148 lines
5.7 KiB
C
148 lines
5.7 KiB
C
/*
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* Written by Viktor Dukhovni (viktor@openssl.org) for the OpenSSL project
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* 2015.
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*/
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/* ====================================================================
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* Copyright (c) 2015 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#ifndef HEADER_INTERNAL_DANE_H
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#define HEADER_INTERNAL_DANE_H
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#include <openssl/safestack.h>
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/*-
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* Certificate usages:
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* https://tools.ietf.org/html/rfc6698#section-2.1.1
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*/
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#define DANETLS_USAGE_PKIX_TA 0
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#define DANETLS_USAGE_PKIX_EE 1
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#define DANETLS_USAGE_DANE_TA 2
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#define DANETLS_USAGE_DANE_EE 3
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#define DANETLS_USAGE_LAST DANETLS_USAGE_DANE_EE
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/*-
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* Selectors:
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* https://tools.ietf.org/html/rfc6698#section-2.1.2
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*/
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#define DANETLS_SELECTOR_CERT 0
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#define DANETLS_SELECTOR_SPKI 1
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#define DANETLS_SELECTOR_LAST DANETLS_SELECTOR_SPKI
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/*-
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* Matching types:
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* https://tools.ietf.org/html/rfc6698#section-2.1.3
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*/
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#define DANETLS_MATCHING_FULL 0
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#define DANETLS_MATCHING_2256 1
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#define DANETLS_MATCHING_2512 2
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#define DANETLS_MATCHING_LAST DANETLS_MATCHING_2512
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typedef struct danetls_record_st {
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uint8_t usage;
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uint8_t selector;
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uint8_t mtype;
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unsigned char *data;
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size_t dlen;
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EVP_PKEY *spki;
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} danetls_record;
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DEFINE_STACK_OF(danetls_record)
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/*
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* Shared DANE context
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*/
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struct dane_ctx_st {
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const EVP_MD **mdevp; /* mtype -> digest */
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uint8_t *mdord; /* mtype -> preference */
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uint8_t mdmax; /* highest supported mtype */
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};
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/*
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* Per connection DANE state
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*/
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struct dane_st {
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struct dane_ctx_st *dctx;
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STACK_OF(danetls_record) *trecs;
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STACK_OF(X509) *certs; /* DANE-TA(2) Cert(0) Full(0) certs */
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danetls_record *mtlsa; /* Matching TLSA record */
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X509 *mcert; /* DANE matched cert */
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uint32_t umask; /* Usages present */
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int mdpth; /* Depth of matched cert */
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int pdpth; /* Depth of PKIX trust */
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};
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#define DANETLS_ENABLED(dane) ((dane) != NULL && ((dane)->trecs != NULL))
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#define DANETLS_USAGE_BIT(u) (((uint32_t)1) << u)
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#define DANETLS_PKIX_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_TA))
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#define DANETLS_PKIX_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_EE))
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#define DANETLS_DANE_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_TA))
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#define DANETLS_DANE_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_EE))
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#define DANETLS_PKIX_MASK (DANETLS_PKIX_TA_MASK | DANETLS_PKIX_EE_MASK)
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#define DANETLS_DANE_MASK (DANETLS_DANE_TA_MASK | DANETLS_DANE_EE_MASK)
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#define DANETLS_TA_MASK (DANETLS_PKIX_TA_MASK | DANETLS_DANE_TA_MASK)
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#define DANETLS_EE_MASK (DANETLS_PKIX_EE_MASK | DANETLS_DANE_EE_MASK)
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#define DANETLS_HAS_PKIX(dane) ((dane) && ((dane)->umask & DANETLS_PKIX_MASK))
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#define DANETLS_HAS_DANE(dane) ((dane) && ((dane)->umask & DANETLS_DANE_MASK))
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#define DANETLS_HAS_TA(dane) ((dane) && ((dane)->umask & DANETLS_TA_MASK))
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#define DANETLS_HAS_EE(dane) ((dane) && ((dane)->umask & DANETLS_EE_MASK))
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#define DANETLS_HAS_PKIX_TA(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_TA_MASK))
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#define DANETLS_HAS_PKIX_EE(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_EE_MASK))
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#define DANETLS_HAS_DANE_TA(dane) ((dane)&&((dane)->umask & DANETLS_DANE_TA_MASK))
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#define DANETLS_HAS_DANE_EE(dane) ((dane)&&((dane)->umask & DANETLS_DANE_EE_MASK))
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#endif /* HEADER_INTERNAL_DANE_H */
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