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diff --git a/external/unbound/validator/val_kentry.h b/external/unbound/validator/val_kentry.h
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index ade65571a..000000000
--- a/external/unbound/validator/val_kentry.h
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * validator/val_kentry.h - validator key entry definition.
- *
- * Copyright (c) 2007, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * \file
- *
- * This file contains functions for dealing with validator key entries.
- */
-
-#ifndef VALIDATOR_VAL_KENTRY_H
-#define VALIDATOR_VAL_KENTRY_H
-struct packed_rrset_data;
-struct regional;
-struct ub_packed_rrset_key;
-#include "util/storage/lruhash.h"
-
-/**
- * A key entry for the validator.
- * This may or may not be a trusted key.
- * This is what is stored in the key cache.
- * This is the key part for the cache; the key entry key.
- */
-struct key_entry_key {
-	/** lru hash entry */
-	struct lruhash_entry entry;
-	/** name of the key */
-	uint8_t* name;
-	/** length of name */
-	size_t namelen;
-	/** class of the key, host byteorder */
-	uint16_t key_class;
-};
-
-/**
- * Key entry for the validator.
- * Contains key status.
- * This is the data part for the cache, the key entry data.
- *
- * Can be in three basic states:
- * 	isbad=0:		good key
- * 	isbad=1:		bad key
- * 	isbad=0 && rrset=0:	insecure space.
- */
-struct key_entry_data {
-	/** the TTL of this entry (absolute time) */
-	time_t ttl;
-	/** the key rrdata. can be NULL to signal keyless name. */
-	struct packed_rrset_data* rrset_data;
-	/** not NULL sometimes to give reason why bogus */
-	char* reason;
-	/** list of algorithms signalled, ends with 0, or NULL */
-	uint8_t* algo;
-	/** DNS RR type of the rrset data (host order) */
-	uint16_t rrset_type;
-	/** if the key is bad: Bogus or malformed */
-	uint8_t isbad;
-};
-
-/** function for lruhash operation */
-size_t key_entry_sizefunc(void* key, void* data);
-
-/** function for lruhash operation */
-int key_entry_compfunc(void* k1, void* k2);
-
-/** function for lruhash operation */
-void key_entry_delkeyfunc(void* key, void* userarg);
-
-/** function for lruhash operation */
-void key_entry_deldatafunc(void* data, void* userarg);
-
-/** calculate hash for key entry 
- * @param kk: key entry. The lruhash entry.hash value is filled in.
- */
-void key_entry_hash(struct key_entry_key* kk);
-
-/**
- * Copy a key entry, to be region-allocated.
- * @param kkey: the key entry key (and data pointer) to copy.
- * @param region: where to allocate it
- * @return newly region-allocated entry or NULL on a failure to allocate.
- */
-struct key_entry_key* key_entry_copy_toregion(struct key_entry_key* kkey, 
-	struct regional* region);
-
-/**
- * Copy a key entry, malloced.
- * @param kkey: the key entry key (and data pointer) to copy.
- * @return newly allocated entry or NULL on a failure to allocate memory.
- */
-struct key_entry_key* key_entry_copy(struct key_entry_key* kkey);
-
-/**
- * See if this is a null entry. Does not do locking.
- * @param kkey: must have data pointer set correctly
- * @return true if it is a NULL rrset entry.
- */
-int key_entry_isnull(struct key_entry_key* kkey);
-
-/**
- * See if this entry is good. Does not do locking.
- * @param kkey: must have data pointer set correctly
- * @return true if it is good.
- */
-int key_entry_isgood(struct key_entry_key* kkey);
-
-/**
- * See if this entry is bad. Does not do locking.
- * @param kkey: must have data pointer set correctly
- * @return true if it is bad.
- */
-int key_entry_isbad(struct key_entry_key* kkey);
-
-/**
- * Set reason why a key is bad.
- * @param kkey: bad key.
- * @param reason: string to attach, you must allocate it.
- *    Not safe to call twice unless you deallocate it yourself.
- */
-void key_entry_set_reason(struct key_entry_key* kkey, char* reason);
-
-/**
- * Get reason why a key is bad.
- * @param kkey: bad key
- * @return pointer to string.
- *    String is part of key entry and is deleted with it.
- */
-char* key_entry_get_reason(struct key_entry_key* kkey);
-
-/**
- * Create a null entry, in the given region.
- * @param region: where to allocate
- * @param name: the key name
- * @param namelen: length of name
- * @param dclass: class of key entry. (host order);
- * @param ttl: what ttl should the key have. relative.
- * @param now: current time (added to ttl).
- * @return new key entry or NULL on alloc failure
- */
-struct key_entry_key* key_entry_create_null(struct regional* region,
-	uint8_t* name, size_t namelen, uint16_t dclass, time_t ttl, 
-	time_t now);
-
-/**
- * Create a key entry from an rrset, in the given region.
- * @param region: where to allocate.
- * @param name: the key name
- * @param namelen: length of name
- * @param dclass: class of key entry. (host order);
- * @param rrset: data for key entry. This is copied to the region.
- * @param sigalg: signalled algorithm list (or NULL).
- * @param now: current time (added to ttl of rrset)
- * @return new key entry or NULL on alloc failure
- */
-struct key_entry_key* key_entry_create_rrset(struct regional* region,
-        uint8_t* name, size_t namelen, uint16_t dclass, 
-	struct ub_packed_rrset_key* rrset, uint8_t* sigalg, time_t now);
-
-/**
- * Create a bad entry, in the given region.
- * @param region: where to allocate
- * @param name: the key name
- * @param namelen: length of name
- * @param dclass: class of key entry. (host order);
- * @param ttl: what ttl should the key have. relative.
- * @param now: current time (added to ttl).
- * @return new key entry or NULL on alloc failure
- */
-struct key_entry_key* key_entry_create_bad(struct regional* region,
-	uint8_t* name, size_t namelen, uint16_t dclass, time_t ttl,
-	time_t now);
-
-/**
- * Obtain rrset from a key entry, allocated in region.
- * @param kkey: key entry to convert to a rrset.
- * @param region: where to allocate rrset
- * @return rrset copy; if no rrset or alloc error returns NULL.
- */
-struct ub_packed_rrset_key* key_entry_get_rrset(struct key_entry_key* kkey,
-	struct regional* region);
-
-/**
- * Get keysize of the keyentry.
- * @param kkey: key, must be a good key, with contents.
- * @return size in bits of the key.
- */
-size_t key_entry_keysize(struct key_entry_key* kkey);
-
-#endif /* VALIDATOR_VAL_KENTRY_H */