1 files changed, 75 insertions, 0 deletions
diff --git a/lib/dnssec/ta.h b/lib/dnssec/ta.h
new file mode 100644
index 0000000..f8fc93a
--- /dev/null
+++ b/lib/dnssec/ta.h
@@ -0,0 +1,75 @@
+/*  Copyright (C) 2015-2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+ *  SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include "lib/generic/map.h"
+#include <libknot/rrset.h>
+
+/**
+ * Find TA RRSet by name.
+ * @param  trust_anchors trust store
+ * @param  name          name of the TA
+ * @return non-empty RRSet or NULL
+ */
+KR_EXPORT
+knot_rrset_t *kr_ta_get(map_t *trust_anchors, const knot_dname_t *name);
+
+/**
+ * Add TA to trust store. DS or DNSKEY types are supported.
+ * @param  trust_anchors trust store
+ * @param  name          name of the TA
+ * @param  type          RR type of the TA (DS or DNSKEY)
+ * @param  ttl           
+ * @param  rdata         
+ * @param  rdlen         
+ * @return 0 or an error
+ */
+KR_EXPORT
+int kr_ta_add(map_t *trust_anchors, const knot_dname_t *name, uint16_t type,
+               uint32_t ttl, const uint8_t *rdata, uint16_t rdlen);
+
+/**
+ * Return true if the name is below/at any TA in the store.
+ * This can be useful to check if it's possible to validate a name beforehand.
+ * @param  trust_anchors trust store
+ * @param  name          name of the TA
+ * @return boolean
+ */
+KR_EXPORT KR_PURE
+int kr_ta_covers(map_t *trust_anchors, const knot_dname_t *name);
+
+struct kr_context;
+/**
+ * A wrapper around kr_ta_covers that is aware of negative TA and types.
+ */
+KR_EXPORT KR_PURE
+bool kr_ta_covers_qry(struct kr_context *ctx, const knot_dname_t *name,
+		      const uint16_t type);
+
+/**
+ * Remove TA from trust store.
+ * @param  trust_anchors trust store
+ * @param  name          name of the TA
+ * @return 0 or an error
+ */
+KR_EXPORT
+int kr_ta_del(map_t *trust_anchors, const knot_dname_t *name);
+
+/**
+ * Clear trust store.
+ * @param trust_anchors trust store
+ */
+KR_EXPORT
+void kr_ta_clear(map_t *trust_anchors);
+
+/**
+ * Return TA with the longest name that covers given name.
+ * @param trust_anchors trust store
+ * @param name name of the TA
+ * @return pointer to name or NULL.
+	   if not NULL, points inside the name parameter.
+ */
+KR_EXPORT
+const knot_dname_t *kr_ta_get_longest_name(map_t *trust_anchors, const knot_dname_t *name);