summaryrefslogtreecommitdiff
path: root/src/libstrongswan/asn1/asn1.h
diff options
context:
space:
mode:
authorRene Mayrhofer <rene@mayrhofer.eu.org>2007-04-12 20:41:31 +0000
committerRene Mayrhofer <rene@mayrhofer.eu.org>2007-04-12 20:41:31 +0000
commit774a362e87feab25f1be16fbca08269ddc7121a4 (patch)
treecf71f4e7466468ac3edc2127125f333224a9acfb /src/libstrongswan/asn1/asn1.h
parentc54a140a445bfe7aa66721f68bb0781f26add91c (diff)
downloadvyos-strongswan-774a362e87feab25f1be16fbca08269ddc7121a4.tar.gz
vyos-strongswan-774a362e87feab25f1be16fbca08269ddc7121a4.zip
Major new upstream release, just ran svn-upgrade for now (and wrote some
debian/changelong entries).
Diffstat (limited to 'src/libstrongswan/asn1/asn1.h')
-rw-r--r--src/libstrongswan/asn1/asn1.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/libstrongswan/asn1/asn1.h b/src/libstrongswan/asn1/asn1.h
new file mode 100644
index 000000000..5ab519ec8
--- /dev/null
+++ b/src/libstrongswan/asn1/asn1.h
@@ -0,0 +1,135 @@
+/* Simple ASN.1 parser
+ * Copyright (C) 2000-2004 Andreas Steffen, Zuercher Hochschule Winterthur
+ * Copyright (C) 2006 Martin Will, Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#ifndef _ASN1_H
+#define _ASN1_H
+
+#include <stdarg.h>
+#include <gmp.h>
+
+#include <library.h>
+#include <asn1/oid.h>
+
+
+/* Defines some primitive ASN1 types */
+typedef enum {
+ ASN1_EOC = 0x00,
+ ASN1_BOOLEAN = 0x01,
+ ASN1_INTEGER = 0x02,
+ ASN1_BIT_STRING = 0x03,
+ ASN1_OCTET_STRING = 0x04,
+ ASN1_NULL = 0x05,
+ ASN1_OID = 0x06,
+ ASN1_ENUMERATED = 0x0A,
+ ASN1_UTF8STRING = 0x0C,
+ ASN1_NUMERICSTRING = 0x12,
+ ASN1_PRINTABLESTRING = 0x13,
+ ASN1_T61STRING = 0x14,
+ ASN1_VIDEOTEXSTRING = 0x15,
+ ASN1_IA5STRING = 0x16,
+ ASN1_UTCTIME = 0x17,
+ ASN1_GENERALIZEDTIME = 0x18,
+ ASN1_GRAPHICSTRING = 0x19,
+ ASN1_VISIBLESTRING = 0x1A,
+ ASN1_GENERALSTRING = 0x1B,
+ ASN1_UNIVERSALSTRING = 0x1C,
+ ASN1_BMPSTRING = 0x1E,
+
+ ASN1_CONSTRUCTED = 0x20,
+
+ ASN1_SEQUENCE = 0x30,
+
+ ASN1_SET = 0x31,
+
+ ASN1_CONTEXT_S_0 = 0x80,
+ ASN1_CONTEXT_S_1 = 0x81,
+ ASN1_CONTEXT_S_2 = 0x82,
+ ASN1_CONTEXT_S_3 = 0x83,
+ ASN1_CONTEXT_S_4 = 0x84,
+ ASN1_CONTEXT_S_5 = 0x85,
+ ASN1_CONTEXT_S_6 = 0x86,
+ ASN1_CONTEXT_S_7 = 0x87,
+ ASN1_CONTEXT_S_8 = 0x88,
+
+ ASN1_CONTEXT_C_0 = 0xA0,
+ ASN1_CONTEXT_C_1 = 0xA1,
+ ASN1_CONTEXT_C_2 = 0xA2,
+ ASN1_CONTEXT_C_3 = 0xA3,
+ ASN1_CONTEXT_C_4 = 0xA4,
+ ASN1_CONTEXT_C_5 = 0xA5
+} asn1_t;
+
+/* Definition of ASN1 flags */
+
+#define ASN1_NONE 0x00
+#define ASN1_DEF 0x01
+#define ASN1_OPT 0x02
+#define ASN1_LOOP 0x04
+#define ASN1_END 0x08
+#define ASN1_OBJ 0x10
+#define ASN1_BODY 0x20
+#define ASN1_RAW 0x40
+
+#define ASN1_INVALID_LENGTH 0xffffffff
+
+/* definition of an ASN.1 object */
+
+typedef struct {
+ u_int level;
+ const u_char *name;
+ asn1_t type;
+ u_char flags;
+} asn1Object_t;
+
+#define ASN1_MAX_LEVEL 10
+
+typedef struct {
+ bool implicit;
+ bool private;
+ u_int level0;
+ u_int loopAddr[ASN1_MAX_LEVEL+1];
+ chunk_t blobs[ASN1_MAX_LEVEL+2];
+} asn1_ctx_t;
+
+/* some common prefabricated ASN.1 constants */
+extern const chunk_t ASN1_INTEGER_0;
+extern const chunk_t ASN1_INTEGER_1;
+extern const chunk_t ASN1_INTEGER_2;
+
+/* some popular algorithmIdentifiers */
+extern const chunk_t ASN1_md5_id;
+extern const chunk_t ASN1_sha1_id;
+extern const chunk_t ASN1_rsaEncryption_id;
+extern const chunk_t ASN1_md5WithRSA_id;
+extern const chunk_t ASN1_sha1WithRSA_id;
+
+extern chunk_t asn1_algorithmIdentifier(int oid);
+extern int known_oid(chunk_t object);
+extern u_int asn1_length(chunk_t *blob);
+extern bool is_printablestring(chunk_t str);
+extern time_t asn1totime(const chunk_t *utctime, asn1_t type);
+extern void asn1_init(asn1_ctx_t *ctx, chunk_t blob, u_int level0, bool implicit, bool private);
+extern bool extract_object(asn1Object_t const *objects, u_int *objectID, chunk_t *object, u_int *level, asn1_ctx_t *ctx);
+extern bool parse_asn1_simple_object(chunk_t *object, asn1_t type, u_int level, const char* name);
+extern int parse_algorithmIdentifier(chunk_t blob, int level0, chunk_t *parameters);
+extern bool is_asn1(chunk_t blob);
+
+extern void code_asn1_length(size_t length, chunk_t *code);
+extern u_char* build_asn1_object(chunk_t *object, asn1_t type, size_t datalen);
+extern chunk_t asn1_integer_from_mpz(const mpz_t value);
+extern chunk_t asn1_simple_object(asn1_t tag, chunk_t content);
+extern chunk_t asn1_wrap(asn1_t type, const char *mode, ...);
+
+#endif /* _ASN1_H */