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wgengine/magicsock: add envknob to toggle UDP relay feature (#16396)

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Updates tailscale/corp#27502

Signed-off-by: Jordan Whited <jordan@tailscale.com>
This commit is contained in:
Jordan Whited
2025-06-26 18:39:47 -07:00
committed by GitHub
parent 6feb3c35cb
commit b2bf7e988e
3 changed files with 10 additions and 3 deletions
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6
wgengine/magicsock/debugknobs.go
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@@ -62,6 +62,12 @@ var (
//
//lint:ignore U1000 used on Linux/Darwin only
debugPMTUD = envknob.RegisterBool("TS_DEBUG_PMTUD")
// debugAssumeUDPRelayCapable forces magicsock to assume that all peers are
// UDP relay capable clients and servers. This will eventually be replaced
// by a [tailcfg.CapabilityVersion] comparison. It enables early testing of
// the UDP relay feature before we have established related
// [tailcfg.CapabilityVersion]'s.
debugAssumeUDPRelayCapable = envknob.RegisterBool("TS_DEBUG_ASSUME_UDP_RELAY_CAPABLE")
// Hey you! Adding a new debugknob? Make sure to stub it out in the
// debugknobs_stubs.go file too.
)