61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* Copyright (C) CZ.NIC, z.s.p.o. <knot-resolver@labs.nic.cz>
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#pragma once
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#include "lib/defines.h"
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#include "lib/generic/trie.h"
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#include <libknot/rrset.h>
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/**
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* Find TA RRSet by name.
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* @param trust_anchors trust store
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* @param name name of the TA
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* @return non-empty RRSet or NULL
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*/
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KR_EXPORT
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knot_rrset_t *kr_ta_get(trie_t *trust_anchors, const knot_dname_t *name);
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/**
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* Add TA to trust store. DS or DNSKEY types are supported.
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* @param trust_anchors trust store
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* @param name name of the TA
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* @param type RR type of the TA (DS or DNSKEY)
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* @param ttl
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* @param rdata
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* @param rdlen
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* @return 0 or an error
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*/
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KR_EXPORT
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int kr_ta_add(trie_t *trust_anchors, const knot_dname_t *name, uint16_t type,
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uint32_t ttl, const uint8_t *rdata, uint16_t rdlen);
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struct kr_context;
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/**
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* Return pointer to the name of the closest positive trust anchor or NULL.
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*
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* "Closest" means on path towards root. Closer negative anchor results into NULL.
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* @param type serves as a shorthand because DS needs to start one level higher.
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*/
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KR_EXPORT KR_PURE
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const knot_dname_t * kr_ta_closest(const struct kr_context *ctx, const knot_dname_t *name,
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const uint16_t type);
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/**
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* Remove TA from trust store.
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* @param trust_anchors trust store
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* @param name name of the TA
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* @return 0 or an error
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*/
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KR_EXPORT
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int kr_ta_del(trie_t *trust_anchors, const knot_dname_t *name);
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/**
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* Clear trust store.
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* @param trust_anchors trust store
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*/
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KR_EXPORT
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void kr_ta_clear(trie_t *trust_anchors);
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