Black listing of bad peers

ethereum.go

@@ -69,6 +69,8 @@ type Ethereum struct {
 	Addr net.Addr
 	Port string
 
+	blacklist [][]byte
+
 	peerMut sync.Mutex
 
 	// Capabilities for outgoing peers
@@ -211,6 +213,10 @@ func (s *Ethereum) HighestTDPeer() (td *big.Int) {
 	return
 }
 
+func (self *Ethereum) BlacklistPeer(peer *Peer) {
+	self.blacklist = append(self.blacklist, peer.pubkey)
+}
+
 func (s *Ethereum) AddPeer(conn net.Conn) {
 	peer := NewPeer(conn, s, true)