd_repstat = 0; 3517 if (op == F_GETLK) { 3518 error = nfscl_getcl(vp, cred, p, &clp); 3519 if (error) 3520 return (error); 3521 error = nfscl_lockt(vp, clp, off, len, fl, p, id, flags); 3522 if (!error) { 3523 clidrev = clp->nfsc_clientidrev; 3524 error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, 3525 p, id, flags); 3526 } else if (error == -1) { 3527 error = 0; 3528 } 3529 nfscl_clientrelease(clp); 3530 } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { 3531 /* 3532 * We must loop around for all lockowner cases. 3533 */ 3534 callcnt = 0; 3535 error = nfscl_getcl(vp, cred, p, &clp); 3536 if (error) 3537 return (error); 3538 do { 3539 error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, 3540 clp, id, flags, &lp, &dorpc); 3541 /* 3542 * If it returns a NULL lp, we're done. 3543 */ 3544 if (lp == NULL) { 3545 if (callcnt == 0) 3546 nfscl_clientrelease(clp); 3547 else 3548 nfscl_releasealllocks(clp, vp, p, id, flags); 3549 return (error); 3550 } 3551 if (nmp->nm_clp != NULL) 3552 clidrev = nmp->nm_clp->nfsc_clientidrev; 3553 else 3554 clidrev = 0; 3555 /* 3556 * If the server doesn't support Posix lock semantics, 3557 * only allow locks on the entire file, since it won't 3558 * handle overlapping byte ranges. 3559 * There might still be a problem when a lock 3560 * upgrade/downgrade (read<->write) occurs, since the 3561 * server "might" expect an unlock first? 3562 */ 3563 if (dorpc && (lp->nfsl_open->nfso_posixlock || 3564 (off == 0 && len == NFS64BITSSET))) { 3565 /* 3566 * Since the lock records will go away, we must 3567 * wait for grace and delay here. 3568 */ 3569 do { 3570 error = nfsrpc_locku(nd, nmp, lp, off, len, 3571 NFSV4LOCKT_READ, cred, p, 0); 3572 if ((nd->nd_repstat == NFSERR_GRACE || 3573 nd->nd_repstat == NFSERR_DELAY) && 3574 error == 0) 3575 (void) nfs_catnap(PZERO, (int)nd->nd_repstat, 3576 "nfs_advlock"); 3577 } while ((nd->nd_repstat == NFSERR_GRACE || 3578 nd->nd_repstat == NFSERR_DELAY) && error == 0); 3579 } 3580 callcnt++; 3581 } while (error == 0 && nd->nd_repstat == 0); 3582 nfscl_releasealllocks(clp, vp, p, id, flags); 3583 } else if (op == F_SETLK) { 3584 error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, 3585 NULL, 0, id, flags, NULL, NULL, &lp, &newone, &donelocally); 3586 if (error || donelocally) { 3587 return (error); 3588 } 3589 if (nmp->nm_clp != NULL) 3590 clidrev = nmp->nm_clp->nfsc_clientidrev; 3591 else 3592 clidrev = 0; 3593 nfhp = VTONFS(vp)->n_fhp; 3594 if (!lp->nfsl_open->nfso_posixlock && 3595 (off != 0 || len != NFS64BITSSET)) { 3596 error = EINVAL; 3597 } else { 3598 error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, 3599 nfhp->nfh_len, lp, newone, reclaim, off, 3600 len, fl->l_type, cred, p, 0); 3601 } 3602 if (!error) 3603 error = nd->nd_repstat; 3604 nfscl_lockrelease(lp, error, newone); 3605 } else { 3606 error = EINVAL; 3607 } 3608 if (!error) 3609 error = nd->nd_repstat; 3610 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 3611 error == NFSERR_STALEDONTRECOVER || 3612 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY) { 3613 (void) nfs_catnap(PZERO, error, "nfs_advlock"); 3614 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 3615 && clidrev != 0) { 3616 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 3617 retrycnt++; 3618 } 3619 } while (error == NFSERR_GRACE || 3620 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || 3621 error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || 3622 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 3623 expireret == 0 && clidrev != 0 && retrycnt < 4)); 3624 if (error && retrycnt >= 4) 3625 error = EIO; 3626 return (error); 3627} 3628 3629/* 3630 * The lower level routine for the LockT case. 3631 */ 3632APPLESTATIC int 3633nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, 3634 struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, 3635 struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3636{ 3637 u_int32_t *tl; 3638 int error, type, size; 3639 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 3640 struct nfsnode *np; 3641 3642 NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); 3643 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3644 if (fl->l_type == F_RDLCK) 3645 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3646 else 3647 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3648 txdr_hyper(off, tl); 3649 tl += 2; 3650 txdr_hyper(len, tl); 3651 tl += 2; 3652 *tl++ = clp->nfsc_clientid.lval[0]; 3653 *tl = clp->nfsc_clientid.lval[1]; 3654 nfscl_filllockowner(id, own, flags); 3655 np = VTONFS(vp); 3656 NFSBCOPY(np->n_fhp->nfh_fh, &own[NFSV4CL_LOCKNAMELEN], 3657 np->n_fhp->nfh_len); 3658 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + np->n_fhp->nfh_len); 3659 error = nfscl_request(nd, vp, p, cred, NULL); 3660 if (error) 3661 return (error); 3662 if (nd->nd_repstat == 0) { 3663 fl->l_type = F_UNLCK; 3664 } else if (nd->nd_repstat == NFSERR_DENIED) { 3665 nd->nd_repstat = 0; 3666 fl->l_whence = SEEK_SET; 3667 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3668 fl->l_start = fxdr_hyper(tl); 3669 tl += 2; 3670 len = fxdr_hyper(tl); 3671 tl += 2; 3672 if (len == NFS64BITSSET) 3673 fl->l_len = 0; 3674 else 3675 fl->l_len = len; 3676 type = fxdr_unsigned(int, *tl++); 3677 if (type == NFSV4LOCKT_WRITE) 3678 fl->l_type = F_WRLCK; 3679 else 3680 fl->l_type = F_RDLCK; 3681 /* 3682 * XXX For now, I have no idea what to do with the 3683 * conflicting lock_owner, so I'll just set the pid == 0 3684 * and skip over the lock_owner. 3685 */ 3686 fl->l_pid = (pid_t)0; 3687 tl += 2; 3688 size = fxdr_unsigned(int, *tl); 3689 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3690 error = EBADRPC; 3691 if (!error) 3692 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3693 } else if (nd->nd_repstat == NFSERR_STALECLIENTID) 3694 nfscl_initiate_recovery(clp); 3695nfsmout: 3696 mbuf_freem(nd->nd_mrep); 3697 return (error); 3698} 3699 3700/* 3701 * Lower level function that performs the LockU RPC. 3702 */ 3703static int 3704nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, 3705 struct nfscllockowner *lp, u_int64_t off, u_int64_t len, 3706 u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) 3707{ 3708 u_int32_t *tl; 3709 int error; 3710 3711 nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, 3712 lp->nfsl_open->nfso_fhlen, NULL); 3713 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3714 *tl++ = txdr_unsigned(type); 3715 *tl = txdr_unsigned(lp->nfsl_seqid); 3716 if (nfstest_outofseq && 3717 (arc4random() % nfstest_outofseq) == 0) 3718 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3719 tl++; 3720 *tl++ = lp->nfsl_stateid.seqid; 3721 *tl++ = lp->nfsl_stateid.other[0]; 3722 *tl++ = lp->nfsl_stateid.other[1]; 3723 *tl++ = lp->nfsl_stateid.other[2]; 3724 txdr_hyper(off, tl); 3725 tl += 2; 3726 txdr_hyper(len, tl); 3727 if (syscred) 3728 nd->nd_flag |= ND_USEGSSNAME; 3729 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3730 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3731 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3732 if (error) 3733 return (error); 3734 if (nd->nd_repstat == 0) { 3735 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3736 lp->nfsl_stateid.seqid = *tl++; 3737 lp->nfsl_stateid.other[0] = *tl++; 3738 lp->nfsl_stateid.other[1] = *tl++; 3739 lp->nfsl_stateid.other[2] = *tl; 3740 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3741 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3742nfsmout: 3743 mbuf_freem(nd->nd_mrep); 3744 return (error); 3745} 3746 3747/* 3748 * The actual Lock RPC. 3749 */ 3750APPLESTATIC int 3751nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, 3752 u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, 3753 int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, 3754 NFSPROC_T *p, int syscred) 3755{ 3756 u_int32_t *tl; 3757 int error, size; 3758 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 3759 3760 nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL); 3761 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3762 if (type == F_RDLCK) 3763 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3764 else 3765 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3766 *tl++ = txdr_unsigned(reclaim); 3767 txdr_hyper(off, tl); 3768 tl += 2; 3769 txdr_hyper(len, tl); 3770 tl += 2; 3771 if (newone) { 3772 *tl = newnfs_true; 3773 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3774 2 * NFSX_UNSIGNED + NFSX_HYPER); 3775 *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); 3776 *tl++ = lp->nfsl_open->nfso_stateid.seqid; 3777 *tl++ = lp->nfsl_open->nfso_stateid.other[0]; 3778 *tl++ = lp->nfsl_open->nfso_stateid.other[1]; 3779 *tl++ = lp->nfsl_open->nfso_stateid.other[2]; 3780 *tl++ = txdr_unsigned(lp->nfsl_seqid); 3781 *tl++ = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 3782 *tl = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 3783 NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); 3784 NFSBCOPY(nfhp, &own[NFSV4CL_LOCKNAMELEN], fhlen); 3785 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); 3786 } else { 3787 *tl = newnfs_false; 3788 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3789 *tl++ = lp->nfsl_stateid.seqid; 3790 *tl++ = lp->nfsl_stateid.other[0]; 3791 *tl++ = lp->nfsl_stateid.other[1]; 3792 *tl++ = lp->nfsl_stateid.other[2]; 3793 *tl = txdr_unsigned(lp->nfsl_seqid); 3794 if (nfstest_outofseq && 3795 (arc4random() % nfstest_outofseq) == 0) 3796 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3797 } 3798 if (syscred) 3799 nd->nd_flag |= ND_USEGSSNAME; 3800 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 3801 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3802 if (error) 3803 return (error); 3804 if (newone) 3805 NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); 3806 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3807 if (nd->nd_repstat == 0) { 3808 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3809 lp->nfsl_stateid.seqid = *tl++; 3810 lp->nfsl_stateid.other[0] = *tl++; 3811 lp->nfsl_stateid.other[1] = *tl++; 3812 lp->nfsl_stateid.other[2] = *tl; 3813 } else if (nd->nd_repstat == NFSERR_DENIED) { 3814 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3815 size = fxdr_unsigned(int, *(tl + 7)); 3816 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3817 error = EBADRPC; 3818 if (!error) 3819 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3820 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3821 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3822nfsmout: 3823 mbuf_freem(nd->nd_mrep); 3824 return (error); 3825} 3826 3827/* 3828 * nfs statfs rpc 3829 * (always called with the vp for the mount point) 3830 */ 3831APPLESTATIC int 3832nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, 3833 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3834 void *stuff) 3835{ 3836 u_int32_t *tl = NULL; 3837 struct nfsrv_descript nfsd, *nd = &nfsd; 3838 struct nfsmount *nmp; 3839 nfsattrbit_t attrbits; 3840 int error; 3841 3842 *attrflagp = 0; 3843 nmp = VFSTONFS(vnode_mount(vp)); 3844 if (NFSHASNFSV4(nmp)) { 3845 /* 3846 * For V4, you actually do a getattr. 3847 */ 3848 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3849 NFSSTATFS_GETATTRBIT(&attrbits); 3850 (void) nfsrv_putattrbit(nd, &attrbits); 3851 nd->nd_flag |= ND_USEGSSNAME; 3852 error = nfscl_request(nd, vp, p, cred, stuff); 3853 if (error) 3854 return (error); 3855 if (nd->nd_repstat == 0) { 3856 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3857 NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, 3858 cred); 3859 if (!error) { 3860 nmp->nm_fsid[0] = nap->na_filesid[0]; 3861 nmp->nm_fsid[1] = nap->na_filesid[1]; 3862 NFSSETHASSETFSID(nmp); 3863 *attrflagp = 1; 3864 } 3865 } else { 3866 error = nd->nd_repstat; 3867 } 3868 if (error) 3869 goto nfsmout; 3870 } else { 3871 NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); 3872 error = nfscl_request(nd, vp, p, cred, stuff); 3873 if (error) 3874 return (error); 3875 if (nd->nd_flag & ND_NFSV3) { 3876 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3877 if (error) 3878 goto nfsmout; 3879 } 3880 if (nd->nd_repstat) { 3881 error = nd->nd_repstat; 3882 goto nfsmout; 3883 } 3884 NFSM_DISSECT(tl, u_int32_t *, 3885 NFSX_STATFS(nd->nd_flag & ND_NFSV3)); 3886 } 3887 if (NFSHASNFSV3(nmp)) { 3888 sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; 3889 sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; 3890 sbp->sf_abytes = fxdr_hyper(tl); tl += 2; 3891 sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; 3892 sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; 3893 sbp->sf_afiles = fxdr_hyper(tl); tl += 2; 3894 sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); 3895 } else if (NFSHASNFSV4(nmp) == 0) { 3896 sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); 3897 sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); 3898 sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); 3899 sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); 3900 sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); 3901 } 3902nfsmout: 3903 mbuf_freem(nd->nd_mrep); 3904 return (error); 3905} 3906 3907/* 3908 * nfs pathconf rpc 3909 */ 3910APPLESTATIC int 3911nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, 3912 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3913 void *stuff) 3914{ 3915 struct nfsrv_descript nfsd, *nd = &nfsd; 3916 struct nfsmount *nmp; 3917 u_int32_t *tl; 3918 nfsattrbit_t attrbits; 3919 int error; 3920 3921 *attrflagp = 0; 3922 nmp = VFSTONFS(vnode_mount(vp)); 3923 if (NFSHASNFSV4(nmp)) { 3924 /* 3925 * For V4, you actually do a getattr. 3926 */ 3927 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3928 NFSPATHCONF_GETATTRBIT(&attrbits); 3929 (void) nfsrv_putattrbit(nd, &attrbits); 3930 nd->nd_flag |= ND_USEGSSNAME; 3931 error = nfscl_request(nd, vp, p, cred, stuff); 3932 if (error) 3933 return (error); 3934 if (nd->nd_repstat == 0) { 3935 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3936 pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, 3937 cred); 3938 if (!error) 3939 *attrflagp = 1; 3940 } else { 3941 error = nd->nd_repstat; 3942 } 3943 } else { 3944 NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp); 3945 error = nfscl_request(nd, vp, p, cred, stuff); 3946 if (error) 3947 return (error); 3948 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3949 if (nd->nd_repstat && !error) 3950 error = nd->nd_repstat; 3951 if (!error) { 3952 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF); 3953 pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); 3954 pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); 3955 pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); 3956 pc->pc_chownrestricted = 3957 fxdr_unsigned(u_int32_t, *tl++); 3958 pc->pc_caseinsensitive = 3959 fxdr_unsigned(u_int32_t, *tl++); 3960 pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); 3961 } 3962 } 3963nfsmout: 3964 mbuf_freem(nd->nd_mrep); 3965 return (error); 3966} 3967 3968/* 3969 * nfs version 3 fsinfo rpc call 3970 */ 3971APPLESTATIC int 3972nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, 3973 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 3974{ 3975 u_int32_t *tl; 3976 struct nfsrv_descript nfsd, *nd = &nfsd; 3977 int error; 3978 3979 *attrflagp = 0; 3980 NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); 3981 error = nfscl_request(nd, vp, p, cred, stuff); 3982 if (error) 3983 return (error); 3984 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3985 if (nd->nd_repstat && !error) 3986 error = nd->nd_repstat; 3987 if (!error) { 3988 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); 3989 fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); 3990 fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); 3991 fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); 3992 fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); 3993 fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); 3994 fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); 3995 fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); 3996 fsp->fs_maxfilesize = fxdr_hyper(tl); 3997 tl += 2; 3998 fxdr_nfsv3time(tl, &fsp->fs_timedelta); 3999 tl += 2; 4000 fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); 4001 } 4002nfsmout: 4003 mbuf_freem(nd->nd_mrep); 4004 return (error); 4005} 4006 4007/* 4008 * This function performs the Renew RPC. 4009 */ 4010APPLESTATIC int 4011nfsrpc_renew(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p) 4012{ 4013 u_int32_t *tl; 4014 struct nfsrv_descript nfsd; 4015 struct nfsrv_descript *nd = &nfsd; 4016 struct nfsmount *nmp; 4017 int error; 4018 4019 nmp = clp->nfsc_nmp; 4020 if (nmp == NULL) 4021 return (0); 4022 nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL); 4023 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4024 *tl++ = clp->nfsc_clientid.lval[0]; 4025 *tl = clp->nfsc_clientid.lval[1]; 4026 nd->nd_flag |= ND_USEGSSNAME; 4027 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4028 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4029 if (error) 4030 return (error); 4031 error = nd->nd_repstat; 4032 mbuf_freem(nd->nd_mrep); 4033 return (error); 4034} 4035 4036/* 4037 * This function performs the Releaselockowner RPC. 4038 */ 4039APPLESTATIC int 4040nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, 4041 uint8_t *fh, int fhlen, struct ucred *cred, NFSPROC_T *p) 4042{ 4043 struct nfsrv_descript nfsd, *nd = &nfsd; 4044 u_int32_t *tl; 4045 int error; 4046 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 4047 4048 nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL); 4049 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4050 *tl++ = nmp->nm_clp->nfsc_clientid.lval[0]; 4051 *tl = nmp->nm_clp->nfsc_clientid.lval[1]; 4052 NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); 4053 NFSBCOPY(fh, &own[NFSV4CL_LOCKNAMELEN], fhlen); 4054 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); 4055 nd->nd_flag |= ND_USEGSSNAME; 4056 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4057 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4058 if (error) 4059 return (error); 4060 error = nd->nd_repstat; 4061 mbuf_freem(nd->nd_mrep); 4062 return (error); 4063} 4064 4065/* 4066 * This function performs the Compound to get the mount pt FH. 4067 */ 4068APPLESTATIC int 4069nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, 4070 NFSPROC_T *p) 4071{ 4072 u_int32_t *tl; 4073 struct nfsrv_descript nfsd; 4074 struct nfsrv_descript *nd = &nfsd; 4075 u_char *cp, *cp2; 4076 int error, cnt, len, setnil; 4077 u_int32_t *opcntp; 4078 4079 nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp); 4080 cp = dirpath; 4081 cnt = 0; 4082 do { 4083 setnil = 0; 4084 while (*cp == '/') 4085 cp++; 4086 cp2 = cp; 4087 while (*cp2 != '\0' && *cp2 != '/') 4088 cp2++; 4089 if (*cp2 == '/') { 4090 setnil = 1; 4091 *cp2 = '\0'; 4092 } 4093 if (cp2 != cp) { 4094 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4095 *tl = txdr_unsigned(NFSV4OP_LOOKUP); 4096 nfsm_strtom(nd, cp, strlen(cp)); 4097 cnt++; 4098 } 4099 if (setnil) 4100 *cp2++ = '/'; 4101 cp = cp2; 4102 } while (*cp != '\0'); 4103 *opcntp = txdr_unsigned(2 + cnt); 4104 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4105 *tl = txdr_unsigned(NFSV4OP_GETFH); 4106 nd->nd_flag |= ND_USEGSSNAME; 4107 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4108 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4109 if (error) 4110 return (error); 4111 if (nd->nd_repstat == 0) { 4112 NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); 4113 tl += (2 + 2 * cnt); 4114 if ((len = fxdr_unsigned(int, *tl)) <= 0 || 4115 len > NFSX_FHMAX) { 4116 nd->nd_repstat = NFSERR_BADXDR; 4117 } else { 4118 nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); 4119 if (nd->nd_repstat == 0) 4120 nmp->nm_fhsize = len; 4121 } 4122 } 4123 error = nd->nd_repstat; 4124nfsmout: 4125 mbuf_freem(nd->nd_mrep); 4126 return (error); 4127} 4128 4129/* 4130 * This function performs the Delegreturn RPC. 4131 */ 4132APPLESTATIC int 4133nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, 4134 struct nfsmount *nmp, NFSPROC_T *p, int syscred) 4135{ 4136 u_int32_t *tl; 4137 struct nfsrv_descript nfsd; 4138 struct nfsrv_descript *nd = &nfsd; 4139 int error; 4140 4141 nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, 4142 dp->nfsdl_fhlen, NULL); 4143 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 4144 *tl++ = dp->nfsdl_stateid.seqid; 4145 *tl++ = dp->nfsdl_stateid.other[0]; 4146 *tl++ = dp->nfsdl_stateid.other[1]; 4147 *tl = dp->nfsdl_stateid.other[2]; 4148 if (syscred) 4149 nd->nd_flag |= ND_USEGSSNAME; 4150 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4151 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4152 if (error) 4153 return (error); 4154 error = nd->nd_repstat; 4155 mbuf_freem(nd->nd_mrep); 4156 return (error); 4157} 4158 4159/* 4160 * nfs getacl call. 4161 */ 4162APPLESTATIC int 4163nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4164 struct acl *aclp, void *stuff) 4165{ 4166 struct nfsrv_descript nfsd, *nd = &nfsd; 4167 int error; 4168 nfsattrbit_t attrbits; 4169 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4170 4171 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4172 return (EOPNOTSUPP); 4173 NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); 4174 NFSZERO_ATTRBIT(&attrbits); 4175 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4176 (void) nfsrv_putattrbit(nd, &attrbits); 4177 error = nfscl_request(nd, vp, p, cred, stuff); 4178 if (error) 4179 return (error); 4180 if (!nd->nd_repstat) 4181 error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, 4182 NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); 4183 else 4184 error = nd->nd_repstat; 4185 mbuf_freem(nd->nd_mrep); 4186 return (error); 4187} 4188 4189/* 4190 * nfs setacl call. 4191 */ 4192APPLESTATIC int 4193nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4194 struct acl *aclp, void *stuff) 4195{ 4196 int error; 4197 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4198 4199 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4200 return (EOPNOTSUPP); 4201 error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); 4202 return (error); 4203} 4204 4205/* 4206 * nfs setacl call. 4207 */ 4208static int 4209nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4210 struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) 4211{ 4212 struct nfsrv_descript nfsd, *nd = &nfsd; 4213 int error; 4214 nfsattrbit_t attrbits; 4215 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4216 4217 if (!NFSHASNFSV4(nmp)) 4218 return (EOPNOTSUPP); 4219 NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); 4220 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 4221 NFSZERO_ATTRBIT(&attrbits); 4222 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4223 (void) nfsv4_fillattr(nd, vnode_mount(vp), vp, aclp, NULL, NULL, 0, 4224 &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0); 4225 error = nfscl_request(nd, vp, p, cred, stuff); 4226 if (error) 4227 return (error); 4228 /* Don't care about the pre/postop attributes */ 4229 mbuf_freem(nd->nd_mrep); 4230 return (nd->nd_repstat); 4231} 4232