1 /* 2 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #ifndef OSSL_INTERNAL_DANE_H 11 #define OSSL_INTERNAL_DANE_H 12 13 #include <openssl/safestack.h> 14 15 /*- 16 * Certificate usages: 17 * https://tools.ietf.org/html/rfc6698#section-2.1.1 18 */ 19 #define DANETLS_USAGE_PKIX_TA 0 20 #define DANETLS_USAGE_PKIX_EE 1 21 #define DANETLS_USAGE_DANE_TA 2 22 #define DANETLS_USAGE_DANE_EE 3 23 #define DANETLS_USAGE_LAST DANETLS_USAGE_DANE_EE 24 25 /*- 26 * Selectors: 27 * https://tools.ietf.org/html/rfc6698#section-2.1.2 28 */ 29 #define DANETLS_SELECTOR_CERT 0 30 #define DANETLS_SELECTOR_SPKI 1 31 #define DANETLS_SELECTOR_LAST DANETLS_SELECTOR_SPKI 32 33 /*- 34 * Matching types: 35 * https://tools.ietf.org/html/rfc6698#section-2.1.3 36 */ 37 #define DANETLS_MATCHING_FULL 0 38 #define DANETLS_MATCHING_2256 1 39 #define DANETLS_MATCHING_2512 2 40 #define DANETLS_MATCHING_LAST DANETLS_MATCHING_2512 41 42 typedef struct danetls_record_st { 43 uint8_t usage; 44 uint8_t selector; 45 uint8_t mtype; 46 unsigned char *data; 47 size_t dlen; 48 EVP_PKEY *spki; 49 } danetls_record; 50 51 DEFINE_STACK_OF(danetls_record) 52 53 /* 54 * Shared DANE context 55 */ 56 struct dane_ctx_st { 57 const EVP_MD **mdevp; /* mtype -> digest */ 58 uint8_t *mdord; /* mtype -> preference */ 59 uint8_t mdmax; /* highest supported mtype */ 60 unsigned long flags; /* feature bitmask */ 61 }; 62 63 /* 64 * Per connection DANE state 65 */ 66 struct ssl_dane_st { 67 struct dane_ctx_st *dctx; 68 STACK_OF(danetls_record) *trecs; 69 STACK_OF(X509) *certs; /* DANE-TA(2) Cert(0) Full(0) certs */ 70 danetls_record *mtlsa; /* Matching TLSA record */ 71 X509 *mcert; /* DANE matched cert */ 72 uint32_t umask; /* Usages present */ 73 int mdpth; /* Depth of matched cert */ 74 int pdpth; /* Depth of PKIX trust */ 75 unsigned long flags; /* feature bitmask */ 76 }; 77 78 #define DANETLS_ENABLED(dane) \ 79 ((dane) != NULL && sk_danetls_record_num((dane)->trecs) > 0) 80 81 #define DANETLS_USAGE_BIT(u) (((uint32_t)1) << u) 82 83 #define DANETLS_PKIX_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_TA)) 84 #define DANETLS_PKIX_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_EE)) 85 #define DANETLS_DANE_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_TA)) 86 #define DANETLS_DANE_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_EE)) 87 88 #define DANETLS_PKIX_MASK (DANETLS_PKIX_TA_MASK | DANETLS_PKIX_EE_MASK) 89 #define DANETLS_DANE_MASK (DANETLS_DANE_TA_MASK | DANETLS_DANE_EE_MASK) 90 #define DANETLS_TA_MASK (DANETLS_PKIX_TA_MASK | DANETLS_DANE_TA_MASK) 91 #define DANETLS_EE_MASK (DANETLS_PKIX_EE_MASK | DANETLS_DANE_EE_MASK) 92 93 #define DANETLS_HAS_PKIX(dane) ((dane) && ((dane)->umask & DANETLS_PKIX_MASK)) 94 #define DANETLS_HAS_DANE(dane) ((dane) && ((dane)->umask & DANETLS_DANE_MASK)) 95 #define DANETLS_HAS_TA(dane) ((dane) && ((dane)->umask & DANETLS_TA_MASK)) 96 #define DANETLS_HAS_EE(dane) ((dane) && ((dane)->umask & DANETLS_EE_MASK)) 97 98 #define DANETLS_HAS_PKIX_TA(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_TA_MASK)) 99 #define DANETLS_HAS_PKIX_EE(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_EE_MASK)) 100 #define DANETLS_HAS_DANE_TA(dane) ((dane)&&((dane)->umask & DANETLS_DANE_TA_MASK)) 101 #define DANETLS_HAS_DANE_EE(dane) ((dane)&&((dane)->umask & DANETLS_DANE_EE_MASK)) 102 103 #endif /* OSSL_INTERNAL_DANE_H */ 104