nfs_serv.c revision 1.82
1 /* $NetBSD: nfs_serv.c,v 1.82 2003/10/15 11:29:01 hannken Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)nfs_serv.c 8.8 (Berkeley) 7/31/95 35 */ 36 37 /* 38 * nfs version 2 and 3 server calls to vnode ops 39 * - these routines generally have 3 phases 40 * 1 - break down and validate rpc request in mbuf list 41 * 2 - do the vnode ops for the request 42 * (surprisingly ?? many are very similar to syscalls in vfs_syscalls.c) 43 * 3 - build the rpc reply in an mbuf list 44 * nb: 45 * - do not mix the phases, since the nfsm_?? macros can return failures 46 * on a bad rpc or similar and do not do any vrele() or vput()'s 47 * 48 * - the nfsm_reply() macro generates an nfs rpc reply with the nfs 49 * error number iff error != 0 whereas 50 * returning an error from the server function implies a fatal error 51 * such as a badly constructed rpc request that should be dropped without 52 * a reply. 53 * For Version 3, nfsm_reply() does not return for the error case, since 54 * most version 3 rpcs return more than the status for error cases. 55 */ 56 57 #include <sys/cdefs.h> 58 __KERNEL_RCSID(0, "$NetBSD: nfs_serv.c,v 1.82 2003/10/15 11:29:01 hannken Exp $"); 59 60 #include <sys/param.h> 61 #include <sys/systm.h> 62 #include <sys/proc.h> 63 #include <sys/file.h> 64 #include <sys/namei.h> 65 #include <sys/vnode.h> 66 #include <sys/mount.h> 67 #include <sys/socket.h> 68 #include <sys/socketvar.h> 69 #include <sys/mbuf.h> 70 #include <sys/dirent.h> 71 #include <sys/stat.h> 72 #include <sys/kernel.h> 73 #include <ufs/ufs/dir.h> 74 75 #include <uvm/uvm.h> 76 77 #include <nfs/nfsproto.h> 78 #include <nfs/rpcv2.h> 79 #include <nfs/nfs.h> 80 #include <nfs/xdr_subs.h> 81 #include <nfs/nfsm_subs.h> 82 #include <nfs/nqnfs.h> 83 #include <nfs/nfs_var.h> 84 85 /* Global vars */ 86 extern u_int32_t nfs_xdrneg1; 87 extern u_int32_t nfs_false, nfs_true; 88 extern enum vtype nv3tov_type[8]; 89 extern struct nfsstats nfsstats; 90 extern const nfstype nfsv2_type[9]; 91 extern const nfstype nfsv3_type[9]; 92 int nfsrvw_procrastinate = NFS_GATHERDELAY * 1000; 93 int nfsd_use_loan = 1; /* use page-loan for READ OP */ 94 95 /* 96 * nfs v3 access service 97 */ 98 int 99 nfsrv3_access(nfsd, slp, procp, mrq) 100 struct nfsrv_descript *nfsd; 101 struct nfssvc_sock *slp; 102 struct proc *procp; 103 struct mbuf **mrq; 104 { 105 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 106 struct mbuf *nam = nfsd->nd_nam; 107 caddr_t dpos = nfsd->nd_dpos; 108 struct ucred *cred = &nfsd->nd_cr; 109 struct vnode *vp; 110 nfsfh_t nfh; 111 fhandle_t *fhp; 112 u_int32_t *tl; 113 int32_t t1; 114 caddr_t bpos; 115 int error = 0, rdonly, cache = 0, getret; 116 char *cp2; 117 struct mbuf *mb, *mreq; 118 struct vattr va; 119 u_long inmode, testmode, outmode; 120 u_quad_t frev; 121 122 fhp = &nfh.fh_generic; 123 nfsm_srvmtofh(fhp); 124 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 125 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, &rdonly, 126 (nfsd->nd_flag & ND_KERBAUTH), FALSE); 127 if (error) { 128 nfsm_reply(NFSX_UNSIGNED); 129 nfsm_srvpostop_attr(1, (struct vattr *)0); 130 return (0); 131 } 132 inmode = fxdr_unsigned(u_int32_t, *tl); 133 outmode = 0; 134 if ((inmode & NFSV3ACCESS_READ) && 135 nfsrv_access(vp, VREAD, cred, rdonly, procp, 0) == 0) 136 outmode |= NFSV3ACCESS_READ; 137 if (vp->v_type != VDIR) { 138 testmode = inmode & (NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND); 139 if (testmode && 140 nfsrv_access(vp, VWRITE, cred, rdonly, procp, 0) == 0) 141 outmode |= testmode; 142 if ((inmode & NFSV3ACCESS_EXECUTE) && 143 nfsrv_access(vp, VEXEC, cred, rdonly, procp, 0) == 0) 144 outmode |= NFSV3ACCESS_EXECUTE; 145 } else { 146 testmode = inmode & (NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND | 147 NFSV3ACCESS_DELETE); 148 if (testmode && 149 nfsrv_access(vp, VWRITE, cred, rdonly, procp, 0) == 0) 150 outmode |= testmode; 151 if ((inmode & NFSV3ACCESS_LOOKUP) && 152 nfsrv_access(vp, VEXEC, cred, rdonly, procp, 0) == 0) 153 outmode |= NFSV3ACCESS_LOOKUP; 154 } 155 getret = VOP_GETATTR(vp, &va, cred, procp); 156 vput(vp); 157 nfsm_reply(NFSX_POSTOPATTR(1) + NFSX_UNSIGNED); 158 nfsm_srvpostop_attr(getret, &va); 159 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 160 *tl = txdr_unsigned(outmode); 161 nfsm_srvdone; 162 } 163 164 /* 165 * nfs getattr service 166 */ 167 int 168 nfsrv_getattr(nfsd, slp, procp, mrq) 169 struct nfsrv_descript *nfsd; 170 struct nfssvc_sock *slp; 171 struct proc *procp; 172 struct mbuf **mrq; 173 { 174 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 175 struct mbuf *nam = nfsd->nd_nam; 176 caddr_t dpos = nfsd->nd_dpos; 177 struct ucred *cred = &nfsd->nd_cr; 178 struct nfs_fattr *fp; 179 struct vattr va; 180 struct vnode *vp; 181 nfsfh_t nfh; 182 fhandle_t *fhp; 183 u_int32_t *tl; 184 int32_t t1; 185 caddr_t bpos; 186 int error = 0, rdonly, cache; 187 char *cp2; 188 struct mbuf *mb, *mreq; 189 u_quad_t frev; 190 191 fhp = &nfh.fh_generic; 192 nfsm_srvmtofh(fhp); 193 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, &rdonly, 194 (nfsd->nd_flag & ND_KERBAUTH), FALSE); 195 if (error) { 196 nfsm_reply(0); 197 return (0); 198 } 199 nqsrv_getl(vp, ND_READ); 200 error = VOP_GETATTR(vp, &va, cred, procp); 201 vput(vp); 202 nfsm_reply(NFSX_FATTR(nfsd->nd_flag & ND_NFSV3)); 203 if (error) 204 return (0); 205 nfsm_build(fp, struct nfs_fattr *, NFSX_FATTR(nfsd->nd_flag & ND_NFSV3)); 206 nfsm_srvfillattr(&va, fp); 207 nfsm_srvdone; 208 } 209 210 /* 211 * nfs setattr service 212 */ 213 int 214 nfsrv_setattr(nfsd, slp, procp, mrq) 215 struct nfsrv_descript *nfsd; 216 struct nfssvc_sock *slp; 217 struct proc *procp; 218 struct mbuf **mrq; 219 { 220 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 221 struct mbuf *nam = nfsd->nd_nam; 222 caddr_t dpos = nfsd->nd_dpos; 223 struct ucred *cred = &nfsd->nd_cr; 224 struct vattr va, preat; 225 struct nfsv2_sattr *sp; 226 struct nfs_fattr *fp; 227 struct vnode *vp; 228 nfsfh_t nfh; 229 fhandle_t *fhp; 230 u_int32_t *tl; 231 int32_t t1; 232 caddr_t bpos; 233 int error = 0, rdonly, cache, preat_ret = 1, postat_ret = 1; 234 int v3 = (nfsd->nd_flag & ND_NFSV3), gcheck = 0; 235 char *cp2; 236 struct mbuf *mb, *mreq; 237 u_quad_t frev; 238 struct timespec guard; 239 struct mount *mp = NULL; 240 241 fhp = &nfh.fh_generic; 242 nfsm_srvmtofh(fhp); 243 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 244 return (ESTALE); 245 vn_start_write(NULL, &mp, V_WAIT); 246 VATTR_NULL(&va); 247 if (v3) { 248 nfsm_srvsattr(&va); 249 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 250 gcheck = fxdr_unsigned(int, *tl); 251 if (gcheck) { 252 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 253 fxdr_nfsv3time(tl, &guard); 254 } 255 } else { 256 nfsm_dissect(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 257 /* 258 * Nah nah nah nah na nah 259 * There is a bug in the Sun client that puts 0xffff in the mode 260 * field of sattr when it should put in 0xffffffff. The u_short 261 * doesn't sign extend. 262 * --> check the low order 2 bytes for 0xffff 263 */ 264 if ((fxdr_unsigned(int, sp->sa_mode) & 0xffff) != 0xffff) 265 va.va_mode = nfstov_mode(sp->sa_mode); 266 if (sp->sa_uid != nfs_xdrneg1) 267 va.va_uid = fxdr_unsigned(uid_t, sp->sa_uid); 268 if (sp->sa_gid != nfs_xdrneg1) 269 va.va_gid = fxdr_unsigned(gid_t, sp->sa_gid); 270 if (sp->sa_size != nfs_xdrneg1) 271 va.va_size = fxdr_unsigned(u_quad_t, sp->sa_size); 272 if (sp->sa_atime.nfsv2_sec != nfs_xdrneg1) { 273 #ifdef notyet 274 fxdr_nfsv2time(&sp->sa_atime, &va.va_atime); 275 #else 276 va.va_atime.tv_sec = 277 fxdr_unsigned(u_int32_t,sp->sa_atime.nfsv2_sec); 278 va.va_atime.tv_nsec = 0; 279 #endif 280 } 281 if (sp->sa_mtime.nfsv2_sec != nfs_xdrneg1) 282 fxdr_nfsv2time(&sp->sa_mtime, &va.va_mtime); 283 284 } 285 286 /* 287 * Now that we have all the fields, lets do it. 288 */ 289 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, &rdonly, 290 (nfsd->nd_flag & ND_KERBAUTH), FALSE); 291 if (error) { 292 nfsm_reply(2 * NFSX_UNSIGNED); 293 nfsm_srvwcc_data(preat_ret, &preat, postat_ret, &va); 294 vn_finished_write(mp, 0); 295 return (0); 296 } 297 nqsrv_getl(vp, ND_WRITE); 298 if (v3) { 299 error = preat_ret = VOP_GETATTR(vp, &preat, cred, procp); 300 if (!error && gcheck && 301 (preat.va_ctime.tv_sec != guard.tv_sec || 302 preat.va_ctime.tv_nsec != guard.tv_nsec)) 303 error = NFSERR_NOT_SYNC; 304 if (error) { 305 vput(vp); 306 nfsm_reply(NFSX_WCCDATA(v3)); 307 nfsm_srvwcc_data(preat_ret, &preat, postat_ret, &va); 308 vn_finished_write(mp, 0); 309 return (0); 310 } 311 } 312 313 /* 314 * If the size is being changed write acces is required, otherwise 315 * just check for a read only file system. 316 */ 317 if (va.va_size == ((u_quad_t)((quad_t) -1))) { 318 if (rdonly || (vp->v_mount->mnt_flag & MNT_RDONLY)) { 319 error = EROFS; 320 goto out; 321 } 322 } else { 323 if (vp->v_type == VDIR) { 324 error = EISDIR; 325 goto out; 326 } else if ((error = nfsrv_access(vp, VWRITE, cred, rdonly, 327 procp, 0)) != 0) 328 goto out; 329 } 330 error = VOP_SETATTR(vp, &va, cred, procp); 331 postat_ret = VOP_GETATTR(vp, &va, cred, procp); 332 if (!error) 333 error = postat_ret; 334 out: 335 vput(vp); 336 vn_finished_write(mp, 0); 337 nfsm_reply(NFSX_WCCORFATTR(v3)); 338 if (v3) { 339 nfsm_srvwcc_data(preat_ret, &preat, postat_ret, &va); 340 return (0); 341 } else { 342 nfsm_build(fp, struct nfs_fattr *, NFSX_V2FATTR); 343 nfsm_srvfillattr(&va, fp); 344 } 345 nfsm_srvdone; 346 } 347 348 /* 349 * nfs lookup rpc 350 */ 351 int 352 nfsrv_lookup(nfsd, slp, procp, mrq) 353 struct nfsrv_descript *nfsd; 354 struct nfssvc_sock *slp; 355 struct proc *procp; 356 struct mbuf **mrq; 357 { 358 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 359 struct mbuf *nam = nfsd->nd_nam; 360 caddr_t dpos = nfsd->nd_dpos; 361 struct ucred *cred = &nfsd->nd_cr; 362 struct nfs_fattr *fp; 363 struct nameidata nd, ind, *ndp = &nd; 364 struct vnode *vp, *dirp; 365 nfsfh_t nfh; 366 fhandle_t *fhp; 367 caddr_t cp; 368 u_int32_t *tl; 369 int32_t t1; 370 caddr_t bpos; 371 int error = 0, cache, dirattr_ret = 1; 372 uint32_t len; 373 int v3 = (nfsd->nd_flag & ND_NFSV3), pubflag; 374 char *cp2; 375 struct mbuf *mb, *mreq; 376 struct vattr va, dirattr; 377 u_quad_t frev; 378 379 fhp = &nfh.fh_generic; 380 nfsm_srvmtofh(fhp); 381 nfsm_srvnamesiz(len); 382 383 pubflag = nfs_ispublicfh(fhp); 384 385 nd.ni_cnd.cn_cred = cred; 386 nd.ni_cnd.cn_nameiop = LOOKUP; 387 nd.ni_cnd.cn_flags = LOCKLEAF | SAVESTART; 388 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 389 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), pubflag); 390 391 if (!error && pubflag) { 392 if (nd.ni_vp->v_type == VDIR && nfs_pub.np_index != NULL) { 393 /* 394 * Setup call to lookup() to see if we can find 395 * the index file. Arguably, this doesn't belong 396 * in a kernel.. Ugh. 397 */ 398 ind = nd; 399 VOP_UNLOCK(nd.ni_vp, 0); 400 ind.ni_pathlen = strlen(nfs_pub.np_index); 401 ind.ni_cnd.cn_nameptr = ind.ni_cnd.cn_pnbuf = 402 nfs_pub.np_index; 403 ind.ni_startdir = nd.ni_vp; 404 VREF(ind.ni_startdir); 405 error = lookup(&ind); 406 if (!error) { 407 /* 408 * Found an index file. Get rid of 409 * the old references. 410 */ 411 if (dirp) 412 vrele(dirp); 413 dirp = nd.ni_vp; 414 vrele(nd.ni_startdir); 415 ndp = &ind; 416 } else 417 error = 0; 418 } 419 /* 420 * If the public filehandle was used, check that this lookup 421 * didn't result in a filehandle outside the publicly exported 422 * filesystem. 423 */ 424 425 if (!error && ndp->ni_vp->v_mount != nfs_pub.np_mount) { 426 vput(nd.ni_vp); 427 error = EPERM; 428 } 429 } 430 431 if (dirp) { 432 if (v3) 433 dirattr_ret = VOP_GETATTR(dirp, &dirattr, cred, 434 procp); 435 vrele(dirp); 436 } 437 438 if (error) { 439 nfsm_reply(NFSX_POSTOPATTR(v3)); 440 nfsm_srvpostop_attr(dirattr_ret, &dirattr); 441 return (0); 442 } 443 444 nqsrv_getl(ndp->ni_startdir, ND_READ); 445 vrele(ndp->ni_startdir); 446 PNBUF_PUT(nd.ni_cnd.cn_pnbuf); 447 vp = ndp->ni_vp; 448 memset((caddr_t)fhp, 0, sizeof(nfh)); 449 fhp->fh_fsid = vp->v_mount->mnt_stat.f_fsid; 450 error = VFS_VPTOFH(vp, &fhp->fh_fid); 451 if (!error) 452 error = VOP_GETATTR(vp, &va, cred, procp); 453 vput(vp); 454 nfsm_reply(NFSX_SRVFH(v3) + NFSX_POSTOPORFATTR(v3) + NFSX_POSTOPATTR(v3)); 455 if (error) { 456 nfsm_srvpostop_attr(dirattr_ret, &dirattr); 457 return (0); 458 } 459 nfsm_srvfhtom(fhp, v3); 460 if (v3) { 461 nfsm_srvpostop_attr(0, &va); 462 nfsm_srvpostop_attr(dirattr_ret, &dirattr); 463 } else { 464 nfsm_build(fp, struct nfs_fattr *, NFSX_V2FATTR); 465 nfsm_srvfillattr(&va, fp); 466 } 467 nfsm_srvdone; 468 } 469 470 /* 471 * nfs readlink service 472 */ 473 int 474 nfsrv_readlink(nfsd, slp, procp, mrq) 475 struct nfsrv_descript *nfsd; 476 struct nfssvc_sock *slp; 477 struct proc *procp; 478 struct mbuf **mrq; 479 { 480 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 481 struct mbuf *nam = nfsd->nd_nam; 482 caddr_t dpos = nfsd->nd_dpos; 483 struct ucred *cred = &nfsd->nd_cr; 484 struct iovec iv[(NFS_MAXPATHLEN+MLEN-1)/MLEN]; 485 struct iovec *ivp = iv; 486 struct mbuf *mp; 487 u_int32_t *tl; 488 int32_t t1; 489 caddr_t bpos; 490 int error = 0, rdonly, cache, i, padlen, getret; 491 uint32_t len; 492 int v3 = (nfsd->nd_flag & ND_NFSV3); 493 char *cp2; 494 struct mbuf *mb, *mp2 = NULL, *mp3 = NULL, *mreq; 495 struct vnode *vp; 496 struct vattr attr; 497 nfsfh_t nfh; 498 fhandle_t *fhp; 499 struct uio io, *uiop = &io; 500 u_quad_t frev; 501 502 fhp = &nfh.fh_generic; 503 nfsm_srvmtofh(fhp); 504 len = 0; 505 i = 0; 506 while (len < NFS_MAXPATHLEN) { 507 mp = m_get(M_WAIT, MT_DATA); 508 MCLAIM(mp, &nfs_mowner); 509 m_clget(mp, M_WAIT); 510 mp->m_len = NFSMSIZ(mp); 511 if (len == 0) 512 mp3 = mp2 = mp; 513 else { 514 mp2->m_next = mp; 515 mp2 = mp; 516 } 517 if ((len+mp->m_len) > NFS_MAXPATHLEN) { 518 mp->m_len = NFS_MAXPATHLEN-len; 519 len = NFS_MAXPATHLEN; 520 } else 521 len += mp->m_len; 522 ivp->iov_base = mtod(mp, caddr_t); 523 ivp->iov_len = mp->m_len; 524 i++; 525 ivp++; 526 } 527 uiop->uio_iov = iv; 528 uiop->uio_iovcnt = i; 529 uiop->uio_offset = 0; 530 uiop->uio_resid = len; 531 uiop->uio_rw = UIO_READ; 532 uiop->uio_segflg = UIO_SYSSPACE; 533 uiop->uio_procp = (struct proc *)0; 534 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 535 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 536 if (error) { 537 m_freem(mp3); 538 nfsm_reply(2 * NFSX_UNSIGNED); 539 nfsm_srvpostop_attr(1, (struct vattr *)0); 540 return (0); 541 } 542 if (vp->v_type != VLNK) { 543 if (v3) 544 error = EINVAL; 545 else 546 error = ENXIO; 547 goto out; 548 } 549 nqsrv_getl(vp, ND_READ); 550 error = VOP_READLINK(vp, uiop, cred); 551 out: 552 getret = VOP_GETATTR(vp, &attr, cred, procp); 553 vput(vp); 554 if (error) 555 m_freem(mp3); 556 nfsm_reply(NFSX_POSTOPATTR(v3) + NFSX_UNSIGNED); 557 if (v3) { 558 nfsm_srvpostop_attr(getret, &attr); 559 if (error) 560 return (0); 561 } 562 len -= uiop->uio_resid; 563 padlen = nfsm_padlen(len); 564 if (uiop->uio_resid || padlen) 565 nfs_zeropad(mp3, uiop->uio_resid, padlen); 566 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 567 *tl = txdr_unsigned(len); 568 mb->m_next = mp3; 569 nfsm_srvdone; 570 } 571 572 /* 573 * XXX UBC temp limit 574 * maximum number of pages we can do VOP_GETPAGES and loan-out at once. 575 * should be <= MAX_READ_AHEAD in genfs_vnops.c 576 */ 577 #define NFSD_READ_GETPAGES_CHUNK 16 578 579 /* 580 * nfs read service 581 */ 582 int 583 nfsrv_read(nfsd, slp, procp, mrq) 584 struct nfsrv_descript *nfsd; 585 struct nfssvc_sock *slp; 586 struct proc *procp; 587 struct mbuf **mrq; 588 { 589 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 590 struct mbuf *nam = nfsd->nd_nam; 591 caddr_t dpos = nfsd->nd_dpos; 592 struct ucred *cred = &nfsd->nd_cr; 593 struct mbuf *m; 594 struct nfs_fattr *fp; 595 u_int32_t *tl; 596 int32_t t1; 597 int i; 598 caddr_t bpos; 599 int error = 0, rdonly, cache, getret; 600 int v3 = (nfsd->nd_flag & ND_NFSV3); 601 uint32_t reqlen, len, cnt, left; 602 int padlen; 603 char *cp2; 604 struct mbuf *mb, *mreq; 605 struct vnode *vp; 606 nfsfh_t nfh; 607 fhandle_t *fhp; 608 struct uio io, *uiop = &io; 609 struct vattr va; 610 off_t off; 611 u_quad_t frev; 612 613 fhp = &nfh.fh_generic; 614 nfsm_srvmtofh(fhp); 615 if (v3) { 616 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 617 off = fxdr_hyper(tl); 618 } else { 619 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 620 off = (off_t)fxdr_unsigned(u_int32_t, *tl); 621 } 622 nfsm_dissect(tl, uint32_t *, NFSX_UNSIGNED); 623 reqlen = fxdr_unsigned(uint32_t, *tl); 624 reqlen = MIN(reqlen, NFS_SRVMAXDATA(nfsd)); 625 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 626 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 627 if (error) { 628 nfsm_reply(2 * NFSX_UNSIGNED); 629 nfsm_srvpostop_attr(1, (struct vattr *)0); 630 return (0); 631 } 632 if (vp->v_type != VREG) { 633 if (v3) 634 error = EINVAL; 635 else 636 error = (vp->v_type == VDIR) ? EISDIR : EACCES; 637 } 638 if (!error) { 639 nqsrv_getl(vp, ND_READ); 640 if ((error = nfsrv_access(vp, VREAD, cred, rdonly, procp, 1)) != 0) 641 error = nfsrv_access(vp, VEXEC, cred, rdonly, procp, 1); 642 } 643 getret = VOP_GETATTR(vp, &va, cred, procp); 644 if (!error) 645 error = getret; 646 if (error) { 647 vput(vp); 648 nfsm_reply(NFSX_POSTOPATTR(v3)); 649 nfsm_srvpostop_attr(getret, &va); 650 return (0); 651 } 652 if (off >= va.va_size) 653 cnt = 0; 654 else if ((off + reqlen) > va.va_size) 655 cnt = va.va_size - off; 656 else 657 cnt = reqlen; 658 nfsm_reply(NFSX_POSTOPORFATTR(v3) + 3 * NFSX_UNSIGNED+nfsm_rndup(cnt)); 659 if (v3) { 660 nfsm_build(tl, u_int32_t *, NFSX_V3FATTR + 4 * NFSX_UNSIGNED); 661 *tl++ = nfs_true; 662 fp = (struct nfs_fattr *)tl; 663 tl += (NFSX_V3FATTR / sizeof (u_int32_t)); 664 } else { 665 nfsm_build(tl, u_int32_t *, NFSX_V2FATTR + NFSX_UNSIGNED); 666 fp = (struct nfs_fattr *)tl; 667 tl += (NFSX_V2FATTR / sizeof (u_int32_t)); 668 } 669 len = left = cnt; 670 if (cnt > 0) { 671 if (nfsd_use_loan) { 672 struct vm_page **pgpp; 673 voff_t pgoff = trunc_page(off); 674 int orignpages, nleftpages; 675 vaddr_t lva, curlva; 676 677 orignpages = (round_page(off + cnt) - pgoff) 678 >> PAGE_SHIFT; 679 KASSERT(orignpages <= M_EXT_MAXPAGES); /* XXX */ 680 681 lva = sokvaalloc(orignpages << PAGE_SHIFT, slp->ns_so); 682 if (lva == 0) { 683 /* fall back to VOP_READ */ 684 goto loan_fail; 685 } 686 687 m = m_get(M_WAIT, MT_DATA); 688 pgpp = m->m_ext.ext_pgs; 689 690 curlva = lva; 691 nleftpages = orignpages; 692 while (nleftpages > 0) { 693 int npages = nleftpages; 694 if (npages > NFSD_READ_GETPAGES_CHUNK) 695 npages = NFSD_READ_GETPAGES_CHUNK; 696 again: 697 simple_lock(&vp->v_interlock); 698 error = VOP_GETPAGES(vp, pgoff, pgpp, &npages, 699 0, VM_PROT_READ, 0, PGO_SYNCIO); 700 if (error == EAGAIN) { 701 tsleep(&lbolt, PVM, "nfsread", 0); 702 goto again; 703 } 704 if (error) { 705 uvm_unloan(m->m_ext.ext_pgs, 706 orignpages - nleftpages, 707 UVM_LOAN_TOPAGE); 708 sokvafree(lva, 709 orignpages << PAGE_SHIFT); 710 m_free(m); 711 goto read_error; 712 } 713 714 /* loan and unbusy pages */ 715 simple_lock(&vp->v_interlock); 716 for (i = 0; i < npages; i++) { 717 if (pgpp[i]->flags & PG_RELEASED) { 718 uvm_lock_pageq(); 719 uvm_page_unbusy(pgpp, npages); 720 uvm_unlock_pageq(); 721 simple_unlock(&vp->v_interlock); 722 continue; 723 } 724 } 725 uvm_loanuobjpages(pgpp, npages); 726 simple_unlock(&vp->v_interlock); 727 728 /* map pages */ 729 for (i = 0; i < npages; i++) { 730 pmap_kenter_pa(curlva, 731 VM_PAGE_TO_PHYS(pgpp[i]), 732 VM_PROT_READ); 733 curlva += PAGE_SIZE; 734 } 735 nleftpages -= npages; 736 pgpp += npages; 737 pgoff += npages << PAGE_SHIFT; 738 } 739 740 lva += off & PAGE_MASK; 741 742 MCLAIM(m, &nfs_mowner); 743 MEXTADD(m, (void *)lva, cnt, M_MBUF, soloanfree, 744 slp->ns_so); 745 m->m_flags |= M_EXT_PAGES | M_EXT_ROMAP; 746 m->m_len = cnt; 747 748 pmap_update(pmap_kernel()); 749 mb->m_next = m; 750 mb = m; 751 error = 0; 752 uiop->uio_resid = 0; 753 } else { 754 struct iovec *iv; 755 struct iovec *iv2; 756 struct mbuf *m2; 757 int siz; 758 loan_fail: 759 /* 760 * Generate the mbuf list with the uio_iov ref. to it. 761 */ 762 i = 0; 763 m = m2 = mb; 764 while (left > 0) { 765 siz = min(M_TRAILINGSPACE(m), left); 766 if (siz > 0) { 767 left -= siz; 768 i++; 769 } 770 if (left > 0) { 771 m = m_get(M_WAIT, MT_DATA); 772 MCLAIM(m, &nfs_mowner); 773 m_clget(m, M_WAIT); 774 m->m_len = 0; 775 m2->m_next = m; 776 m2 = m; 777 } 778 } 779 iv = malloc(i * sizeof(struct iovec), M_TEMP, M_WAITOK); 780 uiop->uio_iov = iv2 = iv; 781 m = mb; 782 left = cnt; 783 i = 0; 784 while (left > 0) { 785 if (m == NULL) 786 panic("nfsrv_read iov"); 787 siz = min(M_TRAILINGSPACE(m), left); 788 if (siz > 0) { 789 iv->iov_base = mtod(m, caddr_t) + 790 m->m_len; 791 iv->iov_len = siz; 792 m->m_len += siz; 793 left -= siz; 794 iv++; 795 i++; 796 } 797 m = m->m_next; 798 } 799 uiop->uio_iovcnt = i; 800 uiop->uio_offset = off; 801 uiop->uio_resid = cnt; 802 uiop->uio_rw = UIO_READ; 803 uiop->uio_segflg = UIO_SYSSPACE; 804 error = VOP_READ(vp, uiop, IO_NODELOCKED, cred); 805 off = uiop->uio_offset; 806 free((caddr_t)iv2, M_TEMP); 807 } 808 read_error: 809 if (error || (getret = VOP_GETATTR(vp, &va, cred, procp)) != 0){ 810 if (!error) 811 error = getret; 812 m_freem(mreq); 813 vput(vp); 814 nfsm_reply(NFSX_POSTOPATTR(v3)); 815 nfsm_srvpostop_attr(getret, &va); 816 return (0); 817 } 818 } else { 819 uiop->uio_resid = 0; 820 } 821 vput(vp); 822 nfsm_srvfillattr(&va, fp); 823 len -= uiop->uio_resid; 824 padlen = nfsm_padlen(len); 825 if (uiop->uio_resid || padlen) 826 nfs_zeropad(mb, uiop->uio_resid, padlen); 827 if (v3) { 828 *tl++ = txdr_unsigned(len); 829 if (len < reqlen) 830 *tl++ = nfs_true; 831 else 832 *tl++ = nfs_false; 833 } 834 *tl = txdr_unsigned(len); 835 nfsm_srvdone; 836 } 837 838 /* 839 * nfs write service 840 */ 841 int 842 nfsrv_write(nfsd, slp, procp, mrq) 843 struct nfsrv_descript *nfsd; 844 struct nfssvc_sock *slp; 845 struct proc *procp; 846 struct mbuf **mrq; 847 { 848 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 849 struct mbuf *nam = nfsd->nd_nam; 850 caddr_t dpos = nfsd->nd_dpos; 851 struct ucred *cred = &nfsd->nd_cr; 852 struct iovec *ivp; 853 int i, cnt; 854 struct mbuf *mp; 855 struct nfs_fattr *fp; 856 struct iovec *iv; 857 struct vattr va, forat; 858 u_int32_t *tl; 859 int32_t t1; 860 caddr_t bpos; 861 int error = 0, rdonly, cache, len, forat_ret = 1; 862 int ioflags, aftat_ret = 1, retlen, zeroing, adjust; 863 int stable = NFSV3WRITE_FILESYNC; 864 int v3 = (nfsd->nd_flag & ND_NFSV3); 865 char *cp2; 866 struct mbuf *mb, *mreq; 867 struct vnode *vp; 868 nfsfh_t nfh; 869 fhandle_t *fhp; 870 struct uio io, *uiop = &io; 871 off_t off; 872 u_quad_t frev; 873 struct mount *mntp = NULL; 874 875 if (mrep == NULL) { 876 *mrq = NULL; 877 return (0); 878 } 879 fhp = &nfh.fh_generic; 880 nfsm_srvmtofh(fhp); 881 if ((mntp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 882 return (ESTALE); 883 vn_start_write(NULL, &mntp, V_WAIT); 884 if (v3) { 885 nfsm_dissect(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 886 off = fxdr_hyper(tl); 887 tl += 3; 888 stable = fxdr_unsigned(int, *tl++); 889 } else { 890 nfsm_dissect(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 891 off = (off_t)fxdr_unsigned(u_int32_t, *++tl); 892 tl += 2; 893 } 894 retlen = len = fxdr_unsigned(int32_t, *tl); 895 cnt = i = 0; 896 897 /* 898 * For NFS Version 2, it is not obvious what a write of zero length 899 * should do, but I might as well be consistent with Version 3, 900 * which is to return ok so long as there are no permission problems. 901 */ 902 if (len > 0) { 903 zeroing = 1; 904 mp = mrep; 905 while (mp) { 906 if (mp == md) { 907 zeroing = 0; 908 adjust = dpos - mtod(mp, caddr_t); 909 mp->m_len -= adjust; 910 if (mp->m_len > 0 && adjust > 0) 911 NFSMADV(mp, adjust); 912 } 913 if (zeroing) 914 mp->m_len = 0; 915 else if (mp->m_len > 0) { 916 i += mp->m_len; 917 if (i > len) { 918 mp->m_len -= (i - len); 919 zeroing = 1; 920 } 921 if (mp->m_len > 0) 922 cnt++; 923 } 924 mp = mp->m_next; 925 } 926 } 927 if (len > NFS_MAXDATA || len < 0 || i < len) { 928 error = EIO; 929 nfsm_reply(2 * NFSX_UNSIGNED); 930 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 931 vn_finished_write(mntp, 0); 932 return (0); 933 } 934 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 935 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 936 if (error) { 937 nfsm_reply(2 * NFSX_UNSIGNED); 938 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 939 vn_finished_write(mntp, 0); 940 return (0); 941 } 942 if (v3) 943 forat_ret = VOP_GETATTR(vp, &forat, cred, procp); 944 if (vp->v_type != VREG) { 945 if (v3) 946 error = EINVAL; 947 else 948 error = (vp->v_type == VDIR) ? EISDIR : EACCES; 949 } 950 if (!error) { 951 nqsrv_getl(vp, ND_WRITE); 952 error = nfsrv_access(vp, VWRITE, cred, rdonly, procp, 1); 953 } 954 if (error) { 955 vput(vp); 956 nfsm_reply(NFSX_WCCDATA(v3)); 957 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 958 vn_finished_write(mntp, 0); 959 return (0); 960 } 961 962 if (len > 0) { 963 ivp = malloc(cnt * sizeof (struct iovec), M_TEMP, M_WAITOK); 964 uiop->uio_iov = iv = ivp; 965 uiop->uio_iovcnt = cnt; 966 mp = mrep; 967 while (mp) { 968 if (mp->m_len > 0) { 969 ivp->iov_base = mtod(mp, caddr_t); 970 ivp->iov_len = mp->m_len; 971 ivp++; 972 } 973 mp = mp->m_next; 974 } 975 976 /* 977 * XXX 978 * The IO_METASYNC flag indicates that all metadata (and not 979 * just enough to ensure data integrity) must be written to 980 * stable storage synchronously. 981 * (IO_METASYNC is not yet implemented in 4.4BSD-Lite.) 982 */ 983 if (stable == NFSV3WRITE_UNSTABLE) 984 ioflags = IO_NODELOCKED; 985 else if (stable == NFSV3WRITE_DATASYNC) 986 ioflags = (IO_SYNC | IO_NODELOCKED); 987 else 988 ioflags = (IO_METASYNC | IO_SYNC | IO_NODELOCKED); 989 uiop->uio_resid = len; 990 uiop->uio_rw = UIO_WRITE; 991 uiop->uio_segflg = UIO_SYSSPACE; 992 uiop->uio_procp = (struct proc *)0; 993 uiop->uio_offset = off; 994 error = VOP_WRITE(vp, uiop, ioflags, cred); 995 nfsstats.srvvop_writes++; 996 free(iv, M_TEMP); 997 } 998 aftat_ret = VOP_GETATTR(vp, &va, cred, procp); 999 vput(vp); 1000 vn_finished_write(mntp, 0); 1001 if (!error) 1002 error = aftat_ret; 1003 nfsm_reply(NFSX_PREOPATTR(v3) + NFSX_POSTOPORFATTR(v3) + 1004 2 * NFSX_UNSIGNED + NFSX_WRITEVERF(v3)); 1005 if (v3) { 1006 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 1007 if (error) 1008 return (0); 1009 nfsm_build(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1010 *tl++ = txdr_unsigned(retlen); 1011 if (stable == NFSV3WRITE_UNSTABLE) 1012 *tl++ = txdr_unsigned(stable); 1013 else 1014 *tl++ = txdr_unsigned(NFSV3WRITE_FILESYNC); 1015 /* 1016 * Actually, there is no need to txdr these fields, 1017 * but it may make the values more human readable, 1018 * for debugging purposes. 1019 */ 1020 *tl++ = txdr_unsigned(boottime.tv_sec); 1021 *tl = txdr_unsigned(boottime.tv_usec); 1022 } else { 1023 nfsm_build(fp, struct nfs_fattr *, NFSX_V2FATTR); 1024 nfsm_srvfillattr(&va, fp); 1025 } 1026 nfsm_srvdone; 1027 } 1028 1029 /* 1030 * NFS write service with write gathering support. Called when 1031 * nfsrvw_procrastinate > 0. 1032 * See: Chet Juszczak, "Improving the Write Performance of an NFS Server", 1033 * in Proc. of the Winter 1994 Usenix Conference, pg. 247-259, San Franscisco, 1034 * Jan. 1994. 1035 */ 1036 int 1037 nfsrv_writegather(ndp, slp, procp, mrq) 1038 struct nfsrv_descript **ndp; 1039 struct nfssvc_sock *slp; 1040 struct proc *procp; 1041 struct mbuf **mrq; 1042 { 1043 struct iovec *ivp; 1044 struct mbuf *mp; 1045 struct nfsrv_descript *wp, *nfsd, *owp, *swp; 1046 struct nfs_fattr *fp; 1047 int i = 0; 1048 struct iovec *iov; 1049 struct nfsrvw_delayhash *wpp; 1050 struct ucred *cred; 1051 struct vattr va, forat; 1052 u_int32_t *tl; 1053 int32_t t1; 1054 caddr_t bpos, dpos; 1055 int error = 0, rdonly, cache, len = 0, forat_ret = 1; 1056 int ioflags, aftat_ret = 1, s, adjust, v3, zeroing; 1057 char *cp2; 1058 struct mbuf *mb, *mreq, *mrep, *md; 1059 struct vnode *vp; 1060 struct uio io, *uiop = &io; 1061 u_quad_t frev, cur_usec; 1062 struct mount *mntp = NULL; 1063 1064 *mrq = NULL; 1065 if (*ndp) { 1066 nfsd = *ndp; 1067 *ndp = NULL; 1068 mrep = nfsd->nd_mrep; 1069 md = nfsd->nd_md; 1070 dpos = nfsd->nd_dpos; 1071 cred = &nfsd->nd_cr; 1072 v3 = (nfsd->nd_flag & ND_NFSV3); 1073 LIST_INIT(&nfsd->nd_coalesce); 1074 nfsd->nd_mreq = NULL; 1075 nfsd->nd_stable = NFSV3WRITE_FILESYNC; 1076 cur_usec = (u_quad_t)time.tv_sec * 1000000 + (u_quad_t)time.tv_usec; 1077 nfsd->nd_time = cur_usec + nfsrvw_procrastinate; 1078 1079 /* 1080 * Now, get the write header.. 1081 */ 1082 nfsm_srvmtofh(&nfsd->nd_fh); 1083 if (v3) { 1084 nfsm_dissect(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1085 nfsd->nd_off = fxdr_hyper(tl); 1086 tl += 3; 1087 nfsd->nd_stable = fxdr_unsigned(int, *tl++); 1088 } else { 1089 nfsm_dissect(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1090 nfsd->nd_off = (off_t)fxdr_unsigned(u_int32_t, *++tl); 1091 tl += 2; 1092 } 1093 len = fxdr_unsigned(int32_t, *tl); 1094 nfsd->nd_len = len; 1095 nfsd->nd_eoff = nfsd->nd_off + len; 1096 1097 /* 1098 * Trim the header out of the mbuf list and trim off any trailing 1099 * junk so that the mbuf list has only the write data. 1100 */ 1101 zeroing = 1; 1102 i = 0; 1103 mp = mrep; 1104 while (mp) { 1105 if (mp == md) { 1106 zeroing = 0; 1107 adjust = dpos - mtod(mp, caddr_t); 1108 mp->m_len -= adjust; 1109 if (mp->m_len > 0 && adjust > 0) 1110 NFSMADV(mp, adjust); 1111 } 1112 if (zeroing) 1113 mp->m_len = 0; 1114 else { 1115 i += mp->m_len; 1116 if (i > len) { 1117 mp->m_len -= (i - len); 1118 zeroing = 1; 1119 } 1120 } 1121 mp = mp->m_next; 1122 } 1123 if (len > NFS_MAXDATA || len < 0 || i < len) { 1124 nfsmout: 1125 m_freem(mrep); 1126 error = EIO; 1127 nfsm_writereply(2 * NFSX_UNSIGNED, v3); 1128 if (v3) 1129 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 1130 nfsd->nd_mreq = mreq; 1131 nfsd->nd_mrep = NULL; 1132 nfsd->nd_time = 0; 1133 } 1134 1135 /* 1136 * Add this entry to the hash and time queues. 1137 */ 1138 s = splsoftclock(); 1139 owp = NULL; 1140 wp = LIST_FIRST(&slp->ns_tq); 1141 while (wp && wp->nd_time < nfsd->nd_time) { 1142 owp = wp; 1143 wp = LIST_NEXT(wp, nd_tq); 1144 } 1145 if (owp) { 1146 LIST_INSERT_AFTER(owp, nfsd, nd_tq); 1147 } else { 1148 LIST_INSERT_HEAD(&slp->ns_tq, nfsd, nd_tq); 1149 } 1150 if (nfsd->nd_mrep) { 1151 wpp = NWDELAYHASH(slp, nfsd->nd_fh.fh_fid.fid_data); 1152 owp = NULL; 1153 wp = LIST_FIRST(wpp); 1154 while (wp && 1155 memcmp((caddr_t)&nfsd->nd_fh, (caddr_t)&wp->nd_fh, NFSX_V3FH)) { 1156 owp = wp; 1157 wp = LIST_NEXT(wp, nd_hash); 1158 } 1159 while (wp && wp->nd_off < nfsd->nd_off && 1160 !memcmp((caddr_t)&nfsd->nd_fh, (caddr_t)&wp->nd_fh, NFSX_V3FH)) { 1161 owp = wp; 1162 wp = LIST_NEXT(wp, nd_hash); 1163 } 1164 if (owp) { 1165 LIST_INSERT_AFTER(owp, nfsd, nd_hash); 1166 1167 /* 1168 * Search the hash list for overlapping entries and 1169 * coalesce. 1170 */ 1171 for(; nfsd && NFSW_CONTIG(owp, nfsd); nfsd = wp) { 1172 wp = LIST_NEXT(nfsd, nd_hash); 1173 if (NFSW_SAMECRED(owp, nfsd)) 1174 nfsrvw_coalesce(owp, nfsd); 1175 } 1176 } else { 1177 LIST_INSERT_HEAD(wpp, nfsd, nd_hash); 1178 } 1179 } 1180 splx(s); 1181 } 1182 1183 /* 1184 * Now, do VOP_WRITE()s for any one(s) that need to be done now 1185 * and generate the associated reply mbuf list(s). 1186 */ 1187 loop1: 1188 cur_usec = (u_quad_t)time.tv_sec * 1000000 + (u_quad_t)time.tv_usec; 1189 s = splsoftclock(); 1190 for (nfsd = LIST_FIRST(&slp->ns_tq); nfsd; nfsd = owp) { 1191 owp = LIST_NEXT(nfsd, nd_tq); 1192 if (nfsd->nd_time > cur_usec) 1193 break; 1194 if (nfsd->nd_mreq) 1195 continue; 1196 LIST_REMOVE(nfsd, nd_tq); 1197 LIST_REMOVE(nfsd, nd_hash); 1198 splx(s); 1199 mrep = nfsd->nd_mrep; 1200 nfsd->nd_mrep = NULL; 1201 cred = &nfsd->nd_cr; 1202 v3 = (nfsd->nd_flag & ND_NFSV3); 1203 forat_ret = aftat_ret = 1; 1204 error = nfsrv_fhtovp(&nfsd->nd_fh, 1, &vp, cred, slp, 1205 nfsd->nd_nam, &rdonly, (nfsd->nd_flag & ND_KERBAUTH), 1206 FALSE); 1207 if (!error) { 1208 if (v3) 1209 forat_ret = VOP_GETATTR(vp, &forat, cred, procp); 1210 if (vp->v_type != VREG) { 1211 if (v3) 1212 error = EINVAL; 1213 else 1214 error = (vp->v_type == VDIR) ? EISDIR : EACCES; 1215 } 1216 } else 1217 vp = NULL; 1218 if (!error) { 1219 nqsrv_getl(vp, ND_WRITE); 1220 error = nfsrv_access(vp, VWRITE, cred, rdonly, procp, 1); 1221 } 1222 1223 if (nfsd->nd_stable == NFSV3WRITE_UNSTABLE) 1224 ioflags = IO_NODELOCKED; 1225 else if (nfsd->nd_stable == NFSV3WRITE_DATASYNC) 1226 ioflags = (IO_SYNC | IO_NODELOCKED); 1227 else 1228 ioflags = (IO_METASYNC | IO_SYNC | IO_NODELOCKED); 1229 uiop->uio_rw = UIO_WRITE; 1230 uiop->uio_segflg = UIO_SYSSPACE; 1231 uiop->uio_procp = (struct proc *)0; 1232 uiop->uio_offset = nfsd->nd_off; 1233 uiop->uio_resid = nfsd->nd_eoff - nfsd->nd_off; 1234 if (uiop->uio_resid > 0) { 1235 mp = mrep; 1236 i = 0; 1237 while (mp) { 1238 if (mp->m_len > 0) 1239 i++; 1240 mp = mp->m_next; 1241 } 1242 uiop->uio_iovcnt = i; 1243 iov = malloc(i * sizeof (struct iovec), M_TEMP, M_WAITOK); 1244 uiop->uio_iov = ivp = iov; 1245 mp = mrep; 1246 while (mp) { 1247 if (mp->m_len > 0) { 1248 ivp->iov_base = mtod(mp, caddr_t); 1249 ivp->iov_len = mp->m_len; 1250 ivp++; 1251 } 1252 mp = mp->m_next; 1253 } 1254 if (!error) { 1255 if (vn_start_write(vp, &mntp, V_NOWAIT) != 0) { 1256 VOP_UNLOCK(vp, 0); 1257 error = vn_start_write(NULL, &mntp, V_WAIT); 1258 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 1259 } 1260 if (!error) { 1261 error = VOP_WRITE(vp, uiop, ioflags, cred); 1262 nfsstats.srvvop_writes++; 1263 vn_finished_write(mntp, 0); 1264 } 1265 } 1266 free((caddr_t)iov, M_TEMP); 1267 } 1268 m_freem(mrep); 1269 if (vp) { 1270 aftat_ret = VOP_GETATTR(vp, &va, cred, procp); 1271 vput(vp); 1272 } 1273 1274 /* 1275 * Loop around generating replies for all write rpcs that have 1276 * now been completed. 1277 */ 1278 swp = nfsd; 1279 do { 1280 if (error) { 1281 nfsm_writereply(NFSX_WCCDATA(v3), v3); 1282 if (v3) { 1283 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 1284 } 1285 } else { 1286 nfsm_writereply(NFSX_PREOPATTR(v3) + 1287 NFSX_POSTOPORFATTR(v3) + 2 * NFSX_UNSIGNED + 1288 NFSX_WRITEVERF(v3), v3); 1289 if (v3) { 1290 nfsm_srvwcc_data(forat_ret, &forat, aftat_ret, &va); 1291 nfsm_build(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1292 *tl++ = txdr_unsigned(nfsd->nd_len); 1293 *tl++ = txdr_unsigned(swp->nd_stable); 1294 /* 1295 * Actually, there is no need to txdr these fields, 1296 * but it may make the values more human readable, 1297 * for debugging purposes. 1298 */ 1299 *tl++ = txdr_unsigned(boottime.tv_sec); 1300 *tl = txdr_unsigned(boottime.tv_usec); 1301 } else { 1302 nfsm_build(fp, struct nfs_fattr *, NFSX_V2FATTR); 1303 nfsm_srvfillattr(&va, fp); 1304 } 1305 } 1306 nfsd->nd_mreq = mreq; 1307 if (nfsd->nd_mrep) 1308 panic("nfsrv_write: nd_mrep not free"); 1309 1310 /* 1311 * Done. Put it at the head of the timer queue so that 1312 * the final phase can return the reply. 1313 */ 1314 s = splsoftclock(); 1315 if (nfsd != swp) { 1316 nfsd->nd_time = 0; 1317 LIST_INSERT_HEAD(&slp->ns_tq, nfsd, nd_tq); 1318 } 1319 nfsd = LIST_FIRST(&swp->nd_coalesce); 1320 if (nfsd) { 1321 LIST_REMOVE(nfsd, nd_tq); 1322 } 1323 splx(s); 1324 } while (nfsd); 1325 s = splsoftclock(); 1326 swp->nd_time = 0; 1327 LIST_INSERT_HEAD(&slp->ns_tq, swp, nd_tq); 1328 splx(s); 1329 goto loop1; 1330 } 1331 splx(s); 1332 1333 /* 1334 * Search for a reply to return. 1335 */ 1336 s = splsoftclock(); 1337 LIST_FOREACH(nfsd, &slp->ns_tq, nd_tq) { 1338 if (nfsd->nd_mreq) { 1339 LIST_REMOVE(nfsd, nd_tq); 1340 *mrq = nfsd->nd_mreq; 1341 *ndp = nfsd; 1342 break; 1343 } 1344 } 1345 splx(s); 1346 return (0); 1347 } 1348 1349 /* 1350 * Coalesce the write request nfsd into owp. To do this we must: 1351 * - remove nfsd from the queues 1352 * - merge nfsd->nd_mrep into owp->nd_mrep 1353 * - update the nd_eoff and nd_stable for owp 1354 * - put nfsd on owp's nd_coalesce list 1355 * NB: Must be called at splsoftclock(). 1356 */ 1357 void 1358 nfsrvw_coalesce(owp, nfsd) 1359 struct nfsrv_descript *owp; 1360 struct nfsrv_descript *nfsd; 1361 { 1362 int overlap; 1363 struct mbuf *mp; 1364 struct nfsrv_descript *m; 1365 1366 LIST_REMOVE(nfsd, nd_hash); 1367 LIST_REMOVE(nfsd, nd_tq); 1368 if (owp->nd_eoff < nfsd->nd_eoff) { 1369 overlap = owp->nd_eoff - nfsd->nd_off; 1370 if (overlap < 0) 1371 panic("nfsrv_coalesce: bad off"); 1372 if (overlap > 0) 1373 m_adj(nfsd->nd_mrep, overlap); 1374 mp = owp->nd_mrep; 1375 while (mp->m_next) 1376 mp = mp->m_next; 1377 mp->m_next = nfsd->nd_mrep; 1378 owp->nd_eoff = nfsd->nd_eoff; 1379 } else 1380 m_freem(nfsd->nd_mrep); 1381 nfsd->nd_mrep = NULL; 1382 if (nfsd->nd_stable == NFSV3WRITE_FILESYNC) 1383 owp->nd_stable = NFSV3WRITE_FILESYNC; 1384 else if (nfsd->nd_stable == NFSV3WRITE_DATASYNC && 1385 owp->nd_stable == NFSV3WRITE_UNSTABLE) 1386 owp->nd_stable = NFSV3WRITE_DATASYNC; 1387 LIST_INSERT_HEAD(&owp->nd_coalesce, nfsd, nd_tq); 1388 /* 1389 * nfsd might hold coalesce elements! Move them to owp. 1390 * Otherwise, requests may be lost and clients will be stuck. 1391 */ 1392 while ((m = LIST_FIRST(&nfsd->nd_coalesce)) != NULL) { 1393 LIST_REMOVE(m, nd_tq); 1394 LIST_INSERT_HEAD(&owp->nd_coalesce, m, nd_tq); 1395 } 1396 } 1397 1398 /* 1399 * nfs create service 1400 * now does a truncate to 0 length via. setattr if it already exists 1401 */ 1402 int 1403 nfsrv_create(nfsd, slp, procp, mrq) 1404 struct nfsrv_descript *nfsd; 1405 struct nfssvc_sock *slp; 1406 struct proc *procp; 1407 struct mbuf **mrq; 1408 { 1409 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 1410 struct mbuf *nam = nfsd->nd_nam; 1411 caddr_t dpos = nfsd->nd_dpos; 1412 struct ucred *cred = &nfsd->nd_cr; 1413 struct nfs_fattr *fp; 1414 struct vattr va, dirfor, diraft; 1415 struct nfsv2_sattr *sp; 1416 u_int32_t *tl; 1417 struct nameidata nd; 1418 caddr_t cp; 1419 int32_t t1; 1420 caddr_t bpos; 1421 int error = 0, cache, len, tsize, dirfor_ret = 1, diraft_ret = 1; 1422 int rdev = 0; 1423 int v3 = (nfsd->nd_flag & ND_NFSV3), how, exclusive_flag = 0; 1424 char *cp2; 1425 struct mbuf *mb, *mreq; 1426 struct vnode *vp = NULL, *dirp = NULL; 1427 nfsfh_t nfh; 1428 fhandle_t *fhp; 1429 u_quad_t frev, tempsize; 1430 u_char cverf[NFSX_V3CREATEVERF]; 1431 struct mount *mp = NULL; 1432 1433 nd.ni_cnd.cn_nameiop = 0; 1434 fhp = &nfh.fh_generic; 1435 nfsm_srvmtofh(fhp); 1436 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 1437 return (ESTALE); 1438 vn_start_write(NULL, &mp, V_WAIT); 1439 nfsm_srvnamesiz(len); 1440 nd.ni_cnd.cn_cred = cred; 1441 nd.ni_cnd.cn_nameiop = CREATE; 1442 nd.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF; 1443 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 1444 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 1445 if (dirp) { 1446 if (v3) 1447 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, 1448 procp); 1449 else { 1450 vrele(dirp); 1451 dirp = (struct vnode *)0; 1452 } 1453 } 1454 if (error) { 1455 nfsm_reply(NFSX_WCCDATA(v3)); 1456 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 1457 if (dirp) 1458 vrele(dirp); 1459 vn_finished_write(mp, 0); 1460 return (0); 1461 } 1462 VATTR_NULL(&va); 1463 if (v3) { 1464 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 1465 how = fxdr_unsigned(int, *tl); 1466 switch (how) { 1467 case NFSV3CREATE_GUARDED: 1468 if (nd.ni_vp) { 1469 error = EEXIST; 1470 break; 1471 } 1472 case NFSV3CREATE_UNCHECKED: 1473 nfsm_srvsattr(&va); 1474 break; 1475 case NFSV3CREATE_EXCLUSIVE: 1476 nfsm_dissect(cp, caddr_t, NFSX_V3CREATEVERF); 1477 memcpy(cverf, cp, NFSX_V3CREATEVERF); 1478 exclusive_flag = 1; 1479 if (nd.ni_vp == NULL) 1480 va.va_mode = 0; 1481 break; 1482 }; 1483 va.va_type = VREG; 1484 } else { 1485 nfsm_dissect(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 1486 va.va_type = IFTOVT(fxdr_unsigned(u_int32_t, sp->sa_mode)); 1487 if (va.va_type == VNON) 1488 va.va_type = VREG; 1489 va.va_mode = nfstov_mode(sp->sa_mode); 1490 switch (va.va_type) { 1491 case VREG: 1492 tsize = fxdr_unsigned(int32_t, sp->sa_size); 1493 if (tsize != -1) 1494 va.va_size = (u_quad_t)tsize; 1495 break; 1496 case VCHR: 1497 case VBLK: 1498 case VFIFO: 1499 rdev = fxdr_unsigned(int32_t, sp->sa_size); 1500 break; 1501 default: 1502 break; 1503 }; 1504 } 1505 1506 /* 1507 * Iff doesn't exist, create it 1508 * otherwise just truncate to 0 length 1509 * should I set the mode too ?? 1510 */ 1511 if (nd.ni_vp == NULL) { 1512 if (va.va_type == VREG || va.va_type == VSOCK) { 1513 nqsrv_getl(nd.ni_dvp, ND_WRITE); 1514 error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &va); 1515 if (!error) { 1516 if (exclusive_flag) { 1517 exclusive_flag = 0; 1518 VATTR_NULL(&va); 1519 memcpy((caddr_t)&va.va_atime, cverf, 1520 NFSX_V3CREATEVERF); 1521 error = VOP_SETATTR(nd.ni_vp, &va, cred, 1522 procp); 1523 } 1524 } 1525 } else if (va.va_type == VCHR || va.va_type == VBLK || 1526 va.va_type == VFIFO) { 1527 if (va.va_type == VCHR && rdev == 0xffffffff) 1528 va.va_type = VFIFO; 1529 if (va.va_type != VFIFO && 1530 (error = suser(cred, (u_short *)0))) { 1531 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1532 vput(nd.ni_dvp); 1533 nfsm_reply(0); 1534 vn_finished_write(mp, 0); 1535 return (error); 1536 } else 1537 va.va_rdev = (dev_t)rdev; 1538 nqsrv_getl(nd.ni_dvp, ND_WRITE); 1539 error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, 1540 &va); 1541 if (error) { 1542 nfsm_reply(0); 1543 } 1544 if (nd.ni_cnd.cn_flags & ISSYMLINK) { 1545 vrele(nd.ni_dvp); 1546 vput(nd.ni_vp); 1547 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1548 error = EINVAL; 1549 nfsm_reply(0); 1550 } 1551 } else { 1552 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1553 vput(nd.ni_dvp); 1554 error = ENXIO; 1555 } 1556 vp = nd.ni_vp; 1557 } else { 1558 vp = nd.ni_vp; 1559 if (nd.ni_dvp == vp) 1560 vrele(nd.ni_dvp); 1561 else 1562 vput(nd.ni_dvp); 1563 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1564 if (!error && va.va_size != -1) { 1565 error = nfsrv_access(vp, VWRITE, cred, 1566 (nd.ni_cnd.cn_flags & RDONLY), procp, 0); 1567 if (!error) { 1568 nqsrv_getl(vp, ND_WRITE); 1569 tempsize = va.va_size; 1570 VATTR_NULL(&va); 1571 va.va_size = tempsize; 1572 error = VOP_SETATTR(vp, &va, cred, 1573 procp); 1574 } 1575 } 1576 if (error) 1577 vput(vp); 1578 } 1579 if (!error) { 1580 memset((caddr_t)fhp, 0, sizeof(nfh)); 1581 fhp->fh_fsid = vp->v_mount->mnt_stat.f_fsid; 1582 error = VFS_VPTOFH(vp, &fhp->fh_fid); 1583 if (!error) 1584 error = VOP_GETATTR(vp, &va, cred, procp); 1585 vput(vp); 1586 } 1587 if (v3) { 1588 if (exclusive_flag && !error && 1589 memcmp(cverf, (caddr_t)&va.va_atime, NFSX_V3CREATEVERF)) 1590 error = EEXIST; 1591 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 1592 vrele(dirp); 1593 } 1594 nfsm_reply(NFSX_SRVFH(v3) + NFSX_FATTR(v3) + NFSX_WCCDATA(v3)); 1595 if (v3) { 1596 if (!error) { 1597 nfsm_srvpostop_fh(fhp); 1598 nfsm_srvpostop_attr(0, &va); 1599 } 1600 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 1601 } else { 1602 nfsm_srvfhtom(fhp, v3); 1603 nfsm_build(fp, struct nfs_fattr *, NFSX_V2FATTR); 1604 nfsm_srvfillattr(&va, fp); 1605 } 1606 vn_finished_write(mp, 0); 1607 return (0); 1608 nfsmout: 1609 if (dirp) 1610 vrele(dirp); 1611 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1612 if (nd.ni_dvp == nd.ni_vp) 1613 vrele(nd.ni_dvp); 1614 else 1615 vput(nd.ni_dvp); 1616 if (nd.ni_vp) 1617 vput(nd.ni_vp); 1618 vn_finished_write(mp, 0); 1619 return (error); 1620 } 1621 1622 /* 1623 * nfs v3 mknod service 1624 */ 1625 int 1626 nfsrv_mknod(nfsd, slp, procp, mrq) 1627 struct nfsrv_descript *nfsd; 1628 struct nfssvc_sock *slp; 1629 struct proc *procp; 1630 struct mbuf **mrq; 1631 { 1632 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 1633 struct mbuf *nam = nfsd->nd_nam; 1634 caddr_t dpos = nfsd->nd_dpos; 1635 struct ucred *cred = &nfsd->nd_cr; 1636 struct vattr va, dirfor, diraft; 1637 u_int32_t *tl; 1638 struct nameidata nd; 1639 int32_t t1; 1640 caddr_t bpos; 1641 int error = 0, cache, len, dirfor_ret = 1, diraft_ret = 1; 1642 u_int32_t major, minor; 1643 enum vtype vtyp; 1644 char *cp2; 1645 struct mbuf *mb, *mreq; 1646 struct vnode *vp, *dirp = (struct vnode *)0; 1647 nfsfh_t nfh; 1648 fhandle_t *fhp; 1649 u_quad_t frev; 1650 struct mount *mp = NULL; 1651 1652 nd.ni_cnd.cn_nameiop = 0; 1653 fhp = &nfh.fh_generic; 1654 nfsm_srvmtofh(fhp); 1655 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 1656 return (ESTALE); 1657 vn_start_write(NULL, &mp, V_WAIT); 1658 nfsm_srvnamesiz(len); 1659 nd.ni_cnd.cn_cred = cred; 1660 nd.ni_cnd.cn_nameiop = CREATE; 1661 nd.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF; 1662 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 1663 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 1664 if (dirp) 1665 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, procp); 1666 if (error) { 1667 nfsm_reply(NFSX_WCCDATA(1)); 1668 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 1669 if (dirp) 1670 vrele(dirp); 1671 vn_finished_write(mp, 0); 1672 return (0); 1673 } 1674 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 1675 vtyp = nfsv3tov_type(*tl); 1676 if (vtyp != VCHR && vtyp != VBLK && vtyp != VSOCK && vtyp != VFIFO) { 1677 error = NFSERR_BADTYPE; 1678 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1679 if (nd.ni_dvp == nd.ni_vp) 1680 vrele(nd.ni_dvp); 1681 else 1682 vput(nd.ni_dvp); 1683 if (nd.ni_vp) 1684 vput(nd.ni_vp); 1685 goto out; 1686 } 1687 VATTR_NULL(&va); 1688 nfsm_srvsattr(&va); 1689 if (vtyp == VCHR || vtyp == VBLK) { 1690 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1691 major = fxdr_unsigned(u_int32_t, *tl++); 1692 minor = fxdr_unsigned(u_int32_t, *tl); 1693 va.va_rdev = makedev(major, minor); 1694 } 1695 1696 /* 1697 * Iff doesn't exist, create it. 1698 */ 1699 if (nd.ni_vp) { 1700 error = EEXIST; 1701 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1702 if (nd.ni_dvp == nd.ni_vp) 1703 vrele(nd.ni_dvp); 1704 else 1705 vput(nd.ni_dvp); 1706 vput(nd.ni_vp); 1707 goto out; 1708 } 1709 va.va_type = vtyp; 1710 if (vtyp == VSOCK) { 1711 nqsrv_getl(nd.ni_dvp, ND_WRITE); 1712 error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &va); 1713 } else { 1714 if (va.va_type != VFIFO && 1715 (error = suser(cred, (u_short *)0))) { 1716 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1717 vput(nd.ni_dvp); 1718 goto out; 1719 } 1720 nqsrv_getl(nd.ni_dvp, ND_WRITE); 1721 error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &va); 1722 if (error) { 1723 goto out; 1724 } 1725 if (error) 1726 goto out; 1727 if (nd.ni_cnd.cn_flags & ISSYMLINK) { 1728 vput(nd.ni_vp); 1729 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1730 error = EINVAL; 1731 } 1732 } 1733 out: 1734 vp = nd.ni_vp; 1735 if (!error) { 1736 memset((caddr_t)fhp, 0, sizeof(nfh)); 1737 fhp->fh_fsid = vp->v_mount->mnt_stat.f_fsid; 1738 error = VFS_VPTOFH(vp, &fhp->fh_fid); 1739 if (!error) 1740 error = VOP_GETATTR(vp, &va, cred, procp); 1741 vput(vp); 1742 } 1743 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 1744 vrele(dirp); 1745 nfsm_reply(NFSX_SRVFH(1) + NFSX_POSTOPATTR(1) + NFSX_WCCDATA(1)); 1746 if (!error) { 1747 nfsm_srvpostop_fh(fhp); 1748 nfsm_srvpostop_attr(0, &va); 1749 } 1750 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 1751 vn_finished_write(mp, 0); 1752 return (0); 1753 nfsmout: 1754 if (dirp) 1755 vrele(dirp); 1756 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1757 if (nd.ni_dvp == nd.ni_vp) 1758 vrele(nd.ni_dvp); 1759 else 1760 vput(nd.ni_dvp); 1761 if (nd.ni_vp) 1762 vput(nd.ni_vp); 1763 vn_finished_write(mp, 0); 1764 return (error); 1765 } 1766 1767 /* 1768 * nfs remove service 1769 */ 1770 int 1771 nfsrv_remove(nfsd, slp, procp, mrq) 1772 struct nfsrv_descript *nfsd; 1773 struct nfssvc_sock *slp; 1774 struct proc *procp; 1775 struct mbuf **mrq; 1776 { 1777 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 1778 struct mbuf *nam = nfsd->nd_nam; 1779 caddr_t dpos = nfsd->nd_dpos; 1780 struct ucred *cred = &nfsd->nd_cr; 1781 struct nameidata nd; 1782 u_int32_t *tl; 1783 int32_t t1; 1784 caddr_t bpos; 1785 int error = 0, cache, len, dirfor_ret = 1, diraft_ret = 1; 1786 int v3 = (nfsd->nd_flag & ND_NFSV3); 1787 char *cp2; 1788 struct mbuf *mb, *mreq; 1789 struct vnode *vp, *dirp; 1790 struct vattr dirfor, diraft; 1791 nfsfh_t nfh; 1792 fhandle_t *fhp; 1793 u_quad_t frev; 1794 struct mount *mp = NULL; 1795 1796 #ifndef nolint 1797 vp = (struct vnode *)0; 1798 #endif 1799 fhp = &nfh.fh_generic; 1800 nfsm_srvmtofh(fhp); 1801 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 1802 return (ESTALE); 1803 vn_start_write(NULL, &mp, V_WAIT); 1804 nfsm_srvnamesiz(len); 1805 nd.ni_cnd.cn_cred = cred; 1806 nd.ni_cnd.cn_nameiop = DELETE; 1807 nd.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF; 1808 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 1809 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 1810 if (dirp) { 1811 if (v3) 1812 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, 1813 procp); 1814 else 1815 vrele(dirp); 1816 } 1817 if (!error) { 1818 vp = nd.ni_vp; 1819 if (vp->v_type == VDIR && 1820 (error = suser(cred, (u_short *)0)) != 0) 1821 goto out; 1822 /* 1823 * The root of a mounted filesystem cannot be deleted. 1824 */ 1825 if (vp->v_flag & VROOT) { 1826 error = EBUSY; 1827 goto out; 1828 } 1829 out: 1830 if (!error) { 1831 nqsrv_getl(nd.ni_dvp, ND_WRITE); 1832 nqsrv_getl(vp, ND_WRITE); 1833 error = VOP_REMOVE(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd); 1834 } else { 1835 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 1836 if (nd.ni_dvp == vp) 1837 vrele(nd.ni_dvp); 1838 else 1839 vput(nd.ni_dvp); 1840 vput(vp); 1841 } 1842 } 1843 if (dirp && v3) { 1844 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 1845 vrele(dirp); 1846 } 1847 nfsm_reply(NFSX_WCCDATA(v3)); 1848 if (v3) { 1849 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 1850 vn_finished_write(mp, 0); 1851 return (0); 1852 } 1853 vn_finished_write(mp, 0); 1854 nfsm_srvdone; 1855 } 1856 1857 /* 1858 * nfs rename service 1859 */ 1860 int 1861 nfsrv_rename(nfsd, slp, procp, mrq) 1862 struct nfsrv_descript *nfsd; 1863 struct nfssvc_sock *slp; 1864 struct proc *procp; 1865 struct mbuf **mrq; 1866 { 1867 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 1868 struct mbuf *nam = nfsd->nd_nam; 1869 caddr_t dpos = nfsd->nd_dpos; 1870 struct ucred *cred = &nfsd->nd_cr; 1871 u_int32_t *tl; 1872 int32_t t1; 1873 caddr_t bpos; 1874 int error = 0, cache, fdirfor_ret = 1, fdiraft_ret = 1; 1875 uint32_t len, len2; 1876 int tdirfor_ret = 1, tdiraft_ret = 1; 1877 int v3 = (nfsd->nd_flag & ND_NFSV3); 1878 char *cp2; 1879 struct mbuf *mb, *mreq; 1880 struct nameidata fromnd, tond; 1881 struct vnode *fvp, *tvp, *tdvp, *fdirp = (struct vnode *)0; 1882 struct vnode *tdirp = (struct vnode *)0; 1883 struct vattr fdirfor, fdiraft, tdirfor, tdiraft; 1884 nfsfh_t fnfh, tnfh; 1885 fhandle_t *ffhp, *tfhp; 1886 u_quad_t frev; 1887 uid_t saved_uid; 1888 struct mount *mp = NULL; 1889 1890 #ifndef nolint 1891 fvp = (struct vnode *)0; 1892 #endif 1893 ffhp = &fnfh.fh_generic; 1894 tfhp = &tnfh.fh_generic; 1895 fromnd.ni_cnd.cn_nameiop = 0; 1896 tond.ni_cnd.cn_nameiop = 0; 1897 nfsm_srvmtofh(ffhp); 1898 if ((mp = vfs_getvfs(&ffhp->fh_fsid)) == NULL) 1899 return (ESTALE); 1900 vn_start_write(NULL, &mp, V_WAIT); 1901 nfsm_srvnamesiz(len); 1902 /* 1903 * Remember our original uid so that we can reset cr_uid before 1904 * the second nfs_namei() call, in case it is remapped. 1905 */ 1906 saved_uid = cred->cr_uid; 1907 fromnd.ni_cnd.cn_cred = cred; 1908 fromnd.ni_cnd.cn_nameiop = DELETE; 1909 fromnd.ni_cnd.cn_flags = WANTPARENT | SAVESTART; 1910 error = nfs_namei(&fromnd, ffhp, len, slp, nam, &md, 1911 &dpos, &fdirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 1912 if (fdirp) { 1913 if (v3) 1914 fdirfor_ret = VOP_GETATTR(fdirp, &fdirfor, cred, 1915 procp); 1916 else { 1917 vrele(fdirp); 1918 fdirp = (struct vnode *)0; 1919 } 1920 } 1921 if (error) { 1922 nfsm_reply(2 * NFSX_WCCDATA(v3)); 1923 nfsm_srvwcc_data(fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft); 1924 nfsm_srvwcc_data(tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft); 1925 if (fdirp) 1926 vrele(fdirp); 1927 vn_finished_write(mp, 0); 1928 return (0); 1929 } 1930 fvp = fromnd.ni_vp; 1931 nfsm_srvmtofh(tfhp); 1932 if (v3) { 1933 nfsm_dissect(tl, uint32_t *, NFSX_UNSIGNED); 1934 len2 = fxdr_unsigned(uint32_t, *tl); 1935 /* len2 will be checked by nfs_namei */ 1936 } 1937 else { 1938 /* NFSv2 */ 1939 nfsm_strsiz(len2, NFS_MAXNAMLEN); 1940 } 1941 cred->cr_uid = saved_uid; 1942 tond.ni_cnd.cn_cred = cred; 1943 tond.ni_cnd.cn_nameiop = RENAME; 1944 tond.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF | NOCACHE | SAVESTART; 1945 error = nfs_namei(&tond, tfhp, len2, slp, nam, &md, 1946 &dpos, &tdirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 1947 if (tdirp) { 1948 if (v3) 1949 tdirfor_ret = VOP_GETATTR(tdirp, &tdirfor, cred, 1950 procp); 1951 else { 1952 vrele(tdirp); 1953 tdirp = (struct vnode *)0; 1954 } 1955 } 1956 if (error) { 1957 VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd); 1958 vrele(fromnd.ni_dvp); 1959 vrele(fvp); 1960 goto out1; 1961 } 1962 tdvp = tond.ni_dvp; 1963 tvp = tond.ni_vp; 1964 if (tvp != NULL) { 1965 if (fvp->v_type == VDIR && tvp->v_type != VDIR) { 1966 if (v3) 1967 error = EEXIST; 1968 else 1969 error = EISDIR; 1970 goto out; 1971 } else if (fvp->v_type != VDIR && tvp->v_type == VDIR) { 1972 if (v3) 1973 error = EEXIST; 1974 else 1975 error = ENOTDIR; 1976 goto out; 1977 } 1978 if (tvp->v_type == VDIR && tvp->v_mountedhere) { 1979 if (v3) 1980 error = EXDEV; 1981 else 1982 error = ENOTEMPTY; 1983 goto out; 1984 } 1985 } 1986 if (fvp->v_type == VDIR && fvp->v_mountedhere) { 1987 if (v3) 1988 error = EXDEV; 1989 else 1990 error = ENOTEMPTY; 1991 goto out; 1992 } 1993 if (fvp->v_mount != tdvp->v_mount) { 1994 if (v3) 1995 error = EXDEV; 1996 else 1997 error = ENOTEMPTY; 1998 goto out; 1999 } 2000 if (fvp == tdvp) { 2001 if (v3) 2002 error = EINVAL; 2003 else 2004 error = ENOTEMPTY; 2005 } 2006 /* 2007 * If source is the same as the destination (that is the 2008 * same vnode with the same name in the same directory), 2009 * then there is nothing to do. 2010 */ 2011 if (fvp == tvp && fromnd.ni_dvp == tdvp && 2012 fromnd.ni_cnd.cn_namelen == tond.ni_cnd.cn_namelen && 2013 !memcmp(fromnd.ni_cnd.cn_nameptr, tond.ni_cnd.cn_nameptr, 2014 fromnd.ni_cnd.cn_namelen)) 2015 error = -1; 2016 out: 2017 if (!error) { 2018 nqsrv_getl(fromnd.ni_dvp, ND_WRITE); 2019 nqsrv_getl(tdvp, ND_WRITE); 2020 if (tvp) { 2021 nqsrv_getl(tvp, ND_WRITE); 2022 } 2023 error = VOP_RENAME(fromnd.ni_dvp, fromnd.ni_vp, &fromnd.ni_cnd, 2024 tond.ni_dvp, tond.ni_vp, &tond.ni_cnd); 2025 } else { 2026 VOP_ABORTOP(tond.ni_dvp, &tond.ni_cnd); 2027 if (tdvp == tvp) 2028 vrele(tdvp); 2029 else 2030 vput(tdvp); 2031 if (tvp) 2032 vput(tvp); 2033 VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd); 2034 vrele(fromnd.ni_dvp); 2035 vrele(fvp); 2036 if (error == -1) 2037 error = 0; 2038 } 2039 vrele(tond.ni_startdir); 2040 PNBUF_PUT(tond.ni_cnd.cn_pnbuf); 2041 out1: 2042 if (fdirp) { 2043 fdiraft_ret = VOP_GETATTR(fdirp, &fdiraft, cred, procp); 2044 vrele(fdirp); 2045 } 2046 if (tdirp) { 2047 tdiraft_ret = VOP_GETATTR(tdirp, &tdiraft, cred, procp); 2048 vrele(tdirp); 2049 } 2050 vrele(fromnd.ni_startdir); 2051 PNBUF_PUT(fromnd.ni_cnd.cn_pnbuf); 2052 nfsm_reply(2 * NFSX_WCCDATA(v3)); 2053 if (v3) { 2054 nfsm_srvwcc_data(fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft); 2055 nfsm_srvwcc_data(tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft); 2056 } 2057 vn_finished_write(mp, 0); 2058 return (0); 2059 2060 nfsmout: 2061 if (fdirp) 2062 vrele(fdirp); 2063 if (tdirp) 2064 vrele(tdirp); 2065 if (tond.ni_cnd.cn_nameiop) { 2066 vrele(tond.ni_startdir); 2067 PNBUF_PUT(tond.ni_cnd.cn_pnbuf); 2068 } 2069 if (fromnd.ni_cnd.cn_nameiop) { 2070 vrele(fromnd.ni_startdir); 2071 PNBUF_PUT(fromnd.ni_cnd.cn_pnbuf); 2072 VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd); 2073 vrele(fromnd.ni_dvp); 2074 vrele(fvp); 2075 } 2076 return (error); 2077 } 2078 2079 /* 2080 * nfs link service 2081 */ 2082 int 2083 nfsrv_link(nfsd, slp, procp, mrq) 2084 struct nfsrv_descript *nfsd; 2085 struct nfssvc_sock *slp; 2086 struct proc *procp; 2087 struct mbuf **mrq; 2088 { 2089 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 2090 struct mbuf *nam = nfsd->nd_nam; 2091 caddr_t dpos = nfsd->nd_dpos; 2092 struct ucred *cred = &nfsd->nd_cr; 2093 struct nameidata nd; 2094 u_int32_t *tl; 2095 int32_t t1; 2096 caddr_t bpos; 2097 int error = 0, rdonly, cache, len, dirfor_ret = 1, diraft_ret = 1; 2098 int getret = 1, v3 = (nfsd->nd_flag & ND_NFSV3); 2099 char *cp2; 2100 struct mbuf *mb, *mreq; 2101 struct vnode *vp, *xp, *dirp = (struct vnode *)0; 2102 struct vattr dirfor, diraft, at; 2103 nfsfh_t nfh, dnfh; 2104 fhandle_t *fhp, *dfhp; 2105 u_quad_t frev; 2106 struct mount *mp = NULL; 2107 2108 fhp = &nfh.fh_generic; 2109 dfhp = &dnfh.fh_generic; 2110 nfsm_srvmtofh(fhp); 2111 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 2112 return (ESTALE); 2113 vn_start_write(NULL, &mp, V_WAIT); 2114 nfsm_srvmtofh(dfhp); 2115 nfsm_srvnamesiz(len); 2116 error = nfsrv_fhtovp(fhp, FALSE, &vp, cred, slp, nam, 2117 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2118 if (error) { 2119 nfsm_reply(NFSX_POSTOPATTR(v3) + NFSX_WCCDATA(v3)); 2120 nfsm_srvpostop_attr(getret, &at); 2121 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2122 vn_finished_write(mp, 0); 2123 return (0); 2124 } 2125 if (vp->v_type == VDIR && (error = suser(cred, (u_short *)0)) != 0) 2126 goto out1; 2127 nd.ni_cnd.cn_cred = cred; 2128 nd.ni_cnd.cn_nameiop = CREATE; 2129 nd.ni_cnd.cn_flags = LOCKPARENT; 2130 error = nfs_namei(&nd, dfhp, len, slp, nam, &md, &dpos, 2131 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2132 if (dirp) { 2133 if (v3) 2134 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, 2135 procp); 2136 else { 2137 vrele(dirp); 2138 dirp = (struct vnode *)0; 2139 } 2140 } 2141 if (error) 2142 goto out1; 2143 xp = nd.ni_vp; 2144 if (xp != NULL) { 2145 error = EEXIST; 2146 goto out; 2147 } 2148 xp = nd.ni_dvp; 2149 if (vp->v_mount != xp->v_mount) 2150 error = EXDEV; 2151 out: 2152 if (!error) { 2153 nqsrv_getl(vp, ND_WRITE); 2154 nqsrv_getl(xp, ND_WRITE); 2155 error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd); 2156 } else { 2157 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 2158 if (nd.ni_dvp == nd.ni_vp) 2159 vrele(nd.ni_dvp); 2160 else 2161 vput(nd.ni_dvp); 2162 if (nd.ni_vp) 2163 vrele(nd.ni_vp); 2164 } 2165 out1: 2166 if (v3) 2167 getret = VOP_GETATTR(vp, &at, cred, procp); 2168 if (dirp) { 2169 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 2170 vrele(dirp); 2171 } 2172 vrele(vp); 2173 nfsm_reply(NFSX_POSTOPATTR(v3) + NFSX_WCCDATA(v3)); 2174 if (v3) { 2175 nfsm_srvpostop_attr(getret, &at); 2176 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2177 vn_finished_write(mp, 0); 2178 return (0); 2179 } 2180 vn_finished_write(mp, 0); 2181 nfsm_srvdone; 2182 } 2183 2184 /* 2185 * nfs symbolic link service 2186 */ 2187 int 2188 nfsrv_symlink(nfsd, slp, procp, mrq) 2189 struct nfsrv_descript *nfsd; 2190 struct nfssvc_sock *slp; 2191 struct proc *procp; 2192 struct mbuf **mrq; 2193 { 2194 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 2195 struct mbuf *nam = nfsd->nd_nam; 2196 caddr_t dpos = nfsd->nd_dpos; 2197 struct ucred *cred = &nfsd->nd_cr; 2198 struct vattr va, dirfor, diraft; 2199 struct nameidata nd; 2200 u_int32_t *tl; 2201 int32_t t1; 2202 struct nfsv2_sattr *sp; 2203 char *bpos, *pathcp = NULL, *cp2; 2204 struct uio io; 2205 struct iovec iv; 2206 int error = 0, cache, dirfor_ret = 1, diraft_ret = 1; 2207 uint32_t len, len2; 2208 int v3 = (nfsd->nd_flag & ND_NFSV3); 2209 struct mbuf *mb, *mreq; 2210 struct vnode *dirp = (struct vnode *)0; 2211 nfsfh_t nfh; 2212 fhandle_t *fhp; 2213 u_quad_t frev; 2214 struct mount *mp = NULL; 2215 2216 nd.ni_cnd.cn_nameiop = 0; 2217 fhp = &nfh.fh_generic; 2218 nfsm_srvmtofh(fhp); 2219 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 2220 return (ESTALE); 2221 vn_start_write(NULL, &mp, V_WAIT); 2222 nfsm_srvnamesiz(len); 2223 nd.ni_cnd.cn_cred = cred; 2224 nd.ni_cnd.cn_nameiop = CREATE; 2225 nd.ni_cnd.cn_flags = LOCKPARENT; 2226 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 2227 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2228 if (dirp) { 2229 if (v3) 2230 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, 2231 procp); 2232 else { 2233 vrele(dirp); 2234 dirp = (struct vnode *)0; 2235 } 2236 } 2237 if (error) 2238 goto out; 2239 VATTR_NULL(&va); 2240 if (v3) { 2241 nfsm_srvsattr(&va); 2242 nfsm_dissect(tl, uint32_t *, NFSX_UNSIGNED); 2243 len2 = fxdr_unsigned(uint32_t, *tl); 2244 if (len2 > PATH_MAX) { 2245 /* XXX should check _PC_NO_TRUNC */ 2246 error = ENAMETOOLONG; 2247 goto abortop; 2248 } 2249 } 2250 else { 2251 /* NFSv2 */ 2252 nfsm_strsiz(len2, NFS_MAXPATHLEN); 2253 } 2254 pathcp = malloc(len2 + 1, M_TEMP, M_WAITOK); 2255 iv.iov_base = pathcp; 2256 iv.iov_len = len2; 2257 io.uio_resid = len2; 2258 io.uio_offset = 0; 2259 io.uio_iov = &iv; 2260 io.uio_iovcnt = 1; 2261 io.uio_segflg = UIO_SYSSPACE; 2262 io.uio_rw = UIO_READ; 2263 io.uio_procp = (struct proc *)0; 2264 nfsm_mtouio(&io, len2); 2265 if (!v3) { 2266 nfsm_dissect(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 2267 va.va_mode = fxdr_unsigned(u_int16_t, sp->sa_mode); 2268 } 2269 *(pathcp + len2) = '\0'; 2270 if (nd.ni_vp) { 2271 error = EEXIST; 2272 abortop: 2273 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 2274 if (nd.ni_dvp == nd.ni_vp) 2275 vrele(nd.ni_dvp); 2276 else 2277 vput(nd.ni_dvp); 2278 if (nd.ni_vp) 2279 vrele(nd.ni_vp); 2280 goto out; 2281 } 2282 nqsrv_getl(nd.ni_dvp, ND_WRITE); 2283 error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &va, pathcp); 2284 if (!error) { 2285 if (v3) { 2286 memset((caddr_t)fhp, 0, sizeof(nfh)); 2287 fhp->fh_fsid = nd.ni_vp->v_mount->mnt_stat.f_fsid; 2288 error = VFS_VPTOFH(nd.ni_vp, &fhp->fh_fid); 2289 if (!error) 2290 error = VOP_GETATTR(nd.ni_vp, &va, cred, 2291 procp); 2292 vput(nd.ni_vp); 2293 } else { 2294 vput(nd.ni_vp); 2295 } 2296 } 2297 out: 2298 if (pathcp) 2299 free(pathcp, M_TEMP); 2300 if (dirp) { 2301 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 2302 vrele(dirp); 2303 } 2304 nfsm_reply(NFSX_SRVFH(v3) + NFSX_POSTOPATTR(v3) + NFSX_WCCDATA(v3)); 2305 if (v3) { 2306 if (!error) { 2307 nfsm_srvpostop_fh(fhp); 2308 nfsm_srvpostop_attr(0, &va); 2309 } 2310 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2311 } 2312 vn_finished_write(mp, 0); 2313 return (0); 2314 nfsmout: 2315 if (dirp) 2316 vrele(dirp); 2317 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 2318 if (nd.ni_dvp == nd.ni_vp) 2319 vrele(nd.ni_dvp); 2320 else 2321 vput(nd.ni_dvp); 2322 if (nd.ni_vp) 2323 vrele(nd.ni_vp); 2324 if (pathcp) 2325 free(pathcp, M_TEMP); 2326 vn_finished_write(mp, 0); 2327 return (error); 2328 } 2329 2330 /* 2331 * nfs mkdir service 2332 */ 2333 int 2334 nfsrv_mkdir(nfsd, slp, procp, mrq) 2335 struct nfsrv_descript *nfsd; 2336 struct nfssvc_sock *slp; 2337 struct proc *procp; 2338 struct mbuf **mrq; 2339 { 2340 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 2341 struct mbuf *nam = nfsd->nd_nam; 2342 caddr_t dpos = nfsd->nd_dpos; 2343 struct ucred *cred = &nfsd->nd_cr; 2344 struct vattr va, dirfor, diraft; 2345 struct nfs_fattr *fp; 2346 struct nameidata nd; 2347 caddr_t cp; 2348 u_int32_t *tl; 2349 int32_t t1; 2350 caddr_t bpos; 2351 int error = 0, cache, len, dirfor_ret = 1, diraft_ret = 1; 2352 int v3 = (nfsd->nd_flag & ND_NFSV3); 2353 char *cp2; 2354 struct mbuf *mb, *mreq; 2355 struct vnode *vp, *dirp = (struct vnode *)0; 2356 nfsfh_t nfh; 2357 fhandle_t *fhp; 2358 u_quad_t frev; 2359 struct mount *mp = NULL; 2360 2361 fhp = &nfh.fh_generic; 2362 nfsm_srvmtofh(fhp); 2363 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 2364 return (ESTALE); 2365 vn_start_write(NULL, &mp, V_WAIT); 2366 nfsm_srvnamesiz(len); 2367 nd.ni_cnd.cn_cred = cred; 2368 nd.ni_cnd.cn_nameiop = CREATE; 2369 nd.ni_cnd.cn_flags = LOCKPARENT; 2370 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 2371 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2372 if (dirp) { 2373 if (v3) 2374 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, 2375 procp); 2376 else { 2377 vrele(dirp); 2378 dirp = (struct vnode *)0; 2379 } 2380 } 2381 if (error) { 2382 nfsm_reply(NFSX_WCCDATA(v3)); 2383 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2384 if (dirp) 2385 vrele(dirp); 2386 vn_finished_write(mp, 0); 2387 return (0); 2388 } 2389 VATTR_NULL(&va); 2390 if (v3) { 2391 nfsm_srvsattr(&va); 2392 } else { 2393 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2394 va.va_mode = nfstov_mode(*tl++); 2395 } 2396 va.va_type = VDIR; 2397 vp = nd.ni_vp; 2398 if (vp != NULL) { 2399 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 2400 if (nd.ni_dvp == vp) 2401 vrele(nd.ni_dvp); 2402 else 2403 vput(nd.ni_dvp); 2404 vrele(vp); 2405 error = EEXIST; 2406 goto out; 2407 } 2408 nqsrv_getl(nd.ni_dvp, ND_WRITE); 2409 error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &va); 2410 if (!error) { 2411 vp = nd.ni_vp; 2412 memset((caddr_t)fhp, 0, sizeof(nfh)); 2413 fhp->fh_fsid = vp->v_mount->mnt_stat.f_fsid; 2414 error = VFS_VPTOFH(vp, &fhp->fh_fid); 2415 if (!error) 2416 error = VOP_GETATTR(vp, &va, cred, procp); 2417 vput(vp); 2418 } 2419 out: 2420 if (dirp) { 2421 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 2422 vrele(dirp); 2423 } 2424 nfsm_reply(NFSX_SRVFH(v3) + NFSX_POSTOPATTR(v3) + NFSX_WCCDATA(v3)); 2425 if (v3) { 2426 if (!error) { 2427 nfsm_srvpostop_fh(fhp); 2428 nfsm_srvpostop_attr(0, &va); 2429 } 2430 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2431 } else { 2432 nfsm_srvfhtom(fhp, v3); 2433 nfsm_build(fp, struct nfs_fattr *, NFSX_V2FATTR); 2434 nfsm_srvfillattr(&va, fp); 2435 } 2436 vn_finished_write(mp, 0); 2437 return (0); 2438 nfsmout: 2439 if (dirp) 2440 vrele(dirp); 2441 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 2442 if (nd.ni_dvp == nd.ni_vp) 2443 vrele(nd.ni_dvp); 2444 else 2445 vput(nd.ni_dvp); 2446 if (nd.ni_vp) 2447 vrele(nd.ni_vp); 2448 vn_finished_write(mp, 0); 2449 return (error); 2450 } 2451 2452 /* 2453 * nfs rmdir service 2454 */ 2455 int 2456 nfsrv_rmdir(nfsd, slp, procp, mrq) 2457 struct nfsrv_descript *nfsd; 2458 struct nfssvc_sock *slp; 2459 struct proc *procp; 2460 struct mbuf **mrq; 2461 { 2462 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 2463 struct mbuf *nam = nfsd->nd_nam; 2464 caddr_t dpos = nfsd->nd_dpos; 2465 struct ucred *cred = &nfsd->nd_cr; 2466 u_int32_t *tl; 2467 int32_t t1; 2468 caddr_t bpos; 2469 int error = 0, cache, len, dirfor_ret = 1, diraft_ret = 1; 2470 int v3 = (nfsd->nd_flag & ND_NFSV3); 2471 char *cp2; 2472 struct mbuf *mb, *mreq; 2473 struct vnode *vp, *dirp = (struct vnode *)0; 2474 struct vattr dirfor, diraft; 2475 nfsfh_t nfh; 2476 fhandle_t *fhp; 2477 struct nameidata nd; 2478 u_quad_t frev; 2479 struct mount *mp = NULL; 2480 2481 fhp = &nfh.fh_generic; 2482 nfsm_srvmtofh(fhp); 2483 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 2484 return (ESTALE); 2485 vn_start_write(NULL, &mp, V_WAIT); 2486 nfsm_srvnamesiz(len); 2487 nd.ni_cnd.cn_cred = cred; 2488 nd.ni_cnd.cn_nameiop = DELETE; 2489 nd.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF; 2490 error = nfs_namei(&nd, fhp, len, slp, nam, &md, &dpos, 2491 &dirp, procp, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2492 if (dirp) { 2493 if (v3) 2494 dirfor_ret = VOP_GETATTR(dirp, &dirfor, cred, 2495 procp); 2496 else { 2497 vrele(dirp); 2498 dirp = (struct vnode *)0; 2499 } 2500 } 2501 if (error) { 2502 nfsm_reply(NFSX_WCCDATA(v3)); 2503 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2504 if (dirp) 2505 vrele(dirp); 2506 vn_finished_write(mp, 0); 2507 return (0); 2508 } 2509 vp = nd.ni_vp; 2510 if (vp->v_type != VDIR) { 2511 error = ENOTDIR; 2512 goto out; 2513 } 2514 /* 2515 * No rmdir "." please. 2516 */ 2517 if (nd.ni_dvp == vp) { 2518 error = EINVAL; 2519 goto out; 2520 } 2521 /* 2522 * The root of a mounted filesystem cannot be deleted. 2523 */ 2524 if (vp->v_flag & VROOT) 2525 error = EBUSY; 2526 out: 2527 if (!error) { 2528 nqsrv_getl(nd.ni_dvp, ND_WRITE); 2529 nqsrv_getl(vp, ND_WRITE); 2530 error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd); 2531 } else { 2532 VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd); 2533 if (nd.ni_dvp == nd.ni_vp) 2534 vrele(nd.ni_dvp); 2535 else 2536 vput(nd.ni_dvp); 2537 vput(vp); 2538 } 2539 if (dirp) { 2540 diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp); 2541 vrele(dirp); 2542 } 2543 nfsm_reply(NFSX_WCCDATA(v3)); 2544 if (v3) { 2545 nfsm_srvwcc_data(dirfor_ret, &dirfor, diraft_ret, &diraft); 2546 vn_finished_write(mp, 0); 2547 return (0); 2548 } 2549 vn_finished_write(mp, 0); 2550 nfsm_srvdone; 2551 } 2552 2553 /* 2554 * nfs readdir service 2555 * - mallocs what it thinks is enough to read 2556 * count rounded up to a multiple of NFS_DIRBLKSIZ <= NFS_MAXREADDIR 2557 * - calls VOP_READDIR() 2558 * - loops around building the reply 2559 * if the output generated exceeds count break out of loop 2560 * The nfsm_clget macro is used here so that the reply will be packed 2561 * tightly in mbuf clusters. 2562 * - it only knows that it has encountered eof when the VOP_READDIR() 2563 * reads nothing 2564 * - as such one readdir rpc will return eof false although you are there 2565 * and then the next will return eof 2566 * - it trims out records with d_fileno == 0 2567 * this doesn't matter for Unix clients, but they might confuse clients 2568 * for other os'. 2569 * - it trims out records with d_type == DT_WHT 2570 * these cannot be seen through NFS (unless we extend the protocol) 2571 * NB: It is tempting to set eof to true if the VOP_READDIR() reads less 2572 * than requested, but this may not apply to all filesystems. For 2573 * example, client NFS does not { although it is never remote mounted 2574 * anyhow } 2575 * The alternate call nfsrv_readdirplus() does lookups as well. 2576 * PS: The NFS protocol spec. does not clarify what the "count" byte 2577 * argument is a count of.. just name strings and file id's or the 2578 * entire reply rpc or ... 2579 * I tried just file name and id sizes and it confused the Sun client, 2580 * so I am using the full rpc size now. The "paranoia.." comment refers 2581 * to including the status longwords that are not a part of the dir. 2582 * "entry" structures, but are in the rpc. 2583 */ 2584 struct flrep { 2585 nfsuint64 fl_off; 2586 u_int32_t fl_postopok; 2587 u_int32_t fl_fattr[NFSX_V3FATTR / sizeof (u_int32_t)]; 2588 u_int32_t fl_fhok; 2589 u_int32_t fl_fhsize; 2590 u_int32_t fl_nfh[NFSX_V3FH / sizeof (u_int32_t)]; 2591 }; 2592 2593 int 2594 nfsrv_readdir(nfsd, slp, procp, mrq) 2595 struct nfsrv_descript *nfsd; 2596 struct nfssvc_sock *slp; 2597 struct proc *procp; 2598 struct mbuf **mrq; 2599 { 2600 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 2601 struct mbuf *nam = nfsd->nd_nam; 2602 caddr_t dpos = nfsd->nd_dpos; 2603 struct ucred *cred = &nfsd->nd_cr; 2604 char *bp, *be; 2605 struct mbuf *mp; 2606 struct dirent *dp; 2607 caddr_t cp; 2608 u_int32_t *tl; 2609 int32_t t1; 2610 caddr_t bpos; 2611 struct mbuf *mb, *mreq, *mp2; 2612 char *cpos, *cend, *cp2, *rbuf; 2613 struct vnode *vp; 2614 struct vattr at; 2615 nfsfh_t nfh; 2616 fhandle_t *fhp; 2617 struct uio io; 2618 struct iovec iv; 2619 int len, nlen, rem, xfer, tsiz, i, error = 0, getret = 1; 2620 int siz, cnt, fullsiz, eofflag, rdonly, cache, ncookies; 2621 int v3 = (nfsd->nd_flag & ND_NFSV3); 2622 u_quad_t frev, off, toff, verf; 2623 off_t *cookies = NULL, *cookiep; 2624 nfsuint64 jar; 2625 2626 fhp = &nfh.fh_generic; 2627 nfsm_srvmtofh(fhp); 2628 if (v3) { 2629 nfsm_dissect(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2630 toff = fxdr_hyper(tl); 2631 tl += 2; 2632 verf = fxdr_hyper(tl); 2633 tl += 2; 2634 } else { 2635 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2636 toff = fxdr_unsigned(u_quad_t, *tl++); 2637 } 2638 off = toff; 2639 cnt = fxdr_unsigned(int, *tl); 2640 siz = ((cnt + DIRBLKSIZ - 1) & ~(DIRBLKSIZ - 1)); 2641 xfer = NFS_SRVMAXDATA(nfsd); 2642 if (siz > xfer) 2643 siz = xfer; 2644 fullsiz = siz; 2645 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 2646 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2647 if (!error && vp->v_type != VDIR) { 2648 error = ENOTDIR; 2649 vput(vp); 2650 } 2651 if (error) { 2652 nfsm_reply(NFSX_UNSIGNED); 2653 nfsm_srvpostop_attr(getret, &at); 2654 return (0); 2655 } 2656 nqsrv_getl(vp, ND_READ); 2657 if (v3) { 2658 error = getret = VOP_GETATTR(vp, &at, cred, procp); 2659 #ifdef NFS3_STRICTVERF 2660 /* 2661 * XXX This check is too strict for Solaris 2.5 clients. 2662 */ 2663 if (!error && toff && verf != at.va_filerev) 2664 error = NFSERR_BAD_COOKIE; 2665 #endif 2666 } 2667 if (!error) 2668 error = nfsrv_access(vp, VEXEC, cred, rdonly, procp, 0); 2669 if (error) { 2670 vput(vp); 2671 nfsm_reply(NFSX_POSTOPATTR(v3)); 2672 nfsm_srvpostop_attr(getret, &at); 2673 return (0); 2674 } 2675 VOP_UNLOCK(vp, 0); 2676 rbuf = malloc(siz, M_TEMP, M_WAITOK); 2677 again: 2678 iv.iov_base = rbuf; 2679 iv.iov_len = fullsiz; 2680 io.uio_iov = &iv; 2681 io.uio_iovcnt = 1; 2682 io.uio_offset = (off_t)off; 2683 io.uio_resid = fullsiz; 2684 io.uio_segflg = UIO_SYSSPACE; 2685 io.uio_rw = UIO_READ; 2686 io.uio_procp = (struct proc *)0; 2687 eofflag = 0; 2688 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 2689 2690 error = VOP_READDIR(vp, &io, cred, &eofflag, &cookies, &ncookies); 2691 2692 off = (off_t)io.uio_offset; 2693 if (!cookies && !error) 2694 error = NFSERR_PERM; 2695 if (v3) { 2696 getret = VOP_GETATTR(vp, &at, cred, procp); 2697 if (!error) 2698 error = getret; 2699 } 2700 2701 VOP_UNLOCK(vp, 0); 2702 if (error) { 2703 vrele(vp); 2704 free((caddr_t)rbuf, M_TEMP); 2705 if (cookies) 2706 free((caddr_t)cookies, M_TEMP); 2707 nfsm_reply(NFSX_POSTOPATTR(v3)); 2708 nfsm_srvpostop_attr(getret, &at); 2709 return (0); 2710 } 2711 if (io.uio_resid) { 2712 siz -= io.uio_resid; 2713 2714 /* 2715 * If nothing read, return eof 2716 * rpc reply 2717 */ 2718 if (siz == 0) { 2719 vrele(vp); 2720 nfsm_reply(NFSX_POSTOPATTR(v3) + NFSX_COOKIEVERF(v3) + 2721 2 * NFSX_UNSIGNED); 2722 if (v3) { 2723 nfsm_srvpostop_attr(getret, &at); 2724 nfsm_build(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 2725 txdr_hyper(at.va_filerev, tl); 2726 tl += 2; 2727 } else 2728 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2729 *tl++ = nfs_false; 2730 *tl = nfs_true; 2731 free((caddr_t)rbuf, M_TEMP); 2732 free((caddr_t)cookies, M_TEMP); 2733 return (0); 2734 } 2735 } 2736 2737 /* 2738 * Check for degenerate cases of nothing useful read. 2739 * If so go try again 2740 */ 2741 cpos = rbuf; 2742 cend = rbuf + siz; 2743 dp = (struct dirent *)cpos; 2744 cookiep = cookies; 2745 2746 while (cpos < cend && ncookies > 0 && 2747 (dp->d_fileno == 0 || dp->d_type == DT_WHT)) { 2748 cpos += dp->d_reclen; 2749 dp = (struct dirent *)cpos; 2750 cookiep++; 2751 ncookies--; 2752 } 2753 if (cpos >= cend || ncookies == 0) { 2754 toff = off; 2755 siz = fullsiz; 2756 goto again; 2757 } 2758 2759 len = 3 * NFSX_UNSIGNED; /* paranoia, probably can be 0 */ 2760 nfsm_reply(NFSX_POSTOPATTR(v3) + NFSX_COOKIEVERF(v3) + siz); 2761 if (v3) { 2762 nfsm_srvpostop_attr(getret, &at); 2763 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2764 txdr_hyper(at.va_filerev, tl); 2765 } 2766 mp = mp2 = mb; 2767 bp = bpos; 2768 be = bp + M_TRAILINGSPACE(mp); 2769 2770 /* Loop through the records and build reply */ 2771 while (cpos < cend && ncookies > 0) { 2772 if (dp->d_fileno != 0 && dp->d_type != DT_WHT) { 2773 nlen = dp->d_namlen; 2774 rem = nfsm_rndup(nlen)-nlen; 2775 len += (4 * NFSX_UNSIGNED + nlen + rem); 2776 if (v3) 2777 len += 2 * NFSX_UNSIGNED; 2778 if (len > cnt) { 2779 eofflag = 0; 2780 break; 2781 } 2782 /* 2783 * Build the directory record xdr from 2784 * the dirent entry. 2785 */ 2786 nfsm_clget; 2787 *tl = nfs_true; 2788 bp += NFSX_UNSIGNED; 2789 if (v3) { 2790 nfsm_clget; 2791 *tl = 0; 2792 bp += NFSX_UNSIGNED; 2793 } 2794 nfsm_clget; 2795 *tl = txdr_unsigned(dp->d_fileno); 2796 bp += NFSX_UNSIGNED; 2797 nfsm_clget; 2798 *tl = txdr_unsigned(nlen); 2799 bp += NFSX_UNSIGNED; 2800 2801 /* And loop around copying the name */ 2802 xfer = nlen; 2803 cp = dp->d_name; 2804 while (xfer > 0) { 2805 nfsm_clget; 2806 if ((bp+xfer) > be) 2807 tsiz = be-bp; 2808 else 2809 tsiz = xfer; 2810 memcpy(bp, cp, tsiz); 2811 bp += tsiz; 2812 xfer -= tsiz; 2813 if (xfer > 0) 2814 cp += tsiz; 2815 } 2816 /* And null pad to an int32_t boundary */ 2817 for (i = 0; i < rem; i++) 2818 *bp++ = '\0'; 2819 nfsm_clget; 2820 2821 /* Finish off the record */ 2822 txdr_hyper(*cookiep, &jar); 2823 if (v3) { 2824 *tl = jar.nfsuquad[0]; 2825 bp += NFSX_UNSIGNED; 2826 nfsm_clget; 2827 } 2828 *tl = jar.nfsuquad[1]; 2829 bp += NFSX_UNSIGNED; 2830 } 2831 cpos += dp->d_reclen; 2832 dp = (struct dirent *)cpos; 2833 cookiep++; 2834 ncookies--; 2835 } 2836 vrele(vp); 2837 nfsm_clget; 2838 *tl = nfs_false; 2839 bp += NFSX_UNSIGNED; 2840 nfsm_clget; 2841 if (eofflag) 2842 *tl = nfs_true; 2843 else 2844 *tl = nfs_false; 2845 bp += NFSX_UNSIGNED; 2846 if (mp != mb) { 2847 if (bp < be) 2848 mp->m_len = bp - mtod(mp, caddr_t); 2849 } else 2850 mp->m_len += bp - bpos; 2851 free((caddr_t)rbuf, M_TEMP); 2852 free((caddr_t)cookies, M_TEMP); 2853 nfsm_srvdone; 2854 } 2855 2856 int 2857 nfsrv_readdirplus(nfsd, slp, procp, mrq) 2858 struct nfsrv_descript *nfsd; 2859 struct nfssvc_sock *slp; 2860 struct proc *procp; 2861 struct mbuf **mrq; 2862 { 2863 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 2864 struct mbuf *nam = nfsd->nd_nam; 2865 caddr_t dpos = nfsd->nd_dpos; 2866 struct ucred *cred = &nfsd->nd_cr; 2867 char *bp, *be; 2868 struct mbuf *mp; 2869 struct dirent *dp; 2870 caddr_t cp; 2871 u_int32_t *tl; 2872 int32_t t1; 2873 caddr_t bpos; 2874 struct mbuf *mb, *mreq, *mp2; 2875 char *cpos, *cend, *cp2, *rbuf; 2876 struct vnode *vp, *nvp; 2877 struct flrep fl; 2878 nfsfh_t nfh; 2879 fhandle_t *fhp, *nfhp = (fhandle_t *)fl.fl_nfh; 2880 struct uio io; 2881 struct iovec iv; 2882 struct vattr va, at, *vap = &va; 2883 struct nfs_fattr *fp; 2884 int len, nlen, rem, xfer, tsiz, i, error = 0, getret = 1; 2885 int siz, cnt, fullsiz, eofflag, rdonly, cache, dirlen, ncookies; 2886 u_quad_t frev, off, toff, verf; 2887 off_t *cookies = NULL, *cookiep; 2888 2889 fhp = &nfh.fh_generic; 2890 nfsm_srvmtofh(fhp); 2891 nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 2892 toff = fxdr_hyper(tl); 2893 tl += 2; 2894 verf = fxdr_hyper(tl); 2895 tl += 2; 2896 siz = fxdr_unsigned(int, *tl++); 2897 cnt = fxdr_unsigned(int, *tl); 2898 off = toff; 2899 siz = ((siz + DIRBLKSIZ - 1) & ~(DIRBLKSIZ - 1)); 2900 xfer = NFS_SRVMAXDATA(nfsd); 2901 if (siz > xfer) 2902 siz = xfer; 2903 fullsiz = siz; 2904 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 2905 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 2906 if (!error && vp->v_type != VDIR) { 2907 error = ENOTDIR; 2908 vput(vp); 2909 } 2910 if (error) { 2911 nfsm_reply(NFSX_UNSIGNED); 2912 nfsm_srvpostop_attr(getret, &at); 2913 return (0); 2914 } 2915 error = getret = VOP_GETATTR(vp, &at, cred, procp); 2916 #ifdef NFS3_STRICTVERF 2917 /* 2918 * XXX This check is too strict for Solaris 2.5 clients. 2919 */ 2920 if (!error && toff && verf != at.va_filerev) 2921 error = NFSERR_BAD_COOKIE; 2922 #endif 2923 if (!error) { 2924 nqsrv_getl(vp, ND_READ); 2925 error = nfsrv_access(vp, VEXEC, cred, rdonly, procp, 0); 2926 } 2927 if (error) { 2928 vput(vp); 2929 nfsm_reply(NFSX_V3POSTOPATTR); 2930 nfsm_srvpostop_attr(getret, &at); 2931 return (0); 2932 } 2933 VOP_UNLOCK(vp, 0); 2934 2935 rbuf = malloc(siz, M_TEMP, M_WAITOK); 2936 again: 2937 iv.iov_base = rbuf; 2938 iv.iov_len = fullsiz; 2939 io.uio_iov = &iv; 2940 io.uio_iovcnt = 1; 2941 io.uio_offset = (off_t)off; 2942 io.uio_resid = fullsiz; 2943 io.uio_segflg = UIO_SYSSPACE; 2944 io.uio_rw = UIO_READ; 2945 io.uio_procp = (struct proc *)0; 2946 eofflag = 0; 2947 2948 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 2949 2950 error = VOP_READDIR(vp, &io, cred, &eofflag, &cookies, &ncookies); 2951 2952 off = (u_quad_t)io.uio_offset; 2953 getret = VOP_GETATTR(vp, &at, cred, procp); 2954 2955 VOP_UNLOCK(vp, 0); 2956 2957 /* 2958 * If the VGET operation doesn't work for this filesystem, 2959 * we can't support readdirplus. Returning NOTSUPP should 2960 * make clients fall back to plain readdir. 2961 * There's no need to check for VPTOFH as well, we wouldn't 2962 * even be here otherwise. 2963 */ 2964 if (!getret) { 2965 if ((getret = VFS_VGET(vp->v_mount, at.va_fileid, &nvp))) 2966 getret = (getret == EOPNOTSUPP) ? 2967 NFSERR_NOTSUPP : NFSERR_IO; 2968 else 2969 vput(nvp); 2970 } 2971 2972 if (!cookies && !error) 2973 error = NFSERR_PERM; 2974 if (!error) 2975 error = getret; 2976 if (error) { 2977 vrele(vp); 2978 if (cookies) 2979 free((caddr_t)cookies, M_TEMP); 2980 free((caddr_t)rbuf, M_TEMP); 2981 nfsm_reply(NFSX_V3POSTOPATTR); 2982 nfsm_srvpostop_attr(getret, &at); 2983 return (0); 2984 } 2985 if (io.uio_resid) { 2986 siz -= io.uio_resid; 2987 2988 /* 2989 * If nothing read, return eof 2990 * rpc reply 2991 */ 2992 if (siz == 0) { 2993 vrele(vp); 2994 nfsm_reply(NFSX_V3POSTOPATTR + NFSX_V3COOKIEVERF + 2995 2 * NFSX_UNSIGNED); 2996 nfsm_srvpostop_attr(getret, &at); 2997 nfsm_build(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 2998 txdr_hyper(at.va_filerev, tl); 2999 tl += 2; 3000 *tl++ = nfs_false; 3001 *tl = nfs_true; 3002 free((caddr_t)cookies, M_TEMP); 3003 free((caddr_t)rbuf, M_TEMP); 3004 return (0); 3005 } 3006 } 3007 3008 /* 3009 * Check for degenerate cases of nothing useful read. 3010 * If so go try again 3011 */ 3012 cpos = rbuf; 3013 cend = rbuf + siz; 3014 dp = (struct dirent *)cpos; 3015 cookiep = cookies; 3016 3017 while (cpos < cend && ncookies > 0 && 3018 (dp->d_fileno == 0 || dp->d_type == DT_WHT)) { 3019 cpos += dp->d_reclen; 3020 dp = (struct dirent *)cpos; 3021 cookiep++; 3022 ncookies--; 3023 } 3024 if (cpos >= cend || ncookies == 0) { 3025 toff = off; 3026 siz = fullsiz; 3027 goto again; 3028 } 3029 3030 dirlen = len = NFSX_V3POSTOPATTR + NFSX_V3COOKIEVERF + 2 * NFSX_UNSIGNED; 3031 nfsm_reply(cnt); 3032 nfsm_srvpostop_attr(getret, &at); 3033 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3034 txdr_hyper(at.va_filerev, tl); 3035 mp = mp2 = mb; 3036 bp = bpos; 3037 be = bp + M_TRAILINGSPACE(mp); 3038 3039 /* Loop through the records and build reply */ 3040 while (cpos < cend && ncookies > 0) { 3041 if (dp->d_fileno != 0 && dp->d_type != DT_WHT) { 3042 nlen = dp->d_namlen; 3043 rem = nfsm_rndup(nlen)-nlen; 3044 3045 /* 3046 * For readdir_and_lookup get the vnode using 3047 * the file number. 3048 */ 3049 if (VFS_VGET(vp->v_mount, dp->d_fileno, &nvp)) 3050 goto invalid; 3051 memset((caddr_t)nfhp, 0, NFSX_V3FH); 3052 nfhp->fh_fsid = 3053 nvp->v_mount->mnt_stat.f_fsid; 3054 if (VFS_VPTOFH(nvp, &nfhp->fh_fid)) { 3055 vput(nvp); 3056 goto invalid; 3057 } 3058 if (VOP_GETATTR(nvp, vap, cred, procp)) { 3059 vput(nvp); 3060 goto invalid; 3061 } 3062 vput(nvp); 3063 3064 /* 3065 * If either the dircount or maxcount will be 3066 * exceeded, get out now. Both of these lengths 3067 * are calculated conservatively, including all 3068 * XDR overheads. 3069 */ 3070 len += (8 * NFSX_UNSIGNED + nlen + rem + NFSX_V3FH + 3071 NFSX_V3POSTOPATTR); 3072 dirlen += (6 * NFSX_UNSIGNED + nlen + rem); 3073 if (len > cnt || dirlen > fullsiz) { 3074 eofflag = 0; 3075 break; 3076 } 3077 3078 /* 3079 * Build the directory record xdr from 3080 * the dirent entry. 3081 */ 3082 fp = (struct nfs_fattr *)&fl.fl_fattr; 3083 nfsm_srvfillattr(vap, fp); 3084 fl.fl_fhsize = txdr_unsigned(NFSX_V3FH); 3085 fl.fl_fhok = nfs_true; 3086 fl.fl_postopok = nfs_true; 3087 txdr_hyper(*cookiep, fl.fl_off.nfsuquad); 3088 3089 nfsm_clget; 3090 *tl = nfs_true; 3091 bp += NFSX_UNSIGNED; 3092 nfsm_clget; 3093 *tl = 0; 3094 bp += NFSX_UNSIGNED; 3095 nfsm_clget; 3096 *tl = txdr_unsigned(dp->d_fileno); 3097 bp += NFSX_UNSIGNED; 3098 nfsm_clget; 3099 *tl = txdr_unsigned(nlen); 3100 bp += NFSX_UNSIGNED; 3101 3102 /* And loop around copying the name */ 3103 xfer = nlen; 3104 cp = dp->d_name; 3105 while (xfer > 0) { 3106 nfsm_clget; 3107 if ((bp + xfer) > be) 3108 tsiz = be - bp; 3109 else 3110 tsiz = xfer; 3111 memcpy(bp, cp, tsiz); 3112 bp += tsiz; 3113 xfer -= tsiz; 3114 if (xfer > 0) 3115 cp += tsiz; 3116 } 3117 /* And null pad to an int32_t boundary */ 3118 for (i = 0; i < rem; i++) 3119 *bp++ = '\0'; 3120 3121 /* 3122 * Now copy the flrep structure out. 3123 */ 3124 xfer = sizeof (struct flrep); 3125 cp = (caddr_t)&fl; 3126 while (xfer > 0) { 3127 nfsm_clget; 3128 if ((bp + xfer) > be) 3129 tsiz = be - bp; 3130 else 3131 tsiz = xfer; 3132 memcpy(bp, cp, tsiz); 3133 bp += tsiz; 3134 xfer -= tsiz; 3135 if (xfer > 0) 3136 cp += tsiz; 3137 } 3138 } 3139 invalid: 3140 cpos += dp->d_reclen; 3141 dp = (struct dirent *)cpos; 3142 cookiep++; 3143 ncookies--; 3144 } 3145 vrele(vp); 3146 nfsm_clget; 3147 *tl = nfs_false; 3148 bp += NFSX_UNSIGNED; 3149 nfsm_clget; 3150 if (eofflag) 3151 *tl = nfs_true; 3152 else 3153 *tl = nfs_false; 3154 bp += NFSX_UNSIGNED; 3155 if (mp != mb) { 3156 if (bp < be) 3157 mp->m_len = bp - mtod(mp, caddr_t); 3158 } else 3159 mp->m_len += bp - bpos; 3160 free((caddr_t)cookies, M_TEMP); 3161 free((caddr_t)rbuf, M_TEMP); 3162 nfsm_srvdone; 3163 } 3164 3165 /* 3166 * nfs commit service 3167 */ 3168 int 3169 nfsrv_commit(nfsd, slp, procp, mrq) 3170 struct nfsrv_descript *nfsd; 3171 struct nfssvc_sock *slp; 3172 struct proc *procp; 3173 struct mbuf **mrq; 3174 { 3175 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 3176 struct mbuf *nam = nfsd->nd_nam; 3177 caddr_t dpos = nfsd->nd_dpos; 3178 struct ucred *cred = &nfsd->nd_cr; 3179 struct vattr bfor, aft; 3180 struct vnode *vp; 3181 nfsfh_t nfh; 3182 fhandle_t *fhp; 3183 u_int32_t *tl; 3184 int32_t t1; 3185 caddr_t bpos; 3186 int error = 0, rdonly, for_ret = 1, aft_ret = 1, cnt, cache; 3187 char *cp2; 3188 struct mbuf *mb, *mreq; 3189 u_quad_t frev, off, end; 3190 struct mount *mp = NULL; 3191 3192 #ifndef nolint 3193 cache = 0; 3194 #endif 3195 fhp = &nfh.fh_generic; 3196 nfsm_srvmtofh(fhp); 3197 if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) 3198 return (ESTALE); 3199 vn_start_write(NULL, &mp, V_WAIT); 3200 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3201 3202 off = fxdr_hyper(tl); 3203 tl += 2; 3204 cnt = fxdr_unsigned(int, *tl); 3205 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 3206 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 3207 if (error) { 3208 nfsm_reply(2 * NFSX_UNSIGNED); 3209 nfsm_srvwcc_data(for_ret, &bfor, aft_ret, &aft); 3210 vn_finished_write(mp, 0); 3211 return (0); 3212 } 3213 for_ret = VOP_GETATTR(vp, &bfor, cred, procp); 3214 end = (cnt > 0) ? off + cnt : vp->v_size; 3215 if (end < off || end > vp->v_size) 3216 end = vp->v_size; 3217 if (off < vp->v_size) 3218 error = VOP_FSYNC(vp, cred, FSYNC_WAIT, off, end, procp); 3219 /* else error == 0, from nfsrv_fhtovp() */ 3220 aft_ret = VOP_GETATTR(vp, &aft, cred, procp); 3221 vput(vp); 3222 nfsm_reply(NFSX_V3WCCDATA + NFSX_V3WRITEVERF); 3223 nfsm_srvwcc_data(for_ret, &bfor, aft_ret, &aft); 3224 if (!error) { 3225 nfsm_build(tl, u_int32_t *, NFSX_V3WRITEVERF); 3226 *tl++ = txdr_unsigned(boottime.tv_sec); 3227 *tl = txdr_unsigned(boottime.tv_usec); 3228 } else { 3229 vn_finished_write(mp, 0); 3230 return (0); 3231 } 3232 vn_finished_write(mp, 0); 3233 nfsm_srvdone; 3234 } 3235 3236 /* 3237 * nfs statfs service 3238 */ 3239 int 3240 nfsrv_statfs(nfsd, slp, procp, mrq) 3241 struct nfsrv_descript *nfsd; 3242 struct nfssvc_sock *slp; 3243 struct proc *procp; 3244 struct mbuf **mrq; 3245 { 3246 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 3247 struct mbuf *nam = nfsd->nd_nam; 3248 caddr_t dpos = nfsd->nd_dpos; 3249 struct ucred *cred = &nfsd->nd_cr; 3250 struct statfs *sf; 3251 struct nfs_statfs *sfp; 3252 u_int32_t *tl; 3253 int32_t t1; 3254 caddr_t bpos; 3255 int error = 0, rdonly, cache, getret = 1; 3256 int v3 = (nfsd->nd_flag & ND_NFSV3); 3257 char *cp2; 3258 struct mbuf *mb, *mreq; 3259 struct vnode *vp; 3260 struct vattr at; 3261 nfsfh_t nfh; 3262 fhandle_t *fhp; 3263 struct statfs statfs; 3264 u_quad_t frev, tval; 3265 3266 #ifndef nolint 3267 cache = 0; 3268 #endif 3269 fhp = &nfh.fh_generic; 3270 nfsm_srvmtofh(fhp); 3271 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 3272 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 3273 if (error) { 3274 nfsm_reply(NFSX_UNSIGNED); 3275 nfsm_srvpostop_attr(getret, &at); 3276 return (0); 3277 } 3278 sf = &statfs; 3279 error = VFS_STATFS(vp->v_mount, sf, procp); 3280 getret = VOP_GETATTR(vp, &at, cred, procp); 3281 vput(vp); 3282 nfsm_reply(NFSX_POSTOPATTR(v3) + NFSX_STATFS(v3)); 3283 if (v3) 3284 nfsm_srvpostop_attr(getret, &at); 3285 if (error) 3286 return (0); 3287 nfsm_build(sfp, struct nfs_statfs *, NFSX_STATFS(v3)); 3288 if (v3) { 3289 tval = (u_quad_t)((quad_t)sf->f_blocks * (quad_t)sf->f_bsize); 3290 txdr_hyper(tval, &sfp->sf_tbytes); 3291 tval = (u_quad_t)((quad_t)sf->f_bfree * (quad_t)sf->f_bsize); 3292 txdr_hyper(tval, &sfp->sf_fbytes); 3293 tval = (u_quad_t)((quad_t)sf->f_bavail * (quad_t)sf->f_bsize); 3294 txdr_hyper(tval, &sfp->sf_abytes); 3295 tval = (u_quad_t)sf->f_files; 3296 txdr_hyper(tval, &sfp->sf_tfiles); 3297 tval = (u_quad_t)sf->f_ffree; 3298 txdr_hyper(tval, &sfp->sf_ffiles); 3299 txdr_hyper(tval, &sfp->sf_afiles); 3300 sfp->sf_invarsec = 0; 3301 } else { 3302 sfp->sf_tsize = txdr_unsigned(NFS_MAXDGRAMDATA); 3303 sfp->sf_bsize = txdr_unsigned(sf->f_bsize); 3304 sfp->sf_blocks = txdr_unsigned(sf->f_blocks); 3305 sfp->sf_bfree = txdr_unsigned(sf->f_bfree); 3306 sfp->sf_bavail = txdr_unsigned(sf->f_bavail); 3307 } 3308 nfsm_srvdone; 3309 } 3310 3311 /* 3312 * nfs fsinfo service 3313 */ 3314 int 3315 nfsrv_fsinfo(nfsd, slp, procp, mrq) 3316 struct nfsrv_descript *nfsd; 3317 struct nfssvc_sock *slp; 3318 struct proc *procp; 3319 struct mbuf **mrq; 3320 { 3321 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 3322 struct mbuf *nam = nfsd->nd_nam; 3323 caddr_t dpos = nfsd->nd_dpos; 3324 struct ucred *cred = &nfsd->nd_cr; 3325 u_int32_t *tl; 3326 struct nfsv3_fsinfo *sip; 3327 int32_t t1; 3328 caddr_t bpos; 3329 int error = 0, rdonly, cache, getret = 1; 3330 uint32_t maxdata; 3331 char *cp2; 3332 struct mbuf *mb, *mreq; 3333 struct vnode *vp; 3334 struct vattr at; 3335 nfsfh_t nfh; 3336 fhandle_t *fhp; 3337 u_quad_t frev, maxfsize; 3338 struct statfs sb; 3339 3340 #ifndef nolint 3341 cache = 0; 3342 #endif 3343 fhp = &nfh.fh_generic; 3344 nfsm_srvmtofh(fhp); 3345 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 3346 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 3347 if (error) { 3348 nfsm_reply(NFSX_UNSIGNED); 3349 nfsm_srvpostop_attr(getret, &at); 3350 return (0); 3351 } 3352 3353 /* XXX Try to make a guess on the max file size. */ 3354 VFS_STATFS(vp->v_mount, &sb, (struct proc *)0); 3355 maxfsize = (u_quad_t)0x80000000 * sb.f_bsize - 1; 3356 3357 getret = VOP_GETATTR(vp, &at, cred, procp); 3358 vput(vp); 3359 nfsm_reply(NFSX_V3POSTOPATTR + NFSX_V3FSINFO); 3360 nfsm_srvpostop_attr(getret, &at); 3361 nfsm_build(sip, struct nfsv3_fsinfo *, NFSX_V3FSINFO); 3362 3363 /* 3364 * XXX 3365 * There should be file system VFS OP(s) to get this information. 3366 * For now, assume ufs. 3367 */ 3368 if (slp->ns_so->so_type == SOCK_DGRAM) 3369 maxdata = NFS_MAXDGRAMDATA; 3370 else 3371 maxdata = NFS_MAXDATA; 3372 sip->fs_rtmax = txdr_unsigned(maxdata); 3373 sip->fs_rtpref = txdr_unsigned(maxdata); 3374 sip->fs_rtmult = txdr_unsigned(NFS_FABLKSIZE); 3375 sip->fs_wtmax = txdr_unsigned(maxdata); 3376 sip->fs_wtpref = txdr_unsigned(maxdata); 3377 sip->fs_wtmult = txdr_unsigned(NFS_FABLKSIZE); 3378 sip->fs_dtpref = txdr_unsigned(maxdata); 3379 txdr_hyper(maxfsize, &sip->fs_maxfilesize); 3380 sip->fs_timedelta.nfsv3_sec = 0; 3381 sip->fs_timedelta.nfsv3_nsec = txdr_unsigned(1); 3382 sip->fs_properties = txdr_unsigned(NFSV3FSINFO_LINK | 3383 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 3384 NFSV3FSINFO_CANSETTIME); 3385 nfsm_srvdone; 3386 } 3387 3388 /* 3389 * nfs pathconf service 3390 */ 3391 int 3392 nfsrv_pathconf(nfsd, slp, procp, mrq) 3393 struct nfsrv_descript *nfsd; 3394 struct nfssvc_sock *slp; 3395 struct proc *procp; 3396 struct mbuf **mrq; 3397 { 3398 struct mbuf *mrep = nfsd->nd_mrep, *md = nfsd->nd_md; 3399 struct mbuf *nam = nfsd->nd_nam; 3400 caddr_t dpos = nfsd->nd_dpos; 3401 struct ucred *cred = &nfsd->nd_cr; 3402 u_int32_t *tl; 3403 struct nfsv3_pathconf *pc; 3404 int32_t t1; 3405 caddr_t bpos; 3406 int error = 0, rdonly, cache, getret = 1; 3407 register_t linkmax, namemax, chownres, notrunc; 3408 char *cp2; 3409 struct mbuf *mb, *mreq; 3410 struct vnode *vp; 3411 struct vattr at; 3412 nfsfh_t nfh; 3413 fhandle_t *fhp; 3414 u_quad_t frev; 3415 3416 #ifndef nolint 3417 cache = 0; 3418 #endif 3419 fhp = &nfh.fh_generic; 3420 nfsm_srvmtofh(fhp); 3421 error = nfsrv_fhtovp(fhp, 1, &vp, cred, slp, nam, 3422 &rdonly, (nfsd->nd_flag & ND_KERBAUTH), FALSE); 3423 if (error) { 3424 nfsm_reply(NFSX_UNSIGNED); 3425 nfsm_srvpostop_attr(getret, &at); 3426 return (0); 3427 } 3428 error = VOP_PATHCONF(vp, _PC_LINK_MAX, &linkmax); 3429 if (!error) 3430 error = VOP_PATHCONF(vp, _PC_NAME_MAX, &namemax); 3431 if (!error) 3432 error = VOP_PATHCONF(vp, _PC_CHOWN_RESTRICTED, &chownres); 3433 if (!error) 3434 error = VOP_PATHCONF(vp, _PC_NO_TRUNC, ¬runc); 3435 getret = VOP_GETATTR(vp, &at, cred, procp); 3436 vput(vp); 3437 nfsm_reply(NFSX_V3POSTOPATTR + NFSX_V3PATHCONF); 3438 nfsm_srvpostop_attr(getret, &at); 3439 if (error) 3440 return (0); 3441 nfsm_build(pc, struct nfsv3_pathconf *, NFSX_V3PATHCONF); 3442 3443 pc->pc_linkmax = txdr_unsigned(linkmax); 3444 pc->pc_namemax = txdr_unsigned(namemax); 3445 pc->pc_notrunc = txdr_unsigned(notrunc); 3446 pc->pc_chownrestricted = txdr_unsigned(chownres); 3447 3448 /* 3449 * These should probably be supported by VOP_PATHCONF(), but 3450 * until msdosfs is exportable (why would you want to?), the 3451 * Unix defaults should be ok. 3452 */ 3453 pc->pc_caseinsensitive = nfs_false; 3454 pc->pc_casepreserving = nfs_true; 3455 nfsm_srvdone; 3456 } 3457 3458 /* 3459 * Null operation, used by clients to ping server 3460 */ 3461 /* ARGSUSED */ 3462 int 3463 nfsrv_null(nfsd, slp, procp, mrq) 3464 struct nfsrv_descript *nfsd; 3465 struct nfssvc_sock *slp; 3466 struct proc *procp; 3467 struct mbuf **mrq; 3468 { 3469 struct mbuf *mrep = nfsd->nd_mrep; 3470 caddr_t bpos; 3471 int error = NFSERR_RETVOID, cache = 0; 3472 struct mbuf *mb, *mreq; 3473 u_quad_t frev; 3474 3475 nfsm_reply(0); 3476 return (0); 3477 } 3478 3479 /* 3480 * No operation, used for obsolete procedures 3481 */ 3482 /* ARGSUSED */ 3483 int 3484 nfsrv_noop(nfsd, slp, procp, mrq) 3485 struct nfsrv_descript *nfsd; 3486 struct nfssvc_sock *slp; 3487 struct proc *procp; 3488 struct mbuf **mrq; 3489 { 3490 struct mbuf *mrep = nfsd->nd_mrep; 3491 caddr_t bpos; 3492 int error, cache = 0; 3493 struct mbuf *mb, *mreq; 3494 u_quad_t frev; 3495 3496 if (nfsd->nd_repstat) 3497 error = nfsd->nd_repstat; 3498 else 3499 error = EPROCUNAVAIL; 3500 nfsm_reply(0); 3501 return (0); 3502 } 3503 3504 /* 3505 * Perform access checking for vnodes obtained from file handles that would 3506 * refer to files already opened by a Unix client. You cannot just use 3507 * vn_writechk() and VOP_ACCESS() for two reasons. 3508 * 1 - You must check for exported rdonly as well as MNT_RDONLY for the write case 3509 * 2 - The owner is to be given access irrespective of mode bits for some 3510 * operations, so that processes that chmod after opening a file don't 3511 * break. I don't like this because it opens a security hole, but since 3512 * the nfs server opens a security hole the size of a barn door anyhow, 3513 * what the heck. 3514 * 3515 * The exception to rule 2 is EPERM. If a file is IMMUTABLE, VOP_ACCESS() 3516 * will return EPERM instead of EACCESS. EPERM is always an error. 3517 */ 3518 int 3519 nfsrv_access(vp, flags, cred, rdonly, p, override) 3520 struct vnode *vp; 3521 int flags; 3522 struct ucred *cred; 3523 int rdonly; 3524 struct proc *p; 3525 { 3526 struct vattr vattr; 3527 int error; 3528 if (flags & VWRITE) { 3529 /* Just vn_writechk() changed to check rdonly */ 3530 /* 3531 * Disallow write attempts on read-only file systems; 3532 * unless the file is a socket or a block or character 3533 * device resident on the file system. 3534 */ 3535 if (rdonly || (vp->v_mount->mnt_flag & MNT_RDONLY)) { 3536 switch (vp->v_type) { 3537 case VREG: 3538 case VDIR: 3539 case VLNK: 3540 return (EROFS); 3541 default: 3542 break; 3543 } 3544 } 3545 3546 /* 3547 * If the vnode is in use as a process's text, 3548 * we can't allow writing. 3549 */ 3550 if (vp->v_flag & VTEXT) 3551 return (ETXTBSY); 3552 } 3553 error = VOP_GETATTR(vp, &vattr, cred, p); 3554 if (error) 3555 return (error); 3556 error = VOP_ACCESS(vp, flags, cred, p); 3557 /* 3558 * Allow certain operations for the owner (reads and writes 3559 * on files that are already open). 3560 */ 3561 if (override && error == EACCES && cred->cr_uid == vattr.va_uid) 3562 error = 0; 3563 return error; 3564 } 3565
Indexes created Wed Sep 24 05:09:52 GMT 2025