Merge pull request #30691 from yuwata/resolve-ipv6

resolve: do not listen to IPv6 when disabled by sysctl

src/resolve/resolved-llmnr.c

@@ -45,7 +45,7 @@ int manager_llmnr_start(Manager *m) {
         if (r < 0)
                 return r;
 
-        if (socket_ipv6_is_supported()) {
+        if (socket_ipv6_is_enabled()) {
                 r = manager_llmnr_ipv6_udp_fd(m);
                 if (r == -EADDRINUSE)
                         goto eaddrinuse;

src/resolve/resolved-mdns.c

@@ -36,7 +36,7 @@ int manager_mdns_start(Manager *m) {
         if (r < 0)
                 return r;
 
-        if (socket_ipv6_is_supported()) {
+        if (socket_ipv6_is_enabled()) {
                 r = manager_mdns_ipv6_fd(m);
                 if (r == -EADDRINUSE)
                         goto eaddrinuse;

units/systemd-resolved.service.in

@@ -15,7 +15,7 @@ Documentation=https://www.freedesktop.org/wiki/Software/systemd/writing-network-
 Documentation=https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
 
 DefaultDependencies=no
-After=systemd-sysusers.service
+After=systemd-sysctl.service systemd-sysusers.service
 Before=sysinit.target network.target nss-lookup.target shutdown.target initrd-switch-root.target
 Conflicts=shutdown.target initrd-switch-root.target
 Wants=nss-lookup.target