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b5c9a8caad
Commit ba91243542 causes the resolver to
respond to a client query with FORMERR when all upstream queries sent to
the servers authoritative for QNAME elicit FORMERR responses. This
happens because resolver code returns DNS_R_FORMERR in such a case and
dns_result_torcode() acts as a pass-through for all arguments which are
already a valid RCODE.
The correct RCODE to set in the response returned to the client in the
case described above is SERVFAIL. Make sure this happens by overriding
the RCODE in query_gotanswer(), on the grounds that any format errors in
the client query itself should be caught long before execution reaches
that point. This change should not reduce query error logging accuracy
as the resolver code itself reports the exact reason for returning a
DNS_R_FORMERR result using log_formerr().
28 lines
910 B
Text
28 lines
910 B
Text
; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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;
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; This Source Code Form is subject to the terms of the Mozilla Public
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; License, v. 2.0. If a copy of the MPL was not distributed with this
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; file, You can obtain one at http://mozilla.org/MPL/2.0/.
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;
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; See the COPYRIGHT file distributed with this work for additional
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; information regarding copyright ownership.
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$TTL 300
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. IN SOA marka.isc.org. a.root.servers.nil. (
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2010 ; serial
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600 ; refresh
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600 ; retry
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1200 ; expire
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600 ; minimum
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)
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. NS a.root-servers.nil.
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a.root-servers.nil. A 10.53.0.4
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all-cnames NS cname.tld
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delegation-only. NS ns.delegation-only.
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ns.delegation-only. A 10.53.0.6
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example.net. NS ns.example.net.
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ns.example.net. A 10.53.0.6
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no-questions. NS ns.no-questions.
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ns.no-questions. A 10.53.0.8
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formerr-to-all. NS ns.formerr-to-all.
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ns.formerr-to-all. A 10.53.0.8
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