tipc: add 128-bit node identifier
We add a 128-bit node identity, as an alternative to the currently used
32-bit node address.
For the sake of compatibility and to minimize message header changes
we retain the existing 32-bit address field. When not set explicitly by
the user, this field will be filled with a hash value generated from the
much longer node identity, and be used as a shorthand value for the
latter.
We permit either the address or the identity to be set by configuration,
but not both, so when the address value is set by a legacy user the
corresponding 128-bit node identity is generated based on the that value.
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index d896ded..0affb68 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -169,6 +169,8 @@ enum {
TIPC_NLA_NET_UNSPEC,
TIPC_NLA_NET_ID, /* u32 */
TIPC_NLA_NET_ADDR, /* u32 */
+ TIPC_NLA_NET_NODEID, /* u64 */
+ TIPC_NLA_NET_NODEID_W1, /* u64 */
__TIPC_NLA_NET_MAX,
TIPC_NLA_NET_MAX = __TIPC_NLA_NET_MAX - 1