use of org.minidns.record.DelegatingDnssecRR in project minidns by MiniDNS.
the class DNSSECClient method verifySecureEntryPoint.
private Set<UnverifiedReason> verifySecureEntryPoint(Question q, final Record<DNSKEY> sepRecord) throws IOException {
final DNSKEY dnskey = sepRecord.payloadData;
Set<UnverifiedReason> unverifiedReasons = new HashSet<>();
Set<UnverifiedReason> activeReasons = new HashSet<>();
if (knownSeps.containsKey(sepRecord.name)) {
if (dnskey.keyEquals(knownSeps.get(sepRecord.name))) {
return unverifiedReasons;
} else {
unverifiedReasons.add(new UnverifiedReason.ConflictsWithSep(sepRecord));
return unverifiedReasons;
}
}
// configured with one and we can abort stating the reason.
if (sepRecord.name.isRootLabel()) {
unverifiedReasons.add(new UnverifiedReason.NoRootSecureEntryPointReason());
return unverifiedReasons;
}
DelegatingDnssecRR delegation = null;
DNSSECMessage dsResp = queryDnssec(sepRecord.name, TYPE.DS);
if (dsResp == null) {
LOGGER.fine("There is no DS record for " + sepRecord.name + ", server gives no result");
} else {
unverifiedReasons.addAll(dsResp.getUnverifiedReasons());
for (Record<? extends Data> record : dsResp.answerSection) {
Record<DS> dsRecord = record.ifPossibleAs(DS.class);
if (dsRecord == null)
continue;
DS ds = dsRecord.payloadData;
if (dnskey.getKeyTag() == ds.keyTag) {
delegation = ds;
activeReasons = dsResp.getUnverifiedReasons();
break;
}
}
if (delegation == null) {
LOGGER.fine("There is no DS record for " + sepRecord.name + ", server gives empty result");
}
}
if (delegation == null && dlv != null && !dlv.isChildOf(sepRecord.name)) {
DNSSECMessage dlvResp = queryDnssec(DNSName.from(sepRecord.name, dlv), TYPE.DLV);
if (dlvResp != null) {
unverifiedReasons.addAll(dlvResp.getUnverifiedReasons());
for (Record<? extends Data> record : dlvResp.answerSection) {
Record<DLV> dlvRecord = record.ifPossibleAs(DLV.class);
if (dlvRecord == null)
continue;
if (sepRecord.payloadData.getKeyTag() == dlvRecord.payloadData.keyTag) {
LOGGER.fine("Found DLV for " + sepRecord.name + ", awesome.");
delegation = dlvRecord.payloadData;
activeReasons = dlvResp.getUnverifiedReasons();
break;
}
}
}
}
if (delegation != null) {
UnverifiedReason unverifiedReason = verifier.verify(sepRecord, delegation);
if (unverifiedReason != null) {
unverifiedReasons.add(unverifiedReason);
} else {
unverifiedReasons = activeReasons;
}
} else if (unverifiedReasons.isEmpty()) {
unverifiedReasons.add(new NoTrustAnchorReason(sepRecord.name.ace));
}
return unverifiedReasons;
}
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