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TUN-9882: Improve metrics for datagram v3

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Adds new metrics for:
- Dropped UDP datagrams for reads and write paths
- Dropped ICMP packets for write paths
- Failures that preemptively close UDP flows

Closes TUN-9882
This commit is contained in:
Devin Carr
2025-10-08 12:17:23 -07:00
parent 51c5ef726c
commit 1cc15c6ffa
4 changed files with 94 additions and 26 deletions
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17
quic/v3/metrics_test.go
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@@ -1,10 +1,15 @@
package v3_test
import v3 "github.com/cloudflare/cloudflared/quic/v3"
type noopMetrics struct{}
func (noopMetrics) IncrementFlows(connIndex uint8) {}
func (noopMetrics) DecrementFlows(connIndex uint8) {}
func (noopMetrics) PayloadTooLarge(connIndex uint8) {}
func (noopMetrics) RetryFlowResponse(connIndex uint8) {}
func (noopMetrics) MigrateFlow(connIndex uint8) {}
func (noopMetrics) UnsupportedRemoteCommand(connIndex uint8, command string) {}
func (noopMetrics) IncrementFlows(connIndex uint8) {}
func (noopMetrics) DecrementFlows(connIndex uint8) {}
func (noopMetrics) FailedFlow(connIndex uint8) {}
func (noopMetrics) PayloadTooLarge(connIndex uint8) {}
func (noopMetrics) RetryFlowResponse(connIndex uint8) {}
func (noopMetrics) MigrateFlow(connIndex uint8) {}
func (noopMetrics) UnsupportedRemoteCommand(connIndex uint8, command string) {}
func (noopMetrics) DroppedUDPDatagram(connIndex uint8, reason v3.DroppedReason) {}
func (noopMetrics) DroppedICMPPackets(connIndex uint8, reason v3.DroppedReason) {}