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https://github.com/cwinfo/yggdrasil-go.git
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don't allow ygg tcp connections to/from a local ygg address
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parent
45810fa184
commit
8345ae1fa3
@ -25,6 +25,7 @@ import (
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"golang.org/x/net/proxy"
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"github.com/yggdrasil-network/yggdrasil-go/src/address"
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"github.com/yggdrasil-network/yggdrasil-go/src/util"
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)
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@ -397,6 +398,18 @@ func (t *tcp) handler(sock net.Conn, incoming bool, options tcpOptions) {
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local, _, _ = net.SplitHostPort(sock.LocalAddr().String())
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remote, _, _ = net.SplitHostPort(sock.RemoteAddr().String())
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}
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localIP := net.ParseIP(local)
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if localIP = localIP.To16(); localIP != nil {
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var laddr address.Address
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var lsubnet address.Subnet
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copy(laddr[:], localIP)
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copy(lsubnet[:], localIP)
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if laddr.IsValid() || lsubnet.IsValid() {
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// The local address is with the network address/prefix range
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// This would route ygg over ygg, which we don't want
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return
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}
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}
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force := net.ParseIP(strings.Split(remote, "%")[0]).IsLinkLocalUnicast()
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link, err := t.link.core.link.create(&stream, name, proto, local, remote, incoming, force, options.linkOptions)
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if err != nil {
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