*
* @APPLE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_HEADER_END@
*/
* SUCH DAMAGE.
*
* @(#)if_ethersubr.c 8.1 (Berkeley) 6/10/93
+ * $FreeBSD: src/sys/net/if_ethersubr.c,v 1.70.2.17 2001/08/01 00:47:49 fenner Exp $
*/
-#if NOTFB31
-#include "opt_atalk.h"
-#include "opt_inet.h"
-#include "opt_ipx.h"
-#include "opt_bdg.h"
-#endif
-
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <net/if.h>
-#include <net/netisr.h>
#include <net/route.h>
#include <net/if_llc.h>
#include <net/if_dl.h>
#include <net/if_types.h>
-#if INET
+#if INET || INET6
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/if_ether.h>
#include <netipx/ipx_if.h>
#endif
-#if NS
-#include <netns/ns.h>
-#include <netns/ns_if.h>
-ushort ns_nettype;
-int ether_outputdebug = 0;
-int ether_inputdebug = 0;
-#endif
-
-#if ISO
-#include <netiso/argo_debug.h>
-#include <netiso/iso.h>
-#include <netiso/iso_var.h>
-#include <netiso/iso_snpac.h>
-#endif
-
-/*#if LLC
-#include <netccitt/dll.h>
-#include <netccitt/llc_var.h>
-#endif*/
-
#include <sys/socketvar.h>
#if LLC && CCITT
#include <net/if_vlan_var.h>
#endif /* NVLAN > 0 */
-static int ether_resolvemulti __P((struct ifnet *, struct sockaddr **,
- struct sockaddr *));
extern u_char etherbroadcastaddr[];
#define senderr(e) do { error = (e); goto bad;} while (0)
-#define IFP2AC(IFP) ((struct arpcom *)IFP)
/*
* Perform common duties while attaching to interface list
*/
-
-void
-ether_ifattach(ifp)
- register struct ifnet *ifp;
-{
- register struct ifaddr *ifa;
- register struct sockaddr_dl *sdl;
- boolean_t funnel_state;
-
- funnel_state = thread_funnel_set(network_flock, TRUE);
- printf("ether_ifattach called for %s\n", ifp->if_name);
- ether_family_init();
-
- ifp->if_name = "en";
- ifp->if_family = APPLE_IF_FAM_ETHERNET;
- ifp->if_type = IFT_ETHER;
- ifp->if_addrlen = 6;
- ifp->if_hdrlen = 14;
- ifp->if_mtu = ETHERMTU;
- ifp->if_resolvemulti = ether_resolvemulti;
- if (ifp->if_baudrate == 0)
- ifp->if_baudrate = 10000000;
-
- dlil_if_attach(ifp);
- ifa = ifnet_addrs[ifp->if_index - 1];
- if (ifa == 0) {
- printf("ether_ifattach: no lladdr!\n");
- (void) thread_funnel_set(network_flock, funnel_state);
- return;
- }
- sdl = (struct sockaddr_dl *)ifa->ifa_addr;
- sdl->sdl_type = IFT_ETHER;
- sdl->sdl_alen = ifp->if_addrlen;
- bcopy((IFP2AC(ifp))->ac_enaddr, LLADDR(sdl), ifp->if_addrlen);
-#ifdef INET6
- in6_ifattach_getifid(ifp);
-#endif
- (void) thread_funnel_set(network_flock, funnel_state);
-}
-
-SYSCTL_DECL(_net_link);
-SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet");
-
int
-ether_resolvemulti(ifp, llsa, sa)
- struct ifnet *ifp;
- struct sockaddr **llsa;
- struct sockaddr *sa;
+ether_resolvemulti(
+ struct ifnet *ifp,
+ struct sockaddr **llsa,
+ struct sockaddr *sa)
{
struct sockaddr_dl *sdl;
struct sockaddr_in *sin;
}
-
-
-
-u_char ether_ipmulticast_min[6] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
-u_char ether_ipmulticast_max[6] = { 0x01, 0x00, 0x5e, 0x7f, 0xff, 0xff };
-/*
- * Add an Ethernet multicast address or range of addresses to the list for a
- * given interface.
- */
-int
-ether_addmulti(ifr, ac)
- struct ifreq *ifr;
- register struct arpcom *ac;
-{
- register struct ether_multi *enm;
- struct sockaddr_in *sin;
- u_char addrlo[6];
- u_char addrhi[6];
- int s = splimp();
-
- switch (ifr->ifr_addr.sa_family) {
-
- case AF_UNSPEC:
- bcopy(ifr->ifr_addr.sa_data, addrlo, 6);
- bcopy(addrlo, addrhi, 6);
- break;
-
-#if INET
- case AF_INET:
- sin = (struct sockaddr_in *)&(ifr->ifr_addr);
- if (sin->sin_addr.s_addr == INADDR_ANY) {
- /*
- * An IP address of INADDR_ANY means listen to all
- * of the Ethernet multicast addresses used for IP.
- * (This is for the sake of IP multicast routers.)
- */
- bcopy(ether_ipmulticast_min, addrlo, 6);
- bcopy(ether_ipmulticast_max, addrhi, 6);
- }
- else {
- ETHER_MAP_IP_MULTICAST(&sin->sin_addr, addrlo);
- bcopy(addrlo, addrhi, 6);
- }
- break;
-#endif
-
- default:
- splx(s);
- return (EAFNOSUPPORT);
- }
-
- /*
- * Verify that we have valid Ethernet multicast addresses.
- */
- if ((addrlo[0] & 0x01) != 1 || (addrhi[0] & 0x01) != 1) {
- splx(s);
- return (EINVAL);
- }
- /*
- * See if the address range is already in the list.
- */
- ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm);
- if (enm != NULL) {
- /*
- * Found it; just increment the reference count.
- */
- ++enm->enm_refcount;
- splx(s);
- return (0);
- }
- /*
- * New address or range; malloc a new multicast record
- * and link it into the interface's multicast list.
- */
- enm = (struct ether_multi *)_MALLOC(sizeof(*enm), M_IFMADDR, M_WAITOK);
- if (enm == NULL) {
- splx(s);
- return (ENOBUFS);
- }
- bcopy(addrlo, enm->enm_addrlo, 6);
- bcopy(addrhi, enm->enm_addrhi, 6);
- enm->enm_ac = ac;
- enm->enm_refcount = 1;
- enm->enm_next = ac->ac_multiaddrs;
- ac->ac_multiaddrs = enm;
- splx(s);
- /*
- * Return ENETRESET to inform the driver that the list has changed
- * and its reception filter should be adjusted accordingly.
- */
- return (ENETRESET);
-}
-
-/*
- * Delete a multicast address record.
- */
-int
-ether_delmulti(ifr, ac, ret_mca)
- struct ifreq *ifr;
- register struct arpcom *ac;
- struct ether_addr * ret_mca;
-{
- register struct ether_multi *enm;
- register struct ether_multi **p;
- struct sockaddr_in *sin;
- u_char addrlo[6];
- u_char addrhi[6];
- int s = splimp();
-
- switch (ifr->ifr_addr.sa_family) {
-
- case AF_UNSPEC:
- bcopy(ifr->ifr_addr.sa_data, addrlo, 6);
- bcopy(addrlo, addrhi, 6);
- break;
-
-#if INET
- case AF_INET:
- sin = (struct sockaddr_in *)&(ifr->ifr_addr);
- if (sin->sin_addr.s_addr == INADDR_ANY) {
- /*
- * An IP address of INADDR_ANY means stop listening
- * to the range of Ethernet multicast addresses used
- * for IP.
- */
- bcopy(ether_ipmulticast_min, addrlo, 6);
- bcopy(ether_ipmulticast_max, addrhi, 6);
- }
- else {
- ETHER_MAP_IP_MULTICAST(&sin->sin_addr, addrlo);
- bcopy(addrlo, addrhi, 6);
- }
- break;
-#endif
-
- default:
- splx(s);
- return (EAFNOSUPPORT);
- }
-
- /*
- * Look up the address in our list.
- */
- ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm);
- if (enm == NULL) {
- splx(s);
- return (ENXIO);
- }
- if (--enm->enm_refcount != 0) {
- /*
- * Still some claims to this record.
- */
- splx(s);
- return (0);
- }
-
- /* save the low and high address of the range before deletion */
- if (ret_mca) {
- *ret_mca = *((struct ether_addr *)addrlo);
- *(ret_mca + 1) = *((struct ether_addr *)addrhi);
- }
-
- /*
- * No remaining claims to this record; unlink and free it.
- */
- for (p = &enm->enm_ac->ac_multiaddrs;
- *p != enm;
- p = &(*p)->enm_next)
- continue;
- *p = (*p)->enm_next;
- FREE(enm, M_IFMADDR);
- splx(s);
- /*
- * Return ENETRESET to inform the driver that the list has changed
- * and its reception filter should be adjusted accordingly.
- */
- return (ENETRESET);
-}
-
/*
* Convert Ethernet address to printable (loggable) representation.
*/
projects / apple / xnu.git / blobdiff