1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 31 */ 32 33 #include <sys/param.h> 34 #include <sys/eventhandler.h> 35 #include <sys/systm.h> 36 #include <sys/errno.h> 37 #include <sys/kernel.h> 38 #include <sys/malloc.h> 39 #include <sys/mbuf.h> 40 #include <sys/errno.h> 41 #include <sys/proc.h> 42 #include <sys/sockio.h> 43 #include <sys/socket.h> 44 #include <sys/syslog.h> 45 46 #include <net/if.h> 47 #include <net/if_var.h> 48 #include <net/if_media.h> 49 #include <net/if_private.h> 50 #include <net/if_types.h> 51 #include <net/netisr.h> 52 #include <net/route.h> 53 #include <net/vnet.h> 54 55 #include <netgraph/ng_message.h> 56 #include <netgraph/netgraph.h> 57 #include <netgraph/ng_parse.h> 58 #include <netgraph/ng_eiface.h> 59 60 #include <net/bpf.h> 61 #include <net/ethernet.h> 62 #include <net/if_arp.h> 63 64 static const struct ng_cmdlist ng_eiface_cmdlist[] = { 65 { 66 NGM_EIFACE_COOKIE, 67 NGM_EIFACE_GET_IFNAME, 68 "getifname", 69 NULL, 70 &ng_parse_string_type 71 }, 72 { 73 NGM_EIFACE_COOKIE, 74 NGM_EIFACE_SET, 75 "set", 76 &ng_parse_enaddr_type, 77 NULL 78 }, 79 { 0 } 80 }; 81 82 /* Node private data */ 83 struct ng_eiface_private { 84 struct ifnet *ifp; /* per-interface network data */ 85 struct ifmedia media; /* (fake) media information */ 86 int link_status; /* fake */ 87 int unit; /* Interface unit number */ 88 node_p node; /* Our netgraph node */ 89 hook_p ether; /* Hook for ethernet stream */ 90 }; 91 typedef struct ng_eiface_private *priv_p; 92 93 /* Interface methods */ 94 static void ng_eiface_init(void *xsc); 95 static void ng_eiface_start(struct ifnet *ifp); 96 static int ng_eiface_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data); 97 #ifdef DEBUG 98 static void ng_eiface_print_ioctl(struct ifnet *ifp, int cmd, caddr_t data); 99 #endif 100 101 /* Netgraph methods */ 102 static int ng_eiface_mod_event(module_t, int, void *); 103 static ng_constructor_t ng_eiface_constructor; 104 static ng_rcvmsg_t ng_eiface_rcvmsg; 105 static ng_shutdown_t ng_eiface_rmnode; 106 static ng_newhook_t ng_eiface_newhook; 107 static ng_rcvdata_t ng_eiface_rcvdata; 108 static ng_disconnect_t ng_eiface_disconnect; 109 110 /* Node type descriptor */ 111 static struct ng_type typestruct = { 112 .version = NG_ABI_VERSION, 113 .name = NG_EIFACE_NODE_TYPE, 114 .mod_event = ng_eiface_mod_event, 115 .constructor = ng_eiface_constructor, 116 .rcvmsg = ng_eiface_rcvmsg, 117 .shutdown = ng_eiface_rmnode, 118 .newhook = ng_eiface_newhook, 119 .rcvdata = ng_eiface_rcvdata, 120 .disconnect = ng_eiface_disconnect, 121 .cmdlist = ng_eiface_cmdlist 122 }; 123 NETGRAPH_INIT(eiface, &typestruct); 124 125 VNET_DEFINE_STATIC(struct unrhdr *, ng_eiface_unit); 126 #define V_ng_eiface_unit VNET(ng_eiface_unit) 127 128 /************************************************************************ 129 INTERFACE STUFF 130 ************************************************************************/ 131 132 /* 133 * Process an ioctl for the virtual interface 134 */ 135 static int 136 ng_eiface_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 137 { 138 const priv_p priv = (priv_p)ifp->if_softc; 139 struct ifreq *const ifr = (struct ifreq *)data; 140 int error = 0; 141 142 #ifdef DEBUG 143 ng_eiface_print_ioctl(ifp, command, data); 144 #endif 145 switch (command) { 146 /* These two are mostly handled at a higher layer */ 147 case SIOCSIFADDR: 148 error = ether_ioctl(ifp, command, data); 149 break; 150 case SIOCGIFADDR: 151 break; 152 153 /* Set flags */ 154 case SIOCSIFFLAGS: 155 /* 156 * If the interface is marked up and stopped, then start it. 157 * If it is marked down and running, then stop it. 158 */ 159 if (ifp->if_flags & IFF_UP) { 160 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 161 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE); 162 ifp->if_drv_flags |= IFF_DRV_RUNNING; 163 } 164 } else { 165 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 166 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | 167 IFF_DRV_OACTIVE); 168 } 169 break; 170 171 /* Set the interface MTU */ 172 case SIOCSIFMTU: 173 if (ifr->ifr_mtu > NG_EIFACE_MTU_MAX || 174 ifr->ifr_mtu < NG_EIFACE_MTU_MIN) 175 error = EINVAL; 176 else 177 ifp->if_mtu = ifr->ifr_mtu; 178 break; 179 180 /* (Fake) media type manipulation */ 181 case SIOCSIFMEDIA: 182 case SIOCGIFMEDIA: 183 error = ifmedia_ioctl(ifp, ifr, &priv->media, command); 184 break; 185 186 /* Stuff that's not supported */ 187 case SIOCADDMULTI: 188 case SIOCDELMULTI: 189 error = 0; 190 break; 191 case SIOCSIFPHYS: 192 error = EOPNOTSUPP; 193 break; 194 195 default: 196 error = EINVAL; 197 break; 198 } 199 return (error); 200 } 201 202 static void 203 ng_eiface_init(void *xsc) 204 { 205 priv_p sc = xsc; 206 struct ifnet *ifp = sc->ifp; 207 208 ifp->if_drv_flags |= IFF_DRV_RUNNING; 209 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 210 } 211 212 /* 213 * We simply relay the packet to the "ether" hook, if it is connected. 214 * We have been through the netgraph locking and are guaranteed to 215 * be the only code running in this node at this time. 216 */ 217 static void 218 ng_eiface_start2(node_p node, hook_p hook, void *arg1, int arg2) 219 { 220 struct ifnet *ifp = arg1; 221 const priv_p priv = (priv_p)ifp->if_softc; 222 int error = 0; 223 struct mbuf *m; 224 225 /* Check interface flags */ 226 227 if (!((ifp->if_flags & IFF_UP) && 228 (ifp->if_drv_flags & IFF_DRV_RUNNING))) 229 return; 230 231 for (;;) { 232 /* 233 * Grab a packet to transmit. 234 */ 235 IF_DEQUEUE(&ifp->if_snd, m); 236 237 /* If there's nothing to send, break. */ 238 if (m == NULL) 239 break; 240 241 /* Peel the mbuf off any stale tags */ 242 m_tag_delete_chain(m, NULL); 243 244 /* 245 * Berkeley packet filter. 246 * Pass packet to bpf if there is a listener. 247 * XXX is this safe? locking? 248 */ 249 BPF_MTAP(ifp, m); 250 251 if (ifp->if_flags & IFF_MONITOR) { 252 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 253 m_freem(m); 254 continue; 255 } 256 257 /* 258 * Send packet; if hook is not connected, mbuf will get 259 * freed. 260 */ 261 NG_OUTBOUND_THREAD_REF(); 262 NG_SEND_DATA_ONLY(error, priv->ether, m); 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); 391 392 ifp = priv->ifp = if_alloc(IFT_ETHER); 393 if (ifp == NULL) { 394 free(priv, M_NETGRAPH); 395 return (ENOSPC); 396 } 397 398 /* Link them together */ 399 ifp->if_softc = priv; 400 401 /* Get an interface unit number */ 402 priv->unit = alloc_unr(V_ng_eiface_unit); 403 404 /* Link together node and private info */ 405 NG_NODE_SET_PRIVATE(node, priv); 406 priv->node = node; 407 408 /* Initialize interface structure */ 409 if_initname(ifp, NG_EIFACE_EIFACE_NAME, priv->unit); 410 ifp->if_init = ng_eiface_init; 411 ifp->if_output = ether_output; 412 ifp->if_start = ng_eiface_start; 413 ifp->if_ioctl = ng_eiface_ioctl; 414 ifp->if_snd.ifq_maxlen = ifqmaxlen; 415 ifp->if_flags = (IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST); 416 ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU; 417 ifp->if_capenable = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU; 418 ifmedia_init(&priv->media, 0, ng_eiface_mediachange, 419 ng_eiface_mediastatus); 420 ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T, 0, NULL); 421 ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL); 422 ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX, 0, NULL); 423 ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL); 424 ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T, 0, NULL); 425 ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL); 426 ifmedia_add(&priv->media, IFM_ETHER | IFM_10G_T | IFM_FDX, 0, NULL); 427 ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO, 0, NULL); 428 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO); 429 priv->link_status = IFM_AVALID; 430 431 /* Give this node the same name as the interface (if possible) */ 432 if (ng_name_node(node, ifp->if_xname) != 0) 433 log(LOG_WARNING, "%s: can't acquire netgraph name\n", 434 ifp->if_xname); 435 436 /* Attach the interface */ 437 ether_gen_addr(ifp, &eaddr); 438 ether_ifattach(ifp, eaddr.octet); 439 ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T); 440 441 /* Done */ 442 return (0); 443 } 444 445 /* 446 * Give our ok for a hook to be added 447 */ 448 static int 449 ng_eiface_newhook(node_p node, hook_p hook, const char *name) 450 { 451 priv_p priv = NG_NODE_PRIVATE(node); 452 struct ifnet *ifp = priv->ifp; 453 454 if (strcmp(name, NG_EIFACE_HOOK_ETHER)) 455 return (EPFNOSUPPORT); 456 if (priv->ether != NULL) 457 return (EISCONN); 458 priv->ether = hook; 459 NG_HOOK_SET_PRIVATE(hook, &priv->ether); 460 NG_HOOK_SET_TO_INBOUND(hook); 461 462 priv->link_status |= IFM_ACTIVE; 463 CURVNET_SET_QUIET(ifp->if_vnet); 464 if_link_state_change(ifp, LINK_STATE_UP); 465 CURVNET_RESTORE(); 466 467 return (0); 468 } 469 470 /* 471 * Receive a control message 472 */ 473 static int 474 ng_eiface_rcvmsg(node_p node, item_p item, hook_p lasthook) 475 { 476 const priv_p priv = NG_NODE_PRIVATE(node); 477 struct ifnet *const ifp = priv->ifp; 478 struct ng_mesg *resp = NULL; 479 int error = 0; 480 struct ng_mesg *msg; 481 482 NGI_GET_MSG(item, msg); 483 switch (msg->header.typecookie) { 484 case NGM_EIFACE_COOKIE: 485 switch (msg->header.cmd) { 486 case NGM_EIFACE_SET: 487 { 488 if (msg->header.arglen != ETHER_ADDR_LEN) { 489 error = EINVAL; 490 break; 491 } 492 error = if_setlladdr(priv->ifp, 493 (u_char *)msg->data, ETHER_ADDR_LEN); 494 break; 495 } 496 497 case NGM_EIFACE_GET_IFNAME: 498 NG_MKRESPONSE(resp, msg, IFNAMSIZ, M_NOWAIT); 499 if (resp == NULL) { 500 error = ENOMEM; 501 break; 502 } 503 strlcpy(resp->data, ifp->if_xname, IFNAMSIZ); 504 break; 505 506 case NGM_EIFACE_GET_IFADDRS: 507 { 508 struct epoch_tracker et; 509 struct ifaddr *ifa; 510 caddr_t ptr; 511 int buflen; 512 513 /* Determine size of response and allocate it */ 514 buflen = 0; 515 NET_EPOCH_ENTER(et); 516 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) 517 buflen += SA_SIZE(ifa->ifa_addr); 518 NG_MKRESPONSE(resp, msg, buflen, M_NOWAIT); 519 if (resp == NULL) { 520 NET_EPOCH_EXIT(et); 521 error = ENOMEM; 522 break; 523 } 524 525 /* Add addresses */ 526 ptr = resp->data; 527 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { 528 const int len = SA_SIZE(ifa->ifa_addr); 529 530 if (buflen < len) { 531 log(LOG_ERR, "%s: len changed?\n", 532 ifp->if_xname); 533 break; 534 } 535 bcopy(ifa->ifa_addr, ptr, len); 536 ptr += len; 537 buflen -= len; 538 } 539 NET_EPOCH_EXIT(et); 540 break; 541 } 542 543 default: 544 error = EINVAL; 545 break; 546 } /* end of inner switch() */ 547 break; 548 case NGM_FLOW_COOKIE: 549 CURVNET_SET_QUIET(ifp->if_vnet); 550 switch (msg->header.cmd) { 551 case NGM_LINK_IS_UP: 552 priv->link_status |= IFM_ACTIVE; 553 if_link_state_change(ifp, LINK_STATE_UP); 554 break; 555 case NGM_LINK_IS_DOWN: 556 priv->link_status &= ~IFM_ACTIVE; 557 if_link_state_change(ifp, LINK_STATE_DOWN); 558 break; 559 default: 560 break; 561 } 562 CURVNET_RESTORE(); 563 break; 564 default: 565 error = EINVAL; 566 break; 567 } 568 NG_RESPOND_MSG(error, node, item, resp); 569 NG_FREE_MSG(msg); 570 return (error); 571 } 572 573 /* 574 * Receive data from a hook. Pass the packet to the ether_input routine. 575 */ 576 static int 577 ng_eiface_rcvdata(hook_p hook, item_p item) 578 { 579 const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook)); 580 struct ifnet *const ifp = priv->ifp; 581 struct mbuf *m; 582 583 NGI_GET_M(item, m); 584 NG_FREE_ITEM(item); 585 586 if (!((ifp->if_flags & IFF_UP) && 587 (ifp->if_drv_flags & IFF_DRV_RUNNING))) { 588 NG_FREE_M(m); 589 return (ENETDOWN); 590 } 591 592 if (m->m_len < ETHER_HDR_LEN) { 593 m = m_pullup(m, ETHER_HDR_LEN); 594 if (m == NULL) 595 return (EINVAL); 596 } 597 598 /* Note receiving interface */ 599 m->m_pkthdr.rcvif = ifp; 600 601 /* Update interface stats */ 602 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 603 604 (*ifp->if_input)(ifp, m); 605 606 /* Done */ 607 return (0); 608 } 609 610 /* 611 * Shutdown processing. 612 */ 613 static int 614 ng_eiface_rmnode(node_p node) 615 { 616 const priv_p priv = NG_NODE_PRIVATE(node); 617 struct ifnet *const ifp = priv->ifp; 618 619 /* 620 * the ifnet may be in a different vnet than the netgraph node, 621 * hence we have to change the current vnet context here. 622 */ 623 CURVNET_SET_QUIET(ifp->if_vnet); 624 ether_ifdetach(ifp); 625 ifmedia_removeall(&priv->media); 626 if_free(ifp); 627 CURVNET_RESTORE(); 628 free_unr(V_ng_eiface_unit, priv->unit); 629 free(priv, M_NETGRAPH); 630 NG_NODE_SET_PRIVATE(node, NULL); 631 NG_NODE_UNREF(node); 632 return (0); 633 } 634 635 /* 636 * Hook disconnection 637 */ 638 static int 639 ng_eiface_disconnect(hook_p hook) 640 { 641 const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook)); 642 643 priv->ether = NULL; 644 priv->link_status &= ~IFM_ACTIVE; 645 CURVNET_SET_QUIET(priv->ifp->if_vnet); 646 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 647 CURVNET_RESTORE(); 648 return (0); 649 } 650 651 /* 652 * Handle loading and unloading for this node type. 653 */ 654 static int 655 ng_eiface_mod_event(module_t mod, int event, void *data) 656 { 657 int error = 0; 658 659 switch (event) { 660 case MOD_LOAD: 661 case MOD_UNLOAD: 662 break; 663 default: 664 error = EOPNOTSUPP; 665 break; 666 } 667 return (error); 668 } 669 670 static void 671 vnet_ng_eiface_init(const void *unused) 672 { 673 674 V_ng_eiface_unit = new_unrhdr(0, 0xffff, NULL); 675 } 676 VNET_SYSINIT(vnet_ng_eiface_init, SI_SUB_PSEUDO, SI_ORDER_ANY, 677 vnet_ng_eiface_init, NULL); 678 679 static void 680 vnet_ng_eiface_uninit(const void *unused) 681 { 682 683 delete_unrhdr(V_ng_eiface_unit); 684 } 685 VNET_SYSUNINIT(vnet_ng_eiface_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY, 686 vnet_ng_eiface_uninit, NULL); 687