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00024 #ifndef MBEDTLS_ASN1_H
00025 #define MBEDTLS_ASN1_H
00026
00027 #if !defined(MBEDTLS_CONFIG_FILE)
00028 #include "config.h"
00029 #else
00030 #include MBEDTLS_CONFIG_FILE
00031 #endif
00032
00033 #include <stddef.h>
00034
00035 #if defined(MBEDTLS_BIGNUM_C)
00036 #include "bignum.h"
00037 #endif
00038
00051 #define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060
00052 #define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062
00053 #define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064
00054 #define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066
00055 #define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068
00056 #define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A
00057 #define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C
00059
00060
00072 #define MBEDTLS_ASN1_BOOLEAN 0x01
00073 #define MBEDTLS_ASN1_INTEGER 0x02
00074 #define MBEDTLS_ASN1_BIT_STRING 0x03
00075 #define MBEDTLS_ASN1_OCTET_STRING 0x04
00076 #define MBEDTLS_ASN1_NULL 0x05
00077 #define MBEDTLS_ASN1_OID 0x06
00078 #define MBEDTLS_ASN1_UTF8_STRING 0x0C
00079 #define MBEDTLS_ASN1_SEQUENCE 0x10
00080 #define MBEDTLS_ASN1_SET 0x11
00081 #define MBEDTLS_ASN1_PRINTABLE_STRING 0x13
00082 #define MBEDTLS_ASN1_T61_STRING 0x14
00083 #define MBEDTLS_ASN1_IA5_STRING 0x16
00084 #define MBEDTLS_ASN1_UTC_TIME 0x17
00085 #define MBEDTLS_ASN1_GENERALIZED_TIME 0x18
00086 #define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C
00087 #define MBEDTLS_ASN1_BMP_STRING 0x1E
00088 #define MBEDTLS_ASN1_PRIMITIVE 0x00
00089 #define MBEDTLS_ASN1_CONSTRUCTED 0x20
00090 #define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80
00091
00092
00093
00094
00095
00096
00097
00098
00099
00100
00101
00102 #define MBEDTLS_ASN1_TAG_CLASS_MASK 0xC0
00103 #define MBEDTLS_ASN1_TAG_PC_MASK 0x20
00104 #define MBEDTLS_ASN1_TAG_VALUE_MASK 0x1F
00105
00106
00107
00108
00110 #define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1)
00111
00118 #define MBEDTLS_OID_CMP(oid_str, oid_buf) \
00119 ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) || \
00120 memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
00121
00122 #ifdef __cplusplus
00123 extern "C" {
00124 #endif
00125
00134 typedef struct mbedtls_asn1_buf
00135 {
00136 int tag;
00137 size_t len;
00138 unsigned char *p;
00139 }
00140 mbedtls_asn1_buf;
00141
00145 typedef struct mbedtls_asn1_bitstring
00146 {
00147 size_t len;
00148 unsigned char unused_bits;
00149 unsigned char *p;
00150 }
00151 mbedtls_asn1_bitstring;
00152
00156 typedef struct mbedtls_asn1_sequence
00157 {
00158 mbedtls_asn1_buf buf;
00159 struct mbedtls_asn1_sequence *next;
00160 }
00161 mbedtls_asn1_sequence;
00162
00166 typedef struct mbedtls_asn1_named_data
00167 {
00168 mbedtls_asn1_buf oid;
00169 mbedtls_asn1_buf val;
00170 struct mbedtls_asn1_named_data *next;
00171 unsigned char next_merged;
00172 }
00173 mbedtls_asn1_named_data;
00174
00187 int mbedtls_asn1_get_len( unsigned char **p,
00188 const unsigned char *end,
00189 size_t *len );
00190
00203 int mbedtls_asn1_get_tag( unsigned char **p,
00204 const unsigned char *end,
00205 size_t *len, int tag );
00206
00217 int mbedtls_asn1_get_bool( unsigned char **p,
00218 const unsigned char *end,
00219 int *val );
00220
00231 int mbedtls_asn1_get_int( unsigned char **p,
00232 const unsigned char *end,
00233 int *val );
00234
00245 int mbedtls_asn1_get_bitstring( unsigned char **p, const unsigned char *end,
00246 mbedtls_asn1_bitstring *bs);
00247
00259 int mbedtls_asn1_get_bitstring_null( unsigned char **p, const unsigned char *end,
00260 size_t *len );
00261
00273 int mbedtls_asn1_get_sequence_of( unsigned char **p,
00274 const unsigned char *end,
00275 mbedtls_asn1_sequence *cur,
00276 int tag);
00277
00278 #if defined(MBEDTLS_BIGNUM_C)
00279
00289 int mbedtls_asn1_get_mpi( unsigned char **p,
00290 const unsigned char *end,
00291 mbedtls_mpi *X );
00292 #endif
00293
00306 int mbedtls_asn1_get_alg( unsigned char **p,
00307 const unsigned char *end,
00308 mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params );
00309
00322 int mbedtls_asn1_get_alg_null( unsigned char **p,
00323 const unsigned char *end,
00324 mbedtls_asn1_buf *alg );
00325
00336 mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( mbedtls_asn1_named_data *list,
00337 const char *oid, size_t len );
00338
00344 void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *entry );
00345
00352 void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head );
00353
00354 #ifdef __cplusplus
00355 }
00356 #endif
00357
00358 #endif