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_types.h> 50 #include <net/netisr.h> 51 #include <net/route.h> 52 #include <net/vnet.h> 53 54 #include <netgraph/ng_message.h> 55 #include <netgraph/netgraph.h> 56 #include <netgraph/ng_parse.h> 57 #include <netgraph/ng_eiface.h> 58 59 #include <net/bpf.h> 60 #include <net/ethernet.h> 61 #include <net/if_arp.h> 62 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) { 146 147 /* These two are mostly handled at a higher layer */ 148 case SIOCSIFADDR: 149 error = ether_ioctl(ifp, command, data); 150 break; 151 case SIOCGIFADDR: 152 break; 153 154 /* Set flags */ 155 case SIOCSIFFLAGS: 156 /* 157 * If the interface is marked up and stopped, then start it. 158 * If it is marked down and running, then stop it. 159 */ 160 if (ifp->if_flags & IFF_UP) { 161 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 162 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE); 163 ifp->if_drv_flags |= IFF_DRV_RUNNING; 164 } 165 } else { 166 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 167 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | 168 IFF_DRV_OACTIVE); 169 } 170 break; 171 172 /* Set the interface MTU */ 173 case SIOCSIFMTU: 174 if (ifr->ifr_mtu > NG_EIFACE_MTU_MAX || 175 ifr->ifr_mtu < NG_EIFACE_MTU_MIN) 176 error = EINVAL; 177 else 178 ifp->if_mtu = ifr->ifr_mtu; 179 break; 180 181 /* (Fake) media type manipulation */ 182 case SIOCSIFMEDIA: 183 case SIOCGIFMEDIA: 184 error = ifmedia_ioctl(ifp, ifr, &priv->media, command); 185 break; 186 187 /* Stuff that's not supported */ 188 case SIOCADDMULTI: 189 case SIOCDELMULTI: 190 error = 0; 191 break; 192 case SIOCSIFPHYS: 193 error = EOPNOTSUPP; 194 break; 195 196 default: 197 error = EINVAL; 198 break; 199 } 200 return (error); 201 } 202 203 static void 204 ng_eiface_init(void *xsc) 205 { 206 priv_p sc = xsc; 207 struct ifnet *ifp = sc->ifp; 208 209 ifp->if_drv_flags |= IFF_DRV_RUNNING; 210 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 211 } 212 213 /* 214 * We simply relay the packet to the "ether" hook, if it is connected. 215 * We have been through the netgraph locking and are guaranteed to 216 * be the only code running in this node at this time. 217 */ 218 static void 219 ng_eiface_start2(node_p node, hook_p hook, void *arg1, int arg2) 220 { 221 struct ifnet *ifp = arg1; 222 const priv_p priv = (priv_p)ifp->if_softc; 223 int error = 0; 224 struct mbuf *m; 225 226 /* Check interface flags */ 227 228 if (!((ifp->if_flags & IFF_UP) && 229 (ifp->if_drv_flags & IFF_DRV_RUNNING))) 230 return; 231 232 for (;;) { 233 /* 234 * Grab a packet to transmit. 235 */ 236 IF_DEQUEUE(&ifp->if_snd, m); 237 238 /* If there's nothing to send, break. */ 239 if (m == NULL) 240 break; 241 242 /* Peel the mbuf off any stale tags */ 243 m_tag_delete_chain(m, NULL); 244 245 /* 246 * Berkeley packet filter. 247 * Pass packet to bpf if there is a listener. 248 * XXX is this safe? locking? 249 */ 250 BPF_MTAP(ifp, m); 251 252 if (ifp->if_flags & IFF_MONITOR) { 253 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 254 m_freem(m); 255 continue; 256 } 257 258 /* 259 * Send packet; if hook is not connected, mbuf will get 260 * freed. 261 */ 262 NG_OUTBOUND_THREAD_REF(); 263 NG_SEND_DATA_ONLY(error, priv->ether, m); 264 NG_OUTBOUND_THREAD_UNREF(); 265 266 /* Update stats */ 267 if (error == 0) 268 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 269 else 270 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 271 } 272 273 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 274 275 return; 276 } 277 278 /* 279 * This routine is called to deliver a packet out the interface. 280 * We simply queue the netgraph version to be called when netgraph locking 281 * allows it to happen. 282 * Until we know what the rest of the networking code is doing for 283 * locking, we don't know how we will interact with it. 284 * Take comfort from the fact that the ifnet struct is part of our 285 * private info and can't go away while we are queued. 286 * [Though we don't know it is still there now....] 287 * it is possible we don't gain anything from this because 288 * we would like to get the mbuf and queue it as data 289 * somehow, but we can't and if we did would we solve anything? 290 */ 291 static void 292 ng_eiface_start(struct ifnet *ifp) 293 { 294 const priv_p priv = (priv_p)ifp->if_softc; 295 296 /* Don't do anything if output is active */ 297 if (ifp->if_drv_flags & IFF_DRV_OACTIVE) 298 return; 299 300 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 301 302 if (ng_send_fn(priv->node, NULL, &ng_eiface_start2, ifp, 0) != 0) 303 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 304 } 305 306 #ifdef DEBUG 307 /* 308 * Display an ioctl to the virtual interface 309 */ 310 311 static void 312 ng_eiface_print_ioctl(struct ifnet *ifp, int command, caddr_t data) 313 { 314 char *str; 315 316 switch (command & IOC_DIRMASK) { 317 case IOC_VOID: 318 str = "IO"; 319 break; 320 case IOC_OUT: 321 str = "IOR"; 322 break; 323 case IOC_IN: 324 str = "IOW"; 325 break; 326 case IOC_INOUT: 327 str = "IORW"; 328 break; 329 default: 330 str = "IO??"; 331 } 332 log(LOG_DEBUG, "%s: %s('%c', %d, char[%d])\n", 333 ifp->if_xname, 334 str, 335 IOCGROUP(command), 336 command & 0xff, 337 IOCPARM_LEN(command)); 338 } 339 #endif /* DEBUG */ 340 341 /* 342 * ifmedia stuff 343 */ 344 static int 345 ng_eiface_mediachange(struct ifnet *ifp) 346 { 347 const priv_p priv = (priv_p)ifp->if_softc; 348 struct ifmedia *ifm = &priv->media; 349 350 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 351 return (EINVAL); 352 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) 353 ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T); 354 else 355 ifp->if_baudrate = ifmedia_baudrate(ifm->ifm_media); 356 357 return (0); 358 } 359 360 static void 361 ng_eiface_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 362 { 363 const priv_p priv = (priv_p)ifp->if_softc; 364 struct ifmedia *ifm = &priv->media; 365 366 if (ifm->ifm_cur->ifm_media == (IFM_ETHER | IFM_AUTO) && 367 (priv->link_status & IFM_ACTIVE)) 368 ifmr->ifm_active = IFM_ETHER | IFM_1000_T | IFM_FDX; 369 else 370 ifmr->ifm_active = ifm->ifm_cur->ifm_media; 371 ifmr->ifm_status = priv->link_status; 372 373 return; 374 } 375 376 /************************************************************************ 377 NETGRAPH NODE STUFF 378 ************************************************************************/ 379 380 /* 381 * Constructor for a node 382 */ 383 static int 384 ng_eiface_constructor(node_p node) 385 { 386 struct ifnet *ifp; 387 priv_p priv; 388 struct ether_addr eaddr; 389 390 /* Allocate node and interface private structures */ 391 priv = malloc(sizeof(*priv), M_NETGRAPH, M_WAITOK | M_ZERO); 392 393 ifp = priv->ifp = if_alloc(IFT_ETHER); 394 if (ifp == NULL) { 395 free(priv, M_NETGRAPH); 396 return (ENOSPC); 397 } 398 399 /* Link them together */ 400 ifp->if_softc = priv; 401 402 /* Get an interface unit number */ 403 priv->unit = alloc_unr(V_ng_eiface_unit); 404 405 /* Link together node and private info */ 406 NG_NODE_SET_PRIVATE(node, priv); 407 priv->node = node; 408 409 /* Initialize interface structure */ 410 if_initname(ifp, NG_EIFACE_EIFACE_NAME, priv->unit); 411 ifp->if_init = ng_eiface_init; 412 ifp->if_output = ether_output; 413 ifp->if_start = ng_eiface_start; 414 ifp->if_ioctl = ng_eiface_ioctl; 415 ifp->if_snd.ifq_maxlen = ifqmaxlen; 416 ifp->if_flags = (IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST); 417 ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU; 418 ifp->if_capenable = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU; 419 ifmedia_init(&priv->media, 0, ng_eiface_mediachange, 420 ng_eiface_mediastatus); 421 ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T, 0, NULL); 422 ifmedia_add(&priv->media, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL); 423 ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX, 0, NULL); 424 ifmedia_add(&priv->media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL); 425 ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T, 0, NULL); 426 ifmedia_add(&priv->media, IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL); 427 ifmedia_add(&priv->media, IFM_ETHER | IFM_10G_T | IFM_FDX, 0, NULL); 428 ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO, 0, NULL); 429 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO); 430 priv->link_status = IFM_AVALID; 431 432 /* Give this node the same name as the interface (if possible) */ 433 if (ng_name_node(node, ifp->if_xname) != 0) 434 log(LOG_WARNING, "%s: can't acquire netgraph name\n", 435 ifp->if_xname); 436 437 /* Attach the interface */ 438 ether_gen_addr(ifp, &eaddr); 439 ether_ifattach(ifp, eaddr.octet); 440 ifp->if_baudrate = ifmedia_baudrate(IFM_ETHER | IFM_1000_T); 441 442 /* Done */ 443 return (0); 444 } 445 446 /* 447 * Give our ok for a hook to be added 448 */ 449 static int 450 ng_eiface_newhook(node_p node, hook_p hook, const char *name) 451 { 452 priv_p priv = NG_NODE_PRIVATE(node); 453 struct ifnet *ifp = priv->ifp; 454 455 if (strcmp(name, NG_EIFACE_HOOK_ETHER)) 456 return (EPFNOSUPPORT); 457 if (priv->ether != NULL) 458 return (EISCONN); 459 priv->ether = hook; 460 NG_HOOK_SET_PRIVATE(hook, &priv->ether); 461 NG_HOOK_SET_TO_INBOUND(hook); 462 463 priv->link_status |= IFM_ACTIVE; 464 CURVNET_SET_QUIET(ifp->if_vnet); 465 if_link_state_change(ifp, LINK_STATE_UP); 466 CURVNET_RESTORE(); 467 468 return (0); 469 } 470 471 /* 472 * Receive a control message 473 */ 474 static int 475 ng_eiface_rcvmsg(node_p node, item_p item, hook_p lasthook) 476 { 477 const priv_p priv = NG_NODE_PRIVATE(node); 478 struct ifnet *const ifp = priv->ifp; 479 struct ng_mesg *resp = NULL; 480 int error = 0; 481 struct ng_mesg *msg; 482 483 NGI_GET_MSG(item, msg); 484 switch (msg->header.typecookie) { 485 case NGM_EIFACE_COOKIE: 486 switch (msg->header.cmd) { 487 488 case NGM_EIFACE_SET: 489 { 490 if (msg->header.arglen != ETHER_ADDR_LEN) { 491 error = EINVAL; 492 break; 493 } 494 error = if_setlladdr(priv->ifp, 495 (u_char *)msg->data, ETHER_ADDR_LEN); 496 break; 497 } 498 499 case NGM_EIFACE_GET_IFNAME: 500 NG_MKRESPONSE(resp, msg, IFNAMSIZ, M_NOWAIT); 501 if (resp == NULL) { 502 error = ENOMEM; 503 break; 504 } 505 strlcpy(resp->data, ifp->if_xname, IFNAMSIZ); 506 break; 507 508 case NGM_EIFACE_GET_IFADDRS: 509 { 510 struct epoch_tracker et; 511 struct ifaddr *ifa; 512 caddr_t ptr; 513 int buflen; 514 515 /* Determine size of response and allocate it */ 516 buflen = 0; 517 NET_EPOCH_ENTER(et); 518 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) 519 buflen += SA_SIZE(ifa->ifa_addr); 520 NG_MKRESPONSE(resp, msg, buflen, M_NOWAIT); 521 if (resp == NULL) { 522 NET_EPOCH_EXIT(et); 523 error = ENOMEM; 524 break; 525 } 526 527 /* Add addresses */ 528 ptr = resp->data; 529 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { 530 const int len = SA_SIZE(ifa->ifa_addr); 531 532 if (buflen < len) { 533 log(LOG_ERR, "%s: len changed?\n", 534 ifp->if_xname); 535 break; 536 } 537 bcopy(ifa->ifa_addr, ptr, len); 538 ptr += len; 539 buflen -= len; 540 } 541 NET_EPOCH_EXIT(et); 542 break; 543 } 544 545 default: 546 error = EINVAL; 547 break; 548 } /* end of inner switch() */ 549 break; 550 case NGM_FLOW_COOKIE: 551 CURVNET_SET_QUIET(ifp->if_vnet); 552 switch (msg->header.cmd) { 553 case NGM_LINK_IS_UP: 554 priv->link_status |= IFM_ACTIVE; 555 if_link_state_change(ifp, LINK_STATE_UP); 556 break; 557 case NGM_LINK_IS_DOWN: 558 priv->link_status &= ~IFM_ACTIVE; 559 if_link_state_change(ifp, LINK_STATE_DOWN); 560 break; 561 default: 562 break; 563 } 564 CURVNET_RESTORE(); 565 break; 566 default: 567 error = EINVAL; 568 break; 569 } 570 NG_RESPOND_MSG(error, node, item, resp); 571 NG_FREE_MSG(msg); 572 return (error); 573 } 574 575 /* 576 * Receive data from a hook. Pass the packet to the ether_input routine. 577 */ 578 static int 579 ng_eiface_rcvdata(hook_p hook, item_p item) 580 { 581 const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook)); 582 struct ifnet *const ifp = priv->ifp; 583 struct mbuf *m; 584 585 NGI_GET_M(item, m); 586 NG_FREE_ITEM(item); 587 588 if (!((ifp->if_flags & IFF_UP) && 589 (ifp->if_drv_flags & IFF_DRV_RUNNING))) { 590 NG_FREE_M(m); 591 return (ENETDOWN); 592 } 593 594 if (m->m_len < ETHER_HDR_LEN) { 595 m = m_pullup(m, ETHER_HDR_LEN); 596 if (m == NULL) 597 return (EINVAL); 598 } 599 600 /* Note receiving interface */ 601 m->m_pkthdr.rcvif = ifp; 602 603 /* Update interface stats */ 604 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 605 606 (*ifp->if_input)(ifp, m); 607 608 /* Done */ 609 return (0); 610 } 611 612 /* 613 * Shutdown processing. 614 */ 615 static int 616 ng_eiface_rmnode(node_p node) 617 { 618 const priv_p priv = NG_NODE_PRIVATE(node); 619 struct ifnet *const ifp = priv->ifp; 620 621 /* 622 * the ifnet may be in a different vnet than the netgraph node, 623 * hence we have to change the current vnet context here. 624 */ 625 CURVNET_SET_QUIET(ifp->if_vnet); 626 ifmedia_removeall(&priv->media); 627 ether_ifdetach(ifp); 628 if_free(ifp); 629 CURVNET_RESTORE(); 630 free_unr(V_ng_eiface_unit, priv->unit); 631 free(priv, M_NETGRAPH); 632 NG_NODE_SET_PRIVATE(node, NULL); 633 NG_NODE_UNREF(node); 634 return (0); 635 } 636 637 /* 638 * Hook disconnection 639 */ 640 static int 641 ng_eiface_disconnect(hook_p hook) 642 { 643 const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook)); 644 645 priv->ether = NULL; 646 priv->link_status &= ~IFM_ACTIVE; 647 CURVNET_SET_QUIET(priv->ifp->if_vnet); 648 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 649 CURVNET_RESTORE(); 650 return (0); 651 } 652 653 /* 654 * Handle loading and unloading for this node type. 655 */ 656 static int 657 ng_eiface_mod_event(module_t mod, int event, void *data) 658 { 659 int error = 0; 660 661 switch (event) { 662 case MOD_LOAD: 663 case MOD_UNLOAD: 664 break; 665 default: 666 error = EOPNOTSUPP; 667 break; 668 } 669 return (error); 670 } 671 672 static void 673 vnet_ng_eiface_init(const void *unused) 674 { 675 676 V_ng_eiface_unit = new_unrhdr(0, 0xffff, NULL); 677 } 678 VNET_SYSINIT(vnet_ng_eiface_init, SI_SUB_PSEUDO, SI_ORDER_ANY, 679 vnet_ng_eiface_init, NULL); 680 681 static void 682 vnet_ng_eiface_uninit(const void *unused) 683 { 684 685 delete_unrhdr(V_ng_eiface_unit); 686 } 687 VNET_SYSUNINIT(vnet_ng_eiface_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY, 688 vnet_ng_eiface_uninit, NULL); 689