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https://github.com/archlinuxarm/PKGBUILDs.git
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46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
From 0e5dd25fc5c70d656666f6d537e93cf346e7f419 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Witold=20Kr=C4=99cicki?= <wpk@isc.org>
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Date: Thu, 3 Jan 2019 13:06:39 +0100
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Subject: [PATCH] When a forwarder fails and we're not in a forward-only mode
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we go back to regular resolution. When this happens the fetch timer is
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already running, and we might end up in a situation where we we create a
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fetch for qname-minimized query and after that the timer is triggered and the
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query is retried (fctx_try) - which causes relaunching of qname-minimization
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fetch - and since we already have a qmin fetch for this fctx - assertion
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failure.
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diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
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index 8beecbcb07..ea122bd30c 100644
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--- a/lib/dns/resolver.c
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+++ b/lib/dns/resolver.c
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@@ -4012,6 +4012,7 @@ fctx_try(fetchctx_t *fctx, bool retrying, bool badcache) {
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options &= ~DNS_FETCHOPT_QMINIMIZE;
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fctx_increference(fctx);
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task = res->buckets[bucketnum].task;
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+ fctx_stoptimer(fctx);
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result = dns_resolver_createfetch(fctx->res, &fctx->qminname,
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fctx->qmintype, &fctx->domain,
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&fctx->nameservers, NULL, NULL, 0,
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@@ -4343,13 +4344,12 @@ fctx_timeout(isc_task_t *task, isc_event_t *event) {
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* timer.
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*/
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result = fctx_starttimer(fctx);
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- if (result != ISC_R_SUCCESS)
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+ if (result != ISC_R_SUCCESS) {
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fctx_done(fctx, result, __LINE__);
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- else
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- /*
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- * Keep trying.
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- */
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+ } else {
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+ /* Keep trying */
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fctx_try(fctx, true, false);
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+ }
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}
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isc_event_free(&event);
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--
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2.18.1
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