Refactor how parsing of ASN.1 data and certificate extensions work

1 files changed, 56 insertions, 0 deletions

diff --git a/common/x509.h b/common/x509.h
new file mode 100644
index 0000000..b7c9a5e
--- /dev/null
+++ b/common/x509.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2012 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions of source code must retain the above
+ *       copyright notice, this list of conditions and the
+ *       following disclaimer.
+ *     * Redistributions in binary form must reproduce the
+ *       above copyright notice, this list of conditions and
+ *       the following disclaimer in the documentation and/or
+ *       other materials provided with the distribution.
+ *     * The names of contributors to this software may not be
+ *       used to endorse or promote products derived from this
+ *       software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * Author: Stef Walter <stefw@redhat.com>
+ */
+
+#include <libtasn1.h>
+
+#include "dict.h"
+
+#ifndef P11_X509_H_
+#define P11_X509_H_
+
+bool             p11_x509_parse_basic_constraints   (p11_dict *asn1_defs,
+                                                     const unsigned char *ext_der,
+                                                     size_t ext_len,
+                                                     bool *is_ca);
+
+bool             p11_x509_parse_key_usage           (p11_dict *asn1_defs,
+                                                     const unsigned char *data,
+                                                     size_t length,
+                                                     unsigned int *ku);
+
+p11_dict *       p11_x509_parse_extended_key_usage  (p11_dict *asn1_defs,
+                                                     const unsigned char *ext_der,
+                                                     size_t ext_len);
+
+#endif /* P11_X509_H_ */