Commit 8a7a4b47 authored by Alexander Aring's avatar Alexander Aring Committed by Marcel Holtmann

ipv6: addrconf: fix 48 bit 6lowpan autoconfiguration

This patch adds support for 48 bit 6LoWPAN address length
autoconfiguration which is the case for BTLE 6LoWPAN.
Signed-off-by: default avatarAlexander Aring <aar@pengutronix.de>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: default avatarStefan Schmidt <stefan@osg.samsung.com>
Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 94e4a680
...@@ -2073,12 +2073,19 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp) ...@@ -2073,12 +2073,19 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp)
__ipv6_dev_ac_dec(ifp->idev, &addr); __ipv6_dev_ac_dec(ifp->idev, &addr);
} }
static int addrconf_ifid_eui64(u8 *eui, struct net_device *dev) static int addrconf_ifid_6lowpan(u8 *eui, struct net_device *dev)
{ {
if (dev->addr_len != EUI64_ADDR_LEN) switch (dev->addr_len) {
case ETH_ALEN:
return addrconf_ifid_eui48(eui, dev);
case EUI64_ADDR_LEN:
memcpy(eui, dev->dev_addr, EUI64_ADDR_LEN);
eui[0] ^= 2;
break;
default:
return -1; return -1;
memcpy(eui, dev->dev_addr, EUI64_ADDR_LEN); }
eui[0] ^= 2;
return 0; return 0;
} }
...@@ -2170,7 +2177,7 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) ...@@ -2170,7 +2177,7 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
case ARPHRD_TUNNEL: case ARPHRD_TUNNEL:
return addrconf_ifid_gre(eui, dev); return addrconf_ifid_gre(eui, dev);
case ARPHRD_6LOWPAN: case ARPHRD_6LOWPAN:
return addrconf_ifid_eui64(eui, dev); return addrconf_ifid_6lowpan(eui, dev);
case ARPHRD_IEEE1394: case ARPHRD_IEEE1394:
return addrconf_ifid_ieee1394(eui, dev); return addrconf_ifid_ieee1394(eui, dev);
case ARPHRD_TUNNEL6: case ARPHRD_TUNNEL6:
......
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