types/netmap: use new node key type.

Signed-off-by: David Anderson <danderson@tailscale.com>

wgengine/bench/wg.go

@@ -106,7 +106,7 @@ func setupWGTest(b *testing.B, logf logger.Logf, traf *TrafficGen, a1, a2 netadd
 		}
 		e2.SetNetworkMap(&netmap.NetworkMap{
 			NodeKey:    tailcfg.NodeKeyFromNodePublic(k2.Public()),
-			PrivateKey: k2.AsWGPrivate(),
+			PrivateKey: k2,
 			Peers:      []*tailcfg.Node{&n},
 		})
 
@@ -143,7 +143,7 @@ func setupWGTest(b *testing.B, logf logger.Logf, traf *TrafficGen, a1, a2 netadd
 		}
 		e1.SetNetworkMap(&netmap.NetworkMap{
 			NodeKey:    tailcfg.NodeKeyFromNodePublic(k1.Public()),
-			PrivateKey: k1.AsWGPrivate(),
+			PrivateKey: k1,
 			Peers:      []*tailcfg.Node{&n},
 		})
 

wgengine/magicsock/magicsock_test.go

@@ -256,7 +256,7 @@ func meshStacks(logf logger.Logf, mutateNetmap func(idx int, nm *netmap.NetworkM
 	buildNetmapLocked := func(myIdx int) *netmap.NetworkMap {
 		me := ms[myIdx]
 		nm := &netmap.NetworkMap{
-			PrivateKey: me.privateKey,
+			PrivateKey: key.NodePrivateFromRaw32(mem.B(me.privateKey[:])),
 			NodeKey:    tailcfg.NodeKey(me.privateKey.Public()),
 			Addresses:  []netaddr.IPPrefix{netaddr.IPPrefixFrom(netaddr.IPv4(1, 0, 0, byte(myIdx+1)), 32)},
 		}

wgengine/wgcfg/nmcfg/nmcfg.go

@@ -55,7 +55,7 @@ func cidrIsSubnet(node *tailcfg.Node, cidr netaddr.IPPrefix) bool {
 func WGCfg(nm *netmap.NetworkMap, logf logger.Logf, flags netmap.WGConfigFlags, exitNode tailcfg.StableNodeID) (*wgcfg.Config, error) {
 	cfg := &wgcfg.Config{
 		Name:       "tailscale",
-		PrivateKey: key.NodePrivateFromRaw32(mem.B(nm.PrivateKey[:])),
+		PrivateKey: nm.PrivateKey,
 		Addresses:  nm.Addresses,
 		Peers:      make([]wgcfg.Peer, 0, len(nm.Peers)),
 	}