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Refactor remotes and handshaking to give every address a fair shot (#437)

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This commit is contained in:
Nathan Brown
2021-04-14 13:50:09 -05:00
committed by GitHub
parent 20bef975cd
commit 710df6a876
25 changed files with 1561 additions and 1385 deletions
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9
outside.go
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@@ -132,6 +132,7 @@ func (f *Interface) readOutsidePackets(addr *udpAddr, out []byte, packet []byte,
f.connectionManager.In(hostinfo.hostId)
}
// closeTunnel closes a tunnel locally, it does not send a closeTunnel packet to the remote
func (f *Interface) closeTunnel(hostInfo *HostInfo) {
//TODO: this would be better as a single function in ConnectionManager that handled locks appropriately
f.connectionManager.ClearIP(hostInfo.hostId)
@@ -140,6 +141,11 @@ func (f *Interface) closeTunnel(hostInfo *HostInfo) {
f.hostMap.DeleteHostInfo(hostInfo)
}
// sendCloseTunnel is a helper function to send a proper close tunnel packet to a remote
func (f *Interface) sendCloseTunnel(h *HostInfo) {
f.send(closeTunnel, 0, h.ConnectionState, h, h.remote, []byte{}, make([]byte, 12, 12), make([]byte, mtu))
}
func (f *Interface) handleHostRoaming(hostinfo *HostInfo, addr *udpAddr) {
if hostDidRoam(hostinfo.remote, addr) {
if !f.lightHouse.remoteAllowList.Allow(addr.IP) {
@@ -160,9 +166,6 @@ func (f *Interface) handleHostRoaming(hostinfo *HostInfo, addr *udpAddr) {
remoteCopy := *hostinfo.remote
hostinfo.lastRoamRemote = &remoteCopy
hostinfo.SetRemote(addr)
if f.lightHouse.amLighthouse {
f.lightHouse.AddRemote(hostinfo.hostId, addr, false)
}
}
}