From 919ba009429b3617e975933f37a23be996a33b8d Mon Sep 17 00:00:00 2001 From: Viktor Dukhovni Date: Tue, 29 Dec 2015 13:28:28 -0500 Subject: DANE support structures, constructructors and accessors Also tweak some of the code in demos/bio, to enable interactive testing of BIO_s_accept's use of SSL_dup. Changed the sconnect client to authenticate the server, which now exercises the new SSL_set1_host() function. Reviewed-by: Richard Levitte --- include/internal/dane.h | 147 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 147 insertions(+) create mode 100644 include/internal/dane.h (limited to 'include/internal') diff --git a/include/internal/dane.h b/include/internal/dane.h new file mode 100644 index 0000000000..cbe33f3e48 --- /dev/null +++ b/include/internal/dane.h @@ -0,0 +1,147 @@ +/* dane.h */ +/* + * 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 + +/*- + * 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; + +/* + * 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 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) && ((dane)->trecs != NULL)) + +#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 */ -- cgit v1.2.3