This vendor import was requested by glebius@ as it should fix unbound crashes. Reported by: glebius MFC after: 1 week
98 lines
3.7 KiB
C
98 lines
3.7 KiB
C
/*
|
|
* ipsecmod/ipsecmod.h - facilitate opportunistic IPsec module
|
|
*
|
|
* Copyright (c) 2017, 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 facilitates opportunistic IPsec. It does so
|
|
* by also querying for the IPSECKEY for A/AAAA queries and calling a
|
|
* configurable hook (eg. signaling an IKE daemon) before replying.
|
|
*/
|
|
|
|
#ifndef IPSECMOD_H
|
|
#define IPSECMOD_H
|
|
#include "util/module.h"
|
|
#include "util/rbtree.h"
|
|
|
|
/**
|
|
* The global variable environment contents for the ipsecmod
|
|
* Shared between threads, this represents long term information.
|
|
*/
|
|
struct ipsecmod_env {
|
|
/** White listed domains for ipsecmod. */
|
|
rbtree_type* whitelist;
|
|
};
|
|
|
|
/**
|
|
* Per query state for the ipsecmod module.
|
|
*/
|
|
struct ipsecmod_qstate {
|
|
/** State of the IPsec module. */
|
|
/** NOTE: This value is copied here from the configuration so that a change
|
|
* with unbound-control would not complicate an already running mesh. */
|
|
int enabled;
|
|
/** If the qname is whitelisted or not. */
|
|
/** NOTE: No whitelist means all qnames are whitelisted. */
|
|
int is_whitelisted;
|
|
/** Pointer to IPSECKEY rrset allocated in the qstate region. NULL if there
|
|
* was no IPSECKEY reply from the subquery. */
|
|
struct ub_packed_rrset_key* ipseckey_rrset;
|
|
/** If the IPSECKEY subquery has finished. */
|
|
int ipseckey_done;
|
|
};
|
|
|
|
/** Init the ipsecmod module */
|
|
int ipsecmod_init(struct module_env* env, int id);
|
|
/** Deinit the ipsecmod module */
|
|
void ipsecmod_deinit(struct module_env* env, int id);
|
|
/** Operate on an event on a query (in qstate). */
|
|
void ipsecmod_operate(struct module_qstate* qstate, enum module_ev event,
|
|
int id, struct outbound_entry* outbound);
|
|
/** Subordinate query done, inform this super request of its conclusion */
|
|
void ipsecmod_inform_super(struct module_qstate* qstate, int id,
|
|
struct module_qstate* super);
|
|
/** clear the ipsecmod query-specific contents out of qstate */
|
|
void ipsecmod_clear(struct module_qstate* qstate, int id);
|
|
/** return memory estimate for the ipsecmod module */
|
|
size_t ipsecmod_get_mem(struct module_env* env, int id);
|
|
|
|
/**
|
|
* Get the function block with pointers to the ipsecmod functions
|
|
* @return the function block for "ipsecmod".
|
|
*/
|
|
struct module_func_block* ipsecmod_get_funcblock(void);
|
|
|
|
#endif /* IPSECMOD_H */
|