1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 #include <sys/cdefs.h> 37 #include "opt_inet.h" 38 #include "opt_inet6.h" 39 /* 40 * nfs version 2, 3 and 4 server calls to vnode ops 41 * - these routines generally have 3 phases 42 * 1 - break down and validate rpc request in mbuf list 43 * 2 - do the vnode ops for the request, usually by calling a nfsvno_XXX() 44 * function in nfsd_port.c 45 * 3 - build the rpc reply in an mbuf list 46 * For nfsv4, these functions are called for each Op within the Compound RPC. 47 */ 48 49 #include <fs/nfs/nfsport.h> 50 #include <sys/extattr.h> 51 #include <sys/filio.h> 52 53 /* Global vars */ 54 extern u_int32_t newnfs_false, newnfs_true; 55 extern __enum_uint8(vtype) nv34tov_type[8]; 56 extern struct timeval nfsboottime; 57 extern int nfsrv_enable_crossmntpt; 58 extern int nfsrv_statehashsize; 59 extern int nfsrv_layouthashsize; 60 extern time_t nfsdev_time; 61 extern volatile int nfsrv_devidcnt; 62 extern int nfsd_debuglevel; 63 extern u_long sb_max_adj; 64 extern int nfsrv_pnfsatime; 65 extern int nfsrv_maxpnfsmirror; 66 extern uint32_t nfs_srvmaxio; 67 68 static int nfs_async = 0; 69 SYSCTL_DECL(_vfs_nfsd); 70 SYSCTL_INT(_vfs_nfsd, OID_AUTO, async, CTLFLAG_RW, &nfs_async, 0, 71 "Tell client that writes were synced even though they were not"); 72 extern int nfsrv_doflexfile; 73 SYSCTL_INT(_vfs_nfsd, OID_AUTO, default_flexfile, CTLFLAG_RW, 74 &nfsrv_doflexfile, 0, "Make Flex File Layout the default for pNFS"); 75 static int nfsrv_linux42server = 1; 76 SYSCTL_INT(_vfs_nfsd, OID_AUTO, linux42server, CTLFLAG_RW, 77 &nfsrv_linux42server, 0, 78 "Enable Linux style NFSv4.2 server (non-RFC compliant)"); 79 static bool nfsrv_openaccess = true; 80 SYSCTL_BOOL(_vfs_nfsd, OID_AUTO, v4openaccess, CTLFLAG_RW, 81 &nfsrv_openaccess, 0, 82 "Enable Linux style NFSv4 Open access check"); 83 static char nfsrv_scope[NFSV4_OPAQUELIMIT]; 84 SYSCTL_STRING(_vfs_nfsd, OID_AUTO, scope, CTLFLAG_RWTUN, 85 &nfsrv_scope, NFSV4_OPAQUELIMIT, "Server scope"); 86 static char nfsrv_owner_major[NFSV4_OPAQUELIMIT]; 87 SYSCTL_STRING(_vfs_nfsd, OID_AUTO, owner_major, CTLFLAG_RWTUN, 88 &nfsrv_owner_major, NFSV4_OPAQUELIMIT, "Server owner major"); 89 static uint64_t nfsrv_owner_minor; 90 SYSCTL_U64(_vfs_nfsd, OID_AUTO, owner_minor, CTLFLAG_RWTUN, 91 &nfsrv_owner_minor, 0, "Server owner minor"); 92 /* 93 * Only enable this if all your exported file systems 94 * (or pNFS DSs for the pNFS case) support VOP_ALLOCATE. 95 */ 96 static bool nfsrv_doallocate = false; 97 SYSCTL_BOOL(_vfs_nfsd, OID_AUTO, enable_v42allocate, CTLFLAG_RW, 98 &nfsrv_doallocate, 0, 99 "Enable NFSv4.2 Allocate operation"); 100 static uint64_t nfsrv_maxcopyrange = SSIZE_MAX; 101 SYSCTL_U64(_vfs_nfsd, OID_AUTO, maxcopyrange, CTLFLAG_RW, 102 &nfsrv_maxcopyrange, 0, "Max size of a Copy so RPC times reasonable"); 103 104 /* 105 * This list defines the GSS mechanisms supported. 106 * (Don't ask me how you get these strings from the RFC stuff like 107 * iso(1), org(3)... but someone did it, so I don't need to know.) 108 */ 109 static struct nfsgss_mechlist nfsgss_mechlist[] = { 110 { 9, "\052\206\110\206\367\022\001\002\002", 11 }, 111 { 0, "", 0 }, 112 }; 113 114 /* local functions */ 115 static void nfsrvd_symlinksub(struct nfsrv_descript *nd, struct nameidata *ndp, 116 struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp, 117 vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp, 118 int *diraft_retp, nfsattrbit_t *attrbitp, 119 NFSACL_T *aclp, NFSPROC_T *p, struct nfsexstuff *exp, char *pathcp, 120 int pathlen); 121 static void nfsrvd_mkdirsub(struct nfsrv_descript *nd, struct nameidata *ndp, 122 struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp, 123 vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp, 124 int *diraft_retp, nfsattrbit_t *attrbitp, NFSACL_T *aclp, 125 NFSPROC_T *p, struct nfsexstuff *exp); 126 127 /* 128 * nfs access service (not a part of NFS V2) 129 */ 130 int 131 nfsrvd_access(struct nfsrv_descript *nd, __unused int isdgram, 132 vnode_t vp, struct nfsexstuff *exp) 133 { 134 u_int32_t *tl; 135 int getret, error = 0; 136 struct nfsvattr nva; 137 u_int32_t testmode, nfsmode, supported = 0; 138 accmode_t deletebit; 139 struct thread *p = curthread; 140 141 if (nd->nd_repstat) { 142 nfsrv_postopattr(nd, 1, &nva); 143 goto out; 144 } 145 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 146 nfsmode = fxdr_unsigned(u_int32_t, *tl); 147 if ((nd->nd_flag & ND_NFSV4) && 148 (nfsmode & ~(NFSACCESS_READ | NFSACCESS_LOOKUP | 149 NFSACCESS_MODIFY | NFSACCESS_EXTEND | NFSACCESS_DELETE | 150 NFSACCESS_EXECUTE | NFSACCESS_XAREAD | NFSACCESS_XAWRITE | 151 NFSACCESS_XALIST))) { 152 nd->nd_repstat = NFSERR_INVAL; 153 vput(vp); 154 goto out; 155 } 156 if (nfsmode & NFSACCESS_READ) { 157 supported |= NFSACCESS_READ; 158 if (nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, p, 159 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 160 nfsmode &= ~NFSACCESS_READ; 161 } 162 if (nfsmode & NFSACCESS_MODIFY) { 163 supported |= NFSACCESS_MODIFY; 164 if (nfsvno_accchk(vp, VWRITE, nd->nd_cred, exp, p, 165 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 166 nfsmode &= ~NFSACCESS_MODIFY; 167 } 168 if (nfsmode & NFSACCESS_EXTEND) { 169 supported |= NFSACCESS_EXTEND; 170 if (nfsvno_accchk(vp, VWRITE | VAPPEND, nd->nd_cred, exp, p, 171 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 172 nfsmode &= ~NFSACCESS_EXTEND; 173 } 174 if (nfsmode & NFSACCESS_XAREAD) { 175 supported |= NFSACCESS_XAREAD; 176 if (nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, p, 177 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 178 nfsmode &= ~NFSACCESS_XAREAD; 179 } 180 if (nfsmode & NFSACCESS_XAWRITE) { 181 supported |= NFSACCESS_XAWRITE; 182 if (nfsvno_accchk(vp, VWRITE, nd->nd_cred, exp, p, 183 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 184 nfsmode &= ~NFSACCESS_XAWRITE; 185 } 186 if (nfsmode & NFSACCESS_XALIST) { 187 supported |= NFSACCESS_XALIST; 188 if (nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, p, 189 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 190 nfsmode &= ~NFSACCESS_XALIST; 191 } 192 if (nfsmode & NFSACCESS_DELETE) { 193 supported |= NFSACCESS_DELETE; 194 if (vp->v_type == VDIR) 195 deletebit = VDELETE_CHILD; 196 else 197 deletebit = VDELETE; 198 if (nfsvno_accchk(vp, deletebit, nd->nd_cred, exp, p, 199 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 200 nfsmode &= ~NFSACCESS_DELETE; 201 } 202 if (vp->v_type == VDIR) 203 testmode = NFSACCESS_LOOKUP; 204 else 205 testmode = NFSACCESS_EXECUTE; 206 if (nfsmode & testmode) { 207 supported |= (nfsmode & testmode); 208 if (nfsvno_accchk(vp, VEXEC, nd->nd_cred, exp, p, 209 NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported)) 210 nfsmode &= ~testmode; 211 } 212 nfsmode &= supported; 213 if (nd->nd_flag & ND_NFSV3) { 214 getret = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 215 nfsrv_postopattr(nd, getret, &nva); 216 } 217 vput(vp); 218 if (nd->nd_flag & ND_NFSV4) { 219 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 220 *tl++ = txdr_unsigned(supported); 221 } else 222 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 223 *tl = txdr_unsigned(nfsmode); 224 225 out: 226 NFSEXITCODE2(0, nd); 227 return (0); 228 nfsmout: 229 vput(vp); 230 NFSEXITCODE2(error, nd); 231 return (error); 232 } 233 234 /* 235 * nfs getattr service 236 */ 237 int 238 nfsrvd_getattr(struct nfsrv_descript *nd, int isdgram, 239 vnode_t vp, __unused struct nfsexstuff *exp) 240 { 241 struct nfsvattr nva; 242 fhandle_t fh; 243 int at_root = 0, error = 0, supports_nfsv4acls; 244 struct nfsreferral *refp; 245 nfsattrbit_t attrbits, tmpbits; 246 struct mount *mp; 247 struct vnode *tvp = NULL; 248 struct vattr va; 249 uint64_t mounted_on_fileno = 0; 250 accmode_t accmode; 251 struct thread *p = curthread; 252 253 if (nd->nd_repstat) 254 goto out; 255 if (nd->nd_flag & ND_NFSV4) { 256 error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); 257 if (error) { 258 vput(vp); 259 goto out; 260 } 261 262 /* 263 * Check for a referral. 264 */ 265 refp = nfsv4root_getreferral(vp, NULL, 0); 266 if (refp != NULL) { 267 (void) nfsrv_putreferralattr(nd, &attrbits, refp, 1, 268 &nd->nd_repstat); 269 vput(vp); 270 goto out; 271 } 272 if (nd->nd_repstat == 0) { 273 accmode = 0; 274 NFSSET_ATTRBIT(&tmpbits, &attrbits); 275 276 /* 277 * GETATTR with write-only attr time_access_set and time_modify_set 278 * should return NFS4ERR_INVAL. 279 */ 280 if (NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_TIMEACCESSSET) || 281 NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_TIMEMODIFYSET)){ 282 error = NFSERR_INVAL; 283 vput(vp); 284 goto out; 285 } 286 if (NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_ACL)) { 287 NFSCLRBIT_ATTRBIT(&tmpbits, NFSATTRBIT_ACL); 288 accmode |= VREAD_ACL; 289 } 290 if (NFSNONZERO_ATTRBIT(&tmpbits)) 291 accmode |= VREAD_ATTRIBUTES; 292 if (accmode != 0) 293 nd->nd_repstat = nfsvno_accchk(vp, accmode, 294 nd->nd_cred, exp, p, NFSACCCHK_NOOVERRIDE, 295 NFSACCCHK_VPISLOCKED, NULL); 296 } 297 } 298 if (!nd->nd_repstat) 299 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, &attrbits); 300 if (!nd->nd_repstat) { 301 if (nd->nd_flag & ND_NFSV4) { 302 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_FILEHANDLE)) 303 nd->nd_repstat = nfsvno_getfh(vp, &fh, p); 304 if (!nd->nd_repstat) 305 nd->nd_repstat = nfsrv_checkgetattr(nd, vp, 306 &nva, &attrbits, p); 307 if (nd->nd_repstat == 0) { 308 supports_nfsv4acls = nfs_supportsnfsv4acls(vp); 309 mp = vp->v_mount; 310 if (nfsrv_enable_crossmntpt != 0 && 311 vp->v_type == VDIR && 312 (vp->v_vflag & VV_ROOT) != 0 && 313 vp != rootvnode) { 314 tvp = mp->mnt_vnodecovered; 315 VREF(tvp); 316 at_root = 1; 317 } else 318 at_root = 0; 319 vfs_ref(mp); 320 NFSVOPUNLOCK(vp); 321 if (at_root != 0) { 322 if ((nd->nd_repstat = 323 NFSVOPLOCK(tvp, LK_SHARED)) == 0) { 324 nd->nd_repstat = VOP_GETATTR( 325 tvp, &va, nd->nd_cred); 326 vput(tvp); 327 } else 328 vrele(tvp); 329 if (nd->nd_repstat == 0) 330 mounted_on_fileno = (uint64_t) 331 va.va_fileid; 332 else 333 at_root = 0; 334 } 335 if (nd->nd_repstat == 0) 336 nd->nd_repstat = vfs_busy(mp, 0); 337 vfs_rel(mp); 338 if (nd->nd_repstat == 0) { 339 (void)nfsvno_fillattr(nd, mp, vp, &nva, 340 &fh, 0, &attrbits, nd->nd_cred, p, 341 isdgram, 1, supports_nfsv4acls, 342 at_root, mounted_on_fileno); 343 vfs_unbusy(mp); 344 } 345 vrele(vp); 346 } else 347 vput(vp); 348 } else { 349 nfsrv_fillattr(nd, &nva); 350 vput(vp); 351 } 352 } else { 353 vput(vp); 354 } 355 356 out: 357 NFSEXITCODE2(error, nd); 358 return (error); 359 } 360 361 /* 362 * nfs setattr service 363 */ 364 int 365 nfsrvd_setattr(struct nfsrv_descript *nd, __unused int isdgram, 366 vnode_t vp, struct nfsexstuff *exp) 367 { 368 struct nfsvattr nva, nva2; 369 u_int32_t *tl; 370 int preat_ret = 1, postat_ret = 1, gcheck = 0, error = 0; 371 int gotproxystateid; 372 struct timespec guard = { 0, 0 }; 373 nfsattrbit_t attrbits, retbits; 374 nfsv4stateid_t stateid; 375 NFSACL_T *aclp = NULL; 376 struct thread *p = curthread; 377 378 NFSZERO_ATTRBIT(&retbits); 379 if (nd->nd_repstat) { 380 nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva); 381 goto out; 382 } 383 #ifdef NFS4_ACL_EXTATTR_NAME 384 aclp = acl_alloc(M_WAITOK); 385 aclp->acl_cnt = 0; 386 #endif 387 gotproxystateid = 0; 388 NFSVNO_ATTRINIT(&nva); 389 if (nd->nd_flag & ND_NFSV4) { 390 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 391 stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 392 stateid.other[0] = *tl++; 393 stateid.other[1] = *tl++; 394 stateid.other[2] = *tl; 395 if (stateid.other[0] == 0x55555555 && 396 stateid.other[1] == 0x55555555 && 397 stateid.other[2] == 0x55555555 && 398 stateid.seqid == 0xffffffff) 399 gotproxystateid = 1; 400 } 401 error = nfsrv_sattr(nd, vp, &nva, &attrbits, aclp, p); 402 if (error) 403 goto nfsmout; 404 405 /* For NFSv4, only va_uid is used from nva2. */ 406 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNER); 407 preat_ret = nfsvno_getattr(vp, &nva2, nd, p, 1, &retbits); 408 if (!nd->nd_repstat) 409 nd->nd_repstat = preat_ret; 410 411 NFSZERO_ATTRBIT(&retbits); 412 if (nd->nd_flag & ND_NFSV3) { 413 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 414 gcheck = fxdr_unsigned(int, *tl); 415 if (gcheck) { 416 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 417 fxdr_nfsv3time(tl, &guard); 418 } 419 if (!nd->nd_repstat && gcheck && 420 (nva2.na_ctime.tv_sec != guard.tv_sec || 421 nva2.na_ctime.tv_nsec != guard.tv_nsec)) 422 nd->nd_repstat = NFSERR_NOT_SYNC; 423 if (nd->nd_repstat) { 424 vput(vp); 425 #ifdef NFS4_ACL_EXTATTR_NAME 426 acl_free(aclp); 427 #endif 428 nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva); 429 goto out; 430 } 431 } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) 432 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva); 433 434 /* 435 * Now that we have all the fields, lets do it. 436 * If the size is being changed write access is required, otherwise 437 * just check for a read only file system. 438 */ 439 if (!nd->nd_repstat) { 440 if (NFSVNO_NOTSETSIZE(&nva)) { 441 if (NFSVNO_EXRDONLY(exp) || 442 (vp->v_mount->mnt_flag & MNT_RDONLY)) 443 nd->nd_repstat = EROFS; 444 } else { 445 if (vp->v_type != VREG) 446 nd->nd_repstat = EINVAL; 447 else if (nva2.na_uid != nd->nd_cred->cr_uid || 448 NFSVNO_EXSTRICTACCESS(exp)) 449 nd->nd_repstat = nfsvno_accchk(vp, 450 VWRITE, nd->nd_cred, exp, p, 451 NFSACCCHK_NOOVERRIDE, 452 NFSACCCHK_VPISLOCKED, NULL); 453 } 454 } 455 /* 456 * Proxy operations from the MDS are allowed via the all 0s special 457 * stateid. 458 */ 459 if (nd->nd_repstat == 0 && (nd->nd_flag & ND_NFSV4) != 0 && 460 gotproxystateid == 0) 461 nd->nd_repstat = nfsrv_checksetattr(vp, nd, &stateid, 462 &nva, &attrbits, exp, p); 463 464 if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) { 465 /* 466 * For V4, try setting the attributes in sets, so that the 467 * reply bitmap will be correct for an error case. 468 */ 469 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNER) || 470 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP)) { 471 NFSVNO_ATTRINIT(&nva2); 472 NFSVNO_SETATTRVAL(&nva2, uid, nva.na_uid); 473 NFSVNO_SETATTRVAL(&nva2, gid, nva.na_gid); 474 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p, 475 exp); 476 if (!nd->nd_repstat) { 477 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNER)) 478 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNER); 479 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP)) 480 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNERGROUP); 481 } 482 } 483 if (!nd->nd_repstat && 484 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_SIZE)) { 485 NFSVNO_ATTRINIT(&nva2); 486 NFSVNO_SETATTRVAL(&nva2, size, nva.na_size); 487 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p, 488 exp); 489 if (!nd->nd_repstat) 490 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_SIZE); 491 } 492 if (!nd->nd_repstat && 493 (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET) || 494 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET))) { 495 NFSVNO_ATTRINIT(&nva2); 496 NFSVNO_SETATTRVAL(&nva2, atime, nva.na_atime); 497 NFSVNO_SETATTRVAL(&nva2, mtime, nva.na_mtime); 498 if (nva.na_vaflags & VA_UTIMES_NULL) { 499 nva2.na_vaflags |= VA_UTIMES_NULL; 500 NFSVNO_SETACTIVE(&nva2, vaflags); 501 } 502 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p, 503 exp); 504 if (!nd->nd_repstat) { 505 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET)) 506 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEACCESSSET); 507 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET)) 508 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEMODIFYSET); 509 } 510 } 511 if (!nd->nd_repstat && 512 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMECREATE)) { 513 NFSVNO_ATTRINIT(&nva2); 514 NFSVNO_SETATTRVAL(&nva2, btime, nva.na_btime); 515 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p, 516 exp); 517 if (!nd->nd_repstat) 518 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMECREATE); 519 } 520 if (!nd->nd_repstat && 521 (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODE) || 522 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODESETMASKED))) { 523 NFSVNO_ATTRINIT(&nva2); 524 NFSVNO_SETATTRVAL(&nva2, mode, nva.na_mode); 525 nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p, 526 exp); 527 if (!nd->nd_repstat) { 528 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODE)) 529 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_MODE); 530 if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODESETMASKED)) 531 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_MODESETMASKED); 532 } 533 } 534 535 #ifdef NFS4_ACL_EXTATTR_NAME 536 if (!nd->nd_repstat && aclp->acl_cnt > 0 && 537 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_ACL)) { 538 nd->nd_repstat = nfsrv_setacl(vp, aclp, nd->nd_cred, p); 539 if (!nd->nd_repstat) 540 NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_ACL); 541 } 542 #endif 543 } else if (!nd->nd_repstat) { 544 nd->nd_repstat = nfsvno_setattr(vp, &nva, nd->nd_cred, p, 545 exp); 546 } 547 if (nd->nd_flag & (ND_NFSV2 | ND_NFSV3)) { 548 postat_ret = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 549 if (!nd->nd_repstat) 550 nd->nd_repstat = postat_ret; 551 } 552 vput(vp); 553 #ifdef NFS4_ACL_EXTATTR_NAME 554 acl_free(aclp); 555 #endif 556 if (nd->nd_flag & ND_NFSV3) 557 nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva); 558 else if (nd->nd_flag & ND_NFSV4) 559 (void) nfsrv_putattrbit(nd, &retbits); 560 else if (!nd->nd_repstat) 561 nfsrv_fillattr(nd, &nva); 562 563 out: 564 NFSEXITCODE2(0, nd); 565 return (0); 566 nfsmout: 567 vput(vp); 568 #ifdef NFS4_ACL_EXTATTR_NAME 569 acl_free(aclp); 570 #endif 571 if (nd->nd_flag & ND_NFSV4) { 572 /* 573 * For all nd_repstat, the V4 reply includes a bitmap, 574 * even NFSERR_BADXDR, which is what this will end up 575 * returning. 576 */ 577 (void) nfsrv_putattrbit(nd, &retbits); 578 } 579 NFSEXITCODE2(error, nd); 580 return (error); 581 } 582 583 /* 584 * nfs lookup rpc 585 * (Also performs lookup parent for v4) 586 */ 587 int 588 nfsrvd_lookup(struct nfsrv_descript *nd, __unused int isdgram, 589 vnode_t dp, vnode_t *vpp, fhandle_t *fhp, struct nfsexstuff *exp) 590 { 591 struct nameidata named; 592 vnode_t vp, dirp = NULL; 593 int error = 0, dattr_ret = 1; 594 struct nfsvattr nva, dattr; 595 char *bufp; 596 u_long *hashp; 597 struct thread *p = curthread; 598 struct componentname *cnp; 599 short irflag; 600 601 if (nd->nd_repstat) { 602 nfsrv_postopattr(nd, dattr_ret, &dattr); 603 goto out; 604 } 605 606 /* 607 * For some reason, if dp is a symlink, the error 608 * returned is supposed to be NFSERR_SYMLINK and not NFSERR_NOTDIR. 609 */ 610 if (dp->v_type == VLNK && (nd->nd_flag & ND_NFSV4)) { 611 nd->nd_repstat = NFSERR_SYMLINK; 612 vrele(dp); 613 goto out; 614 } 615 616 cnp = &named.ni_cnd; 617 irflag = vn_irflag_read(dp); 618 if ((irflag & VIRF_NAMEDDIR) != 0) 619 NFSNAMEICNDSET(cnp, nd->nd_cred, LOOKUP, LOCKLEAF | OPENNAMED); 620 else 621 NFSNAMEICNDSET(cnp, nd->nd_cred, LOOKUP, LOCKLEAF); 622 nfsvno_setpathbuf(&named, &bufp, &hashp); 623 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 624 if (error) { 625 vrele(dp); 626 nfsvno_relpathbuf(&named); 627 goto out; 628 } 629 if (!nd->nd_repstat) { 630 /* Don't set OPENNAMED for Lookupp (".."). */ 631 if (cnp->cn_namelen == 2 && *cnp->cn_pnbuf == '.' && 632 *(cnp->cn_pnbuf + 1) == '.') 633 cnp->cn_flags &= ~OPENNAMED; 634 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, &dirp); 635 } else { 636 vrele(dp); 637 nfsvno_relpathbuf(&named); 638 } 639 if (nd->nd_repstat) { 640 if (dirp) { 641 if (nd->nd_flag & ND_NFSV3) 642 dattr_ret = nfsvno_getattr(dirp, &dattr, nd, p, 643 0, NULL); 644 vrele(dirp); 645 } 646 if (nd->nd_flag & ND_NFSV3) 647 nfsrv_postopattr(nd, dattr_ret, &dattr); 648 goto out; 649 } 650 nfsvno_relpathbuf(&named); 651 vp = named.ni_vp; 652 if ((nd->nd_flag & ND_NFSV4) != 0 && !NFSVNO_EXPORTED(exp) && 653 vp->v_type != VDIR && vp->v_type != VLNK) 654 /* 655 * Only allow lookup of VDIR and VLNK for traversal of 656 * non-exported volumes during NFSv4 mounting. 657 */ 658 nd->nd_repstat = ENOENT; 659 if (nd->nd_repstat == 0) { 660 nd->nd_repstat = nfsvno_getfh(vp, fhp, p); 661 /* 662 * EOPNOTSUPP indicates the file system cannot be exported, 663 * so just pretend the entry does not exist. 664 */ 665 if (nd->nd_repstat == EOPNOTSUPP) 666 nd->nd_repstat = ENOENT; 667 } 668 if (!(nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) 669 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 670 if (vpp != NULL && nd->nd_repstat == 0) 671 *vpp = vp; 672 else 673 vput(vp); 674 if (dirp) { 675 if (nd->nd_flag & ND_NFSV3) 676 dattr_ret = nfsvno_getattr(dirp, &dattr, nd, p, 0, 677 NULL); 678 vrele(dirp); 679 } 680 if (nd->nd_repstat) { 681 if (nd->nd_flag & ND_NFSV3) 682 nfsrv_postopattr(nd, dattr_ret, &dattr); 683 goto out; 684 } 685 if (nd->nd_flag & ND_NFSV2) { 686 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0); 687 nfsrv_fillattr(nd, &nva); 688 } else if (nd->nd_flag & ND_NFSV3) { 689 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0); 690 nfsrv_postopattr(nd, 0, &nva); 691 nfsrv_postopattr(nd, dattr_ret, &dattr); 692 } 693 694 out: 695 NFSEXITCODE2(error, nd); 696 return (error); 697 } 698 699 /* 700 * nfs readlink service 701 */ 702 int 703 nfsrvd_readlink(struct nfsrv_descript *nd, __unused int isdgram, 704 vnode_t vp, __unused struct nfsexstuff *exp) 705 { 706 u_int32_t *tl; 707 struct mbuf *mp = NULL, *mpend = NULL; 708 int getret = 1, len; 709 struct nfsvattr nva; 710 struct thread *p = curthread; 711 uint16_t off; 712 713 if (nd->nd_repstat) { 714 nfsrv_postopattr(nd, getret, &nva); 715 goto out; 716 } 717 if (vp->v_type != VLNK) { 718 if (nd->nd_flag & ND_NFSV2) 719 nd->nd_repstat = ENXIO; 720 else 721 nd->nd_repstat = EINVAL; 722 } 723 if (nd->nd_repstat == 0) { 724 if ((nd->nd_flag & ND_EXTPG) != 0) 725 nd->nd_repstat = nfsvno_readlink(vp, nd->nd_cred, 726 nd->nd_maxextsiz, p, &mp, &mpend, &len); 727 else 728 nd->nd_repstat = nfsvno_readlink(vp, nd->nd_cred, 729 0, p, &mp, &mpend, &len); 730 } 731 if (nd->nd_flag & ND_NFSV3) 732 getret = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 733 vput(vp); 734 if (nd->nd_flag & ND_NFSV3) 735 nfsrv_postopattr(nd, getret, &nva); 736 if (nd->nd_repstat) 737 goto out; 738 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 739 *tl = txdr_unsigned(len); 740 if (mp != NULL) { 741 nd->nd_mb->m_next = mp; 742 nd->nd_mb = mpend; 743 if ((mpend->m_flags & M_EXTPG) != 0) { 744 nd->nd_bextpg = mpend->m_epg_npgs - 1; 745 nd->nd_bpos = (char *)(void *) 746 PHYS_TO_DMAP(mpend->m_epg_pa[nd->nd_bextpg]); 747 off = (nd->nd_bextpg == 0) ? mpend->m_epg_1st_off : 0; 748 nd->nd_bpos += off + mpend->m_epg_last_len; 749 nd->nd_bextpgsiz = PAGE_SIZE - mpend->m_epg_last_len - 750 off; 751 } else 752 nd->nd_bpos = mtod(mpend, char *) + mpend->m_len; 753 } 754 755 out: 756 NFSEXITCODE2(0, nd); 757 return (0); 758 } 759 760 /* 761 * nfs read service 762 */ 763 int 764 nfsrvd_read(struct nfsrv_descript *nd, __unused int isdgram, 765 vnode_t vp, struct nfsexstuff *exp) 766 { 767 u_int32_t *tl; 768 int error = 0, cnt, getret = 1, gotproxystateid, reqlen, eof = 0; 769 struct mbuf *m2, *m3; 770 struct nfsvattr nva; 771 off_t off = 0x0; 772 struct nfsstate st, *stp = &st; 773 struct nfslock lo, *lop = &lo; 774 nfsv4stateid_t stateid; 775 nfsquad_t clientid; 776 struct thread *p = curthread; 777 uint16_t poff; 778 779 if (nd->nd_repstat) { 780 nfsrv_postopattr(nd, getret, &nva); 781 goto out; 782 } 783 if (nd->nd_flag & ND_NFSV2) { 784 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 785 off = (off_t)fxdr_unsigned(u_int32_t, *tl++); 786 reqlen = fxdr_unsigned(int, *tl); 787 } else if (nd->nd_flag & ND_NFSV3) { 788 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 789 off = fxdr_hyper(tl); 790 tl += 2; 791 reqlen = fxdr_unsigned(int, *tl); 792 } else { 793 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 3*NFSX_UNSIGNED); 794 reqlen = fxdr_unsigned(int, *(tl + 6)); 795 } 796 if (reqlen > NFS_SRVMAXDATA(nd)) { 797 reqlen = NFS_SRVMAXDATA(nd); 798 } else if (reqlen < 0) { 799 error = EBADRPC; 800 goto nfsmout; 801 } 802 gotproxystateid = 0; 803 if (nd->nd_flag & ND_NFSV4) { 804 stp->ls_flags = (NFSLCK_CHECK | NFSLCK_READACCESS); 805 lop->lo_flags = NFSLCK_READ; 806 stp->ls_ownerlen = 0; 807 stp->ls_op = NULL; 808 stp->ls_uid = nd->nd_cred->cr_uid; 809 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 810 clientid.lval[0] = stp->ls_stateid.other[0] = *tl++; 811 clientid.lval[1] = stp->ls_stateid.other[1] = *tl++; 812 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 813 if ((nd->nd_flag & ND_NFSV41) != 0) 814 clientid.qval = nd->nd_clientid.qval; 815 else if (nd->nd_clientid.qval != clientid.qval) 816 printf("EEK1 multiple clids\n"); 817 } else { 818 if ((nd->nd_flag & ND_NFSV41) != 0) 819 printf("EEK! no clientid from session\n"); 820 nd->nd_flag |= ND_IMPLIEDCLID; 821 nd->nd_clientid.qval = clientid.qval; 822 } 823 stp->ls_stateid.other[2] = *tl++; 824 /* 825 * Don't allow the client to use a special stateid for a DS op. 826 */ 827 if ((nd->nd_flag & ND_DSSERVER) != 0 && 828 ((stp->ls_stateid.other[0] == 0x0 && 829 stp->ls_stateid.other[1] == 0x0 && 830 stp->ls_stateid.other[2] == 0x0) || 831 (stp->ls_stateid.other[0] == 0xffffffff && 832 stp->ls_stateid.other[1] == 0xffffffff && 833 stp->ls_stateid.other[2] == 0xffffffff) || 834 stp->ls_stateid.seqid != 0)) 835 nd->nd_repstat = NFSERR_BADSTATEID; 836 /* However, allow the proxy stateid. */ 837 if (stp->ls_stateid.seqid == 0xffffffff && 838 stp->ls_stateid.other[0] == 0x55555555 && 839 stp->ls_stateid.other[1] == 0x55555555 && 840 stp->ls_stateid.other[2] == 0x55555555) 841 gotproxystateid = 1; 842 off = fxdr_hyper(tl); 843 lop->lo_first = off; 844 tl += 2; 845 lop->lo_end = off + reqlen; 846 /* 847 * Paranoia, just in case it wraps around. 848 */ 849 if (lop->lo_end < off) 850 lop->lo_end = NFS64BITSSET; 851 } 852 if (vp->v_type != VREG) { 853 if (nd->nd_flag & ND_NFSV3) 854 nd->nd_repstat = EINVAL; 855 else 856 nd->nd_repstat = (vp->v_type == VDIR) ? EISDIR : 857 EINVAL; 858 } 859 getret = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 860 if (!nd->nd_repstat) 861 nd->nd_repstat = getret; 862 if (!nd->nd_repstat && 863 (nva.na_uid != nd->nd_cred->cr_uid || 864 NFSVNO_EXSTRICTACCESS(exp))) { 865 nd->nd_repstat = nfsvno_accchk(vp, VREAD, 866 nd->nd_cred, exp, p, 867 NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL); 868 if (nd->nd_repstat) 869 nd->nd_repstat = nfsvno_accchk(vp, VEXEC, 870 nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER, 871 NFSACCCHK_VPISLOCKED, NULL); 872 } 873 /* 874 * DS reads are marked by ND_DSSERVER or use the proxy special 875 * stateid. 876 */ 877 if (nd->nd_repstat == 0 && (nd->nd_flag & (ND_NFSV4 | ND_DSSERVER)) == 878 ND_NFSV4 && gotproxystateid == 0) 879 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid, 880 &stateid, exp, nd, p); 881 if (nd->nd_repstat) { 882 vput(vp); 883 if (nd->nd_flag & ND_NFSV3) 884 nfsrv_postopattr(nd, getret, &nva); 885 goto out; 886 } 887 if (off >= nva.na_size) { 888 cnt = 0; 889 eof = 1; 890 } else if (reqlen == 0) 891 cnt = 0; 892 else if ((off + reqlen) >= nva.na_size) { 893 cnt = nva.na_size - off; 894 eof = 1; 895 } else 896 cnt = reqlen; 897 m3 = NULL; 898 if (cnt > 0) { 899 /* 900 * If cnt > MCLBYTES and the reply will not be saved, use 901 * ext_pgs mbufs for TLS. 902 * For NFSv4.0, we do not know for sure if the reply will 903 * be saved, so do not use ext_pgs mbufs for NFSv4.0. 904 * Always use ext_pgs mbufs if ND_EXTPG is set. 905 */ 906 if ((nd->nd_flag & ND_EXTPG) != 0 || (cnt > MCLBYTES && 907 (nd->nd_flag & (ND_TLS | ND_SAVEREPLY)) == ND_TLS && 908 (nd->nd_flag & (ND_NFSV4 | ND_NFSV41)) != ND_NFSV4)) 909 nd->nd_repstat = nfsvno_read(vp, off, cnt, nd->nd_cred, 910 nd->nd_maxextsiz, p, &m3, &m2); 911 else 912 nd->nd_repstat = nfsvno_read(vp, off, cnt, nd->nd_cred, 913 0, p, &m3, &m2); 914 if (!(nd->nd_flag & ND_NFSV4)) { 915 getret = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 916 if (!nd->nd_repstat) 917 nd->nd_repstat = getret; 918 } 919 if (nd->nd_repstat) { 920 vput(vp); 921 if (m3) 922 m_freem(m3); 923 if (nd->nd_flag & ND_NFSV3) 924 nfsrv_postopattr(nd, getret, &nva); 925 goto out; 926 } 927 } 928 vput(vp); 929 if (nd->nd_flag & ND_NFSV2) { 930 nfsrv_fillattr(nd, &nva); 931 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 932 } else { 933 if (nd->nd_flag & ND_NFSV3) { 934 nfsrv_postopattr(nd, getret, &nva); 935 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 936 *tl++ = txdr_unsigned(cnt); 937 } else 938 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 939 if (eof) 940 *tl++ = newnfs_true; 941 else 942 *tl++ = newnfs_false; 943 } 944 *tl = txdr_unsigned(cnt); 945 if (m3) { 946 nd->nd_mb->m_next = m3; 947 nd->nd_mb = m2; 948 if ((m2->m_flags & M_EXTPG) != 0) { 949 nd->nd_flag |= ND_EXTPG; 950 nd->nd_bextpg = m2->m_epg_npgs - 1; 951 nd->nd_bpos = (char *)(void *) 952 PHYS_TO_DMAP(m2->m_epg_pa[nd->nd_bextpg]); 953 poff = (nd->nd_bextpg == 0) ? m2->m_epg_1st_off : 0; 954 nd->nd_bpos += poff + m2->m_epg_last_len; 955 nd->nd_bextpgsiz = PAGE_SIZE - m2->m_epg_last_len - 956 poff; 957 } else 958 nd->nd_bpos = mtod(m2, char *) + m2->m_len; 959 } 960 961 out: 962 NFSEXITCODE2(0, nd); 963 return (0); 964 nfsmout: 965 vput(vp); 966 NFSEXITCODE2(error, nd); 967 return (error); 968 } 969 970 /* 971 * nfs write service 972 */ 973 int 974 nfsrvd_write(struct nfsrv_descript *nd, __unused int isdgram, 975 vnode_t vp, struct nfsexstuff *exp) 976 { 977 u_int32_t *tl; 978 struct nfsvattr nva, forat; 979 int aftat_ret = 1, retlen, len, error = 0, forat_ret = 1; 980 int gotproxystateid, stable = NFSWRITE_FILESYNC; 981 off_t off; 982 struct nfsstate st, *stp = &st; 983 struct nfslock lo, *lop = &lo; 984 nfsv4stateid_t stateid; 985 nfsquad_t clientid; 986 nfsattrbit_t attrbits; 987 struct thread *p = curthread; 988 989 if (nd->nd_repstat) { 990 nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva); 991 goto out; 992 } 993 gotproxystateid = 0; 994 if (nd->nd_flag & ND_NFSV2) { 995 NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 996 off = (off_t)fxdr_unsigned(u_int32_t, *++tl); 997 tl += 2; 998 retlen = len = fxdr_unsigned(int32_t, *tl); 999 } else if (nd->nd_flag & ND_NFSV3) { 1000 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1001 off = fxdr_hyper(tl); 1002 tl += 3; 1003 stable = fxdr_unsigned(int, *tl++); 1004 retlen = len = fxdr_unsigned(int32_t, *tl); 1005 } else { 1006 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 4 * NFSX_UNSIGNED); 1007 stp->ls_flags = (NFSLCK_CHECK | NFSLCK_WRITEACCESS); 1008 lop->lo_flags = NFSLCK_WRITE; 1009 stp->ls_ownerlen = 0; 1010 stp->ls_op = NULL; 1011 stp->ls_uid = nd->nd_cred->cr_uid; 1012 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 1013 clientid.lval[0] = stp->ls_stateid.other[0] = *tl++; 1014 clientid.lval[1] = stp->ls_stateid.other[1] = *tl++; 1015 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 1016 if ((nd->nd_flag & ND_NFSV41) != 0) 1017 clientid.qval = nd->nd_clientid.qval; 1018 else if (nd->nd_clientid.qval != clientid.qval) 1019 printf("EEK2 multiple clids\n"); 1020 } else { 1021 if ((nd->nd_flag & ND_NFSV41) != 0) 1022 printf("EEK! no clientid from session\n"); 1023 nd->nd_flag |= ND_IMPLIEDCLID; 1024 nd->nd_clientid.qval = clientid.qval; 1025 } 1026 stp->ls_stateid.other[2] = *tl++; 1027 /* 1028 * Don't allow the client to use a special stateid for a DS op. 1029 */ 1030 if ((nd->nd_flag & ND_DSSERVER) != 0 && 1031 ((stp->ls_stateid.other[0] == 0x0 && 1032 stp->ls_stateid.other[1] == 0x0 && 1033 stp->ls_stateid.other[2] == 0x0) || 1034 (stp->ls_stateid.other[0] == 0xffffffff && 1035 stp->ls_stateid.other[1] == 0xffffffff && 1036 stp->ls_stateid.other[2] == 0xffffffff) || 1037 stp->ls_stateid.seqid != 0)) 1038 nd->nd_repstat = NFSERR_BADSTATEID; 1039 /* However, allow the proxy stateid. */ 1040 if (stp->ls_stateid.seqid == 0xffffffff && 1041 stp->ls_stateid.other[0] == 0x55555555 && 1042 stp->ls_stateid.other[1] == 0x55555555 && 1043 stp->ls_stateid.other[2] == 0x55555555) 1044 gotproxystateid = 1; 1045 off = fxdr_hyper(tl); 1046 lop->lo_first = off; 1047 tl += 2; 1048 stable = fxdr_unsigned(int, *tl++); 1049 retlen = len = fxdr_unsigned(int32_t, *tl); 1050 lop->lo_end = off + len; 1051 /* 1052 * Paranoia, just in case it wraps around, which shouldn't 1053 * ever happen anyhow. 1054 */ 1055 if (lop->lo_end < lop->lo_first) 1056 lop->lo_end = NFS64BITSSET; 1057 } 1058 1059 if (retlen > nfs_srvmaxio || retlen < 0) 1060 nd->nd_repstat = EIO; 1061 if (vp->v_type != VREG && !nd->nd_repstat) { 1062 if (nd->nd_flag & ND_NFSV3) 1063 nd->nd_repstat = EINVAL; 1064 else 1065 nd->nd_repstat = (vp->v_type == VDIR) ? EISDIR : 1066 EINVAL; 1067 } 1068 NFSZERO_ATTRBIT(&attrbits); 1069 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 1070 forat_ret = nfsvno_getattr(vp, &forat, nd, p, 1, &attrbits); 1071 if (!nd->nd_repstat) 1072 nd->nd_repstat = forat_ret; 1073 if (!nd->nd_repstat && 1074 (forat.na_uid != nd->nd_cred->cr_uid || 1075 NFSVNO_EXSTRICTACCESS(exp))) 1076 nd->nd_repstat = nfsvno_accchk(vp, VWRITE, 1077 nd->nd_cred, exp, p, 1078 NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL); 1079 /* 1080 * DS reads are marked by ND_DSSERVER or use the proxy special 1081 * stateid. 1082 */ 1083 if (nd->nd_repstat == 0 && (nd->nd_flag & (ND_NFSV4 | ND_DSSERVER)) == 1084 ND_NFSV4 && gotproxystateid == 0) 1085 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid, 1086 &stateid, exp, nd, p); 1087 if (nd->nd_repstat) { 1088 vput(vp); 1089 if (nd->nd_flag & ND_NFSV3) 1090 nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva); 1091 goto out; 1092 } 1093 1094 /* 1095 * For NFS Version 2, it is not obvious what a write of zero length 1096 * should do, but I might as well be consistent with Version 3, 1097 * which is to return ok so long as there are no permission problems. 1098 */ 1099 if (retlen > 0) { 1100 nd->nd_repstat = nfsvno_write(vp, off, retlen, &stable, 1101 nd->nd_md, nd->nd_dpos, nd->nd_cred, p); 1102 error = nfsm_advance(nd, NFSM_RNDUP(retlen), -1); 1103 if (error) 1104 goto nfsmout; 1105 } 1106 if (nd->nd_flag & ND_NFSV4) 1107 aftat_ret = 0; 1108 else 1109 aftat_ret = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 1110 vput(vp); 1111 if (!nd->nd_repstat) 1112 nd->nd_repstat = aftat_ret; 1113 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { 1114 if (nd->nd_flag & ND_NFSV3) 1115 nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva); 1116 if (nd->nd_repstat) 1117 goto out; 1118 NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1119 *tl++ = txdr_unsigned(retlen); 1120 /* 1121 * If nfs_async is set, then pretend the write was FILESYNC. 1122 * Warning: Doing this violates RFC1813 and runs a risk 1123 * of data written by a client being lost when the server 1124 * crashes/reboots. 1125 */ 1126 if (stable == NFSWRITE_UNSTABLE && nfs_async == 0) 1127 *tl++ = txdr_unsigned(stable); 1128 else 1129 *tl++ = txdr_unsigned(NFSWRITE_FILESYNC); 1130 /* 1131 * Actually, there is no need to txdr these fields, 1132 * but it may make the values more human readable, 1133 * for debugging purposes. 1134 */ 1135 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 1136 *tl = txdr_unsigned(nfsboottime.tv_usec); 1137 } else if (!nd->nd_repstat) 1138 nfsrv_fillattr(nd, &nva); 1139 1140 out: 1141 NFSEXITCODE2(0, nd); 1142 return (0); 1143 nfsmout: 1144 vput(vp); 1145 NFSEXITCODE2(error, nd); 1146 return (error); 1147 } 1148 1149 /* 1150 * nfs create service (creates regular files for V2 and V3. Spec. files for V2.) 1151 * now does a truncate to 0 length via. setattr if it already exists 1152 * The core creation routine has been extracted out into nfsrv_creatsub(), 1153 * so it can also be used by nfsrv_open() for V4. 1154 */ 1155 int 1156 nfsrvd_create(struct nfsrv_descript *nd, __unused int isdgram, 1157 vnode_t dp, struct nfsexstuff *exp) 1158 { 1159 struct nfsvattr nva, dirfor, diraft; 1160 struct nfsv2_sattr *sp; 1161 struct nameidata named; 1162 u_int32_t *tl; 1163 int error = 0, tsize, dirfor_ret = 1, diraft_ret = 1; 1164 int how = NFSCREATE_UNCHECKED, exclusive_flag = 0; 1165 NFSDEV_T rdev = 0; 1166 vnode_t vp = NULL, dirp = NULL; 1167 fhandle_t fh; 1168 char *bufp; 1169 u_long *hashp; 1170 __enum_uint8(vtype) vtyp; 1171 int32_t cverf[2], tverf[2] = { 0, 0 }; 1172 struct thread *p = curthread; 1173 1174 if (nd->nd_repstat) { 1175 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1176 goto out; 1177 } 1178 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, 1179 LOCKPARENT | LOCKLEAF | NOCACHE); 1180 nfsvno_setpathbuf(&named, &bufp, &hashp); 1181 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 1182 if (error) 1183 goto nfsmout; 1184 if (!nd->nd_repstat) { 1185 NFSVNO_ATTRINIT(&nva); 1186 if (nd->nd_flag & ND_NFSV2) { 1187 NFSM_DISSECT(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 1188 vtyp = IFTOVT(fxdr_unsigned(u_int32_t, sp->sa_mode)); 1189 if (vtyp == VNON) 1190 vtyp = VREG; 1191 NFSVNO_SETATTRVAL(&nva, type, vtyp); 1192 NFSVNO_SETATTRVAL(&nva, mode, 1193 nfstov_mode(sp->sa_mode)); 1194 switch (nva.na_type) { 1195 case VREG: 1196 tsize = fxdr_unsigned(int32_t, sp->sa_size); 1197 if (tsize != -1) 1198 NFSVNO_SETATTRVAL(&nva, size, 1199 (u_quad_t)tsize); 1200 break; 1201 case VCHR: 1202 case VBLK: 1203 case VFIFO: 1204 rdev = fxdr_unsigned(NFSDEV_T, sp->sa_size); 1205 break; 1206 default: 1207 break; 1208 } 1209 } else { 1210 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1211 how = fxdr_unsigned(int, *tl); 1212 switch (how) { 1213 case NFSCREATE_GUARDED: 1214 case NFSCREATE_UNCHECKED: 1215 error = nfsrv_sattr(nd, NULL, &nva, NULL, NULL, p); 1216 if (error) 1217 goto nfsmout; 1218 break; 1219 case NFSCREATE_EXCLUSIVE: 1220 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 1221 cverf[0] = *tl++; 1222 cverf[1] = *tl; 1223 exclusive_flag = 1; 1224 break; 1225 } 1226 NFSVNO_SETATTRVAL(&nva, type, VREG); 1227 } 1228 } 1229 if (nd->nd_repstat) { 1230 nfsvno_relpathbuf(&named); 1231 if (nd->nd_flag & ND_NFSV3) { 1232 dirfor_ret = nfsvno_getattr(dp, &dirfor, nd, p, 1, 1233 NULL); 1234 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, 1235 &diraft); 1236 } 1237 vput(dp); 1238 goto out; 1239 } 1240 1241 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, &dirp); 1242 if (dirp) { 1243 if (nd->nd_flag & ND_NFSV2) { 1244 vrele(dirp); 1245 dirp = NULL; 1246 } else { 1247 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, 1248 NULL); 1249 } 1250 } 1251 if (nd->nd_repstat) { 1252 if (nd->nd_flag & ND_NFSV3) 1253 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, 1254 &diraft); 1255 if (dirp) 1256 vrele(dirp); 1257 goto out; 1258 } 1259 1260 if (!(nd->nd_flag & ND_NFSV2)) { 1261 switch (how) { 1262 case NFSCREATE_GUARDED: 1263 if (named.ni_vp) 1264 nd->nd_repstat = EEXIST; 1265 break; 1266 case NFSCREATE_UNCHECKED: 1267 break; 1268 case NFSCREATE_EXCLUSIVE: 1269 if (named.ni_vp == NULL) 1270 NFSVNO_SETATTRVAL(&nva, mode, 0); 1271 break; 1272 } 1273 } 1274 1275 /* 1276 * Iff doesn't exist, create it 1277 * otherwise just truncate to 0 length 1278 * should I set the mode too ? 1279 */ 1280 nd->nd_repstat = nfsvno_createsub(nd, &named, &vp, &nva, 1281 &exclusive_flag, cverf, rdev, exp); 1282 1283 if (!nd->nd_repstat) { 1284 nd->nd_repstat = nfsvno_getfh(vp, &fh, p); 1285 if (!nd->nd_repstat) 1286 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, 1287 NULL); 1288 vput(vp); 1289 if (!nd->nd_repstat) { 1290 tverf[0] = nva.na_atime.tv_sec; 1291 tverf[1] = nva.na_atime.tv_nsec; 1292 } 1293 } 1294 if (nd->nd_flag & ND_NFSV2) { 1295 if (!nd->nd_repstat) { 1296 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 0); 1297 nfsrv_fillattr(nd, &nva); 1298 } 1299 } else { 1300 if (exclusive_flag && !nd->nd_repstat && (cverf[0] != tverf[0] 1301 || cverf[1] != tverf[1])) 1302 nd->nd_repstat = EEXIST; 1303 diraft_ret = nfsvno_getattr(dirp, &diraft, nd, p, 0, NULL); 1304 vrele(dirp); 1305 if (!nd->nd_repstat) { 1306 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 1); 1307 nfsrv_postopattr(nd, 0, &nva); 1308 } 1309 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1310 } 1311 1312 out: 1313 NFSEXITCODE2(0, nd); 1314 return (0); 1315 nfsmout: 1316 vput(dp); 1317 nfsvno_relpathbuf(&named); 1318 NFSEXITCODE2(error, nd); 1319 return (error); 1320 } 1321 1322 /* 1323 * nfs v3 mknod service (and v4 create) 1324 */ 1325 int 1326 nfsrvd_mknod(struct nfsrv_descript *nd, __unused int isdgram, 1327 vnode_t dp, vnode_t *vpp, fhandle_t *fhp, struct nfsexstuff *exp) 1328 { 1329 struct nfsvattr nva, dirfor, diraft; 1330 u_int32_t *tl; 1331 struct nameidata named; 1332 int error = 0, dirfor_ret = 1, diraft_ret = 1, pathlen; 1333 u_int32_t major, minor; 1334 __enum_uint8(vtype) vtyp = VNON; 1335 nfstype nfs4type = NFNON; 1336 vnode_t vp, dirp = NULL; 1337 nfsattrbit_t attrbits; 1338 char *bufp = NULL, *pathcp = NULL; 1339 u_long *hashp, cnflags; 1340 NFSACL_T *aclp = NULL; 1341 struct thread *p = curthread; 1342 1343 NFSVNO_ATTRINIT(&nva); 1344 cnflags = LOCKPARENT; 1345 if (nd->nd_repstat) { 1346 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1347 goto out; 1348 } 1349 #ifdef NFS4_ACL_EXTATTR_NAME 1350 aclp = acl_alloc(M_WAITOK); 1351 aclp->acl_cnt = 0; 1352 #endif 1353 1354 /* 1355 * For V4, the creation stuff is here, Yuck! 1356 */ 1357 if (nd->nd_flag & ND_NFSV4) { 1358 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1359 vtyp = nfsv34tov_type(*tl); 1360 nfs4type = fxdr_unsigned(nfstype, *tl); 1361 if ((vn_irflag_read(dp) & VIRF_NAMEDDIR) != 0) { 1362 /* 1363 * Don't allow creation of non-regular file objects 1364 * in a named attribute directory. 1365 */ 1366 nd->nd_repstat = NFSERR_INVAL; 1367 vrele(dp); 1368 #ifdef NFS4_ACL_EXTATTR_NAME 1369 acl_free(aclp); 1370 #endif 1371 goto out; 1372 } 1373 switch (nfs4type) { 1374 case NFLNK: 1375 error = nfsvno_getsymlink(nd, &nva, p, &pathcp, 1376 &pathlen); 1377 if (error) 1378 goto nfsmout; 1379 break; 1380 case NFCHR: 1381 case NFBLK: 1382 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1383 major = fxdr_unsigned(u_int32_t, *tl++); 1384 minor = fxdr_unsigned(u_int32_t, *tl); 1385 nva.na_rdev = NFSMAKEDEV(major, minor); 1386 break; 1387 case NFSOCK: 1388 case NFFIFO: 1389 break; 1390 case NFDIR: 1391 cnflags = LOCKPARENT; 1392 break; 1393 default: 1394 nd->nd_repstat = NFSERR_BADTYPE; 1395 vrele(dp); 1396 #ifdef NFS4_ACL_EXTATTR_NAME 1397 acl_free(aclp); 1398 #endif 1399 goto out; 1400 } 1401 } 1402 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, cnflags | NOCACHE); 1403 nfsvno_setpathbuf(&named, &bufp, &hashp); 1404 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 1405 if (error) 1406 goto nfsmout; 1407 if (!nd->nd_repstat) { 1408 if (nd->nd_flag & ND_NFSV3) { 1409 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 1410 vtyp = nfsv34tov_type(*tl); 1411 } 1412 error = nfsrv_sattr(nd, NULL, &nva, &attrbits, aclp, p); 1413 if (error) 1414 goto nfsmout; 1415 nva.na_type = vtyp; 1416 if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV3) && 1417 (vtyp == VCHR || vtyp == VBLK)) { 1418 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1419 major = fxdr_unsigned(u_int32_t, *tl++); 1420 minor = fxdr_unsigned(u_int32_t, *tl); 1421 nva.na_rdev = NFSMAKEDEV(major, minor); 1422 } 1423 } 1424 1425 dirfor_ret = nfsvno_getattr(dp, &dirfor, nd, p, 0, NULL); 1426 if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) { 1427 if (!dirfor_ret && NFSVNO_ISSETGID(&nva) && 1428 dirfor.na_gid == nva.na_gid) 1429 NFSVNO_UNSET(&nva, gid); 1430 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva); 1431 } 1432 if (nd->nd_repstat) { 1433 vrele(dp); 1434 #ifdef NFS4_ACL_EXTATTR_NAME 1435 acl_free(aclp); 1436 #endif 1437 nfsvno_relpathbuf(&named); 1438 if (pathcp) 1439 free(pathcp, M_TEMP); 1440 if (nd->nd_flag & ND_NFSV3) 1441 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, 1442 &diraft); 1443 goto out; 1444 } 1445 1446 /* 1447 * Yuck! For V4, mkdir and link are here and some V4 clients don't fill 1448 * in va_mode, so we'll have to set a default here. 1449 */ 1450 if (NFSVNO_NOTSETMODE(&nva)) { 1451 if (vtyp == VLNK) 1452 nva.na_mode = 0755; 1453 else 1454 nva.na_mode = 0400; 1455 } 1456 1457 if (vtyp == VDIR) 1458 named.ni_cnd.cn_flags |= WILLBEDIR; 1459 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, &dirp); 1460 if (nd->nd_repstat) { 1461 if (dirp) { 1462 if (nd->nd_flag & ND_NFSV3) 1463 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, 1464 p, 0, NULL); 1465 vrele(dirp); 1466 } 1467 #ifdef NFS4_ACL_EXTATTR_NAME 1468 acl_free(aclp); 1469 #endif 1470 if (nd->nd_flag & ND_NFSV3) 1471 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, 1472 &diraft); 1473 goto out; 1474 } 1475 if (dirp) 1476 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, NULL); 1477 1478 if ((nd->nd_flag & ND_NFSV4) && (vtyp == VDIR || vtyp == VLNK)) { 1479 if (vtyp == VDIR) { 1480 nfsrvd_mkdirsub(nd, &named, &nva, fhp, vpp, dirp, 1481 &dirfor, &diraft, &diraft_ret, &attrbits, aclp, p, 1482 exp); 1483 #ifdef NFS4_ACL_EXTATTR_NAME 1484 acl_free(aclp); 1485 #endif 1486 goto out; 1487 } else if (vtyp == VLNK) { 1488 nfsrvd_symlinksub(nd, &named, &nva, fhp, vpp, dirp, 1489 &dirfor, &diraft, &diraft_ret, &attrbits, 1490 aclp, p, exp, pathcp, pathlen); 1491 #ifdef NFS4_ACL_EXTATTR_NAME 1492 acl_free(aclp); 1493 #endif 1494 free(pathcp, M_TEMP); 1495 goto out; 1496 } 1497 } 1498 1499 nd->nd_repstat = nfsvno_mknod(&named, &nva, nd->nd_cred, p); 1500 if (!nd->nd_repstat) { 1501 vp = named.ni_vp; 1502 nfsrv_fixattr(nd, vp, &nva, aclp, p, &attrbits, exp); 1503 nd->nd_repstat = nfsvno_getfh(vp, fhp, p); 1504 if ((nd->nd_flag & ND_NFSV3) && !nd->nd_repstat) 1505 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, 1506 NULL); 1507 if (vpp != NULL && nd->nd_repstat == 0) { 1508 NFSVOPUNLOCK(vp); 1509 *vpp = vp; 1510 } else 1511 vput(vp); 1512 } 1513 1514 diraft_ret = nfsvno_getattr(dirp, &diraft, nd, p, 0, NULL); 1515 vrele(dirp); 1516 if (!nd->nd_repstat) { 1517 if (nd->nd_flag & ND_NFSV3) { 1518 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1); 1519 nfsrv_postopattr(nd, 0, &nva); 1520 } else { 1521 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1522 *tl++ = newnfs_false; 1523 txdr_hyper(dirfor.na_filerev, tl); 1524 tl += 2; 1525 txdr_hyper(diraft.na_filerev, tl); 1526 (void) nfsrv_putattrbit(nd, &attrbits); 1527 } 1528 } 1529 if (nd->nd_flag & ND_NFSV3) 1530 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1531 #ifdef NFS4_ACL_EXTATTR_NAME 1532 acl_free(aclp); 1533 #endif 1534 1535 out: 1536 NFSEXITCODE2(0, nd); 1537 return (0); 1538 nfsmout: 1539 vrele(dp); 1540 #ifdef NFS4_ACL_EXTATTR_NAME 1541 acl_free(aclp); 1542 #endif 1543 if (bufp) 1544 nfsvno_relpathbuf(&named); 1545 if (pathcp) 1546 free(pathcp, M_TEMP); 1547 1548 NFSEXITCODE2(error, nd); 1549 return (error); 1550 } 1551 1552 /* 1553 * nfs remove service 1554 */ 1555 int 1556 nfsrvd_remove(struct nfsrv_descript *nd, __unused int isdgram, 1557 vnode_t dp, struct nfsexstuff *exp) 1558 { 1559 struct nameidata named; 1560 u_int32_t *tl; 1561 int error = 0, dirfor_ret = 1, diraft_ret = 1; 1562 vnode_t dirp = NULL; 1563 struct nfsvattr dirfor, diraft; 1564 char *bufp; 1565 u_long *hashp; 1566 struct thread *p = curthread; 1567 1568 if (nd->nd_repstat) { 1569 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1570 goto out; 1571 } 1572 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, DELETE, 1573 LOCKPARENT | LOCKLEAF); 1574 nfsvno_setpathbuf(&named, &bufp, &hashp); 1575 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 1576 if (error) { 1577 vput(dp); 1578 nfsvno_relpathbuf(&named); 1579 goto out; 1580 } 1581 if (!nd->nd_repstat) { 1582 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, &dirp); 1583 } else { 1584 vput(dp); 1585 nfsvno_relpathbuf(&named); 1586 } 1587 if (dirp) { 1588 if (!(nd->nd_flag & ND_NFSV2)) { 1589 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, 1590 NULL); 1591 } else { 1592 vrele(dirp); 1593 dirp = NULL; 1594 } 1595 } 1596 if (!nd->nd_repstat) { 1597 if (nd->nd_flag & ND_NFSV4) { 1598 if (named.ni_vp->v_type == VDIR) 1599 nd->nd_repstat = nfsvno_rmdirsub(&named, 1, 1600 nd->nd_cred, p, exp); 1601 else 1602 nd->nd_repstat = nfsvno_removesub(&named, 1, 1603 nd->nd_cred, p, exp); 1604 } else if (nd->nd_procnum == NFSPROC_RMDIR) { 1605 nd->nd_repstat = nfsvno_rmdirsub(&named, 0, 1606 nd->nd_cred, p, exp); 1607 } else { 1608 nd->nd_repstat = nfsvno_removesub(&named, 0, 1609 nd->nd_cred, p, exp); 1610 } 1611 } 1612 if (!(nd->nd_flag & ND_NFSV2)) { 1613 if (dirp) { 1614 diraft_ret = nfsvno_getattr(dirp, &diraft, nd, p, 0, 1615 NULL); 1616 vrele(dirp); 1617 } 1618 if (nd->nd_flag & ND_NFSV3) { 1619 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, 1620 &diraft); 1621 } else if (!nd->nd_repstat) { 1622 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1623 *tl++ = newnfs_false; 1624 txdr_hyper(dirfor.na_filerev, tl); 1625 tl += 2; 1626 txdr_hyper(diraft.na_filerev, tl); 1627 } 1628 } 1629 1630 out: 1631 NFSEXITCODE2(error, nd); 1632 return (error); 1633 } 1634 1635 /* 1636 * nfs rename service 1637 */ 1638 int 1639 nfsrvd_rename(struct nfsrv_descript *nd, int isdgram, 1640 vnode_t dp, vnode_t todp, struct nfsexstuff *exp, struct nfsexstuff *toexp) 1641 { 1642 u_int32_t *tl; 1643 int error = 0, fdirfor_ret = 1, fdiraft_ret = 1; 1644 int tdirfor_ret = 1, tdiraft_ret = 1; 1645 struct nameidata fromnd, tond; 1646 vnode_t fdirp = NULL, tdirp = NULL, tdp = NULL; 1647 struct nfsvattr fdirfor, fdiraft, tdirfor, tdiraft; 1648 struct nfsexstuff tnes; 1649 struct nfsrvfh tfh; 1650 char *bufp, *tbufp = NULL; 1651 u_long *hashp; 1652 fhandle_t fh; 1653 struct thread *p = curthread; 1654 1655 if (nd->nd_repstat) { 1656 nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft); 1657 nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft); 1658 goto out; 1659 } 1660 if (!(nd->nd_flag & ND_NFSV2)) 1661 fdirfor_ret = nfsvno_getattr(dp, &fdirfor, nd, p, 1, NULL); 1662 tond.ni_cnd.cn_nameiop = 0; 1663 tond.ni_startdir = NULL; 1664 NFSNAMEICNDSET(&fromnd.ni_cnd, nd->nd_cred, DELETE, WANTPARENT); 1665 nfsvno_setpathbuf(&fromnd, &bufp, &hashp); 1666 error = nfsrv_parsename(nd, bufp, hashp, &fromnd.ni_pathlen); 1667 if (error) { 1668 vput(dp); 1669 if (todp) 1670 vrele(todp); 1671 nfsvno_relpathbuf(&fromnd); 1672 goto out; 1673 } 1674 /* 1675 * Unlock dp in this code section, so it is unlocked before 1676 * tdp gets locked. This avoids a potential LOR if tdp is the 1677 * parent directory of dp. 1678 */ 1679 if (nd->nd_flag & ND_NFSV4) { 1680 tdp = todp; 1681 tnes = *toexp; 1682 if (dp != tdp) { 1683 NFSVOPUNLOCK(dp); 1684 /* Might lock tdp. */ 1685 tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd, p, 0, 1686 NULL); 1687 } else { 1688 tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd, p, 1, 1689 NULL); 1690 NFSVOPUNLOCK(dp); 1691 } 1692 } else { 1693 tfh.nfsrvfh_len = 0; 1694 error = nfsrv_mtofh(nd, &tfh); 1695 if (error == 0) 1696 error = nfsvno_getfh(dp, &fh, p); 1697 if (error) { 1698 vput(dp); 1699 /* todp is always NULL except NFSv4 */ 1700 nfsvno_relpathbuf(&fromnd); 1701 goto out; 1702 } 1703 1704 /* If this is the same file handle, just VREF() the vnode. */ 1705 if (!NFSBCMP(tfh.nfsrvfh_data, &fh, NFSX_MYFH)) { 1706 VREF(dp); 1707 tdp = dp; 1708 tnes = *exp; 1709 tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd, p, 1, 1710 NULL); 1711 NFSVOPUNLOCK(dp); 1712 } else { 1713 NFSVOPUNLOCK(dp); 1714 nd->nd_cred->cr_uid = nd->nd_saveduid; 1715 nfsd_fhtovp(nd, &tfh, LK_EXCLUSIVE, &tdp, &tnes, NULL, 1716 0, -1); /* Locks tdp. */ 1717 if (tdp) { 1718 tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd, 1719 p, 1, NULL); 1720 NFSVOPUNLOCK(tdp); 1721 } 1722 } 1723 } 1724 NFSNAMEICNDSET(&tond.ni_cnd, nd->nd_cred, RENAME, LOCKPARENT | LOCKLEAF | NOCACHE); 1725 nfsvno_setpathbuf(&tond, &tbufp, &hashp); 1726 if (!nd->nd_repstat) { 1727 error = nfsrv_parsename(nd, tbufp, hashp, &tond.ni_pathlen); 1728 if (error) { 1729 if (tdp) 1730 vrele(tdp); 1731 vrele(dp); 1732 nfsvno_relpathbuf(&fromnd); 1733 nfsvno_relpathbuf(&tond); 1734 goto out; 1735 } 1736 } 1737 if (nd->nd_repstat) { 1738 if (nd->nd_flag & ND_NFSV3) { 1739 nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, 1740 &fdiraft); 1741 nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, 1742 &tdiraft); 1743 } 1744 if (tdp) 1745 vrele(tdp); 1746 vrele(dp); 1747 nfsvno_relpathbuf(&fromnd); 1748 nfsvno_relpathbuf(&tond); 1749 goto out; 1750 } 1751 1752 /* 1753 * Done parsing, now down to business. 1754 */ 1755 nd->nd_repstat = nfsvno_namei(nd, &fromnd, dp, 0, exp, &fdirp); 1756 if (nd->nd_repstat) { 1757 if (nd->nd_flag & ND_NFSV3) { 1758 nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, 1759 &fdiraft); 1760 nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, 1761 &tdiraft); 1762 } 1763 if (fdirp) 1764 vrele(fdirp); 1765 if (tdp) 1766 vrele(tdp); 1767 nfsvno_relpathbuf(&tond); 1768 goto out; 1769 } 1770 if (fromnd.ni_vp->v_type == VDIR) 1771 tond.ni_cnd.cn_flags |= WILLBEDIR; 1772 nd->nd_repstat = nfsvno_namei(nd, &tond, tdp, 0, &tnes, &tdirp); 1773 nd->nd_repstat = nfsvno_rename(&fromnd, &tond, nd->nd_repstat, 1774 nd->nd_flag, nd->nd_cred, p); 1775 if (fdirp) 1776 fdiraft_ret = nfsvno_getattr(fdirp, &fdiraft, nd, p, 0, NULL); 1777 if (tdirp) 1778 tdiraft_ret = nfsvno_getattr(tdirp, &tdiraft, nd, p, 0, NULL); 1779 if (fdirp) 1780 vrele(fdirp); 1781 if (tdirp) 1782 vrele(tdirp); 1783 if (nd->nd_flag & ND_NFSV3) { 1784 nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft); 1785 nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft); 1786 } else if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) { 1787 NFSM_BUILD(tl, u_int32_t *, 10 * NFSX_UNSIGNED); 1788 *tl++ = newnfs_false; 1789 txdr_hyper(fdirfor.na_filerev, tl); 1790 tl += 2; 1791 txdr_hyper(fdiraft.na_filerev, tl); 1792 tl += 2; 1793 *tl++ = newnfs_false; 1794 txdr_hyper(tdirfor.na_filerev, tl); 1795 tl += 2; 1796 txdr_hyper(tdiraft.na_filerev, tl); 1797 } 1798 1799 out: 1800 NFSEXITCODE2(error, nd); 1801 return (error); 1802 } 1803 1804 /* 1805 * nfs link service 1806 */ 1807 int 1808 nfsrvd_link(struct nfsrv_descript *nd, int isdgram, 1809 vnode_t vp, vnode_t tovp, struct nfsexstuff *exp, struct nfsexstuff *toexp) 1810 { 1811 struct nameidata named; 1812 u_int32_t *tl; 1813 int error = 0, dirfor_ret = 1, diraft_ret = 1, getret = 1; 1814 vnode_t dirp = NULL, dp = NULL; 1815 struct nfsvattr dirfor, diraft, at; 1816 struct nfsexstuff tnes; 1817 struct nfsrvfh dfh; 1818 char *bufp; 1819 u_long *hashp; 1820 struct thread *p = curthread; 1821 nfsquad_t clientid; 1822 1823 if (nd->nd_repstat) { 1824 nfsrv_postopattr(nd, getret, &at); 1825 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1826 goto out; 1827 } 1828 if ((vn_irflag_read(vp) & (VIRF_NAMEDDIR | VIRF_NAMEDATTR)) != 0 || 1829 (tovp != NULL && 1830 (vn_irflag_read(tovp) & (VIRF_NAMEDDIR | VIRF_NAMEDATTR)) != 0)) { 1831 nd->nd_repstat = NFSERR_INVAL; 1832 if (tovp != NULL) 1833 vrele(tovp); 1834 } 1835 NFSVOPUNLOCK(vp); 1836 if (!nd->nd_repstat && vp->v_type == VDIR) { 1837 if (nd->nd_flag & ND_NFSV4) 1838 nd->nd_repstat = NFSERR_ISDIR; 1839 else 1840 nd->nd_repstat = NFSERR_INVAL; 1841 if (tovp) 1842 vrele(tovp); 1843 } 1844 if (!nd->nd_repstat) { 1845 if (nd->nd_flag & ND_NFSV4) { 1846 dp = tovp; 1847 tnes = *toexp; 1848 } else { 1849 error = nfsrv_mtofh(nd, &dfh); 1850 if (error) { 1851 vrele(vp); 1852 /* tovp is always NULL unless NFSv4 */ 1853 goto out; 1854 } 1855 nfsd_fhtovp(nd, &dfh, LK_EXCLUSIVE, &dp, &tnes, NULL, 1856 0, -1); 1857 if (dp) 1858 NFSVOPUNLOCK(dp); 1859 } 1860 } 1861 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, LOCKPARENT | NOCACHE); 1862 if (!nd->nd_repstat) { 1863 nfsvno_setpathbuf(&named, &bufp, &hashp); 1864 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 1865 if (error) { 1866 vrele(vp); 1867 if (dp) 1868 vrele(dp); 1869 nfsvno_relpathbuf(&named); 1870 goto out; 1871 } 1872 if (!nd->nd_repstat) { 1873 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, &tnes, 1874 &dirp); 1875 } else { 1876 if (dp) 1877 vrele(dp); 1878 nfsvno_relpathbuf(&named); 1879 } 1880 } 1881 if (dirp) { 1882 if (nd->nd_flag & ND_NFSV2) { 1883 vrele(dirp); 1884 dirp = NULL; 1885 } else { 1886 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, 1887 NULL); 1888 } 1889 } 1890 if (!nd->nd_repstat) { 1891 clientid.qval = 0; 1892 if ((nd->nd_flag & (ND_IMPLIEDCLID | ND_NFSV41)) == 1893 (ND_IMPLIEDCLID | ND_NFSV41)) 1894 clientid.qval = nd->nd_clientid.qval; 1895 nd->nd_repstat = nfsvno_link(&named, vp, clientid, nd->nd_cred, 1896 p, exp); 1897 } 1898 if (nd->nd_flag & ND_NFSV3) 1899 getret = nfsvno_getattr(vp, &at, nd, p, 0, NULL); 1900 if (dirp) { 1901 diraft_ret = nfsvno_getattr(dirp, &diraft, nd, p, 0, NULL); 1902 vrele(dirp); 1903 } 1904 vrele(vp); 1905 if (nd->nd_flag & ND_NFSV3) { 1906 nfsrv_postopattr(nd, getret, &at); 1907 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1908 } else if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) { 1909 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1910 *tl++ = newnfs_false; 1911 txdr_hyper(dirfor.na_filerev, tl); 1912 tl += 2; 1913 txdr_hyper(diraft.na_filerev, tl); 1914 } 1915 1916 out: 1917 NFSEXITCODE2(error, nd); 1918 return (error); 1919 } 1920 1921 /* 1922 * nfs symbolic link service 1923 */ 1924 int 1925 nfsrvd_symlink(struct nfsrv_descript *nd, __unused int isdgram, 1926 vnode_t dp, vnode_t *vpp, fhandle_t *fhp, struct nfsexstuff *exp) 1927 { 1928 struct nfsvattr nva, dirfor, diraft; 1929 struct nameidata named; 1930 int error = 0, dirfor_ret = 1, diraft_ret = 1, pathlen; 1931 vnode_t dirp = NULL; 1932 char *bufp, *pathcp = NULL; 1933 u_long *hashp; 1934 struct thread *p = curthread; 1935 1936 if (nd->nd_repstat) { 1937 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1938 goto out; 1939 } 1940 if (vpp) 1941 *vpp = NULL; 1942 NFSVNO_ATTRINIT(&nva); 1943 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, 1944 LOCKPARENT | NOCACHE); 1945 nfsvno_setpathbuf(&named, &bufp, &hashp); 1946 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 1947 if (!error && !nd->nd_repstat) 1948 error = nfsvno_getsymlink(nd, &nva, p, &pathcp, &pathlen); 1949 if (error) { 1950 vrele(dp); 1951 nfsvno_relpathbuf(&named); 1952 goto out; 1953 } 1954 if (!nd->nd_repstat) { 1955 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, &dirp); 1956 } else { 1957 vrele(dp); 1958 nfsvno_relpathbuf(&named); 1959 } 1960 if (dirp != NULL && !(nd->nd_flag & ND_NFSV3)) { 1961 vrele(dirp); 1962 dirp = NULL; 1963 } 1964 1965 /* 1966 * And call nfsrvd_symlinksub() to do the common code. It will 1967 * return EBADRPC upon a parsing error, 0 otherwise. 1968 */ 1969 if (!nd->nd_repstat) { 1970 if (dirp != NULL) 1971 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, 1972 NULL); 1973 nfsrvd_symlinksub(nd, &named, &nva, fhp, vpp, dirp, 1974 &dirfor, &diraft, &diraft_ret, NULL, NULL, p, exp, 1975 pathcp, pathlen); 1976 } else if (dirp != NULL) { 1977 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, NULL); 1978 vrele(dirp); 1979 } 1980 if (pathcp) 1981 free(pathcp, M_TEMP); 1982 1983 if (nd->nd_flag & ND_NFSV3) { 1984 if (!nd->nd_repstat) { 1985 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1); 1986 nfsrv_postopattr(nd, 0, &nva); 1987 } 1988 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 1989 } 1990 1991 out: 1992 NFSEXITCODE2(error, nd); 1993 return (error); 1994 } 1995 1996 /* 1997 * Common code for creating a symbolic link. 1998 */ 1999 static void 2000 nfsrvd_symlinksub(struct nfsrv_descript *nd, struct nameidata *ndp, 2001 struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp, 2002 vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp, 2003 int *diraft_retp, nfsattrbit_t *attrbitp, 2004 NFSACL_T *aclp, NFSPROC_T *p, struct nfsexstuff *exp, char *pathcp, 2005 int pathlen) 2006 { 2007 u_int32_t *tl; 2008 2009 nd->nd_repstat = nfsvno_symlink(ndp, nvap, pathcp, pathlen, 2010 !(nd->nd_flag & ND_NFSV2), nd->nd_saveduid, nd->nd_cred, p, exp); 2011 if (!nd->nd_repstat && !(nd->nd_flag & ND_NFSV2)) { 2012 nfsrv_fixattr(nd, ndp->ni_vp, nvap, aclp, p, attrbitp, exp); 2013 if (nd->nd_flag & ND_NFSV3) { 2014 nd->nd_repstat = nfsvno_getfh(ndp->ni_vp, fhp, p); 2015 if (!nd->nd_repstat) 2016 nd->nd_repstat = nfsvno_getattr(ndp->ni_vp, 2017 nvap, nd, p, 1, NULL); 2018 } 2019 if (vpp != NULL && nd->nd_repstat == 0) { 2020 NFSVOPUNLOCK(ndp->ni_vp); 2021 *vpp = ndp->ni_vp; 2022 } else 2023 vput(ndp->ni_vp); 2024 } 2025 if (dirp) { 2026 *diraft_retp = nfsvno_getattr(dirp, diraftp, nd, p, 0, NULL); 2027 vrele(dirp); 2028 } 2029 if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) { 2030 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2031 *tl++ = newnfs_false; 2032 txdr_hyper(dirforp->na_filerev, tl); 2033 tl += 2; 2034 txdr_hyper(diraftp->na_filerev, tl); 2035 (void) nfsrv_putattrbit(nd, attrbitp); 2036 } 2037 2038 NFSEXITCODE2(0, nd); 2039 } 2040 2041 /* 2042 * nfs mkdir service 2043 */ 2044 int 2045 nfsrvd_mkdir(struct nfsrv_descript *nd, __unused int isdgram, 2046 vnode_t dp, vnode_t *vpp, fhandle_t *fhp, struct nfsexstuff *exp) 2047 { 2048 struct nfsvattr nva, dirfor, diraft; 2049 struct nameidata named; 2050 u_int32_t *tl; 2051 int error = 0, dirfor_ret = 1, diraft_ret = 1; 2052 vnode_t dirp = NULL; 2053 char *bufp; 2054 u_long *hashp; 2055 struct thread *p = curthread; 2056 2057 if (nd->nd_repstat) { 2058 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 2059 goto out; 2060 } 2061 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, LOCKPARENT | NOCACHE); 2062 nfsvno_setpathbuf(&named, &bufp, &hashp); 2063 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 2064 if (error) 2065 goto nfsmout; 2066 if (!nd->nd_repstat) { 2067 NFSVNO_ATTRINIT(&nva); 2068 if (nd->nd_flag & ND_NFSV3) { 2069 error = nfsrv_sattr(nd, NULL, &nva, NULL, NULL, p); 2070 if (error) 2071 goto nfsmout; 2072 } else { 2073 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2074 nva.na_mode = nfstov_mode(*tl++); 2075 } 2076 } 2077 if (!nd->nd_repstat) { 2078 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, &dirp); 2079 } else { 2080 vrele(dp); 2081 nfsvno_relpathbuf(&named); 2082 } 2083 if (dirp != NULL && !(nd->nd_flag & ND_NFSV3)) { 2084 vrele(dirp); 2085 dirp = NULL; 2086 } 2087 if (nd->nd_repstat) { 2088 if (dirp != NULL) { 2089 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, 2090 NULL); 2091 vrele(dirp); 2092 } 2093 if (nd->nd_flag & ND_NFSV3) 2094 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, 2095 &diraft); 2096 goto out; 2097 } 2098 if (dirp != NULL) 2099 dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd, p, 0, NULL); 2100 2101 /* 2102 * Call nfsrvd_mkdirsub() for the code common to V4 as well. 2103 */ 2104 nfsrvd_mkdirsub(nd, &named, &nva, fhp, vpp, dirp, &dirfor, &diraft, 2105 &diraft_ret, NULL, NULL, p, exp); 2106 2107 if (nd->nd_flag & ND_NFSV3) { 2108 if (!nd->nd_repstat) { 2109 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1); 2110 nfsrv_postopattr(nd, 0, &nva); 2111 } 2112 nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft); 2113 } else if (!nd->nd_repstat) { 2114 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0); 2115 nfsrv_fillattr(nd, &nva); 2116 } 2117 2118 out: 2119 NFSEXITCODE2(0, nd); 2120 return (0); 2121 nfsmout: 2122 vrele(dp); 2123 nfsvno_relpathbuf(&named); 2124 NFSEXITCODE2(error, nd); 2125 return (error); 2126 } 2127 2128 /* 2129 * Code common to mkdir for V2,3 and 4. 2130 */ 2131 static void 2132 nfsrvd_mkdirsub(struct nfsrv_descript *nd, struct nameidata *ndp, 2133 struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp, 2134 vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp, 2135 int *diraft_retp, nfsattrbit_t *attrbitp, NFSACL_T *aclp, 2136 NFSPROC_T *p, struct nfsexstuff *exp) 2137 { 2138 vnode_t vp; 2139 u_int32_t *tl; 2140 2141 NFSVNO_SETATTRVAL(nvap, type, VDIR); 2142 nd->nd_repstat = nfsvno_mkdir(ndp, nvap, nd->nd_saveduid, 2143 nd->nd_cred, p, exp); 2144 if (!nd->nd_repstat) { 2145 vp = ndp->ni_vp; 2146 nfsrv_fixattr(nd, vp, nvap, aclp, p, attrbitp, exp); 2147 nd->nd_repstat = nfsvno_getfh(vp, fhp, p); 2148 if (!(nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) 2149 nd->nd_repstat = nfsvno_getattr(vp, nvap, nd, p, 1, 2150 NULL); 2151 if (vpp && !nd->nd_repstat) { 2152 NFSVOPUNLOCK(vp); 2153 *vpp = vp; 2154 } else { 2155 vput(vp); 2156 } 2157 } 2158 if (dirp) { 2159 *diraft_retp = nfsvno_getattr(dirp, diraftp, nd, p, 0, NULL); 2160 vrele(dirp); 2161 } 2162 if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) { 2163 NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2164 *tl++ = newnfs_false; 2165 txdr_hyper(dirforp->na_filerev, tl); 2166 tl += 2; 2167 txdr_hyper(diraftp->na_filerev, tl); 2168 (void) nfsrv_putattrbit(nd, attrbitp); 2169 } 2170 2171 NFSEXITCODE2(0, nd); 2172 } 2173 2174 /* 2175 * nfs commit service 2176 */ 2177 int 2178 nfsrvd_commit(struct nfsrv_descript *nd, __unused int isdgram, 2179 vnode_t vp, __unused struct nfsexstuff *exp) 2180 { 2181 struct nfsvattr bfor, aft; 2182 u_int32_t *tl; 2183 int error = 0, for_ret = 1, aft_ret = 1, cnt; 2184 u_int64_t off; 2185 struct thread *p = curthread; 2186 2187 if (nd->nd_repstat) { 2188 nfsrv_wcc(nd, for_ret, &bfor, aft_ret, &aft); 2189 goto out; 2190 } 2191 2192 /* Return NFSERR_ISDIR in NFSv4 when commit on a directory. */ 2193 if (vp->v_type != VREG) { 2194 if (nd->nd_flag & ND_NFSV3) 2195 error = NFSERR_NOTSUPP; 2196 else 2197 error = (vp->v_type == VDIR) ? NFSERR_ISDIR : NFSERR_INVAL; 2198 goto nfsmout; 2199 } 2200 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 2201 2202 /* 2203 * XXX At this time VOP_FSYNC() does not accept offset and byte 2204 * count parameters, so these arguments are useless (someday maybe). 2205 */ 2206 off = fxdr_hyper(tl); 2207 tl += 2; 2208 cnt = fxdr_unsigned(int, *tl); 2209 if (nd->nd_flag & ND_NFSV3) 2210 for_ret = nfsvno_getattr(vp, &bfor, nd, p, 1, NULL); 2211 nd->nd_repstat = nfsvno_fsync(vp, off, cnt, nd->nd_cred, p); 2212 if (nd->nd_flag & ND_NFSV3) { 2213 aft_ret = nfsvno_getattr(vp, &aft, nd, p, 1, NULL); 2214 nfsrv_wcc(nd, for_ret, &bfor, aft_ret, &aft); 2215 } 2216 vput(vp); 2217 if (!nd->nd_repstat) { 2218 NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); 2219 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 2220 *tl = txdr_unsigned(nfsboottime.tv_usec); 2221 } 2222 2223 out: 2224 NFSEXITCODE2(0, nd); 2225 return (0); 2226 nfsmout: 2227 vput(vp); 2228 NFSEXITCODE2(error, nd); 2229 return (error); 2230 } 2231 2232 /* 2233 * nfs statfs service 2234 */ 2235 int 2236 nfsrvd_statfs(struct nfsrv_descript *nd, __unused int isdgram, 2237 vnode_t vp, __unused struct nfsexstuff *exp) 2238 { 2239 struct statfs *sf; 2240 u_int32_t *tl; 2241 int getret = 1; 2242 struct nfsvattr at; 2243 u_quad_t tval; 2244 struct thread *p = curthread; 2245 2246 sf = NULL; 2247 if (nd->nd_repstat) { 2248 nfsrv_postopattr(nd, getret, &at); 2249 goto out; 2250 } 2251 sf = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 2252 nd->nd_repstat = nfsvno_statfs(vp, sf); 2253 getret = nfsvno_getattr(vp, &at, nd, p, 1, NULL); 2254 vput(vp); 2255 if (nd->nd_flag & ND_NFSV3) 2256 nfsrv_postopattr(nd, getret, &at); 2257 if (nd->nd_repstat) 2258 goto out; 2259 if (nd->nd_flag & ND_NFSV2) { 2260 NFSM_BUILD(tl, u_int32_t *, NFSX_V2STATFS); 2261 *tl++ = txdr_unsigned(NFS_V2MAXDATA); 2262 *tl++ = txdr_unsigned(sf->f_bsize); 2263 *tl++ = txdr_unsigned(sf->f_blocks); 2264 *tl++ = txdr_unsigned(sf->f_bfree); 2265 *tl = txdr_unsigned(sf->f_bavail); 2266 } else { 2267 NFSM_BUILD(tl, u_int32_t *, NFSX_V3STATFS); 2268 tval = (u_quad_t)sf->f_blocks; 2269 tval *= (u_quad_t)sf->f_bsize; 2270 txdr_hyper(tval, tl); tl += 2; 2271 tval = (u_quad_t)sf->f_bfree; 2272 tval *= (u_quad_t)sf->f_bsize; 2273 txdr_hyper(tval, tl); tl += 2; 2274 tval = (u_quad_t)sf->f_bavail; 2275 tval *= (u_quad_t)sf->f_bsize; 2276 txdr_hyper(tval, tl); tl += 2; 2277 tval = (u_quad_t)sf->f_files; 2278 txdr_hyper(tval, tl); tl += 2; 2279 tval = (u_quad_t)sf->f_ffree; 2280 txdr_hyper(tval, tl); tl += 2; 2281 tval = (u_quad_t)sf->f_ffree; 2282 txdr_hyper(tval, tl); tl += 2; 2283 *tl = 0; 2284 } 2285 2286 out: 2287 free(sf, M_STATFS); 2288 NFSEXITCODE2(0, nd); 2289 return (0); 2290 } 2291 2292 /* 2293 * nfs fsinfo service 2294 */ 2295 int 2296 nfsrvd_fsinfo(struct nfsrv_descript *nd, int isdgram, 2297 vnode_t vp, __unused struct nfsexstuff *exp) 2298 { 2299 u_int32_t *tl; 2300 struct nfsfsinfo fs; 2301 int getret = 1; 2302 struct nfsvattr at; 2303 struct thread *p = curthread; 2304 2305 if (nd->nd_repstat) { 2306 nfsrv_postopattr(nd, getret, &at); 2307 goto out; 2308 } 2309 getret = nfsvno_getattr(vp, &at, nd, p, 1, NULL); 2310 nfsvno_getfs(&fs, isdgram); 2311 vput(vp); 2312 nfsrv_postopattr(nd, getret, &at); 2313 NFSM_BUILD(tl, u_int32_t *, NFSX_V3FSINFO); 2314 *tl++ = txdr_unsigned(fs.fs_rtmax); 2315 *tl++ = txdr_unsigned(fs.fs_rtpref); 2316 *tl++ = txdr_unsigned(fs.fs_rtmult); 2317 *tl++ = txdr_unsigned(fs.fs_wtmax); 2318 *tl++ = txdr_unsigned(fs.fs_wtpref); 2319 *tl++ = txdr_unsigned(fs.fs_wtmult); 2320 *tl++ = txdr_unsigned(fs.fs_dtpref); 2321 txdr_hyper(fs.fs_maxfilesize, tl); 2322 tl += 2; 2323 txdr_nfsv3time(&fs.fs_timedelta, tl); 2324 tl += 2; 2325 *tl = txdr_unsigned(fs.fs_properties); 2326 2327 out: 2328 NFSEXITCODE2(0, nd); 2329 return (0); 2330 } 2331 2332 /* 2333 * nfs pathconf service 2334 */ 2335 int 2336 nfsrvd_pathconf(struct nfsrv_descript *nd, __unused int isdgram, 2337 vnode_t vp, __unused struct nfsexstuff *exp) 2338 { 2339 struct nfsv3_pathconf *pc; 2340 int getret = 1; 2341 long linkmax, namemax, chownres, notrunc; 2342 struct nfsvattr at; 2343 struct thread *p = curthread; 2344 2345 if (nd->nd_repstat) { 2346 nfsrv_postopattr(nd, getret, &at); 2347 goto out; 2348 } 2349 nd->nd_repstat = nfsvno_pathconf(vp, _PC_LINK_MAX, &linkmax, 2350 nd->nd_cred, p); 2351 if (!nd->nd_repstat) 2352 nd->nd_repstat = nfsvno_pathconf(vp, _PC_NAME_MAX, &namemax, 2353 nd->nd_cred, p); 2354 if (!nd->nd_repstat) 2355 nd->nd_repstat=nfsvno_pathconf(vp, _PC_CHOWN_RESTRICTED, 2356 &chownres, nd->nd_cred, p); 2357 if (!nd->nd_repstat) 2358 nd->nd_repstat = nfsvno_pathconf(vp, _PC_NO_TRUNC, ¬runc, 2359 nd->nd_cred, p); 2360 getret = nfsvno_getattr(vp, &at, nd, p, 1, NULL); 2361 vput(vp); 2362 nfsrv_postopattr(nd, getret, &at); 2363 if (!nd->nd_repstat) { 2364 NFSM_BUILD(pc, struct nfsv3_pathconf *, NFSX_V3PATHCONF); 2365 pc->pc_linkmax = txdr_unsigned(linkmax); 2366 pc->pc_namemax = txdr_unsigned(namemax); 2367 pc->pc_notrunc = txdr_unsigned(notrunc); 2368 pc->pc_chownrestricted = txdr_unsigned(chownres); 2369 2370 /* 2371 * These should probably be supported by VOP_PATHCONF(), but 2372 * until msdosfs is exportable (why would you want to?), the 2373 * Unix defaults should be ok. 2374 */ 2375 pc->pc_caseinsensitive = newnfs_false; 2376 pc->pc_casepreserving = newnfs_true; 2377 } 2378 2379 out: 2380 NFSEXITCODE2(0, nd); 2381 return (0); 2382 } 2383 2384 /* 2385 * nfsv4 lock service 2386 */ 2387 int 2388 nfsrvd_lock(struct nfsrv_descript *nd, __unused int isdgram, 2389 vnode_t vp, struct nfsexstuff *exp) 2390 { 2391 u_int32_t *tl; 2392 int i; 2393 struct nfsstate *stp = NULL; 2394 struct nfslock *lop; 2395 struct nfslockconflict cf; 2396 int error = 0; 2397 u_short flags = NFSLCK_LOCK, lflags; 2398 u_int64_t offset, len; 2399 nfsv4stateid_t stateid; 2400 nfsquad_t clientid; 2401 struct thread *p = curthread; 2402 2403 NFSM_DISSECT(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 2404 i = fxdr_unsigned(int, *tl++); 2405 switch (i) { 2406 case NFSV4LOCKT_READW: 2407 flags |= NFSLCK_BLOCKING; 2408 case NFSV4LOCKT_READ: 2409 lflags = NFSLCK_READ; 2410 break; 2411 case NFSV4LOCKT_WRITEW: 2412 flags |= NFSLCK_BLOCKING; 2413 case NFSV4LOCKT_WRITE: 2414 lflags = NFSLCK_WRITE; 2415 break; 2416 default: 2417 nd->nd_repstat = NFSERR_BADXDR; 2418 goto nfsmout; 2419 } 2420 if (*tl++ == newnfs_true) 2421 flags |= NFSLCK_RECLAIM; 2422 offset = fxdr_hyper(tl); 2423 tl += 2; 2424 len = fxdr_hyper(tl); 2425 tl += 2; 2426 if (*tl == newnfs_true) 2427 flags |= NFSLCK_OPENTOLOCK; 2428 if (flags & NFSLCK_OPENTOLOCK) { 2429 NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED + NFSX_STATEID); 2430 i = fxdr_unsigned(int, *(tl+4+(NFSX_STATEID / NFSX_UNSIGNED))); 2431 if (i <= 0 || i > NFSV4_OPAQUELIMIT) { 2432 nd->nd_repstat = NFSERR_BADXDR; 2433 goto nfsmout; 2434 } 2435 stp = malloc(sizeof (struct nfsstate) + i, 2436 M_NFSDSTATE, M_WAITOK); 2437 stp->ls_ownerlen = i; 2438 stp->ls_op = nd->nd_rp; 2439 stp->ls_seq = fxdr_unsigned(int, *tl++); 2440 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 2441 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other, 2442 NFSX_STATEIDOTHER); 2443 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 2444 2445 /* 2446 * For the special stateid of other all 0s and seqid == 1, set 2447 * the stateid to the current stateid, if it is set. 2448 */ 2449 if ((nd->nd_flag & ND_NFSV41) != 0 && 2450 stp->ls_stateid.seqid == 1 && 2451 stp->ls_stateid.other[0] == 0 && 2452 stp->ls_stateid.other[1] == 0 && 2453 stp->ls_stateid.other[2] == 0) { 2454 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 2455 stp->ls_stateid = nd->nd_curstateid; 2456 stp->ls_stateid.seqid = 0; 2457 } else { 2458 nd->nd_repstat = NFSERR_BADSTATEID; 2459 goto nfsmout; 2460 } 2461 } 2462 2463 stp->ls_opentolockseq = fxdr_unsigned(int, *tl++); 2464 clientid.lval[0] = *tl++; 2465 clientid.lval[1] = *tl++; 2466 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 2467 if ((nd->nd_flag & ND_NFSV41) != 0) 2468 clientid.qval = nd->nd_clientid.qval; 2469 else if (nd->nd_clientid.qval != clientid.qval) 2470 printf("EEK3 multiple clids\n"); 2471 } else { 2472 if ((nd->nd_flag & ND_NFSV41) != 0) 2473 printf("EEK! no clientid from session\n"); 2474 nd->nd_flag |= ND_IMPLIEDCLID; 2475 nd->nd_clientid.qval = clientid.qval; 2476 } 2477 error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen); 2478 if (error) 2479 goto nfsmout; 2480 } else { 2481 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 2482 stp = malloc(sizeof (struct nfsstate), 2483 M_NFSDSTATE, M_WAITOK); 2484 stp->ls_ownerlen = 0; 2485 stp->ls_op = nd->nd_rp; 2486 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 2487 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other, 2488 NFSX_STATEIDOTHER); 2489 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 2490 2491 /* 2492 * For the special stateid of other all 0s and seqid == 1, set 2493 * the stateid to the current stateid, if it is set. 2494 */ 2495 if ((nd->nd_flag & ND_NFSV41) != 0 && 2496 stp->ls_stateid.seqid == 1 && 2497 stp->ls_stateid.other[0] == 0 && 2498 stp->ls_stateid.other[1] == 0 && 2499 stp->ls_stateid.other[2] == 0) { 2500 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 2501 stp->ls_stateid = nd->nd_curstateid; 2502 stp->ls_stateid.seqid = 0; 2503 } else { 2504 nd->nd_repstat = NFSERR_BADSTATEID; 2505 goto nfsmout; 2506 } 2507 } 2508 2509 stp->ls_seq = fxdr_unsigned(int, *tl); 2510 clientid.lval[0] = stp->ls_stateid.other[0]; 2511 clientid.lval[1] = stp->ls_stateid.other[1]; 2512 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 2513 if ((nd->nd_flag & ND_NFSV41) != 0) 2514 clientid.qval = nd->nd_clientid.qval; 2515 else if (nd->nd_clientid.qval != clientid.qval) 2516 printf("EEK4 multiple clids\n"); 2517 } else { 2518 if ((nd->nd_flag & ND_NFSV41) != 0) 2519 printf("EEK! no clientid from session\n"); 2520 nd->nd_flag |= ND_IMPLIEDCLID; 2521 nd->nd_clientid.qval = clientid.qval; 2522 } 2523 } 2524 lop = malloc(sizeof (struct nfslock), 2525 M_NFSDLOCK, M_WAITOK); 2526 lop->lo_first = offset; 2527 if (len == NFS64BITSSET) { 2528 lop->lo_end = NFS64BITSSET; 2529 } else { 2530 lop->lo_end = offset + len; 2531 if (lop->lo_end <= lop->lo_first) 2532 nd->nd_repstat = NFSERR_INVAL; 2533 } 2534 lop->lo_flags = lflags; 2535 stp->ls_flags = flags; 2536 stp->ls_uid = nd->nd_cred->cr_uid; 2537 2538 /* 2539 * Do basic access checking. 2540 */ 2541 if (!nd->nd_repstat && vp->v_type != VREG) { 2542 if (vp->v_type == VDIR) 2543 nd->nd_repstat = NFSERR_ISDIR; 2544 else 2545 nd->nd_repstat = NFSERR_INVAL; 2546 } 2547 if (!nd->nd_repstat) { 2548 if (lflags & NFSLCK_WRITE) { 2549 nd->nd_repstat = nfsvno_accchk(vp, VWRITE, 2550 nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER, 2551 NFSACCCHK_VPISLOCKED, NULL); 2552 } else { 2553 nd->nd_repstat = nfsvno_accchk(vp, VREAD, 2554 nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER, 2555 NFSACCCHK_VPISLOCKED, NULL); 2556 if (nd->nd_repstat) 2557 nd->nd_repstat = nfsvno_accchk(vp, VEXEC, 2558 nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER, 2559 NFSACCCHK_VPISLOCKED, NULL); 2560 } 2561 } 2562 2563 /* 2564 * We call nfsrv_lockctrl() even if nd_repstat set, so that the 2565 * seqid# gets updated. nfsrv_lockctrl() will return the value 2566 * of nd_repstat, if it gets that far. 2567 */ 2568 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, &cf, clientid, 2569 &stateid, exp, nd, p); 2570 if (lop) 2571 free(lop, M_NFSDLOCK); 2572 if (stp) 2573 free(stp, M_NFSDSTATE); 2574 if (!nd->nd_repstat) { 2575 /* For NFSv4.1, set the Current StateID. */ 2576 if ((nd->nd_flag & ND_NFSV41) != 0) { 2577 nd->nd_curstateid = stateid; 2578 nd->nd_flag |= ND_CURSTATEID; 2579 } 2580 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2581 *tl++ = txdr_unsigned(stateid.seqid); 2582 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER); 2583 } else if (nd->nd_repstat == NFSERR_DENIED) { 2584 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 2585 txdr_hyper(cf.cl_first, tl); 2586 tl += 2; 2587 if (cf.cl_end == NFS64BITSSET) 2588 len = NFS64BITSSET; 2589 else 2590 len = cf.cl_end - cf.cl_first; 2591 txdr_hyper(len, tl); 2592 tl += 2; 2593 if (cf.cl_flags == NFSLCK_WRITE) 2594 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 2595 else 2596 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 2597 *tl++ = stateid.other[0]; 2598 *tl = stateid.other[1]; 2599 (void) nfsm_strtom(nd, cf.cl_owner, cf.cl_ownerlen); 2600 } 2601 vput(vp); 2602 NFSEXITCODE2(0, nd); 2603 return (0); 2604 nfsmout: 2605 vput(vp); 2606 if (stp) 2607 free(stp, M_NFSDSTATE); 2608 NFSEXITCODE2(error, nd); 2609 return (error); 2610 } 2611 2612 /* 2613 * nfsv4 lock test service 2614 */ 2615 int 2616 nfsrvd_lockt(struct nfsrv_descript *nd, __unused int isdgram, 2617 vnode_t vp, struct nfsexstuff *exp) 2618 { 2619 u_int32_t *tl; 2620 int i; 2621 struct nfsstate *stp = NULL; 2622 struct nfslock lo, *lop = &lo; 2623 struct nfslockconflict cf; 2624 int error = 0; 2625 nfsv4stateid_t stateid; 2626 nfsquad_t clientid; 2627 u_int64_t len; 2628 struct thread *p = curthread; 2629 2630 NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 2631 i = fxdr_unsigned(int, *(tl + 7)); 2632 if (i <= 0 || i > NFSV4_OPAQUELIMIT) { 2633 nd->nd_repstat = NFSERR_BADXDR; 2634 goto nfsmout; 2635 } 2636 stp = malloc(sizeof (struct nfsstate) + i, 2637 M_NFSDSTATE, M_WAITOK); 2638 stp->ls_ownerlen = i; 2639 stp->ls_op = NULL; 2640 stp->ls_flags = NFSLCK_TEST; 2641 stp->ls_uid = nd->nd_cred->cr_uid; 2642 i = fxdr_unsigned(int, *tl++); 2643 switch (i) { 2644 case NFSV4LOCKT_READW: 2645 stp->ls_flags |= NFSLCK_BLOCKING; 2646 case NFSV4LOCKT_READ: 2647 lo.lo_flags = NFSLCK_READ; 2648 break; 2649 case NFSV4LOCKT_WRITEW: 2650 stp->ls_flags |= NFSLCK_BLOCKING; 2651 case NFSV4LOCKT_WRITE: 2652 lo.lo_flags = NFSLCK_WRITE; 2653 break; 2654 default: 2655 nd->nd_repstat = NFSERR_BADXDR; 2656 goto nfsmout; 2657 } 2658 lo.lo_first = fxdr_hyper(tl); 2659 tl += 2; 2660 len = fxdr_hyper(tl); 2661 if (len == NFS64BITSSET) { 2662 lo.lo_end = NFS64BITSSET; 2663 } else { 2664 lo.lo_end = lo.lo_first + len; 2665 if (lo.lo_end <= lo.lo_first) 2666 nd->nd_repstat = NFSERR_INVAL; 2667 } 2668 tl += 2; 2669 clientid.lval[0] = *tl++; 2670 clientid.lval[1] = *tl; 2671 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 2672 if ((nd->nd_flag & ND_NFSV41) != 0) 2673 clientid.qval = nd->nd_clientid.qval; 2674 else if (nd->nd_clientid.qval != clientid.qval) 2675 printf("EEK5 multiple clids\n"); 2676 } else { 2677 if ((nd->nd_flag & ND_NFSV41) != 0) 2678 printf("EEK! no clientid from session\n"); 2679 nd->nd_flag |= ND_IMPLIEDCLID; 2680 nd->nd_clientid.qval = clientid.qval; 2681 } 2682 error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen); 2683 if (error) 2684 goto nfsmout; 2685 if (!nd->nd_repstat && vp->v_type != VREG) { 2686 if (vp->v_type == VDIR) 2687 nd->nd_repstat = NFSERR_ISDIR; 2688 else 2689 nd->nd_repstat = NFSERR_INVAL; 2690 } 2691 if (!nd->nd_repstat) 2692 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, &cf, clientid, 2693 &stateid, exp, nd, p); 2694 if (nd->nd_repstat) { 2695 if (nd->nd_repstat == NFSERR_DENIED) { 2696 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 2697 txdr_hyper(cf.cl_first, tl); 2698 tl += 2; 2699 if (cf.cl_end == NFS64BITSSET) 2700 len = NFS64BITSSET; 2701 else 2702 len = cf.cl_end - cf.cl_first; 2703 txdr_hyper(len, tl); 2704 tl += 2; 2705 if (cf.cl_flags == NFSLCK_WRITE) 2706 *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); 2707 else 2708 *tl++ = txdr_unsigned(NFSV4LOCKT_READ); 2709 *tl++ = stp->ls_stateid.other[0]; 2710 *tl = stp->ls_stateid.other[1]; 2711 (void) nfsm_strtom(nd, cf.cl_owner, cf.cl_ownerlen); 2712 } 2713 } 2714 vput(vp); 2715 if (stp) 2716 free(stp, M_NFSDSTATE); 2717 NFSEXITCODE2(0, nd); 2718 return (0); 2719 nfsmout: 2720 vput(vp); 2721 if (stp) 2722 free(stp, M_NFSDSTATE); 2723 NFSEXITCODE2(error, nd); 2724 return (error); 2725 } 2726 2727 /* 2728 * nfsv4 unlock service 2729 */ 2730 int 2731 nfsrvd_locku(struct nfsrv_descript *nd, __unused int isdgram, 2732 vnode_t vp, struct nfsexstuff *exp) 2733 { 2734 u_int32_t *tl; 2735 int i; 2736 struct nfsstate *stp; 2737 struct nfslock *lop; 2738 int error = 0; 2739 nfsv4stateid_t stateid; 2740 nfsquad_t clientid; 2741 u_int64_t len; 2742 struct thread *p = curthread; 2743 2744 NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED + NFSX_STATEID); 2745 stp = malloc(sizeof (struct nfsstate), 2746 M_NFSDSTATE, M_WAITOK); 2747 lop = malloc(sizeof (struct nfslock), 2748 M_NFSDLOCK, M_WAITOK); 2749 stp->ls_flags = NFSLCK_UNLOCK; 2750 lop->lo_flags = NFSLCK_UNLOCK; 2751 stp->ls_op = nd->nd_rp; 2752 i = fxdr_unsigned(int, *tl++); 2753 switch (i) { 2754 case NFSV4LOCKT_READW: 2755 stp->ls_flags |= NFSLCK_BLOCKING; 2756 case NFSV4LOCKT_READ: 2757 break; 2758 case NFSV4LOCKT_WRITEW: 2759 stp->ls_flags |= NFSLCK_BLOCKING; 2760 case NFSV4LOCKT_WRITE: 2761 break; 2762 default: 2763 nd->nd_repstat = NFSERR_BADXDR; 2764 free(stp, M_NFSDSTATE); 2765 free(lop, M_NFSDLOCK); 2766 goto nfsmout; 2767 } 2768 stp->ls_ownerlen = 0; 2769 stp->ls_uid = nd->nd_cred->cr_uid; 2770 stp->ls_seq = fxdr_unsigned(int, *tl++); 2771 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 2772 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other, 2773 NFSX_STATEIDOTHER); 2774 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 2775 2776 /* 2777 * For the special stateid of other all 0s and seqid == 1, set the 2778 * stateid to the current stateid, if it is set. 2779 */ 2780 if ((nd->nd_flag & ND_NFSV41) != 0 && stp->ls_stateid.seqid == 1 && 2781 stp->ls_stateid.other[0] == 0 && stp->ls_stateid.other[1] == 0 && 2782 stp->ls_stateid.other[2] == 0) { 2783 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 2784 stp->ls_stateid = nd->nd_curstateid; 2785 stp->ls_stateid.seqid = 0; 2786 } else { 2787 nd->nd_repstat = NFSERR_BADSTATEID; 2788 free(stp, M_NFSDSTATE); 2789 free(lop, M_NFSDLOCK); 2790 goto nfsmout; 2791 } 2792 } 2793 2794 lop->lo_first = fxdr_hyper(tl); 2795 tl += 2; 2796 len = fxdr_hyper(tl); 2797 if (len == NFS64BITSSET) { 2798 lop->lo_end = NFS64BITSSET; 2799 } else { 2800 lop->lo_end = lop->lo_first + len; 2801 if (lop->lo_end <= lop->lo_first) 2802 nd->nd_repstat = NFSERR_INVAL; 2803 } 2804 clientid.lval[0] = stp->ls_stateid.other[0]; 2805 clientid.lval[1] = stp->ls_stateid.other[1]; 2806 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 2807 if ((nd->nd_flag & ND_NFSV41) != 0) 2808 clientid.qval = nd->nd_clientid.qval; 2809 else if (nd->nd_clientid.qval != clientid.qval) 2810 printf("EEK6 multiple clids\n"); 2811 } else { 2812 if ((nd->nd_flag & ND_NFSV41) != 0) 2813 printf("EEK! no clientid from session\n"); 2814 nd->nd_flag |= ND_IMPLIEDCLID; 2815 nd->nd_clientid.qval = clientid.qval; 2816 } 2817 if (!nd->nd_repstat && vp->v_type != VREG) { 2818 if (vp->v_type == VDIR) 2819 nd->nd_repstat = NFSERR_ISDIR; 2820 else 2821 nd->nd_repstat = NFSERR_INVAL; 2822 } 2823 /* 2824 * Call nfsrv_lockctrl() even if nd_repstat is set, so that the 2825 * seqid# gets incremented. nfsrv_lockctrl() will return the 2826 * value of nd_repstat, if it gets that far. 2827 */ 2828 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid, 2829 &stateid, exp, nd, p); 2830 if (stp) 2831 free(stp, M_NFSDSTATE); 2832 if (lop) 2833 free(lop, M_NFSDLOCK); 2834 if (!nd->nd_repstat) { 2835 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 2836 *tl++ = txdr_unsigned(stateid.seqid); 2837 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER); 2838 } 2839 nfsmout: 2840 vput(vp); 2841 NFSEXITCODE2(error, nd); 2842 return (error); 2843 } 2844 2845 /* 2846 * nfsv4 open service 2847 */ 2848 int 2849 nfsrvd_open(struct nfsrv_descript *nd, __unused int isdgram, 2850 vnode_t dp, vnode_t *vpp, __unused fhandle_t *fhp, struct nfsexstuff *exp) 2851 { 2852 u_int32_t *tl; 2853 int i, retext; 2854 struct nfsstate *stp = NULL; 2855 int error = 0, create, claim, exclusive_flag = 0, override; 2856 u_int32_t rflags = NFSV4OPEN_LOCKTYPEPOSIX, acemask; 2857 int how = NFSCREATE_UNCHECKED; 2858 int32_t cverf[2], tverf[2] = { 0, 0 }; 2859 vnode_t vp = NULL, dirp = NULL; 2860 struct nfsvattr nva, dirfor, diraft; 2861 struct nameidata named; 2862 nfsv4stateid_t stateid, delegstateid; 2863 nfsattrbit_t attrbits; 2864 nfsquad_t clientid; 2865 char *bufp = NULL; 2866 u_long *hashp; 2867 NFSACL_T *aclp = NULL; 2868 struct thread *p = curthread; 2869 bool done_namei; 2870 2871 #ifdef NFS4_ACL_EXTATTR_NAME 2872 aclp = acl_alloc(M_WAITOK); 2873 aclp->acl_cnt = 0; 2874 #endif 2875 NFSZERO_ATTRBIT(&attrbits); 2876 done_namei = false; 2877 named.ni_cnd.cn_nameiop = 0; 2878 NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 2879 i = fxdr_unsigned(int, *(tl + 5)); 2880 if (i <= 0 || i > NFSV4_OPAQUELIMIT) { 2881 nd->nd_repstat = NFSERR_BADXDR; 2882 goto nfsmout; 2883 } 2884 stp = malloc(sizeof (struct nfsstate) + i, 2885 M_NFSDSTATE, M_WAITOK); 2886 stp->ls_ownerlen = i; 2887 stp->ls_op = nd->nd_rp; 2888 stp->ls_flags = NFSLCK_OPEN; 2889 stp->ls_uid = nd->nd_cred->cr_uid; 2890 stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++); 2891 i = fxdr_unsigned(int, *tl++); 2892 retext = 0; 2893 if ((i & (NFSV4OPEN_WANTDELEGMASK | NFSV4OPEN_WANTSIGNALDELEG | 2894 NFSV4OPEN_WANTPUSHDELEG)) != 0 && (nd->nd_flag & ND_NFSV41) != 0) { 2895 retext = 1; 2896 /* For now, ignore these. */ 2897 i &= ~(NFSV4OPEN_WANTPUSHDELEG | NFSV4OPEN_WANTSIGNALDELEG); 2898 switch (i & NFSV4OPEN_WANTDELEGMASK) { 2899 case NFSV4OPEN_WANTANYDELEG: 2900 stp->ls_flags |= (NFSLCK_WANTRDELEG | 2901 NFSLCK_WANTWDELEG); 2902 i &= ~NFSV4OPEN_WANTDELEGMASK; 2903 break; 2904 case NFSV4OPEN_WANTREADDELEG: 2905 stp->ls_flags |= NFSLCK_WANTRDELEG; 2906 i &= ~NFSV4OPEN_WANTDELEGMASK; 2907 break; 2908 case NFSV4OPEN_WANTWRITEDELEG: 2909 stp->ls_flags |= NFSLCK_WANTWDELEG; 2910 i &= ~NFSV4OPEN_WANTDELEGMASK; 2911 break; 2912 case NFSV4OPEN_WANTNODELEG: 2913 stp->ls_flags |= NFSLCK_WANTNODELEG; 2914 i &= ~NFSV4OPEN_WANTDELEGMASK; 2915 break; 2916 case NFSV4OPEN_WANTCANCEL: 2917 printf("NFSv4: ignore Open WantCancel\n"); 2918 i &= ~NFSV4OPEN_WANTDELEGMASK; 2919 break; 2920 default: 2921 /* nd_repstat will be set to NFSERR_INVAL below. */ 2922 break; 2923 } 2924 } 2925 switch (i) { 2926 case NFSV4OPEN_ACCESSREAD: 2927 stp->ls_flags |= NFSLCK_READACCESS; 2928 break; 2929 case NFSV4OPEN_ACCESSWRITE: 2930 stp->ls_flags |= NFSLCK_WRITEACCESS; 2931 break; 2932 case NFSV4OPEN_ACCESSBOTH: 2933 stp->ls_flags |= (NFSLCK_READACCESS | NFSLCK_WRITEACCESS); 2934 break; 2935 default: 2936 nd->nd_repstat = NFSERR_INVAL; 2937 } 2938 i = fxdr_unsigned(int, *tl++); 2939 switch (i) { 2940 case NFSV4OPEN_DENYNONE: 2941 break; 2942 case NFSV4OPEN_DENYREAD: 2943 stp->ls_flags |= NFSLCK_READDENY; 2944 break; 2945 case NFSV4OPEN_DENYWRITE: 2946 stp->ls_flags |= NFSLCK_WRITEDENY; 2947 break; 2948 case NFSV4OPEN_DENYBOTH: 2949 stp->ls_flags |= (NFSLCK_READDENY | NFSLCK_WRITEDENY); 2950 break; 2951 default: 2952 nd->nd_repstat = NFSERR_INVAL; 2953 } 2954 clientid.lval[0] = *tl++; 2955 clientid.lval[1] = *tl; 2956 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 2957 if ((nd->nd_flag & ND_NFSV41) != 0) 2958 clientid.qval = nd->nd_clientid.qval; 2959 else if (nd->nd_clientid.qval != clientid.qval) 2960 printf("EEK7 multiple clids\n"); 2961 } else { 2962 if ((nd->nd_flag & ND_NFSV41) != 0) 2963 printf("EEK! no clientid from session\n"); 2964 nd->nd_flag |= ND_IMPLIEDCLID; 2965 nd->nd_clientid.qval = clientid.qval; 2966 } 2967 error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen); 2968 if (error) 2969 goto nfsmout; 2970 NFSVNO_ATTRINIT(&nva); 2971 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2972 create = fxdr_unsigned(int, *tl); 2973 if (!nd->nd_repstat) 2974 nd->nd_repstat = nfsvno_getattr(dp, &dirfor, nd, p, 0, NULL); 2975 if (create == NFSV4OPEN_CREATE) { 2976 nva.na_type = VREG; 2977 nva.na_mode = 0; 2978 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 2979 how = fxdr_unsigned(int, *tl); 2980 switch (how) { 2981 case NFSCREATE_UNCHECKED: 2982 case NFSCREATE_GUARDED: 2983 error = nfsv4_sattr(nd, NULL, &nva, &attrbits, aclp, p); 2984 if (error) 2985 goto nfsmout; 2986 /* 2987 * If the na_gid being set is the same as that of 2988 * the directory it is going in, clear it, since 2989 * that is what will be set by default. This allows 2990 * a user that isn't in that group to do the create. 2991 */ 2992 if (!nd->nd_repstat && NFSVNO_ISSETGID(&nva) && 2993 nva.na_gid == dirfor.na_gid) 2994 NFSVNO_UNSET(&nva, gid); 2995 if (!nd->nd_repstat) 2996 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva); 2997 break; 2998 case NFSCREATE_EXCLUSIVE: 2999 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3000 cverf[0] = *tl++; 3001 cverf[1] = *tl; 3002 if ((vn_irflag_read(dp) & VIRF_NAMEDDIR) != 0) 3003 nd->nd_repstat = NFSERR_INVAL; 3004 break; 3005 case NFSCREATE_EXCLUSIVE41: 3006 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); 3007 cverf[0] = *tl++; 3008 cverf[1] = *tl; 3009 error = nfsv4_sattr(nd, NULL, &nva, &attrbits, aclp, p); 3010 if (error != 0) 3011 goto nfsmout; 3012 if ((vn_irflag_read(dp) & VIRF_NAMEDDIR) != 0 || 3013 NFSISSET_ATTRBIT(&attrbits, 3014 NFSATTRBIT_TIMEACCESSSET)) 3015 nd->nd_repstat = NFSERR_INVAL; 3016 /* 3017 * If the na_gid being set is the same as that of 3018 * the directory it is going in, clear it, since 3019 * that is what will be set by default. This allows 3020 * a user that isn't in that group to do the create. 3021 */ 3022 if (nd->nd_repstat == 0 && NFSVNO_ISSETGID(&nva) && 3023 nva.na_gid == dirfor.na_gid) 3024 NFSVNO_UNSET(&nva, gid); 3025 if (nd->nd_repstat == 0) 3026 nd->nd_repstat = nfsrv_checkuidgid(nd, &nva); 3027 break; 3028 default: 3029 nd->nd_repstat = NFSERR_BADXDR; 3030 goto nfsmout; 3031 } 3032 } else if (create != NFSV4OPEN_NOCREATE) { 3033 nd->nd_repstat = NFSERR_BADXDR; 3034 goto nfsmout; 3035 } 3036 3037 /* 3038 * Now, handle the claim, which usually includes looking up a 3039 * name in the directory referenced by dp. The exception is 3040 * NFSV4OPEN_CLAIMPREVIOUS. 3041 */ 3042 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3043 claim = fxdr_unsigned(int, *tl); 3044 if (claim == NFSV4OPEN_CLAIMDELEGATECUR || claim == 3045 NFSV4OPEN_CLAIMDELEGATECURFH) { 3046 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3047 stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 3048 NFSBCOPY((caddr_t)tl,(caddr_t)stateid.other,NFSX_STATEIDOTHER); 3049 stp->ls_flags |= NFSLCK_DELEGCUR; 3050 } else if (claim == NFSV4OPEN_CLAIMDELEGATEPREV || claim == 3051 NFSV4OPEN_CLAIMDELEGATEPREVFH) { 3052 stp->ls_flags |= NFSLCK_DELEGPREV; 3053 } 3054 if (claim == NFSV4OPEN_CLAIMNULL || claim == NFSV4OPEN_CLAIMDELEGATECUR 3055 || claim == NFSV4OPEN_CLAIMDELEGATEPREV) { 3056 if (!nd->nd_repstat && create == NFSV4OPEN_CREATE && 3057 claim != NFSV4OPEN_CLAIMNULL) 3058 nd->nd_repstat = NFSERR_INVAL; 3059 if (nd->nd_repstat) { 3060 nd->nd_repstat = nfsrv_opencheck(clientid, 3061 &stateid, stp, NULL, nd, p, nd->nd_repstat); 3062 goto nfsmout; 3063 } 3064 if (create == NFSV4OPEN_CREATE) 3065 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, 3066 LOCKPARENT | LOCKLEAF | NOCACHE); 3067 else 3068 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP, 3069 LOCKLEAF); 3070 nfsvno_setpathbuf(&named, &bufp, &hashp); 3071 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 3072 if (error) { 3073 vrele(dp); 3074 #ifdef NFS4_ACL_EXTATTR_NAME 3075 acl_free(aclp); 3076 #endif 3077 free(stp, M_NFSDSTATE); 3078 nfsvno_relpathbuf(&named); 3079 NFSEXITCODE2(error, nd); 3080 return (error); 3081 } 3082 if (!nd->nd_repstat) { 3083 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, 3084 &dirp); 3085 } else { 3086 vrele(dp); 3087 nfsvno_relpathbuf(&named); 3088 } 3089 if (create == NFSV4OPEN_CREATE) { 3090 switch (how) { 3091 case NFSCREATE_UNCHECKED: 3092 if (nd->nd_repstat == 0 && named.ni_vp != NULL) { 3093 /* 3094 * Clear the setable attribute bits, except 3095 * for Size, if it is being truncated. 3096 */ 3097 NFSZERO_ATTRBIT(&attrbits); 3098 if (NFSVNO_ISSETSIZE(&nva)) 3099 NFSSETBIT_ATTRBIT(&attrbits, 3100 NFSATTRBIT_SIZE); 3101 } 3102 break; 3103 case NFSCREATE_GUARDED: 3104 if (nd->nd_repstat == 0 && named.ni_vp != NULL) { 3105 nd->nd_repstat = EEXIST; 3106 done_namei = true; 3107 } 3108 break; 3109 case NFSCREATE_EXCLUSIVE: 3110 exclusive_flag = 1; 3111 if (nd->nd_repstat == 0 && named.ni_vp == NULL) 3112 nva.na_mode = 0; 3113 break; 3114 case NFSCREATE_EXCLUSIVE41: 3115 exclusive_flag = 1; 3116 break; 3117 } 3118 } 3119 nfsvno_open(nd, &named, clientid, &stateid, stp, 3120 &exclusive_flag, &nva, cverf, create, aclp, &attrbits, 3121 nd->nd_cred, done_namei, exp, &vp); 3122 } else if (claim == NFSV4OPEN_CLAIMPREVIOUS || claim == 3123 NFSV4OPEN_CLAIMFH || claim == NFSV4OPEN_CLAIMDELEGATECURFH || 3124 claim == NFSV4OPEN_CLAIMDELEGATEPREVFH) { 3125 if (claim == NFSV4OPEN_CLAIMPREVIOUS) { 3126 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 3127 i = fxdr_unsigned(int, *tl); 3128 switch (i) { 3129 case NFSV4OPEN_DELEGATEREAD: 3130 stp->ls_flags |= NFSLCK_DELEGREAD; 3131 break; 3132 case NFSV4OPEN_DELEGATEWRITE: 3133 stp->ls_flags |= NFSLCK_DELEGWRITE; 3134 case NFSV4OPEN_DELEGATENONE: 3135 break; 3136 default: 3137 nd->nd_repstat = NFSERR_BADXDR; 3138 goto nfsmout; 3139 } 3140 stp->ls_flags |= NFSLCK_RECLAIM; 3141 } else { 3142 if (nd->nd_repstat == 0 && create == NFSV4OPEN_CREATE) 3143 nd->nd_repstat = NFSERR_INVAL; 3144 } 3145 vp = dp; 3146 NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY); 3147 if (!VN_IS_DOOMED(vp)) 3148 nd->nd_repstat = nfsrv_opencheck(clientid, &stateid, 3149 stp, vp, nd, p, nd->nd_repstat); 3150 else 3151 nd->nd_repstat = NFSERR_PERM; 3152 } else { 3153 nd->nd_repstat = NFSERR_BADXDR; 3154 goto nfsmout; 3155 } 3156 3157 /* 3158 * Do basic access checking. 3159 */ 3160 if (!nd->nd_repstat && vp->v_type != VREG) { 3161 /* 3162 * The IETF working group decided that this is the correct 3163 * error return for all non-regular files. 3164 */ 3165 nd->nd_repstat = (vp->v_type == VDIR) ? NFSERR_ISDIR : NFSERR_SYMLINK; 3166 } 3167 3168 /* 3169 * If the Open is being done for a file that already exists, apply 3170 * normal permission checking including for the file owner, if 3171 * vfs.nfsd.v4openaccess is set. 3172 * Previously, the owner was always allowed to open the file to 3173 * be consistent with the NFS tradition of always allowing the 3174 * owner of the file to write to the file regardless of permissions. 3175 * It now appears that the Linux client expects the owner 3176 * permissions to be checked for opens that are not creating the 3177 * file. I believe the correct approach is to use the Access 3178 * operation's results to be consistent with NFSv3, but that is 3179 * not what the current Linux client appears to be doing. 3180 * Since both the Linux and OpenSolaris NFSv4 servers do this check, 3181 * I have enabled it by default. Since Linux does not apply this 3182 * check for claim_delegate_cur, this code does the same. 3183 * If this semantic change causes a problem, it can be disabled by 3184 * setting the sysctl vfs.nfsd.v4openaccess to 0 to re-enable the 3185 * previous semantics. 3186 */ 3187 if (nfsrv_openaccess && create == NFSV4OPEN_NOCREATE && 3188 (stp->ls_flags & NFSLCK_DELEGCUR) == 0) 3189 override = NFSACCCHK_NOOVERRIDE; 3190 else 3191 override = NFSACCCHK_ALLOWOWNER; 3192 if (!nd->nd_repstat && (stp->ls_flags & NFSLCK_WRITEACCESS)) 3193 nd->nd_repstat = nfsvno_accchk(vp, VWRITE, nd->nd_cred, 3194 exp, p, override, NFSACCCHK_VPISLOCKED, NULL); 3195 if (!nd->nd_repstat && (stp->ls_flags & NFSLCK_READACCESS)) { 3196 nd->nd_repstat = nfsvno_accchk(vp, VREAD, nd->nd_cred, 3197 exp, p, override, NFSACCCHK_VPISLOCKED, NULL); 3198 if (nd->nd_repstat) 3199 nd->nd_repstat = nfsvno_accchk(vp, VEXEC, 3200 nd->nd_cred, exp, p, override, 3201 NFSACCCHK_VPISLOCKED, NULL); 3202 } 3203 3204 if (!nd->nd_repstat) { 3205 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 3206 if (!nd->nd_repstat) { 3207 tverf[0] = nva.na_atime.tv_sec; 3208 tverf[1] = nva.na_atime.tv_nsec; 3209 } 3210 } 3211 if (!nd->nd_repstat && exclusive_flag && (cverf[0] != tverf[0] || 3212 cverf[1] != tverf[1])) 3213 nd->nd_repstat = EEXIST; 3214 /* 3215 * Do the open locking/delegation stuff. 3216 */ 3217 if (!nd->nd_repstat) 3218 nd->nd_repstat = nfsrv_openctrl(nd, vp, &stp, clientid, &stateid, 3219 &delegstateid, &rflags, exp, p, nva.na_filerev); 3220 3221 /* 3222 * vp must be unlocked before the call to nfsvno_getattr(dirp,...) 3223 * below, to avoid a deadlock with the lookup in nfsvno_namei() above. 3224 * (ie: Leave the NFSVOPUNLOCK() about here.) 3225 */ 3226 if (vp) 3227 NFSVOPUNLOCK(vp); 3228 if (stp) 3229 free(stp, M_NFSDSTATE); 3230 if (!nd->nd_repstat && dirp) 3231 nd->nd_repstat = nfsvno_getattr(dirp, &diraft, nd, p, 0, NULL); 3232 if (!nd->nd_repstat) { 3233 /* For NFSv4.1, set the Current StateID. */ 3234 if ((nd->nd_flag & ND_NFSV41) != 0) { 3235 nd->nd_curstateid = stateid; 3236 nd->nd_flag |= ND_CURSTATEID; 3237 } 3238 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); 3239 *tl++ = txdr_unsigned(stateid.seqid); 3240 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER); 3241 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 3242 if (claim == NFSV4OPEN_CLAIMPREVIOUS) { 3243 *tl++ = newnfs_true; 3244 *tl++ = 0; 3245 *tl++ = 0; 3246 *tl++ = 0; 3247 *tl++ = 0; 3248 } else { 3249 *tl++ = newnfs_false; /* Since dirp is not locked */ 3250 txdr_hyper(dirfor.na_filerev, tl); 3251 tl += 2; 3252 txdr_hyper(diraft.na_filerev, tl); 3253 tl += 2; 3254 } 3255 *tl = txdr_unsigned(rflags & NFSV4OPEN_RFLAGS); 3256 (void) nfsrv_putattrbit(nd, &attrbits); 3257 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3258 if (rflags & NFSV4OPEN_READDELEGATE) 3259 *tl = txdr_unsigned(NFSV4OPEN_DELEGATEREAD); 3260 else if (rflags & NFSV4OPEN_WRITEDELEGATE) 3261 *tl = txdr_unsigned(NFSV4OPEN_DELEGATEWRITE); 3262 else if (retext != 0) { 3263 *tl = txdr_unsigned(NFSV4OPEN_DELEGATENONEEXT); 3264 if ((rflags & NFSV4OPEN_WDNOTWANTED) != 0) { 3265 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3266 *tl = txdr_unsigned(NFSV4OPEN_NOTWANTED); 3267 } else if ((rflags & NFSV4OPEN_WDSUPPFTYPE) != 0) { 3268 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3269 *tl = txdr_unsigned(NFSV4OPEN_NOTSUPPFTYPE); 3270 } else if ((rflags & NFSV4OPEN_WDCONTENTION) != 0) { 3271 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3272 *tl++ = txdr_unsigned(NFSV4OPEN_CONTENTION); 3273 *tl = newnfs_false; 3274 } else if ((rflags & NFSV4OPEN_WDRESOURCE) != 0) { 3275 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3276 *tl++ = txdr_unsigned(NFSV4OPEN_RESOURCE); 3277 *tl = newnfs_false; 3278 } else if ((rflags & 3279 NFSV4OPEN_WDNOTSUPPDOWNGRADE) != 0) { 3280 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 3281 *tl = txdr_unsigned(NFSV4OPEN_NOTSUPPDOWNGRADE); 3282 } else if ((rflags & NFSV4OPEN_WDNOTSUPPUPGRADE) != 0) { 3283 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 3284 *tl = txdr_unsigned(NFSV4OPEN_NOTSUPPUPGRADE); 3285 } else { 3286 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3287 *tl = txdr_unsigned(NFSV4OPEN_NOTWANTED); 3288 } 3289 } else 3290 *tl = txdr_unsigned(NFSV4OPEN_DELEGATENONE); 3291 if (rflags & (NFSV4OPEN_READDELEGATE|NFSV4OPEN_WRITEDELEGATE)) { 3292 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID+NFSX_UNSIGNED); 3293 *tl++ = txdr_unsigned(delegstateid.seqid); 3294 NFSBCOPY((caddr_t)delegstateid.other, (caddr_t)tl, 3295 NFSX_STATEIDOTHER); 3296 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 3297 if (rflags & NFSV4OPEN_RECALL) 3298 *tl = newnfs_true; 3299 else 3300 *tl = newnfs_false; 3301 if (rflags & NFSV4OPEN_WRITEDELEGATE) { 3302 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3303 *tl++ = txdr_unsigned(NFSV4OPEN_LIMITSIZE); 3304 txdr_hyper(nva.na_size, tl); 3305 } 3306 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3307 *tl++ = txdr_unsigned(NFSV4ACE_ALLOWEDTYPE); 3308 *tl++ = txdr_unsigned(0x0); 3309 acemask = NFSV4ACE_ALLFILESMASK; 3310 if (nva.na_mode & S_IRUSR) 3311 acemask |= NFSV4ACE_READMASK; 3312 if (nva.na_mode & S_IWUSR) 3313 acemask |= NFSV4ACE_WRITEMASK; 3314 if (nva.na_mode & S_IXUSR) 3315 acemask |= NFSV4ACE_EXECUTEMASK; 3316 *tl = txdr_unsigned(acemask); 3317 (void) nfsm_strtom(nd, "OWNER@", 6); 3318 } 3319 *vpp = vp; 3320 } else if (vp) { 3321 vrele(vp); 3322 } 3323 if (dirp) 3324 vrele(dirp); 3325 #ifdef NFS4_ACL_EXTATTR_NAME 3326 acl_free(aclp); 3327 #endif 3328 NFSEXITCODE2(0, nd); 3329 return (0); 3330 nfsmout: 3331 vrele(dp); 3332 #ifdef NFS4_ACL_EXTATTR_NAME 3333 acl_free(aclp); 3334 #endif 3335 if (stp) 3336 free(stp, M_NFSDSTATE); 3337 NFSEXITCODE2(error, nd); 3338 return (error); 3339 } 3340 3341 /* 3342 * nfsv4 close service 3343 */ 3344 int 3345 nfsrvd_close(struct nfsrv_descript *nd, __unused int isdgram, 3346 vnode_t vp, __unused struct nfsexstuff *exp) 3347 { 3348 u_int32_t *tl; 3349 struct nfsstate st, *stp = &st; 3350 int error = 0, writeacc; 3351 nfsv4stateid_t stateid; 3352 nfsquad_t clientid; 3353 struct nfsvattr na; 3354 struct thread *p = curthread; 3355 3356 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); 3357 stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++); 3358 stp->ls_ownerlen = 0; 3359 stp->ls_op = nd->nd_rp; 3360 stp->ls_uid = nd->nd_cred->cr_uid; 3361 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 3362 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other, 3363 NFSX_STATEIDOTHER); 3364 3365 /* 3366 * For the special stateid of other all 0s and seqid == 1, set the 3367 * stateid to the current stateid, if it is set. 3368 */ 3369 if ((nd->nd_flag & ND_NFSV41) != 0 && stp->ls_stateid.seqid == 1 && 3370 stp->ls_stateid.other[0] == 0 && stp->ls_stateid.other[1] == 0 && 3371 stp->ls_stateid.other[2] == 0) { 3372 if ((nd->nd_flag & ND_CURSTATEID) != 0) 3373 stp->ls_stateid = nd->nd_curstateid; 3374 else { 3375 nd->nd_repstat = NFSERR_BADSTATEID; 3376 goto nfsmout; 3377 } 3378 } 3379 3380 stp->ls_flags = NFSLCK_CLOSE; 3381 clientid.lval[0] = stp->ls_stateid.other[0]; 3382 clientid.lval[1] = stp->ls_stateid.other[1]; 3383 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 3384 if ((nd->nd_flag & ND_NFSV41) != 0) 3385 clientid.qval = nd->nd_clientid.qval; 3386 else if (nd->nd_clientid.qval != clientid.qval) 3387 printf("EEK8 multiple clids\n"); 3388 } else { 3389 if ((nd->nd_flag & ND_NFSV41) != 0) 3390 printf("EEK! no clientid from session\n"); 3391 nd->nd_flag |= ND_IMPLIEDCLID; 3392 nd->nd_clientid.qval = clientid.qval; 3393 } 3394 nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, nd, p, 3395 &writeacc); 3396 /* For pNFS, update the attributes. */ 3397 if (writeacc != 0 || nfsrv_pnfsatime != 0) 3398 nfsrv_updatemdsattr(vp, &na, p); 3399 vput(vp); 3400 if (!nd->nd_repstat) { 3401 /* 3402 * If the stateid that has been closed is the current stateid, 3403 * unset it. 3404 */ 3405 if ((nd->nd_flag & ND_CURSTATEID) != 0 && 3406 stateid.other[0] == nd->nd_curstateid.other[0] && 3407 stateid.other[1] == nd->nd_curstateid.other[1] && 3408 stateid.other[2] == nd->nd_curstateid.other[2]) 3409 nd->nd_flag &= ~ND_CURSTATEID; 3410 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 3411 *tl++ = txdr_unsigned(stateid.seqid); 3412 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER); 3413 } 3414 NFSEXITCODE2(0, nd); 3415 return (0); 3416 nfsmout: 3417 vput(vp); 3418 NFSEXITCODE2(error, nd); 3419 return (error); 3420 } 3421 3422 /* 3423 * nfsv4 delegpurge service 3424 */ 3425 int 3426 nfsrvd_delegpurge(struct nfsrv_descript *nd, __unused int isdgram, 3427 __unused vnode_t vp, __unused struct nfsexstuff *exp) 3428 { 3429 u_int32_t *tl; 3430 int error = 0; 3431 nfsquad_t clientid; 3432 struct thread *p = curthread; 3433 3434 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 3435 goto nfsmout; 3436 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3437 clientid.lval[0] = *tl++; 3438 clientid.lval[1] = *tl; 3439 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 3440 if ((nd->nd_flag & ND_NFSV41) != 0) 3441 clientid.qval = nd->nd_clientid.qval; 3442 else if (nd->nd_clientid.qval != clientid.qval) 3443 printf("EEK9 multiple clids\n"); 3444 } else { 3445 if ((nd->nd_flag & ND_NFSV41) != 0) 3446 printf("EEK! no clientid from session\n"); 3447 nd->nd_flag |= ND_IMPLIEDCLID; 3448 nd->nd_clientid.qval = clientid.qval; 3449 } 3450 nd->nd_repstat = nfsrv_delegupdate(nd, clientid, NULL, NULL, 3451 NFSV4OP_DELEGPURGE, nd->nd_cred, p, NULL); 3452 nfsmout: 3453 NFSEXITCODE2(error, nd); 3454 return (error); 3455 } 3456 3457 /* 3458 * nfsv4 delegreturn service 3459 */ 3460 int 3461 nfsrvd_delegreturn(struct nfsrv_descript *nd, __unused int isdgram, 3462 vnode_t vp, __unused struct nfsexstuff *exp) 3463 { 3464 u_int32_t *tl; 3465 int error = 0, writeacc; 3466 nfsv4stateid_t stateid; 3467 nfsquad_t clientid; 3468 struct nfsvattr na; 3469 struct thread *p = curthread; 3470 3471 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); 3472 stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 3473 NFSBCOPY((caddr_t)tl, (caddr_t)stateid.other, NFSX_STATEIDOTHER); 3474 clientid.lval[0] = stateid.other[0]; 3475 clientid.lval[1] = stateid.other[1]; 3476 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 3477 if ((nd->nd_flag & ND_NFSV41) != 0) 3478 clientid.qval = nd->nd_clientid.qval; 3479 else if (nd->nd_clientid.qval != clientid.qval) 3480 printf("EEK10 multiple clids\n"); 3481 } else { 3482 if ((nd->nd_flag & ND_NFSV41) != 0) 3483 printf("EEK! no clientid from session\n"); 3484 nd->nd_flag |= ND_IMPLIEDCLID; 3485 nd->nd_clientid.qval = clientid.qval; 3486 } 3487 nd->nd_repstat = nfsrv_delegupdate(nd, clientid, &stateid, vp, 3488 NFSV4OP_DELEGRETURN, nd->nd_cred, p, &writeacc); 3489 /* For pNFS, update the attributes. */ 3490 if (writeacc != 0 || nfsrv_pnfsatime != 0) 3491 nfsrv_updatemdsattr(vp, &na, p); 3492 nfsmout: 3493 vput(vp); 3494 NFSEXITCODE2(error, nd); 3495 return (error); 3496 } 3497 3498 /* 3499 * nfsv4 get file handle service 3500 */ 3501 int 3502 nfsrvd_getfh(struct nfsrv_descript *nd, __unused int isdgram, 3503 vnode_t vp, __unused struct nfsexstuff *exp) 3504 { 3505 fhandle_t fh; 3506 struct thread *p = curthread; 3507 int siz; 3508 short irflag; 3509 3510 nd->nd_repstat = nfsvno_getfh(vp, &fh, p); 3511 irflag = vn_irflag_read(vp); 3512 vput(vp); 3513 if (nd->nd_repstat == 0) { 3514 siz = 0; 3515 if ((irflag & VIRF_NAMEDDIR) != 0) 3516 siz = NFSX_FHMAX + NFSX_V4NAMEDDIRFH; 3517 else if ((irflag & VIRF_NAMEDATTR) != 0) 3518 siz = NFSX_FHMAX + NFSX_V4NAMEDATTRFH; 3519 (void)nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, siz, 0); 3520 } 3521 NFSEXITCODE2(0, nd); 3522 return (0); 3523 } 3524 3525 /* 3526 * nfsv4 open confirm service 3527 */ 3528 int 3529 nfsrvd_openconfirm(struct nfsrv_descript *nd, __unused int isdgram, 3530 vnode_t vp, __unused struct nfsexstuff *exp) 3531 { 3532 u_int32_t *tl; 3533 struct nfsstate st, *stp = &st; 3534 int error = 0; 3535 nfsv4stateid_t stateid; 3536 nfsquad_t clientid; 3537 struct thread *p = curthread; 3538 3539 if ((nd->nd_flag & ND_NFSV41) != 0) { 3540 nd->nd_repstat = NFSERR_NOTSUPP; 3541 goto nfsmout; 3542 } 3543 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); 3544 stp->ls_ownerlen = 0; 3545 stp->ls_op = nd->nd_rp; 3546 stp->ls_uid = nd->nd_cred->cr_uid; 3547 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 3548 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other, 3549 NFSX_STATEIDOTHER); 3550 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 3551 stp->ls_seq = fxdr_unsigned(u_int32_t, *tl); 3552 stp->ls_flags = NFSLCK_CONFIRM; 3553 clientid.lval[0] = stp->ls_stateid.other[0]; 3554 clientid.lval[1] = stp->ls_stateid.other[1]; 3555 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 3556 if ((nd->nd_flag & ND_NFSV41) != 0) 3557 clientid.qval = nd->nd_clientid.qval; 3558 else if (nd->nd_clientid.qval != clientid.qval) 3559 printf("EEK11 multiple clids\n"); 3560 } else { 3561 if ((nd->nd_flag & ND_NFSV41) != 0) 3562 printf("EEK! no clientid from session\n"); 3563 nd->nd_flag |= ND_IMPLIEDCLID; 3564 nd->nd_clientid.qval = clientid.qval; 3565 } 3566 nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, nd, p, 3567 NULL); 3568 if (!nd->nd_repstat) { 3569 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 3570 *tl++ = txdr_unsigned(stateid.seqid); 3571 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER); 3572 } 3573 nfsmout: 3574 vput(vp); 3575 NFSEXITCODE2(error, nd); 3576 return (error); 3577 } 3578 3579 /* 3580 * nfsv4 open downgrade service 3581 */ 3582 int 3583 nfsrvd_opendowngrade(struct nfsrv_descript *nd, __unused int isdgram, 3584 vnode_t vp, __unused struct nfsexstuff *exp) 3585 { 3586 u_int32_t *tl; 3587 int i; 3588 struct nfsstate st, *stp = &st; 3589 int error = 0; 3590 nfsv4stateid_t stateid; 3591 nfsquad_t clientid; 3592 struct thread *p = curthread; 3593 3594 /* opendowngrade can only work on a file object.*/ 3595 if (vp->v_type != VREG) { 3596 error = NFSERR_INVAL; 3597 goto nfsmout; 3598 } 3599 NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); 3600 stp->ls_ownerlen = 0; 3601 stp->ls_op = nd->nd_rp; 3602 stp->ls_uid = nd->nd_cred->cr_uid; 3603 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 3604 NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other, 3605 NFSX_STATEIDOTHER); 3606 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 3607 3608 /* 3609 * For the special stateid of other all 0s and seqid == 1, set the 3610 * stateid to the current stateid, if it is set. 3611 */ 3612 if ((nd->nd_flag & ND_NFSV41) != 0 && stp->ls_stateid.seqid == 1 && 3613 stp->ls_stateid.other[0] == 0 && stp->ls_stateid.other[1] == 0 && 3614 stp->ls_stateid.other[2] == 0) { 3615 if ((nd->nd_flag & ND_CURSTATEID) != 0) 3616 stp->ls_stateid = nd->nd_curstateid; 3617 else { 3618 nd->nd_repstat = NFSERR_BADSTATEID; 3619 goto nfsmout; 3620 } 3621 } 3622 3623 stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++); 3624 i = fxdr_unsigned(int, *tl++); 3625 if ((nd->nd_flag & ND_NFSV41) != 0) 3626 i &= ~NFSV4OPEN_WANTDELEGMASK; 3627 switch (i) { 3628 case NFSV4OPEN_ACCESSREAD: 3629 stp->ls_flags = (NFSLCK_READACCESS | NFSLCK_DOWNGRADE); 3630 break; 3631 case NFSV4OPEN_ACCESSWRITE: 3632 stp->ls_flags = (NFSLCK_WRITEACCESS | NFSLCK_DOWNGRADE); 3633 break; 3634 case NFSV4OPEN_ACCESSBOTH: 3635 stp->ls_flags = (NFSLCK_READACCESS | NFSLCK_WRITEACCESS | 3636 NFSLCK_DOWNGRADE); 3637 break; 3638 default: 3639 nd->nd_repstat = NFSERR_INVAL; 3640 } 3641 i = fxdr_unsigned(int, *tl); 3642 switch (i) { 3643 case NFSV4OPEN_DENYNONE: 3644 break; 3645 case NFSV4OPEN_DENYREAD: 3646 stp->ls_flags |= NFSLCK_READDENY; 3647 break; 3648 case NFSV4OPEN_DENYWRITE: 3649 stp->ls_flags |= NFSLCK_WRITEDENY; 3650 break; 3651 case NFSV4OPEN_DENYBOTH: 3652 stp->ls_flags |= (NFSLCK_READDENY | NFSLCK_WRITEDENY); 3653 break; 3654 default: 3655 nd->nd_repstat = NFSERR_INVAL; 3656 } 3657 3658 clientid.lval[0] = stp->ls_stateid.other[0]; 3659 clientid.lval[1] = stp->ls_stateid.other[1]; 3660 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 3661 if ((nd->nd_flag & ND_NFSV41) != 0) 3662 clientid.qval = nd->nd_clientid.qval; 3663 else if (nd->nd_clientid.qval != clientid.qval) 3664 printf("EEK12 multiple clids\n"); 3665 } else { 3666 if ((nd->nd_flag & ND_NFSV41) != 0) 3667 printf("EEK! no clientid from session\n"); 3668 nd->nd_flag |= ND_IMPLIEDCLID; 3669 nd->nd_clientid.qval = clientid.qval; 3670 } 3671 if (!nd->nd_repstat) 3672 nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, 3673 nd, p, NULL); 3674 if (!nd->nd_repstat) { 3675 /* For NFSv4.1, set the Current StateID. */ 3676 if ((nd->nd_flag & ND_NFSV41) != 0) { 3677 nd->nd_curstateid = stateid; 3678 nd->nd_flag |= ND_CURSTATEID; 3679 } 3680 NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); 3681 *tl++ = txdr_unsigned(stateid.seqid); 3682 NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER); 3683 } 3684 nfsmout: 3685 vput(vp); 3686 NFSEXITCODE2(error, nd); 3687 return (error); 3688 } 3689 3690 /* 3691 * nfsv4 renew lease service 3692 */ 3693 int 3694 nfsrvd_renew(struct nfsrv_descript *nd, __unused int isdgram, 3695 __unused vnode_t vp, __unused struct nfsexstuff *exp) 3696 { 3697 u_int32_t *tl; 3698 int error = 0; 3699 nfsquad_t clientid; 3700 struct thread *p = curthread; 3701 3702 if ((nd->nd_flag & ND_NFSV41) != 0) { 3703 nd->nd_repstat = NFSERR_NOTSUPP; 3704 goto nfsmout; 3705 } 3706 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 3707 goto nfsmout; 3708 NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); 3709 clientid.lval[0] = *tl++; 3710 clientid.lval[1] = *tl; 3711 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 3712 if ((nd->nd_flag & ND_NFSV41) != 0) 3713 clientid.qval = nd->nd_clientid.qval; 3714 else if (nd->nd_clientid.qval != clientid.qval) 3715 printf("EEK13 multiple clids\n"); 3716 } else { 3717 if ((nd->nd_flag & ND_NFSV41) != 0) 3718 printf("EEK! no clientid from session\n"); 3719 nd->nd_flag |= ND_IMPLIEDCLID; 3720 nd->nd_clientid.qval = clientid.qval; 3721 } 3722 nd->nd_repstat = nfsrv_getclient(clientid, (CLOPS_RENEWOP|CLOPS_RENEW), 3723 NULL, NULL, (nfsquad_t)((u_quad_t)0), 0, nd, p); 3724 nfsmout: 3725 NFSEXITCODE2(error, nd); 3726 return (error); 3727 } 3728 3729 /* 3730 * nfsv4 security info service 3731 */ 3732 int 3733 nfsrvd_secinfo(struct nfsrv_descript *nd, int isdgram, 3734 vnode_t dp, struct nfsexstuff *exp) 3735 { 3736 u_int32_t *tl; 3737 int len; 3738 struct nameidata named; 3739 vnode_t dirp = NULL, vp; 3740 struct nfsrvfh fh; 3741 struct nfsexstuff retnes; 3742 u_int32_t *sizp; 3743 int error = 0, i; 3744 uint64_t savflag; 3745 char *bufp; 3746 u_long *hashp; 3747 struct thread *p = curthread; 3748 3749 /* 3750 * All this just to get the export flags for the name. 3751 */ 3752 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP, 3753 LOCKLEAF); 3754 nfsvno_setpathbuf(&named, &bufp, &hashp); 3755 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 3756 if (error) { 3757 vput(dp); 3758 nfsvno_relpathbuf(&named); 3759 goto out; 3760 } 3761 if (!nd->nd_repstat) { 3762 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, &dirp); 3763 } else { 3764 vput(dp); 3765 nfsvno_relpathbuf(&named); 3766 } 3767 if (dirp) 3768 vrele(dirp); 3769 if (nd->nd_repstat) 3770 goto out; 3771 nfsvno_relpathbuf(&named); 3772 fh.nfsrvfh_len = NFSX_MYFH; 3773 vp = named.ni_vp; 3774 nd->nd_repstat = nfsvno_getfh(vp, (fhandle_t *)fh.nfsrvfh_data, p); 3775 vput(vp); 3776 savflag = nd->nd_flag; 3777 if (!nd->nd_repstat) { 3778 /* 3779 * Pretend the next op is Secinfo, so that no wrongsec 3780 * test will be done. 3781 */ 3782 nfsd_fhtovp(nd, &fh, LK_SHARED, &vp, &retnes, NULL, 0, 3783 NFSV4OP_SECINFO); 3784 if (vp) 3785 vput(vp); 3786 } 3787 nd->nd_flag = savflag; 3788 if (nd->nd_repstat) 3789 goto out; 3790 3791 /* 3792 * Finally have the export flags for name, so we can create 3793 * the security info. 3794 */ 3795 len = 0; 3796 NFSM_BUILD(sizp, u_int32_t *, NFSX_UNSIGNED); 3797 3798 /* If nes_numsecflavor == 0, all are allowed. */ 3799 if (retnes.nes_numsecflavor == 0) { 3800 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3801 *tl++ = txdr_unsigned(RPCAUTH_UNIX); 3802 *tl = txdr_unsigned(RPCAUTH_GSS); 3803 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3804 nfsgss_mechlist[KERBV_MECH].len); 3805 NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED); 3806 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3807 *tl++ = txdr_unsigned(RPCAUTHGSS_SVCNONE); 3808 *tl = txdr_unsigned(RPCAUTH_GSS); 3809 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3810 nfsgss_mechlist[KERBV_MECH].len); 3811 NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED); 3812 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3813 *tl++ = txdr_unsigned(RPCAUTHGSS_SVCINTEGRITY); 3814 *tl = txdr_unsigned(RPCAUTH_GSS); 3815 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3816 nfsgss_mechlist[KERBV_MECH].len); 3817 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3818 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3819 *tl = txdr_unsigned(RPCAUTHGSS_SVCPRIVACY); 3820 len = 4; 3821 } 3822 for (i = 0; i < retnes.nes_numsecflavor; i++) { 3823 if (retnes.nes_secflavors[i] == AUTH_SYS) { 3824 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3825 *tl = txdr_unsigned(RPCAUTH_UNIX); 3826 len++; 3827 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5) { 3828 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3829 *tl++ = txdr_unsigned(RPCAUTH_GSS); 3830 (void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3831 nfsgss_mechlist[KERBV_MECH].len); 3832 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3833 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3834 *tl = txdr_unsigned(RPCAUTHGSS_SVCNONE); 3835 len++; 3836 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5I) { 3837 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3838 *tl++ = txdr_unsigned(RPCAUTH_GSS); 3839 (void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3840 nfsgss_mechlist[KERBV_MECH].len); 3841 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3842 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3843 *tl = txdr_unsigned(RPCAUTHGSS_SVCINTEGRITY); 3844 len++; 3845 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5P) { 3846 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 3847 *tl++ = txdr_unsigned(RPCAUTH_GSS); 3848 (void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3849 nfsgss_mechlist[KERBV_MECH].len); 3850 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 3851 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3852 *tl = txdr_unsigned(RPCAUTHGSS_SVCPRIVACY); 3853 len++; 3854 } 3855 } 3856 *sizp = txdr_unsigned(len); 3857 3858 out: 3859 NFSEXITCODE2(error, nd); 3860 return (error); 3861 } 3862 3863 /* 3864 * nfsv4 security info no name service 3865 */ 3866 int 3867 nfsrvd_secinfononame(struct nfsrv_descript *nd, int isdgram, 3868 vnode_t dp, struct nfsexstuff *exp) 3869 { 3870 uint32_t *tl, *sizp; 3871 struct nameidata named; 3872 vnode_t dirp = NULL, vp; 3873 struct nfsrvfh fh; 3874 struct nfsexstuff retnes; 3875 int error = 0, fhstyle, i, len; 3876 uint64_t savflag; 3877 char *bufp; 3878 u_long *hashp; 3879 struct thread *p = curthread; 3880 3881 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 3882 fhstyle = fxdr_unsigned(int, *tl); 3883 switch (fhstyle) { 3884 case NFSSECINFONONAME_PARENT: 3885 if (dp->v_type != VDIR) { 3886 vput(dp); 3887 nd->nd_repstat = NFSERR_NOTDIR; 3888 goto nfsmout; 3889 } 3890 NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP, 3891 LOCKLEAF); 3892 nfsvno_setpathbuf(&named, &bufp, &hashp); 3893 error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen); 3894 if (error != 0) { 3895 vput(dp); 3896 nfsvno_relpathbuf(&named); 3897 goto nfsmout; 3898 } 3899 if (nd->nd_repstat == 0) 3900 nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, &dirp); 3901 else 3902 vput(dp); 3903 if (dirp != NULL) 3904 vrele(dirp); 3905 nfsvno_relpathbuf(&named); 3906 vp = named.ni_vp; 3907 break; 3908 case NFSSECINFONONAME_CURFH: 3909 vp = dp; 3910 break; 3911 default: 3912 nd->nd_repstat = NFSERR_INVAL; 3913 vput(dp); 3914 } 3915 if (nd->nd_repstat != 0) 3916 goto nfsmout; 3917 fh.nfsrvfh_len = NFSX_MYFH; 3918 nd->nd_repstat = nfsvno_getfh(vp, (fhandle_t *)fh.nfsrvfh_data, p); 3919 vput(vp); 3920 savflag = nd->nd_flag; 3921 if (nd->nd_repstat == 0) { 3922 /* 3923 * Pretend the next op is Secinfo, so that no wrongsec 3924 * test will be done. 3925 */ 3926 nfsd_fhtovp(nd, &fh, LK_SHARED, &vp, &retnes, NULL, 0, 3927 NFSV4OP_SECINFO); 3928 if (vp != NULL) 3929 vput(vp); 3930 } 3931 nd->nd_flag = savflag; 3932 if (nd->nd_repstat != 0) 3933 goto nfsmout; 3934 3935 /* 3936 * Finally have the export flags for fh/parent, so we can create 3937 * the security info. 3938 */ 3939 len = 0; 3940 NFSM_BUILD(sizp, uint32_t *, NFSX_UNSIGNED); 3941 3942 /* If nes_numsecflavor == 0, all are allowed. */ 3943 if (retnes.nes_numsecflavor == 0) { 3944 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3945 *tl++ = txdr_unsigned(RPCAUTH_UNIX); 3946 *tl = txdr_unsigned(RPCAUTH_GSS); 3947 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3948 nfsgss_mechlist[KERBV_MECH].len); 3949 NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED); 3950 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3951 *tl++ = txdr_unsigned(RPCAUTHGSS_SVCNONE); 3952 *tl = txdr_unsigned(RPCAUTH_GSS); 3953 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3954 nfsgss_mechlist[KERBV_MECH].len); 3955 NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED); 3956 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3957 *tl++ = txdr_unsigned(RPCAUTHGSS_SVCINTEGRITY); 3958 *tl = txdr_unsigned(RPCAUTH_GSS); 3959 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3960 nfsgss_mechlist[KERBV_MECH].len); 3961 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3962 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3963 *tl = txdr_unsigned(RPCAUTHGSS_SVCPRIVACY); 3964 len = 4; 3965 } 3966 for (i = 0; i < retnes.nes_numsecflavor; i++) { 3967 if (retnes.nes_secflavors[i] == AUTH_SYS) { 3968 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 3969 *tl = txdr_unsigned(RPCAUTH_UNIX); 3970 len++; 3971 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5) { 3972 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 3973 *tl = txdr_unsigned(RPCAUTH_GSS); 3974 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3975 nfsgss_mechlist[KERBV_MECH].len); 3976 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3977 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3978 *tl = txdr_unsigned(RPCAUTHGSS_SVCNONE); 3979 len++; 3980 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5I) { 3981 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 3982 *tl = txdr_unsigned(RPCAUTH_GSS); 3983 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3984 nfsgss_mechlist[KERBV_MECH].len); 3985 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3986 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3987 *tl = txdr_unsigned(RPCAUTHGSS_SVCINTEGRITY); 3988 len++; 3989 } else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5P) { 3990 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 3991 *tl = txdr_unsigned(RPCAUTH_GSS); 3992 nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str, 3993 nfsgss_mechlist[KERBV_MECH].len); 3994 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); 3995 *tl++ = txdr_unsigned(GSS_KERBV_QOP); 3996 *tl = txdr_unsigned(RPCAUTHGSS_SVCPRIVACY); 3997 len++; 3998 } 3999 } 4000 *sizp = txdr_unsigned(len); 4001 4002 nfsmout: 4003 NFSEXITCODE2(error, nd); 4004 return (error); 4005 } 4006 4007 /* 4008 * nfsv4 set client id service 4009 */ 4010 int 4011 nfsrvd_setclientid(struct nfsrv_descript *nd, __unused int isdgram, 4012 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4013 { 4014 u_int32_t *tl; 4015 int i; 4016 int error = 0, idlen; 4017 struct nfsclient *clp = NULL; 4018 #ifdef INET 4019 struct sockaddr_in *rin; 4020 #endif 4021 #ifdef INET6 4022 struct sockaddr_in6 *rin6; 4023 #endif 4024 #if defined(INET) || defined(INET6) 4025 u_char *ucp, *ucp2; 4026 #endif 4027 u_char *verf, *addrbuf; 4028 nfsquad_t clientid, confirm; 4029 struct thread *p = curthread; 4030 4031 if ((nd->nd_flag & ND_NFSV41) != 0) { 4032 nd->nd_repstat = NFSERR_NOTSUPP; 4033 goto nfsmout; 4034 } 4035 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4036 goto out; 4037 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF + NFSX_UNSIGNED); 4038 verf = (u_char *)tl; 4039 tl += (NFSX_VERF / NFSX_UNSIGNED); 4040 i = fxdr_unsigned(int, *tl); 4041 if (i > NFSV4_OPAQUELIMIT || i <= 0) { 4042 nd->nd_repstat = NFSERR_BADXDR; 4043 goto nfsmout; 4044 } 4045 idlen = i; 4046 if (nd->nd_flag & ND_GSS) 4047 i += nd->nd_princlen; 4048 clp = malloc(sizeof(struct nfsclient) + i, M_NFSDCLIENT, M_WAITOK | 4049 M_ZERO); 4050 clp->lc_stateid = malloc(sizeof(struct nfsstatehead) * 4051 nfsrv_statehashsize, M_NFSDCLIENT, M_WAITOK); 4052 NFSINITSOCKMUTEX(&clp->lc_req.nr_mtx); 4053 /* Allocated large enough for an AF_INET or AF_INET6 socket. */ 4054 clp->lc_req.nr_nam = malloc(sizeof(struct sockaddr_in6), M_SONAME, 4055 M_WAITOK | M_ZERO); 4056 clp->lc_req.nr_cred = NULL; 4057 NFSBCOPY(verf, clp->lc_verf, NFSX_VERF); 4058 clp->lc_idlen = idlen; 4059 error = nfsrv_mtostr(nd, clp->lc_id, idlen); 4060 if (error) 4061 goto nfsmout; 4062 if (nd->nd_flag & ND_GSS) { 4063 clp->lc_flags = LCL_GSS; 4064 if (nd->nd_flag & ND_GSSINTEGRITY) 4065 clp->lc_flags |= LCL_GSSINTEGRITY; 4066 else if (nd->nd_flag & ND_GSSPRIVACY) 4067 clp->lc_flags |= LCL_GSSPRIVACY; 4068 } else { 4069 clp->lc_flags = 0; 4070 } 4071 if ((nd->nd_flag & ND_GSS) && nd->nd_princlen > 0) { 4072 clp->lc_flags |= LCL_NAME; 4073 clp->lc_namelen = nd->nd_princlen; 4074 clp->lc_name = &clp->lc_id[idlen]; 4075 NFSBCOPY(nd->nd_principal, clp->lc_name, clp->lc_namelen); 4076 } else { 4077 clp->lc_uid = nd->nd_cred->cr_uid; 4078 clp->lc_gid = nd->nd_cred->cr_gid; 4079 } 4080 4081 /* If the client is using TLS, do so for the callback connection. */ 4082 if (nd->nd_flag & ND_TLS) 4083 clp->lc_flags |= LCL_TLSCB; 4084 4085 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 4086 clp->lc_program = fxdr_unsigned(u_int32_t, *tl); 4087 error = nfsrv_getclientipaddr(nd, clp); 4088 if (error) 4089 goto nfsmout; 4090 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 4091 clp->lc_callback = fxdr_unsigned(u_int32_t, *tl); 4092 4093 /* 4094 * nfsrv_setclient() does the actual work of adding it to the 4095 * client list. If there is no error, the structure has been 4096 * linked into the client list and clp should no longer be used 4097 * here. When an error is returned, it has not been linked in, 4098 * so it should be free'd. 4099 */ 4100 nd->nd_repstat = nfsrv_setclient(nd, &clp, &clientid, &confirm, p); 4101 if (nd->nd_repstat == NFSERR_CLIDINUSE) { 4102 /* 4103 * 8 is the maximum length of the port# string. 4104 */ 4105 addrbuf = malloc(INET6_ADDRSTRLEN + 8, M_TEMP, M_WAITOK); 4106 switch (clp->lc_req.nr_nam->sa_family) { 4107 #ifdef INET 4108 case AF_INET: 4109 if (clp->lc_flags & LCL_TCPCALLBACK) 4110 (void) nfsm_strtom(nd, "tcp", 3); 4111 else 4112 (void) nfsm_strtom(nd, "udp", 3); 4113 rin = (struct sockaddr_in *)clp->lc_req.nr_nam; 4114 ucp = (u_char *)&rin->sin_addr.s_addr; 4115 ucp2 = (u_char *)&rin->sin_port; 4116 sprintf(addrbuf, "%d.%d.%d.%d.%d.%d", ucp[0] & 0xff, 4117 ucp[1] & 0xff, ucp[2] & 0xff, ucp[3] & 0xff, 4118 ucp2[0] & 0xff, ucp2[1] & 0xff); 4119 break; 4120 #endif 4121 #ifdef INET6 4122 case AF_INET6: 4123 if (clp->lc_flags & LCL_TCPCALLBACK) 4124 (void) nfsm_strtom(nd, "tcp6", 4); 4125 else 4126 (void) nfsm_strtom(nd, "udp6", 4); 4127 rin6 = (struct sockaddr_in6 *)clp->lc_req.nr_nam; 4128 ucp = inet_ntop(AF_INET6, &rin6->sin6_addr, addrbuf, 4129 INET6_ADDRSTRLEN); 4130 if (ucp != NULL) 4131 i = strlen(ucp); 4132 else 4133 i = 0; 4134 ucp2 = (u_char *)&rin6->sin6_port; 4135 sprintf(&addrbuf[i], ".%d.%d", ucp2[0] & 0xff, 4136 ucp2[1] & 0xff); 4137 break; 4138 #endif 4139 } 4140 (void) nfsm_strtom(nd, addrbuf, strlen(addrbuf)); 4141 free(addrbuf, M_TEMP); 4142 } 4143 if (clp) { 4144 free(clp->lc_req.nr_nam, M_SONAME); 4145 NFSFREEMUTEX(&clp->lc_req.nr_mtx); 4146 free(clp->lc_stateid, M_NFSDCLIENT); 4147 free(clp, M_NFSDCLIENT); 4148 } 4149 if (!nd->nd_repstat) { 4150 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_HYPER); 4151 *tl++ = clientid.lval[0]; 4152 *tl++ = clientid.lval[1]; 4153 *tl++ = confirm.lval[0]; 4154 *tl = confirm.lval[1]; 4155 } 4156 4157 out: 4158 NFSEXITCODE2(0, nd); 4159 return (0); 4160 nfsmout: 4161 if (clp) { 4162 free(clp->lc_req.nr_nam, M_SONAME); 4163 NFSFREEMUTEX(&clp->lc_req.nr_mtx); 4164 free(clp->lc_stateid, M_NFSDCLIENT); 4165 free(clp, M_NFSDCLIENT); 4166 } 4167 NFSEXITCODE2(error, nd); 4168 return (error); 4169 } 4170 4171 /* 4172 * nfsv4 set client id confirm service 4173 */ 4174 int 4175 nfsrvd_setclientidcfrm(struct nfsrv_descript *nd, 4176 __unused int isdgram, __unused vnode_t vp, 4177 __unused struct nfsexstuff *exp) 4178 { 4179 u_int32_t *tl; 4180 int error = 0; 4181 nfsquad_t clientid, confirm; 4182 struct thread *p = curthread; 4183 4184 if ((nd->nd_flag & ND_NFSV41) != 0) { 4185 nd->nd_repstat = NFSERR_NOTSUPP; 4186 goto nfsmout; 4187 } 4188 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4189 goto nfsmout; 4190 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_HYPER); 4191 clientid.lval[0] = *tl++; 4192 clientid.lval[1] = *tl++; 4193 confirm.lval[0] = *tl++; 4194 confirm.lval[1] = *tl; 4195 4196 /* 4197 * nfsrv_getclient() searches the client list for a match and 4198 * returns the appropriate NFSERR status. 4199 */ 4200 nd->nd_repstat = nfsrv_getclient(clientid, (CLOPS_CONFIRM|CLOPS_RENEW), 4201 NULL, NULL, confirm, 0, nd, p); 4202 nfsmout: 4203 NFSEXITCODE2(error, nd); 4204 return (error); 4205 } 4206 4207 /* 4208 * nfsv4 verify service 4209 */ 4210 int 4211 nfsrvd_verify(struct nfsrv_descript *nd, int isdgram, 4212 vnode_t vp, __unused struct nfsexstuff *exp) 4213 { 4214 int error = 0, ret, fhsize = NFSX_MYFH; 4215 struct nfsvattr nva; 4216 struct statfs *sf; 4217 struct nfsfsinfo fs; 4218 fhandle_t fh; 4219 struct thread *p = curthread; 4220 4221 sf = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 4222 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, NULL); 4223 if (!nd->nd_repstat) 4224 nd->nd_repstat = nfsvno_statfs(vp, sf); 4225 if (!nd->nd_repstat) 4226 nd->nd_repstat = nfsvno_getfh(vp, &fh, p); 4227 if (!nd->nd_repstat) { 4228 nfsvno_getfs(&fs, isdgram); 4229 error = nfsv4_loadattr(nd, vp, &nva, NULL, &fh, fhsize, NULL, 4230 sf, NULL, &fs, NULL, 1, &ret, NULL, NULL, NULL, p, 4231 nd->nd_cred); 4232 if (!error) { 4233 if (nd->nd_procnum == NFSV4OP_NVERIFY) { 4234 if (ret == 0) 4235 nd->nd_repstat = NFSERR_SAME; 4236 else if (ret != NFSERR_NOTSAME) 4237 nd->nd_repstat = ret; 4238 } else if (ret) 4239 nd->nd_repstat = ret; 4240 } 4241 } 4242 vput(vp); 4243 free(sf, M_STATFS); 4244 NFSEXITCODE2(error, nd); 4245 return (error); 4246 } 4247 4248 /* 4249 * nfs openattr rpc 4250 */ 4251 int 4252 nfsrvd_openattr(struct nfsrv_descript *nd, __unused int isdgram, 4253 struct vnode *dp, struct vnode **vpp, __unused fhandle_t *fhp, 4254 __unused struct nfsexstuff *exp) 4255 { 4256 uint32_t *tl; 4257 struct componentname cn; 4258 int error = 0; 4259 4260 NFSNAMEICNDSET(&cn, nd->nd_cred, LOOKUP, OPENNAMED | ISLASTCN | 4261 NOFOLLOW); 4262 cn.cn_nameptr = "."; 4263 cn.cn_namelen = 1; 4264 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 4265 if (*tl == newnfs_true) 4266 cn.cn_flags |= CREATENAMED; 4267 4268 nd->nd_repstat = vn_lock(dp, LK_SHARED); 4269 if (nd->nd_repstat != 0) 4270 goto nfsmout; 4271 4272 if ((dp->v_mount->mnt_flag & MNT_NAMEDATTR) == 0) 4273 nd->nd_repstat = NFSERR_NOTSUPP; 4274 if (nd->nd_repstat == 0 && (vn_irflag_read(dp) & (VIRF_NAMEDDIR | 4275 VIRF_NAMEDATTR)) != 0) 4276 nd->nd_repstat = NFSERR_WRONGTYPE; 4277 if (nd->nd_repstat == 0) { 4278 nd->nd_repstat = VOP_LOOKUP(dp, vpp, &cn); 4279 if (nd->nd_repstat == ENOATTR) 4280 nd->nd_repstat = NFSERR_NOENT; 4281 } 4282 4283 vput(dp); 4284 NFSEXITCODE2(0, nd); 4285 return (0); 4286 nfsmout: 4287 vrele(dp); 4288 NFSEXITCODE2(error, nd); 4289 return (error); 4290 } 4291 4292 /* 4293 * nfsv4 release lock owner service 4294 */ 4295 int 4296 nfsrvd_releaselckown(struct nfsrv_descript *nd, __unused int isdgram, 4297 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4298 { 4299 u_int32_t *tl; 4300 struct nfsstate *stp = NULL; 4301 int error = 0, len; 4302 nfsquad_t clientid; 4303 struct thread *p = curthread; 4304 4305 if ((nd->nd_flag & ND_NFSV41) != 0) { 4306 nd->nd_repstat = NFSERR_NOTSUPP; 4307 goto nfsmout; 4308 } 4309 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4310 goto nfsmout; 4311 NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 4312 len = fxdr_unsigned(int, *(tl + 2)); 4313 if (len <= 0 || len > NFSV4_OPAQUELIMIT) { 4314 nd->nd_repstat = NFSERR_BADXDR; 4315 goto nfsmout; 4316 } 4317 stp = malloc(sizeof (struct nfsstate) + len, 4318 M_NFSDSTATE, M_WAITOK); 4319 stp->ls_ownerlen = len; 4320 stp->ls_op = NULL; 4321 stp->ls_flags = NFSLCK_RELEASE; 4322 stp->ls_uid = nd->nd_cred->cr_uid; 4323 clientid.lval[0] = *tl++; 4324 clientid.lval[1] = *tl; 4325 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 4326 if ((nd->nd_flag & ND_NFSV41) != 0) 4327 clientid.qval = nd->nd_clientid.qval; 4328 else if (nd->nd_clientid.qval != clientid.qval) 4329 printf("EEK14 multiple clids\n"); 4330 } else { 4331 if ((nd->nd_flag & ND_NFSV41) != 0) 4332 printf("EEK! no clientid from session\n"); 4333 nd->nd_flag |= ND_IMPLIEDCLID; 4334 nd->nd_clientid.qval = clientid.qval; 4335 } 4336 error = nfsrv_mtostr(nd, stp->ls_owner, len); 4337 if (error) 4338 goto nfsmout; 4339 nd->nd_repstat = nfsrv_releaselckown(stp, clientid, p); 4340 free(stp, M_NFSDSTATE); 4341 4342 NFSEXITCODE2(0, nd); 4343 return (0); 4344 nfsmout: 4345 if (stp) 4346 free(stp, M_NFSDSTATE); 4347 NFSEXITCODE2(error, nd); 4348 return (error); 4349 } 4350 4351 /* 4352 * nfsv4 exchange_id service 4353 */ 4354 int 4355 nfsrvd_exchangeid(struct nfsrv_descript *nd, __unused int isdgram, 4356 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4357 { 4358 uint32_t *tl; 4359 int error = 0, i, idlen; 4360 struct nfsclient *clp = NULL; 4361 nfsquad_t clientid, confirm; 4362 uint8_t *verf; 4363 uint32_t sp4type, v41flags; 4364 struct timespec verstime; 4365 nfsopbit_t mustops, allowops; 4366 #ifdef INET 4367 struct sockaddr_in *sin, *rin; 4368 #endif 4369 #ifdef INET6 4370 struct sockaddr_in6 *sin6, *rin6; 4371 #endif 4372 struct thread *p = curthread; 4373 char *s; 4374 4375 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4376 goto nfsmout; 4377 NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF + NFSX_UNSIGNED); 4378 verf = (uint8_t *)tl; 4379 tl += (NFSX_VERF / NFSX_UNSIGNED); 4380 i = fxdr_unsigned(int, *tl); 4381 if (i > NFSV4_OPAQUELIMIT || i <= 0) { 4382 nd->nd_repstat = NFSERR_BADXDR; 4383 goto nfsmout; 4384 } 4385 idlen = i; 4386 if (nd->nd_flag & ND_GSS) 4387 i += nd->nd_princlen; 4388 clp = malloc(sizeof(struct nfsclient) + i, M_NFSDCLIENT, M_WAITOK | 4389 M_ZERO); 4390 clp->lc_stateid = malloc(sizeof(struct nfsstatehead) * 4391 nfsrv_statehashsize, M_NFSDCLIENT, M_WAITOK); 4392 NFSINITSOCKMUTEX(&clp->lc_req.nr_mtx); 4393 /* Allocated large enough for an AF_INET or AF_INET6 socket. */ 4394 clp->lc_req.nr_nam = malloc(sizeof(struct sockaddr_in6), M_SONAME, 4395 M_WAITOK | M_ZERO); 4396 switch (nd->nd_nam->sa_family) { 4397 #ifdef INET 4398 case AF_INET: 4399 rin = (struct sockaddr_in *)clp->lc_req.nr_nam; 4400 sin = (struct sockaddr_in *)nd->nd_nam; 4401 rin->sin_family = AF_INET; 4402 rin->sin_len = sizeof(struct sockaddr_in); 4403 rin->sin_port = 0; 4404 rin->sin_addr.s_addr = sin->sin_addr.s_addr; 4405 break; 4406 #endif 4407 #ifdef INET6 4408 case AF_INET6: 4409 rin6 = (struct sockaddr_in6 *)clp->lc_req.nr_nam; 4410 sin6 = (struct sockaddr_in6 *)nd->nd_nam; 4411 rin6->sin6_family = AF_INET6; 4412 rin6->sin6_len = sizeof(struct sockaddr_in6); 4413 rin6->sin6_port = 0; 4414 rin6->sin6_addr = sin6->sin6_addr; 4415 break; 4416 #endif 4417 } 4418 clp->lc_req.nr_cred = NULL; 4419 NFSBCOPY(verf, clp->lc_verf, NFSX_VERF); 4420 clp->lc_idlen = idlen; 4421 error = nfsrv_mtostr(nd, clp->lc_id, idlen); 4422 if (error != 0) 4423 goto nfsmout; 4424 if ((nd->nd_flag & ND_GSS) != 0) { 4425 clp->lc_flags = LCL_GSS | LCL_NFSV41; 4426 if ((nd->nd_flag & ND_GSSINTEGRITY) != 0) 4427 clp->lc_flags |= LCL_GSSINTEGRITY; 4428 else if ((nd->nd_flag & ND_GSSPRIVACY) != 0) 4429 clp->lc_flags |= LCL_GSSPRIVACY; 4430 } else 4431 clp->lc_flags = LCL_NFSV41; 4432 if ((nd->nd_flag & ND_NFSV42) != 0) 4433 clp->lc_flags |= LCL_NFSV42; 4434 if ((nd->nd_flag & ND_GSS) != 0 && nd->nd_princlen > 0) { 4435 clp->lc_flags |= LCL_NAME; 4436 clp->lc_namelen = nd->nd_princlen; 4437 clp->lc_name = &clp->lc_id[idlen]; 4438 NFSBCOPY(nd->nd_principal, clp->lc_name, clp->lc_namelen); 4439 } else { 4440 clp->lc_uid = nd->nd_cred->cr_uid; 4441 clp->lc_gid = nd->nd_cred->cr_gid; 4442 } 4443 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 4444 v41flags = fxdr_unsigned(uint32_t, *tl++); 4445 if ((v41flags & ~(NFSV4EXCH_SUPPMOVEDREFER | NFSV4EXCH_SUPPMOVEDMIGR | 4446 NFSV4EXCH_BINDPRINCSTATEID | NFSV4EXCH_MASKPNFS | 4447 NFSV4EXCH_UPDCONFIRMEDRECA)) != 0) { 4448 nd->nd_repstat = NFSERR_INVAL; 4449 goto nfsmout; 4450 } 4451 if ((v41flags & NFSV4EXCH_UPDCONFIRMEDRECA) != 0) 4452 confirm.lval[1] = 1; 4453 else 4454 confirm.lval[1] = 0; 4455 if (nfsrv_devidcnt == 0) 4456 v41flags = NFSV4EXCH_USENONPNFS | NFSV4EXCH_USEPNFSDS; 4457 else 4458 v41flags = NFSV4EXCH_USEPNFSMDS; 4459 sp4type = fxdr_unsigned(uint32_t, *tl); 4460 if (sp4type == NFSV4EXCH_SP4MACHCRED) { 4461 if ((nd->nd_flag & (ND_GSSINTEGRITY | ND_GSSPRIVACY)) == 0 || 4462 nd->nd_princlen == 0) 4463 nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK); 4464 if (nd->nd_repstat == 0) 4465 nd->nd_repstat = nfsrv_getopbits(nd, &mustops, NULL); 4466 if (nd->nd_repstat == 0) 4467 nd->nd_repstat = nfsrv_getopbits(nd, &allowops, NULL); 4468 if (nd->nd_repstat != 0) 4469 goto nfsmout; 4470 NFSOPBIT_CLRNOTMUST(&mustops); 4471 NFSSET_OPBIT(&clp->lc_mustops, &mustops); 4472 NFSOPBIT_CLRNOTALLOWED(&allowops); 4473 NFSSET_OPBIT(&clp->lc_allowops, &allowops); 4474 clp->lc_flags |= LCL_MACHCRED; 4475 } else if (sp4type != NFSV4EXCH_SP4NONE) { 4476 nd->nd_repstat = NFSERR_NOTSUPP; 4477 goto nfsmout; 4478 } 4479 4480 /* 4481 * nfsrv_setclient() does the actual work of adding it to the 4482 * client list. If there is no error, the structure has been 4483 * linked into the client list and clp should no longer be used 4484 * here. When an error is returned, it has not been linked in, 4485 * so it should be free'd. 4486 */ 4487 nd->nd_repstat = nfsrv_setclient(nd, &clp, &clientid, &confirm, p); 4488 if (clp != NULL) { 4489 free(clp->lc_req.nr_nam, M_SONAME); 4490 NFSFREEMUTEX(&clp->lc_req.nr_mtx); 4491 free(clp->lc_stateid, M_NFSDCLIENT); 4492 free(clp, M_NFSDCLIENT); 4493 } 4494 if (nd->nd_repstat == 0) { 4495 if (confirm.lval[1] != 0) 4496 v41flags |= NFSV4EXCH_CONFIRMEDR; 4497 NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 3 * NFSX_UNSIGNED); 4498 *tl++ = clientid.lval[0]; /* ClientID */ 4499 *tl++ = clientid.lval[1]; 4500 *tl++ = txdr_unsigned(confirm.lval[0]); /* SequenceID */ 4501 *tl++ = txdr_unsigned(v41flags); /* Exch flags */ 4502 *tl = txdr_unsigned(sp4type); /* No SSV */ 4503 if (sp4type == NFSV4EXCH_SP4MACHCRED) { 4504 nfsrv_putopbit(nd, &mustops); 4505 nfsrv_putopbit(nd, &allowops); 4506 } 4507 NFSM_BUILD(tl, uint32_t *, NFSX_HYPER); 4508 txdr_hyper(nfsrv_owner_minor, tl); /* Owner Minor */ 4509 if (nfsrv_owner_major[0] != 0) 4510 s = nfsrv_owner_major; 4511 else 4512 s = nd->nd_cred->cr_prison->pr_hostuuid; 4513 nfsm_strtom(nd, s, strlen(s)); /* Owner Major */ 4514 if (nfsrv_scope[0] != 0) 4515 s = nfsrv_scope; 4516 else 4517 s = nd->nd_cred->cr_prison->pr_hostuuid; 4518 nfsm_strtom(nd, s, strlen(s) ); /* Scope */ 4519 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 4520 *tl = txdr_unsigned(1); 4521 (void)nfsm_strtom(nd, "freebsd.org", strlen("freebsd.org")); 4522 (void)nfsm_strtom(nd, version, strlen(version)); 4523 NFSM_BUILD(tl, uint32_t *, NFSX_V4TIME); 4524 verstime.tv_sec = 1293840000; /* Jan 1, 2011 */ 4525 verstime.tv_nsec = 0; 4526 txdr_nfsv4time(&verstime, tl); 4527 } 4528 NFSEXITCODE2(0, nd); 4529 return (0); 4530 nfsmout: 4531 if (clp != NULL) { 4532 free(clp->lc_req.nr_nam, M_SONAME); 4533 NFSFREEMUTEX(&clp->lc_req.nr_mtx); 4534 free(clp->lc_stateid, M_NFSDCLIENT); 4535 free(clp, M_NFSDCLIENT); 4536 } 4537 NFSEXITCODE2(error, nd); 4538 return (error); 4539 } 4540 4541 /* 4542 * nfsv4 create session service 4543 */ 4544 int 4545 nfsrvd_createsession(struct nfsrv_descript *nd, __unused int isdgram, 4546 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4547 { 4548 uint32_t *tl; 4549 int error = 0; 4550 nfsquad_t clientid, confirm; 4551 struct nfsdsession *sep = NULL; 4552 uint32_t rdmacnt; 4553 struct thread *p = curthread; 4554 static bool do_printf = true; 4555 4556 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4557 goto nfsmout; 4558 sep = (struct nfsdsession *)malloc(sizeof(struct nfsdsession), 4559 M_NFSDSESSION, M_WAITOK | M_ZERO); 4560 sep->sess_refcnt = 1; 4561 mtx_init(&sep->sess_cbsess.nfsess_mtx, "nfscbsession", NULL, MTX_DEF); 4562 NFSM_DISSECT(tl, uint32_t *, NFSX_HYPER + 2 * NFSX_UNSIGNED); 4563 clientid.lval[0] = *tl++; 4564 clientid.lval[1] = *tl++; 4565 confirm.lval[0] = fxdr_unsigned(uint32_t, *tl++); 4566 sep->sess_crflags = fxdr_unsigned(uint32_t, *tl); 4567 /* Persistent sessions and RDMA are not supported. */ 4568 sep->sess_crflags &= NFSV4CRSESS_CONNBACKCHAN; 4569 4570 /* Fore channel attributes. */ 4571 NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED); 4572 tl++; /* Header pad always 0. */ 4573 sep->sess_maxreq = fxdr_unsigned(uint32_t, *tl++); 4574 if (sep->sess_maxreq > sb_max_adj - NFS_MAXXDR) { 4575 sep->sess_maxreq = sb_max_adj - NFS_MAXXDR; 4576 if (do_printf) 4577 printf("Consider increasing kern.ipc.maxsockbuf\n"); 4578 do_printf = false; 4579 } 4580 sep->sess_maxresp = fxdr_unsigned(uint32_t, *tl++); 4581 if (sep->sess_maxresp > sb_max_adj - NFS_MAXXDR) { 4582 sep->sess_maxresp = sb_max_adj - NFS_MAXXDR; 4583 if (do_printf) 4584 printf("Consider increasing kern.ipc.maxsockbuf\n"); 4585 do_printf = false; 4586 } 4587 sep->sess_maxrespcached = fxdr_unsigned(uint32_t, *tl++); 4588 sep->sess_maxops = fxdr_unsigned(uint32_t, *tl++); 4589 sep->sess_maxslots = fxdr_unsigned(uint32_t, *tl++); 4590 if (sep->sess_maxslots > NFSV4_SLOTS) 4591 sep->sess_maxslots = NFSV4_SLOTS; 4592 rdmacnt = fxdr_unsigned(uint32_t, *tl); 4593 if (rdmacnt > 1) { 4594 nd->nd_repstat = NFSERR_BADXDR; 4595 goto nfsmout; 4596 } else if (rdmacnt == 1) 4597 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 4598 4599 /* Back channel attributes. */ 4600 NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED); 4601 tl++; /* Header pad always 0. */ 4602 sep->sess_cbmaxreq = fxdr_unsigned(uint32_t, *tl++); 4603 sep->sess_cbmaxresp = fxdr_unsigned(uint32_t, *tl++); 4604 sep->sess_cbmaxrespcached = fxdr_unsigned(uint32_t, *tl++); 4605 sep->sess_cbmaxops = fxdr_unsigned(uint32_t, *tl++); 4606 sep->sess_cbsess.nfsess_foreslots = fxdr_unsigned(uint32_t, *tl++); 4607 rdmacnt = fxdr_unsigned(uint32_t, *tl); 4608 if (rdmacnt > 1) { 4609 nd->nd_repstat = NFSERR_BADXDR; 4610 goto nfsmout; 4611 } else if (rdmacnt == 1) 4612 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 4613 4614 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 4615 sep->sess_cbprogram = fxdr_unsigned(uint32_t, *tl); 4616 4617 /* 4618 * nfsrv_getclient() searches the client list for a match and 4619 * returns the appropriate NFSERR status. 4620 */ 4621 nd->nd_repstat = nfsrv_getclient(clientid, CLOPS_CONFIRM | CLOPS_RENEW, 4622 NULL, sep, confirm, sep->sess_cbprogram, nd, p); 4623 if (nd->nd_repstat == 0) { 4624 NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID); 4625 NFSBCOPY(sep->sess_sessionid, tl, NFSX_V4SESSIONID); 4626 NFSM_BUILD(tl, uint32_t *, 18 * NFSX_UNSIGNED); 4627 *tl++ = txdr_unsigned(confirm.lval[0]); /* sequenceid */ 4628 *tl++ = txdr_unsigned(sep->sess_crflags); 4629 4630 /* Fore channel attributes. */ 4631 *tl++ = 0; 4632 *tl++ = txdr_unsigned(sep->sess_maxreq); 4633 *tl++ = txdr_unsigned(sep->sess_maxresp); 4634 *tl++ = txdr_unsigned(sep->sess_maxrespcached); 4635 *tl++ = txdr_unsigned(sep->sess_maxops); 4636 *tl++ = txdr_unsigned(sep->sess_maxslots); 4637 *tl++ = txdr_unsigned(1); 4638 *tl++ = txdr_unsigned(0); /* No RDMA. */ 4639 4640 /* Back channel attributes. */ 4641 *tl++ = 0; 4642 *tl++ = txdr_unsigned(sep->sess_cbmaxreq); 4643 *tl++ = txdr_unsigned(sep->sess_cbmaxresp); 4644 *tl++ = txdr_unsigned(sep->sess_cbmaxrespcached); 4645 *tl++ = txdr_unsigned(sep->sess_cbmaxops); 4646 *tl++ = txdr_unsigned(sep->sess_cbsess.nfsess_foreslots); 4647 *tl++ = txdr_unsigned(1); 4648 *tl = txdr_unsigned(0); /* No RDMA. */ 4649 } 4650 nfsmout: 4651 if (nd->nd_repstat != 0 && sep != NULL) 4652 free(sep, M_NFSDSESSION); 4653 NFSEXITCODE2(error, nd); 4654 return (error); 4655 } 4656 4657 /* 4658 * nfsv4 sequence service 4659 */ 4660 int 4661 nfsrvd_sequence(struct nfsrv_descript *nd, __unused int isdgram, 4662 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4663 { 4664 uint32_t *tl; 4665 uint32_t highest_slotid, sequenceid, sflags, target_highest_slotid; 4666 int cache_this, error = 0; 4667 struct thread *p = curthread; 4668 4669 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4670 goto nfsmout; 4671 NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID); 4672 NFSBCOPY(tl, nd->nd_sessionid, NFSX_V4SESSIONID); 4673 NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED); 4674 sequenceid = fxdr_unsigned(uint32_t, *tl++); 4675 nd->nd_slotid = fxdr_unsigned(uint32_t, *tl++); 4676 highest_slotid = fxdr_unsigned(uint32_t, *tl++); 4677 if (*tl == newnfs_true) 4678 cache_this = 1; 4679 else 4680 cache_this = 0; 4681 nd->nd_repstat = nfsrv_checksequence(nd, sequenceid, &highest_slotid, 4682 &target_highest_slotid, cache_this, &sflags, p); 4683 if (nd->nd_repstat != NFSERR_BADSLOT) 4684 nd->nd_flag |= ND_HASSEQUENCE; 4685 if (nd->nd_repstat == 0) { 4686 NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID); 4687 NFSBCOPY(nd->nd_sessionid, tl, NFSX_V4SESSIONID); 4688 NFSM_BUILD(tl, uint32_t *, 5 * NFSX_UNSIGNED); 4689 *tl++ = txdr_unsigned(sequenceid); 4690 *tl++ = txdr_unsigned(nd->nd_slotid); 4691 *tl++ = txdr_unsigned(highest_slotid); 4692 *tl++ = txdr_unsigned(target_highest_slotid); 4693 *tl = txdr_unsigned(sflags); 4694 } 4695 nfsmout: 4696 NFSEXITCODE2(error, nd); 4697 return (error); 4698 } 4699 4700 /* 4701 * nfsv4 reclaim complete service 4702 */ 4703 int 4704 nfsrvd_reclaimcomplete(struct nfsrv_descript *nd, __unused int isdgram, 4705 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4706 { 4707 uint32_t *tl; 4708 int error = 0, onefs; 4709 4710 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 4711 /* 4712 * I believe that a ReclaimComplete with rca_one_fs == TRUE is only 4713 * to be used after a file system has been transferred to a different 4714 * file server. However, RFC5661 is somewhat vague w.r.t. this and 4715 * the ESXi 6.7 client does both a ReclaimComplete with rca_one_fs 4716 * == TRUE and one with ReclaimComplete with rca_one_fs == FALSE. 4717 * Therefore, just ignore the rca_one_fs == TRUE operation and return 4718 * NFS_OK without doing anything. 4719 */ 4720 onefs = 0; 4721 if (*tl == newnfs_true) 4722 onefs = 1; 4723 nd->nd_repstat = nfsrv_checkreclaimcomplete(nd, onefs); 4724 nfsmout: 4725 NFSEXITCODE2(error, nd); 4726 return (error); 4727 } 4728 4729 /* 4730 * nfsv4 destroy clientid service 4731 */ 4732 int 4733 nfsrvd_destroyclientid(struct nfsrv_descript *nd, __unused int isdgram, 4734 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4735 { 4736 uint32_t *tl; 4737 nfsquad_t clientid; 4738 int error = 0; 4739 struct thread *p = curthread; 4740 4741 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4742 goto nfsmout; 4743 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); 4744 clientid.lval[0] = *tl++; 4745 clientid.lval[1] = *tl; 4746 nd->nd_repstat = nfsrv_destroyclient(nd, clientid, p); 4747 nfsmout: 4748 NFSEXITCODE2(error, nd); 4749 return (error); 4750 } 4751 4752 /* 4753 * nfsv4 bind connection to session service 4754 */ 4755 int 4756 nfsrvd_bindconnsess(struct nfsrv_descript *nd, __unused int isdgram, 4757 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4758 { 4759 uint32_t *tl; 4760 uint8_t sessid[NFSX_V4SESSIONID]; 4761 int error = 0, foreaft; 4762 4763 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4764 goto nfsmout; 4765 NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID + 2 * NFSX_UNSIGNED); 4766 NFSBCOPY(tl, sessid, NFSX_V4SESSIONID); 4767 tl += (NFSX_V4SESSIONID / NFSX_UNSIGNED); 4768 foreaft = fxdr_unsigned(int, *tl++); 4769 if (*tl == newnfs_true) { 4770 /* RDMA is not supported. */ 4771 nd->nd_repstat = NFSERR_NOTSUPP; 4772 goto nfsmout; 4773 } 4774 4775 nd->nd_repstat = nfsrv_bindconnsess(nd, sessid, &foreaft); 4776 if (nd->nd_repstat == 0) { 4777 NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID + 2 * 4778 NFSX_UNSIGNED); 4779 NFSBCOPY(sessid, tl, NFSX_V4SESSIONID); 4780 tl += (NFSX_V4SESSIONID / NFSX_UNSIGNED); 4781 *tl++ = txdr_unsigned(foreaft); 4782 *tl = newnfs_false; 4783 } 4784 nfsmout: 4785 NFSEXITCODE2(error, nd); 4786 return (error); 4787 } 4788 4789 /* 4790 * nfsv4 destroy session service 4791 */ 4792 int 4793 nfsrvd_destroysession(struct nfsrv_descript *nd, __unused int isdgram, 4794 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4795 { 4796 uint8_t *cp, sessid[NFSX_V4SESSIONID]; 4797 int error = 0; 4798 4799 if ((nd->nd_repstat = nfsd_checkrootexp(nd)) != 0) 4800 goto nfsmout; 4801 NFSM_DISSECT(cp, uint8_t *, NFSX_V4SESSIONID); 4802 NFSBCOPY(cp, sessid, NFSX_V4SESSIONID); 4803 nd->nd_repstat = nfsrv_destroysession(nd, sessid); 4804 nfsmout: 4805 NFSEXITCODE2(error, nd); 4806 return (error); 4807 } 4808 4809 /* 4810 * nfsv4 free stateid service 4811 */ 4812 int 4813 nfsrvd_freestateid(struct nfsrv_descript *nd, __unused int isdgram, 4814 __unused vnode_t vp, __unused struct nfsexstuff *exp) 4815 { 4816 uint32_t *tl; 4817 nfsv4stateid_t stateid; 4818 int error = 0; 4819 struct thread *p = curthread; 4820 4821 NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID); 4822 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 4823 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 4824 4825 /* 4826 * For the special stateid of other all 0s and seqid == 1, set the 4827 * stateid to the current stateid, if it is set. 4828 */ 4829 if (stateid.seqid == 1 && stateid.other[0] == 0 && 4830 stateid.other[1] == 0 && stateid.other[2] == 0) { 4831 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 4832 stateid = nd->nd_curstateid; 4833 stateid.seqid = 0; 4834 } else { 4835 nd->nd_repstat = NFSERR_BADSTATEID; 4836 goto nfsmout; 4837 } 4838 } 4839 4840 nd->nd_repstat = nfsrv_freestateid(nd, &stateid, p); 4841 4842 /* If the current stateid has been free'd, unset it. */ 4843 if (nd->nd_repstat == 0 && (nd->nd_flag & ND_CURSTATEID) != 0 && 4844 stateid.other[0] == nd->nd_curstateid.other[0] && 4845 stateid.other[1] == nd->nd_curstateid.other[1] && 4846 stateid.other[2] == nd->nd_curstateid.other[2]) 4847 nd->nd_flag &= ~ND_CURSTATEID; 4848 nfsmout: 4849 NFSEXITCODE2(error, nd); 4850 return (error); 4851 } 4852 4853 /* 4854 * nfsv4 layoutget service 4855 */ 4856 int 4857 nfsrvd_layoutget(struct nfsrv_descript *nd, __unused int isdgram, 4858 vnode_t vp, struct nfsexstuff *exp) 4859 { 4860 uint32_t *tl; 4861 nfsv4stateid_t stateid; 4862 int error = 0, layoutlen, layouttype, iomode, maxcnt, retonclose; 4863 uint64_t offset, len, minlen; 4864 char *layp; 4865 struct thread *p = curthread; 4866 4867 NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED + 3 * NFSX_HYPER + 4868 NFSX_STATEID); 4869 tl++; /* Signal layout available. Ignore for now. */ 4870 layouttype = fxdr_unsigned(int, *tl++); 4871 iomode = fxdr_unsigned(int, *tl++); 4872 offset = fxdr_hyper(tl); tl += 2; 4873 len = fxdr_hyper(tl); tl += 2; 4874 minlen = fxdr_hyper(tl); tl += 2; 4875 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 4876 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 4877 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 4878 maxcnt = fxdr_unsigned(int, *tl); 4879 NFSD_DEBUG(4, "layoutget ltyp=%d iom=%d off=%ju len=%ju mlen=%ju\n", 4880 layouttype, iomode, (uintmax_t)offset, (uintmax_t)len, 4881 (uintmax_t)minlen); 4882 if (len < minlen || 4883 (minlen != UINT64_MAX && offset + minlen < offset) || 4884 (len != UINT64_MAX && offset + len < offset)) { 4885 nd->nd_repstat = NFSERR_INVAL; 4886 goto nfsmout; 4887 } 4888 4889 /* 4890 * For the special stateid of other all 0s and seqid == 1, set the 4891 * stateid to the current stateid, if it is set. 4892 */ 4893 if (stateid.seqid == 1 && stateid.other[0] == 0 && 4894 stateid.other[1] == 0 && stateid.other[2] == 0) { 4895 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 4896 stateid = nd->nd_curstateid; 4897 stateid.seqid = 0; 4898 } else { 4899 nd->nd_repstat = NFSERR_BADSTATEID; 4900 goto nfsmout; 4901 } 4902 } 4903 4904 layp = NULL; 4905 if (layouttype == NFSLAYOUT_NFSV4_1_FILES && nfsrv_maxpnfsmirror == 1) 4906 layp = malloc(NFSX_V4FILELAYOUT, M_TEMP, M_WAITOK); 4907 else if (layouttype == NFSLAYOUT_FLEXFILE) 4908 layp = malloc(NFSX_V4FLEXLAYOUT(nfsrv_maxpnfsmirror), M_TEMP, 4909 M_WAITOK); 4910 else 4911 nd->nd_repstat = NFSERR_UNKNLAYOUTTYPE; 4912 if (layp != NULL) 4913 nd->nd_repstat = nfsrv_layoutget(nd, vp, exp, layouttype, 4914 &iomode, &offset, &len, minlen, &stateid, maxcnt, 4915 &retonclose, &layoutlen, layp, nd->nd_cred, p); 4916 NFSD_DEBUG(4, "nfsrv_layoutget stat=%u layoutlen=%d\n", nd->nd_repstat, 4917 layoutlen); 4918 if (nd->nd_repstat == 0) { 4919 /* For NFSv4.1, set the Current StateID. */ 4920 if ((nd->nd_flag & ND_NFSV41) != 0) { 4921 nd->nd_curstateid = stateid; 4922 nd->nd_flag |= ND_CURSTATEID; 4923 } 4924 NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED + NFSX_STATEID + 4925 2 * NFSX_HYPER); 4926 *tl++ = txdr_unsigned(retonclose); 4927 *tl++ = txdr_unsigned(stateid.seqid); 4928 NFSBCOPY(stateid.other, tl, NFSX_STATEIDOTHER); 4929 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 4930 *tl++ = txdr_unsigned(1); /* Only returns one layout. */ 4931 txdr_hyper(offset, tl); tl += 2; 4932 txdr_hyper(len, tl); tl += 2; 4933 *tl++ = txdr_unsigned(iomode); 4934 *tl = txdr_unsigned(layouttype); 4935 nfsm_strtom(nd, layp, layoutlen); 4936 } else if (nd->nd_repstat == NFSERR_LAYOUTTRYLATER) { 4937 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 4938 *tl = newnfs_false; 4939 } 4940 free(layp, M_TEMP); 4941 nfsmout: 4942 vput(vp); 4943 NFSEXITCODE2(error, nd); 4944 return (error); 4945 } 4946 4947 /* 4948 * nfsv4 layoutcommit service 4949 */ 4950 int 4951 nfsrvd_layoutcommit(struct nfsrv_descript *nd, __unused int isdgram, 4952 vnode_t vp, struct nfsexstuff *exp) 4953 { 4954 uint32_t *tl; 4955 nfsv4stateid_t stateid; 4956 int error = 0, hasnewoff, hasnewmtime, layouttype, maxcnt, reclaim; 4957 int hasnewsize; 4958 uint64_t offset, len, newoff = 0, newsize; 4959 struct timespec newmtime; 4960 char *layp; 4961 struct thread *p = curthread; 4962 4963 layp = NULL; 4964 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + 2 * NFSX_HYPER + 4965 NFSX_STATEID); 4966 offset = fxdr_hyper(tl); tl += 2; 4967 len = fxdr_hyper(tl); tl += 2; 4968 reclaim = fxdr_unsigned(int, *tl++); 4969 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 4970 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 4971 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 4972 /* 4973 * For the special stateid of other all 0s and seqid == 1, set the 4974 * stateid to the current stateid, if it is set. 4975 */ 4976 if (stateid.seqid == 1 && stateid.other[0] == 0 && 4977 stateid.other[1] == 0 && stateid.other[2] == 0) { 4978 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 4979 stateid = nd->nd_curstateid; 4980 stateid.seqid = 0; 4981 } else { 4982 nd->nd_repstat = NFSERR_BADSTATEID; 4983 goto nfsmout; 4984 } 4985 } 4986 4987 hasnewoff = fxdr_unsigned(int, *tl); 4988 if (hasnewoff != 0) { 4989 NFSM_DISSECT(tl, uint32_t *, NFSX_HYPER + NFSX_UNSIGNED); 4990 newoff = fxdr_hyper(tl); tl += 2; 4991 } else 4992 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 4993 hasnewmtime = fxdr_unsigned(int, *tl); 4994 if (hasnewmtime != 0) { 4995 NFSM_DISSECT(tl, uint32_t *, NFSX_V4TIME + 2 * NFSX_UNSIGNED); 4996 fxdr_nfsv4time(tl, &newmtime); 4997 tl += (NFSX_V4TIME / NFSX_UNSIGNED); 4998 } else 4999 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); 5000 layouttype = fxdr_unsigned(int, *tl++); 5001 maxcnt = fxdr_unsigned(int, *tl); 5002 if (maxcnt > 0) { 5003 layp = malloc(maxcnt + 1, M_TEMP, M_WAITOK); 5004 error = nfsrv_mtostr(nd, layp, maxcnt); 5005 if (error != 0) 5006 goto nfsmout; 5007 } 5008 nd->nd_repstat = nfsrv_layoutcommit(nd, vp, layouttype, hasnewoff, 5009 newoff, offset, len, hasnewmtime, &newmtime, reclaim, &stateid, 5010 maxcnt, layp, &hasnewsize, &newsize, nd->nd_cred, p); 5011 NFSD_DEBUG(4, "nfsrv_layoutcommit stat=%u\n", nd->nd_repstat); 5012 if (nd->nd_repstat == 0) { 5013 if (hasnewsize != 0) { 5014 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED + NFSX_HYPER); 5015 *tl++ = newnfs_true; 5016 txdr_hyper(newsize, tl); 5017 } else { 5018 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5019 *tl = newnfs_false; 5020 } 5021 } 5022 nfsmout: 5023 free(layp, M_TEMP); 5024 vput(vp); 5025 NFSEXITCODE2(error, nd); 5026 return (error); 5027 } 5028 5029 /* 5030 * nfsv4 layoutreturn service 5031 */ 5032 int 5033 nfsrvd_layoutreturn(struct nfsrv_descript *nd, __unused int isdgram, 5034 vnode_t vp, struct nfsexstuff *exp) 5035 { 5036 uint32_t *tl, *layp; 5037 nfsv4stateid_t stateid; 5038 int error = 0, fnd, kind, layouttype, iomode, maxcnt, reclaim; 5039 uint64_t offset, len; 5040 struct thread *p = curthread; 5041 5042 layp = NULL; 5043 NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED); 5044 reclaim = *tl++; 5045 layouttype = fxdr_unsigned(int, *tl++); 5046 iomode = fxdr_unsigned(int, *tl++); 5047 kind = fxdr_unsigned(int, *tl); 5048 NFSD_DEBUG(4, "layoutreturn recl=%d ltyp=%d iom=%d kind=%d\n", reclaim, 5049 layouttype, iomode, kind); 5050 if (kind == NFSV4LAYOUTRET_FILE) { 5051 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_HYPER + NFSX_STATEID + 5052 NFSX_UNSIGNED); 5053 offset = fxdr_hyper(tl); tl += 2; 5054 len = fxdr_hyper(tl); tl += 2; 5055 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 5056 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 5057 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 5058 5059 /* 5060 * For the special stateid of other all 0s and seqid == 1, set 5061 * the stateid to the current stateid, if it is set. 5062 */ 5063 if (stateid.seqid == 1 && stateid.other[0] == 0 && 5064 stateid.other[1] == 0 && stateid.other[2] == 0) { 5065 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 5066 stateid = nd->nd_curstateid; 5067 stateid.seqid = 0; 5068 } else { 5069 nd->nd_repstat = NFSERR_BADSTATEID; 5070 goto nfsmout; 5071 } 5072 } 5073 5074 maxcnt = fxdr_unsigned(int, *tl); 5075 /* 5076 * There is no fixed upper bound defined in the RFCs, 5077 * but 128Kbytes should be more than sufficient. 5078 */ 5079 if (maxcnt < 0 || maxcnt > 131072) 5080 maxcnt = 0; 5081 if (maxcnt > 0) { 5082 layp = malloc(maxcnt + 1, M_TEMP, M_WAITOK); 5083 error = nfsrv_mtostr(nd, (char *)layp, maxcnt); 5084 if (error != 0) 5085 goto nfsmout; 5086 } 5087 } else { 5088 if (reclaim == newnfs_true) { 5089 nd->nd_repstat = NFSERR_INVAL; 5090 goto nfsmout; 5091 } 5092 offset = len = 0; 5093 maxcnt = 0; 5094 } 5095 nd->nd_repstat = nfsrv_layoutreturn(nd, vp, layouttype, iomode, 5096 offset, len, reclaim, kind, &stateid, maxcnt, layp, &fnd, 5097 nd->nd_cred, p); 5098 NFSD_DEBUG(4, "nfsrv_layoutreturn stat=%u fnd=%d\n", nd->nd_repstat, 5099 fnd); 5100 if (nd->nd_repstat == 0) { 5101 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5102 if (fnd != 0) { 5103 *tl = newnfs_true; 5104 NFSM_BUILD(tl, uint32_t *, NFSX_STATEID); 5105 *tl++ = txdr_unsigned(stateid.seqid); 5106 NFSBCOPY(stateid.other, tl, NFSX_STATEIDOTHER); 5107 } else 5108 *tl = newnfs_false; 5109 } 5110 nfsmout: 5111 free(layp, M_TEMP); 5112 vput(vp); 5113 NFSEXITCODE2(error, nd); 5114 return (error); 5115 } 5116 5117 /* 5118 * nfsv4 layout error service 5119 */ 5120 int 5121 nfsrvd_layouterror(struct nfsrv_descript *nd, __unused int isdgram, 5122 vnode_t vp, struct nfsexstuff *exp) 5123 { 5124 uint32_t *tl; 5125 nfsv4stateid_t stateid; 5126 int cnt, error = 0, i, stat; 5127 int opnum __unused; 5128 char devid[NFSX_V4DEVICEID]; 5129 uint64_t offset, len; 5130 5131 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_HYPER + NFSX_STATEID + 5132 NFSX_UNSIGNED); 5133 offset = fxdr_hyper(tl); tl += 2; 5134 len = fxdr_hyper(tl); tl += 2; 5135 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 5136 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 5137 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 5138 cnt = fxdr_unsigned(int, *tl); 5139 NFSD_DEBUG(4, "layouterror off=%ju len=%ju cnt=%d\n", (uintmax_t)offset, 5140 (uintmax_t)len, cnt); 5141 /* 5142 * For the special stateid of other all 0s and seqid == 1, set 5143 * the stateid to the current stateid, if it is set. 5144 */ 5145 if (stateid.seqid == 1 && stateid.other[0] == 0 && 5146 stateid.other[1] == 0 && stateid.other[2] == 0) { 5147 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 5148 stateid = nd->nd_curstateid; 5149 stateid.seqid = 0; 5150 } else { 5151 nd->nd_repstat = NFSERR_BADSTATEID; 5152 goto nfsmout; 5153 } 5154 } 5155 5156 /* 5157 * Ignore offset, len and stateid for now. 5158 */ 5159 for (i = 0; i < cnt; i++) { 5160 NFSM_DISSECT(tl, uint32_t *, NFSX_V4DEVICEID + 2 * 5161 NFSX_UNSIGNED); 5162 NFSBCOPY(tl, devid, NFSX_V4DEVICEID); 5163 tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); 5164 stat = fxdr_unsigned(int, *tl++); 5165 opnum = fxdr_unsigned(int, *tl); 5166 NFSD_DEBUG(4, "nfsrvd_layouterr op=%d stat=%d\n", opnum, stat); 5167 /* 5168 * Except for NFSERR_ACCES, NFSERR_STALE and NFSERR_NOSPC 5169 * errors, disable the mirror. 5170 */ 5171 if (stat != NFSERR_ACCES && stat != NFSERR_STALE && 5172 stat != NFSERR_NOSPC) 5173 nfsrv_delds(devid, curthread); 5174 5175 /* For NFSERR_NOSPC, mark all deviceids and layouts. */ 5176 if (stat == NFSERR_NOSPC) 5177 nfsrv_marknospc(devid, true); 5178 } 5179 nfsmout: 5180 vput(vp); 5181 NFSEXITCODE2(error, nd); 5182 return (error); 5183 } 5184 5185 /* 5186 * nfsv4 layout stats service 5187 */ 5188 int 5189 nfsrvd_layoutstats(struct nfsrv_descript *nd, __unused int isdgram, 5190 vnode_t vp, struct nfsexstuff *exp) 5191 { 5192 uint32_t *tl; 5193 nfsv4stateid_t stateid; 5194 int cnt, error = 0; 5195 int layouttype __unused; 5196 char devid[NFSX_V4DEVICEID] __unused; 5197 uint64_t offset __unused, len __unused, readcount __unused; 5198 uint64_t readbytes __unused, writecount __unused, writebytes __unused; 5199 5200 NFSM_DISSECT(tl, uint32_t *, 6 * NFSX_HYPER + NFSX_STATEID + 5201 NFSX_V4DEVICEID + 2 * NFSX_UNSIGNED); 5202 offset = fxdr_hyper(tl); tl += 2; 5203 len = fxdr_hyper(tl); tl += 2; 5204 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 5205 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 5206 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 5207 readcount = fxdr_hyper(tl); tl += 2; 5208 readbytes = fxdr_hyper(tl); tl += 2; 5209 writecount = fxdr_hyper(tl); tl += 2; 5210 writebytes = fxdr_hyper(tl); tl += 2; 5211 NFSBCOPY(tl, devid, NFSX_V4DEVICEID); 5212 tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); 5213 layouttype = fxdr_unsigned(int, *tl++); 5214 cnt = fxdr_unsigned(int, *tl); 5215 error = nfsm_advance(nd, NFSM_RNDUP(cnt), -1); 5216 if (error != 0) 5217 goto nfsmout; 5218 NFSD_DEBUG(4, "layoutstats cnt=%d\n", cnt); 5219 /* 5220 * For the special stateid of other all 0s and seqid == 1, set 5221 * the stateid to the current stateid, if it is set. 5222 */ 5223 if (stateid.seqid == 1 && stateid.other[0] == 0 && 5224 stateid.other[1] == 0 && stateid.other[2] == 0) { 5225 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 5226 stateid = nd->nd_curstateid; 5227 stateid.seqid = 0; 5228 } else { 5229 nd->nd_repstat = NFSERR_BADSTATEID; 5230 goto nfsmout; 5231 } 5232 } 5233 5234 /* 5235 * No use for the stats for now. 5236 */ 5237 nfsmout: 5238 vput(vp); 5239 NFSEXITCODE2(error, nd); 5240 return (error); 5241 } 5242 5243 /* 5244 * nfsv4 io_advise service 5245 */ 5246 int 5247 nfsrvd_ioadvise(struct nfsrv_descript *nd, __unused int isdgram, 5248 vnode_t vp, struct nfsexstuff *exp) 5249 { 5250 uint32_t *tl; 5251 nfsv4stateid_t stateid; 5252 nfsattrbit_t hints; 5253 int error = 0, ret; 5254 off_t offset, len; 5255 5256 NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID + 2 * NFSX_HYPER); 5257 stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 5258 NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER); 5259 tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED); 5260 offset = fxdr_hyper(tl); tl += 2; 5261 len = fxdr_hyper(tl); 5262 error = nfsrv_getattrbits(nd, &hints, NULL, NULL); 5263 if (error != 0) 5264 goto nfsmout; 5265 /* 5266 * For the special stateid of other all 0s and seqid == 1, set 5267 * the stateid to the current stateid, if it is set. 5268 */ 5269 if (stateid.seqid == 1 && stateid.other[0] == 0 && 5270 stateid.other[1] == 0 && stateid.other[2] == 0) { 5271 if ((nd->nd_flag & ND_CURSTATEID) != 0) { 5272 stateid = nd->nd_curstateid; 5273 stateid.seqid = 0; 5274 } else { 5275 nd->nd_repstat = NFSERR_BADSTATEID; 5276 goto nfsmout; 5277 } 5278 } 5279 5280 if (offset < 0) { 5281 nd->nd_repstat = NFSERR_INVAL; 5282 goto nfsmout; 5283 } 5284 if (len < 0) 5285 len = 0; 5286 if (vp->v_type != VREG) { 5287 if (vp->v_type == VDIR) 5288 nd->nd_repstat = NFSERR_ISDIR; 5289 else 5290 nd->nd_repstat = NFSERR_WRONGTYPE; 5291 goto nfsmout; 5292 } 5293 5294 /* 5295 * For now, we can only handle WILLNEED and DONTNEED and don't use 5296 * the stateid. 5297 */ 5298 if ((NFSISSET_ATTRBIT(&hints, NFSV4IOHINT_WILLNEED) && 5299 !NFSISSET_ATTRBIT(&hints, NFSV4IOHINT_DONTNEED)) || 5300 (NFSISSET_ATTRBIT(&hints, NFSV4IOHINT_DONTNEED) && 5301 !NFSISSET_ATTRBIT(&hints, NFSV4IOHINT_WILLNEED))) { 5302 NFSVOPUNLOCK(vp); 5303 if (NFSISSET_ATTRBIT(&hints, NFSV4IOHINT_WILLNEED)) { 5304 ret = VOP_ADVISE(vp, offset, len, POSIX_FADV_WILLNEED); 5305 NFSZERO_ATTRBIT(&hints); 5306 if (ret == 0) 5307 NFSSETBIT_ATTRBIT(&hints, NFSV4IOHINT_WILLNEED); 5308 else 5309 NFSSETBIT_ATTRBIT(&hints, NFSV4IOHINT_NORMAL); 5310 } else { 5311 ret = VOP_ADVISE(vp, offset, len, POSIX_FADV_DONTNEED); 5312 NFSZERO_ATTRBIT(&hints); 5313 if (ret == 0) 5314 NFSSETBIT_ATTRBIT(&hints, NFSV4IOHINT_DONTNEED); 5315 else 5316 NFSSETBIT_ATTRBIT(&hints, NFSV4IOHINT_NORMAL); 5317 } 5318 vrele(vp); 5319 } else { 5320 NFSZERO_ATTRBIT(&hints); 5321 NFSSETBIT_ATTRBIT(&hints, NFSV4IOHINT_NORMAL); 5322 vput(vp); 5323 } 5324 nfsrv_putattrbit(nd, &hints); 5325 NFSEXITCODE2(error, nd); 5326 return (error); 5327 nfsmout: 5328 vput(vp); 5329 NFSEXITCODE2(error, nd); 5330 return (error); 5331 } 5332 5333 /* 5334 * nfsv4 getdeviceinfo service 5335 */ 5336 int 5337 nfsrvd_getdevinfo(struct nfsrv_descript *nd, __unused int isdgram, 5338 __unused vnode_t vp, __unused struct nfsexstuff *exp) 5339 { 5340 uint32_t *tl, maxcnt, notify[NFSV4_NOTIFYBITMAP]; 5341 int cnt, devaddrlen, error = 0, i, layouttype; 5342 char devid[NFSX_V4DEVICEID], *devaddr; 5343 time_t dev_time; 5344 5345 NFSM_DISSECT(tl, uint32_t *, 3 * NFSX_UNSIGNED + NFSX_V4DEVICEID); 5346 NFSBCOPY(tl, devid, NFSX_V4DEVICEID); 5347 tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); 5348 layouttype = fxdr_unsigned(int, *tl++); 5349 maxcnt = fxdr_unsigned(uint32_t, *tl++); 5350 cnt = fxdr_unsigned(int, *tl); 5351 NFSD_DEBUG(4, "getdevinfo ltyp=%d maxcnt=%u bitcnt=%d\n", layouttype, 5352 maxcnt, cnt); 5353 if (cnt > NFSV4_NOTIFYBITMAP || cnt < 0) { 5354 nd->nd_repstat = NFSERR_INVAL; 5355 goto nfsmout; 5356 } 5357 if (cnt > 0) { 5358 NFSM_DISSECT(tl, uint32_t *, cnt * NFSX_UNSIGNED); 5359 for (i = 0; i < cnt; i++) 5360 notify[i] = fxdr_unsigned(uint32_t, *tl++); 5361 } 5362 for (i = cnt; i < NFSV4_NOTIFYBITMAP; i++) 5363 notify[i] = 0; 5364 5365 /* 5366 * Check that the device id is not stale. Device ids are recreated 5367 * each time the nfsd threads are restarted. 5368 */ 5369 NFSBCOPY(devid, &dev_time, sizeof(dev_time)); 5370 if (dev_time != nfsdev_time) { 5371 nd->nd_repstat = NFSERR_NOENT; 5372 goto nfsmout; 5373 } 5374 5375 /* Look for the device id. */ 5376 nd->nd_repstat = nfsrv_getdevinfo(devid, layouttype, &maxcnt, 5377 notify, &devaddrlen, &devaddr); 5378 NFSD_DEBUG(4, "nfsrv_getdevinfo stat=%u\n", nd->nd_repstat); 5379 if (nd->nd_repstat == 0) { 5380 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5381 *tl = txdr_unsigned(layouttype); 5382 nfsm_strtom(nd, devaddr, devaddrlen); 5383 cnt = 0; 5384 for (i = 0; i < NFSV4_NOTIFYBITMAP; i++) { 5385 if (notify[i] != 0) 5386 cnt = i + 1; 5387 } 5388 NFSM_BUILD(tl, uint32_t *, (cnt + 1) * NFSX_UNSIGNED); 5389 *tl++ = txdr_unsigned(cnt); 5390 for (i = 0; i < cnt; i++) 5391 *tl++ = txdr_unsigned(notify[i]); 5392 } else if (nd->nd_repstat == NFSERR_TOOSMALL) { 5393 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5394 *tl = txdr_unsigned(maxcnt); 5395 } 5396 nfsmout: 5397 NFSEXITCODE2(error, nd); 5398 return (error); 5399 } 5400 5401 /* 5402 * nfsv4 test stateid service 5403 */ 5404 int 5405 nfsrvd_teststateid(struct nfsrv_descript *nd, __unused int isdgram, 5406 __unused vnode_t vp, __unused struct nfsexstuff *exp) 5407 { 5408 uint32_t *tl; 5409 nfsv4stateid_t *stateidp = NULL, *tstateidp; 5410 int cnt, error = 0, i, ret; 5411 struct thread *p = curthread; 5412 5413 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 5414 cnt = fxdr_unsigned(int, *tl); 5415 if (cnt <= 0 || cnt > 1024) { 5416 nd->nd_repstat = NFSERR_BADXDR; 5417 goto nfsmout; 5418 } 5419 stateidp = mallocarray(cnt, sizeof(nfsv4stateid_t), M_TEMP, M_WAITOK); 5420 tstateidp = stateidp; 5421 for (i = 0; i < cnt; i++) { 5422 NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID); 5423 tstateidp->seqid = fxdr_unsigned(uint32_t, *tl++); 5424 NFSBCOPY(tl, tstateidp->other, NFSX_STATEIDOTHER); 5425 tstateidp++; 5426 } 5427 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5428 *tl = txdr_unsigned(cnt); 5429 tstateidp = stateidp; 5430 for (i = 0; i < cnt; i++) { 5431 ret = nfsrv_teststateid(nd, tstateidp, p); 5432 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5433 *tl = txdr_unsigned(ret); 5434 tstateidp++; 5435 } 5436 nfsmout: 5437 free(stateidp, M_TEMP); 5438 NFSEXITCODE2(error, nd); 5439 return (error); 5440 } 5441 5442 /* 5443 * nfs allocate service 5444 */ 5445 int 5446 nfsrvd_allocate(struct nfsrv_descript *nd, __unused int isdgram, 5447 vnode_t vp, struct nfsexstuff *exp) 5448 { 5449 uint32_t *tl; 5450 struct nfsvattr forat; 5451 int error = 0, forat_ret = 1, gotproxystateid; 5452 off_t off, len; 5453 struct nfsstate st, *stp = &st; 5454 struct nfslock lo, *lop = &lo; 5455 nfsv4stateid_t stateid; 5456 nfsquad_t clientid; 5457 nfsattrbit_t attrbits; 5458 5459 if (!nfsrv_doallocate) { 5460 /* 5461 * If any exported file system, such as a ZFS one, cannot 5462 * do VOP_ALLOCATE(), this operation cannot be supported 5463 * for NFSv4.2. This cannot be done 'per filesystem', but 5464 * must be for the entire nfsd NFSv4.2 service. 5465 */ 5466 nd->nd_repstat = NFSERR_NOTSUPP; 5467 goto nfsmout; 5468 } 5469 gotproxystateid = 0; 5470 NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID + 2 * NFSX_HYPER); 5471 stp->ls_flags = (NFSLCK_CHECK | NFSLCK_WRITEACCESS); 5472 lop->lo_flags = NFSLCK_WRITE; 5473 stp->ls_ownerlen = 0; 5474 stp->ls_op = NULL; 5475 stp->ls_uid = nd->nd_cred->cr_uid; 5476 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 5477 clientid.lval[0] = stp->ls_stateid.other[0] = *tl++; 5478 clientid.lval[1] = stp->ls_stateid.other[1] = *tl++; 5479 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 5480 if ((nd->nd_flag & ND_NFSV41) != 0) 5481 clientid.qval = nd->nd_clientid.qval; 5482 else if (nd->nd_clientid.qval != clientid.qval) 5483 printf("EEK2 multiple clids\n"); 5484 } else { 5485 if ((nd->nd_flag & ND_NFSV41) != 0) 5486 printf("EEK! no clientid from session\n"); 5487 nd->nd_flag |= ND_IMPLIEDCLID; 5488 nd->nd_clientid.qval = clientid.qval; 5489 } 5490 stp->ls_stateid.other[2] = *tl++; 5491 /* 5492 * Don't allow this to be done for a DS. 5493 */ 5494 if ((nd->nd_flag & ND_DSSERVER) != 0) 5495 nd->nd_repstat = NFSERR_NOTSUPP; 5496 /* However, allow the proxy stateid. */ 5497 if (stp->ls_stateid.seqid == 0xffffffff && 5498 stp->ls_stateid.other[0] == 0x55555555 && 5499 stp->ls_stateid.other[1] == 0x55555555 && 5500 stp->ls_stateid.other[2] == 0x55555555) 5501 gotproxystateid = 1; 5502 off = fxdr_hyper(tl); tl += 2; 5503 lop->lo_first = off; 5504 len = fxdr_hyper(tl); 5505 lop->lo_end = lop->lo_first + len; 5506 /* 5507 * Sanity check the offset and length. 5508 * off and len are off_t (signed int64_t) whereas 5509 * lo_first and lo_end are uint64_t and, as such, 5510 * if off >= 0 && len > 0, lo_end cannot overflow 5511 * unless off_t is changed to something other than 5512 * int64_t. Check lo_end < lo_first in case that 5513 * is someday the case. 5514 */ 5515 if (nd->nd_repstat == 0 && (len <= 0 || off < 0 || lop->lo_end > 5516 OFF_MAX || lop->lo_end < lop->lo_first)) 5517 nd->nd_repstat = NFSERR_INVAL; 5518 5519 if (nd->nd_repstat == 0 && vp->v_type != VREG) 5520 nd->nd_repstat = NFSERR_WRONGTYPE; 5521 NFSZERO_ATTRBIT(&attrbits); 5522 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 5523 forat_ret = nfsvno_getattr(vp, &forat, nd, curthread, 1, &attrbits); 5524 if (nd->nd_repstat == 0) 5525 nd->nd_repstat = forat_ret; 5526 if (nd->nd_repstat == 0 && (forat.na_uid != nd->nd_cred->cr_uid || 5527 NFSVNO_EXSTRICTACCESS(exp))) 5528 nd->nd_repstat = nfsvno_accchk(vp, VWRITE, nd->nd_cred, exp, 5529 curthread, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, 5530 NULL); 5531 if (nd->nd_repstat == 0 && gotproxystateid == 0) 5532 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid, 5533 &stateid, exp, nd, curthread); 5534 5535 NFSD_DEBUG(4, "nfsrvd_allocate: off=%jd len=%jd stat=%d\n", 5536 (intmax_t)off, (intmax_t)len, nd->nd_repstat); 5537 if (nd->nd_repstat == 0) 5538 nd->nd_repstat = nfsvno_allocate(vp, off, len, nd->nd_cred, 5539 curthread); 5540 NFSD_DEBUG(4, "nfsrvd_allocate: aft nfsvno_allocate=%d\n", 5541 nd->nd_repstat); 5542 vput(vp); 5543 NFSEXITCODE2(0, nd); 5544 return (0); 5545 nfsmout: 5546 vput(vp); 5547 NFSEXITCODE2(error, nd); 5548 return (error); 5549 } 5550 5551 /* 5552 * nfs deallocate service 5553 */ 5554 int 5555 nfsrvd_deallocate(struct nfsrv_descript *nd, __unused int isdgram, 5556 vnode_t vp, struct nfsexstuff *exp) 5557 { 5558 uint32_t *tl; 5559 struct nfsvattr forat; 5560 int error = 0, forat_ret = 1, gotproxystateid; 5561 off_t off, len; 5562 struct nfsstate st, *stp = &st; 5563 struct nfslock lo, *lop = &lo; 5564 nfsv4stateid_t stateid; 5565 nfsquad_t clientid; 5566 nfsattrbit_t attrbits; 5567 5568 gotproxystateid = 0; 5569 NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID + 2 * NFSX_HYPER); 5570 stp->ls_flags = (NFSLCK_CHECK | NFSLCK_WRITEACCESS); 5571 lop->lo_flags = NFSLCK_WRITE; 5572 stp->ls_ownerlen = 0; 5573 stp->ls_op = NULL; 5574 stp->ls_uid = nd->nd_cred->cr_uid; 5575 stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); 5576 clientid.lval[0] = stp->ls_stateid.other[0] = *tl++; 5577 clientid.lval[1] = stp->ls_stateid.other[1] = *tl++; 5578 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) { 5579 if ((nd->nd_flag & ND_NFSV41) != 0) 5580 clientid.qval = nd->nd_clientid.qval; 5581 else if (nd->nd_clientid.qval != clientid.qval) 5582 printf("EEK2 multiple clids\n"); 5583 } else { 5584 if ((nd->nd_flag & ND_NFSV41) != 0) 5585 printf("EEK! no clientid from session\n"); 5586 nd->nd_flag |= ND_IMPLIEDCLID; 5587 nd->nd_clientid.qval = clientid.qval; 5588 } 5589 stp->ls_stateid.other[2] = *tl++; 5590 /* 5591 * Don't allow this to be done for a DS. 5592 */ 5593 if ((nd->nd_flag & ND_DSSERVER) != 0) 5594 nd->nd_repstat = NFSERR_NOTSUPP; 5595 /* However, allow the proxy stateid. */ 5596 if (stp->ls_stateid.seqid == 0xffffffff && 5597 stp->ls_stateid.other[0] == 0x55555555 && 5598 stp->ls_stateid.other[1] == 0x55555555 && 5599 stp->ls_stateid.other[2] == 0x55555555) 5600 gotproxystateid = 1; 5601 off = fxdr_hyper(tl); tl += 2; 5602 lop->lo_first = off; 5603 len = fxdr_hyper(tl); 5604 if (len < 0) 5605 len = OFF_MAX; 5606 NFSD_DEBUG(4, "dealloc: off=%jd len=%jd\n", (intmax_t)off, 5607 (intmax_t)len); 5608 lop->lo_end = lop->lo_first + len; 5609 /* 5610 * Sanity check the offset and length. 5611 * off and len are off_t (signed int64_t) whereas 5612 * lo_first and lo_end are uint64_t and, as such, 5613 * if off >= 0 && len > 0, lo_end cannot overflow 5614 * unless off_t is changed to something other than 5615 * int64_t. Check lo_end < lo_first in case that 5616 * is someday the case. 5617 * The error to return is not specified by RFC 7862 so I 5618 * made this compatible with the Linux knfsd. 5619 */ 5620 if (nd->nd_repstat == 0) { 5621 if (off < 0 || lop->lo_end > NFSRV_MAXFILESIZE) 5622 nd->nd_repstat = NFSERR_FBIG; 5623 else if (len == 0 || lop->lo_end < lop->lo_first) 5624 nd->nd_repstat = NFSERR_INVAL; 5625 } 5626 5627 if (nd->nd_repstat == 0 && vp->v_type != VREG) 5628 nd->nd_repstat = NFSERR_WRONGTYPE; 5629 NFSZERO_ATTRBIT(&attrbits); 5630 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 5631 forat_ret = nfsvno_getattr(vp, &forat, nd, curthread, 1, &attrbits); 5632 if (nd->nd_repstat == 0) 5633 nd->nd_repstat = forat_ret; 5634 if (nd->nd_repstat == 0 && (forat.na_uid != nd->nd_cred->cr_uid || 5635 NFSVNO_EXSTRICTACCESS(exp))) 5636 nd->nd_repstat = nfsvno_accchk(vp, VWRITE, nd->nd_cred, exp, 5637 curthread, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, 5638 NULL); 5639 if (nd->nd_repstat == 0 && gotproxystateid == 0) 5640 nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid, 5641 &stateid, exp, nd, curthread); 5642 5643 if (nd->nd_repstat == 0) 5644 nd->nd_repstat = nfsvno_deallocate(vp, off, len, nd->nd_cred, 5645 curthread); 5646 vput(vp); 5647 NFSD_DEBUG(4, "eo deallocate=%d\n", nd->nd_repstat); 5648 NFSEXITCODE2(0, nd); 5649 return (0); 5650 nfsmout: 5651 vput(vp); 5652 NFSEXITCODE2(error, nd); 5653 return (error); 5654 } 5655 5656 /* 5657 * nfs copy service 5658 */ 5659 int 5660 nfsrvd_copy_file_range(struct nfsrv_descript *nd, __unused int isdgram, 5661 vnode_t vp, vnode_t tovp, struct nfsexstuff *exp, struct nfsexstuff *toexp) 5662 { 5663 uint32_t *tl; 5664 struct nfsvattr at; 5665 int cnt, error = 0, ret; 5666 off_t inoff, outoff; 5667 uint64_t len; 5668 size_t xfer; 5669 struct nfsstate inst, outst, *instp = &inst, *outstp = &outst; 5670 struct nfslock inlo, outlo, *inlop = &inlo, *outlop = &outlo; 5671 nfsquad_t clientid; 5672 nfsv4stateid_t stateid; 5673 nfsattrbit_t attrbits; 5674 void *rl_rcookie, *rl_wcookie; 5675 5676 rl_rcookie = rl_wcookie = NULL; 5677 if (nfsrv_maxcopyrange == 0 || nfsrv_devidcnt > 0) { 5678 /* 5679 * For a pNFS server, reply NFSERR_NOTSUPP so that the client 5680 * will do the copy via I/O on the DS(s). 5681 * If vfs.nfsd.maxcopyrange set to 0, disable Copy. 5682 */ 5683 nd->nd_repstat = NFSERR_NOTSUPP; 5684 goto nfsmout; 5685 } 5686 if (vp == tovp) { 5687 /* Copying a byte range within the same file is not allowed. */ 5688 nd->nd_repstat = NFSERR_INVAL; 5689 goto nfsmout; 5690 } 5691 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_STATEID + 3 * NFSX_HYPER + 5692 3 * NFSX_UNSIGNED); 5693 instp->ls_flags = (NFSLCK_CHECK | NFSLCK_READACCESS); 5694 inlop->lo_flags = NFSLCK_READ; 5695 instp->ls_ownerlen = 0; 5696 instp->ls_op = NULL; 5697 instp->ls_uid = nd->nd_cred->cr_uid; 5698 instp->ls_stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 5699 clientid.lval[0] = instp->ls_stateid.other[0] = *tl++; 5700 clientid.lval[1] = instp->ls_stateid.other[1] = *tl++; 5701 if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) 5702 clientid.qval = nd->nd_clientid.qval; 5703 instp->ls_stateid.other[2] = *tl++; 5704 outstp->ls_flags = (NFSLCK_CHECK | NFSLCK_WRITEACCESS); 5705 outlop->lo_flags = NFSLCK_WRITE; 5706 outstp->ls_ownerlen = 0; 5707 outstp->ls_op = NULL; 5708 outstp->ls_uid = nd->nd_cred->cr_uid; 5709 outstp->ls_stateid.seqid = fxdr_unsigned(uint32_t, *tl++); 5710 outstp->ls_stateid.other[0] = *tl++; 5711 outstp->ls_stateid.other[1] = *tl++; 5712 outstp->ls_stateid.other[2] = *tl++; 5713 inoff = fxdr_hyper(tl); tl += 2; 5714 inlop->lo_first = inoff; 5715 outoff = fxdr_hyper(tl); tl += 2; 5716 outlop->lo_first = outoff; 5717 len = fxdr_hyper(tl); tl += 2; 5718 if (len == 0) { 5719 /* len == 0 means to EOF. */ 5720 inlop->lo_end = OFF_MAX; 5721 outlop->lo_end = OFF_MAX; 5722 } else { 5723 inlop->lo_end = inlop->lo_first + len; 5724 outlop->lo_end = outlop->lo_first + len; 5725 } 5726 5727 /* 5728 * At this time only consecutive, synchronous copy is supported, 5729 * so ca_consecutive and ca_synchronous can be ignored. 5730 */ 5731 tl += 2; 5732 5733 cnt = fxdr_unsigned(int, *tl); 5734 if ((nd->nd_flag & ND_DSSERVER) != 0 || cnt != 0) 5735 nd->nd_repstat = NFSERR_NOTSUPP; 5736 if (nd->nd_repstat == 0 && (inoff > OFF_MAX || outoff > OFF_MAX || 5737 inlop->lo_end > OFF_MAX || outlop->lo_end > OFF_MAX || 5738 inlop->lo_end < inlop->lo_first || outlop->lo_end < 5739 outlop->lo_first)) 5740 nd->nd_repstat = NFSERR_INVAL; 5741 5742 if (nd->nd_repstat == 0 && vp->v_type != VREG) 5743 nd->nd_repstat = NFSERR_WRONGTYPE; 5744 5745 /* Check permissions for the input file. */ 5746 NFSZERO_ATTRBIT(&attrbits); 5747 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 5748 ret = nfsvno_getattr(vp, &at, nd, curthread, 1, &attrbits); 5749 if (nd->nd_repstat == 0) 5750 nd->nd_repstat = ret; 5751 if (nd->nd_repstat == 0 && (at.na_uid != nd->nd_cred->cr_uid || 5752 NFSVNO_EXSTRICTACCESS(exp))) 5753 nd->nd_repstat = nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, 5754 curthread, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, 5755 NULL); 5756 if (nd->nd_repstat == 0) 5757 nd->nd_repstat = nfsrv_lockctrl(vp, &instp, &inlop, NULL, 5758 clientid, &stateid, exp, nd, curthread); 5759 NFSVOPUNLOCK(vp); 5760 if (nd->nd_repstat != 0) 5761 goto out; 5762 5763 error = NFSVOPLOCK(tovp, LK_SHARED); 5764 if (error != 0) 5765 goto out; 5766 if (tovp->v_type != VREG) 5767 nd->nd_repstat = NFSERR_WRONGTYPE; 5768 5769 /* For the output file, we only need the Owner attribute. */ 5770 ret = nfsvno_getattr(tovp, &at, nd, curthread, 1, &attrbits); 5771 if (nd->nd_repstat == 0) 5772 nd->nd_repstat = ret; 5773 if (nd->nd_repstat == 0 && (at.na_uid != nd->nd_cred->cr_uid || 5774 NFSVNO_EXSTRICTACCESS(exp))) 5775 nd->nd_repstat = nfsvno_accchk(tovp, VWRITE, nd->nd_cred, toexp, 5776 curthread, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, 5777 NULL); 5778 if (nd->nd_repstat == 0) 5779 nd->nd_repstat = nfsrv_lockctrl(tovp, &outstp, &outlop, NULL, 5780 clientid, &stateid, toexp, nd, curthread); 5781 NFSVOPUNLOCK(tovp); 5782 5783 /* Range lock the byte ranges for both invp and outvp. */ 5784 if (nd->nd_repstat == 0) { 5785 for (;;) { 5786 if (len == 0) { 5787 rl_wcookie = vn_rangelock_wlock(tovp, outoff, 5788 OFF_MAX); 5789 rl_rcookie = vn_rangelock_tryrlock(vp, inoff, 5790 OFF_MAX); 5791 } else { 5792 rl_wcookie = vn_rangelock_wlock(tovp, outoff, 5793 outoff + len); 5794 rl_rcookie = vn_rangelock_tryrlock(vp, inoff, 5795 inoff + len); 5796 } 5797 if (rl_rcookie != NULL) 5798 break; 5799 vn_rangelock_unlock(tovp, rl_wcookie); 5800 if (len == 0) 5801 rl_rcookie = vn_rangelock_rlock(vp, inoff, 5802 OFF_MAX); 5803 else 5804 rl_rcookie = vn_rangelock_rlock(vp, inoff, 5805 inoff + len); 5806 vn_rangelock_unlock(vp, rl_rcookie); 5807 } 5808 5809 error = NFSVOPLOCK(vp, LK_SHARED); 5810 if (error == 0) { 5811 ret = nfsvno_getattr(vp, &at, nd, curthread, 1, NULL); 5812 if (ret == 0) { 5813 /* 5814 * Since invp is range locked, na_size should 5815 * not change. 5816 */ 5817 if (len == 0 && at.na_size > inoff) { 5818 /* 5819 * If len == 0, set it based on invp's 5820 * size. If offset is past EOF, just 5821 * leave len == 0. 5822 */ 5823 len = at.na_size - inoff; 5824 } else if (nfsrv_linux42server == 0 && 5825 inoff + len > at.na_size) { 5826 /* 5827 * RFC-7862 says that NFSERR_INVAL must 5828 * be returned when inoff + len exceeds 5829 * the file size, however the NFSv4.2 5830 * Linux client likes to do this, so 5831 * only check if nfsrv_linux42server 5832 * is not set. 5833 */ 5834 nd->nd_repstat = NFSERR_INVAL; 5835 } 5836 } 5837 NFSVOPUNLOCK(vp); 5838 if (ret != 0 && nd->nd_repstat == 0) 5839 nd->nd_repstat = ret; 5840 } else if (nd->nd_repstat == 0) 5841 nd->nd_repstat = error; 5842 } 5843 5844 /* 5845 * Do the actual copy to an upper limit of vfs.nfsd.maxcopyrange. 5846 * This size limit can be set to limit the time a copy RPC will 5847 * take. 5848 */ 5849 if (len > nfsrv_maxcopyrange) 5850 xfer = nfsrv_maxcopyrange; 5851 else 5852 xfer = len; 5853 if (nd->nd_repstat == 0) { 5854 nd->nd_repstat = vn_copy_file_range(vp, &inoff, tovp, &outoff, 5855 &xfer, COPY_FILE_RANGE_TIMEO1SEC, nd->nd_cred, nd->nd_cred, 5856 NULL); 5857 if (nd->nd_repstat == 0) 5858 len = xfer; 5859 } 5860 5861 /* Unlock the ranges. */ 5862 if (rl_rcookie != NULL) 5863 vn_rangelock_unlock(vp, rl_rcookie); 5864 if (rl_wcookie != NULL) 5865 vn_rangelock_unlock(tovp, rl_wcookie); 5866 5867 if (nd->nd_repstat == 0) { 5868 NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED + NFSX_HYPER + 5869 NFSX_VERF); 5870 *tl++ = txdr_unsigned(0); /* No callback ids. */ 5871 txdr_hyper(len, tl); tl += 2; 5872 *tl++ = txdr_unsigned(NFSWRITE_UNSTABLE); 5873 *tl++ = txdr_unsigned(nfsboottime.tv_sec); 5874 *tl++ = txdr_unsigned(nfsboottime.tv_usec); 5875 *tl++ = newnfs_true; 5876 *tl = newnfs_true; 5877 } 5878 out: 5879 vrele(vp); 5880 vrele(tovp); 5881 NFSEXITCODE2(error, nd); 5882 return (error); 5883 nfsmout: 5884 vput(vp); 5885 vrele(tovp); 5886 NFSEXITCODE2(error, nd); 5887 return (error); 5888 } 5889 5890 /* 5891 * nfs seek service 5892 */ 5893 int 5894 nfsrvd_seek(struct nfsrv_descript *nd, __unused int isdgram, 5895 vnode_t vp, struct nfsexstuff *exp) 5896 { 5897 uint32_t *tl; 5898 struct nfsvattr at; 5899 int content, error = 0; 5900 off_t off; 5901 u_long cmd; 5902 nfsattrbit_t attrbits; 5903 bool eof; 5904 5905 NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID + NFSX_HYPER + NFSX_UNSIGNED); 5906 /* Ignore the stateid for now. */ 5907 tl += (NFSX_STATEID / NFSX_UNSIGNED); 5908 off = fxdr_hyper(tl); tl += 2; 5909 content = fxdr_unsigned(int, *tl); 5910 if (content == NFSV4CONTENT_DATA) 5911 cmd = FIOSEEKDATA; 5912 else if (content == NFSV4CONTENT_HOLE) 5913 cmd = FIOSEEKHOLE; 5914 else 5915 nd->nd_repstat = NFSERR_BADXDR; 5916 if (nd->nd_repstat == 0 && vp->v_type == VDIR) 5917 nd->nd_repstat = NFSERR_ISDIR; 5918 if (nd->nd_repstat == 0 && vp->v_type != VREG) 5919 nd->nd_repstat = NFSERR_WRONGTYPE; 5920 if (nd->nd_repstat == 0 && off < 0) 5921 nd->nd_repstat = NFSERR_NXIO; 5922 if (nd->nd_repstat == 0) { 5923 /* Check permissions for the input file. */ 5924 NFSZERO_ATTRBIT(&attrbits); 5925 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 5926 nd->nd_repstat = nfsvno_getattr(vp, &at, nd, curthread, 1, 5927 &attrbits); 5928 } 5929 if (nd->nd_repstat == 0 && (at.na_uid != nd->nd_cred->cr_uid || 5930 NFSVNO_EXSTRICTACCESS(exp))) 5931 nd->nd_repstat = nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, 5932 curthread, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, 5933 NULL); 5934 if (nd->nd_repstat != 0) 5935 goto nfsmout; 5936 5937 /* nfsvno_seek() unlocks and vrele()s the vp. */ 5938 nd->nd_repstat = nfsvno_seek(nd, vp, cmd, &off, content, &eof, 5939 nd->nd_cred, curthread); 5940 if (nd->nd_repstat == 0 && eof && content == NFSV4CONTENT_DATA && 5941 nfsrv_linux42server != 0) 5942 nd->nd_repstat = NFSERR_NXIO; 5943 if (nd->nd_repstat == 0) { 5944 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED + NFSX_HYPER); 5945 if (eof) 5946 *tl++ = newnfs_true; 5947 else 5948 *tl++ = newnfs_false; 5949 txdr_hyper(off, tl); 5950 } 5951 NFSEXITCODE2(error, nd); 5952 return (error); 5953 nfsmout: 5954 vput(vp); 5955 NFSEXITCODE2(error, nd); 5956 return (error); 5957 } 5958 5959 /* 5960 * nfs get extended attribute service 5961 */ 5962 int 5963 nfsrvd_getxattr(struct nfsrv_descript *nd, __unused int isdgram, 5964 vnode_t vp, __unused struct nfsexstuff *exp) 5965 { 5966 uint32_t *tl; 5967 struct mbuf *mp = NULL, *mpend = NULL; 5968 int error, len; 5969 char *name; 5970 struct thread *p = curthread; 5971 uint16_t off; 5972 5973 error = 0; 5974 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 5975 len = fxdr_unsigned(int, *tl); 5976 if (len <= 0) { 5977 nd->nd_repstat = NFSERR_BADXDR; 5978 goto nfsmout; 5979 } 5980 if (len > EXTATTR_MAXNAMELEN) { 5981 nd->nd_repstat = NFSERR_NOXATTR; 5982 goto nfsmout; 5983 } 5984 name = malloc(len + 1, M_TEMP, M_WAITOK); 5985 nd->nd_repstat = nfsrv_mtostr(nd, name, len); 5986 if (nd->nd_repstat == 0) 5987 nd->nd_repstat = nfsvno_getxattr(vp, name, 5988 nd->nd_maxresp, nd->nd_cred, nd->nd_flag, 5989 nd->nd_maxextsiz, p, &mp, &mpend, &len); 5990 if (nd->nd_repstat == ENOATTR) 5991 nd->nd_repstat = NFSERR_NOXATTR; 5992 else if (nd->nd_repstat == EOPNOTSUPP) 5993 nd->nd_repstat = NFSERR_NOTSUPP; 5994 if (nd->nd_repstat == 0) { 5995 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 5996 *tl = txdr_unsigned(len); 5997 if (len > 0) { 5998 nd->nd_mb->m_next = mp; 5999 nd->nd_mb = mpend; 6000 if ((mpend->m_flags & M_EXTPG) != 0) { 6001 nd->nd_flag |= ND_EXTPG; 6002 nd->nd_bextpg = mpend->m_epg_npgs - 1; 6003 nd->nd_bpos = (char *)(void *) 6004 PHYS_TO_DMAP(mpend->m_epg_pa[nd->nd_bextpg]); 6005 off = (nd->nd_bextpg == 0) ? 6006 mpend->m_epg_1st_off : 0; 6007 nd->nd_bpos += off + mpend->m_epg_last_len; 6008 nd->nd_bextpgsiz = PAGE_SIZE - 6009 mpend->m_epg_last_len - off; 6010 } else 6011 nd->nd_bpos = mtod(mpend, char *) + 6012 mpend->m_len; 6013 } 6014 } 6015 free(name, M_TEMP); 6016 6017 nfsmout: 6018 if (nd->nd_repstat == 0) 6019 nd->nd_repstat = error; 6020 vput(vp); 6021 NFSEXITCODE2(0, nd); 6022 return (0); 6023 } 6024 6025 /* 6026 * nfs set extended attribute service 6027 */ 6028 int 6029 nfsrvd_setxattr(struct nfsrv_descript *nd, __unused int isdgram, 6030 vnode_t vp, __unused struct nfsexstuff *exp) 6031 { 6032 uint32_t *tl; 6033 struct nfsvattr ova, nva; 6034 nfsattrbit_t attrbits; 6035 int error, len, opt; 6036 char *name; 6037 size_t siz; 6038 struct thread *p = curthread; 6039 6040 error = 0; 6041 name = NULL; 6042 NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); 6043 opt = fxdr_unsigned(int, *tl++); 6044 len = fxdr_unsigned(int, *tl); 6045 if (len <= 0) { 6046 nd->nd_repstat = NFSERR_BADXDR; 6047 goto nfsmout; 6048 } 6049 if (len > EXTATTR_MAXNAMELEN) { 6050 nd->nd_repstat = NFSERR_NOXATTR; 6051 goto nfsmout; 6052 } 6053 name = malloc(len + 1, M_TEMP, M_WAITOK); 6054 error = nfsrv_mtostr(nd, name, len); 6055 if (error != 0) 6056 goto nfsmout; 6057 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 6058 len = fxdr_unsigned(int, *tl); 6059 if (len < 0 || len > IOSIZE_MAX) { 6060 nd->nd_repstat = NFSERR_XATTR2BIG; 6061 goto nfsmout; 6062 } 6063 switch (opt) { 6064 case NFSV4SXATTR_CREATE: 6065 error = VOP_GETEXTATTR(vp, EXTATTR_NAMESPACE_USER, name, NULL, 6066 &siz, nd->nd_cred, p); 6067 if (error != ENOATTR) 6068 nd->nd_repstat = NFSERR_EXIST; 6069 error = 0; 6070 break; 6071 case NFSV4SXATTR_REPLACE: 6072 error = VOP_GETEXTATTR(vp, EXTATTR_NAMESPACE_USER, name, NULL, 6073 &siz, nd->nd_cred, p); 6074 if (error != 0) 6075 nd->nd_repstat = NFSERR_NOXATTR; 6076 break; 6077 case NFSV4SXATTR_EITHER: 6078 break; 6079 default: 6080 nd->nd_repstat = NFSERR_BADXDR; 6081 } 6082 if (nd->nd_repstat != 0) 6083 goto nfsmout; 6084 6085 /* Now, do the Set Extended attribute, with Change before and after. */ 6086 NFSZERO_ATTRBIT(&attrbits); 6087 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 6088 nd->nd_repstat = nfsvno_getattr(vp, &ova, nd, p, 1, &attrbits); 6089 if (nd->nd_repstat == 0) { 6090 nd->nd_repstat = nfsvno_setxattr(vp, name, len, nd->nd_md, 6091 nd->nd_dpos, nd->nd_cred, p); 6092 if (nd->nd_repstat == ENXIO) 6093 nd->nd_repstat = NFSERR_XATTR2BIG; 6094 } 6095 if (nd->nd_repstat == 0 && len > 0) 6096 nd->nd_repstat = nfsm_advance(nd, NFSM_RNDUP(len), -1); 6097 if (nd->nd_repstat == 0) 6098 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, &attrbits); 6099 if (nd->nd_repstat == 0) { 6100 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER + NFSX_UNSIGNED); 6101 *tl++ = newnfs_true; 6102 txdr_hyper(ova.na_filerev, tl); tl += 2; 6103 txdr_hyper(nva.na_filerev, tl); 6104 } 6105 6106 nfsmout: 6107 free(name, M_TEMP); 6108 if (nd->nd_repstat == 0) 6109 nd->nd_repstat = error; 6110 vput(vp); 6111 NFSEXITCODE2(0, nd); 6112 return (0); 6113 } 6114 6115 /* 6116 * nfs remove extended attribute service 6117 */ 6118 int 6119 nfsrvd_rmxattr(struct nfsrv_descript *nd, __unused int isdgram, 6120 vnode_t vp, __unused struct nfsexstuff *exp) 6121 { 6122 uint32_t *tl; 6123 struct nfsvattr ova, nva; 6124 nfsattrbit_t attrbits; 6125 int error, len; 6126 char *name; 6127 struct thread *p = curthread; 6128 6129 error = 0; 6130 name = NULL; 6131 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); 6132 len = fxdr_unsigned(int, *tl); 6133 if (len <= 0) { 6134 nd->nd_repstat = NFSERR_BADXDR; 6135 goto nfsmout; 6136 } 6137 if (len > EXTATTR_MAXNAMELEN) { 6138 nd->nd_repstat = NFSERR_NOXATTR; 6139 goto nfsmout; 6140 } 6141 name = malloc(len + 1, M_TEMP, M_WAITOK); 6142 error = nfsrv_mtostr(nd, name, len); 6143 if (error != 0) 6144 goto nfsmout; 6145 6146 if ((nd->nd_flag & ND_IMPLIEDCLID) == 0) { 6147 printf("EEK! nfsrvd_rmxattr: no implied clientid\n"); 6148 error = NFSERR_NOXATTR; 6149 goto nfsmout; 6150 } 6151 /* 6152 * Now, do the Remove Extended attribute, with Change before and 6153 * after. 6154 */ 6155 NFSZERO_ATTRBIT(&attrbits); 6156 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); 6157 nd->nd_repstat = nfsvno_getattr(vp, &ova, nd, p, 1, &attrbits); 6158 if (nd->nd_repstat == 0) { 6159 nd->nd_repstat = nfsvno_rmxattr(nd, vp, name, nd->nd_cred, p); 6160 if (nd->nd_repstat == ENOATTR) 6161 nd->nd_repstat = NFSERR_NOXATTR; 6162 } 6163 if (nd->nd_repstat == 0) 6164 nd->nd_repstat = nfsvno_getattr(vp, &nva, nd, p, 1, &attrbits); 6165 if (nd->nd_repstat == 0) { 6166 NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER + NFSX_UNSIGNED); 6167 *tl++ = newnfs_true; 6168 txdr_hyper(ova.na_filerev, tl); tl += 2; 6169 txdr_hyper(nva.na_filerev, tl); 6170 } 6171 6172 nfsmout: 6173 free(name, M_TEMP); 6174 if (nd->nd_repstat == 0) 6175 nd->nd_repstat = error; 6176 vput(vp); 6177 NFSEXITCODE2(0, nd); 6178 return (0); 6179 } 6180 6181 /* 6182 * nfs list extended attribute service 6183 */ 6184 int 6185 nfsrvd_listxattr(struct nfsrv_descript *nd, __unused int isdgram, 6186 vnode_t vp, __unused struct nfsexstuff *exp) 6187 { 6188 uint32_t cnt, *tl, len, len2, i, pos, retlen; 6189 int error; 6190 uint64_t cookie, cookie2; 6191 u_char *buf; 6192 bool eof; 6193 struct thread *p = curthread; 6194 6195 error = 0; 6196 buf = NULL; 6197 NFSM_DISSECT(tl, uint32_t *, NFSX_HYPER + NFSX_UNSIGNED); 6198 /* 6199 * The cookie doesn't need to be in net byte order, but FreeBSD 6200 * does so to make it more readable in packet traces. 6201 */ 6202 cookie = fxdr_hyper(tl); tl += 2; 6203 len = fxdr_unsigned(uint32_t, *tl); 6204 if (len == 0 || cookie >= IOSIZE_MAX) { 6205 nd->nd_repstat = NFSERR_BADXDR; 6206 goto nfsmout; 6207 } 6208 if (len > nd->nd_maxresp - NFS_MAXXDR) 6209 len = nd->nd_maxresp - NFS_MAXXDR; 6210 len2 = len; 6211 nd->nd_repstat = nfsvno_listxattr(vp, cookie, nd->nd_cred, p, &buf, 6212 &len, &eof); 6213 if (nd->nd_repstat == EOPNOTSUPP) 6214 nd->nd_repstat = NFSERR_NOTSUPP; 6215 if (nd->nd_repstat == 0) { 6216 cookie2 = cookie + len; 6217 if (cookie2 < cookie) 6218 nd->nd_repstat = NFSERR_BADXDR; 6219 } 6220 retlen = NFSX_HYPER + 2 * NFSX_UNSIGNED; 6221 if (nd->nd_repstat == 0 && len2 < retlen) 6222 nd->nd_repstat = NFSERR_TOOSMALL; 6223 if (nd->nd_repstat == 0) { 6224 /* Now copy the entries out. */ 6225 if (len == 0) { 6226 /* The cookie was at eof. */ 6227 NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 2 * 6228 NFSX_UNSIGNED); 6229 txdr_hyper(cookie2, tl); tl += 2; 6230 *tl++ = txdr_unsigned(0); 6231 *tl = newnfs_true; 6232 goto nfsmout; 6233 } 6234 6235 /* Sanity check the cookie. */ 6236 for (pos = 0; pos < len; pos += (i + 1)) { 6237 if (pos == cookie) 6238 break; 6239 i = buf[pos]; 6240 } 6241 if (pos != cookie) { 6242 nd->nd_repstat = NFSERR_INVAL; 6243 goto nfsmout; 6244 } 6245 6246 /* Loop around copying the entrie(s) out. */ 6247 cnt = 0; 6248 len -= cookie; 6249 i = buf[pos]; 6250 while (i < len && len2 >= retlen + NFSM_RNDUP(i) + 6251 NFSX_UNSIGNED) { 6252 if (cnt == 0) { 6253 NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 6254 NFSX_UNSIGNED); 6255 txdr_hyper(cookie2, tl); tl += 2; 6256 } 6257 retlen += nfsm_strtom(nd, &buf[pos + 1], i); 6258 len -= (i + 1); 6259 pos += (i + 1); 6260 i = buf[pos]; 6261 cnt++; 6262 } 6263 /* 6264 * eof is set true/false by nfsvno_listxattr(), but if we 6265 * can't copy all entries returned by nfsvno_listxattr(), 6266 * we are not at eof. 6267 */ 6268 if (len > 0) 6269 eof = false; 6270 if (cnt > 0) { 6271 /* *tl is set above. */ 6272 *tl = txdr_unsigned(cnt); 6273 NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); 6274 if (eof) 6275 *tl = newnfs_true; 6276 else 6277 *tl = newnfs_false; 6278 } else 6279 nd->nd_repstat = NFSERR_TOOSMALL; 6280 } 6281 6282 nfsmout: 6283 free(buf, M_TEMP); 6284 if (nd->nd_repstat == 0) 6285 nd->nd_repstat = error; 6286 vput(vp); 6287 NFSEXITCODE2(0, nd); 6288 return (0); 6289 } 6290 6291 /* 6292 * nfsv4 service not supported 6293 */ 6294 int 6295 nfsrvd_notsupp(struct nfsrv_descript *nd, __unused int isdgram, 6296 __unused vnode_t vp, __unused struct nfsexstuff *exp) 6297 { 6298 6299 nd->nd_repstat = NFSERR_NOTSUPP; 6300 NFSEXITCODE2(0, nd); 6301 return (0); 6302 } 6303