1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * 5 * Copyright (c) 1999-2001, Vitaly V Belekhov 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/param.h> 32 #include <sys/eventhandler.h> 33 #include <sys/systm.h> 34 #include <sys/errno.h> 35 #include <sys/kernel.h> 36 #include <sys/malloc.h> 37 #include <sys/mbuf.h> 38 #include <sys/errno.h> 39 #include <sys/proc.h> 40 #include <sys/sockio.h> 41 #include <sys/socket.h> 42 #include <sys/syslog.h> 43 44 #include <net/if.h> 45 #include <net/if_var.h> 46 #include <net/if_media.h> 47 #include <net/if_private.h> 48 #include <net/if_types.h> 49 #include <net/netisr.h> 50 #include <net/route.h> 51 #include <net/vnet.h> 52 53 #include <netgraph/ng_message.h> 54 #include <netgraph/netgraph.h> 55 #include <netgraph/ng_parse.h> 56 #include <netgraph/ng_eiface.h> 57 58 #include <net/bpf.h> 59 #include <net/ethernet.h> 60 #include <net/if_arp.h> 61 62 static const struct ng_cmdlist ng_eiface_cmdlist[] = { 63 { 64 NGM_EIFACE_COOKIE, 65 NGM_EIFACE_GET_IFNAME, 66 "getifname", 67 NULL, 68 &ng_parse_string_type 69 }, 70 { 71 NGM_EIFACE_COOKIE, 72 NGM_EIFACE_SET, 73 "set", 74 &ng_parse_enaddr_type, 75 NULL 76 }, 77 { 0 } 78 }; 79 80 /* Node private data */ 81 struct ng_eiface_private { 82 struct ifnet *ifp; /* per-interface network data */ 83 struct ifmedia media; /* (fake) media information */ 84 int link_status; /* fake */ 85 int unit; /* Interface unit number */ 86 node_p node; /* Our netgraph node */ 87 hook_p ether; /* Hook for ethernet stream */ 88 }; 89 typedef struct ng_eiface_private *priv_p; 90 91 /* Interface methods */ 92 static void ng_eiface_init(void *xsc); 93 static void ng_eiface_start(struct ifnet *ifp); 94 static int ng_eiface_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data); 95 #ifdef DEBUG 96 static void ng_eiface_print_ioctl(struct ifnet *ifp, int cmd, caddr_t data); 97 #endif 98 99 /* Netgraph methods */ 100 static int ng_eiface_mod_event(module_t, int, void *); 101 static ng_constructor_t ng_eiface_constructor; 102 static ng_rcvmsg_t ng_eiface_rcvmsg; 103 static ng_shutdown_t ng_eiface_rmnode; 104 static ng_newhook_t ng_eiface_newhook; 105 static ng_rcvdata_t ng_eiface_rcvdata; 106 static ng_disconnect_t ng_eiface_disconnect; 107 108 /* Node type descriptor */ 109 static struct ng_type typestruct = { 110 .version = NG_ABI_VERSION, 111 .name = NG_EIFACE_NODE_TYPE, 112 .mod_event = ng_eiface_mod_event, 113 .constructor = ng_eiface_constructor, 114 .rcvmsg = ng_eiface_rcvmsg, 115 .shutdown = ng_eiface_rmnode, 116 .newhook = ng_eiface_newhook, 117 .rcvdata = ng_eiface_rcvdata, 118 .disconnect = ng_eiface_disconnect, 119 .cmdlist = ng_eiface_cmdlist 120 }; 121 NETGRAPH_INIT(eiface, &typestruct); 122 123 VNET_DEFINE_STATIC(struct unrhdr *, ng_eiface_unit); 124 #define V_ng_eiface_unit VNET(ng_eiface_unit) 125 126 /************************************************************************ 127 INTERFACE STUFF 128 ************************************************************************/ 129 130 /* 131 * Process an ioctl for the virtual interface 132 */ 133 static int 134 ng_eiface_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 135 { 136 const priv_p priv = (priv_p)ifp->if_softc; 137 struct ifreq *const ifr = (struct ifreq *)data; 138 int error = 0; 139 140 #ifdef DEBUG 141 ng_eiface_print_ioctl(ifp, command, data); 142 #endif 143 switch (command) { 144 /* These two are mostly handled at a higher layer */ 145 case SIOCSIFADDR: 146 error = ether_ioctl(ifp, command, data); 147 break; 148 case SIOCGIFADDR: 149 break; 150 151 /* Set flags */ 152 case SIOCSIFFLAGS: 153 /* 154 * If the interface is marked up and stopped, then start it. 155 * If it is marked down and running, then stop it. 156 */ 157 if (ifp->if_flags & IFF_UP) { 158 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 159 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE); 160 ifp->if_drv_flags |= IFF_DRV_RUNNING; 161 } 162 } else { 163 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 164 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | 165 IFF_DRV_OACTIVE); 166 } 167 break; 168 169 /* Set the interface MTU */ 170 case SIOCSIFMTU: 171 if (ifr->ifr_mtu > NG_EIFACE_MTU_MAX || 172 ifr->ifr_mtu < NG_EIFACE_MTU_MIN) 173 error = EINVAL; 174 else 175 ifp->if_mtu = ifr->ifr_mtu; 176 break; 177 178 /* (Fake) media type manipulation */ 179 case SIOCSIFMEDIA: 180 case SIOCGIFMEDIA: 181 error = ifmedia_ioctl(ifp, ifr, &priv->media, command); 182 break; 183 184 /* Stuff that's not supported */ 185 case SIOCADDMULTI: 186 case SIOCDELMULTI: 187 error = 0; 188 break; 189 case SIOCSIFPHYS: 190 error = EOPNOTSUPP; 191 break; 192 193 default: 194 error = EINVAL; 195 break; 196 } 197 return (error); 198 } 199 200 static void 201 ng_eiface_init(void *xsc) 202 { 203 priv_p sc = xsc; 204 struct ifnet *ifp = sc->ifp; 205 206 ifp->if_drv_flags |= IFF_DRV_RUNNING; 207 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 208 } 209 210 /* 211 * We simply relay the packet to the "ether" hook, if it is connected. 212 * We have been through the netgraph locking and are guaranteed to 213 * be the only code running in this node at this time. 214 */ 215 static void 216 ng_eiface_start2(node_p node, hook_p hook, void *arg1, int arg2) 217 { 218 struct ifnet *ifp = arg1; 219 const priv_p priv = (priv_p)ifp->if_softc; 220 int error = 0; 221 struct mbuf *m; 222 223 /* Check interface flags */ 224 225 if (!((ifp->if_flags & IFF_UP) && 226 (ifp->if_drv_flags & IFF_DRV_RUNNING))) 227 return; 228 229 for (;;) { 230 /* 231 * Grab a packet to transmit. 232 */ 233 IF_DEQUEUE(&ifp->if_snd, m); 234 235 /* If there's nothing to send, break. */ 236 if (m == NULL) 237 break; 238 239 /* Peel the mbuf off any stale tags */ 240 m_tag_delete_chain(m, NULL); 241 242 /* 243 * Berkeley packet filter. 244 * Pass packet to bpf if there is a listener. 245 * XXX is this safe? locking? 246 */ 247 BPF_MTAP(ifp, m); 248 249 if (ifp->if_flags & IFF_MONITOR) { 250 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 251 m_freem(m); 252 continue; 253 } 254 255 /* 256 * Send packet; if hook is not connected, mbuf will get 257 * freed. 258 */ 259 NG_OUTBOUND_THREAD_REF(); 260 CURVNET_SET_QUIET(priv->node->nd_vnet); 261 NG_SEND_DATA_ONLY(error, priv->ether, m); 262 CURVNET_RESTORE(); 263 NG_OUTBOUND_THREAD_UNREF(); 264 265 /* Update stats */ 266 if (error == 0) 267 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 268 else 269 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 270 } 271 272 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 273 274 return; 275 } 276 277 /* 278 * This routine is called to deliver a packet out the interface. 279 * We simply queue the netgraph version to be called when netgraph locking 280 * allows it to happen. 281 * Until we know what the rest of the networking code is doing for 282 * locking, we don't know how we will interact with it. 283 * Take comfort from the fact that the ifnet struct is part of our 284 * private info and can't go away while we are queued. 285 * [Though we don't know it is still there now....] 286 * it is possible we don't gain anything from this because 287 * we would like to get the mbuf and queue it as data 288 * somehow, but we can't and if we did would we solve anything? 289 */ 290 static void 291 ng_eiface_start(struct ifnet *ifp) 292 { 293 const priv_p priv = (priv_p)ifp->if_softc; 294 295 /* Don't do anything if output is active */ 296 if (ifp->if_drv_flags & IFF_DRV_OACTIVE) 297 return; 298 299 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 300 301 if (ng_send_fn(priv->node, NULL, &ng_eiface_start2, ifp, 0) != 0) 302 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 303 } 304 305 #ifdef DEBUG 306 /* 307 * Display an ioctl to the virtual interface 308 */ 309 310 static void 311 ng_eiface_print_ioctl(struct ifnet *ifp, int command, caddr_t data) 312 { 313 char *str; 314 315 switch (command & IOC_DIRMASK) { 316 case IOC_VOID: 317 str = "IO"; 318 break; 319 case IOC_OUT: 320 str = "IOR"; 321 break; 322 case IOC_IN: 323 str = "IOW"; 324 break; 325 case IOC_INOUT: 326 str = "IORW"; 327 break; 328 default: 329 str = "IO??"; 330 } 331 log(LOG_DEBUG, "%s: %s('%c', %d, char[%d])\n", 332 ifp->if_xname, 333 str, 334 IOCGROUP(command), 335 command & 0xff, 336 IOCPARM_LEN(command)); 337 } 338 #endif /* DEBUG */ 339 340 /* 341 * ifmedia stuff 342 */ 343 static int 344 ng_eiface_mediachange(struct ifnet *ifp) 345 { 346 const priv_p priv = (priv_p)ifp->if_softc; 347 struct ifmedia *ifm = &priv->media; 348 349 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 350 return (EINVAL); 351 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) 352 ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T); 353 else 354 ifp->if_baudrate = ifmedia_baudrate(ifm->ifm_media); 355 356 return (0); 357 } 358 359 static void 360 ng_eiface_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 361 { 362 const priv_p priv = (priv_p)ifp->if_softc; 363 struct ifmedia *ifm = &priv->media; 364 365 if (ifm->ifm_cur->ifm_media == (IFM_ETHER | IFM_AUTO) && 366 (priv->link_status & IFM_ACTIVE)) 367 ifmr->ifm_active = IFM_ETHER | IFM_1000_T | IFM_FDX; 368 else 369 ifmr->ifm_active = ifm->ifm_cur->ifm_media; 370 ifmr->ifm_status = priv->link_status; 371 372 return; 373 } 374 375 /************************************************************************ 376 NETGRAPH NODE STUFF 377 ************************************************************************/ 378 379 /* 380 * Constructor for a node 381 */ 382 static int 383 ng_eiface_constructor(node_p node) 384 { 385 struct ifnet *ifp; 386 priv_p priv; 387 struct ether_addr eaddr; 388 389 /* Allocate node and interface private structures */ 390 priv = malloc(sizeof(*priv), M_NETGRAPH, M_WAITOK | M_ZERO); 391 ifp = priv->ifp = if_alloc(IFT_ETHER); 392 393 /* Link them together */ 394 ifp->if_softc = priv; 395 396 /* Get an interface unit number */ 397 priv->unit = alloc_unr(V_ng_eiface_unit); 398 399 /* Link together node and private info */ 400 NG_NODE_SET_PRIVATE(node, priv); 401 priv->node = node; 402 403 /* Initialize interface structure */ 404 if_initname(ifp, NG_EIFACE_EIFACE_NAME, priv->unit); 405 ifp->if_init = ng_eiface_init; 406 ifp->if_output = ether_output; 407 ifp->if_start = ng_eiface_start; 408 ifp->if_ioctl = ng_eiface_ioctl; 409 ifp->if_snd.ifq_maxlen = ifqmaxlen; 410 ifp->if_flags = (IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST); 411 ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU; 412 ifp->if_capenable = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU; 413 ifmedia_init(&priv->media, 0, ng_eiface_mediachange, 414 ng_eiface_mediastatus); 415 ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T, 0, NULL); 416 ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL); 417 ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX, 0, NULL); 418 ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL); 419 ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T, 0, NULL); 420 ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL); 421 ifmedia_add(&priv->media, IFM_ETHER | IFM_10G_T | IFM_FDX, 0, NULL); 422 ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO, 0, NULL); 423 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO); 424 priv->link_status = IFM_AVALID; 425 426 /* Give this node the same name as the interface (if possible) */ 427 if (ng_name_node(node, ifp->if_xname) != 0) 428 log(LOG_WARNING, "%s: can't acquire netgraph name\n", 429 ifp->if_xname); 430 431 /* Attach the interface */ 432 ether_gen_addr(ifp, &eaddr); 433 ether_ifattach(ifp, eaddr.octet); 434 ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T); 435 436 /* Done */ 437 return (0); 438 } 439 440 /* 441 * Give our ok for a hook to be added 442 */ 443 static int 444 ng_eiface_newhook(node_p node, hook_p hook, const char *name) 445 { 446 priv_p priv = NG_NODE_PRIVATE(node); 447 struct ifnet *ifp = priv->ifp; 448 449 if (strcmp(name, NG_EIFACE_HOOK_ETHER)) 450 return (EPFNOSUPPORT); 451 if (priv->ether != NULL) 452 return (EISCONN); 453 priv->ether = hook; 454 NG_HOOK_SET_PRIVATE(hook, &priv->ether); 455 NG_HOOK_SET_TO_INBOUND(hook); 456 457 priv->link_status |= IFM_ACTIVE; 458 CURVNET_SET_QUIET(ifp->if_vnet); 459 if_link_state_change(ifp, LINK_STATE_UP); 460 CURVNET_RESTORE(); 461 462 return (0); 463 } 464 465 /* 466 * Receive a control message 467 */ 468 static int 469 ng_eiface_rcvmsg(node_p node, item_p item, hook_p lasthook) 470 { 471 const priv_p priv = NG_NODE_PRIVATE(node); 472 struct ifnet *const ifp = priv->ifp; 473 struct ng_mesg *resp = NULL; 474 int error = 0; 475 struct ng_mesg *msg; 476 477 NGI_GET_MSG(item, msg); 478 switch (msg->header.typecookie) { 479 case NGM_EIFACE_COOKIE: 480 switch (msg->header.cmd) { 481 case NGM_EIFACE_SET: 482 { 483 if (msg->header.arglen != ETHER_ADDR_LEN) { 484 error = EINVAL; 485 break; 486 } 487 error = if_setlladdr(priv->ifp, 488 (u_char *)msg->data, ETHER_ADDR_LEN); 489 break; 490 } 491 492 case NGM_EIFACE_GET_IFNAME: 493 NG_MKRESPONSE(resp, msg, IFNAMSIZ, M_NOWAIT); 494 if (resp == NULL) { 495 error = ENOMEM; 496 break; 497 } 498 strlcpy(resp->data, ifp->if_xname, IFNAMSIZ); 499 break; 500 501 case NGM_EIFACE_GET_IFADDRS: 502 { 503 struct epoch_tracker et; 504 struct ifaddr *ifa; 505 caddr_t ptr; 506 int buflen; 507 508 /* Determine size of response and allocate it */ 509 buflen = 0; 510 NET_EPOCH_ENTER(et); 511 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) 512 buflen += SA_SIZE(ifa->ifa_addr); 513 NG_MKRESPONSE(resp, msg, buflen, M_NOWAIT); 514 if (resp == NULL) { 515 NET_EPOCH_EXIT(et); 516 error = ENOMEM; 517 break; 518 } 519 520 /* Add addresses */ 521 ptr = resp->data; 522 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { 523 const int len = SA_SIZE(ifa->ifa_addr); 524 525 if (buflen < len) { 526 log(LOG_ERR, "%s: len changed?\n", 527 ifp->if_xname); 528 break; 529 } 530 bcopy(ifa->ifa_addr, ptr, len); 531 ptr += len; 532 buflen -= len; 533 } 534 NET_EPOCH_EXIT(et); 535 break; 536 } 537 538 default: 539 error = EINVAL; 540 break; 541 } /* end of inner switch() */ 542 break; 543 case NGM_FLOW_COOKIE: 544 CURVNET_SET_QUIET(ifp->if_vnet); 545 switch (msg->header.cmd) { 546 case NGM_LINK_IS_UP: 547 priv->link_status |= IFM_ACTIVE; 548 if_link_state_change(ifp, LINK_STATE_UP); 549 break; 550 case NGM_LINK_IS_DOWN: 551 priv->link_status &= ~IFM_ACTIVE; 552 if_link_state_change(ifp, LINK_STATE_DOWN); 553 break; 554 default: 555 break; 556 } 557 CURVNET_RESTORE(); 558 break; 559 default: 560 error = EINVAL; 561 break; 562 } 563 NG_RESPOND_MSG(error, node, item, resp); 564 NG_FREE_MSG(msg); 565 return (error); 566 } 567 568 /* 569 * Receive data from a hook. Pass the packet to the ether_input routine. 570 */ 571 static int 572 ng_eiface_rcvdata(hook_p hook, item_p item) 573 { 574 const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook)); 575 struct ifnet *const ifp = priv->ifp; 576 struct mbuf *m; 577 578 NGI_GET_M(item, m); 579 NG_FREE_ITEM(item); 580 581 if (!((ifp->if_flags & IFF_UP) && 582 (ifp->if_drv_flags & IFF_DRV_RUNNING))) { 583 NG_FREE_M(m); 584 return (ENETDOWN); 585 } 586 587 if (m->m_len < ETHER_HDR_LEN) { 588 m = m_pullup(m, ETHER_HDR_LEN); 589 if (m == NULL) 590 return (EINVAL); 591 } 592 593 /* Note receiving interface */ 594 m->m_pkthdr.rcvif = ifp; 595 596 /* Update interface stats */ 597 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 598 599 (*ifp->if_input)(ifp, m); 600 601 /* Done */ 602 return (0); 603 } 604 605 /* 606 * Shutdown processing. 607 */ 608 static int 609 ng_eiface_rmnode(node_p node) 610 { 611 const priv_p priv = NG_NODE_PRIVATE(node); 612 struct ifnet *const ifp = priv->ifp; 613 614 /* 615 * the ifnet may be in a different vnet than the netgraph node, 616 * hence we have to change the current vnet context here. 617 */ 618 CURVNET_SET_QUIET(ifp->if_vnet); 619 ether_ifdetach(ifp); 620 ifmedia_removeall(&priv->media); 621 if_free(ifp); 622 CURVNET_RESTORE(); 623 free_unr(V_ng_eiface_unit, priv->unit); 624 free(priv, M_NETGRAPH); 625 NG_NODE_SET_PRIVATE(node, NULL); 626 NG_NODE_UNREF(node); 627 return (0); 628 } 629 630 /* 631 * Hook disconnection 632 */ 633 static int 634 ng_eiface_disconnect(hook_p hook) 635 { 636 const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook)); 637 638 priv->ether = NULL; 639 priv->link_status &= ~IFM_ACTIVE; 640 CURVNET_SET_QUIET(priv->ifp->if_vnet); 641 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 642 CURVNET_RESTORE(); 643 return (0); 644 } 645 646 /* 647 * Handle loading and unloading for this node type. 648 */ 649 static int 650 ng_eiface_mod_event(module_t mod, int event, void *data) 651 { 652 int error = 0; 653 654 switch (event) { 655 case MOD_LOAD: 656 case MOD_UNLOAD: 657 break; 658 default: 659 error = EOPNOTSUPP; 660 break; 661 } 662 return (error); 663 } 664 665 static void 666 vnet_ng_eiface_init(const void *unused) 667 { 668 669 V_ng_eiface_unit = new_unrhdr(0, 0xffff, NULL); 670 } 671 VNET_SYSINIT(vnet_ng_eiface_init, SI_SUB_PSEUDO, SI_ORDER_ANY, 672 vnet_ng_eiface_init, NULL); 673 674 static void 675 vnet_ng_eiface_uninit(const void *unused) 676 { 677 678 delete_unrhdr(V_ng_eiface_unit); 679 } 680 VNET_SYSUNINIT(vnet_ng_eiface_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY, 681 vnet_ng_eiface_uninit, NULL); 682