mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
|
From 94a8815892f538b334d640012eebcafc2c7fa284 Mon Sep 17 00:00:00 2001
|
||
|
From: Martin Wetterwald <martin.wetterwald@corp.ovh.com>
|
||
|
Date: Thu, 27 Oct 2016 12:17:03 +0200
|
||
|
Subject: [PATCH] Consider SERVFAIL as a non-successful response
|
||
|
|
||
|
Treat Servfail as a recoverable error instead of a hard error.
|
||
|
|
||
|
A misconfigured dns forwarder upstream can return a Servfail faster than
|
||
|
a correctly configured one.
|
||
|
|
||
|
In the case of a dnssec misbehaving, it will misbehave on all correctly
|
||
|
configured upstreams. In the case of a normal DNS query, the original
|
||
|
behavior of dnsmasq here was more robust.
|
||
|
|
||
|
---
|
||
|
src/forward.c | 3 ++-
|
||
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
||
|
|
||
|
--- a/src/forward.c
|
||
|
+++ b/src/forward.c
|
||
|
@@ -853,7 +853,8 @@ void reply_query(int fd, int family, tim
|
||
|
we get a good reply from another server. Kill it when we've
|
||
|
had replies from all to avoid filling the forwarding table when
|
||
|
everything is broken */
|
||
|
- if (forward->forwardall == 0 || --forward->forwardall == 1 || RCODE(header) != REFUSED)
|
||
|
+ if (forward->forwardall == 0 || --forward->forwardall == 1
|
||
|
+ || (RCODE(header) != REFUSED && RCODE(header) != SERVFAIL))
|
||
|
{
|
||
|
int check_rebind = 0, no_cache_dnssec = 0, cache_secure = 0, bogusanswer = 0;
|
||
|
|