sys/fs/nfsserver/nfs_nfsdserv.c

   1 /*-
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Rick Macklem at The University of Guelph.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 4. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  */
  33
  34 #include <sys/cdefs.h>
  35 __FBSDID("$FreeBSD$");
  36
  37 /*
  38  * nfs version 2, 3 and 4 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, usually by calling a nfsvno_XXX()
  42  *       function in nfsd_port.c
  43  *   3 - build the rpc reply in an mbuf list
  44  * For nfsv4, these functions are called for each Op within the Compound RPC.
  45  */
  46
  47 #ifndef APPLEKEXT
  48 #include <fs/nfs/nfsport.h>
  49
  50 /* Global vars */
  51 extern u_int32_t newnfs_false, newnfs_true;
  52 extern enum vtype nv34tov_type[8];
  53 extern struct timeval nfsboottime;
  54 extern int nfs_rootfhset;
  55 extern int nfsrv_enable_crossmntpt;
  56 #endif  /* !APPLEKEXT */
  57
  58 static int      nfs_async = 0;
  59 SYSCTL_DECL(_vfs_nfsd);
  60 SYSCTL_INT(_vfs_nfsd, OID_AUTO, async, CTLFLAG_RW, &nfs_async, 0,
  61     "Tell client that writes were synced even though they were not");
  62
  63 /*
  64  * This list defines the GSS mechanisms supported.
  65  * (Don't ask me how you get these strings from the RFC stuff like
  66  *  iso(1), org(3)... but someone did it, so I don't need to know.)
  67  */
  68 static struct nfsgss_mechlist nfsgss_mechlist[] = {
  69         { 9, "\052\206\110\206\367\022\001\002\002", 11 },
  70         { 0, "", 0 },
  71 };
  72
  73 /* local functions */
  74 static void nfsrvd_symlinksub(struct nfsrv_descript *nd, struct nameidata *ndp,
  75     struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
  76     vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
  77     int *diraft_retp, nfsattrbit_t *attrbitp,
  78     NFSACL_T *aclp, NFSPROC_T *p, struct nfsexstuff *exp, char *pathcp,
  79     int pathlen);
  80 static void nfsrvd_mkdirsub(struct nfsrv_descript *nd, struct nameidata *ndp,
  81     struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
  82     vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
  83     int *diraft_retp, nfsattrbit_t *attrbitp, NFSACL_T *aclp,
  84     NFSPROC_T *p, struct nfsexstuff *exp);
  85
  86 /*
  87  * nfs access service (not a part of NFS V2)
  88  */
  89 APPLESTATIC int
  90 nfsrvd_access(struct nfsrv_descript *nd, __unused int isdgram,
  91     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
  92 {
  93         u_int32_t *tl;
  94         int getret, error = 0;
  95         struct nfsvattr nva;
  96         u_int32_t testmode, nfsmode, supported = 0;
  97         accmode_t deletebit;
  98
  99         if (nd->nd_repstat) {
 100                 nfsrv_postopattr(nd, 1, &nva);
 101                 goto out;
 102         }
 103         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
 104         nfsmode = fxdr_unsigned(u_int32_t, *tl);
 105         if ((nd->nd_flag & ND_NFSV4) &&
 106             (nfsmode & ~(NFSACCESS_READ | NFSACCESS_LOOKUP |
 107              NFSACCESS_MODIFY | NFSACCESS_EXTEND | NFSACCESS_DELETE |
 108              NFSACCESS_EXECUTE))) {
 109                 nd->nd_repstat = NFSERR_INVAL;
 110                 vput(vp);
 111                 goto out;
 112         }
 113         if (nfsmode & NFSACCESS_READ) {
 114                 supported |= NFSACCESS_READ;
 115                 if (nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, p,
 116                     NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
 117                         nfsmode &= ~NFSACCESS_READ;
 118         }
 119         if (nfsmode & NFSACCESS_MODIFY) {
 120                 supported |= NFSACCESS_MODIFY;
 121                 if (nfsvno_accchk(vp, VWRITE, nd->nd_cred, exp, p,
 122                     NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
 123                         nfsmode &= ~NFSACCESS_MODIFY;
 124         }
 125         if (nfsmode & NFSACCESS_EXTEND) {
 126                 supported |= NFSACCESS_EXTEND;
 127                 if (nfsvno_accchk(vp, VWRITE | VAPPEND, nd->nd_cred, exp, p,
 128                     NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
 129                         nfsmode &= ~NFSACCESS_EXTEND;
 130         }
 131         if (nfsmode & NFSACCESS_DELETE) {
 132                 supported |= NFSACCESS_DELETE;
 133                 if (vp->v_type == VDIR)
 134                         deletebit = VDELETE_CHILD;
 135                 else
 136                         deletebit = VDELETE;
 137                 if (nfsvno_accchk(vp, deletebit, nd->nd_cred, exp, p,
 138                     NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
 139                         nfsmode &= ~NFSACCESS_DELETE;
 140         }
 141         if (vnode_vtype(vp) == VDIR)
 142                 testmode = NFSACCESS_LOOKUP;
 143         else
 144                 testmode = NFSACCESS_EXECUTE;
 145         if (nfsmode & testmode) {
 146                 supported |= (nfsmode & testmode);
 147                 if (nfsvno_accchk(vp, VEXEC, nd->nd_cred, exp, p,
 148                     NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
 149                         nfsmode &= ~testmode;
 150         }
 151         nfsmode &= supported;
 152         if (nd->nd_flag & ND_NFSV3) {
 153                 getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 154                 nfsrv_postopattr(nd, getret, &nva);
 155         }
 156         vput(vp);
 157         if (nd->nd_flag & ND_NFSV4) {
 158                 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
 159                 *tl++ = txdr_unsigned(supported);
 160         } else
 161                 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 162         *tl = txdr_unsigned(nfsmode);
 163
 164 out:
 165         NFSEXITCODE2(0, nd);
 166         return (0);
 167 nfsmout:
 168         vput(vp);
 169         NFSEXITCODE2(error, nd);
 170         return (error);
 171 }
 172
 173 /*
 174  * nfs getattr service
 175  */
 176 APPLESTATIC int
 177 nfsrvd_getattr(struct nfsrv_descript *nd, int isdgram,
 178     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
 179 {
 180         struct nfsvattr nva;
 181         fhandle_t fh;
 182         int at_root = 0, error = 0, supports_nfsv4acls;
 183         struct nfsreferral *refp;
 184         nfsattrbit_t attrbits, tmpbits;
 185         struct mount *mp;
 186         struct vnode *tvp = NULL;
 187         struct vattr va;
 188         uint64_t mounted_on_fileno = 0;
 189         accmode_t accmode;
 190
 191         if (nd->nd_repstat)
 192                 goto out;
 193         if (nd->nd_flag & ND_NFSV4) {
 194                 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
 195                 if (error) {
 196                         vput(vp);
 197                         goto out;
 198                 }
 199
 200                 /*
 201                  * Check for a referral.
 202                  */
 203                 refp = nfsv4root_getreferral(vp, NULL, 0);
 204                 if (refp != NULL) {
 205                         (void) nfsrv_putreferralattr(nd, &attrbits, refp, 1,
 206                             &nd->nd_repstat);
 207                         vput(vp);
 208                         goto out;
 209                 }
 210                 if (nd->nd_repstat == 0) {
 211                         accmode = 0;
 212                         NFSSET_ATTRBIT(&tmpbits, &attrbits);
 213                         if (NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_ACL)) {
 214                                 NFSCLRBIT_ATTRBIT(&tmpbits, NFSATTRBIT_ACL);
 215                                 accmode |= VREAD_ACL;
 216                         }
 217                         if (NFSNONZERO_ATTRBIT(&tmpbits))
 218                                 accmode |= VREAD_ATTRIBUTES;
 219                         if (accmode != 0)
 220                                 nd->nd_repstat = nfsvno_accchk(vp, accmode,
 221                                     nd->nd_cred, exp, p, NFSACCCHK_NOOVERRIDE,
 222                                     NFSACCCHK_VPISLOCKED, NULL);
 223                 }
 224         }
 225         if (!nd->nd_repstat)
 226                 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 227         if (!nd->nd_repstat) {
 228                 if (nd->nd_flag & ND_NFSV4) {
 229                         if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_FILEHANDLE))
 230                                 nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
 231                         if (!nd->nd_repstat)
 232                                 nd->nd_repstat = nfsrv_checkgetattr(nd, vp,
 233                                     &nva, &attrbits, nd->nd_cred, p);
 234                         if (nd->nd_repstat == 0) {
 235                                 supports_nfsv4acls = nfs_supportsnfsv4acls(vp);
 236                                 mp = vp->v_mount;
 237                                 if (nfsrv_enable_crossmntpt != 0 &&
 238                                     vp->v_type == VDIR &&
 239                                     (vp->v_vflag & VV_ROOT) != 0 &&
 240                                     vp != rootvnode) {
 241                                         tvp = mp->mnt_vnodecovered;
 242                                         VREF(tvp);
 243                                         at_root = 1;
 244                                 } else
 245                                         at_root = 0;
 246                                 vfs_ref(mp);
 247                                 NFSVOPUNLOCK(vp, 0);
 248                                 if (at_root != 0) {
 249                                         if ((nd->nd_repstat =
 250                                              NFSVOPLOCK(tvp, LK_SHARED)) == 0) {
 251                                                 nd->nd_repstat = VOP_GETATTR(
 252                                                     tvp, &va, nd->nd_cred);
 253                                                 vput(tvp);
 254                                         } else
 255                                                 vrele(tvp);
 256                                         if (nd->nd_repstat == 0)
 257                                                 mounted_on_fileno = (uint64_t)
 258                                                     va.va_fileid;
 259                                         else
 260                                                 at_root = 0;
 261                                 }
 262                                 if (nd->nd_repstat == 0)
 263                                         nd->nd_repstat = vfs_busy(mp, 0);
 264                                 vfs_rel(mp);
 265                                 if (nd->nd_repstat == 0) {
 266                                         (void)nfsvno_fillattr(nd, mp, vp, &nva,
 267                                             &fh, 0, &attrbits, nd->nd_cred, p,
 268                                             isdgram, 1, supports_nfsv4acls,
 269                                             at_root, mounted_on_fileno);
 270                                         vfs_unbusy(mp);
 271                                 }
 272                                 vrele(vp);
 273                         } else
 274                                 vput(vp);
 275                 } else {
 276                         nfsrv_fillattr(nd, &nva);
 277                         vput(vp);
 278                 }
 279         } else {
 280                 vput(vp);
 281         }
 282
 283 out:
 284         NFSEXITCODE2(error, nd);
 285         return (error);
 286 }
 287
 288 /*
 289  * nfs setattr service
 290  */
 291 APPLESTATIC int
 292 nfsrvd_setattr(struct nfsrv_descript *nd, __unused int isdgram,
 293     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
 294 {
 295         struct nfsvattr nva, nva2;
 296         u_int32_t *tl;
 297         int preat_ret = 1, postat_ret = 1, gcheck = 0, error = 0;
 298         struct timespec guard = { 0, 0 };
 299         nfsattrbit_t attrbits, retbits;
 300         nfsv4stateid_t stateid;
 301         NFSACL_T *aclp = NULL;
 302
 303         if (nd->nd_repstat) {
 304                 nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva);
 305                 goto out;
 306         }
 307 #ifdef NFS4_ACL_EXTATTR_NAME
 308         aclp = acl_alloc(M_WAITOK);
 309         aclp->acl_cnt = 0;
 310 #endif
 311         NFSVNO_ATTRINIT(&nva);
 312         NFSZERO_ATTRBIT(&retbits);
 313         if (nd->nd_flag & ND_NFSV4) {
 314                 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
 315                 stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
 316                 NFSBCOPY((caddr_t)tl,(caddr_t)stateid.other,NFSX_STATEIDOTHER);
 317         }
 318         error = nfsrv_sattr(nd, &nva, &attrbits, aclp, p);
 319         if (error)
 320                 goto nfsmout;
 321         preat_ret = nfsvno_getattr(vp, &nva2, nd->nd_cred, p, 1);
 322         if (!nd->nd_repstat)
 323                 nd->nd_repstat = preat_ret;
 324         if (nd->nd_flag & ND_NFSV3) {
 325                 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
 326                 gcheck = fxdr_unsigned(int, *tl);
 327                 if (gcheck) {
 328                         NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
 329                         fxdr_nfsv3time(tl, &guard);
 330                 }
 331                 if (!nd->nd_repstat && gcheck &&
 332                     (nva2.na_ctime.tv_sec != guard.tv_sec ||
 333                      nva2.na_ctime.tv_nsec != guard.tv_nsec))
 334                         nd->nd_repstat = NFSERR_NOT_SYNC;
 335                 if (nd->nd_repstat) {
 336                         vput(vp);
 337 #ifdef NFS4_ACL_EXTATTR_NAME
 338                         acl_free(aclp);
 339 #endif
 340                         nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva);
 341                         goto out;
 342                 }
 343         } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4))
 344                 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
 345
 346         /*
 347          * Now that we have all the fields, lets do it.
 348          * If the size is being changed write access is required, otherwise
 349          * just check for a read only file system.
 350          */
 351         if (!nd->nd_repstat) {
 352                 if (NFSVNO_NOTSETSIZE(&nva)) {
 353                         if (NFSVNO_EXRDONLY(exp) ||
 354                             (vfs_flags(vnode_mount(vp)) & MNT_RDONLY))
 355                                 nd->nd_repstat = EROFS;
 356                 } else {
 357                         if (vnode_vtype(vp) != VREG)
 358                                 nd->nd_repstat = EINVAL;
 359                         else if (nva2.na_uid != nd->nd_cred->cr_uid ||
 360                             NFSVNO_EXSTRICTACCESS(exp))
 361                                 nd->nd_repstat = nfsvno_accchk(vp,
 362                                     VWRITE, nd->nd_cred, exp, p,
 363                                     NFSACCCHK_NOOVERRIDE,
 364                                     NFSACCCHK_VPISLOCKED, NULL);
 365                 }
 366         }
 367         if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4))
 368                 nd->nd_repstat = nfsrv_checksetattr(vp, nd, &stateid,
 369                     &nva, &attrbits, exp, p);
 370
 371         if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) {
 372             /*
 373              * For V4, try setting the attrbutes in sets, so that the
 374              * reply bitmap will be correct for an error case.
 375              */
 376             if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNER) ||
 377                 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP)) {
 378                 NFSVNO_ATTRINIT(&nva2);
 379                 NFSVNO_SETATTRVAL(&nva2, uid, nva.na_uid);
 380                 NFSVNO_SETATTRVAL(&nva2, gid, nva.na_gid);
 381                 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
 382                     exp);
 383                 if (!nd->nd_repstat) {
 384                     if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNER))
 385                         NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNER);
 386                     if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP))
 387                         NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNERGROUP);
 388                 }
 389             }
 390             if (!nd->nd_repstat &&
 391                 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_SIZE)) {
 392                 NFSVNO_ATTRINIT(&nva2);
 393                 NFSVNO_SETATTRVAL(&nva2, size, nva.na_size);
 394                 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
 395                     exp);
 396                 if (!nd->nd_repstat)
 397                     NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_SIZE);
 398             }
 399             if (!nd->nd_repstat &&
 400                 (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET) ||
 401                  NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET))) {
 402                 NFSVNO_ATTRINIT(&nva2);
 403                 NFSVNO_SETATTRVAL(&nva2, atime, nva.na_atime);
 404                 NFSVNO_SETATTRVAL(&nva2, mtime, nva.na_mtime);
 405                 if (nva.na_vaflags & VA_UTIMES_NULL) {
 406                         nva2.na_vaflags |= VA_UTIMES_NULL;
 407                         NFSVNO_SETACTIVE(&nva2, vaflags);
 408                 }
 409                 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
 410                     exp);
 411                 if (!nd->nd_repstat) {
 412                     if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET))
 413                         NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEACCESSSET);
 414                     if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET))
 415                         NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEMODIFYSET);
 416                 }
 417             }
 418             if (!nd->nd_repstat &&
 419                 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODE)) {
 420                 NFSVNO_ATTRINIT(&nva2);
 421                 NFSVNO_SETATTRVAL(&nva2, mode, nva.na_mode);
 422                 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
 423                     exp);
 424                 if (!nd->nd_repstat)
 425                     NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_MODE);
 426             }
 427
 428 #ifdef NFS4_ACL_EXTATTR_NAME
 429             if (!nd->nd_repstat && aclp->acl_cnt > 0 &&
 430                 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_ACL)) {
 431                 nd->nd_repstat = nfsrv_setacl(vp, aclp, nd->nd_cred, p);
 432                 if (!nd->nd_repstat)
 433                     NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_ACL);
 434             }
 435 #endif
 436         } else if (!nd->nd_repstat) {
 437                 nd->nd_repstat = nfsvno_setattr(vp, &nva, nd->nd_cred, p,
 438                     exp);
 439         }
 440         if (nd->nd_flag & (ND_NFSV2 | ND_NFSV3)) {
 441                 postat_ret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 442                 if (!nd->nd_repstat)
 443                         nd->nd_repstat = postat_ret;
 444         }
 445         vput(vp);
 446 #ifdef NFS4_ACL_EXTATTR_NAME
 447         acl_free(aclp);
 448 #endif
 449         if (nd->nd_flag & ND_NFSV3)
 450                 nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva);
 451         else if (nd->nd_flag & ND_NFSV4)
 452                 (void) nfsrv_putattrbit(nd, &retbits);
 453         else if (!nd->nd_repstat)
 454                 nfsrv_fillattr(nd, &nva);
 455
 456 out:
 457         NFSEXITCODE2(0, nd);
 458         return (0);
 459 nfsmout:
 460         vput(vp);
 461 #ifdef NFS4_ACL_EXTATTR_NAME
 462         acl_free(aclp);
 463 #endif
 464         if (nd->nd_flag & ND_NFSV4) {
 465                 /*
 466                  * For all nd_repstat, the V4 reply includes a bitmap,
 467                  * even NFSERR_BADXDR, which is what this will end up
 468                  * returning.
 469                  */
 470                 (void) nfsrv_putattrbit(nd, &retbits);
 471         }
 472         NFSEXITCODE2(error, nd);
 473         return (error);
 474 }
 475
 476 /*
 477  * nfs lookup rpc
 478  * (Also performs lookup parent for v4)
 479  */
 480 APPLESTATIC int
 481 nfsrvd_lookup(struct nfsrv_descript *nd, __unused int isdgram,
 482     vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
 483     struct nfsexstuff *exp)
 484 {
 485         struct nameidata named;
 486         vnode_t vp, dirp = NULL;
 487         int error = 0, dattr_ret = 1;
 488         struct nfsvattr nva, dattr;
 489         char *bufp;
 490         u_long *hashp;
 491
 492         if (nd->nd_repstat) {
 493                 nfsrv_postopattr(nd, dattr_ret, &dattr);
 494                 goto out;
 495         }
 496
 497         /*
 498          * For some reason, if dp is a symlink, the error
 499          * returned is supposed to be NFSERR_SYMLINK and not NFSERR_NOTDIR.
 500          */
 501         if (dp->v_type == VLNK && (nd->nd_flag & ND_NFSV4)) {
 502                 nd->nd_repstat = NFSERR_SYMLINK;
 503                 vrele(dp);
 504                 goto out;
 505         }
 506
 507         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP,
 508             LOCKLEAF | SAVESTART);
 509         nfsvno_setpathbuf(&named, &bufp, &hashp);
 510         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
 511         if (error) {
 512                 vrele(dp);
 513                 nfsvno_relpathbuf(&named);
 514                 goto out;
 515         }
 516         if (!nd->nd_repstat) {
 517                 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
 518         } else {
 519                 vrele(dp);
 520                 nfsvno_relpathbuf(&named);
 521         }
 522         if (nd->nd_repstat) {
 523                 if (dirp) {
 524                         if (nd->nd_flag & ND_NFSV3)
 525                                 dattr_ret = nfsvno_getattr(dirp, &dattr,
 526                                     nd->nd_cred, p, 0);
 527                         vrele(dirp);
 528                 }
 529                 if (nd->nd_flag & ND_NFSV3)
 530                         nfsrv_postopattr(nd, dattr_ret, &dattr);
 531                 goto out;
 532         }
 533         if (named.ni_startdir)
 534                 vrele(named.ni_startdir);
 535         nfsvno_relpathbuf(&named);
 536         vp = named.ni_vp;
 537         if ((nd->nd_flag & ND_NFSV4) != 0 && !NFSVNO_EXPORTED(exp) &&
 538             vp->v_type != VDIR && vp->v_type != VLNK)
 539                 /*
 540                  * Only allow lookup of VDIR and VLNK for traversal of
 541                  * non-exported volumes during NFSv4 mounting.
 542                  */
 543                 nd->nd_repstat = ENOENT;
 544         if (nd->nd_repstat == 0)
 545                 nd->nd_repstat = nfsvno_getfh(vp, fhp, p);
 546         if (!(nd->nd_flag & ND_NFSV4) && !nd->nd_repstat)
 547                 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 548         if (vpp != NULL && nd->nd_repstat == 0)
 549                 *vpp = vp;
 550         else
 551                 vput(vp);
 552         if (dirp) {
 553                 if (nd->nd_flag & ND_NFSV3)
 554                         dattr_ret = nfsvno_getattr(dirp, &dattr, nd->nd_cred,
 555                             p, 0);
 556                 vrele(dirp);
 557         }
 558         if (nd->nd_repstat) {
 559                 if (nd->nd_flag & ND_NFSV3)
 560                         nfsrv_postopattr(nd, dattr_ret, &dattr);
 561                 goto out;
 562         }
 563         if (nd->nd_flag & ND_NFSV2) {
 564                 (void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
 565                 nfsrv_fillattr(nd, &nva);
 566         } else if (nd->nd_flag & ND_NFSV3) {
 567                 (void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
 568                 nfsrv_postopattr(nd, 0, &nva);
 569                 nfsrv_postopattr(nd, dattr_ret, &dattr);
 570         }
 571
 572 out:
 573         NFSEXITCODE2(error, nd);
 574         return (error);
 575 }
 576
 577 /*
 578  * nfs readlink service
 579  */
 580 APPLESTATIC int
 581 nfsrvd_readlink(struct nfsrv_descript *nd, __unused int isdgram,
 582     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
 583 {
 584         u_int32_t *tl;
 585         mbuf_t mp = NULL, mpend = NULL;
 586         int getret = 1, len;
 587         struct nfsvattr nva;
 588
 589         if (nd->nd_repstat) {
 590                 nfsrv_postopattr(nd, getret, &nva);
 591                 goto out;
 592         }
 593         if (vnode_vtype(vp) != VLNK) {
 594                 if (nd->nd_flag & ND_NFSV2)
 595                         nd->nd_repstat = ENXIO;
 596                 else
 597                         nd->nd_repstat = EINVAL;
 598         }
 599         if (!nd->nd_repstat)
 600                 nd->nd_repstat = nfsvno_readlink(vp, nd->nd_cred, p,
 601                     &mp, &mpend, &len);
 602         if (nd->nd_flag & ND_NFSV3)
 603                 getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 604         vput(vp);
 605         if (nd->nd_flag & ND_NFSV3)
 606                 nfsrv_postopattr(nd, getret, &nva);
 607         if (nd->nd_repstat)
 608                 goto out;
 609         NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 610         *tl = txdr_unsigned(len);
 611         mbuf_setnext(nd->nd_mb, mp);
 612         nd->nd_mb = mpend;
 613         nd->nd_bpos = NFSMTOD(mpend, caddr_t) + mbuf_len(mpend);
 614
 615 out:
 616         NFSEXITCODE2(0, nd);
 617         return (0);
 618 }
 619
 620 /*
 621  * nfs read service
 622  */
 623 APPLESTATIC int
 624 nfsrvd_read(struct nfsrv_descript *nd, __unused int isdgram,
 625     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
 626 {
 627         u_int32_t *tl;
 628         int error = 0, cnt, getret = 1, reqlen, eof = 0;
 629         mbuf_t m2, m3;
 630         struct nfsvattr nva;
 631         off_t off = 0x0;
 632         struct nfsstate st, *stp = &st;
 633         struct nfslock lo, *lop = &lo;
 634         nfsv4stateid_t stateid;
 635         nfsquad_t clientid;
 636
 637         if (nd->nd_repstat) {
 638                 nfsrv_postopattr(nd, getret, &nva);
 639                 goto out;
 640         }
 641         if (nd->nd_flag & ND_NFSV2) {
 642                 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
 643                 off = (off_t)fxdr_unsigned(u_int32_t, *tl++);
 644                 reqlen = fxdr_unsigned(int, *tl);
 645         } else if (nd->nd_flag & ND_NFSV3) {
 646                 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
 647                 off = fxdr_hyper(tl);
 648                 tl += 2;
 649                 reqlen = fxdr_unsigned(int, *tl);
 650         } else {
 651                 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 3*NFSX_UNSIGNED);
 652                 reqlen = fxdr_unsigned(int, *(tl + 6));
 653         }
 654         if (reqlen > NFS_SRVMAXDATA(nd)) {
 655                 reqlen = NFS_SRVMAXDATA(nd);
 656         } else if (reqlen < 0) {
 657                 error = EBADRPC;
 658                 goto nfsmout;
 659         }
 660         if (nd->nd_flag & ND_NFSV4) {
 661                 stp->ls_flags = (NFSLCK_CHECK | NFSLCK_READACCESS);
 662                 lop->lo_flags = NFSLCK_READ;
 663                 stp->ls_ownerlen = 0;
 664                 stp->ls_op = NULL;
 665                 stp->ls_uid = nd->nd_cred->cr_uid;
 666                 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
 667                 clientid.lval[0] = stp->ls_stateid.other[0] = *tl++;
 668                 clientid.lval[1] = stp->ls_stateid.other[1] = *tl++;
 669                 if (nd->nd_flag & ND_IMPLIEDCLID) {
 670                         if (nd->nd_clientid.qval != clientid.qval)
 671                                 printf("EEK! multiple clids\n");
 672                 } else {
 673                         nd->nd_flag |= ND_IMPLIEDCLID;
 674                         nd->nd_clientid.qval = clientid.qval;
 675                 }
 676                 stp->ls_stateid.other[2] = *tl++;
 677                 off = fxdr_hyper(tl);
 678                 lop->lo_first = off;
 679                 tl += 2;
 680                 lop->lo_end = off + reqlen;
 681                 /*
 682                  * Paranoia, just in case it wraps around.
 683                  */
 684                 if (lop->lo_end < off)
 685                         lop->lo_end = NFS64BITSSET;
 686         }
 687         if (vnode_vtype(vp) != VREG) {
 688                 if (nd->nd_flag & ND_NFSV3)
 689                         nd->nd_repstat = EINVAL;
 690                 else
 691                         nd->nd_repstat = (vnode_vtype(vp) == VDIR) ? EISDIR :
 692                             EINVAL;
 693         }
 694         getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 695         if (!nd->nd_repstat)
 696                 nd->nd_repstat = getret;
 697         if (!nd->nd_repstat &&
 698             (nva.na_uid != nd->nd_cred->cr_uid ||
 699              NFSVNO_EXSTRICTACCESS(exp))) {
 700                 nd->nd_repstat = nfsvno_accchk(vp, VREAD,
 701                     nd->nd_cred, exp, p,
 702                     NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
 703                 if (nd->nd_repstat)
 704                         nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
 705                             nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
 706                             NFSACCCHK_VPISLOCKED, NULL);
 707         }
 708         if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat)
 709                 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid,
 710                     &stateid, exp, nd, p);
 711         if (nd->nd_repstat) {
 712                 vput(vp);
 713                 if (nd->nd_flag & ND_NFSV3)
 714                         nfsrv_postopattr(nd, getret, &nva);
 715                 goto out;
 716         }
 717         if (off >= nva.na_size) {
 718                 cnt = 0;
 719                 eof = 1;
 720         } else if (reqlen == 0)
 721                 cnt = 0;
 722         else if ((off + reqlen) >= nva.na_size) {
 723                 cnt = nva.na_size - off;
 724                 eof = 1;
 725         } else
 726                 cnt = reqlen;
 727         m3 = NULL;
 728         if (cnt > 0) {
 729                 nd->nd_repstat = nfsvno_read(vp, off, cnt, nd->nd_cred, p,
 730                     &m3, &m2);
 731                 if (!(nd->nd_flag & ND_NFSV4)) {
 732                         getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 733                         if (!nd->nd_repstat)
 734                                 nd->nd_repstat = getret;
 735                 }
 736                 if (nd->nd_repstat) {
 737                         vput(vp);
 738                         if (m3)
 739                                 mbuf_freem(m3);
 740                         if (nd->nd_flag & ND_NFSV3)
 741                                 nfsrv_postopattr(nd, getret, &nva);
 742                         goto out;
 743                 }
 744         }
 745         vput(vp);
 746         if (nd->nd_flag & ND_NFSV2) {
 747                 nfsrv_fillattr(nd, &nva);
 748                 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 749         } else {
 750                 if (nd->nd_flag & ND_NFSV3) {
 751                         nfsrv_postopattr(nd, getret, &nva);
 752                         NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
 753                         *tl++ = txdr_unsigned(cnt);
 754                 } else
 755                         NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
 756                 if (eof)
 757                         *tl++ = newnfs_true;
 758                 else
 759                         *tl++ = newnfs_false;
 760         }
 761         *tl = txdr_unsigned(cnt);
 762         if (m3) {
 763                 mbuf_setnext(nd->nd_mb, m3);
 764                 nd->nd_mb = m2;
 765                 nd->nd_bpos = NFSMTOD(m2, caddr_t) + mbuf_len(m2);
 766         }
 767
 768 out:
 769         NFSEXITCODE2(0, nd);
 770         return (0);
 771 nfsmout:
 772         vput(vp);
 773         NFSEXITCODE2(error, nd);
 774         return (error);
 775 }
 776
 777 /*
 778  * nfs write service
 779  */
 780 APPLESTATIC int
 781 nfsrvd_write(struct nfsrv_descript *nd, __unused int isdgram,
 782     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
 783 {
 784         int i, cnt;
 785         u_int32_t *tl;
 786         mbuf_t mp;
 787         struct nfsvattr nva, forat;
 788         int aftat_ret = 1, retlen, len, error = 0, forat_ret = 1;
 789         int stable = NFSWRITE_FILESYNC;
 790         off_t off;
 791         struct nfsstate st, *stp = &st;
 792         struct nfslock lo, *lop = &lo;
 793         nfsv4stateid_t stateid;
 794         nfsquad_t clientid;
 795
 796         if (nd->nd_repstat) {
 797                 nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva);
 798                 goto out;
 799         }
 800         if (nd->nd_flag & ND_NFSV2) {
 801                 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
 802                 off = (off_t)fxdr_unsigned(u_int32_t, *++tl);
 803                 tl += 2;
 804                 retlen = len = fxdr_unsigned(int32_t, *tl);
 805         } else if (nd->nd_flag & ND_NFSV3) {
 806                 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
 807                 off = fxdr_hyper(tl);
 808                 tl += 3;
 809                 stable = fxdr_unsigned(int, *tl++);
 810                 retlen = len = fxdr_unsigned(int32_t, *tl);
 811         } else {
 812                 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 4 * NFSX_UNSIGNED);
 813                 stp->ls_flags = (NFSLCK_CHECK | NFSLCK_WRITEACCESS);
 814                 lop->lo_flags = NFSLCK_WRITE;
 815                 stp->ls_ownerlen = 0;
 816                 stp->ls_op = NULL;
 817                 stp->ls_uid = nd->nd_cred->cr_uid;
 818                 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
 819                 clientid.lval[0] = stp->ls_stateid.other[0] = *tl++;
 820                 clientid.lval[1] = stp->ls_stateid.other[1] = *tl++;
 821                 if (nd->nd_flag & ND_IMPLIEDCLID) {
 822                         if (nd->nd_clientid.qval != clientid.qval)
 823                                 printf("EEK! multiple clids\n");
 824                 } else {
 825                         nd->nd_flag |= ND_IMPLIEDCLID;
 826                         nd->nd_clientid.qval = clientid.qval;
 827                 }
 828                 stp->ls_stateid.other[2] = *tl++;
 829                 off = fxdr_hyper(tl);
 830                 lop->lo_first = off;
 831                 tl += 2;
 832                 stable = fxdr_unsigned(int, *tl++);
 833                 retlen = len = fxdr_unsigned(int32_t, *tl);
 834                 lop->lo_end = off + len;
 835                 /*
 836                  * Paranoia, just in case it wraps around, which shouldn't
 837                  * ever happen anyhow.
 838                  */
 839                 if (lop->lo_end < lop->lo_first)
 840                         lop->lo_end = NFS64BITSSET;
 841         }
 842
 843         /*
 844          * Loop through the mbuf chain, counting how many mbufs are a
 845          * part of this write operation, so the iovec size is known.
 846          */
 847         cnt = 0;
 848         mp = nd->nd_md;
 849         i = NFSMTOD(mp, caddr_t) + mbuf_len(mp) - nd->nd_dpos;
 850         while (len > 0) {
 851                 if (i > 0) {
 852                         len -= i;
 853                         cnt++;
 854                 }
 855                 mp = mbuf_next(mp);
 856                 if (!mp) {
 857                         if (len > 0) {
 858                                 error = EBADRPC;
 859                                 goto nfsmout;
 860                         }
 861                 } else
 862                         i = mbuf_len(mp);
 863         }
 864
 865         if (retlen > NFS_MAXDATA || retlen < 0)
 866                 nd->nd_repstat = EIO;
 867         if (vnode_vtype(vp) != VREG && !nd->nd_repstat) {
 868                 if (nd->nd_flag & ND_NFSV3)
 869                         nd->nd_repstat = EINVAL;
 870                 else
 871                         nd->nd_repstat = (vnode_vtype(vp) == VDIR) ? EISDIR :
 872                             EINVAL;
 873         }
 874         forat_ret = nfsvno_getattr(vp, &forat, nd->nd_cred, p, 1);
 875         if (!nd->nd_repstat)
 876                 nd->nd_repstat = forat_ret;
 877         if (!nd->nd_repstat &&
 878             (forat.na_uid != nd->nd_cred->cr_uid ||
 879              NFSVNO_EXSTRICTACCESS(exp)))
 880                 nd->nd_repstat = nfsvno_accchk(vp, VWRITE,
 881                     nd->nd_cred, exp, p,
 882                     NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
 883         if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
 884                 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid,
 885                     &stateid, exp, nd, p);
 886         }
 887         if (nd->nd_repstat) {
 888                 vput(vp);
 889                 if (nd->nd_flag & ND_NFSV3)
 890                         nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva);
 891                 goto out;
 892         }
 893
 894         /*
 895          * For NFS Version 2, it is not obvious what a write of zero length
 896          * should do, but I might as well be consistent with Version 3,
 897          * which is to return ok so long as there are no permission problems.
 898          */
 899         if (retlen > 0) {
 900                 nd->nd_repstat = nfsvno_write(vp, off, retlen, cnt, stable,
 901                     nd->nd_md, nd->nd_dpos, nd->nd_cred, p);
 902                 error = nfsm_advance(nd, NFSM_RNDUP(retlen), -1);
 903                 if (error)
 904                         panic("nfsrv_write mbuf");
 905         }
 906         if (nd->nd_flag & ND_NFSV4)
 907                 aftat_ret = 0;
 908         else
 909                 aftat_ret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
 910         vput(vp);
 911         if (!nd->nd_repstat)
 912                 nd->nd_repstat = aftat_ret;
 913         if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
 914                 if (nd->nd_flag & ND_NFSV3)
 915                         nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva);
 916                 if (nd->nd_repstat)
 917                         goto out;
 918                 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
 919                 *tl++ = txdr_unsigned(retlen);
 920                 /*
 921                  * If nfs_async is set, then pretend the write was FILESYNC.
 922                  * Warning: Doing this violates RFC1813 and runs a risk
 923                  * of data written by a client being lost when the server
 924                  * crashes/reboots.
 925                  */
 926                 if (stable == NFSWRITE_UNSTABLE && nfs_async == 0)
 927                         *tl++ = txdr_unsigned(stable);
 928                 else
 929                         *tl++ = txdr_unsigned(NFSWRITE_FILESYNC);
 930                 /*
 931                  * Actually, there is no need to txdr these fields,
 932                  * but it may make the values more human readable,
 933                  * for debugging purposes.
 934                  */
 935                 *tl++ = txdr_unsigned(nfsboottime.tv_sec);
 936                 *tl = txdr_unsigned(nfsboottime.tv_usec);
 937         } else if (!nd->nd_repstat)
 938                 nfsrv_fillattr(nd, &nva);
 939
 940 out:
 941         NFSEXITCODE2(0, nd);
 942         return (0);
 943 nfsmout:
 944         vput(vp);
 945         NFSEXITCODE2(error, nd);
 946         return (error);
 947 }
 948
 949 /*
 950  * nfs create service (creates regular files for V2 and V3. Spec. files for V2.)
 951  * now does a truncate to 0 length via. setattr if it already exists
 952  * The core creation routine has been extracted out into nfsrv_creatsub(),
 953  * so it can also be used by nfsrv_open() for V4.
 954  */
 955 APPLESTATIC int
 956 nfsrvd_create(struct nfsrv_descript *nd, __unused int isdgram,
 957     vnode_t dp, NFSPROC_T *p, struct nfsexstuff *exp)
 958 {
 959         struct nfsvattr nva, dirfor, diraft;
 960         struct nfsv2_sattr *sp;
 961         struct nameidata named;
 962         u_int32_t *tl;
 963         int error = 0, tsize, dirfor_ret = 1, diraft_ret = 1;
 964         int how = NFSCREATE_UNCHECKED, exclusive_flag = 0;
 965         NFSDEV_T rdev = 0;
 966         vnode_t vp = NULL, dirp = NULL;
 967         fhandle_t fh;
 968         char *bufp;
 969         u_long *hashp;
 970         enum vtype vtyp;
 971         int32_t cverf[2], tverf[2] = { 0, 0 };
 972
 973         if (nd->nd_repstat) {
 974                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
 975                 goto out;
 976         }
 977         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
 978             LOCKPARENT | LOCKLEAF | SAVESTART);
 979         nfsvno_setpathbuf(&named, &bufp, &hashp);
 980         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
 981         if (error)
 982                 goto nfsmout;
 983         if (!nd->nd_repstat) {
 984                 NFSVNO_ATTRINIT(&nva);
 985                 if (nd->nd_flag & ND_NFSV2) {
 986                         NFSM_DISSECT(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
 987                         vtyp = IFTOVT(fxdr_unsigned(u_int32_t, sp->sa_mode));
 988                         if (vtyp == VNON)
 989                                 vtyp = VREG;
 990                         NFSVNO_SETATTRVAL(&nva, type, vtyp);
 991                         NFSVNO_SETATTRVAL(&nva, mode,
 992                             nfstov_mode(sp->sa_mode));
 993                         switch (nva.na_type) {
 994                         case VREG:
 995                                 tsize = fxdr_unsigned(int32_t, sp->sa_size);
 996                                 if (tsize != -1)
 997                                         NFSVNO_SETATTRVAL(&nva, size,
 998                                             (u_quad_t)tsize);
 999                                 break;
1000                         case VCHR:
1001                         case VBLK:
1002                         case VFIFO:
1003                                 rdev = fxdr_unsigned(NFSDEV_T, sp->sa_size);
1004                                 break;
1005                         default:
1006                                 break;
1007                         };
1008                 } else {
1009                         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1010                         how = fxdr_unsigned(int, *tl);
1011                         switch (how) {
1012                         case NFSCREATE_GUARDED:
1013                         case NFSCREATE_UNCHECKED:
1014                                 error = nfsrv_sattr(nd, &nva, NULL, NULL, p);
1015                                 if (error)
1016                                         goto nfsmout;
1017                                 break;
1018                         case NFSCREATE_EXCLUSIVE:
1019                                 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
1020                                 cverf[0] = *tl++;
1021                                 cverf[1] = *tl;
1022                                 exclusive_flag = 1;
1023                                 break;
1024                         };
1025                         NFSVNO_SETATTRVAL(&nva, type, VREG);
1026                 }
1027         }
1028         if (nd->nd_repstat) {
1029                 nfsvno_relpathbuf(&named);
1030                 if (nd->nd_flag & ND_NFSV3) {
1031                         dirfor_ret = nfsvno_getattr(dp, &dirfor, nd->nd_cred,
1032                             p, 1);
1033                         nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
1034                             &diraft);
1035                 }
1036                 vput(dp);
1037                 goto out;
1038         }
1039
1040         nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, p, &dirp);
1041         if (dirp) {
1042                 if (nd->nd_flag & ND_NFSV2) {
1043                         vrele(dirp);
1044                         dirp = NULL;
1045                 } else {
1046                         dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred,
1047                             p, 0);
1048                 }
1049         }
1050         if (nd->nd_repstat) {
1051                 if (nd->nd_flag & ND_NFSV3)
1052                         nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
1053                             &diraft);
1054                 if (dirp)
1055                         vrele(dirp);
1056                 goto out;
1057         }
1058
1059         if (!(nd->nd_flag & ND_NFSV2)) {
1060                 switch (how) {
1061                 case NFSCREATE_GUARDED:
1062                         if (named.ni_vp)
1063                                 nd->nd_repstat = EEXIST;
1064                         break;
1065                 case NFSCREATE_UNCHECKED:
1066                         break;
1067                 case NFSCREATE_EXCLUSIVE:
1068                         if (named.ni_vp == NULL)
1069                                 NFSVNO_SETATTRVAL(&nva, mode, 0);
1070                         break;
1071                 };
1072         }
1073
1074         /*
1075          * Iff doesn't exist, create it
1076          * otherwise just truncate to 0 length
1077          *   should I set the mode too ?
1078          */
1079         nd->nd_repstat = nfsvno_createsub(nd, &named, &vp, &nva,
1080             &exclusive_flag, cverf, rdev, p, exp);
1081
1082         if (!nd->nd_repstat) {
1083                 nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
1084                 if (!nd->nd_repstat)
1085                         nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred,
1086                             p, 1);
1087                 vput(vp);
1088                 if (!nd->nd_repstat) {
1089                         tverf[0] = nva.na_atime.tv_sec;
1090                         tverf[1] = nva.na_atime.tv_nsec;
1091                 }
1092         }
1093         if (nd->nd_flag & ND_NFSV2) {
1094                 if (!nd->nd_repstat) {
1095                         (void) nfsm_fhtom(nd, (u_int8_t *)&fh, 0, 0);
1096                         nfsrv_fillattr(nd, &nva);
1097                 }
1098         } else {
1099                 if (exclusive_flag && !nd->nd_repstat && (cverf[0] != tverf[0]
1100                     || cverf[1] != tverf[1]))
1101                         nd->nd_repstat = EEXIST;
1102                 diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p, 0);
1103                 vrele(dirp);
1104                 if (!nd->nd_repstat) {
1105                         (void) nfsm_fhtom(nd, (u_int8_t *)&fh, 0, 1);
1106                         nfsrv_postopattr(nd, 0, &nva);
1107                 }
1108                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1109         }
1110
1111 out:
1112         NFSEXITCODE2(0, nd);
1113         return (0);
1114 nfsmout:
1115         vput(dp);
1116         nfsvno_relpathbuf(&named);
1117         NFSEXITCODE2(error, nd);
1118         return (error);
1119 }
1120
1121 /*
1122  * nfs v3 mknod service (and v4 create)
1123  */
1124 APPLESTATIC int
1125 nfsrvd_mknod(struct nfsrv_descript *nd, __unused int isdgram,
1126     vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
1127     struct nfsexstuff *exp)
1128 {
1129         struct nfsvattr nva, dirfor, diraft;
1130         u_int32_t *tl;
1131         struct nameidata named;
1132         int error = 0, dirfor_ret = 1, diraft_ret = 1, pathlen;
1133         u_int32_t major, minor;
1134         enum vtype vtyp = VNON;
1135         nfstype nfs4type = NFNON;
1136         vnode_t vp, dirp = NULL;
1137         nfsattrbit_t attrbits;
1138         char *bufp = NULL, *pathcp = NULL;
1139         u_long *hashp, cnflags;
1140         NFSACL_T *aclp = NULL;
1141
1142         NFSVNO_ATTRINIT(&nva);
1143         cnflags = (LOCKPARENT | SAVESTART);
1144         if (nd->nd_repstat) {
1145                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1146                 goto out;
1147         }
1148 #ifdef NFS4_ACL_EXTATTR_NAME
1149         aclp = acl_alloc(M_WAITOK);
1150         aclp->acl_cnt = 0;
1151 #endif
1152
1153         /*
1154          * For V4, the creation stuff is here, Yuck!
1155          */
1156         if (nd->nd_flag & ND_NFSV4) {
1157                 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1158                 vtyp = nfsv34tov_type(*tl);
1159                 nfs4type = fxdr_unsigned(nfstype, *tl);
1160                 switch (nfs4type) {
1161                 case NFLNK:
1162                         error = nfsvno_getsymlink(nd, &nva, p, &pathcp,
1163                             &pathlen);
1164                         if (error)
1165                                 goto nfsmout;
1166                         break;
1167                 case NFCHR:
1168                 case NFBLK:
1169                         NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
1170                         major = fxdr_unsigned(u_int32_t, *tl++);
1171                         minor = fxdr_unsigned(u_int32_t, *tl);
1172                         nva.na_rdev = NFSMAKEDEV(major, minor);
1173                         break;
1174                 case NFSOCK:
1175                 case NFFIFO:
1176                         break;
1177                 case NFDIR:
1178                         cnflags = (LOCKPARENT | SAVENAME);
1179                         break;
1180                 default:
1181                         nd->nd_repstat = NFSERR_BADTYPE;
1182                         vrele(dp);
1183 #ifdef NFS4_ACL_EXTATTR_NAME
1184                         acl_free(aclp);
1185 #endif
1186                         goto out;
1187                 }
1188         }
1189         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, cnflags);
1190         nfsvno_setpathbuf(&named, &bufp, &hashp);
1191         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
1192         if (error)
1193                 goto nfsmout;
1194         if (!nd->nd_repstat) {
1195                 if (nd->nd_flag & ND_NFSV3) {
1196                         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1197                         vtyp = nfsv34tov_type(*tl);
1198                 }
1199                 error = nfsrv_sattr(nd, &nva, &attrbits, aclp, p);
1200                 if (error)
1201                         goto nfsmout;
1202                 nva.na_type = vtyp;
1203                 if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV3) &&
1204                     (vtyp == VCHR || vtyp == VBLK)) {
1205                         NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
1206                         major = fxdr_unsigned(u_int32_t, *tl++);
1207                         minor = fxdr_unsigned(u_int32_t, *tl);
1208                         nva.na_rdev = NFSMAKEDEV(major, minor);
1209                 }
1210         }
1211
1212         dirfor_ret = nfsvno_getattr(dp, &dirfor, nd->nd_cred, p, 0);
1213         if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) {
1214                 if (!dirfor_ret && NFSVNO_ISSETGID(&nva) &&
1215                     dirfor.na_gid == nva.na_gid)
1216                         NFSVNO_UNSET(&nva, gid);
1217                 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
1218         }
1219         if (nd->nd_repstat) {
1220                 vrele(dp);
1221 #ifdef NFS4_ACL_EXTATTR_NAME
1222                 acl_free(aclp);
1223 #endif
1224                 nfsvno_relpathbuf(&named);
1225                 if (pathcp)
1226                         FREE(pathcp, M_TEMP);
1227                 if (nd->nd_flag & ND_NFSV3)
1228                         nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
1229                             &diraft);
1230                 goto out;
1231         }
1232
1233         /*
1234          * Yuck! For V4, mkdir and link are here and some V4 clients don't fill
1235          * in va_mode, so we'll have to set a default here.
1236          */
1237         if (NFSVNO_NOTSETMODE(&nva)) {
1238                 if (vtyp == VLNK)
1239                         nva.na_mode = 0755;
1240                 else
1241                         nva.na_mode = 0400;
1242         }
1243
1244         if (vtyp == VDIR)
1245                 named.ni_cnd.cn_flags |= WILLBEDIR;
1246         nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
1247         if (nd->nd_repstat) {
1248                 if (dirp) {
1249                         if (nd->nd_flag & ND_NFSV3)
1250                                 dirfor_ret = nfsvno_getattr(dirp, &dirfor,
1251                                     nd->nd_cred, p, 0);
1252                         vrele(dirp);
1253                 }
1254 #ifdef NFS4_ACL_EXTATTR_NAME
1255                 acl_free(aclp);
1256 #endif
1257                 if (nd->nd_flag & ND_NFSV3)
1258                         nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
1259                             &diraft);
1260                 goto out;
1261         }
1262         if (dirp)
1263                 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred, p, 0);
1264
1265         if ((nd->nd_flag & ND_NFSV4) && (vtyp == VDIR || vtyp == VLNK)) {
1266                 if (vtyp == VDIR) {
1267                         nfsrvd_mkdirsub(nd, &named, &nva, fhp, vpp, dirp,
1268                             &dirfor, &diraft, &diraft_ret, &attrbits, aclp, p,
1269                             exp);
1270 #ifdef NFS4_ACL_EXTATTR_NAME
1271                         acl_free(aclp);
1272 #endif
1273                         goto out;
1274                 } else if (vtyp == VLNK) {
1275                         nfsrvd_symlinksub(nd, &named, &nva, fhp, vpp, dirp,
1276                             &dirfor, &diraft, &diraft_ret, &attrbits,
1277                             aclp, p, exp, pathcp, pathlen);
1278 #ifdef NFS4_ACL_EXTATTR_NAME
1279                         acl_free(aclp);
1280 #endif
1281                         FREE(pathcp, M_TEMP);
1282                         goto out;
1283                 }
1284         }
1285
1286         nd->nd_repstat = nfsvno_mknod(&named, &nva, nd->nd_cred, p);
1287         if (!nd->nd_repstat) {
1288                 vp = named.ni_vp;
1289                 nfsrv_fixattr(nd, vp, &nva, aclp, p, &attrbits, exp);
1290                 nd->nd_repstat = nfsvno_getfh(vp, fhp, p);
1291                 if ((nd->nd_flag & ND_NFSV3) && !nd->nd_repstat)
1292                         nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred,
1293                             p, 1);
1294                 if (vpp != NULL && nd->nd_repstat == 0) {
1295                         NFSVOPUNLOCK(vp, 0);
1296                         *vpp = vp;
1297                 } else
1298                         vput(vp);
1299         }
1300
1301         diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p, 0);
1302         vrele(dirp);
1303         if (!nd->nd_repstat) {
1304                 if (nd->nd_flag & ND_NFSV3) {
1305                         (void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 1);
1306                         nfsrv_postopattr(nd, 0, &nva);
1307                 } else {
1308                         NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
1309                         *tl++ = newnfs_false;
1310                         txdr_hyper(dirfor.na_filerev, tl);
1311                         tl += 2;
1312                         txdr_hyper(diraft.na_filerev, tl);
1313                         (void) nfsrv_putattrbit(nd, &attrbits);
1314                 }
1315         }
1316         if (nd->nd_flag & ND_NFSV3)
1317                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1318 #ifdef NFS4_ACL_EXTATTR_NAME
1319         acl_free(aclp);
1320 #endif
1321
1322 out:
1323         NFSEXITCODE2(0, nd);
1324         return (0);
1325 nfsmout:
1326         vrele(dp);
1327 #ifdef NFS4_ACL_EXTATTR_NAME
1328         acl_free(aclp);
1329 #endif
1330         if (bufp)
1331                 nfsvno_relpathbuf(&named);
1332         if (pathcp)
1333                 FREE(pathcp, M_TEMP);
1334
1335         NFSEXITCODE2(error, nd);
1336         return (error);
1337 }
1338
1339 /*
1340  * nfs remove service
1341  */
1342 APPLESTATIC int
1343 nfsrvd_remove(struct nfsrv_descript *nd, __unused int isdgram,
1344     vnode_t dp, NFSPROC_T *p, struct nfsexstuff *exp)
1345 {
1346         struct nameidata named;
1347         u_int32_t *tl;
1348         int error = 0, dirfor_ret = 1, diraft_ret = 1;
1349         vnode_t dirp = NULL;
1350         struct nfsvattr dirfor, diraft;
1351         char *bufp;
1352         u_long *hashp;
1353
1354         if (nd->nd_repstat) {
1355                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1356                 goto out;
1357         }
1358         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, DELETE,
1359             LOCKPARENT | LOCKLEAF);
1360         nfsvno_setpathbuf(&named, &bufp, &hashp);
1361         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
1362         if (error) {
1363                 vput(dp);
1364                 nfsvno_relpathbuf(&named);
1365                 goto out;
1366         }
1367         if (!nd->nd_repstat) {
1368                 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, p, &dirp);
1369         } else {
1370                 vput(dp);
1371                 nfsvno_relpathbuf(&named);
1372         }
1373         if (dirp) {
1374                 if (!(nd->nd_flag & ND_NFSV2)) {
1375                         dirfor_ret = nfsvno_getattr(dirp, &dirfor,
1376                             nd->nd_cred, p, 0);
1377                 } else {
1378                         vrele(dirp);
1379                         dirp = NULL;
1380                 }
1381         }
1382         if (!nd->nd_repstat) {
1383                 if (nd->nd_flag & ND_NFSV4) {
1384                         if (vnode_vtype(named.ni_vp) == VDIR)
1385                                 nd->nd_repstat = nfsvno_rmdirsub(&named, 1,
1386                                     nd->nd_cred, p, exp);
1387                         else
1388                                 nd->nd_repstat = nfsvno_removesub(&named, 1,
1389                                     nd->nd_cred, p, exp);
1390                 } else if (nd->nd_procnum == NFSPROC_RMDIR) {
1391                         nd->nd_repstat = nfsvno_rmdirsub(&named, 0,
1392                             nd->nd_cred, p, exp);
1393                 } else {
1394                         nd->nd_repstat = nfsvno_removesub(&named, 0,
1395                             nd->nd_cred, p, exp);
1396                 }
1397         }
1398         if (!(nd->nd_flag & ND_NFSV2)) {
1399                 if (dirp) {
1400                         diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred,
1401                             p, 0);
1402                         vrele(dirp);
1403                 }
1404                 if (nd->nd_flag & ND_NFSV3) {
1405                         nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
1406                             &diraft);
1407                 } else if (!nd->nd_repstat) {
1408                         NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
1409                         *tl++ = newnfs_false;
1410                         txdr_hyper(dirfor.na_filerev, tl);
1411                         tl += 2;
1412                         txdr_hyper(diraft.na_filerev, tl);
1413                 }
1414         }
1415
1416 out:
1417         NFSEXITCODE2(error, nd);
1418         return (error);
1419 }
1420
1421 /*
1422  * nfs rename service
1423  */
1424 APPLESTATIC int
1425 nfsrvd_rename(struct nfsrv_descript *nd, int isdgram,
1426     vnode_t dp, vnode_t todp, NFSPROC_T *p, struct nfsexstuff *exp,
1427     struct nfsexstuff *toexp)
1428 {
1429         u_int32_t *tl;
1430         int error = 0, fdirfor_ret = 1, fdiraft_ret = 1;
1431         int tdirfor_ret = 1, tdiraft_ret = 1;
1432         struct nameidata fromnd, tond;
1433         vnode_t fdirp = NULL, tdirp = NULL, tdp = NULL;
1434         struct nfsvattr fdirfor, fdiraft, tdirfor, tdiraft;
1435         struct nfsexstuff tnes;
1436         struct nfsrvfh tfh;
1437         char *bufp, *tbufp = NULL;
1438         u_long *hashp;
1439         fhandle_t fh;
1440
1441         if (nd->nd_repstat) {
1442                 nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft);
1443                 nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft);
1444                 goto out;
1445         }
1446         if (!(nd->nd_flag & ND_NFSV2))
1447                 fdirfor_ret = nfsvno_getattr(dp, &fdirfor, nd->nd_cred, p, 1);
1448         tond.ni_cnd.cn_nameiop = 0;
1449         tond.ni_startdir = NULL;
1450         NFSNAMEICNDSET(&fromnd.ni_cnd, nd->nd_cred, DELETE, WANTPARENT | SAVESTART);
1451         nfsvno_setpathbuf(&fromnd, &bufp, &hashp);
1452         error = nfsrv_parsename(nd, bufp, hashp, &fromnd.ni_pathlen);
1453         if (error) {
1454                 vput(dp);
1455                 if (todp)
1456                         vrele(todp);
1457                 nfsvno_relpathbuf(&fromnd);
1458                 goto out;
1459         }
1460         /*
1461          * Unlock dp in this code section, so it is unlocked before
1462          * tdp gets locked. This avoids a potential LOR if tdp is the
1463          * parent directory of dp.
1464          */
1465         if (nd->nd_flag & ND_NFSV4) {
1466                 tdp = todp;
1467                 tnes = *toexp;
1468                 if (dp != tdp) {
1469                         NFSVOPUNLOCK(dp, 0);
1470                         tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd->nd_cred,
1471                             p, 0);      /* Might lock tdp. */
1472                 } else {
1473                         tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd->nd_cred,
1474                             p, 1);
1475                         NFSVOPUNLOCK(dp, 0);
1476                 }
1477         } else {
1478                 tfh.nfsrvfh_len = 0;
1479                 error = nfsrv_mtofh(nd, &tfh);
1480                 if (error == 0)
1481                         error = nfsvno_getfh(dp, &fh, p);
1482                 if (error) {
1483                         vput(dp);
1484                         /* todp is always NULL except NFSv4 */
1485                         nfsvno_relpathbuf(&fromnd);
1486                         goto out;
1487                 }
1488
1489                 /* If this is the same file handle, just VREF() the vnode. */
1490                 if (tfh.nfsrvfh_len == NFSX_MYFH &&
1491                     !NFSBCMP(tfh.nfsrvfh_data, &fh, NFSX_MYFH)) {
1492                         VREF(dp);
1493                         tdp = dp;
1494                         tnes = *exp;
1495                         tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd->nd_cred,
1496                             p, 1);
1497                         NFSVOPUNLOCK(dp, 0);
1498                 } else {
1499                         NFSVOPUNLOCK(dp, 0);
1500                         nd->nd_cred->cr_uid = nd->nd_saveduid;
1501                         nfsd_fhtovp(nd, &tfh, LK_EXCLUSIVE, &tdp, &tnes, NULL,
1502                             0, p);      /* Locks tdp. */
1503                         if (tdp) {
1504                                 tdirfor_ret = nfsvno_getattr(tdp, &tdirfor,
1505                                     nd->nd_cred, p, 1);
1506                                 NFSVOPUNLOCK(tdp, 0);
1507                         }
1508                 }
1509         }
1510         NFSNAMEICNDSET(&tond.ni_cnd, nd->nd_cred, RENAME, LOCKPARENT | LOCKLEAF | NOCACHE | SAVESTART);
1511         nfsvno_setpathbuf(&tond, &tbufp, &hashp);
1512         if (!nd->nd_repstat) {
1513                 error = nfsrv_parsename(nd, tbufp, hashp, &tond.ni_pathlen);
1514                 if (error) {
1515                         if (tdp)
1516                                 vrele(tdp);
1517                         vrele(dp);
1518                         nfsvno_relpathbuf(&fromnd);
1519                         nfsvno_relpathbuf(&tond);
1520                         goto out;
1521                 }
1522         }
1523         if (nd->nd_repstat) {
1524                 if (nd->nd_flag & ND_NFSV3) {
1525                         nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret,
1526                             &fdiraft);
1527                         nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret,
1528                             &tdiraft);
1529                 }
1530                 if (tdp)
1531                         vrele(tdp);
1532                 vrele(dp);
1533                 nfsvno_relpathbuf(&fromnd);
1534                 nfsvno_relpathbuf(&tond);
1535                 goto out;
1536         }
1537
1538         /*
1539          * Done parsing, now down to business.
1540          */
1541         nd->nd_repstat = nfsvno_namei(nd, &fromnd, dp, 0, exp, p, &fdirp);
1542         if (nd->nd_repstat) {
1543                 if (nd->nd_flag & ND_NFSV3) {
1544                         nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret,
1545                             &fdiraft);
1546                         nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret,
1547                             &tdiraft);
1548                 }
1549                 if (fdirp)
1550                         vrele(fdirp);
1551                 if (tdp)
1552                         vrele(tdp);
1553                 nfsvno_relpathbuf(&tond);
1554                 goto out;
1555         }
1556         if (vnode_vtype(fromnd.ni_vp) == VDIR)
1557                 tond.ni_cnd.cn_flags |= WILLBEDIR;
1558         nd->nd_repstat = nfsvno_namei(nd, &tond, tdp, 0, &tnes, p, &tdirp);
1559         nd->nd_repstat = nfsvno_rename(&fromnd, &tond, nd->nd_repstat,
1560             nd->nd_flag, nd->nd_cred, p);
1561         if (fdirp)
1562                 fdiraft_ret = nfsvno_getattr(fdirp, &fdiraft, nd->nd_cred, p,
1563                     0);
1564         if (tdirp)
1565                 tdiraft_ret = nfsvno_getattr(tdirp, &tdiraft, nd->nd_cred, p,
1566                     0);
1567         if (fdirp)
1568                 vrele(fdirp);
1569         if (tdirp)
1570                 vrele(tdirp);
1571         if (nd->nd_flag & ND_NFSV3) {
1572                 nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft);
1573                 nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft);
1574         } else if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
1575                 NFSM_BUILD(tl, u_int32_t *, 10 * NFSX_UNSIGNED);
1576                 *tl++ = newnfs_false;
1577                 txdr_hyper(fdirfor.na_filerev, tl);
1578                 tl += 2;
1579                 txdr_hyper(fdiraft.na_filerev, tl);
1580                 tl += 2;
1581                 *tl++ = newnfs_false;
1582                 txdr_hyper(tdirfor.na_filerev, tl);
1583                 tl += 2;
1584                 txdr_hyper(tdiraft.na_filerev, tl);
1585         }
1586
1587 out:
1588         NFSEXITCODE2(error, nd);
1589         return (error);
1590 }
1591
1592 /*
1593  * nfs link service
1594  */
1595 APPLESTATIC int
1596 nfsrvd_link(struct nfsrv_descript *nd, int isdgram,
1597     vnode_t vp, vnode_t tovp, NFSPROC_T *p, struct nfsexstuff *exp,
1598     struct nfsexstuff *toexp)
1599 {
1600         struct nameidata named;
1601         u_int32_t *tl;
1602         int error = 0, dirfor_ret = 1, diraft_ret = 1, getret = 1;
1603         vnode_t dirp = NULL, dp = NULL;
1604         struct nfsvattr dirfor, diraft, at;
1605         struct nfsexstuff tnes;
1606         struct nfsrvfh dfh;
1607         char *bufp;
1608         u_long *hashp;
1609
1610         if (nd->nd_repstat) {
1611                 nfsrv_postopattr(nd, getret, &at);
1612                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1613                 goto out;
1614         }
1615         NFSVOPUNLOCK(vp, 0);
1616         if (vnode_vtype(vp) == VDIR) {
1617                 if (nd->nd_flag & ND_NFSV4)
1618                         nd->nd_repstat = NFSERR_ISDIR;
1619                 else
1620                         nd->nd_repstat = NFSERR_INVAL;
1621                 if (tovp)
1622                         vrele(tovp);
1623         }
1624         if (!nd->nd_repstat) {
1625                 if (nd->nd_flag & ND_NFSV4) {
1626                         dp = tovp;
1627                         tnes = *toexp;
1628                 } else {
1629                         error = nfsrv_mtofh(nd, &dfh);
1630                         if (error) {
1631                                 vrele(vp);
1632                                 /* tovp is always NULL unless NFSv4 */
1633                                 goto out;
1634                         }
1635                         nfsd_fhtovp(nd, &dfh, LK_EXCLUSIVE, &dp, &tnes, NULL, 0,
1636                             p);
1637                         if (dp)
1638                                 NFSVOPUNLOCK(dp, 0);
1639                 }
1640         }
1641         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
1642             LOCKPARENT | SAVENAME);
1643         if (!nd->nd_repstat) {
1644                 nfsvno_setpathbuf(&named, &bufp, &hashp);
1645                 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
1646                 if (error) {
1647                         vrele(vp);
1648                         if (dp)
1649                                 vrele(dp);
1650                         nfsvno_relpathbuf(&named);
1651                         goto out;
1652                 }
1653                 if (!nd->nd_repstat) {
1654                         nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, &tnes,
1655                             p, &dirp);
1656                 } else {
1657                         if (dp)
1658                                 vrele(dp);
1659                         nfsvno_relpathbuf(&named);
1660                 }
1661         }
1662         if (dirp) {
1663                 if (nd->nd_flag & ND_NFSV2) {
1664                         vrele(dirp);
1665                         dirp = NULL;
1666                 } else {
1667                         dirfor_ret = nfsvno_getattr(dirp, &dirfor,
1668                             nd->nd_cred, p, 0);
1669                 }
1670         }
1671         if (!nd->nd_repstat)
1672                 nd->nd_repstat = nfsvno_link(&named, vp, nd->nd_cred, p, exp);
1673         if (nd->nd_flag & ND_NFSV3)
1674                 getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 0);
1675         if (dirp) {
1676                 diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p, 0);
1677                 vrele(dirp);
1678         }
1679         vrele(vp);
1680         if (nd->nd_flag & ND_NFSV3) {
1681                 nfsrv_postopattr(nd, getret, &at);
1682                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1683         } else if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
1684                 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
1685                 *tl++ = newnfs_false;
1686                 txdr_hyper(dirfor.na_filerev, tl);
1687                 tl += 2;
1688                 txdr_hyper(diraft.na_filerev, tl);
1689         }
1690
1691 out:
1692         NFSEXITCODE2(error, nd);
1693         return (error);
1694 }
1695
1696 /*
1697  * nfs symbolic link service
1698  */
1699 APPLESTATIC int
1700 nfsrvd_symlink(struct nfsrv_descript *nd, __unused int isdgram,
1701     vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
1702     struct nfsexstuff *exp)
1703 {
1704         struct nfsvattr nva, dirfor, diraft;
1705         struct nameidata named;
1706         int error = 0, dirfor_ret = 1, diraft_ret = 1, pathlen;
1707         vnode_t dirp = NULL;
1708         char *bufp, *pathcp = NULL;
1709         u_long *hashp;
1710
1711         if (nd->nd_repstat) {
1712                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1713                 goto out;
1714         }
1715         if (vpp)
1716                 *vpp = NULL;
1717         NFSVNO_ATTRINIT(&nva);
1718         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
1719             LOCKPARENT | SAVESTART);
1720         nfsvno_setpathbuf(&named, &bufp, &hashp);
1721         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
1722         if (!error && !nd->nd_repstat)
1723                 error = nfsvno_getsymlink(nd, &nva, p, &pathcp, &pathlen);
1724         if (error) {
1725                 vrele(dp);
1726                 nfsvno_relpathbuf(&named);
1727                 goto out;
1728         }
1729         if (!nd->nd_repstat) {
1730                 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
1731         } else {
1732                 vrele(dp);
1733                 nfsvno_relpathbuf(&named);
1734         }
1735         if (dirp != NULL && !(nd->nd_flag & ND_NFSV3)) {
1736                 vrele(dirp);
1737                 dirp = NULL;
1738         }
1739
1740         /*
1741          * And call nfsrvd_symlinksub() to do the common code. It will
1742          * return EBADRPC upon a parsing error, 0 otherwise.
1743          */
1744         if (!nd->nd_repstat) {
1745                 if (dirp != NULL)
1746                         dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred,
1747                             p, 0);
1748                 nfsrvd_symlinksub(nd, &named, &nva, fhp, vpp, dirp,
1749                     &dirfor, &diraft, &diraft_ret, NULL, NULL, p, exp,
1750                     pathcp, pathlen);
1751         } else if (dirp != NULL) {
1752                 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred, p, 0);
1753                 vrele(dirp);
1754         }
1755         if (pathcp)
1756                 FREE(pathcp, M_TEMP);
1757
1758         if (nd->nd_flag & ND_NFSV3) {
1759                 if (!nd->nd_repstat) {
1760                         (void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 1);
1761                         nfsrv_postopattr(nd, 0, &nva);
1762                 }
1763                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1764         }
1765
1766 out:
1767         NFSEXITCODE2(error, nd);
1768         return (error);
1769 }
1770
1771 /*
1772  * Common code for creating a symbolic link.
1773  */
1774 static void
1775 nfsrvd_symlinksub(struct nfsrv_descript *nd, struct nameidata *ndp,
1776     struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
1777     vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
1778     int *diraft_retp, nfsattrbit_t *attrbitp,
1779     NFSACL_T *aclp, NFSPROC_T *p, struct nfsexstuff *exp, char *pathcp,
1780     int pathlen)
1781 {
1782         u_int32_t *tl;
1783
1784         nd->nd_repstat = nfsvno_symlink(ndp, nvap, pathcp, pathlen,
1785             !(nd->nd_flag & ND_NFSV2), nd->nd_saveduid, nd->nd_cred, p, exp);
1786         if (!nd->nd_repstat && !(nd->nd_flag & ND_NFSV2)) {
1787                 nfsrv_fixattr(nd, ndp->ni_vp, nvap, aclp, p, attrbitp, exp);
1788                 if (nd->nd_flag & ND_NFSV3) {
1789                         nd->nd_repstat = nfsvno_getfh(ndp->ni_vp, fhp, p);
1790                         if (!nd->nd_repstat)
1791                                 nd->nd_repstat = nfsvno_getattr(ndp->ni_vp,
1792                                     nvap, nd->nd_cred, p, 1);
1793                 }
1794                 if (vpp != NULL && nd->nd_repstat == 0) {
1795                         NFSVOPUNLOCK(ndp->ni_vp, 0);
1796                         *vpp = ndp->ni_vp;
1797                 } else
1798                         vput(ndp->ni_vp);
1799         }
1800         if (dirp) {
1801                 *diraft_retp = nfsvno_getattr(dirp, diraftp, nd->nd_cred, p, 0);
1802                 vrele(dirp);
1803         }
1804         if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
1805                 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
1806                 *tl++ = newnfs_false;
1807                 txdr_hyper(dirforp->na_filerev, tl);
1808                 tl += 2;
1809                 txdr_hyper(diraftp->na_filerev, tl);
1810                 (void) nfsrv_putattrbit(nd, attrbitp);
1811         }
1812
1813         NFSEXITCODE2(0, nd);
1814 }
1815
1816 /*
1817  * nfs mkdir service
1818  */
1819 APPLESTATIC int
1820 nfsrvd_mkdir(struct nfsrv_descript *nd, __unused int isdgram,
1821     vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
1822     struct nfsexstuff *exp)
1823 {
1824         struct nfsvattr nva, dirfor, diraft;
1825         struct nameidata named;
1826         u_int32_t *tl;
1827         int error = 0, dirfor_ret = 1, diraft_ret = 1;
1828         vnode_t dirp = NULL;
1829         char *bufp;
1830         u_long *hashp;
1831
1832         if (nd->nd_repstat) {
1833                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1834                 goto out;
1835         }
1836         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
1837             LOCKPARENT | SAVENAME);
1838         nfsvno_setpathbuf(&named, &bufp, &hashp);
1839         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
1840         if (error)
1841                 goto nfsmout;
1842         if (!nd->nd_repstat) {
1843                 NFSVNO_ATTRINIT(&nva);
1844                 if (nd->nd_flag & ND_NFSV3) {
1845                         error = nfsrv_sattr(nd, &nva, NULL, NULL, p);
1846                         if (error)
1847                                 goto nfsmout;
1848                 } else {
1849                         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1850                         nva.na_mode = nfstov_mode(*tl++);
1851                 }
1852         }
1853         if (!nd->nd_repstat) {
1854                 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
1855         } else {
1856                 vrele(dp);
1857                 nfsvno_relpathbuf(&named);
1858         }
1859         if (dirp != NULL && !(nd->nd_flag & ND_NFSV3)) {
1860                 vrele(dirp);
1861                 dirp = NULL;
1862         }
1863         if (nd->nd_repstat) {
1864                 if (dirp != NULL) {
1865                         dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred,
1866                             p, 0);
1867                         vrele(dirp);
1868                 }
1869                 if (nd->nd_flag & ND_NFSV3)
1870                         nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
1871                             &diraft);
1872                 goto out;
1873         }
1874         if (dirp != NULL)
1875                 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred, p, 0);
1876
1877         /*
1878          * Call nfsrvd_mkdirsub() for the code common to V4 as well.
1879          */
1880         nfsrvd_mkdirsub(nd, &named, &nva, fhp, vpp, dirp, &dirfor, &diraft,
1881             &diraft_ret, NULL, NULL, p, exp);
1882
1883         if (nd->nd_flag & ND_NFSV3) {
1884                 if (!nd->nd_repstat) {
1885                         (void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 1);
1886                         nfsrv_postopattr(nd, 0, &nva);
1887                 }
1888                 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
1889         } else if (!nd->nd_repstat) {
1890                 (void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
1891                 nfsrv_fillattr(nd, &nva);
1892         }
1893
1894 out:
1895         NFSEXITCODE2(0, nd);
1896         return (0);
1897 nfsmout:
1898         vrele(dp);
1899         nfsvno_relpathbuf(&named);
1900         NFSEXITCODE2(error, nd);
1901         return (error);
1902 }
1903
1904 /*
1905  * Code common to mkdir for V2,3 and 4.
1906  */
1907 static void
1908 nfsrvd_mkdirsub(struct nfsrv_descript *nd, struct nameidata *ndp,
1909     struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
1910     vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
1911     int *diraft_retp, nfsattrbit_t *attrbitp, NFSACL_T *aclp,
1912     NFSPROC_T *p, struct nfsexstuff *exp)
1913 {
1914         vnode_t vp;
1915         u_int32_t *tl;
1916
1917         NFSVNO_SETATTRVAL(nvap, type, VDIR);
1918         nd->nd_repstat = nfsvno_mkdir(ndp, nvap, nd->nd_saveduid,
1919             nd->nd_cred, p, exp);
1920         if (!nd->nd_repstat) {
1921                 vp = ndp->ni_vp;
1922                 nfsrv_fixattr(nd, vp, nvap, aclp, p, attrbitp, exp);
1923                 nd->nd_repstat = nfsvno_getfh(vp, fhp, p);
1924                 if (!(nd->nd_flag & ND_NFSV4) && !nd->nd_repstat)
1925                         nd->nd_repstat = nfsvno_getattr(vp, nvap, nd->nd_cred,
1926                             p, 1);
1927                 if (vpp && !nd->nd_repstat) {
1928                         NFSVOPUNLOCK(vp, 0);
1929                         *vpp = vp;
1930                 } else {
1931                         vput(vp);
1932                 }
1933         }
1934         if (dirp) {
1935                 *diraft_retp = nfsvno_getattr(dirp, diraftp, nd->nd_cred, p, 0);
1936                 vrele(dirp);
1937         }
1938         if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
1939                 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
1940                 *tl++ = newnfs_false;
1941                 txdr_hyper(dirforp->na_filerev, tl);
1942                 tl += 2;
1943                 txdr_hyper(diraftp->na_filerev, tl);
1944                 (void) nfsrv_putattrbit(nd, attrbitp);
1945         }
1946
1947         NFSEXITCODE2(0, nd);
1948 }
1949
1950 /*
1951  * nfs commit service
1952  */
1953 APPLESTATIC int
1954 nfsrvd_commit(struct nfsrv_descript *nd, __unused int isdgram,
1955     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
1956 {
1957         struct nfsvattr bfor, aft;
1958         u_int32_t *tl;
1959         int error = 0, for_ret = 1, aft_ret = 1, cnt;
1960         u_int64_t off;
1961
1962         if (nd->nd_repstat) {
1963                 nfsrv_wcc(nd, for_ret, &bfor, aft_ret, &aft);
1964                 goto out;
1965         }
1966         NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
1967         /*
1968          * XXX At this time VOP_FSYNC() does not accept offset and byte
1969          * count parameters, so these arguments are useless (someday maybe).
1970          */
1971         off = fxdr_hyper(tl);
1972         tl += 2;
1973         cnt = fxdr_unsigned(int, *tl);
1974         if (nd->nd_flag & ND_NFSV3)
1975                 for_ret = nfsvno_getattr(vp, &bfor, nd->nd_cred, p, 1);
1976         nd->nd_repstat = nfsvno_fsync(vp, off, cnt, nd->nd_cred, p);
1977         if (nd->nd_flag & ND_NFSV3) {
1978                 aft_ret = nfsvno_getattr(vp, &aft, nd->nd_cred, p, 1);
1979                 nfsrv_wcc(nd, for_ret, &bfor, aft_ret, &aft);
1980         }
1981         vput(vp);
1982         if (!nd->nd_repstat) {
1983                 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF);
1984                 *tl++ = txdr_unsigned(nfsboottime.tv_sec);
1985                 *tl = txdr_unsigned(nfsboottime.tv_usec);
1986         }
1987
1988 out:
1989         NFSEXITCODE2(0, nd);
1990         return (0);
1991 nfsmout:
1992         vput(vp);
1993         NFSEXITCODE2(error, nd);
1994         return (error);
1995 }
1996
1997 /*
1998  * nfs statfs service
1999  */
2000 APPLESTATIC int
2001 nfsrvd_statfs(struct nfsrv_descript *nd, __unused int isdgram,
2002     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
2003 {
2004         struct statfs *sf;
2005         u_int32_t *tl;
2006         int getret = 1;
2007         struct nfsvattr at;
2008         struct statfs sfs;
2009         u_quad_t tval;
2010
2011         if (nd->nd_repstat) {
2012                 nfsrv_postopattr(nd, getret, &at);
2013                 goto out;
2014         }
2015         sf = &sfs;
2016         nd->nd_repstat = nfsvno_statfs(vp, sf);
2017         getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 1);
2018         vput(vp);
2019         if (nd->nd_flag & ND_NFSV3)
2020                 nfsrv_postopattr(nd, getret, &at);
2021         if (nd->nd_repstat)
2022                 goto out;
2023         if (nd->nd_flag & ND_NFSV2) {
2024                 NFSM_BUILD(tl, u_int32_t *, NFSX_V2STATFS);
2025                 *tl++ = txdr_unsigned(NFS_V2MAXDATA);
2026                 *tl++ = txdr_unsigned(sf->f_bsize);
2027                 *tl++ = txdr_unsigned(sf->f_blocks);
2028                 *tl++ = txdr_unsigned(sf->f_bfree);
2029                 *tl = txdr_unsigned(sf->f_bavail);
2030         } else {
2031                 NFSM_BUILD(tl, u_int32_t *, NFSX_V3STATFS);
2032                 tval = (u_quad_t)sf->f_blocks;
2033                 tval *= (u_quad_t)sf->f_bsize;
2034                 txdr_hyper(tval, tl); tl += 2;
2035                 tval = (u_quad_t)sf->f_bfree;
2036                 tval *= (u_quad_t)sf->f_bsize;
2037                 txdr_hyper(tval, tl); tl += 2;
2038                 tval = (u_quad_t)sf->f_bavail;
2039                 tval *= (u_quad_t)sf->f_bsize;
2040                 txdr_hyper(tval, tl); tl += 2;
2041                 tval = (u_quad_t)sf->f_files;
2042                 txdr_hyper(tval, tl); tl += 2;
2043                 tval = (u_quad_t)sf->f_ffree;
2044                 txdr_hyper(tval, tl); tl += 2;
2045                 tval = (u_quad_t)sf->f_ffree;
2046                 txdr_hyper(tval, tl); tl += 2;
2047                 *tl = 0;
2048         }
2049
2050 out:
2051         NFSEXITCODE2(0, nd);
2052         return (0);
2053 }
2054
2055 /*
2056  * nfs fsinfo service
2057  */
2058 APPLESTATIC int
2059 nfsrvd_fsinfo(struct nfsrv_descript *nd, int isdgram,
2060     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
2061 {
2062         u_int32_t *tl;
2063         struct nfsfsinfo fs;
2064         int getret = 1;
2065         struct nfsvattr at;
2066
2067         if (nd->nd_repstat) {
2068                 nfsrv_postopattr(nd, getret, &at);
2069                 goto out;
2070         }
2071         getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 1);
2072         nfsvno_getfs(&fs, isdgram);
2073         vput(vp);
2074         nfsrv_postopattr(nd, getret, &at);
2075         NFSM_BUILD(tl, u_int32_t *, NFSX_V3FSINFO);
2076         *tl++ = txdr_unsigned(fs.fs_rtmax);
2077         *tl++ = txdr_unsigned(fs.fs_rtpref);
2078         *tl++ = txdr_unsigned(fs.fs_rtmult);
2079         *tl++ = txdr_unsigned(fs.fs_wtmax);
2080         *tl++ = txdr_unsigned(fs.fs_wtpref);
2081         *tl++ = txdr_unsigned(fs.fs_wtmult);
2082         *tl++ = txdr_unsigned(fs.fs_dtpref);
2083         txdr_hyper(fs.fs_maxfilesize, tl);
2084         tl += 2;
2085         txdr_nfsv3time(&fs.fs_timedelta, tl);
2086         tl += 2;
2087         *tl = txdr_unsigned(fs.fs_properties);
2088
2089 out:
2090         NFSEXITCODE2(0, nd);
2091         return (0);
2092 }
2093
2094 /*
2095  * nfs pathconf service
2096  */
2097 APPLESTATIC int
2098 nfsrvd_pathconf(struct nfsrv_descript *nd, __unused int isdgram,
2099     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
2100 {
2101         struct nfsv3_pathconf *pc;
2102         int getret = 1;
2103         register_t linkmax, namemax, chownres, notrunc;
2104         struct nfsvattr at;
2105
2106         if (nd->nd_repstat) {
2107                 nfsrv_postopattr(nd, getret, &at);
2108                 goto out;
2109         }
2110         nd->nd_repstat = nfsvno_pathconf(vp, _PC_LINK_MAX, &linkmax,
2111             nd->nd_cred, p);
2112         if (!nd->nd_repstat)
2113                 nd->nd_repstat = nfsvno_pathconf(vp, _PC_NAME_MAX, &namemax,
2114                     nd->nd_cred, p);
2115         if (!nd->nd_repstat)
2116                 nd->nd_repstat=nfsvno_pathconf(vp, _PC_CHOWN_RESTRICTED,
2117                     &chownres, nd->nd_cred, p);
2118         if (!nd->nd_repstat)
2119                 nd->nd_repstat = nfsvno_pathconf(vp, _PC_NO_TRUNC, &notrunc,
2120                     nd->nd_cred, p);
2121         getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 1);
2122         vput(vp);
2123         nfsrv_postopattr(nd, getret, &at);
2124         if (!nd->nd_repstat) {
2125                 NFSM_BUILD(pc, struct nfsv3_pathconf *, NFSX_V3PATHCONF);
2126                 pc->pc_linkmax = txdr_unsigned(linkmax);
2127                 pc->pc_namemax = txdr_unsigned(namemax);
2128                 pc->pc_notrunc = txdr_unsigned(notrunc);
2129                 pc->pc_chownrestricted = txdr_unsigned(chownres);
2130
2131                 /*
2132                  * These should probably be supported by VOP_PATHCONF(), but
2133                  * until msdosfs is exportable (why would you want to?), the
2134                  * Unix defaults should be ok.
2135                  */
2136                 pc->pc_caseinsensitive = newnfs_false;
2137                 pc->pc_casepreserving = newnfs_true;
2138         }
2139
2140 out:
2141         NFSEXITCODE2(0, nd);
2142         return (0);
2143 }
2144
2145 /*
2146  * nfsv4 lock service
2147  */
2148 APPLESTATIC int
2149 nfsrvd_lock(struct nfsrv_descript *nd, __unused int isdgram,
2150     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
2151 {
2152         u_int32_t *tl;
2153         int i;
2154         struct nfsstate *stp = NULL;
2155         struct nfslock *lop;
2156         struct nfslockconflict cf;
2157         int error = 0;
2158         u_short flags = NFSLCK_LOCK, lflags;
2159         u_int64_t offset, len;
2160         nfsv4stateid_t stateid;
2161         nfsquad_t clientid;
2162
2163         NFSM_DISSECT(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
2164         i = fxdr_unsigned(int, *tl++);
2165         switch (i) {
2166         case NFSV4LOCKT_READW:
2167                 flags |= NFSLCK_BLOCKING;
2168         case NFSV4LOCKT_READ:
2169                 lflags = NFSLCK_READ;
2170                 break;
2171         case NFSV4LOCKT_WRITEW:
2172                 flags |= NFSLCK_BLOCKING;
2173         case NFSV4LOCKT_WRITE:
2174                 lflags = NFSLCK_WRITE;
2175                 break;
2176         default:
2177                 nd->nd_repstat = NFSERR_BADXDR;
2178                 goto nfsmout;
2179         };
2180         if (*tl++ == newnfs_true)
2181                 flags |= NFSLCK_RECLAIM;
2182         offset = fxdr_hyper(tl);
2183         tl += 2;
2184         len = fxdr_hyper(tl);
2185         tl += 2;
2186         if (*tl == newnfs_true)
2187                 flags |= NFSLCK_OPENTOLOCK;
2188         if (flags & NFSLCK_OPENTOLOCK) {
2189                 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED + NFSX_STATEID);
2190                 i = fxdr_unsigned(int, *(tl+4+(NFSX_STATEID / NFSX_UNSIGNED)));
2191                 if (i <= 0 || i > NFSV4_OPAQUELIMIT) {
2192                         nd->nd_repstat = NFSERR_BADXDR;
2193                         goto nfsmout;
2194                 }
2195                 MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + i,
2196                         M_NFSDSTATE, M_WAITOK);
2197                 stp->ls_ownerlen = i;
2198                 stp->ls_op = nd->nd_rp;
2199                 stp->ls_seq = fxdr_unsigned(int, *tl++);
2200                 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
2201                 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
2202                         NFSX_STATEIDOTHER);
2203                 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
2204                 stp->ls_opentolockseq = fxdr_unsigned(int, *tl++);
2205                 clientid.lval[0] = *tl++;
2206                 clientid.lval[1] = *tl++;
2207                 if (nd->nd_flag & ND_IMPLIEDCLID) {
2208                         if (nd->nd_clientid.qval != clientid.qval)
2209                                 printf("EEK! multiple clids\n");
2210                 } else {
2211                         nd->nd_flag |= ND_IMPLIEDCLID;
2212                         nd->nd_clientid.qval = clientid.qval;
2213                 }
2214                 error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen);
2215                 if (error)
2216                         goto nfsmout;
2217         } else {
2218                 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED);
2219                 MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate),
2220                         M_NFSDSTATE, M_WAITOK);
2221                 stp->ls_ownerlen = 0;
2222                 stp->ls_op = nd->nd_rp;
2223                 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
2224                 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
2225                         NFSX_STATEIDOTHER);
2226                 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
2227                 stp->ls_seq = fxdr_unsigned(int, *tl);
2228                 clientid.lval[0] = stp->ls_stateid.other[0];
2229                 clientid.lval[1] = stp->ls_stateid.other[1];
2230                 if (nd->nd_flag & ND_IMPLIEDCLID) {
2231                         if (nd->nd_clientid.qval != clientid.qval)
2232                                 printf("EEK! multiple clids\n");
2233                 } else {
2234                         nd->nd_flag |= ND_IMPLIEDCLID;
2235                         nd->nd_clientid.qval = clientid.qval;
2236                 }
2237         }
2238         MALLOC(lop, struct nfslock *, sizeof (struct nfslock),
2239                 M_NFSDLOCK, M_WAITOK);
2240         lop->lo_first = offset;
2241         if (len == NFS64BITSSET) {
2242                 lop->lo_end = NFS64BITSSET;
2243         } else {
2244                 lop->lo_end = offset + len;
2245                 if (lop->lo_end <= lop->lo_first)
2246                         nd->nd_repstat = NFSERR_INVAL;
2247         }
2248         lop->lo_flags = lflags;
2249         stp->ls_flags = flags;
2250         stp->ls_uid = nd->nd_cred->cr_uid;
2251
2252         /*
2253          * Do basic access checking.
2254          */
2255         if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
2256             if (vnode_vtype(vp) == VDIR)
2257                 nd->nd_repstat = NFSERR_ISDIR;
2258             else
2259                 nd->nd_repstat = NFSERR_INVAL;
2260         }
2261         if (!nd->nd_repstat) {
2262             if (lflags & NFSLCK_WRITE) {
2263                 nd->nd_repstat = nfsvno_accchk(vp, VWRITE,
2264                     nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
2265                     NFSACCCHK_VPISLOCKED, NULL);
2266             } else {
2267                 nd->nd_repstat = nfsvno_accchk(vp, VREAD,
2268                     nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
2269                     NFSACCCHK_VPISLOCKED, NULL);
2270                 if (nd->nd_repstat)
2271                     nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
2272                         nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
2273                         NFSACCCHK_VPISLOCKED, NULL);
2274             }
2275         }
2276
2277         /*
2278          * We call nfsrv_lockctrl() even if nd_repstat set, so that the
2279          * seqid# gets updated. nfsrv_lockctrl() will return the value
2280          * of nd_repstat, if it gets that far.
2281          */
2282         nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, &cf, clientid,
2283                 &stateid, exp, nd, p);
2284         if (lop)
2285                 FREE((caddr_t)lop, M_NFSDLOCK);
2286         if (stp)
2287                 FREE((caddr_t)stp, M_NFSDSTATE);
2288         if (!nd->nd_repstat) {
2289                 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
2290                 *tl++ = txdr_unsigned(stateid.seqid);
2291                 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
2292         } else if (nd->nd_repstat == NFSERR_DENIED) {
2293                 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
2294                 txdr_hyper(cf.cl_first, tl);
2295                 tl += 2;
2296                 if (cf.cl_end == NFS64BITSSET)
2297                         len = NFS64BITSSET;
2298                 else
2299                         len = cf.cl_end - cf.cl_first;
2300                 txdr_hyper(len, tl);
2301                 tl += 2;
2302                 if (cf.cl_flags == NFSLCK_WRITE)
2303                         *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE);
2304                 else
2305                         *tl++ = txdr_unsigned(NFSV4LOCKT_READ);
2306                 *tl++ = stateid.other[0];
2307                 *tl = stateid.other[1];
2308                 (void) nfsm_strtom(nd, cf.cl_owner, cf.cl_ownerlen);
2309         }
2310         vput(vp);
2311         NFSEXITCODE2(0, nd);
2312         return (0);
2313 nfsmout:
2314         vput(vp);
2315         if (stp)
2316                 free((caddr_t)stp, M_NFSDSTATE);
2317         NFSEXITCODE2(error, nd);
2318         return (error);
2319 }
2320
2321 /*
2322  * nfsv4 lock test service
2323  */
2324 APPLESTATIC int
2325 nfsrvd_lockt(struct nfsrv_descript *nd, __unused int isdgram,
2326     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
2327 {
2328         u_int32_t *tl;
2329         int i;
2330         struct nfsstate *stp = NULL;
2331         struct nfslock lo, *lop = &lo;
2332         struct nfslockconflict cf;
2333         int error = 0;
2334         nfsv4stateid_t stateid;
2335         nfsquad_t clientid;
2336         u_int64_t len;
2337
2338         NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED);
2339         i = fxdr_unsigned(int, *(tl + 7));
2340         if (i <= 0 || i > NFSV4_OPAQUELIMIT) {
2341                 nd->nd_repstat = NFSERR_BADXDR;
2342                 goto nfsmout;
2343         }
2344         MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + i,
2345             M_NFSDSTATE, M_WAITOK);
2346         stp->ls_ownerlen = i;
2347         stp->ls_op = NULL;
2348         stp->ls_flags = NFSLCK_TEST;
2349         stp->ls_uid = nd->nd_cred->cr_uid;
2350         i = fxdr_unsigned(int, *tl++);
2351         switch (i) {
2352         case NFSV4LOCKT_READW:
2353                 stp->ls_flags |= NFSLCK_BLOCKING;
2354         case NFSV4LOCKT_READ:
2355                 lo.lo_flags = NFSLCK_READ;
2356                 break;
2357         case NFSV4LOCKT_WRITEW:
2358                 stp->ls_flags |= NFSLCK_BLOCKING;
2359         case NFSV4LOCKT_WRITE:
2360                 lo.lo_flags = NFSLCK_WRITE;
2361                 break;
2362         default:
2363                 nd->nd_repstat = NFSERR_BADXDR;
2364                 goto nfsmout;
2365         };
2366         lo.lo_first = fxdr_hyper(tl);
2367         tl += 2;
2368         len = fxdr_hyper(tl);
2369         if (len == NFS64BITSSET) {
2370                 lo.lo_end = NFS64BITSSET;
2371         } else {
2372                 lo.lo_end = lo.lo_first + len;
2373                 if (lo.lo_end <= lo.lo_first)
2374                         nd->nd_repstat = NFSERR_INVAL;
2375         }
2376         tl += 2;
2377         clientid.lval[0] = *tl++;
2378         clientid.lval[1] = *tl;
2379         if (nd->nd_flag & ND_IMPLIEDCLID) {
2380                 if (nd->nd_clientid.qval != clientid.qval)
2381                         printf("EEK! multiple clids\n");
2382         } else {
2383                 nd->nd_flag |= ND_IMPLIEDCLID;
2384                 nd->nd_clientid.qval = clientid.qval;
2385         }
2386         error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen);
2387         if (error)
2388                 goto nfsmout;
2389         if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
2390             if (vnode_vtype(vp) == VDIR)
2391                 nd->nd_repstat = NFSERR_ISDIR;
2392             else
2393                 nd->nd_repstat = NFSERR_INVAL;
2394         }
2395         if (!nd->nd_repstat)
2396           nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, &cf, clientid,
2397             &stateid, exp, nd, p);
2398         if (stp)
2399                 FREE((caddr_t)stp, M_NFSDSTATE);
2400         if (nd->nd_repstat) {
2401             if (nd->nd_repstat == NFSERR_DENIED) {
2402                 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
2403                 txdr_hyper(cf.cl_first, tl);
2404                 tl += 2;
2405                 if (cf.cl_end == NFS64BITSSET)
2406                         len = NFS64BITSSET;
2407                 else
2408                         len = cf.cl_end - cf.cl_first;
2409                 txdr_hyper(len, tl);
2410                 tl += 2;
2411                 if (cf.cl_flags == NFSLCK_WRITE)
2412                         *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE);
2413                 else
2414                         *tl++ = txdr_unsigned(NFSV4LOCKT_READ);
2415                 *tl++ = stp->ls_stateid.other[0];
2416                 *tl = stp->ls_stateid.other[1];
2417                 (void) nfsm_strtom(nd, cf.cl_owner, cf.cl_ownerlen);
2418             }
2419         }
2420         vput(vp);
2421         NFSEXITCODE2(0, nd);
2422         return (0);
2423 nfsmout:
2424         vput(vp);
2425         if (stp)
2426                 free((caddr_t)stp, M_NFSDSTATE);
2427         NFSEXITCODE2(error, nd);
2428         return (error);
2429 }
2430
2431 /*
2432  * nfsv4 unlock service
2433  */
2434 APPLESTATIC int
2435 nfsrvd_locku(struct nfsrv_descript *nd, __unused int isdgram,
2436     vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
2437 {
2438         u_int32_t *tl;
2439         int i;
2440         struct nfsstate *stp;
2441         struct nfslock *lop;
2442         int error = 0;
2443         nfsv4stateid_t stateid;
2444         nfsquad_t clientid;
2445         u_int64_t len;
2446
2447         NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED + NFSX_STATEID);
2448         MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate),
2449             M_NFSDSTATE, M_WAITOK);
2450         MALLOC(lop, struct nfslock *, sizeof (struct nfslock),
2451             M_NFSDLOCK, M_WAITOK);
2452         stp->ls_flags = NFSLCK_UNLOCK;
2453         lop->lo_flags = NFSLCK_UNLOCK;
2454         stp->ls_op = nd->nd_rp;
2455         i = fxdr_unsigned(int, *tl++);
2456         switch (i) {
2457         case NFSV4LOCKT_READW:
2458                 stp->ls_flags |= NFSLCK_BLOCKING;
2459         case NFSV4LOCKT_READ:
2460                 break;
2461         case NFSV4LOCKT_WRITEW:
2462                 stp->ls_flags |= NFSLCK_BLOCKING;
2463         case NFSV4LOCKT_WRITE:
2464                 break;
2465         default:
2466                 nd->nd_repstat = NFSERR_BADXDR;
2467                 free(stp, M_NFSDSTATE);
2468                 free(lop, M_NFSDLOCK);
2469                 goto nfsmout;
2470         };
2471         stp->ls_ownerlen = 0;
2472         stp->ls_uid = nd->nd_cred->cr_uid;
2473         stp->ls_seq = fxdr_unsigned(int, *tl++);
2474         stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
2475         NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
2476             NFSX_STATEIDOTHER);
2477         tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
2478         lop->lo_first = fxdr_hyper(tl);
2479         tl += 2;
2480         len = fxdr_hyper(tl);
2481         if (len == NFS64BITSSET) {
2482                 lop->lo_end = NFS64BITSSET;
2483         } else {
2484                 lop->lo_end = lop->lo_first + len;
2485                 if (lop->lo_end <= lop->lo_first)
2486                         nd->nd_repstat = NFSERR_INVAL;
2487         }
2488         clientid.lval[0] = stp->ls_stateid.other[0];
2489         clientid.lval[1] = stp->ls_stateid.other[1];
2490         if (nd->nd_flag & ND_IMPLIEDCLID) {
2491                 if (nd->nd_clientid.qval != clientid.qval)
2492                         printf("EEK! multiple clids\n");
2493         } else {
2494                 nd->nd_flag |= ND_IMPLIEDCLID;
2495                 nd->nd_clientid.qval = clientid.qval;
2496         }
2497         if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
2498             if (vnode_vtype(vp) == VDIR)
2499                 nd->nd_repstat = NFSERR_ISDIR;
2500             else
2501                 nd->nd_repstat = NFSERR_INVAL;
2502         }
2503         /*
2504          * Call nfsrv_lockctrl() even if nd_repstat is set, so that the
2505          * seqid# gets incremented. nfsrv_lockctrl() will return the
2506          * value of nd_repstat, if it gets that far.
2507          */
2508         nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid,
2509             &stateid, exp, nd, p);
2510         if (stp)
2511                 FREE((caddr_t)stp, M_NFSDSTATE);
2512         if (lop)
2513                 free((caddr_t)lop, M_NFSDLOCK);
2514         if (!nd->nd_repstat) {
2515                 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
2516                 *tl++ = txdr_unsigned(stateid.seqid);
2517                 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
2518         }
2519 nfsmout:
2520         vput(vp);
2521         NFSEXITCODE2(error, nd);
2522         return (error);
2523 }
2524
2525 /*
2526  * nfsv4 open service
2527  */
2528 APPLESTATIC int
2529 nfsrvd_open(struct nfsrv_descript *nd, __unused int isdgram,
2530     vnode_t dp, vnode_t *vpp, __unused fhandle_t *fhp, NFSPROC_T *p,
2531     struct nfsexstuff *exp)
2532 {
2533         u_int32_t *tl;
2534         int i;
2535         struct nfsstate *stp = NULL;
2536         int error = 0, create, claim, exclusive_flag = 0;
2537         u_int32_t rflags = NFSV4OPEN_LOCKTYPEPOSIX, acemask;
2538         int how = NFSCREATE_UNCHECKED;
2539         int32_t cverf[2], tverf[2] = { 0, 0 };
2540         vnode_t vp = NULL, dirp = NULL;
2541         struct nfsvattr nva, dirfor, diraft;
2542         struct nameidata named;
2543         nfsv4stateid_t stateid, delegstateid;
2544         nfsattrbit_t attrbits;
2545         nfsquad_t clientid;
2546         char *bufp = NULL;
2547         u_long *hashp;
2548         NFSACL_T *aclp = NULL;
2549
2550 #ifdef NFS4_ACL_EXTATTR_NAME
2551         aclp = acl_alloc(M_WAITOK);
2552         aclp->acl_cnt = 0;
2553 #endif
2554         NFSZERO_ATTRBIT(&attrbits);
2555         named.ni_startdir = NULL;
2556         named.ni_cnd.cn_nameiop = 0;
2557         NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED);
2558         i = fxdr_unsigned(int, *(tl + 5));
2559         if (i <= 0 || i > NFSV4_OPAQUELIMIT) {
2560                 nd->nd_repstat = NFSERR_BADXDR;
2561                 goto nfsmout;
2562         }
2563         MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + i,
2564             M_NFSDSTATE, M_WAITOK);
2565         stp->ls_ownerlen = i;
2566         stp->ls_op = nd->nd_rp;
2567         stp->ls_flags = NFSLCK_OPEN;
2568         stp->ls_uid = nd->nd_cred->cr_uid;
2569         stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++);
2570         i = fxdr_unsigned(int, *tl++);
2571         switch (i) {
2572         case NFSV4OPEN_ACCESSREAD:
2573                 stp->ls_flags |= NFSLCK_READACCESS;
2574                 break;
2575         case NFSV4OPEN_ACCESSWRITE:
2576                 stp->ls_flags |= NFSLCK_WRITEACCESS;
2577                 break;
2578         case NFSV4OPEN_ACCESSBOTH:
2579                 stp->ls_flags |= (NFSLCK_READACCESS | NFSLCK_WRITEACCESS);
2580                 break;
2581         default:
2582                 nd->nd_repstat = NFSERR_INVAL;
2583         };
2584         i = fxdr_unsigned(int, *tl++);
2585         switch (i) {
2586         case NFSV4OPEN_DENYNONE:
2587                 break;
2588         case NFSV4OPEN_DENYREAD:
2589                 stp->ls_flags |= NFSLCK_READDENY;
2590                 break;
2591         case NFSV4OPEN_DENYWRITE:
2592                 stp->ls_flags |= NFSLCK_WRITEDENY;
2593                 break;
2594         case NFSV4OPEN_DENYBOTH:
2595                 stp->ls_flags |= (NFSLCK_READDENY | NFSLCK_WRITEDENY);
2596                 break;
2597         default:
2598                 nd->nd_repstat = NFSERR_INVAL;
2599         };
2600         clientid.lval[0] = *tl++;
2601         clientid.lval[1] = *tl;
2602         if (nd->nd_flag & ND_IMPLIEDCLID) {
2603                 if (nd->nd_clientid.qval != clientid.qval)
2604                         printf("EEK! multiple clids\n");
2605         } else {
2606                 nd->nd_flag |= ND_IMPLIEDCLID;
2607                 nd->nd_clientid.qval = clientid.qval;
2608         }
2609         error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen);
2610         if (error)
2611                 goto nfsmout;
2612         NFSVNO_ATTRINIT(&nva);
2613         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
2614         create = fxdr_unsigned(int, *tl);
2615         if (!nd->nd_repstat)
2616                 nd->nd_repstat = nfsvno_getattr(dp, &dirfor, nd->nd_cred, p, 0);
2617         if (create == NFSV4OPEN_CREATE) {
2618                 nva.na_type = VREG;
2619                 nva.na_mode = 0;
2620                 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
2621                 how = fxdr_unsigned(int, *tl);
2622                 switch (how) {
2623                 case NFSCREATE_UNCHECKED:
2624                 case NFSCREATE_GUARDED:
2625                         error = nfsv4_sattr(nd, &nva, &attrbits, aclp, p);
2626                         if (error)
2627                                 goto nfsmout;
2628                         /*
2629                          * If the na_gid being set is the same as that of
2630                          * the directory it is going in, clear it, since
2631                          * that is what will be set by default. This allows
2632                          * a user that isn't in that group to do the create.
2633                          */
2634                         if (!nd->nd_repstat && NFSVNO_ISSETGID(&nva) &&
2635                             nva.na_gid == dirfor.na_gid)
2636                                 NFSVNO_UNSET(&nva, gid);
2637                         if (!nd->nd_repstat)
2638                                 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
2639                         break;
2640                 case NFSCREATE_EXCLUSIVE:
2641                         NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
2642                         cverf[0] = *tl++;
2643                         cverf[1] = *tl;
2644                         break;
2645                 default:
2646                         nd->nd_repstat = NFSERR_BADXDR;
2647                         goto nfsmout;
2648                 };
2649         } else if (create != NFSV4OPEN_NOCREATE) {
2650                 nd->nd_repstat = NFSERR_BADXDR;
2651                 goto nfsmout;
2652         }
2653
2654         /*
2655          * Now, handle the claim, which usually includes looking up a
2656          * name in the directory referenced by dp. The exception is
2657          * NFSV4OPEN_CLAIMPREVIOUS.
2658          */
2659         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
2660         claim = fxdr_unsigned(int, *tl);
2661         if (claim == NFSV4OPEN_CLAIMDELEGATECUR) {
2662                 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
2663                 stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
2664                 NFSBCOPY((caddr_t)tl,(caddr_t)stateid.other,NFSX_STATEIDOTHER);
2665                 stp->ls_flags |= NFSLCK_DELEGCUR;
2666         } else if (claim == NFSV4OPEN_CLAIMDELEGATEPREV) {
2667                 stp->ls_flags |= NFSLCK_DELEGPREV;
2668         }
2669         if (claim == NFSV4OPEN_CLAIMNULL || claim == NFSV4OPEN_CLAIMDELEGATECUR
2670             || claim == NFSV4OPEN_CLAIMDELEGATEPREV) {
2671                 if (!nd->nd_repstat && create == NFSV4OPEN_CREATE &&
2672                     claim != NFSV4OPEN_CLAIMNULL)
2673                         nd->nd_repstat = NFSERR_INVAL;
2674                 if (nd->nd_repstat) {
2675                         nd->nd_repstat = nfsrv_opencheck(clientid,
2676                             &stateid, stp, NULL, nd, p, nd->nd_repstat);
2677                         goto nfsmout;
2678                 }
2679                 if (create == NFSV4OPEN_CREATE)
2680                     NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
2681                         LOCKPARENT | LOCKLEAF | SAVESTART);
2682                 else
2683                     NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP,
2684                         LOCKLEAF | SAVESTART);
2685                 nfsvno_setpathbuf(&named, &bufp, &hashp);
2686                 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
2687                 if (error) {
2688                         vrele(dp);
2689 #ifdef NFS4_ACL_EXTATTR_NAME
2690                         acl_free(aclp);
2691 #endif
2692                         FREE((caddr_t)stp, M_NFSDSTATE);
2693                         nfsvno_relpathbuf(&named);
2694                         NFSEXITCODE2(error, nd);
2695                         return (error);
2696                 }
2697                 if (!nd->nd_repstat) {
2698                         nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp,
2699                             p, &dirp);
2700                 } else {
2701                         vrele(dp);
2702                         nfsvno_relpathbuf(&named);
2703                 }
2704                 if (create == NFSV4OPEN_CREATE) {
2705                     switch (how) {
2706                     case NFSCREATE_UNCHECKED:
2707                         if (named.ni_vp) {
2708                                 /*
2709                                  * Clear the setable attribute bits, except
2710                                  * for Size, if it is being truncated.
2711                                  */
2712                                 NFSZERO_ATTRBIT(&attrbits);
2713                                 if (NFSVNO_ISSETSIZE(&nva))
2714                                         NFSSETBIT_ATTRBIT(&attrbits,
2715                                             NFSATTRBIT_SIZE);
2716                         }
2717                         break;
2718                     case NFSCREATE_GUARDED:
2719                         if (named.ni_vp && !nd->nd_repstat)
2720                                 nd->nd_repstat = EEXIST;
2721                         break;
2722                     case NFSCREATE_EXCLUSIVE:
2723                         exclusive_flag = 1;
2724                         if (!named.ni_vp)
2725                                 nva.na_mode = 0;
2726                     };
2727                 }
2728                 nfsvno_open(nd, &named, clientid, &stateid, stp,
2729                     &exclusive_flag, &nva, cverf, create, aclp, &attrbits,
2730                     nd->nd_cred, p, exp, &vp);
2731         } else if (claim == NFSV4OPEN_CLAIMPREVIOUS) {
2732                 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
2733                 i = fxdr_unsigned(int, *tl);
2734                 switch (i) {
2735                 case NFSV4OPEN_DELEGATEREAD:
2736                         stp->ls_flags |= NFSLCK_DELEGREAD;
2737                         break;
2738                 case NFSV4OPEN_DELEGATEWRITE:
2739                         stp->ls_flags |= NFSLCK_DELEGWRITE;
2740                 case NFSV4OPEN_DELEGATENONE:
2741                         break;
2742                 default:
2743                         nd->nd_repstat = NFSERR_BADXDR;
2744                         goto nfsmout;
2745                 };
2746                 stp->ls_flags |= NFSLCK_RECLAIM;
2747                 vp = dp;
2748                 NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY);
2749                 if ((vp->v_iflag & VI_DOOMED) == 0)
2750                         nd->nd_repstat = nfsrv_opencheck(clientid, &stateid,
2751                             stp, vp, nd, p, nd->nd_repstat);
2752                 else
2753                         nd->nd_repstat = NFSERR_PERM;
2754         } else {
2755                 nd->nd_repstat = NFSERR_BADXDR;
2756                 goto nfsmout;
2757         }
2758
2759         /*
2760          * Do basic access checking.
2761          */
2762         if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
2763                 /*
2764                  * The IETF working group decided that this is the correct
2765                  * error return for all non-regular files.
2766                  */
2767                 nd->nd_repstat = NFSERR_SYMLINK;
2768         }
2769         if (!nd->nd_repstat && (stp->ls_flags & NFSLCK_WRITEACCESS))
2770             nd->nd_repstat = nfsvno_accchk(vp, VWRITE, nd->nd_cred,
2771                 exp, p, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
2772         if (!nd->nd_repstat && (stp->ls_flags & NFSLCK_READACCESS)) {
2773             nd->nd_repstat = nfsvno_accchk(vp, VREAD, nd->nd_cred,
2774                 exp, p, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
2775             if (nd->nd_repstat)
2776                 nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
2777                     nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
2778                     NFSACCCHK_VPISLOCKED, NULL);
2779         }
2780
2781         if (!nd->nd_repstat) {
2782                 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
2783                 if (!nd->nd_repstat) {
2784                         tverf[0] = nva.na_atime.tv_sec;
2785                         tverf[1] = nva.na_atime.tv_nsec;
2786                 }
2787         }
2788         if (!nd->nd_repstat && exclusive_flag && (cverf[0] != tverf[0] ||
2789             cverf[1] != tverf[1]))
2790                 nd->nd_repstat = EEXIST;
2791         /*
2792          * Do the open locking/delegation stuff.
2793          */
2794         if (!nd->nd_repstat)
2795             nd->nd_repstat = nfsrv_openctrl(nd, vp, &stp, clientid, &stateid,
2796                 &delegstateid, &rflags, exp, p, nva.na_filerev);
2797
2798         /*
2799          * vp must be unlocked before the call to nfsvno_getattr(dirp,...)
2800          * below, to avoid a deadlock with the lookup in nfsvno_namei() above.
2801          * (ie: Leave the NFSVOPUNLOCK() about here.)
2802          */
2803         if (vp)
2804                 NFSVOPUNLOCK(vp, 0);
2805         if (stp)
2806                 FREE((caddr_t)stp, M_NFSDSTATE);
2807         if (!nd->nd_repstat && dirp)
2808                 nd->nd_repstat = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p,
2809                     0);
2810         if (!nd->nd_repstat) {
2811                 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED);
2812                 *tl++ = txdr_unsigned(stateid.seqid);
2813                 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
2814                 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
2815                 if (claim == NFSV4OPEN_CLAIMPREVIOUS) {
2816                         *tl++ = newnfs_true;
2817                         *tl++ = 0;
2818                         *tl++ = 0;
2819                         *tl++ = 0;
2820                         *tl++ = 0;
2821                 } else {
2822                         *tl++ = newnfs_false;   /* Since dirp is not locked */
2823                         txdr_hyper(dirfor.na_filerev, tl);
2824                         tl += 2;
2825                         txdr_hyper(diraft.na_filerev, tl);
2826                         tl += 2;
2827                 }
2828                 *tl = txdr_unsigned(rflags & NFSV4OPEN_RFLAGS);
2829                 (void) nfsrv_putattrbit(nd, &attrbits);
2830                 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
2831                 if (rflags & NFSV4OPEN_READDELEGATE)
2832                         *tl = txdr_unsigned(NFSV4OPEN_DELEGATEREAD);
2833                 else if (rflags & NFSV4OPEN_WRITEDELEGATE)
2834                         *tl = txdr_unsigned(NFSV4OPEN_DELEGATEWRITE);
2835                 else
2836                         *tl = txdr_unsigned(NFSV4OPEN_DELEGATENONE);
2837                 if (rflags & (NFSV4OPEN_READDELEGATE|NFSV4OPEN_WRITEDELEGATE)) {
2838                         NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID+NFSX_UNSIGNED);
2839                         *tl++ = txdr_unsigned(delegstateid.seqid);
2840                         NFSBCOPY((caddr_t)delegstateid.other, (caddr_t)tl,
2841                             NFSX_STATEIDOTHER);
2842                         tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
2843                         if (rflags & NFSV4OPEN_RECALL)
2844                                 *tl = newnfs_true;
2845                         else
2846                                 *tl = newnfs_false;
2847                         if (rflags & NFSV4OPEN_WRITEDELEGATE) {
2848                                 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
2849                                 *tl++ = txdr_unsigned(NFSV4OPEN_LIMITSIZE);
2850                                 txdr_hyper(nva.na_size, tl);
2851                         }
2852                         NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
2853                         *tl++ = txdr_unsigned(NFSV4ACE_ALLOWEDTYPE);
2854                         *tl++ = txdr_unsigned(0x0);
2855                         acemask = NFSV4ACE_ALLFILESMASK;
2856                         if (nva.na_mode & S_IRUSR)
2857                             acemask |= NFSV4ACE_READMASK;
2858                         if (nva.na_mode & S_IWUSR)
2859                             acemask |= NFSV4ACE_WRITEMASK;
2860                         if (nva.na_mode & S_IXUSR)
2861                             acemask |= NFSV4ACE_EXECUTEMASK;
2862                         *tl = txdr_unsigned(acemask);
2863                         (void) nfsm_strtom(nd, "OWNER@", 6);
2864                 }
2865                 *vpp = vp;
2866         } else if (vp) {
2867                 vrele(vp);
2868         }
2869         if (dirp)
2870                 vrele(dirp);
2871 #ifdef NFS4_ACL_EXTATTR_NAME
2872         acl_free(aclp);
2873 #endif
2874         NFSEXITCODE2(0, nd);
2875         return (0);
2876 nfsmout:
2877         vrele(dp);
2878 #ifdef NFS4_ACL_EXTATTR_NAME
2879         acl_free(aclp);
2880 #endif
2881         if (stp)
2882                 FREE((caddr_t)stp, M_NFSDSTATE);
2883         NFSEXITCODE2(error, nd);
2884         return (error);
2885 }
2886
2887 /*
2888  * nfsv4 close service
2889  */
2890 APPLESTATIC int
2891 nfsrvd_close(struct nfsrv_descript *nd, __unused int isdgram,
2892     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
2893 {
2894         u_int32_t *tl;
2895         struct nfsstate st, *stp = &st;
2896         int error = 0;
2897         nfsv4stateid_t stateid;
2898         nfsquad_t clientid;
2899
2900         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID);
2901         stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++);
2902         stp->ls_ownerlen = 0;
2903         stp->ls_op = nd->nd_rp;
2904         stp->ls_uid = nd->nd_cred->cr_uid;
2905         stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
2906         NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
2907             NFSX_STATEIDOTHER);
2908         stp->ls_flags = NFSLCK_CLOSE;
2909         clientid.lval[0] = stp->ls_stateid.other[0];
2910         clientid.lval[1] = stp->ls_stateid.other[1];
2911         if (nd->nd_flag & ND_IMPLIEDCLID) {
2912                 if (nd->nd_clientid.qval != clientid.qval)
2913                         printf("EEK! multiple clids\n");
2914         } else {
2915                 nd->nd_flag |= ND_IMPLIEDCLID;
2916                 nd->nd_clientid.qval = clientid.qval;
2917         }
2918         nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, nd, p);
2919         vput(vp);
2920         if (!nd->nd_repstat) {
2921                 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
2922                 *tl++ = txdr_unsigned(stateid.seqid);
2923                 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
2924         }
2925         NFSEXITCODE2(0, nd);
2926         return (0);
2927 nfsmout:
2928         vput(vp);
2929         NFSEXITCODE2(error, nd);
2930         return (error);
2931 }
2932
2933 /*
2934  * nfsv4 delegpurge service
2935  */
2936 APPLESTATIC int
2937 nfsrvd_delegpurge(struct nfsrv_descript *nd, __unused int isdgram,
2938     __unused vnode_t vp, __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
2939 {
2940         u_int32_t *tl;
2941         int error = 0;
2942         nfsquad_t clientid;
2943
2944         if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
2945                 nd->nd_repstat = NFSERR_WRONGSEC;
2946                 goto nfsmout;
2947         }
2948         NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
2949         clientid.lval[0] = *tl++;
2950         clientid.lval[1] = *tl;
2951         if (nd->nd_flag & ND_IMPLIEDCLID) {
2952                 if (nd->nd_clientid.qval != clientid.qval)
2953                         printf("EEK! multiple clids\n");
2954         } else {
2955                 nd->nd_flag |= ND_IMPLIEDCLID;
2956                 nd->nd_clientid.qval = clientid.qval;
2957         }
2958         nd->nd_repstat = nfsrv_delegupdate(clientid, NULL, NULL,
2959             NFSV4OP_DELEGPURGE, nd->nd_cred, p);
2960 nfsmout:
2961         NFSEXITCODE2(error, nd);
2962         return (error);
2963 }
2964
2965 /*
2966  * nfsv4 delegreturn service
2967  */
2968 APPLESTATIC int
2969 nfsrvd_delegreturn(struct nfsrv_descript *nd, __unused int isdgram,
2970     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
2971 {
2972         u_int32_t *tl;
2973         int error = 0;
2974         nfsv4stateid_t stateid;
2975         nfsquad_t clientid;
2976
2977         NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
2978         stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
2979         NFSBCOPY((caddr_t)tl, (caddr_t)stateid.other, NFSX_STATEIDOTHER);
2980         clientid.lval[0] = stateid.other[0];
2981         clientid.lval[1] = stateid.other[1];
2982         if (nd->nd_flag & ND_IMPLIEDCLID) {
2983                 if (nd->nd_clientid.qval != clientid.qval)
2984                         printf("EEK! multiple clids\n");
2985         } else {
2986                 nd->nd_flag |= ND_IMPLIEDCLID;
2987                 nd->nd_clientid.qval = clientid.qval;
2988         }
2989         nd->nd_repstat = nfsrv_delegupdate(clientid, &stateid, vp,
2990             NFSV4OP_DELEGRETURN, nd->nd_cred, p);
2991 nfsmout:
2992         vput(vp);
2993         NFSEXITCODE2(error, nd);
2994         return (error);
2995 }
2996
2997 /*
2998  * nfsv4 get file handle service
2999  */
3000 APPLESTATIC int
3001 nfsrvd_getfh(struct nfsrv_descript *nd, __unused int isdgram,
3002     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3003 {
3004         fhandle_t fh;
3005
3006         nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
3007         vput(vp);
3008         if (!nd->nd_repstat)
3009                 (void) nfsm_fhtom(nd, (u_int8_t *)&fh, 0, 0);
3010         NFSEXITCODE2(0, nd);
3011         return (0);
3012 }
3013
3014 /*
3015  * nfsv4 open confirm service
3016  */
3017 APPLESTATIC int
3018 nfsrvd_openconfirm(struct nfsrv_descript *nd, __unused int isdgram,
3019     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3020 {
3021         u_int32_t *tl;
3022         struct nfsstate st, *stp = &st;
3023         int error = 0;
3024         nfsv4stateid_t stateid;
3025         nfsquad_t clientid;
3026
3027         NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED);
3028         stp->ls_ownerlen = 0;
3029         stp->ls_op = nd->nd_rp;
3030         stp->ls_uid = nd->nd_cred->cr_uid;
3031         stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
3032         NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
3033             NFSX_STATEIDOTHER);
3034         tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
3035         stp->ls_seq = fxdr_unsigned(u_int32_t, *tl);
3036         stp->ls_flags = NFSLCK_CONFIRM;
3037         clientid.lval[0] = stp->ls_stateid.other[0];
3038         clientid.lval[1] = stp->ls_stateid.other[1];
3039         if (nd->nd_flag & ND_IMPLIEDCLID) {
3040                 if (nd->nd_clientid.qval != clientid.qval)
3041                         printf("EEK! multiple clids\n");
3042         } else {
3043                 nd->nd_flag |= ND_IMPLIEDCLID;
3044                 nd->nd_clientid.qval = clientid.qval;
3045         }
3046         nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, nd, p);
3047         if (!nd->nd_repstat) {
3048                 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
3049                 *tl++ = txdr_unsigned(stateid.seqid);
3050                 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
3051         }
3052 nfsmout:
3053         vput(vp);
3054         NFSEXITCODE2(error, nd);
3055         return (error);
3056 }
3057
3058 /*
3059  * nfsv4 open downgrade service
3060  */
3061 APPLESTATIC int
3062 nfsrvd_opendowngrade(struct nfsrv_descript *nd, __unused int isdgram,
3063     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3064 {
3065         u_int32_t *tl;
3066         int i;
3067         struct nfsstate st, *stp = &st;
3068         int error = 0;
3069         nfsv4stateid_t stateid;
3070         nfsquad_t clientid;
3071
3072         NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED);
3073         stp->ls_ownerlen = 0;
3074         stp->ls_op = nd->nd_rp;
3075         stp->ls_uid = nd->nd_cred->cr_uid;
3076         stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
3077         NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
3078             NFSX_STATEIDOTHER);
3079         tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
3080         stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++);
3081         i = fxdr_unsigned(int, *tl++);
3082         switch (i) {
3083         case NFSV4OPEN_ACCESSREAD:
3084                 stp->ls_flags = (NFSLCK_READACCESS | NFSLCK_DOWNGRADE);
3085                 break;
3086         case NFSV4OPEN_ACCESSWRITE:
3087                 stp->ls_flags = (NFSLCK_WRITEACCESS | NFSLCK_DOWNGRADE);
3088                 break;
3089         case NFSV4OPEN_ACCESSBOTH:
3090                 stp->ls_flags = (NFSLCK_READACCESS | NFSLCK_WRITEACCESS |
3091                     NFSLCK_DOWNGRADE);
3092                 break;
3093         default:
3094                 nd->nd_repstat = NFSERR_BADXDR;
3095         };
3096         i = fxdr_unsigned(int, *tl);
3097         switch (i) {
3098         case NFSV4OPEN_DENYNONE:
3099                 break;
3100         case NFSV4OPEN_DENYREAD:
3101                 stp->ls_flags |= NFSLCK_READDENY;
3102                 break;
3103         case NFSV4OPEN_DENYWRITE:
3104                 stp->ls_flags |= NFSLCK_WRITEDENY;
3105                 break;
3106         case NFSV4OPEN_DENYBOTH:
3107                 stp->ls_flags |= (NFSLCK_READDENY | NFSLCK_WRITEDENY);
3108                 break;
3109         default:
3110                 nd->nd_repstat = NFSERR_BADXDR;
3111         };
3112
3113         clientid.lval[0] = stp->ls_stateid.other[0];
3114         clientid.lval[1] = stp->ls_stateid.other[1];
3115         if (nd->nd_flag & ND_IMPLIEDCLID) {
3116                 if (nd->nd_clientid.qval != clientid.qval)
3117                         printf("EEK! multiple clids\n");
3118         } else {
3119                 nd->nd_flag |= ND_IMPLIEDCLID;
3120                 nd->nd_clientid.qval = clientid.qval;
3121         }
3122         if (!nd->nd_repstat)
3123                 nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid,
3124                     nd, p);
3125         if (!nd->nd_repstat) {
3126                 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
3127                 *tl++ = txdr_unsigned(stateid.seqid);
3128                 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
3129         }
3130 nfsmout:
3131         vput(vp);
3132         NFSEXITCODE2(error, nd);
3133         return (error);
3134 }
3135
3136 /*
3137  * nfsv4 renew lease service
3138  */
3139 APPLESTATIC int
3140 nfsrvd_renew(struct nfsrv_descript *nd, __unused int isdgram,
3141     __unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3142 {
3143         u_int32_t *tl;
3144         int error = 0;
3145         nfsquad_t clientid;
3146
3147         if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
3148                 nd->nd_repstat = NFSERR_WRONGSEC;
3149                 goto nfsmout;
3150         }
3151         NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
3152         clientid.lval[0] = *tl++;
3153         clientid.lval[1] = *tl;
3154         if (nd->nd_flag & ND_IMPLIEDCLID) {
3155                 if (nd->nd_clientid.qval != clientid.qval)
3156                         printf("EEK! multiple clids\n");
3157         } else {
3158                 nd->nd_flag |= ND_IMPLIEDCLID;
3159                 nd->nd_clientid.qval = clientid.qval;
3160         }
3161         nd->nd_repstat = nfsrv_getclient(clientid, (CLOPS_RENEWOP|CLOPS_RENEW),
3162             NULL, (nfsquad_t)((u_quad_t)0), nd, p);
3163 nfsmout:
3164         NFSEXITCODE2(error, nd);
3165         return (error);
3166 }
3167
3168 /*
3169  * nfsv4 security info service
3170  */
3171 APPLESTATIC int
3172 nfsrvd_secinfo(struct nfsrv_descript *nd, int isdgram,
3173     vnode_t dp, NFSPROC_T *p, struct nfsexstuff *exp)
3174 {
3175         u_int32_t *tl;
3176         int len;
3177         struct nameidata named;
3178         vnode_t dirp = NULL, vp;
3179         struct nfsrvfh fh;
3180         struct nfsexstuff retnes;
3181         u_int32_t *sizp;
3182         int error = 0, savflag, i;
3183         char *bufp;
3184         u_long *hashp;
3185
3186         /*
3187          * All this just to get the export flags for the name.
3188          */
3189         NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP,
3190             LOCKLEAF | SAVESTART);
3191         nfsvno_setpathbuf(&named, &bufp, &hashp);
3192         error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
3193         if (error) {
3194                 vput(dp);
3195                 nfsvno_relpathbuf(&named);
3196                 goto out;
3197         }
3198         if (!nd->nd_repstat) {
3199                 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, p, &dirp);
3200         } else {
3201                 vput(dp);
3202                 nfsvno_relpathbuf(&named);
3203         }
3204         if (dirp)
3205                 vrele(dirp);
3206         if (nd->nd_repstat)
3207                 goto out;
3208         vrele(named.ni_startdir);
3209         nfsvno_relpathbuf(&named);
3210         fh.nfsrvfh_len = NFSX_MYFH;
3211         vp = named.ni_vp;
3212         nd->nd_repstat = nfsvno_getfh(vp, (fhandle_t *)fh.nfsrvfh_data, p);
3213         vput(vp);
3214         savflag = nd->nd_flag;
3215         if (!nd->nd_repstat) {
3216                 nfsd_fhtovp(nd, &fh, LK_SHARED, &vp, &retnes, NULL, 0, p);
3217                 if (vp)
3218                         vput(vp);
3219         }
3220         nd->nd_flag = savflag;
3221         if (nd->nd_repstat)
3222                 goto out;
3223
3224         /*
3225          * Finally have the export flags for name, so we can create
3226          * the security info.
3227          */
3228         len = 0;
3229         NFSM_BUILD(sizp, u_int32_t *, NFSX_UNSIGNED);
3230         for (i = 0; i < retnes.nes_numsecflavor; i++) {
3231                 if (retnes.nes_secflavors[i] == AUTH_SYS) {
3232                         NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
3233                         *tl = txdr_unsigned(RPCAUTH_UNIX);
3234                         len++;
3235                 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5) {
3236                         NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
3237                         *tl++ = txdr_unsigned(RPCAUTH_GSS);
3238                         (void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str,
3239                             nfsgss_mechlist[KERBV_MECH].len);
3240                         NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
3241                         *tl++ = txdr_unsigned(GSS_KERBV_QOP);
3242                         *tl = txdr_unsigned(RPCAUTHGSS_SVCNONE);
3243                         len++;
3244                 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5I) {
3245                         NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
3246                         *tl++ = txdr_unsigned(RPCAUTH_GSS);
3247                         (void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str,
3248                             nfsgss_mechlist[KERBV_MECH].len);
3249                         NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
3250                         *tl++ = txdr_unsigned(GSS_KERBV_QOP);
3251                         *tl = txdr_unsigned(RPCAUTHGSS_SVCINTEGRITY);
3252                         len++;
3253                 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5P) {
3254                         NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
3255                         *tl++ = txdr_unsigned(RPCAUTH_GSS);
3256                         (void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str,
3257                             nfsgss_mechlist[KERBV_MECH].len);
3258                         NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
3259                         *tl++ = txdr_unsigned(GSS_KERBV_QOP);
3260                         *tl = txdr_unsigned(RPCAUTHGSS_SVCPRIVACY);
3261                         len++;
3262                 }
3263         }
3264         *sizp = txdr_unsigned(len);
3265
3266 out:
3267         NFSEXITCODE2(error, nd);
3268         return (error);
3269 }
3270
3271 /*
3272  * nfsv4 set client id service
3273  */
3274 APPLESTATIC int
3275 nfsrvd_setclientid(struct nfsrv_descript *nd, __unused int isdgram,
3276     __unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3277 {
3278         u_int32_t *tl;
3279         int i;
3280         int error = 0, idlen;
3281         struct nfsclient *clp = NULL;
3282         struct sockaddr_in *rad;
3283         u_char *verf, *ucp, *ucp2, addrbuf[24];
3284         nfsquad_t clientid, confirm;
3285
3286         if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
3287                 nd->nd_repstat = NFSERR_WRONGSEC;
3288                 goto out;
3289         }
3290         NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF + NFSX_UNSIGNED);
3291         verf = (u_char *)tl;
3292         tl += (NFSX_VERF / NFSX_UNSIGNED);
3293         i = fxdr_unsigned(int, *tl);
3294         if (i > NFSV4_OPAQUELIMIT || i <= 0) {
3295                 nd->nd_repstat = NFSERR_BADXDR;
3296                 goto nfsmout;
3297         }
3298         idlen = i;
3299         if (nd->nd_flag & ND_GSS)
3300                 i += nd->nd_princlen;
3301         MALLOC(clp, struct nfsclient *, sizeof (struct nfsclient) + i,
3302             M_NFSDCLIENT, M_WAITOK);
3303         NFSBZERO((caddr_t)clp, sizeof (struct nfsclient) + i);
3304         NFSINITSOCKMUTEX(&clp->lc_req.nr_mtx);
3305         NFSSOCKADDRALLOC(clp->lc_req.nr_nam);
3306         NFSSOCKADDRSIZE(clp->lc_req.nr_nam, sizeof (struct sockaddr_in));
3307         clp->lc_req.nr_cred = NULL;
3308         NFSBCOPY(verf, clp->lc_verf, NFSX_VERF);
3309         clp->lc_idlen = idlen;
3310         error = nfsrv_mtostr(nd, clp->lc_id, idlen);
3311         if (error)
3312                 goto nfsmout;
3313         if (nd->nd_flag & ND_GSS) {
3314                 clp->lc_flags = LCL_GSS;
3315                 if (nd->nd_flag & ND_GSSINTEGRITY)
3316                         clp->lc_flags |= LCL_GSSINTEGRITY;
3317                 else if (nd->nd_flag & ND_GSSPRIVACY)
3318                         clp->lc_flags |= LCL_GSSPRIVACY;
3319         } else {
3320                 clp->lc_flags = 0;
3321         }
3322         if ((nd->nd_flag & ND_GSS) && nd->nd_princlen > 0) {
3323                 clp->lc_flags |= LCL_NAME;
3324                 clp->lc_namelen = nd->nd_princlen;
3325                 clp->lc_name = &clp->lc_id[idlen];
3326                 NFSBCOPY(nd->nd_principal, clp->lc_name, clp->lc_namelen);
3327         } else {
3328                 clp->lc_uid = nd->nd_cred->cr_uid;
3329                 clp->lc_gid = nd->nd_cred->cr_gid;
3330         }
3331         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
3332         clp->lc_program = fxdr_unsigned(u_int32_t, *tl);
3333         error = nfsrv_getclientipaddr(nd, clp);
3334         if (error)
3335                 goto nfsmout;
3336         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
3337         clp->lc_callback = fxdr_unsigned(u_int32_t, *tl);
3338
3339         /*
3340          * nfsrv_setclient() does the actual work of adding it to the
3341          * client list. If there is no error, the structure has been
3342          * linked into the client list and clp should no longer be used
3343          * here. When an error is returned, it has not been linked in,
3344          * so it should be free'd.
3345          */
3346         nd->nd_repstat = nfsrv_setclient(nd, &clp, &clientid, &confirm, p);
3347         if (nd->nd_repstat == NFSERR_CLIDINUSE) {
3348                 if (clp->lc_flags & LCL_TCPCALLBACK)
3349                         (void) nfsm_strtom(nd, "tcp", 3);
3350                 else
3351                         (void) nfsm_strtom(nd, "udp", 3);
3352                 rad = NFSSOCKADDR(clp->lc_req.nr_nam, struct sockaddr_in *);
3353                 ucp = (u_char *)&rad->sin_addr.s_addr;
3354                 ucp2 = (u_char *)&rad->sin_port;
3355                 sprintf(addrbuf, "%d.%d.%d.%d.%d.%d", ucp[0] & 0xff,
3356                     ucp[1] & 0xff, ucp[2] & 0xff, ucp[3] & 0xff,
3357                     ucp2[0] & 0xff, ucp2[1] & 0xff);
3358                 (void) nfsm_strtom(nd, addrbuf, strlen(addrbuf));
3359         }
3360         if (clp) {
3361                 NFSSOCKADDRFREE(clp->lc_req.nr_nam);
3362                 NFSFREEMUTEX(&clp->lc_req.nr_mtx);
3363                 free((caddr_t)clp, M_NFSDCLIENT);
3364         }
3365         if (!nd->nd_repstat) {
3366                 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_HYPER);
3367                 *tl++ = clientid.lval[0];
3368                 *tl++ = clientid.lval[1];
3369                 *tl++ = confirm.lval[0];
3370                 *tl = confirm.lval[1];
3371         }
3372
3373 out:
3374         NFSEXITCODE2(0, nd);
3375         return (0);
3376 nfsmout:
3377         if (clp) {
3378                 NFSSOCKADDRFREE(clp->lc_req.nr_nam);
3379                 NFSFREEMUTEX(&clp->lc_req.nr_mtx);
3380                 free((caddr_t)clp, M_NFSDCLIENT);
3381         }
3382         NFSEXITCODE2(error, nd);
3383         return (error);
3384 }
3385
3386 /*
3387  * nfsv4 set client id confirm service
3388  */
3389 APPLESTATIC int
3390 nfsrvd_setclientidcfrm(struct nfsrv_descript *nd,
3391     __unused int isdgram, __unused vnode_t vp, NFSPROC_T *p,
3392     __unused struct nfsexstuff *exp)
3393 {
3394         u_int32_t *tl;
3395         int error = 0;
3396         nfsquad_t clientid, confirm;
3397
3398         if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
3399                 nd->nd_repstat = NFSERR_WRONGSEC;
3400                 goto nfsmout;
3401         }
3402         NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_HYPER);
3403         clientid.lval[0] = *tl++;
3404         clientid.lval[1] = *tl++;
3405         confirm.lval[0] = *tl++;
3406         confirm.lval[1] = *tl;
3407
3408         /*
3409          * nfsrv_getclient() searches the client list for a match and
3410          * returns the appropriate NFSERR status.
3411          */
3412         nd->nd_repstat = nfsrv_getclient(clientid, (CLOPS_CONFIRM|CLOPS_RENEW),
3413             NULL, confirm, nd, p);
3414 nfsmout:
3415         NFSEXITCODE2(error, nd);
3416         return (error);
3417 }
3418
3419 /*
3420  * nfsv4 verify service
3421  */
3422 APPLESTATIC int
3423 nfsrvd_verify(struct nfsrv_descript *nd, int isdgram,
3424     vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3425 {
3426         int error = 0, ret, fhsize = NFSX_MYFH;
3427         struct nfsvattr nva;
3428         struct statfs sf;
3429         struct nfsfsinfo fs;
3430         fhandle_t fh;
3431
3432         nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
3433         if (!nd->nd_repstat)
3434                 nd->nd_repstat = nfsvno_statfs(vp, &sf);
3435         if (!nd->nd_repstat)
3436                 nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
3437         if (!nd->nd_repstat) {
3438                 nfsvno_getfs(&fs, isdgram);
3439                 error = nfsv4_loadattr(nd, vp, &nva, NULL, &fh, fhsize, NULL,
3440                     &sf, NULL, &fs, NULL, 1, &ret, NULL, NULL, p, nd->nd_cred);
3441                 if (!error) {
3442                         if (nd->nd_procnum == NFSV4OP_NVERIFY) {
3443                                 if (ret == 0)
3444                                         nd->nd_repstat = NFSERR_SAME;
3445                                 else if (ret != NFSERR_NOTSAME)
3446                                         nd->nd_repstat = ret;
3447                         } else if (ret)
3448                                 nd->nd_repstat = ret;
3449                 }
3450         }
3451         vput(vp);
3452         NFSEXITCODE2(error, nd);
3453         return (error);
3454 }
3455
3456 /*
3457  * nfs openattr rpc
3458  */
3459 APPLESTATIC int
3460 nfsrvd_openattr(struct nfsrv_descript *nd, __unused int isdgram,
3461     vnode_t dp, __unused vnode_t *vpp, __unused fhandle_t *fhp,
3462     __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
3463 {
3464         u_int32_t *tl;
3465         int error = 0, createdir;
3466
3467         NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
3468         createdir = fxdr_unsigned(int, *tl);
3469         nd->nd_repstat = NFSERR_NOTSUPP;
3470 nfsmout:
3471         vrele(dp);
3472         NFSEXITCODE2(error, nd);
3473         return (error);
3474 }
3475
3476 /*
3477  * nfsv4 release lock owner service
3478  */
3479 APPLESTATIC int
3480 nfsrvd_releaselckown(struct nfsrv_descript *nd, __unused int isdgram,
3481     __unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
3482 {
3483         u_int32_t *tl;
3484         struct nfsstate *stp = NULL;
3485         int error = 0, len;
3486         nfsquad_t clientid;
3487
3488         if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
3489                 nd->nd_repstat = NFSERR_WRONGSEC;
3490                 goto nfsmout;
3491         }
3492         NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
3493         len = fxdr_unsigned(int, *(tl + 2));
3494         if (len <= 0 || len > NFSV4_OPAQUELIMIT) {
3495                 nd->nd_repstat = NFSERR_BADXDR;
3496                 goto nfsmout;
3497         }
3498         MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + len,
3499             M_NFSDSTATE, M_WAITOK);
3500         stp->ls_ownerlen = len;
3501         stp->ls_op = NULL;
3502         stp->ls_flags = NFSLCK_RELEASE;
3503         stp->ls_uid = nd->nd_cred->cr_uid;
3504         clientid.lval[0] = *tl++;
3505         clientid.lval[1] = *tl;
3506         if (nd->nd_flag & ND_IMPLIEDCLID) {
3507                 if (nd->nd_clientid.qval != clientid.qval)
3508                         printf("EEK! multiple clids\n");
3509         } else {
3510                 nd->nd_flag |= ND_IMPLIEDCLID;
3511                 nd->nd_clientid.qval = clientid.qval;
3512         }
3513         error = nfsrv_mtostr(nd, stp->ls_owner, len);
3514         if (error)
3515                 goto nfsmout;
3516         nd->nd_repstat = nfsrv_releaselckown(stp, clientid, p);
3517         FREE((caddr_t)stp, M_NFSDSTATE);
3518
3519         NFSEXITCODE2(0, nd);
3520         return (0);
3521 nfsmout:
3522         if (stp)
3523                 free((caddr_t)stp, M_NFSDSTATE);
3524         NFSEXITCODE2(error, nd);
3525         return (error);
3526 }