1 files changed, 300 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/x509/x509_trs.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/x509/x509_trs.c
new file mode 100644
index 000000000..a10d43773
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/x509/x509_trs.c
@@ -0,0 +1,300 @@
+/*
+ * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/x509v3.h>
+#include "crypto/x509.h"
+
+static int tr_cmp(const X509_TRUST *const *a, const X509_TRUST *const *b);
+static void trtable_free(X509_TRUST *p);
+
+static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags);
+static int trust_1oid(X509_TRUST *trust, X509 *x, int flags);
+static int trust_compat(X509_TRUST *trust, X509 *x, int flags);
+
+static int obj_trust(int id, X509 *x, int flags);
+static int (*default_trust) (int id, X509 *x, int flags) = obj_trust;
+
+/*
+ * WARNING: the following table should be kept in order of trust and without
+ * any gaps so we can just subtract the minimum trust value to get an index
+ * into the table
+ */
+
+static X509_TRUST trstandard[] = {
+    {X509_TRUST_COMPAT, 0, trust_compat, "compatible", 0, NULL},
+    {X509_TRUST_SSL_CLIENT, 0, trust_1oidany, "SSL Client", NID_client_auth,
+     NULL},
+    {X509_TRUST_SSL_SERVER, 0, trust_1oidany, "SSL Server", NID_server_auth,
+     NULL},
+    {X509_TRUST_EMAIL, 0, trust_1oidany, "S/MIME email", NID_email_protect,
+     NULL},
+    {X509_TRUST_OBJECT_SIGN, 0, trust_1oidany, "Object Signer", NID_code_sign,
+     NULL},
+    {X509_TRUST_OCSP_SIGN, 0, trust_1oid, "OCSP responder", NID_OCSP_sign,
+     NULL},
+    {X509_TRUST_OCSP_REQUEST, 0, trust_1oid, "OCSP request", NID_ad_OCSP,
+     NULL},
+    {X509_TRUST_TSA, 0, trust_1oidany, "TSA server", NID_time_stamp, NULL}
+};
+
+#define X509_TRUST_COUNT        OSSL_NELEM(trstandard)
+
+static STACK_OF(X509_TRUST) *trtable = NULL;
+
+static int tr_cmp(const X509_TRUST *const *a, const X509_TRUST *const *b)
+{
+    return (*a)->trust - (*b)->trust;
+}
+
+int (*X509_TRUST_set_default(int (*trust) (int, X509 *, int))) (int, X509 *,
+                                                                int) {
+    int (*oldtrust) (int, X509 *, int);
+    oldtrust = default_trust;
+    default_trust = trust;
+    return oldtrust;
+}
+
+int X509_check_trust(X509 *x, int id, int flags)
+{
+    X509_TRUST *pt;
+    int idx;
+
+    /* We get this as a default value */
+    if (id == X509_TRUST_DEFAULT)
+        return obj_trust(NID_anyExtendedKeyUsage, x,
+                         flags | X509_TRUST_DO_SS_COMPAT);
+    idx = X509_TRUST_get_by_id(id);
+    if (idx == -1)
+        return default_trust(id, x, flags);
+    pt = X509_TRUST_get0(idx);
+    return pt->check_trust(pt, x, flags);
+}
+
+int X509_TRUST_get_count(void)
+{
+    if (!trtable)
+        return X509_TRUST_COUNT;
+    return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT;
+}
+
+X509_TRUST *X509_TRUST_get0(int idx)
+{
+    if (idx < 0)
+        return NULL;
+    if (idx < (int)X509_TRUST_COUNT)
+        return trstandard + idx;
+    return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);
+}
+
+int X509_TRUST_get_by_id(int id)
+{
+    X509_TRUST tmp;
+    int idx;
+
+    if ((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX))
+        return id - X509_TRUST_MIN;
+    if (trtable == NULL)
+        return -1;
+    tmp.trust = id;
+    idx = sk_X509_TRUST_find(trtable, &tmp);
+    if (idx < 0)
+        return -1;
+    return idx + X509_TRUST_COUNT;
+}
+
+int X509_TRUST_set(int *t, int trust)
+{
+    if (X509_TRUST_get_by_id(trust) == -1) {
+        X509err(X509_F_X509_TRUST_SET, X509_R_INVALID_TRUST);
+        return 0;
+    }
+    *t = trust;
+    return 1;
+}
+
+int X509_TRUST_add(int id, int flags, int (*ck) (X509_TRUST *, X509 *, int),
+                   const char *name, int arg1, void *arg2)
+{
+    int idx;
+    X509_TRUST *trtmp;
+    /*
+     * This is set according to what we change: application can't set it
+     */
+    flags &= ~X509_TRUST_DYNAMIC;
+    /* This will always be set for application modified trust entries */
+    flags |= X509_TRUST_DYNAMIC_NAME;
+    /* Get existing entry if any */
+    idx = X509_TRUST_get_by_id(id);
+    /* Need a new entry */
+    if (idx == -1) {
+        if ((trtmp = OPENSSL_malloc(sizeof(*trtmp))) == NULL) {
+            X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+        trtmp->flags = X509_TRUST_DYNAMIC;
+    } else
+        trtmp = X509_TRUST_get0(idx);
+
+    /* OPENSSL_free existing name if dynamic */
+    if (trtmp->flags & X509_TRUST_DYNAMIC_NAME)
+        OPENSSL_free(trtmp->name);
+    /* dup supplied name */
+    if ((trtmp->name = OPENSSL_strdup(name)) == NULL) {
+        X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    /* Keep the dynamic flag of existing entry */
+    trtmp->flags &= X509_TRUST_DYNAMIC;
+    /* Set all other flags */
+    trtmp->flags |= flags;
+
+    trtmp->trust = id;
+    trtmp->check_trust = ck;
+    trtmp->arg1 = arg1;
+    trtmp->arg2 = arg2;
+
+    /* If its a new entry manage the dynamic table */
+    if (idx == -1) {
+        if (trtable == NULL
+            && (trtable = sk_X509_TRUST_new(tr_cmp)) == NULL) {
+            X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
+            goto err;;
+        }
+        if (!sk_X509_TRUST_push(trtable, trtmp)) {
+            X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+    }
+    return 1;
+ err:
+    if (idx == -1) {
+        OPENSSL_free(trtmp->name);
+        OPENSSL_free(trtmp);
+    }
+    return 0;
+}
+
+static void trtable_free(X509_TRUST *p)
+{
+    if (!p)
+        return;
+    if (p->flags & X509_TRUST_DYNAMIC) {
+        if (p->flags & X509_TRUST_DYNAMIC_NAME)
+            OPENSSL_free(p->name);
+        OPENSSL_free(p);
+    }
+}
+
+void X509_TRUST_cleanup(void)
+{
+    sk_X509_TRUST_pop_free(trtable, trtable_free);
+    trtable = NULL;
+}
+
+int X509_TRUST_get_flags(const X509_TRUST *xp)
+{
+    return xp->flags;
+}
+
+char *X509_TRUST_get0_name(const X509_TRUST *xp)
+{
+    return xp->name;
+}
+
+int X509_TRUST_get_trust(const X509_TRUST *xp)
+{
+    return xp->trust;
+}
+
+static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags)
+{
+    /*
+     * Declare the chain verified if the desired trust OID is not rejected in
+     * any auxiliary trust info for this certificate, and the OID is either
+     * expressly trusted, or else either "anyEKU" is trusted, or the
+     * certificate is self-signed.
+     */
+    flags |= X509_TRUST_DO_SS_COMPAT | X509_TRUST_OK_ANY_EKU;
+    return obj_trust(trust->arg1, x, flags);
+}
+
+static int trust_1oid(X509_TRUST *trust, X509 *x, int flags)
+{
+    /*
+     * Declare the chain verified only if the desired trust OID is not
+     * rejected and is expressly trusted.  Neither "anyEKU" nor "compat"
+     * trust in self-signed certificates apply.
+     */
+    flags &= ~(X509_TRUST_DO_SS_COMPAT | X509_TRUST_OK_ANY_EKU);
+    return obj_trust(trust->arg1, x, flags);
+}
+
+static int trust_compat(X509_TRUST *trust, X509 *x, int flags)
+{
+    /* Call for side-effect of computing hash and caching extensions */
+    if (X509_check_purpose(x, -1, 0) != 1)
+        return X509_TRUST_UNTRUSTED;
+    if ((flags & X509_TRUST_NO_SS_COMPAT) == 0 && (x->ex_flags & EXFLAG_SS))
+        return X509_TRUST_TRUSTED;
+    else
+        return X509_TRUST_UNTRUSTED;
+}
+
+static int obj_trust(int id, X509 *x, int flags)
+{
+    X509_CERT_AUX *ax = x->aux;
+    int i;
+
+    if (ax && ax->reject) {
+        for (i = 0; i < sk_ASN1_OBJECT_num(ax->reject); i++) {
+            ASN1_OBJECT *obj = sk_ASN1_OBJECT_value(ax->reject, i);
+            int nid = OBJ_obj2nid(obj);
+
+            if (nid == id || (nid == NID_anyExtendedKeyUsage &&
+                (flags & X509_TRUST_OK_ANY_EKU)))
+                return X509_TRUST_REJECTED;
+        }
+    }
+
+    if (ax && ax->trust) {
+        for (i = 0; i < sk_ASN1_OBJECT_num(ax->trust); i++) {
+            ASN1_OBJECT *obj = sk_ASN1_OBJECT_value(ax->trust, i);
+            int nid = OBJ_obj2nid(obj);
+
+            if (nid == id || (nid == NID_anyExtendedKeyUsage &&
+                (flags & X509_TRUST_OK_ANY_EKU)))
+                return X509_TRUST_TRUSTED;
+        }
+        /*
+         * Reject when explicit trust EKU are set and none match.
+         *
+         * Returning untrusted is enough for for full chains that end in
+         * self-signed roots, because when explicit trust is specified it
+         * suppresses the default blanket trust of self-signed objects.
+         *
+         * But for partial chains, this is not enough, because absent a similar
+         * trust-self-signed policy, non matching EKUs are indistinguishable
+         * from lack of EKU constraints.
+         *
+         * Therefore, failure to match any trusted purpose must trigger an
+         * explicit reject.
+         */
+        return X509_TRUST_REJECTED;
+    }
+
+    if ((flags & X509_TRUST_DO_SS_COMPAT) == 0)
+        return X509_TRUST_UNTRUSTED;
+
+    /*
+     * Not rejected, and there is no list of accepted uses, try compat.
+     */
+    return trust_compat(NULL, x, flags);
+}