auto import from //depot/cupcake/@135843

1 files changed, 71 insertions, 0 deletions

diff --git a/asn1.h b/asn1.h
new file mode 100644
index 0000000..c02ada8
--- /dev/null
+++ b/asn1.h
@@ -0,0 +1,71 @@
+/*
+ * ASN.1 DER parsing
+ * Copyright (c) 2006, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef ASN1_H
+#define ASN1_H
+
+#define ASN1_TAG_EOC		0x00 /* not used with DER */
+#define ASN1_TAG_BOOLEAN	0x01
+#define ASN1_TAG_INTEGER	0x02
+#define ASN1_TAG_BITSTRING	0x03
+#define ASN1_TAG_OCTETSTRING	0x04
+#define ASN1_TAG_NULL		0x05
+#define ASN1_TAG_OID		0x06
+#define ASN1_TAG_OBJECT_DESCRIPTOR	0x07 /* not yet parsed */
+#define ASN1_TAG_EXTERNAL	0x08 /* not yet parsed */
+#define ASN1_TAG_REAL		0x09 /* not yet parsed */
+#define ASN1_TAG_ENUMERATED	0x0A /* not yet parsed */
+#define ASN1_TAG_UTF8STRING	0x0C /* not yet parsed */
+#define ANS1_TAG_RELATIVE_OID	0x0D
+#define ASN1_TAG_SEQUENCE	0x10 /* shall be constructed */
+#define ASN1_TAG_SET		0x11
+#define ASN1_TAG_NUMERICSTRING	0x12 /* not yet parsed */
+#define ASN1_TAG_PRINTABLESTRING	0x13
+#define ASN1_TAG_TG1STRING	0x14 /* not yet parsed */
+#define ASN1_TAG_VIDEOTEXSTRING	0x15 /* not yet parsed */
+#define ASN1_TAG_IA5STRING	0x16
+#define ASN1_TAG_UTCTIME	0x17
+#define ASN1_TAG_GENERALIZEDTIME	0x18 /* not yet parsed */
+#define ASN1_TAG_GRAPHICSTRING	0x19 /* not yet parsed */
+#define ASN1_TAG_VISIBLESTRING	0x1A
+#define ASN1_TAG_GENERALSTRING	0x1B /* not yet parsed */
+#define ASN1_TAG_UNIVERSALSTRING	0x1C /* not yet parsed */
+#define ASN1_TAG_BMPSTRING	0x1D /* not yet parsed */
+
+#define ASN1_CLASS_UNIVERSAL		0
+#define ASN1_CLASS_APPLICATION		1
+#define ASN1_CLASS_CONTEXT_SPECIFIC	2
+#define ASN1_CLASS_PRIVATE		3
+
+
+struct asn1_hdr {
+	const u8 *payload;
+	u8 identifier, class, constructed;
+	unsigned int tag, length;
+};
+
+#define ASN1_MAX_OID_LEN 20
+struct asn1_oid {
+	unsigned long oid[ASN1_MAX_OID_LEN];
+	size_t len;
+};
+
+
+int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr);
+int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
+		 const u8 **next);
+void asn1_oid_to_str(struct asn1_oid *oid, char *buf, size_t len);
+unsigned long asn1_bit_string_to_long(const u8 *buf, size_t len);
+
+#endif /* ASN1_H */