36 37/* 38 * generally, I don't like #includes inside .h files, but it seems to 39 * be the easiest way to handle the port. 40 */ 41#include <fs/nfs/nfsport.h> 42#include <netinet/if_ether.h> 43#include <net/if_types.h> 44 45extern u_int32_t newnfs_true, newnfs_false, newnfs_xdrneg1; 46extern struct vop_vector newnfs_vnodeops; 47extern struct vop_vector newnfs_fifoops; 48extern uma_zone_t newnfsnode_zone; 49extern struct buf_ops buf_ops_newnfs; 50extern int ncl_pbuf_freecnt; 51extern short nfsv4_cbport; 52extern int nfscl_enablecallb; 53extern int nfs_numnfscbd; 54extern int nfscl_inited; 55struct mtx nfs_clstate_mutex; 56struct mtx ncl_iod_mutex; 57NFSDLOCKMUTEX; 58 59extern void (*ncl_call_invalcaches)(struct vnode *); 60 61/* 62 * Comparison function for vfs_hash functions. 63 */ 64int 65newnfs_vncmpf(struct vnode *vp, void *arg) 66{ 67 struct nfsfh *nfhp = (struct nfsfh *)arg; 68 struct nfsnode *np = VTONFS(vp); 69 70 if (np->n_fhp->nfh_len != nfhp->nfh_len || 71 NFSBCMP(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len)) 72 return (1); 73 return (0); 74} 75 76/* 77 * Look up a vnode/nfsnode by file handle. 78 * Callers must check for mount points!! 79 * In all cases, a pointer to a 80 * nfsnode structure is returned. 81 * This variant takes a "struct nfsfh *" as second argument and uses 82 * that structure up, either by hanging off the nfsnode or FREEing it. 83 */ 84int 85nfscl_nget(struct mount *mntp, struct vnode *dvp, struct nfsfh *nfhp, 86 struct componentname *cnp, struct thread *td, struct nfsnode **npp, 87 void *stuff) 88{ 89 struct nfsnode *np, *dnp; 90 struct vnode *vp, *nvp; 91 struct nfsv4node *newd, *oldd; 92 int error; 93 u_int hash; 94 struct nfsmount *nmp; 95 96 nmp = VFSTONFS(mntp); 97 dnp = VTONFS(dvp); 98 *npp = NULL; 99 100 hash = fnv_32_buf(nfhp->nfh_fh, nfhp->nfh_len, FNV1_32_INIT); 101 102 error = vfs_hash_get(mntp, hash, LK_EXCLUSIVE, 103 td, &nvp, newnfs_vncmpf, nfhp); 104 if (error == 0 && nvp != NULL) { 105 /* 106 * I believe there is a slight chance that vgonel() could 107 * get called on this vnode between when vn_lock() drops 108 * the VI_LOCK() and vget() acquires it again, so that it 109 * hasn't yet had v_usecount incremented. If this were to 110 * happen, the VI_DOOMED flag would be set, so check for 111 * that here. Since we now have the v_usecount incremented, 112 * we should be ok until we vrele() it, if the VI_DOOMED 113 * flag isn't set now. 114 */ 115 VI_LOCK(nvp); 116 if ((nvp->v_iflag & VI_DOOMED)) { 117 VI_UNLOCK(nvp); 118 vrele(nvp); 119 error = ENOENT; 120 } else { 121 VI_UNLOCK(nvp); 122 } 123 } 124 if (error) { 125 FREE((caddr_t)nfhp, M_NFSFH); 126 return (error); 127 } 128 if (nvp != NULL) { 129 np = VTONFS(nvp); 130 /* 131 * For NFSv4, check to see if it is the same name and 132 * replace the name, if it is different. 133 */ 134 oldd = newd = NULL; 135 if ((nmp->nm_flag & NFSMNT_NFSV4) && np->n_v4 != NULL && 136 nvp->v_type == VREG && 137 (np->n_v4->n4_namelen != cnp->cn_namelen || 138 NFSBCMP(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 139 cnp->cn_namelen) || 140 dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen || 141 NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 142 dnp->n_fhp->nfh_len))) { 143 MALLOC(newd, struct nfsv4node *, 144 sizeof (struct nfsv4node) + dnp->n_fhp->nfh_len + 145 + cnp->cn_namelen - 1, M_NFSV4NODE, M_WAITOK); 146 NFSLOCKNODE(np); 147 if (newd != NULL && np->n_v4 != NULL && nvp->v_type == VREG 148 && (np->n_v4->n4_namelen != cnp->cn_namelen || 149 NFSBCMP(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 150 cnp->cn_namelen) || 151 dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen || 152 NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 153 dnp->n_fhp->nfh_len))) { 154 oldd = np->n_v4; 155 np->n_v4 = newd; 156 newd = NULL; 157 np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len; 158 np->n_v4->n4_namelen = cnp->cn_namelen; 159 NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 160 dnp->n_fhp->nfh_len); 161 NFSBCOPY(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 162 cnp->cn_namelen); 163 } 164 NFSUNLOCKNODE(np); 165 } 166 if (newd != NULL) 167 FREE((caddr_t)newd, M_NFSV4NODE); 168 if (oldd != NULL) 169 FREE((caddr_t)oldd, M_NFSV4NODE); 170 *npp = np; 171 FREE((caddr_t)nfhp, M_NFSFH); 172 return (0); 173 } 174 175 /* 176 * Allocate before getnewvnode since doing so afterward 177 * might cause a bogus v_data pointer to get dereferenced 178 * elsewhere if zalloc should block. 179 */ 180 np = uma_zalloc(newnfsnode_zone, M_WAITOK | M_ZERO); 181 182 error = getnewvnode("newnfs", mntp, &newnfs_vnodeops, &nvp); 183 if (error) { 184 uma_zfree(newnfsnode_zone, np); 185 FREE((caddr_t)nfhp, M_NFSFH); 186 return (error); 187 } 188 vp = nvp; 189 vp->v_bufobj.bo_ops = &buf_ops_newnfs; 190 vp->v_data = np; 191 np->n_vnode = vp; 192 /* 193 * Initialize the mutex even if the vnode is going to be a loser. 194 * This simplifies the logic in reclaim, which can then unconditionally 195 * destroy the mutex (in the case of the loser, or if hash_insert 196 * happened to return an error no special casing is needed). 197 */ 198 mtx_init(&np->n_mtx, "NEWNFSnode lock", NULL, MTX_DEF | MTX_DUPOK); 199 200 /* 201 * Are we getting the root? If so, make sure the vnode flags 202 * are correct 203 */ 204 if ((nfhp->nfh_len == nmp->nm_fhsize) && 205 !bcmp(nfhp->nfh_fh, nmp->nm_fh, nfhp->nfh_len)) { 206 if (vp->v_type == VNON) 207 vp->v_type = VDIR; 208 vp->v_vflag |= VV_ROOT; 209 } 210 211 np->n_fhp = nfhp; 212 /* 213 * For NFSv4, we have to attach the directory file handle and 214 * file name, so that Open Ops can be done later. 215 */ 216 if (nmp->nm_flag & NFSMNT_NFSV4) { 217 MALLOC(np->n_v4, struct nfsv4node *, sizeof (struct nfsv4node) 218 + dnp->n_fhp->nfh_len + cnp->cn_namelen - 1, M_NFSV4NODE, 219 M_WAITOK); 220 np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len; 221 np->n_v4->n4_namelen = cnp->cn_namelen; 222 NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 223 dnp->n_fhp->nfh_len); 224 NFSBCOPY(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 225 cnp->cn_namelen); 226 } else { 227 np->n_v4 = NULL; 228 } 229 230 /* 231 * NFS supports recursive and shared locking. 232 */ 233 VN_LOCK_AREC(vp); 234 VN_LOCK_ASHARE(vp); 235 lockmgr(vp->v_vnlock, LK_EXCLUSIVE, NULL); 236 error = insmntque(vp, mntp); 237 if (error != 0) { 238 *npp = NULL; 239 mtx_destroy(&np->n_mtx); 240 FREE((caddr_t)nfhp, M_NFSFH); 241 if (np->n_v4 != NULL) 242 FREE((caddr_t)np->n_v4, M_NFSV4NODE); 243 uma_zfree(newnfsnode_zone, np); 244 return (error); 245 } 246 error = vfs_hash_insert(vp, hash, LK_EXCLUSIVE, 247 td, &nvp, newnfs_vncmpf, nfhp); 248 if (error) 249 return (error); 250 if (nvp != NULL) { 251 *npp = VTONFS(nvp); 252 /* vfs_hash_insert() vput()'s the losing vnode */ 253 return (0); 254 } 255 *npp = np; 256 257 return (0); 258} 259 260/* 261 * Anothe variant of nfs_nget(). This one is only used by reopen. It 262 * takes almost the same args as nfs_nget(), but only succeeds if an entry 263 * exists in the cache. (Since files should already be "open" with a 264 * vnode ref cnt on the node when reopen calls this, it should always 265 * succeed.) 266 * Also, don't get a vnode lock, since it may already be locked by some 267 * other process that is handling it. This is ok, since all other threads 268 * on the client are blocked by the nfsc_lock being exclusively held by the 269 * caller of this function. 270 */ 271int 272nfscl_ngetreopen(struct mount *mntp, u_int8_t *fhp, int fhsize, 273 struct thread *td, struct nfsnode **npp) 274{ 275 struct vnode *nvp; 276 u_int hash; 277 struct nfsfh *nfhp; 278 int error; 279 280 *npp = NULL; 281 /* For forced dismounts, just return error. */ 282 if ((mntp->mnt_kern_flag & MNTK_UNMOUNTF)) 283 return (EINTR); 284 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + fhsize, 285 M_NFSFH, M_WAITOK); 286 bcopy(fhp, &nfhp->nfh_fh[0], fhsize); 287 nfhp->nfh_len = fhsize; 288 289 hash = fnv_32_buf(fhp, fhsize, FNV1_32_INIT); 290 291 /* 292 * First, try to get the vnode locked, but don't block for the lock. 293 */ 294 error = vfs_hash_get(mntp, hash, (LK_EXCLUSIVE | LK_NOWAIT), td, &nvp, 295 newnfs_vncmpf, nfhp); 296 if (error == 0 && nvp != NULL) { 297 VOP_UNLOCK(nvp, 0); 298 } else if (error == EBUSY) { 299 /* 300 * The LK_EXCLOTHER lock type tells nfs_lock1() to not try 301 * and lock the vnode, but just get a v_usecount on it. 302 * LK_NOWAIT is set so that when vget() returns ENOENT, 303 * vfs_hash_get() fails instead of looping. 304 * If this succeeds, it is safe so long as a vflush() with 305 * FORCECLOSE has not been done. Since the Renew thread is 306 * stopped and the MNTK_UNMOUNTF flag is set before doing 307 * a vflush() with FORCECLOSE, we should be ok here. 308 */ 309 if ((mntp->mnt_kern_flag & MNTK_UNMOUNTF)) 310 error = EINTR; 311 else 312 error = vfs_hash_get(mntp, hash, 313 (LK_EXCLOTHER | LK_NOWAIT), td, &nvp, 314 newnfs_vncmpf, nfhp); 315 } 316 FREE(nfhp, M_NFSFH); 317 if (error) 318 return (error); 319 if (nvp != NULL) { 320 *npp = VTONFS(nvp); 321 return (0); 322 } 323 return (EINVAL); 324} 325 326/* 327 * Load the attribute cache (that lives in the nfsnode entry) with 328 * the attributes of the second argument and 329 * Iff vaper not NULL 330 * copy the attributes to *vaper 331 * Similar to nfs_loadattrcache(), except the attributes are passed in 332 * instead of being parsed out of the mbuf list. 333 */ 334int 335nfscl_loadattrcache(struct vnode **vpp, struct nfsvattr *nap, void *nvaper, 336 void *stuff, int writeattr, int dontshrink) 337{ 338 struct vnode *vp = *vpp; 339 struct vattr *vap, *nvap = &nap->na_vattr, *vaper = nvaper; 340 struct nfsnode *np; 341 struct nfsmount *nmp; 342 struct timespec mtime_save; 343 struct thread *td = curthread; 344 345 /* 346 * If v_type == VNON it is a new node, so fill in the v_type, 347 * n_mtime fields. Check to see if it represents a special 348 * device, and if so, check for a possible alias. Once the 349 * correct vnode has been obtained, fill in the rest of the 350 * information. 351 */ 352 np = VTONFS(vp); 353 NFSLOCKNODE(np); 354 if (vp->v_type != nvap->va_type) { 355 vp->v_type = nvap->va_type; 356 if (vp->v_type == VFIFO) 357 vp->v_op = &newnfs_fifoops; 358 np->n_mtime = nvap->va_mtime; 359 } 360 nmp = VFSTONFS(vp->v_mount); 361 vap = &np->n_vattr.na_vattr; 362 mtime_save = vap->va_mtime; 363 if (writeattr) { 364 np->n_vattr.na_filerev = nap->na_filerev; 365 np->n_vattr.na_size = nap->na_size; 366 np->n_vattr.na_mtime = nap->na_mtime; 367 np->n_vattr.na_ctime = nap->na_ctime; 368 np->n_vattr.na_fsid = nap->na_fsid; 369 } else { 370 NFSBCOPY((caddr_t)nap, (caddr_t)&np->n_vattr, 371 sizeof (struct nfsvattr)); 372 } 373 374 /* 375 * For NFSv4, if the node's fsid is not equal to the mount point's 376 * fsid, return the low order 32bits of the node's fsid. This 377 * allows getcwd(3) to work. There is a chance that the fsid might 378 * be the same as a local fs, but since this is in an NFS mount 379 * point, I don't think that will cause any problems? 380 */ 381 if ((nmp->nm_flag & (NFSMNT_NFSV4 | NFSMNT_HASSETFSID)) == 382 (NFSMNT_NFSV4 | NFSMNT_HASSETFSID) && 383 (nmp->nm_fsid[0] != np->n_vattr.na_filesid[0] || 384 nmp->nm_fsid[1] != np->n_vattr.na_filesid[1])) 385 vap->va_fsid = np->n_vattr.na_filesid[0]; 386 else 387 vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 388 np->n_attrstamp = time_second; 389 /* Timestamp the NFS otw getattr fetch */ 390 if (td->td_proc) { 391 np->n_ac_ts_tid = td->td_tid; 392 np->n_ac_ts_pid = td->td_proc->p_pid; 393 np->n_ac_ts_syscalls = td->td_syscalls; 394 } else 395 bzero(&np->n_ac_ts, sizeof(struct nfs_attrcache_timestamp)); 396 397 if (vap->va_size != np->n_size) { 398 if (vap->va_type == VREG) { 399 if (dontshrink && vap->va_size < np->n_size) { 400 /* 401 * We've been told not to shrink the file; 402 * zero np->n_attrstamp to indicate that 403 * the attributes are stale. 404 */ 405 vap->va_size = np->n_size; 406 np->n_attrstamp = 0; 407 } else if (np->n_flag & NMODIFIED) { 408 /* 409 * We've modified the file: Use the larger 410 * of our size, and the server's size. 411 */ 412 if (vap->va_size < np->n_size) { 413 vap->va_size = np->n_size; 414 } else { 415 np->n_size = vap->va_size; 416 np->n_flag |= NSIZECHANGED; 417 } 418 } else { 419 np->n_size = vap->va_size; 420 np->n_flag |= NSIZECHANGED; 421 } 422 vnode_pager_setsize(vp, np->n_size); 423 } else { 424 np->n_size = vap->va_size; 425 } 426 } 427 /* 428 * The following checks are added to prevent a race between (say) 429 * a READDIR+ and a WRITE. 430 * READDIR+, WRITE requests sent out. 431 * READDIR+ resp, WRITE resp received on client. 432 * However, the WRITE resp was handled before the READDIR+ resp 433 * causing the post op attrs from the write to be loaded first 434 * and the attrs from the READDIR+ to be loaded later. If this 435 * happens, we have stale attrs loaded into the attrcache. 436 * We detect this by for the mtime moving back. We invalidate the 437 * attrcache when this happens. 438 */ 439 if (timespeccmp(&mtime_save, &vap->va_mtime, >)) 440 /* Size changed or mtime went backwards */ 441 np->n_attrstamp = 0; 442 if (vaper != NULL) { 443 NFSBCOPY((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 444 if (np->n_flag & NCHG) { 445 if (np->n_flag & NACC) 446 vaper->va_atime = np->n_atim; 447 if (np->n_flag & NUPD) 448 vaper->va_mtime = np->n_mtim; 449 } 450 } 451 NFSUNLOCKNODE(np); 452 return (0); 453} 454 455/* 456 * Fill in the client id name. For these bytes: 457 * 1 - they must be unique 458 * 2 - they should be persistent across client reboots 459 * 1 is more critical than 2 460 * Use the mount point's unique id plus either the uuid or, if that 461 * isn't set, random junk. 462 */ 463void 464nfscl_fillclid(u_int64_t clval, char *uuid, u_int8_t *cp, u_int16_t idlen) 465{ 466 int uuidlen; 467 468 /* 469 * First, put in the 64bit mount point identifier. 470 */ 471 if (idlen >= sizeof (u_int64_t)) { 472 NFSBCOPY((caddr_t)&clval, cp, sizeof (u_int64_t)); 473 cp += sizeof (u_int64_t); 474 idlen -= sizeof (u_int64_t); 475 } 476 477 /* 478 * If uuid is non-zero length, use it. 479 */ 480 uuidlen = strlen(uuid); 481 if (uuidlen > 0 && idlen >= uuidlen) { 482 NFSBCOPY(uuid, cp, uuidlen); 483 cp += uuidlen; 484 idlen -= uuidlen; 485 } 486 487 /* 488 * This only normally happens if the uuid isn't set. 489 */ 490 while (idlen > 0) { 491 *cp++ = (u_int8_t)(arc4random() % 256); 492 idlen--; 493 } 494} 495 496/* 497 * Fill in a lock owner name. For now, pid + the process's creation time. 498 */ 499void 500nfscl_filllockowner(struct thread *td, u_int8_t *cp) 501{ 502 union { 503 u_int32_t lval; 504 u_int8_t cval[4]; 505 } tl; 506 struct proc *p; 507 508if (td == NULL) { 509 printf("NULL td\n"); 510 bzero(cp, 12); 511 return; 512} 513 p = td->td_proc; 514if (p == NULL) { 515 printf("NULL pid\n"); 516 bzero(cp, 12); 517 return; 518} 519 tl.lval = p->p_pid; 520 *cp++ = tl.cval[0]; 521 *cp++ = tl.cval[1]; 522 *cp++ = tl.cval[2]; 523 *cp++ = tl.cval[3]; 524if (p->p_stats == NULL) { 525 printf("pstats null\n"); 526 bzero(cp, 8); 527 return; 528} 529 tl.lval = p->p_stats->p_start.tv_sec; 530 *cp++ = tl.cval[0]; 531 *cp++ = tl.cval[1]; 532 *cp++ = tl.cval[2]; 533 *cp++ = tl.cval[3]; 534 tl.lval = p->p_stats->p_start.tv_usec; 535 *cp++ = tl.cval[0]; 536 *cp++ = tl.cval[1]; 537 *cp++ = tl.cval[2]; 538 *cp = tl.cval[3]; 539} 540 541/* 542 * Find the parent process for the thread passed in as an argument. 543 * If none exists, return NULL, otherwise return a thread for the parent. 544 * (Can be any of the threads, since it is only used for td->td_proc.) 545 */ 546NFSPROC_T * 547nfscl_getparent(struct thread *td) 548{ 549 struct proc *p; 550 struct thread *ptd; 551 552 if (td == NULL) 553 return (NULL); 554 p = td->td_proc; 555 if (p->p_pid == 0) 556 return (NULL); 557 p = p->p_pptr; 558 if (p == NULL) 559 return (NULL); 560 ptd = TAILQ_FIRST(&p->p_threads); 561 return (ptd); 562} 563 564/* 565 * Start up the renew kernel thread. 566 */ 567static void 568start_nfscl(void *arg) 569{ 570 struct nfsclclient *clp; 571 struct thread *td; 572 573 clp = (struct nfsclclient *)arg; 574 td = TAILQ_FIRST(&clp->nfsc_renewthread->p_threads); 575 nfscl_renewthread(clp, td); 576 kproc_exit(0); 577} 578 579void 580nfscl_start_renewthread(struct nfsclclient *clp) 581{ 582 583 kproc_create(start_nfscl, (void *)clp, &clp->nfsc_renewthread, 0, 0, 584 "nfscl"); 585} 586 587/* 588 * Handle wcc_data. 589 * For NFSv4, it assumes that nfsv4_wccattr() was used to set up the getattr 590 * as the first Op after PutFH. 591 * (For NFSv4, the postop attributes are after the Op, so they can't be 592 * parsed here. A separate call to nfscl_postop_attr() is required.) 593 */ 594int 595nfscl_wcc_data(struct nfsrv_descript *nd, struct vnode *vp, 596 struct nfsvattr *nap, int *flagp, int *wccflagp, void *stuff) 597{ 598 u_int32_t *tl; 599 struct nfsnode *np = VTONFS(vp); 600 struct nfsvattr nfsva; 601 int error = 0; 602 603 if (wccflagp != NULL) 604 *wccflagp = 0; 605 if (nd->nd_flag & ND_NFSV3) { 606 *flagp = 0; 607 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 608 if (*tl == newnfs_true) { 609 NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 610 if (wccflagp != NULL) { 611 mtx_lock(&np->n_mtx); 612 *wccflagp = (np->n_mtime.tv_sec == 613 fxdr_unsigned(u_int32_t, *(tl + 2)) && 614 np->n_mtime.tv_nsec == 615 fxdr_unsigned(u_int32_t, *(tl + 3))); 616 mtx_unlock(&np->n_mtx); 617 } 618 } 619 error = nfscl_postop_attr(nd, nap, flagp, stuff); 620 } else if ((nd->nd_flag & (ND_NOMOREDATA | ND_NFSV4 | ND_V4WCCATTR)) 621 == (ND_NFSV4 | ND_V4WCCATTR)) { 622 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 623 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 624 NULL, NULL, NULL, NULL, NULL); 625 if (error) 626 return (error); 627 /* 628 * Get rid of Op# and status for next op. 629 */ 630 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 631 if (*++tl) 632 nd->nd_flag |= ND_NOMOREDATA; 633 if (wccflagp != NULL && 634 nfsva.na_vattr.va_mtime.tv_sec != 0) { 635 mtx_lock(&np->n_mtx); 636 *wccflagp = (np->n_mtime.tv_sec == 637 nfsva.na_vattr.va_mtime.tv_sec && 638 np->n_mtime.tv_nsec == 639 nfsva.na_vattr.va_mtime.tv_sec); 640 mtx_unlock(&np->n_mtx); 641 } 642 } 643nfsmout: 644 return (error); 645} 646 647/* 648 * Get postop attributes. 649 */ 650int 651nfscl_postop_attr(struct nfsrv_descript *nd, struct nfsvattr *nap, int *retp, 652 void *stuff) 653{ 654 u_int32_t *tl; 655 int error = 0; 656 657 *retp = 0; 658 if (nd->nd_flag & ND_NOMOREDATA) 659 return (error); 660 if (nd->nd_flag & ND_NFSV3) { 661 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 662 *retp = fxdr_unsigned(int, *tl); 663 } else if (nd->nd_flag & ND_NFSV4) { 664 /* 665 * For NFSv4, the postop attr are at the end, so no point 666 * in looking if nd_repstat != 0. 667 */ 668 if (!nd->nd_repstat) { 669 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 670 if (*(tl + 1)) 671 /* should never happen since nd_repstat != 0 */ 672 nd->nd_flag |= ND_NOMOREDATA; 673 else 674 *retp = 1; 675 } 676 } else if (!nd->nd_repstat) { 677 /* For NFSv2, the attributes are here iff nd_repstat == 0 */ 678 *retp = 1; 679 } 680 if (*retp) { 681 error = nfsm_loadattr(nd, nap); 682 if (error) 683 *retp = 0; 684 } 685nfsmout: 686 return (error); 687} 688 689/* 690 * Fill in the setable attributes. The full argument indicates whether 691 * to fill in them all or just mode and time. 692 */ 693void 694nfscl_fillsattr(struct nfsrv_descript *nd, struct vattr *vap, 695 struct vnode *vp, int flags, u_int32_t rdev) 696{ 697 u_int32_t *tl; 698 struct nfsv2_sattr *sp; 699 nfsattrbit_t attrbits; 700 struct timeval curtime; 701 702 switch (nd->nd_flag & (ND_NFSV2 | ND_NFSV3 | ND_NFSV4)) { 703 case ND_NFSV2: 704 NFSM_BUILD(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 705 if (vap->va_mode == (mode_t)VNOVAL) 706 sp->sa_mode = newnfs_xdrneg1; 707 else 708 sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 709 if (vap->va_uid == (uid_t)VNOVAL) 710 sp->sa_uid = newnfs_xdrneg1; 711 else 712 sp->sa_uid = txdr_unsigned(vap->va_uid); 713 if (vap->va_gid == (gid_t)VNOVAL) 714 sp->sa_gid = newnfs_xdrneg1; 715 else 716 sp->sa_gid = txdr_unsigned(vap->va_gid); 717 if (flags & NFSSATTR_SIZE0) 718 sp->sa_size = 0; 719 else if (flags & NFSSATTR_SIZENEG1) 720 sp->sa_size = newnfs_xdrneg1; 721 else if (flags & NFSSATTR_SIZERDEV) 722 sp->sa_size = txdr_unsigned(rdev); 723 else 724 sp->sa_size = txdr_unsigned(vap->va_size); 725 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 726 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 727 break; 728 case ND_NFSV3: 729 getmicrotime(&curtime); 730 if (vap->va_mode != (mode_t)VNOVAL) { 731 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 732 *tl++ = newnfs_true; 733 *tl = txdr_unsigned(vap->va_mode); 734 } else { 735 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 736 *tl = newnfs_false; 737 } 738 if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL) { 739 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 740 *tl++ = newnfs_true; 741 *tl = txdr_unsigned(vap->va_uid); 742 } else { 743 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 744 *tl = newnfs_false; 745 } 746 if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL) { 747 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 748 *tl++ = newnfs_true; 749 *tl = txdr_unsigned(vap->va_gid); 750 } else { 751 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 752 *tl = newnfs_false; 753 } 754 if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL) { 755 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 756 *tl++ = newnfs_true; 757 txdr_hyper(vap->va_size, tl); 758 } else { 759 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 760 *tl = newnfs_false; 761 } 762 if (vap->va_atime.tv_sec != VNOVAL) { 763 if (vap->va_atime.tv_sec != curtime.tv_sec) { 764 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 765 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); 766 txdr_nfsv3time(&vap->va_atime, tl); 767 } else { 768 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 769 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); 770 } 771 } else { 772 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 773 *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); 774 } 775 if (vap->va_mtime.tv_sec != VNOVAL) { 776 if (vap->va_mtime.tv_sec != curtime.tv_sec) { 777 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 778 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); 779 txdr_nfsv3time(&vap->va_mtime, tl); 780 } else { 781 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 782 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); 783 } 784 } else { 785 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 786 *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); 787 } 788 break; 789 case ND_NFSV4: 790 NFSZERO_ATTRBIT(&attrbits); 791 if (vap->va_mode != (mode_t)VNOVAL) 792 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_MODE); 793 if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL) 794 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 795 if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL) 796 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP); 797 if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL) 798 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_SIZE); 799 if (vap->va_atime.tv_sec != VNOVAL) 800 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET); 801 if (vap->va_mtime.tv_sec != VNOVAL) 802 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET); 803 (void) nfsv4_fillattr(nd, vp, NULL, vap, NULL, 0, &attrbits, 804 NULL, NULL, 0, 0); 805 break; 806 }; 807} 808 809/* 810 * nfscl_request() - mostly a wrapper for newnfs_request(). 811 */ 812int 813nfscl_request(struct nfsrv_descript *nd, struct vnode *vp, NFSPROC_T *p, 814 struct ucred *cred, void *stuff) 815{ 816 int ret, vers; 817 struct nfsmount *nmp; 818 819 nmp = VFSTONFS(vp->v_mount); 820 if (nd->nd_flag & ND_NFSV4) 821 vers = NFS_VER4; 822 else if (nd->nd_flag & ND_NFSV3) 823 vers = NFS_VER3; 824 else 825 vers = NFS_VER2; 826 ret = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 827 NFS_PROG, vers, NULL, 1, NULL); 828 return (ret); 829} 830 831/* 832 * fill in this bsden's variant of statfs using nfsstatfs. 833 */ 834void 835nfscl_loadsbinfo(struct nfsmount *nmp, struct nfsstatfs *sfp, void *statfs) 836{ 837 struct statfs *sbp = (struct statfs *)statfs; 838 nfsquad_t tquad; 839 840 if (nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) { 841 sbp->f_bsize = NFS_FABLKSIZE; 842 tquad.qval = sfp->sf_tbytes; 843 sbp->f_blocks = (long)(tquad.qval / ((u_quad_t)NFS_FABLKSIZE)); 844 tquad.qval = sfp->sf_fbytes; 845 sbp->f_bfree = (long)(tquad.qval / ((u_quad_t)NFS_FABLKSIZE)); 846 tquad.qval = sfp->sf_abytes; 847 sbp->f_bavail = (long)(tquad.qval / ((u_quad_t)NFS_FABLKSIZE)); 848 tquad.qval = sfp->sf_tfiles; 849 sbp->f_files = (tquad.lval[0] & 0x7fffffff); 850 tquad.qval = sfp->sf_ffiles; 851 sbp->f_ffree = (tquad.lval[0] & 0x7fffffff); 852 } else if ((nmp->nm_flag & NFSMNT_NFSV4) == 0) { 853 sbp->f_bsize = (int32_t)sfp->sf_bsize; 854 sbp->f_blocks = (int32_t)sfp->sf_blocks; 855 sbp->f_bfree = (int32_t)sfp->sf_bfree; 856 sbp->f_bavail = (int32_t)sfp->sf_bavail; 857 sbp->f_files = 0; 858 sbp->f_ffree = 0; 859 } 860} 861 862/* 863 * Use the fsinfo stuff to update the mount point. 864 */ 865void 866nfscl_loadfsinfo(struct nfsmount *nmp, struct nfsfsinfo *fsp) 867{ 868 869 if ((nmp->nm_wsize == 0 || fsp->fs_wtpref < nmp->nm_wsize) && 870 fsp->fs_wtpref >= NFS_FABLKSIZE) 871 nmp->nm_wsize = (fsp->fs_wtpref + NFS_FABLKSIZE - 1) & 872 ~(NFS_FABLKSIZE - 1); 873 if (fsp->fs_wtmax < nmp->nm_wsize && fsp->fs_wtmax > 0) { 874 nmp->nm_wsize = fsp->fs_wtmax & ~(NFS_FABLKSIZE - 1); 875 if (nmp->nm_wsize == 0) 876 nmp->nm_wsize = fsp->fs_wtmax; 877 } 878 if (nmp->nm_wsize < NFS_FABLKSIZE) 879 nmp->nm_wsize = NFS_FABLKSIZE; 880 if ((nmp->nm_rsize == 0 || fsp->fs_rtpref < nmp->nm_rsize) && 881 fsp->fs_rtpref >= NFS_FABLKSIZE) 882 nmp->nm_rsize = (fsp->fs_rtpref + NFS_FABLKSIZE - 1) & 883 ~(NFS_FABLKSIZE - 1); 884 if (fsp->fs_rtmax < nmp->nm_rsize && fsp->fs_rtmax > 0) { 885 nmp->nm_rsize = fsp->fs_rtmax & ~(NFS_FABLKSIZE - 1); 886 if (nmp->nm_rsize == 0) 887 nmp->nm_rsize = fsp->fs_rtmax; 888 } 889 if (nmp->nm_rsize < NFS_FABLKSIZE) 890 nmp->nm_rsize = NFS_FABLKSIZE; 891 if ((nmp->nm_readdirsize == 0 || fsp->fs_dtpref < nmp->nm_readdirsize) 892 && fsp->fs_dtpref >= NFS_DIRBLKSIZ) 893 nmp->nm_readdirsize = (fsp->fs_dtpref + NFS_DIRBLKSIZ - 1) & 894 ~(NFS_DIRBLKSIZ - 1); 895 if (fsp->fs_rtmax < nmp->nm_readdirsize && fsp->fs_rtmax > 0) { 896 nmp->nm_readdirsize = fsp->fs_rtmax & ~(NFS_DIRBLKSIZ - 1); 897 if (nmp->nm_readdirsize == 0) 898 nmp->nm_readdirsize = fsp->fs_rtmax; 899 } 900 if (nmp->nm_readdirsize < NFS_DIRBLKSIZ) 901 nmp->nm_readdirsize = NFS_DIRBLKSIZ; 902 if (fsp->fs_maxfilesize > 0 && 903 fsp->fs_maxfilesize < nmp->nm_maxfilesize) 904 nmp->nm_maxfilesize = fsp->fs_maxfilesize; 905 nmp->nm_mountp->mnt_stat.f_iosize = newnfs_iosize(nmp); 906 nmp->nm_state |= NFSSTA_GOTFSINFO; 907} 908 909/* 910 * Get a pointer to my IP addrress and return it. 911 * Return NULL if you can't find one. 912 */ 913u_int8_t * 914nfscl_getmyip(struct nfsmount *nmp, int *isinet6p) 915{ 916 struct sockaddr_in sad, *sin; 917 struct rtentry *rt; 918 u_int8_t *retp = NULL; 919 static struct in_addr laddr; 920 921 *isinet6p = 0; 922 /* 923 * Loop up a route for the destination address. 924 */ 925 if (nmp->nm_nam->sa_family == AF_INET) { 926 bzero(&sad, sizeof (sad)); 927 sin = (struct sockaddr_in *)nmp->nm_nam; 928 sad.sin_family = AF_INET; 929 sad.sin_len = sizeof (struct sockaddr_in); 930 sad.sin_addr.s_addr = sin->sin_addr.s_addr; 931 rt = rtalloc1((struct sockaddr *)&sad, 0, 0UL); 932 if (rt != NULL) { 933 if (rt->rt_ifp != NULL && 934 rt->rt_ifa != NULL && 935 ((rt->rt_ifp->if_flags & IFF_LOOPBACK) == 0) && 936 rt->rt_ifa->ifa_addr->sa_family == AF_INET) { 937 sin = (struct sockaddr_in *) 938 rt->rt_ifa->ifa_addr; 939 laddr.s_addr = sin->sin_addr.s_addr; 940 retp = (u_int8_t *)&laddr; 941 } 942 RTFREE_LOCKED(rt); 943 } 944#ifdef INET6 945 } else if (nmp->nm_nam->sa_family == AF_INET6) { 946 struct sockaddr_in6 sad6, *sin6; 947 static struct in6_addr laddr6; 948 949 bzero(&sad6, sizeof (sad6)); 950 sin6 = (struct sockaddr_in6 *)nmp->nm_nam; 951 sad6.sin6_family = AF_INET6; 952 sad6.sin6_len = sizeof (struct sockaddr_in6); 953 sad6.sin6_addr = sin6->sin6_addr; 954 rt = rtalloc1((struct sockaddr *)&sad6, 0, 0UL); 955 if (rt != NULL) { 956 if (rt->rt_ifp != NULL && 957 rt->rt_ifa != NULL && 958 ((rt->rt_ifp->if_flags & IFF_LOOPBACK) == 0) && 959 rt->rt_ifa->ifa_addr->sa_family == AF_INET6) { 960 sin6 = (struct sockaddr_in6 *) 961 rt->rt_ifa->ifa_addr; 962 laddr6 = sin6->sin6_addr; 963 retp = (u_int8_t *)&laddr6; 964 *isinet6p = 1; 965 } 966 RTFREE_LOCKED(rt); 967 } 968#endif 969 } 970 return (retp); 971} 972 973/* 974 * Copy NFS uid, gids from the cred structure. 975 */ 976void 977newnfs_copyincred(struct ucred *cr, struct nfscred *nfscr) 978{
| 36 37/* 38 * generally, I don't like #includes inside .h files, but it seems to 39 * be the easiest way to handle the port. 40 */ 41#include <fs/nfs/nfsport.h> 42#include <netinet/if_ether.h> 43#include <net/if_types.h> 44 45extern u_int32_t newnfs_true, newnfs_false, newnfs_xdrneg1; 46extern struct vop_vector newnfs_vnodeops; 47extern struct vop_vector newnfs_fifoops; 48extern uma_zone_t newnfsnode_zone; 49extern struct buf_ops buf_ops_newnfs; 50extern int ncl_pbuf_freecnt; 51extern short nfsv4_cbport; 52extern int nfscl_enablecallb; 53extern int nfs_numnfscbd; 54extern int nfscl_inited; 55struct mtx nfs_clstate_mutex; 56struct mtx ncl_iod_mutex; 57NFSDLOCKMUTEX; 58 59extern void (*ncl_call_invalcaches)(struct vnode *); 60 61/* 62 * Comparison function for vfs_hash functions. 63 */ 64int 65newnfs_vncmpf(struct vnode *vp, void *arg) 66{ 67 struct nfsfh *nfhp = (struct nfsfh *)arg; 68 struct nfsnode *np = VTONFS(vp); 69 70 if (np->n_fhp->nfh_len != nfhp->nfh_len || 71 NFSBCMP(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len)) 72 return (1); 73 return (0); 74} 75 76/* 77 * Look up a vnode/nfsnode by file handle. 78 * Callers must check for mount points!! 79 * In all cases, a pointer to a 80 * nfsnode structure is returned. 81 * This variant takes a "struct nfsfh *" as second argument and uses 82 * that structure up, either by hanging off the nfsnode or FREEing it. 83 */ 84int 85nfscl_nget(struct mount *mntp, struct vnode *dvp, struct nfsfh *nfhp, 86 struct componentname *cnp, struct thread *td, struct nfsnode **npp, 87 void *stuff) 88{ 89 struct nfsnode *np, *dnp; 90 struct vnode *vp, *nvp; 91 struct nfsv4node *newd, *oldd; 92 int error; 93 u_int hash; 94 struct nfsmount *nmp; 95 96 nmp = VFSTONFS(mntp); 97 dnp = VTONFS(dvp); 98 *npp = NULL; 99 100 hash = fnv_32_buf(nfhp->nfh_fh, nfhp->nfh_len, FNV1_32_INIT); 101 102 error = vfs_hash_get(mntp, hash, LK_EXCLUSIVE, 103 td, &nvp, newnfs_vncmpf, nfhp); 104 if (error == 0 && nvp != NULL) { 105 /* 106 * I believe there is a slight chance that vgonel() could 107 * get called on this vnode between when vn_lock() drops 108 * the VI_LOCK() and vget() acquires it again, so that it 109 * hasn't yet had v_usecount incremented. If this were to 110 * happen, the VI_DOOMED flag would be set, so check for 111 * that here. Since we now have the v_usecount incremented, 112 * we should be ok until we vrele() it, if the VI_DOOMED 113 * flag isn't set now. 114 */ 115 VI_LOCK(nvp); 116 if ((nvp->v_iflag & VI_DOOMED)) { 117 VI_UNLOCK(nvp); 118 vrele(nvp); 119 error = ENOENT; 120 } else { 121 VI_UNLOCK(nvp); 122 } 123 } 124 if (error) { 125 FREE((caddr_t)nfhp, M_NFSFH); 126 return (error); 127 } 128 if (nvp != NULL) { 129 np = VTONFS(nvp); 130 /* 131 * For NFSv4, check to see if it is the same name and 132 * replace the name, if it is different. 133 */ 134 oldd = newd = NULL; 135 if ((nmp->nm_flag & NFSMNT_NFSV4) && np->n_v4 != NULL && 136 nvp->v_type == VREG && 137 (np->n_v4->n4_namelen != cnp->cn_namelen || 138 NFSBCMP(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 139 cnp->cn_namelen) || 140 dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen || 141 NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 142 dnp->n_fhp->nfh_len))) { 143 MALLOC(newd, struct nfsv4node *, 144 sizeof (struct nfsv4node) + dnp->n_fhp->nfh_len + 145 + cnp->cn_namelen - 1, M_NFSV4NODE, M_WAITOK); 146 NFSLOCKNODE(np); 147 if (newd != NULL && np->n_v4 != NULL && nvp->v_type == VREG 148 && (np->n_v4->n4_namelen != cnp->cn_namelen || 149 NFSBCMP(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 150 cnp->cn_namelen) || 151 dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen || 152 NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 153 dnp->n_fhp->nfh_len))) { 154 oldd = np->n_v4; 155 np->n_v4 = newd; 156 newd = NULL; 157 np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len; 158 np->n_v4->n4_namelen = cnp->cn_namelen; 159 NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 160 dnp->n_fhp->nfh_len); 161 NFSBCOPY(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 162 cnp->cn_namelen); 163 } 164 NFSUNLOCKNODE(np); 165 } 166 if (newd != NULL) 167 FREE((caddr_t)newd, M_NFSV4NODE); 168 if (oldd != NULL) 169 FREE((caddr_t)oldd, M_NFSV4NODE); 170 *npp = np; 171 FREE((caddr_t)nfhp, M_NFSFH); 172 return (0); 173 } 174 175 /* 176 * Allocate before getnewvnode since doing so afterward 177 * might cause a bogus v_data pointer to get dereferenced 178 * elsewhere if zalloc should block. 179 */ 180 np = uma_zalloc(newnfsnode_zone, M_WAITOK | M_ZERO); 181 182 error = getnewvnode("newnfs", mntp, &newnfs_vnodeops, &nvp); 183 if (error) { 184 uma_zfree(newnfsnode_zone, np); 185 FREE((caddr_t)nfhp, M_NFSFH); 186 return (error); 187 } 188 vp = nvp; 189 vp->v_bufobj.bo_ops = &buf_ops_newnfs; 190 vp->v_data = np; 191 np->n_vnode = vp; 192 /* 193 * Initialize the mutex even if the vnode is going to be a loser. 194 * This simplifies the logic in reclaim, which can then unconditionally 195 * destroy the mutex (in the case of the loser, or if hash_insert 196 * happened to return an error no special casing is needed). 197 */ 198 mtx_init(&np->n_mtx, "NEWNFSnode lock", NULL, MTX_DEF | MTX_DUPOK); 199 200 /* 201 * Are we getting the root? If so, make sure the vnode flags 202 * are correct 203 */ 204 if ((nfhp->nfh_len == nmp->nm_fhsize) && 205 !bcmp(nfhp->nfh_fh, nmp->nm_fh, nfhp->nfh_len)) { 206 if (vp->v_type == VNON) 207 vp->v_type = VDIR; 208 vp->v_vflag |= VV_ROOT; 209 } 210 211 np->n_fhp = nfhp; 212 /* 213 * For NFSv4, we have to attach the directory file handle and 214 * file name, so that Open Ops can be done later. 215 */ 216 if (nmp->nm_flag & NFSMNT_NFSV4) { 217 MALLOC(np->n_v4, struct nfsv4node *, sizeof (struct nfsv4node) 218 + dnp->n_fhp->nfh_len + cnp->cn_namelen - 1, M_NFSV4NODE, 219 M_WAITOK); 220 np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len; 221 np->n_v4->n4_namelen = cnp->cn_namelen; 222 NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data, 223 dnp->n_fhp->nfh_len); 224 NFSBCOPY(cnp->cn_nameptr, NFS4NODENAME(np->n_v4), 225 cnp->cn_namelen); 226 } else { 227 np->n_v4 = NULL; 228 } 229 230 /* 231 * NFS supports recursive and shared locking. 232 */ 233 VN_LOCK_AREC(vp); 234 VN_LOCK_ASHARE(vp); 235 lockmgr(vp->v_vnlock, LK_EXCLUSIVE, NULL); 236 error = insmntque(vp, mntp); 237 if (error != 0) { 238 *npp = NULL; 239 mtx_destroy(&np->n_mtx); 240 FREE((caddr_t)nfhp, M_NFSFH); 241 if (np->n_v4 != NULL) 242 FREE((caddr_t)np->n_v4, M_NFSV4NODE); 243 uma_zfree(newnfsnode_zone, np); 244 return (error); 245 } 246 error = vfs_hash_insert(vp, hash, LK_EXCLUSIVE, 247 td, &nvp, newnfs_vncmpf, nfhp); 248 if (error) 249 return (error); 250 if (nvp != NULL) { 251 *npp = VTONFS(nvp); 252 /* vfs_hash_insert() vput()'s the losing vnode */ 253 return (0); 254 } 255 *npp = np; 256 257 return (0); 258} 259 260/* 261 * Anothe variant of nfs_nget(). This one is only used by reopen. It 262 * takes almost the same args as nfs_nget(), but only succeeds if an entry 263 * exists in the cache. (Since files should already be "open" with a 264 * vnode ref cnt on the node when reopen calls this, it should always 265 * succeed.) 266 * Also, don't get a vnode lock, since it may already be locked by some 267 * other process that is handling it. This is ok, since all other threads 268 * on the client are blocked by the nfsc_lock being exclusively held by the 269 * caller of this function. 270 */ 271int 272nfscl_ngetreopen(struct mount *mntp, u_int8_t *fhp, int fhsize, 273 struct thread *td, struct nfsnode **npp) 274{ 275 struct vnode *nvp; 276 u_int hash; 277 struct nfsfh *nfhp; 278 int error; 279 280 *npp = NULL; 281 /* For forced dismounts, just return error. */ 282 if ((mntp->mnt_kern_flag & MNTK_UNMOUNTF)) 283 return (EINTR); 284 MALLOC(nfhp, struct nfsfh *, sizeof (struct nfsfh) + fhsize, 285 M_NFSFH, M_WAITOK); 286 bcopy(fhp, &nfhp->nfh_fh[0], fhsize); 287 nfhp->nfh_len = fhsize; 288 289 hash = fnv_32_buf(fhp, fhsize, FNV1_32_INIT); 290 291 /* 292 * First, try to get the vnode locked, but don't block for the lock. 293 */ 294 error = vfs_hash_get(mntp, hash, (LK_EXCLUSIVE | LK_NOWAIT), td, &nvp, 295 newnfs_vncmpf, nfhp); 296 if (error == 0 && nvp != NULL) { 297 VOP_UNLOCK(nvp, 0); 298 } else if (error == EBUSY) { 299 /* 300 * The LK_EXCLOTHER lock type tells nfs_lock1() to not try 301 * and lock the vnode, but just get a v_usecount on it. 302 * LK_NOWAIT is set so that when vget() returns ENOENT, 303 * vfs_hash_get() fails instead of looping. 304 * If this succeeds, it is safe so long as a vflush() with 305 * FORCECLOSE has not been done. Since the Renew thread is 306 * stopped and the MNTK_UNMOUNTF flag is set before doing 307 * a vflush() with FORCECLOSE, we should be ok here. 308 */ 309 if ((mntp->mnt_kern_flag & MNTK_UNMOUNTF)) 310 error = EINTR; 311 else 312 error = vfs_hash_get(mntp, hash, 313 (LK_EXCLOTHER | LK_NOWAIT), td, &nvp, 314 newnfs_vncmpf, nfhp); 315 } 316 FREE(nfhp, M_NFSFH); 317 if (error) 318 return (error); 319 if (nvp != NULL) { 320 *npp = VTONFS(nvp); 321 return (0); 322 } 323 return (EINVAL); 324} 325 326/* 327 * Load the attribute cache (that lives in the nfsnode entry) with 328 * the attributes of the second argument and 329 * Iff vaper not NULL 330 * copy the attributes to *vaper 331 * Similar to nfs_loadattrcache(), except the attributes are passed in 332 * instead of being parsed out of the mbuf list. 333 */ 334int 335nfscl_loadattrcache(struct vnode **vpp, struct nfsvattr *nap, void *nvaper, 336 void *stuff, int writeattr, int dontshrink) 337{ 338 struct vnode *vp = *vpp; 339 struct vattr *vap, *nvap = &nap->na_vattr, *vaper = nvaper; 340 struct nfsnode *np; 341 struct nfsmount *nmp; 342 struct timespec mtime_save; 343 struct thread *td = curthread; 344 345 /* 346 * If v_type == VNON it is a new node, so fill in the v_type, 347 * n_mtime fields. Check to see if it represents a special 348 * device, and if so, check for a possible alias. Once the 349 * correct vnode has been obtained, fill in the rest of the 350 * information. 351 */ 352 np = VTONFS(vp); 353 NFSLOCKNODE(np); 354 if (vp->v_type != nvap->va_type) { 355 vp->v_type = nvap->va_type; 356 if (vp->v_type == VFIFO) 357 vp->v_op = &newnfs_fifoops; 358 np->n_mtime = nvap->va_mtime; 359 } 360 nmp = VFSTONFS(vp->v_mount); 361 vap = &np->n_vattr.na_vattr; 362 mtime_save = vap->va_mtime; 363 if (writeattr) { 364 np->n_vattr.na_filerev = nap->na_filerev; 365 np->n_vattr.na_size = nap->na_size; 366 np->n_vattr.na_mtime = nap->na_mtime; 367 np->n_vattr.na_ctime = nap->na_ctime; 368 np->n_vattr.na_fsid = nap->na_fsid; 369 } else { 370 NFSBCOPY((caddr_t)nap, (caddr_t)&np->n_vattr, 371 sizeof (struct nfsvattr)); 372 } 373 374 /* 375 * For NFSv4, if the node's fsid is not equal to the mount point's 376 * fsid, return the low order 32bits of the node's fsid. This 377 * allows getcwd(3) to work. There is a chance that the fsid might 378 * be the same as a local fs, but since this is in an NFS mount 379 * point, I don't think that will cause any problems? 380 */ 381 if ((nmp->nm_flag & (NFSMNT_NFSV4 | NFSMNT_HASSETFSID)) == 382 (NFSMNT_NFSV4 | NFSMNT_HASSETFSID) && 383 (nmp->nm_fsid[0] != np->n_vattr.na_filesid[0] || 384 nmp->nm_fsid[1] != np->n_vattr.na_filesid[1])) 385 vap->va_fsid = np->n_vattr.na_filesid[0]; 386 else 387 vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 388 np->n_attrstamp = time_second; 389 /* Timestamp the NFS otw getattr fetch */ 390 if (td->td_proc) { 391 np->n_ac_ts_tid = td->td_tid; 392 np->n_ac_ts_pid = td->td_proc->p_pid; 393 np->n_ac_ts_syscalls = td->td_syscalls; 394 } else 395 bzero(&np->n_ac_ts, sizeof(struct nfs_attrcache_timestamp)); 396 397 if (vap->va_size != np->n_size) { 398 if (vap->va_type == VREG) { 399 if (dontshrink && vap->va_size < np->n_size) { 400 /* 401 * We've been told not to shrink the file; 402 * zero np->n_attrstamp to indicate that 403 * the attributes are stale. 404 */ 405 vap->va_size = np->n_size; 406 np->n_attrstamp = 0; 407 } else if (np->n_flag & NMODIFIED) { 408 /* 409 * We've modified the file: Use the larger 410 * of our size, and the server's size. 411 */ 412 if (vap->va_size < np->n_size) { 413 vap->va_size = np->n_size; 414 } else { 415 np->n_size = vap->va_size; 416 np->n_flag |= NSIZECHANGED; 417 } 418 } else { 419 np->n_size = vap->va_size; 420 np->n_flag |= NSIZECHANGED; 421 } 422 vnode_pager_setsize(vp, np->n_size); 423 } else { 424 np->n_size = vap->va_size; 425 } 426 } 427 /* 428 * The following checks are added to prevent a race between (say) 429 * a READDIR+ and a WRITE. 430 * READDIR+, WRITE requests sent out. 431 * READDIR+ resp, WRITE resp received on client. 432 * However, the WRITE resp was handled before the READDIR+ resp 433 * causing the post op attrs from the write to be loaded first 434 * and the attrs from the READDIR+ to be loaded later. If this 435 * happens, we have stale attrs loaded into the attrcache. 436 * We detect this by for the mtime moving back. We invalidate the 437 * attrcache when this happens. 438 */ 439 if (timespeccmp(&mtime_save, &vap->va_mtime, >)) 440 /* Size changed or mtime went backwards */ 441 np->n_attrstamp = 0; 442 if (vaper != NULL) { 443 NFSBCOPY((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 444 if (np->n_flag & NCHG) { 445 if (np->n_flag & NACC) 446 vaper->va_atime = np->n_atim; 447 if (np->n_flag & NUPD) 448 vaper->va_mtime = np->n_mtim; 449 } 450 } 451 NFSUNLOCKNODE(np); 452 return (0); 453} 454 455/* 456 * Fill in the client id name. For these bytes: 457 * 1 - they must be unique 458 * 2 - they should be persistent across client reboots 459 * 1 is more critical than 2 460 * Use the mount point's unique id plus either the uuid or, if that 461 * isn't set, random junk. 462 */ 463void 464nfscl_fillclid(u_int64_t clval, char *uuid, u_int8_t *cp, u_int16_t idlen) 465{ 466 int uuidlen; 467 468 /* 469 * First, put in the 64bit mount point identifier. 470 */ 471 if (idlen >= sizeof (u_int64_t)) { 472 NFSBCOPY((caddr_t)&clval, cp, sizeof (u_int64_t)); 473 cp += sizeof (u_int64_t); 474 idlen -= sizeof (u_int64_t); 475 } 476 477 /* 478 * If uuid is non-zero length, use it. 479 */ 480 uuidlen = strlen(uuid); 481 if (uuidlen > 0 && idlen >= uuidlen) { 482 NFSBCOPY(uuid, cp, uuidlen); 483 cp += uuidlen; 484 idlen -= uuidlen; 485 } 486 487 /* 488 * This only normally happens if the uuid isn't set. 489 */ 490 while (idlen > 0) { 491 *cp++ = (u_int8_t)(arc4random() % 256); 492 idlen--; 493 } 494} 495 496/* 497 * Fill in a lock owner name. For now, pid + the process's creation time. 498 */ 499void 500nfscl_filllockowner(struct thread *td, u_int8_t *cp) 501{ 502 union { 503 u_int32_t lval; 504 u_int8_t cval[4]; 505 } tl; 506 struct proc *p; 507 508if (td == NULL) { 509 printf("NULL td\n"); 510 bzero(cp, 12); 511 return; 512} 513 p = td->td_proc; 514if (p == NULL) { 515 printf("NULL pid\n"); 516 bzero(cp, 12); 517 return; 518} 519 tl.lval = p->p_pid; 520 *cp++ = tl.cval[0]; 521 *cp++ = tl.cval[1]; 522 *cp++ = tl.cval[2]; 523 *cp++ = tl.cval[3]; 524if (p->p_stats == NULL) { 525 printf("pstats null\n"); 526 bzero(cp, 8); 527 return; 528} 529 tl.lval = p->p_stats->p_start.tv_sec; 530 *cp++ = tl.cval[0]; 531 *cp++ = tl.cval[1]; 532 *cp++ = tl.cval[2]; 533 *cp++ = tl.cval[3]; 534 tl.lval = p->p_stats->p_start.tv_usec; 535 *cp++ = tl.cval[0]; 536 *cp++ = tl.cval[1]; 537 *cp++ = tl.cval[2]; 538 *cp = tl.cval[3]; 539} 540 541/* 542 * Find the parent process for the thread passed in as an argument. 543 * If none exists, return NULL, otherwise return a thread for the parent. 544 * (Can be any of the threads, since it is only used for td->td_proc.) 545 */ 546NFSPROC_T * 547nfscl_getparent(struct thread *td) 548{ 549 struct proc *p; 550 struct thread *ptd; 551 552 if (td == NULL) 553 return (NULL); 554 p = td->td_proc; 555 if (p->p_pid == 0) 556 return (NULL); 557 p = p->p_pptr; 558 if (p == NULL) 559 return (NULL); 560 ptd = TAILQ_FIRST(&p->p_threads); 561 return (ptd); 562} 563 564/* 565 * Start up the renew kernel thread. 566 */ 567static void 568start_nfscl(void *arg) 569{ 570 struct nfsclclient *clp; 571 struct thread *td; 572 573 clp = (struct nfsclclient *)arg; 574 td = TAILQ_FIRST(&clp->nfsc_renewthread->p_threads); 575 nfscl_renewthread(clp, td); 576 kproc_exit(0); 577} 578 579void 580nfscl_start_renewthread(struct nfsclclient *clp) 581{ 582 583 kproc_create(start_nfscl, (void *)clp, &clp->nfsc_renewthread, 0, 0, 584 "nfscl"); 585} 586 587/* 588 * Handle wcc_data. 589 * For NFSv4, it assumes that nfsv4_wccattr() was used to set up the getattr 590 * as the first Op after PutFH. 591 * (For NFSv4, the postop attributes are after the Op, so they can't be 592 * parsed here. A separate call to nfscl_postop_attr() is required.) 593 */ 594int 595nfscl_wcc_data(struct nfsrv_descript *nd, struct vnode *vp, 596 struct nfsvattr *nap, int *flagp, int *wccflagp, void *stuff) 597{ 598 u_int32_t *tl; 599 struct nfsnode *np = VTONFS(vp); 600 struct nfsvattr nfsva; 601 int error = 0; 602 603 if (wccflagp != NULL) 604 *wccflagp = 0; 605 if (nd->nd_flag & ND_NFSV3) { 606 *flagp = 0; 607 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 608 if (*tl == newnfs_true) { 609 NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 610 if (wccflagp != NULL) { 611 mtx_lock(&np->n_mtx); 612 *wccflagp = (np->n_mtime.tv_sec == 613 fxdr_unsigned(u_int32_t, *(tl + 2)) && 614 np->n_mtime.tv_nsec == 615 fxdr_unsigned(u_int32_t, *(tl + 3))); 616 mtx_unlock(&np->n_mtx); 617 } 618 } 619 error = nfscl_postop_attr(nd, nap, flagp, stuff); 620 } else if ((nd->nd_flag & (ND_NOMOREDATA | ND_NFSV4 | ND_V4WCCATTR)) 621 == (ND_NFSV4 | ND_V4WCCATTR)) { 622 error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, 623 NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, 624 NULL, NULL, NULL, NULL, NULL); 625 if (error) 626 return (error); 627 /* 628 * Get rid of Op# and status for next op. 629 */ 630 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 631 if (*++tl) 632 nd->nd_flag |= ND_NOMOREDATA; 633 if (wccflagp != NULL && 634 nfsva.na_vattr.va_mtime.tv_sec != 0) { 635 mtx_lock(&np->n_mtx); 636 *wccflagp = (np->n_mtime.tv_sec == 637 nfsva.na_vattr.va_mtime.tv_sec && 638 np->n_mtime.tv_nsec == 639 nfsva.na_vattr.va_mtime.tv_sec); 640 mtx_unlock(&np->n_mtx); 641 } 642 } 643nfsmout: 644 return (error); 645} 646 647/* 648 * Get postop attributes. 649 */ 650int 651nfscl_postop_attr(struct nfsrv_descript *nd, struct nfsvattr *nap, int *retp, 652 void *stuff) 653{ 654 u_int32_t *tl; 655 int error = 0; 656 657 *retp = 0; 658 if (nd->nd_flag & ND_NOMOREDATA) 659 return (error); 660 if (nd->nd_flag & ND_NFSV3) { 661 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 662 *retp = fxdr_unsigned(int, *tl); 663 } else if (nd->nd_flag & ND_NFSV4) { 664 /* 665 * For NFSv4, the postop attr are at the end, so no point 666 * in looking if nd_repstat != 0. 667 */ 668 if (!nd->nd_repstat) { 669 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 670 if (*(tl + 1)) 671 /* should never happen since nd_repstat != 0 */ 672 nd->nd_flag |= ND_NOMOREDATA; 673 else 674 *retp = 1; 675 } 676 } else if (!nd->nd_repstat) { 677 /* For NFSv2, the attributes are here iff nd_repstat == 0 */ 678 *retp = 1; 679 } 680 if (*retp) { 681 error = nfsm_loadattr(nd, nap); 682 if (error) 683 *retp = 0; 684 } 685nfsmout: 686 return (error); 687} 688 689/* 690 * Fill in the setable attributes. The full argument indicates whether 691 * to fill in them all or just mode and time. 692 */ 693void 694nfscl_fillsattr(struct nfsrv_descript *nd, struct vattr *vap, 695 struct vnode *vp, int flags, u_int32_t rdev) 696{ 697 u_int32_t *tl; 698 struct nfsv2_sattr *sp; 699 nfsattrbit_t attrbits; 700 struct timeval curtime; 701 702 switch (nd->nd_flag & (ND_NFSV2 | ND_NFSV3 | ND_NFSV4)) { 703 case ND_NFSV2: 704 NFSM_BUILD(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 705 if (vap->va_mode == (mode_t)VNOVAL) 706 sp->sa_mode = newnfs_xdrneg1; 707 else 708 sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 709 if (vap->va_uid == (uid_t)VNOVAL) 710 sp->sa_uid = newnfs_xdrneg1; 711 else 712 sp->sa_uid = txdr_unsigned(vap->va_uid); 713 if (vap->va_gid == (gid_t)VNOVAL) 714 sp->sa_gid = newnfs_xdrneg1; 715 else 716 sp->sa_gid = txdr_unsigned(vap->va_gid); 717 if (flags & NFSSATTR_SIZE0) 718 sp->sa_size = 0; 719 else if (flags & NFSSATTR_SIZENEG1) 720 sp->sa_size = newnfs_xdrneg1; 721 else if (flags & NFSSATTR_SIZERDEV) 722 sp->sa_size = txdr_unsigned(rdev); 723 else 724 sp->sa_size = txdr_unsigned(vap->va_size); 725 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 726 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 727 break; 728 case ND_NFSV3: 729 getmicrotime(&curtime); 730 if (vap->va_mode != (mode_t)VNOVAL) { 731 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 732 *tl++ = newnfs_true; 733 *tl = txdr_unsigned(vap->va_mode); 734 } else { 735 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 736 *tl = newnfs_false; 737 } 738 if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL) { 739 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 740 *tl++ = newnfs_true; 741 *tl = txdr_unsigned(vap->va_uid); 742 } else { 743 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 744 *tl = newnfs_false; 745 } 746 if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL) { 747 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 748 *tl++ = newnfs_true; 749 *tl = txdr_unsigned(vap->va_gid); 750 } else { 751 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 752 *tl = newnfs_false; 753 } 754 if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL) { 755 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 756 *tl++ = newnfs_true; 757 txdr_hyper(vap->va_size, tl); 758 } else { 759 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 760 *tl = newnfs_false; 761 } 762 if (vap->va_atime.tv_sec != VNOVAL) { 763 if (vap->va_atime.tv_sec != curtime.tv_sec) { 764 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 765 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); 766 txdr_nfsv3time(&vap->va_atime, tl); 767 } else { 768 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 769 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); 770 } 771 } else { 772 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 773 *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); 774 } 775 if (vap->va_mtime.tv_sec != VNOVAL) { 776 if (vap->va_mtime.tv_sec != curtime.tv_sec) { 777 NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 778 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); 779 txdr_nfsv3time(&vap->va_mtime, tl); 780 } else { 781 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 782 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); 783 } 784 } else { 785 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 786 *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); 787 } 788 break; 789 case ND_NFSV4: 790 NFSZERO_ATTRBIT(&attrbits); 791 if (vap->va_mode != (mode_t)VNOVAL) 792 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_MODE); 793 if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL) 794 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER); 795 if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL) 796 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP); 797 if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL) 798 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_SIZE); 799 if (vap->va_atime.tv_sec != VNOVAL) 800 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET); 801 if (vap->va_mtime.tv_sec != VNOVAL) 802 NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET); 803 (void) nfsv4_fillattr(nd, vp, NULL, vap, NULL, 0, &attrbits, 804 NULL, NULL, 0, 0); 805 break; 806 }; 807} 808 809/* 810 * nfscl_request() - mostly a wrapper for newnfs_request(). 811 */ 812int 813nfscl_request(struct nfsrv_descript *nd, struct vnode *vp, NFSPROC_T *p, 814 struct ucred *cred, void *stuff) 815{ 816 int ret, vers; 817 struct nfsmount *nmp; 818 819 nmp = VFSTONFS(vp->v_mount); 820 if (nd->nd_flag & ND_NFSV4) 821 vers = NFS_VER4; 822 else if (nd->nd_flag & ND_NFSV3) 823 vers = NFS_VER3; 824 else 825 vers = NFS_VER2; 826 ret = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, 827 NFS_PROG, vers, NULL, 1, NULL); 828 return (ret); 829} 830 831/* 832 * fill in this bsden's variant of statfs using nfsstatfs. 833 */ 834void 835nfscl_loadsbinfo(struct nfsmount *nmp, struct nfsstatfs *sfp, void *statfs) 836{ 837 struct statfs *sbp = (struct statfs *)statfs; 838 nfsquad_t tquad; 839 840 if (nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) { 841 sbp->f_bsize = NFS_FABLKSIZE; 842 tquad.qval = sfp->sf_tbytes; 843 sbp->f_blocks = (long)(tquad.qval / ((u_quad_t)NFS_FABLKSIZE)); 844 tquad.qval = sfp->sf_fbytes; 845 sbp->f_bfree = (long)(tquad.qval / ((u_quad_t)NFS_FABLKSIZE)); 846 tquad.qval = sfp->sf_abytes; 847 sbp->f_bavail = (long)(tquad.qval / ((u_quad_t)NFS_FABLKSIZE)); 848 tquad.qval = sfp->sf_tfiles; 849 sbp->f_files = (tquad.lval[0] & 0x7fffffff); 850 tquad.qval = sfp->sf_ffiles; 851 sbp->f_ffree = (tquad.lval[0] & 0x7fffffff); 852 } else if ((nmp->nm_flag & NFSMNT_NFSV4) == 0) { 853 sbp->f_bsize = (int32_t)sfp->sf_bsize; 854 sbp->f_blocks = (int32_t)sfp->sf_blocks; 855 sbp->f_bfree = (int32_t)sfp->sf_bfree; 856 sbp->f_bavail = (int32_t)sfp->sf_bavail; 857 sbp->f_files = 0; 858 sbp->f_ffree = 0; 859 } 860} 861 862/* 863 * Use the fsinfo stuff to update the mount point. 864 */ 865void 866nfscl_loadfsinfo(struct nfsmount *nmp, struct nfsfsinfo *fsp) 867{ 868 869 if ((nmp->nm_wsize == 0 || fsp->fs_wtpref < nmp->nm_wsize) && 870 fsp->fs_wtpref >= NFS_FABLKSIZE) 871 nmp->nm_wsize = (fsp->fs_wtpref + NFS_FABLKSIZE - 1) & 872 ~(NFS_FABLKSIZE - 1); 873 if (fsp->fs_wtmax < nmp->nm_wsize && fsp->fs_wtmax > 0) { 874 nmp->nm_wsize = fsp->fs_wtmax & ~(NFS_FABLKSIZE - 1); 875 if (nmp->nm_wsize == 0) 876 nmp->nm_wsize = fsp->fs_wtmax; 877 } 878 if (nmp->nm_wsize < NFS_FABLKSIZE) 879 nmp->nm_wsize = NFS_FABLKSIZE; 880 if ((nmp->nm_rsize == 0 || fsp->fs_rtpref < nmp->nm_rsize) && 881 fsp->fs_rtpref >= NFS_FABLKSIZE) 882 nmp->nm_rsize = (fsp->fs_rtpref + NFS_FABLKSIZE - 1) & 883 ~(NFS_FABLKSIZE - 1); 884 if (fsp->fs_rtmax < nmp->nm_rsize && fsp->fs_rtmax > 0) { 885 nmp->nm_rsize = fsp->fs_rtmax & ~(NFS_FABLKSIZE - 1); 886 if (nmp->nm_rsize == 0) 887 nmp->nm_rsize = fsp->fs_rtmax; 888 } 889 if (nmp->nm_rsize < NFS_FABLKSIZE) 890 nmp->nm_rsize = NFS_FABLKSIZE; 891 if ((nmp->nm_readdirsize == 0 || fsp->fs_dtpref < nmp->nm_readdirsize) 892 && fsp->fs_dtpref >= NFS_DIRBLKSIZ) 893 nmp->nm_readdirsize = (fsp->fs_dtpref + NFS_DIRBLKSIZ - 1) & 894 ~(NFS_DIRBLKSIZ - 1); 895 if (fsp->fs_rtmax < nmp->nm_readdirsize && fsp->fs_rtmax > 0) { 896 nmp->nm_readdirsize = fsp->fs_rtmax & ~(NFS_DIRBLKSIZ - 1); 897 if (nmp->nm_readdirsize == 0) 898 nmp->nm_readdirsize = fsp->fs_rtmax; 899 } 900 if (nmp->nm_readdirsize < NFS_DIRBLKSIZ) 901 nmp->nm_readdirsize = NFS_DIRBLKSIZ; 902 if (fsp->fs_maxfilesize > 0 && 903 fsp->fs_maxfilesize < nmp->nm_maxfilesize) 904 nmp->nm_maxfilesize = fsp->fs_maxfilesize; 905 nmp->nm_mountp->mnt_stat.f_iosize = newnfs_iosize(nmp); 906 nmp->nm_state |= NFSSTA_GOTFSINFO; 907} 908 909/* 910 * Get a pointer to my IP addrress and return it. 911 * Return NULL if you can't find one. 912 */ 913u_int8_t * 914nfscl_getmyip(struct nfsmount *nmp, int *isinet6p) 915{ 916 struct sockaddr_in sad, *sin; 917 struct rtentry *rt; 918 u_int8_t *retp = NULL; 919 static struct in_addr laddr; 920 921 *isinet6p = 0; 922 /* 923 * Loop up a route for the destination address. 924 */ 925 if (nmp->nm_nam->sa_family == AF_INET) { 926 bzero(&sad, sizeof (sad)); 927 sin = (struct sockaddr_in *)nmp->nm_nam; 928 sad.sin_family = AF_INET; 929 sad.sin_len = sizeof (struct sockaddr_in); 930 sad.sin_addr.s_addr = sin->sin_addr.s_addr; 931 rt = rtalloc1((struct sockaddr *)&sad, 0, 0UL); 932 if (rt != NULL) { 933 if (rt->rt_ifp != NULL && 934 rt->rt_ifa != NULL && 935 ((rt->rt_ifp->if_flags & IFF_LOOPBACK) == 0) && 936 rt->rt_ifa->ifa_addr->sa_family == AF_INET) { 937 sin = (struct sockaddr_in *) 938 rt->rt_ifa->ifa_addr; 939 laddr.s_addr = sin->sin_addr.s_addr; 940 retp = (u_int8_t *)&laddr; 941 } 942 RTFREE_LOCKED(rt); 943 } 944#ifdef INET6 945 } else if (nmp->nm_nam->sa_family == AF_INET6) { 946 struct sockaddr_in6 sad6, *sin6; 947 static struct in6_addr laddr6; 948 949 bzero(&sad6, sizeof (sad6)); 950 sin6 = (struct sockaddr_in6 *)nmp->nm_nam; 951 sad6.sin6_family = AF_INET6; 952 sad6.sin6_len = sizeof (struct sockaddr_in6); 953 sad6.sin6_addr = sin6->sin6_addr; 954 rt = rtalloc1((struct sockaddr *)&sad6, 0, 0UL); 955 if (rt != NULL) { 956 if (rt->rt_ifp != NULL && 957 rt->rt_ifa != NULL && 958 ((rt->rt_ifp->if_flags & IFF_LOOPBACK) == 0) && 959 rt->rt_ifa->ifa_addr->sa_family == AF_INET6) { 960 sin6 = (struct sockaddr_in6 *) 961 rt->rt_ifa->ifa_addr; 962 laddr6 = sin6->sin6_addr; 963 retp = (u_int8_t *)&laddr6; 964 *isinet6p = 1; 965 } 966 RTFREE_LOCKED(rt); 967 } 968#endif 969 } 970 return (retp); 971} 972 973/* 974 * Copy NFS uid, gids from the cred structure. 975 */ 976void 977newnfs_copyincred(struct ucred *cr, struct nfscred *nfscr) 978{
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