From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 13 Apr 2021 07:24:52 +0000 (+0900)
Subject: network: dhcp4: ignore null dns address
X-Git-Tag: v249-rc1~343^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3e429683428182e7f9038179bd1c86edca8e0a4d;p=thirdparty%2Fsystemd.git

network: dhcp4: ignore null dns address
---

diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c
index 4488f27b6c2..75ee2ea8ad3 100644
--- a/src/network/networkd-dhcp4.c
+++ b/src/network/networkd-dhcp4.c
@@ -519,6 +519,9 @@ static int link_set_dns_routes(Link *link, const struct in_addr *gw) {
         route->mtu = link->network->dhcp_route_mtu;
 
         for (int i = 0; i < n; i ++) {
+                if (in4_addr_is_null(&dns[i]))
+                        continue;
+
                 route->dst.in = dns[i];
 
                 r = dhcp_route_configure_auto(route, link, gw);