30 lines
814 B
Go
30 lines
814 B
Go
package nebula
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import (
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"github.com/slackhq/nebula/header"
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"github.com/slackhq/nebula/udp"
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)
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func HandleIncomingHandshake(f *Interface, addr *udp.Addr, packet []byte, h *header.H, hostinfo *HostInfo) {
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// First remote allow list check before we know the vpnIp
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if !f.lightHouse.remoteAllowList.AllowUnknownVpnIp(addr.IP) {
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f.l.WithField("udpAddr", addr).Debug("lighthouse.remote_allow_list denied incoming handshake")
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return
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}
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switch h.Subtype {
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case header.HandshakeIXPSK0:
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switch h.MessageCounter {
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case 1:
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ixHandshakeStage1(f, addr, packet, h)
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case 2:
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newHostinfo, _ := f.handshakeManager.QueryIndex(h.RemoteIndex)
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tearDown := ixHandshakeStage2(f, addr, newHostinfo, packet, h)
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if tearDown && newHostinfo != nil {
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f.handshakeManager.DeleteHostInfo(newHostinfo)
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}
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}
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}
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}
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