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Strip EDNS0 options in responses

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This commit is contained in:
Frank Denis 2019-12-22 18:02:33 +01:00
parent 5118ed21fd
commit adb6dac420
3 changed files with 12 additions and 5 deletions
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4
dnscrypt-proxy/plugins.go
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@ -284,9 +284,6 @@ func (pluginsState *PluginsState) ApplyQueryPlugins(pluginsGlobals *PluginsGloba
}
func (pluginsState *PluginsState) ApplyResponsePlugins(pluginsGlobals *PluginsGlobals, packet []byte, ttl *uint32) ([]byte, error) {
if len(*pluginsGlobals.responsePlugins) == 0 && len(*pluginsGlobals.loggingPlugins) == 0 {
return packet, nil
}
msg := dns.Msg{Compress: true}
if err := msg.Unpack(packet); err != nil {
if len(packet) >= MinDNSPacketSize && HasTCFlag(packet) {
@ -304,6 +301,7 @@ func (pluginsState *PluginsState) ApplyResponsePlugins(pluginsGlobals *PluginsGl
default:
pluginsState.returnCode = PluginsReturnCodeResponseError
}
removeEDNS0Options(&msg)
pluginsGlobals.RLock()
defer pluginsGlobals.RUnlock()
for _, plugin := range *pluginsGlobals.responsePlugins {