2 * Testing tool for ASN.1/X.509v3 routines
3 * Copyright (c) 2006, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
21 extern int wpa_debug_level;
24 static const char * asn1_class_str(int class)
27 case ASN1_CLASS_UNIVERSAL:
29 case ASN1_CLASS_APPLICATION:
31 case ASN1_CLASS_CONTEXT_SPECIFIC:
32 return "Context-specific";
33 case ASN1_CLASS_PRIVATE:
41 int asn1_parse(const u8 *buf, size_t len, int level)
43 const u8 *pos, *prev, *end;
44 char prefix[10], str[100];
51 if ((size_t) _level > sizeof(prefix) - 1)
52 _level = sizeof(prefix) - 1;
53 memset(prefix, ' ', _level);
54 prefix[_level] = '\0';
60 if (asn1_get_next(pos, end - pos, &hdr) < 0)
66 wpa_printf(MSG_MSGDUMP, "ASN.1:%s Class %d(%s) P/C %d(%s) "
68 prefix, hdr.class, asn1_class_str(hdr.class),
70 hdr.constructed ? "Constructed" : "Primitive",
73 if (hdr.class == ASN1_CLASS_CONTEXT_SPECIFIC &&
75 if (asn1_parse(pos, hdr.length, level + 1) < 0)
80 if (hdr.class != ASN1_CLASS_UNIVERSAL)
86 wpa_printf(MSG_DEBUG, "ASN.1: Non-zero "
87 "end-of-contents length (%u)",
91 wpa_printf(MSG_MSGDUMP, "ASN.1:%s EOC", prefix);
93 case ASN1_TAG_BOOLEAN:
94 if (hdr.length != 1) {
95 wpa_printf(MSG_DEBUG, "ASN.1: Unexpected "
96 "Boolean length (%u)", hdr.length);
100 wpa_printf(MSG_MSGDUMP, "ASN.1:%s Boolean %s",
101 prefix, tmp ? "TRUE" : "FALSE");
103 case ASN1_TAG_INTEGER:
104 wpa_hexdump(MSG_MSGDUMP, "ASN.1: INTEGER",
108 case ASN1_TAG_BITSTRING:
109 wpa_hexdump(MSG_MSGDUMP, "ASN.1: BitString",
113 case ASN1_TAG_OCTETSTRING:
114 wpa_hexdump(MSG_MSGDUMP, "ASN.1: OctetString",
120 wpa_printf(MSG_DEBUG, "ASN.1: Non-zero Null "
121 "length (%u)", hdr.length);
124 wpa_printf(MSG_MSGDUMP, "ASN.1:%s Null", prefix);
127 if (asn1_get_oid(prev, end - prev, &oid, &prev) < 0) {
128 wpa_printf(MSG_DEBUG, "ASN.1: Invalid OID");
131 asn1_oid_to_str(&oid, str, sizeof(str));
132 wpa_printf(MSG_DEBUG, "ASN.1:%s OID %s", prefix, str);
135 case ANS1_TAG_RELATIVE_OID:
136 wpa_hexdump(MSG_MSGDUMP, "ASN.1: Relative OID",
140 case ASN1_TAG_SEQUENCE:
141 wpa_printf(MSG_MSGDUMP, "ASN.1:%s SEQUENCE", prefix);
142 if (asn1_parse(pos, hdr.length, level + 1) < 0)
147 wpa_printf(MSG_MSGDUMP, "ASN.1:%s SET", prefix);
148 if (asn1_parse(pos, hdr.length, level + 1) < 0)
152 case ASN1_TAG_PRINTABLESTRING:
153 wpa_hexdump_ascii(MSG_MSGDUMP,
154 "ASN.1: PrintableString",
158 case ASN1_TAG_IA5STRING:
159 wpa_hexdump_ascii(MSG_MSGDUMP, "ASN.1: IA5String",
163 case ASN1_TAG_UTCTIME:
164 wpa_hexdump_ascii(MSG_MSGDUMP, "ASN.1: UTCTIME",
168 case ASN1_TAG_VISIBLESTRING:
169 wpa_hexdump_ascii(MSG_MSGDUMP, "ASN.1: VisibleString",
174 wpa_printf(MSG_DEBUG, "ASN.1: Unknown tag %d",
184 int main(int argc, char *argv[])
189 struct x509_certificate *cert;
193 f = fopen(argv[1], "rb");
196 len = fread(buf, 1, sizeof(buf), f);
199 if (asn1_parse(buf, len, 0) < 0)
200 printf("Failed to parse DER ASN.1\n");
204 cert = x509_certificate_parse(buf, len);
206 printf("Failed to parse X.509 certificate\n");
207 x509_certificate_free(cert);