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wgengine/magicsock: add HTML debug handler to see magicsock state

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Change-Id: Ibc46f4e9651e1c86ec6f5d139f5e9bdc7a488415
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2021-12-21 10:26:13 -08:00
committed by Brad Fitzpatrick
parent c7f5bc0f69
commit ae319b4636
3 changed files with 228 additions and 1 deletions
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9
cmd/tailscaled/tailscaled.go
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@@ -295,7 +295,6 @@ func run() error {
var debugMux *http.ServeMux
if args.debug != "" {
debugMux = newDebugMux()
go runDebugServer(debugMux, args.debug)
}
linkMon, err := monitor.New(logf)
@@ -314,6 +313,14 @@ func run() error {
if _, ok := e.(wgengine.ResolvingEngine).GetResolver(); !ok {
panic("internal error: exit node resolver not wired up")
}
if debugMux != nil {
if ig, ok := e.(wgengine.InternalsGetter); ok {
if _, mc, ok := ig.GetInternals(); ok {
debugMux.HandleFunc("/debug/magicsock", mc.ServeHTTPDebug)
}
}
go runDebugServer(debugMux, args.debug)
}
ns, err := newNetstack(logf, dialer, e)
if err != nil {