return false;
}
-int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret) {
+int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags) {
DnsResourceRecord *rr;
+ DnsAnswerFlags rr_flags;
int r;
assert(key);
if (key->type == DNS_TYPE_SOA)
return 0;
- DNS_ANSWER_FOREACH(rr, a) {
+ DNS_ANSWER_FOREACH_FLAGS(rr, rr_flags, a) {
r = dns_resource_key_match_soa(key, rr->key);
if (r < 0)
return r;
if (r > 0) {
if (ret)
*ret = rr;
+ if (flags)
+ *flags = rr_flags;
return 1;
}
}
int dns_answer_contains_key(DnsAnswer *a, const DnsResourceKey *key, DnsAnswerFlags *combined_flags);
int dns_answer_contains_nsec_or_nsec3(DnsAnswer *a);
-int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret);
+int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags);
int dns_answer_find_cname_or_dname(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags);
int dns_answer_merge(DnsAnswer *a, DnsAnswer *b, DnsAnswer **ret);
* matching SOA record in the packet is used to to enable
* negative caching. */
- r = dns_answer_find_soa(answer, key, &soa);
+ r = dns_answer_find_soa(answer, key, &soa, &flags);
if (r < 0)
goto fail;
if (r == 0)
return 0;
+ /* Refuse using the SOA data if it is unsigned, but the key is
+ * signed */
+ if (authenticated && (flags & DNS_ANSWER_AUTHENTICATED) == 0)
+ return 0;
+
r = dns_cache_put_negative(c, key, rcode, authenticated, timestamp, MIN(soa->soa.minimum, soa->ttl), owner_family, owner_address);
if (r < 0)
goto fail;