104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
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/*
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* Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_INTERNAL_DANE_H
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#define OSSL_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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unsigned long flags; /* feature bitmask */
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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 ssl_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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unsigned long flags; /* feature bitmask */
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};
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#define DANETLS_ENABLED(dane) \
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((dane) != NULL && sk_danetls_record_num((dane)->trecs) > 0)
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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 /* OSSL_INTERNAL_DANE_H */
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