1 files changed, 91 insertions, 0 deletions
diff --git a/crypto/x509/v3_pcons.c b/crypto/x509/v3_pcons.c
new file mode 100644
index 0000000000..e6d50a6fe7
--- /dev/null
+++ b/crypto/x509/v3_pcons.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2003-2016 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
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/conf.h>
+#include <openssl/x509v3.h>
+#include "ext_dat.h"
+
+static STACK_OF(CONF_VALUE) *i2v_POLICY_CONSTRAINTS(const X509V3_EXT_METHOD
+                                                    *method, void *bcons, STACK_OF(CONF_VALUE)
+                                                    *extlist);
+static void *v2i_POLICY_CONSTRAINTS(const X509V3_EXT_METHOD *method,
+                                    X509V3_CTX *ctx,
+                                    STACK_OF(CONF_VALUE) *values);
+
+const X509V3_EXT_METHOD v3_policy_constraints = {
+    NID_policy_constraints, 0,
+    ASN1_ITEM_ref(POLICY_CONSTRAINTS),
+    0, 0, 0, 0,
+    0, 0,
+    i2v_POLICY_CONSTRAINTS,
+    v2i_POLICY_CONSTRAINTS,
+    NULL, NULL,
+    NULL
+};
+
+ASN1_SEQUENCE(POLICY_CONSTRAINTS) = {
+        ASN1_IMP_OPT(POLICY_CONSTRAINTS, requireExplicitPolicy, ASN1_INTEGER,0),
+        ASN1_IMP_OPT(POLICY_CONSTRAINTS, inhibitPolicyMapping, ASN1_INTEGER,1)
+} ASN1_SEQUENCE_END(POLICY_CONSTRAINTS)
+
+IMPLEMENT_ASN1_ALLOC_FUNCTIONS(POLICY_CONSTRAINTS)
+
+static STACK_OF(CONF_VALUE) *i2v_POLICY_CONSTRAINTS(const X509V3_EXT_METHOD
+                                                    *method, void *a, STACK_OF(CONF_VALUE)
+                                                    *extlist)
+{
+    POLICY_CONSTRAINTS *pcons = a;
+    X509V3_add_value_int("Require Explicit Policy",
+                         pcons->requireExplicitPolicy, &extlist);
+    X509V3_add_value_int("Inhibit Policy Mapping",
+                         pcons->inhibitPolicyMapping, &extlist);
+    return extlist;
+}
+
+static void *v2i_POLICY_CONSTRAINTS(const X509V3_EXT_METHOD *method,
+                                    X509V3_CTX *ctx,
+                                    STACK_OF(CONF_VALUE) *values)
+{
+    POLICY_CONSTRAINTS *pcons = NULL;
+    CONF_VALUE *val;
+    int i;
+
+    if ((pcons = POLICY_CONSTRAINTS_new()) == NULL) {
+        X509V3err(X509V3_F_V2I_POLICY_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
+        val = sk_CONF_VALUE_value(values, i);
+        if (strcmp(val->name, "requireExplicitPolicy") == 0) {
+            if (!X509V3_get_value_int(val, &pcons->requireExplicitPolicy))
+                goto err;
+        } else if (strcmp(val->name, "inhibitPolicyMapping") == 0) {
+            if (!X509V3_get_value_int(val, &pcons->inhibitPolicyMapping))
+                goto err;
+        } else {
+            X509V3err(X509V3_F_V2I_POLICY_CONSTRAINTS, X509V3_R_INVALID_NAME);
+            X509V3_conf_err(val);
+            goto err;
+        }
+    }
+    if (!pcons->inhibitPolicyMapping && !pcons->requireExplicitPolicy) {
+        X509V3err(X509V3_F_V2I_POLICY_CONSTRAINTS,
+                  X509V3_R_ILLEGAL_EMPTY_EXTENSION);
+        goto err;
+    }
+
+    return pcons;
+ err:
+    POLICY_CONSTRAINTS_free(pcons);
+    return NULL;
+}