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/*
* Written by Viktor Dukhovni (viktor@openssl.org) for the OpenSSL project
* 2015.
*/
/* ====================================================================
* Copyright (c) 2015 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#ifndef HEADER_INTERNAL_DANE_H
#define HEADER_INTERNAL_DANE_H
#include <openssl/safestack.h>
/*-
* Certificate usages:
* https://tools.ietf.org/html/rfc6698#section-2.1.1
*/
#define DANETLS_USAGE_PKIX_TA 0
#define DANETLS_USAGE_PKIX_EE 1
#define DANETLS_USAGE_DANE_TA 2
#define DANETLS_USAGE_DANE_EE 3
#define DANETLS_USAGE_LAST DANETLS_USAGE_DANE_EE
/*-
* Selectors:
* https://tools.ietf.org/html/rfc6698#section-2.1.2
*/
#define DANETLS_SELECTOR_CERT 0
#define DANETLS_SELECTOR_SPKI 1
#define DANETLS_SELECTOR_LAST DANETLS_SELECTOR_SPKI
/*-
* Matching types:
* https://tools.ietf.org/html/rfc6698#section-2.1.3
*/
#define DANETLS_MATCHING_FULL 0
#define DANETLS_MATCHING_2256 1
#define DANETLS_MATCHING_2512 2
#define DANETLS_MATCHING_LAST DANETLS_MATCHING_2512
typedef struct danetls_record_st {
uint8_t usage;
uint8_t selector;
uint8_t mtype;
unsigned char *data;
size_t dlen;
EVP_PKEY *spki;
} danetls_record;
DEFINE_STACK_OF(danetls_record)
/*
* Shared DANE context
*/
struct dane_ctx_st {
const EVP_MD **mdevp; /* mtype -> digest */
uint8_t *mdord; /* mtype -> preference */
uint8_t mdmax; /* highest supported mtype */
};
/*
* Per connection DANE state
*/
struct ssl_dane_st {
struct dane_ctx_st *dctx;
STACK_OF(danetls_record) *trecs;
STACK_OF(X509) *certs; /* DANE-TA(2) Cert(0) Full(0) certs */
danetls_record *mtlsa; /* Matching TLSA record */
X509 *mcert; /* DANE matched cert */
uint32_t umask; /* Usages present */
int mdpth; /* Depth of matched cert */
int pdpth; /* Depth of PKIX trust */
};
#define DANETLS_ENABLED(dane) \
((dane) != NULL && sk_danetls_record_num((dane)->trecs) > 0)
#define DANETLS_USAGE_BIT(u) (((uint32_t)1) << u)
#define DANETLS_PKIX_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_TA))
#define DANETLS_PKIX_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_EE))
#define DANETLS_DANE_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_TA))
#define DANETLS_DANE_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_EE))
#define DANETLS_PKIX_MASK (DANETLS_PKIX_TA_MASK | DANETLS_PKIX_EE_MASK)
#define DANETLS_DANE_MASK (DANETLS_DANE_TA_MASK | DANETLS_DANE_EE_MASK)
#define DANETLS_TA_MASK (DANETLS_PKIX_TA_MASK | DANETLS_DANE_TA_MASK)
#define DANETLS_EE_MASK (DANETLS_PKIX_EE_MASK | DANETLS_DANE_EE_MASK)
#define DANETLS_HAS_PKIX(dane) ((dane) && ((dane)->umask & DANETLS_PKIX_MASK))
#define DANETLS_HAS_DANE(dane) ((dane) && ((dane)->umask & DANETLS_DANE_MASK))
#define DANETLS_HAS_TA(dane) ((dane) && ((dane)->umask & DANETLS_TA_MASK))
#define DANETLS_HAS_EE(dane) ((dane) && ((dane)->umask & DANETLS_EE_MASK))
#define DANETLS_HAS_PKIX_TA(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_TA_MASK))
#define DANETLS_HAS_PKIX_EE(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_EE_MASK))
#define DANETLS_HAS_DANE_TA(dane) ((dane)&&((dane)->umask & DANETLS_DANE_TA_MASK))
#define DANETLS_HAS_DANE_EE(dane) ((dane)&&((dane)->umask & DANETLS_DANE_EE_MASK))
#endif /* HEADER_INTERNAL_DANE_H */
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