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TUN-6617: Dont fallback to http2 if QUIC conn was successful.

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cloudflared falls back aggressively to HTTP/2 protocol if a connection
attempt with QUIC failed. This was done to ensure that machines with UDP
egress disabled did not stop clients from connecting to the cloudlfare
edge. This PR improves on that experience by having cloudflared remember
if a QUIC connection was successful which implies UDP egress works. In
this case, cloudflared does not fallback to HTTP/2 and keeps trying to
connect to the edge with QUIC.
This commit is contained in:
Sudarsan Reddy
2022-08-11 13:31:35 +01:00
parent a768132d37
commit 679a89c7df
11 changed files with 133 additions and 87 deletions
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4
connection/observer.go
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@@ -55,8 +55,8 @@ func (o *Observer) sendRegisteringEvent(connIndex uint8) {
o.sendEvent(Event{Index: connIndex, EventType: RegisteringTunnel})
}
func (o *Observer) sendConnectedEvent(connIndex uint8, location string) {
o.sendEvent(Event{Index: connIndex, EventType: Connected, Location: location})
func (o *Observer) sendConnectedEvent(connIndex uint8, protocol Protocol, location string) {
o.sendEvent(Event{Index: connIndex, EventType: Connected, Protocol: protocol, Location: location})
}
func (o *Observer) SendURL(url string) {