don't allow a useless handshake with yourself (#402)
* don't allow a useless handshake with yourself * remove helper
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@ -107,6 +107,14 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, packet []byte, h *Header) {
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certName := remoteCert.Details.Name
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fingerprint, _ := remoteCert.Sha256Sum()
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if vpnIP == ip2int(f.certState.certificate.Details.Ips[0].IP) {
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l.WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
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WithField("certName", certName).
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WithField("fingerprint", fingerprint).
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WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).Error("Refusing to handshake with myself")
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return
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}
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myIndex, err := generateIndex()
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if err != nil {
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l.WithError(err).WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
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