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00049 #ifndef MBEDTLS_ASN1_H
00050 #define MBEDTLS_ASN1_H
00051
00052 #if !defined(MBEDTLS_CONFIG_FILE)
00053 #include "config.h"
00054 #else
00055 #include MBEDTLS_CONFIG_FILE
00056 #endif
00057
00058 #include <stddef.h>
00059
00060 #if defined(MBEDTLS_BIGNUM_C)
00061 #include "bignum.h"
00062 #endif
00063
00076 #define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060
00077 #define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062
00078 #define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064
00079 #define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066
00080 #define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068
00081 #define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A
00082 #define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C
00084
00085
00097 #define MBEDTLS_ASN1_BOOLEAN 0x01
00098 #define MBEDTLS_ASN1_INTEGER 0x02
00099 #define MBEDTLS_ASN1_BIT_STRING 0x03
00100 #define MBEDTLS_ASN1_OCTET_STRING 0x04
00101 #define MBEDTLS_ASN1_NULL 0x05
00102 #define MBEDTLS_ASN1_OID 0x06
00103 #define MBEDTLS_ASN1_UTF8_STRING 0x0C
00104 #define MBEDTLS_ASN1_SEQUENCE 0x10
00105 #define MBEDTLS_ASN1_SET 0x11
00106 #define MBEDTLS_ASN1_PRINTABLE_STRING 0x13
00107 #define MBEDTLS_ASN1_T61_STRING 0x14
00108 #define MBEDTLS_ASN1_IA5_STRING 0x16
00109 #define MBEDTLS_ASN1_UTC_TIME 0x17
00110 #define MBEDTLS_ASN1_GENERALIZED_TIME 0x18
00111 #define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C
00112 #define MBEDTLS_ASN1_BMP_STRING 0x1E
00113 #define MBEDTLS_ASN1_PRIMITIVE 0x00
00114 #define MBEDTLS_ASN1_CONSTRUCTED 0x20
00115 #define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80
00116
00117
00118
00119
00120
00121
00122
00123
00124
00125
00126
00127 #define MBEDTLS_ASN1_TAG_CLASS_MASK 0xC0
00128 #define MBEDTLS_ASN1_TAG_PC_MASK 0x20
00129 #define MBEDTLS_ASN1_TAG_VALUE_MASK 0x1F
00130
00131
00132
00133
00135 #define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1)
00136
00143 #define MBEDTLS_OID_CMP(oid_str, oid_buf) \
00144 ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) || \
00145 memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
00146
00147 #ifdef __cplusplus
00148 extern "C" {
00149 #endif
00150
00159 typedef struct mbedtls_asn1_buf
00160 {
00161 int tag;
00162 size_t len;
00163 unsigned char *p;
00164 }
00165 mbedtls_asn1_buf;
00166
00170 typedef struct mbedtls_asn1_bitstring
00171 {
00172 size_t len;
00173 unsigned char unused_bits;
00174 unsigned char *p;
00175 }
00176 mbedtls_asn1_bitstring;
00177
00181 typedef struct mbedtls_asn1_sequence
00182 {
00183 mbedtls_asn1_buf buf;
00184 struct mbedtls_asn1_sequence *next;
00185 }
00186 mbedtls_asn1_sequence;
00187
00191 typedef struct mbedtls_asn1_named_data
00192 {
00193 mbedtls_asn1_buf oid;
00194 mbedtls_asn1_buf val;
00195 struct mbedtls_asn1_named_data *next;
00196 unsigned char next_merged;
00197 }
00198 mbedtls_asn1_named_data;
00199
00212 int mbedtls_asn1_get_len( unsigned char **p,
00213 const unsigned char *end,
00214 size_t *len );
00215
00228 int mbedtls_asn1_get_tag( unsigned char **p,
00229 const unsigned char *end,
00230 size_t *len, int tag );
00231
00242 int mbedtls_asn1_get_bool( unsigned char **p,
00243 const unsigned char *end,
00244 int *val );
00245
00256 int mbedtls_asn1_get_int( unsigned char **p,
00257 const unsigned char *end,
00258 int *val );
00259
00270 int mbedtls_asn1_get_bitstring( unsigned char **p, const unsigned char *end,
00271 mbedtls_asn1_bitstring *bs);
00272
00284 int mbedtls_asn1_get_bitstring_null( unsigned char **p, const unsigned char *end,
00285 size_t *len );
00286
00298 int mbedtls_asn1_get_sequence_of( unsigned char **p,
00299 const unsigned char *end,
00300 mbedtls_asn1_sequence *cur,
00301 int tag);
00302
00303 #if defined(MBEDTLS_BIGNUM_C)
00304
00314 int mbedtls_asn1_get_mpi( unsigned char **p,
00315 const unsigned char *end,
00316 mbedtls_mpi *X );
00317 #endif
00318
00331 int mbedtls_asn1_get_alg( unsigned char **p,
00332 const unsigned char *end,
00333 mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params );
00334
00347 int mbedtls_asn1_get_alg_null( unsigned char **p,
00348 const unsigned char *end,
00349 mbedtls_asn1_buf *alg );
00350
00361 mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( mbedtls_asn1_named_data *list,
00362 const char *oid, size_t len );
00363
00369 void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *entry );
00370
00377 void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head );
00378
00379 #ifdef __cplusplus
00380 }
00381 #endif
00382
00383 #endif