From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 11 Nov 2020 20:20:15 +0000 (+0100)
Subject: resolved: insert large dgram size into EDNS0 only when in LARGE UDP mode
X-Git-Tag: v248-rc1~598
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0a489d3f5d2a6ef8667224d838044a520e98ab37;p=thirdparty%2Fsystemd.git

resolved: insert large dgram size into EDNS0 only when in LARGE UDP mode

Specifically, in TLS-DO there's no reason to set the exotic dgram size.
---

diff --git a/src/resolve/resolved-dns-server.c b/src/resolve/resolved-dns-server.c
index 8112374062e..541266ff9d6 100644
--- a/src/resolve/resolved-dns-server.c
+++ b/src/resolve/resolved-dns-server.c
@@ -530,7 +530,7 @@ int dns_server_adjust_opt(DnsServer *server, DnsPacket *packet, DnsServerFeature
 
         edns_do = level >= DNS_SERVER_FEATURE_LEVEL_DO;
 
-        if (level >= DNS_SERVER_FEATURE_LEVEL_LARGE)
+        if (level == DNS_SERVER_FEATURE_LEVEL_LARGE)
                 packet_size = DNS_PACKET_UNICAST_SIZE_LARGE_MAX;
         else
                 packet_size = server->received_udp_packet_max;