diff options
| author | alex.bluesman.smirnov@gmail.com <alex.bluesman.smirnov@gmail.com> | 2012-05-10 03:25:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-10 23:38:22 -0400 |
| commit | 06a4c1c55dbe5d9f7a708e8f1a52fd2ac8e5874f (patch) | |
| tree | e118ac25a92ffae751709da562b59ea02e242184 | |
| parent | 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 (diff) | |
6lowpan: IPv6 link local address
According to the RFC4944 (Transmission of IPv6 Packets over
IEEE 802.15.4 Networks), chapter 7:
The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface
is formed by appending the Interface Identifier, as defined above, to
the prefix FE80::/64.
10 bits 54 bits 64 bits
+----------+-----------------------+----------------------------+
|1111111010| (zeros) | Interface Identifier |
+----------+-----------------------+----------------------------+
This patch adds IPv6 address generation support for the 6lowpan
interfaces.
Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/addrconf.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index e3b3421f8dad..8b7f100a4b45 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -66,6 +66,7 @@ #include <net/sock.h> #include <net/snmp.h> +#include <net/af_ieee802154.h> #include <net/ipv6.h> #include <net/protocol.h> #include <net/ndisc.h> @@ -1514,6 +1515,14 @@ static int addrconf_ifid_eui48(u8 *eui, struct net_device *dev) return 0; } +static int addrconf_ifid_eui64(u8 *eui, struct net_device *dev) +{ + if (dev->addr_len != IEEE802154_ADDR_LEN) + return -1; + memcpy(eui, dev->dev_addr, 8); + return 0; +} + static int addrconf_ifid_arcnet(u8 *eui, struct net_device *dev) { /* XXX: inherit EUI-64 from other interface -- yoshfuji */ @@ -1577,6 +1586,8 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) return addrconf_ifid_sit(eui, dev); case ARPHRD_IPGRE: return addrconf_ifid_gre(eui, dev); + case ARPHRD_IEEE802154: + return addrconf_ifid_eui64(eui, dev); } return -1; } @@ -2438,7 +2449,8 @@ static void addrconf_dev_config(struct net_device *dev) (dev->type != ARPHRD_FDDI) && (dev->type != ARPHRD_IEEE802_TR) && (dev->type != ARPHRD_ARCNET) && - (dev->type != ARPHRD_INFINIBAND)) { + (dev->type != ARPHRD_INFINIBAND) && + (dev->type != ARPHRD_IEEE802154)) { /* Alas, we support only Ethernet autoconfiguration. */ return; } |