TrueCloudLab/coredns
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retain response AD bit if requestor's AD bit was set (#5191)

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Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
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Chris O'Haver 2022-06-17 15:47:35 -04:00 • committed by GitHub
parent d679f2e7d0
commit d60ce0c8d4
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4 changed files with 14 additions and 8 deletions
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5
plugin/cache/handler.go vendored
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@ -17,6 +17,7 @@ func (c *Cache) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
rc := r.Copy() // We potentially modify r, to prevent other plugins from seeing this (r is a pointer), copy r into rc.
state := request.Request{W: w, Req: rc}
do := state.Do()
ad := r.AuthenticatedData
zone := plugin.Zones(c.Zones).Matches(state.Name())
if zone == "" {
@ -36,7 +37,7 @@ func (c *Cache) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
ttl := 0
i := c.getIgnoreTTL(now, state, server)
if i == nil {
crr := &ResponseWriter{ResponseWriter: w, Cache: c, state: state, server: server, do: do}
crr := &ResponseWriter{ResponseWriter: w, Cache: c, state: state, server: server, do: do, ad: ad}
return c.doRefresh(ctx, state, crr)
}
ttl = i.ttl(now)
@ -62,7 +63,7 @@ func (c *Cache) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
cw := newPrefetchResponseWriter(server, state, c)
go c.doPrefetch(ctx, state, cw, i, now)
}
resp := i.toMsg(r, now, do)
resp := i.toMsg(r, now, do, ad)
w.WriteMsg(resp)
return dns.RcodeSuccess, nil