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/net/tipc/node.h b/net/tipc/node.h
index 5fb38cf..e06faf4 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -49,14 +49,14 @@ enum {
TIPC_BCAST_STATE_NACK = (1 << 2),
TIPC_BLOCK_FLOWCTL = (1 << 3),
TIPC_BCAST_RCAST = (1 << 4),
- TIPC_NODE_ID32 = (1 << 5)
+ TIPC_NODE_ID128 = (1 << 5)
};
#define TIPC_NODE_CAPABILITIES (TIPC_BCAST_SYNCH | \
TIPC_BCAST_STATE_NACK | \
TIPC_BCAST_RCAST | \
TIPC_BLOCK_FLOWCTL | \
- TIPC_NODE_ID32)
+ TIPC_NODE_ID128)
#define INVALID_BEARER_ID -1
void tipc_node_stop(struct net *net);