wpa_supplicant: Initial Revision 0.8.X

Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date:   Thu Apr 21 20:41:01 2011 +0300

    Enable CONFIG_DRIVER_NL80211=y in the default configuration

    nl80211 should be preferred over WEXT with any recent Linux
    kernel version.

Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/tls/x509v3.h b/src/tls/x509v3.h
new file mode 100644
index 0000000..37292d7
--- /dev/null
+++ b/src/tls/x509v3.h
@@ -0,0 +1,129 @@
+/*
+ * X.509v3 certificate parsing and processing
+ * 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 X509V3_H
+#define X509V3_H
+
+#include "asn1.h"
+
+struct x509_algorithm_identifier {
+	struct asn1_oid oid;
+};
+
+struct x509_name_attr {
+	enum x509_name_attr_type {
+		X509_NAME_ATTR_NOT_USED,
+		X509_NAME_ATTR_DC,
+		X509_NAME_ATTR_CN,
+		X509_NAME_ATTR_C,
+		X509_NAME_ATTR_L,
+		X509_NAME_ATTR_ST,
+		X509_NAME_ATTR_O,
+		X509_NAME_ATTR_OU
+	} type;
+	char *value;
+};
+
+#define X509_MAX_NAME_ATTRIBUTES 20
+
+struct x509_name {
+	struct x509_name_attr attr[X509_MAX_NAME_ATTRIBUTES];
+	size_t num_attr;
+	char *email; /* emailAddress */
+
+	/* from alternative name extension */
+	char *alt_email; /* rfc822Name */
+	char *dns; /* dNSName */
+	char *uri; /* uniformResourceIdentifier */
+	u8 *ip; /* iPAddress */
+	size_t ip_len; /* IPv4: 4, IPv6: 16 */
+	struct asn1_oid rid; /* registeredID */
+};
+
+struct x509_certificate {
+	struct x509_certificate *next;
+	enum { X509_CERT_V1 = 0, X509_CERT_V2 = 1, X509_CERT_V3 = 2 } version;
+	unsigned long serial_number;
+	struct x509_algorithm_identifier signature;
+	struct x509_name issuer;
+	struct x509_name subject;
+	os_time_t not_before;
+	os_time_t not_after;
+	struct x509_algorithm_identifier public_key_alg;
+	u8 *public_key;
+	size_t public_key_len;
+	struct x509_algorithm_identifier signature_alg;
+	u8 *sign_value;
+	size_t sign_value_len;
+
+	/* Extensions */
+	unsigned int extensions_present;
+#define X509_EXT_BASIC_CONSTRAINTS		(1 << 0)
+#define X509_EXT_PATH_LEN_CONSTRAINT		(1 << 1)
+#define X509_EXT_KEY_USAGE			(1 << 2)
+#define X509_EXT_SUBJECT_ALT_NAME		(1 << 3)
+#define X509_EXT_ISSUER_ALT_NAME		(1 << 4)
+
+	/* BasicConstraints */
+	int ca; /* cA */
+	unsigned long path_len_constraint; /* pathLenConstraint */
+
+	/* KeyUsage */
+	unsigned long key_usage;
+#define X509_KEY_USAGE_DIGITAL_SIGNATURE	(1 << 0)
+#define X509_KEY_USAGE_NON_REPUDIATION		(1 << 1)
+#define X509_KEY_USAGE_KEY_ENCIPHERMENT		(1 << 2)
+#define X509_KEY_USAGE_DATA_ENCIPHERMENT	(1 << 3)
+#define X509_KEY_USAGE_KEY_AGREEMENT		(1 << 4)
+#define X509_KEY_USAGE_KEY_CERT_SIGN		(1 << 5)
+#define X509_KEY_USAGE_CRL_SIGN			(1 << 6)
+#define X509_KEY_USAGE_ENCIPHER_ONLY		(1 << 7)
+#define X509_KEY_USAGE_DECIPHER_ONLY		(1 << 8)
+
+	/*
+	 * The DER format certificate follows struct x509_certificate. These
+	 * pointers point to that buffer.
+	 */
+	const u8 *cert_start;
+	size_t cert_len;
+	const u8 *tbs_cert_start;
+	size_t tbs_cert_len;
+};
+
+enum {
+	X509_VALIDATE_OK,
+	X509_VALIDATE_BAD_CERTIFICATE,
+	X509_VALIDATE_UNSUPPORTED_CERTIFICATE,
+	X509_VALIDATE_CERTIFICATE_REVOKED,
+	X509_VALIDATE_CERTIFICATE_EXPIRED,
+	X509_VALIDATE_CERTIFICATE_UNKNOWN,
+	X509_VALIDATE_UNKNOWN_CA
+};
+
+void x509_certificate_free(struct x509_certificate *cert);
+struct x509_certificate * x509_certificate_parse(const u8 *buf, size_t len);
+void x509_name_string(struct x509_name *name, char *buf, size_t len);
+int x509_name_compare(struct x509_name *a, struct x509_name *b);
+void x509_certificate_chain_free(struct x509_certificate *cert);
+int x509_certificate_check_signature(struct x509_certificate *issuer,
+				     struct x509_certificate *cert);
+int x509_certificate_chain_validate(struct x509_certificate *trusted,
+				    struct x509_certificate *chain,
+				    int *reason);
+struct x509_certificate *
+x509_certificate_get_subject(struct x509_certificate *chain,
+			     struct x509_name *name);
+int x509_certificate_self_signed(struct x509_certificate *cert);
+
+#endif /* X509V3_H */