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diff --git a/external/unbound/validator/validator.h b/external/unbound/validator/validator.h
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--- a/external/unbound/validator/validator.h
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-/*
- * validator/validator.h - secure validator DNS query response module
- *
- * 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 a module that performs validation of DNS queries.
- * According to RFC 4034.
- */
-
-#ifndef VALIDATOR_VALIDATOR_H
-#define VALIDATOR_VALIDATOR_H
-#include "util/module.h"
-#include "util/data/msgreply.h"
-#include "validator/val_utils.h"
-struct val_anchors;
-struct key_cache;
-struct key_entry_key;
-struct val_neg_cache;
-struct config_strlist;
-
-/**
- * This is the TTL to use when a trust anchor fails to prime. A trust anchor
- * will be primed no more often than this interval.  Used when harden-
- * dnssec-stripped is off and the trust anchor fails.
- */
-#define NULL_KEY_TTL	60 /* seconds */
-
-/**
- * TTL for bogus key entries.  When a DS or DNSKEY fails in the chain of
- * trust the entire zone for that name is blacked out for this TTL.
- */
-#define BOGUS_KEY_TTL	60 /* seconds */
-
-/** max number of query restarts, number of IPs to probe */
-#define VAL_MAX_RESTART_COUNT 5
-
-/**
- * Global state for the validator. 
- */
-struct val_env {
-	/** key cache; these are validated keys. trusted keys only
-	 * end up here after being primed. */
-	struct key_cache* kcache;
-
-	/** aggressive negative cache. index into NSECs in rrset cache. */
-	struct val_neg_cache* neg_cache;
-
-	/** for debug testing a fixed validation date can be entered.
-	 * if 0, current time is used for rrsig validation */
-	int32_t date_override;
-
-	/** clock skew min for signatures */
-	int32_t skew_min;
-
-	/** clock skew max for signatures */
-	int32_t skew_max;
-
-	/** TTL for bogus data; used instead of untrusted TTL from data.
-	 * Bogus data will not be verified more often than this interval. 
-	 * seconds. */
-	uint32_t bogus_ttl;
-
-	/** If set, the validator should clean the additional section of
-	 * secure messages.
-	 */
-	int clean_additional;
-
-	/**
-	 * If set, the validator will not make messages bogus, instead
-	 * indeterminate is issued, so that no clients receive SERVFAIL.
-	 * This allows an operator to run validation 'shadow' without
-	 * hurting responses to clients.
-	 */
-	int permissive_mode;
-
-	/**
-	 * Number of entries in the NSEC3 maximum iteration count table.
-	 * Keep this table short, and sorted by size
-	 */
-	int nsec3_keyiter_count;
-
-	/**
-	 * NSEC3 maximum iteration count per signing key size.
-	 * This array contains key size values (in increasing order)
-	 */
-	size_t* nsec3_keysize;
-
-	/**
-	 * NSEC3 maximum iteration count per signing key size.
-	 * This array contains the maximum iteration count for the keysize
-	 * in the keysize array.
-	 */
-	size_t* nsec3_maxiter;
-
-	/** lock on bogus counter */
-	lock_basic_type bogus_lock;
-	/** number of times rrsets marked bogus */
-	size_t num_rrset_bogus;
-};
-
-/**
- * State of the validator for a query.
- */
-enum val_state {
-	/** initial state for validation */
-	VAL_INIT_STATE = 0,
-	/** find the proper keys for validation, follow trust chain */
-	VAL_FINDKEY_STATE,
-	/** validate the answer, using found key entry */
-	VAL_VALIDATE_STATE,
-	/** finish up */
-	VAL_FINISHED_STATE,
-	/** DLV lookup state, processing DLV queries */
-	VAL_DLVLOOKUP_STATE
-};
-
-/**
- * Per query state for the validator module.
- */
-struct val_qstate {
-	/** 
-	 * State of the validator module.
-	 */
-	enum val_state state;
-
-	/**
-	 * The original message we have been given to validate.
-	 */
-	struct dns_msg* orig_msg;
-
-	/**
-	 * The query restart count
-	 */
-	int restart_count;
-	/** The blacklist saved for chainoftrust elements */
-	struct sock_list* chain_blacklist;
-
-	/**
-	 * The query name we have chased to; qname after following CNAMEs
-	 */
-	struct query_info qchase;
-
-	/**
-	 * The chased reply, extract from original message. Can be:
-	 * 	o CNAME
-	 * 	o DNAME + CNAME
-	 * 	o answer 
-	 * 	plus authority, additional (nsecs) that have same signature.
-	 */
-	struct reply_info* chase_reply;
-
-	/**
-	 * The cname skip value; the number of rrsets that have been skipped
-	 * due to chasing cnames. This is the offset into the 
-	 * orig_msg->rep->rrsets array, into the answer section.
-	 * starts at 0 - for the full original message.
-	 * if it is >0 - qchase followed the cname, chase_reply setup to be
-	 * that message and relevant authority rrsets.
-	 *
-	 * The skip is also used for referral messages, where it will
-	 * range from 0, over the answer, authority and additional sections.
-	 */
-	size_t rrset_skip;
-
-	/** trust anchor name */
-	uint8_t* trust_anchor_name;
-	/** trust anchor labels */
-	int trust_anchor_labs;
-	/** trust anchor length */
-	size_t trust_anchor_len;
-
-	/** the DS rrset */
-	struct ub_packed_rrset_key* ds_rrset;
-
-	/** domain name for empty nonterminal detection */
-	uint8_t* empty_DS_name;
-	/** length of empty_DS_name */
-	size_t empty_DS_len;
-
-	/** the current key entry */
-	struct key_entry_key* key_entry;
-
-	/** subtype */
-	enum val_classification subtype;
-
-	/** signer name */
-	uint8_t* signer_name;
-	/** length of signer_name */
-	size_t signer_len;
-
-	/** true if this state is waiting to prime a trust anchor */
-	int wait_prime_ta;
-
-	/** have we already checked the DLV? */
-	int dlv_checked;
-	/** The name for which the DLV is looked up. For the current message
-	 * or for the current RRset (for CNAME, REFERRAL types).
-	 * If there is signer name, that may be it, else a domain name */
-	uint8_t* dlv_lookup_name;
-	/** length of dlv lookup name */
-	size_t dlv_lookup_name_len;
-	/** Name at which chain of trust stopped with insecure, starting DLV
-	 * DLV must result in chain going further down */
-	uint8_t* dlv_insecure_at;
-	/** length of dlv insecure point name */
-	size_t dlv_insecure_at_len;
-	/** status of DLV lookup. Indication to VAL_DLV_STATE what to do */
-	enum dlv_status {
-		dlv_error, /* server failure */
-		dlv_success, /* got a DLV */
-		dlv_ask_higher, /* ask again */
-		dlv_there_is_no_dlv /* got no DLV, sure of it */
-	} dlv_status;
-};
-
-/**
- * Get the validator function block.
- * @return: function block with function pointers to validator methods.
- */
-struct module_func_block* val_get_funcblock(void);
-
-/**
- * Get validator state as a string
- * @param state: to convert
- * @return constant string that is printable.
- */
-const char* val_state_to_string(enum val_state state);
-
-/** validator init */
-int val_init(struct module_env* env, int id);
-
-/** validator deinit */
-void val_deinit(struct module_env* env, int id);
-
-/** validator operate on a query */
-void val_operate(struct module_qstate* qstate, enum module_ev event, int id,
-        struct outbound_entry* outbound);
-
-/** 
- * inform validator super.
- * 
- * @param qstate: query state that finished.
- * @param id: module id.
- * @param super: the qstate to inform.
- */
-void val_inform_super(struct module_qstate* qstate, int id,
-	struct module_qstate* super);
-
-/** validator cleanup query state */
-void val_clear(struct module_qstate* qstate, int id);
-
-/**
- * Debug helper routine that assists worker in determining memory in 
- * use.
- * @param env: module environment 
- * @param id: module id.
- * @return memory in use in bytes.
- */
-size_t val_get_mem(struct module_env* env, int id);
-
-#endif /* VALIDATOR_VALIDATOR_H */