diff --git a/src/resolve/resolved-dns-scope.c b/src/resolve/resolved-dns-scope.c index 69101fb5a2..16c5e0094c 100644 --- a/src/resolve/resolved-dns-scope.c +++ b/src/resolve/resolved-dns-scope.c @@ -626,10 +626,6 @@ DnsScopeMatch dns_scope_good_domain( if ((SD_RESOLVED_FLAGS_MAKE(s->protocol, s->family, false, false) & flags) == 0) return DNS_SCOPE_NO; - /* Never resolve empty name. */ - if (dns_name_is_empty(domain)) - return DNS_SCOPE_NO; - /* Never resolve any loopback hostname or IP address via DNS, LLMNR or mDNS. Instead, always rely on * synthesized RRs for these. */ if (is_localhost(domain) || @@ -652,6 +648,22 @@ DnsScopeMatch dns_scope_good_domain( DnsScopeMatch m; int n_best = -1; + if (dns_name_is_empty(domain)) { + DnsResourceKey *t; + bool found = false; + + /* Refuse empty name if only A and/or AAAA records are requested. */ + + DNS_QUESTION_FOREACH(t, question) + if (!IN_SET(t->type, DNS_TYPE_A, DNS_TYPE_AAAA)) { + found = true; + break; + } + + if (!found) + return DNS_SCOPE_NO; + } + /* Never route things to scopes that lack DNS servers */ if (!dns_scope_get_dns_server(s)) return DNS_SCOPE_NO;