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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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18
ipn/ipnlocal/peerapi.go
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@@ -553,6 +553,9 @@ func (h *peerAPIHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
case "/v0/metrics":
h.handleServeMetrics(w, r)
return
case "/v0/magicsock":
h.handleServeMagicsock(w, r)
return
}
who := h.peerUser.DisplayName
fmt.Fprintf(w, `<html>
@@ -781,6 +784,21 @@ func (h *peerAPIHandler) handleServeEnv(w http.ResponseWriter, r *http.Request)
json.NewEncoder(w).Encode(data)
}
func (h *peerAPIHandler) handleServeMagicsock(w http.ResponseWriter, r *http.Request) {
if !h.isSelf {
http.Error(w, "not owner", http.StatusForbidden)
return
}
eng := h.ps.b.e
if ig, ok := eng.(wgengine.InternalsGetter); ok {
if _, mc, ok := ig.GetInternals(); ok {
mc.ServeHTTPDebug(w, r)
return
}
}
http.Error(w, "miswired", 500)
}
func (h *peerAPIHandler) handleServeMetrics(w http.ResponseWriter, r *http.Request) {
if !h.isSelf {
http.Error(w, "not owner", http.StatusForbidden)