mirror of https://github.com/slackhq/nebula.git
29 lines
705 B
Go
29 lines
705 B
Go
package nebula
|
|
|
|
const (
|
|
handshakeIXPSK0 = 0
|
|
handshakeXXPSK0 = 1
|
|
)
|
|
|
|
func HandleIncomingHandshake(f *Interface, addr *udpAddr, packet []byte, h *Header, hostinfo *HostInfo) {
|
|
if !f.lightHouse.remoteAllowList.Allow(addr.IP) {
|
|
f.l.WithField("udpAddr", addr).Debug("lighthouse.remote_allow_list denied incoming handshake")
|
|
return
|
|
}
|
|
|
|
switch h.Subtype {
|
|
case handshakeIXPSK0:
|
|
switch h.MessageCounter {
|
|
case 1:
|
|
ixHandshakeStage1(f, addr, packet, h)
|
|
case 2:
|
|
newHostinfo, _ := f.handshakeManager.QueryIndex(h.RemoteIndex)
|
|
tearDown := ixHandshakeStage2(f, addr, newHostinfo, packet, h)
|
|
if tearDown && newHostinfo != nil {
|
|
f.handshakeManager.DeleteHostInfo(newHostinfo)
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|