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ipn/ipnlocal: always stop the engine on auth when key has expired

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If seamless key renewal is enabled, we typically do not stop the engine
(deconfigure networking). However, if the node key has expired there is
no point in keeping the connection up, and it might actually prevent
key renewal if auth relies on endpoints routed via app connectors.

Fixes tailscale/corp#5800

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
This commit is contained in:
Anton Tolchanov 2024-04-19 13:43:07 +01:00 committed by Anton Tolchanov
parent 1d3e77f373
commit 31e6bdbc82
1 changed files with 5 additions and 2 deletions
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7
ipn/ipnlocal/local.go
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@ -2440,9 +2440,12 @@ func (b *LocalBackend) popBrowserAuthNow() {
b.authURL = "" // but NOT clearing authURLSticky
b.mu.Unlock()
b.logf("popBrowserAuthNow: url=%v", url != "")
b.logf("popBrowserAuthNow: url=%v, key-expired=%v, seamless-key-renewal=%v", url != "", b.keyExpired, b.seamlessRenewalEnabled())
if !b.seamlessRenewalEnabled() {
// Deconfigure the local network data plane if:
// - seamless key renewal is not enabled;
// - key is expired (in which case tailnet connectivity is down anyway).
if !b.seamlessRenewalEnabled() || b.keyExpired {
b.blockEngineUpdates(true)
b.stopEngineAndWait()
}