1*4724848cSchristos /* 2*4724848cSchristos * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. 3*4724848cSchristos * 4*4724848cSchristos * Licensed under the OpenSSL license (the "License"). You may not use 5*4724848cSchristos * this file except in compliance with the License. You can obtain a copy 6*4724848cSchristos * in the file LICENSE in the source distribution or at 7*4724848cSchristos * https://www.openssl.org/source/license.html 8*4724848cSchristos */ 9*4724848cSchristos 10*4724848cSchristos #ifndef OSSL_INTERNAL_DANE_H 11*4724848cSchristos #define OSSL_INTERNAL_DANE_H 12*4724848cSchristos 13*4724848cSchristos #include <openssl/safestack.h> 14*4724848cSchristos 15*4724848cSchristos /*- 16*4724848cSchristos * Certificate usages: 17*4724848cSchristos * https://tools.ietf.org/html/rfc6698#section-2.1.1 18*4724848cSchristos */ 19*4724848cSchristos #define DANETLS_USAGE_PKIX_TA 0 20*4724848cSchristos #define DANETLS_USAGE_PKIX_EE 1 21*4724848cSchristos #define DANETLS_USAGE_DANE_TA 2 22*4724848cSchristos #define DANETLS_USAGE_DANE_EE 3 23*4724848cSchristos #define DANETLS_USAGE_LAST DANETLS_USAGE_DANE_EE 24*4724848cSchristos 25*4724848cSchristos /*- 26*4724848cSchristos * Selectors: 27*4724848cSchristos * https://tools.ietf.org/html/rfc6698#section-2.1.2 28*4724848cSchristos */ 29*4724848cSchristos #define DANETLS_SELECTOR_CERT 0 30*4724848cSchristos #define DANETLS_SELECTOR_SPKI 1 31*4724848cSchristos #define DANETLS_SELECTOR_LAST DANETLS_SELECTOR_SPKI 32*4724848cSchristos 33*4724848cSchristos /*- 34*4724848cSchristos * Matching types: 35*4724848cSchristos * https://tools.ietf.org/html/rfc6698#section-2.1.3 36*4724848cSchristos */ 37*4724848cSchristos #define DANETLS_MATCHING_FULL 0 38*4724848cSchristos #define DANETLS_MATCHING_2256 1 39*4724848cSchristos #define DANETLS_MATCHING_2512 2 40*4724848cSchristos #define DANETLS_MATCHING_LAST DANETLS_MATCHING_2512 41*4724848cSchristos 42*4724848cSchristos typedef struct danetls_record_st { 43*4724848cSchristos uint8_t usage; 44*4724848cSchristos uint8_t selector; 45*4724848cSchristos uint8_t mtype; 46*4724848cSchristos unsigned char *data; 47*4724848cSchristos size_t dlen; 48*4724848cSchristos EVP_PKEY *spki; 49*4724848cSchristos } danetls_record; 50*4724848cSchristos 51*4724848cSchristos DEFINE_STACK_OF(danetls_record) 52*4724848cSchristos 53*4724848cSchristos /* 54*4724848cSchristos * Shared DANE context 55*4724848cSchristos */ 56*4724848cSchristos struct dane_ctx_st { 57*4724848cSchristos const EVP_MD **mdevp; /* mtype -> digest */ 58*4724848cSchristos uint8_t *mdord; /* mtype -> preference */ 59*4724848cSchristos uint8_t mdmax; /* highest supported mtype */ 60*4724848cSchristos unsigned long flags; /* feature bitmask */ 61*4724848cSchristos }; 62*4724848cSchristos 63*4724848cSchristos /* 64*4724848cSchristos * Per connection DANE state 65*4724848cSchristos */ 66*4724848cSchristos struct ssl_dane_st { 67*4724848cSchristos struct dane_ctx_st *dctx; 68*4724848cSchristos STACK_OF(danetls_record) *trecs; 69*4724848cSchristos STACK_OF(X509) *certs; /* DANE-TA(2) Cert(0) Full(0) certs */ 70*4724848cSchristos danetls_record *mtlsa; /* Matching TLSA record */ 71*4724848cSchristos X509 *mcert; /* DANE matched cert */ 72*4724848cSchristos uint32_t umask; /* Usages present */ 73*4724848cSchristos int mdpth; /* Depth of matched cert */ 74*4724848cSchristos int pdpth; /* Depth of PKIX trust */ 75*4724848cSchristos unsigned long flags; /* feature bitmask */ 76*4724848cSchristos }; 77*4724848cSchristos 78*4724848cSchristos #define DANETLS_ENABLED(dane) \ 79*4724848cSchristos ((dane) != NULL && sk_danetls_record_num((dane)->trecs) > 0) 80*4724848cSchristos 81*4724848cSchristos #define DANETLS_USAGE_BIT(u) (((uint32_t)1) << u) 82*4724848cSchristos 83*4724848cSchristos #define DANETLS_PKIX_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_TA)) 84*4724848cSchristos #define DANETLS_PKIX_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_EE)) 85*4724848cSchristos #define DANETLS_DANE_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_TA)) 86*4724848cSchristos #define DANETLS_DANE_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_EE)) 87*4724848cSchristos 88*4724848cSchristos #define DANETLS_PKIX_MASK (DANETLS_PKIX_TA_MASK | DANETLS_PKIX_EE_MASK) 89*4724848cSchristos #define DANETLS_DANE_MASK (DANETLS_DANE_TA_MASK | DANETLS_DANE_EE_MASK) 90*4724848cSchristos #define DANETLS_TA_MASK (DANETLS_PKIX_TA_MASK | DANETLS_DANE_TA_MASK) 91*4724848cSchristos #define DANETLS_EE_MASK (DANETLS_PKIX_EE_MASK | DANETLS_DANE_EE_MASK) 92*4724848cSchristos 93*4724848cSchristos #define DANETLS_HAS_PKIX(dane) ((dane) && ((dane)->umask & DANETLS_PKIX_MASK)) 94*4724848cSchristos #define DANETLS_HAS_DANE(dane) ((dane) && ((dane)->umask & DANETLS_DANE_MASK)) 95*4724848cSchristos #define DANETLS_HAS_TA(dane) ((dane) && ((dane)->umask & DANETLS_TA_MASK)) 96*4724848cSchristos #define DANETLS_HAS_EE(dane) ((dane) && ((dane)->umask & DANETLS_EE_MASK)) 97*4724848cSchristos 98*4724848cSchristos #define DANETLS_HAS_PKIX_TA(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_TA_MASK)) 99*4724848cSchristos #define DANETLS_HAS_PKIX_EE(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_EE_MASK)) 100*4724848cSchristos #define DANETLS_HAS_DANE_TA(dane) ((dane)&&((dane)->umask & DANETLS_DANE_TA_MASK)) 101*4724848cSchristos #define DANETLS_HAS_DANE_EE(dane) ((dane)&&((dane)->umask & DANETLS_DANE_EE_MASK)) 102*4724848cSchristos 103*4724848cSchristos #endif /* OSSL_INTERNAL_DANE_H */ 104