diff options
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index d6da0fe5acca..8a6756ac7519 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2073,12 +2073,23 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp) __ipv6_dev_ac_dec(ifp->idev, &addr); } -static int addrconf_ifid_eui64(u8 *eui, struct net_device *dev) -{ - if (dev->addr_len != EUI64_ADDR_LEN) +static int addrconf_ifid_6lowpan(u8 *eui, struct net_device *dev) +{ + switch (dev->addr_len) { + case ETH_ALEN: + memcpy(eui, dev->dev_addr, 3); + eui[3] = 0xFF; + eui[4] = 0xFE; + memcpy(eui + 5, dev->dev_addr + 3, 3); + break; + case EUI64_ADDR_LEN: + memcpy(eui, dev->dev_addr, EUI64_ADDR_LEN); + eui[0] ^= 2; + break; + default: return -1; - memcpy(eui, dev->dev_addr, EUI64_ADDR_LEN); - eui[0] ^= 2; + } + return 0; } @@ -2170,7 +2181,7 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) case ARPHRD_TUNNEL: return addrconf_ifid_gre(eui, dev); case ARPHRD_6LOWPAN: - return addrconf_ifid_eui64(eui, dev); + return addrconf_ifid_6lowpan(eui, dev); case ARPHRD_IEEE1394: return addrconf_ifid_ieee1394(eui, dev); case ARPHRD_TUNNEL6: |