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ipn/ipnlocal: check quad100 Host header in info page

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Updates tailscale/corp#7948

Change-Id: I0ab61c764bff9ba8afaf9070db73e971eb018477
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2022-11-16 08:16:17 -08:00 committed by Brad Fitzpatrick
parent 49b0ce8180
commit 4fc8538e2f
1 changed files with 6 additions and 0 deletions
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6
ipn/ipnlocal/local.go
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@ -3906,6 +3906,12 @@ func (b *LocalBackend) handleQuad100Port80Conn(w http.ResponseWriter, r *http.Re
http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
return
}
switch r.Host {
case "", tsaddr.TailscaleServiceIP().String(), tsaddr.TailscaleServiceIPv6().String():
default:
http.Error(w, "bad request", http.StatusBadRequest)
return
}
b.mu.Lock()
defer b.mu.Unlock()