// newConn constructs a new connection
func newSecureConn(ctx context.Context, sk ic.PrivKey, insecure Conn) (Conn, error) {
if insecure == nil {
return nil, errors.New("insecure is nil")
}
if insecure.LocalPeer() == "" {
return nil, errors.New("insecure.LocalPeer() is nil")
}
if sk == nil {
return nil, errors.New("private key is nil")
}
// NewSession performs the secure handshake, which takes multiple RTT
sessgen := secio.SessionGenerator{LocalID: insecure.LocalPeer(), PrivateKey: sk}
secure, err := sessgen.NewSession(ctx, insecure)
if err != nil {
return nil, err
}
conn := &secureConn{
insecure: insecure,
secure: secure,
}
return conn, nil
}
func connect(args args) error {
p, ps, err := setupPeer(args)
if err != nil {
return err
}
var conn net.Conn
if args.listen {
conn, err = Listen(args.localAddr)
} else {
conn, err = Dial(args.localAddr, args.remoteAddr)
}
if err != nil {
return err
}
// log everything that goes through conn
rwc := &logRW{n: "conn", rw: conn}
// OK, let's setup the channel.
sk := ps.PrivKey(p)
sg := secio.SessionGenerator{LocalID: p, PrivateKey: sk}
sess, err := sg.NewSession(nil, rwc)
if err != nil {
return err
}
out("remote peer id: %s", sess.RemotePeer())
netcat(sess.ReadWriter().(io.ReadWriteCloser))
return nil
}