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-rw-r--r--NorthstarDLL/include/internal/dane.h104
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diff --git a/NorthstarDLL/include/internal/dane.h b/NorthstarDLL/include/internal/dane.h
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+/*
+ * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef OSSL_INTERNAL_DANE_H
+#define OSSL_INTERNAL_DANE_H
+# pragma once
+
+# include <openssl/safestack.h>
+
+/*-
+ * 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;
+
+DEFINE_STACK_OF(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 */
+ unsigned long flags; /* feature bitmask */
+};
+
+/*
+ * Per connection DANE state
+ */
+struct ssl_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 */
+ unsigned long flags; /* feature bitmask */
+};
+
+#define DANETLS_ENABLED(dane) \
+ ((dane) != NULL && sk_danetls_record_num((dane)->trecs) > 0)
+
+#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 /* OSSL_INTERNAL_DANE_H */