1 /*
2 * Copyright (c) 2000-2021 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28 /*
29 * Copyright (c) 1982, 1989, 1993
30 * The Regents of the University of California. All rights reserved.
31 *
32 * Redistribution and use in source and binary forms, with or without
33 * modification, are permitted provided that the following conditions
34 * are met:
35 * 1. Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * 2. Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in the
39 * documentation and/or other materials provided with the distribution.
40 * 3. All advertising materials mentioning features or use of this software
41 * must display the following acknowledgement:
42 * This product includes software developed by the University of
43 * California, Berkeley and its contributors.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 */
61
62 #include <sys/param.h>
63 #include <sys/systm.h>
64 #include <sys/kernel.h>
65 #include <sys/malloc.h>
66 #include <sys/mbuf.h>
67 #include <sys/socket.h>
68 #include <sys/sockio.h>
69 #include <sys/sysctl.h>
70
71 #include <pexpert/pexpert.h>
72
73 #define etherbroadcastaddr fugly
74 #include <net/if.h>
75 #include <net/route.h>
76 #include <net/if_llc.h>
77 #include <net/if_dl.h>
78 #include <net/if_types.h>
79 #include <net/if_ether.h>
80 #include <net/if_gif.h>
81 #include <netinet/if_ether.h>
82 #include <netinet/in.h> /* For M_LOOP */
83 #include <net/kpi_interface.h>
84 #include <net/kpi_protocol.h>
85 #undef etherbroadcastaddr
86
87 /*
88 #if INET
89 #include <netinet/in.h>
90 #include <netinet/in_var.h>
91 *
92 #include <netinet/in_systm.h>
93 #include <netinet/ip.h>
94 #endif
95 */
96 #include <net/ether_if_module.h>
97 #include <sys/socketvar.h>
98 #include <net/if_vlan_var.h>
99 #include <net/if_6lowpan_var.h>
100 #if BOND
101 #include <net/if_bond_internal.h>
102 #endif /* BOND */
103 #if IF_BRIDGE
104 #include <net/if_bridgevar.h>
105 #endif /* IF_BRIDGE */
106 #if IF_FAKE
107 #include <net/if_fake_var.h>
108 #endif /* IF_FAKE */
109 #if IF_HEADLESS
110 extern void if_headless_init(void);
111 #endif /* IF_HEADLESS */
112
113 #include <net/dlil.h>
114
115 SYSCTL_DECL(_net_link);
116 SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
117 "Ethernet");
118
119 struct en_desc {
120 u_int16_t type; /* Type of protocol stored in data */
121 u_int32_t protocol_family; /* Protocol family */
122 u_int32_t data[2]; /* Protocol data */
123 };
124
125 /* descriptors are allocated in blocks of ETHER_DESC_BLK_SIZE */
126 #if !XNU_TARGET_OS_OSX
127 #define ETHER_DESC_BLK_SIZE (2) /* IP, ARP */
128 #else /* XNU_TARGET_OS_OSX */
129 #define ETHER_DESC_BLK_SIZE (10)
130 #endif /* XNU_TARGET_OS_OSX */
131
132 /*
133 * Header for the demux list, hangs off of IFP at if_family_cookie
134 */
135 struct ether_desc_blk_str {
136 u_int32_t n_max_used;
137 u_int32_t n_count;
138 u_int32_t n_used;
139 struct en_desc block_ptr[1];
140 };
141
142 /* Size of the above struct before the array of struct en_desc */
143 #define ETHER_DESC_HEADER_SIZE \
144 ((size_t) offsetof(struct ether_desc_blk_str, block_ptr))
145
146 __private_extern__ u_char etherbroadcastaddr[ETHER_ADDR_LEN] =
147 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
148
149 /*
150 * Release all descriptor entries owned by this protocol (there may be several).
151 * Setting the type to 0 releases the entry. Eventually we should compact-out
152 * the unused entries.
153 */
154 int
ether_del_proto(ifnet_t ifp,protocol_family_t protocol_family)155 ether_del_proto(ifnet_t ifp, protocol_family_t protocol_family)
156 {
157 struct ether_desc_blk_str *desc_blk =
158 (struct ether_desc_blk_str *)ifp->if_family_cookie;
159 u_int32_t current = 0;
160 int found = 0;
161
162 if (desc_blk == NULL) {
163 return 0;
164 }
165
166 for (current = desc_blk->n_max_used; current > 0; current--) {
167 if (desc_blk->block_ptr[current - 1].protocol_family ==
168 protocol_family) {
169 found = 1;
170 desc_blk->block_ptr[current - 1].type = 0;
171 desc_blk->n_used--;
172 }
173 }
174
175 if (desc_blk->n_used == 0) {
176 u_int32_t size = desc_blk->n_count * sizeof(struct en_desc) +
177 ETHER_DESC_HEADER_SIZE;
178 kfree_data(ifp->if_family_cookie, size);
179 ifp->if_family_cookie = 0;
180 } else {
181 /* Decrement n_max_used */
182 for (; desc_blk->n_max_used > 0 &&
183 desc_blk->block_ptr[desc_blk->n_max_used - 1].type == 0;
184 desc_blk->n_max_used--) {
185 ;
186 }
187 }
188
189 return 0;
190 }
191
192 static int
ether_add_proto_internal(struct ifnet * ifp,protocol_family_t protocol,const struct ifnet_demux_desc * demux)193 ether_add_proto_internal(struct ifnet *ifp, protocol_family_t protocol,
194 const struct ifnet_demux_desc *demux)
195 {
196 struct en_desc *ed;
197 struct ether_desc_blk_str *desc_blk =
198 (struct ether_desc_blk_str *)ifp->if_family_cookie;
199 u_int32_t i;
200
201 switch (demux->type) {
202 /* These types are supported */
203 /* Top three are preferred */
204 case DLIL_DESC_ETYPE2:
205 if (demux->datalen != 2) {
206 return EINVAL;
207 }
208 break;
209
210 case DLIL_DESC_SAP:
211 if (demux->datalen != 3) {
212 return EINVAL;
213 }
214 break;
215
216 case DLIL_DESC_SNAP:
217 if (demux->datalen != 5) {
218 return EINVAL;
219 }
220 break;
221
222 default:
223 return ENOTSUP;
224 }
225
226 /* Verify a matching descriptor does not exist */
227 if (desc_blk != NULL) {
228 switch (demux->type) {
229 case DLIL_DESC_ETYPE2:
230 for (i = 0; i < desc_blk->n_max_used; i++) {
231 if (desc_blk->block_ptr[i].type ==
232 DLIL_DESC_ETYPE2 &&
233 desc_blk->block_ptr[i].data[0] ==
234 *(u_int16_t*)demux->data) {
235 return EADDRINUSE;
236 }
237 }
238 break;
239 case DLIL_DESC_SAP:
240 case DLIL_DESC_SNAP:
241 for (i = 0; i < desc_blk->n_max_used; i++) {
242 if (desc_blk->block_ptr[i].type ==
243 demux->type &&
244 bcmp(desc_blk->block_ptr[i].data,
245 demux->data, demux->datalen) == 0) {
246 return EADDRINUSE;
247 }
248 }
249 break;
250 }
251 }
252
253 /* Check for case where all of the descriptor blocks are in use */
254 if (desc_blk == NULL || desc_blk->n_used == desc_blk->n_count) {
255 struct ether_desc_blk_str *tmp;
256 u_int32_t new_count = ETHER_DESC_BLK_SIZE;
257 u_int32_t new_size;
258 u_int32_t old_size = 0;
259
260 i = 0;
261
262 if (desc_blk) {
263 new_count += desc_blk->n_count;
264 old_size = desc_blk->n_count * sizeof(struct en_desc) +
265 ETHER_DESC_HEADER_SIZE;
266 i = desc_blk->n_used;
267 }
268
269 new_size = new_count * sizeof(struct en_desc) +
270 ETHER_DESC_HEADER_SIZE;
271
272 tmp = (struct ether_desc_blk_str *)kalloc_data(new_size, Z_WAITOK);
273 if (tmp == NULL) {
274 /*
275 * Remove any previous descriptors set in the call.
276 */
277 return ENOMEM;
278 }
279
280 bzero(((char *)tmp) + old_size, new_size - old_size);
281 if (desc_blk) {
282 bcopy(desc_blk, tmp, old_size);
283 kfree_data(desc_blk, old_size);
284 }
285 desc_blk = tmp;
286 ifp->if_family_cookie = (uintptr_t)desc_blk;
287 desc_blk->n_count = new_count;
288 } else {
289 /* Find a free entry */
290 for (i = 0; i < desc_blk->n_count; i++) {
291 if (desc_blk->block_ptr[i].type == 0) {
292 break;
293 }
294 }
295 }
296
297 /* Bump n_max_used if appropriate */
298 if (i + 1 > desc_blk->n_max_used) {
299 desc_blk->n_max_used = i + 1;
300 }
301
302 ed = &desc_blk->block_ptr[i];
303 ed->protocol_family = protocol;
304 ed->data[0] = 0;
305 ed->data[1] = 0;
306
307 switch (demux->type) {
308 case DLIL_DESC_ETYPE2:
309 /* 2 byte ethernet raw protocol type is at native_type */
310 /* prtocol must be in network byte order */
311 ed->type = DLIL_DESC_ETYPE2;
312 ed->data[0] = *(u_int16_t*)demux->data;
313 break;
314
315 case DLIL_DESC_SAP:
316 ed->type = DLIL_DESC_SAP;
317 bcopy(demux->data, &ed->data[0], 3);
318 break;
319
320 case DLIL_DESC_SNAP: {
321 u_int8_t* pDest = ((u_int8_t*)&ed->data[0]) + 3;
322 ed->type = DLIL_DESC_SNAP;
323 bcopy(demux->data, pDest, 5);
324 break;
325 }
326 }
327
328 desc_blk->n_used++;
329
330 return 0;
331 }
332
333 int
ether_add_proto(ifnet_t ifp,protocol_family_t protocol,const struct ifnet_demux_desc * demux_list,u_int32_t demux_count)334 ether_add_proto(ifnet_t ifp, protocol_family_t protocol,
335 const struct ifnet_demux_desc *demux_list, u_int32_t demux_count)
336 {
337 int error = 0;
338 u_int32_t i;
339
340 for (i = 0; i < demux_count; i++) {
341 error = ether_add_proto_internal(ifp, protocol, &demux_list[i]);
342 if (error) {
343 ether_del_proto(ifp, protocol);
344 break;
345 }
346 }
347
348 return error;
349 }
350
351 int
ether_demux(ifnet_t ifp,mbuf_t m,char * frame_header,protocol_family_t * protocol_family)352 ether_demux(ifnet_t ifp, mbuf_t m, char *frame_header,
353 protocol_family_t *protocol_family)
354 {
355 struct ether_header *eh = (struct ether_header *)(void *)frame_header;
356 u_short ether_type = eh->ether_type;
357 u_int16_t type;
358 u_int8_t *data;
359 u_int32_t i = 0;
360 struct ether_desc_blk_str *desc_blk =
361 (struct ether_desc_blk_str *)ifp->if_family_cookie;
362 u_int32_t maxd = desc_blk ? desc_blk->n_max_used : 0;
363 struct en_desc *ed = desc_blk ? desc_blk->block_ptr : NULL;
364 u_int32_t extProto1 = 0;
365 u_int32_t extProto2 = 0;
366
367 if (eh->ether_dhost[0] & 1) {
368 /* Check for broadcast */
369 if (_ether_cmp(etherbroadcastaddr, eh->ether_dhost) == 0) {
370 m->m_flags |= M_BCAST;
371 } else {
372 m->m_flags |= M_MCAST;
373 }
374 }
375
376 if (m->m_flags & M_HASFCS) {
377 /*
378 * If the M_HASFCS is set by the driver we want to make sure
379 * that we strip off the trailing FCS data before handing it
380 * up the stack.
381 */
382 m_adj(m, -ETHER_CRC_LEN);
383 m->m_flags &= ~M_HASFCS;
384 }
385
386 if ((eh->ether_dhost[0] & 1) == 0) {
387 /*
388 * When the driver is put into promiscuous mode we may receive
389 * unicast frames that are not intended for our interfaces.
390 * They are marked here as being promiscuous so the caller may
391 * dispose of them after passing the packets to any interface
392 * filters.
393 */
394 if (_ether_cmp(eh->ether_dhost, IF_LLADDR(ifp))) {
395 m->m_flags |= M_PROMISC;
396 }
397 }
398
399 /* check for IEEE 802.15.4 */
400 if (ether_type == htons(ETHERTYPE_IEEE802154)) {
401 *protocol_family = PF_802154;
402 return 0;
403 }
404
405 /* check for VLAN */
406 if ((m->m_pkthdr.csum_flags & CSUM_VLAN_TAG_VALID) != 0) {
407 if (EVL_VLANOFTAG(m->m_pkthdr.vlan_tag) != 0) {
408 *protocol_family = PF_VLAN;
409 return 0;
410 }
411 /* the packet is just priority-tagged, clear the bit */
412 m->m_pkthdr.csum_flags &= ~CSUM_VLAN_TAG_VALID;
413 } else if (ether_type == htons(ETHERTYPE_VLAN)) {
414 struct ether_vlan_header * evl;
415
416 evl = (struct ether_vlan_header *)(void *)frame_header;
417 if (m->m_len < ETHER_VLAN_ENCAP_LEN ||
418 ntohs(evl->evl_proto) == ETHERTYPE_VLAN ||
419 EVL_VLANOFTAG(ntohs(evl->evl_tag)) != 0) {
420 *protocol_family = PF_VLAN;
421 return 0;
422 }
423 /* the packet is just priority-tagged */
424
425 /* make the encapsulated ethertype the actual ethertype */
426 ether_type = evl->evl_encap_proto = evl->evl_proto;
427
428 /* remove the encapsulation header */
429 m->m_len -= ETHER_VLAN_ENCAP_LEN;
430 m->m_data += ETHER_VLAN_ENCAP_LEN;
431 m->m_pkthdr.len -= ETHER_VLAN_ENCAP_LEN;
432 m->m_pkthdr.csum_flags = 0; /* can't trust hardware checksum */
433 } else if (ether_type == htons(ETHERTYPE_ARP)) {
434 m->m_pkthdr.pkt_flags |= PKTF_INET_RESOLVE; /* ARP packet */
435 }
436 data = mtod(m, u_int8_t*);
437
438 /*
439 * Determine the packet's protocol type and stuff the protocol into
440 * longs for quick compares.
441 */
442 if (ntohs(ether_type) <= 1500) {
443 bcopy(data, &extProto1, sizeof(u_int32_t));
444
445 /* SAP or SNAP */
446 if ((extProto1 & htonl(0xFFFFFF00)) == htonl(0xAAAA0300)) {
447 /* SNAP */
448 type = DLIL_DESC_SNAP;
449 bcopy(data + sizeof(u_int32_t), &extProto2,
450 sizeof(u_int32_t));
451 extProto1 &= htonl(0x000000FF);
452 } else {
453 type = DLIL_DESC_SAP;
454 extProto1 &= htonl(0xFFFFFF00);
455 }
456 } else {
457 type = DLIL_DESC_ETYPE2;
458 }
459
460 /*
461 * Search through the connected protocols for a match.
462 */
463 switch (type) {
464 case DLIL_DESC_ETYPE2:
465 for (i = 0; i < maxd; i++) {
466 if ((ed[i].type == type) &&
467 (ed[i].data[0] == ether_type)) {
468 *protocol_family = ed[i].protocol_family;
469 return 0;
470 }
471 }
472 break;
473
474 case DLIL_DESC_SAP:
475 for (i = 0; i < maxd; i++) {
476 if ((ed[i].type == type) &&
477 (ed[i].data[0] == extProto1)) {
478 *protocol_family = ed[i].protocol_family;
479 return 0;
480 }
481 }
482 break;
483
484 case DLIL_DESC_SNAP:
485 for (i = 0; i < maxd; i++) {
486 if ((ed[i].type == type) &&
487 (ed[i].data[0] == extProto1) &&
488 (ed[i].data[1] == extProto2)) {
489 *protocol_family = ed[i].protocol_family;
490 return 0;
491 }
492 }
493 break;
494 }
495
496 return ENOENT;
497 }
498
499 /*
500 * On embedded, ether_frameout is practicaly ether_frameout_extended.
501 * On non-embedded, ether_frameout has long been exposed as a public KPI,
502 * and therefore its signature must remain the same (without the pre- and
503 * postpend length parameters.)
504 */
505 #if KPI_INTERFACE_EMBEDDED
506 int
ether_frameout(struct ifnet * ifp,struct mbuf ** m,const struct sockaddr * ndest,const char * edst,const char * ether_type,u_int32_t * prepend_len,u_int32_t * postpend_len)507 ether_frameout(struct ifnet *ifp, struct mbuf **m,
508 const struct sockaddr *ndest, const char *edst,
509 const char *ether_type, u_int32_t *prepend_len, u_int32_t *postpend_len)
510 #else /* !KPI_INTERFACE_EMBEDDED */
511 int
512 ether_frameout(struct ifnet *ifp, struct mbuf **m,
513 const struct sockaddr *ndest, const char *edst,
514 const char *ether_type)
515 #endif /* KPI_INTERFACE_EMBEDDED */
516 {
517 #if KPI_INTERFACE_EMBEDDED
518 return ether_frameout_extended(ifp, m, ndest, edst, ether_type,
519 prepend_len, postpend_len);
520 #else /* !KPI_INTERFACE_EMBEDDED */
521 return ether_frameout_extended(ifp, m, ndest, edst, ether_type,
522 NULL, NULL);
523 #endif /* !KPI_INTERFACE_EMBEDDED */
524 }
525
526 /*
527 * Ethernet output routine.
528 * Encapsulate a packet of type family for the local net.
529 * Use trailer local net encapsulation if enough data in first
530 * packet leaves a multiple of 512 bytes of data in remainder.
531 */
532 int
ether_frameout_extended(struct ifnet * ifp,struct mbuf ** m,const struct sockaddr * ndest,const char * edst,const char * ether_type,u_int32_t * prepend_len,u_int32_t * postpend_len)533 ether_frameout_extended(struct ifnet *ifp, struct mbuf **m,
534 const struct sockaddr *ndest, const char *edst,
535 const char *ether_type, u_int32_t *prepend_len, u_int32_t *postpend_len)
536 {
537 struct ether_header *eh;
538 int hlen; /* link layer header length */
539
540 hlen = ETHER_HDR_LEN;
541
542 /*
543 * If a simplex interface, and the packet is being sent to our
544 * Ethernet address or a broadcast address, loopback a copy.
545 * XXX To make a simplex device behave exactly like a duplex
546 * device, we should copy in the case of sending to our own
547 * ethernet address (thus letting the original actually appear
548 * on the wire). However, we don't do that here for security
549 * reasons and compatibility with the original behavior.
550 */
551 if ((ifp->if_flags & IFF_SIMPLEX) &&
552 ((*m)->m_flags & M_LOOP) && lo_ifp != NULL) {
553 if ((*m)->m_flags & M_BCAST) {
554 struct mbuf *n = m_copy(*m, 0, (int)M_COPYALL);
555 if (n != NULL) {
556 dlil_output(lo_ifp, ndest->sa_family,
557 n, NULL, ndest, 0, NULL);
558 }
559 } else if (_ether_cmp(edst, IF_LLADDR(ifp)) == 0) {
560 dlil_output(lo_ifp, ndest->sa_family, *m,
561 NULL, ndest, 0, NULL);
562 return EJUSTRETURN;
563 }
564 }
565
566 /*
567 * Add local net header. If no space in first mbuf,
568 * allocate another.
569 */
570 M_PREPEND(*m, sizeof(struct ether_header), M_DONTWAIT, 0);
571 if (*m == NULL) {
572 return EJUSTRETURN;
573 }
574
575 if (prepend_len != NULL) {
576 *prepend_len = sizeof(struct ether_header);
577 }
578 if (postpend_len != NULL) {
579 *postpend_len = 0;
580 }
581
582 eh = mtod(*m, struct ether_header *);
583 (void) memcpy(&eh->ether_type, ether_type, sizeof(eh->ether_type));
584 (void) memcpy(eh->ether_dhost, edst, ETHER_ADDR_LEN);
585 ifnet_lladdr_copy_bytes(ifp, eh->ether_shost, ETHER_ADDR_LEN);
586
587 return 0;
588 }
589
590 errno_t
ether_check_multi(ifnet_t ifp,const struct sockaddr * proto_addr)591 ether_check_multi(ifnet_t ifp, const struct sockaddr *proto_addr)
592 {
593 #pragma unused(ifp)
594 errno_t result = EAFNOSUPPORT;
595 const u_char *e_addr;
596
597 /*
598 * AF_SPEC and AF_LINK don't require translation. We do
599 * want to verify that they specify a valid multicast.
600 */
601 switch (proto_addr->sa_family) {
602 case AF_UNSPEC:
603 e_addr = (const u_char*)&proto_addr->sa_data[0];
604 if ((e_addr[0] & 0x01) != 0x01) {
605 result = EADDRNOTAVAIL;
606 } else {
607 result = 0;
608 }
609 break;
610
611 case AF_LINK:
612 e_addr = CONST_LLADDR((const struct sockaddr_dl*)
613 (uintptr_t)(size_t)proto_addr);
614 if ((e_addr[0] & 0x01) != 0x01) {
615 result = EADDRNOTAVAIL;
616 } else {
617 result = 0;
618 }
619 break;
620 }
621
622 return result;
623 }
624
625 int
ether_ioctl(ifnet_t ifp,u_int32_t command,void * data)626 ether_ioctl(ifnet_t ifp, u_int32_t command, void *data)
627 {
628 #pragma unused(ifp, command, data)
629 return EOPNOTSUPP;
630 }
631
632 __private_extern__ int
ether_family_init(void)633 ether_family_init(void)
634 {
635 errno_t error = 0;
636
637 /* Register protocol registration functions */
638 if ((error = proto_register_plumber(PF_INET, APPLE_IF_FAM_ETHERNET,
639 ether_attach_inet, ether_detach_inet)) != 0) {
640 printf("proto_register_plumber failed for PF_INET error=%d\n",
641 error);
642 goto done;
643 }
644 if ((error = proto_register_plumber(PF_INET6, APPLE_IF_FAM_ETHERNET,
645 ether_attach_inet6, ether_detach_inet6)) != 0) {
646 printf("proto_register_plumber failed for PF_INET6 error=%d\n",
647 error);
648 goto done;
649 }
650 #if VLAN
651 vlan_family_init();
652 #endif /* VLAN */
653 #if BOND
654 bond_family_init();
655 #endif /* BOND */
656 #if IF_BRIDGE
657 bridgeattach(0);
658 #endif /* IF_BRIDGE */
659 #if IF_FAKE
660 if_fake_init();
661 #endif /* IF_FAKE */
662 #if IF_HEADLESS
663 if_headless_init();
664 #endif /* IF_HEADLESS */
665 #if SIXLOWPAN
666 sixlowpan_family_init();
667 #endif /* VLAN */
668 done:
669
670 return error;
671 }
672