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p2p: authenticate peer ID

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This commit is contained in:
Ethan Buchman
2018-01-01 23:23:11 -05:00
parent 6e823c6e87
commit 488ae529ad
2 changed files with 15 additions and 8 deletions
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11
p2p/switch.go
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@ -239,9 +239,8 @@ func (sw *Switch) OnStop() {
// NOTE: This performs a blocking handshake before the peer is added.
// NOTE: If error is returned, caller is responsible for calling peer.CloseConn()
func (sw *Switch) addPeer(peer *peer) error {
// Avoid self
if sw.nodeInfo.PubKey.Equals(peer.PubKey().Wrap()) {
if sw.nodeKey.ID() == peer.ID() {
return errors.New("Ignoring connection from self")
}
@ -385,6 +384,14 @@ func (sw *Switch) DialPeerWithAddress(addr *NetAddress, persistent bool) (Peer,
return nil, err
}
peer.SetLogger(sw.Logger.With("peer", addr))
// authenticate peer
if addr.ID == "" {
peer.Logger.Info("Dialed peer with unknown ID - unable to authenticate", "addr", addr)
} else if addr.ID != peer.ID() {
return nil, fmt.Errorf("Failed to authenticate peer %v. Connected to peer with ID %s", addr, peer.ID())
}
if persistent {
peer.makePersistent()
}