[apple/xnu.git] / bsd / net / ether_if_module.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
 */
/*
 * Copyright (c) 1982, 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */


#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>

#include <net/if.h>
#include <net/route.h>
#include <net/if_llc.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_ether.h>
#include <netinet/if_ether.h>
#include <netinet/in.h>	/* For M_LOOP */

/*
#if INET
#include <netinet/in.h>
#include <netinet/in_var.h>

#include <netinet/in_systm.h>
#include <netinet/ip.h>
#endif
*/

#include <sys/socketvar.h>
#include <net/if_vlan_var.h>
#include <net/if_bond_var.h>

#include <net/dlil.h>

#if LLC && CCITT
extern struct ifqueue pkintrq;
#endif

/* General stuff from if_ethersubr.c - may not need some of it */

#include <netat/at_pat.h>
#if NETAT
extern struct ifqueue atalkintrq;
#endif


#if BRIDGE
#include <net/bridge.h>
#endif

#define memcpy(x,y,z)	bcopy(y, x, z)


SYSCTL_DECL(_net_link);
SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet");

struct en_desc {
	u_int16_t	type;			/* Type of protocol stored in data */
	u_long 		protocol_family;	/* Protocol family */
	u_long		data[2];		/* Protocol data */
};
/* descriptors are allocated in blocks of ETHER_DESC_BLK_SIZE */
#define ETHER_DESC_BLK_SIZE (10) 

/*
 * Header for the demux list, hangs off of IFP at family_cookie
 */

struct ether_desc_blk_str {
	u_long  n_max_used;
	u_long	n_count;
	u_long	n_used;
	struct en_desc  block_ptr[1];
};
/* Size of the above struct before the array of struct en_desc */
#define ETHER_DESC_HEADER_SIZE	((size_t)&(((struct ether_desc_blk_str*)0)->block_ptr[0]))
__private_extern__ u_char	etherbroadcastaddr[ETHER_ADDR_LEN] =
								{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };

int ether_add_proto_old(struct ifnet *ifp, u_long protocol_family, struct ddesc_head_str *desc_head);
int ether_add_if(struct ifnet *ifp);
int ether_del_if(struct ifnet *ifp);
int ether_init_if(struct ifnet *ifp);
int ether_family_init(void);

/*
 * Release all descriptor entries owned by this protocol (there may be several).
 * Setting the type to 0 releases the entry. Eventually we should compact-out
 * the unused entries.
 */
int
ether_del_proto(
	ifnet_t ifp,
	protocol_family_t protocol_family)
{
	struct ether_desc_blk_str *desc_blk = (struct ether_desc_blk_str *)ifp->family_cookie;
	u_long	current = 0;
	int found = 0;
	
	if (desc_blk == NULL)
		return 0;
	
	for (current = desc_blk->n_max_used; current > 0; current--) {
		if (desc_blk->block_ptr[current - 1].protocol_family == protocol_family) {
			found = 1;
			desc_blk->block_ptr[current - 1].type = 0;
			desc_blk->n_used--;
		}
	}
	
	if (desc_blk->n_used == 0) {
		FREE(ifp->family_cookie, M_IFADDR);
		ifp->family_cookie = 0;
	}
	else {
		/* Decrement n_max_used */
		for (; desc_blk->n_max_used > 0 && desc_blk->block_ptr[desc_blk->n_max_used - 1].type == 0; desc_blk->n_max_used--)
			;
	}
	
	return 0;
 }


static int
ether_add_proto_internal(
	struct ifnet					*ifp,
	protocol_family_t				protocol,
	const struct ifnet_demux_desc	*demux)
{
	struct en_desc *ed;
	struct ether_desc_blk_str *desc_blk = (struct ether_desc_blk_str *)ifp->family_cookie;
	u_int32_t i;
	
	switch (demux->type) {
		/* These types are supported */
		/* Top three are preferred */
		case DLIL_DESC_ETYPE2:
			if (demux->datalen != 2) {
				return EINVAL;
			}
			break;
		
		case DLIL_DESC_SAP:
			if (demux->datalen != 3) {
				return EINVAL;
			}
			break;
		
		case DLIL_DESC_SNAP:
			if (demux->datalen != 5) {
				return EINVAL;
			}
			break;
			
		default:
			return ENOTSUP;
	}
	
	// Verify a matching descriptor does not exist.
	if (desc_blk != NULL) {
		switch (demux->type) {
			case DLIL_DESC_ETYPE2:
				for (i = 0; i < desc_blk->n_max_used; i++) {
					if (desc_blk->block_ptr[i].type == DLIL_DESC_ETYPE2 &&
						desc_blk->block_ptr[i].data[0] ==
						*(u_int16_t*)demux->data) {
						return EADDRINUSE;
					}
				}
				break;
			case DLIL_DESC_SAP:
			case DLIL_DESC_SNAP:
				for (i = 0; i < desc_blk->n_max_used; i++) {
					if (desc_blk->block_ptr[i].type == demux->type &&
						bcmp(desc_blk->block_ptr[i].data, demux->data,
							 demux->datalen) == 0) {
						return EADDRINUSE;
					}
				}
				break;
		}
	}
	
	// Check for case where all of the descriptor blocks are in use
	if (desc_blk == NULL || desc_blk->n_used == desc_blk->n_count) {
		struct ether_desc_blk_str *tmp;
		u_long	new_count = ETHER_DESC_BLK_SIZE;
		u_long	new_size;
		u_long	old_size = 0;
		
		i = 0;
		
		if (desc_blk) {
			new_count += desc_blk->n_count;
			old_size = desc_blk->n_count * sizeof(struct en_desc) + ETHER_DESC_HEADER_SIZE;
			i = desc_blk->n_used;
		}
		
		new_size = new_count * sizeof(struct en_desc) + ETHER_DESC_HEADER_SIZE;
		
		tmp = _MALLOC(new_size, M_IFADDR, M_WAITOK);
		if (tmp  == 0) {
			/*
			 * Remove any previous descriptors set in the call.
			 */
			return ENOMEM;
		}
		
		bzero(tmp + old_size, new_size - old_size);
		if (desc_blk) {
			bcopy(desc_blk, tmp, old_size);
			FREE(desc_blk, M_IFADDR);
		}
		desc_blk = tmp;
		ifp->family_cookie = (u_long)desc_blk;
		desc_blk->n_count = new_count;
	}
	else {
		/* Find a free entry */
		for (i = 0; i < desc_blk->n_count; i++) {
			if (desc_blk->block_ptr[i].type == 0) {
				break;
			}
		}
	}
	
	/* Bump n_max_used if appropriate */
	if (i + 1 > desc_blk->n_max_used) {
		desc_blk->n_max_used = i + 1;
	}
	
	ed = &desc_blk->block_ptr[i];
	ed->protocol_family = protocol;
	ed->data[0] = 0;
	ed->data[1] = 0;
	
	switch (demux->type) {
		case DLIL_DESC_ETYPE2:
			/* 2 byte ethernet raw protocol type is at native_type */
			/* prtocol must be in network byte order */
			ed->type = DLIL_DESC_ETYPE2;
			ed->data[0] = *(u_int16_t*)demux->data;
			break;
		
		case DLIL_DESC_SAP:
			ed->type = DLIL_DESC_SAP;
			bcopy(demux->data, &ed->data[0], 3);
			break;
		
		case DLIL_DESC_SNAP: {
			u_int8_t*	pDest = ((u_int8_t*)&ed->data[0]) + 3;
			ed->type = DLIL_DESC_SNAP;
			bcopy(demux->data, pDest, 5);
			}
			break;
	}
	
	desc_blk->n_used++;
	
	return 0;
}

int
ether_add_proto(
	ifnet_t				ifp,
	protocol_family_t	protocol,
	const struct ifnet_demux_desc *demux_list,
	u_int32_t			demux_count)
{
	int			error = 0;
	u_int32_t	i;
	
	for (i = 0; i < demux_count; i++) {
		error = ether_add_proto_internal(ifp, protocol, &demux_list[i]);
		if (error) {
			ether_del_proto(ifp, protocol);
			break;
		}
	}
	
	return error;
}

__private_extern__ int
ether_add_proto_old(
	struct ifnet *ifp,
	u_long protocol_family,
	struct ddesc_head_str *desc_head)
{
	struct dlil_demux_desc  *desc;
	int error = 0;
	
	TAILQ_FOREACH(desc, desc_head, next) {
		struct ifnet_demux_desc dmx;
		int swapped = 0;
		
		// Convert dlil_demux_desc to ifnet_demux_desc
		dmx.type = desc->type;
		dmx.datalen = desc->variants.native_type_length;
		dmx.data = desc->native_type;
		
#ifdef DLIL_DESC_RAW
		if (dmx.type == DLIL_DESC_RAW) {
			swapped = 1;
			dmx.type = DLIL_DESC_ETYPE2;
			dmx.datalen = 2;
			*(u_int16_t*)dmx.data = htons(*(u_int16_t*)dmx.data);
		}
#endif
		
		error = ether_add_proto_internal(ifp, protocol_family, &dmx);
		if (swapped) {
			*(u_int16_t*)dmx.data = ntohs(*(u_int16_t*)dmx.data);
			swapped = 0;
		}
		if (error) {
			ether_del_proto(ifp, protocol_family);
			break;
		}
	}
	
	return error;
} 


static int
ether_shutdown(void)
{
    return 0;
}


int
ether_demux(
	ifnet_t				ifp,
	mbuf_t				m,
	char				*frame_header,
	protocol_family_t	*protocol_family)
{
	struct ether_header *eh = (struct ether_header *)frame_header;
	u_short			ether_type = eh->ether_type;
	u_int16_t		type;
	u_int8_t		*data;
	u_long			i = 0;
	struct ether_desc_blk_str *desc_blk = (struct ether_desc_blk_str *)ifp->family_cookie;
	u_long			maxd = desc_blk ? desc_blk->n_max_used : 0;
	struct en_desc	*ed = desc_blk ? desc_blk->block_ptr : NULL;
	u_int32_t		extProto1 = 0;
	u_int32_t		extProto2 = 0;

	if (eh->ether_dhost[0] & 1) {
		/* Check for broadcast */
		if (*(u_int32_t*)eh->ether_dhost == 0xFFFFFFFF &&
			*(u_int16_t*)(eh->ether_dhost + sizeof(u_int32_t)) == 0xFFFF)
			m->m_flags |= M_BCAST;
		else
			m->m_flags |= M_MCAST;
	}

	if (ifp->if_eflags & IFEF_BOND) {
		/* if we're bonded, bond "protocol" gets all the packets */
		*protocol_family = PF_BOND;
		return (0);
	}

	if ((eh->ether_dhost[0] & 1) == 0) {
		/*
 		* When the driver is put into promiscuous mode we may receive unicast
		* frames that are not intended for our interfaces.  They are marked here
		* as being promiscuous so the caller may dispose of them after passing
		* the packets to any interface filters.
		*/
		#define ETHER_CMP(x, y) ( ((u_int16_t *) x)[0] != ((u_int16_t *) y)[0] || \
								  ((u_int16_t *) x)[1] != ((u_int16_t *) y)[1] || \
								  ((u_int16_t *) x)[2] != ((u_int16_t *) y)[2] )
		
		if (ETHER_CMP(eh->ether_dhost, ifnet_lladdr(ifp))) {
			m->m_flags |= M_PROMISC;
		}
	}
	
	/* Quick check for VLAN */
	if ((m->m_pkthdr.csum_flags & CSUM_VLAN_TAG_VALID) != 0 ||
		ether_type == htons(ETHERTYPE_VLAN)) {
		*protocol_family = PF_VLAN;
		return 0;
	}
	
	data = mtod(m, u_int8_t*);
	
	/*
	* Determine the packet's protocol type and stuff the protocol into
	* longs for quick compares.
	*/
	
	if (ntohs(ether_type) <= 1500) {
		extProto1 = *(u_int32_t*)data;
		
		// SAP or SNAP
		if ((extProto1 & htonl(0xFFFFFF00)) == htonl(0xAAAA0300)) {
			// SNAP
			type = DLIL_DESC_SNAP;
			extProto2 = *(u_int32_t*)(data + sizeof(u_int32_t));
			extProto1 &= htonl(0x000000FF);
		} else {
			type = DLIL_DESC_SAP;
			extProto1 &= htonl(0xFFFFFF00);
		}
	} else {
		type = DLIL_DESC_ETYPE2;
	}
	
	/* 
	* Search through the connected protocols for a match. 
	*/
	
	switch (type) {
		case DLIL_DESC_ETYPE2:
			for (i = 0; i < maxd; i++) {
				if ((ed[i].type == type) && (ed[i].data[0] == ether_type)) {
					*protocol_family = ed[i].protocol_family;
					return 0;
				}
			}
			break;
		
		case DLIL_DESC_SAP:
			for (i = 0; i < maxd; i++) {
				if ((ed[i].type == type) && (ed[i].data[0] == extProto1)) {
					*protocol_family = ed[i].protocol_family;
					return 0;
				}
			}
			break;
		
		case DLIL_DESC_SNAP:
			for (i = 0; i < maxd; i++) {
				if ((ed[i].type == type) && (ed[i].data[0] == extProto1) &&
					(ed[i].data[1] == extProto2)) {
					*protocol_family = ed[i].protocol_family;
					return 0;
				}
			}
		break;
	}
	
	return ENOENT;
}			

/*
 * Ethernet output routine.
 * Encapsulate a packet of type family for the local net.
 * Use trailer local net encapsulation if enough data in first
 * packet leaves a multiple of 512 bytes of data in remainder.
 */
int
ether_frameout(
	struct ifnet			*ifp,
	struct mbuf				**m,
	const struct sockaddr	*ndest,
	const char				*edst,
	const char				*ether_type)
{
	struct ether_header *eh;
	int hlen;	/* link layer header length */

	hlen = ETHER_HDR_LEN;

	/*
	 * If a simplex interface, and the packet is being sent to our
	 * Ethernet address or a broadcast address, loopback a copy.
	 * XXX To make a simplex device behave exactly like a duplex
	 * device, we should copy in the case of sending to our own
	 * ethernet address (thus letting the original actually appear
	 * on the wire). However, we don't do that here for security
	 * reasons and compatibility with the original behavior.
	 */
	if ((ifp->if_flags & IFF_SIMPLEX) &&
	    ((*m)->m_flags & M_LOOP)) {
	    if (lo_ifp) {
            if ((*m)->m_flags & M_BCAST) {
                struct mbuf *n = m_copy(*m, 0, (int)M_COPYALL);
                if (n != NULL)
                    dlil_output(lo_ifp, ndest->sa_family, n, 0, ndest, 0);
            }
            else {
                if (bcmp(edst, ifnet_lladdr(ifp), ETHER_ADDR_LEN) == 0) {
                    dlil_output(lo_ifp, ndest->sa_family, *m, 0, ndest, 0);
                    return EJUSTRETURN;
                }
            }
	    }
	}
    
	/*
	 * Add local net header.  If no space in first mbuf,
	 * allocate another.
	 */
	M_PREPEND(*m, sizeof (struct ether_header), M_DONTWAIT);
	if (*m == 0) {
	    return (EJUSTRETURN);
	}


	eh = mtod(*m, struct ether_header *);
	(void)memcpy(&eh->ether_type, ether_type,
		sizeof(eh->ether_type));
 	(void)memcpy(eh->ether_dhost, edst, 6);
 	ifnet_lladdr_copy_bytes(ifp, eh->ether_shost, ETHER_ADDR_LEN);

	return 0;
}


__private_extern__ int
ether_add_if(struct ifnet *ifp)
{
	ifp->if_framer = ether_frameout;
	ifp->if_demux = ether_demux;
    
    return 0;
}

__private_extern__ int
ether_del_if(struct ifnet *ifp)
{
	if (ifp->family_cookie) {
		FREE(ifp->family_cookie, M_IFADDR);
		return 0;
	}
	else
		return ENOENT;
}

__private_extern__ int
ether_init_if(struct ifnet *ifp)
{
	/*
	 * Copy ethernet address out of old style arpcom. New
	 * interfaces created using the KPIs will not have an
	 * interface family. Those interfaces will have the
	 * lladdr passed in when the interface is created.
	 */
	u_char *enaddr = ((u_char*)ifp) + sizeof(struct ifnet);
	ifnet_set_lladdr(ifp, enaddr, 6);
	bzero(enaddr, 6);
	
    return 0;
}


errno_t
ether_check_multi(
	ifnet_t					ifp,
	const struct sockaddr	*proto_addr)
{
	errno_t	result = EAFNOSUPPORT;
	const u_char *e_addr;
	
	/*
	 * AF_SPEC and AF_LINK don't require translation. We do
	 * want to verify that they specify a valid multicast.
	 */
	switch(proto_addr->sa_family) {
		case AF_UNSPEC:
			e_addr = (const u_char*)&proto_addr->sa_data[0];
			if ((e_addr[0] & 0x01) != 0x01)
				result = EADDRNOTAVAIL;
			else
				result = 0;
			break;
		
		case AF_LINK:
			e_addr = CONST_LLADDR((const struct sockaddr_dl*)proto_addr); 
			if ((e_addr[0] & 0x01) != 0x01)
				result = EADDRNOTAVAIL;
			else
				result = 0;
			break;
	}
	
	return result;
}

int
ether_ioctl(
    __unused ifnet_t	ifp,
    __unused u_int32_t	command,
    __unused void*		data)
{
	return EOPNOTSUPP;
}


extern int ether_attach_inet(struct ifnet *ifp, u_long proto_family);
extern int ether_detach_inet(struct ifnet *ifp, u_long proto_family);
extern int ether_attach_inet6(struct ifnet *ifp, u_long proto_family);
extern int ether_detach_inet6(struct ifnet *ifp, u_long proto_family);

extern void kprintf(const char *, ...);

int ether_family_init(void)
{
    int  error=0;
    struct dlil_ifmod_reg_str  ifmod_reg;

    /* ethernet family is built-in, called from bsd_init */

    bzero(&ifmod_reg, sizeof(ifmod_reg));
    ifmod_reg.add_if = ether_add_if;
    ifmod_reg.del_if = ether_del_if;
    ifmod_reg.init_if = ether_init_if;
    ifmod_reg.add_proto = ether_add_proto_old;
    ifmod_reg.del_proto = ether_del_proto;
    ifmod_reg.ifmod_ioctl = ether_ioctl;
    ifmod_reg.shutdown    = ether_shutdown;

    if (dlil_reg_if_modules(APPLE_IF_FAM_ETHERNET, &ifmod_reg)) {
        printf("WARNING: ether_family_init -- Can't register if family modules\n");
        error = EIO;
	goto done;
    }

	/* Register protocol registration functions */

	if ((error = dlil_reg_proto_module(PF_INET, APPLE_IF_FAM_ETHERNET,
									  ether_attach_inet, ether_detach_inet)) != 0) {
		kprintf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
		goto done;
	}


	if ((error = dlil_reg_proto_module(PF_INET6, APPLE_IF_FAM_ETHERNET,
									  ether_attach_inet6, ether_detach_inet6)) != 0) {
		kprintf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
		goto done;
	}
	vlan_family_init();
	bond_family_init();

 done:

    return (error);
}
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
8ad349bb	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b	5	*
8ad349bb A	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
	10	* License may not be used to create, or enable the creation or
	11	* redistribution of, unlawful or unlicensed copies of an Apple operating
	12	* system, or to circumvent, violate, or enable the circumvention or
	13	* violation of, any terms of an Apple operating system software license
	14	* agreement.
	15	*
	16	* Please obtain a copy of the License at
	17	* http://www.opensource.apple.com/apsl/ and read it before using this
	18	* file.
	19	*
	20	* The Original Code and all software distributed under the License are
	21	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	22	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	23	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	24	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	25	* Please see the License for the specific language governing rights and
	26	* limitations under the License.
	27	*
	28	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
1c79356b A	29	*/
	30	/*
	31	* Copyright (c) 1982, 1989, 1993
	32	* The Regents of the University of California. All rights reserved.
	33	*
	34	* Redistribution and use in source and binary forms, with or without
	35	* modification, are permitted provided that the following conditions
	36	* are met:
	37	* 1. Redistributions of source code must retain the above copyright
	38	* notice, this list of conditions and the following disclaimer.
	39	* 2. Redistributions in binary form must reproduce the above copyright
	40	* notice, this list of conditions and the following disclaimer in the
	41	* documentation and/or other materials provided with the distribution.
	42	* 3. All advertising materials mentioning features or use of this software
	43	* must display the following acknowledgement:
	44	* This product includes software developed by the University of
	45	* California, Berkeley and its contributors.
	46	* 4. Neither the name of the University nor the names of its contributors
	47	* may be used to endorse or promote products derived from this software
	48	* without specific prior written permission.
	49	*
	50	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	51	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	52	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	53	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	54	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	55	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	56	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	57	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	58	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	59	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	60	* SUCH DAMAGE.
	61	*
	62	*/
	63
	64
	65
	66	#include <sys/param.h>
	67	#include <sys/systm.h>
	68	#include <sys/kernel.h>
	69	#include <sys/malloc.h>
	70	#include <sys/mbuf.h>
	71	#include <sys/socket.h>
	72	#include <sys/sockio.h>
	73	#include <sys/sysctl.h>
	74
	75	#include <net/if.h>
1c79356b A	76	#include <net/route.h>
	77	#include <net/if_llc.h>
	78	#include <net/if_dl.h>
	79	#include <net/if_types.h>
91447636	80	#include <net/if_ether.h>
1c79356b	81	#include <netinet/if_ether.h>
9bccf70c	82	#include <netinet/in.h> /* For M_LOOP */
1c79356b A	83
	84	/*
	85	#if INET
	86	#include <netinet/in.h>
	87	#include <netinet/in_var.h>
	88
	89	#include <netinet/in_systm.h>
	90	#include <netinet/ip.h>
	91	#endif
	92	*/
	93
	94	#include <sys/socketvar.h>
4a249263	95	#include <net/if_vlan_var.h>
91447636	96	#include <net/if_bond_var.h>
1c79356b A	97
	98	#include <net/dlil.h>
	99
1c79356b A	100	#if LLC && CCITT
	101	extern struct ifqueue pkintrq;
	102	#endif
	103
	104	/* General stuff from if_ethersubr.c - may not need some of it */
	105
	106	#include <netat/at_pat.h>
	107	#if NETAT
	108	extern struct ifqueue atalkintrq;
	109	#endif
	110
	111
	112	#if BRIDGE
	113	#include <net/bridge.h>
	114	#endif
	115
91447636 A	116	#define memcpy(x,y,z) bcopy(y, x, z)
91447636 A	117
1c79356b	118
91447636 A	119	SYSCTL_DECL(_net_link);
91447636 A	120	SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet");
1c79356b	121
1c79356b	122	struct en_desc {
91447636 A	123	u_int16_t type; /* Type of protocol stored in data */
	124	u_long protocol_family; /* Protocol family */
	125	u_long data[2]; /* Protocol data */
1c79356b	126	};
91447636 A	127	/* descriptors are allocated in blocks of ETHER_DESC_BLK_SIZE */
91447636 A	128	#define ETHER_DESC_BLK_SIZE (10)
1c79356b A	129
1c79356b A	130	/*
91447636	131	* Header for the demux list, hangs off of IFP at family_cookie
1c79356b A	132	*/
	133
	134	struct ether_desc_blk_str {
91447636 A	135	u_long n_max_used;
	136	u_long n_count;
	137	u_long n_used;
	138	struct en_desc block_ptr[1];
1c79356b	139	};
91447636 A	140	/* Size of the above struct before the array of struct en_desc */
	141	#define ETHER_DESC_HEADER_SIZE ((size_t)&(((struct ether_desc_blk_str*)0)->block_ptr[0]))
	142	__private_extern__ u_char etherbroadcastaddr[ETHER_ADDR_LEN] =
	143	{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1c79356b	144
91447636 A	145	int ether_add_proto_old(struct ifnet ifp, u_long protocol_family, struct ddesc_head_str desc_head);
	146	int ether_add_if(struct ifnet *ifp);
	147	int ether_del_if(struct ifnet *ifp);
	148	int ether_init_if(struct ifnet *ifp);
	149	int ether_family_init(void);
55e303ae	150
1c79356b	151	/*
91447636	152	* Release all descriptor entries owned by this protocol (there may be several).
7b1edb79	153	* Setting the type to 0 releases the entry. Eventually we should compact-out
1c79356b A	154	* the unused entries.
1c79356b A	155	*/
91447636 A	156	int
	157	ether_del_proto(
	158	ifnet_t ifp,
	159	protocol_family_t protocol_family)
1c79356b	160	{
91447636 A	161	struct ether_desc_blk_str desc_blk = (struct ether_desc_blk_str )ifp->family_cookie;
	162	u_long current = 0;
	163	int found = 0;
	164
	165	if (desc_blk == NULL)
	166	return 0;
	167
	168	for (current = desc_blk->n_max_used; current > 0; current--) {
	169	if (desc_blk->block_ptr[current - 1].protocol_family == protocol_family) {
	170	found = 1;
	171	desc_blk->block_ptr[current - 1].type = 0;
	172	desc_blk->n_used--;
	173	}
	174	}
	175
	176	if (desc_blk->n_used == 0) {
	177	FREE(ifp->family_cookie, M_IFADDR);
	178	ifp->family_cookie = 0;
	179	}
	180	else {
	181	/* Decrement n_max_used */
	182	for (; desc_blk->n_max_used > 0 && desc_blk->block_ptr[desc_blk->n_max_used - 1].type == 0; desc_blk->n_max_used--)
	183	;
	184	}
	185
	186	return 0;
1c79356b A	187	}
	188
	189
91447636 A	190	static int
	191	ether_add_proto_internal(
	192	struct ifnet *ifp,
	193	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 = (struct ether_desc_blk_str )ifp->family_cookie;
	198	u_int32_t i;
	199
	200	switch (demux->type) {
	201	/* These types are supported */
	202	/* Top three are preferred */
	203	case DLIL_DESC_ETYPE2:
	204	if (demux->datalen != 2) {
	205	return EINVAL;
	206	}
	207	break;
	208
	209	case DLIL_DESC_SAP:
	210	if (demux->datalen != 3) {
	211	return EINVAL;
	212	}
	213	break;
	214
	215	case DLIL_DESC_SNAP:
	216	if (demux->datalen != 5) {
	217	return EINVAL;
	218	}
	219	break;
	220
	221	default:
	222	return ENOTSUP;
	223	}
	224
	225	// Verify a matching descriptor does not exist.
	226	if (desc_blk != NULL) {
	227	switch (demux->type) {
	228	case DLIL_DESC_ETYPE2:
	229	for (i = 0; i < desc_blk->n_max_used; i++) {
	230	if (desc_blk->block_ptr[i].type == DLIL_DESC_ETYPE2 &&
	231	desc_blk->block_ptr[i].data[0] ==
	232	(u_int16_t)demux->data) {
	233	return EADDRINUSE;
	234	}
	235	}
	236	break;
	237	case DLIL_DESC_SAP:
	238	case DLIL_DESC_SNAP:
	239	for (i = 0; i < desc_blk->n_max_used; i++) {
	240	if (desc_blk->block_ptr[i].type == demux->type &&
	241	bcmp(desc_blk->block_ptr[i].data, demux->data,
	242	demux->datalen) == 0) {
	243	return EADDRINUSE;
	244	}
	245	}
	246	break;
	247	}
	248	}
	249
	250	// Check for case where all of the descriptor blocks are in use
	251	if (desc_blk == NULL \|\| desc_blk->n_used == desc_blk->n_count) {
	252	struct ether_desc_blk_str *tmp;
	253	u_long new_count = ETHER_DESC_BLK_SIZE;
254	u_long new_size;
255	u_long old_size = 0;
256
257	i = 0;
258
259	if (desc_blk) {
260	new_count += desc_blk->n_count;
261	old_size = desc_blk->n_count * sizeof(struct en_desc) + ETHER_DESC_HEADER_SIZE;
262	i = desc_blk->n_used;
263	}
264
265	new_size = new_count * sizeof(struct en_desc) + ETHER_DESC_HEADER_SIZE;
266
267	tmp = _MALLOC(new_size, M_IFADDR, M_WAITOK);
268	if (tmp == 0) {
269	/*
270	* Remove any previous descriptors set in the call.
271	*/
272	return ENOMEM;
273	}
274
275	bzero(tmp + old_size, new_size - old_size);
276	if (desc_blk) {
277	bcopy(desc_blk, tmp, old_size);
278	FREE(desc_blk, M_IFADDR);
279	}
280	desc_blk = tmp;
281	ifp->family_cookie = (u_long)desc_blk;
282	desc_blk->n_count = new_count;
283	}
284	else {
285	/* Find a free entry */
286	for (i = 0; i < desc_blk->n_count; i++) {
287	if (desc_blk->block_ptr[i].type == 0) {
288	break;
289	}
290	}
291	}
292
293	/* Bump n_max_used if appropriate */
294	if (i + 1 > desc_blk->n_max_used) {
295	desc_blk->n_max_used = i + 1;
296	}
297
298	ed = &desc_blk->block_ptr[i];
299	ed->protocol_family = protocol;
300	ed->data[0] = 0;
301	ed->data[1] = 0;
302
303	switch (demux->type) {
304	case DLIL_DESC_ETYPE2:
305	/* 2 byte ethernet raw protocol type is at native_type */
306	/* prtocol must be in network byte order */
307	ed->type = DLIL_DESC_ETYPE2;
308	ed->data[0] = (u_int16_t)demux->data;
309	break;
310
311	case DLIL_DESC_SAP:
312	ed->type = DLIL_DESC_SAP;
313	bcopy(demux->data, &ed->data[0], 3);
314	break;
315
316	case DLIL_DESC_SNAP: {
317	u_int8_t* pDest = ((u_int8_t*)&ed->data[0]) + 3;
318	ed->type = DLIL_DESC_SNAP;
319	bcopy(demux->data, pDest, 5);
320	}
321	break;
322	}
323
324	desc_blk->n_used++;
325
326	return 0;
327	}
1c79356b	328
91447636 A	329	int
	330	ether_add_proto(
	331	ifnet_t ifp,
	332	protocol_family_t protocol,
	333	const struct ifnet_demux_desc *demux_list,
	334	u_int32_t demux_count)
	335	{
	336	int error = 0;
	337	u_int32_t i;
	338
	339	for (i = 0; i < demux_count; i++) {
	340	error = ether_add_proto_internal(ifp, protocol, &demux_list[i]);
	341	if (error) {
	342	ether_del_proto(ifp, protocol);
	343	break;
	344	}
	345	}
	346
	347	return error;
	348	}
4a249263 A	349
4a249263 A	350	__private_extern__ int
91447636 A	351	ether_add_proto_old(
	352	struct ifnet *ifp,
	353	u_long protocol_family,
	354	struct ddesc_head_str *desc_head)
1c79356b	355	{
91447636 A	356	struct dlil_demux_desc *desc;
	357	int error = 0;
	358
	359	TAILQ_FOREACH(desc, desc_head, next) {
	360	struct ifnet_demux_desc dmx;
	361	int swapped = 0;
	362
	363	// Convert dlil_demux_desc to ifnet_demux_desc
	364	dmx.type = desc->type;
	365	dmx.datalen = desc->variants.native_type_length;
	366	dmx.data = desc->native_type;
	367
	368	#ifdef DLIL_DESC_RAW
	369	if (dmx.type == DLIL_DESC_RAW) {
	370	swapped = 1;
	371	dmx.type = DLIL_DESC_ETYPE2;
	372	dmx.datalen = 2;
	373	(u_int16_t)dmx.data = htons((u_int16_t)dmx.data);
	374	}
	375	#endif
	376
	377	error = ether_add_proto_internal(ifp, protocol_family, &dmx);
	378	if (swapped) {
	379	(u_int16_t)dmx.data = ntohs((u_int16_t)dmx.data);
	380	swapped = 0;
	381	}
	382	if (error) {
	383	ether_del_proto(ifp, protocol_family);
	384	break;
	385	}
	386	}
	387
	388	return error;
1c79356b A	389	}
	390
	391
91447636 A	392	static int
91447636 A	393	ether_shutdown(void)
1c79356b A	394	{
	395	return 0;
	396	}
	397
	398
91447636 A	399	int
	400	ether_demux(
	401	ifnet_t ifp,
	402	mbuf_t m,
	403	char *frame_header,
	404	protocol_family_t *protocol_family)
1c79356b	405	{
91447636 A	406	struct ether_header eh = (struct ether_header )frame_header;
	407	u_short ether_type = eh->ether_type;
	408	u_int16_t type;
	409	u_int8_t *data;
	410	u_long i = 0;
	411	struct ether_desc_blk_str desc_blk = (struct ether_desc_blk_str )ifp->family_cookie;
	412	u_long maxd = desc_blk ? desc_blk->n_max_used : 0;
	413	struct en_desc *ed = desc_blk ? desc_blk->block_ptr : NULL;
	414	u_int32_t extProto1 = 0;
	415	u_int32_t extProto2 = 0;
	416
	417	if (eh->ether_dhost[0] & 1) {
	418	/* Check for broadcast */
	419	if ((u_int32_t)eh->ether_dhost == 0xFFFFFFFF &&
	420	(u_int16_t)(eh->ether_dhost + sizeof(u_int32_t)) == 0xFFFF)
	421	m->m_flags \|= M_BCAST;
	422	else
	423	m->m_flags \|= M_MCAST;
	424	}
1c79356b	425
91447636 A	426	if (ifp->if_eflags & IFEF_BOND) {
	427	/* if we're bonded, bond "protocol" gets all the packets */
	428	*protocol_family = PF_BOND;
	429	return (0);
	430	}
1c79356b	431
91447636 A	432	if ((eh->ether_dhost[0] & 1) == 0) {
	433	/*
	434	* When the driver is put into promiscuous mode we may receive unicast
	435	* frames that are not intended for our interfaces. They are marked here
	436	* as being promiscuous so the caller may dispose of them after passing
	437	* the packets to any interface filters.
	438	*/
	439	#define ETHER_CMP(x, y) ( ((u_int16_t ) x)[0] != ((u_int16_t ) y)[0] \|\| \
	440	((u_int16_t ) x)[1] != ((u_int16_t ) y)[1] \|\| \
	441	((u_int16_t ) x)[2] != ((u_int16_t ) y)[2] )
	442
	443	if (ETHER_CMP(eh->ether_dhost, ifnet_lladdr(ifp))) {
	444	m->m_flags \|= M_PROMISC;
	445	}
	446	}
	447
	448	/* Quick check for VLAN */
	449	if ((m->m_pkthdr.csum_flags & CSUM_VLAN_TAG_VALID) != 0 \|\|
	450	ether_type == htons(ETHERTYPE_VLAN)) {
	451	*protocol_family = PF_VLAN;
	452	return 0;
	453	}
	454
	455	data = mtod(m, u_int8_t*);
	456
	457	/*
	458	* Determine the packet's protocol type and stuff the protocol into
	459	* longs for quick compares.
	460	*/
	461
	462	if (ntohs(ether_type) <= 1500) {
	463	extProto1 = (u_int32_t)data;
	464
	465	// SAP or SNAP
	466	if ((extProto1 & htonl(0xFFFFFF00)) == htonl(0xAAAA0300)) {
	467	// SNAP
	468	type = DLIL_DESC_SNAP;
	469	extProto2 = (u_int32_t)(data + sizeof(u_int32_t));
	470	extProto1 &= htonl(0x000000FF);
	471	} else {
	472	type = DLIL_DESC_SAP;
	473	extProto1 &= htonl(0xFFFFFF00);
	474	}
	475	} else {
	476	type = DLIL_DESC_ETYPE2;
	477	}
	478
	479	/*
	480	* Search through the connected protocols for a match.
	481	*/
	482
	483	switch (type) {
	484	case DLIL_DESC_ETYPE2:
	485	for (i = 0; i < maxd; i++) {
	486	if ((ed[i].type == type) && (ed[i].data[0] == ether_type)) {
	487	*protocol_family = ed[i].protocol_family;
	488	return 0;
	489	}
	490	}
	491	break;
	492
	493	case DLIL_DESC_SAP:
	494	for (i = 0; i < maxd; i++) {
	495	if ((ed[i].type == type) && (ed[i].data[0] == extProto1)) {
496	*protocol_family = ed[i].protocol_family;
497	return 0;
498	}
499	}
500	break;
501
502	case DLIL_DESC_SNAP:
503	for (i = 0; i < maxd; i++) {
504	if ((ed[i].type == type) && (ed[i].data[0] == extProto1) &&
505	(ed[i].data[1] == extProto2)) {
506	*protocol_family = ed[i].protocol_family;
507	return 0;
508	}
509	}
510	break;
511	}
512
513	return ENOENT;
514	}
1c79356b A	515
	516	/*
	517	* Ethernet output routine.
	518	* Encapsulate a packet of type family for the local net.
	519	* Use trailer local net encapsulation if enough data in first
	520	* packet leaves a multiple of 512 bytes of data in remainder.
1c79356b A	521	*/
1c79356b A	522	int
91447636 A	523	ether_frameout(
	524	struct ifnet *ifp,
	525	struct mbuf **m,
	526	const struct sockaddr *ndest,
	527	const char *edst,
	528	const char *ether_type)
1c79356b	529	{
91447636	530	struct ether_header *eh;
4a249263	531	int hlen; /* link layer header length */
1c79356b A	532
	533	hlen = ETHER_HDR_LEN;
	534
	535	/*
	536	* If a simplex interface, and the packet is being sent to our
	537	* Ethernet address or a broadcast address, loopback a copy.
	538	* XXX To make a simplex device behave exactly like a duplex
	539	* device, we should copy in the case of sending to our own
	540	* ethernet address (thus letting the original actually appear
	541	* on the wire). However, we don't do that here for security
	542	* reasons and compatibility with the original behavior.
	543	*/
	544	if ((ifp->if_flags & IFF_SIMPLEX) &&
	545	((*m)->m_flags & M_LOOP)) {
91447636	546	if (lo_ifp) {
7b1edb79 A	547	if ((*m)->m_flags & M_BCAST) {
	548	struct mbuf n = m_copy(m, 0, (int)M_COPYALL);
	549	if (n != NULL)
91447636 A	550	dlil_output(lo_ifp, ndest->sa_family, n, 0, ndest, 0);
	551	}
	552	else {
	553	if (bcmp(edst, ifnet_lladdr(ifp), ETHER_ADDR_LEN) == 0) {
	554	dlil_output(lo_ifp, ndest->sa_family, *m, 0, ndest, 0);
7b1edb79 A	555	return EJUSTRETURN;
	556	}
	557	}
1c79356b A	558	}
1c79356b A	559	}
7b1edb79	560
1c79356b A	561	/*
	562	* Add local net header. If no space in first mbuf,
	563	* allocate another.
	564	*/
	565	M_PREPEND(*m, sizeof (struct ether_header), M_DONTWAIT);
	566	if (*m == 0) {
	567	return (EJUSTRETURN);
	568	}
	569
	570
	571	eh = mtod(m, struct ether_header );
	572	(void)memcpy(&eh->ether_type, ether_type,
	573	sizeof(eh->ether_type));
	574	(void)memcpy(eh->ether_dhost, edst, 6);
91447636	575	ifnet_lladdr_copy_bytes(ifp, eh->ether_shost, ETHER_ADDR_LEN);
1c79356b A	576
	577	return 0;
	578	}
	579
	580
4a249263 A	581	__private_extern__ int
4a249263 A	582	ether_add_if(struct ifnet *ifp)
1c79356b	583	{
91447636 A	584	ifp->if_framer = ether_frameout;
91447636 A	585	ifp->if_demux = ether_demux;
1c79356b A	586
	587	return 0;
	588	}
	589
4a249263 A	590	__private_extern__ int
4a249263 A	591	ether_del_if(struct ifnet *ifp)
1c79356b	592	{
91447636 A	593	if (ifp->family_cookie) {
	594	FREE(ifp->family_cookie, M_IFADDR);
	595	return 0;
	596	}
	597	else
	598	return ENOENT;
1c79356b A	599	}
1c79356b A	600
4a249263 A	601	__private_extern__ int
4a249263 A	602	ether_init_if(struct ifnet *ifp)
9bccf70c	603	{
91447636 A	604	/*
	605	* Copy ethernet address out of old style arpcom. New
	606	* interfaces created using the KPIs will not have an
	607	* interface family. Those interfaces will have the
	608	* lladdr passed in when the interface is created.
	609	*/
	610	u_char enaddr = ((u_char)ifp) + sizeof(struct ifnet);
	611	ifnet_set_lladdr(ifp, enaddr, 6);
	612	bzero(enaddr, 6);
	613
9bccf70c A	614	return 0;
9bccf70c A	615	}
1c79356b A	616
1c79356b A	617
91447636 A	618	errno_t
	619	ether_check_multi(
	620	ifnet_t ifp,
	621	const struct sockaddr *proto_addr)
	622	{
	623	errno_t result = EAFNOSUPPORT;
	624	const u_char *e_addr;
	625
	626	/*
	627	* AF_SPEC and AF_LINK don't require translation. We do
	628	* want to verify that they specify a valid multicast.
	629	*/
	630	switch(proto_addr->sa_family) {
	631	case AF_UNSPEC:
	632	e_addr = (const u_char*)&proto_addr->sa_data[0];
	633	if ((e_addr[0] & 0x01) != 0x01)
	634	result = EADDRNOTAVAIL;
	635	else
	636	result = 0;
	637	break;
	638
	639	case AF_LINK:
	640	e_addr = CONST_LLADDR((const struct sockaddr_dl*)proto_addr);
	641	if ((e_addr[0] & 0x01) != 0x01)
	642	result = EADDRNOTAVAIL;
	643	else
	644	result = 0;
	645	break;
	646	}
	647
	648	return result;
	649	}
	650
1c79356b	651	int
91447636 A	652	ether_ioctl(
	653	__unused ifnet_t ifp,
	654	__unused u_int32_t command,
	655	__unused void* data)
1c79356b	656	{
91447636	657	return EOPNOTSUPP;
1c79356b A	658	}
	659
	660
91447636 A	661	extern int ether_attach_inet(struct ifnet *ifp, u_long proto_family);
	662	extern int ether_detach_inet(struct ifnet *ifp, u_long proto_family);
	663	extern int ether_attach_inet6(struct ifnet *ifp, u_long proto_family);
	664	extern int ether_detach_inet6(struct ifnet *ifp, u_long proto_family);
	665
	666	extern void kprintf(const char *, ...);
	667
	668	int ether_family_init(void)
1c79356b	669	{
91447636	670	int error=0;
1c79356b A	671	struct dlil_ifmod_reg_str ifmod_reg;
1c79356b A	672
9bccf70c	673	/* ethernet family is built-in, called from bsd_init */
1c79356b	674
9bccf70c	675	bzero(&ifmod_reg, sizeof(ifmod_reg));
1c79356b A	676	ifmod_reg.add_if = ether_add_if;
1c79356b A	677	ifmod_reg.del_if = ether_del_if;
9bccf70c	678	ifmod_reg.init_if = ether_init_if;
91447636	679	ifmod_reg.add_proto = ether_add_proto_old;
1c79356b	680	ifmod_reg.del_proto = ether_del_proto;
91447636	681	ifmod_reg.ifmod_ioctl = ether_ioctl;
1c79356b A	682	ifmod_reg.shutdown = ether_shutdown;
	683
	684	if (dlil_reg_if_modules(APPLE_IF_FAM_ETHERNET, &ifmod_reg)) {
7b1edb79	685	printf("WARNING: ether_family_init -- Can't register if family modules\n");
4a249263 A	686	error = EIO;
4a249263 A	687	goto done;
1c79356b A	688	}
1c79356b A	689
91447636	690	/* Register protocol registration functions */
55e303ae	691
91447636 A	692	if ((error = dlil_reg_proto_module(PF_INET, APPLE_IF_FAM_ETHERNET,
	693	ether_attach_inet, ether_detach_inet)) != 0) {
	694	kprintf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
	695	goto done;
	696	}
	697
	698
	699	if ((error = dlil_reg_proto_module(PF_INET6, APPLE_IF_FAM_ETHERNET,
	700	ether_attach_inet6, ether_detach_inet6)) != 0) {
	701	kprintf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
	702	goto done;
	703	}
	704	vlan_family_init();
	705	bond_family_init();
55e303ae	706
4a249263	707	done:
9bccf70c	708
55e303ae	709	return (error);
1c79356b	710	}