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From 9be04e6fac3f4ee8fa08d3671dac41d2156d2ced Mon Sep 17 00:00:00 2001
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From: Wouter Wijngaards <wouter@nlnetlabs.nl>
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Date: Thu, 27 Sep 2018 08:19:29 +0000
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Subject: [PATCH] - Fix #4188: IPv6 forwarders without ipv6 result in SERVFAIL,
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fixes qname minimisation with a forwarder when connectivity has issues
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from rejecting responses.
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git-svn-id: file:///svn/unbound/trunk@4916 be551aaa-1e26-0410-a405-d3ace91eadb9
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---
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iterator/iterator.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/iterator/iterator.c b/iterator/iterator.c
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index 7baf92b7..2f26bd33 100644
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--- a/iterator/iterator.c
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+++ b/iterator/iterator.c
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@@ -2174,7 +2174,8 @@ processQueryTargets(struct module_qstate* qstate, struct iter_qstate* iq,
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return 0;
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}
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- if(iq->minimisation_state == INIT_MINIMISE_STATE) {
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+ if(iq->minimisation_state == INIT_MINIMISE_STATE
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+ && !(iq->chase_flags & BIT_RD)) {
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/* (Re)set qinfo_out to (new) delegation point, except when
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* qinfo_out is already a subdomain of dp. This happens when
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* increasing by more than one label at once (QNAMEs with more
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@@ -2715,7 +2716,8 @@ processQueryResponse(struct module_qstate* qstate, struct iter_qstate* iq,
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sock_list_insert(&qstate->reply_origin,
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&qstate->reply->addr, qstate->reply->addrlen,
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qstate->region);
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- if(iq->minimisation_state != DONOT_MINIMISE_STATE) {
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+ if(iq->minimisation_state != DONOT_MINIMISE_STATE
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+ && !(iq->chase_flags & BIT_RD)) {
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if(FLAGS_GET_RCODE(iq->response->rep->flags) !=
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LDNS_RCODE_NOERROR) {
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if(qstate->env->cfg->qname_minimisation_strict)
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--
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2.14.4
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