1/*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD$"); 36 37/* 38 * Rpc op calls, generally called from the vnode op calls or through the 39 * buffer cache, for NFS v2, 3 and 4. 40 * These do not normally make any changes to vnode arguments or use 41 * structures that might change between the VFS variants. The returned 42 * arguments are all at the end, after the NFSPROC_T *p one. 43 */ 44 45#ifndef APPLEKEXT 46#include "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]; 59extern int nfscl_debuglevel; 60NFSCLSTATEMUTEX; 61int nfstest_outofseq = 0; 62int nfscl_assumeposixlocks = 1; 63int nfscl_enablecallb = 0; 64short nfsv4_cbport = NFSV4_CBPORT; 65int nfstest_openallsetattr = 0; 66#endif /* !APPLEKEXT */ 67 68#define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1)) 69 70static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *, 71 struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *); 72static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *, 73 nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *); 74static int nfsrpc_writerpc(vnode_t , struct uio *, int *, int *, 75 struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, 76 void *); 77static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *, 78 nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *, 79 struct nfsvattr *, struct nfsfh **, int *, int *, void *); 80static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *, 81 nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *, 82 NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, 83 int *, void *, int *); 84static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *, 85 struct nfscllockowner *, u_int64_t, u_int64_t, 86 u_int32_t, struct ucred *, NFSPROC_T *, int); 87static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, 88 struct acl *, nfsv4stateid_t *, void *); 89 90/* 91 * nfs null call from vfs. 92 */ 93APPLESTATIC int 94nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p) 95{ 96 int error; 97 struct nfsrv_descript nfsd, *nd = &nfsd; 98 99 NFSCL_REQSTART(nd, NFSPROC_NULL, vp); 100 error = nfscl_request(nd, vp, p, cred, NULL); 101 if (nd->nd_repstat && !error) 102 error = nd->nd_repstat; 103 mbuf_freem(nd->nd_mrep); 104 return (error); 105} 106 107/* 108 * nfs access rpc op. 109 * For nfs version 3 and 4, use the access rpc to check accessibility. If file 110 * modes are changed on the server, accesses might still fail later. 111 */ 112APPLESTATIC int 113nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred, 114 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp) 115{ 116 int error; 117 u_int32_t mode, rmode; 118 119 if (acmode & VREAD) 120 mode = NFSACCESS_READ; 121 else 122 mode = 0; 123 if (vnode_vtype(vp) == VDIR) { 124 if (acmode & VWRITE) 125 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND | 126 NFSACCESS_DELETE); 127 if (acmode & VEXEC) 128 mode |= NFSACCESS_LOOKUP; 129 } else { 130 if (acmode & VWRITE) 131 mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND); 132 if (acmode & VEXEC) 133 mode |= NFSACCESS_EXECUTE; 134 } 135 136 /* 137 * Now, just call nfsrpc_accessrpc() to do the actual RPC. 138 */ 139 error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode, 140 NULL); 141 142 /* 143 * The NFS V3 spec does not clarify whether or not 144 * the returned access bits can be a superset of 145 * the ones requested, so... 146 */ 147 if (!error && (rmode & mode) != mode) 148 error = EACCES; 149 return (error); 150} 151 152/* 153 * The actual rpc, separated out for Darwin. 154 */ 155APPLESTATIC int 156nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred, 157 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep, 158 void *stuff) 159{ 160 u_int32_t *tl; 161 u_int32_t supported, rmode; 162 int error; 163 struct nfsrv_descript nfsd, *nd = &nfsd; 164 nfsattrbit_t attrbits; 165 166 *attrflagp = 0; 167 supported = mode; 168 NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp); 169 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 170 *tl = txdr_unsigned(mode); 171 if (nd->nd_flag & ND_NFSV4) { 172 /* 173 * And do a Getattr op. 174 */ 175 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 176 *tl = txdr_unsigned(NFSV4OP_GETATTR); 177 NFSGETATTR_ATTRBIT(&attrbits); 178 (void) nfsrv_putattrbit(nd, &attrbits); 179 } 180 error = nfscl_request(nd, vp, p, cred, stuff); 181 if (error) 182 return (error); 183 if (nd->nd_flag & ND_NFSV3) { 184 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 185 if (error) 186 goto nfsmout; 187 } 188 if (!nd->nd_repstat) { 189 if (nd->nd_flag & ND_NFSV4) { 190 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 191 supported = fxdr_unsigned(u_int32_t, *tl++); 192 } else { 193 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 194 } 195 rmode = fxdr_unsigned(u_int32_t, *tl); 196 if (nd->nd_flag & ND_NFSV4) 197 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 198 199 /* 200 * It's not obvious what should be done about 201 * unsupported access modes. For now, be paranoid 202 * and clear the unsupported ones. 203 */ 204 rmode &= supported; 205 *rmodep = rmode; 206 } else 207 error = nd->nd_repstat; 208nfsmout: 209 mbuf_freem(nd->nd_mrep); 210 return (error); 211} 212 213/* 214 * nfs open rpc 215 */ 216APPLESTATIC int 217nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p) 218{ 219 struct nfsclopen *op; 220 struct nfscldeleg *dp; 221 struct nfsfh *nfhp; 222 struct nfsnode *np = VTONFS(vp); 223 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 224 u_int32_t mode, clidrev; 225 int ret, newone, error, expireret = 0, retrycnt; 226 227 /* 228 * For NFSv4, Open Ops are only done on Regular Files. 229 */ 230 if (vnode_vtype(vp) != VREG) 231 return (0); 232 mode = 0; 233 if (amode & FREAD) 234 mode |= NFSV4OPEN_ACCESSREAD; 235 if (amode & FWRITE) 236 mode |= NFSV4OPEN_ACCESSWRITE; 237 nfhp = np->n_fhp; 238 239 retrycnt = 0; 240#ifdef notdef 241{ char name[100]; int namel; 242namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; 243bcopy(NFS4NODENAME(np->n_v4), name, namel); 244name[namel] = '\0'; 245printf("rpcopen p=0x%x name=%s",p->p_pid,name); 246if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); 247else printf(" fhl=0\n"); 248} 249#endif 250 do { 251 dp = NULL; 252 error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1, 253 cred, p, NULL, &op, &newone, &ret, 1); 254 if (error) { 255 return (error); 256 } 257 if (nmp->nm_clp != NULL) 258 clidrev = nmp->nm_clp->nfsc_clientidrev; 259 else 260 clidrev = 0; 261 if (ret == NFSCLOPEN_DOOPEN) { 262 if (np->n_v4 != NULL) { 263 error = nfsrpc_openrpc(nmp, vp, np->n_v4->n4_data, 264 np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, 265 np->n_fhp->nfh_len, mode, op, 266 NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, &dp, 267 0, 0x0, cred, p, 0, 0); 268 if (dp != NULL) { 269#ifdef APPLE 270 OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag); 271#else 272 NFSLOCKNODE(np); 273 np->n_flag &= ~NDELEGMOD; 274 /* 275 * Invalidate the attribute cache, so that 276 * attributes that pre-date the issue of a 277 * delegation are not cached, since the 278 * cached attributes will remain valid while 279 * the delegation is held. 280 */ 281 NFSINVALATTRCACHE(np); 282 NFSUNLOCKNODE(np); 283#endif 284 (void) nfscl_deleg(nmp->nm_mountp, 285 op->nfso_own->nfsow_clp, 286 nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); 287 } 288 } else { 289 error = EIO; 290 } 291 newnfs_copyincred(cred, &op->nfso_cred); 292 } else if (ret == NFSCLOPEN_SETCRED) 293 /* 294 * This is a new local open on a delegation. It needs 295 * to have credentials so that an open can be done 296 * against the server during recovery. 297 */ 298 newnfs_copyincred(cred, &op->nfso_cred); 299 300 /* 301 * nfso_opencnt is the count of how many VOP_OPEN()s have 302 * been done on this Open successfully and a VOP_CLOSE() 303 * is expected for each of these. 304 * If error is non-zero, don't increment it, since the Open 305 * hasn't succeeded yet. 306 */ 307 if (!error) 308 op->nfso_opencnt++; 309 nfscl_openrelease(op, error, newone); 310 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 311 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 312 (void) nfs_catnap(PZERO, error, "nfs_open"); 313 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 314 && clidrev != 0) { 315 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 316 retrycnt++; 317 } 318 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 319 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 320 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 321 expireret == 0 && clidrev != 0 && retrycnt < 4)); 322 if (error && retrycnt >= 4) 323 error = EIO; 324 return (error); 325} 326 327/* 328 * the actual open rpc 329 */ 330APPLESTATIC int 331nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, 332 u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, 333 u_int8_t *name, int namelen, struct nfscldeleg **dpp, 334 int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, 335 int syscred, int recursed) 336{ 337 u_int32_t *tl; 338 struct nfsrv_descript nfsd, *nd = &nfsd; 339 struct nfscldeleg *dp, *ndp = NULL; 340 struct nfsvattr nfsva; 341 u_int32_t rflags, deleg; 342 nfsattrbit_t attrbits; 343 int error, ret, acesize, limitby; 344 345 dp = *dpp; 346 *dpp = NULL; 347 nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL); 348 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 349 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 350 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 351 *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 352 *tl++ = op->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 353 *tl = op->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 354 (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); 355 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 356 *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); 357 if (reclaim) { 358 *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); 359 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 360 *tl = txdr_unsigned(delegtype); 361 } else { 362 if (dp != NULL) { 363 *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); 364 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 365 *tl++ = dp->nfsdl_stateid.seqid; 366 *tl++ = dp->nfsdl_stateid.other[0]; 367 *tl++ = dp->nfsdl_stateid.other[1]; 368 *tl = dp->nfsdl_stateid.other[2]; 369 } else { 370 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 371 } 372 (void) nfsm_strtom(nd, name, namelen); 373 } 374 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 375 *tl = txdr_unsigned(NFSV4OP_GETATTR); 376 NFSZERO_ATTRBIT(&attrbits); 377 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 378 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); 379 (void) nfsrv_putattrbit(nd, &attrbits); 380 if (syscred) 381 nd->nd_flag |= ND_USEGSSNAME; 382 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 383 NFS_PROG, NFS_VER4, NULL, 1, NULL); 384 if (error) 385 return (error); 386 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 387 if (!nd->nd_repstat) { 388 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 389 6 * NFSX_UNSIGNED); 390 op->nfso_stateid.seqid = *tl++; 391 op->nfso_stateid.other[0] = *tl++; 392 op->nfso_stateid.other[1] = *tl++; 393 op->nfso_stateid.other[2] = *tl; 394 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 395 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 396 if (error) 397 goto nfsmout; 398 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 399 deleg = fxdr_unsigned(u_int32_t, *tl); 400 if (deleg == NFSV4OPEN_DELEGATEREAD || 401 deleg == NFSV4OPEN_DELEGATEWRITE) { 402 if (!(op->nfso_own->nfsow_clp->nfsc_flags & 403 NFSCLFLAGS_FIRSTDELEG)) 404 op->nfso_own->nfsow_clp->nfsc_flags |= 405 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 406 MALLOC(ndp, struct nfscldeleg *, 407 sizeof (struct nfscldeleg) + newfhlen, 408 M_NFSCLDELEG, M_WAITOK); 409 LIST_INIT(&ndp->nfsdl_owner); 410 LIST_INIT(&ndp->nfsdl_lock); 411 ndp->nfsdl_clp = op->nfso_own->nfsow_clp; 412 ndp->nfsdl_fhlen = newfhlen; 413 NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); 414 newnfs_copyincred(cred, &ndp->nfsdl_cred); 415 nfscl_lockinit(&ndp->nfsdl_rwlock); 416 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 417 NFSX_UNSIGNED); 418 ndp->nfsdl_stateid.seqid = *tl++; 419 ndp->nfsdl_stateid.other[0] = *tl++; 420 ndp->nfsdl_stateid.other[1] = *tl++; 421 ndp->nfsdl_stateid.other[2] = *tl++; 422 ret = fxdr_unsigned(int, *tl); 423 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 424 ndp->nfsdl_flags = NFSCLDL_WRITE; 425 /* 426 * Indicates how much the file can grow. 427 */ 428 NFSM_DISSECT(tl, u_int32_t *, 429 3 * NFSX_UNSIGNED); 430 limitby = fxdr_unsigned(int, *tl++); 431 switch (limitby) { 432 case NFSV4OPEN_LIMITSIZE: 433 ndp->nfsdl_sizelimit = fxdr_hyper(tl); 434 break; 435 case NFSV4OPEN_LIMITBLOCKS: 436 ndp->nfsdl_sizelimit = 437 fxdr_unsigned(u_int64_t, *tl++); 438 ndp->nfsdl_sizelimit *= 439 fxdr_unsigned(u_int64_t, *tl); 440 break; 441 default: 442 error = NFSERR_BADXDR; 443 goto nfsmout; 444 }; 445 } else { 446 ndp->nfsdl_flags = NFSCLDL_READ; 447 } 448 if (ret) 449 ndp->nfsdl_flags |= NFSCLDL_RECALL; 450 error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, 451 &acesize, p); 452 if (error) 453 goto nfsmout; 454 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 455 error = NFSERR_BADXDR; 456 goto nfsmout; 457 } 458 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 459 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 460 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 461 NULL, NULL, NULL, p, cred); 462 if (error) 463 goto nfsmout; 464 if (ndp != NULL) { 465 ndp->nfsdl_change = nfsva.na_filerev; 466 ndp->nfsdl_modtime = nfsva.na_mtime; 467 ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; 468 } 469 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { 470 do { 471 ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, 472 cred, p); 473 if (ret == NFSERR_DELAY) 474 (void) nfs_catnap(PZERO, ret, "nfs_open"); 475 } while (ret == NFSERR_DELAY); 476 error = ret; 477 } 478 if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || 479 nfscl_assumeposixlocks) 480 op->nfso_posixlock = 1; 481 else 482 op->nfso_posixlock = 0; 483 484 /* 485 * If the server is handing out delegations, but we didn't 486 * get one because an OpenConfirm was required, try the 487 * Open again, to get a delegation. This is a harmless no-op, 488 * from a server's point of view. 489 */ 490 if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && 491 (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) 492 && !error && dp == NULL && ndp == NULL && !recursed) { 493 do { 494 ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, 495 newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, 496 cred, p, syscred, 1); 497 if (ret == NFSERR_DELAY) 498 (void) nfs_catnap(PZERO, ret, "nfs_open2"); 499 } while (ret == NFSERR_DELAY); 500 if (ret) { 501 if (ndp != NULL) 502 FREE((caddr_t)ndp, M_NFSCLDELEG); 503 if (ret == NFSERR_STALECLIENTID || 504 ret == NFSERR_STALEDONTRECOVER) 505 error = ret; 506 } 507 } 508 } 509 if (nd->nd_repstat != 0 && error == 0) 510 error = nd->nd_repstat; 511 if (error == NFSERR_STALECLIENTID) 512 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 513nfsmout: 514 if (!error) 515 *dpp = ndp; 516 else if (ndp != NULL) 517 FREE((caddr_t)ndp, M_NFSCLDELEG); 518 mbuf_freem(nd->nd_mrep); 519 return (error); 520} 521 522/* 523 * open downgrade rpc 524 */ 525APPLESTATIC int 526nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, 527 struct ucred *cred, NFSPROC_T *p) 528{ 529 u_int32_t *tl; 530 struct nfsrv_descript nfsd, *nd = &nfsd; 531 int error; 532 533 NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); 534 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 535 *tl++ = op->nfso_stateid.seqid; 536 *tl++ = op->nfso_stateid.other[0]; 537 *tl++ = op->nfso_stateid.other[1]; 538 *tl++ = op->nfso_stateid.other[2]; 539 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 540 *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); 541 *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); 542 error = nfscl_request(nd, vp, p, cred, NULL); 543 if (error) 544 return (error); 545 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 546 if (!nd->nd_repstat) { 547 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 548 op->nfso_stateid.seqid = *tl++; 549 op->nfso_stateid.other[0] = *tl++; 550 op->nfso_stateid.other[1] = *tl++; 551 op->nfso_stateid.other[2] = *tl; 552 } 553 if (nd->nd_repstat && error == 0) 554 error = nd->nd_repstat; 555 if (error == NFSERR_STALESTATEID) 556 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 557nfsmout: 558 mbuf_freem(nd->nd_mrep); 559 return (error); 560} 561 562/* 563 * V4 Close operation. 564 */ 565APPLESTATIC int 566nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) 567{ 568 struct nfsclclient *clp; 569 int error; 570 571 if (vnode_vtype(vp) != VREG) 572 return (0); 573 if (doclose) 574 error = nfscl_doclose(vp, &clp, p); 575 else 576 error = nfscl_getclose(vp, &clp); 577 if (error) 578 return (error); 579 580 nfscl_clientrelease(clp); 581 return (0); 582} 583 584/* 585 * Close the open. 586 */ 587APPLESTATIC void 588nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p) 589{ 590 struct nfsrv_descript nfsd, *nd = &nfsd; 591 struct nfscllockowner *lp, *nlp; 592 struct nfscllock *lop, *nlop; 593 struct ucred *tcred; 594 u_int64_t off = 0, len = 0; 595 u_int32_t type = NFSV4LOCKT_READ; 596 int error, do_unlock, trycnt; 597 598 tcred = newnfs_getcred(); 599 newnfs_copycred(&op->nfso_cred, tcred); 600 /* 601 * (Theoretically this could be done in the same 602 * compound as the close, but having multiple 603 * sequenced Ops in the same compound might be 604 * too scary for some servers.) 605 */ 606 if (op->nfso_posixlock) { 607 off = 0; 608 len = NFS64BITSSET; 609 type = NFSV4LOCKT_READ; 610 } 611 612 /* 613 * Since this function is only called from VOP_INACTIVE(), no 614 * other thread will be manipulating this Open. As such, the 615 * lock lists are not being changed by other threads, so it should 616 * be safe to do this without locking. 617 */ 618 LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { 619 do_unlock = 1; 620 LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) { 621 if (op->nfso_posixlock == 0) { 622 off = lop->nfslo_first; 623 len = lop->nfslo_end - lop->nfslo_first; 624 if (lop->nfslo_type == F_WRLCK) 625 type = NFSV4LOCKT_WRITE; 626 else 627 type = NFSV4LOCKT_READ; 628 } 629 if (do_unlock) { 630 trycnt = 0; 631 do { 632 error = nfsrpc_locku(nd, nmp, lp, off, 633 len, type, tcred, p, 0); 634 if ((nd->nd_repstat == NFSERR_GRACE || 635 nd->nd_repstat == NFSERR_DELAY) && 636 error == 0) 637 (void) nfs_catnap(PZERO, 638 (int)nd->nd_repstat, 639 "nfs_close"); 640 } while ((nd->nd_repstat == NFSERR_GRACE || 641 nd->nd_repstat == NFSERR_DELAY) && 642 error == 0 && trycnt++ < 5); 643 if (op->nfso_posixlock) 644 do_unlock = 0; 645 } 646 nfscl_freelock(lop, 0); 647 } 648 /* 649 * Do a ReleaseLockOwner. 650 * The lock owner name nfsl_owner may be used by other opens for 651 * other files but the lock_owner4 name that nfsrpc_rellockown() 652 * puts on the wire has the file handle for this file appended 653 * to it, so it can be done now. 654 */ 655 (void)nfsrpc_rellockown(nmp, lp, lp->nfsl_open->nfso_fh, 656 lp->nfsl_open->nfso_fhlen, tcred, p); 657 } 658 659 /* 660 * There could be other Opens for different files on the same 661 * OpenOwner, so locking is required. 662 */ 663 NFSLOCKCLSTATE(); 664 nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); 665 NFSUNLOCKCLSTATE(); 666 do { 667 error = nfscl_tryclose(op, tcred, nmp, p); 668 if (error == NFSERR_GRACE) 669 (void) nfs_catnap(PZERO, error, "nfs_close"); 670 } while (error == NFSERR_GRACE); 671 NFSLOCKCLSTATE(); 672 nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); 673 674 LIST_FOREACH_SAFE(lp, &op->nfso_lock, nfsl_list, nlp) 675 nfscl_freelockowner(lp, 0); 676 nfscl_freeopen(op, 0); 677 NFSUNLOCKCLSTATE(); 678 NFSFREECRED(tcred); 679} 680 681/* 682 * The actual Close RPC. 683 */ 684APPLESTATIC int 685nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, 686 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, 687 int syscred) 688{ 689 u_int32_t *tl; 690 int error; 691 692 nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, 693 op->nfso_fhlen, NULL); 694 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 695 *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); 696 *tl++ = op->nfso_stateid.seqid; 697 *tl++ = op->nfso_stateid.other[0]; 698 *tl++ = op->nfso_stateid.other[1]; 699 *tl = op->nfso_stateid.other[2]; 700 if (syscred) 701 nd->nd_flag |= ND_USEGSSNAME; 702 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 703 NFS_PROG, NFS_VER4, NULL, 1, NULL); 704 if (error) 705 return (error); 706 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 707 if (nd->nd_repstat == 0) 708 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 709 error = nd->nd_repstat; 710 if (error == NFSERR_STALESTATEID) 711 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 712nfsmout: 713 mbuf_freem(nd->nd_mrep); 714 return (error); 715} 716 717/* 718 * V4 Open Confirm RPC. 719 */ 720APPLESTATIC int 721nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, 722 struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) 723{ 724 u_int32_t *tl; 725 struct nfsrv_descript nfsd, *nd = &nfsd; 726 int error; 727 728 nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, VFSTONFS(vnode_mount(vp)), 729 nfhp, fhlen, NULL); 730 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 731 *tl++ = op->nfso_stateid.seqid; 732 *tl++ = op->nfso_stateid.other[0]; 733 *tl++ = op->nfso_stateid.other[1]; 734 *tl++ = op->nfso_stateid.other[2]; 735 *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); 736 error = nfscl_request(nd, vp, p, cred, NULL); 737 if (error) 738 return (error); 739 NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); 740 if (!nd->nd_repstat) { 741 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 742 op->nfso_stateid.seqid = *tl++; 743 op->nfso_stateid.other[0] = *tl++; 744 op->nfso_stateid.other[1] = *tl++; 745 op->nfso_stateid.other[2] = *tl; 746 } 747 error = nd->nd_repstat; 748 if (error == NFSERR_STALESTATEID) 749 nfscl_initiate_recovery(op->nfso_own->nfsow_clp); 750nfsmout: 751 mbuf_freem(nd->nd_mrep); 752 return (error); 753} 754 755/* 756 * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() 757 * when a mount has just occurred and when the server replies NFSERR_EXPIRED. 758 */ 759APPLESTATIC int 760nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, 761 struct ucred *cred, NFSPROC_T *p) 762{ 763 u_int32_t *tl; 764 struct nfsrv_descript nfsd; 765 struct nfsrv_descript *nd = &nfsd; 766 nfsattrbit_t attrbits; 767 u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; 768 u_short port; 769 int error, isinet6 = 0, callblen; 770 nfsquad_t confirm; 771 u_int32_t lease; 772 static u_int32_t rev = 0; 773 774 if (nfsboottime.tv_sec == 0) 775 NFSSETBOOTTIME(nfsboottime); 776 nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL); 777 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 778 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 779 *tl = txdr_unsigned(rev++); 780 (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); 781 782 /* 783 * set up the callback address 784 */ 785 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 786 *tl = txdr_unsigned(NFS_CALLBCKPROG); 787 callblen = strlen(nfsv4_callbackaddr); 788 if (callblen == 0) 789 cp = nfscl_getmyip(nmp, &isinet6); 790 if (nfscl_enablecallb && nfs_numnfscbd > 0 && 791 (callblen > 0 || cp != NULL)) { 792 port = htons(nfsv4_cbport); 793 cp2 = (u_int8_t *)&port; 794#ifdef INET6 795 if ((callblen > 0 && 796 strchr(nfsv4_callbackaddr, ':')) || isinet6) { 797 char ip6buf[INET6_ADDRSTRLEN], *ip6add; 798 799 (void) nfsm_strtom(nd, "tcp6", 4); 800 if (callblen == 0) { 801 ip6_sprintf(ip6buf, (struct in6_addr *)cp); 802 ip6add = ip6buf; 803 } else { 804 ip6add = nfsv4_callbackaddr; 805 } 806 snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", 807 ip6add, cp2[0], cp2[1]); 808 } else 809#endif 810 { 811 (void) nfsm_strtom(nd, "tcp", 3); 812 if (callblen == 0) 813 snprintf(addr, INET6_ADDRSTRLEN + 9, 814 "%d.%d.%d.%d.%d.%d", cp[0], cp[1], 815 cp[2], cp[3], cp2[0], cp2[1]); 816 else 817 snprintf(addr, INET6_ADDRSTRLEN + 9, 818 "%s.%d.%d", nfsv4_callbackaddr, 819 cp2[0], cp2[1]); 820 } 821 (void) nfsm_strtom(nd, addr, strlen(addr)); 822 } else { 823 (void) nfsm_strtom(nd, "tcp", 3); 824 (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); 825 } 826 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 827 *tl = txdr_unsigned(clp->nfsc_cbident); 828 nd->nd_flag |= ND_USEGSSNAME; 829 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 830 NFS_PROG, NFS_VER4, NULL, 1, NULL); 831 if (error) 832 return (error); 833 if (nd->nd_repstat == 0) { 834 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 835 clp->nfsc_clientid.lval[0] = *tl++; 836 clp->nfsc_clientid.lval[1] = *tl++; 837 confirm.lval[0] = *tl++; 838 confirm.lval[1] = *tl; 839 mbuf_freem(nd->nd_mrep); 840 nd->nd_mrep = NULL; 841 842 /* 843 * and confirm it. 844 */ 845 nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL); 846 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 847 *tl++ = clp->nfsc_clientid.lval[0]; 848 *tl++ = clp->nfsc_clientid.lval[1]; 849 *tl++ = confirm.lval[0]; 850 *tl = confirm.lval[1]; 851 nd->nd_flag |= ND_USEGSSNAME; 852 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 853 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 854 if (error) 855 return (error); 856 mbuf_freem(nd->nd_mrep); 857 nd->nd_mrep = NULL; 858 if (nd->nd_repstat == 0) { 859 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, 860 nmp->nm_fhsize, NULL); 861 NFSZERO_ATTRBIT(&attrbits); 862 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); 863 (void) nfsrv_putattrbit(nd, &attrbits); 864 nd->nd_flag |= ND_USEGSSNAME; 865 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, 866 cred, NFS_PROG, NFS_VER4, NULL, 1, NULL); 867 if (error) 868 return (error); 869 if (nd->nd_repstat == 0) { 870 error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, 871 NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); 872 if (error) 873 goto nfsmout; 874 clp->nfsc_renew = NFSCL_RENEW(lease); 875 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; 876 clp->nfsc_clientidrev++; 877 if (clp->nfsc_clientidrev == 0) 878 clp->nfsc_clientidrev++; 879 } 880 } 881 } 882 error = nd->nd_repstat; 883nfsmout: 884 mbuf_freem(nd->nd_mrep); 885 return (error); 886} 887 888/* 889 * nfs getattr call. 890 */ 891APPLESTATIC int 892nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 893 struct nfsvattr *nap, void *stuff) 894{ 895 struct nfsrv_descript nfsd, *nd = &nfsd; 896 int error; 897 nfsattrbit_t attrbits; 898 899 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 900 if (nd->nd_flag & ND_NFSV4) { 901 NFSGETATTR_ATTRBIT(&attrbits); 902 (void) nfsrv_putattrbit(nd, &attrbits); 903 } 904 error = nfscl_request(nd, vp, p, cred, stuff); 905 if (error) 906 return (error); 907 if (!nd->nd_repstat) 908 error = nfsm_loadattr(nd, nap); 909 else 910 error = nd->nd_repstat; 911 mbuf_freem(nd->nd_mrep); 912 return (error); 913} 914 915/* 916 * nfs getattr call with non-vnode arguemnts. 917 */ 918APPLESTATIC int 919nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, 920 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp) 921{ 922 struct nfsrv_descript nfsd, *nd = &nfsd; 923 int error, vers = NFS_VER2; 924 nfsattrbit_t attrbits; 925 926 nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL); 927 if (nd->nd_flag & ND_NFSV4) { 928 vers = NFS_VER4; 929 NFSGETATTR_ATTRBIT(&attrbits); 930 (void) nfsrv_putattrbit(nd, &attrbits); 931 } else if (nd->nd_flag & ND_NFSV3) { 932 vers = NFS_VER3; 933 } 934 if (syscred) 935 nd->nd_flag |= ND_USEGSSNAME; 936 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 937 NFS_PROG, vers, NULL, 1, xidp); 938 if (error) 939 return (error); 940 if (!nd->nd_repstat) 941 error = nfsm_loadattr(nd, nap); 942 else 943 error = nd->nd_repstat; 944 mbuf_freem(nd->nd_mrep); 945 return (error); 946} 947 948/* 949 * Do an nfs setattr operation. 950 */ 951APPLESTATIC int 952nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, 953 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, 954 void *stuff) 955{ 956 int error, expireret = 0, openerr, retrycnt; 957 u_int32_t clidrev = 0, mode; 958 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 959 struct nfsfh *nfhp; 960 nfsv4stateid_t stateid; 961 void *lckp; 962 963 if (nmp->nm_clp != NULL) 964 clidrev = nmp->nm_clp->nfsc_clientidrev; 965 if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) 966 mode = NFSV4OPEN_ACCESSWRITE; 967 else 968 mode = NFSV4OPEN_ACCESSREAD; 969 retrycnt = 0; 970 do { 971 lckp = NULL; 972 openerr = 1; 973 if (NFSHASNFSV4(nmp)) { 974 nfhp = VTONFS(vp)->n_fhp; 975 error = nfscl_getstateid(vp, nfhp->nfh_fh, 976 nfhp->nfh_len, mode, cred, p, &stateid, &lckp); 977 if (error && vnode_vtype(vp) == VREG && 978 (mode == NFSV4OPEN_ACCESSWRITE || 979 nfstest_openallsetattr)) { 980 /* 981 * No Open stateid, so try and open the file 982 * now. 983 */ 984 if (mode == NFSV4OPEN_ACCESSWRITE) 985 openerr = nfsrpc_open(vp, FWRITE, cred, 986 p); 987 else 988 openerr = nfsrpc_open(vp, FREAD, cred, 989 p); 990 if (!openerr) 991 (void) nfscl_getstateid(vp, 992 nfhp->nfh_fh, nfhp->nfh_len, 993 mode, cred, p, &stateid, &lckp); 994 } 995 } 996 if (vap != NULL) 997 error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, 998 rnap, attrflagp, stuff); 999 else 1000 error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, 1001 stuff); 1002 if (error == NFSERR_STALESTATEID) 1003 nfscl_initiate_recovery(nmp->nm_clp); 1004 if (lckp != NULL) 1005 nfscl_lockderef(lckp); 1006 if (!openerr) 1007 (void) nfsrpc_close(vp, 0, p); 1008 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1009 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1010 error == NFSERR_OLDSTATEID) { 1011 (void) nfs_catnap(PZERO, error, "nfs_setattr"); 1012 } else if ((error == NFSERR_EXPIRED || 1013 error == NFSERR_BADSTATEID) && clidrev != 0) { 1014 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1015 } 1016 retrycnt++; 1017 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1018 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1019 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1020 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1021 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1022 if (error && retrycnt >= 4) 1023 error = EIO; 1024 return (error); 1025} 1026 1027static int 1028nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap, 1029 nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, 1030 struct nfsvattr *rnap, int *attrflagp, void *stuff) 1031{ 1032 u_int32_t *tl; 1033 struct nfsrv_descript nfsd, *nd = &nfsd; 1034 int error; 1035 nfsattrbit_t attrbits; 1036 1037 *attrflagp = 0; 1038 NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp); 1039 if (nd->nd_flag & ND_NFSV4) 1040 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1041 vap->va_type = vnode_vtype(vp); 1042 nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0); 1043 if (nd->nd_flag & ND_NFSV3) { 1044 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1045 *tl = newnfs_false; 1046 } else if (nd->nd_flag & ND_NFSV4) { 1047 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1048 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1049 NFSGETATTR_ATTRBIT(&attrbits); 1050 (void) nfsrv_putattrbit(nd, &attrbits); 1051 } 1052 error = nfscl_request(nd, vp, p, cred, stuff); 1053 if (error) 1054 return (error); 1055 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1056 error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff); 1057 if ((nd->nd_flag & ND_NFSV4) && !error) 1058 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1059 if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error) 1060 error = nfscl_postop_attr(nd, rnap, attrflagp, stuff); 1061 mbuf_freem(nd->nd_mrep); 1062 if (nd->nd_repstat && !error) 1063 error = nd->nd_repstat; 1064 return (error); 1065} 1066 1067/* 1068 * nfs lookup rpc 1069 */ 1070APPLESTATIC int 1071nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred, 1072 NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap, 1073 struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff) 1074{ 1075 u_int32_t *tl; 1076 struct nfsrv_descript nfsd, *nd = &nfsd; 1077 struct nfsmount *nmp; 1078 struct nfsnode *np; 1079 struct nfsfh *nfhp; 1080 nfsattrbit_t attrbits; 1081 int error = 0, lookupp = 0; 1082 1083 *attrflagp = 0; 1084 *dattrflagp = 0; 1085 if (vnode_vtype(dvp) != VDIR) 1086 return (ENOTDIR); 1087 nmp = VFSTONFS(vnode_mount(dvp)); 1088 if (len > NFS_MAXNAMLEN) 1089 return (ENAMETOOLONG); 1090 if (NFSHASNFSV4(nmp) && len == 1 && 1091 name[0] == '.') { 1092 /* 1093 * Just return the current dir's fh. 1094 */ 1095 np = VTONFS(dvp); 1096 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1097 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1098 nfhp->nfh_len = np->n_fhp->nfh_len; 1099 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1100 *nfhpp = nfhp; 1101 return (0); 1102 } 1103 if (NFSHASNFSV4(nmp) && len == 2 && 1104 name[0] == '.' && name[1] == '.') { 1105 lookupp = 1; 1106 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp); 1107 } else { 1108 NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp); 1109 (void) nfsm_strtom(nd, name, len); 1110 } 1111 if (nd->nd_flag & ND_NFSV4) { 1112 NFSGETATTR_ATTRBIT(&attrbits); 1113 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1114 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1115 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1116 (void) nfsrv_putattrbit(nd, &attrbits); 1117 } 1118 error = nfscl_request(nd, dvp, p, cred, stuff); 1119 if (error) 1120 return (error); 1121 if (nd->nd_repstat) { 1122 /* 1123 * When an NFSv4 Lookupp returns ENOENT, it means that 1124 * the lookup is at the root of an fs, so return this dir. 1125 */ 1126 if (nd->nd_repstat == NFSERR_NOENT && lookupp) { 1127 np = VTONFS(dvp); 1128 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + 1129 np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); 1130 nfhp->nfh_len = np->n_fhp->nfh_len; 1131 NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); 1132 *nfhpp = nfhp; 1133 mbuf_freem(nd->nd_mrep); 1134 return (0); 1135 } 1136 if (nd->nd_flag & ND_NFSV3) 1137 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1138 else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 1139 ND_NFSV4) { 1140 /* Load the directory attributes. */ 1141 error = nfsm_loadattr(nd, dnap); 1142 if (error == 0) 1143 *dattrflagp = 1; 1144 } 1145 goto nfsmout; 1146 } 1147 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 1148 /* Load the directory attributes. */ 1149 error = nfsm_loadattr(nd, dnap); 1150 if (error != 0) 1151 goto nfsmout; 1152 *dattrflagp = 1; 1153 /* Skip over the Lookup and GetFH operation status values. */ 1154 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1155 } 1156 error = nfsm_getfh(nd, nfhpp); 1157 if (error) 1158 goto nfsmout; 1159 1160 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1161 if ((nd->nd_flag & ND_NFSV3) && !error) 1162 error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); 1163nfsmout: 1164 mbuf_freem(nd->nd_mrep); 1165 if (!error && nd->nd_repstat) 1166 error = nd->nd_repstat; 1167 return (error); 1168} 1169 1170/* 1171 * Do a readlink rpc. 1172 */ 1173APPLESTATIC int 1174nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred, 1175 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1176{ 1177 u_int32_t *tl; 1178 struct nfsrv_descript nfsd, *nd = &nfsd; 1179 struct nfsnode *np = VTONFS(vp); 1180 nfsattrbit_t attrbits; 1181 int error, len, cangetattr = 1; 1182 1183 *attrflagp = 0; 1184 NFSCL_REQSTART(nd, NFSPROC_READLINK, vp); 1185 if (nd->nd_flag & ND_NFSV4) { 1186 /* 1187 * And do a Getattr op. 1188 */ 1189 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1190 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1191 NFSGETATTR_ATTRBIT(&attrbits); 1192 (void) nfsrv_putattrbit(nd, &attrbits); 1193 } 1194 error = nfscl_request(nd, vp, p, cred, stuff); 1195 if (error) 1196 return (error); 1197 if (nd->nd_flag & ND_NFSV3) 1198 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1199 if (!nd->nd_repstat && !error) { 1200 NFSM_STRSIZ(len, NFS_MAXPATHLEN); 1201 /* 1202 * This seems weird to me, but must have been added to 1203 * FreeBSD for some reason. The only thing I can think of 1204 * is that there was/is some server that replies with 1205 * more link data than it should? 1206 */ 1207 if (len == NFS_MAXPATHLEN) { 1208 NFSLOCKNODE(np); 1209 if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) { 1210 len = np->n_size; 1211 cangetattr = 0; 1212 } 1213 NFSUNLOCKNODE(np); 1214 } 1215 error = nfsm_mbufuio(nd, uiop, len); 1216 if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr) 1217 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1218 } 1219 if (nd->nd_repstat && !error) 1220 error = nd->nd_repstat; 1221nfsmout: 1222 mbuf_freem(nd->nd_mrep); 1223 return (error); 1224} 1225 1226/* 1227 * Read operation. 1228 */ 1229APPLESTATIC int 1230nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred, 1231 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1232{ 1233 int error, expireret = 0, retrycnt; 1234 u_int32_t clidrev = 0; 1235 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1236 struct nfsnode *np = VTONFS(vp); 1237 struct ucred *newcred; 1238 struct nfsfh *nfhp = NULL; 1239 nfsv4stateid_t stateid; 1240 void *lckp; 1241 1242 if (nmp->nm_clp != NULL) 1243 clidrev = nmp->nm_clp->nfsc_clientidrev; 1244 newcred = cred; 1245 if (NFSHASNFSV4(nmp)) { 1246 nfhp = np->n_fhp; 1247 newcred = NFSNEWCRED(cred); 1248 } 1249 retrycnt = 0; 1250 do { 1251 lckp = NULL; 1252 if (NFSHASNFSV4(nmp)) 1253 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1254 NFSV4OPEN_ACCESSREAD, newcred, p, &stateid, &lckp); 1255 error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap, 1256 attrflagp, stuff); 1257 if (error == NFSERR_STALESTATEID) 1258 nfscl_initiate_recovery(nmp->nm_clp); 1259 if (lckp != NULL) 1260 nfscl_lockderef(lckp); 1261 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1262 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1263 error == NFSERR_OLDSTATEID) { 1264 (void) nfs_catnap(PZERO, error, "nfs_read"); 1265 } else if ((error == NFSERR_EXPIRED || 1266 error == NFSERR_BADSTATEID) && clidrev != 0) { 1267 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1268 } 1269 retrycnt++; 1270 } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1271 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1272 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1273 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1274 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1275 if (error && retrycnt >= 4) 1276 error = EIO; 1277 if (NFSHASNFSV4(nmp)) 1278 NFSFREECRED(newcred); 1279 return (error); 1280} 1281 1282/* 1283 * The actual read RPC. 1284 */ 1285static int 1286nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred, 1287 nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap, 1288 int *attrflagp, void *stuff) 1289{ 1290 u_int32_t *tl; 1291 int error = 0, len, retlen, tsiz, eof = 0; 1292 struct nfsrv_descript nfsd; 1293 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1294 struct nfsrv_descript *nd = &nfsd; 1295 int rsize; 1296 off_t tmp_off; 1297 1298 *attrflagp = 0; 1299 tsiz = uio_uio_resid(uiop); 1300 tmp_off = uiop->uio_offset + tsiz; 1301 NFSLOCKMNT(nmp); 1302 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1303 NFSUNLOCKMNT(nmp); 1304 return (EFBIG); 1305 } 1306 rsize = nmp->nm_rsize; 1307 NFSUNLOCKMNT(nmp); 1308 nd->nd_mrep = NULL; 1309 while (tsiz > 0) { 1310 *attrflagp = 0; 1311 len = (tsiz > rsize) ? rsize : tsiz; 1312 NFSCL_REQSTART(nd, NFSPROC_READ, vp); 1313 if (nd->nd_flag & ND_NFSV4) 1314 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1315 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1316 if (nd->nd_flag & ND_NFSV2) { 1317 *tl++ = txdr_unsigned(uiop->uio_offset); 1318 *tl++ = txdr_unsigned(len); 1319 *tl = 0; 1320 } else { 1321 txdr_hyper(uiop->uio_offset, tl); 1322 *(tl + 2) = txdr_unsigned(len); 1323 } 1324 /* 1325 * Since I can't do a Getattr for NFSv4 for Write, there 1326 * doesn't seem any point in doing one here, either. 1327 * (See the comment in nfsrpc_writerpc() for more info.) 1328 */ 1329 error = nfscl_request(nd, vp, p, cred, stuff); 1330 if (error) 1331 return (error); 1332 if (nd->nd_flag & ND_NFSV3) { 1333 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 1334 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 1335 error = nfsm_loadattr(nd, nap); 1336 if (!error) 1337 *attrflagp = 1; 1338 } 1339 if (nd->nd_repstat || error) { 1340 if (!error) 1341 error = nd->nd_repstat; 1342 goto nfsmout; 1343 } 1344 if (nd->nd_flag & ND_NFSV3) { 1345 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1346 eof = fxdr_unsigned(int, *(tl + 1)); 1347 } else if (nd->nd_flag & ND_NFSV4) { 1348 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1349 eof = fxdr_unsigned(int, *tl); 1350 } 1351 NFSM_STRSIZ(retlen, len); 1352 error = nfsm_mbufuio(nd, uiop, retlen); 1353 if (error) 1354 goto nfsmout; 1355 mbuf_freem(nd->nd_mrep); 1356 nd->nd_mrep = NULL; 1357 tsiz -= retlen; 1358 if (!(nd->nd_flag & ND_NFSV2)) { 1359 if (eof || retlen == 0) 1360 tsiz = 0; 1361 } else if (retlen < len) 1362 tsiz = 0; 1363 } 1364 return (0); 1365nfsmout: 1366 if (nd->nd_mrep != NULL) 1367 mbuf_freem(nd->nd_mrep); 1368 return (error); 1369} 1370 1371/* 1372 * nfs write operation 1373 * When called_from_strategy != 0, it should return EIO for an error that 1374 * indicates recovery is in progress, so that the buffer will be left 1375 * dirty and be written back to the server later. If it loops around, 1376 * the recovery thread could get stuck waiting for the buffer and recovery 1377 * will then deadlock. 1378 */ 1379APPLESTATIC int 1380nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, 1381 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 1382 void *stuff, int called_from_strategy) 1383{ 1384 int error, expireret = 0, retrycnt, nostateid; 1385 u_int32_t clidrev = 0; 1386 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1387 struct nfsnode *np = VTONFS(vp); 1388 struct ucred *newcred; 1389 struct nfsfh *nfhp = NULL; 1390 nfsv4stateid_t stateid; 1391 void *lckp; 1392 1393 *must_commit = 0; 1394 if (nmp->nm_clp != NULL) 1395 clidrev = nmp->nm_clp->nfsc_clientidrev; 1396 newcred = cred; 1397 if (NFSHASNFSV4(nmp)) { 1398 newcred = NFSNEWCRED(cred); 1399 nfhp = np->n_fhp; 1400 } 1401 retrycnt = 0; 1402 do { 1403 lckp = NULL; 1404 nostateid = 0; 1405 if (NFSHASNFSV4(nmp)) { 1406 (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, 1407 NFSV4OPEN_ACCESSWRITE, newcred, p, &stateid, &lckp); 1408 if (stateid.other[0] == 0 && stateid.other[1] == 0 && 1409 stateid.other[2] == 0) { 1410 nostateid = 1; 1411 NFSCL_DEBUG(1, "stateid0 in write\n"); 1412 } 1413 } 1414 1415 /* 1416 * If there is no stateid for NFSv4, it means this is an 1417 * extraneous write after close. Basically a poorly 1418 * implemented buffer cache. Just don't do the write. 1419 */ 1420 if (nostateid) 1421 error = 0; 1422 else 1423 error = nfsrpc_writerpc(vp, uiop, iomode, must_commit, 1424 newcred, &stateid, p, nap, attrflagp, stuff); 1425 if (error == NFSERR_STALESTATEID) 1426 nfscl_initiate_recovery(nmp->nm_clp); 1427 if (lckp != NULL) 1428 nfscl_lockderef(lckp); 1429 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 1430 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1431 error == NFSERR_OLDSTATEID) { 1432 (void) nfs_catnap(PZERO, error, "nfs_write"); 1433 } else if ((error == NFSERR_EXPIRED || 1434 error == NFSERR_BADSTATEID) && clidrev != 0) { 1435 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1436 } 1437 retrycnt++; 1438 } while (error == NFSERR_GRACE || error == NFSERR_DELAY || 1439 ((error == NFSERR_STALESTATEID || 1440 error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) || 1441 (error == NFSERR_OLDSTATEID && retrycnt < 20) || 1442 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1443 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1444 if (error != 0 && (retrycnt >= 4 || 1445 ((error == NFSERR_STALESTATEID || 1446 error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0))) 1447 error = EIO; 1448 if (NFSHASNFSV4(nmp)) 1449 NFSFREECRED(newcred); 1450 return (error); 1451} 1452 1453/* 1454 * The actual write RPC. 1455 */ 1456static int 1457nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, 1458 int *must_commit, struct ucred *cred, nfsv4stateid_t *stateidp, 1459 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 1460{ 1461 u_int32_t *tl; 1462 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 1463 struct nfsnode *np = VTONFS(vp); 1464 int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; 1465 int wccflag = 0, wsize; 1466 int32_t backup; 1467 struct nfsrv_descript nfsd; 1468 struct nfsrv_descript *nd = &nfsd; 1469 nfsattrbit_t attrbits; 1470 off_t tmp_off; 1471 1472 KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1")); 1473 *attrflagp = 0; 1474 tsiz = uio_uio_resid(uiop); 1475 tmp_off = uiop->uio_offset + tsiz; 1476 NFSLOCKMNT(nmp); 1477 if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { 1478 NFSUNLOCKMNT(nmp); 1479 return (EFBIG); 1480 } 1481 wsize = nmp->nm_wsize; 1482 NFSUNLOCKMNT(nmp); 1483 nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ 1484 nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ 1485 while (tsiz > 0) { 1486 *attrflagp = 0; 1487 len = (tsiz > wsize) ? wsize : tsiz; 1488 NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); 1489 if (nd->nd_flag & ND_NFSV4) { 1490 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 1491 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); 1492 txdr_hyper(uiop->uio_offset, tl); 1493 tl += 2; 1494 *tl++ = txdr_unsigned(*iomode); 1495 *tl = txdr_unsigned(len); 1496 } else if (nd->nd_flag & ND_NFSV3) { 1497 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); 1498 txdr_hyper(uiop->uio_offset, tl); 1499 tl += 2; 1500 *tl++ = txdr_unsigned(len); 1501 *tl++ = txdr_unsigned(*iomode); 1502 *tl = txdr_unsigned(len); 1503 } else { 1504 u_int32_t x; 1505 1506 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1507 /* 1508 * Not sure why someone changed this, since the 1509 * RFC clearly states that "beginoffset" and 1510 * "totalcount" are ignored, but it wouldn't 1511 * surprise me if there's a busted server out there. 1512 */ 1513 /* Set both "begin" and "current" to non-garbage. */ 1514 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1515 *tl++ = x; /* "begin offset" */ 1516 *tl++ = x; /* "current offset" */ 1517 x = txdr_unsigned(len); 1518 *tl++ = x; /* total to this offset */ 1519 *tl = x; /* size of this write */ 1520 1521 } 1522 nfsm_uiombuf(nd, uiop, len); 1523 /* 1524 * Although it is tempting to do a normal Getattr Op in the 1525 * NFSv4 compound, the result can be a nearly hung client 1526 * system if the Getattr asks for Owner and/or OwnerGroup. 1527 * It occurs when the client can't map either the Owner or 1528 * Owner_group name in the Getattr reply to a uid/gid. When 1529 * there is a cache miss, the kernel does an upcall to the 1530 * nfsuserd. Then, it can try and read the local /etc/passwd 1531 * or /etc/group file. It can then block in getnewbuf(), 1532 * waiting for dirty writes to be pushed to the NFS server. 1533 * The only reason this doesn't result in a complete 1534 * deadlock, is that the upcall times out and allows 1535 * the write to complete. However, progress is so slow 1536 * that it might just as well be deadlocked. 1537 * As such, we get the rest of the attributes, but not 1538 * Owner or Owner_group. 1539 * nb: nfscl_loadattrcache() needs to be told that these 1540 * partial attributes from a write rpc are being 1541 * passed in, via a argument flag. 1542 */ 1543 if (nd->nd_flag & ND_NFSV4) { 1544 NFSWRITEGETATTR_ATTRBIT(&attrbits); 1545 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1546 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1547 (void) nfsrv_putattrbit(nd, &attrbits); 1548 } 1549 error = nfscl_request(nd, vp, p, cred, stuff); 1550 if (error) 1551 return (error); 1552 if (nd->nd_repstat) { 1553 /* 1554 * In case the rpc gets retried, roll 1555 * the uio fileds changed by nfsm_uiombuf() 1556 * back. 1557 */ 1558 uiop->uio_offset -= len; 1559 uio_uio_resid_add(uiop, len); 1560 uio_iov_base_add(uiop, -len); 1561 uio_iov_len_add(uiop, len); 1562 } 1563 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1564 error = nfscl_wcc_data(nd, vp, nap, attrflagp, 1565 &wccflag, stuff); 1566 if (error) 1567 goto nfsmout; 1568 } 1569 if (!nd->nd_repstat) { 1570 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1571 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1572 + NFSX_VERF); 1573 rlen = fxdr_unsigned(int, *tl++); 1574 if (rlen == 0) { 1575 error = NFSERR_IO; 1576 goto nfsmout; 1577 } else if (rlen < len) { 1578 backup = len - rlen; 1579 uio_iov_base_add(uiop, -(backup)); 1580 uio_iov_len_add(uiop, backup); 1581 uiop->uio_offset -= backup; 1582 uio_uio_resid_add(uiop, backup); 1583 len = rlen; 1584 } 1585 commit = fxdr_unsigned(int, *tl++); 1586 1587 /* 1588 * Return the lowest committment level 1589 * obtained by any of the RPCs. 1590 */ 1591 if (committed == NFSWRITE_FILESYNC) 1592 committed = commit; 1593 else if (committed == NFSWRITE_DATASYNC && 1594 commit == NFSWRITE_UNSTABLE) 1595 committed = commit; 1596 NFSLOCKMNT(nmp); 1597 if (!NFSHASWRITEVERF(nmp)) { 1598 NFSBCOPY((caddr_t)tl, 1599 (caddr_t)&nmp->nm_verf[0], 1600 NFSX_VERF); 1601 NFSSETWRITEVERF(nmp); 1602 } else if (NFSBCMP(tl, nmp->nm_verf, 1603 NFSX_VERF)) { 1604 *must_commit = 1; 1605 NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); 1606 } 1607 NFSUNLOCKMNT(nmp); 1608 } 1609 if (nd->nd_flag & ND_NFSV4) 1610 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1611 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { 1612 error = nfsm_loadattr(nd, nap); 1613 if (!error) 1614 *attrflagp = NFS_LATTR_NOSHRINK; 1615 } 1616 } else { 1617 error = nd->nd_repstat; 1618 } 1619 if (error) 1620 goto nfsmout; 1621 NFSWRITERPC_SETTIME(wccflag, np, (nd->nd_flag & ND_NFSV4)); 1622 mbuf_freem(nd->nd_mrep); 1623 nd->nd_mrep = NULL; 1624 tsiz -= len; 1625 } 1626nfsmout: 1627 if (nd->nd_mrep != NULL) 1628 mbuf_freem(nd->nd_mrep); 1629 *iomode = committed; 1630 if (nd->nd_repstat && !error) 1631 error = nd->nd_repstat; 1632 return (error); 1633} 1634 1635/* 1636 * nfs mknod rpc 1637 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1638 * mode set to specify the file type and the size field for rdev. 1639 */ 1640APPLESTATIC int 1641nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1642 u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, 1643 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1644 int *attrflagp, int *dattrflagp, void *dstuff) 1645{ 1646 u_int32_t *tl; 1647 int error = 0; 1648 struct nfsrv_descript nfsd, *nd = &nfsd; 1649 nfsattrbit_t attrbits; 1650 1651 *nfhpp = NULL; 1652 *attrflagp = 0; 1653 *dattrflagp = 0; 1654 if (namelen > NFS_MAXNAMLEN) 1655 return (ENAMETOOLONG); 1656 NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); 1657 if (nd->nd_flag & ND_NFSV4) { 1658 if (vtyp == VBLK || vtyp == VCHR) { 1659 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1660 *tl++ = vtonfsv34_type(vtyp); 1661 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1662 *tl = txdr_unsigned(NFSMINOR(rdev)); 1663 } else { 1664 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1665 *tl = vtonfsv34_type(vtyp); 1666 } 1667 } 1668 (void) nfsm_strtom(nd, name, namelen); 1669 if (nd->nd_flag & ND_NFSV3) { 1670 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1671 *tl = vtonfsv34_type(vtyp); 1672 } 1673 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 1674 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1675 if ((nd->nd_flag & ND_NFSV3) && 1676 (vtyp == VCHR || vtyp == VBLK)) { 1677 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1678 *tl++ = txdr_unsigned(NFSMAJOR(rdev)); 1679 *tl = txdr_unsigned(NFSMINOR(rdev)); 1680 } 1681 if (nd->nd_flag & ND_NFSV4) { 1682 NFSGETATTR_ATTRBIT(&attrbits); 1683 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1684 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1685 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1686 (void) nfsrv_putattrbit(nd, &attrbits); 1687 } 1688 if (nd->nd_flag & ND_NFSV2) 1689 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); 1690 error = nfscl_request(nd, dvp, p, cred, dstuff); 1691 if (error) 1692 return (error); 1693 if (nd->nd_flag & ND_NFSV4) 1694 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1695 if (!nd->nd_repstat) { 1696 if (nd->nd_flag & ND_NFSV4) { 1697 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1698 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1699 if (error) 1700 goto nfsmout; 1701 } 1702 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1703 if (error) 1704 goto nfsmout; 1705 } 1706 if (nd->nd_flag & ND_NFSV3) 1707 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1708 if (!error && nd->nd_repstat) 1709 error = nd->nd_repstat; 1710nfsmout: 1711 mbuf_freem(nd->nd_mrep); 1712 return (error); 1713} 1714 1715/* 1716 * nfs file create call 1717 * Mostly just call the approriate routine. (I separated out v4, so that 1718 * error recovery wouldn't be as difficult.) 1719 */ 1720APPLESTATIC int 1721nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1722 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1723 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1724 int *attrflagp, int *dattrflagp, void *dstuff) 1725{ 1726 int error = 0, newone, expireret = 0, retrycnt, unlocked; 1727 struct nfsclowner *owp; 1728 struct nfscldeleg *dp; 1729 struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); 1730 u_int32_t clidrev; 1731 1732 if (NFSHASNFSV4(nmp)) { 1733 retrycnt = 0; 1734 do { 1735 dp = NULL; 1736 error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | 1737 NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, 1738 NULL, 1); 1739 if (error) 1740 return (error); 1741 if (nmp->nm_clp != NULL) 1742 clidrev = nmp->nm_clp->nfsc_clientidrev; 1743 else 1744 clidrev = 0; 1745 error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, fmode, 1746 owp, &dp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1747 dstuff, &unlocked); 1748 /* 1749 * There is no need to invalidate cached attributes here, 1750 * since new post-delegation issue attributes are always 1751 * returned by nfsrpc_createv4() and these will update the 1752 * attribute cache. 1753 */ 1754 if (dp != NULL) 1755 (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, 1756 (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); 1757 nfscl_ownerrelease(owp, error, newone, unlocked); 1758 if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1759 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY) { 1760 (void) nfs_catnap(PZERO, error, "nfs_open"); 1761 } else if ((error == NFSERR_EXPIRED || 1762 error == NFSERR_BADSTATEID) && clidrev != 0) { 1763 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 1764 retrycnt++; 1765 } 1766 } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || 1767 error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || 1768 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 1769 expireret == 0 && clidrev != 0 && retrycnt < 4)); 1770 if (error && retrycnt >= 4) 1771 error = EIO; 1772 } else { 1773 error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, 1774 fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, 1775 dstuff); 1776 } 1777 return (error); 1778} 1779 1780/* 1781 * The create rpc for v2 and 3. 1782 */ 1783static int 1784nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1785 nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, 1786 struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, 1787 int *attrflagp, int *dattrflagp, void *dstuff) 1788{ 1789 u_int32_t *tl; 1790 int error = 0; 1791 struct nfsrv_descript nfsd, *nd = &nfsd; 1792 1793 *nfhpp = NULL; 1794 *attrflagp = 0; 1795 *dattrflagp = 0; 1796 if (namelen > NFS_MAXNAMLEN) 1797 return (ENAMETOOLONG); 1798 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1799 (void) nfsm_strtom(nd, name, namelen); 1800 if (nd->nd_flag & ND_NFSV3) { 1801 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1802 if (fmode & O_EXCL) { 1803 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1804 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1805 *tl++ = cverf.lval[0]; 1806 *tl = cverf.lval[1]; 1807 } else { 1808 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1809 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1810 } 1811 } else { 1812 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); 1813 } 1814 error = nfscl_request(nd, dvp, p, cred, dstuff); 1815 if (error) 1816 return (error); 1817 if (nd->nd_repstat == 0) { 1818 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1819 if (error) 1820 goto nfsmout; 1821 } 1822 if (nd->nd_flag & ND_NFSV3) 1823 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 1824 if (nd->nd_repstat != 0 && error == 0) 1825 error = nd->nd_repstat; 1826nfsmout: 1827 mbuf_freem(nd->nd_mrep); 1828 return (error); 1829} 1830 1831static int 1832nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, 1833 nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, 1834 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 1835 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 1836 int *dattrflagp, void *dstuff, int *unlockedp) 1837{ 1838 u_int32_t *tl; 1839 int error = 0, deleg, newone, ret, acesize, limitby; 1840 struct nfsrv_descript nfsd, *nd = &nfsd; 1841 struct nfsclopen *op; 1842 struct nfscldeleg *dp = NULL; 1843 struct nfsnode *np; 1844 struct nfsfh *nfhp; 1845 nfsattrbit_t attrbits; 1846 nfsv4stateid_t stateid; 1847 u_int32_t rflags; 1848 1849 np = VTONFS(dvp); 1850 *unlockedp = 0; 1851 *nfhpp = NULL; 1852 *dpp = NULL; 1853 *attrflagp = 0; 1854 *dattrflagp = 0; 1855 if (namelen > NFS_MAXNAMLEN) 1856 return (ENAMETOOLONG); 1857 NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); 1858 /* 1859 * For V4, this is actually an Open op. 1860 */ 1861 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1862 *tl++ = txdr_unsigned(owp->nfsow_seqid); 1863 *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | 1864 NFSV4OPEN_ACCESSREAD); 1865 *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); 1866 *tl++ = owp->nfsow_clp->nfsc_clientid.lval[0]; 1867 *tl = owp->nfsow_clp->nfsc_clientid.lval[1]; 1868 (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); 1869 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1870 *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); 1871 if (fmode & O_EXCL) { 1872 *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); 1873 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 1874 *tl++ = cverf.lval[0]; 1875 *tl = cverf.lval[1]; 1876 } else { 1877 *tl = txdr_unsigned(NFSCREATE_UNCHECKED); 1878 nfscl_fillsattr(nd, vap, dvp, 0, 0); 1879 } 1880 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1881 *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); 1882 (void) nfsm_strtom(nd, name, namelen); 1883 /* Get the new file's handle and attributes. */ 1884 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1885 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 1886 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1887 NFSGETATTR_ATTRBIT(&attrbits); 1888 (void) nfsrv_putattrbit(nd, &attrbits); 1889 /* Get the directory's post-op attributes. */ 1890 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1891 *tl = txdr_unsigned(NFSV4OP_PUTFH); 1892 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0); 1893 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 1894 *tl = txdr_unsigned(NFSV4OP_GETATTR); 1895 (void) nfsrv_putattrbit(nd, &attrbits); 1896 error = nfscl_request(nd, dvp, p, cred, dstuff); 1897 if (error) 1898 return (error); 1899 NFSCL_INCRSEQID(owp->nfsow_seqid, nd); 1900 if (nd->nd_repstat == 0) { 1901 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1902 6 * NFSX_UNSIGNED); 1903 stateid.seqid = *tl++; 1904 stateid.other[0] = *tl++; 1905 stateid.other[1] = *tl++; 1906 stateid.other[2] = *tl; 1907 rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); 1908 (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 1909 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1910 deleg = fxdr_unsigned(int, *tl); 1911 if (deleg == NFSV4OPEN_DELEGATEREAD || 1912 deleg == NFSV4OPEN_DELEGATEWRITE) { 1913 if (!(owp->nfsow_clp->nfsc_flags & 1914 NFSCLFLAGS_FIRSTDELEG)) 1915 owp->nfsow_clp->nfsc_flags |= 1916 (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); 1917 MALLOC(dp, struct nfscldeleg *, 1918 sizeof (struct nfscldeleg) + NFSX_V4FHMAX, 1919 M_NFSCLDELEG, M_WAITOK); 1920 LIST_INIT(&dp->nfsdl_owner); 1921 LIST_INIT(&dp->nfsdl_lock); 1922 dp->nfsdl_clp = owp->nfsow_clp; 1923 newnfs_copyincred(cred, &dp->nfsdl_cred); 1924 nfscl_lockinit(&dp->nfsdl_rwlock); 1925 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 1926 NFSX_UNSIGNED); 1927 dp->nfsdl_stateid.seqid = *tl++; 1928 dp->nfsdl_stateid.other[0] = *tl++; 1929 dp->nfsdl_stateid.other[1] = *tl++; 1930 dp->nfsdl_stateid.other[2] = *tl++; 1931 ret = fxdr_unsigned(int, *tl); 1932 if (deleg == NFSV4OPEN_DELEGATEWRITE) { 1933 dp->nfsdl_flags = NFSCLDL_WRITE; 1934 /* 1935 * Indicates how much the file can grow. 1936 */ 1937 NFSM_DISSECT(tl, u_int32_t *, 1938 3 * NFSX_UNSIGNED); 1939 limitby = fxdr_unsigned(int, *tl++); 1940 switch (limitby) { 1941 case NFSV4OPEN_LIMITSIZE: 1942 dp->nfsdl_sizelimit = fxdr_hyper(tl); 1943 break; 1944 case NFSV4OPEN_LIMITBLOCKS: 1945 dp->nfsdl_sizelimit = 1946 fxdr_unsigned(u_int64_t, *tl++); 1947 dp->nfsdl_sizelimit *= 1948 fxdr_unsigned(u_int64_t, *tl); 1949 break; 1950 default: 1951 error = NFSERR_BADXDR; 1952 goto nfsmout; 1953 }; 1954 } else { 1955 dp->nfsdl_flags = NFSCLDL_READ; 1956 } 1957 if (ret) 1958 dp->nfsdl_flags |= NFSCLDL_RECALL; 1959 error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, 1960 &acesize, p); 1961 if (error) 1962 goto nfsmout; 1963 } else if (deleg != NFSV4OPEN_DELEGATENONE) { 1964 error = NFSERR_BADXDR; 1965 goto nfsmout; 1966 } 1967 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 1968 if (error) 1969 goto nfsmout; 1970 /* Get rid of the PutFH and Getattr status values. */ 1971 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1972 /* Load the directory attributes. */ 1973 error = nfsm_loadattr(nd, dnap); 1974 if (error) 1975 goto nfsmout; 1976 *dattrflagp = 1; 1977 if (dp != NULL && *attrflagp) { 1978 dp->nfsdl_change = nnap->na_filerev; 1979 dp->nfsdl_modtime = nnap->na_mtime; 1980 dp->nfsdl_flags |= NFSCLDL_MODTIMESET; 1981 } 1982 /* 1983 * We can now complete the Open state. 1984 */ 1985 nfhp = *nfhpp; 1986 if (dp != NULL) { 1987 dp->nfsdl_fhlen = nfhp->nfh_len; 1988 NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); 1989 } 1990 /* 1991 * Get an Open structure that will be 1992 * attached to the OpenOwner, acquired already. 1993 */ 1994 error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, 1995 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, 1996 cred, p, NULL, &op, &newone, NULL, 0); 1997 if (error) 1998 goto nfsmout; 1999 op->nfso_stateid = stateid; 2000 newnfs_copyincred(cred, &op->nfso_cred); 2001 if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { 2002 do { 2003 ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, 2004 nfhp->nfh_len, op, cred, p); 2005 if (ret == NFSERR_DELAY) 2006 (void) nfs_catnap(PZERO, ret, "nfs_create"); 2007 } while (ret == NFSERR_DELAY); 2008 error = ret; 2009 } 2010 2011 /* 2012 * If the server is handing out delegations, but we didn't 2013 * get one because an OpenConfirm was required, try the 2014 * Open again, to get a delegation. This is a harmless no-op, 2015 * from a server's point of view. 2016 */ 2017 if ((rflags & NFSV4OPEN_RESULTCONFIRM) && 2018 (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && 2019 !error && dp == NULL) { 2020 do { 2021 ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, 2022 np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 2023 nfhp->nfh_fh, nfhp->nfh_len, 2024 (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, 2025 name, namelen, &dp, 0, 0x0, cred, p, 0, 1); 2026 if (ret == NFSERR_DELAY) 2027 (void) nfs_catnap(PZERO, ret, "nfs_crt2"); 2028 } while (ret == NFSERR_DELAY); 2029 if (ret) { 2030 if (dp != NULL) 2031 FREE((caddr_t)dp, M_NFSCLDELEG); 2032 if (ret == NFSERR_STALECLIENTID || 2033 ret == NFSERR_STALEDONTRECOVER) 2034 error = ret; 2035 } 2036 } 2037 nfscl_openrelease(op, error, newone); 2038 *unlockedp = 1; 2039 } 2040 if (nd->nd_repstat != 0 && error == 0) 2041 error = nd->nd_repstat; 2042 if (error == NFSERR_STALECLIENTID) 2043 nfscl_initiate_recovery(owp->nfsow_clp); 2044nfsmout: 2045 if (!error) 2046 *dpp = dp; 2047 else if (dp != NULL) 2048 FREE((caddr_t)dp, M_NFSCLDELEG); 2049 mbuf_freem(nd->nd_mrep); 2050 return (error); 2051} 2052 2053/* 2054 * Nfs remove rpc 2055 */ 2056APPLESTATIC int 2057nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, 2058 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, 2059 void *dstuff) 2060{ 2061 u_int32_t *tl; 2062 struct nfsrv_descript nfsd, *nd = &nfsd; 2063 struct nfsnode *np; 2064 struct nfsmount *nmp; 2065 nfsv4stateid_t dstateid; 2066 int error, ret = 0, i; 2067 2068 *dattrflagp = 0; 2069 if (namelen > NFS_MAXNAMLEN) 2070 return (ENAMETOOLONG); 2071 nmp = VFSTONFS(vnode_mount(dvp)); 2072tryagain: 2073 if (NFSHASNFSV4(nmp) && ret == 0) { 2074 ret = nfscl_removedeleg(vp, p, &dstateid); 2075 if (ret == 1) { 2076 NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); 2077 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 2078 NFSX_UNSIGNED); 2079 *tl++ = dstateid.seqid; 2080 *tl++ = dstateid.other[0]; 2081 *tl++ = dstateid.other[1]; 2082 *tl++ = dstateid.other[2]; 2083 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2084 np = VTONFS(dvp); 2085 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2086 np->n_fhp->nfh_len, 0); 2087 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2088 *tl = txdr_unsigned(NFSV4OP_REMOVE); 2089 } 2090 } else { 2091 ret = 0; 2092 } 2093 if (ret == 0) 2094 NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); 2095 (void) nfsm_strtom(nd, name, namelen); 2096 error = nfscl_request(nd, dvp, p, cred, dstuff); 2097 if (error) 2098 return (error); 2099 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2100 /* For NFSv4, parse out any Delereturn replies. */ 2101 if (ret > 0 && nd->nd_repstat != 0 && 2102 (nd->nd_flag & ND_NOMOREDATA)) { 2103 /* 2104 * If the Delegreturn failed, try again without 2105 * it. The server will Recall, as required. 2106 */ 2107 mbuf_freem(nd->nd_mrep); 2108 goto tryagain; 2109 } 2110 for (i = 0; i < (ret * 2); i++) { 2111 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2112 ND_NFSV4) { 2113 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2114 if (*(tl + 1)) 2115 nd->nd_flag |= ND_NOMOREDATA; 2116 } 2117 } 2118 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2119 } 2120 if (nd->nd_repstat && !error) 2121 error = nd->nd_repstat; 2122nfsmout: 2123 mbuf_freem(nd->nd_mrep); 2124 return (error); 2125} 2126 2127/* 2128 * Do an nfs rename rpc. 2129 */ 2130APPLESTATIC int 2131nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, 2132 vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, 2133 NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, 2134 int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) 2135{ 2136 u_int32_t *tl; 2137 struct nfsrv_descript nfsd, *nd = &nfsd; 2138 struct nfsmount *nmp; 2139 struct nfsnode *np; 2140 nfsattrbit_t attrbits; 2141 nfsv4stateid_t fdstateid, tdstateid; 2142 int error = 0, ret = 0, gottd = 0, gotfd = 0, i; 2143 2144 *fattrflagp = 0; 2145 *tattrflagp = 0; 2146 nmp = VFSTONFS(vnode_mount(fdvp)); 2147 if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) 2148 return (ENAMETOOLONG); 2149tryagain: 2150 if (NFSHASNFSV4(nmp) && ret == 0) { 2151 ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, 2152 &tdstateid, &gottd, p); 2153 if (gotfd && gottd) { 2154 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); 2155 } else if (gotfd) { 2156 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); 2157 } else if (gottd) { 2158 NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); 2159 } 2160 if (gotfd) { 2161 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2162 *tl++ = fdstateid.seqid; 2163 *tl++ = fdstateid.other[0]; 2164 *tl++ = fdstateid.other[1]; 2165 *tl = fdstateid.other[2]; 2166 if (gottd) { 2167 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2168 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2169 np = VTONFS(tvp); 2170 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2171 np->n_fhp->nfh_len, 0); 2172 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2173 *tl = txdr_unsigned(NFSV4OP_DELEGRETURN); 2174 } 2175 } 2176 if (gottd) { 2177 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2178 *tl++ = tdstateid.seqid; 2179 *tl++ = tdstateid.other[0]; 2180 *tl++ = tdstateid.other[1]; 2181 *tl = tdstateid.other[2]; 2182 } 2183 if (ret > 0) { 2184 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2185 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2186 np = VTONFS(fdvp); 2187 (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, 2188 np->n_fhp->nfh_len, 0); 2189 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2190 *tl = txdr_unsigned(NFSV4OP_SAVEFH); 2191 } 2192 } else { 2193 ret = 0; 2194 } 2195 if (ret == 0) 2196 NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); 2197 if (nd->nd_flag & ND_NFSV4) { 2198 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2199 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2200 NFSWCCATTR_ATTRBIT(&attrbits); 2201 (void) nfsrv_putattrbit(nd, &attrbits); 2202 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2203 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2204 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2205 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2206 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2207 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2208 (void) nfsrv_putattrbit(nd, &attrbits); 2209 nd->nd_flag |= ND_V4WCCATTR; 2210 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2211 *tl = txdr_unsigned(NFSV4OP_RENAME); 2212 } 2213 (void) nfsm_strtom(nd, fnameptr, fnamelen); 2214 if (!(nd->nd_flag & ND_NFSV4)) 2215 (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, 2216 VTONFS(tdvp)->n_fhp->nfh_len, 0); 2217 (void) nfsm_strtom(nd, tnameptr, tnamelen); 2218 error = nfscl_request(nd, fdvp, p, cred, fstuff); 2219 if (error) 2220 return (error); 2221 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 2222 /* For NFSv4, parse out any Delereturn replies. */ 2223 if (ret > 0 && nd->nd_repstat != 0 && 2224 (nd->nd_flag & ND_NOMOREDATA)) { 2225 /* 2226 * If the Delegreturn failed, try again without 2227 * it. The server will Recall, as required. 2228 */ 2229 mbuf_freem(nd->nd_mrep); 2230 goto tryagain; 2231 } 2232 for (i = 0; i < (ret * 2); i++) { 2233 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == 2234 ND_NFSV4) { 2235 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2236 if (*(tl + 1)) { 2237 if (i == 0 && ret > 1) { 2238 /* 2239 * If the Delegreturn failed, try again 2240 * without it. The server will Recall, as 2241 * required. 2242 * If ret > 1, the first iteration of this 2243 * loop is the second DelegReturn result. 2244 */ 2245 mbuf_freem(nd->nd_mrep); 2246 goto tryagain; 2247 } else { 2248 nd->nd_flag |= ND_NOMOREDATA; 2249 } 2250 } 2251 } 2252 } 2253 /* Now, the first wcc attribute reply. */ 2254 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2255 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2256 if (*(tl + 1)) 2257 nd->nd_flag |= ND_NOMOREDATA; 2258 } 2259 error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, 2260 fstuff); 2261 /* and the second wcc attribute reply. */ 2262 if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && 2263 !error) { 2264 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2265 if (*(tl + 1)) 2266 nd->nd_flag |= ND_NOMOREDATA; 2267 } 2268 if (!error) 2269 error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, 2270 NULL, tstuff); 2271 } 2272 if (nd->nd_repstat && !error) 2273 error = nd->nd_repstat; 2274nfsmout: 2275 mbuf_freem(nd->nd_mrep); 2276 return (error); 2277} 2278 2279/* 2280 * nfs hard link create rpc 2281 */ 2282APPLESTATIC int 2283nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, 2284 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2285 struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) 2286{ 2287 u_int32_t *tl; 2288 struct nfsrv_descript nfsd, *nd = &nfsd; 2289 nfsattrbit_t attrbits; 2290 int error = 0; 2291 2292 *attrflagp = 0; 2293 *dattrflagp = 0; 2294 if (namelen > NFS_MAXNAMLEN) 2295 return (ENAMETOOLONG); 2296 NFSCL_REQSTART(nd, NFSPROC_LINK, vp); 2297 if (nd->nd_flag & ND_NFSV4) { 2298 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2299 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2300 } 2301 (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, 2302 VTONFS(dvp)->n_fhp->nfh_len, 0); 2303 if (nd->nd_flag & ND_NFSV4) { 2304 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2305 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2306 NFSWCCATTR_ATTRBIT(&attrbits); 2307 (void) nfsrv_putattrbit(nd, &attrbits); 2308 nd->nd_flag |= ND_V4WCCATTR; 2309 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2310 *tl = txdr_unsigned(NFSV4OP_LINK); 2311 } 2312 (void) nfsm_strtom(nd, name, namelen); 2313 error = nfscl_request(nd, vp, p, cred, dstuff); 2314 if (error) 2315 return (error); 2316 if (nd->nd_flag & ND_NFSV3) { 2317 error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); 2318 if (!error) 2319 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2320 NULL, dstuff); 2321 } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { 2322 /* 2323 * First, parse out the PutFH and Getattr result. 2324 */ 2325 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2326 if (!(*(tl + 1))) 2327 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2328 if (*(tl + 1)) 2329 nd->nd_flag |= ND_NOMOREDATA; 2330 /* 2331 * Get the pre-op attributes. 2332 */ 2333 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2334 } 2335 if (nd->nd_repstat && !error) 2336 error = nd->nd_repstat; 2337nfsmout: 2338 mbuf_freem(nd->nd_mrep); 2339 return (error); 2340} 2341 2342/* 2343 * nfs symbolic link create rpc 2344 */ 2345APPLESTATIC int 2346nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, 2347 struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2348 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2349 int *dattrflagp, void *dstuff) 2350{ 2351 u_int32_t *tl; 2352 struct nfsrv_descript nfsd, *nd = &nfsd; 2353 struct nfsmount *nmp; 2354 int slen, error = 0; 2355 2356 *nfhpp = NULL; 2357 *attrflagp = 0; 2358 *dattrflagp = 0; 2359 nmp = VFSTONFS(vnode_mount(dvp)); 2360 slen = strlen(target); 2361 if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) 2362 return (ENAMETOOLONG); 2363 NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); 2364 if (nd->nd_flag & ND_NFSV4) { 2365 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2366 *tl = txdr_unsigned(NFLNK); 2367 (void) nfsm_strtom(nd, target, slen); 2368 } 2369 (void) nfsm_strtom(nd, name, namelen); 2370 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2371 nfscl_fillsattr(nd, vap, dvp, 0, 0); 2372 if (!(nd->nd_flag & ND_NFSV4)) 2373 (void) nfsm_strtom(nd, target, slen); 2374 if (nd->nd_flag & ND_NFSV2) 2375 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2376 error = nfscl_request(nd, dvp, p, cred, dstuff); 2377 if (error) 2378 return (error); 2379 if (nd->nd_flag & ND_NFSV4) 2380 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2381 if ((nd->nd_flag & ND_NFSV3) && !error) { 2382 if (!nd->nd_repstat) 2383 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2384 if (!error) 2385 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, 2386 NULL, dstuff); 2387 } 2388 if (nd->nd_repstat && !error) 2389 error = nd->nd_repstat; 2390 mbuf_freem(nd->nd_mrep); 2391 /* 2392 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2393 */ 2394 if (error == EEXIST) 2395 error = 0; 2396 return (error); 2397} 2398 2399/* 2400 * nfs make dir rpc 2401 */ 2402APPLESTATIC int 2403nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, 2404 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, 2405 struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, 2406 int *dattrflagp, void *dstuff) 2407{ 2408 u_int32_t *tl; 2409 struct nfsrv_descript nfsd, *nd = &nfsd; 2410 nfsattrbit_t attrbits; 2411 int error = 0; 2412 struct nfsfh *fhp; 2413 2414 *nfhpp = NULL; 2415 *attrflagp = 0; 2416 *dattrflagp = 0; 2417 fhp = VTONFS(dvp)->n_fhp; 2418 if (namelen > NFS_MAXNAMLEN) 2419 return (ENAMETOOLONG); 2420 NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); 2421 if (nd->nd_flag & ND_NFSV4) { 2422 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2423 *tl = txdr_unsigned(NFDIR); 2424 } 2425 (void) nfsm_strtom(nd, name, namelen); 2426 nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); 2427 if (nd->nd_flag & ND_NFSV4) { 2428 NFSGETATTR_ATTRBIT(&attrbits); 2429 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2430 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2431 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2432 (void) nfsrv_putattrbit(nd, &attrbits); 2433 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2434 *tl = txdr_unsigned(NFSV4OP_PUTFH); 2435 (void) nfsm_fhtom(nd, fhp->nfh_fh, fhp->nfh_len, 0); 2436 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2437 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2438 (void) nfsrv_putattrbit(nd, &attrbits); 2439 } 2440 error = nfscl_request(nd, dvp, p, cred, dstuff); 2441 if (error) 2442 return (error); 2443 if (nd->nd_flag & ND_NFSV4) 2444 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2445 if (!nd->nd_repstat && !error) { 2446 if (nd->nd_flag & ND_NFSV4) { 2447 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2448 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 2449 } 2450 if (!error) 2451 error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); 2452 if (error == 0 && (nd->nd_flag & ND_NFSV4) != 0) { 2453 /* Get rid of the PutFH and Getattr status values. */ 2454 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 2455 /* Load the directory attributes. */ 2456 error = nfsm_loadattr(nd, dnap); 2457 if (error == 0) 2458 *dattrflagp = 1; 2459 } 2460 } 2461 if ((nd->nd_flag & ND_NFSV3) && !error) 2462 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2463 if (nd->nd_repstat && !error) 2464 error = nd->nd_repstat; 2465nfsmout: 2466 mbuf_freem(nd->nd_mrep); 2467 /* 2468 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry. 2469 */ 2470 if (error == EEXIST) 2471 error = 0; 2472 return (error); 2473} 2474 2475/* 2476 * nfs remove directory call 2477 */ 2478APPLESTATIC int 2479nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, 2480 NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) 2481{ 2482 struct nfsrv_descript nfsd, *nd = &nfsd; 2483 int error = 0; 2484 2485 *dattrflagp = 0; 2486 if (namelen > NFS_MAXNAMLEN) 2487 return (ENAMETOOLONG); 2488 NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); 2489 (void) nfsm_strtom(nd, name, namelen); 2490 error = nfscl_request(nd, dvp, p, cred, dstuff); 2491 if (error) 2492 return (error); 2493 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) 2494 error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); 2495 if (nd->nd_repstat && !error) 2496 error = nd->nd_repstat; 2497 mbuf_freem(nd->nd_mrep); 2498 /* 2499 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2500 */ 2501 if (error == ENOENT) 2502 error = 0; 2503 return (error); 2504} 2505 2506/* 2507 * Readdir rpc. 2508 * Always returns with either uio_resid unchanged, if you are at the 2509 * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks 2510 * filled in. 2511 * I felt this would allow caching of directory blocks more easily 2512 * than returning a pertially filled block. 2513 * Directory offset cookies: 2514 * Oh my, what to do with them... 2515 * I can think of three ways to deal with them: 2516 * 1 - have the layer above these RPCs maintain a map between logical 2517 * directory byte offsets and the NFS directory offset cookies 2518 * 2 - pass the opaque directory offset cookies up into userland 2519 * and let the libc functions deal with them, via the system call 2520 * 3 - return them to userland in the "struct dirent", so future versions 2521 * of libc can use them and do whatever is necessary to amke things work 2522 * above these rpc calls, in the meantime 2523 * For now, I do #3 by "hiding" the directory offset cookies after the 2524 * d_name field in struct dirent. This is space inside d_reclen that 2525 * will be ignored by anything that doesn't know about them. 2526 * The directory offset cookies are filled in as the last 8 bytes of 2527 * each directory entry, after d_name. Someday, the userland libc 2528 * functions may be able to use these. In the meantime, it satisfies 2529 * OpenBSD's requirements for cookies being returned. 2530 * If expects the directory offset cookie for the read to be in uio_offset 2531 * and returns the one for the next entry after this directory block in 2532 * there, as well. 2533 */ 2534APPLESTATIC int 2535nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2536 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2537 int *eofp, void *stuff) 2538{ 2539 int len, left; 2540 struct dirent *dp = NULL; 2541 u_int32_t *tl; 2542 nfsquad_t cookie, ncookie; 2543 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2544 struct nfsnode *dnp = VTONFS(vp); 2545 struct nfsvattr nfsva; 2546 struct nfsrv_descript nfsd, *nd = &nfsd; 2547 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2548 int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; 2549 long dotfileid, dotdotfileid = 0; 2550 u_int32_t fakefileno = 0xffffffff, rderr; 2551 char *cp; 2552 nfsattrbit_t attrbits, dattrbits; 2553 u_int32_t *tl2 = NULL; 2554 size_t tresid; 2555 2556 KASSERT(uiop->uio_iovcnt == 1 && 2557 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2558 ("nfs readdirrpc bad uio")); 2559 2560 /* 2561 * There is no point in reading a lot more than uio_resid, however 2562 * adding one additional DIRBLKSIZ makes sense. Since uio_resid 2563 * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this 2564 * will never make readsize > nm_readdirsize. 2565 */ 2566 readsize = nmp->nm_readdirsize; 2567 if (readsize > uio_uio_resid(uiop)) 2568 readsize = uio_uio_resid(uiop) + DIRBLKSIZ; 2569 2570 *attrflagp = 0; 2571 if (eofp) 2572 *eofp = 0; 2573 tresid = uio_uio_resid(uiop); 2574 cookie.lval[0] = cookiep->nfsuquad[0]; 2575 cookie.lval[1] = cookiep->nfsuquad[1]; 2576 nd->nd_mrep = NULL; 2577 2578 /* 2579 * For NFSv4, first create the "." and ".." entries. 2580 */ 2581 if (NFSHASNFSV4(nmp)) { 2582 reqsize = 6 * NFSX_UNSIGNED; 2583 NFSGETATTR_ATTRBIT(&dattrbits); 2584 NFSZERO_ATTRBIT(&attrbits); 2585 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 2586 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); 2587 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 2588 NFSATTRBIT_MOUNTEDONFILEID)) { 2589 NFSSETBIT_ATTRBIT(&attrbits, 2590 NFSATTRBIT_MOUNTEDONFILEID); 2591 gotmnton = 1; 2592 } else { 2593 /* 2594 * Must fake it. Use the fileno, except when the 2595 * fsid is != to that of the directory. For that 2596 * case, generate a fake fileno that is not the same. 2597 */ 2598 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 2599 gotmnton = 0; 2600 } 2601 2602 /* 2603 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 2604 */ 2605 if (uiop->uio_offset == 0) { 2606 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 2607 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2608 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 2609 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2610 (void) nfsrv_putattrbit(nd, &attrbits); 2611 error = nfscl_request(nd, vp, p, cred, stuff); 2612 if (error) 2613 return (error); 2614 dotfileid = 0; /* Fake out the compiler. */ 2615 if ((nd->nd_flag & ND_NOMOREDATA) == 0) { 2616 error = nfsm_loadattr(nd, &nfsva); 2617 if (error != 0) 2618 goto nfsmout; 2619 dotfileid = nfsva.na_fileid; 2620 } 2621 if (nd->nd_repstat == 0) { 2622 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2623 len = fxdr_unsigned(int, *(tl + 4)); 2624 if (len > 0 && len <= NFSX_V4FHMAX) 2625 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2626 else 2627 error = EPERM; 2628 if (!error) { 2629 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2630 nfsva.na_mntonfileno = 0xffffffff; 2631 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2632 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2633 NULL, NULL, NULL, p, cred); 2634 if (error) { 2635 dotdotfileid = dotfileid; 2636 } else if (gotmnton) { 2637 if (nfsva.na_mntonfileno != 0xffffffff) 2638 dotdotfileid = nfsva.na_mntonfileno; 2639 else 2640 dotdotfileid = nfsva.na_fileid; 2641 } else if (nfsva.na_filesid[0] == 2642 dnp->n_vattr.na_filesid[0] && 2643 nfsva.na_filesid[1] == 2644 dnp->n_vattr.na_filesid[1]) { 2645 dotdotfileid = nfsva.na_fileid; 2646 } else { 2647 do { 2648 fakefileno--; 2649 } while (fakefileno == 2650 nfsva.na_fileid); 2651 dotdotfileid = fakefileno; 2652 } 2653 } 2654 } else if (nd->nd_repstat == NFSERR_NOENT) { 2655 /* 2656 * Lookupp returns NFSERR_NOENT when we are 2657 * at the root, so just use the current dir. 2658 */ 2659 nd->nd_repstat = 0; 2660 dotdotfileid = dotfileid; 2661 } else { 2662 error = nd->nd_repstat; 2663 } 2664 mbuf_freem(nd->nd_mrep); 2665 if (error) 2666 return (error); 2667 nd->nd_mrep = NULL; 2668 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2669 dp->d_type = DT_DIR; 2670 dp->d_fileno = dotfileid; 2671 dp->d_namlen = 1; 2672 dp->d_name[0] = '.'; 2673 dp->d_name[1] = '\0'; 2674 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2675 /* 2676 * Just make these offset cookie 0. 2677 */ 2678 tl = (u_int32_t *)&dp->d_name[4]; 2679 *tl++ = 0; 2680 *tl = 0; 2681 blksiz += dp->d_reclen; 2682 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2683 uiop->uio_offset += dp->d_reclen; 2684 uio_iov_base_add(uiop, dp->d_reclen); 2685 uio_iov_len_add(uiop, -(dp->d_reclen)); 2686 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2687 dp->d_type = DT_DIR; 2688 dp->d_fileno = dotdotfileid; 2689 dp->d_namlen = 2; 2690 dp->d_name[0] = '.'; 2691 dp->d_name[1] = '.'; 2692 dp->d_name[2] = '\0'; 2693 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 2694 /* 2695 * Just make these offset cookie 0. 2696 */ 2697 tl = (u_int32_t *)&dp->d_name[4]; 2698 *tl++ = 0; 2699 *tl = 0; 2700 blksiz += dp->d_reclen; 2701 uio_uio_resid_add(uiop, -(dp->d_reclen)); 2702 uiop->uio_offset += dp->d_reclen; 2703 uio_iov_base_add(uiop, dp->d_reclen); 2704 uio_iov_len_add(uiop, -(dp->d_reclen)); 2705 } 2706 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); 2707 } else { 2708 reqsize = 5 * NFSX_UNSIGNED; 2709 } 2710 2711 2712 /* 2713 * Loop around doing readdir rpc's of size readsize. 2714 * The stopping criteria is EOF or buffer full. 2715 */ 2716 while (more_dirs && bigenough) { 2717 *attrflagp = 0; 2718 NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); 2719 if (nd->nd_flag & ND_NFSV2) { 2720 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2721 *tl++ = cookie.lval[1]; 2722 *tl = txdr_unsigned(readsize); 2723 } else { 2724 NFSM_BUILD(tl, u_int32_t *, reqsize); 2725 *tl++ = cookie.lval[0]; 2726 *tl++ = cookie.lval[1]; 2727 if (cookie.qval == 0) { 2728 *tl++ = 0; 2729 *tl++ = 0; 2730 } else { 2731 NFSLOCKNODE(dnp); 2732 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2733 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2734 NFSUNLOCKNODE(dnp); 2735 } 2736 if (nd->nd_flag & ND_NFSV4) { 2737 *tl++ = txdr_unsigned(readsize); 2738 *tl = txdr_unsigned(readsize); 2739 (void) nfsrv_putattrbit(nd, &attrbits); 2740 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 2741 *tl = txdr_unsigned(NFSV4OP_GETATTR); 2742 (void) nfsrv_putattrbit(nd, &dattrbits); 2743 } else { 2744 *tl = txdr_unsigned(readsize); 2745 } 2746 } 2747 error = nfscl_request(nd, vp, p, cred, stuff); 2748 if (error) 2749 return (error); 2750 if (!(nd->nd_flag & ND_NFSV2)) { 2751 if (nd->nd_flag & ND_NFSV3) 2752 error = nfscl_postop_attr(nd, nap, attrflagp, 2753 stuff); 2754 if (!nd->nd_repstat && !error) { 2755 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 2756 NFSLOCKNODE(dnp); 2757 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2758 dnp->n_cookieverf.nfsuquad[1] = *tl; 2759 NFSUNLOCKNODE(dnp); 2760 } 2761 } 2762 if (nd->nd_repstat || error) { 2763 if (!error) 2764 error = nd->nd_repstat; 2765 goto nfsmout; 2766 } 2767 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2768 more_dirs = fxdr_unsigned(int, *tl); 2769 if (!more_dirs) 2770 tryformoredirs = 0; 2771 2772 /* loop thru the dir entries, doctoring them to 4bsd form */ 2773 while (more_dirs && bigenough) { 2774 if (nd->nd_flag & ND_NFSV4) { 2775 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2776 ncookie.lval[0] = *tl++; 2777 ncookie.lval[1] = *tl++; 2778 len = fxdr_unsigned(int, *tl); 2779 } else if (nd->nd_flag & ND_NFSV3) { 2780 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2781 nfsva.na_fileid = fxdr_hyper(tl); 2782 tl += 2; 2783 len = fxdr_unsigned(int, *tl); 2784 } else { 2785 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2786 nfsva.na_fileid = 2787 fxdr_unsigned(long, *tl++); 2788 len = fxdr_unsigned(int, *tl); 2789 } 2790 if (len <= 0 || len > NFS_MAXNAMLEN) { 2791 error = EBADRPC; 2792 goto nfsmout; 2793 } 2794 tlen = NFSM_RNDUP(len); 2795 if (tlen == len) 2796 tlen += 4; /* To ensure null termination */ 2797 left = DIRBLKSIZ - blksiz; 2798 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > left) { 2799 dp->d_reclen += left; 2800 uio_iov_base_add(uiop, left); 2801 uio_iov_len_add(uiop, -(left)); 2802 uio_uio_resid_add(uiop, -(left)); 2803 uiop->uio_offset += left; 2804 blksiz = 0; 2805 } 2806 if ((int)(tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 2807 bigenough = 0; 2808 if (bigenough) { 2809 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2810 dp->d_namlen = len; 2811 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 2812 dp->d_type = DT_UNKNOWN; 2813 blksiz += dp->d_reclen; 2814 if (blksiz == DIRBLKSIZ) 2815 blksiz = 0; 2816 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 2817 uiop->uio_offset += DIRHDSIZ; 2818 uio_iov_base_add(uiop, DIRHDSIZ); 2819 uio_iov_len_add(uiop, -(DIRHDSIZ)); 2820 error = nfsm_mbufuio(nd, uiop, len); 2821 if (error) 2822 goto nfsmout; 2823 cp = CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2824 tlen -= len; 2825 *cp = '\0'; /* null terminate */ 2826 cp += tlen; /* points to cookie storage */ 2827 tl2 = (u_int32_t *)cp; 2828 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 2829 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 2830 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 2831 uiop->uio_offset += (tlen + NFSX_HYPER); 2832 } else { 2833 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 2834 if (error) 2835 goto nfsmout; 2836 } 2837 if (nd->nd_flag & ND_NFSV4) { 2838 rderr = 0; 2839 nfsva.na_mntonfileno = 0xffffffff; 2840 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 2841 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 2842 NULL, NULL, &rderr, p, cred); 2843 if (error) 2844 goto nfsmout; 2845 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2846 } else if (nd->nd_flag & ND_NFSV3) { 2847 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 2848 ncookie.lval[0] = *tl++; 2849 ncookie.lval[1] = *tl++; 2850 } else { 2851 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 2852 ncookie.lval[0] = 0; 2853 ncookie.lval[1] = *tl++; 2854 } 2855 if (bigenough) { 2856 if (nd->nd_flag & ND_NFSV4) { 2857 if (rderr) { 2858 dp->d_fileno = 0; 2859 } else { 2860 if (gotmnton) { 2861 if (nfsva.na_mntonfileno != 0xffffffff) 2862 dp->d_fileno = nfsva.na_mntonfileno; 2863 else 2864 dp->d_fileno = nfsva.na_fileid; 2865 } else if (nfsva.na_filesid[0] == 2866 dnp->n_vattr.na_filesid[0] && 2867 nfsva.na_filesid[1] == 2868 dnp->n_vattr.na_filesid[1]) { 2869 dp->d_fileno = nfsva.na_fileid; 2870 } else { 2871 do { 2872 fakefileno--; 2873 } while (fakefileno == 2874 nfsva.na_fileid); 2875 dp->d_fileno = fakefileno; 2876 } 2877 dp->d_type = vtonfs_dtype(nfsva.na_type); 2878 } 2879 } else { 2880 dp->d_fileno = nfsva.na_fileid; 2881 } 2882 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 2883 ncookie.lval[0]; 2884 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 2885 ncookie.lval[1]; 2886 } 2887 more_dirs = fxdr_unsigned(int, *tl); 2888 } 2889 /* 2890 * If at end of rpc data, get the eof boolean 2891 */ 2892 if (!more_dirs) { 2893 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2894 eof = fxdr_unsigned(int, *tl); 2895 if (tryformoredirs) 2896 more_dirs = !eof; 2897 if (nd->nd_flag & ND_NFSV4) { 2898 error = nfscl_postop_attr(nd, nap, attrflagp, 2899 stuff); 2900 if (error) 2901 goto nfsmout; 2902 } 2903 } 2904 mbuf_freem(nd->nd_mrep); 2905 nd->nd_mrep = NULL; 2906 } 2907 /* 2908 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 2909 * by increasing d_reclen for the last record. 2910 */ 2911 if (blksiz > 0) { 2912 left = DIRBLKSIZ - blksiz; 2913 dp->d_reclen += left; 2914 uio_iov_base_add(uiop, left); 2915 uio_iov_len_add(uiop, -(left)); 2916 uio_uio_resid_add(uiop, -(left)); 2917 uiop->uio_offset += left; 2918 } 2919 2920 /* 2921 * If returning no data, assume end of file. 2922 * If not bigenough, return not end of file, since you aren't 2923 * returning all the data 2924 * Otherwise, return the eof flag from the server. 2925 */ 2926 if (eofp) { 2927 if (tresid == ((size_t)(uio_uio_resid(uiop)))) 2928 *eofp = 1; 2929 else if (!bigenough) 2930 *eofp = 0; 2931 else 2932 *eofp = eof; 2933 } 2934 2935 /* 2936 * Add extra empty records to any remaining DIRBLKSIZ chunks. 2937 */ 2938 while (uio_uio_resid(uiop) > 0 && ((size_t)(uio_uio_resid(uiop))) != tresid) { 2939 dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop)); 2940 dp->d_type = DT_UNKNOWN; 2941 dp->d_fileno = 0; 2942 dp->d_namlen = 0; 2943 dp->d_name[0] = '\0'; 2944 tl = (u_int32_t *)&dp->d_name[4]; 2945 *tl++ = cookie.lval[0]; 2946 *tl = cookie.lval[1]; 2947 dp->d_reclen = DIRBLKSIZ; 2948 uio_iov_base_add(uiop, DIRBLKSIZ); 2949 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 2950 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 2951 uiop->uio_offset += DIRBLKSIZ; 2952 } 2953 2954nfsmout: 2955 if (nd->nd_mrep != NULL) 2956 mbuf_freem(nd->nd_mrep); 2957 return (error); 2958} 2959 2960#ifndef APPLE 2961/* 2962 * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). 2963 * (Also used for NFS V4 when mount flag set.) 2964 * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) 2965 */ 2966APPLESTATIC int 2967nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, 2968 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 2969 int *eofp, void *stuff) 2970{ 2971 int len, left; 2972 struct dirent *dp = NULL; 2973 u_int32_t *tl; 2974 vnode_t newvp = NULLVP; 2975 struct nfsrv_descript nfsd, *nd = &nfsd; 2976 struct nameidata nami, *ndp = &nami; 2977 struct componentname *cnp = &ndp->ni_cnd; 2978 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 2979 struct nfsnode *dnp = VTONFS(vp), *np; 2980 struct nfsvattr nfsva; 2981 struct nfsfh *nfhp; 2982 nfsquad_t cookie, ncookie; 2983 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2984 int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; 2985 int isdotdot = 0, unlocknewvp = 0; 2986 long dotfileid, dotdotfileid = 0, fileno = 0; 2987 char *cp; 2988 nfsattrbit_t attrbits, dattrbits; 2989 size_t tresid; 2990 u_int32_t *tl2 = NULL, fakefileno = 0xffffffff, rderr; 2991 struct timespec dctime; 2992 2993 KASSERT(uiop->uio_iovcnt == 1 && 2994 (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, 2995 ("nfs readdirplusrpc bad uio")); 2996 timespecclear(&dctime); 2997 *attrflagp = 0; 2998 if (eofp != NULL) 2999 *eofp = 0; 3000 ndp->ni_dvp = vp; 3001 nd->nd_mrep = NULL; 3002 cookie.lval[0] = cookiep->nfsuquad[0]; 3003 cookie.lval[1] = cookiep->nfsuquad[1]; 3004 tresid = uio_uio_resid(uiop); 3005 3006 /* 3007 * For NFSv4, first create the "." and ".." entries. 3008 */ 3009 if (NFSHASNFSV4(nmp)) { 3010 NFSGETATTR_ATTRBIT(&dattrbits); 3011 NFSZERO_ATTRBIT(&attrbits); 3012 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); 3013 if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, 3014 NFSATTRBIT_MOUNTEDONFILEID)) { 3015 NFSSETBIT_ATTRBIT(&attrbits, 3016 NFSATTRBIT_MOUNTEDONFILEID); 3017 gotmnton = 1; 3018 } else { 3019 /* 3020 * Must fake it. Use the fileno, except when the 3021 * fsid is != to that of the directory. For that 3022 * case, generate a fake fileno that is not the same. 3023 */ 3024 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); 3025 gotmnton = 0; 3026 } 3027 3028 /* 3029 * Joy, oh joy. For V4 we get to hand craft '.' and '..'. 3030 */ 3031 if (uiop->uio_offset == 0) { 3032 NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); 3033 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3034 *tl++ = txdr_unsigned(NFSV4OP_GETFH); 3035 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3036 (void) nfsrv_putattrbit(nd, &attrbits); 3037 error = nfscl_request(nd, vp, p, cred, stuff); 3038 if (error) 3039 return (error); 3040 dotfileid = 0; /* Fake out the compiler. */ 3041 if ((nd->nd_flag & ND_NOMOREDATA) == 0) { 3042 error = nfsm_loadattr(nd, &nfsva); 3043 if (error != 0) 3044 goto nfsmout; 3045 dctime = nfsva.na_ctime; 3046 dotfileid = nfsva.na_fileid; 3047 } 3048 if (nd->nd_repstat == 0) { 3049 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 3050 len = fxdr_unsigned(int, *(tl + 4)); 3051 if (len > 0 && len <= NFSX_V4FHMAX) 3052 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3053 else 3054 error = EPERM; 3055 if (!error) { 3056 NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); 3057 nfsva.na_mntonfileno = 0xffffffff; 3058 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 3059 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3060 NULL, NULL, NULL, p, cred); 3061 if (error) { 3062 dotdotfileid = dotfileid; 3063 } else if (gotmnton) { 3064 if (nfsva.na_mntonfileno != 0xffffffff) 3065 dotdotfileid = nfsva.na_mntonfileno; 3066 else 3067 dotdotfileid = nfsva.na_fileid; 3068 } else if (nfsva.na_filesid[0] == 3069 dnp->n_vattr.na_filesid[0] && 3070 nfsva.na_filesid[1] == 3071 dnp->n_vattr.na_filesid[1]) { 3072 dotdotfileid = nfsva.na_fileid; 3073 } else { 3074 do { 3075 fakefileno--; 3076 } while (fakefileno == 3077 nfsva.na_fileid); 3078 dotdotfileid = fakefileno; 3079 } 3080 } 3081 } else if (nd->nd_repstat == NFSERR_NOENT) { 3082 /* 3083 * Lookupp returns NFSERR_NOENT when we are 3084 * at the root, so just use the current dir. 3085 */ 3086 nd->nd_repstat = 0; 3087 dotdotfileid = dotfileid; 3088 } else { 3089 error = nd->nd_repstat; 3090 } 3091 mbuf_freem(nd->nd_mrep); 3092 if (error) 3093 return (error); 3094 nd->nd_mrep = NULL; 3095 dp = (struct dirent *)uio_iov_base(uiop); 3096 dp->d_type = DT_DIR; 3097 dp->d_fileno = dotfileid; 3098 dp->d_namlen = 1; 3099 dp->d_name[0] = '.'; 3100 dp->d_name[1] = '\0'; 3101 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3102 /* 3103 * Just make these offset cookie 0. 3104 */ 3105 tl = (u_int32_t *)&dp->d_name[4]; 3106 *tl++ = 0; 3107 *tl = 0; 3108 blksiz += dp->d_reclen; 3109 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3110 uiop->uio_offset += dp->d_reclen; 3111 uio_iov_base_add(uiop, dp->d_reclen); 3112 uio_iov_len_add(uiop, -(dp->d_reclen)); 3113 dp = (struct dirent *)uio_iov_base(uiop); 3114 dp->d_type = DT_DIR; 3115 dp->d_fileno = dotdotfileid; 3116 dp->d_namlen = 2; 3117 dp->d_name[0] = '.'; 3118 dp->d_name[1] = '.'; 3119 dp->d_name[2] = '\0'; 3120 dp->d_reclen = DIRENT_SIZE(dp) + NFSX_HYPER; 3121 /* 3122 * Just make these offset cookie 0. 3123 */ 3124 tl = (u_int32_t *)&dp->d_name[4]; 3125 *tl++ = 0; 3126 *tl = 0; 3127 blksiz += dp->d_reclen; 3128 uio_uio_resid_add(uiop, -(dp->d_reclen)); 3129 uiop->uio_offset += dp->d_reclen; 3130 uio_iov_base_add(uiop, dp->d_reclen); 3131 uio_iov_len_add(uiop, -(dp->d_reclen)); 3132 } 3133 NFSREADDIRPLUS_ATTRBIT(&attrbits); 3134 if (gotmnton) 3135 NFSSETBIT_ATTRBIT(&attrbits, 3136 NFSATTRBIT_MOUNTEDONFILEID); 3137 } 3138 3139 /* 3140 * Loop around doing readdir rpc's of size nm_readdirsize. 3141 * The stopping criteria is EOF or buffer full. 3142 */ 3143 while (more_dirs && bigenough) { 3144 *attrflagp = 0; 3145 NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); 3146 NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 3147 *tl++ = cookie.lval[0]; 3148 *tl++ = cookie.lval[1]; 3149 if (cookie.qval == 0) { 3150 *tl++ = 0; 3151 *tl++ = 0; 3152 } else { 3153 NFSLOCKNODE(dnp); 3154 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 3155 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 3156 NFSUNLOCKNODE(dnp); 3157 } 3158 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 3159 *tl = txdr_unsigned(nmp->nm_readdirsize); 3160 if (nd->nd_flag & ND_NFSV4) { 3161 (void) nfsrv_putattrbit(nd, &attrbits); 3162 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3163 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3164 (void) nfsrv_putattrbit(nd, &dattrbits); 3165 } 3166 error = nfscl_request(nd, vp, p, cred, stuff); 3167 if (error) 3168 return (error); 3169 if (nd->nd_flag & ND_NFSV3) 3170 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3171 if (nd->nd_repstat || error) { 3172 if (!error) 3173 error = nd->nd_repstat; 3174 goto nfsmout; 3175 } 3176 if ((nd->nd_flag & ND_NFSV3) != 0 && *attrflagp != 0) 3177 dctime = nap->na_ctime; 3178 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3179 NFSLOCKNODE(dnp); 3180 dnp->n_cookieverf.nfsuquad[0] = *tl++; 3181 dnp->n_cookieverf.nfsuquad[1] = *tl++; 3182 NFSUNLOCKNODE(dnp); 3183 more_dirs = fxdr_unsigned(int, *tl); 3184 if (!more_dirs) 3185 tryformoredirs = 0; 3186 3187 /* loop thru the dir entries, doctoring them to 4bsd form */ 3188 while (more_dirs && bigenough) { 3189 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3190 if (nd->nd_flag & ND_NFSV4) { 3191 ncookie.lval[0] = *tl++; 3192 ncookie.lval[1] = *tl++; 3193 } else { 3194 fileno = fxdr_unsigned(long, *++tl); 3195 tl++; 3196 } 3197 len = fxdr_unsigned(int, *tl); 3198 if (len <= 0 || len > NFS_MAXNAMLEN) { 3199 error = EBADRPC; 3200 goto nfsmout; 3201 } 3202 tlen = NFSM_RNDUP(len); 3203 if (tlen == len) 3204 tlen += 4; /* To ensure null termination */ 3205 left = DIRBLKSIZ - blksiz; 3206 if ((tlen + DIRHDSIZ + NFSX_HYPER) > left) { 3207 dp->d_reclen += left; 3208 uio_iov_base_add(uiop, left); 3209 uio_iov_len_add(uiop, -(left)); 3210 uio_uio_resid_add(uiop, -(left)); 3211 uiop->uio_offset += left; 3212 blksiz = 0; 3213 } 3214 if ((tlen + DIRHDSIZ + NFSX_HYPER) > uio_uio_resid(uiop)) 3215 bigenough = 0; 3216 if (bigenough) { 3217 dp = (struct dirent *)uio_iov_base(uiop); 3218 dp->d_namlen = len; 3219 dp->d_reclen = tlen + DIRHDSIZ + NFSX_HYPER; 3220 dp->d_type = DT_UNKNOWN; 3221 blksiz += dp->d_reclen; 3222 if (blksiz == DIRBLKSIZ) 3223 blksiz = 0; 3224 uio_uio_resid_add(uiop, -(DIRHDSIZ)); 3225 uiop->uio_offset += DIRHDSIZ; 3226 uio_iov_base_add(uiop, DIRHDSIZ); 3227 uio_iov_len_add(uiop, -(DIRHDSIZ)); 3228 cnp->cn_nameptr = uio_iov_base(uiop); 3229 cnp->cn_namelen = len; 3230 NFSCNHASHZERO(cnp); 3231 error = nfsm_mbufuio(nd, uiop, len); 3232 if (error) 3233 goto nfsmout; 3234 cp = uio_iov_base(uiop); 3235 tlen -= len; 3236 *cp = '\0'; 3237 cp += tlen; /* points to cookie storage */ 3238 tl2 = (u_int32_t *)cp; 3239 if (len == 2 && cnp->cn_nameptr[0] == '.' && 3240 cnp->cn_nameptr[1] == '.') 3241 isdotdot = 1; 3242 else 3243 isdotdot = 0; 3244 uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); 3245 uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); 3246 uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); 3247 uiop->uio_offset += (tlen + NFSX_HYPER); 3248 } else { 3249 error = nfsm_advance(nd, NFSM_RNDUP(len), -1); 3250 if (error) 3251 goto nfsmout; 3252 } 3253 nfhp = NULL; 3254 if (nd->nd_flag & ND_NFSV3) { 3255 NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); 3256 ncookie.lval[0] = *tl++; 3257 ncookie.lval[1] = *tl++; 3258 attrflag = fxdr_unsigned(int, *tl); 3259 if (attrflag) { 3260 error = nfsm_loadattr(nd, &nfsva); 3261 if (error) 3262 goto nfsmout; 3263 } 3264 NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); 3265 if (*tl) { 3266 error = nfsm_getfh(nd, &nfhp); 3267 if (error) 3268 goto nfsmout; 3269 } 3270 if (!attrflag && nfhp != NULL) { 3271 FREE((caddr_t)nfhp, M_NFSFH); 3272 nfhp = NULL; 3273 } 3274 } else { 3275 rderr = 0; 3276 nfsva.na_mntonfileno = 0xffffffff; 3277 error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, 3278 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 3279 NULL, NULL, &rderr, p, cred); 3280 if (error) 3281 goto nfsmout; 3282 } 3283 3284 if (bigenough) { 3285 if (nd->nd_flag & ND_NFSV4) { 3286 if (rderr) { 3287 dp->d_fileno = 0; 3288 } else if (gotmnton) { 3289 if (nfsva.na_mntonfileno != 0xffffffff) 3290 dp->d_fileno = nfsva.na_mntonfileno; 3291 else 3292 dp->d_fileno = nfsva.na_fileid; 3293 } else if (nfsva.na_filesid[0] == 3294 dnp->n_vattr.na_filesid[0] && 3295 nfsva.na_filesid[1] == 3296 dnp->n_vattr.na_filesid[1]) { 3297 dp->d_fileno = nfsva.na_fileid; 3298 } else { 3299 do { 3300 fakefileno--; 3301 } while (fakefileno == 3302 nfsva.na_fileid); 3303 dp->d_fileno = fakefileno; 3304 } 3305 } else { 3306 dp->d_fileno = fileno; 3307 } 3308 *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = 3309 ncookie.lval[0]; 3310 *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = 3311 ncookie.lval[1]; 3312 3313 if (nfhp != NULL) { 3314 if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, 3315 dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { 3316 VREF(vp); 3317 newvp = vp; 3318 unlocknewvp = 0; 3319 FREE((caddr_t)nfhp, M_NFSFH); 3320 np = dnp; 3321 } else if (isdotdot != 0) { 3322 /* 3323 * Skip doing a nfscl_nget() call for "..". 3324 * There's a race between acquiring the nfs 3325 * node here and lookups that look for the 3326 * directory being read (in the parent). 3327 * It would try to get a lock on ".." here, 3328 * owning the lock on the directory being 3329 * read. Lookup will hold the lock on ".." 3330 * and try to acquire the lock on the 3331 * directory being read. 3332 * If the directory is unlocked/relocked, 3333 * then there is a LOR with the buflock 3334 * vp is relocked. 3335 */ 3336 free(nfhp, M_NFSFH); 3337 } else { 3338 error = nfscl_nget(vnode_mount(vp), vp, 3339 nfhp, cnp, p, &np, NULL, LK_EXCLUSIVE); 3340 if (!error) { 3341 newvp = NFSTOV(np); 3342 unlocknewvp = 1; 3343 } 3344 } 3345 nfhp = NULL; 3346 if (newvp != NULLVP) { 3347 error = nfscl_loadattrcache(&newvp, 3348 &nfsva, NULL, NULL, 0, 0); 3349 if (error) { 3350 if (unlocknewvp) 3351 vput(newvp); 3352 else 3353 vrele(newvp); 3354 goto nfsmout; 3355 } 3356 dp->d_type = 3357 vtonfs_dtype(np->n_vattr.na_type); 3358 ndp->ni_vp = newvp; 3359 NFSCNHASH(cnp, HASHINIT); 3360 if (cnp->cn_namelen <= NCHNAMLEN && 3361 (newvp->v_type != VDIR || 3362 dctime.tv_sec != 0)) { 3363 cache_enter_time(ndp->ni_dvp, 3364 ndp->ni_vp, cnp, 3365 &nfsva.na_ctime, 3366 newvp->v_type != VDIR ? NULL : 3367 &dctime); 3368 } 3369 if (unlocknewvp) 3370 vput(newvp); 3371 else 3372 vrele(newvp); 3373 newvp = NULLVP; 3374 } 3375 } 3376 } else if (nfhp != NULL) { 3377 FREE((caddr_t)nfhp, M_NFSFH); 3378 } 3379 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3380 more_dirs = fxdr_unsigned(int, *tl); 3381 } 3382 /* 3383 * If at end of rpc data, get the eof boolean 3384 */ 3385 if (!more_dirs) { 3386 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3387 eof = fxdr_unsigned(int, *tl); 3388 if (tryformoredirs) 3389 more_dirs = !eof; 3390 if (nd->nd_flag & ND_NFSV4) { 3391 error = nfscl_postop_attr(nd, nap, attrflagp, 3392 stuff); 3393 if (error) 3394 goto nfsmout; 3395 } 3396 } 3397 mbuf_freem(nd->nd_mrep); 3398 nd->nd_mrep = NULL; 3399 } 3400 /* 3401 * Fill last record, iff any, out to a multiple of DIRBLKSIZ 3402 * by increasing d_reclen for the last record. 3403 */ 3404 if (blksiz > 0) { 3405 left = DIRBLKSIZ - blksiz; 3406 dp->d_reclen += left; 3407 uio_iov_base_add(uiop, left); 3408 uio_iov_len_add(uiop, -(left)); 3409 uio_uio_resid_add(uiop, -(left)); 3410 uiop->uio_offset += left; 3411 } 3412 3413 /* 3414 * If returning no data, assume end of file. 3415 * If not bigenough, return not end of file, since you aren't 3416 * returning all the data 3417 * Otherwise, return the eof flag from the server. 3418 */ 3419 if (eofp != NULL) { 3420 if (tresid == uio_uio_resid(uiop)) 3421 *eofp = 1; 3422 else if (!bigenough) 3423 *eofp = 0; 3424 else 3425 *eofp = eof; 3426 } 3427 3428 /* 3429 * Add extra empty records to any remaining DIRBLKSIZ chunks. 3430 */ 3431 while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { 3432 dp = (struct dirent *)uio_iov_base(uiop); 3433 dp->d_type = DT_UNKNOWN; 3434 dp->d_fileno = 0; 3435 dp->d_namlen = 0; 3436 dp->d_name[0] = '\0'; 3437 tl = (u_int32_t *)&dp->d_name[4]; 3438 *tl++ = cookie.lval[0]; 3439 *tl = cookie.lval[1]; 3440 dp->d_reclen = DIRBLKSIZ; 3441 uio_iov_base_add(uiop, DIRBLKSIZ); 3442 uio_iov_len_add(uiop, -(DIRBLKSIZ)); 3443 uio_uio_resid_add(uiop, -(DIRBLKSIZ)); 3444 uiop->uio_offset += DIRBLKSIZ; 3445 } 3446 3447nfsmout: 3448 if (nd->nd_mrep != NULL) 3449 mbuf_freem(nd->nd_mrep); 3450 return (error); 3451} 3452#endif /* !APPLE */ 3453 3454/* 3455 * Nfs commit rpc 3456 */ 3457APPLESTATIC int 3458nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, 3459 NFSPROC_T *p, u_char *verfp, struct nfsvattr *nap, int *attrflagp, 3460 void *stuff) 3461{ 3462 u_int32_t *tl; 3463 struct nfsrv_descript nfsd, *nd = &nfsd; 3464 nfsattrbit_t attrbits; 3465 int error; 3466 3467 *attrflagp = 0; 3468 NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); 3469 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3470 txdr_hyper(offset, tl); 3471 tl += 2; 3472 *tl = txdr_unsigned(cnt); 3473 if (nd->nd_flag & ND_NFSV4) { 3474 /* 3475 * And do a Getattr op. 3476 */ 3477 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3478 *tl = txdr_unsigned(NFSV4OP_GETATTR); 3479 NFSGETATTR_ATTRBIT(&attrbits); 3480 (void) nfsrv_putattrbit(nd, &attrbits); 3481 } 3482 error = nfscl_request(nd, vp, p, cred, stuff); 3483 if (error) 3484 return (error); 3485 error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); 3486 if (!error && !nd->nd_repstat) { 3487 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3488 NFSBCOPY((caddr_t)tl, verfp, NFSX_VERF); 3489 if (nd->nd_flag & ND_NFSV4) 3490 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3491 } 3492nfsmout: 3493 if (!error && nd->nd_repstat) 3494 error = nd->nd_repstat; 3495 mbuf_freem(nd->nd_mrep); 3496 return (error); 3497} 3498 3499/* 3500 * NFS byte range lock rpc. 3501 * (Mostly just calls one of the three lower level RPC routines.) 3502 */ 3503APPLESTATIC int 3504nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, 3505 int reclaim, struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3506{ 3507 struct nfscllockowner *lp; 3508 struct nfsclclient *clp; 3509 struct nfsfh *nfhp; 3510 struct nfsrv_descript nfsd, *nd = &nfsd; 3511 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 3512 u_int64_t off, len; 3513 off_t start, end; 3514 u_int32_t clidrev = 0; 3515 int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; 3516 int callcnt, dorpc; 3517 3518 /* 3519 * Convert the flock structure into a start and end and do POSIX 3520 * bounds checking. 3521 */ 3522 switch (fl->l_whence) { 3523 case SEEK_SET: 3524 case SEEK_CUR: 3525 /* 3526 * Caller is responsible for adding any necessary offset 3527 * when SEEK_CUR is used. 3528 */ 3529 start = fl->l_start; 3530 off = fl->l_start; 3531 break; 3532 case SEEK_END: 3533 start = size + fl->l_start; 3534 off = size + fl->l_start; 3535 break; 3536 default: 3537 return (EINVAL); 3538 }; 3539 if (start < 0) 3540 return (EINVAL); 3541 if (fl->l_len != 0) { 3542 end = start + fl->l_len - 1; 3543 if (end < start) 3544 return (EINVAL); 3545 } 3546 3547 len = fl->l_len; 3548 if (len == 0) 3549 len = NFS64BITSSET; 3550 retrycnt = 0; 3551 do { 3552 nd->nd_repstat = 0; 3553 if (op == F_GETLK) { 3554 error = nfscl_getcl(vp, cred, p, &clp); 3555 if (error) 3556 return (error); 3557 error = nfscl_lockt(vp, clp, off, len, fl, p, id, flags); 3558 if (!error) { 3559 clidrev = clp->nfsc_clientidrev; 3560 error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, 3561 p, id, flags); 3562 } else if (error == -1) { 3563 error = 0; 3564 } 3565 nfscl_clientrelease(clp); 3566 } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { 3567 /* 3568 * We must loop around for all lockowner cases. 3569 */ 3570 callcnt = 0; 3571 error = nfscl_getcl(vp, cred, p, &clp); 3572 if (error) 3573 return (error); 3574 do { 3575 error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, 3576 clp, id, flags, &lp, &dorpc); 3577 /* 3578 * If it returns a NULL lp, we're done. 3579 */ 3580 if (lp == NULL) { 3581 if (callcnt == 0) 3582 nfscl_clientrelease(clp); 3583 else 3584 nfscl_releasealllocks(clp, vp, p, id, flags); 3585 return (error); 3586 } 3587 if (nmp->nm_clp != NULL) 3588 clidrev = nmp->nm_clp->nfsc_clientidrev; 3589 else 3590 clidrev = 0; 3591 /* 3592 * If the server doesn't support Posix lock semantics, 3593 * only allow locks on the entire file, since it won't 3594 * handle overlapping byte ranges. 3595 * There might still be a problem when a lock 3596 * upgrade/downgrade (read<->write) occurs, since the 3597 * server "might" expect an unlock first? 3598 */ 3599 if (dorpc && (lp->nfsl_open->nfso_posixlock || 3600 (off == 0 && len == NFS64BITSSET))) { 3601 /* 3602 * Since the lock records will go away, we must 3603 * wait for grace and delay here. 3604 */ 3605 do { 3606 error = nfsrpc_locku(nd, nmp, lp, off, len, 3607 NFSV4LOCKT_READ, cred, p, 0); 3608 if ((nd->nd_repstat == NFSERR_GRACE || 3609 nd->nd_repstat == NFSERR_DELAY) && 3610 error == 0) 3611 (void) nfs_catnap(PZERO, (int)nd->nd_repstat, 3612 "nfs_advlock"); 3613 } while ((nd->nd_repstat == NFSERR_GRACE || 3614 nd->nd_repstat == NFSERR_DELAY) && error == 0); 3615 } 3616 callcnt++; 3617 } while (error == 0 && nd->nd_repstat == 0); 3618 nfscl_releasealllocks(clp, vp, p, id, flags); 3619 } else if (op == F_SETLK) { 3620 error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, 3621 NULL, 0, id, flags, NULL, NULL, &lp, &newone, &donelocally); 3622 if (error || donelocally) { 3623 return (error); 3624 } 3625 if (nmp->nm_clp != NULL) 3626 clidrev = nmp->nm_clp->nfsc_clientidrev; 3627 else 3628 clidrev = 0; 3629 nfhp = VTONFS(vp)->n_fhp; 3630 if (!lp->nfsl_open->nfso_posixlock && 3631 (off != 0 || len != NFS64BITSSET)) { 3632 error = EINVAL; 3633 } else { 3634 error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, 3635 nfhp->nfh_len, lp, newone, reclaim, off, 3636 len, fl->l_type, cred, p, 0); 3637 } 3638 if (!error) 3639 error = nd->nd_repstat; 3640 nfscl_lockrelease(lp, error, newone); 3641 } else { 3642 error = EINVAL; 3643 } 3644 if (!error) 3645 error = nd->nd_repstat; 3646 if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || 3647 error == NFSERR_STALEDONTRECOVER || 3648 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY) { 3649 (void) nfs_catnap(PZERO, error, "nfs_advlock"); 3650 } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) 3651 && clidrev != 0) { 3652 expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); 3653 retrycnt++; 3654 } 3655 } while (error == NFSERR_GRACE || 3656 error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || 3657 error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || 3658 ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && 3659 expireret == 0 && clidrev != 0 && retrycnt < 4)); 3660 if (error && retrycnt >= 4) 3661 error = EIO; 3662 return (error); 3663} 3664 3665/* 3666 * The lower level routine for the LockT case. 3667 */ 3668APPLESTATIC int 3669nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, 3670 struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, 3671 struct ucred *cred, NFSPROC_T *p, void *id, int flags) 3672{ 3673 u_int32_t *tl; 3674 int error, type, size; 3675 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 3676 struct nfsnode *np; 3677 3678 NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); 3679 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3680 if (fl->l_type == F_RDLCK) 3681 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3682 else 3683 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3684 txdr_hyper(off, tl); 3685 tl += 2; 3686 txdr_hyper(len, tl); 3687 tl += 2; 3688 *tl++ = clp->nfsc_clientid.lval[0]; 3689 *tl = clp->nfsc_clientid.lval[1]; 3690 nfscl_filllockowner(id, own, flags); 3691 np = VTONFS(vp); 3692 NFSBCOPY(np->n_fhp->nfh_fh, &own[NFSV4CL_LOCKNAMELEN], 3693 np->n_fhp->nfh_len); 3694 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + np->n_fhp->nfh_len); 3695 error = nfscl_request(nd, vp, p, cred, NULL); 3696 if (error) 3697 return (error); 3698 if (nd->nd_repstat == 0) { 3699 fl->l_type = F_UNLCK; 3700 } else if (nd->nd_repstat == NFSERR_DENIED) { 3701 nd->nd_repstat = 0; 3702 fl->l_whence = SEEK_SET; 3703 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3704 fl->l_start = fxdr_hyper(tl); 3705 tl += 2; 3706 len = fxdr_hyper(tl); 3707 tl += 2; 3708 if (len == NFS64BITSSET) 3709 fl->l_len = 0; 3710 else 3711 fl->l_len = len; 3712 type = fxdr_unsigned(int, *tl++); 3713 if (type == NFSV4LOCKT_WRITE) 3714 fl->l_type = F_WRLCK; 3715 else 3716 fl->l_type = F_RDLCK; 3717 /* 3718 * XXX For now, I have no idea what to do with the 3719 * conflicting lock_owner, so I'll just set the pid == 0 3720 * and skip over the lock_owner. 3721 */ 3722 fl->l_pid = (pid_t)0; 3723 tl += 2; 3724 size = fxdr_unsigned(int, *tl); 3725 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3726 error = EBADRPC; 3727 if (!error) 3728 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3729 } else if (nd->nd_repstat == NFSERR_STALECLIENTID) 3730 nfscl_initiate_recovery(clp); 3731nfsmout: 3732 mbuf_freem(nd->nd_mrep); 3733 return (error); 3734} 3735 3736/* 3737 * Lower level function that performs the LockU RPC. 3738 */ 3739static int 3740nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, 3741 struct nfscllockowner *lp, u_int64_t off, u_int64_t len, 3742 u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) 3743{ 3744 u_int32_t *tl; 3745 int error; 3746 3747 nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, 3748 lp->nfsl_open->nfso_fhlen, NULL); 3749 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3750 *tl++ = txdr_unsigned(type); 3751 *tl = txdr_unsigned(lp->nfsl_seqid); 3752 if (nfstest_outofseq && 3753 (arc4random() % nfstest_outofseq) == 0) 3754 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3755 tl++; 3756 *tl++ = lp->nfsl_stateid.seqid; 3757 *tl++ = lp->nfsl_stateid.other[0]; 3758 *tl++ = lp->nfsl_stateid.other[1]; 3759 *tl++ = lp->nfsl_stateid.other[2]; 3760 txdr_hyper(off, tl); 3761 tl += 2; 3762 txdr_hyper(len, tl); 3763 if (syscred) 3764 nd->nd_flag |= ND_USEGSSNAME; 3765 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 3766 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3767 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3768 if (error) 3769 return (error); 3770 if (nd->nd_repstat == 0) { 3771 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3772 lp->nfsl_stateid.seqid = *tl++; 3773 lp->nfsl_stateid.other[0] = *tl++; 3774 lp->nfsl_stateid.other[1] = *tl++; 3775 lp->nfsl_stateid.other[2] = *tl; 3776 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3777 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3778nfsmout: 3779 mbuf_freem(nd->nd_mrep); 3780 return (error); 3781} 3782 3783/* 3784 * The actual Lock RPC. 3785 */ 3786APPLESTATIC int 3787nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, 3788 u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, 3789 int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, 3790 NFSPROC_T *p, int syscred) 3791{ 3792 u_int32_t *tl; 3793 int error, size; 3794 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 3795 3796 nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL); 3797 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 3798 if (type == F_RDLCK) 3799 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 3800 else 3801 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 3802 *tl++ = txdr_unsigned(reclaim); 3803 txdr_hyper(off, tl); 3804 tl += 2; 3805 txdr_hyper(len, tl); 3806 tl += 2; 3807 if (newone) { 3808 *tl = newnfs_true; 3809 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3810 2 * NFSX_UNSIGNED + NFSX_HYPER); 3811 *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); 3812 *tl++ = lp->nfsl_open->nfso_stateid.seqid; 3813 *tl++ = lp->nfsl_open->nfso_stateid.other[0]; 3814 *tl++ = lp->nfsl_open->nfso_stateid.other[1]; 3815 *tl++ = lp->nfsl_open->nfso_stateid.other[2]; 3816 *tl++ = txdr_unsigned(lp->nfsl_seqid); 3817 *tl++ = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[0]; 3818 *tl = lp->nfsl_open->nfso_own->nfsow_clp->nfsc_clientid.lval[1]; 3819 NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); 3820 NFSBCOPY(nfhp, &own[NFSV4CL_LOCKNAMELEN], fhlen); 3821 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); 3822 } else { 3823 *tl = newnfs_false; 3824 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3825 *tl++ = lp->nfsl_stateid.seqid; 3826 *tl++ = lp->nfsl_stateid.other[0]; 3827 *tl++ = lp->nfsl_stateid.other[1]; 3828 *tl++ = lp->nfsl_stateid.other[2]; 3829 *tl = txdr_unsigned(lp->nfsl_seqid); 3830 if (nfstest_outofseq && 3831 (arc4random() % nfstest_outofseq) == 0) 3832 *tl = txdr_unsigned(lp->nfsl_seqid + 1); 3833 } 3834 if (syscred) 3835 nd->nd_flag |= ND_USEGSSNAME; 3836 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 3837 NFS_PROG, NFS_VER4, NULL, 1, NULL); 3838 if (error) 3839 return (error); 3840 if (newone) 3841 NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); 3842 NFSCL_INCRSEQID(lp->nfsl_seqid, nd); 3843 if (nd->nd_repstat == 0) { 3844 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3845 lp->nfsl_stateid.seqid = *tl++; 3846 lp->nfsl_stateid.other[0] = *tl++; 3847 lp->nfsl_stateid.other[1] = *tl++; 3848 lp->nfsl_stateid.other[2] = *tl; 3849 } else if (nd->nd_repstat == NFSERR_DENIED) { 3850 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 3851 size = fxdr_unsigned(int, *(tl + 7)); 3852 if (size < 0 || size > NFSV4_OPAQUELIMIT) 3853 error = EBADRPC; 3854 if (!error) 3855 error = nfsm_advance(nd, NFSM_RNDUP(size), -1); 3856 } else if (nd->nd_repstat == NFSERR_STALESTATEID) 3857 nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); 3858nfsmout: 3859 mbuf_freem(nd->nd_mrep); 3860 return (error); 3861} 3862 3863/* 3864 * nfs statfs rpc 3865 * (always called with the vp for the mount point) 3866 */ 3867APPLESTATIC int 3868nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, 3869 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3870 void *stuff) 3871{ 3872 u_int32_t *tl = NULL; 3873 struct nfsrv_descript nfsd, *nd = &nfsd; 3874 struct nfsmount *nmp; 3875 nfsattrbit_t attrbits; 3876 int error; 3877 3878 *attrflagp = 0; 3879 nmp = VFSTONFS(vnode_mount(vp)); 3880 if (NFSHASNFSV4(nmp)) { 3881 /* 3882 * For V4, you actually do a getattr. 3883 */ 3884 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3885 NFSSTATFS_GETATTRBIT(&attrbits); 3886 (void) nfsrv_putattrbit(nd, &attrbits); 3887 nd->nd_flag |= ND_USEGSSNAME; 3888 error = nfscl_request(nd, vp, p, cred, stuff); 3889 if (error) 3890 return (error); 3891 if (nd->nd_repstat == 0) { 3892 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3893 NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, 3894 cred); 3895 if (!error) { 3896 nmp->nm_fsid[0] = nap->na_filesid[0]; 3897 nmp->nm_fsid[1] = nap->na_filesid[1]; 3898 NFSSETHASSETFSID(nmp); 3899 *attrflagp = 1; 3900 } 3901 } else { 3902 error = nd->nd_repstat; 3903 } 3904 if (error) 3905 goto nfsmout; 3906 } else { 3907 NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); 3908 error = nfscl_request(nd, vp, p, cred, stuff); 3909 if (error) 3910 return (error); 3911 if (nd->nd_flag & ND_NFSV3) { 3912 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 3913 if (error) 3914 goto nfsmout; 3915 } 3916 if (nd->nd_repstat) { 3917 error = nd->nd_repstat; 3918 goto nfsmout; 3919 } 3920 NFSM_DISSECT(tl, u_int32_t *, 3921 NFSX_STATFS(nd->nd_flag & ND_NFSV3)); 3922 } 3923 if (NFSHASNFSV3(nmp)) { 3924 sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; 3925 sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; 3926 sbp->sf_abytes = fxdr_hyper(tl); tl += 2; 3927 sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; 3928 sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; 3929 sbp->sf_afiles = fxdr_hyper(tl); tl += 2; 3930 sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); 3931 } else if (NFSHASNFSV4(nmp) == 0) { 3932 sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); 3933 sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); 3934 sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); 3935 sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); 3936 sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); 3937 } 3938nfsmout: 3939 mbuf_freem(nd->nd_mrep); 3940 return (error); 3941} 3942 3943/* 3944 * nfs pathconf rpc 3945 */ 3946APPLESTATIC int 3947nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, 3948 struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, 3949 void *stuff) 3950{ 3951 struct nfsrv_descript nfsd, *nd = &nfsd; 3952 struct nfsmount *nmp; 3953 u_int32_t *tl; 3954 nfsattrbit_t attrbits; 3955 int error; 3956 3957 *attrflagp = 0; 3958 nmp = VFSTONFS(vnode_mount(vp)); 3959 if (NFSHASNFSV4(nmp)) { 3960 /* 3961 * For V4, you actually do a getattr. 3962 */ 3963 NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); 3964 NFSPATHCONF_GETATTRBIT(&attrbits); 3965 (void) nfsrv_putattrbit(nd, &attrbits); 3966 nd->nd_flag |= ND_USEGSSNAME; 3967 error = nfscl_request(nd, vp, p, cred, stuff); 3968 if (error) 3969 return (error); 3970 if (nd->nd_repstat == 0) { 3971 error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, 3972 pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, 3973 cred); 3974 if (!error) 3975 *attrflagp = 1; 3976 } else { 3977 error = nd->nd_repstat; 3978 } 3979 } else { 3980 NFSCL_REQSTART(nd, NFSPROC_PATHCONF, 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_V3PATHCONF); 3989 pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); 3990 pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); 3991 pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); 3992 pc->pc_chownrestricted = 3993 fxdr_unsigned(u_int32_t, *tl++); 3994 pc->pc_caseinsensitive = 3995 fxdr_unsigned(u_int32_t, *tl++); 3996 pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); 3997 } 3998 } 3999nfsmout: 4000 mbuf_freem(nd->nd_mrep); 4001 return (error); 4002} 4003 4004/* 4005 * nfs version 3 fsinfo rpc call 4006 */ 4007APPLESTATIC int 4008nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, 4009 NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) 4010{ 4011 u_int32_t *tl; 4012 struct nfsrv_descript nfsd, *nd = &nfsd; 4013 int error; 4014 4015 *attrflagp = 0; 4016 NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); 4017 error = nfscl_request(nd, vp, p, cred, stuff); 4018 if (error) 4019 return (error); 4020 error = nfscl_postop_attr(nd, nap, attrflagp, stuff); 4021 if (nd->nd_repstat && !error) 4022 error = nd->nd_repstat; 4023 if (!error) { 4024 NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); 4025 fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); 4026 fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); 4027 fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); 4028 fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); 4029 fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); 4030 fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); 4031 fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); 4032 fsp->fs_maxfilesize = fxdr_hyper(tl); 4033 tl += 2; 4034 fxdr_nfsv3time(tl, &fsp->fs_timedelta); 4035 tl += 2; 4036 fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); 4037 } 4038nfsmout: 4039 mbuf_freem(nd->nd_mrep); 4040 return (error); 4041} 4042 4043/* 4044 * This function performs the Renew RPC. 4045 */ 4046APPLESTATIC int 4047nfsrpc_renew(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p) 4048{ 4049 u_int32_t *tl; 4050 struct nfsrv_descript nfsd; 4051 struct nfsrv_descript *nd = &nfsd; 4052 struct nfsmount *nmp; 4053 int error; 4054 4055 nmp = clp->nfsc_nmp; 4056 if (nmp == NULL) 4057 return (0); 4058 nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL); 4059 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4060 *tl++ = clp->nfsc_clientid.lval[0]; 4061 *tl = clp->nfsc_clientid.lval[1]; 4062 nd->nd_flag |= ND_USEGSSNAME; 4063 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4064 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4065 if (error) 4066 return (error); 4067 error = nd->nd_repstat; 4068 mbuf_freem(nd->nd_mrep); 4069 return (error); 4070} 4071 4072/* 4073 * This function performs the Releaselockowner RPC. 4074 */ 4075APPLESTATIC int 4076nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, 4077 uint8_t *fh, int fhlen, struct ucred *cred, NFSPROC_T *p) 4078{ 4079 struct nfsrv_descript nfsd, *nd = &nfsd; 4080 u_int32_t *tl; 4081 int error; 4082 uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; 4083 4084 nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL); 4085 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4086 *tl++ = nmp->nm_clp->nfsc_clientid.lval[0]; 4087 *tl = nmp->nm_clp->nfsc_clientid.lval[1]; 4088 NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); 4089 NFSBCOPY(fh, &own[NFSV4CL_LOCKNAMELEN], fhlen); 4090 (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); 4091 nd->nd_flag |= ND_USEGSSNAME; 4092 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4093 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4094 if (error) 4095 return (error); 4096 error = nd->nd_repstat; 4097 mbuf_freem(nd->nd_mrep); 4098 return (error); 4099} 4100 4101/* 4102 * This function performs the Compound to get the mount pt FH. 4103 */ 4104APPLESTATIC int 4105nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, 4106 NFSPROC_T *p) 4107{ 4108 u_int32_t *tl; 4109 struct nfsrv_descript nfsd; 4110 struct nfsrv_descript *nd = &nfsd; 4111 u_char *cp, *cp2; 4112 int error, cnt, len, setnil; 4113 u_int32_t *opcntp; 4114 4115 nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp); 4116 cp = dirpath; 4117 cnt = 0; 4118 do { 4119 setnil = 0; 4120 while (*cp == '/') 4121 cp++; 4122 cp2 = cp; 4123 while (*cp2 != '\0' && *cp2 != '/') 4124 cp2++; 4125 if (*cp2 == '/') { 4126 setnil = 1; 4127 *cp2 = '\0'; 4128 } 4129 if (cp2 != cp) { 4130 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4131 *tl = txdr_unsigned(NFSV4OP_LOOKUP); 4132 nfsm_strtom(nd, cp, strlen(cp)); 4133 cnt++; 4134 } 4135 if (setnil) 4136 *cp2++ = '/'; 4137 cp = cp2; 4138 } while (*cp != '\0'); 4139 *opcntp = txdr_unsigned(2 + cnt); 4140 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 4141 *tl = txdr_unsigned(NFSV4OP_GETFH); 4142 nd->nd_flag |= ND_USEGSSNAME; 4143 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4144 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4145 if (error) 4146 return (error); 4147 if (nd->nd_repstat == 0) { 4148 NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); 4149 tl += (2 + 2 * cnt); 4150 if ((len = fxdr_unsigned(int, *tl)) <= 0 || 4151 len > NFSX_FHMAX) { 4152 nd->nd_repstat = NFSERR_BADXDR; 4153 } else { 4154 nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); 4155 if (nd->nd_repstat == 0) 4156 nmp->nm_fhsize = len; 4157 } 4158 } 4159 error = nd->nd_repstat; 4160nfsmout: 4161 mbuf_freem(nd->nd_mrep); 4162 return (error); 4163} 4164 4165/* 4166 * This function performs the Delegreturn RPC. 4167 */ 4168APPLESTATIC int 4169nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, 4170 struct nfsmount *nmp, NFSPROC_T *p, int syscred) 4171{ 4172 u_int32_t *tl; 4173 struct nfsrv_descript nfsd; 4174 struct nfsrv_descript *nd = &nfsd; 4175 int error; 4176 4177 nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, 4178 dp->nfsdl_fhlen, NULL); 4179 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 4180 *tl++ = dp->nfsdl_stateid.seqid; 4181 *tl++ = dp->nfsdl_stateid.other[0]; 4182 *tl++ = dp->nfsdl_stateid.other[1]; 4183 *tl = dp->nfsdl_stateid.other[2]; 4184 if (syscred) 4185 nd->nd_flag |= ND_USEGSSNAME; 4186 error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, 4187 NFS_PROG, NFS_VER4, NULL, 1, NULL); 4188 if (error) 4189 return (error); 4190 error = nd->nd_repstat; 4191 mbuf_freem(nd->nd_mrep); 4192 return (error); 4193} 4194 4195/* 4196 * nfs getacl call. 4197 */ 4198APPLESTATIC int 4199nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4200 struct acl *aclp, void *stuff) 4201{ 4202 struct nfsrv_descript nfsd, *nd = &nfsd; 4203 int error; 4204 nfsattrbit_t attrbits; 4205 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4206 4207 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4208 return (EOPNOTSUPP); 4209 NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); 4210 NFSZERO_ATTRBIT(&attrbits); 4211 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4212 (void) nfsrv_putattrbit(nd, &attrbits); 4213 error = nfscl_request(nd, vp, p, cred, stuff); 4214 if (error) 4215 return (error); 4216 if (!nd->nd_repstat) 4217 error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, 4218 NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); 4219 else 4220 error = nd->nd_repstat; 4221 mbuf_freem(nd->nd_mrep); 4222 return (error); 4223} 4224 4225/* 4226 * nfs setacl call. 4227 */ 4228APPLESTATIC int 4229nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4230 struct acl *aclp, void *stuff) 4231{ 4232 int error; 4233 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4234 4235 if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) 4236 return (EOPNOTSUPP); 4237 error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); 4238 return (error); 4239} 4240 4241/* 4242 * nfs setacl call. 4243 */ 4244static int 4245nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, 4246 struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) 4247{ 4248 struct nfsrv_descript nfsd, *nd = &nfsd; 4249 int error; 4250 nfsattrbit_t attrbits; 4251 struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); 4252 4253 if (!NFSHASNFSV4(nmp)) 4254 return (EOPNOTSUPP); 4255 NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); 4256 nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); 4257 NFSZERO_ATTRBIT(&attrbits); 4258 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); 4259 (void) nfsv4_fillattr(nd, vnode_mount(vp), vp, aclp, NULL, NULL, 0, 4260 &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0); 4261 error = nfscl_request(nd, vp, p, cred, stuff); 4262 if (error) 4263 return (error); 4264 /* Don't care about the pre/postop attributes */ 4265 mbuf_freem(nd->nd_mrep); 4266 return (nd->nd_repstat); 4267} 4268